:root{--ink:#f2f3f5;--bg:#0f1112;--bg2:#171a1c;--muted:#9aa1a8;--line:#262b2e;--accent:#4c8dff;--navbg:rgba(15,17,18,.8)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;overflow-x:clip}
body{font-family:'Pretendard',system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased;word-break:keep-all;overflow-x:clip;overflow-wrap:anywhere}
.wrap{max-width:1240px;margin:0 auto;padding:0 32px}
.kicker{font-size:12px;letter-spacing:.28em;text-transform:uppercase;color:var(--accent);font-weight:700}
a{color:inherit}
header.nav{position:sticky;top:0;z-index:30;background:var(--navbg);backdrop-filter:saturate(140%) blur(12px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{font-size:21px;font-weight:800;letter-spacing:-.02em}
.nav .cta{background:var(--ink);color:var(--bg);padding:11px 22px;border-radius:6px;text-decoration:none;font-size:13px;font-weight:700;transition:transform .2s}
.nav .cta:hover{transform:translateY(-2px)}
.nav .co-menu{display:flex;gap:26px;margin-left:auto;margin-right:24px}
.nav .co-menu a{text-decoration:none;color:var(--ink);font-size:14px;opacity:.82;transition:color .2s,opacity .2s}
.nav .co-menu a:hover{color:var(--accent);opacity:1}
@media(max-width:860px){.nav .co-menu{display:none}}
/* hero */
.hero{padding:96px 0 80px;border-bottom:1px solid var(--line)}
.hero .grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(38px,5.6vw,76px);font-weight:900;line-height:1.04;letter-spacing:-.04em;margin:20px 0 22px}
.hero p{color:var(--muted);font-size:clamp(15px,1.4vw,18px);max-width:38ch}
.hero .img{aspect-ratio:4/3;border-radius:14px;overflow:hidden;background:var(--bg2);border:1px solid var(--line)}
.hero .img img{width:100%;height:100%;object-fit:cover;display:block;transform:scale(1.04);transition:transform 1.2s ease}
.hero:hover .img img{transform:scale(1)}
section{padding:104px 0}
.alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
h2.sec{font-size:clamp(26px,3vw,42px);font-weight:800;letter-spacing:-.03em;margin:14px 0 8px}
.lead{color:var(--muted);max-width:52ch;margin-bottom:48px}
/* tags */
.tags{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.tags span{border:1px solid var(--line);background:var(--bg2);border-radius:999px;padding:12px 22px;font-size:15px;font-weight:600;transition:border-color .2s,color .2s}
.tags span:hover{border-color:var(--accent);color:var(--accent)}
/* projects */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.proj{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--bg2);transition:transform .3s ease,border-color .3s ease}
.proj:hover{transform:translateY(-6px);border-color:var(--accent)}
.proj .ph{aspect-ratio:4/3;background:var(--bg2);background-size:cover;background-position:center;overflow:hidden}
.proj .ph img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .6s ease}
.proj:hover .ph img{transform:scale(1.07)}
.proj .body{padding:18px 20px}
.proj .body b{font-weight:700}.proj .body p{color:var(--muted);font-size:13px;margin-top:4px}
/* services */
.svc{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.svc .c{border-top:2px solid var(--accent);padding:26px 0 0}
.svc .c h3{font-size:20px;font-weight:800;margin-bottom:8px}
.svc .c p{color:var(--muted);font-size:15px}
/* faq */
.faq .list{display:grid;grid-template-columns:1fr 1fr;gap:16px 22px}
.faq details{border:1px solid var(--line);border-top:2px solid var(--accent);border-radius:12px;background:var(--bg2);overflow:hidden;transition:border-color .25s}
.faq details[open]{border-color:var(--accent)}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;padding:22px 24px;font-size:17px;font-weight:700;letter-spacing:-.01em}
.faq summary::-webkit-details-marker{display:none}
.faq summary .ic{flex:0 0 auto;width:26px;height:26px;line-height:24px;text-align:center;border:1px solid var(--line);border-radius:7px;color:var(--accent);font-size:18px;font-weight:700;transition:transform .25s,border-color .25s}
.faq details[open] summary .ic{transform:rotate(45deg);border-color:var(--accent)}
.faq details .a{color:var(--muted);font-size:15px;line-height:1.7;padding:0 24px 22px 64px}
/* contact */
.contact .grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.contact dl{display:grid;grid-template-columns:96px 1fr;gap:14px 16px;font-size:16px}
.contact dt{color:var(--muted)}
.contact .call a{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;font-size:18px;font-weight:700;padding:18px 32px;border-radius:10px;transition:transform .2s}
.contact .call a:hover{transform:translateY(-3px)}
footer{padding:48px 0;border-top:1px solid var(--line);color:var(--muted);font-size:14px}
footer .ft{display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px}
footer b{color:var(--ink);font-weight:700}
@media(prefers-reduced-motion:no-preference){
.js [data-reveal]{opacity:0;transform:translateY(30px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
[data-reveal].in{opacity:1;transform:none}
}
@media(max-width:860px){.hero .grid,.contact .grid{grid-template-columns:1fr;gap:28px}.cards,.svc,.faq .list{grid-template-columns:1fr}}
@media(max-width:640px){.wrap{padding:0 20px}section{padding:64px 0}.hero{padding:56px 0}}
/* --- 공통 문의 모달(sf-iq) --- */
.sf-iq-fab{position:fixed;right:20px;bottom:20px;z-index:9998;display:inline-flex;align-items:center;gap:8px;border:0;cursor:pointer;background:#2563eb;color:#ffffff;font:600 15px/1 'Pretendard',system-ui,sans-serif;padding:15px 22px;border-radius:999px;box-shadow:0 8px 24px rgba(0,0,0,.22);transition:transform .18s ease,box-shadow .18s ease}
.sf-iq-fab:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(0,0,0,.28)}
.sf-iq-fab .sf-iq-dot{width:8px;height:8px;border-radius:50%;background:#ffffff;opacity:.9}
.sf-iq-back{position:fixed;inset:0;z-index:9999;display:none;align-items:center;justify-content:center;padding:20px;background:rgba(15,17,20,.55);backdrop-filter:blur(3px)}
.sf-iq-back.open{display:flex}
.sf-iq-modal{width:100%;max-width:460px;background:#fff;color:#16181c;border-radius:18px;overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.35);transform:translateY(14px) scale(.98);opacity:0;transition:transform .26s cubic-bezier(.2,.7,.2,1),opacity .26s ease;font-family:'Pretendard',system-ui,sans-serif;line-height:1.6;word-break:keep-all;overflow-wrap:anywhere}
.sf-iq-back.open .sf-iq-modal{transform:none;opacity:1}
.sf-iq-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:24px 24px 6px}
.sf-iq-head h3{font-size:20px;font-weight:800;letter-spacing:-.01em;margin:0}
.sf-iq-head p{margin:6px 0 0;color:#6b7078;font-size:13px}
.sf-iq-x{flex:none;width:34px;height:34px;border:0;background:#f1f2f4;border-radius:10px;cursor:pointer;font-size:18px;color:#444;line-height:1}
.sf-iq-x:hover{background:#e6e8ea}
.sf-iq-body{padding:14px 24px 24px}
.sf-iq-field{margin-top:14px}
.sf-iq-field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:#33373d}
.sf-iq-field input,.sf-iq-field textarea{width:100%;border:1px solid #d9dce0;border-radius:10px;padding:12px 14px;font:inherit;font-size:15px;color:#16181c;background:#fff;transition:border-color .18s,box-shadow .18s}
.sf-iq-field textarea{min-height:96px;resize:vertical}
.sf-iq-field input:focus,.sf-iq-field textarea:focus{outline:0;border-color:#2563eb;box-shadow:0 0 0 3px #2563eb22}
.sf-iq-submit{margin-top:18px;width:100%;border:0;cursor:pointer;background:#2563eb;color:#ffffff;font:700 16px/1 'Pretendard',system-ui,sans-serif;padding:15px;border-radius:12px;transition:filter .18s,transform .12s}
.sf-iq-submit:hover{filter:brightness(1.05)}
.sf-iq-submit:active{transform:translateY(1px)}
.sf-iq-submit[disabled]{opacity:.6;cursor:default}
.sf-iq-note{margin-top:12px;font-size:12px;color:#8a8f96;text-align:center}
.sf-iq-note a{color:#2563eb}
.sf-iq-ok,.sf-iq-err{display:none;padding:8px 0 4px}
.sf-iq-ok.show,.sf-iq-err.show{display:block}
.sf-iq-ok{text-align:center}
.sf-iq-ok .sf-iq-check{width:54px;height:54px;border-radius:50%;background:#2563eb;color:#ffffff;display:flex;align-items:center;justify-content:center;font-size:26px;margin:6px auto 14px}
.sf-iq-ok h4{font-size:18px;margin:0 0 6px}
.sf-iq-ok p{color:#6b7078;font-size:14px;margin:0}
.sf-iq-err{color:#c0392b;font-size:13px;text-align:center}
/* 플로팅 레일(전화/문의/지도/TOP) */
.sf-iq-rail{position:fixed;right:18px;top:50%;transform:translateY(-50%);z-index:9998;display:flex;flex-direction:column;gap:10px}
.sf-iq-r{width:54px;height:54px;border-radius:14px;border:0;cursor:pointer;background:#fff;color:#16181c;font:700 12px/1 'Pretendard',system-ui,sans-serif;display:flex;align-items:center;justify-content:center;text-decoration:none;box-shadow:0 6px 18px rgba(0,0,0,.18);transition:transform .16s ease,filter .16s}
.sf-iq-r:hover{transform:translateY(-2px);filter:brightness(.97)}
.sf-iq-r-on{background:#2563eb;color:#ffffff}
.sf-iq-r[data-sf-top]{opacity:0;transform:translateY(10px) scale(.85);pointer-events:none;transition:opacity .3s cubic-bezier(.2,.7,.2,1),transform .3s cubic-bezier(.2,.7,.2,1)}
.sf-iq-r[data-sf-top].sf-show{opacity:1;transform:none;pointer-events:auto}
@media(max-width:520px){.sf-iq-fab{right:14px;bottom:14px;padding:13px 18px;font-size:14px}.sf-iq-modal{max-width:none}.sf-iq-rail{right:12px;gap:8px}.sf-iq-r{width:46px;height:46px;font-size:11px;border-radius:12px}}
/* --- 인라인 상담문의 섹션(sf-ct) --- */
.sf-ct{box-sizing:border-box;width:100%;padding:clamp(56px,8vw,104px) 20px;background:#f0f4fe;font-family:'Pretendard',system-ui,sans-serif;color:#16181c;word-break:keep-all;overflow-wrap:anywhere}
.sf-ct *{box-sizing:border-box}
.sf-ct-inner{max-width:1080px;margin:0 auto;display:grid;grid-template-columns:0.85fr 1.15fr;gap:clamp(28px,4vw,56px);align-items:start}
.sf-ct-eyebrow{font-size:12px;font-weight:700;letter-spacing:.22em;color:#2563eb;margin:0 0 12px}
.sf-ct-info h2{font-size:clamp(26px,3.4vw,38px);font-weight:800;letter-spacing:-.02em;margin:0 0 14px;line-height:1.2}
.sf-ct-lead{font-size:15px;line-height:1.7;color:#525860;margin:0 0 26px;max-width:36ch}
.sf-ct-meta{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}
.sf-ct-meta li{display:flex;gap:14px;align-items:baseline;font-size:15px;line-height:1.5}
.sf-ct-meta .k{flex:none;width:64px;font-size:12px;font-weight:700;color:#9097a0;letter-spacing:.04em}
.sf-ct-meta a{color:inherit;text-decoration:none}
.sf-ct-meta a:hover{text-decoration:underline}
.sf-ct-dir{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
.sf-ct-dir a{display:inline-flex;align-items:center;gap:7px;padding:11px 16px;border-radius:10px;font-size:13px;font-weight:700;text-decoration:none;border:1px solid rgba(37,99,235,0.28);color:#2563eb;background:#fff;transition:transform .15s,box-shadow .15s}
.sf-ct-dir a:hover{transform:translateY(-1px);box-shadow:0 6px 16px rgba(37,99,235,0.18)}
.sf-ct-form{background:#fff;border-radius:18px;padding:clamp(24px,3vw,36px);box-shadow:0 24px 60px rgba(16,18,22,.10);border:1px solid rgba(16,18,22,.06)}
.sf-ct-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.sf-ct-field{margin-bottom:16px}
.sf-ct-field label{display:block;font-size:13px;font-weight:600;margin-bottom:7px;color:#33373d}
.sf-ct-field label .req{color:#2563eb;margin-left:3px}
.sf-ct-field input,.sf-ct-field textarea{width:100%;border:1px solid #d9dce0;border-radius:11px;padding:13px 15px;font:inherit;font-size:15px;color:#16181c;background:#fbfbfc;transition:border-color .16s,box-shadow .16s,background .16s}
.sf-ct-field textarea{min-height:118px;resize:vertical}
.sf-ct-field input:focus,.sf-ct-field textarea:focus{outline:0;border-color:#2563eb;background:#fff;box-shadow:0 0 0 3px rgba(37,99,235,0.16)}
.sf-ct-agree{display:flex;align-items:flex-start;gap:9px;font-size:13px;color:#6b7078;margin:4px 0 18px;line-height:1.5}
.sf-ct-agree input{flex:none;width:17px;height:17px;margin-top:1px;accent-color:#2563eb}
.sf-ct-submit{width:100%;border:0;cursor:pointer;background:#2563eb;color:#ffffff;font:800 16.5px/1 'Pretendard',system-ui,sans-serif;letter-spacing:.01em;padding:17px;border-radius:12px;box-shadow:0 8px 20px rgba(37,99,235,0.32);transition:filter .16s,transform .1s,box-shadow .16s}
.sf-ct-submit:hover{filter:brightness(1.08);box-shadow:0 10px 26px rgba(37,99,235,0.4)}
.sf-ct-submit:active{transform:translateY(1px)}
.sf-ct-submit[disabled]{opacity:.6;cursor:default}
.sf-ct-msg{margin-top:13px;font-size:13.5px;text-align:center;display:none}
.sf-ct-msg.show{display:block}
.sf-ct-msg.ok{color:#2563eb;font-weight:600}
.sf-ct-msg.err{color:#c0392b}
@media(max-width:780px){.sf-ct-inner{grid-template-columns:1fr;gap:30px}.sf-ct-row{grid-template-columns:1fr}}
.sf-map{margin:20px 0}
.sf-map+*{margin-top:18px}
.sf-map-embed{width:100%;aspect-ratio:16/9;min-height:240px;border-radius:10px;overflow:hidden;position:relative;background:#e9ecef}
.sf-map-embed iframe,.sf-map-embed .root_daum_roughmap,.sf-map-embed .root_daum_roughmap .wrap_map,.sf-map-embed>div{width:100%!important;height:100%!important}
.sf-map-embed .root_daum_roughmap .map_border{display:none!important}
.sf-map-fallback{border:1px solid rgba(128,128,128,.28);border-radius:10px;padding:22px}
.sf-map-addr{font-size:15px;line-height:1.6;display:flex;gap:10px;align-items:baseline}
.sf-map-pin{flex:none;font-size:11px;font-weight:700;letter-spacing:.04em;opacity:.55;border:1px solid currentColor;border-radius:6px;padding:3px 7px}
.sf-map-links{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.sf-map-links a{display:inline-block;border:1px solid var(--line,#ddd);border-radius:10px;padding:10px 16px;font-size:13px;text-decoration:none;color:inherit}
.sf-map-links a:hover{border-color:var(--ink,#333);opacity:1}
.sf-draggable{cursor:grab;scroll-behavior:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.sf-draggable::-webkit-scrollbar{display:none}
.sf-draggable.sf-dragging{cursor:grabbing;scroll-snap-type:none;user-select:none}
.sf-draggable img{-webkit-user-drag:none;user-drag:none}
.sf-lb-clickable{cursor:zoom-in}
.sf-lb{position:fixed;inset:0;z-index:10000;display:none;align-items:center;justify-content:center;background:rgba(8,9,11,.92);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}
.sf-lb.open{display:flex}
.sf-lb img{max-width:92vw;max-height:86vh;object-fit:contain;border-radius:6px;box-shadow:0 20px 60px rgba(0,0,0,.5);user-select:none;-webkit-user-drag:none}
.sf-lb-btn{position:absolute;border:0;cursor:pointer;background:rgba(255,255,255,.12);color:#fff;width:52px;height:52px;border-radius:50%;font-size:24px;line-height:1;display:flex;align-items:center;justify-content:center;transition:background .16s}
.sf-lb-btn:hover{background:rgba(255,255,255,.24)}
.sf-lb-prev{left:18px;top:50%;transform:translateY(-50%)}
.sf-lb-next{right:18px;top:50%;transform:translateY(-50%)}
.sf-lb-close{top:18px;right:18px;width:46px;height:46px;font-size:22px}
.sf-lb-count{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,.85);font:600 13px/1 'Pretendard',system-ui,sans-serif;letter-spacing:.04em}
@media(max-width:560px){.sf-lb-btn{width:44px;height:44px;font-size:20px}.sf-lb-prev{left:8px}.sf-lb-next{right:8px}}
.sf-yt{position:relative;width:100%;aspect-ratio:16/9;background:#0a0a0a center/cover no-repeat;border-radius:14px;overflow:hidden;cursor:pointer}
.sf-yt::after{content:"";position:absolute;inset:0;background:rgba(0,0,0,.18);transition:background .2s}
.sf-yt:hover::after{background:rgba(0,0,0,.05)}
.sf-yt-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:2;width:78px;height:78px;border-radius:50%;background:rgba(18,18,20,.74);display:flex;align-items:center;justify-content:center;transition:transform .18s,background .18s;pointer-events:none}
.sf-yt:hover .sf-yt-play{transform:translate(-50%,-50%) scale(1.08);background:#e02f2f}
.sf-yt-play svg{width:30px;height:30px;margin-left:4px;fill:#fff}
.sf-yt iframe{position:absolute;inset:0;width:100%;height:100%;border:0;z-index:3}
.sf-video{display:block;width:100%;border-radius:14px;overflow:hidden;background:#000}
.sf-video video{display:block;width:100%;height:auto}