.content{
    width: 100%;
    overflow: hidden;
}
.content .about_1{
    width: 100%;
    position: relative;
    margin-top: 72px;
}

.content .about_1 .banner{
    width: 100%;
    height: 186px;
    background: #eee;
}
.content .about_1 .banner .text{
    width: 1600px;
    margin: auto;
}
.content .about_1 .banner .text span{
    width: 280px;
    border-bottom: 2px solid #777;
    margin-top: 89px;
    display: block;
    height: 2px;
    float: left;
    margin-right: 30px;
}
.content .about_1 .banner .text h2{
    color: #333;
    font-size: 30px;
    line-height: 186px;
}

.content .about_1 .top{
    width: 100%;
    height: 236px;
    line-height: 236px;
    background: #fff;
}
.content .about_1 .top .text h1{
    font-size: 38px;
    margin-left: 80px;
    font-weight: 600;
}
.content .about_1 .top .text h1 i{
    font-size: 24px;
    height: 236px;
    line-height: 236px;
    vertical-align: top;
}
.content .about_1 .bottom{
    width: 100%;
    height: 350px;
    background: #323439;
}
.content .about_1 .bottom .c_width{
    position: relative;
}
.content .about_1 .bottom .text{
    position: absolute;
    width: 1035px;
    height: 315px;
    padding: 60px 80px 30px 80px;
    box-sizing: border-box;
    background: #fff;
    top: -60px;
    left: 0;
    z-index: 2;
    -webkit-box-shadow:0px -1px 15px #f0f0f0 ;
    -moz-box-shadow:0px -1px 15px #f0f0f0 ;
    box-shadow: 0 -1px 15px #a1a1a1;
}
.content .about_1 .bottom .text p{
    font-size: 16px;
    line-height: 30px;
    /* margin-top: 10px; */
    padding-bottom: 40px;
}
.content .about_1 .bottom .text ul li{
    float: left;
    /* width: 31%; */
    height: 115px;
}
.content .about_1 .bottom .text ul li:nth-child(1){
    margin-right: 80px;
}
.content .about_1 .bottom .text ul li:nth-child(2){
    margin-right: 80px;
}
.content .about_1 .bottom .text ul li:nth-child(3){
    margin-right: 80px;
}
.content .about_1 .bottom .text ul li h2{
    font-size: 26px;
    font-weight: bold;
    height: 60px;
    line-height: 60px;
    /* padding-bottom: 20px; */
    text-align: center;
}
.content .about_1 .bottom .text ul li h2 b{
    font-size: 40px;
}
.content .about_1 .bottom .text ul li span{
    font-size: 22px;
    height: 35px;
    display: block;
    line-height: 35px;
}

.content .about_1 .img{
    position: absolute;
    right: 0;
    top: 0;
}
.content .about_1 .img img{
    width: 100%;
}


.content .about_2{
    width: 100%;
    height: 495px;
    padding-top: 85px;
    padding-bottom: 100px;
    overflow: hidden;
}
.content .about_2 .left{
    width: 60%;
}
.content .about_2 .left .text{
    padding: 40px 95px 50px 80px;
}
.content .about_2 .left h1{
    font-size: 38px;
    margin-bottom: 20px;
    font-weight: 600;
}
.content .about_2 .left p{
    font-size: 16px;
    line-height: 30px;
    margin-bottom: 40px;
    text-align: justify;
}
.content .about_2 .left ul li{
    font-size: 16px;
    line-height: 30px;
}
.content .about_2 .left ul li span{
    width: 10px;
    height: 10px;
    border: 1px solid #7a7a7a;
    background: #7a7a7a;
    display: block;
    float: left;
    margin-top: 8px;
    margin-right: 5px;
}
.content .about_2 .left ul li b{
    width: 180px;
    display: block;
    float: left;
}
.content .about_2 .right{
    width: 568px;
}
.content .about_2 .right img{
    width: 100%;
}


.content .about_3{
    width: 100%;
    height: 900px;
    position: relative;
}
.content .about_3 .left{
    width: 50%;
    height: 100%;
    background: url(../images/about_3.png) no-repeat;
    padding-top: 70px;
    padding-bottom: 200px;
    box-sizing: border-box;
}
.content .about_3 .left .text{
    width: 800px;
    height: 100%;
    float: right;
    
    font-size: 38px;
    color: #fff;
    line-height: 630px;
    box-sizing: border-box;
    padding-left: 335px;
    font-weight: 600;
}
.content .about_3 .right{
    width: 50%;
    height: 100%;
    background: #212121;
    padding-top: 0px;
    padding-bottom: 200px;
    box-sizing: border-box;
}
.content .about_3 .right .text{
    width: 100%;
    height: 100%;
    
    box-sizing: border-box;
    /* padding-left: 90px;
    padding-right: 200px; */

}
.content .about_3 .right .text ul li{
    width: 800px;
    padding-left: 95px;
    padding-top: 50px;
    box-sizing: border-box;
}
.content .about_3 .right .text ul li:nth-child(1){
    padding-top: 53px;
}
.content .about_3 .right .text ul li:nth-child(3){
    /* padding-top: 85px; */
}
.content .about_3 .right .text ul li h4{
    font-size: 22px;
    line-height: 50px;
    color: #fff;
    padding-left: 50px;
    margin-bottom: 5px;
    font-weight: 600;
}
.content .about_3 .right .text ul li h4.h_1{
    background: url(../images/about_icon_1.png) no-repeat left center;
}
.content .about_3 .right .text ul li h4.h_2{
    background: url(../images/about_icon_2.png) no-repeat left center;
}
.content .about_3 .right .text ul li h4.h_3{
    background: url(../images/about_icon_3.png) no-repeat left center;
}

.content .about_3 .right .text ul li p{
    font-size: 16px;
    line-height: 30px;
    color: #fff;
    text-align: justify;
}
.content .about_3 .list{
    width: 100%;
    height: 120px;
    background: rgb(0, 0, 0,0.5);
    position: absolute;
    bottom: 0;
}
.content .about_3 .list .list_1{
    float: left;
    width: 50%;
}
.content .about_3 .list .list_2{
    float: right;
    width: 50%;
}
.content .about_3 .list ul li{
    float: left;
    width: 30%;
    line-height: 120px;
    text-align: center;
}
.content .about_3 .list ul li a{
    color: #fff;
    font-size: 18px;
}
.content .about_3 .list ul li a:hover{
    color: #b9a76e;
}
.content .about_3 .list .list_2 ul li:first-child{
    margin-left: 10%;
}

/* 1600px样式 */
@media screen and (max-width: 1600px) {
    .content .about_2 .right{
        width: 40%;
    }
    .content .about_3 .left{
        background: url(../images/about_3.png) no-repeat right;
    }
    .content .about_3 .left .text{
        width: 600px;
        line-height: 620px;
        padding-left: 125px;
    }
    .content .about_3 .right .text ul li{
        width: 600px;
        padding-left: 80px;
    }
    .content .about_3 .right .text ul li:nth-child(1){
        padding-top: 0px;
    }
}
/* 1366px样式 */
@media screen and (max-width: 1450px) {
    .content .about_1 .top .text h1{
        font-size: 32px;
        margin-left: 30px;
    }
    .content .about_1 .img{
        width: 60%;
    }
    .content .about_1 .bottom{
        height: 224px;
    }
    .content .about_1 .bottom .text{
        width: 720px;
        height: 210px;
        padding: 20px 30px 0px 30px;
    }
    .content .about_1 .bottom .text p{
        padding-bottom: 20px;
        text-align: justify;
        line-height: 25px;
    }
    .content .about_1 .bottom .text ul li{
        height: 100px;
        text-align: center;
    }
    .content .about_1 .bottom .text ul li h2{
        font-size: 22px;
        height: 40px;
        line-height: 40px;
        padding-bottom: 10px;
    }
    .content .about_1 .bottom .text ul li h2 b{
        font-size: 36px;
    }
    .content .about_1 .bottom .text ul li span{
        font-size: 22px;
    }
    .content .about_1 .bottom .text ul li:nth-child(1){
        margin-right: 30px;
    }
    .content .about_1 .bottom .text ul li:nth-child(2){
        margin-right: 30px;
    }
    .content .about_1 .bottom .text ul li:nth-child(3){
        margin-right: 30px;
    }
    .content .about_2{
        padding-bottom: 0px;
    }
    .content .about_2 .left .text{
        padding: 40px 75px 50px 30px;
    }
    .content .about_2 .left h1{
        font-size: 32px;
    }
    .content .about_2 .left p{
        margin-bottom: 20px;
        line-height: 25px;
    }
    .content .about_3{
        height: 700px;
    }
    .content .about_3 .left{
        background: url(../images/about_3.png) no-repeat center;
        background-size: 120%;
    }
    
    .content .about_3 .right{
        padding-top: 30px;
        padding-bottom: 100px;
    }
    .content .about_3 .right .text ul li{
        width: 580px;
        padding-top: 10px;
        padding-left: 50px;
    }
    .content .about_3 .right .text ul li h4{
        font-size: 20px;
    }
    .content .about_3 .right .text ul li p{
        font-size: 14px;
        line-height: 23px;
    }
    .content .about_3 .list{
        height: 50px;
    }
    .content .about_3 .list ul li{
        line-height: 50px;
    }
    .content .about_3 .list ul li a{
        font-size: 16px;
    }
}
@media screen and (max-width: 1366px) {
    .content .about_1 .bottom{
        height: 201px;
    }
}
/* 1080px样式 */
@media screen and (max-width: 1080px) {
    .content .about_1 .banner{
        height: 110px;
    }
    .content .about_1 .top{
        height: 150px;
        line-height: 150px;
    }
    .content .about_1 .top .text h1{
        margin-left: 30px;
    }
    .content .about_1 .top .text h1 i{
        height: 150px;
        line-height: 150px;
    }
    .content .about_1 .img{
        width: 60%;
    }
    .content .about_1 .bottom{
        height: 207px;
    }
    .content .about_1 .bottom .text{
        width: 680px;
        height: 185px;
        padding: 10px 30px 0px 30px;
        top: -30px;
    }
    .content .about_1 .bottom .text p{
        padding-bottom: 0px;
    }
    .content .about_1 .bottom .text ul li:nth-child(1){
        margin-right: 30px;
    }
    .content .about_1 .bottom .text ul li:nth-child(2){
        margin-right: 30px;
    }
    .content .about_1 .bottom .text ul li:nth-child(3){
        margin-right: 30px;
    }
    .content .about_1 .bottom .text ul li h2{
        font-size: 26px;
        padding-bottom: 0px;
    }
    .content .about_1 .bottom .text ul li h2 b{
        font-size: 30px;
    }
    .content .about_1 .bottom .text ul li span{
        font-size: 20px;
    }

    .content .about_2{
        height: auto;
        padding-top: 20px;
        padding-bottom: 50px;
    }
    .content .about_2 .left{
        width: 100%;
    }
    .content .about_2 .left .text{
        padding: 20px 30px 20px 30px;
    }
    .content .about_2 .left h1{
        text-align: center;
    }
    .content .about_2 .left p{
        line-height: 25px;
    }
    .content .about_2 .right{
        width: 100%;
    }

    .content .about_3{
        height: 783px;
    }
    .content .about_3 .left{
        width: 100%;
        background: url(../images/about_3.png) no-repeat right;
        padding-bottom: 60px;
        padding-top: 60px;
        background-size: 100%;
    }
    .content .about_3 .left .text{
        width: 95%;
        padding-left: 260px;
        font-size: 36px;
        line-height: 533px;
    }
    .content .about_3 .list{
        bottom: -580px;
        height: 60px;
    }
    .content .about_3 .list ul li{
        line-height: 30px;
    }
    .content .about_3 .right{
        width: 100%;
        padding-bottom: 100px;
        padding-top: 30px;
        height: auto;
    }
    .content .about_3 .right .text ul li{
        width: 90%;
        margin: auto;
        padding-left: 0px;
        padding-top: 20px;
    }
}
@media screen and (max-width: 850px) {
    .content .about_3 .list{
        bottom: -625px;
    }
}
/* 768px样式 */
@media screen and (max-width: 768px) {
    .content .about_1 .banner{
        display: none;
    }
    .content .about_1 .top{
        background: #eee;
    }
    .content .about_1 .top .text h1{
        margin-left: 0px;
        text-align: center;
    }
    .content .about_1 .img{
        width: 100%;
        top: 150px;
    }
    .content .about_1 .bottom{
        height: 800px;
    }
    .content .about_1 .bottom .text{
        top: 600px;
    }

    .content .about_2{
        height: auto;
        padding-top: 20px;
        padding-bottom: 50px;
    }
    .content .about_2 .left{
        width: 100%;
    }
    .content .about_2 .left .text{
        padding: 20px 30px 20px 30px;
    }
    .content .about_2 .left h1{
        text-align: center;
    }
    .content .about_2 .left p{
        line-height: 25px;
    }
    .content .about_2 .right{
        width: 100%;
    }

    .content .about_3{
        height: 783px;
    }
    .content .about_3 .left{
        width: 100%;
        background: url(../images/about_3.png) no-repeat right;
        padding-bottom: 60px;
        padding-top: 60px;
    }
    .content .about_3 .left .text{
        width: 95%;
        padding-left: 260px;
        font-size: 36px;
        line-height: 533px;
    }
    .content .about_3 .list{
        bottom: -648px;
        height: 60px;
    }
    .content .about_3 .right{
        width: 100%;
        padding-bottom: 100px;
        padding-top: 30px;
        height: auto;
    }
    .content .about_3 .right .text ul li{
        width: 90%;
        margin: auto;
        padding-left: 0px;
        padding-top: 20px;
    }

}
/* 600px样式 */
@media screen and (max-width: 600px) {
    .content .about_1 .top{
        height: 80px;
        line-height: 80px;
    }
    .content .about_1 .top .text h1{
        font-size: 24px;
    }
    .content .about_1 .top .text h1 i{
        height: 80px;
        line-height: 80px;
    }
    .content .about_1 .img{
        top: 80px;
    }
    .content .about_1 .bottom{
        height: 640px;
    }
    .content .about_1 .bottom .text{
        width: 100%;
        height: 300px;
        padding: 10px;
        top: 300px;
    }
    .content .about_1 .bottom .text p{
        font-size: 14px;
        line-height: 22px;
    }
    .content .about_1 .bottom .text ul li{
        width: 50%;
        height: 80px;
        float: left;
    }
    .content .about_1 .bottom .text ul li:nth-child(1){
        margin-right: 0;
    }
    .content .about_1 .bottom .text ul li:nth-child(2){
        margin-right: 0;
    }
    .content .about_1 .bottom .text ul li:nth-child(3){
        margin-right: 0;
    }
    .content .about_1 .bottom .text ul li h2{
        font-size: 16px;
        height: 40px;
        line-height: 40px;
    }
    .content .about_1 .bottom .text ul li h2 b{
        font-size: 26px;

    }
    .content .about_1 .bottom .text ul li span{
        font-size: 16px;
    }

    .content .about_2{
        height: auto;
        padding-top: 10px;
        padding-bottom: 30px;
    }
    .content .about_2 .left{
        width: 100%;
    }
    .content .about_2 .left .text{
        padding: 20px 0px;
    }
    .content .about_2 .left h1{
        font-size: 24px;
    }
    .content .about_2 .left p{
        font-size: 14px;
        line-height: 22px;
    }
    .content .about_2 .right{
        width: 100%;
    }

    .content .about_3{
        height: 350px;
    }
    .content .about_3 .left{
        width: 100%;
        background: url(../images/about_3.png) no-repeat right;
        background-size: 100%;
        padding-bottom: 30px;
        padding-top: 30px;
    }
    .content .about_3 .left .text{
        width: 95%;
        padding-left: 165px;
        font-size: 18px;
        line-height: 235px;
    }
    .content .about_3 .list{
        bottom: -1003px;
        height: 100px;
    }
    .content .about_3 .list ul li{
        line-height: 20px;
    }
    .content .about_3 .list .list_1{
        width: 100%;
        height: 50px;
    }
    .content .about_3 .list .list_2{
        width: 100%;
        height: 50px;
    }
    .content .about_3 .list .list_2 ul li:first-child{
        margin: 0;
    }
    .content .about_3 .right{
        width: 100%;
        padding-bottom: 120px;
        padding-top: 30px;
        height: auto;
    }
    .content .about_3 .right .text ul li{
        width: 90%;
        margin: auto;
        padding-left: 0px;
        padding-top: 20px;
    }
    .content .about_3 .right .text ul li h4{
        font-size: 20px;
    }
    

}