:root{--primary-color: #1e3a8a;--primary-dark: #1e40af;--secondary-color: #3b82f6;--text-color: #1f2937;--text-light: #6b7280;--bg-color: #ffffff;--border-color: #e5e7eb;--shadow: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.6;color:var(--text-color);background-color:var(--bg-color)}.app{min-height:100vh;display:flex;flex-direction:column}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}.header{background-color:var(--bg-color);box-shadow:var(--shadow);position:sticky;top:0;z-index:100}.header .container{display:flex;justify-content:space-between;align-items:center;padding:16px 20px}.logo{font-size:1.5rem;font-weight:700;color:var(--primary-color);text-decoration:none}.nav{display:flex;gap:24px}.nav-link{background:none;border:none;padding:8px 12px;font-size:1rem;font-weight:500;color:var(--text-color);cursor:pointer;border-radius:4px;transition:all .2s ease}.nav-link:hover{color:var(--primary-color);background-color:#1e3a8a0d}.nav-link.active{color:var(--primary-color);background-color:#1e3a8a1a}.main{flex:1;padding-top:20px;padding-bottom:60px}.section{padding:60px 0}.section-title{font-size:2.25rem;font-weight:700;margin-bottom:40px;text-align:center;color:var(--primary-color)}.hero-content{text-align:center;max-width:800px;margin:0 auto}.hero-content h1{font-size:3rem;font-weight:800;margin-bottom:24px;color:var(--primary-color);line-height:1.2}.subtitle{font-size:1.25rem;color:var(--text-light);margin-bottom:32px;line-height:1.6}.cta-buttons{display:flex;gap:16px;justify-content:center}.product-categories{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:32px;margin-top:24px}.category-card{background-color:var(--bg-color);border:1px solid var(--border-color);border-radius:8px;padding:32px;text-align:center;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease}.category-card:hover{transform:translateY(-4px);box-shadow:0 10px 15px -3px #0000001a,0 4px 6px -2px #0000000d}.category-card h3{font-size:1.5rem;font-weight:700;margin-bottom:20px;color:var(--primary-color)}.category-card ul{list-style:none}.category-card li{padding:8px 0;font-size:1.125rem;color:var(--text-light)}.applications-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:24px;margin-top:24px}.application-item{background-color:var(--bg-color);border:1px solid var(--border-color);border-radius:8px;padding:32px;text-align:center;box-shadow:var(--shadow)}.application-item h3{font-size:1.25rem;font-weight:600;color:var(--primary-color)}.solutions-content{max-width:800px;margin:0 auto;line-height:1.8}.solutions-content p{font-size:1.125rem;color:var(--text-light);margin-bottom:24px}.contact-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:48px;margin-top:24px}.contact-info h3{font-size:1.5rem;font-weight:700;margin-bottom:16px;color:var(--primary-color)}.contact-info p{margin-bottom:12px;font-size:1.125rem}.contact-form{display:flex;flex-direction:column;gap:16px}.form-group input,.form-group textarea{width:100%;padding:12px 16px;border:1px solid var(--border-color);border-radius:6px;font-size:1rem;font-family:inherit;transition:border-color .2s ease}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--secondary-color);box-shadow:0 0 0 3px #3b82f61a}.btn-primary,.btn-secondary{padding:12px 24px;border-radius:6px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease;border:none;font-family:inherit}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover{background-color:var(--primary-dark);transform:translateY(-2px)}.btn-secondary{background-color:transparent;color:var(--primary-color);border:2px solid var(--primary-color)}.btn-secondary:hover{background-color:#1e3a8a0d;transform:translateY(-2px)}.footer{background-color:var(--primary-color);color:#fff;padding:32px 0;margin-top:auto}.footer .container{display:flex;flex-direction:column;align-items:center;gap:8px;text-align:center}.footer p{margin:0;font-size:1rem}@media (max-width: 768px){.header .container{flex-direction:column;gap:16px}.nav{flex-wrap:wrap;justify-content:center}.hero-content h1{font-size:2.25rem}.subtitle{font-size:1.125rem}.section-title{font-size:1.875rem}.cta-buttons{flex-direction:column;align-items:center}.contact-content{grid-template-columns:1fr}}