:root{--brand-primary:#0F6976;--brand-primary-dark:#0A464F;--brand-primary-light:#3496A3;--brand-secondary:#F97316;--brand-accent:#A855F7;--brand-bg:#FFFFFF;--brand-bg-alt:#F2F6F8;--brand-text:#173344;--brand-text-secondary:#4F6474;--text-on-dark:#FFFFFF;--brand-border:#D7E0E6;--brand-success:#22C55E;--brand-warning:#F59E0B;--brand-danger:#EF4444;--shadow-soft:0 18px 45px rgba(15, 105, 118, 0.14);--radius:12px}body{color:#173344;color:var(--brand-text);background:#fff;background:var(--brand-bg);font-family:Arial,Helvetica,sans-serif;line-height:1.65}a{color:#0f6976;color:var(--brand-primary);-webkit-text-decoration:none;text-decoration:none}a:hover{color:#0a464f;color:var(--brand-primary-dark);-webkit-text-decoration:underline;text-decoration:underline}h1,h2,h3,h4{color:#173344;color:var(--brand-text);line-height:1.12;letter-spacing:0}h1{font-size:56px;font-weight:760}h2{font-size:38px;font-weight:720}h3{font-size:22px;font-weight:700}.section,section[class*=-section]{padding-top:80px;padding-bottom:80px}.section-alt{background:#f2f6f8;background:var(--brand-bg-alt)}.cta-section,.section-cta{padding-top:80px;padding-bottom:96px}.eyebrow,.section-heading span{display:inline-block;color:#f97316;color:var(--brand-secondary);font-size:13px;font-weight:700;letter-spacing:0;text-transform:uppercase;margin-bottom:12px}.section-heading{max-width:820px;margin-bottom:36px}.section-heading p{font-size:18px;color:#173344;color:var(--brand-text)}.btn{border-radius:12px;border-radius:var(--radius);font-weight:700}.btn-primary{background:#0f6976;background:var(--brand-primary);border-color:#0f6976;border-color:var(--brand-primary)}.btn-primary:hover{background:#0a464f;background:var(--brand-primary-dark);border-color:#0a464f;border-color:var(--brand-primary-dark)}.btn-outline-primary{color:#0f6976;color:var(--brand-primary);border-color:#0f6976;border-color:var(--brand-primary)}.btn-outline-primary:hover{background:#0f6976;background:var(--brand-primary);border-color:#0f6976;border-color:var(--brand-primary);color:#fff;color:var(--text-on-dark)}.site-header{position:sticky;top:0;z-index:1000}.chem-navbar{min-height:72px;background:#0a464f;background:var(--brand-primary-dark);box-shadow:0 10px 28px rgba(10,70,79,.22)}.chem-nav-inner{padding-left:28px;padding-right:28px}.brand-logo{width:180px;height:40px;-o-object-fit:contain;object-fit:contain;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.26);border-radius:8px}.chem-navbar .nav-link{color:#fff;color:var(--text-on-dark);font-weight:700;padding:24px 14px}.chem-navbar .nav-link:focus,.chem-navbar .nav-link:hover{color:#fff;-webkit-text-decoration:underline;text-decoration:underline}.chem-nav-search{display:flex;min-width:230px;border:1px solid rgba(255,255,255,.22);border-radius:999px;overflow:hidden;background:rgba(255,255,255,.1)}.chem-nav-search input{width:140px;border:0;color:#fff;background:0 0;padding:9px 12px}.chem-nav-search input::-moz-placeholder{color:rgba(255,255,255,.84)}.chem-nav-search input::placeholder{color:rgba(255,255,255,.84)}.chem-nav-search button{border:0;color:#fff;color:var(--text-on-dark);background:#f97316;background:var(--brand-secondary);padding:9px 14px;font-weight:700}.chem-mega-panel{width:min(860px,92vw);padding:24px;border:0;border-radius:12px;border-radius:var(--radius);box-shadow:0 18px 45px rgba(15,105,118,.14);box-shadow:var(--shadow-soft);grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:18px}.chem-newsroom-menu:hover .chem-mega-panel{display:grid}.mega-column span{display:block;color:#f97316;color:var(--brand-secondary);font-weight:800;margin-bottom:10px}.mega-column a{display:block;color:#173344;color:var(--brand-text);padding:6px 0}.subpage-hero{padding-top:150px;padding-bottom:80px;background:linear-gradient(135deg,#f8fbfc 0,#eaf3f5 100%)}.subpage-hero p{max-width:860px;font-size:19px}.dark-hero{background:linear-gradient(135deg,#0a464f,#0f6976);background:linear-gradient(135deg,var(--brand-primary-dark),var(--brand-primary))}.dark-hero h1,.dark-hero p{color:#fff;color:var(--text-on-dark)}.stats-row{display:flex;flex-wrap:nowrap;gap:24px}.stat-item{flex:1 1 0;min-width:0;padding:24px;border:1px solid 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a:not(.btn):hover{color:#fff;-webkit-text-decoration:underline;text-decoration:underline}.social-row{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin:20px 0}.social-row a{display:inline-flex;align-items:center;justify-content:center;width:50px;height:50px;border:1px solid rgba(255,255,255,.28);border-radius:50%;position:relative;font-weight:800}.social-row a span{position:absolute;bottom:-24px;opacity:0;font-size:12px;transition:opacity .2s}.social-row a:hover span{opacity:1}.heritage-anchor{font-size:28px;margin:38px 0 26px;font-weight:720}.footer-links{border-top:1px solid rgba(255,255,255,.18);padding-top:36px}.footer-links a{display:block;margin:8px 0}.footer-legal{display:flex;justify-content:space-between;gap:16px;border-top:1px solid rgba(255,255,255,.18);margin-top:36px;padding-top:20px;flex-wrap:wrap}.footer-legal nav{display:flex;gap:18px;flex-wrap:wrap}img[prompt]{background:linear-gradient(135deg,rgba(15,105,118,.16),rgba(249,115,22,.14))}@media (max-width:991px){h1{font-size:38px}h2{font-size:30px}.chem-navbar .nav-link{padding:10px 0}.chem-nav-search{margin-top:12px;margin-bottom:12px}.stats-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:575px){.section,section[class*=-section]{padding-top:52px;padding-bottom:52px}.cta-section,.section-cta{padding-top:52px;padding-bottom:72px}.stats-row{grid-template-columns:1fr}.chem-nav-inner{padding-left:16px;padding-right:16px}}.feedback-form{padding:28px;background:#fff;border:1px solid #d7e0e6;border:1px solid var(--brand-border);border-radius:12px;border-radius:var(--radius);box-shadow:0 18px 45px rgba(15,105,118,.14);box-shadow:var(--shadow-soft)}.modal-content .feedback-form{border:0;box-shadow:none}.feedback-form h3{margin-bottom:8px}.feedback-form p{color:#173344;color:var(--brand-text);margin-bottom:6px}.feedback-form .form-label{color:#173344;color:var(--brand-text);font-weight:700}.feedback-form .form-control,.feedback-form .form-select{border-radius:10px;border-color:#d7e0e6;border-color:var(--brand-border);padding:12px 14px}.feedback-form .form-consent{display:flex;gap:10px;align-items:flex-start}