.topic-expand-enter-active[data-v-731c3ad3],.topic-expand-leave-active[data-v-731c3ad3]{overflow:hidden;transition:max-height .2s ease,opacity .2s ease,transform .2s ease}.topic-expand-enter-from[data-v-731c3ad3],.topic-expand-leave-to[data-v-731c3ad3]{max-height:0;opacity:0;transform:translateY(-4px)}.topic-expand-enter-to[data-v-731c3ad3],.topic-expand-leave-from[data-v-731c3ad3]{max-height:320px;opacity:1;transform:translateY(0)}