@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;500;600;700;800;900&display=swap');
:root{--navy:#061b3c;--blue:#0068d9;--cyan:#00b6bd;--ink:#10213a;--muted:#5a687a;--line:#dce3ec;--light:#f3f7fb}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;font-family:'Noto Sans KR','Malgun Gothic',sans-serif;color:var(--ink);font-size:16px;line-height:1.7;word-break:keep-all}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button,a,input,textarea,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}img{display:block;width:100%;object-fit:cover}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--cyan);outline-offset:5px}h1,h2,h3,p{margin:0}h2{font-size:clamp(2rem,3.2vw,3rem);line-height:1.35;letter-spacing:-.05em;font-weight:800}h3{font-size:1.4rem;line-height:1.4;letter-spacing:-.03em}.wrap{width:min(1280px,calc(100% - 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@media(min-width:1600px){.hero-content{padding-top:150px}}@media(max-width:1100px){.wrap{width:calc(100% - 64px)}.header{padding-inline:32px}.header nav{gap:20px;font-size:.85rem}.brand span{display:none}.hero-content{padding-top:110px}.hero{min-height:640px}.intro-bar>.wrap{gap:25px}.intro-bar p{margin-right:0}.intro-bar a{display:none}.section{padding-block:80px}.contact{gap:50px}.product-visual{height:260px}.application-layout{gap:30px}.guide-grid{gap:20px}.guide-grid h3{font-size:1rem}.about-layout{gap:50px}.project-card img{height:185px}}
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@media(max-width:380px){.project-grid{grid-template-columns:1fr}.hero{height:740px}.hero-bottom>a{display:none}.guide-grid{grid-template-columns:1fr}.trust-grid{grid-template-columns:1fr}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}
.project-card[hidden]{display:none}.blog-links{display:grid;grid-template-columns:1fr 1fr;gap:25px;margin-top:25px}.blog-links a{padding:25px;background:white;border:1px solid var(--line)}.blog-links span{font-size:.75rem;color:var(--blue);display:block;margin-bottom:10px}.blog-links strong{font-size:1.05rem;display:block}.blog-links p{font-size:.85rem;color:var(--muted);margin-top:10px}.blog-links a:hover{border-color:var(--blue)}@media(max-width:760px){.blog-links{grid-template-columns:1fr}}

/* Supplied GDK brand assets and first-screen blog access */
.header .brand .logo-image{width:128px;height:44px;object-fit:contain}.nav-blog{color:#078f5a;border-bottom:2px solid #03c75a;padding-block:10px}.blog-button{background:#03c75a;color:#062c1e;gap:12px;font-weight:800}.blog-button:hover{background:#22dc75}.naver-mark{font:900 1.15rem Arial,sans-serif}.hero-blog-caption{font-size:.85rem;color:#d2e7de;margin-top:15px}.hero-actions{flex-wrap:wrap}.full-brand{width:min(100%,410px);height:auto;object-fit:contain}.about-bottom{background:#000;padding:20px;border:0;justify-content:center}.about-bottom .full-brand{max-width:370px}footer{background:#000;color:white}.footer-brand{display:block;flex:0 0 310px}.footer-brand .full-brand{width:310px}.footer-main p,.footer-company,.footer-bottom{color:#b6c3d1}.footer-bottom{border-color:#ffffff30}.footer-main{gap:50px}.footer-main>a:last-child{color:white}
@media(max-width:1100px){.header nav{gap:17px}.header .brand .logo-image{width:115px}.hero-actions{gap:10px}}@media(max-width:760px){.header .brand .logo-image{width:105px;height:35px}.header nav .nav-blog{background:#e8fff2;text-align:center;color:#087542;border:1px solid #03c75a;margin-top:8px}.hero{height:760px}.hero-content{padding-top:80px}.hero-actions{max-width:350px}.hero-actions .blog-button{width:100%;padding:17px 20px}.hero-actions .ghost{flex:1}.hero-blog-caption{font-size:.8rem;max-width:300px;line-height:1.7}.footer-main{gap:24px}.footer-brand{flex-basis:240px}.footer-brand .full-brand{width:240px}.footer-main>a:last-child{margin-left:0}.about-bottom .full-brand{max-width:310px}}
.about-bottom{background:transparent}footer{background:var(--navy)}
.full-brand{mix-blend-mode:screen}.about-bottom,.footer-brand{isolation:auto}

.form-honeypot{position:absolute;left:-9999px;width:1px;height:1px}.form-consent{display:flex;align-items:flex-start;gap:10px;font-size:.9rem;margin:18px 0 10px}.form-consent input{flex:none;width:18px;height:18px;margin-top:6px}.form-privacy{font-size:.85rem;color:var(--muted);margin-bottom:18px}.form-privacy summary{cursor:pointer}.form-privacy p{padding-block:12px}.form-privacy a{text-decoration:underline}.brief-form button:disabled{opacity:.65;cursor:wait}

.attachments{border:1px solid var(--line);padding:20px;margin-block:20px}.attachments legend{font-weight:700}.attachments legend span{font-weight:400;color:var(--muted);font-size:.85rem}.attachments input[type=file]{width:100%;max-width:100%;font-size:.85rem}.attachments .form-note{margin-bottom:18px}#attachment-status{font-size:.9rem;color:var(--blue)}

.audio-solution{display:grid;grid-template-columns:1fr 1fr;gap:80px;padding:50px;background:var(--light);margin-bottom:100px}.audio-solution h2{margin-bottom:24px}.audio-solution .tags{margin-block:24px}.audio-details article{padding:24px 0;border-bottom:1px solid var(--line)}.audio-details h3{margin-bottom:10px}.audio-details p{color:var(--muted)}.radio-options{flex-wrap:wrap}@media(max-width:760px){.audio-solution{grid-template-columns:1fr;gap:20px;padding:25px;margin-bottom:60px}}

.advertising-card{margin-top:40px;padding:28px;border:1px solid var(--line);background:var(--light);scroll-margin-top:110px}.advertising-card .eyebrow{margin-bottom:12px}.advertising-card h3{font-size:1.6rem;margin-bottom:16px}.advertising-duration{color:var(--blue);margin-bottom:12px}.advertising-duration strong{font-size:2rem}.advertising-card dl{margin-block:20px}.advertising-card dt{font-weight:700;margin-top:12px}.advertising-card dd{margin:4px 0 0;font-size:.9rem}.advertising-map{display:block;border:0;width:100%;height:220px;background:#e4ebf3}.map-link{display:block;font-size:.85rem;text-decoration:underline;margin:10px 0 20px}.advertising-card .button{width:100%}.advertising-phone{display:block;text-align:center;margin-top:12px;font-size:.9rem}.header nav{gap:22px}.nav-ad{font-size:.85rem;color:var(--blue)}#brief-form{scroll-margin-top:110px}@media(max-width:1100px) and (min-width:761px){.header{padding-inline:25px}.header nav{gap:13px;font-size:.85rem}.nav-contact{padding:10px 14px}}

.naver-location{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;min-height:160px;padding:24px;background:white;border:1px solid #c9e6d4;margin:20px 0;color:#183b2a;text-align:center}.naver-location:hover{background:#edf9f1}.naver-location-mark{display:flex;align-items:center;justify-content:center;width:40px;height:40px;background:#03c75a;color:white;font:bold 28px Arial}.naver-location>span:last-child{font-size:.85rem;color:var(--muted)}

.header nav a.section-active{color:var(--blue);box-shadow:inset 0 -3px 0 var(--blue)}.header nav a.nav-contact.section-active{background:var(--blue);color:white;border-color:var(--blue);box-shadow:none}.header nav a.nav-ad.section-active{background:#edf5ff}
.radio-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.radio-options label{min-width:0}.radio-options label>span{display:flex;align-items:center;justify-content:center;min-height:54px;height:100%;padding:12px 10px;font-size:.9rem;line-height:1.4}.radio-options label:last-child{grid-column:1 / -1}@media(max-width:360px){.radio-options{grid-template-columns:1fr}.radio-options label:last-child{grid-column:auto}}

.blog-qr-card{flex:none;display:flex;flex-direction:column;align-items:center;gap:14px;padding:20px;background:white;border:1px solid #d9eadf;border-radius:12px;box-shadow:0 8px 24px #10213a08}.blog-strip .blog-qr-image img{width:112px;height:112px;object-fit:contain}.blog-qr-button{display:flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:11px 16px;background:#03a94d;color:white;border-radius:7px;font-size:.875rem;font-weight:700;white-space:nowrap;transition:background .2s}.blog-qr-button:hover{background:#028b40}.blog-qr-button>span{font:bold 19px Arial}.blog-strip>.button{display:none}@media(max-width:760px){.blog-strip>.blog-qr-card{width:100%}.blog-qr-button{width:100%}}

.blog-cases-heading{margin:45px 0 25px}.blog-cases-heading p{margin-top:12px;color:var(--muted);max-width:900px}.case-specs{display:grid;grid-template-columns:85px 1fr;gap:6px 12px;font-size:.85rem;margin:20px 0}.case-specs dt{color:var(--muted)}.case-specs dd{margin:0;overflow-wrap:anywhere}.case-source{font-size:.85rem;color:var(--blue);text-decoration:underline}.case-more{text-align:center;margin-top:30px}.case-more p{margin-bottom:15px}.case-more button[hidden]{display:none}.blog-project img{object-fit:contain;background:#f3f7fb}.project-filter{flex-wrap:wrap}

.portfolio-back{display:inline-block;margin-bottom:28px;color:var(--blue);font-weight:700}.portfolio-back:hover{text-decoration:underline}

.case-pagination{display:flex;justify-content:center;gap:8px;flex-wrap:wrap}.case-pagination button{min-width:42px;min-height:44px;padding:8px 12px;border:1px solid #d8e2ed;border-radius:8px;background:white;color:var(--navy);font:inherit;cursor:pointer}.case-pagination button.active{background:var(--blue);border-color:var(--blue);color:white;font-weight:700}.case-pagination button:disabled{opacity:.4;cursor:default}.case-pagination button:focus-visible{outline:3px solid #39c8c0;outline-offset:3px}.portfolio-note{color:var(--muted);font-size:.9rem;margin-bottom:24px}.project-filter{scroll-margin-top:110px}

.solution-menu{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}.solution-menu button{font:inherit;font-weight:700;color:var(--navy);border:1px solid var(--line);background:white;padding:13px 24px;border-radius:8px;cursor:pointer}.solution-menu button:hover,.solution-menu button:focus-visible{border-color:var(--blue);color:var(--blue);background:#eff7ff}.specialty-product{border-top:4px solid var(--blue)}.specialty-product:nth-last-child(1){border-top-color:#00aaa4}

.hero-image{object-position:50% 25%}@media(max-width:760px){.hero-image{object-position:52% 15%}}