/* ============================================================
   KEMP 하위 페이지 공통 스타일 (style.css 다음에 로드)
   ============================================================ */

/* 공통 토큰: 여백 리듬(4단 clamp) + 서브히어로 오버레이 (--font 구조와 무관한 신규 변수만 추가) */
:root {
  --sp-m: clamp(28px, 3vw, 40px);
  --sp-l: clamp(44px, 5vw, 60px);
  --sp-xl: clamp(64px, 8vw, 104px);
  --sp-2xl: clamp(88px, 10vw, 128px);
  --hero-overlay: var(--scrim); /* 스크림 단일화: style.css --scrim 기반 */
  /* 소형(553px) 스튜디오 컷용: 좌측 다크 → 우측 투명 페이드 (사진 좌측 경계선 은폐) */
  --hero-fade: linear-gradient(100deg, #101318 0%, #101318 48%, rgba(16,19,24,.55) 70%, rgba(16,19,24,0) 100%);
}

/* 하위 페이지에서는 헤더가 항상 어두운 배경 (반투명+블러) */
body.subpage-body .site-header {
  background: rgba(16,19,24,.78);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
  backdrop-filter: blur(14px) saturate(150%);
  box-shadow: inset 0 -1px 0 rgba(255,255,255,.07);
}
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  body.subpage-body .site-header { background: rgba(16,19,24,.92); }
}

/* ---------- 서브 히어로 배너 ---------- */
.sub-hero {
  position: relative;
  /* 와이드 화면일수록 높게 — 배경 사진이 얇은 띠로 잘려 보이는 것 방지 */
  height: clamp(340px, 24vw, 480px);
  display: flex;
  flex-direction: column;
  align-items: flex-start; /* 정렬 축 좌측 전환 — 우측 사진 배치 그룹과 궁합 */
  justify-content: center;
  text-align: left;
  color: #fff;
  background: var(--hero-overlay) center/cover no-repeat;
  padding: var(--header-h) clamp(24px, 6vw, 80px) 0;
}
.sub-hero h1,
.sub-hero .section-heading { margin: 0; font-family: var(--font-display); font-size: clamp(28px, 2.2vw + 12px, 44px); font-weight: 700; letter-spacing: -0.02em; }
/* h1 위 골드 틱 */
.sub-hero h1::before,
.sub-hero .section-heading::before {
  content: '';
  display: block;
  width: 36px; height: 3px;
  background: var(--gold-400);
  border-radius: 2px;
  margin: 0 0 18px; /* 좌측 정렬 */
}
/* 브레드크럼: 필 캡슐 제거 → 플레인 모노 텍스트 + ' / ' 구분 */
.sub-hero .crumb {
  display: inline-flex;
  align-items: center;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: rgba(255,255,255,.8);
}
.sub-hero .crumb a { transition: color .2s ease; }
.sub-hero .crumb a:hover { color: var(--accent); }
/* 기존 '›' 글리프는 font-size 0으로 숨기고 '/'로 교체 */
.sub-hero .crumb span { margin: 0 10px; color: rgba(255,255,255,.45); font-size: 0; }
.sub-hero .crumb span::before { content: '/'; font-size: 12px; }

/* 표준 서브 히어로: 영문 분류 → 제목 → 한 문장 설명 → 경로 */
.sub-hero.standardized h1::before,
.sub-hero.standardized .section-heading::before { display: none; }
.sub-hero.standardized {
  gap: 0;
}
.sub-hero-label {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--gold-300);
}
.sub-hero-label::before {
  content: '';
  width: 26px;
  height: 2px;
  background: currentColor;
}
.sub-hero-summary {
  max-width: 660px;
  margin-top: 14px;
  color: rgba(255,255,255,.82);
  font-size: clamp(14px, .35vw + 12px, 16px);
  line-height: 1.7;
}
.sub-hero.standardized .crumb { margin-top: 18px; }

/* Innozinc 계열 페이지: h1 위 옐로우 틱 대신 Innozinc 화이트 로고 */
.sub-hero.innozinc h1::before,
.sub-hero.innozinc .section-heading::before {
  width: clamp(150px, 15vw, 210px);
  height: clamp(35px, 3.5vw, 49px);
  background: url('../img/design/innozinc_logo_w.png') center/contain no-repeat;
  border-radius: 0;
  margin-bottom: 20px;
}

/* ELPANG 계열 페이지: h1 위 ELPANG 화이트 워드마크 (원본 663x87 비율) */
.sub-hero.elpang h1::before,
.sub-hero.elpang .section-heading::before {
  width: clamp(170px, 16vw, 240px);
  height: clamp(22px, 2.1vw, 31px);
  background: url('../img/logos/elpang_w.png') left center/contain no-repeat;
  border-radius: 0;
  margin-bottom: 20px;
}

/* 메뉴 그룹별 배너 배경 (오버레이는 --hero-overlay 변수 한 곳에서 관리)
   - company : sub 컷 중 유일한 고해상(1360px) 기어 매크로 — 풀블리드 cover (엔지니어링 신뢰감)
   - innozinc: 브랜드 사진(main_bg_2) 유지
   - solution/market/service/contact: 원본 553px 스튜디오 컷 — cover 업스케일 흐림 방지를 위해
     다크 그라디언트(--hero-fade) 위에 사진을 우측에만 원본비율(auto 100%)로 배치 */
.sub-hero.company  {
  background-image: var(--hero-overlay), url('../img/sub/sub_4_3_1_7.png');
  background-position: center, center 30%; /* 기어가 상단 2/3에 몰려 있어 위쪽 크롭 우선 */
}
.sub-hero.innozinc, .sub-hero.elpang { background-image: var(--hero-overlay), url('../img/design/main_bg_2_v20260903.webp'); }
/* 풀블리드 2레이어 그룹: 스틸 컬러 위 luminosity 블렌드 (오버레이 레이어는 normal) */
.sub-hero.company, .sub-hero.innozinc, .sub-hero.elpang {
  background-color: var(--n-950);
  background-blend-mode: normal, luminosity;
}

/* 우측 사진 3레이어 그룹 (오버레이 / 페이드 / 사진) */
.sub-hero.solution { background-image: var(--hero-overlay), var(--hero-fade), url('../img/sub/sub_4_3_2_0.png');  } /* 아연 결정 표면 질감 매크로 */
.sub-hero.market   { background-image: var(--hero-overlay), var(--hero-fade), url('../img/sub/sub_4_3_2_4.png');  } /* 다양한 볼트·너트 무더기 */
.sub-hero.service  { background-image: var(--hero-overlay), var(--hero-fade), url('../img/sub/sub_4_3_3_4.png');  } /* 정밀 가공 브레이크 디스크 */
.sub-hero.contact  { background-image: var(--hero-overlay), var(--hero-fade), url('../img/sub/sub_4_3_5_11.png'); } /* 차분한 익스팬디드 메탈 */
.sub-hero.solution, .sub-hero.market, .sub-hero.service, .sub-hero.contact {
  background-color: var(--n-950);
  background-size: cover, cover, auto 100%;          /* 사진은 히어로 높이에 맞춰 원본비율 유지 */
  background-position: center, center, right center; /* 사진은 우측 정렬 (히어로 340~480px 기준 우측 ~40%) */
  background-repeat: no-repeat;
  background-blend-mode: normal, normal, luminosity; /* 사진 레이어만 스틸 그레이딩 */
}

/* ---------- 본문 컨테이너 (여백은 --sp 토큰 리듬) ---------- */
.sub-content { max-width: 1200px; margin: 0 auto; padding: var(--sp-xl) clamp(20px, 4vw, 28px) var(--sp-2xl); }
.sub-content section + section { margin-top: var(--sp-xl); }

.sub-content h2, .band-dark h2 {
  font-size: clamp(23px, 1.1vw + 18px, 34px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
  max-width: 880px;
  color: var(--dark);
}
.sub-content h3, .band-dark h3 { font-size: clamp(18px, 0.4vw + 15px, 20px); font-weight: 700; margin-bottom: 14px; color: var(--dark); }
.sub-content p.lead, .band-dark p.lead {
  font-size: 17px;
  line-height: 1.85;
  letter-spacing: -0.012em;
  max-width: 800px; /* measure 교정: 전폭 흐름 방지 */
  color: var(--n-600);
  margin-top: 20px;
}
.sub-content p, .band-dark p { line-height: 1.8; color: var(--n-600); }

/* 섹션 라벨(골드 포인트): 작게+넓은 자간+골드 대시 */
.sub-label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--gold-700);
  letter-spacing: .04em; /* 모노는 0~.04em */
  text-transform: uppercase;
  margin-bottom: 14px;
}
.sub-label::before {
  content: '';
  width: 26px; height: 2px;
  background: var(--gold-500);
  flex: none;
}

/* 좌우 2단 (텍스트+이미지) */
.split { display: flex; gap: 60px; align-items: center; }
.split > div { flex: 1; }
.split img { border-radius: 10px; width: 100%; }
.split.reverse { flex-direction: row-reverse; }

/* 카드 그리드: 흰 배경+헤어라인+레이어드 섀도, 호버 시 리프트+상단 골드 라인 드로우 */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: var(--sp-m); }
.card-grid.cols2 { grid-template-columns: repeat(2, 1fr); }
.card-grid.cols4 { grid-template-columns: repeat(4, 1fr); }
.card {
  position: relative;
  background: #fff;
  border: 1px solid var(--n-100);
  border-radius: 4px; /* 지오메트리 경화 */
  padding: clamp(24px, 2.6vw, 34px) clamp(20px, 2.2vw, 28px);
  overflow: hidden;
  box-shadow: none; /* 기본 상태는 헤어라인 보더 중심 (호버 리프트는 유지) */
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gold-500);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .28s ease;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--n-200);
  box-shadow: 0 2px 4px rgba(16,19,24,.04), 0 18px 34px -10px rgba(16,19,24,.14);
}
.card:hover::before { transform: scaleX(1); }
.card h3 { font-size: 17px; line-height: 1.4; }
/* 수치 문법 단일화: 숫자는 다크, 골드는 숫자 위 틱으로만 (stat-band와 동일 문법) */
.card .num { font-family: var(--font-mono); font-size: 40px; font-weight: 600; color: var(--n-950); line-height: 1; letter-spacing: 0; }
.card .num::before {
  content: '';
  display: block;
  width: 26px; height: 3px;
  background: var(--gold-500);
  border-radius: 2px;
  margin-bottom: 14px;
}
.card p { font-size: 14.5px; margin-top: 10px; }
.card img { border-radius: 8px; margin-bottom: 16px; }
/* 제품 브랜드 로고 워드마크: 제품명 h3 안에서 텍스트를 대체 (접근성 명칭은 alt로 유지) */
img.prod-logo { height: 28px; width: auto; margin-bottom: 12px; display: block; border-radius: 0; }

/* 수치 강조 밴드: 밝은 카드 톤 — 숫자는 다크, 골드는 항목 위 작은 틱으로만 */
.stat-band {
  background: var(--n-50);
  border: 1px solid var(--n-100);
  border-radius: 4px; /* 지오메트리 경화 */
  color: var(--dark);
  display: flex;
  justify-content: space-around;
  text-align: left; /* 정렬 축 좌측 전환 */
  padding: var(--sp-l) 24px;
  margin-top: var(--sp-l);
  flex-wrap: wrap;
  gap: 30px;
  box-shadow: none; /* 헤어라인 보더 중심 */
}
.stat-band > div { flex: 1 1 0; min-width: 200px; padding: 0 16px; }
.stat-band > div::before {
  content: '';
  display: block;
  width: 26px; height: 3px;
  background: var(--gold-500);
  border-radius: 2px;
  margin: 0 0 16px; /* 항목 틱 좌측 정렬 */
}
.stat-band > div + div { border-left: 1px solid var(--n-200); }
.stat-band .num {
  font-family: var(--font-mono);
  font-size: clamp(34px, 2vw + 16px, 46px);
  font-weight: 600;
  color: var(--dark);
  line-height: 1.05;
  letter-spacing: 0; /* 모노 자간 정리 */
  font-variant-numeric: tabular-nums;
}
.stat-band .cap { font-size: 13.5px; color: var(--n-500); line-height: 1.55; max-width: 250px; margin: 10px 0 0; }

/* 표: 라운드 컨테이너+세로 셀 보더 제거+숫자 등폭, 헤더는 뉴트럴 헤어라인 마감 */
.sub-content table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--n-200);
  border-radius: 4px; /* 지오메트리 경화 */
  overflow: hidden;
  margin-top: var(--sp-m);
  font-size: 14.5px;
  font-variant-numeric: tabular-nums;
}
.sub-content th {
  background: var(--dark);
  color: #fff;
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: .04em; /* 모노는 0~.04em */
  text-align: center;
  border-bottom: 1px solid rgba(255,255,255,.25);
}
.sub-content th + th { border-left: 1px solid rgba(255,255,255,.12); }
.sub-content td {
  border: 0;
  border-bottom: 1px solid var(--n-100);
  padding: 13px 16px;
  line-height: 1.6;
  color: var(--n-600);
  text-align: center;
}
.sub-content td + td { border-left: 1px solid var(--n-50); }
.sub-content tr:last-child td { border-bottom: 0; }
.sub-content tbody td:first-child { font-weight: 700; color: var(--dark); }
.sub-content tr:nth-child(even) td { background: var(--n-50); }
.sub-content tbody tr:hover td { background: var(--gold-tint); } /* 골드 틴트 hover (지브라보다 특이도 높음) */

/* 타임라인 (회사연혁): 축은 중립색으로 낮추고 골드는 도트에 집중 (글로우 없음) */
.timeline {
  margin-top: var(--sp-l);
  border-left: 2px solid var(--n-100);
  border-image: linear-gradient(180deg, var(--n-100) 0%, var(--n-100) 78%, rgba(235,238,243,0) 100%) 1 100%;
  padding-left: 40px;
}
.timeline .year { position: relative; padding-bottom: var(--sp-l); }
.timeline .year::before {
  content: '';
  position: absolute; left: -49px; top: 4px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--gold-500);
  border: 2px solid #fff;
  box-shadow: 0 0 0 2px var(--gold-500);
}
.timeline h3 {
  font-size: 26px;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
  color: var(--dark);
  font-variant-numeric: tabular-nums;
}
.timeline li { color: var(--n-600); line-height: 1.85; font-size: 15px; max-width: 720px; list-style: none; }

/* 인증서 그리드: 카드와 같은 리프트 문법 */
.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: var(--sp-m); }
.cert-grid figure { text-align: center; }
.cert-grid img {
  border: 1px solid var(--n-100);
  border-radius: 6px;
  background: #fff;
  padding: 8px;
  box-shadow: 0 1px 3px rgba(16,19,24,.05);
  transition: transform .25s ease, box-shadow .25s ease;
}
.cert-grid figure:hover img {
  transform: translateY(-4px);
  box-shadow: 0 12px 26px -8px rgba(16,19,24,.18);
}
.cert-grid figcaption { font-size: 13px; color: var(--n-500); margin-top: 10px; line-height: 1.5; transition: color .2s ease; }
.cert-grid figure:hover figcaption { color: var(--dark); }

/* 뉴스 목록 */
.news-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: var(--sp-m); }
.news-list .news-card { flex: none; }

/* 뉴스 상세 */
.article-body { max-width: 800px; margin: 0 auto; }
.article-body h1 { font-size: clamp(24px, 1vw + 17px, 31px); line-height: 1.4; color: var(--dark); }
.article-body .meta { font-family: var(--font-mono); color: var(--n-400); font-size: 14px; letter-spacing: .02em; margin: 16px 0 40px; padding-bottom: 24px; border-bottom: 1px solid var(--n-100); }
.article-body p { margin-bottom: 18px; font-size: 16px; line-height: 1.85; }
.article-body img { border-radius: 8px; margin: 20px 0; }

/* 문의 폼 */
.contact-form { max-width: 720px; margin: 40px auto 0; display: grid; gap: 18px; }
.contact-form label { font-weight: 700; font-size: 14.5px; color: var(--dark); }
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--n-200);
  border-radius: 8px;
  background: #fcfdfe;
  font-family: var(--font);
  font-size: 15px;
  margin-top: 6px;
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.contact-form input:hover, .contact-form select:hover, .contact-form textarea:hover { border-color: var(--n-300); }
/* 포커스 문법: 다크 보더 + 딥골드 소프트 링 */
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus {
  outline: none;
  border-color: var(--dark);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(199,160,8,.4);
}
.contact-form ::placeholder { color: var(--n-300); }
.contact-form textarea { min-height: 160px; resize: vertical; }
.contact-form button {
  padding: 16px;
  background: var(--gold-500);
  color: var(--n-950);
  border: 0;
  border-radius: 2px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: .3s;
  box-shadow: 0 6px 16px -6px rgba(199,160,8,.45);
}
.contact-form button:hover { background: var(--dark); color: #fff; box-shadow: 0 10px 22px -8px rgba(16,19,24,.35); }
.contact-form button:focus-visible { outline: 2px solid var(--dark); outline-offset: 3px; }

/* CTA 밴드: 사이트에서 유일하게 골드를 큰 면으로 쓰는 곳 (골드 솔리드 + 다크 타이포) */
.cta-band {
  position: relative;
  background: var(--gold-500);
  border-radius: 4px;
  text-align: center; /* 사이트 유일의 의도된 중앙정렬 예외 */
  color: var(--n-950);
  padding: 70px 30px;
  margin-top: var(--sp-xl);
  box-shadow: 0 24px 48px -20px rgba(16,19,24,.25);
}
.cta-band h2 { color: var(--n-950); max-width: none; }
.cta-band p { color: rgba(16,19,24,.75); margin-top: 12px; }
.cta-band .btn-row { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; }
.cta-band .btn-row .btn-pill { margin-top: 28px; }
/* 골드 면 위 버튼: 다크 보더·다크 텍스트, hover 시 다크 채움+골드 텍스트 */
.cta-band .btn-pill { border-color: var(--n-950); color: var(--n-950); }
.cta-band .btn-pill::before { background: var(--n-950); }
.cta-band .btn-pill:hover { border-color: var(--n-950); color: var(--gold-400); }
.cta-band .btn-pill.dark { border-color: var(--n-950); color: var(--n-950); }
.cta-band .btn-pill.dark:hover { color: var(--gold-400); }

/* 공통 다음 단계 CTA: 모든 대표 페이지에서 동일한 세 경로 제공 */
.cta-band.platform-cta h2 { font-size: clamp(26px, 1.5vw + 18px, 38px); }
.cta-band.platform-cta .btn-row { margin-top: 28px; }
.cta-band.platform-cta .btn-row .btn-pill { min-width: 174px; margin-top: 0; }
.cta-band.platform-cta .btn-pill.primary {
  background: var(--n-950);
  color: var(--gold-300);
}
.cta-band.platform-cta .btn-pill.primary::before { display: none; }
.cta-band.platform-cta .btn-pill.primary:hover { background: var(--n-900); color: #fff; }

/* Innozinc 도막 단면 구조 — 카탈로그의 상도층/무기피막/아연입자/모재 구성을 CSS로 재현 */
.coating-cross-section {
  margin: 24px 0 0;
  overflow: hidden;
  border: 1px solid var(--n-200);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 24px 60px rgba(16,19,24,.08);
}
.coating-figure-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  padding: 25px 28px 23px;
  background: linear-gradient(110deg, #101318 0%, #1b222d 72%, #24303d 100%);
}
.coating-kicker,
.coating-source,
.insight-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .09em;
}
.coating-kicker { color: var(--gold-400); }
.coating-figure-head h4 {
  margin-top: 7px;
  color: #fff;
  font-family: var(--font-display);
  font-size: clamp(20px, 1vw + 16px, 27px);
  line-height: 1.25;
}
.coating-source {
  flex: 0 0 auto;
  padding: 8px 11px;
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 999px;
  color: var(--n-300);
}
.coating-figure-grid {
  display: grid;
  grid-template-columns: 178px minmax(360px, 1fr) 224px;
  gap: 24px;
  align-items: center;
  padding: 30px 28px;
  background:
    linear-gradient(135deg, rgba(244,246,249,.85), rgba(255,255,255,.92)),
    repeating-linear-gradient(90deg, transparent 0 39px, rgba(16,19,24,.025) 40px);
}
.coating-legend {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.coating-legend li {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 10px;
  align-items: center;
  min-height: 62px;
  padding: 10px 10px 10px 0;
  border-bottom: 1px solid var(--n-200);
}
.coating-legend li:last-child { border-bottom: 0; }
.coating-legend li > span {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  color: #fff;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
}
.coating-legend .topcoat > span { background: #f05a28; }
.coating-legend .ceramic > span { background: #1551d0; }
.coating-legend .zinc > span { background: #687584; }
.coating-legend .substrate > span { background: #2f3741; }
.coating-legend strong,
.coating-legend small { display: block; }
.coating-legend strong { color: var(--n-900); font-size: 14px; line-height: 1.35; }
.coating-legend small { margin-top: 3px; color: var(--n-500); font-size: 11px; line-height: 1.35; }
.coating-model {
  position: relative;
  min-height: 330px;
  overflow: hidden;
  border: 1px solid #c7ced8;
  border-radius: 14px;
  background: #1a4bc3;
  box-shadow: inset 0 0 0 5px rgba(255,255,255,.52), 0 14px 30px rgba(16,19,24,.12);
  isolation: isolate;
}
.layer-substrate,
.layer-zinc,
.layer-ceramic,
.layer-topcoat { position: absolute; left: 0; width: 100%; }
.layer-substrate {
  z-index: 1;
  right: 0;
  bottom: 0;
  height: 39%;
  background:
    linear-gradient(115deg, transparent 0 22%, rgba(255,255,255,.12) 23% 25%, transparent 26% 49%, rgba(14,19,25,.18) 50% 53%, transparent 54% 100%),
    repeating-linear-gradient(12deg, #606a75 0 4px, #505a66 4px 7px, #737d88 7px 9px);
  border-top: 3px solid #27313c;
}
.layer-substrate span {
  position: absolute;
  right: 16px;
  bottom: 14px;
  padding: 5px 8px;
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 4px;
  color: rgba(255,255,255,.8);
  background: rgba(16,19,24,.34);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .08em;
}
.layer-zinc {
  z-index: 2;
  top: 26%;
  bottom: 37%;
  background-color: #174fc8;
  background-image:
    radial-gradient(circle at 12px 12px, #fff 0 5px, #dfe4ea 6px, #939eaa 9px, #3d4753 11px, transparent 12px),
    radial-gradient(circle at 34px 32px, #fff 0 5px, #dfe4ea 6px, #939eaa 9px, #3d4753 11px, transparent 12px);
  background-size: 44px 40px;
  box-shadow: inset 0 -5px 0 rgba(9,47,142,.8);
}
.layer-ceramic,
.layer-topcoat {
  top: 0;
}
.layer-ceramic::after,
.layer-topcoat::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -23px;
  left: 0;
  height: 24px;
}
.layer-ceramic {
  z-index: 3;
  height: 30%;
  background: #104bc9;
}
.layer-ceramic::after {
  background: radial-gradient(ellipse at 50% 0, #104bc9 0 69%, transparent 71%) 0 0 / 52px 24px repeat-x;
}
.layer-topcoat {
  z-index: 4;
  height: 26%;
  background:
    linear-gradient(180deg, rgba(255,255,255,.18), transparent 32%),
    linear-gradient(110deg, #f36b2d, #ed3f20 72%, #d92d19);
  box-shadow: inset 0 -1px 0 rgba(135,32,15,.45);
}
.layer-topcoat::after {
  background: radial-gradient(ellipse at 50% 0, #e94420 0 69%, transparent 71%) 0 0 / 52px 24px repeat-x;
}
.coating-zoom {
  position: absolute;
  z-index: 7;
  top: 37%;
  right: 16px;
  width: 104px;
  aspect-ratio: 1;
  overflow: hidden;
  border: 4px solid #fff;
  border-radius: 50%;
  background-color: #174fc8;
  background-image:
    radial-gradient(circle at 15px 16px, #fff 0 7px, #cfd7df 8px, #818e9d 12px, #35414e 14px, transparent 15px),
    radial-gradient(circle at 47px 46px, #fff 0 7px, #cfd7df 8px, #818e9d 12px, #35414e 14px, transparent 15px);
  background-size: 64px 60px;
  box-shadow: 0 0 0 3px #1651d0, 0 12px 24px rgba(16,19,24,.25);
}
.coating-zoom span {
  position: absolute;
  inset: 0 0 auto 0;
  height: 36%;
  background: linear-gradient(110deg, #f36b2d, #e73a1d);
}
.coating-zoom span::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -12px;
  left: 0;
  height: 13px;
  background: radial-gradient(ellipse at 50% 0, #e94420 0 69%, transparent 71%) 0 0 / 30px 13px repeat-x;
}
.coating-insight {
  padding: 22px 20px;
  border: 1px solid rgba(21,81,208,.18);
  border-radius: 12px;
  background: linear-gradient(145deg, #f4f7ff, #fff);
}
.insight-label { color: #1551d0; }
.coating-insight h5 {
  margin-top: 9px;
  color: var(--n-950);
  font-size: 21px;
  line-height: 1.3;
}
.coating-insight p {
  margin-top: 11px;
  color: var(--n-600);
  font-size: 13px;
  line-height: 1.65;
}
.coating-insight > strong {
  display: block;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid rgba(21,81,208,.18);
  color: #153a8d;
  font-size: 12px;
  line-height: 1.55;
}
.coating-cross-section figcaption {
  padding: 15px 28px 17px;
  border-top: 1px solid var(--n-100);
  color: var(--n-500);
  background: #fff;
  font-size: 12.5px;
  line-height: 1.65;
}

@media (max-width: 1040px) {
  .coating-figure-grid { grid-template-columns: minmax(0, 1fr) 218px; }
  .coating-legend {
    grid-column: 1 / -1;
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .coating-legend li { border-bottom: 0; }
}

@media (max-width: 720px) {
  .coating-figure-head { align-items: flex-start; padding: 22px 20px; }
  .coating-source { display: none; }
  .coating-figure-grid { grid-template-columns: 1fr; padding: 20px; }
  .coating-legend { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .coating-legend li { min-height: 54px; padding: 7px 4px 7px 0; }
  .coating-model { min-height: 292px; }
  .coating-insight { display: grid; grid-template-columns: 1fr; }
  .coating-cross-section figcaption { padding: 14px 20px 16px; }
}

@media (max-width: 420px) {
  .coating-figure-grid { padding: 16px; gap: 18px; }
  .coating-legend { gap: 4px 12px; }
  .coating-legend strong { font-size: 13px; }
  .coating-legend small { font-size: 10.5px; }
  .coating-model { min-height: 258px; }
  .coating-zoom { width: 80px; right: 12px; border-width: 3px; }
}

/* Innozinc 도막 단면 구조 — 카탈로그 기반 상도장 단면 시안 */
.coating-cross-section {
  scroll-margin-top: calc(var(--header-h) + 18px);
  border-radius: 4px;
  box-shadow: 0 22px 56px rgba(16,19,24,.09);
}
.coating-figure-head {
  align-items: center;
  min-height: 62px;
  padding: 18px 24px;
  background: var(--n-950);
}
.coating-source {
  padding: 0;
  border: 0;
  border-radius: 0;
  color: var(--n-300);
}
.coating-figure-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 244px;
  gap: 0;
  align-items: stretch;
  padding: 0;
  background: var(--n-50);
}
.coating-visual {
  min-width: 0;
  padding: clamp(22px, 3vw, 34px);
  background: var(--n-50);
}
.coating-visual-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}
.coating-visual-head strong {
  color: var(--n-950);
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: .04em;
}
.coating-visual-head span {
  color: #1551d0;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .07em;
}
.coating-model {
  min-height: 330px;
  overflow: hidden;
  border: 1px solid var(--n-200);
  border-radius: 3px;
  background: #1f58c7;
  box-shadow: 0 14px 28px rgba(16,19,24,.16);
}
.layer-substrate {
  height: 34%;
  border-top: 3px solid var(--n-950);
  background:
    linear-gradient(115deg, transparent 0 22%, rgba(255,255,255,.12) 23% 25%, transparent 26% 49%, rgba(14,19,25,.18) 50% 53%, transparent 54% 100%),
    repeating-linear-gradient(12deg, #67727e 0 4px, #4e5965 4px 7px, #77828d 7px 9px);
}
.layer-zinc {
  top: 30%;
  bottom: 32%;
  background-color: #1f58c7;
  background-image:
    radial-gradient(circle at 12px 12px, #fff 0 5px, #e5e9ee 6px, #9aa5b1 9px, #3d4753 11px, transparent 12px),
    radial-gradient(circle at 34px 32px, #fff 0 5px, #e5e9ee 6px, #9aa5b1 9px, #3d4753 11px, transparent 12px);
  background-size: 44px 40px;
  box-shadow: inset 0 -4px 0 rgba(12,45,115,.72);
}
.layer-ceramic {
  height: 33%;
  background: #1f58c7;
}
.layer-ceramic::after {
  background: radial-gradient(ellipse at 50% 0, #1f58c7 0 69%, transparent 71%) 0 0 / 52px 24px repeat-x;
}
.layer-topcoat {
  height: 29%;
  background:
    linear-gradient(180deg, rgba(255,255,255,.13), transparent 36%),
    linear-gradient(115deg, #4a5361 0%, #303741 58%, #20262d 100%);
  box-shadow: inset 0 -1px 0 rgba(0,0,0,.38);
}
.layer-topcoat::after {
  background: radial-gradient(ellipse at 50% 0, #2c333c 0 69%, transparent 71%) 0 0 / 52px 24px repeat-x;
}
.coating-model::before {
  content: "";
  position: absolute;
  z-index: 8;
  top: 47%;
  right: 186px;
  width: 17px;
  height: 17px;
  border: 3px solid var(--gold-400);
  border-radius: 50%;
  background: rgba(255,255,255,.18);
}
.coating-model::after {
  content: "";
  position: absolute;
  z-index: 7;
  top: 39%;
  right: 92px;
  width: 104px;
  height: 2px;
  background: var(--gold-400);
  transform: rotate(-24deg);
  transform-origin: right center;
}
.coating-zoom {
  top: 10%;
  right: 17px;
  width: 118px;
  border: 4px solid #fff;
  background-color: #1f58c7;
  background-image:
    radial-gradient(circle at 15px 16px, #fff 0 7px, #e1e6eb 8px, #8894a1 12px, #35414e 14px, transparent 15px),
    radial-gradient(circle at 47px 46px, #fff 0 7px, #e1e6eb 8px, #8894a1 12px, #35414e 14px, transparent 15px);
  background-size: 64px 60px;
  box-shadow: 0 0 0 3px #1f58c7, 0 12px 24px rgba(16,19,24,.24);
}
.coating-zoom span {
  height: 38%;
  background: linear-gradient(115deg, #4a5361, #252b33 70%);
}
.coating-zoom span::after {
  background: radial-gradient(ellipse at 50% 0, #2c333c 0 69%, transparent 71%) 0 0 / 30px 13px repeat-x;
}
.coating-zoom-label {
  position: absolute;
  z-index: 9;
  top: 14px;
  right: 15px;
  padding: 6px 8px;
  color: #fff;
  background: #1551d0;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .06em;
}
.coating-legend {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin-top: 18px;
}
.coating-legend li {
  display: block;
  min-height: 0;
  padding: 0 14px;
  border-bottom: 0;
  border-left: 1px solid var(--n-200);
}
.coating-legend li:first-child { padding-left: 0; border-left: 0; }
.coating-legend li > span {
  display: block;
  width: auto;
  height: auto;
  border-radius: 0;
  background: transparent !important;
  color: var(--gold-700);
  font-size: 10px;
  text-align: left;
}
.coating-legend .ceramic > span,
.coating-legend .ceramic strong { color: #1551d0; }
.coating-legend strong { margin-top: 5px; font-size: 12px; }
.coating-legend small { margin-top: 3px; font-size: 10px; }
.coating-insight {
  display: flex;
  flex-direction: column;
  padding: clamp(26px, 3vw, 38px) clamp(22px, 3vw, 32px);
  border: 0;
  border-left: 1px solid var(--n-200);
  border-radius: 0;
  background: #fff;
}
.insight-label { color: #1551d0; }
.coating-insight h5 {
  margin-top: 10px;
  font-size: clamp(21px, 2vw, 28px);
  line-height: 1.32;
}
.coating-insight p { margin-top: 18px; font-size: 12.5px; line-height: 1.72; }
.coating-insight > strong {
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid var(--n-200);
  color: var(--n-950);
}

@media (max-width: 900px) {
  .coating-figure-grid { grid-template-columns: 1fr; }
  .coating-insight {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(190px, .68fr);
    gap: 24px;
    border-top: 1px solid var(--n-200);
    border-left: 0;
  }
  .coating-insight p { grid-column: 1; }
  .coating-insight > strong {
    grid-column: 2;
    grid-row: 1 / span 2;
    margin-top: 0;
    padding: 0 0 0 22px;
    border-top: 0;
    border-left: 1px solid var(--n-200);
  }
}

@media (max-width: 720px) {
  .coating-figure-head { padding: 18px 20px; }
  .coating-visual { padding: 20px; }
  .coating-visual-head span { display: none; }
  .coating-model { min-height: 292px; }
  .coating-legend { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 0; }
  .coating-legend li:nth-child(3) { padding-left: 0; border-left: 0; }
  .coating-insight { display: block; }
  .coating-insight > strong {
    margin-top: 22px;
    padding: 20px 0 0;
    border-top: 1px solid var(--n-200);
    border-left: 0;
  }
}

@media (max-width: 420px) {
  .coating-visual { padding: 16px; }
  .coating-model { min-height: 250px; }
  .coating-zoom { top: 12%; right: 12px; width: 78px; border-width: 3px; }
  .coating-zoom-label { top: 9px; right: 9px; padding: 4px 5px; font-size: 8px; }
  .coating-model::before { right: 126px; width: 13px; height: 13px; border-width: 2px; }
  .coating-model::after { right: 67px; width: 66px; }
}

/* ---------- 풀블리드 다크 밴드: 라이트 본문의 단조로움을 끊는 .sub-content 형제 컴포넌트
   (마크업: .sub-content 분할 → <div class="band-dark"><div class="band-inner"><section>…</section></div></div>) ---------- */
.band-dark { background: var(--n-950); color: #fff; padding: var(--sp-xl) 0; }
.band-dark .band-inner { max-width: 1200px; margin: 0 auto; padding: 0 clamp(20px, 4vw, 28px); }
.band-dark section + section { margin-top: var(--sp-xl); }
/* 다크 배경 텍스트 색 보정 (타이포 크기·리듬은 위 .sub-content 그룹 셀렉터 공유) */
.band-dark h2, .band-dark h3 { color: #fff; }
.band-dark p, .band-dark p.lead { color: var(--n-300); }
.band-dark .sub-label { color: var(--gold-400); }
.band-dark .sub-label::before { background: var(--gold-400); }
/* stat-band 다크 변형: 밝은 카드 → 유리판 톤 (골드 틱 문법은 그대로) */
.band-dark .stat-band { background: rgba(255,255,255,.04); border-color: rgba(255,255,255,.1); color: #fff; }
.band-dark .stat-band > div + div { border-color: rgba(255,255,255,.12); } /* 모바일 border-top 색까지 커버 */
.band-dark .stat-band .num { color: #fff; }
.band-dark .stat-band .cap { color: var(--n-300); }

/* ---------- 반응형 (h1·h2·여백 크기는 clamp 토큰 하한이 담당) ---------- */
@media (max-width: 960px) {
  .sub-hero { height: clamp(240px, 36vw, 300px); }
  .split, .split.reverse { flex-direction: column; gap: 28px; }
  .card-grid, .card-grid.cols4 { grid-template-columns: 1fr 1fr; }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .news-list { grid-template-columns: 1fr; }
  .stat-band { flex-direction: column; gap: 26px; }
  .stat-band > div + div { border-left: 0; border-top: 1px solid var(--n-200); padding-top: 26px; }
}
@media (max-width: 560px) {
  .card-grid, .card-grid.cols4 { grid-template-columns: 1fr; }
  .sub-hero.standardized { height: auto; min-height: 310px; padding-top: calc(var(--header-h) + 46px); padding-bottom: 42px; }
  .cta-band.platform-cta { padding: 52px 22px; }
  .cta-band.platform-cta .btn-row { display: grid; grid-template-columns: 1fr; }
  .cta-band.platform-cta .btn-row .btn-pill { width: 100%; min-width: 0; margin: 0; }
}

/* ---------- 스크롤 리빌 상태 (sub.js가 .rv 부여 — JS 미동작 시 항상 표시) ---------- */
.rv {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .65s cubic-bezier(.22,.61,.36,1), transform .65s cubic-bezier(.22,.61,.36,1);
}
.rv.rv-in { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .rv { opacity: 1; transform: none; transition: none; }
}