perf(Company): 恢复 CompanyContent 的 memo 包装

- 将主内容区提取为独立的 memo 包装组件
- 避免父组件状态变化导致不必要的重渲染
- 提升页面性能

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

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

src/views/Company/index.tsx

@@ -24,6 +24,52 @@ import CompanyHeader from './components/CompanyHeader';
 import StockQuoteCard from './components/StockQuoteCard';
 import { THEME, TAB_CONFIG } from './config';
 
+// ============================================
+// 主内容区组件 - FUI 风格
+// ============================================
+
+interface CompanyContentProps {
+  stockCode: string;
+  isInWatchlist: boolean;
+  watchlistLoading: boolean;
+  onWatchlistToggle: () => void;
+  onTabChange: (index: number, tabKey: string) => void;
+}
+
+const CompanyContent = memo<CompanyContentProps>(({
+  stockCode,
+  isInWatchlist,
+  watchlistLoading,
+  onWatchlistToggle,
+  onTabChange,
+}) => (
+  <Box maxW="container.xl" mx="auto" px={4} py={6}>
+    {/* 股票行情卡片 - 放在 Tab 切换器上方，始终可见 */}
+    <Box mb={6}>
+      <StockQuoteCard
+        stockCode={stockCode}
+        isInWatchlist={isInWatchlist}
+        isWatchlistLoading={watchlistLoading}
+        onWatchlistToggle={onWatchlistToggle}
+      />
+    </Box>
+
+    {/* Tab 内容区 - 使用 FuiContainer */}
+    <FuiContainer variant="default">
+      <SubTabContainer
+        tabs={TAB_CONFIG}
+        componentProps={{ stockCode }}
+        onTabChange={onTabChange}
+        themePreset="blackGold"
+        contentPadding={0}
+        isLazy={true}
+      />
+    </FuiContainer>
+  </Box>
+));
+
+CompanyContent.displayName = 'CompanyContent';
+
 // ============================================
 // 主页面组件
 // ============================================
@@ -116,29 +162,13 @@ const CompanyIndex: React.FC = () => {
 
       {/* 主内容区 */}
       <Box position="relative" zIndex={1}>
-        <Box maxW="container.xl" mx="auto" px={4} py={6}>
-          {/* 股票行情卡片 - 放在 Tab 切换器上方，始终可见 */}
-          <Box mb={6}>
-            <StockQuoteCard
-              stockCode={stockCode}
-              isInWatchlist={isInWatchlist}
-              isWatchlistLoading={watchlistLoading}
-              onWatchlistToggle={handleWatchlistToggle}
-            />
-          </Box>
-
-          {/* Tab 内容区 - 使用 FuiContainer */}
-          <FuiContainer variant="default">
-            <SubTabContainer
-              tabs={TAB_CONFIG}
-              componentProps={{ stockCode }}
-              onTabChange={handleTabChange}
-              themePreset="blackGold"
-              contentPadding={0}
-              isLazy={true}
-            />
-          </FuiContainer>
-        </Box>
+        <CompanyContent
+          stockCode={stockCode}
+          isInWatchlist={isInWatchlist}
+          watchlistLoading={watchlistLoading}
+          onWatchlistToggle={handleWatchlistToggle}
+          onTabChange={handleTabChange}
+        />
       </Box>
     </Box>
   );