diff --git a/assets/custom0.js b/assets/custom.js
similarity index 100%
rename from assets/custom0.js
rename to assets/custom.js
diff --git a/book.toml b/book.toml
index 06991fe7..20e7368a 100644
--- a/book.toml
+++ b/book.toml
@@ -5,8 +5,8 @@ title = "Rust语言圣经(Rust教程 Rust Course)"
 src = "src"
 
 [output.html]
-additional-css = ["theme/style4.css"]
-additional-js = ["assets/custom0.js", "assets/bigPicture.js"]
+additional-css = ["theme/style.css"]
+additional-js = ["assets/custom.js", "assets/bigPicture.js"]
 git-repository-url = "https://github.com/sunface/rust-course"
 edit-url-template = "https://github.com/sunface/rust-course/edit/main/{path}"
 
diff --git a/theme/style4.css b/theme/style.css
similarity index 100%
rename from theme/style4.css
rename to theme/style.css