diff --git a/app/(account)/layout.tsx b/app/(account)/layout.tsx
index 551e477..e9eceb6 100644
--- a/app/(account)/layout.tsx
+++ b/app/(account)/layout.tsx
@@ -1,4 +1,5 @@
 import { AccountSidebar } from "@/components/account-sidebar"
+import { AuthGuard } from "@/components/auth-guard"
 import { Header } from "@/components/header"
 
 export default function AccountLayout({ children }: { children: React.ReactNode }) {
@@ -9,7 +10,9 @@ export default function AccountLayout({ children }: { children: React.ReactNode
         <div className="hidden md:block">
           <AccountSidebar />
         </div>
-        <main className="flex-1 p-6">{children}</main>
+        <main className="flex-1 p-6">
+          <AuthGuard>{children}</AuthGuard>
+        </main>
       </div>
     </div>
   )
diff --git a/app/(dashboard)/layout.tsx b/app/(dashboard)/layout.tsx
index 5bacc59..e4bd69f 100644
--- a/app/(dashboard)/layout.tsx
+++ b/app/(dashboard)/layout.tsx
@@ -1,3 +1,4 @@
+import { AuthGuard } from "@/components/auth-guard"
 import { DashboardSidebar } from "@/components/dashboard-sidebar"
 import { Header } from "@/components/header"
 
@@ -9,7 +10,9 @@ export default function DashboardLayout({ children }: { children: React.ReactNod
         <div className="hidden md:block">
           <DashboardSidebar />
         </div>
-        <main className="flex-1 p-6">{children}</main>
+        <main className="flex-1 p-6">
+          <AuthGuard>{children}</AuthGuard>
+        </main>
       </div>
     </div>
   )
diff --git a/app/(main)/post/new/page.tsx b/app/(main)/post/new/page.tsx
index a818b22..c9a8e50 100644
--- a/app/(main)/post/new/page.tsx
+++ b/app/(main)/post/new/page.tsx
@@ -20,6 +20,7 @@ import {
   SelectValue,
 } from "@/components/ui/select"
 import { Textarea } from "@/components/ui/textarea"
+import { useRequireAuth } from "@/lib/use-require-auth"
 
 const postSchema = z.object({
   title: z.string().min(2, "标题至少2个字符").max(50, "标题最多50个字符"),
@@ -30,6 +31,7 @@ const tagOptions = ["英雄联盟", "王者荣耀", "CS2", "原神", "上分", "
 
 export default function NewPostPage() {
   const router = useRouter()
+  const { isAuthenticated, requireAuth } = useRequireAuth()
   const [postType, setPostType] = useState("normal")
   const [selectedTags, setSelectedTags] = useState<string[]>([])
   const [imageCount, setImageCount] = useState(0)
@@ -49,6 +51,11 @@ export default function NewPostPage() {
   }
 
   const onSubmit = async () => {
+    if (!isAuthenticated) {
+      requireAuth(() => undefined)
+      return
+    }
+
     await new Promise((r) => setTimeout(r, 500))
     router.push("/community")
   }
diff --git a/app/(order)/layout.tsx b/app/(order)/layout.tsx
index a26f97c..f7f230f 100644
--- a/app/(order)/layout.tsx
+++ b/app/(order)/layout.tsx
@@ -1,10 +1,22 @@
+"use client"
+
+import { usePathname } from "next/navigation"
+import { AuthGuard } from "@/components/auth-guard"
 import { Header } from "@/components/header"
 
 export default function OrderLayout({ children }: { children: React.ReactNode }) {
+  const pathname = usePathname()
+  const protectedPathPrefixes = ["/orders", "/order", "/chat", "/dispute", "/review"]
+  const shouldGuard = protectedPathPrefixes.some(
+    (prefix) => pathname === prefix || pathname.startsWith(`${prefix}/`),
+  )
+
   return (
     <div className="flex min-h-screen flex-col">
       <Header />
-      <main className="flex-1 bg-muted/30">{children}</main>
+      <main className="flex-1 bg-muted/30">
+        {shouldGuard ? <AuthGuard>{children}</AuthGuard> : children}
+      </main>
     </div>
   )
 }
diff --git a/app/(order)/order/new/page.tsx b/app/(order)/order/new/page.tsx
index 8144c04..9534859 100644
--- a/app/(order)/order/new/page.tsx
+++ b/app/(order)/order/new/page.tsx
@@ -12,9 +12,11 @@ import { Label } from "@/components/ui/label"
 import { Separator } from "@/components/ui/separator"
 import { Textarea } from "@/components/ui/textarea"
 import { mockPlayers, mockServices, walletBalance } from "@/lib/mock-data"
+import { useRequireAuth } from "@/lib/use-require-auth"
 
 export default function NewOrderPage() {
   const searchParams = useSearchParams()
+  const { requireAuth } = useRequireAuth()
   const serviceId = searchParams.get("serviceId")
 
   const service = mockServices.find((s) => s.id === serviceId)
@@ -168,7 +170,7 @@ export default function NewOrderPage() {
           className="w-full"
           size="lg"
           disabled={walletBalance < totalPrice}
-          onClick={() => setSubmitted(true)}
+          onClick={() => requireAuth(() => setSubmitted(true))}
         >
           确认支付 ¥{totalPrice}
         </Button>
diff --git a/components/auth-guard.tsx b/components/auth-guard.tsx
new file mode 100644
index 0000000..bca9f4f
--- /dev/null
+++ b/components/auth-guard.tsx
@@ -0,0 +1,32 @@
+"use client"
+
+import { useEffect } from "react"
+import { Button } from "@/components/ui/button"
+import { useAuthStore } from "@/store/auth"
+import { useLoginDialogStore } from "@/store/login-dialog"
+
+interface AuthGuardProps {
+  children: React.ReactNode
+}
+
+export function AuthGuard({ children }: AuthGuardProps) {
+  const isAuthenticated = useAuthStore((s) => s.isAuthenticated)
+  const openLoginDialog = useLoginDialogStore((s) => s.openLoginDialog)
+
+  useEffect(() => {
+    if (!isAuthenticated) {
+      openLoginDialog()
+    }
+  }, [isAuthenticated, openLoginDialog])
+
+  if (isAuthenticated) {
+    return <>{children}</>
+  }
+
+  return (
+    <div className="flex min-h-[50vh] flex-col items-center justify-center gap-4 text-center">
+      <p className="text-sm text-muted-foreground">请先登录后继续访问此页面</p>
+      <Button onClick={openLoginDialog}>登录</Button>
+    </div>
+  )
+}