:root{
  --bg:#F3F6F7;--surface:#FFFFFF;--surface-2:#EDF3F5;--ink:#14232A;--ink-2:#34474F;
  --muted:#5D7078;--line:#D4E0E4;--line-2:#B9C9CF;--blue:#0B6E8F;--blue-d:#08536B;
  --navy:#17343F;--orange:#C26A3D;--max:1200px;
  --sans:"Segoe UI","Noto Sans SC","Microsoft YaHei UI","Microsoft YaHei",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:15.5px;line-height:1.7;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{text-decoration:none;color:inherit}
button,input,select,textarea{font:inherit}
::selection{background:rgba(11,110,143,.18)}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 26px}
.mono{font-variant-numeric:tabular-nums}

/* top utility bar */
.topbar{background:var(--navy);color:#B9C9CE;font-size:12px}
.topbar .wrap{height:32px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.topbar span{display:inline-flex;align-items:center;gap:7px}
.topbar a:hover{color:#fff}
.topbar .split{margin:0 9px;color:#42606A}

/* header */
.head{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
.head-in{height:76px;display:flex;align-items:center;gap:30px}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand img{width:42px;height:42px;object-fit:contain}
.brand b{display:block;font-size:17px;line-height:1.2;letter-spacing:.02em}
.brand small{display:block;font-size:9px;line-height:1.2;color:var(--muted);letter-spacing:.08em;margin-top:2px}
.nav{display:flex;gap:23px;margin-left:auto;font-size:14px;color:var(--ink-2)}
.nav a{position:relative;padding:5px 0;white-space:nowrap}
.nav a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--blue);transition:right .2s}
.nav a:hover,.nav a.on{color:var(--blue)}
.nav a:hover::after,.nav a.on::after{right:0}
.head-right{display:flex;align-items:center;gap:9px;margin-left:8px}
.lang{border:1px solid var(--line-2);padding:5px 10px;font-size:11px;color:var(--muted);letter-spacing:.08em}
.lang:hover{color:var(--blue);border-color:var(--blue)}
.head-cta{background:var(--blue);color:#fff;padding:10px 16px;font-size:13px;font-weight:600;white-space:nowrap}
.head-cta:hover{background:var(--blue-d)}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line-2);background:transparent;padding:10px;flex-direction:column;justify-content:center;gap:5px;cursor:pointer}
.nav-toggle i{height:1.5px;background:var(--ink);display:block}

/* type */
h1,h2,h3,h4{margin:0;font-weight:650;line-height:1.25;letter-spacing:-.015em}
h1{font-size:clamp(32px,4vw,46px);line-height:1.18}
h2{font-size:clamp(26px,3vw,34px);line-height:1.25}
h3{font-size:19px}
p{margin:0}
.lead{font-size:16px;line-height:1.8;color:var(--ink-2)}
.muted{color:var(--muted)}
.eyebrow{font-size:11px;letter-spacing:.16em;color:var(--blue);font-weight:650;text-transform:uppercase}
.section{padding:66px 0;border-top:1px solid var(--line)}
.section-head{display:grid;grid-template-columns:.9fr 1.1fr;gap:38px;align-items:end;margin-bottom:28px}
.section-head h2{max-width:600px}
.section-head .lead{max-width:570px;font-size:14px;color:var(--muted)}

/* buttons */
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:11px 20px;border:1px solid transparent;font-size:13.5px;font-weight:600;cursor:pointer;transition:.18s}
.btn-p{background:var(--blue);color:#fff}
.btn-p:hover{background:var(--blue-d)}
.btn-s{border-color:var(--line-2);background:#fff;color:var(--ink)}
.btn-s:hover{border-color:var(--ink)}
.btn::after{content:"›";font-size:17px;line-height:1;margin-left:3px}
.btn.no-arrow::after{content:"";margin:0}

/* hero */
.hero{background:var(--surface-2);border-bottom:1px solid var(--line)}
.hero-in{display:grid;grid-template-columns:1.03fr .97fr;gap:44px;align-items:center;padding:54px 0 50px}
.hero h1{margin-top:14px;max-width:650px}
.hero h1 span{color:var(--blue)}
.hero .lead{margin-top:16px;max-width:600px}
.hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:25px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.hero-points div{padding:12px 14px 12px 0;border-right:1px solid var(--line)}
.hero-points div:nth-child(2){padding-left:14px}
.hero-points div:last-child{border-right:0;padding-left:14px}
.hero-points b{display:block;font-size:19px;line-height:1.2}
.hero-points span{display:block;font-size:11px;color:var(--muted);margin-top:3px}
.hero-media{background:#fff;border:1px solid var(--line-2);padding:10px;position:relative}
.hero-media::before{content:"";position:absolute;left:-1px;top:-1px;width:34px;height:34px;border-left:3px solid var(--blue);border-top:3px solid var(--blue)}
.hero-media img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#E3E9EA}
.hero-media figcaption{font-size:11px;color:var(--muted);padding:8px 2px 1px}
.hero-media .stamp{position:absolute;right:18px;top:18px;background:var(--navy);color:#fff;font-size:10px;letter-spacing:.08em;padding:5px 8px}

/* trust strip */
.trust{background:#fff;border-bottom:1px solid var(--line)}
.trust-in{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line)}
.trust-item{background:#fff;padding:20px 22px}
.trust-item b{display:block;font-size:26px;line-height:1.1;letter-spacing:-.02em}
.trust-item span{display:block;font-size:11px;color:var(--muted);margin-top:4px}

/* fit cards */
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.info-card{background:#fff;border:1px solid var(--line);padding:21px 20px}
.info-card .num{font-size:11px;color:var(--blue);letter-spacing:.1em;font-weight:650}
.info-card h3{margin:12px 0 7px;font-size:18px}
.info-card p{font-size:13.5px;color:var(--muted);line-height:1.7}

/* product cards */
.prods{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.prod{background:#fff;border:1px solid var(--line);display:flex;flex-direction:column}
.prod-img{background:#F1F5F6;border-bottom:1px solid var(--line);padding:10px}
.prod-img img{width:100%;aspect-ratio:16/10;object-fit:cover}
.prod-body{padding:18px 18px 16px;display:flex;flex-direction:column;flex:1}
.prod-body .tag{font-size:10px;letter-spacing:.1em;color:var(--orange);font-weight:650}
.prod-body h3{font-size:24px;margin:5px 0 4px}
.prod-body p{font-size:13px;color:var(--muted);line-height:1.6}
.prod-spec{margin-top:12px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}
.prod-spec div{display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px solid var(--line)}
.prod-spec b{font-weight:600;color:var(--ink)}
.prod-body .link{margin-top:14px;font-size:12.5px;color:var(--blue);font-weight:600}
.prod-body .link::after{content:" →"}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}
.step{padding:20px 20px 22px;border-right:1px solid var(--line)}
.step:last-child{border-right:0}
.step .n{font-size:11px;color:var(--blue);font-weight:650;letter-spacing:.08em}
.step h3{font-size:17px;margin:16px 0 6px}
.step p{font-size:13px;color:var(--muted);line-height:1.65}

/* table */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);background:#fff}
table{width:100%;border-collapse:collapse;min-width:720px}
th,td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--navy);color:#fff;font-size:11px;letter-spacing:.06em;font-weight:500}
td{font-size:13px;color:var(--muted)}
td:first-child{color:var(--ink);font-weight:500}
tbody tr:hover{background:#F6F9FA}

/* industries */
.inds{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.ind{background:#fff;border:1px solid var(--line);padding:16px 15px;min-height:92px}
.ind b{display:block;font-size:15px;margin-bottom:5px}
.ind span{font-size:11.5px;color:var(--muted);line-height:1.55}

/* service */
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.service{background:#fff;border:1px solid var(--line);padding:18px}
.service b{display:block;font-size:15px;margin-bottom:5px}
.service span{font-size:12.5px;color:var(--muted);line-height:1.6}

/* about */
.about{display:grid;grid-template-columns:.9fr 1.1fr;gap:38px;align-items:center}
.about figure{background:#fff;border:1px solid var(--line);padding:10px}
.about figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.about figcaption{font-size:11px;color:var(--muted);padding:8px 2px 1px}
.about-list{border-top:1px solid var(--line)}
.about-list div{padding:12px 0;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
.about-list b{display:block;color:var(--ink);font-size:14px;margin-bottom:2px}

/* contact */
.contact{background:var(--navy);color:#EAF1F3;border-top:0;padding:60px 0}
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:40px;align-items:start}
.contact h2{color:#fff}
.contact .lead{color:#B7C8CD}
.contact-list{margin-top:20px;border-top:1px solid rgba(255,255,255,.18)}
.contact-list div{display:grid;grid-template-columns:66px 1fr;gap:14px;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.14);font-size:13px}
.contact-list span{color:#8FA5AC}
.contact-list a:hover{color:#fff}
.form{background:#fff;color:var(--ink);padding:20px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.field{margin-bottom:10px}
.field label{display:block;font-size:11px;color:var(--muted);margin-bottom:4px}
.field input,.field textarea{width:100%;border:1px solid var(--line-2);background:#fff;color:var(--ink);padding:9px 10px;font-size:13px;outline:none}
.field input:focus,.field textarea:focus{border-color:var(--blue)}
.field textarea{min-height:78px;resize:vertical}
.form .btn{width:100%;margin-top:2px}
.form-note{font-size:11px;color:var(--muted);margin-top:8px;line-height:1.5}

/* footer */
.footer{background:#0F2027;color:#91A7AE;padding:26px 0;font-size:12px;border-top:1px solid #24424D}
.foot-in{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;align-items:center}
.foot-links{display:flex;gap:14px;flex-wrap:wrap}
.footer a:hover{color:#fff}
.psb{display:inline-flex;align-items:center;gap:4px;vertical-align:middle}
.psb img{width:14px;height:15px;object-fit:contain}
.foot-note{font-size:11px;color:#6F858C;line-height:1.6;margin-top:10px}
.sep{margin:0 7px;color:#47616A}

/* subpages */
.crumb{font-size:11px;color:var(--muted);padding:18px 0 0}
.crumb a:hover{color:var(--blue)}
.page-head{padding:30px 0 34px;border-bottom:1px solid var(--line);background:#fff}
.page-head h1{max-width:880px;margin-top:12px}
.page-head .lead{max-width:680px;margin-top:12px}
.detail{display:grid;grid-template-columns:1fr .9fr;gap:38px;align-items:start;padding:36px 0 50px}
.detail-media{background:#fff;border:1px solid var(--line);padding:10px}
.detail-media img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#E7EEF0}
.detail-media img.tall{aspect-ratio:auto;max-height:620px;object-fit:contain}
.detail-media figcaption{font-size:11px;color:var(--muted);padding:8px 2px 1px}
.two>*{min-width:0}
.spec{width:100%;table-layout:fixed;border:1px solid var(--line);background:#fff;border-collapse:collapse}
.spec th,.spec td{padding:10px 13px;border-bottom:1px solid var(--line);font-size:13px}
.spec th,.spec td{overflow-wrap:anywhere;word-break:break-word}
.spec th{width:35%;background:transparent;color:var(--muted);font-weight:400;letter-spacing:0}
.spec td{color:var(--ink)}
.deliver{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);margin-top:20px}
.deliver div{background:#fff;padding:15px 17px}
.deliver b{display:block;font-size:14px;margin-bottom:3px}
.deliver span{font-size:12px;color:var(--muted)}
.callout{border-left:2px solid var(--blue);background:#EDF4F6;padding:13px 16px;font-size:13px;color:var(--muted);margin-top:18px}
.callout b{color:var(--ink)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}

/* responsive */
@media(max-width:1000px){
  .nav{display:none;position:absolute;left:20px;right:20px;top:76px;background:#fff;border:1px solid var(--line);padding:8px 18px;flex-direction:column;gap:0}
  .nav.open{display:flex}
  .nav a{padding:11px 0;border-bottom:1px solid var(--line)}
  .nav a:last-child{border-bottom:0}
  .nav a::after{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .head-right{margin-left:auto}
  .head-cta{display:none}
  .hero-in{grid-template-columns:1fr;gap:28px;padding:38px 0}
  .hero h1{max-width:700px}
  .section-head,.about,.contact-grid,.detail,.two{grid-template-columns:1fr;gap:24px}
  .cards-3,.prods{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .step:nth-child(2){border-right:0}
  .step:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .inds,.service-grid{grid-template-columns:1fr 1fr}
  .section{padding:50px 0}
  .trust-item b{font-size:22px}
}
@media(max-width:620px){
  .wrap{padding:0 16px}
  .topbar{display:none}
  .head-in{height:64px}
  .nav{top:64px}
  .brand b{font-size:14px}.brand small{font-size:8px}.brand img{width:34px;height:34px}
  .hero-in{padding:30px 0}
  h1{font-size:29px}
  h2{font-size:23px}
  .hero-points{grid-template-columns:1fr 1fr}
  .hero-points div:nth-child(2){border-right:0}
  .hero-points div:nth-child(3){border-right:0;border-top:1px solid var(--line);padding-left:0}
  .cards-3,.prods,.steps,.inds,.service-grid,.deliver,.form-row{grid-template-columns:1fr}
  .step{border-right:0;border-bottom:1px solid var(--line)}
  .step:last-child{border-bottom:0}
  .section{padding:38px 0}
  .contact{padding:40px 0}
  .foot-in{display:block}
  .foot-links{margin-top:8px}
}