.container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 1400px;
            margin: 0 auto;
        }

        @media (max-width: 1200px) {
            .container {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 900px) {
            .container {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 600px) {
            .container {
                grid-template-columns: 1fr;
            }
        }

        .product-card {
            list-style: none;
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.08);
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        }

        .product-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0,0,0,0.15);
        }

        .card-header img {
            width: 1200%;
            height: 25px;
            display: block;
        }

        .card-content {
            margin: 0 auto;
            padding: 0;
            border-left: 1px solid #dfdfdf;
            border-right: 1px solid #dfdfdf;
            background: white;
        }

        .product-info {
            margin: 0;
            padding: 15px 0 0 20px;
        }

        .product-image {
            width: 212px;
            height: 158px;
            margin: 10px 0;
            border-radius: 8px;
            object-fit: cover;
        }

        .product-title {
            margin: 8px 0;
            color: #555;
            font-size: 15px;
            font-weight: 500;
        }

        .product-price {
            margin: 0 0 0 8px;
            color: #cc0000;
            font-size: 14px;
            font-weight: bold;
            display: flex;
            align-items: center;
        }

        .price-label {
            color: #000099;
        }

        .price-value {
            color: #e53935;
            font-weight: 700;
            margin: 0 5px;
        }

        .hot-badge {
            background: linear-gradient(45deg, #ff416c, #ff4b2b);
            color: white;
            padding: 3px 8px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: bold;
            margin-left: 8px;
            display: inline-flex;
            align-items: center;
        }

        .hot-badge i {
            margin-right: 4px;
        }

        .action-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
            padding: 20px;
        }

        .btn {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 12px 5px;
            background: #f8f9fa;
            border: 1px solid #e9ecef;
            border-radius: 8px;
            color: #495057;
            text-decoration: none;
            font-size: 13px;
            font-weight: 500;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .btn:hover {
            background: linear-gradient(45deg, #4facfe 0%, #00f2fe 100%);
            color: white;
            border-color: transparent;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }

        .btn i {
            font-size: 18px;
            margin-bottom: 6px;
        }

        .btn-primary {
            background: linear-gradient(45deg, #4facfe 0%, #00f2fe 100%);
            color: white;
            border: none;
        }

        .btn-success {
            background: linear-gradient(45deg, #0ba360 0%, #3cba92 100%);
            color: white;
            border: none;
        }

        .btn-warning {
            background: linear-gradient(45deg, #f6d365 0%, #fda085 100%);
            color: white;
            border: none;
        }

        .btn-danger {
            background: linear-gradient(45deg, #ff416c 0%, #ff4b2b 100%);
            color: white;
            border: none;
        }

        .card-footer img {
            width: 100%;
            height: 25px;
            display: block;
        }

        .section-title {
            grid-column: 1 / -1;
            text-align: center;
            margin: 20px 0 30px;
            color: #333;
        }

        .section-title h1 {
            font-size: 28px;
            margin-bottom: 10px;
            background: linear-gradient(45deg, #4facfe, #00f2fe);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            font-weight: 700;
        }

        .section-title p {
            color: #666;
            font-size: 16px;
            max-width: 600px;
            margin: 0 auto;
        }