:root {
  --navy: #102033;
  --navy-dark: #091522;
  --navy-soft: #1d334d;
  --blue: #1f6feb;
  --orange: #f47b20;
  --orange-dark: #d95f08;
  --gray-50: #f6f8fb;
  --gray-100: #edf1f5;
  --gray-300: #cbd5e1;
  --gray-600: #556270;
  --gray-800: #263241;
  --white: #ffffff;
  --shadow: 0 16px 38px rgba(16, 32, 51, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--gray-800);
  font-family: "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", Arial, sans-serif;
  line-height: 1.65;
  word-break: keep-all;
  background: var(--white);
}

body.is-lightbox-open {
  overflow: hidden;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 2000;
  padding: 10px 14px;
  color: var(--white);
  background: var(--navy);
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  width: 100%;
  height: 76px;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(203, 213, 225, 0.75);
  backdrop-filter: blur(10px);
}

.header-inner {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  color: var(--navy);
  font-size: 25px;
  font-weight: 800;
  letter-spacing: 0;
}

.logo::after {
  content: "";
  display: inline-block;
  width: 9px;
  height: 9px;
  margin-left: 8px;
  background: var(--orange);
}

.main-nav > ul {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.main-nav li {
  position: relative;
}

.main-nav a {
  display: block;
  padding: 25px 10px;
  color: var(--navy);
  font-size: 14px;
  font-weight: 700;
}

.main-nav .nav-cta {
  margin-left: 6px;
  padding: 10px 13px;
  color: var(--white);
  background: var(--orange);
}

.main-nav .nav-cta:hover {
  color: var(--white);
  background: var(--orange-dark);
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--orange-dark);
}

.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 190px;
  margin: 0;
  padding: 10px 0;
  list-style: none;
  background: var(--white);
  border: 1px solid var(--gray-100);
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: 0.2s ease;
}

.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown a {
  padding: 10px 18px;
  color: var(--gray-800);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

.dropdown a:hover {
  background: var(--gray-50);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--gray-300);
  background: var(--white);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: var(--navy);
}

main {
  padding-top: 76px;
}

.hero {
  padding: 82px 0 70px;
  color: var(--white);
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 56%, var(--navy-soft) 100%);
}

.corporate-hero {
  min-height: 680px;
  display: flex;
  align-items: center;
  background:
    linear-gradient(110deg, rgba(9, 21, 34, 0.96) 0%, rgba(16, 32, 51, 0.92) 52%, rgba(29, 51, 77, 0.86) 100%),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.08) 0, rgba(255,255,255,0.08) 1px, transparent 1px, transparent 110px);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.85fr);
  align-items: center;
  gap: 52px;
}

.corporate-hero .hero-grid {
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
}

.eyebrow,
.section-label {
  margin: 0 0 12px;
  color: var(--orange);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1,
.page-banner h1 {
  margin: 0;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.18;
  letter-spacing: 0;
}

.hero p {
  max-width: 640px;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: 18px;
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.hero-contact,
.cta-contact-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, max-content));
  gap: 18px;
  margin: 30px 0 0;
}

.hero-contact div,
.cta-contact-list div {
  padding-left: 16px;
  border-left: 3px solid var(--orange);
}

.hero-contact dt,
.cta-contact-list dt {
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
  font-weight: 800;
}

.hero-contact dd,
.cta-contact-list dd {
  margin: 2px 0 0;
  color: var(--white);
  font-size: 18px;
  font-weight: 900;
}

.hero-visual {
  position: relative;
}

.visual-placeholder,
.product-media {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 430px;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 900;
  text-align: center;
  background:
    linear-gradient(135deg, rgba(31, 111, 235, 0.22), rgba(244, 123, 32, 0.16)),
    repeating-linear-gradient(45deg, rgba(255,255,255,0.18) 0, rgba(255,255,255,0.18) 10px, rgba(255,255,255,0.08) 10px, rgba(255,255,255,0.08) 20px);
  border: 1px solid rgba(255,255,255,0.22);
}

.hero-photo {
  padding: 0;
  overflow: hidden;
}

.hero-photo img {
  width: 100%;
  height: 100%;
  min-height: 430px;
  display: block;
  object-fit: cover;
}

.hero-badge {
  position: absolute;
  right: 24px;
  bottom: 24px;
  max-width: 260px;
  padding: 20px;
  color: var(--navy);
  background: var(--white);
  box-shadow: var(--shadow);
}

.hero-badge strong,
.hero-badge span {
  display: block;
}

.hero-badge strong {
  margin-bottom: 6px;
  font-size: 18px;
}

.btn {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid transparent;
  font-weight: 800;
  transition: 0.2s ease;
}

.btn.primary {
  color: var(--white);
  background: var(--orange);
}

.btn.primary:hover {
  background: var(--orange-dark);
}

.btn.secondary {
  color: var(--navy);
  background: var(--white);
  border-color: var(--gray-300);
}

.btn.ghost {
  color: var(--white);
  border-color: rgba(255,255,255,0.45);
  background: transparent;
}

.btn.ghost:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.1);
}

.btn.secondary:hover {
  border-color: var(--orange);
  color: var(--orange-dark);
}

.image-placeholder,
.map-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 260px;
  color: var(--gray-600);
  font-weight: 800;
  text-align: center;
  background:
    linear-gradient(135deg, rgba(16, 32, 51, 0.08), rgba(244, 123, 32, 0.12)),
    repeating-linear-gradient(45deg, #f2f5f8 0, #f2f5f8 10px, #e7edf3 10px, #e7edf3 20px);
  border: 1px solid var(--gray-300);
}

.hero-image {
  min-height: 380px;
  color: rgba(255, 255, 255, 0.88);
  background:
    linear-gradient(135deg, rgba(244, 123, 32, 0.25), rgba(255, 255, 255, 0.08)),
    repeating-linear-gradient(45deg, rgba(255,255,255,0.18) 0, rgba(255,255,255,0.18) 10px, rgba(255,255,255,0.08) 10px, rgba(255,255,255,0.08) 20px);
  border-color: rgba(255, 255, 255, 0.24);
}

.section {
  padding: 82px 0;
}

.section.light {
  background: var(--gray-50);
}

.split,
.feature-band,
.contact-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 46px;
  align-items: center;
}

.split h2,
.section-head h2,
.feature-band h2,
.contact-grid h2 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(26px, 3.2vw, 38px);
  line-height: 1.28;
}

.split p,
.feature-band p,
.contact-grid p,
.content-block p {
  margin: 0 0 16px;
  color: var(--gray-600);
  font-size: 17px;
}

.anchor-section {
  scroll-margin-top: 76px;
}

.greeting-box {
  padding: 30px;
  background: var(--white);
  border-left: 4px solid var(--orange);
  box-shadow: 0 8px 24px rgba(16, 32, 51, 0.06);
}

.greeting-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: 52px;
  align-items: start;
}

.greeting-summary {
  padding-top: 8px;
}

.greeting-summary h2 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(28px, 3.5vw, 42px);
  line-height: 1.28;
}

.greeting-summary p:not(.section-label) {
  margin: 20px 0 0;
  color: var(--gray-600);
  font-size: 17px;
}

.greeting-lead {
  color: var(--navy) !important;
  font-size: 20px !important;
  font-weight: 900;
}

.signature {
  margin-top: 24px !important;
  color: var(--navy) !important;
  font-weight: 900;
  text-align: right;
}

.section-head {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-head-row {
  max-width: none;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.product-card,
.strength-card,
.application-list article {
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--gray-100);
  box-shadow: 0 8px 24px rgba(16, 32, 51, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.product-card:hover,
.strength-card:hover,
.application-list article:hover {
  transform: translateY(-3px);
  border-color: rgba(31, 111, 235, 0.22);
  box-shadow: 0 18px 34px rgba(16, 32, 51, 0.1);
}

.product-media {
  aspect-ratio: 16 / 10;
  min-height: 0;
  overflow: hidden;
  color: var(--gray-600);
  background:
    linear-gradient(135deg, rgba(16, 32, 51, 0.08), rgba(31, 111, 235, 0.10)),
    repeating-linear-gradient(45deg, #f2f5f8 0, #f2f5f8 10px, #e7edf3 10px, #e7edf3 20px);
  border: 0;
  border-bottom: 1px solid var(--gray-100);
}

.product-media img,
.business-image {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.product-body {
  padding: 26px;
}

.product-body span,
.strength-card strong {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

.product-body h3,
.strength-card h3 {
  margin: 0 0 10px;
  color: var(--navy);
  font-size: 22px;
  line-height: 1.32;
}

.product-body p,
.strength-card p,
.application-list p,
.company-preview p {
  margin: 0;
  color: var(--gray-600);
}

.product-body a {
  display: inline-block;
  margin-top: 18px;
  color: var(--orange-dark);
  font-weight: 900;
}

.accent-card {
  color: var(--white);
  background: var(--navy);
  border-color: var(--navy);
}

.accent-card .product-body span,
.accent-card .product-body h3,
.accent-card .product-body a {
  color: var(--white);
}

.accent-card .product-body p {
  color: rgba(255,255,255,0.72);
}

.strength-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.strength-card {
  padding: 30px;
}

.application-layout,
.company-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 52px;
  align-items: start;
}

.sticky-head {
  position: sticky;
  top: 110px;
  margin-bottom: 0;
}

.sticky-head p:not(.section-label) {
  margin: 18px 0 0;
  color: var(--gray-600);
  font-size: 17px;
}

.application-list {
  display: grid;
  gap: 14px;
}

.application-list article {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 24px;
  align-items: center;
  padding: 24px 28px;
}

.application-list span {
  color: var(--navy);
  font-size: 19px;
  font-weight: 900;
}

.company-image {
  width: 100%;
  min-height: 360px;
  height: 100%;
  object-fit: cover;
}

.company-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.contact-cta {
  background:
    linear-gradient(135deg, rgba(9, 21, 34, 1), rgba(16, 32, 51, 0.96)),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.06) 0, rgba(255,255,255,0.06) 1px, transparent 1px, transparent 100px);
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
}

.card-grid,
.three-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.three-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.service-card,
.value-card,
.contact-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  box-shadow: 0 8px 24px rgba(16, 32, 51, 0.06);
}

.service-card,
.value-card {
  padding: 28px;
}

.card-icon {
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  color: var(--white);
  font-weight: 900;
  background: var(--navy);
}

.service-card h3,
.value-card h3,
.business-item h3,
.process-list h3 {
  margin: 0 0 10px;
  color: var(--navy);
  font-size: 21px;
  line-height: 1.3;
}

.service-card p,
.value-card p,
.business-item p,
.process-list p {
  margin: 0;
  color: var(--gray-600);
}

.business-item p + p {
  margin-top: 8px;
}

.feature-band {
  padding: 34px;
  background: var(--white);
  border: 1px solid var(--gray-100);
  box-shadow: var(--shadow);
}

.band-image {
  min-height: 320px;
}

.text-link {
  display: inline-block;
  margin-top: 18px;
  color: var(--orange-dark);
  font-weight: 900;
}

.cta-section {
  padding: 64px 0;
  color: var(--white);
  background: var(--navy);
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.cta-inner h2 {
  margin: 0;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.28;
}

.cta-inner p {
  margin: 12px 0 0;
  color: rgba(255, 255, 255, 0.78);
}

.page-banner {
  padding: 72px 0;
  color: var(--white);
  background: linear-gradient(135deg, var(--navy-dark), var(--navy-soft));
}

.page-banner p {
  margin: 0 0 8px;
  color: var(--orange);
  font-weight: 900;
  text-transform: uppercase;
}

.info-panel {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  background: var(--gray-300);
  border: 1px solid var(--gray-300);
}

.info-panel div {
  padding: 28px;
  background: var(--white);
}

.info-panel span {
  display: block;
  margin-bottom: 8px;
  color: var(--orange-dark);
  font-size: 14px;
  font-weight: 800;
}

.info-panel strong {
  color: var(--navy);
  font-size: 20px;
}

.business-list {
  display: grid;
  gap: 24px;
}

.business-item {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 30px;
  align-items: center;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--gray-100);
  box-shadow: 0 8px 24px rgba(16, 32, 51, 0.06);
  scroll-margin-top: 100px;
}

.business-item .image-placeholder {
  min-height: 190px;
}

.business-image {
  width: 100%;
  height: 200px;
  border: 1px solid var(--gray-100);
}

.business-content {
  min-width: 0;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-list li {
  padding: 28px;
  background: var(--white);
  border-top: 4px solid var(--orange);
  box-shadow: 0 8px 24px rgba(16, 32, 51, 0.06);
}

.process-list span {
  display: block;
  margin-bottom: 18px;
  color: var(--orange-dark);
  font-size: 24px;
  font-weight: 900;
}

.contact-card {
  padding: 32px;
}

.contact-card dl {
  margin: 0;
}

.contact-card div {
  padding: 18px 0;
  border-bottom: 1px solid var(--gray-100);
}

.contact-card div:first-child {
  padding-top: 0;
}

.contact-card div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.contact-card dt {
  margin-bottom: 6px;
  color: var(--orange-dark);
  font-weight: 900;
}

.contact-card dd {
  margin: 0;
  color: var(--navy);
  font-size: 18px;
  font-weight: 800;
}

.location-info-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.8fr 0.9fr 1.2fr;
  gap: 1px;
  overflow: hidden;
  background: var(--gray-300);
  border: 1px solid var(--gray-300);
}

.location-info-grid div {
  min-height: 132px;
  padding: 26px;
  background: var(--white);
}

.location-info-grid span {
  display: block;
  margin-bottom: 10px;
  color: var(--orange-dark);
  font-size: 14px;
  font-weight: 900;
}

.location-info-grid strong {
  display: block;
  color: var(--navy);
  font-size: 18px;
  line-height: 1.45;
}

.location-address strong {
  white-space: nowrap;
}

.location-map-section {
  padding-top: 64px;
}

.inquiry-checklist {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.inquiry-checklist div {
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  color: var(--navy);
  font-weight: 900;
  text-align: center;
  background: var(--white);
  border: 1px solid var(--gray-100);
  box-shadow: 0 8px 24px rgba(16, 32, 51, 0.06);
}

.works-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.work-card {
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--gray-100);
  box-shadow: 0 8px 24px rgba(16, 32, 51, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.work-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 34px rgba(16, 32, 51, 0.1);
}

.work-media {
  aspect-ratio: 4 / 3;
  background: var(--gray-100);
  border: 0;
  cursor: zoom-in;
  padding: 0;
}

.work-media img,
.work-image-fallback {
  width: 100%;
  height: 100%;
}

.work-media img {
  display: block;
  object-fit: cover;
}

.work-image-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  color: var(--gray-600);
  font-weight: 900;
  text-align: center;
  background:
    linear-gradient(135deg, rgba(16, 32, 51, 0.08), rgba(31, 111, 235, 0.1)),
    repeating-linear-gradient(45deg, #f2f5f8 0, #f2f5f8 10px, #e7edf3 10px, #e7edf3 20px);
}

.work-body {
  padding: 24px;
}

.work-body span {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--orange-dark);
  font-size: 13px;
  font-weight: 900;
}

.work-body h3 {
  margin: 0 0 10px;
  color: var(--navy);
  font-size: 21px;
  line-height: 1.35;
}

.work-body p {
  margin: 0 0 16px;
  color: var(--gray-600);
}

.work-body time {
  color: var(--gray-600);
  font-size: 13px;
  font-weight: 700;
}

.gallery-empty {
  grid-column: 1 / -1;
  padding: 44px;
  color: var(--gray-600);
  font-weight: 800;
  text-align: center;
  background: var(--gray-50);
  border: 1px solid var(--gray-100);
}

.tips-intro {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 46px;
  align-items: center;
}

.tips-intro h2,
.tip-layout h2 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.3;
}

.tips-intro p:not(.section-label) {
  margin: 0;
  color: var(--gray-600);
  font-size: 17px;
}

.tips-nav {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.tips-nav a {
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px;
  color: var(--navy);
  font-weight: 900;
  text-align: center;
  background: var(--white);
  border: 1px solid var(--gray-100);
  box-shadow: 0 8px 24px rgba(16, 32, 51, 0.05);
}

.tips-nav a:hover {
  color: var(--orange-dark);
  border-color: rgba(244, 123, 32, 0.3);
}

.tip-section {
  scroll-margin-top: 92px;
}

.tip-layout {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 54px;
  align-items: start;
}

.tip-layout aside {
  position: sticky;
  top: 110px;
}

.tip-article {
  padding: 34px;
  background: var(--white);
  border: 1px solid var(--gray-100);
  box-shadow: 0 8px 24px rgba(16, 32, 51, 0.06);
}

.tip-lead {
  margin: 0 0 26px;
  color: var(--navy);
  font-size: 19px;
  font-weight: 900;
}

.tip-grid,
.site-care-grid,
.belt-table {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.tip-grid div,
.site-care-grid div,
.belt-table div,
.tip-note {
  padding: 22px;
  background: var(--gray-50);
  border: 1px solid var(--gray-100);
}

.tip-grid h3,
.site-care-grid h3,
.belt-table h3 {
  margin: 0 0 10px;
  color: var(--navy);
  font-size: 20px;
}

.tip-grid p,
.site-care-grid p,
.belt-table p,
.tip-note p {
  margin: 0;
  color: var(--gray-600);
}

.tip-grid p + p,
.belt-table p + p {
  margin-top: 8px;
}

.tip-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tip-list li {
  padding: 18px 20px;
  color: var(--gray-600);
  background: var(--gray-50);
  border-left: 4px solid var(--orange);
}

.tip-list strong {
  display: block;
  margin-bottom: 4px;
  color: var(--navy);
}

.tip-note {
  margin-top: 22px;
  border-left: 4px solid var(--blue);
}

.tip-note strong {
  display: block;
  margin-bottom: 8px;
  color: var(--navy);
  font-size: 18px;
}

.gallery-lightbox {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px;
  background: rgba(0, 0, 0, 0.82);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.18s ease, visibility 0.18s ease;
}

.gallery-lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.lightbox-frame {
  max-width: min(92vw, 980px);
  max-height: 88vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #111;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.45);
  transform: scale(0.96);
  transition: transform 0.18s ease;
}

.gallery-lightbox.is-open .lightbox-frame {
  transform: scale(1);
}

.gallery-lightbox img {
  display: block;
  max-width: 92vw;
  max-height: 88vh;
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: 18px;
  right: 20px;
  width: 44px;
  height: 44px;
  color: var(--white);
  font-size: 34px;
  line-height: 1;
  font-weight: 900;
  background: transparent;
  border: 0;
  cursor: pointer;
  opacity: 0.9;
}

.lightbox-close:hover,
.lightbox-close:focus {
  opacity: 1;
}

.map-placeholder {
  min-height: 360px;
}

.kakao-map {
  width: 100%;
  min-height: 420px;
  overflow: hidden;
  background: var(--gray-100);
  border: 1px solid var(--gray-300);
}

.kakao-map .map-placeholder {
  min-height: 420px;
  border: 0;
}

.map-info-window {
  width: 250px;
  max-width: 250px;
  padding: 14px 16px;
  color: var(--gray-800);
  font-size: 14px;
  line-height: 1.45;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.map-info-window strong {
  display: block;
  margin-bottom: 6px;
  color: var(--navy);
  font-size: 16px;
}

.map-info-window span {
  display: block;
  color: var(--gray-600);
}

.site-footer {
  padding: 36px 0;
  color: rgba(255, 255, 255, 0.82);
  background: var(--navy-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr 0.7fr;
  gap: 30px;
  align-items: start;
}

.footer-grid strong {
  display: block;
  margin-bottom: 10px;
  color: var(--white);
  font-size: 22px;
}

.footer-grid p {
  margin: 0 0 6px;
  font-size: 14px;
}

.footer-links {
  display: grid;
  gap: 8px;
  justify-items: end;
}

.footer-links a {
  color: rgba(255,255,255,0.82);
  font-size: 14px;
  font-weight: 700;
}

.copyright {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.62);
  font-size: 13px;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  align-items: center;
}

.footer-inner strong {
  color: var(--white);
  font-size: 18px;
}

.footer-inner p {
  margin: 0;
  font-size: 14px;
}

@media (max-width: 900px) {
  .menu-toggle {
    display: block;
  }

  .main-nav {
    position: absolute;
    top: 76px;
    left: 0;
    width: 100%;
    max-height: calc(100vh - 76px);
    overflow-y: auto;
    background: var(--white);
    border-bottom: 1px solid var(--gray-100);
    box-shadow: var(--shadow);
    display: none;
  }

  .main-nav.is-open {
    display: block;
  }

  .main-nav > ul {
    display: block;
    width: min(1120px, calc(100% - 40px));
    margin: 0 auto;
    padding: 12px 0;
  }

  .main-nav a {
    padding: 14px 0;
  }

  .main-nav .nav-cta {
    display: inline-flex;
    margin: 10px 0 8px;
    padding: 10px 16px;
  }

  .dropdown {
    position: static;
    min-width: 0;
    padding: 0 0 8px 16px;
    border: 0;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    display: block;
  }

  .dropdown a {
    padding: 8px 0;
  }

  .hero-grid,
  .split,
  .feature-band,
  .contact-grid,
  .business-item,
  .corporate-hero .hero-grid,
  .application-layout,
  .company-grid,
  .greeting-layout,
  .tips-intro,
  .tip-layout {
    grid-template-columns: 1fr;
  }

  .card-grid,
  .three-grid,
  .process-list,
  .info-panel,
  .location-info-grid,
  .inquiry-checklist,
  .product-grid,
  .strength-grid,
  .works-gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .location-address {
    grid-column: span 2;
  }

  .sticky-head {
    position: static;
  }

  .application-list article {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .business-item {
    gap: 0;
    align-items: stretch;
    padding: 0;
    overflow: hidden;
  }

  .business-image {
    height: clamp(190px, 62.5vw, 360px);
    min-height: 0;
    aspect-ratio: 16 / 10;
    border: 0;
    border-bottom: 1px solid var(--gray-100);
  }

  .business-content {
    padding: 24px;
  }

  .section-head-row,
  .footer-grid {
    display: grid;
    grid-template-columns: 1fr;
  }

  .footer-links {
    justify-items: start;
  }

  .tip-layout aside {
    position: static;
  }

  .tips-nav,
  .tip-grid,
  .site-care-grid,
  .belt-table {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cta-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .cta-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 620px) {
  .container {
    width: min(100% - 28px, 1120px);
  }

  .site-header,
  .header-inner {
    height: 68px;
  }

  main {
    padding-top: 68px;
  }

  .main-nav {
    top: 68px;
    max-height: calc(100vh - 68px);
  }

  .hero,
  .section,
  .page-banner {
    padding: 54px 0;
  }

  .corporate-hero {
    min-height: auto;
  }

  .hero p,
  .split p,
  .feature-band p,
  .contact-grid p {
    font-size: 16px;
  }

  .hero-image,
  .band-image,
  .image-placeholder,
  .map-placeholder,
  .visual-placeholder {
    min-height: 220px;
  }

  .hero-badge {
    position: static;
    max-width: none;
    margin-top: 14px;
  }

  .hero-contact,
  .cta-contact-list {
    grid-template-columns: 1fr;
  }

  .card-grid,
  .three-grid,
  .process-list,
  .info-panel,
  .location-info-grid,
  .inquiry-checklist,
  .product-grid,
  .strength-grid,
  .works-gallery {
    grid-template-columns: 1fr;
  }

  .location-address {
    grid-column: auto;
  }

  .location-address strong {
    white-space: normal;
  }

  .tips-nav,
  .tip-grid,
  .site-care-grid,
  .belt-table {
    grid-template-columns: 1fr;
  }

  .tip-article {
    padding: 22px;
  }

  .feature-band,
  .service-card,
  .value-card,
  .contact-card {
    padding: 22px;
  }

  .business-item {
    padding: 0;
    display: grid;
    grid-template-columns: 1fr;
    overflow: hidden;
  }

  .product-card {
    overflow: hidden;
  }

  .product-media,
  .business-image {
    min-height: 0;
    aspect-ratio: 16 / 10;
  }

  .product-media img {
    height: 100%;
    object-fit: cover;
  }

  .business-image {
    width: 100%;
    height: clamp(180px, 62.5vw, 320px);
    object-fit: cover;
  }

  .product-body,
  .business-content {
    position: relative;
    z-index: 1;
    background: var(--white);
  }

  .accent-card .product-body {
    background: var(--navy);
  }

  .business-content {
    padding: 22px;
  }

  .footer-inner {
    display: block;
  }

  .footer-inner p {
    margin-top: 6px;
  }

  .copyright {
    display: grid;
  }

  .lightbox-close {
    top: 10px;
    right: 10px;
  }
}