hi...I am arriving in Shenzhen airport on the way to beijing at 11.05pm on tuesday of next week.next flight to Beijing is on the next day at 8.30am!planning to just stay at the airport for my next flight.could you please tell me,am i allowed to just stay inside the airport...like in front of the check-in counters?is starbucks or any restaurant there open 24hours?

Thank you