:root{--background:#fff;--foreground:#1e293b;--muted-foreground:#64748b;--secondary:#f1f5f9;--muted:#f1f5f9;--border:#dbe2ea;--accent:#e2e8f0;--blue:#2563eb;--green:#16a34a;--orange:#ea580c;--purple:#9333ea;--red:#dc2626;--yellow:#ca8a04;--viz-series-1:#2563eb;--viz-series-2:#ea580c;color-scheme:light}*{box-sizing:border-box}body{margin:0;background:#f5f7fa;color:var(--foreground);font:16px/1.6 system-ui,-apple-system,"PingFang SC",sans-serif}main{max-width:1120px;margin:24px auto;padding:24px;background:#fff;border-radius:12px}h1{font-size:26px;margin:12px 0 24px}a{color:#2563eb}.viz-controls,.viz-row{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin:12px 0}.viz-controls{justify-content:flex-start}.btn,select{font:inherit;border:1px solid var(--border);border-radius:7px;background:#fff;padding:8px 14px;color:var(--foreground)}.btn{cursor:pointer}.btn-primary{background:#2563eb;color:#fff;border-color:#2563eb}.btn:disabled{opacity:.45;cursor:default}.btn:focus-visible,select:focus-visible{outline:3px solid #93c5fd}.form-label{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.form-range{accent-color:#2563eb}.text-small{font-size:13px}.text-muted{color:var(--muted-foreground)}.tabular-nums{font-variant-numeric:tabular-nums}hr{border:0;border-top:1px solid var(--border);margin:20px 0}svg{max-width:100%}@media(max-width:600px){main{margin:0;padding:14px;border-radius:0}h1{font-size:22px}.btn,select{padding:7px 10px}}