:root {
  color-scheme: dark;
  --bg: #07070c;
  --surface: rgba(255, 255, 255, 0.045);
  --surface-strong: rgba(255, 255, 255, 0.075);
  --line: rgba(255, 255, 255, 0.11);
  --text: #f4f5fa;
  --muted: #a9afc1;
  --quiet: #747b91;
  --cyan: #32d6d3;
  --violet: #8b7cff;
  --magenta: #ff4d9d;
  --gradient: linear-gradient(105deg, var(--cyan), var(--violet) 54%, var(--magenta));
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(70% 42% at 80% -5%, rgba(139, 124, 255, 0.16), transparent 72%),
    radial-gradient(52% 36% at 0 20%, rgba(50, 214, 211, 0.09), transparent 75%),
    var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-underline-offset: 4px; }
a:hover { color: var(--cyan); }

.legal-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 7, 12, 0.8);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.legal-nav-inner,
.legal-shell {
  width: min(100% - 40px, 920px);
  margin: 0 auto;
}

.legal-nav-inner {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.legal-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.legal-brand img { width: 28px; height: 28px; }
.legal-home { color: var(--muted); font-size: 14px; text-decoration: none; }

.legal-shell { padding: 80px 0 96px; }

.legal-eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
  font: 700 12px/1.4 ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(36px, 7vw, 58px);
  line-height: 1.15;
  letter-spacing: -0.045em;
}

.legal-lead {
  max-width: 760px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.legal-version {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 28px 0 0;
  color: var(--quiet);
  font: 12px/1.6 ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

.legal-notice {
  margin: 42px 0;
  padding: 22px 24px;
  border: 1px solid rgba(50, 214, 211, 0.22);
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(50, 214, 211, 0.07), rgba(139, 124, 255, 0.06));
  color: #d8dbe5;
}

.legal-toc {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 0 0 48px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
}

.legal-toc a {
  padding: 7px 10px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
}

.legal-toc a:hover { color: var(--text); background: var(--surface-strong); }

.legal-section {
  padding: 36px 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: 88px;
}

.legal-section h2 {
  margin: 0 0 18px;
  font-size: 24px;
  line-height: 1.4;
  letter-spacing: -0.02em;
}

.legal-section h3 { margin: 26px 0 8px; font-size: 17px; }
.legal-section p { margin: 12px 0; color: #c7cad6; }
.legal-section ul, .legal-section ol { margin: 12px 0; padding-left: 24px; color: #c7cad6; }
.legal-section li + li { margin-top: 8px; }
.legal-section strong { color: var(--text); }

.legal-table-wrap { overflow-x: auto; margin: 20px 0; border: 1px solid var(--line); border-radius: 14px; }
.legal-table { width: 100%; min-width: 720px; border-collapse: collapse; font-size: 14px; }
.legal-table th, .legal-table td { padding: 14px 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.legal-table th { color: var(--text); background: var(--surface-strong); font-weight: 700; }
.legal-table td { color: #c7cad6; }
.legal-table tr:last-child td { border-bottom: 0; }

.legal-contact {
  margin-top: 16px;
  padding: 18px 20px;
  border-left: 3px solid var(--violet);
  background: var(--surface);
}

.legal-footer {
  padding: 28px 0 50px;
  border-top: 1px solid var(--line);
  color: var(--quiet);
  text-align: center;
  font-size: 13px;
}

.legal-footer-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px 22px; margin-bottom: 8px; }
.legal-footer-links a { color: var(--muted); }

@media (max-width: 640px) {
  .legal-nav-inner, .legal-shell { width: min(100% - 32px, 920px); }
  .legal-shell { padding: 56px 0 72px; }
  .legal-toc { grid-template-columns: 1fr; }
  .legal-notice { padding: 18px; }
  .legal-section { padding: 30px 0; }
}