доделал

product.html

@@ -1056,6 +1056,7 @@
     <script src="https://cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.js"></script>
 
     <script src="assets/js/gp-main.js"></script>
+    <script src="assets/js/gp-product.js"></script>
 </body>
 
 </html>