/* (주)서울전자 홈페이지 공통 스타일 */
:root {
  --navy-950: #061528;
  --navy-900: #0a1f3c;
  --navy-800: #0f2d55;
  --navy-700: #16407a;
  --blue-600: #1f63c6;
  --blue-500: #2f7ae5;
  --blue-50: #eef4fd;
  --gold-500: #e3a81c;
  --ink-900: #111827;
  --ink-700: #374151;
  --ink-500: #6b7280;
  --ink-400: #9ca3af;
  --line: #e5e7eb;
  --line-soft: #eef0f3;
  --surface: #ffffff;
  --surface-alt: #f6f8fb;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 2px rgba(10, 31, 60, .06), 0 1px 3px rgba(10, 31, 60, .08);
  --shadow-md: 0 8px 24px rgba(10, 31, 60, .08);
  --shadow-lg: 0 24px 60px rgba(10, 31, 60, .14);
  --wrap: 1200px;
  --header-h: 76px;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { overflow-x: clip; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", "맑은 고딕", sans-serif;
  color: var(--ink-900);
  background: var(--surface);
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: -0.01em;
  word-break: keep-all;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { margin: 0; line-height: 1.3; letter-spacing: -0.03em; color: var(--ink-900); }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
:focus-visible { outline: 3px solid var(--blue-500); outline-offset: 2px; border-radius: 4px; }

.wrap { width: min(var(--wrap), calc(100% - 48px)); margin: 0 auto; }
.skip-link { position: absolute; left: -9999px; top: 0; background: var(--navy-900); color: #fff; padding: 10px 16px; z-index: 1000; }
.skip-link:focus { left: 16px; top: 16px; }

/* ---------- 상단 바 ---------- */
.topbar { background: var(--navy-950); color: #b9c7dc; font-size: 13px; }
.topbar .wrap { display: flex; justify-content: space-between; align-items: center; height: 38px; gap: 16px; }
.topbar a { color: #dbe6f5; }
.topbar a:hover { color: #fff; }
.topbar-links { display: flex; gap: 20px; }
.topbar-tel { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; }

/* ---------- 헤더 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .97);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .2s;
}
.site-header.is-scrolled { box-shadow: 0 6px 20px rgba(10, 31, 60, .08); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); gap: 24px; }

.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-mark { width: 42px; height: 42px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-size: 21px; font-weight: 800; color: var(--navy-900); letter-spacing: -0.04em; }
.brand-sub { font-size: 10.5px; font-weight: 600; color: var(--ink-500); letter-spacing: .14em; margin-top: 3px; }

.gnb { display: flex; align-items: center; height: 100%; }
.gnb > ul { display: flex; height: 100%; }
.gnb-item { position: static; display: flex; align-items: center; }
.gnb-link {
  display: flex; align-items: center; height: var(--header-h); padding: 0 20px;
  font-size: 16px; font-weight: 700; color: var(--ink-900);
  border-bottom: 3px solid transparent; margin-bottom: -1px;
  transition: color .15s, border-color .15s;
}
.gnb-item:hover .gnb-link, .gnb-item:focus-within .gnb-link, .gnb-link.is-active { color: var(--blue-600); border-bottom-color: var(--blue-600); }

.mega {
  position: absolute; left: 0; right: 0; top: 100%;
  background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  box-shadow: 0 24px 40px rgba(10, 31, 60, .10);
  visibility: hidden; opacity: 0; transform: translateY(-6px);
  transition: opacity .18s, transform .18s, visibility .18s;
}
.gnb-item:hover .mega, .gnb-item:focus-within .mega { visibility: visible; opacity: 1; transform: none; }
.mega .wrap { display: grid; grid-template-columns: 260px 1fr; gap: 48px; height: auto; padding: 36px 0 40px; align-items: start; }
.mega-intro h3 { font-size: 22px; margin-bottom: 10px; }
.mega-intro p { color: var(--ink-500); font-size: 14.5px; }
.mega-cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.mega-cols.cols-3 { grid-template-columns: repeat(3, 1fr); }
.mega-col h4 { font-size: 14px; color: var(--blue-600); font-weight: 700; padding-bottom: 10px; margin-bottom: 8px; border-bottom: 1px solid var(--line); }
.mega-col h4 a:hover { text-decoration: underline; }
.mega-col li a { display: block; padding: 6px 0; font-size: 15px; color: var(--ink-700); }
.mega-col li a:hover { color: var(--blue-600); }

.header-actions { display: flex; align-items: center; gap: 10px; }
.menu-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--line); background: #fff; border-radius: 10px; cursor: pointer; align-items: center; justify-content: center; }
.menu-toggle span, .menu-toggle span::before, .menu-toggle span::after { display: block; width: 20px; height: 2px; background: var(--ink-900); position: relative; transition: transform .2s; }
.menu-toggle span::before, .menu-toggle span::after { content: ""; position: absolute; left: 0; }
.menu-toggle span::before { top: -6px; }
.menu-toggle span::after { top: 6px; }

/* ---------- 버튼 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 48px; padding: 0 22px; border-radius: 10px;
  font-size: 15.5px; font-weight: 700; letter-spacing: -0.02em;
  border: 1px solid transparent; cursor: pointer; transition: background .15s, color .15s, border-color .15s, transform .15s;
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; }
.btn-primary { background: var(--blue-600); color: #fff; }
.btn-primary:hover { background: #1853a8; }
.btn-gold { background: var(--gold-500); color: var(--navy-950); }
.btn-gold:hover { background: #f0b52a; }
.btn-ghost-light { border-color: rgba(255, 255, 255, .35); color: #fff; }
.btn-ghost-light:hover { background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .6); }
.btn-outline { border-color: var(--line); color: var(--ink-900); background: #fff; }
.btn-outline:hover { border-color: var(--blue-600); color: var(--blue-600); }
.btn-sm { height: 40px; padding: 0 16px; font-size: 14.5px; border-radius: 9px; }

/* ---------- 공통 섹션 ---------- */
.section { padding: 110px 0; }
.section-alt { background: var(--surface-alt); }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; margin-bottom: 52px; }
.section-head.center { flex-direction: column; align-items: center; text-align: center; }
.eyebrow { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .16em; color: var(--blue-600); text-transform: uppercase; margin-bottom: 14px; }
.section-title { font-size: clamp(28px, 3.4vw, 40px); font-weight: 800; }
.section-desc { color: var(--ink-500); font-size: 17px; margin-top: 14px; max-width: 640px; }
.link-arrow { display: inline-flex; align-items: center; gap: 6px; font-weight: 700; color: var(--blue-600); font-size: 15px; white-space: nowrap; }
.link-arrow svg { width: 16px; height: 16px; transition: transform .15s; }
.link-arrow:hover svg { transform: translateX(3px); }

/* ---------- 메인 비주얼 ---------- */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background: radial-gradient(1200px 600px at 85% -10%, rgba(47, 122, 229, .35), transparent 60%),
              linear-gradient(160deg, var(--navy-900) 0%, var(--navy-950) 70%);
}
.hero::before {
  content: ""; position: absolute; inset: 0; opacity: .5;
  background-image: linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, #000 0%, transparent 85%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 85%);
}
.hero .wrap { position: relative; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 64px; align-items: center; padding: 104px 0 120px; }
.hero-badge { display: inline-flex; align-items: center; gap: 10px; padding: 7px 14px 7px 8px; border-radius: 999px; background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .14); font-size: 13.5px; color: #cfdcf0; font-weight: 600; }
.hero-badge b { background: var(--gold-500); color: var(--navy-950); border-radius: 999px; padding: 2px 10px; font-size: 12px; letter-spacing: .04em; }
.hero h1 { color: #fff; font-size: clamp(36px, 4.6vw, 58px); font-weight: 800; line-height: 1.2; letter-spacing: -0.045em; margin: 26px 0 24px; }
.hero h1 em { font-style: normal; color: #8fc0ff; }
.hero-lead { color: #c3d1e6; font-size: 18px; line-height: 1.75; max-width: 560px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 40px; }

.hero-visual { position: relative; }
.hero-photo { border-radius: var(--radius-lg); overflow: hidden; box-shadow: 0 30px 80px rgba(0, 0, 0, .45); border: 1px solid rgba(255, 255, 255, .12); aspect-ratio: 16 / 11; }
.hero-photo img { width: 100%; height: 100%; object-fit: cover; }
.hero-caption { position: absolute; left: -28px; bottom: -28px; background: #fff; color: var(--ink-900); border-radius: var(--radius); padding: 18px 22px; box-shadow: var(--shadow-lg); display: flex; gap: 14px; align-items: center; max-width: 330px; }
.hero-caption .ic { width: 44px; height: 44px; border-radius: 12px; background: var(--blue-50); color: var(--blue-600); display: grid; place-items: center; flex-shrink: 0; }
.hero-caption .ic svg { width: 22px; height: 22px; }
.hero-caption strong { display: block; font-size: 15px; }
.hero-caption span { font-size: 13px; color: var(--ink-500); }

/* ---------- 신뢰 지표 ---------- */
.proof { position: relative; z-index: 2; margin-top: -56px; }
.proof-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); border: 1px solid var(--line-soft); }
.proof-item { padding: 30px 32px; border-left: 1px solid var(--line-soft); }
.proof-item:first-child { border-left: 0; }
.proof-num { font-size: 32px; font-weight: 800; color: var(--navy-900); letter-spacing: -0.04em; line-height: 1.1; }
.proof-num small { font-size: 18px; font-weight: 700; margin-left: 2px; }
.proof-label { margin-top: 8px; color: var(--ink-500); font-size: 14.5px; }

/* ---------- 사업분야 ---------- */
.biz-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px; }
.biz-card {
  position: relative; display: flex; flex-direction: column; overflow: hidden;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  transition: box-shadow .2s, transform .2s, border-color .2s;
}
.biz-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); border-color: #d5dbe4; }
.biz-card.span-7 { grid-column: span 7; }
.biz-card.span-5 { grid-column: span 5; }
.biz-card.span-4 { grid-column: span 4; }
.biz-media { position: relative; aspect-ratio: 16 / 8; background: var(--surface-alt); overflow: hidden; }
.biz-card.span-5 .biz-media, .biz-card.span-4 .biz-media { aspect-ratio: 16 / 10; }
.biz-media img { width: 100%; height: 100%; object-fit: cover; }
.biz-media.contain img { object-fit: contain; padding: 18px; background: #fff; }
.biz-card.span-7 .biz-media, .biz-card.span-5 .biz-media { aspect-ratio: auto; height: 300px; }
.biz-media.illust { display: grid; place-items: center; background: linear-gradient(150deg, #0f2d55, #0a1f3c); }
.biz-media.illust svg { width: 78%; height: auto; }
.biz-body { padding: 28px 30px 30px; display: flex; flex-direction: column; flex: 1; }
.biz-tag { font-size: 12.5px; font-weight: 700; letter-spacing: .1em; color: var(--blue-600); text-transform: uppercase; }
.biz-body h3 { font-size: 23px; margin: 8px 0 10px; }
.biz-body p { color: var(--ink-500); font-size: 15.5px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.chips li { font-size: 13.5px; font-weight: 600; color: var(--ink-700); background: var(--surface-alt); border: 1px solid var(--line-soft); padding: 4px 11px; border-radius: 999px; }
.biz-more { margin-top: auto; padding-top: 22px; }

/* ---------- 제품 ---------- */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.product-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; transition: box-shadow .2s, border-color .2s; }
.product-card:hover { box-shadow: var(--shadow-md); border-color: #cfd8e5; }
.product-card:hover .product-img img { transform: scale(1.04); }
.product-img { aspect-ratio: 32 / 26; background: #fff; border-bottom: 1px solid var(--line-soft); overflow: hidden; }
.product-img img { width: 100%; height: 100%; object-fit: contain; transition: transform .3s; }
.product-body { padding: 20px 22px 22px; }
.product-cat { font-size: 12.5px; color: var(--ink-400); font-weight: 600; }
.product-body h3 { font-size: 18px; margin: 4px 0 6px; }
.product-body p { font-size: 14.5px; color: var(--ink-500); line-height: 1.6; }

/* ---------- 연혁 & 실적 ---------- */
.track { background: var(--navy-900); color: #fff; position: relative; overflow: hidden; }
.track .section-title { color: #fff; }
.track .section-desc { color: #a9bad3; }
.track .eyebrow { color: #8fc0ff; }
.track-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: start; }
.timeline { position: relative; padding-left: 28px; }
.timeline::before { content: ""; position: absolute; left: 6px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(var(--blue-500), rgba(47, 122, 229, .15)); }
.timeline li { position: relative; padding-bottom: 22px; }
.timeline li::before { content: ""; position: absolute; left: -28px; top: 7px; width: 14px; height: 14px; border-radius: 50%; background: var(--navy-900); border: 3px solid var(--blue-500); }
.timeline li.key::before { background: var(--gold-500); border-color: var(--gold-500); }
.timeline .yr { font-size: 14px; font-weight: 800; color: #8fc0ff; letter-spacing: .02em; }
.timeline .txt { color: #dce6f4; font-size: 16px; margin-top: 2px; }
.track-side h3 { color: #fff; font-size: 20px; margin-bottom: 8px; }
.track-side > p { color: #a9bad3; font-size: 15px; margin-bottom: 24px; }
.cert-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 40px; }
.cert { border: 1px solid rgba(255, 255, 255, .14); background: rgba(255, 255, 255, .04); border-radius: 12px; padding: 18px 16px; }
.cert strong { display: block; font-size: 17px; color: #fff; }
.cert span { font-size: 13px; color: #a9bad3; }
.bank-list { display: flex; flex-wrap: wrap; gap: 8px; }
.bank-list li { font-size: 14px; color: #dce6f4; border: 1px solid rgba(255, 255, 255, .16); border-radius: 999px; padding: 5px 13px; }

/* ---------- 고객사 로고 ---------- */
.clients { padding: 72px 0; border-bottom: 1px solid var(--line-soft); }
.clients-title { text-align: center; color: var(--ink-500); font-size: 15px; font-weight: 600; margin-bottom: 34px; }
.client-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }
.client { flex: 0 0 calc((100% - 14px * 6) / 7); height: 84px; border: 1px solid var(--line-soft); border-radius: 12px; display: grid; place-items: center; padding: 16px 18px; background: #fff; }
.client img { max-height: 34px; width: auto; max-width: 100%; object-fit: contain; filter: grayscale(1); opacity: .72; transition: filter .2s, opacity .2s; }
.client:hover img { filter: none; opacity: 1; }
.client.square img { max-height: 50px; }

/* ---------- 구축 프로세스 ---------- */
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.step { position: relative; padding: 30px 26px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); }
.step-no { font-size: 13px; font-weight: 800; color: var(--blue-600); letter-spacing: .1em; }
.step .ic { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; background: var(--blue-50); color: var(--blue-600); margin: 16px 0 18px; }
.step .ic svg { width: 26px; height: 26px; }
.step h3 { font-size: 19px; margin-bottom: 8px; }
.step p { font-size: 15px; color: var(--ink-500); }
.step:not(:last-child)::after { content: ""; position: absolute; right: -14px; top: 50%; width: 8px; height: 8px; border-top: 2px solid #c3cddb; border-right: 2px solid #c3cddb; transform: translateY(-50%) rotate(45deg); z-index: 1; }

/* ---------- 문의 배너 ---------- */
.cta { padding: 0 0 110px; }
.cta-box {
  position: relative; overflow: hidden; border-radius: 24px; padding: 64px 64px;
  background: radial-gradient(700px 300px at 100% 0%, rgba(47, 122, 229, .5), transparent 60%), var(--navy-900);
  color: #fff; display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: center;
}
.cta-box h2 { color: #fff; font-size: clamp(26px, 3vw, 36px); font-weight: 800; }
.cta-box p { color: #b9c7dc; margin-top: 12px; font-size: 16.5px; }
.cta-contact { display: flex; flex-direction: column; gap: 14px; align-items: flex-end; }
.cta-tel { font-size: 15px; color: #b9c7dc; text-align: right; }
.cta-tel strong { display: block; font-size: 34px; color: #fff; letter-spacing: -0.02em; line-height: 1.2; }
.cta-actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }

/* ---------- 서브 페이지 ---------- */
.page-hero {
  background: linear-gradient(160deg, var(--navy-900), var(--navy-950));
  color: #fff; position: relative; overflow: hidden;
}
.page-hero::before {
  content: ""; position: absolute; inset: 0; opacity: .5;
  background-image: linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 56px 56px;
}
.page-hero .wrap { position: relative; padding: 72px 0 76px; }
.breadcrumb { display: flex; gap: 8px; font-size: 14px; color: #9fb2cd; margin-bottom: 18px; flex-wrap: wrap; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb span[aria-hidden] { color: #5b7090; }
.page-hero h1 { color: #fff; font-size: clamp(32px, 4vw, 46px); font-weight: 800; }
.page-hero p { color: #c3d1e6; font-size: 17.5px; margin-top: 16px; max-width: 720px; }

.subnav { border-bottom: 1px solid var(--line); background: #fff; position: sticky; top: var(--header-h); z-index: 50; }
.subnav ul { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; }
.subnav ul::-webkit-scrollbar { display: none; }
.subnav a { display: block; padding: 16px 18px; font-size: 15px; font-weight: 600; color: var(--ink-500); border-bottom: 2px solid transparent; white-space: nowrap; }
.subnav a:hover { color: var(--ink-900); }
.subnav a.is-active { color: var(--blue-600); border-bottom-color: var(--blue-600); }

.intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.intro-grid .media { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line); background: #fff; }
.intro-points { margin-top: 28px; display: grid; gap: 14px; }
.intro-points li { display: flex; gap: 14px; align-items: flex-start; }
.intro-points .ic { width: 36px; height: 36px; border-radius: 10px; background: var(--blue-50); color: var(--blue-600); display: grid; place-items: center; flex-shrink: 0; }
.intro-points .ic svg { width: 18px; height: 18px; }
.intro-points strong { display: block; font-size: 16.5px; }
.intro-points span { color: var(--ink-500); font-size: 15px; }

.spec-table { width: 100%; border-collapse: collapse; background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); font-size: 15.5px; }
.spec-table th, .spec-table td { padding: 18px 22px; text-align: left; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
.spec-table thead th { background: var(--navy-900); color: #fff; font-weight: 700; font-size: 14.5px; }
.spec-table tbody th { font-weight: 700; color: var(--ink-900); width: 22%; background: #fbfcfd; }
.spec-table td { color: var(--ink-700); }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }
.table-scroll { overflow-x: auto; }

/* ---------- 푸터 ---------- */
.site-footer { background: var(--navy-950); color: #8ea0bb; font-size: 14px; }
.footer-top { display: grid; grid-template-columns: 1.4fr 2fr; gap: 64px; padding: 64px 0 48px; border-bottom: 1px solid rgba(255, 255, 255, .08); }
.footer-brand .brand-name { color: #fff; }
.footer-brand .brand-sub { color: #6f84a3; }
.footer-brand p { margin-top: 20px; line-height: 1.8; max-width: 380px; }
.footer-nav { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.footer-nav h4 { color: #fff; font-size: 15px; margin-bottom: 14px; }
.footer-nav li a { display: block; padding: 4px 0; color: #8ea0bb; }
.footer-nav li a:hover { color: #fff; }
.footer-info { padding: 28px 0 40px; display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; line-height: 1.9; }
.footer-info dl { display: flex; flex-wrap: wrap; gap: 0 22px; margin: 0; }
.footer-info dl div { display: flex; gap: 6px; }
.footer-info dt { color: #6f84a3; }
.footer-info dd { margin: 0; color: #b4c2d6; }
.copyright { color: #6f84a3; }

/* ---------- 반응형 ---------- */
@media (max-width: 1100px) {
  .gnb-link { padding: 0 14px; font-size: 15px; }
  .mega .wrap { grid-template-columns: 1fr; gap: 24px; }
  .mega-intro { display: none; }
  .hero .wrap { gap: 40px; }
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .client { flex-basis: calc((100% - 14px * 4) / 5); }
}

@media (max-width: 960px) {
  :root { --header-h: 64px; }
  .topbar { display: none; }
  .menu-toggle { display: inline-flex; }
  .header-actions .btn { display: none; }
  .gnb {
    position: fixed; inset: var(--header-h) 0 0 0; background: #fff; display: block;
    overflow-y: auto; padding: 8px 24px 40px; height: auto; display: none;
  }
  body.nav-open .gnb { display: block; }
  body.nav-open { overflow: hidden; }
  body.nav-open .menu-toggle span { background: transparent; }
  body.nav-open .menu-toggle span::before { transform: translateY(6px) rotate(45deg); }
  body.nav-open .menu-toggle span::after { transform: translateY(-6px) rotate(-45deg); }
  .gnb > ul { display: block; height: auto; }
  .gnb-item { display: block; border-bottom: 1px solid var(--line); }
  .gnb-link { height: auto; padding: 18px 0; border: 0; font-size: 18px; }
  .gnb-item:hover .gnb-link { border: 0; }
  .mega { position: static; visibility: visible; opacity: 1; transform: none; box-shadow: none; border: 0; display: block; }
  .mega .wrap { width: 100%; padding: 0 0 18px; }
  .mega-cols, .mega-cols.cols-3 { grid-template-columns: 1fr 1fr; gap: 18px; }
  .mega-col h4 { border: 0; padding: 0; margin-bottom: 2px; }
  .mega-col li a { font-size: 14.5px; padding: 4px 0; }

  .section { padding: 80px 0; }
  .section-head { flex-direction: column; align-items: flex-start; margin-bottom: 36px; }
  .hero .wrap { grid-template-columns: minmax(0, 1fr); padding: 72px 0 104px; }
  .hero-caption { left: 16px; bottom: -24px; }
  .proof-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .proof-item:nth-child(3) { border-left: 0; }
  .proof-item:nth-child(n+3) { border-top: 1px solid var(--line-soft); }
  .biz-card.span-7, .biz-card.span-5, .biz-card.span-4 { grid-column: span 12; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .track-grid { grid-template-columns: 1fr; gap: 48px; }
  .process { grid-template-columns: repeat(2, 1fr); }
  .step::after { display: none; }
  .cta-box { grid-template-columns: 1fr; padding: 44px 32px; }
  .cta-contact { align-items: flex-start; }
  .cta-tel { text-align: left; }
  .cta-actions { justify-content: flex-start; }
  .intro-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-top { grid-template-columns: 1fr; gap: 40px; }
  .footer-nav { grid-template-columns: repeat(2, 1fr); }
  .subnav { top: var(--header-h); }
}

@media (max-width: 560px) {
  .wrap { width: calc(100% - 32px); }
  .brand-mark { width: 36px; height: 36px; }
  .brand-name { font-size: 19px; }
  .hero h1 { font-size: 34px; }
  .hero-lead { font-size: 16.5px; }
  .hero-actions .btn { flex: 1 1 100%; }
  .proof-item { padding: 22px 20px; }
  .proof-num { font-size: 26px; }
  .product-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .product-body { padding: 14px 14px 16px; }
  .product-body h3 { font-size: 16px; }
  .product-body p { display: none; }
  .client { flex-basis: calc((100% - 14px) / 2); }
  .process { grid-template-columns: 1fr; }
  .cert-row { grid-template-columns: 1fr; }
  .biz-body { padding: 22px; }
  .spec-table th, .spec-table td { padding: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; scroll-behavior: auto !important; }
}

/* ---------- 라인업 표 · 솔루션 블록 ---------- */
.spec-table.lineup td { font-size: 14.5px; line-height: 1.6; }
.spec-table.lineup tbody th { width: 16%; white-space: nowrap; font-family: ui-monospace, "SFMono-Regular", Consolas, monospace; font-size: 14.5px; letter-spacing: 0; }
.spec-table.lineup td:last-child { width: 1%; white-space: nowrap; }
.link-arrow.sm { font-size: 13.5px; }
.muted { color: var(--ink-400); }
.tabs-note { font-size: 13.5px; color: var(--ink-500); margin-top: 14px; }
.sol-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.sol-grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.sol { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 26px; }
.sol .ic { width: 48px; height: 48px; border-radius: 13px; display: grid; place-items: center; background: var(--blue-50); color: var(--blue-600); margin-bottom: 16px; }
.sol .ic svg { width: 24px; height: 24px; }
.sol h3 { font-size: 19px; margin-bottom: 8px; }
.sol p { color: var(--ink-500); font-size: 15px; }
.sol ul.bullets { margin-top: 14px; display: grid; gap: 6px; }
.sol ul.bullets li { position: relative; padding-left: 16px; font-size: 14.5px; color: var(--ink-700); }
.sol ul.bullets li::before { content: ""; position: absolute; left: 2px; top: 10px; width: 6px; height: 6px; border-radius: 50%; background: var(--blue-500); }
.solution-block { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; align-items: center; padding: 56px 0; border-top: 1px solid var(--line); }
.solution-block:first-of-type { border-top: 0; padding-top: 0; }
.solution-block.reverse .diagram { order: -1; }
.solution-block h3 { font-size: clamp(24px, 2.6vw, 30px); margin: 6px 0 14px; }
.solution-block p { color: var(--ink-500); font-size: 16.5px; }
.diagram { background: linear-gradient(150deg, #0f2d55, #0a1f3c); border-radius: var(--radius-lg); padding: 28px; }
.diagram svg { width: 100%; height: auto; display: block; }
.feature-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 20px; margin-top: 22px; }
.feature-list li { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; color: var(--ink-700); }
.feature-list li svg { width: 18px; height: 18px; color: var(--blue-600); flex-shrink: 0; margin-top: 4px; }
.partner-note { display: flex; gap: 14px; align-items: center; background: var(--blue-50); border: 1px solid #d6e4fa; border-radius: var(--radius); padding: 18px 22px; font-size: 15px; color: var(--ink-700); margin-bottom: 28px; }
.partner-note strong { color: var(--navy-900); }
.lineup-head { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; margin: 44px 0 16px; flex-wrap: wrap; }
.lineup-head:first-child { margin-top: 0; }
.lineup-head h3 { font-size: 21px; }
.lineup-head p { color: var(--ink-500); font-size: 14.5px; }
@media (max-width: 960px) {
  .sol-grid, .sol-grid.cols-2 { grid-template-columns: 1fr; }
  .solution-block { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .solution-block.reverse .diagram { order: 0; }
  .feature-list { grid-template-columns: 1fr; }
}
.detect-chips { margin-top: 0; }
.detect-chips li { background: #fff; border-color: var(--line); font-size: 14px; padding: 7px 14px; }

/* ---------- 제품 상세 블록 ---------- */
.prod { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 56px; padding: 64px 0; border-top: 1px solid var(--line); scroll-margin-top: calc(var(--header-h) + 60px); }
.prod:first-of-type { border-top: 0; padding-top: 8px; }
.prod-media { display: grid; gap: 12px; align-content: start; }
.prod-media .main { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); aspect-ratio: 32 / 26; overflow: hidden; }
.prod-media .main img { width: 100%; height: 100%; object-fit: contain; }
.prod-media .thumbs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.prod-media .thumbs img { border: 1px solid var(--line); border-radius: 10px; background: #fff; aspect-ratio: 32 / 26; object-fit: contain; width: 100%; }
.prod-badge { display: inline-flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.prod-badge span { font-size: 12.5px; font-weight: 700; padding: 4px 10px; border-radius: 6px; background: var(--blue-50); color: var(--blue-600); }
.prod-badge span.own { background: #fdf3dc; color: #8a5a00; }
.prod h2 { font-size: clamp(26px, 2.8vw, 32px); font-weight: 800; }
.prod h2 small { display: block; font-size: 15px; color: var(--ink-500); font-weight: 600; margin-top: 6px; letter-spacing: 0; }
.prod .lead { color: var(--ink-700); font-size: 16.5px; margin: 16px 0 22px; }
.prod .points { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 22px; margin-bottom: 26px; }
.prod .points li strong { display: block; font-size: 15.5px; }
.prod .points li span { font-size: 14.5px; color: var(--ink-500); }
.prod .spec-table { font-size: 14.5px; }
.prod .spec-table th, .prod .spec-table td { padding: 12px 16px; }
.prod-actions { display: flex; gap: 10px; margin-top: 22px; flex-wrap: wrap; }
.gallery { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.gallery figure { margin: 0; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.gallery img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.gallery figcaption { padding: 14px 18px; font-size: 14.5px; color: var(--ink-700); }
.gallery figcaption b { display: block; font-size: 15.5px; color: var(--ink-900); margin-bottom: 2px; }
@media (max-width: 960px) {
  .prod { grid-template-columns: minmax(0, 1fr); gap: 28px; padding: 48px 0; }
  .prod .points { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 회사소개 ---------- */
.vision-quote { font-size: clamp(24px, 3vw, 34px); font-weight: 800; letter-spacing: -0.03em; line-height: 1.4; color: var(--navy-900); }
.vision-quote em { font-style: normal; color: var(--blue-600); }
.values { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.values .sol h3 { display: flex; align-items: center; gap: 10px; }
.values .sol h3 span { font-size: 13px; font-weight: 800; color: var(--gold-500); letter-spacing: .08em; }
.info-table th { width: 180px; }
.map-card { background: var(--surface-alt); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 28px; display: grid; gap: 18px; }
.map-card h3 { font-size: 19px; }
.map-card p { color: var(--ink-700); }
.map-links { display: flex; gap: 10px; flex-wrap: wrap; }
.history-era { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 40px; padding: 48px 0; border-top: 1px solid var(--line); }
.history-era:first-child { border-top: 0; padding-top: 0; }
.history-era h3 { font-size: 30px; font-weight: 800; color: var(--navy-900); letter-spacing: -0.03em; }
.history-era h3 small { display: block; font-size: 15px; color: var(--blue-600); font-weight: 700; margin-top: 6px; letter-spacing: 0; }
.history-era .era-img { margin-top: 20px; border-radius: 12px; border: 1px solid var(--line); overflow: hidden; }
.hist-list li { display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: 16px; padding: 12px 0; border-bottom: 1px dashed var(--line); }
.hist-list li:last-child { border-bottom: 0; }
.hist-list .y { font-weight: 800; color: var(--blue-600); font-size: 15px; }
.hist-list .t { color: var(--ink-700); font-size: 15.5px; }
.hist-list li.key .t { color: var(--ink-900); font-weight: 700; }
.org { display: grid; gap: 28px; justify-items: center; }
.org-ceo { background: var(--navy-900); color: #fff; padding: 16px 36px; border-radius: 12px; font-weight: 800; font-size: 18px; position: relative; }
.org-ceo::after { content: ""; position: absolute; left: 50%; top: 100%; width: 2px; height: 28px; background: #c3cddb; }
.org-groups { width: 100%; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; border-top: 2px solid #c3cddb; padding-top: 28px; }
.org-group h3 { font-size: 14px; color: var(--blue-600); letter-spacing: .06em; margin-bottom: 12px; }
.org-dept { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px; margin-bottom: 12px; }
.org-dept strong { display: block; font-size: 16.5px; margin-bottom: 4px; }
.org-dept span { font-size: 14.5px; color: var(--ink-500); }
.dealer-table td:last-child, .dealer-table th:last-child { white-space: nowrap; }
.case-table td:first-child { font-weight: 700; color: var(--ink-900); }
.notfound { min-height: 60vh; display: grid; place-items: center; text-align: center; padding: 100px 0; }
.notfound .code { font-size: 96px; font-weight: 800; color: var(--blue-50); -webkit-text-stroke: 2px var(--blue-600); line-height: 1; }
@media (max-width: 960px) {
  .values { grid-template-columns: minmax(0, 1fr); }
  .history-era { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .org-groups { grid-template-columns: minmax(0, 1fr); }
  .hist-list li { grid-template-columns: 90px minmax(0, 1fr); }
}

/* ---------- 자료실 ---------- */
.dl-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.dl-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; transition: box-shadow .2s, border-color .2s; }
.dl-card:hover { box-shadow: var(--shadow-md); border-color: #cfd8e5; }
.dl-thumb { aspect-ratio: 3 / 4; background: var(--surface-alt); border-bottom: 1px solid var(--line-soft); overflow: hidden; }
.dl-thumb img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.dl-body { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; }
.dl-body .tag { font-size: 12.5px; color: var(--blue-600); font-weight: 700; }
.dl-body h3 { font-size: 17px; margin: 4px 0 6px; }
.dl-body p { font-size: 14px; color: var(--ink-500); flex: 1; }
.dl-body .meta { font-size: 12.5px; color: var(--ink-400); margin: 10px 0 12px; }
.dl-body .btn { width: 100%; }
@media (max-width: 1100px) { .dl-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 760px) { .dl-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; } .dl-body { padding: 14px; } .dl-body p { display: none; } }
.dealer-table tbody th { width: 20%; }
.dealer-table td:nth-child(2) { width: 38%; }
.dealer-table td:last-child { white-space: normal; font-size: 14px; line-height: 1.8; }
.dealer-table .muted { font-size: 13.5px; }
.chips a { display: block; }

.cert-card .dl-thumb { aspect-ratio: 210 / 297; background: #fff; }
.cert-card .dl-thumb img { object-fit: contain; }
.cert-card .dl-body p { flex: 0; }
.gallery.shots { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.gallery.shots img { aspect-ratio: 36 / 25; object-position: top; }
@media (max-width: 960px) { .gallery.shots { grid-template-columns: minmax(0, 1fr); } }

.sol-grid.fam5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
@media (max-width: 960px) { .sol-grid.fam5 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* gnb6 */
.gnb-link { padding: 0 16px; font-size: 15.5px; }
@media (max-width: 1240px) { .gnb-link { padding: 0 11px; font-size: 14.5px; } .header-actions .btn { display: none; } }
@media (max-width: 1100px) and (min-width: 961px) { .brand-sub { display: none; } }

.biz-card.span-6 { grid-column: span 6; }
.biz-card.span-6 .biz-media { aspect-ratio: 16 / 8; }
@media (max-width: 960px) { .biz-card.span-6 { grid-column: span 12; } }

.gnb-link { padding: 0 13px; font-size: 15px; }
@media (max-width: 1300px) { .gnb-link { padding: 0 9px; font-size: 14px; } .header-actions .btn { display: none; } }

/* feed */
.feed-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feed { background: #fff; border: 1px solid #e3e8f0; border-radius: 14px; padding: 24px 26px; }
.feed-head { display: flex; justify-content: space-between; align-items: center; padding-bottom: 14px; border-bottom: 2px solid #0f2d55; margin-bottom: 6px; }
.feed-head h3 { font-size: 18px; margin: 0; }
.feed-head a { font-size: 13px; color: #5b6b82; }
.feed-list { list-style: none; margin: 0; padding: 0; }
.feed-list li { display: flex; justify-content: space-between; gap: 12px; padding: 11px 0; border-bottom: 1px solid #eef1f6; font-size: 15px; }
.feed-list li:last-child { border-bottom: 0; }
.feed-list a { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: #1b2a41; }
.feed-list a:hover { color: #1f5fbf; }
.feed-list time { flex: none; font-size: 13px; color: #8a97ab; }
.feed-list .feed-empty { color: #8a97ab; justify-content: center; padding: 26px 0; }
@media (max-width: 960px) { .feed-grid { grid-template-columns: 1fr; } }

/* partners */
.partner-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.partner { border: 1px solid #e3e8f0; border-radius: 14px; padding: 30px 28px; background: #fff; display: flex; flex-direction: column; gap: 10px; }
.partner-name { font-size: 22px; font-weight: 800; color: #0f2d55; letter-spacing: -0.02em; }
.partner-name small { font-size: 14px; font-weight: 700; color: #1f5fbf; margin-left: 4px; }
.partner-tag { align-self: flex-start; font-size: 12.5px; font-weight: 700; color: #1f5fbf; background: #eaf2ff; border-radius: 999px; padding: 4px 11px; }
.partner p { color: #4a5a72; font-size: 15px; line-height: 1.7; margin: 4px 0 0; flex: 1; }
@media (max-width: 960px) { .partner-grid { grid-template-columns: 1fr; } }

/* site photos */
.gallery.site { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.gallery.site img { aspect-ratio: 4 / 3; object-position: center; }
@media (max-width: 960px) { .gallery.site { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .gallery.site { grid-template-columns: minmax(0, 1fr); } }