There seems to be an anchor：#respond，，，But after the anchor point is triggered, the anchor element moves its position，，Cause scroll position error，，This error can also be seen in your theme presentati

.woocommerce #respond input#submit,

You have added such code in child theme style: .woocommerce a.button, .woocommerce button.button, .woocommerce input.button, .woocommerce #respond input#submit, .woocommerce #content input.button {