We have ~30 hrs layover and no visa

We are arriving to Fuzhou Changle International Airport at 17:55 from NRT and flying 00:10 day+2 to CDG with US passports. This is about 30 hours layover. This is due to a typhoon in Japan causing flight disruptions. It's not clear whether we will be able to stay at the airport or get a nearby hotel. Can you please advise?