:root {
  --bg: #0f1420;
  --panel: #171d2b;
  --line: #2b3448;
  --text: #e6eaf2;
  --muted: #8b95ab;
  --accent: #4f8cff;
}
* { box-sizing: border-box; }
body {
  margin: 0; padding: 0 16px 64px;
  background: var(--bg); color: var(--text);
  font: 15px/1.75 -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
}
.wrap { max-width: 760px; margin: 0 auto; }
header {
  position: sticky; top: 0; z-index: 2;
  display: flex; align-items: center; gap: 12px;
  padding: 14px 0; margin-bottom: 8px;
  background: linear-gradient(var(--bg) 78%, transparent);
}
header a { color: var(--accent); text-decoration: none; font-size: 14px; }
header .brand { font-weight: 700; font-size: 16px; color: var(--text); }
h1 { font-size: 24px; margin: 8px 0 4px; }
h2 { font-size: 17px; margin: 28px 0 8px; padding-top: 8px; border-top: 1px solid var(--line); }
h3 { font-size: 15px; margin: 18px 0 6px; color: #cfd6e6; }
p, li { color: #d3d9e6; }
ul, ol { padding-left: 22px; }
li { margin: 4px 0; }
.meta { color: var(--muted); font-size: 13px; margin-bottom: 18px; }
.note {
  background: rgba(79,140,255,.08); border: 1px solid rgba(79,140,255,.35);
  border-radius: 10px; padding: 12px 14px; margin: 16px 0; font-size: 14px;
}
.warn {
  background: rgba(240,180,41,.08); border: 1px solid rgba(240,180,41,.35);
  border-radius: 10px; padding: 12px 14px; margin: 16px 0; font-size: 14px;
}
code { background: var(--panel); border: 1px solid var(--line); border-radius: 4px; padding: 1px 5px; font-size: 13px; }
a { color: var(--accent); }
table { border-collapse: collapse; width: 100%; margin: 10px 0; font-size: 14px; }
th, td { border: 1px solid var(--line); padding: 6px 9px; text-align: left; }
th { background: var(--panel); font-weight: 600; }
footer { margin-top: 40px; padding-top: 14px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
footer a { color: var(--muted); margin-right: 12px; }