#header {
    position: relative;
    border-bottom: 1px solid #ddd;
}

.header {
    border-bottom: 1px solid #ddd;
}

#header .header-inner {
    max-width: 1200px;
    margin: 0 auto;
}

#header .header-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* LOGO */
.header-wrap .tlogo {}

/* TEL */
.header-wrap #tel_but {
    display: none;
    position: fixed;
    top: 15px;
    right: 60px;
    z-index: 10;
}

/***** PC GNB ******/
.header-wrap .main-nav {
    width: 70%;
}

.header-wrap .main-nav #gnb {
    display: flex;

}

.main-nav #gnb>li {
    position: relative;
    width: 20%;
    text-align: center;
    transition: all 0.3s ease;
}

.main-nav #gnb>li>a {
    display: block;
    font-size: 19px;
    color: #333;
    font-weight: 600;
    height: 75px;
    line-height: 75px;
}

.main-nav #gnb li .submenuul {
    position: absolute;
    opacity: 0;
    visibility: hidden;
    ;
    border-left: 1px solid #ddd;
    height: 0;
    top: 76px;
    width: 100%;
    padding: 10px 0px;
    transition: all 0.4s ease;
}

.main-nav #gnb li:last-child .submenuul {
    border-right: 1px solid #ddd;
}

.main-nav #gnb li .submenuul>li>a {
    font-size: 16px;
    padding: 5px 0px;
    display: block;
}

.main-nav #gnb>li:after {
    content: '';
    position: absolute;
    left: 50%;
    width: 0%;
    height: 2px;
    background: #0669bf;
    transition: all 0.3s ease;
}

/* MOUSEOVER */
.main-nav #gnb>li.active>a {
    color: #0069bf
}

.main-nav #gnb>li.active:after {
    width: 100%;
    left: 0%;
}

.main-nav #gnb li.active .submenuul {
    background: #f4f4f4
}

.main-nav #gnb li .submenuul.on {
    visibility: visible;
    opacity: 1;
    z-index: 999;
    height: 350px;
    padding: 10px 0;
}

/* HEADER BACKGROUND */
.header_bg {
    position: absolute;
    width: 100%;
    height: 75px;
    left: 0;
    top: 0;
    background: #fff;
    overflow: hidden;
    transition: all 0.4s;
    z-index: 99;
}

.header_bg.on {
    height: 400px;
    border-bottom: 1px solid #ddd;
}

/* 스크롤 다운 */
#header.header_scroll {
    position: fixed;
    z-index: 9999;
    top: 0;
    left: 0;
    width: 100%;
}

#header.header_scroll .header_bg {
    background: rgba(255, 255, 255, 1);
    box-shadow: 0px 5px 30px rgba(0, 0, 0, 0.2);
}



@media screen and (max-width:1023px) {
    .header {
        height: 75px;
    }

    #header .header-inner {
        height: 100%;
        padding: 0 10px;
    }

    #header .header-wrap {
        height: 100%;
    }

    .mob-btn {
        display: block;
    }

    .header-wrap #tel_but {
        display: block;
    }

    .header-wrap .main-nav {
        display: none;
    }

}