:root {
  --bg: #F5F5F6;
  --surface: #ffffff;
  --ink: #0B0B0F;
  --ink-soft: #6B7280;
  --accent: #16A34A;
  --accent-ink: #0C6B33;
  --accent-bg: #EAF6EE;
  --line: rgba(0, 0, 0, 0.08);
  --warn-bg: #FEF4E2;
  --warn-ink: #92560A;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 40px 20px 80px; }
header.site { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand .dot { width: 14px; height: 14px; border-radius: 50%; background: var(--accent); flex: none; }
.brand .name { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; }
.langs { display: flex; gap: 6px; background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 4px; }
.langs button {
  border: 0; background: transparent; color: var(--ink-soft); font: inherit; font-size: 14px;
  font-weight: 600; padding: 6px 16px; border-radius: 999px; cursor: pointer;
}
.langs button.active { background: var(--ink); color: #fff; }
h1 { font-size: 28px; font-weight: 800; letter-spacing: -0.02em; margin: 36px 0 6px; }
.updated { color: var(--ink-soft); font-size: 14px; margin: 0 0 24px; }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: 22px;
  padding: 26px 28px; margin-top: 18px;
}
.card h2 { font-size: 17px; font-weight: 700; margin: 26px 0 6px; }
.card h2:first-child { margin-top: 0; }
.card p { margin: 8px 0; color: #374151; font-size: 15.5px; }
.notice {
  background: var(--warn-bg); color: var(--warn-ink); border-radius: 14px;
  padding: 14px 16px; font-size: 15px; margin: 18px 0 0;
}
.notice strong { display: block; margin-bottom: 4px; }
nav.pages { margin-top: 14px; display: flex; gap: 10px; flex-wrap: wrap; }
nav.pages a {
  color: var(--accent-ink); background: var(--accent-bg); text-decoration: none;
  font-size: 14px; font-weight: 600; padding: 8px 16px; border-radius: 999px;
}
nav.pages a.current { background: var(--ink); color: #fff; }
footer.site { margin-top: 48px; color: var(--ink-soft); font-size: 13.5px; text-align: center; }
footer.site a { color: var(--accent-ink); }
[hidden] { display: none !important; }