.kche-t194 .kche-t194-item{border: none;}
.kche-t196{position:relative}
.kche-t196:before{content:'';width:100vw;max-width:1920px;height:100%;display:block;position:absolute;top:0;left:50%;transform:translateX(-50%);z-index:-1;background:#f7f8fa}
.kche-t196 .kche-t196-contant{background:0 0}
.change-bg{position:relative}
.change-bg:before{content:'';width:100vw;max-width:1920px;height:100%;display:block;position:absolute;top:0;left:50%;transform:translateX(-50%);z-index:-1;background:#f7f8fa}
 .kche-t194 .kche-t194-tit p{font-weight: normal;}