/* ==================== 全局重置与变量 ==================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  /* 禁用Android蓝色点击热区提示，使用自定义样式 */
  -webkit-tap-highlight-color: transparent;
}

/* 全局文字选中样式 - RAI主题色 */
::selection {
  background: var(--color-saturn-yellow);
  color: var(--bg-primary);
  /* 圆角效果：通过box-decoration-break实现多行选中文字的圆角 */
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
  border-radius: 4px;
}

::-moz-selection {
  background: var(--color-saturn-yellow);
  color: var(--bg-primary);
}

/*
 * RAI surface contract: cards, floating panels, menus, and dialogs do not gain
 * decorative perimeter strokes. Express hierarchy with tonal surfaces, spacing,
 * radius, and a soft lower-right shadow. Borders remain valid only when they carry
 * meaning: form control boundaries, keyboard interaction state, structural/table separators,
 * selection, or warning/error state.
 */
:root {
  --font-sans-en: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-sans-zh-cn: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Noto Sans SC", sans-serif;
  --font-sans-zh-tw: -apple-system, BlinkMacSystemFont, "PingFang TC", "Microsoft JhengHei", "Noto Sans CJK TC", "Noto Sans TC", sans-serif;
  --font-sans: var(--font-sans-zh-cn);
  --bg-primary: #11120f;
  --bg-secondary: #1b1c18;
  --bg-tertiary: #292a24;
  --bg-hover: #36372f;
  --text-primary: #ECECEC;
  --text-secondary: #ACACAC;
  --text-tertiary: #6E6E6E;
  --border-color: #2d2e27;
  --border-dark: #44453c;
  --accent-color: #FFFFFF;
  --accent-hover: #E0E0E0;
  --focus-ring-color: color-mix(in srgb, var(--text-primary) 42%, transparent);
  --focus-border-color: color-mix(in srgb, var(--text-primary) 28%, var(--border-color));
  --input-bg: #22231f;
  --home-sidebar-bg: #171814;
  --notification-surface-bg: rgba(31, 32, 27, 0.8);
  --notification-surface-unread-bg: rgba(45, 46, 38, 0.8);
  --composer-surface-bg: rgba(31, 32, 27, 0.8);
  --menu-motion-duration: 0.75s;
  --menu-motion-easing: cubic-bezier(0.16, 1, 0.3, 1);
  --error-color: #EF4444;
  --warning-color: #F59E0B;
  --success-color: #2aa97f;
  --thinking-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  /* Thinking UI Colors */
  --color-black: #000000;
  --color-white: #ffffff;
  --color-gray: #808080;
  --color-saturn-yellow: #FFC107;
  --deepseek-blue: #4D6BFE;
  --sidebar-width: 280px;
  --header-height: 60px;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 20px;
  --spacing-xl: 28px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.6);
  --floating-menu-shadow: 0 16px 34px rgba(0, 0, 0, 0.22);
  --z-modal: 1000;
  --z-overlay: 999;
  --z-sidebar: 100;
  --z-header: 90;
  --app-height: 100vh;
  --composer-height: 200px;
  --composer-bottom-gap: 0px;
  --chat-content-bottom-clearance: calc(var(--composer-height, 200px) + var(--composer-bottom-gap, 0px) + var(--spacing-md));
  --keyboard-offset: 0px;
  --viewport-offset-top: 0px;
}

/* 浅色主题 */
[data-theme="light"] {
  --bg-primary: #f7f7f2;
  --bg-secondary: #efefe8;
  --bg-tertiary: #e3e3da;
  --bg-hover: #d6d6cc;
  --text-primary: #1A1A1A;
  --text-secondary: #525252;
  --text-tertiary: #A3A3A3;
  --border-color: #e0e0d7;
  --border-dark: #cecec3;
  --accent-color: #000000;
  --accent-hover: #404040;
  --input-bg: #eeede6;
  --home-sidebar-bg: #f0f0e9;
  --notification-surface-bg: rgba(250, 250, 246, 0.8);
  --notification-surface-unread-bg: rgba(237, 237, 228, 0.8);
  --composer-surface-bg: rgba(250, 250, 246, 0.8);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
  --floating-menu-shadow: 0 16px 34px rgba(0, 0, 0, 0.12);
}

html[lang="zh-CN"] {
  --font-sans: var(--font-sans-zh-cn);
}

html[lang="zh-TW"] {
  --font-sans: var(--font-sans-zh-tw);
}

html[lang="en"],
html[lang="en-US"] {
  --font-sans: var(--font-sans-en);
}

html[data-font-preference="system"] {
  --font-sans-en: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-sans-zh-cn: -apple-system, BlinkMacSystemFont, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  --font-sans-zh-tw: -apple-system, BlinkMacSystemFont, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", "Segoe UI", sans-serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

html[data-font-preference="rai-v1"] {
  --font-sans-en: "RAI Elms Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-sans-zh-cn: "RAI Elms Sans", "RAI Noto Sans SC", "RAI Noto Sans TC", -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-sans-zh-tw: "RAI Elms Sans", "RAI Noto Sans TC", "RAI Noto Sans SC", -apple-system, BlinkMacSystemFont, "PingFang TC", "Microsoft JhengHei", sans-serif;
}

html,
body {
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
  overflow-x: hidden;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  inset: 0;
  transition: background-color 0.3s, color 0.3s;
}

html[lang="zh-CN"] body {
  font-family: var(--font-sans-zh-cn);
}

html[lang="zh-TW"] body {
  font-family: var(--font-sans-zh-tw);
}

html[lang="en"] body,
html[lang="en-US"] body {
  font-family: var(--font-sans-en);
}

html.mobile-viewport-managed,
body.mobile-viewport-managed {
  height: var(--app-height);
  min-height: var(--app-height);
  max-height: var(--app-height);
}

body.mobile-viewport-managed {
  position: relative;
  inset: auto;
  overflow: hidden;
  --composer-bottom-gap: 10px;
}

body.mobile-viewport-managed .app-container {
  height: var(--app-height);
  min-height: var(--app-height);
}

body.mobile-viewport-managed .main-content {
  position: relative;
  top: auto;
  left: auto;
  right: auto;
  bottom: auto;
  width: auto;
  height: 100%;
  min-height: 0;
}

body.mobile-viewport-managed .chat-container {
  padding-bottom: var(--chat-content-bottom-clearance);
  scroll-padding-bottom: var(--chat-content-bottom-clearance);
  overscroll-behavior-y: contain;
  -webkit-overflow-scrolling: touch;
}

body.mobile-viewport-managed .input-area {
  position: absolute;
  bottom: var(--composer-bottom-gap, 0px);
  left: 0;
  right: 0;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-top: none;
  padding: var(--spacing-md);
  padding-bottom: 0;
  flex-shrink: 0;
}

body.mobile-viewport-managed .input-wrapper {
  max-width: 100%;
}

body.mobile-viewport-managed .input-container {
  background: var(--composer-surface-bg);
  backdrop-filter: blur(24px) saturate(120%);
  -webkit-backdrop-filter: blur(24px) saturate(120%);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.22);
  border: none;
  padding-bottom: calc(var(--spacing-md) + env(safe-area-inset-bottom, 0px));
}

[data-theme="light"] body.mobile-viewport-managed .input-container {
  background: var(--composer-surface-bg);
}

body.mobile-viewport-managed .main-content::after,
body.mobile-viewport-managed .chat-edge-blur-bottom {
  display: none;
}



.material-symbols-outlined {
  display: inline-block;
  vertical-align: middle;
  fill: currentColor;
  width: 1em;
  height: 1em;
  /* font-variation-settings removed */
}

.hidden {
  display: none !important;
}

/* ==================== 布局容器 ==================== */
.app-container {
  display: flex;
  width: 100%;
  max-width: 100%;
  height: 100%;
  min-height: 0;
  background-color: transparent;
  /* 改为透明 */
  position: relative;
  overflow: hidden;
  overflow-x: hidden;
  z-index: 1;
  /* 确保在canvas之上 */
}

/* ==================== 侧边栏 ==================== */
.sidebar {
  width: var(--sidebar-width);
  background: var(--home-sidebar-bg);
  border-right: none;
  display: flex;
  flex-direction: column;
  will-change: transform;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  z-index: var(--z-sidebar);
}

.sidebar.dragging {
  transition: none;
}

/* 固定顶部区域 */
.sidebar-header-fixed {
  padding: var(--spacing-lg);
  flex-shrink: 0;
  border-bottom: none;
}

/* PC侧边栏顶栏控制按钮 */
.sidebar-header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.sidebar-header-controls {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.sidebar-control-btn {
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: background 0.2s;
}

.sidebar-control-btn:hover {
  background: color-mix(in srgb, var(--text-primary) 8%, transparent);
}

.sidebar-control-btn:active {
  background: color-mix(in srgb, var(--text-primary) 12%, transparent);
}

.sidebar-lang-text {
  font-size: 14px;
  font-weight: 600;
  min-width: 18px;
  text-align: center;
}

.language-toggle-btn {
  position: relative;
}

.language-toggle-icon {
  width: 22px;
  height: 22px;
  display: block;
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

[data-theme="light"] .language-toggle-icon {
  filter: brightness(0) saturate(1);
}

.language-toggle-text {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.logo-section {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: 0;
}

.logo-icon {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  background: var(--bg-tertiary);
  border-radius: 50% 10px 10px 10px;
  padding: 3px;
}

.logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.brand-with-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.brand-badge-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 7px;
  border-radius: 999px;
  border: 1px solid rgba(245, 213, 71, 0.28);
  background: rgba(245, 213, 71, 0.12);
  color: #f5d547;
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transform: translateY(-1px);
}

.logo-text-col {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.logo-subtitle {
  font-size: 10px;
  color: var(--text-tertiary);
  margin-top: 2px;
  font-weight: 400;
}

.new-chat-btn {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: none;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.new-chat-btn:hover {
  background: var(--bg-hover);
}

.file-library-entry {
  width: 100%;
  min-height: 42px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 14px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-secondary);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
}

.file-library-entry:hover,
.file-library-entry.active {
  background: color-mix(in srgb, var(--text-primary) 8%, transparent);
  color: var(--text-primary);
}

/* 搜索框 */
.search-box {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  width: 100%;
  box-sizing: border-box;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-tertiary);
  border: none;
  border-radius: var(--radius-md);
  transition: all 0.2s;
  margin-bottom: var(--spacing-md);
}

.search-box:focus-within {
  background: var(--bg-hover);
}

.search-box .material-symbols-outlined {
  font-size: 20px;
  color: var(--text-tertiary);
}

.search-box input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
}

.search-box input::placeholder {
  color: var(--text-tertiary);
}

@media (min-width: 769px) {
  .sidebar-header-fixed .search-box {
    max-width: none;
    margin-right: 0;
  }
}

/* 可滚动中间区域 */
.sidebar-scrollable {
  flex: 1;
  overflow-y: auto;
  overflow-anchor: none;
  padding: var(--spacing-md);
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

.sidebar-scrollable::-webkit-scrollbar {
  width: 5px;
}

.sidebar-scrollable::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar-scrollable::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

/* 侧边栏滚动区域边缘羽化效果 */
.sidebar-scrollable-wrapper {
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-scrollable-wrapper .sidebar-scrollable {
  flex: 1;
}

/* 侧边栏顶部羽化 - 颜色渐变层 */
.sidebar-scrollable-wrapper::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 40px;
  /* 侧边栏顶部渐变高度 */
  background: linear-gradient(to bottom,
      var(--home-sidebar-bg) 0%,
      rgba(26, 26, 26, 0.7) 40%,
      transparent 100%);
  pointer-events: none;
  z-index: 5;
}

/* 侧边栏底部羽化 - 颜色渐变层 */
.sidebar-scrollable-wrapper::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40px;
  /* 侧边栏底部渐变高度 */
  background: linear-gradient(to top,
      var(--home-sidebar-bg) 0%,
      rgba(26, 26, 26, 0.7) 40%,
      transparent 100%);
  pointer-events: none;
  z-index: 5;
}

/* 浅色主题侧边栏羽化 */
[data-theme="light"] .sidebar-scrollable-wrapper::before {
  background: linear-gradient(to bottom,
      var(--home-sidebar-bg) 0%,
      rgba(245, 245, 245, 0.7) 40%,
      transparent 100%);
}

[data-theme="light"] .sidebar-scrollable-wrapper::after {
  background: linear-gradient(to top,
      var(--home-sidebar-bg) 0%,
      rgba(245, 245, 245, 0.7) 40%,
      transparent 100%);
}

/* 侧边栏边缘模糊层 */
.sidebar-edge-blur-top,
.sidebar-edge-blur-bottom {
  position: absolute;
  left: 0;
  right: 0;
  height: 30px;
  /* 侧边栏模糊层高度 */
  pointer-events: none;
  z-index: 6;
  backdrop-filter: blur(15px);
  /* 模糊强度增加5倍 */
  -webkit-backdrop-filter: blur(15px);
}

.sidebar-edge-blur-top {
  top: 0;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.4) 60%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.4) 60%, transparent 100%);
}

.sidebar-edge-blur-bottom {
  bottom: 0;
  mask-image: linear-gradient(to top, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.4) 60%, transparent 100%);
  -webkit-mask-image: linear-gradient(to top, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.4) 60%, transparent 100%);
}

/* 分组样式 */
.sidebar-group {
  margin-bottom: var(--spacing-lg);
}

.sidebar-group-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background 0.2s;
  user-select: none;
}

.sidebar-group-header:hover {
  background: var(--bg-tertiary);
}

.sidebar-group-header .material-symbols-outlined {
  font-size: 20px;
  color: var(--text-primary);
}

.sidebar-group-title {
  flex: 1;
}

.sidebar-beta-badge {
  flex: 0 0 auto;
  padding: 2px 7px;
  border-radius: 999px;
  background: rgba(255, 193, 7, 0.16);
  color: var(--color-saturn-yellow);
  font-size: 11px;
  font-weight: 760;
  line-height: 1.3;
}

.group-toggle-icon {
  font-size: 20px;
  transition: transform var(--menu-motion-duration) var(--menu-motion-easing);
  color: var(--text-secondary);
}

.group-toggle-icon.collapsed {
  transform: rotate(180deg);
}

.sidebar-group-content {
  padding-left: var(--spacing-md);
  margin-top: var(--spacing-sm);
  max-height: 99999px;
  overflow: hidden;
  transition: max-height var(--menu-motion-duration) var(--menu-motion-easing), opacity var(--menu-motion-duration) var(--menu-motion-easing);
  opacity: 1;
}

.sidebar-group-content.collapsed {
  max-height: 0;
  opacity: 0;
}

/* 内联新建空间按钮 */
.new-space-btn-inline {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-tertiary);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
}

.new-space-btn-inline:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.new-space-btn-inline .material-symbols-outlined {
  font-size: 16px;
}

/* ==================== ChatFlow 样式 ==================== */

/* 新建 ChatFlow 按钮 - 与新建空间按钮保持一致 */
.new-flow-btn-inline {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-tertiary);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
}

.new-flow-btn-inline:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.new-flow-btn-inline .material-symbols-outlined {
  font-size: 16px;
}

/* ChatFlow 列表 */
.flows-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.flow-empty-hint {
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--text-tertiary);
  font-size: 12px;
}

.flow-item {
  padding: var(--spacing-sm) var(--spacing-md);
  background: transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--text-secondary);
  font-size: 13px;
}

.flow-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.flow-item.active {
  background: var(--bg-tertiary);
  color: var(--color-saturn-yellow);
}

.flow-item.active .flow-item-title {
  color: var(--color-saturn-yellow);
}

.flow-item-icon {
  width: 18px;
  height: 18px;
  opacity: 0.7;
  flex-shrink: 0;
}

.flow-group-logo {
  flex-shrink: 0;
}

.rai-flow-logo {
  opacity: 1;
}

.flow-item-main {
  flex: 1;
  min-width: 0;
}

.flow-item-title {
  color: var(--text-primary);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.flow-item-preview {
  margin-top: 3px;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.35;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.flow-item-delete {
  opacity: 0;
  background: none;
  border: none;
  padding: 2px;
  cursor: pointer;
  color: var(--text-tertiary);
  transition: opacity 0.2s, color 0.2s;
  flex-shrink: 0;
}

.flow-item:hover .flow-item-delete {
  opacity: 1;
}

.flow-item-delete:hover {
  color: var(--error-color);
}

/* ChatFlow 工作区布局 */
.chatflow-workspace {
  position: relative;
  display: flex;
  flex: 1 1 0;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  height: 100%;
  background: var(--bg-primary);
  z-index: 2;
  overflow: hidden;
  --chatflow-mobile-panel-height: 50vh;
  transition: opacity var(--menu-motion-duration) var(--menu-motion-easing), transform var(--menu-motion-duration) var(--menu-motion-easing);
}

.chatflow-workspace[hidden],
.chatflow-divider[hidden] {
  display: none !important;
}

/* ChatFlow 开关动画：PC 大屏下中心对话向左让位、ChatFlow 从右向左滑入/滑出，与 +号/模型菜单统一 0.75s 非线性速率 */
.chatflow-workspace.canvas-enter,
.chatflow-divider.canvas-enter {
  opacity: 0;
  transform: translateX(100%);
  pointer-events: none;
}

.main-content > .chat-panel {
  position: relative;
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  height: 100%;
  overflow: hidden;
}

.main-content.canvas-open {
  flex-direction: row;
}

.main-content.canvas-open > .chat-panel {
  flex: 0 0 var(--chatflow-desktop-chat-width, 52%);
  width: var(--chatflow-desktop-chat-width, 52%);
}

/* 桌面端（>1024px 横屏）打开 ChatFlow：对话面板宽度平滑收窄向左移动，ChatFlow 同步从右滑入 */
@media (min-width: 1025px) {
  .main-content > .chat-panel {
    flex: 0 0 auto;
    width: 100%;
    transition: width var(--menu-motion-duration) var(--menu-motion-easing);
  }

  .main-content.canvas-open > .chat-panel {
    flex: 0 0 auto;
    width: var(--chatflow-desktop-chat-width, 52%);
  }

  /* 关闭中间态：布局保持 row，但对话面板立即开始向右回弹，与 ChatFlow 滑出并行 */
  .main-content.canvas-closing > .chat-panel {
    flex: 0 0 auto;
    width: 100%;
  }
}

.main-content.canvas-open::before,
.main-content.canvas-open::after {
  display: none;
}

.chatflow-back-btn {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  color: var(--text-secondary);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}

.chatflow-back-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--color-saturn-yellow);
}

.chatflow-back-btn svg {
  width: 18px;
  height: 18px;
}

/* 左侧 LLM 面板 */
.chatflow-llm-panel {
  width: 30%;
  min-width: 320px;
  max-width: 50%;
  display: flex;
  flex-direction: column;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  position: relative;
  min-height: 0;
  z-index: 20;
}

.chatflow-sheet-grabber {
  display: none;
  align-items: center;
  justify-content: center;
  padding: 8px 0 2px;
  cursor: ns-resize;
  touch-action: none;
}

.chatflow-sheet-grabber span {
  display: block;
  width: 54px;
  height: 5px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.24);
}

.chatflow-header {
  min-height: 68px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.chatflow-header-main {
  min-width: 0;
  display: grid;
  gap: 3px;
}

.chatflow-title {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.chatflow-header-meta {
  margin: 0;
  font-size: 12px;
  color: var(--text-tertiary);
}

.chatflow-header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex: 0 0 auto;
}

.canvas-close-btn {
  width: 34px;
  height: 34px;
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.canvas-close-btn:hover,
.canvas-close-btn:focus-visible {
  outline: none;
  background: var(--bg-hover);
  color: var(--text-primary);
}

.canvas-close-btn:active {
  transform: scale(0.94);
}

.canvas-close-btn svg {
  width: 17px;
  height: 17px;
  display: block;
}

.chatflow-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  min-height: 0;
}

/* ChatFlow iframe 样式 */
.chatflow-iframe {
  width: 100%;
  flex: 1;
  border: none;
  background: var(--bg-primary);
}

.chatflow-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-tertiary);
  text-align: center;
  gap: 12px;
}

.chatflow-empty-state svg {
  opacity: 0.3;
}

.chatflow-empty-state p {
  margin: 0;
  font-size: 14px;
}

.chatflow-input-area {
  padding: 16px;
  border-top: 1px solid var(--border-color);
  background: inherit;
}


.chatflow-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.5;
  resize: none;
  max-height: 120px;
}

.chatflow-input::placeholder {
  color: var(--text-tertiary);
}

.chatflow-send-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-saturn-yellow);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s, opacity 0.2s;
  flex-shrink: 0;
}

.chatflow-send-btn:hover {
  transform: scale(1.1);
}

.chatflow-send-btn svg {
  color: #000;
}

/* 可拖拽分隔栏 */
.chatflow-divider {
  width: 6px;
  cursor: col-resize;
  background: transparent;
  transition: background 0.2s, opacity var(--menu-motion-duration) var(--menu-motion-easing), transform var(--menu-motion-duration) var(--menu-motion-easing);
  position: relative;
}

.chatflow-divider::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 2px;
  height: 40px;
  background: var(--border-color);
  border-radius: 1px;
  transition: background 0.2s, height 0.2s;
}

.chatflow-divider:hover::after {
  background: var(--color-saturn-yellow);
  height: 60px;
}

/* 无限画布区域 */
.chatflow-canvas-container {
  flex: 1;
  position: relative;
  overflow: hidden;
  overscroll-behavior: none;
  background: var(--bg-primary);
}

.infinite-canvas {
  width: 100%;
  height: 100%;
  cursor: grab;
  user-select: none;
  touch-action: none;
}

.infinite-canvas:active {
  cursor: grabbing;
}

.canvas-bg {
  pointer-events: all;
}

/* 画布提示 */
.canvas-hint {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--text-tertiary);
  pointer-events: none;
  opacity: 0.5;
}

.canvas-hint svg {
  opacity: 0.3;
}

.canvas-hint span {
  font-size: 14px;
}

/* 缩放控制 */
.canvas-zoom-controls {
  position: absolute;
  bottom: 20px;
  right: 20px;
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 4px 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.canvas-zoom-btn {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: background 0.2s, color 0.2s;
}

.canvas-zoom-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.canvas-zoom-level {
  font-size: 12px;
  color: var(--text-secondary);
  min-width: 40px;
  text-align: center;
  user-select: none;
}

/* ==================== ChatFlow 增强输入框样式 ==================== */

.chatflow-input-wrapper {
  width: 100%;
}

.chatflow-input-container {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 12px 16px;
  transition: border-color 0.2s;
}

.chatflow-input-container:focus-within {
  border-color: var(--focus-border-color);
}

.chatflow-input-row {
  width: 100%;
}

.chatflow-message-input {
  width: 100%;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.5;
  resize: none;
  max-height: 150px;
  min-height: 24px;
}

.chatflow-message-input::placeholder {
  color: var(--text-tertiary);
}

.chatflow-input-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border-color);
}

.chatflow-toolbar-btn {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: background 0.2s, color 0.2s;
}

.chatflow-toolbar-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.chatflow-toolbar-btn.active {
  background: var(--bg-hover);
  color: var(--color-saturn-yellow);
}

.chatflow-toolbar-spacer {
  flex: 1;
}

.chatflow-more-menu-container {
  position: relative;
}

.chatflow-more-menu {
  display: none;
  position: absolute;
  bottom: 100%;
  left: 0;
  margin-bottom: 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 8px 0;
  min-width: 180px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  z-index: 100;
}

.chatflow-more-menu.active {
  display: block;
}

.chatflow-model-selector {
  position: relative;
}

.chatflow-model-select {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  background: var(--bg-hover);
  border: none;
  border-radius: 20px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-secondary);
  transition: background 0.2s, color 0.2s;
}

.chatflow-model-select:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.chatflow-model-menu {
  display: none;
  position: absolute;
  bottom: 100%;
  right: 0;
  margin-bottom: 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 8px 0;
  min-width: 160px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  z-index: 100;
}

.chatflow-model-menu.active {
  display: block;
}

.chatflow-model-menu .model-menu-item {
  padding: 10px 16px;
  cursor: pointer;
  transition: background 0.2s;
  font-size: 13px;
  color: var(--text-secondary);
}

.chatflow-model-menu .model-menu-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.chatflow-stop-btn {
  display: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--error-color);
  border: none;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  color: #fff;
  transition: transform 0.2s;
}

.chatflow-stop-btn:hover {
  transform: scale(1.1);
}

.chatflow-mode-chip {
  height: 32px;
  padding: 0 12px;
  border: 0;
  border-radius: 8px;
  background: var(--bg-hover);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.chatflow-mode-chip:hover,
.chatflow-mode-chip:focus-visible {
  outline: none;
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.chatflow-mode-chip:active {
  transform: scale(0.97);
}

.chatflow-patch-banner {
  margin: 12px 16px 0;
  padding: 12px 14px;
  border: 1px solid rgba(245, 213, 71, 0.3);
  border-radius: 14px;
  background: rgba(245, 213, 71, 0.08);
}

.chatflow-patch-banner.is-working {
  border-color: rgba(245, 213, 71, 0.42);
  background: linear-gradient(90deg, rgba(245, 213, 71, 0.12), rgba(245, 213, 71, 0.04), rgba(245, 213, 71, 0.12));
  background-size: 220% 100%;
  animation: chatflowWorkingPulse 1.8s ease-in-out infinite;
}

@keyframes chatflowWorkingPulse {
  0% {
    background-position: 0% 50%;
  }

  100% {
    background-position: 220% 50%;
  }
}

.chatflow-patch-banner-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.chatflow-patch-summary {
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.55;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
}

.chatflow-patch-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.chatflow-patch-btn {
  height: 32px;
  padding: 0 12px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.chatflow-patch-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.chatflow-patch-btn.primary {
  background: var(--color-saturn-yellow);
  color: #161616;
  border-color: transparent;
}

.chatflow-patch-btn.primary:hover {
  background: #f9df73;
}

/* ==================== ChatFlow 消息样式 ==================== */

.chatflow-message {
  padding: 0;
  margin-bottom: var(--spacing-lg);
  border-radius: 0;
  position: relative;
  cursor: default;
  transition: transform 0.2s, opacity 0.2s;
}

.chatflow-message.message {
  gap: var(--spacing-sm);
  max-width: 100%;
  margin-bottom: var(--spacing-lg);
}

.chatflow-message:active {
  cursor: default;
}

.chatflow-message.user {
  background: transparent;
  margin-left: 0;
}

.chatflow-message.assistant {
  background: transparent;
  border: none;
}

.chatflow-message:hover {
  opacity: 0.98;
}

.chatflow-message.dragging {
  opacity: 0.5;
  transform: scale(0.95);
}

.chatflow-message-drag-handle {
  position: absolute;
  left: -10px;
  top: 8px;
  width: 20px;
  height: 20px;
  cursor: grab;
  opacity: 0;
  transition: opacity 0.2s;
  color: var(--text-tertiary);
}

.chatflow-message-drag-handle:active {
  cursor: grabbing;
}

.chatflow-message .message-text {
  cursor: text;
  user-select: text;
  -webkit-user-select: text;
}

.chatflow-message:hover .chatflow-message-drag-handle {
  opacity: 1;
}

.chatflow-message.message.user .message-text {
  max-width: min(100%, 460px);
}

.chatflow-message.message.assistant .message-text {
  padding-left: 18px;
}

/* ==================== 画布节点样式 ==================== */

.canvas-node {
  cursor: move;
}

.canvas-node-bg {
  fill: var(--bg-secondary);
  stroke: var(--border-color);
  stroke-width: 1;
  rx: 8;
  ry: 8;
  transition: stroke 0.2s, stroke-width 0.2s;
}

.canvas-node:hover .canvas-node-bg {
  stroke: var(--color-saturn-yellow);
  stroke-width: 2;
}

.canvas-node.selected .canvas-node-bg {
  stroke: var(--color-saturn-yellow);
  stroke-width: 2;
}

.canvas-node-text {
  fill: var(--text-primary);
  font-size: 12px;
  font-family: inherit;
}

.canvas-node-role {
  fill: var(--text-tertiary);
  font-size: 10px;
  text-transform: uppercase;
}

.canvas-node-resize {
  fill: var(--color-saturn-yellow);
  cursor: nwse-resize;
  opacity: 0;
  transition: opacity 0.2s;
}

.canvas-node:hover .canvas-node-resize {
  opacity: 0.6;
}

.canvas-node-resize:hover {
  opacity: 1 !important;
}

/* ==================== 画布连线样式 ==================== */

.canvas-edge {
  stroke: var(--border-color);
  stroke-width: 2;
  fill: none;
  cursor: pointer;
  transition: stroke 0.2s;
}

.canvas-edge:hover {
  stroke: var(--color-saturn-yellow);
}

.canvas-edge-label {
  fill: var(--text-primary);
  font-size: 11px;
  font-weight: 600;
  text-anchor: middle;
  paint-order: stroke;
  stroke: var(--bg-primary);
  stroke-width: 3px;
  stroke-linejoin: round;
}

.canvas-edge-arrowhead {
  fill: var(--border-color);
}

/* ==================== 拖拽放置提示 ==================== */

.canvas-drop-zone {
  display: none;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(245, 213, 71, 0.1);
  border: 2px dashed var(--color-saturn-yellow);
  border-radius: 8px;
  pointer-events: none;
  z-index: 50;
}

.canvas-drop-zone.active {
  display: flex;
  align-items: center;
  justify-content: center;
}

.canvas-drop-zone-text {
  font-size: 16px;
  color: var(--color-saturn-yellow);
  font-weight: 500;
}

/* ==================== 浮动工具栏样式 ==================== */

.canvas-floating-toolbar {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  z-index: 100;
}

.canvas-tool-btn {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all 0.2s;
  position: relative;
}

.canvas-tool-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.canvas-tool-btn.active {
  background: var(--color-saturn-yellow);
  color: #000;
}

.canvas-tool-btn svg {
  width: 20px;
  height: 20px;
}

.canvas-tool-divider {
  width: 24px;
  height: 1px;
  background: var(--border-color);
  margin: 4px auto;
}

.canvas-export-menu {
  display: none;
  position: absolute;
  right: 100%;
  top: 0;
  margin-right: 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 4px 0;
  min-width: 120px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.canvas-export-menu.active {
  display: block;
}

.export-menu-item {
  padding: 10px 16px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-secondary);
  transition: background 0.2s, color 0.2s;
}

.export-menu-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* 连线预览层 */
.edge-preview-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 60;
}

/* 节点连接端口 */
.canvas-node-port {
  fill: var(--bg-secondary);
  stroke: var(--border-color);
  stroke-width: 2;
  cursor: crosshair;
  opacity: 0;
  transition: opacity 0.2s;
}

.canvas-node:hover .canvas-node-port {
  opacity: 1;
}

.canvas-node-port:hover {
  fill: var(--color-saturn-yellow);
  stroke: var(--color-saturn-yellow);
}

/* 连线样式增强 */
.canvas-edge path {
  stroke: var(--text-tertiary);
  stroke-width: 2;
  fill: none;
  transition: stroke 0.2s;
}

.canvas-edge:hover path {
  stroke: var(--color-saturn-yellow);
}

.canvas-edge-label-bg {
  fill: color-mix(in srgb, var(--bg-secondary) 94%, transparent);
  stroke: color-mix(in srgb, var(--border-dark) 90%, transparent);
  stroke-width: 1;
  rx: 4;
  ry: 4;
}

[data-theme="light"] .canvas-edge-label {
  fill: #1A1A1A;
  stroke: #FFFFFF;
}

[data-theme="light"] .canvas-edge-label-bg {
  fill: rgba(255, 255, 255, 0.94);
  stroke: #D4D4D4;
}

/* 双向高亮样式 */
.chatflow-message.highlighted {
  outline: 2px solid var(--color-saturn-yellow);
  outline-offset: 2px;
}

.canvas-node.highlighted .canvas-node-bg {
  stroke: var(--color-saturn-yellow);
  stroke-width: 3;
  filter: drop-shadow(0 0 8px rgba(245, 213, 71, 0.5));
}

/* 手机和平板使用上画布、下聊天的可调分屏。 */
@media (max-width: 1024px) {
  .main-content.canvas-open {
    flex-direction: column;
  }

  .main-content.canvas-open > .chatflow-workspace {
    order: 1;
    flex: 1 1 auto;
    width: 100%;
    height: auto;
  }

  .main-content.canvas-open > .chatflow-divider {
    order: 2;
    flex: 0 0 6px;
    width: 100%;
    height: 6px;
    cursor: row-resize;
  }

  .main-content.canvas-open > .chatflow-divider::after {
    width: 44px;
    height: 2px;
  }

  .main-content.canvas-open > .chat-panel {
    order: 3;
    flex: 0 0 var(--chatflow-mobile-panel-height, 50vh);
    width: 100%;
    height: var(--chatflow-mobile-panel-height, 50vh);
  }

  .chatflow-header {
    padding: max(10px, env(safe-area-inset-top, 0px)) 12px 8px;
    gap: 4px;
  }

  .canvas-floating-toolbar {
    right: 8px;
    padding: 4px;
  }

  .canvas-tool-btn {
    width: 32px;
    height: 32px;
  }

  .canvas-zoom-controls {
    right: 12px;
    bottom: 12px;
  }

  .chatflow-patch-banner {
    margin: 8px 12px 0;
  }

  .chatflow-mode-chip {
    max-width: 110px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}

.sidebar-tabs {
  display: none;
}

.tab-content {
  display: none;
}

/* ==================== 空间管理 ==================== */
.spaces-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.space-item {
  padding: var(--spacing-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 30px;
  /* 圆角大小，可自定义调整 */
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.space-item:hover {
  background: var(--bg-hover);
  border-color: var(--border-dark);
}

.space-item.active {
  border-color: var(--accent-color);
  background: var(--bg-hover);
}

.space-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.space-info {
  flex: 1;
  min-width: 0;
}

.space-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.space-doc-count {
  font-size: 11px;
  color: var(--text-secondary);
}

.space-actions {
  display: flex;
  gap: 4px;
}

.space-action-icon {
  width: 24px;
  height: 24px;
  padding: 0;
  background: transparent;
  color: var(--text-tertiary);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 16px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.space-action-icon:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.space-action-icon.delete:hover {
  background: var(--error-color);
  color: white;
}

/* 空间详情面板 */
.space-detail {
  display: none;
  flex-direction: column;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  margin-top: var(--spacing-md);
}

.space-detail.active {
  display: flex;
}

.space-detail-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.space-detail-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.upload-file-btn {
  padding: 6px 12px;
  background: var(--accent-color);
  color: var(--bg-primary);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 4px;
}

.upload-file-btn:hover {
  background: var(--accent-hover);
}

.document-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 300px;
  overflow-y: auto;
}

.document-item {
  padding: 8px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.document-info {
  flex: 1;
  min-width: 0;
}

.document-name {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.document-meta {
  font-size: 10px;
  color: var(--text-tertiary);
}

.document-delete {
  width: 20px;
  height: 20px;
  padding: 0;
  background: transparent;
  color: var(--text-tertiary);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.document-delete:hover {
  background: var(--error-color);
  color: white;
}

.new-space-btn {
  width: 100%;
  padding: var(--spacing-md);
  background: transparent;
  border: 1px dashed var(--border-dark);
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.new-space-btn:hover {
  background: var(--bg-tertiary);
  border-color: var(--accent-color);
  color: var(--text-primary);
}


.sessions-container {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.pinned-sessions { margin: 0 0 10px; }
.sidebar-subgroup-title, .session-date-group { padding: 10px 12px 5px; color: var(--text-secondary); font-size: 12px; font-weight: 600; }
.session-date-group { padding: 18px 12px 8px; }
.session-date-group:first-child { padding-top: 10px; }
.session-item { position: relative; }
.session-menu-btn { margin-left: 4px; width: 30px; height: 30px; border: 0; border-radius: var(--radius-sm); background: transparent; color: var(--text-secondary); display: grid; place-items: center; flex: 0 0 30px; cursor: pointer; }
.session-menu-btn:hover { color: var(--text-primary); background: rgba(127,127,127,.12); }
.session-item.dragging { opacity: .45; }
.session-item.touch-dragging { opacity: .55; outline: 2px solid var(--accent-color, #5f8dee); outline-offset: -2px; }
.pinned-sessions .session-item { touch-action: pan-y; }
.session-context-menu {
  position: fixed;
  z-index: 1200;
  width: max-content;
  min-width: 148px;
  max-width: min(220px, calc(100vw - 16px));
  max-height: min(320px, calc(100vh - 16px));
  overflow-y: auto;
  padding: 4px;
  border-radius: 8px;
  background: var(--bg-primary);
  box-shadow: 0 10px 28px rgba(0,0,0,.24);
  opacity: 0;
  transform: translateY(6px) scale(0.96);
  transform-origin: var(--session-menu-origin, top right);
  pointer-events: none;
  transition: opacity var(--menu-motion-duration) var(--menu-motion-easing), transform var(--menu-motion-duration) var(--menu-motion-easing);
}

.session-context-menu.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}
.session-context-menu button { width: 100%; padding: 9px 10px; border: 0; border-radius: 5px; text-align: left; white-space: nowrap; background: transparent; color: var(--text-primary); font: inherit; font-size: 13px; }
.session-context-menu button:hover { background: rgba(127,127,127,.13); }
.session-context-menu .danger { color: #d45252; }
.conversation-folder-item { margin: 2px 0; }
.conversation-folder-row { width: calc(100% - 34px); min-height: 32px; padding: 0 8px; border: 0; background: transparent; color: var(--text-primary); display: inline-flex; justify-content: space-between; align-items: center; text-align: left; font: inherit; }
.conversation-folder-row small { color: var(--text-secondary); }
.conversation-folder-menu { width: 30px; height: 30px; border: 0; background: transparent; color: var(--text-secondary); vertical-align: middle; }
.conversation-folder-sessions {
  padding-left: 10px;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height var(--menu-motion-duration) var(--menu-motion-easing), opacity var(--menu-motion-duration) var(--menu-motion-easing);
}

.conversation-folder-sessions.expanded {
  opacity: 1;
}
.conversation-folder-sessions .session-item { font-size: 12px; }
.session-folder-overlay { position: fixed; z-index: 1300; inset: 0; background: rgba(0,0,0,.68); display: grid; place-items: center; padding: 18px; animation: fadeIn .18s ease-out; }
.session-folder-card { width: min(380px, 100%); max-height: min(540px, calc(100dvh - 36px)); display: flex; flex-direction: column; gap: 14px; padding: 22px; border: 0; border-radius: var(--radius-lg); color: var(--text-primary); background: var(--bg-secondary); box-shadow: var(--floating-menu-shadow); animation: slideUp .24s cubic-bezier(.16,1,.3,1); }
.session-folder-heading { font-size: 19px; line-height: 1.25; font-weight: 700; }
.session-folder-name,
.session-folder-search { width: 100%; min-width: 0; height: 42px; padding: 0 12px; border: 1px solid var(--border-color); border-radius: var(--radius-md); outline: none; color: var(--text-primary); background: var(--input-bg); font: inherit; font-size: 14px; transition: border-color .18s, box-shadow .18s; }
.session-folder-name:focus,
.session-folder-search:focus { border-color: var(--focus-border-color); box-shadow: 0 0 0 2px var(--focus-ring-color); }
.session-folder-name[aria-invalid="true"] { border-color: var(--error-color); box-shadow: 0 0 0 2px color-mix(in srgb, var(--error-color) 20%, transparent); }
.session-folder-error { margin-top: -6px; color: var(--error-color); font-size: 12px; line-height: 1.45; }
.session-folder-actions .danger { margin-right: auto; color: #d45252; }
.session-folder-options { overflow: auto; display: grid; gap: 6px; min-height: 0; }
.session-folder-options label { display: flex; gap: 10px; align-items: center; min-height: 42px; padding: 0 10px; border-radius: var(--radius-md); cursor: pointer; transition: background .18s; }
.session-folder-options label:hover { background: var(--bg-tertiary); }
.session-folder-options input[type="checkbox"] { width: 18px; height: 18px; margin: 0; accent-color: var(--color-saturn-yellow); }
.session-folder-empty { display: grid; justify-items: start; gap: 6px; padding: 16px; border-radius: var(--radius-md); background: var(--bg-tertiary); }
.session-folder-empty-title { font-size: 14px; font-weight: 650; }
.session-folder-empty-text { color: var(--text-secondary); font-size: 13px; line-height: 1.5; }
.session-folder-create { display: inline-flex; align-items: center; gap: 6px; margin-top: 6px; }
.session-folder-actions { display: flex; justify-content: flex-end; gap: 8px; padding-top: 2px; }
.session-folder-actions button,
.session-folder-create { min-width: 72px; min-height: 38px; padding: 0 14px; border: 0; border-radius: var(--radius-md); color: var(--text-primary); background: var(--bg-tertiary); font: inherit; font-size: 13px; font-weight: 600; cursor: pointer; transition: background .18s, color .18s, transform .18s; }
.session-folder-actions button:hover,
.session-folder-create:hover { background: var(--bg-hover); }
.session-folder-actions button.primary { color: var(--bg-primary); background: var(--text-primary); }
.session-folder-actions button.primary:hover { background: var(--accent-hover); }
.model-menu-section-label { padding: 8px 12px 4px; color: var(--text-secondary); font-size: 12px; font-weight: 600; }

.session-group-header {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-tertiary);
  padding: var(--spacing-sm) var(--spacing-md);
  padding-top: var(--spacing-md);
  user-select: none;
  letter-spacing: 0.02em;
}

.session-group-header:first-child {
  padding-top: 0;
}

.session-time {
  position: static;
  flex: 0 0 48px;
  width: 48px;
  margin-left: 8px;
  font-size: 11px;
  color: var(--text-tertiary);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.session-item.has-time .session-title {
  padding-right: 0;
}

.session-item {
  display: flex;
  align-items: center;
  min-height: 40px;
  padding: 5px 6px 5px var(--spacing-md);
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}

.session-item:hover {
  background: var(--bg-tertiary);
}

.session-item.active {
  background: var(--bg-tertiary);
}

.session-title {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.session-title-wrap {
  display: flex;
  align-items: center;
  flex: 1 1 auto;
  min-width: 0;
  gap: 5px;
}

.session-title-wrap .session-title {
  min-width: 0;
}

.session-canvas-marker {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  color: var(--text-tertiary);
}

.session-preview {
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.session-delete-btn {
  position: absolute;
  top: 50%;
  right: var(--spacing-sm);
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  padding: 0;
  background: transparent;
  color: var(--text-tertiary);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 18px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
}

.session-delete-btn:hover {
  background: var(--error-color);
  color: white;
  opacity: 1;
}

/* 侧边栏对话附件预览 */
.session-attachments {
  display: flex;
  gap: 4px;
  margin-top: 4px;
  flex-wrap: nowrap;
  overflow: hidden;
}

.session-attachment-preview {
  width: 24px;
  height: 24px;
  border-radius: 4px;
  overflow: hidden;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  font-size: 12px;
}

.session-attachment-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.session-attachment-preview .attachment-icon {
  font-size: 12px;
  color: var(--text-secondary);
}

.session-attachment-preview.video-preview {
  position: relative;
  color: var(--text-secondary);
}

.session-attachment-preview.audio-preview {
  color: var(--text-secondary);
}

/* 会话列表加载指示器 */
.sessions-loader {
  display: flex;
  justify-content: center;
  padding: 12px;
}

.loader-spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-top-color: var(--accent-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* 固定底部区域 */
.sidebar-footer-fixed {
  padding: var(--spacing-lg);
  border-top: none;
  flex-shrink: 0;
}

.user-section {
  display: flex;
  align-items: center;
  padding: 12px;
  background: var(--bg-tertiary);
  border-radius: 16px;
  gap: 12px;
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 14px;
  flex-shrink: 0;
}

.user-avatar.has-image,
.message.user .message-avatar.has-image,
.settings-sidebar-avatar.has-image,
.settings-mobile-avatar.has-image,
.settings-avatar-preview.has-image {
  background-size: cover;
  background-position: center;
  color: transparent;
}

.user-info-group {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
}

.user-info-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin-bottom: 2px;
}

.user-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-actions {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.user-email {
  font-size: 11px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.settings-btn-inline {
  width: 24px;
  height: 24px;
  padding: 0;
  background: transparent;
  color: var(--text-secondary);
  border: none;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.notification-btn-inline {
  position: relative;
}

.notification-unread-dot {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 8px;
  height: 8px;
  border: 1px solid var(--bg-tertiary);
  border-radius: 999px;
  background: var(--error-color, #ef4444);
  z-index: 1;
  opacity: 0;
  transform: scale(0.7);
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.notification-btn-inline.has-unread .notification-unread-dot {
  opacity: 1;
  transform: scale(1);
}

.settings-btn-inline:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.settings-btn-inline .material-symbols-outlined {
  font-size: 18px;
}

.settings-inline-icon {
  width: 18px;
  height: 18px;
  display: block;
  opacity: 0.78;
}

[data-theme="light"] .settings-inline-icon,
[data-theme="light"] .settings-close-icon,
[data-theme="light"] .settings-nav-icon {
  filter: brightness(0) saturate(100%);
}

.sidebar-actions {
  display: flex;
  gap: var(--spacing-sm);
}

.sidebar-action-btn {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-tertiary);
  border: none;
  /* border-radius: var(--radius-sm); removed for specific corners */
  font-size: 12px;
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
}

.sidebar-action-btn:hover {
  background: var(--bg-hover);
}

.sidebar-actions .sidebar-action-btn:first-child {
  border-radius: 10px 10px 10px 20px;
  /* 设置按钮 左下角为30dp 其他14dp */
}

.sidebar-actions .sidebar-action-btn:last-child {
  border-radius: 10px 10px 20px 10px;
  /* 退出按钮 右下是30dp 其他14dp */
}

/* ==================== 主内容区 ==================== */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: transparent;
  /* 改为透明 */
  position: relative;
  overflow: hidden;
  height: 100%;
  /* 确保高度 */
  min-width: 0;
  max-width: 100%;
  /* 修复Flex子项溢出问题 */
  z-index: 2;
  /* 确保在canvas之上 */
}

.file-library-page {
  position: absolute;
  inset: 0;
  z-index: 30;
  overflow-y: auto;
  background: var(--bg-primary);
  color: var(--text-primary);
}

.file-library-page[hidden] {
  display: none;
}

.file-library-shell {
  width: min(1120px, 100%);
  min-height: 100%;
  margin: 0 auto;
  padding: 42px clamp(20px, 4vw, 56px) 64px;
}

.file-library-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.file-library-header h1 {
  font-size: 28px;
  line-height: 1.15;
  font-weight: 650;
  letter-spacing: 0;
}

.file-library-header p {
  margin-top: 6px;
  color: var(--text-secondary);
  font-size: 14px;
}

.file-library-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.file-library-upload,
.file-library-close,
.file-library-action,
.file-library-load-more {
  border: none;
  font: inherit;
  cursor: pointer;
}

.file-library-upload {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 0 14px;
  border-radius: 6px;
  background: var(--text-primary);
  color: var(--bg-primary);
  font-size: 14px;
  font-weight: 600;
}

.file-library-close {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  background: transparent;
  color: var(--text-secondary);
}

.file-library-close:hover,
.file-library-action:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.file-library-storage {
  margin-top: 30px;
  padding: 18px 0 22px;
  border-bottom: 1px solid var(--border-color);
}

.file-library-storage-copy {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 10px;
  font-size: 13px;
  color: var(--text-secondary);
}

.file-library-storage-copy strong {
  color: var(--text-primary);
  font-weight: 550;
}

.file-library-storage-track {
  width: 100%;
  height: 5px;
  overflow: hidden;
  border-radius: 3px;
  background: var(--bg-tertiary);
}

.file-library-storage-track span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--color-saturn-yellow);
  transition: width 0.25s ease;
}

.file-library-toolbar {
  display: flex;
  align-items: center;
  margin: 22px 0 18px;
}

.file-library-search {
  width: min(360px, 100%);
  min-height: 40px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--input-bg);
  color: var(--text-tertiary);
}

.file-library-search:focus-within {
  border-color: var(--focus-border-color);
}

.file-library-search input {
  width: 100%;
  min-width: 0;
  border: none;
  outline: none;
  background: transparent;
  color: var(--text-primary);
  font: inherit;
  font-size: 14px;
}

.file-library-status {
  padding: 10px 0;
  color: var(--text-secondary);
  font-size: 13px;
}

.file-library-status.error {
  color: var(--error-color);
}

.file-library-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}

.file-library-item {
  min-width: 0;
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  grid-template-rows: auto auto;
  gap: 8px 12px;
  padding: 12px;
  border-radius: 8px;
  background: var(--bg-secondary);
}

.file-library-thumbnail {
  grid-row: 1 / span 2;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 6px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}

.file-library-thumbnail img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  cursor: zoom-in;
}

.file-library-thumbnail.failed::after {
  content: '';
  width: 22px;
  height: 22px;
  background: currentColor;
  opacity: 0.35;
  clip-path: polygon(0 100%, 0 0, 100% 0, 100% 100%, 70% 58%, 54% 75%, 38% 56%);
}

.file-library-thumbnail.failed img {
  display: none;
}

.file-library-item-copy {
  min-width: 0;
  align-self: center;
}

.file-library-item-copy strong,
.file-library-item-copy span {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-library-item-copy strong {
  font-size: 14px;
  font-weight: 550;
}

.file-library-item-copy span {
  margin-top: 4px;
  color: var(--text-tertiary);
  font-size: 12px;
}

.file-library-item-actions {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 3px;
}

.file-library-action {
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  background: transparent;
  color: var(--text-tertiary);
}

.file-library-action.delete:hover {
  color: var(--error-color);
}

.file-library-empty {
  grid-column: 1 / -1;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--text-tertiary);
}

.file-library-empty strong {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
}

.file-library-load-more {
  min-height: 38px;
  display: block;
  margin: 24px auto 0;
  padding: 0 16px;
  border-radius: 6px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.file-library-load-more[hidden] {
  display: none;
}

@media (max-width: 768px) {
  .file-library-shell {
    padding: calc(var(--header-height) + 22px) 14px 36px;
  }

  .file-library-header h1 {
    font-size: 24px;
  }

  .file-library-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .file-library-upload {
    padding: 0 11px;
  }
}

.chat-container {
  flex: 1;
  align-self: stretch;
  width: 100%;
  max-width: none;
  margin: 0;
  box-sizing: border-box;
  overflow-y: auto;
  overflow-x: hidden;
  padding: var(--spacing-md);
  padding-bottom: var(--chat-content-bottom-clearance);
  display: flex;
  flex-direction: column;
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
  scroll-padding-bottom: var(--chat-content-bottom-clearance);
}

.chat-container::-webkit-scrollbar {
  width: 6px;
}

.chat-container::-webkit-scrollbar-track {
  background: transparent;
}

.chat-container::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

/* ==================== 边缘羽化效果 (Feathering / Gradient Mask) ==================== */
/* 对话区域边缘羽化 - 使用 main-content 叠加伪元素 */
.main-content::before,
.main-content::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  height: 50px;
  /* 对话区颜色渐变高度 */
  pointer-events: none;
  z-index: 10;
}

/* 顶部羽化 - 颜色渐变层 */
.main-content::before {
  top: 0;
  background: linear-gradient(to bottom,
      var(--bg-primary) 0%,
      rgba(13, 13, 13, 0.8) 30%,
      rgba(13, 13, 13, 0.4) 60%,
      transparent 100%);
}

/* 底部羽化 - 颜色渐变层 (仅在输入框上方一点) */
.main-content::after {
  bottom: 0;
  background: linear-gradient(to top,
      var(--bg-primary) 0%,
      rgba(13, 13, 13, 0.8) 30%,
      rgba(13, 13, 13, 0.4) 60%,
      transparent 100%);
}

/* 渐变层过渡 + 滚动到边界时隐藏，避免遮挡文字 */
.main-content::before,
.main-content::after,
.main-content .chat-edge-blur-top,
.main-content .chat-edge-blur-bottom {
  transition: opacity 0.25s ease;
}

.main-content.at-top::before,
.main-content.at-top .chat-edge-blur-top {
  opacity: 0;
}

.main-content.at-bottom::after,
.main-content.at-bottom .chat-edge-blur-bottom {
  opacity: 0;
}

/* 浅色主题的边缘羽化 */
[data-theme="light"] .main-content::before {
  background: linear-gradient(to bottom,
      var(--bg-primary) 0%,
      rgba(255, 255, 255, 0.8) 30%,
      rgba(255, 255, 255, 0.4) 60%,
      transparent 100%);
}

[data-theme="light"] .main-content::after {
  background: linear-gradient(to top,
      var(--bg-primary) 0%,
      rgba(255, 255, 255, 0.8) 30%,
      rgba(255, 255, 255, 0.4) 60%,
      transparent 100%);
}

/* 对话区域边缘模糊层 - 叠加在颜色渐变之上 */
.chat-edge-blur-top,
.chat-edge-blur-bottom {
  position: absolute;
  left: 0;
  right: 0;
  height: 40px;
  /* 对话区模糊层高度 */
  pointer-events: none;
  z-index: 11;
  backdrop-filter: blur(20px);
  /* 模糊强度增加5倍 */
  -webkit-backdrop-filter: blur(20px);
}

.chat-edge-blur-top {
  top: 0;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.5) 50%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.5) 50%, transparent 100%);
}

.chat-edge-blur-bottom {
  bottom: 0;
  mask-image: linear-gradient(to top, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.5) 50%, transparent 100%);
  -webkit-mask-image: linear-gradient(to top, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.5) 50%, transparent 100%);
}

body.keyboard-open .main-content::after,
body.keyboard-open .chat-edge-blur-bottom {
  opacity: 0.35;
}

.welcome-screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  padding: var(--spacing-xl);
  position: relative;
  /* 确保z-index生效 */
  z-index: 10;
  /* 提升层级 */
  opacity: 1;
  /* 强制不透明 */
  visibility: visible;
  /* 强制可见 */
}

.welcome-icon {
  width: 96px;
  height: 96px;
  margin-bottom: var(--spacing-xl);
  animation: float 3s ease-in-out infinite;
  filter: drop-shadow(0 4px 12px rgba(245, 213, 71, 0.3));
  display: flex;
  align-items: center;
  justify-content: center;
}

.welcome-icon svg {
  width: 100%;
  height: 100%;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-8px);
  }
}

.welcome-title {
  font-size: 32px;
  font-weight: 700;
  /* 暗色模式：白色文字 + 从左到右的金属光泽闪过 */
  background:
    linear-gradient(90deg,
      transparent 0%,
      rgba(30, 30, 30, 0.9) 10%,
      rgba(60, 60, 60, 0.85) 20%,
      rgba(80, 80, 80, 0.7) 30%,
      rgba(120, 120, 120, 0.5) 40%,
      transparent 50%,
      transparent 100%),
    linear-gradient(90deg, #FFFFFF, #FFFFFF);
  background-size: 250% 100%, 100% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0;
  letter-spacing: -0.5px;
  animation: metalShine 3s linear infinite;
  position: relative;
}

/* 金属光泽闪过动画 - 从左到右，完美循环 */
@keyframes metalShine {
  0% {
    background-position: 200% 0, 0 0;
  }

  100% {
    background-position: -100% 0, 0 0;
  }
}

.welcome-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-xl);
}

.welcome-actions {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  width: 100%;
  max-width: 560px;
  margin-top: 28px;
}

.action-card {
  background: color-mix(in srgb, var(--bg-secondary) 94%, var(--text-primary) 2%);
  border: 0;
  border-radius: 8px;
  color: var(--text-secondary);
  padding: 0 14px;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  font: inherit;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 8px;
  aspect-ratio: auto;
  min-width: 0;
  min-height: 54px;
  position: relative;
  overflow: hidden;
}

.action-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0) 100%);
  opacity: 0;
  transition: opacity 0.3s;
}

.action-card:hover::before {
  opacity: 1;
}

.action-card:hover {
  color: var(--text-primary);
  transform: translateY(-1px);
  border: 0;
  background: var(--bg-tertiary);
  box-shadow: none;
}

.action-card:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(255, 193, 7, 0.2);
}

.action-card-icon {
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  color: currentColor;
}

.action-card-title {
  font-size: 14px;
  font-weight: 700;
  color: currentColor;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

[data-theme="light"] .welcome-icon {
  background: linear-gradient(135deg, #404040 0%, #808080 50%, #D0D0D0 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme="light"] .welcome-title {
  /* 浅色模式：黑色文字 + 从左到右的白灰金属光泽闪过 */
  background:
    linear-gradient(90deg,
      transparent 0%,
      rgba(255, 255, 255, 0.95) 10%,
      rgba(230, 230, 230, 0.9) 20%,
      rgba(200, 200, 200, 0.8) 30%,
      rgba(170, 170, 170, 0.6) 40%,
      transparent 50%,
      transparent 100%),
    linear-gradient(90deg, #1a1a1a, #1a1a1a);
  background-size: 250% 100%, 100% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: metalShine 3s linear infinite;
}

[data-theme="light"] .action-card-icon {
  background: none;
  -webkit-background-clip: initial;
  background-clip: initial;
  -webkit-text-fill-color: currentColor;
}

.messages-list {
  flex: 0 0 auto;
  max-width: 800px;
  margin: 0 auto;
  width: 100%;
  min-width: 0;
  padding-top: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  overflow: visible;
  /* 横向裁剪由全宽 chat-container 统一负责，避免这里形成第二个纵向滚动容器。 */
  overflow-wrap: break-word;
  scroll-margin-bottom: var(--chat-content-bottom-clearance);
}

.message {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
  width: 100%;
  max-width: 100%;
  min-width: 0;
  scroll-margin-top: 24px;
  scroll-margin-bottom: var(--chat-content-bottom-clearance);
}

.message.message-entering {
  animation: messageSlideIn 0.3s ease-out;
}

@media (prefers-reduced-motion: reduce) {
  .message.message-entering {
    animation: none;
  }

  /* 统一 0.75s 非线性动画：系统减少动态时全部瞬间完成 */
  .chatflow-workspace,
  .chatflow-divider,
  .chat-panel,
  .session-context-menu,
  .conversation-folder-sessions,
  .sidebar-group-content,
  .group-toggle-icon {
    transition-duration: 0.01ms !important;
  }
}

/* 用户消息居右对齐 */
.message.user {
  flex-direction: row-reverse;
  justify-content: flex-start;
  margin-bottom: calc(var(--spacing-xl) * 1.5);
}

/* AI消息居左对齐，垂直布局 - 头像、竖线、正文垂直对齐 */
.message.assistant {
  flex-direction: column;
  /* 垂直布局 */
  align-items: flex-start;
  margin-bottom: calc(var(--spacing-xl) * 2);
  position: relative;
  gap: var(--spacing-sm);
  width: 100%;
  max-width: 100%;
  min-width: 0;
  /* 缩小间距 */
}

@keyframes messageSlideIn {
  from {
    opacity: 0;
    transform: translateY(4px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.message-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.message.user .message-avatar {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 14px;
}

.message.assistant .message-avatar {
  display: flex;
  position: relative;
}

/* AI消息垂直引导线 - 只在展开时显示，灰色，位置在头像正下方 */
.message.assistant .message-avatar::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 100%;
  transform: translateX(-50%);
  width: 2px;
  height: var(--thinking-line-height, 0);
  background: var(--text-tertiary);
  opacity: 0;
  pointer-events: none;
  transition: height 0.3s ease, opacity 0.3s ease;
}

/* 展开时显示垂直线 */
.message.assistant:has(.thinking-content.expanded) .message-avatar::after {
  opacity: 0.3;
}

.message-content {
  flex: 1;
  min-width: 0;
  max-width: 100%;
}

/* 用户消息内容居右 */
.message.user .message-content {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.message-text {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-lg);
  line-height: 1.7;
  word-wrap: break-word;
  overflow-wrap: break-word;
  word-break: break-word;
  /* 处理长 URL 和连续字符 */
  hyphens: auto;
  /* 自动连字符换行 */
  -webkit-hyphens: auto;
  font-size: 14px;
  max-width: 100%;
  /* 确保不溢出容器 */
  min-width: 0;
  /* 防止 flex 子元素溢出 */
  overflow-x: hidden;
}

.message.user .message-text {
  background: var(--bg-secondary);
  color: var(--text-primary);
  max-width: 100%;
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  word-break: break-word;
  overflow-wrap: break-word;
}

/* 主界面消息附件预览 */
.message-attachments {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
  max-width: 100%;
}

.message-attachment-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
}

.message-attachment-item.image-attachment {
  position: relative;
  max-width: 200px;
}

.message-attachment-item.image-attachment img {
  width: 100%;
  height: 100%;
  max-width: 200px;
  max-height: 200px;
  object-fit: cover;
  display: block;
  cursor: pointer;
  transition: transform 0.2s;
}

.message-attachment-item.image-attachment img:hover {
  transform: scale(1.02);
}

.message-attachment-item.media-attachment {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  min-width: 120px;
}

.message-attachment-item .media-icon {
  font-size: 24px;
}

.message-attachment-item .media-info {
  flex: 1;
  min-width: 0;
}

.message-attachment-item .media-type {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}

.message-attachment-item .media-name {
  font-size: 11px;
  color: var(--text-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 120px;
}

.attachment-download-btn {
  margin-top: 5px;
  padding: 3px 8px;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  background: var(--settings-card-bg, var(--bg-secondary));
  color: var(--text-secondary);
  font-size: 11px;
  line-height: 1.2;
  cursor: pointer;
}

.attachment-preview-btn {
  padding: 3px 8px;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  background: var(--settings-card-bg, var(--bg-secondary));
  color: var(--text-secondary);
  font-size: 11px;
  line-height: 1.2;
  cursor: pointer;
}

.attachment-image-actions,
.attachment-file-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.attachment-image-actions {
  padding: 7px 8px 8px;
}

.attachment-image-actions .attachment-download-btn,
.attachment-file-actions .attachment-download-btn {
  margin-top: 0;
}

.attachment-file-actions {
  margin-top: 6px;
}

.private-file-preview-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.72);
}

.private-file-preview {
  display: flex;
  flex-direction: column;
  width: min(960px, 100%);
  max-height: min(86vh, 900px);
  overflow: hidden;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--bg-primary);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
}

.private-file-preview-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 48px;
  padding: 8px 10px 8px 16px;
  border-bottom: 1px solid var(--border-color);
}

.private-file-preview-head strong {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 14px;
}

.private-file-preview-close {
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
}

.private-file-preview-close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.private-file-preview-body {
  min-height: 180px;
  overflow: auto;
  padding: 16px;
  text-align: center;
}

.private-file-preview-media {
  display: block;
  width: auto;
  max-width: 100%;
  max-height: calc(86vh - 96px);
  margin: 0 auto;
}

audio.private-file-preview-media,
video.private-file-preview-media {
  width: min(800px, 100%);
}

.private-file-preview-text {
  margin: 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  text-align: left;
  color: var(--text-primary);
  font: 13px/1.65 'Monaco', 'Consolas', monospace;
}

.attachment-download-btn:hover {
  color: var(--text-primary);
  border-color: var(--text-tertiary);
}

.message.assistant .message-text {
  background: transparent;
  color: var(--text-primary);
  padding: 0;
  padding-left: 18px;
  /* 与头像中心/竖线对齐 (头像36px / 2 = 18px) */
}

.previous-reply-toggle {
  width: calc(100% - 18px);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  margin: 2px 0 8px 18px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
  text-align: left;
  font-size: 13px;
}

.previous-reply-toggle:hover {
  background: var(--bg-hover);
}

.previous-reply-hint {
  min-width: 0;
  color: var(--text-secondary);
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.previous-reply-toggle .toggle-icon {
  color: var(--text-secondary);
  transition: transform 0.2s ease;
}

.message.regenerated-previous-message:not(.expanded) .thinking-timeline,
.message.regenerated-previous-message:not(.expanded) .message-text,
.message.regenerated-previous-message:not(.expanded) .sources-list,
.message.regenerated-previous-message:not(.expanded) .ask-user-card {
  display: none;
}

.message.regenerated-previous-message.expanded .previous-reply-toggle .toggle-icon {
  transform: rotate(180deg);
}

.message.regenerated-previous-message:not(.expanded) .message-meta {
  margin-top: 4px;
  opacity: 0.86;
}

.ask-user-card {
  width: min(560px, 100%);
  margin: 12px 0 4px 18px;
  padding: 16px;
  border: none;
  border-radius: 16px;
  background: var(--bg-secondary);
  box-shadow: none;
}

.ask-user-card.multi-question {
  max-height: min(70vh, 680px);
  overflow-y: auto;
}

.ask-user-intro {
  margin-bottom: 10px;
  color: var(--text-primary);
  font-size: 0.98rem;
  font-weight: 760;
  line-height: 1.45;
}

.ask-user-question-block + .ask-user-question-block {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid color-mix(in srgb, var(--text-primary) 8%, transparent);
}

.ask-user-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 12px;
}

.ask-user-nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 50%;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  cursor: pointer;
  transition: background 0.16s ease, color 0.16s ease;
}

.ask-user-nav-btn:hover:not(:disabled) {
  background: color-mix(in srgb, var(--text-primary) 10%, var(--bg-tertiary));
  color: var(--text-primary);
}

.ask-user-nav-btn:disabled {
  opacity: 0.35;
  cursor: default;
}

.ask-user-nav-progress {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
  min-width: 48px;
  text-align: center;
}

.ask-user-question-container {
  position: relative;
}

.ask-user-question-container.ask-user-fade-in {
  animation: ask-user-fade-in 0.22s ease;
}

@keyframes ask-user-fade-in {
  from { opacity: 0; transform: translateX(8px); }
  to { opacity: 1; transform: translateX(0); }
}

.ask-user-question {
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 720;
  line-height: 1.45;
  margin-bottom: 10px;
}

.ask-user-options {
  display: grid;
  gap: 7px;
}

.ask-user-option {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  min-height: 42px;
  padding: 9px 12px;
  border: none;
  border-radius: 12px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
  transition: background 0.16s ease, transform 0.16s ease;
}

.ask-user-option:hover {
  background: color-mix(in srgb, var(--text-primary) 8%, var(--bg-tertiary));
}

.ask-user-option.selected {
  background: color-mix(in srgb, var(--text-primary) 12%, var(--bg-tertiary));
}

.ask-user-option:active {
  transform: scale(0.99);
}

.ask-user-option-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 22px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--text-primary) 11%, var(--bg-tertiary));
  color: var(--text-primary);
  font-size: 0.76rem;
  font-weight: 760;
}

.ask-user-option.selected .ask-user-option-number {
  background: var(--text-primary);
  color: var(--bg-primary);
}

.ask-user-option-label {
  min-width: 0;
  overflow-wrap: anywhere;
  font-size: 0.88rem;
  line-height: 1.35;
}

.ask-user-custom {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding: 8px 8px 8px 12px;
  border: none;
  border-radius: 12px;
  background: var(--bg-tertiary);
}

.ask-user-input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text-primary);
  font: inherit;
  font-size: 0.88rem;
}

.ask-user-input::placeholder {
  color: var(--text-tertiary);
}

.ask-user-check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 30px;
  width: 30px;
  height: 30px;
  border: 0;
  border-radius: 50%;
  background: var(--text-primary);
  color: var(--bg-primary);
  cursor: pointer;
  transition: transform 0.12s ease;
}

.ask-user-check:active {
  transform: scale(0.92);
}

.ask-user-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 30px;
  width: 30px;
  height: 30px;
  border: 0;
  border-radius: 50%;
  background: var(--text-primary);
  color: var(--bg-primary);
  cursor: pointer;
}

.ask-user-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 12px;
  padding-top: 0;
  border-top: 0;
}

.ask-user-progress {
  color: var(--text-tertiary);
  font-size: 0.8rem;
}

.ask-user-send-all {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 14px;
  border: 0;
  border-radius: 999px;
  background: var(--text-primary);
  color: var(--bg-primary);
  font-size: 0.86rem;
  font-weight: 760;
  cursor: pointer;
}

.ask-user-send-all:disabled {
  background: var(--bg-tertiary);
  color: var(--text-tertiary);
  cursor: not-allowed;
}

.ask-user-card.answered {
  opacity: 0.76;
}

.ask-user-card.answered button,
.ask-user-card.answered input {
  cursor: default;
}

.ask-user-answered-summary {
  padding: 8px 0;
  border-bottom: 1px solid color-mix(in srgb, var(--text-primary) 6%, transparent);
}

.ask-user-answered-summary:last-of-type {
  border-bottom: none;
}

.ask-user-answered-q {
  font-size: 0.82rem;
  color: var(--text-tertiary);
  margin-bottom: 3px;
}

.ask-user-answered-a {
  font-size: 0.88rem;
  color: var(--text-primary);
  font-weight: 500;
}

.ask-user-status {
  margin-top: 10px;
  color: var(--text-secondary);
  font-size: 0.82rem;
  white-space: pre-line;
}

.ask-user-question-status {
  margin-top: 8px;
  color: var(--text-secondary);
  font-size: 0.8rem;
}

/* 消息元信息和操作栏 */
.message-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
  font-size: 11px;
  color: var(--text-tertiary);
  padding-left: 18px;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
  overflow: hidden;
  /* 与消息文本左边距对齐 */
}

.meta-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  max-width: 100%;
  min-width: 0;
  padding: 2px 8px;
  background: var(--bg-tertiary);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 10px;
  font-weight: 500;
  color: var(--text-secondary);
  box-sizing: border-box;
}

.meta-badge[hidden] {
  display: none !important;
}

.meta-badge span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.meta-badge .material-symbols-outlined {
  font-size: 12px;
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 6px;
  width: 28px;
  height: 28px;
  background: var(--bg-tertiary);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 11px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  flex: 0 0 28px;
  box-sizing: border-box;
}

.copy-btn:hover {
  background: var(--bg-hover);
  color: var(--accent-color);
}

.copy-btn .material-symbols-outlined {
  font-size: 16px;
}

.copy-btn.copied {
  color: var(--accent-color);
}

/* ==================== 消息操作按钮样式 ==================== */
.message-actions {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-left: auto;
  flex-shrink: 0;
  max-width: 100%;
  min-width: 0;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 6px;
  background: var(--bg-tertiary);
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  flex: 0 0 28px;
  box-sizing: border-box;
}

.action-btn:hover {
  background: var(--bg-hover);
  color: var(--accent-color);
}

.action-btn.delete-btn:hover {
  color: #ef4444;
}

.feedback-btn.active,
.feedback-btn.active:hover {
  background: var(--text-primary);
  border-color: var(--text-primary);
  color: var(--bg-primary);
}

.action-btn .material-symbols-outlined {
  font-size: 16px;
}

/* 消息编辑区域 */
.feedback-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.54);
  backdrop-filter: blur(10px);
}

.feedback-modal-overlay.active {
  display: flex;
}

.feedback-modal {
  position: relative;
  width: min(440px, 100%);
  padding: 24px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 18px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  color: var(--text-primary);
  transform: translateY(8px) scale(0.98);
  animation: feedbackModalIn 220ms cubic-bezier(.22, 1, .36, 1) forwards;
}

@keyframes feedbackModalIn {
  to {
    transform: translateY(0) scale(1);
  }
}

.feedback-modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
  border-radius: 50%;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
}

.feedback-modal-icon {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  border-radius: 50%;
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.feedback-modal h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.feedback-modal-hint {
  margin: 0 0 14px;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.5;
}

.feedback-textarea {
  width: 100%;
  min-height: 120px;
  padding: 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  color: var(--text-primary);
  font: inherit;
  line-height: 1.5;
  resize: vertical;
  outline: none;
}

.feedback-textarea:focus {
  border-color: var(--text-primary);
}

.feedback-modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 16px;
}

.feedback-cancel-btn,
.feedback-submit-btn {
  min-height: 36px;
  padding: 0 14px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  cursor: pointer;
  font-weight: 600;
}

.feedback-cancel-btn {
  background: transparent;
  color: var(--text-secondary);
}

.feedback-submit-btn {
  background: var(--text-primary);
  border-color: var(--text-primary);
  color: var(--bg-primary);
}

.feedback-submit-btn:disabled {
  opacity: 0.6;
  cursor: wait;
}

.new-chat-mode-modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(0, 0, 0, 0.52);
  backdrop-filter: blur(16px);
}

.new-chat-mode-modal.active {
  display: flex;
}

.new-chat-mode-card {
  position: relative;
  width: min(460px, calc(100vw - 32px));
  border-radius: 18px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  box-shadow: var(--floating-menu-shadow);
  padding: 24px;
}

.new-chat-mode-card h3 {
  margin: 0 0 8px;
  font-size: 20px;
  line-height: 1.25;
}

.new-chat-mode-card p {
  margin: 0 0 18px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.55;
}

.new-chat-mode-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 50%;
  background: var(--bg-hover);
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.new-chat-mode-options {
  display: grid;
  gap: 10px;
}

.new-chat-mode-option {
  width: 100%;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background: var(--bg-primary);
  color: var(--text-primary);
  text-align: left;
  padding: 14px 16px;
  cursor: pointer;
}

.new-chat-mode-option:hover {
  border-color: var(--text-tertiary);
  background: var(--bg-hover);
}

.new-chat-mode-option span {
  display: block;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.3;
}

.new-chat-mode-option small {
  display: block;
  margin-top: 5px;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.45;
}

.temp-chat-choice-row {
  margin-top: 10px;
}

.message-edit-container {
  width: 100%;
  margin-top: 8px;
}

.message-edit-textarea {
  width: 100%;
  min-height: 80px;
  max-height: 300px;
  padding: 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
  line-height: 1.6;
  resize: vertical;
  outline: none;
}

.message-edit-textarea:focus {
  border-color: var(--focus-border-color);
}

.message-edit-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 8px;
}

.edit-cancel-btn,
.edit-save-btn {
  padding: 6px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}

.edit-cancel-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.edit-cancel-btn:hover {
  background: var(--bg-hover);
}

.edit-save-btn {
  background: var(--accent-color);
  border: none;
  color: white;
}

.edit-save-btn:hover {
  opacity: 0.9;
}

/* 重新生成弹窗 */
.regenerate-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
}

.regenerate-modal.active {
  opacity: 1;
  visibility: visible;
}

.regenerate-modal-content {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: 24px;
  width: 90%;
  max-width: 400px;
  box-shadow: var(--shadow-lg);
}

.regenerate-modal h3 {
  margin-bottom: 20px;
  font-size: 18px;
  color: var(--text-primary);
}

.regenerate-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
}

.regenerate-option:last-child {
  border-bottom: none;
}

.regenerate-option label {
  color: var(--text-primary);
  font-size: 14px;
}

.regenerate-option select {
  padding: 8px 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  min-width: 150px;
}

.regenerate-modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
}

.regenerate-cancel-btn,
.regenerate-confirm-btn {
  padding: 10px 24px;
  border-radius: var(--radius-md);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
}

.regenerate-cancel-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.regenerate-cancel-btn:hover {
  background: var(--bg-hover);
}

.regenerate-confirm-btn {
  background: var(--accent-color);
  border: none;
  color: white;
}

.regenerate-confirm-btn:hover {
  opacity: 0.9;
}

/* 用户消息底栏 */
.user-message-meta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  margin-top: 8px;
  gap: 4px;
}

/* ==================== 引用来源样式 ==================== */


/* 行内角标样式 [1] [2] 等 */
.citation-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 20px;
  padding: 0 6px;
  margin: 0 2px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  vertical-align: middle;
}

.citation-badge:hover {
  background: var(--accent-color);
  color: var(--bg-primary);
  border-color: var(--accent-color);
  transform: translateY(-1px);
}

.citation-badge-alpha {
  border-color: rgba(255, 193, 7, 0.45);
  color: var(--color-saturn-yellow);
}

/* 来源列表容器 */
.sources-list {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
  padding-left: 18px;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  /* 与消息文本左边距对齐 */
}

.sources-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  width: 100%;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}

.sources-toggle-btn {
  margin-left: auto;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-secondary);
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 11px;
  line-height: 1.4;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.sources-toggle-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.sources-body {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.sources-group {
  width: 100%;
}

.sources-group+.sources-group {
  margin-top: var(--spacing-sm);
}

.sources-group-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-tertiary);
  margin-bottom: 8px;
}

.sources-list.is-collapsed .sources-body {
  display: none;
}

.sources-header .material-symbols-outlined {
  font-size: 16px;
}

.sources-header-icon {
  width: 16px;
  height: 16px;
  display: inline-block;
  flex: 0 0 16px;
  background: currentColor;
  -webkit-mask: url("icons/source-search.svg") center / contain no-repeat;
  mask: url("icons/source-search.svg") center / contain no-repeat;
  opacity: 0.85;
}

/* 来源卡片 */
.source-card {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s;
  width: min(100%, 280px);
  max-width: 100%;
  min-width: 0;
  text-decoration: none;
}

.source-card:hover {
  background: var(--bg-hover);
  border-color: var(--accent-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.source-card-finance {
  border-color: rgba(255, 193, 7, 0.25);
}

.source-index {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 20px;
  background: var(--accent-color);
  color: var(--bg-primary);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
}

.source-favicon {
  width: 16px;
  height: 16px;
  border-radius: 2px;
  flex-shrink: 0;
  object-fit: contain;
}

.source-favicon-placeholder {
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-hover);
  border-radius: 2px;
  font-size: 10px;
  color: var(--text-tertiary);
  flex-shrink: 0;
}

.source-info {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}

.source-title {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.source-domain {
  font-size: 10px;
  color: var(--text-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ==================== Mermaid 图表样式 ==================== */

/* ========== [高度/宽度限制] Mermaid 图表容器 ==========
       min-height: 400px 防止图表加载时的页面抖动
       max-width: 在 svg 上设置为 100%
       如需调整，修改下面的值
    */
.mermaid-container {
  margin: 16px 0;
  padding: 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  position: relative;
  min-height: 100px;
  /* [高度限制] 未渲染时的最小高度，可调整 */
  max-width: 800px;
  /* [宽度限制] 可调整此值 */
}

/* 渲染完成后移除最小高度限制 */
.mermaid-container.rendered {
  min-height: unset;
}

.mermaid-container svg {
  max-width: 100%;
  /* [宽度限制] SVG 最大宽度，可调整 */
  height: auto;
  display: block;
  margin: 0 auto;
}

/* 加载状态 */
.mermaid-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text-secondary);
  padding: 40px;
  font-size: 14px;
  animation: pulse 1.5s ease-in-out infinite;
}

.mermaid-loading-icon {
  animation: spin 1.5s linear infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.5;
  }
}

/* 错误状态 */
.mermaid-error {
  color: var(--error-color);
  padding: 16px;
  background: rgba(239, 68, 68, 0.1);
  border-radius: var(--radius-md);
  font-size: 14px;
}

.mermaid-error span {
  font-weight: 600;
  display: block;
  margin-bottom: 8px;
}

.mermaid-error pre {
  margin-top: 8px;
  padding: 12px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  font-size: 12px;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text-secondary);
}

.mermaid-error details {
  margin-top: 12px;
}

.mermaid-error summary {
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 12px;
  user-select: none;
}

.mermaid-error summary:hover {
  color: var(--text-primary);
}

/* 图表工具栏 */
.mermaid-toolbar {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  gap: 4px;
  opacity: 0;
  transition: opacity 0.2s;
  z-index: 10;
}

.mermaid-container:hover .mermaid-toolbar {
  opacity: 1;
}

.mermaid-toolbar button {
  width: 32px;
  height: 32px;
  padding: 0;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.mermaid-toolbar button:hover {
  background: var(--bg-hover);
  border-color: var(--text-tertiary);
  transform: scale(1.05);
}

/* 全屏模式 */
.mermaid-container.fullscreen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  margin: 0;
  border-radius: 0;
  z-index: 9999;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
}

.mermaid-container.fullscreen svg {
  max-width: 95%;
  max-height: 90vh;
}

.mermaid-container.fullscreen .mermaid-toolbar {
  opacity: 1;
  top: 20px;
  right: 20px;
}

/* 浅色主题适配 */
[data-theme="light"] .mermaid-container {
  background: #fafafa;
}

[data-theme="light"] .mermaid-error {
  background: rgba(239, 68, 68, 0.08);
}

[data-theme="light"] .mermaid-container.fullscreen {
  background: #ffffff;
}

/*  Mermaid 流式渲染过渡动画 */
.mermaid-container svg {
  animation: mermaidFadeIn 0.3s ease-out;
}

@keyframes mermaidFadeIn {
  from {
    opacity: 0;
    transform: scale(0.98);
  }

  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* 隐藏 loading 当渲染完成时 */
.mermaid-container.rendered .mermaid-loading {
  display: none;
}

/* 渲染中状态 */
.mermaid-container.rendering .mermaid-loading-icon {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

/* ==================== Markdown渲染样式 ==================== */
.message-text h1,
.message-text h2,
.message-text h3,
.message-text h4,
.message-text h5,
.message-text h6 {
  margin: 1em 0 0.5em 0;
  font-weight: 600;
  line-height: 1.3;
}

.message-text h1 {
  font-size: 1.8em;
}

.message-text h2 {
  font-size: 1.5em;
}

.message-text h3 {
  font-size: 1.3em;
}

.message-text h4 {
  font-size: 1.1em;
}

.message-text p {
  margin: 0.5em 0;
}

.message-text ul,
.message-text ol {
  margin: 0.5em 0;
  padding-left: 2em;
}

.message-text li {
  margin: 0.3em 0;
}

/* 列表项标记使用RAI主题色 */
.message-text ul li::marker {
  color: var(--color-saturn-yellow);
}

.message-text ol li::marker {
  color: var(--color-saturn-yellow);
  font-weight: 600;
}

.message-text a {
  color: var(--accent-color);
  text-decoration: underline;
}

.message-text blockquote {
  border-left: 3px solid var(--color-saturn-yellow);
  padding-left: 1em;
  margin: 1em 0;
  color: var(--text-secondary);
}

.message-text code {
  background: var(--bg-tertiary);
  padding: 2px 6px;
  border-radius: 3px;
  font-family: 'Monaco', 'Consolas', 'Courier New', monospace;
  font-size: 0.9em;
  word-break: break-word;
  /* 允许长代码换行 */
  white-space: pre-wrap;
  /* 保持格式但允许换行 */
}

/* 代码块容器 */
.code-block-wrapper {
  position: relative;
  margin: 1em 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: #1e1e1e;
}

/* 代码块头部 */
.code-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  font-size: 12px;
}

/* 语言标签 */
.code-block-lang {
  color: var(--color-saturn-yellow);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.5px;
}

/* 复制按钮 */
.code-copy-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  background: transparent;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 11px;
  cursor: pointer;
  transition: all 0.2s;
}

.code-copy-btn:hover {
  background: var(--bg-hover);
  border-color: var(--color-saturn-yellow);
  color: var(--color-saturn-yellow);
}

.code-copy-btn.copied {
  color: var(--success-color);
  border-color: var(--success-color);
}

.code-copy-btn svg {
  width: 14px;
  height: 14px;
}

/* 代码块内容 */
.message-text pre {
  background: #1e1e1e;
  padding: var(--spacing-md);
  overflow-x: auto;
  margin: 0;
  max-width: 100%;
  /* 确保不溢出 */
  white-space: pre;
  /* 保持代码格式 */
}

/* 无容器的pre（回退样式） */
.message-text>pre:not(.code-block-wrapper pre) {
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  margin: 0.8em 0;
}

.message-text pre code {
  background: none;
  padding: 0;
  border-radius: 0;
  font-size: 0.85em;
  font-family: 'Monaco', 'Consolas', 'Courier New', monospace;
  white-space: pre;
  display: block;
}

/* highlight.js 覆盖样式 */
.message-text pre code.hljs {
  background: transparent;
  padding: 0;
}

.message-text img {
  max-width: 100%;
  border-radius: var(--radius-md);
  margin: 0.8em 0;
}

/* ========== [高度/宽度限制] 流式图片加载容器 ==========
       min-height: 400px 防止图片加载时的页面抖动
       max-width: 100% 限制图片最大宽度
       如需调整，修改下面的值
    */
.streaming-image-container {
  position: relative;
  min-height: 400px;
  /* [高度限制] 可调整此值 */
  max-width: 800px;
  /* [宽度限制] 可调整此值 */
  border-radius: var(--radius-md);
  margin: 0.8em 0;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.streaming-image-skeleton {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg,
      var(--bg-tertiary) 0%,
      var(--bg-hover) 50%,
      var(--bg-tertiary) 100%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

.streaming-image-skeleton::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 32px;
  height: 32px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='32' height='32' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2'%3E%3Crect x='3' y='3' width='18' height='18' rx='2'/%3E%3Ccircle cx='8.5' cy='8.5' r='1.5'/%3E%3Cpath d='M21 15l-5-5L5 21'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  opacity: 0.5;
}

@keyframes skeleton-shimmer {
  0% {
    background-position: 200% 0;
  }

  100% {
    background-position: -200% 0;
  }
}

.streaming-image-container img {
  position: relative;
  z-index: 2;
  width: 100%;
  height: auto;
  display: block;
  opacity: 1;
  border-radius: var(--radius-md);
  margin: 0;
  /* 图片加载时直接显示，用户可以看到图片从上到下逐渐加载 */
  background: transparent;
}

/* 图片加载完成后隐藏骨架屏 */
.streaming-image-container.loaded .streaming-image-skeleton {
  display: none;
}

.streaming-image-container.loaded {
  min-height: unset;
  background: transparent;
}

.streaming-image-container.error {
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.generated-image-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 8px 0 2px;
}

.streaming-image-container .generated-image-actions {
  position: absolute;
  z-index: 4;
  right: 10px;
  bottom: 10px;
  margin: 0;
}

.generated-image-action {
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 0 10px;
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 6px;
  background: rgba(12, 12, 12, 0.76);
  color: #fff;
  cursor: pointer;
  backdrop-filter: blur(10px);
}

.generated-image-action:hover {
  background: rgba(12, 12, 12, 0.9);
}

.image-error {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 12px;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-sm);
  color: var(--error-color);
  font-size: 13px;
}

/* ==================== KaTeX 数学公式样式 ==================== */
.message-text .katex {
  font-size: 1.1em;
}

.message-text .katex-display {
  margin: 1em 0;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0.5em 0;
}

/* Keep the original LaTeX available to selection tools without changing KaTeX output. */
.rai-math-source-inline {
  display: inline;
}

.rai-math-source-block {
  display: block;
  max-width: 100%;
}

.message-text .katex-display>.katex {
  text-align: center;
}

.message-text .katex-html {
  white-space: normal;
}

/* 确保行内公式对齐 */
.message-text .katex-inline {
  display: inline;
  vertical-align: baseline;
}

/* ==================== 流式输出（禁用蹦字模糊动画） ==================== */
.streaming-char {
  display: inline;
  animation: none !important;
  filter: none !important;
  opacity: 1 !important;
}

#streamingContent {
  animation: none !important;
  filter: none !important;
}

/* 表格容器 - 支持水平滚动 */
.message-text .table-wrapper {
  display: block;
  width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  max-width: 100%;
  min-width: 0;
  margin: 1em 0;
  -webkit-overflow-scrolling: touch;
  /* 移动端平滑滚动 */
  border-radius: var(--radius-md);
}

.message-text table {
  border-collapse: separate;
  border-spacing: 0;
  width: 100%;
  min-width: 100%;
  max-width: 100%;
  margin: 0;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  table-layout: auto;
}

.message-text table th,
.message-text table td {
  border: 1px solid var(--border-color);
  border-top: none;
  border-left: none;
  padding: 0.5em 0.75em;
  text-align: left;
  vertical-align: top;
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: break-word;
}

/* 表格第一行单元格顶部边框 */
.message-text table tr:first-child th,
.message-text table tr:first-child td {
  border-top: none;
}

/* 表格每行第一个单元格左边框 */
.message-text table th:first-child,
.message-text table td:first-child {
  border-left: none;
}

/* 表格最后一列右边框 */
.message-text table th:last-child,
.message-text table td:last-child {
  border-right: none;
}

/* 表格最后一行底边框 */
.message-text table tr:last-child td {
  border-bottom: none;
}

.message-text table th {
  background: var(--bg-tertiary);
  font-weight: 600;
}

.message-text hr {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 1.5em 0;
}

/* 浅色主题Markdown样式 */
[data-theme="light"] .message-text code {
  background: #F3F4F6;
}

[data-theme="light"] .message-text pre {
  background: #F9FAFB;
  border-color: #E5E7EB;
}

[data-theme="light"] .message-text blockquote {
  border-left-color: var(--color-saturn-yellow);
}

[data-theme="light"] .message-text table {
  border-color: #E5E7EB;
}

[data-theme="light"] .message-text table th {
  background: #F3F4F6;
}

[data-theme="light"] .message-text table th,
[data-theme="light"] .message-text table td {
  border-color: #E5E7EB;
}



.rai-reasoning-block.mode-live .rai-reasoning-content {
  max-height: 150px;
  overflow-y: auto;
  scrollbar-width: thin;
}

.rai-reasoning-block.mode-expanded .rai-reasoning-content {
  max-height: 420px;
  overflow-y: auto;
  scrollbar-width: thin;
}

.rai-reasoning-modes {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}

.rai-reasoning-mode {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  padding: 0;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
  transition: color 0.2s ease, background 0.2s ease;
}

.rai-reasoning-mode:hover,
.rai-reasoning-mode.selected {
  background: color-mix(in srgb, var(--color-saturn-yellow) 12%, transparent);
  color: var(--color-saturn-yellow);
}

@media (prefers-reduced-motion: reduce) {
  .tool-trace-item,
  .tool-trace-detail,
  .rai-reasoning-mode {
    animation: none;
    transition: none;
  }
}



/* 时间轴容器 */
.thinking-timeline {
  position: relative;
  padding: var(--spacing-md) 0;
  padding-left: 24px;
  /* 为左侧时间轴线留出空间 */
  margin-bottom: var(--spacing-md);
}

/* 左侧垂直时间轴线 */
.thinking-timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: var(--border-color);
  border-radius: 1px;
}

/* 步骤项 - 带渐入动画 */
.thinking-step {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: var(--spacing-md);
  min-height: 28px;
  /* 渐入动画 */
  opacity: 0;
  transform: translateY(8px);
  animation: step-fade-in 1s ease forwards;
}

/* 步骤渐入动画 - 依次延迟显示 */
.thinking-step:nth-child(1) {
  animation-delay: 0s;
}

.thinking-step:nth-child(2) {
  animation-delay: 1.5s;
}

.thinking-step:nth-child(3) {
  animation-delay: 3s;
}

.thinking-step:nth-child(4) {
  animation-delay: 4.5s;
}

@keyframes step-fade-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 历史消息不需要动画 */
.message .thinking-step {
  animation: none;
  opacity: 1;
  transform: none;
}

.thinking-step:last-child {
  margin-bottom: 0;
}

/* 步骤节点圆点 */
.thinking-step-node {
  position: absolute;
  left: -20px;
  top: 4px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border-color);
  border: 2px solid var(--bg-primary);
  z-index: 2;
  transition: all 0.3s ease;
}

/* 节点状态：未开始 */
.thinking-step[data-status="pending"] .thinking-step-node {
  background: var(--border-color);
  opacity: 0.5;
}

/* 节点状态：进行中 - RAI主题色 + 呼吸灯 */
.thinking-step[data-status="active"] .thinking-step-node {
  background: var(--color-saturn-yellow);
  box-shadow: none;
  animation: node-pulse 1.5s ease-in-out infinite;
}

.thinking-step[data-status="running"] .thinking-step-node {
  background: var(--color-saturn-yellow);
  box-shadow: none;
  animation: node-pulse 1.5s ease-in-out infinite;
}

@keyframes node-pulse {

  0%,
  100% {
    opacity: 0.75;
  }

  50% {
    opacity: 1;
  }
}

/* 节点状态：已完成 */
.thinking-step[data-status="done"] .thinking-step-node {
  background: var(--text-tertiary);
  opacity: 1;
}

/* 节点状态：深度思考（特殊紫色） */
.thinking-step[data-status="thinking"] .thinking-step-node {
  background: #a855f7;
  box-shadow: none;
  animation: node-pulse-purple 1.5s ease-in-out infinite;
}

.thinking-step[data-status="failed"] .thinking-step-node {
  background: #ef4444;
  box-shadow: none;
}

@keyframes node-pulse-purple {

  0%,
  100% {
    opacity: 0.75;
  }

  50% {
    opacity: 1;
  }
}

/* 步骤内容区域 */
.thinking-step-content {
  flex: 1;
  min-width: 0;
}

/* 步骤标题 */
.thinking-step-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 2px;
}

.thinking-step[data-status="pending"] .thinking-step-title {
  color: var(--text-tertiary);
}

.thinking-step[data-status="active"] .thinking-step-title {
  color: var(--text-primary);
}

.thinking-step[data-status="running"] .thinking-step-title {
  color: var(--text-primary);
}

.thinking-step[data-status="failed"] .thinking-step-title {
  color: #fca5a5;
}

/* 步骤详情 */
.thinking-step-detail {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.thinking-step[data-status="pending"] .thinking-step-detail {
  color: var(--text-tertiary);
  opacity: 0.6;
}

.thinking-step[data-status="failed"] .thinking-step-detail {
  color: #fca5a5;
}

/* 工具调用轨迹：保持在既有时间线内，不使用悬浮卡片。 */
.tool-trace-panel {
  margin: 2px 0 var(--spacing-md);
  min-width: 0;
}

.tool-trace-heading {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.4;
}

.tool-trace-count {
  color: var(--text-tertiary);
  font-variant-numeric: tabular-nums;
}

.tool-trace-list {
  position: relative;
  margin-top: 7px;
  border-left: 2px solid var(--border-color);
  padding-left: 12px;
  max-height: 232px;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
}

.tool-trace-item {
  position: relative;
  margin: 0 0 7px;
  min-width: 0;
  color: var(--text-secondary);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.tool-trace-item::before {
  content: '';
  position: absolute;
  left: -17px;
  top: 5px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-tertiary);
  border: 2px solid var(--bg-primary);
}

.tool-trace-item.tool-trace-current::before {
  background: var(--color-saturn-yellow);
  animation: node-pulse 1.5s ease-in-out infinite;
}

.tool-trace-item[data-status="failed"]::before {
  background: #ef4444;
}

.tool-trace-summary {
  overflow: hidden;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.45;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tool-trace-detail {
  display: none;
  margin-top: 5px;
  max-height: 154px;
  overflow: auto;
  padding: 8px 10px;
  background: color-mix(in srgb, var(--bg-secondary) 78%, transparent);
  border-radius: 4px;
  color: var(--text-secondary);
  font-family: var(--font-mono, ui-monospace, SFMono-Regular, Menlo, monospace);
  font-size: 11px;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
}

.tool-trace-item.tool-trace-current .tool-trace-detail,
.tool-trace-item.tool-trace-expanded .tool-trace-detail {
  display: block;
  animation: tool-trace-reveal 0.2s ease-out;
}

.tool-trace-item.tool-trace-collapsed .tool-trace-detail {
  display: none;
}

@keyframes tool-trace-reveal {
  from { opacity: 0; transform: translateY(-3px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 过程轨迹折叠按钮 */
.process-trace-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(255, 193, 7, 0.12);
  border: 1px solid rgba(255, 193, 7, 0.25);
  border-radius: var(--radius-md);
  color: var(--color-saturn-yellow);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}

.process-trace-toggle:hover {
  background: rgba(255, 193, 7, 0.2);
  border-color: rgba(255, 193, 7, 0.45);
}

.process-trace-toggle .toggle-icon {
  transition: transform 0.3s ease;
  font-size: 14px;
}

.process-trace-toggle.expanded .toggle-icon {
  transform: rotate(180deg);
}

.process-trace-list {
  margin-top: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-sm) var(--spacing-md) var(--spacing-md);
  border-left: 2px solid rgba(255, 193, 7, 0.25);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: rgba(255, 193, 7, 0.04);
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: all 0.25s ease;
}

.process-trace-list.expanded {
  max-height: 360px;
  opacity: 1;
  overflow-y: auto;
  scroll-padding-top: var(--spacing-md);
  scroll-padding-bottom: var(--spacing-md);
}

.process-dot-item {
  position: relative;
  margin-bottom: 8px;
  padding-left: 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.45;
  white-space: pre-wrap;
  word-break: break-word;
}

.process-dot-item:last-child {
  margin-bottom: 0;
}

.process-dot-item::before {
  content: '';
  position: absolute;
  left: -7px;
  top: 7px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-tertiary);
}

.process-dot-item.framework::before {
  background: #22c55e;
}

.process-dot-item.agent::before {
  background: #38bdf8;
}

.process-dot-item.search::before {
  background: #f59e0b;
}

.process-dot-item.reasoning::before {
  background: #a855f7;
}

.process-dot-item.token::before {
  background: var(--color-saturn-yellow);
}

.process-dot-meta {
  font-size: 10px;
  color: var(--text-tertiary);
  opacity: 0.9;
}

.process-dot-text {
  color: var(--text-secondary);
}

.process-trace-list::-webkit-scrollbar {
  width: 4px;
}

.process-trace-list::-webkit-scrollbar-track {
  background: transparent;
}

.process-trace-list::-webkit-scrollbar-thumb {
  background: rgba(255, 193, 7, 0.3);
  border-radius: 2px;
}

.agent-trace-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
}

.agent-trace-btn {
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
}

.agent-trace-btn:hover {
  border-color: rgba(255, 193, 7, 0.45);
  color: var(--text-primary);
}

.agent-task-list {
  margin-top: 10px;
  padding-left: 6px;
}

.agent-task-item {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  margin-bottom: 8px;
}

.agent-task-item:last-child {
  margin-bottom: 0;
}

.agent-task-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-top: 6px;
  background: var(--border-color);
  flex-shrink: 0;
}

.agent-task-dot[data-status="pending"] {
  opacity: 0.6;
}

.agent-task-dot[data-status="running"] {
  background: var(--color-saturn-yellow);
  box-shadow: none;
}

.agent-task-dot[data-status="done"] {
  background: var(--text-tertiary);
}

.agent-task-dot[data-status="failed"] {
  background: #ef4444;
}

.agent-task-text {
  min-width: 0;
}

.agent-task-title {
  font-size: 12px;
  color: var(--text-primary);
  line-height: 1.4;
}

.agent-task-detail {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.45;
  white-space: pre-wrap;
  word-break: break-word;
}

.agent-draft-list {
  margin-top: 10px;
}

.agent-draft-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.02);
  margin-bottom: 8px;
}

.agent-draft-item:last-child {
  margin-bottom: 0;
}

.agent-draft-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border: 0;
  background: transparent;
  color: inherit;
  padding: 8px 10px;
  cursor: pointer;
}

.agent-draft-title {
  font-size: 12px;
  color: var(--text-primary);
  text-align: left;
}

.agent-draft-meta {
  font-size: 11px;
  color: var(--text-tertiary);
  white-space: nowrap;
}

.agent-draft-toggle {
  font-size: 11px;
  color: var(--text-tertiary);
}

.agent-draft-summary {
  padding: 0 10px 8px 10px;
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

.agent-draft-content {
  margin: 0;
  padding: 10px 10px 12px 10px;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: all 0.2s ease;
  font-size: 12px;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
}

.agent-draft-content.expanded {
  max-height: 420px;
  opacity: 1;
  overflow: auto;
  scroll-padding-top: 10px;
  scroll-padding-bottom: 12px;
}

.agent-metrics {
  margin-top: 10px;
  font-size: 12px;
  color: var(--text-secondary);
  padding: 8px 10px;
  border: 1px dashed rgba(255, 193, 7, 0.35);
  border-radius: var(--radius-md);
  background: rgba(255, 193, 7, 0.06);
}

.research-chat-timeline {
  padding: 0;
  margin: 0 0 var(--spacing-md) 0;
}

.research-chat-timeline::before {
  display: none;
}

.research-chat-timeline .thinking-step {
  display: none;
  margin: 0;
  min-height: 0;
  opacity: 1;
  transform: none;
  animation: none;
}

.research-chat-timeline #stepProcessTrace,
.research-chat-timeline .research-history-process {
  display: block;
}

.research-chat-timeline .thinking-step-node,
.research-chat-timeline #stepToolDecision,
.research-chat-timeline #stepGenerating,
.research-chat-timeline #stepDeepThinking,
.research-chat-timeline .agent-task-list,
.research-chat-timeline .agent-trace-toolbar,
.research-chat-timeline .process-trace-list {
  display: none !important;
}

.research-chat-timeline .thinking-step-content {
  width: 100%;
}

.research-chat-timeline .process-trace-toggle {
  pointer-events: none;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 600;
}

.research-chat-timeline .process-trace-toggle .toggle-icon {
  display: none;
}

.research-chat-timeline .thinking-step-detail {
  margin-top: 4px;
  margin-bottom: 12px;
  color: var(--text-tertiary);
}

.research-chat-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 12px;
}

.research-agent-bubble {
  --agent-color: #8a8f98;
  --agent-bg: rgba(255, 255, 255, 0.055);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  width: min(760px, 100%);
  border: 0;
  background: transparent;
  padding: 0;
}

.research-agent-bubble.role-deepseek {
  --agent-color: #3C5EFE;
  --agent-bg: rgba(60, 94, 254, 0.145);
}

.research-agent-bubble.role-kimi {
  --agent-color: #8D6AFE;
  --agent-bg: rgba(141, 106, 254, 0.14);
}

.research-agent-bubble.role-gpt55 {
  --agent-color: #10A380;
  --agent-bg: rgba(16, 163, 128, 0.14);
}

.research-agent-bubble.role-chatgpt,
.research-agent-bubble.role-openrouter {
  --agent-color: #A6B2C7;
  --agent-bg: rgba(166, 178, 199, 0.16);
}

.research-agent-bubble.role-deepseek_flash {
  --agent-color: #4D6BFE;
  --agent-bg: rgba(77, 107, 254, 0.12);
}

.research-agent-bubble.role-nemotron {
  --agent-color: #D4A72C;
  --agent-bg: rgba(212, 167, 44, 0.14);
}

.research-agent-bubble.role-gemini {
  --agent-color: #8C6FF7;
  --agent-bg: rgba(140, 111, 247, 0.14);
}

.research-agent-bubble.role-gemma {
  --agent-color: #FBBD04;
  --agent-bg: rgba(251, 189, 4, 0.16);
}

.research-agent-bubble.role-user {
  --agent-color: var(--accent-color, #3b82f6);
  --agent-bg: rgba(59, 130, 246, 0.14);
}

.research-interjection-bubble {
  border-left: 2px solid var(--accent-color, #3b82f6);
  margin-top: 4px;
}

.research-interjection-bubble .research-agent-text {
  font-style: normal;
  color: var(--text-primary);
}

.research-agent-card {
  min-width: 0;
  flex: 1;
  border: 0;
  border-radius: 6px 18px 18px 18px;
  background: var(--agent-bg);
  padding: 10px 12px 11px;
  box-shadow: none;
}

.research-agent-head {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 6px;
}

.research-agent-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--agent-color);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  flex: 0 0 auto;
  box-shadow: none;
}

.research-agent-bubble.role-gemma .research-agent-avatar {
  color: #171100;
}

.research-agent-meta {
  min-width: 0;
  flex: 1;
}

.research-agent-name {
  font-size: 13px;
  line-height: 1.25;
  color: var(--agent-color);
  font-weight: 600;
}

.research-agent-round {
  margin-top: 1px;
  font-size: 11px;
  color: var(--text-tertiary);
}

.research-agent-vote {
  display: none;
}

.research-agent-text {
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.65;
  white-space: pre-wrap;
  word-break: break-word;
}

.research-agent-thinking {
  margin-top: 9px;
  border-top: 1px solid color-mix(in srgb, var(--agent-color) 20%, transparent);
  padding-top: 8px;
}

.research-agent-thinking-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0;
  border: 0;
  background: transparent;
  color: color-mix(in srgb, var(--agent-color) 78%, var(--text-secondary));
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}

.research-agent-thinking-toggle .toggle-icon {
  display: inline-block;
  font-size: 10px;
  transform: rotate(-90deg);
  transition: transform 0.18s ease;
}

.research-agent-thinking-toggle.expanded .toggle-icon {
  transform: rotate(0deg);
}

.research-agent-thinking-content {
  display: none;
  margin-top: 8px;
  max-height: 220px;
  overflow: auto;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
}

.research-agent-thinking-content.expanded {
  display: block;
}

/* 深度思考折叠按钮 */
.deep-thinking-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 0;
  background: transparent;
  border: 0;
  border-radius: 0;
  color: var(--text-secondary);
  font-size: 12.5px;
  font-weight: 620;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}

.deep-thinking-toggle:hover {
  color: var(--text-primary);
  background: transparent;
}

.deep-thinking-toggle .toggle-icon {
  transition: transform 0.3s ease;
  font-size: 12px;
  opacity: 0.78;
}

.deep-thinking-toggle.expanded .toggle-icon {
  transform: rotate(180deg);
}

/* 深度思考内容区域 */
.deep-thinking-content {
  margin-top: 8px;
  padding: 0 0 0 14px;
  background: transparent;
  border: 0;
  border-left: 2px solid color-mix(in srgb, var(--text-primary) 12%, transparent);
  border-radius: 0;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.7;
  white-space: pre-wrap;
  word-wrap: break-word;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: all 0.3s ease;
}

.deep-thinking-content.expanded {
  max-height: min(44vh, 520px);
  opacity: 1;
  overflow-y: auto;
  scroll-padding-top: 8px;
  scroll-padding-bottom: 8px;
}

/* 深度思考内容滚动条 */
.deep-thinking-content::-webkit-scrollbar {
  width: 4px;
}

.deep-thinking-content::-webkit-scrollbar-track {
  background: transparent;
}

.deep-thinking-content::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--text-primary) 20%, transparent);
  border-radius: 2px;
}

/* 思考句子 */
.thinking-sentence {
  display: block;
  margin-bottom: 8px;
}

.thinking-sentence strong {
  font-weight: 600;
  color: var(--text-primary);
}

/* 正在输入指示器 */
.thinking-current-typing {
  opacity: 0.85;
}

.thinking-current-typing::after {
  content: '▊';
  display: inline;
  animation: cursor-blink 1s ease-in-out infinite;
  color: var(--text-tertiary);
  font-weight: normal;
}

@keyframes cursor-blink {

  0%,
  100% {
    opacity: 0;
  }

  50% {
    opacity: 1;
  }
}

/* 隐藏旧样式 */
.thinking-indicator,
.thinking-header,
.thinking-preview,
.thinking-toggle-btn,
.thinking-line,
.thinking-content,
.sentence-display {
  display: none !important;
}

/* 浅色主题适配 */
[data-theme="light"] .thinking-timeline::before {
  background: var(--border-color);
}

[data-theme="light"] .deep-thinking-toggle {
  background: transparent;
}

[data-theme="light"] .process-trace-list {
  background: rgba(255, 193, 7, 0.03);
}

[data-theme="light"] .deep-thinking-content {
  background: transparent;
  border-left-color: color-mix(in srgb, var(--text-primary) 14%, transparent);
}

/* 移动端适配 */
@media (max-width: 768px) {
  .thinking-timeline {
    padding-left: 20px;
  }

  .thinking-timeline::before {
    left: 6px;
  }

  .thinking-step-node {
    left: -17px;
    width: 8px;
    height: 8px;
  }

  .thinking-step-title {
    font-size: 12px;
  }

  .thinking-step-detail {
    font-size: 11px;
  }

  .deep-thinking-toggle {
    padding: 4px 0;
    font-size: 11px;
  }

  .process-trace-toggle {
    padding: 4px 10px;
    font-size: 11px;
  }

  .deep-thinking-content {
    font-size: 12px;
    padding: 0 0 0 12px;
  }
}

/* ==================== 旧样式保留（向后兼容历史消息） ==================== */

/* 图片加载中占位符（流式渲染时使用） */
.image-loading-placeholder {
  display: inline-block;
  padding: 8px 16px;
  background: var(--bg-tertiary);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 13px;
  margin: 8px 0;
}

/* 图片加载失败提示 */
.image-error {
  display: inline-block;
  padding: 4px 8px;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-sm);
  color: var(--error-color);
  font-size: 12px;
  margin: 4px 0;
}

/* AI头像闪烁动画 - 思考时黄色光晕 */
.ai-avatar.thinking {
  animation: glow-pulse ease-in-out infinite;
}

@keyframes glow-pulse {

  0%,
  100% {
    box-shadow: 0 0 10px var(--color-saturn-yellow),
      0 0 20px var(--color-saturn-yellow);
  }

  50% {
    box-shadow: 0 0 20px var(--color-saturn-yellow),
      0 0 40px var(--color-saturn-yellow);
  }
}

/* AI头像上下缓动动画 - 等待响应时 */
.ai-avatar.processing {
  animation: avatar-bounce 1s ease-in-out infinite;
}

@keyframes avatar-bounce {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-4px);
  }
}

/* 围绕RAI logo的圆形加载圈动画 */
.ai-avatar.processing::after {
  content: '';
  position: absolute;
  top: -4px;
  left: -4px;
  right: -4px;
  bottom: -4px;
  border-radius: 50%;
  border: 2px solid transparent;
  border-top-color: var(--color-saturn-yellow);
  border-right-color: var(--color-saturn-yellow);
  animation: loading-ring-spin 1s linear infinite;
  pointer-events: none;
}

@keyframes loading-ring-spin {
  to {
    transform: rotate(360deg);
  }
}

/* 确保头像容器有相对定位 */
.message-avatar {
  position: relative;
}

/* AI加载状态提示 */
.loading-status {
  position: absolute;
  left: calc(100% + 8px);
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  color: var(--text-secondary);
  font-size: 12px;
  animation: status-fade 1.5s ease-in-out infinite;
}

.loading-status .status-icon {
  width: 14px;
  height: 14px;
  animation: spin 1s linear infinite;
}

@keyframes status-fade {

  0%,
  100% {
    opacity: 0.6;
  }

  50% {
    opacity: 1;
  }
}

/*  搜索状态显示 - 与meta-badge风格统一 */
.search-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  margin-bottom: 12px;
  margin-left: 18px;
  /* 与消息文本左边距对齐 */
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 500;
  color: var(--text-secondary);
  animation: searchStatusSlideIn 0.3s ease-out;
}

@keyframes searchStatusSlideIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.search-status .search-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  font-size: 11px;
  line-height: 1;
}

.search-status .search-label-icon {
  flex-shrink: 0;
  display: inline-block;
  vertical-align: middle;
  width: 14px;
  height: 14px;
}

.search-status .search-label-icon.success {
  color: var(--success-color);
}

.search-status .search-label-icon.warning {
  color: var(--warning-color);
}

.search-status .search-query {
  display: inline-flex;
  align-items: center;
  color: var(--text-primary);
  font-weight: 600;
  font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
  background: var(--bg-secondary);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 11px;
  line-height: 1.2;
  vertical-align: middle;
}

/* 打字动画效果 */
.search-status .search-query.typewriter {
  animation: typewriterBlink 0.8s step-end infinite;
  border-right: 2px solid var(--text-primary);
}

@keyframes typewriterBlink {

  0%,
  100% {
    border-right-color: var(--text-primary);
  }

  50% {
    border-right-color: transparent;
  }
}

.search-status .search-result-count {
  color: var(--text-tertiary);
  font-size: 12px;
  margin-left: 4px;
}

.search-status.complete {
  border-color: var(--success-color);
  background: rgba(42, 169, 127, 0.1);
  transition: opacity 0.3s ease;
}

.search-status.complete .search-query {
  border-color: var(--success-color);
  animation: none;
  border-right: none;
}

.search-status.complete .search-result-count {
  color: var(--success-color);
  font-weight: 500;
}

.search-status.tool-status {
  width: fit-content;
  max-width: min(620px, calc(100% - 36px));
}

.search-status.image-generation-status {
  border-color: color-mix(in srgb, var(--border-color) 72%, var(--text-tertiary) 28%);
  background: color-mix(in srgb, var(--bg-tertiary) 86%, var(--bg-secondary) 14%);
}

.search-status.image-generation-status .search-label {
  line-height: 1.45;
}

.image-status-dot {
  width: 7px;
  height: 7px;
  flex: 0 0 7px;
  border-radius: 999px;
  background: currentColor;
  opacity: 0.7;
  animation: imageStatusPulse 1.4s ease-in-out infinite;
}

.search-status.image-generation-status[data-status="complete"] .image-status-dot {
  animation: none;
  opacity: 0.55;
}

.search-status.image-generation-status[data-status="failed"] .image-status-dot {
  animation: none;
  color: var(--warning-color);
  opacity: 0.85;
}

.image-status-text {
  overflow-wrap: anywhere;
}

@keyframes imageStatusPulse {
  0%, 100% {
    transform: scale(0.72);
    opacity: 0.45;
  }

  50% {
    transform: scale(1);
    opacity: 0.9;
  }
}

/* 浅色主题适配 */
[data-theme="light"] .thinking-toggle-text {
  color: #6B7280;
}

[data-theme="light"] .thinking-expand-icon {
  color: #9CA3AF;
}

[data-theme="light"] .thinking-content {
  color: #6B7280;
}

[data-theme="light"] .sentence-display {
  color: #6B7280;
}

/* 响应式布局 */
@media (max-width: 768px) {
  .sentence-display {
    max-width: calc(100vw - 120px);
    font-size: 12px;
    padding-left: 36px;
    /* 移动端头像28px + 8px间距 */
  }

  .thinking-content {
    padding-left: 22px;
    /* 移动端在竖线右侧 (14px + 8px) */
    font-size: 12px;
  }
}



/* ==================== 输入区域悬浮样式 ==================== */
.input-area {
  position: absolute;
  /* 保持absolute以便桌面端居中 */
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  padding: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  background: transparent;
  border-top: none;
  overflow-x: visible;
  overflow-y: visible;
  overscroll-behavior: none;
  pointer-events: none;
  /* 恢复，让布局正常 */
  z-index: 20;
  /* 确保在最上层 */
}

.input-wrapper {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  box-sizing: border-box;
  /* flexbox居中，让宽度变化从中心展开 */
  display: flex;
  justify-content: center;
  min-width: 0;
  overflow-x: visible;
  overflow-y: visible;
}

.input-container {
  position: relative;
  max-width: 100%;
  box-sizing: border-box;
  background: var(--composer-surface-bg);
  backdrop-filter: blur(24px) saturate(120%);
  -webkit-backdrop-filter: blur(24px) saturate(120%);
  border: none;
  border-radius: var(--radius-xl);
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.22);
  pointer-events: auto;
  cursor: text;
  width: 100%;
  overflow: visible;
}

[data-theme="light"] .input-container {
  background: var(--composer-surface-bg);
}

.input-container:focus-within {
  background: var(--composer-surface-bg);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.24);
}

[data-theme="light"] .input-container:focus-within,
[data-theme="light"] body.mobile-viewport-managed .input-container:focus-within {
  background: var(--composer-surface-bg);
}


/* ==================== 引用预览样式 ==================== */
.quote-preview {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-tertiary);
  border-left: 3px solid var(--accent-color);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
  animation: slideIn 0.2s ease;
}

.quote-preview-content {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}

.quote-preview-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--accent-color);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.quote-preview-text {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.4;
  max-height: 60px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  line-clamp: 3;
  word-break: break-word;
}

.quote-preview-remove {
  width: 24px;
  height: 24px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 50%;
  color: var(--text-tertiary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  flex-shrink: 0;
  margin-left: var(--spacing-sm);
}

.quote-preview-remove:hover {
  background: var(--error-color);
  color: white;
}

.quote-preview-remove .remove-icon {
  width: 16px;
  height: 16px;
}

/* 浅色主题引用预览 */
[data-theme="light"] .quote-preview {
  background: #F3F4F6;
  border-left-color: var(--accent-color);
}

/* ==================== 附件预览样式 (多模态) ==================== */
.attachment-preview {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
  animation: slideIn 0.2s ease;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.attachment-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex: 1;
  min-width: 0;
}

.attachment-thumbnail {
  width: 40px;
  height: 40px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.attachment-icon {
  width: 20px;
  height: 20px;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.attachment-type {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.attachment-name {
  font-size: 13px;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.attachment-size {
  font-size: 12px;
  color: var(--text-tertiary);
  flex-shrink: 0;
}

.attachment-remove {
  width: 24px;
  height: 24px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 50%;
  color: var(--text-tertiary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  flex-shrink: 0;
}

.attachment-remove:hover {
  background: var(--error-color);
  color: white;
}

.attachment-remove .remove-icon {
  width: 16px;
  height: 16px;
}

/* 浅色主题附件预览 */
[data-theme="light"] .attachment-preview {
  background: #F3F4F6;
  border-color: #E5E7EB;
}

.upload-progress {
  width: 100%;
  min-width: 0;
  min-height: 48px;
  margin-bottom: var(--spacing-sm);
  padding: 8px 0 6px;
  color: var(--text-primary);
}

.upload-progress[hidden] {
  display: none;
}

.upload-progress-copy {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 7px;
  font-size: 12px;
  line-height: 1.35;
}

.upload-progress-name {
  min-width: 0;
  overflow: hidden;
  color: var(--text-primary);
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.upload-progress-detail {
  color: var(--text-secondary);
  text-align: right;
  white-space: nowrap;
}

.upload-progress-track {
  width: 100%;
  height: 5px;
  overflow: hidden;
  border-radius: 3px;
  background: var(--bg-tertiary);
}

.upload-progress-bar {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--color-saturn-yellow);
  transition: width 0.15s ease;
}

.upload-progress[data-state="completed"] .upload-progress-bar {
  background: var(--success-color);
}

.upload-progress[data-state="failed"] .upload-progress-detail {
  color: var(--error-color);
}

.upload-progress[data-state="failed"] .upload-progress-bar {
  background: var(--error-color);
}

@media (max-width: 520px) {
  .upload-progress-copy {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
  }

  .upload-progress-detail {
    overflow: hidden;
    text-align: left;
    text-overflow: ellipsis;
  }
}

/* 底部工具栏：左侧按钮 + 右侧发送 */
.input-toolbar {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  width: 100%;
  box-sizing: border-box;
  padding-top: var(--spacing-sm);
  /* 取消分割线 */
  border-top: none;
  opacity: 1;
  overflow: visible;
  min-width: 0;
  max-width: 100%;
}

.toolbar-btn {
  width: 36px;
  /* 圆形按钮 */
  height: 36px;
  padding: 0;
  background: var(--bg-tertiary);
  border: none;
  /* 无边框 */
  border-radius: 50%;
  /* 圆形 */
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  /* 涟漪效果需要 */
}

.toolbar-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.toolbar-btn.active {
  background: var(--bg-hover);
  color: var(--accent-color);
}

.toolbar-btn.disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

/* MD涟漪效果 */
.ripple-effect {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: scale(0);
  animation: ripple-animation 0.6s linear;
  pointer-events: none;
  z-index: 0;
}

@keyframes ripple-animation {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

.toolbar-btn .material-symbols-outlined {
  font-size: 16px;
}

/* 悬浮显示标签（工具提示）- 排除涟漪元素 */
.toolbar-btn span:not(.ripple-effect) {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-secondary);
  border: none;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 11px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s, visibility 0.2s;
  z-index: 1000;
  box-shadow: var(--shadow-lg);
}

/* 添加小箭头 */
.toolbar-btn span::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--bg-secondary);
}

.toolbar-btn:hover span {
  opacity: 1;
  visibility: visible;
}

/* 移动端触摸支持 */
.toolbar-btn.touch-active span {
  opacity: 1;
  visibility: visible;
}

/* 所有设备：鼠标悬停或触摸点击显示标签 */
@media (hover: none) {

  /* 触摸设备上点击显示，2秒后自动隐藏 */
  .toolbar-btn span {
    display: none;
  }

  .toolbar-btn.touch-active span {
    display: block;
  }
}

/* 工具栏右侧空白区域，用于推动发送按钮到右侧 */
.toolbar-spacer {
  flex: 1;
}

/* ==================== 自定义模型选择器 ==================== */
.model-selector {
  position: relative;
  flex: 0 0 auto;
}

.model-select-custom {
  width: auto;
  min-width: 80px;
  height: 36px;
  /* 与工具栏按钮同高 */
  padding: 0 10px 0 14px;
  background: var(--bg-tertiary);
  border: none;
  /* 无边框 */
  border-radius: 18px;
  /* 胶囊形状 */
  font-size: 12px;
  color: var(--text-primary);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 4px;
  user-select: none;
  white-space: nowrap;
  overflow: hidden;
  /* 涟漪效果需要 */
  position: relative;
}

.model-select-label {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.model-select-custom:hover {
  background: var(--bg-hover);
}

.model-select-arrow {
  font-size: 16px;
  color: var(--text-secondary);
  transform: var(--model-arrow-transform, none);
  transition: transform var(--menu-motion-duration) var(--menu-motion-easing);
}

.model-select-custom.open .model-select-arrow {
  --model-arrow-transform: rotate(180deg);
}

/* ==================== 模型选择下拉菜单==================== */
.model-modal {
  display: none;
}

.model-dropdown-menu {
  position: fixed;
  /* Positioned on right to align with send button */
  width: min(252px, calc(100vw - 28px));
  min-width: 0;
  box-sizing: border-box;
  background: var(--bg-secondary);
  border: none;
  max-width: min(252px, calc(100vw - 28px));
  border-radius: 20px;
  box-shadow: var(--floating-menu-shadow);
  z-index: 4000;
  overflow: hidden;
  display: block;
  max-height: 70vh;
  overflow-y: auto;
  /* 内边距使选项与边框保持距离 */
  padding: 8px;
  pointer-events: none;
  visibility: hidden;
  opacity: 0;
  transform: translateY(8px) scale(0.96);
  transform-origin: var(--menu-origin-x, right) var(--menu-origin-y, bottom);
  scrollbar-width: none;
  will-change: opacity, transform;
  transition:
    opacity var(--menu-motion-duration) var(--menu-motion-easing),
    transform var(--menu-motion-duration) var(--menu-motion-easing),
    visibility 0s linear var(--menu-motion-duration);
}

.model-dropdown-menu::-webkit-scrollbar {
  width: 0;
  height: 0;
}

.model-dropdown-menu.active {
  visibility: visible;
  pointer-events: auto;
  opacity: 1;
  transform: translateY(0) scale(1);
  transition-delay: 0s;
}

.model-dropdown-menu.closing {
  display: block;
  pointer-events: none;
}

.model-menu-item {
  width: 100%;
  min-height: 56px;
  padding: 10px 12px;
  box-sizing: border-box;
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  align-items: center;
  column-gap: 12px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  position: relative;
  /* 圆角矩形效果 */
  border-radius: 12px;
  border: 0;
  background: transparent;
  color: var(--text-primary);
  font: inherit;
  text-align: left;
  appearance: none;
  margin: 0;
}

.model-menu-item:hover,
.model-menu-item:focus-visible {
  background: var(--bg-hover);
}

.model-menu-item:focus-visible {
  outline: 2px solid var(--focus-ring-color);
  outline-offset: -2px;
}

.model-dropdown-menu > .model-menu-item ~ .model-menu-item,
.all-models-section > .model-menu-item ~ .model-menu-item {
  margin-top: 4px;
}

.model-menu-item.selected {
  background: var(--bg-tertiary);
}

.model-menu-item.membership-locked,
.model-card.membership-locked,
.chatflow-model-menu .model-menu-item.membership-locked {
  opacity: 0.45;
  filter: grayscale(1);
  cursor: not-allowed;
}

.model-menu-item.membership-available,
.model-card.membership-available {
  opacity: 1;
  filter: none;
}

.model-menu-item.membership-locked:hover,
.model-card.membership-locked:hover,
.chatflow-model-menu .model-menu-item.membership-locked:hover {
  background: transparent;
}

.admin-model-hidden {
  display: none !important;
}

.chatflow-model-menu .model-menu-item {
  display: block;
  min-height: auto;
  padding: 10px 16px;
}

.model-menu-icon {
  width: 24px;
  height: 24px;
  justify-self: center;
  flex-shrink: 0;
  color: var(--text-secondary);
}

.model-provider-icon {
  display: inline-block;
  background: currentColor;
}

.openai-provider-icon {
  -webkit-mask: url("icons/OpenAI.svg") center / contain no-repeat;
  mask: url("icons/OpenAI.svg") center / contain no-repeat;
}

.deepseek-provider-icon {
  color: var(--deepseek-blue);
  -webkit-mask: url("icons/DeepSeekIcon.svg") center / contain no-repeat;
  mask: url("icons/DeepSeekIcon.svg") center / contain no-repeat;
}

.model-provider-img {
  display: block;
  object-fit: contain;
}

.model-menu-icon.kimi-provider-img {
  width: 24px;
  height: 24px;
}

.model-card .model-provider-icon,
.model-card .model-provider-img {
  width: 32px;
  height: 32px;
}

.model-menu-item.selected .model-menu-icon {
  color: var(--accent-color);
}

.model-menu-item.selected .deepseek-provider-icon {
  color: var(--deepseek-blue);
}

.model-menu-content {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.model-menu-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  width: 100%;
  min-width: 0;
  overflow: visible;
  font-size: 14px;
  line-height: 1.25;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}

.model-menu-name {
  min-width: 0;
  overflow: visible;
  text-overflow: clip;
  white-space: normal;
  line-height: 1.2;
}

.model-menu-description {
  font-size: 12px;
  line-height: 1.25;
  color: var(--text-secondary);
}

/* 模型标签徽章样式 */
.model-badge {
  display: inline-flex;
  align-items: center;
  height: 20px;
  font-size: 11px;
  line-height: 1;
  font-weight: 600;
  padding: 0 8px;
  border-radius: 6px;
  margin-left: 8px;
  white-space: nowrap;
  background: rgba(245, 213, 71, 0.2);
  color: #f5d547;
  flex: 0 0 auto;
}

.model-badge.free {
  background: #22c55e;
  color: #fff;
}

.model-badge.limited-free {
  background: #facc15;
  color: #18181b;
}

.model-badge.max-only {
  background: linear-gradient(135deg, #1f2937 0%, #111827 45%, #8b6b16 100%);
  color: #f6d36b;
  border: 1px solid rgba(246, 211, 107, 0.35);
}

.model-menu-item.membership-available .model-badge.max-only,
.model-card.membership-available .model-badge.max-only {
  background: linear-gradient(135deg, #0f172a 0%, #111827 40%, #d4af37 100%);
  color: #fdf2c7;
  border: 1px solid rgba(212, 175, 55, 0.55);
}

.model-menu-divider {
  display: none;
  /* 分割线与菜单项对齐 */
}

/* 全部模型展开区域 */
.model-menu-divider + .model-menu-item {
  margin-top: 4px;
}

.all-models-section {
  background: transparent;
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transform: translateY(-4px);
  visibility: hidden;
  pointer-events: none;
  margin-top: 0;
  transition:
    max-height var(--menu-motion-duration) var(--menu-motion-easing),
    opacity var(--menu-motion-duration) var(--menu-motion-easing),
    transform var(--menu-motion-duration) var(--menu-motion-easing),
    margin var(--menu-motion-duration) var(--menu-motion-easing),
    visibility 0s linear var(--menu-motion-duration);
  will-change: max-height, opacity, transform;
}

.all-models-section.expanded {
  visibility: visible;
  pointer-events: auto;
  opacity: 1;
  transform: translateY(0);
  margin-top: 4px;
  transition-delay: 0s;
}

.all-models-section .model-menu-item {
  min-height: 54px;
  grid-template-columns: minmax(0, 1fr);
  column-gap: 0;
  padding-left: 48px;
}

/* 全部模型箭头图标 */
.model-menu-arrow {
  width: 20px;
  height: 20px;
  position: absolute;
  right: 10px;
  justify-self: center;
  flex-shrink: 0;
  color: var(--text-secondary);
  transition: transform var(--menu-motion-duration) var(--menu-motion-easing);
}

.model-menu-item[data-toggle="all-models"] {
  padding-right: 40px;
}

.model-menu-item[data-toggle="all-models"].expanded .model-menu-arrow {
  transform: rotate(180deg);
}

.model-option {
  display: none;
}

.model-option:hover {
  background: var(--bg-hover);
}

.model-option.selected {
  background: var(--bg-tertiary);
  color: var(--accent-color);
  font-weight: 600;
}

/* 输入行只包含textarea */
.input-row {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
}

.message-input {
  flex: 1;
  min-width: 0;
  min-height: 24px;
  max-height: 200px;
  padding: 0;
  border: none;
  background: transparent;
  font-size: 16px;
  /* iOS 防止自动缩放，最小必须 16px */
  color: var(--text-primary);
  resize: none;
  outline: none;
  font-family: inherit;
  line-height: 1.5;
  transition: font-size 0.2s;
  -webkit-appearance: none;
  appearance: none;
}

.message-input::placeholder {
  color: var(--text-tertiary);
}

.send-btn,
.stop-btn {
  width: 32px;
  height: 32px;
  border: none;
  /* 圆角顺序：左上 右上 右下 左下 */
  border-radius: 50px 50px 50px 50px;
  /* 发送/停止按钮 */
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  flex-shrink: 0;
  background: var(--accent-color);
  color: var(--bg-primary);
  touch-action: manipulation;
}

.send-btn:hover:not(:disabled) {
  background: var(--accent-hover);
  transform: scale(1.05);
}

.send-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  background: var(--text-tertiary);
}

.stop-btn {
  background: var(--error-color);
  color: white;
}

.stop-btn:hover {
  background: #DC2626;
}

.send-btn .material-symbols-outlined,
.stop-btn .material-symbols-outlined {
  font-size: 18px;
}

/* ==================== 设置面板 ==================== */
.settings-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  padding: var(--spacing-lg);
  animation: fadeIn 0.2s;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.settings-modal.active {
  display: flex;
}

.settings-content {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  max-width: 760px;
  width: 100%;
  max-height: min(90vh, 920px);
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.3s;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.settings-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.settings-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.close-btn {
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  transition: all 0.2s;
}

.close-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.settings-body {
  padding: 14px 18px 18px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  align-items: start;
}

.settings-group {
  margin-bottom: 0;
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--border-color);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.02);
}

#settingsAccountSection,
#ztx6dBindingSection,
#settingsPreferencesSection,
#settingsAdvancedSection {
  grid-column: 1 / -1;
}

.settings-group-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
}

.setting-item {
  margin-bottom: 12px;
}

.setting-item:last-child {
  margin-bottom: 0;
}

.setting-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.setting-description {
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 6px;
  line-height: 1.4;
}

.settings-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 12px;
}

.settings-password-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.settings-subsection {
  margin-top: 2px;
  padding-top: 10px;
  border-top: 1px dashed var(--border-color);
}

.settings-subsection-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.settings-subsection-desc {
  margin-bottom: 10px;
}

@media (max-width: 860px) {
  .settings-password-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.ztx6d-binding-card {
  padding: 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
}

.ztx6d-binding-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.ztx6d-binding-status {
  flex: 1;
  margin-bottom: 0;
  line-height: 1.5;
}

#ztx6dBindBtn {
  background: var(--text-primary);
  color: var(--bg-primary);
  border: none;
  white-space: nowrap;
}

#ztx6dBindBtn:hover:not(:disabled) {
  background: var(--text-primary);
  opacity: 0.86;
}

#ztx6dBindBtn:disabled {
  background: var(--bg-hover);
  color: var(--text-tertiary);
  opacity: 1;
  cursor: not-allowed;
}

@media (max-width: 480px) {
  .settings-modal {
    padding: 10px;
  }

  .settings-content {
    max-height: 94vh;
  }

  .settings-header,
  .settings-body,
  .settings-footer {
    padding-left: 12px;
    padding-right: 12px;
  }

  .settings-body {
    grid-template-columns: 1fr;
  }

  #settingsAccountSection,
  #ztx6dBindingSection,
  #settingsPreferencesSection,
  #settingsAdvancedSection {
    grid-column: auto;
  }

  .settings-form-grid,
  .settings-password-grid,
  .advanced-options-content {
    grid-template-columns: 1fr;
  }

  .ztx6d-binding-actions {
    align-items: stretch;
    flex-direction: column;
  }

  #ztx6dBindBtn {
    width: 100%;
  }
}

.setting-input {
  width: 100%;
  min-height: 42px;
  padding: 10px 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 14px;
  line-height: 1.4;
  outline: none;
  transition: border-color 0.2s;
  -webkit-appearance: none;
  appearance: none;
}

.system-prompt-input {
  width: 100%;
  min-height: 96px;
  padding: 12px 14px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 14px;
  line-height: 1.5;
  resize: vertical;
  outline: none;
  transition: border-color 0.2s;
  -webkit-appearance: none;
  appearance: none;
}

.setting-input:focus {
  outline: none;
  border-color: var(--text-tertiary);
  box-shadow: 0 0 0 1px var(--text-tertiary);
}

.system-prompt-input:focus {
  border-color: var(--focus-border-color);
}

/* 高级选项样式 */
.advanced-options-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  padding: 0;
  user-select: none;
}

.advanced-options-icon {
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.advanced-options-header.expanded .advanced-options-icon {
  transform: rotate(180deg);
}

.advanced-options-content {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 12px;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.advanced-options-content.expanded {
  max-height: 720px;
  opacity: 1;
  margin-top: 10px;
}

.advanced-options-content .setting-item {
  margin-bottom: 0;
}

.setting-textarea {
  min-height: 100px;
  resize: vertical;
  font-family: 'Monaco', 'Courier New', monospace;
  font-size: 12px;
}

.slider-container {
  padding: var(--spacing-md) 0;
}

.slider-input {
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: var(--border-color);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.slider-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: var(--radius-full);
  background: var(--accent-color);
  cursor: pointer;
  transition: all 0.2s;
}

.slider-input::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.slider-input::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border: none;
  border-radius: var(--radius-full);
  background: var(--accent-color);
  cursor: pointer;
}

.slider-value {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-left: var(--spacing-sm);
}

.settings-footer {
  padding: 12px 18px;
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.btn {
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--accent-color);
  color: var(--bg-primary);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-hover);
}

.btn-danger {
  background: transparent;
  color: var(--error-color);
  border: 1px solid var(--error-color);
}

.btn-danger:hover {
  background: var(--error-color);
  color: white;
}

/* ==================== 移动端键盘优化 CSS ==================== */
/* iOS 防止橡皮筋效果 */
.prevent-bounce {
  overscroll-behavior: none;
  -webkit-overflow-scrolling: touch;
}

/* Android 防止过度滚动 */
.no-overscroll {
  overscroll-behavior-y: contain;
}

/* 平滑滚动 */
@media (prefers-reduced-motion: no-preference) {
  .smooth-scroll {
    scroll-behavior: smooth;
  }
}

/* 底部固定输入框容器优化 */
.fixed-input-container {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding-bottom: max(12px, env(safe-area-inset-bottom));
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
  transform: translateY(0);
}

/* iOS 安全区域适配 */
@supports (padding: max(0px)) {
  body {
    padding-left: 0;
    padding-right: 0;
  }
}

/* 确保输入框在移动端有足够的高度 */
@media (max-width: 768px) {
  .message-input {
    font-size: 16px !important;
    /* 强制 16px 防止缩放 */
  }
}

/* ==================== 拖拽上传覆盖层 ==================== */
.drop-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  pointer-events: none;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.drop-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.drop-overlay-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 48px 64px;
  background: var(--bg-secondary);
  border: 3px dashed var(--color-saturn-yellow);
  border-radius: 24px;
  color: var(--text-primary);
  font-size: 18px;
  font-weight: 500;
  text-align: center;
}

.drop-overlay-content svg {
  color: var(--color-saturn-yellow);
  animation: drop-icon-bounce 1s ease-in-out infinite;
}

@keyframes drop-icon-bounce {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-8px);
  }
}

/* Toast 通知样式 */
.toast-notification {
  position: fixed;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%) translateY(20px) scale(0.98);
  background: var(--notification-surface-bg);
  color: var(--text-primary);
  padding: 12px 22px;
  border-radius: 16px;
  border: 0;
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(20px) saturate(120%);
  -webkit-backdrop-filter: blur(20px) saturate(120%);
  font-size: 14px;
  z-index: 10001;
  opacity: 0;
  transition: opacity 0.36s var(--menu-motion-easing), transform 0.36s var(--menu-motion-easing);
}

[data-theme="light"] .toast-notification {
  background: var(--notification-surface-bg);
  color: var(--text-primary);
}

.toast-notification.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0) scale(1);
}

/* 签到结果站内弹窗：无装饰描边，以灰阶表面和右下阴影建立层级。 */
.rai-checkin-dialog-backdrop {
  position: fixed;
  z-index: 1040000;
  inset: 0;
  display: grid;
  place-items: center;
  padding: max(18px, env(safe-area-inset-top, 0px)) max(18px, env(safe-area-inset-right, 0px)) max(18px, env(safe-area-inset-bottom, 0px)) max(18px, env(safe-area-inset-left, 0px));
  background: rgba(0, 0, 0, 0.48);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  transition: opacity 180ms var(--menu-motion-easing);
}

.rai-checkin-dialog-backdrop[hidden] {
  display: none !important;
}

.rai-checkin-dialog-backdrop.is-active {
  opacity: 1;
}

.rai-checkin-dialog {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  width: min(410px, 100%);
  padding: 22px;
  border: 0;
  border-radius: 22px;
  background: var(--notification-surface-bg);
  color: var(--text-primary);
  box-shadow: 16px 20px 52px rgba(0, 0, 0, 0.4), 5px 8px 18px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(24px) saturate(120%);
  -webkit-backdrop-filter: blur(24px) saturate(120%);
  transform: translateY(10px) scale(0.98);
  transition: transform 220ms var(--menu-motion-easing);
}

.rai-checkin-dialog-backdrop.is-active .rai-checkin-dialog {
  transform: translateY(0) scale(1);
}

.rai-checkin-dialog-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--color-saturn-yellow) 22%, var(--bg-tertiary));
  color: var(--color-saturn-yellow);
  font-size: 22px;
  font-weight: 800;
}

.rai-checkin-dialog.is-error .rai-checkin-dialog-mark {
  background: color-mix(in srgb, var(--error-color) 18%, var(--bg-tertiary));
  color: var(--error-color);
}

.rai-checkin-dialog.is-info .rai-checkin-dialog-mark {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}

.rai-checkin-dialog-copy {
  min-width: 0;
  align-self: center;
}

.rai-checkin-dialog-copy h2 {
  margin: 0;
  color: var(--text-primary);
  font-size: 18px;
  line-height: 1.3;
}

.rai-checkin-dialog-copy p {
  margin: 5px 0 0;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.rai-checkin-dialog-confirm {
  grid-column: 2;
  justify-self: end;
  min-width: 104px;
  min-height: 44px;
  padding: 0 18px;
  border: 0;
  border-radius: 999px;
  background: var(--color-saturn-yellow);
  color: #171710;
  font: inherit;
  font-weight: 750;
  cursor: pointer;
}

.rai-checkin-dialog-confirm:hover {
  filter: brightness(1.04);
}

.rai-checkin-dialog-confirm:focus-visible {
  outline: 2px solid var(--focus-ring-color);
  outline-offset: 3px;
}

@media (max-width: 520px) {
  .rai-checkin-dialog-backdrop {
    align-items: end;
    padding-top: max(14px, env(safe-area-inset-top, 0px));
    padding-right: max(12px, env(safe-area-inset-right, 0px));
    padding-bottom: max(14px, env(safe-area-inset-bottom, 0px));
    padding-left: max(12px, env(safe-area-inset-left, 0px));
  }

  .rai-checkin-dialog {
    width: 100%;
    padding: 20px;
    border-radius: 20px;
  }

  .rai-checkin-dialog-confirm {
    grid-column: 1 / -1;
    justify-self: stretch;
    width: 100%;
  }
}

.app-update-prompt {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 10002;
  display: flex;
  align-items: center;
  gap: 16px;
  width: min(440px, calc(100vw - 32px));
  padding: 16px;
  border: 0;
  border-radius: 16px;
  background: var(--notification-surface-bg);
  color: var(--text-primary);
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(20px) saturate(120%);
  -webkit-backdrop-filter: blur(20px) saturate(120%);
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.22s ease, transform 0.22s ease;
}

.app-update-prompt.show {
  opacity: 1;
  transform: translateY(0);
}

.app-update-text {
  min-width: 0;
  flex: 1;
}

.app-update-title {
  font-size: 0.95rem;
  font-weight: 760;
  line-height: 1.3;
}

.app-update-desc {
  margin-top: 4px;
  color: var(--text-secondary);
  font-size: 0.82rem;
  line-height: 1.45;
}

.app-update-btn {
  flex: 0 0 auto;
  min-height: 38px;
  padding: 0 16px;
  border: 0;
  border-radius: 999px;
  background: var(--color-saturn-yellow);
  color: #1F1A06;
  font-size: 0.86rem;
  font-weight: 760;
  cursor: pointer;
}

/* ==================== 登录/注册界面 ==================== */
.auth-container {
  position: fixed;
  top: 0;
}



html,
body {
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
  /* 禁止body滚动 */
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
  position: fixed;
  /* 防止iOS橡皮筋效果和意外滚动 */
}

.app-container {
  display: flex;
  width: 100%;
  height: 100%;
  /* 将由JS动态调整 */
  background-color: transparent;
  position: relative;
  overflow: hidden;
  /* 确保内部滚动不影响整体 */
}

.auth-container {
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
}

.auth-container.active {
  display: flex;
}

/* The HTML starts on a neutral shell. Authentication is the only path that may
   reveal the sign-in view, so a restored cookie cannot flash a login frame. */
html[data-rai-auth-state="checking"] .app-container {
  visibility: visible;
}

.settings-toggle-row,
.settings-inline-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.settings-inline-actions {
  justify-content: space-between;
  width: 100%;
}

.auth-box {
  width: 100%;
  max-width: 400px;
  padding: var(--spacing-xl);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  margin: var(--spacing-lg);
  position: relative;
}

/* 登录界面语言切换按钮 */
.auth-lang-btn {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: rgba(128, 128, 128, 0.2);
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-lang-btn:hover {
  background: rgba(128, 128, 128, 0.4);
  transform: scale(1.05);
}

.auth-logo {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.auth-logo-text {
  font-size: 42px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -1px;
}

.auth-title {
  font-size: 22px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  text-align: center;
}

.auth-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.form-input {
  padding: var(--spacing-md);
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--text-primary);
  transition: all 0.2s;
  font-family: inherit;
}

.form-input:focus {
  outline: none;
  border-color: var(--text-tertiary);
  box-shadow: 0 0 0 1px var(--text-tertiary);
}

.auth-btn {
  padding: var(--spacing-md);
  background: var(--accent-color);
  color: var(--bg-primary);
  border: none;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  margin-top: var(--spacing-md);
}

.auth-btn:hover:not(:disabled) {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.auth-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.auth-forgot-row {
  display: flex;
  justify-content: flex-end;
  margin-top: 2px;
}

.auth-forgot-row.is-hidden {
  display: none;
}

.auth-forgot-btn {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font: inherit;
  font-size: 12px;
  font-weight: 650;
  transition: color 0.18s ease, opacity 0.18s ease;
}

.auth-forgot-btn:hover {
  color: var(--text-primary);
}

.auth-method-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  padding: 4px;
  border-radius: 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
}

.auth-method-btn {
  min-height: 34px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  transition: background 0.18s ease, color 0.18s ease;
}

.auth-method-btn.active {
  background: var(--bg-primary);
  color: var(--text-primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.auth-code-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
}

.auth-code-row .form-input {
  min-width: 0;
}

.auth-inline-action {
  min-width: 58px;
  min-height: 42px;
  padding: 0 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  font-weight: 760;
  transition: opacity 0.18s ease, background 0.18s ease;
}

.auth-inline-action:hover:not(:disabled) {
  background: var(--input-bg);
}

.auth-inline-action:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.auth-two-factor-hint {
  margin: 0;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.45;
}

.forgot-password-overlay {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-modal) + 1);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 18px;
  background: rgba(0, 0, 0, 0.66);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.forgot-password-overlay.active {
  display: flex;
}

.forgot-password-card {
  position: relative;
  width: min(420px, 100%);
  padding: 26px;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  background: var(--bg-secondary);
  box-shadow: var(--floating-menu-shadow);
}

.forgot-password-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 28px;
  height: 28px;
  border: 0;
  border-radius: 50%;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 17px;
  line-height: 1;
}

.forgot-password-kicker {
  margin-bottom: 8px;
  color: var(--text-tertiary);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.forgot-password-card h3 {
  margin: 0 0 10px;
  color: var(--text-primary);
  font-size: 20px;
  line-height: 1.25;
}

.forgot-password-card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.55;
}

.forgot-password-email {
  display: grid;
  gap: 4px;
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: 14px;
  background: var(--bg-tertiary);
}

.forgot-password-email span {
  color: var(--text-tertiary);
  font-size: 12px;
}

.forgot-password-email strong {
  color: var(--text-primary);
  font-size: 14px;
  overflow-wrap: anywhere;
}

.forgot-password-actions {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}

.forgot-password-primary,
.forgot-password-secondary {
  min-height: 40px;
  padding: 0 16px;
  border: 0;
  border-radius: 12px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: inherit;
  font-size: 14px;
  font-weight: 760;
  text-decoration: none;
}

.forgot-password-primary {
  background: var(--text-primary);
  color: var(--bg-primary);
}

.forgot-password-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.auth-sso-container {
  margin-top: var(--spacing-md);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.auth-sso-btn {
  width: 100%;
  min-height: 42px;
  padding: 0 14px;
  border: none;
  border-radius: var(--radius-md);
  background: var(--text-primary);
  color: var(--bg-primary);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: none;
  transition: transform 0.2s ease, opacity 0.2s ease, background 0.2s ease;
}

.auth-sso-btn:hover {
  transform: translateY(-1px);
  opacity: 0.86;
}

.auth-sso-btn-pending {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.auth-sso-btn-pending:hover {
  color: var(--text-primary);
  border-color: var(--border-dark);
}

.auth-custom-api-entry {
  margin-top: var(--spacing-md);
  text-align: center;
}

.auth-custom-api-link,
.auth-custom-api-back {
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--accent-color);
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
}

.auth-custom-api-link:hover,
.auth-custom-api-back:hover {
  text-decoration: underline;
}

.custom-api-panel {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.custom-api-panel.auth-step-visible {
  display: grid;
  max-height: 640px;
}

.custom-api-panel-heading {
  color: var(--text-primary);
  font-size: 18px;
  font-weight: 780;
}

.custom-api-panel-hint {
  margin: -4px 0 2px;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.45;
}

.custom-api-submit {
  margin-top: 2px;
}

.custom-api-back {
  justify-self: center;
  color: var(--text-secondary);
}

#customApiError {
  margin: 0;
}

body.custom-api-mode .home-action-rail,
body.custom-api-mode .chat-toolbar,
body.custom-api-mode .sidebar,
body.custom-api-mode .mobile-header,
body.custom-api-mode .mobile-overlay,
body.custom-api-mode .model-selector,
body.custom-api-mode .mobile-model-selector,
body.custom-api-mode .more-menu-container,
body.custom-api-mode .canvas-toggle-btn,
body.custom-api-mode .chat-edge-blur-top,
body.custom-api-mode .chat-edge-blur-bottom {
  display: none !important;
}

body.custom-api-mode .main-content {
  width: 100%;
}

.custom-api-exit-btn {
  display: none;
}

body.custom-api-mode .custom-api-exit-btn {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 40;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0 14px;
  border: 1px solid #0078d7;
  border-radius: 0;
  background: #ffffff;
  color: #005a9e;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}

body.custom-api-mode .custom-api-exit-btn:hover,
body.custom-api-mode .custom-api-exit-btn:focus-visible {
  background: #0078d7;
  color: #ffffff;
  outline: none;
}

body.custom-api-mode,
body.custom-api-mode .app-container,
body.custom-api-mode .main-content {
  background: #ffffff;
}

.auth-passkey-entry {
  margin-top: var(--spacing-md);
}

.auth-passkey-entry[hidden] {
  display: none;
}

.auth-passkey-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  color: var(--text-secondary);
  font-size: 12px;
}

.auth-passkey-divider::before,
.auth-passkey-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-color);
}

.auth-passkey-btn {
  width: 100%;
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  transition: transform 0.2s ease, opacity 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.auth-passkey-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  border-color: var(--border-dark);
  background: var(--input-bg);
}

.auth-passkey-btn:disabled {
  cursor: wait;
  opacity: 0.58;
}

.auth-passkey-btn:focus-visible,
.settings-passkey-card button:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

.auth-passkey-hint {
  margin: 8px 2px 0;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.45;
  text-align: center;
}

.auth-switch {
  text-align: center;
  margin-top: var(--spacing-lg);
  font-size: 13px;
  color: var(--text-secondary);
}

.auth-link {
  color: var(--accent-color);
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.2s;
}

.auth-link:hover {
  opacity: 0.8;
}

.error-message {
  padding: var(--spacing-md);
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid var(--error-color);
  border-radius: var(--radius-sm);
  color: var(--error-color);
  font-size: 13px;
  display: none;
}

.error-message.show {
  display: block;
}

.error-message.notice {
  background: var(--bg-tertiary);
  border-color: var(--border-color);
  color: var(--text-secondary);
}

/* ==================== Apple风格渐进式登录 ==================== */
/* 隐藏状态 - 初始隐藏的元素 */
.auth-step-hidden {
  display: none !important;
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  pointer-events: none;
  transition: opacity 0.4s ease, max-height 0.4s ease, margin 0.4s ease;
  margin-top: 0;
  margin-bottom: 0;
}

/* 显示状态 - 渐入动画 */
.auth-step-visible {
  display: block;
  opacity: 1;
  max-height: 200px;
  pointer-events: auto;
  margin-top: 0;
  margin-bottom: 0;
}

.form-group.auth-step-visible {
  display: flex;
}

/* 登录界面底部区域 */
.auth-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
}

.auth-footer .auth-switch {
  margin: 0;
  text-align: left;
}

/* 行内语言切换按钮 */
.auth-lang-btn-inline {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border-color);
  border-radius: 50%;
  background: transparent;
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.auth-lang-btn-inline:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-dark);
}

/* 登录卡片底部语言文字按钮行 */
.auth-lang-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  width: fit-content;
  max-width: 100%;
  margin: 14px auto 0;
  padding: 4px;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  background: var(--bg-secondary);
  box-shadow: none;
}

.auth-lang-text-btn {
  min-width: 82px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 650;
  cursor: pointer;
  transition: background 0.16s ease, color 0.16s ease, opacity 0.16s ease;
  padding: 7px 12px;
  border-radius: 999px;
  white-space: nowrap;
}

.auth-lang-text-btn:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.auth-lang-text-btn.active-lang {
  color: #000;
  background: var(--color-saturn-yellow);
  box-shadow: none;
}

/* 邮箱输入时的焦点提示 */
#authEmail:focus+.email-hint,
#authEmail:not(:placeholder-shown)+.email-hint {
  display: none;
}

/* 提交按钮特定样式 */
#submitStep.auth-step-visible .auth-btn {
  width: 100%;
}

/* ==================== 移动端适配与侧边栏滑动 ==================== */
.mobile-header {
  display: none;
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  min-height: 64px;
}

.mobile-left-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  position: relative;
  z-index: 1;
}

.mobile-center-controls {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  justify-content: center;
  align-items: center;
  width: min(220px, calc(100% - 188px));
  min-width: 0;
  pointer-events: none;
}

/* ==================== 顶栏控制按钮 ==================== */
.header-controls {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.control-btn {
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-size: 22px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: background 0.2s;
}

.control-btn:hover {
  background: var(--bg-hover);
}

.hamburger-btn {
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-size: 22px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: background 0.2s;
  position: relative;
  z-index: 1;
}

.hamburger-btn:hover {
  background: var(--bg-hover);
}

.mobile-logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  flex-shrink: 0;
}

.mobile-model-selector {
  display: none;
  position: relative;
  min-width: 132px;
  max-width: min(100%, 188px);
  height: 34px;
  padding: 0 32px 0 14px;
  border: none;
  border-radius: 999px;
  background: var(--bg-tertiary);
  background-color: var(--bg-tertiary);
  gap: 0;
  justify-content: center;
  flex: 0 1 auto;
  transition: background 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
  pointer-events: auto;
}

.mobile-model-selector:hover,
.mobile-model-selector:focus-visible,
.mobile-model-selector:active,
.mobile-model-selector.open {
  background: var(--bg-hover);
  background-color: var(--bg-hover);
}

.mobile-model-selector .model-select-label {
  display: block;
  width: 100%;
  text-align: center;
  padding-right: 2px;
}

.mobile-model-selector .model-select-arrow {
  position: absolute;
  top: 50%;
  right: 10px;
  flex-shrink: 0;
  font-size: 16px;
  --model-arrow-transform: translateY(-50%);
}

.mobile-model-selector.open .model-select-arrow {
  --model-arrow-transform: translateY(-50%) rotate(180deg);
}

[data-theme="light"] .mobile-model-selector {
  background: rgba(15, 23, 42, 0.06);
  background-color: rgba(15, 23, 42, 0.06);
}

[data-theme="light"] .mobile-model-selector:hover,
[data-theme="light"] .mobile-model-selector:focus-visible,
[data-theme="light"] .mobile-model-selector:active,
[data-theme="light"] .mobile-model-selector.open {
  background: rgba(15, 23, 42, 0.06);
  background-color: rgba(15, 23, 42, 0.06);
}

.mobile-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: calc(var(--z-sidebar) - 1);
  opacity: 0;
  transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-overlay.active {
  display: block;
  opacity: 1;
}

.mobile-overlay.dragging {
  transition: none;
}

@media (max-width: 768px) {
  :root {
    --sidebar-width: 85%;
    --spacing-lg: 14px;
    --spacing-xl: 20px;
  }

  .app-container {
    display: flex;
    flex-direction: column;
    position: relative;
    height: var(--app-height, 100dvh);
    min-height: var(--app-height, 100dvh);
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    max-width: 320px;
    transform: translateX(-100%);
    border-radius: 0 24px 24px 0;
    box-shadow: var(--floating-menu-shadow);
    overflow: hidden;
    z-index: var(--z-sidebar);
  }

  .sidebar.active {
    transform: translateX(0);
  }

  .main-content {
    position: relative;
    flex: 1;
    min-height: 0;
    width: 100%;
    height: auto;
    margin: 0;
  }

  .mobile-header {
    display: flex;
    position: relative;
    flex-shrink: 0;
    z-index: var(--z-header);
    gap: 0;
    padding-top: max(var(--spacing-md), env(safe-area-inset-top, 0px));
    padding-left: var(--spacing-lg);
    padding-right: var(--spacing-lg);
  }

  /* In an iOS home-screen app the status-bar inset is part of the header box.
     Keep the controls in the 64px toolbar below it instead of centering the
     model selector through the Dynamic Island. */
  html.ios-standalone .mobile-header {
    box-sizing: border-box;
    height: calc(64px + env(safe-area-inset-top, 0px));
    min-height: calc(64px + env(safe-area-inset-top, 0px));
    padding-top: calc(12px + env(safe-area-inset-top, 0px));
    padding-bottom: 12px;
  }

  html.ios-standalone .mobile-center-controls {
    top: calc(32px + env(safe-area-inset-top, 0px));
  }

  .mobile-left-controls {
    display: flex;
  }

  .mobile-model-selector {
    display: inline-flex;
  }

  .mobile-center-controls {
    display: flex;
  }

  .model-selector {
    display: none;
  }

  .chat-container {
    padding-top: 0;
    padding-left: 0;
    padding-right: 0;
    padding-bottom: var(--chat-content-bottom-clearance);
    height: auto;
    min-height: 0;
  }

  .input-area {
    padding-top: var(--spacing-md);
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
    padding-bottom: 0;
    background: transparent;
  }

  .input-wrapper {
    width: 100%;
    max-width: 100%;
  }

  .main-content::before,
  .main-content::after,
  .chat-edge-blur-top,
  .chat-edge-blur-bottom {
    display: block;
  }

  .welcome-icon .material-symbols-outlined {
    font-size: 48px !important;
  }

  .welcome-title {
    font-size: 22px;
  }

  .welcome-subtitle {
    font-size: 13px;
  }

  .message {
    margin-bottom: var(--spacing-lg);
  }

  .message-avatar {
    width: 28px;
    height: 28px;
  }

  .settings-content {
    margin: 0;
    border-radius: 0;
    max-height: 100vh;
    width: 100%;
  }

  .auth-box {
    margin: var(--spacing-md);
    max-width: 100%;
  }

  /* ==================== Chain of Thought UI 移动端优化 ==================== */
  .thinking-indicator {
    padding-left: 0;
    /*  修复：移除负margin，避免遮挡用户消息 */
    margin-top: 0;
  }

  .thinking-header {
    padding-left: 14px;
    /* 移动端与消息文本对齐 */
    min-height: 28px;
  }

  .thinking-preview {
    min-width: 100px;
    max-width: 200px;
    padding: 3px 10px;
  }

  .thinking-preview-text {
    font-size: 12px;
  }

  .thinking-toggle-btn {
    padding: 3px 8px;
  }

  .thinking-toggle-btn .toggle-text {
    font-size: 11px;
  }

  .thinking-toggle-btn.icon-only {
    width: 24px;
    height: 24px;
  }

  .thinking-line {
    left: 14px;
    /* 移动端头像中心 */
    top: 28px;
  }

  .thinking-content {
    padding: 0;
    padding-left: 20px;
    /* 移动端在竖线右侧 */
    font-size: 12px;
    line-height: 1.6;
  }

  /* ==================== 移动端文本换行优化 ==================== */
  .messages-list {
    max-width: 100%;
    padding: var(--spacing-lg) var(--spacing-sm) var(--spacing-md);
  }

  .message-text {
    max-width: 100%;
    word-break: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
    -webkit-hyphens: auto;
  }

  /* 内联代码在移动端换行 */
  .message-text code {
    word-break: break-all;
    white-space: pre-wrap;
  }

  /* 代码块在移动端处理 */
  .message-text pre {
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    white-space: pre-wrap;
    word-wrap: break-word;
  }

  /* 链接在移动端换行 */
  .message-text a {
    word-break: break-all;
  }

  .message-text table {
    display: table;
    width: 100%;
    min-width: 0;
    max-width: 100%;
    table-layout: fixed;
  }

  .message-text .table-wrapper {
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
  }

  .message-actions {
    width: 100%;
    margin-left: 0;
    justify-content: flex-start;
  }

  .message-meta,
  .user-message-meta {
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
    overflow: hidden;
  }
}

@media (max-width: 390px) {
  html,
  body,
  .app-container {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
  }

  .mobile-header {
    min-height: 54px;
    padding-left: 8px;
    padding-right: 8px;
  }

  .mobile-left-controls {
    gap: 4px;
  }

  .mobile-logo {
    display: none;
  }

  .header-controls {
    gap: 2px;
  }

  .control-btn,
  .hamburger-btn {
    width: 34px;
    height: 34px;
    min-width: 34px;
  }

  .mobile-center-controls {
    width: min(144px, calc(100vw - 162px));
  }

  .mobile-model-selector {
    min-width: 0;
    max-width: 144px;
    height: 32px;
    padding: 0 24px 0 10px;
  }

  .mobile-model-selector .model-select-label {
    font-size: 13px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .input-area {
    padding-left: 8px;
    padding-right: 8px;
    padding-top: 8px;
    width: 100%;
    max-width: 100vw;
    box-sizing: border-box;
  }

  .input-container {
    border-radius: 24px;
    padding: 10px;
    width: 100%;
  }

  .input-toolbar {
    min-width: 0;
    gap: 6px;
    flex-wrap: nowrap;
  }

  .toolbar-btn,
  .send-btn,
  .stop-btn {
    width: 38px;
    height: 38px;
    min-width: 38px;
  }

  .messages-list {
    padding-left: 8px;
    padding-right: 8px;
  }

  .message.assistant .message-text,
  .message-meta {
    padding-left: 12px;
  }

  .message-meta {
    gap: 4px;
    align-items: center;
  }

  .meta-badge {
    max-width: 92px;
    padding: 2px 6px;
    font-size: 10px;
  }

  .copy-btn,
  .action-btn {
    width: 26px;
    height: 26px;
    flex-basis: 26px;
    padding: 5px;
  }

  .copy-btn .material-symbols-outlined,
  .action-btn .material-symbols-outlined {
    font-size: 15px;
  }

  .user-message-meta {
    flex-wrap: wrap;
    gap: 4px;
    max-width: 100%;
  }

  .chatflow-message-input {
    font-size: 16px;
  }
}

@media (max-width: 360px) {
  .mobile-center-controls {
    width: min(128px, calc(100vw - 150px));
  }

  .mobile-model-selector {
    max-width: 128px;
    padding-left: 8px;
  }

  .message.assistant .message-text,
  .message-meta {
    padding-left: 8px;
  }

  .message-meta {
    gap: 3px;
  }

  .meta-badge {
    max-width: 78px;
    padding-left: 5px;
    padding-right: 5px;
  }

  .copy-btn,
  .action-btn {
    width: 24px;
    height: 24px;
    flex-basis: 24px;
    padding: 4px;
  }

  .copy-btn .material-symbols-outlined,
  .action-btn .material-symbols-outlined {
    font-size: 14px;
  }

  .input-container {
    padding: 9px;
  }

  .input-toolbar {
    gap: 5px;
  }

  .toolbar-btn,
  .send-btn,
  .stop-btn {
    width: 36px;
    height: 36px;
    min-width: 36px;
  }

  .settings-sidebar,
  .settings-main {
    max-width: 100%;
  }
}

.loading {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

* {
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

/* PC 端黑屏问题修复 */
@media (min-width: 769px) {
  .welcome-screen:not(.hidden) {
    display: flex !important;
  }

  #welcomeScreen:not(.hidden) {
    display: flex !important;
  }

  .chat-container {
    padding-left: 8px;
    padding-right: 8px;
    padding-bottom: var(--chat-content-bottom-clearance);
    scroll-padding-bottom: var(--chat-content-bottom-clearance);
  }

  .input-area {
    bottom: 0;
    padding-top: 0;
    padding-bottom: max(var(--spacing-md), env(safe-area-inset-bottom, 0px));
  }

  /* PC 底部不再叠加深色渐变/磨砂遮罩，避免盖住最后一条消息。 */
  .main-content::after,
  .main-content .chat-edge-blur-bottom {
    display: none;
  }

  .messages-list,
  .input-wrapper {
    max-width: min(1120px, calc(100% - 16px));
  }
}

@media (min-width: 769px) and (orientation: landscape) {
  .messages-list,
  .input-wrapper {
    max-width: min(calc((100vw - var(--sidebar-width)) * 0.72), calc(100% - 16px));
  }
}

.scroll-resume-btn {
  position: absolute;
  right: 12px;
  bottom: calc(100% + 12px);
  z-index: 24;
  width: 42px;
  height: 42px;
  border: none;
  background: rgba(24, 31, 43, 0.92);
  color: #f5f7fb;
  border-radius: 999px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px) scale(0.96);
  transition: opacity 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.scroll-resume-btn:hover {
  background: rgba(39, 51, 70, 0.96);
}

.scroll-resume-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px rgba(148, 163, 184, 0.28), 0 14px 32px rgba(0, 0, 0, 0.22);
}

.scroll-resume-btn .scroll-resume-icon {
  width: 20px;
  height: 20px;
}

.scroll-resume-btn.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.scroll-resume-btn.hidden {
  opacity: 0;
  pointer-events: none;
}

@media (max-width: 768px) {
  .scroll-resume-btn {
    display: none !important;
  }
}

*::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

*::-webkit-scrollbar-track {
  background: transparent;
}

*::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

*::-webkit-scrollbar-thumb:hover {
  background: var(--border-dark);
}

/* ==================== 思考预算控制 ==================== */
.thinking-controls {
  display: flex;
  gap: 4px;
  align-items: center;
}

.thinking-budget-modal {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 0;
  z-index: 200;
  animation: budgetSlideUp 0.2s ease-out;
}

@keyframes budgetSlideUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.thinking-budget-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-lg);
  min-width: 280px;
}

.thinking-budget-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.thinking-budget-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.thinking-budget-value {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-color);
}

.thinking-budget-description {
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.thinking-budget-slider-container {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.thinking-budget-label {
  font-size: 11px;
  color: var(--text-tertiary);
  flex-shrink: 0;
}

.thinking-budget-slider {
  flex: 1;
  height: 4px;
  border-radius: 2px;
  background: var(--border-color);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.thinking-budget-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: var(--radius-full);
  background: var(--accent-color);
  cursor: pointer;
  transition: all 0.2s;
}

.thinking-budget-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.thinking-budget-slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border: none;
  border-radius: var(--radius-full);
  background: var(--accent-color);
  cursor: pointer;
}

/* ==================== 推理按钮特殊圆角 ==================== */
#thinkingBtn {
  /* 圆角顺序：左上 右上 右下 左下 */
  border-radius: 50px 50px 50px 50px;
  /* 推理按钮 */
}

/* ==================== 对话索引导航器 ==================== */
.chat-index-navigator {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 8px 12px;
}

.chat-index-navigator.visible {
  opacity: 1;
  pointer-events: auto;
}

.chat-index-navigator.hidden {
  opacity: 0;
  pointer-events: none;
}

/* 上下导航按钮 - 默认隐藏且透明 */
.chat-index-nav-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  position: relative;
  opacity: 0;
  pointer-events: none;
}

/* 悬浮整个导航区域时显示箭头 */
.chat-index-navigator:hover .chat-index-nav-btn {
  opacity: 1;
  pointer-events: auto;
}

/* 悬浮箭头按钮时显示圆形背景 */
.chat-index-nav-btn:hover {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.chat-index-nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.chat-index-nav-btn:disabled:hover {
  background: transparent;
  border: none;
}

.chat-index-nav-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* 时间轴容器 */
.chat-index-timeline {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  /* 横线右对齐 */
  gap: 6px;
  padding: 8px 0;
  max-height: 60vh;
  overflow-y: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.chat-index-timeline::-webkit-scrollbar {
  display: none;
}

/* 时间轴横线 - 三档宽度 */
.chat-index-line {
  width: 16px;
  /* 默认中档（AI） */
  height: 2px;
  background: var(--text-tertiary);
  border-radius: 1px;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

/* 用户消息 - 短线 */
.chat-index-line.user-line {
  width: 8px;
}

/* AI消息 - 中线 */
.chat-index-line.assistant-line {
  width: 16px;
}

.chat-index-line::before {
  content: '';
  position: absolute;
  top: -10px;
  left: -12px;
  right: -12px;
  bottom: -10px;
  /* 透明扩展区域 */
}

/* 悬浮/选中/当前 - 长线（最长档） */
.chat-index-line:hover,
.chat-index-line.active,
.chat-index-line.touching {
  width: 28px;
  background: var(--text-primary);
}

/* 悬浮提示框 */
.chat-index-tooltip {
  position: fixed;
  padding: 10px 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 400;
  color: var(--text-primary);
  box-shadow: var(--shadow-lg);
  z-index: 1001;
  pointer-events: none;
  max-width: 280px;
  white-space: normal;
  word-wrap: break-word;
  line-height: 1.4;
  opacity: 0;
  transform: translateX(10px);
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.chat-index-tooltip.visible {
  opacity: 1;
  transform: translateX(0);
}

/* 按钮提示 */
.chat-index-nav-tooltip {
  position: fixed;
  padding: 8px 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  box-shadow: var(--shadow-lg);
  z-index: 1001;
  pointer-events: none;
  white-space: nowrap;
  opacity: 0;
  transform: translateX(10px);
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.chat-index-nav-tooltip.visible {
  opacity: 1;
  transform: translateX(0);
}

/* 响应式 - 移动端优化 */
@media (max-width: 768px) {
  .chat-index-navigator {
    right: 4px;
    padding: 4px 8px;
    gap: 2px;
  }

  .chat-index-nav-btn {
    width: 28px;
    height: 28px;
  }

  .chat-index-nav-btn svg {
    width: 16px;
    height: 16px;
  }

  .chat-index-timeline {
    gap: 4px;
    padding: 4px 0;
  }

  .chat-index-line {
    height: 2px;
  }

  .chat-index-line.user-line {
    width: 6px;
  }

  .chat-index-line.assistant-line {
    width: 12px;
  }

  .chat-index-line:hover,
  .chat-index-line.active,
  .chat-index-line.touching {
    width: 20px;
  }
}

/* 浅色主题适配 */
[data-theme="light"] .chat-index-nav-btn:hover {
  background: var(--bg-secondary);
  border-color: var(--border-color);
}

[data-theme="light"] .chat-index-tooltip,
[data-theme="light"] .chat-index-nav-tooltip {
  background: var(--bg-primary);
  border-color: var(--border-color);
}

/* ==================== 更多菜单 ==================== */
.more-menu-container {
  position: relative;
}

.more-menu {
  position: fixed;
  width: min(320px, calc(100vw - 32px));
  min-width: min(280px, calc(100vw - 32px));
  max-width: calc(100vw - 32px);
  box-sizing: border-box;
  background: var(--bg-secondary);
  border: none;
  border-radius: 20px;
  box-shadow: var(--floating-menu-shadow);
  z-index: 4000;
  overflow: hidden auto;
  display: block;
  padding: 8px;
  max-height: min(76vh, 640px);
  pointer-events: none;
  visibility: hidden;
  opacity: 0;
  transform: translateY(8px) scale(0.985);
  transform-origin: var(--menu-origin-x, left) var(--menu-origin-y, bottom);
  scrollbar-width: none;
  will-change: opacity, transform;
  transition:
    opacity var(--menu-motion-duration) var(--menu-motion-easing),
    transform var(--menu-motion-duration) var(--menu-motion-easing),
    visibility 0s linear var(--menu-motion-duration);
}

.more-menu::-webkit-scrollbar {
  width: 0;
  height: 0;
}

.more-menu.active {
  visibility: visible;
  pointer-events: auto;
  opacity: 1;
  transform: translateY(0) scale(1);
  transition-delay: 0s;
}

.more-menu.closing {
  display: block;
  pointer-events: none;
}

.more-menu-item {
  width: 100%;
  min-height: 44px;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border: 0;
  border-radius: 12px;
  background: transparent;
  cursor: pointer;
  transition: background 0.15s;
  color: var(--text-primary);
  font: inherit;
  font-size: 14px;
  text-align: left;
  appearance: none;
  touch-action: manipulation;
}

.more-menu-item:hover,
.more-menu-item:focus-visible {
  background: var(--bg-hover);
}

.more-menu-item-static {
  padding: 0;
  cursor: default;
}

.more-menu-item-static:hover {
  background: transparent;
}

.more-menu-item:focus-visible,
.reasoning-profile-header:focus-visible,
.research-mode-header:focus-visible {
  outline: 2px solid var(--focus-ring-color);
  outline-offset: -2px;
}

.more-menu > .more-menu-item ~ .more-menu-item {
  margin-top: 4px;
}

.more-menu-item-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.more-menu-item-icon svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.more-menu-item-text {
  flex: 1;
  min-width: 0;
  white-space: nowrap;
}

.reasoning-profile-item,
.research-mode-item {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
  min-width: 0;
  max-height: 520px;
  overflow: hidden;
  transition:
    max-height var(--menu-motion-duration) var(--menu-motion-easing),
    opacity var(--menu-motion-duration) var(--menu-motion-easing),
    transform var(--menu-motion-duration) var(--menu-motion-easing),
    margin var(--menu-motion-duration) var(--menu-motion-easing),
    gap var(--menu-motion-duration) var(--menu-motion-easing);
}

.reasoning-profile-item.menu-subpanel-hidden {
  max-height: 0;
  opacity: 0;
  transform: translateY(-4px);
  margin-top: -8px;
  pointer-events: none;
}

.reasoning-profile-header,
.research-mode-header {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  min-height: 44px;
  box-sizing: border-box;
  padding: 10px 12px;
  border-radius: 12px;
  cursor: pointer;
  transition: background 0.15s;
}

.reasoning-profile-header:hover,
.reasoning-profile-header:focus-visible,
.research-mode-header:hover,
.research-mode-header:focus-visible {
  background: var(--bg-hover);
}

.reasoning-profile-header .more-menu-item-text,
.research-mode-header .more-menu-item-text {
  white-space: nowrap;
}

.reasoning-profile-slider-wrap,
.research-mode-slider-wrap {
  width: 100%;
  box-sizing: border-box;
  min-width: 0;
  padding-left: 44px;
  padding-right: 12px;
  max-height: 160px;
  opacity: 1;
  transform: translateY(0);
  overflow: hidden;
  transition:
    max-height var(--menu-motion-duration) var(--menu-motion-easing),
    opacity var(--menu-motion-duration) var(--menu-motion-easing),
    transform var(--menu-motion-duration) var(--menu-motion-easing),
    padding var(--menu-motion-duration) var(--menu-motion-easing),
    margin var(--menu-motion-duration) var(--menu-motion-easing);
}

.more-menu-switch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  padding: 0;
  border: none;
  background: transparent;
  color: inherit;
  cursor: pointer;
}

.more-menu-switch:focus-visible {
  outline: 2px solid var(--text-tertiary);
  outline-offset: 3px;
}

.research-mode-item.research-mode-off {
  gap: 0;
}

.research-mode-item.research-mode-off .research-mode-slider-wrap,
.research-mode-item.research-mode-off .research-model-config {
  max-height: 0;
  opacity: 0;
  transform: translateY(-4px);
  margin-top: 0;
  padding-top: 0;
  pointer-events: none;
}

.research-mode-item.research-mode-off .research-model-config {
  border-top-width: 0;
}

.research-model-config {
  display: grid;
  gap: 8px;
  margin-top: 12px;
  padding-top: 10px;
  padding-left: 44px;
  padding-right: 12px;
  padding-bottom: 12px;
  border-top: 1px solid var(--border-color);
  box-sizing: border-box;
  min-width: 0;
  max-width: 100%;
  max-height: 320px;
  opacity: 1;
  transform: translateY(0);
  overflow: hidden;
  transition:
    max-height var(--menu-motion-duration) var(--menu-motion-easing),
    opacity var(--menu-motion-duration) var(--menu-motion-easing),
    transform var(--menu-motion-duration) var(--menu-motion-easing),
    padding var(--menu-motion-duration) var(--menu-motion-easing),
    margin var(--menu-motion-duration) var(--menu-motion-easing);
}

.research-model-config-label {
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 650;
}

.research-model-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-width: 0;
  max-width: 100%;
}

.research-model-chip {
  min-height: 28px;
  max-width: 100%;
  padding: 0 9px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 650;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.research-model-chip.selected {
  background: var(--text-primary);
  border-color: var(--text-primary);
  color: var(--bg-primary);
}

.research-master-select {
  width: 100%;
  height: 34px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  padding: 0 9px;
  font-size: 12px;
  font-weight: 650;
}

.toolbar-btn,
.model-select-custom,
.model-menu-item {
  touch-action: manipulation;
}

.reasoning-profile-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 999px;
  border: none;
  outline: none;
  cursor: pointer;
  background:
    radial-gradient(circle at 0 50%, var(--text-secondary) 0 2px, transparent 2.5px),
    radial-gradient(circle at 33.3333% 50%, var(--text-secondary) 0 2px, transparent 2.5px),
    radial-gradient(circle at 66.6667% 50%, var(--text-secondary) 0 2px, transparent 2.5px),
    radial-gradient(circle at 100% 50%, var(--text-secondary) 0 2px, transparent 2.5px),
    linear-gradient(to right,
      var(--accent-color) 0%,
      var(--accent-color) var(--slider-progress, 0%),
      var(--border-color) var(--slider-progress, 0%),
      var(--border-color) 100%);
}

.reasoning-profile-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--text-primary);
  border: 2px solid var(--accent-color);
  box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.2);
}

.reasoning-profile-slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--text-primary);
  border: 2px solid var(--accent-color);
}

.reasoning-profile-slider::-moz-range-track {
  height: 4px;
  border-radius: 999px;
  border: none;
  background: var(--border-color);
}

.research-mode-slider {
  background:
    radial-gradient(circle at 0 50%, var(--text-secondary) 0 2px, transparent 2.5px),
    radial-gradient(circle at 100% 50%, var(--text-secondary) 0 2px, transparent 2.5px),
    linear-gradient(to right,
      var(--accent-color) 0%,
      var(--accent-color) var(--slider-progress, 0%),
      var(--border-color) var(--slider-progress, 0%),
      var(--border-color) 100%);
}

.reasoning-profile-labels {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-secondary);
  user-select: none;
}

.reasoning-profile-labels span {
  white-space: nowrap;
}

.more-menu-item-toggle {
  width: 36px;
  height: 20px;
  background: var(--border-color);
  border-radius: 10px;
  position: relative;
  transition: background 0.2s;
  flex-shrink: 0;
}

.more-menu-item-toggle.active {
  background: var(--accent-color);
}

.more-menu-item-toggle::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: var(--text-primary);
  border-radius: 50%;
  transition: transform 0.2s, background 0.2s;
}

.more-menu-item-toggle.active::after {
  transform: translateX(16px);
  background: var(--bg-primary);
}

.more-menu-item-toggle.disabled {
  opacity: 0.45;
  pointer-events: none;
}

.more-menu-item.is-disabled {
  opacity: 0.75;
}

/* 浅色主题下开关圆点颜色适配 */
[data-theme="light"] .more-menu-item-toggle::after {
  background: var(--text-primary);
}

[data-theme="light"] .more-menu-item-toggle.active::after {
  background: var(--bg-primary);
}

.more-menu-divider {
  height: 1px;
  background: var(--bg-hover);
  margin: 4px 0;
}

/* ==================== 工具栏按钮悬浮提示 ==================== */

.tooltip-popup {
  position: fixed;
  padding: 6px 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-primary);
  box-shadow: var(--shadow-lg);
  z-index: 999;
  pointer-events: none;
  animation: tooltipFadeInOut 1s ease-out forwards;
}

@keyframes tooltipFadeInOut {
  0% {
    opacity: 0;
    transform: translateY(10px);
  }

  10% {
    opacity: 1;
    transform: translateY(0);
  }

  90% {
    opacity: 1;
    transform: translateY(0);
  }

}

/* ==================== AI Smooth Fusion 流式动画 ==================== */

.streaming-char {
  display: inline;
  animation: none !important;
  filter: none !important;
  color: inherit;
}

/* 浅色主题适配 */
[data-theme="light"] .streaming-char {
  --fusion-highlight-color: #6366f1;
}

/* Mermaid Inline Preview & Loading */
.mermaid-inline-wrapper {
  margin: 16px 0;
  padding: 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  position: relative;
  min-height: 100px;
  max-width: 800px;
}

.mermaid-inline-wrapper.rendered {
  min-height: unset;
}

.mermaid-preview-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: min-content;
}

.mermaid-preview-container svg {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
}

.mermaid-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100px;
  color: var(--text-tertiary);
  font-size: 13px;
}

.mermaid-loading span {
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 0.4;
  }

  50% {
    opacity: 1;
  }
}

/* ==================== Mermaid 内联工具栏 ==================== */
.mermaid-container {
  position: relative;
}

body > div[id^="dmermaid-"],
body > svg[id^="mermaid-"][aria-roledescription="error"] {
  display: none !important;
}

.mermaid-toolbar {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  gap: 4px;
  padding: 4px;
  background: rgba(0, 0, 0, 0.7);
  border-radius: 6px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  z-index: 10;
}

.mermaid-container:hover .mermaid-toolbar {
  opacity: 1;
  visibility: visible;
}

.mermaid-toolbar button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: #fff;
  cursor: pointer;
  transition: background 0.15s ease;
}

.mermaid-toolbar button:hover {
  background: rgba(255, 255, 255, 0.2);
}

.mermaid-toolbar button svg {
  width: 16px;
  height: 16px;
}

/* ==================== Mermaid 全屏模态框 ==================== */
.mermaid-fullscreen-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.95);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mermaid-fullscreen-modal.active {
  opacity: 1;
  visibility: visible;
}

/* 全屏顶部工具栏 */
.mermaid-fullscreen-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: rgba(30, 30, 30, 0.9);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  flex-shrink: 0;
}

.mermaid-fullscreen-toolbar-left,
.mermaid-fullscreen-toolbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.mermaid-fullscreen-toolbar-center {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mermaid-fullscreen-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  cursor: pointer;
  transition: all 0.2s ease;
}

.mermaid-fullscreen-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: scale(1.05);
}

.mermaid-fullscreen-btn:active {
  transform: scale(0.95);
}

.mermaid-fullscreen-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  stroke: currentColor;
}

.mermaid-fullscreen-zoom-level {
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
  font-weight: 500;
  min-width: 50px;
  text-align: center;
}

/* 全屏内容区域 */
.mermaid-fullscreen-content {
  flex: 1;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mermaid-fullscreen-wrapper {
  position: absolute;
  transform-origin: center center;
  cursor: grab;
  transition: transform 0.1s ease;
  padding: 40px;
}

.mermaid-fullscreen-wrapper.dragging {
  cursor: grabbing;
  transition: none;
}

.mermaid-fullscreen-wrapper svg {
  max-width: none;
  max-height: none;
}

/* 全屏代码视图 */
.mermaid-fullscreen-code {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: #1e1e1e;
  padding: 20px;
  overflow: auto;
  display: none;
}

.mermaid-fullscreen-code.active {
  display: block;
}

.mermaid-fullscreen-code pre {
  margin: 0;
  color: #9cdcfe;
  font-family: 'Consolas', 'Monaco', monospace;
  font-size: 14px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-all;
}

/* 响应式 - 移动端 */
@media (max-width: 768px) {
  .mermaid-fullscreen-toolbar {
    padding: 10px 12px;
  }

  .mermaid-fullscreen-btn {
    width: 36px;
    height: 36px;
  }

  .mermaid-fullscreen-btn svg {
    width: 18px;
    height: 18px;
  }

  .mermaid-fullscreen-zoom-level {
    font-size: 12px;
    min-width: 40px;
  }

  .mermaid-fullscreen-wrapper {
    padding: 20px;
  }

  .mermaid-fullscreen-code {
    padding: 12px;
  }

  .mermaid-fullscreen-code pre {
    font-size: 12px;
  }
}

/* ==================== 管理员与会员面板样式 ==================== */
/* ==================== 管理员模态框通用样式 ==================== */
.admin-modal-overlay,
.admin-panel-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.admin-modal-overlay.active,
.admin-panel-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ==================== 管理员登录框 ==================== */
.admin-login-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 32px;
  width: 90%;
  max-width: 400px;
  position: relative;
}

.admin-login-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.admin-login-header h2 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.admin-input-group {
  margin-bottom: 16px;
}

.admin-input-group label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.admin-input-group input {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 14px;
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.2s;
}

.admin-input-group input:focus {
  border-color: var(--focus-border-color);
}

.admin-login-error {
  color: #ff5252;
  font-size: 13px;
  min-height: 20px;
  margin-bottom: 8px;
}

.admin-login-btn {
  width: 100%;
  padding: 12px;
  background: var(--color-saturn-yellow);
  color: #000;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s;
}

.admin-login-btn:hover {
  opacity: 0.9;
}

.admin-password-modal {
  z-index: 10004;
}

.admin-password-box {
  position: relative;
  width: min(420px, 92vw);
  padding: 28px;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  background: var(--bg-secondary);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

.admin-password-header {
  margin-bottom: 18px;
}

.admin-password-header h3 {
  margin: 0 0 6px;
  color: var(--text-primary);
  font-size: 18px;
  font-weight: 700;
}

.admin-password-header p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 13px;
  overflow-wrap: anywhere;
}

.admin-password-error {
  min-height: 20px;
  margin: 0 0 10px;
  color: #ff5252;
  font-size: 13px;
}

.admin-close-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 4px;
  display: flex;
  transition: color 0.2s;
}

.admin-close-btn:hover {
  color: var(--text-primary);
}

.admin-close-btn svg {
  width: 20px;
  height: 20px;
}

/* ==================== 管理面板 ==================== */
.admin-panel {
  background: var(--bg-primary);
  width: 95%;
  max-width: 1200px;
  height: 90vh;
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.admin-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.admin-panel-header h1 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.admin-panel-tabs {
  display: flex;
  gap: 4px;
  padding: 12px 24px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.admin-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}

.admin-tab:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.admin-tab.active {
  background: var(--color-saturn-yellow);
  color: #000;
}

.admin-tab svg {
  width: 18px;
  height: 18px;
}

.admin-panel-content {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

.admin-tab-content {
  display: none;
}

.admin-tab-content.active {
  display: block;
}

/* ==================== 统计卡片 ==================== */
.admin-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.admin-stat-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
}

.admin-stat-card.loading {
  min-height: 80px;
}

.admin-stat-skeleton {
  width: 100%;
  height: 40px;
  background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-secondary) 50%, var(--bg-tertiary) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 8px;
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }

  100% {
    background-position: -200% 0;
  }
}

.admin-stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.admin-stat-icon svg {
  width: 24px;
  height: 24px;
}

.admin-stat-icon.users {
  background: rgba(33, 150, 243, 0.15);
  color: #2196F3;
}

.admin-stat-icon.sessions {
  background: rgba(76, 175, 80, 0.15);
  color: #4CAF50;
}

.admin-stat-icon.messages {
  background: rgba(156, 39, 176, 0.15);
  color: #9C27B0;
}

.admin-stat-icon.today {
  background: rgba(245, 213, 71, 0.15);
  color: var(--color-saturn-yellow);
}

.admin-stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
}

.admin-stat-label {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ==================== 图表区域 ==================== */
.admin-charts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

@media (max-width: 768px) {
  .admin-charts-row {
    grid-template-columns: 1fr;
  }
}

.admin-chart-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
}

.admin-chart-card h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 16px 0;
}

.admin-chart {
  min-height: 150px;
}

.admin-no-data {
  color: var(--text-tertiary);
  text-align: center;
  padding: 40px;
}

/* 条形图 */
.admin-bar-chart {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 120px;
}

.admin-bar-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
}

.admin-bar {
  width: 100%;
  background: var(--color-saturn-yellow);
  border-radius: 4px 4px 0 0;
  min-height: 2px;
  transition: height 0.3s;
}

.admin-bar-label {
  font-size: 10px;
  color: var(--text-tertiary);
  margin-top: 4px;
  transform: rotate(-45deg);
  white-space: nowrap;
}

/* 模型使用列表 */
.admin-model-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.admin-model-item {
  display: flex;
  align-items: center;
  gap: 10px;
}

.admin-model-bar-bg {
  flex: 1;
  height: 8px;
  background: var(--bg-tertiary);
  border-radius: 4px;
  overflow: hidden;
}

.admin-model-bar {
  height: 100%;
  border-radius: 4px;
  transition: width 0.3s;
}

.admin-model-name {
  font-size: 12px;
  color: var(--text-secondary);
  min-width: 100px;
}

.admin-model-count {
  font-size: 12px;
  color: var(--text-tertiary);
  min-width: 80px;
  text-align: right;
}

/* 活跃用户排行 */
.admin-top-users-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.admin-top-user-item {
  display: flex;
  align-items: center;
  gap: 10px;
}

.admin-top-user-rank {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-saturn-yellow);
  min-width: 30px;
}

.admin-top-user-name {
  font-size: 13px;
  color: var(--text-primary);
  min-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.admin-top-user-bar-bg {
  flex: 1;
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  overflow: hidden;
}

.admin-top-user-bar {
  height: 100%;
  background: var(--color-saturn-yellow);
  border-radius: 3px;
}

.admin-top-user-count {
  font-size: 12px;
  color: var(--text-secondary);
  min-width: 40px;
  text-align: right;
}

/* ==================== 表格 ==================== */
.admin-table-container {
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.admin-table th,
.admin-table td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.admin-table th {
  background: var(--bg-secondary);
  font-weight: 600;
  color: var(--text-secondary);
}

.admin-table td {
  color: var(--text-primary);
}

.admin-table tr:hover {
  background: var(--bg-secondary);
}

.admin-msg-content {
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.admin-loading,
.admin-empty-state,
.admin-error {
  padding: 18px;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
}

.admin-error {
  color: #ef4444;
}

.admin-model-switch-list {
  display: grid;
  gap: 10px;
}

.admin-model-switch-note {
  padding: 12px 14px;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 13px;
}

.admin-model-switch-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
}

.admin-model-switch-name {
  font-weight: 600;
  color: var(--text-primary);
}

.admin-model-switch-meta {
  margin-top: 4px;
  font-size: 12px;
  color: var(--text-secondary);
}

.admin-limits-panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.admin-limits-section {
  padding: 16px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--bg-secondary);
}

.admin-limits-section h4 {
  margin: 0 0 12px;
  font-size: 15px;
  color: var(--text-primary);
}

.admin-limits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 12px;
}

.admin-limit-field,
.admin-limit-switch {
  display: flex;
  flex-direction: column;
  gap: 7px;
  font-size: 13px;
  color: var(--text-secondary);
}

.admin-limit-field input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--bg-primary);
  color: var(--text-primary);
}

.admin-limit-field small {
  color: var(--text-muted);
}

.admin-limit-switch {
  min-height: 64px;
  justify-content: center;
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--bg-primary);
}

.admin-limit-switch input {
  width: 18px;
  height: 18px;
}

.admin-switch {
  position: relative;
  display: inline-flex;
  width: 48px;
  height: 28px;
  flex: 0 0 auto;
}

.admin-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.admin-switch span {
  position: absolute;
  inset: 0;
  cursor: pointer;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  transition: background 0.18s ease, border-color 0.18s ease;
}

.admin-switch span::before {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  left: 2px;
  top: 2px;
  background: var(--text-secondary);
  border-radius: 50%;
  transition: transform 0.18s ease, background 0.18s ease;
}

.admin-switch input:checked + span {
  background: rgba(245, 185, 66, 0.24);
  border-color: var(--color-saturn-yellow);
}

.admin-switch input:checked + span::before {
  transform: translateX(20px);
  background: var(--color-saturn-yellow);
}

.admin-feedback-filters select {
  min-height: 36px;
  padding: 0 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
}

.feedback-rating-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 46px;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.feedback-rating-badge.positive {
  background: rgba(34, 197, 94, 0.14);
  color: #22c55e;
}

.feedback-rating-badge.negative {
  background: rgba(239, 68, 68, 0.14);
  color: #ef4444;
}

.admin-feedback-comment {
  max-width: 240px;
  white-space: normal;
  line-height: 1.45;
}

.admin-session-id {
  font-family: monospace;
  font-size: 11px;
  color: var(--text-tertiary);
}

.admin-action-btn {
  padding: 4px 10px;
  border: none;
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
  margin-right: 4px;
}

.admin-action-btn.view {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.admin-action-btn.delete {
  background: rgba(255, 82, 82, 0.15);
  color: #ff5252;
}

.admin-action-btn:hover {
  opacity: 0.8;
}

.admin-back-btn {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  margin: 12px 0;
  font-size: 13px;
}

/* ==================== 搜索栏 ==================== */
.admin-search-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.admin-search-bar input {
  flex: 1;
  padding: 10px 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 13px;
  outline: none;
}

.admin-search-bar input:focus {
  border-color: var(--focus-border-color);
}

.admin-search-bar button {
  padding: 10px 20px;
  background: var(--color-saturn-yellow);
  color: #000;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
}

/* ==================== 会员徽章 ==================== */
.membership-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
}

.membership-badge.free {
  background: rgba(150, 150, 150, 0.2);
  color: #aaa;
}

.membership-badge.pro {
  background: rgba(33, 150, 243, 0.2);
  color: #2196F3;
}

.membership-badge.max {
  background: rgba(245, 213, 71, 0.2);
  color: var(--color-saturn-yellow);
}

/* ==================== 用户详情弹窗 ==================== */
.user-detail-modal {
  z-index: 10002;
}

.user-detail-container {
  background: var(--bg-primary);
  width: 95%;
  max-width: 1100px;
  height: 85vh;
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.user-detail-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.user-detail-header h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.user-detail-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}

.user-detail-loading,
.user-detail-error {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  font-size: 16px;
  color: var(--text-secondary);
}

.user-detail-error {
  color: var(--error-color);
}

.user-detail-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* 用户信息卡片 */
.user-info-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
}

.user-info-card h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 16px 0;
}

.user-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}

.user-info-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 16px;
}

.user-info-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 14px;
  background: var(--bg-tertiary);
  border-radius: 8px;
}

.user-info-item .label {
  font-size: 11px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.user-info-item .value {
  font-size: 14px;
  color: var(--text-primary);
  font-weight: 500;
}

/* 会话列表和消息区域布局 */
.user-sessions-area {
  display: flex;
  gap: 16px;
  flex: 1;
  min-height: 400px;
}

.user-sessions-list {
  width: 280px;
  flex-shrink: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.user-sessions-list h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  padding: 14px 16px;
  margin: 0;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.sessions-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}

.no-sessions {
  padding: 20px;
  text-align: center;
  color: var(--text-tertiary);
  font-size: 13px;
}

.ud-session-item {
  padding: 12px 14px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  margin-bottom: 4px;
}

.ud-session-item:hover {
  background: var(--bg-hover);
}

.ud-session-item.active {
  background: var(--color-saturn-yellow);
  color: #000;
}

.ud-session-item.active .ud-session-meta {
  color: rgba(0, 0, 0, 0.6);
}

.ud-session-title {
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ud-session-meta {
  font-size: 11px;
  color: var(--text-tertiary);
  display: flex;
  gap: 10px;
}

/* 消息查看区域 - 限定在用户详情弹窗内 */
.user-detail-modal .user-messages-area {
  flex: 1;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.user-detail-modal .ud-messages-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-tertiary);
  gap: 12px;
}

.user-detail-modal .ud-messages-placeholder svg {
  opacity: 0.3;
}

.user-detail-modal .ud-messages-placeholder p {
  margin: 0;
  font-size: 14px;
}

.user-detail-modal .ud-messages-loading,
.user-detail-modal .ud-messages-error {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  font-size: 14px;
  color: var(--text-secondary);
}

.user-detail-modal .ud-messages-error {
  color: var(--error-color);
}

.user-detail-modal .ud-messages-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.user-detail-modal .ud-messages-header h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.user-detail-modal .ud-messages-count {
  font-size: 12px;
  color: var(--text-tertiary);
}

.user-detail-modal .ud-messages-list {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
}

.user-detail-modal .ud-message-item {
  margin-bottom: 16px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.user-detail-modal .ud-message-item.user-msg {
  background: var(--bg-tertiary);
}

.user-detail-modal .ud-message-item.ai-msg {
  background: var(--bg-primary);
}

.user-detail-modal .ud-message-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-color);
  font-size: 12px;
}

.user-detail-modal .ud-message-role {
  font-weight: 600;
  color: var(--text-primary);
}

.user-detail-modal .ud-message-time {
  color: var(--text-tertiary);
}

.user-detail-modal .ud-message-model {
  font-size: 11px;
  padding: 2px 8px;
  background: var(--bg-hover);
  border-radius: 4px;
  color: var(--text-secondary);
}

.user-detail-modal .ud-message-content {
  padding: 12px 14px;
  cursor: pointer;
  max-height: 200px;
  overflow-y: auto;
  transition: max-height 0.3s ease;
}

.user-detail-modal .ud-message-content.expanded {
  max-height: none;
}

.user-detail-modal .ud-message-content pre {
  margin: 0;
  font-family: 'Consolas', 'Monaco', monospace;
  font-size: 13px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text-primary);
}

.user-detail-modal .ud-message-reasoning {
  padding: 8px 14px;
  border-top: 1px dashed var(--border-color);
}

.user-detail-modal .ud-message-reasoning summary {
  cursor: pointer;
  font-size: 12px;
  color: var(--text-secondary);
  padding: 4px 0;
}

.user-detail-modal .ud-message-reasoning pre {
  margin-top: 10px;
  font-size: 12px;
  color: var(--text-tertiary);
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 200px;
  overflow-y: auto;
}

/* 用户详情弹窗响应式布局 */
@media (max-width: 768px) {
  .user-detail-modal .user-detail-container {
    width: 100%;
    height: 100vh;
    border-radius: 0;
  }

  .user-detail-modal .user-sessions-area {
    flex-direction: column;
  }

  .user-detail-modal .user-sessions-list {
    width: 100%;
    max-height: 200px;
  }

  .user-detail-modal .user-info-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ==================== 会员计划弹窗 ==================== */
.membership-plans-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.58);
  backdrop-filter: blur(10px);
  z-index: 10001;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.28s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.28s ease;
}

.membership-plans-overlay.active {
  opacity: 1;
  visibility: visible;
}

.membership-plans-box {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  width: min(1040px, calc(100vw - 32px));
  max-width: none;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: var(--floating-menu-shadow);
}

.membership-plans-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 26px 32px 18px;
  border-bottom: 1px solid var(--border-color);
}

.membership-plans-header h2 {
  font-size: 28px;
  font-weight: 760;
  color: var(--text-primary);
  margin: 0;
}

.membership-plans-content {
  padding: 20px 32px 32px;
}

.membership-plans-summary {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.membership-plans-summary > div,
.membership-plans-summary > p {
  min-height: 42px;
  margin: 0;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
}

.membership-plans-summary strong {
  color: var(--text-primary);
  font-size: 14px;
}

.membership-plans-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 24px;
}

.membership-plan-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 18px;
  padding: 26px 24px;
  text-align: left;
  min-height: 390px;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.membership-plan-card:hover {
  border-color: color-mix(in srgb, var(--text-primary) 28%, var(--border-color));
  transform: translateY(-1px);
}

.membership-plan-card.current {
  border-color: var(--color-saturn-yellow);
  box-shadow: 0 0 0 1px rgba(255, 193, 7, 0.35);
}

.membership-plan-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 24px;
}

.membership-current-pill {
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 700;
}

.membership-plan-name {
  font-size: 25px;
  font-weight: 760;
  margin-bottom: 0;
  color: var(--text-primary);
}

.membership-plan-card.free .membership-plan-name {
  color: #aaa;
}

.membership-plan-card.pro .membership-plan-name {
  color: #2196F3;
}

.membership-plan-card.max .membership-plan-name {
  color: var(--color-saturn-yellow);
}

.membership-plan-price {
  font-size: 30px;
  font-weight: 760;
  color: var(--text-primary);
  margin-bottom: 8px;
  letter-spacing: 0;
}

.membership-plan-price-points {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.membership-plan-price small {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 400;
}

.membership-plan-points {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.membership-plan-features {
  display: grid;
  gap: 14px;
  margin-top: 22px;
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.45;
}

.membership-plan-feature {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 10px;
  align-items: start;
}

.membership-feature-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  font-weight: 760;
  line-height: 1;
}

.membership-plan-action {
  width: 100%;
  margin-top: 0;
  border: none;
  border-radius: 999px;
  min-height: 46px;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  background: var(--bg-secondary);
  color: var(--text-primary);
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.membership-plan-card.pro .membership-plan-action {
  background: #111111;
  color: #ffffff;
  box-shadow: none;
}

.membership-plan-card.max .membership-plan-action {
  background: var(--color-saturn-yellow);
  color: #111111;
  box-shadow: none;
}

.membership-plan-action:hover:not(:disabled) {
  transform: translateY(-1px);
}

.membership-plan-action:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  box-shadow: none;
}

.membership-divider {
  height: 1px;
  background: var(--border-color);
  margin: 20px 0;
}

.membership-task-section,
.settings-task-section {
  background: transparent;
  border: 0;
  border-radius: 0;
  padding: 0;
  margin: 0 0 18px;
}

.membership-model-pricing {
  margin-top: 18px;
  padding: 14px;
  background: var(--settings-card-bg);
  border-radius: 8px;
}

.membership-model-pricing-heading,
.membership-model-pricing-list > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.membership-model-pricing-heading h3 {
  margin: 0;
  font-size: 15px;
}

.membership-model-pricing-heading span,
.membership-model-pricing small {
  color: var(--text-tertiary);
  font-size: 12px;
}

.membership-model-pricing-list {
  display: grid;
  gap: 7px;
  margin: 12px 0 9px;
}

.membership-model-pricing-list > div {
  font-size: 13px;
}

.membership-model-pricing-list strong {
  color: var(--color-saturn-yellow);
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}

.membership-model-pricing small {
  display: block;
  line-height: 1.5;
}

.settings-task-section {
  margin: 14px 0 0;
  padding: 0;
  background: transparent;
}

.membership-task-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.membership-task-heading h3 {
  margin: 0;
  font-size: 16px;
  color: var(--text-primary);
}

.membership-task-heading span {
  font-size: 12px;
  color: var(--text-tertiary);
}

.membership-task-list {
  display: grid;
  gap: 10px;
}

.membership-task-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 14px;
  background: var(--settings-card-bg, var(--bg-primary));
  border: 0;
}

.settings-task-section .membership-task-item {
  background: var(--settings-card-bg);
}

.membership-task-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.membership-task-item.completed {
  border-color: var(--border-color);
  opacity: 0.72;
}

.membership-task-main {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.membership-task-main strong {
  color: var(--text-primary);
  font-size: 14px;
}

.membership-task-main span {
  color: var(--color-saturn-yellow);
  font-size: 13px;
  font-weight: 700;
}

.membership-task-main small {
  color: var(--text-tertiary);
  font-size: 11px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.membership-task-action {
  min-height: 36px;
  border: 0;
  border-radius: 11px;
  padding: 8px 14px;
  background: var(--text-primary);
  color: var(--bg-primary);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
}

.membership-task-action:disabled {
  cursor: default;
  opacity: 0.55;
}

.membership-task-action.secondary {
  background: var(--settings-card-hover, var(--bg-secondary));
  color: var(--text-primary);
}

.pwa-reward-overlay {
  position: fixed;
  inset: 0;
  z-index: 10020;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.56);
  backdrop-filter: blur(10px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.22s ease, visibility 0.22s ease;
}

.pwa-reward-overlay.active {
  opacity: 1;
  visibility: visible;
}

.pwa-reward-card {
  position: relative;
  width: min(420px, 100%);
  border-radius: 22px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-primary);
  padding: 28px 24px 24px;
  box-shadow: var(--floating-menu-shadow);
  text-align: center;
}

.pwa-reward-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 50%;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}

.pwa-reward-icon {
  width: 58px;
  height: 58px;
  margin: 0 auto 14px;
  border-radius: 18px;
  background: center / contain no-repeat url("icons/rai-app-icon.svg"), var(--bg-secondary);
}

.pwa-reward-card h2 {
  margin: 0 0 8px;
  font-size: 24px;
  color: var(--text-primary);
}

.pwa-reward-card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.5;
}

.pwa-reward-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 22px;
}

.pwa-reward-primary,
.pwa-reward-secondary {
  min-height: 42px;
  border: 0;
  border-radius: 999px;
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 760;
  cursor: pointer;
}

.pwa-reward-primary {
  background: var(--color-saturn-yellow);
  color: #111111;
}

.pwa-reward-secondary {
  background: var(--bg-secondary);
  color: var(--text-secondary);
}

.membership-extra-section {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 16px;
}

.membership-extra-section h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 8px 0;
}

.membership-extra-section p {
  font-size: 13px;
  color: var(--text-secondary);
  margin: 0;
}

.membership-status-note {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-top: 8px !important;
}

.membership-contact {
  text-align: left;
  padding: 16px 18px;
  background: var(--bg-secondary);
  border-radius: 16px;
}

.membership-contact p {
  margin: 0 0 8px 0;
}

.membership-contact p:last-child {
  margin-bottom: 0;
}

.membership-contact a {
  color: var(--color-saturn-yellow);
  text-decoration: none;
}

@media (max-width: 600px) {
  .membership-plans-box {
    width: calc(100vw - 24px);
    max-width: calc(100vw - 24px);
    max-height: calc(100dvh - 24px);
    border-radius: 22px;
    overflow-x: hidden;
  }

  .membership-plans-header {
    padding: 22px 22px 16px;
  }

  .membership-plans-header h2 {
    font-size: 27px;
  }

  .membership-plans-content {
    padding: 18px 16px 24px;
    box-sizing: border-box;
    overflow-x: hidden;
  }

  .membership-plans-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
    min-width: 0;
  }

  .membership-plan-card {
    width: 100%;
    min-width: 0;
    max-width: 100%;
    min-height: auto;
    padding: 24px 20px;
    box-sizing: border-box;
    overflow: hidden;
  }

  .membership-plan-topline {
    min-width: 0;
  }

  .membership-current-pill {
    white-space: nowrap;
  }

  .membership-task-heading {
    display: grid;
    gap: 3px;
  }

  .membership-task-item {
    grid-template-columns: minmax(0, 1fr);
  }

  .membership-model-pricing-heading,
  .membership-model-pricing-list > div {
    align-items: flex-start;
  }

  .membership-task-action {
    width: 100%;
  }

  .membership-task-actions {
    display: grid;
    width: 100%;
  }

  .pwa-reward-actions {
    grid-template-columns: 1fr;
  }
}

/* ==================== 用户设置面板会员状态 ==================== */
.settings-membership-section {
  background: var(--bg-tertiary);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
}

.settings-membership-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.settings-membership-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 6px;
  font-weight: 600;
}

.settings-membership-badge.free {
  background: rgba(150, 150, 150, 0.15);
  color: #aaa;
}

.settings-membership-badge.pro {
  background: rgba(33, 150, 243, 0.15);
  color: #2196F3;
}

.settings-membership-badge.max {
  background: rgba(245, 213, 71, 0.15);
  color: var(--color-saturn-yellow);
}

.settings-upgrade-link {
  font-size: 12px;
  color: var(--color-saturn-yellow);
  text-decoration: none;
  cursor: pointer;
}

.settings-upgrade-link:hover {
  text-decoration: underline;
}

.settings-points-display {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-primary);
}

.settings-points-display .points-icon {
  color: var(--color-saturn-yellow);
}

.settings-checkin-btn,
.sidebar-checkin-btn {
  padding: 8px 16px;
  background: var(--color-saturn-yellow);
  color: #000;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: none;
  transition: opacity 0.2s ease, background 0.2s ease;
}

.settings-checkin-btn {
  margin-top: 12px;
}

.settings-checkin-btn:hover:not(:disabled),
.sidebar-checkin-btn:hover:not(:disabled) {
  opacity: 0.86;
}

.sidebar-checkin-btn {
  width: fit-content;
  max-width: 100%;
  margin-top: 6px;
  padding: 6px 10px;
  font-size: 12px;
  line-height: 1;
  white-space: nowrap;
}

.settings-checkin-btn:disabled {
  background: var(--bg-tertiary);
  color: var(--text-tertiary);
  cursor: not-allowed;
}

.settings-created-at {
  font-size: 11px;
  color: var(--text-tertiary);
  margin-top: 8px;
}

/* ==================== 画布右键菜单动画 ==================== */
@keyframes menuFadeIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(-5px);
  }

  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.canvas-context-menu,
.node-context-menu,
.edge-context-menu,
.edge-label-menu {
  animation: menuFadeIn 0.15s ease-out;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.canvas-context-menu .context-menu-item svg,
.node-context-menu .context-menu-item svg {
  opacity: 0.8;
  flex-shrink: 0;
}

.canvas-context-menu .context-menu-item:hover svg,
.node-context-menu .context-menu-item:hover svg {
  opacity: 1;
}

/* 画布拖拽悬停效果 */
.chatflow-canvas-container.drag-over {
  background: rgba(255, 193, 7, 0.05);
  outline: 2px dashed var(--color-saturn-yellow);
  outline-offset: -4px;
}

/* 文本节点样式增强 */
.canvas-node[data-node-type="text"] .canvas-node-bg {
  stroke: var(--color-saturn-yellow);
  stroke-width: 2;
}

/* 拖拽消息时的样式 */
.chatflow-message.dragging {
  opacity: 0.5;
  transform: scale(0.98);
}

/* ==================== ChatFlow iframe 模式样式 ==================== */
/* 
body.chatflow-iframe-mode .sidebar {
  display: none !important;
} 
*/

/* 
body.chatflow-iframe-mode .main-content {
  margin-left: 0;
  width: 100%;
}
*/

/* iframe 内文本选择样式 */
body.chatflow-iframe-mode .message-content {
  user-select: text;
}

body.chatflow-iframe-mode .message-content::selection {
  background: var(--color-saturn-yellow);
  color: #000;
}

/* ==================== GPT-style settings redesign ==================== */
.settings-modal {
  --settings-overlay-bg: rgba(0, 0, 0, 0.72);
  --settings-page-bg: var(--bg-secondary);
  --settings-card-bg: var(--bg-tertiary);
  --settings-card-hover: var(--bg-hover);
  --settings-row-bg: #3a3a3a;
  --settings-row-hover: #434343;
  --settings-input-bg: #2f2f2f;
  --settings-divider: rgba(0, 0, 0, 0.45);
  --settings-notification-bg: var(--notification-surface-bg);
  --settings-notification-unread-bg: var(--notification-surface-unread-bg);
  --settings-notification-border: transparent;
  --settings-notification-icon-bg: var(--settings-card-hover);
  --settings-mobile-app-bg: #141510;
  --settings-icon-shadow-bg: #141510;
  --settings-avatar-bg: linear-gradient(145deg, #2c2c2c, #101010);
  --settings-avatar-border: rgba(255, 255, 255, 0.12);
  --settings-selected-bg: #444444;
  --settings-selected-text: #ffffff;
  padding: 18px;
  background: var(--settings-overlay-bg);
  animation: none;
}

[data-theme="light"] .settings-modal {
  --settings-overlay-bg: rgba(246, 246, 243, 0.82);
  --settings-page-bg: #f3f3ed;
  --settings-card-bg: #fbfbf7;
  --settings-card-hover: #e8e8e4;
  --settings-row-bg: #eeeeeb;
  --settings-row-hover: #e2e2de;
  --settings-input-bg: #e9e9e5;
  --settings-divider: rgba(18, 18, 18, 0.13);
  --settings-notification-bg: var(--notification-surface-bg);
  --settings-notification-unread-bg: var(--notification-surface-unread-bg);
  --settings-notification-border: transparent;
  --settings-notification-icon-bg: var(--settings-card-hover);
  --settings-mobile-app-bg: #f3f3ed;
  --settings-icon-shadow-bg: #f3f3ed;
  --settings-avatar-bg: linear-gradient(145deg, #ffffff, #d9d9d4);
  --settings-avatar-border: rgba(0, 0, 0, 0.12);
  --settings-selected-bg: #ddddd8;
  --settings-selected-text: #1f1f1f;
}

.settings-modal.active,
.settings-modal.closing {
  display: flex;
}

.settings-content {
  display: flex;
  width: min(1120px, 94vw);
  height: min(760px, 88vh);
  max-width: none;
  max-height: none;
  overflow: hidden;
  background: var(--settings-page-bg);
  border: 0;
  border-radius: 26px;
  box-shadow: var(--floating-menu-shadow);
  animation: settingsModalEnter 0.44s cubic-bezier(0.16, 1, 0.3, 1);
}

.settings-modal.closing {
  pointer-events: none;
  animation: settingsOverlayExit 0.32s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.settings-modal.closing .settings-content {
  animation: settingsModalExit 0.32s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes settingsModalEnter {
  from {
    opacity: 0;
    transform: translateY(24px) scale(0.965);
    filter: blur(4px);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
  }
}

@keyframes settingsModalExit {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }

  to {
    opacity: 0;
    transform: translateY(18px) scale(0.975);
    filter: blur(3px);
  }
}

@keyframes settingsOverlayExit {
  to {
    opacity: 0;
  }
}

@keyframes settingsMobileEnter {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.settings-sidebar {
  width: 232px;
  flex: 0 0 232px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 18px 12px;
  background: var(--settings-page-bg);
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
}

.settings-close-btn {
  width: 54px;
  height: 54px;
  border: 0;
  border-radius: 14px;
  background: var(--settings-card-bg);
  color: var(--text-primary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.18s ease, transform 0.18s ease;
}

.settings-close-icon {
  width: 24px;
  height: 24px;
  display: block;
}

.settings-close-btn:hover {
  background: var(--settings-card-hover);
}

.settings-close-btn:active {
  transform: scale(0.98);
}

.settings-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.settings-nav-group {
  display: contents;
}

.settings-mobile-profile,
.settings-mobile-section-label {
  display: none;
}

.settings-nav-item {
  width: 100%;
  min-height: 48px;
  padding: 0 16px;
  border: 0;
  border-radius: 14px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  font: inherit;
  font-size: 17px;
  font-weight: 650;
  text-align: left;
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.settings-nav-icon {
  width: 22px;
  height: 22px;
  flex: 0 0 22px;
  display: block;
  opacity: 0.68;
  transition: opacity 0.18s ease;
}

.settings-nav-item span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.settings-nav-item:hover,
.settings-nav-item.active {
  background: var(--settings-selected-bg);
  color: var(--text-primary);
}

[data-theme="light"] .settings-nav-item:hover,
[data-theme="light"] .settings-nav-item.active {
  color: var(--settings-selected-text);
}

.settings-nav-item:hover .settings-nav-icon,
.settings-nav-item.active .settings-nav-icon {
  opacity: 1;
}

.settings-nav-item:active {
  transform: scale(0.985);
}

.tauri-desktop-only.is-hidden {
  display: none !important;
}

.settings-logout-link {
  margin-top: 0;
  padding: 12px 18px;
  border: 0;
  border-radius: 14px;
  background: var(--settings-card-bg);
  color: var(--text-primary);
  cursor: pointer;
  font: inherit;
  font-size: 15px;
  font-weight: 700;
  text-align: center;
  transition: background 0.18s ease, color 0.18s ease;
}

.settings-logout-link:hover {
  background: var(--settings-card-hover);
  color: var(--error-color);
}

.settings-main {
  flex: 1;
  min-width: 0;
  overflow-y: auto;
  padding: 30px 52px 44px 20px;
  background: var(--settings-page-bg);
  scrollbar-width: thin;
}

.settings-main-header {
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.settings-back-btn {
  display: none;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 0;
  border-radius: 13px;
  background: var(--settings-card-bg);
  color: var(--text-primary);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.settings-title {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.15;
  color: var(--text-primary);
}

.settings-panel-container {
  position: relative;
}

.settings-panel {
  display: none;
}

.settings-panel.active,
.settings-panel.leaving {
  display: block;
}

.settings-panel.active {
  animation: settingsPanelEnter 0.42s cubic-bezier(0.16, 1, 0.3, 1);
}

.settings-panel.leaving {
  position: absolute;
  inset: 0;
  pointer-events: none;
  animation: settingsPanelExit 0.32s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes settingsPanelEnter {
  from {
    opacity: 0;
    transform: translateX(18px) scale(0.985);
  }

  to {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

@keyframes settingsPanelExit {
  from {
    opacity: 1;
    transform: translateX(0) scale(1);
  }

  to {
    opacity: 0;
    transform: translateX(-14px) scale(0.99);
  }
}

.settings-section-intro {
  margin-bottom: 18px;
}

.settings-section-intro h3,
.settings-about-card h3 {
  margin: 0 0 7px;
  color: var(--text-primary);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.25;
}

.settings-section-intro p,
.settings-about-card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.5;
}

.settings-section-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.settings-section-row .settings-section-intro {
  margin-bottom: 18px;
}

.settings-flat-group,
.settings-group {
  margin: 0 0 24px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.settings-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 20px;
}

.settings-account-grid .setting-item {
  display: flex;
  flex-direction: column;
}

.settings-account-grid .setting-description {
  min-height: calc(13px * 1.45 * 2);
}

.settings-account-grid .setting-input,
.settings-account-grid .settings-email-inline-row {
  margin-top: 0;
}

.settings-email-inline-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  align-items: center;
}

.settings-email-inline-row.has-action {
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}

.settings-email-inline-row .setting-input {
  min-width: 0;
  margin-top: 0;
}

.settings-email-confirm-btn {
  min-height: 56px;
  padding-inline: 20px;
  border-radius: 14px;
}

.settings-account-action-row {
  display: none;
  justify-content: flex-end;
  margin: 12px 0 18px;
}

.settings-account-action-row.is-visible {
  display: flex;
}

.settings-email-change-extra,
.settings-email-verify-panel {
  margin-top: 12px;
  padding: 12px;
  border-radius: 12px;
  background: var(--settings-card-bg);
}

.settings-email-change-extra .setting-label {
  margin-bottom: 6px;
}

.settings-email-change-extra .setting-description,
.settings-email-verify-status {
  margin: 8px 0 0;
}

.settings-email-verify-status:empty {
  display: none;
}

.settings-email-code-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto;
  gap: 10px;
  align-items: end;
}

.settings-email-code-field {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.settings-email-code-field .setting-label {
  margin: 0;
  font-size: 12px;
  color: var(--text-secondary);
}

.settings-avatar-card {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 0 0 18px;
  padding: 18px 20px;
  border-radius: 18px;
  background: var(--settings-card-bg);
}

.settings-avatar-preview {
  width: 58px;
  height: 58px;
  border: 0;
  border-radius: 50%;
  background: var(--settings-avatar-bg);
  color: var(--text-primary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 58px;
  font: inherit;
  font-size: 24px;
  font-weight: 750;
  overflow: hidden;
  transition: transform 0.22s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.22s ease;
}

.settings-avatar-preview:active {
  transform: scale(0.96);
}

.settings-avatar-meta {
  flex: 1;
  min-width: 0;
}

.settings-avatar-action {
  flex: 0 0 auto;
}

.settings-two-factor-card {
  display: grid;
  gap: 14px;
  padding: 18px 20px;
  border-radius: 18px;
  background: var(--settings-card-bg);
}

.settings-passkey-card {
  display: grid;
  gap: 14px;
  margin-top: 12px;
  padding: 18px 20px;
  border-radius: 18px;
  background: var(--settings-card-bg);
}

.settings-passkey-card:empty {
  display: none;
}

.settings-device-card {
  display: grid;
  gap: 14px;
  margin-bottom: 12px;
  padding: 18px 20px;
  border-radius: 18px;
  background: var(--settings-card-bg);
}

.settings-device-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.settings-device-header > div {
  min-width: 0;
}

.settings-device-logout-all {
  flex: 0 0 auto;
  white-space: nowrap;
}

.settings-device-list {
  display: grid;
  gap: 1px;
  overflow: hidden;
  border-radius: 12px;
  background: var(--settings-divider);
}

.settings-device-row {
  padding: 13px 14px;
  background: var(--settings-card-hover);
}

.settings-device-row-main {
  display: grid;
  gap: 5px;
  min-width: 0;
}

.settings-device-name-row {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.settings-device-name-row strong {
  min-width: 0;
  overflow-wrap: anywhere;
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 740;
}

.settings-device-status {
  flex: 0 0 auto;
  min-height: 22px;
  padding: 0 8px;
  border-radius: 999px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 760;
  line-height: 22px;
  white-space: nowrap;
}

.settings-device-status.current {
  background: rgba(255, 255, 255, 0.86);
  color: #111827;
  box-shadow: inset 0 0 0 1px rgba(17, 24, 39, 0.08);
}

[data-theme="light"] .settings-device-status.current {
  background: rgba(17, 24, 39, 0.08);
  color: #111827;
}

.settings-device-meta,
.settings-device-notice,
.settings-device-error {
  margin: 0;
  color: var(--text-tertiary, var(--text-secondary));
  font-size: 12px;
  line-height: 1.35;
}

.settings-device-error {
  color: var(--error-color);
}

.settings-device-history {
  display: grid;
  gap: 10px;
}

.settings-device-history summary {
  cursor: pointer;
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 700;
}

.settings-passkey-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.settings-passkey-header > div {
  min-width: 0;
}

.settings-passkey-header > .settings-inline-save {
  flex: 0 0 auto;
}

.settings-passkey-notice,
.settings-passkey-empty,
.settings-passkey-load-error p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.5;
}

.settings-passkey-notice {
  padding: 10px 12px;
  border-radius: 12px;
  background: var(--settings-input-bg);
}

.settings-passkey-list {
  display: grid;
  gap: 1px;
  overflow: hidden;
  border-radius: 12px;
  background: var(--settings-divider);
}

.settings-passkey-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 13px 14px;
  background: var(--settings-card-hover);
}

.settings-passkey-row-main {
  min-width: 0;
  display: grid;
  gap: 5px;
}

.settings-passkey-name-row {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.settings-passkey-name-row strong {
  min-width: 0;
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 740;
  overflow-wrap: anywhere;
}

.settings-passkey-status {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 22px;
  padding: 0 8px;
  border-radius: 999px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 760;
  white-space: nowrap;
}

.settings-passkey-status.enabled {
  background: rgba(255, 255, 255, 0.86);
  color: #111827;
  box-shadow: inset 0 0 0 1px rgba(17, 24, 39, 0.08);
}

[data-theme="light"] .settings-passkey-status.enabled {
  background: rgba(17, 24, 39, 0.08);
  color: #111827;
}

.settings-passkey-status.pending {
  background: color-mix(in srgb, #f59e0b 16%, transparent);
  color: color-mix(in srgb, #f59e0b 82%, var(--text-primary));
}

.settings-passkey-meta {
  color: var(--text-tertiary, var(--text-secondary));
  font-size: 12px;
  line-height: 1.35;
}

.settings-passkey-row-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 7px;
}

.settings-passkey-row-actions .settings-inline-save {
  min-height: 34px;
  padding: 0 11px;
  font-size: 12px;
  white-space: nowrap;
}

.settings-passkey-remove {
  color: var(--error-color);
}

.settings-passkey-load-error {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.settings-two-factor-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.settings-two-factor-status {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 760;
  white-space: nowrap;
}

.settings-two-factor-status.enabled {
  background: rgba(255, 255, 255, 0.86);
  color: #111827;
  box-shadow: inset 0 0 0 1px rgba(17, 24, 39, 0.08);
}

[data-theme="light"] .settings-two-factor-status.enabled {
  background: rgba(17, 24, 39, 0.08);
  color: #111827;
  box-shadow: inset 0 0 0 1px rgba(17, 24, 39, 0.08);
}

.settings-two-factor-actions,
.settings-two-factor-disable,
.settings-two-factor-setup {
  display: grid;
  gap: 12px;
}

.settings-two-factor-setup-body {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
}

.settings-two-factor-qr {
  width: 132px;
  height: 132px;
  border-radius: 12px;
  background: #fff;
  padding: 8px;
}

.settings-two-factor-secret {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.settings-two-factor-secret span {
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 700;
}

.settings-two-factor-secret code {
  display: block;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--settings-input-bg);
  color: var(--text-primary);
  font-size: 12px;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.settings-two-factor-code-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 10px;
  align-items: end;
}

.settings-two-factor-code-row .setting-label {
  grid-column: 1 / -1;
  margin-bottom: -4px;
}

.settings-two-factor-code-row .setting-input {
  min-height: 42px;
  padding: 0 13px;
  font-size: 16px;
}

.settings-two-factor-secondary {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: none;
  background: var(--settings-card-hover);
  color: var(--text-primary);
}

.settings-password-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.settings-subsection {
  margin-top: 18px;
  padding-top: 18px;
  border: 0;
}

.settings-subsection-row {
  align-items: center;
  margin-bottom: 12px;
}

.settings-account-logout-row {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--settings-divider);
}

.settings-danger-zone {
  padding: 18px 20px;
  border-radius: 18px;
  background: var(--settings-card-bg);
  box-shadow: none;
}

[data-theme="light"] .settings-danger-zone {
  background: var(--settings-card-bg);
  box-shadow: none;
}

.settings-account-delete-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 14px;
}

.settings-account-delete-2fa {
  grid-column: 1 / -1;
}

.settings-danger-action {
  background: var(--settings-row-bg);
  color: var(--text-primary);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--text-primary) 14%, transparent);
}

.settings-danger-action:hover {
  background: var(--settings-row-hover);
}

.settings-subsection-title {
  color: var(--text-primary);
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 6px;
}

.setting-item {
  margin: 0;
}

.setting-label {
  margin: 0 0 6px;
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 700;
}

.setting-description {
  margin: 0 0 10px;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.45;
}

.setting-input,
.system-prompt-input {
  width: 100%;
  border: 0;
  border-radius: 14px;
  background: var(--settings-input-bg);
  color: var(--text-primary);
  outline: none;
  box-shadow: none;
  transition: background 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
}

.setting-input {
  min-height: 56px;
  padding: 0 18px;
  font-size: 18px;
}

.system-prompt-input {
  min-height: 220px;
  padding: 18px 20px;
  font-size: 17px;
  line-height: 1.55;
  resize: vertical;
}

.setting-input:focus,
.system-prompt-input:focus {
  border: 0;
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--text-primary) 18%, transparent);
  background: var(--settings-input-bg);
}

.settings-choice-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.settings-choice-btn,
.settings-inline-save,
.settings-inline-confirm,
.settings-content .btn {
  border: 0;
  box-shadow: none;
}

.settings-choice-btn {
  min-height: 62px;
  border-radius: 16px;
  background: var(--settings-card-bg);
  color: var(--text-primary);
  cursor: pointer;
  font: inherit;
  font-size: 18px;
  font-weight: 700;
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.settings-choice-btn:hover,
.settings-choice-btn.active {
  background: var(--text-primary);
  color: var(--bg-primary);
}

[data-theme="light"] .settings-choice-btn:hover,
[data-theme="light"] .settings-choice-btn.active {
  background: #d8d8d3;
  color: #1f1f1f;
}

.settings-choice-btn:active,
.settings-inline-save:active,
.settings-inline-confirm:active {
  transform: scale(0.98);
}

.settings-memory-section {
  display: grid;
  gap: 14px;
}

.memory-toggle-row,
.memory-add-row {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.memory-toggle-row {
  justify-content: space-between;
  padding: 14px 16px;
  border-radius: 14px;
  background: var(--settings-card-bg);
}

.memory-switch {
  min-width: 52px;
}

.memory-add-input {
  flex: 1 1 auto;
  min-width: 0;
}

.memory-list {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.memory-empty {
  padding: 16px;
  border-radius: 14px;
  background: var(--settings-card-bg);
  color: var(--text-secondary);
  font-size: 14px;
}

.memory-item {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  padding: 13px 14px;
  border-radius: 14px;
  background: var(--settings-card-bg);
}

.memory-item-main {
  min-width: 0;
  flex: 1 1 auto;
}

.memory-item-content {
  color: var(--text-primary);
  font-size: 15px;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.memory-item-meta {
  margin-top: 5px;
  color: var(--text-tertiary);
  font-size: 12px;
  text-transform: uppercase;
}

.memory-delete-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 10px;
  background: var(--settings-card-hover);
  color: var(--text-secondary);
  cursor: pointer;
}

.memory-delete-btn:hover {
  color: var(--text-primary);
}

.settings-inline-save,
.settings-inline-confirm {
  min-height: 38px;
  padding: 0 15px;
  border-radius: 11px;
  background: var(--text-primary);
  color: var(--bg-primary);
  cursor: pointer;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  transition: opacity 0.18s ease, transform 0.18s ease, background 0.18s ease;
}

.settings-inline-save.secondary {
  background: var(--settings-card-hover, var(--bg-hover));
  color: var(--text-primary);
}

.settings-inline-confirm {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateX(10px);
}

.settings-inline-confirm.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(0);
}

.settings-inline-save:hover,
.settings-inline-confirm:hover {
  opacity: 0.88;
}

.settings-inline-save:disabled,
.settings-inline-confirm:disabled {
  opacity: 0.38;
  cursor: not-allowed;
}

.settings-step-dialog-overlay {
  --settings-page-bg: var(--bg-secondary);
  --settings-card-bg: var(--bg-tertiary);
  --settings-card-hover: var(--bg-hover);
  --settings-input-bg: #2f2f2f;
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-modal) + 4);
  display: grid;
  place-items: center;
  padding: 22px;
  background: rgba(0, 0, 0, 0.48);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.16s ease;
}

[data-theme="light"] .settings-step-dialog-overlay {
  --settings-page-bg: #f4f4f1;
  --settings-card-bg: #ffffff;
  --settings-card-hover: #e8e8e4;
  --settings-input-bg: #e9e9e5;
  background: rgba(32, 32, 30, 0.22);
}

.settings-step-dialog-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.settings-step-dialog {
  width: min(420px, 100%);
  padding: 22px;
  border-radius: 20px;
  background: var(--settings-page-bg);
  color: var(--text-primary);
  box-shadow: var(--floating-menu-shadow);
}

.settings-step-dialog-form {
  display: grid;
  gap: 14px;
}

.settings-step-dialog-title {
  font-size: 20px;
  font-weight: 750;
  line-height: 1.25;
}

.settings-step-dialog-desc {
  margin: -5px 0 2px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.45;
}

.settings-step-dialog-input {
  margin: 0;
}

.settings-step-dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 4px;
}

.advanced-options-content,
.advanced-options-content.expanded {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  max-height: none;
  opacity: 1;
  margin-top: 0;
  overflow: visible;
  transition: none;
}

.advanced-options-content .setting-item {
  display: grid;
  grid-template-columns: minmax(170px, 0.34fr) minmax(240px, 1fr);
  gap: 12px 24px;
  align-items: center;
  padding: 16px 18px;
  border-radius: 16px;
  background: var(--settings-card-bg);
}

.advanced-options-content .setting-label {
  margin-bottom: 3px;
}

.advanced-options-content .setting-description {
  margin-bottom: 0;
}

.slider-container {
  display: grid;
  grid-template-columns: 1fr 64px;
  gap: 12px;
  align-items: center;
  padding: 0;
}

.slider-input {
  height: 6px;
  background: var(--settings-card-bg);
}

.slider-input::-webkit-slider-thumb {
  width: 18px;
  height: 18px;
  background: var(--text-primary);
  box-shadow: none;
}

.slider-input::-webkit-slider-thumb:hover {
  transform: scale(1.08);
}

.slider-input::-moz-range-thumb {
  width: 18px;
  height: 18px;
  background: var(--text-primary);
  box-shadow: none;
}

.slider-value {
  margin-left: 0;
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 700;
  text-align: right;
}

.settings-membership-section,
.ztx6d-binding-card,
.settings-desktop-card,
.settings-about-card {
  border: 0;
  border-radius: 18px;
  background: var(--settings-card-bg);
  box-shadow: none;
}

.settings-membership-section {
  margin: 0;
  padding: 22px;
}

.settings-membership-header {
  margin-bottom: 18px;
}

.settings-points-display {
  margin-bottom: 12px;
  font-size: 16px;
}

.settings-checkin-btn {
  min-height: 42px;
  border-radius: 12px;
  box-shadow: none;
}

.ztx6d-binding-card {
  padding: 20px 22px;
}

.ztx6d-binding-actions {
  gap: 16px;
}

.settings-desktop-card {
  padding: 22px;
}

.settings-desktop-status {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.45;
  margin-bottom: 18px;
}

.settings-desktop-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.settings-desktop-actions .settings-inline-save {
  position: static;
}

.settings-desktop-actions .settings-inline-save.secondary {
  background: var(--settings-card-hover);
  color: var(--text-primary);
}

#ztx6dBindBtn,
.settings-content .btn-secondary {
  border: 0;
}

.settings-about-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 148px;
  padding: 24px;
  background-color: #11100e;
  background-image: url('images/onboarding-saturn.png');
  background-position: center 48%;
  background-size: cover;
}

.settings-about-card::before {
  content: '';
  position: absolute;
  z-index: -1;
  inset: 0;
  background: rgba(4, 4, 4, 0.38);
}

.settings-about-card h3 {
  color: #ffffff;
}

.settings-about-card p {
  color: rgba(255, 255, 255, 0.82);
}

.settings-about-logo {
  position: relative;
  z-index: 1;
}

.settings-about-card > div:last-child {
  position: relative;
  z-index: 1;
  flex: 1 1 auto;
  min-width: 0;
  max-width: 100%;
}

.settings-about-card p,
.settings-timeline-body p,
.settings-timeline-detail-list {
  overflow-wrap: anywhere;
  word-break: break-word;
}

.settings-about-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.settings-about-link {
  min-width: 0;
  padding: 16px 18px;
  border-radius: 16px;
  background: var(--settings-card-bg);
  color: var(--text-primary);
  text-decoration: none;
  display: grid;
  gap: 5px;
  border: 0;
  text-align: left;
  font: inherit;
  cursor: pointer;
  transition: background 0.18s ease, transform 0.18s ease;
}

.settings-about-link:hover {
  background: var(--settings-card-hover);
}

.settings-about-link:active {
  transform: scale(0.99);
}

.settings-about-link span:first-child {
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 760;
}

.settings-about-link span:last-child {
  min-width: 0;
  overflow: hidden;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.settings-install-card {
  margin-top: 12px;
  padding: 18px;
  border-radius: 18px;
  background: var(--settings-card-bg);
}

.settings-platform-downloads {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.settings-platform-download {
  min-width: 0;
  display: grid;
  gap: 10px;
  align-content: start;
}

.settings-platform-download + .settings-platform-download {
  padding-left: 18px;
  border-left: 1px solid color-mix(in srgb, var(--text-secondary) 18%, transparent);
}

.settings-platform-download h4 {
  margin: 0;
  color: var(--text-primary);
  font-size: 17px;
  font-weight: 760;
  line-height: 1.25;
}

.settings-windows-actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  min-width: 0;
}

.settings-windows-actions .settings-install-download,
.settings-platform-download .settings-install-btn {
  min-width: 0;
  text-align: center;
}

.settings-certificate-link {
  align-self: center;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 680;
  text-decoration: none;
  white-space: nowrap;
}

.settings-certificate-link:hover {
  color: var(--text-primary);
  text-decoration: underline;
}

.settings-windows-lumia {
  margin-top: 6px;
  font-size: 12px;
  color: var(--text-secondary, #888);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.settings-windows-lumia .settings-lumia-link {
  color: var(--accent, #4a9eff);
  text-decoration: none;
}

.settings-windows-lumia .settings-lumia-link:hover {
  text-decoration: underline;
}

.settings-onedrive-hint {
  margin-top: 6px;
  font-size: 12px;
  color: var(--text-secondary, #888);
}

.settings-onedrive-hint a {
  color: var(--accent, #4a9eff);
  text-decoration: none;
}

.settings-onedrive-hint a:hover {
  text-decoration: underline;
}

.settings-install-main {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
}

.settings-install-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--settings-card-hover);
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.settings-install-copy {
  min-width: 0;
}

.settings-install-copy h4 {
  margin: 0 0 5px;
  color: var(--text-primary);
  font-size: 17px;
  font-weight: 760;
  line-height: 1.25;
}

.settings-install-copy p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.42;
}

.settings-install-status {
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 680;
  line-height: 1.35;
}

.settings-install-actions {
  display: grid;
  justify-items: stretch;
  gap: 8px;
}

.settings-install-btn {
  min-height: 40px;
  padding: 0 16px;
  border: 0;
  border-radius: 12px;
  background: var(--text-primary);
  color: var(--bg-primary);
  cursor: pointer;
  font: inherit;
  font-size: 14px;
  font-weight: 760;
  white-space: nowrap;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.settings-install-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 16px;
  border-radius: 12px;
  background: var(--settings-card-hover);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 760;
  text-decoration: none;
  white-space: nowrap;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.settings-install-btn:hover {
  opacity: 0.88;
}

.settings-install-download:hover {
  opacity: 0.88;
}

.settings-install-btn:active,
.settings-install-download:active {
  transform: scale(0.98);
}

.settings-install-btn:disabled {
  opacity: 0.42;
  cursor: not-allowed;
}

.settings-notice-hero {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  align-items: center;
  margin-bottom: 14px;
  padding: 22px 24px;
  border: 0;
  border-radius: 18px;
  background: var(--settings-notification-bg);
}

.settings-notice-icon {
  width: 54px;
  height: 54px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 18px;
  background: var(--settings-notification-icon-bg);
}

.settings-notice-icon img {
  width: 28px;
  height: 28px;
  display: block;
  filter: grayscale(1);
  opacity: 0.78;
}

[data-theme="light"] .settings-notice-icon img {
  filter: brightness(0) saturate(100%);
}

.settings-notice-kicker {
  margin-bottom: 4px;
  color: var(--text-tertiary);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.settings-notice-hero h4 {
  margin: 0 0 6px;
  color: var(--text-primary);
  font-size: 22px;
  font-weight: 800;
  line-height: 1.2;
}

.settings-notice-hero p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.55;
}

.settings-notification-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 14px;
}

.settings-notification-preferences {
  margin-bottom: 16px;
}

.settings-notification-list {
  display: grid;
  gap: 10px;
}

.settings-notification-item {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  padding: 16px 18px;
  border-radius: 18px;
  border: 0;
  background: var(--settings-notification-bg);
  backdrop-filter: blur(20px) saturate(120%);
  -webkit-backdrop-filter: blur(20px) saturate(120%);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.settings-notification-item.is-unread {
  border-color: var(--settings-notification-border);
  background: var(--settings-notification-unread-bg);
}

.settings-notification-item.is-unread::before {
  content: "";
  position: absolute;
  top: 18px;
  right: 18px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-tertiary);
}

.settings-notification-item-icon {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--settings-notification-icon-bg);
}

.settings-notification-item-icon img {
  width: 20px;
  height: 20px;
  display: block;
  filter: grayscale(1);
  opacity: 0.78;
}

[data-theme="light"] .settings-notification-item-icon img {
  filter: brightness(0) saturate(100%);
}

.settings-notification-item strong {
  display: block;
  margin-bottom: 4px;
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 760;
}

.settings-notification-item span {
  display: block;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.45;
}

.settings-notification-meta {
  margin-top: 8px;
  color: var(--text-tertiary);
  font-size: 12px;
}

.settings-notification-control-list {
  margin-bottom: 22px;
}

.settings-row-actions {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

.settings-notification-row-actions .settings-inline-save {
  min-height: 38px;
  padding: 0 16px;
}

.settings-notification-board {
  display: grid;
  gap: 12px;
}

.settings-notification-board-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
}

.settings-notification-board-head h4 {
  margin: 0 0 4px;
  color: var(--text-primary);
  font-size: 16px;
}

.settings-notification-board-head p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.5;
}

.settings-notification-hint:empty {
  display: none;
}

.settings-notification-item {
  align-items: start;
  border-radius: 14px;
}

.settings-notification-item.is-unread::before {
  display: none;
}

.settings-notification-item-head,
.settings-notification-meta-row {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.settings-notification-item-head {
  margin-bottom: 4px;
}

.settings-notification-type,
.settings-notification-item .settings-notification-type {
  display: inline-flex;
  color: var(--text-tertiary);
  font-size: 11px;
  font-weight: 760;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.settings-notification-unread-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-tertiary);
  flex: 0 0 auto;
}

.settings-notification-meta-row {
  justify-content: space-between;
  margin-top: 10px;
}

.settings-notification-meta-row .settings-notification-meta {
  margin: 0;
}

.settings-notification-link {
  flex: 0 0 auto;
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 750;
  text-decoration: none;
}

.settings-notification-link:hover {
  text-decoration: underline;
}

.settings-notification-empty {
  padding: 18px;
  border-radius: 14px;
  background: var(--notification-surface-bg);
  backdrop-filter: blur(20px) saturate(120%);
  -webkit-backdrop-filter: blur(20px) saturate(120%);
  color: var(--text-secondary);
  font-size: 14px;
}

/* ==================== 公告投放：右下角提醒 (toast) ==================== */
.rai-announcement-toast-stack {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 10030;
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: min(360px, calc(100vw - 32px));
  pointer-events: none;
}

.rai-announcement-toast {
  pointer-events: auto;
  position: relative;
  padding: 16px 40px 16px 16px;
  border-radius: 16px;
  border: 0;
  background: var(--notification-surface-bg);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(20px) saturate(120%);
  -webkit-backdrop-filter: blur(20px) saturate(120%);
  animation: raiAnnouncementToastIn 0.28s ease;
}

@keyframes raiAnnouncementToastIn {
  from { transform: translateY(14px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.rai-announcement-toast strong {
  display: block;
  margin-bottom: 5px;
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 760;
}

.rai-announcement-toast span {
  display: block;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.45;
}

.rai-announcement-toast-close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 24px;
  height: 24px;
  border: 0;
  border-radius: 50%;
  background: color-mix(in srgb, var(--bg-hover) 80%, transparent);
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
}

/* ==================== 公告投放：弹窗 (popup) ==================== */
.rai-announcement-popup-overlay {
  position: fixed;
  inset: 0;
  z-index: 10031;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  background: rgba(12, 12, 18, 0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: onboardingFadeIn 0.2s ease;
}

.rai-announcement-popup {
  width: min(440px, calc(100vw - 32px));
  padding: 26px 26px 22px;
  border-radius: 22px;
  border: 0;
  background: var(--notification-surface-bg);
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(22px) saturate(120%);
  -webkit-backdrop-filter: blur(22px) saturate(120%);
  animation: onboardingSlideUp 0.26s ease;
}

.rai-announcement-popup-kicker {
  margin-bottom: 8px;
  color: var(--text-tertiary);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.rai-announcement-popup h3 {
  margin: 0 0 10px;
  color: var(--text-primary);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.25;
}

.rai-announcement-popup p {
  margin: 0 0 20px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.rai-announcement-popup-actions {
  display: flex;
  justify-content: flex-end;
}

.rai-announcement-popup-btn {
  min-height: 42px;
  padding: 0 22px;
  border: 0;
  border-radius: 999px;
  background: var(--text-primary);
  color: var(--bg-primary);
  font-size: 14px;
  font-weight: 720;
  cursor: pointer;
}

.settings-install-steps {
  display: grid;
  gap: 7px;
  margin: 10px 0 0;
  padding-left: 22px;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.45;
}

.settings-install-tutorial {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid color-mix(in srgb, var(--text-secondary) 18%, transparent);
}

.settings-install-tutorial summary {
  color: var(--text-primary);
  cursor: pointer;
  font-size: 13px;
  font-weight: 760;
}

.settings-about-timeline {
  margin-top: 18px;
  padding: 22px 24px;
  border-radius: 18px;
  background: var(--settings-card-bg);
}

.settings-about-timeline-title {
  margin-bottom: 18px;
  color: var(--text-primary);
  font-size: 18px;
  font-weight: 760;
}

.settings-about-timeline-intro {
  margin: -8px 0 20px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.65;
  overflow-wrap: anywhere;
}

.settings-timeline-list {
  display: grid;
  gap: 0;
}

.settings-timeline-item {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 18px;
  padding: 0 0 20px;
  position: relative;
}

.settings-timeline-item:last-child {
  padding-bottom: 0;
}

.settings-timeline-item:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 87px;
  top: 7px;
  bottom: -7px;
  width: 1px;
  background: color-mix(in srgb, var(--text-secondary) 22%, transparent);
}

.settings-timeline-date {
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 680;
  line-height: 1.5;
  white-space: nowrap;
}

.settings-timeline-body {
  min-width: 0;
  position: relative;
  padding-left: 18px;
}

.settings-timeline-body::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--text-primary);
  box-shadow: 0 0 0 4px var(--settings-card-bg);
  z-index: 1;
}

.settings-timeline-version {
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 760;
  line-height: 1.35;
}

.settings-timeline-body p {
  margin: 5px 0 0;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.5;
}

.settings-timeline-details {
  margin-top: 10px;
}

.settings-timeline-details summary {
  width: fit-content;
  list-style: none;
  cursor: pointer;
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 720;
  line-height: 1.35;
}

.settings-timeline-details summary::-webkit-details-marker {
  display: none;
}

.settings-timeline-details summary::after {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-left: 8px;
  border-right: 1.6px solid currentColor;
  border-bottom: 1.6px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
  transition: transform 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

.settings-timeline-details[open] summary::after {
  transform: translateY(2px) rotate(-135deg);
}

.settings-timeline-detail-list {
  display: grid;
  gap: 7px;
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.45;
}

.settings-about-timeline-source {
  margin: 18px 0 0;
  color: var(--text-tertiary);
  font-size: 12px;
  line-height: 1.45;
}

.settings-about-logo {
  width: 70px;
  height: 70px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 70px;
  padding: 9px;
}

.settings-about-logo-icon {
  width: 100%;
  height: 100%;
  display: block;
}

.settings-footer,
.settings-header,
.settings-body {
  display: none;
}

@media (max-width: 860px) {
  .settings-modal {
    justify-content: center;
    align-items: stretch;
    padding: 0;
    background: var(--settings-mobile-app-bg);
  }

  .settings-content {
    position: relative;
    width: 100vw;
    height: 100dvh;
    max-height: none;
    flex-direction: row;
    border-radius: 0;
    background: var(--settings-mobile-app-bg);
    overflow: hidden;
    animation: settingsMobileEnter 0.34s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .settings-sidebar,
  .settings-main {
    position: absolute;
    inset: 0;
    width: 100%;
    box-sizing: border-box;
    max-width: 532px;
    margin: 0 auto;
    background: var(--settings-mobile-app-bg);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    transition:
      opacity 0.48s cubic-bezier(0.16, 1, 0.3, 1),
      transform 0.48s cubic-bezier(0.16, 1, 0.3, 1),
      filter 0.48s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform, filter;
  }

  .settings-sidebar {
    flex: 1 1 auto;
    padding: max(68px, calc(env(safe-area-inset-top) + 52px)) 18px max(26px, env(safe-area-inset-bottom));
    gap: 22px;
  }

  .settings-sidebar::-webkit-scrollbar,
  .settings-main::-webkit-scrollbar {
    display: none;
  }

  .settings-close-btn {
    position: absolute;
    top: max(16px, calc(env(safe-area-inset-top) + 10px));
    left: 16px;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--settings-card-bg);
    z-index: 2;
  }

  .settings-close-btn:hover {
    background: var(--settings-card-hover);
  }

  .settings-mobile-profile {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin: 0 0 4px;
  }

  .settings-mobile-avatar-btn {
    position: relative;
    width: 72px;
    height: 72px;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .settings-mobile-avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--settings-avatar-bg);
    color: var(--text-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    font-weight: 750;
    border: 1px solid var(--settings-avatar-border);
    overflow: hidden;
  }

  .settings-mobile-avatar-edit {
    position: absolute;
    right: -1px;
    bottom: 1px;
    width: 25px;
    height: 25px;
    border-radius: 50%;
    background: var(--settings-row-bg);
    color: var(--text-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 0 3px var(--settings-icon-shadow-bg);
  }

  .settings-mobile-name {
    color: var(--text-primary);
    font-size: 20px;
    font-weight: 700;
    line-height: 1.2;
  }

  .settings-nav {
    flex-direction: column;
    overflow: visible;
    gap: 14px;
    padding: 0;
  }

  .settings-nav-group {
    display: flex;
    flex-direction: column;
    gap: 1px;
    overflow: hidden;
    border-radius: 21px;
  }

  .settings-mobile-section-label {
    display: block;
    margin: 6px 20px 0;
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
  }

  .settings-nav-item {
    width: 100%;
    flex: 0 0 auto;
    min-height: 64px;
    padding: 0 22px;
    border-radius: 0;
    background: var(--settings-row-bg);
    color: var(--text-primary);
    font-size: 19px;
    font-weight: 700;
    gap: 15px;
  }

  .settings-nav-item:hover,
  .settings-nav-item.active {
    background: var(--settings-row-hover);
    color: var(--text-primary);
  }

  .settings-content.mobile-home .settings-nav-item.active {
    background: var(--settings-row-bg);
  }

  .settings-nav-icon {
    width: 24px;
    height: 24px;
    flex-basis: 24px;
    opacity: 1;
  }

  .settings-notice-hero {
    grid-template-columns: 1fr;
    padding: 20px;
  }

  .settings-notification-actions {
    display: grid;
  }

  .settings-logout-link {
    display: block;
    margin: 0;
    padding: 14px 20px;
    font-size: 15px;
  }

  .settings-main {
    flex: 1;
    padding: max(18px, calc(env(safe-area-inset-top) + 12px)) 18px max(26px, env(safe-area-inset-bottom));
  }

  .settings-content.mobile-home .settings-sidebar {
    opacity: 1;
    transform: translateX(0) scale(1);
    filter: blur(0);
    pointer-events: auto;
  }

  .settings-content.mobile-home .settings-main {
    opacity: 0;
    transform: translateX(22px) scale(0.985);
    filter: blur(1px);
    pointer-events: none;
  }

  .settings-content.mobile-detail .settings-sidebar {
    opacity: 0;
    transform: translateX(-22px) scale(0.985);
    filter: blur(1px);
    pointer-events: none;
  }

  .settings-content.mobile-detail .settings-main {
    opacity: 1;
    transform: translateX(0) scale(1);
    filter: blur(0);
    pointer-events: auto;
  }

  .settings-back-btn {
    display: inline-flex;
    flex: 0 0 auto;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--settings-card-bg);
  }

  .settings-back-btn svg {
    width: 30px;
    height: 30px;
  }

  .settings-main-header {
    margin-bottom: 18px;
    gap: 12px;
  }

  .settings-title {
    font-size: 22px;
  }

  .settings-section-intro {
    margin-bottom: 14px;
  }

  .settings-section-intro h3,
  .settings-about-card h3 {
    font-size: 19px;
    margin-bottom: 5px;
  }

  .settings-section-intro p,
  .settings-about-card p,
  .setting-description {
    font-size: 13px;
    line-height: 1.42;
  }

  .settings-section-row {
    gap: 12px;
    margin-bottom: 14px;
  }

  .settings-form-grid,
  .settings-password-grid,
  .advanced-options-content .setting-item {
    grid-template-columns: 1fr;
  }

  .settings-form-grid,
  .settings-password-grid {
    display: flex;
    flex-direction: column;
    gap: 1px;
    overflow: hidden;
    border-radius: 21px;
  }

  .settings-form-grid .setting-item,
  .settings-password-grid .setting-item,
  .advanced-options-content .setting-item {
    padding: 15px 18px;
    background: var(--settings-row-bg);
  }

  .settings-account-action-row {
    justify-content: stretch;
    margin: 1px 0 16px;
  }

  .settings-account-action-row .settings-inline-confirm {
    width: 100%;
  }

  .settings-email-change-extra,
  .settings-email-verify-panel {
    padding: 12px 0 0;
    background: transparent;
  }

  .settings-email-inline-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .settings-email-inline-row.has-action {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
  }

  .settings-email-confirm-btn {
    min-height: 46px;
    padding-inline: 14px;
    border-radius: 13px;
  }

  .settings-email-code-row {
    grid-template-columns: 1fr;
  }

  .setting-label {
    font-size: 15px;
    margin-bottom: 5px;
  }

  .setting-description {
    margin-bottom: 8px;
  }

  .settings-account-grid .setting-description {
    min-height: 0;
  }

  .setting-input {
    min-height: 46px;
    padding: 0 14px;
    border-radius: 13px;
    font-size: 16px;
    background: var(--settings-input-bg);
  }

  .system-prompt-input {
    min-height: 190px;
    padding: 15px 16px;
    border-radius: 18px;
    font-size: 15px;
    background: var(--settings-input-bg);
  }

  .settings-choice-row {
    display: flex;
    flex-direction: column;
    gap: 1px;
    overflow: hidden;
    border-radius: 21px;
  }

  .settings-choice-btn {
    min-height: 62px;
    border-radius: 0;
    background: var(--settings-row-bg);
    font-size: 18px;
    text-align: left;
    padding: 0 22px;
  }

  .memory-toggle-row,
  .memory-add-row {
    align-items: stretch;
    flex-direction: column;
  }

  .memory-switch {
    align-self: flex-start;
  }

  .memory-add-row .settings-inline-save {
    width: 100%;
  }

  .settings-account-logout-row {
    margin-top: 18px;
    padding-top: 16px;
  }

  .settings-danger-zone {
    padding: 16px 18px;
    border-radius: 21px;
  }

  .settings-account-delete-grid {
    margin-bottom: 12px;
  }

  .settings-choice-btn:hover,
  .settings-choice-btn.active {
    background: var(--text-primary);
    color: var(--bg-primary);
  }

  [data-theme="light"] .settings-choice-btn:hover,
  [data-theme="light"] .settings-choice-btn.active {
    background: #d8d8d3;
    color: #1f1f1f;
  }

	  .settings-avatar-card,
	  .settings-device-card,
	  .settings-two-factor-card,
	  .settings-passkey-card,
	  .settings-membership-section,
	  .ztx6d-binding-card,
	  .settings-install-card {
    border-radius: 21px;
    background: var(--settings-row-bg);
  }

  .settings-about-card {
    border-radius: 21px;
  }

  .settings-about-links {
    grid-template-columns: 1fr;
    gap: 1px;
    overflow: hidden;
    border-radius: 21px;
    margin-top: 12px;
  }

  .settings-about-link {
    border-radius: 0;
    background: var(--settings-row-bg);
  }

  .settings-install-card {
    padding: 16px 18px;
  }

  .settings-platform-downloads {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .settings-platform-download + .settings-platform-download {
    padding-top: 14px;
    padding-left: 0;
    border-top: 1px solid color-mix(in srgb, var(--text-secondary) 18%, transparent);
    border-left: 0;
  }

  .settings-install-main {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 12px;
  }

  .settings-install-icon {
    width: 42px;
    height: 42px;
    border-radius: 13px;
  }

  .settings-install-actions {
    grid-column: 1 / -1;
  }

  .settings-install-btn,
  .settings-install-download {
    width: 100%;
    min-height: 42px;
  }

  .settings-install-steps {
    font-size: 12px;
  }

	  .settings-avatar-card {
	    gap: 14px;
	    margin-bottom: 14px;
	    padding: 16px 18px;
	  }

	  .settings-two-factor-header,
	  .settings-device-header,
	  .settings-passkey-header,
	  .settings-two-factor-setup-body,
	  .settings-two-factor-code-row {
	    grid-template-columns: 1fr;
	  }

	  .settings-two-factor-header {
	    display: grid;
	  }

	  .settings-device-header {
	    display: grid;
	  }

	  .settings-passkey-header {
	    display: grid;
	  }

	  .settings-two-factor-status,
	  .settings-passkey-status {
	    justify-self: start;
	  }

	  .settings-two-factor-code-row .setting-label {
	    margin-bottom: 0;
	  }

	  .settings-two-factor-code-row .settings-inline-save,
	  .settings-two-factor-code-row .settings-inline-confirm {
	    width: 100%;
	  }

  .settings-avatar-preview {
    width: 52px;
    height: 52px;
    flex-basis: 52px;
    font-size: 22px;
  }

  .settings-avatar-action {
    min-height: 36px;
    padding: 0 12px;
    font-size: 13px;
  }

  .settings-membership-section {
    padding: 18px;
  }

  .settings-about-timeline {
    margin-top: 14px;
    padding: 18px;
    border-radius: 21px;
    background: var(--settings-row-bg);
  }

  .settings-about-timeline-title {
    font-size: 17px;
    margin-bottom: 16px;
  }

  .settings-timeline-item {
    grid-template-columns: 72px 1fr;
    gap: 13px;
    padding-bottom: 18px;
  }

  .settings-timeline-item:not(:last-child)::after {
    left: 71px;
  }

  .settings-timeline-date {
    font-size: 12px;
  }

  .settings-timeline-body {
    padding-left: 16px;
  }

  .settings-timeline-version {
    font-size: 15px;
  }

  .settings-timeline-body p {
    font-size: 13px;
    line-height: 1.42;
  }

  .settings-timeline-details summary,
  .settings-timeline-detail-list {
    font-size: 12px;
  }

  .settings-checkin-btn {
    width: 100%;
    min-height: 40px;
  }

  .advanced-options-content,
  .advanced-options-content.expanded {
    display: flex;
    flex-direction: column;
    gap: 1px;
    overflow: hidden;
    border-radius: 21px;
  }

  .advanced-options-content .setting-item {
    display: block;
    border-radius: 0;
  }

  .slider-container {
    grid-template-columns: 1fr 54px;
  }
}

@media (max-width: 520px) {
  .settings-content {
    width: 100vw;
    border-radius: 0;
  }

  .settings-choice-row {
    grid-template-columns: 1fr;
  }

  .settings-section-row {
    flex-direction: column;
    align-items: stretch;
  }

  .settings-inline-save,
  .settings-inline-confirm {
    width: 100%;
  }

  .settings-avatar-action {
    width: auto;
    flex: 0 0 auto;
  }
}

/* ==================== RAI settings IA redesign v0.11.9 ==================== */
.settings-content {
  position: relative;
  width: min(1040px, 94vw);
  height: min(760px, 88vh);
  border-radius: 20px;
}

.settings-desktop-close-btn {
  position: absolute;
  top: 18px;
  right: 18px;
  z-index: 4;
  width: 38px;
  height: 38px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.settings-desktop-close-btn:hover {
  background: var(--settings-card-hover);
  color: var(--text-primary);
}

.settings-desktop-close-btn:active {
  transform: scale(0.96);
}

.settings-sidebar {
  width: 260px;
  flex-basis: 260px;
  gap: 14px;
  padding: 18px 14px;
  border-right: 1px solid var(--settings-divider);
}

.settings-sidebar > .settings-close-btn,
.settings-mobile-chrome,
.settings-mobile-account-card,
.settings-mobile-upgrade-card,
.settings-mobile-logout-link {
  display: none;
}

.settings-sidebar-brand {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 4px 6px 8px;
  color: var(--text-primary);
}

.settings-sidebar-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--settings-avatar-bg);
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 820;
  flex: 0 0 34px;
  overflow: hidden;
}

.settings-sidebar-user-copy {
  min-width: 0;
  display: grid;
  gap: 2px;
}

.settings-sidebar-user-line {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 7px;
}

.settings-sidebar-brand strong {
  min-width: 0;
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.2;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.settings-sidebar-brand .settings-sidebar-user-copy > span {
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.2;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.settings-sidebar-plan {
  display: inline-flex;
  align-items: center;
  min-height: 18px;
  padding: 0 7px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--text-primary) 12%, transparent);
  color: var(--text-secondary);
  font-size: 10px;
  font-weight: 820;
  line-height: 1;
  text-transform: uppercase;
  flex: 0 0 auto;
}

.settings-sidebar-plan.pro {
  background: rgba(47, 134, 232, 0.18);
  color: #5aa4ff;
}

.settings-sidebar-plan.max {
  background: rgba(225, 174, 58, 0.2);
  color: #e5bd58;
}

.settings-search {
  min-height: 42px;
  padding: 0 12px;
  border-radius: 12px;
  background: var(--settings-card-bg);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 9px;
}

.settings-search input {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text-primary);
  font: inherit;
  font-size: 14px;
}

.settings-search input::placeholder {
  color: var(--text-tertiary);
}

.settings-search-results {
  display: grid;
  gap: 3px;
  max-height: 230px;
  margin-top: -6px;
  padding: 6px;
  overflow-y: auto;
  border-radius: 12px;
  background: var(--settings-card-bg);
  scrollbar-width: thin;
}

.settings-search-results[hidden] {
  display: none;
}

.settings-search-result {
  width: 100%;
  min-height: 48px;
  padding: 8px 10px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--text-primary);
  cursor: pointer;
  display: grid;
  gap: 3px;
  font: inherit;
  text-align: left;
  transition: background 0.18s ease, color 0.18s ease;
}

.settings-search-result:hover,
.settings-search-result:focus-visible {
  outline: none;
  background: var(--settings-card-hover);
}

.settings-search-result-title {
  overflow: hidden;
  font-size: 13px;
  font-weight: 720;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.settings-search-result-path {
  overflow: hidden;
  color: var(--text-tertiary);
  font-size: 11px;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.settings-search-empty {
  padding: 10px;
  color: var(--text-tertiary);
  font-size: 12px;
  line-height: 1.4;
  text-align: center;
}

.settings-search-hit {
  scroll-margin-block: 88px;
  animation: settingsSearchHit 1.6s var(--menu-motion-easing);
}

@keyframes settingsSearchHit {
  0%, 100% { box-shadow: none; }
  24% { box-shadow: 0 0 0 4px rgba(255, 193, 7, 0.22); }
}

.settings-nav {
  gap: 14px;
  overflow-y: auto;
  padding-right: 2px;
}

.settings-nav-group {
  display: grid;
  gap: 2px;
}

.settings-mobile-section-label {
  display: block;
  margin: 0 8px 2px;
  color: var(--text-tertiary);
  font-size: 12px;
  font-weight: 740;
}

.settings-nav-item {
  min-height: 40px;
  padding: 0 10px;
  border-radius: 10px;
  gap: 10px;
  font-size: 14px;
  font-weight: 650;
}

.settings-nav-icon {
  width: 18px;
  height: 18px;
  flex-basis: 18px;
}

.settings-nav-item.is-filtered-out,
.settings-nav-group.is-filtered-out,
.settings-mobile-section-label.is-filtered-out {
  display: none;
}

.settings-desktop-logout-link {
  width: 100%;
  min-height: 36px;
  margin-top: auto;
  padding: 0 10px;
  flex: 0 0 auto;
  appearance: none;
  -webkit-appearance: none;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  font-weight: 650;
  text-align: left;
  transition: background 0.18s ease, color 0.18s ease;
}

.settings-desktop-logout-link:hover,
.settings-desktop-logout-link:focus-visible {
  outline: none;
  background: var(--settings-card-hover);
  color: var(--error-color);
}

@media (min-width: 861px) {
  .settings-sidebar {
    min-height: 0;
    overflow-x: hidden;
    overflow-y: hidden;
  }

  .settings-nav {
    flex: 1 1 auto;
    min-height: 0;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-width: thin;
  }

  .settings-desktop-logout-link {
    margin-top: auto;
  }
}

@media (max-width: 860px) {
  .settings-desktop-logout-link,
  .settings-search-results {
    display: none !important;
  }
}

.settings-main {
  padding: 52px 56px 46px 48px;
}

.settings-main-header {
  margin-bottom: 22px;
}

.settings-title {
  font-size: 26px;
  letter-spacing: 0;
}

.settings-section-intro {
  margin-bottom: 20px;
}

.settings-section-intro h3,
.settings-about-card h3 {
  font-size: 21px;
}

.settings-section-row {
  align-items: center;
}

.settings-row-list {
  display: grid;
  border-top: 1px solid var(--settings-divider);
}

.settings-setting-row {
  min-height: 72px;
  padding: 16px 0;
  border-bottom: 1px solid var(--settings-divider);
  display: grid;
  grid-template-columns: minmax(210px, 1fr) minmax(260px, auto);
  gap: 18px;
  align-items: center;
}

.settings-setting-row-stacked {
  grid-template-columns: 1fr;
  align-items: stretch;
}

.settings-setting-row-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.settings-setting-copy {
  min-width: 0;
}

.settings-setting-row .setting-label,
.settings-setting-row .settings-subsection-title {
  margin-bottom: 4px;
}

.settings-setting-row .setting-description {
  margin: 0;
}

.settings-segmented {
  width: fit-content;
  max-width: 100%;
  padding: 3px;
  border-radius: 12px;
  background: var(--settings-card-bg);
  display: inline-flex;
  gap: 2px;
  justify-self: end;
}

.settings-segmented .settings-choice-btn {
  min-height: 34px;
  min-width: 76px;
  padding: 0 12px;
  border-radius: 9px;
  background: transparent;
  font-size: 13px;
  font-weight: 720;
}

.settings-segmented .settings-choice-btn:hover,
.settings-segmented .settings-choice-btn.active {
  background: var(--settings-selected-bg);
  color: var(--settings-selected-text);
}

.settings-inline-field {
  max-width: 420px;
}

.settings-row-switch {
  justify-self: end;
}

.settings-setting-row.is-disabled {
  opacity: 0.48;
}

.settings-setting-row.is-disabled .settings-row-switch {
  cursor: not-allowed;
}

.settings-research-mode-choice {
  justify-self: start;
}

.settings-form-grid,
.settings-password-grid {
  gap: 18px;
}

.settings-account-grid .setting-item,
.settings-password-grid .setting-item {
  padding: 0;
  background: transparent;
}

	  .settings-avatar-card,
	  .settings-device-card,
	  .settings-two-factor-card,
.settings-passkey-card,
.settings-danger-zone,
.settings-membership-section,
.ztx6d-binding-card,
.settings-desktop-card,
.settings-about-card,
.settings-install-card,
.settings-about-timeline,
.settings-notice-hero,
.settings-notification-item,
.memory-toggle-row,
.memory-empty,
.memory-item {
  border-radius: 12px;
}

.setting-input,
.system-prompt-input {
  border-radius: 12px;
}

.settings-choice-row {
  gap: 8px;
}

.settings-choice-row:not(.temp-chat-choice-row) .settings-choice-btn {
  min-height: 44px;
  border-radius: 12px;
  font-size: 15px;
}

.temp-chat-choice-row {
  display: inline-flex;
  width: fit-content;
  max-width: 100%;
  padding: 3px;
  border-radius: 12px;
  background: var(--settings-card-bg);
}

.temp-chat-choice-row .settings-choice-btn {
  min-height: 34px;
  min-width: 88px;
  border-radius: 9px;
  background: transparent;
  font-size: 13px;
}

.temp-chat-choice-row .settings-choice-btn:hover,
.temp-chat-choice-row .settings-choice-btn.active {
  background: var(--settings-selected-bg);
  color: var(--settings-selected-text);
}

.settings-account-logout-row {
  display: none;
}

.settings-danger-action {
  color: var(--error-color);
}

@media (max-width: 860px) {
  .settings-modal {
    align-items: flex-end;
    background: #000;
  }

  .settings-content {
    width: 100vw;
    height: calc(100dvh - 16px);
    max-width: none;
    border-radius: 28px 28px 0 0;
    background: var(--settings-mobile-app-bg);
  }

  .settings-desktop-close-btn,
  .settings-sidebar-brand,
  .settings-search {
    display: none;
  }

  .settings-sidebar,
  .settings-main {
    max-width: 100%;
    background: var(--settings-mobile-app-bg);
  }

  .settings-sidebar {
    padding: max(74px, calc(env(safe-area-inset-top) + 58px)) 32px max(28px, env(safe-area-inset-bottom));
    gap: 18px;
  }

  .settings-sidebar > .settings-close-btn,
  .settings-mobile-chrome,
  .settings-mobile-account-card,
  .settings-mobile-upgrade-card,
  .settings-mobile-logout-link {
    display: flex;
  }

  .settings-mobile-chrome {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 3;
    height: 74px;
    padding: 0 32px;
    align-items: center;
    justify-content: center;
    pointer-events: none;
  }

  .settings-mobile-chrome .settings-close-btn,
  .settings-mobile-info-btn {
    pointer-events: auto;
  }

  .settings-close-btn {
    position: absolute;
    top: 16px;
    left: 28px;
    width: 44px;
    height: 44px;
    border-radius: 14px;
    background: transparent;
  }

  .settings-mobile-home-title {
    color: var(--text-primary);
    font-size: 22px;
    font-weight: 780;
    line-height: 1;
  }

  .settings-mobile-info-btn {
    position: absolute;
    top: 17px;
    right: 32px;
    width: 42px;
    height: 42px;
    border: 1.5px solid var(--text-secondary);
    border-radius: 50%;
    background: transparent;
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font: inherit;
    font-size: 22px;
    font-weight: 760;
    cursor: pointer;
  }

  .settings-mobile-profile {
    display: none;
  }

  .settings-mobile-account-card,
  .settings-mobile-upgrade-card {
    width: 100%;
    border: 1px solid color-mix(in srgb, var(--text-primary) 13%, transparent);
    border-radius: 22px;
    background: transparent;
    color: var(--text-primary);
    text-align: left;
    cursor: pointer;
  }

  .settings-mobile-account-card {
    min-height: 68px;
    padding: 10px 18px;
    align-items: center;
    gap: 13px;
  }

  .settings-mobile-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--settings-avatar-bg);
    color: var(--text-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 42px;
    font-size: 18px;
    font-weight: 760;
    overflow: hidden;
  }

  .settings-mobile-account-copy {
    min-width: 0;
    display: grid;
    gap: 3px;
  }

  .settings-mobile-account-copy strong,
  .settings-mobile-account-copy span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .settings-mobile-account-copy strong {
    font-size: 17px;
  }

  .settings-mobile-account-copy span {
    color: var(--text-secondary);
    font-size: 13px;
  }

  .settings-mobile-upgrade-card {
    padding: 18px;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    background: var(--settings-card-bg);
  }

  .settings-mobile-upgrade-card span,
  .settings-mobile-upgrade-card strong,
  .settings-mobile-upgrade-card b {
    display: block;
  }

  .settings-mobile-upgrade-card strong {
    margin-bottom: 6px;
    font-size: 20px;
    line-height: 1.2;
  }

  .settings-mobile-upgrade-card span span {
    color: var(--text-secondary);
    font-size: 14px;
  }

  .settings-mobile-upgrade-action {
    padding: 9px 14px;
    border-radius: 999px;
    background: var(--text-primary);
    color: var(--bg-primary);
    font-size: 14px;
    font-weight: 760;
  }

  .settings-nav {
    gap: 14px;
  }

  .settings-nav-group {
    display: flex;
    flex-direction: column;
    gap: 0;
    border-radius: 18px;
    overflow: hidden;
    background: transparent;
  }

  .settings-mobile-section-label {
    margin: 4px 0 -6px;
    font-size: 13px;
    font-weight: 720;
  }

  .settings-nav-item {
    min-height: 58px;
    padding: 0 8px;
    border-radius: 0;
    background: transparent;
    font-size: 20px;
    color: var(--text-primary);
    position: relative;
  }

  .settings-nav-item + .settings-nav-item {
    border-top: 1px solid var(--settings-divider);
  }

  .settings-nav-item:hover,
  .settings-nav-item.active,
  .settings-content.mobile-home .settings-nav-item.active {
    background: transparent;
  }

  .settings-nav-item::after {
    content: "";
    width: 10px;
    height: 10px;
    margin-left: auto;
    border-right: 2px solid var(--text-secondary);
    border-bottom: 2px solid var(--text-secondary);
    transform: rotate(-45deg);
  }

  .settings-nav-icon {
    width: 26px;
    height: 26px;
    flex-basis: 26px;
    opacity: 0.82;
  }

  .settings-mobile-logout-link {
    width: 100%;
    min-height: 58px;
    padding: 0 8px;
    border: 0;
    border-top: 1px solid var(--settings-divider);
    background: transparent;
    color: var(--text-primary);
    font: inherit;
    font-size: 20px;
    font-weight: 650;
    cursor: pointer;
    align-items: center;
  }

  .settings-main {
    padding: max(20px, calc(env(safe-area-inset-top) + 14px)) 32px max(28px, env(safe-area-inset-bottom));
  }

  .settings-main-header {
    position: sticky;
    top: 0;
    z-index: 2;
    min-height: 54px;
    margin: -4px -32px 20px;
    padding: 0 32px;
    background: var(--settings-mobile-app-bg);
    display: grid;
    grid-template-columns: 92px 1fr 92px;
    align-items: center;
  }

  .settings-back-btn {
    width: auto;
    height: 44px;
    justify-content: flex-start;
    border-radius: 0;
    background: transparent;
    color: var(--text-secondary);
  }

  .settings-back-btn svg {
    width: 30px;
    height: 30px;
  }

  .settings-back-label {
    margin-left: 3px;
    color: var(--text-secondary);
    font-size: 18px;
    font-weight: 650;
  }

  .settings-title {
    justify-self: center;
    text-align: center;
    font-size: 22px;
  }

  .settings-section-intro {
    margin-bottom: 18px;
  }

  .settings-row-list {
    border-top: 0;
  }

  .settings-setting-row {
    min-height: 66px;
    padding: 17px 0;
    grid-template-columns: 1fr auto;
    gap: 14px;
  }

  .settings-setting-row-stacked {
    grid-template-columns: 1fr;
  }

  .settings-segmented {
    width: 100%;
    justify-self: stretch;
  }

  .settings-segmented .settings-choice-btn {
    flex: 1 1 0;
    min-width: 0;
  }

  .settings-form-grid,
  .settings-password-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
    overflow: visible;
    border-radius: 0;
  }

  .settings-form-grid .setting-item,
  .settings-password-grid .setting-item,
  .advanced-options-content .setting-item {
    padding: 0;
    background: transparent;
  }

  .setting-input {
    min-height: 52px;
    border-radius: 999px;
  }

  .system-prompt-input {
    min-height: 210px;
    border-radius: 22px;
  }

  .settings-inline-save,
  .settings-inline-confirm,
  .settings-install-btn,
  .settings-install-download {
    border-radius: 999px;
  }

  .temp-chat-choice-row {
    width: 100%;
  }

  .settings-avatar-card,
  .settings-two-factor-card,
  .settings-passkey-card,
  .settings-danger-zone,
  .settings-membership-section,
  .ztx6d-binding-card,
  .settings-about-card,
  .settings-install-card,
  .settings-about-timeline,
  .settings-notice-hero {
    border-radius: 20px;
  }
}

@media (max-width: 520px) {
  .settings-sidebar,
  .settings-main {
    padding-left: 32px;
    padding-right: 32px;
  }

  .settings-main-header {
    margin-left: -32px;
    margin-right: -32px;
  }

  .settings-section-row {
    align-items: stretch;
  }

  .settings-passkey-row {
    grid-template-columns: 1fr;
  }

  .settings-passkey-row-actions {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr;
  }

  .settings-passkey-row-actions .settings-inline-save,
  .settings-passkey-header > .settings-inline-save {
    width: 100%;
  }
}

.settings-content .settings-row-switch .more-menu-item-toggle,
.settings-content .memory-switch .more-menu-item-toggle {
  width: 52px;
  height: 30px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--text-primary) 14%, transparent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--text-primary) 7%, transparent);
}

.settings-content .settings-row-switch .more-menu-item-toggle::after,
.settings-content .memory-switch .more-menu-item-toggle::after {
  top: 2px;
  left: 2px;
  width: 26px;
  height: 26px;
  background: var(--text-primary);
  box-shadow: 0 1px 5px rgba(0, 0, 0, 0.22);
}

.settings-content .settings-row-switch .more-menu-item-toggle.active,
.settings-content .memory-switch .more-menu-item-toggle.active {
  background: #2f86e8;
  box-shadow: none;
}

.settings-content .settings-row-switch .more-menu-item-toggle.active::after,
.settings-content .memory-switch .more-menu-item-toggle.active::after {
  transform: translateX(22px);
  background: #fff;
}

.settings-memory-helper {
  margin: 0;
  padding: 13px 16px;
  border-radius: 12px;
  background: var(--settings-card-bg);
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.55;
}

.settings-memory-danger {
  margin-top: 2px;
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-color: color-mix(in srgb, var(--error-color) 28%, transparent);
  background: color-mix(in srgb, var(--error-color) 8%, var(--settings-card-bg));
}

.settings-memory-danger h4 {
  margin: 0 0 5px;
  color: var(--text-primary);
  font-size: 15px;
}

.settings-memory-danger p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.5;
}

@media (max-width: 860px) {
  .settings-modal {
    --settings-mobile-app-bg: #242421;
    --settings-icon-shadow-bg: #242421;
    align-items: flex-end;
    justify-content: center;
    padding: 0;
    background: rgba(0, 0, 0, 0.72);
  }

  [data-theme="light"] .settings-modal {
    --settings-mobile-app-bg: #f7f7f3;
    --settings-icon-shadow-bg: #f7f7f3;
  }

  .settings-content {
    width: 100vw;
    height: calc(100dvh - 12px);
    max-width: none;
    border-radius: 28px 28px 0 0;
    background: var(--settings-mobile-app-bg);
    box-shadow: 0 -16px 64px rgba(0, 0, 0, 0.34);
  }

  .settings-sidebar,
  .settings-main {
    position: absolute;
    inset: 0;
    width: 100%;
    flex-basis: auto;
    max-width: none;
    margin: 0;
    border-right: 0;
    background: var(--settings-mobile-app-bg);
  }

  .settings-content.mobile-detail .settings-panel,
  .settings-content.mobile-home .settings-nav,
  .settings-content.mobile-home .settings-mobile-account-card,
  .settings-content.mobile-home .settings-mobile-upgrade-card,
  .settings-content.mobile-home .settings-mobile-logout-link {
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
  }

  .settings-content.mobile-home .settings-nav {
    width: 100%;
  }

  .settings-content.mobile-detail .settings-panel {
    width: 100%;
  }

  .settings-memory-section {
    gap: 12px;
  }

  .settings-memory-toggle-row {
    align-items: center;
    flex-direction: row;
    padding: 16px;
  }

  .settings-memory-add-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .settings-memory-add-row .settings-inline-save {
    width: 100%;
  }

  .settings-memory-danger {
    align-items: stretch;
    flex-direction: column;
    gap: 12px;
  }

  .settings-memory-danger .settings-inline-save {
    width: 100%;
  }

  .settings-row-actions,
  .settings-notification-row-actions {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr;
    justify-content: stretch;
  }

  .settings-notification-row-actions .settings-inline-save,
  .settings-notification-link {
    width: 100%;
  }

  .settings-notification-meta-row {
    align-items: flex-start;
    flex-direction: column;
  }
}

/* ==================== 新用户引导 (Onboarding) ==================== */
.onboarding-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(0, 0, 0, 0.68);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  animation: onboardingFadeIn 0.25s ease;
}

@keyframes onboardingFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.onboarding-card {
  position: relative;
  width: min(660px, calc(100vw - 32px));
  height: min(720px, calc(100vh - 48px));
  max-height: min(720px, calc(100vh - 48px));
  background: #242424;
  border: none;
  border-radius: 18px;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.42), var(--floating-menu-shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: onboardingSlideUp 0.3s ease;
}

@keyframes onboardingSlideUp {
  from { transform: translateY(16px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* 图片区，不叠文字 */
.onboarding-hero {
  flex: 0 0 33.333%;
  min-height: 0;
  overflow: hidden;
  background: #090909;
}

.onboarding-card[data-step="0"] .onboarding-hero {
  flex-basis: 50%;
}

.onboarding-hero-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

/* 文字内容区 */
.onboarding-body {
  position: relative;
  min-height: 0;
  padding: 42px 44px 20px;
  flex: 1;
  overflow-y: auto;
  text-align: center;
}

.onboarding-card[data-step="0"] .onboarding-body {
  display: flex;
  align-items: center;
  justify-content: center;
}

.onboarding-kicker {
  color: var(--color-saturn-yellow);
  font-size: 0.84rem;
  font-weight: 760;
  letter-spacing: 0;
  margin-bottom: 10px;
}

.onboarding-step {
  display: none;
  padding-bottom: 4px;
}

.onboarding-step.active {
  display: block;
  animation: onboardingStepIn 0.25s ease;
}

@keyframes onboardingStepIn {
  from { transform: translateY(8px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.onboarding-step-title {
  color: #FFFFFF;
  font-size: 1.4rem;
  font-weight: 780;
  line-height: 1.25;
  margin-bottom: 12px;
}

.onboarding-step-desc {
  max-width: 470px;
  margin: 0 auto 10px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.98rem;
  line-height: 1.65;
}

/* 特色列表 */
.onboarding-features {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  max-width: 540px;
  margin: 6px auto 0;
  text-align: left;
}

.onboarding-feature-item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: flex-start;
  gap: 12px;
  min-height: 92px;
  padding: 13px;
  border: none;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.055);
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.9rem;
  line-height: 1.45;
}

.onboarding-feature-primary {
  grid-column: 1 / -1;
  min-height: 86px;
  background: rgba(255, 255, 255, 0.075);
}

.onboarding-feature-mark {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(255, 193, 7, 0.14);
  color: var(--color-saturn-yellow);
  font-size: 0.72rem;
  font-weight: 780;
}

.onboarding-feature-copy {
  min-width: 0;
}

.onboarding-feature-copy strong {
  display: block;
  color: #FFFFFF;
  font-size: 0.88rem;
  line-height: 1.25;
  margin-bottom: 5px;
}

.onboarding-feature-copy span {
  display: block;
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.8rem;
  line-height: 1.42;
}

/* 使用说明列表 */
.onboarding-usage-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  text-align: left;
}

.onboarding-usage-item {
  display: grid;
  gap: 10px;
  min-width: 0;
  padding: 14px;
  border: none;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
}

.onboarding-usage-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(255, 193, 7, 0.14);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-saturn-yellow);
}

.onboarding-usage-item strong {
  display: block;
  color: #FFFFFF;
  font-size: 0.88rem;
  margin-bottom: 5px;
}

.onboarding-usage-item p {
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.8rem;
  line-height: 1.45;
  margin: 0;
}

/* 底部栏：步骤指示器 + 按钮 */
.onboarding-footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 18px;
  padding: 18px 44px 34px;
}

.onboarding-footer-left {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.onboarding-footer-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.onboarding-steps-indicator {
  display: flex;
  gap: 6px;
}

.onboarding-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  cursor: pointer;
  transition: all 0.2s ease;
}

.onboarding-dot.active {
  width: 18px;
  border-radius: 999px;
  background: var(--color-saturn-yellow);
  box-shadow: 0 0 12px rgba(255, 193, 7, 0.38);
}

.onboarding-footer-right {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.onboarding-btn {
  min-width: 132px;
  min-height: 44px;
  padding: 0 22px;
  border-radius: var(--radius-full);
  font-size: 0.92rem;
  font-weight: 720;
  cursor: pointer;
  border: none;
  transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.onboarding-btn-skip {
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.72);
}

.onboarding-btn-skip:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #FFFFFF;
}

.onboarding-btn-next {
  background: #FFFFFF;
  color: #1F1F1F;
}

.onboarding-btn-next:hover {
  background: rgba(255, 255, 255, 0.88);
}

.onboarding-btn-start {
  background: #FFFFFF;
  color: #1F1F1F;
}

.onboarding-btn-start:hover {
  background: rgba(255, 255, 255, 0.88);
}

/* 浅色主题 */
[data-theme="light"] .onboarding-overlay {
  background: rgba(23, 23, 23, 0.34);
}

[data-theme="light"] .onboarding-card {
  background: #242424;
}

@media (max-width: 720px) {
  .onboarding-overlay {
    padding: 12px;
  }

  .onboarding-card {
    width: min(100%, 520px);
    height: calc(100dvh - 24px);
    max-height: calc(100dvh - 24px);
  }

  .onboarding-hero {
    flex-basis: 26%;
    min-height: 0;
  }

  .onboarding-card[data-step="0"] .onboarding-hero {
    flex-basis: 44%;
  }

  /* 内容区可滚动，避免步骤内容被挤压或溢出 */
  .onboarding-body {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 24px 20px 14px;
  }

  .onboarding-card[data-step="0"] .onboarding-body {
    align-items: center;
    justify-content: center;
  }

  .onboarding-step-title {
    font-size: 1.22rem;
    margin-bottom: 6px;
  }

  .onboarding-step-desc {
    max-width: 100%;
    font-size: 0.92rem;
  }

  /* 特色与使用列表在移动端单列、加大间距，给足呼吸感 */
  .onboarding-features {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .onboarding-feature-primary {
    grid-column: auto;
    min-height: 0;
  }

  .onboarding-feature-item {
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 12px;
    padding: 12px 14px;
  }

  .onboarding-usage-list {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .onboarding-usage-item {
    grid-template-columns: 36px minmax(0, 1fr);
    align-items: center;
    text-align: left;
    padding: 12px 14px;
  }

  .onboarding-footer {
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 10px;
    padding: 12px 20px 22px;
  }

  .onboarding-footer-left,
  .onboarding-footer-center,
  .onboarding-footer-right {
    min-width: 0;
  }

  .onboarding-footer-right {
    display: flex;
    justify-content: flex-end;
  }

  .onboarding-btn {
    min-width: 0;
    width: auto;
    padding-inline: 18px;
  }
}

@media (max-width: 768px) {
  .ask-user-card {
    width: 100%;
    margin-left: 0;
  }

  .auth-lang-row {
    width: 100%;
  }

  .auth-lang-text-btn {
    flex: 1;
    min-width: 0;
    padding-inline: 8px;
  }

  .app-update-prompt {
    right: 12px;
    bottom: calc(min(var(--composer-height, 160px), 96px) + 18px + env(safe-area-inset-bottom, 0px));
    left: 12px;
    width: auto;
    align-items: stretch;
    flex-direction: column;
  }

  .app-update-btn {
    width: 100%;
  }

  .toast-notification {
    left: 12px;
    right: 12px;
    bottom: calc(min(var(--composer-height, 160px), 96px) + 18px + env(safe-area-inset-bottom, 0px));
    width: auto;
    max-width: none;
    transform: translateY(24px);
    text-align: center;
    padding: 11px 14px;
    font-size: 13px;
  }

  .toast-notification.show {
    transform: translateY(0);
  }

  .rai-announcement-toast-stack {
    left: 12px;
    right: 12px;
    bottom: calc(min(var(--composer-height, 160px), 96px) + 18px + env(safe-area-inset-bottom, 0px));
    max-width: none;
    gap: 8px;
  }

  .rai-announcement-toast {
    padding: 13px 36px 13px 14px;
    border-radius: 14px;
  }
}

/* ==================== 管理端公告管理 ==================== */
.admin-announcement-toolbar {
  margin-bottom: 14px;
}

.admin-announcement-list {
  display: grid;
  gap: 10px;
}

.admin-announcement-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid var(--border-color);
  background: var(--settings-card-bg);
}

.admin-announcement-title {
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 4px;
}

.admin-announcement-tag-off {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 8px;
  border-radius: 999px;
  background: var(--settings-card-hover);
  color: var(--text-tertiary);
  font-size: 11px;
  font-weight: 600;
}

.admin-announcement-meta {
  color: var(--text-tertiary);
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 6px;
}

.admin-announcement-body {
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.admin-announcement-body-en {
  margin-top: 6px;
  color: var(--text-tertiary);
}

.admin-announcement-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.admin-announcement-form {
  margin-top: 16px;
  padding: 18px;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  background: var(--settings-card-bg);
  display: grid;
  gap: 12px;
}

.admin-announcement-form h4 {
  margin: 0;
  color: var(--text-primary);
  font-size: 15px;
}

.admin-announcement-form label {
  display: grid;
  gap: 6px;
  color: var(--text-secondary);
  font-size: 13px;
}

.admin-announcement-form input[type="text"],
.admin-announcement-form input[type="email"],
.admin-announcement-form input[type="datetime-local"],
.admin-announcement-form textarea,
.admin-announcement-form select {
  width: 100%;
  padding: 9px 12px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
}

.admin-announcement-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.admin-announcement-enable {
  display: flex !important;
  flex-direction: row;
  align-items: center;
  gap: 8px;
}

.admin-announcement-form-actions {
  display: flex;
  gap: 10px;
}

.admin-broadcast-hint {
  color: var(--text-tertiary);
  font-size: 13px;
  line-height: 1.5;
}

.admin-broadcast-form textarea {
  resize: vertical;
  min-height: 108px;
}

.admin-broadcast-actions {
  flex-wrap: wrap;
}

.admin-broadcast-result {
  min-height: 18px;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.5;
}

.admin-broadcast-result.is-success {
  color: var(--color-success);
}

.admin-broadcast-result.is-warning {
  color: var(--color-warning);
}

.admin-broadcast-result.is-error {
  color: var(--error-color);
}

.admin-empty {
  padding: 18px;
  text-align: center;
  color: var(--text-tertiary);
  font-size: 13px;
}

@media (max-width: 720px) {
  .admin-announcement-item {
    grid-template-columns: 1fr;
  }

  .admin-announcement-actions {
    flex-direction: row;
  }

  .admin-announcement-form-row {
    grid-template-columns: 1fr;
  }
}

/* ==================== 标签页动画 / 通知设置 ==================== */
.settings-tab-title-section .tab-title-select {
  width: 100%;
  max-width: 320px;
  margin-top: 8px;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  font-size: 13px;
  cursor: pointer;
  box-sizing: border-box;
}
.settings-tab-title-section .tab-title-select:hover {
  border-color: color-mix(in srgb, var(--text-primary) 24%, transparent);
}
.settings-tab-title-section .memory-add-row {
  margin-top: 10px;
}
.browser-notify-switch {
  flex-shrink: 0;
  min-width: 52px;
  min-height: 32px;
}

/* ==================== RAI 思考内容（正文位置 / 圆角矩形折叠） ==================== */
.rai-reasoning-block {
  margin: 4px 0 10px 18px;
  max-width: 100%;
}
.rai-reasoning-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  background: var(--bg-tertiary);
  border: none;
  border-radius: 999px;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  transition: background 0.2s ease, color 0.2s ease;
  line-height: 1.4;
}
.rai-reasoning-toggle:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}
.rai-reasoning-toggle .rai-reasoning-label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.rai-reasoning-toggle .rai-reasoning-icon {
  display: inline-flex;
  align-items: center;
}
.rai-reasoning-toggle .rai-reasoning-icon svg,
.rai-reasoning-toggle .rai-reasoning-icon .material-symbols-outlined {
  width: 14px;
  height: 14px;
  font-size: 14px;
  opacity: 0.8;
}
.rai-reasoning-toggle .toggle-icon {
  transition: transform 0.3s ease;
  font-size: 11px;
  opacity: 0.7;
}
.rai-reasoning-toggle.expanded .toggle-icon {
  transform: rotate(180deg);
}
.rai-reasoning-content {
  margin-top: 8px;
  padding: 2px 0 2px 14px;
  border-left: 2px solid color-mix(in srgb, var(--text-primary) 12%, transparent);
  background: transparent;
  color: var(--text-secondary);
  font-size: 12.5px;
  line-height: 1.7;
  white-space: pre-wrap;
  word-wrap: break-word;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, opacity 0.3s ease;
}
.rai-reasoning-block.expanded .rai-reasoning-content {
  max-height: min(46vh, 540px);
  opacity: 1;
  overflow-y: auto;
  scroll-padding-top: 8px;
  scroll-padding-bottom: 8px;
}
.rai-reasoning-content .thinking-sentence {
  display: block;
  margin-bottom: 6px;
}
.rai-reasoning-content .thinking-sentence strong {
  font-weight: 600;
  color: color-mix(in srgb, var(--text-primary) 78%, transparent);
}
.rai-reasoning-content .thinking-current-typing {
  opacity: 0.85;
}
.rai-reasoning-content::-webkit-scrollbar { width: 4px; }
.rai-reasoning-content::-webkit-scrollbar-track { background: transparent; }
.rai-reasoning-content::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--text-primary) 20%, transparent);
  border-radius: 2px;
}
[data-theme="light"] .rai-reasoning-content {
  border-left-color: color-mix(in srgb, var(--text-primary) 16%, transparent);
}
@media (max-width: 768px) {
  .rai-reasoning-block { margin-left: 14px; }
  .rai-reasoning-toggle { font-size: 11px; padding: 4px 12px; }
  .rai-reasoning-content { font-size: 12px; }
}

@supports (-webkit-touch-callout: none) {
  input,
  textarea,
  select,
  .form-input,
  .setting-input,
  .message-input,
  .chatflow-message-input,
  .system-prompt-input,
  .feedback-textarea,
  .message-edit-textarea {
    font-size: 16px !important;
  }
}

@media (max-width: 640px) {
  input,
  textarea,
  select,
  .form-input,
  .setting-input,
  .message-input,
  .chatflow-message-input,
  .system-prompt-input,
  .feedback-textarea,
  .message-edit-textarea {
    font-size: 16px !important;
  }
}

/* v0.11.11 mobile UX refresh */
.welcome-screen {
  max-width: 760px;
  justify-content: center;
  padding: 42px 24px;
  text-align: left;
}

.welcome-icon {
  width: 76px;
  height: 76px;
  margin-bottom: 22px;
  animation: none;
  filter: drop-shadow(0 6px 18px rgba(245, 213, 71, 0.18));
}

.welcome-title {
  width: 100%;
  color: var(--text-primary);
  background: none;
  -webkit-background-clip: initial;
  background-clip: initial;
  -webkit-text-fill-color: currentColor;
  animation: none;
  font-size: 34px;
  font-weight: 780;
  letter-spacing: 0;
  line-height: 1.15;
  text-align: center;
}

[data-theme="light"] .welcome-title {
  color: var(--text-primary);
  background: none;
  -webkit-background-clip: initial;
  background-clip: initial;
  -webkit-text-fill-color: currentColor;
  animation: none;
}

.welcome-actions {
  max-width: 600px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 28px;
}

.action-card,
.action-card:nth-child(1),
.action-card:nth-child(2),
.action-card:nth-child(3),
.action-card:nth-child(4) {
  min-width: 0;
  min-height: 54px;
  aspect-ratio: auto;
  padding: 0 14px;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 8px;
  background: color-mix(in srgb, var(--bg-secondary) 92%, var(--text-primary) 2%);
  border: 0;
  color: var(--text-secondary);
  box-shadow: none;
  overflow: hidden;
}

.action-card::before {
  display: none;
}

.action-card:hover {
  color: var(--text-primary);
  transform: translateY(-1px);
  border: 0;
  background: var(--bg-tertiary);
  box-shadow: none;
}

.action-card-icon {
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  color: currentColor;
  background: none;
  -webkit-background-clip: initial;
  background-clip: initial;
  -webkit-text-fill-color: currentColor;
}

[data-theme="light"] .action-card-icon {
  background: none;
  -webkit-background-clip: initial;
  background-clip: initial;
  -webkit-text-fill-color: currentColor;
}

.action-card-title {
  width: auto;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  color: currentColor;
  text-align: center;
  white-space: nowrap;
}

.model-mode-item {
  min-height: 48px;
  /* 20px outer radius - 8px menu padding = 12px concentric inner radius. */
  border-radius: 12px;
}

.model-mode-item + .model-mode-item {
  margin-top: 2px;
}

.model-mode-item.selected {
  background: color-mix(in srgb, var(--text-primary) 11%, transparent);
}

.model-menu-description {
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.reasoning-profile-slider-wrap {
  padding-left: 0;
}

.research-mode-slider-wrap,
.research-model-config {
  padding-left: 32px;
}

.reasoning-profile-slider-wrap.menu-subpanel-hidden {
  max-height: 0;
  opacity: 0;
  transform: translateY(-4px);
  padding-top: 0;
  margin-top: -4px;
  pointer-events: none;
}

.reasoning-profile-labels {
  position: relative;
  display: block;
  height: 30px;
  margin-right: 7px;
  margin-left: 7px;
  margin-top: 8px;
}

.reasoning-profile-labels span {
  position: absolute;
  top: 0;
  width: max-content;
  max-width: 76px;
  text-align: center;
  transform: translateX(-50%);
  white-space: normal;
  line-height: 1.2;
}

.reasoning-profile-labels span:nth-child(1) {
  left: 0;
}

.reasoning-profile-labels span:nth-child(2) {
  left: 33.3333%;
}

.reasoning-profile-labels span:nth-child(3) {
  left: 66.6667%;
}

.reasoning-profile-labels span:nth-child(4),
.research-mode-labels span:nth-child(2) {
  left: 100%;
}

.send-hold-picker {
  position: fixed;
  inset: 0;
  z-index: 5000;
  display: block;
  min-height: 100dvh;
  background:
    linear-gradient(180deg, #101113 0%, #272727 100%);
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity 0.14s ease, transform 0.14s ease;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

.send-hold-picker *,
.send-btn {
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

.send-btn {
  touch-action: manipulation;
}

.send-hold-picker.active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.send-hold-title {
  position: absolute;
  top: max(82px, calc(env(safe-area-inset-top) + 76px));
  left: 0;
  right: 0;
  color: #fff;
  text-align: center;
  font-size: clamp(28px, 8vw, 36px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: 0;
}

.send-hold-stage {
  position: absolute;
  top: max(238px, calc(env(safe-area-inset-top) + 218px));
  right: clamp(22px, 8vw, 68px);
  display: grid;
  grid-template-columns: minmax(126px, 1fr) 88px;
  align-items: start;
  gap: 20px;
}

.send-hold-labels {
  display: grid;
  grid-template-rows: repeat(var(--send-hold-count, 3), 72px);
  align-items: center;
  justify-items: end;
  padding-top: 2px;
}

.send-hold-option {
  border: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.36);
  font: inherit;
  font-size: clamp(26px, 7vw, 39px);
  line-height: 1;
  font-weight: 800;
  letter-spacing: 0;
  cursor: pointer;
  padding: 0;
  text-align: right;
  touch-action: none;
  transition: color 0.12s ease, transform 0.12s ease;
}

.send-hold-option.active {
  color: var(--color-saturn-yellow);
  transform: translateX(-2px);
}

.send-hold-option span {
  display: block;
  white-space: nowrap;
}

.send-hold-control {
  display: grid;
  justify-items: center;
  gap: 30px;
}

.send-hold-rail {
  position: relative;
  width: 88px;
  height: 224px;
  border-radius: 999px;
  background: rgba(86, 86, 86, 0.72);
  display: grid;
  grid-template-rows: repeat(var(--send-hold-count, 3), 1fr);
  justify-items: center;
  align-items: center;
  padding: 0;
}

.send-hold-rail-dot {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background: rgba(185, 185, 185, 0.55);
  opacity: 0.9;
  transition: opacity 0.12s ease, transform 0.12s ease;
}

.send-hold-rail-dot.active {
  opacity: 0;
  transform: scale(0.65);
}

.send-hold-rail-thumb {
  --send-hold-index: 0;
  position: absolute;
  left: 50%;
  top: 0;
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  color: #fff;
  background: var(--color-saturn-yellow);
  box-shadow: 0 10px 24px color-mix(in srgb, var(--color-saturn-yellow) 28%, transparent);
  transform: translate(-50%, calc(var(--send-hold-index) * var(--send-hold-step, 80px)));
  transition: transform 0.12s ease;
}

.send-hold-rail-thumb svg,
.send-hold-cancel svg {
  width: 34px;
  height: 34px;
  fill: currentColor;
}

.send-hold-cancel {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 999px;
  color: #fff;
  background: rgba(86, 86, 86, 0.86);
  cursor: pointer;
  touch-action: manipulation;
}

@media (min-width: 769px) {
  .send-hold-picker.send-hold-picker-desktop {
    inset: auto;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    width: 232px;
    height: 46px;
    min-height: 0;
    padding: 4px;
    border-radius: 999px;
    border: 1px solid color-mix(in srgb, var(--text-primary) 12%, transparent);
    background: color-mix(in srgb, var(--bg-secondary) 92%, transparent);
    box-shadow: var(--floating-menu-shadow);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    transform: translateY(6px) scale(0.96);
  }

  .send-hold-picker.send-hold-picker-desktop.active {
    transform: translateY(0) scale(1);
  }

  .send-hold-picker-desktop .send-hold-option {
    min-width: 0;
    border-radius: 999px;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 760;
    line-height: 1;
    padding: 0 10px;
    text-align: center;
    transform: none;
  }

  .send-hold-picker-desktop .send-hold-option.active {
    background: var(--color-saturn-yellow);
    color: #111;
    transform: none;
  }

  .send-hold-stage {
    top: 238px;
    right: max(56px, calc(50vw - 310px));
  }
}

@media (max-width: 768px) {
  .mobile-header {
    padding-left: 10px;
    padding-right: 10px;
  }

  .mobile-left-controls {
    gap: 5px;
  }

  .mobile-logo {
    font-size: 17px;
    letter-spacing: 0;
  }

  .mobile-center-controls {
    left: calc(50% + 18px);
    width: min(156px, calc(100vw - 216px));
  }

  .mobile-model-selector {
    min-width: 0;
    max-width: 156px;
    height: 32px;
    padding: 0 24px 0 10px;
    border: 1px solid color-mix(in srgb, var(--text-primary) 10%, transparent);
    background: color-mix(in srgb, var(--bg-tertiary) 68%, transparent);
    background-color: color-mix(in srgb, var(--bg-tertiary) 68%, transparent);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
  }

  .mobile-model-selector .model-select-label {
    font-size: 12px;
    font-weight: 720;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .welcome-screen {
    padding: 36px 18px 18px;
    justify-content: flex-start;
  }

  .welcome-icon {
    width: 62px;
    height: 62px;
    margin-bottom: 18px;
  }

  .welcome-title {
    font-size: 28px;
    text-align: left;
  }

  .welcome-actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 9px;
    max-width: 100%;
    margin-top: 22px;
  }

  .action-card {
    min-height: 52px;
    padding: 0 12px;
  }
}

@media (max-width: 390px) {
  .mobile-center-controls {
    left: calc(50% + 14px);
    width: min(132px, calc(100vw - 190px));
  }

  .mobile-model-selector {
    max-width: 132px;
    padding-left: 8px;
    padding-right: 22px;
  }
}

@media (max-width: 860px) {
  .settings-content {
    overflow: hidden;
    min-height: 0;
    overscroll-behavior: contain;
    touch-action: pan-y;
  }

  .settings-sidebar,
  .settings-main {
    height: 100%;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-y;
  }

  .settings-content.settings-swipe-back-dragging .settings-main {
    transition: none;
    transform: translateX(var(--settings-back-drag, 0));
  }

  .settings-content.settings-swipe-back-dragging .settings-sidebar {
    transition: none;
    opacity: 0.18;
    transform: translateX(-12px) scale(0.99);
    filter: blur(0);
  }
}

/* v0.11.13 home shortcuts and settings polish */
.welcome-screen {
  align-items: center;
  text-align: center;
}

.welcome-title {
  text-align: center;
}

.home-action-rail {
  display: none;
}

body.home-screen-active .input-wrapper > .home-action-rail {
  position: absolute;
  left: 0;
  right: 0;
  bottom: calc(100% + 10px);
  z-index: 4;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  width: 100%;
  max-width: 100%;
  margin: 0;
  gap: 10px;
  pointer-events: auto;
}

.input-wrapper > .home-action-rail .action-card {
  min-height: 48px;
  padding: 0 12px;
  border-radius: var(--radius-xl);
}

.settings-panel > .settings-section-intro > h3 {
  display: none;
}

.settings-info-icon {
  width: 22px;
  height: 22px;
  display: block;
}

[data-theme="light"] .settings-info-icon {
  filter: brightness(0) saturate(100%);
}

@media (max-width: 860px) {
  .settings-sidebar,
  .settings-main {
    height: 100%;
    max-height: 100%;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior-y: contain;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-y;
  }

  .settings-sidebar {
    padding-bottom: max(40px, calc(env(safe-area-inset-bottom) + 28px));
  }

  .settings-main {
    padding-bottom: max(40px, calc(env(safe-area-inset-bottom) + 28px));
  }

  .settings-mobile-info-btn {
    border: 0;
    border-radius: 12px;
    background: transparent;
    color: var(--text-secondary);
  }

  .settings-mobile-info-btn:hover {
    background: var(--settings-card-bg);
    color: var(--text-primary);
  }

  .welcome-screen {
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 36px 18px 132px;
  }

  .welcome-title {
    text-align: center;
  }

  body.home-screen-active .input-wrapper > .home-action-rail {
    bottom: calc(100% + 8px);
    gap: 6px;
  }

  .input-wrapper > .home-action-rail .action-card {
    min-height: 42px;
    padding: 0 6px;
    gap: 5px;
  }

  .input-wrapper > .home-action-rail .action-card-icon {
    width: 18px;
    height: 18px;
  }

  .input-wrapper > .home-action-rail .action-card-title {
    font-size: 12px;
  }
}

/* v0.11.14 mobile settings scroll and IA polish */
.settings-panel > .settings-section-row .settings-section-intro > h3,
.settings-panel > .settings-group > .settings-section-row .settings-section-intro > h3 {
  display: none;
}

.settings-mobile-plan {
  display: inline-flex;
  align-items: center;
  min-height: 18px;
  padding: 0 7px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--text-primary) 12%, transparent);
  color: var(--text-secondary);
  font-size: 10px;
  font-weight: 820;
  line-height: 1;
  text-transform: uppercase;
  flex: 0 0 auto;
}

.settings-mobile-plan.pro {
  background: rgba(47, 134, 232, 0.18);
  color: #5aa4ff;
}

.settings-mobile-plan.max {
  background: rgba(225, 174, 58, 0.2);
  color: #e5bd58;
}

@media (max-width: 860px) {
  .settings-modal.active,
  .settings-modal.closing {
    height: var(--app-height, 100dvh);
    min-height: 0;
    overflow: hidden;
  }

  .settings-content {
    height: calc(var(--app-height, 100dvh) - 12px);
    max-height: calc(var(--app-height, 100dvh) - 12px);
    min-height: 0;
    overflow: hidden;
  }

  .settings-sidebar,
  .settings-main {
    height: 100%;
    min-height: 0;
    max-height: 100%;
    overflow-x: hidden;
    overflow-y: auto !important;
    overscroll-behavior-y: contain;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-y;
  }

  .settings-content.mobile-home .settings-sidebar {
    display: block;
    padding-top: max(92px, calc(env(safe-area-inset-top) + 76px));
    padding-bottom: max(128px, calc(env(safe-area-inset-bottom) + 120px));
  }

  .settings-content.mobile-detail .settings-main {
    padding-bottom: max(96px, calc(env(safe-area-inset-bottom) + 88px));
  }

  .settings-content.mobile-home .settings-nav,
  .settings-content.mobile-home .settings-nav-group {
    overflow: visible !important;
    max-height: none;
  }

  .settings-content.mobile-home .settings-nav {
    display: flex;
    flex-direction: column;
  }

  .settings-mobile-account-card {
    min-height: 54px;
    padding: 0 8px;
    border: 0;
    border-radius: 0;
    background: transparent;
    gap: 12px;
  }

  .settings-mobile-account-card:hover {
    background: transparent;
  }

  .settings-mobile-account-copy {
    gap: 4px;
  }

  .settings-mobile-account-line {
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .settings-mobile-account-copy strong {
    min-width: 0;
    font-size: 16px;
    line-height: 1.2;
  }

  .settings-mobile-account-copy > span:not(.settings-mobile-account-line) {
    font-size: 13px;
    line-height: 1.2;
  }

  .settings-mobile-upgrade-card {
    display: none !important;
  }

  .settings-mobile-info-btn {
    border: 0 !important;
    border-radius: 12px;
  }
}

/* v0.11.15 mobile settings detail header mask */
@media (max-width: 860px) {
  .settings-content.mobile-detail .settings-sidebar {
    z-index: 0;
    visibility: hidden;
    opacity: 0 !important;
    pointer-events: none;
  }

  .settings-content.mobile-detail .settings-main {
    z-index: 2;
    isolation: isolate;
    padding-top: 0;
    background: var(--settings-mobile-app-bg);
  }

  .settings-content.mobile-detail .settings-main-header {
    position: sticky;
    top: 0;
    z-index: 5;
    min-height: 80px;
    margin: 0 -32px 20px;
    padding: max(18px, calc(env(safe-area-inset-top) + 12px)) 32px 0;
    background: var(--settings-mobile-app-bg);
    border-bottom: 1px solid var(--settings-divider);
  }

  .settings-content.mobile-detail .settings-panel-container {
    position: relative;
    z-index: 1;
  }
}

/* v0.11.16 mobile settings home header sticks while scrolling */
@media (max-width: 860px) {
  .settings-content.mobile-home .settings-sidebar {
    padding-top: 0;
  }

  .settings-content.mobile-home .settings-mobile-chrome {
    position: sticky;
    top: 0;
    z-index: 8;
    height: max(86px, calc(env(safe-area-inset-top) + 74px));
    margin: 0 -32px 18px;
    padding: max(18px, calc(env(safe-area-inset-top) + 12px)) 32px 0;
    background: var(--settings-mobile-app-bg);
    border-bottom: 1px solid var(--settings-divider);
    border-radius: 28px 28px 0 0;
  }

  .settings-content.mobile-home .settings-close-btn {
    top: max(18px, calc(env(safe-area-inset-top) + 12px));
  }

  .settings-content.mobile-home .settings-mobile-info-btn {
    top: max(19px, calc(env(safe-area-inset-top) + 13px));
  }
}

/* Neutral, accessible focus treatment for form controls. */
:where(
  input:not([type="range"]):not([type="checkbox"]):not([type="radio"]):not([type="file"]):not([type="hidden"]):not(#searchInput):not(#settingsSearchInput):not(.ask-user-input),
  textarea:not(.message-input):not(.chatflow-message-input),
  select,
  [contenteditable="true"]
):focus {
  outline: 2px solid var(--focus-ring-color) !important;
  outline-offset: 2px !important;
  border-color: var(--focus-border-color) !important;
  box-shadow: none !important;
}

.search-box:focus-within,
.settings-search:focus-within,
.ask-user-custom:focus-within,
.chatflow-input-container:focus-within {
  outline: 2px solid var(--focus-ring-color);
  outline-offset: 2px;
}

.chatflow-input-container:focus-within {
  border-color: var(--focus-border-color);
}

/* The primary composer intentionally has no sharp focus outline. Keep this
   explicit final override so future shared focus selectors cannot restore it. */
.input-container:focus-within {
  outline: none !important;
  outline-offset: 0 !important;
}

/* ---- CRF 导入导出 toast ---- */
.crf-toast { position: fixed; top: 20px; left: 50%; transform: translateX(-50%); z-index: 99999; padding: 12px 20px; border-radius: 10px; font-size: 14px; color: #fff; box-shadow: 0 6px 24px rgba(0,0,0,.35); max-width: 90vw; transition: opacity .4s; }
.crf-toast-ok { background: #16a34a; }
.crf-toast-bad { background: #dc2626; }
.crf-toast-warn { background: #d97706; }
.crf-toast-info { background: #1d4ed8; }
.crf-toast-hide { opacity: 0; }

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* ==================== RAI guide mascot + native tap target ==================== */
.rai-guide-mascot {
  --rai-mascot-size: 58px;
  position: fixed;
  left: 16px;
  top: 16px;
  z-index: 2120;
  display: none;
  width: var(--rai-mascot-size);
  height: var(--rai-mascot-size);
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--color-saturn-yellow);
  cursor: pointer;
  touch-action: manipulation;
  overflow: visible;
  filter: drop-shadow(0 7px 11px rgba(0, 0, 0, 0.22));
  -webkit-user-select: none;
  user-select: none;
}

.rai-guide-mascot.is-dwell {
  touch-action: none;
}

.rai-guide-mascot.is-dragging {
  cursor: grabbing;
  filter: drop-shadow(0 10px 14px rgba(0, 0, 0, 0.28));
}

.rai-guide-mascot:not([hidden]) {
  display: block;
}

.rai-guide-mascot:focus-visible {
  outline: 2px solid var(--focus-ring-color);
  outline-offset: 4px;
}

.rai-guide-mascot.is-auth {
  z-index: 2100;
}

.rai-guide-mascot.is-dwell {
  z-index: 130;
}

.rai-guide-mascot.is-obscured {
  visibility: hidden;
  pointer-events: none;
}

.rai-guide-mascot.is-guide {
  z-index: 5400;
}

.rai-guide-mascot.is-menu-preview-hidden {
  visibility: hidden;
  pointer-events: none;
}

.rai-mascot-svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

/* ===== 茶（MasterTea）桌宠：UWP DesktopPet 状态机移植（idle1-4/hello/chat/desktop）===== */
.rai-tea-pet {
  display: none;
  position: relative;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.rai-tea-pet-layer {
  position: absolute;
  inset: 0;
  background-repeat: no-repeat;
  background-position: center bottom;
  background-size: contain;
  opacity: 0;
  /* 无过渡：交叉溶解中间态会让透明背景图整体发白闪烁（白底网页上尤其明显）。
     改为硬切——两帧 512×512 锚点一致，原地变脸，无中间态、无发白。 */
  will-change: opacity;
}

.rai-tea-pet-layer[data-visible="1"] {
  opacity: 1;
}

.rai-guide-mascot[data-pet-type="tea"].is-dwell .rai-mascot-svg {
  display: none;
}

.rai-guide-mascot[data-pet-type="tea"].is-dwell {
  --rai-mascot-size: 88px;
}

.rai-guide-mascot[data-pet-type="tea"].is-dwell .rai-tea-pet {
  display: block;
}

/* 降级：无 JS / reduced-motion 时至少显示第一帧 idle */
.rai-tea-pet[data-tea-state] .rai-tea-pet-layer[data-tea-layer="0"] {
  background-image: url('images/pets/MasterTea1.webp');
}

.rai-guide-mascot[data-pet-type="tea"][data-tea-state="hello"] .rai-tea-pet-layer[data-tea-layer="0"] {
  background-image: url('images/pets/MasterTeaHello.webp');
}

.rai-pet-context-menu {
  position: fixed;
  z-index: 5500;
  min-width: 132px;
  padding: 5px;
  border: 1px solid color-mix(in srgb, var(--text-primary) 12%, transparent);
  border-radius: 8px;
  background: color-mix(in srgb, var(--bg-secondary) 96%, transparent);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.26);
  backdrop-filter: blur(14px);
}

.rai-pet-context-menu button {
  width: 100%;
  min-height: 36px;
  padding: 0 10px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: var(--text-primary);
  font: inherit;
  font-size: 13px;
  text-align: left;
  cursor: pointer;
}

.rai-pet-context-menu button:hover,
.rai-pet-context-menu button:focus-visible {
  outline: none;
  background: var(--bg-tertiary);
}

.settings-pet-picker {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: -4px 0 14px;
}

.settings-pet-option {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  min-height: 54px;
  padding: 7px 10px;
  border: 1px solid var(--settings-divider);
  border-radius: 8px;
  background: var(--settings-row-bg);
  color: var(--text-primary);
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}

.settings-pet-option[aria-checked="true"] {
  border-color: var(--color-saturn-yellow);
  box-shadow: inset 0 0 0 1px var(--color-saturn-yellow);
}

.settings-pet-option:disabled {
  cursor: default;
  opacity: 0.48;
}

.settings-pet-preview {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 38px;
  width: 38px;
  height: 38px;
  overflow: hidden;
}

.settings-pet-preview-saturn {
  border-radius: 50%;
  background: var(--color-saturn-yellow);
  color: #30240d;
  font-size: 10px;
  font-weight: 900;
}

.settings-pet-preview-tea {
  background: url('images/pets/MasterTea1.webp') center bottom / contain no-repeat;
  transform: scale(1.28);
  transform-origin: center bottom;
}

.rai-mascot-ring {
  vector-effect: non-scaling-stroke;
}

.rai-mascot-planet {
  transform-box: fill-box;
  transform-origin: center;
}

.rai-mascot-pupil,
.rai-mascot-eye-glint {
  transform-box: fill-box;
  transform-origin: center;
  transition: transform 180ms ease, opacity 120ms ease;
}

.rai-mascot-eyelid {
  opacity: 0;
  transform-box: fill-box;
  transform-origin: center;
  transition: opacity 0.12s ease;
}

.rai-guide-mascot.is-blinking .rai-mascot-eyelid {
  opacity: 1;
}

.rai-guide-mascot.is-blinking .rai-mascot-pupil,
.rai-guide-mascot.is-blinking .rai-mascot-eye-glint {
  opacity: 0;
}

.rai-guide-mascot.is-looking-left .rai-mascot-pupil,
.rai-guide-mascot.is-looking-left .rai-mascot-eye-glint {
  transform: translateX(-4px);
}

.rai-guide-mascot.is-looking-right .rai-mascot-pupil,
.rai-guide-mascot.is-looking-right .rai-mascot-eye-glint {
  transform: translateX(4px);
}

.rai-guide-mascot.is-guide-hop {
  animation: raiMascotGuideHop 760ms cubic-bezier(0.2, 0.9, 0.25, 1.05);
}

.rai-guide-mascot.is-tap-hop {
  animation: raiMascotTapHop 600ms cubic-bezier(0.2, 0.9, 0.25, 1.05);
}

.rai-guide-mascot.is-sidebar-demo-drag {
  animation: raiMascotSidebarDemoDrag 760ms cubic-bezier(0.2, 0.9, 0.25, 1);
}

@keyframes raiMascotGuideHop {
  0%, 100% { transform: translate3d(0, 0, 0) rotate(0deg); }
  32% { transform: translate3d(0, -12px, 0) rotate(-2deg); }
  60% { transform: translate3d(0, 1px, 0) rotate(1deg); }
  82% { transform: translate3d(0, -3px, 0) rotate(0deg); }
}

@keyframes raiMascotTapHop {
  0%, 100% { transform: translateY(0); }
  45% { transform: translateY(-8px); }
  72% { transform: translateY(1px); }
}

@keyframes raiMascotSidebarDemoDrag {
  0% { transform: translateX(0) rotate(0deg); }
  48% { transform: translateX(34px) rotate(-4deg); }
  78% { transform: translateX(52px) rotate(2deg); }
  100% { transform: translateX(42px) rotate(0deg); }
}

.rai-mascot-speech {
  position: absolute;
  right: calc(100% + 10px);
  top: 50%;
  width: max-content;
  max-width: min(260px, 64vw);
  padding: 11px 13px;
  border-radius: 12px 12px 3px 12px;
  background: color-mix(in srgb, var(--bg-secondary) 94%, #000 6%);
  color: var(--text-primary);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.28);
  text-align: left;
  transform: translateY(-50%);
  pointer-events: none;
}

.rai-mascot-speech strong,
.rai-mascot-speech span {
  display: block;
}

.rai-mascot-speech strong {
  color: var(--color-saturn-yellow);
  font-size: 13px;
  line-height: 1.25;
}

.rai-mascot-speech span {
  margin-top: 3px;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.45;
}

.rai-guide-mascot.speech-right .rai-mascot-speech {
  right: auto;
  left: calc(100% + 10px);
  border-radius: 12px 12px 12px 3px;
}

.rai-guide-mascot.speech-left .rai-mascot-speech {
  right: calc(100% + 10px);
  left: auto;
  border-radius: 12px 12px 3px 12px;
}

.rai-guide-mascot.speech-above .rai-mascot-speech {
  right: auto;
  bottom: calc(100% + 10px);
  left: 50%;
  top: auto;
  border-radius: 12px 12px 12px 3px;
  transform: translateX(-50%);
}

@media (max-width: 768px) {
  .rai-guide-mascot {
    --rai-mascot-size: 48px;
  }

  .rai-guide-mascot[data-pet-type="tea"].is-dwell {
    --rai-mascot-size: 76px;
  }

  body.rai-guide-teaching-active .welcome-actions {
    visibility: hidden;
  }
}

.rai-guide-mask {
  position: fixed;
  inset: 0;
  z-index: 5100;
  display: none;
  pointer-events: none;
}

.rai-guide-mask.active {
  display: block;
}

.rai-guide-mask-pane {
  position: fixed;
  background: rgba(5, 6, 4, 0.46);
  pointer-events: auto;
  touch-action: none;
}

.more-menu.rai-guide-readonly .more-menu-item {
  pointer-events: none;
}

.rai-guide-ring {
  position: fixed;
  z-index: 5300;
  display: none;
  min-width: 12px;
  min-height: 12px;
  border: 2px solid var(--color-saturn-yellow);
  border-radius: 12px;
  box-shadow: 0 0 0 4px rgba(255, 193, 7, 0.16), 0 0 22px rgba(255, 193, 7, 0.42);
  pointer-events: none;
}

.rai-guide-ring.active {
  display: block;
  animation: raiGuideRingPulse 1.35s ease-in-out infinite;
}

.rai-guide-ring.static {
  animation: none;
  box-shadow: 0 0 0 4px rgba(255, 193, 7, 0.14);
}

@keyframes raiGuideRingPulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(255, 193, 7, 0.16), 0 0 22px rgba(255, 193, 7, 0.42); }
  50% { box-shadow: 0 0 0 9px rgba(255, 193, 7, 0.04), 0 0 30px rgba(255, 193, 7, 0.18); }
}

.rai-guide-focus {
  outline: none !important;
  outline-offset: 0 !important;
}

.onboarding-teaching-panel {
  display: none;
  position: fixed;
  top: max(24px, calc(env(safe-area-inset-top, 0px) + 16px));
  left: max(24px, calc(env(safe-area-inset-left, 0px) + 16px));
  z-index: 5200;
  width: min(390px, calc(100vw - 48px));
  padding: 20px 22px;
  border: 1px solid color-mix(in srgb, var(--text-primary) 9%, transparent);
  border-radius: 16px;
  background: color-mix(in srgb, var(--bg-secondary) 96%, #000 4%);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.34);
  text-align: left;
  pointer-events: none;
}

.onboarding-teaching-panel[hidden] {
  display: none !important;
}

.onboarding-teaching-kicker {
  color: var(--color-saturn-yellow);
  font-size: 0.75rem;
  font-weight: 780;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.onboarding-teaching-title {
  margin-top: 7px;
  color: #fff;
  font-size: 1.18rem;
  line-height: 1.25;
}

.onboarding-teaching-desc {
  max-width: 440px;
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.88rem;
  line-height: 1.55;
}

.onboarding-teaching-status {
  min-height: 8px;
  margin-top: 14px;
  color: rgba(255, 255, 255, 0.48);
  font-size: 0.74rem;
}

.onboarding-card.guide-teaching {
  display: contents;
}

.onboarding-card.guide-teaching .onboarding-hero,
.onboarding-card.guide-teaching .onboarding-body {
  display: none;
}

.onboarding-card.guide-teaching .onboarding-teaching-panel {
  display: block;
}

.onboarding-card.guide-teaching .onboarding-footer {
  display: contents;
}

.onboarding-card.guide-teaching .onboarding-footer-left {
  position: fixed;
  top: max(24px, calc(env(safe-area-inset-top, 0px) + 16px));
  right: max(24px, calc(env(safe-area-inset-right, 0px) + 16px));
  z-index: 5200;
  pointer-events: auto;
}

.onboarding-card.guide-teaching .onboarding-footer-center,
.onboarding-card.guide-teaching .onboarding-footer-right {
  display: none;
}

.onboarding-overlay.teaching {
  z-index: 5000;
  align-items: initial;
  padding: 0;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  pointer-events: none;
}

.onboarding-overlay.guide-targeting {
  z-index: 5000;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  pointer-events: none;
}

.onboarding-overlay.guide-targeting .onboarding-card {
  pointer-events: none;
}

.onboarding-overlay.guide-targeting .onboarding-btn-next,
.onboarding-overlay.guide-targeting .onboarding-btn-start,
.onboarding-overlay.guide-targeting .onboarding-btn-skip {
  position: relative;
  z-index: 5301;
  pointer-events: auto;
}

.onboarding-overlay.teaching .onboarding-card {
  pointer-events: none;
}

.onboarding-overlay.teaching .onboarding-btn-skip {
  position: relative;
  z-index: 5200;
}

.onboarding-btn-skip {
  position: relative;
  z-index: 2150;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

@media (max-width: 768px) {
  .rai-guide-mascot {
    --rai-mascot-size: 48px;
  }

  .rai-guide-mascot[data-pet-type="tea"].is-dwell {
    --rai-mascot-size: 76px;
  }

  .rai-mascot-speech {
    max-width: min(210px, 68vw);
    padding: 8px 10px;
  }

  .onboarding-card.guide-teaching {
    display: contents;
  }

  .onboarding-card.guide-teaching .onboarding-teaching-panel {
    top: max(72px, calc(env(safe-area-inset-top, 0px) + 64px));
    left: 12px;
    width: calc(100vw - 24px);
    max-height: min(132px, calc(100dvh - 168px));
    overflow: hidden auto;
    padding: 15px 16px;
    border-radius: 14px;
  }

  .onboarding-card.guide-teaching .onboarding-footer-left {
    top: max(12px, calc(env(safe-area-inset-top, 0px) + 8px));
    right: 12px;
  }

  .rai-guide-mascot.is-guide .rai-mascot-speech {
    display: none !important;
  }

  .onboarding-card.guide-teaching .onboarding-btn-skip {
    min-width: 0;
    min-height: 42px;
    padding: 0 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .onboarding-overlay,
  .onboarding-card,
  .onboarding-step.active,
  .sidebar,
  .mobile-overlay {
    animation: none !important;
    transition-duration: 0.01ms !important;
  }

  .rai-guide-mascot.is-guide-hop,
  .rai-guide-mascot.is-tap-hop,
  .rai-guide-mascot.is-sidebar-demo-drag,
  .rai-guide-mascot.is-dragging,
  .rai-guide-ring.active {
    animation: none !important;
  }

  .rai-mascot-eyelid,
  .rai-mascot-pupil,
  .rai-mascot-eye-glint {
    transition: none !important;
  }

  .rai-guide-focus {
    outline-offset: 3px !important;
  }
}