我有一个 pdflatex bookdown 模板，设置为使用 Times New Roman 字体，但实际显示的却是 Arial 字体。我希望全局定义这种可优先性（而不是在每个文档内定义），我尝试过：
\usepackage[T1]{fontenc}
\usepackage{times}
\usepackage[utf8]{inputenc}
\usepackage{mathptmx}
\setmainfont{Times New Roman}
非常感谢您的任何建议！
CSL 如下：
\NeedsTeXFormat{LaTeX2e}
\ProvidesClass{glasgowthesis}[]
\DeclareOption*{\PassOptionsToClass{\CurrentOption}{book}}
\ProcessOptions\relax
\LoadClass{book}
\RequirePackage{fancyhdr}
\RequirePackage{fancyvrb}
\usepackage{ifxetex,ifluatex}
\setlength{\parindent}{0pt} % comment out for indentation globally
\usepackage{fixltx2e} % provides \textsubscript
\ifnum 0\ifxetex 1\fi\ifluatex 1\fi=0 % if pdftex
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\else % if luatex or xelatex
\ifxetex
\usepackage{mathspec}
\usepackage{xltxtra,xunicode}
\else
\usepackage{fontspec}
\fi
\defaultfontfeatures{Mapping=tex-text,Scale=MatchLowercase}
\newcommand{\euro}{b,}
\fi
% use upquote if available, for straight quotes in verbatim environments
\IfFileExists{upquote.sty}{\usepackage{upquote}}{}
% use microtype if available
\IfFileExists{microtype.sty}{%
\usepackage{microtype}
\UseMicrotypeSet[protrusion]{basicmath} % disable protrusion for tt fonts
}{}
\usepackage{color}
%\newcommand{\VerbBar}{|}
%\newcommand{\VERB}{\Verb[commandchars=\\\{\}]}
\DefineVerbatimEnvironment{verbatim}{Verbatim}{xleftmargin=-1em}
\DefineVerbatimEnvironment{Highlighting}{Verbatim}{commandchars=\\\{\}}
% Add ',fontsize=\small' for more characters per line
\usepackage{framed}
\definecolor{shadecolor}{RGB}{248,248,248}
% \newenvironment{Shaded}{\begin{snugshade}}{\end{snugshade}}
% \newcommand{\KeywordTok}[1]{\textcolor[rgb]{0.13,0.29,0.53}{\textbf{{#1}}}}
% \newcommand{\DataTypeTok}[1]{\textcolor[rgb]{0.13,0.29,0.53}{{#1}}}
% \newcommand{\DecValTok}[1]{\textcolor[rgb]{0.00,0.00,0.81}{{#1}}}
% \newcommand{\BaseNTok}[1]{\textcolor[rgb]{0.00,0.00,0.81}{{#1}}}
% \newcommand{\FloatTok}[1]{\textcolor[rgb]{0.00,0.00,0.81}{{#1}}}
% \newcommand{\ConstantTok}[1]{\textcolor[rgb]{0.00,0.00,0.00}{{#1}}}
% \newcommand{\CharTok}[1]{\textcolor[rgb]{0.31,0.60,0.02}{{#1}}}
% \newcommand{\SpecialCharTok}[1]{\textcolor[rgb]{0.00,0.00,0.00}{{#1}}}
% \newcommand{\StringTok}[1]{\textcolor[rgb]{0.31,0.60,0.02}{{#1}}}
% \newcommand{\VerbatimStringTok}[1]{\textcolor[rgb]{0.31,0.60,0.02}{{#1}}}
% \newcommand{\SpecialStringTok}[1]{\textcolor[rgb]{0.31,0.60,0.02}{{#1}}}
% \newcommand{\ImportTok}[1]{{#1}}
% \newcommand{\CommentTok}[1]{\textcolor[rgb]{0.56,0.35,0.01}{\textit{{#1}}}}
% \newcommand{\DocumentationTok}[1]{\textcolor[rgb]{0.56,0.35,0.01}{\textbf{\textit{{#1}}}}}
% \newcommand{\AnnotationTok}[1]{\textcolor[rgb]{0.56,0.35,0.01}{\textbf{\textit{{#1}}}}}
% \newcommand{\CommentVarTok}[1]{\textcolor[rgb]{0.56,0.35,0.01}{\textbf{\textit{{#1}}}}}
% \newcommand{\OtherTok}[1]{\textcolor[rgb]{0.56,0.35,0.01}{{#1}}}
% \newcommand{\FunctionTok}[1]{\textcolor[rgb]{0.00,0.00,0.00}{{#1}}}
% \newcommand{\VariableTok}[1]{\textcolor[rgb]{0.00,0.00,0.00}{{#1}}}
% \newcommand{\ControlFlowTok}[1]{\textcolor[rgb]{0.13,0.29,0.53}{\textbf{{#1}}}}
% \newcommand{\OperatorTok}[1]{\textcolor[rgb]{0.81,0.36,0.00}{\textbf{{#1}}}}
% \newcommand{\BuiltInTok}[1]{{#1}}
% \newcommand{\ExtensionTok}[1]{{#1}}
% \newcommand{\PreprocessorTok}[1]{\textcolor[rgb]{0.56,0.35,0.01}{\textit{{#1}}}}
% \newcommand{\AttributeTok}[1]{\textcolor[rgb]{0.77,0.63,0.00}{{#1}}}
% \newcommand{\RegionMarkerTok}[1]{{#1}}
% \newcommand{\InformationTok}[1]{\textcolor[rgb]{0.56,0.35,0.01}{\textbf{\textit{{#1}}}}}
% \newcommand{\WarningTok}[1]{\textcolor[rgb]{0.56,0.35,0.01}{\textbf{\textit{{#1}}}}}
% \newcommand{\AlertTok}[1]{\textcolor[rgb]{0.94,0.16,0.16}{{#1}}}
% \newcommand{\ErrorTok}[1]{\textcolor[rgb]{0.64,0.00,0.00}{\textbf{{#1}}}}
% \newcommand{\NormalTok}[1]{{#1}}
\setlength{\emergencystretch}{3em} % prevent overfull lines
\providecommand{\tightlist}{%
\setlength{\itemsep}{0pt}\setlength{\parskip}{0pt}}
% End of CII add
% This gives us rules below the headers
\AtBeginDocument{%
\fancyhf{}
\fancyhead[LE,RO]{\thepage}
\fancyhead[RE]{\slshape \nouppercase \leftmark} % This makes the headers on the RIGHT side pages be italic and use lowercase With Capitals When Specified. I dont think this works.
\fancyhead[LO]{\slshape \nouppercase \rightmark} % This does the same thing to the LEFT side pages
\pagestyle{fancy}
\let\oldthebibliography=\thebibliography
\let\endoldthebibliography=\endthebibliography
\renewenvironment{thebibliography}[1]{
\oldthebibliography{#1}
\addcontentsline{toc}{chapter}{\bibname}
}{\endoldthebibliography}
\let\oldtheindex=\theindex
\let\endoldtheindex=\endtheindex
\renewenvironment{theindex}{
\oldtheindex
\addcontentsline{toc}{chapter}{\indexname}
}{\endoldtheindex}
}
% Stolen from book.cls and modified
\let\RToldchapter\chapter
\renewcommand{\chapter}{\if@openright\RTcleardoublepage
\else\clearpage\fi
\thispagestyle{empty}%
\global\@topnum\z@
\@afterindentfalse
\secdef\@chapter\@schapter}
% Using this to actually show "Chapter 1" in TOC instead of "1"
\def\@chapter[#1]#2{\ifnum \c@secnumdepth >\m@ne
\if@mainmatter
\refstepcounter{chapter}%
\typeout{\@chapapp\space\thechapter.}%
\addcontentsline{toc}{chapter}%
{\@chapapp\space\thechapter:\space#1}%
\else
\addcontentsline{toc}{chapter}{#1}%
\fi
\else
\addcontentsline{toc}{chapter}{#1}%
\fi
\chaptermark{#1}%
\addtocontents{lof}{\protect\addvspace{10\p@}}%
\addtocontents{lot}{\protect\addvspace{10\p@}}%
\if@twocolumn
\@topnewpage[\@makechapterhead{#2}]%
\else
\@makechapterhead{#2}%
\@afterheading
\fi}
\newcommand{\RTcleardoublepage}{
\clearpage\if@twoside \ifodd\c@page\else
\thispagestyle{empty}\hbox{}\newpage
\if@twocolumn\hbox{}\newpage\fi\fi\fi}
\let\RToldcleardoublepage\cleardoublepage
\renewcommand{\cleardoublepage}{\RTcleardoublepage}
%%% Margins
\usepackage[top=1.8cm, bottom=1.8cm,left=4.0cm,right=1.5cm]{geometry}
%\usepackage[margin=1in]{geometry} % 1 inch margin across all sides
% \oddsidemargin 0truemm % add for printing
\evensidemargin 15truemm % add for printing
%%