:root{--bg: #ffffff;--bg-subtle: #f9fafb;--bg-inset: #f3f4f6;--border: #e5e7eb;--border-strong: #d1d5db;--fg: #1f2329;--fg-muted: #6b7280;--fg-subtle: #9ca3af;--accent: #2563eb;--accent-hover: #1d4ed8;--accent-soft: #dbeafe;--accent-fg: #ffffff;--danger: #dc2626;--success: #16a34a;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08);--shadow-lg: 0 12px 32px rgba(0, 0, 0, .12);--sidebar-width: 240px;--topbar-height: 56px;--tabbar-height: 40px;--radius-sm: 4px;--radius-md: 6px;--radius-lg: 8px;--transition: .18s ease}[data-theme=dark]{--bg: #0f1115;--bg-subtle: #171a21;--bg-inset: #1f242d;--border: #232834;--border-strong: #2d3441;--fg: #e5e7eb;--fg-muted: #9ca3af;--fg-subtle: #6b7280;--accent: #3b82f6;--accent-hover: #60a5fa;--accent-soft: #1e3a5f;--accent-fg: #ffffff;--danger: #f87171;--success: #4ade80;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-lg: 0 12px 32px rgba(0, 0, 0, .5)}*{box-sizing:border-box}html,body,#app{margin:0;padding:0;height:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,PingFang SC,Microsoft YaHei,sans-serif;color:var(--fg);background:var(--bg);font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background var(--transition),color var(--transition)}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover)}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:6px;border:2px solid var(--bg)}::-webkit-scrollbar-thumb:hover{background:var(--fg-subtle)}button{font-family:inherit;cursor:pointer;color:inherit}button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}