diff --git a/backend/app/core/middleware.py b/backend/app/core/middleware.py
index 7d2a1bd..a987219 100644
--- a/backend/app/core/middleware.py
+++ b/backend/app/core/middleware.py
@@ -14,23 +14,23 @@ class TerminalCheckMiddleware(BaseHTTPMiddleware):
 
         # 2. 检查时间戳 (防重放/时钟同步)
         # 优先从Header获取，如果没有则尝试从Query Parameter获取
-        # client_time_str = request.headers.get("time") or request.query_params.get("time")
+        client_time_str = request.headers.get("time") or request.query_params.get("time")
         
-        # if client_time_str:
-        #     try:
-        #         client_time = int(client_time_str)
-        #         server_time = int(time.time() * 1000)
+        if client_time_str:
+            try:
+                client_time = int(client_time_str)
+                server_time = int(time.time() * 1000)
                 
-        #         # 允许 10 分钟的误差 (10 * 60 * 1000 = 600000 ms)
-        #         # 考虑到网络延迟和设备时间未校准，设置宽松一点
-        #         if abs(server_time - client_time) > 600000:
-        #             return create_api_response(
-        #                 code="400",
-        #                 message="设备时间与服务器时间差距过大，请校准时间"
-        #             )
-        #     except ValueError:
-        #         # 时间格式错误，暂时忽略或返回错误
-        #         pass
+                # 允许 10 分钟的误差 (10 * 60 * 1000 = 600000 ms)
+                # 考虑到网络延迟和设备时间未校准，设置宽松一点
+                if abs(server_time - client_time) > 600000:
+                    return create_api_response(
+                        code="400",
+                        message="设备时间与服务器时间差距过大，请校准时间"
+                    )
+            except ValueError:
+                # 时间格式错误，暂时忽略或返回错误
+                pass
 
         # 3. 提取其他设备信息
         device_type = request.headers.get("deviceType", "UNKNOWN")
diff --git a/frontend/src/pages/AdminDashboard.jsx b/frontend/src/pages/AdminDashboard.jsx
index a41b3da..131953a 100644
--- a/frontend/src/pages/AdminDashboard.jsx
+++ b/frontend/src/pages/AdminDashboard.jsx
@@ -1,5 +1,5 @@
 import React, { useState, useEffect } from 'react';
-import { LogOut, User, Users, Activity, Server, HardDrive, Cpu, MemoryStick, RefreshCw, UserX, ChevronDown, KeyRound, Shield, BookText, Waves, UserCog, Search } from 'lucide-react';
+import { LogOut, User, Users, Activity, Server, HardDrive, Cpu, MemoryStick, RefreshCw, UserX, ChevronDown, KeyRound, Shield, BookText, Waves, UserCog, Search, FileJson } from 'lucide-react';
 import apiClient from '../utils/apiClient';
 import { buildApiUrl, API_ENDPOINTS } from '../config/api';
 import Dropdown from '../components/Dropdown';
@@ -264,6 +264,28 @@ const AdminDashboard = ({ user, onLogout }) => {
     }
   };
 
+  const handleDownloadTranscript = async (meetingId) => {
+    try {
+      const response = await apiClient.get(buildApiUrl(`/api/meetings/${meetingId}/transcript`));
+      if (response.code === '200') {
+        const dataStr = JSON.stringify(response.data, null, 2);
+        const blob = new Blob([dataStr], { type: "application/json" });
+        const url = URL.createObjectURL(blob);
+        const link = document.createElement('a');
+        link.href = url;
+        link.download = `transcript_${meetingId}.json`;
+        document.body.appendChild(link);
+        link.click();
+        document.body.removeChild(link);
+      } else {
+        showToast('获取转录数据失败', 'error');
+      }
+    } catch (err) {
+      console.error('Download transcript error:', err);
+      showToast('下载失败', 'error');
+    }
+  };
+
   if (loading && !stats) {
     return <PageLoading message="加载中..." />;
   }
@@ -690,6 +712,32 @@ const AdminDashboard = ({ user, onLogout }) => {
                 )}
               </div>
             </div>
+            
+            {/* 转录结果下载 */}
+            <div className="detail-item">
+              <span className="detail-label">转录结果:</span>
+              <div className="detail-value">
+                <button 
+                  type="button"
+                  onClick={() => handleDownloadTranscript(meetingDetails.meeting_id)}
+                  style={{ 
+                    background: 'none', 
+                    border: 'none', 
+                    padding: 0, 
+                    color: '#3b82f6', 
+                    textDecoration: 'underline', 
+                    cursor: 'pointer',
+                    display: 'flex',
+                    alignItems: 'center',
+                    gap: '4px',
+                    fontSize: 'inherit'
+                  }}
+                >
+                  <FileJson size={14} />
+                  下载JSON
+                </button>
+              </div>
+            </div>
           </div>
         ) : (
           <div className="empty-state">无法加载数据</div>
diff --git a/frontend/src/pages/MeetingDetails.css b/frontend/src/pages/MeetingDetails.css
index 428f8b0..bd68da2 100644
--- a/frontend/src/pages/MeetingDetails.css
+++ b/frontend/src/pages/MeetingDetails.css
@@ -537,6 +537,7 @@
   border-radius: 12px;
   padding: 1.5rem;
   backdrop-filter: blur(10px);
+  min-height: 200px; /* Prevent layout shift */
 }
 
 /* 转录状态显示样式 - 一行显示 */