:root{--ink:#22302B;--mut:#5E6A64;--bg:#F6F4EF;--card:#fff;--line:#E4DFD5;--pri:#2F4A3F;--pri-d:#223830;--acc:#B98B5E;--soft:#ECE7DC;--r:0;--rf:0;--w:1120px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Pretendard',-apple-system,'Apple SD Gothic Neo',ui-sans-serif,system-ui,sans-serif;background:var(--bg);color:var(--ink);line-height:1.7;word-break:keep-all}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-weight:800;letter-spacing:-.03em;line-height:1.3;margin:0}
.wrap{max-width:var(--w);margin:0 auto;padding:0 20px}
section{padding:64px 0}
.sec-h2{font-size:clamp(24px,3.4vw,34px);margin-bottom:10px}
.sec-sub{color:var(--mut);margin:0 0 32px}
/* header */
#site-header{height:72px;background:rgba(246,244,239,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;backdrop-filter:blur(8px)}
#site-header .wrap{height:72px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{font-weight:800;font-size:19px;letter-spacing:-.03em;color:var(--pri)}
.site-nav{display:flex;gap:6px;align-items:center}
.site-nav a{padding:8px 14px;border-radius:0;font-size:15px;font-weight:600;color:var(--mut)}
.site-nav a:hover{background:var(--soft);color:var(--ink)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:12px 24px;border-radius:0;font-weight:700;background:var(--pri);color:#fff;border:0;cursor:pointer;font-size:16px;font-family:inherit}
.btn:hover{background:var(--pri-d)}
.btn.ghost{background:transparent;color:var(--pri);border:1.5px solid var(--pri)}
.btn.ghost:hover{background:var(--pri);color:#fff}
.site-nav .btn{padding:9px 20px;color:#fff;font-size:15px}
@media(max-width:820px){.site-nav a.hide-m{display:none}}
/* intro (case-first pattern) */
.intro{padding:44px 0 8px}
.eyebrow{display:inline-block;padding:5px 14px;border-radius:0;background:var(--soft);color:var(--pri);font-weight:700;font-size:13px;margin-bottom:14px}
.intro h1{font-size:clamp(32px,5.4vw,54px);margin-bottom:14px}
.lead{font-size:18px;color:var(--mut);max-width:760px;margin:0 0 8px}
/* case cards */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media(max-width:900px){.case-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.case-grid{grid-template-columns:1fr}}
.case-card{background:var(--card);border:1px solid var(--line);border-radius:0;overflow:hidden;display:block;transition:box-shadow .2s,transform .2s}
.case-card:hover{box-shadow:0 10px 28px rgba(34,48,43,.12);transform:translateY(-2px)}
.cmp{display:grid;grid-template-columns:1fr 1fr;gap:2px;background:var(--line)}
.cmp figure{margin:0;position:relative;aspect-ratio:3/4;background:var(--soft)}
.cmp img{width:100%;height:100%;object-fit:cover}
.cmp figcaption{position:absolute;left:8px;top:8px;background:rgba(34,48,43,.82);color:#fff;font-size:12px;font-weight:700;padding:3px 10px;border-radius:0}
.case-body{padding:16px 18px 20px}
.case-body h3{font-size:17px;margin-bottom:6px}
.case-meta{margin:0;color:var(--mut);font-size:14px}
.case-card[hidden]{display:none}
.more-wrap{text-align:center;margin-top:30px}
/* brand definition */
.def{background:var(--card);border-block:1px solid var(--line)}
.def h2{font-size:clamp(24px,3.4vw,34px);margin-bottom:12px}
.def .first{font-size:19px;font-weight:600;margin:0 0 18px}
.def p{margin:0 0 14px;max-width:820px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media(max-width:820px){.grid3,.grid2{grid-template-columns:1fr}}
.box{background:var(--card);border:1px solid var(--line);border-radius:0;padding:24px}
.box h3{font-size:18px;margin-bottom:8px}
.box p{margin:0;color:var(--mut)}
/* services */
.svc{overflow:hidden;padding:0;display:block;transition:box-shadow .2s}
.svc:hover{box-shadow:0 10px 28px rgba(34,48,43,.12)}
.svc img{width:100%;aspect-ratio:4/3;object-fit:cover}
.svc div{padding:18px 20px 22px}
.svc h3{font-size:18px;margin-bottom:4px}
.svc p{margin:0;color:var(--mut);font-size:15px}
/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;list-style:none;margin:0;padding:0}
@media(max-width:820px){.steps{grid-template-columns:1fr 1fr}}
.steps li{background:var(--card);border:1px solid var(--line);border-top:4px solid var(--acc);border-radius:0;padding:20px}
.steps b{display:block;margin-bottom:4px}
.steps span{color:var(--mut);font-size:14px}
/* areas */
.chips{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0;padding:0}
.chips li{padding:7px 16px;border-radius:0;background:var(--card);border:1px solid var(--line);font-weight:600;font-size:15px}
/* tables */
.tbl{overflow-x:auto;margin:16px 0}
table{border-collapse:collapse;width:100%;background:var(--card)}
th,td{border:1px solid var(--line);padding:11px 14px;text-align:left;font-size:15px;vertical-align:top}
th{background:var(--soft)}
/* faq */
.faq details{background:var(--card);border:1px solid var(--line);border-radius:0;margin-bottom:10px}
.faq summary{cursor:pointer;padding:16px 20px;list-style:none;display:flex;justify-content:space-between;gap:12px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:'+';font-size:22px;font-weight:700;color:var(--pri);flex:none}
.faq details[open] summary:after{content:'\2212'}
.faq summary h3{font-size:17px;font-weight:700}
.faq p{margin:0;padding:0 20px 18px;color:var(--mut)}
/* cta */
.cta{background:var(--pri);color:#fff;text-align:center;border-radius:0;padding:48px 24px}
.cta h2{font-size:clamp(22px,3vw,30px);margin-bottom:10px}
.cta p{margin:0 0 22px;opacity:.88}
.cta .btn{background:#fff;color:var(--pri)}
.cta .btn:hover{background:var(--soft)}
/* article pages */
.crumb{font-size:14px;color:var(--mut);padding-top:24px}
.crumb a:hover{text-decoration:underline}
.art{padding:24px 0 56px}
.art h1{font-size:clamp(28px,4.6vw,44px);margin:12px 0 18px}
.art h2{font-size:clamp(21px,2.8vw,27px);margin:44px 0 12px}
.art p{margin:0 0 16px}
.art ul{padding-left:22px;margin:0 0 16px}
.art li{margin-bottom:6px}
.answer{background:var(--card);border-left:4px solid var(--acc);border-radius:0;padding:18px 22px;font-size:18px;font-weight:600;margin-bottom:28px}
.art-wrap{max-width:820px;margin:0 auto;padding:0 20px}
.photo{margin:22px 0}
.photo img{border-radius:0;width:100%;max-width:560px;margin:0 auto}
.photo.land img{max-width:760px}
.photo figcaption{text-align:center;color:var(--mut);font-size:14px;margin-top:8px}
.pair{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:22px 0}
.pair figure{margin:0}
.pair img{border-radius:0;width:100%}
.pair figcaption{text-align:center;color:var(--mut);font-size:14px;margin-top:6px}
.quote{background:var(--soft);border-radius:0;padding:20px 24px;margin:28px 0}
.quote p{margin:0 0 8px;font-weight:600}
.quote cite{color:var(--mut);font-size:14px;font-style:normal}
.facts{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:0 0 24px}
@media(max-width:560px){.facts{grid-template-columns:1fr}}
.facts div{background:var(--card);border:1px solid var(--line);border-radius:0;padding:12px 16px;font-size:15px}
.facts b{display:block;color:var(--mut);font-size:13px;font-weight:600}
.mod{color:var(--mut);font-size:14px;margin-top:36px}
.related{padding:40px 0 64px}
.related .case-card .case-body h3{font-size:16px}
.rel-img{aspect-ratio:4/3;overflow:hidden;background:var(--soft)}
.rel-img img{width:100%;height:100%;object-fit:cover}
.sms-steps{list-style:none;padding:0;margin:0 0 16px}
.sms-steps li{background:var(--card);border:1px solid var(--line);border-left:4px solid var(--acc);border-radius:0;padding:16px 20px;margin-bottom:10px}
.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin:20px 0}
/* footer */
#site-footer{background:var(--pri-d);color:#cfd8d3;padding:44px 0 90px;font-size:14px}
#site-footer a:hover{color:#fff;text-decoration:underline}
#site-footer .links{display:flex;flex-wrap:wrap;gap:6px 18px;margin-bottom:18px;font-weight:600}
#site-footer p{margin:0 0 6px}
.floating{position:fixed;right:16px;bottom:16px;z-index:60}
.floating a{box-shadow:0 8px 22px rgba(0,0,0,.25)}

/* ---- 디자인 개선 ---- */
body{font-size:16.5px}
section{padding:72px 0}
section.alt{background:#fff;border-block:1px solid var(--line)}
.sec-head{margin-bottom:30px}
.sec-head .label{display:inline-block;color:var(--acc);font-weight:800;font-size:13px;letter-spacing:.06em;margin-bottom:8px}
.sec-head .sec-h2{margin-bottom:10px}
.sec-head .sec-h2:after{content:'';display:block;width:44px;height:4px;border-radius:0;background:var(--acc);margin-top:14px}
.sec-head .sec-sub{margin:0;max-width:720px}
.box.pain{display:flex;flex-direction:column;gap:6px;transition:box-shadow .2s,transform .2s,border-color .2s}
.box.pain:hover{box-shadow:0 10px 28px rgba(34,48,43,.12);transform:translateY(-2px);border-color:var(--acc)}
.box.pain h3{font-size:18px;margin-bottom:2px}
.box.pain .more{margin-top:auto;padding-top:10px;color:var(--pri);font-weight:700;font-size:14px}
.box.pain .more:after{content:' \2192'}
.note{margin:28px 0 0;color:var(--mut);font-size:14.5px}
.intro{padding:52px 0 16px}
.intro .lead{font-size:17.5px}
.case-card{border-radius:0}
.case-body{padding:16px 18px 22px}
.case-body h3{font-size:17px;line-height:1.4}
.btn{min-height:48px;transition:background .2s,transform .1s}
.btn:active{transform:scale(.98)}
/* 본문 헤딩 구분 */
.art section{padding:0;margin-top:44px;border-top:1px solid var(--line);padding-top:36px}
.art section:first-of-type{border-top:0;margin-top:20px;padding-top:0}
.art h2{margin:0 0 14px;padding-left:14px;border-left:5px solid var(--acc);font-size:clamp(21px,2.8vw,26px)}
.art h3{margin:20px 0 8px}
.tbl{border-radius:0;border:1px solid var(--line)}
.tbl table{border:0}
th,td{border-left:0;border-right:0}
.faq summary{min-height:56px}
.faq summary:hover{background:var(--soft);border-radius:0}
@media(max-width:640px){
 body{font-size:16px}
 section{padding:52px 0}
 .wrap,.art-wrap{padding:0 16px}
 .intro{padding:34px 0 8px}
 .site-nav .btn{padding:8px 16px;min-height:40px;font-size:14px}
 .logo{font-size:17px}
 /* 버튼: 모바일 꽉 찬 폭, 터치 영역 확대 */
 .btn{width:100%;min-height:52px;font-size:17px}
 .site-nav .btn{width:auto}
 .btn-row{flex-direction:column;gap:10px}
 .cta{padding:36px 20px;border-radius:0}
 .more-wrap .btn{width:100%}
 .grid3,.grid2{gap:12px}
 .box{padding:20px}
 .steps{grid-template-columns:1fr}
 .pair{grid-template-columns:1fr}
 .floating{left:0;right:0;bottom:0;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:rgba(246,244,239,.96);border-top:1px solid var(--line)}
 .floating a{display:flex;box-shadow:none}
 #site-footer{padding-bottom:110px}
 .faq summary{padding:14px 16px}
 .faq summary h3{font-size:16px}
 .case-grid{gap:16px}
}

/* 표 모바일 최적화: 좁은 화면에서 줄바꿈으로 맞추고, 넘치면 가로 스크롤 */
.tbl{-webkit-overflow-scrolling:touch}
@media(max-width:640px){
 th,td{padding:10px 10px;font-size:14px;line-height:1.5;min-width:84px;word-break:keep-all}
 table{min-width:0}
}

.chips li a{display:block;margin:-7px -16px;padding:7px 16px}
.chips li:hover{border-color:var(--acc);background:var(--soft)}