@charset "utf-8";
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Microsoft YaHei",Arial,sans-serif;font-size:14px;line-height:1.6;color:#333;background:#fff}
a{text-decoration:none;color:inherit;transition:color .3s}
a:hover{color:#0066cc}
ul,ol{list-style:none}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 15px}
.header{background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.1);position:fixed;width:100%;top:0;z-index:1000}
.header-inner{display:flex;justify-content:space-between;align-items:center;padding:15px 0}
.logo{font-size:24px;font-weight:bold;color:#0066cc}
.logo span{color:#333}
.nav{display:flex;gap:30px}
.nav a{padding:5px 0;position:relative}
.nav a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:#0066cc;transition:width .3s}
.nav a:hover::after,.nav a.active::after{width:100%}
.menu-toggle{display:none;cursor:pointer;font-size:24px}
.banner{height:500px;background:linear-gradient(135deg,#0066cc 0%,#004c99 100%);margin-top:70px;display:flex;align-items:center;justify-content:center;color:#fff;text-align:center}
.banner h1{font-size:48px;margin-bottom:20px}
.banner p{font-size:20px;opacity:.9}
.about-section,.products-section,.service-section,.news-section,.contact-section{padding:80px 0}
.section-title{text-align:center;font-size:36px;margin-bottom:50px;color:#333}
.section-title span{color:#0066cc}
.about-content{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.about-text h3{font-size:24px;margin-bottom:20px;color:#0066cc}
.about-text p{margin-bottom:15px;text-align:justify}
.about-img{height:300px;background:linear-gradient(135deg,#e8f4ff 0%,#cce4ff 100%);border-radius:10px;display:flex;align-items:center;justify-content:center}
.products-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:30px}
.product-card{background:#fff;border:1px solid #eee;border-radius:10px;overflow:hidden;transition:transform .3s,box-shadow .3s}
.product-card:hover{transform:translateY(-5px);box-shadow:0 10px 30px rgba(0,0,0,.1)}
.product-img{height:200px;background:linear-gradient(135deg,#f5f5f5 0%,#e0e0e0 100%);display:flex;align-items:center;justify-content:center}
.product-info{padding:20px}
.product-info h3{font-size:18px;margin-bottom:10px;color:#333}
.product-info p{color:#666;font-size:14px}
.service-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px}
.service-item{background:#f8f9fa;padding:30px;border-radius:10px;border-left:4px solid #0066cc}
.service-item h3{font-size:20px;margin-bottom:15px;color:#0066cc}
.news-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:30px}
.news-card{background:#fff;border:1px solid #eee;border-radius:10px;overflow:hidden}
.news-img{height:200px;background:linear-gradient(135deg,#e8f4ff 0%,#cce4ff 100%);display:flex;align-items:center;justify-content:center}
.news-content{padding:20px}
.news-content h3{font-size:18px;margin-bottom:10px}
.news-content p{color:#666;font-size:14px;margin-bottom:15px}
.news-date{color:#999;font-size:12px}
.contact-content{display:grid;grid-template-columns:1fr 1fr;gap:50px}
.contact-info h3{font-size:24px;margin-bottom:20px;color:#0066cc}
.contact-info p{margin-bottom:15px;padding-left:25px;position:relative}
.contact-info p::before{content:'●';position:absolute;left:0;color:#0066cc}
.contact-map{height:300px;background:#e0e0e0;border-radius:10px;display:flex;align-items:center;justify-content:center}
.contact-form h3{font-size:24px;margin-bottom:20px;color:#0066cc}
.form-group{margin-bottom:20px}
.form-group label{display:block;margin-bottom:5px;font-weight:500}
.form-group input,.form-group textarea{width:100%;padding:12px;border:1px solid #ddd;border-radius:5px;font-size:14px;font-family:inherit}
.form-group textarea{height:120px;resize:vertical}
.btn{display:inline-block;padding:12px 30px;background:#0066cc;color:#fff;border:none;border-radius:5px;cursor:pointer;font-size:16px;transition:background .3s}
.btn:hover{background:#0052a3;color:#fff}
.footer{background:#333;color:#fff;padding:40px 0 20px}
.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:30px;margin-bottom:30px}
.footer-about h3{font-size:20px;margin-bottom:15px}
.footer-about p{color:#999;line-height:1.8}
.footer-links h4{font-size:16px;margin-bottom:15px}
.footer-links ul li{margin-bottom:10px}
.footer-links ul li a{color:#999}
.footer-links ul li a:hover{color:#fff}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid #444;color:#666;font-size:12px}
.page-header{background:linear-gradient(135deg,#0066cc 0%,#004c99 100%);color:#fff;text-align:center;padding:120px 0 60px}
.page-header h1{font-size:36px;margin-bottom:10px}
.page-header p{opacity:.8}
.breadcrumb{background:#f5f5f5;padding:15px 0}
.breadcrumb .container{display:flex;gap:10px;font-size:14px}
.breadcrumb a{color:#666}
.breadcrumb span{color:#999}
@media(max-width:768px){
.nav{display:none;position:absolute;top:100%;left:0;width:100%;background:#fff;flex-direction:column;padding:20px;gap:15px;box-shadow:0 5px 10px rgba(0,0,0,.1)}
.nav.active{display:flex}
.menu-toggle{display:block}
.banner{height:400px}
.banner h1{font-size:32px}
.banner p{font-size:16px}
.about-content,.contact-content{grid-template-columns:1fr}
.section-title{font-size:28px}
.products-grid,.news-grid{grid-template-columns:1fr}
.page-header h1{font-size:28px}
}