:root{--brand-primary:#0F7576;--brand-primary-dark:#0A4E4F;--brand-primary-light:#34A3A3;--brand-secondary:#F97316;--brand-accent:#A855F7;--brand-bg:#FFFFFF;--brand-bg-alt:#F2F6F8;--brand-text:#173344;--brand-text-secondary:#617382;--brand-text-inverse:#FFFFFF;--brand-border:#D7E0E6;--brand-success:#22C55E;--brand-warning:#F59E0B;--brand-danger:#EF4444;--section-space:88px;--radius:12px}body{margin:0;color:#173344;color:var(--brand-text);background:#fff;background:var(--brand-bg);font-family:Arial,Helvetica,sans-serif;line-height:1.6}a{color:#0f7576;color:var(--brand-primary);-webkit-text-decoration:none;text-decoration:none}a:hover{color:#0a4e4f;color:var(--brand-primary-dark);-webkit-text-decoration:underline;text-decoration:underline}img{max-width:100%;height:auto}h1,h2,h3{color:inherit;letter-spacing:0;line-height:1.12}h1{font-size:52px;font-weight:800}h2{font-size:36px;font-weight:760}h3{font-size:22px;font-weight:720}.container{max-width:1200px}.eyebrow{display:inline-block;margin-bottom:12px;color:#f97316;color:var(--brand-secondary);font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:0}.section-head{max-width:760px;margin:0 auto 42px;text-align:center}.btn-brand,.btn.btn-brand{color:#fff;color:var(--brand-text-inverse);background:#0f7576;background:var(--brand-primary);border-color:#0f7576;border-color:var(--brand-primary);border-radius:12px;border-radius:var(--radius);font-weight:700}.btn-brand:hover,.btn.btn-brand:hover{color:#fff;color:var(--brand-text-inverse);background:#0a4e4f;background:var(--brand-primary-dark);border-color:#0a4e4f;border-color:var(--brand-primary-dark)}.chem-locale-topbar{background:#f2f6f8;background:var(--brand-bg-alt);border-bottom:1px solid #d7e0e6;border-bottom:1px solid var(--brand-border);font-size:13px;color:#617382;color:var(--brand-text-secondary)}.chem-locale-topbar .container{min-height:28px}.region-select{display:flex;align-items:center;gap:10px}.nav-search input,.region-form select,.region-select select{border:1px solid #d7e0e6;border:1px solid var(--brand-border);border-radius:8px;background:#fff;color:#173344;color:var(--brand-text)}.language-links{display:flex;align-items:center;gap:8px}.chem-navbar{min-height:80px;background:#fff;border-bottom:1px solid #d7e0e6;border-bottom:1px solid var(--brand-border);box-shadow:0 8px 26px rgba(23,51,68,.08)}.brand-logo{width:180px;height:40px;-o-object-fit:contain;object-fit:contain;background:linear-gradient(135deg,rgba(15,117,118,.12),rgba(249,115,22,.1));border-radius:8px}.chem-navbar .nav-link{color:#173344;color:var(--brand-text);font-weight:700;padding:10px 12px}.chem-navbar .nav-link:hover{color:#0f7576;color:var(--brand-primary);-webkit-text-decoration:none;text-decoration:none}.nav-search{display:flex;gap:6px;align-items:center}.nav-search input{width:170px;min-height:38px;padding:0 10px}.nav-search button,.region-form button{min-height:38px;padding:0 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