feat: 中奖名单页动态人数、分页提示与空态

- 顶部幸运持卡人数由各期中奖总数动态求和
- 名单不足一页时隐藏加载更多，各期加载状态独立管理
- 无名单时展示暂无数据空态

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

pages/winners/winners.vue

@@ -15,7 +15,7 @@
 			<view class="stats-card">
 				<image class="stats-gift" src="https://zhihuiyou.oss-cn-shenzhen.aliyuncs.com/hhrs/hhrs_xyckr.png" mode="aspectFit"></image>
 				<text class="stats-label">已产生</text>
-				<text class="stats-number">7,000</text>
+				<text class="stats-number">{{ totalWinners.toLocaleString() }}</text>
 				<text class="stats-label">名幸运持卡人</text>
 			</view>
 		</view>
@@ -46,18 +46,26 @@
 
 		<!-- 中奖者表格 -->
 		<view class="table-area">
-			<view class="table-header">
-				<text class="table-col col-name">姓名</text>
-				<text class="table-col col-idcard">身份证</text>
-				<text class="table-col col-phone">手机号码</text>
-			</view>
-			<view class="table-row" v-for="(item, index) in currentList" :key="index">
-				<text class="table-col col-name">{{ item.memberName }}</text>
-				<text class="table-col col-idcard">{{ item.memberIdentityNo }}</text>
-				<text class="table-col col-phone">{{ item.memberPhone }}</text>
-			</view>
-			<view class="loadmore-area">
-				<u-loadmore :status="loadStatus" :loading-text="'加载中...'" :loadmore-text="'上拉加载更多'" :nomore-text="'没有更多了'" />
+			<template v-if="currentList.length > 0">
+				<view class="table-header">
+					<text class="table-col col-name">姓名</text>
+					<text class="table-col col-idcard">身份证</text>
+					<text class="table-col col-phone">手机号码</text>
+				</view>
+				<view class="table-row" v-for="(item, index) in currentList" :key="index">
+					<text class="table-col col-name">{{ item.memberName }}</text>
+					<text class="table-col col-idcard">{{ item.memberIdentityNo }}</text>
+					<text class="table-col col-phone">{{ item.memberPhone }}</text>
+				</view>
+				<!-- xuchao: 名单不足一页时隐藏加载更多 -->
+				<view class="loadmore-area" v-if="(totals[currentTab] || 0) > pageSize">
+					<u-loadmore :status="loadStatus" :loading-text="'加载中...'" :loadmore-text="'上拉加载更多'" :nomore-text="'没有更多了'" />
+				</view>
+			</template>
+			<!-- xuchao: 无名单时展示空态 -->
+			<view class="empty-area" v-else>
+				<u-icon name="empty" size="60" color="#c8c8c8"></u-icon>
+				<text class="empty-text">暂无数据</text>
 			</view>
 		</view>
 	</view>
@@ -72,9 +80,10 @@ export default {
 			winnerData: {},
 			pageNo: 1,
 			pageSize: 10,
-			total: 0,
-			loading: false,
-			loadStatus: 'loadmore',
+			totals: {},
+			totalWinners: 0,
+			inFlight: 0,
+			loadStatusMap: {},
 			keyword: ''
 		}
 	},
@@ -88,6 +97,10 @@ export default {
 				(item.memberName && item.memberName.toLowerCase().includes(kw)) ||
 				(item.memberPhone && item.memberPhone.includes(kw))
 			)
+		},
+		// xuchao: 各期独立的加载状态，避免并行请求互相覆盖
+		loadStatus() {
+			return this.loadStatusMap[this.currentTab] || 'nomore'
 		}
 	},
 	onLoad() {
@@ -110,45 +123,55 @@ export default {
 						data[index] = []
 					})
 					this.winnerData = data
+					// xuchao: 预置各期 key，保证 totals/loadStatusMap 的响应式
+					this.totals = {}
+					this.loadStatusMap = {}
+					dates.forEach((date, index) => {
+						this.$set(this.totals, index, 0)
+						this.$set(this.loadStatusMap, index, 'loading')
+					})
+					// xuchao: 预取各期第一页，汇总已产生总人数
 					if (this.tabs.length > 0) {
-						this.loadWinnerList(0)
+						this.tabs.forEach((tab, index) => {
+							this.loadWinnerList(index, 1, true)
+						})
 					}
 				}
 			})
 		},
-		loadWinnerList(tabIndex) {
+		loadWinnerList(tabIndex, pageNo, allowConcurrent) {
 			if (!this.tabs[tabIndex]) return
-			if (this.loading) return
-			this.loading = true
-			this.loadStatus = 'loading'
+			if (this.inFlight > 0 && !allowConcurrent) return
+			this.inFlight++
+			this.$set(this.loadStatusMap, tabIndex, 'loading')
 			const drawDate = this.tabs[tabIndex].date
 			this.$u.api.getWinnerList({
-				pageNo: this.pageNo,
+				pageNo: pageNo || this.pageNo,
 				pageSize: this.pageSize,
 				drawDate: drawDate
 			}).then(res => {
 				if (res.errcode === 0 && res.data) {
 					const list = res.data.list || []
-					if (this.pageNo === 1) {
+					const page = pageNo || this.pageNo
+					if (page === 1) {
 						this.$set(this.winnerData, tabIndex, list)
 					} else {
 						this.winnerData[tabIndex] = this.winnerData[tabIndex].concat(list)
 					}
-					this.total = res.data.total || 0
+					this.$set(this.totals, tabIndex, res.data.total || 0)
+					// xuchao: 各期总人数求和，用于顶部幸运持卡人数
+					this.totalWinners = Object.values(this.totals).reduce((sum, n) => sum + n, 0)
 				}
 			}).finally(() => {
-				this.loading = false
-				if (this.winnerData[tabIndex].length === 0) {
-					this.loadStatus = 'nomore'
-				} else if (this.winnerData[tabIndex].length >= this.total) {
-					this.loadStatus = 'nomore'
-				} else {
-					this.loadStatus = 'loadmore'
-				}
+				this.inFlight--
+				const len = this.winnerData[tabIndex].length
+				const total = this.totals[tabIndex] || 0
+				this.$set(this.loadStatusMap, tabIndex, len === 0 || len >= total ? 'nomore' : 'loadmore')
 			})
 		},
 		loadMore() {
-			if (this.winnerData[this.currentTab].length < this.total && !this.loading) {
+			const total = this.totals[this.currentTab] || 0
+			if (this.winnerData[this.currentTab].length < total && this.inFlight === 0) {
 				this.pageNo++
 				this.loadWinnerList(this.currentTab)
 			}
@@ -157,13 +180,20 @@ export default {
 			this.currentTab = index
 			this.pageNo = 1
 			if (this.winnerData[index].length === 0) {
-				this.loadWinnerList(index)
+				this.loadWinnerList(index, 1)
 			} else {
-				this.loadStatus = this.winnerData[index].length >= this.total ? 'nomore' : 'loadmore'
+				const total = this.totals[index] || 0
+				this.$set(this.loadStatusMap, index, this.winnerData[index].length >= total ? 'nomore' : 'loadmore')
 			}
 		},
 		goBack() {
-			uni.navigateBack()
+			// xuchao: 直接通过链接进入（无历史栈）时回到首页
+			const pages = getCurrentPages()
+			if (pages.length > 1) {
+				uni.navigateBack()
+			} else {
+				uni.reLaunch({ url: '/pages/index/index' })
+			}
 		},
 		onSearch() {
 			// 前端过滤，无需重新请求
@@ -408,4 +438,18 @@ export default {
 	padding: 24px 0;
 	color: #999999;
 }
+
+/* 空态 */
+.empty-area {
+	display: flex;
+	flex-direction: column;
+	align-items: center;
+	padding: 80px 0;
+	color: #999999;
+}
+
+.empty-text {
+	margin-top: 12px;
+	font-size: 14px;
+}
 </style>