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: 28px; font-weight: 900; color: #2a5caa; text-transform: uppercase; margin: 20px 0; }
        nav { background: #f8f9fa; padding: 15px; border-radius: 8px; margin-bottom: 30px; }
        nav a { margin: 0 15px; text-decoration: none; color: #2a5caa; font-weight: 600; }
        .mobile-menu { display: none; background: #2a5caa; color: white; padding: 10px; border-radius: 5px; cursor: pointer; }
        h1 { color: #2a5caa; font-size: 2.2em; margin: 40px 0 20px; }
        h2 { color: #3a7bd5; font-size: 1.8em; margin: 30px 0 15px; }
        h3 { color: #4a8fd5; font-size: 1.5em; margin: 25px 0 10px; }
        .download-btn { background: #4CAF50; color: white; padding: 12px 25px; border-radius: 6px; text-decoration: none; font-weight: bold; display: inline-block; margin: 20px 0; }
        .login-btn { background: #2196F3; color: white; padding: 12px 25px; border-radius: 6px; text-decoration: none; font-weight: bold; display: inline-block; margin: 20px 10px; }
        img { max-width: 100%; height: auto; border-radius: 8px; margin: 20px 0; }
        .tag { background: #e0e0e0; padding: 5px 10px; border-radius: 15px; margin: 5px; display: inline-block; }
        footer { margin-top: 50px; padding: 30px 0; border-top: 2px solid #eee; }
        @media (max-width: 768px) {
            nav { display: none; }
            .mobile-menu { display: block; }
            .nav-active { display: block; }
            body { padding: 10px; }
        }