.home-service .service-item::before{content: '';width:100%;height:100%;display:block;position: absolute;top:0;left:0;background: rgba(0,0,0,0.3);}
.home-service .service-item .box{top:0;bottom:auto;}
@media (min-width:769px){.home-service .service-item .box .text{font-size:18px;}
.home-choose .choose-list li .text,.home-about .about-info .list li{font-size:var(--fontsize18)}}