/**/
.section_back{
    overflow: hidden;
    position: relative;
    z-index: 1;
    margin: 118px 0 0 0;
}

.section_back:after{
    content: '';
    position: absolute;
    z-index: -1;
    width: 100%;
    top: 0;
    left: 0;
    height: 205px;
    background: #3D4146;
}
.section_back .wrap{
    width: 1100px;
    margin: 51px auto 109px;
    max-width: 90%;
}
.section_back .wrap .title{
    font-size: 22px;
    font-weight: 400;
    color: #FFFFFF;
    margin: 0 0 27px 0;
}
.section_back .wrap .form{
    height: 600px;
    background: #FFFFFF;
    box-shadow: 0px 0px 20px 0px rgba(0,0,0,0.1);
    padding: 67px 60px 60px 60px;
}

.section_back .wrap .form .headline .display{
    display: flex;
}
.section_back .wrap .form .headline .display .list{
    width: 33.3%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.section_back .wrap .form .headline .display .list .circle{
    width: 24px;
    height: 24px;
    background: #FFFFFF;
    border: 1px solid #CCCCCC;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 400;
    color: #666666;
    margin: 0 13px 0 0;
    transition: 0.7s;
}
.section_back .wrap .form .headline .display .list p{
    font-size: 16px;
    font-weight: 400;
    color: #666666;
}
.section_back .wrap .form .headline .display .list.on .circle{
    background: #004BAA;
    color: #fff;
    border: 1px solid transparent;
}
.section_back .wrap .form .headline .line{
    width: 100%;
    height: 4px;
    background: #E6E6E6;
    margin: 11px 0 127px 0;
}
.section_back .wrap .form .headline .line div{
    width: 0;
    height: 4px;
    background: #004BAA;
    transition: 0.6s;
}
.section_back .wrap .form .content .matter{
    display: none;
    width: 400px;
    margin: auto;
}
.section_back .wrap .form .content .matter.on{
    display: block;
}

.section_back .wrap .form .content .matter input{
    width: 400px;
    height: 46px;
    background: #FFFFFF;
    border: 1px solid #E6E6E6;
    padding: 0 13px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    font-size: 14px;
    margin: 0 0 17px 0;
}
.section_back .wrap .form .content .matter input::placeholder{
    color: #999999;
}
.section_back .wrap .form .content .matter .code{
    margin: 0 0 47px 0;
    display: flex;
    align-items: center;
}
.section_back .wrap .form .content .matter .code input{
    width: 190px;
    margin: 0 15px 0 0;
}

.section_back .wrap .form .content .button{
    width: 400px;
    margin: auto;
    display: flex;
    justify-content: space-between;
}
.section_back .wrap .form .content .button .item{
    width: 190px;
    height: 40px;
    background: #F5F5F5;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #999999;
    cursor: pointer;
}
.section_back .wrap .form .content .button button.item{
    background: #004BAA;
    color: #fff;
}
.section_back .wrap .form .content .matter_2 .email{
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 0 0 35px 0;
}
.section_back .wrap .form .content .matter_2 .email input{
    width: 242px;
    margin: 0;
}
.section_back .wrap .form .content .matter_2 .email .obtain{
    width: 140px;
    height: 46px;
    background: #FFFFFF;
    border: 1px solid #E6E6E6;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #000000;
    cursor: pointer;
    transition: 0.6s;
}
.section_back .wrap .form .content .matter_2 .email .obtain.on{
    background: #efefef;
    border: 1px solid transparent;
    pointer-events: none;
}
.section_back .wrap .form .content .matter_3{
    width: 358px;
}
.section_back .wrap .form .content .matter_3 .green{
    display: flex;
}
.section_back .wrap .form .content .matter_3 .green .circle{
    width: 31px;
    height: 31px;
    background: #00A854;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 12px 0 0;
}
.section_back .wrap .form .content .matter_3 .green .circle svg{
    fill: #fff;
    width: 16px;
    height: 16px;
}
.section_back .wrap .form .content .matter_3 .green .circle svg path{
    fill: #fff;
}
.section_back .wrap .form .content .matter_3 .green > .text{
    padding: 5px 0 0 0;
}
.section_back .wrap .form .content .matter_3 .green > .text p:first-child{
    font-size: 18px;
    font-weight: 400;
    color: #00A854;
    margin: 0 0 15px 0;
}
.section_back .wrap .form .content .matter_3 .green > .text p:last-child{
    font-size: 14px;
    font-weight: 400;
    color: #333333;
}
.section_back .wrap .form .content .matter_3 .green > .text p:last-child strong{
    color: #D50000;
    font-weight: normal;
}
.section_back .wrap .form .content .matter_3 .button{
    margin: 81px 0 0 0;
}
.section_back .wrap .form .content .matter_3 .button .item{
    width: 358px;
    height: 51px;
    background: #004BAA;
    font-size: 14px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #FFFFFF;
}
@media screen and (max-width: 1024px) {
    .section_back .wrap .form .headline .line {
        margin: 11px 0 34px 0;
    }
    .section_back .wrap .form{
        height: auto;
        padding: 10% 5%;
    }
    .section_back .wrap .form .headline .display .list p{
        font-size: 12px;
    }
    .section_back .wrap .form .content .matter,.section_back .wrap .form .content .button, .section_back .wrap .form .content .matter input{
        max-width: 100%;
    }
    .section_back .wrap .form .content .button .item{
        width: 47%;
    }
    .section_back .wrap .form .content .matter .code{
        margin: 0 0 22px 0;
    }
    .section_back .wrap .form .content .matter_2 .email input{
        width: 56%;
    }
    .section_back .wrap .form .content .matter_2 .email .obtain{
        width: 40%;
    }
    .section_back .wrap{
        margin: 51px auto 32px;
    }
}