If you have a good idea or creativity, can you apply for a patent?

You can't patent just for an idea. China's patent law stipulates that there must be physical objects and detailed technical descriptions, and ordinary technicians in this industry can only apply for patents if they can make physical objects according to the descriptions. If you really have some ideas, you might as well consult the manufacturer and try to make one before applying to the patent office. Remember to sign the contract first and say that the patent right belongs to you, but you can let them use it exclusively.