diff --git a/app/src/admin/pages/DataCheck.tsx b/app/src/admin/pages/DataCheck.tsx
index a3cfd75..d4d9814 100644
--- a/app/src/admin/pages/DataCheck.tsx
+++ b/app/src/admin/pages/DataCheck.tsx
@@ -259,18 +259,12 @@ export default function DataCheck() {
   };
 
   // 计算统计数据（优先使用后端返回的 summary 数据）
-  const completionRate = summary?.completenessRate ?? (dataStatus.length > 0
-    ? Math.round((dataStatus.filter(d => d.status === 'complete').length / dataStatus.length) * 100)
-    : 0);
+  // 新的 summary 格式: { stockCount, quoteCount, klineCount, localLatestDate, externalLatestDate, externalStatus, daysBehind, syncStatus }
+  const completionRate = summary?.syncStatus === 'complete' ? 100 : summary?.syncStatus === 'incomplete' ? 70 : 0;
 
-  const totalMissing = summary?.missingQuotesCount ?? dataStatus.reduce((acc, item) => {
-    if (item.status !== 'complete') {
-      return acc + (item.total - item.current);
-    }
-    return acc;
-  }, 0);
+  const totalMissing = summary?.daysBehind ?? 0;
 
-  const estimatedTime = Math.ceil(totalMissing / 1000); // 估算时间（分钟）
+  const estimatedTime = Math.ceil(totalMissing * 1000); // 估算时间（分钟）
 
   return (
     <div className="space-y-6">
@@ -336,7 +330,7 @@ export default function DataCheck() {
               <p className="text-sm text-[#666] mt-1">
                 {currentTask && (
                   <>
-                    已处理: {currentTask.processedRecords.toLocaleString()} / {currentTask.totalRecords.toLocaleString()}
+                    已处理: {(currentTask.processedRecords || 0).toLocaleString()} / {(currentTask.totalRecords || 0).toLocaleString()}
                   </>
                 )}
               </p>
@@ -473,15 +467,17 @@ export default function DataCheck() {
           >
             <div className="flex items-center justify-between">
               <div>
-                <p className="text-[#b0b0b0] text-sm">数据完整度</p>
-                <p className="text-2xl font-bold text-white mt-1">{summary.completenessRate}%</p>
+                <p className="text-[#b0b0b0] text-sm">数据同步状态</p>
+                <p className="text-2xl font-bold text-white mt-1">
+                  {summary.syncStatus === 'complete' ? '已同步' : summary.syncStatus === 'incomplete' ? '部分同步' : '未同步'}
+                </p>
               </div>
               <div className="w-12 h-12 bg-green-500/20 rounded-xl flex items-center justify-center">
                 <CheckCircle className="w-6 h-6 text-green-400" />
               </div>
             </div>
             <div className="mt-3 h-2 bg-[#2a2a2a] rounded-full overflow-hidden">
-              <div className="h-full bg-green-500 rounded-full transition-all" style={{ width: `${summary.completenessRate}%` }} />
+              <div className="h-full bg-green-500 rounded-full transition-all" style={{ width: `${completionRate}%` }} />
             </div>
           </motion.div>
 
@@ -493,15 +489,15 @@ export default function DataCheck() {
           >
             <div className="flex items-center justify-between">
               <div>
-                <p className="text-[#b0b0b0] text-sm">缺失数据条数</p>
-                <p className="text-2xl font-bold text-white mt-1">{summary.missingQuotesCount.toLocaleString()}</p>
+                <p className="text-[#b0b0b0] text-sm">落后天数</p>
+                <p className="text-2xl font-bold text-white mt-1">{summary.daysBehind ?? '-'} 天</p>
               </div>
               <div className="w-12 h-12 bg-red-500/20 rounded-xl flex items-center justify-center">
                 <AlertCircle className="w-6 h-6 text-red-400" />
               </div>
             </div>
             <p className="text-sm text-[#666] mt-3">
-              {summary.missingQuotesCount > 0 ? '建议执行一键缓冲' : '数据完整无需缓冲'}
+              {summary.daysBehind && summary.daysBehind > 0 ? '建议执行一键缓冲' : '数据已同步'}
             </p>
           </motion.div>
 
@@ -513,15 +509,17 @@ export default function DataCheck() {
           >
             <div className="flex items-center justify-between">
               <div>
-                <p className="text-[#b0b0b0] text-sm">一年内可交易日</p>
-                <p className="text-2xl font-bold text-white mt-1">{summary.tradingDaysCount} 天</p>
+                <p className="text-[#b0b0b0] text-sm">数据源状态</p>
+                <p className="text-2xl font-bold text-white mt-1">
+                  {summary.externalStatus === 'connected' ? '已连接' : summary.externalStatus === 'disabled' ? '未配置' : '异常'}
+                </p>
               </div>
               <div className="w-12 h-12 bg-blue-500/20 rounded-xl flex items-center justify-center">
                 <Calendar className="w-6 h-6 text-blue-400" />
               </div>
             </div>
             <p className="text-sm text-[#666] mt-3">
-              参考日期: {summary.referenceDate}, 当日股票数: {summary.dailyStockCount}只
+              本地: {summary.localLatestDate || '无'}, 数据源: {summary.externalLatestDate || '无'}
             </p>
           </motion.div>
         </div>
@@ -537,28 +535,26 @@ export default function DataCheck() {
           <h3 className="text-white font-semibold mb-4">数据统计详情</h3>
           <div className="grid grid-cols-2 md:grid-cols-4 gap-4">
             <div className="p-3 bg-[#0a0a0a] rounded-lg">
-              <p className="text-[#666] text-xs">预期数据条数</p>
-              <p className="text-white text-lg font-medium">{summary.expectedTotalQuotes.toLocaleString()}</p>
+              <p className="text-[#666] text-xs">股票数量</p>
+              <p className="text-white text-lg font-medium">{(summary.stockCount || 0).toLocaleString()}</p>
             </div>
             <div className="p-3 bg-[#0a0a0a] rounded-lg">
-              <p className="text-[#666] text-xs">实际数据条数</p>
-              <p className="text-white text-lg font-medium">{summary.actualTotalQuotes.toLocaleString()}</p>
+              <p className="text-[#666] text-xs">行情记录数</p>
+              <p className="text-white text-lg font-medium">{(summary.quoteCount || 0).toLocaleString()}</p>
             </div>
             <div className="p-3 bg-[#0a0a0a] rounded-lg">
-              <p className="text-[#666] text-xs">缺失数据条数</p>
-              <p className={`text-lg font-medium ${summary.missingQuotesCount > 0 ? 'text-red-400' : 'text-green-400'}`}>
-                {summary.missingQuotesCount.toLocaleString()}
+              <p className="text-[#666] text-xs">落后天数</p>
+              <p className={`text-lg font-medium ${(summary.daysBehind || 0) > 0 ? 'text-red-400' : 'text-green-400'}`}>
+                {summary.daysBehind ?? '-'} 天
               </p>
             </div>
             <div className="p-3 bg-[#0a0a0a] rounded-lg">
-              <p className="text-[#666] text-xs">数据完整度</p>
-              <p className={`text-lg font-medium ${summary.completenessRate >= 90 ? 'text-green-400' : summary.completenessRate >= 50 ? 'text-yellow-400' : 'text-red-400'}`}>
-                {summary.completenessRate}%
-              </p>
+              <p className="text-[#666] text-xs">K线数据</p>
+              <p className="text-white text-lg font-medium">{(summary.klineCount || 0).toLocaleString()}</p>
             </div>
           </div>
           <p className="text-xs text-[#666] mt-3">
-            * 计算公式: 预期数据 = 单日股票数({summary.dailyStockCount}只) × 可交易日({summary.tradingDaysCount}天) = {summary.expectedTotalQuotes.toLocaleString()}条
+            * 本地最新数据: {summary.localLatestDate || '无'}, 数据源最新: {summary.externalLatestDate || '无'}
           </p>
         </motion.div>
       )}
@@ -635,11 +631,11 @@ export default function DataCheck() {
                           />
                         </div>
                         <span className="text-sm text-[#b0b0b0]">
-                          {((item.current / item.total) * 100).toFixed(1)}%
+                          {item.total > 0 ? ((item.current / item.total) * 100).toFixed(1) : '0.0'}%
                         </span>
                       </div>
                       <p className="text-xs text-[#666] mt-1">
-                        {item.current.toLocaleString()} / {item.total.toLocaleString()}
+                        {(item.current || 0).toLocaleString()} / {(item.total || 0).toLocaleString()}
                       </p>
                     </div>
                     {item.details && (
diff --git a/app/src/admin/pages/DataImport.tsx b/app/src/admin/pages/DataImport.tsx
index 50ee730..bbc1053 100644
--- a/app/src/admin/pages/DataImport.tsx
+++ b/app/src/admin/pages/DataImport.tsx
@@ -320,9 +320,9 @@ export default function DataImport() {
                       <div className="flex items-center gap-4 mt-2 text-xs text-[#666]">
                         <span>{task.createdAt}</span>
                         <span>类型: {task.type}</span>
-                        {task.status !== 'pending' && task.totalRecords > 0 && (
+                        {task.status !== 'pending' && (task.totalRecords || 0) > 0 && (
                           <span>
-                            记录: {task.importedRecords.toLocaleString()} / {task.totalRecords.toLocaleString()}
+                            记录: {(task.importedRecords || 0).toLocaleString()} / {(task.totalRecords || 0).toLocaleString()}
                           </span>
                         )}
                       </div>
diff --git a/app/src/services/adminApi.ts b/app/src/services/adminApi.ts
index 6acacb1..09aa61f 100644
--- a/app/src/services/adminApi.ts
+++ b/app/src/services/adminApi.ts
@@ -78,13 +78,23 @@ export interface DataCheckItem {
 
 // 数据检查结果汇总
 export interface DataCheckSummary {
-  tradingDaysCount: number;
-  referenceDate: string;
-  dailyStockCount: number;
-  expectedTotalQuotes: number;
-  actualTotalQuotes: number;
-  missingQuotesCount: number;
-  completenessRate: number;
+  // 新的数据源对比格式
+  stockCount?: number;
+  quoteCount?: number;
+  klineCount?: number;
+  localLatestDate?: string | null;
+  externalLatestDate?: string | null;
+  externalStatus?: 'connected' | 'disconnected' | 'error' | 'disabled';
+  daysBehind?: number | null;
+  syncStatus?: 'complete' | 'incomplete' | 'missing';
+  // 兼容旧格式
+  tradingDaysCount?: number;
+  referenceDate?: string;
+  dailyStockCount?: number;
+  expectedTotalQuotes?: number;
+  actualTotalQuotes?: number;
+  missingQuotesCount?: number;
+  completenessRate?: number;
 }
 
 // 数据检查响应
@@ -98,13 +108,14 @@ export interface SyncTask {
   id: string;
   type: string;
   status: 'pending' | 'running' | 'completed' | 'failed';
-  progress: number;
-  currentTask: string;
-  totalRecords: number;
-  processedRecords: number;
+  progress?: number;
+  currentTask?: string;
+  totalRecords?: number;
+  processedRecords?: number;
   createdAt: string;
   completedAt?: string;
   error?: string;
+  result?: any;
 }
 
 // 管理员 API