body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        header { background-color: #FF4500; color: white; padding: 15px; display: flex; justify-content: space-between; align-items: center; border-radius: 8px; }
        .logo { font-size: 24px; font-weight: bold; text-shadow: 2px 2px 4px rgba(0,0,0,0.3); }
        nav ul { display: flex; list-style: none; gap: 20px; }
        nav a { color: white; text-decoration: none; }
        .mobile-menu { display: none; background: #333; color: white; padding: 8px 12px; border-radius: 4px; }
        h1 { color: #FF4500; border-bottom: 2px solid #FFD700; padding-bottom: 10px; }
        h2 { color: #2E8B57; margin-top: 30px; }
        h3 { color: #4169E1; }
        .btn { display: inline-block; background: #FF4500; color: white; padding: 10px 20px; margin: 10px 0; border-radius: 5px; text-decoration: none; font-weight: bold; }
        .download-section { background: #F8F8F8; padding: 20px; border-radius: 8px; margin: 20px 0; }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        footer { background: #333; color: white; padding: 20px; text-align: center; margin-top: 30px; }
        @media (max-width: 768px) {
            nav { display: none; }
            .mobile-menu { display: block; }
            .show-nav nav { display: block; position: absolute; top: 80px; left: 0; right: 0; background: #FF4500; padding: 15px; }
            nav ul { flex-direction: column; }
        }