:root{color-scheme:light;--ink:#27272a;--muted:#57534e;--brand:#a16207;--paper:#fffbeb;--line:#e7e5e4}*{box-sizing:border-box}body{margin:0;color:var(--ink);font-family:system-ui,-apple-system,"Noto Sans TC",sans-serif;line-height:1.75;background:#fff}header{background:var(--paper);border-bottom:1px solid #fde68a}header,main,footer{padding:28px max(20px,calc((100% - 920px)/2))}nav{display:flex;flex-wrap:wrap;gap:16px;font-size:.95rem}a{color:var(--brand);font-weight:650;text-decoration-thickness:1px;text-underline-offset:3px}h1{font-size:clamp(2rem,6vw,3.2rem);line-height:1.2;margin:48px 0 16px}h2{font-size:1.45rem;line-height:1.35;margin-top:42px}h3{font-size:1.1rem;margin-bottom:4px}.lead{font-size:1.15rem;max-width:780px;color:var(--muted)}main{max-width:980px;margin:auto}.card{border:1px solid var(--line);border-radius:16px;padding:22px;margin:20px 0;background:#fff}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}.cta{display:inline-block;background:var(--brand);color:white;padding:12px 18px;border-radius:999px;text-decoration:none}footer{background:#292524;color:#f5f5f4;margin-top:48px}footer a{color:#fde68a}.updated{color:var(--muted);font-size:.9rem}ul,ol{padding-left:1.4rem}