body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        .mobile-nav { display: none; }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .mobile-nav { display: block; }
            .toggle-btn { background: #ff9900; color: white; padding: 10px; border: none; cursor: pointer; }
        }
        h1 { color: #ff6600; border-bottom: 3px solid #ff9900; padding-bottom: 10px; }
        h2 { color: #3399ff; margin-top: 30px; }
        h3 { color: #66cc66; }
        .logo { font-size: 28px; font-weight: bold; color: #ff6600; text-decoration: none; }
        nav a { margin: 0 10px; text-decoration: none; color: #3399ff; }
        .download-btn { background: #4CAF50; color: white; padding: 12px 25px; border-radius: 5px; margin: 20px 0; display: inline-block; }
        .login-btn { background: #2196F3; color: white; padding: 12px 25px; border-radius: 5px; margin: 20px 10px; display: inline-block; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        .game-types { margin: 30px 0; }
        .tags { margin: 20px 0; }
        .copyright { margin-top: 50px; font-size: 12px; color: #999; }