Could use some help with regex (in funnel plugin), anyone?

The url’s are

https://www.domain.com/category/item
(always https, always www, never trailing slash

Basically I would like the goal conversion to be any page visit on https://www.domain.com/categorie/item (not a specific category and item but any!)

One of the steps in funnel would be

https://www.domain.com/category/ (any category)

Because there are many categories and items involved I can only do the with regex, shouldn’t be too difficult but I lack regex knowledge altogether:)

A bit of help would be much appreciated.

To follow up, this should do the trick:

^https://domain\.com/[a-z]+$
^https://domain\.com/.+/.+$

However, one thing: if I test both patterns as goals they both work fine, so both seem valid.

But if I use this as a goal
^https://domain\.com/.+/.+$

And this as the required step in the funnel
^https://domain\.com/[a-z]+$

The latter does not work (breaks the funnel). Which is weird because the pattern worked as expected when I use it as a goal

A screenshot to illustrate? Anyone have a suggestion? Would be very welcome, driving me nuts.