The role of fonts in design is crucial. To put it simply: 1. If used as text. For official documents, slogans, etc., and more formal content, try to use printed fonts, that is, boldface, Song font, etc. Be persuasive and believable. The title should be bold and the body text should be thin. 2. As a theme for promotions, activities and lively content, it is necessary to use fresh, special or children's fonts. For example, felt pen black, amber body, children's body, etc. 3. Classical charm, Chinese style or imposing publicity and headlines generally use calligraphy fonts, such as Ye Genyou running script, Fangzheng official script, Lier simplified script, etc. 4. For service industries, fonts should be round rather than square. Thick round, semi-round, fashionable medium black, Chinese true wide, etc.
Of course, it depends on the specific situation, region (Traditional Chinese for Taiwan, Simplified Chinese for Mainland China), layout matching, etc. There is still room for various designs.
There is even more space when using fonts to design layouts. It has to be experienced concretely in the design work. It can only be understood but cannot be expressed in words.