diff --git a/.vitepress/theme/index.ts b/.vitepress/theme/index.mts
similarity index 100%
rename from .vitepress/theme/index.ts
rename to .vitepress/theme/index.mts
diff --git a/.vitepress/theme/style/var.css b/.vitepress/theme/style/custom.css
similarity index 98%
rename from .vitepress/theme/style/var.css
rename to .vitepress/theme/style/custom.css
index 4db0180..798064e 100644
--- a/.vitepress/theme/style/var.css
+++ b/.vitepress/theme/style/custom.css
@@ -1,4 +1,4 @@
-/* var.css */
+/* custom.css */
 :root {
   --vp-c-brand-1: #18794e;
   --vp-c-brand-2: #299764;
diff --git a/.vitepress/theme/style/index.css b/.vitepress/theme/style/index.css
index b4984f8..ca5fd01 100644
--- a/.vitepress/theme/style/index.css
+++ b/.vitepress/theme/style/index.css
@@ -1,2 +1,2 @@
 /* index.css */
-@import "./var.css";
+@import "./custom.css";