body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        .logo { font-size: 2.5em; font-weight: bold; color: #0077b6; text-shadow: 2px 2px 4px rgba(0,0,0,0.1); }
        nav { background: #f8f9fa; padding: 15px; margin-bottom: 30px; border-radius: 8px; }
        nav a { margin: 0 15px; text-decoration: none; color: #0077b6; font-weight: 500; }
        .mobile-menu { display: none; }
        h1 { color: #023e8a; border-bottom: 3px solid #0077b6; padding-bottom: 10px; }
        h2 { color: #0077b6; margin-top: 30px; }
        h3 { color: #0096c7; }
        .highlight { background: #e7f6ff; padding: 15px; border-radius: 8px; margin: 20px 0; }
        .download-btn, .login-btn { display: inline-block; background: #0077b6; color: white; padding: 12px 25px; margin: 10px 0; border-radius: 8px; text-decoration: none; font-weight: bold; }
        .image-container { text-align: center; margin: 30px 0; }
        img { max-width: 100%; height: auto; border-radius: 8px; }
        .tag { background: #e7f6ff; padding: 5px 10px; border-radius: 20px; margin: 5px; display: inline-block; }
        footer { margin-top: 50px; padding: 20px; background: #f8f9fa; border-radius: 8px; }
        @media (max-width: 768px) {
            .desktop-menu { display: none; }
            .mobile-menu { display: block; }
            .logo { font-size: 1.8em; }
        }