/* 구조 참고: sidewalkblock.kjipsuri.com (구조·타이포만, 색·문구·이미지 미사용). 컬러는 자체 선정 */
:root{--ink:#1b2430;--muted:#5d6978;--primary:#174c7e;--primary-d:#0f3659;--accent:#c9772a;--bg:#f3f5f7;--card:#fff;--line:#d8dee5;--radius:2px;--container:1200px;--sec:120px;
--font:'Pretendard Variable','Pretendard',-apple-system,'Apple SD Gothic Neo',sans-serif;--label:'Space Grotesk','Pretendard Variable',sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);line-height:1.7;background:#fff;word-break:keep-all;-webkit-text-size-adjust:100%}
img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}
.wrap{max-width:var(--container);margin:0 auto;padding:0 24px}
h1,h2,h3{line-height:1.3;margin:0;letter-spacing:-.02em}
/* header */
#site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
.hd{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-weight:800;font-size:1.25rem;color:var(--primary)}
.site-nav{display:flex;gap:28px;align-items:center;font-size:.95rem;font-weight:600}
.site-nav a:hover{color:var(--primary)}
.nav-cta{background:var(--primary);color:#fff;padding:8px 18px;border-radius:var(--radius)}.nav-cta:hover{color:#fff!important;background:var(--primary-d)}
.nav-btn{display:none;background:none;border:1px solid var(--line);padding:6px 14px;font:inherit;font-weight:600;border-radius:var(--radius)}
/* hero */
.hero{position:relative;color:#fff;background:#1b2430;min-height:560px;display:flex;align-items:flex-end}
.hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.45}
.hero .wrap{position:relative;padding-top:120px;padding-bottom:72px}
.eyebrow{font-family:var(--label);font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;font-weight:700;color:var(--accent)}
.hero .eyebrow{color:#f0b979}
.hero h1{font-size:5rem;font-weight:800;margin:12px 0 16px}
.hero p{max-width:640px;font-size:1.1rem;margin:0 0 28px;color:#e6ebf0}
.btn{display:inline-block;background:var(--accent);color:#fff;font-weight:700;padding:14px 28px;border-radius:var(--radius);border:0;font:inherit;font-weight:700;cursor:pointer}
.btn:hover{background:#a9611f}.btn.ghost{background:transparent;border:1px solid #fff;margin-left:8px}.btn.ghost:hover{background:rgba(255,255,255,.12)}
/* sections */
.sec{padding:var(--sec) 0}.sec.alt{background:var(--bg)}
.sec-h2{font-size:2.1rem;font-weight:800;margin:8px 0 14px}
.sec-sub{color:var(--muted);max-width:720px;margin:0 0 48px}
.center{text-align:center}.center .sec-sub{margin-left:auto;margin-right:auto}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--card);border:1px solid var(--line);padding:32px;border-radius:var(--radius)}
.card h3{font-size:1.2rem;font-weight:800;margin-bottom:10px;color:var(--primary)}.card p{margin:0;color:var(--muted)}
.sv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sv{display:block;background:#fff;border:1px solid var(--line)}.sv img{width:100%;aspect-ratio:4/3;object-fit:cover}
.sv div{padding:20px 22px}.sv h3{font-size:1.15rem;font-weight:800;color:var(--primary)}.sv p{margin:6px 0 0;color:var(--muted);font-size:.92rem}
.sv:hover{border-color:var(--primary)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:s;list-style:none;padding:0;margin:0}
.steps li{counter-increment:s;background:#fff;border:1px solid var(--line);padding:28px}
.steps li{border-top:4px solid var(--accent)}
.steps h3{font-size:1.05rem;font-weight:800;margin-bottom:6px}.steps p{margin:0;color:var(--muted);font-size:.92rem}
/* before/after card */
.ba-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ba-card{display:block;background:var(--card);border:1px solid var(--line);overflow:hidden}
.ba-card.is-hidden{display:none}
.ba-inner{position:relative;display:grid;grid-template-columns:1fr 1fr}
.ba-inner img{width:100%;aspect-ratio:3/4;object-fit:cover}
.ba-label{position:absolute;top:10px;z-index:2;font-family:var(--label);font-size:.66rem;font-weight:700;letter-spacing:.08em;padding:4px 10px;color:#fff}
.ba-label--before{left:10px;background:rgba(27,36,48,.7)}.ba-label--after{right:10px;background:var(--accent)}
.ba-cap{padding:16px 18px;border-top:1px solid var(--line)}.ba-cap h3{font-size:1.02rem;font-weight:800}.ba-cap p{margin:4px 0 0;font-size:.85rem;color:var(--muted)}
.ba-card:hover h3{color:var(--primary)}
.more{text-align:center;margin-top:36px}.more button{background:#fff;border:1px solid var(--ink);padding:12px 36px;font:inherit;font-weight:700;cursor:pointer;border-radius:var(--radius)}
.more button:hover{background:var(--ink);color:#fff}
/* define / table / region */
.def{display:grid;grid-template-columns:.95fr 1.05fr;gap:56px;align-items:start}
.def p{margin:0 0 14px}.def .lead{font-size:1.2rem;font-weight:700;color:var(--primary)}
.tbl{overflow-x:auto;margin:16px 0 8px}
table{border-collapse:collapse;width:100%;min-width:520px;background:#fff;font-size:.95rem}
th,td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}th{background:var(--bg);font-weight:700}
.region{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:20px 0 0}.region li{border:1px solid var(--line);background:#fff;padding:6px 14px;font-size:.92rem}
/* faq */
.faq-list{border-top:1px solid var(--ink)}
.faq{border-bottom:1px solid var(--line)}.faq summary{list-style:none;cursor:pointer;padding:20px 40px 20px 4px;position:relative}
.faq summary::-webkit-details-marker{display:none}.faq summary h3{font-size:1.05rem;font-weight:700;display:inline}
.faq summary:after{content:"+";position:absolute;right:8px;top:16px;font-size:1.5rem;color:var(--primary)}.faq[open] summary:after{content:"\2212"}
.faq p{margin:0;padding:0 4px 22px;color:#38424f}
.fsplit{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px}
/* cta */
.cta{position:relative;background:var(--primary-d);color:#fff;text-align:center;padding:96px 0}
.cta h2{font-size:2rem;font-weight:800;margin-bottom:12px}.cta p{margin:0 0 28px;color:#cfdbe8}
/* sub pages */
.page-hd{background:var(--bg);padding:56px 0 48px;border-bottom:1px solid var(--line)}
.crumb{font-size:.85rem;color:var(--muted);margin-bottom:12px}.crumb a:hover{color:var(--primary)}
.page-hd h1{font-size:2.6rem;font-weight:800}
.answer{font-size:1.12rem;max-width:860px;margin:16px 0 0}
.article{max-width:860px;margin:0 auto;padding:56px 24px}
.article h2{font-size:1.6rem;font-weight:800;margin:48px 0 14px}.article h2:first-child{margin-top:0}
.article p{margin:0 0 16px}.article figure{margin:28px 0}
.article figure img{width:100%;max-height:640px;object-fit:cover}
figcaption{font-size:.85rem;color:var(--muted);margin-top:8px}
.facts{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);margin:0 0 36px}.facts div{padding:14px 18px;border-right:1px solid var(--line)}.facts div:last-child{border:0}
.facts b{display:block;font-size:.75rem;color:var(--muted);font-family:var(--label);letter-spacing:.08em}
.sum{padding-left:20px}.sum li{margin-bottom:6px}
blockquote{margin:28px 0;padding:20px 24px;background:var(--bg);border-left:3px solid var(--accent)}blockquote p{margin:0 0 6px}blockquote cite{font-size:.88rem;color:var(--muted)}
.mod{font-size:.88rem;color:var(--muted);margin-top:32px}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:24px}
.rel-card{background:#fff;border:1px solid var(--line)}.rel-card img{width:100%;aspect-ratio:4/3;object-fit:cover}.rel-card div{padding:16px 18px}.rel-card h3{font-size:1.02rem;font-weight:800}.rel-card p{margin:4px 0 0;font-size:.85rem;color:var(--muted)}.rel-card:hover{border-color:var(--primary)}
.related{background:var(--bg);padding:72px 0}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin:20px 0}
.cta-row .btn.ghost{border-color:var(--primary);color:var(--primary);margin:0}
.sm-list{columns:2}.sm-list li{margin-bottom:6px}
/* footer */
#site-footer{background:#141b24;color:#aab4c0;padding:48px 0;font-size:.88rem}
.ft-links{display:flex;flex-wrap:wrap;gap:8px 20px;margin-bottom:20px;color:#dfe6ee}.ft-links a:hover{color:#fff}
.ft p{margin:0 0 10px}
.floating{position:fixed;right:20px;bottom:20px;z-index:40;background:var(--accent);color:#fff;font-weight:700;padding:14px 22px;border-radius:var(--radius);box-shadow:0 4px 14px rgba(0,0,0,.25)}
@media(max-width:1024px){:root{--sec:80px}.grid3,.sv-grid,.ba-grid,.rel-grid{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:repeat(2,1fr)}.def,.fsplit{grid-template-columns:1fr;gap:28px}}
@media(max-width:720px){:root{--sec:56px}
 .nav-btn{display:block}.site-nav{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:12px 24px 20px;border-bottom:1px solid var(--line);gap:14px}.site-nav.open{display:flex}
 .hero{min-height:480px}.hero h1{font-size:3.4rem}
 .grid3,.sv-grid,.ba-grid,.rel-grid,.steps{grid-template-columns:1fr}.sec-h2{font-size:1.65rem}.page-hd h1{font-size:2rem}.facts{grid-template-columns:1fr}.facts div{border-right:0;border-bottom:1px solid var(--line)}.sm-list{columns:1}
 }

/* v2: section/heading separation, who-grid, buttons */
.sec{border-top:1px solid var(--line)}.sec.alt{border-bottom:1px solid var(--line)}
.sec-head{margin-bottom:44px;padding-bottom:20px;border-bottom:1px solid var(--line);position:relative}
.sec-head:after{content:"";position:absolute;left:0;bottom:-1px;width:72px;height:3px;background:var(--accent)}
.sec-head.center:after{left:50%;transform:translateX(-50%)}
.sec-head .sec-sub{margin:0}
.sec-h2{border-left:0;color:var(--ink)}
.card h3,.who-item h3,.steps h3,.sv h3{padding-left:12px;border-left:3px solid var(--primary)}
.card{transition:box-shadow .2s,transform .2s}.card:hover{box-shadow:0 8px 22px rgba(23,76,126,.12);transform:translateY(-2px)}
.who{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.who-item{background:#fff;border:1px solid var(--line);border-left:4px solid var(--primary);padding:28px;border-radius:var(--radius)}
.who-item h3{font-size:1.15rem;font-weight:800;color:var(--primary);margin-bottom:10px}
.who-item p{margin:0 0 14px;color:var(--muted)}
.tag{display:inline-block;font-size:.8rem;background:var(--bg);border:1px solid var(--line);color:var(--ink);padding:3px 10px;border-radius:99px;margin:0 6px 6px 0}
.sum{list-style:disc}
.btn-row{display:flex;gap:12px;flex-wrap:wrap}.btn-row .btn.ghost{margin:0}
.btn{text-align:center;min-height:48px;line-height:1.3}
@media(max-width:1024px){.who{grid-template-columns:1fr}}
@media(max-width:720px){
 .btn-row,.cta-row{flex-direction:column}.btn-row .btn,.cta-row .btn,.cta .btn{display:block;width:100%;padding:16px 20px;font-size:1.05rem}
 .sec-head{margin-bottom:28px}
 .floating{left:12px;right:12px;bottom:12px;text-align:center;min-height:52px;padding:16px;font-size:1.05rem}
 body{padding-bottom:76px}
}
/* mobile tables */
.tbl{-webkit-overflow-scrolling:touch;border:1px solid var(--line)}.tbl table{width:100%;border-collapse:collapse}
@media(max-width:720px){.tbl table{min-width:520px;font-size:.9rem}.tbl th,.tbl td{padding:10px 12px;vertical-align:top}.tbl:after{content:"좌우로 밀어서 확인하세요";display:block;font-size:.75rem;color:var(--muted);padding:6px 12px;background:var(--bg)}}
@media(max-width:720px){.hero .btn-row{display:none}}
/* v3: sub pages hierarchy & rhythm */
.page-hd{border-bottom:4px solid var(--primary)}
.page-hd h1{letter-spacing:-.03em;line-height:1.25}
.answer{padding-left:16px;border-left:4px solid var(--accent)}
.article section{padding:36px 0;border-top:1px solid var(--line)}
.article section:first-child,.article .facts+section{border-top:0;padding-top:0}
.article h2{margin:0 0 18px;padding-left:14px;border-left:5px solid var(--primary);font-size:1.5rem}
.article h3{font-size:1.1rem;font-weight:700;color:var(--primary)}
.article ul:not(.sum){padding-left:20px}.article ul li{margin-bottom:6px}
.faq summary:hover{background:var(--bg)}.faq summary h3{color:var(--ink);padding:0}
.faq[open] summary{border-bottom:1px dashed var(--line)}.faq p{padding-top:14px}
.related h2{font-size:1.5rem;padding-left:14px;border-left:5px solid var(--primary);margin-bottom:6px}
.rel-card{transition:box-shadow .2s}.rel-card:hover{box-shadow:0 8px 22px rgba(23,76,126,.14)}
@media(max-width:720px){
 .page-hd{padding:36px 0 32px}.page-hd h1{font-size:1.9rem}.answer{font-size:1.02rem}
 .article{padding:36px 18px}.article section{padding:28px 0}.article h2{font-size:1.3rem}
 .faq summary{padding:18px 36px 18px 4px;min-height:48px}
 .related{padding:48px 0}.cta{padding:64px 0}.cta h2{font-size:1.5rem}
 .nav-btn,.site-nav a{min-height:44px}
}
/* v4: mobile pass */
html{scroll-padding-top:72px}body{overflow-wrap:anywhere;overflow-x:hidden}
@media(max-width:720px){
 .wrap{padding:0 18px}
 .hero{min-height:420px}.hero .wrap{padding-top:72px;padding-bottom:40px}
 .hero h1{line-height:1.15}.hero p{font-size:1rem}
 .logo{font-size:1.1rem}.hd{height:56px}.site-nav{top:56px;padding:8px 18px 18px}.site-nav a{display:flex;align-items:center}
 .nav-btn{padding:8px 16px}.nav-cta{justify-content:center}
 .card,.who-item{padding:22px}.steps li{padding:22px}
 .sec-h2{font-size:1.5rem}.sec-sub{font-size:.98rem}
 .more button{width:100%;min-height:48px}
 .ba-cap{padding:14px}
 .tbl{margin-left:-2px}
 .region li{padding:8px 14px}
 #site-footer{padding:36px 0 96px}.ft-links{gap:4px 16px}.ft-links a{padding:6px 0}
 .floating{padding-bottom:calc(16px + env(safe-area-inset-bottom))}
}
/* v5: scheduled posts */
.ba-grid.two{grid-template-columns:repeat(2,1fr)}
.post .story{background:var(--bg);border-left:5px solid var(--accent);padding:28px 28px 20px!important;margin:0 0 8px}
.post .story h2{border-left:0;padding-left:0}.post .note{font-size:.88rem;color:var(--muted);border-top:1px dashed var(--line);padding-top:12px}
.check{list-style:none;padding:0!important}.check li{position:relative;padding:10px 12px 10px 38px;border:1px solid var(--line);background:#fff;margin-bottom:8px!important}
.check li:before{content:"";position:absolute;left:14px;top:17px;width:12px;height:7px;border-left:3px solid var(--accent);border-bottom:3px solid var(--accent);transform:rotate(-45deg)}
.post .who{grid-template-columns:repeat(2,1fr);margin-top:12px}
.post .who-item{padding:20px}
.post blockquote{font-size:1.08rem}
@media(max-width:720px){.ba-grid.two,.post .who{grid-template-columns:1fr}.post .story{padding:22px 18px 14px!important}}