首页商品：对齐门店「当次会话」——首次进入 / 城市变化 / 登录态变化 / 下拉刷新才拉列表，切 Tab 不再重复请求；退出登录会清缓存。

核销成功时间：按 Asia/Shanghai 格式化为「2026年8月3日 13点45分」。
核销码编号：单行省略显示，双击复制（有「双击复制」提示）。

apps/mini-user/src/lib/api.ts

@@ -2,6 +2,7 @@ import Taro from '@tarojs/taro';
 import { ClientApp } from '@dukang/shared-types';
 import { forceReloadAfterAccountMerge } from './auth-nav';
 import { resetStoresSessionBootstrap } from './stores-session';
+import { resetHomeCatalogBootstrap } from './home-catalog-session';
 
 function resolveApiBase(): string {
   const origin =
@@ -57,8 +58,9 @@ export function isLoggedIn(): boolean {
 
 export function logout() {
   clearAuth();
-  // 主动退出才重置门店「当次登录」会话；401 清 token 不要打断门店筛选
+  // 主动退出才重置门店/首页「当次登录」会话；401 清 token 不要打断筛选
   resetStoresSessionBootstrap();
+  resetHomeCatalogBootstrap();
   Taro.reLaunch({ url: '/pages/home/index' });
 }
 

apps/mini-user/src/lib/home-catalog-session.ts

@@ -0,0 +1,75 @@
+/**
+ * 首页商品列表「当次登录」会话 —— 切 tab 不重复拉商品；
+ * 城市 / 登录态变化或下拉刷新时再请求。logout 时 clear。
+ */
+
+import Taro from '@tarojs/taro';
+
+export type HomeCatalogCache = {
+  cityCode: string;
+  authKey: string;
+  products: unknown[];
+};
+
+type HomeSession = {
+  bootstrapped: boolean;
+  cache: HomeCatalogCache | null;
+};
+
+const STORAGE_KEY = 'dukang_home_catalog_session_v1';
+
+let memory: HomeSession | null = null;
+
+function emptySession(): HomeSession {
+  return { bootstrapped: false, cache: null };
+}
+
+function readSession(): HomeSession {
+  if (memory) return memory;
+  try {
+    const raw = Taro.getStorageSync(STORAGE_KEY);
+    if (!raw) {
+      memory = emptySession();
+      return memory;
+    }
+    const parsed = (typeof raw === 'string' ? JSON.parse(raw) : raw) as Partial<HomeSession>;
+    memory = {
+      bootstrapped: !!parsed.bootstrapped,
+      cache: (parsed.cache as HomeCatalogCache | null) ?? null,
+    };
+    return memory;
+  } catch {
+    memory = emptySession();
+    return memory;
+  }
+}
+
+function writeSession(next: HomeSession) {
+  memory = next;
+  try {
+    Taro.setStorageSync(STORAGE_KEY, JSON.stringify(next));
+  } catch {
+    /* ignore quota */
+  }
+}
+
+export function isHomeCatalogBootstrapped(): boolean {
+  return readSession().bootstrapped;
+}
+
+export function getHomeCatalogCache(): HomeCatalogCache | null {
+  return readSession().cache;
+}
+
+export function setHomeCatalogCache(cache: HomeCatalogCache): void {
+  writeSession({ bootstrapped: true, cache });
+}
+
+export function resetHomeCatalogBootstrap(): void {
+  memory = emptySession();
+  try {
+    Taro.removeStorageSync(STORAGE_KEY);
+  } catch {
+    /* ignore */
+  }
+}

apps/mini-user/src/pages/home/index.tsx

@@ -1,4 +1,4 @@
-import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
+import { useCallback, useMemo, useRef, useState } from 'react';
 import { View, Text, Image, Swiper, SwiperItem } from '@tarojs/components';
 import Taro, {
   useDidShow,
@@ -13,7 +13,12 @@ import CouponBadge from '../../components/CouponBadge';
 import WechatShareReady from '../../components/WechatShareReady';
 import UserTabBar, { shouldRenderPageTabBar, syncTabBarSelected } from '../../components/UserTabBar';
 import { goLogin } from '../../lib/auth-nav';
-import { isLoggedIn, request, toast } from '../../lib/api';
+import { getToken, isLoggedIn, request, toast } from '../../lib/api';
+import {
+  getHomeCatalogCache,
+  isHomeCatalogBootstrapped,
+  setHomeCatalogCache,
+} from '../../lib/home-catalog-session';
 import { ensurePayReady } from '../../lib/pay-ready';
 import { capturePromoSceneAndTouchScan } from '../../lib/promo';
 import { getProductMainImage } from '../../lib/product-images';
@@ -29,7 +34,6 @@ import {
   DEFAULT_SHARE_TITLE,
   toWeappShareMessage,
 } from '../../lib/wechat-share';
-
 type Product = {
   id: string;
   name: string;
@@ -110,35 +114,60 @@ export default function HomePage() {
       });
   }, []);
 
-  const loadProducts = useCallback(() => {
+  const applyProductList = useCallback((list: Product[], nextCode: string, authKey: string) => {
+    const normalized = Array.isArray(list) ? list.map((p) => normalizeFulfillmentFlags(p)) : [];
+    setProducts(normalized);
+    setHomeCatalogCache({ cityCode: nextCode, authKey, products: normalized });
+  }, []);
+
+  const fetchProducts = useCallback(
+    (nextCode: string, authKey: string) => {
       setLoading(true);
-    return request<Product[]>(`/catalog/products?cityCode=${encodeURIComponent(cityCode)}`)
+      return request<Product[]>(`/catalog/products?cityCode=${encodeURIComponent(nextCode)}`)
-      .then((list) =>
+        .then((list) => applyProductList(list, nextCode, authKey))
-        setProducts(Array.isArray(list) ? list.map((p) => normalizeFulfillmentFlags(p)) : []),
-      )
         .catch((e) => toast(e instanceof Error ? e.message : '加载失败'))
         .finally(() => setLoading(false));
-  }, [cityCode]);
+    },
+    [applyProductList],
+  );
 
+  /**
+   * 首次进入 / 城市或登录态变化：拉商品。
+   * 同次再切 tab：只同步选中态，不重复请求（对齐门店页）。
+   */
   useDidShow(() => {
     syncTabBarSelected(0);
     void capturePromoSceneAndTouchScan();
     void loadMiniHome();
-    // 白名单商品按登录手机号过滤；登录后 switchTab 回首页不会卸载页面，须重新拉列表
-    void loadProducts();
-    void resolveUserCity().then((resolved) => {
-      setDisplayCity(resolved.displayCity);
-      setCityCode(getCityCodeForCatalog(resolved));
-    });
-  });
 
-  useEffect(() => {
+    const authKey = getToken() || '';
-    void loadProducts();
+    void (async () => {
-  }, [loadProducts]);
+      const resolved = await resolveUserCity();
+      const nextCode = getCityCodeForCatalog(resolved);
+      setDisplayCity(resolved.displayCity);
+      setCityCode(nextCode);
+
+      const cache = getHomeCatalogCache();
+      if (
+        isHomeCatalogBootstrapped() &&
+        cache &&
+        cache.cityCode === nextCode &&
+        cache.authKey === authKey &&
+        Array.isArray(cache.products)
+      ) {
+        setProducts(cache.products as Product[]);
+        setLoading(false);
+        return;
+      }
+
+      await fetchProducts(nextCode, authKey);
+    })();
+  });
 
   usePullDownRefresh(() => {
     void (async () => {
       try {
+        const authKey = getToken() || '';
         const resolved = await resolveUserCity();
         setDisplayCity(resolved.displayCity);
         const nextCode = getCityCodeForCatalog(resolved);
@@ -148,7 +177,11 @@ export default function HomePage() {
           request<Product[]>(`/catalog/products?cityCode=${encodeURIComponent(nextCode)}`),
           loadMiniHome(),
         ]);
-        setProducts(Array.isArray(list) ? list.map((p) => normalizeFulfillmentFlags(p)) : []);
+        applyProductList(
+          Array.isArray(list) ? list : [],
+          nextCode,
+          authKey,
+        );
       } catch (e) {
         toast(e instanceof Error ? e.message : '加载失败');
       } finally {
@@ -157,7 +190,6 @@ export default function HomePage() {
       }
     })();
   });
-
   function openProductDetail(id: string) {
     Taro.navigateTo({ url: `/pages/product-detail/index?id=${id}` });
   }

apps/mini-user/src/pages/redeem-code/index.tsx

@@ -44,6 +44,20 @@ export default function RedeemCodePage() {
   const [timerSec, setTimerSec] = useState(REDEEM_TOKEN_TTL_SECONDS);
   const timerRef = useRef<ReturnType<typeof setInterval> | null>(null);
   const successHandled = useRef(false);
+  const lastTokenTapAt = useRef(0);
+
+  function onTokenTap() {
+    if (!token) return;
+    const now = Date.now();
+    if (now - lastTokenTapAt.current < 350) {
+      lastTokenTapAt.current = 0;
+      void Taro.setClipboardData({ data: token })
+        .then(() => toast('核销码编号已复制', 'success'))
+        .catch(() => toast('复制失败'));
+      return;
+    }
+    lastTokenTapAt.current = now;
+  }
 
   const stopTimer = useCallback(() => {
     if (timerRef.current != null) {
@@ -144,9 +158,10 @@ export default function RedeemCodePage() {
           <Text className="u-muted">待核销金额</Text>
           <Text className="redeem-code-amount">¥ {formatMoney(amount)}</Text>
           {token ? (
-            <View className="redeem-code-token-wrap">
+            <View className="redeem-code-token-wrap" onClick={onTokenTap}>
               <Text className="redeem-code-token-label">核销码编号（供追查）</Text>
               <Text className="redeem-code-token">{token}</Text>
+              <Text className="redeem-code-token-hint">双击复制</Text>
             </View>
           ) : null}
         </View>

apps/mini-user/src/pages/redeem-success/index.tsx

@@ -20,6 +20,29 @@ function formatMoney(amount: number) {
   return amount.toLocaleString('zh-CN', { minimumFractionDigits: 2, maximumFractionDigits: 2 });
 }
 
+/** 中国时区展示：2026年8月3日 13点45分 */
+function formatChinaDateTime(input?: string | null) {
+  const d = input ? new Date(input) : new Date();
+  if (Number.isNaN(d.getTime())) return '—';
+  const parts = new Intl.DateTimeFormat('zh-CN', {
+    timeZone: 'Asia/Shanghai',
+    year: 'numeric',
+    month: 'numeric',
+    day: 'numeric',
+    hour: 'numeric',
+    minute: '2-digit',
+    hour12: false,
+  }).formatToParts(d);
+  const get = (type: Intl.DateTimeFormatPartTypes) =>
+    parts.find((p) => p.type === type)?.value ?? '';
+  const year = get('year');
+  const month = String(Number(get('month')));
+  const day = String(Number(get('day')));
+  const hour = String(Number(get('hour')));
+  const minute = get('minute').padStart(2, '0');
+  return `${year}年${month}月${day}日 ${hour}点${minute}分`;
+}
+
 function StarRating({
   label,
   value,
@@ -65,9 +88,7 @@ export default function RedeemSuccessPage() {
   const amount = Number(record?.amount ?? router.params.amount ?? 0);
   const storeName = record?.storeName || '门店';
   const redeemNo = record?.redeemNo || '—';
-  const redeemedAt = record?.createdAt
+  const redeemedAt = formatChinaDateTime(record?.createdAt);
-    ? new Date(record.createdAt).toLocaleString('zh-CN')
-    : new Date().toLocaleString('zh-CN');
 
   function clearCache() {
     try {

apps/mini-user/src/styles/redeem.css

@@ -304,9 +304,19 @@
   display: block;
   font-family: ui-monospace, monospace;
   font-size: 11px;
-  word-break: break-all;
   color: var(--color-on-surface);
   line-height: 1.5;
+  max-width: 100%;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.redeem-code-token-hint {
+  display: block;
+  margin-top: 4px;
+  font-size: 11px;
+  color: var(--color-subtle-gray);
 }
 
 .redeem-success-icon {