body { font-family: 'Arial', 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; }
            .nav-toggle { background: #ff6b35; color: white; padding: 10px; cursor: pointer; }
        }
        h1 { color: #ff6b35; border-bottom: 3px solid #ff9e7d; }
        h2 { color: #ff8c42; margin-top: 30px; }
        h3 { color: #ffac5e; }
        .download-btn { background: #4CAF50; color: white; padding: 12px 25px; margin: 15px 0; display: inline-block; text-decoration: none; border-radius: 5px; }
        .login-btn { background: #2196F3; color: white; padding: 12px 25px; margin: 15px 0; display: inline-block; text-decoration: none; border-radius: 5px; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        .tags { margin: 20px 0; }
        .tag { background: #f1f1f1; padding: 5px 10px; margin: 5px; display: inline-block; border-radius: 3px; }
        .footer { margin-top: 40px; padding-top: 20px; border-top: 1px solid #eee; }