/*컨텐츠 헤더*/
#content-header {
  margin-top: 14.25rem;
}
#content-header .con-header h1.display {
  margin: 8rem 0;
}
#content-header .w-100 {
  padding: 1rem 0;
  background-color: #fff;
  position: sticky;
  right: 0;
  top: 0;
}
/*페이지 네비게이션*/
.lnb {
  width: 100%;
  padding: 1rem 0 2rem 0;
  background-color: rgba(255, 255, 255, 0.6);
  position: sticky;
  top: 6.25rem;
  left: 0;
  z-index: 50;
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gray-06);
}
.lnb-btn-list {
  margin: 0 auto;
  width: 60%;
  gap: 0.5rem;
}
.lnb-btn-item {
  flex: 1 1 0;
  background-color: var(--gray-06);
  transition: all 0.2s;
}
.lnb-btn-link {
  width: 100%;
  padding: 0.5rem 0;
  text-align: center;
  color: var(--gray-03);
}
.lnb-btn-item.on {
  background-color: var(--primary-dark);
}
.lnb-btn-item.on .lnb-btn-link {
  color: #fff;
}
/*about nvt*/
#about-nvt {
  width: 100%;
  background: url(../images/about-img-31.png) left top no-repeat;
  background-size: cover;
  background-attachment: fixed;
}
#about-nvt .container {
  padding: 5.5rem 0;
}
/*연혁*/
#history .history-list {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
}
#history .history-item {
  padding: 0.5rem 1.5rem;
  flex: 1 1 0;
  position: relative;
  border-top: 1px solid var(--gray-05);
}
#history .history-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 1px;
  height: 4.5rem;
  border-left: 1px solid var(--primary-dark);
}
#history .history-item img {
  position: absolute;
  left: -7px;
  top: -8px;
}
#history .history-item .d-flex {
  margin-bottom: 1rem;
}
#history .history-item .d-flex:last-child {
  margin-bottom: 0;
}
#history .history-item h3 {
  color: var(--gray-05);
  margin-bottom: 1rem;
}
#history .history-item h5 {
  width: 2.5rem;
  flex: 0 0 auto;
}
/*조직도*/
#organization .organization-chart {
  width: 100%;
  padding-top: 40.85%;
  background: url(../images/organization-chart.svg) center top no-repeat;
  background-size: contain;
}
/*오시는길*/
#map .map-box {
  width: 100%;
  height: 30rem;
  background: url(../images/map-img.png) center top no-repeat;
  background-size: cover;
}
#map .map-info-item {
  display: flex;
  gap: 2rem;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 1px solid var(--gray-01);
}
#map .map-info-item h5 {
  width: 4.5rem;
}
/*공평성 선언*/
#declare img {
  border: 1px solid var(--gray-03);
}
/*노트북*/
@media screen and (max-width: 1280px) {
  .lnb-btn-list {
    width: 70%;
  }
  .about-nvt-txt .container > .w-25 {
    width: 40%;
  }
}
/*tablet L*/
@media screen and (max-width: 1024px) {
  #about-nvt-txt .d-flex {
    flex-direction: column;
    gap: 2.5rem;
  }
  #history .history-list {
    gap: 1rem 0;
  }
  #history .history-item {
    flex: 0 1 50%;
  }
  #declare > .w-60 {
    width: 80%;
  }
}
/*tablet M*/
@media screen and (max-width: 768px) {
  .lnb {
    padding: 1rem 2rem;
  }
  .lnb-btn-list {
    width: 100%;
  }
  #about-nvt .container {
    flex-direction: column;
  }
  #organization .organization-chart {
    width: 100%;
    padding-top: 133.5%;
    background: url(../images/organization-chart-m.svg) center top no-repeat;
    background-size: contain;
  }
}
/*mobile*/
@media screen and (max-width: 576px) {
  .mb-88 {
    margin-bottom: 2.5rem;
  }
  .lnb {
    top: 4.5rem;
  }
  .lnb-btn-item {
    height: 4rem;
    align-content: center;
  }
  .lnb-btn-link {
    font-size: 1rem;
  }
  #history .history-item {
    flex: 1 0 100%;
  }
  #history .history-item::before {
    height: 100%;
  }
  #declare > .w-60 {
    width: 100%;
  }
}