diff --git a/src/pages/EditMeeting.css b/src/pages/EditMeeting.css
index 04985d3..704c8cc 100644
--- a/src/pages/EditMeeting.css
+++ b/src/pages/EditMeeting.css
@@ -607,4 +607,79 @@
     padding: 0.6rem 1.2rem;
     font-size: 0.9rem;
   }
+}
+
+/* Upload Confirmation Modal */
+.delete-modal-overlay {
+  position: fixed;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  background: rgba(0, 0, 0, 0.5);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  z-index: 1000;
+}
+
+.delete-modal {
+  background: white;
+  border-radius: 12px;
+  padding: 2rem;
+  max-width: 400px;
+  width: 90%;
+  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
+}
+
+.delete-modal h3 {
+  margin: 0 0 1rem 0;
+  color: #1e293b;
+  font-size: 1.25rem;
+}
+
+.delete-modal p {
+  margin: 0 0 2rem 0;
+  color: #64748b;
+  line-height: 1.6;
+}
+
+.modal-actions {
+  display: flex;
+  gap: 1rem;
+  justify-content: flex-end;
+}
+
+.modal-actions .btn-cancel, .modal-actions .btn-submit {
+  padding: 0.5rem 1rem;
+  border-radius: 6px;
+  font-size: 0.9rem;
+  font-weight: 500;
+  cursor: pointer;
+  transition: all 0.3s ease;
+  border: none;
+}
+
+.modal-actions .btn-cancel {
+  background: #f1f5f9;
+  color: #475569;
+}
+
+.modal-actions .btn-cancel:hover {
+  background: #e2e8f0;
+}
+
+.modal-actions .btn-submit {
+  background: #3b82f6;
+  color: white;
+}
+
+.modal-actions .btn-submit:hover:not(:disabled) {
+  background: #2563eb;
+}
+
+.modal-actions .btn-submit:disabled {
+  opacity: 0.7;
+  cursor: not-allowed;
+}
 }
\ No newline at end of file
diff --git a/src/pages/EditMeeting.jsx b/src/pages/EditMeeting.jsx
index d93cde8..c902449 100644
--- a/src/pages/EditMeeting.jsx
+++ b/src/pages/EditMeeting.jsx
@@ -29,6 +29,7 @@ const EditMeeting = ({ user }) => {
   const [error, setError] = useState('');
   const [meeting, setMeeting] = useState(null);
   const [showUploadArea, setShowUploadArea] = useState(false);
+  const [showUploadConfirm, setShowUploadConfirm] = useState(false);
 
   const handleSummaryChange = useCallback((value) => {
     setFormData(prev => ({ ...prev, summary: value || '' }));
@@ -159,10 +160,10 @@ const EditMeeting = ({ user }) => {
     setError('');
 
     try {
-      // Upload new audio file
       const formDataUpload = new FormData();
       formDataUpload.append('audio_file', audioFile);
       formDataUpload.append('meeting_id', meeting_id);
+      formDataUpload.append('force_replace', 'true'); // Always force replace in edit mode
 
       const response = await axios.post(buildApiUrl(API_ENDPOINTS.MEETINGS.UPLOAD_AUDIO), formDataUpload, {
         headers: {
@@ -170,22 +171,16 @@ const EditMeeting = ({ user }) => {
         },
       });
 
-      // Update summary with new AI analysis result
-      if (response.data.summary) {
-        setFormData(prev => ({
-          ...prev,
-          summary: response.data.summary
-        }));
-      }
-
       setAudioFile(null);
       setShowUploadArea(false);
+      setShowUploadConfirm(false);
       // Reset file input
       const fileInput = document.getElementById('audio-file');
       if (fileInput) fileInput.value = '';
       
     } catch (err) {
-      setError('上传音频文件失败，请重试');
+      console.error('Upload error:', err);
+      setError(err.response?.data?.detail || '上传音频文件失败，请重试');
     } finally {
       setIsUploading(false);
     }
@@ -511,7 +506,7 @@ const EditMeeting = ({ user }) => {
                     {audioFile && (
                       <button
                         type="button"
-                        onClick={handleUploadAudio}
+                        onClick={() => setShowUploadConfirm(true)}
                         className="upload-btn"
                         disabled={isUploading}
                       >
@@ -541,7 +536,6 @@ const EditMeeting = ({ user }) => {
                   preview="edit"
                   hideToolbar={false}
                   toolbarBottom={false}
-                  visibleDragBar={false}
                   commands={customCommands}
                   extraCommands={customExtraCommands}
                   autoFocus={false}
@@ -596,6 +590,31 @@ const EditMeeting = ({ user }) => {
           </form>
         </div>
       </div>
+
+      {/* Upload Confirmation Modal */}
+      {showUploadConfirm && (
+        <div className="delete-modal-overlay" onClick={() => setShowUploadConfirm(false)}>
+          <div className="delete-modal" onClick={(e) => e.stopPropagation()}>
+            <h3>确认重新上传</h3>
+            <p>重传音频文件将清空已有的会话转录，是否继续？</p>
+            <div className="modal-actions">
+              <button 
+                className="btn-cancel"
+                onClick={() => setShowUploadConfirm(false)}
+              >
+                取消
+              </button>
+              <button 
+                className="btn-submit"
+                onClick={handleUploadAudio}
+                disabled={isUploading}
+              >
+                确定重传
+              </button>
+            </div>
+          </div>
+        </div>
+      )}
     </div>
   );
 };
diff --git a/src/pages/MeetingDetails.css b/src/pages/MeetingDetails.css
index 140ff22..1ff9533 100644
--- a/src/pages/MeetingDetails.css
+++ b/src/pages/MeetingDetails.css
@@ -330,6 +330,108 @@
   backdrop-filter: blur(10px);
 }
 
+/* 转录状态显示样式 - 一行显示 */
+.transcription-status {
+  margin: 1rem 0;
+  padding: 0.75rem 1rem;
+  background: rgba(255, 255, 255, 0.05);
+  border-radius: 8px;
+  border: 1px solid rgba(255, 255, 255, 0.1);
+}
+
+.status-content-inline {
+  display: flex;
+  align-items: center;
+  gap: 1rem;
+  flex-wrap: wrap;
+}
+
+.status-header-inline {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  font-size: 0.875rem;
+  font-weight: 500;
+  color: rgba(255, 255, 255, 0.9);
+  flex-shrink: 0;
+}
+
+.status-pending-inline,
+.status-processing-inline,
+.status-completed-inline,
+.status-failed-inline {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  font-size: 0.875rem;
+}
+
+.status-processing-inline {
+  gap: 0.75rem;
+}
+
+.status-indicator {
+  width: 8px;
+  height: 8px;
+  border-radius: 50%;
+  animation: pulse 2s infinite;
+}
+
+.status-indicator.pending {
+  background-color: #fbbf24;
+}
+
+.status-indicator.processing {
+  background-color: #3b82f6;
+}
+
+.status-indicator.completed {
+  background-color: #10b981;
+  animation: none;
+}
+
+.status-indicator.failed {
+  background-color: #ef4444;
+  animation: none;
+}
+
+@keyframes pulse {
+  0%, 100% {
+    opacity: 1;
+  }
+  50% {
+    opacity: 0.5;
+  }
+}
+
+.progress-bar-small {
+  width: 80px;
+  height: 4px;
+  background: rgba(255, 255, 255, 0.2);
+  border-radius: 2px;
+  overflow: hidden;
+}
+
+.progress-fill-small {
+  height: 100%;
+  background: linear-gradient(90deg, #3b82f6, #1d4ed8);
+  border-radius: 2px;
+  transition: width 0.3s ease;
+}
+
+.progress-text {
+  font-size: 0.75rem;
+  color: rgba(255, 255, 255, 0.7);
+  min-width: 28px;
+  text-align: right;
+}
+
+.error-message-inline {
+  font-size: 0.75rem;
+  color: #fca5a5;
+  margin-left: 0.25rem;
+}
+
 .player-controls {
   display: flex;
   align-items: center;
@@ -556,7 +658,6 @@
 
 .no-summary-content svg {
   color: #cbd5e1;
-  margin-bottom: 1rem;
 }
 
 .no-summary-content h3 {
@@ -573,17 +674,31 @@
 .generate-summary-cta {
   display: inline-flex;
   align-items: center;
-  gap: 8px;
+  justify-content: center;
+  gap: 6px;
   background: linear-gradient(135deg, #667eea, #764ba2);
   color: white;
   border: none;
-  padding: 12px 20px;
+  padding: 10px 18px;
   border-radius: 8px;
   cursor: pointer;
   font-size: 14px;
   font-weight: 500;
   transition: all 0.2s ease;
   box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
+  min-height: 40px;
+  text-align: left;
+  vertical-align: middle;
+}
+
+.generate-summary-cta svg {
+  flex-shrink: 0;
+  display: block;
+}
+
+.generate-summary-cta span {
+  display: block;
+  line-height: 1.2;
 }
 
 .generate-summary-cta:hover {
@@ -617,6 +732,32 @@
   align-items: center;
 }
 
+.transcript-header h3 {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+}
+
+.auto-scroll-btn {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 4px;
+  border: none;
+  border-radius: 4px;
+  cursor: pointer;
+  transition: opacity 0.2s;
+  background: transparent;
+  color: #64748b;
+  min-width: 24px;
+  height: 24px;
+  margin-left: auto;
+}
+
+.auto-scroll-btn:hover {
+  opacity: 0.7;
+}
+
 .edit-speakers-btn,
 .ai-summary-btn {
   display: flex;
@@ -1132,17 +1273,31 @@
 .generate-summary-btn {
   display: flex;
   align-items: center;
-  gap: 8px;
+  justify-content: center;
+  gap: 6px;
   background: linear-gradient(135deg, #667eea, #764ba2);
   color: white;
   border: none;
-  padding: 12px 20px;
+  padding: 10px 18px;
   border-radius: 8px;
   cursor: pointer;
   font-size: 14px;
   font-weight: 600;
   transition: all 0.2s ease;
   box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
+  min-height: 40px;
+  text-align: left;
+  vertical-align: middle;
+}
+
+.generate-summary-btn svg {
+  flex-shrink: 0;
+  display: block;
+}
+
+.generate-summary-btn span {
+  display: block;
+  line-height: 1.2;
 }
 
 .generate-summary-btn:hover:not(:disabled) {
diff --git a/src/pages/MeetingDetails.jsx b/src/pages/MeetingDetails.jsx
index 4cf1dd4..c330bb3 100644
--- a/src/pages/MeetingDetails.jsx
+++ b/src/pages/MeetingDetails.jsx
@@ -1,7 +1,7 @@
 import React, { useState, useEffect, useRef } from 'react';
 import { useParams, Link, useNavigate } from 'react-router-dom';
 import axios from 'axios';
-import { ArrowLeft, Clock, Users, FileText, User, Calendar, Play, Pause, Volume2, MessageCircle, Edit, Trash2, Settings, Save, X, Edit3, Brain, Sparkles, Download } from 'lucide-react';
+import { ArrowLeft, Clock, Users, FileText, User, Calendar, Play, Pause, Volume2, MessageCircle, Edit, Trash2, Settings, Save, X, Edit3, Brain, Sparkles, Download, ArrowDown, Lock, Unlock } from 'lucide-react';
 import ReactMarkdown from 'react-markdown';
 import remarkGfm from 'remark-gfm';
 import rehypeRaw from 'rehype-raw';
@@ -28,6 +28,10 @@ const MeetingDetails = ({ user }) => {
   const [editingSpeakers, setEditingSpeakers] = useState({});
   const [speakerList, setSpeakerList] = useState([]);
   const [showTranscriptEdit, setShowTranscriptEdit] = useState(false);
+  const [transcriptionStatus, setTranscriptionStatus] = useState(null);
+  const [transcriptionProgress, setTranscriptionProgress] = useState(0);
+  const [statusCheckInterval, setStatusCheckInterval] = useState(null);
+  const [autoScrollEnabled, setAutoScrollEnabled] = useState(false); // 控制自动滚动
   const [editingTranscriptIndex, setEditingTranscriptIndex] = useState(-1);
   const [editingTranscripts, setEditingTranscripts] = useState({});
   const [currentSubtitle, setCurrentSubtitle] = useState('');
@@ -43,7 +47,61 @@ const MeetingDetails = ({ user }) => {
 
   useEffect(() => {
     fetchMeetingDetails();
+    
+    // Cleanup interval on unmount
+    return () => {
+      if (statusCheckInterval) {
+        clearInterval(statusCheckInterval);
+      }
+    };
   }, [meeting_id]);
+  
+  // Cleanup interval when status changes
+  useEffect(() => {
+    if (transcriptionStatus && !['pending', 'processing'].includes(transcriptionStatus.status)) {
+      if (statusCheckInterval) {
+        clearInterval(statusCheckInterval);
+        setStatusCheckInterval(null);
+      }
+    }
+  }, [transcriptionStatus, statusCheckInterval]);
+
+  const startStatusPolling = (taskId) => {
+    // Clear existing interval
+    if (statusCheckInterval) {
+      clearInterval(statusCheckInterval);
+    }
+    
+    // Poll every 3 seconds
+    const interval = setInterval(async () => {
+      try {
+        const baseUrl = "";
+        const statusResponse = await axios.get(`${baseUrl}/api/transcription/tasks/${taskId}/status`);
+        const status = statusResponse.data;
+        
+        setTranscriptionStatus(status);
+        setTranscriptionProgress(status.progress || 0);
+        
+        // Stop polling if task is completed or failed
+        if (['completed', 'failed', 'error', 'cancelled'].includes(status.status)) {
+          clearInterval(interval);
+          setStatusCheckInterval(null);
+          
+          // Refresh meeting details to get updated transcript
+          if (status.status === 'completed') {
+            fetchMeetingDetails();
+          }
+        }
+      } catch (error) {
+        console.error('Failed to fetch transcription status:', error);
+        // Clear interval on error to prevent endless polling
+        clearInterval(interval);
+        setStatusCheckInterval(null);
+      }
+    }, 3000);
+    
+    setStatusCheckInterval(interval);
+  };
 
   const fetchMeetingDetails = async () => {
     try {
@@ -58,6 +116,20 @@ const MeetingDetails = ({ user }) => {
       const response = await axios.get(`${baseUrl}${detailEndpoint}`);
       setMeeting(response.data);
       
+      // Handle transcription status from meeting details
+      if (response.data.transcription_status) {
+        setTranscriptionStatus(response.data.transcription_status);
+        setTranscriptionProgress(response.data.transcription_status.progress || 0);
+        
+        // If transcription is in progress, start polling for updates
+        if (['pending', 'processing'].includes(response.data.transcription_status.status)) {
+          startStatusPolling(response.data.transcription_status.task_id);
+        }
+      } else {
+        setTranscriptionStatus(null);
+        setTranscriptionProgress(0);
+      }
+      
       // Fetch audio file if available
       try {
         const audioResponse = await axios.get(`${baseUrl}${audioEndpoint}`);
@@ -168,8 +240,8 @@ const MeetingDetails = ({ user }) => {
       const currentIndex = transcript.findIndex(item => item.segment_id === currentSegment.segment_id);
       setCurrentHighlightIndex(currentIndex);
       
-      // 滚动到对应的转录条目
-      if (currentIndex !== -1 && transcriptRefs.current[currentIndex]) {
+      // 滚动到对应的转录条目（仅在启用自动滚动时）
+      if (autoScrollEnabled && currentIndex !== -1 && transcriptRefs.current[currentIndex]) {
         transcriptRefs.current[currentIndex].scrollIntoView({
           behavior: 'smooth',
           block: 'center'
@@ -658,6 +730,53 @@ const MeetingDetails = ({ user }) => {
                     您的浏览器不支持音频播放。
                   </audio>
                   
+                  {/* 转录状态显示 */}
+                  {transcriptionStatus && (
+                    <div className="transcription-status">
+                      <div className="status-content-inline">
+                        <div className="status-header-inline">
+                          <Brain size={16} />
+                          <span>语音转录进度：</span>
+                        </div>
+                        {transcriptionStatus.status === 'pending' && (
+                          <div className="status-pending-inline">
+                            <div className="status-indicator pending"></div>
+                            <span>等待处理中...</span>
+                          </div>
+                        )}
+                        {transcriptionStatus.status === 'processing' && (
+                          <div className="status-processing-inline">
+                            <div className="status-indicator processing"></div>
+                            <span>转录进行中</span>
+                            <div className="progress-bar-small">
+                              <div 
+                                className="progress-fill-small" 
+                                style={{ width: `${transcriptionProgress}%` }}
+                              ></div>
+                            </div>
+                            <span className="progress-text">{transcriptionProgress}%</span>
+                          </div>
+                        )}
+                        {transcriptionStatus.status === 'completed' && (
+                          <div className="status-completed-inline">
+                            <div className="status-indicator completed"></div>
+                            <span>转录已完成</span>
+                            <Sparkles size={14} />
+                          </div>
+                        )}
+                        {transcriptionStatus.status === 'failed' && (
+                          <div className="status-failed-inline">
+                            <div className="status-indicator failed"></div>
+                            <span>转录失败</span>
+                            {transcriptionStatus.error_message && (
+                              <span className="error-message-inline">({transcriptionStatus.error_message})</span>
+                            )}
+                          </div>
+                        )}
+                      </div>
+                    </div>
+                  )}
+                  
                   <div className="player-controls">
                     <button className="play-button" onClick={handlePlayPause}>
                       {isPlaying ? <Pause size={24} /> : <Play size={24} />}
@@ -778,7 +897,17 @@ const MeetingDetails = ({ user }) => {
         {/* Transcript Sidebar */}
         <div className="transcript-sidebar">
           <div className="transcript-header">
-            <h3><MessageCircle size={20} /> 对话转录</h3>
+            <h3>
+              <MessageCircle size={20} /> 
+              对话转录
+              <button 
+                className="auto-scroll-btn"
+                onClick={() => setAutoScrollEnabled(!autoScrollEnabled)}
+                title={autoScrollEnabled ? "关闭自动滚动" : "开启自动滚动"}
+              >
+                {autoScrollEnabled ? <Lock size={16} /> : <Unlock size={16} />}
+              </button>
+            </h3>
             <div className="transcript-controls">
               {isCreator && (
                 <>
diff --git a/vite.config.js b/vite.config.js
index 024bdad..c778882 100644
--- a/vite.config.js
+++ b/vite.config.js
@@ -7,7 +7,7 @@ export default defineConfig({
   server: {
     host: true, // Optional: Allows the server to be accessible externally
     port: 5173, // Optional: Specify a port if needed
-    allowedHosts: ['6fc3f0b0.r3.cpolar.cn'], // Add the problematic hostname here
+    allowedHosts: ['imeeting.unisspace.com'], // Add the problematic hostname here
     proxy: {
       '/api': {
         target: 'http://localhost:8000', // 后端服务地址