/* 平台营销页 — 多列 SaaS 页脚 */
.pf-footer {
  --pf-bg: #0d0d0d;
  --pf-gold: #c9a227;
  --pf-gold-light: #f5e6a3;
  --pf-text: #ffffff;
  --pf-muted: #aaaaaa;
  --pf-dim: #666670;
  background: var(--pf-bg);
  border-top: 1px solid rgba(201, 162, 39, 0.12);
  padding: 80px 24px 0;
  color: var(--pf-text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

.pf-footer-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.pf-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px 32px;
  padding-bottom: 56px;
}

.pf-col-brand {
  padding-right: 8px;
}

.pf-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none !important;
  color: var(--pf-text) !important;
  margin-bottom: 16px;
}

.pf-brand:hover {
  color: var(--pf-text) !important;
}

.pf-brand .brand-logo--footer {
  width: 40px;
  height: 40px;
  padding: 3px;
  border-radius: 10px;
}

.pf-brand-title {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.2px;
}

.pf-brand-desc {
  font-size: 13px;
  color: var(--pf-dim);
  line-height: 1.7;
  margin: 0 0 20px;
  max-width: 240px;
}

.pf-social {
  display: flex;
  gap: 10px;
}

.pf-social-btn {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--pf-muted) !important;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.pf-social-btn:hover {
  color: var(--pf-gold-light) !important;
  border-color: rgba(201, 162, 39, 0.35);
  background: rgba(201, 162, 39, 0.1);
}

.pf-heading {
  font-size: 15px;
  font-weight: 650;
  color: var(--pf-text);
  margin: 0 0 18px;
  letter-spacing: 0.4px;
}

.pf-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.pf-links li {
  margin: 0 0 12px;
}

.pf-links a {
  color: var(--pf-muted) !important;
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none !important;
  transition: color 0.2s;
}

.pf-links a:hover {
  color: var(--pf-gold-light) !important;
}

.pf-badges {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.pf-badges-label {
  font-size: 12px;
  color: var(--pf-dim);
  margin: 0 0 12px;
  letter-spacing: 0.5px;
}

.pf-badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pf-badge {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  min-width: 56px;
  color: var(--pf-gold);
}

.pf-badge-txt {
  font-size: 10px;
  color: var(--pf-dim);
  white-space: nowrap;
}

.pf-friends {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px 14px;
  padding: 18px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.pf-friends-label {
  font-size: 12px;
  color: var(--pf-dim);
  letter-spacing: 0.4px;
  flex-shrink: 0;
}

.pf-friends-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px 10px;
}

.pf-friends-list a {
  color: var(--pf-muted) !important;
  font-size: 13px;
  text-decoration: none !important;
  transition: color 0.2s;
}

.pf-friends-list a:hover {
  color: var(--pf-gold-light) !important;
}

.pf-friends-sep {
  color: #44444e;
  font-size: 12px;
  user-select: none;
}

.pf-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 22px 0 28px;
  text-align: center;
}

.pf-copy {
  margin: 0;
  font-size: 12px;
  color: var(--pf-dim);
  line-height: 1.8;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 4px 6px;
}

.pf-sep {
  opacity: 0.5;
  margin: 0 2px;
}

.pf-icp {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--pf-dim) !important;
  text-decoration: none !important;
}

.pf-icp:hover {
  color: var(--pf-gold) !important;
}

.pf-icp-icon {
  flex-shrink: 0;
  opacity: 0.75;
}

.pf-note {
  margin: 6px 0 0;
  font-size: 11px;
  color: #55555f;
}

@media (max-width: 960px) {
  .pf-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 36px 28px;
  }
}

@media (max-width: 560px) {
  .pf-footer {
    padding: 56px 20px 0;
  }
  .pf-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 40px;
  }
  .pf-brand-desc {
    max-width: none;
  }
}