:root{--bg:#0f1115;--panel:#1a1e27;--line:#2a3040;--ink:#eef1f6;--muted:#98a1b3;--signal:#ff453a;--accent:#4dd6c1;--radius:16px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}
.wrap{max-width:860px;margin:0 auto;padding:0 22px}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
header.nav{display:flex;align-items:center;justify-content:space-between;padding:20px 0;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:16px}
.brand img{width:30px;height:30px;border-radius:8px}
.nav-links a{color:var(--muted);font-weight:600;font-size:14px;margin-left:20px}
.nav-links a:hover{color:var(--ink);text-decoration:none}
.hero{padding:64px 0 40px;text-align:center}
.hero h1{font-size:40px;line-height:1.15;margin:0 0 14px;letter-spacing:-.02em}
.hero p{font-size:18px;color:var(--muted);max-width:620px;margin:0 auto 28px}
.cta{display:inline-flex;align-items:center;gap:10px;background:var(--signal);color:#fff;font-weight:700;padding:13px 22px;border-radius:12px}
.cta:hover{background:#ff5e54;text-decoration:none}
.cta.secondary{background:transparent;color:var(--muted);border:1px solid var(--line);margin-left:10px}
.cta.secondary:hover{color:var(--ink)}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;padding:24px 0 56px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.card h3{margin:0 0 8px;font-size:16px}
.card p{margin:0;color:var(--muted);font-size:14px}
.dot{display:inline-block;width:10px;height:10px;border-radius:50%;background:var(--signal);margin-right:6px;vertical-align:middle}
.doc{padding:48px 0 80px}
.doc h1{font-size:32px;margin:0 0 6px}
.doc .updated{color:var(--muted);font-size:14px;margin-bottom:28px}
.doc h2{font-size:20px;margin:34px 0 10px;border-top:1px solid var(--line);padding-top:26px}
.doc h2:first-of-type{border-top:0;padding-top:0}
.doc p,.doc li{color:#d4dae6}
.doc strong{color:var(--ink)}
.doc code{background:var(--panel);border:1px solid var(--line);padding:2px 6px;border-radius:6px;font-size:13px}
footer{border-top:1px solid var(--line);padding:28px 0;color:var(--muted);font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
footer a{color:var(--muted)}
.note{background:rgba(255,69,58,.08);border:1px solid rgba(255,69,58,.3);border-radius:10px;padding:12px 14px;color:#ffb3ad;font-size:13px;margin:20px 0}