@import "tailwindcss";

/* ==================== Author 设计系统 ==================== */

:root {
  /* 基础动画曲线: 更加丝滑的弹性反馈 */
  --transition-fast: 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.4s cubic-bezier(0.16, 1, 0.3, 1);

  --font-writing: 'Noto Serif SC', 'Source Han Serif SC', 'STSong', Georgia, serif;
  --font-ui: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;

  --editor-font-size: 17px;
  --editor-line-height: 1.9;
  --editor-max-width: 816px;
}

/* 默认 / 经典暖纸模式 (Warm Classic) */
:root,
[data-visual="warm"] {
  --bg-primary: #faf8f5;
  --bg-secondary: #f5f0ea;
  --bg-editor: #fffdf9;
  --bg-sidebar: #f7f3ed;
  --bg-hover: #efe9e0;
  --bg-active: #e8dfd3;
  --bg-card: #ffffff;
  --bg-canvas: #e8e4df;
  --bg-glass: rgba(250, 248, 245, 0.85);

  --text-primary: #2c2417;
  --text-secondary: #6b5e4f;
  --text-muted: #9a8d7e;
  --text-inverse: #faf8f5;

  --border-light: #e5ddd2;
  --border-medium: #d4c9ba;
  --border-glass: rgba(229, 221, 210, 0.5);

  --accent: #c4956a;
  --accent-hover: #b38358;
  --accent-light: rgba(196, 149, 106, 0.15);
  --accent-glow: rgba(196, 149, 106, 0.3);

  --shadow-sm: 0 1px 3px rgba(44, 36, 23, 0.06);
  --shadow-md: 0 4px 12px rgba(44, 36, 23, 0.08);
  --shadow-lg: 0 12px 32px rgba(44, 36, 23, 0.12);
  --shadow-page: 0 8px 30px rgba(44, 36, 23, 0.08), 0 1px 3px rgba(44, 36, 23, 0.04);

  --success: #2ea043;
  --error: #c46a6a;
  --info: #3b82f6;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 99px;
}

/* 暖色纸张 暗色模式 */
[data-visual="warm"][data-theme="dark"],
:root[data-theme="dark"] {
  --bg-primary: #1a1814;
  --bg-secondary: #221f1a;
  --bg-editor: #1e1b17;
  --bg-sidebar: #16140f;
  --bg-hover: #2a2620;
  --bg-active: #33302a;
  --bg-card: #242019;
  --bg-canvas: #121010;
  --bg-glass: rgba(26, 24, 20, 0.85);

  --text-primary: #e8e0d4;
  --text-secondary: #a89a88;
  --text-muted: #756a5c;
  --text-inverse: #1a1814;

  --border-light: #33302a;
  --border-medium: #443f36;
  --border-glass: rgba(51, 48, 42, 0.5);

  --accent: #d4a87a;
  --accent-hover: #e0b88a;
  --accent-light: rgba(212, 168, 122, 0.15);
  --accent-glow: rgba(212, 168, 122, 0.25);

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
  --shadow-page: 0 8px 30px rgba(0, 0, 0, 0.5), 0 1px 3px rgba(0, 0, 0, 0.3);

  --success: #3fb950;
  --error: #e07070;
  --info: #60a5fa;
}

/* 现代极简透玻璃主题 (Modern Glass) */
[data-visual="modern"] {
  --bg-primary: #fcfcfd;
  --bg-secondary: #f2f3f5;
  --bg-editor: #ffffff;
  --bg-sidebar: #f7f8f9;
  --bg-hover: #e8eaed;
  --bg-active: #dfe1e5;
  --bg-card: #ffffff;
  --bg-canvas: #eaebed;
  --bg-glass: rgba(255, 255, 255, 0.7);

  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  --text-inverse: #ffffff;

  --border-light: #e5e7eb;
  --border-medium: #d1d5db;
  --border-glass: rgba(255, 255, 255, 0.5);

  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-light: rgba(59, 130, 246, 0.1);
  --accent-glow: rgba(59, 130, 246, 0.25);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
  --shadow-page: 0 10px 40px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.02);

  --success: #16a34a;
  --error: #dc2626;
  --info: #2563eb;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-full: 99px;
}

/* 现代主题 暗色模式 */
[data-visual="modern"][data-theme="dark"] {
  --bg-primary: #111111;
  --bg-secondary: #1a1a1a;
  --bg-editor: #161616;
  --bg-sidebar: #141414;
  --bg-hover: #262626;
  --bg-active: #333333;
  --bg-card: #222222;
  --bg-canvas: #0a0a0a;
  --bg-glass: rgba(22, 22, 22, 0.7);

  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --text-inverse: #111111;

  --border-light: #2d2d2d;
  --border-medium: #404040;
  --border-glass: rgba(255, 255, 255, 0.08);

  --accent: #60a5fa;
  --accent-hover: #93c5fd;
  --accent-light: rgba(96, 165, 250, 0.15);
  --accent-glow: rgba(96, 165, 250, 0.25);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.6);
  --shadow-page: 0 10px 40px rgba(0, 0, 0, 0.7), 0 1px 3px rgba(0, 0, 0, 0.5);

  --success: #3fb950;
  --error: #f87171;
  --info: #93c5fd;
}

/* ==================== 基础样式 ==================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}



body {
  font-family: var(--font-ui);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background var(--transition-normal), color var(--transition-normal);
}

::selection {
  background: var(--accent-light);
  color: var(--text-primary);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border-medium);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ==================== 布局 ==================== */

.app-layout {
  display: flex;
  flex-direction: column;
  /* Google Docs 风格：纵向布局 */
  height: 100vh;
  overflow: hidden;
  position: relative;
}

/* ===== 顶栏（Google Docs 风格）===== */
.top-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  background: var(--bg-sidebar);
  border-bottom: 1px solid var(--border-light);
  flex-shrink: 0;
  z-index: 40;
}

.top-header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-toggle-btn {
  font-size: 18px;
  padding: 6px 8px;
}

.top-header-logo {
  font-family: var(--font-writing);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 1px;
}

.top-header-logo span {
  color: var(--accent);
}

/* ===== 内容区（编辑器 + AI 侧栏）===== */
.content-row {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  position: relative;
}

/* 侧边栏：覆盖在 editor-container 上方，不覆盖工具栏 */
.sidebar {
  position: absolute;
  top: var(--toolbar-h, 90px);
  left: 0;
  bottom: 0;
  width: 280px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, opacity 0.25s ease;
  z-index: 25;
  overflow: hidden;
  transform: translateX(0);
  box-shadow: 2px 0 8px rgba(0, 0, 0, 0.08);
}

.sidebar.collapsed {
  transform: translateX(-100%);
  opacity: 0;
  pointer-events: none;
}

/* 侧边栏顶部关闭行 */
.sidebar-top-row {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 4px 8px;
  flex-shrink: 0;
}

/* ☰ 展开按钮（工具栏下方左侧浮动） */
.sidebar-open-btn {
  position: absolute;
  top: calc(var(--toolbar-h, 90px) + 4px);
  left: 4px;
  z-index: 20;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 50%;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
  transition: background 0.2s, color 0.2s;
}

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

/* 保留旧选择器以免其他地方使用 */
.sidebar-header {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-logo {
  font-family: var(--font-writing);
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 1px;
}

.sidebar-logo span {
  color: var(--accent);
}

.sidebar-content {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
}

.sidebar-footer {
  padding: 12px;
  border-top: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ==================== 章节列表 ==================== */

.chapter-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.chapter-item {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 14px;
}

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

.chapter-item.active {
  background: var(--accent-light);
  color: var(--accent);
  font-weight: 500;
}

.chapter-item .chapter-title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chapter-item .chapter-count {
  font-size: 11px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.chapter-item .chapter-actions {
  display: none;
  gap: 4px;
  flex-shrink: 0;
}

.chapter-item:hover .chapter-actions {
  display: flex;
}

.chapter-item:hover .chapter-count {
  display: none;
}

/* ==================== Google Docs 风格侧边栏 ==================== */

/* 区域标题栏 */
.gdocs-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px 4px;
  flex-shrink: 0;
}

.gdocs-section-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.gdocs-section-add {
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: var(--text-secondary);
  font-size: 18px;
  font-weight: 300;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, color 0.15s;
}

.gdocs-section-add:hover {
  background: var(--bg-hover);
  color: var(--accent);
}

/* Tab 列表 */
.gdocs-tab-list {
  overflow-y: auto;
  flex: 1;
  min-height: 0;
  padding: 0 6px;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

/* Tab 列表项 */
.gdocs-tab-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 20px;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 13px;
  transition: background 0.15s, color 0.15s;
}

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

.gdocs-tab-item.active {
  background: #e8f0fe;
  color: #1967d2;
  font-weight: 500;
}

[data-theme="dark"] .gdocs-tab-item.active {
  background: rgba(138, 180, 248, 0.12);
  color: #8ab4f8;
}

.gdocs-tab-icon {
  font-size: 16px;
  flex-shrink: 0;
}

.gdocs-tab-title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.gdocs-tab-badge {
  font-size: 10px;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  border-radius: 8px;
  background: var(--text-muted);
  color: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-weight: 600;
}

.gdocs-tab-item.active .gdocs-tab-badge {
  background: #1967d2;
  color: #fff;
}

[data-theme="dark"] .gdocs-tab-item.active .gdocs-tab-badge {
  background: #8ab4f8;
  color: #202124;
}

/* 章节操作按钮组（直接显示在右侧） */
.gdocs-tab-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
  opacity: 0;
  transition: opacity 0.15s;
}

.gdocs-tab-item:hover .gdocs-tab-actions {
  opacity: 1;
}

.gdocs-tab-action-btn {
  width: 22px;
  height: 22px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  font-size: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.15s, transform 0.1s;
  padding: 0;
  line-height: 1;
}

.gdocs-tab-action-btn:hover {
  background: var(--bg-hover);
  transform: scale(1.1);
}

.gdocs-tab-action-btn.danger:hover {
  background: rgba(248, 113, 113, 0.15);
}

/* 章节分组容器（展开/收起） */
.gdocs-tab-group {
  display: flex;
  flex-direction: column;
}

/* ▶ 展开箭头 */
.gdocs-tab-arrow {
  font-size: 8px;
  flex-shrink: 0;
  width: 16px;
  text-align: center;
  color: var(--text-muted);
  transition: transform 0.15s ease;
}

/* 内联大纲列表 */
.gdocs-outline-inline {
  display: flex;
  flex-direction: column;
  padding: 2px 0 4px;
}

/* ⋮ 弹出菜单 */
.gdocs-tab-dropdown {
  position: absolute;
  right: 0;
  top: 100%;
  margin-top: 2px;
  min-width: 140px;
  z-index: 100;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 4px;
}

/* ===== 文档大纲区域 ===== */
.gdocs-outline-section {
  border-top: 1px solid var(--border-light);
  padding: 8px 0;
  flex-shrink: 0;
  max-height: 40%;
  overflow-y: auto;
}

.gdocs-outline-section::before {
  content: '大纲';
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 0 12px 4px;
}

.gdocs-outline-empty {
  padding: 12px 16px;
  font-size: 12px;
  color: var(--text-muted);
  font-style: italic;
  line-height: 1.5;
}

.gdocs-outline-list {
  display: flex;
  flex-direction: column;
}

.gdocs-outline-item {
  padding: 5px 12px;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  border-left: 2px solid transparent;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: background 0.12s, color 0.12s, border-color 0.12s;
}

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

.gdocs-outline-item.active {
  color: #1967d2;
  border-left-color: #1967d2;
  font-weight: 500;
  background: rgba(25, 103, 210, 0.04);
}

[data-theme="dark"] .gdocs-outline-item.active {
  color: #8ab4f8;
  border-left-color: #8ab4f8;
  background: rgba(138, 180, 248, 0.06);
}

/* ==================== 主内容区 ==================== */

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  position: relative;
}

.editor-toolbar {
  padding: 8px 20px;
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-secondary);
  display: flex;
  position: relative;
  z-index: 40;
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex-wrap: wrap;
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 2px;
}

.toolbar-divider {
  width: 1px;
  height: 20px;
  background: var(--border-light);
  margin: 0 6px;
}

.toolbar-btn {
  padding: 6px 8px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 32px;
}

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

.toolbar-btn.active {
  background: var(--accent-light);
  color: var(--accent);
}

/* 工具栏下拉容器 */
.toolbar-dropdown-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.toolbar-dropdown-btn {
  font-size: 12px !important;
  gap: 4px;
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dropdown-arrow {
  font-size: 9px;
  opacity: 0.5;
  margin-left: 2px;
}

/* 工具栏下拉菜单 */
.toolbar-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 4px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 180px;
  z-index: 60;
  padding: 4px;
  animation: fadeIn 0.12s ease;
}

.toolbar-dropdown-item {
  display: block;
  width: 100%;
  padding: 8px 12px;
  border: none;
  background: transparent;
  text-align: left;
  color: var(--text-primary);
  font-size: 13px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.1s;
  font-family: var(--font-ui);
}

.toolbar-dropdown-item:hover {
  background: var(--bg-hover);
}

.toolbar-dropdown-item.active {
  background: var(--accent-light);
  color: var(--accent);
  font-weight: 600;
}

/* 颜色按钮 */
.toolbar-color-btn {
  gap: 2px !important;
  font-weight: 700;
}

/* 颜色选择器浮层 */
.color-picker-popover {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-top: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 12px;
  z-index: 60;
  min-width: 200px;
  animation: fadeIn 0.12s ease;
}

.color-picker-label {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 8px;
  font-weight: 500;
}

.color-picker-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 4px;
  margin-bottom: 8px;
}

.color-swatch {
  width: 28px;
  height: 28px;
  border-radius: 4px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.1s;
}

.color-swatch:hover {
  transform: scale(1.15);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.color-swatch.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-light);
}

.color-picker-clear {
  width: 100%;
  padding: 5px 0;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
  font-size: 11px;
  font-family: var(--font-ui);
  cursor: pointer;
  transition: all 0.15s;
}

.color-picker-clear:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* ==================== 虚拟分页层系统 ==================== */

.editor-container {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 40px 16px 80px;
  background: var(--bg-canvas) !important;
  transition: background var(--transition-normal), margin-right 0.3s ease;
  /* 禁用滚动锚定，防止虚拟分页元素重排时导致原生滚动条跳动 */
  overflow-anchor: none;
}

/* AI 侧栏打开时，仅编辑区域收缩（工具栏保持全宽，Google Docs 风格） */
/* 现已改用 flex 布局，不再需要手动 margin */


/* 统率背景卡片和文本的包裹层 */
.document-workspace {
  position: relative;
  width: 100%;
  max-width: var(--editor-max-width);
  margin: 0 auto;
  cursor: text;
  /* 禁用滚动锚定 */
  overflow-anchor: none;
}

/* 纸页背景层（绝对定位在底层）*/
.pages-bg-layer {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  pointer-events: none;
  z-index: 0;
  display: flex;
  flex-direction: column;
}

.page-card {
  width: 100%;
  background: var(--bg-editor);
  box-shadow: var(--shadow-page);
  border: 1px solid var(--border-light);
  border-radius: 2px;
  flex-shrink: 0;
}

/* 文本前景层（透明且连续流淌）*/
.pages-fg-layer {
  position: relative;
  z-index: 1;
  width: 100%;
}


.chapter-title-input {
  font-family: var(--font-writing);
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  border: none;
  outline: none;
  background: transparent;
  width: 100%;
  margin-bottom: 24px;
  padding: 0;
  line-height: 1.4;
}

.chapter-title-input::placeholder {
  color: var(--text-muted);
}

/* Tiptap 编辑器样式 */
.tiptap {
  font-family: var(--font-writing);
  font-size: var(--editor-font-size);
  line-height: var(--editor-line-height);
  color: var(--text-primary);
  outline: none;
  caret-color: var(--accent);
  background: transparent;
  box-sizing: border-box;
  min-height: 1056px;
  padding: var(--page-margin-y, 96px) var(--page-margin-x, 96px);
}

.tiptap p {
  margin-bottom: 0.8em;
  text-indent: 2em;
}

.tiptap p:first-child {
  text-indent: 0;
}

/* 含公式/特殊元素的段落取消首行缩进 */
.tiptap p:has(.math-inline),
.tiptap p:has(.math-block) {
  text-indent: 0;
}

.tiptap h1 {
  font-size: 1.8em;
  font-weight: 700;
  margin: 1.5em 0 0.8em;
  line-height: 1.3;
}

.tiptap h2 {
  font-size: 1.4em;
  font-weight: 600;
  margin: 1.2em 0 0.6em;
  line-height: 1.3;
}

.tiptap h3 {
  font-size: 1.15em;
  font-weight: 600;
  margin: 1em 0 0.5em;
  line-height: 1.3;
}

.tiptap strong {
  font-weight: 700;
  color: var(--text-primary);
}

.tiptap em {
  font-style: italic;
}

.tiptap u {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.tiptap mark {
  background: var(--accent-light);
  border-radius: 2px;
  padding: 1px 4px;
}

.tiptap blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 16px;
  margin: 1em 0;
  color: var(--text-secondary);
  font-style: italic;
}

.tiptap hr {
  border: none;
  border-top: 1px solid var(--border-light);
  margin: 2em 0;
}

.tiptap ul,
.tiptap ol {
  padding-left: 1.5em;
  margin: 0.8em 0;
}

.tiptap li {
  margin-bottom: 0.3em;
  text-indent: 0;
}

.tiptap li p {
  text-indent: 0;
}

.tiptap .is-editor-empty:first-child::before {
  content: attr(data-placeholder);
  float: left;
  color: var(--text-muted);
  pointer-events: none;
  height: 0;
  font-style: italic;
}

/* 任务列表 */
.tiptap ul[data-type="taskList"] {
  list-style: none;
  padding-left: 0;
}

.tiptap ul[data-type="taskList"] li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 4px;
}

.tiptap ul[data-type="taskList"] li>label {
  flex-shrink: 0;
  margin-top: 4px;
}

.tiptap ul[data-type="taskList"] li>label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

.tiptap ul[data-type="taskList"] li>div {
  flex: 1;
}

.tiptap ul[data-type="taskList"] li[data-checked="true"]>div {
  text-decoration: line-through;
  color: var(--text-muted);
}

/* 代码块 */
.tiptap pre {
  background: var(--bg-tertiary, #f4f4f5);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  margin: 1em 0;
  overflow-x: auto;
  font-family: "SF Mono", "Cascadia Code", "Consolas", monospace;
  font-size: 0.9em;
  line-height: 1.6;
}

.tiptap pre code {
  background: transparent;
  padding: 0;
  border: none;
  font-size: inherit;
  color: inherit;
}

/* 行内代码 */
.tiptap code {
  background: var(--bg-tertiary, #f4f4f5);
  padding: 2px 5px;
  border-radius: 3px;
  font-family: "SF Mono", "Cascadia Code", "Consolas", monospace;
  font-size: 0.9em;
}

/* 删除线 */
.tiptap s {
  text-decoration: line-through;
  color: var(--text-muted);
}

/* 上下标 */
.tiptap sub {
  font-size: 0.75em;
  vertical-align: sub;
}

.tiptap sup {
  font-size: 0.75em;
  vertical-align: super;
}

/* 行内公式 — inline-flex 完全无间隙 */
.math-inline {
  display: inline-flex !important;
  vertical-align: baseline;
  cursor: pointer;
  border-radius: 2px;
  transition: background 0.15s;
  margin: 0 !important;
  padding: 0 !important;
  border: none;
  text-indent: 0;
}

/* 强制清除 KaTeX 行内公式的所有内部间距 */
.math-inline .katex {
  font-size: 1em;
  margin: 0 !important;
  padding: 0 !important;
  text-indent: 0;
}

.math-inline .katex-html {
  margin: 0 !important;
  padding: 0 !important;
}

.math-inline .katex-mathml {
  margin: 0 !important;
  padding: 0 !important;
}

.math-inline .katex .mspace,
.math-inline .katex .mord,
.math-inline .katex .base {
  margin: 0 !important;
  padding: 0 !important;
}

.math-inline:hover {
  background: var(--accent-light, #e8e0ff);
}

/* 块级公式 — 居中，无边框，干净 */
.math-block {
  display: block;
  text-align: center;
  padding: 16px 0;
  margin: 0.8em 0;
  cursor: pointer;
  transition: background 0.15s;
  border-radius: var(--radius-sm);
}

.math-block:hover {
  background: var(--bg-hover, #f8f8fa);
}

.math-block .katex {
  font-size: 1.2em;
}

/* ==================== 公式编辑弹窗 ==================== */
.math-editor-overlay {
  position: fixed;
  inset: 0;
  z-index: 3000;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.15s ease-out;
}

.math-editor-overlay.closing {
  opacity: 0;
  transition: opacity 0.15s;
}

.math-editor-dialog {
  width: 560px;
  max-width: 92vw;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.3);
  overflow: hidden;
  animation: slideUp 0.2s ease-out;
}

.math-editor-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-light);
}

.math-editor-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.math-editor-close {
  width: 28px;
  height: 28px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.math-editor-close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* 实时预览区域 */
.math-editor-preview {
  min-height: 80px;
  padding: 24px 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-secondary);
  overflow-x: auto;
}

.math-editor-preview .katex {
  font-size: 1.4em;
}

.math-editor-placeholder {
  color: var(--text-muted);
  font-style: italic;
  font-size: 14px;
}

.math-editor-error {
  color: var(--error, #ef4444);
  font-size: 12px;
  font-family: monospace;
}

/* LaTeX 输入框 */
.math-editor-input {
  display: block;
  width: 100%;
  min-height: 80px;
  padding: 14px 20px;
  border: none;
  outline: none;
  font-family: "SF Mono", "Cascadia Code", "Consolas", monospace;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  resize: vertical;
  box-sizing: border-box;
}

.math-editor-input::placeholder {
  color: var(--text-muted);
}

.math-editor-input:focus {
  background: var(--bg-primary);
}

/* 底部操作栏 */
.math-editor-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  border-top: 1px solid var(--border-light);
  background: var(--bg-secondary);
}

.math-editor-hint {
  font-size: 11px;
  color: var(--text-muted);
}

.math-editor-actions {
  display: flex;
  gap: 8px;
}

.math-editor-cancel {
  padding: 6px 16px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  transition: all 0.15s;
}

.math-editor-cancel:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.math-editor-save {
  padding: 6px 20px;
  border: none;
  background: var(--accent);
  color: white;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: all 0.15s;
}

.math-editor-save:hover {
  filter: brightness(1.1);
}

/* ==================== AI 面板 ==================== */

.ai-panel {
  position: fixed;
  right: 0;
  top: 0;
  bottom: 0;
  width: 400px;
  background: var(--bg-card);
  border-left: 1px solid var(--border-light);
  box-shadow: var(--shadow-lg);
  z-index: 30;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--transition-slow);
}

.ai-panel.open {
  transform: translateX(0);
}

.ai-panel-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ai-panel-header h3 {
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.ai-panel-body {
  flex: 1;
  overflow-y: auto;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ai-result {
  padding: 16px;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  font-family: var(--font-writing);
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-primary);
  white-space: pre-wrap;
  position: relative;
}

.ai-result-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border-light);
}

.ai-panel-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border-light);
}

.ai-mode-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
}

.ai-mode-tab {
  padding: 6px 14px;
  border: 1px solid var(--border-light);
  background: transparent;
  color: var(--text-secondary);
  border-radius: 20px;
  cursor: pointer;
  font-size: 13px;
  transition: all var(--transition-fast);
}

.ai-mode-tab:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.ai-mode-tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--text-inverse);
}

.ai-input-group {
  display: flex;
  gap: 8px;
}

.ai-input {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 14px;
  font-family: var(--font-ui);
  resize: none;
  outline: none;
  transition: border-color var(--transition-fast);
}

.ai-input:focus {
  border-color: var(--accent);
}

/* ==================== 按钮 (Premium UI) ==================== */

.btn {
  padding: 8px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font-ui);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  outline: none;
  box-shadow: var(--shadow-sm);
}

.btn:active {
  transform: scale(0.96);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: white;
  box-shadow: 0 4px 12px var(--accent-light);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px var(--accent-glow);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-secondary {
  background: var(--bg-hover);
  color: var(--text-secondary);
  border-color: var(--border-light);
}

.btn-secondary:hover {
  background: var(--bg-active);
  color: var(--text-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  box-shadow: none;
}

.btn-ghost:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  transform: translateY(-1px);
}

/* ==================== 毛玻璃复用类 ==================== */
.glass-panel {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
}

.btn-icon {
  padding: 6px;
  min-width: 32px;
  height: 32px;
  justify-content: center;
}

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

.btn-stop {
  background: var(--error);
  color: #fff;
  font-weight: 600;
}

.btn-stop:hover {
  background: #a33;
  filter: brightness(1.1);
}

/* 流式输出光标 */
.streaming-cursor {
  display: inline-block;
  animation: blink 0.6s steps(2) infinite;
  color: var(--accent);
  font-weight: 300;
  margin-left: 1px;
}

@keyframes blink {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0;
  }
}

/* ==================== 状态栏 ==================== */

.status-bar {
  padding: 6px 20px;
  border-top: 1px solid var(--border-light);
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
  position: relative;
}

.status-bar-left,
.status-bar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}


/* 排版设置浮层 */
.typeset-popover {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 4px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 16px 20px;
  min-width: 260px;
  z-index: 50;
  animation: fadeIn 0.15s ease;
}

.typeset-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.typeset-row:last-of-type {
  margin-bottom: 14px;
}

.typeset-row label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  min-width: 32px;
  font-family: var(--font-ui);
}

.typeset-row input[type="range"] {
  flex: 1;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--border-light);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

.typeset-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg-card);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
  cursor: pointer;
  transition: transform 0.15s;
}

.typeset-row input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.typeset-value {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  min-width: 40px;
  text-align: right;
  font-family: 'SF Mono', 'Cascadia Code', monospace;
}

.typeset-reset {
  width: 100%;
  padding: 6px 0;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
  font-size: 12px;
  font-family: var(--font-ui);
  cursor: pointer;
  transition: all 0.15s;
}

.typeset-reset:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border-medium);
}

/* ==================== 浮动 AI 按钮 ==================== */

.ai-fab {
  position: fixed;
  bottom: 48px;
  right: 32px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: white;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 16px var(--accent-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  transition: all var(--transition-normal);
  z-index: 25;
}

.ai-fab:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 24px var(--accent-glow);
}

.ai-fab.active {
  background: var(--text-secondary);
  box-shadow: none;
}

/* ==================== 弹出菜单 ==================== */

.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 4px;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  min-width: 160px;
  z-index: 50;
  padding: 4px;
  animation: slideUp 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.dropdown-item {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 8px;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

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

.dropdown-item.danger:hover {
  background: rgba(196, 106, 106, 0.1);
  color: var(--error);
}

/* ==================== 模态框 ==================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(4px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal {
  background: var(--bg-glass);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.15);
  width: 90%;
  max-width: 480px;
  padding: 24px;
  animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal h2 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
}

.modal-input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 14px;
  font-family: var(--font-ui);
  outline: none;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  margin-bottom: 16px;
}

.modal-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
  background: var(--bg-primary);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* ==================== 设置面板 ==================== */

.settings-group {
  margin-bottom: 20px;
}

.settings-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.settings-slider {
  width: 100%;
  accent-color: var(--accent);
}

/* ==================== 加载动画 ==================== */

.loading-dots {
  display: inline-flex;
  gap: 4px;
}

.loading-dots span {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: bounce 1.4s infinite ease-in-out both;
}

.loading-dots span:nth-child(1) {
  animation-delay: -0.32s;
}

.loading-dots span:nth-child(2) {
  animation-delay: -0.16s;
}

.loading-dots span:nth-child(3) {
  animation-delay: 0s;
}

/* ==================== Toast 通知 ==================== */

.toast-container {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  font-size: 13px;
  color: var(--text-primary);
  animation: slideIn 0.3s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}

.toast.success {
  border-left: 3px solid var(--success);
}

.toast.error {
  border-left: 3px solid var(--error);
}

.toast.info {
  border-left: 3px solid var(--info);
}

/* ==================== 动画 ==================== */

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.92);
  }

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

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

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

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

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

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(20px);
  }

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

@keyframes bounce {

  0%,
  80%,
  100% {
    transform: scale(0);
  }

  40% {
    transform: scale(1);
  }
}

/* ==================== 响应式 ==================== */

@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 40;
    box-shadow: var(--shadow-lg);
  }

  .sidebar.collapsed {
    transform: translateX(-100%);
  }

  .ai-panel {
    width: 100%;
  }

  .document-workspace {
    padding: 0;
  }
}

/* ==================== 设定集分类配色 ==================== */

:root {
  --cat-work: #d97706;
  --cat-work-bg: rgba(217, 119, 6, 0.1);
  --cat-character: #3b82f6;
  --cat-character-bg: rgba(59, 130, 246, 0.1);
  --cat-location: #10b981;
  --cat-location-bg: rgba(16, 185, 129, 0.1);
  --cat-world: #8b5cf6;
  --cat-world-bg: rgba(139, 92, 246, 0.1);
  --cat-object: #f59e0b;
  --cat-object-bg: rgba(245, 158, 11, 0.1);
  --cat-plot: #ef4444;
  --cat-plot-bg: rgba(239, 68, 68, 0.1);
  --cat-rules: #6b7280;
  --cat-rules-bg: rgba(107, 114, 128, 0.1);
  --cat-custom: #06b6d4;
  --cat-custom-bg: rgba(6, 182, 212, 0.1);
  --cat-bookinfo: #c4956a;
  --cat-bookinfo-bg: rgba(196, 149, 106, 0.1);
}

[data-theme="dark"] {
  --cat-work: #f59e0b;
  --cat-work-bg: rgba(245, 158, 11, 0.15);
  --cat-character: #60a5fa;
  --cat-character-bg: rgba(96, 165, 250, 0.15);
  --cat-location: #34d399;
  --cat-location-bg: rgba(52, 211, 153, 0.15);
  --cat-world: #a78bfa;
  --cat-world-bg: rgba(167, 139, 250, 0.15);
  --cat-object: #fbbf24;
  --cat-object-bg: rgba(251, 191, 36, 0.15);
  --cat-plot: #f87171;
  --cat-plot-bg: rgba(248, 113, 113, 0.15);
  --cat-rules: #9ca3af;
  --cat-rules-bg: rgba(156, 163, 175, 0.15);
  --cat-custom: #22d3ee;
  --cat-custom-bg: rgba(34, 211, 238, 0.15);
  --cat-bookinfo: #d4a574;
  --cat-bookinfo-bg: rgba(212, 165, 116, 0.15);
}

/* ==================== 设定集面板 — 全屏覆盖 ==================== */

.settings-panel-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s ease;
}

.settings-panel-container {
  background: var(--bg-card);
  border-radius: 16px;
  box-shadow:
    0 24px 80px rgba(0, 0, 0, 0.25),
    0 0 0 1px rgba(255, 255, 255, 0.06);
  width: 94%;
  max-width: 1120px;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  animation: settingsSlideUp 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.settings-panel-container.fullscreen {
  position: fixed;
  inset: 0;
  width: 100%;
  max-width: 100%;
  max-height: 100%;
  height: 100%;
  border-radius: 0;
  box-shadow: none;
  z-index: 1001;
  animation: none;
}

@keyframes settingsSlideUp {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.97);
  }

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

/* ==================== 设定集头部 ==================== */

.settings-header {
  padding: 20px 28px;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-secondary) 100%);
}

.settings-header h2 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
}

.settings-header .subtitle {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 400;
}

/* ==================== 统计栏 ==================== */

.settings-stats {
  display: flex;
  gap: 8px;
  padding: 10px 24px;
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-secondary);
  overflow-x: auto;
  scrollbar-width: thin;
}

.stat-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px 6px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  transition: all var(--transition-normal);
  cursor: pointer;
  border: 1px solid rgba(128, 128, 128, 0.15);
  box-shadow: var(--shadow-sm);
}

.stat-badge:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  filter: brightness(1.05);
}

.stat-badge:active {
  transform: scale(0.96);
}

.stat-badge .stat-count {
  font-weight: 700;
  font-size: 14px;
}

/* ==================== 搜索框 ==================== */

.settings-search {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-light);
}

.settings-search-input {
  width: 100%;
  padding: 8px 12px 8px 34px;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 13px;
  font-family: var(--font-ui);
  outline: none;
  transition: all 0.2s ease;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%239a8d7e' viewBox='0 0 16 16'%3E%3Cpath d='M11.742 10.344a6.5 6.5 0 1 0-1.397 1.398h-.001c.03.04.062.078.098.115l3.85 3.85a1 1 0 0 0 1.415-1.414l-3.85-3.85a1.007 1.007 0 0 0-.115-.1zM12 6.5a5.5 5.5 0 1 1-11 0 5.5 5.5 0 0 1 11 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 10px center;
  background-size: 14px;
}

.settings-search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light), 0 0 16px rgba(196, 149, 106, 0.1);
}

.settings-search-input::placeholder {
  color: var(--text-muted);
}

/* ==================== 设定树样式 ==================== */

.settings-tree {
  padding: 6px 8px;
}

.tree-node {
  user-select: none;
}

.tree-node-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  font-size: 13px;
  color: var(--text-secondary);
  position: relative;
  margin-bottom: 2px;
}

.tree-node-row:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  transform: translateX(2px);
}

.tree-node-row.selected {
  background: var(--bg-card);
  color: var(--accent);
  font-weight: 600;
  border-color: var(--accent-light);
  box-shadow: 0 4px 12px var(--accent-light), 0 0 0 1px var(--accent-glow) inset;
  transform: translateX(4px);
}

.tree-node-row.disabled {
  opacity: 0.35;
}

.tree-node-row.disabled .tree-node-name {
  text-decoration: line-through;
  text-decoration-color: var(--text-muted);
}

.tree-node-icon {
  font-size: 15px;
  flex-shrink: 0;
  width: 22px;
  text-align: center;
  line-height: 1;
}

.tree-node-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  line-height: 1.3;
}

.tree-node-badge {
  font-size: 10px;
  padding: 1px 7px;
  border-radius: 10px;
  font-weight: 700;
  flex-shrink: 0;
  min-width: 20px;
  text-align: center;
}

.tree-node-actions {
  display: none;
  gap: 2px;
  flex-shrink: 0;
}

.tree-node-row:hover .tree-node-actions {
  display: flex;
}

.tree-node-row:hover .tree-node-badge {
  display: none;
}

.tree-action-btn {
  padding: 2px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 4px;
  font-size: 12px;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
}

.tree-action-btn:hover {
  background: var(--bg-active);
  color: var(--text-primary);
}

.tree-action-btn.danger:hover {
  background: rgba(239, 68, 68, 0.12);
  color: var(--error);
}

/* 启用/禁用开关 */
.tree-toggle-btn {
  padding: 2px;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: 4px;
  font-size: 12px;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  opacity: 0;
  color: var(--text-muted);
}

.tree-node-row:hover .tree-toggle-btn {
  opacity: 1;
}

.tree-toggle-btn.visible {
  opacity: 0.5;
}

.tree-toggle-btn:hover {
  opacity: 1 !important;
  background: var(--bg-active);
}

.tree-node-children {
  margin-left: 4px;
  border-left: 1px solid var(--border-light);
  padding-left: 4px;
}

/* AI 生成按钮 */
.tree-ai-generate-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  margin: 6px 8px 8px;
  border: 1px dashed var(--accent);
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent-light) 0%, transparent 100%);
  color: var(--accent);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: all 0.2s ease;
  font-family: var(--font-ui);
}

.tree-ai-generate-btn:hover {
  background: var(--accent-light);
  border-style: solid;
  box-shadow: 0 0 16px var(--accent-glow);
  transform: translateY(-1px);
}

/* ==================== 角色卡片预览 ==================== */

.character-card-preview {
  padding: 22px;
  border-radius: 12px;
  margin-bottom: 20px;
  position: relative;
  overflow: hidden;
}

.character-card-preview::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.08;
  background: linear-gradient(135deg, currentColor 0%, transparent 50%);
  pointer-events: none;
}

.character-card-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.character-card-avatar {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: white;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
  letter-spacing: 0;
  font-weight: 700;
}

.character-card-info {
  flex: 1;
}

.character-card-name {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-primary);
  letter-spacing: 0.5px;
}

.character-card-role {
  display: inline-flex;
  padding: 3px 12px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.character-card-quickinfo {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.character-card-quickinfo .info-item {
  font-size: 12px;
  color: var(--text-secondary);
  display: flex;
  gap: 4px;
}

.character-card-quickinfo .info-label {
  color: var(--text-muted);
  font-weight: 500;
}

/* ==================== 字段分组 ==================== */

.field-group {
  border: 1px solid var(--border-light);
  border-radius: 10px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow 0.2s ease;
}

.field-group:not(.collapsed):hover {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.field-group.collapsed .field-group-content {
  display: none;
}

.field-group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 16px;
  background: var(--bg-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

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

.field-group-header h4 {
  font-size: 13px;
  font-weight: 600;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
}

.field-group-chevron {
  font-size: 10px;
  color: var(--text-muted);
  transition: transform 0.2s ease;
}

.field-group.collapsed .field-group-chevron {
  transform: rotate(-90deg);
}

.field-group-content {
  padding: 14px 16px;
}

/* AI 字段填写按钮 */
.field-ai-btn {
  padding: 3px 8px;
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  font-size: 11px;
  border-radius: 4px;
  transition: all 0.15s ease;
  opacity: 0.5;
  font-weight: 500;
}

.field-ai-btn:hover {
  opacity: 1;
  background: var(--accent-light);
  box-shadow: 0 0 8px var(--accent-glow);
}

/* ==================== 上下文预览面板 ==================== */

.context-preview {
  background: var(--bg-secondary);
  border-radius: 8px;
  border: 1px solid var(--border-light);
  margin: 8px 0;
  overflow: hidden;
}

.context-preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.15s ease;
  user-select: none;
}

.context-preview-header:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.context-preview-body {
  padding: 6px 12px 10px;
  border-top: 1px solid var(--border-light);
}

.context-module {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 3px 0;
  font-size: 11px;
  color: var(--text-muted);
}

.context-module .module-label {
  display: flex;
  align-items: center;
  gap: 4px;
}

.context-module .module-tokens {
  font-family: 'SF Mono', 'Menlo', 'Monaco', monospace;
  font-size: 10px;
  color: var(--text-muted);
  background: var(--bg-secondary);
  padding: 1px 5px;
  border-radius: 4px;
}

.context-module.empty {
  opacity: 0.35;
}

/* Token 进度条 */
.token-bar {
  height: 4px;
  border-radius: 2px;
  background: var(--border-light);
  margin: 8px 0 4px;
  overflow: hidden;
}

.token-bar-fill {
  height: 100%;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-hover));
  transition: width 0.4s ease;
}

.token-bar-fill.warning {
  background: linear-gradient(90deg, #f59e0b, #f97316);
}

.token-bar-fill.danger {
  background: linear-gradient(90deg, #ef4444, #dc2626);
}

.token-summary {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: var(--text-muted);
  font-family: 'SF Mono', 'Menlo', 'Monaco', monospace;
}

/* ==================== 自由对话输入 ==================== */

.chat-input-area {
  width: 100%;
  min-height: 80px;
  max-height: 160px;
  padding: 12px 14px;
  border: 1px solid var(--border-light);
  border-radius: 10px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 14px;
  font-family: var(--font-ui);
  resize: vertical;
  outline: none;
  transition: all 0.2s ease;
  margin-bottom: 8px;
  line-height: 1.7;
}

.chat-input-area:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light), 0 0 20px rgba(196, 149, 106, 0.08);
}

.chat-input-area::placeholder {
  color: var(--text-muted);
}

/* ==================== 写作模式卡片 ==================== */

.writing-mode-card {
  flex: 1;
  padding: 12px 14px;
  border: 1px solid var(--border-light);
  border-radius: 10px;
  background: var(--bg-primary);
  cursor: pointer;
  text-align: left;
  transition: all 0.2s ease;
  font-family: var(--font-ui);
}

.writing-mode-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.writing-mode-card.active {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

/* ==================== 设定集空状态 ==================== */

.settings-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
  text-align: center;
  color: var(--text-muted);
}

.settings-empty-state .empty-icon {
  font-size: 56px;
  margin-bottom: 20px;
  opacity: 0.4;
  filter: grayscale(0.3);
}

.settings-empty-state h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.settings-empty-state p {
  font-size: 13px;
  line-height: 1.7;
  max-width: 300px;
  color: var(--text-muted);
}

/* ==================== Inline AI 内联写作助手 ==================== */

.inline-ai-trigger {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  z-index: 100;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.inline-ai-trigger:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.3);
}

.inline-ai-popover {
  position: fixed;
  width: 360px;
  max-width: calc(100vw - 32px);
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15), 0 2px 8px rgba(0, 0, 0, 0.08);
  z-index: 200;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  backdrop-filter: blur(12px);
  animation: popoverIn 0.15s ease-out;
}

@keyframes popoverIn {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.97);
  }

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

.inline-ai-modes {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.inline-ai-mode-btn {
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s;
  font-family: var(--font-ui);
}

.inline-ai-mode-btn:hover {
  background: var(--bg-tertiary);
  border-color: var(--accent);
  color: var(--accent);
}

.inline-ai-mode-btn.active {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}

.inline-ai-mode-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.inline-ai-input-row {
  display: flex;
  gap: 6px;
  align-items: center;
}

.inline-ai-input {
  flex: 1;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 13px;
  font-family: var(--font-ui);
  outline: none;
  transition: border-color 0.15s;
}

.inline-ai-input:focus {
  border-color: var(--accent);
}

.inline-ai-input::placeholder {
  color: var(--text-muted);
  font-size: 12px;
}

.inline-ai-go-btn {
  padding: 7px 14px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s;
  font-family: var(--font-ui);
}

.inline-ai-go-btn:hover {
  filter: brightness(1.1);
}

.inline-ai-stop-btn {
  padding: 7px 14px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--error);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s;
  font-family: var(--font-ui);
}

.inline-ai-stop-btn:hover {
  filter: brightness(1.1);
}

.inline-ai-status {
  font-size: 12px;
  color: var(--accent);
  padding: 2px 4px;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.5;
  }
}

.inline-ai-hint {
  font-size: 11px;
  color: var(--text-muted);
  padding: 2px 4px;
}

/* ==================== Inline 参考面板 ==================== */

.inline-context-panel {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.inline-context-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  padding: 5px 8px;
  border: none;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 12px;
  font-family: var(--font-ui);
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: left;
}

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

.inline-context-chevron {
  font-size: 9px;
  color: var(--text-muted);
  width: 12px;
  display: inline-flex;
  justify-content: center;
}

.inline-context-count {
  color: var(--text-muted);
  font-size: 11px;
  margin-left: auto;
}

.inline-context-list {
  max-height: 180px;
  overflow-y: auto;
  border-top: 1px solid var(--border-light);
  padding: 4px 0;
}

.inline-context-group {
  margin-bottom: 2px;
}

.inline-context-group-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background 0.1s;
}

.inline-context-group-header:hover {
  background: var(--bg-hover);
}

.inline-context-group-header input[type="checkbox"] {
  width: 13px;
  height: 13px;
  accent-color: var(--accent);
  cursor: pointer;
  flex-shrink: 0;
}

.inline-context-group-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.inline-context-group-count {
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 400;
  flex-shrink: 0;
}

.inline-context-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px 2px 24px;
  font-size: 11px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background 0.1s;
}

.inline-context-item:hover {
  background: var(--bg-hover);
}

.inline-context-item input[type="checkbox"] {
  width: 12px;
  height: 12px;
  accent-color: var(--accent);
  cursor: pointer;
  flex-shrink: 0;
}

.inline-context-item-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ==================== 帮助文档面板 ==================== */

.help-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.15s;
}

.help-panel {
  width: 900px;
  max-width: 95vw;
  height: 80vh;
  max-height: 90vh;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.25);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: slideUp 0.2s ease-out;
}

@keyframes slideUp {
  from {
    transform: translateY(20px);
    opacity: 0.8;
  }

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

.help-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-light);
  flex-shrink: 0;
}

.help-header h2 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.help-close-btn {
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 18px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.help-body {
  display: flex;
  flex: 1;
  overflow: hidden;
}

.help-nav {
  width: 200px;
  min-width: 200px;
  border-right: 1px solid var(--border-light);
  padding: 12px 8px;
  overflow-y: auto;
  flex-shrink: 0;
}

.help-nav-item {
  display: block;
  width: 100%;
  padding: 10px 12px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  text-align: left;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s;
  margin-bottom: 2px;
}

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

.help-nav-item.active {
  background: var(--accent-light);
  color: var(--accent);
  font-weight: 600;
}

.help-content {
  flex: 1;
  padding: 24px 32px;
  overflow-y: auto;
}

/* 帮助文档内部 Markdown 样式 */
.help-markdown h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-light);
}

.help-markdown h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 20px 0 8px;
}

.help-markdown p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin: 6px 0;
}

.help-markdown strong {
  color: var(--text-primary);
  font-weight: 600;
}

.help-markdown code {
  background: var(--bg-tertiary, #f4f4f5);
  padding: 2px 6px;
  border-radius: 3px;
  font-family: "SF Mono", "Cascadia Code", monospace;
  font-size: 0.9em;
  color: var(--accent);
}

.help-markdown table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 13px;
}

.help-markdown th {
  background: var(--bg-secondary);
  padding: 8px 12px;
  text-align: left;
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: 2px solid var(--border-light);
}

.help-markdown td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-secondary);
}

.help-markdown tr:hover td {
  background: var(--bg-hover);
}

.help-markdown blockquote {
  border-left: 3px solid var(--accent);
  padding: 8px 16px;
  margin: 12px 0;
  background: var(--accent-light);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-secondary);
  font-size: 13px;
}

.help-markdown s {
  text-decoration: line-through;
  color: var(--text-muted);
}

/* ==================== Ghost Text 样式 ==================== */

.ghost-text {
  background: rgba(46, 160, 67, 0.15);
  border-left: 2px solid rgba(46, 160, 67, 0.6);
  padding-left: 1px;
  color: var(--text-primary);
  text-decoration: none;
  transition: background 0.3s ease;
}

.ghost-text+.ghost-text {
  border-left: none;
}

/* 内联操作栏 — Cursor 风格，定位在幽灵文本末尾 */
.ghost-inline-bar {
  position: fixed;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  background: var(--bg-primary);
  border: 1px solid var(--border-medium);
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(255, 255, 255, 0.04);
  animation: ghostBarFadeIn 0.15s ease;
}

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

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

.ghost-inline-bar .ghost-accept-btn,
.ghost-inline-bar .ghost-reject-btn,
.ghost-inline-bar .ghost-regen-btn {
  padding: 4px 10px;
  font-size: 12px;
}

.ghost-bar-shortcut {
  font-size: 10px;
  color: var(--text-muted);
  margin-left: 4px;
  white-space: nowrap;
}

/* Ghost 操作栏 */
.ghost-action-bar {
  display: flex;
  gap: 6px;
  padding: 4px 0;
}

.ghost-accept-btn,
.ghost-reject-btn,
.ghost-regen-btn {
  padding: 6px 14px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-family: var(--font-ui);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-weight: 500;
}

.ghost-accept-btn {
  background: var(--success);
  color: white;
}

.ghost-accept-btn:hover {
  filter: brightness(1.1);
}

.ghost-reject-btn {
  background: transparent;
  color: var(--error);
  border: 1px solid var(--error);
}

.ghost-reject-btn:hover {
  background: rgba(196, 106, 106, 0.1);
}

.ghost-regen-btn {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-medium);
}

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

/* ==================== AI 侧栏浮动圆形图标 ==================== */

.ai-sidebar-toggle {
  position: fixed;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 40;
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: white;
  font-size: 20px;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(196, 149, 106, 0.35), 0 2px 6px rgba(0, 0, 0, 0.1);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: togglePulse 3s ease-in-out infinite;
}

.ai-sidebar-toggle:hover {
  transform: translateY(-50%) scale(1.12);
  box-shadow: 0 6px 24px rgba(196, 149, 106, 0.5), 0 3px 10px rgba(0, 0, 0, 0.15);
  animation: none;
}

.ai-sidebar-toggle:active {
  transform: translateY(-50%) scale(0.95);
}

@keyframes togglePulse {

  0%,
  100% {
    box-shadow: 0 4px 16px rgba(196, 149, 106, 0.35), 0 2px 6px rgba(0, 0, 0, 0.1);
  }

  50% {
    box-shadow: 0 4px 24px rgba(196, 149, 106, 0.55), 0 2px 8px rgba(0, 0, 0, 0.12);
  }
}

/* ==================== AI 对话侧栏 ==================== */

.ai-sidebar {
  position: absolute;
  right: 0;
  top: var(--toolbar-h, 42px);
  bottom: 0;
  width: 380px;
  background: var(--bg-primary);
  border-left: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  z-index: 35;
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.06);
  transition: transform 0.3s ease, opacity 0.3s ease;
  transform: translateX(0);
}

/* AI 侧栏打开时，编辑区右移让出滚动条 */
.app-layout.ai-open .editor-container {
  margin-right: 380px;
  transition: margin-right 0.3s ease;
}

.ai-sidebar.collapsed {
  transform: translateX(100%);
  opacity: 0;
  pointer-events: none;
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }

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

.ai-sidebar-header {
  padding: 16px 20px;
  background: linear-gradient(135deg, var(--accent-light), transparent);
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ai-sidebar-title {
  font-weight: 700;
  font-size: 16px;
  color: var(--accent);
  letter-spacing: 0.5px;
}

.ai-sidebar-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-light);
  padding: 0;
  background: var(--bg-secondary);
}

.ai-sidebar-tab {
  flex: 1;
  padding: 12px 8px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 13px;
  font-family: var(--font-ui);
  cursor: pointer;
  border-bottom: 2.5px solid transparent;
  transition: all var(--transition-fast);
  text-align: center;
  font-weight: 500;
}

.ai-sidebar-tab:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.ai-sidebar-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 600;
  background: var(--bg-primary);
}

.ai-sidebar-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 0;
}

/* ===== 对话控制栏 ===== */

.chat-controls {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-shrink: 0;
}

.chat-control-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
}

.chat-control-item input[type="checkbox"] {
  accent-color: var(--accent);
  width: 14px;
  height: 14px;
}

.chat-window-size-input {
  width: 40px;
  padding: 2px 4px;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 12px;
  font-family: var(--font-ui);
  text-align: center;
}

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

/* 小按钮 */
.btn-mini {
  padding: 4px 10px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  font-size: 11px;
  font-family: var(--font-ui);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.btn-mini.primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.btn-mini.primary:hover {
  filter: brightness(1.1);
}

.btn-mini.danger {
  color: var(--error);
  border-color: transparent;
}

.btn-mini.danger:hover {
  background: rgba(196, 106, 106, 0.1);
}

.btn-mini:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ===== 总结编辑器 ===== */

.summary-editor {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-light);
  background: var(--accent-light);
  flex-shrink: 0;
}

.summary-editor-label {
  font-size: 12px;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 6px;
}

.summary-textarea {
  width: 100%;
  padding: 8px;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 12px;
  font-family: var(--font-ui);
  line-height: 1.5;
  resize: vertical;
}

.summary-actions {
  display: flex;
  gap: 6px;
  margin-top: 6px;
  justify-content: flex-end;
}

/* ===== 聊天消息区 ===== */

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chat-empty {
  text-align: center;
  color: var(--text-muted);
  padding: 40px 20px;
  font-size: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
}

.chat-empty div:first-child {
  font-size: 28px;
  color: var(--accent);
}

.chat-empty-hint {
  font-size: 12px;
}

.chat-message {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.chat-message-header {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-muted);
}

.chat-check {
  width: 13px;
  height: 13px;
  accent-color: var(--accent);
  cursor: pointer;
}

.chat-role {
  font-weight: 600;
  font-size: 12px;
}

.chat-message.user .chat-role {
  color: var(--text-secondary);
}

.chat-message.assistant .chat-role {
  color: var(--accent);
}

.chat-message.system .chat-role {
  color: var(--info);
}

.chat-time {
  margin-left: auto;
}

/* 消息操作按钮 — 默认隐藏，hover 滑入 */
.chat-msg-actions {
  display: flex;
  gap: 1px;
  margin-left: auto;
  opacity: 0;
  transform: translateX(8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  pointer-events: none;
}

.chat-message:hover .chat-msg-actions {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

.btn-mini-icon {
  background: none;
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 11px;
  padding: 3px 5px;
  border-radius: 6px;
  opacity: 0.7;
  transition: all 0.18s ease;
  line-height: 1;
}

.btn-mini-icon:hover {
  opacity: 1;
  background: var(--bg-hover);
  border-color: var(--border-light);
  transform: scale(1.1);
}

.btn-mini-icon.danger:hover {
  background: rgba(220, 60, 60, 0.12);
  border-color: rgba(220, 60, 60, 0.25);
}

.btn-mini-icon:disabled {
  opacity: 0.25;
  cursor: not-allowed;
  transform: none;
}

/* 已编辑标记 */
.chat-edited-badge {
  font-size: 10px;
  color: var(--text-muted);
  font-style: italic;
  padding: 1px 6px;
  background: rgba(128, 128, 128, 0.1);
  border-radius: 8px;
}

/* 消息编辑模式 */
.chat-message-editing {
  display: flex;
  flex-direction: column;
  gap: 8px;
  animation: fadeSlideIn 0.2s ease;
}

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

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

.chat-edit-textarea {
  width: 100%;
  padding: 10px 12px;
  border: 2px solid var(--accent);
  border-radius: 10px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 13px;
  line-height: 1.6;
  resize: vertical;
  font-family: inherit;
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb, 100, 130, 200), 0.12);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.chat-edit-textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(var(--accent-rgb, 100, 130, 200), 0.18);
}

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

.chat-edit-actions .btn-mini {
  border-radius: 8px;
  padding: 5px 14px;
  font-size: 12px;
  transition: all 0.15s ease;
}

/* 流式输出光标 */
.chat-message.assistant .chat-bubble-content.streaming::after {
  content: '▊';
  animation: blink 0.8s steps(2) infinite;
  color: var(--accent);
  margin-left: 2px;
}

/* ===== 聊天 Markdown 渲染 ===== */

.chat-bubble-content {
  font-size: 13px;
  line-height: 1.7;
  word-break: break-word;
  overflow-wrap: break-word;
}

.chat-md-p {
  margin: 0 0 8px;
}

.chat-md-p:last-child {
  margin-bottom: 0;
}

.chat-md-heading {
  font-weight: 700;
  margin: 12px 0 6px;
  color: var(--text-primary);
}

h3.chat-md-heading {
  font-size: 15px;
}

h4.chat-md-heading {
  font-size: 14px;
}

h5.chat-md-heading {
  font-size: 13px;
}

.chat-md-inline-code {
  background: var(--bg-tertiary, rgba(0, 0, 0, 0.06));
  padding: 1px 5px;
  border-radius: 4px;
  font-family: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
  font-size: 0.88em;
  color: var(--accent);
  word-break: break-all;
}

.chat-md-code-block {
  margin: 8px 0;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-light);
  background: var(--bg-secondary);
}

.chat-md-code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 10px;
  background: var(--bg-tertiary, rgba(0, 0, 0, 0.04));
  border-bottom: 1px solid var(--border-light);
}

.chat-md-code-lang {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.chat-md-copy-btn {
  padding: 2px 8px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 10px;
  cursor: pointer;
  border-radius: 4px;
  transition: all 0.15s;
  font-family: var(--font-ui);
}

.chat-md-copy-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.chat-md-pre {
  margin: 0;
  padding: 10px 12px;
  overflow-x: auto;
  font-size: 12px;
  line-height: 1.5;
  font-family: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
  color: var(--text-primary);
}

.chat-md-pre code {
  font-family: inherit;
}

.chat-md-table-wrap {
  overflow-x: auto;
  margin: 8px 0;
  border-radius: 6px;
  border: 1px solid var(--border-light);
}

.chat-md-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.chat-md-table th {
  background: var(--bg-secondary);
  padding: 6px 10px;
  text-align: left;
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: 2px solid var(--border-light);
  white-space: nowrap;
}

.chat-md-table td {
  padding: 5px 10px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-secondary);
}

.chat-md-table tr:last-child td {
  border-bottom: none;
}

.chat-md-table tr:hover td {
  background: var(--bg-hover);
}

.chat-md-blockquote {
  margin: 8px 0;
  padding: 6px 12px;
  border-left: 3px solid var(--accent);
  background: var(--accent-light);
  border-radius: 0 6px 6px 0;
  color: var(--text-secondary);
  font-size: 12px;
}

.chat-md-blockquote p {
  margin: 0;
}

.chat-md-ul,
.chat-md-ol {
  margin: 4px 0;
  padding-left: 20px;
}

.chat-md-ul li,
.chat-md-ol li {
  margin-bottom: 2px;
}

.chat-md-link {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px dotted var(--accent);
  transition: opacity 0.15s;
}

.chat-md-link:hover {
  opacity: 0.8;
}


/* ===== 设定集操作卡片 ===== */

.settings-action-card {
  margin: 8px 0;
  padding: 10px 12px;
  border: 1px solid var(--accent-glow, rgba(100, 130, 200, 0.25));
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent-light, rgba(100, 130, 200, 0.06)), transparent);
}

.settings-action-header {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
}

.settings-action-badge {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 10px;
  font-size: 10px;
  font-weight: 700;
  background: var(--accent);
  color: white;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.settings-action-cat {
  font-size: 11px;
  color: var(--text-muted);
}

.settings-action-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.settings-action-preview {
  margin: 6px 0 8px;
  padding: 6px 8px;
  background: var(--bg-secondary);
  border-radius: 6px;
  font-size: 11px;
  line-height: 1.5;
}

.settings-action-field {
  display: flex;
  gap: 4px;
  margin-bottom: 4px;
}

.settings-action-field-key {
  color: var(--text-muted);
  font-weight: 600;
  white-space: nowrap;
  flex-shrink: 0;
}

.settings-action-field-val {
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
}

.settings-action-apply {
  width: 100%;
  text-align: center;
  border-radius: 8px;
  padding: 5px 0;
  font-size: 12px;
}

.settings-action-apply:disabled {
  background: var(--bg-secondary);
  color: var(--text-muted);
  border-color: var(--border-light);
  cursor: default;
  opacity: 0.8;
}

/* ===== 会话列表面板 ===== */
.session-list-panel {
  border-bottom: 1px solid var(--border-light);
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  max-height: 300px;
  display: flex;
  flex-direction: column;
  animation: slideDown 0.2s ease;
}

@keyframes slideDown {
  from {
    max-height: 0;
    opacity: 0;
  }

  to {
    max-height: 300px;
    opacity: 1;
  }
}

.session-list-header {
  padding: 10px 14px 6px;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.session-list {
  overflow-y: auto;
  flex: 1;
  padding: 2px 8px 8px;
}

.session-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.18s ease;
  font-size: 13px;
  margin-bottom: 2px;
  border: 1px solid transparent;
  position: relative;
}

.session-item:hover {
  background: var(--bg-hover);
  border-color: var(--border-light);
}

.session-item.active {
  background: linear-gradient(135deg, var(--accent-light), rgba(var(--accent-rgb, 100, 130, 200), 0.08));
  border-color: var(--accent-glow);
  box-shadow: 0 1px 4px rgba(var(--accent-rgb, 100, 130, 200), 0.1);
}

.session-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  background: var(--accent);
  border-radius: 0 3px 3px 0;
}

.session-item-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.session-item-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.session-item-meta {
  font-size: 11px;
  color: var(--text-muted);
  display: flex;
  gap: 6px;
  align-items: center;
}

.session-item-actions {
  display: flex;
  gap: 2px;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.session-item:hover .session-item-actions {
  opacity: 1;
}

.session-rename-input {
  flex: 1;
  padding: 6px 10px;
  border: 2px solid var(--accent);
  border-radius: 8px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 13px;
  font-family: inherit;
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb, 100, 130, 200), 0.12);
}

/* ===== 思维链折叠显示 ===== */
.chat-thinking-block {
  margin: 4px 0;
  border-radius: 8px;
  border: 1px solid rgba(255, 200, 60, 0.2);
  background: rgba(255, 200, 60, 0.05);
  overflow: hidden;
}

.chat-thinking-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  padding: 6px 10px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 12px;
  color: var(--text-secondary);
  text-align: left;
  transition: background 0.15s;
}

.chat-thinking-toggle:hover {
  background: rgba(255, 200, 60, 0.08);
}

.thinking-chevron {
  font-size: 9px;
  transition: transform 0.2s ease;
  display: inline-block;
}

.thinking-chevron.open {
  transform: rotate(90deg);
}

.thinking-preview {
  color: var(--text-muted);
  font-size: 11px;
  opacity: 0.7;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  min-width: 0;
}

.chat-thinking-content {
  padding: 8px 12px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 200px;
  overflow-y: auto;
  border-top: 1px solid rgba(255, 200, 60, 0.15);
  animation: fadeSlideIn 0.15s ease;
}

/* ===== 变体导航 < 1/3 > ===== */
.chat-variant-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 3px 0;
  margin-top: 2px;
}

.variant-indicator {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 600;
  min-width: 36px;
  text-align: center;
  user-select: none;
}

.chat-variant-nav .btn-mini-icon {
  font-size: 9px;
  padding: 2px 6px;
  border-radius: 50%;
}

.chat-bubble-content {
  padding: 12px 16px;
  border-radius: var(--radius-lg);
  font-size: 13px;
  line-height: 1.6;
  word-break: break-word;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal);
}

.chat-bubble-content:hover {
  box-shadow: var(--shadow-md);
}

.chat-message.user .chat-bubble-content {
  background: linear-gradient(135deg, var(--accent-light) 0%, rgba(var(--accent-rgb, 200, 150, 100), 0.05) 100%);
  color: var(--text-primary);
  border: 1px solid var(--accent-glow);
  border-bottom-right-radius: 4px;
}

.chat-message.assistant .chat-bubble-content {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-left-radius: 4px;
}

.chat-message.system .chat-bubble-content {
  background: rgba(106, 150, 196, 0.06);
  color: var(--text-secondary);
  border: 1px solid rgba(106, 150, 196, 0.15);
  font-size: 12px;
  border-radius: var(--radius-sm);
}

.streaming-cursor {
  animation: blink 0.8s infinite;
  color: var(--accent);
}

@keyframes blink {

  0%,
  50% {
    opacity: 1;
  }

  51%,
  100% {
    opacity: 0;
  }
}

/* ===== 输入区 ===== */

.chat-input-area {
  padding: 16px;
  border-top: 1px solid var(--border-glass);
  display: flex;
  gap: 12px;
  align-items: flex-end;
  flex-shrink: 0;
  background: var(--bg-glass);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

.chat-input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 13px;
  font-family: var(--font-ui);
  line-height: 1.5;
  resize: none;
  outline: none;
  transition: all var(--transition-normal);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.02);
}

.chat-input:focus {
  border-color: var(--accent);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.02), 0 0 0 3px var(--accent-light);
}

.chat-input::placeholder {
  color: var(--text-muted);
}

.chat-send-btn {
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: white;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  flex-shrink: 0;
  box-shadow: 0 4px 12px var(--accent-glow);
}

.chat-send-btn:hover:not(:disabled) {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 8px 20px var(--accent-glow);
}

.chat-send-btn:active:not(:disabled) {
  transform: scale(0.95);
}

.chat-send-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  box-shadow: none;
  background: var(--border-medium);
}

/* ===== 存档 Tab ===== */

.archive-search-bar {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-light);
  flex-shrink: 0;
}

.archive-search-input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 13px;
  font-family: var(--font-ui);
  outline: none;
  transition: border-color var(--transition-fast);
}

.archive-search-input:focus {
  border-color: var(--accent);
}

.archive-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.archive-item {
  padding: 10px 12px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.archive-item:hover {
  border-color: var(--accent-glow);
  box-shadow: var(--shadow-sm);
}

.archive-item-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.archive-status {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
}

.archive-status.accepted {
  background: rgba(107, 158, 107, 0.15);
  color: var(--success);
}

.archive-status.rejected {
  background: rgba(196, 106, 106, 0.15);
  color: var(--error);
}

.archive-status.pending {
  background: var(--accent-light);
  color: var(--accent);
}

.archive-mode {
  font-size: 12px;
  color: var(--text-secondary);
}

.archive-time {
  font-size: 11px;
  color: var(--text-muted);
  margin-left: auto;
}

.archive-preview {
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
}

.archive-actions {
  margin-top: 8px;
  display: flex;
  gap: 6px;
}

/* ===== 上下文勾选面板（📚 参考 Tab） ===== */

.context-budget-bar {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-light);
  flex-shrink: 0;
}

.context-budget-label {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 5px;
  font-weight: 500;
}

.context-over-budget {
  color: var(--error) !important;
  font-weight: 700;
}

.context-budget-track {
  width: 100%;
  height: 6px;
  background: var(--bg-tertiary, #e5e5e5);
  border-radius: 3px;
  overflow: hidden;
}

.context-budget-fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--success), var(--accent));
  transition: width 0.3s ease;
}

.context-budget-fill.over {
  background: linear-gradient(90deg, var(--error), #d9534f);
}

.context-search-bar {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-light);
  flex-shrink: 0;
}

.context-search-input {
  width: 100%;
  padding: 7px 10px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 13px;
  font-family: var(--font-ui);
  outline: none;
  transition: border-color var(--transition-fast);
}

.context-search-input:focus {
  border-color: var(--accent);
}

.context-groups {
  flex: 1;
  overflow-y: auto;
  padding: 4px 0;
}

.context-group {
  border-bottom: 1px solid var(--border-light);
}

.context-group-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  cursor: pointer;
  transition: background var(--transition-fast);
  user-select: none;
}

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

.context-collapse-icon {
  font-size: 10px;
  color: var(--text-muted);
  width: 14px;
  text-align: center;
  flex-shrink: 0;
}

.context-group-check {
  width: 14px;
  height: 14px;
  accent-color: var(--accent);
  cursor: pointer;
  flex-shrink: 0;
}

.context-group-name {
  flex: 1;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.context-group-tokens {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono, monospace);
  flex-shrink: 0;
  min-width: 40px;
  text-align: right;
}

.context-group-items {
  padding: 0 12px 6px 20px;
}

.context-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition-fast);
}

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

.context-item-check {
  width: 13px;
  height: 13px;
  accent-color: var(--accent);
  cursor: pointer;
  flex-shrink: 0;
}

.context-item-name {
  flex: 1;
  font-size: 12px;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.context-item-tokens {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono, monospace);
  flex-shrink: 0;
  min-width: 36px;
  text-align: right;
}

.context-actions {
  display: flex;
  gap: 6px;
  padding: 8px 12px;
  border-top: 1px solid var(--border-light);
  flex-shrink: 0;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .ai-sidebar {
    z-index: 50;
    box-shadow: var(--shadow-lg);
    width: 320px;
  }

  .app-layout.ai-open .editor-container {
    margin-right: 320px;
  }
}

/* ==================== 引导向导 (Tour Overlay) ==================== */

.tour-portal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  pointer-events: none;
  /* Let clicks pass through the SVG mask */
}

/* 阻止背后的互动但允许高亮区域互动 */
.tour-portal>* {
  pointer-events: auto;
}

.tour-svg-mask {
  position: absolute;
  inset: 0;
  pointer-events: all;
  /* block clicks on dark area */
  cursor: default;
}

.tour-overlay-bg {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  animation: fadeIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.tour-intro-modal {
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 48px;
  max-width: 460px;
  width: 90%;
  text-align: center;
  box-shadow: 0 32px 64px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.05) inset;
  animation: slideUp 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.tour-intro-icon {
  font-size: 64px;
  margin-bottom: 24px;
  line-height: 1;
  text-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
  animation: floatIcon 3s ease-in-out infinite;
}

@keyframes floatIcon {

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

  50% {
    transform: translateY(-10px);
  }
}

.tour-intro-modal h2 {
  font-size: 26px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.tour-intro-modal p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.tour-intro-modal .tour-intro-sub {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 24px;
  margin-bottom: 32px;
}

.tour-intro-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
}

/* Tooltip floating box */
.tour-tooltip {
  position: absolute;
  background: var(--bg-primary);
  border: 1px solid var(--border-medium);
  border-radius: 16px;
  padding: 24px;
  width: 340px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(255, 255, 255, 0.05) inset;
  z-index: 10001;
  pointer-events: auto;
  animation: scaleIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes scaleIn {
  from {
    transform: scale(0.95) translateY(10px);
    opacity: 0;
  }

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

.tour-tooltip-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.tour-tooltip-header h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.tour-step-counter {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  background: var(--bg-hover);
  padding: 4px 10px;
  border-radius: 20px;
}

.tour-tooltip-content {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
}

.tour-tooltip-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.tour-skip-text {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 13px;
  cursor: pointer;
  padding: 0;
  transition: color 0.2s;
}

.tour-skip-text:hover {
  color: var(--text-primary);
  text-decoration: underline;
}

.tour-btn {
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.tour-btn.primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 4px 12px rgba(var(--accent-rgb, 107, 76, 222), 0.3);
}

.tour-btn.primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(var(--accent-rgb, 107, 76, 222), 0.4);
}

.tour-btn.ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-medium);
}

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

/* ==================== Welcome Modal (Onboarding) ==================== */

.welcome-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.welcome-modal-container {
  max-width: 600px;
  width: 90%;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 24px;
  padding: 48px;
  box-shadow: var(--shadow-page);
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), max-width 0.5s;
}

.welcome-modal-container.step-2 {
  max-width: 800px;
}

.welcome-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.welcome-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 32px;
  letter-spacing: -0.5px;
}

.welcome-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 40px;
}

.welcome-section-title {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 20px;
}

.welcome-lang-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  width: 100%;
}

.welcome-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 24px 16px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  transition: all var(--transition-normal);
}

.welcome-card:hover {
  transform: translateY(-4px);
  background: var(--bg-hover);
  box-shadow: var(--shadow-md);
  border-color: var(--border-medium);
}

.welcome-card:active {
  transform: scale(0.96);
}

.welcome-card.active {
  border-color: var(--accent);
  background: var(--accent-light);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

.welcome-icon {
  font-size: 40px;
}

.welcome-label {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.welcome-theme-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  width: 100%;
  margin-bottom: 40px;
}

.theme-card {
  padding: 0;
  overflow: hidden;
  text-align: left;
}

.theme-preview {
  width: 100%;
  height: 140px;
  background-size: cover;
  background-position: center;
  border-bottom: 1px solid var(--border-light);
}

.warm-preview {
  background: linear-gradient(135deg, #faf8f5 0%, #efe9e0 100%);
  position: relative;
}

.warm-preview::after {
  content: '';
  position: absolute;
  top: 20px;
  left: 20px;
  right: 20px;
  bottom: 20px;
  background: #fffdf9;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(44, 36, 23, 0.05);
  border: 1px solid #e5ddd2;
}

.modern-preview {
  background: linear-gradient(135deg, #f2f3f5 0%, #e8eaed 100%);
  position: relative;
}

.modern-preview::after {
  content: '';
  position: absolute;
  top: 20px;
  left: 20px;
  right: 30%;
  bottom: 20px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(8px);
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.theme-info {
  padding: 20px;
}

.theme-info h4 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.theme-info p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.welcome-start-btn {
  padding: 16px 48px;
  font-size: 18px;
  border-radius: 99px;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: var(--text-inverse);
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: 0 8px 24px var(--accent-glow);
}

.welcome-start-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px var(--accent-glow);
}

.welcome-start-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ==================== 更新提示条 ==================== */

.update-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  animation: updateBannerSlideDown 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.update-banner-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 8px 20px;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: var(--text-inverse);
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font-ui);
}

.update-banner-icon {
  font-size: 16px;
  flex-shrink: 0;
}

.update-banner-text {
  white-space: nowrap;
}

.update-banner-link {
  color: var(--text-inverse);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: 600;
  transition: opacity 0.15s;
  white-space: nowrap;
}

.update-banner-link:hover {
  opacity: 0.85;
}

.update-banner-dismiss {
  background: none;
  border: none;
  color: var(--text-inverse);
  cursor: pointer;
  font-size: 16px;
  padding: 2px 6px;
  border-radius: 4px;
  opacity: 0.7;
  transition: opacity 0.15s;
  line-height: 1;
  flex-shrink: 0;
}

.update-banner-dismiss:hover {
  opacity: 1;
}

@keyframes updateBannerSlideDown {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }

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

/* ==================== Token 统计面板 ==================== */

.token-stats-panel {
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow-y: auto;
  flex: 1;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

/* Let the first card span full width for emphasis */
.stats-card:first-child {
  grid-column: 1 / -1;
}

.stats-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 16px 12px;
  text-align: center;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
}

/* Subtle gradient top border for modern feel */
.stats-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-hover));
  opacity: 0.7;
}

.stats-card:hover {
  border-color: var(--accent-glow);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.05);
  transform: translateY(-2px);
}

.stats-card-value {
  font-size: 22px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--text-primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
  font-family: var(--font-mono, monospace);
  margin-bottom: 6px;
}

.stats-card-label {
  font-size: 11px;
  color: var(--text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stats-detail-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  font-size: 13px;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  margin-bottom: 4px;
}

.stats-detail-label {
  color: var(--text-secondary);
}

.stats-detail-value {
  font-weight: 700;
  color: var(--text-primary);
  font-family: var(--font-mono, monospace);
  font-size: 13px;
}

.stats-section {
  padding: 4px 0;
  margin-top: 8px;
}

.stats-section-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
  padding: 0 2px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.stats-section-title::before {
  content: '';
  display: block;
  width: 3px;
  height: 14px;
  background: var(--accent);
  border-radius: 2px;
}

.stats-section-hint {
  font-size: 11px;
  color: var(--text-muted);
  padding: 0 2px;
  margin-bottom: 12px;
  line-height: 1.5;
}

.stats-rate-desc {
  font-family: var(--font-ui) !important;
  color: var(--text-muted) !important;
  font-size: 11px !important;
  font-weight: 400 !important;
}

/* 速度柱状图 */
.speed-chart {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 90px;
  padding: 16px 8px 4px 8px;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
}

.speed-bar-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  justify-content: flex-end;
  cursor: pointer;
}

.speed-bar {
  width: 100%;
  min-height: 4px;
  background: linear-gradient(180deg, var(--accent-light, var(--accent)), var(--accent-hover));
  border-radius: 4px 4px 0 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 -2px 8px var(--accent-glow);
}

.speed-bar-wrapper:hover .speed-bar {
  opacity: 1;
  filter: brightness(1.2);
}

.speed-bar-label {
  font-size: 9px;
  color: var(--text-muted);
  margin-top: 6px;
  font-family: var(--font-mono, monospace);
  font-weight: 600;
}

/* 预估/速率表格 */
.projection-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 12px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.01);
}

.projection-table th {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-secondary);
  text-align: left;
  padding: 10px 12px;
  background: var(--bg-header);
  border-bottom: 1px solid var(--border-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.projection-table td {
  padding: 10px 12px;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-light);
  font-family: var(--font-mono, monospace);
  background: var(--bg-card);
}

.projection-table tr:last-child td {
  border-bottom: none;
}

.projection-table tr:hover td {
  background: var(--bg-hover);
}

.projection-table td:first-child {
  font-family: var(--font-ui);
  color: var(--text-primary);
  font-weight: 600;
}

.stats-actions {
  display: flex;
  justify-content: center;
  padding: 16px 0 8px 0;
  margin-top: 8px;
  border-top: 1px dashed var(--border-light);
}

.stats-actions button {
  padding: 8px 16px;
  border-radius: 20px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

/* 渠道/模型信息图表卡片 */
.model-info-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg, 12px);
  padding: 20px 18px;
  margin-bottom: 16px;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.03);
  position: relative;
  overflow: hidden;
}

.model-info-card:hover {
  border-color: var(--accent-glow);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
  transform: translateY(-2px);
}

.model-info-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.model-info-title {
  display: flex;
  align-items: center;
  gap: 12px;
  overflow: hidden;
}

.model-info-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #ffffff;
  padding: 5px 12px;
  border-radius: 20px;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.provider-logo-svg {
  width: 14px;
  height: 14px;
  stroke-width: 2.5px;
  opacity: 0.9;
}

.model-info-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-family: var(--font-mono, monospace);
}

.model-info-percent {
  font-size: 24px;
  font-weight: 900;
  color: var(--text-primary);
  font-family: var(--font-ui);
  line-height: 1;
}

.model-info-percent span {
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 600;
  margin-left: 2px;
}

.model-info-bar-track {
  width: 100%;
  height: 14px;
  background: var(--bg-secondary);
  border-radius: 7px;
  overflow: hidden;
  margin-bottom: 20px;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.05);
}

.model-info-bar-fill {
  height: 100%;
  border-radius: 6px;
  min-width: 4px;
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: inset 0 -2px 4px rgba(0, 0, 0, 0.1);
}

.model-info-stats {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px dashed var(--border-light);
}

.info-stat-group {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
}

.info-stat-value {
  font-size: 13px;
  font-weight: 800;
  color: var(--text-primary);
  font-family: var(--font-mono, monospace);
  line-height: 1.2;
}

.info-stat-label {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}