\NeedsTeXFormat{LaTeX2e} \ProvidesClass{impeart_zh}[2026/09/29 v1.0.1 IMPE class for Chinese article] \makeatletter \DeclareOption*{\PassOptionsToClass{\CurrentOption}{article}} \ProcessOptions\relax \def\NextSystemUiTag{zh} \def\NextDefaultLayout{zh_doc} \def\NextDefaultGlobalFonts{cmu,shanggu} \providecommand{\NextTitleAuthorFont}{\normalfont\large\itshape} \LoadClass{article} \RequirePackage{impe} \makeatother