diff --git a/assets/wechat.png b/assets/wechat.png
index 6ada764..8a4ce0a 100644
Binary files a/assets/wechat.png and b/assets/wechat.png differ
diff --git a/docs/public/sitemap.xml b/docs/public/sitemap.xml
index 247af44..b30b97d 100644
--- a/docs/public/sitemap.xml
+++ b/docs/public/sitemap.xml
@@ -1119,7 +1119,7 @@
   </url>
   <url>
     <loc>https://datawhalechina.github.io/easy-vibe/zh-cn/stage-3/cross-platform/3.1-choose-platform/</loc>
-    <lastmod>2026-03-07T05:38:15.137Z</lastmod>
+    <lastmod>2026-03-08T12:07:23+08:00</lastmod>
     <changefreq>weekly</changefreq>
     <priority>0.8</priority>
     <xhtml:link rel="alternate" hreflang="zh-CN" href="https://datawhalechina.github.io/easy-vibe/zh-cn/stage-3/cross-platform/3.1-choose-platform/"/>
@@ -1182,7 +1182,7 @@
   </url>
   <url>
     <loc>https://datawhalechina.github.io/easy-vibe/zh-cn/stage-3/cross-platform/3.8-pwa-local-app/</loc>
-    <lastmod>2026-02-28T19:09:56+08:00</lastmod>
+    <lastmod>2026-03-07T23:02:24+08:00</lastmod>
     <changefreq>weekly</changefreq>
     <priority>0.8</priority>
     <xhtml:link rel="alternate" hreflang="zh-CN" href="https://datawhalechina.github.io/easy-vibe/zh-cn/stage-3/cross-platform/3.8-pwa-local-app/"/>
@@ -1196,7 +1196,7 @@
   </url>
   <url>
     <loc>https://datawhalechina.github.io/easy-vibe/zh-cn/stage-3/</loc>
-    <lastmod>2026-03-02T02:20:17+08:00</lastmod>
+    <lastmod>2026-03-07T14:11:01+08:00</lastmod>
     <changefreq>weekly</changefreq>
     <priority>0.8</priority>
     <xhtml:link rel="alternate" hreflang="zh-CN" href="https://datawhalechina.github.io/easy-vibe/zh-cn/stage-3/"/>