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768px){.contact-grid{grid-template-columns:1fr}}.main-content{flex:1;padding-bottom:4rem}.page-hero{padding:4rem 0 3rem;text-align:center;background:linear-gradient(180deg,var(--o2-gray-50) 0%,var(--o2-white) 100%);border-bottom:1px solid var(--border)}.page-hero h1{margin-bottom:1rem}.page-hero p{max-width:640px;margin-left:auto;margin-right:auto;font-size:1.1rem}.section{padding:3rem 0}.section-title{margin-bottom:1.5rem;padding-bottom:.5rem;border-bottom:2px solid var(--o2-blue);display:inline-block}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem}.card{background:var(--o2-white);border:1px solid var(--border);border-radius:8px;padding:1.5rem;box-shadow:var(--shadow);transition:box-shadow .2s,border-color .2s}.card:hover{box-shadow:var(--shadow-lg);border-color:var(--o2-gray-300)}.card h3{margin-top:0;color:var(--o2-blue);font-size:1.1rem}.card p{margin-bottom:0;font-size:.95rem}.btn{display:inline-block;padding:.75rem 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