:root {
  --navy-950: #071d31;
  --navy-900: #0c2944;
  --navy-800: #123453;
  --navy-700: #1a466c;
  --teal-600: #168e9e;
  --teal-500: #1b9cab;
  --teal-100: #dff3f4;
  --ink: #13283a;
  --muted: #607080;
  --line: #dbe4e9;
  --surface: #f4f7f8;
  --surface-blue: #edf5f7;
  --white: #fff;
  --shadow: 0 24px 70px rgba(7, 29, 49, 0.12);
  --shell: min(1240px, calc(100vw - 64px));
  --header-height: 86px;
  --ease: cubic-bezier(.22, .78, .28, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
body.nav-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { color: inherit; }
h1, h2, h3, h4, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.18; letter-spacing: -0.035em; }
p { color: var(--muted); }

.shell { width: var(--shell); margin: 0 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: 1000;
  transform: translateY(-150%);
  padding: 10px 18px;
  background: var(--teal-600);
  color: var(--white);
  transition: transform .2s ease;
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-height);
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid rgba(18, 52, 83, .08);
  backdrop-filter: blur(16px);
  transition: box-shadow .3s ease, height .3s ease;
}
.site-header.is-scrolled { box-shadow: 0 12px 40px rgba(7, 29, 49, .08); }
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 34px; }
.brand { display: block; width: 238px; flex: 0 0 auto; }
.brand img { width: 100%; height: 52px; object-fit: contain; object-position: left center; }
.main-nav { display: flex; align-items: center; gap: clamp(24px, 2.3vw, 44px); font-size: 15px; font-weight: 600; }
.main-nav > a { position: relative; padding: 14px 0; color: #294256; transition: color .25s ease; }
.main-nav > a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 7px;
  height: 2px;
  background: var(--teal-500);
  transition: right .3s var(--ease);
}
.main-nav > a:hover,
body[data-page="home"] .main-nav a[href="index.html"],
body[data-page="products"] .main-nav a[href="products.html"],
body[data-page="product-detail"] .main-nav a[href="products.html"],
body[data-page="about"] .main-nav a[href="about.html"],
body[data-page="contact"] .main-nav a[href="contact.html"] { color: var(--teal-600); }
.main-nav > a:hover::after,
body[data-page="home"] .main-nav a[href="index.html"]::after,
body[data-page="products"] .main-nav a[href="products.html"]::after,
body[data-page="product-detail"] .main-nav a[href="products.html"]::after,
body[data-page="about"] .main-nav a[href="about.html"]::after,
body[data-page="contact"] .main-nav a[href="contact.html"]::after { right: 0; }
.main-nav .nav-cta { padding: 12px 23px; color: var(--white); background: var(--navy-800); border-radius: 2px; transition: background .25s ease, transform .25s ease; }
.main-nav .nav-cta:hover { color: var(--white); background: var(--teal-600); transform: translateY(-2px); }
.nav-toggle { display: none; width: 46px; height: 46px; border: 0; background: transparent; cursor: pointer; padding: 10px; }
.nav-toggle > span:not(.sr-only) { display: block; height: 2px; margin: 6px 0; background: var(--navy-800); transition: transform .3s ease, opacity .3s ease; }

.hero {
  position: relative;
  min-height: max(740px, 100svh);
  overflow: hidden;
  padding-top: var(--header-height);
  background: var(--navy-950);
  color: var(--white);
}
.hero-grid,
.page-hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(90deg, transparent, #000 25%, #000 85%, transparent);
}
.hero::before {
  content: "";
  position: absolute;
  width: 850px;
  height: 850px;
  right: -300px;
  top: -260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(27, 156, 171, .32), rgba(27, 156, 171, 0) 66%);
}
.hero-fiber { position: absolute; width: 780px; height: 780px; border: 1px solid rgba(75, 206, 217, .16); border-radius: 50%; pointer-events: none; }
.hero-fiber::before, .hero-fiber::after { content: ""; position: absolute; inset: 54px; border: inherit; border-radius: inherit; }
.hero-fiber::after { inset: 124px; }
.hero-fiber-a { right: -380px; bottom: -480px; }
.hero-fiber-b { left: -620px; top: 160px; opacity: .35; }
.hero-slide { position: absolute; inset: var(--header-height) 0 0; opacity: 0; visibility: hidden; transform: translateX(34px); transition: opacity .8s var(--ease), transform .9s var(--ease), visibility 0s .9s; }
.hero-slide.is-active { opacity: 1; visibility: visible; transform: translateX(0); transition-delay: 0s; }
.hero-layout { height: 100%; min-height: 650px; display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: 74px; padding-bottom: 86px; }
.hero-copy { position: relative; z-index: 3; min-width: 0; max-width: 650px; }
.eyebrow { margin-bottom: 19px; color: var(--teal-600); font-size: 12px; line-height: 1.3; font-weight: 800; letter-spacing: .2em; text-transform: uppercase; }
.eyebrow.light { color: #55d4df; }
.hero-copy h1, .hero-copy h2 { margin: 0 0 28px; color: var(--white); font-size: clamp(54px, 6.1vw, 86px); font-weight: 650; }
.hero-copy h1 span, .hero-copy h2 span { color: #55d4df; }
.hero-lead { max-width: 600px; margin-bottom: 38px; color: rgba(255,255,255,.72); font-size: clamp(17px, 1.35vw, 20px); line-height: 1.85; overflow-wrap: anywhere; word-break: break-word; }
.button-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.button { display: inline-flex; min-height: 52px; padding: 13px 26px; align-items: center; justify-content: center; border: 1px solid transparent; border-radius: 2px; font-size: 15px; font-weight: 700; line-height: 1.2; cursor: pointer; transition: transform .25s ease, background .25s ease, border-color .25s ease, color .25s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--white); background: var(--teal-600); }
.button-primary:hover { background: #20a6b6; }
.button-ghost { color: var(--white); border-color: rgba(255,255,255,.42); background: rgba(255,255,255,.05); }
.button-ghost:hover { border-color: var(--white); background: rgba(255,255,255,.1); }
.button-outline { color: var(--navy-800); border-color: var(--navy-800); background: transparent; }
.button-outline:hover { color: var(--white); background: var(--navy-800); }
.button-outline-light { color: var(--white); border-color: rgba(255,255,255,.4); }
.button-outline-light:hover { border-color: var(--teal-500); background: var(--teal-600); }
.hero-product { position: relative; z-index: 2; display: grid; place-items: center; min-height: 560px; }
.product-stage { position: relative; z-index: 2; width: min(480px, 38vw); aspect-ratio: 1 / 1; padding: 52px; background: rgba(255,255,255,.98); box-shadow: 0 36px 110px rgba(0,0,0,.32); }
.product-stage::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 5px; background: linear-gradient(90deg, var(--teal-500), #68d4dc); }
.product-stage img { width: 100%; height: 100%; object-fit: contain; }
.stage-index { position: absolute; top: 24px; left: 28px; color: var(--teal-600); font-size: 11px; font-weight: 800; letter-spacing: .18em; }
.stage-caption { position: absolute; right: -38px; bottom: 42px; min-width: 230px; padding: 20px 24px; color: var(--white); background: var(--navy-800); box-shadow: var(--shadow); }
.stage-caption strong, .stage-caption span { display: block; }
.stage-caption strong { margin-bottom: 3px; font-size: 18px; }
.stage-caption span { color: rgba(255,255,255,.64); font-size: 12px; }
.orbit { position: absolute; z-index: 1; border: 1px solid rgba(85, 212, 223, .24); border-radius: 50%; animation: orbitSpin 22s linear infinite; }
.orbit::after { content: ""; position: absolute; width: 9px; height: 9px; top: 11%; left: 16%; border-radius: 50%; background: #55d4df; box-shadow: 0 0 28px #55d4df; }
.orbit-one { width: 540px; height: 540px; }
.orbit-two { width: 640px; height: 640px; animation-direction: reverse; animation-duration: 30s; }
.hero-controls { position: absolute; z-index: 6; left: 50%; bottom: 34px; transform: translateX(-50%); display: flex; gap: 34px; }
.hero-dot { position: relative; display: flex; gap: 10px; align-items: center; padding: 10px 0 14px; border: 0; border-bottom: 2px solid rgba(255,255,255,.16); color: rgba(255,255,255,.44); background: transparent; cursor: pointer; font-size: 12px; letter-spacing: .08em; transition: color .25s ease, border-color .25s ease; }
.hero-dot span { color: #55d4df; font-weight: 800; }
.hero-dot.is-active { color: var(--white); border-color: #55d4df; }
.scroll-cue { position: absolute; z-index: 6; right: 34px; bottom: 40px; display: flex; flex-direction: column; align-items: center; gap: 10px; color: rgba(255,255,255,.45); font-size: 10px; letter-spacing: .12em; writing-mode: vertical-rl; }
.scroll-cue i { display: block; width: 1px; height: 48px; background: linear-gradient(#55d4df, transparent); animation: scrollCue 1.8s ease-in-out infinite; }

.section { padding: 112px 0; }
.section-heading { margin-bottom: 52px; }
.section-heading h2 { margin-bottom: 0; color: var(--navy-900); font-size: clamp(38px, 4vw, 58px); font-weight: 650; }
.split-heading { display: grid; grid-template-columns: 1.15fr .85fr; gap: 80px; align-items: end; }
.split-heading > p { max-width: 520px; margin: 0 0 6px; font-size: 17px; line-height: 1.9; }
.section-heading.compact { display: flex; align-items: end; justify-content: space-between; gap: 30px; }
.section-heading.compact h2 { font-size: clamp(36px, 3.2vw, 50px); }
.line-link { display: inline-flex; align-items: center; gap: 14px; padding-bottom: 5px; border-bottom: 1px solid var(--line); color: var(--navy-800); font-size: 14px; font-weight: 700; }
.line-link span, .text-link i { color: var(--teal-600); font-style: normal; transition: transform .25s ease; }
.line-link:hover span, .category-card:hover .text-link i { transform: translateX(5px); }

.intro-section { background: var(--white); }
.category-grid { display: grid; grid-template-columns: 1.35fr .8fr; grid-template-rows: repeat(2, 340px); gap: 24px; }
.category-card { position: relative; overflow: hidden; padding: 44px; background: var(--surface-blue); isolation: isolate; }
.category-card-large { grid-row: 1 / span 2; }
.category-card::after { content: ""; position: absolute; width: 360px; height: 360px; right: -150px; bottom: -180px; border-radius: 50%; border: 1px solid rgba(22, 142, 158, .25); box-shadow: 0 0 0 48px rgba(22, 142, 158, .06), 0 0 0 96px rgba(22, 142, 158, .035); z-index: -1; }
.category-card.dark { background: var(--navy-900); }
.category-card.dark::after { border-color: rgba(85,212,223,.35); box-shadow: 0 0 0 48px rgba(85,212,223,.06), 0 0 0 96px rgba(85,212,223,.03); }
.category-copy { position: relative; z-index: 3; }
.category-number { display: block; margin-bottom: 18px; color: var(--teal-600); font-size: 12px; font-weight: 800; }
.category-copy > p { margin-bottom: 4px; color: var(--teal-600); font-size: 10px; font-weight: 800; letter-spacing: .18em; }
.category-copy h3 { margin-bottom: 16px; color: var(--navy-900); font-size: clamp(25px, 2.4vw, 38px); }
.category-card.dark h3 { color: var(--white); }
.category-card.dark .category-copy > p, .category-card.dark .category-number { color: #55d4df; }
.text-link { display: inline-flex; align-items: center; gap: 12px; color: var(--muted); font-size: 13px; font-weight: 700; }
.category-card.dark .text-link { color: rgba(255,255,255,.64); }
.category-card > img { position: absolute; z-index: 2; object-fit: contain; transition: transform .65s var(--ease); mix-blend-mode: multiply; }
.category-card-large > img { width: 69%; height: 62%; right: 3%; bottom: 2%; }
.category-card-tall > img { width: 48%; height: 70%; right: 3%; bottom: 0; }
.category-card.dark > img { mix-blend-mode: normal; background: white; border-radius: 50%; padding: 10px; }
.category-card:hover > img { transform: translateY(-8px) scale(1.035); }

.featured-section { background: var(--surface); }
.product-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 22px; }
.product-card { position: relative; min-width: 0; background: var(--white); border: 1px solid transparent; transition: transform .35s var(--ease), box-shadow .35s ease, border-color .35s ease; }
.product-card:hover { transform: translateY(-7px); border-color: rgba(22,142,158,.22); box-shadow: 0 20px 55px rgba(7,29,49,.1); }
.product-card-image { position: relative; display: grid; place-items: center; aspect-ratio: 1 / .88; overflow: hidden; padding: 24px; background: #fbfcfc; }
.product-card-image::after { content: "查看详情 →"; position: absolute; right: 14px; bottom: 14px; padding: 7px 11px; color: var(--white); background: var(--navy-800); font-size: 10px; font-weight: 700; opacity: 0; transform: translateY(7px); transition: opacity .25s ease, transform .25s ease; }
.product-card:hover .product-card-image::after { opacity: 1; transform: translateY(0); }
.product-card-image img { width: 100%; height: 100%; object-fit: contain; transition: transform .5s var(--ease); }
.product-card:hover img { transform: scale(1.04); }
.product-card-body { padding: 20px 21px 22px; border-top: 1px solid #eef2f4; }
.product-card-category { display: block; margin-bottom: 5px; color: var(--teal-600); font-size: 10px; font-weight: 800; letter-spacing: .08em; }
.product-card h3 { margin: 0; color: var(--navy-900); font-size: 18px; letter-spacing: -.01em; }

.experience-section { position: relative; overflow: hidden; color: var(--white); background: var(--navy-950); }
.experience-section::before { content: ""; position: absolute; width: 760px; height: 760px; right: -310px; top: -270px; border-radius: 50%; border: 1px solid rgba(85,212,223,.16); box-shadow: 0 0 0 80px rgba(85,212,223,.03), 0 0 0 160px rgba(85,212,223,.02); }
.experience-layout { position: relative; display: grid; grid-template-columns: .82fr 1.18fr; gap: 70px 92px; align-items: center; }
.experience-visual { position: relative; min-height: 460px; background: linear-gradient(145deg, #f5fafb, #fff); box-shadow: 0 35px 90px rgba(0,0,0,.25); }
.experience-logo { position: absolute; inset: 50px; display: grid; place-items: center; overflow: hidden; }
.experience-logo img { width: 100%; height: 100%; object-fit: contain; }
.experience-caption { position: absolute; left: -18px; bottom: 25px; padding: 12px 18px; color: var(--white); background: var(--teal-600); font-size: 11px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.experience-copy h2 { margin-bottom: 25px; color: var(--white); font-size: clamp(40px, 4vw, 58px); }
.experience-copy > p:not(.eyebrow) { margin-bottom: 32px; color: rgba(255,255,255,.66); font-size: 17px; line-height: 1.95; }
.stats { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(255,255,255,.13); }
.stat { padding: 38px 24px 0; border-right: 1px solid rgba(255,255,255,.13); }
.stat:first-child { padding-left: 0; }
.stat:last-child { border-right: 0; }
.stat strong { display: block; color: var(--white); font-family: Arial, sans-serif; font-size: clamp(46px, 5vw, 72px); line-height: 1; letter-spacing: -.055em; }
.stat strong span { color: #55d4df; }
.stat sup { margin-left: 6px; font-size: 17px; font-weight: 500; vertical-align: top; }
.stat p { margin: 13px 0 0; color: rgba(255,255,255,.57); font-size: 13px; }

.capability-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.capability-card { min-height: 300px; padding: 38px 30px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: color .35s ease, background .35s ease, transform .35s var(--ease); }
.capability-card span { color: var(--teal-600); font-size: 12px; font-weight: 800; }
.capability-card h3 { margin: 86px 0 18px; color: var(--navy-900); font-size: 25px; }
.capability-card p { margin: 0; font-size: 14px; line-height: 1.9; }
.capability-card:hover { color: var(--white); background: var(--navy-800); transform: translateY(-5px); }
.capability-card:hover h3 { color: var(--white); }
.capability-card:hover p { color: rgba(255,255,255,.66); }

.contact-band { padding: 78px 0; color: var(--white); background: linear-gradient(110deg, var(--navy-800), #0b2a45 72%); }
.contact-band-inner { display: grid; grid-template-columns: 1.15fr .85fr; gap: 80px; align-items: center; }
.contact-band h2 { margin: 0; color: var(--white); font-size: clamp(36px, 4vw, 54px); }
.contact-band-inner > div:last-child { display: flex; align-items: center; justify-content: flex-end; gap: 32px; }
.contact-band p { max-width: 340px; margin: 0; color: rgba(255,255,255,.65); font-size: 14px; }
.contact-band .button { flex: 0 0 auto; }

.site-footer { padding-top: 74px; color: rgba(255,255,255,.68); background: #061727; }
.footer-main { display: grid; grid-template-columns: 1.55fr .72fr 1fr 1.25fr; gap: 62px; padding-bottom: 62px; }
.footer-brand img { width: 248px; height: 58px; padding: 4px 8px; object-fit: contain; background: var(--white); }
.footer-brand p { max-width: 330px; margin: 22px 0 0; color: rgba(255,255,255,.48); }
.footer-main h3 { margin: 0 0 22px; color: var(--white); font-size: 14px; letter-spacing: .02em; }
.footer-main > div:not(.footer-brand) { display: flex; flex-direction: column; align-items: flex-start; }
.footer-main a { margin-bottom: 10px; font-size: 13px; transition: color .2s ease; }
.footer-main a:hover { color: #55d4df; }
.footer-main p { margin: 0; color: rgba(255,255,255,.48); font-size: 13px; line-height: 1.9; }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; padding: 23px 0 28px; border-top: 1px solid rgba(255,255,255,.1); font-size: 11px; letter-spacing: .04em; }
.footer-bottom a { color: #55d4df; }

.page-hero { position: relative; min-height: 460px; overflow: hidden; padding-top: var(--header-height); color: var(--white); background: linear-gradient(120deg, var(--navy-950), var(--navy-800)); }
.page-hero::after { content: ""; position: absolute; width: 520px; height: 520px; right: -130px; bottom: -330px; border: 1px solid rgba(85,212,223,.26); border-radius: 50%; box-shadow: 0 0 0 70px rgba(85,212,223,.04), 0 0 0 140px rgba(85,212,223,.025); }
.page-hero-inner { position: relative; z-index: 2; display: flex; min-height: 374px; flex-direction: column; justify-content: center; }
.page-hero h1 { max-width: 840px; margin-bottom: 20px; color: var(--white); font-size: clamp(54px, 6vw, 82px); }
.page-hero p:not(.eyebrow) { max-width: 650px; margin: 0; color: rgba(255,255,255,.66); font-size: 17px; }
.page-hero-about { min-height: 590px; }
.page-hero-about .page-hero-inner { min-height: 504px; }
.page-hero-contact { min-height: 510px; }
.page-hero-contact .page-hero-inner { min-height: 424px; }

.catalog-section { min-height: 700px; }
.catalog-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 30px; margin-bottom: 28px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.filters { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-button { padding: 10px 14px; border: 1px solid transparent; color: var(--muted); background: transparent; cursor: pointer; font-size: 13px; font-weight: 700; transition: color .2s ease, background .2s ease, border-color .2s ease; }
.filter-button span { margin-left: 5px; color: #97a5af; font-size: 10px; }
.filter-button:hover { color: var(--navy-800); border-color: var(--line); }
.filter-button.is-active { color: var(--white); background: var(--navy-800); }
.filter-button.is-active span { color: rgba(255,255,255,.58); }
.product-search { position: relative; flex: 0 0 260px; }
.product-search input { width: 100%; height: 46px; padding: 0 42px 0 15px; border: 1px solid var(--line); border-radius: 0; outline: none; color: var(--ink); background: var(--white); font-size: 13px; transition: border-color .2s ease, box-shadow .2s ease; }
.product-search input:focus { border-color: var(--teal-500); box-shadow: 0 0 0 3px rgba(27,156,171,.1); }
.product-search i { position: absolute; right: 16px; top: 50%; transform: translateY(-50%); color: var(--teal-600); font-style: normal; font-size: 21px; }
.catalog-summary { margin-bottom: 22px; }
.catalog-summary p { margin: 0; font-size: 13px; }
.catalog-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.catalog-grid .product-card { border-color: #e8edef; }
.empty-state { padding: 90px 20px; text-align: center; background: var(--surface); }
.empty-state h2 { color: var(--navy-800); }

.breadcrumb-wrap { padding-top: var(--header-height); background: var(--surface); border-bottom: 1px solid var(--line); }
.breadcrumb { display: flex; align-items: center; gap: 10px; min-height: 60px; color: #7a8994; font-size: 12px; }
.breadcrumb a:hover { color: var(--teal-600); }
.breadcrumb em { color: var(--navy-800); font-style: normal; }
.detail-section { padding-top: 76px; }
.detail-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 76px; align-items: center; }
.detail-image-wrap { position: relative; aspect-ratio: 1 / .88; display: grid; place-items: center; padding: 54px; background: var(--surface); }
.detail-image-wrap::after { content: ""; position: absolute; right: 0; bottom: 0; width: 34%; height: 5px; background: var(--teal-600); }
.detail-image-wrap img { width: 100%; height: 100%; object-fit: contain; }
.detail-label { position: absolute; left: 25px; top: 24px; z-index: 2; padding: 7px 10px; color: var(--teal-600); background: var(--white); font-size: 10px; font-weight: 800; letter-spacing: .05em; }
.detail-copy h1 { margin-bottom: 20px; color: var(--navy-900); font-family: Arial, "Microsoft YaHei", sans-serif; font-size: clamp(48px, 5vw, 72px); }
.detail-summary { margin-bottom: 26px; font-size: 17px; line-height: 1.95; }
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 0 0 34px; padding: 0; list-style: none; }
.feature-list li { position: relative; padding: 13px 12px 13px 30px; color: var(--navy-800); background: var(--surface-blue); font-size: 12px; font-weight: 700; }
.feature-list li::before { content: ""; position: absolute; left: 13px; top: 18px; width: 7px; height: 7px; border-radius: 50%; background: var(--teal-500); }
.detail-note { margin: 25px 0 0; padding-top: 18px; border-top: 1px solid var(--line); font-size: 11px; }
.specs-section { padding-top: 20px; background: var(--surface); }
.spec-table { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.spec-row { display: grid; grid-template-columns: 145px 1fr; min-height: 66px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--white); }
.spec-row span, .spec-row strong { display: flex; align-items: center; padding: 14px 18px; font-size: 13px; }
.spec-row span { color: var(--muted); background: #f7f9fa; }
.spec-row strong { color: var(--navy-800); font-weight: 600; }
.related-section { background: var(--white); }

.story-layout { display: grid; grid-template-columns: .82fr 1.18fr; gap: 120px; }
.story-title h2 { color: var(--navy-900); font-size: clamp(42px, 4.2vw, 62px); }
.story-copy p { font-size: 16px; line-height: 2; }
.story-copy .lead-paragraph { color: var(--navy-800); font-size: 23px; line-height: 1.75; }
.about-stats { padding: 54px 0; background: var(--navy-950); }
.stats-wide { grid-column: auto; }
.values-section { background: var(--surface); }
.values-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.value-card { min-height: 330px; padding: 38px; background: var(--white); border-top: 4px solid var(--teal-500); }
.value-card span { color: var(--teal-600); font-size: 12px; font-weight: 800; }
.value-card h3 { margin: 104px 0 18px; color: var(--navy-900); font-size: 27px; }
.value-card p { margin: 0; font-size: 14px; line-height: 1.95; }
.locations-layout { display: grid; grid-template-columns: .65fr 1.35fr; gap: 80px; align-items: start; }
.location-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.location-card { min-height: 260px; padding: 35px; color: var(--white); background: var(--navy-800); }
.location-card:nth-child(2) { background: var(--teal-600); }
.location-card span { color: rgba(255,255,255,.58); font-size: 11px; letter-spacing: .08em; }
.location-card h3 { margin: 74px 0 14px; color: var(--white); font-size: 31px; }
.location-card p { margin: 0; color: rgba(255,255,255,.72); font-size: 14px; }

.contact-layout { display: grid; grid-template-columns: .83fr 1.17fr; gap: 94px; align-items: start; }
.contact-info h2 { color: var(--navy-900); font-size: clamp(40px, 4vw, 56px); }
.contact-info > p:not(.eyebrow) { max-width: 470px; font-size: 16px; line-height: 1.95; }
.contact-list { margin-top: 40px; border-top: 1px solid var(--line); }
.contact-list > * { display: flex; flex-direction: column; gap: 4px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.contact-list span { color: var(--muted); font-size: 11px; }
.contact-list strong { color: var(--navy-800); font-size: 15px; font-weight: 650; line-height: 1.6; }
.contact-list a:hover strong { color: var(--teal-600); }
.inquiry-form { padding: 46px; background: var(--surface); }
.form-heading { margin-bottom: 30px; }
.form-heading h2 { margin: 0; color: var(--navy-900); font-size: 36px; }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.form-grid label { display: flex; flex-direction: column; gap: 7px; }
.form-grid label > span { color: var(--navy-800); font-size: 12px; font-weight: 700; }
.form-full { grid-column: 1 / -1; }
.form-grid input, .form-grid select, .form-grid textarea { width: 100%; border: 1px solid #d8e1e5; border-radius: 0; outline: none; color: var(--ink); background: var(--white); transition: border-color .2s ease, box-shadow .2s ease; }
.form-grid input, .form-grid select { height: 50px; padding: 0 14px; }
.form-grid textarea { padding: 13px 14px; resize: vertical; }
.form-grid input:focus, .form-grid select:focus, .form-grid textarea:focus { border-color: var(--teal-500); box-shadow: 0 0 0 3px rgba(27,156,171,.1); }
.form-submit { margin-top: 26px; border: 0; }
.form-note { margin: 11px 0 0; font-size: 11px; }
.contact-map-band { position: relative; overflow: hidden; padding: 90px 0; color: var(--white); background: var(--navy-950); }
.contact-map-band .shell { display: grid; grid-template-columns: 1fr 1fr; align-items: center; }
.map-copy span { color: #55d4df; font-size: 11px; font-weight: 800; letter-spacing: .16em; }
.map-copy h2 { margin: 14px 0; color: var(--white); font-size: 50px; }
.map-copy p { color: rgba(255,255,255,.56); }
.map-art { position: relative; min-height: 260px; }
.map-ring { position: absolute; width: 330px; height: 330px; right: 20px; top: 50%; transform: translateY(-50%); border: 1px solid rgba(85,212,223,.22); border-radius: 50%; box-shadow: 0 0 0 45px rgba(85,212,223,.04), 0 0 0 90px rgba(85,212,223,.025); }
.map-point { position: absolute; right: 153px; top: 45%; display: flex; align-items: center; gap: 12px; color: var(--white); font-size: 12px; font-weight: 800; letter-spacing: .1em; }
.map-point i { width: 15px; height: 15px; border: 4px solid #55d4df; border-radius: 50%; box-shadow: 0 0 0 9px rgba(85,212,223,.18); }

.js .reveal { opacity: 0; transform: translateY(28px); transition: opacity .75s var(--ease), transform .8s var(--ease); }
.js .reveal.is-visible { opacity: 1; transform: translateY(0); }

@keyframes orbitSpin { to { transform: rotate(360deg); } }
@keyframes scrollCue { 0%, 100% { transform: scaleY(.55); transform-origin: top; opacity: .45; } 50% { transform: scaleY(1); opacity: 1; } }

@media (max-width: 1100px) {
  :root { --shell: min(100% - 48px, 1000px); }
  .main-nav { gap: 22px; }
  .brand { width: 210px; }
  .hero-layout { gap: 30px; }
  .product-stage { width: min(420px, 42vw); padding: 44px; }
  .orbit-one { width: 470px; height: 470px; }
  .orbit-two { width: 560px; height: 560px; }
  .category-grid { grid-template-columns: 1.2fr .8fr; }
  .product-grid, .catalog-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .experience-layout { gap: 54px; }
  .experience-visual { min-height: 400px; }
  .capability-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-band-inner { grid-template-columns: 1fr; gap: 30px; }
  .contact-band-inner > div:last-child { justify-content: flex-start; }
  .footer-main { grid-template-columns: 1.35fr repeat(3, 1fr); gap: 35px; }
  .detail-layout { gap: 50px; }
  .contact-layout { gap: 55px; }
}

@media (max-width: 820px) {
  :root { --shell: calc(100vw - 36px); --header-height: 72px; }
  .site-header { height: var(--header-height); }
  .brand { width: 188px; }
  .brand img { height: 44px; }
  .nav-toggle { position: relative; z-index: 3; display: flex; flex-direction: column; justify-content: center; border: 0; background: var(--navy-800); }
  .nav-toggle > span:not(.sr-only) { width: 100%; margin: 3px 0; background: var(--white); }
  .nav-toggle[aria-expanded="true"] > span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] > span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] > span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
  .main-nav { position: fixed; inset: var(--header-height) 0 0; display: flex; flex-direction: column; align-items: stretch; gap: 0; padding: 28px 24px; background: rgba(255,255,255,.99); transform: translateX(100%); visibility: hidden; transition: transform .38s var(--ease), visibility 0s .38s; }
  .main-nav.is-open { transform: translateX(0); visibility: visible; transition-delay: 0s; }
  .main-nav > a { padding: 17px 10px; border-bottom: 1px solid var(--line); font-size: 17px; }
  .main-nav > a::after { display: none; }
  .main-nav .nav-cta { margin-top: 20px; text-align: center; }
  .hero { min-height: 820px; }
  .hero-slide { inset: var(--header-height) 0 0; }
  .hero-layout { min-height: 748px; grid-template-columns: 1fr; gap: 20px; align-content: center; padding: 45px 0 110px; }
  .hero-copy { max-width: 690px; }
  .hero-lead { width: 100%; max-width: 100%; word-break: break-all; }
  .hero-copy h1, .hero-copy h2 { font-size: clamp(48px, 11vw, 68px); }
  .hero-product { min-height: 330px; }
  .product-stage { width: min(330px, 75vw); padding: 36px; }
  .orbit-one { width: 360px; height: 360px; }
  .orbit-two { width: 440px; height: 440px; }
  .stage-caption { right: -20px; bottom: 24px; min-width: 200px; padding: 15px 18px; }
  .scroll-cue { display: none; }
  .hero-controls { bottom: 23px; }
  .section { padding: 84px 0; }
  .split-heading, .story-layout, .locations-layout, .contact-layout, .detail-layout { grid-template-columns: 1fr; gap: 42px; }
  .category-grid { grid-template-columns: 1fr 1fr; grid-template-rows: 460px 320px; }
  .category-card-large { grid-column: 1 / -1; grid-row: auto; }
  .category-card { padding: 34px; }
  .category-card-large > img { width: 62%; height: 61%; }
  .category-card-tall > img { width: 60%; height: 59%; }
  .product-grid, .catalog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .experience-layout { grid-template-columns: 1fr; }
  .experience-visual { min-height: 430px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(n+3) { margin-top: 28px; padding-top: 30px; border-top: 1px solid rgba(255,255,255,.13); }
  .catalog-toolbar { align-items: stretch; flex-direction: column; }
  .product-search { flex-basis: auto; width: 100%; }
  .spec-table { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .value-card { min-height: 260px; }
  .value-card h3 { margin-top: 60px; }
  .location-grid { grid-template-columns: 1fr 1fr; }
  .contact-map-band .shell { grid-template-columns: 1fr; }
  .map-art { min-height: 330px; }
  .map-ring { left: 50%; right: auto; transform: translate(-50%, -50%); }
  .map-point { left: 50%; right: auto; transform: translateX(-50%); }
  .footer-main { grid-template-columns: repeat(2, 1fr); }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  :root { --shell: calc(100vw - 28px); }
  .hero { min-height: 790px; }
  .hero-layout { min-height: 718px; padding-top: 35px; }
  .hero-copy h1, .hero-copy h2 { margin-bottom: 18px; font-size: 45px; }
  .hero-lead { margin-bottom: 25px; font-size: 15px; }
  .button { min-height: 48px; padding: 12px 20px; }
  .hero-product { min-height: 286px; }
  .product-stage { width: 265px; padding: 30px; }
  .orbit-one { width: 300px; height: 300px; }
  .orbit-two { width: 355px; height: 355px; }
  .stage-caption { right: -8px; min-width: 176px; padding: 11px 14px; }
  .stage-caption strong { font-size: 15px; }
  .hero-controls { left: 14px; right: 14px; width: auto; transform: none; gap: 18px; }
  .section { padding: 68px 0; }
  .section-heading { margin-bottom: 36px; }
  .section-heading h2 { font-size: 36px; }
  .split-heading { gap: 24px; }
  .section-heading.compact { align-items: flex-start; flex-direction: column; }
  .category-grid { display: grid; grid-template-columns: 1fr; grid-template-rows: 390px 300px 300px; }
  .category-card-large { grid-column: auto; }
  .category-card-large > img { width: 72%; height: 55%; }
  .category-card-tall > img { width: 56%; }
  .product-grid, .catalog-grid { grid-template-columns: 1fr; }
  .product-card-image { aspect-ratio: 1 / .78; }
  .experience-visual { min-height: 340px; }
  .experience-logo { inset: 28px; }
  .experience-copy h2 { font-size: 36px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stat { padding: 24px 12px 0; }
  .stat strong { font-size: 48px; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability-card { min-height: 250px; }
  .capability-card h3 { margin-top: 62px; }
  .contact-band { padding: 58px 0; }
  .contact-band-inner > div:last-child { align-items: flex-start; flex-direction: column; }
  .footer-main { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
  .footer-bottom { flex-direction: column; }
  .page-hero { min-height: 410px; }
  .page-hero-inner { min-height: 338px; }
  .page-hero h1 { font-size: 50px; }
  .filters { display: grid; grid-template-columns: 1fr 1fr; }
  .filter-button { text-align: left; }
  .detail-image-wrap { padding: 32px; }
  .detail-copy h1 { font-size: 48px; }
  .feature-list { grid-template-columns: 1fr; }
  .spec-row { grid-template-columns: 116px 1fr; }
  .story-copy .lead-paragraph { font-size: 19px; }
  .location-grid { grid-template-columns: 1fr; }
  .inquiry-form { padding: 28px 20px; }
  .form-grid { grid-template-columns: 1fr; }
  .form-full { grid-column: auto; }
  .map-ring { width: 270px; height: 270px; }
}

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