uniapp u-popup弹窗展示时禁止底部内容滚动，禁止滑动遮罩层滚动

<template><view><page-meta :page-style="popupOpen ? 'overflow:hidden;' : ''" /><view class="content"><!-- 底部可滚动内容 --><scroll-view scroll-y style="height: 500rpx;"><view v-for="i in 30" :key="i">内容 {{ i }}</view></scroll-view></view><u-button @click="popupOpen = true">打开弹窗</u-button><u-popup v-model="popupOpen" mode="bottom"><view class="popup-box">弹窗内容<u-button @click="popupOpen = false">关闭</u-button></view></u-popup></view>
</template><script>
export default {data() {return {popupOpen: false}}
}
</script>

关键代码：

page-meta :page-style="popupOpen ? 'overflow:hidden;' : ''"