:root {
  color-scheme: dark;
  --bg: #020914;
  --panel: rgba(8, 25, 43, 0.88);
  --border: rgba(93, 169, 224, 0.22);
  --text: #eef8ff;
  --muted: #a9bbcf;
  --subtle: #7f95ac;
  --cyan: #20e4df;
  --blue: #298cff;
  --radius: 8px;
  --max-width: 980px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei",
    sans-serif;
  background: var(--bg);
  color: var(--text);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 78% 0%, rgba(18, 120, 183, 0.28), transparent 28rem),
    radial-gradient(circle at 8% 24%, rgba(21, 197, 189, 0.12), transparent 24rem),
    linear-gradient(180deg, #020914 0%, #04101c 48%, #020914 100%);
}

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

.legal-header,
.legal-main,
.legal-footer {
  width: min(100% - 48px, var(--max-width));
  margin: 0 auto;
}

.legal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  min-height: 78px;
}

body[data-lang="zh"] .lang-en,
body[data-lang="en"] .lang-zh {
  display: none !important;
}

.brand-lockup {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  min-width: 0;
}

.brand-mark {
  font-size: 42px;
  font-weight: 850;
  line-height: 1;
  color: var(--cyan);
  text-shadow: 0 0 22px rgba(32, 228, 223, 0.5);
}

.brand-lockup strong,
.brand-lockup small {
  display: block;
  line-height: 1.2;
}

.brand-lockup strong {
  font-size: 15px;
  font-weight: 680;
}

.brand-lockup small {
  margin-top: 3px;
  color: var(--muted);
}

.legal-actions {
  display: flex;
  gap: 18px;
  align-items: center;
}

.legal-header nav {
  display: flex;
  gap: 28px;
  color: #dceeff;
  font-size: 15px;
}

.legal-header nav a:hover,
.legal-footer a:hover {
  color: var(--cyan);
}

.legal-language-switch {
  display: inline-flex;
  gap: 4px;
  min-height: 38px;
  padding: 4px;
  background: rgba(8, 24, 42, 0.72);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.legal-language-switch button {
  min-width: 42px;
  min-height: 28px;
  padding: 0 9px;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-radius: 6px;
  cursor: pointer;
}

.legal-language-switch button.is-active {
  color: #02131d;
  background: var(--cyan);
}

.legal-main {
  padding: 48px 0 72px;
}

.legal-hero {
  padding: 36px 0 28px;
}

.legal-kicker {
  margin: 0 0 12px;
  color: var(--cyan);
  font-size: 14px;
  font-weight: 760;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(38px, 5vw, 60px);
  line-height: 1.08;
}

.legal-summary {
  max-width: 760px;
  margin: 22px 0 0;
  color: #c8d9eb;
  font-size: 18px;
  line-height: 1.8;
}

.legal-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 28px 0 0;
  list-style: none;
}

.legal-meta li {
  padding: 8px 12px;
  color: var(--muted);
  background: rgba(8, 24, 42, 0.78);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.legal-content {
  display: grid;
  gap: 18px;
  margin-top: 24px;
}

.legal-section {
  padding: 28px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
}

.legal-section h2 {
  margin: 0 0 14px;
  font-size: 24px;
  line-height: 1.3;
}

.legal-section p,
.legal-section li {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}

.legal-section p {
  margin: 0;
}

.legal-section p + p {
  margin-top: 12px;
}

.legal-section ul {
  padding-left: 1.2em;
  margin: 0;
}

.legal-section li + li {
  margin-top: 8px;
}

.legal-section strong {
  color: var(--text);
}

.legal-section a {
  color: var(--cyan);
}

.legal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 34px 0 42px;
  color: var(--muted);
  border-top: 1px solid rgba(116, 162, 203, 0.18);
}

.legal-footer nav {
  display: flex;
  gap: 18px;
}

@media (max-width: 720px) {
  .legal-header,
  .legal-main,
  .legal-footer {
    width: min(100% - 32px, var(--max-width));
  }

  .legal-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
    padding: 18px 0;
  }

  .legal-header nav {
    flex-wrap: wrap;
    gap: 14px;
  }

  .legal-actions {
    flex-wrap: wrap;
    width: 100%;
  }

  .brand-mark {
    font-size: 36px;
  }

  .brand-lockup strong {
    max-width: 190px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .legal-main {
    padding-top: 18px;
  }

  .legal-section {
    padding: 22px;
  }

  .legal-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}