/* 基础设置 */
:root {
    --max-width: 1400px;
    --gap: clamp(16px, 2vw, 24px);
    --radius: 12px;
    --primary: #2b85e4;
    --text: #333;
    --text-light: #666;
    --border: #eee;
    --shadow: 0 2px 12px rgba(0,0,0,0.08);
  }
  
  /* 容器布局 */
  .product-container {
    max-width: var(--max-width);
    margin: 100px auto;
    padding: var(--gap);
  }
  
  /* 筛选头部 */
  .filter-header {
    margin-bottom: var(--gap);
  }
  
  .filter-trigger {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: #fff;
    cursor: pointer;
  }
  
  .filter-trigger img {
    width: 20px;
    height: 20px;
  }
  
  /* 筛选面板 */
  .filter-panel {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    opacity: 0;
    visibility: hidden;
    transition: 0.3s ease;
    z-index: 100;
  }
  
  .filter-panel.active {
    opacity: 1;
    visibility: visible;
  }
  
  .filter-content {
    position: absolute;
    top: 0;
    right: 0;
    margin-top: 50px;
    width: min(300px, 100%);
    height: 100%;
    background: #fff;
    padding: var(--gap);
    transform: translateX(100%);
    transition: 0.3s ease;
  }
  
  .filter-panel.active .filter-content {
    transform: translateX(0);
  }
  
  /* 筛选选项 */
  .filter-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--gap);
  }
  
  .filter-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 0;
    cursor: pointer;
  }
  
  .item-text {
    font-size: 15px;
  }
  
  /* 产品网格 */
  .product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
    gap: var(--gap);
  }
  
  /* 产品卡片 */
  .product-card {
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
  }
  
  .product-card:hover {
    transform: translateY(-5px);
  }
  
  .card-link {
    display: block;
    text-decoration: none;
    color: inherit;
  }
  
  .card-image {
    position: relative;
    padding-top: 75%;
  }
  
  .card-image img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.3s;
  }
  
  .product-card:hover .card-image img {
    transform: scale(1.05);
  }
  
  .card-content {
    padding: var(--gap);
  }
  
  .card-title {
    font-size: clamp(16px, 1.5vw, 18px);
    margin-bottom: 8px;
  }
  
  .card-desc {
    font-size: clamp(14px, 1.2vw, 15px);
    color: var(--text-light);
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  
  .card-more {
    color: var(--primary);
    font-size: 14px;
  }
  
  /* 筛选操作按钮 */
  .filter-actions {
    position: sticky;
    bottom: 0;
    display: flex;
    gap: 12px;
    padding-top: var(--gap);
    background: #fff;
  }
  
  .filter-actions button {
    flex: 1;
    padding: 12px;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
  }
  
  .btn-reset {
    background: #f5f7fa;
    color: var(--text);
  }
  
  .btn-apply {
    background: var(--primary);
    color: #fff;
  }
  
  /* 无结果提示 */
  .no-results {
    display: none;
    text-align: center;
    padding: var(--gap);
    color: var(--text-light);
  }