/* ========================================
   文章列表页样式
   ======================================== */

.article-list-section {
  padding: var(--spacing-3xl) var(--spacing-lg);
  background-color: var(--color-white);
}

.article-list-container {
  max-width: 1440px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 350px;
  gap: var(--spacing-3xl);
  align-items: start;
}

/* ========================================
   文章列表主区域
   ======================================== */
.articles-main {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
}

.article-item {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  border: 1px solid rgba(2, 59, 74, 0.1);
}

.article-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.article-item-link {
  display: grid;
  grid-template-columns: 400px 1fr;
  text-decoration: none;
  color: inherit;
}

.article-item-image {
  width: 100%;
  height: 100%;
  overflow: hidden;
  position: relative;
  background-color: #f5f5f5;
  display: flex;
  align-self: stretch;
}

.article-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
  display: block;
}

.article-item:hover .article-item-image img {
  transform: scale(1.1);
}

.article-category-badge {
  position: absolute;
  top: var(--spacing-lg);
  left: var(--spacing-lg);
  background-color: var(--color-accent);
  color: var(--color-primary);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.article-item-content {
  padding: var(--spacing-2xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  justify-content: center;
}

.article-item-meta {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.article-item-meta span {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  font-weight: var(--font-weight-medium);
}

.article-item-meta i {
  color: var(--color-secondary);
}

.article-item-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  line-height: var(--line-height-tight);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-item-excerpt {
  font-size: var(--font-size-base);
  color: var(--color-text-dark);
  line-height: var(--line-height-relaxed);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-read-more {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent);
  margin-top: var(--spacing-sm);
  transition: gap 0.3s ease;
}

.article-item:hover .article-read-more {
  gap: var(--spacing-md);
}

.article-read-more i {
  font-size: var(--font-size-sm);
  transition: transform 0.3s ease;
}

.article-item:hover .article-read-more i {
  transform: translateX(5px);
}

/* 无文章提示 */
.no-articles {
  text-align: center;
  padding: var(--spacing-3xl);
  color: var(--color-text-light);
}

.no-articles i {
  font-size: 80px;
  color: var(--color-secondary);
  opacity: 0.3;
  margin-bottom: var(--spacing-lg);
}

.no-articles p {
  font-size: var(--font-size-xl);
  margin: 0;
}

/* ========================================
   分页样式
   ======================================== */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.pagination a,
.pagination span.current,
.pagination span.dots {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 45px;
  height: 45px;
  padding: 0 var(--spacing-md);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  transition: all 0.3s ease;
  background-color: rgba(2, 59, 74, 0.05);
  color: var(--color-primary);
  border: 2px solid transparent;
}

.pagination a:hover {
  background-color: var(--color-accent);
  color: var(--color-primary);
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.pagination span.current {
  background-color: var(--color-primary);
  color: var(--color-white);
  border: 2px solid var(--color-primary);
}

.pagination span.dots {
  color: var(--color-text-light);
  background-color: transparent;
  border: none;
}

/* ========================================
   侧边栏样式
   ======================================== */
.articles-sidebar {
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
}

.sidebar-widget {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(2, 59, 74, 0.1);
}

.widget-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin: 0 0 var(--spacing-lg) 0;
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--color-accent);
}

/* 搜索框 */
.search-form {
  position: relative;
  display: flex;
}

.search-input {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-xl);
  padding-right: 60px;
  border: 2px solid rgba(2, 59, 74, 0.2);
  border-radius: var(--radius-lg);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  color: var(--color-text-dark);
  transition: all 0.3s ease;
  background-color: var(--color-white);
}

.search-input::placeholder {
  color: var(--color-text-light);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(247, 198, 0, 0.1);
}

.search-submit {
  position: absolute;
  right: 15px;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-lg);
  cursor: pointer;
  transition: all 0.3s ease;
}

.search-submit:hover {
  background-color: var(--color-accent);
  color: var(--color-primary);
  transform: translateY(-50%) scale(1.05);
}

/* 分类列表 */
.categories-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.category-item a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--color-text-dark);
  transition: all 0.3s ease;
  border-left: 3px solid transparent;
}

.category-item a:hover {
  background-color: rgba(247, 198, 0, 0.1);
  border-left-color: var(--color-accent);
  padding-left: var(--spacing-lg);
}

.category-name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
}

.category-count {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 30px;
  height: 30px;
  padding: 0 var(--spacing-sm);
  background-color: rgba(2, 59, 74, 0.1);
  color: var(--color-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-md);
}

.category-item a:hover .category-count {
  background-color: var(--color-accent);
  color: var(--color-primary);
}

/* 热门文章 */
.popular-articles {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.popular-item {
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid rgba(2, 59, 74, 0.1);
}

.popular-item:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.popular-link {
  display: flex;
  gap: var(--spacing-md);
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

.popular-link:hover {
  transform: translateX(5px);
}

.popular-image {
  flex-shrink: 0;
  width: 80px;
  height: 80px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: #f5f5f5;
}

.popular-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.popular-link:hover .popular-image img {
  transform: scale(1.1);
}

.popular-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  justify-content: center;
}

.popular-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  line-height: var(--line-height-normal);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.popular-date {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
}

.popular-date i {
  color: var(--color-secondary);
}

/* 标签云 */
.tags-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.tag-item {
  padding: var(--spacing-xs) var(--spacing-md);
  background-color: rgba(2, 59, 74, 0.05);
  color: var(--color-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all 0.3s ease;
  border: 1px solid transparent;
}

.tag-item:hover {
  background-color: var(--color-accent);
  color: var(--color-primary);
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

/* ========================================
   响应式设计
   ======================================== */

/* 平板设备 */
@media (max-width: 1024px) {
  .article-list-container {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }
  
  .articles-sidebar {
    display: none;
  }
  
  .article-item-link {
    grid-template-columns: 300px 1fr;
  }
  
  .article-item-content {
    padding: var(--spacing-xl);
  }
  
  .article-item-title {
    font-size: var(--font-size-xl);
  }
}

/* 移动设备 */
@media (max-width: 768px) {
  .article-list-section {
    padding: var(--spacing-2xl) var(--spacing-md);
  }
  
  .articles-sidebar {
    display: none;
  }
  
  .article-item-link {
    grid-template-columns: 1fr;
  }
  
  .article-item-image {
    height: 220px;
  }
  
  .article-item-content {
    padding: var(--spacing-lg);
  }
  
  .article-item-title {
    font-size: var(--font-size-lg);
  }
  
  .article-item-excerpt {
    font-size: var(--font-size-sm);
  }
  
  .sidebar-widget {
    padding: var(--spacing-lg);
  }
  
  .widget-title {
    font-size: var(--font-size-lg);
  }
  
  .pagination a,
  .pagination span {
    min-width: 40px;
    height: 40px;
    font-size: var(--font-size-sm);
  }
}