diff --git a/.changeset/rich-mirrors-doubt.md b/.changeset/rich-mirrors-doubt.md
new file mode 100644
index 00000000..bc850531
--- /dev/null
+++ b/.changeset/rich-mirrors-doubt.md
@@ -0,0 +1,5 @@
+---
+"@virtual-live-lab/stylelint-config": patch
+---
+
+Use default export, improve install doc
diff --git a/packages/stylelint-config/README.md b/packages/stylelint-config/README.md
index cab5e3b3..afa29487 100644
--- a/packages/stylelint-config/README.md
+++ b/packages/stylelint-config/README.md
@@ -21,6 +21,11 @@ npm install stylelint \
   --save-dev
 ```
 
+```js
+// stylelint.config.mjs
+export { default } from "@virtual-live-lab/stylelint-config"
+```
+
 ### Use for scss
 
 ```bash
@@ -37,8 +42,20 @@ npm install stylelint \
   --save-dev
 ```
 
+```js
+// stylelint.config.mjs
+export { default } from "@virtual-live-lab/stylelint-config/scss"
+```
+
 ### Use for Astro
 
+> [!TIP]
+> If some syntax error occurred in Astro, you should install `postcss-html`.
+>
+> ```bash
+> npm install postcss-html --save-dev
+> ```
+
 ```bash
 npm install stylelint \
   @virtual-live-lab/stylelint-config \
@@ -54,6 +71,11 @@ npm install stylelint \
   --save-dev
 ```
 
+```js
+// stylelint.config.mjs
+export { default } from "@virtual-live-lab/stylelint-config/astro"
+```
+
 ## License
 
 [MIT](https://choosealicense.com/licenses/mit/)
diff --git a/packages/stylelint-config/package.json b/packages/stylelint-config/package.json
index f693f86d..4561d975 100644
--- a/packages/stylelint-config/package.json
+++ b/packages/stylelint-config/package.json
@@ -10,6 +10,16 @@
       "require": "./dist/index.js",
       "import": "./dist/index.mjs",
       "types": "./dist/index.d.ts"
+    },
+    "./scss": {
+      "require": "./dist/scss.js",
+      "import": "./dist/scss.mjs",
+      "types": "./dist/scss.d.ts"
+    },
+    "./astro": {
+      "require": "./dist/astro.js",
+      "import": "./dist/astro.mjs",
+      "types": "./dist/astro.d.ts"
     }
   },
   "files": [
diff --git a/packages/stylelint-config/src/astro.ts b/packages/stylelint-config/src/astro.ts
index 2eaac386..1b68cc95 100644
--- a/packages/stylelint-config/src/astro.ts
+++ b/packages/stylelint-config/src/astro.ts
@@ -1,11 +1,11 @@
 import type { Config } from "stylelint"
 
-import { baseConfig } from "./base"
-import { astroExtend } from "./extend"
+import { baseConfig } from "./bases/base"
+import { astroExtend } from "./bases/extend"
 
 const { rules: baseRules, ...base } = baseConfig
 
-const astroConfig: Config = {
+const astro: Config = {
   ...base,
   extends: astroExtend,
   rules: {
@@ -19,4 +19,4 @@ const astroConfig: Config = {
   },
 }
 
-export default astroConfig
+export default astro
diff --git a/packages/stylelint-config/src/base.ts b/packages/stylelint-config/src/bases/base.ts
similarity index 100%
rename from packages/stylelint-config/src/base.ts
rename to packages/stylelint-config/src/bases/base.ts
diff --git a/packages/stylelint-config/src/extend.ts b/packages/stylelint-config/src/bases/extend.ts
similarity index 100%
rename from packages/stylelint-config/src/extend.ts
rename to packages/stylelint-config/src/bases/extend.ts
diff --git a/packages/stylelint-config/src/css.ts b/packages/stylelint-config/src/css.ts
deleted file mode 100644
index 05c90e3e..00000000
--- a/packages/stylelint-config/src/css.ts
+++ /dev/null
@@ -1,22 +0,0 @@
-import type { Config } from "stylelint"
-
-import { baseConfig } from "./base"
-import { cssExtend } from "./extend"
-
-const { rules: baseRules, ...base } = baseConfig
-
-const cssConfig: Config = {
-  ...base,
-  extends: cssExtend,
-  rules: {
-    ...baseRules,
-    "at-rule-no-unknown": [
-      true,
-      {
-        ignoreAtRules: ["tailwind"],
-      },
-    ],
-  },
-}
-
-export default cssConfig
diff --git a/packages/stylelint-config/src/index.ts b/packages/stylelint-config/src/index.ts
index 6b5f7435..38956666 100644
--- a/packages/stylelint-config/src/index.ts
+++ b/packages/stylelint-config/src/index.ts
@@ -1,3 +1,22 @@
-export { default as astro } from "./astro"
-export { default as css } from "./css"
-export { default as scss } from "./scss"
+import type { Config } from "stylelint"
+
+import { baseConfig } from "./bases/base"
+import { cssExtend } from "./bases/extend"
+
+const { rules: baseRules, ...base } = baseConfig
+
+const css: Config = {
+  ...base,
+  extends: cssExtend,
+  rules: {
+    ...baseRules,
+    "at-rule-no-unknown": [
+      true,
+      {
+        ignoreAtRules: ["tailwind"],
+      },
+    ],
+  },
+}
+
+export default css
diff --git a/packages/stylelint-config/src/scss.ts b/packages/stylelint-config/src/scss.ts
index 0f059651..8e98f3c3 100644
--- a/packages/stylelint-config/src/scss.ts
+++ b/packages/stylelint-config/src/scss.ts
@@ -1,11 +1,11 @@
 import type { Config } from "stylelint"
 
-import { baseConfig } from "./base"
-import { scssExtend } from "./extend"
+import { baseConfig } from "./bases/base"
+import { scssExtend } from "./bases/extend"
 
 const { rules: baseRules, ...base } = baseConfig
 
-const scssConfig: Config = {
+const scss: Config = {
   ...base,
   extends: scssExtend,
   rules: {
@@ -25,4 +25,4 @@ const scssConfig: Config = {
   },
 }
 
-export default scssConfig
+export default scss
diff --git a/packages/stylelint-config/tsup.config.ts b/packages/stylelint-config/tsup.config.ts
index ba5a8b39..a546ad97 100644
--- a/packages/stylelint-config/tsup.config.ts
+++ b/packages/stylelint-config/tsup.config.ts
@@ -3,7 +3,7 @@ import { defineConfig } from "tsup"
 export default defineConfig({
   clean: true, // build前にディレクトリ内を削除するか
   dts: true,
-  entry: ["./src/index.ts"], // バンドルするファイルを指定
+  entry: ["./src/*.ts"], // バンドルするファイルを指定
   format: ["cjs", "esm"], // 出力する形式を指定
   minify: process.env.NODE_ENV === "production",
   outDir: "dist",
diff --git a/stylelint.config.mjs b/stylelint.config.mjs
index 56cac2a3..8ed2630c 100644
--- a/stylelint.config.mjs
+++ b/stylelint.config.mjs
@@ -1 +1 @@
-export { css as default } from "@virtual-live-lab/stylelint-config"
+export { default } from "@virtual-live-lab/stylelint-config"