body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; margin: 0; padding: 0; background-color: #f9f0e6; }
        .container { max-width: 1200px; margin: 0 auto; padding: 20px; }
        header { background-color: #ff6b35; color: white; padding: 15px 0; text-align: center; position: relative; }
        header h1 { margin: 0; font-size: 2.2em; }
        .nav { background-color: #e64c00; overflow: hidden; }
        .nav a { color: white; padding: 14px 16px; text-decoration: none; float: left; display: block; }
        .nav .icon { display: none; }
        .mobile-toggle { display: none; background: none; border: none; color: white; font-size: 24px; cursor: pointer; position: absolute; right: 20px; top: 15px; }
        .content { background-color: white; padding: 20px; border-radius: 8px; box-shadow: 0 0 10px rgba(0,0,0,0.1); margin-top: 20px; }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        .download-btn, .login-btn { display: inline-block; background-color: #4CAF50; color: white; padding: 12px 24px; text-align: center; margin: 10px 0; border-radius: 4px; text-decoration: none; font-weight: bold; }
        .login-btn { background-color: #2196F3; }
        footer { text-align: center; padding: 20px; background-color: #333; color: white; margin-top: 20px; }
        @media screen and (max-width: 768px) {
            .nav a:not(:first-child) {display: none;}
            .nav a.icon { float: right; display: block; }
            .nav.responsive {position: relative;}
            .nav.responsive .icon { position: absolute; right: 0; top: 0; }
            .nav.responsive a { float: none; display: block; text-align: left; }
            .mobile-toggle { display: block; }
        }