*{margin:0;padding:0;box-sizing:border-box}:root{--primary-low-saturation-blue: #4a6fa5;--primary-blue-light: #7a97c5;--neutral-light-gray: #f5f5f5;--neutral-white: #fafafa;--neutral-gray: #e0e0e0;--neutral-dark-gray: #666666;--accent-light-green: #8cc63f;--accent-green-light: #a8d066;--text-primary: #333333;--text-secondary: #666666;--text-light: #999999;--border-color: #e0e0e0;--shadow-light: 0 2px 8px rgba(0, 0, 0, .08);--shadow-medium: 0 4px 16px rgba(0, 0, 0, .1)}html,body{height:100%;margin:0;padding:0}body{font-family:Microsoft YaHei,Source Han Sans CN,Arial,sans-serif;line-height:1.6;color:var(--text-primary);background-color:var(--neutral-white)}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 30px}.app{display:flex;flex-direction:column;min-height:100vh}.app main{flex:1;overflow-y:auto}.navbar{background-color:var(--neutral-white);border-bottom:1px solid var(--border-color);position:fixed;top:0;left:0;right:0;z-index:1000;transition:all .3s ease}.navbar .container{display:flex;justify-content:space-between;align-items:center;padding:20px 30px}.navbar-brand h1{font-size:1.6rem;font-weight:700;color:var(--primary-low-saturation-blue)}.navbar-nav ul{display:flex;list-style:none}.navbar-nav li{margin-left:40px}.navbar-nav a{text-decoration:none;color:var(--text-secondary);font-size:1rem;font-weight:500;transition:color .3s ease;position:relative}.navbar-nav a:hover{color:var(--primary-low-saturation-blue)}.navbar-nav a:after{content:"";position:absolute;bottom:-5px;left:0;width:0;height:2px;background-color:var(--primary-low-saturation-blue);transition:width .3s ease}.navbar-nav a:hover:after{width:100%}.hero{background-color:var(--neutral-light-gray);padding:100px 0 60px;text-align:center}.hero-content h2{font-size:2.4rem;font-weight:700;color:var(--primary-low-saturation-blue);margin-bottom:20px;line-height:1.3}.hero-content p{font-size:1.1rem;color:var(--text-secondary);margin-bottom:40px;max-width:800px;margin-left:auto;margin-right:auto;line-height:1.6}.btn-primary{display:inline-block;background-color:var(--primary-low-saturation-blue);color:#fff;padding:14px 32px;border-radius:4px;text-decoration:none;font-weight:500;transition:all .3s ease;border:none;cursor:pointer}.btn-primary:hover{background-color:var(--primary-blue-light);transform:translateY(-2px);box-shadow:var(--shadow-light)}.hero-buttons{display:flex;justify-content:center;gap:20px;flex-wrap:wrap}.btn-secondary{display:inline-block;background-color:transparent;color:var(--primary-low-saturation-blue);border:3px solid var(--primary-low-saturation-blue);padding:18px 48px;min-width:220px;font-size:1.1rem;border-radius:4px;text-decoration:none;font-weight:600;transition:all .3s ease;cursor:pointer}.btn-secondary:hover{background-color:var(--primary-low-saturation-blue);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-light)}.btn-secondary:active{transform:translateY(0);box-shadow:none}section{padding:60px 0;position:relative}.section-title{font-size:1.6rem;font-weight:700;color:var(--primary-low-saturation-blue);margin-bottom:40px;text-align:center;position:relative}.section-title:after{content:"";position:absolute;bottom:-15px;left:50%;transform:translate(-50%);width:80px;height:3px;background-color:var(--accent-light-green)}.about{background-color:var(--neutral-white)}.about-content{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}.about-text h3{font-size:1.3rem;font-weight:700;color:var(--primary-low-saturation-blue);margin-bottom:20px}.about-text p{font-size:.9rem;color:var(--text-secondary);line-height:1.5;margin-bottom:15px}.about-image{background-color:var(--neutral-light-gray);border-radius:8px;overflow:hidden;box-shadow:var(--shadow-light)}.about-image img{width:100%;height:auto;display:block}.products{background-color:var(--neutral-light-gray)}.products-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:40px}.product-item{background-color:var(--neutral-white);border-radius:8px;overflow:hidden;box-shadow:var(--shadow-light);transition:all .3s ease}.product-item:hover{box-shadow:var(--shadow-medium);transform:translateY(-5px)}.product-image{height:150px;background-color:var(--neutral-light-gray);overflow:hidden}.product-image img{width:100%;height:100%;object-fit:cover;display:block}.product-info{padding:20px}.product-info h3{font-size:1.1rem;font-weight:700;color:var(--primary-low-saturation-blue);margin-bottom:10px}.product-info p{font-size:.85rem;color:var(--text-secondary);line-height:1.5;margin-bottom:15px}.product-params{border-top:1px solid var(--border-color);padding-top:20px}.product-params h4{font-size:1rem;font-weight:700;color:var(--text-primary);margin-bottom:15px}.product-params ul{list-style:none}.product-params li{font-size:.9rem;color:var(--text-secondary);margin-bottom:8px;display:flex;align-items:center}.product-params li:before{content:"•";color:var(--accent-light-green);margin-right:10px;font-size:1.2rem}.certifications{background-color:var(--neutral-white)}.certifications-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:40px}.cert-item{background-color:var(--neutral-light-gray);border-radius:8px;padding:25px;text-align:center;transition:all .3s ease;box-shadow:var(--shadow-light)}.cert-item:hover{box-shadow:var(--shadow-medium);transform:translateY(-5px)}.cert-icon{width:60px;height:60px;margin:0 auto 15px;background-color:var(--neutral-white);border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-light)}.cert-icon img{width:40px;height:40px;display:block}.cert-item h3{font-size:1rem;font-weight:700;color:var(--primary-low-saturation-blue);margin-bottom:10px}.cert-item p{font-size:.85rem;color:var(--text-secondary);line-height:1.5}.contact{background-color:var(--neutral-light-gray)}.contact-content{display:grid;grid-template-columns:1fr 1fr;gap:40px}.contact-info h3{font-size:1.3rem;font-weight:700;color:var(--primary-low-saturation-blue);margin-bottom:20px}.contact-item{margin-bottom:15px;display:flex;align-items:flex-start}.contact-item-icon{width:32px;height:32px;background-color:var(--primary-low-saturation-blue);border-radius:50%;display:flex;align-items:center;justify-content:center;margin-right:15px;flex-shrink:0}.contact-item-icon img{width:16px;height:16px;display:block}.contact-item-info h4{font-size:1rem;font-weight:700;color:var(--text-primary);margin-bottom:3px}.contact-item-info p{font-size:1rem;color:var(--text-secondary);line-height:1.6}.contact-map{background-color:var(--neutral-white);border-radius:8px;overflow:hidden;box-shadow:var(--shadow-light);height:250px}.footer{background-color:var(--primary-low-saturation-blue);color:#fff;padding:15px 0;border-top:1px solid rgba(255,255,255,.2)}.footer-content{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}.record-info{font-size:.8rem;color:#fffc}.record-info a{color:#ffffffe6;text-decoration:none;transition:color .3s ease}.record-info a:hover{color:#fff;text-decoration:underline}.copyright{font-size:.8rem;color:#ffffffb3}@media (max-width: 992px){.about-content,.contact-content{grid-template-columns:1fr;gap:40px}.navbar-nav li{margin-left:30px}.hero-content h2{font-size:2rem}.section-title{font-size:1.8rem}}@media (max-width: 768px){.navbar .container{flex-direction:column;padding:15px 20px}.navbar-brand h1{font-size:1.4rem;margin-bottom:15px}.navbar-nav li{margin-left:15px;margin-right:15px}.hero{padding:120px 0 80px}.hero-content h2{font-size:1.8rem}.hero-content p{font-size:1rem}section{padding:80px 0}.section-title{font-size:1.6rem}.products-content{grid-template-columns:1fr}.certifications-content{grid-template-columns:repeat(2,1fr)}}@media (max-width: 480px){.container{padding:0 15px}.navbar-nav ul{flex-wrap:wrap;justify-content:center}.navbar-nav li{margin:0 10px 10px}.hero-content h2{font-size:1.6rem}.section-title{font-size:1.4rem}.certifications-content{grid-template-columns:1fr}.product-info,.cert-item{padding:20px}}.text-center{text-align:center}.mt-20{margin-top:20px}.mb-20{margin-bottom:20px}.mt-40{margin-top:40px}.mb-40{margin-bottom:40px}.img-fluid{width:100%;height:auto;display:block}.card{background-color:var(--neutral-white);border-radius:8px;box-shadow:var(--shadow-light);overflow:hidden;transition:all .3s ease}.card:hover{box-shadow:var(--shadow-medium);transform:translateY(-5px)}.card-body{padding:30px}.card-title{font-size:1.3rem;font-weight:700;color:var(--primary-low-saturation-blue);margin-bottom:15px}.card-text{font-size:.95rem;color:var(--text-secondary);line-height:1.6}