With the new UI on alaskaair.com from the past month or so, I can no longer figure out what kind of mixed itinerary (e.g. first+partner business or economy+partner business) it is on an award ticket search like this one:

Clicking the "Partner Business" box goes to price confirmation page, which also doesn't tell you what kind of "mixed itinerary" it is:

If I click "details" on the left, it also doesn't tell you what cabin is available on the AS leg.
Am I missing something? Is there a hidden trick to know the cabin on the AS leg without going too deep into the process?