/* root */
:root{
  --PrimaryColor: #4A81FC;
  --SecondaryColor: #1C336A;
  --PointColor: #ff5722;
  --ContentColor: #F2F4F6;
  --Pastelcolor1: #F9E8E5;
  --Pastelcolor2: #F8E9DA;
  --Pastelcolor3: #E9EBF4;
  --Pastelcolor4: #DBEDF0;
  --Pastelcolor5: #FFFAE8;
  --GrayScale1: #121212;
  --GrayScale2: #333333;
  --GrayScale3: #929292;
  --MenuColor: #73696B;
}

/* header */
header{
  width: 100%;
  height: 150px;
  padding-top: 20px;
  position: relative;
  z-index: 10000;
}
.mobile_header, .mobile_nav, .mobile_kca_desc, .mobile_sec2_items, .mobile_main_content, .mobile_section3_news, .mobile_notice_control, .mobile_sitemap,  .mobile_consumerbtn, .mobile_footer_logo, .mobile_sitemap_tap, .mobile_login{
  display: none;
}
/* gnb_element */
.gnb_element{
  width: 100%;
  height: 60px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 10001;
}
.logo_area{
  width: 175px;
  height: 60px;
}
.logo_area > img{
  z-index: -1;
}
.top_right_menu{
  z-index: 10001;
}
.top_right_menu>ul{
  display: flex;
  align-items: center;
}
.top_right_menu > ul > li, #darkimg{
  position: relative;
  padding-left: 20px;
  font-size: 16px;
  font-family: "Pretendard GOV Variable", "Pretendard GOV", -apple-system;
  font-weight: 600;
}
/* select */
.select_wrap {
  width: 55px;
  height: 20px;
  background:url('../assets/images/header-arrow.svg') no-repeat 97% 50%/15px auto;
  display: flex;
  align-items: center;
  cursor: pointer;
  z-index: 100;
}
select{
  -webkit-appearance:none; /* for chrome */
  -moz-appearance:none; /*for firefox*/
  appearance:none;
  box-sizing: border-box; /* select 박스의 크기 방식 지정 */
  background:transparent;/* 배경색 투명 처리 */
  font-family: "Pretendard GOV Variable", "Pretendard GOV", -apple-system;
  font-size: 16px;
  font-weight: 600;
  width: 100%;
  border: none;
  background: none;
  cursor: pointer;
}
select::-ms-expand{
  display: none;/*for IE10,11*/
}
select > option{}
/* nav */
#gnb{
  width: 1280px;
  position: absolute;
  top: 85px;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  z-index: 10002;
}
#gnb > ul{
  width: 925px;
  height: 64px;
  margin: auto;
  display: flex;
  justify-content: center;
  align-items: center;
}
#gnb > ul > li{
  flex: 1;
  width: 100%;
  height: 100%;
}
#gnb > ul > li:nth-child(4){
  flex: 1.2;
}
#gnb > ul > li:nth-child(5){
  flex: 1.5;
}
#gnb > ul > li > a{
  display: block;
  width: 100%;
  height: 100%;
  line-height: 60px;
  text-decoration: none;
}
.gnb_item{
  position: relative;
}
.gnb_item::after{
  content: '';
  position: absolute;
  width: 19px;
  height: 19px;
  top: 0;
  right: 0;
  background: url(../assets/images/header-sig.svg) no-repeat 50% 50%;
  background-size: cover;
  opacity: 0; /* 안보이게 설정 */
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.gnb_item:hover .gnb_item::after{
  opacity: 1;
}
.gnb_item:hover{
  border-bottom: 4px solid var(--PointColor);
}
.gnb_item:hover::after {
  opacity: 1;
  transform: translateY(5px);
}
#gnb > ul > .sitemap_btn{
  width: 20px;
  height: 20px;
  position: absolute;
  right: 0;
  cursor: pointer;
  background: none;
}
/* 펼쳐지는 메뉴 */
.gnb_wrap{
  z-index: 10003;
  width: 100%;
  position: relative
}
.gnb_submenu{
  position: absolute;
  left: 0;
  right: 0;
  display: block; /* display를 block으로 유지하고, 높이 조절로 감춤 */
  max-height: 0; /* 처음에 감춰진 상태로 설정 */
  width: 100%;
  box-shadow: 0 10px 10px #00000025;
  border-top: 2px solid #62626240;
  border-radius: 0 0 50px 50px;
  overflow: hidden; /* 내용이 넘치지 않도록 설정 */
  transition: max-height 0.2s ease;
  transform: translateY(-600px);
  opacity: 0;
  z-index: 10004;
}
.gnb_submenu.open {
  max-height: 600px;
  transform: translateY(0);
  opacity: 1;
}
.gnb_content{
  display: flex;
  background-color: #fff;
  position: relative;
  z-index: 10005;
}
.content_left{
  width: 25%;
  height: 534px;
  border-radius: 0 50px 0 50px;
  text-align: center;
  position: relative;
  z-index: 100;
}
.content_tit{
  width: 225px;
  height: 330px;
  margin-top: 60px;
  margin-left: 35%;
}
.content_left img{
  width: 206px;
  height: 206px;
}
.content_left h3{
  margin-top: 25px;
}
.content_left p{
  margin-top: 18px;
  line-height: 1.2;
}
.content_left::before{
  content: '';
  position: absolute;
  width: 324px;
  height: 324px;
  background: url(../assets/images/signature-red2.svg);
  left: 0;
  bottom: -36px;
  animation: sigRed 20s 1s forwards infinite alternate;
}
.content1{
  background: #F6F1F1;
}
.content2{
  background: #F8E9DA;
}
.content4{
  background: #E9EBF4;
}
.content5{
  background: #DBEDF0;
}
.content_middle{
  width: 22%;
  margin-left: -100px;
  padding-left: 100px;
  background-color: var(--MenuColor);
}
.content_middle ul{
  width: 100%;
  height: 100%;
}
.content_middle ul li{
  width: 100%;
  height: 67px;
  border-bottom: 1px solid #ffffff8c;
}
.content_middle ul li:hover{
  background-color: #ffffff1f;
  text-decoration: none;
  font-weight: 800;
}
.content_middle ul li a{
  display: inline-block;
  width: 100%;
  height: 100%;
  text-align: left;
  line-height: 67px;
  padding-left: 25px;
  color: #fff;
  cursor: pointer;
}
.content_right{
  width: 53%;
  display: flex;
  flex-wrap: wrap;
  padding: 40px 60px 100px 60px;
  background-color: #fff;
}
.content_right_menu{
  width: 312px;
  height: 125px;
  margin-right: 60px;
  background-color: #fff;
  cursor: pointer;
  transition: transform 0.6s cubic-bezier(0.33, 1, 0.68, 1);
}
.content_right_menu h6{
  position: relative;
  width: 312px;
  height: 40px;
  transition: transform 0.6s cubic-bezier(0.33, 1, 0.68, 1);
}
.content_right_menu:hover h6{
  font-weight: 900;
}
.content_right_menu h6::after{
  content: '';
  position: absolute;
  width: 312px;
  height: 1px;
  background-color: #d8d8d8;
  bottom: 0;
  left: 0;
}
.content_right_menu p {
  width: 312px;
  height: 80px;
  padding-top: 12px;
  line-height: 1.2;
}


/* body가 부모태그 / snb, signature */
/* section1 */
/* body가 부모태그 / main_top */
/* section2 */
/* section3 */
/* section4 */
/* footer */