/* ========== 深色主题变量覆盖 ========== */
body.dark {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --text-primary: #c9d1d9;
    --text-secondary: #8b949e;
    --border-color: #30363d;
    --code-bg: #161b22;
    --pre-bg: #161b22;
    --pre-text: #c9d1d9;
    --link-color: #58a6ff;
    --link-hover-bg: #1f2428;
    --table-header-bg: #21262d;
    --badge-bg: #30363d;
    --note-bg: #0c2d6b;
    --tip-bg: #0d3321;
    --warning-bg: #3d2300;
    --sidebar-bg: #0d1117;
    --main-bg: #0d1117;
}

/* ========== 侧边栏滚动条（深色） ========== */
body.dark .sidebar::-webkit-scrollbar-thumb {
    background: #444;
}
body.dark .sidebar::-webkit-scrollbar-thumb:hover {
    background: #666;
}