:root{font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;color:#111827;background:#fff;font-synthesis:none}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;min-width:320px;min-height:100vh;display:flex;flex-direction:column}
main{flex:1}
button,input,select{font:inherit}
button{cursor:pointer}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.skip-link{position:absolute;left:-9999px;top:0;background:#fff;padding:12px;z-index:99}
.skip-link:focus{left:0}
.site-header{height:66px;display:flex;align-items:center;justify-content:space-between;padding:0 32px;background:#fff;box-shadow:0 2px 14px #162a3d0d;position:sticky;top:0;z-index:20}
.site-logo{display:flex;align-items:center;gap:9px;color:#008b89;line-height:1}
.site-logo img{width:110px;height:42px;object-fit:contain}
.logo-caption{font-size:10px;color:#829098;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:7px;margin-left:120px}
.main-nav>a,.nav-dropdown>a{font-size:14px;font-weight:500;padding:9px 17px;border-radius:7px;display:block;white-space:nowrap}
.main-nav a:hover,.main-nav a.active{color:#008d91;background:#d5eeee}
.nav-dropdown{position:relative}
.dropdown-panel{display:none;position:absolute;top:100%;left:0;min-width:160px;background:#fff;box-shadow:0 10px 32px #172d3c20;border-radius:8px;padding:7px}
.dropdown-panel a{display:block;padding:9px 12px;font-size:13px;border-radius:5px}
.nav-dropdown:hover .dropdown-panel,.nav-dropdown:focus-within .dropdown-panel{display:block}
.lang-mark{font-size:13px;color:#334155}
.mobile-menu{display:none;border:0;background:none;padding:9px}
.mobile-menu span{display:block;width:23px;height:2px;background:#1f2937;margin:5px}
.site-footer{min-height:58px;border-top:1px solid #e9eaec;display:flex;justify-content:space-between;align-items:center;padding:12px 32px;color:#75808c;font-size:12px}
.site-footer a{font-size:16px;font-weight:700;color:#1b2635}
.container{width:100%;max-width:none;margin:0 auto;padding-inline:clamp(20px,3vw,64px)}
.center{text-align:center}
.page-hero{background:#f4f5f7;padding:58px 20px 62px;text-align:center}
.page-hero h1{font-size:36px;margin:0 0 12px;font-weight:700}
.page-hero p{font-size:18px;color:#637080;margin:0}
.page-hero .metrics{display:flex;justify-content:center;gap:38px;margin-top:35px}
.metric strong{display:block;font-size:25px;line-height:1.2}
.metric span{font-size:14px;color:#687180}
.page-hero:has(.metrics){padding-block:42px 46px}
.page-hero .metrics{margin-top:22px}
.page-hero .metric{min-width:150px;padding:12px 24px;border:1px solid #dce7e8;border-radius:10px;background:#fff}
.home-hero{height:594px;background:#071b29;display:flex;align-items:center;justify-content:center;text-align:center;padding:35px}
.home-hero h1{color:#008e90;font-size:60px;line-height:1.35;margin:0;font-weight:700}
.home-hero p{font-size:24px;margin:19px 0 23px;color:#1c242d}
.dark-button{display:inline-flex;align-items:center;justify-content:center;gap:10px;background:#111;color:#fff;border:0;border-radius:13px;min-width:148px;padding:12px 20px;font-size:15px}
.dark-button:hover{background:#008e90}
.section{padding:70px 0}
.section h2{font-size:36px;text-align:center;margin:0 0 36px}
.section-intro{max-width:1040px;margin:0 auto;color:#687180;font-size:16px;line-height:1.9}
.section-intro p{margin:0 0 14px}
.section-more{text-align:center;margin-top:30px}
.outline-button{display:inline-block;background:#fff;border:1px solid #dbe1e5;color:#142135;border-radius:10px;padding:10px 20px;font-size:14px}
.outline-button:hover{border-color:#008e90;color:#008e90}
.advantages{background:#f6f7f8}
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.adv-card{background:#fff;text-align:center;padding:34px 24px;border-radius:10px;min-height:220px;box-shadow:0 2px 8px #1021330a}
.adv-icon{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;margin:0 auto 18px;background:#e1f3f2;color:#008f90;font-size:25px}
.adv-card h3{font-size:20px;margin:0 0 12px}
.adv-card p{font-size:14px;color:#697481;line-height:1.7;margin:0}
.section-lead{text-align:center;color:#6a7280;font-size:16px;margin:-18px auto 35px}
.product-scroller{display:flex;gap:22px;overflow-x:auto;padding:8px 3px 20px;scrollbar-width:thin}
.product-card{display:block;min-width:calc((100% - 88px)/5);width:calc((100% - 88px)/5);flex:none;border:1px solid #e6e7e9;border-radius:10px;background:#fff;box-shadow:0 2px 4px #19233013;overflow:hidden;transition:transform .2s,box-shadow .2s}
.product-card:hover{transform:translateY(-4px);box-shadow:0 12px 28px #19233020}
.product-card img{height:217px;width:100%;object-fit:contain;background:#fff}
.product-card .card-body{padding:10px 13px 18px}
.product-card h3{font-size:14px;line-height:1.25;height:36px;margin:0 0 9px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cta{background:#f3f6f7;text-align:center;padding:72px 16px}
.cta h2{font-size:34px;margin:0 0 8px}
.cta p{color:#687180;margin:0 0 25px}
.cta .outline-button{margin-left:12px}
.filter-bar{display:grid;grid-template-columns:repeat(3,1fr);gap:45px;border:1px solid #e4e6e8;box-shadow:0 1px 4px #17243415;border-radius:9px;margin:30px auto 22px;padding:16px}
.filter-bar label{display:flex;align-items:center;gap:14px;font-size:14px;font-weight:600;white-space:nowrap}
.filter-bar select,.filter-bar input{min-width:0;width:100%;padding:8px 12px;border:1px solid #e5e8eb;border-radius:7px;background:#fff;color:#333;font-size:13px;font-weight:400}
.filter-bar input:focus,.filter-bar select:focus{outline:2px solid #bce6e4}
.product-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:24px;margin-bottom:35px}
.product-grid .product-card{width:auto;min-width:0}
.pager{text-align:center;margin:36px 0 55px}
.pager button{padding:8px 14px;border:1px solid #ddd;background:#fff;border-radius:6px;margin:0 4px}
.pager button.active{background:#008e90;border-color:#008e90;color:#fff}
.source-hint{color:#7a8290;font-size:13px;line-height:1.6;margin:25px 0}
.detail-back{display:flex;align-items:center;gap:22px;padding:35px 0;color:#7a8290;font-size:14px}
.detail-back a{color:#202735;font-weight:600}
.detail-box{border:1px solid #e5e7eb;border-radius:10px;padding:32px;display:grid;grid-template-columns:1fr 1fr;gap:32px}
.detail-gallery{min-width:0}
.detail-large{height:440px;width:100%;object-fit:contain}
.thumb-row{display:flex;gap:8px;overflow-x:auto;margin-top:18px}
.thumb-row button{background:#fff;border:1px solid #e4e7eb;border-radius:9px;min-width:108px;width:108px;height:94px;padding:4px}
.thumb-row button.active{border:2px solid #2885f4}
.thumb-row img{width:100%;height:100%;object-fit:contain}
.detail-copy h1{font-size:25px;line-height:1.35;margin:0 0 10px}
.detail-copy>p{font-size:14px;line-height:1.6;color:#9ba2ac}
.detail-copy .pill{margin:12px 0 25px}
.detail-copy hr{border:0;border-top:1px solid #e5e7eb;margin:0 0 24px}
.detail-copy h2{font-size:18px;margin:0 0 16px}
.feature-list{padding:0;margin:0;list-style:none}
.feature-list li{position:relative;padding:0 0 18px 24px;color:#66717e;font-size:14px;line-height:1.6}
.feature-list li:before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;background:#2682ee;border-radius:50%}
.specs{padding:55px 0}
.specs h2{font-size:28px}
.spec-table{border-collapse:collapse;width:100%;font-size:14px}
.spec-table th,.spec-table td{border-bottom:1px solid #e4e6ea;text-align:left;padding:15px}
.spec-table th{color:#6c7380;width:30%;font-weight:500;background:#f8f9fa}
.about-copy{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.about-copy p{color:#626d79;line-height:1.8;text-indent:0;margin:0 0 20px}
.about-copy img{border-radius:9px;width:100%}
.base-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin-top:35px}
.base-grid figure{margin:0}
.base-grid img{width:100%;height:165px;object-fit:cover;border-radius:7px}
.base-grid figcaption{text-align:center;color:#6b7582;padding:10px}
.article{max-width:860px;margin:50px auto 90px}
.article h1{font-size:34px;line-height:1.4}
.article .article-meta{color:#88919b;padding-bottom:25px;border-bottom:1px solid #e5e7eb}
.article-content{line-height:1.9;color:#586575}
.contact-section{padding:60px 0}
.contact-section h2{text-align:center;font-size:24px;margin:0 0 38px}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:38px;max-width:900px;margin:auto}
.contact-item{display:flex;gap:16px;align-items:flex-start}
.contact-icon{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;background:#e5efff;color:#2873eb;font-size:22px;flex:none}
.contact-item:nth-child(2) .contact-icon{background:#fff8d7;color:#d8a000}
.contact-item:nth-child(3) .contact-icon{background:#f4e6ff;color:#9b38dc}
.contact-item h3{margin:0 0 8px;font-size:18px}
.contact-item p{color:#66717d;font-size:14px;line-height:1.7;margin:0}
.job-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;padding:65px 0}
.job-card{border:1px solid #e5e7eb;box-shadow:0 1px 4px #17243414;border-radius:9px;padding:24px;display:flex;justify-content:space-between;align-items:center}
.job-card strong{display:block;font-size:18px;margin-bottom:7px}
.job-card small{color:#929ca7}
.job-card .arrow{font-size:24px;color:#9aa2ad}
.pdf-links{display:flex;gap:15px;flex-wrap:wrap;justify-content:center;margin-top:28px}
.pdf-links a{border:1px solid #dbe3e5;border-radius:8px;padding:10px 15px;color:#008c90}
.catalog-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:35px 0}
.catalog-list div{padding:16px;border:1px solid #e5e7eb;border-radius:8px;font-size:13px}
.empty{text-align:center;color:#737d89;padding:60px 15px}
@media(max-width:900px){.main-nav{margin-left:0;gap:0}.main-nav>a,.nav-dropdown>a{padding:8px;font-size:12px}.adv-grid{grid-template-columns:repeat(2,1fr)}.product-grid{grid-template-columns:repeat(3,1fr)}.product-card{min-width:210px;width:210px}.filter-bar{gap:12px}.home-hero h1{font-size:50px}.home-hero p{font-size:19px}}
@media(max-width:640px){.site-header{height:62px;padding:0 16px}.mobile-menu{display:block;margin-left:auto}.lang-mark{display:none}.main-nav{display:none;position:absolute;top:62px;left:0;right:0;background:#fff;box-shadow:0 10px 20px #162a3d17;flex-direction:column;align-items:stretch;padding:10px}.main-nav.open{display:flex}.main-nav>a,.nav-dropdown>a{font-size:15px;padding:12px}.dropdown-panel{position:static;box-shadow:none}.site-footer{padding:16px;display:block}.site-footer span{display:block;margin-top:6px}.home-hero{height:500px;padding:25px}.home-hero h1{font-size:39px}.home-hero p{font-size:16px}.section{padding:55px 0}.section h2{font-size:29px}.page-hero{padding:45px 18px}.page-hero h1{font-size:30px}.page-hero p{font-size:15px}.page-hero .metrics{gap:18px}.adv-grid,.contact-grid,.job-grid,.about-copy{grid-template-columns:1fr}.product-grid{grid-template-columns:repeat(2,1fr);gap:12px}.product-grid .product-card img{height:155px}.product-card h3{font-size:12px}.filter-bar{grid-template-columns:1fr;gap:12px}.filter-bar label{display:grid;gap:7px}.detail-box{grid-template-columns:1fr;padding:15px}.detail-large{height:310px}.detail-copy h1{font-size:21px}.base-grid{grid-template-columns:repeat(2,1fr)}.catalog-list{grid-template-columns:1fr}.article{margin:25px 16px 60px}.cta h2{font-size:27px}}
@media(max-width:640px){
  .site-logo .logo-caption{display:none}
  .mobile-menu[aria-expanded="true"] span:first-child{transform:translateY(7px) rotate(45deg)}
  .mobile-menu[aria-expanded="true"] span:nth-child(2){opacity:0}
  .mobile-menu[aria-expanded="true"] span:last-child{transform:translateY(-7px) rotate(-45deg)}
  .main-nav.open{padding:12px 16px 20px}
  .main-nav>a,.nav-dropdown>a{padding:13px 16px;font-size:15px}
  .home-hero{height:294px;padding:15px 22px}
  .home-hero h1{font-size:27px;line-height:1.75}
  .home-hero p{font-size:17px;line-height:1.5;margin:11px auto 16px}
  .home-hero .dark-button{padding:10px 17px;min-width:148px}
  .home-about{padding-top:64px}
  .home-about h2{text-align:left}
  .page-hero{min-height:300px;display:flex;flex-direction:column;justify-content:center}
  .page-hero .metrics{margin-top:28px}
  .product-grid{grid-template-columns:1fr;gap:24px}
  .product-grid .product-card img{height:320px}
  .product-grid .product-card h3{font-size:14px;height:auto;min-height:38px}
  .product-grid .product-card .card-body{padding:12px 14px 18px}
  .filter-bar{margin-top:30px;margin-bottom:26px}
  .filter-bar label{display:flex;gap:10px}
  .filter-bar label select,.filter-bar label input{width:70%}
  .thumb-row{flex-wrap:wrap;overflow:visible}
  .thumb-row button{min-width:64px;width:64px;height:64px}
}

/* 宽屏铺满可用视口；长篇正文仍保留合适的阅读行宽。 */
.site-header,.site-footer{padding-inline:clamp(20px,3vw,64px)}
.main-nav{margin-left:0;flex:1;justify-content:center}
.home-hero{min-height:560px;height:clamp(560px,31.25vw,620px)}
.home-hero>div{max-width:1100px;padding-inline:24px}
.home-hero p{max-width:48ch;margin-inline:auto;line-height:1.55}
.section-intro{max-width:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(24px,4vw,88px);align-items:start}
.section-intro p{max-width:68ch;margin:0}
.adv-grid{gap:clamp(16px,1.6vw,32px)}
.product-grid{grid-template-columns:repeat(5,minmax(0,1fr));gap:clamp(16px,1.5vw,32px)}
.product-card{min-width:calc((100% - 4 * clamp(16px,1.5vw,32px))/5);width:calc((100% - 4 * clamp(16px,1.5vw,32px))/5)}
.product-scroller{gap:clamp(16px,1.5vw,32px)}
.about-copy{gap:clamp(32px,4vw,90px)}
.about-copy > img{height:clamp(340px,23vw,440px);min-height:0;max-height:none;object-fit:cover;object-position:center 42%}
.contact-grid{max-width:none;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(24px,4vw,80px)}
.article{width:min(100% - 40px,920px)}
.catalog-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;padding-top:48px}
.catalog-heading h1{font-size:32px;margin:0 0 7px}
.catalog-heading p{font-size:15px;line-height:1.6;color:#687180;margin:0}
.catalog-heading>a{color:#008c90;font-size:14px;white-space:nowrap}
.result-meta{color:#64717d;font-size:14px;margin:18px 0 16px}
.catalog-controls{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:32px}
.catalog-controls label{display:grid;gap:9px;font-size:14px;font-weight:600}
.catalog-controls input,.catalog-controls select{width:100%;min-width:0;border:1px solid #dbe2e7;border-radius:8px;background:#fff;padding:11px 13px;font-weight:400}
.catalog-list{grid-template-columns:repeat(auto-fit,minmax(250px,1fr));margin-top:0}
.catalog-list small a{color:#008c90;text-decoration:underline;text-underline-offset:2px}
.article-note{background:#eef7f7;color:#46636a;border-left:3px solid #008e90;padding:11px 14px;line-height:1.6;font-size:14px}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #008e90;outline-offset:3px}
@media(min-width:1600px){
  .product-grid{grid-template-columns:repeat(5,minmax(0,1fr))}
  .product-card{min-width:calc((100% - 4 * clamp(16px,1.5vw,32px))/5);width:calc((100% - 4 * clamp(16px,1.5vw,32px))/5)}
  .job-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media(min-width:2100px){
  .product-grid{grid-template-columns:repeat(6,minmax(0,1fr))}
  .product-card{min-width:calc((100% - 5 * clamp(16px,1.5vw,32px))/6);width:calc((100% - 5 * clamp(16px,1.5vw,32px))/6)}
  .job-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
}
@media(max-width:900px){
  .container{padding-inline:20px}
  .main-nav{flex:none;justify-content:flex-start}
  .home-hero{height:500px;min-height:0}
  .section-intro{grid-template-columns:1fr;gap:12px}
  .product-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .product-card{min-width:210px;width:210px}
  .contact-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .job-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:640px){
  .container{padding-inline:16px}
  .site-header,.site-footer{padding-inline:16px}
  .detail-back{display:block;padding:24px 0}
  .detail-back a{display:inline-block;margin-bottom:10px}
  .detail-back span{display:block;overflow-wrap:anywhere}
  .home-hero{height:294px}
  .home-hero>div{padding-inline:0}
  .home-hero p{max-width:34ch}
  .product-grid,.contact-grid{grid-template-columns:1fr}
  .product-grid .product-card{width:auto;min-width:0}
  .about-copy > img{min-height:0;height:260px;max-height:none}
  .article{width:auto}
  .catalog-heading{display:block;padding-top:30px}
  .catalog-heading h1{font-size:27px}
  .catalog-heading>a{display:inline-block;margin-top:14px}
  .catalog-controls,.job-grid{grid-template-columns:1fr}
  .catalog-list{grid-template-columns:1fr}
}

/* 光泰达资料站：以选型信息为中心的统一版式 */
:root{--teal:#087d80;--ink:#102b32;--muted:#60737a;--line:#dce7e8;--paper:#f3f8f8}
.site-header{border-bottom:1px solid #edf1f1;box-shadow:0 4px 24px #123d4010}
.site-logo{gap:12px;color:var(--ink)}
.brand-mark{width:36px;height:36px;display:grid;place-items:center;border-radius:10px;background:var(--teal);color:#fff;font-size:23px;font-weight:800;letter-spacing:-.08em}
.brand-wordmark{display:grid;gap:3px}
.brand-wordmark strong{font-size:18px;letter-spacing:.04em}
.brand-wordmark small{font-size:10px;color:#74868b;white-space:nowrap}
.main-nav a.active,.main-nav a:hover{color:var(--teal);background:#eaf5f4}
.main-nav .nav-action{background:var(--teal);color:#fff;padding-inline:20px}
.main-nav .nav-action:hover,.main-nav .nav-action.active{background:#075f62;color:#fff}
.home-hero{justify-content:flex-start;text-align:left;background-position:center right}
.home-hero>div.hero-panel{width:min(780px,58vw);max-width:none;padding:45px clamp(28px,4vw,76px);margin-left:clamp(0px,2vw,30px);background:#ffffffea;border:1px solid #ffffffa8;box-shadow:0 24px 60px #163f4320;border-radius:20px;backdrop-filter:blur(8px)}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.13em;color:var(--teal);text-transform:uppercase;margin-bottom:16px}
.home-hero h1{color:var(--ink);font-size:clamp(40px,3.6vw,68px);line-height:1.16;letter-spacing:-.03em}
.home-hero p{font-size:clamp(16px,1.3vw,21px);color:#40575e;max-width:34ch;margin:22px 0 29px;line-height:1.7}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.dark-button{background:var(--teal);border-radius:8px;min-height:46px}
.dark-button:hover{background:#075f62}
.outline-button{border-color:#b9d3d3;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;min-height:46px}
.text-link{color:var(--teal);font-weight:700}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:28px}
.section-heading h2{margin:0 0 8px;text-align:left;font-size:clamp(28px,2.5vw,40px);color:var(--ink)}
.section-heading p{margin:0;color:var(--muted);line-height:1.7}
.section-heading .eyebrow{margin-bottom:9px}
.section-heading .text-link{white-space:nowrap;padding-bottom:6px}
.speed-section{padding-top:78px}
.speed-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.speed-grid a{min-height:168px;padding:27px;border:1px solid var(--line);border-radius:14px;background:#fff;display:flex;flex-direction:column;justify-content:space-between;transition:transform .2s,box-shadow .2s,border-color .2s}
.speed-grid a:hover{transform:translateY(-3px);border-color:#8bbebd;box-shadow:0 13px 30px #153c3f14}
.speed-grid strong{font-size:clamp(34px,3vw,52px);line-height:1;color:var(--ink);letter-spacing:-.05em}
.speed-grid span{font-size:14px;color:var(--teal);font-weight:700}
.speed-grid small{display:block;margin-top:16px;color:#657c81;font-size:13px}
.speed-grid .catalog-tile{background:var(--ink);border-color:var(--ink)}
.speed-grid .catalog-tile strong,.speed-grid .catalog-tile span{color:#fff}
.speed-grid .catalog-tile small{color:#b5d3d5}
.adv-card{text-align:left;min-height:186px;padding:27px;border:1px solid #e5eeee;box-shadow:none}
.step-no{font-size:12px;letter-spacing:.12em;color:var(--teal);font-weight:800}
.adv-card h3{margin:20px 0 9px;font-size:19px;color:var(--ink)}
.adv-card p{line-height:1.7}
.product-card{border-color:#e2e9e9;box-shadow:none;border-radius:12px}
.product-card:hover{border-color:#a1c5c4}
.product-media{position:relative;background-color:#f8fbfb;background-repeat:no-repeat;background-size:170% auto;background-position:center 46%}
.product-media img{height:200px;background:transparent;opacity:0}
.speed-badge{position:absolute;left:12px;top:12px;background:#e9f5f4;color:var(--teal);font-size:12px;font-weight:800;padding:5px 9px;border-radius:5px}
.product-card .card-body{padding:16px}
.product-card h3{font-size:14px;height:auto;min-height:55px;line-height:1.4;margin:0 0 14px}
.card-specs{display:grid;gap:7px;padding:12px 0;border-top:1px solid #ecf0f0;border-bottom:1px solid #ecf0f0;min-height:88px}
.card-specs span{display:flex;gap:8px;align-items:start;font-size:12px;color:#3a4b51;line-height:1.35}
.card-specs b{color:#809095;min-width:28px;font-weight:500}
.card-link{display:inline-block;color:var(--teal);font-size:13px;font-weight:700;margin-top:14px}
.cta{background:#e9f4f3}
.cta h2{color:var(--ink)}
.speed-tabs{display:flex;gap:10px;flex-wrap:wrap;margin:32px 0 16px}
.speed-tabs button{background:#fff;border:1px solid var(--line);border-radius:8px;padding:9px 20px;color:#38525a;font-weight:700}
.speed-tabs button.active{background:var(--teal);border-color:var(--teal);color:#fff}
.filter-bar{grid-template-columns:1fr 1fr 1.4fr auto;gap:16px;margin:0 auto 22px;padding:18px;background:#f8fbfb;box-shadow:none}
.filter-bar label{display:grid;gap:8px;align-items:start;color:#365259}
.filter-bar select,.filter-bar input{padding:10px 12px;border-color:var(--line)}
.clear-filters{align-self:end;border:1px solid var(--line);background:#fff;border-radius:8px;padding:10px 14px;white-space:nowrap;color:var(--teal)}
.result-meta strong{color:var(--ink)}
.detail-box{border-color:var(--line);gap:clamp(32px,4vw,80px)}
.detail-copy h1{font-size:clamp(26px,2vw,35px);color:var(--ink);line-height:1.35;margin:0 0 20px}
.detail-copy>p{color:#52646a;font-size:15px;line-height:1.75}
.detail-copy .source-hint{font-size:12px;margin:16px 0 0;color:#7a898d}
.detail-facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-bottom:22px}
.detail-facts span{padding:12px;background:var(--paper);border-radius:8px;min-width:0}
.detail-facts small{display:block;color:#6e8388;margin-bottom:6px}
.detail-facts strong{display:block;font-size:14px;color:var(--ink);overflow-wrap:anywhere}
.feature-list li:before{background:var(--teal)}
.requirements-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.requirements-grid>div{border:1px solid var(--line);border-radius:12px;padding:24px;background:#fff}
.requirements-grid b{font-size:13px;color:var(--teal)}
.requirements-grid h3{font-size:18px;color:var(--ink);margin:18px 0 8px}
.requirements-grid p{margin:0;color:var(--muted);line-height:1.7;font-size:14px}
.contact-next{background:var(--paper);padding:28px;margin-top:28px;border-radius:12px}
.contact-next h3{margin:0 0 8px;color:var(--ink)}
.contact-next p{color:var(--muted);line-height:1.75;max-width:80ch}
.contact-next>div{display:flex;gap:12px;flex-wrap:wrap}
.supplier-attribution{display:flex;align-items:center;gap:16px;padding:15px 18px;margin:20px 0;background:#f3f8f8;border:1px solid var(--line);border-radius:10px;color:#52666b;font-size:13px}
.about-copy .supplier-attribution img{display:block;width:120px;height:auto;max-height:54px;min-height:0;object-fit:contain;flex:0 0 auto}
@media(max-width:1100px){.filter-bar{grid-template-columns:repeat(2,minmax(0,1fr))}.speed-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.requirements-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:900px){.home-hero>div.hero-panel{width:min(720px,90vw)}}
@media(max-width:640px){.brand-wordmark strong{font-size:16px}.brand-wordmark small{font-size:9px}.brand-mark{width:33px;height:33px;font-size:21px}.home-hero{height:auto;min-height:420px;padding:22px;background-position:60% center}.home-hero>div.hero-panel{width:100%;margin:0;padding:26px 22px;border-radius:14px}.home-hero h1{font-size:35px;line-height:1.25}.home-hero p{font-size:15px;max-width:none;margin:16px 0 22px}.section-heading{display:block}.section-heading .text-link{display:inline-block;margin-top:15px}.speed-grid{gap:10px}.speed-grid a{padding:18px;min-height:125px}.speed-grid strong{font-size:34px}.speed-grid span{font-size:12px}.filter-bar{grid-template-columns:1fr}.filter-bar label{display:grid}.filter-bar label select,.filter-bar label input{width:100%}.clear-filters{justify-self:start}.detail-facts{grid-template-columns:1fr 1fr}.requirements-grid{grid-template-columns:1fr}.cta .outline-button{margin:12px 0 0}.product-media img{height:270px}}

/* 2026-10-21：横向场景图铺满首屏，文字置于左侧暗区 */
.home-hero{position:relative;isolation:isolate;display:flex;align-items:center;justify-content:flex-start;min-height:clamp(580px,37vw,720px);height:auto;padding:clamp(62px,6vw,110px) clamp(36px,7.3vw,150px);overflow:hidden;background:#071b29;text-align:left}
.home-hero>div.hero-visual{position:absolute;z-index:0;inset:0;width:100%;height:100%;max-width:none;padding:0;overflow:hidden;border-radius:0;box-shadow:none;background:#071b29}
.hero-visual>img{display:block;width:100%;height:100%;object-fit:cover;object-position:center 49%}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#03131fe8 0%,#041724cc 22%,#061b2794 41%,#061b2730 64%,transparent 82%);pointer-events:none}
.home-hero>div.hero-panel{position:relative;z-index:1;width:min(650px,50vw);max-width:none;margin:0;padding:0;background:none;border:0;border-radius:0;box-shadow:none;backdrop-filter:none}
.home-hero .eyebrow{color:#8ee0dd;margin-bottom:20px}
.home-hero h1{color:#fff;font-size:clamp(44px,3.7vw,72px);line-height:1.15;letter-spacing:-.035em;text-shadow:0 2px 18px #00121b55}
.home-hero p{color:#dcebef;font-size:clamp(17px,1.14vw,21px);line-height:1.75;max-width:36ch;margin:25px 0 32px}
.home-hero .dark-button{background:#008d91;color:#fff}
.home-hero .dark-button:hover{background:#0aa7a9}
.home-hero .outline-button{color:#fff;border-color:#c4e5e8ab;background:#071d2994}
.home-hero .outline-button:hover{background:#ffffff24}
.hero-disclosure{display:block;margin-top:36px;color:#c3d9de;font-size:12px;letter-spacing:.02em}
@media(max-width:980px){.home-hero{min-height:580px;padding:70px clamp(32px,6vw,70px)}.home-hero>div.hero-panel{width:min(610px,72vw)}.hero-visual>img{object-position:58% center}.hero-visual::after{background:linear-gradient(90deg,#03131fee 0%,#041724d8 43%,#061b2755 78%,#061b2720 100%)}}
@media(max-width:640px){.home-hero{min-height:600px;padding:56px 24px;align-items:flex-end}.home-hero>div.hero-panel{width:100%;padding:0}.hero-visual>img{object-position:67% center}.hero-visual::after{background:linear-gradient(0deg,#03131ff7 0%,#03131fe6 42%,#03131f83 72%,#03131f36 100%)}.home-hero .eyebrow{font-size:11px;margin-bottom:16px}.home-hero h1{font-size:clamp(36px,10vw,46px);line-height:1.2}.home-hero p{font-size:15px;line-height:1.65;max-width:36ch;margin:19px 0 25px}.hero-actions{gap:10px}.hero-actions a{min-height:45px}.hero-disclosure{margin-top:26px}}

/* 公开产品的距离对照：图片、型号与链路条件保持同一视线 */
.reach-section{background:#f1f7f7;padding-top:76px;padding-bottom:74px}
.reach-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.reach-card{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(120px,.9fr);min-height:246px;overflow:hidden;border:1px solid #d7e6e7;border-radius:16px;background:#fff;box-shadow:0 8px 25px #163e4010;transition:transform .2s,box-shadow .2s}
.reach-card:hover{transform:translateY(-3px);box-shadow:0 16px 35px #163e401b}
.reach-copy{display:flex;flex-direction:column;align-items:flex-start;padding:24px 8px 23px 25px;min-width:0}
.reach-tag{padding:5px 9px;border-radius:5px;background:#e4f3f2;color:var(--teal);font-size:11px;font-weight:700;letter-spacing:.03em}
.reach-copy>strong{color:var(--ink);font-size:clamp(28px,2.35vw,44px);line-height:1.05;letter-spacing:-.04em;margin:18px 0 12px}
.reach-copy h3{color:#213d42;font-size:15px;line-height:1.4;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.reach-copy p{font-size:12px;color:#687e83;margin:9px 0 0}
.reach-link{font-size:12px;font-weight:700;color:var(--teal);margin-top:auto;padding-top:16px}
.reach-card>img{width:100%;height:100%;max-height:270px;object-fit:contain;object-position:center;background:radial-gradient(circle at 48% 52%,#fff 0%,#f7fbfb 72%);padding:18px 12px}
.reach-note{color:#698086;font-size:12px;line-height:1.6;margin:18px 0 0}
@media(max-width:1200px){.reach-grid{grid-template-columns:1fr 1fr}.reach-card{min-height:226px}}
@media(max-width:760px){.reach-grid{grid-template-columns:1fr}.reach-card{min-height:206px}.reach-card>img{max-height:225px}}
@media(max-width:640px){.reach-section{padding-top:56px;padding-bottom:54px}.reach-card{grid-template-columns:minmax(0,1.1fr) minmax(115px,.9fr)}.reach-copy{padding:18px 4px 18px 19px}.reach-copy>strong{font-size:31px;margin:13px 0 8px}.reach-copy h3{font-size:13px}.reach-card>img{padding:12px 8px}}

/* 速率入口与下方型号卡统一使用真实产品图 */
.speed-grid>a.speed-card{display:grid;grid-template-columns:minmax(0,52%) minmax(0,48%);align-items:stretch;min-height:230px;padding:0;overflow:hidden}
.speed-copy{display:flex;flex-direction:column;align-items:flex-start;min-width:0;padding:30px 8px 28px 28px}
.speed-copy strong{font-size:clamp(38px,3vw,54px)}
.speed-copy small{margin-top:12px}
.speed-copy .speed-link{margin-top:auto;padding-top:16px;font-size:13px}
.speed-visual{position:relative;min-width:0;overflow:hidden;background:#f8fbfb}
.speed-visual img{display:block;width:100%;height:100%;object-fit:cover;object-position:center 65%;transform:scale(1.4);transition:transform .25s}
.speed-card:hover .speed-visual img{transform:scale(1.47)}
.speed-grid .speed-image-label{position:absolute;right:12px;bottom:12px;padding:5px 8px;border-radius:4px;background:#ffffffeb;color:#60777b;font-size:10px;font-weight:600;white-space:nowrap}
@media(max-width:640px){.speed-grid{grid-template-columns:1fr}.speed-grid>a.speed-card{min-height:176px;padding:0}.speed-copy{padding:24px 6px 22px 22px}.speed-copy strong{font-size:40px}.speed-visual img{object-position:center 66%}}

/* 速率与距离两段共用左标题、右产品的阅读结构 */
.feature-layout{display:grid;grid-template-columns:minmax(245px,16vw) minmax(0,1fr);gap:clamp(28px,3vw,64px);align-items:start}
.feature-intro{display:flex;flex-direction:column;align-items:flex-start;min-width:0;min-height:246px}
.feature-intro .eyebrow{margin-bottom:16px}
.feature-intro h2{margin:0;color:var(--ink);font-size:clamp(31px,2.2vw,42px);line-height:1.2;letter-spacing:-.035em}
.feature-intro p{max-width:30ch;margin:18px 0 0;color:var(--muted);font-size:14px;line-height:1.7}
.feature-intro .text-link{margin-top:auto;padding-top:22px}
.feature-content{min-width:0}
.feature-content .speed-grid,.feature-content .reach-grid{margin:0}
@media(max-width:1350px){.feature-layout{grid-template-columns:1fr;gap:25px}.feature-intro{min-height:0}.feature-intro h2 br{display:none}.feature-intro .text-link{margin-top:14px;padding-top:0}}
@media(max-width:640px){.feature-layout{gap:20px}.feature-intro h2{font-size:32px}.feature-intro p{max-width:none}}

/* 选型要点沿用左标题、右内容的首页节奏 */
.selection-section .adv-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.selection-section .adv-card{min-height:180px;padding:24px 18px}
.selection-section .feature-intro{min-height:180px}
@media(max-width:1600px){.selection-section .adv-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.selection-section .adv-card{min-height:150px}}
@media(max-width:1350px){.selection-section .feature-intro{min-height:0}}
@media(max-width:640px){.selection-section .adv-grid{grid-template-columns:1fr}.selection-section .adv-card{min-height:0;padding:22px}}

/* 重点产品：左侧导语与右侧横向产品列同高起始 */
.featured-section .product-scroller{margin:-8px 0 -8px}
.featured-section .product-card{width:clamp(260px,23%,320px);min-width:clamp(260px,23%,320px)}
.featured-section .feature-intro{min-height:420px}
@media(max-width:1350px){.featured-section .feature-intro{min-height:0}}
@media(max-width:640px){.featured-section .product-card{width:min(78vw,300px);min-width:min(78vw,300px)}}

/* 补充场景、代表型号与内页延伸阅读；示意图与产品原图分开展示 */
.application-section{padding:0;background:#092b35;color:#fff}
.application-layout{display:grid;grid-template-columns:minmax(320px,42%) minmax(0,58%);align-items:stretch;max-width:none;padding:0;min-height:430px}
.application-copy{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;padding:clamp(40px,5vw,84px) clamp(28px,5vw,92px)}
.application-copy .eyebrow{color:#8ee0dd}
.application-copy h2{font-size:clamp(30px,2.8vw,48px);line-height:1.2;margin:0;max-width:15ch;color:#fff}
.application-copy p{color:#d4e5e7;line-height:1.8;max-width:43ch;margin:22px 0}
.application-copy .text-link{color:#8ee0dd}
.application-copy small{display:block;color:#b2c8cc;line-height:1.6;margin-top:28px;max-width:52ch}
.application-layout>img{display:block;width:100%;height:100%;min-height:430px;object-fit:cover;object-position:65% center}
.series-showcase-grid,.related-grid,.selection-example-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.series-showcase-card{display:block;border:1px solid var(--line);border-radius:14px;background:#fff;overflow:hidden;color:inherit;transition:transform .2s,border-color .2s}
.series-showcase-card:hover{transform:translateY(-3px);border-color:#8bbebd}
.series-showcase-card>img{display:block;width:100%;height:220px;object-fit:contain;background:#f8fbfb;padding:15px}
.series-showcase-card>div{padding:19px 21px 23px}
.series-showcase-card .eyebrow{font-size:11px;margin-bottom:8px}
.series-showcase-card h3{font-size:16px;line-height:1.5;min-height:72px;margin:0 0 10px;color:var(--ink)}
.series-showcase-card p{font-size:13px;line-height:1.6;color:var(--muted);margin:0 0 13px}
.related-section{padding:58px 0 76px}
.related-section .product-card{min-width:0;width:auto}
.selection-examples-section{background:#f1f7f7}
.selection-example>.reach-card{height:100%}
@media(max-width:1100px){.application-layout{grid-template-columns:1fr 1fr}.series-showcase-grid,.related-grid,.selection-example-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.selection-example-grid>.selection-example:last-child{grid-column:1/-1}}
@media(max-width:700px){.application-layout{grid-template-columns:1fr}.application-copy{padding:48px 22px}.application-layout>img{min-height:260px;max-height:300px}.series-showcase-grid,.related-grid,.selection-example-grid{grid-template-columns:1fr}.selection-example-grid>.selection-example:last-child{grid-column:auto}.related-section{padding:44px 0 58px}.series-showcase-card h3{min-height:0}}

/* 截图复核：让招聘页首屏先呈现可读内容。 */
main:has(.job-grid) .page-hero{padding-block:42px 44px}
.job-grid{padding-block:36px 42px;gap:18px}
.job-card{min-height:108px;box-shadow:none;transition:border-color .2s,transform .2s}
.job-card:hover{border-color:#89b9b8;transform:translateY(-2px)}
.job-card small{display:block;line-height:1.5}
.career-article .article-note{margin:24px 0 30px}
.career-article h2{font-size:22px;margin:30px 0 16px;color:var(--ink)}
.job-bullets{margin:0;padding-left:24px;color:#53676d;line-height:1.75}
.job-bullets li{padding-left:5px;margin:0 0 12px}
.job-bullets li::marker{color:var(--teal)}
@media(max-width:640px){main:has(.job-grid) .page-hero{padding-block:38px 40px}}
@media(max-width:640px){.page-hero .metrics{gap:8px}.page-hero .metric{min-width:0;flex:1 1 80px;padding:10px 6px}}

/* Authenticity pass: verified supplier imagery and text-only location cards. */
.hero-visual>img{object-position:center 54%}

/* Bilingual public release: a model-specific supplier photo replaces the campus hero. */
.lang-switch{display:inline-flex;align-items:center;justify-content:center;min-width:57px;min-height:36px;padding:6px 11px;border:1px solid #c7dedf;border-radius:8px;color:#075f62;background:#f1f8f7;font-size:13px;font-weight:700;white-space:nowrap}
.lang-switch:hover,.lang-switch:focus-visible{background:#dcefed;outline:2px solid #b1d9d5;outline-offset:2px}
.home-hero{background:#eff6f5;min-height:clamp(570px,37vw,700px);padding:clamp(58px,6vw,104px) clamp(36px,7.3vw,150px)}
.home-hero>div.hero-visual{inset:0 0 0 47%;width:53%;height:100%;background:#fff}
.hero-visual>img{object-fit:cover;object-position:center 70%}
.hero-visual::after{background:linear-gradient(90deg,#eff6f5 0%,#eff6f5c8 8%,#eff6f500 24%)}
.home-hero>div.hero-panel{width:min(650px,48vw)}
.home-hero .eyebrow{color:#087e80}
.home-hero h1{color:#082d37;text-shadow:none}
.home-hero p{color:#44616b}
.home-hero .outline-button{color:#075f62;border-color:#79b3b3;background:#fff}
.home-hero .outline-button:hover{background:#e4f4f2}
.hero-disclosure{color:#577079}
@media(max-width:900px){.home-hero>div.hero-panel{width:min(590px,60vw)}.home-hero>div.hero-visual{left:48%;width:52%}}
@media(max-width:640px){
  .lang-switch{min-width:45px;min-height:34px;margin-left:7px;padding:5px 8px;font-size:12px}
  .site-header{gap:4px}
  .mobile-menu{margin-left:auto}
  .home-hero{display:flex;flex-direction:column;align-items:stretch;min-height:0;padding:0;background:#eff6f5}
  .home-hero>div.hero-visual{position:relative;inset:auto;width:100%;height:230px;flex:none}
  .hero-visual>img{object-position:center 68%}
  .hero-visual::after{display:none}
  .home-hero>div.hero-panel{width:100%;padding:27px 23px 35px}
  .home-hero h1{font-size:clamp(34px,9vw,43px)}
  .home-hero p{margin:17px 0 21px}
  .hero-disclosure{margin-top:22px}
}
.application-layout>img{background:#fff;object-fit:contain;object-position:center;padding:clamp(20px,3vw,48px)}
.product-media img{opacity:1;background:#fff}
.base-grid>div{min-height:155px;padding:26px;border:1px solid #dbe6e8;border-radius:12px;background:#f6faf9;display:flex;flex-direction:column;justify-content:space-between}
.base-grid>div strong{font-size:23px;color:#072c35}
.base-grid>div span{font-size:14px;color:#5e7074;line-height:1.6}
@media(max-width:640px){.application-layout>img{min-height:260px;max-height:320px}.base-grid>div{min-height:132px;padding:18px}}
@media(min-width:701px){.application-layout{height:clamp(430px,33vw,620px);min-height:0}.application-layout>img{height:100%;min-height:0}}
@media(max-width:700px){.application-layout>img{height:280px;min-height:0}}