How to lock the gate of Taigu Hotel?

1. All hotels use key cards. After checking into the hotel room at the front desk, there will be a key card for the guests.

This key card is the key to the room. Lock the door after entering the room. After locking, people outside can't open the door handle.

There will be two locks on the hotel door, and there is a lock under the ordinary lock. Lock the second lock. After the lock is locked, outsiders can't open the door even with a room card.