안녕하세요. 메뉴관련 클릭시 색상 변화 부분 문의 드립니다.

<style>
    .gnb_wrap .depth01 > a:before {
      content: '';
      width: 100%;
      height: 0px;
      background: #0b80ed;
      position: absolute;
      bottom: 0;
      left: 0;
    }

    .gnb_wrap .depth01 > a:after {
      content: '';
      width: 100%;
      height: 0px;
      background: #0b80ed;
      position: absolute;
      bottom: 0;
      left: 0;
    }

    .gnb_wrap .depth01 > a.on:before,
    .gnb_wrap .depth01 > a:hover:before {
      height: 100%;
      -webkit-transition: 0.2s all ease-in-out;
      -o-transition: 0.2s all ease-in-out;
      transition: 0.2s all ease-in-out;
      transition-delay: 0.1s;
    }

    .gnb_wrap .depth01 > a.on:after,
    .gnb_wrap .depth01 > a:hover:after {
      height: 5px;
      -webkit-transition: 0.2s all ease-in-out;
      -o-transition: 0.2s all ease-in-out;
      transition: 0.2s all ease-in-out;
    }
  </style>
  <script src="https://code.jquery.com/jquery-3.6.4.min.js"></script>
  <script>
    $(document).ready(function () {
      $(".gnb_wrap .depth01 > a").click(function () {
        // 클릭 시 .on 클래스 토글
        $(this).toggleClass("on");
      });
    });
  </script>