Hello,
Unfortunately and for an unkonown reason we are unable to reach your website with our Safari Browser (Windows 10)... And we can't figure it why...
Now, several point to check, with your navigator inspector tool check that you have the "safari_hikashop.css".
Point on of your element in your listing, and right-click => Inspect (or Inspector tool).
Here in my screenshot example and in red border, you can see that the "
frontend_custom.css", process like this to check that the "
safari_hikashop.css" is used.
Process a test with a default template (like ProtoStar) to check that your issue don't come from your template (and only with Safari).
Awaiting your elements to progress on your subject.
Regards