:root {
  color-scheme: dark;
  --bg: #070a0f;
  --panel: #0c1119;
  --line: rgba(151, 169, 196, 0.22);
  --ink: #f1f5f9;
  --muted: #a2aec0;
  --cyan: #54d8ff;
  --amber: #f2bd5c;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: Inter, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { background: var(--bg); }
body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background: radial-gradient(780px 420px at 92% -8%, rgba(84, 216, 255, 0.09), transparent 66%), var(--bg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
}
a { color: var(--cyan); text-underline-offset: 3px; }
a:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.legal-shell { width: min(820px, 100%); margin: 0 auto; padding: 28px 22px 72px; }
.legal-header { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.legal-brand { color: var(--ink); font: 800 13px var(--mono); letter-spacing: 0.12em; text-decoration: none; }
.legal-back { display: inline-flex; min-height: 44px; align-items: center; padding: 8px 10px; border: 1px solid var(--line); border-radius: 6px; font-size: 14px; text-decoration: none; }
.legal-eyebrow { margin: 42px 0 10px; color: var(--cyan); font: 700 12px var(--mono); letter-spacing: 0.14em; text-transform: uppercase; }
h1 { margin: 0; font-size: clamp(32px, 7vw, 52px); line-height: 1.08; letter-spacing: -0.035em; }
.legal-meta { margin: 14px 0 0; color: var(--muted); font: 13px var(--mono); }
.legal-intro { margin: 28px 0 0; padding: 18px 20px; border: 1px solid rgba(84, 216, 255, 0.32); border-radius: 8px; background: rgba(84, 216, 255, 0.06); }
h2 { margin: 34px 0 10px; font-size: 20px; line-height: 1.35; }
p { margin: 10px 0; color: #d6deea; }
ul { margin: 10px 0; padding-left: 24px; }
li { margin: 7px 0; color: #d6deea; }
.notice { padding: 14px 16px; border-left: 3px solid var(--amber); background: rgba(242, 189, 92, 0.07); color: #f2dfb2; }
.legal-footer { display: flex; flex-wrap: wrap; gap: 12px 18px; margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font: 13px var(--mono); }

@media (max-width: 520px) {
  .legal-shell { padding-inline: 16px; }
  .legal-header { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; }
}

@media (forced-colors: active) {
  .legal-intro, .notice, .legal-back { border: 1px solid CanvasText; }
}