:root{
    --bg:#ffffff;
    --bg-soft:#f3f5f8;
    --ink:#14171c;
    --ink-soft:#565d6b;
    --ink-faint:#8b91a0;
    --brand:#3e5fd6;
    --brand-dark:#2d47ab;
    --silver:#c9cfd8;
    --amber:#e8973d;
    --line:#e2e5ea;
    --maxw:1280px;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:'Pretendard', -apple-system, 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
    color:var(--ink);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
  }
  a{color:inherit;text-decoration:none;}
  ul{list-style:none;margin:0;padding:0;}
  img,svg{display:block;max-width:100%;}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 40px;}
  @media (max-width:720px){.wrap{padding:0 20px;}}

  /* ---------- header ---------- */
  header{
    position:relative;
    z-index:50;
    border-bottom:1px solid var(--line);
    background:var(--bg);
  }
  .header-inner{
    max-width:var(--maxw);
    margin:0 auto;
    padding:0 40px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    height:88px;
  }
  .logo{
    font-size:24px;
    font-weight:800;
    letter-spacing:-0.02em;
  }
  nav.primary{display:flex;height:100%;}
  nav.primary > ul{display:flex;gap:8px;height:100%;}
  nav.primary > ul > li{position:relative;height:100%;display:flex;align-items:center;}
  .nav-link{
    padding:8px 20px;
    font-size:15px;
    font-weight:600;
    display:flex;
    align-items:center;
    height:100%;
    border-bottom:2px solid transparent;
    transition:color .15s ease, border-color .15s ease;
    cursor:pointer;
  }
  nav.primary > ul > li:hover > .nav-link,
  nav.primary > ul > li:focus-within > .nav-link{
    color:var(--brand);
    border-bottom-color:var(--brand);
  }
  .utility{display:flex;gap:28px;align-items:center;}
  .utility a{font-size:14px;font-weight:600;color:var(--ink-soft);}
  .utility a:hover{color:var(--ink);}
  .utility .cta{
    color:var(--bg);
    background:var(--ink);
    padding:9px 18px;
    border-radius:2px;
  }
  .utility .cta:hover{background:var(--brand);}

  /* mega menu panel */
  .submenu-panel{
    position:absolute;
    top:100%;
    left:50%;
    transform:translateX(-50%) translateY(-6px);
    min-width:200px;
    background:var(--bg);
    border:1px solid var(--line);
    border-top:2px solid var(--brand);
    padding:14px 8px;
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    transition:opacity .16s ease, transform .16s ease;
    box-shadow:0 12px 24px rgba(20,23,28,0.08);
  }
  nav.primary > ul > li:hover .submenu-panel,
  nav.primary > ul > li:focus-within .submenu-panel{
    opacity:1;
    visibility:visible;
    pointer-events:auto;
    transform:translateX(-50%) translateY(0);
  }
  .submenu-panel li a{
    display:block;
    padding:10px 18px;
    font-size:14px;
    font-weight:500;
    color:var(--ink-soft);
    white-space:nowrap;
    border-radius:2px;
  }
  .submenu-panel li a:hover{
    color:var(--brand);
    background:var(--bg-soft);
  }

  /* ---------- hero ---------- */
  .hero{
    position:relative;
    height:560px;
    overflow:hidden;
    background:linear-gradient(135deg,#3452c4 0%, #4d6fe0 55%, #6f8ded 100%);
    display:flex;
    align-items:center;
  }
  .hero-facets{
    position:absolute;
    inset:0;
    opacity:.55;
    mix-blend-mode:overlay;
  }
  .hero-content{
    position:relative;
    z-index:2;
    max-width:var(--maxw);
    margin:0 auto;
    padding:0 40px;
    width:100%;
  }
  .hero-eyebrow-mark{
    width:14px;height:36px;background:#0d1524;margin-bottom:22px;
  }
  .hero h1{
    font-size:56px;
    line-height:1.28;
    font-weight:800;
    letter-spacing:-0.02em;
    color:#0d1524;
    max-width:680px;
    margin:0 0 20px;
  }
  .hero p{
    font-size:17px;
    line-height:1.7;
    color:#1b2440;
    max-width:520px;
    font-weight:500;
    margin:0;
  }
  .hero-arrow{
    position:absolute;
    top:50%;
    transform:translateY(-50%);
    width:44px;height:44px;
    display:flex;align-items:center;justify-content:center;
    color:#0d1524;
    background:transparent;
    border:none;
    cursor:pointer;
    font-size:20px;
  }
  .hero-arrow.prev{left:24px;}
  .hero-arrow.next{right:24px;}
  .hero-dots{
    position:absolute;
    bottom:32px;
    left:50%;
    transform:translateX(-50%);
    display:flex;
    gap:10px;
  }
  .hero-dots span{
    width:7px;height:7px;border-radius:50%;
    background:#0d1524;
    opacity:.3;
  }
  .hero-dots span.active{opacity:1;}

  section{padding:104px 0;}
  @media (max-width:860px){section{padding:64px 0;}}

  /* ---------- intro ---------- */
  .intro{
    display:grid;
    grid-template-columns:1.1fr 0.9fr;
    gap:80px;
    align-items:start;
  }
  .intro h2{
    font-size:34px;
    line-height:1.5;
    font-weight:800;
    letter-spacing:-0.01em;
    margin:0;
  }
  .intro .col-right p{
    font-size:16px;
    line-height:1.85;
    color:var(--ink-soft);
    margin:0 0 28px;
  }
  .intro .col-right a{
    font-size:14px;
    font-weight:700;
    color:var(--brand);
    border-bottom:1px solid var(--brand);
    padding-bottom:2px;
  }
  @media (max-width:860px){
    .intro{grid-template-columns:1fr;gap:32px;}
    .intro h2{font-size:26px;}
  }

  /* ---------- business ---------- */
  .business{background:var(--bg-soft);}
  .business-head{margin-bottom:56px;}
  .business-head h2{font-size:30px;font-weight:800;margin:0 0 12px;letter-spacing:-0.01em;}
  .business-head p{font-size:15px;color:var(--ink-soft);margin:0;}
  .business-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:1px;
    background:var(--line);
    border:1px solid var(--line);
  }
  @media (max-width:860px){.business-grid{grid-template-columns:1fr;}}
  .biz-card{
    background:var(--bg);
    padding:48px 44px;
  }
  .biz-card .num{
    font-size:13px;
    font-weight:700;
    color:var(--ink-faint);
    margin-bottom:20px;
    letter-spacing:.02em;
  }
  .biz-card svg{margin-bottom:28px;}
  .biz-card h3{font-size:22px;font-weight:800;margin:0 0 14px;}
  .biz-card p{font-size:15px;line-height:1.8;color:var(--ink-soft);margin:0 0 24px;}
  .biz-card ul{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px;}
  .biz-card ul li{
    font-size:13px;
    font-weight:600;
    color:var(--ink-soft);
    background:var(--bg-soft);
    border:1px solid var(--line);
    padding:6px 12px;
    border-radius:2px;
  }
  .biz-card a{
    font-size:14px;
    font-weight:700;
    color:var(--brand);
    border-bottom:1px solid var(--brand);
    padding-bottom:2px;
  }

  /* ---------- process ---------- */
  .process-head{margin-bottom:56px;}
  .process-head h2{font-size:30px;font-weight:800;margin:0 0 12px;}
  .process-head p{font-size:15px;color:var(--ink-soft);margin:0;}
  .process-row{
    display:grid;
    grid-template-columns:repeat(5,1fr);
    border-top:1px solid var(--ink);
  }
  @media (max-width:860px){.process-row{grid-template-columns:1fr;}}
  .process-step{
    padding:28px 20px 0;
    border-right:1px solid var(--line);
  }
  .process-row .process-step:last-child{border-right:none;}
  @media (max-width:860px){
    .process-step{border-right:none;border-bottom:1px solid var(--line);padding-bottom:24px;}
  }
  .process-step .step-num{
    font-size:13px;
    font-weight:700;
    color:var(--brand);
    margin-bottom:14px;
  }
  .process-step h4{font-size:16px;font-weight:700;margin:0 0 8px;}
  .process-step p{font-size:13.5px;line-height:1.7;color:var(--ink-soft);margin:0;}

  /* ---------- capability ---------- */
  .capability{background:var(--bg-soft);}
  .cap-list{
    display:grid;
    grid-template-columns:repeat(3,1fr);
  }
  @media (max-width:860px){.cap-list{grid-template-columns:1fr;}}
  .cap-item{
    padding:0 40px 0 0;
    border-left:1px solid var(--ink);
    padding-left:24px;
  }
  .cap-item + .cap-item{margin-top:0;}
  @media (max-width:860px){.cap-item{margin-bottom:36px;padding-right:0;}}
  .cap-item h4{font-size:19px;font-weight:800;margin:0 0 12px;}
  .cap-item p{font-size:14.5px;line-height:1.8;color:var(--ink-soft);margin:0;}

  /* ---------- cta ---------- */
  .cta-section{
    background:var(--ink);
    color:#fff;
    padding:96px 0;
  }
  .cta-inner{
    display:flex;
    justify-content:space-between;
    align-items:flex-end;
    gap:40px;
    flex-wrap:wrap;
  }
  .cta-inner h2{font-size:32px;font-weight:800;line-height:1.5;margin:0;max-width:520px;}
  .cta-inner .btn{
    background:var(--brand);
    color:#fff;
    font-size:15px;
    font-weight:700;
    padding:16px 32px;
    border-radius:2px;
    white-space:nowrap;
  }
  .cta-inner .btn:hover{background:var(--brand-dark);}

  /* ---------- footer ---------- */
  footer{padding:56px 0;border-top:1px solid var(--line);}
  .footer-inner{
    display:flex;
    justify-content:space-between;
    gap:40px;
    flex-wrap:wrap;
  }
  .footer-inner .f-logo{font-size:18px;font-weight:800;margin-bottom:14px;}
  .footer-inner .f-addr{font-size:13.5px;line-height:1.9;color:var(--ink-faint);}
  .footer-links{display:flex;gap:36px;flex-wrap:wrap;}
  .footer-links ul{display:flex;flex-direction:column;gap:10px;}
  .footer-links li a{font-size:13.5px;color:var(--ink-soft);}
  .footer-links li a:hover{color:var(--brand);}
  .footer-links .f-head{font-size:12.5px;font-weight:700;color:var(--ink-faint);margin-bottom:6px;}

  @media (max-width:720px){
    .header-inner{flex-wrap:wrap;height:auto;padding:16px 20px;gap:12px;}
    nav.primary{order:3;width:100%;}
    nav.primary > ul{width:100%;justify-content:space-between;}
    .utility{order:2;}
    .hero{height:auto;padding:64px 0;}
    .hero h1{font-size:32px;}
  }

/* ---------- sub page hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:64px 0 48px;
  background:linear-gradient(135deg,#3452c4 0%, #4d6fe0 55%, #6f8ded 100%);
}
.page-hero .hero-facets{position:absolute;inset:0;opacity:.5;mix-blend-mode:overlay;}
.page-hero .wrap{position:relative;z-index:2;}
.breadcrumb{font-size:13px;font-weight:600;color:#1b2440;margin-bottom:16px;}
.breadcrumb a{color:#1b2440;opacity:.7;}
.breadcrumb a:hover{opacity:1;}
.breadcrumb .sep{margin:0 8px;opacity:.5;}
.page-hero h1{font-size:38px;font-weight:800;letter-spacing:-0.02em;color:#0d1524;margin:0 0 10px;}
.page-hero .lead{font-size:16px;color:#1b2440;font-weight:500;max-width:560px;margin:0;}

/* current nav indicator */
nav.primary > ul > li > .nav-link.current,
.nav-link.current{color:var(--brand);}

/* ---------- content basics ---------- */
.content-block{max-width:760px;}
.content-block p{font-size:16px;line-height:1.9;color:var(--ink-soft);margin:0 0 20px;}
.content-block h2{font-size:26px;font-weight:800;margin:0 0 20px;letter-spacing:-0.01em;}

.split-2{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start;}
@media (max-width:860px){.split-2{grid-template-columns:1fr;gap:32px;}}

/* ---------- generic info grid ---------- */
.info-grid{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);}
.info-grid.cols-3{grid-template-columns:repeat(3,1fr);}
.info-grid.cols-4{grid-template-columns:repeat(4,1fr);}
@media (max-width:860px){.info-grid.cols-3,.info-grid.cols-4{grid-template-columns:1fr;}}
.info-cell{background:var(--bg);padding:36px 32px;}
.info-cell h4{font-size:17px;font-weight:800;margin:0 0 10px;}
.info-cell p{font-size:14px;line-height:1.8;color:var(--ink-soft);margin:0;}

/* ---------- timeline (연혁) ---------- */
.timeline{border-left:1px solid var(--line);max-width:640px;margin-left:6px;}
.timeline-item{position:relative;padding:0 0 40px 32px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:'';position:absolute;left:-5px;top:4px;
  width:9px;height:9px;border-radius:50%;background:var(--brand);
}
.timeline-item .year{font-size:14px;font-weight:800;color:var(--brand);margin-bottom:6px;}
.timeline-item h4{font-size:16px;font-weight:700;margin:0 0 6px;}
.timeline-item p{font-size:14px;line-height:1.8;color:var(--ink-soft);margin:0;}

/* ---------- spec table ---------- */
.spec-table{width:100%;border-collapse:collapse;font-size:14.5px;}
.spec-table th,.spec-table td{
  text-align:left;padding:14px 18px;border-bottom:1px solid var(--line);
}
.spec-table th{
  width:160px;color:var(--ink-faint);font-weight:600;background:var(--bg-soft);
}
.spec-table td{color:var(--ink-soft);}

/* ---------- application tags ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0;}
.tag-row span{
  font-size:13px;font-weight:600;color:var(--ink-soft);
  background:var(--bg-soft);border:1px solid var(--line);
  padding:7px 14px;border-radius:2px;
}

/* ---------- map / location ---------- */
.map-box{
  border:1px solid var(--line);
  aspect-ratio:16/8;
  overflow:hidden;
  background:var(--bg-soft);
}
.map-box iframe{width:100%;height:100%;border:0;display:block;}
.location-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start;margin-top:48px;}
@media (max-width:860px){.location-grid{grid-template-columns:1fr;gap:32px;}}
.info-list{border-top:1px solid var(--ink);}
.info-list-row{
  display:grid;grid-template-columns:120px 1fr;gap:16px;
  padding:18px 0;border-bottom:1px solid var(--line);
}
.info-list-row dt{font-size:13.5px;font-weight:700;color:var(--ink-faint);}
.info-list-row dd{font-size:14.5px;color:var(--ink-soft);margin:0;line-height:1.8;}

/* ---------- form (견적요청) ---------- */
.quote-layout{display:grid;grid-template-columns:0.8fr 1.2fr;gap:72px;align-items:start;}
@media (max-width:860px){.quote-layout{grid-template-columns:1fr;gap:40px;}}
.quote-note h3{font-size:18px;font-weight:800;margin:0 0 12px;}
.quote-note p{font-size:14.5px;line-height:1.85;color:var(--ink-soft);margin:0 0 28px;}
.quote-note .info-list-row dt{width:auto;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px 20px;}
.form-field{display:flex;flex-direction:column;gap:8px;}
.form-field.full{grid-column:1/-1;}
.form-field label{font-size:13.5px;font-weight:700;color:var(--ink);}
.form-field input,.form-field select,.form-field textarea{
  border:none;border-bottom:1px solid var(--line);
  background:transparent;
  font-family:inherit;font-size:14.5px;color:var(--ink);
  padding:10px 2px;
  transition:border-color .15s ease;
}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none;border-bottom-color:var(--brand);
}
.form-field textarea{resize:vertical;min-height:120px;}
.form-submit{
  margin-top:8px;
  background:var(--ink);
  color:#fff;
  font-size:15px;font-weight:700;
  padding:15px 30px;
  border:none;border-radius:2px;
  cursor:pointer;
}
.form-submit:hover{background:var(--brand);}

/* ---------- process flow (견적요청 진행 절차) ---------- */
.flow{max-width:760px;}
.flow-step{
  display:grid;grid-template-columns:64px 1fr;gap:24px;
  padding:36px 0;border-top:1px solid var(--line);
}
.flow-step:first-child{border-top:1px solid var(--ink);}
.flow-num{font-size:20px;font-weight:800;color:var(--brand);}
.flow-step h3{font-size:19px;font-weight:800;margin:0 0 10px;}
.flow-step .desc{font-size:15px;line-height:1.85;color:var(--ink-soft);margin:0 0 18px;}
.flow-options{display:flex;flex-direction:column;gap:10px;}
.flow-option{border:1px solid var(--line);padding:14px 18px;border-radius:2px;}
.flow-option .opt-label{font-size:13.5px;font-weight:700;color:var(--ink);margin-bottom:4px;}
.flow-option .opt-desc{font-size:13.5px;color:var(--ink-soft);line-height:1.7;}
@media (max-width:640px){
  .flow-step{grid-template-columns:1fr;gap:10px;}
}

/* ---------- contact form: submit result ---------- */
.form-result{
  display:none;
  margin-top:16px;
  font-size:14px;
  font-weight:600;
  padding:12px 16px;
  border-radius:2px;
}
.form-result.show{display:block;}
.form-result.success{background:#e9f3ec;color:#1f7a41;}
.form-result.error{background:#fbecec;color:#b3311c;}