.ab-section{margin-bottom: 50px;}
.ab-section h2,.esg-section h2{font-size: 2rem;  font-weight: 600;}

.his-tit{
    font-size: 32px;
    font-weight: 600;
    color: #FFF;
    text-align: center;
    width: 100%;
    padding: 60px 0;
}
.his-tit span{
    font-size: 20px;
    display: block;
}
.ab-history {
    margin-bottom: 50px;
    padding: 30px 0;
    position: relative;
}
.ab-history::after {
    content: "";
    position: absolute;
    width: 5px;
    height: 92%;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    background: #d9dff5;
    z-index: -1;
}
.year-list{
    display: flex;
    flex-direction: column;
    align-content: center;
}
.year-list .year-tit{
    width: 75px;
    height: 75px;
    font-size: 22px;
    font-weight: 600;
    border-radius: 50%;
    background: #0029b7;
    color: #FFF;
    text-align: center;
    padding: 20px 0;
    margin: 0 auto 30px;
}
.year-list .year-r2{
    display: flex;
    flex-wrap: wrap;
    padding-bottom: 50px;
}
.year-list .year-r2 > div{
    width: 50%;
}
.year-list .year-r2 > div p{
    padding-bottom: 20px;
    border-bottom: 1px solid #CCC;
}
.year-list .year-r2 .year{
    font-size: 24px;
    font-weight: 600;
    color: #0029b7;
}
.year-list .year-r2 .year-right{
    position: relative;
    padding-left: 60px;
    order: 2;
}
.year-list .year-r2 .year-right .year::before{
    content: "";
    position: absolute;
    left: 15px;
    top: 0;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 12px 0 12px 25px;
    border-color: transparent transparent transparent #0029b7;
}
.year-list .year-r2 .year-left{
    position: relative;
    padding-right: 60px;
    margin-top: 12%;
    order: 1;
}
.year-list .year-r2 .year-left .year{
    text-align: right;
}
.year-list .year-r2 .year-left .year::before{
    content: "";
    position: absolute;
    right: 15px;
    top: 0;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 12px 25px 12px 0px;
    border-color: transparent #0029b7 transparent transparent;
}

.year2020 .year-r2{padding-bottom: 0;}
.year2020 .year-r2 .year-left{
    position: relative;
    padding-right: 60px;
    margin-top: 0;
    order: 1;
}
.year2020 .year-r2 .year-right{
    position: relative;
    padding-right: 60px;
    margin-top: 12%;
    order: 1;
}


.ab-r2{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-bottom: 30px;
}
.ab-r2.ab-right .ab-pic{
    order: 2;
}
.ab-r2 > div{
    width: 48%;
}
.ab-tit{
    color: #FFF;
    text-align: center;
    width: 100%;
    background: url("../images/ab-pic-5.jpg") center no-repeat;
    padding: 50px 8%;
}
@media (max-width: 768px) {
    .ab-r2 > div{
        width: 100%;
    }
    .ab-r2.ab-right .ab-pic{
    order: 1;
}    
    .ab-r2.ab-right .ab-txt{
    order: 2;
}
    .ab-r2 .ab-pic{
    text-align: center;
}
}
@media (max-width: 576px) {
    .year-list .year-r2 .year{
        padding-left: 40px;
    }
    .ab-history {
        margin-bottom: 30px;
    }
    .ab-history::after {
        height: calc(100% - 100px);
        left: 40px;
    }
    .year-list .year-tit{
        margin: 30px 0;
    }
    .year-list .year-r2{
        justify-content: flex-end;
        padding-bottom: 0px;
    }
    .year-list .year-r2 > div{
        width: calc(100% - 75px);
        margin-top: 20px;
    }
    .year-list .year-r2 .year-right{
        padding: 0px;
        order: 1;
    }
    .year-list .year-r2 .year-right .year::before{
        left: 5px;
    }
    .year-list .year-r2 .year-left{
        padding-right: 0px;
        margin-top: 20px;
        order: 2;
    }
    .year-list .year-r2 .year-left .year{
        text-align: left;
    }
    .year-list .year-r2 .year-left .year::before{
        left: 5px;
        border-width: 12px 0 12px 25px;
        border-color: transparent transparent transparent #0029b7;
    }

    .year2020 .year-r2 .year-left{
        order: 1;
    }
    .year2020 .year-r2 .year-right{
        margin-top: 20px;
        order: 2;
    }
}
@media (max-width: 480px) {
    .ab-history > div{ margin-bottom: 30px;}
    .ab-history::after {
        display: none;
    }
    .year-list .year-r2 > div{
        width:100%;
    }
    .ab-history .year2020 {
        margin: 0;
    }
    .ab-tit{
        padding: 30px 10px;
    }
}

/*ESG*/
.esg-section{padding: 0 0 50px;}
.esg-section > ul { padding: 20px 0 20px 30px; }
.esg-section > ul li{ list-style: none;margin-bottom: 10px;position: relative;}
.esg-section > ul li::before{ content: ""; position: absolute;left: -30px;top: 5px; width: 25px;height: 25px;background: url("../images/esg-check.svg") no-repeat center; }
.esg-section .ab-r2 {padding-top: 30px;}
.esg-section .ab-r2 > ul{width: 60%; padding-left: 16px;}
.esg-section .ab-r2 > ul li{margin-bottom: 10px;}
.esg-section .ab-r2 > div{width: 40%; }
.esg-b-tit{font-size: 24px;color: #0029B7;font-weight: 600;padding: 10px 0;}
@media (max-width: 768px) {
    .esg-section{padding: 0 0 30px;}
    .esg-section .ab-r2 > ul{width: 100%; }
    .esg-section .ab-r2 > div{width:  100%; text-align: center;}
}