/*
Theme Name: Kucham Corporate
Theme URI: https://kuchamtech.com
Author: Kucham Technology
Description: Advanced manufacturing and engineering corporate theme.
Version: 4.1.0
Text Domain: kucham-corporate
*/

:root {
  --color-primary-dark: #073e4d;
  --color-primary: #006d7c;
  --color-primary-light: #00a5b5;
  --color-accent: #00a8b7;
  --color-bg: #ffffff;
  --color-bg-soft: #f5f8f9;
  --color-bg-blue-soft: #eff6f8;
  --color-dark: #073e4d;
  --color-text: #12212b;
  --color-text-secondary: #62727d;
  --color-border: #d9e3e7;
  --color-footer: #064452;
  --radius: 8px;
  --container-width: 1280px;
  --section-space: 120px;
  --ink: #15191d;
  --graphite: #252b31;
  --muted: #697178;
  --line: #d9dde0;
  --surface: #f4f5f5;
  --paper: #ffffff;
  --brand: #006d7c;
  --brand-deep: #073e4d;
  --signal: #00a8b7;
  --steel: #9aabb5;
  --max: 1280px;
  --header-height: 76px;
  --font: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-height); }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--font); font-size: 16px; line-height: 1.65; letter-spacing: 0; -webkit-font-smoothing: antialiased; }
body.nav-open, body.search-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
img { display: block; width: 100%; max-width: 100%; }
h1, h2, h3, p { overflow-wrap: break-word; }
.site-shell { width: min(calc(100% - 64px), var(--max)); margin-inline: auto; }
.skip-link { position: fixed; top: -80px; left: 16px; z-index: 1000; padding: 10px 16px; color: var(--paper); background: var(--ink); }
.skip-link:focus { top: 12px; }
.eyebrow { margin: 0 0 18px; color: var(--brand); font-family: Arial, sans-serif; font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow.light { color: rgba(255,255,255,.74); }
.button { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; padding: 10px 20px; border: 1px solid transparent; font-size: 13px; font-weight: 700; transition: color .2s ease, background .2s ease, border-color .2s ease; }
.button-primary { color: var(--paper); background: var(--brand); }
.button-primary:hover { background: var(--brand-deep); }
.button-light { color: var(--ink); background: var(--paper); border-color: var(--paper); }
.button-light:hover { color: var(--paper); background: var(--signal); border-color: var(--signal); }
.button-outline-light { color: var(--paper); border-color: rgba(255,255,255,.7); }
.button-outline-light:hover { color: var(--ink); background: var(--paper); }
.text-link { display: inline-flex; align-items: center; gap: 18px; font-size: 13px; font-weight: 700; }
.text-link b { font-size: 18px; font-weight: 400; transition: transform .2s ease; }
.text-link:hover b { transform: translateX(5px); }
.section { padding: 112px 0; }

.site-header { position: sticky; top: 0; z-index: 100; height: var(--header-height); border-bottom: 1px solid rgba(21,25,29,.12); background: rgba(255,255,255,.97); transition: box-shadow .2s ease; }
.site-header.is-scrolled { box-shadow: 0 8px 24px rgba(15,25,32,.08); }
.header-inner { height: 100%; display: grid; grid-template-columns: 230px 1fr auto; gap: 22px; align-items: center; }
.site-brand { display: inline-flex; align-items: center; gap: 12px; width: max-content; }
.brand-symbol { position: relative; width: 34px; height: 34px; display: block; border: 3px solid var(--brand); }
.brand-symbol::after { content: ""; position: absolute; inset: 7px; border: 2px solid var(--signal); }
.brand-symbol i { position: absolute; background: var(--paper); }
.brand-symbol i:first-child { top: -4px; left: 11px; width: 7px; height: 40px; transform: rotate(45deg); }
.brand-symbol i:last-child { top: 11px; left: -4px; width: 40px; height: 7px; transform: rotate(45deg); }
.brand-text { display: grid; line-height: 1.1; }
.brand-text strong { font-size: 20px; font-weight: 700; }
.brand-text small { margin-top: 6px; color: var(--muted); font-family: Arial, sans-serif; font-size: 8px; letter-spacing: .12em; }
.custom-logo-link { display: block; }
.custom-logo { width: auto; max-width: 210px; height: 42px; object-fit: contain; }
.desktop-navigation { height: 100%; }
.primary-menu { height: 100%; display: flex; align-items: center; justify-content: center; gap: 26px; margin: 0; padding: 0; list-style: none; }
.primary-item { height: 100%; display: flex; align-items: center; }
.primary-item > a { position: relative; height: 100%; display: flex; align-items: center; color: #2b3035; font-size: 13px; font-weight: 600; white-space: nowrap; }
.primary-item > a::after { content: ""; position: absolute; right: 0; bottom: -1px; left: 0; height: 2px; background: var(--brand); transform: scaleX(0); transform-origin: left; transition: transform .2s ease; }
.primary-item:hover > a::after, .primary-item.is-open > a::after, .primary-item > a:focus-visible::after { transform: scaleX(1); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.search-button, .menu-button { width: 42px; height: 42px; display: grid; place-items: center; padding: 0; border: 0; background: transparent; cursor: pointer; }
.search-button span { position: relative; width: 17px; height: 17px; display: block; border: 1.8px solid var(--ink); border-radius: 50%; }
.search-button span::after { content: ""; position: absolute; right: -5px; bottom: -3px; width: 7px; height: 1.8px; background: var(--ink); transform: rotate(45deg); }
.header-cta { min-height: 42px; padding-inline: 18px; }
.menu-button { display: none; position: relative; border: 1px solid var(--line); }
.menu-button span { position: absolute; left: 10px; width: 20px; height: 1px; background: var(--ink); transition: transform .2s ease, top .2s ease; }
.menu-button span:first-child { top: 16px; }
.menu-button span:last-child { top: 24px; }
.menu-button[aria-expanded="true"] span:first-child { top: 20px; transform: rotate(45deg); }
.menu-button[aria-expanded="true"] span:last-child { top: 20px; transform: rotate(-45deg); }

.mega-menu { position: fixed; top: var(--header-height); right: 0; left: 0; z-index: 90; visibility: hidden; padding: 38px 0 42px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper); box-shadow: 0 20px 40px rgba(17,27,34,.12); opacity: 0; transform: translateY(-8px); pointer-events: none; transition: opacity .18s ease, transform .18s ease, visibility .18s ease; }
.primary-item.is-open .mega-menu { visibility: visible; opacity: 1; transform: translateY(0); pointer-events: auto; }
.mega-layout { display: grid; grid-template-columns: 260px 1fr; gap: 62px; }
.mega-intro { padding-right: 34px; border-right: 1px solid var(--line); }
.mega-intro > span { color: var(--signal); font-family: Arial, sans-serif; font-size: 11px; font-weight: 700; }
.mega-intro h2 { margin: 12px 0 14px; font-size: 27px; font-weight: 600; line-height: 1.3; }
.mega-intro p { margin: 0 0 24px; color: var(--muted); font-size: 13px; line-height: 1.75; }
.mega-groups { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 30px 42px; }
.mega-group h3 { margin: 0 0 10px; font-size: 15px; font-weight: 700; }
.mega-group h3 a:hover { color: var(--brand); }
.mega-group ul { display: grid; gap: 5px; margin: 0; padding: 0; list-style: none; }
.mega-group li a { color: var(--muted); font-size: 12px; }
.mega-group li a:hover { color: var(--signal); }
.mobile-navigation { position: fixed; top: var(--header-height); right: 0; bottom: 0; left: 0; z-index: 95; overflow-y: auto; color: var(--paper); background: var(--ink); }
.mobile-navigation[hidden] { display: none; }
.mobile-nav-scroll { width: min(calc(100% - 36px), 720px); margin-inline: auto; padding: 18px 0 42px; }
.mobile-nav-row { min-height: 62px; display: grid; grid-template-columns: 1fr 48px; align-items: center; border-bottom: 1px solid rgba(255,255,255,.15); }
.mobile-nav-row > a { font-size: 19px; font-weight: 600; }
.mobile-nav-row button { align-self: stretch; padding: 0; border: 0; color: var(--paper); background: transparent; font-size: 24px; cursor: pointer; }
.mobile-submenu { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; padding: 12px 0 18px; border-bottom: 1px solid rgba(255,255,255,.15); }
.mobile-submenu[hidden] { display: none; }
.mobile-submenu a { display: grid; padding: 11px 0; }
.mobile-submenu strong { font-size: 13px; }
.mobile-submenu span { color: rgba(255,255,255,.52); font-size: 10px; }
.mobile-cta { width: 100%; margin-top: 24px; background: var(--signal); }
.search-panel { position: fixed; inset: 0; z-index: 120; color: var(--paper); background: rgba(13,18,22,.96); }
.search-panel[hidden] { display: none; }
.search-panel-inner { position: relative; min-height: 100%; display: grid; place-items: center; }
.search-panel form { width: min(760px, 100%); }
.search-panel label { display: block; margin-bottom: 24px; font-size: 28px; font-weight: 500; }
.search-panel form > div { display: grid; grid-template-columns: 1fr auto; border-bottom: 1px solid rgba(255,255,255,.6); }
.search-panel input { min-width: 0; padding: 18px 0; border: 0; outline: 0; color: var(--paper); background: transparent; font-size: 20px; }
.search-panel input::placeholder { color: rgba(255,255,255,.4); }
.search-panel form button { padding: 0 6px; border: 0; color: var(--paper); background: transparent; cursor: pointer; }
.search-panel-inner > button { position: absolute; top: 28px; right: 0; width: 44px; height: 44px; border: 1px solid rgba(255,255,255,.4); color: var(--paper); background: transparent; font-size: 26px; cursor: pointer; }

.home-hero { position: relative; height: min(790px, calc(100svh - var(--header-height))); min-height: 620px; overflow: hidden; color: var(--paper); background: var(--ink); }
.hero-image, .hero-overlay { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-image { object-fit: cover; object-position: center; }
.hero-overlay { background: linear-gradient(90deg, rgba(7,13,18,.88) 0%, rgba(7,13,18,.64) 42%, rgba(7,13,18,.10) 78%); }
.hero-content { position: relative; z-index: 1; height: 100%; display: flex; flex-direction: column; justify-content: center; padding-top: 30px; }
.hero-content h1 { max-width: 790px; margin: 0; font-size: clamp(46px, 5vw, 72px); font-weight: 600; line-height: 1.15; }
.hero-lead { max-width: 680px; margin: 26px 0 0; color: rgba(255,255,255,.78); font-size: 18px; line-height: 1.8; }
.hero-actions { display: flex; gap: 12px; margin-top: 32px; }
.hero-proof { position: absolute; right: 0; bottom: 0; left: 0; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid rgba(255,255,255,.28); }
.hero-proof span { min-height: 66px; display: flex; align-items: center; gap: 16px; border-right: 1px solid rgba(255,255,255,.28); color: rgba(255,255,255,.78); font-size: 12px; }
.hero-proof span:last-child { border-right: 0; }
.hero-proof b { color: var(--signal); font-family: Arial, sans-serif; font-size: 10px; }

.section-heading { margin-bottom: 52px; }
.section-heading h2 { max-width: 760px; margin: 0; font-size: clamp(34px, 3.3vw, 50px); font-weight: 500; line-height: 1.3; }
.split-heading { display: grid; grid-template-columns: 1.2fr .62fr; gap: 90px; align-items: end; }
.split-heading > p { margin: 0 0 6px; color: var(--muted); font-size: 15px; }
.service-section { background: var(--paper); }
.service-mosaic { display: grid; grid-template-columns: 1.15fr .85fr .85fr; border-top: 1px solid var(--ink); border-left: 1px solid var(--line); }
.service-block { position: relative; min-height: 228px; display: flex; flex-direction: column; justify-content: space-between; padding: 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper); transition: color .22s ease, background .22s ease; }
.service-block.feature { grid-row: span 2; min-height: 456px; color: var(--paper); background: var(--brand-deep); }
.service-block:nth-child(5) { grid-column: 2; }
.service-block > span { color: var(--signal); font-family: Arial, sans-serif; font-size: 11px; font-weight: 700; }
.service-block h3, .service-block h2 { margin: 0; font-size: 25px; font-weight: 600; line-height: 1.35; }
.service-block p { margin: 12px 34px 0 0; color: var(--muted); font-size: 13px; }
.service-block.feature h3, .service-block.feature h2 { max-width: 370px; font-size: 38px; }
.service-block.feature p { max-width: 420px; color: rgba(255,255,255,.64); font-size: 15px; }
.service-block > a { position: absolute; right: 24px; bottom: 24px; width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid currentColor; font-size: 16px; transition: transform .2s ease; }
.service-block:hover:not(.feature) { color: var(--paper); background: var(--graphite); }
.service-block:hover:not(.feature) p { color: rgba(255,255,255,.62); }
.service-block:hover > a { transform: translate(4px, -4px); }
.section-link { margin-top: 28px; }

.process-section { color: var(--paper); background: var(--ink); }
.process-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 96px; }
.process-copy h2 { margin: 0 0 22px; font-size: 44px; font-weight: 500; line-height: 1.28; }
.process-copy > p:last-child { max-width: 410px; margin: 0; color: rgba(255,255,255,.56); }
.process-track { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: 0; padding: 0; border-top: 1px solid rgba(255,255,255,.25); border-left: 1px solid rgba(255,255,255,.25); list-style: none; }
.process-track li { min-height: 160px; display: flex; flex-direction: column; justify-content: space-between; padding: 22px; border-right: 1px solid rgba(255,255,255,.25); border-bottom: 1px solid rgba(255,255,255,.25); }
.process-track span { color: var(--signal); font-family: Arial, sans-serif; font-size: 10px; }
.process-track strong { font-size: 16px; font-weight: 500; }

.capability-section { background: var(--surface); }
.capability-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 100px; align-items: center; }
.capability-copy h2 { margin: 0 0 24px; font-size: 44px; font-weight: 500; line-height: 1.32; }
.capability-copy > p:not(.eyebrow) { max-width: 500px; margin: 0 0 30px; color: var(--muted); }
.capability-matrix { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line); }
.matrix-column { display: grid; }
.matrix-column + .matrix-column { border-left: 1px solid var(--line); }
.matrix-column span, .matrix-column strong { min-height: 58px; display: flex; align-items: center; padding: 0 24px; border-bottom: 1px solid var(--line); }
.matrix-column > *:last-child { border-bottom: 0; }
.matrix-column span { color: var(--muted); font-size: 11px; font-weight: 700; text-transform: uppercase; }
.matrix-column strong { font-size: 15px; font-weight: 500; }
.matrix-column.accent { color: var(--paper); background: var(--brand); }
.matrix-column.accent span, .matrix-column.accent strong { border-color: rgba(255,255,255,.22); }
.matrix-column.accent span { color: rgba(255,255,255,.6); }

.industry-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 24px; }
.industry-feature { position: relative; min-height: 580px; overflow: hidden; color: var(--paper); background: var(--ink); }
.industry-feature::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(7,13,18,.88), rgba(7,13,18,.06) 72%); }
.industry-feature img { position: absolute; inset: 0; height: 100%; object-fit: cover; transition: transform .5s ease; }
.industry-feature:hover img { transform: scale(1.025); }
.industry-feature > div { position: absolute; right: 42px; bottom: 38px; left: 42px; z-index: 1; }
.industry-feature small { color: var(--signal); font-family: Arial, sans-serif; font-size: 10px; font-weight: 700; }
.industry-feature h3 { margin: 12px 0 10px; font-size: 38px; font-weight: 500; }
.industry-feature p { max-width: 510px; margin: 0 0 20px; color: rgba(255,255,255,.72); }
.industry-feature span { font-size: 13px; font-weight: 700; }
.industry-list { border-top: 1px solid var(--ink); }
.industry-list a { min-height: 193px; display: grid; grid-template-columns: 40px 1fr 24px; gap: 18px; align-items: center; padding: 24px 6px; border-bottom: 1px solid var(--line); }
.industry-list small { align-self: start; color: var(--signal); font-family: Arial, sans-serif; font-size: 10px; }
.industry-list h3 { margin: 0; font-size: 24px; font-weight: 600; }
.industry-list p { margin: 9px 0 0; color: var(--muted); font-size: 13px; }
.industry-list > a > span { font-size: 18px; transition: transform .2s ease; }
.industry-list a:hover > span { transform: translateX(5px); }

.structure-section { position: relative; min-height: 610px; display: flex; align-items: flex-end; overflow: hidden; color: var(--paper); background: var(--ink); }
.structure-section > img, .structure-shade { position: absolute; inset: 0; height: 100%; }
.structure-section > img { object-fit: cover; }
.structure-shade { background: linear-gradient(90deg, rgba(7,13,18,.82), rgba(7,13,18,.3)); }
.structure-content { position: relative; z-index: 1; padding-bottom: 62px; }
.structure-content h2 { max-width: 760px; margin: 0; font-size: 50px; font-weight: 500; line-height: 1.26; }
.structure-terms { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 34px; }
.structure-terms span { padding: 8px 13px; border: 1px solid rgba(255,255,255,.45); font-size: 12px; }

.case-section { background: var(--paper); }
.case-heading { display: grid; grid-template-columns: 1fr auto; align-items: end; }
.case-heading .eyebrow { grid-column: 1 / -1; }
.case-layout { display: grid; grid-template-columns: 1.08fr .92fr; gap: 56px; }
.case-feature { border-top: 1px solid var(--ink); }
.case-visual { min-height: 310px; display: flex; flex-direction: column; justify-content: space-between; padding: 28px; color: var(--paper); background: linear-gradient(135deg, var(--brand-deep), var(--graphite)); }
.case-visual span { font-family: Arial, sans-serif; font-size: 10px; }
.case-visual strong { max-width: 440px; font-size: 38px; font-weight: 500; line-height: 1.3; }
.case-copy { padding-top: 28px; }
.case-copy > p { margin: 0 0 8px; color: var(--signal); font-size: 11px; font-weight: 700; }
.case-copy h3 { margin: 0; font-size: 23px; font-weight: 500; line-height: 1.55; }
.case-copy dl { display: grid; grid-template-columns: repeat(3, 1fr); margin: 26px 0 0; border-top: 1px solid var(--line); }
.case-copy dl > div { padding: 17px 16px 0 0; }
.case-copy dt { color: var(--muted); font-size: 10px; }
.case-copy dd { margin: 5px 0 0; font-size: 12px; font-weight: 600; }
.case-list { border-top: 1px solid var(--ink); }
.case-list a { min-height: 170px; display: grid; grid-template-columns: 40px 1fr 28px; gap: 18px; align-items: center; border-bottom: 1px solid var(--line); }
.case-list > a > span { align-self: start; padding-top: 24px; color: var(--signal); font-family: Arial, sans-serif; font-size: 10px; }
.case-list small { color: var(--muted); font-size: 11px; }
.case-list h3 { margin: 9px 0 0; font-size: 18px; font-weight: 500; line-height: 1.55; }
.case-list b { font-size: 18px; font-weight: 400; transition: transform .2s ease; }
.case-list a:hover b { transform: translateX(5px); }

.resource-section { background: var(--surface); }
.resource-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 86px; }
.resource-feature > span { color: var(--signal); font-size: 11px; font-weight: 700; }
.resource-feature h2 { max-width: 620px; margin: 22px 0; font-size: 39px; font-weight: 500; line-height: 1.35; }
.resource-feature > p:not(.eyebrow) { max-width: 560px; margin: 0 0 28px; color: var(--muted); }
.resource-list { border-top: 1px solid var(--ink); }
.resource-list a:not(.resource-all) { min-height: 112px; display: grid; grid-template-columns: 90px 1fr 20px; gap: 20px; align-items: center; border-bottom: 1px solid var(--line); }
.resource-list small { color: var(--muted); font-size: 11px; }
.resource-list h3 { margin: 0; font-size: 17px; font-weight: 500; line-height: 1.45; }
.resource-list > a > span { transition: transform .2s ease; }
.resource-list a:hover > span { transform: translateX(5px); }
.resource-all { display: inline-flex; margin-top: 26px; font-size: 13px; font-weight: 700; }

.project-cta { padding: 78px 0; color: var(--paper); background: var(--signal); }
.project-cta-inner { display: grid; grid-template-columns: 1fr .66fr; gap: 90px; align-items: end; }
.project-cta h2 { margin: 0; font-size: 48px; font-weight: 500; line-height: 1.25; }
.project-cta-inner > div:last-child p { max-width: 480px; margin: 0 0 26px; color: rgba(255,255,255,.82); }
.site-footer { padding: 64px 0 26px; color: rgba(255,255,255,.62); background: var(--ink); }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, .72fr) 1fr; gap: 48px; }
.footer-intro { padding-right: 24px; }
.footer-brand { display: grid; width: max-content; color: var(--paper); }
.footer-brand strong { font-size: 24px; }
.footer-brand span { margin-top: 4px; font-family: Arial, sans-serif; font-size: 9px; letter-spacing: .12em; }
.footer-intro p { max-width: 300px; margin: 24px 0 0; font-size: 12px; }
.footer-column, .footer-contact { display: grid; align-content: start; gap: 8px; }
.footer-column h3, .footer-contact h3 { margin: 0 0 12px; color: var(--paper); font-size: 12px; }
.footer-column a, .footer-contact a, .footer-contact p { margin: 0; font-size: 11px; }
.footer-column a:hover, .footer-contact a:hover { color: var(--paper); }
.qr-placeholder { width: 86px; height: 86px; display: grid; place-items: center; margin-top: 12px; border: 1px solid rgba(255,255,255,.25); text-align: center; font-size: 9px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; margin-top: 54px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.15); font-size: 10px; }

.overview-hero { padding: 76px 0 86px; color: var(--paper); background: var(--ink); }
.breadcrumbs { display: flex; gap: 9px; margin-bottom: 62px; color: rgba(255,255,255,.5); font-size: 11px; }
.breadcrumbs a:hover { color: var(--paper); }
.overview-hero h1 { max-width: 940px; margin: 0; font-size: 56px; font-weight: 500; line-height: 1.2; }
.overview-hero > .site-shell > p:last-child { max-width: 700px; margin: 24px 0 0; color: rgba(255,255,255,.62); font-size: 17px; }
.overview-section { background: var(--surface); }
.overview-mosaic .service-block { min-height: 250px; }
.overview-mosaic .service-block.feature { min-height: 500px; }
.editor-content { max-width: 860px; margin: 72px auto 0; }
.editor-content.site-shell { margin-top: 0; padding: 80px 0; }
.editor-content h2, .editor-content h3 { margin: 1.8em 0 .6em; font-weight: 500; }
.editor-content p, .editor-content li { color: #3d444a; }

.screen-reader-text { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
body.admin-bar .site-header { top: 32px; }
body.admin-bar .mega-menu, body.admin-bar .mobile-navigation { top: calc(var(--header-height) + 32px); }

@media (max-width: 1180px) {
  .header-inner { grid-template-columns: 210px 1fr auto; }
  .primary-menu { gap: 18px; }
  .primary-item > a { font-size: 12px; }
  .header-cta { display: none; }
  .footer-grid { grid-template-columns: 1.4fr repeat(3, 1fr); }
  .footer-contact { grid-column: 1 / -1; grid-template-columns: 120px 1fr 1fr auto; align-items: start; padding-top: 26px; border-top: 1px solid rgba(255,255,255,.15); }
  .qr-placeholder { margin-top: 0; }
}

@media (max-width: 980px) {
  .site-shell { width: min(calc(100% - 40px), var(--max)); }
  .header-inner { grid-template-columns: 1fr auto; }
  .desktop-navigation { display: none; }
  .header-cta { display: inline-flex; }
  .menu-button { display: grid; }
  .service-mosaic { grid-template-columns: 1fr 1fr; }
  .service-block.feature { grid-row: auto; grid-column: 1 / -1; min-height: 330px; }
  .service-block:nth-child(5) { grid-column: auto; }
  .process-layout, .capability-layout, .project-cta-inner { grid-template-columns: 1fr; gap: 52px; }
  .industry-grid, .case-layout, .resource-layout { grid-template-columns: 1fr; }
  .industry-feature { min-height: 500px; }
  .industry-list { display: grid; grid-template-columns: repeat(3, 1fr); }
  .industry-list a { min-height: 180px; grid-template-columns: 28px 1fr; align-content: center; border-right: 1px solid var(--line); }
  .industry-list > a > span { display: none; }
  .case-layout { gap: 44px; }
  .resource-layout { gap: 50px; }
  .footer-grid { grid-template-columns: 1.4fr repeat(3, 1fr); }
}

@media (max-width: 720px) {
  :root { --header-height: 66px; }
  .site-shell { width: min(calc(100% - 30px), var(--max)); }
  .section { padding: 74px 0; }
  .brand-symbol { width: 30px; height: 30px; }
  .brand-text strong { font-size: 18px; }
  .header-cta { display: none; }
  .mobile-submenu { grid-template-columns: 1fr; }
  .search-panel label { font-size: 22px; }
  .home-hero { height: calc(100svh - var(--header-height)); min-height: 590px; max-height: 760px; }
  .hero-image { object-position: 60% center; }
  .hero-overlay { background: linear-gradient(0deg, rgba(7,13,18,.92) 0%, rgba(7,13,18,.58) 64%, rgba(7,13,18,.18) 100%); }
  .hero-content { justify-content: flex-end; padding: 0 0 90px; }
  .hero-content h1 { font-size: 42px; }
  .hero-lead { margin-top: 18px; font-size: 15px; line-height: 1.75; }
  .hero-actions { margin-top: 24px; }
  .hero-actions .button { flex: 1; padding-inline: 10px; }
  .hero-proof { grid-template-columns: 1fr; padding-top: 8px; border-top: 0; }
  .hero-proof span { min-height: 24px; border-right: 0; font-size: 10px; }
  .hero-proof span:nth-child(n+2) { display: none; }
  .split-heading { grid-template-columns: 1fr; gap: 22px; }
  .section-heading { margin-bottom: 36px; }
  .section-heading h2 { font-size: 34px; }
  .service-mosaic { grid-template-columns: 1fr; border-left: 0; }
  .service-block, .service-block.feature { grid-column: auto; min-height: 220px; padding: 24px 22px; }
  .service-block.feature { min-height: 300px; }
  .service-block.feature h3, .service-block.feature h2 { font-size: 30px; }
  .process-copy h2, .capability-copy h2 { font-size: 34px; }
  .process-track { grid-template-columns: 1fr 1fr; }
  .process-track li { min-height: 120px; }
  .capability-matrix { grid-template-columns: 1fr; }
  .matrix-column + .matrix-column { border-top: 1px solid var(--line); border-left: 0; }
  .industry-feature { min-height: 460px; }
  .industry-feature > div { right: 24px; bottom: 26px; left: 24px; }
  .industry-feature h3 { font-size: 30px; }
  .industry-list { grid-template-columns: 1fr; }
  .industry-list a { min-height: 134px; border-right: 0; }
  .structure-section { min-height: 520px; }
  .structure-shade { background: linear-gradient(0deg, rgba(7,13,18,.9), rgba(7,13,18,.25)); }
  .structure-content { padding-bottom: 38px; }
  .structure-content h2 { font-size: 36px; }
  .case-heading { grid-template-columns: 1fr; gap: 22px; }
  .case-visual { min-height: 270px; }
  .case-visual strong { font-size: 31px; }
  .case-copy dl { grid-template-columns: 1fr; }
  .case-copy dl > div { display: grid; grid-template-columns: 60px 1fr; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--line); }
  .case-copy dd { margin: 0; }
  .case-list a { min-height: 136px; }
  .resource-feature h2 { font-size: 31px; }
  .resource-list a:not(.resource-all) { grid-template-columns: 76px 1fr 18px; }
  .project-cta h2 { font-size: 36px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 38px 24px; }
  .footer-intro, .footer-contact { grid-column: 1 / -1; }
  .footer-contact { display: grid; grid-template-columns: 1fr 1fr; }
  .footer-bottom { display: grid; }
  .overview-hero { padding: 50px 0 64px; }
  .breadcrumbs { margin-bottom: 44px; }
  .overview-hero h1 { font-size: 39px; }
  .overview-hero > .site-shell > p:last-child { font-size: 15px; }
  body.admin-bar .site-header { top: 46px; }
  body.admin-bar .mega-menu, body.admin-bar .mobile-navigation { top: calc(var(--header-height) + 46px); }
}

/* V4 research and advanced manufacturing homepage */
.home-v3 {
  color: var(--color-text);
  background: var(--color-bg);
}
.home-v3 .section { padding: 72px 0; }
.home-v3 h1, .home-v3 h2, .home-v3 h3 { color: inherit; letter-spacing: 0; }
.home-v3 .section-heading { margin-bottom: 34px; }
.home-v3 .section-heading h2, .compact-heading h2 { margin: 0; font-size: clamp(32px, 2.8vw, 38px); font-weight: 700; line-height: 1.2; }
.home-v3 .split-heading { grid-template-columns: minmax(0, 1fr) minmax(280px, .72fr); gap: 48px; }
.home-v3 .split-heading > p { max-width: 480px; justify-self: end; color: var(--color-text-secondary); font-size: 15px; line-height: 1.75; }
.home-v3 .eyebrow, .compact-heading .eyebrow { margin-bottom: 10px; color: var(--color-primary); font-size: 11px; letter-spacing: .08em; }
.home-v3 .eyebrow.light { color: rgba(255,255,255,.7); }
.site-shell { width: min(calc(100% - 64px), 1320px); }
.site-header { height: 74px; background: rgba(255,255,255,.98); border-bottom-color: var(--color-border); }
.home .site-header { background: rgba(255,255,255,.98); }
.header-inner { grid-template-columns: 235px 1fr auto; gap: 18px; }
.primary-menu { gap: 24px; }
.primary-item > a { color: var(--color-text); font-size: 14px; }
.primary-item > a::after { background: var(--color-accent); }
.home .primary-item:first-child > a::after { transform: scaleX(1); }
.button-primary, .button-accent { color: #fff; background: var(--color-primary); border-color: var(--color-primary); }
.button-primary:hover, .button-accent:hover { color: #fff; background: var(--color-primary-dark); border-color: var(--color-primary-dark); }
.mega-menu { border-color: var(--color-border); background: #fff; box-shadow: 0 18px 36px rgba(7,62,77,.11); }
.mega-intro { border-color: var(--color-border); }
.mega-intro > span, .mega-group li a:hover { color: var(--color-accent); }
.mega-scene-media { position: relative; overflow: hidden; padding: 0; background: var(--color-bg-soft); }
.mega-scene-media img { height: 100%; object-fit: cover; filter: saturate(.82); }
.mega-scene-media span { position: absolute; right: 10px; bottom: 10px; padding: 4px 7px; color: #fff; background: rgba(7,62,77,.78); font-size: 9px; }
.mobile-navigation { background: var(--color-primary-dark); }
.mobile-cta { background: var(--color-accent); }

.home-hero-v3 { height: 670px; min-height: 620px; align-items: stretch; color: #fff; background: var(--color-primary-dark); }
.home-hero-v3::before { content: ""; position: absolute; inset: 0; background: linear-gradient(110deg, rgba(7,62,77,.98) 0%, rgba(7,62,77,.9) 42%, rgba(0,109,124,.5) 100%); }
.hero-grid { opacity: .12; background-size: 76px 76px; }
.hero-v3-layout { height: calc(100% - 94px); grid-template-columns: 42fr 58fr; gap: 46px; padding: 50px 0 44px; }
.hero-v3-copy h1 { max-width: 590px; font-size: clamp(56px, 4.5vw, 64px); font-weight: 800; line-height: 1.12; }
.hero-v3-copy h1 span { color: #42c8d1; }
.hero-v3-copy > p:not(.eyebrow) { max-width: 580px; margin-top: 22px; color: rgba(255,255,255,.78); font-size: 16px; line-height: 1.85; }
.hero-actions { margin-top: 26px; }
.home-hero-v3 .button { min-height: 46px; padding-inline: 21px; }
.home-hero-v3 .button-accent { background: var(--color-accent); border-color: var(--color-accent); }
.home-hero-v3 .button-accent:hover { background: #008d9b; border-color: #008d9b; }
.hero-v3-visual { height: 100%; aspect-ratio: auto; border-color: rgba(255,255,255,.18); border-radius: 4px; background: #123e48; }
.hero-v3-visual::after { background: linear-gradient(90deg, rgba(7,62,77,.35), transparent 44%), linear-gradient(0deg, rgba(7,62,77,.72), transparent 38%); }
.hero-v3-visual img { filter: saturate(.8) contrast(1.03); }
.hero-v3-visual figcaption small { color: rgba(255,255,255,.68); letter-spacing: .08em; }
.hero-annotations { position: absolute; top: 26px; right: 24px; z-index: 3; display: grid; gap: 6px; justify-items: end; }
.hero-annotations span { padding: 5px 9px; border-right: 2px solid var(--color-accent); color: rgba(255,255,255,.84); background: rgba(7,62,77,.58); font-size: 10px; }
.capability-strip { position: absolute; right: 0; bottom: 0; left: 0; z-index: 4; height: 94px; background: rgba(4,48,59,.9); border-top: 1px solid rgba(255,255,255,.16); }
.capability-strip > .site-shell { height: 100%; display: grid; grid-template-columns: repeat(4, 1fr); }
.capability-strip > .site-shell > div { position: relative; display: grid; grid-template-columns: 26px 1fr; grid-template-rows: auto auto; align-content: center; column-gap: 12px; padding: 14px 24px; border-right: 1px solid rgba(255,255,255,.14); }
.capability-strip > .site-shell > div:first-child { border-left: 1px solid rgba(255,255,255,.14); }
.capability-strip i { grid-row: 1 / 3; width: 18px; height: 18px; margin-top: 3px; border: 1px solid #52cbd3; transform: rotate(45deg); }
.capability-strip strong { color: #fff; font-size: 14px; }
.capability-strip span { color: rgba(255,255,255,.58); font-size: 10px; line-height: 1.5; }

.products-v4 { background: #fff; }
.products-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.product-card { position: relative; min-width: 0; display: grid; grid-template-rows: auto 1fr; overflow: hidden; border: 1px solid #dde6ea; border-radius: 7px; background: #fff; transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease; }
.product-card:hover { transform: translateY(-3px); border-color: #b8d3d8; box-shadow: 0 12px 30px rgba(7,62,77,.08); }
.product-media { aspect-ratio: 16 / 8; overflow: hidden; background: var(--color-bg-soft); }
.product-media img { height: 100%; object-fit: cover; filter: saturate(.82); transition: transform .35s ease; }
.product-card:hover .product-media img { transform: scale(1.02); }
.product-card-copy { position: relative; min-height: 132px; padding: 20px 54px 20px 22px; }
.product-card-copy small { color: var(--color-accent); font-family: Arial, sans-serif; font-size: 10px; font-weight: 700; }
.product-card-copy h3 { margin: 7px 0 7px; font-size: 21px; line-height: 1.35; }
.product-card-copy p { margin: 0; color: var(--color-text-secondary); font-size: 13px; line-height: 1.65; }
.product-card-copy > a { position: absolute; right: 20px; bottom: 20px; font-size: 20px; transition: transform .25s ease; }
.product-card:hover .product-card-copy > a { color: var(--color-accent); transform: translateX(4px); }

.materials-v4 { background: var(--color-bg-blue-soft); }
.process-row { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); margin: 0; padding: 0; border: 1px solid var(--color-border); border-radius: 7px; background: #fff; list-style: none; }
.process-row > li { position: relative; min-width: 0; min-height: 250px; padding: 26px 22px; border-right: 1px solid var(--color-border); }
.process-row > li:last-child { border-right: 0; }
.process-row > li > span { color: var(--color-accent); font-family: Arial, sans-serif; font-size: 11px; font-weight: 700; }
.process-row h3 { margin: 42px 0 14px; font-size: 19px; line-height: 1.35; }
.process-row p { margin: 0; color: var(--color-text-secondary); font-size: 12px; line-height: 1.8; }
.process-row i { position: absolute; top: 49px; right: -12px; z-index: 2; width: 24px; height: 24px; display: grid; place-items: center; border: 1px solid var(--color-border); border-radius: 50%; color: var(--color-primary); background: #fff; font-size: 12px; font-style: normal; }

.overview-v4 { background: #fff; }
.overview-grid { display: grid; grid-template-columns: minmax(0, 58fr) minmax(0, 42fr); gap: 34px; align-items: start; }
.compact-heading { min-height: 76px; display: flex; justify-content: space-between; gap: 22px; align-items: end; margin-bottom: 24px; }
.compact-heading .text-link { margin-bottom: 5px; color: var(--color-primary); white-space: nowrap; }
.application-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.application-card-v4 { min-width: 0; overflow: hidden; border: 1px solid var(--color-border); border-radius: 7px; background: #fff; transition: transform .3s ease, border-color .3s ease; }
.application-card-v4:hover { transform: translateY(-3px); border-color: #a9ccd2; }
.application-card-media { aspect-ratio: 4 / 2.35; overflow: hidden; background: var(--color-bg-soft); }
.application-card-media img { height: 100%; object-fit: cover; filter: saturate(.78); transition: transform .35s ease; }
.application-card-v4:hover img { transform: scale(1.02); }
.application-card-copy { position: relative; min-height: 108px; padding: 16px 42px 17px 17px; }
.application-card-copy small { color: var(--color-accent); font-size: 10px; font-weight: 700; }
.application-card-copy h3 { margin: 5px 0 7px; font-size: 19px; }
.application-card-copy p { margin: 0; color: var(--color-text-secondary); font-size: 11px; line-height: 1.6; }
.application-card-copy > span { position: absolute; right: 16px; bottom: 16px; font-size: 18px; transition: transform .25s ease; }
.application-card-v4:hover .application-card-copy > span { transform: translateX(4px); }
.application-card-v4.application-primary .application-card-copy { color: #fff; background: var(--color-primary); }
.application-card-v4.application-primary .application-card-copy p { color: rgba(255,255,255,.72); }
.application-card-v4.application-primary .application-card-copy small { color: #78e3e9; }
.environment-panel { min-width: 0; padding-left: 30px; border-left: 1px solid var(--color-border); }
.environment-main { position: relative; aspect-ratio: 16 / 7; margin: 0; overflow: hidden; border-radius: 7px; background: var(--color-bg-soft); }
.environment-main::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(7,62,77,.72), transparent 58%); }
.environment-main img { height: 100%; object-fit: cover; filter: saturate(.78); }
.environment-main figcaption { position: absolute; right: 18px; bottom: 16px; left: 18px; z-index: 2; display: flex; justify-content: space-between; gap: 18px; align-items: end; color: #fff; }
.environment-main figcaption span { font-size: 9px; text-transform: uppercase; }
.environment-main figcaption strong { font-size: 15px; text-align: right; }
.environment-thumbs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-top: 10px; }
.environment-thumbs figure { margin: 0; }
.environment-thumbs img { aspect-ratio: 16 / 9; height: auto; object-fit: cover; border-radius: 4px; filter: saturate(.78); }
.environment-thumbs figcaption { margin-top: 7px; color: var(--color-text-secondary); font-size: 10px; }
.environment-copy { margin: 22px 0 0; padding-top: 20px; border-top: 1px solid var(--color-border); color: var(--color-text-secondary); font-size: 14px; line-height: 1.8; }

.knowledge-v4 { background: var(--color-bg-soft); }
.knowledge-grid { display: grid; grid-template-columns: minmax(0, 58fr) minmax(0, 42fr); gap: 34px; align-items: start; }
.case-strip { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; }
.case-card-v4 { min-width: 0; overflow: hidden; border: 1px solid var(--color-border); border-radius: 6px; background: #fff; transition: transform .3s ease; }
.case-card-v4:hover { transform: translateY(-3px); }
.case-card-media { aspect-ratio: 4 / 3; overflow: hidden; background: #e9eff1; }
.case-card-media img { height: 100%; object-fit: cover; filter: saturate(.76); transition: transform .35s ease; }
.case-card-v4:hover img { transform: scale(1.02); }
.case-card-v4 > div:last-child { position: relative; min-height: 112px; padding: 14px 30px 15px 13px; }
.case-card-v4 small { color: var(--color-text-secondary); font-size: 9px; }
.case-card-v4 h3 { margin: 7px 0 0; font-size: 14px; line-height: 1.5; }
.case-card-v4 span { position: absolute; right: 12px; bottom: 13px; transition: transform .25s ease; }
.case-card-v4:hover span { color: var(--color-accent); transform: translateX(4px); }
.insights-panel { min-width: 0; padding-left: 30px; border-left: 1px solid var(--color-border); }
.insights-list-v4 { border-top: 1px solid var(--color-primary-dark); }
.insights-list-v4 > a { min-height: 82px; display: grid; grid-template-columns: 20px minmax(0, 1fr) auto; gap: 12px; align-items: center; border-bottom: 1px solid var(--color-border); }
.insights-list-v4 > a > span { color: var(--color-accent); transition: transform .25s ease; }
.insights-list-v4 > a:hover > span { transform: translateX(4px); }
.insights-list-v4 small { color: var(--color-text-secondary); font-size: 9px; }
.insights-list-v4 h3 { margin: 4px 0 0; font-size: 14px; font-weight: 600; line-height: 1.45; }
.insights-list-v4 time { color: var(--color-text-secondary); font-family: Arial, sans-serif; font-size: 10px; }

.site-footer { padding: 50px 0 22px; color: rgba(255,255,255,.68); background: var(--color-footer); }
.footer-grid { grid-template-columns: 1.35fr repeat(4, .72fr) 1.12fr .86fr; gap: 24px; }
.footer-brand strong { font-size: 22px; }
.footer-column, .footer-contact, .footer-wechat { display: grid; align-content: start; gap: 7px; }
.footer-column h3, .footer-contact h3, .footer-wechat h3 { margin: 0 0 10px; color: #fff; font-size: 12px; }
.footer-column a, .footer-contact a, .footer-wechat span { font-size: 10px; line-height: 1.65; }
.footer-wechat img { width: 88px; height: 88px; object-fit: contain; margin-bottom: 4px; background: #fff; }
.footer-bottom { justify-content: flex-start; flex-wrap: wrap; margin-top: 38px; border-color: rgba(255,255,255,.17); }

@media (max-width: 1199px) {
  .site-shell { width: min(calc(100% - 48px), 1080px); }
  .home-v3 .section { padding: 64px 0; }
  .hero-v3-layout { grid-template-columns: 44fr 56fr; gap: 30px; }
  .hero-v3-copy h1 { font-size: 52px; }
  .process-row { grid-template-columns: repeat(3, 1fr); }
  .process-row > li { min-height: 205px; border-bottom: 1px solid var(--color-border); }
  .process-row > li:nth-child(3n) { border-right: 0; }
  .process-row > li:nth-child(n+4) { border-bottom: 0; }
  .process-row > li:nth-child(3) i { display: none; }
  .overview-grid, .knowledge-grid { grid-template-columns: minmax(0, 56fr) minmax(0, 44fr); gap: 26px; }
  .environment-panel, .insights-panel { padding-left: 24px; }
  .application-card-copy { min-height: 116px; }
  .case-strip { grid-template-columns: repeat(3, 1fr); }
  .case-card-v4:nth-child(n+4) { display: none; }
  .footer-grid { grid-template-columns: 1.25fr repeat(3, 1fr); gap: 30px; }
  .footer-contact, .footer-wechat { grid-column: auto; }
}

@media (max-width: 980px) {
  .home-hero-v3 { height: auto; min-height: 0; display: block; }
  .hero-v3-layout { height: auto; grid-template-columns: 1fr 1fr; padding: 52px 0 38px; }
  .hero-v3-copy h1 { font-size: 46px; }
  .capability-strip { position: relative; height: auto; }
  .capability-strip > .site-shell > div { min-height: 86px; padding-inline: 16px; }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .overview-grid, .knowledge-grid { grid-template-columns: 1fr; gap: 50px; }
  .environment-panel, .insights-panel { padding-left: 0; border-left: 0; }
  .case-strip { grid-template-columns: repeat(5, minmax(138px, 1fr)); overflow-x: auto; padding-bottom: 8px; scroll-snap-type: x proximity; }
  .case-card-v4, .case-card-v4:nth-child(n+4) { display: block; scroll-snap-align: start; }
}

@media (max-width: 767px) {
  .site-shell { width: min(calc(100% - 32px), 640px); }
  .home-v3 .section { padding: 56px 0; }
  .home-v3 .split-heading { grid-template-columns: 1fr; gap: 12px; }
  .home-v3 .split-heading > p { justify-self: start; }
  .hero-v3-layout { grid-template-columns: 1fr; gap: 30px; padding: 44px 0 30px; }
  .hero-v3-copy h1 { font-size: 43px; }
  .hero-v3-copy > p:not(.eyebrow) { font-size: 14px; }
  .hero-actions { flex-direction: row; flex-wrap: wrap; }
  .hero-v3-visual { height: auto; aspect-ratio: 4 / 3; }
  .hero-v3-visual figcaption { display: flex; }
  .hero-v3-visual figcaption small { text-align: right; }
  .capability-strip > .site-shell { grid-template-columns: 1fr 1fr; }
  .capability-strip > .site-shell > div { min-height: 80px; border-bottom: 1px solid rgba(255,255,255,.14); }
  .products-grid { grid-template-columns: 1fr; }
  .product-card-copy { min-height: 124px; }
  .process-row { grid-template-columns: 1fr; }
  .process-row > li { min-height: 0; padding: 20px 50px 20px 22px; border-right: 0; border-bottom: 1px solid var(--color-border) !important; }
  .process-row > li:last-child { border-bottom: 0 !important; }
  .process-row h3 { margin: 8px 0; }
  .process-row i, .process-row > li:nth-child(3) i { top: 50%; right: 16px; display: grid; transform: translateY(-50%) rotate(90deg); }
  .compact-heading { min-height: 0; align-items: end; }
  .application-cards { grid-template-columns: 1fr 1fr; gap: 10px; }
  .application-card-media { aspect-ratio: 4 / 3; }
  .application-card-copy { min-height: 126px; padding: 14px 30px 14px 14px; }
  .application-card-copy h3 { font-size: 17px; }
  .application-card-copy p { font-size: 10px; }
  .environment-thumbs { grid-template-columns: 1fr; }
  .environment-thumbs figure { display: grid; grid-template-columns: 120px 1fr; gap: 12px; align-items: center; }
  .environment-thumbs figcaption { margin-top: 0; font-size: 11px; }
  .case-strip { margin-right: -16px; }
  .case-card-v4 { min-width: 156px; }
  .insights-list-v4 > a { grid-template-columns: 18px 1fr; padding: 14px 0; }
  .insights-list-v4 time { grid-column: 2; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-intro { grid-column: 1 / -1; }
  .footer-contact, .footer-wechat { grid-column: auto; }
}

@media (max-width: 430px) {
  .hero-v3-copy h1 { font-size: 39px; }
  .home-hero-v3 .button { width: 100%; }
  .hero-v3-visual figcaption { display: grid; }
  .hero-v3-visual figcaption small { text-align: left; }
  .capability-strip > .site-shell { grid-template-columns: 1fr; }
  .capability-strip > .site-shell > div { border-left: 1px solid rgba(255,255,255,.14); }
  .application-card-copy { min-height: 136px; }
  .compact-heading .text-link { font-size: 11px; }
  .footer-contact, .footer-wechat { grid-column: 1 / -1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

/* V3 precision engineering homepage */
.home-v3 { color: var(--color-text); background: var(--color-bg); }
.home-v3 .section { padding: var(--section-space) 0; }
.home-v3 .section-heading { margin-bottom: 54px; }
.home-v3 .section-heading h2 { font-size: clamp(36px, 3.15vw, 44px); font-weight: 600; line-height: 1.2; }
.home-v3 .split-heading { grid-template-columns: minmax(0, 1.15fr) minmax(300px, .65fr); }
.home-v3 .split-heading > p { max-width: 500px; justify-self: end; font-size: 16px; line-height: 1.85; }
.home .site-header { background: rgba(248,250,251,.96); }
.home .site-header:not(.is-scrolled) { border-bottom-color: rgba(255,255,255,.18); }
.reveal-item { opacity: 0; transform: translateY(14px); transition: opacity .4s ease, transform .4s ease; }
.reveal-item.is-visible { opacity: 1; transform: translateY(0); }

.home-hero-v3 { position: relative; min-height: 760px; display: flex; align-items: center; overflow: hidden; color: #fff; background: var(--color-dark); }
.hero-grid { position: absolute; inset: 0; opacity: .22; background-image: linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(90deg, #000, transparent 80%); }
.hero-v3-layout { position: relative; z-index: 1; display: grid; grid-template-columns: .85fr 1.15fr; gap: 56px; align-items: center; padding: 118px 0 72px; }
.hero-v3-copy h1 { max-width: 650px; margin: 0; font-size: clamp(52px, 4.6vw, 66px); font-weight: 600; line-height: 1.12; }
.hero-v3-copy > p:not(.eyebrow) { max-width: 610px; margin: 28px 0 0; color: rgba(255,255,255,.72); font-size: 17px; line-height: 1.85; }
.hero-v3-visual { position: relative; width: 100%; aspect-ratio: 1.12 / 1; margin: 0; overflow: hidden; border: 1px solid rgba(255,255,255,.18); background: #182229; }
.hero-v3-visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(16,24,29,.35), transparent 40%), linear-gradient(0deg, rgba(16,24,29,.72), transparent 36%); }
.hero-v3-visual img { height: 100%; object-fit: cover; object-position: 67% center; }
.hero-v3-visual figcaption { position: absolute; right: 24px; bottom: 22px; left: 24px; z-index: 2; display: flex; justify-content: space-between; align-items: end; gap: 20px; }
.hero-v3-visual figcaption span { font-family: Arial, sans-serif; font-size: 10px; font-weight: 700; letter-spacing: .12em; }
.hero-v3-visual figcaption small { max-width: 260px; color: rgba(255,255,255,.58); font-size: 11px; text-align: right; }
.hero-marker { position: absolute; z-index: 2; padding: 6px 8px; border-left: 1px solid var(--color-accent); color: rgba(255,255,255,.72); font-family: Arial, sans-serif; font-size: 9px; font-style: normal; letter-spacing: .08em; }
.marker-a { top: 18%; right: 8%; }.marker-b { top: 48%; left: 7%; }

.products-v3 { background: #fff; }
.products-bento { display: grid; grid-template-columns: 1.12fr .88fr .88fr; grid-template-rows: 330px 270px 270px; gap: 16px; }
.product-tile { position: relative; display: grid; grid-template-rows: minmax(118px, 1fr) auto; overflow: hidden; border: 1px solid var(--color-border); border-radius: var(--radius); background: var(--color-bg); }
.product-tile.product-primary { grid-row: span 2; }
.product-tile:nth-child(5) { grid-column: 2 / span 2; grid-template-columns: .8fr 1.2fr; grid-template-rows: 1fr; }
.media-placeholder, .application-media, .case-media-placeholder, .evidence-media, .complex-placeholder { display: grid; place-items: center; padding: 24px; color: #7b878d; background: linear-gradient(135deg, #edf1f2, #dfe5e7); }
.media-placeholder::before, .application-media::before, .case-media-placeholder::before, .evidence-media::before, .complex-placeholder::before { content: ""; width: 38px; height: 38px; margin-bottom: 12px; border: 1px solid #aab5ba; background: linear-gradient(135deg, transparent 48%, #aab5ba 49%, #aab5ba 51%, transparent 52%); }
.media-placeholder span, .application-media span, .case-media-placeholder span, .evidence-media span, .complex-placeholder span { font-size: 12px; text-align: center; }
.product-tile-copy { position: relative; padding: 24px 26px 26px; }
.product-tile-copy > small { color: var(--color-accent); font-family: Arial, sans-serif; font-size: 10px; font-weight: 700; }
.product-tile h3 { margin: 12px 38px 8px 0; font-size: 24px; font-weight: 600; line-height: 1.3; }
.product-primary h3 { font-size: 30px; }
.product-tile p { margin: 0; color: var(--color-text-secondary); font-size: 13px; line-height: 1.75; }
.product-tile-copy > a { position: absolute; top: 24px; right: 24px; font-size: 20px; }
.tag-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.tag-row span { padding: 5px 8px; border: 1px solid var(--color-border); color: var(--color-text-secondary); font-size: 10px; }
.product-tile:hover .media-placeholder { background: linear-gradient(135deg, #e4ebed, #d4dfe2); }

.materials-v3 { background: var(--color-bg-soft); }
.materials-panel { display: grid; grid-template-columns: .72fr 1.28fr; border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; background: #fff; }
.material-list { display: grid; border-right: 1px solid var(--color-border); }
.material-list button { min-height: 76px; display: grid; grid-template-columns: 38px 1fr auto; align-items: center; gap: 12px; padding: 0 24px; border: 0; border-bottom: 1px solid var(--color-border); color: var(--color-text); background: transparent; text-align: left; cursor: default; }
.material-list button:last-child { border-bottom: 0; }
.material-list button.is-active { color: #fff; background: var(--color-primary); }
.material-list button > span { color: var(--color-accent); font-family: Arial, sans-serif; font-size: 10px; }
.material-list button small { color: var(--color-text-secondary); font-size: 10px; }
.material-list button.is-active small { color: rgba(255,255,255,.62); }
.process-chain { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); align-content: center; gap: 0; padding: 70px 48px; }
.process-chain::before { content: ""; position: absolute; top: 50%; right: 70px; left: 70px; height: 1px; background: var(--color-border); }
.process-chain > div { position: relative; z-index: 1; min-height: 126px; display: grid; align-content: center; padding: 20px; border: 1px solid var(--color-border); background: #fff; }
.process-chain span { color: var(--color-accent); font-size: 10px; }.process-chain strong { margin-top: 24px; font-size: 17px; }

.complex-v3 { padding: 118px 0; overflow: hidden; color: #fff; background: var(--color-dark); }
.complex-v3 header { max-width: 760px; }.complex-v3 h2 { margin: 0; font-size: clamp(38px, 3.5vw, 50px); line-height: 1.25; }
.complex-stage { position: relative; min-height: 620px; margin-top: 48px; border: 1px solid rgba(255,255,255,.14); background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px); background-size: 64px 64px; }
.complex-placeholder { position: absolute; top: 13%; right: 25%; bottom: 13%; left: 25%; color: rgba(255,255,255,.52); background: linear-gradient(135deg, #253238, #182126); }
.complex-placeholder small { margin-top: 8px; color: rgba(255,255,255,.36); font-size: 10px; }
.complex-label { position: absolute; min-width: 150px; color: rgba(255,255,255,.72); font-size: 12px; }
.complex-label i { display: block; width: 100%; height: 1px; margin-bottom: 10px; background: linear-gradient(90deg, var(--color-accent), rgba(24,166,163,.1)); }
.label-1 { top: 16%; left: 5%; }.label-2 { top: 44%; left: 4%; }.label-3 { bottom: 14%; left: 9%; }.label-4 { top: 18%; right: 4%; }.label-5 { top: 48%; right: 3%; }.label-6 { right: 8%; bottom: 12%; }

.manufacturing-v3 { background: #fff; }
.manufacturing-evidence { display: grid; grid-template-columns: 1.12fr .88fr; gap: 44px; align-items: stretch; }
.evidence-media { min-height: 470px; border: 1px dashed #aab5ba; border-radius: var(--radius); }
.evidence-media small { margin-top: 8px; font-size: 10px; }
.evidence-copy { padding: 38px 0; }.evidence-copy h3 { margin: 0 0 18px; font-size: 28px; }.evidence-copy > p { color: var(--color-text-secondary); line-height: 1.85; }
.stats-grid { display: grid; grid-template-columns: 1fr 1fr; margin-top: 42px; border-top: 1px solid var(--color-border); border-left: 1px solid var(--color-border); }
.stats-grid div { min-height: 116px; display: grid; align-content: center; padding: 18px; border-right: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.stats-grid strong { color: var(--color-primary); font-size: 22px; }.stats-grid span { margin-top: 8px; color: var(--color-text-secondary); font-size: 11px; }

.applications-v3 { background: var(--color-bg-soft); }
.applications-grid { display: grid; grid-template-columns: 1.15fr repeat(2, .85fr); grid-template-rows: repeat(2, 270px); gap: 16px; }
.application-tile { position: relative; padding: 28px; overflow: hidden; border: 1px solid var(--color-border); border-radius: var(--radius); background: #fff; }
.application-primary { grid-row: span 2; display: flex; flex-direction: column; justify-content: flex-end; color: #fff; background: var(--color-dark); }
.application-media { position: absolute; inset: 0; color: rgba(255,255,255,.52); background: linear-gradient(135deg, #243238, #111a1f); }
.application-primary::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(16,24,29,.96), rgba(16,24,29,.12)); }
.application-tile > small, .application-tile > h3, .application-tile > p, .application-tile > a { position: relative; z-index: 2; }
.application-tile > small { color: var(--color-accent); font-family: Arial, sans-serif; font-size: 10px; }
.application-tile h3 { margin: 52px 0 12px; font-size: 24px; }.application-primary h3 { margin-top: 14px; font-size: 34px; }
.application-tile p { margin: 0; color: var(--color-text-secondary); font-size: 13px; line-height: 1.75; }.application-primary p { max-width: 540px; color: rgba(255,255,255,.7); font-size: 15px; }
.application-tile a { display: inline-flex; margin-top: 22px; font-size: 12px; font-weight: 700; }

.cases-v3 { background: #fff; }
.case-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.case-card { border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; background: var(--color-bg); }
.case-media-placeholder { min-height: 220px; }
.case-card > small, .case-card > h3, .case-card > dl, .case-card > a { margin-right: 26px; margin-left: 26px; }
.case-card > small { display: block; margin-top: 24px; color: var(--color-accent); font-size: 10px; }.case-card h3 { margin-top: 10px; margin-bottom: 22px; font-size: 24px; line-height: 1.35; }
.case-card dl { margin-bottom: 24px; border-top: 1px solid var(--color-border); }
.case-card dl div { display: grid; grid-template-columns: 82px 1fr; gap: 12px; padding: 11px 0; border-bottom: 1px solid var(--color-border); font-size: 12px; }
.case-card dt { color: var(--color-text-secondary); }.case-card dd { margin: 0; }.case-card > a { display: inline-flex; margin-bottom: 28px; font-size: 12px; font-weight: 700; }

.research-v3 { color: #fff; background: var(--color-primary); }
.research-layout { display: grid; grid-template-columns: .82fr 1.18fr; gap: 86px; align-items: center; }
.research-v3 h2 { margin: 0 0 24px; font-size: clamp(38px, 3.6vw, 50px); line-height: 1.24; }.research-v3 p:not(.eyebrow) { max-width: 560px; color: rgba(255,255,255,.72); line-height: 1.85; }
.research-flow { display: grid; grid-template-columns: repeat(2, 1fr); margin: 0; padding: 0; border-top: 1px solid rgba(255,255,255,.22); border-left: 1px solid rgba(255,255,255,.22); list-style: none; }
.research-flow li { min-height: 92px; display: flex; align-items: center; gap: 24px; padding: 18px; border-right: 1px solid rgba(255,255,255,.22); border-bottom: 1px solid rgba(255,255,255,.22); font-size: 14px; }.research-flow span { color: #7de0da; font-size: 10px; }

.insights-v3 { background: var(--color-bg); }
.insights-list { border-top: 1px solid var(--color-text); }
.insights-list a { min-height: 118px; display: grid; grid-template-columns: 44px 120px 1fr 90px 22px; gap: 18px; align-items: center; border-bottom: 1px solid var(--color-border); }
.insights-list b { color: var(--color-accent); font-family: Arial, sans-serif; font-size: 10px; }.insights-list small, .insights-list time { color: var(--color-text-secondary); font-size: 11px; }.insights-list h3 { margin: 0; font-size: 19px; font-weight: 500; }

.mega-scene { display: grid; grid-template-columns: 160px 1fr 1fr; gap: 26px; min-height: 290px; }
.mega-scene-tabs { display: grid; align-content: start; }.mega-scene-tabs button { padding: 9px 0; border: 0; color: var(--color-text-secondary); background: transparent; text-align: left; cursor: pointer; }.mega-scene-tabs button[aria-selected="true"] { color: var(--color-primary); font-weight: 700; }
.mega-scene-media { display: grid; place-items: center; padding: 20px; color: var(--color-text-secondary); background: var(--color-bg-soft); font-size: 11px; text-align: center; }
.mega-scene-panels section h3 { margin: 0 0 16px; font-size: 24px; }.mega-scene-panels ul { display: grid; gap: 8px; margin: 0 0 24px; padding: 0; list-style: none; }.mega-scene-panels li { color: var(--color-text-secondary); font-size: 12px; }

@media (max-width: 1199px) {
  :root { --section-space: 96px; }
  .hero-v3-layout { grid-template-columns: 1fr 1fr; }
  .products-bento { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .product-tile, .product-tile.product-primary { grid-row: auto; min-height: 430px; }.product-tile:nth-child(5) { grid-column: auto; grid-template-columns: 1fr; grid-template-rows: minmax(118px, 1fr) auto; }
  .materials-panel { grid-template-columns: .8fr 1.2fr; }.process-chain { grid-template-columns: 1fr 1fr; padding: 40px; }
  .applications-grid { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }.application-primary { grid-row: auto; grid-column: 1 / -1; min-height: 500px; }.application-tile { min-height: 250px; }
  .case-cards { grid-template-columns: 1fr 1fr; }.case-card:last-child { grid-column: 1 / -1; }
  .research-layout { grid-template-columns: 1fr; }
}

@media (max-width: 767px) {
  :root { --section-space: 76px; }
  .home-v3 .split-heading { grid-template-columns: 1fr; }.home-v3 .split-heading > p { justify-self: start; }
  .home-hero-v3 { min-height: auto; }.hero-v3-layout { grid-template-columns: 1fr; gap: 42px; padding: 72px 0 28px; }.hero-v3-copy h1 { font-size: 46px; }.hero-v3-copy > p:not(.eyebrow) { font-size: 15px; }.hero-actions { flex-direction: column; }.hero-v3-visual { aspect-ratio: 1 / 1; }.hero-v3-visual figcaption { display: grid; }.hero-v3-visual figcaption small { text-align: left; }
  .products-bento { grid-template-columns: 1fr; }.product-tile, .product-tile.product-primary { min-height: 420px; }
  .materials-panel { grid-template-columns: 1fr; }.material-list { border-right: 0; border-bottom: 1px solid var(--color-border); }.material-list button { grid-template-columns: 32px 1fr; }.material-list button small { grid-column: 2; }.process-chain { grid-template-columns: 1fr 1fr; padding: 24px; }.process-chain > div { min-height: 110px; }
  .complex-v3 { padding: 76px 0; }.complex-stage { min-height: 620px; }.complex-placeholder { top: 22%; right: 10%; bottom: 22%; left: 10%; }.complex-label { min-width: 112px; }.label-1,.label-2,.label-3 { left: 2%; }.label-4,.label-5,.label-6 { right: 2%; }
  .manufacturing-evidence { grid-template-columns: 1fr; }.evidence-media { min-height: 330px; }.stats-grid { margin-top: 28px; }
  .applications-grid { grid-template-columns: 1fr; }.application-primary { grid-column: auto; min-height: 480px; }.application-tile { min-height: 230px; }
  .case-cards { grid-template-columns: 1fr; }.case-card:last-child { grid-column: auto; }
  .research-flow { grid-template-columns: 1fr; }
  .insights-list a { grid-template-columns: 30px 1fr 18px; gap: 12px; padding: 18px 0; }.insights-list small { grid-column: 2; }.insights-list h3 { grid-column: 2; font-size: 16px; }.insights-list time { grid-column: 2; }.insights-list > a > span { grid-column: 3; grid-row: 1 / 4; }
}

/* Homepage evidence pass */
.no-break { white-space: nowrap; }
.hero-content { padding-bottom: 112px; }
.hero-lead { max-width: 790px; font-weight: 500; }
.hero-proof span { min-height: 96px; display: grid; grid-template-columns: 34px 1fr; grid-template-rows: auto auto; align-content: center; column-gap: 12px; padding: 15px 22px; }
.hero-proof span b { grid-row: 1 / 3; align-self: start; color: var(--signal); font-family: Arial, sans-serif; font-size: 11px; }
.hero-proof span strong { font-size: 14px; font-weight: 700; }
.hero-proof span small { color: rgba(255,255,255,.65); font-size: 11px; line-height: 1.55; }

.service-block.has-image { isolation: isolate; overflow: hidden; color: var(--paper); background: var(--ink); }
.service-block.has-image::after { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(0deg, rgba(7,13,18,.9), rgba(7,13,18,.18)); }
.service-block.has-image > img { position: absolute; inset: 0; z-index: 0; width: 100%; height: 100%; object-fit: cover; }
.service-block.has-image > span, .service-block.has-image > div, .service-block.has-image > a { position: relative; z-index: 2; }
.service-block.has-image.image-1 > img { object-position: 69% center; }
.service-block.has-image.image-2 > img { object-position: 77% center; }
.service-block.has-image.image-3 > img { object-position: 90% center; }
.service-block.has-image.image-4 > img { object-position: 60% center; transform: scale(1.35); }
.service-block.has-image.image-6 > img { object-position: 32% center; transform: scale(1.15); }
.service-block.has-image p { color: rgba(255,255,255,.72); }
.service-block.has-image > a { color: var(--paper); }
.visual-note { margin: 14px 0 0; color: var(--muted); font-size: 11px; }

.process-track::before { content: ""; position: absolute; top: 50%; right: 30px; left: 30px; height: 1px; background: rgba(230,80,46,.45); pointer-events: none; }
.process-track li { position: relative; z-index: 1; min-height: 190px; background: #1c2329; }
.process-track small { color: rgba(255,255,255,.52); font-size: 11px; line-height: 1.65; }

.matrix-table { border-top: 1px solid var(--ink); border-left: 1px solid var(--line); background: var(--paper); }
.matrix-row { display: grid; grid-template-columns: 1.05fr .9fr 1.35fr 1fr; }
.matrix-row > * { min-height: 66px; display: flex; align-items: center; padding: 12px 16px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); font-size: 12px; line-height: 1.55; }
.matrix-row strong { font-size: 13px; font-weight: 700; }
.matrix-head { color: var(--paper); background: var(--brand-deep); }
.matrix-head > * { min-height: 48px; border-color: rgba(255,255,255,.2); font-size: 10px; font-weight: 700; }

.manufacturing-section { padding-top: 0; background: var(--surface); }
.manufacturing-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--ink); border-left: 1px solid var(--line); }
.manufacturing-grid article { min-height: 230px; padding: 26px 24px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper); }
.manufacturing-grid span { color: var(--signal); font-family: Arial, sans-serif; font-size: 10px; font-weight: 700; }
.manufacturing-grid h3 { margin: 58px 0 14px; font-size: 22px; font-weight: 600; }
.manufacturing-grid p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }

.industry-feature img { object-position: 68% center; }
.structure-section > img { object-position: 73% center; }
.structure-shade { background: linear-gradient(90deg, rgba(7,13,18,.93) 0%, rgba(7,13,18,.46) 48%, rgba(7,13,18,.08) 82%); }

.case-visual { position: relative; isolation: isolate; overflow: hidden; background: var(--ink); }
.case-visual::after { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(0deg, rgba(7,13,18,.92), rgba(7,13,18,.08)); }
.case-visual img { position: absolute; inset: 0; z-index: 0; height: 100%; object-fit: cover; object-position: 76% center; }
.case-visual > span, .case-visual > strong { position: relative; z-index: 2; }
.case-list a { grid-template-columns: 28px 112px 1fr 20px; gap: 16px; }
.case-thumb { width: 112px; height: 76px; display: block; background-image: linear-gradient(90deg, rgba(7,13,18,.1), rgba(7,13,18,0)), url('assets/hero-manufacturing-v2.png'); background-size: 260%; }
.thumb-lattice { background-position: 76% 48%; }
.thumb-repair { background-position: 20% 50%; }
.thumb-marine { background-position: 88% 62%; }

.resource-meta { display: flex; gap: 18px; align-items: center; color: var(--signal); font-size: 11px; font-weight: 700; }
.resource-meta time, .resource-list time { color: var(--muted); font-family: Arial, sans-serif; font-size: 10px; font-weight: 400; }
.resource-list a:not(.resource-all) { grid-template-columns: 30px 1fr 20px; }
.resource-list a > b { color: var(--signal); font-family: Arial, sans-serif; font-size: 10px; }
.resource-list a > div { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2px 20px; }
.resource-list a > div small { grid-column: 1; }
.resource-list a > div h3 { grid-column: 1; }
.resource-list a > div time { grid-column: 2; grid-row: 1 / 3; }

.project-cta { background: var(--brand-deep); }
.button-signal { color: var(--paper); background: var(--signal); border-color: var(--signal); }
.button-signal:hover { color: var(--ink); background: var(--paper); border-color: var(--paper); }
.footer-grid { grid-template-columns: 1.35fr repeat(4, .72fr) 1fr; gap: 34px; }

.consult-button { position: fixed; right: 22px; bottom: 22px; z-index: 80; width: 46px; height: 46px; display: grid; place-items: center; color: var(--paper); background: var(--brand); box-shadow: 0 8px 24px rgba(7,54,79,.25); }
.consult-button span { width: 19px; height: 15px; border: 2px solid currentColor; }
.consult-button span::after { content: ""; display: block; width: 5px; height: 5px; margin: 11px 0 0 2px; border-left: 2px solid currentColor; transform: skewY(-35deg); }
.consult-button b { position: absolute; right: 54px; width: max-content; padding: 7px 10px; color: var(--paper); background: var(--ink); font-size: 11px; opacity: 0; pointer-events: none; transition: opacity .2s ease; }
.consult-button:hover b, .consult-button:focus-visible b { opacity: 1; }

@media (max-width: 1180px) {
  .footer-grid { grid-template-columns: 1.25fr repeat(3, 1fr); }
  .footer-contact { grid-column: auto; display: grid; grid-template-columns: 1fr; border-top: 0; padding-top: 0; }
}

@media (max-width: 980px) {
  .hero-content { padding-bottom: 112px; }
  .manufacturing-grid { grid-template-columns: 1fr 1fr; }
  .matrix-row { grid-template-columns: 1fr 1fr; }
  .matrix-row > *:nth-child(2) { border-right: 1px solid var(--line); }
  .case-list a { grid-template-columns: 28px 96px 1fr; }
  .case-list a > b { display: none; }
}

@media (max-width: 720px) {
  .no-break { white-space: normal; }
  .hero-content { padding-bottom: 112px; }
  .hero-content h1 { font-size: 40px; line-height: 1.2; }
  .hero-proof span { min-height: 66px; grid-template-columns: 28px 1fr; padding: 8px 0; }
  .hero-proof span small { font-size: 10px; }
  .service-block.has-image { min-height: 270px; }
  .process-track::before { display: none; }
  .process-track li { min-height: 158px; }
  .matrix-row { grid-template-columns: 1fr; }
  .matrix-row > * { min-height: auto; padding: 12px 14px; }
  .matrix-row > *::before { width: 86px; flex: 0 0 86px; color: var(--muted); font-size: 9px; }
  .matrix-row:not(.matrix-head) > *:nth-child(1)::before { content: "材料体系"; }
  .matrix-row:not(.matrix-head) > *:nth-child(2)::before { content: "制造方式"; }
  .matrix-row:not(.matrix-head) > *:nth-child(3)::before { content: "后处理"; }
  .matrix-row:not(.matrix-head) > *:nth-child(4)::before { content: "检测验证"; }
  .matrix-head { display: none; }
  .manufacturing-grid { grid-template-columns: 1fr; }
  .manufacturing-grid article { min-height: 174px; }
  .manufacturing-grid h3 { margin-top: 34px; }
  .structure-content h2 { font-size: 34px; }
  .case-list a { grid-template-columns: 24px 78px 1fr; padding: 16px 0; }
  .case-thumb { width: 78px; height: 68px; }
  .resource-list a:not(.resource-all) { grid-template-columns: 24px 1fr 16px; }
  .resource-list a > div { display: block; }
  .resource-list time { display: block; margin-top: 6px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-contact { grid-column: 1 / -1; grid-template-columns: 1fr 1fr; }
  .consult-button { right: 14px; bottom: 14px; }
}

/* Keep V4 authoritative over retained legacy component styles. */
.home-v3 .section { padding: 72px 0; }
.home-v3 .section-heading { margin-bottom: 34px; }
.home-v3 .section-heading h2 { font-size: clamp(32px, 2.8vw, 38px); font-weight: 700; }
.home-v3 .split-heading { grid-template-columns: minmax(0, 1fr) minmax(280px, .72fr); gap: 48px; }
.home-v3 .split-heading > p { max-width: 480px; color: var(--color-text-secondary); font-size: 15px; }
.home-hero-v3 { height: 670px; min-height: 620px; background: var(--color-primary-dark); }
.hero-v3-layout { height: calc(100% - 94px); grid-template-columns: 42fr 58fr; gap: 46px; padding: 50px 0 44px; }
.hero-v3-copy h1 { font-size: clamp(56px, 4.5vw, 64px); font-weight: 800; }
.hero-v3-copy h1 span { color: #42c8d1; }
.hero-v3-copy > p:not(.eyebrow) { margin-top: 22px; font-size: 16px; }
.hero-v3-visual { height: 100%; aspect-ratio: auto; }
.mega-scene-media { position: relative; display: block; padding: 0; overflow: hidden; }
.mega-scene-media img { height: 100%; object-fit: cover; }
.cases-panel, .applications-panel { min-width: 0; }
.case-strip { width: 100%; max-width: 100%; }
.application-card-v4.application-primary { grid-row: auto; grid-column: auto; min-height: 0; display: block; color: var(--color-text); background: #fff; }
.application-card-v4.application-primary::after { display: none; }
.application-card-v4.application-primary .application-card-copy h3 { margin-top: 5px; font-size: 19px; }
.application-card-v4.application-primary .application-card-copy p { max-width: none; color: rgba(255,255,255,.72); font-size: 11px; }
.application-card-v4 .application-card-media { aspect-ratio: 2 / 1; }
.application-card-v4 .application-card-copy { min-height: 102px; }
.footer-grid { grid-template-columns: 1.35fr repeat(4, .72fr) 1.12fr .86fr; gap: 24px; }
.footer-contact { display: grid; grid-template-columns: 1fr; padding-top: 0; border-top: 0; }

@media (max-width: 1199px) {
  .home-v3 .section { padding: 64px 0; }
  .hero-v3-layout { grid-template-columns: 44fr 56fr; gap: 30px; }
  .hero-v3-copy h1 { font-size: 52px; }
  .footer-grid { grid-template-columns: 1.25fr repeat(3, 1fr); gap: 30px; }
}

@media (max-width: 980px) {
  .home-hero-v3 { height: auto; min-height: 0; display: block; }
  .hero-v3-layout { height: auto; grid-template-columns: 1fr 1fr; padding: 52px 0 38px; }
  .hero-v3-copy h1 { font-size: 46px; }
}

@media (max-width: 767px) {
  .home-v3 .section { padding: 56px 0; }
  .home-v3 .split-heading { grid-template-columns: 1fr; gap: 12px; }
  .hero-v3-layout { grid-template-columns: 1fr; gap: 30px; padding: 44px 0 30px; }
  .hero-v3-copy h1 { font-size: 43px; }
  .hero-v3-visual { height: auto; aspect-ratio: 4 / 3; }
  .application-card-v4 .application-card-media { aspect-ratio: 4 / 3; }
  .application-card-v4 .application-card-copy { min-height: 126px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-contact { grid-column: auto; grid-template-columns: 1fr; }
}

@media (max-width: 430px) {
  .hero-v3-copy h1 { font-size: 39px; }
  .footer-contact { grid-column: 1 / -1; }
}

/* V5 restrained navigation motion and bilingual controls */
.primary-item > a { transition: color 180ms ease-out; }
.primary-item:hover > a,
.primary-item.is-open > a,
.primary-item > a:focus-visible { color: var(--color-primary); }
.primary-item > a::after {
  transition: transform 280ms cubic-bezier(.22, 1, .36, 1);
}

.mega-menu {
  visibility: hidden;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 200ms ease-out, transform 200ms ease-out, visibility 0s linear 210ms;
}
.primary-item.is-open .mega-menu {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
  transition: opacity 290ms cubic-bezier(.22, 1, .36, 1), transform 290ms cubic-bezier(.22, 1, .36, 1), visibility 0s;
}
.primary-item.is-closing .mega-menu {
  visibility: visible;
  opacity: 0;
  transform: translateY(6px);
  pointer-events: none;
  transition: opacity 200ms ease-out, transform 200ms ease-out, visibility 0s linear 205ms;
}
.primary-item.is-switching-out .mega-menu {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
  pointer-events: none;
}
.site-header.is-mega-switching .primary-item.is-open .mega-menu {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
  transition: none;
}
.mega-layout { transition: opacity 200ms ease-out; }
.primary-item.is-switching-out .mega-layout,
.primary-item.is-switching-in .mega-layout { opacity: 0; }
.mega-intro,
.mega-group,
.mega-scene-tabs,
.mega-scene-media,
.mega-scene-panels {
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 270ms ease-out, transform 270ms ease-out;
}
.primary-item.is-open:not(.is-switching-in) .mega-intro,
.primary-item.is-open:not(.is-switching-in) .mega-group,
.primary-item.is-open:not(.is-switching-in) .mega-scene-tabs,
.primary-item.is-open:not(.is-switching-in) .mega-scene-media,
.primary-item.is-open:not(.is-switching-in) .mega-scene-panels {
  opacity: 1;
  transform: translateY(0);
}
.primary-item.is-open .mega-intro { transition-delay: 25ms; }
.primary-item.is-open .mega-group:nth-child(1),
.primary-item.is-open .mega-scene-tabs { transition-delay: 55ms; }
.primary-item.is-open .mega-group:nth-child(2),
.primary-item.is-open .mega-scene-media { transition-delay: 90ms; }
.primary-item.is-open .mega-group:nth-child(3),
.primary-item.is-open .mega-scene-panels { transition-delay: 125ms; }
.primary-item.is-open .mega-group:nth-child(4) { transition-delay: 160ms; }
.primary-item.is-open .mega-group:nth-child(5) { transition-delay: 195ms; }
.primary-item.is-open .mega-group:nth-child(6) { transition-delay: 230ms; }
.primary-item.is-switching-out .mega-intro,
.primary-item.is-switching-out .mega-group,
.primary-item.is-switching-out .mega-scene-tabs,
.primary-item.is-switching-out .mega-scene-media,
.primary-item.is-switching-out .mega-scene-panels { opacity: 0; transform: translateY(0); transition-delay: 0ms; transition-duration: 190ms; }

.language-switch {
  height: 32px;
  display: inline-grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: #fff;
}
.language-switch a {
  min-width: 31px;
  height: 100%;
  display: grid;
  place-items: center;
  color: var(--color-text-secondary);
  font-family: Arial, sans-serif;
  font-size: 10px;
  font-weight: 700;
  transition: color 180ms ease-out, background 180ms ease-out;
}
.language-switch a + a { border-left: 1px solid var(--color-border); }
.language-switch a:hover { color: var(--color-primary); }
.language-switch a[aria-current="page"] { color: #fff; background: var(--color-primary); }
.mobile-language-switch { display: grid; grid-template-columns: 1fr 1fr; margin-top: 22px; border: 1px solid rgba(255,255,255,.24); }
.mobile-language-switch a { min-height: 42px; display: grid; place-items: center; color: rgba(255,255,255,.66); font-size: 12px; }
.mobile-language-switch a + a { border-left: 1px solid rgba(255,255,255,.24); }
.mobile-language-switch a[aria-current="page"] { color: #fff; background: rgba(0,168,183,.28); }

.product-card:hover .product-media img,
.application-card-v4:hover .application-card-media img,
.case-card-v4:hover .case-card-media img { transform: scale(1.02); }
.product-card:hover .product-card-copy > a,
.application-card-v4:hover .application-card-copy > span,
.case-card-v4:hover span,
.text-link:hover b { transform: translateX(4px); }

.lang-en .primary-menu { gap: 14px; }
.lang-en .primary-item > a { font-size: 12px; }
.lang-en .header-inner { grid-template-columns: 210px 1fr auto; }
.lang-en .header-cta { padding-inline: 14px; font-size: 11px; white-space: nowrap; }
.lang-en .hero-v3-copy h1 { font-size: clamp(48px, 4vw, 60px); }
.lang-en .product-card-copy h3 { font-size: 19px; }

@media (max-width: 1120px) {
  .desktop-navigation { display: none; }
  .menu-button { display: grid; }
  .header-inner { grid-template-columns: 1fr auto; }
  .header-cta, .header-actions > .language-switch { display: none; }
}

@media (max-width: 767px) {
  .lang-en .hero-v3-copy h1 { font-size: 38px; }
  .lang-en .hero-v3-copy > p:not(.eyebrow) { font-size: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  .primary-item > a,
  .primary-item > a::after,
  .mega-menu,
  .mega-layout,
  .mega-intro,
  .mega-group,
  .mega-scene-tabs,
  .mega-scene-media,
  .mega-scene-panels,
  .language-switch a,
  .product-media img,
  .application-card-media img,
  .case-card-media img,
  .product-card-copy > a,
  .application-card-copy > span,
  .case-card-v4 span,
  .text-link b {
    transition: none !important;
    animation: none !important;
  }
  .mega-menu,
  .mega-intro,
  .mega-group,
  .mega-scene-tabs,
  .mega-scene-media,
  .mega-scene-panels { transform: none !important; }
}

/* Industrial homepage hierarchy refinement */
.products-v4 .products-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: stretch;
}
.products-v4 .product-card-featured {
  grid-column: span 2;
  min-height: 360px;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr);
  grid-template-rows: 1fr;
}
.products-v4 .product-card-featured .product-media,
.products-v4 .product-card-wide .product-media { aspect-ratio: auto; }
.products-v4 .product-card-featured .product-card-copy {
  min-height: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 34px 58px 34px 30px;
  background: var(--color-primary);
}
.products-v4 .product-card-featured .product-card-copy small { color: #7de0e6; }
.products-v4 .product-card-featured .product-card-copy h3 { color: #fff; font-size: 30px; }
.products-v4 .product-card-featured .product-card-copy p { color: rgba(255,255,255,.7); font-size: 14px; }
.products-v4 .product-card-featured .product-card-copy > a { right: 28px; bottom: 30px; color: #fff; }
.products-v4 .product-card-wide {
  grid-column: 1 / -1;
  min-height: 250px;
  grid-template-columns: minmax(320px, .78fr) minmax(0, 1.22fr);
  grid-template-rows: 1fr;
}
.products-v4 .product-card-wide .product-card-copy {
  min-height: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 34px 64px 34px 34px;
}

.engineering-capabilities {
  padding: 82px 0;
  color: #fff;
  background: var(--color-primary-dark);
}
.capabilities-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, .65fr);
  gap: 64px;
  align-items: end;
  margin-bottom: 44px;
}
.capabilities-heading h2 { margin: 0; color: #fff; font-size: clamp(34px, 3vw, 42px); line-height: 1.2; }
.capabilities-heading > p { max-width: 520px; justify-self: end; margin: 0; color: rgba(255,255,255,.62); font-size: 15px; line-height: 1.8; }
.capabilities-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid rgba(255,255,255,.2); border-left: 1px solid rgba(255,255,255,.2); }
.capabilities-row > div { min-height: 178px; display: grid; align-content: start; padding: 25px 24px; border-right: 1px solid rgba(255,255,255,.2); border-bottom: 1px solid rgba(255,255,255,.2); }
.capabilities-row span { color: #69dce3; font-family: Arial, sans-serif; font-size: 10px; font-weight: 700; }
.capabilities-row strong { margin-top: 38px; color: #fff; font-size: 18px; }
.capabilities-row small { margin-top: 12px; color: rgba(255,255,255,.56); font-size: 11px; line-height: 1.65; }

.knowledge-v4 .knowledge-grid { grid-template-columns: 1fr; gap: 72px; }
.knowledge-v4 .case-strip { grid-template-columns: repeat(10, minmax(0, 1fr)); gap: 16px; }
.knowledge-v4 .case-card-v4:nth-child(1) { grid-column: span 4; }
.knowledge-v4 .case-card-v4:nth-child(2),
.knowledge-v4 .case-card-v4:nth-child(3) { grid-column: span 3; }
.knowledge-v4 .case-card-v4:nth-child(4),
.knowledge-v4 .case-card-v4:nth-child(5) { grid-column: span 5; }
.knowledge-v4 .case-card-media { aspect-ratio: 16 / 9; }
.knowledge-v4 .case-card-v4:nth-child(1) .case-card-media { aspect-ratio: 16 / 7.2; }
.knowledge-v4 .case-card-v4 > div:last-child { min-height: 104px; padding: 17px 42px 18px 18px; }
.knowledge-v4 .case-card-v4 h3 { font-size: 17px; }
.knowledge-v4 .insights-panel { padding-left: 0; border-left: 0; }
.knowledge-v4 .insights-list-v4 { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--color-primary-dark); border-left: 1px solid var(--color-border); }
.knowledge-v4 .insights-list-v4 > a { min-height: 108px; padding: 12px 22px; border-right: 1px solid var(--color-border); }
.knowledge-v4 .insights-list-v4 h3 { font-size: 16px; }

.project-cta-v4 { padding: 90px 0; color: #fff; background: var(--color-primary); }
.project-cta-layout { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(360px, .72fr); gap: 80px; align-items: end; }
.project-cta-v4 h2 { max-width: 760px; margin: 0; color: #fff; font-size: clamp(36px, 3.4vw, 48px); line-height: 1.24; }
.project-cta-copy > p { margin: 0; color: rgba(255,255,255,.7); font-size: 15px; line-height: 1.85; }
.project-cta-copy > div { display: flex; flex-wrap: wrap; gap: 20px; align-items: center; margin-top: 28px; }
.project-cta-v4 .button-accent { color: var(--color-primary-dark); background: #fff; border-color: #fff; }
.project-cta-v4 .button-accent:hover { color: var(--color-primary-dark); background: #dff7f8; border-color: #dff7f8; }
.project-email { color: rgba(255,255,255,.88); font-size: 13px; }

@media (max-width: 980px) {
  .products-v4 .product-card-featured { grid-column: 1 / -1; }
  .products-v4 .product-card-wide { grid-template-columns: minmax(260px, .85fr) 1.15fr; }
  .capabilities-row { grid-template-columns: 1fr 1fr; }
  .project-cta-layout { grid-template-columns: 1fr; gap: 34px; }
}

@media (max-width: 767px) {
  .products-v4 .product-card-featured,
  .products-v4 .product-card-wide { grid-column: auto; min-height: 0; grid-template-columns: 1fr; grid-template-rows: auto 1fr; }
  .products-v4 .product-card-featured .product-media,
  .products-v4 .product-card-wide .product-media { aspect-ratio: 16 / 9; }
  .products-v4 .product-card-featured .product-card-copy { min-height: 150px; padding: 24px 54px 24px 22px; }
  .products-v4 .product-card-featured .product-card-copy h3 { font-size: 24px; }
  .products-v4 .product-card-wide .product-card-copy { min-height: 132px; padding: 20px 54px 20px 22px; }
  .engineering-capabilities { padding: 64px 0; }
  .capabilities-heading { grid-template-columns: 1fr; gap: 18px; margin-bottom: 32px; }
  .capabilities-heading > p { justify-self: start; }
  .capabilities-row { grid-template-columns: 1fr; }
  .capabilities-row > div { min-height: 132px; }
  .capabilities-row strong { margin-top: 22px; }
  .knowledge-v4 .case-strip { grid-template-columns: repeat(5, minmax(220px, 1fr)); gap: 12px; overflow-x: auto; padding-bottom: 10px; scroll-snap-type: x proximity; }
  .knowledge-v4 .case-card-v4:nth-child(n) { grid-column: auto; display: block; scroll-snap-align: start; }
  .knowledge-v4 .case-card-v4:nth-child(1) .case-card-media,
  .knowledge-v4 .case-card-media { aspect-ratio: 4 / 3; }
  .knowledge-v4 .insights-list-v4 { grid-template-columns: 1fr; }
  .knowledge-v4 .insights-list-v4 > a { min-height: 96px; }
  .project-cta-v4 { padding: 68px 0; }
  .project-cta-v4 h2 { font-size: 34px; }
}