.mb-5[data-v-c80d8c76],.mb-5[data-v-d741a1c6]{margin-bottom:5px}.video-preview[data-v-4b96128c]{margin-top:16px}.video-item[data-v-4b96128c]{display:flex;align-items:flex-start;gap:12px;margin-bottom:16px}.video-player[data-v-4b96128c]{width:240px;height:135px;border-radius:4px;border:1px solid #dcdfe6}.delete-btn[data-v-4b96128c]{margin-top:4px}.el-upload-dragger[data-v-4b96128c]{width:100%}.btn-row[data-v-7b27ec04]{display:flex;justify-content:flex-end}.practice-title[data-v-7b27ec04]{font-size:18px;font-weight:700;padding-bottom:5px}.expand-btn[data-v-7b27ec04]{width:100%;display:flex;justify-content:flex-start}.card-item[data-v-7b27ec04]{margin-bottom:5px;cursor:move}.hide-overflow[data-v-7b27ec04]{height:160px;overflow-y:hidden}.flex[data-v-7b27ec04]{display:flex;align-items:center;justify-content:space-between}.tab-pane-item{height:500px}