:root {
  --ink: #172033;
  --muted: #637083;
  --line: #d7e2ee;
  --soft: #f5f7fa;
  --teal: #00afc8;
  --blue: #10245a;
  --amber: #a86b00;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #ffffff;
  color: var(--ink);
  font-family: Inter, Arial, "Microsoft YaHei", sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px clamp(18px, 4vw, 54px);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
}

.brand,
.site-header nav,
.hero-actions,
.website-product-actions,
.selected-material-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand span {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 8px;
  background: var(--teal);
  color: #ffffff;
  font-weight: 800;
}

.brand-logo img {
  display: block;
  width: auto;
  height: 40px;
  max-width: 220px;
  object-fit: contain;
}

.site-header nav {
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 14px;
}

.site-header nav a {
  padding: 8px 10px;
  border-radius: 7px;
}

.site-header nav a:hover {
  background: var(--soft);
  color: var(--ink);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #ffffff;
  color: var(--ink);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 3px auto;
  border-radius: 2px;
  background: currentColor;
}

.menu-toggle:focus-visible,
.site-header nav a:focus-visible {
  outline: 3px solid rgba(0, 175, 200, 0.24);
  outline-offset: 2px;
}

main {
  display: grid;
  gap: 38px;
  padding: 26px clamp(18px, 4vw, 54px) 54px;
}

.site-footer {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding: 26px clamp(18px, 4vw, 54px);
  border-top: 1px solid var(--line);
  background: #ffffff;
  color: var(--muted);
}

.site-footer strong {
  display: block;
  color: var(--ink);
  font-size: 15px;
}

.site-footer p {
  max-width: 360px;
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.55;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 14px;
  font-size: 13px;
}

.site-footer a {
  color: var(--muted);
}

.site-footer a:hover {
  color: var(--blue);
}

.runtime-warning[hidden] {
  display: none;
}

.runtime-warning {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid #f1d28e;
  border-radius: 8px;
  background: #fff7e2;
  color: #7a4b00;
}

.runtime-warning strong,
.runtime-warning span {
  display: block;
}

.runtime-warning span {
  font-size: 13px;
  line-height: 1.45;
}

.site-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 40px;
  min-height: 460px;
  align-items: end;
  padding: clamp(32px, 6vw, 72px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(249, 251, 253, 0.98), rgba(255, 255, 255, 0.94)),
    radial-gradient(circle at 18% 24%, rgba(0, 121, 107, 0.08), transparent 30%),
    radial-gradient(circle at 80% 10%, rgba(36, 88, 166, 0.07), transparent 32%);
}

.eyebrow,
.section-head span,
.capability-section span,
.product-card span,
.detail-hero span,
.hero-panel span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.site-hero h1 {
  max-width: 780px;
  margin: 10px 0 14px;
  font-size: clamp(34px, 5vw, 62px);
  line-height: 1.02;
  letter-spacing: 0;
}

.site-hero p,
.rfq-section p,
.capability-section p,
.detail-hero p,
.product-card p {
  color: var(--muted);
  line-height: 1.65;
}

.site-hero p {
  max-width: 700px;
}

.hero-actions a,
.site-rfq-form button,
.product-card button,
.detail-link,
.detail-actions button {
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid var(--teal);
  border-radius: 7px;
  background: var(--teal);
  color: #ffffff;
  cursor: pointer;
}

.detail-link {
  display: inline-flex;
  align-items: center;
}

.hero-actions a:last-child,
.detail-actions button:last-child,
.product-card button:last-child {
  background: #ffffff;
  color: var(--teal);
}

.hero-panel {
  display: grid;
  gap: 12px;
  padding: 14px;
  border: 1px solid #cfe4e1;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.82);
}

.hero-visual {
  display: grid;
  min-height: 148px;
  place-items: center;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(246, 251, 250, 0.9), rgba(255, 255, 255, 0.98)),
    repeating-linear-gradient(115deg, rgba(36, 88, 166, 0.045) 0 1px, transparent 1px 20px);
}

.hero-visual img {
  width: min(80%, 190px);
  max-height: 118px;
  object-fit: contain;
  opacity: 0.68;
  mix-blend-mode: multiply;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hero-tags strong {
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #ffffff;
  font-size: 12px;
  line-height: 1.35;
  font-weight: 700;
}

.product-section,
.product-detail,
.rfq-section,
.capability-section,
.category-section,
.insight-section,
.audience-section,
.why-section,
.knowledge-section,
.insight-detail {
  scroll-margin-top: 80px;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 14px;
}

.section-link {
  color: var(--blue);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.section-link:hover {
  color: var(--teal);
}

.section-head h2,
.rfq-section h2 {
  margin: 5px 0 0;
  font-size: 26px;
}

.section-head p {
  max-width: 620px;
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.section-head label {
  display: grid;
  gap: 6px;
  min-width: min(100%, 320px);
  color: var(--muted);
  font-size: 12px;
}

.section-head input,
.filter-bar select,
.site-rfq-form input,
.site-rfq-form select,
.site-rfq-form textarea {
  min-width: 0;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 10px 11px;
  background: #ffffff;
  color: var(--ink);
}

.filter-bar {
  display: grid;
  grid-template-columns: minmax(180px, 260px) auto;
  gap: 10px;
  align-items: end;
  margin-bottom: 14px;
}

.filter-bar label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
}

.filter-bar button,
.insight-card button {
  min-height: 39px;
  width: fit-content;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #ffffff;
  color: var(--ink);
  cursor: pointer;
}

.filter-bar button {
  padding: 0 14px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
}

.selected-materials {
  display: grid;
  border-top: 1px solid var(--line);
}

.selected-material {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 170px auto;
  gap: 18px;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.selected-material strong {
  display: block;
  font-size: 17px;
  line-height: 1.35;
}

.selected-material p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.selected-material > span {
  color: var(--muted);
  font-size: 13px;
}

.selected-material-actions {
  justify-content: flex-end;
}

.selected-material-actions a,
.selected-material-actions button {
  min-height: 36px;
  padding: 0 10px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--blue);
  cursor: pointer;
  white-space: nowrap;
}

.selected-material-actions button {
  border: 1px solid #cfe4e1;
  color: var(--teal);
  background: #ffffff;
}

.product-card {
  display: grid;
  gap: 10px;
  min-width: 0;
  min-height: 100%;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.product-card strong {
  display: block;
  min-width: 0;
  font-size: 17px;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.product-card p {
  margin: 0;
  font-size: 13px;
}

.product-card small {
  color: var(--muted);
  line-height: 1.45;
}

.capability-section article {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.product-card button,
.detail-actions button {
  width: fit-content;
  max-width: 100%;
  white-space: normal;
  overflow-wrap: anywhere;
}

.selected-material,
.selected-material > div,
.selected-material-actions,
.related-grid a {
  min-width: 0;
}

.selected-material strong,
.related-grid a strong,
.related-grid a small {
  overflow-wrap: anywhere;
}

.selected-material-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.detail-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfe;
}

.detail-hero h2 {
  margin: 8px 0 10px;
  font-size: 34px;
  line-height: 1.12;
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.content-block span,
.conversion-layer span {
  display: block;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

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

.supplier-product-page {
  max-width: 1180px;
  margin: 0 auto;
  width: 100%;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
}

.breadcrumb > *,
.product-page-hero > div,
.product-page-hero h1,
.product-page-hero h2 {
  min-width: 0;
  overflow-wrap: anywhere;
}

.product-page-hero,
.content-block,
.conversion-layer,
.product-quick-facts,
.related-grid,
.related-grid a,
.chemical-structure-card,
.route-article,
.knowledge-article-page,
.rfq-page-layout,
.rfq-form-panel,
.rfq-guidance-panel {
  min-width: 0;
}

.product-quick-facts dd,
.related-grid strong,
.related-grid small,
.content-block p,
.content-block li,
.category-path-trail > *,
.knowledge-article-page h1,
.knowledge-article-page h2,
.knowledge-article-page h3,
.knowledge-article-page p,
.knowledge-article-page a {
  overflow-wrap: anywhere;
}

.breadcrumb a {
  color: var(--blue);
}

.breadcrumb strong {
  color: var(--ink);
  font-weight: 600;
}

.category-path-block {
  align-items: center;
}

.category-path-trail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
}

.category-path-trail a,
.category-path-trail strong {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #f8fbfd;
  color: var(--blue);
  font-weight: 650;
  white-space: normal;
}

.category-path-trail strong {
  background: #ffffff;
  color: var(--ink);
}

.product-page-hero,
.content-block,
.conversion-layer {
  display: grid;
  grid-template-columns: minmax(220px, 0.34fr) minmax(0, 1fr);
  gap: 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.product-page-hero {
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.42fr);
  align-items: start;
  padding: 28px;
  background: #fbfcfe;
}

.product-page-hero > div > span,
.product-quick-facts > span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.product-page-hero h1,
.product-page-hero h2 {
  margin: 8px 0 8px;
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1.08;
}

.product-page-hero p {
  max-width: 720px;
  color: var(--muted);
  line-height: 1.65;
}

.product-identity {
  margin: 0 0 12px;
  color: var(--teal) !important;
  font-weight: 700;
}

.product-discovery-aliases {
  margin: -2px 0 12px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.product-quick-facts {
  display: grid;
  gap: 12px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.product-quick-facts dl {
  display: grid;
  gap: 10px;
  margin: 0;
}

.product-quick-facts div {
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.product-quick-facts div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.product-quick-facts dt {
  color: var(--muted);
  font-size: 12px;
}

.product-quick-facts dd {
  margin: 4px 0 0;
  line-height: 1.45;
}

.content-block h3,
.conversion-layer h3 {
  margin: 6px 0 0;
  font-size: 20px;
  line-height: 1.25;
}

.content-block p,
.conversion-layer p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.spec-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 18px;
  margin: 0;
}

.family-list {
  display: grid;
  gap: 12px;
  margin: 0;
}

.spec-list div,
.family-list div {
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.spec-list dt,
.family-list dt {
  color: var(--muted);
  font-size: 12px;
}

.spec-list dd,
.family-list dd {
  margin: 4px 0 0;
  color: var(--ink);
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.copy-stack {
  display: grid;
  gap: 12px;
}

.chemical-structure-card {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.chemical-structure-card img {
  display: block;
  width: min(100%, 520px);
  max-width: 100%;
  max-height: 260px;
  object-fit: contain;
  justify-self: start;
}

.chemical-structure-card figcaption {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.copy-stack ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.6;
}

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

.applications-block ul,
.quote-need-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.applications-block li,
.quote-need-grid div {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
  color: var(--ink);
  line-height: 1.45;
}

.quote-need-grid strong {
  display: block;
  margin-bottom: 5px;
  font-size: 14px;
}

.quote-need-grid p,
.technical-note {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.product-safety-note {
  border-color: #d9c9a8;
  border-left: 3px solid #9a6a22;
  background: #fffdf8;
}

.product-safety-note p {
  color: var(--ink);
}

.faq-list {
  display: grid;
  gap: 8px;
}

.faq-list details {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 700;
}

.faq-list p {
  margin-top: 8px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 10px;
}

.related-grid a {
  display: grid;
  gap: 7px;
  min-height: 120px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.related-grid strong {
  font-size: 14px;
  line-height: 1.35;
}

.related-grid small {
  color: var(--muted);
  line-height: 1.4;
}

.family-links {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 10px;
}

.family-links a {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #ffffff;
  color: var(--blue);
  font-size: 12px;
  line-height: 1.35;
}

.family-links a:hover {
  border-color: #b8d6df;
  color: var(--teal);
}

.conversion-layer {
  align-items: center;
  border-color: #cfe4e1;
  background: #f4fbf9;
}

.product-final-cta {
  grid-template-columns: minmax(0, 1fr) auto;
}

.conversion-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.conversion-actions button {
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid var(--teal);
  border-radius: 7px;
  background: var(--teal);
  color: #ffffff;
  cursor: pointer;
}

.conversion-actions button:not(:first-child) {
  background: #ffffff;
  color: var(--teal);
}

.capability-section {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.category-grid,
.insight-grid,
.audience-grid,
.why-grid,
.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  grid-auto-rows: 174px;
  gap: 12px;
}

.category-card,
.insight-card,
.audience-grid article,
.why-grid article,
.knowledge-grid article {
  display: grid;
  gap: 8px;
  min-height: 138px;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.category-card span,
.category-card small,
.insight-card span,
.knowledge-grid span {
  color: var(--muted);
  font-size: 12px;
}

.category-card strong,
.insight-card strong,
.audience-grid strong,
.why-grid strong,
.knowledge-grid strong {
  font-size: 17px;
  line-height: 1.35;
}

.category-card p,
.insight-card p,
.audience-grid p,
.why-grid p,
.knowledge-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.application-visual {
  min-height: 176px;
  margin: 0 0 12px;
  padding: 22px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(23, 32, 51, 0.62), rgba(23, 32, 51, 0.12)),
    repeating-linear-gradient(100deg, rgba(255, 255, 255, 0.16) 0 1px, transparent 1px 24px),
    linear-gradient(135deg, #dcefed, #f1f6fa 48%, #ffffff);
}

.application-visual div {
  max-width: 620px;
  color: #ffffff;
}

.application-visual span {
  display: block;
  margin-bottom: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.application-visual strong {
  font-size: 22px;
  line-height: 1.25;
}

.why-grid article {
  background: var(--soft);
}

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

.service-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.service-strip article {
  padding: 18px;
  border-right: 1px solid var(--line);
}

.service-strip article:last-child {
  border-right: 0;
}

.service-strip span {
  display: block;
  color: var(--ink);
  font-weight: 700;
}

.service-strip p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.knowledge-grid a {
  width: fit-content;
  margin-top: auto;
  color: var(--blue);
  font-weight: 700;
}

.knowledge-grid article {
  height: 174px;
  min-height: 0;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
}

.text-link {
  display: inline-flex;
  min-height: 39px;
  align-items: center;
  color: var(--blue);
  font-weight: 700;
}

.insight-card div {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.insight-card button {
  padding: 0 12px;
}

.insight-article {
  display: grid;
  gap: 16px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfe;
}

.route-landing[hidden] {
  display: none;
}

.route-article {
  display: grid;
  gap: 16px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfe;
}

.route-article > span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.route-article h2 {
  max-width: 880px;
  margin: 0;
  font-size: 34px;
  line-height: 1.16;
}

.route-article > p,
.route-article li {
  color: var(--muted);
  line-height: 1.65;
}

.insight-article span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.insight-article h2 {
  max-width: 860px;
  margin: 8px 0 10px;
  font-size: 32px;
  line-height: 1.18;
}

.insight-article p,
.insight-article li {
  color: var(--muted);
  line-height: 1.65;
}

.article-body {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.article-body section {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.article-body h3 {
  margin: 0 0 8px;
  font-size: 16px;
}

.article-body ul {
  margin: 0;
  padding-left: 18px;
}

.article-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.article-actions button {
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid var(--teal);
  border-radius: 7px;
  background: var(--teal);
  color: #ffffff;
  cursor: pointer;
}

.article-actions button:last-child {
  background: #ffffff;
  color: var(--teal);
}

.rm-category-page {
  gap: 26px;
  padding: 0;
  border: 0;
  background: transparent;
}

.rm-category-page > .breadcrumb {
  padding: 0;
}

.rm-category-page section {
  border-radius: 8px;
}

.rm-category-hero {
  min-height: 360px;
  display: grid;
  align-items: end;
  padding: clamp(30px, 6vw, 66px);
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(251, 253, 255, 0.96), rgba(255, 255, 255, 0.9)),
    radial-gradient(circle at 20% 18%, rgba(0, 121, 107, 0.1), transparent 28%),
    linear-gradient(120deg, rgba(36, 88, 166, 0.08), transparent 45%);
}

.chiral-category-hero {
  background:
    linear-gradient(135deg, rgba(252, 253, 255, 0.97), rgba(255, 255, 255, 0.9)),
    radial-gradient(circle at 22% 18%, rgba(168, 107, 0, 0.1), transparent 28%),
    linear-gradient(120deg, rgba(0, 121, 107, 0.08), transparent 46%);
}

.non-reactive-category-hero {
  background:
    linear-gradient(135deg, rgba(252, 253, 255, 0.98), rgba(255, 255, 255, 0.9)),
    radial-gradient(circle at 22% 18%, rgba(16, 36, 90, 0.09), transparent 28%),
    linear-gradient(120deg, rgba(14, 143, 163, 0.08), transparent 46%);
}

.lc-overview-hero {
  background:
    linear-gradient(135deg, rgba(249, 252, 255, 0.98), rgba(255, 255, 255, 0.92)),
    radial-gradient(circle at 20% 18%, rgba(16, 36, 90, 0.1), transparent 28%),
    linear-gradient(120deg, rgba(14, 143, 163, 0.08), transparent 46%);
}

.materials-category-map {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.materials-map-card {
  display: grid;
  gap: 10px;
  align-content: start;
  min-height: 180px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
}

.materials-map-card span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.materials-map-card strong {
  color: var(--blue);
  font-size: 18px;
  line-height: 1.2;
}

.materials-map-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.app-hero {
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.36fr);
  gap: clamp(22px, 4vw, 48px);
  align-items: end;
  background:
    linear-gradient(135deg, rgba(249, 252, 255, 0.97), rgba(255, 255, 255, 0.9)),
    radial-gradient(circle at 20% 18%, rgba(36, 88, 166, 0.1), transparent 28%),
    linear-gradient(120deg, rgba(0, 121, 107, 0.06), transparent 46%);
}

.optical-film-visual {
  display: grid;
  gap: 16px;
  min-height: 240px;
  padding: 18px;
  border: 1px solid rgba(207, 223, 242, 0.9);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(247, 250, 255, 0.78)),
    linear-gradient(120deg, rgba(36, 88, 166, 0.08), transparent 48%);
}

.optical-film-visual span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.optical-film-visual p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.film-layer-stack {
  display: grid;
  gap: 9px;
  align-content: center;
  min-height: 138px;
  padding: 18px 10px;
}

.film-layer-stack i {
  display: block;
  height: 18px;
  border: 1px solid rgba(36, 88, 166, 0.16);
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(0, 121, 107, 0.08), rgba(36, 88, 166, 0.16), rgba(255, 255, 255, 0.75));
}

.film-layer-stack i:nth-child(2) {
  width: 88%;
  margin-left: 8%;
  background: linear-gradient(90deg, rgba(36, 88, 166, 0.1), rgba(255, 255, 255, 0.82), rgba(0, 121, 107, 0.1));
}

.film-layer-stack i:nth-child(3) {
  width: 76%;
  margin-left: 4%;
}

.film-layer-stack i:nth-child(4) {
  width: 92%;
  margin-left: 3%;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.86), rgba(36, 88, 166, 0.13), rgba(0, 121, 107, 0.08));
}

.knowledge-hero {
  background:
    linear-gradient(135deg, rgba(252, 253, 255, 0.98), rgba(255, 255, 255, 0.92)),
    radial-gradient(circle at 18% 18%, rgba(99, 112, 131, 0.1), transparent 28%),
    linear-gradient(120deg, rgba(0, 121, 107, 0.06), transparent 46%);
}

.inline-pill {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  margin: 6px 8px 0 0;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #ffffff;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
}

.rm-category-hero div {
  max-width: 820px;
}

.rm-category-hero span,
.section-kicker span,
.rm-importance-section span,
.rm-guidance-section span,
.final-cta span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.rm-category-hero h1,
.rm-category-hero h2 {
  margin: 8px 0 12px;
  font-size: clamp(42px, 5vw, 68px);
  line-height: 1.04;
}

.rm-category-hero p {
  max-width: 720px;
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.65;
}

.rm-category-hero a,
.rm-guidance-section a {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  margin-top: 12px;
  padding: 0 16px;
  border: 1px solid var(--teal);
  border-radius: 7px;
  background: var(--teal);
  color: #ffffff;
  font-weight: 700;
}

.rm-importance-section,
.rm-education-section,
.rm-family-section,
.rm-applications-section,
.rm-selected-section,
.rm-kindchem-section,
.rm-guidance-section,
.rm-knowledge-section,
.rm-faq-section {
  padding: clamp(20px, 4vw, 34px);
  border: 1px solid var(--line);
  background: #ffffff;
}

.rm-importance-section {
  max-width: 920px;
  border-color: #cfe4e1;
  background: #f7fbfa;
}

.rm-importance-section h3,
.rm-education-section h3,
.section-kicker h3 {
  margin: 7px 0 10px;
  font-size: 25px;
  line-height: 1.24;
}

.rm-importance-section p,
.rm-education-section p,
.section-kicker p,
.rm-guidance-section p {
  max-width: 820px;
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.rm-education-section {
  display: grid;
  grid-template-columns: minmax(220px, 0.34fr) minmax(0, 1fr);
  gap: 24px;
}

.rm-family-grid,
.rm-support-grid,
.rm-knowledge-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.rm-family-grid article,
.rm-support-grid article,
.rm-knowledge-grid a,
.category-product-card,
.category-building-block-card,
.category-inquiry-card {
  min-width: 0;
  display: grid;
  gap: 8px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.rm-family-grid article {
  min-height: 180px;
  background: #fbfcfe;
}

.rm-family-grid strong,
.rm-support-grid strong,
.rm-knowledge-grid strong,
.category-product-card strong,
.category-building-block-card strong,
.category-inquiry-card strong,
.rm-application-grid strong {
  min-width: 0;
  font-size: 17px;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.rm-family-grid p,
.rm-support-grid p,
.rm-knowledge-grid p,
.category-product-card p,
.category-building-block-card p,
.category-inquiry-card p,
.rm-application-grid p {
  min-width: 0;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.58;
}

.rm-family-grid small,
.category-product-card span,
.category-building-block-card span,
.category-inquiry-card span {
  overflow-wrap: anywhere;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.rfq-structure-upload {
  display: grid;
  gap: 8px;
  min-width: 0;
  padding: 14px;
  border: 1px solid #cfe4e1;
  border-radius: 7px;
  background: #f7fbfa;
}

.rfq-structure-upload p,
.rfq-structure-upload small {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.rfq-structure-upload input[type="file"] {
  display: block;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  margin-top: 6px;
}

.rm-applications-section {
  border-color: #d2e3f7;
  background: #f7faff;
}

.chiral-category-page .rm-applications-section {
  border-color: #e8dac2;
  background: #fffaf2;
}

.app-page .rm-applications-section,
.app-page .app-category-link-section {
  border-color: #d2e3f7;
  background: #f7faff;
}

.optical-films-page {
  gap: 34px;
}

.optical-films-page .rm-importance-section {
  max-width: none;
  padding: clamp(24px, 4vw, 40px);
}

.optical-films-page .rm-family-section,
.optical-films-page .rm-selected-section,
.optical-films-page .rm-knowledge-section,
.optical-films-page .rm-faq-section {
  padding: clamp(22px, 4vw, 38px);
}

.optical-films-page .app-category-link-section {
  padding: clamp(28px, 5vw, 48px);
}

.knowledge-article-page .rm-applications-section {
  border-color: #d9e8e5;
  background: #f7fbfa;
}

.knowledge-article-page {
  max-width: 1080px;
  margin: 0 auto;
  gap: 30px;
}

.knowledge-article-page .knowledge-hero {
  min-height: 310px;
  padding: clamp(28px, 5vw, 54px);
}

.knowledge-article-page .knowledge-hero div {
  max-width: 880px;
}

.knowledge-article-page .knowledge-hero h1,
.knowledge-article-page .knowledge-hero h2 {
  max-width: 760px;
  font-size: clamp(38px, 4.4vw, 58px);
}

.knowledge-article-page .knowledge-hero p {
  max-width: 800px;
}

.knowledge-article-page .rm-importance-section {
  max-width: 860px;
  padding: clamp(24px, 4vw, 42px);
  border-color: #d9e8e5;
  background: #f7fbfa;
}

.knowledge-article-page .rm-importance-section h3 {
  max-width: 760px;
  font-size: 28px;
}

.knowledge-article-page .rm-importance-section p,
.knowledge-article-page .rm-family-section > .section-kicker p {
  max-width: 760px;
  font-size: 16px;
}

.knowledge-article-page .rm-family-section,
.knowledge-article-page .rm-applications-section,
.knowledge-article-page .rm-selected-section,
.knowledge-article-page .rm-guidance-section,
.knowledge-article-page .rm-knowledge-section,
.knowledge-article-page .rm-faq-section {
  padding: clamp(22px, 4vw, 38px);
}

.knowledge-article-page .rm-support-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.knowledge-article-page .rm-support-grid article,
.knowledge-article-page .rm-family-grid article {
  min-height: 128px;
  background: #ffffff;
}

.knowledge-article-page .rm-family-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.knowledge-article-page .rm-application-grid a {
  min-height: 150px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(247, 251, 250, 0.9)),
    linear-gradient(120deg, rgba(0, 121, 107, 0.06), transparent 48%);
}

.knowledge-article-page .category-product-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.knowledge-article-page .category-product-card {
  min-height: 138px;
  padding: 14px;
}

.knowledge-article-page .category-product-card strong,
.knowledge-article-page .rm-knowledge-grid strong {
  font-size: 15px;
}

.knowledge-article-page .category-product-card a {
  min-height: 32px;
  padding: 0;
  border: 0;
  background: transparent;
}

.knowledge-article-page .category-product-card a:last-child {
  border: 0;
}

.knowledge-article-page .rm-knowledge-grid a {
  min-height: 110px;
  padding: 14px;
  background: #ffffff;
}

.knowledge-article-page .rm-guidance-section {
  align-items: flex-start;
  background: #fbfcfe;
}

.chiral-category-page .rm-application-grid a {
  border-color: #eadcc4;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(255, 250, 242, 0.9)),
    linear-gradient(120deg, rgba(168, 107, 0, 0.08), transparent 48%);
}

.app-page .rm-application-grid a {
  min-height: 196px;
  padding: 24px;
}

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

.optical-films-page .app-requirement-grid article {
  min-height: 154px;
  background: #fbfcfe;
}

.optical-films-page .category-product-grid {
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
}

.optical-films-page .category-product-card {
  min-height: 150px;
  padding: 14px;
  background: #ffffff;
}

.optical-films-page .category-product-card strong {
  font-size: 15px;
}

.optical-films-page .category-product-card a {
  min-height: 32px;
  padding: 0;
  border: 0;
  background: transparent;
}

.optical-films-page .category-product-card a:last-child {
  border: 0;
}

.optical-films-page .rm-knowledge-grid a {
  min-height: 112px;
  padding: 14px;
  background: #ffffff;
}

.optical-films-page .rm-knowledge-grid strong {
  font-size: 15px;
}

.rm-application-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.rm-application-grid a {
  display: grid;
  gap: 10px;
  min-height: 170px;
  padding: 20px;
  border: 1px solid #cfdff2;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(247, 250, 255, 0.9)),
    linear-gradient(120deg, rgba(36, 88, 166, 0.08), transparent 48%);
}

.rm-selected-section {
  background: #fbfcfe;
}

.category-product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.category-product-card {
  min-width: 0;
  min-height: 180px;
}

.category-product-card div {
  min-width: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.category-product-card a {
  display: inline-flex;
  max-width: 100%;
  min-width: 0;
  min-height: 36px;
  align-items: center;
  padding: 0 11px;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
  white-space: normal;
  overflow-wrap: anywhere;
}

.category-product-card a:last-child {
  border-color: var(--teal);
  color: var(--teal);
}

.chiral-representative-groups {
  display: grid;
  gap: 24px;
  margin-top: 22px;
}

.chiral-representative-group {
  display: grid;
  gap: 14px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.chiral-representative-group:first-child {
  padding-top: 0;
  border-top: 0;
}

.chiral-group-heading {
  display: grid;
  gap: 5px;
  max-width: 760px;
}

.chiral-group-heading span,
.category-inquiry-card > span {
  color: var(--teal);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.chiral-group-heading h4 {
  margin: 0;
  color: var(--blue);
  font-size: 19px;
  line-height: 1.35;
}

.chiral-group-heading p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.58;
}

.chiral-representative-grid,
.chiral-building-block-grid,
.chiral-inquiry-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
}

.category-building-block-card,
.category-inquiry-card {
  min-height: 158px;
}

.category-building-block-card {
  max-width: 620px;
  border-color: #d7e7ec;
  background: #f8fbfc;
}

.category-building-block-card div,
.category-inquiry-card div {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.category-building-block-card a,
.category-inquiry-card a {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  padding: 0 11px;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
}

.category-building-block-card a:last-child,
.category-inquiry-card a {
  border-color: var(--teal);
  color: var(--teal);
}

.category-inquiry-card {
  border-color: #cfe4e8;
  background: #f5fafb;
}

.optical-display-category-page .rm-selected-section {
  background: #ffffff;
}

.optical-display-category-page .category-product-card {
  min-height: 154px;
  padding: 14px;
  background: #fbfcfe;
}

.optical-display-category-page .category-product-card strong {
  font-size: 15px;
}

.optical-display-category-page .category-product-card a {
  min-height: auto;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--blue);
  font-size: 12px;
}

.optical-display-category-page .category-product-card a:last-child {
  border: 0;
  color: var(--teal);
}

.lc-intermediates-category-page .rm-family-grid,
.lc-intermediates-category-page .rm-support-grid {
  gap: 10px;
}

.lc-intermediates-category-page .rm-family-grid article,
.lc-intermediates-category-page .rm-support-grid article {
  min-height: 132px;
  padding: 14px;
  background: #ffffff;
}

.lc-intermediates-category-page .structure-inquiry-section {
  align-items: center;
  padding: clamp(26px, 5vw, 46px);
  border-color: #c9ded9;
  background:
    linear-gradient(135deg, rgba(247, 251, 250, 0.98), rgba(255, 255, 255, 0.94)),
    linear-gradient(120deg, rgba(0, 121, 107, 0.08), transparent 48%);
}

.lc-intermediates-category-page .structure-inquiry-section h3 {
  margin: 6px 0 8px;
  font-size: clamp(25px, 3vw, 34px);
  line-height: 1.18;
}

.lc-intermediates-category-page .structure-inquiry-section p {
  max-width: 760px;
  font-size: 16px;
}

.lc-intermediates-category-page .structure-inquiry-section a {
  min-height: 44px;
  padding: 0 18px;
  background: #103f3a;
  border-color: #103f3a;
}

.lc-intermediates-category-page .rm-selected-section {
  background: #ffffff;
}

.lc-intermediates-category-page .category-product-card {
  min-height: 146px;
  padding: 14px;
  background: #fbfcfe;
}

.lc-intermediates-category-page .category-product-card a {
  min-height: auto;
  padding: 0;
  border: 0;
  background: transparent;
}

.non-reactive-lc-category-page .rm-family-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.non-reactive-lc-category-page .rm-family-grid article {
  min-height: 168px;
}

.non-reactive-lc-category-page .rm-applications-section {
  border-color: #d7e7ec;
  background: #f5f9fb;
}

.non-reactive-lc-category-page .rm-application-grid a {
  min-height: 172px;
}

.non-reactive-lc-category-page .rm-selected-section {
  background: #ffffff;
}

.non-reactive-lc-category-page .category-product-card {
  min-height: 154px;
  padding: 14px;
  background: #fbfcfe;
}

.non-reactive-lc-category-page .category-product-card strong {
  font-size: 15px;
}

.non-reactive-lc-category-page .category-product-card a {
  min-height: auto;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--teal);
}

.non-reactive-comparison-section .comparison-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 16px 0 0;
}

.non-reactive-comparison-section .comparison-links a {
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
}

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

.rm-guidance-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  background: #f7fbfa;
}

.rm-guidance-section a {
  flex: 0 0 auto;
  margin-top: 0;
}

.rm-guidance-section a.guidance-text-link {
  min-height: auto;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--blue);
}

.rm-knowledge-grid a {
  min-height: 132px;
  background: #fbfcfe;
}

.rm-final-cta {
  margin-top: 4px;
}

.capability-section strong {
  display: block;
  margin: 6px 0;
  font-size: 32px;
}

.rfq-section {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 24px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfe;
}

.final-cta {
  display: grid;
  justify-items: center;
  gap: 18px;
  padding: 34px 24px;
  border: 1px solid #cfe4e1;
  border-radius: 8px;
  background: #f4fbf9;
  text-align: center;
}

.final-cta h2 {
  margin: 6px 0 8px;
  font-size: 30px;
}

.final-cta p {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.final-cta > a {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  padding: 0 16px;
  border: 1px solid var(--teal);
  border-radius: 7px;
  background: var(--teal);
  color: #ffffff;
  font-weight: 700;
}

.site-rfq-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.route-rfq-form {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.site-rfq-form label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
}

.site-rfq-form .wide,
.site-rfq-form button,
.form-status {
  grid-column: 1 / -1;
}

.rfq-privacy-note {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.form-status {
  min-height: 20px;
  margin: 0;
  color: var(--teal);
  font-size: 13px;
}

.empty {
  padding: 18px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
}

body.route-page .site-hero,
body.route-page #categories,
body.route-page #products,
body.route-page #applications,
body.route-page #why-kindchem,
body.route-page #custom-synthesis,
body.route-page #knowledge,
body.route-page #rfq {
  display: none;
}

body.product-route .site-hero,
body.product-route #categories,
body.product-route #products,
body.product-route #applications,
body.product-route #why-kindchem,
body.product-route #custom-synthesis,
body.product-route #knowledge,
body.product-route #rfq {
  display: none;
}

body.route-page #route-landing {
  display: grid;
}

body.product-route #route-landing {
  display: none;
}

.rfq-page {
  display: grid;
  gap: 20px;
}

.rfq-page-header {
  display: grid;
  gap: 8px;
  max-width: 760px;
  padding: 18px 0 4px;
}

.rfq-page-header span,
.rfq-guidance-panel span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.rfq-page-header h1,
.rfq-page-header h2 {
  margin: 0;
  line-height: 1.12;
}

.rfq-page-header h1 {
  font-size: 36px;
}

.rfq-page-header h2 {
  font-size: 36px;
}

.about-page .rfq-page-header h2 {
  max-width: 860px;
  color: var(--ink);
  font-size: 24px;
  font-weight: 650;
}

.about-page {
  gap: 22px;
  padding: 28px clamp(20px, 4vw, 48px);
}

.about-entity-hero {
  max-width: 940px;
  padding-bottom: 14px;
}

.about-entity-hero .about-positioning {
  max-width: 900px;
  color: var(--ink);
  font-size: 24px;
  font-weight: 650;
  line-height: 1.35;
}

.about-entity-hero > p:last-child {
  max-width: 820px;
}

.about-entity-body {
  display: grid;
}

.about-section {
  min-width: 0;
  padding: 34px 0;
  border-top: 1px solid var(--line);
}

.about-section > h2,
.about-rfq-section h2 {
  margin: 0 0 14px;
  color: var(--ink);
  font-size: 27px;
  line-height: 1.25;
}

.about-section p,
.about-section li,
.about-section small {
  overflow-wrap: anywhere;
}

.about-section p {
  color: var(--muted);
  line-height: 1.7;
}

.about-section-intro,
.about-copy-narrow {
  max-width: 850px;
}

.about-copy-narrow {
  display: grid;
  gap: 12px;
}

.about-copy-narrow p,
.about-section-intro,
.about-supporting-note {
  margin: 0;
}

.about-facts-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.about-facts-grid article {
  min-width: 0;
  padding: 20px;
  border-right: 1px solid var(--line);
}

.about-facts-grid article:last-child {
  border-right: 0;
}

.about-facts-grid h3,
.about-domain-card h3,
.about-process-grid h3,
.about-related-section .related-grid h3 {
  margin: 0;
  color: var(--ink);
  font-size: 16px;
  line-height: 1.4;
}

.about-facts-grid p {
  margin: 8px 0 0;
  color: var(--ink);
  font-size: 15px;
  line-height: 1.55;
}

.about-group-label {
  margin: 24px 0 10px;
  color: var(--secondary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.about-domain-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.about-domain-card {
  display: grid;
  min-width: 0;
  gap: 10px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

a.about-domain-card:hover,
a.about-domain-card:focus-visible {
  border-color: #aac7d4;
  background: #fafdfe;
}

.about-domain-card p {
  margin: 0;
}

.about-domain-card > span {
  align-self: end;
  color: var(--secondary);
  font-size: 13px;
  font-weight: 700;
}

.about-domain-emerging {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  background: var(--soft);
}

.about-discovery-grid,
.about-audience-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0 20px;
  margin: 20px 0 18px;
  padding: 0;
  list-style: none;
}

.about-discovery-grid li,
.about-audience-list li {
  min-width: 0;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.about-discovery-grid strong,
.about-discovery-grid span {
  display: block;
}

.about-discovery-grid strong {
  color: var(--ink);
  font-size: 15px;
}

.about-discovery-grid span {
  margin-top: 5px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.about-process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 20px 0 18px;
  padding: 0;
  list-style: none;
}

.about-process-grid li {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.about-process-grid li > span {
  display: block;
  margin-bottom: 20px;
  color: var(--secondary);
  font-size: 12px;
  font-weight: 700;
}

.about-process-grid p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.6;
}

.about-policy-section {
  margin: 10px 0;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.about-audience-list li {
  color: var(--ink);
  font-weight: 650;
  line-height: 1.5;
}

.about-rfq-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  margin-top: 10px;
  padding: 28px;
  border: 1px solid #cfe4e1;
  border-radius: 8px;
  background: #f4fbf9;
}

.about-rfq-section .about-group-label {
  display: block;
  margin: 0 0 8px;
}

.about-rfq-section p {
  margin: 0 0 10px;
}

.about-rfq-section ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px 28px;
  margin: 0;
  padding-left: 18px;
  color: var(--ink);
}

.about-rfq-actions {
  align-items: stretch;
  flex-direction: column;
  min-width: 224px;
}

.about-rfq-actions a {
  justify-content: center;
  text-align: center;
}

.about-related-section .related-grid {
  margin-top: 18px;
}

.about-related-section .related-grid a {
  min-height: 108px;
}

.about-related-section .related-grid small {
  font-size: 13px;
}

.rfq-page-header p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.rfq-page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 18px;
  align-items: start;
}

.rfq-form-panel,
.rfq-guidance-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.rfq-form-panel .route-rfq-form {
  border: 0;
}

.rfq-guidance-panel {
  display: grid;
  gap: 14px;
  padding: 22px;
  background: #fbfcfe;
}

.rfq-guidance-panel h3 {
  margin: 0;
  font-size: 20px;
  line-height: 1.3;
}

.rfq-guidance-panel ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 18px;
  color: var(--ink);
  line-height: 1.55;
}

.rfq-guidance-panel p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

@media (max-width: 980px) {
  .site-header,
  .section-head,
  .site-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .site-footer nav {
    justify-content: flex-start;
  }

  .site-hero,
  .product-page-hero,
  .detail-hero,
  .app-hero,
  .rfq-section,
  .final-cta,
  .capability-section,
  .service-strip,
  .why-grid-short,
  .selected-material,
  .filter-bar,
  .article-body,
  .rfq-page-layout,
  .content-block,
  .conversion-layer,
  .product-final-cta,
  .rm-education-section,
  .rm-family-grid,
  .rm-application-grid,
  .rm-support-grid,
  .materials-category-map,
  .knowledge-article-page .rm-family-grid,
  .knowledge-article-page .category-product-grid,
  .app-requirement-grid,
  .rm-knowledge-grid,
  .chiral-representative-grid,
  .chiral-building-block-grid,
  .chiral-inquiry-grid {
    grid-template-columns: 1fr;
  }

  .conversion-actions {
    justify-content: flex-start;
  }

  .about-facts-grid,
  .about-domain-grid,
  .about-discovery-grid,
  .about-audience-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .about-facts-grid article:nth-child(2) {
    border-right: 0;
  }

  .about-facts-grid article:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .about-process-grid,
  .about-rfq-section {
    grid-template-columns: 1fr;
  }

  .about-rfq-actions {
    align-items: flex-start;
    flex-direction: row;
    min-width: 0;
  }

  .rm-guidance-section {
    display: grid;
  }

  .service-strip article {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .service-strip article:last-child {
    border-bottom: 0;
  }

  .selected-material-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .brand-logo img {
    height: 34px;
    max-width: 180px;
  }

  main {
    padding: 18px;
  }

  .site-hero,
  .app-hero,
  .rfq-section {
    padding: 18px;
  }

  .site-rfq-form {
    grid-template-columns: 1fr;
  }

  .product-page-hero,
  .content-block,
  .conversion-layer,
  .route-rfq-form,
  .rfq-guidance-panel {
    padding: 15px;
  }

  .product-page-hero h1,
  .product-page-hero h2 {
    font-size: 30px;
  }

  .about-page {
    gap: 16px;
    padding: 18px;
  }

  .about-entity-hero .about-positioning {
    font-size: 21px;
  }

  .about-section {
    padding: 26px 0;
  }

  .about-section > h2,
  .about-rfq-section h2 {
    font-size: 24px;
  }

  .about-facts-grid,
  .about-domain-grid,
  .about-discovery-grid,
  .about-audience-list,
  .about-rfq-section ul {
    grid-template-columns: 1fr;
  }

  .about-facts-grid article,
  .about-facts-grid article:nth-child(2) {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .about-facts-grid article:last-child {
    border-bottom: 0;
  }

  .about-domain-emerging {
    grid-template-columns: 1fr;
  }

  .about-process-grid {
    grid-template-columns: 1fr;
  }

  .about-policy-section,
  .about-rfq-section {
    padding: 20px;
  }

  .about-rfq-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .about-rfq-actions a {
    width: 100%;
  }

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

  .knowledge-article-page .rm-support-grid,
  .knowledge-article-page .rm-application-grid {
    grid-template-columns: 1fr;
  }

  .site-rfq-form button,
  .detail-actions button,
  .conversion-actions button {
    max-width: 100%;
    white-space: normal;
  }

  .site-footer nav a {
    min-height: 32px;
    display: inline-flex;
    align-items: center;
  }
}

@media (max-width: 760px) {
  .site-header {
    align-items: center;
    flex-direction: row;
    min-height: 64px;
    padding: 10px 18px;
  }

  .brand-logo {
    min-width: 0;
  }

  .brand-logo img {
    max-width: min(180px, calc(100vw - 98px));
  }

  .knowledge-grid {
    grid-auto-rows: 196px;
  }

  .knowledge-grid article {
    height: 196px;
  }

  .menu-toggle {
    display: block;
    flex: 0 0 44px;
    margin-left: auto;
  }

  .site-header #sitePrimaryNav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    display: none;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    padding: 8px 18px 14px;
    border-bottom: 1px solid var(--line);
    background: #ffffff;
    box-shadow: 0 10px 20px rgba(16, 36, 90, 0.08);
  }

  .site-header #sitePrimaryNav[data-open="true"] {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .site-header #sitePrimaryNav a {
    display: flex;
    min-height: 44px;
    align-items: center;
    padding: 8px 10px;
  }
}