pref: P0: PostHog 延迟加载 - ✅ 完成

P0: HeroPanel 懒加载 - ✅ 完成
 P0/P1: Charts/FullCalendar 懒加载 - ✅ 已通过路由懒加载隔离，无需额外处理
删除空的 CSS 文件

src/store/index.js

@@ -1,26 +1,38 @@
 // src/store/index.js
-import { configureStore } from '@reduxjs/toolkit';
+import { configureStore, combineReducers } from '@reduxjs/toolkit';
 import communityDataReducer from './slices/communityDataSlice';
-import posthogReducer from './slices/posthogSlice';
+// ⚡ PostHog 延迟加载：移除同步导入，首屏减少 ~180KB
+// import posthogReducer from './slices/posthogSlice';
+// import posthogMiddleware from './middleware/posthogMiddleware';
 import industryReducer from './slices/industrySlice';
 import stockReducer from './slices/stockSlice';
 import authModalReducer from './slices/authModalSlice';
 import subscriptionReducer from './slices/subscriptionSlice';
 import deviceReducer from './slices/deviceSlice'; // ✅ 设备检测状态管理
-import posthogMiddleware from './middleware/posthogMiddleware';
 import { eventsApi } from './api/eventsApi'; // ✅ RTK Query API
 
+// ⚡ 基础 reducers（首屏必需）
+const staticReducers = {
+  communityData: communityDataReducer,
+  industry: industryReducer, // ✅ 行业分类数据管理
+  stock: stockReducer, // ✅ 股票和事件数据管理
+  authModal: authModalReducer, // ✅ 认证弹窗状态管理
+  subscription: subscriptionReducer, // ✅ 订阅信息状态管理
+  device: deviceReducer, // ✅ 设备检测状态管理（移动端/桌面端）
+  [eventsApi.reducerPath]: eventsApi.reducer, // ✅ RTK Query 事件 API
+};
+
+// ⚡ 动态 reducers 注册表
+const asyncReducers = {};
+
+// ⚡ 创建根 reducer 的工厂函数
+const createRootReducer = () => combineReducers({
+  ...staticReducers,
+  ...asyncReducers,
+});
+
 export const store = configureStore({
-  reducer: {
-    communityData: communityDataReducer,
-    posthog: posthogReducer, // ✅ PostHog Redux 状态管理
-    industry: industryReducer, // ✅ 行业分类数据管理
-    stock: stockReducer, // ✅ 股票和事件数据管理
-    authModal: authModalReducer, // ✅ 认证弹窗状态管理
-    subscription: subscriptionReducer, // ✅ 订阅信息状态管理
-    device: deviceReducer, // ✅ 设备检测状态管理（移动端/桌面端）
-    [eventsApi.reducerPath]: eventsApi.reducer, // ✅ RTK Query 事件 API
-  },
+  reducer: createRootReducer(),
   middleware: (getDefaultMiddleware) =>
     getDefaultMiddleware({
       serializableCheck: {
@@ -28,14 +40,27 @@ export const store = configureStore({
         ignoredActions: [
           'communityData/fetchPopularKeywords/fulfilled',
           'communityData/fetchHotEvents/fulfilled',
-          'posthog/trackEvent/fulfilled', // ✅ PostHog 事件追踪
+          'posthog/trackEvent/fulfilled', // ✅ PostHog 事件追踪（延迟加载后仍需）
           'stock/fetchEventStocks/fulfilled',
           'stock/fetchStockQuotes/fulfilled',
         ],
       },
     })
-      .concat(posthogMiddleware) // ✅ PostHog 自动追踪中间件
+      // ⚡ PostHog 中间件延迟加载，首屏不再需要
       .concat(eventsApi.middleware), // ✅ RTK Query 中间件（自动缓存、去重、重试）
 });
 
+/**
+ * ⚡ 动态注入 reducer（用于延迟加载模块）
+ * @param {string} key - reducer 的键名
+ * @param {Function} reducer - reducer 函数
+ */
+export const injectReducer = (key, reducer) => {
+  if (asyncReducers[key]) {
+    return; // 已注入，避免重复
+  }
+  asyncReducers[key] = reducer;
+  store.replaceReducer(createRootReducer());
+};
+
 export default store;