fix(FinancialPanorama): 优化期数切换和数据加载

- Tab 切换时检查期数是否一致，不一致则重新加载
- 股票切换时立即清空旧数据，确保显示骨架屏
- 表格右上角显示当前期数

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/views/Company/components/FinancialPanorama/components/UnifiedFinancialTable.tsx

@@ -345,6 +345,12 @@ const UnifiedFinancialTableInner: React.FC<UnifiedFinancialTableProps> = ({
   return (
     <Box className={TABLE_CLASS_NAME}>
       <style>{extendedTableStyles}</style>
+      {/* 右上角显示期数标签 */}
+      <HStack justify="flex-end" mb={1}>
+        <Text fontSize="2xs" color="gray.500">
+          显示 {displayData.length} 期
+        </Text>
+      </HStack>
       <ConfigProvider theme={BLACK_GOLD_TABLE_THEME}>
         <Table
           columns={columns}

src/views/Company/components/FinancialPanorama/hooks/useFinancialData.ts

@@ -62,6 +62,7 @@ interface UseFinancialDataReturn {
   setStockCode: (code: string) => void;
   setSelectedPeriods: (periods: number) => void;
   setActiveTab: (tabKey: DataTypeKey) => void;
+  handleTabChange: (tabKey: DataTypeKey) => void; // Tab 切换时自动检查期数
 
   // 当前参数
   currentStockCode: string;
@@ -140,22 +141,34 @@ export const useFinancialData = (
       switch (dataType) {
         case 'balance': {
           const res = await financialService.getBalanceSheet(stockCode, periods, options);
-          if (res.success) setBalanceSheet(res.data);
+          if (res.success) {
+            setBalanceSheet(res.data);
+            dataPeriodsRef.current.balance = periods;
+          }
           break;
         }
         case 'income': {
           const res = await financialService.getIncomeStatement(stockCode, periods, options);
-          if (res.success) setIncomeStatement(res.data);
+          if (res.success) {
+            setIncomeStatement(res.data);
+            dataPeriodsRef.current.income = periods;
+          }
           break;
         }
         case 'cashflow': {
           const res = await financialService.getCashflow(stockCode, periods, options);
-          if (res.success) setCashflow(res.data);
+          if (res.success) {
+            setCashflow(res.data);
+            dataPeriodsRef.current.cashflow = periods;
+          }
           break;
         }
         case 'metrics': {
           const res = await financialService.getFinancialMetrics(stockCode, periods, options);
-          if (res.success) setFinancialMetrics(res.data);
+          if (res.success) {
+            setFinancialMetrics(res.data);
+            dataPeriodsRef.current.metrics = periods;
+          }
           break;
         }
       }
@@ -205,6 +218,17 @@ export const useFinancialData = (
     setSelectedPeriodsState(periods);
   }, []);
 
+  // Tab 切换处理：检查期数是否需要重新加载
+  const handleTabChange = useCallback((tabKey: DataTypeKey) => {
+    setActiveTab(tabKey);
+    const dataType = getDataTypeForTab(tabKey);
+    // 如果该 Tab 数据的期数与当前选择的期数不一致，重新加载
+    // 注：refetchByTab 使用传入的 tabKey，不依赖 activeTab 状态，无需延迟
+    if (dataPeriodsRef.current[dataType] !== selectedPeriods) {
+      refetchByTab(tabKey);
+    }
+  }, [selectedPeriods, refetchByTab]);
+
   // 加载核心财务数据（初始加载：stockInfo + metrics + comparison）
   const loadCoreFinancialData = useCallback(async () => {
     if (!stockCode || stockCode.length !== 6) {
@@ -243,7 +267,10 @@ export const useFinancialData = (
 
       // 设置数据
       if (stockInfoRes.success) setStockInfo(stockInfoRes.data);
-      if (metricsRes.success) setFinancialMetrics(metricsRes.data);
+      if (metricsRes.success) {
+        setFinancialMetrics(metricsRes.data);
+        dataPeriodsRef.current.metrics = selectedPeriods;
+      }
       if (comparisonRes.success) setComparison(comparisonRes.data);
       if (businessRes.success) setMainBusiness(businessRes.data);
 
@@ -277,6 +304,23 @@ export const useFinancialData = (
   // 初始加载（仅股票代码变化时全量加载）
   useEffect(() => {
     if (stockCode) {
+      // 立即清空所有旧数据，触发骨架屏
+      setStockInfo(null);
+      setBalanceSheet([]);
+      setIncomeStatement([]);
+      setCashflow([]);
+      setFinancialMetrics([]);
+      setMainBusiness(null);
+      setComparison([]);
+
+      // 重置期数记录
+      dataPeriodsRef.current = {
+        balance: 0,
+        income: 0,
+        cashflow: 0,
+        metrics: 0,
+      };
+
       loadAllFinancialData();
       isInitialLoad.current = false;
     }
@@ -319,6 +363,7 @@ export const useFinancialData = (
     setStockCode,
     setSelectedPeriods,
     setActiveTab,
+    handleTabChange,
 
     // 当前参数
     currentStockCode: stockCode,

src/views/Company/components/FinancialPanorama/index.tsx

@@ -90,15 +90,15 @@ const FinancialPanorama: React.FC<FinancialPanoramaProps> = ({ stockCode: propSt
     refetchByTab,
     selectedPeriods,
     setSelectedPeriods,
-    setActiveTab,
+    handleTabChange: handleTabChangeWithPeriodCheck,
     activeTab,
   } = useFinancialData({ stockCode: propStockCode });
 
-  // 处理 Tab 切换
+  // 处理 Tab 切换（使用 hook 提供的带期数检查的函数）
   const handleTabChange = useCallback((index: number, tabKey: string) => {
     const dataTypeKey = TAB_KEY_MAP[index] || (tabKey as DataTypeKey);
-    setActiveTab(dataTypeKey);
-  }, [setActiveTab]);
+    handleTabChangeWithPeriodCheck(dataTypeKey);
+  }, [handleTabChangeWithPeriodCheck]);
 
   // 处理刷新 - 只刷新当前 Tab
   const handleRefresh = useCallback(() => {