fix(merch/detail): 滚动时立即隐藏滚动提示

pages_promotion/merch/detail.vue

@@ -24,7 +24,7 @@
 						<text class="icox icox-xing"></text>
 					</view>
 					<view class="desc-wrap">
-						<view class="desc-text" :key="descKey" :class="{ 'desc-expanded': isDescExpanded }" @click="toggleDesc">
+						<view class="desc-text" :key="descKey" :class="{ 'desc-expanded': isDescExpanded }" @click="toggleDesc" @scroll="handleDescScroll">
 							<view class="scroll-desc">{{ merch.desc }}</view>
 							<view class="scroll-hint" v-if="isShowScrollHint">
 								<text class="scroll-icon">↓</text>
@@ -379,6 +379,11 @@ export default {
 				}
 			}
 		},
+		handleDescScroll() {
+			if (this.isShowScrollHint) {
+				this.isShowScrollHint = false;
+			}
+		},
 		initHeaderHeight() {
 			if (!this.merch || !this.merch.merch_name) return;
 			if (this.headerHeightInited) return;