:root{
  --bg:#06080E; --surf:#111524; --line:rgba(255,255,255,.08);
  --txt:#EEF2FA; --muted:#9AA7BD; --faint:#5E6A82;
  --grad:linear-gradient(110deg,#6366F1 0%,#22D3EE 55%,#34D399 100%);
}
*{margin:0;padding:0;box-sizing:border-box}
body{background:var(--bg);color:var(--txt);font-family:Inter,system-ui,sans-serif;-webkit-font-smoothing:antialiased;line-height:1.65}
a{color:#22D3EE;text-decoration:none}
a:hover{text-decoration:underline}
.glow{position:fixed;border-radius:50%;filter:blur(120px);opacity:.4;z-index:0;pointer-events:none;width:500px;height:500px;background:rgba(99,102,241,.3);top:-180px;left:-120px}
.wrap{max-width:820px;margin:0 auto;padding:0 22px;position:relative;z-index:1}
.topnav{border-bottom:1px solid var(--line);backdrop-filter:blur(14px);background:rgba(6,8,14,.7);position:sticky;top:0;z-index:10}
.topnav .in{display:flex;align-items:center;justify-content:space-between;height:64px;max-width:820px;margin:0 auto;padding:0 22px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px}
.logo .mark{width:32px;height:32px;border-radius:9px;background:var(--grad);display:grid;place-items:center;font-size:17px;color:#06080E}
.back{font-size:14px;color:var(--muted)}
.doc{padding:54px 0 80px}
.doc h1{font-size:clamp(28px,5vw,42px);font-weight:900;letter-spacing:-1px;margin-bottom:8px}
.doc .upd{color:var(--faint);font-size:13px;margin-bottom:36px}
.doc h2{font-size:20px;font-weight:800;margin:34px 0 12px;padding-top:10px;border-top:1px solid var(--line)}
.doc h3{font-size:16px;font-weight:700;margin:20px 0 8px}
.doc p,.doc li{color:var(--muted);font-size:15px;margin-bottom:12px}
.doc ul{padding-left:22px;margin-bottom:12px}
.doc li{margin-bottom:6px}
.doc strong{color:var(--txt)}
.todo{background:rgba(245,196,81,.1);border:1px solid rgba(245,196,81,.35);border-radius:10px;padding:12px 16px;color:#F5C451;font-size:13.5px;margin:8px 0 16px}
.foot{border-top:1px solid var(--line);padding:30px 0;text-align:center;color:var(--faint);font-size:13px}