:root {
  --blue: #005a9c;
  --blue-dark: #073763;
  --ink: #1d252d;
  --muted: #5c6975;
  --line: #d9e2ea;
  --soft: #f4f7fa;
  --white: #ffffff;
  --max: 1180px;
}

* { box-sizing: border-box; }

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 0 max(22px, calc((100vw - var(--max)) / 2));
  background: rgba(255, 255, 255, .98);
  border-bottom: 1px solid var(--line);
}

.logo {
  text-decoration: none;
  font-weight: 800;
  color: var(--blue-dark);
  font-size: 28px;
  line-height: 1;
}

.logo small {
  display: block;
  margin-top: 5px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--muted);
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.site-nav a,
.dropdown-toggle {
  border: 0;
  background: transparent;
  text-decoration: none;
  color: var(--ink);
  font: inherit;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
}

.site-nav a:hover,
.dropdown-toggle:hover { color: var(--blue); }

.dropdown { position: relative; }

.dropdown-menu {
  position: absolute;
  top: 32px;
  left: 0;
  min-width: 280px;
  display: none;
  padding: 10px;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 18px 35px rgba(7, 55, 99, .14);
}

.dropdown-menu a {
  display: block;
  padding: 9px 10px;
  border-radius: 4px;
}

.dropdown-menu a:hover { background: var(--soft); }
.dropdown:hover .dropdown-menu,
.dropdown.open .dropdown-menu { display: block; }

.nav-toggle { display: none; }

.hero,
.page-hero,
.section,
.cta-band,
.site-footer {
  padding-left: max(22px, calc((100vw - var(--max)) / 2));
  padding-right: max(22px, calc((100vw - var(--max)) / 2));
}

.hero {
  display: grid;
  grid-template-columns: 1.06fr .94fr;
  gap: 46px;
  align-items: center;
  min-height: 640px;
  background: linear-gradient(100deg, #eef4f8 0%, #ffffff 58%);
}

.hero-aerial,
.visual-hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 680px;
  overflow: hidden;
  color: var(--white);
  background: #101820;
}

.visual-hero {
  min-height: 520px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(8, 24, 39, .84) 0%, rgba(8, 24, 39, .58) 44%, rgba(8, 24, 39, .18) 100%),
    linear-gradient(0deg, rgba(8, 24, 39, .34), rgba(8, 24, 39, .08));
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.hero h1,
.page-hero h1 {
  margin: 0 0 20px;
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1.04;
  letter-spacing: 0;
}

.hero p,
.page-hero p {
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
}

.hero-aerial p,
.visual-hero p {
  color: #e6eef5;
}

.hero-aerial .eyebrow,
.visual-hero .eyebrow {
  color: #79c7ff;
}

.hero-aerial .btn {
  border-color: #0066cc;
  background: #0066cc;
  color: #ffffff;
}

.hero-aerial .btn.secondary.light {
  border: 1px solid #0066cc;
  background: #ffffff;
  color: #0066cc;
}

.hero img {
  width: 100%;
  height: 450px;
  object-fit: cover;
  border-radius: 6px;
}

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

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid var(--blue);
  border-radius: 4px;
  background: var(--blue);
  color: var(--white);
  text-decoration: none;
  font-weight: 800;
}

.btn.secondary {
  background: var(--white);
  color: var(--blue);
}

.btn.secondary.light {
  border-color: rgba(255, 255, 255, .84);
  background: rgba(255, 255, 255, .12);
  color: var(--white);
}

.btn.dark {
  background: var(--blue-dark);
  border-color: var(--blue-dark);
}

.section {
  padding-top: 76px;
  padding-bottom: 76px;
}

.section.muted { background: var(--soft); }

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

.company-intro {
  background: #eef4f8;
}

.applications-overview {
  background: var(--white);
}

.factory-video-section {
  background: #eef4f8;
}

.section-head {
  max-width: 820px;
  margin-bottom: 34px;
}

.section h2 {
  margin: 0 0 14px;
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.15;
}

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

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.metric-card {
  min-height: 150px;
  padding: 28px;
  background: var(--white);
}

.metric-card strong {
  display: block;
  color: var(--blue-dark);
  font-size: clamp(34px, 4vw, 54px);
  line-height: 1;
}

.metric-card span {
  display: block;
  margin-top: 14px;
  color: var(--muted);
  font-weight: 800;
}

.card,
.product-card,
.industry-card,
.download-card,
.contact-card {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--white);
  overflow: hidden;
}

.card,
.industry-card,
.download-card,
.contact-card { padding: 24px; }

.product-card a {
  display: block;
  height: 100%;
  text-decoration: none;
}

.product-card img {
  width: 100%;
  height: 220px;
  object-fit: contain;
  padding: 18px;
  background: #f9fbfd;
}

.product-card h3,
.product-card p,
.product-card span {
  margin-left: 20px;
  margin-right: 20px;
}

.product-card p,
.industry-card p,
.card p { color: var(--muted); }

.product-card span {
  display: block;
  margin-bottom: 22px;
  color: var(--blue);
  font-weight: 800;
}

.text-card a {
  padding: 28px;
}

.text-card h3,
.text-card p,
.text-card span {
  margin-left: 0;
  margin-right: 0;
}

.factory-preview {
  padding: 76px max(22px, calc((100vw - var(--max)) / 2));
  background: #eef4f8;
}

.factory-page-preview {
  background: var(--white);
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  width: 100vw;
  margin-left: calc(50% - 50vw);
}

.preview-grid figure {
  position: relative;
  min-height: 420px;
  margin: 0;
  overflow: hidden;
  background: #101820;
}

.preview-grid img {
  width: 100%;
  height: 100%;
  min-height: 420px;
  object-fit: cover;
}

.preview-grid figcaption {
  position: absolute;
  left: 24px;
  bottom: 24px;
  padding: 10px 14px;
  background: rgba(8, 24, 39, .78);
  color: var(--white);
  font-weight: 800;
}

.video-feature,
.video-grid {
  margin-top: 34px;
}

.section-actions {
  margin-top: 28px;
}

.video-feature video,
.video-grid video {
  width: 100%;
  display: block;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #101820;
}

.video-feature video {
  max-height: 620px;
  object-fit: cover;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.video-grid article {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--white);
}

.video-grid h3 {
  margin: 0 0 14px;
  color: var(--blue-dark);
}

.video-grid video {
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

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

.news-card {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--white);
  overflow: hidden;
}

.news-card a {
  display: block;
  min-height: 100%;
  padding: 24px;
  text-decoration: none;
}

.news-card h3 {
  margin: 0 0 12px;
  color: var(--blue-dark);
  line-height: 1.25;
}

.news-card p {
  color: var(--muted);
}

.news-card span {
  color: var(--blue);
  font-weight: 800;
}

.article-page {
  max-width: 920px;
  margin: 0 auto;
  padding: 64px 22px 86px;
}

.article-page h1 {
  margin: 0 0 22px;
  font-size: clamp(34px, 4vw, 58px);
  line-height: 1.08;
}

.article-page h2 {
  margin-top: 42px;
  color: var(--blue-dark);
}

.article-page h3 {
  margin-top: 28px;
}

.article-page p {
  color: var(--muted);
  font-size: 17px;
}

.article-page a {
  color: var(--blue);
  font-weight: 800;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 14px;
}

.breadcrumbs a {
  text-decoration: none;
}

.breadcrumbs span::before {
  content: "/";
  margin-right: 8px;
  color: #9aa8b4;
}

.faq-section {
  background: var(--soft);
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--white);
}

.faq-list summary {
  cursor: pointer;
  padding: 16px 18px;
  color: var(--blue-dark);
  font-weight: 800;
}

.faq-list details p {
  margin: 0;
  padding: 0 18px 18px;
  color: var(--muted);
}

.article-cta {
  margin-top: 44px;
  padding: 28px;
  border-radius: 6px;
  background: var(--soft);
  border: 1px solid var(--line);
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px;
  align-items: start;
}

.check-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding: 12px 0 12px 30px;
  border-bottom: 1px solid var(--line);
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 9px;
  height: 9px;
  background: var(--blue);
}

.page-hero {
  padding-top: 86px;
  padding-bottom: 70px;
  background: var(--soft);
}

.product-hero {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 42px;
  align-items: center;
}

.product-hero img {
  width: 100%;
  height: 390px;
  object-fit: contain;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--white);
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border: 1px solid var(--line);
}

.spec-table th,
.spec-table td {
  text-align: left;
  padding: 14px;
  border-bottom: 1px solid var(--line);
}

.spec-table th {
  width: 32%;
  color: var(--blue-dark);
  background: #f8fafc;
}

.gallery,
.certificate-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.gallery img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  border-radius: 6px;
}

.certificate-grid figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 14px;
  background: var(--white);
}

.certificate-grid img {
  width: 100%;
  height: 310px;
  object-fit: contain;
  background: #f9fbfd;
}

.certificate-grid figcaption {
  margin-top: 10px;
  font-size: 14px;
  font-weight: 800;
}

.contact-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 28px;
}

.quote-form {
  display: grid;
  gap: 14px;
}

.quote-form label {
  display: grid;
  gap: 7px;
  font-weight: 800;
}

.quote-form input,
.quote-form select,
.quote-form textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
  font: inherit;
}

.location-section {
  background: var(--soft);
}

.location-card {
  display: grid;
  grid-template-columns: .92fr 1.08fr;
  gap: 28px;
  align-items: stretch;
}

.location-info,
.map-card {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--white);
  overflow: hidden;
  box-shadow: 0 14px 34px rgba(7, 55, 99, .08);
}

.location-info {
  padding: 28px;
}

.location-info h2 {
  margin: 0 0 18px;
  color: var(--blue-dark);
}

.location-info dl {
  display: grid;
  grid-template-columns: 128px 1fr;
  gap: 10px 16px;
  margin: 0 0 24px;
}

.location-info dt {
  color: var(--blue-dark);
  font-weight: 800;
}

.location-info dd {
  margin: 0;
  color: var(--muted);
}

.location-info a:not(.btn) {
  color: var(--blue);
  font-weight: 800;
  text-decoration: none;
}

.map-card iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 460px;
  border: 0;
}

.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 42px;
  padding-bottom: 42px;
  background: var(--blue-dark);
  color: var(--white);
}

.cta-band p { color: #dbeaf5; }
.cta-band .btn { border-color: var(--white); }

.site-footer {
  padding-top: 48px;
  padding-bottom: 28px;
  color: #dbe4ec;
  background: #151d24;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr .9fr 1fr;
  gap: 36px;
}

.site-footer a {
  display: block;
  margin: 8px 0;
  color: #eef6fc;
  text-decoration: none;
}

.copyright {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid #2d3944;
  color: #9caab5;
}

.floating-contact {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 25;
  display: flex;
  gap: 8px;
}

.floating-contact a {
  padding: 11px 14px;
  border-radius: 999px;
  background: var(--blue);
  color: var(--white);
  text-decoration: none;
  font-weight: 800;
  box-shadow: 0 10px 25px rgba(0, 0, 0, .2);
}

@media (max-width: 900px) {
  .nav-toggle {
    display: block;
    padding: 8px 10px;
    border: 1px solid var(--line);
    border-radius: 4px;
    background: var(--white);
    font-weight: 800;
  }

  .site-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 18px 22px;
    background: var(--white);
    border-bottom: 1px solid var(--line);
  }

  .site-nav.open { display: flex; }
  .dropdown-menu { position: static; display: none; box-shadow: none; }
  .dropdown.open .dropdown-menu { display: block; }

  .hero,
  .split,
  .product-hero,
  .contact-grid,
  .location-card,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 54px;
    padding-bottom: 54px;
  }

  .hero-aerial,
  .visual-hero {
    min-height: 560px;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(8, 24, 39, .9), rgba(8, 24, 39, .52));
  }

  .hero img,
  .product-hero img { height: 320px; }

  .hero-aerial .hero-bg,
  .visual-hero .hero-bg {
    height: 100%;
  }

  .grid-3,
  .product-grid,
  .industry-grid,
  .news-grid,
  .gallery,
  .certificate-grid {
    grid-template-columns: 1fr;
  }

  .cta-band { display: block; }
  .cta-band .btn { margin-top: 16px; }
  .section { padding-top: 52px; padding-bottom: 52px; }

  .location-info dl {
    grid-template-columns: 1fr;
  }

  .location-info dt {
    margin-top: 8px;
  }

  .map-card iframe {
    min-height: 340px;
  }
  .metric-grid,
  .preview-grid,
  .video-grid {
    grid-template-columns: 1fr;
  }

  .factory-preview {
    padding-top: 52px;
    padding-bottom: 52px;
  }

  .preview-grid figure,
  .preview-grid img {
    min-height: 300px;
  }
}