:root {
  --bg: #0a0a0a;
  --panel: #151515;
  --ink: #e8e4dd;
  --muted: #a69c94;
  --rule: #2a2520;
  --gold: #c9a84c;
  --max: 1040px;
}

* { box-sizing: border-box; }

html { color-scheme: dark; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--gold); text-underline-offset: 0.2em; }
a:hover { color: #e0c56d; }
a:focus-visible { outline: 2px solid var(--gold); outline-offset: 4px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(10, 10, 10, 0.96);
  border-bottom: 1px solid var(--rule);
}

.nav {
  width: min(var(--max), calc(100% - 40px));
  min-height: 58px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  color: var(--gold);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-decoration: none;
}

.nav-links { display: flex; flex-wrap: wrap; gap: 18px; justify-content: flex-end; }
.nav-links a { color: var(--muted); font-size: 0.76rem; letter-spacing: 0.08em; text-decoration: none; text-transform: uppercase; }
.nav-links a:hover { color: var(--gold); }

main { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; padding: 72px 0 96px; }

.eyebrow {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1, h2, h3 { font-family: Georgia, "Times New Roman", "Songti SC", serif; line-height: 1.22; }
h1 { max-width: 880px; margin: 0; font-size: clamp(2.2rem, 6vw, 4.5rem); }
h2 { margin: 64px 0 20px; font-size: clamp(1.7rem, 3vw, 2.5rem); }
h3 { margin: 34px 0 10px; color: var(--gold); font-size: 1.25rem; }
p { max-width: 820px; }

.lead { max-width: 850px; margin-top: 28px; color: #d2ccc5; font-size: 1.16rem; }
.meta { margin-top: 18px; color: var(--muted); font-size: 0.86rem; }
.rule { width: 54px; height: 2px; margin: 24px 0 30px; background: var(--gold); }

.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin: 28px 0; }
.card { min-width: 0; padding: 24px; background: var(--panel); border: 1px solid var(--rule); }
.card h3 { margin-top: 0; }
.card p:last-child { margin-bottom: 0; }
.label { color: var(--muted); font-size: 0.82rem; letter-spacing: 0.06em; text-transform: uppercase; }
.value { margin-top: 4px; color: var(--ink); font-size: 1.04rem; overflow-wrap: anywhere; }

table { width: 100%; margin: 24px 0 34px; border-collapse: collapse; background: var(--panel); }
th, td { padding: 14px 16px; border: 1px solid var(--rule); text-align: left; vertical-align: top; }
th { color: var(--gold); font-size: 0.84rem; letter-spacing: 0.05em; }

.answer { padding: 0 0 28px; border-bottom: 1px solid var(--rule); }
.answer h2 { margin-bottom: 14px; font-size: 1.65rem; }
.answer p { margin-bottom: 0; }

.notice { margin: 36px 0; padding: 22px 24px; border-left: 3px solid var(--gold); background: var(--panel); }
.notice p { margin: 0; }

.plain-list { padding-left: 1.25rem; }
.plain-list li { margin: 0.55rem 0; }
.source-list { list-style: none; padding: 0; }
.source-list li { padding: 20px 0; border-bottom: 1px solid var(--rule); }
.source-list p { margin: 6px 0 0; color: var(--muted); }
.source-type { display: inline-block; margin-right: 8px; color: var(--gold); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; }

.cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.button { display: inline-block; padding: 11px 18px; border: 1px solid var(--gold); color: var(--gold); font-size: 0.82rem; font-weight: 700; letter-spacing: 0.06em; text-decoration: none; text-transform: uppercase; }
.button.primary { background: var(--gold); color: #0a0a0a; }

.site-footer { border-top: 1px solid var(--rule); }
.footer-inner { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; padding: 34px 0 52px; color: var(--muted); font-size: 0.86rem; }
.footer-inner p { margin: 4px 0; }

@media (max-width: 760px) {
  body { font-size: 16px; }
  .nav { align-items: flex-start; padding: 14px 0; }
  .nav-links { gap: 10px 14px; }
  .nav-links a { font-size: 0.7rem; }
  main { padding-top: 48px; }
  .grid { grid-template-columns: 1fr; }
  table { display: block; overflow-x: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}