:root{--ink:#1d2a33;--accent:#c9621f;--accent-d:#a84e14;--bg:#fff;--off:#f5f3ee;--border:#e3dfd6;--mute:#5d6870}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Noto Sans KR',-apple-system,BlinkMacSystemFont,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;-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:1280px;margin:0 auto;padding:0 40px}
section{padding:80px 0}
.sec-off{background:var(--off);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
h1,.section-title{font-size:32px;font-weight:800;letter-spacing:-1px;line-height:1.3;margin-bottom:16px}
h2{font-size:26px;font-weight:800;letter-spacing:-.8px;line-height:1.35;margin:44px 0 14px}
h3{font-size:18px;font-weight:700;letter-spacing:-.3px;line-height:1.4}
p{margin-bottom:14px}
.lead{font-size:17px;color:var(--mute);max-width:760px}
.center{text-align:center}.center .lead{margin-left:auto;margin-right:auto}
/* header */
.site-header{background:var(--bg);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:1000}
.header-inner{max-width:1440px;margin:0 auto;padding:0 40px;height:64px;display:flex;align-items:center;justify-content:space-between}
.logo{font-weight:800;font-size:20px;letter-spacing:-.5px;display:flex;align-items:center;gap:10px}
.logo img{width:30px;height:30px}.logo small{font-size:12px;font-weight:500;color:var(--mute)}
.header-nav{display:flex;gap:32px;font-size:14px;font-weight:500}
.header-nav a:hover{color:var(--accent)}
.btn-contact,.btn{display:inline-block;padding:12px 28px;background:var(--ink);color:#fff;font-size:14px;font-weight:600;border-radius:2px;border:0;cursor:pointer;transition:opacity .2s}
.btn-contact{padding:8px 24px;font-size:13px}
.btn:hover,.btn-contact:hover{opacity:.82}.btn.accent{background:var(--accent)}.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--ink)}
.menu-btn{display:none;background:none;border:0;width:36px;height:36px;cursor:pointer}
.menu-btn span{display:block;height:2px;background:var(--ink);margin:6px 8px}
.mobile-nav{display:none;border-top:1px solid var(--border);padding:8px 20px 14px}
.mobile-nav.active{display:block}.mobile-nav a{display:block;padding:10px 0;font-size:15px;border-bottom:1px solid var(--off)}
/* portfolio compare cards */
.portfolio-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:36px 0 40px}
.pcard{display:block;position:relative;border:1px solid var(--border);border-radius:2px;background:#fff;overflow:hidden}
.pcard.hidden{display:none}
.cmp{display:grid;grid-template-columns:1fr 1fr;gap:2px;background:var(--border)}
.cmp figure{position:relative;margin:0;overflow:hidden;aspect-ratio:3/4}
.cmp img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.pcard:hover .cmp img{transform:scale(1.05)}
.cmp figcaption{position:absolute;left:6px;top:6px;background:rgba(29,42,51,.85);color:#fff;font-size:11px;font-weight:700;padding:2px 8px;border-radius:2px}
.pcard-body{padding:14px 16px 18px}.pcard-body h3{font-size:16px;margin-bottom:6px}
.pcard-body p{font-size:13px;color:var(--mute);margin:0}
.tag{display:inline-block;font-size:11px;font-weight:700;color:var(--accent);margin-bottom:6px}
.more-wrap{text-align:center}
/* hero */
.hero{position:relative;min-height:480px;display:flex;align-items:center;padding:0;color:#fff;background:var(--ink)}
.hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.45}
.hero .wrap{position:relative;z-index:1;padding-top:70px;padding-bottom:70px}
.hero-title{font-size:44px;font-weight:800;letter-spacing:-2px;line-height:1.2;max-width:700px;margin-bottom:16px}
.hero p{font-size:17px;max-width:600px;opacity:.9}
.hero .btns{display:flex;gap:12px;margin-top:24px;flex-wrap:wrap}
.hero .btn.ghost{color:#fff;border-color:#fff}
/* grids */
.grid5{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;margin-top:36px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:36px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:28px}
.box{border:1px solid var(--border);border-radius:2px;padding:24px;background:#fff}
.box h3{margin-bottom:8px}.box p{font-size:14px;color:var(--mute);margin:0}
.step-no{font-size:13px;font-weight:800;color:var(--accent);margin-bottom:6px}
.strip{background:var(--ink);color:#fff;padding:36px 0}
.strip ul{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.strip strong{display:block;font-size:20px;font-weight:800}.strip span{font-size:13px;opacity:.7}
/* tables */
.tbl{overflow-x:auto;margin:16px 0 24px}
table{border-collapse:collapse;width:100%;min-width:480px;font-size:14px}
th,td{border:1px solid var(--border);padding:10px 14px;text-align:left}
th{background:var(--off);font-weight:700}
/* faq */
.faq-item{border-bottom:1px solid var(--border)}
.faq-item summary{cursor:pointer;list-style:none;padding:18px 36px 18px 0;position:relative;font-weight:700;font-size:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:6px;top:14px;font-size:22px;color:var(--accent)}
.faq-item[open] summary::after{content:"\2212"}
.faq-item .ans{padding:0 0 18px;color:var(--mute);font-size:15px}
/* cta, footer */
.cta{background:var(--ink);color:#fff;text-align:center}
.cta h2{margin-top:0;color:#fff}.cta p{opacity:.8}
.site-footer{background:#141d24;color:rgba(255,255,255,.55);padding:56px 0 100px;font-size:13px}
.site-footer a:hover{color:#fff}.site-footer .links{display:flex;gap:20px;flex-wrap:wrap;margin-bottom:18px;color:rgba(255,255,255,.8)}
.site-footer p{margin-bottom:4px}
/* article pages */
.crumbs{font-size:13px;color:var(--mute);padding:20px 0 0}.crumbs a:hover{color:var(--accent)}
.article{max-width:820px;margin:0 auto;padding:12px 24px 60px}
.article h1{margin-top:18px}
.answer{background:var(--off);border-left:3px solid var(--accent);padding:18px 22px;margin:18px 0 8px;font-size:16px}
.updated{font-size:13px;color:var(--mute);margin-top:30px}
.fig{margin:22px 0}.fig img{width:100%;max-width:520px;margin:0 auto;border:1px solid var(--border)}
.fig figcaption{font-size:13px;color:var(--mute);text-align:center;margin-top:8px}
.checks li{padding:8px 0 8px 26px;position:relative;border-bottom:1px solid var(--off)}
.checks li::before{content:"";position:absolute;left:4px;top:16px;width:10px;height:6px;border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg)}
.quote{border-left:3px solid var(--ink);padding:6px 0 6px 18px;margin:22px 0;font-size:16px}
.quote cite{display:block;font-size:13px;color:var(--mute);margin-top:6px;font-style:normal}
.kv{display:grid;grid-template-columns:110px 1fr;font-size:14px;border:1px solid var(--border);margin:18px 0}
.kv dt,.kv dd{padding:10px 14px;border-bottom:1px solid var(--border)}.kv dt{background:var(--off);font-weight:700}
.related{background:var(--off);border-top:1px solid var(--border);padding:56px 0}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:20px}
.rel-card{display:block;background:#fff;border:1px solid var(--border);border-radius:2px;overflow:hidden}
.rel-card img{width:100%;aspect-ratio:4/3;object-fit:cover}.rel-card div{padding:14px 16px}.rel-card h3{font-size:16px}.rel-card p{font-size:13px;color:var(--mute);margin:4px 0 0}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin:22px 0}
/* floating */
.floating{position:fixed;right:16px;bottom:16px;z-index:900}
.floating a{display:block;background:var(--accent);color:#fff;font-weight:700;font-size:14px;padding:12px 20px;border-radius:2px;box-shadow:0 4px 14px rgba(0,0,0,.25)}
@media(max-width:1024px){.portfolio-grid,.grid4{grid-template-columns:repeat(3,1fr)}.grid5{grid-template-columns:repeat(3,1fr)}}
@media(max-width:768px){
 .wrap,.header-inner{padding:0 20px}section{padding:52px 0}
 .header-nav,.header-contact{display:none}.menu-btn{display:block}
 h1,.section-title{font-size:26px}h2{font-size:22px}.hero-title{font-size:32px}
 .portfolio-grid{grid-template-columns:1fr}.grid5,.grid4,.grid3,.rel-grid{grid-template-columns:1fr 1fr}.strip ul{grid-template-columns:1fr 1fr}
 .rel-grid{grid-template-columns:1fr}.kv{grid-template-columns:90px 1fr}
}
@media(max-width:480px){.grid5,.grid4,.grid3{grid-template-columns:1fr}}

@media(max-width:640px){table{min-width:0;font-size:13px}th,td{padding:8px 8px;word-break:keep-all}}
/* detail pages */
.pgrid{grid-template-columns:repeat(var(--n,2),1fr);margin:20px 0 28px}
.blk{margin:30px 0}
@media(max-width:1024px){.pgrid{grid-template-columns:repeat(var(--n,2),1fr)}}
@media(max-width:640px){.pgrid{grid-template-columns:1fr}}
/* detail pages v2: 메인과 같은 밴드형 섹션 */
.dpage{counter-reset:sec}
.dpage section{padding:0}
.dhero{padding:56px 0 64px;border-top:0}
.dhero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.dhero .crumbs{padding:0 0 14px}
.dhero h1{font-size:44px;letter-spacing:-2px;margin:0 0 20px}
.dhero .answer{background:#fff;font-size:16px;margin:0 0 22px;border:1px solid var(--border);border-left:4px solid var(--accent)}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:0 0 6px}
.facts li{background:#fff;border:1px solid var(--border);border-radius:2px;padding:12px 14px}
.facts span{display:block;font-size:12px;color:var(--mute);font-weight:500}.facts strong{display:block;font-size:15px;font-weight:800;margin-top:2px}
.dhero-img img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:2px;border:1px solid var(--border)}
.dhero-img figcaption,.dfig figcaption{font-size:13px;color:var(--mute);margin-top:8px;text-align:center}
.dsec{padding:72px 0!important}
.dsec.sec-off{border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.dwrap{max-width:1080px;margin:0 auto;padding:0 40px}
.eyebrow{display:block;font-size:13px;font-weight:800;letter-spacing:1.5px;color:var(--accent);margin-bottom:8px}
.dsec{counter-increment:sec}
.dsec .eyebrow::before{content:"POINT " counter(sec,decimal-leading-zero)}
#faq .eyebrow::before{content:"FAQ"}
.dsec h2{font-size:30px;margin:0 0 22px;padding-bottom:16px;position:relative;line-height:1.35}
.dsec h2::after{content:"";position:absolute;left:0;bottom:0;width:44px;height:3px;background:var(--accent)}
.dsec p{font-size:16px;max-width:760px}
.dsplit{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.dsplit.rev .dfig{order:-1}
.dfig{margin:0}.dfig img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:2px;border:1px solid var(--border)}
.dpics{display:grid;grid-template-columns:repeat(var(--n,2),1fr);gap:16px;margin-top:32px}
.subs{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:24px 0 8px}
.sub{background:#fff;border:1px solid var(--border);border-top:3px solid var(--accent);border-radius:2px;padding:22px}
.sec-off .sub{background:#fff}
.sub h3{font-size:17px;margin-bottom:10px;padding-bottom:10px;border-bottom:1px solid var(--off)}
.sub p{font-size:15px;color:var(--mute);margin:0}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:24px 0 8px;counter-reset:none}
.steps li{background:#fff;border:1px solid var(--border);border-radius:2px;padding:20px}
.steps h3{font-size:16px;margin-bottom:6px}.steps p{font-size:14px;color:var(--mute);margin:0}
.dchecks{background:#fff;border:1px solid var(--border);border-radius:2px;padding:8px 22px;margin:20px 0 4px;max-width:760px}
.dchecks li:last-child{border-bottom:0}
.dtbl{margin:22px 0 4px;border:1px solid var(--border);background:#fff}
.dtbl table{margin:0}.dtbl th{background:var(--ink);color:#fff;border-color:var(--ink)}
.dtbl tbody tr:nth-child(even) td{background:var(--off)}
.dsec .pgrid{margin:32px 0 0}
.dquote{background:var(--ink);color:#fff;padding:56px 0!important}
.dquote blockquote{font-size:22px;font-weight:700;line-height:1.6;letter-spacing:-.5px;text-align:center;max-width:760px;margin:0 auto;position:relative;padding-top:34px}
.dquote blockquote::before{content:"\201C";position:absolute;top:-14px;left:50%;transform:translateX(-50%);font-size:64px;color:var(--accent);line-height:1}
.dquote cite{display:block;font-size:14px;font-weight:500;opacity:.7;margin-top:14px;font-style:normal}
.dpage .cta{padding:72px 0}
@media(max-width:1024px){.dhero-grid,.dsplit{grid-template-columns:1fr;gap:28px}.dsplit.rev .dfig{order:0}.steps{grid-template-columns:1fr 1fr}.dhero-img img{aspect-ratio:3/2}}
@media(max-width:768px){
 .dhero{padding:32px 0 40px}.dhero h1{font-size:32px}.facts{grid-template-columns:1fr}
 .dsec{padding:48px 0!important}.dwrap{padding:0 20px}.dsec h2{font-size:24px}
 .subs,.steps{grid-template-columns:1fr}.dpics{grid-template-columns:1fr 1fr}
 .dpics[style*="--n:1"]{grid-template-columns:1fr}
 .dquote{padding:40px 0!important}.dquote blockquote{font-size:18px}
 .dfig img{aspect-ratio:4/3}
}
.steps{list-style:none;padding:0}