diff --git a/lib/main.dart b/lib/main.dart
index 42c9c82..b823639 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -132,6 +132,38 @@ class _MyAppState extends State<MyApp> with WidgetsBindingObserver {
     };
   }
 
+  ThemeData getTheme(
+    Color primary,
+    Color? secondary,
+    Color? tertiary,
+    Brightness brightness,
+  ) {
+    String? font;
+    List<String>? fallback;
+    if (App.isWindows) {
+      font = 'Segoe UI';
+      fallback = [
+        'Segoe UI',
+        'Microsoft YaHei',
+        'PingFang SC',
+        'Noto Sans CJK',
+        'Arial',
+        'sans-serif'
+      ];
+    }
+    return ThemeData(
+      colorScheme: SeedColorScheme.fromSeeds(
+        primaryKey: primary,
+        secondaryKey: secondary,
+        tertiaryKey: tertiary,
+        brightness: brightness,
+        tones: FlexTones.vividBackground(brightness),
+      ),
+      fontFamily: font,
+      fontFamilyFallback: fallback,
+    );
+  }
+
   @override
   Widget build(BuildContext context) {
     Widget home;
@@ -158,24 +190,9 @@ class _MyAppState extends State<MyApp> with WidgetsBindingObserver {
       return MaterialApp(
         home: home,
         debugShowCheckedModeBanner: false,
-        theme: ThemeData(
-          colorScheme: SeedColorScheme.fromSeeds(
-            primaryKey: primary,
-            secondaryKey: secondary,
-            tertiaryKey: tertiary,
-            tones: FlexTones.vividBackground(Brightness.light),
-          ),
-        ),
+        theme: getTheme(primary, secondary, tertiary, Brightness.light),
         navigatorKey: App.rootNavigatorKey,
-        darkTheme: ThemeData(
-          colorScheme: SeedColorScheme.fromSeeds(
-            primaryKey: primary,
-            secondaryKey: secondary,
-            tertiaryKey: tertiary,
-            brightness: Brightness.dark,
-            tones: FlexTones.vividBackground(Brightness.dark),
-          ),
-        ),
+        darkTheme: getTheme(primary, secondary, tertiary, Brightness.dark),
         themeMode: switch (appdata.settings['theme_mode']) {
           'light' => ThemeMode.light,
           'dark' => ThemeMode.dark,