.iframe-container[data-v-487a7661]{width:100%;height:100vh;display:flex;flex-direction:column;overflow:hidden;background-color:#f7f8fa}.header-nav[data-v-487a7661]{flex-shrink:0}.iframe-wrapper[data-v-487a7661]{flex:1;width:100%;position:relative;overflow:hidden}.activity-iframe[data-v-487a7661]{width:100%;height:100%;display:block;border:none}.icon_back[data-v-487a7661]{width:6.13333vw;height:6.13333vw}