.a1{
    background: url(../images/about.jpg) no-repeat;
    height: 400px;
    background-size: 100% 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}
.a1-title{
    font-weight: bold;
    font-size: 22px;
    color: #fff;
margin-bottom: 10px;
}
.a1-con>p{
    width: 50%;
}
.a1-con{
    font-size: 14px;
    line-height: 22px;
    color: #fff;
    margin-top: 20px;
}
.a1-con a,a.link{
    color: #6aaedf;
    text-decoration: underline;

}
.history-list-box{
    margin-bottom: 20px;
}
.his-title{
    text-align: center;
    font-weight: bold;
    font-size: 22px;
padding:15px 0;
}
.his-list-l{
    width: 45%;
    margin-right: 5%;
}
.his-list-r{
    width: 50%;
}
.his-list-l header{
    font-size: 18px;
}
.his-con{
    line-height: 23px;
}
.a2,.a4,.a6{
    margin:50px auto;
}
.a6{
    margin-top: 100px;
}
.a3-header{
    font-weight: 400;
    text-align: center;
    font-size: 36px;
}
.a3-con{
    line-height: 24px;
    margin:20px 0;
    font-size: 18px;
    text-align: center;

}
.a3-card-box dl{
    flex: 1;
    margin:0 10px
}
.a3-card-box dd{
    margin-top: 10px;
    font-weight: 400;
    text-align: center;
    font-size: 30px;
}
.a4-ul{
    width: 220px;
}
.a4-right-box{
    margin-left: 250px;
}
.a4-ul li{
    font-size: 16px;
    padding: 20px 10px;
    color: #555;
    background-color: #fff;
    border: 1px #555 solid;
    border-radius: 5px;
    display: inline-block;
    min-width: 200px;
    text-align: center;
    margin-bottom: 20px;
}
.a4-ul li.active{
    background-color: #91c120 !important;
    border: 1px solid #91c120 !important;
    color: #fff !important
}
.a4-ul li.active a{
    color: #fff;
}
.dd-02{
    font-weight: lighter !important;
}
.a6-header-big{
    font-weight: bold;
    text-align: center;
    margin-bottom: 20px;
    font-size: 20px;
}
.a6-l{
    width: 45%;
    margin-right: 5%;
}
.a6-r{
    width: 50%;
}
.green-title img{
    width: 20px;
    vertical-align: middle;
}
.green-title{
    color: #00a344;
    margin:10px 0;
font-weight: bold;
}
.a6-green-ul li{
    margin-bottom: 20px;
}
.a6-header-small{
    font-weight: bold;
    font-size: 20px;
}
.btn-a-no{
    text-decoration: none !important;
    color: #fff !important;
}
.mark{
    text-align: left;
    margin:10px 0;
}
.mark a{
    color: aqua;
    font-size: 14px;
    font-weight: bold;
}