body {
    background: #f2f2f2 !important;
    font-size: 14px !important;
}
.tabcont dl, .tabcont ol, .tabcont ul,.tabcont .h1, .tabcont .h2, .tabcont .h3, .tabcont .h4, .tabcont .h5, .tabcont .h6, .tabcont h1, .tabcont h2, .tabcont h3, .tabcont h4, .tabcont h5, .tabcont h6{
    margin-bottom: 0;
}
.positionbox {
    background: #282828;
}

.position {
    width: 1200px;
    margin: auto;
    padding: 15px 0;
    font-size: 16px;
    color: #bbbbbb;
}

.position a {
    color: #bbbbbb;
}

.videobox {
    background: #191919;
    padding: 63px 0 60px;
    margin-bottom: 80px;
}

.videobox .v_video {
    width: 1200px;
    margin: auto;
}

.videobox .v_video .left {
    width: 920px;
    float: left;
}

.videobox .v_video .left .palyer {
    height: 518px;
}

.videobox .v_video .left .palyer .video {
    position: relative;
}

.videobox .v_video .right .record {
    position: absolute;
    z-index: 99;
    bottom: -50px;
    width: 450px;
    height: 50px;
    line-height: 50px;
    left: -450px;
    text-align: right;
    color: #dddddd;
    font-size: 14px;
}

.videobox .v_video .right .record span,
.videobox .v_video .right .record a {
    color: #166ee0;
    cursor: pointer;
    padding: 0 2px;
}

.videobox .v_video .right {
    width: 280px;
    height: 518px;
    float: left;
    background: #2d2d2d;
    position: relative;
}

.videobox .v_video .right .title {
    width: 1200px;
    font-size: 18px;
    color: #eeeeee;
    padding: 15px 0;
    position: absolute;
    top: -48px;
    left: -920px;
}

.videobox .v_video .right .down {
    background: none;
    padding: 15px;
    height: 50px;
    /* width: 320px; */
    position: absolute;
    bottom: -50px;
    left: -920px;
}

.videobox .v_video .right .down img {
    height: 20px;
    width: auto;
    float: left;
    margin-right: 6px;
}

.videobox .v_video .right .down span {
    color: #dddddd;
    float: left;
    margin-right: 30px;
}

.videobox .v_video .right .tab {
    border-bottom: solid 1px #323232;
    color: #999999;
}

.videobox .v_video .right .tab span {
    display: block;
    float: left;
    padding: 12px 0;
    margin-left: 20px;
    cursor: pointer;
}

.videobox .v_video .right .tab span.active {
    color: #ffffff;
    border-bottom: solid 1px #166ee0;
}

.videobox .v_video .right .tabcont {
    height: 474px;
    overflow-y: auto;
}

.videobox .v_video .right .tabcont .chapter .chap {
    border-bottom: solid 1px #323232;
}

.videobox .v_video .right .tabcont .chapter h1 {
    background-color: none;
    background-image: url(/img/pc/video/chapter_title.png);
    background-repeat: no-repeat;
    background-position: 20px 18px;
    padding: 13px 20px 13px 40px;
    color: #ffffff;
    cursor: pointer;
    font-size: 14px;
}

.videobox .v_video .right .tabcont .chapter .section {
    background-color: #181818;
    color: #B1B1B1;
    padding: 10px 0;
}

.videobox .v_video .right .tabcont .chapter .section li {
    background-image: url(/img/pc/video/section_title.png);
    background-repeat: no-repeat;
    background-position: 16px 9px;
    background-size: 16px 15px;
    padding: 8px 10px 4px 45px;
    cursor: pointer;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.videobox .v_video .right .tabcont p {
    color: #999999;
    line-height: 26px;
    padding: 10px 20px 0;
}

.videobox .v_video .right .tabcont button {
    display: block;
    margin: 50px auto;
    width: 200px;
    height: 40px;
    color: #ffffff;
    background: #166ee0;
    border: none;
    outline: none;
    border-radius: 4px;
    cursor: pointer;
}

.videobox .v_video .right .tabcont button:active {
    opacity: 0.7;
}

.videobox .v_video .right .tabcont::-webkit-scrollbar {
    /*滚动条整体样式*/
    width: 2px;
    /*高宽分别对应横竖滚动条的尺寸*/
    height: 1px;
}

.videobox .v_video .right .tabcont::-webkit-scrollbar-thumb {
    /*滚动条里面小方块*/
    border-radius: 5px;
    box-shadow: inset 0 0 5px #646464;
    background: #696969;
}

.videobox .v_video .right .tabcont::-webkit-scrollbar-track {
    /*滚动条里面轨道*/
    box-shadow: inset 0 0 5px #2d2d2d;
    border-radius: 5px;
    background: #2d2d2d;
}

.videobox .v_video .right .tabcont.active_cont {
    display: block;
}

.message {
    width: 1200px;
    margin: 0 auto 80px;
    background: #ffffff;
    border-radius: 4px;
    /* 补充 */
    width: 95%;
    max-width: 1200px;
}

.message .title {
    font-size: 18px;
    color: #333333;
    border-bottom: solid 1px #eeeeee;
    padding: 20px;
}

.message .write {
    padding: 20px;
}

.message .write textarea {
    display: block;
    width: 100%;
    height: 120px;
    border-radius: 4px;
    border: solid 1px #dddddd;
    background: #f2f2f2;
    padding: 10px 16px;
    resize: none;
    float: left;
    margin-bottom: 15px;
}

.message .write p {
    float: left;
    color: #666666;
    line-height: 32px;
    cursor: pointer;
}

.message .write button {
    display: block;
    float: right;
    width: 100px;
    height: 32px;
    background: #E7F0FB;
    border-radius: 5px;
    color: #166EE0;
    border: none;
    outline: none;
    cursor: pointer;
}

.message .write button:hover {
    background: #166ee0;
    color: #ffffff;
}

.message .comment {
    padding: 0 20px;
}

.message .comment .review {
    border-bottom: solid 1px #eeeeee;
    padding: 25px 0;
    /* 补充 */
    display: flex;
}

.message .comment .review .avatar {
    width: 32px;
    height: 32px;
    border-radius: 46px;
    /* overflow: hidden; */
    float: left;
}

.message .comment .review .avatar img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
}

.message .comment .review .re_cont {
    /* width: 1120px; */
    max-width: 1120px;
    width: 100%;
    float: left;
    padding-left: 20px;
}

.message .comment .review .re_cont .stu_name {
    margin-bottom: 10px;
    padding-top: 6px;
}

.message .comment .review .re_cont .stu_name h1 {
    float: left;
    font-size: 16px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
}

.message .comment .review .re_cont .stu_name span {
    float: right;
    color: #999999;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
}

.message .comment .review .re_cont p {
    color: #666666;
    margin-bottom: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
/* 补充 */
p,h1, h2, h3, h4, h5, h6{
    margin-bottom: 0 !important;
}