:root {
  --bg: #f6f4ee;
  --surface: #ffffff;
  --ink: #1d2a2e;
  --muted: #56666b;
  --brand: #2c5e6b;
  --brand-ink: #f3f1ea;
  --gold: #a87b25;
  --line: #e2ddd1;
  --mark: #fff3c4;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12191b;
    --surface: #1a2427;
    --ink: #e9ece9;
    --muted: #a3b0b2;
    --brand: #4f8a99;
    --brand-ink: #f3f1ea;
    --gold: #d9ac52;
    --line: #2b3a3e;
    --mark: #4a3f1c;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--brand); }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }
header.top { padding: 28px 0 8px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); }
.brand img { width: 44px; height: 44px; border-radius: 10px; }
.brand span { font-weight: 700; font-size: 22px; letter-spacing: -0.01em; }
.hero { padding: 40px 0 24px; }
.hero h1 { font-size: clamp(30px, 6vw, 44px); line-height: 1.15; margin: 0 0 12px; letter-spacing: -0.02em; }
.hero p { color: var(--muted); font-size: 19px; margin: 0; }
.apps { display: grid; gap: 16px; padding: 16px 0 40px; }
@media (min-width: 640px) { .apps { grid-template-columns: 1fr 1fr; } }
.app { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 22px; }
.app-head { display: flex; align-items: center; gap: 14px; margin: 0 0 8px; }
.app-head img { border-radius: 12px; flex: none; }
.app h2 { margin: 0; font-size: 21px; }
.app .tag { color: var(--gold); font-weight: 600; font-size: 14px; margin: 0 0 10px; }
.app p { margin: 0 0 10px; }
.app a.go { display: inline-block; margin-top: 6px; font-weight: 600; }
.doc { padding: 24px 0 48px; }
.doc h1 { font-size: 32px; line-height: 1.2; margin: 8px 0 4px; }
.doc h2 { font-size: 21px; margin: 32px 0 8px; }
.doc .updated { color: var(--muted); margin: 0 0 24px; }
.doc table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 8px 0 16px; }
.doc th, .doc td { text-align: left; vertical-align: top; padding: 8px 10px; border-bottom: 1px solid var(--line); }
.doc th { font-weight: 600; }
.table-scroll { overflow-x: auto; }
mark { background: var(--mark); color: inherit; padding: 0 3px; border-radius: 3px; }
footer.bottom { border-top: 1px solid var(--line); padding: 20px 0 40px; color: var(--muted); font-size: 15px; }
footer.bottom a { margin-right: 16px; }