.row-a1 {
    padding-top: 80px;
}

.a1_on{
    margin-bottom: 40px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.a1_tit{
    margin-bottom: 22px;
    color: #82c032;
    font-size: 24px;
}
.a1_text{
    line-height: 25px;
    color: #444;
    font-size: 16px;
}
.a1_on:nth-child(odd) .a1_left{
    padding-left: 23px;
}
.a1_on:nth-child(even) .a1_left{
    padding-right: 56px;
}

.a1_left{
    width: 265px;
}
.a1_on:nth-child(odd)>div:nth-child(2){
    margin-left: 114px;
}
.a1_on:nth-child(odd)::before{
    content: "";
    position: absolute;
    width: 16px;
    height: 26px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: url(/cn/pages/img/Arrows.png)no-repeat;
    -webkit-transform: translate(-50%, -50%);
    -moz-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    -o-transform: translate(-50%, -50%);
}
.a1_on:nth-child(even){
  flex-flow: row-reverse;

}
.a1_on:nth-child(even)>div:nth-child(2){
    margin-right: 114px;
}
.a1_on:nth-child(even)::before{
    content: "";
    position: absolute;
    width: 16px;
    height: 26px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: url(/cn/pages/img/Arrow2.png)no-repeat;
    -webkit-transform: translate(-50%, -50%);
    -moz-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    -o-transform: translate(-50%, -50%);
}


.a1_box{
    position: relative;
}
.a1_box::before{
    background: url(/cn/pages/img/boders.png)no-repeat;
    content: "";
    width: 2px;
    height: 93%;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    -webkit-transform: translate(-50%, -50%);
    -moz-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    -o-transform: translate(-50%, -50%);
}
.a1_right{
    width: 265px;
    height: 176px;
}
.a1_right img{
    width: 100%;
    height: 100%;
}

@media screen (max-width:769px) {
	.a1_left{
		width: 36%;
	}
	.a1_right{
		width: 100%;
		height: 100%; 
	}
}