* {
    font-family: SourceHanSansCN, sans-serif;
}

/*公共头部导航---结束---*/
body {
    padding-top: 75px;
}

header {
    width: 100%;
    background: #fff;
    height: 75px;
    line-height: 75px;
    box-shadow: 0px 2px 12px 0px rgba(0,0,0,0.07);
    position: fixed;
    top: 0;
    z-index: 999;
}

header .main {
    width: 1200px;
    margin: 0 auto;
}

header .main .left {
    float: left;
}

header .main .left img {
    height: 36px;
}

header .main .right {
    float: right;
}

header .main .right a {
    font-size: 16px;
    color: #000;
    font-weight: 400;
    margin-right: 120px;
}

header .main .right a:hover {
    color: #2050D1;
    font-weight: 500;
}

header .main .right a:last-child {
    margin-right: 0;
}

header .main .right a.active {
    color: #2050D1;
    font-weight: 500;
}
/*公共头部导航---结束---*/

.banner {
    width: 100%;
    min-width: 1200px;
    height: 400px;
    background: url(https://www.f139content.com/website/sci99/images/about/culture/banner.png) top center no-repeat;
}

.div_main {
    background: #fff;
    width: 1200px;
    min-height: 500px;
    margin: 0 auto;
    padding: 70px 0 80px 0;
}

.clearfix:after {
    visibility: hidden;
    display: block;
    font-size: 0;
    content: " ";
    clear: both;
    height: 0;
}

h2 {
    position: relative;
}

h2 span {
    font: 700 38px / 50px "SourceHanSansCN, sans-serif";
    color: #000;
    position: relative;
    z-index: 99;
}

h2 i {
    font: 600 50px / 60px arial;
    color: #F2F2F2;
    position: absolute;
    left: 0;
    top: -10px;
    z-index: 88;
}

.div_main section {
    margin-bottom: 70px;
}

.div_main section:last-child {
    margin-bottom: 0;
}

/* 企业文化部分 */
.culture-content {
    margin-top: 38px;
}

.left-menu {
    float: left;
    width: 190px;
    background-color: #F8F8F8;
    margin-right: 26px;
    border-radius: 8px;
    overflow: hidden;
}

.right-content {
    float: right;
    width: 982px;
    height: 342px;
    border-radius: 8px;
    overflow: hidden;
}

.right-content img {
    width: 100%;
    height: 100%;
}

.menu-item {
    height: 57px;
    line-height: 57px;
    text-align: center;
    background: #F8F8F8;
    cursor: pointer;
    font-size: 16px;
    color: #000;
    font-weight: 600;
}

.menu-item:hover {
    background-color: #2050D1;
    color: #fff;
}

.menu-item.active {
    background-color: #2050D1;
    color: #fff;
}

.content-section {
    display: none;
    min-height: 300px;
}

.content-section.active {
    display: block;
}

/*企业价值观部分*/
.values-content {
    margin-top: 32px;
}

.values-content > div {
    width: 382px;
    height: 230px;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    margin: 0 26px 26px 0;
    float: left;
}

.values-content > div:nth-child(3n) {
    margin-right: 0;
}

.values-content > div:nth-child(4), div:nth-child(5), div:nth-child(6) {
    margin-bottom: 0;
}

.values-content > div img {
    width: 100%;
    height: 100%;
}

.values-content > div span {
    font-weight: bold;
    font-size: 24px;
    color: #FFFFFF;
    line-height: 36px;
    position: absolute;
    left: 143px;
    bottom: 32px;
}