:root {
  color-scheme: dark;
  --bg: #071015;
  --panel: #0d181e;
  --line: #20323a;
  --ink: #edf7f3;
  --muted: #9aaba5;
  --accent: #61e1c1;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(circle at 12% 0%,#103139 0,transparent 34rem),var(--bg);
  color: var(--ink);
  font-family: -apple-system,BlinkMacSystemFont,"PingFang SC","Helvetica Neue",sans-serif;
}
main { width: min(780px,calc(100% - 36px)); margin: 0 auto; padding: 64px 0 90px; }
.brand { color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .16em; }
h1 { margin: 12px 0 8px; font-size: clamp(34px,7vw,54px); letter-spacing: -.04em; }
.updated { margin: 0 0 34px; color: var(--muted); font-size: 13px; }
section { margin: 14px 0; padding: 22px; border: 1px solid var(--line); border-radius: 16px; background: rgba(13,24,30,.88); }
h2 { margin: 0 0 10px; font-size: 18px; }
p,li { color: #c2d0cb; font-size: 15px; line-height: 1.75; }
ul { margin: 8px 0 0; padding-left: 22px; }
a { color: var(--accent); }
.notice { border-color: rgba(97,225,193,.35); background: rgba(97,225,193,.07); }
footer { margin-top: 30px; color: var(--muted); font-size: 12px; }