:root {
  --bg: #08111f;
  --bg-soft: rgba(255, 255, 255, 0.05);
  --card: rgba(255, 255, 255, 0.06);
  --line: rgba(255, 255, 255, 0.10);
  --line-strong: rgba(91, 214, 196, 0.22);
  --text: rgba(255, 255, 255, 0.96);
  --muted: rgba(221, 230, 242, 0.74);
  --subtle: rgba(221, 230, 242, 0.52);
  --brand: #5bd6c4;
  --brand-strong: #36b7c5;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(91, 214, 196, 0.16), transparent 32%),
    radial-gradient(circle at 85% 12%, rgba(54, 183, 197, 0.14), transparent 26%),
    linear-gradient(180deg, #08111f 0%, #0d1830 100%);
  color: var(--text);
  line-height: 1.9;
}

a {
  color: inherit;
  text-decoration: none;
}

.legal-page {
  min-height: 100vh;
}

.legal-shell {
  width: min(980px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 56px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 14px;
}

.back-link:hover {
  color: var(--text);
}

.legal-hero,
.legal-card {
  border-radius: 24px;
  border: 1px solid var(--line);
  background: var(--card);
  backdrop-filter: blur(14px);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.22);
}

.legal-hero {
  padding: 28px;
}

.legal-card {
  margin-top: 18px;
  padding: 28px;
}

.legal-brand {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  color: var(--brand);
  background: rgba(91, 214, 196, 0.10);
  border: 1px solid rgba(91, 214, 196, 0.18);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.legal-hero h1 {
  margin: 16px 0 12px;
  font-size: clamp(30px, 5vw, 42px);
  line-height: 1.16;
}

.legal-summary {
  margin: 0;
  max-width: 760px;
  color: var(--muted);
  font-size: 16px;
}

.legal-meta-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 22px;
}

.legal-meta-item {
  padding: 14px 16px;
  border-radius: 18px;
  background: var(--bg-soft);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.legal-meta-label {
  display: block;
  color: var(--subtle);
  font-size: 12px;
}

.legal-meta-value {
  display: block;
  margin-top: 6px;
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.6;
}

.legal-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.legal-chip {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--muted);
  font-size: 13px;
}

.legal-chip:hover {
  color: var(--text);
  border-color: rgba(91, 214, 196, 0.22);
}

.legal-notice {
  margin-bottom: 24px;
  padding: 18px 20px;
  border-radius: 18px;
  border: 1px solid var(--line-strong);
  background: rgba(91, 214, 196, 0.08);
}

.legal-notice p {
  margin: 8px 0;
}

.legal-card h2 {
  margin: 26px 0 10px;
  font-size: 20px;
  color: var(--brand);
}

.legal-card p {
  margin: 10px 0;
  color: var(--muted);
}

.legal-card ul {
  margin: 10px 0 0 20px;
  padding: 0;
  color: var(--muted);
}

.legal-card li {
  margin: 8px 0;
}

.legal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.legal-button,
.legal-button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
}

.legal-button {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-strong) 100%);
  color: #06111d;
}

.legal-button-secondary {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.10);
  color: var(--text);
}

.legal-footer {
  margin-top: 18px;
  padding: 24px 12px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
  color: var(--subtle);
  font-size: 13px;
  line-height: 1.9;
}

.legal-footer a {
  color: var(--muted);
}

@media (max-width: 820px) {
  .legal-meta-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .legal-shell {
    width: min(980px, calc(100% - 20px));
    padding-top: 16px;
  }

  .legal-hero,
  .legal-card {
    padding: 20px;
    border-radius: 20px;
  }

  .legal-meta-grid {
    grid-template-columns: 1fr;
  }

  .legal-summary {
    font-size: 15px;
  }
}