/**
 * Threads Sticker 官网页脚样式 (Site Footer)
 * 遵循 CodexTheme 卡片质感、高对比墨水色与清晰的法律条款导航
 */

.site-footer {
  border-top: var(--border-thick);
  background-color: var(--surface-card);
  padding: 44px 0 32px;
  margin-top: 60px;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 32px;
  margin-bottom: 28px;
}

.footer-brand {
  max-width: 340px;
}

.footer-nav {
  display: flex;
  gap: 40px;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 14px;
  color: var(--ink-primary);
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  color: var(--ink-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  transition: color 0.15s ease;
}

.footer-col a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  border-top: var(--border-thin);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--ink-tertiary);
}