:root {
  --primary: #10243E;
  --secondary: #4B5563;
  --accent: #FFC83D;
  --bg: #FAFAFA;
  --bg-light: #F2F2F2;
  --text: #1A1A1A;
  --border: #D9D9D9;
  --black: var(--primary);
  --blue-deep: #18365C;
  --blue-soft: #F2F2F2;
  --ink: var(--text);
  --muted: var(--secondary);
  --line: var(--border);
  --panel: var(--bg-light);
  --warm: var(--bg);
  --yellow: var(--accent);
  --yellow-dark: #C89500;
  --white: #FFFFFF;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: Arial, "Helvetica Neue", sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
}

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

.container {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 74px;
  padding: 0 28px;
  color: var(--primary);
  background: rgba(250, 250, 250, .97);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 10px 30px rgba(16, 36, 62, .08);
}

.brand {
  display: grid;
  text-decoration: none;
}

.brand span {
  color: var(--yellow);
  font-size: 24px;
  font-weight: 800;
  letter-spacing: .02em;
}

.brand small {
  color: var(--secondary);
  font-size: 11px;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 13px;
  font-weight: 700;
}

.site-nav a,
.nav-products-toggle {
  color: var(--primary);
  text-decoration: none;
  white-space: nowrap;
}

.site-nav a[aria-current="page"],
.site-nav a:hover,
.nav-products-toggle[aria-current="page"],
.nav-products-toggle:hover {
  color: var(--yellow);
}

.nav-products-wrap {
  position: relative;
}

.nav-products-toggle {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 0;
  border: 0;
  background: transparent;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.nav-products-toggle span {
  width: 7px;
  height: 7px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
  transition: transform .25s ease;
}

.nav-products-toggle[aria-expanded="true"] span {
  transform: translateY(2px) rotate(225deg);
}

.nav-products-menu {
  position: absolute;
  top: calc(100% + 16px);
  left: 50%;
  z-index: 30;
  width: min(920px, calc(100vw - 40px));
  padding: 22px;
  border: 1px solid var(--border);
  border-top: 4px solid var(--accent);
  border-radius: 12px;
  background: var(--white);
  box-shadow: 0 24px 60px rgba(16,36,62,.16);
  transform: translateX(-50%);
}

.nav-products-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}

.nav-products-menu-header strong {
  color: var(--primary);
  font-size: 15px;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.nav-products-list {
  display: grid;
}

.nav-product-group {
  display: grid;
  grid-template-columns: minmax(210px, .8fr) minmax(0, 1.6fr);
  gap: 24px;
  align-items: center;
  padding: 15px 4px;
  border-bottom: 1px solid var(--border);
}

.nav-product-group:last-child {
  border-bottom: 0;
}

.nav-product-category,
.nav-product-series {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-product-category > span {
  color: var(--accent);
  font-size: 12px;
  font-weight: 900;
}

.site-nav .nav-product-main {
  color: var(--primary);
  font-size: 14px;
  font-weight: 900;
}

.site-nav .nav-product-series a {
  color: var(--secondary);
  white-space: normal;
  font-size: 12px;
  line-height: 1.35;
}

.site-nav .nav-product-series a + a::before {
  content: "/";
  margin-right: 12px;
  color: var(--border);
}

.site-nav .nav-product-series a:hover {
  color: var(--accent);
}

.language-link {
  padding: 7px 10px;
  color: var(--primary);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.menu-toggle {
  display: none;
  color: var(--black);
  background: var(--yellow);
  border: 0;
  padding: 9px 12px;
  font-weight: 800;
}

.hero {
  position: relative;
  min-height: 620px;
  display: grid;
  align-items: center;
  overflow: hidden;
  color: var(--white);
  background:
    radial-gradient(circle at 72% 42%, rgba(255, 200, 61, .2), transparent 26%),
    linear-gradient(135deg, #10243E 0%, #18365C 100%);
}

.hero-media {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .8s ease, transform 5s ease;
  transform: scale(1.02);
}

.hero-media.is-active {
  opacity: .42;
  transform: scale(1);
}

.hero-arrow {
  position: absolute;
  z-index: 3;
  top: 50%;
  width: 48px;
  height: 48px;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 999px;
  color: var(--white);
  background: rgba(16, 36, 62, .46);
  font-size: 36px;
  line-height: 1;
  cursor: pointer;
  transform: translateY(-50%);
  transition: .3s ease;
}

.hero-arrow:hover {
  color: var(--primary);
  background: var(--accent);
  border-color: var(--accent);
}

.hero-arrow-prev {
  left: 24px;
}

.hero-arrow-next {
  right: 24px;
}

.hero-media picture,
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 22% 34%, rgba(255, 200, 61, .14), transparent 24%),
    linear-gradient(90deg, rgba(16, 36, 62, .9), rgba(24, 54, 92, .56) 55%, rgba(16, 36, 62, .74));
  pointer-events: none;
}

.hero::after,
.page-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: min(46vw, 620px);
  height: 8px;
  background: var(--yellow);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 70px 0 110px;
}

.eyebrow {
  display: inline-block;
  color: var(--yellow);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

.hero h1 {
  max-width: 720px;
  margin: 12px 0 16px;
  font-size: clamp(42px, 7vw, 76px);
  line-height: .98;
}

.hero p,
.page-hero p {
  max-width: 720px;
  font-size: 20px;
}

.hero p {
  color: #f0f0f0;
}

.hero-seo-text {
  color: rgba(255,255,255,.86);
  font-size: 17px;
  line-height: 1.7;
}

.hero-subtitle {
  margin-bottom: 14px;
  color: var(--primary);
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 700;
  line-height: 1.2;
}

.page-hero p {
  color: #555555;
}

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

.hero-dots {
  display: flex;
  gap: 10px;
  margin-top: 34px;
}

.hero-dots button {
  width: 36px;
  height: 4px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, .38);
  cursor: pointer;
  transition: .3s ease;
}

.hero-dots button[aria-current="true"] {
  width: 52px;
  background: var(--accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 28px;
  border: 2px solid transparent;
  border-radius: 12px;
  font-weight: 600;
  text-decoration: none;
  transition: .3s ease;
}

.btn-primary {
  color: var(--black);
  background: var(--yellow);
}

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

.btn-secondary {
  color: currentColor;
  border-color: currentColor;
  background: transparent;
}

.section {
  padding: 76px 0;
}

.band-light {
  background: var(--panel);
}

.band-dark {
  color: var(--ink);
  background: var(--bg-light);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.home-categories-section {
  color: var(--ink);
  background: var(--bg);
}

.home-categories-section .section-heading span {
  color: var(--yellow-dark);
}

.home-categories-section .section-heading h2 {
  color: var(--black);
}

.home-category-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.home-category-card {
  position: relative;
  min-height: 500px;
  display: block;
  overflow: hidden;
  padding: 0;
  color: var(--white);
  background: var(--primary);
  border: 1px solid var(--border);
  border-radius: 12px;
  text-decoration: none;
  isolation: isolate;
  box-shadow: 0 8px 22px rgba(16, 36, 62, .05);
  transition: .3s ease;
}

.home-category-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--spot-x, 82%) var(--spot-y, 70%), rgba(255, 200, 61, .16), transparent 30%);
  opacity: 0;
  transition: opacity .25s ease;
  z-index: 2;
  pointer-events: none;
}

.home-category-card:hover::before {
  opacity: 1;
}

.home-category-card:hover {
  border-color: var(--accent);
  box-shadow: 0 10px 25px rgba(0,0,0,.08);
  transform: translateY(-5px);
}

.home-category-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: -80%;
  z-index: 3;
  width: 45%;
  height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,.18), transparent);
  transform: skewX(-16deg);
  transition: left .65s ease;
  pointer-events: none;
}

.home-category-card:hover::after {
  left: 130%;
}

.home-category-copy {
  position: relative;
  z-index: 2;
  max-width: 92%;
}

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

.home-category-copy span {
  display: block;
  margin-bottom: 12px;
  color: var(--yellow);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.home-category-copy h3 {
  margin-bottom: 18px;
  color: var(--primary);
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.02;
}

.home-category-copy strong {
  color: var(--primary);
  font-size: 15px;
}

.home-category-visual {
  position: absolute;
  inset: 0;
  display: grid;
  align-items: center;
  background: var(--primary);
  transition: transform .35s ease, filter .35s ease;
}

.home-category-card:hover .home-category-visual {
  transform: scale(1.025);
  filter: brightness(1.02) contrast(1.02);
}

.home-category-visual picture,
.home-category-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: var(--primary);
}

.seo-category-grid,
.featured-product-grid,
.application-keyword-grid {
  display: grid;
  gap: 24px;
}

.seo-category-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.featured-product-card,
.application-keyword-grid article,
.seo-copy-panel {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--white);
  box-shadow: 0 12px 28px rgba(16,36,62,.07);
}

.seo-category-card,
.featured-product-card {
  display: grid;
  overflow: hidden;
  color: inherit;
  text-decoration: none;
  transition: .3s ease;
}

.seo-category-card {
  position: relative;
  display: block;
  aspect-ratio: 1 / 1;
  min-height: 0;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 12px;
  background: #111;
  box-shadow: 0 16px 34px rgba(0,0,0,.18);
}

.seo-category-card:hover {
  border-color: rgba(255,200,61,.78);
  box-shadow: 0 18px 42px rgba(0,0,0,.25), 0 0 0 1px rgba(255,200,61,.35);
  transform: translateY(-5px) scale(1.01);
}

.featured-product-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent);
  box-shadow: 0 18px 36px rgba(16,36,62,.12);
}

.seo-category-card:hover .seo-category-image img {
  transform: scale(1.045);
}

.seo-category-image,
.seo-category-image img,
.featured-product-image,
.featured-product-image img {
  width: 100%;
  height: 100%;
}

.seo-category-image img,
.featured-product-image img {
  object-fit: cover;
}

.seo-category-image {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.seo-category-image img {
  object-fit: cover;
  object-position: center;
  transition: transform .35s ease;
}

.featured-product-card > div {
  display: grid;
  align-content: center;
  gap: 12px;
  padding: 24px;
}

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

.seo-category-card span {
  color: var(--white);
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 600;
  text-transform: uppercase;
}

.featured-product-card span {
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.featured-product-card h3,
.application-keyword-grid h3 {
  margin: 0;
  color: var(--primary);
}

.application-keyword-grid p,
.seo-copy-panel p {
  margin: 0;
  color: var(--secondary);
  line-height: 1.7;
}

.seo-category-card h3 {
  margin: 0;
  color: var(--white);
  font-size: clamp(34px, 3.6vw, 52px);
  font-weight: 800;
  line-height: 1.05;
}

.seo-category-card p {
  display: none;
  margin: 0;
  color: rgba(255,255,255,.72);
  line-height: 1.65;
}

.seo-category-card strong {
  color: var(--white);
  font-size: clamp(16px, 1.6vw, 22px);
  font-weight: 700;
  letter-spacing: 0;
  text-transform: none;
}

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

.featured-product-image img {
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background: var(--white);
}

.application-keyword-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.application-keyword-grid article {
  padding: 22px;
}

.application-keyword-grid span {
  color: var(--accent);
  font-weight: 900;
}

.seo-copy-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px;
}

.home-category-ripple {
  position: absolute;
  z-index: 4;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: rgba(255,200,61,.35);
  transform: translate(-50%, -50%) scale(0);
  animation: category-ripple .58s ease-out forwards;
  pointer-events: none;
}

@keyframes category-ripple {
  to {
    opacity: 0;
    transform: translate(-50%, -50%) scale(18);
  }
}

.section-heading {
  margin-bottom: 28px;
}

.section-heading span {
  color: var(--yellow-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.section-heading h2,
.split-layout h2 {
  max-width: 760px;
  margin-bottom: 0;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.12;
}

.card-grid,
.mini-grid,
.content-grid,
.metric-grid,
.process-grid {
  display: grid;
  gap: 18px;
}

.card-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.mini-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.category-card,
.content-card,
.process-grid article,
.contact-panel,
.inquiry-form {
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: 12px;
  transition: .3s ease;
}

.category-card {
  display: grid;
  grid-template-rows: 170px 1fr;
}

.category-card:hover,
.content-card:hover,
.process-grid article:hover {
  box-shadow: 0 12px 30px rgba(0,0,0,.08);
}

.category-card picture,
.category-card img {
  width: 100%;
  height: 170px;
  object-fit: contain;
  background: var(--white);
}

.category-card div,
.content-card,
.process-grid article,
.contact-panel,
.inquiry-form {
  padding: 24px;
}

.category-card h3,
.content-card h2,
.process-grid h3 {
  margin-bottom: 10px;
  font-size: 22px;
  line-height: 1.2;
}

.category-card p,
.content-card p,
.process-grid p {
  color: var(--muted);
}

.text-link {
  color: var(--black);
  font-weight: 800;
  text-decoration-color: var(--yellow);
  text-decoration-thickness: 3px;
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
  gap: 48px;
  align-items: start;
}

.metric-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.metric {
  min-height: 112px;
  display: flex;
  align-items: end;
  padding: 18px;
  border: 1px solid var(--line);
  border-left: 5px solid var(--yellow);
  background: var(--white);
  border-radius: 12px;
  box-shadow: 0 16px 34px rgba(15,23,42,.06);
}

.metric strong {
  font-size: 24px;
  line-height: 1.1;
}

.process-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.process-grid span,
.content-card span {
  color: var(--yellow-dark);
  font-weight: 900;
}

.oem-hero .inner-hero-copy .btn {
  margin-top: 8px;
}

.oem-process-section,
.oem-range-section {
  padding-top: 64px;
  padding-bottom: 64px;
}

.oem-capability-section {
  padding-top: 68px;
  padding-bottom: 68px;
}

.oem-range-section .category-card img {
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background: var(--white);
}

.quality-hero .inner-hero-copy .btn {
  margin-top: 8px;
}

.quality-testing-section,
.quality-process-section {
  padding-top: 64px;
  padding-bottom: 64px;
}

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

.quality-test-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
  box-shadow: 0 16px 34px rgba(15,23,42,.07);
}

.quality-test-image,
.quality-test-image img {
  display: block;
  width: 100%;
}

.quality-test-image img {
  aspect-ratio: 16 / 11;
  object-fit: cover;
}

.quality-test-card div {
  padding: 22px;
}

.quality-test-card h3 {
  margin-bottom: 8px;
  color: var(--primary);
  font-size: 20px;
}

.quality-test-card p {
  margin-bottom: 0;
  color: var(--secondary);
  line-height: 1.65;
}

.knowledge-hero .inner-hero-copy .btn {
  margin-top: 8px;
}

.knowledge-category-section,
.featured-article-section,
.knowledge-product-section,
.knowledge-resource-section,
.latest-article-section {
  padding-top: 64px;
  padding-bottom: 64px;
  background: var(--bg);
}

.featured-article-section,
.latest-article-section {
  background: var(--white);
}

.knowledge-category-grid,
.knowledge-product-grid,
.resource-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

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

.buying-guide-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
  box-shadow: 0 16px 34px rgba(15,23,42,.07);
}

.buying-guide-image,
.buying-guide-image img {
  display: block;
  width: 100%;
}

.buying-guide-image img {
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.buying-guide-card div {
  display: grid;
  gap: 12px;
  padding: 22px;
}

.buying-guide-card h3 {
  margin: 0;
  color: var(--primary);
  font-size: 22px;
  line-height: 1.22;
}

.buying-guide-card p {
  margin: 0;
  color: var(--secondary);
  line-height: 1.6;
}

.knowledge-point-list {
  display: grid;
  gap: 8px;
  margin: 2px 0 0;
  padding: 0;
  list-style: none;
}

.knowledge-point-list li {
  position: relative;
  padding-left: 18px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.45;
}

.knowledge-point-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--yellow);
  transform: translateY(-50%);
}

.buying-guide-card .btn {
  justify-self: start;
  padding: 10px 18px;
}

.knowledge-product-card {
  display: grid;
  grid-template-rows: auto 1fr;
  overflow: hidden;
  min-height: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
  color: inherit;
  text-decoration: none;
  box-shadow: 0 16px 34px rgba(15,23,42,.06);
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}

.knowledge-product-card:hover {
  transform: translateY(-5px);
  border-color: var(--yellow);
  box-shadow: 0 22px 48px rgba(15,23,42,.12);
}

.knowledge-product-image,
.knowledge-product-image img {
  display: block;
  width: 100%;
}

.knowledge-product-image img {
  aspect-ratio: 1 / 1;
  object-fit: contain;
  padding: 18px;
  background: linear-gradient(180deg, #fff 0%, #F7F8FA 100%);
}

.knowledge-product-card > div {
  display: grid;
  gap: 10px;
  padding: 22px;
}

.knowledge-product-card span {
  color: var(--yellow-dark);
  font-weight: 900;
}

.knowledge-product-card h3 {
  margin: 0;
  color: var(--primary);
  font-size: 22px;
}

.knowledge-product-card p {
  margin: 0;
  color: var(--secondary);
  line-height: 1.6;
}

.knowledge-product-card small {
  margin-top: 4px;
  color: var(--yellow-dark);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.knowledge-product-card strong {
  margin-top: 4px;
  color: var(--yellow-dark);
}

.knowledge-category-grid article,
.resource-card,
.article-list article {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
  box-shadow: 0 16px 34px rgba(15,23,42,.06);
}

.knowledge-category-grid article,
.resource-card {
  padding: 26px;
}

.knowledge-category-grid span,
.article-list span {
  color: var(--yellow-dark);
  font-weight: 900;
}

.knowledge-category-grid h3,
.resource-card h3,
.article-list h3 {
  margin: 10px 0 10px;
  color: var(--primary);
}

.knowledge-category-grid p,
.resource-card p,
.article-list p {
  margin-bottom: 0;
  color: var(--secondary);
  line-height: 1.65;
}

.article-list {
  display: grid;
  gap: 16px;
}

.article-list article {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 18px;
  padding: 24px;
  align-items: start;
}

.article-list article h3 {
  margin-top: 0;
  font-size: 22px;
}

.resource-card {
  display: grid;
  color: inherit;
  text-decoration: none;
}

.resource-card strong {
  margin-top: 18px;
  color: var(--yellow-dark);
}

.buyer-resource-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 30px;
  padding: 44px;
  border-radius: 12px;
  color: var(--white);
  background:
    radial-gradient(circle at 18% 35%, rgba(255, 200, 61, .2), transparent 24%),
    linear-gradient(135deg, #10243E 0%, #18365C 100%);
  box-shadow: 0 24px 60px rgba(16,36,62,.18);
}

.buyer-resource-panel h2 {
  margin: 8px 0 12px;
  color: var(--white);
  font-size: clamp(30px, 4vw, 48px);
}

.buyer-resource-panel p {
  max-width: 720px;
  margin: 0;
  color: #E8EEF7;
  font-size: 18px;
  line-height: 1.7;
}

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

.buyer-resource-actions .btn-secondary {
  border-color: rgba(255,255,255,.55);
  color: var(--white);
}

.buyer-resource-actions .btn-secondary:hover {
  border-color: var(--yellow);
  background: rgba(255,255,255,.08);
}

.news-hero {
  background: linear-gradient(135deg, #FAFAFA 0%, #F2F2F2 62%, #E8EBEF 100%);
}

.news-category-section {
  background: var(--white);
}

.news-category-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.news-category-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
  box-shadow: 0 16px 34px rgba(15,23,42,.06);
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}

.news-category-card:hover {
  transform: translateY(-5px);
  border-color: var(--yellow);
  box-shadow: 0 22px 48px rgba(15,23,42,.12);
}

.news-category-image,
.news-category-image img {
  display: block;
  width: 100%;
}

.news-category-image img {
  aspect-ratio: 16 / 11;
  object-fit: cover;
  background: var(--bg-light);
}

.news-category-card div {
  display: grid;
  gap: 12px;
  padding: 24px;
}

.news-category-card span {
  color: var(--yellow-dark);
  font-weight: 900;
}

.news-category-card h3 {
  margin: 0;
  color: var(--primary);
  font-size: 24px;
}

.news-category-card p {
  margin: 0;
  color: var(--secondary);
  line-height: 1.65;
}

.news-summary-section {
  background: var(--bg);
}

.news-summary-grid {
  display: grid;
  gap: 24px;
}

.news-summary-card {
  display: grid;
  grid-template-columns: minmax(360px, .85fr) minmax(0, 1fr);
  align-items: center;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
  box-shadow: 0 16px 34px rgba(15,23,42,.06);
}

.news-summary-image,
.news-summary-image img {
  display: block;
  width: 100%;
}

.news-summary-image img {
  aspect-ratio: 16 / 10;
  height: 100%;
  object-fit: cover;
}

.news-summary-card > div {
  padding: 34px;
}

.news-summary-card h2 {
  margin: 8px 0 12px;
  color: var(--primary);
  font-size: clamp(28px, 4vw, 42px);
}

.news-summary-card p {
  margin: 0;
  color: var(--secondary);
  font-size: 17px;
  line-height: 1.75;
}

.exhibition-news-section {
  background: var(--bg);
}

.exhibition-article-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
  box-shadow: 0 20px 44px rgba(15,23,42,.08);
}

.exhibition-cover-image,
.exhibition-cover-image img {
  display: block;
  width: 100%;
}

.exhibition-cover-image img {
  aspect-ratio: 16 / 8.9;
  object-fit: cover;
  background: var(--bg-light);
}

.exhibition-article-body {
  padding: 34px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 14px;
  color: var(--yellow-dark);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.exhibition-article-body h3 {
  max-width: 940px;
  margin-bottom: 16px;
  color: var(--primary);
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.12;
}

.exhibition-article-body p {
  max-width: 900px;
  color: var(--secondary);
  font-size: 17px;
  line-height: 1.75;
}

.exhibition-article-body .btn {
  margin-top: 8px;
}

.exhibition-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-top: 24px;
}

.exhibition-gallery-item {
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
  box-shadow: 0 14px 30px rgba(15,23,42,.06);
}

.exhibition-gallery-image,
.exhibition-gallery-image img {
  display: block;
  width: 100%;
}

.exhibition-gallery-image img {
  aspect-ratio: 16 / 11;
  object-fit: cover;
}

.exhibition-gallery-item figcaption {
  padding: 14px 16px;
  color: var(--primary);
  font-weight: 800;
}

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

.featured-section,
.news-section {
  background: var(--bg);
}

.knowledge-section {
  background: var(--bg-light);
}

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

.check-list li {
  padding: 14px 16px;
  border-left: 5px solid var(--yellow);
  background: var(--white);
  border-radius: 12px;
  font-weight: 700;
}

.contact-strip {
  padding: 48px 0;
  color: var(--white);
  background:
    radial-gradient(circle at 16% 42%, rgba(255, 200, 61, .18), transparent 26%),
    linear-gradient(135deg, #10243E 0%, #18365C 100%);
  border-top: 0;
  border-bottom: 0;
}

.contact-strip .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.contact-strip p {
  margin-bottom: 0;
  color: #E9EEF5;
}

.about-hero {
  padding: 44px 0 48px;
  background:
    linear-gradient(135deg, #FAFAFA 0%, #F2F2F2 100%);
  border-bottom: 1px solid var(--line);
}

.about-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, .82fr) minmax(600px, 1.18fr);
  gap: 34px;
  align-items: center;
}

.about-hero-copy h1 {
  max-width: 620px;
  margin-bottom: 16px;
  color: var(--primary);
  font-size: clamp(36px, 4.8vw, 56px);
  line-height: 1.08;
}

.about-hero-copy p {
  max-width: 620px;
  color: var(--secondary);
  font-size: 17px;
}

.about-hero-image {
  display: block;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
  box-shadow: 0 24px 50px rgba(16,36,62,.12);
}

.about-hero-image img {
  display: block;
  width: 100%;
  min-height: 470px;
  object-fit: cover;
}

.about-overview-section,
.about-factory-section,
.about-quality-section,
.about-contact-section {
  background: var(--panel);
}

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

.about-stat {
  min-height: 132px;
  display: flex;
  align-items: end;
  padding: 20px;
  border: 1px solid var(--line);
  border-left: 5px solid var(--accent);
  border-radius: 12px;
  background: var(--white);
  box-shadow: 0 16px 34px rgba(16,36,62,.06);
}

.about-stat strong {
  color: var(--primary);
  font-size: 24px;
  line-height: 1.1;
}

.about-factory-grid,
.about-markets-grid {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
  gap: 34px;
  align-items: start;
}

.about-factory-grid > div > p {
  max-width: 560px;
  color: var(--secondary);
}

.about-list-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

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

.about-list-grid article {
  min-height: 104px;
  display: grid;
  align-content: space-between;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
  transition: .3s ease;
}

.about-list-grid article:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(16,36,62,.08);
}

.about-list-grid span {
  color: var(--yellow-dark);
  font-weight: 900;
}

.about-list-grid strong {
  color: var(--primary);
  font-size: 18px;
  line-height: 1.15;
}

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

.cert-grid span {
  display: grid;
  min-height: 74px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--primary);
  background: var(--white);
  font-weight: 900;
}

.about-contact-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 34px;
  border-radius: 12px;
  color: var(--white);
  background:
    radial-gradient(circle at 18% 30%, rgba(255, 200, 61, .18), transparent 26%),
    linear-gradient(135deg, #10243E 0%, #18365C 100%);
}

.about-contact-card h2 {
  color: var(--white);
}

.about-contact-card p {
  color: #E9EEF5;
}

.about-contact-card a:not(.btn) {
  color: var(--accent);
}

.page-hero {
  position: relative;
  padding: 54px 0 60px;
  color: var(--black);
  background:
    linear-gradient(135deg, #FAFAFA 0%, #F2F2F2 72%, #E8EBEF 100%);
  border-bottom: 1px solid var(--line);
}

.inner-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, .82fr) minmax(600px, 1.18fr);
  gap: 34px;
  align-items: center;
}

.inner-hero-copy {
  min-width: 0;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 13px;
}

.breadcrumb a {
  color: var(--primary);
  text-decoration: none;
}

.page-hero h1 {
  max-width: 760px;
  margin-bottom: 12px;
  font-size: clamp(42px, 5.8vw, 68px);
  line-height: 1;
}

.inner-hero-image {
  display: block;
  overflow: hidden;
  width: 100%;
  min-width: 600px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
  box-shadow: 0 24px 50px rgba(16,36,62,.12);
}

.inner-hero-image img {
  display: block;
  width: 100%;
  min-height: 470px;
  object-fit: cover;
}

.page-hero-mark {
  display: block;
  width: 180px;
  margin-top: 24px;
  border: 1px solid var(--line);
  background: var(--white);
  box-shadow: 0 18px 36px rgba(15,23,42,.08);
}

.page-hero-mark img {
  width: 100%;
}

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

.about-proof {
  padding: 56px 0 0;
  background: var(--panel);
}

.about-proof + .section {
  background: var(--panel);
}

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

.proof-metric {
  min-height: 118px;
  color: var(--black);
  border-color: var(--line);
  background: var(--white);
}

.about-content-grid .content-card {
  min-height: 260px;
}

.about-content-grid .content-card p {
  color: var(--secondary);
}

.product-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: 42px;
  align-items: center;
}

.product-directory {
  display: block;
}

.product-directory-main {
  display: grid;
  gap: 24px;
}

.product-accordion {
  display: grid;
  gap: 14px;
}

.product-accordion-item {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--white);
  transition: border-color .3s ease, box-shadow .3s ease;
}

.product-accordion-item[data-open="true"] {
  border-color: var(--accent);
  box-shadow: 0 16px 38px rgba(16,36,62,.09);
}

.product-accordion-trigger {
  display: grid;
  grid-template-columns: 54px minmax(220px, .8fr) minmax(300px, 1.4fr) 42px;
  gap: 18px;
  align-items: center;
  width: 100%;
  min-height: 82px;
  padding: 18px 22px;
  border: 0;
  color: var(--primary);
  background: var(--white);
  text-align: left;
  cursor: pointer;
  transition: background .3s ease;
}

.product-accordion-trigger:hover,
.product-accordion-trigger:focus-visible {
  background: var(--bg-light);
}

.product-accordion-number {
  color: var(--accent);
  font-size: 15px;
  font-weight: 900;
}

.product-accordion-title {
  font-size: 22px;
  font-weight: 900;
  line-height: 1.15;
}

.product-accordion-summary {
  color: var(--secondary);
  font-size: 14px;
  line-height: 1.55;
}

.product-accordion-icon {
  position: relative;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
}

.product-accordion-icon::before,
.product-accordion-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 14px;
  height: 2px;
  background: var(--primary);
  transform: translate(-50%, -50%);
  transition: transform .3s ease;
}

.product-accordion-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.product-accordion-item[data-open="true"] .product-accordion-icon::after {
  transform: translate(-50%, -50%) rotate(0);
}

.product-accordion-panel {
  animation: product-panel-in .3s ease;
}

.product-accordion-panel-inner {
  padding: 4px 22px 24px 94px;
  border-top: 1px solid var(--border);
}

.product-directory-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
}

.product-directory-heading span {
  color: var(--accent);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

@keyframes product-panel-in {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.series-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.series-directory-card {
  display: grid;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  background: var(--bg);
  text-decoration: none;
  transition: .3s ease;
}

.series-directory-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 34px rgba(16,36,62,.1);
}

.series-directory-image img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  background: var(--white);
}

.series-directory-card div {
  display: grid;
  gap: 8px;
  padding: 16px;
}

.series-directory-card h3 {
  margin: 0;
  color: var(--primary);
  font-size: 20px;
  line-height: 1.15;
}

.series-directory-card p {
  margin: 0;
  color: var(--secondary);
}

.product-gallery {
  display: grid;
  gap: 12px;
}

.gallery-main {
  width: 100%;
  padding: 0;
  border: 1px solid var(--border);
  background: var(--white);
  border-radius: 12px;
  cursor: zoom-in;
}

.gallery-main-picture,
.gallery-main-picture img {
  width: 100%;
}

.gallery-thumbs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.gallery-thumbs button {
  padding: 0;
  border: 2px solid transparent;
  background: var(--white);
  border-radius: 12px;
  cursor: pointer;
}

.gallery-thumbs button[aria-current] {
  border-color: var(--yellow);
}

.gallery-thumb-picture img {
  aspect-ratio: 4 / 3;
  width: 100%;
  object-fit: cover;
}

.gallery-modal[hidden] {
  display: none;
}

.gallery-modal {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  grid-template-columns: 48px minmax(0, 900px) 48px;
  gap: 16px;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(15,23,42,.88);
}

.gallery-modal-image {
  background: var(--white);
  border-radius: 12px;
}

.gallery-modal-picture img {
  width: 100%;
  max-height: 82vh;
  object-fit: contain;
}

.gallery-close,
.gallery-prev,
.gallery-next {
  border: 1px solid rgba(255,255,255,.28);
  color: var(--white);
  background: rgba(255,255,255,.1);
  font-size: 34px;
  cursor: pointer;
}

.gallery-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 44px;
  height: 44px;
}

body.modal-open {
  overflow: hidden;
}

.model-section {
  background: var(--bg);
}

.model-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.model-card {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--white);
  box-shadow: 0 12px 30px rgba(16, 36, 62, .06);
}

.model-card-image img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background: var(--white);
}

.model-card > div {
  display: grid;
  gap: 12px;
  padding: 22px;
}

.model-card span {
  color: var(--accent);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .08em;
}

.model-card h3 {
  margin: 0;
  color: var(--primary);
  font-size: 24px;
  line-height: 1.15;
}

.model-card p {
  margin: 0;
  color: var(--secondary);
}

.model-card dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
}

.model-card dt {
  color: var(--secondary);
  font-size: 12px;
  text-transform: uppercase;
}

.model-card dd {
  margin: 0;
  color: var(--text);
  font-size: 20px;
  font-weight: 800;
}

.spec-table-wrap {
  margin-top: 34px;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--white);
}

.spec-table-wrap h2 {
  margin: 0;
  padding: 20px 22px 0;
  color: var(--primary);
  font-size: 24px;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 620px;
}

.spec-table th,
.spec-table td {
  padding: 16px 22px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.spec-table th {
  color: var(--primary);
  background: var(--bg-light);
}

.spec-table tbody th {
  width: 210px;
  font-weight: 800;
}

.spec-table tr:last-child td {
  border-bottom: 0;
}

.model-inquiry-form {
  margin-top: 34px;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  background: var(--bg-light);
}

.series-faq {
  display: grid;
  gap: 12px;
  margin-top: 34px;
}

.series-faq h2 {
  margin-bottom: 4px;
  color: var(--primary);
}

.series-faq details {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
  background: var(--white);
}

.series-faq summary {
  color: var(--primary);
  cursor: pointer;
  font-weight: 800;
}

.series-faq p {
  margin: 10px 0 0;
  color: var(--secondary);
}

.series-hero .product-gallery {
  max-width: 460px;
  justify-self: end;
}

.series-highlight-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 22px 0 26px;
  padding: 0;
  list-style: none;
}

.series-highlight-list li {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 12px;
  color: var(--primary);
  background: var(--white);
  font-weight: 800;
}

.series-model-section,
.series-details-section,
.series-application-section {
  background: var(--bg-light);
}

.series-model-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.series-model-card {
  min-height: 150px;
  display: grid;
  align-content: end;
  gap: 8px;
  padding: 18px;
  border: 1px solid var(--border);
  border-left: 5px solid var(--accent);
  border-radius: 12px;
  background: var(--white);
  box-shadow: 0 16px 34px rgba(16,36,62,.06);
}

.series-model-card span {
  color: var(--primary);
  font-size: 24px;
  font-weight: 900;
}

.series-model-card strong {
  color: var(--text);
  font-size: 20px;
}

.series-model-card p {
  margin: 0;
  color: var(--secondary);
  font-weight: 800;
}

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

.feature-tile-grid article,
.detail-gallery-grid article {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--white);
  box-shadow: 0 12px 30px rgba(16,36,62,.06);
}

.feature-tile-grid article {
  min-height: 120px;
  display: grid;
  align-items: end;
  padding: 18px;
  border-left: 5px solid var(--accent);
}

.feature-tile-grid strong {
  color: var(--primary);
  font-size: 22px;
  line-height: 1.15;
}

.detail-gallery-grid article {
  overflow: hidden;
}

.detail-gallery-image img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background: var(--white);
}

.detail-gallery-grid h3 {
  margin: 0;
  padding: 16px;
  color: var(--primary);
  font-size: 20px;
}

.overview-panel {
  max-width: 980px;
  padding: 28px;
  border: 1px solid rgba(16,36,62,.12);
  border-radius: 12px;
  background: linear-gradient(135deg, var(--white) 0%, #f5f7fa 100%);
  box-shadow: 0 14px 30px rgba(16,36,62,.07);
}

.overview-panel p {
  margin: 0;
  color: var(--secondary);
  font-size: 18px;
  line-height: 1.75;
}

.compact-spec-layout {
  display: grid;
  gap: 24px;
}

.common-spec-table {
  min-width: 0;
}

.single-application-card {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--white);
  box-shadow: 0 16px 34px rgba(16,36,62,.08);
}

.single-application-image,
.single-application-image img {
  display: block;
  width: 100%;
}

.single-application-image img {
  max-height: 520px;
  object-fit: cover;
}

.single-application-card p {
  margin: 0;
  padding: 22px 24px;
  color: var(--primary);
  font-size: 20px;
  font-weight: 800;
}

.scene-section {
  background: var(--bg-light);
}

.scene-grid {
  display: grid;
  gap: 24px;
}

.scene-card {
  display: grid;
  grid-template-columns: minmax(280px, .86fr) minmax(0, 1.5fr);
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.scene-copy {
  display: grid;
  align-content: center;
  gap: 14px;
  padding: 34px;
}

.scene-copy span {
  color: var(--accent);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.scene-copy h3 {
  margin: 0;
  color: var(--primary);
  font-size: clamp(28px, 3.5vw, 44px);
  line-height: 1.05;
}

.scene-copy p {
  margin: 0;
  color: var(--secondary);
}

.scene-image,
.scene-image img {
  display: block;
  width: 100%;
  height: 100%;
}

.scene-image img {
  min-height: 420px;
  object-fit: cover;
}

.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.quick-links a {
  padding: 12px 16px;
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: 12px;
  font-weight: 800;
  text-decoration: none;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: 24px;
}

.contact-panel {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}

.contact-panel a {
  color: var(--yellow);
}

.inquiry-form {
  display: grid;
  gap: 16px;
}

.inquiry-form label {
  display: grid;
  gap: 6px;
  font-weight: 700;
}

.inquiry-form input,
.inquiry-form select,
.inquiry-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  font: inherit;
}

.mailto-fallback {
  color: var(--muted);
  font-size: 14px;
}

.form-response {
  margin: 0;
  color: var(--yellow-dark);
  font-weight: 700;
}

.site-footer {
  padding: 44px 0 0;
  color: #E9EEF5;
  background: var(--primary);
  border-top: 3px solid var(--yellow);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr .95fr 1fr 1.25fr;
  gap: 30px;
  align-items: start;
}

.footer-grid strong {
  color: var(--yellow);
}

.footer-grid h2 {
  margin: 0 0 14px;
  color: #FFFFFF;
  font-size: 18px;
  line-height: 1.25;
}

.footer-grid p {
  margin: 0 0 8px;
  color: #CBD5E1;
  font-size: 15px;
  line-height: 1.6;
}

.footer-company p {
  max-width: 320px;
}

.footer-links {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.footer-links a {
  color: #CBD5E1;
  text-decoration: none;
  font-size: 15px;
  transition: .3s ease;
}

.footer-links a:hover {
  color: var(--accent);
  transform: translateX(3px);
}

.footer-contact a {
  color: #CBD5E1;
  text-decoration: none;
}

.footer-contact a:hover {
  color: var(--accent);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 34px;
  padding: 16px 0;
  border-top: 1px solid rgba(255, 255, 255, .12);
}

.footer-bottom p {
  margin: 0;
  color: #CBD5E1;
  font-size: 14px;
}

.footer-bottom div {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom a {
  color: #CBD5E1;
  text-decoration: none;
  font-size: 14px;
}

.footer-bottom a:hover {
  color: var(--accent);
}

@media (max-width: 980px) {
  .menu-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 74px;
    right: 0;
    left: 0;
    display: none;
    padding: 18px 28px 24px;
    background: var(--white);
    border-bottom: 4px solid var(--yellow);
    box-shadow: 0 18px 40px rgba(16, 36, 62, .1);
  }

  .site-nav.is-open {
    display: grid;
  }

  .nav-products-menu {
    position: static;
    width: 100%;
    margin-top: 4px;
    padding: 12px;
    transform: none;
    box-shadow: none;
  }

  .nav-products-toggle {
    justify-content: space-between;
    width: 100%;
  }

  .nav-product-group {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .nav-product-series {
    flex-wrap: wrap;
    padding-left: 32px;
  }

  .card-grid,
  .mini-grid,
  .process-grid,
  .content-grid,
  .proof-grid,
  .model-grid,
  .feature-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .split-layout,
  .product-hero-grid,
  .product-directory,
  .scene-card,
  .inner-hero-grid,
  .about-hero-grid,
  .about-factory-grid,
  .about-markets-grid,
  .contact-grid,
  .news-summary-card,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .about-stat-grid,
  .about-process-list,
  .series-model-grid,
  .feature-tile-grid,
  .quality-test-grid,
  .buying-guide-grid,
  .knowledge-category-grid,
  .knowledge-product-grid,
  .news-category-grid,
  .exhibition-gallery-grid,
  .resource-grid,
  .detail-gallery-grid,
  .series-card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .series-hero .product-gallery {
    justify-self: stretch;
    max-width: none;
  }

  .buyer-resource-panel {
    grid-template-columns: 1fr;
  }

  .buyer-resource-actions {
    justify-content: flex-start;
  }

  .home-category-grid {
    grid-template-columns: 1fr;
  }

  .seo-category-grid,
  .featured-product-grid,
  .application-keyword-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .seo-category-card {
    grid-template-columns: 1fr;
  }

  .seo-category-image img {
    aspect-ratio: 16 / 10;
  }

  .seo-copy-panel {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .site-header {
    padding: 0 16px;
  }

  .hero {
    min-height: 560px;
  }

  .hero-arrow {
    top: auto;
    bottom: 24px;
    width: 42px;
    height: 42px;
    font-size: 30px;
  }

  .hero-arrow-prev {
    right: 74px;
    left: auto;
  }

  .hero-arrow-next {
    right: 24px;
  }

  .section {
    padding: 54px 0;
  }

  .card-grid,
  .mini-grid,
  .process-grid,
  .content-grid,
  .proof-grid,
  .metric-grid,
  .model-grid,
  .about-stat-grid,
  .about-list-grid,
  .about-process-list,
  .cert-grid,
  .series-highlight-list,
  .series-model-grid,
  .feature-tile-grid,
  .quality-test-grid,
  .buying-guide-grid,
  .knowledge-category-grid,
  .knowledge-product-grid,
  .news-category-grid,
  .exhibition-gallery-grid,
  .resource-grid,
  .detail-gallery-grid,
  .nav-products-grid,
  .series-card-grid,
  .seo-category-grid,
  .featured-product-grid,
  .application-keyword-grid,
  .feature-list {
    grid-template-columns: 1fr;
  }

  .product-directory-heading {
    display: grid;
  }

  .product-accordion-trigger {
    grid-template-columns: 42px minmax(0, 1fr) 36px;
    gap: 12px;
    min-height: 72px;
    padding: 16px;
  }

  .article-list article {
    grid-template-columns: 1fr;
  }

  .product-accordion-summary {
    display: none;
  }

  .product-accordion-title {
    font-size: 18px;
  }

  .product-accordion-panel-inner {
    padding: 0 16px 18px;
  }

  .about-hero {
    padding: 42px 0 48px;
  }

  .about-hero-image img {
    min-height: 280px;
  }

  .inner-hero-image {
    min-width: 0;
  }

  .inner-hero-image img {
    min-height: 280px;
  }

  .about-contact-card {
    display: grid;
    padding: 26px;
  }

  .home-category-card {
    min-height: 500px;
    padding: 24px;
  }

  .home-category-copy {
    max-width: 100%;
  }

  .home-category-visual {
    min-height: 270px;
  }

  .scene-copy {
    padding: 26px;
  }

  .scene-image img {
    min-height: 300px;
  }

  .contact-strip .container {
    display: grid;
  }
}