:root{
  --bg:#f3f5ef;
  --bg2:#e8ede4;
  --text:#142018;
  --muted:#56655b;
  --line:rgba(20,32,24,.12);
  --green:#1e3a2c;
  --green2:#2d4a39;
  --green3:#48614f;
  --accent:#9fb79e;
  --white:#f7f8f4;
  --shadow:0 12px 40px rgba(12,24,16,.12);
  --radius:24px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--text);
  background:var(--bg);
  font-family:"Malgun Gothic","맑은 고딕","Noto Sans KR",Arial,sans-serif;
  line-height:1.75;
  word-break:keep-all;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{width:min(1280px,calc(100% - 48px));margin:0 auto}
.section{padding:96px 0}
.section.alt{background:linear-gradient(180deg,var(--bg),var(--bg2))}
.kicker{
  display:flex;align-items:center;gap:14px;
  font-size:13px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:#d7e1d4
}
.kicker:before{content:"";display:block;width:42px;height:1px;background:#d7e1d4}
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  backdrop-filter:saturate(180%) blur(16px);
  background:rgba(245,247,241,.88);
  border-bottom:1px solid rgba(20,32,24,.08);
}
.header-inner{
  height:84px;display:flex;align-items:center;justify-content:space-between;gap:24px
}
.brand img{height:44px;width:auto}
.nav{display:flex;align-items:center;gap:28px}
.nav a{
  font-size:17px;font-weight:700;position:relative;padding:8px 0;transition:color .25s ease
}
.nav a:after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;background:var(--green);transform:scaleX(0);transform-origin:left;transition:transform .28s ease
}
.nav a:hover,.nav a.active{color:var(--green)}
.nav a:hover:after,.nav a.active:after{transform:scaleX(1)}
.mobile-toggle{display:none;background:none;border:0;font-size:28px;color:var(--green)}
.hero{
  min-height:100svh;display:flex;align-items:flex-end;
  background:
    linear-gradient(90deg, rgba(14,26,18,.78) 0%, rgba(18,33,23,.58) 42%, rgba(25,42,30,.36) 100%),
    url("assets/images/hero.jpg") center center/cover no-repeat;
  color:var(--white);
  padding:140px 0 72px;
}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,1.1fr) minmax(340px,420px);gap:56px;align-items:end
}
.hero-copy{max-width:820px}
.hero h1{
  margin:18px 0 24px;font-size:clamp(50px,8vw,96px);line-height:1.08;letter-spacing:-.06em;
  font-weight:900;text-shadow:0 2px 12px rgba(0,0,0,.18)
}
.hero p.lead{
  max-width:720px;font-size:clamp(18px,2vw,24px);line-height:1.8;color:#eef3ea
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:54px;padding:0 26px;border-radius:999px;font-weight:800;border:1px solid rgba(247,248,244,.45);transition:.25s
}
.btn.primary{background:var(--white);color:var(--green)}
.btn.ghost{background:rgba(247,248,244,.06);color:var(--white)}
.btn:hover{transform:translateY(-1px)}
.hero-card{
  background:rgba(233,240,232,.12);border:1px solid rgba(247,248,244,.22);
  box-shadow:var(--shadow);border-radius:32px;padding:28px
}
.hero-card h3{margin:0 0 18px;font-size:34px;line-height:1.2}
.system-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px
}
.system-grid .item{
  background:rgba(247,248,244,.08);border:1px solid rgba(247,248,244,.16);
  border-radius:22px;padding:20px 18px;min-height:128px
}
.system-grid h4{margin:0 0 8px;font-size:22px}
.system-grid p{margin:0;color:#edf2ea;font-size:15px;line-height:1.65}
.split{
  display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:56px;align-items:start
}
.eyebrow{font-size:14px;font-weight:800;letter-spacing:.18em;text-transform:uppercase;color:var(--green3)}
.h2{
  margin:14px 0 20px;font-size:clamp(34px,4vw,56px);line-height:1.14;letter-spacing:-.03em
}
.copy{font-size:19px;color:#203026}
.copy p{margin:0 0 18px}
.message-box{
  background:linear-gradient(180deg,#203527,#15251b);
  color:#eef3ea;border-radius:28px;padding:40px;border:1px solid rgba(255,255,255,.08);box-shadow:var(--shadow)
}
.message-box p{margin:0 0 18px;color:#eef3ea}
.signature-wrap{margin-top:24px;display:flex;flex-direction:column;align-items:flex-end;gap:8px}
.signature-name{font-size:18px;font-weight:800}
.cards4{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px
}
.card{
  background:#fff;border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:0 8px 28px rgba(15,28,20,.06)
}
.card h3{margin:0 0 10px;font-size:26px}
.card p{margin:0;color:var(--muted)}
.statbar{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-top:34px
}
.stat{
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px 20px;text-align:center
}
.stat strong{display:block;font-size:28px;color:var(--green)}
.stat span{font-size:14px;color:var(--muted)}
.photo-teaser{
  display:grid;grid-template-columns:1.2fr .8fr;gap:18px
}
.photo-teaser img{border-radius:24px;height:100%;object-fit:cover;box-shadow:var(--shadow)}
.stack{display:grid;gap:18px}
.cta-band{
  background:linear-gradient(135deg,var(--green2),#18281e);color:#f0f4ef;border-radius:32px;padding:36px;display:flex;justify-content:space-between;align-items:center;gap:24px
}
.footer{
  background:#142018;color:#d9e3d5;padding:34px 0 46px;margin-top:60px
}
.footer-grid{display:grid;grid-template-columns:1fr auto;gap:16px;align-items:end}
.footer small{display:block;color:#94a697;line-height:1.9}
.page-hero{
  padding:164px 0 72px;background:linear-gradient(180deg,#203527,#16241b);color:#f5f7f2
}
.page-hero p{max-width:760px;color:#e5ece3;font-size:19px}
.list-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.doc-list{display:grid;gap:14px}
.doc-item{
  display:flex;align-items:center;justify-content:space-between;gap:14px;padding:18px 20px;border:1px solid var(--line);
  border-radius:18px;background:#fff
}
.doc-item span{color:var(--muted);font-size:14px}
.gallery-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.gallery-card{
  position:relative;overflow:hidden;border-radius:22px;background:#fff;border:1px solid var(--line);box-shadow:0 8px 28px rgba(15,28,20,.08)
}
.gallery-card img{aspect-ratio:4/3;object-fit:cover;width:100%;transition:.35s}
.gallery-card:hover img{transform:scale(1.03)}
.gallery-card .cap{padding:14px 16px;font-weight:700}
.figure-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.figure{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px;box-shadow:0 8px 28px rgba(15,28,20,.06)}
.figure img{border-radius:14px;max-height:460px;object-fit:contain;margin:0 auto}
.figure figcaption{margin-top:10px;color:var(--muted);font-size:15px}
.table{
  width:100%;border-collapse:collapse;background:#fff;border-radius:22px;overflow:hidden;box-shadow:0 8px 28px rgba(15,28,20,.06)
}
.table th,.table td{padding:16px 18px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.table th{background:#edf2ec;color:var(--green);font-size:15px}
.table tr:last-child td{border-bottom:0}
.badge{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#edf2ec;color:var(--green);font-size:13px;font-weight:800}
.quick-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}
.quick-links a{padding:10px 14px;border-radius:999px;background:#edf2ec;color:var(--green);font-weight:700;font-size:14px}
.notice{padding:16px 18px;background:#fff;border-radius:18px;border:1px solid var(--line);color:var(--muted)}
@media (max-width:1080px){
  .hero-grid,.split,.photo-teaser,.cards4,.statbar,.list-grid,.gallery-grid,.figure-grid,.footer-grid{grid-template-columns:1fr}
  .hero-card{max-width:520px}
}
@media (max-width:880px){
  .site-header{backdrop-filter:none}
  .header-inner{height:72px}
  .mobile-toggle{display:block}
  .nav{display:none;position:absolute;top:72px;left:0;right:0;background:rgba(245,247,241,.98);padding:18px 24px 22px;border-bottom:1px solid rgba(20,32,24,.08);flex-direction:column;align-items:flex-start;gap:16px}
  .nav.open{display:flex}
  .hero{padding-top:120px}
  .hero h1{font-size:clamp(44px,12vw,72px)}
  .container{width:min(100% - 32px, 1280px)}
  .section{padding:76px 0}
}
@media (max-width:560px){
  .brand img{height:34px}
  .hero{min-height:auto;padding-bottom:42px}
  .hero-card{padding:22px}
  .system-grid{grid-template-columns:1fr}
  .section{padding:64px 0}
  .h2{font-size:34px}
  .copy{font-size:17px}
  .btn{min-height:50px;padding:0 20px}
}


.lightbox{position:fixed;inset:0;background:rgba(8,14,10,.86);display:none;align-items:center;justify-content:center;padding:24px;z-index:9999}
.lightbox.open{display:flex}
.lightbox img{max-width:min(1400px,92vw);max-height:88vh;border-radius:18px;box-shadow:0 18px 48px rgba(0,0,0,.35);background:#fff}
.lightbox .close{position:absolute;top:24px;right:28px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:#fff;width:44px;height:44px;border-radius:999px;font-size:28px;line-height:40px;text-align:center;cursor:pointer}
.gallery-card{cursor:zoom-in}

.hero-slider{position:relative;overflow:hidden;background:none}
.hero-slides{position:absolute;inset:0;z-index:0}
.hero-slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transition:opacity 1s ease}
.hero-slide.is-active{opacity:1}
.hero > .container{position:relative;z-index:1}
.hero-dots{display:flex;gap:10px;margin-top:28px}
.hero-dots .dot{width:14px;height:14px;border-radius:999px;border:1px solid rgba(255,255,255,.55);background:transparent;cursor:pointer;padding:0}
.hero-dots .dot.is-active{background:#fff}
.longform p{font-size:1.06em}
.timeline{position:relative;margin-top:16px}
.timeline:before{content:"";position:absolute;left:117px;top:0;bottom:0;width:2px;background:rgba(30,58,44,.18)}
.timeline-item{display:grid;grid-template-columns:96px 1fr;gap:42px;position:relative;padding:0 0 28px 0}
.timeline-item .year{font-size:30px;font-weight:900;color:var(--green);text-align:right;position:relative}
.timeline-item .year:after{content:"";position:absolute;right:-24px;top:12px;width:14px;height:14px;background:var(--green);border-radius:50%;box-shadow:0 0 0 6px rgba(30,58,44,.10)}
.timeline-item .content{background:#fff;border:1px solid var(--line);border-radius:24px;padding:26px;box-shadow:0 8px 28px rgba(15,28,20,.06)}
.timeline-item h3{margin:0 0 10px;font-size:28px}
.timeline-item p{margin:0;color:var(--muted)}
.viewer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.viewer-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:18px;box-shadow:0 8px 28px rgba(15,28,20,.06)}
.viewer-head{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-bottom:12px}
.viewer-head h3{margin:0;font-size:24px;line-height:1.3}
.mini-link{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 14px;border-radius:999px;background:#edf2ec;color:var(--green);font-size:14px;font-weight:800;white-space:nowrap}
.pdf-frame{border-radius:18px;overflow:hidden;border:1px solid var(--line);background:#eef2ee;aspect-ratio:4/3}
.pdf-frame iframe{width:100%;height:100%;border:0;background:#fff}
.two-col{grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width:1080px){.viewer-grid,.two-col{grid-template-columns:1fr}.timeline:before{left:18px}.timeline-item{grid-template-columns:1fr;padding-left:42px}.timeline-item .year{text-align:left}.timeline-item .year:after{left:-31px;right:auto}}
@media (max-width:560px){.viewer-head{flex-direction:column;align-items:flex-start}.viewer-head h3{font-size:21px}.timeline-item .year{font-size:24px}}