1.暂时不从缓存取轮播图

src/contexts/ThemeContext.tsx

@@ -82,33 +82,15 @@ export const ThemeProvider: React.FC<{ children: ReactNode }> = ({ children }) =
     return localStorage.getItem('vista_custom_footer_logo') || null;
   });
 
-  const [heroImages, setHeroImages] = useState<string[]>(() => {
-    const saved = localStorage.getItem('vista_hero_images');
-    return saved ? JSON.parse(saved) : HERO_IMAGES;
-  });
+  const [heroImages, setHeroImages] = useState<string[]>(HERO_IMAGES);
 
-  // Fetch hero images from API when component mounts
+  // Fetch hero images from API on every page refresh
   useEffect(() => {
-    // Check if we already have hero images in localStorage to avoid unnecessary API calls
-    const savedImages = localStorage.getItem('vista_hero_images');
-    if (savedImages) {
-      return; // Skip API call if we already have images saved
-    }
-
     const loadHeroImagesFromApi = async () => {
-      // Add a flag to prevent duplicate API calls in React Strict Mode
-      const apiCallFlag = 'vista_hero_images_api_called';
-      if (sessionStorage.getItem(apiCallFlag)) {
-        return; // Skip if we already made the call in this session
-      }
-
       try {
         // Import the functions dynamically to avoid circular dependencies
         const { fetchHotArticles, extractHeroImagesFromArticles } = 
             await import('../services/articleService.ts');
-        
-        // Mark that we're making the API call
-        sessionStorage.setItem(apiCallFlag, 'true');
 
         // Fetch hot articles from the API
         const articlesData = await fetchHotArticles(1, 6);
@@ -119,20 +101,17 @@ export const ThemeProvider: React.FC<{ children: ReactNode }> = ({ children }) =
         // If we got images from the API, use them
         if (apiHeroImages.length > 0) {
           setHeroImages(apiHeroImages);
-          // Save to localStorage so we don't fetch on every page load
-          localStorage.setItem('vista_hero_images', JSON.stringify(apiHeroImages));
         }
-        // Otherwise, keep the default HERO_IMAGES or saved images
+        // Otherwise, keep the default HERO_IMAGES
       } catch (error) {
         console.error('Failed to fetch hero images from API:', error);
-        // Fallback to existing images if API fails
-        // Clear the flag if the API call failed so we can try again
-        sessionStorage.removeItem('vista_hero_images_api_called');
+        // Fallback to default HERO_IMAGES if API fails
+        setHeroImages(HERO_IMAGES);
       }
     };
 
     loadHeroImagesFromApi();
-  }, []); // Empty dependency array means this runs only once when component mounts
+  }, []); // Empty dependency array means this runs on every component mount (page refresh)
 
   // --- Content Sections ---
   const [itineraries, setItineraries] = useState<Itinerary[]>(() => {
@@ -171,9 +150,7 @@ export const ThemeProvider: React.FC<{ children: ReactNode }> = ({ children }) =
     else localStorage.removeItem('vista_custom_footer_logo');
   }, [customFooterLogo]);
 
-  useEffect(() => {
-    localStorage.setItem('vista_hero_images', JSON.stringify(heroImages));
-  }, [heroImages]);
+
 
   useEffect(() => {
     localStorage.setItem('vista_itineraries', JSON.stringify(itineraries));