body { font-family: 'Segoe UI', Arial, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1 { color: #ff6b35; font-size: 2.2em; }
        h2 { color: #4a90e2; margin-top: 30px; }
        h3 { color: #50c878; }
        .nav { background: #ffe066; padding: 10px; display: flex; justify-content: space-between; align-items: center; }
        .nav-mobile { display: none; }
        .logo { font-weight: bold; font-size: 1.5em; }
        .btn { background: #ff6b35; color: white; padding: 8px 15px; border-radius: 5px; text-decoration: none; }
        .btn-download { display: inline-block; margin: 20px 0; }
        .btn-login { display: inline-block; margin: 10px 0; }
        .section { margin-bottom: 30px; }
        .image-container { margin: 20px 0; text-align: center; }
        img { max-width: 100%; height: auto; }
        .tags { margin: 20px 0; }
        .tag { background: #e0e0e0; padding: 5px 10px; margin: 5px; display: inline-block; }
        .footer { background: #333; color: white; padding: 20px; text-align: center; }
        @media (max-width: 768px) {
            .nav { flex-direction: column; }
            .nav-desktop { display: none; }
            .nav-mobile { display: block; }
        }