.kche-item-img img {border: unset;}
 .quality-control-advantages-bg{position:relative;z-index:0;padding:2% 0}
.quality-control-advantages-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:#f6f6f6}