body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1 { color: #e74c3c; border-bottom: 3px solid #f39c12; padding-bottom: 10px; }
        h2 { color: #2980b9; margin-top: 30px; }
        h3 { color: #27ae60; }
        .mobile-nav { display: none; background: #f1c40f; padding: 10px; text-align: center; cursor: pointer; }
        .logo { font-size: 28px; font-weight: bold; color: #e74c3c; text-shadow: 2px 2px 4px rgba(0,0,0,0.2); }
        nav { background: #34495e; padding: 15px; margin-bottom: 30px; }
        nav a { color: white; margin-right: 20px; text-decoration: none; }
        .download-btn, .login-btn { display: inline-block; padding: 12px 25px; margin: 15px 0; background: #e74c3c; color: white; border-radius: 5px; text-decoration: none; }
        .image-container { text-align: center; margin: 25px 0; }
        img { max-width: 100%; height: auto; }
        .tag { background: #ecf0f1; padding: 5px 10px; margin: 5px; display: inline-block; border-radius: 3px; }
        footer { margin-top: 50px; padding: 20px; background: #2c3e50; color: white; }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .mobile-nav { display: block; }
            body { padding: 10px; }
        }