*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;color:#333;font-size:15px;line-height:1.7;background:#fff}
a{color:#333;text-decoration:none}
a:hover{color:#e88b2d}
img{max-width:100%;display:block}
.topbar{background:#12395e;color:#fff;font-size:13px}
.topbar .w{display:flex;justify-content:space-between;padding:6px 0}
.w{max-width:1150px;margin:0 auto;padding:0 15px}
.header{background:#fff;border-bottom:1px solid #eee;position:sticky;top:0;z-index:99}
.header .w{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo{font-size:22px;font-weight:bold;color:#12395e}
.logo b{color:#e88b2d}
.nav{display:flex;gap:28px}
.nav a{font-size:16px;padding:20px 2px;display:block;border-bottom:2px solid transparent}
.nav a:hover{border-color:#e88b2d;color:#e88b2d}
.banner{position:relative;color:#fff}
.banner img{width:100%;height:420px;object-fit:cover;filter:brightness(.55)}
.banner .txt{position:absolute;left:0;right:0;top:50%;transform:translateY(-50%);text-align:center}
.banner h2{font-size:40px;letter-spacing:2px;margin-bottom:12px;text-shadow:0 2px 8px rgba(0,0,0,.4)}
.banner p{font-size:17px;margin-bottom:24px;text-shadow:0 1px 4px rgba(0,0,0,.4)}
.btn{display:inline-block;background:#e88b2d;color:#fff;padding:12px 38px;border-radius:4px;font-size:16px}
.btn:hover{background:#d67c1f;color:#fff}
.sec{padding:60px 0}
.sec.gray{background:#f6f8fa}
.sec-title{text-align:center;margin-bottom:40px}
.sec-title h2{font-size:28px;color:#12395e;display:inline-block;padding:0 20px 10px;border-bottom:3px solid #e88b2d}
.sec-title p{color:#888;margin-top:10px;font-size:14px}
.svc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.svc-card{background:#fff;border:1px solid #eee;border-radius:6px;overflow:hidden;transition:.3s}
.svc-card:hover{box-shadow:0 8px 24px rgba(0,0,0,.1);transform:translateY(-4px)}
.svc-card img{height:150px;width:100%;object-fit:cover}
.svc-card h3{padding:14px 15px 4px;font-size:17px;color:#12395e}
.svc-card p{padding:0 15px 18px;font-size:13px;color:#777}
.about-box{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.about-box img{border-radius:6px;height:300px;object-fit:cover;width:100%}
.about-box h3{font-size:22px;color:#12395e;margin-bottom:14px}
.about-box p{color:#666;margin-bottom:10px}
.num-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:26px}
.num-grid b{font-size:30px;color:#e88b2d;display:block}
.num-grid span{color:#888;font-size:13px}
.case-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.case-card{position:relative;border-radius:6px;overflow:hidden}
.case-card img{height:190px;width:100%;object-fit:cover;transition:.4s}
.case-card:hover img{transform:scale(1.06)}
.case-card span{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(transparent,rgba(0,0,0,.75));color:#fff;padding:26px 12px 10px;font-size:15px}
.news-list{max-width:820px;margin:0 auto}
.news-list li{list-style:none;display:flex;justify-content:space-between;border-bottom:1px dashed #e5e5e5;padding:13px 4px}
.news-list li a{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.news-list li span{color:#aaa;font-size:13px;margin-left:20px}
.crumb{background:#f6f8fa;border-bottom:1px solid #eee;font-size:13px;color:#888}
.crumb .w{padding:11px 0}
.crumb a{color:#888}
.page-box{max-width:1150px;margin:0 auto;padding:40px 15px 60px}
.list-main li{list-style:none;border-bottom:1px dashed #e5e5e5;padding:18px 4px;display:flex;gap:16px}
.list-main li .date{color:#bbb;font-size:13px;white-space:nowrap;padding-top:3px}
.list-main li h3{font-size:16px;font-weight:normal;margin-bottom:5px}
.list-main li p{font-size:13px;color:#999}
.pager{text-align:center;margin-top:30px;color:#888;font-size:14px}
.pager a,.pager b{display:inline-block;padding:6px 13px;border:1px solid #ddd;margin:0 3px;border-radius:3px}
.pager b{background:#12395e;color:#fff;border-color:#12395e}
.art-title{text-align:center;border-bottom:1px solid #eee;padding-bottom:22px}
.art-title h1{font-size:26px;color:#12395e;margin-bottom:12px;line-height:1.4}
.art-title .meta{color:#999;font-size:13px}
.art-body{margin-top:28px;font-size:15.5px;color:#444}
.art-body p{margin-bottom:16px}
.art-body img{margin:12px auto;border-radius:6px}
.contact-band{background:#12395e;color:#fff;text-align:center;padding:38px 15px}
.contact-band h3{font-size:24px;margin-bottom:8px}
.contact-band .tel{font-size:30px;color:#ffc46b;font-weight:bold;letter-spacing:1px}
.footer{background:#0d2b47;color:#9db4c8;font-size:13px;padding:36px 0 0}
.footer .w{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px;padding-bottom:26px}
.footer h4{color:#fff;font-size:15px;margin-bottom:12px}
.footer a{color:#9db4c8;display:block;padding:3px 0}
.copy{border-top:1px solid #1d4064;text-align:center;padding:14px 0;font-size:12px;color:#6f89a3}
@media(max-width:860px){
.svc-grid,.case-grid{grid-template-columns:repeat(2,1fr)}
.about-box,.footer .w{grid-template-columns:1fr}
.banner h2{font-size:26px}
.banner img{height:280px}
.nav{gap:14px;overflow-x:auto}
.logo{font-size:17px}
}
.catnav{margin:0 0 18px;padding:10px 0;border-bottom:2px solid #eee;overflow:hidden}
.catnav a{display:inline-block;margin-right:20px;font-size:15px;color:#555;text-decoration:none}
.catnav a:hover{color:#333}

.flow-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;margin-top:26px}
.flow-card{background:#fff;border:1px solid #eee;border-radius:6px;padding:22px 14px;text-align:center;transition:.3s}
.flow-card:hover{box-shadow:0 8px 24px rgba(0,0,0,.1);transform:translateY(-4px)}
.flow-card b{display:block;width:40px;height:40px;line-height:40px;border-radius:50%;background:#12395e;color:#ffc46b;margin:0 auto 12px;font-size:16px}
.flow-card h3{font-size:16px;color:#12395e;margin-bottom:6px}
.flow-card p{font-size:13px;color:#777;line-height:1.6}
@media(max-width:1024px){.flow-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:860px){.flow-grid{grid-template-columns:repeat(2,1fr)}}
/* SEO additions */
.banner h1{font-size:40px;letter-spacing:2px;margin-bottom:12px;text-shadow:0 2px 8px rgba(0,0,0,.4)}
@media(max-width:860px){.banner h1{font-size:26px}}
.prenext{display:flex;justify-content:space-between;gap:16px;padding:16px 0 4px;margin-top:20px;border-top:1px solid #e5e9ef;font-size:14px}
.prenext .pn-item{flex:1;min-width:0;color:#666}
.prenext .pn-next{text-align:right}
.prenext a{color:#12395e;text-decoration:none}
.prenext a:hover{color:#e88b2d}

/* ===== 详情页 相关推荐/最新文章 ===== */
.art-rel{display:flex;gap:20px;margin:26px 0 10px;flex-wrap:wrap}
.rel-box{flex:1 1 300px;background:#f7f9fb;border:1px solid #e6ecf2;border-radius:8px;padding:14px 16px;min-width:280px}
.rel-title{font-size:17px;color:#0b2a4a;margin:0 0 10px;padding-left:10px;border-left:4px solid #1e6fd9;line-height:1.4}
.rel-list{list-style:none;margin:0;padding:0}
.rel-list li{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:7px 0;border-bottom:1px dashed #e2e8f0;font-size:14px}
.rel-list li:last-child{border-bottom:0}
.rel-list li a{flex:1;color:#333;text-decoration:none;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rel-list li a:hover{color:#1e6fd9}
.rel-list li span{color:#999;font-size:12px;white-space:nowrap}
@media(max-width:640px){.rel-list li span{display:none}}