:root{--blue:#15467f;--blue2:#1f6fb6;--orange:#df8b26;--ink:#17202a;--muted:#66717d;--line:#dce3e9;--soft:#f3f6f8;--white:#fff;--shadow:0 18px 45px rgba(13,40,70,.12);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;color:var(--ink);background:#fff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;line-height:1.7;background:#fff}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input,select,textarea{font:inherit}.container{width:min(1180px,calc(100% - 40px));margin:auto}.topbar{background:#0c2f57;color:#dce9f5;font-size:13px}.topbar .container{height:36px;display:flex;align-items:center;justify-content:space-between}.topbar a{color:#fff}.top-contact{display:flex;gap:12px;align-items:center}.top-contact i{height:13px;width:1px;background:#6f89a3}.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);box-shadow:0 6px 20px 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@media(max-width:1050px){.main-nav{gap:13px;font-size:13px}.brand span{display:none}.header-inner{gap:15px}.product-grid{grid-template-columns:repeat(2,1fr)}.adv-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:780px){body{padding-bottom:62px}.container{width:min(100% - 28px,1180px)}.topbar .container{justify-content:center}.topbar .container>span:first-child,.top-contact i,.top-contact:not(a){font-size:12px}.top-contact{display:none}.header-inner{min-height:68px}.brand img{width:54px;height:48px}.brand span{display:flex}.brand strong{font-size:17px}.brand small{font-size:9px}.nav-toggle{display:block;margin-left:auto}.main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:white;flex-direction:column;align-items:stretch;padding:10px 20px 20px;box-shadow:var(--shadow);gap:0}.main-nav.open{display:flex}.main-nav a{padding:11px;border-bottom:1px solid var(--line)}.main-nav a:after{display:none}.main-nav .nav-inquiry{margin-top:8px;text-align:center}.hero{min-height:560px}.hero-bg:after{background:linear-gradient(90deg,rgba(5,27,52,.94),rgba(7,39,70,.65))}.hero-content{padding:65px 0}.hero h1{font-size:38px}.hero p{font-size:17px}.hero-actions{display:grid;grid-template-columns:1fr 1fr}.hero-actions .btn:first-child{grid-column:1/-1}.hero-meta{gap:10px;flex-wrap:wrap;margin-top:34px}.section{padding:62px 0}.section-heading h2{font-size:29px}.product-grid{grid-template-columns:1fr}.split,.product-detail,.company-page,.contact-grid,.inquiry-layout{grid-template-columns:1fr;gap:34px}.feature-list{grid-template-columns:1fr}.industrial-panel{min-height:280px;padding:35px}.adv-grid{grid-template-columns:1fr 1fr}.photo-grid{grid-template-columns:1fr 1fr}.app-tags{grid-template-columns:1fr 1fr}.qual-grid{grid-template-columns:1fr 1fr}.cta .container{flex-direction:column;text-align:center}.page-hero{padding:52px 0}.page-hero h1{font-size:36px}.detail-sections{grid-template-columns:1fr}.product-grid.small{grid-template-columns:1fr}.contact-list{grid-template-columns:1fr}.inquiry-form{padding:22px}.form-grid{grid-template-columns:1fr}.form-grid .wide{grid-column:auto}.inquiry-aside{position:static}.search-results>a{grid-template-columns:100px 1fr}.search-results img{width:100px;height:90px}.search-results div{padding-left:14px}.search-results h2{font-size:18px}.footer-grid{grid-template-columns:1fr;gap:25px}.mobile-actions{display:flex;position:fixed;z-index:40;left:0;right:0;bottom:0;background:white;box-shadow:0 -5px 20px rgba(0,25,50,.14)}.mobile-actions a{flex:1;text-align:center;padding:15px 6px;font-weight:800;color:var(--blue)}.mobile-actions a.primary{background:var(--orange);color:white}.lightbox{padding:10px}.lightbox-prev{left:8px}.lightbox-next{right:8px}.success-card{padding:38px 22px}.footer-grid{padding-bottom:20px}}
@media(max-width:430px){.brand small{display:none}.hero h1{font-size:33px}.adv-grid{grid-template-columns:1fr}.qual-grid{grid-template-columns:1fr}.photo-grid{gap:7px}.product-body{padding:18px}.quick-specs div{grid-template-columns:88px 1fr}.big-search{flex-direction:column}}