*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;color:#333;font-size:14px;line-height:1.7;background:#fff}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
ul{list-style:none}
.sw-topbar{background:#1a3a6b;color:#cdd9ea;padding:6px 0;font-size:12px}
.sw-topbar-inner{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;padding:0 15px}
.sw-header{background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.08);position:sticky;top:0;z-index:100}
.sw-header-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:12px 15px}
.sw-logo{display:flex;align-items:center;gap:10px}
.sw-logo img{width:48px;height:48px;object-fit:contain}
.sw-logo-text{font-size:18px;font-weight:700;color:#1a3a6b;line-height:1.3}
.sw-logo-text small{display:block;font-size:11px;font-weight:400;color:#888;letter-spacing:1px}
.sw-nav{display:flex;gap:5px}
.sw-nav a{padding:8px 16px;font-size:15px;color:#333;border-radius:3px;transition:.2s;font-weight:500}
.sw-nav a:hover,.sw-nav a.sw-active{color:#1a4b8c;background:#eef3fa}
.sw-banner{position:relative;height:480px;overflow:hidden}
.sw-banner img{width:100%;height:100%;object-fit:cover}
.sw-banner-mask{position:absolute;inset:0;background:linear-gradient(135deg,rgba(26,58,107,.85),rgba(26,75,140,.65));display:flex;align-items:center}
.sw-banner-text{max-width:1200px;margin:0 auto;padding:0 15px;width:100%}
.sw-banner-text h1{color:#fff;font-size:38px;margin-bottom:12px;font-weight:700}
.sw-banner-text p{color:#d4e0f0;font-size:17px;max-width:600px}
.sw-banner-btn{display:inline-block;margin-top:24px;padding:12px 36px;background:#c8a44a;color:#fff;border-radius:4px;font-size:15px;transition:.2s}
.sw-banner-btn:hover{background:#b08d3a}
.sw-section{padding:60px 0}
.sw-container{max-width:1200px;margin:0 auto;padding:0 15px}
.sw-sec-title{text-align:center;margin-bottom:40px}
.sw-sec-title h2{font-size:30px;color:#1a3a6b;margin-bottom:8px;font-weight:700}
.sw-sec-title span{display:block;width:60px;height:3px;background:#c8a44a;margin:12px auto}
.sw-sec-title p{color:#888;font-size:14px}
.sw-about-wrap{display:flex;gap:40px;align-items:center}
.sw-about-img{flex:1}
.sw-about-img img{border-radius:6px;box-shadow:0 4px 20px rgba(0,0,0,.12)}
.sw-about-text{flex:1.2}
.sw-about-text h3{font-size:22px;color:#1a3a6b;margin-bottom:16px}
.sw-about-text p{color:#555;margin-bottom:12px;text-indent:2em}
.sw-about-stats{display:flex;gap:30px;margin-top:24px}
.sw-stat{text-align:center}
.sw-stat b{font-size:30px;color:#1a4b8c;display:block}
.sw-stat span{font-size:13px;color:#888}
.sw-prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sw-prod-card{background:#fff;border:1px solid #e8e8e8;border-radius:6px;overflow:hidden;transition:.25s}
.sw-prod-card:hover{box-shadow:0 8px 25px rgba(26,75,140,.15);transform:translateY(-3px)}
.sw-prod-card img{height:220px;width:100%;object-fit:cover}
.sw-prod-body{padding:18px}
.sw-prod-body h3{font-size:17px;color:#1a3a6b;margin-bottom:8px}
.sw-prod-body p{font-size:13px;color:#777;line-height:1.6}
.sw-prod-more{display:inline-block;margin-top:10px;color:#1a4b8c;font-size:13px;font-weight:600}
.sw-adv{background:#f5f7fa}
.sw-adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.sw-adv-card{text-align:center;padding:30px 20px;background:#fff;border-radius:6px}
.sw-adv-icon{width:60px;height:60px;margin:0 auto 16px;background:#eef3fa;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:26px;color:#1a4b8c;font-weight:700}
.sw-adv-card h4{font-size:16px;color:#1a3a6b;margin-bottom:8px}
.sw-adv-card p{font-size:13px;color:#888}
.sw-equip-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.sw-equip-grid img{height:200px;width:100%;object-fit:cover;border-radius:6px}
.sw-news-list{display:flex;flex-direction:column;gap:0}
.sw-news-item{display:flex;gap:24px;padding:20px 0;border-bottom:1px solid #eee;align-items:center}
.sw-news-item img{width:180px;height:120px;object-fit:cover;border-radius:4px;flex-shrink:0}
.sw-news-body{flex:1}
.sw-news-body time{font-size:12px;color:#c8a44a;font-weight:600}
.sw-news-body h3{font-size:16px;color:#333;margin:6px 0}
.sw-news-body h3:hover{color:#1a4b8c}
.sw-news-body p{font-size:13px;color:#888}
.sw-cta{background:linear-gradient(135deg,#1a3a6b,#1a4b8c);color:#fff;padding:50px 0;text-align:center}
.sw-cta h2{font-size:26px;margin-bottom:10px}
.sw-cta p{color:#cdd9ea;margin-bottom:20px}
.sw-cta-btn{display:inline-block;padding:12px 40px;background:#c8a44a;color:#fff;border-radius:4px;font-size:16px;font-weight:600}
.sw-footer{background:#14284a;color:#8aa0c0;padding:50px 0 0}
.sw-footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:30px;padding-bottom:30px}
.sw-footer h4{color:#fff;font-size:15px;margin-bottom:16px}
.sw-footer p,.sw-footer li{font-size:13px;line-height:2}
.sw-footer-links a{display:block;font-size:13px;line-height:2.2}
.sw-footer-links a:hover{color:#fff}
.sw-bottom{border-top:1px solid #2a4066;padding:16px 0;text-align:center;font-size:12px;color:#6a80a0}
.sw-page-banner{height:200px;background:linear-gradient(135deg,#1a3a6b,#1a4b8c);display:flex;align-items:center}
.sw-page-banner h1{color:#fff;font-size:28px}
.sw-page-banner p{color:#a0b8d8;font-size:13px;margin-top:6px}
.sw-breadcrumb{padding:16px 0;font-size:13px;color:#888}
.sw-breadcrumb a{color:#1a4b8c}
.sw-detail{display:flex;gap:30px;margin-top:20px}
.sw-detail-img{flex:1}
.sw-detail-img img{border-radius:6px}
.sw-detail-info{flex:1.2}
.sw-detail-info h2{font-size:24px;color:#1a3a6b;margin-bottom:16px}
.sw-detail-info table{width:100%;border-collapse:collapse;font-size:14px}
.sw-detail-info td{padding:10px 12px;border-bottom:1px solid #eee}
.sw-detail-info td:first-child{color:#888;width:120px}
.sw-detail-desc{margin-top:30px;line-height:1.9}
.sw-detail-desc h3{font-size:18px;color:#1a3a6b;margin-bottom:12px;padding-left:10px;border-left:3px solid #c8a44a}
.sw-detail-desc p{margin-bottom:10px;text-indent:2em;color:#555}
.sw-contact-grid{display:flex;gap:40px;margin-top:20px}
.sw-contact-info{flex:1}
.sw-contact-info h3{font-size:20px;color:#1a3a6b;margin-bottom:20px}
.sw-contact-row{display:flex;gap:12px;margin-bottom:18px;align-items:flex-start}
.sw-contact-row b{color:#1a3a6b;min-width:80px}
.sw-form{flex:1.2;background:#f5f7fa;padding:30px;border-radius:6px}
.sw-form input,.sw-form textarea{width:100%;padding:10px 12px;margin-bottom:14px;border:1px solid #ddd;border-radius:4px;font-size:14px;font-family:inherit}
.sw-form textarea{height:120px;resize:vertical}
.sw-form button{padding:12px 36px;background:#1a4b8c;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:15px}
.sw-form button:hover{background:#153a6b}
.sw-404{text-align:center;padding:100px 15px}
.sw-404 h1{font-size:80px;color:#1a4b8c;margin-bottom:10px}
.sw-404 p{font-size:18px;color:#666;margin-bottom:30px}
.sw-404 a{display:inline-block;padding:12px 36px;background:#1a4b8c;color:#fff;border-radius:4px}
.sw-news-single{max-width:800px;margin:0 auto;padding:30px 15px}
.sw-news-single img{width:100%;border-radius:6px;margin:20px 0}
.sw-news-single h1{font-size:24px;color:#1a3a6b;margin-bottom:10px}
.sw-news-meta{font-size:13px;color:#999;border-bottom:1px solid #eee;padding-bottom:14px;margin-bottom:20px}
.sw-news-content p{text-indent:2em;margin-bottom:14px;line-height:2;color:#444}
.sw-nav-toggle{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:#1a3a6b}
@media(max-width:768px){
.sw-banner{height:320px}
.sw-banner-text h1{font-size:26px}
.sw-banner-text p{font-size:14px}
.sw-about-wrap,.sw-detail,.sw-contact-grid{flex-direction:column}
.sw-prod-grid,.sw-adv-grid,.sw-equip-grid{grid-template-columns:repeat(2,1fr)}
.sw-footer-grid{grid-template-columns:1fr 1fr}
.sw-nav{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;padding:10px 15px;box-shadow:0 4px 12px rgba(0,0,0,.1)}
.sw-nav.sw-open{display:flex}
.sw-nav-toggle{display:block}
.sw-news-item{flex-direction:column}
.sw-news-item img{width:100%;height:180px}
.sw-about-stats{flex-wrap:wrap;gap:15px}
}