/* ============================================================
   1급열쇠 — 전체 사이트 스타일
   색상만 바꾸고 싶으면 아래 :root 의 값을 고치세요
   ============================================================ */
:root{
  --brand: #1a4fd6;
  --brand-dark: #12369a;
  --accent: #ff8a00;
  --ink: #1b1d21;
  --ink-2: #4b5158;
  --ink-3: #7c848d;
  --line: #e6e9ee;
  --bg: #ffffff;
  --bg-2: #f6f8fb;
  --radius: 12px;
  --max: 1180px;
  --font: "Pretendard","Apple SD Gothic Neo","Malgun Gothic",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);
     font-size:16px;line-height:1.75;word-break:keep-all;overflow-wrap:break-word}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--max);margin:0 auto;padding:0 18px}

/* ---------- 헤더 ---------- */
.site-header{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:18px;height:64px}
.logo{display:flex;align-items:center;gap:9px;font-weight:800;font-size:21px;letter-spacing:-.02em;color:var(--ink);flex:0 0 auto}
.logo:hover{text-decoration:none}
.logo .mark{width:30px;height:30px;flex:0 0 auto}
.logo .a{color:var(--brand)}
.logo .b{color:var(--ink)}
.logo .tag{font-size:11px;font-weight:600;color:var(--ink-3);letter-spacing:0;display:block;line-height:1.2}

nav.main{margin-left:auto;display:flex;align-items:center;gap:2px}
nav.main > ul{display:flex;list-style:none;margin:0;padding:0;gap:2px}
nav.main li{position:relative}
nav.main > ul > li > a{display:block;padding:10px 14px;font-weight:600;font-size:15.5px;color:var(--ink);border-radius:8px}
nav.main > ul > li > a:hover{background:var(--bg-2);text-decoration:none;color:var(--brand)}
nav.main > ul > li > a::after{content:"";display:inline-block;width:6px;height:6px;margin-left:6px;vertical-align:2px;
  border-right:1.6px solid var(--ink-3);border-bottom:1.6px solid var(--ink-3);transform:rotate(45deg)}
.submenu{position:absolute;top:100%;left:0;min-width:190px;background:#fff;border:1px solid var(--line);
  border-radius:10px;box-shadow:0 10px 28px rgba(20,30,50,.12);padding:6px;list-style:none;margin:6px 0 0;
  opacity:0;visibility:hidden;transform:translateY(-6px);transition:.16s}
nav.main li:hover > .submenu, nav.main li:focus-within > .submenu{opacity:1;visibility:visible;transform:none}
.submenu a{display:block;padding:9px 12px;border-radius:7px;font-size:14.5px;color:var(--ink-2)}
.submenu a:hover{background:var(--bg-2);color:var(--brand);text-decoration:none}

.head-call{flex:0 0 auto;display:inline-flex;align-items:center;gap:7px;background:var(--brand);color:#fff;
  font-weight:800;padding:9px 15px;border-radius:999px;font-size:15px;margin-left:14px}
.head-call:hover{background:var(--brand-dark);text-decoration:none;color:#fff}
.burger{display:none;margin-left:auto;background:none;border:0;padding:8px;cursor:pointer}
.burger span{display:block;width:22px;height:2px;background:var(--ink);margin:5px 0;border-radius:2px}

/* ---------- 히어로 ---------- */
.hero{background:linear-gradient(160deg,var(--brand) 0%,var(--brand-dark) 100%);color:#fff;padding:56px 0 48px}
.hero h1{margin:0 0 14px;font-size:38px;line-height:1.28;letter-spacing:-.03em;font-weight:800}
.hero h1 em{font-style:normal;color:#ffd36b}
.hero p{margin:0 0 26px;font-size:17px;color:rgba(255,255,255,.9);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:10px}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:800;padding:14px 24px;border-radius:999px;font-size:17px}
.btn-call{background:#fff;color:var(--brand)}
.btn-call:hover{background:#f0f3ff;text-decoration:none}
.btn-ghost{border:1.5px solid rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);text-decoration:none}
.hero-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.hero-badges span{font-size:13.5px;background:rgba(255,255,255,.15);padding:6px 13px;border-radius:999px}

/* ---------- 섹션 ---------- */
section.block{padding:52px 0}
section.block.alt{background:var(--bg-2)}
.sec-head{text-align:center;margin-bottom:32px}
.sec-head h2{margin:0 0 8px;font-size:27px;letter-spacing:-.02em}
.sec-head p{margin:0;color:var(--ink-3);font-size:15.5px}

.svc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px}
.svc-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 20px;transition:.16s}
.svc-card:hover{border-color:var(--brand);box-shadow:0 8px 24px rgba(26,79,214,.09);text-decoration:none;transform:translateY(-2px)}
.svc-card h3{margin:0 0 7px;font-size:17.5px;color:var(--ink)}
.svc-card p{margin:0;font-size:14.5px;color:var(--ink-3);line-height:1.65}
.svc-card .ico{font-size:26px;margin-bottom:10px;display:block}

.step-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;counter-reset:s}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 20px;position:relative}
.step::before{counter-increment:s;content:counter(s);display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:50%;background:var(--brand);color:#fff;font-weight:800;font-size:15px;margin-bottom:11px}
.step h3{margin:0 0 6px;font-size:16.5px}
.step p{margin:0;font-size:14.5px;color:var(--ink-3)}

/* 지역 목록 */
.region-groups{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px}
.region-group h3{margin:0 0 10px;font-size:16px;color:var(--brand);border-bottom:2px solid var(--line);padding-bottom:7px}
.region-links{display:flex;flex-wrap:wrap;gap:6px}
.region-links a{font-size:13.5px;background:#fff;border:1px solid var(--line);padding:5px 11px;border-radius:999px;color:var(--ink-2)}
.region-links a:hover{background:var(--brand);color:#fff;border-color:var(--brand);text-decoration:none}

/* ---------- 목록 페이지 ---------- */
.page-head{padding:34px 0 22px;border-bottom:1px solid var(--line)}
.page-head h1{margin:0 0 8px;font-size:30px;letter-spacing:-.02em}
.page-head p{margin:0;color:var(--ink-3);font-size:15.5px}
.crumb{font-size:13.5px;color:var(--ink-3);margin-bottom:12px}
.crumb a{color:var(--ink-3)}

.post-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(238px,1fr));gap:24px 20px;padding:32px 0}
.post-card{display:block;color:inherit}
.post-card:hover{text-decoration:none}
.post-card .thumb{aspect-ratio:16/10;border-radius:10px;overflow:hidden;background:var(--bg-2);margin-bottom:11px}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:.25s}
.post-card:hover .thumb img{transform:scale(1.04)}
.post-card h3{margin:0 0 5px;font-size:15.5px;line-height:1.5;font-weight:600}
.post-card:hover h3{color:var(--brand)}
.post-card time{font-size:13px;color:var(--ink-3)}

.pager{display:flex;justify-content:center;gap:6px;flex-wrap:wrap;padding:10px 0 46px}
.pager a,.pager span{min-width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:8px;font-size:14.5px;color:var(--ink-2);padding:0 10px}
.pager .cur{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:700}
.pager a:hover{border-color:var(--brand);color:var(--brand);text-decoration:none}

/* ---------- 글 페이지 ---------- */
.article-layout{display:grid;grid-template-columns:250px 1fr;gap:44px;padding:30px 0 60px;align-items:start}
.toc{position:sticky;top:84px;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);
     padding:16px 16px 14px;font-size:14px;max-height:calc(100vh - 110px);overflow:auto}
.toc-title{font-weight:800;font-size:15px;margin:0 0 10px;display:flex;align-items:center;justify-content:space-between}
.toc ol{list-style:none;margin:0;padding:0;counter-reset:t}
.toc > ol > li{counter-increment:t;margin-bottom:2px}
.toc > ol > li > a::before{content:counter(t) ". ";color:var(--ink-3)}
.toc a{display:block;padding:4px 6px;border-radius:6px;color:var(--ink-2);line-height:1.5}
.toc a:hover{background:#fff;color:var(--brand);text-decoration:none}
.toc ol ol{padding-left:12px;counter-reset:u}
.toc ol ol li{counter-increment:u}
.toc ol ol a{font-size:13.2px;color:var(--ink-3)}
.toc ol ol a::before{content:counter(t) "-" counter(u) ". "}

article h1{font-size:31px;line-height:1.35;letter-spacing:-.025em;margin:0 0 10px}
article .meta{color:var(--ink-3);font-size:14px;padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:26px}
article h2{font-size:22.5px;margin:44px 0 14px;letter-spacing:-.02em;padding-left:12px;border-left:4px solid var(--brand)}
article h3{font-size:17.5px;margin:28px 0 10px;color:var(--ink)}
article p{margin:0 0 15px;color:#2b3038}
article ul{margin:0 0 18px;padding-left:20px}
article li{margin-bottom:7px;color:#2b3038}
article .banner{margin:30px 0;border-radius:12px;overflow:hidden}
.faq-item{border:1px solid var(--line);border-radius:10px;padding:16px 18px;margin-bottom:10px;background:var(--bg-2)}
.faq-item .q{font-weight:700;margin:0 0 7px;color:var(--ink)}
.faq-item .a{margin:0;color:var(--ink-2);font-size:15.2px}
.area-chips{display:flex;flex-wrap:wrap;gap:7px;margin:0 0 18px;padding:0;list-style:none}
.area-chips li{margin:0}
.area-chips a,.area-chips span{display:inline-block;font-size:13.5px;background:var(--bg-2);border:1px solid var(--line);
  padding:5px 12px;border-radius:999px;color:var(--ink-2)}
.area-chips a:hover{background:var(--brand);color:#fff;border-color:var(--brand);text-decoration:none}

.cta-box{background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;border-radius:14px;
  padding:26px 24px;margin:34px 0;text-align:center}
.cta-box h3{margin:0 0 6px;font-size:20px;color:#fff}
.cta-box p{margin:0 0 16px;color:rgba(255,255,255,.88);font-size:15px}
.cta-box .btn-call{font-size:19px}

.related{border-top:1px solid var(--line);padding-top:26px;margin-top:40px}
.related h2{border:0;padding:0;font-size:19px;margin:0 0 14px}
.related ul{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:8px}
.related li{margin:0}
.related a{display:block;padding:11px 14px;background:var(--bg-2);border-radius:9px;font-size:14.5px;color:var(--ink-2)}
.related a:hover{background:var(--brand);color:#fff;text-decoration:none}

/* ---------- 푸터 ---------- */
footer.site{background:#141821;color:#98a0ad;padding:44px 0 96px;font-size:14px;margin-top:20px}
footer.site .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px;margin-bottom:28px}
footer.site h4{color:#fff;font-size:15px;margin:0 0 12px}
footer.site a{color:#98a0ad}
footer.site a:hover{color:#fff}
footer.site ul{list-style:none;padding:0;margin:0}
footer.site li{margin-bottom:7px}
footer.site .biz{border-top:1px solid #262c38;padding-top:20px;font-size:13px;line-height:1.9;color:#6f7885}
footer.site .fphone{color:#fff;font-size:24px;font-weight:800;display:block;margin-bottom:5px}

/* ---------- 하단 고정 전화 버튼 ---------- */
.floating{position:fixed;left:0;right:0;bottom:0;z-index:200;display:flex;
  box-shadow:0 -3px 18px rgba(0,0,0,.14)}
.floating a{flex:1;display:flex;align-items:center;justify-content:center;gap:8px;
  padding:15px 8px;font-weight:800;font-size:17px;color:#fff;background:var(--brand)}
.floating a.sms{background:var(--accent);flex:0 0 34%}
.floating a:hover{text-decoration:none;color:#fff}

/* ---------- 반응형 ---------- */
@media (max-width:1000px){
  .article-layout{grid-template-columns:1fr;gap:0}
  .toc{position:static;max-height:none;margin-bottom:26px}
  .toc ol{display:none}
  .toc.open ol{display:block}
  .toc-title{cursor:pointer}
}
@media (max-width:860px){
  .burger{display:block}
  nav.main{position:fixed;top:64px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;padding:8px 14px 16px;display:none;max-height:calc(100vh - 64px);overflow:auto}
  nav.main.open{display:flex}
  nav.main > ul{flex-direction:column;gap:0}
  nav.main > ul > li > a{padding:13px 6px;border-bottom:1px solid var(--line);border-radius:0}
  nav.main > ul > li > a::after{float:right;margin-top:8px}
  .submenu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;
    background:var(--bg-2);border-radius:8px;margin:6px 0 10px;display:none}
  nav.main li.open > .submenu{display:block}
  .head-call{display:none}
  .hero{padding:40px 0 36px}
  .hero h1{font-size:28px}
  .hero p{font-size:15.5px}
  article h1{font-size:24px}
  article h2{font-size:20px;margin:34px 0 12px}
  .page-head h1{font-size:24px}
  footer.site .cols{grid-template-columns:1fr;gap:22px}
  .post-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:20px 14px}
  .post-card h3{font-size:14.2px}
}