:root{--orange:#f4511e;--orange-dark:#da3f12;--ink:#17242c;--navy:#0b1e2b;--muted:#75828a;--line:#dfe5e8;--soft:#f5f7f7;--gap:clamp(24px,6.25vw,120px)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{margin:0;color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7;background:#fff;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
h1,h2,h3,p{margin:0}
button{font:inherit}
.wrap{width:100%;max-width:1920px;margin:auto;padding-inline:var(--gap)}
.eyebrow{display:flex;align-items:center;gap:13px;color:#8a969d;font:11px/1.4 Arial,sans-serif;letter-spacing:1.2px;text-transform:uppercase}
.eyebrow:before{content:"";width:32px;height:2px;background:var(--orange)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:28px;min-height:48px;padding:12px 25px;border:1px solid var(--orange);background:var(--orange);color:#fff;font-size:14px;transition:.25s}
.btn:hover{background:var(--orange-dark);border-color:var(--orange-dark);transform:translateY(-2px)}
.btn.outline{background:transparent;border-color:#ffffff8c}.btn.outline:hover{background:var(--orange);border-color:var(--orange)}
.textlink{display:inline-flex;gap:18px;color:var(--orange);font-size:14px;border-bottom:1px solid #f4511e78;padding-bottom:6px}
.header{height:88px;background:#fff;position:sticky;top:0;z-index:30;border-bottom:1px solid #edf0f1}
.header-inner{height:100%;display:flex;align-items:center;gap:30px}
.logo{width:210px;height:auto}
.nav{margin-left:auto;display:flex;align-items:center;gap:clamp(18px,2vw,38px);font-size:14px}
.nav a{position:relative;padding:32px 0}.nav a:hover,.nav a.active{color:var(--orange)}
.nav a.active:after{content:"";position:absolute;bottom:19px;left:0;width:22px;height:2px;background:var(--orange)}
.header .btn{min-height:44px;padding:10px 20px}
.menu{display:none;border:0;background:transparent;width:44px;height:44px;padding:10px;cursor:pointer}.menu i{display:block;height:2px;background:var(--ink);margin:6px 0}
.page-hero{position:relative;min-height:440px;display:flex;align-items:center;color:#fff;isolation:isolate;overflow:hidden}
.page-hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}
.page-hero:after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,#091b28f5 0%,#102938da 39%,#12263242 72%,#12263210)}
.page-hero-copy{padding-block:65px}.page-hero .eyebrow{color:#c4cfd4;margin-bottom:24px}
.page-hero h1{font-size:clamp(44px,4.2vw,78px);line-height:1.18;letter-spacing:-2px}.page-hero h1 em{font-style:normal;color:var(--orange)}
.page-hero p{max-width:630px;margin-top:21px;color:#d6dfe3;font-size:16px}
.crumb{display:flex;align-items:center;gap:9px;padding-block:18px;color:#929ca2;font-size:12px;border-bottom:1px solid #e8ecee}.crumb a:hover{color:var(--orange)}
.catalog-head{padding-top:76px}.catalog-head-row{display:flex;align-items:end;justify-content:space-between;gap:50px}
.catalog-head h2,.solution-intro h2{margin-top:18px;font-size:clamp(34px,3vw,54px);line-height:1.25}.catalog-head-copy{max-width:480px;color:var(--muted);font-size:15px}
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-top:42px;padding-bottom:27px;border-bottom:1px solid var(--line)}
.filter{border:1px solid #d8dfe2;background:#fff;color:#607079;padding:10px 21px;cursor:pointer;transition:.2s}.filter:hover,.filter.active{background:var(--ink);border-color:var(--ink);color:#fff}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding-block:38px 110px}
.product-card{border:1px solid #e0e5e7;background:#fff;transition:.3s;overflow:hidden}.product-card:hover{transform:translateY(-6px);box-shadow:0 18px 45px #10273618;border-color:transparent}
.product-photo{height:310px;background:#f2f4f4;overflow:hidden}.product-photo img{width:100%;height:100%;object-fit:cover;transition:.6s}.product-card:hover .product-photo img{transform:scale(1.035)}
.product-card-body{padding:28px 29px 30px}.product-tag{font:10px/1.4 Arial,sans-serif;color:var(--orange);letter-spacing:1.3px}.product-card h3{font-size:25px;margin-top:10px}.product-card p{color:var(--muted);font-size:14px;margin-top:11px;min-height:48px}.product-card-foot{display:flex;justify-content:space-between;align-items:center;margin-top:24px;padding-top:19px;border-top:1px solid #e7ebed;color:#7a878e;font-size:12px}.product-card-foot strong{color:var(--orange);font-size:19px;font-weight:400}
.empty{display:none;padding:70px;text-align:center;color:var(--muted);grid-column:1/-1}
.detail-hero{padding-block:70px;background:linear-gradient(135deg,#f8f9f9,#eef2f2)}
.detail-grid{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(370px,.88fr);gap:clamp(45px,7vw,120px);align-items:center}
.detail-media{position:relative;height:520px;background:#fff;overflow:hidden;box-shadow:0 24px 70px #0d273516}.detail-media img{width:100%;height:100%;object-fit:cover}.detail-media:after{content:"";position:absolute;left:0;bottom:0;width:90px;height:5px;background:var(--orange)}
.detail-info .eyebrow{margin-bottom:21px}.detail-info h1{font-size:clamp(40px,3.7vw,68px);line-height:1.18;letter-spacing:-2px}.detail-info .lead{font-size:18px;color:#4b5b64;margin-top:21px}.detail-points{display:grid;grid-template-columns:repeat(2,1fr);gap:15px;margin-top:30px}.detail-point{padding:16px 17px;border-left:2px solid var(--orange);background:#fff}.detail-point b{display:block;font-size:14px}.detail-point span{display:block;color:#849098;font-size:12px;margin-top:3px}.detail-actions{display:flex;gap:13px;margin-top:32px}.detail-actions .btn.secondary{color:var(--ink);background:transparent;border-color:#9ba6ac}.detail-actions .btn.secondary:hover{color:#fff;background:var(--ink);border-color:var(--ink)}
.spec-section{padding-block:92px}.spec-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:clamp(50px,8vw,140px)}.spec-section h2{font-size:clamp(34px,3vw,52px);line-height:1.3;margin-top:18px}.spec-copy{color:var(--muted);font-size:15px;margin-top:20px;max-width:430px}
.spec-table{border-top:2px solid var(--ink)}.spec-row{display:grid;grid-template-columns:.65fr 1.35fr;border-bottom:1px solid var(--line);padding:19px 8px}.spec-row dt{color:#89959b;font-size:13px}.spec-row dd{margin:0;font-weight:500;font-size:14px}
.feature-section{padding-block:88px;background:var(--navy);color:#fff}.feature-head{display:flex;justify-content:space-between;align-items:end;gap:40px}.feature-head h2{font-size:clamp(34px,3vw,52px);margin-top:18px}.feature-head p{color:#b9c5cb;max-width:470px;font-size:14px}.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);margin-top:48px;border-block:1px solid #ffffff22}.feature-item{min-height:210px;padding:33px 30px;border-left:1px solid #ffffff22}.feature-item:first-child{border-left:0}.feature-no{font:600 14px Arial;color:var(--orange)}.feature-item h3{font-size:20px;margin-top:25px}.feature-item p{color:#aebbc2;font-size:13px;margin-top:10px}
.related{padding-block:86px 105px}.related-title{display:flex;justify-content:space-between;align-items:end}.related-title h2{font-size:37px}.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:34px}.related .product-photo{height:240px}
.solutions-overview{padding-block:85px 108px}.solution-intro{display:grid;grid-template-columns:.85fr 1.15fr;gap:80px;align-items:end}.solution-intro p:last-child{color:var(--muted);font-size:15px;max-width:600px}
.solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:52px}.solution-card{position:relative;min-height:430px;display:flex;align-items:end;padding:31px;color:#fff;overflow:hidden;isolation:isolate}.solution-card>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:.7s}.solution-card:after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,#11283310 22%,#0a1d29ee 100%)}.solution-card:hover>img{transform:scale(1.045)}
.solution-card small{font:10px Arial;letter-spacing:1.5px;color:#d0dbe0}.solution-card h3{font-size:27px;margin-top:9px}.solution-card p{font-size:13px;color:#ccd7dc;margin-top:9px;min-height:45px}.solution-card .go{display:inline-flex;margin-top:20px;color:#fff;border-bottom:1px solid #ffffff70;padding-bottom:5px;font-size:13px}
.solution-detail-hero{position:relative;min-height:610px;display:flex;align-items:center;color:#fff;isolation:isolate;overflow:hidden}.solution-detail-hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}.solution-detail-hero:after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,#071a27f3,#0d2635cf 42%,#10283530 75%)}
.solution-detail-copy{padding-block:80px}.solution-detail-copy .eyebrow{color:#c6d1d6}.solution-detail-copy h1{font-size:clamp(45px,4.2vw,78px);line-height:1.2;margin-top:25px}.solution-detail-copy p{max-width:610px;margin-top:22px;color:#d2dde2;font-size:16px}.solution-detail-copy .btn{margin-top:34px}
.solution-body{padding-block:94px}.challenge{display:grid;grid-template-columns:.82fr 1.18fr;gap:clamp(55px,9vw,155px)}.challenge h2,.config h2,.process h2{font-size:clamp(34px,3vw,52px);line-height:1.3;margin-top:18px}.challenge-text>p{color:var(--muted);font-size:15px}.challenge-list{display:grid;gap:13px;margin-top:27px}.challenge-item{display:flex;gap:17px;padding:18px 20px;background:var(--soft);border-left:2px solid var(--orange)}.challenge-item b{font:600 16px Arial;color:var(--orange)}.challenge-item span{font-size:14px}
.config{padding-block:88px;background:#f3f5f5}.config-head{display:flex;align-items:end;justify-content:space-between;gap:45px}.config-head p{max-width:480px;color:var(--muted);font-size:14px}.config-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:44px}.config-card{padding:34px;background:#fff;border-top:3px solid var(--orange);min-height:230px}.config-card small{font:10px Arial;color:#9aa4a9;letter-spacing:1.2px}.config-card h3{font-size:22px;margin-top:16px}.config-card p{font-size:14px;color:var(--muted);margin-top:12px}.config-card strong{display:block;color:var(--orange);font-size:13px;margin-top:22px}
.process{padding-block:92px}.process-grid{display:grid;grid-template-columns:repeat(4,1fr);margin-top:44px}.process-step{position:relative;padding:29px 32px;border-left:1px solid var(--line);min-height:170px}.process-step:first-child{border-left:3px solid var(--orange)}.process-step b{font:600 34px Arial;color:#f4511e22}.process-step h3{font-size:18px;margin-top:13px}.process-step p{font-size:13px;color:var(--muted);margin-top:8px}
.cta{padding-block:52px;background:linear-gradient(112deg,#10232d,#2c3d47 57%,#10222d);color:#fff}.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}.cta h2{font-size:clamp(29px,2.25vw,43px);line-height:1.32}.cta p{font-size:14px;color:#bdc8ce;letter-spacing:3px;margin-top:9px}.cta-actions{display:flex;gap:14px}
.footer{padding-block:45px 22px}.footer-grid{display:grid;grid-template-columns:1.7fr repeat(3,1fr);gap:30px}.footer .logo{width:210px}.footer-tag{font-size:12px;color:#879298;letter-spacing:3px;margin-top:14px}.footer h3{font-size:14px;margin-bottom:14px}.footer a,.footer span{display:block;font-size:13px;color:#879198;line-height:2.1}.footer a:hover{color:var(--orange)}.footer-bottom{border-top:1px solid #e6eaec;margin-top:36px;padding-top:18px;color:#99a3a8;font-size:11px;display:flex;justify-content:space-between}
.backtop{position:fixed;right:20px;bottom:24px;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:#fff;border:1px solid #e0e6e9;color:#52616a;box-shadow:0 3px 14px #17293719;z-index:12}
@media(min-width:1800px){.product-photo{height:360px}.solution-card{min-height:500px}.page-hero{min-height:500px}}
@media(max-width:1100px){.product-grid,.solution-grid{grid-template-columns:repeat(2,1fr)}.detail-grid{gap:45px}.detail-media{height:460px}.feature-grid{grid-template-columns:repeat(2,1fr)}.feature-item:nth-child(3){border-left:0;border-top:1px solid #ffffff22}.feature-item:nth-child(4){border-top:1px solid #ffffff22}.config-grid{grid-template-columns:1fr 1fr}.process-grid{grid-template-columns:repeat(2,1fr)}.process-step:nth-child(3){border-left:3px solid var(--orange);border-top:1px solid var(--line)}.process-step:nth-child(4){border-top:1px solid var(--line)}}
@media(max-width:900px){.header{height:74px}.header-inner{height:74px}.menu{display:block;margin-left:auto}.header .btn{display:none}.nav{display:none;position:absolute;top:74px;left:0;right:0;margin:0;padding:14px var(--gap);background:#fff;box-shadow:0 14px 25px #0d24321b;flex-direction:column;align-items:stretch;gap:0}.nav.open{display:flex}.nav a{padding:12px 0}.nav a.active:after{display:none}.detail-grid,.spec-layout,.challenge,.solution-intro{grid-template-columns:1fr}.detail-media{height:430px}.solution-intro{gap:25px}.feature-head,.config-head{display:block}.feature-head p,.config-head p{margin-top:17px}.related-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){ :root{--gap:24px}.header{height:70px}.header-inner{height:70px}.nav{top:70px}.logo{width:155px}.page-hero{min-height:400px}.page-hero>img{object-position:64% center}.page-hero:after{background:linear-gradient(180deg,#091c2af0,#102a38be 70%,#112a3730)}.page-hero h1{font-size:43px}.page-hero p{font-size:14px}.catalog-head{padding-top:55px}.catalog-head-row{display:block}.catalog-head-copy{margin-top:18px}.filters{overflow:auto;flex-wrap:nowrap;padding-bottom:18px}.filter{white-space:nowrap;padding:9px 17px}.product-grid,.solution-grid{grid-template-columns:1fr;gap:16px;padding-bottom:70px}.product-photo{height:260px}.product-card-body{padding:24px}.empty{padding:40px 10px}.detail-hero{padding-block:48px}.detail-grid{grid-template-columns:1fr;gap:37px}.detail-media{height:330px}.detail-info h1{font-size:42px}.detail-points{grid-template-columns:1fr}.detail-actions{flex-direction:column}.detail-actions .btn{width:100%}.spec-section,.feature-section,.related,.solutions-overview,.solution-body,.config,.process{padding-block:62px}.spec-layout{gap:35px}.feature-grid{grid-template-columns:1fr}.feature-item{border-left:0;border-top:1px solid #ffffff22;min-height:170px}.feature-item:first-child{border-top:0}.related-grid{grid-template-columns:1fr}.solution-card{min-height:370px}.solution-detail-hero{min-height:610px}.solution-detail-hero>img{object-position:65% center}.solution-detail-hero:after{background:linear-gradient(180deg,#081b28ee,#102938d5 61%,#1029384c)}.solution-detail-copy{padding-bottom:190px}.solution-detail-copy h1{font-size:43px}.challenge{gap:32px}.config-grid{grid-template-columns:1fr}.process-grid{grid-template-columns:1fr}.process-step,.process-step:nth-child(3){border-left:3px solid var(--orange);border-top:1px solid var(--line)}.process-step:first-child{border-top:0}.cta-inner{display:block}.cta-actions{margin-top:24px;flex-direction:column}.footer-grid{grid-template-columns:repeat(2,1fr)}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{margin-top:7px}.backtop{width:36px;height:36px;right:12px;bottom:16px}}