.home-certi .certi-img img:nth-child(5){z-index:9;width:24%;}
.home-certi .certi-img img:nth-child(4),.home-certi .certi-img img:nth-child(6){z-index:7;width:20%;}
.home-certi .certi-img img:nth-child(3),.home-certi .certi-img img:nth-child(7){z-index:5;width:15%;}
.home-certi .certi-img img:nth-child(2),.home-certi .certi-img img:nth-child(8){z-index:4;width:11%;}
.home-certi .certi-img img:nth-child(1),.home-certi .certi-img img:nth-child(9){z-index:3;width:6%;}
@media (max-width:768px){.home-certi .certi-img img{margin:0 -2px;}
.home-certi .certi-img img:nth-child(5){z-index:9;width:18%;}
.home-certi .certi-img img:nth-child(4),.home-certi .certi-img img:nth-child(6){z-index:7;width:14%;}
.home-certi .certi-img img:nth-child(3),.home-certi .certi-img img:nth-child(7){z-index:5;width:10%;}
.home-certi .certi-img img:nth-child(2),.home-certi .certi-img img:nth-child(8){z-index:4;width:6%;}
.home-certi .certi-img img:nth-child(1),.home-certi .certi-img img:nth-child(9){z-index:3;width:2%;}}
.home-banner .swiper-slide>a::after{display: none;}