*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Microsoft YaHei",-apple-system,"PingFang SC","Helvetica Neue",Arial,sans-serif;color:#333;line-height:1.7;background:#f5f6f8}
a{color:#0a4d8c;text-decoration:none}
a:hover{color:#c8102e}
img{max-width:100%;display:block}
.wrap{max-width:1200px;margin:0 auto;padding:0 15px}
/* 顶栏 */
.topbar{background:#0a4d8c;color:#fff;font-size:13px;padding:6px 0}
.topbar .wrap{display:flex;justify-content:space-between;flex-wrap:wrap}
.topbar b{color:#ffd54d}
/* 头部 */
header{background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.08);position:sticky;top:0;z-index:99}
.hd{display:flex;align-items:center;justify-content:space-between;padding:12px 0;flex-wrap:wrap}
.logo h1{font-size:24px;color:#0a4d8c;letter-spacing:1px}
.logo p{font-size:12px;color:#888;letter-spacing:3px}
nav ul{display:flex;list-style:none}
nav a{display:block;padding:10px 16px;color:#333;font-size:15px;font-weight:600}
nav a.on,nav a:hover{color:#fff;background:#c8102e;border-radius:3px}
#menubtn{display:none;font-size:24px;background:none;border:none;cursor:pointer;color:#0a4d8c}
/* banner */
.banner{position:relative;background:#0a4d8c}
.banner img{width:100%;height:420px;object-fit:cover;opacity:.55}
.banner .bt{position:absolute;top:50%;left:0;right:0;transform:translateY(-50%);text-align:center;color:#fff;padding:0 15px}
.banner .bt h2{font-size:36px;margin-bottom:10px;text-shadow:0 2px 6px rgba(0,0,0,.5)}
.banner .bt p{font-size:16px;letter-spacing:2px}
/* 区块 */
.sec{padding:44px 0}
.sec.gray{background:#fff}
.tit{text-align:center;margin-bottom:30px}
.tit h2{font-size:28px;color:#0a4d8c;display:inline-block;border-bottom:3px solid #c8102e;padding-bottom:8px}
.tit p{color:#888;font-size:14px;margin-top:6px;letter-spacing:2px}
.cols{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:#fff;border:1px solid #e6e9ee;border-radius:6px;overflow:hidden;transition:.25s}
.card:hover{box-shadow:0 8px 22px rgba(0,0,0,.12);transform:translateY(-4px)}
.card .cb{padding:18px}
.card h3{font-size:18px;color:#0a4d8c;margin-bottom:8px}
.card p{font-size:14px;color:#666}
.card img{width:100%;height:210px;object-fit:cover;background:#dde3ea}
/* 简介图文 */
.aboutbox{display:grid;grid-template-columns:1fr 1.1fr;gap:30px;align-items:center}
.aboutbox img{border-radius:6px}
.aboutbox p{margin-bottom:12px;text-indent:2em;font-size:15px}
/* 页头图 */
.pagehead{background:#0a4d8c url('images/factory.jpg') center/cover;color:#fff;padding:52px 0;text-align:center;position:relative}
.pagehead::before{content:'';position:absolute;inset:0;background:rgba(6,45,84,.72)}
.pagehead .wrap{position:relative}
.pagehead h2{font-size:30px}
.pagehead p{font-size:13px;letter-spacing:3px;margin-top:6px;color:#bcd}
/* 面包屑 */
.crumb{font-size:13px;color:#999;padding:12px 0}
/* 内容 */
.content{background:#fff;border:1px solid #e6e9ee;border-radius:6px;padding:30px;margin-bottom:40px}
.content h3{color:#0a4d8c;font-size:20px;margin:20px 0 10px;border-left:4px solid #c8102e;padding-left:10px}
.content h3:first-child{margin-top:0}
.content p{margin-bottom:12px;font-size:15px}
.content ul,.content ol{padding-left:24px;margin-bottom:12px}
.content li{margin-bottom:6px;font-size:15px}
/* 规格表 */
table.spec{width:100%;border-collapse:collapse;margin:12px 0 20px;font-size:14px}
table.spec th,table.spec td{border:1px solid #d9dee5;padding:9px 12px;text-align:left}
table.spec th{background:#eef3f8;color:#0a4d8c}
/* 新闻列表 */
.newslist li{list-style:none;display:flex;justify-content:space-between;border-bottom:1px dashed #ddd;padding:14px 4px;align-items:center}
.newslist a{font-size:15px;color:#333}
.newslist a:hover{color:#c8102e}
.newslist span{color:#aaa;font-size:13px;flex-shrink:0;margin-left:15px}
/* 荣誉 */
.honorgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.honorgrid .h{background:#f7f9fc;border:1px solid #e2e8f0;border-radius:6px;padding:22px 12px;text-align:center}
.honorgrid .h b{color:#c8102e;font-size:15px;display:block;margin-bottom:6px}
.honorgrid .h i{font-style:normal;color:#777;font-size:13px}
/* 联系 */
.contactgrid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.cinfo p{margin-bottom:14px;font-size:15px}
.cinfo b{color:#0a4d8c;display:inline-block;min-width:86px}
.cmap{background:#eef2f6;border:1px dashed #b9c6d6;border-radius:6px;min-height:280px;display:flex;align-items:center;justify-content:center;color:#8aa;text-align:center;padding:20px}
/* 页脚 */
footer{background:#12283f;color:#9fb3c8;padding:34px 0 0;margin-top:20px}
.fcols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:26px;padding-bottom:24px}
.fcols h4{color:#fff;font-size:16px;margin-bottom:12px}
.fcols a{display:block;color:#9fb3c8;font-size:14px;margin-bottom:8px}
.fcols a:hover{color:#fff}
.fcols p{font-size:14px;margin-bottom:8px}
.copy{border-top:1px solid #23405e;padding:14px 0;text-align:center;font-size:13px;color:#7b8ea3}
.copy a{color:#7b8ea3}
/* sitemap */
.sitemap ol{list-style:none;padding-left:0}
.sitemap>li{margin-bottom:14px}
.sitemap ul{list-style:none;padding-left:20px}
/* 自适应 */
@media (max-width:900px){
 .cols,.aboutbox,.contactgrid,.fcols{grid-template-columns:1fr}
 .honorgrid{grid-template-columns:1fr 1fr}
 .banner img{height:260px}
 .banner .bt h2{font-size:24px}
 #menubtn{display:block}
 nav ul{display:none;width:100%;flex-direction:column;padding:8px 0}
 nav.show ul{display:flex}
 nav{width:100%}
 .content{padding:18px}
}