@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500;600;700;800&display=swap');
:root{--blue:#086ab7;--navy:#072b49;--ink:#171d25}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;font-family:'Noto Sans KR',Arial,sans-serif;color:var(--ink);letter-spacing:-.045em}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}header{height:100px;padding:0 4.5%;display:flex;align-items:center;justify-content:space-between;position:absolute;top:0;width:100%;z-index:10;color:white;border-bottom:1px solid #ffffff30;transition:background .2s}header.fixed{position:fixed;color:var(--ink);background:#fff;box-shadow:0 3px 14px #00000008}.brand{display:flex;align-items:center;gap:12px;font-size:24px;font-weight:700;letter-spacing:-1px}.brand small{display:block;font-size:9px;letter-spacing:1.3px;font-weight:500;margin-top:3px}.symbol{font:italic 800 43px Arial;letter-spacing:-9px;border:2px solid currentColor;border-radius:50%;padding:0 13px 0 3px;transform:rotate(-12deg)}.symbol span{font-size:30px}nav{display:flex;gap:46px;font-size:16px;font-weight:500}.menu{border:0;background:none;width:36px;color:inherit;display:none;padding:4px}.menu span{display:block;height:2px;background:currentColor;margin:7px 0}.hero{height:940px;min-height:700px;max-height:1100px;height:100svh;position:relative;color:white;background:#15364f url('assets/chemical-plant-dusk.webp') 62% center/cover}.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,#071b2cb0,#06182a45),linear-gradient(0deg,#02182bc7,transparent 60%)}.hero-copy{position:absolute;top:32%;left:10%;right:5%}.eyebrow{font-size:13px;letter-spacing:2.8px;font-weight:500;margin-bottom:28px}.hero h1{font-size:clamp(34px,4.1vw,70px);line-height:1.45;font-weight:300;margin:0;letter-spacing:-.065em}strong{font-weight:700}.hero-desc{font-size:17px;font-weight:300;line-height:1.9;color:#e1e8ef;margin-top:30px}.hero-bottom{position:absolute;bottom:65px;left:10%;right:10%;display:grid;grid-template-columns:repeat(3,1fr)}.hero-bottom a{display:flex;justify-content:space-between;padding:24px 30px;border-top:1px solid #ffffff70;border-right:1px solid #ffffff30;font-size:22px;font-weight:500}.hero-bottom a:first-child{padding-left:0}.hero-bottom a:last-child{border-right:0}.hero-bottom small{display:block;font-size:13px;font-weight:300;margin-top:12px}.hero-bottom b{font-size:26px;font-weight:300}.hero-bottom a:hover{background:#ffffff0f}.hero-index{position:absolute;bottom:20px;left:10%;font-size:10px;letter-spacing:2px;display:flex;align-items:center;gap:15px}.hero-index i{height:1px;width:55px;background:white}.section{padding:110px max(6%,calc((100% - 1280px)/2));}.section-label{font-size:11px;letter-spacing:2.4px;color:#78848f;margin-bottom:42px;font-weight:600}.intro-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:80px}.blue{color:var(--blue);letter-spacing:-.03em;font-size:14px;margin-top:0}h2{font-size:38px;line-height:1.55;letter-spacing:-.065em;font-weight:300;margin:0}p{line-height:1.85}.intro-text{font-size:15px;color:#626a73}.intro-text p:first-child{margin-top:0}.text-link{display:flex;justify-content:space-between;border-bottom:1px solid #c8d0d7;padding:20px 0;color:#1d2832;font-weight:600}.stats{display:grid;grid-template-columns:repeat(4,1fr);margin-top:75px;border-top:1px solid #dce1e5;padding-top:42px;gap:20px}.stats strong{font-size:35px;letter-spacing:-1.5px;font-weight:500}.stats strong span{font-size:15px;margin-left:8px}.stats p{font-size:13px;color:#747e87}.business{display:grid;grid-template-columns:1fr 1.15fr;background:var(--blue);color:white}.business-intro{padding:85px 13%;background:linear-gradient(#062e4bc9,#062e4bc9),url('assets/industry.jpg') center/cover}.business .section-label{color:#b8cedf}.business-intro h2{font-size:37px}.business-intro p{font-size:15px;color:#cbdce9;margin-top:25px}.business-list{padding:25px 9%}.business-list article{display:flex;align-items:center;gap:24px;padding:30px 0;border-bottom:1px solid #ffffff33}.business-list article:last-child{border:0}.business-list article>span{font-size:12px;color:#a9d8ff;align-self:flex-start;padding-top:10px}.business-list h3{font-size:24px;margin:0 0 5px;font-weight:500}.business-list p{font-size:12px;margin:0 0 12px;letter-spacing:.2px;color:#c1e0f8}.business-list small{font-size:12px;font-weight:300}.business-list b{margin-left:auto;font-weight:300;font-size:22px}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:30px}.section-heading>p{color:#727d87;font-size:14px;margin:0 0 8px}.filters{display:flex;gap:10px;margin:45px 0 20px}.filters button{border:1px solid #d9e0e6;background:white;color:#697581;padding:11px 25px;font-size:13px;border-radius:0}.filters button.active{background:var(--blue);border-color:var(--blue);color:white}.project-row{display:grid;grid-template-columns:70px 1fr 210px;gap:20px;align-items:center;border-bottom:1px solid #dfe4e8;padding:26px 12px}.project-row:first-child{border-top:2px solid #263c4b}.project-row>span{color:#a5afb8;font-size:13px}.project-row h3{font-size:17px;font-weight:500;margin:0 0 7px}.project-row p{font-size:12px;color:#75818c;margin:0}.project-row>small{font-size:12px;color:#74808b;text-align:right}.footnote{font-size:11px;color:#88929b;margin-top:18px}.quality{background:#f1f5f8}.quality .section{background:linear-gradient(110deg,#f1f5f8 60%,#e2edf5)}.quality h2{font-size:44px}.quality>.section>p{color:#6d7985;font-size:14px}.quality-grid{display:grid;grid-template-columns:repeat(3,1fr);margin-top:50px;gap:35px}.quality-grid article{border-top:1px solid #a9bccb;padding-top:25px}.quality-grid span{color:var(--blue);font-size:10px;letter-spacing:2px}.quality-grid h3{font-size:25px;font-weight:500;margin:16px 0}.quality-grid p{font-size:13px;color:#72808c}.history{display:grid;grid-template-columns:1fr 1.2fr;gap:70px}.history>div>p{font-size:14px;color:#7c8690}.timeline{border-top:2px solid #253a4a}.timeline article{display:grid;grid-template-columns:90px 1fr;border-bottom:1px solid #e0e6eb;padding:25px 0}.timeline b{font-size:23px;font-weight:500;color:var(--blue)}.timeline p{margin:0;font-size:13px;color:#64717d}.contact{border-top:1px solid #e1e6ea}.contact-phone{font-size:36px;font-weight:500;color:var(--blue);letter-spacing:-1.5px}.contact-phone span{font-size:26px;margin-left:25px}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;margin-top:55px}.contact-grid h3{font-size:21px;margin-top:0}.contact-grid p{font-size:16px}dl{display:grid;grid-template-columns:100px 1fr;gap:14px;font-size:13px;color:#6d7b87;margin:30px 0}dd{margin:0;color:#253745}.outline-link{display:inline-block;border:1px solid #c5d0d9;padding:13px 23px;font-size:12px}.map{background:#f1f4f6;display:flex;align-items:center;justify-content:center;position:relative;min-height:300px}.map img{width:100%;height:300px;object-fit:contain}.map span{position:absolute;bottom:15px;right:15px;background:white;padding:9px;font-size:11px}footer{background:#142431;color:#adb9c3;padding:55px 6%;display:flex;align-items:flex-start;gap:65px;font-size:11px}footer .brand{color:white;font-size:20px}footer p{margin:0 0 8px}footer small{font-size:9px;letter-spacing:.5px;color:#6e8393}footer .brand small{color:#adb9c3}.top{margin-left:auto;color:white;white-space:nowrap;font-size:11px}a:focus-visible,button:focus-visible{outline:3px solid #54bfff;outline-offset:5px}
@media(min-width:1600px){.hero-copy{left:12%}.hero-bottom{left:12%;right:12%}}@media(max-width:1050px){nav{gap:22px;font-size:14px}.brand{font-size:20px}.intro-grid{gap:35px}h2{font-size:31px}.stats strong{font-size:27px}.business-intro{padding:65px 10%}.business-intro h2{font-size:30px}.contact-phone{font-size:27px}}@media(max-width:760px){header{height:80px;padding:0 6%}.brand{font-size:18px}.brand small{font-size:7px}.symbol{font-size:34px}.symbol span{font-size:25px}.menu{display:block}nav{display:none;position:absolute;top:80px;left:0;right:0;background:white;color:#172c3d;padding:22px 7%;flex-direction:column;gap:0;box-shadow:0 10px 15px #0001}nav.open{display:flex}nav a{padding:14px 0;border-bottom:1px solid #eee}.hero{min-height:730px;max-height:1000px}.hero-copy{left:7%;top:28%}.hero h1{font-size:34px}.eyebrow{font-size:10px;letter-spacing:2px}.hero-desc{font-size:13px}.hero-bottom{left:7%;right:7%;bottom:55px;grid-template-columns:1fr 1fr}.hero-bottom a{font-size:16px;padding:20px 15px}.hero-bottom a:nth-child(2){border-right:0}.hero-bottom a:nth-child(3){display:none}.hero-bottom small{font-size:10px}.section{padding:70px 7%}.section-label{margin-bottom:28px;font-size:9px}.intro-grid,.history,.contact-grid{grid-template-columns:1fr;gap:30px}h2{font-size:29px}.intro-text{font-size:13px}.stats{grid-template-columns:1fr 1fr;gap:25px;margin-top:40px;padding-top:30px}.stats strong{font-size:27px}.stats p{font-size:11px}.business{grid-template-columns:1fr}.business-intro{padding:60px 7%}.business-list{padding:15px 7%}.business-list article{padding:25px 0}.business-list h3{font-size:21px}.business-list small{font-size:10px}.section-heading{display:block}.section-heading>p{margin-top:20px;font-size:12px}.filters{margin-top:30px}.filters button{padding:9px 18px}.project-row{grid-template-columns:25px 1fr;gap:10px;padding:22px 0}.project-row>small{grid-column:2;text-align:left;font-size:11px}.project-row h3{font-size:14px}.project-row p{font-size:11px}.quality h2{font-size:33px}.quality-grid{grid-template-columns:1fr;gap:20px}.quality-grid article{display:grid;grid-template-columns:1fr 1.2fr;gap:0 15px;padding-top:20px}.quality-grid h3{grid-column:1;font-size:20px;margin:10px 0}.quality-grid p{grid-column:2;grid-row:1/3;margin:0;font-size:11px;align-self:center}.quality-grid span{font-size:8px}.timeline article{grid-template-columns:70px 1fr}.timeline p{font-size:12px}.contact-phone{display:inline-block;margin-top:25px;font-size:28px}.contact-grid{margin-top:35px}.contact-grid p{font-size:14px}footer{padding:40px 7%;gap:25px;flex-wrap:wrap}footer>div{order:3;width:100%;font-size:10px}footer .top{align-self:center}html{scroll-padding-top:79px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* Original company logo supplied by Central Engineering. */
.brand .company-logo{display:block;width:158px;height:auto;max-height:84px;object-fit:contain;border-radius:9px;background:#fff}footer .brand .company-logo{width:158px;max-height:none}@media(max-width:760px){.brand .company-logo{width:120px;max-height:64px}footer .brand .company-logo{width:140px}}

/* Transparent logo and company wordmark. */
.brand{gap:14px;flex-shrink:0}.brand .company-logo,footer .brand .company-logo{width:120px;height:auto;max-height:70px;background:transparent;border-radius:0}.company-name{font-size:23px;letter-spacing:-1px;white-space:nowrap;font-weight:700}footer .company-name{font-size:20px}@media(max-width:1100px){header nav{gap:20px}.company-name{font-size:20px}.brand .company-logo{width:100px}}@media(max-width:900px){header nav{gap:15px;font-size:12px}.company-name{font-size:18px}.brand{gap:10px}.brand .company-logo{width:88px}}@media(max-width:760px){.brand .company-logo,footer .brand .company-logo{width:82px;max-height:48px}.company-name,footer .company-name{font-size:18px}.brand{gap:10px}}@media(max-width:360px){.company-name{font-size:16px}.brand .company-logo{width:70px}}

/* White lettering over the hero; original colors on the sticky white header. */
.logo-filter-defs{position:absolute;overflow:hidden;pointer-events:none}header:not(.fixed) .company-logo,footer .company-logo{filter:url(#logo-light-text)}header.fixed .company-logo{filter:none}

.filters{flex-wrap:wrap}@media(max-width:760px){.filters{gap:8px}.filters button{padding:9px 14px}}

.directions{padding:32px;background:#f1f4f6;border-top:2px solid var(--blue);align-self:start}.directions h3{margin:0 0 20px;font-size:21px}.directions p{font-size:14px;line-height:1.9;color:#64717d;margin:0 0 18px}.directions p:last-child{margin-bottom:0}.directions strong{font-weight:500;color:#253745}.directions a{color:var(--blue);white-space:nowrap}@media(max-width:760px){.directions{padding:25px}.directions p{font-size:13px}}

/* Contact: aligned information rows and a separate visit guide. */
.contact .section-label{margin-bottom:28px}
.contact-title{padding-bottom:42px;border-bottom:1px solid #dce3e9}
.contact-title h2{font-size:36px;line-height:1.5}
.contact-title>p{margin:18px 0 0;font-size:15px;line-height:1.8;color:#65727e}
.contact-layout{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:80px;padding-top:46px}
.contact-caption{display:block;font-size:12px;font-weight:500;letter-spacing:.03em;color:#647383}
.contact-call{padding-bottom:30px}
.contact-call>a{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-top:10px;color:var(--blue);font-size:clamp(30px,3vw,44px);font-weight:600;letter-spacing:-1.2px;line-height:1.35}
.contact-call>a>span{font-size:26px;font-weight:400}
.contact-info{display:block;margin:0;border-top:1px solid #dce3e9}
.contact-info>div{display:grid;grid-template-columns:90px minmax(0,1fr);gap:20px;padding:21px 0;border-bottom:1px solid #e5eaf0;align-items:baseline}
.contact-info dt{font-size:13px;font-weight:500;color:#75818c;line-height:1.8}
.contact-info dd{font-size:15px;font-weight:400;color:#253745;line-height:1.8;overflow-wrap:anywhere}
.visit-guide{padding:30px 34px;background:#f4f7fa;align-self:start}
.visit-guide>.contact-caption{font-size:10px;letter-spacing:1.8px;color:var(--blue)}
.visit-guide h3{margin:11px 0 18px;font-size:23px;font-weight:600;letter-spacing:-.045em}
.visit-guide>p{margin:0;color:#6b7986;font-size:13px;line-height:1.85;word-break:keep-all}
.visit-address{margin:10px 0 24px;font-size:19px;line-height:1.65;font-weight:500;letter-spacing:-.035em;color:#223647}
.map-button{display:flex;justify-content:space-between;align-items:center;gap:20px;background:#fff;border:1px solid #cbd6e0;padding:14px 18px;font-size:13px;font-weight:500;line-height:1.6;color:#234159;transition:background .2s,border-color .2s}
.map-button:hover{background:#eaf3fa;border-color:#7da9cd}
.visit-guide>.visit-note{margin-top:20px;font-size:12px;line-height:1.8;color:#788490}
@media(max-width:1050px){.contact-layout{gap:40px}.visit-guide{padding:28px}.contact-info>div{grid-template-columns:75px minmax(0,1fr);gap:12px}}
@media(max-width:760px){.contact-title{padding-bottom:30px}.contact-title h2{font-size:29px}.contact-title>p{font-size:13px;margin-top:15px}.contact-layout{grid-template-columns:1fr;gap:34px;padding-top:30px}.contact-call{padding-bottom:25px}.contact-call>a{font-size:34px}.contact-info>div{padding:18px 0;grid-template-columns:70px minmax(0,1fr);gap:14px}.contact-info dd{font-size:14px}.contact-info dt{font-size:12px}.visit-guide{padding:28px}.visit-address{font-size:18px}.visit-guide h3{font-size:22px}}

/* Linked pages and shared navigation. */
.nav-group{position:relative;align-self:stretch;display:flex;align-items:center}.main-nav{height:100%}.nav-parent{display:flex;align-items:center;height:100%}.sub-menu{display:none;position:absolute;top:100%;left:-24px;min-width:205px;padding:12px 0;background:#fff;color:#253745;border-top:2px solid var(--blue);box-shadow:0 12px 25px #11273920}.sub-menu a{display:block;padding:12px 24px;font-size:13px;white-space:nowrap}.sub-menu a:hover,.sub-menu a:focus-visible{background:#f0f6fa;color:var(--blue)}.nav-group:hover .sub-menu,.nav-group:focus-within .sub-menu{display:block}
.business-list article{display:block}.business-detail-link{display:flex;align-items:center;gap:24px;width:100%}.business-detail-link>span{font-size:12px;color:#a9d8ff;align-self:flex-start;padding-top:10px}.business-detail-link:hover h3{text-decoration:underline;text-underline-offset:6px}.business-detail-link:focus-visible{outline:2px solid white}
footer{flex-wrap:wrap}.footer-nav{display:flex;width:100%;gap:35px;border-bottom:1px solid #ffffff20;padding-bottom:25px;margin-bottom:0;font-size:13px;color:#d0dbe4}.footer-nav a:hover{color:white;text-decoration:underline}
.subpage main{padding-top:100px}.sub-hero{padding:65px 7%;background:linear-gradient(90deg,#092b47ed,#163f5bc4),url('assets/industry.jpg') center 45%/cover;color:white}.sub-hero>p{font-size:10px;letter-spacing:3px;margin:0 0 16px;color:#b5cbdd}.sub-hero h1{font-size:38px;font-weight:500;margin:0 0 25px}.breadcrumbs{font-size:12px;color:#bfd1de;display:flex;gap:10px}.breadcrumbs a:hover{color:white}.page-tabs{display:flex;justify-content:center;gap:0;border-bottom:1px solid #dce5eb;background:#fff;flex-wrap:wrap}.page-tabs a{font-size:14px;padding:21px 30px;border-bottom:3px solid transparent;color:#73808a}.page-tabs a[aria-current=page]{color:var(--blue);border-color:var(--blue);font-weight:600}.page-tabs a:hover{background:#f3f7fa;color:var(--blue)}.subpage .section{padding-top:75px;padding-bottom:85px}.subpage .contact{border-top:0}.business-lead{font-size:18px;color:#647383;max-width:720px;line-height:1.9;margin:25px 0 45px}.business-scope{display:grid;grid-template-columns:1fr 1fr;gap:70px;margin-bottom:50px;border-top:1px solid #d9e1e7;padding-top:30px}.business-scope h3{font-size:21px;font-weight:500}.business-scope ul{padding-left:20px;color:#647383;line-height:2.3;font-size:15px}.business-scope p{color:#647383;font-size:15px}.business-page>.outline-link{background:var(--blue);color:white;border-color:var(--blue)}
@media(max-width:760px){.main-nav{height:auto;max-height:calc(100svh - 80px);overflow-y:auto}.nav-group{display:block}.nav-parent{font-weight:600}.sub-menu,.nav-group:hover .sub-menu{display:block;position:static;box-shadow:none;border:0;min-width:0;padding:0 0 10px}.sub-menu a{font-size:12px!important;padding:9px 15px!important;color:#6c7a85;border:0!important}.footer-nav{position:static;display:flex;flex-direction:row;flex-wrap:wrap;gap:14px 23px;background:transparent;box-shadow:none;padding:0 0 22px;color:#c7d4df}.footer-nav a{padding:0;border:0;font-size:12px}.subpage main{padding-top:80px}.sub-hero{padding:45px 7%}.sub-hero h1{font-size:29px}.page-tabs{position:static;display:flex;flex-direction:row;padding:0;background:white;box-shadow:none;gap:0}.page-tabs a{padding:16px 18px;font-size:12px}.subpage .section{padding-top:50px;padding-bottom:60px}.business-scope{grid-template-columns:1fr;gap:20px}.business-lead{font-size:15px}.breadcrumbs{font-size:10px}.business-detail-link{gap:20px}}

/* Source-based detailed company and project information. */
.detail-section{border-top:1px solid #e1e7ec}.detail-section h2{font-size:32px;font-weight:500}.detail-intro{max-width:850px;color:#667682;font-size:15px;line-height:1.95;margin:24px 0 35px;word-break:keep-all}
.facts-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 45px;margin:35px 0 0;border-top:2px solid #243d50}.facts-grid>div{display:grid;grid-template-columns:130px 1fr;gap:20px;padding:23px 0;border-bottom:1px solid #e1e7ec;line-height:1.9}.facts-grid dt{color:#788590;font-size:13px}.facts-grid dd{font-size:14px;word-break:keep-all}
.capability-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:25px;margin-top:32px}.capability-grid article{border-top:2px solid #2678b5;padding:25px 0}.capability-grid article>span,.service-detail-grid article>span{color:#2b7bb5;font-size:12px}.capability-grid h3{font-size:20px;font-weight:500;margin:15px 0}.capability-grid p{font-size:14px;color:#75818c;line-height:1.9}
.expanded-history{grid-template-columns:1fr 1.6fr}.expanded-history .timeline article{grid-template-columns:115px 1fr;gap:25px}.expanded-history .timeline b{font-size:17px}.expanded-history .timeline p{line-height:1.9}
.service-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:35px 60px;margin-top:40px}.service-detail-grid article{border-top:1px solid #cedae3;padding-top:25px}.service-detail-grid h3{font-size:22px;font-weight:500;margin:14px 0}.service-detail-grid p{color:#697985;font-size:15px;line-height:1.95;word-break:keep-all}
.related-records{margin-top:35px;border-top:2px solid #263e50}.related-records article{display:grid;grid-template-columns:70px 1fr;gap:25px;padding:25px 0;border-bottom:1px solid #dce4eb}.related-records article>span{color:var(--blue);font-size:14px}.related-records h3{font-size:17px;font-weight:500;margin:0}.related-records p{font-size:13px;color:#7b8893;margin:10px 0 0}.detail-actions{display:flex;gap:15px;flex-wrap:wrap;margin-top:35px}
.certificate-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:40px 28px;margin-top:35px}.certificate-card{border:1px solid #dbe4eb;background:white;min-width:0}.certificate-preview{display:flex;position:relative;height:340px;align-items:center;justify-content:center;background:#f0f3f6;padding:25px}.certificate-preview img{max-width:100%;width:auto;height:100%;object-fit:contain;box-shadow:0 3px 10px #132f4514}.certificate-preview>span{position:absolute;bottom:12px;right:12px;background:#173c57;color:white;padding:8px 12px;font-size:11px}.certificate-preview:hover{background:#e4edf5}.certificate-info{padding:24px}.certificate-info .cert-category{color:var(--blue);font-size:12px;margin:0 0 10px}.certificate-info h3{font-size:20px;line-height:1.5;font-weight:500;margin:0 0 12px}.certificate-info p{font-size:13px;color:#687b89;line-height:1.8}.certificate-info small{display:block;font-size:11px;color:#7d8b95;line-height:1.8}.archive-cert{grid-template-columns:minmax(0,650px)}.archive-cert .certificate-preview{height:380px}
@media(max-width:1050px){.certificate-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.capability-grid{grid-template-columns:1fr 1fr}.expanded-history{grid-template-columns:1fr}.facts-grid>div{grid-template-columns:100px 1fr;gap:15px}}
@media(max-width:760px){.detail-section h2{font-size:26px}.detail-intro{font-size:14px}.facts-grid{grid-template-columns:1fr}.facts-grid>div{padding:18px 0}.facts-grid dd{font-size:13px}.capability-grid{gap:20px}.capability-grid h3{font-size:18px}.capability-grid p{font-size:13px}.service-detail-grid{grid-template-columns:1fr;gap:25px}.service-detail-grid h3{font-size:20px}.service-detail-grid p{font-size:14px}.expanded-history .timeline article{grid-template-columns:90px 1fr;gap:15px}.expanded-history .timeline b{font-size:14px}.certificate-grid{grid-template-columns:1fr}.certificate-preview{height:360px}.certificate-info h3{font-size:20px}.archive-cert .certificate-preview{height:250px}.related-records article{grid-template-columns:45px 1fr;gap:15px}.related-records h3{font-size:15px}}

/* Accessible in-page certificate viewer. */
.certificate-dialog{width:min(940px,calc(100vw - 48px));max-width:none;height:min(92dvh,1200px);max-height:92dvh;padding:0;border:0;border-radius:8px;color:#23394b;background:#eef2f5;box-shadow:0 25px 90px #0005;overflow:hidden}
.certificate-dialog[open]{display:flex;flex-direction:column}
.certificate-dialog::backdrop{background:rgba(6,20,33,.78)}
.certificate-dialog-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 24px;background:white;border-bottom:1px solid #dce4eb;flex-shrink:0}
.certificate-dialog-bar h2{font-size:17px;font-weight:500;line-height:1.5;letter-spacing:-.04em;margin:0}
.certificate-close{display:flex;align-items:center;gap:12px;flex-shrink:0;border:1px solid #ccd7df;background:white;color:#203b50;padding:9px 14px;font-size:13px;border-radius:4px}
.certificate-close span{font-size:23px;line-height:1}.certificate-close:hover{background:#eaf2f8}
.certificate-dialog-body{overflow:auto;padding:24px;min-height:0;overscroll-behavior:contain}
.certificate-full-image{display:block;width:100%;height:auto;max-width:100%;margin:auto;background:white}
@media(max-width:760px){.certificate-dialog{width:calc(100vw - 20px);height:94dvh;max-height:94dvh}.certificate-dialog-bar{padding:14px;gap:12px}.certificate-dialog-bar h2{font-size:14px}.certificate-dialog-body{padding:10px}.certificate-close{padding:8px 10px;font-size:12px}}

/* Complete project archive, separate from the home-page highlights. */
.project-search{margin-top:42px;padding:25px 28px;background:#f3f6f9}.project-search label{display:block;font-size:13px;font-weight:500;margin-bottom:12px;color:#4c6374}.project-search-controls{display:flex;gap:10px}.project-search input{flex:1;min-width:0;border:1px solid #d3dce4;background:white;padding:14px 16px;font:inherit;font-size:14px;border-radius:0}.project-search button{border:1px solid var(--blue);background:var(--blue);color:white;padding:12px 24px;font-size:13px}.project-search #project-reset{background:white;color:#4c6374;border-color:#cfd9e2}.project-search input:focus-visible{outline:2px solid #4595ce;outline-offset:2px}.archive-years{display:flex;flex-wrap:wrap;gap:8px;margin:30px 0}.archive-years button{border:1px solid #d7e1e8;background:white;padding:11px 17px;color:#586c7c;font-size:13px}.archive-years button span{font-size:10px;opacity:.65;margin-left:7px}.archive-years button.active{background:#096bb6;border-color:#096bb6;color:white}.archive-status{color:#6d7d89;font-size:13px;margin-bottom:25px}.archive-year-group{margin-bottom:48px}.archive-year-group>h3{font-size:26px;color:#173e5a;font-weight:500;display:flex;align-items:center;gap:18px;border-bottom:2px solid #244a66;padding-bottom:18px;margin:0}.archive-year-group>h3>span{font-size:12px;font-weight:400;color:#7b8c99}.archive-year-group ol{list-style:none;padding:0;margin:0}.archive-year-group li{display:grid;grid-template-columns:55px 1fr;gap:20px;padding:22px 10px;border-bottom:1px solid #e0e7ed}.archive-number{font-size:12px;color:#8e9ca7;padding-top:4px}.archive-year-group h4{font-size:16px;font-weight:500;line-height:1.8;margin:0;word-break:keep-all}.archive-year-group li p{font-size:12px;line-height:1.8;color:#718390;margin:7px 0 0}.archive-empty{padding:55px 20px;text-align:center;color:#6c7e8c;background:#f4f7fa}.archive-source{border-top:1px solid #dce5eb;padding-top:20px}.archive-source p{font-size:11px;color:#81909b;line-height:1.9;margin:7px 0}@media(max-width:760px){.project-search{padding:20px}.project-search-controls{flex-wrap:wrap}.project-search input{flex-basis:100%;font-size:16px}.project-search button{flex:1;padding:11px}.archive-years button{padding:10px 13px}.archive-year-group li{grid-template-columns:28px 1fr;gap:12px;padding:19px 0}.archive-year-group h4{font-size:14px}.archive-year-group>h3{font-size:23px}}

/* Annotated home-page refinements. */
#business .business-detail-link{display:flex;flex-direction:column;align-items:flex-start;gap:8px}#business .business-detail-link>.business-number{padding:0;font-size:12px}#business .business-detail-link>b{margin:0;font-size:24px}#business .business-list article{padding:30px 0}#business .business-detail-link h3{margin-top:0}
.home-quality .safety-accent{color:#b85b0c}.home-quality .quality-accent{color:#086ab7}.home-quality h2 strong{position:relative}.home-quality .quality-grid{gap:28px}.home-quality .quality-grid article{display:block;padding-top:25px}.cert-brand-panel{height:160px;margin-bottom:25px;padding:15px;display:flex;align-items:center;justify-content:center;background:#fff;border:1px solid #e1e9ef;border-radius:4px}.source-mark{display:block;width:100%;height:auto}.iso-emblem{width:130px;height:130px;display:flex;flex-direction:column;align-items:center;justify-content:center;border:3px solid #176ca8;border-radius:50%;outline:1px solid #b5d2e7;outline-offset:4px;color:#176ca8;gap:2px}.home-quality .iso-emblem span{font:8px Arial,sans-serif;letter-spacing:1.2px;color:#176ca8}.iso-emblem strong{font:bold 38px Arial,sans-serif;letter-spacing:1px;line-height:1.1}.iso-emblem b{font:600 17px Arial,sans-serif;letter-spacing:.5px}.home-quality .iso-emblem small{font:8px Arial,sans-serif;letter-spacing:2px;color:#176ca8}.kosha-emblem{width:190px;text-align:center}.kosha-emblem .source-mark{border-radius:3px;background:#0875a8}.kosha-emblem strong{display:block;font:600 17px Arial,sans-serif;color:#08689d;letter-spacing:1px;margin-top:12px}.power-emblems{display:grid;grid-template-columns:1fr 1fr;gap:12px 10px;align-content:center;padding:20px 12px}.power-emblems .source-mark{max-height:30px}.power-emblems .source-mark:last-child{grid-column:1 / -1;max-width:150px;justify-self:center}.home-quality .quality-grid h3{margin:16px 0}.home-quality .quality-grid p{line-height:1.9}
@media(max-width:760px){.home-quality .quality-grid{grid-template-columns:1fr}.home-quality .quality-grid article{display:grid;grid-template-columns:140px minmax(0,1fr);gap:0 20px;align-items:center}.home-quality .cert-brand-panel{grid-column:1;grid-row:1 / 4;width:140px;height:140px;padding:10px;margin:0}.home-quality .quality-grid article>span{grid-column:2;grid-row:1;align-self:end}.home-quality .quality-grid article>h3{grid-column:2;grid-row:2;font-size:19px;margin:9px 0}.home-quality .quality-grid article>p{grid-column:2;grid-row:3;font-size:12px;margin:0;align-self:start}.home-quality .iso-emblem{width:106px;height:106px}.iso-emblem strong{font-size:30px}.iso-emblem b{font-size:14px}.home-quality .iso-emblem span{font-size:6px}.home-quality .power-emblems{display:flex;flex-direction:column;gap:6px}.power-emblems .source-mark{width:104px;max-height:20px}.power-emblems .source-mark:last-child{max-width:104px}.kosha-emblem strong{font-size:14px}.home-quality .safety-accent,.home-quality .quality-accent{white-space:nowrap}}

/* User-supplied certification and power-company logos. */
.cert-brand-panel>img{display:block;width:100%;height:100%;object-fit:contain}.supplied-iso{padding:12px}.supplied-kosha{padding:25px}.supplied-power{padding:8px}@media(max-width:760px){.home-quality .supplied-iso{padding:10px}.home-quality .supplied-kosha{padding:12px}.home-quality .supplied-power{padding:5px}}
/* Mobile layout: readable content and comfortable touch targets. */
body{overflow-wrap:break-word}main,section,article,main div{min-width:0}
@media(max-width:900px){
 html{scroll-padding-top:80px}header{position:fixed;height:80px;padding:0 5%}.menu{display:block;width:44px;height:44px;padding:10px;flex-shrink:0}
 header .main-nav{display:none;position:absolute;top:80px;left:0;right:0;height:auto;max-height:calc(100dvh - 80px);overflow-y:auto;overscroll-behavior:contain;background:#fff;color:#172c3d;padding:12px 6% 24px;box-shadow:0 12px 20px #0002;gap:0;flex-direction:column}
 header .main-nav.open{display:flex}.nav-group{display:block}.nav-parent{height:auto;min-height:48px;font-size:16px;font-weight:600;border-bottom:1px solid #e1e7ec}
 .sub-menu,.nav-group:hover .sub-menu,.nav-group:focus-within .sub-menu{display:block;position:static;box-shadow:none;border:0;min-width:0;padding:4px 0 12px}
 .sub-menu a{display:flex;align-items:center;min-height:44px;font-size:14px!important;padding:10px 14px!important;border:0!important;white-space:normal;color:#617384}
 body.menu-open{overflow:hidden}header.menu-open{background:#fff;color:var(--ink)}header.menu-open .company-logo{filter:none}
 .menu[aria-expanded=true] span:first-child{transform:translateY(4.5px) rotate(45deg)}.menu[aria-expanded=true] span:last-child{transform:translateY(-4.5px) rotate(-45deg)}
 .subpage main{padding-top:80px}.filters button,.archive-years button,.outline-link,.certificate-close{min-height:44px}
}
@media(max-width:760px){
 .hero{height:auto;min-height:100svh;max-height:none;display:flex;flex-direction:column;padding:145px 6% 32px;gap:48px}
 .hero-copy{position:relative;inset:auto}.hero h1{font-size:clamp(26px,6.6vw,40px);line-height:1.55}.hero-desc{font-size:14px;line-height:1.9;margin:24px 0 0}.hero-desc br{display:none}.eyebrow{font-size:10px;letter-spacing:1.5px}
 .hero-bottom{position:relative;inset:auto;grid-template-columns:1fr;width:100%;margin-top:auto}.hero-bottom a,.hero-bottom a:first-child,.hero-bottom a:nth-child(3){display:flex;padding:16px 0;border-right:0;font-size:16px;align-items:center}.hero-bottom small{font-size:12px;margin-top:5px}.hero-bottom b{font-size:24px}
 .section{padding:60px 6%}h2{font-size:clamp(25px,6.3vw,32px);line-height:1.55;word-break:keep-all;overflow-wrap:anywhere}.intro-text{font-size:14px}.section-label{font-size:10px}.stats{gap:24px 12px}.stats strong{font-size:clamp(21px,5.5vw,29px)}.stats p{font-size:12px}
 .business-intro{padding:55px 6%}.business-list{padding:10px 6%}.business-list small{font-size:13px;line-height:1.9}.business-list p{font-size:13px}.section-heading>p{font-size:14px}
 .filters{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:6px}.filters button{padding:10px 2px;font-size:13px}
 .project-row h3,.archive-year-group h4{font-size:15px;line-height:1.8;overflow-wrap:anywhere}.project-row p,.project-row>small,.archive-year-group li p{font-size:12px}.footnote{font-size:12px;line-height:1.8}
 .quality h2{font-size:clamp(28px,7vw,36px)}.home-quality .quality-grid{gap:28px}.home-quality .quality-grid article{display:block}.home-quality .cert-brand-panel{width:100%;height:180px;margin:0 0 20px;padding:16px}.home-quality .supplied-power{height:auto;aspect-ratio:2 / 1;padding:10px}.home-quality .quality-grid article>span{font-size:10px}.home-quality .quality-grid article>h3{font-size:23px;margin:10px 0}.home-quality .quality-grid article>p{font-size:14px}
 .timeline p{font-size:13px}.contact-title h2{font-size:29px}.contact-title>p{font-size:14px}.contact-info a{display:inline-flex;align-items:center;min-height:44px}.contact-info>div{align-items:center;padding:12px 0}.contact-call>a{min-height:48px;font-size:clamp(28px,8vw,36px)}.visit-guide{padding:24px}.visit-guide>p{font-size:14px}
 .page-tabs a{min-height:48px;padding:14px 16px;font-size:14px}.facts-grid>div{grid-template-columns:80px minmax(0,1fr);gap:12px}.facts-grid dd{font-size:14px;overflow-wrap:anywhere}.expanded-history .timeline article{grid-template-columns:76px minmax(0,1fr);gap:12px}.related-records h3{overflow-wrap:anywhere}
 .certificate-preview{height:auto;aspect-ratio:3 / 4;max-height:420px}.certificate-preview img{max-height:100%}.certificate-close{min-width:72px}.certificate-info{padding:20px}.certificate-dialog-body{touch-action:pan-x pan-y pinch-zoom}
 footer{padding:36px 6% calc(30px + env(safe-area-inset-bottom));gap:24px}.footer-nav{gap:4px 22px}.footer-nav a{display:flex;align-items:center;min-height:44px;font-size:13px}footer .top{display:flex;align-items:center;min-height:44px}footer>div{font-size:12px;line-height:1.8}footer small{font-size:10px}
}
@media(max-width:380px){header .brand{gap:7px}header .brand .company-logo{width:65px}header .company-name{font-size:16px}.capability-grid{grid-template-columns:1fr}.contact-info>div{grid-template-columns:60px minmax(0,1fr);gap:8px}.project-search{padding:16px}.certificate-dialog-bar{padding:12px;gap:8px}}
@media(max-width:760px){.hero-desc br{display:initial}}
/* Photo-led company and service introductions. */
.company-story{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:64px;align-items:center}.company-story .intro-grid{display:block}.company-story .intro-text{margin-top:25px}.company-visual{margin:0}.company-visual img{display:block;width:100%;height:460px;object-fit:cover}.company-visual figcaption,.image-caption{font-size:11px;color:#6b7c89;line-height:1.7;margin:12px 0 0}.company-story h2{font-size:clamp(28px,2.6vw,38px)}
.visual-business{background:#f2f6f9}.visual-business .section-heading>p{font-size:15px}.service-photo-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;margin-top:42px}.service-photo-card{display:block;background:#fff;border:1px solid #e0e7ed;transition:box-shadow .2s,transform .2s}.service-photo-card:hover{box-shadow:0 12px 32px #12365214;transform:translateY(-3px)}.service-photo{position:relative;overflow:hidden;aspect-ratio:16 / 9}.service-photo img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .4s}.service-photo-card:hover img{transform:scale(1.025)}.service-number{position:absolute;left:20px;top:20px;background:#083653eb;color:#fff;font-size:14px;padding:9px 12px;letter-spacing:1px}.service-card-copy{padding:27px 30px}.service-card-copy h3{font-size:25px;font-weight:600;margin:0 0 12px}.service-card-copy p{font-size:14px;color:#697b88;line-height:1.9;margin:0}.service-card-link{display:flex;align-items:center;justify-content:space-between;min-height:44px;margin-top:20px;border-top:1px solid #e5ebef;padding-top:15px;font-size:13px;color:var(--blue);font-weight:500}.service-card-link b{font-size:23px;font-weight:400}
.service-feature{margin:0 0 42px;background:#edf2f6}.service-feature>img{display:block;width:100%;height:clamp(280px,34vw,490px);object-fit:cover}.service-feature figcaption{display:flex;justify-content:space-between;align-items:center;gap:22px;padding:22px 26px}.service-feature figcaption strong{font-size:18px;font-weight:500;color:#23465f}.service-feature figcaption span{font-size:11px;color:#6b7c89;line-height:1.8}.business-page .business-lead{margin-bottom:30px}
@media(max-width:1050px){.company-story{gap:35px}.company-visual img{height:420px}.service-card-copy{padding:24px}.service-card-copy h3{font-size:22px}}
@media(max-width:760px){.company-story{grid-template-columns:1fr;gap:28px}.company-story .intro-grid{grid-row:1}.company-visual img{height:auto;aspect-ratio:4 / 3}.company-story h2{font-size:28px}.company-story .intro-text{margin-top:20px}.service-photo-grid{grid-template-columns:1fr;gap:24px;margin-top:30px}.service-card-copy{padding:22px}.service-card-copy h3{font-size:22px}.service-card-copy p{font-size:14px}.service-photo-card:hover{transform:none}.service-number{left:14px;top:14px}.service-feature>img{height:auto;aspect-ratio:4 / 3}.service-feature figcaption{display:block;padding:20px}.service-feature figcaption strong{display:block;font-size:17px;line-height:1.7}.service-feature figcaption span{display:block;margin-top:8px}.service-feature{margin-bottom:30px}}

.project-site-photo{margin:20px 0 8px}.project-site-photo img{display:block;width:100%;height:auto;border-radius:3px}
/* Home company metrics: strong typographic hierarchy. */
.type-stats{gap:0;padding-top:38px;grid-template-columns:repeat(4,minmax(0,1fr))}.type-stats>div{padding:4px 24px 0;border-left:1px solid #e0e7ec}.type-stats>div:first-child{padding-left:0;border-left:0}.type-stats>div:last-child{padding-right:0}.type-stats strong{display:flex;align-items:baseline;white-space:nowrap;font-family:Arial,'Noto Sans KR',sans-serif;font-size:clamp(32px,4.3vw,58px);font-weight:800;letter-spacing:-.065em;line-height:1.15;color:#086ab7;font-variant-numeric:lining-nums tabular-nums}.type-stats strong>span{font-family:'Noto Sans KR',sans-serif;font-size:14px;font-weight:500;letter-spacing:-.04em;color:#637789;margin-left:9px}.type-stats .metric-cert{font-size:clamp(24px,3vw,40px);letter-spacing:-.055em;color:#12364f;min-height:67px;align-items:center;gap:7px}.type-stats .metric-cert em{font-style:normal;color:#086ab7}.type-stats .metric-cert .metric-suffix{font-family:Arial,sans-serif;font-size:inherit;font-weight:800;letter-spacing:inherit;color:#086ab7;margin-left:0}.type-stats p{font-size:13px;line-height:1.7;color:#647586;margin:17px 0 0;word-break:keep-all}
@media(max-width:1050px) and (min-width:761px){.type-stats>div{padding-left:16px;padding-right:16px}.type-stats .metric-cert{min-height:52px}}
@media(max-width:760px){.type-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 0;padding-top:28px}.type-stats>div{padding:0 0 0 18px}.type-stats>div:nth-child(odd){padding-left:0;padding-right:12px;border-left:0}.type-stats strong{font-size:clamp(34px,9vw,48px)}.type-stats strong>span{font-size:12px;margin-left:6px}.type-stats .metric-cert{font-size:clamp(24px,6.3vw,34px);min-height:40px;gap:5px}.type-stats p{font-size:12px;margin-top:12px}}
/* Hero shortcuts: clear pointer and keyboard feedback. */
.hero-bottom a{position:relative;transition:background .2s ease,box-shadow .2s ease;isolation:isolate}
.hero-bottom a::after{content:"";position:absolute;inset:0;pointer-events:none;border:1px solid #ffffff85;opacity:0;transition:opacity .2s ease}
.hero-bottom a>b{display:flex;align-items:center;justify-content:center;flex:0 0 36px;width:36px;height:36px;border-radius:50%;transition:background .2s ease,color .2s ease,transform .2s ease}
.hero-bottom a:focus-visible{background:#086ab7f2;box-shadow:0 12px 28px #00172c40;outline:3px solid #a5ddff;outline-offset:3px}
.hero-bottom a:focus-visible::after{opacity:1}
.hero-bottom a:focus-visible>b{background:#fff;color:#086ab7;transform:rotate(90deg)}
.hero-bottom a:focus-visible small{color:#fff}
@media(hover:hover) and (pointer:fine){
 .hero-bottom a:hover{background:#086ab7f2;box-shadow:0 12px 28px #00172c40}
 .hero-bottom a:hover::after{opacity:1}
 .hero-bottom a:hover>b{background:#fff;color:#086ab7;transform:rotate(90deg)}
 .hero-bottom a:hover small{color:#fff}
}
.hero-bottom a:active{background:#075a99}
@media(prefers-reduced-motion:reduce){.hero-bottom a::after{transition:none}.hero-bottom a:hover>b,.hero-bottom a:focus-visible>b{transform:none}}

/* Chemical plant imagery: keep workers and electrical equipment in view. */
.company-visual img{object-position:64% center}
@media(max-width:600px){.hero{background-position:65% center}}