:root {
  --bg: #fbf6f4;
  --fg: #2a1d22;
  --muted: #7a6a6f;
  --accent: #b5564f;
  --rule: #ead9d5;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #1a1316; --fg: #f3e9e6; --muted: #b3a2a6; --accent: #f2ada4; --rule: #3a2a2f; color-scheme: dark; }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.75 -apple-system, BlinkMacSystemFont, "PingFang TC", "Noto Sans TC", sans-serif;
}
main {
  max-width: 40rem;
  margin: 0 auto;
  padding-block: 40px 56px;
  padding-left: max(20px, env(safe-area-inset-left));
  padding-right: max(20px, env(safe-area-inset-right));
}
header { display: flex; gap: 16px; align-items: center; margin-bottom: 24px; }
header img { border-radius: 16px; flex: none; }
h1 { font-size: 1.7rem; line-height: 1.3; margin: 0; }
.sub { margin: 4px 0 0; color: var(--muted); font-size: 0.95rem; }
.lead { font-size: 1.1rem; font-weight: 600; }
h2 { font-size: 1.15rem; margin: 32px 0 8px; padding-top: 20px; border-top: 1px solid var(--rule); }
h3 { font-size: 1rem; margin: 18px 0 4px; }
p, ul { margin: 0 0 10px; }
ul { padding-left: 1.2em; }
a { color: var(--accent); }
footer { margin-top: 40px; font-size: 0.95rem; }