.a1Bg{
    padding: 1.2rem 0;
    background: url(../img/about/a1Bg.webp) center center no-repeat;
    background-size: cover;
    overflow: hidden;
}
.a1Box{
    width: 70%;
    max-width: 980px;
    min-height: 3.1rem;
}
.a1Tit{
    line-height: 1.4;
}
.a1Text{
    line-height: 1.875;
    margin: .4rem 0;
}

.a2Bg{
    padding: .8rem 0;
    background-color: #FFFFFF;
    overflow: hidden;
    display: none;
}
.a2List li{
    flex: auto;
    position: relative;
    line-height: 1.5;
}
.a2List li + li::before{
    display: block;
    content: "";
    width: 1px;
    height: 100%;
    background-color: #D8D8D8;
    position: absolute;
    left: 0;
    top: 0;
}
.a2Item{
    padding: .3rem 0;
}
.a2Num{
    font-weight: bold;
    transition: all .3s;
}
.a2List li:hover .a2Num{
    color: var(--baseColor);
}
.a3Bg{
    padding: .2rem 0;
    background: linear-gradient(227deg, #5CAB8E 0%, #348D87 100%);
}
.a3Tit{
    position: relative;
    margin: .6rem 0;
}
.a3Tit h3{
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
    line-height: 1.6;
}
.a3Tit img{
    display: block;
    max-width: 100%;
    margin: 0 auto;
}
.a3Img{
    margin: .6rem 0 .8rem;
}
.a3Img img{
    display: block;
    max-width: 100% !important;
    height: auto !important;
    margin: 0 auto;
}
.a4Bg{
    background-color: #FFFFFF;
    overflow: hidden;
}
.a4Tit{
    margin: .8rem 0;
}
.a4Img{
    padding-bottom: 78.39%;
    background-color: #F8FCFC;
}
.a4Img .imgBg{
    left: .25rem;
    top: .25rem;
    bottom: .25rem;
    right: .25rem;
    background-size: contain;
}
.a4Name{
    line-height: 1.6;
    margin-top: .2rem;
}

.a4Swiper .swiper-pagination-lock{
    display: block;
    height: 0;
    overflow: hidden;
}
.a4Swiper .swiper-pagination{
    margin: .8rem 0;
}
.a4Swiper .swiper-pagination-bullet{
    width: 11px;
    height: 11px;
    background: rgba(0,0,0,0.1);
    border-radius: 0;
    opacity: 1;
    vertical-align: middle;
    margin: 0 .1rem !important;
    transition: all .3s;
}
.a4Swiper .swiper-pagination-bullet-active{
    width: 15px;
    height: 15px;
    background-color: #28AAAA;
}


@media (max-width:1600px){

}
@media (max-width:1400px){

}
@media (max-width:1200px){
    .a1Bg{
        padding: .6rem 0;
    }
    .a1Box{
        min-height: 0;
    }
    .a1Tit,
    .a1Text{
        margin: .2rem 0;
    }
    .a2Bg{
        padding: .6rem 0;
    }
    .a2Item{
        padding: .2rem 0;
    }
    .a4Tit{
        margin: .6rem 0;
    }
    .a4Swiper .swiper-pagination{
        margin: .6rem 0;
    }

}
@media (max-width:991px){

}
@media (max-width:767px){
    .a1Box{
        width: 90%;
    }
    .a2List{
        flex-wrap: wrap;
    }
    .a2List li{
        flex: none;
        width: 50%;
        margin: .1rem 0;
    }
    .a2List li:nth-child(2n + 1):before{
        display: none;
    }

}
@media (max-width:640px){
    .a4Swiper .swiper-pagination-bullet{
        width: 10px;
        height: 10px;
        margin: 0 .06rem !important;
    }
    .a4Swiper .swiper-pagination-bullet-active{
        width: 12px;
        height: 12px;
    }

}
@media (max-width:460px){
    .a1Box{
        width: 100%;
    }
    .a4Name{
        font-size: 14px;
    }

}