.product-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 18px clamp(18px, 5vw, 72px);
  color: var(--muted);
  background: #fff;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}

.product-breadcrumb a:hover {
  color: var(--alloy);
}

.product-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(420px, 0.95fr);
  min-height: 560px;
  background: #edf2f4;
  border-bottom: 1px solid var(--line);
}

.product-hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(54px, 7vw, 92px) clamp(18px, 6vw, 84px);
}

.product-hero h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(42px, 5.8vw, 72px);
  line-height: 1;
  letter-spacing: 0;
}

.product-hero-lead {
  max-width: 720px;
  margin: 24px 0 0;
  color: #44525e;
  font-size: clamp(18px, 1.7vw, 22px);
}

.product-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 26px;
}

.product-meta span {
  padding: 8px 11px;
  color: #fff;
  background: var(--steel);
  font-size: 13px;
  font-weight: 800;
}

.product-hero-media {
  position: relative;
  min-height: 440px;
  overflow: hidden;
}

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

.product-hero-media span {
  position: absolute;
  right: 18px;
  bottom: 18px;
  max-width: 280px;
  padding: 12px 14px;
  color: #fff;
  background: rgba(24, 32, 39, 0.86);
  font-size: 13px;
  font-weight: 700;
}

.product-shell {
  width: min(1320px, 100%);
  min-width: 0;
  margin: 0 auto;
}

.product-section {
  padding: clamp(54px, 7vw, 88px) clamp(18px, 5vw, 72px);
}

.product-section.alt {
  background: #e9edf0;
}

.product-section.white {
  background: #fff;
}

.product-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(300px, 0.28fr);
  gap: clamp(24px, 5vw, 64px);
  align-items: end;
  margin-bottom: 30px;
}

.product-heading > p {
  margin: 0;
  color: var(--muted);
}

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

.overview-grid article,
.procurement-grid article,
.application-grid article {
  padding: 22px;
  background: #fff;
  border: 1px solid var(--line);
}

.overview-grid article {
  border-top: 4px solid var(--alloy);
}

.overview-grid p,
.procurement-grid p,
.application-grid p {
  margin-bottom: 0;
  color: var(--muted);
}

.data-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
  gap: 22px;
  align-items: start;
}

.data-panel {
  min-width: 0;
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
}

.data-panel h3 {
  margin-bottom: 18px;
}

.data-table-wrap {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
}

.data-table {
  min-width: 520px;
}

.data-table th,
.data-table td {
  padding: 12px 14px;
}

.fact-list {
  display: grid;
  gap: 0;
  margin: 0;
}

.fact-list div {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.fact-list dt {
  font-weight: 800;
}

.fact-list dd {
  margin: 0;
  color: var(--muted);
}

.application-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.application-grid article {
  border-top: 5px solid var(--green);
}

.spec-note,
.reference-note {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.reference-note a {
  color: var(--alloy);
  font-weight: 800;
}

.product-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  padding: clamp(34px, 5vw, 56px) clamp(18px, 5vw, 72px);
  color: #fff;
  background: #1d252c;
}

.product-cta h2 {
  max-width: 850px;
}

.product-cta p {
  max-width: 760px;
  margin: 14px 0 0;
  color: #bac4cc;
}

.product-cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

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

.related-grid a {
  display: grid;
  align-content: center;
  min-height: 96px;
  padding: 18px;
  background: #f7f8f7;
  border: 1px solid var(--line);
  font-weight: 800;
}

.related-grid a:hover {
  color: #fff;
  background: var(--steel);
}

.product-faq details {
  max-width: none;
}

.legal-note {
  padding: 20px clamp(18px, 5vw, 72px);
  color: var(--muted);
  background: #f7f8f7;
  border-top: 1px solid var(--line);
  font-size: 12px;
}

@media (max-width: 980px) {
  .product-hero,
  .product-heading,
  .data-layout {
    grid-template-columns: 1fr;
  }

  .product-hero-media {
    min-height: 360px;
  }

  .overview-grid,
  .procurement-grid,
  .application-grid,
  .related-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-cta {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  .product-breadcrumb {
    padding: 12px 14px;
  }

  .product-hero {
    min-height: 0;
  }

  .product-hero-copy {
    padding: 44px 18px;
  }

  .product-hero h1 {
    font-size: 38px;
  }

  .product-hero-media {
    min-height: 280px;
  }

  .overview-grid,
  .procurement-grid,
  .application-grid,
  .related-grid {
    grid-template-columns: 1fr;
  }

  .fact-list div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .product-cta-actions,
  .product-cta-actions .button {
    width: 100%;
  }
}