@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Manrope:wght@600;700&display=swap');

:root {
  --bg: #080808;
  --bg-secondary: #111111;
  --elevated: #181818;
  --primary-text: #F2F0EA;
  --secondary-text: #A6A6A1;
  --muted-base: #747470;
  --muted-text: color-mix(in oklch, var(--muted-base) 88%, var(--primary-text));
  --border: #292929;
  --gold: #C4A05A;
  --gold-hover: #D1B06A;
  --footer-bg: #050505;
  --font-heading: 'Manrope', sans-serif;
  --font-body: 'Inter', sans-serif;
  --container: 1280px;
  --page-pad: clamp(20px, 5vw, 72px);
  --section-space: clamp(72px, 8.5vw, 124px);
  --radius-image: 6px;
  --radius-control: 6px;
  --header-height: 80px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--primary-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.62;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
img, svg { display: block; max-width: 100%; }
h1, h2, h3, p, figure { margin: 0; }
h1, h2, h3 { font-family: var(--font-heading); text-wrap: balance; }
h1 { font-size: 64px; line-height: 1.08; letter-spacing: -.045em; font-weight: 700; }
h2 { font-size: 44px; line-height: 1.14; letter-spacing: -.035em; font-weight: 700; }
h3 { font-size: 22px; line-height: 1.3; letter-spacing: -.02em; font-weight: 600; }
p { text-wrap: pretty; }
ul { list-style: none; margin: 0; padding: 0; }

:focus-visible { outline: 2px solid var(--gold-hover); outline-offset: 4px; }
.skip-link { position: fixed; top: -72px; left: 20px; z-index: 999; padding: 12px 18px; background: var(--gold); color: var(--bg); border-radius: var(--radius-control); font-weight: 600; }
.skip-link:focus { top: 14px; }
.container { width: min(100%, var(--container)); margin-inline: auto; padding-inline: var(--page-pad); }
.section { position: relative; padding-block: var(--section-space); }
.section-dark { background: var(--bg); }
.section-secondary { background: var(--bg-secondary); }
.eyebrow { margin-bottom: 18px; color: var(--gold); font-size: 11px; line-height: 1.4; letter-spacing: .15em; text-transform: uppercase; font-weight: 600; }
.lead { color: var(--secondary-text); font-size: 18px; line-height: 1.6; max-width: 58ch; }
.body-copy { color: var(--secondary-text); max-width: 64ch; }
.meta { color: var(--muted-text); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.section-intro { max-width: 800px; margin-bottom: clamp(44px, 5vw, 68px); }
.section-intro .lead { margin-top: 18px; }
.split { display: grid; grid-template-columns: 55fr 45fr; gap: clamp(38px, 6vw, 88px); align-items: center; }
.split.reverse { grid-template-columns: 45fr 55fr; }
.split.reverse > :first-child { order: 2; }
.split.reverse > :last-child { order: 1; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

.site-header { position: sticky; top: 0; z-index: 100; height: var(--header-height); background: color-mix(in oklch, var(--bg) 92%, transparent); border-bottom: 1px solid color-mix(in oklch, var(--border) 72%, transparent); backdrop-filter: blur(12px); transition: background .45s ease; }
.site-header.is-scrolled { background: color-mix(in oklch, var(--bg) 98%, transparent); }
.header-inner { height: 100%; display: grid; grid-template-columns: 190px 1fr 170px; gap: 28px; align-items: center; }
.brand { min-height: 48px; display: inline-flex; align-items: center; font-family: var(--font-heading); font-size: 15px; font-weight: 700; letter-spacing: .13em; }
.brand-mark { flex: 0 0 48px; width: 48px; height: 48px; margin-right: 12px; background: #fff url('/images/brand/yuxuan-logo.png') center / 82px 82px no-repeat; }
.brand-name { white-space: nowrap; }
.desktop-nav { display: flex; justify-content: center; gap: clamp(18px, 2vw, 30px); }
.desktop-nav a { position: relative; min-height: 48px; display: inline-flex; align-items: center; color: var(--secondary-text); font-size: 13px; transition: color .42s ease; }
.desktop-nav a:hover, .desktop-nav a[aria-current="page"] { color: var(--primary-text); }
.desktop-nav a[aria-current="page"]::after { content: ''; position: absolute; left: 0; right: 0; bottom: 6px; height: 1px; background: var(--gold); }
.header-cta { justify-self: end; }
.menu-toggle { display: none; position: relative; width: 48px; height: 48px; border: 1px solid var(--border); border-radius: var(--radius-control); background: var(--bg-secondary); color: var(--primary-text); }
.menu-toggle span, .menu-toggle::before, .menu-toggle::after { content: ''; position: absolute; left: 13px; width: 20px; height: 1px; background: currentColor; transition: transform .42s ease, opacity .42s ease; }
.menu-toggle span { top: 23px; }
.menu-toggle::before { top: 17px; }
.menu-toggle::after { top: 29px; }
.menu-toggle[aria-expanded="true"] span { opacity: 0; }
.menu-toggle[aria-expanded="true"]::before { top: 23px; transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"]::after { top: 23px; transform: rotate(-45deg); }
.mobile-nav { display: none; }

.btn { min-height: 50px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding-inline: 26px; border: 1px solid transparent; border-radius: var(--radius-control); font-size: 13px; line-height: 1; letter-spacing: .045em; text-transform: uppercase; font-weight: 600; transition: color .42s ease, background .42s ease, border-color .42s ease, transform .42s ease; }
.btn svg { width: 15px; height: 15px; transition: transform .42s ease; }
.btn:hover svg { transform: translateX(4px); }
.btn-primary { background: var(--gold); color: var(--bg); border-color: var(--gold); }
.btn-primary:hover { background: var(--gold-hover); color: var(--bg); border-color: var(--gold-hover); }
.btn-secondary { background: transparent; color: var(--primary-text); border-color: color-mix(in oklch, var(--primary-text) 32%, transparent); }
.btn-secondary:hover { color: var(--gold-hover); border-color: var(--gold-hover); }
.text-link { min-height: 44px; display: inline-flex; align-items: center; gap: 10px; color: var(--primary-text); font-size: 13px; letter-spacing: .04em; text-transform: uppercase; transition: color .42s ease; }
.text-link span { transition: transform .42s ease; }
.text-link:hover { color: var(--gold-hover); }
.text-link:hover span { transform: translateX(4px); }

.photo-placeholder { position: relative; overflow: hidden; min-height: 340px; border: 1px solid var(--border); border-radius: var(--radius-image); background: linear-gradient(145deg, var(--elevated), var(--bg-secondary)); }
.photo-placeholder::before { content: 'PHOTOGRAPHY PLACEHOLDER'; position: absolute; top: 20px; left: 22px; color: var(--muted-text); font-size: 10px; letter-spacing: .14em; }
.photo-placeholder figcaption { position: absolute; left: 22px; right: 22px; bottom: 20px; max-width: 76ch; color: var(--secondary-text); font-size: 12px; line-height: 1.5; letter-spacing: .02em; }
.photo-placeholder.tall { min-height: 620px; }
.photo-placeholder.medium { min-height: 460px; }
.photo-placeholder.short { min-height: 270px; }
.photo-placeholder.no-radius { border-radius: 0; border-inline: 0; }

.home-hero { min-height: 820px; display: grid; align-items: center; overflow: hidden; }
.home-hero::after { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, var(--bg) 0 38%, color-mix(in oklch, var(--bg) 80%, transparent) 52%, transparent 72%); }
.home-hero .hero-photo { position: absolute; z-index: -2; top: 0; right: 0; bottom: 0; width: 58vw; border: 0; border-radius: 0; background: linear-gradient(105deg, var(--bg-secondary), var(--elevated)); }
.home-hero .hero-photo::before { top: auto; bottom: 30px; left: auto; right: 34px; }
.home-hero .hero-photo figcaption { left: 20%; right: 5vw; bottom: 64px; text-align: right; }
.hero-copy { width: min(45%, 610px); padding-block: 90px; }
.hero-copy .lead { margin-top: 24px; }
.trust-labels { display: flex; flex-wrap: wrap; gap: 12px 28px; margin-top: 30px; color: var(--secondary-text); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; }
.trust-labels li { position: relative; padding-left: 18px; }
.trust-labels li::before { content: ''; position: absolute; left: 0; top: 8px; width: 8px; height: 1px; background: var(--gold); }

.proof-section { min-height: 160px; display: grid; align-items: center; padding-block: 30px; }
.proof-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.proof-item { padding: 8px 34px; border-right: 1px solid var(--border); }
.proof-item:first-child { padding-left: 0; }
.proof-item:last-child { border-right: 0; }
.proof-number { color: var(--gold); font: 700 clamp(36px, 4vw, 50px)/1 var(--font-heading); letter-spacing: -.04em; }
.proof-number.proof-text { font-size: clamp(21px, 2.2vw, 31px); line-height: 1.1; }
.proof-label { margin-top: 10px; color: var(--secondary-text); font-size: 11px; letter-spacing: .11em; text-transform: uppercase; }

.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px 22px; }
.product-item { position: relative; aspect-ratio: 4/3; overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius-image); transition: border-color .45s ease; }
.product-item:hover { border-color: color-mix(in oklch, var(--gold) 46%, transparent); }
.product-item .photo-placeholder { position: absolute; inset: 0; min-height: 0; border: 0; border-radius: 0; transition: transform .5s ease; }
.product-item:hover .photo-placeholder { transform: scale(1.02); }
.product-item::after { content: ''; position: absolute; inset: 44% 0 0; background: linear-gradient(transparent, color-mix(in oklch, var(--bg) 94%, transparent)); pointer-events: none; }
.product-item h3 { position: absolute; z-index: 2; left: 20px; right: 20px; bottom: 18px; font-size: 18px; }

.type-list { margin-top: 34px; border-top: 1px solid var(--border); }
.type-list.two-column { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 30px; border-top: 0; }
.type-list.two-column .type-row { border-top: 1px solid var(--border); }
.type-row { min-height: 62px; display: flex; align-items: center; justify-content: space-between; gap: 20px; border-bottom: 1px solid var(--border); color: var(--secondary-text); font-size: 16px; transition: color .42s ease; }
.type-row:hover { color: var(--gold-hover); }
.type-row span { transition: transform .42s ease; }
.type-row:hover span { transform: translateX(4px); }

.capability-list { margin-top: 34px; border-top: 1px solid var(--border); }
.capability-row { display: grid; grid-template-columns: 64px 1fr; gap: 18px; align-items: start; padding: 24px 0; border-bottom: 1px solid var(--border); }
.capability-row .number { color: var(--gold); font-size: 12px; letter-spacing: .1em; }
.capability-row h3 { font-size: 18px; text-transform: uppercase; letter-spacing: .015em; }
.capability-row p { margin-top: 8px; color: var(--secondary-text); font-size: 14px; }

.manufacturing-top { display: grid; grid-template-columns: 45fr 55fr; gap: clamp(42px, 6vw, 84px); align-items: center; }
.manufacturing-facts { margin-top: 28px; display: grid; gap: 14px; color: var(--secondary-text); }
.manufacturing-facts li { padding-block: 12px; border-bottom: 1px solid var(--border); }
.workflow { display: grid; grid-template-columns: repeat(6, 1fr); margin-top: 64px; border-top: 1px solid var(--border); }
.workflow-step { padding: 24px 18px 0; border-right: 1px solid var(--border); }
.workflow-step:first-child { padding-left: 0; }
.workflow-step:last-child { border-right: 0; padding-right: 0; }
.workflow-step .number { color: var(--gold); font-size: 12px; letter-spacing: .1em; }
.workflow-step h3 { margin-top: 18px; font-size: 14px; letter-spacing: .05em; text-transform: uppercase; }
.workflow-step p { margin-top: 8px; color: var(--muted-text); font-size: 12px; }

.editorial-grid { display: grid; grid-template-columns: 3fr 2fr; gap: 22px; }
.editorial-grid > .photo-placeholder { min-height: 610px; }
.editorial-stack { display: grid; grid-template-rows: repeat(2, 1fr); gap: 22px; }
.editorial-stack .photo-placeholder { min-height: 0; }
.image-label { position: absolute; top: 18px; left: 18px; z-index: 2; padding: 7px 9px; background: color-mix(in oklch, var(--bg) 88%, transparent); border: 1px solid var(--border); color: var(--primary-text); font-size: 10px; line-height: 1; letter-spacing: .12em; }

.column-list { display: grid; grid-template-columns: repeat(4, 1fr); border-block: 1px solid var(--border); }
.column-list.three { grid-template-columns: repeat(3, 1fr); }
.column-item { padding: 34px 28px; border-right: 1px solid var(--border); }
.column-item:first-child { padding-left: 0; }
.column-item:last-child { border-right: 0; padding-right: 0; }
.column-item .number { color: var(--gold); font: 700 28px/1 var(--font-heading); }
.column-item h3 { margin-top: 32px; font-size: 15px; letter-spacing: .06em; text-transform: uppercase; }
.column-item p { margin-top: 10px; color: var(--secondary-text); font-size: 14px; }

.image-cta { min-height: 420px; display: grid; place-items: center; overflow: hidden; text-align: center; }
.image-cta .photo-placeholder { position: absolute; inset: 0; z-index: -2; border: 0; border-radius: 0; min-height: 0; background: linear-gradient(140deg, var(--elevated), var(--bg-secondary)); }
.image-cta::after { content: ''; position: absolute; inset: 0; z-index: -1; background: color-mix(in oklch, var(--bg) 78%, transparent); }
.image-cta-content { width: min(100%, 760px); padding-inline: var(--page-pad); }
.image-cta-content .actions { justify-content: center; }

.page-hero-image { min-height: 520px; display: grid; align-items: end; overflow: hidden; padding-bottom: 68px; }
.page-hero-image .photo-placeholder { position: absolute; inset: 0; z-index: -2; border: 0; border-radius: 0; min-height: 0; }
.page-hero-image::after { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(0deg, color-mix(in oklch, var(--bg) 92%, transparent), color-mix(in oklch, var(--bg) 28%, transparent) 72%); }
.page-hero-content { max-width: 760px; }
.page-hero-content .lead { margin-top: 14px; }

.visual-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.visual-item .photo-placeholder { min-height: 350px; }
.visual-item h3 { margin-top: 16px; font-size: 16px; letter-spacing: .04em; text-transform: uppercase; }

.process-editorial { border-top: 1px solid var(--border); }
.process-row { display: grid; grid-template-columns: 20fr 40fr 40fr; gap: 28px; align-items: center; padding-block: 34px; border-bottom: 1px solid var(--border); }
.process-number { color: var(--gold); font: 700 clamp(38px, 5vw, 64px)/1 var(--font-heading); letter-spacing: -.04em; }
.process-copy p { margin-top: 10px; color: var(--secondary-text); }
.process-photo { min-height: 220px; }

.capability-photo { min-height: 560px; }
.capability-summary { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 34px; border-top: 1px solid var(--border); }
.capability-summary article { padding: 26px 26px 0; border-right: 1px solid var(--border); }
.capability-summary article:first-child { padding-left: 0; }
.capability-summary article:last-child { border-right: 0; padding-right: 0; }
.capability-summary strong { display: block; color: var(--gold); font: 700 32px/1 var(--font-heading); }
.capability-summary h3 { margin-top: 20px; font-size: 15px; letter-spacing: .06em; text-transform: uppercase; }
.capability-summary p { margin-top: 8px; color: var(--secondary-text); font-size: 14px; }

.dual-visual { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.dual-visual article .photo-placeholder { min-height: 500px; }
.dual-visual h3 { margin-top: 20px; font-size: 16px; letter-spacing: .06em; text-transform: uppercase; }
.dual-visual p { margin-top: 10px; color: var(--secondary-text); }

.resource-hero { min-height: 400px; display: grid; align-items: center; }
.resource-hero-grid { display: grid; grid-template-columns: 40fr 60fr; gap: clamp(40px, 6vw, 88px); align-items: center; }
.resource-hero .photo-placeholder { min-height: 310px; }
.resource-hero .lead { margin-top: 18px; }
.resource-nav-layout { display: grid; grid-template-columns: 40fr 60fr; gap: clamp(40px, 8vw, 110px); align-items: start; }
.resource-nav { border-top: 1px solid var(--border); }
.resource-nav a { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-bottom: 1px solid var(--border); font: 600 19px/1.3 var(--font-heading); letter-spacing: .02em; transition: color .42s ease; }
.resource-nav a:hover { color: var(--gold-hover); }

.article-editorial { display: grid; grid-template-columns: 55fr 45fr; gap: 22px; }
.featured-article .photo-placeholder { min-height: 610px; }
.article-stack { display: grid; grid-template-rows: repeat(2, 1fr); gap: 30px; }
.article-small { display: grid; grid-template-columns: 45fr 55fr; gap: 20px; align-items: center; }
.article-small .photo-placeholder { min-height: 260px; }
.article-copy .meta { color: var(--gold); }
.article-copy h3 { margin-top: 12px; }
.article-copy .text-link { margin-top: 18px; }

.download-list { border-top: 1px solid var(--border); }
.download-row { min-height: 96px; display: grid; grid-template-columns: 70px 1fr auto; gap: 24px; align-items: center; border-bottom: 1px solid var(--border); }
.file-type { color: var(--gold); font-size: 11px; letter-spacing: .12em; }
.download-row h3 { font-size: 18px; }
.download-row p { margin-top: 5px; color: var(--secondary-text); font-size: 14px; }

.simple-cta { min-height: 300px; display: grid; align-items: center; }
.simple-cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.simple-cta .lead { margin-top: 14px; }

.contact-hero { min-height: 360px; display: grid; align-items: center; overflow: hidden; }
.contact-hero .photo-placeholder { position: absolute; z-index: -2; inset: 0 0 0 54%; border: 0; border-radius: 0; min-height: 0; opacity: .58; }
.contact-hero::after { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, var(--bg) 32%, color-mix(in oklch, var(--bg) 76%, transparent) 66%, color-mix(in oklch, var(--bg) 35%, transparent)); }
.contact-hero .lead { margin-top: 18px; max-width: 48ch; }
.contact-layout { display: grid; grid-template-columns: 35fr 65fr; gap: clamp(42px, 6vw, 82px); align-items: start; }
.contact-details { margin-top: 32px; border-top: 1px solid var(--border); }
.contact-detail { display: grid; grid-template-columns: 24px 1fr; gap: 14px; padding: 18px 0; border-bottom: 1px solid var(--border); }
.contact-detail svg { width: 18px; height: 18px; color: var(--gold); margin-top: 3px; }
.contact-detail .meta { margin-bottom: 4px; }
.inquiry-kinds { display: flex; flex-wrap: wrap; gap: 12px 20px; margin-top: 32px; color: var(--secondary-text); font-size: 12px; letter-spacing: .07em; text-transform: uppercase; }
.inquiry-kinds li { position: relative; padding-left: 16px; }
.inquiry-kinds li::before { content: ''; position: absolute; left: 0; top: 8px; width: 7px; height: 1px; background: var(--gold); }
.form-panel { padding: 46px; background: var(--bg-secondary); border: 1px solid var(--border); border-radius: var(--radius-image); }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 32px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 12px; letter-spacing: .04em; text-transform: uppercase; }
.input, .textarea, .file-control { width: 100%; min-height: 50px; padding: 13px 14px; background: var(--elevated); color: var(--primary-text); border: 1px solid var(--border); border-radius: var(--radius-control); transition: border-color .42s ease; }
.textarea { min-height: 130px; resize: vertical; }
.input::placeholder, .textarea::placeholder { color: var(--muted-text); }
.input:focus, .textarea:focus { outline: none; border-color: var(--gold-hover); }
.input[aria-invalid="true"], .textarea[aria-invalid="true"] { border-color: var(--gold); }
.field-error { min-height: 18px; color: var(--gold-hover); font-size: 12px; }
.file-control { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 14px; color: var(--secondary-text); cursor: pointer; }
.file-control:hover { border-color: var(--gold-hover); color: var(--primary-text); }
.file-control input { position: absolute; opacity: 0; pointer-events: none; }
.form-status { display: none; margin-top: 18px; padding: 14px 16px; border: 1px solid var(--gold); color: var(--primary-text); border-radius: var(--radius-control); }
.form-status.show { display: block; }

.site-footer { background: var(--footer-bg); border-top: 1px solid var(--border); }
.footer-cta { padding-block: 54px; border-bottom: 1px solid var(--border); }
.footer-cta-inner { display: flex; justify-content: space-between; align-items: center; gap: 36px; }
.footer-cta h2 { font-size: 34px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 48px; padding-block: 64px; }
.footer-brand p { margin-top: 18px; color: var(--secondary-text); max-width: 34ch; }
.footer-column h3 { font-size: 14px; letter-spacing: .07em; text-transform: uppercase; }
.footer-links { display: grid; gap: 12px; margin-top: 18px; color: var(--secondary-text); font-size: 13px; }
.footer-links a:hover { color: var(--gold-hover); }
.footer-bottom { padding-block: 20px; border-top: 1px solid var(--border); color: var(--muted-text); font-size: 12px; }
.footer-bottom-inner { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.legal-links { display: flex; gap: 20px; }
.legal-links a:hover { color: var(--gold-hover); }

.toast { position: fixed; right: 22px; bottom: 22px; z-index: 200; max-width: 360px; padding: 14px 16px; background: var(--elevated); border: 1px solid var(--gold); border-radius: var(--radius-control); color: var(--primary-text); opacity: 0; transform: translateY(16px); pointer-events: none; transition: opacity .42s ease, transform .42s ease; }
.toast.show { opacity: 1; transform: translateY(0); }
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .52s ease, transform .52s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1120px) {
  :root { --page-pad: 32px; }
  .header-inner { grid-template-columns: 170px 1fr 150px; }
  .desktop-nav { gap: 14px; }
  .workflow { grid-template-columns: repeat(3, 1fr); row-gap: 36px; }
  .workflow-step:nth-child(3) { border-right: 0; }
  .visual-strip { grid-template-columns: repeat(2, 1fr); }
  .article-small { grid-template-columns: 1fr; }
  .article-small .photo-placeholder { min-height: 190px; }
}

@media (max-width: 860px) {
  :root { --header-height: 72px; }
  .header-inner { grid-template-columns: 1fr auto; }
  .desktop-nav, .header-cta { display: none; }
  .menu-toggle { display: block; }
  .mobile-nav { position: fixed; top: var(--header-height); left: 0; right: 0; max-height: calc(100vh - var(--header-height)); overflow-y: auto; padding: 12px var(--page-pad) 26px; background: var(--bg); border-bottom: 1px solid var(--border); }
  .mobile-nav.open { display: grid; }
  .mobile-nav a:not(.btn) { min-height: 52px; display: flex; align-items: center; border-bottom: 1px solid var(--border); color: var(--secondary-text); }
  .mobile-nav a[aria-current="page"] { color: var(--gold-hover); }
  .mobile-nav .btn { margin-top: 18px; }
  .split, .split.reverse, .manufacturing-top, .resource-hero-grid, .resource-nav-layout, .contact-layout { grid-template-columns: 1fr; }
  .split.reverse > :first-child, .split.reverse > :last-child { order: initial; }
  .home-hero { min-height: 760px; align-items: end; }
  .home-hero .hero-photo { top: 0; bottom: auto; width: 100%; height: 54%; opacity: .78; }
  .home-hero::after { background: linear-gradient(0deg, var(--bg) 28%, color-mix(in oklch, var(--bg) 72%, transparent) 58%, transparent 86%); }
  .hero-copy { width: 100%; max-width: 650px; padding: 330px 0 72px; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .editorial-grid, .article-editorial { grid-template-columns: 1fr; }
  .editorial-grid > .photo-placeholder, .featured-article .photo-placeholder { min-height: 500px; }
  .column-list { grid-template-columns: repeat(2, 1fr); }
  .column-list.three { grid-template-columns: repeat(3, 1fr); }
  .column-item:nth-child(2) { border-right: 0; }
  .column-item:nth-child(-n+2) { border-bottom: 1px solid var(--border); }
  .process-row { grid-template-columns: 100px 1fr; }
  .process-photo { grid-column: 1 / -1; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 620px) {
  :root { --page-pad: 20px; --section-space: 76px; }
  body { font-size: 15px; }
  h1 { font-size: 40px; line-height: 1.1; }
  h2 { font-size: 30px; }
  h3 { font-size: 20px; }
  .lead { font-size: 17px; }
  .actions { display: grid; }
  .actions .btn { width: 100%; }
  .proof-grid { grid-template-columns: repeat(2, 1fr); }
  .proof-item { padding: 22px 18px; border-bottom: 1px solid var(--border); }
  .proof-item:nth-child(2) { border-right: 0; }
  .proof-item:nth-child(n+3) { border-bottom: 0; }
  .product-grid { grid-template-columns: 1fr; }
  .type-list.two-column { grid-template-columns: 1fr; }
  .product-item { min-height: 300px; }
  .workflow { grid-template-columns: 1fr; border-left: 1px solid var(--border); border-top: 0; margin-left: 18px; }
  .workflow-step, .workflow-step:first-child, .workflow-step:last-child { padding: 0 0 30px 28px; border-right: 0; }
  .workflow-step:last-child { padding-bottom: 0; }
  .workflow-step .number { position: relative; }
  .workflow-step .number::before { content: ''; position: absolute; left: -32px; top: 7px; width: 7px; height: 1px; background: var(--gold); }
  .editorial-grid > .photo-placeholder { min-height: 380px; }
  .editorial-stack .photo-placeholder { min-height: 260px; }
  .column-list { grid-template-columns: 1fr; }
  .column-list.three { grid-template-columns: 1fr; }
  .column-item, .column-item:first-child, .column-item:last-child { padding: 28px 0; border-right: 0; border-bottom: 1px solid var(--border); }
  .column-item:last-child { border-bottom: 0; }
  .page-hero-image { min-height: 460px; }
  .visual-strip { grid-template-columns: 1fr; }
  .process-row { grid-template-columns: 72px 1fr; }
  .capability-summary { grid-template-columns: 1fr; }
  .capability-summary article, .capability-summary article:first-child, .capability-summary article:last-child { padding: 24px 0; border-right: 0; border-bottom: 1px solid var(--border); }
  .capability-summary article:last-child { border-bottom: 0; }
  .dual-visual { grid-template-columns: 1fr; }
  .dual-visual article .photo-placeholder { min-height: 380px; }
  .article-stack { gap: 38px; }
  .download-row { grid-template-columns: 52px 1fr; padding-block: 22px; }
  .download-row .text-link { grid-column: 1 / -1; }
  .simple-cta-inner, .footer-cta-inner { align-items: flex-start; flex-direction: column; }
  .simple-cta .btn, .footer-cta .btn { width: 100%; }
  .form-panel { padding: 28px 22px; }
  .form-grid { grid-template-columns: 1fr; }
  .field.full { grid-column: auto; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}