html,
body {
    margin: 0;
    padding: 0;
    font-family: "microsoft yahei";
    height: 100%;
    font-size: 12px;
    line-height: 20px;
    width: 100%;
    color: #333;
}

.main {
    width: 1200px;
    height: auto;
    overflow: hidden;
    margin: 0 auto;
}

.header {
    width: 100%;
    min-width: 1200px;
    background-color: #DD0000;
    text-align: center;
    display: block;
}

.top_Img {
    width: 100%;
    float: left;
    max-width: 1920px;
    margin: 0 auto;
}

.dt_1 {
    overflow: hidden;
    margin: 20px auto;
    color: #6E6E6E;
}

.dt_1 p {
    text-align: left;
    /* font-size: 14px; */
    color: #323232;
}

.dt_2 {
    margin: 0 auto;
    background-color: #f7f7f7;
    padding: 0 20px 20px;
}

.dt_2 p {
    font-size: 14px;
    font-weight: 550;
}

.dt_2 .dt_2_right .dateChoice {
    font-size: 12px;
    color: #A9AAAB;
    font-weight: 500;
    cursor: pointer;
    float: right;
    background-color: #e9e9e9;
    border-radius: 20px;
    padding: 0 10px;
    margin-right: -10px;
}

.dt_2_left {
    width: 100%;
    float: left;
    position: relative;
}

.dt_2_left .dt_leftBottom,
.dt_2_left .prism-player {
    float: left;
    padding-bottom: 56.25%;
}
.prism-player{
    width: 100%;
    height: 0;
    background-color: #000;
    position: relative;
}
.dt_2_left .dt_leftBottom {
    width: 100%;
    height: 56px;
    float: left;
    /*border: solid red 1px;*/
    line-height: 56px;
    padding-left: 10px;
}

.dt_leftBottom img {
    width: 30px;
    height: 30px;
    vertical-align: middle;
}

.dt_2_right {
    width: calc(100% - 870px);
    height: 530px;
    float: left;
    padding: 13px 24px 0px 20px;
    /*border: solid red 1px;*/
}

.dt_2_right ul {
    float: left;
    width: 100%;
    list-style: none;
    padding: 0;
    margin: 30px 0px 0px 0px;
}

.dt_2_right ul li {
    width: 100%;
    float: left;
    overflow: hidden;
    margin-bottom: 20px;
    background-color: rgba(0, 0, 0, .05);
    border-radius: 4px;
    padding: 15px 13px;
}
.dt_2_right ul li:nth-last-child(1) {
    margin-bottom: 0;
}

.dt_2_right .dt_r_title {
    width: 100%;
    margin: 0;
    padding: 0;
    font-size: 16px;
    font-weight: bold;
    font-stretch: normal;
    line-height: 19px;
    letter-spacing: 0px;
    color: #323232;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-bottom: 2px;
}

.dt_2_right .dt_r_des {
    font-size: 12px;
    font-weight: 500;
    font-stretch: normal;
    line-height: 17px;
    letter-spacing: 0px;
    color: #898a8f;
    margin: 0;
    padding: 0;
}

.dt_leftBottom .not_select,
.dt_leftBottom .select {
    width: 12px;
    height: 12px;
    cursor: pointer;
}

.not_select {
    display: none;
}

/*    CONTAINER___________________________START  */
.path{
    overflow: hidden;
    float: left;
}
.path .path_title{
    border-left: 3px solid #DD0000;
    font-size: 18px;
    font-weight: bold;
    font-stretch: normal;
    line-height: 18px;
    letter-spacing: 0px;
    color: #000000;
    padding-left: 4px;
}
.container{
    background-color: #ffffff;
    border: solid 1px #efefef;
    margin: 0 0 6px 0;
    overflow: hidden;
    display: block;
}
.courseInformation table tr td{
    background-color: #efefef;
    border-right: 1px solid #fff;
    border-bottom: 1px solid #fff;
    font-size: 16px;
    font-weight: normal;
    font-stretch: normal;
    line-height: 26px;
    letter-spacing: 0px;
    color: #323232;
    padding: 8px 20px;
}
.courseInformation table tr:nth-child(2n) td{
    background-color: #f7f7f7;
}
.courseInformation table tr td img.smicon{
    width: 18px;
    height: 18px;
    margin: 4px 0;
    float: left;
}
.courseInformation table tr td:nth-last-child(1){
    border-right: 0;
}
.courseInformation table tr td.wid150{
    width: 150px;
}
.courseInformation table tr td.wid360{
    width: 360px;
}
.courseInformation table tr td .dt_4_title {
    margin: 12px 0px;
}

.courseInformation table tr td textarea {
    padding: 5px;
    width: 1160px;
    height: 80px;
    background-color: #ffffff;
    border-radius: 4px;
    border: solid 1px #ccc;
    resize: none;
}

.courseInformation table tr td button {
    width: 120px;
    height: 36px;
    background-color: #c50505;
    border-radius: 8px;
    color: #fff;
    border: none;
    margin-top: 8px;
    float: right;
    margin-right: 28px;
    margin-bottom: 20px;
}


.bg_color-linear-gradient{
    padding-top: 20px;
    overflow: hidden;
    background-image: linear-gradient(0deg,
    #fff 0%,
    #fff7f7 100%);
}
.plateLists{
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: #fff9f9;
}
.plateLists .plateList a{
    overflow: hidden;
    display: block;
}
.plateLists .plateList img{
    float: left;
}

.path_lists .path_list-title{
    background-color: rgba(0, 0, 0, .02);
    font-size: 18px;
    font-weight: normal;
    font-stretch: normal;
    line-height: 25px;
    letter-spacing: 0px;
    color: #353639;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 13px 20px;
}
.path_lists .path_list-title a{
    font-size: 14px;
    font-weight: normal;
    font-stretch: normal;
    line-height: 20px;
    letter-spacing: 0px;
    color: #8e8e93;
}
.path_lists .path_list-content{
    padding: 20px 10px 0;
    overflow: hidden;
}
.path_lists.path_text-lists2 .path_list-content{
    background-color: #f9f9f9;
    border-radius: 2px;
    padding-top: 0;
}
.path_lists.path_img-lists .path_list-content .path_list{
    width: 50%;
    float: left;
    padding: 0 10px 20px;
}
.path_lists.path_img-lists .path_list-content .path_list .img{
    width: 100%;
    height: 0;
    padding-bottom: 60%;
    overflow: hidden;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;
    margin-bottom: 8px;
}
.path_lists.path_img-lists .path_list-content .path_list img{
    width: 100%;
}
.path_lists.path_img-lists .path_list-content .path_list .text{
    font-size: 16px;
    font-weight: normal;
    font-stretch: normal;
    line-height: 22px;
    height:44px;
    letter-spacing: 0px;
    color: #353639;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.path_text-lists .path_list-content{
    padding: 20px 20px 0;
}
.path_text-lists .path_list{
    display: flex;
    align-items: center;
}
.path_text-lists .path_list .circle{
    width: 5px;
    height: 5px;
    background-color: #9b9b9b;
    border-radius: 50%;
    margin-right: 20px;
}
.path_text-lists .path_list .border-bottom-dashed{
    border-bottom: 1px dashed #b2b2b2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: calc(100% - 25px);
    padding: 15px 0;
}
.path_text-lists .path_list:nth-last-child(1) .border-bottom-dashed{
    border-bottom: 0;
}
.path_text-lists .path_list .text{
    font-size: 16px;
    font-weight: normal;
    font-stretch: normal;
    line-height: 22px;
    letter-spacing: 0px;
    color: #353639;
    max-width: calc(100% - 100px);
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.path_text-lists .path_list .time{
    font-size: 13px;
    font-weight: normal;
    font-stretch: normal;
    line-height: 22px;
    letter-spacing: 0px;
    color: #9b9b9b;
}

.path_text-lists2 .path_list-title{
    padding-right: 30px;
}
.path_text-lists2 .path_list-fitst{
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #efefef;
    border-radius: 2px 2px 0px 0px;
    border-top: 1px solid #dedede;
    font-size: 16px;
    font-weight: normal;
    font-stretch: normal;
    line-height: 22px;
    letter-spacing: 0px;
    color: rgba(0, 0, 0, .6);
    padding: 4px 10px 4px 30px;
}
.path_text-lists2 .path_list .circle{
    width: 16px;
    height: 16px;
    border-radius: 50%;
    text-align: center;
    font-size: 13px;
    font-weight: normal;
    font-stretch: normal;
    line-height: 16px;
    letter-spacing: 0px;
    color: #dd0000;
    background-color: transparent;
    margin: 0 20px;
}
.path_text-lists2 .path_list .circle.topthree{
    background-color: #dd0000;
    color: #fff;
}
.path_text-lists2 .path_list .border-bottom-dashed{
    width: 100%;
    padding-right: 10px;
}
.path_text-lists2 .path_list .text{
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.path_text-lists2 .path_list.noData .text{
    font-size: 13px;
    font-weight: normal;
    font-stretch: normal;
    line-height: 22px;
    letter-spacing: 0px;
    color: #9b9b9b;
    margin: 0 auto;
}

/*    CONTAINER___________________________START  */
/*    FOOTER___________________________START  */
/*.footer-bg {
            width: 100%;
            height: 50px;
        }*/

.footer {
    text-align: center;
    margin-bottom: 20px;
    margin-top: 60px;
}
.footer p {
    margin-top: 0;
    margin-bottom: 0;
    line-height: 25px;
}

#imgConac {
    width: 100%;
    height: 50px;
}

/*    FOOTER___________________________END  */
/*    POSITION___________________________START  */
.position{
    padding: 18px 20px;
}
.position, .position a{
    font-size: 16px;
    font-weight: normal;
    font-stretch: normal;
    line-height: 22px;
    letter-spacing: 0px;
    color: #5a5a5a;
}
.position a.active{
    color: #c50505;
}
/*    POSITION___________________________END  */
/*    COURSEWARE___________________________START  */
.listpage .path_lists .path_list-title .text{
    border-left: 4px solid #c50505;
    font-size: 18px;
    font-weight: normal;
    font-stretch: normal;
    line-height: 25px;
    letter-spacing: 0px;
    color: #c50505;
    padding-left: 7px;
}
.listpage .path_lists.path_img-lists .path_list-content{
    padding-top: 0;
}
.listpage .path_lists.path_img-lists .path_list-content .border-top{
    border-bottom: solid 2px rgba(0, 0, 0, 0.15);
    margin: 15px 10px;
}
.listpage .path_lists.path_img-lists .path_list-content .path_list{
    width: 25%;
}
.listpage .path_lists.path_img-lists .path_list-content .path_list .text{
    display: flex;
    justify-content: space-between;
}
.listpage .path_lists.path_img-lists .path_list-content .path_list .text .title{
    /*overflow: hidden;*/
    /*white-space: nowrap;*/
    /*text-overflow: ellipsis;*/
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.listpage .path_lists.path_img-lists .path_list-content .path_list .text .classHour{
    width: 70px;
    min-width: 70px;
    font-size: 14px;
    font-weight: normal;
    font-stretch: normal;
    line-height: 20px;
    letter-spacing: 0px;
    color: #9b9b9b;
    text-align: right;
}
.listpage .path_lists.path_img-lists .path_list-content .path_list .text .classHour span{
    display: block;
}
/*    COURSEWARE___________________________END  */

/*    分页___________________________START  */
.sec-pagelist {
    text-align: center;
    padding: 0;
    margin: 10px 0;
}
.sec-pagelist li {
    display: inline-block;
    /*border: 1px solid #ccc;*/
    height: 25px;
    border-radius: 2px;
}
.sec-pagelist li a {
    display: block;
    color: #333;
    padding: 0 7px;
    line-height: 25px;
}
.sec-pagelist li a.disabled {
    cursor: not-allowed;
}
.sec-pagelist li a:hover {
    background: #ff4d4d;
    color: #fff;
}
.sec-pagelist li span {
    color: #333;
    padding: 0 10px;
    line-height: 30px;
}
.sec-pagelist li.active {
    /*background: #e60000;*/
    /*border: 1px solid #e60000;*/
    color: #e60000;
}
/*.sec-pagelist li.active a {*/
/*    color: #fff;*/
/*}*/
.sec-pagelist li.active a:hover {
    background: #ff4d4d;
}
.sec-pagelist input,.sec-pagelist select {
    display: inline-block;
    border: 1px solid #ccc;
    border-radius: 2px;
    width: 66px;
    height: 25px;
    line-height: 25px;
    color: #333;
    padding: 0 7px;
    vertical-align: top;
    text-align: center;
}
.sec-pagelist input:hover,.sec-pagelist select:hover {
    background: #f4f4f4;
}
/*    分页___________________________END  */


/* 视频 密码验证 */
.verificationForm{
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 1);
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
}
.verificationForm .bg{
    background-color: rgba(255, 255, 255, .3);
    height: 100px;
    -webkit-border-radius: 10px;
    -moz-border-radius: 10px;
    border-radius: 10px;
    padding: 20px;
    color: #fff;
    font-size: 16px;
}
.verificationForm .bg .title{
    margin-bottom: 10px;
}
.verificationForm .bg lable{
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.verificationForm .bg input{
    border: 0;
    border-radius: 10px;
    color: #fff;
    font-size: 16px;
    line-height: 30px;
    height: 30px;
    background-color: rgba(255, 255, 255, .6);
    padding: 0 10px;
}
.verificationForm .bg .btn{
    border: 0;
    border-radius: 10px;
    color: #fff;
    font-size: 16px;
    line-height: 30px;
    height: 30px;
    background-color: rgb(221, 0, 0);
    padding: 0 12px;
    margin-left: 10px;
}
.dt_2 p.videoTitle{
    font-size: 18px;
    font-weight: bold;
    font-stretch: normal;
    letter-spacing: 0px;
    color: #000000;
    border-left: 3px solid #dd0000;
    padding-left: 10px;
    margin: 15px 0;
}
.prism-cc-btn, .prism-setting-speed, .prism-setting-cc, .prism-setting-audio{
    display: none;
}
.prism-player .prism-setting-selector .header{
    min-width: auto;
}
video{
    object-fit:fill;
}

/* 水印 */
.watermark{
    position: absolute;
    left:0;
    right: 0;
    top: 0;
    bottom: 50px;
    z-index: 1;
    color: red;
    padding: 20px 20px;
    font-size: 20px;
    font-weight: bold;
    color: #fff;
}
.watermark img{
    width: 200px;
}
.watermark img:nth-last-child(1){
    position: absolute;
    bottom: 0;
    right: 20px;
}
.watermark span{
    position: absolute;
    top: 20px;
    right: 20px;
}
.errorposition{
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    z-index: 10000;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: red;
    padding: 20px 20px;
    font-size: 20px;
    font-weight: bold;
    color: #fff;
    display: none;
    background-color: #000;
}
.prism-player .prism-info-left-bottom{
    -webkit-transform: translateY(0);
    -moz-transform: translateY(0);
    -ms-transform: translateY(0);
    -o-transform: translateY(0);
    transform: translateY(0);
}

.btnTabs {
    width: 100%;
    display: flex;
    align-items: center;
    float: left;
    margin: 15px 0 0;
}
.btnTabs .btn{
    color: #333;
    font: 16px/1 Tahoma, Helvetica, Arial, "宋体", sans-serif;
    height: 30px;
    line-height: 30px;
    border-radius: 5px;
    text-align: center;
    background-color: #cccccc;
    margin-right: 15px;
    padding: 0 15px;
}
.btnTabs .btn.active{
    color: #fff;
    background-color: rgb(255,2,2);
}
/* 新增 */
.item_list{
	width: 100%;
	display: flex;
	/* margin-top: 20px; */
}
.item_list dl{
	width: 100px;
	height: 45px;
    background-color: #dedede;
	border-radius: 3px;
	color: #333;
    margin-right: 15px;
    margin-top: 10px;
	/*margin: 20px 15px 0px 20px;*/
	cursor: pointer;
	display: inline-block;
    text-align: center;
}
.item_list dl dt{
	width: 300px;
	height: 200px;
}
/* .item_list dl dt img{
	width: 100%;
	height: 100%;
} */
.item_list dl dd{
	height: 36px;
	line-height: 1.5;
	font-size: 16px;
	margin-top: 10px;
	color: #353639;
}
.vidioActive{
	color: #FF0000!important;
}