different sub category style

Hi,

You can use the class hikashop_product_listing_XX in your CSS where XX is to be replaced by the id of the current main category of the listing.

Hi,

I'm sorry but I don't see the problem with that.

For the image-title of the main categories you could do like that:
.hikashop_product_listing_XX .image-title, .hikashop_product_listing_YY .image-title{
// css for categories XX and YY
color: blue;
}

And for categories other than XX and YY (so the sub categories), you could do like that:
.image-title{
//css for other categories than XX and YY
color: red;
}
.hikashop_product_listing_XX .image-title, .hikashop_product_listing_YY .image-title{
// css for categories XX and YY
color: blue;
}