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.coll-box.el-collapse{border:0}.course-detail-info .coll-box.el-collapse .coll-item-title .sec-status-icon{margin-right:.51rem;font-size:.78rem}.course-detail-info .coll-box.el-collapse .coll-item-title .txt{font-size:.78rem;font-weight:600}.course-detail-info .coll-box.el-collapse .el-collapse-item .el-collapse-item__wrap{background:none;border:0}.course-detail-info .coll-box.el-collapse .el-collapse-item .el-collapse-item__wrap .it-intro.it{padding-left:1.02rem}.course-detail-info .coll-box.el-collapse .el-collapse-item .el-collapse-item__header{background:none;border:0;text-align:center;font-size:.7rem;-webkit-box-pack:start;-ms-flex-pack:start;justify-content:flex-start;position:relative;padding:.51rem 0}.course-detail-info .coll-box.el-collapse .el-collapse-item .el-collapse-item__header 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.it-name{width:100%}.course-detail-info .coll-box.el-collapse .el-collapse-item .coll-content-box .coll-item .it{padding:.51rem;padding-left:1.02rem}.course-detail-info .coll-box.el-collapse .el-collapse-item .coll-content-box .coll-item .it-name.it{padding-left:2.5rem}.course-detail-info .coll-box.el-collapse .txt{font-size:.7rem}.subject-model-type-opacity.button.type-1{background:url(https://assets.19x19.com0.4) no-repeat;background-size:100% 100%;background:rgba(65,102,146,.4)}.subject-model-type-opacity.button.type-2{background:url(https://assets.19x19.com0.5) no-repeat;background-size:100% 100%;background:rgba(65,102,146,.5)}.subject-model-type-opacity.button.type-3{background:url(https://assets.19x19.com0.6) no-repeat;background-size:100% 100%;background:rgba(65,102,146,.6)}.subject-model-type-opacity.button.type-4{background:url(https://assets.19x19.com0.7) no-repeat;background-size:100% 100%;background:rgba(65,102,146,.7)}.subject-model-type-opacity.page.type-1{background:url(https://assets.19x19.com0.15) no-repeat;background-size:100% 100%;background:rgba(65,102,146,.15)}.subject-model-type-opacity.page.type-2{background:url(https://assets.19x19.com0.25) no-repeat;background-size:100% 100%;background:rgba(65,102,146,.25)}.subject-model-type-opacity.page.type-3{background:url(https://assets.19x19.com0.35) no-repeat;background-size:100% 100%;background:rgba(65,102,146,.35)}.subject-model-type-opacity.page.type-4{background:url(https://assets.19x19.com0.45) no-repeat;background-size:100% 100%;background:rgba(65,102,146,.45)}.video-list{padding:1.02rem;width:90%;margin:0 auto}.video-list .course-list-banner .banner-item{position:relative;overflow:hidden}.video-list .course-list-banner .banner-item img{width:100%;float:left}.video-list .course-list-banner .banner-item .buy-box{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:end;-ms-flex-align:end;align-items:flex-end;position:absolute;right:8.98rem;bottom:1.48rem}.video-list .course-list-banner .banner-item .buy-box .el-button{width:6.99rem;height:1.72rem;border:0}.video-list .course-list-banner .banner-item .buy-box .el-button.el-button--text{width:auto;height:auto;margin-left:.51rem;border-bottom:1px solid #fff;color:#fff;padding:0;padding-bottom:.12rem}.video-list .course-video-list{margin-top:1.02rem}.video-list .course-teacher-info{padding-bottom:1.99rem}