.about_main{
    width: 100%;
    text-align: center;
}
.about_tuwen{
    background: #1a1a1a;
}
.about_main .about_title{
    width: 100%;
    display: inline-block;
    color: #fff;
    padding: 20px 0;
    padding-top: 40px;
}
.about_main h3{
    font-size: 32px;

}
.about_main p{
    font-size: 18px;
}
.about_tumian{
    width: 100%;
    max-width: 1600px;
    min-width: 1208px;
    margin: 40px auto;
    display: inline-block;
}
.about_tumian .tu{
    width: 50%;
    float: left;
    display: inline-block;
    position: relative;
}
.about_tumian .tu img{
    width: 100%;
    float: left;
    display: inline-block;
}
.about_tumian .tu video{
    width: 100%;
    float: left;
    display: inline-block;
}
.about_tumian .tuzi {
    width: 50%;
    float: left;
    color: #fff;
    padding: 3% 4%;
    box-sizing: border-box;

    display: inline-block;
}
.about_tumian .tuzi h3{
    line-height: 60px;
}
.about_tumian .tuzi p{
    line-height: 25px;
    font-size: 16px;
    text-align: left;
}
@media screen and (max-width: 1308px) {
    .about_main{
        margin-left: -10px;
    }
    .about_tumian .tuzi {

        padding: 2% 1%;

    }
    .about_tumian .tuzi h3{
        line-height: 55px;

        font-size: 30px;
        text-align: left;
    }
    .about_tumian .tuzi p{
        line-height: 20px;
        font-size: 14px;
        text-align: left;
    }
}

@media screen and (max-width: 1208px) {
    .about_main{
        margin-left: -10px;
    }
    .about_tumian .tuzi {

        padding: 0% 1%;

    }
    .about_tumian .tuzi h3{
        line-height: 20px;
        font-size: 16px;
        text-align: left;
    }
    .about_tumian .tuzi p{
        line-height: 19px;
        font-size: 10.5px;
        text-align: left;
    }
}
.pad10{
    padding: 10px;
}
.about_tuwen  .about_title{
    padding-bottom: 0;
}
.about_tuwen ul li{
    width: 50%;
    position: relative;
    float: left;
    padding: 5px;
    box-sizing: border-box;
}
.about_tuwen ul li img{
    width: 100%;

}
.about_tuwen ul li a{
    width: 100%;
    display: inline-block;
}
.about_tuwen ul li span{
    position: absolute;
    top:20px;
    left: 20px;
    font-size: 28px;
    color: white;
}
.link_hre a{
    margin: 50px;
    display: inline-block;
}
.about_main_w1208{
    width: 1208px;
    margin: 0 auto;
}
.about_di{
    width: 100%;
    display: inline-block;
    background: #1a1a1a;
    border-bottom: 1px solid #454545;
    padding: 60px 0;
}
.about_di .about_title h3{
    font-size: 32px;
    text-align: left;
    line-height: 60px;
    color: #fff;
    display: inline-block;
}
.about_di ul li{
    width: 50%;
    float: left;
    color: #fff;
    text-align: left;
    font-size: 16px;
    margin-top: 20px;
    line-height: 25px;
}
.about_di ul li .f18{
    font-size: 18px;
    line-height: 30px;
}
.about_di ul li .f16{
    font-size: 16px;
    color: #999;
    line-height: 30px;
}