:root {
  color-scheme: dark;
  --ink: #0b0d0f;
  --bone: #e8e4da;
  --bone-dim: rgba(232, 228, 218, .64);
  --signal: #ffb347;
  --line: rgba(232, 228, 218, .18);
  --f-display: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', system-ui, sans-serif;
  --f-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--ink); color: var(--bone); font: 16px/1.75 var(--f-display); -webkit-font-smoothing: antialiased; }
a { color: var(--signal); text-decoration: none; border-bottom: 1px solid rgba(255, 179, 71, .35); }
a:hover { border-bottom-color: var(--signal); }
.wrap { max-width: 860px; margin: 0 auto; padding: 0 24px; }
header.site { border-bottom: 1px solid var(--line); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.brand { font-weight: 700; letter-spacing: .06em; font-size: 15px; color: var(--bone); border: 0; }
.nav { display: flex; gap: 20px; font: 12px/1 var(--f-mono); letter-spacing: .04em; align-items: center; }
main { padding: 56px 0 80px; }
.eyebrow { font: 600 11px/1 var(--f-mono); letter-spacing: .26em; text-transform: uppercase; color: var(--signal); margin: 0 0 20px; }
.eyebrow .wordmark { text-transform: none; letter-spacing: .06em; }
h1 { font-size: clamp(32px, 5.2vw, 56px); line-height: 1.16; letter-spacing: -.01em; margin: 0 0 24px; font-weight: 700; }
.lede { font-size: clamp(17px, 2vw, 20px); line-height: 1.8; margin: 0 0 28px; max-width: 62ch; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin: 0 0 48px; }
.btn { display: inline-block; border: 1px solid var(--signal); background: var(--signal); color: var(--ink); padding: 13px 26px; font-weight: 600; font-size: 15px; letter-spacing: .04em; }
.btn:hover { background: #ffc977; border-color: #ffc977; }
.btn.ghost { background: transparent; color: var(--bone); border-color: var(--line); }
figure { margin: 0 0 56px; }
figure img { display: block; width: 100%; height: auto; border: 1px solid var(--line); }
figcaption { font: 12px/1.6 var(--f-mono); color: var(--bone-dim); margin-top: 10px; }
section { margin: 0 0 56px; scroll-margin-top: 24px; }
h2 { font-size: clamp(22px, 3vw, 30px); line-height: 1.3; margin: 0 0 18px; font-weight: 650; }
h3 { font-size: 17px; margin: 28px 0 8px; }
p { margin: 0 0 16px; max-width: 68ch; }
table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 0 0 16px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { width: 34%; font-weight: 400; color: var(--bone-dim); font: 12px/1.6 var(--f-mono); letter-spacing: .04em; }
ul { padding-left: 20px; max-width: 68ch; }
li { margin-bottom: 8px; }
dl.faq { margin: 0; }
dl.faq dt { font-weight: 600; margin: 22px 0 6px; font-size: 16px; }
dl.faq dd { margin: 0; color: var(--bone-dim); max-width: 68ch; }
.note { font: 12px/1.7 var(--f-mono); color: var(--bone-dim); border-left: 2px solid var(--line); padding-left: 14px; margin-top: 18px; }
kbd { font: 12px/1 var(--f-mono); border: 1px solid var(--line); padding: 3px 6px; border-radius: 3px; color: var(--bone); }
footer.site { border-top: 1px solid var(--line); padding: 28px 0 40px; font: 12px/1.9 var(--f-mono); color: var(--bone-dim); }
footer.site .wrap { display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }
@media (max-width: 600px) {
  .wrap { padding: 0 18px; }
  main { padding: 36px 0 60px; }
  th { width: 42%; }
  table { font-size: 13px; }
  header.site .wrap { min-height: 56px; }
}