:root {
  --bg: #ffffff;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --accent: #c79300;
  --line: #e5e5ea;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101214;
    --text: #f2f2f7;
    --muted: #a1a1a6;
    --accent: #ffd42e;
    --line: #2c2c2e;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Helvetica Neue", sans-serif;
  line-height: 1.75;
}
main { max-width: 720px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
header img { width: 48px; height: 48px; border-radius: 11px; }
header .name { font-weight: 700; font-size: 1.2rem; }
nav.lang { margin: 8px 0 24px; font-size: 0.9rem; }
nav.lang a { color: var(--accent); margin-right: 12px; text-decoration: none; }
h1 { font-size: 1.6rem; margin: 0 0 4px; }
h2 { font-size: 1.15rem; margin: 32px 0 8px; padding-top: 16px; border-top: 1px solid var(--line); }
p, li { font-size: 0.98rem; }
.muted { color: var(--muted); font-size: 0.9rem; }
a { color: var(--accent); }
section + section { margin-top: 56px; padding-top: 24px; border-top: 3px solid var(--line); }
footer { margin-top: 48px; color: var(--muted); font-size: 0.85rem; }