.studyTit {
    width: 1360px;
    margin: 32px auto 24px auto;
    font-size: 24px;
    height: 33px;
    line-height: 33px;
}

.studycon {
    width: 1360px;
    display: flex;
    flex-direction: row;
    margin: auto auto 40px auto;
    justify-content: space-between;
}



    .studycon .l > p {
        white-space: pre;
        position: absolute;
        top: 16px;
        z-index: 2;
        color: #3D7EFF;
        right: 0;
        opacity: 0.8;
        transform: translateX(100%);
        -webkit-transform: translateX(100%);
        /*color: #3D7EFF;*/
        /*right:-100%;*/
    }

        .studycon .l > p.animation {
            -webkit-animation: move 20s 1 linear;
            -moz-animation: move 20s 1 linear;
            -o-animation: move 20s 1 linear;
        }

        .studycon .l > p:hover {
            /*鼠标经过li后，动画暂停*/
            -webkit-anianimation-play-state: paused;
            animation-play-state: paused;
        }

@-webkit-keyframes move {
    to {
        transform: translateX(-266%);
        -webkit-transform: translateX(-266%);
    }
}

@keyframes move {
    to {
        transform: translateX(-266%);
        -webkit-transform: translateX(-266%);
    }
}

.studycon .l {
    width: 960px;
    height: 588px;
    background: linear-gradient(173deg, #02086C 0%, #2816AE 100%);
    border-radius: 8px;
    overflow: hidden;
    position: relative;
}

    .studycon .l > .member {
        background: rgba(0, 0, 0, 0.5);
        z-index: 5;
        width: 100%;
        top: 0;
        bottom: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        position: absolute;
        z-index: 3;
        display: flex;
    }

        .studycon .l > .member > div {
            width: 360px;
            background: #FFFFFF;
            border-radius: 8px;
            padding-top: 40px;
            display: flex;
            align-items: center;
            flex-direction: column;
            box-sizing: border-box;
        }

            .studycon .l > .member > div p {
                color: #34495E;
                font-size: 16px;
                line-height: 24px;
                text-align: center;
            }

            .studycon .l > .member > div a {
                width: 183px;
                height: 56px;
                font-size: 20px;
                color: #FFFFFF;
                display: block;
                line-height: 56px;
                text-align: center;
                background: #3D7EFF;
                border-radius: 8px;
                margin-top: 24px;
                margin-bottom: 32px;
            }

.studycon .r {
    width: 384px;
    height: 588px;
    background: #FFFFFF;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-sizing: border-box;
    padding-top: 24px;
    padding-bottom: 24px;
    justify-content: space-between;
}

.studycon.widescreen .l {
    position: relative;
    width: 1360px;
    height: 800px;
}

.studycon.widescreen .r {
    display: none;
}

.studycon.widescreen .l #AliVideoContent {
    width: 1360px !important;
    height: 800px !important;
}


.studycon.WebpageFullscreen .l {
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 123;
    height: 100%;
}

    .studycon.WebpageFullscreen .l #AliVideoContent {
        width: 100% !important;
        height: 100% !important;
        /*height: 800px !important;*/
    }

.studycon .r .top {
    flex: 1;
    width: 384px;
    box-sizing: border-box;
    padding-left: 12px;
    display: flex;
    flex-direction: column;
}

    .studycon .r .top > h3 {
        height: 22px;
        font-size: 16px;
        position: relative;
        /*padding-left: 4px;*/
        color: #34495E;
        line-height: 22px;
        z-index: 2;
        display: flex;
        align-items: center;
        justify-content: space-between;
        /*margin-bottom:11px;*/
    }

        .studycon .r .top > h3 i {
            flex: 1;
        }

        .studycon .r .top > h3::before {
            width: 16px;
            height: 16px;
            border-radius: 16px;
            position: absolute;
            left: 0;
            top: -2px;
            content: "";
            z-index: -1;
            display: none;
            background: linear-gradient(319deg, rgba(81, 217, 192, 0) 0%, #3D7EFF 100%);
        }

        .studycon .r .top > h3 span {
            margin-right: 26px;
            font-size: 16px;
            color: #34495E;
            display: flex;
            align-items: center;
        }

            .studycon .r .top > h3 span em {
                width: 36px;
                margin-left: 8px;
                height: 20px;
                box-sizing: border-box;
                background: #d9dee6;
                border-radius: 20px;
                padding: 1px 2px;
                display: block;
                cursor: pointer;
                transition: border-color 1s,background-color 1s;
            }

                .studycon .r .top > h3 span em::after {
                    display: block;
                    width: 18px;
                    height: 18px;
                    float: left;
                    content: "";
                    background: #ffffff;
                    border-radius: 18px;
                    transition: all 1s;
                }

                .studycon .r .top > h3 span em.on {
                    background: #3d7eff;
                }

                    .studycon .r .top > h3 span em.on:after {
                        float: right;
                    }

    .studycon .r .top > div {
        flex: 1;
        overflow-y: scroll;
        overflow: auto;
        overflow-x: hidden;
        max-height: 480px;
        margin-right: 6px;
    }

        .studycon .r .top > div dl {
            margin-top: 15px;
        }

        .studycon .r .top > div::-webkit-scrollbar { /*滚动条整体样式*/
            width: 10px; /*高宽分别对应横竖滚动条的尺寸*/
            height: 1px;
            border-radius: 10px;
        }

        .studycon .r .top > div::-webkit-scrollbar-thumb { /*滚动条里面小方块*/
            border-radius: 1px;
            /*-webkit-box-shadow: inset 0 0 5px rgba(0,0,0,0.2);*/
            background: #D8D8D8;
            border-radius: 10px;
        }

        .studycon .r .top > div::-webkit-scrollbar-track { /*滚动条里面轨道*/
            /*-webkit-box-shadow: inset 0 0 5px rgba(0,0,0,0.2);*/
            /*border-radius: 1px;*/
            background: #FFFFFF;
            border-radius: 10px;
        }

        .studycon .r .top > div dl dt {
            font-size: 20px;
            width: 300px;
            color: #34495E;
            font-weight: bold;
            margin-bottom: 16px;
            overflow: hidden;
            white-space: nowrap;
            text-overflow: ellipsis;
        }

        .studycon .r .top > div dl dd {
            /*height: 24px;*/
            display: flex;
            flex-direction: row;
            margin-bottom: 12px;
            justify-content: flex-start;
            align-items: center;
            font-size: 16px;
        }

            .studycon .r .top > div dl dd em {
                flex: 1;
                width: 280px;
                overflow: hidden;
                white-space: nowrap;
                text-overflow: ellipsis;
                /*padding-right: 3px;*/
            }

            .studycon .r .top > div dl dd i {
                /*width:70px;*/
                font-size: 16px;
                padding-right: 10px;
                padding-left: 8px;
                /*text-align:center;*/
                display: block;
                color: #a1abb4;
            }

            /*.studycon .r .top > div dl dd.try {
                    color: #a1abb4;
                }*/

            .studycon .r .top > div dl dd.try::before {
                width: 44px;
                height: 24px;
                content: "";
                display: block;
                margin-right: 6px;
                background: url(../images/try.png) no-repeat;
            }

            .studycon .r .top > div dl dd.active {
                color: #3D7EFF;
            }

            .studycon .r .top > div dl dd:hover {
                color: #3D7EFF;
            }
/*.studycon .r .top > div dl dd:hover {
                    color: #3D7EFF;
                }*/

.studycon .r .down {
    margin-top: 8px;
    text-align: center;
}

    .studycon .r .down p {
        height: 28px;
        font-size: 14px;
        color: #696F76;
        line-height: 28px;
    }

    .studycon .r .down a {
        width: 183px;
        height: 56px;
        line-height: 56px;
        display: block;
        background: #3D7EFF;
        font-size: 20px;
        color: #FFFFFF;
        border-radius: 8px;
        margin-bottom: 8px;
    }

.nav {
    width: 1360px;
    margin: auto auto auto auto;
}

    .nav > div {
        background: #3D7EFF;
        height: 56px;
        display: inline-flex;
        flex-direction: row;
        align-items: flex-end;
        border-radius: 8px 8px 0px 0px;
    }

        .nav > div > a {
            width: 234px;
            text-align: center;
            line-height: 56px;
            /*padding-left: 40px;
            padding-right: 40px;*/
            font-size: 24px;
            color: #FFFFFF;
        }

            .nav > div > a.catalogue {
                width: 234px;
                height: 64px;
                padding: 0;
                color: #3D7EFF;
                font-size: 24px;
                text-align: center;
                line-height: 70px;
                position: relative;
                z-index: 2;
            }

                .nav > div > a.catalogue::after {
                    width: 60%;
                    height: 100%;
                    background: #fff;
                    content: "";
                    display: block;
                    position: absolute;
                    top: 0;
                    z-index: -1;
                    box-shadow: -8px -1px 16px -2px rgba(61, 126, 255, 0.14);
                    transform: skewX(-15deg);
                    left: 0;
                    border-radius: 8px 8px 0px 0px;
                }

                .nav > div > a.catalogue::before {
                    width: 60%;
                    height: 100%;
                    background: #fff;
                    content: "";
                    z-index: -1;
                    display: block;
                    border-radius: 8px 8px 0px 0px;
                    position: absolute;
                    box-shadow: 1px -1px 16px -2px rgba(61, 126, 255, 0.14);
                    top: 0;
                    transform: skewX(15deg);
                    right: 0;
                }

            .nav > div > a:last-child {
                line-height: 50px;
            }

                .nav > div > a:last-child i {
                    font-size: 14px;
                    color: #FFFFFF;
                    position: relative;
                    top: -10px;
                    left: 5px;
                }

            .nav > div > a.evaluate {
                height: 64px;
                line-height: 72px;
                background: #FFFFFF;
                color: #3D7EFF;
                position: relative;
                box-shadow: 1px -1px 16px -2px rgba(61, 126, 255, 0.14);
                border-radius: 8px 8px 0px 0px;
            }

                .nav > div > a.evaluate::before {
                    position: absolute;
                    width: 20px;
                    top: 0;
                    left: -10px;
                    border-radius: 8px 8px 0px 0px;
                    height: 64px;
                    background: #FFFFFF;
                    content: "";
                    transform: skewX(-15deg);
                    display: block;
                }

                .nav > div > a.evaluate i {
                    color: #bdc4cb;
                }


            .nav > div > a.introduce {
                width: 234px;
                height: 64px;
                padding: 0;
                color: #3D7EFF;
                font-size: 24px;
                text-align: center;
                line-height: 70px;
                position: relative;
                z-index: 2;
                background: #FFFFFF;
                border-radius: 8px 8px 0px 0px;
                box-shadow: 1px -1px 16px -2px rgba(61, 126, 255, 0.14);
            }

                /*.nav > div > a.introduce::after {
                    width: 60%;
                    height: 100%;
                    background: #fff;
                    content: "";
                    display: block;
                    position: absolute;
                    top: 0;
                    z-index: -1;
                    box-shadow: -6px -2px 18px 0px rgba(61, 126, 255, 0.1);
                    transform: skewX(-15deg);
                    left: 0;
                    border-radius: 8px 8px 0px 0px;
                }*/

                .nav > div > a.introduce::before {
                    width: 60%;
                    height: 100%;
                    background: #fff;
                    content: "";
                    z-index: -1;
                    display: block;
                    border-radius: 8px 8px 0px 0px;
                    position: absolute;
                    /*box-shadow: -6px -2px 18px 0px rgba(61, 126, 255, 0.1);*/
                    top: 0;
                    transform: skewX(15deg);
                    right: -10px;
                }



.courseIntroduce {
    margin: auto auto 32px auto;
    width: 1360px;
    min-height: 600px;
    background: #FFFFFF;
    box-sizing: border-box;
    padding: 20px;
    position: relative;
    z-index: 2;
    border-radius: 0px 8px 8px 8px;
    display: none;
}

    .courseIntroduce img {
        display: inline-block;
    }

.courseCatalogue {
    margin: auto auto 32px auto;
    width: 1360px;
    min-height: 600px;
    position: relative;
    z-index: 2;
    background: #FFFFFF;
    border-radius: 0px 8px 8px 8px;
    box-sizing: border-box;
    padding-left: 96px;
    padding-right: 96px;
    padding-top: 22px;
    display: none;
}

    .courseCatalogue dl {
        padding-top: 25px;
        padding-bottom: 25px;
        border-bottom: 1px solid rgba(52, 73, 94, 0.1);
    }

        .courseCatalogue dl:last-child {
            border-bottom: none;
        }

    .courseCatalogue dt {
        height: 28px;
        font-size: 20px;
        margin-bottom: 10px;
        color: #34495E;
        line-height: 28px;
        font-weight: bold;
    }

    .courseCatalogue dd {
        margin-bottom: 14px;
        height: 24px;
        font-size: 16px;
        font-weight: bold;
        color: #34495E;
        line-height: 24px;
        display: flex;
        align-items: center;
        flex-direction: row;
        cursor: pointer;
    }

        .courseCatalogue dd.try::after {
            width: 44px;
            height: 24px;
            content: "";
            margin-left: 12px;
            display: block;
            background: url(../images/try.png) no-repeat;
        }

        .courseCatalogue dd:hover {
            color: #3D7EFF;
        }

        .courseCatalogue dd.active {
            color: #3D7EFF;
        }

        .courseCatalogue dd a:hover {
            color: #3D7EFF;
        }

.courseEvaluation {
    width: 1360px;
    min-height: 600px;
    /*background: #FFFFFF;*/
    margin: auto auto 50px auto;
    /*border-radius: 0px 8px 8px 8px;*/
    /*display: none;*/
}

    .courseEvaluation .star {
        height: 68px;
        padding-left: 96px;
        padding-right: 96px;
        padding-top: 40px;
        background: #FFFFFF;
        border-radius: 0px 8px 0px 0px;
        position: relative;
        z-index: 2;
        display: flex;
        align-items: center;
        justify-content: flex-start;
    }

        .courseEvaluation .star span {
            margin-right: 14px;
            font-size: 48px;
            font-weight: 600;
            color: #FFA200;
        }

        .courseEvaluation .star > div {
            display: flex;
            height: 68px;
            flex-direction: column;
            justify-content: space-around;
            align-items: flex-start;
        }

            .courseEvaluation .star > div p {
                height: 28px;
                font-size: 14px;
                color: #696F76;
                display: flex;
                align-items: center;
                justify-content: flex-start;
            }

                .courseEvaluation .star > div p i {
                    width: 26px;
                    height: 26px;
                    margin-right: 7px;
                    background: url(../images/starLight.png) no-repeat;
                }

                    .courseEvaluation .star > div p i.empty {
                        background: url(../images/star.png) no-repeat;
                    }

                    .courseEvaluation .star > div p i.halfstar {
                        background: url(../images/halfstar.png) no-repeat;
                    }


    .courseEvaluation .list {
        padding: 32px 96px;
        display: flex;
        flex-direction: row;
        background: #FFFFFF;
        position: relative;
        border-radius: 0 0 8px 8px;
    }

        .courseEvaluation .list#publish {
            padding-bottom: 60px;
        }

.wordsNum {
    width: 456px;
    left: 176px;
    bottom: 10px;
    height: 48px;
    line-height: 48px;
    position: absolute;
}

.wordsNum.warning {
    color: #FF445B;
}

.courseEvaluation .list:not(:first-child)::after {
    height: 1px;
    width: 1168px;
    background: rgba(52, 73, 94, 0.1);
    border-radius: 1px;
    content: "";
    /*display: none;*/
    top: 0;
    left: 50%;
    margin-left: -584px;
    position: absolute;
}

.courseEvaluation .list .left {
    width: 56px;
    height: 56px;
    margin-right: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

    .courseEvaluation .list .left em {
        width: 64px;
        color: #34495E;
        font-size: 16px;
        margin-top: 8px;
        font-weight: bold;
        text-align: center;
    }


    .courseEvaluation .list .left img {
        width: 100%;
        height: 100%;
    }

.courseEvaluation .list .right {
    flex: 1;
    display: flex;
    flex-direction: column;
}


    .courseEvaluation .list .right .nametime {
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        color: #34495E;
    font-size: 16px;
    font-weight: bold;
    }

        .courseEvaluation .list .right .nametime q {
            flex: 1;
            font-weight: 400;
            color: #a1abb4;
            line-height: 20px;
            font-size: 14px;
            margin-left: 5px;
            position: relative;
        }

            .courseEvaluation .list .right .nametime q::after, .courseEvaluation .list .right .nametime q:before {
                content: "";
            }

            .courseEvaluation .list .right .nametime q.fireworks::after {
                width: 150px;
                height: 40px;
                display: block;
                position: absolute;
                top: 50%;
                left: -153px;
                margin-top: -20px;
                animation: fireworks 1.5s 1 forwards;
                animation-timing-function: steps(1);
            }


        .courseEvaluation .list .right .nametime span {
            height: 38px;
            display: flex;
            align-items: center;
            flex-direction: row;
            justify-content: flex-start;
            color: #34495E;
            font-size: 16px;
            font-weight: bold;
        }

            .courseEvaluation .list .right .nametime span i {
                width: 24px;
                height: 24px;
                margin-right: 5px;
                margin-top: 2px;
                display: block;
                background: url(../images/star0729.png) no-repeat;
            }

                .courseEvaluation .list .right .nametime span i.empty {
                    background: url(../images/emptystar0729.png) no-repeat;
                }

                .courseEvaluation .list .right .nametime span i.halfstarsmall {
                    width: 24px;
                    height: 24px;
                    background: url(../images/halfstar0729.png) no-repeat;
                    background-size: 100% 100%;
                    position: relative;
                }

        .courseEvaluation .list .right .nametime em {
            color: #696F76;
            font-size: 14px;
            font-weight:normal;
        }

        .courseEvaluation .list .right .nametime #xxspan {
            position: relative;
            z-index:3;
        }

            .courseEvaluation .list .right .nametime #xxspan.empty::after {
                width: 144px;
                content: "嘿！点个赞再走！";
                position: absolute;
                top: 40px;
                left: 2px;
                font-size: 14px;
                height: 36px;
                line-height: 36px;
                text-align: center;
                color: #FFFFFF;
                border-radius: 5px;
                background: rgba(0, 0, 0, 0.7);
            }

            .courseEvaluation .list .right .nametime #xxspan.empty::before {
                width: 0;
                height: 0;
                content:"";
                display:block;
                top:30px;
                left:20px;
                position:absolute;
                border-left: 5px solid transparent;
                border-right: 5px solid transparent;
                border-bottom: 10px solid rgba(0, 0, 0, 0.7);
            }

    .courseEvaluation .list .right > p {
        font-size: 16px;
        color: #34495E;
        line-height: 28px;
    }

    .courseEvaluation .list .right > span {
        color: #3D7EFF;
        margin-top: 20px;
        font-size: 16px;
        font-weight: bold;
        margin-bottom: 8px;
    }

    .courseEvaluation .list .right textarea {
        margin-top: 16px;
        width: 100%;
        height: 144px;
        background: rgba(52, 73, 94, 0.03);
        border-radius: 8px;
        resize: none;
        box-sizing: border-box;
        padding: 16px;
        color: #34495E;
        font-size: 16px;
        line-height: 28px;
        border: 1px solid #3D7EFF;
    }

        .courseEvaluation .list .right textarea::-webkit-input-placeholder {
            color: #929da8;
        }

.courseEvaluation .loadingstatus {
    width: auto;
    background: none;
    padding: 0;
    margin: 0;
    height: 80px;
    flex-direction: row;
    display: flex;
    align-items: center;
    justify-content: center;
}

.courseEvaluation .list .publishComment {
    width: 120px;
    height: 144px;
    background: #3D7EFF;
    border-radius: 8px;
    margin-left: 24px;
    margin-top: 54px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #FFFFFF;
    line-height: 33px;
    cursor: pointer;
}

.courseEvaluation .loadingstatus.more {
    cursor: pointer;
}

.courseEvaluation .more::before {
    content: "点击显示更多";
    font-size: 16px;
    color: #a3adb8;
}

.courseEvaluation .more::after {
    width: 17px;
    height: 10px;
    content: "";
    display: block;
    margin-left: 6px;
    background: url(../images/showmore.png) no-repeat;
}

.courseEvaluation .loading::after {
    content: "加载中…";
    font-size: 16px;
    color: #a3adb8;
}

.courseEvaluation .loading::before {
    width: 20px;
    height: 20px;
    content: "";
    display: block;
    margin-right: 8px;
    background: url(../images/loading.svg) no-repeat;
}

.courseEvaluation .nomore::before {
    content: "没有更多内容了";
    font-size: 16px;
    color: #a3adb8;
}

/*播放器样式*/
.prism-controlbar-bg {
    background: #000000 !important;
    opacity: 0.98;
}

.rate-list {
    background: #000000 !important;
}

    .rate-list li:hover {
        background: #333333 !important;
    }

.prism-volume-control {
    background: #000000 !important;
}

.prism-setting-list {
    background: #000000 !important;
}

/*.prism-player .prism-controlbar {
    display: block !important;
}*/

.prism-player .prism-fullscreen-btn {
    width: 30px !important;
    height: 30px !important;
}

#Widescreen {
    width: 31px;
    height: 31px;
    float: right;
    margin-right: 15px;
    background: url(../images/Widescreen.png?0519) no-repeat;
    background-size: 100% 100%;
    margin-top: 8px;
    position: relative;
    cursor: pointer;
}

    #Widescreen.active {
        background: url(../images/outWidescreen.png?0519) no-repeat;
        background-size: 100% 100%;
    }

    #Widescreen::after {
        background: #3d4042;
        height: 28px;
        line-height: 28px;
        width: 32px;
        font-size: 10px;
        left: 50%;
        margin-left: -18px;
        position: absolute;
        display: none;
        /*content: attr(data-tit);*/
        content: "宽屏";
        top: -50px;
        color: #fff;
        text-align: center;
    }

.prism-player .prism-fullscreen-btn:hover {
    animation: none !important;
}

#Widescreen:hover::after {
    display: block;
}

#Widescreen.active::after {
    width: 50px;
    margin-left: -25px;
    content: "退出宽屏";
}


#WebPageFullScreen {
    width: 31px;
    height: 31px;
    float: right;
    margin-right: 15px;
    margin-top: 8px;
    cursor: pointer;
    background: url(../images/WebPageFullScreen.png?0519) no-repeat;
    background-size: contain;
    position: relative;
}

    #WebPageFullScreen.active {
        background: url(../images/outWebPageFullScreen.png?0519) no-repeat;
        background-size: contain;
    }


    #WebPageFullScreen::after {
        background: #3d4042;
        height: 28px;
        line-height: 28px;
        width: 56px;
        font-size: 10px !important;
        left: 50%;
        margin-left: -28px;
        position: absolute;
        display: none;
        box-sizing: border-box;
        content: "网页全屏";
        /*content: attr(data-tit);*/
        top: -53px;
        color: #fff;
        text-align: center;
    }


.nextsectionBtn {
    width: 25px;
    height: 25px;
    float: left;
    margin-right: 5px;
    margin-left: 10px;
    margin-top: 11.5px;
    cursor: pointer;
    background: url(../images/nextsectionIcon.png?0519) no-repeat;
    background-size: contain;
    position: relative;
}

    .nextsectionBtn.active {
        background: url(../images/nextsectionIcon.png?0519) no-repeat;
        background-size: contain;
    }


    .nextsectionBtn::after {
        background: #3d4042;
        height: 28px;
        line-height: 28px;
        width: 56px;
        font-size: 10px !important;
        left: 50%;
        margin-left: -28px;
        position: absolute;
        display: none;
        box-sizing: border-box;
        content: "下一节";
        /*content: attr(data-tit);*/
        top: -53px;
        color: #fff;
        text-align: center;
    }

    .nextsectionBtn:hover::after {
        display: block;
    }



#WebPageFullScreen.active::after {
    width: 80px;
    margin-left: -40px;
    content: "退出网页全屏";
}

/*#WebPageFullScreen:hover {
        animation: hoverAnimationScale 1s 1;
        -moz-animation: hoverAnimationScale 1s 1;
        -webkit-animation: hoverAnimationScale 1s 1;
        -o-animation: hoverAnimationScale 1s 1;
        cursor: pointer;
    }*/

#WebPageFullScreen:hover::after {
    display: block;
}


.videocatalogue {
    position: relative;
    float: right;
    height: 26px;
    top: 11px;
    /*background: #f00;*/
    margin-left: 6px;
    /*padding-right: 10px;*/
    margin-right: 25px;
    display: none;
}

    .videocatalogue > div {
        position: absolute;
        bottom: 55px;
        width: 384px;
        height: 560px;
        left: 50%;
        /*left:-32%;*/
        margin-left: -192px;
        background: rgba(0, 0, 0, 0.9);
        border-radius: 8px;
        padding-top: 24px;
        box-sizing: border-box;
        padding-left: 12px;
        display: none;
        flex-direction: column;
    }
        /*.videocatalogue > div::after{
         width:100%;
         height:30px;
         background:#3D7EFF;
         position:absolute;
         bottom:-30px;
         content:"";
         display:block;
         left:0;
     }*/

        .videocatalogue > div > h3 {
            height: 22px;
            font-size: 16px;
            position: relative;
            /*padding-left: 4px;*/
            color: #fcfcfc;
            line-height: 22px;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            /*margin-bottom:11px;*/
        }

            .videocatalogue > div > h3 i {
                color: #77777d;
                font-size: 14px;
                flex: 1;
            }

            .videocatalogue > div > h3 span {
                margin-right: 26px;
                font-size: 16px;
                color: #fff;
                display: flex;
                align-items: center;
            }

                .videocatalogue > div > h3 span em {
                    width: 36px;
                    margin-left: 8px;
                    height: 20px;
                    box-sizing: border-box;
                    background: #d9dee6;
                    border-radius: 20px;
                    padding: 1px 2px;
                    display: block;
                    cursor: pointer;
                    transition: border-color 1s,background-color 1s;
                }

                    .videocatalogue > div > h3 span em::after {
                        display: block;
                        width: 18px;
                        height: 18px;
                        float: left;
                        content: "";
                        background: #ffffff;
                        border-radius: 18px;
                        transition: all 1s;
                    }

                    .videocatalogue > div > h3 span em.on {
                        background: #3d7eff;
                    }

                        .videocatalogue > div > h3 span em.on:after {
                            float: right;
                        }

        .videocatalogue > div > div {
            flex: 1;
            overflow-y: scroll;
            overflow: auto;
            overflow-x: hidden;
            max-height: 500px !important;
            margin-right: 6px;
        }

            .videocatalogue > div > div dl {
                margin-top: 15px;
            }

            .videocatalogue > div > div::-webkit-scrollbar { /*滚动条整体样式*/
                width: 10px; /*高宽分别对应横竖滚动条的尺寸*/
                height: 1px;
                border-radius: 10px;
            }

            .videocatalogue > div > div::-webkit-scrollbar-thumb { /*滚动条里面小方块*/
                border-radius: 1px;
                /*-webkit-box-shadow: inset 0 0 5px rgba(0,0,0,0.2);*/
                background: #42424a;
                border-radius: 10px;
            }

            .videocatalogue > div > div::-webkit-scrollbar-track { /*滚动条里面轨道*/
                /*-webkit-box-shadow: inset 0 0 5px rgba(0,0,0,0.2);*/
                /*border-radius: 1px;*/
                /*background: #FFFFFF;*/
                background: rgba(0, 0, 0, 0.9);
                border-radius: 10px;
            }

            .videocatalogue > div > div dl dt {
                font-size: 20px;
                width: 300px;
                color: #FFFFFF;
                font-weight: bold;
                margin-bottom: 16px;
                overflow: hidden;
                white-space: nowrap;
                text-overflow: ellipsis;
            }

            .videocatalogue > div > div dl dd {
                /*height: 24px;*/
                display: flex;
                flex-direction: row;
                margin-bottom: 12px;
                justify-content: flex-start;
                align-items: center;
                font-size: 16px;
            }

                .videocatalogue > div > div dl dd em {
                    flex: 1;
                    width: 280px;
                    overflow: hidden;
                    white-space: nowrap;
                    color: #fff;
                    text-overflow: ellipsis;
                    /*padding-right: 3px;*/
                }

                .videocatalogue > div > div dl dd i {
                    /*width:70px;*/
                    font-size: 16px;
                    padding-right: 10px;
                    padding-left: 8px;
                    /*text-align:center;*/
                    display: block;
                    color: #77777d;
                }

                /*.studycon .r .top > div dl dd.try {
                    color: #a1abb4;
                }*/

                .videocatalogue > div > div dl dd.try::before {
                    width: 44px;
                    height: 24px;
                    content: "";
                    display: block;
                    margin-right: 6px;
                    background: url(../images/try.png) no-repeat;
                }

                .videocatalogue > div > div dl dd.active em {
                    color: #3D7EFF;
                }

                .videocatalogue > div > div dl dd:hover em {
                    color: #3D7EFF;
                }

                .videocatalogue > div > div dl dd.active i {
                    color: #1d387a;
                }

                .videocatalogue > div > div dl dd:hover i {
                    color: #1d387a;
                }

    /*.videocatalogue:hover > div {
        display: flex;
    }*/

    .videocatalogue > b {
        color: #FFFFFF;
        font-size: 16px;
        cursor: pointer;
        font-weight: 400;
        display: block;
        margin-top: 0px;
    }


.nextSectionLayer {
    position: absolute;
    width: 100%;
    top: 0;
    background: rgba(0, 0, 0, 0.85);
    /*bottom: 44px;*/
    bottom: 0;
    z-index: 2000;
    display: flex;
    display: none;
    align-items: center;
    flex-direction: column;
    justify-content: center;
}

    .nextSectionLayer > span {
        width: 94px;
        height: 94px;
        background: url(../images/praise/finish1x_14.png) no-repeat;
        animation: run 1s 1 forwards;
        animation-timing-function: steps(1);
    }

@keyframes run {
    0% {
        background: url(../images/praise/finish1x_00.png) no-repeat;
    }

    7% {
        background: url(../images/praise/finish1x_01.png) no-repeat;
    }

    14% {
        background: url(../images/praise/finish1x_02.png) no-repeat;
    }

    21% {
        background: url(../images/praise/finish1x_03.png) no-repeat;
    }

    28% {
        background: url(../images/praise/finish1x_04.png) no-repeat;
    }

    35% {
        background: url(../images/praise/finish1x_05.png) no-repeat;
    }

    42% {
        background: url(../images/praise/finish1x_06.png) no-repeat;
    }

    49% {
        background: url(../images/praise/finish1x_07.png) no-repeat;
    }

    56% {
        background: url(../images/praise/finish1x_08.png) no-repeat;
    }

    63% {
        background: url(../images/praise/finish1x_09.png) no-repeat;
    }

    70% {
        background: url(../images/praise/finish1x_10.png) no-repeat;
    }

    77% {
        background: url(../images/praise/finish1x_11.png) no-repeat;
    }

    84% {
        background: url(../images/praise/finish1x_12.png) no-repeat;
    }

    91% {
        background: url(../images/praise/finish1x_13.png) no-repeat;
    }

    100% {
        background: url(../images/praise/finish1x_14.png) no-repeat;
    }
}

.nextSectionLayer > h3 {
    height: 33px;
    font-size: 24px;
    font-weight: 800;
    color: #FFFFFF;
    margin-bottom: 16px;
    line-height: 33px;
}

.nextSectionLayer > p {
    height: 24px;
    font-size: 16px;
    font-weight: 400;
    color: #FFFFFF;
    margin-bottom: 40px;
}

.nextSectionLayer > div {
    width: 220px;
    height: 56px;
    background: #3D7EFF;
    border-radius: 8px;
    font-size: 20px;
    font-weight: 800;
    color: #FFFFFF;
    line-height: 56px;
    cursor: pointer;
    text-align: center;
}

@keyframes fireworks {
    0% {
        background: url(../images/fireworks/烟花_00.png) no-repeat;
    }

    6% {
        background: url(../images/fireworks/烟花_02.png) no-repeat;
    }

    12% {
        background: url(../images/fireworks/烟花_03.png) no-repeat;
    }

    18% {
        background: url(../images/fireworks/烟花_04.png) no-repeat;
    }

    24% {
        background: url(../images/fireworks/烟花_05.png) no-repeat;
    }

    30% {
        background: url(../images/fireworks/烟花_06.png) no-repeat;
    }

    36% {
        background: url(../images/fireworks/烟花_07.png) no-repeat;
    }

    42% {
        background: url(../images/fireworks/烟花_08.png) no-repeat;
    }

    48% {
        background: url(../images/fireworks/烟花_09.png) no-repeat;
    }

    54% {
        background: url(../images/fireworks/烟花_10.png) no-repeat;
    }

    60% {
        background: url(../images/fireworks/烟花_11.png) no-repeat;
    }

    72% {
        background: url(../images/fireworks/烟花_12.png) no-repeat;
    }

    78% {
        background: url(../images/fireworks/烟花_13.png) no-repeat;
    }

    84% {
        background: url(../images/fireworks/烟花_14.png) no-repeat;
    }

    90% {
        background: url(../images/fireworks/烟花_15.png) no-repeat;
    }

    96% {
        background: url(../images/fireworks/烟花_16.png) no-repeat;
    }

    100% {
        background: url(../images/fireworks/烟花_16.png) no-repeat;
    }
}