diff --git a/src/assets/mainpage_avatars/passthem.png b/src/assets/mainpage_avatars/passthem.png
new file mode 100644
index 0000000..9a8ff64
Binary files /dev/null and b/src/assets/mainpage_avatars/passthem.png differ
diff --git a/src/pages/index.astro b/src/pages/index.astro
index b28789c..91879d7 100644
--- a/src/pages/index.astro
+++ b/src/pages/index.astro
@@ -8,13 +8,10 @@ import MainpageComments from '../components/MainpageComments.astro'
 import MainpageTypewriter from '../components/MainpageTypewriter.svelte'
 import { Image } from 'astro:assets'
 import { Icon } from 'astro-icon/components'
+import PassthemAvatar from '../assets/mainpage_avatars/passthem.png'
 
 import { mainpageGetClick } from '../lib/apis/legacy/mainpage'
 
-// 常量定义
-const AVATAR_URL =
-  'https://cdn.passthem.top/sharex/2026/03/%E6%93%A6%E6%B1%97%E5%90%8E_%E6%96%B9%E5%BD%A2.png.upscale.png'
-
 // 无用按钮的数字预注入
 let initialClicks = 0
 
@@ -33,11 +30,12 @@ try {
     <div class="self-introduction">
       <figure class="avatar">
         <Image
-          src={AVATAR_URL}
+          src={PassthemAvatar}
           alt="passthem 的头像，一个戴眼镜的男孩"
           loading="eager"
           width={240}
           height={240}
+          densities={[1.5, 2]}
         />
       </figure>
       <div class="descriptions">