Title: Small 4 in black.
Title: Small size 4 is bold.
Title: Small Four Bold
Text: Xiao No.4 Song Style, 1.5 times line spacing.
Page number: Small 5th Song Dynasty
Numbers and letters: Times New Roman
The title and abstract are separated by 2 lines, and the "abstract" is small and thick, separated by 2 characters and centered.
The keyword font is a small four-letter font, which is bold. Two character spaces are used as spaces between keywords, and the last keyword does not use punctuation.
Preface or introduction, conclusion, references, etc. : Small size 4 is bold, bold and centered.