:root{--dk:#0b3c5d;--dk2:#082c46;--cy:#1fa2c9;--cy2:#4cc3e2;--ink:#1d2b36;--gray:#5b6b78;--line:#e2e8ee;--bg:#f4f7fa;--w:#fff}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--w);line-height:1.75;font-size:15px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;border:0;max-width:100%}
ul{list-style:none}
.wrap{width:1200px;max-width:92%;margin:0 auto}
.nwv-top{background:var(--dk2);color:#c8d8e4;font-size:13px;line-height:38px}
.nwv-top .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:6px}
.nwv-top span{margin-right:22px}
.nwv-top b{color:#fff;font-weight:400}
.nwv-head{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:60;box-shadow:0 2px 14px rgba(11,60,93,.06)}
.nwv-head .wrap{display:flex;align-items:center;justify-content:space-between;height:76px;gap:20px}
.nwv-brand{display:flex;align-items:center;gap:12px}
.nwv-brand img{height:44px;width:auto}
.nwv-brand-txt strong{display:block;font-size:19px;letter-spacing:1px;color:var(--dk);line-height:1.3}
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.nwv-menu a{padding:0 15px;line-height:76px;font-size:15px;color:#33475a;position:relative;transition:.2s}
.nwv-menu a:hover{color:var(--cy)}
.nwv-menu a.on{color:var(--dk);font-weight:700}
.nwv-menu a.on:after{content:"";position:absolute;left:15px;right:15px;bottom:22px;height:2px;background:var(--cy)}
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.nwv-burger span{position:absolute;left:11px;width:22px;height:2px;background:var(--dk)}
.nwv-burger span:nth-child(1){top:14px}.nwv-burger span:nth-child(2){top:21px}.nwv-burger span:nth-child(3){top:28px}
.nwv-hero{position:relative;height:560px;overflow:hidden;background:var(--dk2)}
.nwv-hero .slide{position:absolute;inset:0;opacity:0;transition:opacity .9s ease}
.nwv-hero .slide.on{opacity:1}
.nwv-hero .slide img{width:100%;height:100%;object-fit:cover}
.nwv-hero .mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,44,70,.92) 0%,rgba(8,44,70,.72) 46%,rgba(8,44,70,.24) 100%)}
.nwv-hero .inner{position:relative;height:100%;display:flex;flex-direction:column;justify-content:center;color:#fff;max-width:1200px;width:92%;margin:0 auto;padding-bottom:56px}
.nwv-hero .kick{font-size:13px;letter-spacing:4px;color:var(--cy2);margin-bottom:18px}
.nwv-hero h1{font-size:46px;line-height:1.32;letter-spacing:1px;max-width:720px;font-weight:700}
.nwv-hero p{margin-top:18px;max-width:620px;color:#cfe1ee;font-size:16px;line-height:1.9}
.nwv-hero .acts{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap}
.nwv-btn{display:inline-block;padding:13px 30px;border-radius:3px;font-size:15px;transition:.25s;border:1px solid transparent}
.nwv-btn--p{background:var(--cy);color:#fff}
.nwv-btn--p:hover{background:#1785a8}
.nwv-btn--g{border-color:rgba(255,255,255,.6);color:#fff}
.nwv-btn--g:hover{background:rgba(255,255,255,.14)}
.nwv-btn--d{border:1px solid var(--dk);color:var(--dk)}
.nwv-btn--d:hover{background:var(--dk);color:#fff}
.nwv-dots{position:absolute;left:0;right:0;bottom:26px;display:flex;justify-content:center;gap:9px;z-index:5}
.nwv-dots b{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.45);cursor:pointer;display:block}
.nwv-dots b.on{background:var(--cy);width:26px;border-radius:6px}
.nwv-quick{position:relative;margin-top:-56px;z-index:10}
.nwv-quick ul{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;box-shadow:0 12px 34px rgba(11,60,93,.13);border-radius:4px;overflow:hidden}
.nwv-quick li{padding:26px 24px;border-right:1px solid var(--line);transition:.25s}
.nwv-quick li:last-child{border-right:0}
.nwv-quick li:hover{background:var(--dk);color:#fff}
.nwv-quick h4{font-size:16px;margin-bottom:6px}
.nwv-quick p{font-size:13px;color:var(--gray);line-height:1.7}
.nwv-quick li:hover p{color:#cfe1ee}
.nwv-sec{padding:74px 0}
.nwv-sec--bg{background:var(--bg)}
.nwv-hd{text-align:center;margin-bottom:44px}
.nwv-hd em{font-style:normal;color:var(--cy);letter-spacing:3px;font-size:12px;text-transform:uppercase}
.nwv-hd h2{font-size:32px;color:var(--dk);margin-top:10px;letter-spacing:1px}
.nwv-hd p{color:var(--gray);margin-top:12px;font-size:15px}
.nwv-hd--l{text-align:left;margin-bottom:30px}
.nwv-svc{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.nwv-card{background:#fff;border:1px solid var(--line);border-radius:4px;overflow:hidden;transition:.28s;display:flex;flex-direction:column}
.nwv-card:hover{box-shadow:0 14px 34px rgba(11,60,93,.12);transform:translateY(-3px)}
.nwv-card .ph{height:168px;overflow:hidden}
.nwv-card .ph img{width:100%;height:100%;object-fit:cover;transition:.5s}
.nwv-card:hover .ph img{transform:scale(1.06)}
.nwv-card .bd{padding:22px 22px 24px;flex:1;display:flex;flex-direction:column}
.nwv-card h3{font-size:17px;color:var(--dk);margin-bottom:8px}
.nwv-card p{font-size:13.5px;color:var(--gray);line-height:1.85;flex:1}
.nwv-more{margin-top:14px;font-size:13px;color:var(--cy);letter-spacing:.5px}
.nwv-adv{display:grid;grid-template-columns:520px 1fr;gap:54px;align-items:center}
.nwv-adv .pic{border-radius:4px;overflow:hidden;box-shadow:0 18px 40px rgba(11,60,93,.16)}
.nwv-adv .pic img{width:100%;height:420px;object-fit:cover}
.nwv-adv li{display:flex;gap:20px;padding:20px 0;border-bottom:1px dashed var(--line)}
.nwv-adv li:last-child{border-bottom:0}
.nwv-adv .num{font-size:26px;color:var(--cy);font-weight:700;min-width:88px;letter-spacing:1px}
.nwv-adv h4{font-size:16px;color:var(--dk);margin-bottom:5px}
.nwv-adv p{font-size:13.5px;color:var(--gray)}
.nwv-sol{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.nwv-sol div{background:#fff;border-left:3px solid var(--cy);padding:24px 24px 26px;transition:.25s}
.nwv-sol div:hover{background:var(--dk);color:#fff;border-left-color:var(--cy2)}
.nwv-sol h4{font-size:16px;color:var(--dk);margin-bottom:8px}
.nwv-sol div:hover h4{color:#fff}
.nwv-sol p{font-size:13.5px;color:var(--gray)}
.nwv-sol div:hover p{color:#cfe1ee}
.nwv-flow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;background:#fff;border:1px solid var(--line)}
.nwv-flow div{padding:30px 24px;border-right:1px solid var(--line);position:relative}
.nwv-flow div:last-child{border-right:0}
.nwv-flow .idx{font-size:30px;color:#dbe6ee;font-weight:700;line-height:1}
.nwv-flow h4{font-size:15px;color:var(--dk);margin:12px 0 8px}
.nwv-flow p{font-size:13px;color:var(--gray);line-height:1.8}
.nwv-case{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.nwv-case a{display:block;position:relative;overflow:hidden;border-radius:4px;background:#000}
.nwv-case img{width:100%;height:220px;object-fit:cover;opacity:.92;transition:.4s}
.nwv-case a:hover img{transform:scale(1.05);opacity:1}
.nwv-case .tag{position:absolute;left:0;right:0;bottom:0;padding:16px 18px;background:linear-gradient(transparent,rgba(8,44,70,.88));color:#fff}
.nwv-case .tag strong{display:block;font-size:14.5px;font-weight:600}
.nwv-case .tag span{font-size:12px;color:#bfd4e3}
.nwv-stats{background:var(--dk);color:#fff;padding:54px 0}
.nwv-stats ul{display:grid;grid-template-columns:repeat(4,1fr);text-align:center}
.nwv-stats li b{display:block;font-size:38px;color:var(--cy2);letter-spacing:1px;line-height:1.2}
.nwv-stats li span{font-size:14px;color:#c9dbea}
.nwv-news{display:grid;grid-template-columns:1fr 330px;gap:46px;align-items:start}
.nwv-news .list a.it{display:grid;grid-template-columns:190px 1fr;gap:22px;padding:20px 0;border-bottom:1px solid var(--line);transition:.2s}
.nwv-news .list a.it:hover{background:#fafcfd}
.nwv-news .list a.it img{width:190px;height:120px;object-fit:cover}
.nwv-news .list a.it h4{font-size:16px;color:var(--dk);line-height:1.6}
.nwv-news .list a.it p{font-size:13px;color:var(--gray);margin-top:8px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.nwv-news .list a.it i{font-style:normal;font-size:12px;color:#9aa9b6;display:block;margin-top:10px}
.nwv-side{background:var(--bg);padding:28px}
.nwv-side h4{font-size:17px;color:var(--dk);padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:16px}
.nwv-side ul li{padding:11px 0;border-bottom:1px dashed #e6edf3;font-size:13.5px}
.nwv-side ul li a{display:flex;justify-content:space-between;gap:12px;color:#3d5062}
.nwv-side ul li a:hover{color:var(--cy)}
.nwv-side ul li a span{flex:1 1 auto;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.nwv-side ul li a i{font-style:normal;flex:0 0 auto;color:#9aa9b6;font-size:12px;white-space:nowrap}
.nwv-side+.nwv-side{margin-top:22px}
.nwv-about{display:grid;grid-template-columns:1fr 540px;gap:54px;align-items:center}
.nwv-about h2{font-size:30px;color:var(--dk);line-height:1.4;margin-bottom:18px}
.nwv-about p{color:var(--gray);margin-bottom:14px;font-size:14.5px}
.nwv-about .pic img{width:100%;height:390px;object-fit:cover;border-radius:4px}
.nwv-about .mini{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px}
.nwv-about .mini div{border-top:2px solid var(--cy);padding-top:12px}
.nwv-about .mini b{display:block;font-size:22px;color:var(--dk)}
.nwv-about .mini span{font-size:12.5px;color:var(--gray)}
.nwv-cta{background:linear-gradient(120deg,#082c46,#12547c);color:#fff;padding:52px 0}
.nwv-cta .wrap{display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.nwv-cta h3{font-size:26px;letter-spacing:.5px}
.nwv-cta p{color:#cbe0ee;margin-top:8px;font-size:14px}
.nwv-foot{background:#06202f;color:#9fb6c6;padding:56px 0 0;font-size:13.5px}
.nwv-foot>.wrap>ul{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.nwv-foot li>ul{display:block}
.nwv-foot h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:1px}
.nwv-foot li{margin-bottom:9px}
.nwv-foot a:hover{color:var(--cy2)}
.nwv-foot .about-txt{color:#8aa4b6;line-height:1.9;padding-right:20px}
.nwv-foot .tel{color:#fff;font-size:20px;letter-spacing:.5px;margin:6px 0}
.nwv-copy{margin-top:44px;border-top:1px solid #123a52;padding:18px 0;text-align:center;color:#7b95a7;font-size:12.5px}
.nwv-pb{background:var(--dk);color:#fff;padding:74px 0 58px;position:relative;overflow:hidden}
.nwv-pb img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.34}
.nwv-pb .wrap{position:relative}
.nwv-pb h1{font-size:34px;letter-spacing:1px}
.nwv-pb p{color:#c6dbea;margin-top:10px;font-size:14px}
.nwv-crumb{font-size:12.5px;color:#8aa4b6;padding:16px 0;border-bottom:1px solid var(--line);background:#fafcfd}
.nwv-crumb a:hover{color:var(--cy)}
.nwv-main{padding:56px 0 76px}
.nwv-main--2{display:grid;grid-template-columns:1fr 320px;gap:46px;align-items:start}
.nwv-prod-top{display:grid;grid-template-columns:560px 1fr;gap:44px;align-items:start;margin-bottom:46px}
.nwv-prod-top img{width:100%;height:360px;object-fit:cover;border-radius:4px}
.nwv-prod-top h2{font-size:26px;color:var(--dk);margin-bottom:14px}
.nwv-prod-top p{color:var(--gray);font-size:14.5px}
.nwv-prod-top .kv{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:22px}
.nwv-prod-top .kv div{background:var(--bg);padding:12px 14px}
.nwv-prod-top .kv b{display:block;font-size:13px;color:var(--dk)}
.nwv-prod-top .kv span{font-size:12px;color:#7b8d9c}
.nwv-art h3{font-size:19px;color:var(--dk);margin:34px 0 14px;padding-left:12px;border-left:3px solid var(--cy)}
.nwv-art p{color:#37485a;margin-bottom:12px;font-size:14.5px;line-height:1.95}
.nwv-tb{width:100%;border-collapse:collapse;font-size:13.5px;margin:10px 0 6px}
.nwv-tb th,.nwv-tb td{border:1px solid var(--line);padding:11px 13px;text-align:left;vertical-align:top}
.nwv-tb th{background:var(--dk);color:#fff;font-weight:400;white-space:nowrap}
.nwv-tb tr:nth-child(even) td{background:#fbfdfe}
.nwv-tb td:first-child{color:var(--dk);white-space:nowrap}
.nwv-grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:6px}
.nwv-grid2 div{border:1px solid var(--line);padding:18px 20px}
.nwv-grid2 b{display:block;color:var(--dk);font-size:14.5px;margin-bottom:6px}
.nwv-grid2 p{font-size:13px;color:var(--gray);margin:0}
.nwv-faq{margin-top:8px}
.nwv-faq div{border-bottom:1px dashed var(--line);padding:16px 0}
.nwv-faq b{display:block;color:var(--dk);font-size:14.5px;margin-bottom:6px}
.nwv-faq p{font-size:13.5px;color:var(--gray);margin:0}
.nwv-list-news{display:grid;grid-template-columns:1fr 320px;gap:44px;align-items:start}
.nwv-list-news .item{display:grid;grid-template-columns:230px 1fr;gap:24px;padding:26px 0;border-bottom:1px solid var(--line)}
.nwv-list-news .item img{width:230px;height:148px;object-fit:cover}
.nwv-list-news .item h3{font-size:18px;color:var(--dk);line-height:1.55}
.nwv-list-news .item p{font-size:13.5px;color:var(--gray);margin-top:9px;line-height:1.85}
.nwv-list-news .item i{font-style:normal;font-size:12px;color:#9aa9b6;display:block;margin-top:12px}
.nwv-tags{display:flex;gap:10px;flex-wrap:wrap;margin:6px 0 0}
.nwv-tags span{font-size:12px;border:1px solid var(--line);padding:4px 10px;color:#6b7c8b;border-radius:2px}
.nwv-tags span.cur{background:var(--dk);color:#fff;border-color:var(--dk)}
.nwv-page{display:flex;gap:8px;justify-content:center;margin-top:36px}
.nwv-page a,.nwv-page b{min-width:36px;height:36px;line-height:34px;text-align:center;border:1px solid var(--line);font-size:13px;font-weight:400;color:#3d5062}
.nwv-page a:hover{border-color:var(--cy);color:var(--cy)}
.nwv-cases{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.nwv-cases .c{border:1px solid var(--line);background:#fff}
.nwv-cases .c img{width:100%;height:196px;object-fit:cover}
.nwv-cases .c .bd{padding:22px}
.nwv-cases .c h3{font-size:16px;color:var(--dk);margin-bottom:8px}
.nwv-cases .c p{font-size:13px;color:var(--gray);line-height:1.8;min-height:70px}
.nwv-cases .c ul{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:16px;border-top:1px dashed var(--line);padding-top:14px}
.nwv-cases .c li{text-align:center}
.nwv-cases .c li b{display:block;font-size:15px;color:var(--cy)}
.nwv-cases .c li span{font-size:11.5px;color:#93a4b2}
.nwv-contact{display:grid;grid-template-columns:1fr 480px;gap:48px;align-items:start}
.nwv-contact .info div{display:flex;gap:16px;padding:18px 0;border-bottom:1px dashed var(--line)}
.nwv-contact .info b{min-width:76px;color:var(--dk);font-size:14px}
.nwv-contact .info p{font-size:13.5px;color:var(--gray);margin:0}
.nwv-form{background:var(--bg);padding:30px}
.nwv-form h3{font-size:18px;color:var(--dk);margin-bottom:16px}
.nwv-form label{display:block;font-size:12.5px;color:#6b7c8b;margin:12px 0 6px}
.nwv-form input,.nwv-form textarea,.nwv-form select{width:100%;border:1px solid #d7e0e8;background:#fff;padding:11px 12px;font-size:13.5px;font-family:inherit;border-radius:2px}
.nwv-form textarea{height:110px;resize:vertical}
.nwv-form button{margin-top:18px;width:100%;background:var(--cy);color:#fff;border:0;padding:13px;font-size:15px;cursor:pointer;font-family:inherit}
.nwv-form button:hover{background:#1785a8}
.nwv-form small{display:block;margin-top:10px;color:#93a4b2;font-size:12px;line-height:1.7}
.nwv-404{text-align:center;padding:96px 0 110px}
.nwv-404 b{display:block;font-size:88px;color:var(--dk);line-height:1;letter-spacing:4px}
.nwv-404 h1{font-size:24px;margin:18px 0 12px;color:var(--ink)}
.nwv-404 p{color:var(--gray);font-size:14px}
.nwv-404 .acts{margin-top:28px;display:flex;gap:14px;justify-content:center}
.nwv-404 .hot{margin-top:44px;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;text-align:left}
.nwv-404 .hot a{border:1px solid var(--line);padding:16px 18px;font-size:13.5px;color:#3d5062}
.nwv-404 .hot a:hover{border-color:var(--cy);color:var(--cy)}
.nwv-up{position:fixed;right:22px;bottom:26px;width:44px;height:44px;background:var(--dk);color:#fff;border:0;cursor:pointer;font-size:18px;line-height:44px;text-align:center;opacity:0;pointer-events:none;transition:.3s;z-index:80}
.nwv-up.on{opacity:1;pointer-events:auto}
@media(max-width:1100px){.nwv-hero h1{font-size:38px}.nwv-adv{grid-template-columns:1fr;gap:30px}.nwv-adv .pic img{height:320px}.nwv-news{grid-template-columns:1fr}.nwv-about{grid-template-columns:1fr}.nwv-prod-top{grid-template-columns:1fr}.nwv-main--2,.nwv-list-news{grid-template-columns:1fr}.nwv-svc,.nwv-case{grid-template-columns:repeat(2,1fr)}.nwv-sol,.nwv-cases{grid-template-columns:repeat(2,1fr)}.nwv-flow{grid-template-columns:repeat(3,1fr)}.nwv-contact{grid-template-columns:1fr}}
@media(max-width:1100px){.nwv-news .list a.it{grid-template-columns:1fr}.nwv-news .list a.it img{width:100%;height:190px}}
@media(max-width:760px){.nwv-head .wrap{height:64px}.nwv-brand img{height:36px}.nwv-brand-txt strong{font-size:16px}.nwv-tel{display:none}.nwv-burger{display:block}.nwv-menu{position:fixed;top:64px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:8px 0;box-shadow:0 12px 24px rgba(0,0,0,.1);transform:translateY(-140%);transition:.3s;z-index:60}
.nwv-menu.open{transform:translateY(0)}
.nwv-menu a{line-height:50px;border-bottom:1px solid #f1f4f7;padding:0 22px}
.nwv-menu a.on:after{display:none}
.nwv-hero{height:auto;min-height:430px;padding:0}
.nwv-hero .slide{position:absolute;inset:0;display:none;opacity:1}
.nwv-hero .slide.on{display:block}
.nwv-hero .inner{padding:76px 0 92px}
.nwv-hero .mask{position:absolute}
.nwv-hero h1{font-size:27px;line-height:1.45}
.nwv-hero p{font-size:14px;margin-top:12px}
.nwv-hero .acts{margin-top:24px;gap:10px}
.nwv-btn{padding:11px 22px;font-size:14px}
.nwv-quick{margin-top:-40px}
.nwv-quick ul{grid-template-columns:repeat(2,1fr)}
.nwv-quick li{padding:18px 16px}
.nwv-sec{padding:48px 0}
.nwv-hd h2{font-size:24px}
.nwv-hd{margin-bottom:28px}
.nwv-svc,.nwv-case,.nwv-sol,.nwv-cases{grid-template-columns:1fr;gap:16px}
.nwv-card .ph{height:190px}
.nwv-flow{grid-template-columns:1fr}
.nwv-flow div{border-right:0;border-bottom:1px solid var(--line)}
.nwv-stats ul{grid-template-columns:repeat(2,1fr);gap:26px 0}
.nwv-stats li b{font-size:28px}
.nwv-list-news .item{grid-template-columns:1fr;gap:12px}
.nwv-news .list img,.nwv-list-news .item img{width:100%;height:190px}
.nwv-about h2{font-size:22px}
.nwv-about .pic img{height:260px}
.nwv-about .mini{grid-template-columns:1fr}
.nwv-prod-top img{height:240px}
.nwv-prod-top .kv{grid-template-columns:1fr}
.nwv-cta h3{font-size:20px}
.nwv-foot ul{grid-template-columns:1fr;gap:26px}
.nwv-pb{padding:50px 0 40px}
.nwv-pb h1{font-size:25px}
.nwv-art h3{font-size:17px}
.nwv-tb th,.nwv-tb td{padding:9px;font-size:12.5px}
.nwv-grid2{grid-template-columns:1fr}
.nwv-cases .c ul{gap:6px}
.nwv-contact{gap:26px}
.nwv-form{padding:22px}
.nwv-404 b{font-size:56px}
.nwv-404 .hot{grid-template-columns:repeat(2,1fr)}
.nwv-404{padding:64px 0 76px}
}