:root{--bg:#0d1117;--card:#161b22;--ink:#e6edf3;--muted:#8b949e;--line:#30363d;--brand:#58a6ff;--brand-dark:#1f6feb;--radius:12px}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7}
a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}
.container{max-width:820px;margin:0 auto;padding:0 20px}
.hd{border-bottom:1px solid var(--line);padding:16px 0}.hd .in{display:flex;align-items:center;justify-content:space-between}
.logo{font-weight:800;font-size:20px;color:var(--ink)}.logo span{color:var(--brand)}
.nav{display:flex;gap:16px}.nav a{color:var(--muted);font-size:14.5px}.nav a:hover{color:var(--ink)}
.hero{padding:48px 0 16px}.hero h1{font-size:clamp(28px,5vw,44px);line-height:1.15;margin:0 0 14px;font-weight:800}
.hero .sub{color:var(--muted);font-size:18px;max-width:640px}
.badge{display:inline-block;background:rgba(88,166,255,.15);color:var(--brand);border-radius:999px;padding:4px 12px;font-size:13px;font-weight:700;margin-bottom:14px}
.code{background:#0d1117;border:1px solid var(--line);border-radius:8px;padding:14px 18px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:14px;color:#79c0ff;overflow-x:auto;margin:16px 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin:16px 0}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin:20px 0}
.feat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px}.feat b{display:block;margin-bottom:4px}.feat span{font-size:14px;color:var(--muted)}
section{padding:24px 0}section h2{font-size:24px;margin:32px 0 12px;font-weight:700}section h3{font-size:18px;margin:20px 0 8px}
section p,section li{color:#c9d1d9;max-width:720px}section ul{padding-left:20px;list-style:disc}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:14px 16px;margin-bottom:10px}.faq summary{font-weight:700;cursor:pointer;color:var(--ink)}.faq p{margin:10px 0 0}
.crumbs{font-size:13px;color:var(--muted);padding:12px 0 0}
.ft{border-top:1px solid var(--line);margin-top:48px;padding:28px 0;font-size:14px;color:var(--muted)}
.cta{display:inline-flex;padding:12px 24px;border-radius:10px;background:var(--brand-dark);color:#fff;font-weight:700;font-size:15px;margin-top:16px}
pre{background:#0d1117;border:1px solid var(--line);border-radius:8px;padding:14px;overflow-x:auto;font-size:13.5px;line-height:1.6}