/* 通用配置 */
*{padding:0;margin:0;box-sizing: border-box;text-decoration: none;list-style: none;}
.flex{display: flex;}
.bet{justify-content: space-between;}
.container{width:100%;max-width: 1400px;margin:0 auto;padding:0 10px;}
.one_row{overflow: hidden;text-overflow: ellipsis;white-space: nowrap;}
.background{background-color: #d7d7d7;}
.empty_img{margin:0 auto;width:100%;height:100%;max-width: 500px;}
.empty_img img{width:100%;height:100%;object-fit: contain;}
em.loading {display: inline-block;animation: refresh 1s linear infinite;}
@keyframes refresh {from {transform: rotate(0deg);} to {transform: rotate(360deg);} }
:root{--mainColor:#016e4e}

body{position: relative;}

/* 首页背景图 */
div.backgroundImage img{
    position: absolute;
    top: 0;
    left:0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
div.backgroundImage{
    position: relative;
}
div.backgroundImage .mask::before,div.backgroundImage .mask::after{
    position: absolute;
    content:"";
    width: 0;
    height: 0;
    display: block;
    bottom:0;
    z-index: 2;
}

div.backgroundImage .mask{
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    background-color: rgba(0,0,0,0.55);
    z-index: 1;
}
/* 页头 */
header{
    height: 100px;
    background-color: rgba(0, 0, 0, 0.3);
    position: absolute;
    top: 0px;
    width: 100%;
    z-index: 10;
    border-bottom: 1px solid #333;
}
header .container{
    height:100%;
    position: relative;
}
header .container .logo_container{
   max-width: 215px;
   padding:10px;
}
header .container .logo_container a.img img{
    height: 100%;
    width: 100%;
    object-fit: contain;
}
header .container .login_container{
    height: 100%;
    margin-left: auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
header .container .login_container .img{
    display: block;
    background-color: honeydew;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    overflow: hidden;
    margin-bottom: 5px;
}
header .container .login_container img{
    width: 100%;
    height: 100%;
    object-fit: contain;
}
header .container .login_container .user_name{
    font-size: 14px;
    color:#fff;
}
header .container .login_container a:hover .user_name{
    color:#ddd
}
header .container .login_container a:hover img{
    opacity: 0.8;
}
header .container .login_container  .login{
    color:#fff;
}
header .container .login_container  .login:hover{
    color:#ddd;
}
header .container h2.title{
    color:#fff;
    font-size: 28px;
    line-height: 100px;
    padding-left: 20px;
    max-width: 60%;
    position: relative;
}
header .container h2.title::before{
    position: absolute;
    content: "";
    display: block;
    width: 1px;
    height: 30px;
    background-color: #fff;
    left: 5px;
    top: 50%;
    margin-top: -15px;
}
header .container .toIndex{
    height: 100%;
    margin-left: 50px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
header .container .toIndex .img{
    display: block;
    width: 35px;
    height: 35px;
    margin-bottom: 5px;
    background-image: url(/static/images/knowledge/back.png);
}
header .container .toIndex .img:hover{
    opacity: 0.8;
}
header .container .toIndex a{
    color:#fff;
}
header .container .toIndex a:hover{
    color:#ddd;
}
header .container .toIndex a i{
    font-size: 12px;
}
/* 页身 */
.main{
    position: relative;
}
.main .vidoeList_area .content_box,.main .course_area .content_box .course,.main .course_area .content_box .attachment,.main .point .content_box{
    display: flex;
    justify-content:center;
    width:100%;
    flex-flow: wrap;
}

/* banner区域 */
.main .banner{
    padding-top: 137px;
    height:500px;
}
/* 新闻资讯 */
.main .news_area{
    width:100%;
    padding:60px 0;
    background-color: #f7faf7;
}
.main .news_area .container{
    flex-wrap: wrap;
}
/* 屏幕宽大于700px样式 */
@media screen and (min-width:700px){
    /* 统计区域 */
    .count_area{
        width: 100%;
        z-index: 10;
        position: absolute;
        top:250px;
    }
    .count_area h2{
        font-size: 40px;
        color:#fff;
        margin-bottom: 60px;
    }
    .count_area .info{
        display: flex;
        padding:20px 0;
        margin-bottom: 50px;
    }
    .count_area a.backIndex{
        display: block;
        width: 120px;
        height: 40px;
        background-color:var(--mainColor);
        border-radius: 4px;
        color:#fff;
        text-align: center;
        line-height: 40px;
        transition: all 0.5s;
    }
    .count_area a.backIndex:hover{
        color:var(--mainColor);
        background-color: #fff;
        border:1px solid var(--mainColor)
    }
    .count_area .info li{
        width: 60px;
        margin-right: 50px;
        text-align: center;
        position: relative;
    }
    .count_area .info li:not(:last-child)::before{
        position: absolute;
        content:"";
        display: block;
        width: 1px;
        height:13px;
        right:-25px;
        bottom: 3px;
        background-color: #fff;
    }
    .count_area .info li .count{
        font-size: 20px;
        color:#fff;
    }
    .count_area .info li .name{
        display: block;
        font-size: 14px;
        color:#fff
    }
    body>div.backgroundImage{
        width: 100%;
        min-height: 900px;
    }
    div.backgroundImage .mask::before{
        left:0;
        border-left: 50vh solid #fff;
        border-bottom:140px solid #fff;
        border-top:140px solid transparent;
        border-right: 50vh solid transparent;
    }
    div.backgroundImage .mask::after{
        right: 0;
        border-left: 50vh solid transparent;
        border-bottom:140px solid #fff;
        border-top:140px solid transparent;
        border-right: 50vh solid #fff;
    }
    .main .news_area .container>div{
        width:49%;
    }
    .main .vidoeList_area .content_box .item{
        width:24%;
        height:180px;
    }
    .main .vidoeList_area .content_box .item .playVideo{
        width:40px;
        height: 40px;
        line-height: 40px;
        margin-top: -20px;
        margin-left:-20px;
        padding-left:2px;
    }
    .main .course_area .content_box .item{
        width:30%;
        max-width: 320px;
        height:220px;
        margin:0 20px;
    }
    .main .course_area .content_box .item a.img{
        height:180px;
        background-color: #ddd;;
    }
    .main .point .content_box .item{
        width:30%;
    }
    #footer_container .copyright .support{
        margin-left: 50px;
    }
    .main .vidoeList_area .content_box .package{
        display: flex;
        justify-content: space-between;
    }
    .main .course_area .content_box .course .package{
        display: flex;
        justify-content: center;
    }
    .main .course_area .content_box .attachment .package{
        display: flex;
        justify-content: center;
        flex-wrap: wrap;
    }
}

/* 屏幕宽小于700px样式 */
@media screen and (max-width:700px){
    /* 统计区域 */
    .count_area{
        padding: 20px;
        box-shadow: 0px 0px 8px 0px rgba(0, 0, 0, 0.28);
        /* background-color: #ddd; */
        width: 95%;
        margin: 10px auto;
        border-radius: 10px;
    }
    .count_area h2{
        font-size: 26px;
        color:#333;
        margin-bottom: 20px;
    }
    .count_area .info{
        display: flex;
        padding:20px 0;
        margin-bottom: 20px;
        flex-wrap: wrap;
    }
    .count_area a.backIndex{
        display: block;
        width: 120px;
        height: 40px;
        background-color:var(--mainColor);
        border-radius: 4px;
        color:#fff;
        text-align: center;
        line-height: 40px;
        transition: all 0.5s;
    }
    .count_area a.backIndex:hover{
        color:var(--mainColor);
        background-color: #fff;
        border:1px solid var(--mainColor)
    }
    .count_area .info li{
        width: 30%;
        margin-right: 2%;
        text-align: center;
        position: relative;
    }
    .count_area .info li:not(:nth-child(3n+3))::before{
        position: absolute;
        content:"";
        display: block;
        width: 1px;
        height:13px;
        right:-1%;
        bottom: 3px;
        background-color: #333;
    }
    .count_area .info li .count{
        font-size: 20px;
        color:#333;
    }
    .count_area .info li .name{
        display: block;
        font-size: 14px;
        color:#333
    }
    body>div.backgroundImage{
        width: 100%;
        min-height: 400px;
    }
    div.backgroundImage .mask::before{
        left:0;
        border-left: 50vh solid #fff;
        border-bottom:10px solid #fff;
        border-top:140px solid transparent;
        border-right: 50vh solid transparent;
    }
    div.backgroundImage .mask::after{
        right: 0;
        border-left: 50vh solid transparent;
        border-bottom:10px solid #fff;
        border-top:140px solid transparent;
        border-right: 50vh solid #fff;
    }
    .main .news_area .container>div{
        width: 90%;
        margin: 0 auto;
        float: unset !important;
    }
    .main .news_area .container>div.news{
        margin-bottom:30px;
    }
    .main .vidoeList_area .content_box .item{
        width:94%;
        margin:0 auto;
    }
    .main .vidoeList_area .content_box .item .playVideo{
        width:60px;
        height: 60px;
        line-height: 60px;
        margin-top: -30px;
        margin-left:-30px;
        padding-left:5px;
    }
    .main .vidoeList_area .content_box  .item .playVideo em{
        font-size: 24px;
    }
    .main .course_area .content_box .course .item{
        width:90%;
        height:400px;
        margin-bottom: 20px;
        margin:0 auto 20px auto;
    }
    .main .course_area .content_box .course .item a.img{
        height:360px;
        background-color: #ddd;;
    }
    .main .point .content_box .item{
        width: 90%;
        margin: 0 auto;
    }
    #footer_container .copyright{
        display: block !important;
    }
    #footer_container .copyright .support{
        margin-top: 10px;
    }
    #course{
        height: 1280px !important;
    }
    #video{
        height: 1500px !important;
    }
    #attachment{
        width: 94% !important;
        height: 260px !important;
    }
    .main .course_area .container>div{
        width: 100%;
    }
    .main .course_area .container>.left_box{
        margin-bottom: 80px;
    }
    .main .course_area .content_box .attachment .package{
        display: flex;
        justify-content: space-between;
        flex-wrap: wrap;
    }
    .main .course_area .content_box .attachment .item{
        width: 48%;
    }
}



/* 相关课程 & 资料附件 */
.main .course_area .content_box .course .item{
    background-color: #ffffff80;
    box-shadow: 0px 0px 8px 0px rgba(0, 0, 0, 0.28);
    border-radius: 5px;
    overflow: hidden;
}
.main .course_area .content_box .course .item a.img{
    display: block;
    width:100%;
    overflow: hidden;
}
.main .course_area .content_box .course .item a.img img{
    width:100%;
    height:100%;
    object-fit: cover;
    transition: all 0.5s;
}
.main .course_area .content_box .course .item a.img:hover img{
    opacity: 0.8;
    transform: scale(1.2);
}
.main .course_area .content_box .course .item h4{
    width:100%;
    height:40px;
    text-align: center;
    font-size: 16px;
    color:#333;
    line-height: 40px;
}
.main .course_area{
    padding:80px 0 40px 0;
    background-color: #faf7f9;
}
.main .course_area .content_box .attachment{
    margin-top: 40px;
}
.main .course_area .content_box .attachment .item{
    height: 60px;
    display: flex;
    border-bottom:1px solid #ddd;
    margin-bottom: 21px;
}
.main .course_area .content_box .attachment .item em{
    font-size: 38px;
    transition: all 0.5s;
}
.main .course_area .content_box .attachment .item:hover em{
    font-size: 50px;
    opacity: 0.8;
}
.main .course_area .content_box .attachment .item h4{
    max-width: 90%;
    font-size: 14px;
    color: #333;
    height: 38px;
    text-align: right;
    margin-left: 20px;
    line-height: 58px;
}









/* 课程视频区域 */
.main .vidoeList_area{
    padding:30px 0 40px 0;
}
.main .vidoeList_area .content_box .item{
    margin-bottom: 20px;
    position: relative;
}
.main .vidoeList_area .content_box .item .playVideo{
    display: block;
    border-radius: 50%;
    position: absolute;
    text-align: center;
    background-color:rgba(255, 255, 255, 0.2);
    border:1px solid #fff;
    color:#fff;
    top:50%;
    left:50%;
    z-index: 10;
}
.main .vidoeList_area .content_box .item .playVideo:hover{
    color:#999;
    background-color:rgba(255, 255, 255, 0.5);
}
.main .vidoeList_area .content_box .item video{
    width: 100%;
    height: 100%;
    object-fit: contain;
}



/* 知识点区域
 */
#point_page{ /* 知识点分页 */
    text-align: center;
}
#point_page a:hover{
    color:#999;
}
.main .point{
    padding:80px 0 40px 0;
}
.main .point .content_box .package{
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
.main .point .content_box .item{
    padding-bottom: 15px;
    background-color:#fff;
    position: relative;
    margin-bottom: 20px;
    border-bottom:1px dashed #ddd;
}
.main .point .content_box .item h4{
    width:100%;
    margin-bottom: 16px;
}
.main .point .content_box .item h4 a{
    font-size: 16px;
    color:#333;
}
.main .point .content_box .item h4 a:hover{
    color:#666;
}
.main .point .content_box .item p{
    font-size: 14px;
    color:#999;
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    -ms-text-overflow: ellipsis;
    text-overflow: ellipsis;
}
/* 新闻区域 */
.main .news_area .container>div{
   overflow: hidden;
}
.main .news_area .container>div .title,h4.title{
    width:100%;
    margin-bottom: 40px;
    padding-bottom: 30px;
    position: relative;
}
.main .news_area .container>div .title .zh_name,h4.title .zh_name{
    font-size: 40px;
    z-index: 2;
    position: relative;
}
.main .news_area .container>div .title .en_name,h4.title .en_name{
    font-size: 50px;
    color:#edecec;
    position: absolute;
    z-index: 1;
    top:16px;
    left:47px;

}
.main .news_area .container>div .content_box{
    width:100%;
    height:250px;
    overflow: hidden;
}
.main .news_area .container>div .content_box .item{
    line-height:22px;
    margin-bottom: 25px;
}
.main .news_area .container>div .content_box .item .date{
    font-size: 16px;
    color:#999;
    margin-left: auto;
}
.main .news_area .container>div .content_box .item .content h2{
   font-size: 16px;
   color:#333;
   max-width: 80%;
   padding-left:30px;
   position: relative;
}
.main .news_area .container>div .content_box .item .content h2::before{
    content:"";
    display: block;
    width: 10px;
    height: 10px;
    border:1px solid #999;
    transform: rotate(45deg);
    position: absolute;
    top:4px;
    left:4px;
}




/* 页脚 */
#footer_container {
    height: 185px;
    background-color:var(--mainColor);
}
#footer_container .link_nav a:hover {
    color: #ddd; 
}
#footer_container .content {
    max-width: 1200px;
    height: 185px;
    margin:0 auto;
    padding:30px 10px 0 10px;
}
#footer_container .content h4{
    font-size: 20px;
    color:#fff;
}
#footer_container .link_nav{
    margin-top: 20px;
}
#footer_container .link_nav li{
    padding-right: 20px;
    position: relative;
    height:19px;
    line-height: 19px;
}
#footer_container .link_nav li:not(:last-child)::before{
    content:"";
    display: block;
    width: 1px;
    height: 15px;
    background-color: #fff;
    right: 10px;
    top:2px;
    position: absolute;
}
#footer_container .link_nav li a{
    color: #fff;
    font-size: 14px; 
}
#footer_container .copyright {
    color: #fff;
    font-size: 14px;
    margin-top: 30px;
}
#footer_container .copyright .support a{
    color:#fff;
}
#footer_container .copyright .support a:hover{
    color:#ddd;
}

   

    .layui-carousel{
        background-color: unset !important;
    }
    .layui-carousel>[carousel-item]>*{
        background-color: unset !important;
    }
    .layui-carousel-ind{
        top:-20px !important;
    }
    .layui-carousel-ind ul:hover,.layui-carousel-ind ul{
        background-color: unset !important;
    }
    .layui-carousel-ind li.layui-this{
        background-color: var(--mainColor) !important;
    }
    .layui-carousel-ind li{
        background-color: #bbb !important;
    }
    .layui-carousel-ind li:hover{
        background-color: #e2e2e2 !important;
    }
    .layui-carousel>[carousel-item]:before{
        content:"" !important;
    }