:root{
  --bg:#EAEFF3;--surface:#fff;--ink:#14202B;--ink-soft:#4A5865;--ink-faint:#7B8894;
  --line:#D9DFE4;--accent:#1B4F72;--accent-dark:#123650;--accent-soft:#E3EDF4;
  --panel:#0F1B26;--panel-text:#F2F5F7;--panel-muted:#9FB0BE;
  --radius:3px;--maxw:1280px;--maxw-wide:1440px;--gutter:clamp(20px,4vw,48px);--section-pad:clamp(56px,8vw,104px);
  --ease:cubic-bezier(.22,1,.36,1);
  --font:'Pretendard Variable','Pretendard',ui-sans-serif,system-ui,-apple-system,'Malgun Gothic',sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{margin:0;font-family:var(--font);background:var(--bg);color:var(--ink);line-height:1.7;letter-spacing:-0.01em;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{letter-spacing:-0.015em;margin:0}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.2em}
.wrap{max-width:var(--maxw);margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter)}
.sec{padding:var(--section-pad) 0}
.sec-alt{background:var(--surface)}
.sec-dark{background:var(--panel);color:var(--panel-text)}
.sec-dark .sec-desc{color:var(--panel-muted)}
.sec-title{font-size:clamp(1.6rem,3.6vw,2.6rem);line-height:1.25;font-weight:800;margin-bottom:14px}
.sec-desc{color:var(--ink-soft);max-width:660px;line-height:1.75;margin-bottom:36px}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.12em;color:var(--accent);margin-bottom:12px}
.sec-dark .eyebrow{color:#8FC3E6}

/* header */
.hdr{position:sticky;top:0;z-index:50;background:var(--surface);border-bottom:1px solid var(--line)}
.hdr-inner{max-width:var(--maxw-wide);margin:0 auto;padding:.9rem var(--gutter);display:flex;align-items:center;gap:28px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.1rem;letter-spacing:-0.02em}
.logo-mark{width:26px;height:26px;background:var(--accent) url("/assets/favicon/favicon.svg") center/cover;border-radius:var(--radius)}
.hdr-nav{display:flex;gap:26px;margin-left:auto;font-size:.92rem;font-weight:600;color:var(--ink-soft)}
.hdr-nav a:hover{color:var(--accent)}
.hdr-cta{padding:.6rem 1.15rem;border-radius:var(--radius);background:var(--accent);color:#fff;font-weight:700;font-size:.88rem;transition:background .25s var(--ease)}
.hdr-cta:hover{background:var(--accent-dark)}
.hdr-overlay{position:absolute;left:0;right:0;background:transparent;border-bottom:0;color:#fff}
.hdr-overlay .hdr-nav{color:rgba(255,255,255,.85)}
.hdr-overlay .hdr-cta{background:transparent;border:1px solid #fff}
.hdr-overlay .nav-toggle span{background:#fff}
.nav-toggle{display:none;width:40px;height:40px;background:none;border:0;padding:0;cursor:pointer;position:relative}
.nav-toggle span{position:absolute;left:9px;right:9px;height:2px;background:var(--ink)}
.nav-toggle span:first-child{top:15px}.nav-toggle span:last-child{top:23px}
#mob-nav{display:flex;flex-direction:column;background:var(--surface);color:var(--ink);border-top:1px solid var(--line)}
#mob-nav[hidden]{display:none}
#mob-nav a{padding:14px var(--gutter);border-bottom:1px solid var(--line);font-weight:600}
@media (max-width:860px){.hdr-nav,.hdr-cta{display:none}.nav-toggle{display:block;margin-left:auto}}
@media (min-width:861px){#mob-nav{display:none!important}}

/* hero */
.hero-split{position:relative;min-height:min(100vh,760px);overflow:hidden;background:var(--panel);color:#fff;display:flex}
.hero-split-media{position:absolute;inset:0}
.hero-split-media img{width:100%;height:100%;object-fit:cover}
.hero-split::after{content:'';position:absolute;inset:0;background:linear-gradient(100deg,rgba(8,14,20,.86) 0%,rgba(8,14,20,.6) 48%,rgba(8,14,20,.38) 100%);z-index:1}
.hero-split-text{position:relative;z-index:2;max-width:var(--maxw-wide);margin:0 auto;width:100%;padding:clamp(96px,10vw,130px) var(--gutter) 56px;display:flex;flex-direction:column;justify-content:center;gap:12px}
.hero-eyebrow{align-self:flex-start;padding:.35rem .85rem;border:1px solid rgba(255,255,255,.45);border-radius:var(--radius);font-size:.78rem;font-weight:700;letter-spacing:.12em}
.hero-split-text h1{font-size:clamp(2.6rem,7vw,5.6rem);font-weight:900;line-height:1.05;letter-spacing:-0.02em}
.hero-sub{color:rgba(255,255,255,.88);max-width:560px;font-size:1.02rem;line-height:1.75;margin-bottom:6px}
.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:10px}
.btn{display:inline-block;padding:.95rem 1.6rem;border-radius:var(--radius);font-weight:700;font-size:.95rem;border:1px solid transparent;transition:.25s var(--ease)}
.btn-primary{background:#fff;color:var(--accent-dark)}
.btn-primary:hover{background:var(--accent-soft)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dark)}
.btn-line{border-color:rgba(255,255,255,.6);color:#fff}
.btn-line:hover{background:rgba(255,255,255,.12)}
.btn-line-dark{border-color:var(--line);color:var(--ink)}
.btn-line-dark:hover{border-color:var(--accent);color:var(--accent)}

/* 1px 라인 그리드 */
.grid{display:grid;gap:1px;background:var(--line);border:1px solid var(--line)}
.grid > *{background:var(--surface)}
.sec-dark .grid{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.14)}
.sec-dark .grid > *{background:var(--panel)}
.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}.g2{grid-template-columns:repeat(2,1fr)}
@media (max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.g3,.g4,.g2{grid-template-columns:1fr}}
.cell{padding:30px 26px}
.cell h3{font-size:1.12rem;font-weight:800;margin-bottom:8px}
.cell p{color:var(--ink-soft);font-size:.96rem;margin:0}
.sec-dark .cell p{color:var(--panel-muted)}
.cell .num{display:block;font-size:.82rem;font-weight:800;color:var(--accent);letter-spacing:.1em;margin-bottom:10px}
.sec-dark .cell .num{color:#8FC3E6}

/* 사례 카드: 전/후 50:50 비교 */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media (max-width:980px){.case-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.case-grid{grid-template-columns:1fr}}
.js .case-card.is-hidden{display:none}
.case-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:border-color .25s var(--ease),transform .25s var(--ease)}
.case-card:hover{border-color:var(--accent);transform:translateY(-3px)}
.cmp{display:grid;grid-template-columns:1fr 1fr;gap:2px;background:var(--line)}
.cmp figure{margin:0;position:relative;aspect-ratio:4/5;overflow:hidden;background:#dde3e8}
.cmp img{width:100%;height:100%;object-fit:cover}
.cmp figcaption{position:absolute;left:8px;top:8px;background:rgba(15,27,38,.82);color:#fff;font-size:.72rem;font-weight:700;padding:3px 8px;border-radius:2px;letter-spacing:.04em}
.case-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.case-body h3{font-size:1.08rem;font-weight:800;line-height:1.4}
.case-body p{color:var(--ink-soft);font-size:.92rem;margin:0}
.case-meta{margin:6px 0 0;padding:0;list-style:none;font-size:.82rem;color:var(--ink-faint);display:grid;gap:2px}
.case-meta b{color:var(--ink-soft);font-weight:700;margin-right:6px}
.more-wrap{text-align:center;margin-top:34px}
.more-wrap button{cursor:pointer;font-family:inherit;background:var(--surface)}

/* 단계 · 표 · 목록 */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.14)}
.steps li{list-style:none;background:var(--panel);padding:30px 24px}
.steps strong{display:block;font-size:1.05rem;margin-bottom:6px}
.steps span{color:var(--panel-muted);font-size:.93rem}
.steps li::before{counter-increment:s;content:"STEP 0" counter(s);display:block;font-size:.76rem;font-weight:800;letter-spacing:.12em;color:#8FC3E6;margin-bottom:12px}
@media (max-width:860px){.steps{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.steps{grid-template-columns:1fr}}
.table-wrap{overflow-x:auto;margin:0 0 1.4em;border:1px solid var(--line);background:var(--surface)}
table{border-collapse:collapse;width:100%;min-width:520px;font-size:.94rem}
caption{text-align:left;font-weight:700;padding:12px 16px;border-bottom:1px solid var(--line)}
th,td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--accent-soft);font-weight:700;white-space:nowrap}
tr:last-child td{border-bottom:0}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}
.chips li{padding:8px 14px;border:1px solid var(--line);background:var(--surface);border-radius:var(--radius);font-size:.9rem;font-weight:600}

/* 가이드 카드 */
.guide-card{display:flex;flex-direction:column;gap:0;background:var(--surface)}
.guide-card .rel-media{aspect-ratio:4/3}
.guide-card:hover h3{color:var(--accent)}

/* FAQ */
.faq{max-width:860px}
.faq details{border-bottom:1px solid var(--line);background:var(--surface)}
.faq details:first-child{border-top:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:20px 48px 20px 16px;font-weight:700;font-size:1.02rem;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);font-size:1.4rem;color:var(--accent);transition:transform .25s var(--ease)}
.faq details[open] summary::after{content:"\2212"}
.faq .ans{padding:0 16px 22px;color:var(--ink-soft)}
.faq .ans p{margin:0}
.faq h3{font-size:inherit;font-weight:inherit;display:inline}

/* CTA */
.cta-band{background:var(--accent);color:#fff;text-align:center}
.cta-band .sec-title{margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.85);max-width:620px;margin:0 auto 26px}
.cta-band .btn-primary{color:var(--accent-dark)}

/* 서브페이지 */
.crumb{font-size:.84rem;color:var(--ink-faint);padding:22px 0 0}
.crumb a:hover{color:var(--accent)}
.crumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0;margin:0}
.crumb li+li::before{content:"/";margin-right:6px}
.page-head{padding:18px 0 34px}
.page-head h1{font-size:clamp(1.9rem,4.6vw,3.2rem);font-weight:900;line-height:1.2;margin-bottom:18px}
.answer{font-size:1.1rem;line-height:1.8;color:var(--ink);max-width:820px;padding:18px 22px;border-left:3px solid var(--accent);background:var(--accent-soft)}
.article{max-width:820px;margin:0 auto}
.article h2{font-size:clamp(1.35rem,2.6vw,1.8rem);font-weight:800;margin:2.2em 0 .7em;line-height:1.35}
.article h3{font-size:1.15rem;font-weight:800;margin:1.6em 0 .5em}
.article p,.article li{color:#27343F}
.article li{margin-bottom:.35em}
.figure{margin:1.8em auto;max-width:520px}
.figure img{width:100%;border:1px solid var(--line)}
.figure figcaption{font-size:.86rem;color:var(--ink-faint);padding-top:8px}
.facts{margin:0 0 2em}
.result-box{border:1px solid var(--line);background:var(--surface);padding:22px 26px;margin:2em 0}
.result-box h2{margin-top:0!important}
.quote{border-left:3px solid var(--accent);padding:6px 0 6px 20px;margin:2em 0;font-size:1.05rem;color:#27343F}
.quote cite{display:block;font-style:normal;font-size:.88rem;color:var(--ink-faint);margin-top:6px}
.updated{font-size:.84rem;color:var(--ink-faint);margin-top:2.4em}
.case-link{display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap;border:1px solid var(--accent);background:var(--accent-soft);padding:20px 24px;margin:2em 0}
.case-link p{margin:0;font-weight:600}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:26px}
@media (max-width:820px){.related-grid{grid-template-columns:1fr}}
.rel-card{display:flex;flex-direction:column;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:border-color .25s var(--ease),transform .25s var(--ease)}
.rel-card:hover{border-color:var(--accent);transform:translateY(-3px)}
.rel-media{display:block;aspect-ratio:4/3;overflow:hidden;background:#dde3e8}
.rel-media img{width:100%;height:100%;object-fit:cover}
.rel-body{display:flex;flex-direction:column;gap:6px;padding:16px 18px 20px}
.rel-body strong{font-size:1.02rem;line-height:1.4}
.rel-body span{font-size:.9rem;color:var(--ink-soft)}
.steps-list{counter-reset:n;padding:0;list-style:none}
.steps-list li{counter-increment:n;padding:16px 18px 16px 60px;position:relative;border:1px solid var(--line);background:var(--surface);margin-bottom:10px}
.steps-list li::before{content:counter(n);position:absolute;left:18px;top:14px;width:30px;height:30px;border-radius:50%;background:var(--accent);color:#fff;font-weight:800;display:grid;place-items:center;font-size:.9rem}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin:1.4em 0}

/* footer */
.ftr{background:var(--panel);color:var(--panel-text);padding:56px 0 90px}
.ftr-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:36px;padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,.14)}
@media (max-width:760px){.ftr-grid{grid-template-columns:1fr}}
.ftr-brand{font-weight:800;font-size:1.2rem;margin-bottom:8px}
.ftr-desc{color:var(--panel-muted);font-size:.92rem;max-width:380px}
.ftr-h{font-weight:700;font-size:.86rem;letter-spacing:.08em;color:#8FC3E6;margin-bottom:10px}
.ftr ul{list-style:none;padding:0;margin:0;display:grid;gap:6px;font-size:.92rem;color:var(--panel-muted)}
.ftr a:hover{color:#fff}
.ftr-biz{padding-top:22px;font-size:.82rem;color:var(--panel-muted)}
.ftr-biz p{margin:0 0 4px}

/* floating */
.floating-cta{position:fixed;right:18px;bottom:18px;z-index:60;display:flex;align-items:center;gap:8px;padding:.85rem 1.2rem;background:var(--accent);color:#fff;font-weight:700;font-size:.92rem;border-radius:var(--radius);box-shadow:0 6px 20px rgba(15,27,38,.28);transition:background .25s var(--ease)}
.floating-cta:hover{background:var(--accent-dark)}
@media (max-width:640px){.floating-cta{left:14px;right:14px;justify-content:center;padding:1rem}}
.not-found{text-align:center;padding:120px 0}
.consult-cta{display:flex;gap:12px;flex-wrap:wrap}

/* 섹션·헤딩 구분 강화 */
.sec{border-top:1px solid var(--line)}
.hero-split+.sec,.sec-dark,.cta-band{border-top:0}
.sec-title{position:relative;padding-top:18px}
.sec-title::before{content:"";position:absolute;left:0;top:0;width:44px;height:4px;background:var(--accent)}
.sec-dark .sec-title::before{background:#8FC3E6}
.cta-band .sec-title::before{left:50%;margin-left:-22px;background:#fff}
.sec-desc{padding-bottom:4px}
.article section+section,.article section+figure,.article figure+section{margin-top:44px;padding-top:36px;border-top:1px solid var(--line)}
.article section>h2:first-child{margin-top:0}
.article h2{margin:0 0 .9em;padding:0 0 12px 16px;border-left:5px solid var(--accent);border-bottom:1px solid var(--line);line-height:1.35}
.article h3{margin:1.9em 0 .6em;padding-left:12px;border-left:3px solid var(--line-h,#9DB4C6);font-size:1.12rem}
.article p{margin-bottom:1.15em}
.article ul,.article ol{margin-bottom:1.4em}
.article .table-wrap{margin:1.2em 0 1.6em}
.article figure.figure{border-top:0!important;padding-top:0!important;margin-top:32px;margin-bottom:8px}
.result-box{border-left:5px solid var(--accent);background:var(--accent-soft)}
.result-box h2{border:0;padding-left:0}
.cell h3,.case-body h3,.rel-body strong{border:0;padding:0}
.faq h3{border:0;padding:0;margin:0}
.page-head{border-bottom:1px solid var(--line);margin-bottom:36px}
.crumb+.page-head,.page-head{padding-bottom:30px}
.faq details[open] summary{background:var(--accent-soft)}