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: bold; color: #FF4500; text-align: center; margin: 20px 0; }
        nav { background: #333; padding: 10px; text-align: center; }
        nav a { color: white; margin: 0 15px; text-decoration: none; }
        .mobile-menu { display: none; }
        h1 { color: #FF4500; border-bottom: 2px solid #FF4500; padding-bottom: 10px; }
        h2 { color: #006400; margin-top: 30px; }
        h3 { color: #8B4513; }
        .download-btn { background: #008000; color: white; padding: 10px 20px; border-radius: 5px; text-decoration: none; display: inline-block; margin: 10px 0; }
        .login-btn { background: #1E90FF; color: white; padding: 10px 20px; border-radius: 5px; text-decoration: none; display: inline-block; margin: 10px 0; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        .tags { margin: 20px 0; }
        .tag { background: #f0f0f0; padding: 5px 10px; border-radius: 3px; margin-right: 5px; }
        footer { background: #333; color: white; text-align: center; padding: 20px; margin-top: 30px; }
        @media (max-width: 768px) {
            .mobile-menu { display: block; text-align: center; margin: 10px 0; }
            nav { display: none; }
            nav.active { display: block; }
            .btn-toggle { background: #FF4500; color: white; padding: 10px; border: none; cursor: pointer; }
        }