:root {
  --bg: #f5f1ea;
  --card: #ffffff;
  --ink: #1c2b28;
  --ink-2: #4a5b57;
  --muted: #7a8a86;
  --brand: #2f6c62;
  --border: #e2ddd2;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1614;
    --card: #17221f;
    --ink: #ecf3f0;
    --ink-2: #b8c5c1;
    --muted: #8a9995;
    --brand: #63b7ab;
    --border: #223330;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Noto Sans TC", "Microsoft JhengHei", system-ui, sans-serif;
  line-height: 1.8;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 32px 16px 48px; }
header { margin-bottom: 20px; }
.org { color: var(--muted); font-size: 14px; }
h1 { font-size: 28px; margin: 4px 0 8px; line-height: 1.4; }
h2 { font-size: 19px; margin: 28px 0 8px; color: var(--brand); }
p, li { color: var(--ink-2); }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 20px 22px; }
ul { padding-left: 1.3em; }
a { color: var(--brand); }
nav { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 8px; font-size: 15px; }
footer { margin-top: 32px; color: var(--muted); font-size: 13px; }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 600; white-space: nowrap; }