diff --git a/src/components/user/sidebar-user-card.tsx b/src/components/user/sidebar-user-card.tsx
index 59de08a6..3679e41c 100644
--- a/src/components/user/sidebar-user-card.tsx
+++ b/src/components/user/sidebar-user-card.tsx
@@ -2,7 +2,7 @@
 
 import Image from "next/image"
 import Link from "next/link"
-import { useRouter } from "next/navigation"
+import { usePathname, useRouter, useSearchParams } from "next/navigation"
 import { CalendarDays, CheckCircle2, ChevronLeft, ChevronRight, Heart, Plus, RotateCcw, Settings, Star, Trophy, Users, Wallet, X } from "lucide-react"
 import { useCallback, useEffect, useMemo, useRef, useState } from "react"
 
@@ -255,8 +255,13 @@ function CalendarPendingStatusIcon({
 
 export function SidebarUserCard({ user, createPostHref = "/write", siteName = "知识型兴趣社区", siteDescription = "把时间浪费在你真正热爱的事情上。这里更适合持续浏览、慢慢讨论、围绕兴趣沉淀长期内容。", siteLogoPath, siteIconPath }: { user: SidebarUserCardData | null; createPostHref?: string; siteName?: string; siteDescription?: string; siteLogoPath?: string | null; siteIconPath?: string | null }) {
   const router = useRouter()
+  const pathname = usePathname()
+  const searchParams = useSearchParams()
   const { refresh: refreshCurrentUser } = useCurrentUser()
   const currentUser = user
+  const currentSearch = searchParams.toString()
+  const currentPath = `${pathname}${currentSearch ? `?${currentSearch}` : ""}`
+  const loginHref = buildLoginHrefWithRedirect(currentPath)
   const [checkInState, setCheckInState] = useState(() => ({
     points: user?.points ?? 0,
     checkedInToday: Boolean(user?.checkedInToday),
@@ -386,7 +391,7 @@ export function SidebarUserCard({ user, createPostHref = "/write", siteName = "
         <div className="space-y-3 p-4">
           <p className="text-sm leading-6 text-muted-foreground">{siteDescription}</p>
           <div className="grid grid-cols-2 gap-2 border-t border-border/80 pt-3">
-            <Link href={buildLoginHrefWithRedirect("/")} className="block">
+            <Link href={loginHref} className="block">
               <Button className="h-9 w-full rounded-lg">登录</Button>
             </Link>
             <Link href="/register" className="block">