@charset "UTF-8";

/********************************************************
■ Slide Menu : PC&모바일 슬라이드 메뉴 부분
********************************************************/
body.m-menu-on {
  overflow: hidden;
}
body.m-menu-on #m-menu {
  opacity: 1;
  visibility: visible;
  z-index: 1100;
}
body.m-menu-on .is-subpage {
  height: 100vh;
  overflow: hidden;
}

#m-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  max-width: 100%;
  z-index: 1;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transition-duration: 400ms;
  --bg-w: 28%;
  --btns-h: 85px;
}

#m-menu .bg {
  position: absolute;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  overflow: hidden;
  z-index: 1;
  background: #000;
}

#m-menu .bg .m-menu-bg-video {
  position: absolute;
  left: 20%;
  top: 0;
  height: 100%;
  width: auto;
  max-width: none;
  transform: translateX(-50%);
  object-fit: contain;
  object-position: center center;
  pointer-events: none;
  z-index: 0;
}

#m-menu .bg:before,
#m-menu .bg:after {
  content: "";
  position: absolute;
  pointer-events: none;
}
#m-menu .bg:before {
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 1;
}
#m-menu .bg:after {
  left: 5vw;
  top: 0;
  right: 5vw;
  height: var(--top-height);
  background: url("../image/main_logo_w.png") no-repeat left center;
  z-index: 2;
}

#m-menu .m-menu-btns {
  position: absolute;
  left: 5vw;
  bottom: 30px;
  right: 5vw;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 9;
  display: none;
}

#m-menu .m-menu-login {
  display: flex;
}
#m-menu .m-menu-login a {
  position: relative;
  font-size: 0.875em;
  color: rgba(255, 255, 255, 0.5);
  height: 25px;
  line-height: 25px;
  padding-right: 10px;
  margin-right: 10px;
}
#m-menu .m-menu-login a:hover {
  color: rgba(255, 255, 255, 0.85);
}
#m-menu .m-menu-login a:before {
  content: "";
  position: absolute;
  top: 50%;
  right: 0;
  width: 2px;
  height: 10px;
  background: rgba(255, 255, 255, 0.1);
  margin-top: -6px;
}
#m-menu .m-menu-login a:last-child:before {
  display: none;
}

#m-menu .family-box {
  position: relative;
  font-size: var(--links-xxs);
  color: rgba(255, 255, 255, 0.7);
  --family-padding: 10px 15px;
}
#m-menu .family-box .family-btn {
  padding: var(--family-padding);
  border: 1px solid rgba(255, 255, 255, 0.5);
}
#m-menu .family-box .family-btn i {
  margin-left: 20px;
  font-size: var(--links-xxs);
  transition-duration: 400ms;
}
#m-menu .family-box.on .family-btn i {
  transform: rotate(180deg);
}
#m-menu .family-box .sub {
  position: absolute;
  left: 0;
  right: 0;
  bottom: calc(100% - 1px);
  opacity: 0;
  border: 1px solid rgba(255, 255, 255, 0.5);
  visibility: hidden;
  max-height: 0;
  z-index: -1;
  transition-duration: 400ms;
}
#m-menu .family-box.on .sub {
  max-height: 530px;
  opacity: 1;
  visibility: visible;
  z-index: 1;
  overflow-y: auto;
}
#m-menu .family-box.on .sub::-webkit-scrollbar {
  width: 1px; /* 세로축 스크롤바 폭 너비 */
}
#m-menu .family-box .sub a {
  display: block;
  color: inherit;
  padding: var(--family-padding);
  border-bottom: 1px solid rgba(255, 255, 255, 0.5);
}
#m-menu .family-box .sub a:last-child {
  border: none;
}
#m-menu .family-box .sub a:hover {
  background: #fff;
  color: #333;
}

#m-menu .m-menu-container {
  position: relative;
  left: var(--bg-w);
  right: 0;
  height: 100%;
  width: calc(100% - var(--bg-w));
  padding: var(--btns-h) 4.5%;
  z-index: 3;
  display: flex;
  align-items: center;
}
#m-menu .m-menu-container:before {
  content: "";
  position: absolute;
  left: -30vw;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
  transition: left 1000ms ease-in-out 0ms;
}
body.m-menu-on #m-menu .m-menu-container:before {
  left: 0;
  transition: left 1.2s ease-in-out 300ms;
}

#m-menu .m-menu-container .nis_logo {
  position: relative;
  padding: 18px 30px;
  border: none;
  color: #fff;
  margin: 0 5px;
  transition-duration: 400ms;
}
#m-menu .m-menu-container .postech_logo {
  position: relative;
  width: 8rem;
  padding: var(--spacing-0);
  border: none;
  color: #fff;
  margin: 0 5px;
  transition-duration: 400ms;
}
#m-menu .m-menu-container .nis_logo img {
  width: 50%;
  position: absolute;
  z-index: 0;
  transition: 0.4s;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
#m-menu .m-menu-container .nis_logo img.nis_hov {
  opacity: 0;
  visibility: hidden;
  z-index: -1;
}
#m-menu .m-menu-container .nis_logo:hover,
#m-menu .m-menu-container .postech_logo:hover {
  background: none;
}
#m-menu .m-menu-container .nis_logo:hover img.nis_hov {
  opacity: 1;
  visibility: visible;
  z-index: 0;
}

#m-menu .btns {
  position: absolute;
  left: 0;
  top: 0;
  right: 0;
  height: var(--btns-h);
  display: flex;
  align-items: center;
  justify-content: flex-end;
}
#m-menu .btns a {
  display: inline-block;
  padding: 7px 25px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  color: #fff;
  margin: 0 5px;
  font-size: 0.875rem;
  transition-duration: 400ms;
}
#m-menu .btns a:hover {
  background: #fff;
  color: #000;
}

#m-menu .btn-close {
  position: relative;
  width: var(--btns-h);
  height: 100%;
  background: #222;
  color: #eee;
  margin-left: 20px;
}
#m-menu .btn-close:before,
#m-menu .btn-close:after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  height: 40px;
  width: 4px;
  background: #fff;
  border-radius: 4px;
  margin: -20px 0 0 -2px;
}
#m-menu .btn-close:before {
  transform: rotate(45deg);
}
#m-menu .btn-close:after {
  transform: rotate(-45deg);
}
#m-menu .btn-close:hover {
  background-color: var(--main-color1, #444) !important;
  color: #fff;
}

#m-menu .items {
  width: 100%;
  height: 100%;
  padding: 0 25px;
  overflow-y: auto;
  overflow-x: hidden;
}
#m-menu .item {
  position: relative;
  display: flex;
  align-items: center;
  padding: 35px 0px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}
#m-menu .item:before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  right: 0;
  width: 0;
  height: 1px;
  background: #fff;
  transition-duration: 400ms;
}
#m-menu .item:hover:before {
  width: 100%;
}

#m-menu .item .is_sub {
  position: relative;
  padding: 0 1rem;
  color: #fff;
  display: block;
  font-size: var(--title-xxl);
  font-weight: 700;
  width: 23%;
  max-width: 220px;
}
#m-menu .item .sub li {
  padding: 0.5rem 1rem;
  display: flex;
  text-align: left;
  align-items: center;
  width: 20%;
  max-width: 200px;
}
#m-menu .item .sub .sub-a {
  color: rgba(255, 255, 255, 0.5);
  display: flex;
}
#m-menu .item .sub li:hover > .sub-a,
#m-menu .item .sub li.on > .sub-a {
  color: #fff;
}

#m-menu .item .depth2 {
  display: flex;
  flex: 1;
  align-items: flex-start;
  flex-wrap: wrap;
}
#m-menu .item .depth2 > li {
}
#m-menu .item .depth2 > li > .sub-a {
  text-align: center;
  font-size: 1.2rem;
  text-align: left;
  color: rgba(255, 255, 255, 0.7);
  width: 100%;
}

#m-menu .item .depth3 {
  display: flex;
  flex: 1;
}

@media (max-width: 1500px) {
  #m-menu {
    --bg-w: 27%;
  }
  #m-menu .m-menu-login {
    flex-direction: column;
  }
  #m-menu .m-menu-container {
    padding: var(--btns-h) 50px;
  }
}

@media (max-width: 1400px) {
  #m-menu .item {
    display: block;
    padding: 25px 0;
  }
  #m-menu .item .is_sub {
    font-size: 1.375rem;
    margin-bottom: 10px;
    width: 100%;
    max-width: 100%;
  }

  #m-menu .item .sub li {
    padding: 0.5rem 1rem;
  }
  #m-menu .item .depth2 {
    width: 100%;
  }
  #m-menu .item .depth2 > li {
    margin-left: 30px;
  }
}

@media (max-width: 1200px) {
  #m-menu {
    --bg-w: 0;
  }
  #m-menu .m-menu-login {
    flex-direction: row;
  }

  #m-menu .m-menu-btns {
    left: 65px;
    right: 65px;
    bottom: 20px;
  }
  #m-menu .m-menu-container {
    padding: var(--btns-h) 30px;
  }
}

@media (max-width: 1024px) {
  body.m-menu-on {
    overflow: hidden !important;
    height: 100vh !important;
  }
}

@media (max-width: 767px) {
  #m-menu {
    --btns-h: 60px;
  }
  #m-menu .m-menu-btns {
    left: 15px;
    right: 15px;
  }
  #m-menu .m-menu-container {
    display: block;
    padding: calc(var(--btns-h) + 30px) 15px 80px;
  }

  #m-menu .btns:before {
    content: "";
    position: absolute;
    left: 15px;
    top: 10px;
    bottom: 10px;
    width: 30%;
    background: url("../image/main_logo_w.png") no-repeat left center/contain;
  }
  #m-menu .btns a {
    padding: 3px 10px;
    margin: 0 2.5px;
    font-size: 0.75rem;
  }
  #m-menu .m-menu-container .nis_logo {
    padding: 13px 17px;
  }
  #m-menu .m-menu-container .nis_logo img {
    width: 75%;
  }
  #m-menu .m-menu-container .postech_logo {
    width: 3.5rem;
    padding: 0;
  }
  #m-menu .btn-close {
    margin-left: 5px;
    margin-right: 12px;
    width: calc(var(--btns-h) * 0.5);
    height: 50%;
  }
  #m-menu .btn-close:before,
  #m-menu .btn-close:after {
    height: 20px;
    margin-top: -10px;
    width: 2px;
    margin-left: -1px;
  }

  #m-menu .items {
    padding: 0;
  }
  #m-menu .item {
    padding: 5px 0;
    border: none;
  }
  #m-menu .item:before {
    display: none;
  }

  #m-menu .item .is_sub {
    padding: 0 15px;
  }
  #m-menu .item .is_sub.more:before,
  #m-menu .item .is_sub.more:after {
    content: "";
    position: absolute;
    top: 50%;
    right: 15px;
    background: #fff;
    width: 10px;
    height: 2px;
    border-radius: 99px;
  }
  #m-menu .item .is_sub.more:before {
    transform: rotate(42deg);
    margin-right: 6px;
  }
  #m-menu .item .is_sub.more:after {
    transform: rotate(-42deg);
  }

  #m-menu .item .depth2 {
    width: 100%;
    padding: 0 25px;
    background: rgba(0, 0, 0, 0.7);
    display: block;
    text-align: left;
    overflow: hidden;
  }
  #m-menu .item .depth2 > li {
    margin-right: 0;
    margin-left: 0px;
    flex-direction: column;
    align-items: flex-start;
    max-width: 100%;
    width: 100%;
  }
  #m-menu .item .depth2 > li:first-child {
    margin-top: 20px;
  }
  #m-menu .item .depth2 > li:last-child {
    margin-bottom: 20px;
  }
  #m-menu .item .depth2 > li > .sub-a {
    width: 100%;
    max-width: 100%;
  }
  #m-menu .item .depth3 {
    display: block;
    margin-top: 5px;
    padding-left: 5px;
  }
  #m-menu .item .depth3 .sub-a:before {
    content: "- ";
  }
}