(A product interface design with tens of millions of users should not only stay at the visual level, but more importantly: the design should meet product characteristics and user needs. When major Internet companies interview UI designers, they will not only look at professional design capabilities, but also value J-level skills such as product thinking, data analysis, and design evaluation. You might think this is the role of other jobs, but these are the decisive skills you need to design products that look good and work well. The UI industry is getting quieter. How to stand out in the increasingly fierce competition? How to lay a solid foundation and break through the bottleneck of UI design?)