diff --git a/script.js b/script.js
index 2b44a35..b9271a3 100644
--- a/script.js
+++ b/script.js
@@ -402,9 +402,15 @@ const indexedDBStorage = {
             const transaction = this.db.transaction([CONFIG.INDEXED_DB.STORES.GENERATED_IMAGES], 'readwrite');
             const store = transaction.objectStore(CONFIG.INDEXED_DB.STORES.GENERATED_IMAGES);
             
+            // 检查是否是Blob URL，如果是则获取原始base64数据
+            let storedUrl = imageUrl;
+            if (imageUrl.startsWith('blob:') && imageUrl._originalBase64) {
+                storedUrl = imageUrl._originalBase64;
+            }
+            
             const image = {
                 imageId: imageId,
-                url: imageUrl,
+                url: storedUrl,
                 timestamp: Date.now()
             };
 
@@ -708,7 +714,7 @@ const apiService = {
             const messageContent = choice.message.content;
             const images = [];
             
-            // 提取图像数据并转换为Blob URL
+            // 提取图像数据并转换为Blob URL，但保留原始base64数据
             if (choice.message.images) {
                 choice.message.images.forEach(img => {
                     const blobUrl = utils.base64ToBlobUrl(img.image_url.url);
@@ -814,7 +820,7 @@ const uiController = {
         
         const imageId = Date.now() + Math.random();
         
-        // 确保imageUrl是Blob URL
+        // 确保imageUrl是Blob URL用于显示，但保存原始URL用于存储
         const displayUrl = imageUrl.startsWith('blob:') ? imageUrl : utils.base64ToBlobUrl(imageUrl);
         
         imageDiv.innerHTML = `
@@ -928,7 +934,7 @@ const uiController = {
         placeholder.className = 'image-item fade-in';
         placeholder.id = '';
         
-        // 确保imageUrl是Blob URL
+        // 确保imageUrl是Blob URL用于显示，但保存原始URL用于存储
         const displayUrl = imageUrl.startsWith('blob:') ? imageUrl : utils.base64ToBlobUrl(imageUrl);
         
         placeholder.innerHTML = `
@@ -1050,8 +1056,9 @@ const uiController = {
             // 找到当前图像在generatedImages中的索引
             currentImageIndex = generatedImages.findIndex(img => img.url === imageUrl);
             
-            // 设置图像源
-            modalImage.src = imageUrl;
+            // 设置图像源 - 确保正确处理base64和Blob URL
+            const displayUrl = imageUrl.startsWith('blob:') ? imageUrl : utils.base64ToBlobUrl(imageUrl);
+            modalImage.src = displayUrl;
             modalImage.onerror = function() {
                 utils.showNotification('图像加载失败', 'danger');
             };
@@ -1280,7 +1287,11 @@ const uiController = {
         const deleteButton = document.getElementById('viewerDeleteImage');
         
         if (modalImage && generatedImages[currentImageIndex]) {
-            modalImage.src = generatedImages[currentImageIndex].url;
+            // 确保正确处理base64和Blob URL
+            const displayUrl = generatedImages[currentImageIndex].url.startsWith('blob:') ?
+                generatedImages[currentImageIndex].url :
+                utils.base64ToBlobUrl(generatedImages[currentImageIndex].url);
+            modalImage.src = displayUrl;
             
             // 更新删除按钮对应的图像ID
             if (deleteButton) {
@@ -1295,7 +1306,10 @@ const uiController = {
                             currentImageIndex = generatedImages.length - 1;
                         }
                         if (currentImageIndex >= 0 && currentImageIndex < generatedImages.length) {
-                            modalImage.src = generatedImages[currentImageIndex].url;
+                            const newDisplayUrl = generatedImages[currentImageIndex].url.startsWith('blob:') ?
+                                generatedImages[currentImageIndex].url :
+                                utils.base64ToBlobUrl(generatedImages[currentImageIndex].url);
+                            modalImage.src = newDisplayUrl;
                             deleteButton.onclick = arguments.callee;
                         }
                         uiController.updateNavigationButtons();
@@ -1367,7 +1381,7 @@ const uiController = {
     displayImagePreview: function(imageData) {
         const preview = document.getElementById('imagePreview');
         
-        // 确保图像数据是Blob URL
+        // 确保图像数据是Blob URL用于显示，但保持原始数据用于其他操作
         const displayUrl = imageData.data.startsWith('blob:') ? imageData.data : utils.base64ToBlobUrl(imageData.data);
         
         preview.innerHTML = `
@@ -1494,8 +1508,11 @@ const uiController = {
                 const imageDiv = document.createElement('div');
                 imageDiv.className = 'image-item fade-in';
                 
+                // 确保从IndexedDB加载的base64数据转换为Blob URL用于显示
+                const displayUrl = img.url.startsWith('blob:') ? img.url : utils.base64ToBlobUrl(img.url);
+                
                 imageDiv.innerHTML = `
-                    <img src="${img.url}" alt="Generated Image" loading="lazy" class="generated-image">
+                    <img src="${displayUrl}" alt="Generated Image" loading="lazy" class="generated-image">
                     <div class="image-overlay">
                         <div class="btn-grid">
                             <div class="btn-grid-row">