Is the entrance of Zhengzhou Huarun Arc de Triomphe open inside or outside?

The entrance door of Zhengzhou Huarun Arc de Triomphe opens inward. According to relevant building codes and design standards, residential entrance doors are usually opened from the inside, which can improve safety and anti-theft. When the inner door is opened, an anti-theft lock can be installed behind the door, so that the lock is not easy to be damaged or pried open by the outside world, which increases the safety. In addition, the inner door can also prevent the door from being blown by the wind outdoors, reducing the wear and noise of the door.