diff --git a/pages/home/home.vue b/pages/home/home.vue
index fa81ab6..08f45d8 100644
--- a/pages/home/home.vue
+++ b/pages/home/home.vue
@@ -191,8 +191,7 @@
 import { FetchOpenId, FetchFindAllReaderBindByOpenId} from '@/api/user';
 import { FetchInitScreenBookRecommend } from '@/api/book';
 import config from '@/utils/config';
-
-const READLIST = 'reader-card-list';
+import { STORAGE_KEYS } from '@/utils/storage';
 
 export default {
 	data() {
@@ -283,17 +282,17 @@ export default {
           // 合并：默认在前，其他在后
           this.readerCardList = defaultCard ? [defaultCard, ...otherCards] : res.data;
           
-          uni.setStorageSync(READLIST, this.readerCardList);
-          uni.setStorageSync('currentReaderCard', defaultCard);
+          uni.setStorageSync(STORAGE_KEYS.READER_CARD_LIST, this.readerCardList);
+          uni.setStorageSync(STORAGE_KEYS.CURRENT_READER_CARD, defaultCard);
         } else {
           this.isBindLibraryCard = false;
           this.readerCardList = [];
-          uni.setStorageSync(READLIST, []);
+          uni.setStorageSync(STORAGE_KEYS.READER_CARD_LIST, []);
         }
 
       } catch (err) {
         console.error('初始化失败：', err);
-        const list = uni.getStorageSync(READLIST) || [];
+        const list = uni.getStorageSync(STORAGE_KEYS.READER_CARD_LIST) || [];
         // 同样默认排第一
         const defaultCard = list.find(item => item.bindDefault === true);
         const otherCards = list.filter(item => !item.bindDefault);
@@ -308,10 +307,12 @@ export default {
         const res = await FetchInitScreenBookRecommend({ libcode: '1201' });
         let books = res.data || [];
 
-        // 只遍历前3条，做Base64转换
+        // 只处理并展示前3条，避免setData数据过大
         const limit = 3;
-        for (let i = 0; i < books.length && i < limit; i++) {
-          let item = books[i];
+        const displayBooks = books.slice(0, limit);
+        
+        for (let i = 0; i < displayBooks.length; i++) {
+          let item = displayBooks[i];
           if (item.imgPath) {
             const imageUrl = this.baseUrl + '/api/fileRelevant/getImg?imgType=2&imgId=' + item.imgPath;
             try {
@@ -325,12 +326,8 @@ export default {
           }
         }
 
-        // 第3条之后直接赋空，用默认图
-        for (let i = limit; i < books.length; i++) {
-          books[i].base64Cover = '';
-        }
-
-        this.recommendedBooks = books;
+        // 只将展示所需的前3条数据放入响应式，减少setData传输量
+        this.recommendedBooks = displayBooks;
         this.isLoading = false;
       } catch (err) {
         console.error('获取图书推荐失败：', err);
diff --git a/pages/lendCar/lendCar.vue b/pages/lendCar/lendCar.vue
index 5234649..8f59835 100644
--- a/pages/lendCar/lendCar.vue
+++ b/pages/lendCar/lendCar.vue
@@ -44,7 +44,8 @@
 
 <script>
 import { FetchInitScreenSetting } from '@/api/user';
-import { FetchRdloanlist, FetchRenewbook } from '@/api/book';
+import { FetchRdloanlist, FetchRenewbook, FetchDeletebook } from '@/api/book';
+import { getCurrentReaderCard } from '@/utils/storage';
 
 export default {
   data() {
@@ -54,7 +55,7 @@ export default {
       screenConfig: {},
     };
   },
-  onLoad() {
+  onShow() {
     this.getConfigAndList();
   },
   computed: {
@@ -84,9 +85,13 @@ export default {
 
     async getLendingList() {
       try {
+        // 使用带缓存降级的函数获取读者证
+        const currentReaderCard = await getCurrentReaderCard();
+        console.log('当前证：', currentReaderCard);
+        
         const params = {
           ...this.screenConfig,
-          rdid: uni.getStorageSync('currentReaderCard'),
+          rdid: currentReaderCard.bindValue,
         };
         const res = await FetchRdloanlist(params);
         const result = typeof res.data === 'string' ? JSON.parse(res.data) : res.data;
@@ -127,9 +132,12 @@ export default {
       uni.showLoading({ title: '续借中...' });
 
       try {
+        // 使用带缓存降级的函数获取读者证
+        const currentReaderCard = await getCurrentReaderCard();
+        
         const params = {
           ...this.screenConfig,
-          rdid: uni.getStorageSync('currentReaderCard'),
+          rdid: currentReaderCard.bindValue,
           barcode: barcodes,
           logtype: '30007'
         };
diff --git a/pages/login/login.vue b/pages/login/login.vue
index c4b7172..dca8406 100644
--- a/pages/login/login.vue
+++ b/pages/login/login.vue
@@ -49,7 +49,7 @@
 // 引入绑定接口
 import { FetchInitScreenSetting, FetchReaderList, FetchBindReadCard,FetchFindAllReaderBindByOpenId  } from '@/api/user';
 import config from '@/utils/config';
-const READLIST = 'reader-card-list';
+import { STORAGE_KEYS } from '@/utils/storage';
 
 export default {
   data() {
@@ -220,9 +220,9 @@ export default {
             FetchFindAllReaderBindByOpenId(data).then(res => {
               console.log('获取读者证列表',res)
               if (res.code === 200 && res.data.length > 0) {
-                uni.setStorageSync(READLIST, res.data);
+                uni.setStorageSync(STORAGE_KEYS.READER_CARD_LIST, res.data);
               } else {
-                uni.setStorageSync(READLIST, []);
+                uni.setStorageSync(STORAGE_KEYS.READER_CARD_LIST, []);
               }
             })
             .catch(err => {
diff --git a/pages/user/user.vue b/pages/user/user.vue
index 124e49d..6ada29b 100644
--- a/pages/user/user.vue
+++ b/pages/user/user.vue
@@ -53,11 +53,11 @@
 </template>
 
 <script>
-import config from '@/utils/config'
-import { FetchBindRead, FetchFindAllReaderByOpenId } from '@/api/user';
+import config from '@/utils/config';
+import { FetchFindAllReaderByOpenId } from '@/api/user';
+import { getReaderCardList, STORAGE_KEYS } from '@/utils/storage';
 
-const USER_KEY = 'user-info';       
-const READLIST = 'reader-card-list';
+const USER_KEY = 'user-info';
 
 export default {
 	data() {
@@ -65,29 +65,31 @@ export default {
 			userInfo: {},
 			cardNo: "",
 			isBindLibraryCard: false,
-      base64Img: "",
+			base64Img: "",
+			loading: false,
 		};
 	},
 	onLoad() {
-		// this.loadUserInfo();
+		this.loadUserInfo();
 	},
 	onShow() {
 		this.loadUserInfo();
 	},
 	methods:{
-    toUserInfoPage() {
-      uni.navigateTo({
-        url: '/subpkg/pages/user-info/user-info'
-      });
-    },
+		toUserInfoPage() {
+			uni.navigateTo({
+				url: '/subpkg/pages/user-info/user-info'
+			});
+		},
 
-		// 加载用户信息（从接口获取）
 		async loadUserInfo() {
+			if (this.loading) return;
+			this.loading = true;
+
 			try {
-				const openId = uni.getStorageSync('wx_login_code');
-				const readerList = uni.getStorageSync(READLIST) || [];
+				const readerList = await getReaderCardList();
+				const openId = uni.getStorageSync(STORAGE_KEYS.WX_LOGIN_CODE);
 
-				// 从接口获取用户信息（昵称、头像）
 				if (openId) {
 					const res = await FetchFindAllReaderByOpenId({
 						libcode: '1201',
@@ -95,14 +97,20 @@ export default {
 					});
 
 					if (res.code === 200 && res.data) {
-						// 只赋值用户信息，不处理读者证
 						this.userInfo = {
-							nickname:  res.data.nickname || '',
-							avatarId:  res.data.avatar || ''
+							nickname: res.data.nickname || '',
+							avatarId: res.data.avatar || ''
 						};
-            const imageUrl = config.baseUrl + '/api/fileRelevant/getImg?imgType=5&imgId=' + res.data.avatar;
-            const base64 = await this.urlToBase64(imageUrl);
-            this.base64Img = base64;
+						
+						if (res.data.avatar) {
+							const imageUrl = config.baseUrl + '/api/fileRelevant/getImg?imgType=5&imgId=' + res.data.avatar;
+							try {
+								const base64 = await this.urlToBase64(imageUrl);
+								this.base64Img = base64;
+							} catch (err) {
+								console.error('[User] Failed to load avatar:', err);
+							}
+						}
 
 						uni.setStorageSync(USER_KEY, this.userInfo);
 					} else {
@@ -112,102 +120,97 @@ export default {
 					this.userInfo = uni.getStorageSync(USER_KEY) || {};
 				}
 
-				// 找到默认读者证
 				const defaultCard = readerList.find(item => item.bindDefault === true);
 				this.cardNo = defaultCard ? defaultCard.bindValue : (readerList[0]?.bindValue || '');
 				this.isBindLibraryCard = readerList.length > 0;
 
 			} catch (err) {
-				// 异常降级：读缓存
-				console.error('加载用户信息失败:', err)
-				const readerList = uni.getStorageSync(READLIST) || [];
+				console.error('[User] Failed to load user info:', err);
+				const readerList = uni.getStorageSync(STORAGE_KEYS.READER_CARD_LIST) || [];
 				this.userInfo = uni.getStorageSync(USER_KEY) || {};
 				const defaultCard = readerList.find(item => item.bindDefault === true);
 				this.cardNo = defaultCard ? defaultCard.bindValue : (readerList[0]?.bindValue || '');
 				this.isBindLibraryCard = readerList.length > 0;
+			} finally {
+				this.loading = false;
 			}
 		},
 
-		// 校验登录：只根据 有没有读者证 判断
-		toCheckLogin(pageName) {
-      const readerList = uni.getStorageSync(READLIST) || [];
-      
-      // 没有绑定读者证 → 弹窗
-      if (readerList.length === 0) {
-        this.dialogToggle();
-        return;
-      }
+		async toCheckLogin(pageName) {
+			const readerList = await getReaderCardList();
+			
+			if (readerList.length === 0) {
+				this.dialogToggle();
+				return;
+			}
 
-      // 已绑定 → 正常跳转
-      const routeMap = {
-        '收藏': '/subpkg/pages/collect-list/collect-list',
-        // 借阅：自动存 switch_tab_index = 0
-        '借阅': () => {
-          uni.setStorageSync('switch_tab_index', 0);
-          uni.navigateTo({
-            url: '/subpkg/pages/myLending/myLending'
-          });
-        },
-        '我的留言': '/subpkg/pages/feedback-list/feedback-list',
-        '解绑读者证': '/subpkg/pages/reader-card/reader-card'
-      }
+			const routeMap = {
+				'收藏': '/subpkg/pages/collect-list/collect-list',
+				'借阅': () => {
+					uni.setStorageSync('switch_tab_index', 0);
+					uni.navigateTo({
+						url: '/subpkg/pages/myLending/myLending'
+					});
+				},
+				'我的留言': '/subpkg/pages/feedback-list/feedback-list',
+				'解绑读者证': '/subpkg/pages/reader-card/reader-card'
+			};
 
-      const target = routeMap[pageName]
-      if (typeof target === 'function') {
-        target() // 执行借阅的逻辑（存值+跳转）
-      } else if (target) {
-        uni.navigateTo({ url: target })
-      }
-    },
+			const target = routeMap[pageName];
+			if (typeof target === 'function') {
+				target();
+			} else if (target) {
+				uni.navigateTo({ url: target });
+			}
+		},
 
 		dialogToggle() {
 			this.$refs.alertDialog.open();
 		},
+
 		dialogConfirm() {
 			uni.navigateTo({ url: "/pages/login/login" });
 		},
-    urlToBase64(url) {
-      return new Promise((resolve, reject) => {
-        uni.request({
-          url,
-          method: 'GET',
-          responseType: 'arraybuffer',
-          success: (res) => {
-            try {
-              const buffer = new Uint8Array(res.data);
-              let binary = '';
-              for (let i = 0; i < buffer.length; i++) {
-                binary += String.fromCharCode(buffer[i]);
-              }
-              const base64 = uni.arrayBufferToBase64(res.data);
-              const dataUri = 'data:image/jpeg;base64,' + base64;
-              resolve(dataUri);
-            } catch (e) {
-              reject(e);
-            }
-          },
-          fail: reject
-        });
-      });
-    },
 
 		dialogClose() {},
 
-		// 退出登录
+		urlToBase64(url) {
+			return new Promise((resolve, reject) => {
+				uni.request({
+					url,
+					method: 'GET',
+					responseType: 'arraybuffer',
+					success: (res) => {
+						try {
+							const base64 = uni.arrayBufferToBase64(res.data);
+							const dataUri = 'data:image/jpeg;base64,' + base64;
+							resolve(dataUri);
+						} catch (e) {
+							reject(e);
+						}
+					},
+					fail: (err) => {
+						console.error('[User] Failed to fetch image:', err);
+						reject(err);
+					}
+				});
+			});
+		},
+
 		toLogOut() {
 			uni.showModal({
 				title: '确认退出',
 				content: '确定要退出当前账号吗？',
 				success: (res) => {
 					if (res.confirm) {
-						// 清空缓存
 						uni.removeStorageSync(USER_KEY);
-						uni.removeStorageSync(READLIST);
+						uni.removeStorageSync(STORAGE_KEYS.READER_CARD_LIST);
+						uni.removeStorageSync(STORAGE_KEYS.CURRENT_READER_CARD);
 
-						// 重置
 						this.userInfo = {};
 						this.cardNo = "";
 						this.isBindLibraryCard = false;
+						this.base64Img = "";
 
 						uni.showToast({ title: '退出成功', icon: 'success' });
 						uni.switchTab({ url: "/pages/home/home" });
@@ -252,7 +255,7 @@ export default {
         width: 62px;
         height: 62px;
         border-radius: 50%;
-		    object-fit: cover;
+	    object-fit: cover;
       }
     }
     .user-info-text{
@@ -270,7 +273,6 @@ export default {
       .user-card{
         margin-top: 5px;
         font-size: 13px;
-        // font-weight: bold;
         color: #fff;
         line-height: 17px;
       }
@@ -337,4 +339,4 @@ export default {
     }
   }
 }
-</style>
\ No newline at end of file
+</style>
diff --git a/subpkg/pages/collect-list/collect-list.vue b/subpkg/pages/collect-list/collect-list.vue
index c847069..f5d7edf 100644
--- a/subpkg/pages/collect-list/collect-list.vue
+++ b/subpkg/pages/collect-list/collect-list.vue
@@ -10,7 +10,8 @@
 			<!-- 图书收藏 -->
 			<view v-if="activeTab === 1" class="tab-content">
 				<view class="empty" v-if="bookCollectList.length === 0">
-					暂无收藏的图书
+          <uni-icons style="margin-left: 20px;" custom-prefix="iconfont" type="icon-kongshuju" size="80"></uni-icons>
+          <text style="margin-top: 20px;">暂无收藏的图书~</text>
 				</view>
 				<view class="recommendation-list" v-else>
 					<view
@@ -32,7 +33,8 @@
 			<!-- 活动收藏 -->
 			<view v-if="activeTab === 2" class="tab-content">
 				<view class="empty" v-if="activityCollectList.length === 0">
-					暂无收藏的活动
+          <uni-icons style="margin-left: 20px;" custom-prefix="iconfont" type="icon-kongshuju" size="80"></uni-icons>
+          <text style="margin-top: 20px;">暂无收藏的活动~</text>
 				</view>
 				<view class="activity-list" v-else>
 					<view
diff --git a/subpkg/pages/myLending/myLending.vue b/subpkg/pages/myLending/myLending.vue
index b844c49..27a401f 100644
--- a/subpkg/pages/myLending/myLending.vue
+++ b/subpkg/pages/myLending/myLending.vue
@@ -70,6 +70,7 @@ import { FetchInitScreenSetting } from '@/api/user';
 import { FetchHistoryloan, FetchRdloanlist, FetchCoverByISBN } from '@/api/book';
 import myTabs from "@/components/my-tabs/my-tabs.vue";
 import lendingListItem from "@/components/lending-list-item/lending-list-item.vue";
+import { getCurrentReaderCard } from '@/utils/storage';
 
 export default {
   components: { myTabs, lendingListItem },
@@ -172,9 +173,12 @@ export default {
       }
 
       try {
+        // 使用带缓存降级的函数获取读者证
+        const currentReaderCard = await getCurrentReaderCard();
+        
         const params = {
           ...this.screenConfig,
-          rdid: uni.getStorageSync('currentReaderCard'),
+          rdid: currentReaderCard.bindValue,
           logtype: '30002',
           page: this.pageAll,
           rows: 10,
@@ -205,9 +209,12 @@ export default {
     async getLendingList() {
       this.loadingLending = true;
       try {
+        // 使用带缓存降级的函数获取读者证
+        const currentReaderCard = await getCurrentReaderCard();
+        
         const params = {
           ...this.screenConfig,
-          rdid: uni.getStorageSync('currentReaderCard'),
+          rdid: currentReaderCard.bindValue,
         };
         const res = await FetchRdloanlist(params);
         const result = typeof res.data === 'string' ? JSON.parse(res.data) : res.data;
diff --git a/subpkg/pages/reader-card/reader-card.vue b/subpkg/pages/reader-card/reader-card.vue
index 5eb8cec..9aa7e65 100644
--- a/subpkg/pages/reader-card/reader-card.vue
+++ b/subpkg/pages/reader-card/reader-card.vue
@@ -72,8 +72,7 @@ import {
   FetchSetDefaultReadCard,
   FetchUnbindReadCard 
 } from '@/api/user';
-
-const READLIST = 'reader-card-list';
+import { getReaderCardList, getOpenId, setCurrentReaderCard, STORAGE_KEYS } from '@/utils/storage';
 
 export default {
 	data() {
@@ -81,61 +80,50 @@ export default {
       isEditMode: false,
       selectedValue: '',
       cardList: [],
-      qrcodeText: '' // 二维码内容
+      qrcodeText: '',
+      loading: false,
 		}
 	},
   onShow() {
     this.getBindReaderCardList();
   },
 	methods: {
-    // 格式化读者证号
     formatCardNo(cardNo) {
       if (!cardNo) return '';
       const str = String(cardNo);
       const len = str.length;
 
       if (len > 8) {
-        // 前2位 + 中间全部* + 后2位
         const front = str.substring(0, 2);
         const end = str.substring(len - 2);
-        const star = '*'.repeat(len - 4); // 中间全部隐藏
+        const star = '*'.repeat(len - 4);
         return front + star + end;
       } else {
-        // 小于等于8：*** + 后2位
         return '***' + str.substring(len - 2);
       }
     },
-    // 切换编辑模式 + 清空选中
+
     toggleEditMode() {
       this.isEditMode = !this.isEditMode;
       this.selectedValue = '';
     },
 
-    // 获取列表
-    async getBindReaderCardList() {
+    async getBindReaderCardList(forceRefresh = false) {
+      if (this.loading) return;
+      this.loading = true;
+
       try {
-        const openId = uni.getStorageSync('wx_login_code');
-        if (!openId) return;
-
-        const res = await FetchFindAllReaderBindByOpenId({
-          libcode: '1201',
-          openId: openId
-        });
-
-        if (res.code === 200 && res.data.length > 0) {
-          this.cardList = res.data;
-          uni.setStorageSync(READLIST, res.data);
-        } else {
-          this.cardList = [];
-          this.selectedValue = '';
-          uni.setStorageSync(READLIST, []);
-        }
+        const readerList = await getReaderCardList(forceRefresh);
+        this.cardList = readerList;
       } catch (err) {
-        this.cardList = uni.getStorageSync(READLIST) || [];
+        console.error('[ReaderCard] Failed to load reader card list:', err);
+        const cachedList = uni.getStorageSync(STORAGE_KEYS.READER_CARD_LIST) || [];
+        this.cardList = cachedList;
+      } finally {
+        this.loading = false;
       }
     },
 
-    // 点击卡片（仅编辑模式使用）
     handleSelectItem(value) {
       if (this.isEditMode) {
         this.selectedValue = this.selectedValue === value ? '' : value;
@@ -149,7 +137,12 @@ export default {
         return;
       }
 
-      const openId = uni.getStorageSync('wx_login_code');
+      const openId = await getOpenId();
+      if (!openId) {
+        uni.showToast({ title: '获取用户信息失败', icon: 'none' });
+        return;
+      }
+
       uni.showModal({
         title: '提示',
         content: '确定设为默认读者证吗？',
@@ -162,35 +155,40 @@ export default {
               libcode: '1201',
               openid: openId
             });
-            uni.setStorageSync('currentReaderCard', value);
-            await this.getBindReaderCardList();
+            setCurrentReaderCard(value);
+            await this.getBindReaderCardList(true);
             uni.showToast({ title: '设置成功', icon: 'success' });
           } catch (err) {
+            console.error('[ReaderCard] Failed to set default card:', err);
             uni.showToast({ title: '设置失败', icon: 'none' });
           }
         }
       });
     },
 
-    // ========== 新功能：显示二维码 ==========
     showQrcode(bindValue) {
       this.qrcodeText = bindValue;
       this.$refs.popup.open();
     },
+
     closePopup() {
       console.log('关闭弹窗');
       this.qrcodeText = '';
       this.$refs.popup.close();
     },
 
-    // 解绑（不变）
     async handleUnbind() {
       if (!this.selectedValue) {
         uni.showToast({ title: '请选择要解绑的读者证', icon: 'none' });
         return;
       }
 
-      const openId = uni.getStorageSync('wx_login_code');
+      const openId = await getOpenId();
+      if (!openId) {
+        uni.showToast({ title: '获取用户信息失败', icon: 'none' });
+        return;
+      }
+
       const unbindItem = this.cardList.find(item => item.bindValue === this.selectedValue);
       const isUnbindDefault = unbindItem?.bindDefault === true;
 
@@ -211,7 +209,7 @@ export default {
             if (result.code === 200) {
               uni.showToast({ title: '解绑成功', icon: 'success' });
               this.selectedValue = '';
-              await this.getBindReaderCardList();
+              await this.getBindReaderCardList(true);
 
               if (isUnbindDefault && this.cardList.length > 0) {
                 const newValue = this.cardList[0].bindValue;
@@ -221,8 +219,8 @@ export default {
                   libcode: '1201',
                   openid: openId
                 });
-                uni.setStorageSync('currentReaderCard', newValue);
-                await this.getBindReaderCardList();
+                setCurrentReaderCard(newValue);
+                await this.getBindReaderCardList(true);
               }
 
               if (this.cardList.length === 0) {
@@ -230,6 +228,7 @@ export default {
               }
             }
           } catch (err) {
+            console.error('[ReaderCard] Failed to unbind card:', err);
             uni.showToast({ title: '解绑失败', icon: 'none' });
           }
         }
@@ -264,7 +263,6 @@ export default {
     font-size: 15px;
   }
   
-  // 读者证列表
   .card-list{
     position: absolute;
     left: 0;
@@ -318,7 +316,7 @@ export default {
           width: 46px;
           font-size: 12px;
           color: #01a4fe;
-          border: 1px solid #01a4fe;
+          border:1px solid #01a4fe;
           border-radius: 4px;
           padding: 2px 0;
           text-align: center;
@@ -329,7 +327,6 @@ export default {
     }
   }
 
-
   .add-card-btn {
     display: flex;
     align-items: center;
@@ -378,4 +375,4 @@ export default {
     color: #999 !important;
   }
 }
-</style>
\ No newline at end of file
+</style>
diff --git a/utils/storage.js b/utils/storage.js
new file mode 100644
index 0000000..3bb0c1e
--- /dev/null
+++ b/utils/storage.js
@@ -0,0 +1,181 @@
+/**
+ * 缓存工具函数
+ * 提供缓存降级策略：先从缓存获取，缓存不存在则调用接口重新获取
+ */
+import { FetchOpenId, FetchFindAllReaderBindByOpenId } from '@/api/user';
+
+// 缓存键名常量
+export const STORAGE_KEYS = {
+  CURRENT_READER_CARD: 'currentReaderCard',
+  READER_CARD_LIST: 'readList',
+  WX_LOGIN_CODE: 'wx_login_code',
+};
+
+/**
+ * 获取微信 openId（带缓存降级）
+ * 参考 home.vue 中的 initUserAndCheckBind 方法
+ * @returns {Promise<string|null>} 微信 openId
+ */
+export async function getOpenId() {
+  try {
+    // 1. 先看缓存有没有 openId
+    let openId = uni.getStorageSync(STORAGE_KEYS.WX_LOGIN_CODE);
+    
+    // 2. 有缓存，直接返回
+    if (openId) {
+      return openId;
+    }
+    
+    // 3. 没有 → 走微信登录流程
+    const loginRes = await new Promise((resolve, reject) => {
+      uni.login({
+        success: resolve,
+        fail: reject
+      });
+    });
+
+    if (!loginRes.code) {
+      console.warn('[Storage] WeChat login failed');
+      return null;
+    }
+
+    // 4. 获取 openId
+    const openRes = await FetchOpenId({
+      libcode: '1201',
+      code: loginRes.code
+    });
+
+    if (openRes.code !== 200 || !openRes.data) {
+      console.warn('[Storage] Failed to fetch openId');
+      return null;
+    }
+
+    openId = openRes.data;
+    uni.setStorageSync(STORAGE_KEYS.WX_LOGIN_CODE, openId);
+    
+    return openId;
+  } catch (err) {
+    console.error('[Storage] Error in getOpenId:', err);
+    return null;
+  }
+}
+
+/**
+ * 获取当前读者证信息（带缓存降级）
+ * @returns {Promise<Object|null>} 当前读者证信息
+ */
+export async function getCurrentReaderCard() {
+  // 1. 先从缓存获取
+  const cachedCard = uni.getStorageSync(STORAGE_KEYS.CURRENT_READER_CARD);
+  
+  // 2. 如果缓存存在且有效，直接返回
+  if (cachedCard && Object.keys(cachedCard).length > 0) {
+    return cachedCard;
+  }
+  
+  // 3. 缓存不存在，尝试从接口获取
+  try {
+    // 使用带缓存降级的函数获取 openId
+    const openId = await getOpenId();
+    
+    if (!openId) {
+      console.warn('[Storage] No openId found, cannot fetch reader card');
+      return null;
+    }
+    
+    const res = await FetchFindAllReaderBindByOpenId({
+      libcode: '1201',
+      openId: openId
+    });
+    
+    if (res.code === 200 && res.data.length > 0) {
+      // 默认证排第一位
+      const defaultCard = res.data.find(item => item.bindDefault === true);
+      const otherCards = res.data.filter(item => !item.bindDefault);
+      // 合并：默认在前，其他在后
+      const readerCardList = defaultCard ? [defaultCard, ...otherCards] : res.data;
+      const resultCard = defaultCard || res.data[0];
+      
+      // 更新缓存
+      uni.setStorageSync(STORAGE_KEYS.CURRENT_READER_CARD, resultCard);
+      uni.setStorageSync(STORAGE_KEYS.READER_CARD_LIST, readerCardList);
+      
+      return resultCard;
+    }
+  } catch (err) {
+    console.error('[Storage] Failed to fetch reader card:', err);
+  }
+  
+  return null;
+}
+
+/**
+ * 获取读者证列表（带缓存降级）
+ * @param {boolean} forceRefresh - 是否强制刷新，默认 false
+ * @returns {Promise<Array>} 读者证列表
+ */
+export async function getReaderCardList(forceRefresh = false) {
+  // 1. 如果不是强制刷新，先从缓存获取
+  if (!forceRefresh) {
+    const cachedList = uni.getStorageSync(STORAGE_KEYS.READER_CARD_LIST);
+    
+    // 如果缓存存在且有效，直接返回
+    if (cachedList && Array.isArray(cachedList) && cachedList.length > 0) {
+      return cachedList;
+    }
+  }
+  
+  // 2. 缓存不存在或强制刷新时，尝试从接口获取
+  try {
+    // 使用带缓存降级的函数获取 openId
+    const openId = await getOpenId();
+    
+    if (!openId) {
+      console.warn('[Storage] No openId found, cannot fetch reader card list');
+      return [];
+    }
+    
+    const res = await FetchFindAllReaderBindByOpenId({
+      libcode: '1201',
+      openId: openId
+    });
+    
+    if (res.code === 200 && res.data.length > 0) {
+      // 默认证排第一位
+      const defaultCard = res.data.find(item => item.bindDefault === true);
+      const otherCards = res.data.filter(item => !item.bindDefault);
+      // 合并：默认在前，其他在后
+      const readerCardList = defaultCard ? [defaultCard, ...otherCards] : res.data;
+      
+      // 更新缓存
+      uni.setStorageSync(STORAGE_KEYS.READER_CARD_LIST, readerCardList);
+      
+      // 同时更新当前读者证
+      if (defaultCard) {
+        uni.setStorageSync(STORAGE_KEYS.CURRENT_READER_CARD, defaultCard);
+      }
+      
+      return readerCardList;
+    }
+  } catch (err) {
+    console.error('[Storage] Failed to fetch reader card list:', err);
+  }
+  
+  return [];
+}
+
+/**
+ * 设置当前读者证
+ * @param {Object} card - 读者证信息
+ */
+export function setCurrentReaderCard(card) {
+  uni.setStorageSync(STORAGE_KEYS.CURRENT_READER_CARD, card);
+}
+
+/**
+ * 清除读者证相关缓存
+ */
+export function clearReaderCardCache() {
+  uni.removeStorageSync(STORAGE_KEYS.CURRENT_READER_CARD);
+  uni.removeStorageSync(STORAGE_KEYS.READER_CARD_LIST);
+}