———-demo.wxss————
.swiper-tab{
width: 100%;
border-bottom: 2rpx solid #777777;
text-align: center;
line-height: 80rpx;}
.swiper-tab-list{ font-size: 30rpx;
display: inline-block;
width: 33.33%;
color: #777777;
}
.on{ color: #da7c0c;
border-bottom: 5rpx solid #da7c0c;}
.swiper-box{ display: block