.tc-player[data-v-358adde5]{background:#333}.back_text[data-v-7f9460f8]{color:#333;margin-left:10px;font-size:16px;cursor:pointer;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}#learnApp[data-v-7f9460f8]{background:#f7f7f7}.left_img[data-v-7f9460f8]{width:20px;height:25px}.left_back[data-v-7f9460f8]{margin-left:20px;margin-top:7px}.title[data-v-7f9460f8]{margin:20px auto;display:-webkit-box;display:flex;border-radius:5px;width:1200px;line-height:44px;height:44px;background:#fff}.list_item_title[data-v-7f9460f8]{padding-left:20px;width:250px;height:auto;line-height:30px}.list_item[data-v-7f9460f8]{position:relative;display:-webkit-box;display:flex;height:auto;margin-top:10px;margin-bottom:10px;line-height:30px;cursor:pointer;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.list_item.list_item_active[data-v-7f9460f8]{color:#4381fb}.list_item.list_item_nolearn[data-v-7f9460f8]{color:#b2b2b2}.video_content[data-v-7f9460f8]{position:relative;width:1200px;height:100%;display:-webkit-box;display:flex;margin:auto}.video_list[data-v-7f9460f8]{border-left:1px solid #000;padding-top:10px;width:290px;overflow-y:auto;height:560px;background:#333;color:#999;margin:auto}.video_list[data-v-7f9460f8]::-webkit-scrollbar{width:8px;height:auto}.video_list[data-v-7f9460f8]::-webkit-scrollbar-thumb{background-color:#707070;border-radius:32px}.video_list[data-v-7f9460f8]::-webkit-scrollbar-track{background-color:#333;border-radius:32px}.video_box[data-v-7f9460f8]{position:relative;width:910px;margin:auto}.cover[data-v-7f9460f8]{position:absolute;top:0;left:0;width:910px;height:570px;z-index:1900;cursor:pointer}