/*
Theme Name: WEIDUN
Theme URI: https://www.weiduntools.com/
Author: WEIDUN
Description: Industrial catalog and inquiry theme for WEIDUN garden machinery.
 Version: 0.4.9
Text Domain: weidun
*/

:root {
    --canvas: #121414;
    --surface-low: #1a1c1c;
    --bg: #e2e2e2;
    --surface: #1e2020;
    --ink: #0c0f0f;
    --muted: #b5b5b3;
    --line: #2d302f;
    --accent: #f6602a;
    --primary: #ffb59d;
    --primary-dark: #171919;
    --warn: #ffb59d;
    --dark-line: color-mix(in oklch, var(--bg) 22%, transparent);
    --font-display: "Archivo Narrow", "Arial Narrow", sans-serif;
    --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
    --container: 1160px;
    --gutter: 32px;
    --radius: 2px;
    --radius-lg: 4px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--canvas); color: var(--bg); font-family: var(--font-body); font-size: 16px; line-height: 1.55; -webkit-font-smoothing: antialiased; }
body.nav-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
img { display: block; max-width: 100%; height: auto; }
p, h1, h2, h3, h4, dl, dd, dt { margin-top: 0; }
p { text-wrap: pretty; }
h1, h2, h3, h4 { text-wrap: balance; }
h1, h2 { font-family: var(--font-display); text-transform: uppercase; font-weight: 600; letter-spacing: .01em; line-height: 1.04; }
h1 { margin-bottom: 0; font-size: clamp(42px, 5.4vw, 70px); }
h2 { margin-bottom: 0; font-size: clamp(30px, 3.5vw, 44px); }
h3 { margin-bottom: 8px; font-size: 19px; line-height: 1.2; }

.container { width: min(var(--container), calc(100% - (var(--gutter) * 2))); margin-inline: auto; }
.section { padding-block: clamp(64px, 8vw, 112px); }
.section-muted { background: var(--surface-low); }
.eyebrow { margin-bottom: 16px; color: var(--primary); font-family: var(--font-mono); font-size: 11px; letter-spacing: .14em; line-height: 1.3; text-transform: uppercase; }
.lead, .section-lead { max-width: 61ch; color: var(--muted); font-size: 18px; line-height: 1.55; }
.hero .lead { max-width: 54ch; margin: 24px 0 0; color: color-mix(in oklch, var(--bg) 74%, transparent); }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--bg); font-size: 14px; font-weight: 600; }
.text-link span { transition: transform .15s ease; }
a:hover .text-link span, .text-link:hover span { transform: translateX(3px); }

.trustbar { background: var(--ink); color: color-mix(in oklch, var(--bg) 68%, transparent); font-family: var(--font-mono); font-size: 11px; letter-spacing: .03em; }
.trustbar-inner { display: flex; justify-content: space-between; gap: 20px; padding-block: 8px; }
.trustbar-group { display: flex; flex-wrap: wrap; gap: 20px; }
.trustbar a:hover { color: var(--bg); }

.site-header { position: sticky; top: 0; z-index: 30; background: color-mix(in oklch, var(--ink) 97%, transparent); color: var(--bg); border-bottom: 1px solid var(--dark-line); backdrop-filter: blur(12px); }
.header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand, .footer-logo { display: inline-flex; flex-direction: column; font-family: var(--font-display); font-size: 27px; font-weight: 700; letter-spacing: .06em; line-height: .9; text-transform: uppercase; }
.brand small, .footer-logo small { margin-top: 7px; color: var(--warn); font-family: var(--font-mono); font-size: 9px; font-weight: 500; letter-spacing: .17em; line-height: 1; }
.nav { display: flex; align-items: center; gap: 26px; font-size: 13px; }
.nav a { color: color-mix(in oklch, var(--bg) 78%, transparent); }
.nav a:hover { color: var(--bg); }
.nav-cta { margin-left: 4px; padding: 11px 16px; background: var(--accent); color: var(--ink) !important; font-weight: 600; }
.menu-toggle { display: none; width: 42px; height: 38px; padding: 8px; border: 1px solid var(--dark-line); background: transparent; color: var(--bg); }
.menu-toggle span { display: block; width: 20px; height: 1px; margin: 4px auto; background: currentColor; }

.button { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 46px; padding: 12px 20px; border: 1px solid transparent; border-radius: var(--radius); font-size: 14px; font-weight: 600; line-height: 1.2; transition: background .15s ease, border-color .15s ease, color .15s ease, transform .08s ease; }
.button:active { transform: translateY(1px); }
.button-primary { background: var(--accent); border-color: var(--accent); color: var(--ink); }
.button-primary:hover { background: color-mix(in oklch, var(--accent) 84%, var(--ink)); }
.button-secondary { background: transparent; border-color: var(--line); color: var(--bg); }
.button-secondary:hover { border-color: var(--bg); }
.button-light { background: transparent; border-color: var(--dark-line); color: var(--bg); }
.button-light:hover { border-color: var(--bg); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

.hero { background: var(--ink); color: var(--bg); padding-block: clamp(72px, 10vw, 126px); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr); align-items: center; gap: clamp(38px, 6vw, 78px); }
.hero .eyebrow { color: var(--accent); }
.hero-motion { position: relative; overflow: hidden; isolation: isolate; }
.hero-motion::before { position: absolute; top: 0; bottom: 0; left: 50%; z-index: 1; width: 1px; background: color-mix(in oklch, var(--bg) 9%, transparent); content: ""; pointer-events: none; opacity: .36; }
.hero-background-product { position: absolute; inset: -12%; z-index: -2; overflow: hidden; opacity: .55; pointer-events: none; }
.hero-background-image { width: 100%; height: 100%; object-fit: cover; filter: blur(.5px) saturate(.92) brightness(.56) contrast(1.1); transform: scale(1.16); }
.hero-background-shade { position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, color-mix(in srgb, var(--ink) 46%, transparent) 0%, color-mix(in srgb, var(--ink) 26%, transparent) 48%, color-mix(in srgb, var(--ink) 18%, transparent) 100%); pointer-events: none; }
.hero-copy, .hero-visual { position: relative; z-index: 1; }
.hero-visual { min-width: 0; }
.hero-visual-topline, .hero-visual-caption { display: flex; align-items: center; justify-content: space-between; gap: 18px; color: color-mix(in oklch, var(--bg) 62%, transparent); font-family: var(--font-mono); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; }
.hero-visual-topline { padding-bottom: 13px; border-bottom: 1px solid var(--dark-line); }
.hero-visual-topline strong { color: var(--warn); font-weight: 500; }
.hero-product-stage { position: relative; display: grid; place-items: center; min-height: 410px; padding: clamp(22px, 4vw, 44px); overflow: hidden; border-bottom: 1px solid var(--dark-line); background: color-mix(in oklch, var(--bg) 5%, transparent); }
.hero-product-stage::after { position: absolute; right: 22px; bottom: 22px; width: 58px; height: 58px; border-right: 1px solid var(--warn); border-bottom: 1px solid var(--warn); content: ""; opacity: .72; }
.hero-product-backdrop { position: absolute; z-index: 0; inset: -19%; width: 138%; height: 138%; object-fit: cover; opacity: .24; filter: blur(22px) saturate(.78) brightness(.55) contrast(1.18); transform: scale(1.12); }
.hero-product-image { position: relative; z-index: 1; width: 100%; max-height: 385px; object-fit: contain; filter: drop-shadow(0 22px 28px rgb(0 0 0 / .48)); transition: transform .6s cubic-bezier(.2,.7,.2,1); }
.hero-visual:hover .hero-product-image { transform: scale(1.035); }
.hero-product-index { position: absolute; top: 17px; left: 18px; z-index: 2; color: color-mix(in oklch, var(--bg) 58%, transparent); font-family: var(--font-mono); font-size: 10px; letter-spacing: .1em; }
.hero-visual-caption { padding-top: 14px; }
.hero-visual-caption > div { display: grid; gap: 4px; }
.hero-caption-label { color: color-mix(in oklch, var(--bg) 47%, transparent); font-size: 9px; }
.hero-visual-caption strong { color: var(--bg); font-size: 13px; font-weight: 500; letter-spacing: .04em; }
.hero-caption-arrow { color: var(--warn); font-size: 22px; }
.hero-categories { display: flex; flex-wrap: wrap; gap: 8px 22px; margin: 56px 0 0; padding: 0; list-style: none; color: color-mix(in oklch, var(--bg) 60%, transparent); font-family: var(--font-mono); font-size: 11px; }
.hero-categories li::before { content: "/ "; color: var(--warn); }
.catalog-sheet { border: 1px solid var(--dark-line); background: color-mix(in oklch, var(--bg) 4%, transparent); }
.catalog-sheet-head, .catalog-sheet-foot { display: flex; justify-content: space-between; gap: 14px; padding: 14px 18px; border-bottom: 1px solid var(--dark-line); font-family: var(--font-mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; }
.catalog-sheet-head strong { color: var(--warn); font-weight: 500; white-space: nowrap; }
.catalog-sheet-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--dark-line); }
.catalog-sheet-tile { min-height: 154px; display: flex; flex-direction: column; justify-content: space-between; padding: 18px; background: var(--ink); }
.catalog-sheet-tile strong { font-family: var(--font-display); font-size: clamp(29px, 3vw, 40px); font-weight: 600; line-height: 1; }
.catalog-sheet-tile span { color: color-mix(in oklch, var(--bg) 74%, transparent); font-size: 13px; }
.catalog-sheet-tile small { color: color-mix(in oklch, var(--bg) 52%, transparent); font-family: var(--font-mono); font-size: 10px; }
.catalog-sheet-foot { border-top: 1px solid var(--dark-line); border-bottom: 0; color: var(--warn); font-size: 9px; letter-spacing: .08em; }

.section-head { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 34px; }
.section-head > div { min-width: 0; }
.section-head > p { max-width: 42ch; margin-bottom: 3px; color: var(--muted); }
.category-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.category-card { grid-column: span 2; overflow: hidden; border: 1px solid var(--line); background: var(--surface); }
.category-card:nth-child(4), .category-card:nth-child(5) { grid-column: span 3; }
.category-card:hover { border-color: var(--primary); }
.category-media, .product-thumb { display: grid; place-items: center; aspect-ratio: 4 / 3; padding: 18px; border-bottom: 1px solid var(--line); background: var(--surface); text-align: center; }
.category-media { overflow: hidden; position: relative; background: color-mix(in oklch, var(--line) 20%, var(--surface)); }
.category-product-image { width: 100%; height: 100%; object-fit: contain; transition: transform .45s cubic-bezier(.2,.7,.2,1); }
.category-card:hover .category-product-image { transform: scale(1.055); }
.category-media strong, .product-thumb strong { display: block; color: var(--bg); font-family: var(--font-display); font-size: clamp(26px, 3vw, 38px); line-height: 1; }
.category-media span, .product-thumb span { display: block; margin-top: 10px; color: var(--muted); font-family: var(--font-mono); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; }
.category-card-body { padding: 17px 18px 20px; }
.category-count, .product-model { color: var(--primary); font-family: var(--font-mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; }
.category-card h3 { margin: 10px 0 7px; font-size: 19px; }
.category-card p { min-height: 50px; margin-bottom: 18px; color: var(--muted); font-size: 14px; }
.supplier-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 7vw, 84px); align-items: start; }
.feature-list { display: grid; gap: 0; }
.feature { display: grid; grid-template-columns: 44px 1fr; gap: 16px; padding-block: 20px; border-top: 1px solid var(--line); }
.feature:last-child { border-bottom: 1px solid var(--line); }
.feature-mark { color: var(--primary); font-family: var(--font-mono); font-size: 12px; }
.feature h3 { margin-bottom: 6px; }
.feature p { margin-bottom: 0; color: var(--muted); font-size: 14px; }
.fact-record { border: 1px solid var(--line); background: var(--surface); }
.fact-record > div { display: grid; grid-template-columns: 150px 1fr; gap: 18px; padding: 15px 18px; border-bottom: 1px solid var(--line); }
.fact-record > div:last-child { border-bottom: 0; }
.fact-record dt { color: var(--muted); font-family: var(--font-mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
.fact-record dd { margin: 0; font-size: 14px; }

.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.product-card { position: relative; display: flex; flex-direction: column; overflow: hidden; border: 1px solid var(--line); background: var(--surface); }
.product-card-link { display: flex; flex: 1; flex-direction: column; }
.product-card .product-thumb { aspect-ratio: 4 / 3; min-height: 0; overflow: hidden; }
.product-card-image { width: 100%; height: 100%; min-height: 0; max-height: 100%; object-fit: contain; }
.product-card-body { display: flex; flex: 1; flex-direction: column; gap: 10px; padding: 16px 18px 14px; }
.product-card h3 { margin-bottom: 0; font-size: 18px; }
.product-card p:not(.product-model) { margin-bottom: 2px; color: var(--muted); font-size: 13px; }
.product-preview-status { color: var(--muted); font-family: var(--font-mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
.spec-list { margin: 2px 0 0; border-top: 1px solid var(--line); }
.spec-list > div { display: flex; justify-content: space-between; gap: 12px; padding: 7px 0; border-bottom: 1px solid var(--line); }
.spec-list dt { margin: 0; color: var(--muted); font-size: 11px; }
.spec-list dd { margin: 0; color: var(--bg); font-family: var(--font-mono); font-size: 11px; text-align: right; }
.inquiry-toggle { display: flex; align-items: center; gap: 8px; width: 100%; padding: 12px 18px; border: 0; border-top: 1px solid var(--line); background: color-mix(in oklch, var(--bg) 7%, var(--surface)); color: var(--bg); font-size: 12px; text-align: left; }
.inquiry-toggle:hover { background: color-mix(in oklch, var(--primary) 9%, var(--surface)); }
.check-box { width: 15px; height: 15px; display: inline-grid; place-items: center; border: 1px solid var(--muted); border-radius: 2px; color: var(--surface); font-size: 11px; }
.inquiry-toggle[aria-pressed="true"] { background: color-mix(in oklch, var(--primary) 12%, var(--surface)); color: var(--primary); }
.inquiry-toggle[aria-pressed="true"] .check-box { border-color: var(--primary); background: var(--primary); }
.inquiry-toggle[aria-pressed="true"] .check-box::after { content: "✓"; }

.oem-section { background: var(--ink); color: var(--bg); }
.oem-section .eyebrow, .oem-section .text-link { color: var(--warn); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.process-grid article { padding-top: 16px; border-top: 2px solid var(--bg); }
.process-grid span { color: var(--accent); font-family: var(--font-mono); font-size: 12px; }
.process-grid h3 { margin-top: 12px; }
.process-grid p { margin-bottom: 0; color: color-mix(in oklch, var(--bg) 64%, transparent); font-size: 14px; }
.catalog-section { background: var(--surface); }
.catalog-layout, .inquiry-layout { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(300px, .92fr); gap: clamp(36px, 8vw, 100px); align-items: center; }
.catalog-list { margin: 26px 0 30px; padding: 0; list-style: none; }
.catalog-list li { padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.catalog-list li::before { content: "—"; margin-right: 12px; color: var(--accent); font-family: var(--font-mono); }
.catalog-cover { min-height: 370px; display: flex; flex-direction: column; justify-content: space-between; padding: 30px; border: 1px solid var(--ink); background: var(--ink); color: var(--bg); }
.catalog-cover span, .catalog-cover small, .catalog-cover b { font-family: var(--font-mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }
.catalog-cover strong { font-family: var(--font-display); font-size: clamp(54px, 9vw, 100px); line-height: .9; letter-spacing: .05em; }
.catalog-cover small { color: var(--warn); }
.catalog-cover b { color: color-mix(in oklch, var(--bg) 60%, transparent); font-weight: 400; }
.inquiry-section { background: color-mix(in oklch, var(--primary) 9%, var(--canvas)); }
.inquiry-contact { margin-top: 38px; border-top: 1px solid var(--line); }
.inquiry-contact > div { display: grid; grid-template-columns: 100px 1fr; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.inquiry-contact span { color: var(--muted); font-family: var(--font-mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
.inquiry-contact strong { font-weight: 500; }
.inquiry-form-card { padding: clamp(22px, 4vw, 38px); border: 1px solid var(--line); background: var(--surface); }
.selected-models { margin-bottom: 20px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.selected-models > span { color: var(--muted); font-family: var(--font-mono); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; }
.selected-models p { margin: 8px 0 0; color: var(--muted); font-size: 13px; }
.selected-model-list { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 10px; }
.selected-model { padding: 5px 8px; background: color-mix(in oklch, var(--primary) 11%, var(--surface)); color: var(--primary); font-family: var(--font-mono); font-size: 11px; }
.quote-form { display: grid; gap: 14px; }
.form-hp { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }
.quote-form label { display: grid; gap: 6px; color: var(--muted); font-size: 12px; }
.quote-form input, .quote-form textarea, .quote-form select { width: 100%; padding: 11px 12px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--ink); color: var(--bg); outline: 0; }
.quote-form input:focus, .quote-form textarea:focus, .quote-form select:focus { border-color: var(--primary); box-shadow: 0 0 0 2px color-mix(in oklch, var(--primary) 18%, transparent); }
.quote-form textarea { min-height: 120px; resize: vertical; }
.quote-form .button { width: 100%; border: 0; }

.page-banner { padding-block: 72px; background: var(--ink); color: var(--bg); }
.page-banner h1 { max-width: 18ch; }
.page-banner .eyebrow { color: var(--accent); }
.page-banner p:last-child { max-width: 62ch; margin: 20px 0 0; color: color-mix(in oklch, var(--bg) 70%, transparent); }
.page-banner-visual { position: relative; overflow: hidden; isolation: isolate; padding-block: clamp(72px, 9vw, 118px); }
.page-banner-visual::after { position: absolute; inset: auto 0 0; z-index: -1; height: 1px; background: var(--dark-line); content: ""; }
.page-banner-grid { display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(330px, .98fr); align-items: center; gap: clamp(38px, 7vw, 92px); }
.page-banner-media { position: relative; min-height: 310px; display: grid; place-items: center; overflow: hidden; border: 1px solid var(--dark-line); background: color-mix(in oklch, var(--bg) 5%, transparent); }
.page-banner-media::before, .product-showcase::before { position: absolute; inset: 16px; border: 1px solid color-mix(in oklch, var(--bg) 12%, transparent); content: ""; pointer-events: none; }
.page-banner-media span { position: absolute; right: 18px; bottom: 16px; color: var(--warn); font-family: var(--font-mono); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; }
.page-banner-backdrop { position: absolute; inset: -24%; width: 148%; height: 148%; object-fit: cover; opacity: .25; filter: blur(22px) saturate(.84) brightness(.56) contrast(1.18); transform: scale(1.1); }
.page-banner-product { position: relative; z-index: 1; width: 88%; max-height: 250px; object-fit: contain; filter: drop-shadow(0 20px 28px rgb(0 0 0 / .44)); }
.page-fact-board { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; border: 1px solid var(--dark-line); background: var(--dark-line); }
.page-fact-board div { min-height: 138px; display: flex; flex-direction: column; justify-content: space-between; padding: 18px; background: color-mix(in oklch, var(--bg) 5%, var(--ink)); }
.page-fact-board span, .metric-strip span, .info-panel span, .contact-card span, .address-panel span, .product-showcase-caption span { color: var(--primary); font-family: var(--font-mono); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; }
.page-fact-board strong { max-width: 18ch; font-size: 17px; font-weight: 500; line-height: 1.35; }
.page-fact-board .fact-brand-logo { width: 160px; max-width: 100%; height: auto; display: block; }
.page-section { background: var(--canvas); }
.info-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.info-grid-four { grid-template-columns: repeat(4, 1fr); }
.info-panel { min-height: 238px; display: flex; flex-direction: column; justify-content: space-between; padding: 20px; border: 1px solid var(--line); background: var(--surface); }
.info-panel h3 { margin-top: 34px; }
.info-panel p { margin-bottom: 0; color: var(--muted); font-size: 14px; }
.step-list { counter-reset: step; margin: 0; padding: 0; border: 1px solid var(--line); background: var(--surface); list-style: none; }
.step-list li { display: grid; grid-template-columns: 54px minmax(130px, .7fr) minmax(0, 1.3fr); gap: 18px; align-items: start; padding: 20px; border-bottom: 1px solid var(--line); }
.step-list li:last-child { border-bottom: 0; }
.step-list li::before { counter-increment: step; content: counter(step, decimal-leading-zero); color: var(--primary); font-family: var(--font-mono); font-size: 11px; letter-spacing: .1em; }
.step-list strong { font-size: 17px; font-weight: 600; }
.step-list span { color: var(--muted); font-size: 14px; }
.product-showcase { position: relative; min-height: 390px; display: grid; place-items: center; overflow: hidden; border: 1px solid var(--line); background: var(--surface); }
.product-showcase-backdrop { position: absolute; inset: -28%; width: 156%; height: 156%; object-fit: cover; opacity: .24; filter: blur(22px) saturate(.85) brightness(.5) contrast(1.14); transform: scale(1.12); }
.product-showcase-image { position: relative; z-index: 1; width: 86%; max-height: 280px; object-fit: contain; filter: drop-shadow(0 22px 26px rgb(0 0 0 / .42)); }
.product-showcase-caption { position: absolute; right: 18px; bottom: 18px; left: 18px; z-index: 2; display: flex; justify-content: space-between; gap: 16px; align-items: end; padding-top: 14px; border-top: 1px solid var(--line); }
.product-showcase-caption strong { color: var(--bg); font-size: 15px; font-weight: 500; text-align: right; }
.product-line-list, .catalog-family-grid { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.product-line-list li, .catalog-family-row { border-bottom: 1px solid var(--line); }
.product-line-list a, .catalog-family-row { display: grid; grid-template-columns: minmax(150px, .62fr) minmax(0, 1.38fr); gap: 20px; padding: 16px 0; }
.product-line-list strong, .catalog-family-row strong { font-size: 15px; font-weight: 600; }
.product-line-list span, .catalog-family-row span { color: var(--muted); font-size: 14px; }
.product-line-list a:hover strong, .catalog-family-row:hover strong { color: var(--primary); }
.page-cta { display: flex; align-items: center; justify-content: space-between; gap: 26px; }
.page-cta-actions, .download-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.download-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, .72fr); gap: clamp(32px, 6vw, 74px); align-items: center; }
.metric-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; border: 1px solid var(--line); background: var(--line); }
.metric-strip div { min-height: 150px; display: flex; flex-direction: column; justify-content: space-between; padding: 18px; background: var(--surface); }
.metric-strip strong { font-family: var(--font-display); font-size: clamp(38px, 5vw, 64px); line-height: .92; }
.catalog-cover-compact { min-height: 310px; border-color: var(--dark-line); }
.catalog-cover-compact strong { font-size: clamp(76px, 12vw, 126px); }
.catalog-family-grid { border-color: var(--line); }
.catalog-family-row { align-items: start; }
.contact-layout { display: grid; grid-template-columns: minmax(0, .95fr) minmax(360px, 1.05fr); gap: clamp(34px, 6vw, 78px); align-items: start; }
.contact-card-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin-top: 30px; border: 1px solid var(--line); background: var(--line); }
.contact-card { min-height: 132px; display: flex; flex-direction: column; justify-content: space-between; padding: 18px; background: var(--surface); }
.contact-card strong { overflow-wrap: anywhere; font-size: 16px; font-weight: 500; line-height: 1.35; }
.contact-card[href]:hover strong { color: var(--primary); }
.address-panel { display: grid; gap: 12px; margin-top: 16px; padding: 18px; border: 1px solid var(--line); background: var(--surface); }
.address-panel strong { max-width: 54ch; font-size: 15px; font-weight: 500; line-height: 1.45; }

.products-archive-hero { position: relative; overflow: hidden; isolation: isolate; background: var(--ink); color: var(--bg); }
.products-archive-backdrop { position: absolute; inset: -18%; z-index: -2; overflow: hidden; opacity: .32; pointer-events: none; }
.products-archive-backdrop-image { width: 100%; height: 100%; object-fit: cover; filter: blur(30px) saturate(.78) brightness(.44) contrast(1.22); transform: scale(1.18); }
.products-archive-hero::after { position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, var(--ink) 0%, color-mix(in srgb, var(--ink) 90%, transparent) 44%, color-mix(in srgb, var(--ink) 35%, transparent) 100%); content: ""; pointer-events: none; }
.products-archive-hero-grid { display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(390px, .98fr); align-items: center; gap: clamp(38px, 6vw, 82px); min-height: 610px; padding-block: clamp(68px, 9vw, 112px); }
.products-archive-copy { min-width: 0; }
.products-archive-copy h1 { max-width: 10ch; margin-bottom: 0; font-size: clamp(48px, 6.3vw, 86px); }
.products-archive-copy h1 span { color: var(--accent); }
.products-archive-copy .lead { max-width: 48ch; margin: 24px 0 0; color: color-mix(in oklch, var(--bg) 72%, transparent); }
.products-archive-stats { display: flex; flex-wrap: wrap; gap: 28px; margin-top: 58px; padding-top: 18px; border-top: 1px solid var(--dark-line); }
.products-archive-stats div { display: grid; gap: 5px; min-width: 105px; }
.products-archive-stats strong { color: var(--bg); font-family: var(--font-display); font-size: 28px; font-weight: 600; line-height: 1; }
.products-archive-stats span, .products-archive-caption, .products-archive-visual-head { color: color-mix(in oklch, var(--bg) 56%, transparent); font-family: var(--font-mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
.products-archive-visual { min-width: 0; }
.products-archive-visual-head, .products-archive-caption { display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.products-archive-visual-head { padding-bottom: 13px; border-bottom: 1px solid var(--dark-line); }
.products-archive-visual-head strong { color: var(--warn); font-weight: 500; }
.products-archive-stage { position: relative; display: grid; place-items: center; min-height: 390px; padding: 28px 36px; overflow: hidden; border-bottom: 1px solid var(--dark-line); background: color-mix(in oklch, var(--bg) 5%, transparent); }
.products-archive-stage::before { position: absolute; inset: 18px; border: 1px solid color-mix(in oklch, var(--bg) 9%, transparent); content: ""; pointer-events: none; }
.products-archive-stage::after { position: absolute; right: 22px; bottom: 22px; width: 54px; height: 54px; border-right: 1px solid var(--warn); border-bottom: 1px solid var(--warn); content: ""; opacity: .72; }
.products-archive-product-backdrop { position: absolute; z-index: 0; inset: -21%; width: 142%; height: 142%; object-fit: cover; opacity: .25; filter: blur(23px) saturate(.78) brightness(.5) contrast(1.16); transform: scale(1.12); }
.products-archive-product { position: relative; z-index: 1; width: 100%; max-height: 350px; object-fit: contain; filter: drop-shadow(0 22px 28px rgb(0 0 0 / .5)); }
.products-archive-index { position: absolute; top: 28px; left: 30px; z-index: 2; color: color-mix(in oklch, var(--bg) 55%, transparent); font-family: var(--font-mono); font-size: 10px; letter-spacing: .1em; }
.products-archive-caption { padding-top: 14px; }
.products-archive-caption strong { color: var(--bg); font-size: 13px; font-weight: 500; }
.products-families-section { background: var(--surface-low); }
.products-family-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.product-family-card { grid-column: span 2; overflow: hidden; border: 1px solid var(--line); background: var(--surface); transition: border-color .2s ease, transform .2s ease; }
.product-family-card:nth-child(4), .product-family-card:nth-child(5) { grid-column: span 3; }
.product-family-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.product-family-media { position: relative; display: grid; place-items: center; min-height: 210px; overflow: hidden; border-bottom: 1px solid var(--line); background: var(--ink); }
.product-family-media::after { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 45%, rgb(12 15 15 / .56)); content: ""; pointer-events: none; }
.product-family-backdrop { position: absolute; inset: -22%; width: 144%; height: 144%; object-fit: cover; opacity: .32; filter: blur(20px) saturate(.72) brightness(.55); transform: scale(1.12); }
.product-family-image { position: relative; z-index: 1; width: 86%; height: 175px; object-fit: contain; filter: drop-shadow(0 13px 15px rgb(0 0 0 / .42)); transition: transform .4s cubic-bezier(.2,.7,.2,1); }
.product-family-card:hover .product-family-image { transform: scale(1.06); }
.product-family-number { position: absolute; top: 14px; left: 16px; z-index: 2; color: var(--warn); font-family: var(--font-mono); font-size: 10px; letter-spacing: .09em; }
.product-family-empty-mark { color: color-mix(in oklch, var(--bg) 72%, transparent); font-family: var(--font-display); font-size: 38px; line-height: .9; text-align: center; }
.product-family-body { padding: 18px 19px 20px; }
.product-family-label { margin-bottom: 9px; color: var(--primary); font-family: var(--font-mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
.product-family-body h3 { margin-bottom: 7px; font-size: 20px; }
.product-family-body > p:not(.product-family-label) { min-height: 50px; margin-bottom: 19px; color: var(--muted); font-size: 14px; }
.products-models-section { background: var(--canvas); }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(30px, 6vw, 76px); align-items: start; }
.card { padding: 22px; border: 1px solid var(--line); background: var(--surface); }
.band { background: var(--primary-dark); color: var(--bg); }
.band p { color: color-mix(in oklch, var(--bg) 72%, transparent); }
.spec-table { width: 100%; border-collapse: collapse; border: 1px solid var(--line); background: var(--surface); }
.spec-table th, .spec-table td { padding: 13px 16px; border-bottom: 1px solid var(--line); text-align: left; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }
.spec-table th { width: 35%; color: var(--muted); font-family: var(--font-mono); font-size: 11px; font-weight: 400; text-transform: uppercase; }
.product-thumb img { width: 100%; height: 100%; min-height: 0; max-height: 100%; object-fit: contain; }

.product-breadcrumb { border-bottom: 1px solid var(--line); color: var(--muted); font-family: var(--font-mono); font-size: 11px; }
.product-breadcrumb-inner { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; padding-block: 12px; }
.product-breadcrumb a:hover { color: var(--bg); }
.product-breadcrumb strong { color: var(--bg); font-weight: 500; }
.product-detail-hero { padding-block: clamp(38px, 5vw, 68px); background: var(--canvas); }
.product-detail-grid { display: grid; grid-template-areas: "summary media"; grid-template-columns: minmax(270px, .72fr) minmax(0, 1.28fr); gap: 0; align-items: stretch; border: 1px solid var(--line); background: var(--surface); }
.product-detail-media { grid-area: media; overflow: hidden; border-left: 1px solid var(--line); background: var(--surface); }
.product-media-header, .product-media-footer { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 13px 16px; color: var(--muted); font-family: var(--font-mono); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; }
.product-media-header { border-bottom: 1px solid var(--line); }
.product-media-header strong { color: var(--primary); font-weight: 500; }
.product-media-footer { border-top: 1px solid var(--line); color: var(--muted); }
.product-detail-stage { position: relative; display: grid; place-items: center; min-height: clamp(430px, 54vw, 620px); padding: clamp(26px, 5vw, 64px); overflow: hidden; background-color: var(--surface-low); background-image: linear-gradient(var(--dark-line) 1px, transparent 1px), linear-gradient(90deg, var(--dark-line) 1px, transparent 1px); background-size: 22px 22px; color: var(--bg); text-align: center; }
.product-detail-stage::before { position: absolute; inset: 18px; border: 1px solid color-mix(in oklch, var(--bg) 9%, transparent); content: ""; pointer-events: none; }
.product-detail-stage::after { position: absolute; right: 18px; bottom: 18px; width: 38px; height: 38px; border-right: 1px solid var(--warn); border-bottom: 1px solid var(--warn); content: ""; }
.product-detail-stage img { position: relative; z-index: 1; width: 100%; height: 100%; object-fit: contain; transition: transform .6s cubic-bezier(.2,.7,.2,1); }
.product-detail-stage .product-detail-image-background { position: absolute; z-index: 0; inset: -18%; width: 136%; height: 136%; opacity: .24; filter: blur(25px) saturate(.72) brightness(.5) contrast(1.16); transform: scale(1.13); }
.product-detail-media:hover .product-detail-stage .product-detail-image { transform: scale(1.035); }
.product-detail-stage strong { display: block; font-family: var(--font-display); font-size: clamp(48px, 7vw, 82px); font-weight: 600; letter-spacing: .03em; line-height: 1; text-transform: uppercase; }
.product-detail-stage small { display: block; margin-top: 13px; color: color-mix(in oklch, var(--bg) 56%, transparent); font-family: var(--font-mono); font-size: 10px; letter-spacing: .16em; text-transform: uppercase; }
.product-detail-pending { position: absolute; top: 15px; left: 16px; color: var(--warn); font-family: var(--font-mono); font-size: 10px; letter-spacing: .13em; text-transform: uppercase; }
.product-detail-thumbs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; border-top: 1px solid var(--line); background: var(--line); }
.product-detail-thumbs div { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 100px; padding: 12px; background: var(--surface); text-align: center; }
.product-detail-thumbs strong { font-family: var(--font-display); font-size: 18px; }
.product-detail-thumbs span { margin-top: 4px; color: var(--muted); font-family: var(--font-mono); font-size: 9px; letter-spacing: .08em; text-transform: uppercase; }
.product-detail-summary { grid-area: summary; display: flex; flex-direction: column; align-items: flex-start; padding: clamp(24px, 4vw, 46px) clamp(22px, 3.2vw, 38px); }
.product-detail-summary h1 { max-width: 9ch; font-size: clamp(40px, 4.2vw, 58px); }
.product-detail-category { display: flex; align-items: center; gap: 9px; margin: 15px 0 0; color: var(--muted); font-family: var(--font-mono); font-size: 12px; }
.product-detail-category span { width: 7px; height: 7px; background: var(--primary); }
.product-detail-description { margin-top: 19px; }
.product-key-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin-top: 26px; border: 1px solid var(--line); background: var(--line); }
.product-key-grid div { min-width: 0; padding: 14px 15px; background: var(--surface); transition: background .2s ease, transform .2s ease; }
.product-key-grid div:hover { background: color-mix(in oklch, var(--primary) 7%, var(--surface)); transform: translateY(-2px); }
.product-key-grid span { display: block; color: var(--muted); font-family: var(--font-mono); font-size: 9px; letter-spacing: .08em; text-transform: uppercase; }
.product-key-grid strong { display: block; margin-top: 5px; overflow-wrap: anywhere; font-family: var(--font-mono); font-size: 19px; font-weight: 500; }
.product-detail-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: auto; padding-top: 30px; }
.product-detail-actions .button, .product-detail-actions .product-inquiry-toggle { min-height: 52px; padding-inline: 26px; }
.product-inquiry-toggle { display: inline-flex; align-items: center; justify-content: center; gap: 9px; padding: 12px 18px; border: 1px solid var(--line); border-radius: var(--radius); background: transparent; color: var(--bg); font-size: 14px; font-weight: 600; }
.product-inquiry-toggle:hover { border-color: var(--bg); }
.product-inquiry-toggle[aria-pressed="true"] { border-color: var(--primary); background: color-mix(in oklch, var(--primary) 10%, var(--surface)); color: var(--primary); }
.product-inquiry-toggle[aria-pressed="true"] .check-box { border-color: var(--primary); background: var(--primary); }
.product-inquiry-toggle[aria-pressed="true"] .check-box::after { content: "✓"; }
.product-detail-note, .form-note { margin: 14px 0 0; color: var(--muted); font-size: 13px; }
.product-detail-columns { display: grid; grid-template-columns: minmax(260px, 1fr) minmax(0, 2fr); gap: clamp(34px, 7vw, 82px); align-items: start; }
.product-spec-section { padding-top: 20px; }
.product-spec-section > .container > :first-child { position: sticky; top: 118px; }
.product-specs { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); }
.product-specs h3 { margin: 0; padding: 12px 20px; border-bottom: 1px solid var(--line); background: var(--ink); color: var(--warn); font-family: var(--font-mono); font-size: 10px; font-weight: 500; letter-spacing: .12em; text-transform: uppercase; }
.product-specs div { display: grid; grid-template-columns: 240px 1fr; gap: 20px; padding: 13px 20px; border-bottom: 1px solid var(--line); }
.product-specs div:last-child { border-bottom: 0; }
.product-specs span { color: var(--muted); font-size: 13px; }
.product-specs strong { font-family: var(--font-mono); font-size: 14px; font-weight: 500; }
.product-specs .is-pending { color: var(--muted); font-family: var(--font-body); font-style: italic; font-weight: 400; }
.product-section-intro { max-width: 46ch; margin-bottom: 38px; }
.buyer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.buyer-grid article { padding: 19px; border: 1px solid var(--line); background: var(--surface); }
.buyer-grid article > span { color: var(--primary); font-family: var(--font-mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
.buyer-grid h3 { margin-top: 11px; font-size: 16px; }
.buyer-grid p { margin-bottom: 0; color: var(--muted); font-size: 13px; }
.product-option-list { margin: 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.product-option-list li { display: grid; grid-template-columns: 160px 1fr; gap: 24px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.product-option-list strong { font-family: var(--font-mono); font-size: 12px; font-weight: 500; }
.product-option-list span { color: var(--muted); font-size: 14px; }
.product-related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.product-related-card { display: flex; flex-direction: column; overflow: hidden; border: 1px solid var(--line); background: var(--surface); }
.product-related-link { display: flex; flex: 1; flex-direction: column; }
a.product-related-link:hover h3 { color: var(--primary); }
.product-related-media { display: grid; place-items: center; aspect-ratio: 4 / 3; overflow: hidden; padding: 18px; border-bottom: 1px solid var(--line); background: color-mix(in oklch, var(--line) 16%, var(--surface)); text-align: center; }
.product-related-media img { width: 100%; height: 100%; object-fit: contain; transition: transform .45s cubic-bezier(.2,.7,.2,1); }
.product-related-card:hover .product-related-media img { transform: scale(1.05); }
.product-related-media strong { font-family: var(--font-display); font-size: 32px; }
.product-related-media span { display: block; margin-top: 8px; color: var(--muted); font-family: var(--font-mono); font-size: 9px; letter-spacing: .12em; text-transform: uppercase; }
.product-related-body { flex: 1; padding: 16px 18px; }
.product-related-body > p { margin-bottom: 7px; color: var(--primary); font-family: var(--font-mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
.product-related-body h3 { font-size: 17px; }
.product-related-body dl { margin: 13px 0 0; border-top: 1px solid var(--line); }
.product-related-body dl div { display: flex; justify-content: space-between; gap: 12px; padding: 7px 0; border-bottom: 1px solid var(--line); }
.product-related-body dt { color: var(--muted); font-size: 11px; }
.product-related-body dd { font-family: var(--font-mono); font-size: 11px; text-align: right; }
.product-inquiry-layout { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr); gap: clamp(34px, 6vw, 72px); align-items: start; }
.product-inquiry-aside { display: grid; gap: 34px; }
.product-inquiry-aside > div { border-top: 2px solid var(--primary); padding-top: 16px; }
.product-inquiry-aside h3 { font-size: 17px; }
.product-inquiry-aside dl { margin: 14px 0 0; }
.product-inquiry-aside dl div { display: grid; grid-template-columns: 80px 1fr; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.product-inquiry-aside dt { color: var(--muted); font-family: var(--font-mono); font-size: 9px; letter-spacing: .08em; text-transform: uppercase; }
.product-inquiry-aside dd { overflow-wrap: anywhere; font-size: 13px; }
.product-inquiry-aside ol { margin: 14px 0 0; padding-left: 24px; color: var(--muted); font-size: 13px; }
.product-inquiry-aside li { padding: 5px 0; }
.quote-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.quote-form-grid + label { margin-top: 0; }
.product-mobile-cta { display: none; }

.site-footer { padding-block: 58px 26px; background: var(--ink); color: color-mix(in oklch, var(--bg) 67%, transparent); font-size: 13px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.5fr; gap: 30px; }
.footer-brand p { max-width: 30ch; margin-top: 24px; }
.footer-col h3 { margin-bottom: 14px; color: var(--bg); font-family: var(--font-mono); font-size: 11px; font-weight: 500; letter-spacing: .14em; text-transform: uppercase; }
.footer-col a { display: block; margin: 8px 0; color: color-mix(in oklch, var(--bg) 78%, transparent); }
.footer-col a:hover { color: var(--bg); }
.footer-contact p { max-width: 32ch; margin-top: 16px; }
.footer-base { display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; margin-top: 46px; padding-top: 16px; border-top: 1px solid var(--dark-line); color: color-mix(in oklch, var(--bg) 46%, transparent); font-family: var(--font-mono); font-size: 10px; }
.mobile-cta { display: none; }

[data-reveal-section], [data-reveal="card"], [data-reveal="image"], [data-reveal="summary"] { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
[data-reveal="image"] { transform: translateY(22px) scale(.985); transition-delay: .12s; }
[data-reveal="summary"] { transition-delay: .08s; }
[data-reveal="card"]:nth-child(2) { transition-delay: .06s; }
[data-reveal="card"]:nth-child(3) { transition-delay: .12s; }
[data-reveal="card"]:nth-child(4) { transition-delay: .18s; }
[data-reveal="card"]:nth-child(5) { transition-delay: .24s; }
[data-reveal-section].is-revealed, [data-reveal="card"].is-revealed, [data-reveal="image"].is-revealed, [data-reveal="summary"].is-revealed { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
    [data-reveal-section], [data-reveal="card"], [data-reveal="image"], [data-reveal="summary"] { opacity: 1; transform: none; }
}

@media (max-width: 920px) {
    .trustbar-contact { display: none; }
    .menu-toggle { display: block; }
    .nav { position: absolute; top: 100%; left: 0; right: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 14px var(--gutter) 20px; background: var(--ink); border-bottom: 1px solid var(--dark-line); }
    body.nav-open .nav { display: flex; }
    .nav a { padding: 11px 0; }
    .nav-cta { margin: 8px 0 0; text-align: center; }
    .hero-grid { grid-template-columns: minmax(0, 1.08fr) minmax(280px, .92fr); gap: 28px; }
    .products-archive-hero-grid { grid-template-columns: minmax(0, 1.04fr) minmax(280px, .96fr); gap: 30px; min-height: 540px; }
    .products-archive-copy h1 { font-size: clamp(46px, 6vw, 70px); }
    .products-archive-stage { min-height: 320px; padding-inline: 24px; }
    .products-archive-product { max-height: 285px; }
    .product-family-media { min-height: 180px; }
    .product-family-image { height: 145px; }
    .page-banner-grid, .supplier-grid, .catalog-layout, .inquiry-layout, .split, .download-layout, .contact-layout { grid-template-columns: 1fr; }
    .page-banner-media, .product-showcase { min-height: 300px; }
    .info-grid, .info-grid-four { grid-template-columns: repeat(2, 1fr); }
    .product-grid { grid-template-columns: repeat(2, 1fr); }
    .process-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .product-detail-grid { grid-template-areas: "summary" "media"; grid-template-columns: 1fr; }
    .product-detail-media { border-top: 1px solid var(--line); border-left: 0; }
    .product-detail-columns, .product-inquiry-layout { grid-template-columns: 1fr; }
    .buyer-grid { grid-template-columns: repeat(2, 1fr); }
    .hero { padding-block: 78px 88px; }
    .hero .lead { font-size: 16px; }
    .hero-actions { margin-top: 24px; }
    .hero-categories { margin-top: 32px; }
    .hero-product-stage { min-height: 320px; }
    .product-spec-section > .container > :first-child { position: static; }
}

@media (max-width: 640px) {
    :root { --gutter: 18px; }
    .container { width: min(100% - 36px, var(--container)); }
    .trustbar { display: none; }
    .header-inner { min-height: 68px; }
    .brand { font-size: 24px; }
    .hero { padding-block: 64px 72px; }
    .hero-grid { grid-template-columns: 1fr; gap: 38px; }
    .products-archive-hero-grid { grid-template-columns: 1fr; gap: 42px; min-height: 0; padding-block: 64px 72px; }
    .products-archive-copy h1 { max-width: 9ch; font-size: clamp(48px, 14vw, 70px); }
    .products-archive-stats { gap: 18px; margin-top: 42px; }
    .products-archive-stats div { min-width: 88px; }
    .products-archive-visual-head, .products-archive-caption { font-size: 9px; }
    .products-archive-stage { min-height: 300px; padding: 22px; }
    .products-archive-stage::before { inset: 12px; }
    .products-archive-product { max-height: 255px; }
    .hero-motion::before { display: none; }
    .hero-product-stage { min-height: 280px; padding: 22px; }
    .hero-product-image { max-height: 255px; }
    .hero-visual-caption { align-items: flex-start; }
    .hero-visual-caption > div:nth-child(2) { max-width: 45%; text-align: right; }
    .hero-categories { margin-top: 38px; gap: 8px 14px; }
    .catalog-sheet-grid, .category-grid, .product-grid, .process-grid, .footer-grid, .products-family-grid { grid-template-columns: 1fr; }
    .page-banner { padding-block: 58px; }
    .page-banner h1 { max-width: 10ch; }
    .page-banner-grid, .info-grid, .info-grid-four, .download-layout, .contact-layout { grid-template-columns: 1fr; }
    .page-banner-media, .product-showcase { min-height: 250px; }
    .page-banner-product, .product-showcase-image { max-height: 190px; }
    .page-fact-board, .contact-card-grid, .metric-strip { grid-template-columns: 1fr; }
    .page-fact-board div, .contact-card, .metric-strip div { min-height: 112px; }
    .info-panel { min-height: 190px; }
    .step-list li, .product-line-list a, .catalog-family-row { grid-template-columns: 1fr; gap: 6px; }
    .page-cta { align-items: stretch; flex-direction: column; }
    .page-cta-actions, .download-actions { flex-direction: column; }
    .page-cta-actions .button, .download-actions .button { width: 100%; }
    .category-card, .category-card:nth-child(4), .category-card:nth-child(5) { grid-column: auto; }
    .product-family-card, .product-family-card:nth-child(4), .product-family-card:nth-child(5) { grid-column: auto; }
    .section-head { display: block; }
    .section-head > p { margin-top: 16px; }
    .fact-record > div, .inquiry-contact > div { grid-template-columns: 1fr; gap: 5px; }
    .catalog-cover { min-height: 280px; }
    .mobile-cta { position: fixed; right: 0; bottom: 0; left: 0; z-index: 40; display: flex; gap: 8px; padding: 10px 14px; background: color-mix(in oklch, var(--ink) 97%, transparent); border-top: 1px solid var(--dark-line); }
    .mobile-cta .button { flex: 1; min-height: 42px; padding-inline: 10px; }
    .mobile-cta .button-secondary { border-color: var(--dark-line); color: var(--bg); }
    .footer-base { padding-bottom: 52px; }
    .product-key-grid { grid-template-columns: repeat(2, 1fr); }
    .product-media-header, .product-media-footer { padding-inline: 12px; font-size: 9px; }
    .product-detail-stage::before { inset: 12px; }
    .product-detail-stage::after { right: 12px; bottom: 12px; }
    .product-detail-stage { min-height: 330px; background-size: 18px 18px; }
    .product-specs div, .product-option-list li { grid-template-columns: 1fr; gap: 4px; }
    .buyer-grid, .product-related-grid, .quote-form-grid { grid-template-columns: 1fr; }
    .product-mobile-cta { position: fixed; right: 0; bottom: 0; left: 0; z-index: 42; display: flex; gap: 8px; padding: 10px 14px; border-top: 1px solid var(--dark-line); background: color-mix(in oklch, var(--ink) 97%, transparent); }
    .product-mobile-cta > * { flex: 1; min-width: 0; min-height: 43px; padding: 9px 10px; }
    .product-mobile-cta .product-inquiry-toggle { border-color: var(--dark-line); color: var(--bg); font-size: 12px; }
    .product-mobile-cta .product-inquiry-toggle[aria-pressed="true"] { border-color: color-mix(in oklch, var(--warn) 60%, transparent); background: color-mix(in oklch, var(--warn) 10%, transparent); color: var(--warn); }
    .product-mobile-cta .product-inquiry-toggle[aria-pressed="true"] .check-box { border-color: var(--warn); background: var(--warn); color: var(--ink); }
    body.single-weidun_product .mobile-cta { display: none; }
}