body { font-family: 'Arial', 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: #FF9900; text-shadow: 2px 2px 4px rgba(0,0,0,0.2); }
        nav { background: #1a3e72; padding: 15px; }
        nav a { color: white; margin: 0 10px; text-decoration: none; }
        .mobile-menu { display: none; }
        h1 { color: #1a3e72; margin-top: 30px; }
        h2 { color: #FF9900; border-bottom: 2px solid #FF9900; padding-bottom: 5px; }
        h3 { color: #333; }
        .btn { display: inline-block; background: #FF9900; color: white; padding: 10px 20px; margin: 10px 0; border-radius: 5px; text-decoration: none; }
        .download-section { background: #f0f8ff; padding: 20px; margin: 20px 0; border-radius: 8px; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        @media (max-width: 768px) {
            .desktop-menu { display: none; }
            .mobile-menu { display: block; }
            .logo { font-size: 2em; }
        }