请问如何将gbt7714-2015宏包默认的英文人名全部大写改为仅首字母大写？

如题，使用overleaf进行论文写作，没有下载并添加gbt-7714-numerical.bst等文件。期望将图片

中的人名样式改为："Sauer T.","Strogatz S H.",其余内容（书名、日期等）格式不变。

目前我的代码如下：

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
A.cls文件
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\NeedsTeXFormat{LaTeX2e}
\ProvidesClass{A}[2021/05/24]

\LoadClass[UTF8,openany,a4paper,oneside,zihao=-4]{ctexbook}

% 参考文献格式 GB/T7714-2015
% 来自https://github.com/hushidong/biblatex-gb7714-2015
\RequirePackage[backend=biber,gbpub=false, style=gb7714-2015]{biblatex}
% 设置目录(可能与tocloft宏包存在潜在的冲突)
\RequirePackage{titletoc}

%条目段间距
\setlength{\bibitemsep}{0.03ex}
\setlength{\bibnamesep}{0.03ex}
%英文条目间距
\setlength{\bibinitsep}{0.03ex}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
main.tex文件
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\documentclass[]{A}
\addbibresource{content/reference.bib}

\begin{document}
\cite{Sauer} \cite{Strogatz}

\addcontentsline{toc}{chapter}{参考文献} %由于参考文献不是chapter，这句把参考文献加入目录
\printbibliography
\newpage
\end{document}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
reference.bib文件（在content文件夹下）
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@Book{Sauer,
  author = "Timothy Sauer",
  title = "Numerical Analysis",
  edition = "2",
  publisher = "Pearson Education, Inc",
  year = "2012",
  pages="316--317",
}

@Book{Strogatz,
  author = "S H Strogatz",
  title = "Nonlinear Dynamics and Chaos: With Application to Physics, Biology, Chemistry and Engineering",
  publisher = "Perseus Books Publishing, Cambridge",
  year = "1994",
}

查看更多