:root {
  --bg: #fafaf7;
  --fg: #1f2328;
  --muted: #5b626b;
  --line: #dcdcd4;
  --card: #ffffff;
  --accent: #8a2c2c;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15171a;
    --fg: #e6e6e1;
    --muted: #9aa0a8;
    --line: #2d3138;
    --card: #1c1f23;
    --accent: #e08a7a;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  padding: 0 16px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.7 system-ui, -apple-system, "Segoe UI", "Noto Sans TC", "Noto Sans JP", "PingFang TC", "Hiragino Sans", "Microsoft JhengHei", sans-serif;
}
.top, main, footer { width: 100%; max-width: 640px; margin: 0 auto; }
.top { padding: 16px 0 0; }
.lang { display: flex; gap: 16px; justify-content: flex-end; font-size: 14px; }
.lang a { color: var(--muted); text-decoration: none; padding: 4px 0; border-bottom: 2px solid transparent; }
.lang a[aria-current="true"] { color: var(--fg); border-bottom-color: var(--accent); }
main { flex: 1; padding: 48px 0 32px; }
h1 { margin: 0; font-size: 40px; line-height: 1.2; letter-spacing: .02em; }
.sub { margin: 4px 0 0; font-size: 13px; color: var(--muted); }
.lead { margin: 24px 0 24px; font-size: 18px; }
.hero { margin: 0 0 32px; }
.hero img { display: block; width: 100%; max-width: 100%; height: auto; border: 1px solid var(--line); border-radius: 8px; }
@media (prefers-color-scheme: dark) { .hero img { filter: brightness(.92); } }
.cards { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.card {
  display: block;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  color: inherit;
  text-decoration: none;
}
.card-soon { border-style: dashed; background: transparent; color: var(--muted); }
.card-soon .card-name { font-weight: 500; }
.card-soon .card-url { color: var(--muted); }
a.card:hover, a.card:focus-visible { border-color: var(--accent); }
.card:focus-visible, .lang a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.card-name { display: block; font-size: 20px; font-weight: 600; }
.card-desc { display: block; margin-top: 4px; color: var(--muted); }
.card-url { display: block; margin-top: 12px; font-size: 13px; color: var(--accent); }
footer { padding: 24px 0 32px; border-top: 1px solid var(--line); font-size: 13px; color: var(--muted); }
footer p { margin: 0 0 8px; }
@media (min-width: 640px) {
  h1 { font-size: 48px; }
  main { padding-top: 72px; }
  .cards { grid-template-columns: 1fr 1fr; }
}