diff --git a/docs/.vitepress/config.mjs b/docs/.vitepress/config.mjs
index 551c5b1..22a45fa 100644
--- a/docs/.vitepress/config.mjs
+++ b/docs/.vitepress/config.mjs
@@ -1239,6 +1239,34 @@ Sitemap: ${siteUrl}/sitemap.xml
       '✓ Generated robots.txt with sitemap URL:',
       `${siteUrl}/sitemap.xml`
     )
+
+    // Copy all .md files to dist for download/copy features
+    const srcDir = siteConfig.srcDir || path.resolve(outDir, '../../')
+    function copyMdFiles(src, dest) {
+      if (!fs.existsSync(dest)) {
+        fs.mkdirSync(dest, { recursive: true })
+      }
+      const entries = fs.readdirSync(src, { withFileTypes: true })
+      for (const entry of entries) {
+        const srcPath = path.join(src, entry.name)
+        const destPath = path.join(dest, entry.name)
+        if (entry.isDirectory()) {
+          if (
+            entry.name === '.vitepress' ||
+            entry.name === 'public' ||
+            entry.name === 'node_modules'
+          )
+            continue
+          copyMdFiles(srcPath, destPath)
+        } else if (entry.isFile() && entry.name.endsWith('.md')) {
+          fs.copyFileSync(srcPath, destPath)
+        }
+      }
+    }
+    console.log(
+      '✓ Copying markdown files to output directory for download feature...'
+    )
+    copyMdFiles(srcDir, outDir)
   },
 
   // 多语言配置 - 使用 cn/en-us/ja 结构
diff --git a/docs/.vitepress/theme/components/CopyOrDownloadAsMarkdownButtons/index.vue b/docs/.vitepress/theme/components/CopyOrDownloadAsMarkdownButtons/index.vue
index 8c3d385..044fe8a 100644
--- a/docs/.vitepress/theme/components/CopyOrDownloadAsMarkdownButtons/index.vue
+++ b/docs/.vitepress/theme/components/CopyOrDownloadAsMarkdownButtons/index.vue
@@ -50,7 +50,8 @@
 </template>
 
 <script setup>
-import { onMounted, onUnmounted, ref } from 'vue'
+import { onMounted, onUnmounted, ref, computed } from 'vue'
+import { useData } from 'vitepress'
 
 import iconChatGPT from './icons/chatgpt.svg?raw'
 import iconCheck from './icons/check.svg?raw'
@@ -61,7 +62,16 @@ import iconDownload from './icons/download.svg?raw'
 import iconExternal from './icons/external.svg?raw'
 import iconMarkdown from './icons/markdown.svg?raw'
 
-import { downloadFile, resolveMarkdownPageURL } from './utils'
+import { downloadFile } from './utils'
+
+const { page, site } = useData()
+
+const getMarkdownUrl = () => {
+	const origin = window.location.origin
+	let base = site.value.base || '/'
+	if (!base.endsWith('/')) base += '/'
+	return `${origin}${base}${page.value.filePath}`
+}
 
 const aiProviders = [
 	{ name: 'ChatGPT', icon: iconChatGPT, url: 'https://chatgpt.com/?hints=search&prompt=' },
@@ -98,10 +108,8 @@ function toggleDropdown() {
 	}
 }
 
-const currentURL = window.location.origin + window.location.pathname
-
 function copyAsMarkdown() {
-	fetch(resolveMarkdownPageURL(currentURL))
+	fetch(getMarkdownUrl())
 		.then((r) => r.text())
 		.then((text) => navigator.clipboard.writeText(text))
 		.then(() => {
@@ -116,22 +124,22 @@ function copyAsMarkdown() {
 }
 
 function viewAsMarkdown() {
-	window.open(resolveMarkdownPageURL(currentURL), '_blank')
+	window.open(getMarkdownUrl(), '_blank')
 	isOpen.value = false
 }
 
 function openInAI(provider) {
-	const markdownUrl = resolveMarkdownPageURL(currentURL)
+	const markdownUrl = getMarkdownUrl()
 	const prompt = `Read from ${markdownUrl} so I can ask questions about it.`
 	window.open(provider.url + encodeURIComponent(prompt), '_blank')
 	isOpen.value = false
 }
 
 function downloadMarkdown() {
-	fetch(resolveMarkdownPageURL(currentURL))
+	fetch(getMarkdownUrl())
 		.then((r) => r.text())
 		.then((text) => {
-			const filename = resolveMarkdownPageURL(currentURL).split('/').pop() || 'page.md'
+			const filename = page.value.filePath.split('/').pop() || 'page.md'
 			downloadFile(filename, text, 'text/markdown')
 			downloaded.value = true
 			setTimeout(() => {
diff --git a/docs/public/sitemap.xml b/docs/public/sitemap.xml
index 349c3b2..fce0178 100644
--- a/docs/public/sitemap.xml
+++ b/docs/public/sitemap.xml
@@ -949,7 +949,7 @@
   </url>
   <url>
     <loc>https://datawhalechina.github.io/easy-vibe/zh-cn/stage-2/backend/2.6-modern-cli/</loc>
-    <lastmod>2026-03-18T07:59:13-05:00</lastmod>
+    <lastmod>2026-03-23T17:36:13+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-2/backend/2.6-modern-cli/"/>
@@ -1056,7 +1056,7 @@
   </url>
   <url>
     <loc>https://datawhalechina.github.io/easy-vibe/zh-cn/stage-3/core-skills/basics/</loc>
-    <lastmod>2026-03-02T12:42:07+08:00</lastmod>
+    <lastmod>2026-03-23T17:36:13+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/core-skills/basics/"/>
diff --git a/scripts/generate-sitemap.mjs b/scripts/generate-sitemap.mjs
index 27aa1c0..5852cbb 100644
--- a/scripts/generate-sitemap.mjs
+++ b/scripts/generate-sitemap.mjs
@@ -16,7 +16,18 @@ const docsDir = path.resolve(__dirname, '../docs')
 const publicDir = path.resolve(__dirname, '../docs/public')
 
 // 支持的语言
-const locales = ['zh-cn', 'en', 'zh-tw', 'ja-jp', 'ko-kr', 'es-es', 'fr-fr', 'de-de', 'ar-sa', 'vi-vn']
+const locales = [
+  'zh-cn',
+  'en',
+  'zh-tw',
+  'ja-jp',
+  'ko-kr',
+  'es-es',
+  'fr-fr',
+  'de-de',
+  'ar-sa',
+  'vi-vn'
+]
 
 // 基础 URL (根据部署环境动态确定)
 const getBaseUrl = () => {
@@ -46,7 +57,12 @@ function scanMarkdownFiles(dir, basePath = '') {
 
     if (entry.isDirectory()) {
       // 跳过特殊目录
-      if (entry.name === '.vitepress' || entry.name === 'node_modules' || entry.name === 'dist' || entry.name === 'public') {
+      if (
+        entry.name === '.vitepress' ||
+        entry.name === 'node_modules' ||
+        entry.name === 'dist' ||
+        entry.name === 'public'
+      ) {
         continue
       }
       files.push(...scanMarkdownFiles(fullPath, relativePath))
@@ -152,7 +168,7 @@ function main() {
     baseFiles = scanMarkdownFiles(zhCnDir)
   } else {
     // 如果没有 zh-cn 目录，扫描 docs 根目录
-    baseFiles = scanMarkdownFiles(docsDir).filter(f => !f.includes('/'))
+    baseFiles = scanMarkdownFiles(docsDir).filter((f) => !f.includes('/'))
   }
 
   console.log(`📄 Found ${baseFiles} base pages`)
@@ -263,7 +279,7 @@ function getPriority(filePath) {
 function getHreflangCode(locale) {
   const map = {
     'zh-cn': 'zh-CN',
-    'en': 'en',
+    en: 'en',
     'zh-tw': 'zh-TW',
     'ja-jp': 'ja',
     'ko-kr': 'ko',