:root{
  --navy:#1b2a66; --navy-d:#131f4d; --blue:#2a7bd0; --sky:#e8f3fb; --sky2:#d6e9f7; --green:#00a86b; --green-d:#008a58;
  --ink:#1d2433; --ink2:#566074; --line:#dfe6ee; --bg:#fff; --gray:#f4f6f9;
  --r:16px; --w:1080px;
  --red:var(--navy); --dark:var(--navy-d);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;font-family:Pretendard,"Noto Sans KR","Malgun Gothic",system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;-webkit-text-size-adjust:100%;padding-bottom:76px}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:var(--w);margin:0 auto;padding:0 20px}
[hidden]{display:none!important}

/* header */
.top{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top-in{display:flex;align-items:center;gap:24px;height:68px}
.brand img{height:40px;width:auto}
.nav{display:flex;gap:24px;margin-left:auto;font-weight:600;font-size:15px}
.nav a{text-decoration:none;color:var(--ink2);padding:6px 2px}
.nav a:hover{color:var(--navy)}
.top-tel{font-weight:800;color:var(--navy);text-decoration:none;letter-spacing:.2px;white-space:nowrap}

/* hero */
.hero{position:relative;color:#fff;background:var(--navy-d) url(/assets/hero.jpg) 60% center/cover no-repeat}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(14,22,60,.92) 0%,rgba(19,31,77,.74) 52%,rgba(19,31,77,.3) 100%)}
.hero-in{position:relative;padding:92px 20px 128px}
.chip{display:inline-block;margin:0 0 18px;background:var(--green);color:#fff;font-weight:700;font-size:14px;padding:6px 14px;border-radius:99px}
.hero h1{margin:0 0 16px;font-size:clamp(30px,5.4vw,54px);line-height:1.2;letter-spacing:-1.4px;font-weight:800}
.hero h1 em{font-style:normal;color:#8fe3bd}
.lead{margin:0 0 30px;font-size:clamp(16px,2.3vw,19px);opacity:.93}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:14px 26px;border-radius:12px;font-weight:700;text-decoration:none;font-size:16px;border:2px solid transparent;cursor:pointer;font-family:inherit}
.btn-main{background:var(--green);color:#fff}
.btn-main:hover{background:var(--green-d)}
.btn-ghost{border-color:rgba(255,255,255,.7);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-dark{background:var(--navy);color:#fff}

/* 서비스 위젯 4개 + 빠른 상담 (히어로 위로 걸쳐 올라온 카드) */
.widgets{margin-top:-66px;position:relative;z-index:2}
.wg-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.wg{display:grid;justify-items:center;text-align:center;gap:2px;background:#fff;border-radius:var(--r);padding:22px 12px 20px;text-decoration:none;box-shadow:0 10px 30px rgba(19,31,77,.14);border:1px solid var(--line);transition:transform .15s}
.wg:hover{transform:translateY(-4px)}
.wg i{display:grid;place-items:center;width:56px;height:56px;border-radius:50%;background:var(--sky);color:var(--blue);margin-bottom:8px}
.wg svg,.wg svg g{fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.wg svg{width:28px;height:28px}
.wg b{font-size:17px}
.wg span{font-size:13.5px;color:var(--ink2)}
.quick-bar{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:16px;margin-top:14px;background:var(--navy);color:#fff;border-radius:var(--r);padding:18px 26px;text-decoration:none}
.qb-k{font-weight:700;opacity:.9}
.qb-n{font-size:clamp(22px,4vw,30px);font-weight:800;letter-spacing:.5px;text-align:center}
.qb-s{font-size:13.5px;background:var(--green);padding:4px 12px;border-radius:99px;font-weight:700}

/* sections */
.sec{padding:84px 0}
.sec-sky{background:var(--sky)}
.eyebrow{margin:0 0 6px;color:var(--green);font-weight:800;letter-spacing:2px;font-size:13px}
h2{margin:0 0 14px;font-size:clamp(25px,4vw,36px);line-height:1.3;letter-spacing:-.8px;color:var(--navy)}
.sub{margin:0 0 30px;color:var(--ink2)}
.sub b{color:var(--navy)}

/* 선택 이유 */
.why{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:center}
.why-note{color:var(--ink2);margin:0}
.pills{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.pills li{display:grid;grid-template-columns:44px 1fr;align-items:center;gap:14px;background:linear-gradient(90deg,#fff,var(--sky));border:1px solid var(--sky2);border-radius:99px;padding:10px 24px 10px 12px;box-shadow:0 6px 16px rgba(42,123,208,.10)}
.pills i{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:var(--blue);color:#fff}
.pills svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}
.pills span{font-size:16.5px;font-weight:600}
.pills b{color:var(--navy)}

/* 판넬 종류 */
.g-h{margin:34px 0 16px;font-size:20px;color:var(--navy)}
.g-h small{font-size:14px;font-weight:500;color:var(--ink2);margin-left:8px}
.circles{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.cir{background:#fff;border-radius:var(--r);padding:24px 18px 22px;text-align:center;border:1px solid var(--sky2)}
.cir img{width:128px;height:128px;border-radius:50%;object-fit:cover;margin:0 auto 14px;border:4px solid var(--sky)}
.cir b{display:block;font-size:18px;color:var(--navy);margin-bottom:6px}
.cir span{display:block;font-size:14px;color:var(--ink2)}
.fills{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.fill{background:#fff;border-radius:var(--r);padding:22px;border:1px solid var(--sky2);border-top:4px solid var(--blue)}
.fill b{font-size:18px;color:var(--navy)}
.fill p{margin:8px 0 12px;color:var(--ink2);font-size:15px}
.fill em{font-style:normal;display:inline-block;background:var(--sky);color:var(--blue);font-weight:700;font-size:13.5px;padding:4px 12px;border-radius:99px}

/* 시공 분야 */
.scope-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:26px}
.scope-list article{background:var(--gray);border-radius:var(--r);padding:24px 22px;border-left:5px solid var(--green)}
.scope-list b{font-size:18px;color:var(--navy)}
.scope-list p{margin:6px 0 0;color:var(--ink2);font-size:15px}
.note-box{margin-top:18px;background:var(--navy);color:#fff;border-radius:var(--r);padding:22px 26px}
.note-box b{display:block;color:#8fe3bd;margin-bottom:4px}
.note-box p{margin:0;opacity:.95}

/* 진행 절차 */
.steps-list{list-style:none;margin:28px 0 0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:s}
.steps-list li{counter-increment:s;position:relative;background:#fff;border-radius:var(--r);padding:60px 22px 24px;border:1px solid var(--sky2)}
.steps-list li::before{content:counter(s);position:absolute;left:22px;top:16px;width:34px;height:34px;border-radius:50%;background:var(--navy);color:#fff;font-weight:800;display:grid;place-items:center;line-height:1}
.steps-list b{display:block;font-size:18px;color:var(--navy);margin-bottom:6px}
.steps-list span{color:var(--ink2);font-size:15px}

/* 시공후기: 종류 필터 + 카드 */
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 22px}
.chips button{font:inherit;font-weight:700;font-size:15px;padding:9px 18px;border-radius:99px;border:1.5px solid var(--sky2);background:#fff;color:var(--ink2);cursor:pointer}
.chips button:hover{border-color:var(--blue);color:var(--blue)}
.chips button.on{background:var(--navy);border-color:var(--navy);color:#fff}
.chips small{opacity:.7;margin-left:4px;font-weight:600}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{display:block;text-align:left;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;text-decoration:none;color:inherit;padding:0;cursor:pointer;font-family:inherit;transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-3px);box-shadow:0 10px 26px rgba(19,31,77,.14)}
.thumb{position:relative;aspect-ratio:4/3;background:#e6ebf1}
.thumb img{width:100%;height:100%;object-fit:cover}
.badge{position:absolute;left:10px;top:10px;background:rgba(19,31,77,.8);color:#fff;font-size:12px;font-weight:700;padding:3px 10px;border-radius:99px}
.badge.red{background:var(--green)}
.card-b{padding:14px 16px 18px}
.card-b h3{margin:0 0 4px;font-size:16.5px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-b p{margin:0;color:var(--ink2);font-size:13.5px}
.empty{grid-column:1/-1;text-align:center;color:var(--ink2);padding:56px 0;background:var(--gray);border-radius:var(--r)}
.more{text-align:center;margin:30px 0 0}

/* 문의 */
.contact{display:grid;grid-template-columns:1.2fr 1fr;gap:48px}
.contact p{color:var(--ink2)}
.steps{background:var(--sky);padding:14px 16px;border-radius:12px;font-size:15px}
.steps b{color:var(--navy);margin-right:8px}
.info{margin:0;border-top:3px solid var(--navy)}
.info div{display:grid;grid-template-columns:90px 1fr;gap:10px;padding:16px 4px;border-bottom:1px solid var(--line)}
.info dt{font-weight:700;color:var(--navy)}
.info dd{margin:0;color:var(--ink2)}
.info a{color:var(--navy);font-weight:800;text-decoration:none}
.info small{color:var(--green);font-weight:700;margin-left:6px}

.foot{background:var(--navy-d);color:#b4bdd6;padding:34px 0;font-size:14px}
.foot p{margin:2px 0}
.foot b{color:#fff}
.copy{margin-top:10px!important;font-size:12.5px;opacity:.7}

/* floating */
.float{position:fixed;z-index:30;left:50%;transform:translateX(-50%);bottom:max(14px,env(safe-area-inset-bottom));display:flex;gap:10px;filter:drop-shadow(0 6px 16px rgba(0,0,0,.28))}
.float a{padding:14px 26px;border-radius:99px;font-weight:800;text-decoration:none;font-size:16px;white-space:nowrap}
.f-tel{background:var(--red);color:#fff}
.f-go{background:#fff;color:var(--ink);border:2px solid var(--dark)}

/* dialog */
.dlg{border:0;border-radius:18px;padding:0;width:min(780px,94vw);max-height:90vh;overflow:auto;color:var(--ink)}
.dlg::backdrop{background:rgba(0,0,0,.6)}
.dlg-x{position:sticky;top:0;float:right;margin:10px 10px 0 0;width:38px;height:38px;border-radius:50%;border:0;background:var(--dark);color:#fff;font-size:16px;cursor:pointer;z-index:2}
.dlg-in{padding:26px 24px 30px}
.dlg-in h3{margin:0 0 4px;font-size:22px;line-height:1.35;padding-right:40px}
.dlg-meta{margin:0 0 20px;color:var(--ink2);font-size:14px}
.stage{margin:0 0 24px}
.stage h4{margin:0 0 10px;display:flex;align-items:center;gap:8px;font-size:17px}
.stage h4 i{font-style:normal;background:var(--red);color:#fff;font-size:12px;padding:2px 9px;border-radius:99px}
.stage.s-during h4 i{background:#e08a00}
.stage.s-after h4 i{background:#1b8f4d}
.ph{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:8px}
.ph img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:8px;background:#e9eaec}
.stage p{margin:10px 0 0;color:var(--ink2);white-space:pre-line}
.ph img{cursor:zoom-in}

/* 사진 확대 보기 */
.lb{border:0;padding:0;margin:0;width:100vw;height:100vh;height:100dvh;max-width:100vw;max-height:100dvh;background:#000;color:#fff;overflow:hidden}
.lb::backdrop{background:#000}
.lb-stage{position:absolute;inset:0;display:grid;place-items:center;touch-action:pan-y;user-select:none;-webkit-user-select:none}
.lb-stage img{max-width:100%;max-height:100%;object-fit:contain;-webkit-user-drag:none;will-change:transform}
.lb-tag{position:absolute;left:14px;top:14px;padding:6px 14px;border-radius:99px;font-weight:800;font-size:15px;background:var(--red);color:#fff;box-shadow:0 2px 10px rgba(0,0,0,.4)}
.lb-tag.s-during{background:#e08a00}
.lb-tag.s-after{background:#1b8f4d}
.lb-cnt{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);font-size:14px;background:rgba(0,0,0,.55);padding:4px 12px;border-radius:99px}
.lb-x{position:absolute;right:12px;top:12px;width:42px;height:42px;border-radius:50%;border:0;background:rgba(255,255,255,.18);color:#fff;font-size:18px;cursor:pointer}
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:64px;border:0;background:rgba(255,255,255,.16);color:#fff;font-size:36px;line-height:1;cursor:pointer;border-radius:10px}
.lb-nav:hover,.lb-x:hover{background:rgba(255,255,255,.3)}
.lb-prev{left:10px}.lb-next{right:10px}
@media (max-width:520px){.lb-nav{width:40px;height:54px;font-size:30px;background:rgba(255,255,255,.12)}}

@media (max-width:860px){
  .nav{display:none}
  .top-tel{margin-left:auto}
  .about,.contact{grid-template-columns:1fr;gap:28px}
  .cards,.grid{grid-template-columns:repeat(2,1fr)}
  .quick-in{grid-template-columns:repeat(2,1fr)}
  .quick-in .quick-cta{grid-column:1/-1;align-items:center;padding:18px}
  .hero-in{padding:64px 20px 70px}
  .sec{padding:60px 0}
}
@media (max-width:520px){
  .cards,.grid{grid-template-columns:1fr}
  .float{width:calc(100% - 24px)}
  .float a{flex:1;text-align:center;padding:14px 10px}
}

/* ===== 아이콘 버튼 · 확대 보기 개선 (2026-10-26) ===== */
html{scrollbar-gutter:stable}
html.lock{overflow:hidden}
html:has(dialog[open]){overflow:hidden}
.dlg{overscroll-behavior:contain}
.ib,.dlg-x,.lb-nav,.hero-ctl button{display:grid;place-items:center;padding:0;line-height:0;cursor:pointer}
.ib svg,.dlg-x svg,.lb-nav svg,.hero-ctl button svg{display:block;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.dlg-x svg{width:18px;height:18px}
.hero-ctl button svg{width:18px;height:18px}
.lb-stage{touch-action:none;cursor:zoom-in}
.lb.zoomed .lb-stage{cursor:grab}
.lb-stage img{transform-origin:50% 50%;-webkit-user-select:none;user-select:none}
.lb-tools{position:absolute;right:12px;top:12px;z-index:3;display:flex;align-items:center;gap:8px}
.lb-tools .ib{width:40px;height:40px;border:0;border-radius:50%;background:rgba(255,255,255,.16);color:#fff}
.lb-tools .ib:hover{background:rgba(255,255,255,.3)}
.lb-tools .ib svg{width:20px;height:20px}
.lb-tools .ib.txt{width:auto;min-width:60px;padding:0 12px;border-radius:99px;font:700 13px/1 inherit;font-variant-numeric:tabular-nums}
.lb-nav{z-index:3;color:#fff}
.lb-nav svg{width:26px;height:26px;stroke-width:2.4}
.lb-tag,.lb-cnt{z-index:3}
@media (max-width:560px){
  .lb-tools{right:8px;top:8px;gap:6px}
  .lb-tools .ib{width:38px;height:38px}
  .lb-tools .ib.txt{min-width:54px}
}


@media (max-width:860px){
  .nav{display:none}
  .top-tel{margin-left:auto}
  .hero-in{padding:64px 20px 110px}
  .wg-grid{grid-template-columns:repeat(2,1fr)}
  .quick-bar{grid-template-columns:1fr;justify-items:center;text-align:center;gap:6px;padding:18px}
  .why,.contact{grid-template-columns:1fr;gap:28px}
  .circles{grid-template-columns:repeat(2,1fr)}
  .fills,.scope-list{grid-template-columns:1fr}
  .steps-list{grid-template-columns:repeat(2,1fr)}
  .grid{grid-template-columns:repeat(2,1fr)}
  .sec{padding:60px 0}
}
@media (max-width:520px){
  .grid,.steps-list{grid-template-columns:1fr}
  .circles{grid-template-columns:1fr 1fr;gap:10px}
  .cir{padding:18px 10px}
  .cir img{width:96px;height:96px}
  .float{width:calc(100% - 24px)}
  .float a{flex:1;text-align:center;padding:14px 10px}
  .pills li{border-radius:28px}
}
/* 아주 좁은 화면(≈320~380px)에서도 머리글이 한 줄·한 격자로 정렬되게 */
.top-tel{white-space:nowrap}
.top-in{min-width:0}
@media (max-width:380px){
  .top-in{gap:10px}
  .brand img{height:30px}
  .top-tel{font-size:13.5px;letter-spacing:0}
  .brand span{font-size:18px}
}