diff --git a/components/canvas/CanvasChatPanel.tsx b/components/canvas/CanvasChatPanel.tsx
index 313310ae1..4276fbb33 100644
--- a/components/canvas/CanvasChatPanel.tsx
+++ b/components/canvas/CanvasChatPanel.tsx
@@ -4,7 +4,7 @@ import { useChat } from "@ai-sdk/react";
 import { DefaultChatTransport } from "ai";
 import { useEffect, useRef, useState, useCallback, useMemo, type ClipboardEvent as ReactClipboardEvent, type DragEvent as ReactDragEvent, type MouseEvent as ReactMouseEvent } from "react";
 import { useSession } from "next-auth/react";
-import { usePathname, useRouter, useSearchParams } from "next/navigation";
+import { useSearchParams } from "next/navigation";
 import { createPortal } from "react-dom";
 import type { DetailUiProtocol } from "@/lib/detail-ui-protocol";
 import type { DetailUiScreenReviewPatch } from "@/lib/detail-ui-protocol";
@@ -2258,8 +2258,6 @@ export function CanvasChatPanel({
   );
   const effectiveAgentEnabled = agentEnabled && !isVideoWorkspace;
   const { data: session } = useSession();
-  const router = useRouter();
-  const pathname = usePathname();
   const searchParams = useSearchParams();
   const requestedChatSessionId = useMemo(
     () => normalizeCanvasChatSessionId(searchParams.get(CANVAS_CHAT_QUERY_PARAM)),
@@ -2406,15 +2404,11 @@ export function CanvasChatPanel({
       const normalized = normalizeCanvasChatSessionId(sessionId);
       if (!normalized || typeof window === "undefined") return;
 
-      const params = new URLSearchParams(window.location.search);
-      params.set(CANVAS_CHAT_QUERY_PARAM, normalized);
-      const query = params.toString();
-      const hash = window.location.hash || "";
-      router.replace(`${pathname}${query ? `?${query}` : ""}${hash}`, {
-        scroll: false,
-      });
+      const url = new URL(window.location.href);
+      url.searchParams.set(CANVAS_CHAT_QUERY_PARAM, normalized);
+      window.history.replaceState(window.history.state, "", url);
     },
-    [pathname, router]
+    []
   );
   
   // 🆕 标签悬停预览状态