body { font-family: Arial, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1 { color: #0066cc; }
        h2 { color: #004d99; margin-top: 25px; }
        h3 { color: #003366; }
        .logo { font-size: 28px; font-weight: bold; color: #ff9900; text-decoration: none; }
        nav { background: #f0f0f0; padding: 10px; }
        nav a { margin: 0 15px; text-decoration: none; color: #0066cc; }
        .mobile-nav-toggle { display: none; cursor: pointer; }
        @media (max-width: 768px) {
            nav { display: none; }
            .mobile-nav-toggle { display: block; }
            .mobile-nav-active { display: block; }
        }
        .download-btn, .login-btn { display: inline-block; padding: 10px 20px; background: #ff9900; color: white; text-decoration: none; margin: 10px 0; border-radius: 5px; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        .tags { margin: 20px 0; }
        .tags a { background: #e0e0e0; padding: 5px 10px; margin: 5px; text-decoration: none; color: #333; }
        footer { margin-top: 30px; padding: 20px; background: #f0f0f0; text-align: center; }