:root{--black:#05080d;--black2:#091019;--navy:#071a33;--navy2:#092b54;--blue:#075ad8;--blue2:#0c7bf4;--cyan:#12a8ff;--sky:#70cfff;--ink:#121a26;--muted:#667487;--line:#dce4ef;--soft:#f3f7fc;--white:#fff;--max:1280px;--header:80px;--shadow:0 18px 55px rgba(5,22,48,.14)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Pretendard,"Noto Sans KR",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:#fff;line-height:1.65;word-break:keep-all;letter-spacing:-.01em}body.nav-open{overflow:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button,input,textarea,select{font:inherit}button{cursor:pointer}h1,h2,h3,h4,p{margin-top:0}.container{width:min(calc(100% - 56px),var(--max));margin-inline:auto}.section{padding:118px 0}.section--soft{background:var(--soft)}.eyebrow{font-size:12px;font-weight:850;letter-spacing:.18em;text-transform:uppercase;color:var(--blue2);margin-bottom:12px}.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:48px;margin-bottom:50px}.section-head h2{font-size:clamp(34px,4.5vw,58px);line-height:1.05;margin:6px 0 0;letter-spacing:-.055em}.section-head>p{max-width:520px;color:var(--muted);margin:0}.lead{font-size:19px;color:#3e4a5c}.btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:52px;padding:0 24px;border:1px solid var(--black);background:var(--black);color:#fff;font-weight:800;border-radius:2px;transition:.25s}.btn:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(7,90,216,.22)}.btn--blue{background:linear-gradient(90deg,var(--blue),var(--blue2));border-color:var(--blue)}.btn--line{background:transparent;color:var(--navy);border-color:#a8b8ca}.btn--light{background:#fff;color:var(--navy);border-color:#fff}.btn--glass{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.26);backdrop-filter:blur(12px)}.tag{display:inline-flex;padding:4px 8px;background:#e8f3ff;color:var(--blue);font-size:11px;font-weight:850;border-radius:2px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:32px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.card{background:#fff;border:1px solid var(--line);border-radius:3px;overflow:hidden;box-shadow:0 8px 28px rgba(9,37,71,.05)}.card__body{padding:28px}.card h3{font-size:24px;line-height:1.3;margin-bottom:12px}.card p{color:var(--muted)}.card-media{aspect-ratio:4/3;object-fit:cover;width:100%}
.site-header{position:fixed;inset:0 0 auto;z-index:1000;height:var(--header);color:#fff;transition:.3s;border-bottom:1px solid rgba(255,255,255,.13);background:linear-gradient(180deg,rgba(0,8,20,.72),rgba(0,8,20,0))}.site-header.scrolled,.site-header.menu-open{background:rgba(4,10,18,.94);box-shadow:0 8px 32px rgba(0,0,0,.28);backdrop-filter:blur(16px);border-color:rgba(255,255,255,.08)}.header-inner{height:100%;display:flex;align-items:center;gap:30px}.brand{margin-right:auto}.brand img{width:164px;height:48px;object-fit:contain;filter:drop-shadow(0 2px 8px rgba(0,0,0,.32))}.gnb{display:flex;align-items:center;height:100%;gap:2px}.nav-group{position:relative;height:100%;display:flex;align-items:center}.nav-group>a{height:100%;display:flex;align-items:center;padding:0 17px;font-weight:750;font-size:14px;position:relative}.nav-group>a:after{content:"";position:absolute;left:17px;right:17px;bottom:0;height:2px;background:var(--cyan);transform:scaleX(0);transition:.25s}.nav-group.active>a,.nav-group:hover>a{color:#fff}.nav-group.active>a:after,.nav-group:hover>a:after{transform:scaleX(1)}.submenu{position:absolute;top:80px;left:50%;transform:translate(-50%,10px);width:200px;background:#fff;color:var(--ink);padding:11px;opacity:0;visibility:hidden;transition:.22s;box-shadow:0 18px 50px rgba(0,18,43,.24);border-top:3px solid var(--blue2)}.submenu a{display:block;padding:10px 12px;font-size:13px;font-weight:650}.submenu a:hover{background:#edf5ff;color:var(--blue)}.nav-group:hover .submenu{opacity:1;visibility:visible;transform:translate(-50%,0)}.header-contact{height:40px;padding:0 16px;display:flex;align-items:center;border:1px solid rgba(255,255,255,.36);font-size:13px;font-weight:800;background:rgba(255,255,255,.04)}.header-contact:hover{background:var(--blue2);border-color:var(--blue2)}.menu-toggle{display:none;width:44px;height:44px;border:0;background:transparent;padding:10px}.menu-toggle span{display:block;height:2px;background:#fff;margin:6px 0;transition:.25s}
.subhero{min-height:490px;display:flex;align-items:flex-end;padding:calc(var(--header) + 90px) 0 78px;color:#fff;position:relative;overflow:hidden;background:linear-gradient(90deg,rgba(2,9,18,.94),rgba(3,23,48,.65) 54%,rgba(4,27,55,.22)),var(--hero) center/cover}.subhero:before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,51,116,.12),rgba(0,0,0,.1)),linear-gradient(90deg,transparent 49.9%,rgba(255,255,255,.06) 50%,transparent 50.1%);background-size:auto,80px 100%}.subhero:after{content:"BDTEC";position:absolute;right:4vw;bottom:-28px;font-size:clamp(90px,16vw,220px);font-weight:950;letter-spacing:-.07em;color:rgba(255,255,255,.035);line-height:1}.subhero__inner{position:relative;z-index:2}.subhero .eyebrow{color:var(--sky)}.subhero h1{font-size:clamp(46px,6vw,72px);line-height:1.02;letter-spacing:-.06em;margin:0 0 22px}.subhero p:not(.eyebrow){font-size:17px;max-width:700px;color:rgba(255,255,255,.72)}
.site-footer{background:#05090f;color:rgba(255,255,255,.62);padding:66px 0 22px;border-top:1px solid rgba(255,255,255,.08)}.footer-grid{display:grid;grid-template-columns:1.1fr 2fr auto;gap:50px;align-items:start}.footer-brand img{width:174px;height:58px;object-fit:contain;margin-bottom:16px}.footer-brand p{max-width:300px}.footer-info p{margin:0 0 7px}.footer-info strong{color:#fff}.footer-links{display:grid;gap:8px}.footer-links a{color:#fff;font-size:13px}.footer-links a:hover{color:var(--sky)}.footer-bottom{display:flex;justify-content:space-between;gap:24px;border-top:1px solid rgba(255,255,255,.1);padding-top:20px;margin-top:44px;font-size:11px;letter-spacing:.02em}
.table-wrap{overflow:auto;border-top:2px solid var(--navy);background:#fff}table{width:100%;border-collapse:collapse}th,td{padding:16px 14px;border-bottom:1px solid var(--line);text-align:left}th{background:#f5f8fc;font-weight:800;color:#23354b}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.field{display:grid;gap:8px}.field--full{grid-column:1/-1}.field label{font-weight:750}.field input,.field textarea,.field select{width:100%;border:1px solid #cbd6e3;padding:13px 14px;border-radius:2px;background:#fff;outline:none;transition:.2s}.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--blue2);box-shadow:0 0 0 3px rgba(12,123,244,.1)}.field textarea{min-height:180px;resize:vertical}.notice-box{padding:18px 20px;border-left:4px solid var(--blue2);background:#eef6ff}.empty{padding:70px 20px;text-align:center;color:var(--muted);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.js [data-reveal]{opacity:0;transform:translateY(26px);transition:opacity .75s ease,transform .75s cubic-bezier(.2,.65,.3,1)}.js [data-reveal].is-visible{opacity:1;transform:none}.include-error{background:#b42318;color:#fff;padding:12px;text-align:center}.content-title{font-size:clamp(34px,5vw,56px);letter-spacing:-.055em;line-height:1.15}.split{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}.media-frame{position:relative}.media-frame img{width:100%;min-height:420px;object-fit:cover}.media-frame:after{content:"";position:absolute;right:-12px;bottom:-12px;width:42%;height:42%;border-right:3px solid var(--blue2);border-bottom:3px solid var(--blue2);pointer-events:none}.kpi{border-top:2px solid var(--blue2);padding-top:18px}.kpi strong{font-size:44px;color:var(--navy);display:block;line-height:1.1}.kpi span{color:var(--muted)}.cta-band{background:linear-gradient(110deg,#031024,#083a78);color:#fff;padding:78px 0;position:relative;overflow:hidden}.cta-band:after{content:"";position:absolute;width:500px;height:500px;border:1px solid rgba(255,255,255,.08);border-radius:50%;right:-180px;top:-270px}.cta-band .container{position:relative;z-index:2;display:flex;justify-content:space-between;align-items:center;gap:40px}.cta-band h2{font-size:clamp(30px,4vw,48px);margin-bottom:8px}.cta-band p{color:rgba(255,255,255,.68);margin:0}.breadcrumbs{font-size:13px;color:var(--muted);margin-bottom:30px}
@media(max-width:1040px){:root{--header:72px}.container{width:min(calc(100% - 36px),var(--max))}.section{padding:88px 0}.gnb{position:fixed;inset:var(--header) 0 0;background:#050b14;display:block;padding:18px 24px 60px;overflow:auto;transform:translateX(100%);transition:.3s}.site-header.menu-open .gnb{transform:none}.nav-group{height:auto;display:block;border-bottom:1px solid rgba(255,255,255,.1)}.nav-group>a{display:flex;padding:18px 0;font-size:18px}.nav-group>a:after{display:none}.submenu{position:static;transform:none!important;width:auto;background:transparent;color:rgba(255,255,255,.7);box-shadow:none;border:0;padding:0 0 14px;opacity:1;visibility:visible;display:none}.nav-group.open .submenu{display:block}.submenu a{padding:9px 14px}.submenu a:hover{background:rgba(255,255,255,.06);color:#fff}.header-contact{display:none}.menu-toggle{display:block}.menu-open .menu-toggle span:nth-child(1){transform:translateY(8px) rotate(45deg)}.menu-open .menu-toggle span:nth-child(2){opacity:0}.menu-open .menu-toggle span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}.split{grid-template-columns:1fr;gap:44px}.footer-grid{grid-template-columns:1fr 1fr}.footer-links{grid-column:1/-1;display:flex}.section-head{display:block}.section-head>p{margin-top:18px}.cta-band .container{display:block}.cta-band .btn{margin-top:24px}}
@media(max-width:640px){.container{width:min(calc(100% - 24px),var(--max))}.section{padding:68px 0}.grid-2,.grid-3,.grid-4,.form-grid{grid-template-columns:1fr}.field--full{grid-column:auto}.subhero{min-height:420px;padding-bottom:55px}.subhero h1{font-size:42px}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:6px}.card__body{padding:22px}.media-frame img{min-height:300px}.brand img{width:140px}.kpi strong{font-size:38px}}

/* Detail page enhancement utilities */
.detail-intro{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(420px,.98fr);gap:76px;align-items:center}.detail-intro--reverse{grid-template-columns:minmax(420px,.98fr) minmax(0,1.02fr)}.detail-intro--reverse .detail-media{order:-1}.detail-kicker{display:flex;align-items:center;gap:12px;margin-bottom:15px;color:var(--blue2);font-size:12px;font-weight:900;letter-spacing:.15em;text-transform:uppercase}.detail-kicker:before{content:"";width:34px;height:2px;background:var(--blue2)}.detail-title{font-size:clamp(35px,4.2vw,58px);line-height:1.08;letter-spacing:-.055em;margin:0 0 24px}.detail-desc{font-size:18px;color:#465569;max-width:720px}.detail-copy p:not(.eyebrow):not(.detail-kicker){color:#59687b}.detail-copy .detail-desc{color:#3d4e63}.detail-copy ul{margin:26px 0 0;padding:0;list-style:none;border-top:1px solid var(--line)}.detail-copy li{position:relative;padding:12px 0 12px 22px;border-bottom:1px solid var(--line);color:#405066}.detail-copy li:before{content:"";position:absolute;left:0;top:22px;width:6px;height:6px;background:var(--blue2)}
.detail-media{position:relative;overflow:hidden;background:#dfe7f0;min-height:360px;aspect-ratio:4/3}.detail-media--wide{aspect-ratio:16/7;min-height:340px}.detail-media--portrait{aspect-ratio:4/5}.detail-media--square{aspect-ratio:1/1}.detail-media img,.img-fill{width:100%;height:100%;object-fit:cover;object-position:var(--img-pos,50% 50%)}.detail-media:after{content:"";position:absolute;inset:0;border:1px solid rgba(255,255,255,.22);pointer-events:none}.detail-media__label{position:absolute;left:0;bottom:0;z-index:2;background:rgba(3,15,31,.88);color:#fff;padding:13px 18px;font-size:12px;font-weight:800;letter-spacing:.08em}.detail-media__label span{color:var(--sky)}
.detail-stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.detail-stat{padding:28px 24px;border-right:1px solid var(--line)}.detail-stat:last-child{border-right:0}.detail-stat strong{display:block;font-size:clamp(30px,4vw,48px);line-height:1;color:var(--navy);letter-spacing:-.04em}.detail-stat span{display:block;margin-top:10px;color:var(--muted);font-size:13px}.detail-stat small{color:var(--blue2);font-weight:800}
.detail-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.detail-card{position:relative;background:#fff;border:1px solid var(--line);padding:30px;min-height:230px;transition:.25s;overflow:hidden}.detail-card:hover{transform:translateY(-4px);border-color:#91bcec;box-shadow:0 16px 36px rgba(6,49,100,.09)}.detail-card b{display:block;color:var(--blue2);font-size:12px;letter-spacing:.12em;margin-bottom:36px}.detail-card h3{font-size:22px;line-height:1.35;margin-bottom:12px}.detail-card p{font-size:14px;color:var(--muted);margin:0}.detail-card:after{content:"";position:absolute;left:0;bottom:0;width:42px;height:3px;background:var(--blue2);transition:.3s}.detail-card:hover:after{width:100%}
.detail-gallery{display:grid;grid-template-columns:1.15fr .85fr;grid-template-rows:repeat(2,minmax(240px,1fr));gap:12px}.detail-gallery figure{margin:0;position:relative;overflow:hidden;background:#dfe7f0;min-height:240px}.detail-gallery figure:first-child{grid-row:1/3}.detail-gallery img{width:100%;height:100%;object-fit:cover;object-position:var(--img-pos,50% 50%);transition:.45s}.detail-gallery figure:hover img{transform:scale(1.025)}.detail-gallery figcaption{position:absolute;left:0;right:0;bottom:0;padding:45px 18px 16px;background:linear-gradient(transparent,rgba(3,13,26,.78));color:#fff;font-size:13px;font-weight:750}
.detail-dark{background:linear-gradient(118deg,#030b16,#06264c 65%,#074e9e);color:#fff;position:relative;overflow:hidden}.detail-dark:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 49.9%,rgba(255,255,255,.035) 50%,transparent 50.1%);background-size:100px 100%}.detail-dark .container{position:relative;z-index:1}.detail-dark .section-head h2,.detail-dark h2,.detail-dark h3{color:#fff}.detail-dark .section-head>p,.detail-dark p{color:rgba(255,255,255,.68)}.detail-dark .eyebrow,.detail-dark .detail-kicker{color:var(--sky)}.detail-dark .detail-kicker:before{background:var(--sky)}
.detail-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border-top:1px solid var(--line)}.detail-list-item{display:grid;grid-template-columns:64px 1fr;gap:16px;padding:27px 24px;border-bottom:1px solid var(--line);border-right:1px solid var(--line)}.detail-list-item:nth-child(even){border-right:0}.detail-list-item b{color:var(--blue2);font-size:12px}.detail-list-item h3{font-size:20px;margin:0 0 7px}.detail-list-item p{color:var(--muted);margin:0;font-size:14px}.detail-dark .detail-list{border-color:rgba(255,255,255,.16)}.detail-dark .detail-list-item{border-color:rgba(255,255,255,.13)}.detail-dark .detail-list-item b{color:var(--sky)}
.detail-note{display:flex;gap:18px;align-items:flex-start;padding:24px 26px;background:#edf5ff;border-left:3px solid var(--blue2)}.detail-note strong{white-space:nowrap;color:var(--navy)}.detail-note p{margin:0;color:#53657b}.detail-chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}.detail-chip{padding:8px 11px;border:1px solid #cbd9e8;color:#334a65;background:#fff;font-size:12px;font-weight:800}.detail-image-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.detail-image-card{position:relative;min-height:380px;overflow:hidden;background:#dfe7f0;color:#fff}.detail-image-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:var(--img-pos,50% 50%);transition:.45s}.detail-image-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(2,12,24,.08),rgba(2,12,24,.86))}.detail-image-card__body{position:absolute;z-index:2;left:0;right:0;bottom:0;padding:28px}.detail-image-card__body b{font-size:11px;letter-spacing:.12em;color:var(--sky)}.detail-image-card__body h3{font-size:23px;margin:8px 0}.detail-image-card__body p{color:rgba(255,255,255,.72);font-size:14px;margin:0}.detail-image-card:hover img{transform:scale(1.035)}
.detail-quote{padding:36px 40px;border-left:4px solid var(--blue2);background:#f6f9fc}.detail-quote strong{display:block;font-size:clamp(25px,3.2vw,40px);line-height:1.35;letter-spacing:-.04em;color:var(--navy)}.detail-quote p{margin:18px 0 0;color:var(--muted)}
@media(max-width:1040px){.detail-intro,.detail-intro--reverse{grid-template-columns:1fr;gap:42px}.detail-intro--reverse .detail-media{order:0}.detail-cards{grid-template-columns:repeat(2,1fr)}.detail-gallery{grid-template-columns:1fr 1fr;grid-template-rows:360px 250px}.detail-gallery figure:first-child{grid-column:1/-1;grid-row:auto}.detail-stats{grid-template-columns:repeat(2,1fr)}.detail-stat:nth-child(2){border-right:0}.detail-stat:nth-child(-n+2){border-bottom:1px solid var(--line)}.detail-image-cards{grid-template-columns:1fr 1fr}.detail-image-card:last-child{grid-column:1/-1;min-height:320px}}
@media(max-width:640px){.detail-title{font-size:36px}.detail-media,.detail-media--wide,.detail-media--portrait{min-height:280px;aspect-ratio:4/3}.detail-cards,.detail-image-cards,.detail-list{grid-template-columns:1fr}.detail-list-item{border-right:0}.detail-image-card:last-child{grid-column:auto}.detail-gallery{grid-template-columns:1fr;grid-template-rows:none}.detail-gallery figure,.detail-gallery figure:first-child{min-height:260px;grid-column:auto}.detail-stats{grid-template-columns:1fr 1fr}.detail-stat{padding:22px 16px}.detail-stat strong{font-size:32px}.detail-note{display:block}.detail-note strong{display:block;margin-bottom:7px}}

/* ==== Graphic subhero redesign by major section ==== */
.subhero{
  min-height:430px;
  align-items:center;
  padding:calc(var(--header) + 70px) 0 70px;
  background:
    radial-gradient(circle at 12% 18%, rgba(255,255,255,.14), transparent 24%),
    radial-gradient(circle at 85% 15%, rgba(255,255,255,.09), transparent 22%),
    linear-gradient(135deg, rgba(255,255,255,.04), rgba(255,255,255,0) 42%),
    linear-gradient(135deg, var(--subhero-start, #0c2038), var(--subhero-end, #0a4489));
}
.subhero::before{
  background:
    linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,0) 32%),
    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: auto, 96px 100%, 100% 96px;
  opacity:.75;
}
.subhero::after{
  content:"";
  right:auto;
  left:50%;
  bottom:-18%;
  width:min(56vw,720px);
  height:min(56vw,720px);
  border-radius:50%;
  transform:translateX(-50%);
  border:1px solid rgba(255,255,255,.14);
  box-shadow:0 0 0 22px rgba(255,255,255,.03),0 0 0 58px rgba(255,255,255,.02);
  background:radial-gradient(circle, rgba(255,255,255,.12), rgba(255,255,255,.03) 34%, rgba(255,255,255,0) 60%);
}
.subhero__decor{position:absolute;border-radius:999px;opacity:.95;pointer-events:none;z-index:1}
.subhero__decor--a{width:220px;height:220px;left:min(6vw,90px);bottom:-40px;border:1px solid rgba(255,255,255,.14);background:radial-gradient(circle, rgba(255,255,255,.12), rgba(255,255,255,0) 68%)}
.subhero__decor--b{width:140px;height:140px;right:min(9vw,120px);top:calc(var(--header) + 30px);border:1px solid rgba(255,255,255,.18)}
.subhero__decor--c{width:420px;height:2px;left:0;right:0;top:calc(var(--header) + 92px);margin:auto;background:linear-gradient(90deg, transparent, rgba(255,255,255,.32), transparent)}
.subhero__inner{position:relative;z-index:3}.subhero .eyebrow{margin-bottom:16px;color:#d9edff}.subhero h1{max-width:640px;margin-bottom:18px}.subhero p:not(.eyebrow){max-width:760px;color:rgba(255,255,255,.82)}
.subhero--company{--subhero-start:#0d2036;--subhero-end:#1f5f9e}.subhero--business{--subhero-start:#3e526d;--subhero-end:#6d87a6}.subhero--technology{--subhero-start:#0c1631;--subhero-end:#244a91}.subhero--support{--subhero-start:#102131;--subhero-end:#2a6c86}
@media (max-width:640px){.subhero{min-height:360px;padding:calc(var(--header) + 50px) 0 48px}.subhero::after{width:88vw;height:88vw;bottom:-28%}.subhero__decor--a{width:150px;height:150px;left:18px;bottom:-30px}.subhero__decor--b{width:90px;height:90px;right:18px;top:calc(var(--header) + 26px)}.subhero__decor--c{top:calc(var(--header) + 76px)}}

/* Footer privacy link */
.footer-grid{grid-template-columns:1.1fr 2fr}
.footer-bottom a{color:rgba(255,255,255,.72);font-weight:700}
.footer-bottom a:hover{color:var(--sky)}
@media(max-width:1040px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.footer-grid{grid-template-columns:1fr}}