body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        .logo { font-size: 28px; font-weight: bold; color: #0066cc; margin-bottom: 20px; }
        nav { background: #f0f0f0; padding: 10px; margin-bottom: 20px; display: flex; justify-content: space-between; }
        .mobile-nav { display: none; }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .mobile-nav { display: block; }
            .nav-links { display: none; flex-direction: column; }
            .nav-links.active { display: flex; }
        }
        h1 { color: #0066cc; border-bottom: 2px solid #0066cc; padding-bottom: 10px; }
        h2 { color: #0099ff; margin-top: 30px; }
        h3 { color: #33ccff; }
        .download-btn, .login-btn { background: #00cc66; color: white; padding: 10px 20px; border-radius: 5px; text-decoration: none; margin: 10px 0; display: inline-block; }
        .image-container { margin: 20px 0; text-align: center; }
        img { max-width: 100%; height: auto; }
        footer { margin-top: 50px; padding: 20px; background: #f0f0f0; }
        .tags { margin-top: 20px; }
        .tag { background: #e0e0e0; padding: 5px 10px; margin: 5px; display: inline-block; border-radius: 3px; }