 <style>
        body {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 20px;
            background-color: #f4f4f4;
            line-height: 1.6;
        }

        .product-container {
            max-width: 800px;
            margin: 0 auto;
            background-color: #fff;
            padding: 20px;
            border: 2px solid #4a90e2;
            border-radius: 15px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
        }

        .product-container:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
            border-color: #2e6da4;
        }

        .product-title {
            font-size: 2em;
            color: #4a90e2;
            text-align: center;
            margin-bottom: 20px;
            transition: color 0.3s ease;
        }

        .product-container:hover .product-title {
            color: #2e6da4;
        }

        .product-content {
            font-size: 1.1em;
            color: #333;
            margin-bottom: 15px;
        }

        .product-content strong {
            color: #1a3c6e;
            transition: color 0.3s ease;
        }

        .product-container:hover .product-content strong {
            color: #0d2a4a;
        }

        .feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .feature-item {
            padding: 10px 15px;
            margin-bottom: 10px;
            background-color: #f9f9f9;
            border-left: 4px solid #4a90e2;
            border-radius: 5px;
            transition: all 0.3s ease;
        }

        .feature-item:hover {
            background-color: #e6f3ff;
            border-left-color: #2e6da4;
            transform: translateX(5px);
        }

        @media (max-width: 768px) {
            .product-container {
                padding: 15px;
            }
            .product-title {
                font-size: 1.5em;
            }
            .product-content {
                font-size: 1em;
            }
        }

        @media (max-width: 480px) {
            .product-container {
                padding: 10px;
            }
            .product-title {
                font-size: 1.2em;
            }
            .product-content {
                font-size: 0.9em;
            }
            .feature-item {
                padding: 8px 10px;
            }
        }
    </style>