:root{
  --bg:#f7f8fa;
  --surface:#ffffff;
  --surface-2:#f2f5f8;
  --text:#1f2937;
  --muted:#667085;
  --line:#e5e7eb;
  --primary:#1f4b7a;
  --primary-2:#2f6aa6;
  --shadow:0 12px 32px rgba(15,23,42,.08);
  --radius:20px;
  --max:1200px;
}

*{box-sizing:border-box}

html{
  min-height:100%;
  scroll-behavior:smooth;
}

body{
  margin:0;
  min-height:100vh;
  display:flex;
  flex-direction:column;
  font-family:'Pretendard','Noto Sans KR',sans-serif;
  color:#1f2937;
  background-color:#f8fafc;
  background-image:
    radial-gradient(circle at top left, rgba(255,255,255,0.95) 0%, rgba(255,255,255,0) 28%),
    radial-gradient(circle at top right, rgba(241,245,249,0.9) 0%, rgba(241,245,249,0) 24%),
    linear-gradient(180deg, #fcfcfd 0%, #f8fafc 45%, #f5f7fa 100%);
  background-attachment:fixed;
}

a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
button{font:inherit}

.container{width:min(var(--max),calc(100% - 32px));margin:0 auto}

.skip-link{
  position:absolute;
  left:-9999px;
  top:auto;
  width:1px;
  height:1px;
  overflow:hidden;
}
.skip-link:focus{
  left:16px;
  top:16px;
  width:auto;
  height:auto;
  padding:10px 14px;
  background:#111827;
  color:#fff;
  z-index:1000;
  border-radius:10px;
}

.site-header{
  position:sticky;
  top:0;
  z-index:200;
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(12px);
  border-bottom:1px solid #d9e2ec;
  box-shadow:0 6px 24px rgba(15,23,42,.04);
}

.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  min-height:96px;
}

.brand{
  display:flex;
  align-items:center;
  gap:14px;
  min-width:0;
}

.brand-mark{
  width:68px;
  height:68px;
  border-radius:18px;
  background:transparent;
  display:grid;
  place-items:center;
  flex:0 0 68px;
  overflow:hidden;
}

.brand-mark img{
  width:100%;
  height:100%;
  object-fit:contain;
  display:block;
}

.brand-text small{
  display:block;
  font-size:10px;
  letter-spacing:.22em;
  color:#6f8194;
  text-transform:uppercase;
  line-height:1.55;
  font-weight:800;
}

.brand-text strong{
  display:block;
  font-size:21px;
  font-weight:800;
  color:#16324f;
  letter-spacing:-.02em;
}

.gnb{
  display:flex;
  align-items:center;
  gap:10px;
}

.gnb-item{
  position:relative;
  padding:22px 0;
}

.gnb-head{
  display:flex;
  align-items:center;
  gap:2px;
  display:none;
}

.gnb-main{
  display:flex;
  align-items:center;
  padding:12px 18px;
  border-radius:12px;
  font-weight:800;
  color:#2b3d52;
  transition:.2s ease;
}

.gnb-main:hover,
.gnb-main.active,
.gnb-item.open .gnb-main,
.gnb-item.active .gnb-main{
  background:#f3f7fb;
  color:var(--primary);
}

.gnb-item::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-10px;
  height:18px;
}

.gnb-toggle{
  width:34px;
  height:34px;
  border:0;
  background:transparent;
  border-radius:10px;
  display:grid;
  place-items:center;
  cursor:pointer;
  transition:.2s ease;
  display:none;
}

.gnb-toggle:hover,
.gnb-item.open .gnb-toggle{
  background:#f3f7fb;
}

.gnb-toggle span{
  display:block;
  width:10px;
  height:10px;
  border-right:2px solid #64748b;
  border-bottom:2px solid #64748b;
  transform:rotate(45deg) translateY(-1px);
  transition:.2s ease;
}

.gnb-item.open .gnb-toggle span{
  transform:rotate(225deg) translateY(-1px);
  border-color:var(--primary);
}

.gnb-sub{
  position:absolute;
  left:0;
  top:calc(100% - 2px);
  min-width:220px;
  background:#fff;
  border:1px solid #dde6ef;
  border-radius:18px;
  box-shadow:0 18px 36px rgba(15,23,42,.10);
  padding:12px;
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:.2s ease;
  pointer-events:none;
}

.gnb-item.open .gnb-sub,
.gnb-item:focus-within .gnb-sub,
.gnb-item:hover .gnb-sub{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
  pointer-events:auto;
}

.gnb-sub a{
  display:block;
  padding:12px 14px;
  border-radius:12px;
  font-size:15px;
  color:#475467;
}

.gnb-sub a:hover,
.gnb-sub a.active{
  background:#f8fafc;
  color:var(--primary);
  font-weight:700;
}

.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
}

.header-cta{
  padding:13px 20px;
  border-radius:999px;
  background:var(--primary);
  color:#fff;
  font-weight:800;
  box-shadow:0 12px 26px rgba(31,75,122,.18);
}

.mobile-toggle{
  display:none;
  width:46px;
  height:46px;
  border:1px solid var(--line);
  background:#fff;
  border-radius:14px;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  position:relative;
}

.mobile-toggle span,
.mobile-toggle::before,
.mobile-toggle::after{
  content:"";
  display:block;
  width:20px;
  height:2px;
  background:#334155;
  border-radius:2px;
  transition:.2s;
}

.mobile-toggle span{position:absolute}
.mobile-toggle::before{position:absolute;transform:translateY(-6px)}
.mobile-toggle::after{position:absolute;transform:translateY(6px)}
.mobile-toggle.open span{opacity:0}
.mobile-toggle.open::before{transform:rotate(45deg)}
.mobile-toggle.open::after{transform:rotate(-45deg)}

.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
}

.mobile-panel.open{display:block}

.mobile-nav{padding:12px 0 20px}

.mobile-group{border-bottom:1px solid #f1f5f9}
.mobile-group:last-child{border-bottom:0}

.mobile-main{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:16px 4px;
  background:none;
  border:0;
  font-weight:800;
  color:#334155;
  cursor:pointer;
}

.mobile-sub{
  display:none;
  padding:0 0 12px 0;
}

.mobile-group.open .mobile-sub{display:block}

.mobile-sub a{
  display:block;
  padding:11px 8px 11px 18px;
  color:#475467;
  border-radius:10px;
}

.mobile-sub a.active,
.mobile-sub a:hover{
  background:#f8fafc;
  color:var(--primary);
  font-weight:700;
}

.page-topbar{
  background:#fff;
  border-bottom:1px solid #e7edf3;
}

.page-topbar-inner{
  display:flex;
  align-items:center;
  min-height:56px;
}

.page-topbar-main{
  display:inline-block;
  margin-right:12px;
  font-size:13px;
  font-weight:800;
  color:#7b8ea3;
  letter-spacing:.08em;
}

.page-topbar-title{
  font-size:16px;
  font-weight:800;
  color:#16324f;
  letter-spacing:-.02em;
}

main#content{
  flex:1 0 auto;
}

main#content > .section:first-child{padding-top:56px}
main#content > .section.white:first-child{background:transparent}

.hero{
  padding:72px 0 90px;
  background:linear-gradient(180deg,#fff 0%,#f8fbff 55%,#f7f8fa 100%);
}

.hero-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:40px;
  align-items:center;
}

.eyebrow{
  display:inline-flex;
  padding:8px 14px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--line);
  color:#64748b;
  font-size:13px;
  font-weight:700;
}

.hero h1{
  margin:18px 0 14px;
  font-size:clamp(34px,5vw,58px);
  line-height:1.15;
  color:#16324f;
}

.hero p{
  font-size:17px;
  color:var(--muted);
  max-width:700px;
}

.hero-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin-top:28px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:14px 22px;
  border-radius:999px;
  font-weight:800;
  border:1px solid transparent;
}

.btn-primary{
  background:var(--primary);
  color:#fff;
}

.btn-secondary{
  background:#fff;
  border-color:var(--line);
  color:#334155;
}

.visual-placeholder{
  aspect-ratio:4/3;
  border:2px dashed #cbd5e1;
  border-radius:32px;
  background:#fff;
  display:grid;
  place-items:center;
  color:#94a3b8;
  text-align:center;
  padding:24px;
  box-shadow:var(--shadow);
}

.hero-visual-frame{
  aspect-ratio:4/3;
  border-radius:32px;
  background:linear-gradient(180deg,#ffffff 0%,#f6f9fc 100%);
  border:1px solid #dbe5ee;
  box-shadow:var(--shadow);
  display:flex;
  align-items:center;
  justify-content:center;
  padding:0;
  overflow:hidden;
}

.hero-visual-image{
  width:100%;
  height:100%;
  object-fit:cover;
}

.section{padding:72px 0}
.section.white{background:#fff}

.section-title{
  margin:0 0 10px;
  font-size:clamp(28px,4vw,40px);
  color:#16324f;
}

.section-kicker{
  display:block;
  margin-bottom:10px;
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:#94a3b8;
  font-weight:800;
}

.section-lead{
  max-width:820px;
  color:var(--muted);
  font-size:16px;
}

.card-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
  margin-top:28px;
}

.card,
.panel,
.news-item,
.story-card,
.info-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}

.card{padding:26px}
.card h3,
.panel h3,
.info-card h3{
  margin:0 0 10px;
  color:#16324f;
}

.panel{padding:30px}

.two-col{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:24px;
}

.list-clean{
  margin:0;
  padding:0;
  list-style:none;
}

.list-clean li{
  padding:12px 0;
  border-bottom:1px solid #eef2f6;
}

.list-clean li:last-child{border-bottom:0}

.placeholder-box{
  min-height:260px;
  border:2px dashed #cbd5e1;
  border-radius:24px;
  background:#f8fafc;
  display:grid;
  place-items:center;
  color:#94a3b8;
  text-align:center;
  padding:18px;
}

.page-hero{display:none}

.breadcrumb{
  font-size:14px;
  color:#94a3b8;
  margin-bottom:10px;
}

.subnav{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin-top:20px;
}

.subnav a{
  padding:10px 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:#475467;
  font-weight:700;
}

.subnav a.active,
.subnav a:hover{
  background:#eff6ff;
  color:var(--primary);
  border-color:#cfe0f5;
}

.notice-toolbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  margin:24px 0;
}

.searchbox{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}

.searchbox input{
  min-width:260px;
  padding:14px 16px;
  border:1px solid var(--line);
  border-radius:14px;
  background:#fff;
}

.searchbox button{
  padding:14px 18px;
  border:0;
  border-radius:14px;
  background:var(--primary);
  color:#fff;
  font-weight:700;
  cursor:pointer;
}

.table-wrap{overflow:auto}

.notice-table{
  width:100%;
  border-collapse:collapse;
  background:#fff;
  border:1px solid var(--line);
  border-radius:20px;
  overflow:hidden;
}

.notice-table th,
.notice-table td{
  padding:16px 18px;
  border-bottom:1px solid #eef2f6;
  text-align:left;
  font-size:15px;
}

.notice-table th{
  background:#f8fafc;
  color:#475467;
  font-weight:800;
}

.notice-table tr:hover td{background:#fbfdff}

.badge{
  display:inline-flex;
  padding:6px 10px;
  border-radius:999px;
  background:#eff6ff;
  color:var(--primary);
  font-size:12px;
  font-weight:800;
}

.story-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:22px;
  margin-top:26px;
}

.story-thumb,
.gallery-item{
  border-bottom:1px solid var(--line);
  background:#f8fafc;
  display:grid;
  place-items:center;
  color:#94a3b8;
}

.story-card{overflow:hidden}

.story-thumb{aspect-ratio:16/10}

.story-body{padding:22px}

.gallery-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
  margin-top:26px;
}

.gallery-item{
  aspect-ratio:1/1;
  border:1px solid var(--line);
  border-radius:22px;
  box-shadow:var(--shadow);
  overflow:hidden;
  background-image:url("ns.png");
  background-repeat:no-repeat;
  background-position:center;
  background-size:cover;
  display:flex;
  justify-content:center;
  align-items:flex-end;
  padding:0 16px 14%;
  color:#fff;
  text-align:center;
  text-shadow:0 2px 8px rgba(0,0,0,.35);
  text-decoration:none;
}

.gallery-item:hover{
  transform:translateY(-4px);
  transition:.2s ease;
}

.link-list{
  display:grid;
  gap:14px;
  margin-top:22px;
}

.link-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 22px;
  border-radius:18px;
  background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  color:inherit;
  text-decoration:none;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease;
}

.link-card strong{color:#16324f}

.link-card:hover{
  transform:translateY(-2px);
  border-color:#cbd5e1;
  box-shadow:0 14px 30px rgba(15, 23, 42, 0.08);
}

.link-card small{color:#6b7280}

.site-footer{
  margin-top:auto;
  background:#0f2747;
  color:#e5e7eb;
  padding:56px 0 28px;
}

.footer-top{
  display:grid;
  grid-template-columns:1.4fr 1fr 0.9fr;
  gap:32px;
  align-items:start;
}

.footer-brand strong{
  display:block;
  margin-bottom:10px;
  font-size:20px;
  color:#ffffff;
}

.footer-brand p{
  margin:0;
  line-height:1.8;
  color:#cbd5e1;
}

.footer-contact h4,
.footer-related h4{
  margin:0 0 12px;
  font-size:15px;
  font-weight:700;
  color:#ffffff;
}

.footer-contact a{
  display:block;
  margin-bottom:8px;
  color:#cbd5e1;
  text-decoration:none;
  line-height:1.7;
}

.footer-contact a:hover{color:#ffffff}

.footer-related{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
}

.footer-nts{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:10px 12px;
  border:1px solid rgba(255,255,255,0.18);
  border-radius:14px;
  background:rgba(255,255,255,0.96);
  text-decoration:none;
  transition:box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.footer-nts:hover{
  transform:translateY(-2px);
  border-color:rgba(255,255,255,0.36);
  box-shadow:0 10px 24px rgba(0,0,0,0.18);
}

.footer-nts img{
  display:block;
  width:120px;
  height:auto;
}

.footer-bottom{
  margin-top:28px;
  padding-top:18px;
  border-top:1px solid rgba(255,255,255,0.14);
  color:#cbd5e1;
  font-size:14px;
}

.map-frame{
  width:100%;
  min-height:380px;
  border:0;
  border-radius:22px;
}

.info-grid{
  display:grid;
  grid-template-columns:repeat(3, minmax(0, 1fr));
  gap:24px;
  margin-top:32px;
}

.info-card{
  display:block;
  padding:28px 26px;
  border:1px solid #e5e7eb;
  border-radius:20px;
  background:linear-gradient(180deg, #ffffff 0%, #fbfcfe 100%);
  box-shadow:0 10px 30px rgba(15, 23, 42, 0.05);
  text-decoration:none;
  color:inherit;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease,
    background-color 0.2s ease;
}

.info-card:hover{
  transform:translateY(-4px);
  border-color:#cbd5e1;
  background:linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  box-shadow:0 18px 40px rgba(15, 23, 42, 0.1);
}

.info-card h3{
  margin:0 0 12px;
  font-size:22px;
  font-weight:700;
  color:#111827;
}

.info-card p{
  margin:0;
  font-size:15px;
  line-height:1.7;
  color:#6b7280;
}

.chairman-photo-box{
  min-height:260px;
  padding:0;
  overflow:hidden;
  background:#f6f8fa;
}

.chairman-photo{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center top;
}

.history-list li{padding:16px 0 16px 18px;}

.mo-br{
  display:none;
}

@media (max-width:1024px){
  .gnb,.header-cta{display:none}
  .mobile-toggle{display:flex}
  .hero-grid,.two-col,.footer-top,.card-grid,.info-grid{grid-template-columns:1fr 1fr}
  .gallery-grid{grid-template-columns:repeat(3,1fr)}
  .footer-related{grid-column:1 / -1}
}

@media (max-width:768px){
  .footer-top{
    grid-template-columns:1fr;
    gap:24px;
  }

  .footer-related{grid-column:auto}

  .footer-nts img{width:110px}

  .info-grid{
    grid-template-columns:1fr;
    gap:18px;
  }

  .info-card{
    padding:22px 20px;
    border-radius:16px;
  }

  .info-card h3{font-size:19px}

  .link-card{
    flex-direction:column;
    align-items:flex-start;
  }

  .mo-br{
    display:block;
    width:100%;
    height:0;
  }
}

@media (max-width:760px){
  .header-inner{min-height:78px}
  .brand-mark{width:56px;height:56px;flex-basis:56px}
  .brand-text small{font-size:9px;letter-spacing:.18em}
  .brand-text strong{font-size:18px}
  .page-topbar-inner{min-height:48px}
  .page-topbar-main{display:block;margin:0 0 2px 0;font-size:12px}
  .page-topbar-title{font-size:15px}
  .hero{padding:54px 0 64px}
  .hero-grid,
  .two-col,
  .card-grid,
  .story-grid,
  .footer-top,
  .info-grid{grid-template-columns:1fr}
  .gallery-grid{grid-template-columns:repeat(2,1fr)}
  .section,.page-hero{padding-top:40px;padding-bottom:40px}
  .searchbox input{min-width:0;width:100%}
  .notice-table th:nth-child(1),
  .notice-table td:nth-child(1){display:none}
  .hero-visual-frame{padding:0;border-radius:24px}
  .history-list li{padding-left:12px;}
}