diff --git a/client/src/components/common/RoutePageFallback.tsx b/client/src/components/common/RoutePageFallback.tsx
new file mode 100644
index 00000000..9e6f82fc
--- /dev/null
+++ b/client/src/components/common/RoutePageFallback.tsx
@@ -0,0 +1,12 @@
+import { Spinner } from "../ui/spinner";
+
+export function RoutePageFallback() {
+  return (
+    <div className="flex min-h-[40vh] items-center justify-center">
+      <div className="card-std flex items-center gap-3 px-4 py-3 text-sm text-zinc-500">
+        <Spinner size="sm" />
+        <span>页面加载中...</span>
+      </div>
+    </div>
+  );
+}
diff --git a/client/src/router/index.tsx b/client/src/router/index.tsx
index 50d2f9fd..92f697b9 100644
--- a/client/src/router/index.tsx
+++ b/client/src/router/index.tsx
@@ -1,38 +1,46 @@
+import { Suspense, type ReactNode } from "react";
 import { Navigate, Route, Routes } from "react-router-dom";
 import { AppShellLayout } from "../layouts/AppShellLayout";
 import { AuthLayout } from "../layouts/AuthLayout";
-import { AuditLogsPage } from "../pages/AuditLogsPage";
-import { ApprovalRulesPage } from "../pages/ApprovalRulesPage";
-import { FeatureFlagsPage } from "../pages/FeatureFlagsPage";
-import { ChangePasswordPage } from "../pages/ChangePasswordPage";
 import { BudgetsPage } from "../pages/BudgetsPage";
+import { ChangePasswordPage } from "../pages/ChangePasswordPage";
 import { DashboardPage } from "../pages/DashboardPage";
-import { DepartmentsPage } from "../pages/DepartmentsPage";
-import { MasterDataPage } from "../pages/MasterDataPage";
-import { DelegationsPage } from "../pages/DelegationsPage";
 import { ForbiddenPage } from "../pages/ForbiddenPage";
-import { MobileApprovalsPage } from "../pages/MobileApprovalsPage";
-import { MobileAssetScanPage } from "../pages/MobileAssetScanPage";
-import { MobileCapturePage } from "../pages/MobileCapturePage";
-import { InvoicePoolPage } from "../pages/InvoicePoolPage";
 import { LoginPage } from "../pages/LoginPage";
-import { LeaveRequestPage } from "../pages/LeaveRequestPage";
-import { NotificationsPage } from "../pages/NotificationsPage";
-import { NotificationChannelsPage } from "../pages/NotificationChannelsPage";
-import { ErpIntegrationPage } from "../pages/ErpIntegrationPage";
-import { PurchaseRequestsPage } from "../pages/PurchaseRequestsPage";
-import { TravelRequestsPage } from "../pages/TravelRequestsPage";
-import { AssetRegistryPage } from "../pages/AssetRegistryPage";
-import { InventoryChecksPage } from "../pages/InventoryChecksPage";
 import { NotFoundPage } from "../pages/NotFoundPage";
 import { ProfilePage } from "../pages/ProfilePage";
-import { ReimbursementDetailPage } from "../pages/ReimbursementDetailPage";
-import { ReimbursementsPage } from "../pages/ReimbursementsPage";
-import { UserManagementPage } from "../pages/UserManagementPage";
-import { WorkflowTaskDetailPage } from "../pages/WorkflowTaskDetailPage";
-import { WorkflowTasksPage } from "../pages/WorkflowTasksPage";
+import { RoutePageFallback } from "../components/common/RoutePageFallback";
+import {
+  ApprovalRulesPage,
+  AssetRegistryPage,
+  AuditLogsPage,
+  DelegationsPage,
+  DepartmentsPage,
+  ErpIntegrationPage,
+  FeatureFlagsPage,
+  InventoryChecksPage,
+  InvoicePoolPage,
+  LeaveRequestPage,
+  MasterDataPage,
+  MobileApprovalsPage,
+  MobileAssetScanPage,
+  MobileCapturePage,
+  NotificationChannelsPage,
+  NotificationsPage,
+  PurchaseRequestsPage,
+  ReimbursementDetailPage,
+  ReimbursementsPage,
+  TravelRequestsPage,
+  UserManagementPage,
+  WorkflowTaskDetailPage,
+  WorkflowTasksPage,
+} from "./lazy";
 import { GuestOnly, RequireAuth, RequirePermission } from "./guards";
 
+function withRouteFallback(node: ReactNode) {
+  return <Suspense fallback={<RoutePageFallback />}>{node}</Suspense>;
+}
+
 export function AppRouter() {
   return (
     <Routes>
@@ -82,7 +90,7 @@ export function AppRouter() {
           path="reimbursements"
           element={
             <RequirePermission anyOf={["expense.view_own", "expense.view_all"]}>
-              <ReimbursementsPage />
+              {withRouteFallback(<ReimbursementsPage />)}
             </RequirePermission>
           }
         />
@@ -91,7 +99,7 @@ export function AppRouter() {
           path="reimbursements/:reimbursementId"
           element={
             <RequirePermission anyOf={["expense.view_own", "expense.view_all"]}>
-              <ReimbursementDetailPage />
+              {withRouteFallback(<ReimbursementDetailPage />)}
             </RequirePermission>
           }
         />
@@ -100,7 +108,7 @@ export function AppRouter() {
           path="leave-requests"
           element={
             <RequirePermission anyOf={["leave.view_own", "leave.view_all"]}>
-              <LeaveRequestPage />
+              {withRouteFallback(<LeaveRequestPage />)}
             </RequirePermission>
           }
         />
@@ -109,7 +117,7 @@ export function AppRouter() {
           path="purchase-requests"
           element={
             <RequirePermission anyOf={["procurement.create", "procurement.view_own", "procurement.view_all", "procurement.manage"]}>
-              <PurchaseRequestsPage />
+              {withRouteFallback(<PurchaseRequestsPage />)}
             </RequirePermission>
           }
         />
@@ -118,7 +126,7 @@ export function AppRouter() {
           path="travel-requests"
           element={
             <RequirePermission anyOf={["travel.create", "travel.view_own", "travel.view_all", "travel.manage", "travel.payment.manage", "integration.manage"]}>
-              <TravelRequestsPage />
+              {withRouteFallback(<TravelRequestsPage />)}
             </RequirePermission>
           }
         />
@@ -127,7 +135,7 @@ export function AppRouter() {
           path="assets"
           element={
             <RequirePermission anyOf={["asset.view_own", "asset.view_all", "asset.manage", "asset.transfer", "asset.inventory"]}>
-              <AssetRegistryPage />
+              {withRouteFallback(<AssetRegistryPage />)}
             </RequirePermission>
           }
         />
@@ -136,7 +144,7 @@ export function AppRouter() {
           path="inventory-checks"
           element={
             <RequirePermission anyOf={["asset.inventory"]}>
-              <InventoryChecksPage />
+              {withRouteFallback(<InventoryChecksPage />)}
             </RequirePermission>
           }
         />
@@ -145,7 +153,7 @@ export function AppRouter() {
           path="workflow/tasks"
           element={
             <RequirePermission anyOf={["expense.approve", "leave.approve", "procurement.approve", "travel.approve"]}>
-              <WorkflowTasksPage />
+              {withRouteFallback(<WorkflowTasksPage />)}
             </RequirePermission>
           }
         />
@@ -154,7 +162,7 @@ export function AppRouter() {
           path="workflow/tasks/:taskId"
           element={
             <RequirePermission anyOf={["expense.approve", "leave.approve", "procurement.approve", "travel.approve"]}>
-              <WorkflowTaskDetailPage />
+              {withRouteFallback(<WorkflowTaskDetailPage />)}
             </RequirePermission>
           }
         />
@@ -163,7 +171,7 @@ export function AppRouter() {
           path="invoice-pool"
           element={
             <RequirePermission anyOf={["invoice.upload", "invoice.view_own", "invoice.manage"]}>
-              <InvoicePoolPage />
+              {withRouteFallback(<InvoicePoolPage />)}
             </RequirePermission>
           }
         />
@@ -172,7 +180,7 @@ export function AppRouter() {
           path="mobile/capture"
           element={
             <RequirePermission anyOf={["invoice.upload", "invoice.manage"]}>
-              <MobileCapturePage />
+              {withRouteFallback(<MobileCapturePage />)}
             </RequirePermission>
           }
         />
@@ -181,7 +189,7 @@ export function AppRouter() {
           path="mobile/assets/scan"
           element={
             <RequirePermission anyOf={["asset.view_own", "asset.view_all", "asset.manage", "asset.transfer", "asset.inventory"]}>
-              <MobileAssetScanPage />
+              {withRouteFallback(<MobileAssetScanPage />)}
             </RequirePermission>
           }
         />
@@ -190,18 +198,18 @@ export function AppRouter() {
           path="mobile/approvals"
           element={
             <RequirePermission anyOf={["expense.approve", "leave.approve", "procurement.approve", "travel.approve"]}>
-              <MobileApprovalsPage />
+              {withRouteFallback(<MobileApprovalsPage />)}
             </RequirePermission>
           }
         />
 
-        <Route path="notifications" element={<NotificationsPage />} />
+        <Route path="notifications" element={withRouteFallback(<NotificationsPage />)} />
 
         <Route
           path="audit-logs"
           element={
             <RequirePermission anyOf={["system.audit.view"]}>
-              <AuditLogsPage />
+              {withRouteFallback(<AuditLogsPage />)}
             </RequirePermission>
           }
         />
@@ -210,7 +218,7 @@ export function AppRouter() {
           path="delegations"
           element={
             <RequirePermission anyOf={["expense.proxy_manage"]}>
-              <DelegationsPage />
+              {withRouteFallback(<DelegationsPage />)}
             </RequirePermission>
           }
         />
@@ -219,7 +227,7 @@ export function AppRouter() {
           path="system/users"
           element={
             <RequirePermission anyOf={["system.users"]}>
-              <UserManagementPage />
+              {withRouteFallback(<UserManagementPage />)}
             </RequirePermission>
           }
         />
@@ -228,7 +236,7 @@ export function AppRouter() {
           path="system/departments"
           element={
             <RequirePermission anyOf={["system.users"]}>
-              <DepartmentsPage />
+              {withRouteFallback(<DepartmentsPage />)}
             </RequirePermission>
           }
         />
@@ -237,7 +245,7 @@ export function AppRouter() {
           path="system/master-data"
           element={
             <RequirePermission anyOf={["masterdata.view", "masterdata.manage"]}>
-              <MasterDataPage />
+              {withRouteFallback(<MasterDataPage />)}
             </RequirePermission>
           }
         />
@@ -246,7 +254,7 @@ export function AppRouter() {
           path="system/notification-channels"
           element={
             <RequirePermission anyOf={["notification.channel.manage"]}>
-              <NotificationChannelsPage />
+              {withRouteFallback(<NotificationChannelsPage />)}
             </RequirePermission>
           }
         />
@@ -255,7 +263,7 @@ export function AppRouter() {
           path="system/integrations/erp"
           element={
             <RequirePermission anyOf={["integration.manage"]}>
-              <ErpIntegrationPage />
+              {withRouteFallback(<ErpIntegrationPage />)}
             </RequirePermission>
           }
         />
@@ -264,7 +272,7 @@ export function AppRouter() {
           path="system/approval-rules"
           element={
             <RequirePermission anyOf={["system.settings"]}>
-              <ApprovalRulesPage />
+              {withRouteFallback(<ApprovalRulesPage />)}
             </RequirePermission>
           }
         />
@@ -273,7 +281,7 @@ export function AppRouter() {
           path="system/feature-flags"
           element={
             <RequirePermission anyOf={["system.settings"]}>
-              <FeatureFlagsPage />
+              {withRouteFallback(<FeatureFlagsPage />)}
             </RequirePermission>
           }
         />
diff --git a/client/src/router/lazy/ApprovalRulesPage.ts b/client/src/router/lazy/ApprovalRulesPage.ts
new file mode 100644
index 00000000..6b1efb0e
--- /dev/null
+++ b/client/src/router/lazy/ApprovalRulesPage.ts
@@ -0,0 +1 @@
+export { ApprovalRulesPage as default } from "../../pages/ApprovalRulesPage";
diff --git a/client/src/router/lazy/AssetRegistryPage.ts b/client/src/router/lazy/AssetRegistryPage.ts
new file mode 100644
index 00000000..07d90d57
--- /dev/null
+++ b/client/src/router/lazy/AssetRegistryPage.ts
@@ -0,0 +1 @@
+export { AssetRegistryPage as default } from "../../pages/AssetRegistryPage";
diff --git a/client/src/router/lazy/AuditLogsPage.ts b/client/src/router/lazy/AuditLogsPage.ts
new file mode 100644
index 00000000..d9b731e0
--- /dev/null
+++ b/client/src/router/lazy/AuditLogsPage.ts
@@ -0,0 +1 @@
+export { AuditLogsPage as default } from "../../pages/AuditLogsPage";
diff --git a/client/src/router/lazy/DelegationsPage.ts b/client/src/router/lazy/DelegationsPage.ts
new file mode 100644
index 00000000..f4c9efa5
--- /dev/null
+++ b/client/src/router/lazy/DelegationsPage.ts
@@ -0,0 +1 @@
+export { DelegationsPage as default } from "../../pages/DelegationsPage";
diff --git a/client/src/router/lazy/DepartmentsPage.ts b/client/src/router/lazy/DepartmentsPage.ts
new file mode 100644
index 00000000..2bbf3468
--- /dev/null
+++ b/client/src/router/lazy/DepartmentsPage.ts
@@ -0,0 +1 @@
+export { DepartmentsPage as default } from "../../pages/DepartmentsPage";
diff --git a/client/src/router/lazy/ErpIntegrationPage.ts b/client/src/router/lazy/ErpIntegrationPage.ts
new file mode 100644
index 00000000..fb3891ce
--- /dev/null
+++ b/client/src/router/lazy/ErpIntegrationPage.ts
@@ -0,0 +1 @@
+export { ErpIntegrationPage as default } from "../../pages/ErpIntegrationPage";
diff --git a/client/src/router/lazy/FeatureFlagsPage.ts b/client/src/router/lazy/FeatureFlagsPage.ts
new file mode 100644
index 00000000..2b0ab4a9
--- /dev/null
+++ b/client/src/router/lazy/FeatureFlagsPage.ts
@@ -0,0 +1 @@
+export { FeatureFlagsPage as default } from "../../pages/FeatureFlagsPage";
diff --git a/client/src/router/lazy/InventoryChecksPage.ts b/client/src/router/lazy/InventoryChecksPage.ts
new file mode 100644
index 00000000..0be2157f
--- /dev/null
+++ b/client/src/router/lazy/InventoryChecksPage.ts
@@ -0,0 +1 @@
+export { InventoryChecksPage as default } from "../../pages/InventoryChecksPage";
diff --git a/client/src/router/lazy/InvoicePoolPage.ts b/client/src/router/lazy/InvoicePoolPage.ts
new file mode 100644
index 00000000..ee8b0167
--- /dev/null
+++ b/client/src/router/lazy/InvoicePoolPage.ts
@@ -0,0 +1 @@
+export { InvoicePoolPage as default } from "../../pages/InvoicePoolPage";
diff --git a/client/src/router/lazy/LeaveRequestPage.ts b/client/src/router/lazy/LeaveRequestPage.ts
new file mode 100644
index 00000000..975e6db1
--- /dev/null
+++ b/client/src/router/lazy/LeaveRequestPage.ts
@@ -0,0 +1 @@
+export { LeaveRequestPage as default } from "../../pages/LeaveRequestPage";
diff --git a/client/src/router/lazy/MasterDataPage.ts b/client/src/router/lazy/MasterDataPage.ts
new file mode 100644
index 00000000..9d0f3d0d
--- /dev/null
+++ b/client/src/router/lazy/MasterDataPage.ts
@@ -0,0 +1 @@
+export { MasterDataPage as default } from "../../pages/MasterDataPage";
diff --git a/client/src/router/lazy/MobileApprovalsPage.ts b/client/src/router/lazy/MobileApprovalsPage.ts
new file mode 100644
index 00000000..bd70cf7f
--- /dev/null
+++ b/client/src/router/lazy/MobileApprovalsPage.ts
@@ -0,0 +1 @@
+export { MobileApprovalsPage as default } from "../../pages/MobileApprovalsPage";
diff --git a/client/src/router/lazy/MobileAssetScanPage.ts b/client/src/router/lazy/MobileAssetScanPage.ts
new file mode 100644
index 00000000..59bb81df
--- /dev/null
+++ b/client/src/router/lazy/MobileAssetScanPage.ts
@@ -0,0 +1 @@
+export { MobileAssetScanPage as default } from "../../pages/MobileAssetScanPage";
diff --git a/client/src/router/lazy/MobileCapturePage.ts b/client/src/router/lazy/MobileCapturePage.ts
new file mode 100644
index 00000000..c8cb1e20
--- /dev/null
+++ b/client/src/router/lazy/MobileCapturePage.ts
@@ -0,0 +1 @@
+export { MobileCapturePage as default } from "../../pages/MobileCapturePage";
diff --git a/client/src/router/lazy/NotificationChannelsPage.ts b/client/src/router/lazy/NotificationChannelsPage.ts
new file mode 100644
index 00000000..fdf9c78d
--- /dev/null
+++ b/client/src/router/lazy/NotificationChannelsPage.ts
@@ -0,0 +1 @@
+export { NotificationChannelsPage as default } from "../../pages/NotificationChannelsPage";
diff --git a/client/src/router/lazy/NotificationsPage.ts b/client/src/router/lazy/NotificationsPage.ts
new file mode 100644
index 00000000..d1e0d67c
--- /dev/null
+++ b/client/src/router/lazy/NotificationsPage.ts
@@ -0,0 +1 @@
+export { NotificationsPage as default } from "../../pages/NotificationsPage";
diff --git a/client/src/router/lazy/PurchaseRequestsPage.ts b/client/src/router/lazy/PurchaseRequestsPage.ts
new file mode 100644
index 00000000..e691ff7f
--- /dev/null
+++ b/client/src/router/lazy/PurchaseRequestsPage.ts
@@ -0,0 +1 @@
+export { PurchaseRequestsPage as default } from "../../pages/PurchaseRequestsPage";
diff --git a/client/src/router/lazy/ReimbursementDetailPage.ts b/client/src/router/lazy/ReimbursementDetailPage.ts
new file mode 100644
index 00000000..1d58f440
--- /dev/null
+++ b/client/src/router/lazy/ReimbursementDetailPage.ts
@@ -0,0 +1 @@
+export { ReimbursementDetailPage as default } from "../../pages/ReimbursementDetailPage";
diff --git a/client/src/router/lazy/ReimbursementsPage.ts b/client/src/router/lazy/ReimbursementsPage.ts
new file mode 100644
index 00000000..927692ba
--- /dev/null
+++ b/client/src/router/lazy/ReimbursementsPage.ts
@@ -0,0 +1 @@
+export { ReimbursementsPage as default } from "../../pages/ReimbursementsPage";
diff --git a/client/src/router/lazy/TravelRequestsPage.ts b/client/src/router/lazy/TravelRequestsPage.ts
new file mode 100644
index 00000000..b4f4ef88
--- /dev/null
+++ b/client/src/router/lazy/TravelRequestsPage.ts
@@ -0,0 +1 @@
+export { TravelRequestsPage as default } from "../../pages/TravelRequestsPage";
diff --git a/client/src/router/lazy/UserManagementPage.ts b/client/src/router/lazy/UserManagementPage.ts
new file mode 100644
index 00000000..10d19259
--- /dev/null
+++ b/client/src/router/lazy/UserManagementPage.ts
@@ -0,0 +1 @@
+export { UserManagementPage as default } from "../../pages/UserManagementPage";
diff --git a/client/src/router/lazy/WorkflowTaskDetailPage.ts b/client/src/router/lazy/WorkflowTaskDetailPage.ts
new file mode 100644
index 00000000..64934ae6
--- /dev/null
+++ b/client/src/router/lazy/WorkflowTaskDetailPage.ts
@@ -0,0 +1 @@
+export { WorkflowTaskDetailPage as default } from "../../pages/WorkflowTaskDetailPage";
diff --git a/client/src/router/lazy/WorkflowTasksPage.ts b/client/src/router/lazy/WorkflowTasksPage.ts
new file mode 100644
index 00000000..68a222db
--- /dev/null
+++ b/client/src/router/lazy/WorkflowTasksPage.ts
@@ -0,0 +1 @@
+export { WorkflowTasksPage as default } from "../../pages/WorkflowTasksPage";
diff --git a/client/src/router/lazy/index.ts b/client/src/router/lazy/index.ts
new file mode 100644
index 00000000..658ff6e3
--- /dev/null
+++ b/client/src/router/lazy/index.ts
@@ -0,0 +1,25 @@
+import { lazy } from "react";
+
+export const AuditLogsPage = lazy(() => import("./AuditLogsPage"));
+export const ApprovalRulesPage = lazy(() => import("./ApprovalRulesPage"));
+export const AssetRegistryPage = lazy(() => import("./AssetRegistryPage"));
+export const DelegationsPage = lazy(() => import("./DelegationsPage"));
+export const DepartmentsPage = lazy(() => import("./DepartmentsPage"));
+export const ErpIntegrationPage = lazy(() => import("./ErpIntegrationPage"));
+export const FeatureFlagsPage = lazy(() => import("./FeatureFlagsPage"));
+export const InventoryChecksPage = lazy(() => import("./InventoryChecksPage"));
+export const InvoicePoolPage = lazy(() => import("./InvoicePoolPage"));
+export const LeaveRequestPage = lazy(() => import("./LeaveRequestPage"));
+export const MasterDataPage = lazy(() => import("./MasterDataPage"));
+export const MobileApprovalsPage = lazy(() => import("./MobileApprovalsPage"));
+export const MobileAssetScanPage = lazy(() => import("./MobileAssetScanPage"));
+export const MobileCapturePage = lazy(() => import("./MobileCapturePage"));
+export const NotificationChannelsPage = lazy(() => import("./NotificationChannelsPage"));
+export const NotificationsPage = lazy(() => import("./NotificationsPage"));
+export const PurchaseRequestsPage = lazy(() => import("./PurchaseRequestsPage"));
+export const ReimbursementDetailPage = lazy(() => import("./ReimbursementDetailPage"));
+export const ReimbursementsPage = lazy(() => import("./ReimbursementsPage"));
+export const TravelRequestsPage = lazy(() => import("./TravelRequestsPage"));
+export const UserManagementPage = lazy(() => import("./UserManagementPage"));
+export const WorkflowTaskDetailPage = lazy(() => import("./WorkflowTaskDetailPage"));
+export const WorkflowTasksPage = lazy(() => import("./WorkflowTasksPage"));
diff --git a/client/vite.config.ts b/client/vite.config.ts
index 8fc716e8..f2382c1d 100644
--- a/client/vite.config.ts
+++ b/client/vite.config.ts
@@ -2,6 +2,86 @@ import { defineConfig } from "vite";
 import react from "@vitejs/plugin-react";
 import { VitePWA } from "vite-plugin-pwa";
 
+const PAGE_CHUNK_PATTERNS = {
+  "page-travel": ["TravelRequestsPage"],
+  "page-assets": ["AssetRegistryPage", "InventoryChecksPage"],
+  "page-procurement": ["PurchaseRequestsPage"],
+  "page-workflow": ["WorkflowTasksPage", "WorkflowTaskDetailPage"],
+  "page-system": [
+    "AuditLogsPage",
+    "ApprovalRulesPage",
+    "DelegationsPage",
+    "DepartmentsPage",
+    "ErpIntegrationPage",
+    "FeatureFlagsPage",
+    "InvoicePoolPage",
+    "LeaveRequestPage",
+    "MasterDataPage",
+    "NotificationChannelsPage",
+    "NotificationsPage",
+    "ReimbursementDetailPage",
+    "ReimbursementsPage",
+    "UserManagementPage",
+  ],
+  "page-mobile": ["MobileCapturePage", "MobileAssetScanPage", "MobileApprovalsPage"],
+} as const;
+
+function resolveManualChunk(id: string) {
+  if (id.includes("node_modules")) {
+    if (["react", "react-dom", "react-router-dom"].some((pkg) => id.includes(`/node_modules/${pkg}/`))) {
+      return "vendor-react";
+    }
+
+    if (id.includes("/node_modules/@tanstack/react-query/")) {
+      return "vendor-query";
+    }
+
+    if (id.includes("/node_modules/@zxing/browser/")) {
+      return "vendor-scan";
+    }
+
+    if (
+      id.includes("/node_modules/@radix-ui/") ||
+      id.includes("/node_modules/class-variance-authority/") ||
+      id.includes("/node_modules/clsx/") ||
+      id.includes("/node_modules/tailwind-merge/") ||
+      id.includes("/node_modules/sonner/")
+    ) {
+      return "vendor-ui";
+    }
+
+    return undefined;
+  }
+
+  if (
+    id.includes("/src/api/http.ts") ||
+    id.includes("/src/api/types.ts") ||
+    id.includes("/src/api/errorMessages.ts") ||
+    id.includes("/src/api/auth.ts") ||
+    id.includes("/src/auth/") ||
+    id.includes("/src/components/common/") ||
+    id.includes("/src/hooks/") ||
+    id.includes("/src/lib/") ||
+    id.includes("/src/pwa.ts")
+  ) {
+    return "app-core";
+  }
+
+  if (id.includes("/src/api/masterData.ts") || id.includes("/src/components/ai/")) {
+    return "app-domain-shared";
+  }
+
+  for (const [chunkName, pageNames] of Object.entries(PAGE_CHUNK_PATTERNS)) {
+    for (const pageName of pageNames) {
+      if (id.includes(`/src/router/lazy/${pageName}.ts`)) {
+        return chunkName;
+      }
+    }
+  }
+
+  return undefined;
+}
+
 export default defineConfig({
   plugins: [
     react(),
@@ -89,6 +169,15 @@ export default defineConfig({
       },
     }),
   ],
+  build: {
+    rollupOptions: {
+      output: {
+        manualChunks(id) {
+          return resolveManualChunk(id);
+        },
+      },
+    },
+  },
   server: {
     proxy: {
       "/api": {