.protype-main .kche-t221 .kche-t221-img::before{content: "";position: absolute;top: 0;left: 0;width: 100%;height: 100%;background: rgba(0,0,0,.4);}
@media (max-width:1440px){.protype-main .kche-t217 .kche-t217-flex{padding:0 40px}
.protype-main .kche-t217 .kche-t217-img{width:25%}
.protype-main .kche-t217 .kche-t217-li{padding:30px 25px}
}
@media (max-width:1280px){.protype-main .kche-t217 .kche-t217-li{padding:20px 15px}
.protype-main .kche-t217 .kche-t217-li .kche-t217-icon{width:36px;height:36px}
.protype-main .kche-t217 .kche-t217-icon em{font-size:20px}}
@media (max-width: 1024px){.protype-main .kche-t217 .kche-t217-img{width:auto}}