diff --git a/index.html b/index.html
index 79eac0e..5dcbccd 100644
--- a/index.html
+++ b/index.html
@@ -85,6 +85,9 @@
       // 防抖多次点击
       let isClickable = true;
 
+      // 记录页面打开时间
+      const pageOpenTime = getBeijingTime();
+
       // 获取北京时间（东八区）的函数
       function getBeijingTime() {
         const date = new Date();
@@ -92,8 +95,21 @@
         return beijingTime.toISOString();
       }
 
-      // 记录页面打开时间
-      const pageOpenTime = getBeijingTime();
+      // 缓存键名
+      const CACHE_KEY = 'landing_image';
+
+      // 从缓存获取落地图
+      function getLandingImageFromCache() {
+        const cached = localStorage.getItem(CACHE_KEY);
+        return cached ? JSON.parse(cached) : null;
+      }
+
+      // 将落地图存入缓存
+      function saveLandingImageToCache(imageUrl) {
+        localStorage.setItem(CACHE_KEY, JSON.stringify({
+          url: imageUrl,
+        }));
+      }
 
       // 获取图片方法
       async function getImage() {
@@ -106,25 +122,51 @@
             };
           } else {
             console.warn('网络错误，请稍后重试');
+            return null;
           }
         } catch (error) {
           console.error('网络错误，请稍后重试');
+          return {
+            landingImageUrl: './assent/8折页面.png', 
+            popupImageUrl: './assent/弹窗样式2.png'
+          };
         }
       }
 
       // 加载
       window.onload = async function () {
         try {
+          // 缓存
+          const cachedImage = getLandingImageFromCache();
+
+          // 接口
           const imagePaths = await getImage();
-          // landingImage.src = imagePaths.landingImageUrl;
-          // popupImage.src = imagePaths.popupImageUrl;
-          landingImage.src = './assent/8折页面.png';
-          popupImage.src = './assent/弹窗样式2.png';
-
-          // 弹窗展示
-          setTimeout(() => {
-            popup.classList.add("show");
-          }, 500);
+
+          // 确定最终落地图和是否展示弹窗
+          let finalLandingUrl;
+          let shouldShowPopup = false;
+
+          if (imagePaths?.landingImageUrl) {
+            finalLandingUrl = imagePaths.landingImageUrl;
+            if (!cachedImage || cachedImage.url !== finalLandingUrl) {
+              shouldShowPopup = true;
+              saveLandingImageToCache(finalLandingUrl);
+              popupImage.src = imagePaths.popupImageUrl;
+            }
+          } else {
+            // 接口失败时使用缓存（如果有）
+            finalLandingUrl = cachedImage?.url;
+          }
+
+          // 4. 设置落地图
+          landingImage.src = finalLandingUrl;
+
+          // 5. 新增：根据对比结果决定是否展示弹窗
+          if (shouldShowPopup) {
+            setTimeout(() => {
+              popup.classList.add("show");
+            }, 500);
+          }
         } catch (err) {
           console.error('页面初始化失败');
         }