/* 清除默认样式 */
@import "//imgcdn.bangkao.com/src/common/css/reset.1c85b2d2.css";
html,body{
    min-width: 1200px;
}
body{
    padding-top: 60px;
}
.clearfix::after{
    content: '';
    display: block;
    clear:both;
}

.layui-layer-msg {
    min-width: 190px!important;
    border: 1px solid #D3D4D3;
    box-shadow: none;
    height: 58px!important;
}

/* 引入登录 */
.login-area{
    position: fixed;
    width: 100%;
    height:100%;
    z-index: 9999;
    display: none;
    border:none;
}
/* 导航栏 */
header{
    width: 100%;
    height:60px;
    line-height: 60px;
    background-color:#fff;
    /*border-bottom: 1px solid #E0E0E0;*/
    position: fixed;
    z-index: 10;
    left: 0;
    right: 0;
    top: 0;

}
header .nav{
    margin:0 auto;
    width: 1200px;
    position: relative;
    z-index: 9;
    display:flex;
}
header .nav_left{
    flex: 1;
    display: flex;
    align-items: center;
}
header .nav .logo{
    width:160px;
    height: 44px;
    float: left;
    margin:7px 75px 0 0;
    position: relative;

}
.logo_index2{
    margin-right: 16px;
    line-height: 32px;
}
.logo_index2 img{
    /*height: 32px;*/
}
.logo_index{
    margin-right: 50px;
}
.logo_index>img{
    width: 248px;
}
header .nav .nav-menu{
    margin-bottom: 0;
    font-size:0px;
    height: 60px;
}
.fenkai{
    border-left: 1px solid #d2d2d2;
    height: 20px;
    display: inline-block;
    position: absolute;
    top: 12px;
    right: -45px;
    display: none;
}
header .nav .nav-menu li{
    display: inline-block;
    margin-right: 24px;
    cursor: pointer;
    color: #222;
    font-size: 16px;
    /*display: none;*/
}
header .nav .nav-menu li:last-child{
    margin-right: 0px;
}
header .nav .nav-menu li.active a{
    color: #F85C5B;
    border-bottom: 2px solid #F85C5B;
    padding-bottom: 2px;
}

header .nav .choice_course:hover a{
    color: #f00;
}
.index_courseicon{
    width: 12px !important;
    left: auto !important;
}
.index_long{
    width: 1px;
    height: 24px;
    background: rgba(216,216,216,1);
    margin-right: 16px;
}
header .nav .nav-menu li:first-child.select{
    color:#f00;
}
header .nav .nav-menu li:first-child.select a{
    color:#f00;
}
header .nav .nav-menu li:first-child>i,
header .nav .nav-menu li:first-child>span,
.nav-portrait i{
    margin-left:3px;
    display: inline-block;
    vertical-align: middle;
    width:12px;
    height: 12px;
    background:url('../img/xiala.d8d6af26.png') no-repeat center center;
    transition: all 0.3s ease;
    background-size: contain;
}
.nav-portrait i.video_header_icon{
    width: 0px;
    height: 0px;
    border: 5px solid #ffffff;
    border-color: #ffffff transparent transparent transparent;
}
.nav .nav-portrait:hover>i.video_header_icon{
    width: 0px;
    height: 0px;
    border: 5px solid #ffffff;
    background: none;
    border-color: #ffffff transparent transparent transparent;
}
header .nav .nav-menu li:first-child.select>i{
    transform: rotate(180deg);
}
header .nav .nav-menu li:first-child.select>span,
header .nav .nav-menu li:first-child .sub-menu{
    display: none;
    box-sizing: border-box;
    padding-top: 15px;
    width: 65%;
    height: 300px;
    min-width: 1200px;
    position: absolute;
    left: 0;
    top:70px;
    border-top:1px solid #ddd;
    background-color:#fff;
    box-shadow: 0px 3px 10px 0px #ddd;
    z-index: -2;
}
header .nav .nav-menu li:first-child .sub-menu .sub-subject dd,
header .nav .nav-menu li:first-child .sub-menu .sub-subject dt{
    float: left;
}
header .nav .nav-menu li:first-child .sub-menu .sub-subject{
    margin:30px;
    line-height: 0.5em;
}
header .nav .nav-menu li:first-child .sub-menu .sub-subject dt{
    color:#000;
    font-weight: 600;
    padding:10px;

}
header .nav .nav-menu li:first-child .sub-menu .sub-subject dt::after{
    content: '';
    display: inline-block;
    border:5px solid transparent;
    border-left-color:#999;
    margin-left: 5px;
}
header .nav .nav-menu li:first-child .sub-menu .sub-subject dd{
    padding:10px;
    border:1px solid transparent;

}
header .nav .nav-menu li:first-child .sub-menu .sub-subject dd:hover{
    background-color:rgb(254, 238, 238);
    border:1px solid rgb(255, 128, 127);
    border-radius: 20px;
}

header .nav .nav-menu li:not(first-child).sub-select a {
    color: rgb(249, 99, 98);
}
header .nav .nav-menu li a:hover{
    color:#f00;
}
header .nav .nav-menu li a{
    font-size: 14px;
    color:#222;
}
header .nav .nav-menu li .red_top_color{
    color: #F85D5C;
}
.header_phone{
    width: 16px;
    margin-right: 3px;
    display: inline-block;
    vertical-align: middle;
    margin-top: -3px;
}
header .nav .nav-menu .phone_num a{
    color: #999;
}
header .login-wrap{
    font-size: 14px;
    color: #999999;
    float: right;
}
header .login-wrap>a{
    color: #999;
}
header .login-wrap .stydu-center-btn{
    margin-right:60px;
}
header .login-wrap a:hover{
    color: #f00;

}
header .login-wrap a.study-center-btn{
    margin-right: 40px;
}
header .login-wrap span{
    display: inline-block;
    width: 1px;
    height: 14px;
    vertical-align: middle;
    margin:-2px 5px 0px;
    background-color:#999
;
}
/* 侧边栏 */
.information{
    width:50px;
    position: fixed;
    background-color:rgba(254,254,254,.9);
    box-shadow:0px 2px 4px 0px rgba(0,0,0,0.16),0px 0px 2px 0px rgba(0,0,0,0.08);
    border-top-left-radius: 6px;
    border-bottom-left-radius: 6px;
    /*top:254px;*/
    right:0px;
    bottom: 5%;
    z-index: 999;
}
.information ul{
    border-top-left-radius: 6px;
    border-bottom-left-radius: 6px;
}
.information ul li i{
    width: 17px;
    height: 1px;
    background: rgba(238,238,238,1);
    position: absolute;
    /* background: red; */
    top: 57px;
}
.information .aside>li{
    height: 60px;
    position: relative;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    overflow: hidden;
}
.information .aside>li span{
    display: inline-block;
    width: 30px;
    height:30px;
    background: url("../img/aside-black@1X.b9c594ce.png")no-repeat;
}
.information .aside>li:hover span{
    background:url("../img/aside-red.b032fdd4.png") no-repeat;
}
.information .aside>li:nth-child(2) span{
    background-position: 0px -30px;
}
.information .aside>li:nth-child(3) span{
    background-position: 0px -60px;
}
.information .aside>li:nth-child(4) span{
    background-position: 0px -90px;
}
.information .aside>li:nth-child(5) span{
    background-position: 0px -120px;
}
.information .aside>li .phone-no{
    position: relative;
    width:200px;
    height:60px;
    background:rgba(255,255,255,1);
    border-radius:5px;
    text-align: center;
    line-height: 60px;
    transition:all .6s ease;
    font-size:14px;
    font-weight:500;
    color:rgba(0,0,0,0.65);
    box-shadow:0px 2px 4px 0px rgba(217,217,217,1);
}
.aside_in{
    position: absolute;
    right: 0;
    top: 0;
    z-index: 1;
    transition:all .3s ease;
    padding-right: 20px;
    opacity:0;
    visibility: hidden;
}
.information .aside>li:hover{
    overflow: visible;
}
.information .aside>li:hover .aside_in{
    visibility: visible;
    right:60px;
    opacity: 1;
}
.information .aside>li .phone-no::after{
    content:'';
    position: absolute;
    border:10px solid transparent;
    border-top-color:#fff;
    right:-10px;
    top:25px;
}
aside.information .aside>li:nth-of-type(3) .app-ewm,
aside.information .aside>li:nth-of-type(4) .gzh-ewm{
    position: relative;
    width:200px;
    height:224px;
    background:rgba(255,255,255,1);
    padding: 14px 15px 0;
    top: -77px;
    border-radius:5px;
    box-sizing:border-box;
    box-shadow: 0px 2px 4px 0px rgba(217,217,217,1);
}

aside.information .aside>li:nth-of-type(3) .app-ewm img,
aside.information .aside>li:nth-of-type(4) .gzh-ewm img{
    width:170px;
    height:170px;
}
aside.information .aside>li:nth-of-type(3) .app-ewm h5,
aside.information .aside>li:nth-of-type(4) .gzh-ewm h5{
    margin-top: 9px;
    font-size:14px;
    font-weight:500;
    color:rgba(153,153,153,1);
    letter-spacing:1px;
}
aside.information .aside>li:nth-of-type(3) .app-ewm::after,
aside.information .aside>li:nth-of-type(4) .gzh-ewm::after{
    content:'';
    position: absolute;
    border:10px solid transparent;
    border-top-color:#fff;
    right:-10px;
    top: 55%;
    transform: translateY(-50%);
}

.slide_zx_div {
    position: fixed;
    /*top: 24%;*/
    right: 0;
    top: 25%;
    height: 95px;
    width: 64px;
    z-index: 10;
}
.slide_zx{
    background: url("//imgcdn.bangkao.com/src/img/slide_zx.d3f434dd.png") no-repeat ;
    -webkit-animation: slide_zx 1s linear 1s infinite alternate;
    animation: slide_zx 1s linear 1s infinite alternate;
    -webkit-animation-name: slide_zx;
    animation-name: slide_zx;
    -moz-animation: slide_zx 1s linear 1s infinite alternate;
    -ms-animation: slide_zx 1s linear 1s infinite alternate;
    -o-animation: slide_zx 1s linear 1s infinite alternate;
    height: 76px;
    width: 64px;
    background-size: 64px 76px;
    position: absolute;
    cursor: pointer;
    bottom: 0px;
}
@keyframes slide_zx {
    from {bottom: 0px;}
    to {bottom: 5px;}
}
@keyframes slide_zx
{
    from {bottom: 0px;}
    to {bottom: 5px;}
}

@-moz-keyframes slide_zx /* Firefox */
{
    from {bottom: 0px;}
    to {bottom: 5px;}
}

@-webkit-keyframes slide_zx /* Safari 和 Chrome */
{
    from {bottom: 0px;}
    to {bottom: 5px;}
}

@-o-keyframes slide_zx /* Opera */
{
    from {bottom: 0px;}
    to {bottom: 5px;}
}
.slide_zx_div i{
    background: url("//imgcdn.bangkao.com/src/img/slide_zx_close.c21ae871.png") no-repeat;
    width: 16px;
    height: 16px;
    background-size: 16px 16px;
    position: absolute;
    top: 0px;
    right: 0px;
    cursor: pointer;
}

.footer{
    height: 300px;
    background-color:#fff;
    color:rgb(155, 155, 155);
}
.footer .footer-content{
    width: 65%;
    min-width: 1200px;
    margin:0 auto;
    overflow: hidden;
}
.footer .footer-content .footer-top{
    margin-top:25px;
    border-bottom:1px solid rgb(204, 204, 204);
}
.footer .footer-content .footer-top .footer-left{
    float: left;
    width:830px;
}
.footer .footer-content .footer-top .footer-left .footer li{
    float: left;
    margin-right: 40px;
    margin-bottom: 15px;
    color:rgb(155, 155, 155);
}
.footer .footer-content .footer-top .footer-left .footer li a{
    color: #000;
}
.footer .footer-content .footer-top .footer-left .footer li:nth-child(8){
    margin-right: 0px;
}
.footer .footer-content .footer-top .footer-left p{
    margin-bottom: 12px;
    text-align: left;
}
.footer .footer-content .footer-top .footer-left p >span{
    font-size: 18px;
    color: #222;
}
.footer .footer-content .footer-top .footer-right .app{
    float: right;
    width:90px;
    height: 118px;
    background:url(../img/ewm.260b9261.png) no-repeat 0 0;
}
.footer .footer-content .footer-top .footer-right .gzh{
    float: right;
    width:90px;
    height: 118px;
    margin-right: 50px;
    background:url(../img/ewm.260b9261.png) no-repeat -93px 0;
}
.footer .footer-content .footer-bottom .footer-ul li{
    float: left;
    margin: 10px 30px 0 0;
    font-size: 14px;
}
.footer .footer-content .footer-bottom .footer-ul{
    margin-bottom: 30px;
}
.footer .footer-content .footer-bottom .footer-ul li:last-child{
    margin-right: 0px;
}
.footer-ul{
    display: flex;
    align-content: center;
    justify-content: space-between;
}
.footer .footer-content .footer-bottom .footer-ul li a{
    color: #666;
    font-size: 12px;
}
.footer .footer-content .footer-bottom .footer-ul li a span{
    display: inline-block;
    width: 20px;
    height: 20px;
    vertical-align: middle;
    padding-right: 5px;
}

.footer .footer-content .footer-bottom .footer-ul li:nth-of-type(1) a span{
    background: url(../img/footer-ico.29ecd1ae.png) no-repeat 0 0;
}
.footer .footer-content .footer-bottom .footer-ul li:nth-of-type(2) a span{
    background: url(../img/footer-ico.29ecd1ae.png) no-repeat 0 -21px;
}
.footer .footer-content .footer-bottom .footer-ul li:nth-of-type(3) a span{
    background: url(../img/footer-ico.29ecd1ae.png) no-repeat 0px -43px;
}
.footer .footer-content .footer-bottom .footer-ul li:nth-of-type(4) a span{
    background: url(../img/footer-ico.29ecd1ae.png) no-repeat 0px -71px;
}
.footer .footer-content .footer-bottom .footer-ul li:nth-of-type(5) a span{
    background: url(../img/footer-ico.29ecd1ae.png) no-repeat 0px -93px;
}
.footer .footer-content .footer-bottom .footer-ul li:nth-of-type(6) a span{
    background: url(../img/footer-ico.29ecd1ae.png) no-repeat 0px -116px;
}
.footer .footer-content .footer-bottom .footer-ul li:nth-of-type(7) a span{
    background: url(../img/footer-ico.29ecd1ae.png) no-repeat 0px -138px;
}
.footer .footer-content .footer-bottom .footer-ul li:nth-of-type(8) a span{
    background: url(../img/footer-ico.29ecd1ae.png) no-repeat 0px -161px;
}
.footer .footer-content .footer-bottom .copyright-ul{
    display: flex;
    justify-content: center;
}
.footer .footer-content .footer-bottom .copyright-ul li{
    margin: 0 10px 10px 10px;
}
.footer .footer-content .footer-bottom .copyright-ul li a{
    font-size: 12px;
    color: #666;
}
.footer_link li{
    display: inline-block;
    vertical-align: top;
    margin-right: 34px;
    margin-bottom: 10px;
}
.footer_link{
    margin-bottom: 38px;
    text-align: left;
}
.footer_link li a{
    font-size: 14px;
    color: #333;
}
.footer_end{
    margin: 5px 0;
    text-align: center;
    font-size: 12px;
    color: #666;
}
.footer_end a{
    color: #333;
}
/* 弹窗 */
.chose-course-mask{
    position: fixed;
    width:100%;
    height:100%;
    background-color:rgba(0, 0, 0, .85);
    left:0px;
    top:0px;
    z-index: 9999;
    display: none;
}
.menu-mask{
    display: none;
    position: absolute;
    z-index: 9999;
    margin:auto;
    top:60px;
    width:842px;
    left: 212px;
    /*transform: translateX(-50%);*/
    /*min-height:288px;*/
    background:rgba(255,255,255,1);
    box-shadow:0px 2px 8px 0px rgba(0,0,0,0.15);
    border-radius:0px 0px 5px 5px;
}
.courselist_box{
    margin-top: -2px;
}
.chose-course-wrap{
    width:842px;
    background:rgba(255,255,255,1);
    box-shadow:0px 2px 8px 0px rgba(0,0,0,0.15);
    border-radius:5px;
    margin:auto;
    padding:40px 0 0 40px;
    box-sizing: border-box;
}
.close-btn{
    width:13px;
    height:13px;
    background:url("../img/close.edcb4405.png") no-repeat;
    border-radius:3px;
    position: absolute;
    right:10px;
    top:10px;
    cursor:pointer;
}

/*.chose-course-wrap .course-list .sub-subject{
    margin-bottom: 30px;
}*/
.chose-course-wrap .course-list .sub-subject a{
    color: #666;
}
.chose-course-wrap .course-list .sub-subject dt,
.chose-course-wrap .course-list .sub-subject dd{
    float: left;
}
.chose-course-wrap .course-list .sub-subject dt{
    font-size:16px;
    font-weight:900;
    color:#666;
    line-height:22px;
    width:90px;

}
.chose-course-wrap .course-list .sub-subject dd{
    font-size:14px;
    font-weight:400;
    color:rgba(34,34,34,1);
    margin-right: 30px;
    margin-bottom:30px;
    line-height:22px;
}
.chose-course-wrap .course-list .sub-subject dd:hover a{
    color:#F85C5B;
    border-bottom:2px solid #F85C5B;
}

/*修改样式*/
.sub-subject{
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
}
.sub-subject div{
    flex: 1;
}
.nav .nav-right{
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}
.nav_tx_xl{
    visibility: hidden;
    position: absolute;
    width: 120px;
    right: 0px;
    top: 64px;
    font-size: 0px;
    background: #fff;
    z-index: 1000;
    padding: 10px 0px;
    border-radius: 3px;
    box-shadow: 0px 1px 5px #d0cfcf;
    transition: all 0.3s ease;
    opacity: 0;
}
.header_face{
    width:30px;
    height:30px;
    margin-right:8px;
    border-radius: 50%;
}
.nav_tx_xl li{
    text-align: center;
    height: 34px;
    font-size: 14px;
    line-height: 34px;
    cursor: pointer;
    color: #222222;
}
.nav_tx_xl li:last-child{
    color: #999999;
}
.nav_tx_xl li:not(.no_change):hover{
    color: #F85C5B;
}
.nav_tx_xl li:not(.no_change):hover a{
    color: #F85C5B;
}
.nav .nav-portrait{
    display: flex;
    align-items: center;
    margin-right: 4px;
    cursor: pointer;
    position: relative;
    transition: all 0.3s ease;
}
.nav .nav-portrait:hover .nav_tx_xl{
    opacity: 1;
    visibility: inherit;
    top: 64px;
}
.nav .nav-portrait:hover>img{
    border-color: #F85C5B;
}
.nav .nav-portrait:hover>div:first-child{
    /*border-color: #F85C5B;*/
}
.nav .nav-portrait:hover>a{
    color: #F85C5B;
}
.nav .nav-portrait:hover>i{
    transform: rotate(180deg);
}
.nav-portrait_img{
    display: inline-block;
    width: 40px;
    height: 40px;
    box-sizing: border-box;
    border-radius: 20px;
    font-size: 0px;
    vertical-align: middle;
    border: 1px solid transparent;
}
.nav-portrait>a{
    font-size: 14px;
    color: #222;
    margin-right: 5px;
}
#backusername{
    max-width:81px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.nav .nav-portrait span{
    display: inline-block;
    width:15px;
    height:9px;
    background: url(//imgcdn.bangkao.com/src/userCenter/img/sjx.411fa444.png) no-repeat center center ;
    background-size: 12px 8px;
}
.class_change{
    display: inline-block;
    width:15px;
    height:9px;
    background: url(//imgcdn.bangkao.com/src/userCenter/img/sjx.411fa444.png) no-repeat center center;
    margin-left: 2px;
    vertical-align: 1.1px;
}
.nav .nav-right-content{
    float: right;
}

.nav .nav-right-content a{
    color: #333;
    font-size: 16px;
}
.nav .nav-right-content a:hover{
    color: #f53533;
}
.nav .nav-right-content span{
    margin: 0 5px;
    vertical-align: 2px;
}
.nav .nav-right::after{
    content: '';
    display: block;
    clear: both;
}
.header_toggle{
    float: right;
}
.header_toggle div{
    margin-right: 60px;
}