#think_page_trace_open {
    opacity: 0;
}

.video-js {
    width: inherit;
    height: inherit;
}

.vjs-slider-horizontal .vjs-volume-level:before {
    top: -.4em !important;
}

.video-js.vjs-16-9, .video-js.vjs-4-3, .video-js.vjs-fluid {
    height: inherit !important;
}

a:focus {
    outline: none;
}

textarea {
    resize: none;
}

html {
    -ms-text-size-adjust: 100%;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
    height: 100%;
    overflow: hidden !important;
}

body {
    width: 100%;
    height: 100%;
    background: #000;
    overflow: hidden;
}

body .live, html .live {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    top: 0;
    background-color: #333333;
    color: #ffffff;
}

::-webkit-scrollbar-track-piece {
    background-color: transparent;
}

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb {
    background-color: #222222;
    background-clip: padding-box;
    min-height: 28px;
}

::-webkit-scrollbar-thumb:hover {
    background-color: #000;
}

.study-body {
    position: absolute;
    top: 68px;
    bottom: 0;
    left: 0;
    right: 300px;
    /*padding: 28px 36px;*/
}

.chat {
    width: 300px;
    position: absolute;
    right: 0;
    bottom: 0;
    top: 68px;
    z-index: 2;
    background-color: #2b3033;
}

.study-header {
    width: 100%;
    height: 68px;
    color: #aaa;
    background: #1d1d1d;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    position: relative;
    z-index: 3000;
}

.video-header {
    display: flex;
    justify-content: space-between;
}

.video-header h2 {
    color: #ffffff;
    line-height: 68px;
    font-size: 24px;
}

.video-header .live-menu {
    font-size: 16px;
    color: #a0a0a0;
    line-height: 68px;
    margin-left: 24px;
}

.header-tool {
    width: auto;
}

.header-tool ul {
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.header-tool ul li {
    float: right;
    margin-right: 24px;
}

.header-tool ul li a {
    color: #a0a0a0;
    font-size: 16px;
    line-height: 68px;
}

.header-tool ul li .back-btn {
    display: block;
    background-color: #606060;
    border-radius: 4px;
    color: #ffffff;
    line-height: unset;
    padding: 6px 12px;
    font-size: 16px;
}

.header-tool ul li .img_wrap {
    width: 32px;
    height: 32px;
    -webkit-border-radius: 50%;
    -moz-border-radius: 50%;
    border-radius: 50%;
    background-color: #fff;
}

.video-wrap {
    width: 100%;
    height: 100%;
    background-color: #111;
}


.video-img {
    width: 100%;
    height: 100%;
}

.video-img img {
    object-fit: contain;
}

.hide-wrap {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background-color: rgba(0, 0, 0, .7);
    text-align: center;
    display: block;
    /*z-index: 98;*/
}

.hide-wrap .txt-wrap {
    position: relative;
    top: 50%;
    margin-top: -80px;
    /*z-index: 999;*/
}


.hide-wrap span {
    display: block;
    margin-bottom: 12px;
}

.hide-wrap .no-start {
    font-size: 18px;
    color: #ffffff;
}

.hide-wrap .time {
    font-size: 14px;
    color: #ff363c;
}

.price-wrap {
    display: flex;
    justify-content: center;
    margin-bottom: 12px;
    line-height: 46px;
}

.price-wrap > span {
    margin: 0 6px;
    color: #fc731d;
    display: flex;
}

.price-wrap .noD {
    color: #dcdcdc;
}

.price-wrap > span b {
    font-size: 26px;
    line-height: 46px;
}

.price-wrap > span em {
    display: block;
    line-height: 46px;
}

.hide-wrap .price {
    font-size: 14px;
    color: #fff;
}


.hide-wrap .price b {
    color: #fc731d;
}

.isDiscount {
    font-size: 14px;
}

.isDiscount .price {
    font-size: 20px;
    color: #fc731d;
    padding: 0 6px;
}

.isDiscount em {
    font-size: 20px;
    padding: 0 6px;
    color: var(--theme-color);
}

.hide-wrap .price b {
    font-size: 20px;
}

.hide-wrap a {
    display: block;
    margin: 0 auto;
    margin-bottom: 12px;
    width: 146px;
    height: 40px;
    line-height: 40px;
    color: #ffffff;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    border-radius: 4px;
    text-align: center;
    font-size: 16px;
}

.hide-wrap .toPay {
    background-color: #fc731d;
}

.hide-wrap .isOK {
    background-color: #777777;
}

.hide-wrap .txt {
    color: #dcdcdc;
}

.evaluate {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background-color: rgba(0, 0, 0, .7);
    text-align: center;
    display: none;
    /*z-index: 99;*/
}

.evaluate-main {
    position: relative;
    top: 50%;
    width: 300px;
    height: 200px;
    background-color: #ffffff;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    border-radius: 4px;
    color: #666666;
    margin: 0 auto;
    margin-top: -100px;
}

.evaluate-main form {
    padding-top: 50px;
}

.evaluate-main > span {
    position: absolute;
    top: 16px;
    right: 24px;
    cursor: pointer;
}

.evaluate-main p {
    font-size: 16px;
    margin-bottom: 12px;
}

.evaluate-main button {
    border: none;
    color: #ffffff;
    background-color: var(--theme-color);
    width: 80px;
    height: 30px;
    margin-top: 16px;
}

.sign-in {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background-color: rgba(0, 0, 0, .7);
    text-align: center;
    display: none;
    z-index: 9999;
}

.sign-main {
    position: relative;
    top: 50%;
    width: 300px;
    height: 200px;
    background-color: #ffffff;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    border-radius: 4px;
    color: #666666;
    margin: 0 auto;
    margin-top: -100px;
    z-index: 10000;
    overflow: hidden;
}

.sign-main .close-sign {
    font-size: 16px;
    color: #ffffff;
    position: absolute;
    top: 6px;
    right: 12px;
}

.sign-main form {
    padding-top: 36px;
}

.sign-main h2 {
    font-weight: inherit;
    font-size: 16px;
    background-color: var(--theme-color);
    color: #ffffff;
    line-height: 40px;
}

.sign-main button {
    border: none;
    color: #ffffff;
    background-color: var(--theme-color);
    width: 80px;
    height: 30px;
    margin-top: 16px;
    display: block;
}

.sign-main label {
    font-size: 14px;
    color: #666666;
    font-weight: normal;
    margin-bottom: 0;
}

.sign-main input {
    background-color: #fff;
    background-image: none;
    border-radius: 4px;
    border: 1px solid #dcdfe6;
    box-sizing: border-box;
    color: #606266;
    display: inline-block;
    height: 36px;
    line-height: 36px;
    outline: none;
    padding: 0 15px;
    transition: border-color .2s cubic-bezier(.645, .045, .355, 1);
    width: inherit;
    cursor: pointer;
}

.chat {
    height: 100%;
}

.chat-tab {
    height: 56px;
}

.chat-tab ul {
    display: flex;
    justify-content: space-around;
}

.chat-tab ul li {
    width: 50%;
    text-align: center;
    line-height: 56px;
    border-bottom: 1px solid #1e2227;
    background-color: #1e2227;
}

.chat-tab ul li a {
    font-size: 16px;
    color: #898989;
}

.chat-tab ul li.on a {
    color: var(--theme-color);
}

.chat-tab ul li.on {
    background-color: #2b3033;
}

.chat-con {
    height: 100%;
}

.list-wrap {
    height: 100%;
    position: relative;
    padding-top: 4px;
    padding-bottom: 346px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

.chat-list {
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    background: url("../images/logo-w-300-l.png");
    padding-bottom: 50px;
}

.chat-list li {
    padding: 8px 12px 18px 12px;
}

.chat-list li a {
    color: var(--theme-color);
    font-size: 14px;
}

.chat-list li .user-name {
    padding-bottom: 4px;
}


.chat-list li .user-name .prohibit {
    font-size: 14px;
    margin-left: 12px;
    color: #DDDDDD;
    cursor: pointer;
}

.chat-list li .user-name span {
    display: inline-block;
    width: 52px;
    height: 24px;
    line-height: 24px;
    text-align: center;
    color: #ffffff;
    margin-right: 6px;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    border-radius: 4px;
}

.chat-list li .user-name .chat-admin {
    background-color: #4e95de;
}

.chat-list li .user-name .chat-admin-t {
    background-color: #fc731d;
}

.chat-list li p {
    color: #cacaca;
    font-size: 14px;
}

.chat-list li em {
    display: block;
    width: 100%;
    font-size: 14px;
    color: #898989;
    text-align: center;
}

.chat-list li em span {
    font-size: 20px;
    color: #ff383d;
}

.edit {
    position: absolute;
    bottom: 124px;
    left: 0;
    width: 100%;
    height: 224px;
    border-top: 1px solid #666666;
    background-color: #384145;
}

.edit .tool {
    padding: 6px;
    display: flex;
    justify-content: space-between;
    background-color: #2b3033;
}

.edit .tool .showMember {
    color: #ffffff;
    font-size: 14px;
}

.edit .tool label {
    margin-bottom: 0;
    font-weight: normal;
    margin-right: 12px;
}


.txt-input {
    background-color: transparent;
    padding-top: 6px;
}

.txt-input .txt-con {
    background-color: transparent;
    width: 100%;
    border: none;
    padding: 0 6px;
    height: 130px;
    font-size: 12px;
    letter-spacing: 1px;
    overflow-y: visible;
    color: #ccc;
}

.txt-input .sentInfo {
    width: 80px;
    height: 30px;
    border: none;
    color: #fff;
    background-color: var(--theme-color);
    margin-left: 210px;
}

.user-list {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    right: -300px;
    z-index: 99;
    background-color: #2b3033;
    transition: all .5s;
}

.user-list-main {
    position: relative;
    width: 100%;
    height: 100%;
}

.user-list-main > h2 {
    color: var(--theme-color);
    font-size: 14px;
    padding: 0 10px;
    margin-bottom: 16px;
    margin-top: 16px;
}

.teacher-ctrl {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-direction: column;
    flex-wrap: wrap;
    padding: 6px 4px;
}

.teacher-ctrl > li {
    display: flex;
    justify-content: flex-start;
    padding: 10px 0;
}

.teacher-ctrl a {
    font-size: 12px;
    color: #FFFFFF;
    line-height: 26px;
}

.teacher-ctrl #endCourse {
    display: none;
}

.teacher-ctrl ._white {
    color: #ffffff;
}

.teacher-ctrl ._red {
    color: #ff0000;
    display: none;
}

.teacher-ctrl .state-btn {
    display: inline-block;
    width: 110px;
    line-height: 26px;
    font-size: 12px;
    padding: 0 6px;
    text-align: center;
}
.teacher-ctrl .state-btn._red {
    background-color: #F56C6C;
    color: #FFFFFF;
}
.teacher-ctrl .state-btn._white {
    background-color: var(--theme-color);
}
.user-list .showMember {
    padding: 0 12px;
    cursor: pointer;
    /*background-color: #1e2227;*/
    line-height: 24px;
    color: var(--theme-color);
    margin-left: -38px;
    position: absolute;
    top: 12px;
    left: 0;
}

.user-list .closeMember {
    padding: 0 12px;
    cursor: pointer;
    line-height: 24px;
    color: var(--theme-color);
    margin-left: -38px;
    position: absolute;
    top: -6px;
    right: 0;
    font-size: 18px;
}

.user-list .refresh-user {
    display: block;
    width: 100%;
    height: 36px;
    line-height: 36px;
    text-align: center;
    color: var(--theme-color);
    background-color: #4a4949;
    font-size: 14px;
    margin-bottom: 12px;
}

.chat-user {
    width: 100%;
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    background: url("../images/logo-w-300-l.png");
}

.chat-user li {
    padding: 0 10px 16px 10px;
    display: flex;
    justify-content: flex-start;
}

.chat-user li .user-img {
    width: 36px;
    height: 36px;
    -webkit-border-radius: 50%;
    -moz-border-radius: 50%;
    border-radius: 50%;
    margin-right: 12px;
}

.chat-user li a {
    color: #ccc;
    font-size: 14px;
    line-height: 36px;
}

.chat-user li .user-name b {
    font-weight: normal;
    margin-left: 6px;
    cursor: pointer;
}

.course-info {
    padding: 24px;
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
}

.course-info > p {
    font-size: 14px;
    line-height: 22px;
    color: #898989;
    text-align: justify;
}

.teacher-info {
    padding: 36px 0;
}

.teacher {
    display: flex;
    justify-content: flex-start;
    margin-bottom: 18px;
}

.teacher span {
    font-size: 14px;
    color: #898989;
    line-height: 52px;
}

.teacher-info h2 {
    font-size: 24px;
    margin-bottom: 24px;
}

.teacher-info .img_wrap {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    margin-right: 12px;
}

.live-list {
    z-index: 3000;
    position: fixed;
    top: 68px;
    left: 0;
    bottom: 0;
    width: 400px;
    font-size: 14px;
    background-color: #2b3033;
    color: #999999;
    display: none;
}

.live-list .list-main {
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 24px 0;
}

.list-main ul {

}

.list-main ul li {
    padding: 14px 24px;
}

.list-main ul li .live-title {
    line-height: 24px;
    display: flex;
    justify-content: space-between;
}

.list-main ul li .live-title a {
    color: #999999;
    font-size: 16px;
}

.list-main ul li .live-title ._title {
    width: 260px;
    line-height: 24px;
    margin-bottom: 6px;
}

.list-main ul li .live-title .fs14 {
    font-size: 14px;
}

.list-main ul li span {
    display: block;
    font-size: 12px;
    padding-left: 22px;
}

.list-main ul li.on {
    background-color: #3c4347;
}

.list-main ul li.on a {
    color: var(--theme-color);
}

.list-main ul li.on a span {
    color: #999999;
}

.list-main ul li:hover {
    background-color: #3c4347;
}

.list-main ul li:hover a {
    color: var(--theme-color);
}

/*下拉*/
._select {
    width: 110px;
    height: 26px;
    background: #FFFFFF;
    margin: 0px auto;
    position: relative;
    cursor: pointer;
}

._select::after {
    content: "";
    display: block;
    width: 7px;
    height: 7px;
    border-left: 1px solid #D0D0D0;
    border-bottom: 1px solid #D0D0D0;
    top: 7px;
    right: 7px;
    position: absolute;
    transform: rotate(-46deg);
    transition: all .3s ease-in;
}

._select p {
    width: 110px;
    line-height: 26px;
    font-size: 12px;
    font-family: "microsoft yahei";
    color: #666666;
    padding: 0px 6px;
}

._select ul {
    width: inherit;
    display: block;
    background: #FFFFFF;
    position: absolute;
    top: 26px;
    left: 0px;
    z-index: 9;
    max-height: 0px;
    overflow: hidden;
    transition: max-height .3s ease-in;
}

._select ul li {
    width: 100%;
    height: 26px;
    line-height: 26px;
    padding: 0px 15px;
    list-style: none;
    color: #666666;
    font-size: 12px;
}

._select ul li.Selected {
    background: var(--theme-color);
    color: #FFFFFF;
}

._select ul li:hover {
    background: #D0D0D0;
}

@-webkit-keyframes slide-down {
    0% {
        transform: scale(1, 0);
    }
    25% {
        transform: scale(1, 1.2);
    }
    50% {
        transform: scale(1, 0.85);
    }
    75% {
        transform: scale(1, 1.05);
    }
    100% {
        transform: scale(1, 1);
    }
}

._select.open ul {
    max-height: 250px;
    transform-origin: 50% 0;
    -webkit-animation: slide-down .5s ease-in;
    transition: max-height .2s ease-in;
}

._select.open::after {
    transform: rotate(134deg);
    transition: all .3s ease-in;
    top: 10px;
}

.teacher-ctrl {
    z-index: 99;
}

.course-info > p {
    margin-top: 60px;
}

.sign-form {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.popup-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 9999;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,.5);
    display: none;
}

.popup-wrapper .popup-main {
    width: 300px;
    height: 300px;
    background-color: rgba(255,255,255,.5);
    border-radius: 4px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
    padding: 0 20px;
}

.popup-wrapper .popup-main .close-btn {
    position: absolute;
    top: 14px;
    right: 14px;
    z-index: 99;
    color: #FFFFFF;
    padding: 6px;
}