body {
    font-family: "Microsoft YaHei";
    margin: 0;
    padding: 0;
}
.outbox{
    min-width: 1170px;
    background-color: rgba(0, 191, 242, 0.2);
    padding: 20px 0 80px 0;
}
.ipaiAcademyTitle{
    width: 1170px;
    font-size: 20px;
    font-weight: 700;
    margin: 20px auto;
    margin-bottom: 40px;
}
.ipaiAcademyTitle > p:first-child{
    font-size: 32px;
}
.innerBox{
    width: 1170px;
    background-color: white;
    margin: 0 auto;
    padding: 50px 0px;
    border-radius: 20px;
}
.grade1,.grade2,.grade3,.grade4,.grade5,.grade6{
    margin-bottom: 80px;
}
.gradeTitle{
    background-color: rgb(0, 107, 159);
    display: inline-block;
    padding: 10px 100px;
    color: rgb(255, 255, 255);
    margin-left: -10px;
    box-shadow: 10px 10px rgb(188, 188, 188);
    font-weight: 700;
    font-size: 26px;
}
.typeTitle{
    width: 100px;
    font-size: 20px;
    font-weight: 700;
    margin: 32px 0 0px 32px;
}
.topicImg{
    width: 60px;
    margin: 32px 0 12px 32px;
}
.topicTitle{
    display:block;
    font-size: 16px;
    font-weight: 700;
    width: 100px;
    margin-left: 32px;
}
.topicBox{
    display: inline-block;
    vertical-align: top;
}
/*设置aliplayer的拖动点的样式*/
.prism-player .prism-progress .prism-progress-cursor,
.prism-player .prism-liveshift-progress .prism-progress-cursor {
    width: 20px;
    height: 20px;
    top: -5px;
    border: 1px solid #00c1de;
    border-radius: 20px;
    overflow: hidden;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

.player{
    margin:32px 0 0 24px;
    display: inline-block;
    vertical-align: middle;
}
.topicIntroduction{
    width: 200px;
    height: 320px;
    display: inline-block;
    vertical-align: top;
    margin: 32px 0 0 32px;
}
.topicIntroduction > p{
    width: 200px;
    height: 274px;
    font-size: 16px;
    font-weight: 600;
}
.topicIntroduction > img{
    float: right;
    width: 130px;
    cursor: pointer;
}
.moreVideos{
    margin-top: 12px;
    margin-left: 940px;
}


ul.nav-tabs {
    border-radius: 4px;
}

ul.nav-tabs li {
    margin: 0;
}

ul.nav-tabs li:first-child {
    border-top: none;
}

ul.nav-tabs li a {
    margin: 0;
    padding: 8px 16px;
    border-radius: 0;
}

ul.nav-tabs li.active a, ul.nav-tabs li.active a:hover {
    color: #fff;
    background: #0088cc;
}

ul.nav-tabs li:first-child a {
    border-radius: 4px 4px 0 0;
}

ul.nav-tabs li:last-child a {
    border-radius: 0 0 4px 4px;
}

ul.nav-tabs.affix {
    top: 30px; /* Set the top position of pinned element */
}


.nav > li > a {
    padding: 10px;
    font-size: 15px !important;
}

.nav-tabs > li.active > a, .nav-tabs > li.active > a:focus, .nav-tabs > li.active > a:hover {
    border: none;
}

.nav-tabs {
    border-bottom: transparent !important;
}

.nav > li > a:focus, .nav > li > a:hover, .nav > li:hover, .nav > li:focus, .academyNavigation li a:hover, .academyNavigation li a:focus, .academyNavigation li:hover, .academyNavigation li:focus {
    background-color: transparent;
    text-decoration: none;
}
.nav-tabs > li > a:hover {
    border: 1px solid white;
}

.nav li a {
    color: #000;
}
.nav {
    width: 190px;
    border-left: 1px solid #e1e1e1;
}
.academyNavigation .nav li{
    margin-left: 14px;
    list-style: disc;
    display: list-item;
}
#lilist div {
    margin-left: 30px;
    margin-top: 10px;
    display: none;
}
.academyNavigation li {
    width: 110px;
    height: 25px;
    list-style: none;
}

.academyNavigation li a {
    font-size: 13px !important;
    text-decoration: none !important;
}

.academyNavigation ul{
    color: #e1e1e1;
}
#nav_1>li,#nav_2>li,#nav_3>li,#nav_4>li,#nav_5>li,#nav_6>li{
    list-style: none;
    margin-left: 0;
}
.back_to_top {
    width: 36px;
    height: 36px;
    line-height: 45px;
    border-radius: 5px;
    border: 1px solid #d5d5d5;
    display: inline-block !important;
    text-align: center;
}

.back_to_top:hover {
    cursor: pointer;
}

.back_to_top span {
    width: 36px;
    color: #aaa;
    font-size: 26px;
}

.popup_registration_window{
    width: 100%;
    height: 100%;
    background-color:rgba(0,0,0,0.4);
    position: fixed;
    left: 0px;
    top: 0px;
    display: none;
    z-index: 10000;
}
.registration_div{
    position:fixed;
    top:40%;
    left:50%;
    margin:-200px 0 0 -350px;
    border-radius: 20px;
    text-align: center;
}

.registration_top{
    width: 600px;
    height: 320px;
    background-image: url("/images/planetii/planetiiAcademy/registration_top_pic.png");
    background-size: 600px;
    margin: 0 auto;
}
.closeWin{
    width: 20px;
    height: 20px;
    float: right;
    margin-right: 10px;
    margin-top: 43px;
    cursor: pointer;
}
.registration_content{
    width: 700px;
    height: 312px;
    background-image: url("/images/planetii/planetiiAcademy/registration_content_bg.png");
    background-size: 700px;
    position: relative;
    top: -150px;
    padding-top: 68px;
    font-size: 18px;
    font-weight: 600;
}
.registration_content > p{
    width: 547px;
    margin: 0 auto;
    text-align: center;
}
.registration_content > img{
    width: 180px;
    margin: 35px 20px 20px 20px;
    cursor: pointer;
}

.prism-player .prism-big-play-btn {
    z-index: 1!important;
}