body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        .mobile-nav { display: none; background: #ff9900; color: white; padding: 10px; text-align: center; cursor: pointer; }
        @media (max-width: 768px) { .desktop-nav { display: none; } .mobile-nav { display: block; } }
        nav { background: #ff9900; padding: 15px; margin-bottom: 20px; }
        nav a { color: white; text-decoration: none; padding: 10px 15px; font-weight: bold; }
        h1 { color: #e74c3c; border-bottom: 3px solid #ff9900; padding-bottom: 10px; }
        h2 { color: #3498db; margin-top: 30px; }
        h3 { color: #2ecc71; }
        .download-btn, .login-btn { background: #2ecc71; color: white; padding: 12px 25px; text-decoration: none; border-radius: 5px; display: inline-block; margin: 15px 0; }
        .image-container { text-align: center; margin: 25px 0; }
        img { max-width: 100%; height: auto; }
        .tags { margin: 20px 0; }
        .tag { background: #f1f1f1; padding: 5px 10px; margin: 5px; display: inline-block; border-radius: 3px; }
        footer { margin-top: 50px; padding: 20px; background: #333; color: white; }