\documentclass{ctexart}
\setmainfont{Liberation Serif}
\setCJKmainfont{AR PL UMing TW}
\usepackage[T1]{fontenc}
\usepackage[a4paper,textwidth=13.5cm]{geometry}
\usepackage{framed}
\usepackage{color}
\usepackage{hyperref}
\hypersetup{
colorlinks=true,
linkcolor=blue,
filecolor=magenta,
urlcolor=cyan,
}
\urlstyle{same}
\definecolor{shadecolor}{rgb}{0.92,0.92,0.92}
\title{健康}
\author{ABC醫師\thanks{作者為家庭醫學科主治醫師 email: \href{emailto: test@xyzmail.com}{test@xyzmail.com}}}
\date{2022年3月10日修訂版}
\begin{document}
\maketitle
\fontsize{12}{20pt}\selectfont
您可以用中文。You can also write English document.
\end{document}