/* === Dark Theme === */

/* ==================== 暗色主题 ==================== */
[data-theme="dark"] {
  --neutral-50: #171717;
  --neutral-100: #1e1e1e;
  --neutral-200: #2a2a2a;
  --neutral-300: #404040;
  --neutral-400: #737373;
  --neutral-500: #a3a3a3;
  --neutral-600: #d4d4d4;
  --neutral-700: #404040;
  --neutral-800: #262626;
  --neutral-900: #fafafa;
  --primary-100: #1e3a5f;
}
[data-theme="dark"] body { background: #1a1a1a; color: #e5e5e5; }
[data-theme="dark"] .right-panel { background: #1a1a1a; }
[data-theme="dark"] .main-content { background: #1a1a1a; }
[data-theme="dark"] .doc-view { background: #1a1a1a; }
[data-theme="dark"] .doc-header { background: #1a1a1a; border-color: #333; }
[data-theme="dark"] .markdown-body { color: #d4d4d4; }
[data-theme="dark"] .markdown-body h1,
[data-theme="dark"] .markdown-body h2,
[data-theme="dark"] .markdown-body h3,
[data-theme="dark"] .markdown-body h4 { color: #e5e5e5; }
[data-theme="dark"] .markdown-body a { color: var(--primary-400); }
[data-theme="dark"] .markdown-body blockquote { border-color: #444; color: #aaa; }
[data-theme="dark"] .markdown-body table th { background: #2a2a2a; }
[data-theme="dark"] .markdown-body table td { border-color: #333; }
[data-theme="dark"] .markdown-body hr { border-color: #333; }
[data-theme="dark"] .top-bar { background: #1e1e1e; border-color: #333; }
[data-theme="dark"] .btn-secondary { background: #2a2a2a; color: #d4d4d4; border-color: #444; }
[data-theme="dark"] .btn-secondary:hover { background: #333; }
[data-theme="dark"] .toc { background: #1e1e1e; border-color: #333; }
[data-theme="dark"] .toc-item { color: #a3a3a3; }
[data-theme="dark"] .toc-item:hover,
[data-theme="dark"] .toc-item.active { color: #e5e5e5; }
[data-theme="dark"] .breadcrumb-current { color: #e5e5e5; }
[data-theme="dark"] .welcome { color: #a3a3a3; }
[data-theme="dark"] .welcome h2 { color: #e5e5e5; }
[data-theme="dark"] .history-panel,
[data-theme="dark"] .trash-panel { background: #1e1e1e; border-color: #333; }
[data-theme="dark"] .history-panel h3,
[data-theme="dark"] .trash-panel h3 { color: #e5e5e5; }
[data-theme="dark"] .history-item { color: #d4d4d4; border-color: #333; }
[data-theme="dark"] .history-item:hover { background: #2a2a2a; }
[data-theme="dark"] .trash-item { border-color: #333; }
[data-theme="dark"] .trash-item-actions button { background: #2a2a2a; color: #d4d4d4; border-color: #444; }
[data-theme="dark"] .shortcuts-modal { background: #1e1e1e; color: #e5e5e5; }
[data-theme="dark"] .shortcuts-table td { border-color: #333; }
[data-theme="dark"] .shortcuts-table kbd { background: #2a2a2a; border-color: #444; color: #e5e5e5; }
[data-theme="dark"] .diff-line-add { background: #132e1a; color: #4ade80; }
[data-theme="dark"] .diff-line-remove { background: #2e1313; color: #f87171; }
[data-theme="dark"] .backlinks-panel { border-color: #333; }
[data-theme="dark"] .modal-content,
[data-theme="dark"] .import-modal-content { background: #1e1e1e; color: #e5e5e5; }
[data-theme="dark"] .context-menu { background: #262626; border-color: #444; }
[data-theme="dark"] .menu-item:hover { background: #333; }
[data-theme="dark"] .editor-resize-handle { background: #444; }
[data-theme="dark"] .code-block-header { background: #111; border-color: #333; }