:root {
  color-scheme: dark;
  color: #1f2937;
  background: #f7fafc;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: clamp(16px, 1.02vw, 18px);
  line-height: 1.6;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: linear-gradient(180deg, #f8fbff 0%, #eef4fb 100%);
  color: #1f2937;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: #004b7c;
  text-decoration: none;
}
a:hover,
a:focus {
  text-decoration: underline;
}
.container {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}
.eyebrow {
  margin: 0 0 0.5rem;
  color: #0f4c81;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: #ffffff;
  box-shadow: 0 14px 40px rgba(15, 76, 129, 0.08);
  border-bottom: 1px solid rgba(15, 76, 129, 0.12);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0.5rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.site-logo {
  max-width: 220px;
  width: auto;
  height: 60px;
  display: block;
}
.brand h1 {
  margin: 0;
  font-size: 1rem;
}
.nav-toggle {
  display: none;
  border: 1px solid #0f4c81;
  background: #ffffff;
  color: #0f4c81;
  padding: 0.8rem 1rem;
  border-radius: 40px;
  cursor: pointer;
}
.site-nav {
  display: flex;
  gap: 1rem;
  align-items: center;
  padding: 0.5rem 0;
}
.site-nav a {
  display: inline-flex;
  align-items: center;
  padding: 0.8rem 1rem;
  border-radius: 999px;
  color: #0f3553;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.site-nav a:hover,
.site-nav a:focus {
  background: rgba(0, 75, 124, 0.08);
  color: #00345a;
  transform: translateY(-1px);
}
.product-subnav {
  background: #f4fbff;
  border-top: 1px solid rgba(15, 76, 129, 0.08);
  border-bottom: 1px solid rgba(15, 76, 129, 0.08);
}
.product-subnav .container {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 0.85rem 0;
}
.product-subnav a {
  color: #004b7c;
  text-decoration: none;
  font-weight: 700;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  background: rgba(0, 75, 124, 0.05);
}
.product-subnav a:hover,
.product-subnav a:focus {
  background: rgba(0, 75, 124, 0.12);
}
.hero {
  padding: 4rem 0 3rem;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: center;
}
.hero-copy h2 {
  margin: 0;
  font-size: clamp(2.5rem, 3.6vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}
.hero-copy p {
  max-width: 640px;
  color: #475569;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.75rem;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.6rem;
  border-radius: 999px;
  border: none;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.button:hover {
  transform: translateY(-1px);
}
.button-primary {
  background: #004b7c;
  color: #ffffff;
}
.button-secondary {
  background: #ffffff;
  color: #004b7c;
  border: 1px solid #0f4c81;
}
.hero-visual {
  position: relative;
  min-height: 360px;
  border-radius: 34px;
  background: linear-gradient(180deg, #004b7c 0%, #0d5f9c 100%);
  overflow: hidden;
  color: white;
  display: grid;
  place-items: center;
}
.hero-circle {
  position: absolute;
  right: -40px;
  top: 20px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255, 143, 0, 0.18);
}
.hero-card {
  position: relative;
  z-index: 1;
  width: min(280px, 100%);
  padding: 1.5rem;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.16);
  backdrop-filter: blur(12px);
}
.hero-card span {
  display: block;
  font-weight: 800;
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
}
.hero-card p {
  margin: 0;
  line-height: 1.7;
}
.hero-card-alt {
  margin-top: 2rem;
}
.section {
  padding: 3rem 0;
}
.section-heading {
  max-width: 760px;
}
.section-heading h2 {
  margin: 0.5rem 0 1rem;
  font-size: clamp(2rem, 2.75vw, 2.75rem);
  line-height: 1.05;
}
.catalog-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2rem;
}
.catalog-grid h3 {
  margin-top: 0;
}
.catalog-grid ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.catalog-grid li {
  padding: 0.65rem 0;
}
.catalog-grid a {
  color: #004b7c;
}
.catalog-grid a:hover {
  text-decoration: underline;
}
.about-grid,
.quality-grid,
.contact-grid {
  display: grid;
  gap: 2rem;
}
.about-grid {
  grid-template-columns: 1.4fr 0.8fr;
}
.about-stats {
  display: grid;
  gap: 1rem;
}
.about-stats div,
.feature-list div,
.product-card ul li {
  background: #ffffff;
  border: 1px solid rgba(15, 76, 129, 0.08);
  border-radius: 18px;
  padding: 1rem;
}
.about-stats strong,
.feature-list strong {
  display: block;
  font-size: 1rem;
  margin-bottom: 0.5rem;
}
.about-stats span,
.feature-list span {
  color: #475569;
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}
.product-card {
  background: #ffffff;
  border-radius: 24px;
  padding: 1.75rem;
  box-shadow: 0 20px 50px rgba(15, 76, 129, 0.08);
}
.product-card h3 {
  margin-top: 0;
}
.product-card p {
  margin-bottom: 1rem;
  color: #475569;
}
.product-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.product-card ul li {
  padding-left: 0.85rem;
  position: relative;
}
.product-card ul li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0.16rem;
  color: #ff8f00;
  font-size: 0.85rem;
}
.product-actions {
  margin-top: 1.5rem;
}
.product-actions .button {
  padding: 1rem 1.8rem;
}
.detail-hero {
  background: linear-gradient(180deg, #eef4fb 0%, #ffffff 100%);
}
.detail-hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 2rem;
  align-items: center;
}
.detail-hero-img {
  width: 100%;
  max-width: 420px;
  border-radius: 28px;
  box-shadow: 0 20px 60px rgba(15, 76, 129, 0.1);
}
.product-detail {
  padding-top: 1rem;
}
.detail-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 2rem;
  align-items: start;
  margin-top: 2rem;
}
.detail-grid.reverse {
  grid-template-columns: 0.9fr 1.3fr;
}
.detail-copy {
  color: #475569;
}
.detail-card {
  background: #ffffff;
  border-radius: 28px;
  padding: 1.75rem;
  box-shadow: 0 20px 60px rgba(15, 76, 129, 0.08);
}
.detail-card img {
  display: block;
  width: 100%;
  border-radius: 20px;
  margin-bottom: 1.5rem;
}
.spec-table {
  width: 100%;
  border-collapse: collapse;
}
.spec-table th,
.spec-table td {
  text-align: left;
  padding: 0.85rem 0;
  border-bottom: 1px solid rgba(15, 76, 129, 0.08);
}
.spec-table th {
  width: 40%;
  color: #0f4c81;
  font-weight: 700;
}
.spec-table td {
  color: #475569;
}
.quality-grid {
  grid-template-columns: 1.5fr 1fr;
  align-items: start;
}
.quality-panel {
  background: #0f4c81;
  color: white;
  padding: 2rem;
  border-radius: 24px;
}
.quality-panel .eyebrow,
.quality-panel strong {
  color: #dbeefe;
}
.quality-benefits {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
}
.quality-benefits li {
  margin-bottom: 1rem;
  color: #475569;
}
.feature-list {
  display: grid;
  gap: 1rem;
}
.feature-list div {
  padding: 1rem 1rem 0.95rem;
  border-radius: 18px;
  border: 1px solid rgba(15, 76, 129, 0.12);
  background: #ffffff;
  color: #0f172a;
}
.feature-list strong {
  margin-bottom: 0.4rem;
  color: #0f4c81;
}
.feature-list span {
  color: #334155;
}
.small-note {
  margin-top: 1.5rem;
  color: #dbeefe;
}
.contact-grid {
  grid-template-columns: 1fr 1fr;
}
.contact-grid h3 {
  margin-top: 0;
}
.brochure-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.9rem;
}
.brochure-list li {
  padding: 0;
}
.brochure-list a {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.95rem 1.15rem;
  border-radius: 16px;
  background: #ffffff;
  border: 1px solid rgba(0, 75, 124, 0.14);
  color: #004b7c;
  font-weight: 700;
  box-shadow: 0 10px 24px rgba(15, 76, 129, 0.06);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}
.brochure-list a::before {
  content: "PDF";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 24px;
  border-radius: 999px;
  background: #004b7c;
  color: #ffffff;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.brochure-list a:hover,
.brochure-list a:focus {
  transform: translateY(-1px);
  background: #eef5fb;
  box-shadow: 0 14px 28px rgba(15, 76, 129, 0.10);
}
.catalog-grid ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.catalog-grid li {
  margin-bottom: 0.85rem;
}
.catalog-grid a {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  width: 100%;
  padding: 0.95rem 1.15rem;
  border-radius: 16px;
  background: #ffffff;
  border: 1px solid rgba(0, 75, 124, 0.14);
  color: #004b7c;
  font-weight: 700;
  box-shadow: 0 10px 24px rgba(15, 76, 129, 0.06);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
  text-decoration: none;
}
.catalog-grid a::before {
  content: "PDF";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 24px;
  border-radius: 999px;
  background: #004b7c;
  color: #ffffff;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.catalog-grid a:hover,
.catalog-grid a:focus {
  transform: translateY(-1px);
  background: #eef5fb;
  box-shadow: 0 14px 28px rgba(15, 76, 129, 0.10);
}
.site-footer {
  padding: 2rem 0 2.5rem;
  background: #0f4c81;
  color: #ffffff;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}
.footer-inner p {
  margin: 0;
  color: #dbeefe;
}
@media (max-width: 980px) {
  .hero-grid,
  .about-grid,
  .quality-grid,
  .contact-grid,
  .product-grid {
    grid-template-columns: 1fr;
  }
  .hero {
    padding-top: 3rem;
  }
  .hero-visual {
    min-height: 320px;
  }
}
@media (max-width: 720px) {
  .header-inner {
    flex-wrap: wrap;
  }
  .site-nav {
    width: 100%;
    display: none;
    flex-direction: column;
    margin-top: 1rem;
    gap: 0.85rem;
  }
  .site-nav.show {
    display: flex;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .hero-copy h2 {
    font-size: 2.25rem;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .quality-panel,
  .about-stats div,
  .product-card,
  .feature-list div {
    border-radius: 20px;
  }
}