details{margin-bottom:var(--sp);border:1px solid var(--color-grey-light);border-radius:var(--border-radius-small)}details summary{list-style:none;position:relative;cursor:pointer;padding:var(--sp);margin:0}details summary:after{content:"";position:absolute;right:27px;top:50%;transform:translateY(-50%);width:10px;height:10px;border:solid var(--color-text);border-width:2px 2px 0 0;transform:translateY(-50%) rotate(135deg);transition:transform .3s ease}details[open]>summary{border-bottom:1px solid var(--color-grey-light)}details[open]>summary:after{transform:translateY(-50%) rotate(-45deg)}