/* 关于 / 隐私政策 / 服务条款 等静态内容页 */

.page-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.85rem clamp(1rem, 4vw, 2rem);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
}

.site-logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.site-logo:hover {
  color: var(--primary);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  font-size: 0.9rem;
}

.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover {
  color: var(--primary);
}

.site-nav a[aria-current="page"] {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}

.legal-main {
  flex: 1;
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding: clamp(1.5rem, 4vw, 2.5rem) clamp(1rem, 4vw, 2rem) 3rem;
}

.legal-hero {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.legal-hero h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 4vw, 1.85rem);
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}

.legal-meta {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.legal-lead {
  margin: 1rem 0 0;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-muted);
}

.legal-toc {
  margin: 0 0 2rem;
  padding: 1rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.legal-toc h2 {
  margin: 0 0 0.65rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.legal-toc ol {
  margin: 0;
  padding-left: 1.25rem;
  font-size: 0.9rem;
  line-height: 1.7;
}

.legal-toc a {
  color: var(--primary);
  text-decoration: none;
}

.legal-toc a:hover {
  text-decoration: underline;
}

.legal-section {
  margin-bottom: 2rem;
}

.legal-section h2 {
  margin: 0 0 0.75rem;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
  padding-top: 0.5rem;
}

.legal-section h3 {
  margin: 1.25rem 0 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.legal-section p {
  margin: 0 0 0.85rem;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-muted);
}

.legal-section ul,
.legal-section ol {
  margin: 0 0 0.85rem;
  padding-left: 1.35rem;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-muted);
}

.legal-section li {
  margin-bottom: 0.35rem;
}

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

.legal-card {
  margin: 1rem 0;
  padding: 1rem 1.15rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--text-muted);
}

.legal-card--info {
  background: linear-gradient(135deg, #f8fafc 0%, #eff6ff 100%);
  border-color: #bfdbfe;
}

.legal-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  margin: 0.75rem 0 1rem;
}

.legal-table th,
.legal-table td {
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.legal-table th {
  background: var(--bg);
  color: var(--text);
  font-weight: 600;
}

.legal-table td {
  color: var(--text-muted);
}

.site-footer--full {
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}