:root {
  --navy: #0b2942;
  --navy-deep: #061b2d;
  --orange: #f28c18;
  --orange-bright: #ff981c;
  --ink: #14222e;
  --steel: #697985;
  --line: #d7dee3;
  --mist: #eef3f6;
  --paper: #f7f8f8;
  --white: #ffffff;
  --max: 1320px;
  --display: "Arial Narrow", "Roboto Condensed", "DIN Condensed", Arial, sans-serif;
  --body: Inter, Arial, "Noto Sans SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--white); color: var(--ink); font-family: var(--body); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
img { display: block; max-width: 100%; }
section { scroll-margin-top: 84px; }

.siteHeader {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 84px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
  padding: 0 32px;
  border-bottom: 1px solid #d9e0e5;
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 4px 20px rgba(6, 27, 45, .04);
  backdrop-filter: blur(14px);
}

.brand { display: inline-flex; align-items: center; gap: 13px; min-width: 310px; }
.brandMark { position: relative; width: 60px; height: 48px; display: grid; place-items: center; border: 2px solid var(--navy); color: var(--navy); overflow: hidden; }
.brandMark::before { content: ""; position: absolute; width: 44px; height: 44px; border: 6px solid var(--orange); border-radius: 50%; top: 15px; left: 6px; opacity: .95; }
.brandMark b { position: relative; z-index: 1; font-family: var(--display); font-size: 25px; font-style: italic; letter-spacing: -2px; }
.brandMark i { position: absolute; left: 0; right: 0; bottom: 0; height: 7px; background: var(--navy); }
.brandText { display: flex; flex-direction: column; gap: 3px; }
.brandText strong { font-family: var(--display); color: var(--navy); font-size: 19px; line-height: 1; letter-spacing: .035em; }
.brandText small { font-size: 11px; color: #54636e; letter-spacing: .06em; }

.mainNav { display: flex; justify-content: center; align-items: center; gap: clamp(20px, 2.5vw, 44px); }
.mainNav a { position: relative; font-family: var(--display); font-size: 15px; font-weight: 700; color: #203241; white-space: nowrap; }
.mainNav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -14px; height: 2px; background: var(--orange); transition: right .2s ease; }
.mainNav a:hover::after, .mainNav a:focus-visible::after { right: 0; }
.headerActions { display: flex; align-items: center; gap: 16px; }
.langButton { border: 0; background: transparent; color: #50606c; cursor: pointer; padding: 12px 3px; font-size: 13px; }
.langButton b { color: var(--navy); }
.langButton span { margin: 0 8px; color: #a7b1b8; }
.headerQuote { display: inline-flex; align-items: center; gap: 16px; padding: 13px 17px; border: 1px solid var(--orange); color: #d96f00; font-family: var(--display); font-weight: 700; font-size: 14px; transition: .2s ease; }
.headerQuote:hover { background: var(--orange); color: #fff; }
.menuButton { display: none; width: 42px; height: 42px; border: 1px solid var(--line); background: #fff; padding: 10px; cursor: pointer; }
.menuButton span { display: block; height: 2px; background: var(--navy); margin: 4px 0; transition: .2s ease; }

.hero {
  position: relative;
  min-height: 630px;
  display: flex;
  align-items: stretch;
  overflow: hidden;
  background: var(--navy-deep);
  color: #fff;
  border-bottom: 4px solid var(--orange);
}
.heroImage { position: absolute; inset: 0 0 0 37%; background: linear-gradient(90deg, #06243c 0%, rgba(6,36,60,.3) 29%, rgba(6,36,60,.03) 70%), url("../assets/original-site/track-stockpile.jpg") center 58%/cover no-repeat; }
.hero::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(90deg, rgba(5,27,46,.99) 0%, rgba(6,37,62,.96) 35%, rgba(4,21,35,.26) 58%, rgba(4,16,26,.1) 100%); }
.heroGrid { position: absolute; z-index: 1; inset: 0 0 0 48%; opacity: .16; background-image: linear-gradient(rgba(255,255,255,.25) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.25) 1px, transparent 1px); background-size: 50px 50px; mask-image: linear-gradient(90deg, transparent, #000); }
.heroCopy { position: relative; z-index: 3; width: min(760px, 56%); display: flex; flex-direction: column; justify-content: center; padding: 74px max(46px, calc((100vw - var(--max)) / 2)); }
.eyebrow { margin: 0 0 18px; color: var(--navy); font-family: var(--display); font-size: 13px; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }
.eyebrow.orange { color: var(--orange-bright); }
.hero h1 { max-width: 720px; margin: 0; font-family: var(--display); font-size: clamp(66px, 6.8vw, 108px); font-weight: 800; letter-spacing: -.045em; line-height: .87; text-transform: uppercase; }
.hero h1.zh { font-size: clamp(58px, 5.4vw, 78px); line-height: .98; letter-spacing: -.025em; text-transform: none; }
.heroCn { margin: 26px 0 0; font-size: clamp(19px, 2vw, 28px); font-weight: 700; letter-spacing: .035em; }
.heroSub { margin: 13px 0 0; color: #bdc9d1; font-size: 16px; letter-spacing: .02em; text-transform: uppercase; }
.heroCtas { display: flex; gap: 14px; margin-top: 31px; }
.button { min-height: 56px; display: inline-flex; align-items: center; justify-content: space-between; gap: 24px; padding: 0 25px; border: 1px solid transparent; font-family: var(--display); font-size: 15px; font-weight: 800; cursor: pointer; transition: transform .18s ease, background .18s ease, color .18s ease; }
.button:hover { transform: translateY(-2px); }
.button.primary { background: var(--orange); color: #fff; }
.button.primary:hover { background: #ff9d2e; }
.button.outline { border-color: rgba(255,255,255,.8); color: #fff; }
.button.outline:hover { background: #fff; color: var(--navy); }
.scrollCue { width: fit-content; display: flex; align-items: center; gap: 12px; margin-top: 28px; color: var(--orange); font-family: var(--display); font-size: 13px; font-weight: 700; }
.scrollCue span { width: 32px; height: 32px; display: grid; place-items: center; border: 1px solid var(--orange); border-radius: 50%; }
.techLabel { position: absolute; z-index: 3; right: max(36px, calc((100vw - var(--max)) / 2)); bottom: 34px; width: 245px; padding: 12px 16px 12px 55px; border: 1px solid rgba(255,255,255,.46); background: rgba(5,24,40,.68); backdrop-filter: blur(4px); }
.techLabel::before { content: ""; position: absolute; left: -90px; top: -48px; width: 136px; height: 68px; border-left: 1px solid rgba(255,255,255,.6); border-top: 1px solid rgba(255,255,255,.6); transform: skewX(-36deg); }
.techLabel span, .techLabel b { display: block; font-family: ui-monospace, monospace; font-size: 10px; letter-spacing: .08em; }
.techLabel span { color: var(--orange); margin-bottom: 5px; }

.metrics { min-height: 170px; display: grid; grid-template-columns: repeat(4, 1fr); padding: 0 max(28px, calc((100vw - var(--max)) / 2)); background: #fff; }
.metric { display: flex; align-items: center; gap: 21px; padding: 30px clamp(20px, 2.5vw, 40px); border-right: 1px solid var(--line); }
.metric:first-child { border-left: 1px solid var(--line); }
.metricIcon { width: 52px; height: 52px; flex: 0 0 52px; display: grid; place-items: center; border: 2px solid var(--navy); color: var(--orange); font-family: var(--display); font-size: 16px; font-weight: 900; }
.metric > div { display: flex; flex-direction: column; min-width: 0; }
.metric strong { color: var(--navy); font-family: var(--display); font-size: clamp(28px, 2.8vw, 44px); line-height: 1; white-space: nowrap; letter-spacing: -.025em; }
.metric small { margin-top: 7px; color: #7a858d; font-size: 12px; text-transform: uppercase; letter-spacing: .08em; }

.section { position: relative; padding: 112px 24px; }
.sectionInner { width: min(var(--max), 100%); margin: 0 auto; }
.section h2, .contactSection h2 { margin: 0; font-family: var(--display); font-size: clamp(44px, 5.5vw, 78px); font-weight: 800; line-height: .97; letter-spacing: -.035em; text-transform: uppercase; }

.aboutSection { background: #fff; }
.aboutIntro { display: grid; grid-template-columns: minmax(0, 1fr) minmax(360px, .75fr); gap: 100px; align-items: end; }
.aboutBody { padding-bottom: 7px; }
.aboutBody > p { margin: 0 0 25px; color: #596a76; font-size: 16px; line-height: 1.9; }
.textLink { display: inline-flex; align-items: center; gap: 14px; color: var(--navy); font-family: var(--display); font-weight: 800; border-bottom: 2px solid var(--orange); padding-bottom: 6px; }
.aboutMediaGrid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 50px; align-items: stretch; margin-top: 68px; }
.aboutPhoto { position: relative; min-height: 500px; margin: 0; overflow: hidden; background: var(--mist); }
.aboutPhoto img { width: 100%; height: 100%; object-fit: cover; }
.aboutPhoto::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(6,27,45,.6), transparent 43%); }
.aboutPhoto figcaption { position: absolute; z-index: 2; left: 34px; bottom: 30px; display: flex; align-items: baseline; gap: 14px; color: #fff; }
.aboutPhoto figcaption b { font-family: var(--display); font-size: 46px; }
.aboutPhoto figcaption span { font-size: 13px; letter-spacing: .07em; text-transform: uppercase; }
.featureGrid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.feature { padding: 33px 30px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.feature > span { color: var(--orange); font-family: var(--display); font-size: 13px; font-weight: 800; }
.feature h3 { margin: 34px 0 12px; color: var(--navy); font-family: var(--display); font-size: 23px; text-transform: uppercase; }
.feature p { margin: 0; color: #687983; font-size: 13px; line-height: 1.7; }

.productsSection { background: var(--navy-deep); color: #fff; overflow: hidden; }
.productsSection::before { content: ""; position: absolute; inset: 0; opacity: .05; background-image: linear-gradient(#fff 1px, transparent 1px), linear-gradient(90deg, #fff 1px, transparent 1px); background-size: 80px 80px; }
.sectionTop { position: relative; display: grid; grid-template-columns: 1fr minmax(320px, .55fr); gap: 90px; align-items: end; }
.sectionTop > p { margin: 0; color: #aebac3; font-size: 15px; line-height: 1.8; }
.productGrid { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 62px; }
.productCard { overflow: hidden; border: 1px solid rgba(255,255,255,.16); background: #0d304d; transition: transform .22s ease, border-color .22s ease; }
.productCard:hover { transform: translateY(-5px); border-color: rgba(242,140,24,.8); }
.productPhoto { position: relative; aspect-ratio: 16/10; overflow: hidden; background: #dfe6ea; }
.productPhoto::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(3,18,30,.52), transparent 45%); }
.productPhoto img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.productCard:hover .productPhoto img { transform: scale(1.045); }
.productPhoto > span { position: absolute; z-index: 2; left: 20px; top: 18px; padding: 7px 10px; background: var(--orange); color: #fff; font-family: var(--display); font-weight: 800; }
.productContent { padding: 27px 26px 29px; }
.productSpec { margin: 0 0 15px !important; color: var(--orange) !important; font-family: ui-monospace, monospace; font-size: 10px !important; letter-spacing: .07em; }
.productContent h3 { min-height: 58px; margin: 0; font-family: var(--display); font-size: 25px; line-height: 1.1; text-transform: uppercase; }
.productContent > p { min-height: 70px; margin: 15px 0 22px; color: #aebdc7; font-size: 13px; line-height: 1.7; }
.productContent > a { display: flex; justify-content: space-between; align-items: center; padding-top: 16px; border-top: 1px solid rgba(255,255,255,.14); color: #fff; font-family: var(--display); font-size: 13px; font-weight: 800; text-transform: uppercase; }
.productContent > a span { color: var(--orange); }

.brandsSection { background: #f5f7f8; }
.brandsIntro { display: grid; grid-template-columns: 1fr .7fr; gap: 100px; align-items: end; }
.brandsIntro > p { margin: 0; color: #5e6e79; line-height: 1.8; }
.brandGrid { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 58px; border-top: 1px solid #cfd8de; border-left: 1px solid #cfd8de; }
.brandCell { min-height: 112px; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 8px; border-right: 1px solid #cfd8de; border-bottom: 1px solid #cfd8de; background: rgba(255,255,255,.7); }
.brandCell strong { color: var(--navy); font-family: var(--display); font-size: 21px; letter-spacing: .04em; }
.brandCell span { color: #7a8790; font-size: 12px; }
.brandNote { margin-top: 20px; color: #7b8790; font-size: 10px; line-height: 1.6; }

.applicationsSection { background: #fff; }
.applicationsSection h2 { max-width: 900px; }
.applicationGrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 54px; }
.applicationCard { position: relative; min-height: 420px; overflow: hidden; background: var(--navy); }
.applicationCard::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(4,24,40,.9), transparent 60%); }
.applicationCard img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.applicationCard:hover img { transform: scale(1.05); }
.applicationCard > div { position: absolute; z-index: 2; left: 25px; right: 25px; bottom: 25px; color: #fff; }
.applicationCard span { color: var(--orange); font-family: var(--display); font-weight: 800; }
.applicationCard h3 { margin: 9px 0 0; font-family: var(--display); font-size: 24px; text-transform: uppercase; line-height: 1.1; }

.manufacturingSection { overflow: hidden; background: var(--navy-deep); color: #fff; }
.manufacturingBackdrop { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(4,25,42,.98), rgba(4,25,42,.78)), url("../assets/original-site/assembly-worker.jpg") center 40%/cover; opacity: .45; }
.manufacturingIntro { position: relative; display: grid; grid-template-columns: 1fr .65fr; gap: 90px; align-items: end; }
.manufacturingIntro > p { margin: 0; color: #b5c1c9; line-height: 1.8; }
.processGrid { position: relative; display: grid; grid-template-columns: repeat(6, 1fr); margin-top: 58px; border-top: 1px solid rgba(255,255,255,.22); border-left: 1px solid rgba(255,255,255,.22); }
.processCard { min-height: 220px; padding: 24px 20px; border-right: 1px solid rgba(255,255,255,.22); border-bottom: 1px solid rgba(255,255,255,.22); background: rgba(4,25,42,.55); backdrop-filter: blur(7px); }
.processCard > span { color: var(--orange); font-family: var(--display); font-weight: 800; }
.processCard h3 { margin: 42px 0 12px; font-family: var(--display); font-size: 19px; text-transform: uppercase; line-height: 1.1; }
.processCard p { margin: 0; color: #9eafb9; font-size: 11px; line-height: 1.55; }
.manufacturingPhotos { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 30px; }
.manufacturingPhotos img { width: 100%; height: 225px; object-fit: cover; border: 1px solid rgba(255,255,255,.2); }

.selectionSection { background: #eef2f4; }
.selectionGrid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 86px; align-items: start; }
.selectionLead { max-width: 590px; margin: 28px 0 0; color: #5e6d77; font-size: 16px; line-height: 1.85; }
.steps { margin-top: 44px; border-top: 1px solid #ccd5db; }
.step { display: grid; grid-template-columns: 52px 1fr; gap: 22px; padding: 22px 0; border-bottom: 1px solid #ccd5db; }
.step > span { color: var(--orange); font-family: var(--display); font-weight: 800; }
.step h3 { margin: 0 0 6px; color: var(--navy); font-family: var(--display); font-size: 20px; text-transform: uppercase; }
.step p { margin: 0; color: #73818a; font-size: 13px; }
.quoteForm { padding: 40px 42px; background: #fff; border-top: 5px solid var(--orange); box-shadow: 0 20px 60px rgba(6,27,45,.12); }
.formHead { padding-bottom: 24px; border-bottom: 1px solid var(--line); margin-bottom: 24px; }
.formHead > span { color: var(--orange); font-family: ui-monospace, monospace; font-size: 11px; font-weight: 800; letter-spacing: .1em; }
.formHead h3 { margin: 12px 0 8px; color: var(--navy); font-family: var(--display); font-size: 32px; text-transform: uppercase; }
.formHead p { margin: 0; color: #74818a; font-size: 13px; }
.quoteForm label { display: flex; flex-direction: column; gap: 8px; margin-top: 17px; }
.quoteForm label > span { color: #4f5e69; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; }
.quoteForm input, .quoteForm textarea { width: 100%; border: 1px solid #cdd6dc; border-radius: 0; background: #fbfcfc; color: var(--ink); padding: 13px 14px; outline: none; transition: border-color .18s ease, box-shadow .18s ease; }
.quoteForm input:focus, .quoteForm textarea:focus { border-color: var(--orange); box-shadow: 0 0 0 3px rgba(242,140,24,.12); }
.formRow { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.formButton { width: 100%; margin-top: 23px; border: 0; }
.privacyNote { display: block; margin-top: 12px; color: #89939a; font-size: 10px; line-height: 1.5; }

.contactSection { padding: 105px 24px; background: var(--navy); color: #fff; }
.contactGrid { display: grid; grid-template-columns: 1.1fr .9fr auto; gap: 70px; align-items: start; }
.contactCopy h2 { font-size: clamp(42px, 4.8vw, 70px); }
.contactCopy > p:last-child { max-width: 620px; margin: 28px 0 0; color: #b6c2ca; line-height: 1.8; }
.contactDetails { border-top: 1px solid rgba(255,255,255,.22); }
.contactDetails a { display: flex; flex-direction: column; gap: 7px; padding: 18px 0; border-bottom: 1px solid rgba(255,255,255,.22); }
.contactDetails a span { color: var(--orange); font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: .12em; }
.contactDetails a strong { font-family: var(--display); font-size: 17px; word-break: break-word; }
.qrCards { display: flex; gap: 12px; }
.qrCards figure { margin: 0; padding: 10px; background: #fff; color: var(--navy); }
.qrCards img { width: 118px; height: 118px; object-fit: cover; }
.qrCards figcaption { margin-top: 7px; text-align: center; font-family: var(--display); font-size: 11px; font-weight: 800; }

.siteFooter { padding: 70px 24px 24px; background: #061827; color: #fff; }
.footerGrid { display: grid; grid-template-columns: 1.5fr .7fr 1fr; gap: 80px; }
.brand.light .brandMark { border-color: #fff; color: #fff; }
.brand.light .brandMark i { background: #fff; }
.brand.light .brandText strong { color: #fff; }
.brand.light .brandText small { color: #9fafba; }
.footerBrand p { max-width: 470px; color: #8fa0ab; font-size: 13px; line-height: 1.8; margin: 25px 0 0; }
.footerGrid > div:not(.footerBrand) { display: flex; flex-direction: column; gap: 10px; }
.footerGrid h3 { margin: 0 0 10px; color: var(--orange); font-family: var(--display); font-size: 14px; text-transform: uppercase; }
.footerGrid a { color: #aebbc4; font-size: 12px; line-height: 1.5; }
.footerGrid a:hover { color: #fff; }
.footerBottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 58px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.13); color: #738692; font-size: 10px; letter-spacing: .06em; }

.floatingWhatsapp { position: fixed; z-index: 45; right: 20px; bottom: 20px; height: 50px; display: flex; align-items: center; gap: 9px; padding: 5px 16px 5px 6px; border-radius: 28px; background: #25d366; color: #fff; box-shadow: 0 10px 30px rgba(0,0,0,.25); }
.floatingWhatsapp span { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 50%; background: rgba(255,255,255,.18); font-size: 11px; font-weight: 900; }
.floatingWhatsapp b { font-size: 12px; }

:focus-visible { outline: 3px solid rgba(242,140,24,.55); outline-offset: 3px; }

@media (max-width: 1180px) {
  .siteHeader { padding: 0 20px; gap: 18px; }
  .brand { min-width: 245px; }
  .brandText small { display: none; }
  .mainNav { gap: 20px; }
  .headerQuote { display: none; }
  .heroCopy { width: 66%; }
  .metric { padding: 25px 18px; gap: 14px; }
  .metricIcon { width: 42px; height: 42px; flex-basis: 42px; }
  .metric strong { font-size: 30px; }
  .aboutIntro, .brandsIntro { gap: 60px; }
  .processGrid { grid-template-columns: repeat(3, 1fr); }
  .contactGrid { grid-template-columns: 1fr 1fr; }
  .qrCards { grid-column: 1 / -1; }
}

@media (max-width: 920px) {
  .siteHeader { grid-template-columns: 1fr auto; }
  .mainNav { position: absolute; left: 0; right: 0; top: 84px; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 15px 24px 25px; background: #fff; border-bottom: 1px solid var(--line); box-shadow: 0 12px 30px rgba(6,27,45,.12); }
  .mainNav.open { display: flex; }
  .mainNav a { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .mainNav a::after { display: none; }
  .menuButton { display: block; }
  .langButton { display: none; }
  .hero { min-height: 650px; }
  .heroImage { inset: 0; opacity: .65; }
  .hero::after { background: linear-gradient(90deg, rgba(5,27,46,.98) 0%, rgba(6,37,62,.88) 63%, rgba(4,21,35,.45) 100%); }
  .heroCopy { width: 82%; padding-left: 32px; padding-right: 32px; }
  .techLabel { display: none; }
  .metrics { grid-template-columns: repeat(2, 1fr); padding: 0 24px; }
  .metric:nth-child(3) { border-left: 1px solid var(--line); }
  .section { padding: 84px 24px; }
  .aboutIntro, .sectionTop, .brandsIntro, .manufacturingIntro, .selectionGrid { grid-template-columns: 1fr; gap: 30px; }
  .aboutMediaGrid { grid-template-columns: 1fr; }
  .aboutPhoto { min-height: 380px; }
  .productGrid { grid-template-columns: repeat(2, 1fr); }
  .brandGrid { grid-template-columns: repeat(3, 1fr); }
  .applicationGrid { grid-template-columns: repeat(2, 1fr); }
  .contactGrid { grid-template-columns: 1fr; gap: 42px; }
  .qrCards { grid-column: auto; }
  .footerGrid { grid-template-columns: 1.4fr 1fr; }
  .footerGrid > div:last-child { grid-column: 1 / -1; }
}

@media (max-width: 620px) {
  .siteHeader { height: 72px; padding: 0 14px; }
  .brand { min-width: 0; gap: 9px; }
  .brandMark { width: 47px; height: 40px; }
  .brandMark b { font-size: 20px; }
  .brandText strong { font-size: 14px; }
  .mainNav { top: 72px; }
  .headerActions { gap: 8px; }
  .hero { min-height: calc(100vh - 72px); }
  .heroCopy { width: 100%; padding: 64px 20px 46px; justify-content: flex-end; }
  .hero h1 { font-size: clamp(53px, 17vw, 76px); }
  .hero h1.zh { font-size: clamp(46px, 13vw, 64px); }
  .heroCn { font-size: 18px; }
  .heroSub { font-size: 12px; line-height: 1.6; }
  .heroCtas { flex-direction: column; align-items: stretch; }
  .button { width: 100%; }
  .metrics { grid-template-columns: 1fr; padding: 0 16px; }
  .metric, .metric:first-child, .metric:nth-child(3) { border-left: 1px solid var(--line); }
  .metric { min-height: 112px; }
  .section, .contactSection { padding: 70px 18px; }
  .section h2, .contactSection h2 { font-size: 43px; }
  .aboutMediaGrid { margin-top: 42px; }
  .aboutPhoto { min-height: 280px; }
  .aboutPhoto figcaption { left: 20px; bottom: 18px; }
  .aboutPhoto figcaption b { font-size: 34px; }
  .featureGrid, .productGrid, .brandGrid, .applicationGrid, .processGrid, .manufacturingPhotos { grid-template-columns: 1fr; }
  .feature { padding: 25px 22px; }
  .productContent h3 { min-height: auto; }
  .productContent > p { min-height: auto; }
  .brandGrid { grid-template-columns: repeat(2, 1fr); }
  .brandCell { min-height: 90px; }
  .applicationCard { min-height: 360px; }
  .processGrid { border-top: 0; }
  .processCard { min-height: 160px; }
  .processCard h3 { margin-top: 25px; }
  .manufacturingPhotos img { height: 190px; }
  .quoteForm { padding: 29px 20px; }
  .formRow { grid-template-columns: 1fr; gap: 0; }
  .qrCards { flex-wrap: wrap; }
  .qrCards img { width: 105px; height: 105px; }
  .footerGrid { grid-template-columns: 1fr; gap: 35px; }
  .footerGrid > div:last-child { grid-column: auto; }
  .footerBottom { flex-direction: column; }
  .floatingWhatsapp b { display: none; }
  .floatingWhatsapp { padding-right: 6px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}