:root{--bg:#fff;--bg-alt:#f3f6fb;--text:#14171c;--muted:#4f5866;--primary:#1f5fd6;--primary-dark:#174aa8;--border:#d6dbe3;--badge-bg:#e7efff;--radius:14px;--font:system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}@media (prefers-color-scheme:dark){:root{--bg:#0f1216;--bg-alt:#161b22;--text:#eef1f5;--muted:#a7b0bd;--primary:#6f9cff;--primary-dark:#8db0ff;--border:#2b323c;--badge-bg:#1d2a44}}html[lang=zh-Hant]{--font:system-ui, -apple-system, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif}html[lang=zh-Hans]{--font:system-ui, -apple-system, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);font-family:var(--font);-webkit-text-size-adjust:100%;margin:0;font-size:17px;line-height:1.6}a{color:var(--primary)}a:focus-visible,.button:focus-visible{outline:3px solid var(--primary);outline-offset:3px;border-radius:6px}.container{max-width:1040px;margin:0 auto;padding:0 16px}.narrow{max-width:720px}.muted{color:var(--muted)}.small{font-size:15px}.skip-link{position:absolute;left:-9999px}.skip-link:focus{background:var(--bg);z-index:10;padding:8px 12px;top:8px;left:16px}.site-header{border-bottom:1px solid var(--border)}.header-inner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;min-height:64px;display:flex}.brand{color:var(--text);font-size:20px;font-weight:800;text-decoration:none}.brand span{color:var(--primary)}.language-switch{flex-wrap:wrap;gap:4px;display:flex}.language-switch a,.language-switch span{border-radius:8px;align-items:center;min-height:44px;padding:0 10px;font-size:15px;display:inline-flex}.language-switch a{text-decoration:none}.language-switch a:hover{background:var(--bg-alt)}.language-switch span{font-weight:700}.hero{padding:56px 0 48px}.hero h1{max-width:18em;margin:12px 0 16px;font-size:clamp(30px,6vw,48px);line-height:1.2}.lead{color:var(--muted);max-width:40em;margin:0 0 24px;font-size:19px}.badge{background:var(--badge-bg);color:var(--primary-dark);border-radius:999px;margin:0;padding:4px 12px;font-size:14px;font-weight:700;display:inline-block}.button{background:var(--primary);color:#fff;border-radius:12px;justify-content:center;align-items:center;min-height:48px;padding:0 24px;font-weight:700;text-decoration:none;display:inline-flex}.button:hover{background:var(--primary-dark)}@media (prefers-color-scheme:dark){.button{color:#0f1216}}.section{padding:48px 0}.section.alt{background:var(--bg-alt)}.section h2{margin:0 0 24px;font-size:clamp(24px,4vw,32px);line-height:1.25}.cards{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin:0;padding:0;list-style:none;display:grid}.card{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg);padding:20px}.card h3{margin:0 0 8px;font-size:19px}.card p{color:var(--muted);margin:0}.steps{gap:12px;max-width:44em;margin:0;padding-left:1.4em;display:grid}.site-footer{border-top:1px solid var(--border);padding:32px 0;font-size:15px}.footer-inner p{margin:4px 0}.footer-links{flex-wrap:wrap;gap:16px;margin:8px 0;display:flex}.footer-links a{align-items:center;min-height:44px;display:inline-flex}.legal{padding:40px 0 56px}.legal h1{margin:0 0 8px;font-size:clamp(28px,5vw,38px)}.legal h2{margin:32px 0 8px;font-size:22px}.legal li{margin:4px 0}.draft-banner{color:#5c3b00;background:#fff6e0;border:2px solid #c47f00;border-radius:10px;margin:16px 0 24px;padding:12px 16px;font-weight:600}@media (prefers-color-scheme:dark){.draft-banner{color:#ffd98a;background:#2e2410}}.not-found{border-bottom:1px solid var(--border);padding:16px 0 24px}.not-found:last-child{border-bottom:0}