.clearfix:after {
    content: "\200B";
    display: block;
    height: 0;
    clear: both;
}

.clearfix {
    *zoom: 1;
}

.fl {
    float: left
}

.fr {
    float: right
}

h1, h2, h3, h4, h5, h6, strong {
    font-weight: normal;
}

.bg-gray {
    background-color: #313435;
}

.bg-white {
    background-color: #fff;
}

.banner {
    max-width: 1920px;
    height: 680px;
    background: url(../img/img/img/banner_a.jpg) 50% 50%;
}

.middle {
    width: 1200px;
    margin: 0 auto;
}

.banner-txt {
    position: relative;
    top: 90px;
}

.banner-txt .txt {
    font-size: 50px;
}

.banner-txt .txt1 {
    padding-top: 210px;
    color: #95c1ff
}

.banner-txt .txt2 {
    color: #ffffff;
}

.content1_next {
    padding-top: 36px;
    padding-bottom: 70px;
}

.content1_next .title {
    height: 114px;
    line-height: 114px;
    text-align: center;
    font-size: 36px;
    color: #282828;
    border-bottom: 1px solid #282828;
}

.content1_center li {
    width: 300px;
    height: 300px;
    float: left;
    padding-top: 54px;
}

.content1_center h2 {
    padding-top: 40px;
    padding-bottom: 20px;
    font-size: 24px;
    color: #1b1b1b;
    text-align: center;
}

.content1_center p {
    font-size: 16px;
    line-height: 28px;
    color: #8c8c8c;
    padding: 0 4%;
}

.oImg {
    display: block;
    width: 100px;
    height: 100px;
    margin: 0 auto;
    border-radius: 50%;
    background: url(../img/img/img/iocn.png);
}

.oImg1 {
    background-position: 0 0;
}

.oImg2 {
    background-position: -105px 0;
}

.oImg3 {
    background-position: -210px 0;
}

.oImg4 {
    background-position: -315px 0;
}

.oImg5 {
    background-position: -420px 0;
}

.oImg6 {
    background-position: -525px 0;
}

.oImg7 {
    background-position: -630px 0;
}

.oImg8 {
    background-position: -735px 0;
}

.content2 {
    height: 492px
}

.content2_next img {
    position: relative;
    top: -54px;
    width: 1200px;
    height: 682px;
}

.content3 {
    height: 500px;
}

.content3_next .title {
    font-size: 36px;
    color: #282828;
    padding-top: 144px;
    text-align: center;
}

.content3_next img {
    display: block;
    width: 1180px;
    height: 72px;
    margin: 0 auto;
    padding-top: 80px;
}

.content3_next li {
    float: left;
    padding-top: 10px;
    width: 200px;
    text-align: center;
}

.content4 {
    max-width: 1920px;
    height: 400px;
    background: url(../img/img/img/banner_c.jpg) 50% 50%;
}

.content4_next img {
    display: block;
    margin: 0 auto;
    width: 1044px;
    height: 217px;
    padding-top: 94px;
}

.content5 {
    height: 428px;
}

.content5_next h2 {
    padding-top: 90px;
    padding-bottom: 60px;
    font-size: 36px;
    color: #282828;
    text-align: center;
}

.content5_next img {
    display: block;
    width: 1076px;
    height: 130px;
    margin: 0 auto;
}

.content5_next li {
    width: 300px;
    float: left;
    padding-top: 16px;
    text-align: center;
    font-size: 18px;
    color: #414141;
}