:root {
  --bg: #f7f8fa;
  --card: #ffffff;
  --ink: #1f2430;
  --sub: #5b6475;
  --line: #e3e6ec;
  --accent: #1d4ed8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161b;
    --card: #1c1f26;
    --ink: #e8eaef;
    --sub: #a3aab8;
    --line: #2c313b;
    --accent: #7aa2ff;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
  line-height: 1.75;
}
a { color: var(--accent); }
header, main, footer { max-width: 760px; margin: 0 auto; padding: 0 16px; }
header { padding-top: 40px; padding-bottom: 8px; }
header .name { font-size: 1.5rem; font-weight: 700; margin: 0; }
header .en { color: var(--sub); margin: 2px 0 0; font-size: 0.95rem; }
nav { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 16px; font-size: 0.95rem; }
section {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px 22px;
  margin: 20px 0;
}
h1 { font-size: 1.35rem; margin: 0 0 4px; }
h2 { font-size: 1.1rem; margin: 22px 0 6px; }
section > h2:first-child { margin-top: 0; }
p, li { color: var(--ink); }
.meta { color: var(--sub); font-size: 0.9rem; margin: 0 0 12px; }
dl { display: grid; grid-template-columns: max-content 1fr; gap: 6px 18px; margin: 0; }
dt { color: var(--sub); }
dd { margin: 0; }
footer { color: var(--sub); font-size: 0.85rem; padding-bottom: 40px; }