:root {
  --paper: #f3f0e9;
  --paper-2: #e9e4da;
  --ink: #090c0b;
  --muted: #686c67;
  --line: rgba(9,12,11,.14);
  --gold: #c8a35e;
  --gold-light: #ead39a;
  --green: #2ca76b;
  --white: #fff;
  /* Fluid site frame: fill wide screens while keeping a small safe gutter. */
  --container: calc(100vw - clamp(32px, 4vw, 72px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: Inter, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif; -webkit-font-smoothing: antialiased; }
body.nav-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; }
.container { width: var(--container); max-width: none; margin-inline: auto; }
.skip-link { position: fixed; z-index: 200; top: 8px; left: 8px; padding: 10px 14px; color: #fff; background: #000; transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }

.site-header { position: fixed; z-index: 100; top: 0; right: 0; left: 0; color: #fff; transition: background .3s ease, border-color .3s ease; border-bottom: 1px solid rgba(255,255,255,.11); }
.site-header.scrolled { background: rgba(6,9,8,.96); backdrop-filter: blur(18px); }
.header-inner { min-height: 88px; display: flex; align-items: center; gap: 34px; }
.brand { min-height: 56px; padding: 0; display: inline-flex; flex: 0 0 192px; align-items: center; overflow: visible; background: transparent; border: 0; border-radius: 0; box-shadow: none; }
.brand img { width: 184px; height: auto; filter: drop-shadow(0 2px 8px rgba(0,0,0,.3)); }
.site-nav { margin-left: auto; display: flex; align-items: center; gap: 28px; }
.site-nav a { position: relative; padding: 34px 0 30px; font-size: .82rem; color: rgba(255,255,255,.76); letter-spacing: .04em; }
.site-nav a::after { position: absolute; right: 0; bottom: 21px; left: 0; height: 1px; content: ""; background: var(--gold); transform: scaleX(0); transition: transform .25s ease; }
.site-nav a:hover, .site-nav a.active { color: #fff; }
.site-nav a:hover::after, .site-nav a.active::after { transform: scaleX(1); }
.header-actions { display: flex; align-items: center; gap: 16px; }
.language-switch, .nav-toggle { border: 0; color: #fff; background: transparent; cursor: pointer; }
.language-switch { display: flex; gap: 7px; align-items: center; padding: 10px 2px; font-size: .82rem; font-weight: 700; }
.language-switch .sep { color: rgba(255,255,255,.34); }
.language-switch .other { color: rgba(255,255,255,.55); }
.nav-toggle { width: 42px; height: 42px; display: none; place-items: center; border: 1px solid rgba(255,255,255,.28); }
.nav-toggle span, .nav-toggle::before, .nav-toggle::after { width: 18px; height: 1px; display: block; content: ""; background: #fff; }
.nav-toggle::before { transform: translateY(-5px); }
.nav-toggle::after { transform: translateY(5px); }
.button { min-height: 52px; padding: 0 25px; display: inline-flex; align-items: center; justify-content: center; gap: 12px; border: 1px solid transparent; font-size: .82rem; font-weight: 750; letter-spacing: .04em; transition: transform .2s ease, background .2s ease; cursor: pointer; }
.button:hover { transform: translateY(-2px); }
.button-gold { color: #0a0c0b; background: var(--gold); }
.button-dark { color: #fff; background: var(--ink); }
.button-outline { color: var(--ink); border-color: var(--ink); background: transparent; }
.button-small { min-height: 44px; padding: 0 18px; }

.page-hero { position: relative; min-height: 690px; display: flex; align-items: end; overflow: hidden; color: #fff; background: #070a09; }
.page-hero::before { position: absolute; inset: 0; content: ""; background: linear-gradient(90deg, rgba(4,7,6,.96), rgba(4,7,6,.67) 48%, rgba(4,7,6,.22)), radial-gradient(circle at 78% 50%, rgba(44,167,107,.22), transparent 33%); }
.page-hero::after { position: absolute; inset: 0; content: ""; 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: 80px 80px; mask-image: linear-gradient(to right, black, transparent 82%); }
.hero-products {
  min-height: 640px;
  background: #07100d url("../images/hero-urban-lighting.png") center 54%/cover no-repeat;
}
.hero-products::before {
  background:
    linear-gradient(90deg, rgba(3,8,6,.97) 0%, rgba(3,8,6,.91) 28%, rgba(3,8,6,.64) 51%, rgba(3,8,6,.28) 76%, rgba(3,8,6,.42) 100%),
    linear-gradient(0deg, rgba(3,8,6,.48), transparent 48%);
}
.hero-products::after { opacity: .12; mask-image: linear-gradient(to right, black, rgba(0,0,0,.35) 64%, transparent); }
.hero-products .page-hero-content { padding-top: 195px; padding-bottom: 92px; }
.hero-products .page-hero-content h1 { max-width: 700px; }
.hero-products .page-hero-content .lead { max-width: 580px; }
.hero-about { background: #07100d url("../images/hero-reference-banner.jpg") center/cover no-repeat; }
.hero-projects { background: #07100d url("../images/hero-urban-lighting.png") center/cover no-repeat; }
.hero-design { background: linear-gradient(135deg, #050706, #16251e); }
.hero-training { background: linear-gradient(120deg, #050706, #101d18 58%, #26382f); }
.hero-contact { background: #050706 url("../images/hero-reference-banner.jpg") 60% 50%/cover no-repeat; }
.page-hero-content { position: relative; z-index: 2; padding: 210px 0 100px; }
.breadcrumb { margin-bottom: 32px; display: flex; gap: 9px; align-items: center; color: rgba(255,255,255,.6); font-size: .76rem; letter-spacing: .09em; text-transform: uppercase; }
.breadcrumb span:last-child { color: var(--gold-light); }
.eyebrow { margin: 0 0 20px; color: var(--gold-light); font-size: .76rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.page-hero h1 { max-width: 880px; margin: 0; font-size: clamp(4.2rem, 7vw, 7.2rem); line-height: .95; letter-spacing: -.06em; }
[data-lang="zh"] .page-hero h1 { letter-spacing: -.04em; }
.page-hero .lead { max-width: 670px; margin: 30px 0 0; color: rgba(255,255,255,.74); font-size: 1.15rem; line-height: 1.8; }
.hero-index { position: absolute; z-index: 2; right: 5vw; bottom: 76px; color: rgba(255,255,255,.08); font-size: 10rem; font-weight: 800; line-height: 1; }

.section { padding: 120px 0; }
.section-dark { color: #fff; background: var(--ink); }
.section-green { color: #fff; background: #153429; }
.section-head { margin-bottom: 58px; display: grid; grid-template-columns: minmax(0,1.25fr) minmax(280px,.75fr); gap: 80px; align-items: end; }
.section-head h2, .split-copy h2, .contact-copy h2 { max-width: 820px; margin: 0; font-size: clamp(2.9rem, 5vw, 5.4rem); line-height: 1.03; letter-spacing: -.055em; }
.section-head > p, .split-copy > p { margin: 0; color: var(--muted); font-size: 1rem; line-height: 1.8; }
.section-dark .section-head > p, .section-green .section-head > p, .section-dark .split-copy > p { color: rgba(255,255,255,.62); }
.section-dark .eyebrow { color: var(--green); }

.intro-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 90px; align-items: start; }
.intro-grid .statement { margin: 0; font-size: clamp(2.3rem, 4.1vw, 4.7rem); line-height: 1.12; letter-spacing: -.05em; }
.prose { display: grid; gap: 24px; color: var(--muted); line-height: 1.85; }
.prose p { margin: 0; }
.fact-grid { margin-top: 75px; display: grid; grid-template-columns: repeat(4,1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.fact { min-height: 190px; padding: 30px; display: flex; flex-direction: column; justify-content: space-between; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.fact strong { color: var(--green); font-size: 2.2rem; letter-spacing: -.04em; }
.fact span { max-width: 190px; color: var(--muted); font-size: .86rem; line-height: 1.55; }

.product-family-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.family-card { overflow: hidden; display: block; color: #fff; background: #101412; transition: transform .3s ease, box-shadow .3s ease; }
.family-card:hover { transform: translateY(-6px); box-shadow: 0 24px 60px rgba(0,0,0,.28); }
.family-image { aspect-ratio: 1.22; position: relative; overflow: hidden; background: #1a211e; }
.family-image img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.82) contrast(1.04); transition: transform .55s ease; }
.family-card:hover img { transform: scale(1.045); }
.family-image::after { position: absolute; inset: 0; content: ""; background: linear-gradient(0deg, rgba(3,5,4,.64), transparent 54%); }
.family-body { padding: 30px; }
.family-number { color: var(--green); font-size: .75rem; font-weight: 800; letter-spacing: .16em; }
.family-body h3 { margin: 14px 0 12px; font-size: 1.8rem; }
.family-body p { min-height: 76px; margin: 0; color: rgba(255,255,255,.58); line-height: 1.7; }
.spec-row { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 8px; }
.spec-row span { padding: 8px 10px; border: 1px solid rgba(255,255,255,.14); color: rgba(255,255,255,.72); font-size: .7rem; }
.family-link { margin-top: 28px; display: flex; justify-content: space-between; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.14); color: var(--gold-light); font-size: .78rem; font-weight: 700; }
.family-link span:last-child { transition: transform .2s ease; }
.family-card:hover .family-link span:last-child { transform: translate(3px,-3px); }

.product-detail-hero { min-height: 0; align-items: stretch; background: radial-gradient(circle at 78% 34%,rgba(44,167,107,.13),transparent 30%),#050807; }
.product-detail-hero::before { background: linear-gradient(90deg,rgba(3,7,6,.62),rgba(3,7,6,.1)); }
.product-detail-hero-grid { position:relative;z-index:2;min-height:720px;padding:170px 0 72px;display:grid;grid-template-columns:minmax(0,.86fr) minmax(460px,1.14fr);gap:48px;align-items:center; }
.product-detail-hero-copy { min-width:0; }
.hero-flood { background: #070a09 url("../images/products/flood-light.jpg") 82% 50%/min(52vw, 780px) auto no-repeat; }
.hero-linear { background: #070a09 url("../images/products/linear-light.jpg") 82% 50%/min(52vw, 780px) auto no-repeat; }
.hero-street { background: #070a09 url("../images/products/dmx-controller.jpg") 82% 50%/min(52vw, 780px) auto no-repeat; }
.hero-commercial { background: #070a09 url("../images/catalog/magic.webp") 82% 50%/min(52vw, 780px) auto no-repeat; }
.product-detail-hero h1 { max-width: 760px; font-size: clamp(3.4rem, 5.5vw, 6.1rem); }
.product-detail-hero .lead { max-width:620px; }
.hero-actions { margin-top:32px;display:flex;flex-wrap:wrap;gap:12px;align-items:center; }
.button-outline-light { color:#fff;border-color:rgba(255,255,255,.38);background:transparent; }
.product-download-link { padding:14px 2px;color:var(--gold-light);font-size:.78rem;font-weight:750;letter-spacing:.04em; }
.product-download-link:hover { color:#fff; }
.product-detail-hero-media { position:relative;aspect-ratio:1.42;min-height:500px;padding:18px;display:grid;place-items:center;overflow:hidden;border:1px solid rgba(255,255,255,.14);background:linear-gradient(145deg,#fff,#e8ece7);box-shadow:0 42px 100px rgba(0,0,0,.34); }
.product-detail-hero-media>span { position:absolute;z-index:2;top:18px;left:20px;padding:8px 10px;color:#365249;background:rgba(255,255,255,.86);font-size:.64rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;backdrop-filter:blur(8px); }
.product-detail-hero-media img { width:100%;height:100%;object-fit:contain; }
.single-ld_product .emotion-detail-visual { min-height:560px;padding:12px;background:linear-gradient(145deg,#fff,#edf0eb); }
.single-ld_product .emotion-detail-visual img { object-fit:contain; }
.product-summary { display: grid; grid-template-columns: 1.05fr .95fr; gap: 90px; align-items: start; }
.product-summary h2 { margin: 0 0 28px; font-size: clamp(2.8rem, 4.5vw, 5rem); line-height: 1.04; letter-spacing: -.05em; }
.product-summary-copy > p { margin: 0; color: var(--muted); font-size: 1.05rem; line-height: 1.85; }
.product-summary-actions { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 12px; }
.product-keyfacts { display: grid; grid-template-columns: repeat(2,1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.product-keyfact { min-height: 150px; padding: 26px; display: flex; flex-direction: column; justify-content: space-between; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.product-keyfact strong { color: var(--green); font-size: 1.65rem; letter-spacing: -.03em; }
.product-keyfact span { color: var(--muted); font-size: .8rem; line-height: 1.55; }
.variant-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.variant-card { min-height: 340px; padding: 34px; display: flex; flex-direction: column; border: 1px solid rgba(255,255,255,.14); background: #101412; }
.variant-card .variant-code { color: var(--green); font-size: .72rem; font-weight: 800; letter-spacing: .16em; }
.variant-card h3 { margin: 52px 0 14px; font-size: 1.8rem; }
.variant-card p { margin: 0; color: rgba(255,255,255,.56); line-height: 1.7; }
.variant-specs { margin-top: auto; padding-top: 30px; display: grid; gap: 10px; }
.variant-specs span { display: flex; justify-content: space-between; gap: 20px; color: rgba(255,255,255,.72); font-size: .78rem; }
.variant-specs b { color: var(--gold-light); font-weight: 700; }
.spec-matrix { display: grid; grid-template-columns: repeat(2,1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.spec-item { min-height: 120px; padding: 26px 30px; display: grid; grid-template-columns: 150px 1fr; gap: 24px; align-items: start; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.spec-item strong { color: var(--green); font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; }
.spec-item span { color: var(--muted); line-height: 1.65; }
.section-dark .spec-matrix { border-color:rgba(255,255,255,.14); }
.section-dark .spec-item { border-color:rgba(255,255,255,.14); }
.section-dark .spec-item span { color:rgba(255,255,255,.76); }
.application-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 1px; background: rgba(255,255,255,.13); }
.application-card { min-height: 250px; padding: 32px; display: flex; flex-direction: column; background: #153429; }
.application-card .num { color: var(--gold-light); font-size: .72rem; font-weight: 800; }
.application-card h3 { margin: auto 0 14px; font-size: 1.35rem; }
.application-card p { margin: 0; color: rgba(255,255,255,.6); line-height: 1.65; }
.detail-note { margin-top: 28px; color: var(--muted); font-size: .78rem; line-height: 1.65; }

.catalog-section { background: #e8e3d9; }
.catalog-toolbar { position: sticky; z-index: 8; top: 88px; margin-bottom: 34px; padding: 20px; display: grid; grid-template-columns: minmax(250px,.8fr) 1.7fr; gap: 18px; align-items: center; border: 1px solid var(--line); background: rgba(243,240,233,.94); backdrop-filter: blur(14px); }
.catalog-search { position: relative; }
.catalog-search input { width: 100%; min-height: 48px; padding: 0 44px 0 16px; border: 1px solid var(--line); outline: 0; color: var(--ink); background: #fff; }
.catalog-search input:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(44,167,107,.13); }
.catalog-search::after { position: absolute; top: 50%; right: 16px; content: "⌕"; color: var(--green); font-size: 1.2rem; transform: translateY(-50%); }
.catalog-filters { display: flex; flex-wrap: wrap; gap: 8px; justify-content: end; }
.catalog-filter { min-height: 42px; padding: 0 14px; border: 1px solid var(--line); color: #4e534f; background: transparent; cursor: pointer; font-size: .72rem; font-weight: 760; }
.catalog-filter:hover, .catalog-filter.active { border-color: var(--ink); color: #fff; background: var(--ink); }
.catalog-results { margin-bottom: 18px; display: flex; align-items: center; justify-content: space-between; gap: 20px; color: var(--muted); font-size: .78rem; }
.catalog-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.catalog-card { min-width: 0; overflow: hidden; border: 1px solid var(--line); background: var(--paper); transition: transform .25s ease, box-shadow .25s ease; }
.catalog-card[hidden] { display: none; }
.catalog-card:hover { transform: translateY(-5px); box-shadow: 0 22px 48px rgba(25,28,26,.13); }
.catalog-card-image { aspect-ratio: 1.42; overflow: hidden; background: #eeece6; }
.catalog-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease; }
.catalog-card:hover .catalog-card-image img { transform: scale(1.035); }
.catalog-card-body { min-height: 230px; padding: 22px; display: flex; flex-direction: column; }
.catalog-card-family { color: var(--green); font-size: .66rem; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
.catalog-card h3 { margin: 18px 0 8px; font-size: 1.32rem; line-height: 1.2; }
.catalog-card-model { margin: 0; color: var(--muted); font-size: .75rem; }
.catalog-card-link { margin-top: auto; padding-top: 22px; display: flex; justify-content: space-between; gap: 12px; color: #7d6437; border-top: 1px solid var(--line); font-size: .72rem; font-weight: 800; }
.catalog-card-link span:last-child { transition: transform .2s ease; }
.catalog-card:hover .catalog-card-link span:last-child { transform: translate(3px,-3px); }
.catalog-more-wrap { margin-top: 34px; display: flex; justify-content: center; }
.catalog-more[hidden] { display: none; }

.catalog-detail-main { padding-top: 88px; }
.catalog-product-hero { min-height: 700px; display: flex; align-items: center; color: #fff; background: radial-gradient(circle at 18% 30%, rgba(44,167,107,.12), transparent 32%), #080b0a; }
.catalog-product-layout { padding: 72px 0; display: grid; grid-template-columns: 1.05fr .95fr; gap: 84px; align-items: center; }
.catalog-product-media { aspect-ratio: 1.35; padding: 30px; display: grid; place-items: center; background: #ece9e2; }
.catalog-product-media img { width: 100%; height: 100%; object-fit: contain; }
.catalog-product-copy h1 { margin: 0; font-size: clamp(3rem,5vw,5.7rem); line-height: .98; letter-spacing: -.055em; }
.catalog-product-copy .lead { margin: 28px 0 0; color: rgba(255,255,255,.67); font-size: 1.02rem; line-height: 1.75; }
.button-light-outline { color: #fff; border-color: rgba(255,255,255,.38); background: transparent; }
.product-record-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 90px; align-items: start; }
.product-record-grid h2 { margin: 0 0 24px; font-size: clamp(2.6rem,4vw,4.7rem); line-height: 1.02; letter-spacing: -.05em; }
.product-record-grid article > p:last-child { color: var(--muted); line-height: 1.8; }
.product-record-facts { display: grid; grid-template-columns: repeat(2,1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.product-record-facts div { min-height: 145px; padding: 24px; display: flex; flex-direction: column; justify-content: space-between; gap: 20px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.product-record-facts span { color: var(--muted); font-size: .72rem; letter-spacing: .04em; text-transform: uppercase; }
.product-record-facts strong { color: #254c3d; font-size: 1.05rem; line-height: 1.45; }
.legacy-spec { padding: 42px; white-space: pre-line; color: rgba(255,255,255,.72); background: #101412; border: 1px solid rgba(255,255,255,.14); font-size: .92rem; line-height: 1.8; }
.catalog-pagination { padding: 42px 0; display: grid; grid-template-columns: 1fr auto 1fr; gap: 20px; }
.catalog-step { padding: 14px 0; color: var(--muted); font-size: .78rem; font-weight: 760; }
.catalog-step:hover { color: var(--green); }
.catalog-pagination > :last-child { text-align: right; }
.catalog-all { color: var(--ink); }

:where(a, button, input, textarea, select):focus-visible { outline: 2px solid var(--gold-light); outline-offset: 4px; }

.system-table { border-top: 1px solid var(--line); }
.system-row { min-height: 116px; display: grid; grid-template-columns: 80px 1.1fr 1.5fr .9fr; gap: 25px; align-items: center; border-bottom: 1px solid var(--line); }
.system-row .num { color: var(--green); font-size: .76rem; font-weight: 800; }
.system-row h3 { margin: 0; font-size: 1.4rem; }
.system-row p { margin: 0; color: var(--muted); line-height: 1.65; }
.system-row .tags { color: #4b504c; font-size: .78rem; line-height: 1.6; text-align: right; }

.feature-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: rgba(255,255,255,.12); }
.feature-card { min-height: 270px; padding: 38px; background: var(--ink); }
.feature-card .icon { width: 44px; height: 44px; margin-bottom: 56px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.24); color: var(--green); }
.feature-card h3 { margin: 0 0 15px; font-size: 1.3rem; }
.feature-card p { margin: 0; color: rgba(255,255,255,.55); line-height: 1.7; }

.process-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 1px; background: var(--line); }
.process-card { min-height: 290px; padding: 36px; display: flex; flex-direction: column; background: var(--paper); }
.process-card .num { color: var(--green); font-size: .75rem; font-weight: 800; letter-spacing: .12em; }
.process-card h3 { margin: auto 0 16px; font-size: 1.55rem; }
.process-card p { min-height: 70px; margin: 0; color: var(--muted); line-height: 1.65; }
.section-dark .process-grid { background: rgba(255,255,255,.12); }
.section-dark .process-card { background: var(--ink); }
.section-dark .process-card p { color: rgba(255,255,255,.56); }

.case-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 22px; }
.case-card { min-height: 420px; position: relative; overflow: hidden; padding: 38px; display: flex; flex-direction: column; justify-content: end; color: #fff; background: #111; }
.case-card::before { position: absolute; inset: 0; content: ""; transition: transform .55s ease; background: var(--case-image) center/cover no-repeat; }
.case-card::after { position: absolute; inset: 0; content: ""; background: linear-gradient(0deg, rgba(3,5,4,.93), rgba(3,5,4,.12) 75%); }
.case-card:hover::before { transform: scale(1.04); }
.case-card > * { position: relative; z-index: 1; }
.case-card .num { color: var(--gold-light); font-size: .76rem; }
.case-card h3 { margin: 15px 0 12px; font-size: 2rem; }
.case-card p { max-width: 540px; margin: 0; color: rgba(255,255,255,.68); line-height: 1.7; }

.split { display: grid; grid-template-columns: .92fr 1.08fr; gap: 100px; align-items: start; }
.split-copy { position: sticky; top: 130px; }
.split-copy h2 { margin-bottom: 26px; }
.detail-list { border-top: 1px solid var(--line); }
.detail-item { padding: 30px 0; display: grid; grid-template-columns: 52px 1fr; gap: 24px; border-bottom: 1px solid var(--line); }
.detail-item .num { color: var(--green); font-size: .74rem; font-weight: 800; }
.detail-item h3 { margin: 0 0 10px; font-size: 1.25rem; }
.detail-item p { margin: 0; color: var(--muted); line-height: 1.7; }
.section-dark .detail-list { border-color: rgba(255,255,255,.15); }
.section-dark .detail-item { border-color: rgba(255,255,255,.15); }
.section-dark .detail-item p { color: rgba(255,255,255,.56); }

.training-modes { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.mode-card { min-height: 330px; padding: 38px; border: 1px solid var(--line); display: flex; flex-direction: column; }
.mode-card .mode { color: var(--green); font-size: .74rem; font-weight: 800; letter-spacing: .14em; }
.mode-card h3 { margin: auto 0 16px; font-size: 1.8rem; }
.mode-card p { margin: 0; color: var(--muted); line-height: 1.7; }

.contact-layout { display: grid; grid-template-columns: .82fr 1.18fr; gap: 90px; }
.contact-copy h2 { margin-bottom: 26px; }
.contact-copy > p { color: var(--muted); line-height: 1.8; }
.contact-lines { margin-top: 42px; display: grid; gap: 14px; }
.contact-lines a, .contact-lines span { padding-bottom: 14px; border-bottom: 1px solid var(--line); line-height: 1.5; }
.contact-lines a:hover { color: var(--green); }
.inquiry-form { padding: 48px; color: #fff; background: var(--ink); }
.form-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 24px; }
.inquiry-form label { display: grid; gap: 9px; color: rgba(255,255,255,.67); font-size: .76rem; }
.inquiry-form input, .inquiry-form textarea, .inquiry-form select { width: 100%; padding: 14px 0; border: 0; border-bottom: 1px solid rgba(255,255,255,.24); outline: 0; color: #fff; background: transparent; resize: vertical; }
.inquiry-form input:focus, .inquiry-form textarea:focus, .inquiry-form select:focus { border-color: var(--gold); }
.inquiry-form textarea { min-height: 112px; }
.inquiry-form > label { margin-top: 24px; }
.form-submit { margin-top: 30px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.form-note { max-width: 360px; margin: 0; color: rgba(255,255,255,.42); font-size: .72rem; line-height: 1.55; }
.form-message { min-height: 20px; margin: 18px 0 0; font-size: .78rem; }

.cta-band { padding: 70px 0; color: #fff; background: #163c2e; }
.cta-band .container { display: flex; align-items: center; justify-content: space-between; gap: 50px; }
.cta-band h2 { max-width: 750px; margin: 0; font-size: clamp(2rem, 3.6vw, 4rem); line-height: 1.06; letter-spacing: -.045em; }

.site-footer { padding: 70px 0 28px; color: #fff; background: #050706; }
.footer-top { padding-bottom: 42px; display: grid; grid-template-columns: 1.25fr .75fr; gap: 80px; border-bottom: 1px solid rgba(255,255,255,.12); }
.footer-brand-mark { width: 226px; min-height: 70px; margin-bottom: 22px; padding: 0; display: inline-flex; align-items: center; overflow: visible; background: transparent; border: 0; border-radius: 0; }
.footer-brand img { width: 214px; height: auto; margin-bottom: 0; filter: drop-shadow(0 2px 10px rgba(0,0,0,.35)); }
.footer-brand p { max-width: 460px; margin: 0; color: rgba(255,255,255,.5); line-height: 1.7; }
.footer-links { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px 45px; align-content: start; }
.footer-links a { color: rgba(255,255,255,.64); font-size: .82rem; }
.footer-links a:hover { color: var(--gold-light); }
.footer-contact { padding: 32px 0; display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 30px; border-bottom: 1px solid rgba(255,255,255,.12); }
.footer-contact div { display: grid; gap: 8px; }
.footer-contact strong { color: rgba(255,255,255,.35); font-size: .68rem; letter-spacing: .11em; text-transform: uppercase; }
.footer-contact span, .footer-contact a { color: rgba(255,255,255,.67); font-size: .78rem; line-height: 1.55; }
.footer-bottom { padding-top: 25px; display: flex; justify-content: space-between; gap: 30px; color: rgba(255,255,255,.34); font-size: .7rem; }

@media (max-width: 1080px) {
  :root { --container: calc(100% - clamp(32px, 5vw, 48px)); }
  .site-nav { position: fixed; inset: 89px 0 auto; padding: 24px; display: grid; gap: 0; opacity: 0; pointer-events: none; color: #fff; background: rgba(5,7,6,.98); transform: translateY(-12px); transition: .25s ease; }
  .site-nav.open { opacity: 1; pointer-events: auto; transform: translateY(0); }
  .site-nav a { padding: 17px 0; border-bottom: 1px solid rgba(255,255,255,.1); font-size: 1rem; }
  .site-nav a::after { display: none; }
  .nav-toggle { display: grid; }
  .header-actions .button-small { display: none; }
  .section-head, .intro-grid, .split, .contact-layout { grid-template-columns: 1fr; gap: 48px; }
  .split-copy { position: static; }
  .fact-grid { grid-template-columns: repeat(2,1fr); }
  .product-family-grid, .training-modes { grid-template-columns: 1fr; }
  .family-card { display: grid; grid-template-columns: .8fr 1.2fr; }
  .family-image { aspect-ratio: auto; min-height: 330px; }
  .process-grid { grid-template-columns: repeat(2,1fr); }
  .footer-contact { grid-template-columns: 1fr; }
  .product-summary { grid-template-columns: 1fr; gap: 48px; }
  .product-detail-hero-grid { grid-template-columns:1fr;gap:38px;padding-top:150px; }
  .product-detail-hero-media { min-height:360px; }
  .variant-grid { grid-template-columns: 1fr; }
  .application-grid { grid-template-columns: repeat(2,1fr); }
  .catalog-toolbar { position: static; grid-template-columns: 1fr; }
  .catalog-filters { justify-content: start; }
  .catalog-grid { grid-template-columns: repeat(3,1fr); }
  .catalog-product-layout, .product-record-grid { grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 700px) {
  :root { --container: calc(100% - 28px); }
  .header-inner { min-height: 76px; gap: 12px; }
  .brand { flex-basis: 150px; }.brand img { width: 150px; }
  .site-nav { top: 77px; }
  .page-hero { min-height: 610px; }
  .page-hero-content { padding: 150px 0 72px; }
  .page-hero h1 { font-size: clamp(3.2rem, 16vw, 4.5rem); }
  .page-hero .lead { font-size: 1rem; }
  .hero-products { min-height: 570px; background-position: 58% 50%; }
  .hero-products .page-hero-content { padding-top: 145px; padding-bottom: 68px; }
  .hero-index { right: 12px; bottom: 44px; font-size: 6rem; }
  .section { padding: 82px 0; }
  .section-head { margin-bottom: 42px; }
  .section-head h2, .split-copy h2, .contact-copy h2 { font-size: 2.75rem; }
  .intro-grid .statement { font-size: 2.45rem; }
  .fact-grid { grid-template-columns: 1fr; }
  .fact { min-height: 145px; }
  .family-card { display: block; }
  .family-image { min-height: 250px; }
  .catalog-grid { grid-template-columns: repeat(2,1fr); }
  .catalog-card-body { min-height: 210px; }
  .catalog-product-hero { min-height: auto; }
  .catalog-product-layout { padding: 54px 0; }
  .product-record-facts { grid-template-columns: 1fr; }
  .system-row { padding: 24px 0; grid-template-columns: 42px 1fr; }
  .system-row p, .system-row .tags { grid-column: 2; text-align: left; }
  .feature-grid { grid-template-columns: 1fr; }
  .process-grid, .case-grid { grid-template-columns: 1fr; }
  .case-card { min-height: 360px; padding: 26px; }
  .training-modes { grid-template-columns: 1fr; }
  .contact-layout { gap: 42px; }
  .inquiry-form { padding: 28px 22px; }
  .form-grid { grid-template-columns: 1fr; }
  .form-submit { align-items: stretch; flex-direction: column; }
  .form-submit .button { width: 100%; }
  .cta-band .container { align-items: stretch; flex-direction: column; }
  .footer-top { grid-template-columns: 1fr; gap: 42px; }
  .footer-bottom { flex-direction: column; }
  .product-detail-hero { min-height:0; }
  .product-detail-hero-grid { min-height:0;padding-top:132px;padding-bottom:58px; }
  .product-detail-hero-media { min-height:250px;padding:20px; }
  .product-detail-hero h1 { font-size:clamp(2.8rem,13vw,4.2rem); }
  .product-keyfacts, .spec-matrix, .application-grid { grid-template-columns: 1fr; }
  .spec-item { grid-template-columns: 1fr; gap: 10px; }
}

@media (max-width: 480px) {
  .catalog-grid { grid-template-columns: 1fr; }
  .catalog-filter { flex: 1 1 calc(50% - 8px); }
  .catalog-product-media { padding: 14px; }
  .catalog-pagination { grid-template-columns: 1fr; text-align: center; }
  .catalog-pagination > :last-child { text-align: center; }
}

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