Follow the design principle of "form follows function" and define the form and process with function as the core: the whole machine adopts integrated ultra-thin square shape, extremely compressed thickness to meet the portable demand, magnetic attraction structure and foldable bracket; At the same time, the process defines the functional partition, the anodized matte area is used as the main bearing structure and holding surface, taking into account wear resistance, fingerprint resistance and comfortable hand feeling, and the polished bright area accurately corresponds to the bracket function, it not only strengthens the structural identification, but also enhances the sense of delicacy with the level of light and shadow, so that every process and every line serve the function and realize the unity of function, form and process.