@media (min-width:1600px) { .hero-grid { min-height:705px; } }
@media (max-width:1100px) {
  .container { width:calc(100% - 72px); }
  .main-nav { gap:22px; }
  .hero-grid { min-height:600px; }
  .hero h1 { font-size:74px; }
  body[data-language="zh"] .hero h1 { font-size:64px; }
  .hero-description { font-size:15px; max-width:385px; }
  .hero-visual { margin-top:50px; }
  .section-head { gap:35px; }
  .section-intro { max-width:335px; font-size:14px; }
  .product-grid { gap:19px; }
  .card-body { padding:20px; }
  .product-card h3 { font-size:22px; }
  .product-card p { font-size:12px; min-height:112px; }
  .filters { gap:18px; }
  .workflow-step h3 { font-size:18px; }
  .about-grid { gap:45px; }
  .product-hero-grid { gap:38px; }
}
@media (max-width:850px) {
  .container { width:calc(100% - 48px); }
  .header-inner { height:76px; }
  .brand { font-size:21px; }
  .main-nav { gap:17px; font-size:11px; }
  .main-nav .nav-github { display:none; }
  .language-selector { padding-left:17px; }
  .hero-grid { grid-template-columns:1fr 1fr; min-height:560px; padding-top:25px; gap:0; }
  .hero h1 { font-size:60px; }
  body[data-language="zh"] .hero h1 { font-size:52px; }
  .hero-description { font-size:14px; }
  .hero .eyebrow { font-size:9px; margin-bottom:26px; }
  .hero-actions { gap:10px; }
  .button { padding:12px 17px; min-height:48px; gap:13px; font-size:12px; }
  .hero-foot { font-size:9px; }
  .section { padding-block:78px; }
  .section-head { align-items:flex-start; flex-direction:column; gap:22px; margin-bottom:34px; }
  .section-intro { max-width:600px; }
  .product-grid { grid-template-columns:repeat(2,minmax(0,1fr)); gap:22px; }
  .product-card p { font-size:13px; min-height:100px; }
  .workflow-track { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .workflow-step { min-height:200px; }
  .workflow-step:nth-child(3) { border-left:none; border-top:1px solid #4b5642; padding-left:0; }
  .workflow-step:nth-child(4) { border-top:1px solid #4b5642; }
  .about-grid { grid-template-columns:1fr; gap:40px; }
  .about-copy { max-width:580px; }
  .contact-inner { gap:35px; }
  .footer-main { gap:28px; }
  .footer-links { gap:20px; }
  .footer-bottom { font-size:9px; }
  .product-hero-grid { grid-template-columns:1.45fr 1fr; gap:18px; }
  .product-hero h1 { font-size:40px; }
  body[data-language="zh"] .product-hero h1 { font-size:36px; }
  .product-lead { font-size:14px; }
  .facts-grid { grid-template-columns:1fr 1fr; }
  .facts-grid>div:last-child { display:none; }
  .capability-grid { gap:0 28px; }
  .capability { gap:18px; }
  .capability h3 { font-size:17px; }
  .selection-note-inner { gap:35px; grid-template-columns:.6fr 1.5fr; }
}
@media (max-width:620px) {
  html { scroll-padding-top:84px; }
  .container { width:calc(100% - 40px); }
  .header-inner { min-height:70px; height:auto; flex-wrap:wrap; padding-block:17px; }
  .has-script .header-inner { height:70px; flex-wrap:nowrap; padding-block:0; }
  .brand { font-size:21px; gap:9px; }
  .brand-mark { width:36px; height:36px; }
  .menu-toggle { display:none; }
  .has-script .menu-toggle { display:block; }
  .main-nav { display:flex; width:100%; position:static; padding:10px 0; flex-direction:column; align-items:stretch; gap:2px; font-size:14px; background:var(--ink); border-bottom:1px solid #4c5841; }
  .has-script .main-nav { display:none; position:absolute; top:70px; left:0; right:0; padding:16px 20px 24px; }
  .has-script .main-nav.is-open { display:flex; }
  .main-nav>a { padding:12px 10px; }
  .main-nav .language-selector { border-left:none; border-top:1px solid #35422c; margin-top:8px; padding-left:10px; }
  .language-options { right:0; top:100%; }
  .hero-grid { grid-template-columns:1fr; padding-top:49px; padding-bottom:0; min-height:auto; }
  .hero-copy { padding-top:0; }
  .hero .eyebrow { font-size:8px; letter-spacing:.16em; margin-bottom:25px; }
  .hero h1 { font-size:clamp(49px,12.5vw,75px); }
  body[data-language="zh"] .hero h1 { font-size:clamp(49px,12.3vw,71px); }
  .hero-description { margin-top:23px; font-size:14px; max-width:470px; }
  .hero-actions { margin-top:25px; }
  .hero-actions .button { padding:13px 18px; min-height:49px; font-size:13px; }
  .hero-foot { margin-top:27px; font-size:9px; line-height:1.7; }
  .hero-visual { width:min(100%,410px); margin:10px auto 3px; aspect-ratio:1.12/1; }
  .hero-image { width:105%; height:112%; left:-2.5%; top:-5%; }
  body[data-language="de"] .hero h1,body[data-language="fr"] .hero h1 { font-size:clamp(40px,10.5vw,64px); }
  .concept-label { bottom:4px; font-size:8px; }
  .hero-bottom { height:56px; font-size:7px; letter-spacing:.07em; }
  .principles-inner { flex-wrap:wrap; gap:17px 14px; padding-block:21px; }
  .principles-inner>span { width:calc(50% - 7px); font-size:10px; gap:9px; }
  .principles svg { width:11px; height:11px; }
  .section { padding-block:58px; }
  h2 { font-size:32px; letter-spacing:-.045em; }
  body[data-language="zh"] h2 { font-size:29px; }
  .section-head { gap:18px; margin-bottom:29px; }
  .section-head .eyebrow { margin-bottom:14px; font-size:9px; }
  .section-intro { font-size:13px; }
  .collection-toolbar { flex-direction:column; align-items:flex-start; gap:2px; border-bottom:0; margin-bottom:20px; }
  .filters { flex-wrap:wrap; gap:0 21px; border-bottom:1px solid var(--line); width:100%; }
  .filter { font-size:11px; padding:9px 0 11px; }
  .collection-count { margin-top:11px; font-size:10px; }
  .product-grid { grid-template-columns:1fr; gap:22px; }
  .card-body { padding:23px; }
  .product-card h3 { font-size:25px; }
  .product-card p { min-height:0; font-size:13px; }
  .card-tags { margin-top:18px; }
  .card-link { margin-top:20px; }
  .workbench-figure { padding:5px 5px 0; border-radius:5px; }
  .workbench-figure figcaption { padding:12px 7px; font-size:8px; line-height:1.8; }
  .workflow-track { grid-template-columns:1fr 1fr; }
  .workflow-step { padding:23px 15px 25px; min-height:190px; }
  .workflow-step h3 { font-size:17px; margin-top:22px; line-height:1.3; }
  .step-products { font-size:10px; line-height:1.7; }
  .step-top svg { width:19px; height:19px; }
  .workflow-note { font-size:9px; line-height:1.9; }
  .about-grid { gap:32px; }
  .about-section .eyebrow { font-size:9px; margin-bottom:18px; }
  .creator-signature { margin-top:29px; }
  .creator-signature small { font-size:8px; }
  .about-copy p { font-size:13px; }
  .about-links { gap:23px; margin-top:23px; }
  .text-link { font-size:12px; }
  .contact-section { padding-block:46px; }
  .contact-inner { flex-direction:column; gap:30px; align-items:flex-start; }
  .contact-section h2 { font-size:31px; }
  .contact-section p:not(.eyebrow) { font-size:12px; max-width:360px; }
  .site-footer { padding-top:43px; }
  .footer-main { flex-direction:column; padding-bottom:35px; gap:28px; }
  .footer-main p { font-size:11px; margin-top:16px; }
  .footer-links { gap:22px; font-size:11px; }
  .footer-bottom { position:relative; flex-direction:column; align-items:flex-start; gap:9px; padding-right:35px; font-size:8px; }
  .footer-bottom a { position:absolute; right:0; top:24px; }
  .product-hero { padding-top:24px; padding-bottom:42px; }
  .back-link { margin-bottom:30px; }
  .product-hero-grid { grid-template-columns:1fr; gap:10px; }
  .product-hero .eyebrow { font-size:9px; margin-bottom:19px; }
  .product-name { font-size:18px; margin-bottom:19px; }
  .product-hero h1 { font-size:clamp(34px,8.8vw,48px); }
  body[data-language="zh"] .product-hero h1 { font-size:clamp(29px,7.5vw,42px); }
  .product-lead { font-size:13px; margin-top:23px; }
  .product-hero-art { max-width:420px; width:100%; margin:27px auto 0; }
  .product-hero-art .art-caption { font-size:8px; }
  .facts-grid { grid-template-columns:1fr; padding-block:11px; }
  .facts-grid>div { padding:16px 0; }
  .facts-grid>div+div { padding-left:0; border-left:0; border-top:1px solid var(--line); }
  .facts-grid>div:last-child { display:block; }
  .facts-grid p { font-size:12px; margin-top:5px; }
  .capability-grid { grid-template-columns:1fr; margin-top:28px; }
  .capability { padding-block:23px; }
  .capability h3 { font-size:16px; }
  .product-capture { margin-top:27px; }
  .product-capture figcaption { font-size:9px; }
  .product-steps { grid-template-columns:1fr; gap:0; margin-top:29px; margin-bottom:20px; }
  .product-steps li { padding:22px 28px 25px 0; }
  .product-steps span { margin-bottom:12px; }
  .product-steps h3 { font-size:18px; }
  .selection-note { padding-block:36px; }
  .selection-note-inner { grid-template-columns:1fr; gap:17px; }
  .selection-note h2 { font-size:21px; }
  .selection-note p { font-size:12px; }
  .selection-note small { font-size:9px; }
}