html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section {
    display: block;
}
body {
    line-height: 1;
}
ol, ul {
    list-style: none;
}
a{
    text-decoration: none;
    color: #2F372F;
}
blockquote, q {
    quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
    content: '';
    content: none;
}
table {
    border-collapse: collapse;
    border-spacing: 0;
}
video:focus{
    outline: 0;
}
body{
    margin: 0;
    color: #2F372F;
    min-width: 1200px;
    font-size: 14px;
    font-family: "微软雅黑", Arial, Verdana, Helvetica, sans-serif;
    background-color: #fff;
}
.container{
    margin: 0 auto;
    width: 1200px;
}
/* 布局 */
.flex{
    display: -webkit-box; 
    display: -moz-box; 
    display: -ms-flexbox; 
    display: -webkit-flex; 
    display: flex; 
    -webkit-flex-wrap: nowrap;
    -ms-flex-wrap: nowrap;
    flex-wrap: nowrap;
}
.flex-column{
    webkit-flex-direction: column;
    -moz-flex-direction: column;
    -ms-flex-direction: column;
    -o-flex-direction: column; 
    flex-direction:column;
}
.flex-wrap{
    flex-wrap: wrap;
}
.flex-1{
    -webkit-box-flex: 1; 
    -moz-box-flex: 1; 
    -webkit-flex: 1; 
    -ms-flex: 1; 
    flex: 1;
}
.align-center {
    -webkit-box-align: center;
    -moz-align-items: center;
    -webkit-align-items: center;
    align-items: center;
}
.align-start {
    -webkit-box-align: flex-start;
    -moz-align-items: flex-start;
    -webkit-align-items: flex-start;
    align-items: flex-start;
}
.align-end {
    -webkit-box-align: flex-end;
    -moz-align-items: flex-end;
    -webkit-align-items: flex-end;
    align-items: flex-end;
}
.space-between {
    -webkit-box-pack: justify;
    -moz-justify-content: space-between;
    -webkit-justify-content: space-between;
    justify-content: space-between;
}
.space-center {
    -webkit-justify-content: center;
  -moz-justify-content: center;
  -ms-justify-content: center;
  -o-justify-content: center;
  justify-content: center;
}
.space-end {
    -webkit-justify-content: flex-end;
    -moz-justify-content: flex-end;
    -ms-justify-content: flex-end;
    -o-justify-content: flex-end;
    justify-content: flex-end;
}
.space-around{
    justify-content: space-around;
}
.space-start{
    -webkit-justify-content: flex-start;
    -moz-justify-content: flex-start;
    -ms-justify-content: flex-start;
    -o-justify-content: flex-start;
    justify-content: flex-start;
}
.none{
    display: none;
}
.block{
    display: block;
}
/* 字体 */
.font-12{
    font-size: 12px;
}
.font-13{
    font-size: 13px;
}
.font-14{
    font-size: 14px;
}
.font-16{
    font-size: 16px;
}
.font-18{
    font-size: 18px;
}
.font-20{
    font-size: 20px;
}
.font-22{
    font-size: 22px;
}
.color-gray{
    color: rgb(9 9 9 / 50%);
}
.color-green{
    color: #34A589;
}
.color-blue{
    color: #2468F2 !important;
}
.color-black{
    color: #0B0C0C;
}
.color-white{
    color: #FFFFFF !important;
}
.color-red{
    color: #F56C6C !important;
}
.color-yellow{
    color: #F5BA31 !important;
}

/* 间距 */
.mt-5{
    margin-top: 5px;
}
.mt-10{
    margin-top: 10px;
}
.mt-15{
    margin-top: 15px;
}
.mt-20{
    margin-top: 20px;
}
.mt-30{
    margin-top: 30px;
}
.mb-30{
    margin-bottom: 30px;
}
.ml-60{
    margin-left: 60px;
}
.mr-5{
    margin-right: 5px;
}
.mr-10{
    margin-right: 10px;
}
.mr-20{
    margin-right: 20px;
}
.text-center{
    text-align: center;
}
.img{
    display: block;
}
.ellipsis{
    overflow: hidden;
    text-overflow:ellipsis;
    white-space: nowrap;
}

/* 页面头部 */
.header-wrap{
    position: fixed;
    height: 90px;
    width: 100%;
    top: 0;
    z-index: 999;
    background: #ffffff;
}
.header{
    height: 90px;
    position: relative;
    z-index: 9;
}
.header .logo{
    width: 169px;
}
.header .nav-item{
    width: 120px;
    font-size: 16px;
    text-align: center;
    cursor: pointer;
    position: relative;
    height: 80px;
    line-height: 80px;
}
.header .nav-item::after{
    content: "";/*content用来定义插入内容必须有值至少是空*/
    display: block; /*默认情况下伪元素的display的默认值是inline可以通过设置block来改变其显示。*/
    transition: all 400ms ease-in-out 0s;/*有过渡的效果*/
    border-top: 2px solid #2468F2;
    margin: 0 auto;/*从中间向两边扩开*/
    width: 0;
}
.header .nav-item a{
    display: block;
    color:#232323;
}
.header .nav-item.active a{
    color: #2468F2;
}
.header .nav-item:hover::after{
    width: 100%;
}
.header .nav-item:hover>a{
    color:#2468F2;
}
.header .nav-img{
    margin-left: 40px;
}
.header .nav-img img{
    vertical-align: middle;
    width: 34px;
    margin-right: 10px;
}
.header .nav-layout{
    position: absolute;
    top: 90px;
    left: 0;
    width: 120px;
    z-index: 99999;
    padding: 5px 10px 5px 10px;
    background:rgba(255,255,255,0.9);
    text-align: center;
    display: none;
    box-sizing: border-box;
}
.header .nav-layout .nav-sub-item{
    font-size: 15px;
    line-height: 18px;
    margin: 15px 0;
}
.header .nav-layout .nav-sub-item a{
    color:rgb(47 55 47 / 70%);
}
.header .nav-layout .nav-sub-item a:hover{
    color:#3EA836;
}
.header .btn{
    font-size: 16px;
    color: #232323;
}
.header .reg-btn{
    background: #2468F2;
    padding: 8px 18px;
    border-radius: 4px;
    margin-left: 20px;
    color: #fff;
}
.header .avater{
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 10px;
    cursor: pointer;
    vertical-align: middle;
}
.header .name{
    font-size: 14px;
    color: #232323;
    cursor: pointer;
}

/* banner */
.banner{
    width: 100%;
    height: 760px;
}
.banner .img{
    width: 100%;
}
.banner .banner-img{
    width: 100%;
    height: 100%;
}
.banner .banner{
    width: 100%;
}
.banner-inner{
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 9;
    width: 1200px;
    height: 100%;
    padding-top: 90px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    box-sizing: border-box;
}
.banner-inner .title{
    font-size: 50px;
    font-weight: bold;
}
.banner-inner .sub-title{
    max-width: 52%;
    font-size: 24px;
    line-height: 40px;
    margin: 50px 0 120px;
    color: #596178;
}
.banner-inner .btn-warp{
    display: flex;
    align-items: center;
}
.banner-inner .btn-warp .btn{
    display: flex;
    align-items: center;
    background: #2468F2;
    padding: 12px 22px;
    border-radius: 8px;
    font-size: 16px;
    color: #fff;
    margin-right: 32px;
}
.banner-inner .btn-warp .btn:hover{
    opacity: 0.8;
}
.banner-inner .btn-warp .img{
    width: 30px;
    height: 30px;
    display: block;
    margin-right: 12px;
}
@media screen and (max-width: 1600px) {
    .banner-text-box .box-title{
        font-size: 40px;
    }
    .banner-text-box .box-content{
        font-size: 20px;
    }
    .banner-text-box .box-bottom h3{
        font-size: 20px;
    }
}

/* 头部优势 */
.advantage-warp{
    background: #F5FBFF;
    padding: 34px 0;
}
.advantage-inner{
    width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.advantage-warp .item{
    width: 25%;
}
.advantage-warp .img{
    width: 40px;
    height: 40px;
    display: block;
    margin-right: 12px;
}
.advantage-warp .num{
    font-size: 22px;
    font-weight: bold;
    color: #232323;
}
.advantage-warp .txt{
    font-size: 15px;
    color: #37498C;
    margin-top: 16px;
}

/* 标题 */
.box .title{
    text-align: center;
    font-size: 40px;
    font-weight: bold;
    margin-bottom: 26px;
}
.box .title-warp{
    display: flex;
    align-items: center;
    justify-content: center;
}
.box .title-warp .img{
    width: 28px;
    height: 28px;
    display: block;
}
.box .title-warp .title{
    margin: 0;
    font-size: 40px;
    margin: 0 37px;
}
.box .sub-title{
    text-align: center;
    font-size: 20px;
    line-height: 40px;
    color: #596178;
    padding: 0 50px;
}
.box .look-more-wrap{
    text-align: center;
    margin-top: 60px;
}
.box .look-more-txt{
    color: #2F372F;
    font-size: 14px;
    padding-top: 6px;
    border-bottom: 1px solid #2F372F;
}
.box .look-more-wrap img{
    width: 44px;
    margin-left: 10px;
    vertical-align: middle;
}
/* 底部 */
.advantage-wrap{
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 42px 0;
    border-top: 1px solid rgba(112, 112, 112, 0.19);
}
.advantage-wrap .item{
    display: flex;
    align-items: center;
    font-size: 20px;
}