:root{
  --white:#ffffff;
  --offwhite:#F5F6F1;
  --black:#0B0D0A;
  --charcoal:#181B14;
  --gray:#6B7280;
  --line:#E4E4E0;
  --lime:#F5B400;
  --lime-dark:#B98600;
}
*{box-sizing:border-box;}
body{font-family:"Pretendard",-apple-system,sans-serif;color:var(--black);background:var(--white);margin:0;word-break:keep-all;overflow-wrap:break-word;}
h1,h2,h3{font-weight:800;line-height:1.25;margin:0 0 12px;}
p{margin:0 0 14px;line-height:1.7;color:#333;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px;}
.num{font-size:.78rem;letter-spacing:.14em;color:var(--lime-dark);font-weight:800;text-transform:uppercase;}
section{padding:64px 0;}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;}
.brand{font-weight:800;font-size:1.15rem;letter-spacing:-.02em;}
.brand span{color:var(--lime-dark);}
.header-right{display:flex;align-items:center;gap:20px;}
.site-nav{display:flex;gap:18px;font-weight:600;font-size:.92rem;}
.header-call{display:flex;align-items:center;gap:6px;background:var(--black);color:var(--white);padding:10px 16px;font-weight:700;font-size:.88rem;}
.header-call svg{width:16px;height:16px;}
@media(max-width:640px){.site-nav{display:none;}}

/* hero split before/after */
.hero-split{position:relative;background:var(--black);color:var(--white);}
.hero-ba{display:grid;grid-template-columns:1fr 1fr;min-height:420px;}
.hero-ba-side{position:relative;overflow:hidden;}
.hero-ba-side img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.hero-ba-side::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.7),rgba(0,0,0,.15) 55%);}
.hero-ba-label{position:absolute;top:16px;left:16px;z-index:2;font-size:.72rem;font-weight:800;letter-spacing:.1em;color:var(--white);background:rgba(0,0,0,.55);padding:5px 11px;}
.hero-ba-side.after .hero-ba-label{background:var(--lime);color:var(--black);}
.hero-text{position:relative;z-index:2;padding:48px 20px 40px;max-width:1200px;margin:0 auto;}
.hero-eyebrow{font-size:.8rem;letter-spacing:.16em;color:var(--lime);font-weight:800;text-transform:uppercase;}
.hero-text h1{font-size:clamp(2.1rem,5vw,3.6rem);margin:10px 0 16px;color:var(--white);}
.hero-text .lead{font-size:1.05rem;color:#D8DBD3;max-width:62ch;margin-bottom:20px;}
.breadcrumb{font-size:.82rem;color:#B7BBAE;margin-bottom:14px;}
.breadcrumb a{color:var(--lime);}
.call-btn{display:inline-flex;align-items:center;gap:8px;background:var(--lime);color:var(--black);font-weight:800;padding:14px 26px;font-size:.95rem;}
.call-btn svg{width:18px;height:18px;}

/* sub-page hero (no split, dark band) */
.page-hero{background:var(--black);color:var(--white);padding:52px 0 44px;}
.page-hero h1{color:var(--white);font-size:clamp(1.9rem,4.4vw,2.8rem);}
.page-hero .lead{color:#D8DBD3;max-width:64ch;}

/* field point bar */
.field-points{background:var(--white);border-bottom:1px solid var(--line);}
.field-points .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.field-point{padding:28px 22px;border-left:1px solid var(--line);}
.field-point:first-child{border-left:none;}
.field-point .fp-num{font-size:1.6rem;font-weight:800;color:var(--lime-dark);}
.field-point .fp-label{font-size:.72rem;letter-spacing:.1em;font-weight:800;color:var(--gray);text-transform:uppercase;margin:4px 0 8px;}
.field-point p{font-size:.88rem;margin:0;color:#333;}
@media(max-width:800px){.field-points .wrap{grid-template-columns:1fr 1fr;}.field-point{border-left:none;border-top:1px solid var(--line);}}

/* section head */
.section-head{margin-bottom:32px;}
.section-head h2{font-size:clamp(1.5rem,3vw,2.1rem);}
.section-head p{color:var(--gray);max-width:64ch;}

/* NSEO service cards - rectangular */
.nseo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;background:var(--line);}
.nseo-card{background:var(--white);display:block;position:relative;}
.nseo-photo{aspect-ratio:4/3;overflow:hidden;position:relative;}
.nseo-photo img{width:100%;height:100%;object-fit:cover;transition:transform .3s;}
.nseo-card:hover .nseo-photo img{transform:scale(1.03);}
.nseo-num{position:absolute;top:10px;left:10px;background:var(--lime);color:var(--black);font-weight:800;font-size:.8rem;padding:3px 9px;z-index:2;}
.nseo-body{padding:18px 20px 22px;}
.nseo-body h3{font-size:1.05rem;margin:0 0 6px;}
.nseo-body p{font-size:.86rem;color:var(--gray);margin:0 0 10px;}
.nseo-arrow{font-size:.82rem;font-weight:800;color:var(--lime-dark);}
@media(max-width:900px){.nseo-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:520px){.nseo-grid{grid-template-columns:1fr;}}

/* generic service grid (region cross-links etc.) */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;background:var(--line);}
.service-card{background:var(--white);display:block;}
.service-photo{aspect-ratio:4/3;overflow:hidden;}
.service-photo img{width:100%;height:100%;object-fit:cover;}
.service-body{padding:16px 18px 20px;}
.service-body h3{font-size:1rem;margin:0 0 6px;}
.service-arrow{font-size:.8rem;font-weight:800;color:var(--lime-dark);}
@media(max-width:900px){.service-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:520px){.service-grid{grid-template-columns:1fr;}}

/* split content block */
.content-block{border-top:1px solid var(--line);}
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;}
.split-photo img{aspect-ratio:4/3;object-fit:cover;width:100%;}
@media(max-width:800px){.split{grid-template-columns:1fr;gap:20px;}}

/* before/after case */
.ba-case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.ba-case{border:1px solid var(--line);}
.ba-case-label{padding:12px 16px;font-weight:800;font-size:.85rem;border-bottom:1px solid var(--line);background:var(--offwhite);}
.ba-case-photos{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);}
.ba-photo{position:relative;aspect-ratio:3/4;overflow:hidden;}
.ba-photo img{width:100%;height:100%;object-fit:cover;}
.ba-photo figcaption{position:absolute;top:8px;left:8px;font-size:.68rem;font-weight:800;letter-spacing:.06em;color:#fff;background:rgba(0,0,0,.6);padding:3px 8px;}
.ba-photo.after figcaption{background:var(--lime);color:var(--black);}
figure{margin:0;}
@media(max-width:900px){.ba-case-grid{grid-template-columns:1fr;}}

/* before/after full-size (matches split-photo size) */
.ba-full{display:grid;grid-template-columns:1fr 1fr;gap:40px;}
.ba-full .ba-photo{aspect-ratio:4/3;}
@media(max-width:800px){.ba-full{grid-template-columns:1fr;gap:20px;}}

/* why */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;}
.why-item .why-num{font-size:2rem;font-weight:800;color:var(--lime-dark);}
.why-item h3{font-size:1.05rem;margin:6px 0 8px;}
.why-item p{font-size:.9rem;color:var(--gray);}
@media(max-width:800px){.why-grid{grid-template-columns:1fr;gap:24px;}}

/* process - black band */
.process-band{background:var(--black);color:var(--white);}
.process-band h2{color:var(--white);}
.process-band .section-head p{color:#B7BBAE;}
.process-list{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.process-step{padding:0 22px;position:relative;}
.process-step + .process-step{border-left:1px dashed #3A3F31;}
.process-step .pnum{font-size:2rem;font-weight:800;color:var(--lime);}
.process-step h3{color:var(--white);font-size:1.02rem;margin:8px 0 8px;}
.process-step p{color:#B7BBAE;font-size:.86rem;}
@media(max-width:900px){.process-list{grid-template-columns:1fr 1fr;gap:28px 0;}.process-step + .process-step{border-left:none;}}
@media(max-width:520px){.process-list{grid-template-columns:1fr;}}

/* info table */
table.info-table{width:100%;border-collapse:collapse;}
table.info-table th,table.info-table td{border:1px solid var(--line);padding:14px 16px;text-align:left;font-size:.92rem;}
table.info-table th{background:var(--offwhite);font-weight:800;width:30%;}
@media(max-width:700px){table.info-table{display:block;overflow-x:auto;}}

/* checklist */
.checklist{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:10px 24px;}
.checklist li{display:flex;align-items:flex-start;gap:10px;font-size:.92rem;padding:10px 0;border-bottom:1px solid var(--line);}
.checklist li::before{content:"";width:16px;height:16px;flex:none;margin-top:3px;border:2px solid var(--lime-dark);}
@media(max-width:700px){.checklist{grid-template-columns:1fr;}}

/* faq */
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{width:100%;text-align:left;background:none;border:none;padding:20px 0;font-size:1.02rem;font-weight:700;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-family:inherit;color:inherit;}
.faq-plus{font-size:1.3rem;color:var(--lime-dark);transition:transform .2s;flex:none;margin-left:12px;}
.faq-item.open .faq-plus{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;font-size:.92rem;color:var(--gray);line-height:1.7;}
.faq-item.open .faq-a{max-height:500px;}
.faq-a p{margin:0 0 18px;}

/* check-list (ordered flow, used on detail pages) */
.check-list{padding-left:0;list-style:none;display:flex;flex-direction:column;gap:10px;}
.check-list li{padding-left:22px;position:relative;}
.check-list li::before{content:"";position:absolute;left:0;top:9px;width:10px;height:10px;background:var(--lime);}

/* cta */
.cta{background:var(--charcoal);color:var(--white);text-align:center;}
.cta h2{color:var(--white);}
.cta p{color:#C7CABE;}

/* footer */
.site-footer{background:var(--black);color:#A9AD9E;padding:48px 0 20px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr;gap:32px;margin-bottom:28px;}
.footer-brand{color:var(--white);font-weight:800;font-size:1.1rem;margin-bottom:10px;}
.footer-info p{margin:2px 0;font-size:.85rem;color:#A9AD9E;}
.footer-links h4,.footer-nseo h4{color:var(--white);font-size:.8rem;letter-spacing:.06em;margin-bottom:12px;}
.footer-links a,.footer-nseo a{display:block;font-size:.85rem;color:#A9AD9E;padding:3px 0;}
.footer-bottom{border-top:1px solid #24261E;padding-top:18px;font-size:.76rem;color:#71755F;}
@media(max-width:800px){.footer-grid{grid-template-columns:1fr;gap:20px;}}

/* fixed call button (mobile) */
.mobile-call-fixed{display:none;}
@media(max-width:768px){
  .mobile-call-fixed{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:60;background:var(--lime);color:var(--black);align-items:center;justify-content:center;gap:6px;padding:9px;font-weight:800;font-size:.8rem;}
  .mobile-call-fixed svg{width:14px;height:14px;flex:none;}
}
.side-call-fixed{display:none;}
@media(min-width:769px){
  .side-call-fixed{display:flex;position:fixed;right:24px;bottom:24px;z-index:60;background:var(--black);color:var(--white);align-items:center;gap:6px;padding:10px 14px;font-weight:800;font-size:.8rem;box-shadow:0 6px 18px rgba(0,0,0,.25);}
  .side-call-fixed svg{width:14px;height:14px;flex:none;}
}

/* related / other services carousel */
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:2px;background:var(--line);}
@media(max-width:900px){.related-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:520px){.related-grid{grid-template-columns:1fr;}}