body {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 0;
            background-color: #f4f4f4;
        }
        header {
            background-color: #004d99;
            color: white;
            padding: 20px 0;
            text-align: center;
        }
        header h1 {
            margin: 0;
            font-size: 2.5em;
        }
        header p {
            margin: 5px 0 0;
            font-size: 1.2em;
        }
        .container {
            max-width: 1200px;
            margin: 20px auto;
            padding: 0 15px;
        }
        .products {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
        }
        .product {
            background: white;
            border: 1px solid #ddd;
            border-radius: 5px;
            overflow: hidden;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        }
        .product img {
            width: 100%;
            height: auto;
        }
        .product h3 {
            margin: 10px;
            font-size: 1.2em;
            color: #333;
        }
        footer {
            background-color: #004d99;
            color: white;
            text-align: center;
            padding: 10px 0;
            margin-top: 20px;
        }
        footer p {
            margin: 0;
            font-size: 0.9em;
        }