/* 忠实保留桌面设计稿的页面样式与响应式断点。 */

    :root{--ink:#11171d;--muted:#62717d;--red:#e5262b;--line:#e4e9ed;--soft:#f4f7f9;--shadow:0 17px 42px rgba(17,35,47,.12)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;background:#fff}a{color:inherit;text-decoration:none}.topbar{height:36px;background:#151a1f;color:#dce3e9;padding:0 clamp(20px,5vw,80px);display:flex;justify-content:space-between;align-items:center;font-size:12px}.topbar span{margin-right:23px}.topbar a{font-weight:700;color:#fff}header{height:78px;display:flex;align-items:center;justify-content:space-between;padding:0 clamp(20px,5vw,80px);border-bottom:1px solid #e8edf0;background:#fff;position:sticky;top:0;z-index:20}.brand img{width:146px;display:block}nav{display:flex;gap:38px;align-items:center;font-size:15px;font-weight:650}nav>a{padding:28px 0 25px;position:relative}nav>a:hover,nav>a.active{color:var(--red)}nav>a.active:after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;border-radius:4px;background:var(--red)}.nav-contact{border:1px solid #d6dde3;border-radius:3px;padding:9px 15px}.mobile-toggle{display:none;border:0;background:none;font-size:24px}.hero{min-height:440px;position:relative;display:flex;align-items:center;overflow:hidden;color:#fff;background:#0b1118 var(--page-background0) center/cover no-repeat}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,12,18,.92),rgba(5,12,18,.69) 42%,rgba(5,12,18,.18))}.hero-inner{max-width:1320px;width:100%;margin:auto;padding:62px clamp(24px,6vw,84px);position:relative;z-index:1}.breadcrumb{font-size:12px;color:#c1ccd3;margin-bottom:23px}.breadcrumb b{color:#ff777a;margin:0 8px}h1{font-size:clamp(42px,5vw,67px);letter-spacing:-.045em;margin:0;line-height:1.12}.hero p{max-width:590px;line-height:1.8;color:#e4ebf0;font-size:16px;margin:18px 0 0}.section{padding:84px clamp(20px,6vw,84px)}.wrap{max-width:1320px;margin:auto}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}.kicker{font-size:12px;font-weight:800;color:var(--red);letter-spacing:.15em}.section h2{font-size:clamp(31px,3.2vw,47px);letter-spacing:-.04em;line-height:1.18;margin:10px 0 19px}.intro p{color:var(--muted);font-size:15px;line-height:1.9;margin:0 0 14px}.capabilities{display:grid;grid-template-columns:repeat(2,1fr);gap:2px;background:#e7edf1;margin-top:28px}.cap{background:#fff;padding:19px}.cap strong{display:block;font-size:16px;margin-bottom:7px}.cap span{font-size:12px;color:var(--muted);line-height:1.6}.image-card{position:relative;min-height:400px;background:#f1f5f7;overflow:hidden}.image-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.image-card:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(6,15,22,.66),transparent 52%)}.image-card .label{position:absolute;z-index:1;bottom:25px;left:25px;right:25px}.image-card .label strong{font-size:25px;color:#fff;display:block}.image-card .label span{color:#dce4e9;font-size:13px;line-height:1.6;display:block;margin-top:6px}.stats{background:#151d23;color:#fff;padding:40px clamp(20px,6vw,84px)}.stats-inner{max-width:1320px;margin:auto;display:grid;grid-template-columns:1.4fr repeat(3,1fr)}.stats-intro{font-size:22px;font-weight:750;line-height:1.45;max-width:340px}.stat{border-left:1px solid rgba(255,255,255,.18);padding:3px 30px}.stat strong{display:block;font-size:34px}.stat span{font-size:13px;color:#b4c0c9;margin-top:6px;display:block}.manufacturing{background:var(--soft)}.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}.section-head p{margin:0;max-width:430px;color:var(--muted);font-size:14px;line-height:1.75}.system-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.system{background:#fff;border:1px solid #e2e8ed;padding:25px;min-height:192px}.system .num{color:var(--red);font-size:12px;font-weight:800;letter-spacing:.12em}.system h3{font-size:21px;margin:28px 0 9px}.system p{font-size:13px;color:var(--muted);line-height:1.7;margin:0}.history{display:grid;grid-template-columns:.92fr 1.08fr;gap:42px;align-items:center}.history-image{background:#fff;border:1px solid var(--line);padding:8px}.history-image img{display:block;width:100%}.history-copy p{color:var(--muted);line-height:1.8;font-size:14px}.milestones{border-top:1px solid var(--line);margin-top:22px}.milestone{padding:13px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:78px 1fr;gap:12px;font-size:13px}.milestone b{color:var(--red);font-size:17px}.milestone span{color:#53616e;line-height:1.55}.cta{background:linear-gradient(120deg,#e9242a,#a51319);color:#fff;padding:56px clamp(20px,6vw,84px)}.cta-inner{max-width:1320px;margin:auto;display:flex;justify-content:space-between;align-items:center;gap:30px}.cta h2{font-size:34px;margin:0 0 9px}.cta p{color:#ffe4e5;margin:0;line-height:1.7;font-size:14px}.cta a{background:#fff;color:#c91d23;font-weight:800;padding:14px 22px;white-space:nowrap}footer{background:#0c1216;color:#b8c2ca;padding:30px clamp(20px,6vw,84px);font-size:12px}footer div{max-width:1320px;margin:auto}@media(max-width:980px){.two-col,.history{grid-template-columns:1fr;gap:38px}.stats-inner{grid-template-columns:repeat(2,1fr);gap:25px}.stats-intro{grid-column:1/-1}.system-grid{grid-template-columns:1fr 1fr}}@media(max-width:680px){.topbar span:nth-child(2),.topbar a{display:none}header{height:64px}.brand img{width:118px}nav{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;box-shadow:0 14px 25px rgba(0,0,0,.12);padding:8px 23px}.nav-open nav{display:grid;gap:0}nav>a{padding:12px 0}.mobile-toggle{display:block}.hero{min-height:360px}.section{padding:62px 20px}.section-head{display:block}.section-head p{margin-top:15px}.image-card{min-height:300px}.stats-inner,.system-grid{grid-template-columns:1fr}.stat{border-left:0;border-top:1px solid rgba(255,255,255,.18);padding:17px 0 0}.cta-inner{display:block}.cta a{display:inline-block;margin-top:21px}.history{gap:30px}}

/* Shared product-and-solutions navigation */
nav > .has-mega{position:relative;display:flex;align-items:center}nav > .has-mega > .nav-trigger{padding:28px 0 25px;position:relative;color:inherit;font-weight:650;font-size:15px;border:0;background:transparent;cursor:pointer;white-space:nowrap}nav > .has-mega > .nav-trigger:hover,.has-mega:hover .nav-trigger,.has-mega.is-open .nav-trigger,.has-mega .nav-trigger.active{color:var(--red,#e5262b)}.has-mega .nav-trigger.active:after,.has-mega.is-open .nav-trigger:after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;border-radius:8px;background:var(--red,#e5262b)}.mega-toggle{border:0;background:transparent;color:inherit;cursor:pointer;padding:28px 0 25px 6px;font-size:13px;transition:transform .2s}.has-mega.is-open .mega-toggle{color:var(--red,#e5262b);transform:rotate(180deg)}.mega-menu{width:min(900px,calc(100vw - 38px));position:absolute;z-index:50;top:100%;left:50%;padding:0;border:1px solid #e1e7ec;background:#fff;box-shadow:0 22px 48px rgba(6,21,34,.2);opacity:0;visibility:hidden;pointer-events:none;transform:translate(-40%,12px);transition:opacity .18s,transform .18s,visibility .18s}.has-mega:hover .mega-menu,.has-mega:focus-within .mega-menu,.has-mega.is-open .mega-menu{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-40%,0)}.mega-top{display:grid;grid-template-columns:205px 1fr}.mega-intro{padding:28px 24px;background:#151b20;color:#fff}.mega-intro small{color:#ff6d71;display:block;letter-spacing:.13em;font-size:10px;font-weight:800}.mega-intro strong{display:block;font-size:22px;margin:12px 0 9px}.mega-intro p{font-size:12px;line-height:1.7;color:#b9c3ca;margin:0}.mega-groups{display:grid;grid-template-columns:repeat(3,1fr);padding:22px 14px 15px;gap:0}.mega-group{display:block;min-height:124px;padding:7px 13px 14px;border-left:1px solid #edf0f3;transition:background .16s}.mega-group:first-child{border-left:0}.mega-group:hover{background:#fafbfc;color:inherit}.mega-title{display:block;color:var(--red,#e5262b);font-size:17px;font-weight:800;margin-bottom:7px}.mega-sub{display:block;color:#26323c;font-size:12px;line-height:1.55;font-weight:700}.mega-links{display:block;margin-top:9px;color:#798591;font-size:11px;line-height:1.7}.mega-bottom{border-top:1px solid #e9edf0;padding:13px 24px;display:flex;gap:26px;align-items:center;background:#f8fafb}.mega-bottom a{padding:0!important;font-size:12px!important;color:#536270!important}.mega-bottom a:hover{color:var(--red,#e5262b)!important}.mega-bottom strong{color:#202a33;margin-right:auto;font-size:12px}@media(max-width:680px){.has-mega{display:flex!important;flex-wrap:wrap}.has-mega .nav-trigger{width:calc(100% - 36px);padding:12px 0!important;text-align:left}.mega-toggle{width:36px;padding:12px 3px}.mega-menu{position:static;width:100%;display:none;transform:none;margin:0 0 7px;box-shadow:none;border:1px solid #e5e9ed;flex-basis:100%}.has-mega:hover .mega-menu,.has-mega:focus-within .mega-menu,.has-mega.is-open .mega-menu{display:block;transform:none}.mega-top{grid-template-columns:1fr}.mega-intro{padding:15px 17px}.mega-intro strong{font-size:18px;margin:6px 0}.mega-intro p{display:none}.mega-groups{grid-template-columns:repeat(2,1fr);padding:10px 5px}.mega-group{min-height:96px;padding:9px 11px}.mega-title{font-size:15px}.mega-bottom{padding:11px 15px;gap:12px;flex-wrap:wrap}.mega-bottom strong{width:100%}}