:root{
  --navy:#0d2340;
  --navy-2:#15385f;
  --blue:#1f6feb;
  --blue-dark:#1756b3;
  --cyan:#eaf4ff;
  --orange:#f97316;
  --green:#1f9d62;
  --text:#172033;
  --muted:#667085;
  --line:#dbe2ea;
  --soft:#f5f7fa;
  --white:#fff;
  --shadow:0 18px 50px rgba(13,35,64,.10);
  --shadow-sm:0 8px 24px rgba(13,35,64,.08);
  --radius:16px;
  --container:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:128px}
body{
  margin:0;
  font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
  color:var(--text);
  background:var(--white);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(calc(100% - 40px),var(--container));margin-inline:auto}
.skip-link{position:fixed;left:16px;top:-80px;z-index:10000;background:#fff;padding:10px 14px;border-radius:8px;box-shadow:var(--shadow)}
.skip-link:focus{top:16px}
.site-header{
  height:78px;background:#fff;border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:1000;
}
.header-main{height:100%;display:flex;align-items:center;gap:30px}
.brand img{width:174px}
.site-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.site-nav a{font-size:15px;font-weight:600;color:#344054;position:relative}
.site-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:-10px;height:2px;background:var(--blue);transition:.25s}
.site-nav a:hover:after,.site-nav a.is-active:after{right:0}
.header-actions{display:flex;align-items:center;gap:10px}
.language-btn{border:0;background:transparent;padding:9px;color:#475467}
.menu-toggle{display:none;border:0;background:transparent;width:42px;height:42px;padding:8px}
.menu-toggle span{display:block;height:2px;background:var(--navy);margin:6px 0;transition:.25s}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border:1px solid transparent;border-radius:9px;
  font-weight:700;transition:.22s ease;white-space:nowrap;
}
.btn:hover{transform:translateY(-1px)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(31,111,235,.22)}
.btn-primary:hover{background:var(--blue-dark)}
.btn-outline{border-color:#aeb8c6;color:var(--navy);background:#fff}
.btn-outline:hover{border-color:var(--blue);color:var(--blue)}
.btn-secondary{border-color:#bdc7d5;color:var(--navy);background:#fff}
.btn-secondary:hover{border-color:var(--blue);color:var(--blue)}
.btn-whatsapp{background:#eefaf5;color:#11764a;border-color:#bcebd6}
.btn-light{background:#fff;color:var(--navy)}
.breadcrumb-wrap{background:#f8fafc;border-bottom:1px solid #e7ebf0}
.breadcrumb{min-height:46px;display:flex;align-items:center;gap:10px;font-size:13px;color:#667085}
.breadcrumb a:hover{color:var(--blue)}
.product-hero{display:grid;grid-template-columns:1.05fr .95fr;gap:62px;padding-top:48px;padding-bottom:52px}
.product-gallery{display:grid;grid-template-columns:78px 1fr;gap:16px;align-content:start}
.gallery-thumbs{display:flex;flex-direction:column;gap:10px}
.thumb{border:1px solid var(--line);border-radius:10px;background:#fff;padding:6px;transition:.2s}
.thumb img{aspect-ratio:1;object-fit:contain}
.thumb.is-active,.thumb:hover{border-color:var(--blue);box-shadow:0 0 0 3px rgba(31,111,235,.1)}
.gallery-stage{
  position:relative;background:linear-gradient(145deg,#f8fafc,#eef3f8);
  border:1px solid var(--line);border-radius:18px;min-height:490px;
  display:grid;place-items:center;overflow:hidden;
}
.gallery-stage>img{width:90%;height:430px;object-fit:contain;transition:opacity .2s,transform .35s}
.gallery-stage:hover>img{transform:scale(1.025)}
.image-badge{position:absolute;left:18px;top:18px;background:var(--navy);color:#fff;border-radius:999px;padding:6px 11px;font-size:12px;font-weight:700}
.zoom-btn{position:absolute;right:16px;bottom:16px;width:42px;height:42px;border:1px solid var(--line);border-radius:50%;background:#fff;font-size:20px}
.video-trigger{grid-column:2;border:0;background:transparent;justify-self:start;color:var(--blue);font-weight:700;padding:8px 2px}
.play-icon{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--blue);color:#fff;font-size:10px;margin-right:8px}
.eyebrow,.section-kicker{font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--blue)}
.product-summary h1{font-size:42px;line-height:1.15;margin:12px 0 7px;color:var(--navy)}
.model-line{font-size:16px;color:#475467}
.lead{font-size:17px;color:#475467;margin:20px 0}
.summary-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.summary-tags span{padding:6px 10px;border-radius:999px;background:var(--cyan);color:#1559a6;font-size:12px;font-weight:700}
.key-specs{display:grid;grid-template-columns:1fr 1fr;margin:0;border-top:1px solid var(--line)}
.key-specs>div{display:grid;grid-template-columns:90px 1fr;border-bottom:1px solid var(--line);padding:11px 0}
.key-specs dt{font-size:13px;color:var(--muted)}
.key-specs dd{margin:0;font-size:14px;font-weight:700}
.key-specs>div:nth-child(odd){padding-right:20px}
.key-specs>div:nth-child(even){padding-left:20px;border-left:1px solid var(--line)}
.trade-info{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:22px 0 18px}
.trade-info>div{background:var(--soft);padding:12px 14px;border-radius:10px}
.trade-info span{display:block;font-size:12px;color:var(--muted)}
.trade-info strong{font-size:15px;color:var(--navy)}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap}
.response-note{margin-top:15px;color:#667085;font-size:13px}
.status-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#23b26d;margin-right:6px;box-shadow:0 0 0 4px rgba(35,178,109,.12)}
.section-nav{position:sticky;top:78px;z-index:900;background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);box-shadow:0 6px 14px rgba(13,35,64,.04)}
.section-nav-inner{display:flex;overflow:auto;scrollbar-width:none}
.section-nav-inner::-webkit-scrollbar{display:none}
.section-nav a{padding:17px 22px;font-size:14px;font-weight:700;color:#475467;white-space:nowrap;border-bottom:3px solid transparent}
.section-nav a:hover,.section-nav a.is-active{color:var(--blue);border-bottom-color:var(--blue)}
.section{padding:88px 0}
.section-light{background:#f7f9fc}
.section-heading{max-width:760px;margin:0 auto 38px;text-align:center}
.section-heading h2,.custom-copy h2,.inquiry-copy h2{font-size:34px;line-height:1.25;margin:8px 0 12px;color:var(--navy)}
.section-heading p{margin:0;color:var(--muted)}
.split-heading{max-width:none;display:flex;align-items:end;justify-content:space-between;text-align:left}
.text-link{color:var(--blue);font-weight:700}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:.25s}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm);border-color:#b9d6ff}
.feature-icon{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;background:var(--cyan);color:var(--blue);font-size:24px;font-weight:800}
.feature-card h3{margin:18px 0 8px;color:var(--navy)}
.feature-card p{margin:0 0 16px;color:var(--muted);font-size:14px}
.feature-result{font-size:12px;font-weight:800;color:var(--green)}
.spec-layout{display:grid;grid-template-columns:1.4fr .6fr;gap:24px}
.spec-groups{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.spec-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.spec-card h3{margin:0;padding:16px 18px;background:var(--navy);color:#fff;font-size:16px}
.spec-card dl{margin:0}
.spec-card dl div{display:grid;grid-template-columns:1fr 1.2fr;padding:11px 18px;border-bottom:1px solid #edf0f4}
.spec-card dl div:last-child{border-bottom:0}
.spec-card dt{color:var(--muted);font-size:13px}
.spec-card dd{margin:0;text-align:right;font-size:13px;font-weight:700}
.drawing-card{border:1px solid var(--line);border-radius:var(--radius);padding:18px;background:#fff;align-self:start;position:sticky;top:155px}
.drawing-top{display:flex;justify-content:space-between;font-size:13px;font-weight:700}
.drawing-card img{margin:22px auto}
.drawing-card p{font-size:12px;color:var(--muted);margin:0}
.table-scroll{overflow:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.comparison-table{border-collapse:collapse;width:100%;min-width:820px}
.comparison-table th,.comparison-table td{padding:15px 18px;border-bottom:1px solid var(--line);text-align:center;font-size:14px}
.comparison-table thead th{background:var(--navy);color:#fff}
.comparison-table tbody th{text-align:left;color:#475467;background:#f9fafb}
.comparison-table .recommended{background:var(--blue)}
.comparison-table .recommended span{display:inline-block;margin-left:6px;background:#fff;color:var(--blue);padding:2px 6px;border-radius:999px;font-size:10px}
.table-link{color:var(--blue);font-weight:800}
.selection-help{margin-top:20px;display:flex;align-items:center;justify-content:space-between;gap:24px;background:#eaf4ff;border-radius:var(--radius);padding:24px 28px}
.selection-help h3{margin:0 0 4px;color:var(--navy)}
.selection-help p{margin:0;color:var(--muted)}
.application-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.application-card{border-radius:var(--radius);overflow:hidden;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.application-card img{width:100%;aspect-ratio:16/10;object-fit:cover;background:#eef3f8}
.application-content{padding:24px}
.application-content>span{font-size:12px;color:var(--blue);font-weight:800}
.application-content h3{margin:6px 0 8px;color:var(--navy)}
.application-content p{font-size:14px;color:var(--muted)}
.application-content ul{margin:16px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:8px;list-style:none}
.application-content li{background:var(--soft);border-radius:999px;padding:5px 9px;font-size:11px}
.custom-section{background:linear-gradient(135deg,var(--navy),#16466f);color:#fff}
.custom-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:58px;align-items:center}
.section-kicker.light{color:#8ec5ff}
.custom-copy h2,.inquiry-copy h2{color:#fff}
.custom-copy p,.inquiry-copy p{color:#d7e0eb}
.custom-options{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0}
.custom-options span{border:1px solid rgba(255,255,255,.28);padding:8px 12px;border-radius:999px;font-size:13px}
.process-card{background:#fff;color:var(--text);border-radius:20px;padding:30px}
.process-card h3{font-size:22px;margin:0 0 20px;color:var(--navy)}
.process-list{list-style:none;margin:0;padding:0;counter-reset:step}
.process-list li{counter-increment:step;display:flex;justify-content:space-between;align-items:center;padding:16px 0 16px 52px;border-bottom:1px solid var(--line);position:relative}
.process-list li:last-child{border-bottom:0}
.process-list li:before{content:counter(step);position:absolute;left:0;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--cyan);color:var(--blue);font-weight:800}
.process-list span{font-size:12px;color:var(--muted)}
.factory-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:24px}
.factory-visual{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.factory-visual>img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#edf2f7}
.factory-stats{display:grid;grid-template-columns:repeat(3,1fr)}
.factory-stats div{text-align:center;padding:18px;border-right:1px solid var(--line)}
.factory-stats div:last-child{border-right:0}
.factory-stats strong{display:block;font-size:24px;color:var(--navy)}
.factory-stats span{font-size:12px;color:var(--muted)}
.quality-flow{display:grid;gap:12px}
.quality-flow article{display:flex;gap:16px;align-items:center;border:1px solid var(--line);border-radius:14px;padding:17px;background:#fff}
.quality-flow>article>span{min-width:58px;height:58px;border-radius:14px;display:grid;place-items:center;background:var(--navy);color:#fff;font-weight:800;font-size:12px}
.quality-flow h3{margin:0 0 3px;color:var(--navy);font-size:16px}
.quality-flow p{margin:0;color:var(--muted);font-size:13px}
.trust-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-top:24px}
.cert-card,.case-card{border:1px solid var(--line);border-radius:14px;padding:18px;background:#fff}
.cert-card{text-align:center}
.cert-card strong{display:block;color:var(--navy)}
.cert-card span,.case-card span{font-size:11px;color:var(--muted)}
.case-card{grid-column:span 1}
.case-card strong{display:block;margin:5px 0;color:var(--navy);font-size:13px}
.case-card p{margin:0;color:var(--muted);font-size:11px}
.download-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.download-card{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:16px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;transition:.2s}
.download-card:hover{border-color:var(--blue);box-shadow:var(--shadow-sm)}
.file-icon{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;background:var(--navy);color:#fff;font-size:11px;font-weight:800}
.download-card strong,.download-card small{display:block}
.download-card small{color:var(--muted);margin-top:3px}
.faq-layout{display:grid;grid-template-columns:.35fr .65fr;gap:70px}
.faq-intro{align-self:start;position:sticky;top:160px}
.faq-intro h2{font-size:34px;color:var(--navy);margin:8px 0}
.faq-intro p{color:var(--muted)}
.accordion{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item button{width:100%;border:0;background:transparent;display:flex;align-items:center;justify-content:space-between;padding:20px 0;font-weight:800;text-align:left;color:var(--navy)}
.faq-item i{width:22px;height:22px;position:relative;flex:none}
.faq-item i:before,.faq-item i:after{content:"";position:absolute;background:var(--blue);left:3px;right:3px;top:10px;height:2px}
.faq-item i:after{transform:rotate(90deg);transition:.2s}
.faq-item.is-open i:after{transform:rotate(0)}
.faq-answer{display:grid;grid-template-rows:0fr;transition:grid-template-rows .25s ease}
.faq-answer>p{overflow:hidden;margin:0;color:var(--muted);font-size:14px}
.faq-item.is-open .faq-answer{grid-template-rows:1fr}
.faq-item.is-open .faq-answer>p{padding:0 0 20px}
.related-section{background:#fff}
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.product-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.product-card img{aspect-ratio:1.25;object-fit:contain;background:#f5f7fa;padding:18px}
.product-card>div{padding:18px}
.product-card span{font-size:10px;letter-spacing:.1em;color:var(--blue);font-weight:800}
.product-card h3{font-size:16px;margin:6px 0;color:var(--navy)}
.product-card p{font-size:12px;color:var(--muted)}
.product-card a{font-size:13px;color:var(--blue);font-weight:800}
.inquiry-section{background:linear-gradient(135deg,#0d2340,#102f50);padding:88px 0;color:#fff}
.inquiry-layout{display:grid;grid-template-columns:.42fr .58fr;gap:56px;align-items:start}
.inquiry-benefits{list-style:none;padding:0;margin:28px 0}
.inquiry-benefits li{padding:7px 0;color:#e4ebf3}
.inquiry-benefits li:before{content:"✓";display:inline-grid;place-items:center;width:22px;height:22px;border-radius:50%;background:rgba(255,255,255,.14);margin-right:10px}
.contact-card{border-top:1px solid rgba(255,255,255,.18);padding-top:20px}
.contact-card span,.contact-card a{display:block}
.contact-card span{font-size:12px;color:#aebed0}
.contact-card a{margin-top:5px;font-weight:700}
.inquiry-form{background:#fff;color:var(--text);border-radius:20px;padding:30px;box-shadow:var(--shadow)}
.form-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}
.form-heading h3{margin:0;color:var(--navy);font-size:24px}
.form-heading p{font-size:12px;color:var(--muted);margin:0}
.form-heading span,.inquiry-form label>span{color:#e23d3d}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-grid label{font-size:13px;font-weight:700}
.form-grid input,.form-grid select,.form-grid textarea{
  width:100%;margin-top:7px;border:1px solid #cbd5e1;border-radius:8px;padding:11px 12px;outline:none;background:#fff;
}
.form-grid input:focus,.form-grid select:focus,.form-grid textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(31,111,235,.12)}
.form-grid input.is-invalid,.form-grid select.is-invalid,.form-grid textarea.is-invalid{border-color:#e23d3d}
.form-full{grid-column:1/-1}
.error{display:block;color:#d92d20;font-weight:500;margin-top:4px;min-height:15px}
.file-field input{padding:9px}
.file-field>span{display:block;color:var(--muted);font-weight:400;margin-top:5px;font-size:11px}
.privacy-check{display:flex;align-items:flex-start;gap:8px;margin:18px 0;font-size:12px;color:var(--muted)}
.privacy-check input{margin-top:4px}
.btn-submit{width:100%}
.form-status{margin-top:12px;font-size:13px;min-height:22px}
.form-status.success{color:var(--green)}
.site-footer{background:#081a2d;color:#b8c6d6;padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:36px}
.footer-brand img{width:176px}
.footer-brand p{font-size:13px;max-width:300px}
.site-footer h3{color:#fff;font-size:14px;margin:0 0 14px}
.site-footer a,.site-footer p{display:block;font-size:12px;margin:7px 0}
.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding:20px 0;display:flex;justify-content:space-between;font-size:11px}
.footer-bottom div{display:flex;gap:18px}
.mobile-cta{display:none}
.back-to-top{position:fixed;right:22px;bottom:24px;width:44px;height:44px;border:0;border-radius:50%;background:var(--navy);color:#fff;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:.2s;z-index:800}
.back-to-top.is-visible{opacity:1;pointer-events:auto}
.modal{position:fixed;inset:0;z-index:3000;display:grid;place-items:center;padding:30px}
.modal[hidden]{display:none}
.modal-backdrop{position:absolute;inset:0;background:rgba(4,12,23,.78);backdrop-filter:blur(5px)}
.modal-dialog{position:relative;width:min(880px,100%);background:#fff;border-radius:18px;padding:24px;z-index:1;box-shadow:0 30px 80px rgba(0,0,0,.3)}
.modal-close{position:absolute;right:12px;top:8px;border:0;background:transparent;font-size:30px;z-index:2}
.modal-content img{max-height:75vh;margin:auto}
.video-placeholder{aspect-ratio:16/9;background:linear-gradient(135deg,#0d2340,#1f6feb);display:grid;place-items:center;color:#fff;border-radius:12px;text-align:center}
.video-placeholder strong{font-size:26px}
.mobile-nav-backdrop{position:fixed;inset:78px 0 0;background:rgba(5,15,28,.5);z-index:950}

@media (max-width:1100px){
  .site-nav{gap:16px}.site-nav a{font-size:13px}.header-actions .language-btn{display:none}
  .product-hero{gap:38px}.feature-grid{grid-template-columns:1fr 1fr}
  .trust-grid{grid-template-columns:repeat(4,1fr)}.case-card{grid-column:span 2}
  .related-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:880px){
  body{padding-bottom:58px}
  .site-header{height:68px}.header-main{justify-content:space-between}.brand img{width:152px}
  .menu-toggle{display:block;margin-left:auto}
  .header-actions{display:none}
  .site-nav{
    position:fixed;left:0;right:0;top:68px;z-index:1000;background:#fff;
    flex-direction:column;align-items:stretch;gap:0;padding:10px 20px 24px;
    transform:translateY(-130%);transition:.28s;box-shadow:var(--shadow)
  }
  .site-nav.is-open{transform:translateY(0)}
  .site-nav a{padding:13px;border-bottom:1px solid var(--line)}
  .section-nav{top:68px}
  .product-hero{grid-template-columns:1fr;padding-top:30px}
  .product-gallery{grid-template-columns:1fr}
  .gallery-thumbs{grid-row:2;flex-direction:row;overflow:auto}
  .thumb{min-width:70px}.gallery-stage{min-height:390px}.gallery-stage>img{height:350px}
  .video-trigger{grid-column:1}
  .spec-layout,.custom-layout,.factory-layout,.faq-layout,.inquiry-layout{grid-template-columns:1fr}
  .drawing-card,.faq-intro{position:static}
  .application-grid{grid-template-columns:1fr}
  .trust-grid{grid-template-columns:1fr 1fr}.case-card{grid-column:span 1}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}.footer-brand,.footer-contact{grid-column:1/-1}
  .mobile-cta{display:grid;grid-template-columns:1fr 1fr;position:fixed;left:0;right:0;bottom:0;height:58px;z-index:1200;box-shadow:0 -6px 20px rgba(13,35,64,.16)}
  .mobile-cta a{display:grid;place-items:center;background:#128c5e;color:#fff;font-weight:800}
  .mobile-cta a:last-child{background:var(--blue)}
  .back-to-top{bottom:76px}
}
@media (max-width:620px){
  .container{width:min(calc(100% - 28px),var(--container))}
  .breadcrumb{overflow:hidden;white-space:nowrap}
  .product-summary h1{font-size:32px}
  .gallery-stage{min-height:320px}.gallery-stage>img{height:290px}
  .key-specs{grid-template-columns:1fr}.key-specs>div:nth-child(even){padding-left:0;border-left:0}.key-specs>div:nth-child(odd){padding-right:0}
  .trade-info{grid-template-columns:1fr 1fr 1fr}
  .hero-actions{display:grid;grid-template-columns:1fr 1fr}.hero-actions .btn-primary{grid-column:1/-1}
  .section{padding:64px 0}
  .section-heading h2,.custom-copy h2,.inquiry-copy h2,.faq-intro h2{font-size:28px}
  .feature-grid,.spec-groups,.download-grid,.related-grid,.form-grid{grid-template-columns:1fr}
  .form-full{grid-column:auto}
  .selection-help,.split-heading{align-items:flex-start;flex-direction:column}
  .factory-stats{grid-template-columns:1fr}.factory-stats div{border-right:0;border-bottom:1px solid var(--line)}
  .factory-stats div:last-child{border-bottom:0}
  .trust-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}.footer-brand,.footer-contact{grid-column:1/-1}
  .footer-bottom{flex-direction:column;gap:10px}
}
@media print{
  .site-header,.section-nav,.mobile-cta,.back-to-top,.video-trigger,.hero-actions,.zoom-btn{display:none!important}
  body{padding:0;color:#000}.section,.inquiry-section{padding:34px 0}
  .section-light,.custom-section,.inquiry-section,.site-footer{print-color-adjust:exact;-webkit-print-color-adjust:exact}
  .feature-card,.spec-card,.application-card,.product-card,.download-card{break-inside:avoid}
}



/* Swiper 核心布局本地兜底：即使 CDN 样式加载失败，结构也不会散开 */
.swiper{position:relative;overflow:hidden;display:block}
.swiper-wrapper{
  position:relative;
  z-index:1;
  display:flex;
  width:100%;
  height:100%;
  box-sizing:content-box;
  transition-property:transform;
}
.swiper-slide{
  position:relative;
  flex-shrink:0;
  width:100%;
  height:100%;
  transition-property:transform;
}
.swiper-pagination-bullet{
  display:inline-block;
  cursor:pointer;
}

/* =========================================================
   产品图集 V2：Swiper 主图 + 纵向缩略图
   ========================================================= */
.swiper-gallery{
  display:grid;
  grid-template-columns:92px minmax(0,1fr);
  gap:16px;
  align-content:start;
  min-width:0;
}
.thumbs-column{
  display:grid;
  grid-template-rows:36px 430px 36px;
  gap:8px;
  min-width:0;
}
.product-thumbs{
  width:100%;
  height:430px;
  min-width:0;
  overflow:hidden;
}
.product-thumbs .swiper-slide{
  height:auto;
  opacity:.66;
  transition:opacity .2s ease;
}
.product-thumbs .swiper-slide button{
  width:100%;
  height:76px;
  padding:5px;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  position:relative;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.product-thumbs .swiper-slide button:hover{
  border-color:#8ebcf8;
  transform:translateY(-1px);
}
.product-thumbs .swiper-slide img{
  width:100%;
  height:100%;
  object-fit:contain;
}
.product-thumbs .swiper-slide span{
  position:absolute;
  left:5px;
  bottom:5px;
  padding:1px 5px;
  border-radius:4px;
  color:#fff;
  background:rgba(13,35,64,.74);
  font-size:9px;
  line-height:1.5;
}
.product-thumbs .swiper-slide-thumb-active{
  opacity:1;
}
.product-thumbs .swiper-slide-thumb-active button,
.product-thumbs .is-fallback-active button{
  border-color:var(--blue);
  box-shadow:0 0 0 3px rgba(31,111,235,.12);
}
.thumb-nav{
  width:100%;
  height:36px;
  border:1px solid var(--line);
  border-radius:9px;
  background:#fff;
  color:var(--navy);
  font-size:18px;
  font-weight:800;
  transition:.2s ease;
}
.thumb-nav:hover:not(:disabled){
  color:#fff;
  border-color:var(--blue);
  background:var(--blue);
}
.thumb-nav:disabled{
  opacity:.35;
  cursor:not-allowed;
}
.gallery-main-wrap{min-width:0}
.product-main-swiper{
  position:relative;
  width:100%;
  height:510px;
  border:1px solid var(--line);
  border-radius:18px;
  overflow:hidden;
  background:linear-gradient(145deg,#f8fafc,#eef3f8);
}
.product-main-swiper .swiper-wrapper{height:100%}
.product-main-swiper .swiper-slide{
  height:100%;
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
}
.product-main-swiper .swiper-zoom-container{
  width:100%;
  height:100%;
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:zoom-in;
}
.product-main-swiper .swiper-zoom-container img{
  width:92%;
  height:92%;
  object-fit:contain;
  user-select:none;
  -webkit-user-drag:none;
}
.product-main-swiper .swiper-slide-zoomed .swiper-zoom-container{cursor:grab}
.gallery-nav{
  position:absolute;
  top:50%;
  z-index:12;
  width:46px;
  height:46px;
  margin-top:-23px;
  border:1px solid rgba(13,35,64,.12);
  border-radius:50%;
  color:var(--navy);
  background:rgba(255,255,255,.94);
  box-shadow:0 8px 22px rgba(13,35,64,.13);
  font-size:32px;
  line-height:1;
  display:grid;
  place-items:center;
  transition:.2s ease;
}
.gallery-nav:hover:not(:disabled){
  color:#fff;
  border-color:var(--blue);
  background:var(--blue);
  transform:scale(1.04);
}
.gallery-nav:disabled,
.gallery-nav.swiper-button-disabled{
  opacity:.28;
  cursor:not-allowed;
}
.gallery-prev{left:16px}
.gallery-next{right:16px}
.product-main-swiper .image-badge{z-index:11}
.product-main-swiper .zoom-btn{
  z-index:12;
  right:16px;
  bottom:16px;
}
.gallery-counter{
  position:absolute;
  left:18px;
  bottom:18px;
  z-index:12;
  display:flex;
  align-items:baseline;
  gap:5px;
  min-width:70px;
  padding:7px 11px;
  border-radius:999px;
  color:#fff;
  background:rgba(13,35,64,.78);
  backdrop-filter:blur(6px);
  font-size:12px;
}
.gallery-counter strong{font-size:16px}
.product-pagination{display:none}
.gallery-meta{
  min-height:62px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:12px 4px 0;
}
.gallery-meta strong,
.gallery-meta span{display:block}
.gallery-meta strong{
  color:var(--navy);
  font-size:14px;
}
.gallery-meta [data-gallery-description]{
  margin-top:2px;
  color:var(--muted);
  font-size:12px;
}
.gallery-tip{
  color:#8793a3;
  font-size:11px;
  white-space:nowrap;
}
.swiper-gallery .video-trigger{margin-top:3px}
.product-main-swiper:not(.swiper-initialized) .swiper-wrapper{display:block}
.product-main-swiper:not(.swiper-initialized) .swiper-slide{display:none}
.product-main-swiper:not(.swiper-initialized) .swiper-slide.is-fallback-active{display:flex}
.product-thumbs:not(.swiper-initialized) .swiper-wrapper{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.product-thumbs:not(.swiper-initialized) .swiper-slide{flex:0 0 76px}
@media (max-width:880px){
  .swiper-gallery{grid-template-columns:1fr}
  .gallery-main-wrap{grid-row:1}
  .thumbs-column{
    grid-row:2;
    grid-template-columns:38px minmax(0,1fr) 38px;
    grid-template-rows:76px;
    align-items:center;
  }
  .product-thumbs{
    width:100%;
    height:76px;
  }
  .thumb-nav{
    height:38px;
    transform:rotate(-90deg);
  }
  .product-thumbs .swiper-slide button{height:70px}
  .product-thumbs:not(.swiper-initialized) .swiper-wrapper{
    flex-direction:row;
    overflow:hidden;
  }
  .product-thumbs:not(.swiper-initialized) .swiper-slide{flex:0 0 76px}
  .product-main-swiper{height:430px}
  .product-pagination{
    display:block;
    bottom:18px!important;
  }
  .product-pagination .swiper-pagination-bullet{
    width:7px;
    height:7px;
    background:#8493a5;
    opacity:.55;
  }
  .product-pagination .swiper-pagination-bullet-active{
    width:20px;
    border-radius:999px;
    background:var(--blue);
    opacity:1;
  }
  .gallery-counter{
    left:auto;
    right:16px;
    bottom:48px;
  }
  .product-main-swiper .zoom-btn{bottom:48px}
  .gallery-nav{
    width:40px;
    height:40px;
    margin-top:-20px;
    opacity:.88;
  }
}
@media (max-width:620px){
  .product-main-swiper{height:340px}
  .product-main-swiper .swiper-zoom-container img{
    width:96%;
    height:96%;
  }
  .gallery-nav{display:none}
  .gallery-meta{align-items:flex-start}
  .gallery-tip{display:none}
  .thumbs-column{grid-template-columns:34px minmax(0,1fr) 34px}
}
@media print{
  .thumbs-column,
  .gallery-nav,
  .product-pagination,
  .gallery-counter,
  .gallery-meta,
  .product-main-swiper .zoom-btn{display:none!important}
  .swiper-gallery{grid-template-columns:1fr}
  .product-main-swiper{height:420px}
}