/* 도구/SEO 설명 아코디언 토글 아이콘 회전 */
[data-bs-toggle="collapse"][aria-expanded="true"] .bi-chevron-down {
  transform: rotate(180deg);
  transition: transform 0.2s ease;
}
[data-bs-toggle="collapse"][aria-expanded="false"] .bi-chevron-down {
  transform: rotate(0deg);
  transition: transform 0.2s ease;
}