/* 重置样式 reset style  */
* {
    margin: 0;
    padding: 0;
}

body{
    background-color: #fff;
}

ul {
    list-style: none;
}

a {
    color: inherit;
    text-decoration: none;
}

/* 公共样式  common style */
.container {
    max-width: 1200px;
    margin: 0 auto;
    /* 水平居中 */
}

.left{
    float: left;
}

.right{
    float: right;
}

/* 清除浮动 */
.clear{
    clear: both;
}

/* 高度塌陷 */
.clearboth::after {
    content: '';
    clear: both;
    display: block;
    width: 0;
    height: 0;
    overflow: hidden;
}


/* 弹性布局 */
.flexbox {
    display: -webkit-flex;
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: flex;
}

/* 标题文本 */
.column-title{
    margin: 40px 0;
}

/* 主标题 */
.column-title h2{
    text-align: center;
}


/* 副标题  */
.column-title h3{
    padding-left: 10px;
    border-left: 8px solid #0281E8;
    text-align: left;
}

/* 区域文本默认设置 */
.column-text p{
    text-indent: 2em;
    line-height: 30px;
}

/* 区域图片默认修改  */
.column-img{
    overflow: hidden;
}

.column-img img{
    vertical-align: top;
}

/* 当前导航 */
.current-nav{
    color: #fff !important;
    font-size: 20px !important;
    background-color: #09d2fe !important;
    border-bottom: 2px solid #ffee34 !important;
}

/* header  */
#header{
    position: sticky;
    top: 0;
    z-index: 999;
    width: 100%;
    background-color: #fff;
    box-shadow: 0 8px 8px rgba(0, 0, 0, 0.087);
}

/* 顶部 */
.top{
    background-color: #09d2fe;
}

.loginbar li{
    float: right;
    height: 35px;
    font-size: 14px;
    color: #fff;
    line-height: 35px;
}

.loginbar li:first-child{
    float: left;
    font-weight: 900;
    font-size: 20px;
    font-family: 'Times New Roman', Times, serif;
}

.loginbar li:first-child span{
    color: #ffee34;
}

.loginbar li a:hover{
    text-decoration: underline;
}

.loginbar li:first-child a:hover{
    text-decoration: none;
}

/* banner start */
.banner-wrapper {
    height: 520px;
    color: #fff;
    background: url(../images/banner1.jpg) no-repeat center/cover;
}

.child-banner{
    height: 420px;
    background: url(../images/banner1.jpg) no-repeat center/cover;
}
/* 导航区 */
.nav {
    background-color: #fff;
}

.nav li{
    width: 14.2%;
    height: 60px;
    float: left;
    text-align: center;
}

.nav li a {
    display: inline-block;
    width: 100%;
    height: 100%;
    font-size: 18px;
    line-height: 60px;
}

.nav li a:hover {
   text-decoration: underline;
   color: #fff;
   background-color:#09d2fe;
}

/* 底部版权声明 */
.copyright {
    height: 60px;
    font-size: 12px;
    text-align: center;
    line-height: 60px;
    background-color:#09d2fe;
    color: #fff;
}

/* 首页 */
.column-one-content{
    color: #000;
    background-color: #fff;
    
    background-attachment: fixed;
}

.cilumn-one-img img{
    width: 100%;
}

.column-one-text{
    padding: 20px 40px;
}

.column-two{
    height: 250px;
}

.column-two-card{
    width: 15%;
    height: 180px;
    margin-right: 17px;
    text-align: center;
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.153);
    transition: all .3s linear;
}

.column-two-card:last-child{
    margin: 0;
}

.column-two-card h2{
    padding-top: 50px;
    font-size: 42px;
    color: #09d2fe;
    transition: all .3s linear;
}

.column-two-card h3{
    color: #006176;
    margin-bottom: 5px;
}

.column-two-card p{
    display: none;
    padding: 5px;
    color: #fff;
}

/* 卡片鼠标滑动效果 */
.column-two-card:hover{
    height: 200px;
    background-color:#09d2fe;
}

.column-two-card:hover h2{
    padding-top: 5px;
    color: #fff;
}

.column-two-card:hover p{
    display: block;
}

.index-video{
    width: 80%;
    margin-left: 120px;
}

.index-video video{
    vertical-align: top;
}

.column-four-img{
    float: left;
    width: 31%;
    height: 220px;
    margin-right: 4px;
    margin-bottom: 4px;
    overflow: hidden;
}

.column-four-img img{
    width: 100%;
    height: 100%;
    vertical-align: top;
    transition: transform .2s linear;
}

.column-four-img img:hover{
    -moz-transform: scale(1.1);
    -ms-transform: scale(1.1);
    -webkit-transform: scale(1.1);
    -o-transform: scale(1.1);
    transform: scale(1.1);
}


.column-four{
    margin-bottom: 40px;
}