.iku-backtop{--iku-backtop-bg-color:var(--iku-bg-color-overlay);--iku-backtop-text-color:var(--iku-color-primary);--iku-backtop-hover-bg-color:var(--iku-border-color-extra-light);align-items:center;background-color:var(--iku-backtop-bg-color);border-radius:50%;box-shadow:var(--iku-box-shadow-lighter);color:var(--iku-backtop-text-color);cursor:pointer;display:flex;font-size:20px;height:40px;justify-content:center;position:fixed;width:40px;z-index:5}.iku-backtop:hover{background-color:var(--iku-backtop-hover-bg-color)}.iku-backtop__icon{font-size:20px}.iku-backtop[data-v-5b4edb64]{height:52px;width:52px}.iku-backtop .back-top-content[data-v-5b4edb64]{align-items:center;background-color:var(--iku-color-primary);border-radius:50%;display:flex;height:100%;justify-content:center;line-height:40px;text-align:center;width:100%}.iku-backtop .back-top-content .iku-icon[data-v-5b4edb64]{font-weight:600}