/* ===== 프로샷시 공통 스타일 (서비스/전문지식/시공사례 하위 페이지) ===== */
:root{
  --bg:#060c1a; --bg2:#0a1122; --card:#0d1a33; --card2:#0d1526;
  --line:rgba(37,99,235,.25);
  --blue:#2563eb; --blue-d:#1d4ed8; --blue-l:#60a5fa; --blue-ll:#93c5fd;
  --white:#f8fafc; --gray:#94a3b8; --muted:#64748b; --soft:#e2e8f0;
  --kakao:#FEE500; --kakao-t:#3C1E1E;
  --grad-blue:linear-gradient(135deg,#1d4ed8,#3b82f6);
  --radius:16px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{font-family:'Pretendard',system-ui,sans-serif;background:var(--bg);color:var(--white);
  line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden;width:100%}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 26px;border-radius:999px;
  font-weight:700;font-size:16px;transition:.2s;cursor:pointer;border:none}
.btn-blue{background:var(--grad-blue);color:#fff;box-shadow:0 8px 24px rgba(37,99,235,.35)}
.btn-blue:hover{transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,.06);color:#fff;border:1px solid var(--line)}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-kakao{background:var(--kakao);color:var(--kakao-t)}

/* ---- Header ---- */
header{position:sticky;top:0;z-index:100;background:rgba(6,12,26,.82);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line)}
header .nav{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
header .logo img{height:34px;width:auto}
header .menu{display:flex;gap:26px;font-size:15px;font-weight:600}
header .menu a{color:var(--soft);transition:color .2s}
header .menu a:hover,header .menu a.active{color:var(--blue-l)}
.nav-cta{padding:10px 20px!important;font-size:14px!important}
.burger{display:none;background:none;border:none;color:#fff;font-size:24px;cursor:pointer}
@media(max-width:860px){
  header .menu{position:absolute;top:64px;left:0;right:0;flex-direction:column;gap:0;
    background:rgba(6,12,26,.97);border-bottom:1px solid var(--line);max-height:0;overflow:hidden;transition:max-height .3s}
  header .menu.open{max-height:420px}
  header .menu a{padding:14px 20px;border-top:1px solid var(--line)}
  .burger{display:block}
  .nav-cta{display:none}
}

/* ---- Breadcrumb ---- */
.breadcrumb{font-size:13px;color:var(--gray);padding:22px 0 0;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.breadcrumb a{color:var(--gray)}
.breadcrumb a:hover{color:var(--blue-l)}
.breadcrumb .sep{opacity:.5}
.breadcrumb [aria-current]{color:var(--soft)}

/* ---- Article / Service layout ---- */
.page{padding:8px 0 70px}
.doc{max-width:820px;margin:0 auto}
.doc-cat{display:inline-block;margin:16px 0 0;font-size:12px;font-weight:800;letter-spacing:.05em;
  color:var(--blue-l);background:rgba(37,99,235,.12);border:1px solid var(--line);padding:5px 12px;border-radius:999px}
.doc h1{font-size:clamp(25px,4.6vw,38px);font-weight:800;line-height:1.28;letter-spacing:-.01em;margin-top:14px}
.doc .lead{color:var(--soft);font-size:clamp(16px,2.2vw,18px);margin-top:16px;line-height:1.8}
.doc .article-meta{color:var(--muted);font-size:13px;margin-top:14px;display:flex;gap:14px;flex-wrap:wrap}
.doc .hero-img{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);margin:26px 0 6px;background:var(--card2)}
.doc .hero-img img{width:100%;height:auto;display:block}
.figcap{color:var(--muted);font-size:13px;text-align:center;margin-top:8px}
.article-body{margin-top:10px}
.article-body h2{font-size:clamp(20px,3vw,26px);font-weight:800;line-height:1.35;margin:38px 0 14px;color:#fff}
.article-body h3{font-size:18px;font-weight:700;margin:24px 0 10px;color:var(--blue-ll)}
.article-body p{color:var(--soft);font-size:16.5px;line-height:1.9;margin:0 0 16px}
.article-body ul{margin:0 0 18px;padding-left:2px;list-style:none;display:flex;flex-direction:column;gap:10px}
.article-body ul li{position:relative;padding-left:24px;color:var(--soft);line-height:1.75}
.article-body ul li::before{content:"";position:absolute;left:4px;top:11px;width:8px;height:8px;border-radius:50%;background:var(--blue)}
.article-body strong{color:#fff}
.callout{background:var(--card);border:1px solid var(--line);border-left:4px solid var(--blue);
  border-radius:12px;padding:18px 20px;margin:22px 0;color:var(--soft);font-size:15.5px}
.callout a{color:var(--blue-l);font-weight:700}

/* before/after */
.ba-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:22px 0 6px}
.ba-grid figure{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--card2)}
.ba-grid img{width:100%;height:auto;display:block;aspect-ratio:4/3;object-fit:cover}
.ba-grid figcaption{font-size:13px;font-weight:700;text-align:center;padding:8px;color:var(--soft)}
.ba-grid .before figcaption{color:#fca5a5}
.ba-grid .after figcaption{color:var(--blue-ll)}
@media(max-width:560px){.ba-grid{grid-template-columns:1fr}}

/* ---- Related sections ---- */
.related{max-width:820px;margin:44px auto 0}
.related h2{font-size:19px;font-weight:800;margin-bottom:14px}
.rel-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.rel-card{display:flex;gap:14px;align-items:center;background:var(--card);border:1px solid var(--line);
  border-radius:14px;padding:14px;transition:.2s}
.rel-card:hover{border-color:var(--blue);transform:translateY(-2px)}
.rel-card .thumb{flex:0 0 66px;width:66px;height:66px;border-radius:10px;overflow:hidden;background:var(--card2)}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover}
.rel-card .tag{font-size:12px;color:var(--blue-l);font-weight:700;margin-bottom:3px}
.rel-card .tt{font-size:14.5px;font-weight:700;color:var(--white);line-height:1.4}

/* ---- CTA ---- */
.cta-box{max-width:820px;margin:48px auto 0;background:linear-gradient(160deg,#0d1a33,#0f2040);
  border:1px solid var(--line);border-radius:20px;padding:34px 28px;text-align:center}
.cta-box h2{font-size:clamp(20px,3vw,26px);font-weight:800}
.cta-box p{color:var(--gray);margin:12px auto 22px;max-width:520px;font-size:15.5px}
.cta-box .row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ---- List index ---- */
.list-head{text-align:center;padding:34px 0 8px}
.list-head .eyebrow{color:var(--blue-l);font-weight:700;letter-spacing:.04em;font-size:14px;margin-bottom:8px}
.list-head h1{font-size:clamp(24px,4vw,36px);font-weight:800}
.list-head p{color:var(--gray);margin-top:12px}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:22px;margin:30px 0 20px}
.pcard{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.pcard:hover{transform:translateY(-5px);box-shadow:0 20px 40px rgba(37,99,235,.18)}
.pcard .pimg{aspect-ratio:16/10;overflow:hidden;background:var(--card2)}
.pcard .pimg img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.pcard:hover .pimg img{transform:scale(1.05)}
.pcard .pbody{padding:16px 18px 18px}
.pcard .pcat{font-size:11px;font-weight:800;letter-spacing:.05em;color:var(--blue-l);text-transform:uppercase}
.pcard h2,.pcard h3{font-size:16.5px;font-weight:800;line-height:1.45;margin:8px 0 6px}
.pcard .pdesc{color:var(--gray);font-size:14px;line-height:1.6}

/* ---- Footer ---- */
footer{background:var(--bg2);border-top:1px solid var(--line);padding:52px 0 26px}
footer .foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:34px}
footer h2{font-size:14px;margin-bottom:14px;color:#fff;font-weight:700}
footer a{display:block;color:var(--gray);font-size:14px;padding:4px 0;transition:color .2s}
footer a:hover{color:var(--blue-l)}
footer .foot-desc{color:var(--muted);font-size:14px;max-width:320px}
footer .copy{color:var(--muted);font-size:13px;margin-top:34px;padding-top:20px;border-top:1px solid var(--line)}
@media(max-width:700px){footer .foot-grid{grid-template-columns:1fr}}

/* ---- Floating buttons ---- */
.fab{position:fixed;right:18px;bottom:18px;z-index:200;display:flex;flex-direction:column;gap:10px}
.fab a{display:inline-flex;align-items:center;gap:8px;padding:14px 18px;border-radius:999px;font-weight:800;
  font-size:15px;box-shadow:0 10px 28px rgba(0,0,0,.35)}
.fab .call{background:var(--grad-blue);color:#fff}
.fab .kko{background:var(--kakao);color:var(--kakao-t)}
@media(max-width:560px){.fab a span{display:none}.fab a{padding:15px}}

/* ---- FAQ ---- */
.faq-list{display:flex;flex-direction:column;gap:10px;margin:6px 0 4px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.faq-item summary{cursor:pointer;list-style:none;padding:16px 46px 16px 18px;font-weight:700;color:#fff;position:relative;font-size:15.5px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);color:var(--blue-l);font-size:20px;font-weight:800}
.faq-item[open] summary::after{content:"−"}
.faq-item .faq-a{padding:0 18px 16px}
.faq-item .faq-a p{color:var(--soft);font-size:15px;line-height:1.8;margin:0}
.related-service h2::before{content:"🔧 "}
.related-cases h2::before{content:"📸 "}
.related-posts h2::before{content:"📖 "}

/* ---- spec list (case 현장정보) ---- */
.spec-list{list-style:none;padding:0;margin:0 0 18px;display:flex;flex-direction:column;gap:8px}
.spec-list li{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px 16px;color:var(--soft)}
.spec-list li strong{color:var(--blue-ll);margin-right:8px}

/* ---- Site search ---- */
.search-wrap{max-width:720px;margin:20px auto 0}
.search-wrap #q{width:100%;padding:16px 20px;border-radius:14px;border:1px solid var(--line);
  background:var(--card);color:#fff;font-size:16px;font-family:inherit;outline:none}
.search-wrap #q:focus{border-color:var(--blue)}
.search-cnt{color:var(--gray);font-size:14px;margin:16px 2px 8px}
.search-res{display:flex;flex-direction:column;gap:10px;margin-bottom:40px}
.search-res .sr{display:block;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 18px;transition:.2s}
.search-res .sr:hover{border-color:var(--blue);transform:translateY(-2px)}
.search-res .src{display:inline-block;font-size:11px;font-weight:800;color:var(--blue-l);letter-spacing:.04em;margin-bottom:6px}
.search-res .srt{display:block;font-size:16px;font-weight:800;color:#fff;line-height:1.4}
.search-res .srd{display:block;font-size:14px;color:var(--gray);margin-top:5px;line-height:1.55}