body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1 { color: #FF5722; font-size: 2.5em; margin-bottom: 0.5em; }
        h2 { color: #4CAF50; font-size: 1.8em; margin-top: 1.5em; }
        h3 { color: #2196F3; font-size: 1.4em; margin-top: 1.2em; }
        .download-btn, .login-btn { display: inline-block; background: #FF5722; color: white; padding: 12px 25px; margin: 15px 0; border-radius: 5px; text-decoration: none; font-weight: bold; }
        .nav-toggle { display: none; background: #333; color: white; padding: 10px; position: fixed; bottom: 20px; right: 20px; border-radius: 50%; z-index: 100; }
        @media (max-width: 768px) {
            .nav-links { display: none; }
            .nav-toggle.active ~ .nav-links { display: block; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.9); z-index: 99; padding: 40px; box-sizing: border-box; }
            .nav-toggle { display: block; }
        }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        .tag { background: #f0f0f0; padding: 5px 10px; margin: 5px; border-radius: 20px; display: inline-block; }