:root { color-scheme: dark; }
* { box-sizing: border-box; }
body { background:#06101F; color:#F7FBFF; margin:0;
  font-family:-apple-system, system-ui, "Segoe UI", Roboto, sans-serif;
  line-height:1.62; font-size:15px; }
.lgbar { position:sticky; top:0; z-index:5; display:flex; align-items:center; gap:12px;
  padding:max(16px, calc(10px + env(safe-area-inset-top))) 18px 12px;
  background:rgba(6,16,31,.92); backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.07); }
.lgback { display:inline-flex; align-items:center; gap:8px; border:1px solid #24374E;
  background:#0C1A2D; color:#F7FBFF; border-radius:12px; padding:9px 14px;
  font:inherit; font-size:14px; font-weight:700; cursor:pointer; }
.lgback:active { background:#132741; }
.lgbar b { font-size:14px; color:#7F91A6; font-weight:600; }
.lgwrap { max-width:640px; margin:0 auto;
  padding:22px 22px max(48px, calc(28px + env(safe-area-inset-bottom))); }
h1 { font-size:23px; line-height:1.2; margin:6px 0 4px; }
.upd { color:#7F91A6; font-size:13px; margin:0 0 22px; }
h2 { font-size:16px; margin:26px 0 8px; }
p, li { color:#AEBDCD; }
li { margin-bottom:6px; }
ul { padding-left:20px; }
a { color:#43BFF6; }
b { color:#F7FBFF; }
.req { margin-top:28px; padding:14px 16px; background:#0C1A2D; border:1px solid #24374E;
  border-radius:14px; font-size:14px; }