@charset "utf-8";


.videotext-course {
    width: 100%
}

    .videotext-course .section--study {
        width: 100%;
        font-size: 0
    }

    .videotext-course .study-video-wrapper {
        display: inline-block;
        vertical-align: top;
        width: 870px;
        height: 490px;
        position: relative;
        background-color: #000
    }

    .videotext-course .study-video-wrapper--gray:after {
        content: "";
        display: block;
        position: absolute;
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
        background-color: #000000;
        background-color: rgba(0, 0, 0, .6)
    }

    .videotext-course .cover-img {
        background-color: #1d1d1d;
        display: block;
        width: 100%;
        height: 100%
    }

    .videotext-course .study-video {
        display: none;
        z-index: 1;
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%
    }

    .videotext-course .task-list-wrapper {
        display: inline-block;
        vertical-align: top;
        height: 94%;
        width: 230px;
        background-color: #131313;
        font-size: 12px;
        position: relative;
        float:right;
    }

        .videotext-course .task-list-wrapper:before {
            content: "";
            z-index: 1;
            width: 310px;
            height: 16px;
            background-color: #131313;
            background: -webkit-gradient(linear, left bottom, left top, from(#131313), color-stop(50%, #131313));
            background: -webkit-linear-gradient(bottom, #131313 0%, #131313 50%);
            background: -o-linear-gradient(bottom, #131313 0%, #131313 50%);
            background: linear-gradient(to top, #131313 0%, #131313 50%);
            background: -webkit-gradient(linear, left bottom, left top, from(rgba(19, 19, 19, .5)), color-stop(50%, #131313));
            background: -webkit-linear-gradient(bottom, rgba(19, 19, 19, .5) 0%, #131313 50%);
            background: -o-linear-gradient(bottom, rgba(19, 19, 19, .5) 0%, #131313 50%);
            background: linear-gradient(to top, rgba(19, 19, 19, .5) 0%, #131313 50%);
            position: absolute;
            top: 0;
            left: 0
        }

    .videotext-course .task-list--empty {
        font-size: 20px;
        color: #fff;
        text-align: center;
        margin-top: 20px
    }

    .videotext-course .task-list--loading {
        position: absolute;
        top: 50%;
        left: 50%;
        -webkit-transform: translate(-50%, -50%);
        -ms-transform: translate(-50%, -50%);
        transform: translate(-50%, -50%);
        text-align: center
    }

        .videotext-course .task-list--loading img {
            width: 45px;
            height: 45px
        }

        .videotext-course .task-list--loading p {
            color: #999;
            font-size: 16px
        }

    .videotext-course .study-task-list, .videotext-course .coding-tasklist {
        -webkit-box-sizing: border-box;
        box-sizing: border-box;
        height: 100%;
        padding: 20px 16px;
        overflow: auto;
        color: #c7c7c7;
        font-size: 14px;
        overflow-x: hidden;
        overflow-y: auto
    }

        .videotext-course .study-task-list::-webkit-scrollbar, .videotext-course .coding-tasklist::-webkit-scrollbar {
            background-color: #131313;
            width: 5px
        }

        .videotext-course .study-task-list::-webkit-scrollbar-thumb, .videotext-course .coding-tasklist::-webkit-scrollbar-thumb {
            background-color: #f4f4f4;
            background-color: rgba(244, 244, 244, .4)
        }

            .videotext-course .study-task-list::-webkit-scrollbar-thumb:hover, .videotext-course .coding-tasklist::-webkit-scrollbar-thumb:hover {
                background-color: #f4f4f4;
                background-color: rgba(244, 244, 244, .3)
            }

        .videotext-course .study-task-list::-webkit-scrollbar-track, .videotext-course .coding-tasklist::-webkit-scrollbar-track {
            border: none;
            background-color: #131313
        }

    .videotext-course .coding-tasklist {
        padding: 16px 12px;
        color: #767676
    }

        .videotext-course .coding-tasklist .flag-orange {
            -webkit-transform: scale(0.9);
            -ms-transform: scale(0.9);
            transform: scale(0.9);
            padding: 3px 2px 4px
        }

    .videotext-course .coding-tasklist-chapter {
        margin-bottom: 12px
    }

    .videotext-course .coding-tasklist-chapter-prefix {
        font-weight: normal;
        margin-left: 0;
        margin-right: 0;
        font-size: 16px
    }

        .videotext-course .coding-tasklist-chapter-prefix:after {
            content: ":";
            vertical-align: 1px
        }

    .videotext-course .coding-tasklist-chapter-title {
        margin-bottom: 8px;
        line-height: 16px
    }

    .videotext-course .coding-tasklist-chapter-prefix, .videotext-course .coding-tasklist-chapter-title {
        color: #767676;
        font-size: 15px
    }

    .videotext-course .coding-tasklist-chapter-hours {
        display: none
    }

    .videotext-course .coding-tasklist-chapter:last-child .coding-tasklist-subsegment:last-child {
        border-bottom: none;
        padding-bottom: 0
    }

    .videotext-course .coding-tasklist-subsegment {
        background: none;
        color: #c6c6c6;
        padding: 0;
        margin-bottom: 0
    }

    .videotext-course .coding-tasklist-subsegment-title {
        padding: 10px 2px
    }

    .videotext-course .coding-tasklist-subsegment-more {
        padding: 6px;
        right: -2px
    }

    .videotext-course .coding-tasklist-subsegment:last-child {
        border-bottom: 1px solid #292929;
        padding-bottom: 12px
    }

        .videotext-course .coding-tasklist-subsegment:last-child .coding-tasklist-task:last-child {
            border: none;
            padding-bottom: 0
        }

    .videotext-course .coding-tasklist-task {
        color: #c4c4c4;
        padding: 7px 0 8px;
        margin-left: 20px
    }

    .videotext-course .coding-tasklist-task-title {
        color: #c4c4c4
    }

    .videotext-course .coding-tasklist-task-desc {
        padding-left: 38px;
        display: block;
        font-size: 12px;
        color: #767676
    }

        .videotext-course .coding-tasklist-task-desc:before, .videotext-course .coding-tasklist-task-desc:after {
            display: none
        }

    .videotext-course .coding-tasklist-task-icon {
        font-size: 12px;
        color: #0f0f0f;
        background-color: #777;
        border-radius: 2px;
        margin-right: 2px;
        padding: 2px 3px
    }

        .videotext-course .coding-tasklist-task-icon:before {
            font-size: 0
        }

    .videotext-course .coding-tasklist-task:last-child {
        margin-bottom: 5px;
        border-bottom: 1px solid #292929;
        padding-bottom: 17px
    }

    .videotext-course .coding-tasklist-task:hover, .videotext-course .coding-tasklist-task.selected {
        color: #23b8ff
    }

        .videotext-course .coding-tasklist-task:hover .coding-tasklist-task-title, .videotext-course .coding-tasklist-task.selected .coding-tasklist-task-title {
            color: #23b8ff
        }

        .videotext-course .coding-tasklist-task:hover .coding-tasklist-task-icon, .videotext-course .coding-tasklist-task.selected .coding-tasklist-task-icon {
            background-color: #23b8ff;
            color: #0f0f0f
        }

        .videotext-course .coding-tasklist-task:hover .coding-tasklist-task-desc, .videotext-course .coding-tasklist-task.selected .coding-tasklist-task-desc {
            color: #23b8ff
        }

    .videotext-course .coding-tasklist-task.task-item-unvalid {
        color: #5f5f5f
    }

        .videotext-course .coding-tasklist-task.task-item-unvalid .coding-tasklist-task-icon {
            background-color: #5f5f5f
        }

        .videotext-course .coding-tasklist-task.task-item-unvalid .coding-tasklist-task-desc {
            color: #5f5f5f
        }

    .videotext-course .sub-section {
        margin-top: 10px;
        margin-bottom: 10px;
        position: relative
    }

    .videotext-course .sub-section--tt {
        overflow: hidden;
        -o-text-overflow: ellipsis;
        text-overflow: ellipsis;
        white-space: nowrap
    }

    .videotext-course .sub-section:after {
        content: "";
        position: absolute;
        height: 1px;
        width: 100%;
        bottom: -5px;
        background-color: #f4f4f4;
        background-color: rgba(244, 244, 244, .1)
    }

    .videotext-course .sub-section:last-child {
        margin-bottom: 0
    }

        .videotext-course .sub-section:last-child:after {
            content: none
        }

    .videotext-course .sub-section-unvalid .sub-section--tt {
        color: #5f5f5f
    }

    .videotext-course .task-item {
        display: block;
        color: #c7c7c7;
        cursor: pointer
    }

        .videotext-course .task-item:hover .task-item--type, .videotext-course .task-item.selected .task-item--type {
            background-color: #23b8ff;
            color: #0f0f0f
        }

        .videotext-course .task-item:hover .task-item--text, .videotext-course .task-item:hover .task-item--suffix, .videotext-course .task-item.selected .task-item--text, .videotext-course .task-item.selected .task-item--suffix {
            color: #23b8ff
        }

    .videotext-course .task-item--prefix {
        float: left
    }

    .videotext-course .task-item--type {
        display: block;
        -webkit-box-sizing: border-box;
        box-sizing: border-box;
        width: 30px;
        height: 16px;
        line-height: 16px;
        background-color: #777;
        border-radius: 2px;
        text-align: center;
        color: #0f0f0f;
        font-size: 12px;
        position: relative;
        top: 1px;
        padding-left: 1px
    }

    .videotext-course .task-item--tt {
        overflow: hidden;
        -o-text-overflow: ellipsis;
       /* text-overflow: ellipsis;
        white-space: nowrap*/
    }

    .videotext-course .task-item--text {
        font-size: 14px;
        color: #c7c7c7;
    /*    line-height: 20px;
        overflow: hidden;
        -o-text-overflow: ellipsis;
        text-overflow: ellipsis;
        white-space: nowrap*/
    }

    .videotext-course .task-item--suffix {
        font-size: 12px;
        line-height: 16px;
        color: #777
    }

    .videotext-course .task-item--live-label {
        color: #ff4f23;
        font-size: 12px;
        line-height: 16px;
        padding: 2px;
        border: 1px solid #ff4f23;
        border-radius: 2px;
        display: inline-block;
        -webkit-transform: scale(0.9);
        -ms-transform: scale(0.9);
        transform: scale(0.9)
    }

    .videotext-course .task-item-unvalid {
        cursor: default
    }

        .videotext-course .task-item-unvalid:hover .task-item--type {
            background-color: #5f5f5f
        }

        .videotext-course .task-item-unvalid:hover .task-item--text, .videotext-course .task-item-unvalid:hover .task-item--suffix {
            color: #5f5f5f
        }

        .videotext-course .task-item-unvalid .task-item--text {
            color: #5f5f5f
        }

        .videotext-course .task-item-unvalid .task-item--suffix {
            color: #5f5f5f
        }

        .videotext-course .task-item-unvalid .task-item--type {
            background-color: #5f5f5f
        }

    .videotext-course .section--bottom {
        width: 100%;
        min-height: 92px;
        padding: 14px 16px;
        -webkit-box-sizing: border-box;
        box-sizing: border-box;
        background-color: #232323
    }

    .videotext-course .course-action {
        float: right;
        margin: 7px 5px;
        min-width: 293px;
        text-align: center;
        position: relative
    }

        .videotext-course .course-action .btn-joined-free, .videotext-course .course-action .btn-join {
            border: none;
            outline: none;
            width: 100%;
            height: 50px;
            line-height: 50px;
            font-size: 18px
        }

        .videotext-course .course-action .btn-joined-free {
            background-color: transparent;
            color: #bbb;
            font-size: 0px;
            cursor: default
        }

            .videotext-course .course-action .btn-joined-free .i-custom-tick {
                margin-right: 12px;
                display: inline-block;
                width: 5px;
                height: 12px;
                border: 2px solid #bbb;
                border-top: none;
                border-left: none;
                -webkit-transform: rotate(45deg);
                -ms-transform: rotate(45deg);
                transform: rotate(45deg);
                vertical-align: middle
            }

            .videotext-course .course-action .btn-joined-free span {
                font-size: 16px
            }

        .videotext-course .course-action .btn-join {
            font-size: 0
        }

            .videotext-course .course-action .btn-join .icon-font {
                vertical-align: middle;
                font-size: 20px;
                margin-right: 4px
            }

            .videotext-course .course-action .btn-join span {
                vertical-align: middle;
                font-size: 18px
            }

        .videotext-course .course-action .disabled {
            background-color: #777;
            color: #bbb
        }

        .videotext-course .course-action .i-add {
            font-weight: bold
        }

    .videotext-course .tip-section {
        position: absolute;
        bottom: 0;
        left: 50%;
        -webkit-transform: translateX(-50%);
        -ms-transform: translateX(-50%);
        transform: translateX(-50%);
        -webkit-box-sizing: border-box;
        box-sizing: border-box;
        width: 100%;
        padding: 36px 20px;
        text-align: center;
        background: #fff;
        -webkit-box-shadow: 0 0 4px 0 rgba(0, 0, 0, .25);
        box-shadow: 0 0 4px 0 rgba(0, 0, 0, .25);
        border-radius: 2px;
        -webkit-transform-origin: 50% 100%;
        -ms-transform-origin: 50% 100%;
        transform-origin: 50% 100%
    }

        .videotext-course .tip-section .i-close {
            position: absolute;
            top: 12px;
            right: 14px;
            color: #bbb;
            font-size: 12px;
            line-height: 1;
            font-weight: bold;
            cursor: pointer
        }

        .videotext-course .tip-section .tip-tt {
            margin: 0;
            font-size: 20px;
            font-weight: bold
        }

        .videotext-course .tip-section .tip-bd {
            margin: 6px 0 0 0;
            font-size: 14px
        }

        .videotext-course .tip-section .tip-tt, .videotext-course .tip-section .tip-bd {
            position: relative;
            -webkit-transition: .3s .5s all cubic-bezier(0.25, 0.1, 0.25, 1);
            -o-transition: .3s .5s all cubic-bezier(0.25, 0.1, 0.25, 1);
            transition: .3s .5s all cubic-bezier(0.25, 0.1, 0.25, 1)
        }

        .videotext-course .tip-section:after {
            content: "";
            display: block;
            position: absolute;
            bottom: -8px;
            left: 48%;
            width: 0;
            height: 0;
            border-style: solid;
            border-width: 4px 6px;
            border-color: #fff transparent transparent #fff
        }

    .videotext-course .tip-section--wrapper {
        width: 293px;
        height: 126px;
        position: absolute;
        top: -138px
    }

        .videotext-course .tip-section--wrapper.inited {
            width: 0;
            height: 0
        }

            .videotext-course .tip-section--wrapper.inited .tip-section {
                width: 0;
                height: 0;
                opacity: 0
            }

            .videotext-course .tip-section--wrapper.inited .i-close {
                opacity: 0
            }

            .videotext-course .tip-section--wrapper.inited .tip-tt, .videotext-course .tip-section--wrapper.inited .tip-bd {
                bottom: -24px;
                opacity: 0
            }

        .videotext-course .tip-section--wrapper.active .tip-section {
            -webkit-transition: .3s all cubic-bezier(0, 0, 0.01, 0.99);
            -o-transition: .3s all cubic-bezier(0, 0, 0.01, 0.99);
            transition: .3s all cubic-bezier(0, 0, 0.01, 0.99);
            height: 100%;
            opacity: 1
        }

        .videotext-course .tip-section--wrapper.active .i-close, .videotext-course .tip-section--wrapper.active .tip-tt, .videotext-course .tip-section--wrapper.active .tip-bd {
            -webkit-transition: .3s .5s all cubic-bezier(0.25, 0.1, 0.25, 1);
            -o-transition: .3s .5s all cubic-bezier(0.25, 0.1, 0.25, 1);
            transition: .3s .5s all cubic-bezier(0.25, 0.1, 0.25, 1);
            opacity: 1
        }

        .videotext-course .tip-section--wrapper.active .tip-tt, .videotext-course .tip-section--wrapper.active .tip-bd {
            bottom: 0
        }

        .videotext-course .tip-section--wrapper.closed .tip-section {
            -webkit-transition: .2s all cubic-bezier(1, 0, 1, 1);
            -o-transition: .2s all cubic-bezier(1, 0, 1, 1);
            transition: .2s all cubic-bezier(1, 0, 1, 1);
            -webkit-transform: translateX(-50%) scale(0.01);
            -ms-transform: translateX(-50%) scale(0.01);
            transform: translateX(-50%) scale(0.01);
            -webkit-transform-origin: 50% 100%;
            -ms-transform-origin: 50% 100%;
            transform-origin: 50% 100%;
            opacity: 0
        }

    .videotext-course .course-info {
        max-width: 850px
    }

    .videotext-course .course-title {
        font-size: 22px;
        line-height: 32px
    }

        .videotext-course .course-title h3 {
            color: #f4f4f4;
            display: inline-block;
            max-width: 780px;
            vertical-align: top
        }

        .videotext-course .course-title .title-free {
            color: #ff4f23;
            display: inline-block;
            margin-left: 12px;
            vertical-align: top
        }

    .videotext-course .course-hints {
        margin-top: 4px;
        font-size: 12px;
        line-height: 16px
    }

        .videotext-course .course-hints .line-item {
            display: inline-block;
            margin-right: 32px;
            color: #ffffff;
            color: rgba(255, 255, 255, .5);
            vertical-align: middle
        }

            .videotext-course .course-hints .line-item:last-child {
                margin-right: 0
            }

        .videotext-course .course-hints .hint-data {
            padding-left: 6px
        }

        .videotext-course .course-hints .icon-font {
            margin-right: 4px
        }

        .videotext-course .course-hints .icon-sep {
            background: #ffffff;
            background: rgba(255, 255, 255, .5)
        }

        .videotext-course .course-hints .item--contact, .videotext-course .course-hints .item--share, .videotext-course .course-hints .item--mobile-watch {
            cursor: pointer;
            padding: 6px 0
        }

    .videotext-course .cloud-desktop-mask, .videotext-course .cloud-desktop-tip-wrap, .videotext-course .cloud-desktop-btn {
        display: none
    }

    .videotext-course.videotext-course__cloud-desktop .cloud-desktop-mask {
        position: absolute;
        display: none;
        text-align: center;
        top: 0;
        z-index: 1000;
        width: 100%;
        height: 100%;
        background-color: #000000;
        background-color: rgba(0, 0, 0, .6)
    }

    .videotext-course.videotext-course__cloud-desktop .cloud-desktop-mask__title {
        font-size: 20px;
        color: #fff;
        line-height: 28px;
        margin-bottom: 58px;
        margin: 171px 0 58px
    }

    .videotext-course.videotext-course__cloud-desktop .cloud-desktop-mask__btn {
        width: 139px;
        height: 50px;
        font-size: 18px;
        background-color: #2080f7;
        color: #fff
    }

        .videotext-course.videotext-course__cloud-desktop .cloud-desktop-mask__btn .icon-font {
            font-size: 20px
        }

    .videotext-course.videotext-course__cloud-desktop .cloud-desktop-tip-wrap {
        display: block;
        z-index: 2;
        position: absolute;
        top: -53px;
        right: 28px;
        background: #fff;
        -webkit-backdrop-filter: blur(8px);
        backdrop-filter: blur(8px);
        border-radius: 4px;
        color: #3e414d;
        font-size: 14px;
        line-height: 20px;
        padding: 12px 47px 12px 16px;
        white-space: nowrap
    }

        .videotext-course.videotext-course__cloud-desktop .cloud-desktop-tip-wrap .i-close {
            cursor: pointer;
            position: absolute;
            right: 14px
        }

        .videotext-course.videotext-course__cloud-desktop .cloud-desktop-tip-wrap:before {
            content: "";
            width: 0;
            height: 0;
            border-top: 4px solid #fff;
            border-left: 4px dashed transparent;
            border-right: 4px dashed transparent;
            position: absolute;
            right: 10%;
            bottom: -4px
        }

    .videotext-course.videotext-course__cloud-desktop .cloud-desktop-btn {
        display: inline-block;
        font-size: 18px;
        color: #2080f7;
        width: 45%;
        height: 50px;
        background: #232323;
        border: 1px solid #2080f7;
        vertical-align: middle;
        margin-left: 18px
    }

    .videotext-course.videotext-course__cloud-desktop .btn-join {
        width: 45%
    }

        .videotext-course.videotext-course__cloud-desktop .btn-join:not(.btn-joined-free) {
            background-color: #2080f7
        }
    .videotext-course .contWrapper {
        width:calc(100% - 240px);
        float:left;
    }
    .videotext-course .content {
        display:none
    }

@media screen and (min-width: 320px) and (max-width: 750px) {
    .dlkjDiv .box01 .bodyDiv {
        background-color: #e5e5e5;
    }

    section {
        padding: 0;
    }

    .videotext-course .task-list-wrapper {
        display: none;
    }

    .dlkjDiv .box01 .bodyDiv .contWrapper {
        width: 100%;
        height: 50%;
        float: unset;
    }


    .videotext-course .content {
        display: block;
        position: relative;
        background-color: #fff;
        border-radius: 0 0 12px 12px;
        overflow: hidden;
        margin-top: 20px;
        border-radius: 12px;
        font-size: 14px;
        height: 45%;
    }

    .catalog-info-wrapper {
        height: 100%;
    }

        .catalog-info-wrapper .section-tt {
            font-size: 14px;
            margin: 10px 10px 10px 10px;
        }

    .catalog-info {
        padding: 0 16px;
        width: 100%;
    }

    .collapse-wrapper {
        position: relative;
        overflow: hidden;
        height: 100%
    }

        .collapse-wrapper .collapse-content {
            margin-top: 0px;
            overflow: auto;
            height: 90%;
        }


            .collapse-wrapper .collapse-content .sub-chapter-ul {
            margin: 10px 0;
            }
    .catalog-info .sub-chapter {
        position: relative;
        padding: 5px;
        width: 100%;
        border-radius: 10px;
        background-color: #f5f6fa;
        color: #3e414d;
    }

        .catalog-info .sub-chapter .chapter-header.gray {
            color: #bbb;
        }

        .catalog-info .sub-chapter .chapter-header {
            position: relative;
            padding: 0 7 0 12px;
            width: 100%;
            border-radius: 12px;
            background-color: #f5f6fa;
            color: #3e414d;
        }

        .catalog-info .sub-chapter .task-items.hide {
            display: none;
        }

        .catalog-info .sub-chapter .task-items {
        }

    .catalog-info .hide {
        display: none !important;
    }

    .catalog-info .sub-chapter .task-items .task-item {
        line-height: 29px;
        color: #3e414d;
        position: relative;
        margin-top:0px;
    }

        .catalog-info .sub-chapter .task-items .task-item.gray, .catalog-info .sub-chapter .task-items .task-item.gray .task-content .task-des, .catalog-info .sub-chapter .task-items .task-item.gray .task-type {
            color: #c9d0d6;
        }

        .catalog-info .sub-chapter .task-items .task-item .task-link {
            color: #3e414d;
        }

        .catalog-info .sub-chapter .task-items .task-item .task-type {
            float: left;
            color: #777;
            line-height: 0;
            position: relative;
        }

        .catalog-info .sub-chapter .task-items .task-item .task-content .task-title {
            position: relative;
            display: -webkit-flex;
            display: flex;
            font-size: 14px;
            -webkit-align-items: baseline;
            align-items: baseline;
            line-height: 29px;
        }

            .catalog-info .sub-chapter .task-items .task-item .task-content .task-title .task-index {
                margin-right: 5px;
                font-weight: 700;
            }

            .catalog-info .sub-chapter .task-items .task-item .task-content .task-title .task-name {
                margin-right: 44px;
            }

        .catalog-info .sub-chapter .task-items .task-item .task-content .task-des {
            font-size: 12px;
            color: #777;
            line-height: 16px;
        }

        .catalog-info .sub-chapter .task-items .task-item.active .task-content, .catalog-info .sub-chapter .task-items .task-item.active .task-des, .catalog-info .sub-chapter .task-items .task-item.active .task-type {
            color: #2080f7;
        }
}