Hide 7.1 portfolio pages from search engines

Site URL: https://kcostudios.squarespace.com/

Hi– I've used a portfolio page in order to setup a typographic menu with image swap rollover on the homepage. These menu items all link out to individual pages or anchor links. I wasn't able to use the normal portfolio pages to design this content as they were restrictive on the content and some menu items share a link etc. I was able to circumvent this with code from this forum placed in the code injection:

something like this:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>

<script>

   $(document).ready(function() {

     $('.portfolio-hover-item[href="/home/interior-architecture"]').attr("href",  “/creative-services/#interior-build”);

     $('.portfolio-hover-item[href="/home/custom"]').attr("href", “/custom”);

     $('.portfolio-hover-item[href="/home/creative-direction”]’).attr("href", “/creative-services");

     $('.portfolio-hover-item[href="/home/sourcing]’).attr("href", “/sourcing”);

     $('.portfolio-hover-item[href="/home/collateral”]’).attr("href", “/creative-services/#collateral“);

     $('.portfolio-hover-item[href="/home/art-curation”]’).attr("href", “/creative-services/#custom“);

   });

</script>

The above code works to redirect the urls to the right pages and avoiding the built in portfolio pages. However I'm now concerned the blank portfolio pages that are unused will be visible on search engines based on their url name e.g. if it's interior architecture will that come up in the listing.

As this forum has made clear it's not possible to disable individual pages within a portfolio. Is there any way to hide those 'blank pages' from search?

url:  kcostudios.squarespace.com

password: demo

Thanks!