diff --git a/frontend-web/src/components/ui/sidebar.tsx b/frontend-web/src/components/ui/sidebar.tsx
index 2e6d3ca1..80e8e357 100644
--- a/frontend-web/src/components/ui/sidebar.tsx
+++ b/frontend-web/src/components/ui/sidebar.tsx
@@ -53,6 +53,10 @@ function useSidebar() {
   return context;
 }
 
+function useSidebarSafe() {
+  return React.useContext(SidebarContext);
+}
+
 function SidebarProvider({
   defaultOpen = true,
   open: openProp,
@@ -229,7 +233,7 @@ function Sidebar({
       <div
         data-slot="sidebar-container"
         className={cn(
-          "fixed top-16 bottom-0 z-10 hidden w-(--sidebar-width) transition-[left,right,width] duration-200 ease-linear md:flex",
+          "fixed bottom-0 z-10 hidden w-(--sidebar-width) transition-[left,right,width] duration-200 ease-linear md:flex [top:var(--header-height,4rem)]",
           side === "left"
             ? "left-0 group-data-[collapsible=offcanvas]:left-[calc(var(--sidebar-width)*-1)]"
             : "right-0 group-data-[collapsible=offcanvas]:right-[calc(var(--sidebar-width)*-1)]",
@@ -723,4 +727,5 @@ export {
   SidebarSeparator,
   SidebarTrigger,
   useSidebar,
+  useSidebarSafe,
 };
diff --git a/frontend-web/src/components/workspace/artifacts/context.tsx b/frontend-web/src/components/workspace/artifacts/context.tsx
index 1e7c8215..8d8a1b93 100644
--- a/frontend-web/src/components/workspace/artifacts/context.tsx
+++ b/frontend-web/src/components/workspace/artifacts/context.tsx
@@ -6,7 +6,7 @@ import {
   type ReactNode,
 } from "react";
 
-import { useSidebar } from "@/components/ui/sidebar";
+import { useSidebarSafe } from "@/components/ui/sidebar";
 import { env } from "@/env";
 
 export interface ArtifactsContextType {
@@ -39,19 +39,19 @@ export function ArtifactsProvider({ children }: ArtifactsProviderProps) {
     env.NEXT_PUBLIC_STATIC_WEBSITE_ONLY === "true",
   );
   const [autoOpen, setAutoOpen] = useState(true);
-  const { setOpen: setSidebarOpen } = useSidebar();
+  const sidebar = useSidebarSafe();
 
   const select = useCallback(
     (artifact: string, autoSelect = false) => {
       setSelectedArtifact(artifact);
       if (env.NEXT_PUBLIC_STATIC_WEBSITE_ONLY !== "true") {
-        setSidebarOpen(false);
+        sidebar?.setOpen(false);
       }
       if (!autoSelect) {
         setAutoSelect(false);
       }
     },
-    [setSidebarOpen, setSelectedArtifact, setAutoSelect],
+    [sidebar, setSelectedArtifact, setAutoSelect],
   );
 
   const deselect = useCallback(() => {
diff --git a/frontend-web/src/core/route-base.tsx b/frontend-web/src/core/route-base.tsx
new file mode 100644
index 00000000..8790a83e
--- /dev/null
+++ b/frontend-web/src/core/route-base.tsx
@@ -0,0 +1,24 @@
+import { createContext, useCallback, useContext } from "react";
+import { useNavigate, type NavigateOptions } from "react-router-dom";
+
+export const RouteBaseContext = createContext("/page/workspace");
+export const RouteBaseProvider = RouteBaseContext.Provider;
+
+export function useRouteBase() {
+  return useContext(RouteBaseContext);
+}
+
+export function useRouteNavigate() {
+  const navigate = useNavigate();
+  const base = useRouteBase();
+  return useCallback(
+    (path: string | number, opts?: NavigateOptions) => {
+      if (typeof path === "string") {
+        navigate(path.replace("/page/workspace", base), opts);
+      } else {
+        navigate(path);
+      }
+    },
+    [navigate, base],
+  );
+}
diff --git a/frontend-web/src/core/threads/utils.ts b/frontend-web/src/core/threads/utils.ts
index 1c2b7ab5..8877eda3 100644
--- a/frontend-web/src/core/threads/utils.ts
+++ b/frontend-web/src/core/threads/utils.ts
@@ -1,5 +1,7 @@
+import { useContext } from "react";
 import type { Message } from "@langchain/langgraph-sdk";
 
+import { RouteBaseContext } from "@/core/route-base";
 import type { AgentThread, AgentThreadContext } from "./types";
 
 type ThreadAgentRef = Pick<AgentThreadContext, "agent_id" | "agent_name">;
@@ -28,6 +30,7 @@ function pickAgentRef(
 export function pathOfThread(
   thread: ThreadRouteTarget,
   context?: ThreadAgentRef | null,
+  base = "/page/workspace",
 ) {
   const threadId = typeof thread === "string" ? thread : thread.thread_id;
   const agentRef =
@@ -36,8 +39,14 @@ export function pathOfThread(
       : pickAgentRef(thread.context, thread.metadata);
 
   return agentRef
-    ? `/page/workspace/agents/${encodeURIComponent(agentRef)}/chats/${threadId}`
-    : `/page/workspace/chats/${threadId}`;
+    ? `${base}/agents/${encodeURIComponent(agentRef)}/chats/${threadId}`
+    : `${base}/chats/${threadId}`;
+}
+
+export function usePathOfThread() {
+  const base = useContext(RouteBaseContext);
+  return (thread: ThreadRouteTarget, context?: ThreadAgentRef | null) =>
+    pathOfThread(thread, context, base);
 }
 
 export function textOfMessage(message: Message) {
diff --git a/frontend-web/src/pages/AgentChatPage.tsx b/frontend-web/src/pages/AgentChatPage.tsx
index 871998b9..9f4679de 100644
--- a/frontend-web/src/pages/AgentChatPage.tsx
+++ b/frontend-web/src/pages/AgentChatPage.tsx
@@ -2,6 +2,7 @@
 
 import { BotIcon, PlusSquare } from "lucide-react";
 import { useParams, useRouter } from "next/navigation";
+import { useRouteBase } from "@/core/route-base";
 import { useCallback, useEffect, useState } from "react";
 
 import type { PromptInputMessage } from "@/components/ai-elements/prompt-input";
@@ -32,6 +33,7 @@ import { env } from "@/env";
 import { cn } from "@/lib/utils";
 
 export default function AgentChatPage() {
+  const routeBase = useRouteBase();
   const { t } = useI18n();
   const [showFollowups, setShowFollowups] = useState(false);
   const [hasStartedConversation, setHasStartedConversation] = useState(false);
@@ -66,7 +68,7 @@ export default function AgentChatPage() {
       history.replaceState(
         null,
         "",
-        `${window.location.pathname}${window.location.search}#/page/workspace/agents/${agent_id}/chats/${createdThreadId}`,
+        `${window.location.pathname}${window.location.search}#${routeBase}/agents/${agent_id}/chats/${createdThreadId}`,
       );
     },
     onFinish: (state) => {
diff --git a/frontend-web/src/pages/ChatPage.tsx b/frontend-web/src/pages/ChatPage.tsx
index 3ada83f5..66c75403 100644
--- a/frontend-web/src/pages/ChatPage.tsx
+++ b/frontend-web/src/pages/ChatPage.tsx
@@ -26,11 +26,13 @@ import { useModels } from "@/core/models/hooks";
 import { useNotification } from "@/core/notification/hooks";
 import { useThreadSettings } from "@/core/settings";
 import { useThreadStream } from "@/core/threads/hooks";
+import { useRouteBase } from "@/core/route-base";
 import { textOfMessage } from "@/core/threads/utils";
 import { env } from "@/env";
 import { cn } from "@/lib/utils";
 
 export default function ChatPage() {
+  const routeBase = useRouteBase();
   const { t } = useI18n();
   const [showFollowups, setShowFollowups] = useState(false);
   const [hasStartedConversation, setHasStartedConversation] = useState(false);
@@ -64,7 +66,7 @@ export default function ChatPage() {
       history.replaceState(
         null,
         "",
-        `${window.location.pathname}${window.location.search}#/page/workspace/chats/${createdThreadId}`,
+        `${window.location.pathname}${window.location.search}#${routeBase}/chats/${createdThreadId}`,
       );
     },
     onFinish: (state) => {
diff --git a/frontend-web/src/pages/ChatsPage.tsx b/frontend-web/src/pages/ChatsPage.tsx
index ceb8228d..e2990a5f 100644
--- a/frontend-web/src/pages/ChatsPage.tsx
+++ b/frontend-web/src/pages/ChatsPage.tsx
@@ -12,10 +12,11 @@ import {
 } from "@/components/workspace/workspace-container";
 import { useI18n } from "@/core/i18n/hooks";
 import { useThreads } from "@/core/threads/hooks";
-import { pathOfThread, titleOfThread } from "@/core/threads/utils";
+import { usePathOfThread, titleOfThread } from "@/core/threads/utils";
 import { formatTimeAgo } from "@/core/utils/datetime";
 
 export default function ChatsPage() {
+  const pathOfThread = usePathOfThread();
   const { t } = useI18n();
   const { data: threads } = useThreads();
   const [search, setSearch] = useState("");
diff --git a/frontend-web/src/pages/PageRoutes.tsx b/frontend-web/src/pages/PageRoutes.tsx
index 6e174624..1d252412 100644
--- a/frontend-web/src/pages/PageRoutes.tsx
+++ b/frontend-web/src/pages/PageRoutes.tsx
@@ -8,7 +8,7 @@ import StrategyRoutes from "./StrategyRoutes";
 import Header from "@/strategy-components/Header";
 
 // 设为 true 时隐藏侧边栏（开发中，暂未完成）
-const SIDEBAR_ENABLED = true;
+const SIDEBAR_ENABLED = false;
 
 function PageLayout() {
   const [collapsed, setCollapsed] = useState(false);
@@ -26,7 +26,7 @@ function PageLayout() {
           !SIDEBAR_ENABLED ? "" : collapsed ? "pl-16" : "pl-64"
         }`}
       >
-        <Header />
+        {SIDEBAR_ENABLED && <Header />}
         <main className="flex-1 overflow-hidden">
           <Routes>
             <Route index element={<Navigate to="workspace" replace />} />
@@ -36,6 +36,7 @@ function PageLayout() {
                 <WorkspaceRoutes
                   pageSidebarCollapsed={collapsed}
                   pageSidebarHidden={!SIDEBAR_ENABLED}
+                  headerHidden={!SIDEBAR_ENABLED}
                 />
               }
             />
diff --git a/frontend-web/src/pages/ScheduledTaskRunDetailPage.tsx b/frontend-web/src/pages/ScheduledTaskRunDetailPage.tsx
index 4071b1e8..febf21fb 100644
--- a/frontend-web/src/pages/ScheduledTaskRunDetailPage.tsx
+++ b/frontend-web/src/pages/ScheduledTaskRunDetailPage.tsx
@@ -2,7 +2,8 @@
 
 import { useEffect, useMemo, useState } from "react";
 import { ChevronDown, Download, FileText, ListChecks, Trash2 } from "lucide-react";
-import { useNavigate, useParams } from "react-router-dom";
+import { useParams } from "react-router-dom";
+import { useRouteNavigate as useNavigate } from "@/core/route-base";
 import { toast } from "sonner";
 
 import { Badge } from "@/components/ui/badge";
diff --git a/frontend-web/src/pages/ScheduledTasksPage.tsx b/frontend-web/src/pages/ScheduledTasksPage.tsx
index b0481fbb..d863247e 100644
--- a/frontend-web/src/pages/ScheduledTasksPage.tsx
+++ b/frontend-web/src/pages/ScheduledTasksPage.tsx
@@ -17,7 +17,7 @@ import {
   RefreshCw,
   Trash2,
 } from "lucide-react";
-import { useNavigate } from "react-router-dom";
+import { useRouteNavigate as useNavigate } from "@/core/route-base";
 import { toast } from "sonner";
 
 import { Badge } from "@/components/ui/badge";
diff --git a/frontend-web/src/pages/StrategyRoutes.tsx b/frontend-web/src/pages/StrategyRoutes.tsx
index 879730b9..54941cdd 100644
--- a/frontend-web/src/pages/StrategyRoutes.tsx
+++ b/frontend-web/src/pages/StrategyRoutes.tsx
@@ -1,7 +1,9 @@
 import { Navigate, Route, Routes } from "react-router-dom";
 import type { ReactNode } from "react";
+import { Toaster } from "sonner";
 
 import { getStoredAuth } from "@/core/auth";
+import { RouteBaseProvider } from "@/core/route-base";
 import { SubtasksProvider } from "@/core/tasks/context";
 import { ArtifactsProvider } from "@/components/workspace/artifacts";
 import { PromptInputProvider } from "@/components/ai-elements/prompt-input";
@@ -28,6 +30,7 @@ function ChatRuntime({ children }: { children: ReactNode }) {
 
 export default function StrategyRoutes() {
   return (
+    <RouteBaseProvider value="/page/strategy">
     <div className="h-full w-full overflow-hidden">
       <Routes>
         <Route index element={<Navigate to="qa/general" replace />} />
@@ -86,5 +89,7 @@ export default function StrategyRoutes() {
         />
       </Routes>
     </div>
+    <Toaster position="top-center" />
+    </RouteBaseProvider>
   );
 }
diff --git a/frontend-web/src/pages/WorkspaceRoutes.tsx b/frontend-web/src/pages/WorkspaceRoutes.tsx
index b03318e5..4357ae5c 100644
--- a/frontend-web/src/pages/WorkspaceRoutes.tsx
+++ b/frontend-web/src/pages/WorkspaceRoutes.tsx
@@ -11,6 +11,8 @@ import { Toaster } from "sonner";
 import { SubtasksProvider } from "@/core/tasks/context";
 import { ArtifactsProvider } from "@/components/workspace/artifacts";
 
+import { RouteBaseProvider } from "@/core/route-base";
+
 import ChatsPage from "./ChatsPage";
 import ChatPage from "./ChatPage";
 import AgentsPage from "./AgentsPage";
@@ -24,10 +26,12 @@ export function WorkspaceLayout({
   children,
   pageSidebarCollapsed,
   pageSidebarHidden = false,
+  headerHidden = false,
 }: {
   children: ReactNode;
   pageSidebarCollapsed: boolean;
   pageSidebarHidden?: boolean;
+  headerHidden?: boolean;
 }) {
   const pageSidebarWidth = pageSidebarHidden
     ? "0rem"
@@ -41,6 +45,7 @@ export function WorkspaceLayout({
       style={
         {
           "--page-sidebar-width": pageSidebarWidth,
+          "--header-height": headerHidden ? "0rem" : "4rem",
         } as CSSProperties
       }
       // Keep the fixed workspace sidebar aligned to the outer page sidebar width.
@@ -69,13 +74,16 @@ function ChatRuntime({ children }: { children: ReactNode }) {
 export default function WorkspaceRoutes({
   pageSidebarCollapsed = false,
   pageSidebarHidden = false,
+  headerHidden = false,
 }: {
   pageSidebarCollapsed?: boolean;
   pageSidebarHidden?: boolean;
+  headerHidden?: boolean;
 }) {
-  const layoutProps = { pageSidebarCollapsed, pageSidebarHidden };
+  const layoutProps = { pageSidebarCollapsed, pageSidebarHidden, headerHidden };
 
   return (
+    <RouteBaseProvider value="/page/workspace">
     <Routes>
       <Route index element={<Navigate to="chats/new" replace />} />
       <Route
@@ -159,5 +167,6 @@ export default function WorkspaceRoutes({
         }
       />
     </Routes>
+    </RouteBaseProvider>
   );
 }
diff --git a/frontend-web/src/shims/next-navigation.ts b/frontend-web/src/shims/next-navigation.ts
index db9aed3c..b3bf4941 100644
--- a/frontend-web/src/shims/next-navigation.ts
+++ b/frontend-web/src/shims/next-navigation.ts
@@ -1,4 +1,4 @@
-import { useMemo } from "react";
+import { useContext, useMemo } from "react";
 import {
   useLocation,
   useNavigate,
@@ -6,19 +6,24 @@ import {
   useSearchParams as useRouterSearchParams,
 } from "react-router-dom";
 
+import { RouteBaseContext } from "@/core/route-base";
+
 export function useRouter() {
   const navigate = useNavigate();
+  const base = useContext(RouteBaseContext);
 
   return useMemo(
     () => ({
-      push: (href: string) => navigate(href),
-      replace: (href: string) => navigate(href, { replace: true }),
+      push: (href: string) =>
+        navigate(href.replace("/page/workspace", base)),
+      replace: (href: string) =>
+        navigate(href.replace("/page/workspace", base), { replace: true }),
       back: () => navigate(-1),
       forward: () => navigate(1),
       refresh: () => window.location.reload(),
       prefetch: async () => {},
     }),
-    [navigate],
+    [navigate, base],
   );
 }
 
diff --git a/frontend-web/src/strategy-components/Header.tsx b/frontend-web/src/strategy-components/Header.tsx
index 78c5d1d8..f5b1c716 100644
--- a/frontend-web/src/strategy-components/Header.tsx
+++ b/frontend-web/src/strategy-components/Header.tsx
@@ -1,5 +1,5 @@
 import React from 'react';
-import { Bell, Search, User, ChevronDown, Moon, Sun, Palette } from 'lucide-react';
+import { Bell, Search, User, ChevronDown, Moon, Palette } from 'lucide-react';
 import { useTheme } from '../contexts/ThemeContext';
 
 const Header: React.FC = () => {
@@ -40,11 +40,7 @@ const Header: React.FC = () => {
           }`}
           title={isDark ? '切换到红白主题' : '切换到深色主题'}
         >
-          {isDark ? (
-            <Palette className="w-5 h-5" />
-          ) : (
-            <Moon className="w-5 h-5" />
-          )}
+          {isDark ? <Palette className="w-5 h-5" /> : <Moon className="w-5 h-5" />}
         </button>
 
         {/* 通知 */}
@@ -63,14 +59,12 @@ const Header: React.FC = () => {
           isDark ? 'hover:bg-slate-800/50' : 'hover:bg-red-500'
         }`}>
           <div className={`w-8 h-8 rounded-full flex items-center justify-center ${
-            isDark
-              ? 'bg-gradient-to-br from-blue-500 to-cyan-400'
-              : 'bg-white'
+            isDark ? 'bg-gradient-to-br from-blue-500 to-cyan-400' : 'bg-white'
           }`}>
             <User className={`w-4 h-4 ${isDark ? 'text-white' : 'text-red-600'}`} />
           </div>
           <div className="text-left">
-            <p className={`text-sm font-medium ${isDark ? 'text-white' : 'text-white'}`}>张策略</p>
+            <p className="text-sm font-medium text-white">张策略</p>
             <p className={`text-xs ${isDark ? 'text-blue-400/60' : 'text-red-200'}`}>策略分析师</p>
           </div>
           <ChevronDown className={`w-4 h-4 ${isDark ? 'text-slate-500' : 'text-white'}`} />