From 30ebc1c344b8de05689edc5906213afbd7766a58 Mon Sep 17 00:00:00 2001
From: richarjiang <richarjiang@tencent.com>
Date: Tue, 8 Sep 2026 22:31:39 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E6=94=AF=E6=8C=81=E9=82=80=E8=AF=B7?=
 =?UTF-8?q?=E5=A5=BD=E5=8F=8B=E5=8A=9F=E8=83=BD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/invite-marketing.md                      |  32 ++
 packages/app/src/components/CardShop.vue      |   5 +-
 .../app/src/components/FlashSaleSection.vue   |   5 +-
 packages/app/src/components/InviteCard.vue    |  57 ++
 packages/app/src/pages/card/detail.vue        |  69 ++-
 packages/app/src/pages/flash-sale/detail.vue  |  18 +-
 packages/app/src/pages/profile/index.vue      |  10 +-
 packages/app/src/pages/profile/invite.vue     | 508 +-----------------
 packages/app/src/pages/profile/membership.vue |   2 +-
 packages/app/src/stores/invite.ts             |  46 +-
 packages/app/src/stores/user.ts               |   4 +
 .../20260908000000_invite_codes/migration.sql |   4 +
 packages/server/prisma/schema.prisma          |   3 +
 .../__tests__/flash-sale-invite.spec.ts       |  25 +
 .../src/flash-sale/flash-sale.service.ts      |   5 +-
 .../invite/__tests__/invite.service.spec.ts   |  71 +++
 .../server/src/invite/invite.constants.ts     |   2 +-
 .../server/src/invite/invite.controller.ts    |  19 +-
 packages/server/src/invite/invite.service.ts  | 151 +++---
 .../payment/__tests__/payment.service.spec.ts |  27 +-
 .../server/src/payment/payment.service.ts     |  14 +-
 21 files changed, 445 insertions(+), 632 deletions(-)
 create mode 100644 docs/invite-marketing.md
 create mode 100644 packages/app/src/components/InviteCard.vue
 create mode 100644 packages/server/prisma/migrations/20260908000000_invite_codes/migration.sql
 create mode 100644 packages/server/src/flash-sale/__tests__/flash-sale-invite.spec.ts
 create mode 100644 packages/server/src/invite/__tests__/invite.service.spec.ts

diff --git a/docs/invite-marketing.md b/docs/invite-marketing.md
new file mode 100644
index 0000000..7f8ac0e
--- /dev/null
+++ b/docs/invite-marketing.md
@@ -0,0 +1,32 @@
+# 邀请好友领课时
+
+个人中心为所有登录用户展示 6 位邀请码；首次访问 `/invite/code` 时惰性生成，字符避开 0、1、I、O。数据库唯一索引保证唯一，条件更新和冲突重试保证并发安全，无需回填存量用户。
+
+分享入口使用微信 `button open-type="share"`，分享落地为 `/pages/card/detail?showAll=1&inviteCode=XXXXXX`。落地弹窗自动填码，未领取的列表价格标注「领取后 95 折」。用户确认后绑定一次，禁止自邀和更换邀请人；绑定后体验卡、次卡、期限卡及限时购卡均按当前售价享 95 折，按分四舍五入，后续购买自动享受。订单金额只由服务端计算。
+
+每位好友首次支付非体验卡后，邀请人获得独立的 1 次赠课会员卡，365 天有效；邀请人无需先持有会员卡。赠课卡隐藏于商品列表，可从「我的会员卡」预约。体验卡购买与上课均不发奖。每人只奖励一次，续购不重复奖励。
+
+订单记录下单时的邀请人和卡片类别。支付到账、购卡权益、邀请资格更新、赠课及奖励记录处于同一数据库事务。条件更新防止并发回调、同一好友多笔订单重复发奖。历史无归因快照的订单不补发奖励；历史已 QUALIFIED 的邀请保留原资格，不重复奖励。
+
+## 发布
+
+先备份数据库，并在服务端运行 `pnpm exec prisma migrate deploy`，应用 `20260908000000_invite_codes`。该迁移新增可空邀请码、唯一索引、订单归因字段及隐藏赠课卡类型，不更新用户历史数据。
+
+然后运行 `pnpm prisma:generate`，从仓库根目录运行 `pnpm build:shared`、`pnpm build:server`、`pnpm build:app`。先发布服务端，再发布小程序。无需新增环境变量。已于 2026-09-08 22:29（北京时间）执行生产迁移并发布后台；小程序尚未发布。
+
+## 真机验收
+
+用两个微信账号验证：个人中心复制和好友分享；分享卡片落地列表与自动填码；未登录确认领取；重启后保留服务端优惠；原价和 95 折金额一致；体验卡支付不赠课；次卡/期限卡首次支付赠课到账；后续购买不再赠课；赠课可预约。还应验证支付失败、取消和重复回调。微信分享与真实微信支付仍需在部署后进行真机验证。
+
+## 验证限制
+
+邀请、支付和限时购卡价格测试通过。已在 390 × 844 的 H5 预览中检查个人中心入口和自动填码落地弹窗；H5 预览不代替微信真机验收。全量测试中的旧 SchedulerService 测试缺少 FlashSaleService mock，8 项失败，与本次修改无关。`pnpm lint` 因仓库未安装 ESLint 无法运行。
+
+## 本次后台发布记录
+
+- 目标：`129.204.155.94`，目录 `/usr/local/web/mp-pilates-server`，PM2 服务 `mp-pilates-server`，端口 3008。
+- 使用服务器现有 Node 22.16.0 和 Prisma 5.22.0；现有部署脚本中的 Node 22.17.1 路径不适用于当前服务器，因此按步骤发布构建，未修改线上环境配置及证书。
+- 数据库迁移状态正常，新增 3 个字段及独立隐藏赠课卡核验通过。
+- 公网 `/api/health` 和 `/api/membership/card-types` 返回 200；商品列表不包含赠课卡；未登录访问 `/api/invite/code` 返回预期的 401。
+- 旧构建和 Prisma schema 已归档在服务器 `/usr/local/web/releases/mp-pilates-invite-20260908/previous-build.tgz`，新构建归档为同目录 `release.tgz`。
+- 本次只进行发布及只读核验，未制造测试用户、邀请关系或支付订单。微信真机分享与支付仍待小程序发布后联调。
diff --git a/packages/app/src/components/CardShop.vue b/packages/app/src/components/CardShop.vue
index ee6dccb..ef54524 100644
--- a/packages/app/src/components/CardShop.vue
+++ b/packages/app/src/components/CardShop.vue
@@ -58,7 +58,7 @@
               <text class="card-times-unit">课时</text>
             </view>
             <view class="price-row">
-              <text class="price-current">¥{{ formatPrice(card.price) }}</text>
+              <text class="price-current">¥{{ formatPrice(invite.price(card.price)) }}</text>
               <text
                 v-if="card.originalPrice && card.originalPrice > card.price"
                 class="price-original"
@@ -69,6 +69,7 @@
           </view>
         </view>
 
+        <text v-if="invite.eligible" class="renew-tag">95 折</text>
         <!-- Arrow -->
         <text class="card-arrow">›</text>
       </view>
@@ -82,6 +83,7 @@
 </template>
 
 <script setup lang="ts">
+import { useInviteStore } from '../stores/invite'
 import { computed, ref, onMounted } from 'vue'
 import type { CardType } from '@mp-pilates/shared'
 import { CardTypeCategory } from '@mp-pilates/shared'
@@ -89,6 +91,7 @@ import { get } from '../utils/request'
 import { formatPrice, getCardCoverClass } from '../utils/format'
 import { useUserStore } from '../stores/user'
 
+const invite = useInviteStore()
 const userStore = useUserStore()
 const cardTypes = ref<CardType[]>([])
 const loading = ref(false)
diff --git a/packages/app/src/components/FlashSaleSection.vue b/packages/app/src/components/FlashSaleSection.vue
index 9b30f3e..807954f 100644
--- a/packages/app/src/components/FlashSaleSection.vue
+++ b/packages/app/src/components/FlashSaleSection.vue
@@ -52,8 +52,9 @@
             <view class="price-area">
               <view class="flash-price-row">
                 <text class="flash-currency">¥</text>
-                <text class="flash-price">{{ formatPrice(sale.flashPrice) }}</text>
+                <text class="flash-price">{{ formatPrice(invite.price(sale.flashPrice)) }}</text>
               </view>
+              <text v-if="invite.eligible" class="original-price">好友 95 折</text>
               <text class="original-price">¥{{ formatPrice(sale.originalPrice) }}</text>
             </view>
 
@@ -78,6 +79,8 @@
 </template>
 
 <script setup lang="ts">
+import { useInviteStore } from "../stores/invite"
+const invite = useInviteStore()
 import { ref, computed, onMounted, onUnmounted } from 'vue'
 import { FlashSalePhase } from '@mp-pilates/shared'
 import type { FlashSaleListItem } from '@mp-pilates/shared'
diff --git a/packages/app/src/components/InviteCard.vue b/packages/app/src/components/InviteCard.vue
new file mode 100644
index 0000000..7b6511c
--- /dev/null
+++ b/packages/app/src/components/InviteCard.vue
@@ -0,0 +1,57 @@
+<template>
+  <view class="invite-entry">
+    <view class="invite-heading" @tap="open">
+      <view><text class="eyebrow">好友享 95 折 · 一起变好</text><text class="entry-title">邀请好友领课时 <text>↗</text></text></view>
+      <view class="gift"><text class="gift-number">1</text><text>节免费课</text></view>
+    </view>
+    <view class="code-line" @tap="copy"><text>{{ invite.code ? '我的邀请码' : '登录领取专属邀请码' }}</text><text class="code">{{ invite.code }}</text><text v-if="invite.code">复制</text></view>
+    <view v-if="visible" class="veil" @tap="visible = false" @touchmove.stop.prevent>
+      <view class="sheet" @tap.stop>
+        <button class="close" @tap="visible = false" aria-label="关闭">×</button>
+        <text class="eyebrow">A LITTLE GIFT, SHARED</text>
+        <text class="headline">好朋友，好好练。</text>
+        <text class="subtitle">把你的练习日常，分享给在意的人。</text>
+        <view class="benefits"><view><text class="benefit-num">1<text> 节</text></text><text>你得免费课</text></view><view><text class="benefit-num">95<text> 折</text></text><text>好友购卡优惠</text></view></view>
+        <view class="ticket" @tap="copy"><text>你的专属邀请码 · 点击复制</text><text class="ticket-code">{{ invite.code }}</text></view>
+        <text class="rules">好友确认邀请码，体验卡、次卡和期限卡均享 95 折。每位好友首次成功购买非体验卡，你得 1 节免费课；购买或完成体验课不触发赠课。</text>
+        <text class="rules">赠课自动存入「我的会员卡」，365 天内可预约。每位好友仅绑定一位邀请人。</text>
+        <button class="share" open-type="share" :disabled="!invite.code">分享给微信好友</button>
+        <text class="footnote">送朋友一份心意，也给自己一次练习</text>
+      </view>
+    </view>
+  </view>
+</template>
+<script setup lang="ts">
+import { ref } from 'vue'
+import { useInviteStore } from '../stores/invite'
+import { useUserStore } from '../stores/user'
+import { getErrorMessage } from '../utils/auth'
+const invite = useInviteStore()
+const user = useUserStore()
+const visible = ref(false)
+async function open() {
+  try {
+    if (!user.loggedIn) await user.login()
+    await invite.refresh()
+    visible.value = true
+  } catch (err) { uni.showToast({ title: getErrorMessage(err, '暂时无法获取邀请码，请重试'), icon: 'none' }) }
+}
+function copy() {
+  if (!invite.code) { open(); return }
+  uni.setClipboardData({ data: invite.code })
+}
+</script>
+<style scoped lang="scss">
+.invite-entry { margin: 24rpx 32rpx; padding: 28rpx; background: #eaf0e7; border: 1rpx solid #d9e3d4; border-radius: 26rpx; color: #435b4c; }
+.invite-heading { display: flex; justify-content: space-between; align-items: center; }
+.eyebrow { display: block; font-size: 19rpx; letter-spacing: 3rpx; color: #788976; }
+.entry-title { display: block; font-size: 29rpx; margin-top: 12rpx; font-weight: 500; }
+.gift { display: flex; flex-direction: column; align-items: center; font-size: 18rpx; }.gift-number { font-family: Georgia, serif; font-size: 56rpx; line-height: 1; }
+.code-line { display: flex; align-items: center; gap: 18rpx; border-top: 1rpx solid #d2dece; padding-top: 20rpx; margin-top: 22rpx; font-size: 21rpx; }.code { flex: 1; letter-spacing: 4rpx; font-family: monospace; font-size: 27rpx; }
+.veil { position: fixed; inset: 0; z-index: 400; background: rgba(32,43,35,.48); display: flex; align-items: center; padding: 30rpx; }
+.sheet { position: relative; width: 100%; max-height: 85vh; overflow-y: auto; box-sizing: border-box; padding: 48rpx 34rpx 32rpx; border-radius: 32rpx; background: #fcfaf5; }.close { position: absolute; right: 18rpx; top: 12rpx; margin: 0; background: transparent; color: #7b8477; font-size: 36rpx; }.close::after,.share::after { border: none; }
+.headline { display: block; margin-top: 20rpx; font-family: 'Songti SC',serif; font-size: 46rpx; }.subtitle { display: block; margin-top: 12rpx; font-size: 23rpx; color: #87907f; }
+.benefits { display: flex; margin: 30rpx 0; padding: 25rpx 0; background: #eaf0e5; border-radius: 22rpx; }.benefits>view { flex: 1; text-align: center; font-size: 24rpx; }.benefits>view+view { border-left: 1rpx solid #cbd8c5; }.benefit-num { display: block; font: 66rpx Georgia,serif; margin-bottom: 10rpx; }.benefit-num text { font-size: 26rpx; }
+.ticket { padding: 22rpx; text-align: center; border: 1rpx dashed #b7c5af; border-radius: 16rpx; font-size: 21rpx; color: #7a8772; }.ticket-code { display: block; margin-top: 12rpx; font: 42rpx monospace; letter-spacing: 10rpx; color: #435b4c; }
+.rules { display: block; margin-top: 18rpx; font-size: 21rpx; line-height: 1.8; color: #7d8076; }.share { margin-top: 26rpx; border-radius: 999rpx; background: #526e58; color: #fff; font-size: 27rpx; line-height: 86rpx; }.footnote { display: block; text-align: center; margin-top: 16rpx; font-size: 19rpx; color: #93978a; }
+</style>
diff --git a/packages/app/src/pages/card/detail.vue b/packages/app/src/pages/card/detail.vue
index 66629d4..c7f8597 100644
--- a/packages/app/src/pages/card/detail.vue
+++ b/packages/app/src/pages/card/detail.vue
@@ -5,6 +5,21 @@
     :style="{ paddingTop: navBarHeight }"
   >
     <CustomNavBar :title="pageTitle" show-back />
+    <view class="invite-banner" @tap="inviteVisible = true; inviteInput = invite.pendingCode">
+      <text>{{ invite.eligible ? '好友礼遇 · 已享 95 折' : '好友礼遇 · 领取 95 折购卡优惠' }}</text>
+      <text class="invite-banner-note">{{ invite.eligible ? '体验卡、次卡、期限卡均适用' : '填写邀请码，和朋友一起开始练习 ›' }}</text>
+    </view>
+    <view v-if="inviteVisible" class="purchase-sheet-layer" @touchmove.stop.prevent>
+      <view class="purchase-sheet">
+        <text class="sheet-kicker">A GIFT FROM YOUR FRIEND</text>
+        <text class="sheet-title">朋友送你一份 95 折礼遇</text>
+        <text class="invite-banner-note">确认邀请码后，购卡自动减免 5%。体验卡也可享受。</text>
+        <input v-model="inviteInput" class="invite-input" maxlength="6" placeholder="填写 6 位好友邀请码" :disabled="inviteBusy" />
+        <text v-if="inviteError" class="invite-error">{{ inviteError }}</text>
+        <text class="sheet-note-text">每人仅绑定一位好友。首次成功购买非体验卡，好友获得 1 节免费课；体验卡不触发赠课。</text>
+        <view class="sheet-actions"><button class="sheet-cancel" :disabled="inviteBusy" @tap="inviteVisible = false">稍后再说</button><button class="sheet-confirm" :disabled="inviteBusy || inviteInput.length !== 6" @tap="confirmInvite">{{ inviteBusy ? '领取中…' : '确认领取' }}</button></view>
+      </view>
+    </view>
 
     <view v-if="loading" class="loading-wrap">
       <view class="skeleton-pass" />
@@ -64,10 +79,11 @@
               <text class="card-benefit">{{ cardAccessLabel(c) }}</text>
               <view class="card-price-row">
                 <view class="price-stack">
-                  <text class="card-price">¥{{ formatPrice(c.price) }}</text>
-                  <text v-if="getSavingsLabel(c)" class="save-tag">{{ getSavingsLabel(c) }}</text>
+                  <text class="card-price">¥{{ formatPrice(invite.pendingCode && !invite.eligible ? Math.round(c.price * 95 / 100) : invite.price(c.price)) }}</text>
+                  <text v-if="invite.pendingCode && !invite.eligible" class="save-tag">领取后 95 折</text>
+                  <text v-if="(!invite.pendingCode || invite.eligible) && getSavingsLabel(c)" class="save-tag">{{ getSavingsLabel(c) }}</text>
                 </view>
-                <text class="card-unit">{{ getUnitPriceLabel(c) }}</text>
+                <text v-if="!invite.pendingCode || invite.eligible" class="card-unit">{{ getUnitPriceLabel(c) }}</text>
               </view>
             </view>
 
@@ -129,7 +145,7 @@
 
         <view class="hero-price-row">
           <text class="hero-currency">¥</text>
-          <text class="hero-price">{{ formatPrice(cardData.price) }}</text>
+          <text class="hero-price">{{ formatPrice(invite.price(cardData.price)) }}</text>
           <text
             v-if="cardData.originalPrice && cardData.originalPrice > cardData.price"
             class="hero-original"
@@ -239,7 +255,7 @@
       <view class="bottom-bar" :class="{ 'bottom-bar--renew': isRenewal }">
         <view class="price-summary">
           <text class="price-summary-label">{{ isRenewal ? '续卡金额' : '实付金额' }}</text>
-          <text class="price-summary-value">¥{{ formatPrice(cardData.price) }}</text>
+          <text class="price-summary-value">¥{{ formatPrice(invite.price(cardData.price)) }}</text>
           <text class="price-summary-hint">{{ bottomPriceHint }}</text>
         </view>
         <button
@@ -270,7 +286,7 @@
               <text class="sheet-card-type">{{ typeLabel }}</text>
               <text class="sheet-card-name">{{ cardData.name }}</text>
             </view>
-            <text class="sheet-card-price">¥{{ formatPrice(cardData.price) }}</text>
+            <text class="sheet-card-price">¥{{ formatPrice(invite.price(cardData.price)) }}</text>
           </view>
           <view class="sheet-card-meta">
             <text>{{ cardAccessLabel(cardData) }}</text>
@@ -319,8 +335,9 @@
 </template>
 
 <script setup lang="ts">
+import { useInviteStore } from '../../stores/invite'
 import { computed, onMounted, onUnmounted, ref } from 'vue'
-import { onShow } from '@dcloudio/uni-app'
+import { onLoad, onShow } from '@dcloudio/uni-app'
 import type { CardType, CreateOrderResponse } from '@mp-pilates/shared'
 import {
   CardTypeCategory,
@@ -348,6 +365,30 @@ interface MyOrderStatusResponse {
 type PaymentConfirmationResult = 'paid' | 'pending' | 'unavailable' | 'unauthorized'
 type PaymentStatusIssue = 'none' | 'order-check' | 'membership-sync' | 'reauthentication'
 
+const invite = useInviteStore()
+const inviteVisible = ref(false)
+const inviteInput = ref('')
+const inviteBusy = ref(false)
+const inviteError = ref('')
+onLoad((options) => {
+  if (options?.inviteCode) {
+    invite.pendingCode = options.inviteCode.toUpperCase()
+    inviteInput.value = invite.pendingCode
+    inviteVisible.value = true
+  }
+})
+async function confirmInvite() {
+  if (inviteBusy.value) return
+  inviteBusy.value = true
+  inviteError.value = ''
+  try {
+    if (!userStore.loggedIn) await userStore.login()
+    await invite.confirm(inviteInput.value.trim().toUpperCase())
+    inviteVisible.value = false
+    uni.showToast({ title: '95 折优惠已领取', icon: 'success' })
+  } catch (err) { inviteError.value = getErrorMessage(err, '领取失败，请重试') }
+  finally { inviteBusy.value = false }
+}
 const userStore = useUserStore()
 const navBarHeight = ref('64px')
 const cardId = ref('')
@@ -578,7 +619,7 @@ function cardAccessLabel(cardType: CardType): string {
 function getUnitPrice(cardType: CardType): string {
   const divisor = cardType.totalTimes === null ? cardType.durationDays : cardType.totalTimes
   if (!divisor) return '-'
-  return '¥' + String(Math.round(cardType.price / divisor / 100))
+  return '¥' + String(Math.round(invite.price(cardType.price) / divisor / 100))
 }
 
 function getUnitPriceLabel(cardType: CardType): string {
@@ -586,6 +627,7 @@ function getUnitPriceLabel(cardType: CardType): string {
 }
 
 function getSavingsLabel(cardType: CardType): string {
+  if (invite.eligible) return '好友价 · 95 折'
   if (!cardType.originalPrice || cardType.originalPrice <= cardType.price) return ''
   return '省 ¥' + formatPrice(cardType.originalPrice - cardType.price)
 }
@@ -698,6 +740,7 @@ async function preparePurchaseConfirmation() {
   if (!card.value || isPurchaseBusy.value) return
   purchasePreparing.value = true
   try {
+    await invite.refresh()
     const refreshed = await refreshMembershipContext()
     if (!userStore.loggedIn) {
       showLoginPrompt()
@@ -708,6 +751,8 @@ async function preparePurchaseConfirmation() {
       return
     }
     purchaseConfirmVisible.value = true
+  } catch (err) {
+    uni.showToast({ title: getErrorMessage(err, '暂时无法核对优惠，请重试'), icon: 'none' })
   } finally {
     purchasePreparing.value = false
   }
@@ -824,10 +869,8 @@ async function doPurchase() {
   uni.showLoading({ title: '创建订单...' })
 
   try {
-    const inviterId = uni.getStorageSync('invite_inviter_id') as string
     const result = await post<CreateOrderResponse>('/payment/create-order', {
       cardTypeId: card.value.id,
-      inviterId: isTrialCard.value && inviterId ? inviterId : undefined,
     })
 
     uni.hideLoading()
@@ -872,6 +915,7 @@ onMounted(() => {
 })
 
 onShow(() => {
+  if (userStore.loggedIn) void invite.refresh().catch(() => {})
   if (!paymentConfirming.value && !paymentPending.value) {
     void refreshMembershipContext()
   }
@@ -883,6 +927,11 @@ onUnmounted(() => {
 </script>
 
 <style lang="scss" scoped>
+.invite-banner { margin: 24rpx 32rpx 0; padding: 24rpx; border-radius: 20rpx; background: #eaf0e5; color: #526e58; font-size: 27rpx; }
+.invite-banner-note { display: block; margin-top: 10rpx; color: #7b8974; font-size: 22rpx; line-height: 1.6; }
+.invite-input { margin: 26rpx 0; padding: 24rpx; border: 1rpx dashed #a9b99e; border-radius: 16rpx; font: 34rpx monospace; letter-spacing: 6rpx; height: 55rpx; text-align: center; }
+.invite-error { display: block; color: #ad604c; font-size: 23rpx; margin-bottom: 16rpx; }
+
 .card-detail-page {
   min-height: 100vh;
   box-sizing: border-box;
diff --git a/packages/app/src/pages/flash-sale/detail.vue b/packages/app/src/pages/flash-sale/detail.vue
index 9709e98..67ea2e2 100644
--- a/packages/app/src/pages/flash-sale/detail.vue
+++ b/packages/app/src/pages/flash-sale/detail.vue
@@ -40,7 +40,8 @@
         <!-- Price row -->
         <view class="hero-price-row">
           <text class="hero-currency">¥</text>
-          <text class="hero-price">{{ formatPrice(detail.flashPrice) }}</text>
+          <text v-if="invite.eligible" class="hero-discount-text">好友 95 折</text>
+          <text class="hero-price">{{ formatPrice(invite.price(detail.flashPrice)) }}</text>
           <view class="hero-original-wrap">
             <text class="hero-original-label">原价</text>
             <text class="hero-original">¥{{ formatPrice(detail.originalPrice) }}</text>
@@ -49,7 +50,7 @@
 
         <!-- Discount badge -->
         <view class="hero-discount-badge">
-          <text class="hero-discount-text">立省 ¥{{ formatPrice(detail.originalPrice - detail.flashPrice) }}</text>
+          <text class="hero-discount-text">立省 ¥{{ formatPrice(detail.originalPrice - invite.price(detail.flashPrice)) }}</text>
         </view>
 
         <!-- Countdown -->
@@ -186,7 +187,7 @@
           <text class="bar-price-label">秒杀价</text>
           <view class="bar-price-row">
             <text class="bar-currency">¥</text>
-            <text class="bar-price">{{ formatPrice(detail.flashPrice) }}</text>
+            <text class="bar-price">{{ formatPrice(invite.price(detail.flashPrice)) }}</text>
           </view>
         </view>
         <view
@@ -202,6 +203,8 @@
 </template>
 
 <script setup lang="ts">
+import { useInviteStore } from "../../stores/invite"
+const invite = useInviteStore()
 import { ref, computed, onMounted, onUnmounted } from 'vue'
 import {
   FlashSalePhase,
@@ -295,7 +298,7 @@ const actionBtnText = computed(() => {
   if (!userStore.loggedIn) return '登录后参与'
   if (!userStore.user?.phone) return '授权手机号后参与'
   if (buying.value) return '抢购中...'
-  return `¥${formatPrice(d.flashPrice)} 立即抢购`
+  return `¥${formatPrice(invite.price(d.flashPrice))} 立即抢购`
 })
 
 const actionBtnClass = computed(() => {
@@ -360,10 +363,15 @@ async function handleAction() {
     return
   }
 
+  try { await invite.refresh() } catch (err) {
+    uni.showToast({ title: getErrorMessage(err, '暂时无法核对优惠，请重试'), icon: 'none' })
+    return
+  }
+
   // Confirm purchase
   uni.showModal({
     title: '确认抢购',
-    content: `确认以 ¥${formatPrice(detail.value.flashPrice)} 抢购「${detail.value.title}」？`,
+    content: `确认以 ¥${formatPrice(invite.price(detail.value.flashPrice))} 抢购「${detail.value.title}」？`,
     confirmText: '确认抢购',
     success: async (res) => {
       if (res.confirm) {
diff --git a/packages/app/src/pages/profile/index.vue b/packages/app/src/pages/profile/index.vue
index 82052b5..3b60e3d 100644
--- a/packages/app/src/pages/profile/index.vue
+++ b/packages/app/src/pages/profile/index.vue
@@ -8,6 +8,8 @@
     <UserCard :logged-in="loggedIn" :has-profile="hasProfile" :user="user" :stats="stats" :memberships="memberships"
       :loading="loginLoading" @login="handleLogin" @edit="goToInfo" />
 
+    <InviteCard />
+
     <!-- Menu section: always visible -->
     <ProfileMenu
       :is-admin="isAdmin"
@@ -29,6 +31,8 @@
 </template>
 
 <script setup lang="ts">
+import InviteCard from '../../components/InviteCard.vue'
+import { useInviteStore } from '../../stores/invite'
 import { ref, computed, onMounted } from 'vue'
 import { onShow, onShareAppMessage, onShareTimeline } from '@dcloudio/uni-app'
 import { storeToRefs } from 'pinia'
@@ -40,6 +44,7 @@ import PracticeActivityCard from '../../components/PracticeActivityCard.vue'
 import UserCard from '../../components/UserCard.vue'
 import ProfileMenu from '../../components/ProfileMenu.vue'
 
+const invite = useInviteStore()
 const userStore = useUserStore()
 const bookingStore = useBookingStore()
 const { loggedIn, hasProfile, user, stats, memberships, isAdmin } = storeToRefs(userStore)
@@ -61,8 +66,8 @@ const upcomingBookingCount = computed(
 // ─── 微信分享 ───────────────────────────────────────────────
 onShareAppMessage(() => {
   return {
-    title: '我的普拉提会所，记录每一次进步',
-    path: '/pages/profile/index',
+    title: invite.code ? '送你 95 折购卡礼，一起练普拉提' : '一起练普拉提',
+    path: invite.code ? `/pages/card/detail?showAll=1&inviteCode=${invite.code}` : '/pages/home/index',
     imageUrl: '',
   }
 })
@@ -82,6 +87,7 @@ onShow(async () => {
   activityRefreshKey.value += 1
   if (loggedIn.value) {
     await Promise.all([
+      invite.refresh().catch(() => {}),
       userStore.fetchProfile(),
       userStore.fetchStats(),
       userStore.fetchMemberships(),
diff --git a/packages/app/src/pages/profile/invite.vue b/packages/app/src/pages/profile/invite.vue
index 4d37f68..82b4cbf 100644
--- a/packages/app/src/pages/profile/invite.vue
+++ b/packages/app/src/pages/profile/invite.vue
@@ -1,504 +1,14 @@
-<template>
-  <view class="invite-page" :style="{ paddingTop: navBarHeight }">
-    <CustomNavBar title="邀请好友" show-back />
-
-    <scroll-view class="invite-scroll" scroll-y>
-      <view class="hero-card">
-        <view class="hero-glow hero-glow--one" />
-        <view class="hero-glow hero-glow--two" />
-        <text class="hero-badge">会员专享裂变活动</text>
-        <text class="hero-title">邀 3 位好友体验并核销</text>
-        <text class="hero-subtitle">好友购买体验课并完成上课后，会员卡立即奖励 1 节正课次数。</text>
-
-        <view class="hero-stats">
-          <view class="hero-stat">
-            <text class="hero-stat-value">{{ summary?.qualifiedInviteCount ?? 0 }}</text>
-            <text class="hero-stat-label">已完成邀请</text>
-          </view>
-          <view class="hero-stat hero-stat--accent">
-            <text class="hero-stat-value">{{ summary?.rewardedTimes ?? 0 }}</text>
-            <text class="hero-stat-label">已得奖励</text>
-          </view>
-          <view class="hero-stat">
-            <text class="hero-stat-value">{{ summary?.nextRewardRemainingCount ?? 3 }}</text>
-            <text class="hero-stat-label">距下次奖励</text>
-          </view>
-        </view>
-
-        <view class="progress-shell">
-          <view class="progress-track">
-            <view class="progress-fill" :style="{ width: progressWidth }" />
-          </view>
-          <text class="progress-caption">本轮进度 {{ summary?.currentCycleQualifiedCount ?? 0 }}/{{ summary?.rewardRuleInvitesRequired ?? 3 }}</text>
-        </view>
-
-        <button class="share-btn" open-type="share">
-          立即邀请好友
-        </button>
-        <text class="share-hint">分享后，新用户登录并购买体验课即可自动绑定邀请关系。</text>
-      </view>
-
-      <view class="steps-card">
-        <text class="section-title">活动规则</text>
-        <view v-for="item in ruleSteps" :key="item.title" class="step-item">
-          <view class="step-index">{{ item.index }}</view>
-          <view class="step-body">
-            <text class="step-title">{{ item.title }}</text>
-            <text class="step-desc">{{ item.desc }}</text>
-          </view>
-        </view>
-      </view>
-
-      <view class="referrals-card">
-        <view class="section-head">
-          <text class="section-title">邀请进度</text>
-          <text class="section-meta">待完成 {{ summary?.pendingInviteCount ?? 0 }} 人</text>
-        </view>
-
-        <view v-if="summary?.referrals?.length" class="referral-list">
-          <view v-for="item in summary.referrals" :key="item.id" class="referral-item">
-            <image v-if="item.inviteeAvatarUrl" class="referral-avatar" :src="item.inviteeAvatarUrl" mode="aspectFill" />
-            <view v-else class="referral-avatar referral-avatar--placeholder">友</view>
-            <view class="referral-main">
-              <text class="referral-name">{{ item.inviteeNickname || '新好友' }}</text>
-              <text class="referral-time">邀请于 {{ formatDateTime(item.invitedAt) }}</text>
-            </view>
-            <text class="referral-status" :class="statusClass(item.status)">{{ statusLabel(item.status) }}</text>
-          </view>
-        </view>
-        <view v-else class="empty-block">
-          <text class="empty-title">还没有邀请记录</text>
-          <text class="empty-desc">先分享给 3 位好友，完成一次体验闭环就会在这里点亮进度。</text>
-        </view>
-      </view>
-
-      <view class="reward-card">
-        <view class="section-head">
-          <text class="section-title">奖励记录</text>
-          <text class="section-meta">累计 {{ summary?.rewardedTimes ?? 0 }} 节</text>
-        </view>
-        <view v-if="summary?.rewardGrants?.length" class="reward-list">
-          <view v-for="item in summary.rewardGrants" :key="item.id" class="reward-item">
-            <text class="reward-item-title">完成 {{ item.qualifiedReferralCount }} 位好友核销</text>
-            <text class="reward-item-time">{{ formatDateTime(item.grantedAt) }}</text>
-            <text class="reward-item-tag">+{{ item.rewardTimes }} 节</text>
-          </view>
-        </view>
-        <view v-else class="empty-block empty-block--warm">
-          <text class="empty-title">还未获得奖励</text>
-          <text class="empty-desc">每 3 位好友完成体验核销，系统自动增加 1 节真实会员课次。</text>
-        </view>
-      </view>
-
-      <view class="bottom-space" />
-    </scroll-view>
-  </view>
-</template>
-
+<template><view :style="{ paddingTop: navBarHeight }"><CustomNavBar title="邀请好友" show-back /><InviteCard /></view></template>
 <script setup lang="ts">
-import { computed, ref } from 'vue'
-import { onLoad, onShow, onShareAppMessage, onShareTimeline } from '@dcloudio/uni-app'
-import { InviteReferralStatus } from '@mp-pilates/shared'
+import { onShareAppMessage, onShow } from '@dcloudio/uni-app'
+import CustomNavBar from '../../components/CustomNavBar.vue'
+import InviteCard from '../../components/InviteCard.vue'
 import { useInviteStore } from '../../stores/invite'
 import { useUserStore } from '../../stores/user'
 import { getSystemLayout } from '../../utils/system'
-import { formatDateTime } from '../../utils/format'
-import CustomNavBar from '../../components/CustomNavBar.vue'
-
-const inviteStore = useInviteStore()
-const userStore = useUserStore()
-
-const navBarHeight = ref('64px')
-
-const summary = computed(() => inviteStore.activity)
-const progressWidth = computed(() => {
-  const current = summary.value?.currentCycleQualifiedCount ?? 0
-  const total = summary.value?.rewardRuleInvitesRequired ?? 3
-  return `${Math.min(100, (current / total) * 100)}%`
-})
-
-const ruleSteps = [
-  { index: '01', title: '分享活动页', desc: '会员用户把活动页转发给微信好友或朋友圈。' },
-  { index: '02', title: '好友购买体验课', desc: '新好友通过你的分享进入，并成功购买体验课。' },
-  { index: '03', title: '体验课完成核销', desc: '好友到店体验并被老师核销后，这次邀请记为有效。' },
-  { index: '04', title: '满 3 人自动加课', desc: '每累计 3 位有效邀请，系统自动给你的会员卡增加 1 节。' },
-]
-
-onLoad((query) => {
-  navBarHeight.value = `${getSystemLayout().navBarHeight}px`
-  const inviterId = typeof query?.inviterId === 'string' ? query.inviterId : ''
-  if (inviterId) {
-    uni.setStorageSync('invite_inviter_id', inviterId)
-  }
-})
-
-onShow(async () => {
-  if (!userStore.loggedIn) {
-    return
-  }
-  await Promise.all([
-    userStore.fetchProfile(),
-    inviteStore.fetchActivity(),
-  ])
-})
-
-onShareAppMessage(() => ({
-  title: '邀 3 位好友体验核销，立得 1 节会员正课',
-  path: summary.value?.sharePath || `/pages/profile/invite?inviterId=${userStore.user?.id || ''}`,
-  imageUrl: '',
-}))
-
-onShareTimeline(() => ({
-  title: '邀 3 位好友体验核销，立得 1 节会员正课',
-  query: `inviterId=${userStore.user?.id || ''}`,
-}))
-
-function statusLabel(status: InviteReferralStatus): string {
-  const map: Record<InviteReferralStatus, string> = {
-    [InviteReferralStatus.REGISTERED]: '已注册',
-    [InviteReferralStatus.TRIAL_PURCHASED]: '已购体验课',
-    [InviteReferralStatus.QUALIFIED]: '已完成核销',
-  }
-  return map[status]
-}
-
-function statusClass(status: InviteReferralStatus): string {
-  if (status === InviteReferralStatus.QUALIFIED) return 'referral-status--done'
-  if (status === InviteReferralStatus.TRIAL_PURCHASED) return 'referral-status--paid'
-  return 'referral-status--registered'
-}
+const invite = useInviteStore()
+const user = useUserStore()
+const navBarHeight = `${getSystemLayout().navBarHeight}px`
+onShow(() => { if (user.loggedIn) invite.refresh().catch(() => {}) })
+onShareAppMessage(() => ({ title: '送你 95 折购卡礼，一起练普拉提', path: invite.code ? `/pages/card/detail?showAll=1&inviteCode=${invite.code}` : '/pages/home/index' }))
 </script>
-
-<style lang="scss" scoped>
-.invite-page {
-  min-height: 100vh;
-  background:
-    radial-gradient(circle at top left, rgba(255, 142, 83, 0.28), transparent 34%),
-    radial-gradient(circle at top right, rgba(255, 214, 102, 0.34), transparent 26%),
-    linear-gradient(180deg, #fff5db 0%, #ffe7ea 30%, #fef7ff 100%);
-}
-
-.invite-scroll {
-  height: 100vh;
-  padding: 24rpx;
-  box-sizing: border-box;
-}
-
-.hero-card,
-.steps-card,
-.referrals-card,
-.reward-card {
-  position: relative;
-  overflow: hidden;
-  border-radius: 36rpx;
-  padding: 32rpx;
-  margin-bottom: 24rpx;
-  box-shadow: 0 18rpx 50rpx rgba(157, 70, 42, 0.08);
-}
-
-.hero-card {
-  background: linear-gradient(135deg, #ff7a45 0%, #ff4d6d 48%, #ffb347 100%);
-  color: #fff;
-}
-
-.hero-glow {
-  position: absolute;
-  border-radius: 50%;
-  opacity: 0.28;
-  background: rgba(255, 255, 255, 0.5);
-}
-
-.hero-glow--one {
-  width: 260rpx;
-  height: 260rpx;
-  top: -90rpx;
-  right: -40rpx;
-}
-
-.hero-glow--two {
-  width: 180rpx;
-  height: 180rpx;
-  bottom: -50rpx;
-  left: -40rpx;
-}
-
-.hero-badge {
-  display: inline-flex;
-  align-self: flex-start;
-  padding: 10rpx 18rpx;
-  background: rgba(255, 255, 255, 0.18);
-  border-radius: 999rpx;
-  font-size: 22rpx;
-  margin-bottom: 18rpx;
-}
-
-.hero-title {
-  display: block;
-  font-size: 52rpx;
-  font-weight: 700;
-  line-height: 1.18;
-}
-
-.hero-subtitle {
-  display: block;
-  margin-top: 18rpx;
-  font-size: 26rpx;
-  line-height: 1.7;
-  color: rgba(255, 255, 255, 0.92);
-}
-
-.hero-stats {
-  display: grid;
-  grid-template-columns: repeat(3, 1fr);
-  gap: 18rpx;
-  margin-top: 28rpx;
-}
-
-.hero-stat {
-  padding: 24rpx 18rpx;
-  border-radius: 26rpx;
-  background: rgba(255, 255, 255, 0.14);
-  backdrop-filter: blur(10rpx);
-}
-
-.hero-stat--accent {
-  background: rgba(75, 16, 16, 0.22);
-}
-
-.hero-stat-value {
-  display: block;
-  font-size: 46rpx;
-  font-weight: 700;
-}
-
-.hero-stat-label {
-  display: block;
-  margin-top: 8rpx;
-  font-size: 22rpx;
-  color: rgba(255, 255, 255, 0.86);
-}
-
-.progress-shell {
-  margin-top: 28rpx;
-}
-
-.progress-track {
-  height: 20rpx;
-  border-radius: 999rpx;
-  overflow: hidden;
-  background: rgba(255, 255, 255, 0.25);
-}
-
-.progress-fill {
-  height: 100%;
-  border-radius: inherit;
-  background: linear-gradient(90deg, #fff7ad 0%, #ffffff 100%);
-}
-
-.progress-caption {
-  display: block;
-  margin-top: 12rpx;
-  font-size: 22rpx;
-  color: rgba(255, 255, 255, 0.88);
-}
-
-.share-btn {
-  margin-top: 28rpx;
-  height: 96rpx;
-  line-height: 96rpx;
-  border-radius: 999rpx;
-  font-size: 30rpx;
-  font-weight: 700;
-  color: #ff5a3c;
-  background: linear-gradient(90deg, #fff7e4 0%, #ffffff 100%);
-  border: none;
-}
-
-.share-btn::after {
-  border: none;
-}
-
-.share-hint {
-  display: block;
-  margin-top: 14rpx;
-  font-size: 22rpx;
-  color: rgba(255, 255, 255, 0.82);
-}
-
-.steps-card {
-  background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(255, 247, 234, 0.92));
-}
-
-.section-title {
-  display: block;
-  font-size: 32rpx;
-  font-weight: 700;
-  color: #30201a;
-}
-
-.section-head {
-  display: flex;
-  align-items: center;
-  justify-content: space-between;
-  margin-bottom: 22rpx;
-}
-
-.section-meta {
-  font-size: 22rpx;
-  color: #9b6b55;
-}
-
-.step-item {
-  display: flex;
-  gap: 18rpx;
-  align-items: flex-start;
-  padding: 22rpx 0;
-  border-bottom: 1rpx solid rgba(214, 171, 134, 0.2);
-}
-
-.step-item:last-child {
-  border-bottom: none;
-}
-
-.step-index {
-  width: 64rpx;
-  height: 64rpx;
-  border-radius: 20rpx;
-  text-align: center;
-  line-height: 64rpx;
-  font-size: 24rpx;
-  font-weight: 700;
-  color: #fff;
-  background: linear-gradient(135deg, #ff8f5a 0%, #ff4d6d 100%);
-}
-
-.step-body {
-  flex: 1;
-}
-
-.step-title {
-  display: block;
-  font-size: 28rpx;
-  font-weight: 600;
-  color: #36231d;
-}
-
-.step-desc {
-  display: block;
-  margin-top: 8rpx;
-  font-size: 24rpx;
-  line-height: 1.7;
-  color: #7b5d52;
-}
-
-.referrals-card {
-  background: linear-gradient(180deg, #ffffff 0%, #fff7fb 100%);
-}
-
-.reward-card {
-  background: linear-gradient(180deg, #fffdf5 0%, #fff2dc 100%);
-}
-
-.referral-item,
-.reward-item {
-  display: flex;
-  align-items: center;
-  padding: 22rpx 0;
-  border-bottom: 1rpx solid rgba(221, 196, 177, 0.35);
-}
-
-.referral-item:last-child,
-.reward-item:last-child {
-  border-bottom: none;
-}
-
-.referral-avatar {
-  width: 78rpx;
-  height: 78rpx;
-  border-radius: 50%;
-  margin-right: 18rpx;
-  background: #ffd9c8;
-}
-
-.referral-avatar--placeholder {
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  font-size: 28rpx;
-  font-weight: 700;
-  color: #ff6f3c;
-}
-
-.referral-main {
-  flex: 1;
-}
-
-.referral-name,
-.reward-item-title {
-  display: block;
-  font-size: 28rpx;
-  font-weight: 600;
-  color: #31211a;
-}
-
-.referral-time,
-.reward-item-time {
-  display: block;
-  margin-top: 8rpx;
-  font-size: 22rpx;
-  color: #8b6d62;
-}
-
-.referral-status,
-.reward-item-tag {
-  padding: 12rpx 18rpx;
-  border-radius: 999rpx;
-  font-size: 22rpx;
-  font-weight: 600;
-}
-
-.referral-status--registered {
-  color: #9c5e2f;
-  background: #fff0de;
-}
-
-.referral-status--paid {
-  color: #c44f1f;
-  background: #ffe0d1;
-}
-
-.referral-status--done,
-.reward-item-tag {
-  color: #0f7a53;
-  background: #dff7ea;
-}
-
-.empty-block {
-  padding: 36rpx 0 10rpx;
-  text-align: center;
-}
-
-.empty-block--warm {
-  padding-bottom: 0;
-}
-
-.empty-title {
-  display: block;
-  font-size: 28rpx;
-  font-weight: 600;
-  color: #5f4337;
-}
-
-.empty-desc {
-  display: block;
-  margin-top: 12rpx;
-  font-size: 24rpx;
-  line-height: 1.8;
-  color: #9c7d70;
-}
-
-.bottom-space {
-  height: 48rpx;
-}
-</style>
-
diff --git a/packages/app/src/pages/profile/membership.vue b/packages/app/src/pages/profile/membership.vue
index 6edce38..67851df 100644
--- a/packages/app/src/pages/profile/membership.vue
+++ b/packages/app/src/pages/profile/membership.vue
@@ -170,7 +170,7 @@ function goStore() {
 }
 
 function canRenewMembership(m: MembershipWithCardType): boolean {
-  return m.cardType.type !== CardTypeCategory.TRIAL
+  return m.cardType.isActive && m.cardType.type !== CardTypeCategory.TRIAL
 }
 
 function goRenew(m: MembershipWithCardType) {
diff --git a/packages/app/src/stores/invite.ts b/packages/app/src/stores/invite.ts
index 3ddd61d..e8d1912 100644
--- a/packages/app/src/stores/invite.ts
+++ b/packages/app/src/stores/invite.ts
@@ -1,26 +1,40 @@
 import { defineStore } from 'pinia'
 import { ref } from 'vue'
-import type { InviteActivitySummary } from '@mp-pilates/shared'
-import { get } from '../utils/request'
+import { get, post } from '../utils/request'
 
 export const useInviteStore = defineStore('invite', () => {
-  const activity = ref<InviteActivitySummary | null>(null)
-  const loading = ref(false)
-
-  async function fetchActivity() {
-    loading.value = true
+  const code = ref('')
+  const eligible = ref(false)
+  const pendingCode = ref('')
+  let revision = 0
+  let confirming = false
+  async function refresh() {
+    if (confirming) return
+    const requestRevision = ++revision
+    const result = await get<{ inviteCode: string; discountEligible: boolean }>('/invite/code')
+    if (requestRevision !== revision) return
+    code.value = result.inviteCode
+    eligible.value = result.discountEligible
+  }
+  async function confirm(value: string) {
+    const requestRevision = ++revision
+    confirming = true
     try {
-      activity.value = await get<InviteActivitySummary>('/invite/activity')
-      return activity.value
+      const result = await post<{ inviteCode: string; discountEligible: boolean }>('/invite/confirm', { code: value })
+      if (requestRevision !== revision) throw new Error('登录状态已变化，请重试')
+      code.value = result.inviteCode
+      eligible.value = result.discountEligible
+      pendingCode.value = ''
     } finally {
-      loading.value = false
+      confirming = false
     }
   }
-
-  return {
-    activity,
-    loading,
-    fetchActivity,
+  function reset() {
+    revision++
+    code.value = ''
+    eligible.value = false
+    pendingCode.value = ''
   }
+  function price(value: number) { return eligible.value ? Math.round(value * 95 / 100) : value }
+  return { code, eligible, pendingCode, refresh, confirm, reset, price }
 })
-
diff --git a/packages/app/src/stores/user.ts b/packages/app/src/stores/user.ts
index c23521a..cff2ba2 100644
--- a/packages/app/src/stores/user.ts
+++ b/packages/app/src/stores/user.ts
@@ -1,3 +1,4 @@
+import { useInviteStore } from './invite'
 import { defineStore } from 'pinia'
 import { ref, computed } from 'vue'
 import type {
@@ -46,6 +47,7 @@ export const useUserStore = defineStore('user', () => {
       const result = await wxLogin()
       token.value = result.token
       user.value = result.user
+      await useInviteStore().refresh().catch(() => {})
       syncSubscriptionTemplates(result.user)
       return { user: result.user, isNewUser: result.isNewUser }
     } catch (err) {
@@ -72,6 +74,7 @@ export const useUserStore = defineStore('user', () => {
     if (!isLoggedIn()) return
     try {
       user.value = await get<UserProfileResponse>('/user/profile')
+      await useInviteStore().refresh().catch(() => {})
       syncSubscriptionTemplates(user.value)
       return user.value
     } catch (err) {
@@ -120,6 +123,7 @@ export const useUserStore = defineStore('user', () => {
 
   function clearSession() {
     token.value = ''
+    useInviteStore().reset()
     user.value = null
     stats.value = null
     memberships.value = []
diff --git a/packages/server/prisma/migrations/20260908000000_invite_codes/migration.sql b/packages/server/prisma/migrations/20260908000000_invite_codes/migration.sql
new file mode 100644
index 0000000..3422d9c
--- /dev/null
+++ b/packages/server/prisma/migrations/20260908000000_invite_codes/migration.sql
@@ -0,0 +1,4 @@
+ALTER TABLE `users` ADD COLUMN `invite_code` VARCHAR(6) NULL;
+CREATE UNIQUE INDEX `users_invite_code_key` ON `users` (`invite_code`);
+ALTER TABLE `orders` ADD COLUMN `invite_inviter_id` VARCHAR(191) NULL, ADD COLUMN `purchased_category` VARCHAR(191) NULL;
+INSERT INTO `card_types` (`id`, `name`, `type`, `total_times`, `duration_days`, `price`, `is_active`, `sort_order`, `updated_at`) VALUES ('invite-reward-card', '邀请好友赠课', 'TIMES', 1, 365, 0, false, 9999, NOW());
diff --git a/packages/server/prisma/schema.prisma b/packages/server/prisma/schema.prisma
index d927e93..221764d 100644
--- a/packages/server/prisma/schema.prisma
+++ b/packages/server/prisma/schema.prisma
@@ -73,6 +73,7 @@ enum InviteReferralStatus {
 
 model User {
   id                               String   @id @default(uuid())
+  inviteCode                       String?  @unique @map("invite_code") @db.VarChar(6)
   openid                           String   @unique
   unionid                          String?
   phone                            String?
@@ -254,6 +255,8 @@ model Order {
   cardTypeId      String      @map("card_type_id")
   membershipId    String?     @map("membership_id")
   orderNo         String      @unique @map("order_no")
+  inviteInviterId String?     @map("invite_inviter_id")
+  purchasedCategory String?  @map("purchased_category")
   amount          Decimal     @db.Decimal(10, 0)
   status          OrderStatus @default(PENDING)
   wxTransactionId String?     @map("wx_transaction_id")
diff --git a/packages/server/src/flash-sale/__tests__/flash-sale-invite.spec.ts b/packages/server/src/flash-sale/__tests__/flash-sale-invite.spec.ts
new file mode 100644
index 0000000..80e2e5e
--- /dev/null
+++ b/packages/server/src/flash-sale/__tests__/flash-sale-invite.spec.ts
@@ -0,0 +1,25 @@
+import { FlashSaleService } from '../flash-sale.service'
+import { PrismaService } from '../../prisma/prisma.service'
+import { WechatPayService } from '../../payment/wechat-pay.service'
+
+describe('Flash sale referral pricing', () => {
+  it.each([true, false])('snapshots referral and category with eligible=%s', async (eligible) => {
+    const prisma = {
+      user: { findUnique: jest.fn().mockResolvedValue({ id: 'buyer', phone: '123', openid: 'openid' }) },
+      flashSale: {
+        findUnique: jest.fn().mockResolvedValue({ id: 'sale', title: 'sale', cardTypeId: 'card', cardType: { type: 'TIMES' }, status: 'ACTIVE', startTime: new Date(0), endTime: new Date(Date.now() + 60000), totalStock: 10, flashPrice: 999 }),
+        updateMany: jest.fn().mockResolvedValue({ count: 1 }),
+      },
+      inviteReferral: { findUnique: jest.fn().mockResolvedValue(eligible ? { inviterId: 'friend' } : null) },
+      order: { create: jest.fn().mockImplementation(({ data }) => ({ ...data, id: 'order' })) },
+      flashSaleOrder: { create: jest.fn().mockResolvedValue({ id: 'reserved' }) },
+      $transaction: jest.fn(),
+    }
+    prisma.$transaction.mockImplementation((fn) => fn(prisma))
+    const pay = { createUnifiedOrder: jest.fn().mockResolvedValue({}) }
+    const service = new FlashSaleService(prisma as unknown as PrismaService, pay as unknown as WechatPayService)
+    await service.purchase('sale', 'buyer')
+    expect(prisma.order.create).toHaveBeenCalledWith({ data: expect.objectContaining({ amount: eligible ? 949 : 999, inviteInviterId: eligible ? 'friend' : undefined, purchasedCategory: 'TIMES' }) })
+    expect(pay.createUnifiedOrder).toHaveBeenCalledWith(expect.objectContaining({ amount: eligible ? 949 : 999 }))
+  })
+})
diff --git a/packages/server/src/flash-sale/flash-sale.service.ts b/packages/server/src/flash-sale/flash-sale.service.ts
index 6ecc219..5d455b5 100644
--- a/packages/server/src/flash-sale/flash-sale.service.ts
+++ b/packages/server/src/flash-sale/flash-sale.service.ts
@@ -167,12 +167,15 @@ export class FlashSaleService {
         // ②-b: Create Order with flash sale price
         const orderNo = `FS${Date.now()}${Math.random().toString(36).substring(2, 8)}`
 
+        const referral = await tx.inviteReferral.findUnique({ where: { inviteeId: userId } })
         const order = await tx.order.create({
           data: {
             userId,
             cardTypeId: sale.cardTypeId,
             orderNo,
-            amount: sale.flashPrice,
+            amount: referral ? Math.round(Number(sale.flashPrice) * 95 / 100) : sale.flashPrice,
+            inviteInviterId: referral?.inviterId,
+            purchasedCategory: sale.cardType.type,
             status: OrderStatus.PENDING,
             flashSaleId,
           },
diff --git a/packages/server/src/invite/__tests__/invite.service.spec.ts b/packages/server/src/invite/__tests__/invite.service.spec.ts
new file mode 100644
index 0000000..da527e3
--- /dev/null
+++ b/packages/server/src/invite/__tests__/invite.service.spec.ts
@@ -0,0 +1,71 @@
+import { InviteService } from '../invite.service'
+import { PrismaService } from '../../prisma/prisma.service'
+import type { Prisma } from '@prisma/client'
+
+describe('InviteService marketing rules', () => {
+  function setup() {
+    const prisma = {
+      user: { findUniqueOrThrow: jest.fn(), updateMany: jest.fn(), findUnique: jest.fn() },
+      inviteReferral: { upsert: jest.fn(), findUnique: jest.fn(), updateMany: jest.fn() },
+      membership: { create: jest.fn() }, inviteRewardGrant: { create: jest.fn() },
+    }
+    return { prisma, service: new InviteService(prisma as unknown as PrismaService) }
+  }
+  it('lazily reuses existing short codes without writing', async () => {
+    const { prisma, service } = setup()
+    prisma.user.findUniqueOrThrow.mockResolvedValue({ inviteCode: 'ABC234' })
+    expect(await service.ensureCode('user')).toBe('ABC234')
+    expect(prisma.user.updateMany).not.toHaveBeenCalled()
+  })
+  it('retries code collisions and only writes if still missing', async () => {
+    const { prisma, service } = setup()
+    prisma.user.findUniqueOrThrow.mockResolvedValue({ inviteCode: null })
+    prisma.user.updateMany.mockRejectedValueOnce({ code: 'P2002' }).mockResolvedValueOnce({ count: 1 })
+    expect(await service.ensureCode('user')).toMatch(/^[23456789A-HJ-NP-Z]{6}$/)
+    expect(prisma.user.updateMany).toHaveBeenCalledTimes(2)
+    expect(prisma.user.updateMany.mock.calls[0][0].where).toEqual({ id: 'user', inviteCode: null })
+  })
+  it('reads the winning code when concurrent generation already filled it', async () => {
+    const { prisma, service } = setup()
+    prisma.user.findUniqueOrThrow.mockResolvedValueOnce({ inviteCode: null }).mockResolvedValueOnce({ inviteCode: 'ABC234' })
+    prisma.user.updateMany.mockResolvedValue({ count: 0 })
+    expect(await service.ensureCode('user')).toBe('ABC234')
+  })
+  it('rejects invalid, self and changed inviter codes', async () => {
+    const { prisma, service } = setup()
+    prisma.user.findUnique.mockResolvedValueOnce(null).mockResolvedValueOnce({ id: 'self' }).mockResolvedValueOnce({ id: 'friend' })
+    await expect(service.confirmCode('self', 'ABC234')).rejects.toThrow('不存在')
+    await expect(service.confirmCode('self', 'ABC234')).rejects.toThrow('自己')
+    prisma.inviteReferral.upsert.mockResolvedValue({ inviterId: 'original' })
+    await expect(service.confirmCode('self', 'ABC234')).rejects.toThrow('其他好友')
+  })
+  it('accepts repeat confirmation and recovers a concurrent binding to the same inviter', async () => {
+    const { prisma, service } = setup()
+    prisma.user.findUnique.mockResolvedValue({ id: 'friend' })
+    prisma.user.findUniqueOrThrow.mockResolvedValue({ inviteCode: 'XYZ234' })
+    prisma.inviteReferral.upsert.mockRejectedValueOnce({ code: 'P2002' }).mockResolvedValueOnce({ inviterId: 'friend' })
+    prisma.inviteReferral.findUnique.mockResolvedValue({ inviterId: 'friend' })
+    expect(await service.confirmCode('self', 'ABC234')).toEqual({ inviteCode: 'XYZ234', discountEligible: true })
+    expect(await service.confirmCode('self', 'ABC234')).toEqual({ inviteCode: 'XYZ234', discountEligible: true })
+  })
+
+  it.each(['TRIAL', null])('does not reward category %s', async (purchasedCategory) => {
+    const { prisma, service } = setup()
+    await service.rewardPaidOrder(prisma as unknown as Prisma.TransactionClient, { userId: 'user', inviteInviterId: 'friend', purchasedCategory }, new Date())
+    expect(prisma.inviteReferral.updateMany).not.toHaveBeenCalled()
+    await service.recordQualifiedTrialBooking('booking')
+    expect(prisma.membership.create).not.toHaveBeenCalled()
+  })
+  it.each(['TIMES', 'DURATION'])('grants one usable class for %s even without an existing membership', async (purchasedCategory) => {
+    const { prisma, service } = setup()
+    prisma.inviteReferral.updateMany.mockResolvedValueOnce({ count: 1 }).mockResolvedValueOnce({ count: 0 })
+    prisma.membership.create.mockResolvedValue({ id: 'reward' })
+    const order = { userId: 'user', inviteInviterId: 'friend', purchasedCategory }
+    const tx = prisma as unknown as Prisma.TransactionClient
+    await service.rewardPaidOrder(tx, order, new Date())
+    await service.rewardPaidOrder(tx, order, new Date())
+    expect(prisma.membership.create).toHaveBeenCalledTimes(1)
+    expect(prisma.membership.create).toHaveBeenCalledWith({ data: expect.objectContaining({ userId: 'friend', remainingTimes: 1, totalTimes: 1, status: 'ACTIVE' }) })
+    expect(prisma.inviteRewardGrant.create).toHaveBeenCalledTimes(1)
+  })
+})
diff --git a/packages/server/src/invite/invite.constants.ts b/packages/server/src/invite/invite.constants.ts
index 7aedb6a..a9c15aa 100644
--- a/packages/server/src/invite/invite.constants.ts
+++ b/packages/server/src/invite/invite.constants.ts
@@ -1,3 +1,3 @@
-export const INVITE_REWARD_REQUIRED_COUNT = 3
+export const INVITE_REWARD_REQUIRED_COUNT = 1
 export const INVITE_REWARD_TIMES = 1
 
diff --git a/packages/server/src/invite/invite.controller.ts b/packages/server/src/invite/invite.controller.ts
index b96e080..b8bf20f 100644
--- a/packages/server/src/invite/invite.controller.ts
+++ b/packages/server/src/invite/invite.controller.ts
@@ -1,13 +1,30 @@
-import { Controller, Get, UseGuards } from '@nestjs/common'
+import { IsString, Matches } from 'class-validator'
+import { Body, Controller, Get, Post, UseGuards } from '@nestjs/common'
 import { JwtAuthGuard } from '../auth/jwt-auth.guard'
 import { CurrentUser } from '../common/decorators/current-user.decorator'
 import { InviteService } from './invite.service'
 
+class ConfirmInviteDto {
+  @IsString()
+  @Matches(/^[23456789A-HJ-NP-Z]{6}$/i)
+  code!: string
+}
+
 @Controller('invite')
 @UseGuards(JwtAuthGuard)
 export class InviteController {
   constructor(private readonly inviteService: InviteService) {}
 
+  @Get('code')
+  getCode(@CurrentUser('sub') userId: string) {
+    return this.inviteService.getCodeStatus(userId)
+  }
+
+  @Post('confirm')
+  confirm(@CurrentUser('sub') userId: string, @Body() body: ConfirmInviteDto) {
+    return this.inviteService.confirmCode(userId, body.code)
+  }
+
   @Get('activity')
   getActivity(@CurrentUser('sub') userId: string) {
     return this.inviteService.getInviteActivitySummary(userId)
diff --git a/packages/server/src/invite/invite.service.ts b/packages/server/src/invite/invite.service.ts
index 7a2c7c0..b4f76cc 100644
--- a/packages/server/src/invite/invite.service.ts
+++ b/packages/server/src/invite/invite.service.ts
@@ -3,7 +3,8 @@ import {
   Injectable,
   NotFoundException,
 } from '@nestjs/common'
-import type { InviteReferral, InviteRewardGrant, Membership } from '@prisma/client'
+import { randomInt } from 'crypto'
+import type { Prisma, InviteReferral, InviteRewardGrant } from '@prisma/client'
 import { InviteReferralStatus, MembershipStatus, OrderStatus } from '@mp-pilates/shared'
 import type { InviteActivitySummary } from '@mp-pilates/shared'
 import { PrismaService } from '../prisma/prisma.service'
@@ -70,50 +71,72 @@ export class InviteService {
     })
   }
 
-  async recordQualifiedTrialBooking(bookingId: string): Promise<void> {
-    const booking = await this.prisma.booking.findUnique({
-      where: { id: bookingId },
-      include: {
-        membership: { include: { cardType: true } },
-      },
-    })
+  // Legacy booking callbacks must never qualify trial purchases.
+  async recordQualifiedTrialBooking(_bookingId: string): Promise<void> {}
 
-    if (!booking || booking.status !== 'COMPLETED' || !this.isTrialCardType(booking.membership.cardType.type)) {
-      return
+  async ensureCode(userId: string): Promise<string> {
+    for (let attempt = 0; attempt < 12; attempt++) {
+      const user = await this.prisma.user.findUniqueOrThrow({ where: { id: userId } })
+      if (user.inviteCode) return user.inviteCode
+      const alphabet = '23456789ABCDEFGHJKLMNPQRSTUVWXYZ'
+      const code = Array.from({ length: 6 }, () => alphabet[randomInt(alphabet.length)]).join('')
+      try {
+        const updated = await this.prisma.user.updateMany({
+          where: { id: userId, inviteCode: null }, data: { inviteCode: code },
+        })
+        if (updated.count) return code
+      } catch (error) {
+        if ((error as { code?: string }).code !== 'P2002') throw error
+      }
     }
+    throw new BadRequestException('邀请码生成繁忙，请重试')
+  }
 
-    const referral = await this.prisma.inviteReferral.findFirst({
-      where: {
-        inviteeId: booking.userId,
-        status: {
-          in: [InviteReferralStatus.REGISTERED, InviteReferralStatus.TRIAL_PURCHASED],
-        },
-        qualifiedBookingId: null,
-      },
-      orderBy: { createdAt: 'asc' },
-    })
+  async getCodeStatus(userId: string) {
+    const inviteCode = await this.ensureCode(userId)
+    const referral = await this.prisma.inviteReferral.findUnique({ where: { inviteeId: userId } })
+    return { inviteCode, discountEligible: !!referral }
+  }
 
-    if (!referral) {
-      return
+  async confirmCode(userId: string, code: string) {
+    const inviter = await this.prisma.user.findUnique({ where: { inviteCode: code.toUpperCase() } })
+    if (!inviter) throw new BadRequestException('邀请码不存在，请检查后重试')
+    if (inviter.id === userId) throw new BadRequestException('不能使用自己的邀请码')
+    let referral: InviteReferral | null
+    try {
+      referral = await this.prisma.inviteReferral.upsert({
+        where: { inviteeId: userId }, update: {},
+        create: { inviterId: inviter.id, inviteeId: userId },
+      })
+    } catch (error) {
+      // MySQL upserts may race on the unique invitee key. Read the winner.
+      if ((error as { code?: string }).code !== 'P2002') throw error
+      referral = await this.prisma.inviteReferral.findUnique({ where: { inviteeId: userId } })
+      if (!referral) throw error
     }
+    if (referral.inviterId !== inviter.id) throw new BadRequestException('你已绑定其他好友的邀请码，已享有 95 折优惠')
+    return this.getCodeStatus(userId)
+  }
 
-    await this.prisma.inviteReferral.update({
-      where: { id: referral.id },
-      data: {
-        status: InviteReferralStatus.QUALIFIED,
-        qualifiedBookingId: booking.id,
-        qualifiedAt: booking.completedAt ?? new Date(),
-      },
+  async rewardPaidOrder(tx: Prisma.TransactionClient, order: { userId: string; inviteInviterId: string | null; purchasedCategory: string | null }, now: Date) {
+    if (!order.inviteInviterId || !order.purchasedCategory || order.purchasedCategory === 'TRIAL') return
+    const claimed = await tx.inviteReferral.updateMany({
+      where: { inviteeId: order.userId, inviterId: order.inviteInviterId, status: { not: 'QUALIFIED' } },
+      data: { status: 'QUALIFIED', qualifiedAt: now },
     })
-
-    await this.grantRewardsIfEligible(referral.inviterId)
+    if (!claimed.count) return
+    const membership = await tx.membership.create({ data: {
+      userId: order.inviteInviterId, cardTypeId: 'invite-reward-card',
+      remainingTimes: 1, totalTimes: 1, startDate: now,
+      expireDate: new Date(now.getTime() + 365 * 86400000), status: 'ACTIVE',
+    } })
+    await tx.inviteRewardGrant.create({ data: {
+      inviterId: order.inviteInviterId, membershipId: membership.id,
+      qualifiedReferralCount: 1, rewardTimes: 1,
+    } })
   }
 
   async getInviteActivitySummary(userId: string): Promise<InviteActivitySummary> {
-    const memberships = await this.prisma.membership.findMany({
-      where: { userId },
-      orderBy: [{ status: 'asc' }, { expireDate: 'desc' }],
-    })
     const referrals = await this.prisma.inviteReferral.findMany({
       where: { inviterId: userId },
       include: {
@@ -132,7 +155,7 @@ export class InviteService {
       orderBy: { grantedAt: 'desc' },
     })
 
-    const canInvite = memberships.some((membership: Membership) => membership.status === MembershipStatus.ACTIVE)
+    const canInvite = true
     const qualifiedInviteCount = referrals.filter((item: InviteReferral) => item.status === InviteReferralStatus.QUALIFIED).length
     const rewardedTimes = rewardGrants.reduce((sum: number, item: InviteRewardGrant) => sum + item.rewardTimes, 0)
     const pendingRewardGrantCount = Math.max(
@@ -144,7 +167,7 @@ export class InviteService {
     return {
       inviterId: userId,
       canInvite,
-      sharePath: `/pages/profile/invite?inviterId=${userId}`,
+      sharePath: `/pages/card/detail?showAll=1&inviteCode=${await this.ensureCode(userId)}`,
       rewardRuleInvitesRequired: INVITE_REWARD_REQUIRED_COUNT,
       rewardRuleTimes: INVITE_REWARD_TIMES,
       qualifiedInviteCount,
@@ -196,58 +219,4 @@ export class InviteService {
     }
   }
 
-  private async grantRewardsIfEligible(inviterId: string): Promise<void> {
-    const [qualifiedCount, rewardGrantCount] = await Promise.all([
-      this.prisma.inviteReferral.count({
-        where: {
-          inviterId,
-          status: InviteReferralStatus.QUALIFIED,
-        },
-      }),
-      this.prisma.inviteRewardGrant.count({ where: { inviterId } }),
-    ])
-
-    const shouldGrantCount = Math.floor(qualifiedCount / INVITE_REWARD_REQUIRED_COUNT)
-    const missingGrantCount = shouldGrantCount - rewardGrantCount
-
-    if (missingGrantCount <= 0) {
-      return
-    }
-
-    for (let index = 0; index < missingGrantCount; index += 1) {
-      const targetQualifiedCount = (rewardGrantCount + index + 1) * INVITE_REWARD_REQUIRED_COUNT
-      await this.prisma.$transaction(async (tx) => {
-        const membership = await tx.membership.findFirst({
-          where: {
-            userId: inviterId,
-            status: MembershipStatus.ACTIVE,
-          },
-          orderBy: [{ expireDate: 'desc' }, { createdAt: 'desc' }],
-        })
-
-        if (!membership) {
-          throw new BadRequestException('邀请人当前没有有效会员卡，无法发放奖励')
-        }
-
-        await tx.membership.update({
-          where: { id: membership.id },
-          data: {
-            remainingTimes: membership.remainingTimes === null
-              ? null
-              : membership.remainingTimes + INVITE_REWARD_TIMES,
-            status: MembershipStatus.ACTIVE,
-          },
-        })
-
-        await tx.inviteRewardGrant.create({
-          data: {
-            inviterId,
-            membershipId: membership.id,
-            qualifiedReferralCount: targetQualifiedCount,
-            rewardTimes: INVITE_REWARD_TIMES,
-          },
-        })
-      })
-    }
-  }
 }
diff --git a/packages/server/src/payment/__tests__/payment.service.spec.ts b/packages/server/src/payment/__tests__/payment.service.spec.ts
index 4ff9f5d..b3c9898 100644
--- a/packages/server/src/payment/__tests__/payment.service.spec.ts
+++ b/packages/server/src/payment/__tests__/payment.service.spec.ts
@@ -41,6 +41,7 @@ const mockUser = {
 const mockInviteService = {
   validateInviterForTrialOrder: jest.fn(),
   recordTrialOrderPaid: jest.fn(),
+  rewardPaidOrder: jest.fn(),
 }
 
 const buildMockOrder = (overrides: Partial<Record<string, unknown>> = {}) => ({
@@ -69,6 +70,7 @@ const mockPaymentParams = {
 
 function buildPrismaMock() {
   return {
+    inviteReferral: { findUnique: jest.fn().mockResolvedValue(null) },
     cardType: {
       findUnique: jest.fn(),
     },
@@ -76,6 +78,7 @@ function buildPrismaMock() {
       findUnique: jest.fn(),
     },
     order: {
+      updateMany: jest.fn().mockResolvedValue({ count: 1 }),
       create: jest.fn(),
       findUnique: jest.fn(),
       update: jest.fn(),
@@ -131,6 +134,16 @@ describe('PaymentService', () => {
   // ─── createOrder ────────────────────────────────────────────────────────────
 
   describe('createOrder', () => {
+    it.each(['TRIAL', 'TIMES', 'DURATION'])('applies 95 percent server-side to %s and snapshots attribution', async (type) => {
+      prisma.cardType.findUnique.mockResolvedValue({ ...mockCardType, type, price: new Decimal(999) })
+      prisma.user.findUnique.mockResolvedValue(mockUser)
+      prisma.inviteReferral.findUnique.mockResolvedValue({ inviterId: 'friend' })
+      prisma.order.create.mockResolvedValue(buildMockOrder({ amount: new Decimal(949) }))
+      await service.createOrder(mockUser.id, mockCardType.id)
+      expect(prisma.order.create).toHaveBeenCalledWith({ data: expect.objectContaining({ amount: 949, inviteInviterId: 'friend', purchasedCategory: type }) })
+      expect(wechat.createUnifiedOrder).toHaveBeenCalledWith(expect.objectContaining({ amount: 949 }))
+    })
+
     it('creates a PENDING order with correct amount and formatted orderNo', async () => {
       prisma.cardType.findUnique.mockResolvedValue(mockCardType)
       prisma.user.findUnique.mockResolvedValue(mockUser)
@@ -146,7 +159,7 @@ describe('PaymentService', () => {
           data: expect.objectContaining({
             userId: mockUser.id,
             cardTypeId: mockCardType.id,
-            amount: mockCardType.price,
+            amount: Number(mockCardType.price),
             status: OrderStatus.PENDING,
           }),
         }),
@@ -246,6 +259,18 @@ describe('PaymentService', () => {
       prisma.$transaction.mockImplementation(async (fn: (tx: typeof prisma) => Promise<unknown>) => fn(prisma))
     })
 
+    it('does not grant membership or referral rewards when another callback claimed the order', async () => {
+      prisma.order.updateMany.mockResolvedValue({ count: 0 })
+      await service.handleWxNotify(headers, successBody)
+      expect(prisma.membership.create).not.toHaveBeenCalled()
+      expect(mockInviteService.rewardPaidOrder).not.toHaveBeenCalled()
+    })
+
+    it('propagates reward issuance failure out of the payment transaction', async () => {
+      mockInviteService.rewardPaidOrder.mockRejectedValueOnce(new Error('reward failed'))
+      await expect(service.handleWxNotify(headers, successBody)).rejects.toThrow('reward failed')
+    })
+
     it('marks order as PAID and grants a new membership on valid callback', async () => {
       const result = await service.handleWxNotify(headers, successBody)
 
diff --git a/packages/server/src/payment/payment.service.ts b/packages/server/src/payment/payment.service.ts
index 613dd3c..fbf9d9e 100644
--- a/packages/server/src/payment/payment.service.ts
+++ b/packages/server/src/payment/payment.service.ts
@@ -55,6 +55,8 @@ export class PaymentService {
       await this.inviteService.validateInviterForTrialOrder(userId, inviterId)
     }
 
+    const referral = await this.prisma.inviteReferral.findUnique({ where: { inviteeId: userId } })
+    const amount = referral ? Math.round(Number(cardType.price) * 95 / 100) : Number(cardType.price)
     const orderNo = `${Date.now()}${Math.random().toString(36).substring(2, 8)}`
 
     const order = await this.prisma.order.create({
@@ -62,14 +64,16 @@ export class PaymentService {
         userId,
         cardTypeId,
         orderNo,
-        amount: cardType.price,
+        amount,
+        inviteInviterId: referral?.inviterId,
+        purchasedCategory: cardType.type,
         status: OrderStatus.PENDING,
       },
     })
 
     const paymentParams = await this.wechatPayService.createUnifiedOrder({
       orderNo,
-      amount: Number(cardType.price),
+      amount,
       openid: user.openid,
       description: cardType.name,
     })
@@ -122,6 +126,11 @@ export class PaymentService {
     const now = new Date()
 
     await this.prisma.$transaction(async (tx) => {
+      const claimed = await tx.order.updateMany({
+        where: { id: existingOrder.id, status: OrderStatus.PENDING },
+        data: { status: OrderStatus.PAID },
+      })
+      if (!claimed.count) return
       const membership = await this.membershipService.grantPurchasedCard(
         tx,
         existingOrder.userId,
@@ -138,6 +147,7 @@ export class PaymentService {
           membershipId: membership.id,
         },
       })
+      await this.inviteService.rewardPaidOrder(tx, existingOrder, now)
     })
 
     await this.inviteService.recordTrialOrderPaid(existingOrder.id)