:root{
  --ink:#1f2633;
  --ink-soft:#556070;
  --accent:#da1f2f;
  --accent-soft:#fff1f3;
  --navy:#1b2432;
  --navy-soft:#eef3f9;
  --line:#dde6f0;
  --line-strong:#cfd9e6;
  --surface:#ffffff;
  --surface-alt:#f6f9fc;
  --surface-muted:#f2f5f9;
  --shadow:0 22px 48px rgba(24,39,75,.08);
  --shadow-soft:0 12px 28px rgba(24,39,75,.06);
  --radius-xl:32px;
  --radius-lg:24px;
  --radius-md:18px;
  --max:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Malgun Gothic","Apple SD Gothic Neo","Noto Sans KR",sans-serif;
  color:var(--ink);
  background:
    radial-gradient(circle at top right, rgba(218,31,47,.06), transparent 24%),
    linear-gradient(180deg,#fbfcfe 0%,#f5f8fc 56%,#fbfcfe 100%);
  line-height:1.7;
}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit}
.container{width:min(var(--max), calc(100% - 40px));margin:0 auto}

.topbar{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(255,255,255,.9);
  border-bottom:1px solid rgba(31,38,51,.08);
  backdrop-filter:blur(14px);
}
.nav{
  min-height:84px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:14px}
.brand img{height:56px;width:auto;object-fit:contain}
.brand-text strong{display:block;font-size:1.1rem;letter-spacing:-.02em}
.brand-text span{display:block;color:var(--ink-soft);font-size:.86rem}
.menu{display:flex;align-items:center;gap:28px}
.menu a{
  position:relative;
  padding:10px 0;
  font-size:.98rem;
  font-weight:800;
  color:#2b3546;
}
.menu a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:2px;
  width:0;
  height:3px;
  border-radius:999px;
  background:linear-gradient(90deg,var(--accent),#ff7d88);
  transition:.24s ease;
}
.menu a:hover::after,.menu a.active::after{width:100%}
.menu-btn{
  display:none;
  border:0;
  background:none;
  color:var(--navy);
  font-size:1.8rem;
}

.hero{
  position:relative;
  overflow:hidden;
  padding:42px 0 24px;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 84% 20%, rgba(218,31,47,.14), transparent 18%),
    radial-gradient(circle at 12% 12%, rgba(27,36,50,.05), transparent 22%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.08fr) minmax(420px,.92fr);
  gap:36px;
  align-items:center;
  min-height:720px;
}
.hero-copy{
  display:grid;
  gap:24px;
}
.kicker{
  display:inline-flex;
  align-items:center;
  gap:10px;
  width:max-content;
  padding:10px 16px;
  border-radius:999px;
  background:#fff;
  border:1px solid rgba(31,38,51,.08);
  box-shadow:var(--shadow-soft);
  font-size:.92rem;
  font-weight:800;
  color:#334156;
}
.kicker::before{
  content:"";
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--accent);
}
.hero h1{
  margin:0;
  max-width:720px;
  font-size:clamp(1.45rem,2.8vw,2.6rem);
  line-height:1.18;
  letter-spacing:-.05em;
}
.lead{
  margin:0;
  max-width:680px;
  color:#49576a;
  font-size:1.08rem;
}
.cta{display:flex;flex-wrap:wrap;gap:14px}
.btn{
  min-height:56px;
  padding:0 24px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:16px;
  font-weight:900;
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{
  color:#fff;
  background:linear-gradient(135deg,#1c2635,#cf1728);
  box-shadow:0 18px 36px rgba(207,23,40,.16);
}
.btn-secondary{
  background:#fff;
  border:1px solid var(--line-strong);
  color:var(--navy);
}
.contact-strip,.metric-row,.grid-3,.grid-2,.split-grid,.steps,.contact-box,.footer-grid,.form-grid,.page-link-grid,.business-grid,.gallery-grid{
  display:grid;
  gap:24px;
}
.contact-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
.metric-row{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-2,.split-grid,.contact-box{grid-template-columns:repeat(2,minmax(0,1fr))}
.steps{grid-template-columns:repeat(4,minmax(0,1fr))}
.form-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.page-link-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
.business-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.gallery-grid{grid-template-columns:1.1fr .9fr}

.panel,.card,.glass-card,.info-box,.metric-card,.step,.footer-card,.page-link,.contact-card{
  background:rgba(255,255,255,.94);
  border:1px solid rgba(207,217,230,.82);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
}
.card,.metric-card,.step,.contact-card{padding:30px}
.card h3,.card h4,.step h3,.contact-card h3{margin:0 0 12px}
.card p,.step p,.contact-card p,.panel p{margin:0;color:var(--ink-soft)}
.info-box{
  padding:20px 22px;
  background:#fff;
}
.info-box.dark{
  color:#fff;
  border:0;
  background:linear-gradient(135deg,#1a2432,#c61627);
}
.info-box.dark p{color:rgba(255,255,255,.84)}
.hero-visual{
  position:relative;
  display:grid;
  align-content:start;
}
.hero-photo-large,.hero-photo-small,.image-banner,.gallery-feature,.gallery-stack img{
  overflow:hidden;
  border-radius:28px;
  border:1px solid rgba(207,217,230,.82);
  box-shadow:var(--shadow);
  background:#fff;
}
.hero-photo-large,.hero-photo-small{position:relative}
.hero-photo-large img{width:100%;height:520px;object-fit:cover}
.hero-visual-bottom{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:18px;
}
.hero-photo-small img{width:100%;height:360px;object-fit:cover}
.hero-photo-small{height:100%}
.hero-photo-small img{height:100%}
.image-badge{
  position:absolute;
  left:18px;
  bottom:18px;
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(27,36,50,.82);
  color:#fff;
  font-size:.84rem;
  font-weight:800;
  backdrop-filter:blur(8px);
}
.glass-card{
  padding:24px;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(12px);
}
.mini-title{
  color:#738196;
  font-size:.8rem;
  font-weight:800;
  text-transform:uppercase;
  letter-spacing:.12em;
}
.stats{
  margin-top:16px;
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;
}
.glass-card h3{
  margin:10px 0 0;
  font-size:1.35rem;
  line-height:1.35;
  letter-spacing:-.03em;
}
.overview-list{
  margin-top:18px;
  display:grid;
  gap:12px;
}
.overview-item{
  padding:16px 18px;
  border:1px solid rgba(207,217,230,.82);
  border-radius:18px;
  background:linear-gradient(180deg,#ffffff,#f7f9fc);
}
.overview-item small{
  display:block;
  margin-bottom:6px;
  color:var(--ink-soft);
}
.overview-item strong{
  display:block;
  color:var(--navy);
  font-size:1rem;
  line-height:1.5;
}
.stat{
  padding:18px;
  border-radius:18px;
  border:1px solid rgba(207,217,230,.82);
  background:linear-gradient(180deg,#ffffff,#f6f8fb);
}
.stat small{display:block;margin-bottom:6px;color:var(--ink-soft)}
.stat strong{display:block;font-size:1.1rem;line-height:1.4;color:var(--navy)}

.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-alt{background:linear-gradient(180deg,rgba(238,243,249,.72),rgba(246,249,252,.92))}
.section-head{display:grid;gap:12px;margin-bottom:28px}
.section-head h2{
  margin:0;
  font-size:clamp(1.9rem,3vw,3rem);
  line-height:1.12;
  letter-spacing:-.04em;
}
.section-head p{margin:0;max-width:820px;color:var(--ink-soft)}

.metric-card{
  display:grid;
  gap:10px;
  background:linear-gradient(180deg,#ffffff,#f8fafc);
}
.metric-card strong{font-size:1.8rem;letter-spacing:-.04em}
.metric-card span{font-size:.96rem;color:var(--ink-soft)}

.icon-wrap{
  width:72px;
  height:72px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:22px;
  margin-bottom:18px;
  border:1px solid rgba(207,217,230,.82);
  background:linear-gradient(180deg,#fff,#f4f7fb);
}
.icon-wrap img{width:42px;height:42px}

.feature-list{display:grid;gap:16px}
.feature{
  display:flex;
  gap:14px;
  align-items:flex-start;
}
.feature .dot{
  flex:0 0 10px;
  width:10px;
  height:10px;
  margin-top:10px;
  border-radius:50%;
  background:var(--accent);
}
.feature span,.muted{color:var(--ink-soft)}

.split-copy{
  display:grid;
  align-content:center;
  gap:18px;
}
.compact-title{
  font-size:clamp(1.15rem,1.7vw,1.65rem);
  line-height:1.18;
  letter-spacing:-.03em;
}
.eyebrow{
  color:var(--accent);
  font-size:.85rem;
  font-weight:900;
  text-transform:uppercase;
  letter-spacing:.1em;
}
.check-list{
  display:grid;
  gap:12px;
}
.check-list div{
  padding:14px 16px;
  border-radius:16px;
  background:#fff;
  border:1px solid rgba(207,217,230,.82);
  color:#334156;
}

.band{
  color:var(--ink);
  background:
    radial-gradient(circle at top right, rgba(218,31,47,.08), transparent 20%),
    linear-gradient(180deg,#f9fbfe 0%,#eef3f8 100%);
}
.band .section-head p{color:var(--ink-soft)}
.steps{gap:18px}
.step{
  background:linear-gradient(180deg,#ffffff,#f7f9fc);
}
.step .num{
  margin-bottom:10px;
  font-weight:900;
  color:var(--accent);
}

.table{
  width:100%;
  border-collapse:collapse;
  overflow:hidden;
  border-radius:24px;
  background:#fff;
  box-shadow:var(--shadow);
}
.table th,.table td{
  padding:16px 18px;
  text-align:left;
  border-bottom:1px solid #e5edf5;
  vertical-align:top;
}
.table th{
  width:168px;
  background:#f6f9fc;
  color:#516073;
  font-size:.95rem;
}

.page-hero{
  position:relative;
  overflow:hidden;
  padding:56px 0 40px;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(110deg, rgba(250,252,255,.96), rgba(247,250,253,.86)),
    url("assets/server_room.jpg") center/cover no-repeat;
}
.page-hero.company::before{
  background:
    linear-gradient(110deg, rgba(250,252,255,.94), rgba(247,250,253,.86)),
    url("assets/engineer_server.jpg") center/cover no-repeat;
}
.page-hero.business::before{
  background:
    linear-gradient(110deg, rgba(250,252,255,.94), rgba(247,250,253,.88)),
    url("assets/fiber_patch.jpg") center/cover no-repeat;
}
.page-hero .container{position:relative}
.page-hero p{max-width:760px;color:#4d5c70}
.ribbon-divider{
  width:150px;
  height:8px;
  margin-top:18px;
  border-radius:999px;
  background:linear-gradient(90deg,#1c2635,#8a97ab,#da1f2f);
}

.image-banner img,.image-banner video{width:100%;height:440px;object-fit:cover;display:block}
.split-grid > .image-banner{height:100%}
.split-grid > .image-banner img,.split-grid > .image-banner video{height:100%}
.media-banner{
  position:relative;
  height:auto !important;
  min-height:0;
  aspect-ratio:1 / .86;
  max-height:460px;
  align-self:start;
}
.media-banner > video,
.media-banner > img,
.media-fill{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.gallery-feature img{width:100%;height:100%;min-height:420px;object-fit:cover}
.gallery-stack{
  display:grid;
  gap:24px;
}
.gallery-stack img{width:100%;height:198px;object-fit:cover}

.badge{
  display:inline-flex;
  align-items:center;
  padding:6px 12px;
  border-radius:999px;
  background:var(--accent-soft);
  color:#b81223;
  border:1px solid #ffd6dc;
  font-size:.84rem;
  font-weight:900;
}
.page-link{
  padding:26px;
  display:grid;
  gap:10px;
}
.page-link strong{font-size:1.1rem}
.page-link p{margin:0;color:var(--ink-soft)}

.org-wrap img{
  width:100%;
  border-radius:28px;
  border:1px solid rgba(207,217,230,.82);
  box-shadow:var(--shadow);
  background:#fff;
}
.contact-card{
  display:grid;
  gap:12px;
}
.success-shell{
  min-height:calc(100vh - 220px);
  display:grid;
  place-items:center;
}
.success-card{
  max-width:720px;
  padding:42px;
  text-align:center;
}
.success-card h1{margin:0 0 16px}
.success-card p{margin:0;color:var(--ink-soft)}
.success-actions{
  margin-top:26px;
  display:flex;
  justify-content:center;
  gap:14px;
  flex-wrap:wrap;
}
label{
  display:block;
  margin-bottom:8px;
  color:#39485c;
  font-weight:700;
}
input,textarea,select{
  width:100%;
  padding:14px 16px;
  border-radius:16px;
  border:1px solid #d6e0eb;
  background:#fff;
  color:var(--ink);
}
textarea{min-height:160px;resize:vertical}

.footer{
  margin-top:56px;
  padding:34px 0 48px;
  background:linear-gradient(180deg,#f5f8fc,#ecf2f8);
  border-top:1px solid rgba(207,217,230,.9);
}
.footer-grid{
  grid-template-columns:1.3fr 1fr 1fr;
  align-items:start;
}
.footer p{margin:.45rem 0;color:#526073}
.footer strong{color:var(--ink)}
.footer .brand-text strong,
.footer strong{
  font-size:.8rem;
}

@media (max-width: 1180px){
  .hero-grid,.grid-2,.split-grid,.contact-box,.footer-grid,.page-link-grid,.business-grid,.gallery-grid{grid-template-columns:1fr}
  .grid-3,.metric-row,.steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-grid{min-height:auto}
}
@media (max-width: 860px){
  .menu{
    display:none;
    position:absolute;
    top:84px;
    left:0;
    right:0;
    padding:18px 20px 22px;
    background:rgba(255,255,255,.97);
    border-bottom:1px solid rgba(31,38,51,.08);
    flex-direction:column;
    align-items:flex-start;
    gap:14px;
  }
  .menu.open{display:flex}
  .menu-btn{display:block}
  .hero{padding-top:18px}
  .hero-grid,.contact-strip,.hero-visual-bottom,.stats,.form-grid{grid-template-columns:1fr}
  .image-badge{
    left:14px;
    right:14px;
    bottom:14px;
    justify-content:center;
    text-align:center;
  }
  .hero h1{
    font-size:clamp(1.4rem,5.2vw,2.2rem);
    line-height:1.16;
    letter-spacing:-.04em;
  }
  .section{padding:72px 0}
  .page-hero{padding:48px 0 34px}
}
@media (max-width: 640px){
  .container{width:min(var(--max), calc(100% - 28px))}
  .grid-3,.metric-row,.steps{grid-template-columns:1fr}
  .card,.metric-card,.step,.contact-card,.page-link{padding:24px}
  .brand-text span{font-size:.8rem}
  .hero h1{font-size:clamp(1.3rem,6.2vw,1.85rem);line-height:1.22;letter-spacing:-.03em}
  .lead{font-size:1rem}
  .hero-photo-large img{height:360px}
  .hero-photo-small img,.gallery-stack img{height:180px}
  .image-banner img{height:300px}
  .media-banner{
    aspect-ratio:4 / 3;
    max-height:none;
  }
}