.detail-page { background: var(--white); }
.detail-page .site-header:not(.scrolled) { color: white; }
.detail-page .site-header:not(.scrolled) .desktop-nav a,
.detail-page .site-header:not(.scrolled) .language-switcher button { color: rgba(255,255,255,.82); }
.detail-page .site-header:not(.scrolled) .language-switcher { border-color: rgba(255,255,255,.3); background: rgba(5,23,34,.22); }
.detail-page .site-header:not(.scrolled) .language-switcher button[aria-pressed="true"] { color: var(--ink); background: white; }
.detail-page .site-header:not(.scrolled) .brand-mark::before,
.detail-page .site-header:not(.scrolled) .brand-mark::after,
.detail-page .site-header:not(.scrolled) .menu-toggle span:not(.sr-only) { background: white; }
.detail-page .site-header:not(.scrolled) .menu-toggle { border-color: rgba(255,255,255,.4); }

.detail-hero {
  position: relative; min-height: min(790px, 86dvh); display: flex; align-items: end; overflow: hidden;
  color: white; background: var(--navy); isolation: isolate;
}
.detail-hero-image { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; object-fit: cover; }
.detail-hero::after { content: ""; position: absolute; inset: 0; z-index: -1; background: rgba(4,24,35,.66); }
.detail-hero-inner { padding: 170px 0 72px; }
.detail-breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; color: rgba(255,255,255,.72); font-size: 13px; font-weight: 700; }
.detail-breadcrumb a:hover { color: white; }
.detail-hero .section-kicker { color: #78e0d6; }
.detail-hero h1 { max-width: 900px; margin: 14px 0 16px; font-size: clamp(58px, 8vw, 116px); line-height: .9; letter-spacing: 0; }
.detail-full-name { max-width: 800px; margin-bottom: 20px; color: rgba(255,255,255,.82); font-size: clamp(19px, 2.2vw, 28px); font-weight: 650; }
.detail-lead { max-width: 760px; margin-bottom: 32px; color: rgba(255,255,255,.76); font-size: 17px; line-height: 1.72; }
.detail-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.detail-hero .button-ghost { color: white; border-color: rgba(255,255,255,.35); background: rgba(255,255,255,.08); }

.detail-section-nav { position: sticky; top: 82px; z-index: 30; border-bottom: 1px solid var(--line); background: rgba(255,254,250,.95); backdrop-filter: blur(14px); }
.detail-section-nav .shell { display: flex; gap: 28px; overflow-x: auto; scrollbar-width: none; }
.detail-section-nav .shell::-webkit-scrollbar { display: none; }
.detail-section-nav a { flex: 0 0 auto; padding: 18px 0 16px; color: var(--ink-soft); border-bottom: 2px solid transparent; font-size: 12px; font-weight: 800; }
.detail-section-nav a:hover { color: var(--ink); border-color: var(--teal); }

.detail-band { padding: 100px 0; background: var(--white); }
.detail-band:nth-of-type(even) { background: var(--paper); }
.detail-band-dark { color: white; background: var(--navy) !important; }
.detail-heading { display: grid; grid-template-columns: minmax(250px,.78fr) minmax(0,1.22fr); gap: clamp(50px,8vw,120px); margin-bottom: 48px; }
.detail-heading h2 { margin-bottom: 0; font-size: clamp(38px,5vw,64px); line-height: 1.02; letter-spacing: 0; }
.detail-heading-copy { color: var(--ink-soft); font-size: 16px; line-height: 1.8; }
.detail-heading-copy p:last-child { margin-bottom: 0; }
.detail-band-dark .detail-heading-copy { color: #b1c2c9; }
.detail-band-dark .section-kicker { color: #75ded3; }

.detail-overview-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 24px; align-items: start; }
.detail-overview-copy { font-size: 18px; line-height: 1.85; }
.detail-overview-copy p:last-child { margin-bottom: 0; }
.detail-highlight { padding: 28px; border-left: 3px solid var(--teal); background: var(--mint); font-size: 15px; line-height: 1.75; }

.comparison-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; background: var(--white); }
.comparison-table { width: 100%; min-width: 850px; border-collapse: collapse; }
.comparison-table th, .comparison-table td { padding: 20px 22px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; line-height: 1.6; }
.comparison-table th { color: white; background: var(--ink); font-size: 12px; letter-spacing: .04em; }
.comparison-table td:first-child { width: 20%; color: var(--teal-dark); font-weight: 800; }
.comparison-table tr:last-child td { border-bottom: 0; }

.numbered-grid, .mechanism-grid, .benefit-list, .stability-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 16px; }
.numbered-item, .mechanism-item, .stability-item { padding: 28px; border: 1px solid var(--line); border-radius: 8px; background: rgba(255,255,255,.04); }
.numbered-item span, .mechanism-item span, .benefit-item > span { display: block; margin-bottom: 24px; color: var(--teal); font-size: 11px; font-weight: 850; }
.numbered-item h3, .mechanism-item h3, .stability-item h3, .benefit-item h3 { margin-bottom: 11px; font-size: 20px; }
.numbered-item p, .mechanism-item p, .stability-item p, .benefit-item p { margin-bottom: 0; color: inherit; opacity: .74; line-height: 1.72; }
.facility-note { margin-top: 20px; padding: 24px 28px; border-left: 3px solid var(--teal); background: rgba(255,255,255,.06); line-height: 1.7; }

.spec-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); border-top: 1px solid var(--line); }
.spec-item { display: grid; grid-template-columns: minmax(130px,.7fr) minmax(0,1.3fr); gap: 24px; padding: 23px 0; border-bottom: 1px solid var(--line); }
.spec-item:nth-child(odd) { padding-right: 35px; }
.spec-item:nth-child(even) { padding-left: 35px; border-left: 1px solid var(--line); }
.spec-item dt { color: var(--ink-soft); font-size: 12px; font-weight: 800; }
.spec-item dd { margin: 0; font-weight: 720; line-height: 1.55; }
.source-note { margin-top: 28px; padding: 20px 24px; border: 1px solid rgba(219,75,69,.28); border-radius: 8px; color: #7d3431; background: rgba(219,75,69,.07); line-height: 1.65; }

.mechanism-item { color: white; border-color: rgba(255,255,255,.13); }
.benefit-list { counter-reset: benefits; }
.benefit-item { position: relative; padding: 30px; border: 1px solid var(--line); border-radius: 8px; background: var(--white); }
.benefit-item > span { margin-bottom: 20px; }
.stability-item { background: var(--white); }
.stability-item:last-child:nth-child(odd) { grid-column: 1 / -1; }

.application-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 48px; }
.application-column h3 { margin-bottom: 20px; font-size: 25px; }
.detail-list { display: grid; gap: 12px; margin: 0; padding: 0; list-style: none; }
.detail-list li { position: relative; padding-left: 20px; color: var(--ink-soft); line-height: 1.7; }
.detail-list li::before { content: ""; position: absolute; left: 0; top: .7em; width: 7px; height: 7px; border-radius: 50%; background: var(--teal); }
.compliance-note { margin-top: 38px; padding-top: 26px; border-top: 1px solid var(--line); color: var(--ink-soft); font-size: 13px; line-height: 1.7; }

.guideline-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 1px; overflow: hidden; border: 1px solid rgba(255,255,255,.14); border-radius: 8px; background: rgba(255,255,255,.14); }
.guideline-item { padding: 28px; background: var(--navy); }
.guideline-item h3 { color: #73dbd1; font-size: 13px; letter-spacing: .04em; }
.guideline-item p { margin: 0; color: #c0cdd2; line-height: 1.72; }

.detail-cta { padding: 92px 0; overflow: hidden; background: var(--mint); }
.detail-cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 50px; min-width: 0; }
.detail-cta-inner > * { min-width: 0; }
.detail-cta h2 { max-width: 720px; margin: 8px 0 0; font-size: clamp(38px,5vw,62px); line-height: 1.04; letter-spacing: 0; }
.detail-back-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 24px; color: var(--teal-dark); font-weight: 800; }

.product-error { min-height: 70dvh; display: grid; place-items: center; padding: 130px 24px 70px; text-align: center; }
.product-error h1 { margin-bottom: 16px; font-size: clamp(42px,8vw,78px); letter-spacing: 0; }
.product-error p { max-width: 560px; margin: 0 auto 28px; color: var(--ink-soft); line-height: 1.7; }

@media (max-width: 900px) {
  .detail-heading, .detail-overview-grid { grid-template-columns: 1fr; gap: 28px; }
  .detail-heading { margin-bottom: 38px; }
  .detail-cta-inner { display: grid; }
}

@media (max-width: 760px) {
  .detail-hero { min-height: 760px; }
  .detail-hero-inner { padding: 140px 0 54px; }
  .detail-hero h1 { font-size: clamp(52px,17vw,76px); overflow-wrap: anywhere; }
  .detail-section-nav { top: 70px; }
  .detail-section-nav .shell { gap: 22px; }
  .detail-band { padding: 76px 0; }
  .numbered-grid, .mechanism-grid, .benefit-list, .stability-grid, .application-grid, .guideline-grid, .spec-grid { grid-template-columns: 1fr; }
  .spec-item { grid-template-columns: 1fr; gap: 8px; }
  .spec-item:nth-child(odd), .spec-item:nth-child(even) { padding: 20px 0; border-left: 0; }
  .detail-cta { padding: 72px 0; }
  .detail-cta .button { width: 100%; max-width: 100%; min-width: 0; }
}