html,
body {
  max-width: 100%;
  overflow-x: hidden;
  width: 100%;
  font-size: 20px;
  line-height: 1.15;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: none;
  -ms-overflow-style: none;
  /* IE and Edge */
  scrollbar-width: none;
  /* Firefox */
  /* 글꼴 크기 조정을 방지 */
  -webkit-text-size-adjust: 100%;
}

::-webkit-scrollbar {
   /* display: none;*스크롤 안보임/
  /* Chrome, Safari, Opera*/
}

* {
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: 'Noto Sans KR', sans-serif;
}

a {
  background-color: transparent;
  text-decoration: none;
  color: #000;
}

header{
  width: 100%;
  height: 120px;
  background-color: #00000075;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 999;
}

.header_wrap{
  width: 90%;
  margin: 20px auto 0;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo{
  width: 400px;
}
.logo>img{
  width: 100%;
}

.header_menu>li{
  display: inline-block;
  margin-right: 100px;
  position: relative;
  padding: 10px 0;
}
.header_menu>li:last-child{
  margin-right: 0;
}
.header_menu>li>a{
  color: #fff;
  font-size: 0.9rem;
}
.header_bt>button{
  border: none;
  padding: 5px 15px;
  cursor: pointer;
  border-radius: 30px;
  font-size: 0.65rem;
  background-color: #31416f;
  color: #fff;
  font-weight: 300;
  transition: 0.3s;
}
.header_bt>button>a{
  color: #fff;
}
.home_bt{
  margin-right: 5px;
}
.header_bt>button:hover{
  background-color: #fff;
  color: #31416f;
}
.header_bt>button:hover>a{
  color: #31416f;
}

/* 서브메뉴 */
.sub_menu{
  position: absolute;
  top: 45px;
  left: 0;right: 0;
  margin: auto;
  background-color: #fff;
  display: none;
  width: 140px;
}
.sub_menu>li{
  line-height: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  padding: 5px 0;
  transition: 0.3s;
}
.sub_menu>li>a{
  color: #000;
}
.sub_menu>li:hover{
  background-color: #eee;
}
/* menu_bt */

.menu_bt{
  position: absolute;
  top: 15px;
  right: 0;
  background: transparent; 
  border:none; 
  cursor: pointer; 
  width: 30px;
  height: 26px;
  display: inline-block;
  display: none;
}
.menu_bt>span{
  display: block;
  width: 100%;
  height: 2px;
  background: #fff;
  position: absolute;
  transition: 0.3s;
}
.menu_bt>span:first-child{
  top: 0;
}
.menu_bt>span:nth-child(2){
  top: 10px;
}
.menu_bt>span:last-child{
  top: 20px;
}
 
.menu_bt:hover>span:nth-child(2){ 
  width: 18px;
}
/* menu_bt_on */
.menu_bt>.on:nth-child(1) {
  transform: translateY(10px) rotate(45deg);  
}
.menu_bt>.on:nth-child(2) {
  opacity: 0;
}
.menu_bt>.on:nth-child(3) {
  transform: translateY(-10px) rotate(-45deg); 
}
/* accordion_menu */
#accordion_wrap{
  width: 100%;
  height: 100%;
  position: fixed;
  top: 80px;left: 0;
  background-color: rgb(255, 255, 255);
  visibility: hidden;
  z-index: 990;
}
.accordion{
  width: 95%;
  margin: auto;
}

.accordion_menu{
  padding: 20px 0;
}
.que{
position: relative;
padding: 20px 10px;
cursor: pointer;
font-size: 0.9rem;
border-bottom: 1px solid #dddddd;
}

.que>a>span{
  padding-left: 10px;
}

.que.on>span{
color: #31416f;
}

.anw {
display: none;
overflow: hidden;
background-color: #31416f;
padding: 20px;
}

.anw>li{
  padding-bottom: 30px;
}
.anw>li:last-child{
  padding-bottom: 0;
}
.anw>li>a{
  color: #fff;
  font-size: 0.8rem;
  font-weight: 300;
  transition: 0.3s;
}
.arrow-wrap {
position: absolute;
top:50%; right: 10px;
transform: translate(0, -50%);
}

.que .arrow-top {
display: none;
}
.que .arrow-bottom {
display: block;
}
.que.on .arrow-bottom {
display: none;
}
.que.on .arrow-top {
display: block; 
}
.que_ebook{
  width: 40px;
}
@media(max-width:1299.98px){
  .header_wrap{
    margin: 20px auto 0;
  }
  header{
    height: 100px;
  }
  .logo{
    width: 180px;
  }
  .header_menu>li{
    margin-right: 30px;
  }
  .header_menu>li>a{
    font-size: 0.8rem;
  }
}
@media(max-width:950px){
  .header_wrap{
    margin: 15px auto 0;
  }
  header{
    height: 80px;
  }
  .header_menu,.header_bt{
    display: none;
  }
  .logo{
    width: 120px;
  }
  .menu_bt{
    display: block;
  }
}