body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        .mobile-nav { display: none; background: #0066cc; color: white; padding: 10px; text-align: center; cursor: pointer; }
        nav { background: #0066cc; padding: 15px; }
        nav ul { list-style: none; padding: 0; margin: 0; display: flex; justify-content: space-around; }
        nav li { color: white; }
        nav a { color: white; text-decoration: none; }
        h1 { color: #004d99; border-bottom: 3px solid #0066cc; padding-bottom: 10px; }
        h2 { color: #0066cc; margin-top: 30px; }
        h3 { color: #0077b3; }
        .download-btn { display: inline-block; background: #00cc66; color: white; padding: 12px 25px; text-decoration: none; margin: 15px 0; border-radius: 5px; font-weight: bold; }
        .login-btn { display: inline-block; background: #ff6600; color: white; padding: 12px 25px; text-decoration: none; margin: 15px 0; border-radius: 5px; font-weight: bold; }
        .image-container { text-align: center; margin: 25px 0; }
        .image-container img { max-width: 100%; height: auto; border: 2px solid #0066cc; }
        table { width: 100%; border-collapse: collapse; margin: 20px 0; }
        th, td { border: 1px solid #ddd; padding: 12px; text-align: left; }
        th { background-color: #0066cc; color: white; }
        .footer { background: #333; color: white; padding: 20px; text-align: center; margin-top: 40px; }
        .footer a { color: #00ccff; }
        @media (max-width: 768px) {
            nav ul { flex-direction: column; text-align: center; }
            nav li { padding: 8px 0; }
            .mobile-nav { display: block; }
            nav { display: none; }
            .show-nav { display: block; }
        }