How to buy tokens on Gate.io?

As a cryptocurrency enthusiast, I'm always on the lookout for new and exciting platforms to invest in. One platform that has piqued my interest recently is Gate.io. However, I'm still a bit unclear on the process of buying tokens on this platform. Could you please explain, in a step-by-step manner, how I can purchase tokens on Gate.io? I'm particularly interested in understanding the registration process, funding my account, navigating the trading interface, and executing my first token purchase. I'd also appreciate any insights you have on the security measures Gate.io takes to protect its users' funds and personal information. Thank you for your help!