:root {
  --bg: #faf8f4;
  --fg: #22201c;
  --muted: #6b6560;
  --accent: #5b8def;
  --card: #ffffff;
  --border: #eae5dd;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 48px 20px 80px; }
header.site { display: flex; align-items: center; gap: 12px; margin-bottom: 4px; }
header.site .logo { font-weight: 700; font-size: 20px; letter-spacing: -0.02em; }
h1 { font-size: 28px; letter-spacing: -0.02em; margin: 20px 0 4px; }
h2 { font-size: 19px; margin: 32px 0 8px; }
.updated { color: var(--muted); font-size: 14px; margin-bottom: 8px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.lang { font-size: 14px; color: var(--muted); margin-top: 4px; }
ul { padding-left: 20px; }
li { margin: 6px 0; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 18px 22px; margin-top: 20px; }
footer { margin-top: 56px; color: var(--muted); font-size: 13px; border-top: 1px solid var(--border); padding-top: 20px; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #17150f; --fg: #efe9e0; --muted: #9a938a; --card: #211e18; --border: #322e26; }
}