实施美团式的支付流程，并增强相关功能

- 将支付流程统一至礼品支付页面，禁止从阅读页面进行支付，以优化用户体验。
- 更新了礼物支付详情页面，为发起人和朋友展示了不同的用户界面元素，包括为发起人提供的分享按钮和为朋友提供的支付按钮。
- 增强了后端逻辑，以确保在支付处理过程中正确将收益归因于发起人。
- 增加了每日章节更新，并改进了章节页面的加载状态，以提升用户交互体验。
- 更新了文档，以反映新的支付流程和相关变更。

miniprogram/pages/chapters/chapters.js

@@ -6,6 +6,7 @@
  */
 
 const app = getApp()
+const { trackClick } = require('../../utils/trackClick')
 
 Page({
   data: {
@@ -55,6 +56,7 @@ Page({
     this.updateUserStatus()
     this.loadVipStatus()
     this.loadParts()
+    this.loadDailyChapters()
   },
 
   // 懒加载：仅拉取篇章列表 + totalSections + fixedSections
@@ -174,7 +176,34 @@ Page({
   },
 
   onPullDownRefresh() {
-    this.loadParts().then(() => wx.stopPullDownRefresh()).catch(() => wx.stopPullDownRefresh())
+    Promise.all([this.loadParts(), this.loadDailyChapters()])
+      .then(() => wx.stopPullDownRefresh())
+      .catch(() => wx.stopPullDownRefresh())
+  },
+
+  // 每日新增：用 latest-chapters 接口，展示最近更新章节
+  async loadDailyChapters() {
+    try {
+      const res = await app.request({ url: '/api/miniprogram/book/latest-chapters', silent: true })
+      const list = (res && res.data) ? res.data : []
+      const pt = (c) => (c.partTitle || c.part_title || '').toLowerCase()
+      const exclude = c => !pt(c).includes('序言') && !pt(c).includes('尾声') && !pt(c).includes('附录')
+      const daily = list
+        .filter(exclude)
+        .slice(0, 10)
+        .map(c => {
+          const d = new Date(c.updatedAt || c.updated_at || Date.now())
+          const title = c.section_title || c.sectionTitle || c.title || c.chapterTitle || ''
+          return {
+            id: c.id,
+            mid: c.mid ?? c.MID ?? 0,
+            title,
+            price: c.price ?? 1,
+            dateStr: `${d.getMonth() + 1}/${d.getDate()}`
+          }
+        })
+      this.setData({ dailyChapters: daily })
+    } catch (e) { console.log('[Chapters] 加载每日新增失败:', e) }
   },
 
   onShow() {
@@ -219,6 +248,7 @@ Page({
 
   // 切换展开状态，展开时懒加载该篇章章节
   async togglePart(e) {
+    trackClick('chapters', 'tab_click', e.currentTarget.dataset.id || '篇章')
     const partId = e.currentTarget.dataset.id
     const isExpanding = this.data.expandedPart !== partId
     this.setData({
@@ -231,6 +261,7 @@ Page({
   goToRead(e) {
     const id = e.currentTarget.dataset.id
     const mid = e.currentTarget.dataset.mid || app.getSectionMid(id)
+    trackClick('chapters', 'card_click', id || '章节')
     const q = mid ? `mid=${mid}` : `id=${id}`
     wx.navigateTo({ url: `/pages/read/read?${q}` })
   },
@@ -249,6 +280,7 @@ Page({
 
   // 跳转到搜索页
   goToSearch() {
+    trackClick('chapters', 'nav_click', '搜索')
     wx.navigateTo({ url: '/pages/search/search' })
   },
 

miniprogram/pages/chapters/chapters.wxml

@@ -40,6 +40,31 @@
 
   <!-- 目录内容 -->
   <view class="chapters-content" wx:if="{{!partsLoading}}">
+    <!-- 每日新增（最近更新章节快捷入口） -->
+    <view class="daily-section" wx:if="{{dailyChapters.length > 0}}">
+      <view class="daily-header">
+        <text class="daily-title">每日新增</text>
+        <text class="daily-badge">+{{dailyChapters.length}}</text>
+      </view>
+      <view class="daily-list">
+        <view 
+          class="daily-item" 
+          wx:for="{{dailyChapters}}" 
+          wx:key="id"
+          bindtap="goToRead"
+          data-id="{{item.id}}"
+          data-mid="{{item.mid}}"
+        >
+          <view class="daily-dot"></view>
+          <view class="daily-content">
+            <text class="daily-item-title">{{item.title}}</text>
+            <text class="daily-item-meta">{{item.dateStr}} · ¥{{item.price}}</text>
+          </view>
+          <text class="daily-arrow">›</text>
+        </view>
+      </view>
+    </view>
+
     <!-- 序言（优先传 mid，阅读页用 by-mid 请求） -->
     <view class="chapter-item" bindtap="goToRead" data-id="preface" data-mid="{{fixedSectionsMap.preface}}">
       <view class="item-left">
@@ -83,6 +108,7 @@
                       <text class="section-lock {{section.isFree || isVip || (!section.isPremium && hasFullBook) || purchasedSections.indexOf(section.id) > -1 ? 'lock-open' : 'lock-closed'}}">{{section.isFree || isVip || (!section.isPremium && hasFullBook) || purchasedSections.indexOf(section.id) > -1 ? '○' : '●'}}</text>
                       <text class="section-title {{section.isFree || isVip || (!section.isPremium && hasFullBook) || purchasedSections.indexOf(section.id) > -1 ? '' : 'text-muted'}}">{{section.id}} {{section.title}}</text>
                       <text wx:if="{{section.isNew}}" class="tag tag-new">NEW</text>
+                      <text wx:if="{{section.isPremium}}" class="tag tag-vip">增值</text>
                     </view>
                     <view class="section-right">
                       <text wx:if="{{section.isFree}}" class="tag tag-free">免费</text>

miniprogram/pages/chapters/chapters.wxss

@@ -174,6 +174,89 @@
   box-sizing: border-box;
 }
 
+/* ===== 每日新增 ===== */
+.daily-section {
+  margin-bottom: 32rpx;
+  padding: 24rpx;
+  background: #1c1c1e;
+  border-radius: 24rpx;
+  border: 2rpx solid rgba(255, 255, 255, 0.05);
+}
+
+.daily-header {
+  display: flex;
+  align-items: center;
+  gap: 16rpx;
+  margin-bottom: 24rpx;
+}
+
+.daily-title {
+  font-size: 30rpx;
+  font-weight: 600;
+  color: #ffffff;
+}
+
+.daily-badge {
+  font-size: 22rpx;
+  padding: 4rpx 12rpx;
+  background: #F6AD55;
+  color: #ffffff;
+  border-radius: 20rpx;
+}
+
+.daily-list {
+  display: flex;
+  flex-direction: column;
+  gap: 0;
+}
+
+.daily-item {
+  display: flex;
+  align-items: center;
+  padding: 16rpx 0;
+  border-bottom: 1rpx solid rgba(255, 255, 255, 0.06);
+}
+
+.daily-item:last-child {
+  border-bottom: none;
+}
+
+.daily-dot {
+  width: 12rpx;
+  height: 12rpx;
+  border-radius: 50%;
+  background: rgba(0, 206, 209, 0.6);
+  margin-right: 20rpx;
+  flex-shrink: 0;
+}
+
+.daily-content {
+  flex: 1;
+  min-width: 0;
+  display: flex;
+  flex-direction: column;
+  gap: 4rpx;
+}
+
+.daily-item-title {
+  font-size: 26rpx;
+  color: #ffffff;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.daily-item-meta {
+  font-size: 22rpx;
+  color: rgba(255, 255, 255, 0.4);
+}
+
+.daily-arrow {
+  font-size: 28rpx;
+  color: rgba(255, 255, 255, 0.4);
+  margin-left: 16rpx;
+}
+
 /* ===== 章节项 ===== */
 .chapter-item {
   display: flex;