:root{
  --brand:#02587c;
  --brand-dark:#01435f;
  --ink:#1e293b;
  --muted:#64748b;
  --light:#f8fafc;
  --white:#ffffff;
  --line:#e5e7eb;
  --soft-line:#eef2f6;
  --max:1180px;
  --shadow:0 20px 48px rgba(15,23,42,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.72;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
.container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--soft-line)}
.nav{height:80px;display:flex;align-items:center;justify-content:space-between;gap:30px}
.brand{display:flex;align-items:center;align-self:stretch;min-width:0;flex:0 1 390px;padding-top:1px}
.brand img{display:block;width:auto;height:48px;max-width:100%;object-fit:contain;object-position:left bottom;transform:translateY(-7px)}
.nav-links{display:flex;align-items:center;gap:24px;font-size:14px;font-weight:600;color:#475569;white-space:nowrap}
.nav-links a{position:relative;padding:28px 0 25px}
.nav-links a:after{content:"";position:absolute;left:0;right:0;bottom:17px;height:2px;background:var(--brand);transform:scaleX(0);transition:.2s}
.nav-links a:hover,.nav-links a.active{color:var(--brand)}
.nav-links a:hover:after,.nav-links a.active:after{transform:scaleX(1)}
.lang-link{border:1px solid var(--brand);color:var(--brand);border-radius:999px;padding:7px 14px!important;font-size:12px;font-weight:700}
.lang-link:after{display:none}
.lang-link:hover{background:var(--brand);color:#fff}
.menu-btn{display:none;border:0;background:transparent;color:var(--brand);font-size:26px;padding:8px;cursor:pointer}
.hero{background:var(--light);padding:86px 0 88px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:70px;align-items:center}
.kicker{display:block;font-size:18px;line-height:1.35;font-weight:750;letter-spacing:.12em;text-transform:uppercase;color:var(--brand);margin-bottom:18px}
h1,h2,h3,h4,p{margin-top:0}
h1{font-size:clamp(33px,3.75vw,50px);line-height:1.12;letter-spacing:-.038em;color:var(--ink);margin-bottom:25px}
.hero h1 .brand-line{color:var(--brand)}
.hero-copy{font-size:18px;line-height:1.78;color:var(--muted);max-width:650px;margin-bottom:0}
.actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 25px;border-radius:6px;border:1px solid transparent;font-weight:650;font-size:15px;transition:.2s;cursor:pointer}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px rgba(2,88,124,.16)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px)}
.btn-secondary{background:#fff;color:var(--brand);border-color:#d7dee5}
.btn-secondary:hover{border-color:var(--brand);transform:translateY(-1px)}
.hero-visual{position:relative;padding:10px 0 10px 22px}
.hero-visual:before{content:"";position:absolute;width:78%;height:78%;right:-8%;top:-8%;background:rgba(2,88,124,.07);border-radius:50%}
.hero-visual img{position:relative;width:100%;aspect-ratio:1.22/1;object-fit:cover;border-radius:16px;border:8px solid #fff;box-shadow:var(--shadow)}
.section{padding:96px 0}
.section-light{background:var(--light)}
.section-brand{background:var(--brand);color:#fff}
.section-head{max-width:790px;margin-bottom:48px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2,.content h2,.page-hero h1{font-size:clamp(25px,2.625vw,35px);line-height:1.22;letter-spacing:-.028em;margin-bottom:18px;color:var(--ink)}
.section-head p,.content p{color:var(--muted);font-size:17px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:68px;align-items:center}
.split.reverse .media{order:2}.split.reverse .content{order:1}
.media img{width:100%;border-radius:15px;box-shadow:0 16px 38px rgba(15,23,42,.08)}
.media.product img{aspect-ratio:1/1;object-fit:cover}
.media.landscape img{aspect-ratio:1.36/1;object-fit:cover}
.content h2{margin-bottom:20px}
.feature-list{list-style:none;padding:0;margin:26px 0 0;display:grid;gap:13px}
.feature-list li{position:relative;padding-left:28px;color:#475569}
.feature-list li:before{content:"";position:absolute;left:0;top:.62em;width:13px;height:13px;border-radius:50%;background:rgba(2,88,124,.12);border:4px solid var(--brand)}
.inline-link{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-weight:700;margin-top:24px}
.inline-link:after{content:"→";transition:.2s}.inline-link:hover:after{transform:translateX(4px)}
.spec-wrap{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff;box-shadow:0 12px 30px rgba(15,23,42,.045)}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:17px 20px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:#f8fafc;color:var(--brand);font-size:13px;letter-spacing:.04em;text-transform:uppercase}
td{font-size:15px;color:#475569}
tbody tr:last-child td{border-bottom:0}
td strong{color:var(--ink)}
.spec-table th:nth-child(1),.spec-table td:nth-child(1){width:25%}
.spec-table th:nth-child(2),.spec-table td:nth-child(2){width:32%}
.spec-table th:nth-child(3),.spec-table td:nth-child(3){width:43%}
.spec-table td:nth-child(3){color:#5b6b78}
.table-note{font-size:13px;color:var(--muted);margin:16px 0 0}
.capabilities{display:grid;grid-template-columns:repeat(3,1fr);gap:36px}
.capability{padding-top:23px;border-top:2px solid var(--brand)}
.capability .num{display:block;font-size:12px;letter-spacing:.12em;color:var(--brand);font-weight:800;margin-bottom:14px}
.capability h3{font-size:22px;margin-bottom:10px;color:var(--ink)}
.capability p{color:var(--muted);margin:0}
.fact-row{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden;margin-top:50px}
.fact-row.three{grid-template-columns:repeat(3,1fr)}
.fact{background:#fff;padding:25px 22px}
.fact strong{display:block;color:var(--brand);font-size:25px;line-height:1.2;margin-bottom:6px}
.fact span{font-size:13px;color:var(--muted)}
.about-strip{display:grid;grid-template-columns:1.18fr .82fr;gap:55px;align-items:center}
.about-strip img{width:100%;aspect-ratio:1.45/1;object-fit:cover;border-radius:15px}
.about-text{padding-right:20px}
.logo-text{font-weight:800;color:var(--brand);letter-spacing:.03em}
.company-structure{margin-top:58px}.company-structure .entity-lines{margin-top:0}.entity-lines{margin-top:30px;border-top:1px solid var(--line)}
.entity-line{display:grid;grid-template-columns:190px 1fr;gap:28px;padding:22px 0;border-bottom:1px solid var(--line)}
.entity-label{font-size:12px;font-weight:750;color:var(--brand);letter-spacing:.08em;text-transform:uppercase}
.entity-line h3{font-size:18px;margin-bottom:5px}.entity-line p{font-size:15px;margin:0}
.factory-feature{position:relative}
.factory-feature img{width:100%;height:520px;object-fit:cover;border-radius:15px}
.factory-caption{background:#fff;border:1px solid var(--line);max-width:620px;margin:-84px 0 0 auto;position:relative;padding:34px 38px;border-radius:12px;box-shadow:var(--shadow)}
.factory-caption h2{font-size:34px;margin-bottom:12px}.factory-caption p{color:var(--muted);margin-bottom:0}
.cta-row{display:flex;justify-content:space-between;align-items:center;gap:50px}
.cta-row h2{font-size:36px;line-height:1.2;margin-bottom:10px;color:#fff}.cta-row p{color:#d5e7ef;margin:0;max-width:680px}
.section-brand .btn-secondary{border-color:#fff;color:#fff;background:transparent}.section-brand .btn-secondary:hover{background:#fff;color:var(--brand)}
.page-hero{background:var(--light);padding:66px 0 70px;border-bottom:1px solid var(--soft-line)}
.page-hero h1{margin-bottom:16px}
.page-hero p{max-width:760px;color:var(--muted);font-size:18px;margin:0}
.page-hero p.wide-copy{max-width:none}
.breadcrumb{font-size:18px;line-height:1.5;color:#94a3b8;margin-bottom:20px}.breadcrumb a{color:var(--brand)}
.timeline{border-top:1px solid var(--line)}
.timeline-item{display:grid;grid-template-columns:155px 1fr;gap:30px;padding:26px 0;border-bottom:1px solid var(--line)}
.timeline-item time{font-weight:750;color:var(--brand)}.timeline-item h3{font-size:19px;margin-bottom:5px}.timeline-item p{font-size:15px;margin:0}
.investors{display:flex;flex-wrap:wrap;align-items:stretch;gap:14px;margin-top:26px}.investor-logo{width:168px;height:76px;padding:8px 10px;border:1px solid var(--line);border-radius:6px;background:#fff;display:flex;align-items:center;justify-content:center}.investor-logo img{display:block;max-width:100%;max-height:58px;width:auto;height:auto;object-fit:contain}
.quality-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px 34px}
.quality-item{padding:22px 0 0;border-top:1px solid #cbd5e1}.quality-code{font-size:12px;color:var(--brand);font-weight:800;letter-spacing:.1em}.quality-item h3{font-size:20px;margin:10px 0 7px}.quality-item p{font-size:15px;color:var(--muted);margin:0}
.analysis-panel{display:grid;grid-template-columns:.82fr 1.18fr;gap:56px;align-items:center}
.analysis-panel img{width:100%;border:1px solid var(--line);border-radius:14px;background:#fff}
.tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px}.tag{font-size:12px;color:var(--brand);background:#eef7fa;padding:6px 10px;border-radius:4px;font-weight:700}
.notice{margin-top:22px;padding:17px 20px;background:#f1f7fa;border-left:3px solid var(--brand);color:#5b6b78;font-size:14px}
.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:58px;align-items:start}
.contact-info{padding-right:20px}.contact-info h2{font-size:34px;margin-bottom:16px}.contact-info p{color:var(--muted)}
.contact-list{margin-top:28px;border-top:1px solid var(--line)}
.contact-item{padding:19px 0;border-bottom:1px solid var(--line)}
.contact-item small{display:block;color:#94a3b8;font-size:12px;margin-bottom:4px}.contact-item a,.contact-item span{font-size:17px;color:var(--ink)}
.qr-row{display:flex;align-items:center;gap:18px;margin-top:26px}.qr-row img{width:132px;border:1px solid var(--line);border-radius:8px}.qr-row p{font-size:14px;margin:0}
.form-card{border:1px solid var(--line);border-radius:14px;padding:36px;background:#fff;box-shadow:0 14px 34px rgba(15,23,42,.055)}
.form-card h2{font-size:30px;margin-bottom:8px}.form-card>p{font-size:14px;color:var(--muted);margin-bottom:28px}
.legacy-form form{display:grid;gap:24px;margin-top:22px}.legacy-field{display:flex;flex-direction:column;gap:8px}.legacy-field label{font-size:13px;font-weight:750;color:var(--brand);letter-spacing:.04em}.legacy-field input,.legacy-field textarea{width:100%;border:0;border-bottom:1px solid #cfd8e3;border-radius:0;padding:10px 2px;color:var(--ink);background:transparent;outline:none}.legacy-field input:focus,.legacy-field textarea:focus{border-bottom-color:var(--brand);box-shadow:none}.legacy-field textarea{resize:vertical}.legacy-submit{width:100%;margin-top:4px}

.formspree-status{display:none;margin-top:12px;padding:10px 12px;border-radius:5px;font-size:13px;line-height:1.5}
.formspree-status.show{display:block}
.formspree-status.error{background:#fff1f2;color:#9f1239;border:1px solid #fecdd3}
.formspree-hp{position:absolute!important;left:-9999px!important;width:1px!important;height:1px!important;overflow:hidden!important}

.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:7px}.field.full{grid-column:1/-1}.field label{font-size:13px;font-weight:650;color:#475569}
.field input,.field select,.field textarea{width:100%;border:1px solid #d8dee6;border-radius:5px;padding:12px 13px;color:var(--ink);background:#fff;outline:none}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(2,88,124,.08)}
.consent{display:flex;align-items:flex-start;gap:9px;margin:18px 0;font-size:12px;color:var(--muted)}.consent a{color:var(--brand)}.form-note{font-size:12px!important;margin:10px 0 0!important}
.privacy{max-width:850px}.privacy h2{font-size:25px;margin:38px 0 10px}.privacy p,.privacy li{color:var(--muted)}
.site-footer{background:#0f172a;color:#94a3b8;padding:52px 0 24px}
.footer-main{display:flex;justify-content:space-between;gap:50px;align-items:flex-start}
.footer-brand{max-width:460px}.footer-wordmark{font-size:24px;letter-spacing:-.03em;font-weight:800;color:#fff}.footer-brand p{font-size:14px;margin:12px 0 0}
.footer-links{display:flex;gap:52px}.footer-col h4{color:#fff;font-size:13px;margin-bottom:12px}.footer-col a{display:block;font-size:13px;margin:7px 0}.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.09);padding-top:20px;margin-top:38px;font-size:12px}
@media(max-width:980px){
  .brand{flex-basis:360px}.nav-links{display:none}.menu-btn{display:block}.nav.open{height:auto;min-height:80px;flex-wrap:wrap;padding-bottom:18px}.nav.open .nav-links{display:flex;flex-basis:100%;flex-direction:column;align-items:flex-start;gap:0}.nav.open .nav-links a{padding:9px 0}.nav.open .nav-links a:after{display:none}.nav.open .lang-link{margin-top:6px;padding:7px 14px!important}
  .hero-grid,.split,.about-strip,.analysis-panel,.contact-grid{grid-template-columns:1fr}.hero-visual{padding-left:0}.split.reverse .media,.split.reverse .content{order:initial}.capabilities,.quality-grid{grid-template-columns:repeat(2,1fr)}.fact-row{grid-template-columns:repeat(2,1fr)}.fact-row.three{grid-template-columns:repeat(2,1fr)}.factory-feature img{height:430px}.factory-caption{margin:-54px 25px 0}.footer-main{flex-direction:column}.footer-links{width:100%;justify-content:space-between}
}
@media(max-width:640px){
  .container{width:min(var(--max),calc(100% - 28px))}.nav{height:70px;gap:14px}.brand{flex-basis:auto;max-width:calc(100% - 58px)}.brand img{height:35px;max-width:100%;object-position:left bottom;transform:translateY(-4px)}.hero{padding:58px 0 62px}.hero-grid{gap:42px}h1{font-size:32px}.hero-copy{font-size:16px}.section{padding:70px 0}.section-head h2,.content h2,.page-hero h1{font-size:24px}.capabilities,.quality-grid,.fact-row,.form-grid{grid-template-columns:1fr}.fact-row.three{grid-template-columns:1fr}.entity-line,.timeline-item{grid-template-columns:1fr;gap:7px}.factory-feature img{height:310px}.factory-caption{margin:0;border-radius:0 0 12px 12px;box-shadow:none;max-width:none;padding:26px 22px}.factory-caption h2{font-size:28px}.cta-row{align-items:flex-start;flex-direction:column}.cta-row h2{font-size:30px}.page-hero{padding:48px 0}.contact-grid{gap:40px}.form-card{padding:25px 20px}.footer-links{flex-direction:column;gap:24px}.footer-bottom{flex-direction:column}.hero-visual img{border-width:5px}.section-head{margin-bottom:34px}.company-structure{margin-top:38px}th,td{padding:13px 12px;font-size:13px}.spec-wrap{overflow-x:auto}table{min-width:650px}.investor-logo{width:calc(50% - 7px);height:70px;padding:7px 9px}.investor-logo img{max-height:54px}
}


/* Technical insight articles */
.insight-intro{max-width:850px}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 22px;color:#94a3b8;font-size:13px;margin-top:18px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:64px;align-items:start}
.article-body{max-width:820px}
.article-body .lead{font-size:19px;line-height:1.85;color:#475569;margin-bottom:34px}
.article-body h2{font-size:28px;line-height:1.35;margin:48px 0 16px;color:var(--ink);letter-spacing:-.02em}
.article-body h3{font-size:20px;margin:28px 0 10px}
.article-body p,.article-body li{font-size:16px;color:#526175;line-height:1.9}
.article-body ul{padding-left:22px}
.article-body strong{color:var(--ink)}
.article-summary{padding:24px 26px;background:#f1f7fa;border-left:3px solid var(--brand);margin:0 0 38px}
.article-summary h2{font-size:20px;margin:0 0 8px;color:var(--brand)}
.article-summary p{margin:0;color:#526175}
.article-callout{margin:34px 0;padding:24px 26px;border:1px solid #dce5eb;border-radius:10px;background:#fff}
.article-callout h3{color:var(--brand);margin-top:0}
.article-toc{position:sticky;top:112px;border-top:2px solid var(--brand);padding-top:18px}
.article-toc strong{display:block;font-size:13px;color:var(--brand);letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px}
.article-toc a{display:block;font-size:13px;color:#64748b;padding:6px 0;line-height:1.45}
.article-toc a:hover{color:var(--brand)}
.article-references{margin-top:52px;padding-top:28px;border-top:1px solid var(--line)}
.article-references h2{margin-top:0}
.article-references ol{padding-left:22px}
.article-references li{font-size:13px;line-height:1.75;color:#64748b;margin:8px 0}
.insight-card{border-top:2px solid var(--brand);padding-top:22px;max-width:900px}
.insight-card .eyebrow{font-size:12px;letter-spacing:.1em;color:var(--brand);font-weight:800;text-transform:uppercase}
.insight-card h3{font-size:24px;margin:10px 0 10px}
.insight-card p{color:var(--muted);font-size:15px;max-width:760px;margin-bottom:0}
@media(max-width:980px){.article-layout{grid-template-columns:1fr}.article-toc{position:static;order:-1}.article-toc a{display:inline-block;margin-right:16px}.article-body{max-width:none}}
@media(max-width:640px){.article-body h2{font-size:23px;margin-top:38px}.article-body .lead{font-size:17px}.article-summary,.article-callout{padding:20px}.article-toc{display:none}}