.layout-with-sidebar {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
}
@media (max-width: 768px) {
  .layout-with-sidebar {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .sidebar {
    order: 1;
  }
  .main-content {
    order: 2;
  }
  .article-list li {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
  .article-list li a {
    font-size: 14px;
  }
  .article-detail-title {
    font-size: 18px;
  }
  .article-meta {
    font-size: 12px;
  }
}
@media (max-width: 480px) {
  .side-nav a {
    padding: 12px 14px;
    font-size: 13px;
  }
  .article-detail-title {
    font-size: 16px;
  }
}
.sidebar {
  flex-shrink: 0;
}
.side-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.side-nav a {
  display: block;
  padding: 12px 16px;
  background: #f5f5f5;
  color: #333;
  font-size: 14px;
  border-left: 3px solid transparent;
}
.side-nav a:hover,
.side-nav a.active {
  background: #fff;
  border-left-color: #c81623;
  color: #c81623;
}
.article-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.article-list li {
  padding: 16px 0;
  border-bottom: 1px dashed #eee;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.article-list li a {
  flex: 1;
  font-size: 15px;
}
.article-list li a:hover {
  color: #c81623;
}
.article-list .cate {
  font-size: 12px;
  color: #999;
  flex-shrink: 0;
}
.pagination {
  margin-top: 24px;
  text-align: center;
}

.article-detail-title {
  font-size: 22px;
  margin: 0 0 16px;
  color: #333;
  line-height: 1.4;
}
.article-meta {
  font-size: 13px;
  color: #999;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid #eee;
}
.article-detail-body {
  margin: 0;
}