/* ========================================
   SEO 内容营销区域
   ======================================== */
.seo-content-section {
  padding: 40px 0;
  background: var(--bg);
  border-top: 1px solid var(--overlay-sm);
}
.seo-section-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 20px;
  text-align: center;
}
.seo-article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.seo-article-card {
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--overlay-sm);
  border-radius: 12px;
  transition: all 0.25s;
  cursor: default;
}
.seo-article-card:hover {
  border-color: var(--accent-mid);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}
.article-category {
  display: inline-block;
  font-size: 11px;
  padding: 2px 10px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(168,85,247,0.15), rgba(99,102,241,0.1));
  color: #a78bfa;
  font-weight: 500;
  margin-bottom: 8px;
}
.article-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.4;
}
.article-excerpt {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .seo-article-grid {
    grid-template-columns: 1fr;
  }
}