diff --git a/fonts/SimHei.ttf b/fonts/SimHei.ttf
new file mode 100644
index 0000000..5bd4687
Binary files /dev/null and b/fonts/SimHei.ttf differ
diff --git a/fonts/SimSun.ttf b/fonts/SimSun.ttf
new file mode 100644
index 0000000..463b3a9
Binary files /dev/null and b/fonts/SimSun.ttf differ
diff --git a/fonts/Times New Roman.ttf b/fonts/Times New Roman.ttf
new file mode 100644
index 0000000..d7969c3
Binary files /dev/null and b/fonts/Times New Roman.ttf differ
diff --git a/style/tongjithesis.cls b/style/tongjithesis.cls
index f1dc29c..24c5693 100644
--- a/style/tongjithesis.cls
+++ b/style/tongjithesis.cls
@@ -8,27 +8,15 @@
 % 加载 ctexart 类，有关该类简单说明，see https://www.overleaf.com/learn/latex/Chinese
 % 该类提供包括但不限于 \heiti \zihao 等指令
 \LoadClass[UTF8,a4paper,fontset=none]{ctexart}
+% 设置默认中英文默认字体
+\setCJKmainfont{SimSun.ttf}[Path=./fonts/]
+\setmainfont{Times New Roman}[Path=./fonts/]
+
+\setCJKfamilyfont{zhsong}{SimSun}[Path=./fonts/, Extension=.ttf]
+\setCJKfamilyfont{zhhei}{SimHei}[Path=./fonts/, Extension=.ttf]
+\newcommand*{\songti}{\CJKfamily{zhsong}}
+\newcommand*{\heiti}{\CJKfamily{zhhei}}
 
-\ifwindows
-	% \newfontface\heiti{SimHei}[Path=C:/Windows/Fonts/, AutoFakeBold=3]
-	% \newfontface\songti{SimSun}[Path=C:/Windows/Fonts/, AutoFakeBold=3]
-	\setCJKmainfont{simsun.ttc}
-
-	\setCJKfamilyfont{zhsong}{simsun.ttc}
-	\setCJKfamilyfont{zhhei}{simhei.ttf}
-	\newcommand*{\songti}{\CJKfamily{zhsong}}
-	\newcommand*{\heiti}{\CJKfamily{zhhei}}
-\fi
-
-\iflinux
-	\setCJKmainfont{SimSun}[Path=/usr/share/fonts/truetype/, Extension=.ttf] % 中文字体使用宋体
-
-	\setCJKfamilyfont{zhsong}{SimSun}[Path=/usr/share/fonts/truetype/, Extension=.ttf]
-	\setCJKfamilyfont{zhhei}{SimHei}[Path=/usr/share/fonts/truetype/, Extension=.ttf]
-	\newcommand*{\songti}{\CJKfamily{zhsong}}
-	\newcommand*{\heiti}{\CJKfamily{zhhei}}
-\fi
-\setmainfont{Times New Roman} % 英文字体使用 Times New Roman
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % 若你想要用句点（．）替换句号（。）