@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;500;600;700;800;900&display=swap');
:root{--navy:#203d63;--dark:#152c49;--orange:#c94f0b;--gray:#627183;--line:#dce3eb;--soft:#f3f6f9}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;color:var(--dark);font-family:'Noto Sans KR',-apple-system,BlinkMacSystemFont,'Malgun Gothic',sans-serif;line-height:1.8;font-size:16px;word-break:keep-all}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--orange);outline-offset:5px}img{max-width:100%;display:block}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.3;letter-spacing:-.045em}h2{font-size:clamp(30px,3vw,42px);font-weight:700}h3{font-size:23px}p{color:var(--gray)}header{height:98px;padding:0 5%;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:10;gap:24px}.brand{display:flex;align-items:center;gap:14px;font-size:23px;font-weight:800;line-height:1.2;white-space:nowrap}.brand small{display:block;font-size:10px;letter-spacing:.19em;margin-top:7px}.brand-mark{font:900 41px/1 Arial,sans-serif;letter-spacing:-4px}.brand-mark span{color:var(--orange);letter-spacing:0}nav{display:flex;gap:32px}nav a{font-size:15px;font-weight:600;position:relative}nav a:hover,nav a[aria-current]{color:var(--orange)}.header-cta{background:var(--navy);color:white;padding:12px 21px;font-size:14px;font-weight:600}.header-cta span{margin-left:22px}.menu-toggle{display:none}.wrap{max-width:1240px;margin:auto;padding-left:35px;padding-right:35px}.section{padding-top:100px;padding-bottom:100px}.eyebrow{font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--orange);margin-bottom:20px}.hero{max-width:1500px;display:grid;grid-template-columns:1fr 1fr;margin:auto;min-height:660px}.hero-copy{padding:75px 25px 65px max(35px,9vw)}.hero h1{font-size:clamp(48px,4.4vw,68px);font-weight:800;line-height:1.22;letter-spacing:-.065em}.hero h1 em{font-style:normal;color:var(--orange)}.hero-desc{margin:26px 0 32px;font-size:16px;line-height:1.9}.button{display:inline-flex;align-items:center;justify-content:space-between;gap:35px;padding:17px 25px;background:var(--navy);color:#fff;border:0;font-weight:600;font-size:15px;cursor:pointer;transition:background .2s}.button:hover{background:var(--orange)}.text-link{display:inline-block;border:0;border-bottom:1px solid var(--line);padding:7px 0;background:none;font-size:14px;font-weight:600;cursor:pointer}.hero .text-link{display:block;width:max-content;margin-top:20px}.hero-visual{background:#edf1f5;position:relative;padding:45px 45px 26px;display:flex;flex-direction:column;justify-content:center;overflow:hidden}.visual-top{display:flex;justify-content:space-between;font-size:11px;font-weight:600;letter-spacing:.15em;position:absolute;left:45px;right:45px;top:35px;color:#66788d}.hero-visual>img{width:100%;mix-blend-mode:multiply;transform:rotate(-17deg) scale(1.05);margin:90px 0 95px}.visual-bottom{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #cbd5df;padding-bottom:25px}.visual-bottom span{font-size:12px;letter-spacing:.12em}.visual-bottom h2{font-size:25px;margin-top:6px}.round-arrow{border:1px solid #bac8d6;width:46px;height:46px;display:grid;place-items:center;border-radius:50%}.material-line{display:flex;gap:30px;padding-top:22px;font-weight:700;font-size:16px}.material-line small{font-weight:400;font-size:12px;margin-left:6px;color:var(--gray)}.stats{background:var(--navy);color:white;display:grid;grid-template-columns:repeat(4,1fr);padding:32px 7%}.stats>div{padding:5px 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0}dt{font-weight:600}dd{margin:0;color:var(--gray)}.table-scroll{overflow:auto;margin-top:30px}table{border-collapse:collapse;width:100%;min-width:500px;text-align:left;font-size:15px}caption{position:absolute;clip:rect(0,0,0,0)}th{background:var(--navy);color:white;padding:16px 22px;font-weight:500}td{padding:16px 22px;border-bottom:1px solid var(--line)}tbody tr:nth-child(even){background:var(--soft)}.note{font-size:13px;margin:20px 0;line-height:1.8}.notice{background:var(--soft);padding:30px;border-left:3px solid var(--orange);margin:20px 0}.notice h3{font-size:20px;margin-bottom:15px}.notice p{font-size:15px}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;margin-top:50px}.steps h3{font-size:21px;margin-bottom:16px}.steps p{font-size:15px}.wide-image{margin:35px 0;width:100%;border:1px solid var(--line)}.border-top{border-top:1px solid var(--line)}.cert{background:var(--soft);padding:45px}.cert-mark{font-size:45px;font-weight:800;color:var(--navy);display:block;margin-bottom:25px}.cert h2{font-size:26px}.download-row{border-top:1px solid var(--line);padding:32px 0;display:flex;align-items:center;justify-content:space-between;gap:20px}.download-row p{margin-top:10px;font-size:14px}.download-row .eyebrow{display:block;margin-bottom:8px}.contact-layout{display:grid;grid-template-columns:1fr 1.8fr;gap:65px;padding-bottom:65px}.contact-layout aside>a{display:block}.contact-phone{font-size:30px;font-weight:700}.contact-layout aside>p:not(.eyebrow){font-size:14px;margin-top:20px}.contact-layout aside .notice{margin-top:35px}.form-note{font-size:13px;margin-bottom:20px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}label{display:block;font-size:14px;font-weight:600;margin-bottom:18px}input,select,textarea{display:block;width:100%;padding:12px 13px;border:1px solid #c9d3df;background:white;color:var(--dark);border-radius:0;margin-top:8px;font-size:15px}input:focus,select:focus,textarea:focus{outline:2px solid var(--navy);outline-offset:1px}textarea{resize:vertical}.copy-button{margin-top:15px}#form-status{margin-top:20px;font-size:14px}details{border-bottom:1px solid var(--line);padding:22px 0}summary{font-size:17px;font-weight:600;cursor:pointer}details p{margin-top:15px;font-size:15px}
@media(min-width:1600px){.hero-copy{padding-left:85px}}@media(max-width:1100px){header{padding:0 25px}nav{gap:20px}.header-cta{display:none}.hero-copy{padding-left:35px}.hero h1{font-size:52px}.stats{padding:25px 15px}.stats strong{font-size:21px}.material-line{gap:15px}.material-line small{display:block;margin:0}.resource-strip{grid-template-columns:1fr 1fr}.resource-strip>div{grid-column:1/-1}}
@media(max-width:760px){header{height:76px;padding:0 22px}.brand{font-size:20px}.brand-mark{font-size:35px}.menu-toggle{display:block;background:none;border:1px solid var(--line);padding:5px 10px;font-size:22px;color:var(--navy)}nav{display:none;position:absolute;top:76px;left:0;right:0;background:white;flex-direction:column;gap:0;padding:10px 24px 22px;border-bottom:1px solid var(--line)}nav.open{display:flex}nav a{padding:13px 0}.wrap{padding-left:24px;padding-right:24px}.hero{display:block}.hero-copy{padding:45px 24px}.hero h1{font-size:49px}.hero .eyebrow{font-size:10px;letter-spacing:.12em}.hero-desc{font-size:15px}.hero-visual{min-height:340px;padding:35px 25px 20px}.hero-visual>img{max-width:430px;margin:60px auto 55px}.visual-top{left:25px;right:25px;top:22px;font-size:10px}.visual-bottom h2{font-size:22px}.material-line{justify-content:space-between;padding-top:15px}.material-line small{display:inline;margin-left:7px}.stats{grid-template-columns:1fr 1fr;padding:22px 12px;gap:20px 0}.stats>div{padding:0 15px}.stats>div:nth-child(2){border:0}.stats strong{font-size:21px}.stats p{font-size:11px}.section{padding-top:65px;padding-bottom:65px}.section-heading{display:block;margin-bottom:30px}.section-heading>p,.section-heading>a{margin-top:22px}.product-grid,.strength-grid,.application-feature,.two-col,.about-letter,.detail-grid,.contact-layout,.location{grid-template-columns:1fr;gap:30px}.product-image{height:200px;padding:50px}.product-info{padding:25px}.strength-section{padding:60px 0}.strength-grid{gap:32px}.strength-grid article{padding-top:20px}.strength-grid .number{margin-bottom:15px}.application-feature{gap:25px}.resource-strip{grid-template-columns:1fr;padding-bottom:60px;gap:15px}.resource-strip>div{margin-bottom:12px}.cta{display:block;padding:45px 24px}.cta .button{margin-top:30px}.cta h2{font-size:32px}.footer-top,.footer-bottom{display:block}.footer-top>p{margin:20px 0}.footer-bottom p{margin-bottom:15px}.page-intro{padding-top:48px;padding-bottom:45px}.page-intro h1{font-size:40px}.lead{font-size:16px}.about-letter{padding-bottom:50px}.soft{padding:50px 0}.detail-grid>img{padding:20px 0}.steps{grid-template-columns:1fr 1fr;gap:30px 22px}.steps h3{font-size:19px}.steps p{font-size:14px}.download-row{display:block}.download-row>a{margin-top:20px}.cert{padding:30px}.contact-layout{gap:30px}.form-grid{gap:12px}.notice{padding:22px}.contact-phone{font-size:29px}label{font-size:13px}input,select,textarea{font-size:16px}.hero .text-link{margin-top:18px}html{scroll-padding-top:90px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
/* Brand refresh: deep ocean blue, expansive photography and editorial product layouts. */
:root{--navy:#064c7d;--dark:#102b42;--orange:#1476ad;--soft:#f3f6f8;--line:#dce4e9}header{height:100px;padding:0 4.5%;transition:background .25s,color .25s;box-shadow:none}.brand{gap:9px}.brand-symbol{width:46px;height:58px;object-fit:contain}.brand-wordmark{font-size:25px;font-weight:800;letter-spacing:-.045em}.brand-wordmark small{font-size:10px;letter-spacing:.18em;margin-top:8px;font-weight:600}.header-cta{background:transparent;color:var(--dark);border-bottom:1px solid var(--dark);padding:8px 0;font-size:14px}nav{position:relative;gap:35px}nav a{font-size:15px}.nav-products{display:none;position:absolute;top:100%;left:95px;min-width:210px;background:#fff;color:var(--dark);padding:20px;box-shadow:0 12px 30px #102b4220;flex-direction:column;gap:14px}nav:focus-within .nav-products,nav:hover .nav-products{display:flex}.home-page header{position:absolute;left:0;right:0;top:0;background:transparent;color:white;border-bottom:1px solid #ffffff30}.home-page header .brand-symbol{filter:brightness(0) invert(1)}.home-page .header-cta{color:white;border-color:#ffffff70}.home-page nav a:hover{color:#8fd4ff}.home-page .nav-products a:hover{color:var(--navy)}.hero-cinema{position:relative;min-height:760px;height:calc(100svh - 20px);max-height:1050px;background:#062b46;overflow:hidden;color:white;display:flex;align-items:center}.hero-photo{position:absolute;inset:0;background:url('assets/water-hero.png') center/cover no-repeat;animation:waterIntro 2s ease-out both}.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,#021826aa 0%,#02182650 55%,#02182618 100%)}.cinema-content{position:relative;z-index:1;padding:120px 7% 110px;max-width:1050px}.cinema-content .eyebrow{color:#a9d5eb;font-size:12px;letter-spacing:.19em;margin-bottom:30px}.cinema-content h1{font-size:clamp(48px,5.4vw,82px);font-weight:700;line-height:1.25;letter-spacing:-.065em}.cinema-description{color:#dce8ef;font-size:18px;line-height:1.9;margin:32px 0 38px}.hero-cinema .button{background:transparent;border:1px solid #ffffff80;color:white;padding:17px 26px}.hero-cinema .button:hover{background:white;color:var(--navy)}.hero-bottom{position:absolute;left:7%;right:7%;bottom:35px;display:flex;justify-content:space-between;border-top:1px solid #ffffff35;padding-top:24px;letter-spacing:.14em;font-size:10px;color:#c4d9e7}.hero-bottom a{display:flex;gap:25px}.brand-statement{display:grid;grid-template-columns:1fr 1fr;gap:28px 90px;padding-top:110px;padding-bottom:110px;align-items:end}.brand-statement>.eyebrow{grid-column:1/-1;margin:0}.brand-statement h2{font-size:48px;line-height:1.35}.brand-statement h2 span{color:var(--navy)}.brand-statement>div>p{font-size:16px;line-height:2}.brand-statement .text-link{margin-top:25px}.solutions-section{padding:100px 0;background:#f3f6f8}.product-card{background:white;border:0}.product-image{height:270px;background:#fff}.product-info{border-top:1px solid var(--line);padding:30px}.product-info h3{font-size:27px}.product-info .tags span{background:#f0f5f8}.band-feature{margin-top:30px;display:grid;grid-template-columns:1.1fr 1fr;align-items:center;gap:55px;background:white;padding:45px 55px;border:1px solid var(--line)}.band-feature h3{font-size:29px}.band-feature p:not(.eyebrow){margin:20px 0 10px;font-size:15px}.band-preview{padding:20px;min-width:0}.band-preview img{width:100%}.brand-principles{background:#06334f;padding:95px 0;color:white}.brand-principles .eyebrow{color:#80bfdf}.brand-principles p{color:#b4cbd9}.principle-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:45px}.principle-grid article{padding-top:35px;border-top:1px solid #ffffff35}.principle-grid article>span{display:block;font-size:14px;color:#8abed7;margin-bottom:35px}.principle-grid h3{font-size:28px;margin-bottom:17px}.principle-grid p{font-size:15px;line-height:1.9}.application-feature{gap:55px}.application-feature img{border:0}.application-feature .text-link{margin-top:25px}.cta{background:#064c7d}.cta h2{font-size:42px}.cta .eyebrow{color:#9bcae5}.page-intro{background:linear-gradient(110deg,#eef5f9,white);max-width:none;padding-left:max(35px,calc((100vw - 1170px)/2));padding-right:max(35px,calc((100vw - 1170px)/2));padding-top:75px;padding-bottom:65px;margin-bottom:65px}.page-intro h1{font-size:56px;line-height:1.28}.band-overview{display:grid;grid-template-columns:1fr 1.1fr;gap:65px;padding-bottom:85px;align-items:center}.band-overview p:not(.eyebrow){margin:24px 0}.band-overview .button{margin-top:10px}.band-drawing{padding:25px;background:var(--soft)}.band-drawing>img{mix-blend-mode:multiply}.type-captions{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;text-align:center;margin-top:25px;font-size:15px;font-weight:600}.type-captions small{font-size:12px;color:var(--gray);font-weight:400}.type-list{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin-top:40px}.type-list article{border-top:1px solid var(--line);padding-top:25px}.type-list article>span{display:block;font-size:42px;font-weight:600;color:var(--navy);margin-bottom:20px}.type-list p{margin-top:15px}.brand-identity{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}.brand-identity>div>p:not(.eyebrow){margin-top:25px}.identity-lockup{display:flex;gap:25px;align-items:center;padding:55px;background:var(--soft)}.identity-lockup img{width:95px}.identity-lockup strong{font-size:34px;letter-spacing:-.04em;line-height:1.5;white-space:nowrap}.identity-lockup small{display:block;font-size:12px;letter-spacing:.21em}.back-top{display:grid;place-items:center;width:45px;height:45px;background:var(--navy);color:white;position:fixed;right:22px;bottom:22px;font-size:22px;z-index:5;opacity:0;pointer-events:none}.scrolled .back-top{opacity:1;pointer-events:auto}.footer-top .brand-symbol{width:43px}.footer-top{padding-bottom:40px}.footer-bottom p{font-size:13px}.note{font-size:14px}.stats p,.type-label,.eyebrow,.tags span{font-size:13px}.button{background:#064c7d}.button.white{background:white;color:var(--navy)}.button.white:hover{background:#cce7f5}.hero-cinema .button.white{background:transparent;color:white}.hero-cinema .button.white:hover{background:white;color:var(--navy)}
@keyframes waterIntro{from{transform:scale(1.035)}to{transform:scale(1)}}
@media(max-width:1100px){nav{gap:22px}.brand-statement{gap:25px 45px}.cinema-content h1{font-size:64px}.page-intro{padding-left:35px;padding-right:35px}.identity-lockup{padding:35px}.identity-lockup strong{font-size:27px}.brand-identity{gap:35px}.brand-statement h2{font-size:41px}.band-feature{padding:35px;gap:35px}.band-feature h3{font-size:25px}}
@media(max-width:760px){header{height:80px;padding:0 20px}.brand-symbol{width:34px;height:44px}.brand-wordmark{font-size:21px}.brand-wordmark small{font-size:9px}.home-page .menu-toggle{color:white;border-color:#ffffff70}.home-page nav{color:var(--dark)}nav{top:80px;position:absolute;gap:0}.nav-products,nav:hover .nav-products,nav:focus-within .nav-products{position:static;box-shadow:none;display:flex;background:#f1f5f8;margin-top:10px;padding:8px 18px;gap:0}.nav-products a{font-size:14px}.home-page nav a:hover{color:var(--navy)}.hero-cinema{min-height:700px;height:90svh;max-height:900px}.cinema-content{padding:120px 24px 115px}.cinema-content h1{font-size:44px;line-height:1.35}.cinema-content .eyebrow{font-size:10px;letter-spacing:.1em;margin-bottom:22px}.cinema-description{font-size:15px;margin:25px 0 32px}.hero-photo{background-position:65% center}.hero-shade{background:#02182655}.hero-bottom{left:24px;right:24px;bottom:25px;display:block;font-size:9px;letter-spacing:.11em}.hero-bottom>a{margin-top:12px}.brand-statement{display:block;padding-top:65px;padding-bottom:65px}.brand-statement h2{font-size:36px;margin:20px 0 26px}.brand-statement>div>p{font-size:15px}.solutions-section{padding:60px 0}.band-feature{grid-template-columns:1fr;padding:28px 24px;gap:22px;margin-top:25px}.band-preview{padding:10px}.band-feature h3{font-size:27px}.band-feature .eyebrow{font-size:11px}.product-image{height:220px}.product-info h3{font-size:24px}.brand-principles{padding:60px 0}.principle-grid{grid-template-columns:1fr;gap:35px}.principle-grid article{padding-top:20px}.principle-grid article>span{margin-bottom:18px}.principle-grid h3{font-size:25px}.principle-grid p{font-size:15px}.page-intro{padding:50px 24px;margin-bottom:40px}.page-intro h1{font-size:38px}.cta h2{font-size:32px}.band-overview,.brand-identity{grid-template-columns:1fr;gap:30px;padding-bottom:55px}.type-list{grid-template-columns:1fr;gap:30px}.type-list article>span{font-size:34px;margin-bottom:10px}.identity-lockup{padding:35px;justify-content:center}.identity-lockup img{width:65px}.identity-lockup strong{font-size:28px}.type-captions{font-size:13px}.band-drawing{padding:16px}.band-drawing .note{font-size:12px}.note{font-size:13px}.eyebrow{font-size:12px}.back-top{right:15px;bottom:15px}.home-page header .nav-products{color:var(--dark)}}
/* Verified rev-9 product-selection content. */
.product-shortcuts{display:flex;gap:12px;flex-wrap:wrap;padding-bottom:30px}.product-shortcuts>a{border:1px solid var(--line);padding:9px 17px;font-size:14px;background:white}.product-shortcuts>a:hover{border-color:var(--navy);color:var(--navy)}.section-lead{margin-top:25px;font-size:16px;line-height:1.9}.comparison-table table{min-width:660px}.comparison-table tbody th,.tf-spec-table tbody th{background:var(--soft);color:var(--dark);font-weight:600;border-bottom:1px solid var(--line);width:19%}.comparison-table tbody small{font-size:13px;color:var(--gray);line-height:1.8}.comparison-table td{width:40.5%;line-height:1.9}.seal-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-top:35px}.seal-grid article{border:1px solid var(--line);padding:30px}.seal-grid h3{font-size:23px;margin-bottom:20px}.seal-key{margin-top:28px;padding-top:20px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:15px;font-size:14px}.seal-key strong{color:var(--navy)}.sealing-guide{padding-bottom:25px}.connection-caption{font-size:14px!important;color:var(--navy)!important;background:var(--soft);padding:16px 20px;margin-bottom:20px}.technical-fields{margin:15px 0 28px;border-top:1px solid var(--line)}.technical-fields summary{font-size:15px}.technical-fields summary span{font-size:13px;font-weight:400;color:var(--gray);margin-left:10px}.technical-fields .full-width{grid-column:1/-1}.technical-fields label{margin-bottom:5px}
@media(max-width:760px){.seal-grid{grid-template-columns:1fr;gap:20px}.seal-grid article{padding:24px}.seal-grid h3{font-size:21px}.product-shortcuts{gap:8px;padding-bottom:25px}.product-shortcuts>a{font-size:13px;padding:8px 11px}.section-lead{font-size:15px}.comparison-table td,.comparison-table th{padding:14px 16px}.connection-caption{font-size:13px!important}}
/* Keep the full legal wordmark balanced on narrow screens. */
.brand-wordmark small{letter-spacing:.08em}.identity-lockup small{letter-spacing:.08em}
@media(max-width:760px){.identity-lockup{padding:28px 24px;gap:16px}.identity-lockup img{width:50px}.identity-lockup strong{font-size:clamp(20px,5.7vw,28px)}.identity-lockup small{font-size:10px}}