/* 科瑞博网站样式 */
.pic{display:block}
*{margin:0;padding:0;box-sizing:border-box}
:root{--main:#0b4a8b;--main-d:#073564;--accent:#e8a317;--text:#333;--gray:#777;--line:#e5e5e5;--bg:#f5f7fa}
body{font:14px/1.7 "Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;color:var(--text);background:#fff}
a{color:inherit;text-decoration:none}
a:hover{color:var(--main)}
ul{list-style:none}
img{max-width:100%;display:block}
.w{width:1200px;max-width:100%;margin:0 auto;padding:0 16px}

/* 顶部 */
.topbar{background:var(--main-d);color:#cfd9e6;font-size:12px;line-height:32px}
.topbar .w{display:flex;justify-content:space-between}
.header{background:#fff}
.header .w{display:flex;align-items:center;justify-content:space-between;height:100px}
.logo{display:flex;align-items:center;gap:12px}
.logo-mark{width:58px;height:58px;border-radius:50%;background:linear-gradient(135deg,var(--accent),#d9821b);display:flex;align-items:center;justify-content:center;color:#fff;font-size:28px;font-weight:bold}
.logo-txt b{display:block;font-size:26px;color:var(--main);letter-spacing:2px}
.logo-txt span{font-size:12px;color:var(--gray);letter-spacing:1px}
.slogan{border-left:1px solid var(--line);padding-left:18px;margin-left:18px;color:var(--gray);font-size:15px}
.hotline{display:flex;align-items:center;gap:10px}
.hotline i{width:44px;height:44px;border-radius:50%;background:var(--main);color:#fff;display:flex;align-items:center;justify-content:center;font-style:normal;font-size:20px}
.hotline small{display:block;color:var(--gray)}
.hotline strong{font-size:22px;color:var(--accent);font-family:Arial}

/* 导航 */
.nav{background:var(--main);position:sticky;top:0;z-index:50;box-shadow:0 2px 6px rgba(0,0,0,.15)}
.nav ul.menu{display:flex}
.nav .menu>li{flex:1;position:relative;text-align:center}
.nav .menu>li>a{display:block;line-height:52px;color:#fff;font-size:16px}
.nav .menu>li>a:hover,.nav .menu>li.on>a{background:var(--accent);color:#fff}
.nav .sub{display:none;position:absolute;left:0;top:52px;width:100%;min-width:150px;background:#fff;box-shadow:0 4px 10px rgba(0,0,0,.15)}
.nav .menu>li:hover .sub{display:block}
.nav .sub a{display:block;line-height:40px;border-bottom:1px solid var(--line);font-size:14px}
.nav .sub a:hover{background:var(--main);color:#fff}
.nav-toggle{display:none}

/* 轮播 */
.banner{position:relative;height:500px;overflow:hidden;background:#0a2c52}
.banner .slide{position:absolute;inset:0;opacity:0;transition:opacity 1s;display:flex;align-items:center}
.banner .slide.on{opacity:1}
.banner .slide img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.banner .cap{position:relative;color:#fff}
.banner .cap h2{font-size:44px;letter-spacing:3px;text-shadow:0 2px 8px rgba(0,0,0,.4)}
.banner .cap p{font-size:20px;margin:12px 0 28px;opacity:.9}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:10px 32px;border-radius:3px}
.btn:hover{background:#d08f0c;color:#fff}
.banner .dots{position:absolute;bottom:22px;left:0;right:0;text-align:center}
.banner .dots span{display:inline-block;width:36px;height:4px;background:rgba(255,255,255,.5);margin:0 5px;cursor:pointer}
.banner .dots span.on{background:var(--accent)}

/* 搜索条 */
.searchbar{background:var(--bg);border-bottom:1px solid var(--line);line-height:50px}
.searchbar .w{display:flex;justify-content:space-between;align-items:center;gap:20px}
.searchbar .hot{color:var(--gray);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.searchbar .hot a{margin-right:14px}
.searchbar form{display:flex}
.searchbar input{height:32px;border:1px solid #ccc;padding:0 10px;width:220px;outline:0}
.searchbar button{height:32px;border:0;background:var(--main);color:#fff;padding:0 16px;cursor:pointer}

/* 板块标题 */
.sec{padding:60px 0}
.sec.gray{background:var(--bg)}
.tit{text-align:center;margin-bottom:36px}
.tit h3{font-size:30px;color:var(--main)}
.tit p{color:var(--gray);text-transform:uppercase;letter-spacing:2px;font-size:13px}
.tit em{display:block;width:50px;height:3px;background:var(--accent);margin:12px auto 0}

/* 产品推荐 */
.tabs{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.tabs a{border:1px solid var(--main);color:var(--main);padding:8px 26px;border-radius:30px;cursor:pointer}
.tabs a.on,.tabs a:hover{background:var(--main);color:#fff}
.tab-pane{display:none}
.tab-pane.on{display:block}
.pgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.pitem{background:#fff;border:1px solid var(--line);transition:.3s}
.pitem:hover{box-shadow:0 8px 24px rgba(11,74,139,.15);transform:translateY(-4px)}
.pitem .pic{aspect-ratio:4/3;overflow:hidden;background:#eef2f7}
.pitem .pic img{width:100%;height:100%;object-fit:cover;transition:.4s}
.pitem:hover .pic img{transform:scale(1.06)}
.pitem h4{font-size:15px;font-weight:normal;padding:12px 14px 4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pitem .more{display:block;padding:0 14px 14px;color:var(--accent);font-size:12px}

/* 公司简介 */
.about{display:flex;gap:50px;align-items:center}
.about .txt{flex:1}
.about .txt h4{font-size:22px;color:var(--main);margin-bottom:16px}
.about .txt p{color:#555;text-indent:2em;margin-bottom:12px}
.about .pic{flex:0 0 520px}
.nums{display:flex;gap:20px;margin:24px 0}
.nums div{flex:1;text-align:center;border:1px solid var(--line);padding:14px 0;background:#fff}
.nums b{display:block;font-size:30px;color:var(--accent);font-family:Arial}
.nums span{color:var(--gray);font-size:13px}

/* 优势 */
.adv{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.adv div{background:#fff;padding:30px 24px;text-align:center;border-top:3px solid var(--main)}
.adv i{display:inline-flex;width:64px;height:64px;border-radius:50%;background:#e9f0f8;color:var(--main);font-style:normal;font-size:28px;align-items:center;justify-content:center;margin-bottom:14px}
.adv h5{font-size:17px;margin-bottom:8px}
.adv p{color:var(--gray);font-size:13px}

/* 工程业绩 */
.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case{background:#fff;position:relative;overflow:hidden}
.case .pic{aspect-ratio:16/10;overflow:hidden}
.case .pic img{width:100%;height:100%;object-fit:cover;transition:.4s}
.case:hover .pic img{transform:scale(1.06)}
.case .info{padding:16px}
.case h4{font-size:16px;margin-bottom:6px}
.case p{color:var(--gray);font-size:13px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* 新闻 */
.news{display:flex;gap:30px}
.news .hot{flex:0 0 440px}
.news .hot .pic{aspect-ratio:16/10;overflow:hidden}
.news .hot h4{font-size:18px;margin:14px 0 6px}
.news .hot p{color:var(--gray)}
.news ul{flex:1}
.news li{display:flex;gap:18px;padding:16px 0;border-bottom:1px dashed var(--line)}
.news li:first-child{padding-top:0}
.news .date{flex:0 0 74px;height:74px;background:var(--main);color:#fff;text-align:center;padding-top:10px}
.news .date b{display:block;font-size:26px;line-height:1.2;font-family:Arial}
.news .date span{font-size:12px}
.news li h5{font-size:16px;margin-bottom:4px}
.news li p{color:var(--gray);font-size:13px}

/* 页脚 */
.footer{background:#132235;color:#a9b4c2;padding-top:46px}
.footer .cols{display:flex;gap:30px;padding-bottom:30px}
.footer h6{color:#fff;font-size:16px;margin-bottom:14px}
.footer .col{flex:1}
.footer .col.contact{flex:2}
.footer .col a{display:block;line-height:30px}
.footer .col a:hover{color:#fff}
.footer .qr{text-align:center}
.footer .qr img{width:110px;background:#fff;padding:5px}
.links{border-top:1px solid #24364d;padding:14px 0;font-size:13px}
.links a{margin-right:16px}
.copy{background:#0d1928;text-align:center;font-size:12px;line-height:46px}
.copy a{margin-left:10px}

/* 内页 */
.pbanner{height:240px;background:linear-gradient(120deg,rgba(7,53,100,.9),rgba(11,74,139,.65)),url(images/banner2.svg) center/cover;color:#fff;display:flex;align-items:center}
.pbanner h2{font-size:34px;letter-spacing:2px}
.pbanner p{opacity:.85}
.crumb{border-bottom:1px solid var(--line);line-height:46px;color:var(--gray);font-size:13px}
.crumb a:hover{color:var(--main)}
.inner{display:flex;gap:30px;padding:36px 0 60px}
.side{flex:0 0 260px}
.side h3{background:var(--main);color:#fff;padding:16px 20px;font-size:18px}
.side ul{border:1px solid var(--line);border-top:0}
.side li a{display:block;padding:12px 20px;border-bottom:1px solid var(--line)}
.side li a.on,.side li a:hover{background:#eef3f9;color:var(--main);border-left:3px solid var(--accent)}
.side .sct{margin-top:24px;background:var(--bg);padding:20px;font-size:13px}
.side .sct b{color:var(--accent);font-size:20px;font-family:Arial}
.main{flex:1;min-width:0}
.main .mtit{border-bottom:2px solid var(--line);margin-bottom:24px;padding-bottom:10px;font-size:20px;color:var(--main);position:relative}
.main .mtit::after{content:"";position:absolute;left:0;bottom:-2px;width:80px;height:2px;background:var(--accent)}
.main .pgrid{grid-template-columns:repeat(3,1fr)}
.article p{text-indent:2em;margin-bottom:14px;color:#444;font-size:15px}
.article h4{font-size:17px;color:var(--main);margin:24px 0 10px}
.article img{margin:16px auto}
.article table{width:100%;border-collapse:collapse;margin:16px 0}
.article th,.article td{border:1px solid var(--line);padding:8px 12px;text-align:left}
.article th{background:#eef3f9;width:30%}
.pdetail{display:flex;gap:30px;margin-bottom:30px}
.pdetail .pic{flex:0 0 46%;border:1px solid var(--line)}
.pdetail .info h1{font-size:24px;color:var(--main);margin-bottom:12px}
.pdetail .info p{color:#555;margin-bottom:10px}
.pdetail .info .btn{margin-top:14px}
.atit{text-align:center;border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:24px}
.atit h1{font-size:24px;color:var(--text)}
.atit span{color:var(--gray);font-size:13px}
.nlist li{display:flex;gap:20px;padding:20px 0;border-bottom:1px dashed var(--line)}
.nlist .pic{flex:0 0 200px;aspect-ratio:16/10;overflow:hidden}
.nlist h4{font-size:17px;margin-bottom:6px}
.nlist p{color:var(--gray);font-size:13px}
.nlist time{color:var(--accent);font-size:12px}
.prevnext{border-top:1px solid var(--line);margin-top:30px;padding-top:16px;font-size:13px;color:var(--gray)}
.form{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:20px}
.form input,.form textarea{width:100%;border:1px solid #ccc;padding:10px;font:inherit;outline:0}
.form textarea{grid-column:1/3;height:130px}
.form button{grid-column:1/3;justify-self:start;border:0;cursor:pointer;font:inherit}
.cinfo{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.cinfo div{background:var(--bg);padding:20px;border-left:3px solid var(--main)}
.cinfo b{display:block;color:var(--main);margin-bottom:4px}

/* 右侧悬浮 */
.float{position:fixed;right:10px;bottom:120px;z-index:60}
.float a{display:block;width:56px;height:56px;background:var(--main);color:#fff;text-align:center;font-size:12px;line-height:1.3;padding-top:9px;margin-bottom:2px}
.float a:hover{background:var(--accent);color:#fff}
.float a i{display:block;font-style:normal;font-size:18px}

/* 手机端 */
@media (max-width:900px){
  .topbar,.slogan,.searchbar .hot{display:none}
  .header .w{height:70px}
  .logo-mark{width:44px;height:44px;font-size:22px}
  .logo-txt b{font-size:20px}
  .hotline small,.hotline i{display:none}
  .hotline strong{font-size:16px}
  .nav-toggle{display:block;color:#fff;line-height:48px;font-size:16px;cursor:pointer}
  .nav ul.menu{display:none;flex-direction:column}
  .nav ul.menu.open{display:flex}
  .nav .menu>li{text-align:left}
  .nav .menu>li>a{line-height:44px;border-top:1px solid rgba(255,255,255,.1)}
  .nav .sub{display:none!important}
  .banner{height:240px}
  .banner .cap h2{font-size:24px}
  .banner .cap p{font-size:14px;margin:6px 0 14px}
  .searchbar input{width:100%}.searchbar form{flex:1}
  .sec{padding:36px 0}
  .tit h3{font-size:22px}
  .pgrid,.main .pgrid{grid-template-columns:repeat(2,1fr);gap:12px}
  .about,.news,.pdetail,.inner,.footer .cols{flex-direction:column}
  .about .pic,.news .hot,.side{flex:auto}
  .adv{grid-template-columns:repeat(2,1fr);gap:12px}
  .cases{grid-template-columns:1fr}
  .nums b{font-size:22px}
  .pbanner{height:150px}.pbanner h2{font-size:24px}
  .nlist .pic{flex:0 0 120px}
  .form,.cinfo{grid-template-columns:1fr}
  .form textarea,.form button{grid-column:auto}
  .float{display:none}
}
/* 公司Logo */
.logo-img{height:78px;width:auto}
.logo-txt b{font-size:22px;letter-spacing:1px}
@media (max-width:900px){.logo-img{height:52px}.logo-txt b{font-size:16px}.logo-txt span{display:none}}
@media (max-width:600px){.logo-txt{display:none}.hotline strong{font-size:17px;white-space:nowrap}}