*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:#2b2f36;line-height:1.7;background:#f7f8fa}
a{color:#16365c;text-decoration:none}
img{max-width:100%;display:block}
.gh-wrap{max-width:1200px;margin:0 auto;padding:0 20px}
.gh-topbar{background:#0f2540;color:#cdd6e4;font-size:13px;padding:8px 0}
.gh-topbar .gh-wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
.gh-topbar a{color:#e8833a}
.gh-header{background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.06);position:sticky;top:0;z-index:100}
.gh-header .gh-wrap{display:flex;align-items:center;justify-content:space-between;padding:14px 20px}
.gh-logo img{height:46px;width:auto}
.gh-nav ul{list-style:none;display:flex;gap:28px}
.gh-nav a{font-size:15px;font-weight:600;color:#2b2f36;padding:6px 0;border-bottom:2px solid transparent}
.gh-nav a:hover,.gh-nav a.gh-active{color:#16365c;border-color:#e8833a}
.gh-burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:6px}
.gh-burger span{width:26px;height:2px;background:#16365c;display:block}
.gh-hero{position:relative;background:#16365c;color:#fff;overflow:hidden}
.gh-hero img{width:100%;height:480px;object-fit:cover;opacity:.55}
.gh-hero-text{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;max-width:1200px;margin:0 auto;padding:0 20px}
.gh-hero-text h1{font-size:40px;line-height:1.3;margin-bottom:14px}
.gh-hero-text p{font-size:17px;max-width:560px;margin-bottom:24px;color:#e2e8f0}
.gh-btn{display:inline-block;background:#e8833a;color:#fff;padding:12px 30px;border-radius:3px;font-weight:600;font-size:15px}
.gh-btn:hover{background:#d4732b;color:#fff}
.gh-section{padding:60px 0}
.gh-section.gh-gray{background:#eef1f5}
.gh-sec-head{text-align:center;margin-bottom:40px}
.gh-sec-head h2{font-size:30px;color:#16365c;margin-bottom:10px}
.gh-sec-head p{color:#6b7280;font-size:15px}
.gh-sec-head .gh-line{width:50px;height:3px;background:#e8833a;margin:14px auto 0}
.gh-grid{display:grid;gap:24px}
.gh-grid-3{grid-template-columns:repeat(3,1fr)}
.gh-grid-2{grid-template-columns:repeat(2,1fr)}
.gh-card{background:#fff;border-radius:6px;overflow:hidden;box-shadow:0 1px 3px rgba(0,0,0,.06);transition:.2s}
.gh-card:hover{transform:translateY(-3px);box-shadow:0 6px 18px rgba(0,0,0,.1)}
.gh-card img{width:100%;height:220px;object-fit:cover}
.gh-card-body{padding:20px}
.gh-card-body h3{font-size:18px;color:#16365c;margin-bottom:8px}
.gh-card-body p{font-size:14px;color:#6b7280}
.gh-about{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.gh-about img{border-radius:6px}
.gh-about h2{font-size:28px;color:#16365c;margin-bottom:16px}
.gh-about p{margin-bottom:12px;color:#3f4652}
.gh-steps{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-top:20px}
.gh-step{text-align:center;padding:24px 10px;background:#fff;border-radius:6px}
.gh-step .gh-num{width:42px;height:42px;border-radius:50%;background:#16365c;color:#fff;line-height:42px;margin:0 auto 12px;font-weight:700}
.gh-step h4{font-size:15px;color:#16365c;margin-bottom:6px}
.gh-step p{font-size:13px;color:#6b7280}
.gh-news-list{display:grid;gap:0}
.gh-news-item{display:grid;grid-template-columns:200px 1fr;gap:24px;padding:22px 0;border-bottom:1px solid #e5e7eb;align-items:center}
.gh-news-item img{width:200px;height:130px;object-fit:cover;border-radius:4px}
.gh-news-item .gh-date{color:#e8833a;font-size:13px;font-weight:600;margin-bottom:6px}
.gh-news-item h3{font-size:18px;color:#16365c;margin-bottom:8px}
.gh-news-item p{font-size:14px;color:#6b7280}
.gh-detail{padding:40px 0}
.gh-detail img{width:100%;max-height:420px;object-fit:cover;border-radius:6px;margin-bottom:24px}
.gh-detail h1{font-size:30px;color:#16365c;margin-bottom:10px}
.gh-detail .gh-meta{color:#6b7280;font-size:14px;margin-bottom:20px}
.gh-detail p{margin-bottom:14px}
.gh-spec{background:#fff;border-radius:6px;padding:24px;margin:20px 0}
.gh-spec h3{color:#16365c;margin-bottom:12px;font-size:18px}
.gh-spec table{width:100%;border-collapse:collapse}
.gh-spec td{padding:10px 12px;border-bottom:1px solid #eef1f5;font-size:14px}
.gh-spec td:first-child{width:140px;color:#6b7280;font-weight:600}
.gh-contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.gh-contact-info h3{color:#16365c;margin-bottom:14px;font-size:18px}
.gh-contact-info p{margin-bottom:10px;color:#3f4652}
.gh-advantage{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.gh-adv{background:#fff;padding:26px;border-radius:6px;border-top:3px solid #e8833a}
.gh-adv h4{color:#16365c;font-size:16px;margin-bottom:8px}
.gh-adv p{font-size:14px;color:#6b7280}
.gh-footer{background:#0f2540;color:#9aa7bd;padding:50px 0 20px;margin-top:40px}
.gh-footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:30px}
.gh-footer h4{color:#fff;font-size:16px;margin-bottom:14px}
.gh-footer ul{list-style:none}
.gh-footer li{margin-bottom:8px;font-size:14px}
.gh-footer a{color:#9aa7bd}
.gh-footer a:hover{color:#e8833a}
.gh-copy{text-align:center;padding-top:20px;border-top:1px solid #1e3a5c;font-size:13px;color:#6b7a94}
.gh-404{text-align:center;padding:100px 20px}
.gh-404 h1{font-size:80px;color:#16365c;line-height:1}
.gh-404 p{font-size:18px;margin:20px 0 30px;color:#6b7280}
@media(max-width:768px){
.gh-nav{display:none;position:absolute;top:74px;left:0;right:0;background:#fff;box-shadow:0 6px 12px rgba(0,0,0,.1);padding:16px 20px}
.gh-nav.gh-open{display:block}
.gh-nav ul{flex-direction:column;gap:14px}
.gh-burger{display:flex}
.gh-hero img{height:340px}
.gh-hero-text h1{font-size:26px}
.gh-grid-3,.gh-grid-2,.gh-about,.gh-contact-grid,.gh-advantage{grid-template-columns:1fr}
.gh-steps{grid-template-columns:repeat(2,1fr)}
.gh-news-item{grid-template-columns:1fr}
.gh-news-item img{width:100%;height:180px}
.gh-footer-grid{grid-template-columns:1fr 1fr}
.gh-sec-head h2{font-size:24px}
}