:root {
  --bg: #ffffff;
  --fg: #1d1d1f;
  --muted: #6e6e73;
  --accent: #00737D;
  --gold: #E07A00;
  --card: #f5f5f7;
  --border: #e3e3e8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1220;
    --fg: #f2f2f5;
    --muted: #a1a1aa;
    --accent: #2BB8C2;
    --gold: #FFB81C;
    --card: #181c2e;
    --border: #2a2f45;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Segoe UI", Roboto, sans-serif;
  line-height: 1.7;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 32px 20px 80px; }
header.site { display: flex; align-items: center; gap: 14px; padding: 8px 0 24px; }
header.site img { width: 44px; height: 44px; border-radius: 10px; border: 1px solid var(--border); }
header.site h1 { font-size: 20px; margin: 0; }
nav a { color: var(--accent); text-decoration: none; margin-right: 16px; font-size: 15px; }
nav a:hover { text-decoration: underline; }
hr { border: none; border-top: 1px solid var(--border); margin: 28px 0; }
h1 { line-height: 1.3; }
h2 { font-size: 22px; margin-top: 36px; }
h3 { font-size: 17px; margin-top: 28px; }
a { color: var(--accent); }
.muted { color: var(--muted); font-size: 14px; }
.lead { font-size: 18px; }
.hero { text-align: center; padding: 24px 0 8px; }
.hero img { width: 120px; height: 120px; border-radius: 27px; border: 1px solid var(--border); }
.hero h1 { font-size: 34px; margin: 16px 0 4px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 18px 20px; margin: 18px 0; }
.card h3 { margin-top: 0; }
.card h3::before { content: ""; display: inline-block; width: 4px; height: 0.9em; border-radius: 2px; background: var(--gold); margin-right: 10px; vertical-align: -0.05em; }
ul, ol { padding-left: 22px; }
footer { margin-top: 56px; color: var(--muted); font-size: 13px; }