/* ========================================================
   (주)온이스 디자인 시스템
   라이트 B2B 산업장비 톤 + KOMATSU 블루 포인트
   ======================================================== */

/* ── CSS 변수 (디자인 토큰) ── */
:root {
  /* 컬러 팔레트 */
  --color-bg:          #f7f9fc;
  --color-bg-2:        #eef3f8;
  --color-bg-3:        #e9eef5;
  --color-surface:     #ffffff;
  --color-border:      #e5e7eb;
  --color-border-2:    #d7dee8;

  --color-primary:     #0b5cad;
  --color-primary-dk:  #084a8c;
  --color-primary-lt:  #2f80ed;
  --color-primary-rgb: 11,92,173;

  --color-white:       var(--color-text);
  --color-text:        #111827;
  --color-text-muted:  #6b7280;
  --color-text-dark:   #ffffff;

  --color-accent:      #005bac;
  --color-header-bg:   rgba(255,255,255,.92);
  --color-header-bg-scrolled: rgba(255,255,255,.98);
  --color-hover-soft:  rgba(11,92,173,.06);
  --color-overlay:     rgba(17,24,39,.48);

  /* 타이포그래피 */
  --font-base:         'Pretendard', 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
  --fs-xs:    0.75rem;
  --fs-sm:    0.875rem;
  --fs-base:  1rem;
  --fs-md:    1.125rem;
  --fs-lg:    1.25rem;
  --fs-xl:    1.5rem;
  --fs-2xl:   1.875rem;
  --fs-3xl:   2.25rem;
  --fs-4xl:   3rem;
  --fs-5xl:   3.75rem;

  --fw-regular: 400;
  --fw-medium:  500;
  --fw-semibold:600;
  --fw-bold:    700;
  --fw-black:   900;

  --lh-tight:   1.2;
  --lh-snug:    1.4;
  --lh-normal:  1.6;
  --lh-relaxed: 1.8;

  /* 간격 */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* 반경 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* 그림자 */
  --shadow-sm: 0 1px 3px rgba(15,23,42,.08);
  --shadow-md: 0 8px 24px rgba(15,23,42,.10);
  --shadow-lg: 0 18px 48px rgba(15,23,42,.14);
  --shadow-glow: 0 12px 30px rgba(var(--color-primary-rgb),.18);

  /* 전환 */
  --transition-fast:   150ms ease;
  --transition-base:   250ms ease;
  --transition-slow:   400ms ease;

  /* 헤더 높이 */
  --header-h: 72px;
  --header-h-mobile: 60px;
}

.theme-dark {
  --color-bg:          #111827;
  --color-bg-2:        #182235;
  --color-bg-3:        #273449;
  --color-surface:     #1f2937;
  --color-border:      #374151;
  --color-border-2:    #4b5563;

  --color-primary:     #2f80ed;
  --color-primary-dk:  #1c64d1;
  --color-primary-lt:  #60a5fa;
  --color-primary-rgb: 47,128,237;

  --color-white:       #f9fafb;
  --color-text:        #f9fafb;
  --color-text-muted:  #cbd5e1;
  --color-text-dark:   #ffffff;

  --color-accent:      #60a5fa;
  --color-header-bg:   rgba(17,24,39,.92);
  --color-header-bg-scrolled: rgba(17,24,39,.98);
  --color-hover-soft:  rgba(47,128,237,.12);
  --color-overlay:     rgba(0,0,0,.62);

  --shadow-sm: 0 1px 3px rgba(0,0,0,.35);
  --shadow-md: 0 8px 24px rgba(0,0,0,.38);
  --shadow-lg: 0 18px 48px rgba(0,0,0,.45);
  --shadow-glow: 0 12px 30px rgba(var(--color-primary-rgb),.22);
}

/* ── 리셋 & 베이스 ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-base);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: var(--lh-normal);
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
img, svg { display: block; max-width: 100%; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
address { font-style: normal; }

/* ── 유틸리티 ── */
.container {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* 스크롤 페이드인 공통 */
.fade-in {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ────────────────────────────────────────────
   헤더
──────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: var(--color-header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: background var(--transition-base), box-shadow var(--transition-base);
}
.site-header.scrolled {
  background: var(--color-header-bg-scrolled);
  box-shadow: var(--shadow-md);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

/* 로고 */
.logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
  flex-shrink: 0;
}
.logo-brand {
  font-size: var(--fs-xl);
  font-weight: var(--fw-black);
  color: var(--color-primary);
  letter-spacing: -0.02em;
}
.logo-sub {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  font-weight: var(--fw-medium);
  margin-top: 2px;
  letter-spacing: 0.02em;
}

/* GNB */
.gnb { margin-left: auto; }
.gnb-list {
  display: flex;
  align-items: center;
  gap: 0;
}

.gnb-item {
  position: relative;
}

.gnb-link {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-text);
  white-space: nowrap;
  transition: color var(--transition-fast);
}
.gnb-link:hover { color: var(--color-primary); }
.gnb-link.active { color: var(--color-primary); }

/* GNB 드롭다운 */
.dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  width: max-content;
  min-width: 220px;
  max-width: calc(100vw - 32px);
  background: var(--color-bg-2);
  border: 1px solid var(--color-border-2);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
  z-index: 100;
}
.gnb-item:nth-last-child(-n+2) .dropdown {
  left: auto;
  right: 0;
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown li a {
  display: block;
  padding: var(--space-3) var(--space-5);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-fast), background var(--transition-fast);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}
.dropdown li a:hover { color: var(--color-primary); background: var(--color-hover-soft); }
.dropdown li a.active {
  color: var(--color-primary);
  background: var(--color-hover-soft);
  font-weight: var(--fw-semibold);
}
.dropdown li a.cta-menu {
  color: var(--color-primary);
  font-weight: var(--fw-semibold);
}

/* 헤더 우측 액션 */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-shrink: 0;
}

.header-tel {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}
.header-tel:hover { color: var(--color-primary); }
.header-tel span { white-space: nowrap; }

/* 햄버거 버튼 */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 4px;
}
.bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}
.hamburger.active .bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active .bar:nth-child(2) { opacity: 0; }
.hamburger.active .bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── 모바일 메뉴 ── */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--header-h-mobile);
  right: -100%;
  width: min(320px, 85vw);
  height: calc(100dvh - var(--header-h-mobile));
  background: var(--color-bg-2);
  border-left: 1px solid var(--color-border-2);
  overflow-y: auto;
  transition: right var(--transition-slow);
  z-index: 999;
  padding: var(--space-4) 0 var(--space-8);
}
.mobile-menu.open { right: 0; }

.mobile-menu-list { padding: 0 var(--space-4); }
.mobile-menu-list > li > a,
.mobile-sub-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-4) var(--space-2);
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  text-align: left;
}
.mobile-sub-toggle .arrow { transition: transform var(--transition-base); }
.mobile-sub-toggle.open .arrow { transform: rotate(180deg); }
.mobile-sub-toggle.active { color: var(--color-primary); }

.mobile-sub {
  display: none;
  padding: var(--space-2) 0 var(--space-2) var(--space-4);
  background: var(--color-hover-soft);
}
.mobile-sub.open { display: block; }
.mobile-sub li a {
  display: block;
  padding: var(--space-3) var(--space-2);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}
.mobile-sub li a:hover { color: var(--color-primary); }
.mobile-sub li a.active {
  color: var(--color-primary);
  font-weight: var(--fw-semibold);
}

.mobile-menu-footer {
  padding: var(--space-6) var(--space-6) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.mobile-tel-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-3);
  border: 1px solid var(--color-border-2);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-text);
  transition: border-color var(--transition-fast);
}
.mobile-tel-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }

.mobile-quote-btn {
  display: block;
  padding: var(--space-3) var(--space-4);
  background: var(--color-primary);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  color: var(--color-text-dark);
  text-align: center;
  transition: background var(--transition-fast);
}
.mobile-quote-btn:hover { background: var(--color-primary-dk); }

/* 모바일 오버레이 */
.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--color-overlay);
  z-index: 998;
  backdrop-filter: blur(2px);
}
.mobile-overlay.open { display: block; }

/* ────────────────────────────────────────────
   버튼 컴포넌트
──────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-md);
  font-size: var(--fs-base);
  font-weight: var(--fw-bold);
  line-height: 1;
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-dark);
}
.btn-primary:hover {
  background: var(--color-primary-dk);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.btn-outline {
  background: var(--color-surface);
  color: var(--color-primary);
  border: 2px solid rgba(var(--color-primary-rgb),.35);
}
.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.btn-lg {
  padding: var(--space-5) var(--space-10);
  font-size: var(--fs-md);
  border-radius: var(--radius-lg);
}

/* ────────────────────────────────────────────
   섹션 공통
──────────────────────────────────────────── */
.section { padding-block: 7.5rem; }
.section-sm { padding-block: 6rem; }

.section-header {
  text-align: center;
  margin-bottom: 4.5rem;
}
.section-label {
  display: inline-block;
  padding: var(--space-1) var(--space-4);
  background: rgba(var(--color-primary-rgb),.12);
  border: 1px solid rgba(var(--color-primary-rgb),.3);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--color-primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.section-title {
  font-size: var(--fs-3xl);
  font-weight: var(--fw-black);
  color: var(--color-white);
  line-height: var(--lh-tight);
  letter-spacing: -0.02em;
  margin-bottom: 1.125rem;
}
.section-title .accent { color: var(--color-primary); }
.section-desc {
  margin-top: 0;
  font-size: var(--fs-md);
  color: var(--color-text-muted);
  max-width: 660px;
  margin-inline: auto;
}

/* 플레이스홀더 이미지 */
.img-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-3);
  border: 1px dashed var(--color-border-2);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  text-align: center;
  min-height: 200px;
  gap: var(--space-2);
  flex-direction: column;
}

/* ────────────────────────────────────────────
   Hero 섹션
──────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 780px;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--header-h);
  padding-bottom: 3.75rem;
  margin-bottom: 0;
}

/* 배경 컨테이너 - 이미지 로딩 실패 시 라이트 fallback */
.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background:
    linear-gradient(135deg, #f7f9fc 0%, #eef3f8 56%, #ffffff 100%);
  z-index: 0;
}

/* 레이어 1: 배경 이미지 + Ken-Burns 효과 */
.hero-bg-img {
  position: absolute;
  inset: -6%;          /* scale 여유분 - 가장자리 흰 테두리 방지 */
  /* TODO: 실제 (주)온이스 제품/공장 사진으로 교체 */
  background-image: url('https://images.unsplash.com/photo-1567789884554-0b844b597180?w=1920&q=80&auto=format&fit=crop');
  background-size: cover;
  background-position: center right;
  background-color: #eef3f8;
  opacity: .70;
  animation: hero-ken-burns 28s ease-in-out infinite alternate;
  will-change: transform;
}

/* 레이어 2: 라이트 그라데이션 오버레이 - 좌측 텍스트 대비 확보 */
.hero-bg-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      90deg,
      rgba(247,249,252,.90) 0%,
      rgba(247,249,252,.76) 38%,
      rgba(247,249,252,.38) 68%,
      rgba(247,249,252,.12) 100%
    ),
    linear-gradient(
      to bottom,
      rgba(255,255,255,.24) 0%,
      transparent 26%,
      transparent 70%,
      rgba(238,243,248,.28) 100%
    );
  z-index: 1;
}

/* 레이어 3: 인더스트리얼 그리드 패턴 - 오버레이 위에 은은하게 */
.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0 42% 0 0;
  background-image:
    linear-gradient(rgba(var(--color-primary-rgb),.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--color-primary-rgb),.035) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 2;
  pointer-events: none;
}

/* 레이어 4: 우하단 블루 글로우 포인트 */
.hero-bg::after {
  content: '';
  position: absolute;
  bottom: -100px;
  right: -60px;
  width: 640px;
  height: 640px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--color-primary-rgb),.10) 0%, transparent 68%);
  pointer-events: none;
  z-index: 2;
}

/* Ken-Burns: 아주 느린 미세 확대 + 소폭 이동 */
@keyframes hero-ken-burns {
  0%   { transform: scale(1.00) translate(0%,    0%); }
  100% { transform: scale(1.07) translate(-1.2%, -0.8%); }
}

/* 접근성: 애니메이션 줄임 선호 시 정지 */
@media (prefers-reduced-motion: reduce) {
  .hero-bg-img { animation: none; }
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
}

.hero-content {
  max-width: 650px;
  transform: translateY(28px);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: rgba(var(--color-primary-rgb),.1);
  border: 1px solid rgba(var(--color-primary-rgb),.25);
  border-radius: var(--radius-full);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-primary);
  margin-bottom: var(--space-6);
}
.hero-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(1.4); }
}

.hero-title {
  font-size: clamp(2.35rem, 4.8vw, 4.15rem);
  font-weight: var(--fw-black);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--color-white);
  margin-bottom: var(--space-6);
  text-shadow: 0 1px 2px rgba(255,255,255,.55);
}
.hero-title .line-yellow { color: var(--color-primary); }

.theme-dark .hero-bg {
  background-color: #111827;
}
.theme-dark .hero-bg-img {
  opacity: .60;
  background-color: #111827;
}
.theme-dark .hero-bg-overlay {
  background:
    linear-gradient(
      90deg,
      rgba(17,24,39,.94) 0%,
      rgba(17,24,39,.82) 42%,
      rgba(17,24,39,.45) 72%,
      rgba(17,24,39,.25) 100%
    ),
    linear-gradient(
      to bottom,
      rgba(17,24,39,.22) 0%,
      transparent 26%,
      transparent 70%,
      rgba(17,24,39,.34) 100%
    );
}
.theme-dark .hero-title {
  text-shadow: 0 2px 10px rgba(0,0,0,.18);
}

.hero-desc {
  font-size: var(--fs-md);
  color: var(--color-text-muted);
  line-height: var(--lh-relaxed);
  max-width: 560px;
  margin-bottom: var(--space-8);
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: var(--space-8);
  margin-top: var(--space-10);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}
.hero-stat-item { display: flex; flex-direction: column; gap: var(--space-1); }
.hero-stat-num {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-black);
  color: var(--color-primary);
  line-height: 1;
}
.hero-stat-label {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  font-weight: var(--fw-medium);
}

/* Hero 스크롤 인디케이터 */
.hero-scroll {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  z-index: 1;
  animation: bounce-scroll 2s infinite;
}
.hero-scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-primary), transparent);
}
@keyframes bounce-scroll {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ────────────────────────────────────────────
   제품 카테고리 카드 섹션
──────────────────────────────────────────── */
.categories-section {
  position: relative;
  background: var(--color-bg-2);
  box-shadow: inset 0 22px 34px rgba(15,23,42,.045);
  padding-top: 8rem;
  padding-bottom: 8.25rem;
}
.categories-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 88px;
  background: linear-gradient(to bottom, rgba(255,255,255,.62), rgba(238,243,248,0));
  pointer-events: none;
}
.theme-dark .categories-section {
  box-shadow: inset 0 22px 34px rgba(0,0,0,.16);
}
.theme-dark .categories-section::before {
  background: linear-gradient(to bottom, rgba(17,24,39,.34), rgba(24,34,53,0));
}

.categories-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.category-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  min-height: 320px;
  overflow: hidden;
  transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
  cursor: pointer;
}
.category-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg), 0 16px 30px rgba(var(--color-primary-rgb),.10);
}
.category-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-lt));
  opacity: 0;
  transition: opacity var(--transition-base);
}
.category-card:hover::before { opacity: 1; }
.category-card::after {
  content: '';
  position: absolute;
  top: -20px;
  right: -34px;
  width: 210px;
  height: 150px;
  background:
    linear-gradient(135deg, rgba(var(--color-primary-rgb),.10), rgba(var(--color-primary-rgb),0) 62%),
    repeating-linear-gradient(
      135deg,
      rgba(17,24,39,.055) 0,
      rgba(17,24,39,.055) 1px,
      transparent 1px,
      transparent 11px
    );
  clip-path: polygon(24% 0, 100% 0, 100% 78%, 72% 100%, 0 100%, 0 24%);
  opacity: .72;
  pointer-events: none;
  transition: opacity var(--transition-base), transform var(--transition-base);
}
.theme-dark .category-card::after {
  background:
    linear-gradient(135deg, rgba(var(--color-primary-rgb),.16), rgba(var(--color-primary-rgb),0) 62%),
    repeating-linear-gradient(
      135deg,
      rgba(249,250,251,.045) 0,
      rgba(249,250,251,.045) 1px,
      transparent 1px,
      transparent 11px
    );
}
.category-card:hover::after {
  opacity: .92;
  transform: translate(-5px, 5px);
}

.category-icon {
  position: relative;
  z-index: 1;
  width: 56px;
  height: 56px;
  background: rgba(var(--color-primary-rgb),.1);
  border: 1px solid rgba(var(--color-primary-rgb),.2);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.875rem;
  transition: background var(--transition-base);
}
.category-card:hover .category-icon {
  background: rgba(var(--color-primary-rgb),.2);
}
.category-icon svg { color: var(--color-primary); }

.category-name {
  position: relative;
  z-index: 1;
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  color: var(--color-white);
  margin-bottom: 1.125rem;
}
.category-desc {
  position: relative;
  z-index: 1;
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  line-height: var(--lh-relaxed);
  margin-bottom: 1.75rem;
}
.category-items {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: 1.875rem;
}
.category-tag {
  padding: var(--space-1) var(--space-3);
  background: var(--color-bg-2);
  border: 1px solid var(--color-border-2);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  font-weight: var(--fw-medium);
}
.category-link {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-primary);
  transition: gap var(--transition-fast);
}
.category-link:hover { gap: var(--space-3); }
.category-link-arrow {
  display: inline-block;
  transition: transform var(--transition-fast);
}
.category-card:hover .category-link-arrow { transform: translateX(4px); }

/* ────────────────────────────────────────────
   회사 강점 섹션
──────────────────────────────────────────── */
.strengths-section {
  background: var(--color-bg);
  padding-top: 8.125rem;
  padding-bottom: 8.125rem;
}

.strengths-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.strength-item {
  text-align: center;
  padding: var(--space-8) var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: border-color var(--transition-base), transform var(--transition-base);
}
.strength-item:hover {
  border-color: rgba(var(--color-primary-rgb),.3);
  transform: translateY(-4px);
}

.strength-icon {
  width: 64px;
  height: 64px;
  background: rgba(var(--color-primary-rgb),.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-5);
  transition: background var(--transition-base);
}
.strength-item:hover .strength-icon { background: rgba(var(--color-primary-rgb),.18); }
.strength-icon svg { color: var(--color-primary); }

.strength-title {
  font-size: var(--fs-md);
  font-weight: var(--fw-bold);
  color: var(--color-white);
  margin-bottom: var(--space-3);
  line-height: var(--lh-snug);
}
.strength-desc {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  line-height: var(--lh-relaxed);
}

/* ────────────────────────────────────────────
   제품 라인업 그리드
──────────────────────────────────────────── */
.lineup-section { background: var(--color-bg-2); }

.lineup-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.lineup-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
}
.lineup-card:hover {
  border-color: rgba(var(--color-primary-rgb),.4);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.lineup-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--color-bg-3);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-2);
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
}

.lineup-body {
  padding: var(--space-5);
}
.lineup-category {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--color-primary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}
.lineup-name {
  font-size: var(--fs-md);
  font-weight: var(--fw-bold);
  color: var(--color-white);
  margin-bottom: var(--space-2);
}
.lineup-spec {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}
.lineup-link {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  transition: gap var(--transition-fast);
}
.lineup-card:hover .lineup-link { gap: var(--space-2); }

/* ────────────────────────────────────────────
   서비스 배너 섹션
──────────────────────────────────────────── */
.service-banner {
  background: linear-gradient(135deg, #0d1922 0%, #1a2a3a 100%);
  border-top: 1px solid rgba(255,255,255,.12);
  border-bottom: 1px solid rgba(255,255,255,.12);
  --color-white: #f9fafb;
  --color-text: #f9fafb;
  --color-text-muted: #cbd5e1;
  --color-border: rgba(255,255,255,.14);
}

.service-banner-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: var(--space-10);
}

.service-banner-content { }
.service-banner-label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--color-primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}
.service-banner-title {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-black);
  color: var(--color-white);
  line-height: var(--lh-snug);
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}
.service-banner-desc {
  font-size: var(--fs-base);
  color: var(--color-text-muted);
  max-width: 560px;
  line-height: var(--lh-relaxed);
}

.service-banner-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  min-width: 200px;
}

.service-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
  margin-top: var(--space-10);
}

.service-card {
  background: rgba(255,255,255,.06);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: border-color var(--transition-base), background var(--transition-base);
}
.service-card:hover {
  border-color: rgba(var(--color-primary-rgb),.3);
  background: rgba(var(--color-primary-rgb),.04);
}

.service-card-icon {
  width: 44px;
  height: 44px;
  background: rgba(var(--color-primary-rgb),.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
}
.service-card-icon svg { color: var(--color-primary); }

.service-card-title {
  font-size: var(--fs-md);
  font-weight: var(--fw-bold);
  color: var(--color-white);
  margin-bottom: var(--space-2);
}
.service-card-desc {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  line-height: var(--lh-relaxed);
}

/* ────────────────────────────────────────────
   견적의뢰 CTA 섹션
──────────────────────────────────────────── */
.quote-cta-section {
  background: var(--color-bg);
  position: relative;
  overflow: hidden;
}
.quote-cta-section::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(var(--color-primary-rgb),.08) 0%, transparent 70%);
  pointer-events: none;
}

.quote-cta-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
}

.quote-cta-inner .section-title { margin-bottom: var(--space-4); }
.quote-cta-inner .section-desc { margin-bottom: var(--space-10); }

/* 견적의뢰 폼 UI (2단계에서 백엔드 연결) */
.quote-form-preview {
  background: var(--color-surface);
  border: 1px solid var(--color-border-2);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  text-align: left;
}

.quote-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}
.quote-form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.quote-form-group label {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-text-muted);
}
.quote-form-group input,
.quote-form-group select,
.quote-form-group textarea {
  background: var(--color-bg-2);
  border: 1px solid var(--color-border-2);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-base);
  font-size: var(--fs-sm);
  color: var(--color-text);
  transition: border-color var(--transition-fast);
  outline: none;
}
.quote-form-group input:focus,
.quote-form-group select:focus,
.quote-form-group textarea:focus {
  border-color: var(--color-primary);
}
.quote-form-group input::placeholder,
.quote-form-group textarea::placeholder { color: var(--color-text-muted); }
.quote-form-group select option { background: var(--color-bg-2); }
.quote-form-group textarea { resize: vertical; min-height: 100px; }
.quote-form-group.full { grid-column: 1 / -1; }

.quote-form-notice {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  padding: var(--space-3) var(--space-4);
  background: rgba(var(--color-primary-rgb),.06);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.quote-form-submit {
  width: 100%;
  padding: var(--space-4);
  font-size: var(--fs-md);
  font-weight: var(--fw-bold);
  border-radius: var(--radius-md);
}

/* ────────────────────────────────────────────
   플로팅 버튼 & 모달
──────────────────────────────────────────── */
.floating-contact {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  z-index: 900;
}

.floating-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  width: 58px;
  height: 58px;
  background: var(--color-primary);
  border-radius: 50%;
  color: var(--color-text-dark);
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  box-shadow: 0 4px 20px rgba(var(--color-primary-rgb),.4);
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}
.floating-btn:hover {
  background: var(--color-primary-dk);
  transform: scale(1.08);
  box-shadow: 0 6px 28px rgba(var(--color-primary-rgb),.5);
}
.floating-btn.active { background: var(--color-bg-2); color: var(--color-primary); }

.floating-modal {
  position: fixed;
  bottom: 80px;
  right: var(--space-8);
  width: 280px;
  background: var(--color-surface);
  border: 1px solid var(--color-border-2);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  z-index: 901;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px) scale(.97);
  transition: opacity var(--transition-base), visibility var(--transition-base), transform var(--transition-base);
  overflow: hidden;
}
.floating-modal.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.floating-modal-inner { padding: var(--space-5); }
.floating-modal-close {
  position: absolute;
  top: var(--space-3);
  right: var(--space-4);
  font-size: var(--fs-xl);
  color: var(--color-text-muted);
  line-height: 1;
  transition: color var(--transition-fast);
}
.floating-modal-close:hover { color: var(--color-white); }

.floating-modal-title {
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.floating-modal-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  transition: background var(--transition-fast);
  margin-bottom: var(--space-2);
}
.floating-modal-item:last-child { margin-bottom: 0; }
.floating-modal-item:hover { background: var(--color-hover-soft); }
.floating-modal-item svg { color: var(--color-primary); flex-shrink: 0; }

.floating-modal-label {
  display: block;
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  font-weight: var(--fw-medium);
}
.floating-modal-value {
  display: block;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-white);
  margin-top: 2px;
}

.floating-modal-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 900;
}
.floating-modal-backdrop.open { display: block; }

/* ────────────────────────────────────────────
   푸터
──────────────────────────────────────────── */
.site-footer {
  background: var(--color-bg-2);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-16);
}

.footer-inner { }

.footer-top {
  display: grid;
  grid-template-columns: 280px 1fr auto;
  gap: var(--space-12);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid var(--color-border);
}

.footer-logo {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: var(--space-5);
}
.footer-desc {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  line-height: var(--lh-relaxed);
}

.footer-nav { display: flex; gap: var(--space-10); }
.footer-nav-col strong {
  display: block;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border);
}
.footer-nav-col ul { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-nav-col li a {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}
.footer-nav-col li a:hover { color: var(--color-primary); }

.footer-contact strong {
  display: block;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border);
}
.footer-contact ul { display: flex; flex-direction: column; gap: var(--space-3); margin-bottom: var(--space-6); }
.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
}
.footer-contact li svg { flex-shrink: 0; margin-top: 2px; }
.footer-contact a:hover { color: var(--color-primary); }

.footer-quote-btn {
  display: block;
  padding: var(--space-3) var(--space-5);
  background: var(--color-primary);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  color: var(--color-text-dark);
  text-align: center;
  transition: background var(--transition-fast), transform var(--transition-fast);
}
.footer-quote-btn:hover { background: var(--color-primary-dk); transform: translateY(-1px); }

.footer-bottom {
  padding: var(--space-6) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.biz-info, .copyright {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}

.theme-selector {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: auto;
}
.theme-selector-label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--color-text-muted);
  white-space: nowrap;
}
.theme-toggle {
  display: inline-flex;
  align-items: center;
  padding: 3px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
}
.theme-toggle-btn {
  min-width: 56px;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  color: var(--color-text-muted);
  transition: color var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}
.theme-toggle-btn:hover {
  color: var(--color-primary);
}
.theme-toggle-btn.active,
.theme-toggle-btn[aria-pressed="true"] {
  color: var(--color-text-dark);
  background: var(--color-primary);
  box-shadow: 0 4px 12px rgba(var(--color-primary-rgb),.24);
}

/* ────────────────────────────────────────────
   서브페이지 공통 레이아웃
──────────────────────────────────────────── */
.subpage-hero {
  position: relative;
  padding-top: calc(var(--header-h) + var(--space-20));
  padding-bottom: var(--space-16);
  background:
    linear-gradient(108deg, rgba(247,249,252,.98) 0%, rgba(238,243,248,.94) 58%, rgba(255,255,255,.90) 100%),
    radial-gradient(circle at 82% 30%, rgba(var(--color-primary-rgb),.12) 0%, transparent 34%);
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
}
.subpage-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(var(--color-primary-rgb),.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--color-primary-rgb),.05) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
}
.theme-dark .subpage-hero {
  background:
    linear-gradient(108deg, rgba(17,24,39,.96) 0%, rgba(31,41,55,.92) 58%, rgba(39,52,73,.84) 100%),
    radial-gradient(circle at 82% 30%, rgba(var(--color-primary-rgb),.14) 0%, transparent 34%);
}
.subpage-hero .container {
  position: relative;
  z-index: 1;
}
.subpage-title {
  font-size: var(--fs-4xl);
  font-weight: var(--fw-black);
  color: var(--color-white);
  line-height: var(--lh-tight);
  letter-spacing: -0.02em;
}

.subpage-nav-wrap {
  background: var(--color-bg-2);
  border-bottom: 1px solid var(--color-border);
}
.breadcrumb {
  padding-top: var(--space-5);
}
.breadcrumb ol {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
}
.breadcrumb li + li::before {
  content: '>';
  color: var(--color-border-2);
}
.breadcrumb a {
  transition: color var(--transition-fast);
}
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb span { color: var(--color-text); }

.subpage-tabs {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-block: var(--space-5);
  overflow-x: auto;
}
.subpage-tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 120px;
  padding: var(--space-3) var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-text-muted);
  white-space: nowrap;
  transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}
.subpage-tab:hover,
.subpage-tab.active {
  color: var(--color-text-dark);
  background: var(--color-primary);
  border-color: var(--color-primary);
}

/* ────────────────────────────────────────────
   회사소개 > 인사말
──────────────────────────────────────────── */
.greeting-section {
  background: var(--color-bg);
}
.greeting-intro {
  max-width: 980px;
  margin-bottom: var(--space-10);
}
.greeting-headline {
  font-size: clamp(2rem, 4vw, var(--fs-4xl));
  font-weight: var(--fw-black);
  color: var(--color-white);
  line-height: var(--lh-snug);
  letter-spacing: -0.02em;
}
.greeting-headline .accent { color: var(--color-primary); }
.greeting-slogan {
  margin-top: var(--space-5);
  font-size: var(--fs-md);
  font-style: italic;
  color: var(--color-text-muted);
  line-height: var(--lh-relaxed);
}
.greeting-body {
  max-width: 920px;
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-16);
}
.greeting-body p {
  font-size: var(--fs-md);
  line-height: var(--lh-relaxed);
  color: var(--color-text);
  word-break: keep-all;
}
.greeting-body p + p { margin-top: var(--space-5); }

.greeting-content-grid {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: var(--space-8);
  align-items: start;
}
.history-panel,
.company-overview-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
}
.content-panel-header {
  margin-bottom: var(--space-8);
}
.content-panel-title {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-black);
  color: var(--color-white);
  line-height: var(--lh-snug);
}

.history-timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}
.history-timeline::before {
  content: '';
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 7px;
  width: 2px;
  background: rgba(var(--color-primary-rgb),.28);
}
.history-item {
  position: relative;
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: var(--space-5);
  padding-left: var(--space-8);
}
.history-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 16px;
  height: 16px;
  background: var(--color-primary);
  border: 4px solid var(--color-surface);
  border-radius: 50%;
  box-shadow: 0 0 0 1px rgba(var(--color-primary-rgb),.32);
  z-index: 1;
}
.history-year {
  font-size: var(--fs-lg);
  font-weight: var(--fw-black);
  color: var(--color-primary);
  line-height: var(--lh-snug);
}
.history-desc {
  font-size: var(--fs-base);
  color: var(--color-text);
  line-height: var(--lh-relaxed);
  word-break: keep-all;
}

.overview-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--color-border-2);
}
.overview-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: var(--space-6);
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--color-border);
}
.overview-row dt {
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  color: var(--color-primary);
}
.overview-row dd {
  font-size: var(--fs-base);
  color: var(--color-text);
  line-height: var(--lh-relaxed);
}
.overview-address {
  display: grid;
  gap: var(--space-1);
}
.overview-address + .overview-address {
  margin-top: var(--space-5);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border);
}
.overview-address strong {
  color: var(--color-white);
  font-weight: var(--fw-bold);
}
.overview-address span,
.overview-address address {
  color: var(--color-text-muted);
}

/* ────────────────────────────────────────────
   회사소개 > 오시는 길
──────────────────────────────────────────── */
.location-section {
  background: var(--color-bg);
}
.location-card-grid {
  display: grid;
  gap: var(--space-8);
}
.location-card {
  display: grid;
  grid-template-columns: minmax(300px, .82fr) minmax(0, 1.18fr);
  gap: var(--space-8);
  align-items: stretch;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  overflow: hidden;
}
.location-info {
  display: flex;
  flex-direction: column;
}
.location-badge {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: var(--space-1) var(--space-4);
  background: rgba(var(--color-primary-rgb),.12);
  border: 1px solid rgba(var(--color-primary-rgb),.3);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}
.location-name {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-black);
  color: var(--color-white);
  line-height: var(--lh-snug);
  margin-bottom: var(--space-6);
}
.location-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.location-row {
  display: grid;
  grid-template-columns: 74px 1fr;
  gap: var(--space-4);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--color-border);
}
.location-row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}
.location-row dt {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  color: var(--color-primary);
}
.location-row dt svg {
  flex-shrink: 0;
}
.location-row dd {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
  font-size: var(--fs-base);
  color: var(--color-text);
  line-height: var(--lh-relaxed);
}
.location-row address {
  color: var(--color-text);
  word-break: keep-all;
}
.location-row a {
  transition: color var(--transition-fast);
}
.location-row a:hover { color: var(--color-primary); }
.copy-address-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: var(--space-2) var(--space-3);
  background: var(--color-bg-2);
  border: 1px solid var(--color-border-2);
  border-radius: var(--radius-md);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--color-text-muted);
  transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}
.copy-address-btn:hover,
.copy-address-btn.copied {
  color: var(--color-text-dark);
  background: var(--color-primary);
  border-color: var(--color-primary);
}
.location-map-wrap {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  display: flex;
  align-items: stretch;
  justify-content: center;
  background: var(--color-bg-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.location-map-wrap .root_daum_roughmap {
  width: 100% !important;
  max-width: 640px;
}
.location-map-wrap .root_daum_roughmap .wrap_map {
  width: 100% !important;
}

/* ────────────────────────────────────────────
   KOMATSU 소개 > KOMATSU 산기㈜
──────────────────────────────────────────── */
.komatsu-section {
  background: var(--color-bg);
}
.komatsu-hero-copy {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-8);
  align-items: center;
  margin-bottom: var(--space-10);
}
.komatsu-years-badge {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: rgba(var(--color-primary-rgb),.12);
  border: 1px solid rgba(var(--color-primary-rgb),.35);
  box-shadow: var(--shadow-glow);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  flex-shrink: 0;
}
.komatsu-years-badge strong {
  font-size: var(--fs-4xl);
  font-weight: var(--fw-black);
  color: var(--color-primary);
  line-height: 1;
}
.komatsu-years-badge span {
  margin-top: var(--space-2);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.komatsu-quote {
  position: relative;
  padding-left: var(--space-8);
  font-family: Georgia, 'Times New Roman', serif;
  font-size: clamp(2rem, 4vw, var(--fs-4xl));
  font-weight: var(--fw-bold);
  color: var(--color-white);
  line-height: var(--lh-snug);
  letter-spacing: -0.01em;
}
.komatsu-quote::before {
  content: '"';
  position: absolute;
  top: -.35em;
  left: 0;
  font-size: 4rem;
  line-height: 1;
  color: var(--color-primary);
}
.komatsu-quote span,
.komatsu-quote strong {
  display: block;
}
.komatsu-quote strong {
  color: var(--color-primary);
}
.komatsu-intro {
  max-width: 980px;
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-16);
}
.komatsu-intro p {
  font-size: var(--fs-md);
  line-height: var(--lh-relaxed);
  color: var(--color-text);
  word-break: keep-all;
}
.komatsu-intro p + p {
  margin-top: var(--space-5);
}
.komatsu-content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr);
  gap: var(--space-8);
  align-items: start;
  margin-bottom: var(--space-8);
}
.business-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
}
.business-list {
  display: grid;
  gap: var(--space-4);
}
.business-list li {
  position: relative;
  padding-left: var(--space-8);
  font-size: var(--fs-base);
  color: var(--color-text);
  line-height: var(--lh-relaxed);
  word-break: keep-all;
}
.business-list li::before {
  content: '';
  position: absolute;
  top: .65em;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(var(--color-primary-rgb),.12);
}
.komatsu-history-panel {
  margin-top: var(--space-8);
}
.komatsu-history-timeline {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: var(--space-8);
  row-gap: var(--space-6);
}
.komatsu-history-timeline::before {
  display: none;
}
.komatsu-history-timeline .history-item {
  min-height: 72px;
}

/* ────────────────────────────────────────────
   프레스기계 > 제품군 페이지
──────────────────────────────────────────── */
.product-family-section {
  background: var(--color-bg);
}
.product-family-intro {
  max-width: 920px;
  margin-bottom: var(--space-12);
}
.product-family-intro .section-title {
  margin-bottom: var(--space-5);
}
.product-family-desc {
  display: grid;
  gap: var(--space-4);
}
.product-family-desc p {
  font-size: var(--fs-md);
  color: var(--color-text);
  line-height: var(--lh-relaxed);
  word-break: keep-all;
}
.model-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-6);
}
.model-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
}
.model-card:hover {
  border-color: rgba(var(--color-primary-rgb),.4);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.model-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--color-bg-3);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  text-align: center;
}
.model-image svg {
  color: var(--color-text-muted);
}
.model-card-body {
  padding: var(--space-6);
}
.model-category {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--color-primary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}
.model-name {
  font-size: var(--fs-xl);
  font-weight: var(--fw-black);
  color: var(--color-white);
  line-height: var(--lh-snug);
  margin-bottom: var(--space-3);
}
.model-desc {
  min-height: 1.6em;
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  line-height: var(--lh-relaxed);
  margin-bottom: var(--space-5);
}
.model-spec-list {
  display: flex;
  flex-direction: column;
  padding: var(--space-2) var(--space-4);
  background: var(--color-bg-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.model-spec-row {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: var(--space-4);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
}
.model-spec-row dt {
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  color: var(--color-primary);
}
.model-spec-row dd {
  font-size: var(--fs-xs);
  color: var(--color-text);
  line-height: var(--lh-snug);
}
.product-quote-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-8);
  margin-top: var(--space-12);
  padding: var(--space-8);
  background: linear-gradient(135deg, #0d1922 0%, #1a2a3a 100%);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--radius-xl);
  --color-white: #f9fafb;
  --color-text: #f9fafb;
  --color-text-muted: #cbd5e1;
  --color-border: rgba(255,255,255,.14);
}
.product-quote-title {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-black);
  color: var(--color-white);
  line-height: var(--lh-snug);
  margin-bottom: var(--space-3);
}
.product-quote-desc {
  font-size: var(--fs-base);
  color: var(--color-text-muted);
  line-height: var(--lh-relaxed);
}

/* ────────────────────────────────────────────
   반응형 미디어 쿼리
──────────────────────────────────────────── */

/* 태블릿 이하 (1024px) */
@media (max-width: 1024px) {
  .site-header { height: var(--header-h-mobile); }

  /* 데스크탑 GNB 숨기기 */
  .gnb, .header-tel { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: block; }

  .hero { padding-top: var(--header-h-mobile); }
  .section { padding-block: 5.75rem; }
  .section-sm { padding-block: 5rem; }
  .section-header { margin-bottom: 3.5rem; }
  .categories-section {
    padding-top: 6rem;
    padding-bottom: 6.25rem;
  }
  .strengths-section {
    padding-top: 6.25rem;
    padding-bottom: 6.25rem;
  }

  .categories-grid { grid-template-columns: 1fr 1fr; }
  .strengths-grid { grid-template-columns: repeat(2, 1fr); }
  .lineup-grid { grid-template-columns: repeat(2, 1fr); }
  .service-cards { grid-template-columns: 1fr 1fr; }
  .greeting-content-grid { grid-template-columns: 1fr; }
  .location-card { grid-template-columns: 1fr; }
  .komatsu-content-grid { grid-template-columns: 1fr; }
  .model-card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .product-quote-cta { grid-template-columns: 1fr; }

  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

/* 모바일 (768px) */
@media (max-width: 768px) {
  :root {
    --space-20: 3.5rem;
    --space-16: 2.5rem;
  }

  .section {
    padding-block: 4.5rem;
  }
  .section-sm {
    padding-block: 4rem;
  }
  .section-header {
    margin-bottom: 3rem;
  }
  .section-label {
    margin-bottom: .875rem;
  }
  .section-title {
    font-size: var(--fs-2xl);
    margin-bottom: 1rem;
  }
  .section-desc {
    font-size: var(--fs-base);
  }
  .categories-section {
    padding-top: 4.75rem;
    padding-bottom: 4.75rem;
  }
  .strengths-section {
    padding-top: 4.75rem;
    padding-bottom: 4.75rem;
  }
  .subpage-hero {
    padding-top: calc(var(--header-h-mobile) + var(--space-16));
    padding-bottom: var(--space-12);
  }
  .subpage-title { font-size: var(--fs-3xl); }
  .subpage-tabs { padding-bottom: var(--space-4); }
  .subpage-tab { min-width: auto; flex: 0 0 auto; }

  /* 모바일: 이미지 포지션 조정 + background-attachment fixed 미사용(iOS 성능) */
  .hero {
    min-height: 680px;
    padding-bottom: 3rem;
  }
  .hero-content {
    max-width: 100%;
    transform: translateY(18px);
  }
  .hero-badge {
    padding: var(--space-2) var(--space-3);
    font-size: var(--fs-xs);
    margin-bottom: var(--space-4);
  }
  .hero-title {
    font-size: 1.82rem;
    line-height: 1.2;
    margin-bottom: var(--space-4);
  }
  .hero-desc {
    font-size: .95rem;
    line-height: 1.65;
    margin-bottom: var(--space-6);
  }
  .hero-cta {
    gap: var(--space-3);
  }
  .hero .btn-lg {
    padding: var(--space-4) var(--space-6);
    font-size: var(--fs-base);
  }
  .hero-bg-img {
    background-position: 66% center;
    inset: 0;                        /* 모바일에선 scale 여유분 불필요 */
    opacity: .42;
    animation: hero-ken-burns 28s ease-in-out infinite alternate;
  }
  .hero-bg::before {
    inset: 0;
    opacity: .42;
  }

  /* 모바일: 라이트 배경에서 텍스트 대비 확보 */
  .hero-bg-overlay {
    background:
      linear-gradient(
        90deg,
        rgba(247,249,252,.90) 0%,
        rgba(247,249,252,.84) 56%,
        rgba(247,249,252,.62) 100%
      ),
      linear-gradient(
        to bottom,
        rgba(255,255,255,.38) 0%,
        transparent 25%,
        transparent 65%,
        rgba(238,243,248,.56) 100%
      );
  }
  .theme-dark .hero-bg-overlay {
    background:
      linear-gradient(
        90deg,
        rgba(17,24,39,.94) 0%,
        rgba(17,24,39,.84) 56%,
        rgba(17,24,39,.60) 100%
      ),
      linear-gradient(
        to bottom,
        rgba(17,24,39,.34) 0%,
        transparent 25%,
        transparent 65%,
        rgba(17,24,39,.56) 100%
      );
  }

  .hero-stats {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-3) var(--space-5);
    margin-top: var(--space-6);
    padding-top: var(--space-4);
  }
  .hero-stat-num { font-size: 1.45rem; }
  .hero-stat-label { font-size: .7rem; }
  .hero-scroll { display: none; }

  .categories-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .category-card {
    padding: 2rem;
    min-height: 0;
  }
  .category-icon {
    margin-bottom: 1.5rem;
  }
  .category-name {
    margin-bottom: .875rem;
  }
  .category-desc {
    margin-bottom: 1.375rem;
  }
  .category-items {
    margin-bottom: 1.5rem;
  }
  .strengths-grid { grid-template-columns: 1fr 1fr; }
  .lineup-grid { grid-template-columns: 1fr 1fr; }
  .service-cards { grid-template-columns: 1fr; }

  .service-banner-inner { grid-template-columns: 1fr; }
  .service-banner-actions { flex-direction: row; }

  .quote-form-row { grid-template-columns: 1fr; }
  .greeting-body,
  .history-panel,
  .company-overview-panel,
  .business-panel,
  .komatsu-intro,
  .product-quote-cta {
    padding: var(--space-6);
  }
  .location-card { padding: var(--space-6); }
  .overview-row {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }

  .footer-top { grid-template-columns: 1fr; gap: var(--space-8); }
  .footer-nav { flex-wrap: wrap; gap: var(--space-6); }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .theme-selector {
    width: 100%;
    margin-left: 0;
    justify-content: space-between;
  }

  .floating-contact { bottom: calc(var(--space-6) + 5rem); right: var(--space-5); }
  .floating-modal { right: var(--space-5); width: calc(100vw - 2 * var(--space-5)); }
}

/* 소형 모바일 (480px) */
@media (max-width: 480px) {
  .container { padding-inline: var(--space-4); }
  .section {
    padding-block: 4rem;
  }
  .section-sm {
    padding-block: 3.75rem;
  }
  .section-header {
    margin-bottom: 2.5rem;
  }
  .categories-section {
    padding-top: 4.25rem;
    padding-bottom: 4.25rem;
  }
  .category-card {
    padding: 1.75rem;
  }
  .strengths-grid { grid-template-columns: 1fr; }
  .lineup-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 1.62rem; }
  .hero-cta { flex-direction: column; align-items: flex-start; }
  .service-banner-actions { flex-direction: column; }
  .subpage-title { font-size: var(--fs-2xl); }
  .breadcrumb li { font-size: var(--fs-xs); }
  .greeting-headline { font-size: var(--fs-2xl); }
  .greeting-slogan,
  .greeting-body p,
  .komatsu-intro p,
  .product-family-desc p {
    font-size: var(--fs-base);
  }
  .model-card-grid { grid-template-columns: 1fr; }
  .model-spec-row {
    grid-template-columns: 1fr;
    gap: var(--space-1);
  }
  .product-quote-title { font-size: var(--fs-xl); }
  .komatsu-hero-copy {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  .komatsu-years-badge {
    width: 120px;
    height: 120px;
  }
  .komatsu-years-badge strong { font-size: var(--fs-3xl); }
  .komatsu-quote {
    padding-left: var(--space-6);
    font-size: var(--fs-2xl);
  }
  .komatsu-quote::before { font-size: 3rem; }
  .location-row {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }
  .location-row dd {
    align-items: flex-start;
    flex-direction: column;
  }
  .history-item {
    grid-template-columns: 1fr;
    gap: var(--space-1);
  }
  .komatsu-history-timeline {
    grid-template-columns: 1fr;
  }
  .theme-selector {
    align-items: flex-start;
    flex-direction: column;
  }
  .theme-toggle {
    width: 100%;
  }
  .theme-toggle-btn {
    flex: 1;
  }
}