:root {
  --ink: #07101f;
  --ink-2: #0c1728;
  --ink-3: #15243a;
  --paper: #f4f6f8;
  --white: #ffffff;
  --text: #111827;
  --muted: #667085;
  --line: #d9dee7;
  --yellow: #f5de2b;
  --yellow-2: #ffea4d;
  --blue: #5b78e8;
  --radius: 22px;
  --shadow: 0 24px 70px rgba(7, 16, 31, .12);
  --shell: min(1180px, calc(100% - 40px));
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: var(--paper);
  font-family: Inter, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
body.nav-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--yellow); outline-offset: 4px; }
.shell { width: var(--shell); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; left: 16px; top: 12px; z-index: 999; transform: translateY(-160%); padding: 10px 16px; background: var(--yellow); color: var(--ink); font-weight: 800; border-radius: 8px; }
.skip-link:focus { transform: translateY(0); }

.site-header { position: fixed; inset: 0 0 auto; z-index: 50; color: white; transition: background .25s ease, box-shadow .25s ease; }
.site-header.is-scrolled, .site-header.is-solid { background: rgba(7, 16, 31, .94); backdrop-filter: blur(18px); box-shadow: 0 1px 0 rgba(255,255,255,.1); }
.header-inner { min-height: 88px; display: flex; align-items: center; gap: 32px; }
.brand { width: 142px; flex: 0 0 auto; }
.brand img { width: 100%; height: auto; }
.site-nav { margin-left: auto; display: flex; align-items: center; gap: 30px; }
.site-nav a { position: relative; padding: 30px 0; color: rgba(255,255,255,.72); font-size: .92rem; font-weight: 700; letter-spacing: .04em; transition: color .2s ease; }
.site-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 21px; height: 2px; background: var(--yellow); transition: right .2s ease; }
.site-nav a:hover, .site-nav a.is-active { color: white; }
.site-nav a:hover::after, .site-nav a.is-active::after { right: 0; }
.button { min-height: 50px; display: inline-flex; align-items: center; justify-content: center; gap: 12px; padding: 12px 24px; border: 1px solid var(--yellow); border-radius: 999px; background: var(--yellow); color: var(--ink); font-weight: 800; letter-spacing: .02em; cursor: pointer; transition: transform .2s ease, background .2s ease, box-shadow .2s ease; }
.button:hover { transform: translateY(-2px); background: var(--yellow-2); box-shadow: 0 12px 26px rgba(245,222,43,.2); }
.button-small { min-height: 44px; padding: 9px 18px; font-size: .86rem; }
.button svg { width: 17px; fill: none; stroke: currentColor; stroke-width: 2; }
.menu-toggle { display: none; width: 46px; height: 46px; border: 1px solid rgba(255,255,255,.2); border-radius: 50%; background: transparent; cursor: pointer; }
.menu-toggle span:not(.sr-only) { display: block; width: 18px; height: 2px; margin: 4px auto; background: white; transition: transform .2s ease; }

.hero { position: relative; min-height: 860px; display: grid; align-items: center; overflow: hidden; background: radial-gradient(circle at 75% 30%, #25345e 0%, var(--ink-2) 34%, var(--ink) 68%); color: white; }
.hero::after { content: ""; position: absolute; inset: auto 0 0; height: 190px; background: linear-gradient(transparent, rgba(0,0,0,.28)); pointer-events: none; }
.hero-grid, .page-hero-grid { position: absolute; inset: 0; opacity: .13; background-image: linear-gradient(rgba(255,255,255,.2) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.2) 1px, transparent 1px); background-size: 90px 90px; mask-image: linear-gradient(to right, #000, transparent 72%); }
.hero-glow { position: absolute; border-radius: 50%; filter: blur(2px); pointer-events: none; }
.hero-glow-one { width: 540px; height: 540px; right: 9%; top: 12%; background: rgba(87,108,220,.15); box-shadow: 0 0 160px rgba(80,97,211,.35); }
.hero-glow-two { width: 280px; height: 280px; left: -130px; bottom: 90px; background: rgba(245,222,43,.08); box-shadow: 0 0 120px rgba(245,222,43,.2); }
.hero-layout { position: relative; z-index: 2; display: grid; grid-template-columns: 1.03fr .97fr; align-items: center; gap: 54px; padding: 138px 0 95px; }
.eyebrow { margin: 0 0 18px; display: flex; align-items: center; gap: 12px; color: rgba(255,255,255,.65); font-size: .72rem; font-weight: 800; letter-spacing: .18em; }
.eyebrow span { display: block; width: 34px; height: 2px; background: var(--yellow); }
.eyebrow.dark { color: #697586; }
.hero h1 { margin: 0; max-width: 740px; font-size: clamp(3.35rem, 6.5vw, 6.5rem); line-height: .98; letter-spacing: -.06em; font-weight: 900; }
.hero h1 em { color: var(--yellow); font-style: normal; }
.hero-lead { max-width: 600px; margin: 30px 0; color: rgba(255,255,255,.72); font-size: 1.08rem; line-height: 1.9; }
.hero-actions { display: flex; align-items: center; gap: 28px; }
.text-link { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; color: var(--ink); font-weight: 800; border-bottom: 1px solid currentColor; transition: gap .2s ease, color .2s ease; }
.text-link:hover { gap: 16px; color: #425bd1; }
.text-link.light { color: white; }
.hero .text-link { color: white; }
.hero-proof { margin-top: 56px; display: flex; gap: 36px; }
.hero-proof div { display: grid; padding-right: 36px; border-right: 1px solid rgba(255,255,255,.15); }
.hero-proof div:last-child { border: 0; padding-right: 0; }
.hero-proof strong { color: var(--yellow); font-size: 1.55rem; line-height: 1; letter-spacing: -.04em; }
.hero-proof span { margin-top: 8px; color: rgba(255,255,255,.55); font-size: .78rem; }

.hero-product { position: relative; min-height: 580px; display: grid; place-items: center; }
.product-stage { position: relative; width: min(480px, 88%); aspect-ratio: 1; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.14); border-radius: 50%; background: radial-gradient(circle, rgba(255,255,255,.1), rgba(255,255,255,.015) 60%, transparent 61%); box-shadow: inset 0 0 80px rgba(255,255,255,.03), 0 50px 90px rgba(0,0,0,.3); }
.product-stage::after { content: ""; position: absolute; left: 22%; right: 22%; bottom: 8%; height: 25px; border-radius: 50%; background: rgba(0,0,0,.42); filter: blur(16px); }
.product-stage img { position: relative; z-index: 2; width: 78%; height: 78%; object-fit: contain; filter: drop-shadow(0 25px 25px rgba(0,0,0,.38)); animation: productFloat 5.5s ease-in-out infinite; }
.stage-kicker { position: absolute; top: 12%; left: 50%; transform: translateX(-50%); margin: 0; color: rgba(255,255,255,.42); font-size: .62rem; font-weight: 800; letter-spacing: .25em; white-space: nowrap; }
.orbit { position: absolute; border: 1px solid rgba(255,255,255,.12); border-radius: 50%; }
.orbit-one { width: 540px; height: 540px; }
.orbit-two { width: 620px; height: 360px; transform: rotate(-18deg); }
.stage-label { position: absolute; z-index: 4; display: flex; align-items: center; gap: 9px; padding: 9px 13px; border: 1px solid rgba(255,255,255,.18); border-radius: 999px; background: rgba(7,16,31,.7); backdrop-filter: blur(12px); color: rgba(255,255,255,.65); font-size: .7rem; }
.stage-label span { color: var(--yellow); font-weight: 900; }
.stage-label-top { right: -4%; top: 26%; }
.stage-label-bottom { left: -3%; bottom: 24%; }
.hero-scroll { position: absolute; z-index: 3; left: 28px; bottom: 35px; display: flex; align-items: center; gap: 12px; color: rgba(255,255,255,.36); font-size: .6rem; font-weight: 700; letter-spacing: .18em; transform: rotate(-90deg); transform-origin: left center; }
.hero-scroll span { width: 45px; height: 1px; background: rgba(255,255,255,.35); }
@keyframes productFloat { 0%,100% { transform: translateY(0) rotate(-1deg); } 50% { transform: translateY(-14px) rotate(1deg); } }

.marquee { overflow: hidden; border-top: 1px solid rgba(255,255,255,.08); border-bottom: 1px solid rgba(255,255,255,.08); background: var(--yellow); color: var(--ink); }
.marquee-track { width: max-content; display: flex; align-items: center; gap: 28px; padding: 15px 0; animation: marquee 24s linear infinite; }
.marquee span { font-size: .78rem; font-weight: 900; letter-spacing: .16em; }
.marquee i { width: 7px; height: 7px; background: var(--ink); transform: rotate(45deg); }
@keyframes marquee { to { transform: translateX(-50%); } }

.section { padding: 120px 0; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; margin-bottom: 52px; }
.section-heading h2, .advantages-intro h2, .contact-layout h2 { margin: 0; font-size: clamp(2.35rem, 5vw, 4.45rem); line-height: 1.07; letter-spacing: -.055em; }
.section-heading > p { max-width: 470px; margin: 0 0 8px; color: var(--muted); }
.section-categories { background: var(--paper); }
.category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.category-card { position: relative; min-height: 420px; display: flex; overflow: hidden; border-radius: var(--radius); background: var(--white); box-shadow: 0 1px 0 rgba(7,16,31,.08); isolation: isolate; transition: transform .3s ease, box-shadow .3s ease; }
.category-card-wide { grid-column: span 2; }
.category-card::before { content: ""; position: absolute; inset: auto 0 0; height: 65%; background: linear-gradient(transparent, rgba(7,16,31,.075)); z-index: -1; }
.category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.category-copy { position: relative; z-index: 2; display: flex; flex-direction: column; align-items: flex-start; padding: 30px; }
.category-index { color: #98a2b3; font-family: ui-monospace, monospace; font-size: .72rem; }
.category-copy > p { margin: auto 0 2px; color: #697586; font-size: .68rem; font-weight: 900; letter-spacing: .18em; }
.category-copy h3 { margin: 0; font-size: 1.7rem; letter-spacing: -.04em; }
.category-action { margin-top: 13px; font-size: .82rem; font-weight: 800; }
.category-action b { display: inline-block; margin-left: 6px; transition: transform .2s ease; }
.category-card:hover .category-action b { transform: translateX(5px); }
.category-card img { position: absolute; z-index: 1; right: -1%; bottom: -3%; width: 68%; height: 88%; object-fit: contain; transition: transform .4s cubic-bezier(.2,.7,.2,1); }
.category-card:not(.category-card-wide) img { width: 82%; height: 66%; right: -12%; }
.category-card:hover img { transform: scale(1.045) translateY(-4px); }

.section-featured { background: var(--ink); color: white; }
.section-heading.light > p { color: rgba(255,255,255,.6); }
.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.product-card { position: relative; display: flex; flex-direction: column; min-height: 100%; overflow: hidden; border: 1px solid rgba(7,16,31,.1); border-radius: 18px; background: white; color: var(--text); transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.section-featured .product-card { border-color: rgba(255,255,255,.1); background: var(--ink-2); color: white; }
.product-card:hover { transform: translateY(-5px); border-color: rgba(245,222,43,.65); box-shadow: 0 24px 60px rgba(0,0,0,.18); }
.product-card-media { position: relative; min-height: 300px; display: grid; place-items: center; overflow: hidden; background: linear-gradient(145deg, #eef1f5, #fff); }
.section-featured .product-card-media { background: radial-gradient(circle at 50% 50%, #273552, #111c2e 65%); }
.product-card-media::after { content: ""; position: absolute; left: 28%; right: 28%; bottom: 14%; height: 14px; border-radius: 50%; background: rgba(0,0,0,.2); filter: blur(10px); }
.product-card[hidden] { display: none; }
.product-card-media img { position: relative; z-index: 1; width: 76%; height: 250px; object-fit: contain; transition: transform .35s ease; }
.product-card:hover .product-card-media img { transform: scale(1.06) rotate(-1deg); }
.product-card-badge { position: absolute; z-index: 2; left: 16px; top: 16px; padding: 5px 10px; border-radius: 999px; background: var(--yellow); color: var(--ink); font-size: .66rem; font-weight: 900; }
.product-card-body { flex: 1; display: flex; flex-direction: column; padding: 22px; }
.product-card-kicker { margin: 0 0 7px; color: #697586; font-size: .68rem; font-weight: 900; letter-spacing: .1em; }
.section-featured .product-card-kicker { color: rgba(255,255,255,.48); }
.product-card h3 { margin: 0; font-size: 1.35rem; letter-spacing: -.025em; }
.product-card-spec { margin: 8px 0 20px; color: #667085; font-size: .88rem; }
.section-featured .product-card-spec { color: rgba(255,255,255,.58); }
.product-card-link { margin-top: auto; display: flex; justify-content: space-between; align-items: center; color: inherit; font-size: .78rem; font-weight: 900; }
.product-card-link span { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--yellow); color: var(--ink); transition: transform .2s ease; }
.product-card:hover .product-card-link span { transform: rotate(-35deg); }

.section-advantages { background: white; }
.advantages-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; }
.advantages-intro { position: sticky; top: 130px; align-self: start; }
.advantages-intro > p:last-child { max-width: 430px; margin-top: 28px; color: var(--muted); }
.advantage-list { border-top: 1px solid var(--line); }
.advantage-item { display: grid; grid-template-columns: 72px 1fr; gap: 20px; padding: 34px 0; border-bottom: 1px solid var(--line); }
.advantage-item > span { color: #98a2b3; font-family: ui-monospace, monospace; font-size: .76rem; }
.advantage-item h3 { margin: 0 0 10px; font-size: 1.35rem; }
.advantage-item p { max-width: 580px; margin: 0; color: var(--muted); }

.contact-band { position: relative; overflow: hidden; padding: 105px 0; background: var(--blue); color: white; }
.contact-band::before { content: ""; position: absolute; width: 420px; height: 420px; right: -100px; top: -170px; border: 80px solid rgba(255,255,255,.08); border-radius: 50%; }
.contact-lines { position: absolute; inset: 0; background: linear-gradient(120deg, transparent 50%, rgba(255,255,255,.08) 50.2%, transparent 50.4%); background-size: 90px 90px; opacity: .45; }
.contact-layout { position: relative; display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 50px; }
.contact-action { min-width: 290px; padding: 28px; border: 1px solid rgba(255,255,255,.2); border-radius: 18px; background: rgba(7,16,31,.18); backdrop-filter: blur(10px); }
.contact-action p, .contact-action span { display: block; margin: 0; color: rgba(255,255,255,.65); font-size: .8rem; }
.contact-action a { display: block; margin: 4px 0; color: var(--yellow); font-size: 1.65rem; font-weight: 900; letter-spacing: -.03em; }

.site-footer { padding: 70px 0 26px; background: #050b15; color: white; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 50px; padding-bottom: 55px; }
.footer-brand img { width: 145px; }
.footer-brand p { margin-top: 18px; color: rgba(255,255,255,.48); }
.footer-links, .footer-contact { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.footer-links p, .footer-contact p { margin: 0 0 10px; color: white; font-weight: 800; }
.footer-links a, .footer-contact span { color: rgba(255,255,255,.48); font-size: .88rem; }
.footer-links a:hover { color: var(--yellow); }
.footer-contact a { color: var(--yellow); font-weight: 800; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 25px; border-top: 1px solid rgba(255,255,255,.1); color: rgba(255,255,255,.38); font-size: .76rem; }
.footer-bottom p { margin: 0; }
.compact-footer { padding-top: 26px; }
.compact-footer a { color: var(--yellow); }

.page-hero { position: relative; min-height: 440px; display: flex; align-items: end; overflow: hidden; background: radial-gradient(circle at 80% 10%, #26365f, var(--ink) 58%); color: white; }
.page-hero::after { content: "PRODUCTS"; position: absolute; right: -25px; bottom: -80px; color: rgba(255,255,255,.035); font-size: clamp(8rem, 20vw, 18rem); font-weight: 950; letter-spacing: -.08em; }
.page-hero-content { position: relative; z-index: 2; padding-bottom: 72px; }
.page-hero h1 { margin: 0; font-size: clamp(3.2rem, 8vw, 6.5rem); line-height: 1; letter-spacing: -.065em; }
.page-hero p:last-child { max-width: 580px; margin: 20px 0 0; color: rgba(255,255,255,.62); }
.catalog-section { padding: 64px 0 110px; min-height: 70vh; }
.catalog-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.filter-tabs { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-button { min-height: 44px; padding: 9px 17px; border: 1px solid var(--line); border-radius: 999px; background: white; color: #475467; font-size: .82rem; font-weight: 800; cursor: pointer; transition: background .2s ease, color .2s ease, border-color .2s ease; }
.filter-button:hover, .filter-button.is-active { border-color: var(--ink); background: var(--ink); color: white; }
.catalog-search { width: min(320px, 100%); min-height: 48px; display: flex; align-items: center; gap: 10px; padding: 0 16px; border: 1px solid var(--line); border-radius: 999px; background: white; }
.catalog-search svg { width: 18px; fill: none; stroke: #667085; stroke-width: 2; }
.catalog-search input { width: 100%; border: 0; outline: 0; background: transparent; color: var(--text); }
.catalog-meta { display: flex; justify-content: space-between; margin: 32px 0 22px; color: #667085; font-size: .82rem; }
.catalog-meta p { margin: 0; }
.catalog-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
.catalog-grid .product-card-media { min-height: 285px; }
.empty-state { padding: 80px 20px; text-align: center; }
.empty-state h2 { margin-bottom: 8px; }
.empty-state p { color: var(--muted); }

.product-detail-main { padding-top: 88px; background: white; }
.product-detail { display: grid; grid-template-columns: .9fr 1.1fr; gap: 70px; padding: 65px 0 90px; }
.product-visual { position: sticky; top: 120px; align-self: start; min-height: 590px; display: grid; place-items: center; overflow: hidden; border-radius: 24px; background: radial-gradient(circle at 50% 42%, #27385c, var(--ink) 65%); }
.product-visual::before { content: ""; position: absolute; inset: 8%; border: 1px solid rgba(255,255,255,.1); border-radius: 50%; }
.product-visual::after { content: "J-SEVEN"; position: absolute; bottom: 15px; color: rgba(255,255,255,.04); font-size: 5rem; font-weight: 950; letter-spacing: -.08em; }
.product-visual img { position: relative; z-index: 2; width: 78%; height: 500px; object-fit: contain; filter: drop-shadow(0 30px 32px rgba(0,0,0,.4)); }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 40px; color: #667085; font-size: .78rem; }
.breadcrumbs a:hover { color: var(--blue); }
.product-info .eyebrow { margin-bottom: 12px; }
.product-info h1 { margin: 0 0 12px; font-size: clamp(2.8rem, 6vw, 5.2rem); line-height: 1; letter-spacing: -.06em; }
.product-descriptor { margin: 0 0 30px; color: #667085; font-size: 1rem; }
.spec-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 10px; margin: 0 0 35px; }
.spec-card { padding: 16px; border: 1px solid var(--line); border-radius: 14px; background: #f8fafc; }
.spec-card span { display: block; color: #98a2b3; font-size: .68rem; font-weight: 800; letter-spacing: .08em; }
.spec-card strong { display: block; margin-top: 3px; font-size: .95rem; }
.product-copy-block { padding: 28px 0; border-top: 1px solid var(--line); }
.product-copy-block h2 { margin: 0 0 10px; font-size: 1.2rem; }
.product-copy-block p { margin: 0; color: #536072; }
.detail-actions { display: flex; gap: 12px; padding-top: 16px; }
.button-secondary { border-color: var(--ink); background: transparent; color: var(--ink); }
.related-section { padding: 90px 0 110px; background: var(--paper); }
.related-grid { grid-template-columns: repeat(3, 1fr); }
.loading-state { min-height: 620px; display: grid; place-items: center; color: var(--muted); }
.not-found { padding: 140px 0; text-align: center; }
.not-found h1 { font-size: 3rem; }

[data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity .65s ease, transform .65s cubic-bezier(.2,.7,.2,1); }
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1000px) {
  :root { --shell: min(100% - 32px, 900px); }
  .header-inner { min-height: 76px; }
  .site-nav { position: fixed; inset: 76px 0 auto; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 18px 24px 28px; background: rgba(7,16,31,.98); border-top: 1px solid rgba(255,255,255,.1); }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 14px 0; font-size: 1rem; }
  .site-nav a::after { bottom: 7px; }
  .menu-toggle { display: block; margin-left: auto; }
  .header-cta { display: none; }
  .hero { min-height: auto; }
  .hero-layout { grid-template-columns: 1fr; padding: 145px 0 70px; }
  .hero-copy { position: relative; z-index: 4; }
  .hero-product { min-height: 460px; margin-top: -45px; opacity: .92; }
  .product-stage { width: min(440px, 92%); }
  .orbit-one { width: 470px; height: 470px; }
  .orbit-two { width: 520px; }
  .hero-scroll { display: none; }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .category-card-wide { grid-column: span 1; }
  .category-card img, .category-card:not(.category-card-wide) img { width: 78%; height: 68%; right: -8%; }
  .advantages-layout { grid-template-columns: 1fr; gap: 50px; }
  .advantages-intro { position: static; }
  .product-detail { grid-template-columns: 1fr; }
  .product-visual { position: relative; top: auto; min-height: 500px; }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
  .footer-contact { grid-column: 2; }
}

@media (max-width: 760px) {
  :root { --shell: min(100% - 28px, 680px); --radius: 18px; }
  .brand { width: 122px; }
  .hero h1 { font-size: clamp(3rem, 15vw, 4.6rem); }
  .hero-lead { font-size: 1rem; }
  .hero-actions { align-items: stretch; flex-direction: column; gap: 12px; }
  .hero-actions .button, .hero-actions .text-link { align-self: flex-start; }
  .hero-proof { gap: 18px; margin-top: 42px; }
  .hero-proof div { padding-right: 18px; }
  .hero-proof span { max-width: 72px; line-height: 1.35; }
  .hero-product { min-height: 370px; margin-top: -30px; }
  .product-stage { width: 350px; max-width: 94%; }
  .orbit-one { width: 380px; height: 380px; }
  .orbit-two { width: 420px; height: 260px; }
  .stage-label-top { right: 0; }
  .stage-label-bottom { left: 0; }
  .section { padding: 82px 0; }
  .section-heading { align-items: flex-start; flex-direction: column; margin-bottom: 34px; }
  .section-heading h2, .advantages-intro h2, .contact-layout h2 { font-size: clamp(2.45rem, 12vw, 3.5rem); }
  .category-grid, .product-grid, .catalog-grid, .related-grid { grid-template-columns: 1fr; }
  .category-card { min-height: 360px; }
  .category-card img, .category-card:not(.category-card-wide) img { width: 74%; height: 72%; }
  .product-card-media { min-height: 270px; }
  .contact-layout { grid-template-columns: 1fr; }
  .contact-action { min-width: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .footer-brand { grid-column: span 2; }
  .footer-contact { grid-column: auto; }
  .footer-bottom { align-items: flex-start; flex-direction: column; }
  .page-hero { min-height: 380px; }
  .catalog-toolbar { align-items: stretch; flex-direction: column; }
  .catalog-search { width: 100%; }
  .filter-tabs { flex-wrap: nowrap; margin-inline: -14px; padding-inline: 14px; overflow-x: auto; scrollbar-width: none; }
  .filter-button { flex: 0 0 auto; }
  .product-detail { padding-top: 30px; gap: 42px; }
  .product-visual { min-height: 420px; }
  .product-visual img { height: 350px; }
  .product-info h1 { font-size: 3rem; }
  .spec-grid { grid-template-columns: 1fr; }
  .detail-actions { flex-direction: column; }
}

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