@font-face{font-family:'Pretendard Variable';font-weight:45 920;font-style:normal;font-display:swap;src:url('https://cdn.jsdelivr.net/npm/pretendard@1.3.9/dist/web/variable/woff2/PretendardVariable.woff2') format('woff2-variations')}
:root{--bg:#F4F3EF;--surface:#fff;--ink:#17191C;--ink-soft:#4B5058;--ink-faint:#858A92;--line:#DAD9D2;--accent:#28486B;--accent-dark:#1B3350;--accent-soft:#E4EAF1;--panel:#12161B;--panel-text:#F3F4F5;--panel-muted:#A3A9B0;--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',-apple-system,BlinkMacSystemFont,'Malgun Gothic',sans-serif}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--ink);line-height:1.7;letter-spacing:-.015em;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter)}
.sec{padding:var(--section-pad) 0}
.sec-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-dark{background:var(--panel);color:var(--panel-text)}
.sec-title{font-size:clamp(1.6rem,3.2vw,2.4rem);line-height:1.3;font-weight:800;letter-spacing:-.025em;margin-bottom:14px}
.sec+.sec:not(.sec-alt):not(.sec-dark){border-top:1px solid var(--line)}
.feat h3,.tcard h3,.ccard-body h3,.rcard h3,.steps h3{margin-top:0}
.sec-lead{color:var(--ink-soft);max-width:760px;margin-bottom:40px}
.sec-dark .sec-lead{color:var(--panel-muted)}
.eyebrow{display:block;font-size:.78rem;font-weight:700;letter-spacing:.12em;color:var(--accent);margin-bottom:10px}
.sec-dark .eyebrow{color:#9DB7D6}
/* header */
.hdr{position:fixed;top:0;left:0;right:0;z-index:50;background:linear-gradient(180deg,rgba(8,10,14,.55),rgba(8,10,14,0));transition:background .3s var(--ease)}
.hdr--solid{background:var(--bg);border-bottom:1px solid var(--line)}
.hdr-inner{max-width:var(--maxw-wide);margin:0 auto;padding:1.1rem var(--gutter);display:flex;align-items:center;justify-content:space-between;gap:20px}
.hdr-logo{font-weight:800;font-size:1.1rem;color:#fff;letter-spacing:-.02em}
.hdr-nav{display:flex;gap:26px;font-size:.9rem;font-weight:600;color:#fff}
.hdr-cta{display:inline-block;padding:.65rem 1.2rem;border-radius:var(--radius);background:var(--accent);color:#fff;font-weight:700;font-size:.88rem;border:1px solid var(--accent)}
.hdr--solid .hdr-logo,.hdr--solid .hdr-nav{color:var(--ink)}
.hdr-burger{display:none;background:none;border:0;cursor:pointer;min-width:44px;min-height:44px;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.hdr-burger span{display:block;width:22px;height:2px;background:#fff}
.hdr--solid .hdr-burger span{background:var(--ink)}
#mob-nav{display:none;position:fixed;inset:0;z-index:60;background:var(--panel);color:#fff;padding:80px var(--gutter) 32px;flex-direction:column;gap:18px;font-size:1.2rem;font-weight:700}
#mob-nav.open{display:flex}
#mob-close{position:absolute;top:18px;right:18px;background:none;border:0;color:#fff;font-size:2rem;cursor:pointer;min-width:44px;min-height:44px}
.sub-top{height:68px}
/* hero */
.hero-split{position:relative;height:100vh;min-height:560px;overflow:hidden;background:var(--panel);color:#fff}
.hero-media{position:absolute;inset:0}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,13,18,.86) 0%,rgba(10,13,18,.55) 55%,rgba(10,13,18,.25) 100%)}
.hero-text{position:relative;z-index:2;height:100%;max-width:var(--maxw-wide);margin:0 auto;padding:96px var(--gutter) 40px;display:flex;flex-direction:column;justify-content:center;gap:14px}
.hero-text h1{font-size:clamp(2.4rem,6vw,4.6rem);font-weight:800;line-height:1.12;letter-spacing:-.03em}
.hero-text .ans{max-width:640px;font-size:clamp(1rem,1.5vw,1.2rem);color:#E3E6EA}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:12px}
.btn{display:inline-block;padding:.95rem 1.5rem;border-radius:var(--radius);font-weight:700;font-size:.95rem;border:1px solid var(--accent);background:var(--accent);color:#fff;cursor:pointer;font-family:inherit}
.btn:hover{background:var(--accent-dark)}
.btn-line{background:transparent;border-color:#fff;color:#fff}
.btn-line:hover{background:#fff;color:var(--ink)}
.btn-dark-line{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-dark-line:hover{background:var(--ink);color:#fff}
.hero-meta{margin-top:18px;font-size:.82rem;color:var(--panel-muted)}
/* grids */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.feat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(22px,3vw,34px)}
.feat h3{font-size:1.15rem;margin-bottom:8px;font-weight:700}
.feat p{color:var(--ink-soft);font-size:.95rem}
.feat .num{font-size:.8rem;font-weight:700;color:var(--accent);letter-spacing:.12em;display:block;margin-bottom:10px}
/* type cards (NSEO) */
.tcard{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .3s var(--ease),border-color .3s}
.tcard:hover{transform:translateY(-4px);border-color:var(--accent)}
.tcard img{width:100%;aspect-ratio:4/3;object-fit:cover}
.tcard div{padding:20px 22px 24px}
.tcard h3{font-size:1.1rem;font-weight:700;margin-bottom:6px}
.tcard p{font-size:.9rem;color:var(--ink-soft)}
.grid5{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
/* compare case cards */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ccard{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:border-color .3s}
.ccard:hover{border-color:var(--accent)}
.ccard.is-hidden{display:none}
.cmp{display:grid;grid-template-columns:1fr 1fr;gap:2px;background:var(--line)}
.cmp figure{position:relative;margin:0}
.cmp img{width:100%;aspect-ratio:4/5;object-fit:cover}
.cmp figcaption{position:absolute;left:8px;top:8px;background:rgba(18,22,27,.82);color:#fff;font-size:.72rem;font-weight:700;padding:2px 8px;border-radius:2px;letter-spacing:.06em}
.ccard-body{padding:18px 20px 22px}
.ccard-body h3{font-size:1.05rem;font-weight:700;margin-bottom:6px;line-height:1.4}
.ccard-body dl{display:grid;grid-template-columns:auto 1fr;gap:2px 10px;font-size:.85rem;color:var(--ink-soft)}
.ccard-body dt{color:var(--ink-faint)}
.more-wrap{text-align:center;margin-top:36px}
/* steps */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.steps li{border-top:2px solid var(--accent);padding-top:16px}
.steps li::before{counter-increment:s;content:"0" counter(s);display:block;font-weight:800;color:#9DB7D6;margin-bottom:8px}
.steps h3{font-size:1.05rem;margin-bottom:6px}
.steps p{font-size:.9rem;color:var(--panel-muted)}
/* define section */
.def-lead{font-size:1.15rem;font-weight:600;max-width:820px;margin-bottom:18px}
.def-body{color:var(--ink-soft);max-width:820px;margin-bottom:34px}
/* tables */
.tbl-wrap{overflow-x:auto;margin:20px 0;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
table{width:100%;border-collapse:collapse;min-width:520px;font-size:.93rem}
th,td{padding:13px 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}
/* faq */
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:10px}
.faq summary{cursor:pointer;list-style:none;padding:18px 22px;font-weight:700;font-size:1rem;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-weight:400;font-size:1.4rem;line-height:1;color:var(--accent)}
.faq details[open] summary::after{content:"\2212"}
.faq .a{padding:0 22px 20px;color:var(--ink-soft)}
/* cta */
.cta-sec{text-align:center}
.cta-sec .sec-title{margin-bottom:12px}
.cta-sec .btn-row{justify-content:center}
/* article pages */
.crumb{font-size:.82rem;color:var(--ink-faint);padding:20px 0 0}
.crumb a:hover{color:var(--accent)}
.art{max-width:860px;margin:0 auto;padding:28px var(--gutter) 64px}
.art h1{font-size:clamp(1.9rem,4.4vw,3rem);font-weight:800;line-height:1.22;letter-spacing:-.03em;margin:14px 0 18px}
.art section{margin-top:48px;padding-top:40px;border-top:1px solid var(--line)}
.art section:first-of-type{margin-top:40px}
.art h2{font-size:clamp(1.3rem,2.4vw,1.7rem);font-weight:800;margin:0 0 18px;padding-left:14px;border-left:4px solid var(--accent);line-height:1.35;letter-spacing:-.02em}
.art h3{font-size:1.08rem;font-weight:700;margin:30px 0 10px;padding:8px 12px;background:var(--accent-soft);border-radius:var(--radius);color:var(--accent-dark)}
.art .tbl-wrap,.art figure{margin:26px 0}
.art h1+.answer{margin-top:6px}
.art p{margin-bottom:14px;color:#2A2E33}
.art .answer{font-size:1.1rem;font-weight:500;background:var(--accent-soft);border-left:3px solid var(--accent);padding:18px 22px;border-radius:var(--radius);color:var(--ink)}
.art ul.bul{list-style:disc;padding-left:1.3rem;margin-bottom:16px}
.art ul.bul li{margin-bottom:6px}
.art figure{margin:24px 0}
.art figure img{width:100%;border-radius:var(--radius);border:1px solid var(--line)}
.art figcaption{font-size:.85rem;color:var(--ink-faint);margin-top:8px}
.art .meta{font-size:.85rem;color:var(--ink-faint)}
.quote{border-left:3px solid var(--accent);padding:6px 0 6px 20px;margin:28px 0;font-size:1.05rem}
.quote cite{display:block;margin-top:8px;font-size:.85rem;color:var(--ink-faint);font-style:normal}
.see-case{display:inline-block;margin:10px 0 0;font-weight:700;color:var(--accent);border-bottom:2px solid var(--accent)}
.related{background:var(--surface);border-top:1px solid var(--line);padding:56px 0}
.related h2{font-size:1.4rem;margin-bottom:22px;font-weight:800}
.rcard{display:block;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.rcard:hover{border-color:var(--accent)}
.rcard img{width:100%;aspect-ratio:4/3;object-fit:cover}
.rcard div{padding:16px 18px 20px}
.rcard h3{font-size:1rem;font-weight:700;margin-bottom:4px;line-height:1.4}
.rcard p{font-size:.85rem;color:var(--ink-soft)}
/* consultation */
.guide{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin:18px 0 8px}
.guide .feat{padding:20px}
/* footer */
.ftr{background:var(--panel);color:var(--panel-muted);padding:56px 0 40px;font-size:.88rem}
.ftr a:hover{color:#fff}
.ftr-links{display:flex;flex-wrap:wrap;gap:8px 22px;margin-bottom:24px;color:#D6DADF;font-weight:600}
.ftr-info{line-height:1.9}
.ftr-name{color:#fff;font-weight:800;font-size:1.05rem;margin-bottom:8px}
/* floating */
.float-cta{position:fixed;right:18px;bottom:18px;z-index:40;background:var(--accent);color:#fff;font-weight:700;padding:.85rem 1.3rem;border-radius:var(--radius);box-shadow:0 6px 20px rgba(0,0,0,.22);font-size:.92rem}
.float-cta:hover{background:var(--accent-dark)}
@media(max-width:900px){
.grid3,.grid5,.case-grid{grid-template-columns:repeat(2,1fr)}
.steps{grid-template-columns:repeat(2,1fr)}
.hdr-nav,.hdr-cta{display:none}
.hdr-burger{display:flex}
}
@media(max-width:620px){
.grid3,.grid5,.case-grid,.grid2,.guide,.steps{grid-template-columns:1fr}
.hero-split{min-height:520px}
.hero-text{padding-top:88px}
.btn-row .btn{flex:1 1 auto;text-align:center}
}