:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;color:#0b1930;background:#fff;--ink:#0b1930;--blue:#0345b7;--cyan:#00a9ef;--sub:#4d6077;--light:#f4f6fa;--rule:#dce4ee;--width:1200px;--gutter:clamp(22px,5vw,76px);font-synthesis:none}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:85px}
body{margin:0}
img{display:block;max-width:100%}
a{color:var(--blue);text-underline-offset:.2em;text-decoration-thickness:.08em}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
button,a,input,select,textarea{ -webkit-tap-highlight-color:transparent}
:focus-visible{outline:3px solid #1789df;outline-offset:4px}
h1,h2,h3,p{margin:0}
.wrap{width:min(var(--width),calc(100% - var(--gutter)*2));margin-inline:auto}
.skip{position:fixed;top:12px;left:16px;z-index:10;padding:10px 16px;background:white;transform:translateY(-200%)}
.skip:focus{transform:translateY(0)}
.topbar{position:sticky;top:0;z-index:5;background:#ffffffea;border-bottom:1px solid #dce4eea6;backdrop-filter:blur(15px)}
.nav{min-height:67px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;gap:8px;align-items:center;flex-shrink:0;text-decoration:none;color:var(--ink);font-size:18px;font-weight:780;line-height:1.08}
.brand img{width:34px;height:31px}
.brand small{display:block;font-size:7px;font-weight:750;letter-spacing:.075em;margin-top:3px}
.nav nav{display:flex;gap:clamp(22px,3.5vw,48px);align-items:center}
.nav nav a{font-size:14px;text-decoration:none;color:#293b52;white-space:nowrap}
.nav nav a:hover{color:var(--blue);text-decoration:underline}
.button{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:100px;padding:0 22px;border:1px solid transparent;background:var(--blue);color:white;font-size:15px;font-weight:680;line-height:1.15;text-decoration:none;transition:background .18s,color .18s,border-color .18s}
.button:hover{background:#063989}
.button-small{min-height:37px;font-size:13px;padding:0 16px;white-space:nowrap}
.button-light{background:transparent;color:var(--blue);border-color:#b5c8e6}
.button-light:hover{background:#e7effc;border-color:#90aedd}
.button-white{background:white;color:var(--blue)}
.button-white:hover{background:#dbeaff}
.hero{position:relative;text-align:center;background:radial-gradient(ellipse at 50% 70%,#eef3fb 0,#f6f8fb 60%,#f9fafc 100%);overflow:hidden;isolation:isolate}
.hero-copy{position:relative;z-index:1;padding-top:clamp(47px,7.3vh,85px)}
.eyebrow{font-size:12px;font-weight:760;letter-spacing:.145em;color:var(--blue);line-height:1.5}
.hero h1{font-size:clamp(38px,6.15vw,88px);line-height:1.14;font-weight:830;letter-spacing:-.075em;text-wrap:balance}
.hero-sub{font-size:clamp(15px,1.65vw,23px);color:#3c526e;margin:18px auto 0;line-height:1.55}
.actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:25px}
.hero-visual{height:clamp(268px,34.5vw,452px);max-width:810px;position:relative;margin:0 auto}
.hero-visual img{width:100%;height:100%;object-fit:cover;object-position:center 50%;mask-image:linear-gradient(transparent,#000 10%,#000 90%,transparent),linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);mask-composite:intersect;mix-blend-mode:multiply}
.hero-caption{min-height:45px;display:flex;align-items:center;justify-content:space-between;border-top:1px solid #dce5f1;font-size:11px;letter-spacing:.04em;color:#52637a;text-align:left;gap:15px}
.featured,.applications{padding-block:clamp(62px,8vw,112px)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:29px}
.section-head h2,.contact h2{font-size:clamp(32px,4.4vw,57px);line-height:1.13;font-weight:800;letter-spacing:-.06em}
.section-head>p,.contact p:not(.eyebrow){font-size:16px;color:var(--sub);line-height:1.65}
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.feature{position:relative;isolation:isolate;min-height:414px;overflow:hidden;border-radius:20px;padding:29px 30px}
.feature img{position:absolute;z-index:-2;width:100%;height:100%;inset:0;object-fit:cover;object-position:center}
.feature::before{content:"";position:absolute;z-index:-1;inset:0}
.feature-dark{background:#071323;color:#fff}
.feature-dark::before{background:linear-gradient(180deg,#070f1cea 0%,#070f1c99 34%,#070f1c00 73%)}
.feature-light{background:#0d2441;color:#fff}
.feature-light::before{background:linear-gradient(128deg,#041326 0%,#041326e5 29%,#04132605 80%)}
.feature .eyebrow,.feature a{color:#a4d6ff}
.feature h3{font-size:clamp(25px,3vw,41px);letter-spacing:-.055em;margin:5px 0 8px}
.feature p:not(.eyebrow){font-size:15px;color:#e0ebfa;line-height:1.5}
.feature a{display:inline-block;margin-top:18px;font-size:14px;font-weight:680;text-decoration:none}
.feature a:hover{text-decoration:underline}
.image-note{position:absolute;right:20px;bottom:16px;color:#e7eef7;font-size:10px;text-shadow:0 0 6px #00172f}
.product-section{background:var(--light);padding-block:clamp(64px,8vw,104px)}
.catalog{display:grid;grid-template-columns:222px minmax(0,1fr);border:1px solid var(--rule);border-radius:22px;background:#fff;overflow:hidden}
.catalog-sidebar{background:#f8fafc;border-right:1px solid var(--rule);padding:26px 13px}
.sidebar-label{margin:0 13px 12px;font-size:12px;color:var(--sub);font-weight:750}
.category-list{display:grid;gap:4px}
.category-list button{min-height:41px;border:0;text-align:left;border-radius:9px;padding:8px 12px;background:transparent;color:var(--sub);font-size:14px}
.category-list button:hover{background:#ecf2fb;color:var(--blue)}
.category-list button[aria-pressed=true]{background:#e7f0ff;color:#003a9e;font-weight:750}
.mobile-filter{display:none}
.catalog-main{padding:clamp(18px,3.3vw,36px);min-width:0}
.searchbox{display:flex;gap:10px;align-items:center;padding:0 15px;min-height:49px;border:1px solid #cbd8e9;border-radius:11px;color:var(--sub);background:#fff}
.searchbox:focus-within{border-color:var(--blue);outline:2px solid #c4deff}
.searchbox input{width:100%;border:0;outline:0;padding:8px 0;background:transparent;color:var(--ink);font-size:15px;min-width:0}
.catalog-intro{padding:20px 0 17px}
.catalog-intro h3{font-size:23px;letter-spacing:-.04em;margin-bottom:4px}
.catalog-intro p,.catalog-note{color:var(--sub);font-size:13px;line-height:1.6}
.family-list{display:grid;grid-template-columns:1fr 1fr;gap:9px;list-style:none;margin:0;padding:0}
.family-list button{display:flex;justify-content:space-between;gap:8px;align-items:center;width:100%;min-height:45px;border:1px solid #e1e7f0;border-radius:10px;background:#f8fafc;color:var(--ink);text-align:left;padding:8px 12px;font-size:14px;font-weight:620}
.family-list button:hover{background:#eaf2ff;color:var(--blue)}
.family-list button span{color:var(--blue)}
.parts{width:100%;border-collapse:collapse;font-size:14px}
.parts th{background:#f5f8fc;color:var(--sub);font-size:12px;text-align:left}
.parts th,.parts td{padding:10px 10px;border-bottom:1px solid #e4ebf3;vertical-align:middle}
.parts th:first-child{border-radius:7px 0 0 0}
.parts th:last-child{border-radius:0 7px 0 0}
.parts td:first-child{font-weight:760;color:var(--ink);overflow-wrap:anywhere}
.parts td:nth-child(2),.parts td:nth-child(3){color:var(--sub);overflow-wrap:anywhere}
.text-button{padding:5px 0;border:0;background:none;color:var(--blue);font-weight:700;white-space:nowrap}
.text-button:hover{text-decoration:underline}
.empty{padding:16px;border:1px dashed #cdd9e9;border-radius:12px;color:var(--sub);font-size:14px;line-height:1.6}
.empty .text-button{display:block}
.catalog-note{margin-top:17px}
.application-list{border-top:1px solid var(--rule)}
.application-list article{display:grid;grid-template-columns:56px 1fr auto;gap:14px;align-items:center;min-height:102px;border-bottom:1px solid var(--rule);padding:17px 4px}
.item-index{font-size:13px;color:var(--blue);font-weight:740}
.application-list h3{font-size:22px;letter-spacing:-.04em;margin-bottom:5px}
.application-list p{font-size:14px;color:var(--sub);line-height:1.6}
.circle-link{display:inline-grid;place-items:center;width:39px;height:39px;border-radius:50%;border:1px solid #cddcf1;color:var(--blue);text-decoration:none;background:#fff}
.circle-link:hover{background:#eaf2ff}
.contact{background:radial-gradient(ellipse at 90% 0,#154283 0,#10274d 42%,#0b1930 100%);color:white;padding:68px 0}
.contact-inner{display:grid;grid-template-columns:1fr auto;gap:32px;align-items:end}
.contact .eyebrow{color:#8dc8ff}
.contact h2{margin-bottom:16px}
.contact p:not(.eyebrow){color:#d0def1;max-width:530px}
.contact-actions{display:grid;justify-items:start;gap:16px;padding:0 0 3px}
.contact-methods{display:grid;gap:9px;padding-left:9px}
.contact-mail,.contact-phone{color:white;font-size:14px}
.contact-mail{text-decoration:none}
.contact-mail:hover{text-decoration:underline}
.footer{display:grid;grid-template-columns:1fr auto;gap:18px;align-items:center;padding:31px 0 22px}
.footer-brand{width:min(292px,100%);height:auto}
.footer div{display:flex;gap:18px;flex-wrap:wrap}
.footer a{font-size:13px;text-decoration:none}
.footer a:hover{text-decoration:underline}
.footer p{grid-column:1/-1;border-top:1px solid var(--rule);padding-top:13px;font-size:12px;color:var(--sub)}
dialog{border:1px solid var(--rule);border-radius:22px;color:var(--ink);padding:0;width:min(620px,calc(100% - 26px));max-height:calc(100dvh - 26px)}
dialog::backdrop{background:#0617299e;backdrop-filter:blur(5px)}
.dialog-inner{padding:clamp(19px,5vw,34px)}
.dialog-head{display:flex;justify-content:space-between;gap:16px}
.dialog-head h2{font-size:34px;letter-spacing:-.055em;margin-top:4px}
.close{font-size:24px;line-height:1;flex-shrink:0}
.dialog-description{margin:12px 0 20px;color:var(--sub);line-height:1.6;font-size:14px}
#inquiry-form{display:grid;grid-template-columns:1fr 1fr;gap:14px}
#inquiry-form label{display:grid;gap:6px;font-size:13px;font-weight:680;min-width:0}
#inquiry-form input,#inquiry-form select,#inquiry-form textarea,.mobile-filter select{width:100%;border-radius:8px;border:1px solid #cad8eb;background:#f8fafc;color:var(--ink);padding:9px 10px;font-size:16px}
#inquiry-form textarea{resize:vertical}
.wide{grid-column:1/-1}
.form-actions{display:flex;flex-wrap:wrap;gap:8px}
.form-status{font-size:13px;color:var(--blue);min-height:18px}
@media(max-width:780px){
  html{scroll-padding-top:110px}
  .nav{display:grid;grid-template-columns:1fr auto;column-gap:8px;row-gap:0;padding-top:9px}
  .nav nav{grid-row:2;grid-column:1/-1;justify-content:space-between;gap:12px;padding:9px 1px 10px}
  .nav .button{justify-self:end}
  .hero-copy{padding-top:45px}
  .hero-visual{height:clamp(242px,49vw,360px);margin-top:3px}
  .hero-visual img{object-position:center 54%}
  .section-head{align-items:start;flex-direction:column;gap:10px;margin-bottom:21px}
  .section-head>p br{display:none}
  .feature{min-height:330px;padding:22px 20px}
  .catalog{grid-template-columns:1fr}
  .catalog-sidebar{padding:13px 17px;border-right:0;border-bottom:1px solid var(--rule)}
  .category-list,.sidebar-label{display:none}
  .mobile-filter{display:grid;gap:5px;color:var(--sub);font-size:12px;font-weight:720}
  .footer{grid-template-columns:1fr}
}
@media(max-width:520px){
  .hero h1{font-size:clamp(35px,8.25vw,45px);letter-spacing:-.075em}
  .hero-sub{margin-top:14px}
  .hero-caption{font-size:10px}
  .feature-grid{grid-template-columns:1fr}
  .feature{min-height:322px}
  .parts th,.parts td{padding-inline:5px;font-size:12px}
  .parts td:nth-child(2){min-width:62px}
  .catalog-main{padding:16px}
  .family-list button{font-size:13px}
  .application-list article{grid-template-columns:26px 1fr auto;gap:8px}
  .contact-inner{grid-template-columns:1fr;gap:21px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}}

.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.brand-picker{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:8px;margin-bottom:15px}
.brand-picker button{min-height:75px;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;gap:6px;padding:10px 12px;border:1px solid var(--rule);border-radius:13px;background:#fff;text-align:left;color:var(--ink);font-size:15px;font-weight:750;line-height:1.28}
.brand-picker button small{font-size:9px;color:var(--sub);letter-spacing:.07em;white-space:nowrap}
.brand-picker button:hover{background:#eaf2ff}
.brand-picker button[aria-pressed=true]{background:#e7f0ff;border-color:#9cbff3;color:#003a9e}
.brand-picker button[aria-pressed=true] small{color:#17447e}
.parts td:first-child small{display:block;color:var(--sub);font-size:10px;line-height:1.45;margin-top:3px;font-weight:550}
.contact address{display:flex;flex-wrap:wrap;gap:7px 19px;margin-top:17px;color:#d7e7fb;font-size:14px;font-style:normal}
#inquiry-form textarea{min-height:76px}
@media(max-width:980px){.brand-picker{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:520px){.brand-picker{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}.brand-picker button{font-size:13px;min-height:60px;padding:8px}}

[hidden]{display:none!important}
#inquiry-form label small{font-size:11px;color:var(--sub);font-weight:500;margin-left:4px}
#inquiry-form .consent{display:flex;align-items:flex-start;gap:9px;line-height:1.55}
#inquiry-form .consent input{width:16px;height:16px;flex:0 0 16px;margin:2px 0 0;accent-color:var(--blue)}
#inquiry-form .consent small{display:block;margin:2px 0 0;line-height:1.4}
.dialog-description span,.privacy-copy{color:var(--sub);font-size:12px;line-height:1.65}
.rfq-trap{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.button:disabled{opacity:.68;cursor:wait}
.rfq-receipt{padding:26px 0 4px}
.rfq-receipt h3{font-size:31px;margin:6px 0 9px}
.rfq-receipt p:not(.eyebrow){color:var(--sub);line-height:1.55}
.rfq-receipt output{display:block;margin:15px 0 19px;font:700 16px ui-monospace,monospace;color:var(--blue);overflow-wrap:anywhere}
.inbox-body{background:var(--light)}
.inbox-wrap{padding:24px 0 50px;max-width:920px}
.inbox-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:24px;margin-bottom:31px;border-bottom:1px solid var(--rule)}
.inbox-header .brand{line-height:1.3}
.inbox-wrap h1{font-size:clamp(31px,6vw,48px);margin:5px 0 9px}
.inbox-wrap>p:not(.eyebrow){color:var(--sub);margin-bottom:17px}
.inbox-item{background:#fff;padding:18px;border:1px solid var(--rule);border-radius:13px;margin-bottom:12px;overflow-wrap:anywhere}
.inbox-item header{display:flex;justify-content:space-between;align-items:flex-start;gap:9px;flex-wrap:wrap}
.inbox-item h2{font-size:20px}
.inbox-item code,.inbox-item time,.inbox-item dt{color:var(--sub);font-size:12px}
.inbox-item dl{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(150px,100%),1fr));gap:13px;margin:16px 0}
.inbox-item dd{margin:4px 0 0;font-size:14px}
.inbox-details{white-space:pre-wrap;border-top:1px solid var(--rule);padding-top:13px;font-size:14px;line-height:1.55}
.inbox-pagination{display:flex;gap:18px;align-items:center;padding-top:14px;color:var(--sub)}
@media(max-width:380px){#inquiry-form{gap:11px 9px}.dialog-inner{padding:16px}#inquiry-form label small{display:block;margin-left:0}}
#inquiry-form input,#inquiry-form select,#inquiry-form textarea{font-weight:400}
#inquiry-form input::placeholder,#inquiry-form textarea::placeholder{color:#607089}

.product-detail{padding-block:clamp(30px,5.4vw,74px) clamp(54px,8vw,104px)}
.product-back{font-size:14px;font-weight:680;text-decoration:none}
.product-back:hover{text-decoration:underline}
.product-heading{margin:24px 0 26px}
.product-heading h1{font-size:clamp(38px,7.3vw,78px);line-height:1.13;letter-spacing:-.055em;margin:7px 0;overflow-wrap:anywhere}
.product-heading>p:not(.eyebrow),.product-detail>p{color:var(--sub);line-height:1.65}
.product-detail>.button{margin-top:20px}
.product-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(245px,1fr);align-items:start;gap:16px}
.product-panel{border:1px solid var(--rule);border-radius:18px;padding:clamp(17px,3vw,30px)}
.product-panel h2{font-size:24px;margin-bottom:11px}
.product-values{margin:0}
.product-values>div{display:grid;grid-template-columns:minmax(100px,37%) 1fr;gap:12px;padding:10px 0;border-top:1px solid var(--rule);line-height:1.5;font-size:14px}
.product-values dt{color:var(--sub)}
.product-values dd{margin:0;font-weight:650;overflow-wrap:anywhere}
.product-note{margin-top:13px;color:var(--sub);font-size:13px;line-height:1.65}
.product-contact{background:var(--light)}
.product-contact p{color:var(--sub);font-size:14px;line-height:1.65;margin-bottom:17px}
.product-footer{border-top:1px solid var(--rule);padding-block:15px 25px;display:flex;justify-content:space-between;gap:10px;color:var(--sub);font-size:13px}
@media(max-width:680px){.product-grid{grid-template-columns:1fr}}

.wechat-contact{position:absolute;z-index:2;right:clamp(20px,3vw,52px);top:54%;width:185px;text-align:left;background:white;border:1px solid var(--rule);border-radius:14px;box-shadow:0 6px 24px #223c6914}
.wechat-contact summary{cursor:pointer;padding:12px 14px;color:var(--blue);font-size:14px;font-weight:750}
.wechat-content{padding:0 10px 11px;text-align:center}
.wechat-content img{width:100%;height:auto;aspect-ratio:1;object-fit:cover;object-position:center 61%}
.wechat-content p{font-size:12px;line-height:1.45;color:var(--sub)}
@media(max-width:1199px){
  .wechat-contact{position:relative;inset:auto;width:185px;max-width:calc(100% - var(--gutter)*2);margin:0 var(--gutter) 12px auto}
  .wechat-contact:not([open]){width:max-content}
}

.empty-actions{display:flex;align-items:center;flex-wrap:wrap;gap:14px;margin-top:10px}
.wechat-model{color:var(--ink);font-size:14px;font-weight:680;overflow-wrap:anywhere}
#wechat-inquiry{max-width:410px}
.wechat-qr{width:min(100%,240px);height:auto;aspect-ratio:1;object-fit:cover;object-position:center 61%;margin:8px auto 0}
.product-wechat{max-width:430px}