diff --git a/frontend/app/page.tsx b/frontend/app/page.tsx
index 40ae4f0..d399812 100644
--- a/frontend/app/page.tsx
+++ b/frontend/app/page.tsx
@@ -33,14 +33,14 @@ export default function HomePage() {
     if (activeCategory === "all") {
       return photos
     }
-    return photos.filter((photo) => photo.category === activeCategory)
+    return photos.filter((photo: Photo) => photo.category === activeCategory)
   }, [photos, activeCategory])
 
   const handleFilter = (category: string) => {
     setActiveCategory(category)
   }
 
-  const handlePhotoClick = (photo: any) => {
+  const handlePhotoClick = (photo: Photo) => {
     setSelectedPhoto(photo)
   }
 
@@ -51,7 +51,7 @@ export default function HomePage() {
   const handlePrevPhoto = () => {
     if (!selectedPhoto) return
     const currentPhotos = activeTab === "gallery" ? filteredPhotos : photos
-    const currentIndex = currentPhotos.findIndex((p) => p.id === selectedPhoto.id)
+    const currentIndex = currentPhotos.findIndex((p: Photo) => p.id === selectedPhoto.id)
     const prevIndex = currentIndex > 0 ? currentIndex - 1 : currentPhotos.length - 1
     setSelectedPhoto(currentPhotos[prevIndex])
   }
@@ -59,7 +59,7 @@ export default function HomePage() {
   const handleNextPhoto = () => {
     if (!selectedPhoto) return
     const currentPhotos = activeTab === "gallery" ? filteredPhotos : photos
-    const currentIndex = currentPhotos.findIndex((p) => p.id === selectedPhoto.id)
+    const currentIndex = currentPhotos.findIndex((p: Photo) => p.id === selectedPhoto.id)
     const nextIndex = currentIndex < currentPhotos.length - 1 ? currentIndex + 1 : 0
     setSelectedPhoto(currentPhotos[nextIndex])
   }
diff --git a/frontend/lib/queries.ts b/frontend/lib/queries.ts
index 370d6c9..97f9ebb 100644
--- a/frontend/lib/queries.ts
+++ b/frontend/lib/queries.ts
@@ -29,7 +29,7 @@ export const queryKeys = {
 export const usePhotos = () => {
   return useQuery({
     queryKey: queryKeys.photos,
-    queryFn: () => api.get('/photos'),
+    queryFn: (): Promise<Photo[]> => api.get('/photos'),
     staleTime: 5 * 60 * 1000, // 5分钟内不重新获取
   })
 }
@@ -38,7 +38,7 @@ export const usePhotos = () => {
 export const usePhoto = (id: number) => {
   return useQuery({
     queryKey: queryKeys.photo(id),
-    queryFn: () => api.get(`/photos/${id}`),
+    queryFn: (): Promise<Photo> => api.get(`/photos/${id}`),
     enabled: !!id,
   })
 }
@@ -47,7 +47,7 @@ export const usePhoto = (id: number) => {
 export const useCategories = () => {
   return useQuery({
     queryKey: queryKeys.categories,
-    queryFn: () => api.get('/categories'),
+    queryFn: (): Promise<string[]> => api.get('/categories'),
     staleTime: 10 * 60 * 1000, // 10分钟内不重新获取
   })
 }