求问每个章节的标题大小是不是应该不一样大呢？ about njuthesis HOT 2 CLOSED

\ctexset{
  section/format = \zihao{-4} \sffamily,
  subsection/format = \zihao{5} \sffamily
}

\documentclass[oneside]{njuthesis}
\begin{document}
\mainmatter
\chapter{标题}
\section{标题}
\subsection{标题}
\subsubsection{标题}
\ctexset{
 chapter/format = \centering \zihao{-1} \sffamily,
 section/format = \zihao{-2} \sffamily,
 subsection/format =\zihao{-3} \sffamily,
 subsubsection/format =\zihao{-3} \sffamily
}
\chapter{标题}
\section{标题}
\subsection{标题}
\subsubsection{标题}
\end{document}