:root{--background: #f4f7fb;--foreground: #0f172a;--card: #ffffff;--muted: #64748b;--muted-bg: #f1f5f9;--border: #e2e8f0;--primary: #2563eb;--primary-fg: #f8fafc;--danger: #dc2626;--ok: #16a34a;--shadow: 0 1px 2px rgb(15 23 42 / .05), 0 4px 12px -4px rgb(15 23 42 / .08);--radius: 12px;--sans: Inter, ui-sans-serif, system-ui, "Segoe UI", "Microsoft YaHei UI", "PingFang SC", sans-serif;--mono: "JetBrains Mono", Consolas, ui-monospace, monospace}[data-theme=dark]{--background: #0f1218;--foreground: #f1f5f9;--card: #171b22;--muted: #94a3b8;--muted-bg: #1e242e;--border: #2a3140;--primary: #60a5fa;--primary-fg: #0b1220;--danger: #f87171;--ok: #4ade80;--shadow: 0 1px 2px rgb(0 0 0 / .4), 0 8px 24px -12px rgb(0 0 0 / .5)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--background);color:var(--foreground);font-family:var(--sans);font-size:14px;-webkit-font-smoothing:antialiased}.shell{display:grid;grid-template-columns:232px 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