.blog-detail-section {
  padding: 140px 0 80px;
}

.blog-header {
  margin-bottom: 30px;
}

.blog-title {
  font-family: var(--font-h);
  font-size: 2.8rem;
  font-weight: 600;
  line-height: 1.2;
}

.blog-toc {
  background: #fff;
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  margin-bottom: 40px;
  box-shadow: var(--shadow);
}

.blog-toc h3 {
  font-size: 1.1rem;
  margin-bottom: 12px;
}

.blog-toc ul li {
  font-size: .85rem;
  color: var(--text-3);
  margin-bottom: 6px;
}

.blog-content {
  background: #fff;
  padding: 40px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.blog-content h2 {
  font-size: 1.6rem;
  margin: 30px 0 12px;
}

.blog-content h3 {
  font-size: 1.1rem;
  margin: 24px 0 10px;
  color: var(--indigo-deep);
}

.blog-content p {
  font-size: .9rem;
  color: var(--text-3);
  line-height: 1.8;
  margin-bottom: 14px;
}

.blog-list {
  padding-left: 18px;
  margin-bottom: 16px;
}

.blog-list li {
  font-size: .88rem;
  margin-bottom: 6px;
  color: var(--text-2);
}

.blog-link {
  color: var(--indigo-deep);
  font-weight: 600;
  margin: 10px 0;
}