diff --git a/.memsearch/memory/2026-06-03.md b/.memsearch/memory/2026-06-03.md
new file mode 100644
index 0000000..307b486
--- /dev/null
+++ b/.memsearch/memory/2026-06-03.md
@@ -0,0 +1,6 @@
+
+## Session 14:55
+
+
+## Session 14:59
+
diff --git a/frontend/src/pages/Preview/FileSharePage.jsx b/frontend/src/pages/Preview/FileSharePage.jsx
index 55f4d37..8428955 100644
--- a/frontend/src/pages/Preview/FileSharePage.jsx
+++ b/frontend/src/pages/Preview/FileSharePage.jsx
@@ -1,7 +1,7 @@
 import { useState, useEffect, useRef } from 'react'
 import { useNavigate, useParams } from 'react-router-dom'
 import { Layout, Modal, Input, Spin, Button, Space, Tooltip } from 'antd'
-import { CloseOutlined, LockOutlined, FileTextOutlined, FilePdfOutlined, VerticalAlignTopOutlined, CloudDownloadOutlined, MenuOutlined } from '@ant-design/icons'
+import { LockOutlined, FileTextOutlined, FilePdfOutlined, VerticalAlignTopOutlined, CloudDownloadOutlined, MenuOutlined, ArrowLeftOutlined } from '@ant-design/icons'
 import ReactMarkdown from 'react-markdown'
 import remarkGfm from 'remark-gfm'
 import rehypeHighlight from 'rehype-highlight'
@@ -173,9 +173,9 @@ function FileSharePage() {
                 type="button"
                 className="project-back-button"
                 onClick={handleClose}
-                aria-label="关闭文档分享"
+                aria-label="返回"
               >
-                <CloseOutlined />
+                <ArrowLeftOutlined />
               </button>
               <h3 className="preview-header-title">
                 <HeaderIcon className="preview-header-icon" style={isHeaderPdf ? { color: '#f5222d' } : undefined} />
diff --git a/frontend/src/pages/Preview/ProjectSharePage.jsx b/frontend/src/pages/Preview/ProjectSharePage.jsx
index 8f9d0d4..fef9f7f 100644
--- a/frontend/src/pages/Preview/ProjectSharePage.jsx
+++ b/frontend/src/pages/Preview/ProjectSharePage.jsx
@@ -1,7 +1,7 @@
 import { useState, useEffect, useRef, useMemo } from 'react'
 import { useParams, useSearchParams, useNavigate } from 'react-router-dom'
 import { Layout, Menu, Spin, Button, Modal, Input, Drawer, Empty, Tooltip, Space } from 'antd'
-import { FileTextOutlined, FolderOutlined, FolderOpenOutlined, FilePdfOutlined, LockOutlined, MenuOutlined, CloseOutlined, VerticalAlignTopOutlined, CloudDownloadOutlined, UnorderedListOutlined } from '@ant-design/icons'
+import { FileTextOutlined, FolderOutlined, FolderOpenOutlined, FilePdfOutlined, LockOutlined, MenuOutlined, VerticalAlignTopOutlined, CloudDownloadOutlined, UnorderedListOutlined, ArrowLeftOutlined } from '@ant-design/icons'
 import ReactMarkdown from 'react-markdown'
 import remarkGfm from 'remark-gfm'
 import rehypeHighlight from 'rehype-highlight'
@@ -463,9 +463,9 @@ function ProjectSharePage() {
                   type="button"
                   className="project-back-button"
                   onClick={handleClose}
-                  aria-label="关闭项目分享"
+                  aria-label="返回"
                 >
-                  <CloseOutlined />
+                  <ArrowLeftOutlined />
                 </button>
                 <h2>{projectInfo?.name || '项目分享'}</h2>
               </div>
@@ -504,13 +504,13 @@ function ProjectSharePage() {
             <div className="preview-content-header">
               {isMobile && (
                 <div className="preview-header-leading-actions">
-                  <Tooltip title="关闭">
+                  <Tooltip title="返回">
                     <Button
                       type="text"
-                      icon={<CloseOutlined />}
+                      icon={<ArrowLeftOutlined />}
                       onClick={handleClose}
                       size="small"
-                      aria-label="关闭项目分享"
+                      aria-label="返回"
                     />
                   </Tooltip>
                   <Tooltip title="目录索引">