/* KUSEN visual system — shared by the English and Chinese editions. */
:root {
  --ink: #152d40;
  --navy: #091b2a;
  --paper: #f5f7f8;
  --muted: #617380;
  --line: #dce3e7;
  --accent: #efab60;
  --gutter: clamp(24px, 5vw, 88px);
  --radius: 12px;
  --shadow: 0 16px 42px -28px #193f5d55;
}
body { font-size: 15px; }
h1, h2, h3 { text-wrap: balance; }
h2 { font-size: clamp(34px, 3.3vw, 52px); line-height: 1.18; letter-spacing: -.045em; }
h3 { letter-spacing: -.025em; }
html[lang="zh-CN"] h1, html[lang="zh-CN"] h2, html[lang="zh-CN"] h3 { letter-spacing: .015em; font-weight: 600; }
.section, .motion-lab { padding-block: 88px; }
.section-head { margin-bottom: 38px; gap: 48px; }
.section-description { max-width: 370px; font-size: 14px; line-height: 1.9; }
.eyebrow { font-size: 11px; letter-spacing: .14em; margin-bottom: 22px; gap: 14px; }
.eyebrow > span { color: #54758a; }
.eyebrow > span:first-child { border-left: 2px solid var(--accent); padding-left: 12px; }
.button { min-height: 52px; border-radius: 6px; padding: 14px 23px; font-size: 13px; gap: 28px; }
.primary { color: #182b39; background: var(--accent); box-shadow: 0 6px 22px #efab6017; }
.primary:hover { background: #ffc181; transform: translateY(-2px); }
.dark-button { background: #163a53; box-shadow: 0 5px 14px #163a5314; }
.dark-button:hover { background: #245671; transform: translateY(-2px); }
.text-button { border-color: #a8c4d440; background: #ffffff04; }
.text-button:hover { background: #ffffff0b; border-color: #c6deea80; }
.line-link { font-size: 13px; border-color: #7892a36b; }
:focus-visible { outline: 3px solid #d38a37; outline-offset: 4px; }

/* A bright, legible brand bar above the dark product theatre. */
.site-header, .site-header.scrolled {
  height: 92px; color: var(--ink); background: #fffffffa;
  box-shadow: 0 1px 0 #19374d12; backdrop-filter: blur(18px);
}
.header-inner { max-width: 1680px; border: 0; gap: 28px; }
.site-header .brand-logo { width: 190px; max-height: 63px; }
.desktop-nav { gap: clamp(18px, 2vw, 32px); }
.desktop-nav > a, .resource-toggle { color: #425667; font-size: 13px; font-weight: 600; }
.desktop-nav > a:after { background: #d58a3d; height: 2px; bottom: -12px; }
.desktop-nav > a[aria-current], .desktop-nav > a:hover, .resource-toggle:hover { color: #163e5b; }
.header-actions { gap: 22px; }
.language-switch { font-size: 11px; gap: 6px; }
.language-switch > a { color: #73838d; min-width: 27px; justify-content: center; }
.language-switch > a[aria-current="true"] { color: #183a51; font-weight: 750; }
.language-switch > a:hover { color: #a96523; }
.language-switch > span { color: #c3cdd4; }
.header-contact { background: #163a53; color: #fff; border: 1px solid #163a53; border-radius: 6px; min-height: 44px; gap: 21px; }
.header-contact:hover { background: #285771; }
.menu-toggle span { background: #173a51; height: 2px; }
.resource-links { background: white; color: var(--ink); border: 1px solid var(--line); border-radius: 10px; padding: 8px; box-shadow: 0 18px 45px #0b263b20; }
.resource-links > a { border-radius: 6px; padding: 13px 14px; }
.resource-links > a:hover { background: #edf3f6; }
.resource-links small { color: #6a7d8a; }
.mobile-nav { background: #fff; color: var(--ink); box-shadow: 0 20px 30px #0a263b18; border-color: var(--line); max-height: calc(100svh - 76px); overflow-y: auto; }
.mobile-nav > a { border-color: var(--line); font-size: 16px; }
.site-header:not(.header-overlay).scrolled + main { padding-top: 92px; }

/* Product and message have their own space, with a quiet factory backdrop. */
.hero { height: 840px; min-height: 760px; max-height: none; background: #091b2a; }
.hero .hero-visual { background-position: center; background-size: cover; opacity: .2; filter: saturate(.45); }
.hero-shade { background: linear-gradient(90deg, #091b2af5 3%, #091b2ab3 48%, #091b2a33), linear-gradient(0deg, #091b2a, transparent 38%); }
.hero-grid { inset: 92px var(--gutter) 0; border-color: #bbd9eb08; }
.hero-content { padding-top: 222px; pointer-events: none; }
.hero-content a { pointer-events: auto; }
.hero-eyebrow { color: #b5c9d6; font-size: 10px; letter-spacing: .16em; margin-bottom: 28px; }
.status-dot { background: var(--accent); box-shadow: 0 0 0 4px #efab6012; width: 6px; height: 6px; }
.hero h1 { font-size: clamp(68px, 6.4vw, 108px); line-height: 1.04; letter-spacing: -.055em; font-weight: 650; max-width: 55%; margin-left: -4px; }
.hero .outline-text { -webkit-text-stroke: 0; color: #93bdd4; margin-top: 10px; }
html[lang="zh-CN"] .hero h1 { font-size: clamp(62px, 6.2vw, 100px); line-height: 1.25; letter-spacing: .035em; }
.hero-description { max-width: 44%; font-size: 15px; line-height: 1.9; color: #b8cbd8; margin-top: 28px; }
.hero-actions { gap: 14px; margin-top: 32px; }
.hero-actions .button { padding: 14px 22px; min-height: 52px; font-size: 12px; }
.hero-actions .text-button { gap: 22px; }
.hero-coordinate { display: none; }
.hero .hero-orbit { opacity: .07; right: 3%; }
.hero-five-axis {
  position: absolute; z-index: 3; top: 202px; right: var(--gutter); bottom: auto;
  width: min(44%, 660px); height: 445px; padding: 25px 28px 0;
  display: flex; flex-direction: column; filter: none;
  background: linear-gradient(145deg, #fff, #e7edf1); border: 1px solid #fff8;
  border-radius: 16px; box-shadow: 0 35px 75px #0004;
}
.hero-product-top { display: flex; justify-content: space-between; align-items: center; color: #627c8f; font-size: 9px; letter-spacing: .12em; }
.hero-product-top > span:last-child { color: #24485f; border: 1px solid #b8cad5; border-radius: 4px; padding: 5px 9px; }
.hero-five-axis > img { width: 100%; height: 280px; min-height: 0; object-fit: contain; mix-blend-mode: multiply; margin-block: 12px; }
.hero-product-bottom { display: flex; align-items: center; justify-content: space-between; gap: 16px; border-top: 1px solid #b9ccd785; padding-block: 18px; color: var(--ink); }
.hero-product-bottom h2 { font-size: 21px; line-height: 1.35; letter-spacing: -.025em; }
.hero-product-bottom p { color: #658093; font-size: 10px; letter-spacing: .04em; margin-top: 4px; }
.hero-product-bottom > a { display: grid; place-items: center; width: 43px; height: 43px; border-radius: 50%; background: #193e57; color: white; flex-shrink: 0; transition: background .2s, transform .2s; }
.hero-product-bottom > a:hover { transform: rotate(5deg); background: #a9692c; }
.hero-product-bottom svg { width: 18px; height: 18px; }
.hero-bottom { min-height: 96px; }
.hero-chapters { gap: 36px; }
.hero-chapters > a { font-size: 10px; color: #91a9b9; }
.hero-chapters > a > span { color: var(--accent); }
.hero-chapters > a.active:before { background: var(--accent); top: -17px; }
.scroll-link { font-size: 9px; color: #b9cbd6; }
.hero-index { font-size: 11px; color: #b9cbd6; }
.expertise-strip { background: #102b3f; border-bottom: 0; }
.expertise-strip .container { min-height: 76px; gap: 20px; }
.expertise-strip .container > span:first-child { color: #93afc1; font-size: 9px; }
.expertise-strip .container > span:nth-child(2) { font-size: 12px; color: #d0dde5; }
.expertise-strip i { color: var(--accent); margin-inline: 18px; }
.expertise-strip a { font-size: 10px; color: #d8e5ee; }

/* Shared cards: calm surfaces, readable metadata, consistent interaction. */
.featured-grid, .catalog-grid { gap: 26px; }
.product-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; transition: border-color .25s, box-shadow .25s, transform .25s; }
.product-card-link { height: 100%; display: flex; flex-direction: column; }
.product-image { background: #fdfefe; border: 0; border-bottom: 1px solid #e8edf0; aspect-ratio: 1.32; margin: 0; }
.product-image > img { width: 89%; height: 80%; }
.product-image .product-number { top: 18px; left: 22px; font-size: 10px; color: #738694; }
.product-image .product-open { width: 34px; height: 34px; border-radius: 50%; background: white; border-color: #d8e2e8; }
.product-card-copy { padding: 25px 24px 22px; border: 0; flex: 1; }
.product-card .product-kicker { font-size: 10px; letter-spacing: .11em; color: #68879a; margin-bottom: 10px; }
.product-card h3 { font-size: 23px; line-height: 1.35; }
.product-summary { font-size: 12px; color: #5d7280; margin-top: 18px; gap: 12px; }
.product-detail-link { margin: 0 24px; padding-block: 16px; font-size: 12px; color: #254c66; border-color: #e1e8ec; }
.section-tail { margin-top: 32px; }
.section-tail > span { font-size: 10px; color: #738390; }
.catalog-toolbar { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 14px 18px; margin-bottom: 30px; }
.filters { gap: 6px; }
.filter { border-color: transparent; border-radius: 6px; font-size: 12px; padding: 10px 15px; min-height: 42px; }
.filter.active { background: #173c55; border-color: #173c55; }
.filter:hover:not(.active) { background: #edf3f6; }
.catalog-count { font-size: 10px; padding-right: 4px; }
.catalog-note > p { font-size: 12px; }
.knowledge-card, .service-grid article, .facility-card, .installation-card, .related-products > a { border-radius: var(--radius); border-color: var(--line); box-shadow: var(--shadow); overflow: hidden; transition: transform .25s, box-shadow .25s, border-color .25s; }
.knowledge-card { padding: 30px; }
.card-index { width: 34px; height: 34px; display: grid; place-items: center; background: #ecf2f6; color: #446d86; border-radius: 8px; font-size: 11px; margin-bottom: 24px; }
.knowledge-card h3, .service-grid h3 { font-size: 23px; }
.knowledge-card p, .service-grid p, .facility-copy > p { font-size: 14px; line-height: 1.9; }
.knowledge-card .line-link { margin-top: 20px; padding-top: 12px; }
.tinted { background: #eaf0f3; }
.service-grid article { background: #fff; padding: 28px; }
.service-grid article > span { color: #496f86; font-size: 25px; }
.resource-product-list > a { padding: 20px; border-radius: 9px; transition: background .2s, border-color .2s; }
.resource-product-list > a:hover { background: #f7fafc; }
.related-products > a { padding: 25px; }
.factory-figure > div { border-radius: 10px; }
.facility-card .factory-figure > div, .installation-card .factory-figure > div { border-radius: 0; }
.facility-copy, .installation-copy { padding: 28px; }
.installation-copy > p { font-size: 13px; }
.scene-badge { border-radius: 5px; font-size: 10px; }
.scene-topic-tags > span, .application-tags span { border-radius: 5px; background: #f0f5f8; border-color: #dce6ec; }
.installation-followup { border: 1px solid #cbdce5; border-radius: var(--radius); background: #e5eef3; padding: 30px; }

/* Editorial sections and engineering data. */
.page-intro { padding-block: 68px 72px; background: radial-gradient(ellipse at 93% 0%, #24455c80, transparent 57%), var(--navy); border-bottom: 1px solid #294355; }
.page-intro:after { content: ''; width: 360px; height: 360px; border: 1px solid #83a8be1c; border-radius: 50%; top: -100px; right: 5%; box-shadow: 0 0 0 65px #91bed706, 0 0 0 130px #91bed704; pointer-events: none; }
.page-intro h1 { font-size: clamp(40px, 4.4vw, 66px); max-width: 1000px; line-height: 1.14; }
.page-intro h1 span { color: #93bdd4; }
.page-intro .container { position: relative; z-index: 1; }
.page-intro .container > p:last-child { color: #adbfcd; max-width: 700px; font-size: 15px; margin-top: 24px; }
.page-intro .eyebrow, .page-intro .eyebrow > span { color: #96b4c9; }
.company-grid, .about-intro { gap: 70px; }
.company-copy { padding-top: 28px; }
.company-copy > p + p, .about-side { font-size: 14px; line-height: 1.95; }
.company-stats { padding-top: 28px; gap: 35px; }
.company-stats strong { font-size: 52px; color: #254d68; }
.company-stats > div > span { font-size: 10px; }
.capability-row { padding-top: 30px; margin-top: 48px; }
.capability-row > span { font-size: 11px; }
.capability-row > span:before { color: #b16f2d; }
.process-section { background: #10283b; }
.process-grid { gap: 28px; margin-top: 45px; }
.process-grid article { border-color: #a7c6da3b; padding-top: 24px; }
.process-grid article > span { color: #d8ae7c; font-size: 10px; }
.process-grid h3 { margin-top: 25px; font-size: 22px; }
.process-grid p { font-size: 13px; line-height: 1.9; color: #a6bccb; max-width: none; }
.integration-content h2 > span { color: #a8cde1; }
.integration-content > p:not(.eyebrow) { font-size: 14px; }
.integration-tags > span { font-size: 10px; }
.solution-art, .product-stage { border-radius: 14px; border-color: var(--line); box-shadow: var(--shadow); }
.solution-layout > div > p:not(.eyebrow) { font-size: 14px; }
.check-list li { font-size: 13px; padding-block: 14px; }
.product-page { padding-top: 32px; }
.product-overview { gap: 56px; }
.product-stage { padding: 32px; background: linear-gradient(145deg, #fff, #eff4f7); }
.product-stage img { mix-blend-mode: multiply; height: 370px; }
.product-stage > span { font-size: 9px; }
.product-overview-copy h1 { font-size: clamp(32px, 3.5vw, 50px); }
.product-facts { padding-block: 24px; margin-block: 26px; }
.product-facts strong { font-size: 20px; color: #254d68; }
.product-facts span { font-size: 11px; }
.detail-nav { gap: 32px; padding-block: 23px; font-size: 13px; }
.detail-nav a { border-bottom: 2px solid transparent; }
.detail-nav a:hover { border-color: #c98c4b; color: #204f6f; }
.data-table-wrap { border-radius: 10px; border-color: #d3dfe6; box-shadow: var(--shadow); }
.data-table thead { background: #173c55; }
.data-table th, .data-table td { padding: 18px 24px; border-color: #e1e8ed; }
.data-table tbody tr:nth-child(even) { background: #f3f7fa; }
.data-table tbody tr:hover { background: #eaf2f7; }
.content-note { font-size: 12px; line-height: 1.9; }
.inline-panel { background: #e8f0f5; border-left-color: #bd874f; border-radius: 0 10px 10px 0; padding: 28px; }
.document-cover { border-radius: 4px 12px 12px 4px; background: linear-gradient(145deg, #315a73, #10293c); border-left: 7px solid #557f96; box-shadow: 6px 7px 0 #cbd9df, 20px 25px 40px #173c5520; }

/* Forms and the closing invitation use the same visual language. */
.contact-layout { gap: 70px; align-items: start; }
.contact-details > p:not(.eyebrow) { font-size: 14px; max-width: 380px; }
.contact-email { font-size: clamp(18px, 1.9vw, 26px); color: #1b4b6c; }
.inquiry-panel { border: 1px solid var(--line); border-radius: 14px; padding: 36px; box-shadow: var(--shadow); }
form { gap: 24px; }
form label { font-size: 12px; }
form input:not([type=checkbox]), form select, form textarea { border: 1px solid #d4e0e7; border-radius: 6px; padding: 12px 14px; background: #f8fafb; font-size: 14px; margin-top: 9px; transition: border-color .2s, box-shadow .2s; }
form input:not([type=checkbox]):focus, form select:focus, form textarea:focus { outline: none; border-color: #537f9a; background: #fff; box-shadow: 0 0 0 3px #537f9a1a; }
form input::placeholder, form textarea::placeholder { color: #7c8c97; }
form .consent { font-size: 11px; gap: 11px; }
form .consent input { width: 16px; height: 16px; flex-shrink: 0; }
.form-note { font-size: 11px; max-width: 450px; }
.inquiry-status { border-radius: 6px; }
.faq-list details { padding-inline: 20px; background: #fff; border: 1px solid var(--line); border-radius: 8px; margin-bottom: 12px; }
.faq-list details:first-child { border-top-color: var(--line); }
.faq-list summary { font-size: 14px; padding-block: 21px; }
.faq-list summary > span { color: #496d83; }
.faq-list details[open] { border-color: #a2bac9; }
.faq-list details > p { font-size: 13px; line-height: 1.9; }
.project-cta { background: #dce9f0; padding-block: 72px; border-top: 1px solid #c7dce7; }
.project-cta h2 { font-size: clamp(36px, 3.7vw, 56px); color: #163a53; }
.project-cta .eyebrow { font-size: 10px; }
.cta-circle { width: 136px; height: 136px; background: #173c55; color: #fff; border: 0; box-shadow: 0 12px 26px #173c5526; }
.cta-circle:hover { background: #a9682c; transform: translateY(-3px); }
.cta-circle > span { font-size: 9px; }
.compact-cta { background: #dfeaf1; padding-block: 48px; }
.compact-cta p { font-size: 14px; }
.site-footer { background: #091b2a; padding-top: 58px; }
.site-footer .brand { background: #f7fafc; border-radius: 7px; padding: 8px 14px; }
.site-footer .brand-logo { width: 170px; height: 56px; }
.footer-top { gap: 36px; padding-bottom: 48px; }
.footer-top > div:first-child > p { font-size: 13px; color: #99afbe; }
.footer-column > span { font-size: 10px; color: #d0dfe8; letter-spacing: .1em; }
.footer-column > a, .footer-column > p { font-size: 12px; line-height: 1.8; color: #9eb4c3; }
.footer-column > a:hover { color: #efbc83; }
.footer-bottom { font-size: 10px; color: #7f99aa; padding-block: 25px; gap: 22px; }
.footer-bottom > a:last-child { font-size: 9px; }
.back-top a { width: 42px; height: 42px; border-radius: 50%; box-shadow: 0 8px 18px #091b2a25; }
.motion-lab { background: #0b2031; }
.motion-lab .section-head { margin-bottom: 38px; }
.motion-lab h2 > span { color: #93bdd4; }
.motion-stage { border-radius: 14px; box-shadow: 0 26px 55px #0003; }
.scene-controls button[data-scene-play] { background: var(--accent); border-color: var(--accent); }
.scene-controls button[data-scene-play]:hover { background: #ffc181; }
.scene-footnote > p { font-size: 11px; max-width: 650px; color: #8da9bc; }

@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .product-card:hover, .knowledge-card:hover, .related-products > a:hover { transform: translateY(-5px); box-shadow: 0 22px 40px -24px #193f5d55; border-color: #aac0cf; }
}
@media (max-width: 1150px) {
  .site-header .brand-logo { width: 160px; }
  .header-actions { gap: 14px; }
  .header-inner { gap: 18px; }
  .desktop-nav { gap: 18px; }
  .desktop-nav > a, .resource-toggle { font-size: 12px; }
  .hero { height: 790px; }
  .hero-content { padding-top: 215px; }
  .hero-five-axis { top: 205px; height: 400px; padding: 20px 22px 0; }
  .hero-five-axis > img { height: 242px; }
  .hero-product-bottom h2 { font-size: 19px; }
  .hero-product-top { font-size: 8px; }
  .hero-chapters { gap: 20px; }
  .hero-chapters > a { font-size: 9px; }
  .product-card-copy { padding-inline: 20px; }
  .product-card h3 { font-size: 21px; }
  .product-detail-link { margin-inline: 20px; }
  .company-grid, .about-intro, .contact-layout { gap: 40px; }
  .product-overview { gap: 32px; }
  .inquiry-panel { padding: 28px; }
  .expertise-strip i { margin-inline: 10px; }
}
@media (max-width: 900px) {
  .site-header, .site-header.scrolled { height: 82px; }
  .site-header:not(.header-overlay).scrolled + main { padding-top: 82px; }
  .hero { height: 780px; min-height: 740px; }
  .hero h1 { font-size: 7.5vw; }
  html[lang="zh-CN"] .hero h1 { font-size: 7vw; }
  .hero-content { padding-top: 212px; }
  .hero-eyebrow { font-size: 8px; letter-spacing: .1em; }
  .hero-description { font-size: 13px; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .hero-five-axis { top: 200px; width: 45%; height: 385px; padding: 18px 20px 0; }
  .hero-five-axis > img { height: 235px; }
  .hero-product-top > span:last-child { display: none; }
  .hero-product-bottom h2 { font-size: 17px; }
  .hero-product-bottom > a { width: 35px; height: 35px; }
  .hero-product-bottom p { font-size: 9px; }
  .section, .motion-lab { padding-block: 64px; }
  .section-head { gap: 30px; }
  .section-description { font-size: 13px; }
  .featured-grid, .catalog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
  .page-intro { padding-block: 52px; }
  .page-intro .container > p:last-child { font-size: 14px; }
  .product-stage img { height: 300px; }
  .product-facts strong { font-size: 17px; }
  .product-facts span { font-size: 10px; }
  .knowledge-card { padding: 25px; }
  .contact-layout { gap: 40px; }
  .company-stats strong { font-size: 43px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  :root { --gutter: 22px; --radius: 10px; }
  h2 { font-size: 32px; line-height: 1.25; }
  .site-header, .site-header.scrolled { height: 76px; }
  .site-header:not(.header-overlay).scrolled + main { padding-top: 76px; }
  .site-header .brand-logo { width: clamp(112px, 31vw, 150px); }
  .header-inner { gap: 10px; }
  .header-actions { gap: 10px; }
  .header-contact { min-height: 36px; font-size: 10px; padding: 8px 10px; }
  .language-switch { font-size: 10px; gap: 2px; }
  .language-switch > a { min-width: 23px; padding-inline: 1px; }
  .menu-toggle { width: 24px; }
  .hero { height: auto; min-height: 0; max-height: none; padding-bottom: 76px; display: flex; flex-direction: column; }
  .hero-content { padding-top: 124px; order: 0; }
  .hero .hero-visual { background-size: auto 100%; background-position: 70% center; opacity: .12; }
  .hero-shade { background: linear-gradient(90deg, #091b2ad9, #091b2a88); }
  .hero-grid { top: 76px; }
  .hero-eyebrow { font-size: 8px; white-space: normal; letter-spacing: .1em; margin-bottom: 20px; }
  .hero h1, html[lang="zh-CN"] .hero h1 { max-width: 100%; font-size: clamp(44px, 11.8vw, 70px); line-height: 1.15; margin-left: 0; letter-spacing: -.035em; }
  html[lang="zh-CN"] .hero h1 { font-size: clamp(43px, 11.5vw, 68px); letter-spacing: .035em; line-height: 1.25; }
  .hero .outline-text { margin-top: 5px; }
  .hero-description, html[lang="zh-CN"] .hero-description { max-width: 100%; margin-top: 22px; font-size: 13px; line-height: 1.85; }
  .hero-actions { flex-direction: row; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
  .hero-actions .button { min-height: 46px; font-size: 11px; padding: 11px 15px; gap: 14px; }
  .hero-five-axis { position: relative; inset: auto; width: auto; height: auto; margin: 32px var(--gutter) 27px; padding: 17px 18px 0; order: 1; border-radius: 12px; }
  .hero-product-top { font-size: 8px; }
  .hero-product-top > span:last-child { display: inline; font-size: 8px; }
  .hero-five-axis > img { height: clamp(170px, 49vw, 280px); margin-block: 8px; }
  .hero-product-bottom { padding-block: 14px; }
  .hero-product-bottom h2 { font-size: 18px; }
  .hero-product-bottom p { font-size: 9px; }
  .hero-bottom { min-height: 76px; }
  .hero-chapters { display: none; }
  .hero-index { font-size: 10px; }
  .scroll-link { font-size: 8px; }
  .expertise-strip .container { align-items: center; min-height: 82px; }
  .expertise-strip .container > span:nth-child(2) { font-size: 10px; max-width: 220px; line-height: 2.1; }
  .expertise-strip i { margin-inline: 6px; }
  .expertise-strip a { font-size: 8px; flex-shrink: 0; }
  .section, .motion-lab { padding-block: 48px; }
  .eyebrow { font-size: 9px; margin-bottom: 18px; gap: 10px; }
  .section-head { margin-bottom: 28px; }
  .section-description { font-size: 13px; margin-top: 18px; max-width: 100%; }
  .featured-grid, .catalog-grid { grid-template-columns: 1fr; gap: 23px; }
  .product-image { aspect-ratio: 1.42; }
  .product-card-copy { padding: 22px; }
  .product-card h3 { font-size: 23px; }
  .product-card .product-kicker { font-size: 10px; }
  .product-summary { font-size: 12px; margin-top: 14px; }
  .product-detail-link { margin-inline: 22px; }
  .catalog-toolbar { padding: 12px; }
  .filter { font-size: 11px; padding: 9px 12px; }
  .catalog-count { padding-left: 10px; margin-top: 12px; }
  .catalog-note > p { font-size: 12px; }
  .page-intro { padding-block: 40px 44px; }
  .page-intro h1, html[lang="zh-CN"] .page-intro h1 { font-size: 34px; }
  .page-intro .container > p:last-child { font-size: 13px; line-height: 1.9; }
  .page-intro:after { right: -180px; }
  .knowledge-grid, .service-grid { gap: 18px; }
  .knowledge-card, .service-grid article { padding: 25px; }
  .knowledge-card p, .service-grid p { font-size: 13px; }
  .card-index { margin-bottom: 19px; }
  .company-grid, .about-intro { gap: 26px; }
  .company-copy, .about-side { padding-top: 0; }
  .company-copy > p + p, .about-side { font-size: 13px; }
  .company-stats strong { font-size: 44px; }
  .company-stats > div > span { font-size: 9px; }
  .capability-row { margin-top: 32px; }
  .capability-row > span { font-size: 10px; }
  .process-grid { gap: 32px 22px; }
  .process-grid h3 { font-size: 19px; }
  .process-grid p { font-size: 12px; }
  .process-grid article > span { font-size: 9px; }
  .integration-content { padding-block: 52px; }
  .integration-content h2 { font-size: 43px; }
  .integration-content > p:not(.eyebrow) { font-size: 12px; }
  .integration-tags { gap: 14px; }
  .integration-tags > span { font-size: 8px; }
  .product-overview { grid-template-columns: 1fr; gap: 28px; }
  .product-stage { padding: 22px; }
  .product-stage img { height: 260px; }
  .product-overview-copy h1 { font-size: 32px; }
  .product-overview-copy > p:not(.eyebrow) { font-size: 14px; }
  .product-facts { gap: 12px; }
  .product-facts strong { font-size: 15px; }
  .product-overview-copy > .line-link { margin-top: 12px; margin-left: 0; }
  .detail-nav { gap: 12px 22px; font-size: 12px; }
  .data-table th, .data-table td { padding: 15px; font-size: 12px; }
  .facility-copy, .installation-copy { padding: 23px; }
  .facility-copy > p, .installation-copy > p { font-size: 13px; }
  .scene-badge { font-size: 9px; }
  .factory-profile-copy > p { font-size: 13px; }
  .scene-disclosure { font-size: 11px; }
  .installation-followup { padding: 24px; }
  .contact-layout { gap: 34px; }
  .contact-details > p:not(.eyebrow) { font-size: 13px; }
  .contact-email { font-size: 21px; }
  .inquiry-panel { margin: 0; padding: 24px 20px; }
  .form-row { gap: 24px; }
  form label { font-size: 12px; }
  form input:not([type=checkbox]), form select, form textarea { font-size: 16px; }
  form > .button { width: 100%; min-width: 0; }
  .faq-list details { padding-inline: 16px; }
  .faq-list summary { font-size: 13px; }
  .faq-list details > p { font-size: 12px; padding-right: 0; }
  .project-cta { padding-block: 48px; }
  .project-cta .container { gap: 28px; }
  .project-cta h2, html[lang="zh-CN"] .project-cta h2 { font-size: 34px; }
  .cta-circle { width: 110px; height: 110px; }
  .cta-circle > span { font-size: 8px; }
  .compact-cta { padding-block: 36px; }
  .compact-cta p { font-size: 13px; }
  .site-footer { padding-top: 42px; }
  .footer-top { gap: 30px 22px; padding-bottom: 35px; }
  .footer-column > span { font-size: 9px; }
  .footer-column > a, .footer-column > p { font-size: 11px; }
  .footer-bottom { font-size: 9px; gap: 16px; }
  .motion-lab h2, html[lang="zh-CN"] .motion-lab h2 { font-size: 31px; }
  .motion-lab .section-description { font-size: 13px; }
  .scene-footnote > p { font-size: 10px; }
}
@media (max-width: 360px) {
  :root { --gutter: 18px; }
  .header-actions { gap: 7px; }
  .site-header .brand-logo { width: 100px; }
  .header-contact { padding-inline: 8px; }
  .hero-actions .button { padding-inline: 12px; gap: 10px; }
  .process-grid { grid-template-columns: 1fr; }
  .footer-top { column-gap: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .primary:hover, .dark-button:hover, .cta-circle:hover, .hero-product-bottom > a:hover { transform: none; }
}