I designed the latest style of a product myself. I want to apply for a patent. But I don't have any physical objects. Only I draw designs. Can I apply?

Yes, you can apply for a patent on the drawing. You can find a patent agent to apply for a patent. You need money, not only when you apply, but also after you apply for a patent, you need to renew it every year during the validity period of the patent to maintain the patent. This is the patent system in China.