:root{
  --primary:#123A5C;
  --primary-dark:#0A2740;
  --teal:#0E8074;
  --teal-light:#12A296;
  --gray-900:#1C262E;
  --gray-700:#3E4C56;
  --gray-500:#6B7A85;
  --gray-200:#E2E8ED;
  --gray-100:#F2F5F7;
  --bg:#FFFFFF;
  --radius:14px;
  --shadow:0 10px 30px rgba(18,58,92,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Pretendard","Apple SD Gothic Neo","Malgun Gothic",sans-serif;color:var(--gray-900);background:var(--bg);line-height:1.6;word-break:keep-all}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,p,ul{margin:0}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.badge{display:inline-block;padding:6px 14px;border-radius:100px;background:rgba(14,128,116,.12);color:var(--teal);font-size:.85rem;font-weight:700;letter-spacing:.02em}

/* Header */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(6px);border-bottom:1px solid var(--gray-200)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:8px;font-weight:800;font-size:1.15rem;color:var(--primary)}
.logo img{height:36px;width:auto}
.site-nav{display:flex;gap:22px;margin-left:auto;font-weight:600;font-size:.95rem;color:var(--gray-700)}
.site-nav a:hover{color:var(--teal)}
.header-cta{background:var(--teal);color:#fff;padding:10px 20px;border-radius:100px;font-weight:700;font-size:.9rem;white-space:nowrap}
.header-cta:hover{background:var(--teal-light)}
.menu-toggle{display:none;background:none;border:none;font-size:1.5rem;color:var(--primary);cursor:pointer;margin-left:8px}
.mobile-nav{display:none;flex-direction:column;background:#fff;border-top:1px solid var(--gray-200);padding:14px 20px 20px}
.mobile-nav a{padding:12px 0;border-bottom:1px solid var(--gray-100);font-weight:600}

/* Hero */
.hero{position:relative;margin-top:72px;min-height:560px;display:flex;align-items:center;overflow:hidden;background:var(--primary-dark)}
.hero-slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transition:opacity .8s ease}
.hero-slide.active{opacity:1}
.hero-slide::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(10,39,64,.88),rgba(14,128,116,.55));opacity:0}
.hero-video{min-height:80vh}
.hero-bg-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.hero-inner{position:relative;z-index:2;color:#fff;padding:120px 0 70px;max-width:680px}
.hero-inner .badge{background:rgba(255,255,255,.16);color:#fff;margin-bottom:18px}
.hero-inner h1{font-size:2.5rem;font-weight:800;line-height:1.3;margin-bottom:18px}
.hero-inner p{font-size:1.08rem;color:rgba(255,255,255,.9);margin-bottom:30px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-controls{position:absolute;bottom:24px;left:0;right:0;z-index:3;display:flex;justify-content:center;align-items:center;gap:16px}
.hero-arrow{background:rgba(255,255,255,.18);border:none;color:#fff;width:38px;height:38px;border-radius:50%;cursor:pointer;font-size:1.1rem}
.hero-dots{display:flex;gap:8px}
.hero-dots span{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.4);cursor:pointer}
.hero-dots span.active{background:#fff;width:22px;border-radius:5px;transition:.3s}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 26px;border-radius:10px;font-weight:700;font-size:.98rem;cursor:pointer;border:none}
.btn-accent{background:var(--teal);color:#fff}
.btn-accent:hover{background:var(--teal-light)}
.btn-outline{background:rgba(255,255,255,.08);border:1.5px solid rgba(255,255,255,.6);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.18)}
.btn-ghost{background:#fff;border:1.5px solid var(--primary);color:var(--primary)}
.btn-lg{padding:16px 32px;font-size:1.05rem}

/* Sections */
section{padding:70px 0}
.section-head{max-width:640px;margin:0 auto 44px;text-align:center}
.section-head h2{font-size:1.9rem;font-weight:800;color:var(--primary-dark);margin:14px 0 12px}
.section-head p{color:var(--gray-500)}
.section-gray{background:var(--gray-100)}

/* Case grid (keyword cards) */
.case-track{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}

/* Region page square photos */
.region-photos{display:flex;justify-content:center;gap:20px;flex-wrap:wrap}
.region-photos img{width:280px;height:280px;object-fit:cover;border-radius:var(--radius);border:1px solid var(--gray-200);box-shadow:var(--shadow)}

/* Region hub grid */
.region-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}

/* Region split layout (text + stacked photos) */
.region-split{display:grid;grid-template-columns:1.3fr 1fr;gap:32px;align-items:start}
.region-split-photos{display:flex;flex-direction:column;gap:16px}
.region-split-photos img{width:100%;height:220px;object-fit:cover;border-radius:var(--radius);border:1px solid var(--gray-200);box-shadow:var(--shadow)}

/* Site photo gallery */
.gallery-grid{display:flex;gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;-ms-overflow-style:none;scrollbar-width:none}
.gallery-grid::-webkit-scrollbar{display:none}
.gallery-grid img{flex:0 0 200px;scroll-snap-align:start;width:200px;height:150px;object-fit:cover;border-radius:10px;border:1px solid var(--gray-200)}
.case-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease;border:1px solid var(--gray-200)}
.case-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(18,58,92,.16)}
.case-card img{height:190px;object-fit:cover;width:100%}
.case-card .case-body{padding:20px}
.case-tag{display:inline-block;font-size:.75rem;font-weight:700;color:var(--teal);background:rgba(14,128,116,.1);padding:4px 10px;border-radius:100px;margin-bottom:10px}
.case-card h3{font-size:1.08rem;font-weight:800;margin-bottom:8px;line-height:1.4}
.case-card p{font-size:.9rem;color:var(--gray-500)}

/* Service intro grid */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.service-item{background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius);padding:26px 22px;text-align:left}
.service-item .icon{width:46px;height:46px;border-radius:12px;background:rgba(18,58,92,.08);display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin-bottom:16px}
.service-item h3{font-size:1.05rem;font-weight:800;margin-bottom:8px}
.service-item p{font-size:.9rem;color:var(--gray-500)}

/* Process timeline */
.process-list{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.process-step{position:relative;background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius);padding:28px 20px}
.process-step .step-no{font-size:.8rem;font-weight:800;color:var(--teal);margin-bottom:10px}
.process-step h3{font-size:1rem;font-weight:800;margin-bottom:8px}
.process-step p{font-size:.87rem;color:var(--gray-500)}

/* Before/After */
.ba-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.ba-card{border-radius:var(--radius);overflow:hidden;border:1px solid var(--gray-200);background:#fff;transition:transform .25s ease,box-shadow .25s ease}
.ba-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.ba-card img{height:220px;object-fit:cover;width:100%}
.ba-card .ba-label{padding:14px 18px;font-weight:700;font-size:.92rem;color:var(--gray-700)}

/* Body copy */
.copy-block{max-width:820px;margin:0 auto}
.copy-block h2{font-size:1.5rem;font-weight:800;color:var(--primary-dark);margin:36px 0 14px}
.copy-block h2:first-child{margin-top:0}
.copy-block p{color:var(--gray-700);margin-bottom:16px;font-size:1rem}
.copy-block ul{margin:0 0 16px;padding-left:20px;color:var(--gray-700)}
.copy-block li{margin-bottom:6px}

/* CTA section */
.cta-section{background:radial-gradient(circle at 30% 20%,rgba(255,255,255,.12),transparent 60%),linear-gradient(120deg,var(--primary-dark),var(--teal));color:#fff;text-align:center}
.cta-section h2{font-size:1.9rem;font-weight:800;margin-bottom:14px}
.cta-section p{color:rgba(255,255,255,.88);margin-bottom:28px}
.trust-badges{display:flex;justify-content:center;gap:26px;list-style:none;padding:0;margin:32px 0 0;flex-wrap:wrap;font-size:.88rem;color:rgba(255,255,255,.85)}

/* Breadcrumb */
.breadcrumb{padding:18px 0 0;font-size:.85rem;color:var(--gray-500)}
.breadcrumb a{color:var(--gray-500)}
.breadcrumb a:hover{color:var(--teal)}
.breadcrumb span{margin:0 6px}

/* Related pages */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.related-card{border:1px solid var(--gray-200);border-radius:12px;padding:18px;font-weight:700;font-size:.92rem;transition:.2s}
.related-card:hover{border-color:var(--teal);color:var(--teal)}

/* Consult page */
.consult-hero{background:linear-gradient(120deg,var(--primary-dark),var(--primary));color:#fff;margin-top:72px;padding:90px 0 60px;text-align:center}
.consult-hero h1{font-size:2.1rem;font-weight:800;margin-bottom:14px}
.consult-hero p{color:rgba(255,255,255,.88);max-width:560px;margin:0 auto}
.consult-actions{display:flex;gap:16px;justify-content:center;margin-top:34px;flex-wrap:wrap}
.consult-actions .btn{min-width:220px}
.process-flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.flow-step{text-align:center}
.flow-step .circle{width:52px;height:52px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;margin:0 auto 12px}
.flow-step h3{font-size:.95rem;font-weight:800;margin-bottom:6px}
.flow-step p{font-size:.85rem;color:var(--gray-500)}

/* Footer */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.78);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.12)}
.site-footer h3{color:#fff;font-size:.95rem;margin-bottom:16px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:10px;font-size:.9rem}
.site-footer li a:hover{color:var(--teal-light)}
.footer-biz p{font-size:.85rem;margin:0 0 6px;color:rgba(255,255,255,.65)}
.footer-bottom{padding:22px 0;text-align:center;font-size:.8rem;color:rgba(255,255,255,.5)}

/* Floating buttons */
.floating-buttons{position:fixed;right:20px;bottom:24px;z-index:200;display:flex;flex-direction:column;gap:12px;align-items:flex-end}
.fab{width:auto;height:56px;padding:0 22px;border-radius:100px;background:var(--teal);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;box-shadow:0 10px 24px rgba(14,128,116,.4);position:relative;border:none;cursor:pointer;font-size:.95rem;gap:8px}
.pulse-ring{position:absolute;inset:0;border-radius:100px;border:2px solid var(--teal);animation:pulse 3s infinite}
@keyframes pulse{0%{transform:scale(1);opacity:.7}70%{transform:scale(1.35);opacity:0}100%{opacity:0}}
.fab-top{width:44px;height:44px;padding:0;border-radius:50%;background:var(--primary);box-shadow:0 8px 18px rgba(18,58,92,.35)}

/* Sitemap page */
.sitemap-hero{background:linear-gradient(120deg,var(--primary-dark),var(--teal));color:#fff;margin-top:72px;padding:80px 0 50px;text-align:center}
.sitemap-hero h1{font-size:2rem;font-weight:800;margin-bottom:10px}
.sitemap-filters{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin:24px 0 30px}
.search-box{position:relative;max-width:420px;margin:0 auto 20px}
.search-box input{width:100%;padding:14px 18px 14px 44px;border-radius:100px;border:1px solid var(--gray-200);font-size:.95rem}
.search-box::before{content:"🔍";position:absolute;left:16px;top:50%;transform:translateY(-50%)}
.filter-btn{padding:9px 18px;border-radius:100px;border:1px solid var(--gray-200);background:#fff;cursor:pointer;font-weight:700;font-size:.88rem;color:var(--gray-700)}
.filter-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.result-count{text-align:center;color:var(--gray-500);font-size:.9rem;margin-bottom:30px}
.sm-cat h2{font-size:1.1rem;font-weight:800;margin-bottom:16px;color:var(--primary-dark)}
.sm-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;margin-bottom:44px}
.sm-card{border:1px solid var(--gray-200);border-radius:12px;padding:20px;transition:.25s}
.sm-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--teal)}
.sm-card .sm-icon{font-size:1.5rem;margin-bottom:10px}
.sm-card h3{font-size:.98rem;font-weight:800;margin-bottom:6px}
.sm-card p{font-size:.85rem;color:var(--gray-500)}
.sm-empty{text-align:center;padding:50px 0;color:var(--gray-500)}
.consult-banner{background:var(--gray-100);border-radius:var(--radius);padding:40px;text-align:center;margin-bottom:20px}
.consult-banner h2{font-size:1.3rem;font-weight:800;margin-bottom:10px;color:var(--primary-dark)}

/* 404 */
.notfound{margin-top:72px;padding:120px 0;text-align:center}
.notfound .code{font-size:5rem;font-weight:800;color:var(--gray-200)}

@media(max-width:900px){
  .service-grid,.process-list,.process-flow,.case-track,.region-grid{grid-template-columns:repeat(2,1fr)}
  .ba-grid{grid-template-columns:1fr}
  .region-split{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .related-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
  .site-nav{display:none}
  .menu-toggle{display:block;margin-left:auto}
  .mobile-nav.open{display:flex}
  .header-cta{display:none}
  .hero-inner h1{font-size:1.7rem}
  .hero{min-height:520px}
  .service-grid,.process-list,.process-flow,.case-track,.region-grid{grid-template-columns:1fr}
  .gallery-grid img{flex-basis:150px;width:150px}
  .region-photos img{width:150px;height:150px}
  .footer-grid{grid-template-columns:1fr;text-align:center}
}