\documentclass[a4paper,12pt]{report}
\usepackage[utf8]{inputenc}
\usepackage[UTF8]{ctex}
\usepackage{xcolor}
%\setmainfont{Noto Serif CJK SC}
%\setmainfont{FangSong}
\setmainfont{SimSun}
%\fontsize{16pt}


% Title Page
\title{需要解决的问题}
\author{行走的芦苇}


\begin{document}
\maketitle

\begin{abstract}
\end{abstract}

\section{技术}
\section{生活}










\end{document}