diff --git a/build.mjs b/build.mjs
index ca2667c..06611a4 100644
--- a/build.mjs
+++ b/build.mjs
@@ -191,6 +191,20 @@ async function runWebpack(isWithoutKatex, isWithoutTiktoken, callback) {
               },
             }
           : {},
+        isWithoutKatex && isWithoutTiktoken
+          ? {
+              test: /styles\.scss$/,
+              loader: 'string-replace-loader',
+              options: {
+                multiple: [
+                  {
+                    search: "@import '../fonts/styles.css';",
+                    replace: '',
+                  },
+                ],
+              },
+            }
+          : {},
       ],
     },
   })
diff --git a/src/popup/styles.scss b/src/popup/styles.scss
index 2ba58cc..58606f6 100644
--- a/src/popup/styles.scss
+++ b/src/popup/styles.scss
@@ -1,13 +1,10 @@
 [data-theme='auto'] {
-  @import 'github-markdown-css/github-markdown.css';
   @media screen and (prefers-color-scheme: dark) {
-    @import 'highlight.js/scss/github-dark.scss';
     --font-color: #c9d1d9;
     --theme-color: #202124;
     --active-color: #3c4043;
   }
   @media screen and (prefers-color-scheme: light) {
-    @import 'highlight.js/scss/github.scss';
     --font-color: #24292f;
     --theme-color: #ffffff;
     --active-color: #eaecf0;
@@ -15,18 +12,12 @@
 }
 
 [data-theme='dark'] {
-  @import 'highlight.js/scss/github-dark.scss';
-  @import 'github-markdown-css/github-markdown-dark.css';
-
   --font-color: #c9d1d9;
   --theme-color: #202124;
   --active-color: #3c4043;
 }
 
 [data-theme='light'] {
-  @import 'highlight.js/scss/github.scss';
-  @import 'github-markdown-css/github-markdown-light.css';
-
   --font-color: #24292f;
   --theme-color: #ffffff;
   --active-color: #eaecf0;