:root{--c1:#0d4a59;--c2:#14677a;--c3:#2aa198;--acc:#c8923c;--ink:#1b2930;--mut:#5d7079;--line:#dde5e8;--bg:#f3f7f8;--w:1200px}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB","Source Han Sans SC",sans-serif;color:var(--ink);background:#fff;line-height:1.75;font-size:15px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
input,button{font-family:inherit}
.ptq-wrap{max-width:var(--w);margin:0 auto;padding:0 18px}
.ptq-top{background:#082f39;color:#bcd6dc;font-size:13px}
.ptq-top .ptq-wrap{display:flex;justify-content:space-between;align-items:center;height:36px;gap:18px}
.ptq-top span{white-space:nowrap}
.ptq-top b{color:#fff;font-weight:600}
.ptq-top em{font-style:normal;color:#8fbac4}
.ptq-hd{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:60;box-shadow:0 2px 10px rgba(13,74,89,.06)}
.ptq-hd .ptq-wrap{display:flex;align-items:center;gap:26px;height:80px}
.ptq-logo{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.ptq-logo img{width:50px;height:50px}
.ptq-logo .ptq-nm{font-size:17px;font-weight:700;line-height:1.25;letter-spacing:.5px}
.ptq-logo .ptq-en{font-size:11px;color:var(--mut);letter-spacing:1.4px;text-transform:uppercase}
.ptq-menu{margin-left:auto}
.ptq-menu li{position:relative;display:inline-block}
.ptq-menu a.ptq-lk{display:block;padding:0 15px;line-height:80px;font-size:15px;color:#25373f;transition:.2s}
.ptq-menu a.ptq-lk:hover,.ptq-menu a.ptq-on{color:var(--c3)}
.ptq-menu a.ptq-on{box-shadow:inset 0 -3px 0 var(--c3)}
.ptq-sub{position:absolute;left:-10px;top:80px;width:400px;background:#fff;border:1px solid var(--line);box-shadow:0 14px 30px rgba(10,50,60,.13);padding:12px;display:none;grid-template-columns:1fr 1fr;gap:2px;z-index:70}
.ptq-menu li:hover .ptq-sub{display:grid}
.ptq-sub a{display:block;padding:9px 12px;font-size:13px;color:#31454d;border-radius:2px}
.ptq-sub a:hover{background:var(--bg);color:var(--c1)}
.ptq-tel{flex:0 0 auto;text-align:right;border-left:1px solid var(--line);padding-left:20px}
.ptq-tel small{display:block;font-size:11px;color:var(--mut);letter-spacing:1px}
.ptq-tel b{font-size:20px;color:var(--c1);letter-spacing:.5px}
.ptq-mbtn{display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;margin-left:auto;cursor:pointer;position:relative}
.ptq-mbtn i{position:absolute;left:11px;width:18px;height:2px;background:var(--c1)}
.ptq-mbtn i:nth-child(1){top:13px}.ptq-mbtn i:nth-child(2){top:20px}.ptq-mbtn i:nth-child(3){top:27px}
.ptq-hero{position:relative;height:530px;overflow:hidden;background:#082f39}
.ptq-slide{position:absolute;inset:0;opacity:0;transition:opacity .9s ease}
.ptq-slide.ptq-on{opacity:1}
.ptq-slide img{width:100%;height:100%;object-fit:cover}
.ptq-slide:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,40,50,.9) 0%,rgba(6,40,50,.55) 48%,rgba(6,40,50,.12) 100%)}
.ptq-hero-in{position:relative;z-index:5;height:100%;display:flex;flex-direction:column;justify-content:center;color:#fff;max-width:var(--w);margin:0 auto;padding:0 18px}
.ptq-hero-in h1{font-size:40px;line-height:1.32;letter-spacing:1px;font-weight:700;max-width:620px}
.ptq-hero-in p{margin-top:18px;font-size:16px;color:#d5e5e9;max-width:560px}
.ptq-hero-tags{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px}
.ptq-hero-tags span{font-size:13px;color:#eaf5f7;border:1px solid rgba(255,255,255,.35);padding:5px 13px}
.ptq-hero-btn{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap}
.ptq-btn{display:inline-block;padding:12px 28px;background:var(--acc);color:#fff;font-size:15px;letter-spacing:1px;transition:.2s}
.ptq-btn:hover{background:#b47f2c}
.ptq-btn--o{display:inline-block;padding:12px 28px;border:1px solid rgba(255,255,255,.55);color:#fff;font-size:15px;letter-spacing:1px}
.ptq-btn--o:hover{background:rgba(255,255,255,.12)}
.ptq-dots{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);display:flex;gap:9px;z-index:6}
.ptq-dots button{width:26px;height:3px;border:0;background:rgba(255,255,255,.4);cursor:pointer}
.ptq-dots button.ptq-on{background:var(--acc)}
.ptq-sec{padding:74px 0}
.ptq-sec--bg{background:var(--bg)}
.ptq-shd{text-align:center;margin-bottom:44px}
.ptq-shd .ptq-lab{font-size:12px;letter-spacing:4px;color:var(--c3);text-transform:uppercase}
.ptq-shd h2{font-size:28px;letter-spacing:1px;margin-top:8px}
.ptq-shd .ptq-ln{width:46px;height:2px;background:var(--acc);margin:14px auto 0}
.ptq-shd p{margin-top:12px;color:var(--mut);font-size:14px}
.ptq-svc{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.ptq-card{background:#fff;border:1px solid var(--line);transition:.25s;display:flex;flex-direction:column}
.ptq-card:hover{transform:translateY(-4px);box-shadow:0 14px 28px rgba(13,74,89,.12);border-color:#c3d8dd}
.ptq-card .ptq-pic{overflow:hidden;aspect-ratio:4/3;background:#e8eff1}
.ptq-card .ptq-pic img{width:100%;height:100%;object-fit:cover;transition:.5s}
.ptq-card:hover .ptq-pic img{transform:scale(1.05)}
.ptq-card .ptq-bd{padding:17px 18px 20px;flex:1;display:flex;flex-direction:column}
.ptq-card h3{font-size:16px;font-weight:700;letter-spacing:.4px}
.ptq-card p{font-size:13px;color:var(--mut);margin-top:8px;flex:1}
.ptq-card .ptq-more{margin-top:12px;font-size:12px;color:var(--c3);letter-spacing:1px}
.ptq-stats{background:var(--c1);color:#fff;padding:44px 0}
.ptq-stats .ptq-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;text-align:center}
.ptq-stats b{display:block;font-size:32px;color:#7fd0c8;letter-spacing:1px;line-height:1.2}
.ptq-stats span{font-size:13px;color:#c6dde2}
.ptq-ab{display:grid;grid-template-columns:1.02fr 1fr;gap:52px;align-items:center}
.ptq-abpic{position:relative;padding-bottom:56px}
.ptq-abpic img{width:100%;height:auto;box-shadow:0 18px 36px rgba(13,74,89,.14)}
.ptq-abpic .ptq-img2{position:absolute;right:-18px;bottom:0;width:46%;border:6px solid #fff;box-shadow:0 10px 24px rgba(13,74,89,.16)}
.ptq-abtxt h2{font-size:27px;letter-spacing:.6px;line-height:1.4}
.ptq-abtxt .ptq-lab{font-size:12px;letter-spacing:4px;color:var(--c3);text-transform:uppercase}
.ptq-abtxt p{color:#3d525b;margin-top:15px;font-size:14.5px}
.ptq-num{margin-top:22px;display:grid;gap:12px}
.ptq-num li{display:flex;gap:12px;font-size:14px;color:#33474f}
.ptq-num li b{flex:0 0 26px;height:26px;background:var(--bg);color:var(--c1);font-size:12px;text-align:center;line-height:26px;border:1px solid var(--line)}
.ptq-adv{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.ptq-adv li{border-left:2px solid var(--line);padding:4px 0 4px 18px}
.ptq-adv li:hover{border-left-color:var(--acc)}
.ptq-adv b{display:block;font-size:13px;color:var(--c3);letter-spacing:2px}
.ptq-adv h3{font-size:17px;margin:7px 0 8px}
.ptq-adv p{font-size:13.5px;color:var(--mut)}
.ptq-flow{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.ptq-flow li{background:#fff;border:1px solid var(--line);padding:22px 18px 24px;position:relative}
.ptq-flow b{font-size:26px;color:#cfe0e4;font-weight:400;line-height:1}
.ptq-flow h3{font-size:15px;margin:10px 0 6px}
.ptq-flow p{font-size:13px;color:var(--mut)}
.ptq-cases{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.ptq-case{position:relative;overflow:hidden;background:#082f39}
.ptq-case img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:.6s;opacity:.96}
.ptq-case:hover img{transform:scale(1.06);opacity:1}
.ptq-case .ptq-ct{position:absolute;left:0;right:0;bottom:0;padding:26px 18px 16px;color:#fff;background:linear-gradient(transparent,rgba(6,40,50,.9))}
.ptq-case .ptq-tag{display:inline-block;font-size:11px;background:var(--acc);padding:2px 8px;margin-bottom:8px;letter-spacing:1px}
.ptq-case h3{font-size:15px;letter-spacing:.4px}
.ptq-qual{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.ptq-qual li{border:1px solid var(--line);background:#fff;padding:20px 22px;display:flex;gap:14px}
.ptq-qual b{flex:0 0 42px;height:42px;border:1px solid #cfe0e4;color:var(--c2);font-size:13px;text-align:center;line-height:40px;letter-spacing:0}
.ptq-qual h3{font-size:15px;margin-bottom:5px}
.ptq-qual p{font-size:13px;color:var(--mut)}
.ptq-news{display:grid;grid-template-columns:1fr 330px;gap:38px}
.ptq-nlist li{display:flex;gap:16px;padding:16px 0;border-bottom:1px dashed var(--line)}
.ptq-nlist li:first-child{padding-top:0}
.ptq-nlist img{width:132px;height:84px;object-fit:cover;flex:0 0 132px}
.ptq-nlist h3{font-size:15px;line-height:1.5}
.ptq-nlist h3:hover{color:var(--c3)}
.ptq-nlist .ptq-dt{font-size:12px;color:#8fa1a8;margin-top:5px;letter-spacing:.5px}
.ptq-nlist p{font-size:13px;color:var(--mut);margin-top:5px}
.ptq-side{background:var(--bg);padding:24px;border-top:3px solid var(--c3)}
.ptq-side h3{font-size:17px;margin-bottom:12px}
.ptq-side p{font-size:13px;color:var(--mut);margin-bottom:8px}
.ptq-side .ptq-tel2{font-size:24px;color:var(--c1);font-weight:700;letter-spacing:.5px}
.ptq-side .ptq-hot{margin-top:22px;border-top:1px solid var(--line);padding-top:16px}
.ptq-side .ptq-hot a{display:block;font-size:13px;padding:6px 0;color:#3a4f57;border-bottom:1px dashed #e4ebed}
.ptq-side .ptq-hot a:hover{color:var(--c3)}
.ptq-area{margin-top:34px;display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.ptq-area span{border:1px solid var(--line);background:#fff;padding:8px 18px;font-size:13.5px;color:#3a4f57}
.ptq-area span:hover{border-color:var(--c3);color:var(--c1)}
.ptq-ft{background:#072c35;color:#a9c4ca;padding:56px 0 0;font-size:13.5px}
.ptq-ft .ptq-cols{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px}
.ptq-ft h3{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.5px}
.ptq-ft p{line-height:1.9}
.ptq-ft a:hover{color:#7fd0c8}
.ptq-ft .ptq-fl{display:grid;gap:9px}
.ptq-ft .ptq-ct b{color:#fff}
.ptq-ft .ptq-bottom{border-top:1px solid rgba(255,255,255,.1);padding:16px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:#7f9ba2}
.ptq-phero{position:relative;height:250px;background:#082f39;display:flex;align-items:center;overflow:hidden}
.ptq-phero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5}
.ptq-phero:after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(6,40,50,.94) 0%,rgba(6,40,50,.66) 52%,rgba(6,40,50,.34) 100%)}
.ptq-phero .ptq-wrap{position:relative;z-index:4;color:#fff;width:100%}
.ptq-phero h1{font-size:30px;letter-spacing:1px;max-width:760px;line-height:1.4}
.ptq-crumb{margin-top:12px;font-size:13px;color:#bcd6dc}
.ptq-crumb a{color:#bcd6dc}.ptq-crumb a:hover{color:#fff}
.ptq-dt2{display:grid;grid-template-columns:1fr 318px;gap:42px;align-items:start}
.ptq-art p{font-size:15px;color:#31454d;margin:14px 0}
.ptq-art h2{font-size:20px;margin:30px 0 6px;padding-left:12px;border-left:3px solid var(--c3)}
.ptq-art h3{font-size:16px;margin:20px 0 6px;color:var(--c1)}
.ptq-art ul{margin:12px 0 0}
.ptq-art ul li{font-size:14.5px;color:#31454d;padding:5px 0 5px 16px;position:relative}
.ptq-art ul li:before{content:"";position:absolute;left:0;top:14px;width:6px;height:6px;border:1px solid var(--c3)}
.ptq-spec{width:100%;border-collapse:collapse;margin:16px 0 8px;font-size:14px}
.ptq-spec th,.ptq-spec td{border:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top;color:#31454d}
.ptq-spec th{width:132px;background:var(--bg);font-weight:600;color:var(--c1)}
.ptq-note{background:#fbf6ec;border-left:3px solid var(--acc);padding:14px 18px;margin:16px 0;font-size:14px;color:#6a5329}
.ptq-pcard{background:#fff;border:1px solid var(--line);padding:22px;margin-bottom:20px}
.ptq-pcard h3{font-size:16px;margin-bottom:10px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.ptq-pcard .ptq-tel3{font-size:23px;color:var(--c1);font-weight:700}
.ptq-pcard p{font-size:13px;color:var(--mut);margin:8px 0}
.ptq-plist a{display:block;font-size:13.5px;padding:9px 0;border-bottom:1px dashed #e4ebed;color:#3a4f57}
.ptq-plist a:hover{color:var(--c3)}
.ptq-cta{background:var(--c1);color:#fff;padding:46px 0}
.ptq-cta .ptq-wrap{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.ptq-cta h2{font-size:24px;letter-spacing:.5px}
.ptq-cta p{font-size:14px;color:#c6dde2;margin-top:6px}
.ptq-tagrow{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.ptq-tagrow span{font-size:12.5px;padding:5px 14px;border:1px solid var(--line);color:#4a5f68;background:#fff}
.ptq-tagrow span.ptq-on{background:var(--c3);border-color:var(--c3);color:#fff}
.ptq-newsgrid{display:grid;gap:0}
.ptq-newsgrid .ptq-ni{display:grid;grid-template-columns:180px 1fr;gap:20px;padding:20px 0;border-bottom:1px dashed var(--line)}
.ptq-newsgrid img{width:180px;height:112px;object-fit:cover}
.ptq-newsgrid h3{font-size:17px}
.ptq-newsgrid h3:hover{color:var(--c3)}
.ptq-newsgrid .ptq-dt{font-size:12px;color:#8fa1a8;margin:4px 0 6px}
.ptq-newsgrid p{font-size:13.5px;color:var(--mut)}
.ptq-navpg{display:flex;gap:8px;justify-content:center;margin-top:34px}
.ptq-navpg a,.ptq-navpg span{min-width:38px;height:38px;line-height:36px;text-align:center;border:1px solid var(--line);font-size:13px;color:#4a5f68;padding:0 12px}
.ptq-navpg span{background:var(--c3);border-color:var(--c3);color:#fff}
.ptq-rel{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:12px}
.ptq-rel a{border:1px solid var(--line);padding:16px;font-size:14px;color:#31454d}
.ptq-rel a:hover{border-color:var(--c3);color:var(--c1)}
.ptq-rel small{display:block;color:#8fa1a8;font-size:12px;margin-bottom:6px}
.ptq-info{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:40px}
.ptq-info li{border:1px solid var(--line);padding:24px 22px;background:#fff}
.ptq-info b{display:block;font-size:12px;letter-spacing:3px;color:var(--c3);text-transform:uppercase}
.ptq-info h3{font-size:19px;margin:10px 0 6px;color:var(--c1)}
.ptq-info p{font-size:13px;color:var(--mut)}
.ptq-404{padding:110px 0;text-align:center}
.ptq-404 b{font-size:96px;color:#d8e4e7;letter-spacing:6px;line-height:1}
.ptq-404 h1{font-size:24px;margin:8px 0 12px}
.ptq-404 p{color:var(--mut);font-size:14px}
.ptq-404 .ptq-lks{margin-top:26px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.ptq-404 .ptq-lks a{padding:10px 20px;border:1px solid var(--line);font-size:13.5px;color:#3a4f57}
.ptq-404 .ptq-lks a:hover{border-color:var(--c3);color:var(--c1)}
@media(max-width:1080px){
.ptq-svc{grid-template-columns:repeat(2,1fr)}
.ptq-stats .ptq-grid{grid-template-columns:repeat(2,1fr);row-gap:26px}
.ptq-ab{grid-template-columns:1fr;gap:34px}
.ptq-abpic .ptq-img2{position:static;width:100%;margin-top:12px;border:0}
.ptq-adv{grid-template-columns:repeat(2,1fr)}
.ptq-flow{grid-template-columns:repeat(2,1fr)}
.ptq-cases{grid-template-columns:repeat(2,1fr)}
.ptq-news{grid-template-columns:1fr}
.ptq-dt2{grid-template-columns:1fr}
.ptq-info{grid-template-columns:1fr}
.ptq-rel{grid-template-columns:1fr}
.ptq-ft .ptq-cols{grid-template-columns:1fr 1fr}
.ptq-hero-in h1{font-size:32px}
}
@media(max-width:820px){
.ptq-top .ptq-wrap{height:auto;padding:8px 0;flex-direction:column;align-items:flex-start;gap:2px;font-size:12px}
.ptq-top .ptq-wrap span:nth-child(2){display:none}
.ptq-hd .ptq-wrap{height:66px;gap:10px}
.ptq-logo img{width:42px;height:42px}
.ptq-logo .ptq-nm{font-size:15px}
.ptq-logo .ptq-en{display:none}
.ptq-tel{display:none}
.ptq-menu{display:none;position:absolute;left:0;right:0;top:66px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 12px 24px rgba(10,50,60,.1);padding:8px 18px 14px}
.ptq-menu.ptq-open{display:block}
.ptq-menu li{display:block}
.ptq-menu a.ptq-lk{line-height:44px;padding:0;border-bottom:1px solid #eef3f4}
.ptq-sub{position:static;width:auto;display:grid;box-shadow:none;border:0;padding:4px 0 8px 12px;background:#f8fbfb}
.ptq-menu li:hover .ptq-sub{display:grid}
.ptq-mbtn{display:block}
.ptq-hero{height:430px}
.ptq-hero-in h1{font-size:24px;line-height:1.45}
.ptq-hero-in p{font-size:13.5px;margin-top:12px}
.ptq-hero-tags{display:none}
.ptq-hero-btn{margin-top:22px}
.ptq-btn,.ptq-btn--o{padding:10px 20px;font-size:13.5px}
.ptq-sec{padding:46px 0}
.ptq-shd h2{font-size:22px}
.ptq-svc{grid-template-columns:1fr 1fr;gap:12px}
.ptq-card .ptq-bd{padding:12px 12px 14px}
.ptq-card h3{font-size:14px}
.ptq-card p{font-size:12px;display:none}
.ptq-adv{grid-template-columns:1fr}
.ptq-flow{grid-template-columns:1fr}
.ptq-cases{grid-template-columns:1fr}
.ptq-qual{grid-template-columns:1fr}
.ptq-phero{height:190px}
.ptq-phero h1{font-size:21px}
.ptq-newsgrid .ptq-ni{grid-template-columns:110px 1fr;gap:12px}
.ptq-newsgrid img{width:110px;height:74px}
.ptq-newsgrid h3{font-size:14.5px}
.ptq-nlist img{width:104px;height:68px;flex:0 0 104px}
.ptq-nlist h3{font-size:14px}
.ptq-ft .ptq-cols{grid-template-columns:1fr;gap:26px}
.ptq-cta{padding:34px 0}
.ptq-cta h2{font-size:19px}
.ptq-404 b{font-size:64px}
.ptq-spec th{width:96px;padding:9px 10px;font-size:12.5px}
.ptq-spec td{padding:9px 10px;font-size:13px}
.ptq-art p{font-size:14px}
.ptq-art h2{font-size:18px}
.ptq-info h3{font-size:17px}
}