Reply To: Running headers based on 2 styles

It’s definitely a newer usage, and perhaps not common in many areas, but it’s grown fast. Twelve years ago, the trademark office didn’t think “furry” meant anything but “covered in fur”. Five years later, they denied “FurryCon” as being merely descriptive of a class of fan conventions.
That sounds like a good way to resolve the problem in an extensible way, as you never know what else might be added within the paragraph (it could be an issue if there’s links, with their own inherent style – you might need further overrides for the text decorations). Hope it works for you!