/* ========================================
   潜山安南刷业有限公司官网 - 组件样式
   ======================================== */

/* ========================================
   产品卡片组件
   ======================================== */
.product-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  cursor: pointer;
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.product-card-image {
  position: relative;
  width: 100%;
  padding-top: 75%; /* 4:3 比例 */
  overflow: hidden;
  background: var(--color-bg);
}

.product-card-image img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.product-card:hover .product-card-image img {
  transform: scale(1.05);
}

.product-card-body {
  padding: var(--spacing-md);
}

.product-card-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.product-card-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ========================================
   产品Tab导航组件
   ======================================== */
.product-tabs {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
}

.product-tab {
  padding: 12px 28px;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: var(--color-white);
  border: 2px solid var(--color-border);
  border-radius: 50px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.product-tab:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.product-tab.active {
  color: var(--color-white);
  background: var(--color-primary);
  border-color: var(--color-primary);
}

/* 产品网格 */
.products-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

/* ========================================
   新闻卡片组件
   ======================================== */
.news-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.news-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.news-card-image {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 比例 */
  overflow: hidden;
}

.news-card-image img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.news-card:hover .news-card-image img {
  transform: scale(1.05);
}

.news-card-body {
  padding: var(--spacing-md);
}

.news-card-date {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xs);
}

.news-card-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card-summary {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 新闻分类筛选 */
.news-filter {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
}

.news-filter-btn {
  padding: 10px 24px;
  font-size: 15px;
  color: var(--color-text-secondary);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.news-filter-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.news-filter-btn.active {
  color: var(--color-white);
  background: var(--color-primary);
  border-color: var(--color-primary);
}

/* 新闻网格 */
.news-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

/* ========================================
   时间轴组件
   ======================================== */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-lg) 0;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 100%;
  background: var(--color-border);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  width: 50%;
  padding: var(--spacing-md) var(--spacing-lg);
}

.timeline-item:nth-child(odd) {
  left: 0;
  text-align: right;
  padding-right: var(--spacing-xl);
}

.timeline-item:nth-child(even) {
  left: 50%;
  text-align: left;
  padding-left: var(--spacing-xl);
}

.timeline-dot {
  position: absolute;
  top: var(--spacing-lg);
  width: 20px;
  height: 20px;
  background: var(--color-accent);
  border: 4px solid var(--color-white);
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
}

.timeline-item:nth-child(odd) .timeline-dot {
  right: -10px;
}

.timeline-item:nth-child(even) .timeline-dot {
  left: -10px;
}

.timeline-year {
  display: inline-block;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-white);
  background: var(--color-primary);
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: var(--spacing-xs);
}

.timeline-content {
  background: var(--color-white);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.timeline-content h4 {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.timeline-content p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ========================================
   数据统计组件
   ======================================== */
.stats-section {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  padding: var(--spacing-xxl) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

.stat-item {
  text-align: center;
  color: var(--color-white);
}

.stat-number {
  font-size: 48px;
  font-weight: 700;
  line-height: 1;
  margin-bottom: var(--spacing-xs);
}

.stat-number span {
  font-size: 24px;
}

.stat-label {
  font-size: 16px;
  opacity: 0.9;
}

/* ========================================
   联系信息卡片
   ======================================== */
.contact-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

.contact-card-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-accent);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.contact-item:last-child {
  margin-bottom: 0;
}

.contact-item-icon {
  width: 40px;
  height: 40px;
  background: var(--color-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-item-icon svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
}

.contact-item-content {
  flex: 1;
}

.contact-item-label {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 2px;
}

.contact-item-value {
  font-size: 15px;
  color: var(--color-text);
  font-weight: 500;
}

.contact-item-value a {
  color: var(--color-text);
}

.contact-item-value a:hover {
  color: var(--color-accent);
}

/* ========================================
   模态框组件
   ======================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  max-width: 600px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.9);
  transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.modal-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-primary);
}

.modal-close {
  width: 36px;
  height: 36px;
  background: var(--color-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--color-primary);
}

.modal-close svg {
  width: 20px;
  height: 20px;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.modal-close:hover svg {
  color: var(--color-white);
}

.modal-body {
  padding: var(--spacing-md);
}

.modal-image {
  width: 100%;
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
}

.modal-desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* ========================================
   分页组件
   ======================================== */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-xl);
}

.pagination-btn {
  min-width: 40px;
  height: 40px;
  padding: 0 var(--spacing-sm);
  font-size: 14px;
  color: var(--color-text);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pagination-btn:hover:not(:disabled) {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.pagination-btn.active {
  color: var(--color-white);
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.pagination-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ========================================
   标签组件
   ======================================== */
.tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 50px;
}

.tag-primary {
  color: var(--color-white);
  background: var(--color-primary);
}

.tag-secondary {
  color: var(--color-primary);
  background: rgba(26, 54, 93, 0.1);
}

.tag-accent {
  color: var(--color-white);
  background: var(--color-accent);
}

/* ========================================
   加载动画
   ======================================== */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ========================================
   空状态
   ======================================== */
.empty-state {
  text-align: center;
  padding: var(--spacing-xxl);
}

.empty-state-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-md);
  background: var(--color-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.empty-state-icon svg {
  width: 40px;
  height: 40px;
  color: var(--color-text-secondary);
}

.empty-state-title {
  font-size: 18px;
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}

.empty-state-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* ========================================
   响应式适配
   ======================================== */
@media (max-width: 1199px) {
  .products-list {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }
  
  .stat-number {
    font-size: 36px;
  }
}

@media (max-width: 767px) {
  .products-list {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
  }
  
  .product-tabs {
    gap: var(--spacing-xs);
  }
  
  .product-tab {
    padding: 8px 16px;
    font-size: 14px;
  }
  
  .news-list {
    grid-template-columns: 1fr;
  }
  
  .news-filter {
    flex-wrap: wrap;
  }
  
  .news-filter-btn {
    padding: 8px 16px;
    font-size: 14px;
  }
  
  /* 时间轴移动端 */
  .timeline::before {
    left: 20px;
  }
  
  .timeline-item {
    width: 100%;
    left: 0 !important;
    text-align: left !important;
    padding-left: 50px !important;
    padding-right: var(--spacing-md) !important;
  }
  
  .timeline-dot {
    left: 10px !important;
    right: auto !important;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }
  
  .stat-number {
    font-size: 32px;
  }
  
  .stat-number span {
    font-size: 18px;
  }
  
  .stat-label {
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  .products-list {
    grid-template-columns: 1fr;
  }
}