body { font-family: 'Segoe UI', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1 { color: #e74c3c; font-size: 2.5em; text-align: center; }
        h2 { color: #2980b9; font-size: 1.8em; border-bottom: 2px solid #f39c12; padding-bottom: 5px; }
        h3 { color: #27ae60; font-size: 1.4em; }
        .logo { font-size: 2em; font-weight: bold; color: #e74c3c; text-align: center; margin: 20px 0; }
        .download-btn, .login-btn { display: inline-block; padding: 12px 25px; background: #e74c3c; color: white; text-decoration: none; border-radius: 5px; margin: 15px 0; }
        .mobile-nav { display: none; background: #333; color: white; padding: 10px; text-align: center; cursor: pointer; }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        .tag { display: inline-block; background: #f39c12; color: white; padding: 5px 10px; margin: 5px; border-radius: 3px; }
        footer { margin-top: 30px; padding: 20px; background: #333; color: white; text-align: center; }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .mobile-nav { display: block; }
        }