*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Microsoft YaHei","PingFang SC",Helvetica,Arial,sans-serif;color:#333;line-height:1.7;background:#fff}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block;border:0}
ul,ol{list-style:none}
.jh-wrap{width:1200px;max-width:92%;margin:0 auto}
.jh-topbar{background:#0d2d5c;color:#cfe0f5;font-size:13px;padding:7px 0}
.jh-topbar .jh-wrap{display:flex;justify-content:space-between;align-items:center}
.jh-topbar a{color:#cfe0f5;margin-left:18px}
.jh-topbar a:hover{color:#fff}
.jh-header{background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.06);position:sticky;top:0;z-index:99}
.jh-header .jh-wrap{display:flex;align-items:center;justify-content:space-between;height:82px}
.jh-logo img{height:54px;width:auto}
.jh-nav>ul{display:flex}
.jh-nav>ul>li{position:relative}
.jh-nav>ul>li>a{display:block;padding:0 22px;line-height:82px;font-size:16px;color:#222;font-weight:500}
.jh-nav>ul>li>a:hover,.jh-nav>ul>li.jh-on>a{color:#1a4b8c}
.jh-nav>ul>li.jh-on>a{border-bottom:3px solid #1a4b8c}
.jh-cta{background:#e6a23c;color:#fff;padding:10px 22px;border-radius:4px;font-size:14px;font-weight:bold}
.jh-cta:hover{background:#cf8a28}
.jh-banner{position:relative;background:linear-gradient(120deg,#0d2d5c 0%,#1a4b8c 60%,#2a6bb5 100%);color:#fff;overflow:hidden}
.jh-banner .jh-wrap{display:flex;align-items:center;min-height:460px;padding:50px 0;gap:40px}
.jh-banner-txt{flex:1}
.jh-banner-txt h1{font-size:38px;line-height:1.35;margin-bottom:18px;font-weight:bold}
.jh-banner-txt p{font-size:16px;color:#d8e6f7;margin-bottom:28px;max-width:560px}
.jh-banner-txt .jh-btn{display:inline-block;background:#e6a23c;color:#fff;padding:12px 32px;border-radius:4px;margin-right:14px;font-weight:bold}
.jh-banner-txt .jh-btn.plain{background:transparent;border:1px solid #fff}
.jh-banner-img{flex:1}
.jh-banner-img img{border-radius:6px;box-shadow:0 10px 40px rgba(0,0,0,.3)}
.jh-stats{background:#f4f7fb;padding:34px 0}
.jh-stats .jh-wrap{display:flex;justify-content:space-around;text-align:center}
.jh-stat b{display:block;font-size:34px;color:#1a4b8c;font-weight:bold}
.jh-stat span{font-size:14px;color:#666}
.jh-sec{padding:64px 0}
.jh-sec-tit{text-align:center;margin-bottom:42px}
.jh-sec-tit h2{font-size:30px;color:#1a4b8c;margin-bottom:10px}
.jh-sec-tit p{color:#888;font-size:15px}
.jh-prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.jh-prod-card{border:1px solid #e6ecf4;border-radius:6px;overflow:hidden;background:#fff;transition:.3s}
.jh-prod-card:hover{box-shadow:0 10px 30px rgba(26,75,140,.12);transform:translateY(-4px)}
.jh-prod-card .jh-pimg{height:210px;background:#f4f7fb;display:flex;align-items:center;justify-content:center;overflow:hidden}
.jh-prod-card .jh-pimg img{max-height:100%;width:auto}
.jh-prod-card .jh-pbody{padding:18px 20px 22px}
.jh-prod-card h3{font-size:17px;color:#222;margin-bottom:8px}
.jh-prod-card h3 a{color:#222}
.jh-prod-card h3 a:hover{color:#1a4b8c}
.jh-prod-card p{font-size:13px;color:#777;line-height:1.6}
.jh-adv{background:#f4f7fb}
.jh-adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.jh-adv-item{background:#fff;padding:30px 24px;border-radius:6px;text-align:center}
.jh-adv-item b{font-size:30px;color:#e6a23c;display:block;margin-bottom:10px}
.jh-adv-item h4{font-size:17px;color:#1a4b8c;margin-bottom:10px}
.jh-adv-item p{font-size:13px;color:#777;line-height:1.7}
.jh-about{display:flex;gap:50px;align-items:center}
.jh-about-img{flex:1}
.jh-about-img img{border-radius:6px}
.jh-about-txt{flex:1.2}
.jh-about-txt h2{font-size:26px;color:#1a4b8c;margin-bottom:16px}
.jh-about-txt p{color:#555;margin-bottom:14px;font-size:15px}
.jh-about-txt .jh-more{color:#1a4b8c;font-weight:bold}
.jh-news-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.jh-news-col{background:#fff;border:1px solid #e6ecf4;border-radius:6px;padding:24px}
.jh-news-col h3{font-size:18px;color:#1a4b8c;padding-bottom:12px;border-bottom:2px solid #1a4b8c;margin-bottom:14px}
.jh-news-col li{padding:9px 0;border-bottom:1px dashed #eee;font-size:14px}
.jh-news-col li a{color:#444;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.jh-news-col li a:hover{color:#1a4b8c}
.jh-news-col li span{float:right;color:#aaa;font-size:12px}
.jh-ctabar{background:#1a4b8c;color:#fff;padding:28px 0}
.jh-ctabar .jh-wrap{display:flex;justify-content:space-between;align-items:center}
.jh-ctabar h3{font-size:22px}
.jh-ctabar h3 em{color:#ffd27a;font-style:normal}
.jh-ctabar .jh-phone{font-size:26px;font-weight:bold}
.jh-footer{background:#0d2d5c;color:#9db4d4;padding:46px 0 0;font-size:13px}
.jh-footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:30px;padding-bottom:30px}
.jh-footer h4{color:#fff;font-size:15px;margin-bottom:14px}
.jh-footer li{padding:4px 0}
.jh-footer a:hover{color:#fff}
.jh-bottom{border-top:1px solid #1e3f73;padding:16px 0;text-align:center;color:#7e96bd;font-size:12px}
.jh-page-tit{background:linear-gradient(120deg,#0d2d5c,#1a4b8c);color:#fff;padding:46px 0}
.jh-page-tit h1{font-size:30px;margin-bottom:8px}
.jh-page-tit p{color:#bcd0ec;font-size:14px}
.jh-crumb{padding:14px 0;font-size:13px;color:#888}
.jh-crumb a{color:#1a4b8c}
.jh-detail{display:flex;gap:40px;padding:30px 0}
.jh-detail-img{flex:1;background:#f4f7fb;border-radius:6px;padding:20px;display:flex;align-items:center;justify-content:center;min-height:340px}
.jh-detail-img img{max-height:420px;width:auto}
.jh-detail-txt{flex:1.2}
.jh-detail-txt h1{font-size:26px;color:#1a4b8c;margin-bottom:14px}
.jh-detail-txt .jh-meta{color:#888;font-size:13px;margin-bottom:18px}
.jh-spec{width:100%;border-collapse:collapse;margin:18px 0}
.jh-spec th,.jh-spec td{border:1px solid #e0e6ee;padding:10px 14px;font-size:14px;text-align:left}
.jh-spec th{background:#f4f7fb;width:160px;color:#1a4b8c;font-weight:600}
.jh-article{padding:30px 0;max-width:860px;margin:0 auto}
.jh-article h1{font-size:26px;color:#222;line-height:1.4;margin-bottom:14px}
.jh-article-meta{color:#999;font-size:13px;padding-bottom:16px;border-bottom:1px solid #eee;margin-bottom:22px}
.jh-article-cover{margin-bottom:24px}
.jh-article-cover img{border-radius:6px;width:100%}
.jh-article p{margin-bottom:14px;color:#444;font-size:15px;line-height:1.9}
.jh-article h2{font-size:19px;color:#1a4b8c;margin:24px 0 12px}
.jh-pager{display:flex;justify-content:space-between;margin-top:40px;padding-top:20px;border-top:1px solid #eee;font-size:14px}
.jh-list{padding:30px 0}
.jh-list-item{display:flex;gap:24px;padding:22px 0;border-bottom:1px solid #eee}
.jh-list-item img{width:260px;height:160px;object-fit:cover;border-radius:4px;flex-shrink:0}
.jh-list-item h3{font-size:18px;margin-bottom:8px}
.jh-list-item h3 a{color:#222}
.jh-list-item h3 a:hover{color:#1a4b8c}
.jh-list-item p{color:#777;font-size:14px}
.jh-list-item time{color:#aaa;font-size:12px;margin-top:8px;display:block}
.jh-404{text-align:center;padding:90px 0}
.jh-404 b{font-size:100px;color:#1a4b8c;display:block;line-height:1}
.jh-404 h1{font-size:24px;margin:18px 0;color:#222}
.jh-404 p{color:#888;margin-bottom:24px}
.jh-404 a{background:#1a4b8c;color:#fff;padding:10px 28px;border-radius:4px;display:inline-block}
.jh-contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;padding:30px 0}
.jh-contact-card{background:#f4f7fb;padding:30px;border-radius:6px}
.jh-contact-card h3{color:#1a4b8c;margin-bottom:12px}
.jh-contact-card p{font-size:14px;color:#555;line-height:2}
.jh-menu-btn{display:none}
@media(max-width:900px){
.jh-wrap{width:94%}
.jh-nav{display:none;position:absolute;top:82px;left:0;right:0;background:#fff;box-shadow:0 6px 12px rgba(0,0,0,.1)}
.jh-nav>ul{flex-direction:column}
.jh-nav>ul>li>a{line-height:48px;padding:0 20px}
.jh-nav.jh-open{display:block}
.jh-menu-btn{display:block;font-size:24px;cursor:pointer}
.jh-banner .jh-wrap{flex-direction:column;min-height:auto;padding:30px 0}
.jh-banner-txt h1{font-size:26px}
.jh-prod-grid,.jh-adv-grid,.jh-news-cols,.jh-footer-grid{grid-template-columns:1fr 1fr}
.jh-about,.jh-detail{flex-direction:column}
.jh-stats .jh-wrap{flex-wrap:wrap;gap:16px}
.jh-detail-img img{max-height:300px}
.jh-list-item{flex-direction:column}
.jh-list-item img{width:100%;height:200px}
.jh-contact-grid{grid-template-columns:1fr}
}
@media(max-width:600px){
.jh-prod-grid,.jh-adv-grid,.jh-news-cols,.jh-footer-grid{grid-template-columns:1fr}
.jh-ctabar .jh-wrap{flex-direction:column;gap:12px;text-align:center}
.jh-topbar .jh-wrap{flex-direction:column;gap:4px}
}