<% if(theme.post.math.engine === 'mathjax') { %> <% var lazy = theme.lazyload.enable && require_version(theme.static_prefix.mathjax, '3.2.0') import_script(` `) import_js(theme.static_prefix.mathjax.replace('es5/', ''), 'es5/tex-mml-chtml.js') %> <% } else if (theme.post.math.engine === 'katex') { %> <% import_css(theme.static_prefix.katex, 'katex.min.css') %> <% } %>