:root {
  color-scheme: dark;
  --ink: #f8fafc;
  --paper: #0b0f19;
  --acid: #dfff45;
  --surface: #1e293b;
  --muted: #94a3b8;
  --line: #334155;
  --soft: #1e293b;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--paper); }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, "SF Pro Display", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--acid); text-decoration: none; }

.site-header {
  min-height: 62px;
  padding: 10px max(22px, calc((100vw - 1080px) / 2));
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.page-title { font-size: clamp(13px, 4vw, 16px); font-weight: 760; color: var(--ink); text-align: center; line-height: 1.5; overflow-wrap: anywhere; }

main { width: min(calc(100% - 44px), 860px); margin: 0 auto; padding: 34px 0 90px; }
.document-heading { padding-bottom: 38px; border-bottom: 1px solid var(--line); }
.eyebrow { margin: 0; color: var(--acid); font-size: 12px; font-weight: 850; letter-spacing: .16em; text-transform: uppercase; }
h1 { margin: 14px 0 20px; font-size: clamp(40px, 8vw, 68px); line-height: 1.04; letter-spacing: -.055em; color: var(--ink); }
.lead { max-width: 700px; margin: 0; color: var(--muted); font-size: 17px; line-height: 1.85; }
.effective { margin: 0; color: var(--muted); font-size: 12px; }
.summary {
  margin: 28px 0 2px;
  padding: 24px;
  border-radius: 20px;
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--line);
}
.summary strong { display: block; color: var(--acid); font-size: 14px; }
.summary p { margin: 8px 0 0; color: #cbd5e1; font-size: 14px; line-height: 1.75; }
.fact-grid { margin-top: 14px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.fact-grid span { padding: 11px 12px; border-radius: 12px; background: rgba(255,255,255,.06); font-size: 11px; line-height: 1.4; color: #e2e8f0; }

.legal-section { padding: 34px 0; border-bottom: 1px solid var(--line); }
.legal-section:last-child { border-bottom: 0; }
.legal-section h2 { margin: 0 0 14px; font-size: 21px; letter-spacing: -.02em; color: #f8fafc; }
.legal-section h2 span { display: inline-block; width: 40px; color: var(--acid); font-size: 11px; letter-spacing: .08em; vertical-align: 3px; }
.legal-section p, .legal-section li { color: #cbd5e1; font-size: 15px; line-height: 1.95; }
.legal-section p { margin: 10px 0 0; }
.legal-section ul { margin: 10px 0 0; padding-left: 22px; }
.legal-section li + li { margin-top: 5px; }
.legal-section li::marker { color: var(--acid); }
.legal-section a { color: var(--acid); border-bottom: 1px solid var(--acid); }
.callout { margin-top: 16px; padding: 18px 20px; border-radius: 16px; background: var(--surface); border: 1px solid var(--line); }
.callout strong { display: block; margin-bottom: 5px; font-size: 13px; color: #f8fafc; }
.callout p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.75; }
.license-block {
  margin-top: 16px;
  padding: 16px 20px;
  border-radius: 12px;
  background: #050811;
  border: 1px solid var(--line);
  color: #94a3b8;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
}

footer {
  width: min(calc(100% - 44px), 1080px);
  margin: 0 auto;
  padding: 28px 0 38px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
}

@media (max-width: 620px) {
  .site-header { min-height: 58px; padding: 8px 16px; }
  main { width: min(calc(100% - 36px), 860px); padding: 24px 0 64px; }
  h1 { font-size: 42px; }
  .lead { font-size: 15px; }
  .fact-grid { grid-template-columns: 1fr; }
  .legal-section { padding: 28px 0; }
  .legal-section h2 { font-size: 19px; }
  .legal-section p, .legal-section li { font-size: 14px; line-height: 1.9; }
  footer { width: min(calc(100% - 36px), 1080px); flex-direction: column; }
}