body { margin: 0; font-family: "Microsoft YaHei", Arial, sans-serif; }
    :root {
        --primary: #da251c;
        --text-dark: #333;
        --text-gray: #666;
        --bg-light: #f5f5f5;
        --max-w: 1200px;
    }

    .page-banner { position: relative; width: 100%; overflow: hidden; height: 300px; }
    .page-banner img { width: 100%; height: 100%; display: block; object-fit: cover; }
    .page-banner .banner-overlay {
        position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
        text-align: center; z-index: 2;
    }
    .page-banner .banner-overlay h1 {
        color: #fff; font-size: 36px; font-weight: bold;
        text-shadow: 0 2px 8px rgba(0,0,0,0.3); margin: 0;
    }

    .page-subnav { background: #fff; border-bottom: 1px solid #eee; }
    .page-subnav .subnav-inner {
        display: flex; align-items: center; justify-content: space-between;
        max-width: var(--max-w); margin: 0 auto; padding: 0 15px;
    }
    .page-subnav .subnav-list { display: flex; list-style: none; margin: 0; padding: 0; gap: 4px; overflow-x: auto; }
    .page-subnav .subnav-list li { margin: 0; }
    .page-subnav .subnav-list a {
        display: block; padding: 14px 20px;
        font-size: 15px; color: var(--text-dark);
        text-decoration: none; transition: all 0.3s;
        border-bottom: 2px solid transparent; white-space: nowrap;
    }
    .page-subnav .subnav-list a:hover,
    .page-subnav .subnav-list .active a { color: #da251c; border-bottom-color: #da251c; }
    .page-subnav .breadcrumb {
        display: flex; align-items: center; gap: 6px;
        font-size: 13px; color: #999;
    }
    .page-subnav .breadcrumb a { color: #999; text-decoration: none; }
    .page-subnav .breadcrumb a:hover { color: var(--text-dark); }
    .page-subnav .breadcrumb .sep { color: #ccc; }

    .product-section { padding: 50px 0; background: var(--bg-light); }
    .product-section .product-inner { max-width: var(--max-w); margin: 0 auto; padding: 0 15px; }
    .product-section .product-title {
        font-size: 28px; color: var(--text-dark); font-weight: bold;
        margin: 0 0 10px; line-height: 1.4;
    }
    .product-section .product-divider {
        border: none; border-top: 3px solid var(--primary);
        width: 60px; margin: 0 0 30px;
    }
    .product-grid { display: grid; gap: 25px; }
    .product-grid.col-3 { grid-template-columns: repeat(3, 1fr); }
    .product-grid.col-4 { grid-template-columns: repeat(4, 1fr); }
    .product-card {
        background: #fff; border-radius: 10px; overflow: hidden;
        transition: all 0.3s;
    }
    .product-card:hover { transform: translateY(-5px); box-shadow: 0 8px 25px rgba(0,0,0,0.1); }
    .product-card .card-img {
        width: 100%; padding-bottom: 133%; position: relative;
        overflow: hidden; background: #fafafa;
    }
    .product-card .card-img img {
        position: absolute; top: 50%; left: 50%;
        width: 90%; height: 90%; object-fit: contain;
        transform: translate(-50%, -50%) scale(1);
        transition: transform 0.5s;
    }
    .product-card:hover .card-img img { transform: translate(-50%, -50%) scale(1.08); }
    .product-card .card-body { padding: 18px 15px; text-align: center; }
    .product-card .card-body .card-name { font-size: 16px; color: var(--text-dark); font-weight: bold; margin: 0; line-height: 1.4; }
    .product-card .card-body .card-name a { color: inherit; text-decoration: none; }
    .product-card .card-body .card-name a:hover { color: var(--primary); }

    .page-bar { text-align: center; margin-top: 40px; }
    .page-bar .pagination { display: inline-flex; gap: 4px; list-style: none; margin: 0; padding: 0; }
    .page-bar .pagination li { margin: 0; }
    .page-bar .pagination a, .page-bar .pagination span {
        display: block; padding: 8px 14px; border: 1px solid #ddd;
        border-radius: 4px; font-size: 14px; color: var(--text-dark);
        text-decoration: none; transition: all 0.3s;
    }
    .page-bar .pagination a:hover { border-color: var(--primary); color: var(--primary); }
    .page-bar .pagination .active span { background: var(--primary); color: #fff; border-color: var(--primary); }
    .page-bar .pagination .disabled span { color: #ccc; cursor: default; }

    @media screen and (max-width: 768px) {
        .page-banner { height: 200px; }
        .page-banner .banner-overlay h1 { font-size: 24px; }
        .page-subnav .subnav-inner { flex-direction: column; align-items: stretch; }
        .page-subnav .subnav-list { overflow-x: auto; gap: 0; }
        .page-subnav .subnav-list a { padding: 12px 15px; font-size: 14px; }
        .page-subnav .breadcrumb { display: none; }
        .product-grid.col-3, .product-grid.col-4 { grid-template-columns: repeat(2, 1fr); }
    }