.classroom-container[data-v-7c1845af]{width:100%;height:100vh;background:#000;overflow:hidden}.loading-overlay[data-v-7c1845af]{padding:50px;background:#fff;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center}.loading-text[data-v-7c1845af]{margin-top:20px;color:#909399}