diff --git a/.env.production b/.env.production
index 021a5c53..d8e4e1fa 100644
--- a/.env.production
+++ b/.env.production
@@ -1,5 +1,5 @@
-API_URL=http://10.10.0.81:8090/api
+API_URL=http://127.0.0.1:8090/api
 NEXTAUTH_SECRET=secret
-NEXTAUTH_URL=http://10.10.0.81:3000
-NEXT_PUBLIC_API_URL=http://10.10.0.81:8090/api
+NEXTAUTH_URL=http://127.0.0.1:3000
+NEXT_PUBLIC_API_URL=http://127.0.0.1:8090/api
 NEXT_PUBLIC_QC_MEASUREMENT_ENABLED=false
\ No newline at end of file
diff --git a/src/components/LoginPage/LoginPage.tsx b/src/components/LoginPage/LoginPage.tsx
index 23fa15c8..75f1b140 100644
--- a/src/components/LoginPage/LoginPage.tsx
+++ b/src/components/LoginPage/LoginPage.tsx
@@ -16,24 +16,11 @@ const LoginPage = () => {
         lg={6}
         sx={{
           display: { xs: "none", sm: "block" },
-          backgroundColor: "#c5e58b",
+          backgroundImage: "linear-gradient(135deg, rgba(59,130,246,0.15) 0%, #f1f5f9 45%, #f8fafc 100%)",
+          backgroundColor: "#f8fafc",
           minHeight: { xs: 0, sm: "100vh" },
         }}
-      >
-        <Box
-          sx={{
-            width: "100%",
-            height: "100%",
-            minHeight: { sm: "100vh" },
-            backgroundImage: "url('logo/HomepageLogo.png')",
-            backgroundRepeat: "no-repeat",
-            backgroundPosition: "center",
-            backgroundSize: "contain",
-            maxWidth: 960,
-            margin: "0 auto",
-          }}
-        />
-      </Grid>
+      />
       <Grid
         item
         xs={12}
diff --git a/src/components/NavigationContent/NavigationContent.tsx b/src/components/NavigationContent/NavigationContent.tsx
index 957cb95b..28de4f55 100644
--- a/src/components/NavigationContent/NavigationContent.tsx
+++ b/src/components/NavigationContent/NavigationContent.tsx
@@ -244,7 +244,7 @@ const NavigationContent: React.FC = () => {
       labelKey: "nav.m18Sync",
       path: "/m18Syn",
       requiredAbility: [AUTH.M18_SYNC, AUTH.ADMIN],
-      isHidden: false,
+      isHidden: true,
     },
     {
       id: "nav.chartReports",
@@ -416,6 +416,7 @@ const NavigationContent: React.FC = () => {
           icon: <Science />,
           labelKey: "nav.settings.importTesting",
           path: "/settings/m18ImportTesting",
+          isHidden: true,
         },
         {
           id: "nav.settings.importExcel",
diff --git a/src/components/PoSearch/PoSearch.tsx b/src/components/PoSearch/PoSearch.tsx
index 0d82819c..95caf12c 100644
--- a/src/components/PoSearch/PoSearch.tsx
+++ b/src/components/PoSearch/PoSearch.tsx
@@ -294,17 +294,6 @@ const PoSearch: React.FC<Props> = ({
         if (typeof v === "string" && (v as string).trim() === "") return;
         cleanedQuery[k] = String(v);
       });
-        const searchedCodeRaw = (filterArgs as any)?.code;
-        const searchedCode =
-          typeof searchedCodeRaw === "string" ? searchedCodeRaw.trim() : "";
-        const isM18PoCode =
-          searchedCode.length > 14 &&
-          (searchedCode.startsWith("PP") || searchedCode.startsWith("PF"));
-        if (isM18PoCode) {
-          cleanedQuery.refreshFromM18 = "true";
-          setIsM18LookupLoading(true);
-          setAutoSyncStatus("載入中...");
-        }
 
         try {
           const baseListResp = await clientAuthFetch(
@@ -320,17 +309,8 @@ const PoSearch: React.FC<Props> = ({
           const records: PoResult[] = res.records ?? [];
           setFilteredPo(records);
           setTotalCount(res.total ?? 0);
-          if (isM18PoCode) {
-            const refreshAction = baseListResp.headers.get("X-M18-Po-Refresh");
-            if (refreshAction === "synced") {
-              setAutoSyncStatus(records.length > 0 ? "已從M18同步PO" : "找不到PO");
-            } else {
-              setAutoSyncStatus(null);
-            }
-          }
         } catch (e) {
           console.error("PO list fetch error:", e);
-          if (isM18PoCode) setAutoSyncStatus("找不到PO");
         } finally {
           setIsM18LookupLoading(false);
           autoSyncInProgressRef.current = false;
diff --git a/src/middleware.ts b/src/middleware.ts
index d71df885..d53b836c 100644
--- a/src/middleware.ts
+++ b/src/middleware.ts
@@ -26,6 +26,11 @@ export default async function middleware(
   req: NextRequestWithAuth,
   event: NextFetchEvent,
 ) {
+  const blockedDemoPaths = ["/m18Syn", "/settings/m18ImportTesting", "/testing", "/jo/testing"];
+  if (blockedDemoPaths.some((path) => req.nextUrl.pathname === path || req.nextUrl.pathname.startsWith(`${path}/`))) {
+    return NextResponse.redirect(new URL("/dashboard", req.url));
+  }
+
   // Handle language parameters
   const langPref = req.nextUrl.searchParams.get(LANG_QUERY_PARAM);
   if (langPref) {