body {
            font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
            background: #f8f9fa;
            padding: 30px 0;
        }
        .product-container {
            background: white;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.08);
            overflow: hidden;
            margin-bottom: 30px;
        }
        .product-header {
            background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
            color: white;
            padding: 30px;
            text-align: center;
        }
        .product-header h1 {
            margin: 0 0 10px 0;
            font-size: 32px;
            font-weight: 300;
        }
        .product-header .subtitle {
            font-size: 16px;
            opacity: 0.9;
        }
        .product-image-section {
            padding: 40px;
            background: #fff;
        }
        .product-image {
            max-width: 100%;
            height: auto;
            max-height: 350px;
            margin: 0 auto;
        }
        .price-section {
            background: #ecf0f1;
            padding: 25px 40px;
            text-align: center;
            border-top: 3px solid #3498db;
        }
        .price {
            font-size: 42px;
            font-weight: 600;
            color: #e74c3c;
            margin: 0;
        }
        .price-label {
            font-size: 14px;
            color: #7f8c8d;
            margin-top: 5px;
        }
        .specs-section {
            padding: 40px;
        }
        .section-title {
            font-size: 24px;
            font-weight: 300;
            color: #2c3e50;
            margin-bottom: 25px;
            padding-bottom: 10px;
            border-bottom: 2px solid #ecf0f1;
        }
        .spec-row {
            padding: 15px 0;
            border-bottom: 1px solid #ecf0f1;
            display: flex;
            align-items: center;
        }
        .spec-row:last-child {
            border-bottom: none;
        }
        .spec-icon {
            width: 40px;
            text-align: center;
            color: #3498db;
            font-size: 20px;
        }
        .spec-label {
            flex: 1;
            font-weight: 500;
            color: #34495e;
        }
        .spec-value {
            flex: 1;
            text-align: right;
            color: #7f8c8d;
        }
        .features-section {
            background: #f8f9fa;
            padding: 40px;
        }
        .feature-box {
            text-align: center;
            padding: 25px 15px;
            background: white;
            border-radius: 6px;
            margin-bottom: 20px;
            transition: transform 0.3s;
            box-shadow: 0 1px 3px rgba(0,0,0,0.06);
        }
        .feature-box:hover {
            transform: translateY(-5px);
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .feature-icon {
            font-size: 36px;
            color: #3498db;
            margin-bottom: 15px;
        }
        .feature-title {
            font-weight: 600;
            color: #2c3e50;
            margin-bottom: 8px;
        }
        .feature-desc {
            font-size: 13px;
            color: #7f8c8d;
            line-height: 1.6;
        }
        .btn-purchase {
            background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
            color: white;
            font-size: 18px;
            padding: 15px 40px;
            border: none;
            border-radius: 50px;
            font-weight: 500;
            transition: all 0.3s;
        }
        .btn-purchase:hover {
            background: linear-gradient(135deg, #2980b9 0%, #21618c 100%);
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
        }
        .warranty-badge {
            display: inline-block;
            background: #4f52c0;
            color: white;
            padding: 8px 20px;
            border-radius: 20px;
            font-size: 13px;
            margin-top: 10px;
        }
        .stock-status {
            color: #27ae60;
            font-weight: 600;
            margin-top: 10px;
        }