:root{--navy:#14334e;--blue:#17507e;--sky:#ff7a1a;--light:#f2f5f7;--ink:#1f2a33;--mut:#5c6b76;--line:#e3ebf0;--wa:1180px}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;color:var(--ink);font-size:15px;line-height:1.75;background:#fff;-webkit-text-size-adjust:100%}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--wa);margin:0 auto;padding:0 20px}
.toputil{background:var(--navy);color:#d9e6f0;font-size:12.5px}
.toputil .wrap{display:flex;justify-content:space-between;gap:16px;padding-top:6px;padding-bottom:6px}
.toputil a{color:#fff;font-weight:600}
.site-header{position:sticky;top:0;z-index:60;background:#fff;box-shadow:0 1px 0 var(--line),0 4px 18px rgba(20,51,78,.05)}
.header-in{display:flex;align-items:center;gap:26px;padding-top:13px;padding-bottom:13px}
.logo{display:flex;align-items:center;gap:11px;flex:none}
.logo-mark{width:44px;height:44px;border-radius:10px;background:linear-gradient(135deg,var(--blue),var(--sky));color:#fff;font-size:23px;font-weight:800;display:flex;align-items:center;justify-content:center}
.logo-name{font-size:19px;font-weight:800;color:var(--navy);line-height:1.25;letter-spacing:.5px}
.logo-en{font-size:10px;letter-spacing:2.5px;color:var(--mut);text-transform:uppercase}
.main-nav{display:flex;gap:4px;margin-left:auto}
.main-nav a{padding:8px 13px;border-radius:999px;font-size:15px;color:#33475a}
.main-nav a:hover{color:var(--blue);background:var(--light)}
.main-nav a.active{background:var(--blue);color:#fff;font-weight:600}
.head-tel{flex:none;text-align:right;line-height:1.3}
.head-tel small{display:block;color:var(--mut);font-size:11.5px;letter-spacing:1px}
.head-tel b{color:var(--blue);font-size:19px;letter-spacing:.5px}
.burger{display:none;margin-left:auto;background:none;border:0;font-size:24px;color:var(--navy);cursor:pointer;padding:6px}
.hero{position:relative;color:#fff;overflow:hidden;background:var(--navy)}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,38,61,.88) 30%,rgba(6,38,61,.35) 75%)}
.hero-in{position:relative;z-index:2;padding:86px 0 96px}
.hero .en{letter-spacing:4px;font-size:13px;color:#ffb37e;text-transform:uppercase;font-weight:600}
.hero h1{font-size:42px;line-height:1.3;font-weight:800;margin:14px 0 12px;max-width:640px}
.hero p{color:#e3edf5;max-width:560px;font-size:16px}
.hero-btns{margin-top:28px;display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--sky);color:#fff;padding:12px 30px;border-radius:999px;font-weight:600;font-size:15px;border:1px solid var(--sky);transition:.25s}
.btn:hover{background:var(--blue);border-color:var(--blue)}
.btn.ghost{background:transparent;border-color:rgba(255,255,255,.65);color:#fff}
.btn.ghost:hover{background:rgba(255,255,255,.12)}
.btn.dark{background:var(--navy);border-color:var(--navy)}
.searchbar{position:relative;z-index:3;margin-top:-34px}
.search-card{background:#fff;border-radius:14px;box-shadow:0 14px 34px rgba(20,51,78,.16);padding:18px 22px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.search-card .hot{font-size:13.5px;color:var(--mut)}
.search-card .hot a{color:var(--blue);margin:0 4px}
.search-card .hot a:hover{text-decoration:underline}
.search-form{margin-left:auto;display:flex;flex:none}
.search-form input{border:1px solid var(--line);border-right:0;border-radius:999px 0 0 999px;padding:10px 18px;font-size:14px;width:230px;outline:none;font-family:inherit}
.search-form button{border:0;background:var(--blue);color:#fff;padding:10px 24px;border-radius:0 999px 999px 0;font-size:14px;cursor:pointer;font-family:inherit}
.section{padding:64px 0}
.section.alt{background:var(--light)}
.sec-head{text-align:center;margin-bottom:36px}
.sec-head .en{font-size:12px;letter-spacing:4px;color:var(--sky);font-weight:700;text-transform:uppercase}
.sec-head h2{font-size:30px;color:var(--navy);font-weight:800;margin-top:6px}
.sec-head .bar{width:56px;height:3px;background:var(--sky);border-radius:2px;margin:14px auto 0}
.sec-head p{color:var(--mut);margin-top:12px;max-width:640px;margin-left:auto;margin-right:auto}
.adv{background:var(--blue);color:#fff}
.adv .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding-top:26px;padding-bottom:26px}
.adv-it{display:flex;gap:13px;align-items:flex-start;padding:0 14px}
.adv-it svg{flex:none;margin-top:3px}
.adv-it b{display:block;font-size:16.5px}
.adv-it span{font-size:13px;color:#d9e6f0;line-height:1.6;display:block}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.about-grid .ph{border-radius:14px;overflow:hidden}
.about-grid .ph img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .8s ease}
.about-grid .ph:hover img{transform:scale(1.06)}
.about-txt h3{font-size:24px;color:var(--navy);margin-bottom:12px}
.about-txt p{color:#43586a;margin-bottom:12px}
.more-link{color:var(--blue);font-weight:600}
.more-link:hover{text-decoration:underline}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pcard{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 12px rgba(20,51,78,.07);transition:.3s;display:flex;flex-direction:column}
.pcard:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(20,51,78,.13)}
.pcard .thumb{overflow:hidden;aspect-ratio:4/3;background:#f5efe8}
.pcard .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .8s ease}
.pcard:hover .thumb img{transform:scale(1.08)}
.pcard .thumb .ph-txt{height:100%;display:flex;align-items:center;justify-content:center;color:#d8a97e;font-size:30px;font-weight:800;letter-spacing:2px}
.pcard .pbody{padding:16px 18px 18px;display:flex;align-items:center;gap:10px}
.pcard .pname{font-size:16.5px;font-weight:700;color:var(--navy);line-height:1.45}
.pcard .pcat{font-size:12.5px;color:var(--sky);letter-spacing:1px}
.pcard .go{margin-left:auto;flex:none;width:34px;height:34px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--blue);font-size:17px;transition:.25s}
.pcard:hover .go{background:var(--blue);color:#fff;border-color:var(--blue)}
.center-btn{text-align:center;margin-top:36px}
.case-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.case-card{position:relative;border-radius:14px;overflow:hidden;min-height:260px;display:flex;align-items:flex-end}
.case-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .8s ease}
.case-card:hover img{transform:scale(1.06)}
.case-card .cap{position:relative;z-index:2;background:linear-gradient(transparent,rgba(6,38,61,.85));color:#fff;width:100%;padding:44px 22px 16px}
.case-card .cap b{font-size:18px}
.case-card .cap span{display:block;font-size:13.5px;color:#d9e6f0}
.ncard{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 12px rgba(20,51,78,.07);display:flex;flex-direction:column;transition:.3s}
.ncard:hover{transform:translateY(-4px)}
.ncard .thumb{aspect-ratio:16/9;overflow:hidden;background:#f5efe8}
.ncard .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .8s ease}
.ncard:hover .thumb img{transform:scale(1.07)}
.ncard .nbody{padding:18px}
.ndate{display:inline-block;background:var(--light);color:var(--blue);font-size:12.5px;padding:2px 10px;border-radius:999px;font-weight:600}
.ncard h3{font-size:16.5px;color:var(--navy);margin:10px 0 8px;line-height:1.5}
.ncard p{font-size:13.5px;color:var(--mut);line-height:1.7}
.cta-band{background:linear-gradient(90deg,var(--navy),var(--blue));color:#fff}
.cta-band .wrap{display:flex;align-items:center;gap:26px;padding-top:38px;padding-bottom:38px;flex-wrap:wrap}
.cta-band h2{font-size:25px;font-weight:800}
.cta-band p{color:#d9e6f0;font-size:14.5px}
.cta-band .btn{margin-left:auto;background:#fff;color:var(--blue);border-color:#fff;font-size:17px}
.site-footer{background:#101d29;color:#b3c3d1}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:34px;padding:52px 0 38px}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.site-footer p,.site-footer a{font-size:13.5px;line-height:2}
.site-footer a:hover{color:#fff}
.foot-logo{display:flex;gap:11px;align-items:center;margin-bottom:14px}
.copyright{border-top:1px solid rgba(255,255,255,.09);padding:16px 0;font-size:12.5px;color:#8496a6}
.copyright .wrap{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
.page-hero{background:linear-gradient(90deg,var(--navy),var(--blue));color:#fff;padding:44px 0}
.page-hero h1{font-size:30px;font-weight:800}
.page-hero .en{letter-spacing:3px;font-size:11.5px;color:#ffb37e;text-transform:uppercase}
.crumb{font-size:13px;color:#d9e6f0;margin-top:6px}
.crumb a:hover{color:#fff}
.layout{display:grid;grid-template-columns:230px 1fr;gap:30px;align-items:start}
.side-nav{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-bottom:20px}
.side-nav h3{background:var(--navy);color:#fff;font-size:16px;padding:13px 18px}
.side-nav a{display:flex;justify-content:space-between;padding:11px 18px;border-top:1px solid var(--line);font-size:14.5px}
.side-nav a:hover{color:var(--blue);background:var(--light)}
.side-nav a.active{color:var(--blue);font-weight:700;background:var(--light)}
.side-contact{background:var(--navy);color:#e3edf5;border-radius:12px;padding:20px}
.side-contact h3{color:#fff;font-size:16px;margin-bottom:8px}
.side-contact .big{font-size:21px;color:#fff;font-weight:800}
.side-contact p{font-size:13.5px;line-height:1.9}
.pd-top{display:grid;grid-template-columns:1fr 1fr;gap:34px;margin-bottom:8px}
.pd-photo{border-radius:14px;overflow:hidden;background:#f5efe8}
.pd-photo img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.supplier{background:var(--light);border-radius:14px;padding:24px}
.supplier h3{color:var(--navy);font-size:19px;margin-bottom:12px}
.supplier dl{display:grid;grid-template-columns:74px 1fr;row-gap:9px;font-size:14.5px}
.supplier dt{color:var(--mut)}
.supplier .tel-num{color:var(--blue);font-weight:800;font-size:19px}
.article-body h3{color:var(--navy);font-size:19px;margin:24px 0 10px}
.article-body p{color:#43586a;margin-bottom:12px}
.article-body ul{margin:0 0 12px 20px;color:#43586a}
.table-scroll{overflow-x:auto;margin:14px 0}
table.spec{border-collapse:collapse;width:100%;font-size:13.5px;background:#fff}
table.spec th,table.spec td{border:1px solid var(--line);padding:8px 10px;text-align:left;white-space:nowrap}
table.spec th{background:var(--light);color:var(--navy)}
.cta-box{background:var(--light);border:1px dashed var(--sky);border-radius:14px;padding:22px 26px;display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-top:34px}
.cta-box .big{font-size:18px;font-weight:700;color:var(--navy)}
.cta-box small{display:block;color:var(--mut);font-weight:400;font-size:13.5px}
.cta-box .btn{margin-left:auto}
.news-list{display:grid;gap:18px}
.news-row{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px 24px;display:flex;gap:20px;align-items:flex-start;transition:.25s}
.news-row:hover{border-color:var(--sky);box-shadow:0 8px 22px rgba(20,51,78,.08)}
.news-row .dbox{flex:none;text-align:center;background:var(--light);border-radius:10px;padding:10px 14px;color:var(--blue)}
.news-row .dbox b{display:block;font-size:21px;line-height:1.2}
.news-row h3{font-size:17px;color:var(--navy);margin-bottom:6px}
.news-row p{font-size:14px;color:var(--mut)}
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:30px}
.contact-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px;text-align:center}
.contact-card .ic{font-size:26px}
.contact-card h3{color:var(--navy);margin:8px 0 4px}
.contact-card p{color:var(--mut);font-size:14px}
.contact-card .big{font-size:20px;color:var(--blue);font-weight:800}
.callbar{display:none}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}
@media(max-width:900px){
 .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;padding:10px 20px 16px;box-shadow:0 18px 30px rgba(20,51,78,.14)}
 .main-nav.open{display:flex}
 .burger{display:block}
 .head-tel{display:none}
 .hero-in{padding:56px 0 84px}
 .hero h1{font-size:30px}
 .adv .wrap{grid-template-columns:1fr 1fr}
 .about-grid,.pd-top{grid-template-columns:1fr}
 .grid3{grid-template-columns:1fr 1fr}
 .case-grid,.contact-grid{grid-template-columns:1fr}
 .foot-grid{grid-template-columns:1fr 1fr}
 .layout{grid-template-columns:1fr}
 .search-form{margin-left:0;width:100%}
 .search-form input{flex:1;width:auto}
 .cta-band .btn{margin-left:0}
 body{padding-bottom:56px}
 .callbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:80;background:var(--navy);color:#fff}
 .callbar a{flex:1;text-align:center;padding:14px 0;font-weight:700;font-size:15px}
 .callbar a:first-child{background:var(--sky)}
}
@media(max-width:560px){.grid3{grid-template-columns:1fr}.foot-grid{grid-template-columns:1fr}.adv .wrap{grid-template-columns:1fr}}

.hero-bg{filter:blur(5px) brightness(.8);transform:scale(1.18)}
.spec-scroll{overflow-x:auto;margin:14px 0}
.article-body table.spec td:first-child{font-weight:600;color:var(--navy)}
.pcard .thumb .ph-txt{color:#d8a97e}