:root{--fg:#1f2933;--bg:#fdfcf7;--muted:#6b7280;--accent:#5b6b9e;--border:#e5e7eb;--code-bg:#f3f4f6}@media (prefers-color-scheme:dark){:root{--fg:#e5e7eb;--bg:#14171c;--muted:#9ca3af;--accent:#9aa9d4;--border:#2d323d;--code-bg:#1e2128}}*{box-sizing:border-box}body,html{margin:0;padding:0}body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Noto Sans TC,sans-serif;font-size:16px;line-height:1.65;color:var(--fg);background:var(--bg);-webkit-font-smoothing:antialiased}main{max-width:56rem;margin:0 auto;padding:2.5rem 1.5rem 5rem}h1{font-size:clamp(1.75rem,4vw,2.5rem);margin:0 0 .5rem;letter-spacing:-.01em}h2{font-size:clamp(1.25rem,2.5vw,1.5rem);margin:2.5rem 0 .75rem}p{margin:0 0 1rem}.lede{color:var(--muted);font-size:1.05rem;max-width:44rem}.lede,section{margin-bottom:2rem}code,pre{font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace;font-size:.9em}pre{border:1px solid var(--border);border-radius:.5rem;padding:1rem 1.1rem;overflow-x:auto}code:not(pre code),pre{background:var(--code-bg)}code:not(pre code){border-radius:.25rem;padding:.1rem .35rem}table{border-collapse:collapse;width:100%;max-width:36rem;font-size:.95em}td,th{padding:.5rem .75rem;border:1px solid var(--border);text-align:left}th{background:var(--code-bg)}.grid-demo{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(280px,100%),1fr));grid-gap:1rem;gap:1rem;align-items:start}.demo-narrow{max-width:240px}.demo-wide{max-width:100%}.demo-label{font-size:.85em;color:var(--muted);margin-bottom:.35rem}.footer{margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--border);color:var(--muted);font-size:.9em}.footer a,a{color:var(--accent)}