Does anyone know of any arrivals lounge options for Beijing T3?

I am doing a Finnair marathon tier point run and will be arriving there at 06:55 on a Sunday morning. I'm flying their business product but was wondering as a GCH if there are any options for shower etc when I arrive - I don't think there is a Finnair arrivals lounge. If there are BA facilities am I entitled to use them (I suspect not, but someone might confirm otherwise).

If there are no airline facilities, can anyone recommend somewhere in the airport to shower / have breakfast before heading out into the mayhem.

Thanks