:root {
  color-scheme: dark;
  --bg: #121211;
  --surface: #1d1c1a;
  --surface-2: #292725;
  --text: #f4f1ed;
  --muted: #bbb4ac;
  --line: #ffffff1c;
  --accent: #ffd12d;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: radial-gradient(circle at 80% 0, #383126 0, transparent 32%), var(--bg); color: var(--text); font: 16px/1.72 Inter, "Noto Sans TC", "Segoe UI", sans-serif; }
a { color: var(--accent); }
.shell { width: min(1060px, calc(100% - 40px)); margin: 0 auto; }
header { border-bottom: 1px solid var(--line); background: #121211e8; position: sticky; top: 0; z-index: 2; backdrop-filter: blur(16px); }
nav { min-height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { font: 700 24px Georgia, "Noto Serif TC", serif; color: var(--text); text-decoration: none; }
.brand span { color: var(--accent); }
.nav-links { display: flex; gap: 20px; font-size: 14px; }
main { padding: 72px 0 100px; }
.hero { padding: 30px 0 54px; max-width: 800px; }
.eyebrow { color: var(--accent); letter-spacing: .17em; font-weight: 800; font-size: 12px; text-transform: uppercase; }
h1, h2, h3 { font-family: Georgia, "Noto Serif TC", serif; line-height: 1.15; }
h1 { font-size: clamp(40px, 7vw, 72px); margin: 14px 0 20px; }
h2 { font-size: 32px; margin: 60px 0 18px; }
h3 { font-size: 21px; margin: 30px 0 8px; }
p, li { color: var(--muted); }
.lead { font-size: 20px; color: #ddd7d0; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 18px; }
.card, .notice { background: linear-gradient(145deg, var(--surface-2), var(--surface)); border: 1px solid var(--line); border-radius: 22px; padding: 24px; }
.card h3 { margin-top: 0; color: var(--text); }
.card p { margin-bottom: 0; }
.notice { border-left: 4px solid var(--accent); }
table { width: 100%; border-collapse: collapse; display: block; overflow-x: auto; }
th, td { text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); padding: 16px 14px; min-width: 160px; }
th { color: var(--text); background: #ffffff08; }
code { color: #ffe588; background: #0005; padding: .1em .35em; border-radius: 5px; }
section[id] { scroll-margin-top: 90px; }
footer { border-top: 1px solid var(--line); padding: 30px 0 50px; color: var(--muted); }
@media (max-width: 620px) { .nav-links { display: none; } main { padding-top: 44px; } }