:root {
  --ink: #132337;
  --ink-soft: #526477;
  --line: #dce5ec;
  --surface: #f5f8fb;
  --surface-strong: #eaf1f7;
  --blue: #0d5ea8;
  --blue-deep: #0a2b52;
  --navy-950: #071a33;
  --navy-900: #0a2b52;
  --blue-400: #4bb8f2;
  --white: #ffffff;
  --shadow: 0 18px 48px rgba(24, 52, 78, 0.12);
  --radius: 18px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, "Noto Sans SC", "Microsoft YaHei", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

[data-lang] {
  display: block;
}

[data-lang][hidden] {
  display: none !important;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid #73b7e8;
  outline-offset: 4px;
}

.container {
  width: min(calc(100% - 64px), var(--container));
  margin: 0 auto;
}

.skip-link {
  position: fixed;
  z-index: 10;
  top: 12px;
  left: 16px;
  padding: 8px 14px;
  color: var(--white);
  background: var(--blue-deep);
  border-radius: 8px;
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  z-index: 5;
  top: 0;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(220, 229, 236, 0.86);
  backdrop-filter: blur(16px);
}

.nav-shell {
  display: flex;
  min-height: 82px;
  align-items: center;
  gap: 28px;
}

.brand,
.footer-brand {
  display: inline-flex;
  flex-direction: column;
  gap: 1px;
  flex: 0 0 auto;
}

.brand--with-logo {
  flex-direction: row;
  align-items: center;
  gap: 8px;
}

.brand-logo-crop {
  position: relative;
  display: block;
  width: 56px;
  height: 40px;
  flex: 0 0 56px;
  overflow: hidden;
}

.brand-logo {
  position: absolute;
  top: -18px;
  left: -11px;
  display: block;
  width: 76px;
  height: 76px;
  max-width: none;
  object-fit: contain;
}

.brand-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 1px;
}

.brand-cn,
.footer-brand .brand-cn {
  color: var(--blue-deep);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.03em;
  line-height: 1.25;
}

.brand-en,
.footer-brand .brand-en {
  color: var(--ink-soft);
  font-size: 10px;
  letter-spacing: 0.02em;
  line-height: 1.35;
}

.brand-name,
.footer-brand .brand-name {
  color: var(--blue-deep);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.03em;
  line-height: 1.25;
}

.brand-sub,
.footer-brand .brand-sub {
  color: var(--ink-soft);
  font-size: 10px;
  letter-spacing: 0.02em;
  line-height: 1.35;
}

.site-nav {
  display: flex;
  flex: 1 1 auto;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-left: auto;
}

.site-nav > [data-nav-item],
.site-nav .nav-entry {
  min-width: 0;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.site-nav .nav-entry--split {
  position: relative;
  display: inline-flex;
  align-items: stretch;
}

.site-nav .site-nav-link,
.site-nav .products-menu > summary {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 0 12px;
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 650;
  text-decoration: none;
}

.site-nav .site-nav-link > span {
  color: inherit;
  font-size: inherit;
  font-weight: inherit;
}

.site-nav .products-menu > summary {
  width: 40px;
  padding: 0;
  border-left: 1px solid var(--line);
  cursor: pointer;
}

.site-nav .products-menu > summary::after { content: none; }
.site-nav .site-nav-link:hover,
.site-nav .products-menu > summary:hover { color: var(--blue); background: var(--surface); }
.site-nav .products-menu > summary:focus-visible,
.site-nav .site-nav-link:focus-visible { outline: 3px solid #73b7e8; outline-offset: 2px; }
.site-nav .products-menu { position: relative; width: auto; }
.site-nav .products-mega-menu {
  position: absolute;
  z-index: 20;
  top: calc(100% + 6px);
  right: 0;
  left: auto;
  grid-template-columns: 1fr;
  min-width: 220px;
}

.nav-shell { position: relative; }
.products-menu > summary {
  display: flex;
  min-height: 44px;
  align-items: center;
  color: var(--ink-soft);
  cursor: pointer;
  font-size: 12px;
  font-weight: 650;
  list-style: none;
}
.products-menu > summary::-webkit-details-marker { display: none; }
.products-menu > summary::after { content: "⌄"; padding-left: 7px; }
.products-menu > summary:focus-visible { outline: 3px solid #73b7e8; outline-offset: 4px; }
.products-mega-menu {
  display: grid;
  gap: 8px 18px;
  padding: 20px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
}
.products-mega-menu a { display: flex; min-height: 44px; align-items: center; padding: 7px 10px; border-radius: 6px; }
.products-mega-menu a:hover,
.products-mega-menu a:focus-visible { color: var(--blue); background: var(--surface); }

.site-nav a,
.footer-links a {
  display: inline-flex;
  flex-direction: column;
  gap: 0;
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 650;
  line-height: 1.35;
  transition: color 160ms ease;
}

.site-nav a span,
.footer-links a span {
  color: #8b9aaa;
  font-size: 10px;
  font-weight: 500;
}

.site-nav a:hover,
.footer-links a:hover,
.language-switch a:hover {
  color: var(--blue);
}

.site-nav a .language-copy,
.footer-links a .language-copy {
  color: inherit;
  font-size: inherit;
  font-weight: inherit;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.language-switch {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--ink-soft);
  font-size: 12px;
  white-space: nowrap;
}

.purchasing-question {
  max-width: 900px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--line, #dbe5ee);
  scroll-margin-top: 240px;
}

.purchasing-question h2 {
  margin: 0 0 12px;
  color: var(--ink);
  font-size: clamp(20px, 2vw, 26px);
  line-height: 1.45;
}

.purchasing-question p {
  margin-bottom: 16px;
  line-height: 1.8;
}

.purchasing-question h2 span {
  color: inherit;
  font-size: inherit;
  font-weight: inherit;
}

.purchasing-question a {
  display: inline;
}

.language-option {
  padding: 0;
  color: var(--ink-soft);
  background: transparent;
  border: 0;
  cursor: pointer;
  font: inherit;
  line-height: 1.3;
}

.language-option:hover,
.language-option.is-active {
  color: var(--blue);
  font-weight: 750;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 52px;
  padding: 0 21px;
  color: var(--white);
  background: var(--blue);
  border: 1px solid var(--blue);
  border-radius: 7px;
  box-shadow: 0 10px 22px rgba(13, 94, 168, 0.18);
  font-size: 14px;
  font-weight: 750;
  transition: background 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.button span,
.text-link span {
  color: inherit;
  font-size: 11px;
  font-weight: 500;
  opacity: 0.75;
}

.button .language-copy,
.text-link .language-copy {
  color: inherit;
  font-size: inherit;
  font-weight: inherit;
  opacity: 1;
}

.button b,
.text-link b {
  font-size: 18px;
  font-weight: 400;
  line-height: 1;
  transition: transform 160ms ease-out;
}

.button:hover b,
.button:focus-visible b,
.text-link:hover b,
.text-link:focus-visible b {
  transform: translateX(3px);
}

.button:hover {
  background: var(--blue-deep);
  border-color: var(--blue-deep);
  box-shadow: 0 12px 26px rgba(13, 94, 168, 0.25);
  transform: translateY(-2px);
}

.button-small {
  min-height: 40px;
  padding: 0 14px;
  font-size: 11px;
  gap: 6px;
  box-shadow: none;
}

.button-small span {
  font-size: 9px;
}

.button-small b {
  font-size: 15px;
}

.hero {
  overflow: hidden;
  background:
    radial-gradient(circle at 80% 10%, rgba(196, 221, 240, 0.75), transparent 27%),
    linear-gradient(125deg, #f7fafc 0%, #eef4f8 54%, #e7eff5 100%);
}

.hero--deep-blue {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  color: var(--white);
  background: linear-gradient(118deg, var(--navy-950) 0%, var(--navy-900) 54%, var(--blue) 100%);
}

.hero--deep-blue::before {
  position: absolute;
  inset: 0;
  z-index: -2;
  background: linear-gradient(90deg, rgba(7, 26, 51, 0.98) 0%, rgba(10, 43, 82, 0.88) 56%, rgba(13, 94, 168, 0.62) 100%);
  content: "";
}

.hero-glow {
  position: absolute;
  top: -18rem;
  right: 8%;
  z-index: -1;
  width: 42rem;
  height: 42rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(75, 184, 242, 0.33), transparent 68%);
  filter: blur(8px);
}

.hero--deep-blue .hero-copy,
.hero--deep-blue .hero-visual {
  animation: heroReveal 720ms cubic-bezier(0.2, 0.72, 0.2, 1) both;
}

.hero--deep-blue .hero-visual {
  animation-delay: 120ms;
}

@keyframes heroReveal {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.985);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.hero-grid {
  display: grid;
  min-height: 610px;
  grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
  align-items: center;
  gap: 30px;
  padding-top: 60px;
  padding-bottom: 62px;
}

.hero--deep-blue .hero-grid {
  position: relative;
  z-index: 1;
  display: block;
  min-height: clamp(660px, calc(100svh - 82px), 820px);
  padding-top: 72px;
  padding-bottom: 72px;
}

.hero-copy {
  position: relative;
  z-index: 1;
  padding-right: 12px;
}

.hero--deep-blue .hero-copy {
  z-index: 2;
  max-width: 720px;
  padding-right: 0;
}

@media (min-width: 821px) {
  .hero--deep-blue .hero-grid {
    width: min(calc(100% - 64px), 1280px);
  }

  .hero--deep-blue .hero-copy {
    max-width: 600px;
  }
}

.hero--deep-blue h1 {
  font-family: Georgia, "Times New Roman", "Noto Serif SC", "Songti SC", serif;
  font-weight: 700;
  line-height: 0.98;
}

.eyebrow {
  margin: 0 0 19px;
  color: var(--blue);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.eyebrow span {
  color: #a1b4c3;
  padding: 0 7px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  margin-bottom: 0;
  letter-spacing: -0.045em;
}

h1 {
  max-width: 560px;
  font-size: clamp(42px, 5vw, 73px);
  font-weight: 800;
  line-height: 1.08;
}

h1 em,
h2 em {
  color: var(--blue);
  font-style: normal;
}

.hero-lead {
  max-width: 430px;
  margin: 22px 0 9px;
  color: #43586d;
  font-size: 20px;
  line-height: 1.28;
}

.hero--deep-blue .eyebrow {
  color: #a6e2ff;
}

.hero--deep-blue .eyebrow span {
  color: rgba(255, 255, 255, 0.4);
}

.hero--deep-blue h1 em {
  color: #79d0ff;
}

.hero--deep-blue .hero-lead {
  color: rgba(247, 251, 255, 0.88);
}

.hero--deep-blue .hero-support {
  color: rgba(247, 251, 255, 0.76);
}

.hero--deep-blue .hero-support span {
  color: rgba(214, 239, 255, 0.6);
}

.hero--deep-blue .hero-support .language-copy {
  color: inherit;
  font-size: inherit;
  margin-top: 0;
}

.hero-support {
  max-width: 470px;
  margin-bottom: 26px;
  color: var(--ink-soft);
  font-size: 14px;
}

.hero-support span {
  display: block;
  margin-top: 3px;
  color: #8493a1;
  font-size: 12px;
}

.hero-support .language-copy {
  margin-top: 0;
  color: inherit;
  font-size: inherit;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 22px;
}

.hero--deep-blue .button {
  color: var(--navy-950);
  background: var(--white);
  border-color: var(--white);
  box-shadow: 0 16px 32px rgba(1, 15, 32, 0.26);
}

.hero--deep-blue .button:hover {
  color: var(--navy-950);
  background: #dff4ff;
  border-color: #dff4ff;
  box-shadow: 0 18px 36px rgba(1, 15, 32, 0.34);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--blue-deep);
  font-size: 13px;
  font-weight: 750;
}

.hero--deep-blue .text-link {
  color: var(--white);
}

.hero--deep-blue .text-link span {
  color: rgba(247, 251, 255, 0.68);
}

.text-link span {
  color: var(--ink-soft);
}

.text-link:hover {
  color: var(--blue);
}

.hero-note {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-top: 44px;
  color: #83919e;
  font-size: 11px;
}

.hero--deep-blue .hero-note {
  color: rgba(214, 239, 255, 0.68);
}

.note-dot {
  width: 7px;
  height: 7px;
  background: #78a9c8;
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(120, 169, 200, 0.16);
}

.hero--deep-blue .note-dot {
  background: var(--blue-400);
  box-shadow: 0 0 0 5px rgba(75, 184, 242, 0.18);
}

.hero-visual {
  position: relative;
  min-width: 0;
}

.hero--deep-blue .hero-visual--background {
  position: absolute;
  inset: 0 calc((100vw - 100%) / -2);
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero--deep-blue .hero-visual--background::after {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    90deg,
    rgba(7, 26, 51, 1) 0%,
    rgba(7, 26, 51, 0.95) 29%,
    rgba(7, 26, 51, 0.76) 52%,
    rgba(7, 26, 51, 0.36) 78%,
    rgba(7, 26, 51, 0.18) 100%
  );
  content: "";
}

.hero-image-frame {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 24px;
  background: linear-gradient(145deg, rgba(247, 251, 255, 0.98), rgba(220, 235, 246, 0.96));
  box-shadow: 0 30px 80px rgba(1, 15, 32, 0.34);
}

.hero-product-image {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  height: auto;
  object-fit: contain;
  transform: none;
}

.hero--deep-blue .hero-visual--background .hero-product-image {
  width: 100%;
  height: 100%;
  aspect-ratio: auto;
  object-fit: cover;
  object-position: 50% 50%;
  opacity: 0.8;
  filter: saturate(0.82) contrast(0.98) brightness(0.9);
  transform: none;
}

.product-stage {
  display: block;
  width: 100%;
  height: auto;
  min-height: 390px;
}

.visual-caption {
  position: absolute;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  width: 100%;
  color: #768999;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero--deep-blue .visual-caption {
  color: rgba(34, 63, 87, 0.62);
}

.hero--deep-blue .hero-visual--background .visual-caption {
  z-index: 2;
  color: rgba(255, 255, 255, 0.62);
}

.visual-caption-top {
  top: -2px;
  padding: 0 15px;
}

.visual-caption-top span:first-child {
  color: var(--blue);
  font-weight: 800;
}

.hero--deep-blue .visual-caption-top span:first-child {
  color: var(--blue);
}

.visual-caption-bottom {
  bottom: 4px;
  padding: 0 15px;
}

.visual-caption-bottom span:last-child {
  color: #9aa8b4;
}

.hero--deep-blue .visual-caption-bottom span:last-child {
  color: #71889a;
}

.hero--deep-blue .hero-visual--background .visual-caption-bottom span:last-child {
  color: rgba(255, 255, 255, 0.52);
}

.visual-caption .language-copy {
  color: inherit;
  font-size: inherit;
  font-weight: inherit;
}

.section {
  padding: 92px 0;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 32px;
}

.section-heading .eyebrow {
  margin-bottom: 11px;
}

h2 {
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.1;
}

h2 span {
  color: #8b9aa8;
  font-size: 0.45em;
  font-weight: 500;
  letter-spacing: 0;
}

h1 .language-copy,
h2 .language-copy {
  color: inherit;
  font-size: inherit;
  font-weight: inherit;
  letter-spacing: inherit;
}

.eyebrow .language-copy {
  padding: 0;
  color: inherit;
}

.section-heading h2 .language-copy,
.about-grid h2 .language-copy,
.inquiry-copy h2 .language-copy {
  color: inherit;
  font-size: inherit;
  font-weight: inherit;
}

.motion-ready [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 680ms cubic-bezier(0.2, 0.72, 0.2, 1),
    transform 680ms cubic-bezier(0.2, 0.72, 0.2, 1);
  transition-delay: var(--reveal-delay, 0ms);
}

.motion-ready [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal] .eyebrow,
[data-reveal].eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
}

[data-reveal] .eyebrow::after,
[data-reveal].eyebrow::after {
  width: 28px;
  height: 2px;
  flex: 0 0 28px;
  background: var(--blue);
  content: "";
  opacity: 0.78;
  transform: scaleX(1);
  transform-origin: left center;
  transition: transform 520ms cubic-bezier(0.2, 0.72, 0.2, 1);
  transition-delay: calc(var(--reveal-delay, 0ms) + 120ms);
}

[data-reveal] .eyebrow-light::after,
[data-reveal].eyebrow-light::after {
  background: #79bfff;
}

.motion-ready [data-reveal] .eyebrow::after,
.motion-ready [data-reveal].eyebrow::after {
  transform: scaleX(0);
}

.motion-ready [data-reveal].is-visible .eyebrow::after {
  transform: scaleX(1);
}

.motion-ready [data-reveal].is-visible.eyebrow::after {
  transform: scaleX(1);
}

.products-section {
  background: var(--white);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.reflector-feature {
  width: min(100%, 1060px);
  margin-inline: auto;
}

.reflector-feature .product-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}

.reflector-feature .product-art {
  height: auto;
  aspect-ratio: 1 / 1;
  min-height: 0;
}

.reflector-feature .product-card-copy {
  display: grid;
  align-content: center;
  min-width: 0;
  padding: clamp(24px, 4vw, 56px);
}

.reflector-feature .product-card-copy > .reflector-feature-description {
  max-width: 420px;
  margin: 14px 0 0;
  color: var(--ink-soft);
  font-size: clamp(14px, 1.15vw, 16px);
  line-height: 1.65;
}

.catalog-card[hidden] { display: none !important; }
.catalog-grid { grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr)); }
.catalog-card { min-width: 0; }
.catalog-card .product-card { display: block; height: 100%; }
.catalog-card .product-art { height: auto; aspect-ratio: 1 / 1; }
.catalog-card .product-art img { width: 100%; height: 100%; object-fit: contain; }
.catalog-card .product-card h2 { font-size: clamp(1.25rem, 2.2vw, 1.75rem); line-height: 1.1; overflow-wrap: anywhere; }
.catalog-controls { display: grid; gap: 16px; margin: 28px 0; }
.catalog-controls [role="group"] { display: flex; flex-wrap: wrap; gap: 8px; }
.catalog-controls button { min-height: 44px; padding: 8px 14px; cursor: pointer; }
.catalog-controls button[aria-pressed="true"] { color: var(--white); background: var(--blue); }
.catalog-controls input { width: min(100%, 480px); min-height: 44px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 6px; }
.catalog-controls input:focus-visible { outline: 3px solid #73b7e8; outline-offset: 3px; }
.product-detail-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 40px; align-items: start; }
.product-detail-gallery { grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: 20px; }
.selection-guide { min-width: 0; }
.selection-guide .button { margin: 12px 0; }

.product-detail-gallery img {
  display: block;
  max-width: 100%;
  height: auto;
}

.product-card {
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.product-card:hover,
.product-card:focus-visible,
.application-card:hover,
.process-step:hover {
  border-color: #a9c8df;
  box-shadow: var(--shadow);
  transform: translateY(-6px);
}

.motion-ready .product-card[data-reveal].is-visible.is-reveal-complete,
.motion-ready .catalog-card[data-reveal].is-visible.is-reveal-complete,
.motion-ready .application-card[data-reveal].is-visible.is-reveal-complete,
.motion-ready .process-step[data-reveal].is-visible.is-reveal-complete {
  transition: border-color 180ms ease-out, box-shadow 180ms ease-out, transform 180ms ease-out;
  transition-delay: 0ms;
}

.motion-ready .product-card[data-reveal].is-visible:hover,
.motion-ready .product-card[data-reveal].is-visible:focus-visible,
.motion-ready .application-card[data-reveal].is-visible:hover,
.motion-ready .process-step[data-reveal].is-visible:hover {
  transform: translateY(-6px);
}

.product-art {
  position: relative;
  height: 218px;
  overflow: hidden;
  background:
    radial-gradient(circle at 62% 28%, rgba(255, 255, 255, 0.95), transparent 28%),
    linear-gradient(140deg, #edf3f7, #dfe8ef);
}

.product-art--photo {
  display: grid;
  min-height: 218px;
  padding: 16px;
  place-items: center;
  background: linear-gradient(145deg, #eef6fb, #dbeaf4);
}

.product-art--photo img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.product-art::after {
  position: absolute;
  right: 11%;
  bottom: 22px;
  left: 11%;
  height: 20px;
  background: rgba(64, 88, 108, 0.14);
  border-radius: 50%;
  content: "";
  filter: blur(11px);
}

.sensor-body {
  position: absolute;
  z-index: 1;
  top: 46px;
  left: 31%;
  width: 77px;
  height: 132px;
  background: linear-gradient(140deg, #344452, #101a23 76%);
  border-radius: 12px;
  box-shadow: 15px 18px 23px rgba(34, 55, 72, 0.22);
  transform: rotate(4deg);
}

.sensor-body::before {
  position: absolute;
  top: 21px;
  right: 11px;
  left: 11px;
  height: 71px;
  border: 1px solid #5c6b77;
  border-radius: 7px;
  content: "";
}

.sensor-lens {
  position: absolute;
  z-index: 2;
  top: 76px;
  left: calc(31% + 24px);
  width: 30px;
  height: 30px;
  background: radial-gradient(circle at 38% 35%, #ff9e86 2%, #af2e31 18%, #4b171e 67%);
  border: 3px solid #1e2b35;
  border-radius: 50%;
  box-shadow: 0 0 0 6px rgba(143, 42, 43, 0.12);
  transform: rotate(4deg);
}

.sensor-body-secondary {
  top: 78px;
  left: 52%;
  width: 65px;
  height: 112px;
  opacity: 0.94;
  transform: rotate(-4deg);
}

.reflector {
  position: absolute;
  z-index: 1;
  display: block;
  background:
    radial-gradient(circle, transparent 38%, rgba(123, 143, 158, 0.7) 39% 44%, transparent 45%) 0 0 / 19px 19px,
    linear-gradient(145deg, #f8fbfd, #bdcbd5);
  border: 7px solid #f3f7f9;
  outline: 1px solid #9eafbb;
  box-shadow: 16px 17px 25px rgba(58, 82, 100, 0.18);
}

.reflector-large {
  top: 40px;
  left: 31%;
  width: 150px;
  height: 134px;
  border-radius: 11px;
  transform: rotate(5deg);
}

.reflector-small {
  top: 90px;
  left: 59%;
  width: 78px;
  height: 70px;
  border-width: 5px;
  border-radius: 8px;
  transform: rotate(5deg);
}

.reflector-round {
  top: 58px;
  left: 15%;
  width: 80px;
  height: 80px;
  border-radius: 50%;
}

.bracket {
  position: absolute;
  z-index: 1;
  width: 57px;
  height: 90px;
  background: linear-gradient(145deg, #e6edf1, #8e9ea8);
  border: 1px solid #8597a4;
  border-radius: 6px;
  box-shadow: 12px 17px 22px rgba(51, 73, 90, 0.17);
}

.bracket::after,
.bracket::before {
  position: absolute;
  width: 11px;
  height: 11px;
  border: 2px solid #71828d;
  border-radius: 50%;
  content: "";
}

.bracket::before {
  top: 13px;
  left: 21px;
}

.bracket::after {
  bottom: 13px;
  left: 21px;
}

.bracket-one {
  top: 71px;
  left: 30%;
  transform: skewY(-10deg) rotate(-9deg);
}

.bracket-two {
  top: 85px;
  left: 51%;
  transform: skewY(10deg) rotate(6deg);
}

.cable {
  position: absolute;
  z-index: 1;
  top: 126px;
  left: 63%;
  width: 115px;
  height: 37px;
  border: 9px solid #1b2833;
  border-left-color: transparent;
  border-radius: 50%;
  transform: rotate(20deg);
}

.cable::after {
  position: absolute;
  top: -14px;
  right: -25px;
  width: 34px;
  height: 28px;
  background: #243541;
  border-radius: 8px;
  content: "";
}

.product-card-copy {
  position: relative;
  padding: 19px 22px 21px;
  background: var(--white);
}

.product-index {
  margin-bottom: 6px;
  color: #9aaab7;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.09em;
}

.product-card h3 {
  margin-bottom: 2px;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.product-card-copy > p:not(.product-index) {
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 12px;
}

.card-arrow {
  position: absolute;
  right: 22px;
  bottom: 21px;
  color: var(--blue);
  font-size: 20px;
}

.application-section,
.qa-section {
  background: var(--surface-strong);
}

.section-heading--split > p {
  max-width: 360px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.application-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.application-grid,
.process-grid {
  gap: 18px;
  margin-top: 44px;
}

.application-card,
.process-step {
  min-height: 250px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  transition: border-color 180ms ease-out, box-shadow 180ms ease-out, transform 180ms ease-out;
}

.application-card {
  display: flex;
  flex-direction: column;
}

.card-index,
.process-index,
.selection-number {
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.application-card h3,
.process-step h3,
.selection-item h3 {
  margin: 24px 0 12px;
  font-size: clamp(1.15rem, 2vw, 1.42rem);
  line-height: 1.25;
}

.application-card p,
.process-step p,
.selection-intro p,
.qa-intro p,
.qa-answer p {
  color: var(--ink-soft);
}

.application-card p {
  margin-top: auto;
}

.case-story {
  max-width: 960px;
  margin: 0 auto;
  padding: clamp(24px, 5vw, 52px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.case-story h2 {
  max-width: 760px;
  margin: 20px 0 32px;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
}

.case-story-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px 36px;
}

.case-story-part h3 {
  margin-bottom: 10px;
  font-size: 1.05rem;
}

.case-story-part p {
  margin: 0;
  color: var(--ink-soft);
}

@media (max-width: 820px) {
  .case-story-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

.selection-section {
  color: var(--white);
  background: linear-gradient(125deg, var(--navy-950), #0d4d82);
}

.selection-layout,
.qa-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  gap: clamp(48px, 8vw, 110px);
  align-items: start;
}

.selection-intro h2,
.qa-intro h2 {
  margin: 12px 0 18px;
  font-size: clamp(2rem, 4vw, 3.8rem);
  line-height: 1.02;
}

.selection-intro p {
  color: rgba(255, 255, 255, 0.72);
}

.selection-list,
.process-grid {
  list-style: none;
  padding: 0;
}

.selection-list {
  margin: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
}

.selection-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 18px;
  padding: 24px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.22);
}

.selection-item h3 {
  margin: 0;
}

.selection-number {
  color: #79bfff;
}

.selection-cta {
  grid-column: 2;
  margin-top: 28px;
}

.process-grid {
  margin-bottom: 0;
}

.process-step {
  position: relative;
}

.qa-list {
  border-top: 1px solid var(--line);
}

.qa-item {
  border-bottom: 1px solid var(--line);
}

.qa-item summary {
  position: relative;
  padding: 24px 44px 24px 0;
  cursor: pointer;
  font-size: 1.08rem;
  font-weight: 750;
  list-style: none;
}

.qa-item summary::-webkit-details-marker {
  display: none;
}

.qa-item summary::after {
  position: absolute;
  top: 50%;
  right: 4px;
  color: var(--blue);
  content: "+";
  font-size: 1.5rem;
  transform: translateY(-50%) rotate(0deg);
  transition: transform 220ms ease-out;
}

.qa-item[open] summary::after {
  content: "−";
  transform: translateY(-50%) rotate(180deg);
}

.qa-item[open] .qa-answer {
  animation: qaAnswerReveal 220ms ease-out both;
}

@keyframes qaAnswerReveal {
  from {
    opacity: 0;
    transform: translateY(6px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.qa-item summary:focus-visible {
  outline: 3px solid rgba(29, 115, 194, 0.34);
  outline-offset: 5px;
  border-radius: 4px;
}

.qa-answer {
  padding: 0 44px 24px 0;
}

.qa-answer p {
  margin: 0;
}

.about-section {
  background: var(--white);
}

#customer-overview {
  scroll-margin-top: 16px;
}

@media (max-width: 820px) {
  #customer-overview {
    scroll-margin-top: 120px;
  }
}

.company-profile-copy {
  max-width: 1000px;
  margin: 0 auto 28px;
}

.company-profile-image {
  display: block;
  width: 100%;
  max-width: 1000px;
  height: auto;
  margin-inline: auto;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 0.83fr;
  gap: 100px;
  align-items: end;
}

.about-grid h2 {
  max-width: 580px;
}

.about-copy {
  max-width: 420px;
  color: var(--ink-soft);
  font-size: 14px;
}

.about-copy p {
  margin-bottom: 14px;
}

.about-copy .about-en {
  color: #8696a4;
  font-size: 12px;
}

.about-copy .text-link {
  margin-top: 13px;
}

.inquiry-band {
  color: var(--white);
  background:
    radial-gradient(circle at 80% 10%, rgba(77, 145, 196, 0.3), transparent 34%),
    linear-gradient(120deg, #0b4678, #0d5ea8);
}

.inquiry-inner {
  display: grid;
  grid-template-columns: 1fr 0.92fr;
  gap: 90px;
  align-items: center;
  padding-top: 66px;
  padding-bottom: 66px;
}

.eyebrow-light {
  color: #9bd0ef;
}

.inquiry-copy h2 {
  max-width: 590px;
  margin-bottom: 17px;
  font-size: clamp(34px, 4vw, 56px);
}

.inquiry-copy > p:not(.eyebrow-light),
.inquiry-en {
  max-width: 480px;
  margin-bottom: 0;
  color: #d3e6f4;
  font-size: 14px;
}

.inquiry-en {
  margin-top: 5px;
  color: #a9c8dd;
  font-size: 12px;
}

.inquiry-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 22px;
}

.inquiry-button-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  max-width: 100%;
}

.inquiry-button-row > a {
  box-sizing: border-box;
  display: inline-flex;
  flex: 0 0 208px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 208px;
  height: 52px;
  min-height: 52px;
  max-width: 100%;
  padding: 10px 12px;
  border-radius: 9px;
  font-size: 13px;
  line-height: 1.4;
}

.inquiry-whatsapp-link {
  border: 1px solid #c4e6d2;
  color: #126637;
  background: #fff;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 180ms ease, border-color 180ms ease;
}

.inquiry-whatsapp-link .whatsapp-icon {
  flex: 0 0 26px;
  width: 26px;
  height: 26px;
  color: #169c50;
}

.inquiry-whatsapp-link:hover {
  color: #126637;
  background: #edfff3;
  border-color: #169c50;
}

.inquiry-whatsapp-link:focus-visible {
  outline: 3px solid #8ce3ac;
  outline-offset: 4px;
}

.inquiry-shop-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 44px;
  max-width: 100%;
  padding: 9px 14px;
  border: 1px solid #f4d4bc;
  border-radius: 9px;
  color: #a53b00;
  background: #fff;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.4;
  text-decoration: none;
  transition: background-color 180ms ease, border-color 180ms ease;
}

.inquiry-shop-link img {
  display: block;
  flex: 0 0 auto;
  width: 64px;
  height: auto;
}

.inquiry-shop-link:hover {
  color: #a53b00;
  background: #fff4eb;
  border-color: #ff8b45;
}

.inquiry-shop-link:focus-visible {
  outline: 3px solid #ffb57e;
  outline-offset: 4px;
}

.button-light {
  color: var(--blue-deep);
  background: var(--white);
  border-color: var(--white);
  box-shadow: 0 12px 24px rgba(1, 34, 64, 0.18);
}

.button-light:hover {
  color: var(--blue-deep);
  background: #eaf6ff;
  border-color: #eaf6ff;
}

.contact-lines {
  display: flex;
  flex-direction: column;
  gap: 3px;
  color: #d7e9f5;
  font-size: 13px;
}

.contact-lines a:hover {
  color: var(--white);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.contact-lines span {
  color: #a9c8dd;
  font-size: 11px;
}

.contact-lines .whatsapp-line {
  margin-top: 5px;
  color: #c4e1ef;
}

.site-footer {
  color: #bdc9d3;
  background: #112334;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.05fr 1.6fr auto;
  align-items: center;
  gap: 28px;
  min-height: 125px;
}

.footer-brand .brand-cn {
  color: var(--white);
  font-size: 14px;
}

.footer-brand .brand-name {
  color: var(--white);
  font-size: 14px;
}

.footer-brand .brand-en {
  color: #91a6b8;
}

.footer-brand .brand-sub {
  color: #91a6b8;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 22px;
}

.footer-links a {
  color: #dce6ed;
  font-size: 11px;
}

.footer-links a span {
  color: #8fa4b5;
}

.footer-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 3px;
  color: #8097aa;
  font-size: 10px;
  text-align: right;
}

@media (max-width: 1080px) {
  .nav-shell {
    gap: 20px;
  }

  .site-nav {
    gap: 10px;
  }

  .header-actions {
    gap: 12px;
  }

  .language-switch {
    gap: 5px;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

}

@media (max-width: 820px) {
  .container {
    width: min(calc(100% - 40px), var(--container));
  }

  .nav-shell {
    min-height: 74px;
    flex-wrap: wrap;
    padding-top: 12px;
    padding-bottom: 12px;
  }

  .brand {
    margin-right: auto;
  }

  .brand-cn {
    font-size: 15px;
  }

  .brand-en {
    font-size: 9px;
  }

  .site-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    order: 3;
    flex-basis: 100%;
    justify-content: flex-start;
    gap: 8px;
    overflow: visible;
    padding-top: 8px;
    border-top: 1px solid var(--line);
  }

  .site-nav > [data-nav-item],
  .site-nav .nav-entry--split { width: 100%; }
  .site-nav .nav-entry--split .site-nav-link { flex: 1; }
  .site-nav .products-mega-menu { position: absolute; min-width: 220px; }
  .product-detail-layout { grid-template-columns: 1fr; }

  .header-actions {
    order: 1;
    margin-left: auto;
  }

  .language-switch {
    order: 4;
    flex-basis: 100%;
    justify-content: flex-end;
    padding-top: 8px;
  }

  .button-small {
    min-height: 36px;
    padding: 0 10px;
  }

  .hero-grid,
  .about-grid,
  .inquiry-inner {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    padding-top: 50px;
  }

  .hero--deep-blue .hero-grid {
    min-height: 0;
    padding-top: 56px;
    padding-bottom: 56px;
  }

  .hero-copy {
    padding-right: 0;
  }

  .hero-visual {
    margin: 18px -9px -8px;
  }

  .hero--deep-blue .hero-visual {
    margin-top: 26px;
  }

  .hero--deep-blue .hero-visual--background {
    inset: 0 calc((100vw - 100%) / -2);
    margin: 0;
  }

  .hero--deep-blue .hero-visual--background::after {
    background: linear-gradient(
      180deg,
      rgba(7, 26, 51, 0.98) 0%,
      rgba(7, 26, 51, 0.84) 50%,
      rgba(7, 26, 51, 0.62) 100%
    );
  }

  .hero--deep-blue .hero-visual--background .hero-product-image {
    object-position: 50% 50%;
    opacity: 0.62;
    transform: none;
  }

  .product-stage {
    min-height: 0;
  }

  .product-grid {
    grid-template-columns: 1fr;
  }

  .reflector-feature .product-card {
    grid-template-columns: 1fr;
  }

  .product-art {
    height: 190px;
  }

  .product-art--photo {
    min-height: 190px;
    height: 190px;
    padding: 12px;
  }

  .application-grid,
  .process-grid,
  .selection-layout,
  .qa-layout {
    grid-template-columns: 1fr;
  }

  .application-card,
  .process-step {
    min-height: 0;
  }

  .selection-layout,
  .qa-layout {
    gap: 36px;
  }

  .selection-cta {
    grid-column: 1;
  }

  .about-grid {
    gap: 35px;
  }

  .inquiry-inner {
    gap: 34px;
    padding-top: 54px;
    padding-bottom: 54px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 20px;
    padding-top: 30px;
    padding-bottom: 30px;
  }

  .footer-links {
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .footer-meta {
    align-items: flex-start;
    text-align: left;
  }
}

@media (max-width: 520px) {
  body {
    font-size: 15px;
  }

  .container {
    width: min(calc(100% - 30px), var(--container));
  }

  .header-actions .button-small {
    font-size: 10px;
  }

  .header-actions .button-small b {
    display: none;
  }

  .brand {
    max-width: 220px;
  }

  .brand.brand--with-logo {
    max-width: 100%;
    gap: 7px;
  }

  .brand--with-logo .brand-logo-crop {
    width: 46px;
    height: 36px;
    flex-basis: 46px;
  }

  .brand--with-logo .brand-logo {
    top: -14px;
    left: -9px;
    width: 62px;
    height: 62px;
  }

  .brand-name {
    font-size: 15px;
    letter-spacing: 0;
  }

  .brand-sub {
    font-size: 9px;
    letter-spacing: 0;
  }

  h1 {
    font-size: 42px;
  }

  .hero-lead {
    font-size: 17px;
  }

  .section {
    padding: 68px 0;
  }

  .section-heading {
    display: block;
  }

  .section-heading .text-link {
    margin-top: 18px;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 17px;
  }

  .hero-note {
    margin-top: 29px;
  }

  .visual-caption {
    font-size: 8px;
  }

  .product-art {
    height: 175px;
  }

  .product-art--photo {
    min-height: 175px;
    height: 175px;
  }

  .application-card,
  .process-step {
    padding: 24px;
  }

  .selection-item {
    grid-template-columns: 38px 1fr;
  }

  .qa-item summary {
    padding-right: 36px;
  }

  .inquiry-copy h2 {
    font-size: 39px;
  }

  .contact-lines {
    font-size: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }

  .hero--deep-blue .hero-copy,
  .hero--deep-blue .hero-visual {
    animation: none;
  }

  .motion-ready [data-reveal],
  .motion-ready [data-reveal].is-visible {
    opacity: 1;
    transform: none;
    transition: none;
  }

  [data-reveal] .eyebrow::after,
  [data-reveal].eyebrow::after,
  .motion-ready [data-reveal].is-visible .eyebrow::after,
  .motion-ready [data-reveal].is-visible.eyebrow::after {
    transform: scaleX(1);
    transition: none;
  }

  .qa-item[open] .qa-answer {
    animation: none;
  }
}