diff --git a/frontend/src/features/listings/api/listings.ts b/frontend/src/features/listings/api/listings.ts
index 8c20f9b..05b8469 100644
--- a/frontend/src/features/listings/api/listings.ts
+++ b/frontend/src/features/listings/api/listings.ts
@@ -34,31 +34,8 @@ export interface Listing {
   updated_at: string
 }
 
-// 公开商品卡片的最小字段，对应后端 PublicListingListItemDTO。
-export interface PublicListingItem {
-  id: number
-  listing_no: string
-  title: string
-  game_name: string
-  server_region: string
-  login_platform: string
-  rank_level: string
-  haf_coin_amount: number
-  asset_summary?: Record<string, unknown>
-  screenshot_urls?: string[]
-  cover_url: string
-  price_cent: number
-  deposit_amount_cent: number
-  is_accelerated_sale?: boolean
-  published_at?: string
-  created_at: string
-}
-
-// 公开商品详情，对应后端 PublicListingDetailDTO。
-export interface PublicListingDetail extends PublicListingItem {
-  description: string
-  screenshot_urls: string[]
-}
+export type PublicListingItem = Listing
+export type PublicListingDetail = Listing
 
 export interface ListingPayload {
   title: string
@@ -112,7 +89,7 @@ export interface PublicListingQuery {
 }
 
 export interface PublicListingPage {
-  items: PublicListingItem[]
+  items: Listing[]
   total: number
   page: number
   page_size: number
@@ -158,7 +135,7 @@ function normalizePublicListingPage(
 }
 
 export async function fetchListing(id: string | number) {
-  const { data } = await apiClient.get<ApiResponse<PublicListingDetail>>(`/listings/${id}`)
+  const { data } = await apiClient.get<ApiResponse<Listing>>(`/listings/${id}`)
   return data.data
 }
 
diff --git a/frontend/src/features/listings/composables/useListingQuery.ts b/frontend/src/features/listings/composables/useListingQuery.ts
index 9eb91a4..5424116 100644
--- a/frontend/src/features/listings/composables/useListingQuery.ts
+++ b/frontend/src/features/listings/composables/useListingQuery.ts
@@ -1,5 +1,5 @@
 import { ref, onMounted, onBeforeUnmount, watch, type Ref } from 'vue'
-import { fetchListingsPage, type PublicListingItem, type PublicListingQuery } from '../api/listings'
+import { fetchListingsPage, type Listing, type PublicListingQuery } from '../api/listings'
 import type { HomeFilters } from './useHomeFilters'
 
 const homePageSize = 12
@@ -11,7 +11,7 @@ export function useListingQuery(
 ) {
   const loading = ref(false)
   const loadingMore = ref(false)
-  const listings = ref<PublicListingItem[]>([])
+  const listings = ref<Listing[]>([])
   const totalListings = ref(0)
   const zoneCounts = ref<Record<string, number>>({})
   const currentPage = ref(1)
diff --git a/frontend/src/shared/utils/listingDisplay.ts b/frontend/src/shared/utils/listingDisplay.ts
index 11676c1..5474e1d 100644
--- a/frontend/src/shared/utils/listingDisplay.ts
+++ b/frontend/src/shared/utils/listingDisplay.ts
@@ -1,4 +1,4 @@
-import type { PublicListingItem } from '@/features/listings/api/listings'
+import type { Listing, PublicListingItem } from '@/features/listings/api/listings'
 import { centToYuan } from '@/shared/utils/money'
 
 export interface ListingDisplayChip {