#wrap {
  position: relative;
  width: 100%;
  margin: 0 auto;
}

#header {
  z-index: 12;
  position: sticky;
  left: 0;
  top: 0;
  width: 100%;
  height: 100px;
  padding: 25px 70px 0;
  background: rgba(255, 255, 255, 1);
}

#header:after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  display: block;
  width: 100%;
  height: 1px;
  background: #ebebeb;
}

#header h1 {
  z-index: 11;
  position: relative;
  display: inline-block;
}

#header h1 img.desktop {
  display: block;
}

#header h1 img.mobile,
#header .close {
  display: none;
}

#header .gnb_area {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  text-align: center;
}

#header .gnb_area>ul {
  z-index: 10;
  position: relative;
  display: flex;
  justify-content: center;
}

#header .gnb_area>ul>li>a {
  transition: color 0.5s ease;
  position: relative;
  display: block;
  color: #888;
  font-size: 20px;
  letter-spacing: -0.05em;
  padding: 39px 35px;
}

#header .gnb_area>ul>li>a:hover {
  color: #000;
}

#header .gnb_area>ul>li>a span {
  z-index: 10;
  position: relative;
  display: block;
  min-width: 30px;
}

#header .gnb_area>ul>li.ative>a span {
  border-bottom: 1px solid #000;
  color: #000;
  padding-bottom: 40px;
}

#header .gnb_area>ul>li>a span::after {
  position: absolute;
  content: "";
  display: block;
  border-bottom: 1px solid #000;
  transition: width 250ms ease-out;
  left: auto;
  right: 0;
  width: 0;
  padding-bottom: 40px;
}

#header .gnb_area>ul>li>a span:hover::after {
  width: 100%;
  left: 0;
  right: auto;
}

#header .logo_dongsimlab {
  z-index: 11;
  position: absolute;
  right: 70px;
  top: 27px;
}

#header .logo_dongsimlab img {
  width: 90px;
  height: auto;
}

#footer {
  background-color: #f8f8f9;
  position: relative;
}

#footer .container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 29px 0;
}

#footer .copyright {
  color: #aaa;
  font-size: 14px;
  text-align: center;
}

#btn_top {
  z-index: 20;
  display: none;
  position: fixed;
  right: 29px;
  bottom: 29px;
  background-color: rgba(255, 255, 255, 0.8);
  border-radius: 100%;
  width: 64px;
  height: 64px;
  box-shadow: 0 4px 10px rgb(0 0 0 / 20%);
}

@-webkit-keyframes verticalAction1 {
  0% {
    transform: translateY(0);
  }

  100% {
    transform: translateY(-35%);
  }
}

@keyframes verticalAction1 {
  0% {
    transform: translateY(0);
  }

  100% {
    transform: translateY(-35%);
  }
}

@-webkit-keyframes verticalAction2 {
  0% {
    transform: translateY(0);
  }

  100% {
    transform: translateY(20%);
  }
}

@keyframes verticalAction1 {
  0% {
    transform: translateY(0);
  }

  100% {
    transform: translateY(20%);
  }
}

@-webkit-keyframes rotate-veticalAction4 {
  0% {
    -webkit-transform: translateY(100%) rotate(-5deg);
    transform: translateY(10%) rotate(-5deg);
  }

  50% {
    -webkit-transform: translateY(0%) rotate(0deg);
    transform: translateY(0%) rotate(0deg);
  }

  100% {
    -webkit-transform: translateY(20%) rotate(5deg);
    transform: translateY(20%) rotate(5deg);
  }
}

@keyframes rotate-veticalAction4 {
  0% {
    -webkit-transform: translateY(10%) rotate(-5deg);
    transform: translateY(10%) rotate(-5deg);
  }

  50% {
    -webkit-transform: translateY(0%) rotate(0deg);
    transform: translateY(0%) rotate(0deg);
  }

  100% {
    -webkit-transform: translateY(20%) rotate(5deg);
    transform: translateY(20%) rotate(5deg);
  }
}

@-webkit-keyframes rotateAction3 {
  0% {
    -webkit-transform: rotate(30deg);
    transform: rotate(30deg);
  }

  50% {
    -webkit-transform: rotate(-30deg);
    transform: rotate(-30deg);
  }

  100% {
    -webkit-transform: rotate(30deg);
    transform: rotate(30deg);
  }
}

@keyframes rotateAction3 {
  0% {
    -webkit-transform: rotate(30deg);
    transform: rotate(30deg);
  }

  50% {
    -webkit-transform: rotate(-30deg);
    transform: rotate(-30deg);
  }

  100% {
    -webkit-transform: rotate(30deg);
    transform: rotate(30deg);
  }
}

@-webkit-keyframes rotateAction4 {
  0% {
    -webkit-transform: rotate(1deg);
    transform: rotate(1deg);
  }

  100% {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}

@keyframes rotateAction4 {
  0% {
    -webkit-transform: rotate(1deg);
    transform: rotate(1deg);
  }

  100% {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}

@-webkit-keyframes rotateAction5 {
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
    -webkit-transform-origin: bottom left;
    transform-origin: bottom left;
  }

  100% {
    -webkit-transform: rotate(8deg);
    transform: rotate(8deg);
    -webkit-transform-origin: bottom left;
    transform-origin: bottom left;
  }
}

@keyframes rotateAction5 {
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
    -webkit-transform-origin: bottom left;
    transform-origin: bottom left;
  }

  100% {
    -webkit-transform: rotate(8deg);
    transform: rotate(8deg);
    -webkit-transform-origin: bottom left;
    transform-origin: bottom left;
  }
}

@-webkit-keyframes rotateAction6 {
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
    -webkit-transform-origin: bottom right;
    transform-origin: bottom right;
  }

  100% {
    -webkit-transform: rotate(7deg);
    transform: rotate(7deg);
    -webkit-transform-origin: bottom right;
    transform-origin: bottom right;
  }
}

@keyframes rotateAction6 {
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
    -webkit-transform-origin: bottom right;
    transform-origin: bottom right;
  }

  100% {
    -webkit-transform: rotate(7deg);
    transform: rotate(7deg);
    -webkit-transform-origin: bottom right;
    transform-origin: bottom right;
  }
}

@-webkit-keyframes rotateAction7 {
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
    -webkit-transform-origin: bottom right;
    transform-origin: bottom right;
  }

  100% {
    -webkit-transform: rotate(15deg);
    transform: rotate(15deg);
    -webkit-transform-origin: bottom right;
    transform-origin: bottom right;
  }
}

@keyframes rotateAction7 {
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
    -webkit-transform-origin: bottom right;
    transform-origin: bottom right;
  }

  100% {
    -webkit-transform: rotate(15deg);
    transform: rotate(10deg);
    -webkit-transform-origin: bottom right;
    transform-origin: bottom right;
  }
}

@-webkit-keyframes opacityAction2 {
  0% {
    -webkit-transform: scale(1);
    transform: scale(1);
    opacity: 1;
  }

  100% {
    -webkit-transform: scale(0);
    transform: scale(0);
    opacity: 0;
  }
}

@keyframes opacityAction2 {
  0% {
    -webkit-transform: scale(1);
    transform: scale(1);
    opacity: 1;
  }

  100% {
    -webkit-transform: scale(0);
    transform: scale(0);
    opacity: 0;
  }
}

@-webkit-keyframes down-opacityAction1 {
  0% {
    -webkit-transform: translate(-90%, -90%);
    transform: translate(-90%, -90%);
    opacity: 0;
  }

  40% {
    -webkit-transform: translate(0%, 0%);
    transform: translate(0%, 0%);
    opacity: 1;
  }

  80% {
    -webkit-transform: translate(10%, 10%);
    transform: translate(10%, 10%);
    opacity: 0;
  }

  100% {
    -webkit-transform: translate(30%, 30%);
    transform: translate(30%, 30%);
    opacity: 0;
  }
}

@keyframes down-opacityAction1 {
  0% {
    -webkit-transform: translate(-90%, -90%);
    transform: translate(-90%, -90%);
    opacity: 0;
  }

  40% {
    -webkit-transform: translate(0%, 0%);
    transform: translate(0%, 0%);
    opacity: 1;
  }

  80% {
    -webkit-transform: translate(10%, 10%);
    transform: translate(10%, 10%);
    opacity: 0;
  }

  100% {
    -webkit-transform: translate(30%, 30%);
    transform: translate(30%, 30%);
    opacity: 0;
  }
}

@media screen and (max-width: 1024px) {
  #header {
    height: 77px;
    padding: 20px 30px 0;
  }

  #header .logo_dongsimlab {
    top: 20px;
    right: 30px;
    transform-origin: right top;
    transform: scale(0.8);
  }

  #header h1 a img {
    transform: scale(0.8);
    transform-origin: left top;
  }

  #header .gnb_area>ul>li>a {
    font-size: 16px;
    padding: 30px 35px 0;
  }

  #header .gnb_area>ul>li.ative>a span {
    padding-bottom: 30px;
  }

  #header .gnb_area>ul>li>a span::after {
    padding-bottom: 30px;
  }
}

@media screen and (max-width:767px) {
  #header {
    height: 106px;
    padding: 0;
  }

  #header .logo_dongsimlab {
    display: none;
  }

  #header h1 {
    border-bottom: 1px solid #ebebeb;
    height: 48px;
    padding: 0 0 0 20px;
    display: flex;
    align-items: center;
  }

  #header h1 img.desktop {
    display: none;
  }

  #header h1 img.mobile {
    display: block;
    transform: scale(1);
  }

  #header .close {
    display: block;
    margin-left: auto;
  }

  #header .close img {
    transform: scale(1);
  }

  #header .gnb_area {
    top: 48px;
  }

  #header .gnb_area>ul>li {
    width: calc(100% / 4);
  }

  #header .gnb_area>ul>li>a {
    padding: 20px 0;
  }

  #header .gnb_area>ul>li.ative>a span,
  #header .gnb_area>ul>li>a span::after {
    padding-bottom: 21px;
  }
}