:root{color-scheme:dark;--bg:#080b12;--panel:#111724;--line:rgba(255,255,255,.1);--text:#f4f7fb;--muted:#a9b5c5;--cyan:#57e1df;font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;color:var(--text);background:radial-gradient(circle at 8% 0,#173f4d77,transparent 31rem),radial-gradient(circle at 100% 8%,#382b6b77,transparent 32rem),var(--bg)}a{color:inherit;text-decoration:none}.shell{width:min(980px,calc(100% - 40px));margin:auto}.topbar{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line)}.brand{display:inline-flex;gap:10px;align-items:center;font-weight:800;letter-spacing:.08em}.brand-mark{width:36px;height:36px;display:grid;place-items:center;color:#041113;background:linear-gradient(135deg,#94efea,#4ac6d6 52%,#a98cff);border-radius:11px}.nav{display:flex;flex-wrap:wrap;gap:18px;color:#bdc8d7;font-size:14px}.nav a:hover{color:var(--cyan)}main{padding:58px 0 72px}.eyebrow{margin:0 0 14px;color:var(--cyan);font-size:12px;font-weight:800;letter-spacing:.17em}h1{max-width:800px;margin:0;font-size:clamp(35px,6vw,64px);line-height:1.13;letter-spacing:-.045em}h2{margin:44px 0 16px;font-size:clamp(25px,4vw,36px);letter-spacing:-.03em}h3{margin:0 0 8px;font-size:19px}p,li{color:var(--muted);line-height:1.9;font-size:16px}.intro{max-width:760px;margin:20px 0 0;font-size:18px}.notice{margin-top:28px;padding:16px 18px;border:1px solid rgba(87,225,223,.25);border-radius:15px;color:#c5efed;background:rgba(54,197,205,.08);line-height:1.75}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-top:40px}.card{min-height:190px;padding:24px;border:1px solid var(--line);border-radius:18px;background:linear-gradient(145deg,rgba(255,255,255,.055),rgba(255,255,255,.018));transition:transform .18s,border-color .18s}.card:hover{transform:translateY(-3px);border-color:rgba(87,225,223,.48)}.card p{margin:0;font-size:14px}.card .tag{display:inline-block;margin-bottom:12px;color:var(--cyan);font-size:11px;font-weight:800;letter-spacing:.12em}.cta{display:inline-flex;align-items:center;justify-content:center;gap:8px;margin-top:32px;padding:13px 19px;border-radius:12px;color:#031214;background:linear-gradient(135deg,#84efec,#34cbd6);font-weight:850}.toc{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}.toc a{padding:9px 13px;border:1px solid var(--line);border-radius:999px;color:#c4cfdd;font-size:13px}.toc a:hover{color:var(--cyan);border-color:rgba(87,225,223,.5)}.steps{display:grid;gap:12px;padding:0;list-style:none;counter-reset:step}.steps li{position:relative;padding:17px 18px 17px 64px;margin:0;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.025)}.steps li::before{counter-increment:step;content:"0" counter(step);position:absolute;left:18px;top:17px;color:var(--cyan);font-weight:850}.example{margin:18px 0;padding:19px;overflow:auto;border:1px solid rgba(155,135,255,.3);border-radius:14px;background:#0c111c;color:#d4ddeb;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;white-space:pre-wrap;line-height:1.8}.faq{margin-top:22px;border-top:1px solid var(--line)}.faq details{padding:16px 0;border-bottom:1px solid var(--line)}.faq summary{cursor:pointer;color:#edf5fa;font-weight:700}.faq p{margin:10px 0 0}.footer{padding:28px 0 44px;border-top:1px solid var(--line);color:#9aa8b9;font-size:13px}.footer div{display:flex;flex-wrap:wrap;gap:15px}@media(max-width:700px){.topbar{padding:14px 0;align-items:flex-start;flex-direction:column}.grid{grid-template-columns:1fr}.nav{gap:14px}.shell{width:min(100% - 32px,980px)}main{padding-top:38px}}