:root {
  --bg: #0b1117;
  --bg-soft: #101820;
  --panel: #151f28;
  --panel-2: #1b2731;
  --paper: #eef3f6;
  --paper-2: #dfe7ec;
  --ink: #071017;
  --muted: #5f6f7b;
  --muted-light: #aebac2;
  --line: rgba(117, 153, 174, 0.24);
  --line-dark: rgba(255, 255, 255, 0.14);
  --white: #ffffff;
  --accent: #00a9e8;
  --accent-2: #78ddff;
  --accent-dark: #0077aa;
  --radius: 18px;
  --radius-sm: 10px;
  --shadow: 0 28px 80px rgba(2, 10, 18, 0.28);
  --container: min(1280px, calc(100% - 48px));
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 20% 0%, rgba(0, 169, 232, 0.18), transparent 28rem),
    linear-gradient(180deg, #0b1117 0%, #101820 48%, #eef3f6 48%, #eef3f6 100%);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

body.nav-open {
  overflow: hidden;
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

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

h1,
h2,
h3,
strong {
  text-wrap: balance;
}

h1 {
  margin-bottom: 28px;
  color: var(--white);
  font-size: clamp(4rem, 9vw, 9rem);
  font-weight: 820;
  line-height: 0.85;
  letter-spacing: -0.065em;
}

h2 {
  margin-bottom: 22px;
  font-size: clamp(2.4rem, 5vw, 5.8rem);
  font-weight: 760;
  line-height: 0.94;
  letter-spacing: -0.055em;
}

h3 {
  font-size: clamp(1.4rem, 2.5vw, 2.2rem);
  line-height: 1.02;
  letter-spacing: -0.035em;
}

p {
  color: inherit;
}

.skip-link {
  position: fixed;
  z-index: 100;
  left: 16px;
  top: 16px;
  transform: translateY(-80px);
  border-radius: 999px;
  padding: 10px 16px;
  background: var(--white);
  color: var(--ink);
  font-weight: 700;
  transition: transform 180ms ease;
}

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

.site-header {
  position: fixed;
  z-index: 50;
  top: 18px;
  left: 50%;
  display: flex;
  width: min(1160px, calc(100% - 36px));
  min-height: 60px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  padding: 8px 14px 8px 18px;
  color: var(--white);
  background: rgba(7, 16, 23, 0.48);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.18);
  transform: translateX(-50%);
  backdrop-filter: blur(22px) saturate(140%);
  -webkit-backdrop-filter: blur(22px) saturate(140%);
  transition: background 220ms ease, border-color 220ms ease, box-shadow 220ms ease, color 220ms ease, top 220ms ease;
}

.site-header.is-scrolled,
.site-header.site-header-solid,
.site-header.nav-active {
  top: 12px;
  border-color: rgba(10, 24, 34, 0.16);
  background: rgba(245, 249, 251, 0.92);
  color: var(--ink);
  box-shadow: 0 18px 60px rgba(4, 14, 22, 0.12);
}

.brand {
  display: inline-flex;
  width: 170px;
  flex: 0 0 auto;
  align-items: center;
  filter: brightness(0) invert(1);
  transition: filter 200ms ease;
}

.site-header.is-scrolled .brand,
.site-header.site-header-solid .brand,
.site-header.nav-active .brand {
  filter: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.4vw, 30px);
  font-size: 0.76rem;
  font-weight: 760;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav a {
  position: relative;
  text-decoration: none;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 2px;
  border-radius: 999px;
  background: var(--accent);
  content: "";
  opacity: 0;
  transform: scaleX(0.45);
  transition: opacity 180ms ease, transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a[aria-current="page"]::after {
  opacity: 1;
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid currentColor;
  border-radius: 999px;
  background: transparent;
  color: inherit;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  margin: 5px auto;
  border-radius: 999px;
  background: currentColor;
}

.page-main {
  width: 100%;
  overflow-x: hidden;
}

.section-pad {
  padding: clamp(92px, 12vw, 176px) clamp(20px, 5vw, 72px);
}

.hero-section {
  position: relative;
  min-height: 100dvh;
  overflow: hidden;
  color: var(--white);
  background:
    radial-gradient(circle at 70% 30%, rgba(0, 169, 232, 0.22), transparent 22rem),
    radial-gradient(circle at 12% 86%, rgba(120, 221, 255, 0.12), transparent 28rem),
    linear-gradient(135deg, #071017 0%, #0c1720 42%, #111b24 100%);
}

.hero-section::before {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 84px 84px;
  content: "";
  mask-image: linear-gradient(180deg, transparent 0%, #000 18%, #000 78%, transparent 100%);
}

.hero-section::after,
.image-section::after {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px),
    radial-gradient(circle at 60% 70%, rgba(255, 255, 255, 0.05) 0 1px, transparent 1px);
  background-size: 19px 19px, 31px 31px;
  content: "";
  opacity: 0.42;
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  min-height: 100dvh;
  width: var(--container);
  margin: 0 auto;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.36fr);
  gap: clamp(28px, 7vw, 96px);
  align-items: center;
  padding: 130px 0 76px;
}

.hero-copy {
  max-width: 980px;
}

.hero-copy h1 {
  font-size: clamp(2.62rem, 6.8vw, 7.2rem);
  line-height: 0.9;
}

.hero-kicker,
.section-mark {
  display: inline-flex;
  margin-bottom: 20px;
  color: var(--accent-2);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 680;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section-mark {
  color: var(--accent-dark);
}

.hero-subtitle {
  max-width: 680px;
  margin-bottom: 36px;
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(1.12rem, 2vw, 1.55rem);
  line-height: 1.45;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 13px 22px;
  font-size: 0.78rem;
  font-weight: 780;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
  transition: transform 220ms ease, background 220ms ease, border-color 220ms ease, color 220ms ease, box-shadow 220ms ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0) scale(0.98);
}

.btn:focus-visible,
.site-nav a:focus-visible,
.nav-toggle:focus-visible,
.text-link:focus-visible {
  outline: 3px solid rgba(0, 169, 232, 0.55);
  outline-offset: 4px;
}

.btn-primary {
  background: var(--accent);
  color: #001018;
  box-shadow: 0 18px 42px rgba(0, 169, 232, 0.22);
}

.btn-primary:hover {
  background: #43cfff;
}

.btn-secondary {
  border-color: rgba(255, 255, 255, 0.34);
  background: rgba(255, 255, 255, 0.06);
  color: var(--white);
}

.btn-secondary:hover {
  border-color: rgba(255, 255, 255, 0.72);
  background: rgba(255, 255, 255, 0.12);
}

.btn-light {
  background: var(--white);
  color: var(--ink);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.16);
}

.hero-panel {
  align-self: end;
  margin-bottom: clamp(20px, 5vh, 70px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  padding: 26px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.035)),
    rgba(11, 17, 23, 0.38);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
}

.hero-panel span {
  display: block;
  margin-bottom: 22px;
  color: var(--accent-2);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero-panel strong {
  display: block;
  margin-bottom: 18px;
  font-size: 1.26rem;
  line-height: 1.14;
}

.hero-panel p {
  margin: 0;
  color: rgba(255, 255, 255, 0.66);
}

.section-intro {
  width: var(--container);
  margin: 0 auto clamp(42px, 7vw, 82px);
}

.section-intro.narrow {
  max-width: 940px;
  text-align: center;
}

.section-intro h2,
.story-copy h2,
.image-copy h2,
.cta-inner h2,
.contact-primary h2 {
  color: var(--ink);
}

.section-intro p {
  max-width: 660px;
  color: var(--muted);
  font-size: 1.05rem;
}

.section-intro.narrow p {
  margin-right: auto;
  margin-left: auto;
}

.snapshot-section,
.products-stage,
.belief-section,
.timeline-section,
.product-catalog,
.credential-band,
.contact-layout,
.social-section {
  background: var(--paper);
}

.snapshot-section {
  position: relative;
  background:
    linear-gradient(135deg, rgba(0, 169, 232, 0.08), transparent 32rem),
    linear-gradient(180deg, #f1f6f8, #e7eef2);
}

.metric-grid {
  display: grid;
  width: var(--container);
  margin: 0 auto;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border-radius: var(--radius);
  background: rgba(10, 31, 44, 0.14);
  box-shadow: var(--shadow);
}

.metric-card {
  min-height: 300px;
  padding: clamp(24px, 3vw, 38px);
  background:
    radial-gradient(circle at 15% 12%, rgba(0, 169, 232, 0.12), transparent 12rem),
    #ffffff;
}

.metric-card strong {
  display: block;
  margin-bottom: clamp(50px, 7vw, 94px);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: clamp(2rem, 4vw, 4.7rem);
  font-weight: 760;
  letter-spacing: -0.06em;
  line-height: 0.9;
  font-variant-numeric: tabular-nums;
}

.metric-card span,
.value-card span,
.partner-card span,
.process-card span {
  display: block;
  color: var(--muted);
}

.products-stage {
  background:
    linear-gradient(180deg, #0d151d 0%, #101820 100%);
  color: var(--white);
}

.products-stage .section-intro h2,
.certificate-strip .section-intro h2,
.products-stage .section-intro p,
.certificate-strip .section-intro p {
  color: var(--white);
}

.products-stage .section-mark,
.certificate-strip .section-mark,
.cta-section .section-mark,
.image-section .section-mark {
  color: var(--accent-2);
}

.product-bento {
  display: grid;
  width: var(--container);
  margin: 0 auto;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-auto-flow: dense;
  gap: 16px;
}

.product-block {
  position: relative;
  display: flex;
  min-height: 310px;
  grid-column: span 4;
  align-items: end;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  color: var(--white);
  background: var(--panel);
  text-decoration: none;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.22);
}

.product-block.product-large {
  min-height: 520px;
  grid-column: span 6;
  grid-row: span 2;
}

.product-block:nth-child(2),
.product-block:nth-child(3) {
  grid-column: span 3;
}

.product-block img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.78) contrast(1.08);
  transform: scale(1.03);
  transition: transform 700ms ease, filter 700ms ease;
}

.product-block::after {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(5, 12, 18, 0.08), rgba(5, 12, 18, 0.82)),
    radial-gradient(circle at 16% 10%, rgba(0, 169, 232, 0.28), transparent 18rem);
  content: "";
}

.product-block:hover img {
  filter: saturate(0.92) contrast(1.14);
  transform: scale(1.09);
}

.product-block span,
.product-block p {
  position: relative;
  z-index: 1;
}

.product-block span {
  display: block;
  width: 100%;
  padding: 24px;
  font-size: clamp(1.2rem, 2.1vw, 2rem);
  font-weight: 760;
  letter-spacing: -0.04em;
  line-height: 1.04;
}

.product-large {
  flex-direction: column;
  justify-content: flex-end;
  align-items: flex-start;
}

.product-large p {
  max-width: 480px;
  margin: -12px 24px 28px;
  color: rgba(255, 255, 255, 0.76);
}

.center-action {
  display: flex;
  justify-content: center;
  margin-top: 44px;
}

.image-section {
  position: relative;
  display: grid;
  min-height: 720px;
  align-items: end;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(7, 16, 23, 0.88), rgba(7, 16, 23, 0.56), rgba(7, 16, 23, 0.2)),
    url("assets/images/products/manufacturing-detail.jpg") center / cover no-repeat;
  color: var(--white);
}

.cooperation-image {
  background:
    linear-gradient(90deg, rgba(7, 16, 23, 0.9), rgba(7, 16, 23, 0.58), rgba(7, 16, 23, 0.24)),
    url("assets/images/products/global-cooperate.jpg") center / cover no-repeat;
}

.image-copy {
  position: relative;
  z-index: 1;
  width: min(760px, calc(100% - 48px));
  margin-left: clamp(20px, 7vw, 112px);
}

.image-copy h2,
.image-copy p {
  color: var(--white);
}

.image-copy p {
  max-width: 620px;
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.75);
  font-size: 1.08rem;
}

.split-story {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.82fr);
  gap: clamp(32px, 7vw, 96px);
  align-items: center;
  background: var(--paper);
}

.story-media {
  min-height: 600px;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.story-media img {
  width: 100%;
  height: 100%;
  min-height: 600px;
  object-fit: cover;
  filter: saturate(0.84) contrast(1.08);
}

.story-copy {
  max-width: 640px;
}

.story-copy p,
.contact-primary p,
.cta-inner p {
  color: var(--muted);
  font-size: 1.06rem;
}

.text-link {
  display: inline-flex;
  margin-top: 14px;
  color: var(--accent-dark);
  font-weight: 760;
  letter-spacing: 0.02em;
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
}

.partner-section {
  background:
    linear-gradient(135deg, rgba(0, 169, 232, 0.06), transparent 36rem),
    var(--paper-2);
}

.partner-grid,
.value-grid,
.credential-grid,
.social-grid {
  display: grid;
  width: var(--container);
  margin: 0 auto;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.value-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.partner-card,
.value-card,
.credential-card {
  min-height: 260px;
  border: 1px solid rgba(10, 31, 44, 0.1);
  border-radius: var(--radius);
  padding: 30px;
  background: rgba(255, 255, 255, 0.74);
  box-shadow: 0 20px 60px rgba(8, 24, 36, 0.08);
}

.partner-card strong,
.value-card strong,
.credential-card strong {
  display: block;
  margin-bottom: 42px;
  color: var(--ink);
  font-size: clamp(1.35rem, 2.2vw, 2.1rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.certificate-strip,
.cta-section {
  background:
    radial-gradient(circle at 80% 20%, rgba(0, 169, 232, 0.2), transparent 24rem),
    linear-gradient(135deg, #071017, #101820);
  color: var(--white);
}

.cta-section .cta-inner h2 {
  color: #ffffff;
}

.cta-section .cta-inner p {
  color: rgba(255, 255, 255, 0.78);
}

.cert-marquee {
  width: 100%;
  overflow: hidden;
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
  padding: 24px 0;
}

.cert-track {
  display: flex;
  width: max-content;
  gap: 16px;
  animation: cert-scroll 32s linear infinite;
}

.cert-track span {
  display: inline-flex;
  min-width: 172px;
  min-height: 82px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(120, 221, 255, 0.24);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.07);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

@keyframes cert-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.cta-inner {
  width: min(940px, calc(100% - 48px));
  margin: 0 auto;
  text-align: center;
}

.cta-inner h2,
.cta-inner p {
  color: var(--white);
}

.cta-inner p {
  max-width: 680px;
  margin-right: auto;
  margin-bottom: 34px;
  margin-left: auto;
  color: rgba(255, 255, 255, 0.72);
}

.inner-hero {
  position: relative;
  min-height: 72dvh;
  display: grid;
  align-items: end;
  overflow: hidden;
  padding: 150px clamp(20px, 5vw, 72px) clamp(72px, 9vw, 124px);
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(7, 16, 23, 0.92), rgba(7, 16, 23, 0.62), rgba(7, 16, 23, 0.26)),
    url("assets/images/products/product-line.jpg") center / cover no-repeat;
}

.product-hero {
  background:
    linear-gradient(90deg, rgba(7, 16, 23, 0.92), rgba(7, 16, 23, 0.64), rgba(7, 16, 23, 0.24)),
    url("assets/images/products/busduct.jpg") center / cover no-repeat;
}

.about-hero {
  background:
    linear-gradient(90deg, rgba(7, 16, 23, 0.92), rgba(7, 16, 23, 0.64), rgba(7, 16, 23, 0.24)),
    url("assets/images/products/manufacturing-detail.jpg") center / cover no-repeat;
}

.cooperate-hero {
  background:
    linear-gradient(90deg, rgba(7, 16, 23, 0.92), rgba(7, 16, 23, 0.62), rgba(7, 16, 23, 0.24)),
    url("assets/images/products/global-cooperate.jpg") center / cover no-repeat;
}

.certificate-hero,
.contact-hero {
  background:
    radial-gradient(circle at 70% 20%, rgba(0, 169, 232, 0.24), transparent 24rem),
    linear-gradient(135deg, #071017, #101820);
}

.inner-hero::after {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 96px 96px;
  content: "";
  opacity: 0.42;
}

.inner-hero-copy {
  position: relative;
  z-index: 1;
  width: min(1080px, 100%);
}

.inner-hero h1 {
  max-width: 1040px;
  font-size: clamp(3.4rem, 7vw, 7.6rem);
}

.inner-hero p {
  max-width: 760px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 1.12rem;
}

.product-catalog {
  display: grid;
  gap: clamp(54px, 8vw, 108px);
}

.product-detail {
  display: grid;
  width: var(--container);
  margin: 0 auto;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 0.88fr);
  gap: clamp(28px, 6vw, 82px);
  align-items: center;
}

.product-detail.reverse .product-image {
  order: 2;
}

.product-image {
  min-height: 520px;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.product-image img {
  width: 100%;
  height: 100%;
  min-height: 520px;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.08);
}

.product-info h2 {
  color: var(--ink);
  font-size: clamp(2rem, 4vw, 4rem);
}

.product-info p {
  color: var(--muted);
  font-size: 1.05rem;
}

dl {
  display: grid;
  gap: 1px;
  margin: 28px 0 0;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: rgba(10, 31, 44, 0.12);
}

dl div {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 18px;
  padding: 18px 20px;
  background: #ffffff;
}

dt {
  color: var(--ink);
  font-weight: 760;
}

dd {
  margin: 0;
  color: var(--muted);
}

.belief-section {
  background:
    linear-gradient(135deg, rgba(0, 169, 232, 0.07), transparent 36rem),
    var(--paper);
}

.timeline-list,
.process-track {
  display: grid;
  width: min(980px, calc(100% - 48px));
  margin: 0 auto;
  gap: 12px;
}

.timeline-item,
.process-card {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 24px;
  border-radius: var(--radius-sm);
  padding: 24px;
  background: #ffffff;
  box-shadow: 0 16px 46px rgba(8, 24, 36, 0.08);
}

.timeline-item strong,
.process-card strong {
  color: var(--accent-dark);
  font-family: var(--font-mono);
}

.partner-model {
  background: var(--paper);
}

.model-columns {
  display: grid;
  width: var(--container);
  margin: 0 auto;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.model-panel {
  min-height: 520px;
  border-radius: var(--radius);
  padding: clamp(28px, 5vw, 56px);
  background:
    radial-gradient(circle at 12% 12%, rgba(0, 169, 232, 0.12), transparent 18rem),
    #ffffff;
  box-shadow: var(--shadow);
}

.model-panel h3 {
  margin-bottom: clamp(42px, 7vw, 88px);
}

.model-panel ul {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.model-panel li {
  border-top: 1px solid rgba(10, 31, 44, 0.12);
  padding-top: 16px;
  color: var(--muted);
}

.process-river {
  background:
    linear-gradient(180deg, #101820, #071017);
  color: var(--white);
}

.process-river .section-intro h2,
.process-river .section-intro p {
  color: var(--white);
}

.process-river .section-mark {
  color: var(--accent-2);
}

.process-card {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.process-card strong {
  color: var(--accent-2);
}

.process-card span {
  color: rgba(255, 255, 255, 0.72);
}

.credential-band {
  background: var(--paper);
}

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

.credential-card span {
  display: block;
  margin-bottom: 20px;
  color: var(--accent-dark);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.credential-card p {
  color: var(--muted);
}

.certificate-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  background:
    radial-gradient(circle at 20% 8%, rgba(0, 169, 232, 0.09), transparent 28rem),
    var(--paper-2);
}

.certificate-card {
  overflow: hidden;
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: 0 22px 60px rgba(8, 24, 36, 0.12);
}

.certificate-card img {
  width: 100%;
  height: 470px;
  padding: 18px;
  object-fit: contain;
  background: #f7fafc;
}

.certificate-card h2 {
  margin: 0;
  padding: 22px 24px 26px;
  font-size: 1.05rem;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(360px, 0.86fr);
  gap: clamp(32px, 7vw, 96px);
  align-items: start;
}

.contact-primary {
  max-width: 660px;
  justify-self: end;
}

.contact-cards {
  display: grid;
  gap: 1px;
  overflow: hidden;
  border-radius: var(--radius);
  background: rgba(10, 31, 44, 0.14);
  box-shadow: var(--shadow);
  font-style: normal;
}

.contact-cards div {
  display: grid;
  gap: 6px;
  padding: 22px 24px;
  background: #ffffff;
}

.contact-cards strong {
  color: var(--accent-dark);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact-cards span,
.contact-cards a {
  color: var(--ink);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.social-section {
  background:
    linear-gradient(180deg, #101820, #071017);
  color: var(--white);
}

.social-section .section-intro h2,
.social-section .section-intro p {
  color: var(--white);
}

.social-section .section-mark {
  color: var(--accent-2);
}

.social-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.social-card {
  display: grid;
  min-height: 180px;
  place-items: center;
  gap: 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.07);
  color: var(--white);
  text-decoration: none;
  transition: transform 220ms ease, background 220ms ease, border-color 220ms ease;
}

.social-card:hover {
  border-color: rgba(120, 221, 255, 0.42);
  background: rgba(0, 169, 232, 0.12);
  transform: translateY(-4px);
}

.social-card img {
  width: 28px;
  height: 28px;
}

.social-card strong {
  display: grid;
  width: 56px;
  height: 56px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 0.92rem;
  letter-spacing: -0.04em;
}

.social-card span {
  font-weight: 760;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) minmax(220px, 0.78fr) minmax(220px, 0.7fr);
  gap: 28px;
  padding: 48px clamp(20px, 5vw, 72px);
  background: #050a0e;
  color: rgba(255, 255, 255, 0.72);
}

.compact-footer {
  grid-template-columns: minmax(260px, 1fr) minmax(220px, 0.8fr);
}

.footer-brand strong {
  display: block;
  margin-bottom: 10px;
  color: var(--white);
}

.footer-brand p,
.footer-policy {
  max-width: 620px;
  margin: 0;
  color: rgba(255, 255, 255, 0.56);
}

.footer-nav,
.footer-social {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  align-content: start;
}

.footer-nav a {
  text-decoration: none;
}

.footer-social a {
  display: inline-flex;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
}

.footer-social img {
  width: 17px;
  height: 17px;
}

.footer-social span {
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 760;
  letter-spacing: -0.02em;
}

.footer-policy {
  grid-column: 1 / -1;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 22px;
  font-size: 0.82rem;
}

.reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 760ms ease, transform 760ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.hero-section .reveal {
  opacity: 1;
  transform: none;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 1080px) {
  .hero-grid,
  .split-story,
  .product-detail,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    max-width: 620px;
    align-self: start;
    margin-bottom: 0;
  }

  .metric-grid,
  .value-grid,
  .credential-grid,
  .certificate-gallery,
  .social-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .product-block,
  .product-block.product-large,
  .product-block:nth-child(2),
  .product-block:nth-child(3) {
    grid-column: span 6;
  }

  .product-detail.reverse .product-image {
    order: initial;
  }

  .contact-primary {
    justify-self: start;
  }
}

@media (max-width: 820px) {
  :root {
    --container: min(100% - 32px, 1280px);
  }

  .site-header {
    width: calc(100% - 24px);
    min-height: 62px;
    padding: 9px 10px 9px 14px;
  }

  .brand {
    width: 148px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    top: 74px;
    right: 12px;
    left: 12px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    overflow: hidden;
    border: 1px solid rgba(10, 24, 34, 0.14);
    border-radius: 24px;
    padding: 10px;
    background: rgba(245, 249, 251, 0.97);
    color: var(--ink);
    box-shadow: 0 24px 70px rgba(4, 14, 22, 0.2);
    backdrop-filter: blur(18px);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    border-radius: 14px;
    padding: 14px 16px;
  }

  .site-nav a::after {
    content: none;
  }

  h1 {
    font-size: clamp(3.25rem, 15vw, 5.3rem);
    line-height: 0.9;
  }

  h2 {
    font-size: clamp(2.1rem, 11vw, 3.4rem);
    line-height: 0.98;
  }

  .section-pad {
    padding: 76px 16px;
  }

  .hero-grid {
    gap: 30px;
    padding-top: 112px;
    padding-bottom: 56px;
  }

  .hero-subtitle {
    font-size: 1.08rem;
  }

  .hero-actions,
  .hero-actions .btn,
  .cta-inner .btn,
  .contact-primary .btn {
    width: 100%;
  }

  .hero-actions {
    align-items: stretch;
  }

  .metric-grid,
  .value-grid,
  .credential-grid,
  .certificate-gallery,
  .social-grid,
  .model-columns {
    grid-template-columns: 1fr;
  }

  .metric-card {
    min-height: 220px;
  }

  .metric-card strong {
    margin-bottom: 44px;
  }

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

  .product-block,
  .product-block.product-large,
  .product-block:nth-child(2),
  .product-block:nth-child(3) {
    min-height: 340px;
    grid-column: auto;
  }

  .image-section {
    min-height: 620px;
  }

  .image-copy {
    width: calc(100% - 32px);
    margin: 0 auto;
  }

  .story-media,
  .story-media img,
  .product-image,
  .product-image img {
    min-height: 340px;
  }

  .inner-hero {
    min-height: 68dvh;
    padding: 126px 16px 58px;
  }

  .inner-hero h1 {
    font-size: clamp(2.65rem, 13vw, 4.2rem);
  }

  dl div,
  .timeline-item,
  .process-card {
    grid-template-columns: 1fr;
  }

  .model-panel {
    min-height: auto;
  }

  .certificate-card img {
    height: 360px;
  }

  .site-footer,
  .compact-footer {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .brand {
    width: 136px;
  }

  .hero-panel {
    padding: 20px;
  }

  .section-intro.narrow {
    text-align: left;
  }

  .btn {
    padding-right: 16px;
    padding-left: 16px;
    font-size: 0.72rem;
  }
}

/* Version 3 restoration and scale pass */
:root {
  --paper: #f7f9fb;
  --paper-deep: #edf2f5;
  --ink: #111820;
  --muted: #5d6a73;
  --line: #d9e1e7;
  --steel: #14252d;
  --steel-light: #e7f3f8;
  --accent: #05a8e8;
  --accent-deep: #0078b8;
  --accent-soft: #dff5fd;
  --white: #ffffff;
  --shadow: 0 24px 72px rgba(17, 24, 32, 0.13);
  --radius: 12px;
  --radius-sm: 8px;
  --container: min(1180px, calc(100% - 40px));
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
}

html,
body {
  background: var(--paper);
}

body {
  font-family: var(--font-sans);
  color: var(--ink);
}

h1,
h2 {
  font-family: var(--font-sans);
  font-weight: 650;
  letter-spacing: 0;
}

h1 {
  max-width: 920px;
  margin-bottom: 26px;
  font-size: clamp(3.2rem, 7.2vw, 7rem);
  line-height: 0.96;
  letter-spacing: -0.035em;
}

h2 {
  margin-bottom: 20px;
  font-size: clamp(1.95rem, 3.8vw, 3.65rem);
  line-height: 1.04;
  letter-spacing: -0.03em;
}

h3 {
  font-size: clamp(1.08rem, 1.8vw, 1.45rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
}

.section-pad {
  padding: clamp(72px, 8vw, 118px) clamp(20px, 5vw, 72px);
}

.section-shell {
  position: relative;
  z-index: 1;
  width: min(1180px, 100%);
  margin: 0 auto;
}

.site-header {
  top: 0;
  right: 0;
  left: 0;
  width: auto;
  min-height: auto;
  gap: 28px;
  border: 0;
  border-radius: 0;
  padding: 20px clamp(20px, 5vw, 72px);
  background: transparent;
  box-shadow: none;
  transform: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  transition: background 180ms ease, color 180ms ease, box-shadow 180ms ease, padding 180ms ease;
}

.site-header.is-scrolled,
.site-header.nav-active,
.site-header.site-header-solid {
  top: 0;
  border-color: transparent;
  background: rgba(247, 249, 251, 0.985);
  color: var(--ink);
  box-shadow: 0 1px 0 rgba(23, 32, 30, 0.08);
  padding-top: 12px;
  padding-bottom: 12px;
}

.brand {
  width: 216px;
  min-width: 160px;
  filter: brightness(0) invert(1);
  transition: filter 180ms ease;
}

.site-header.is-scrolled .brand,
.site-header.nav-active .brand,
.site-header.site-header-solid .brand {
  filter: none;
}

.site-nav {
  gap: clamp(18px, 2.6vw, 34px);
  font-size: 0.74rem;
  font-weight: 700;
}

.site-nav a::after {
  bottom: -7px;
  height: 1px;
  border-radius: 0;
  background: currentColor;
}

.nav-toggle {
  border-radius: 6px;
}

.nav-toggle span {
  height: 1px;
  border-radius: 0;
}

.hero {
  position: relative;
  min-height: 92vh;
  overflow: hidden;
  color: var(--white);
  background: var(--steel);
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background:
    linear-gradient(90deg, rgba(3, 7, 11, 0.16), rgba(3, 7, 11, 0.02)),
    url("assets/images/hero-electric-field-base.jpg") center / cover no-repeat,
    radial-gradient(circle at 50% 50%, #112938 0%, #071019 48%, #03070b 100%);
  pointer-events: none;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 58% 62%, rgba(5, 168, 232, 0.08), transparent 30%),
    linear-gradient(90deg, rgba(2, 5, 9, 0.9) 0%, rgba(3, 7, 11, 0.72) 42%, rgba(3, 7, 11, 0.2) 100%),
    linear-gradient(180deg, rgba(3, 7, 11, 0.34) 0%, rgba(3, 7, 11, 0.04) 48%, rgba(3, 7, 11, 0.72) 100%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 92vh;
  flex-direction: column;
  justify-content: center;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 118px 0 86px;
}

.hero-content {
  max-width: 940px;
}

.hero h1 span {
  display: block;
  white-space: nowrap;
}

.mobile-break {
  display: none;
}

.eyebrow,
.section-mark {
  display: inline-flex;
  margin: 0 0 18px;
  color: var(--accent-deep);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #7edcff;
}

.hero-copy {
  max-width: 760px;
  margin-bottom: 48px;
  color: rgba(255, 253, 248, 0.86);
  font-size: clamp(1.05rem, 1.5vw, 1.26rem);
}

.btn {
  min-height: auto;
  border-radius: 6px;
  padding: 12px 20px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.btn-primary {
  background: var(--accent);
  color: var(--white);
  box-shadow: none;
}

.btn-primary:hover {
  background: var(--accent-deep);
}

.btn-secondary {
  border-color: rgba(255, 253, 248, 0.58);
  background: transparent;
  color: var(--white);
}

.btn-secondary:hover {
  border-color: var(--white);
  background: rgba(255, 253, 248, 0.1);
}

.btn-light {
  color: var(--ink);
}

.home-products {
  background:
    linear-gradient(135deg, rgba(0, 169, 232, 0.08), transparent 34%),
    linear-gradient(180deg, #f7fafc 0%, #eef4f8 100%);
}

.product-feature-layout {
  display: grid;
  grid-template-columns: minmax(360px, 0.96fr) minmax(320px, 0.72fr);
  gap: clamp(34px, 6vw, 78px);
  align-items: center;
}

.product-feature-media {
  min-width: 0;
}

.product-feature-copy {
  max-width: 480px;
}

.product-feature-copy h2 {
  margin: 10px 0 18px;
  color: var(--ink);
  font-size: clamp(1.85rem, 3.6vw, 3.4rem);
  line-height: 1.04;
}

.product-feature-copy p {
  margin: 0;
  color: #50616e;
  font-size: 1rem;
  line-height: 1.68;
}

.product-carousel {
  position: relative;
}

.product-carousel-control {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.product-carousel-control label {
  color: #50616e;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.product-carousel-control select {
  min-width: 260px;
  border: 1px solid rgba(13, 40, 55, 0.18);
  border-radius: 8px;
  padding: 12px 42px 12px 14px;
  background: #fff;
  color: var(--steel);
  font: 800 0.9rem/1 var(--font-sans);
  box-shadow: 0 14px 34px rgba(15, 43, 58, 0.08);
}

.product-showcase {
  display: flex;
  gap: 0;
  margin: 0;
  padding: 0 0 18px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-padding: 0;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 120, 184, 0.5) rgba(13, 40, 55, 0.08);
}

.product-showcase::-webkit-scrollbar {
  height: 10px;
}

.product-showcase::-webkit-scrollbar-track {
  border-radius: 999px;
  background: rgba(13, 40, 55, 0.08);
}

.product-showcase::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(0, 120, 184, 0.5);
}

.product-tile {
  position: relative;
  flex: 0 0 100%;
  min-height: clamp(340px, 34vw, 440px);
  border: 1px solid rgba(13, 40, 55, 0.11);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 20px 50px rgba(15, 43, 58, 0.09);
  overflow: hidden;
  scroll-snap-align: start;
}

.product-tile img {
  width: 100%;
  height: 100%;
  min-height: inherit;
  object-fit: cover;
  transform: scale(1.02);
  transition: transform 420ms ease;
}

.product-tile:hover img {
  transform: scale(1.06);
}

.product-tile::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 46%;
  background: linear-gradient(180deg, rgba(5, 11, 16, 0), rgba(5, 11, 16, 0.78));
  content: "";
  pointer-events: none;
}

.product-tile > div {
  position: absolute;
  z-index: 1;
  right: 24px;
  bottom: 24px;
  left: 24px;
  color: #fff;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.58);
}

.product-tile span {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.product-tile h3 {
  margin: 8px 0 8px;
  color: #fff;
  font-size: clamp(1.28rem, 2vw, 1.8rem);
  line-height: 1.05;
}

.product-tile p {
  margin: 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.94rem;
}

.section-action {
  margin-top: 30px;
}

.section-intro {
  margin-bottom: clamp(32px, 5vw, 58px);
}

.section-intro h2,
.story-copy h2,
.image-copy h2,
.cta-inner h2,
.contact-primary h2,
.product-info h2,
.inner-hero h1 {
  color: var(--ink);
}

.metric-card {
  min-height: 240px;
}

.metric-card strong {
  margin-bottom: clamp(34px, 5vw, 68px);
  font-size: clamp(1.8rem, 3.4vw, 3.8rem);
}

.manufacturing-band {
  background:
    linear-gradient(90deg, rgba(8, 14, 19, 0.82), rgba(8, 14, 19, 0.32) 66%, rgba(8, 14, 19, 0.08)),
    url("assets/images/people/engineering-review-factory.jpg") center / cover no-repeat;
}

.image-section {
  min-height: clamp(520px, 64vw, 640px);
}

.story-media,
.story-media img,
.product-image,
.product-image img {
  min-height: clamp(360px, 42vw, 480px);
}

.story-media img,
.product-image img {
  height: 100%;
  object-fit: cover;
}

.partner-visual {
  width: min(1180px, 100%);
  margin: 0 auto clamp(28px, 5vw, 48px);
  overflow: hidden;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.partner-visual img {
  width: 100%;
  height: clamp(300px, 42vw, 500px);
  object-fit: cover;
  object-position: center;
}

.cooperation-image {
  background:
    linear-gradient(90deg, rgba(8, 14, 19, 0.84), rgba(8, 14, 19, 0.38) 62%, rgba(8, 14, 19, 0.1)),
    url("assets/images/people/cooperation-engineers-handshake.jpg") center / cover no-repeat;
}

.inner-hero {
  min-height: 54vh;
  padding-top: 140px;
}

.inner-hero h1 {
  font-size: clamp(2.25rem, 4.6vw, 4.65rem);
  line-height: 1;
}

.product-info h2 {
  font-size: clamp(1.65rem, 3.2vw, 3rem);
}

.certificate-card img {
  height: 380px;
}

@media (prefers-reduced-motion: reduce) {
  .hero-canvas {
    background:
      linear-gradient(90deg, rgba(3, 7, 11, 0.2), rgba(3, 7, 11, 0.04)),
      url("assets/images/hero-electric-field-base.jpg") center / cover no-repeat,
      radial-gradient(circle at 50% 50%, #102a38 0%, #071019 48%, #03070b 100%);
  }
}

@media (max-width: 980px) {
  .brand {
    width: 188px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    top: 69px;
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 0 clamp(20px, 5vw, 72px) 18px;
    background: rgba(247, 249, 251, 0.985);
    color: var(--ink);
    box-shadow: 0 16px 40px rgba(14, 28, 39, 0.12);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    width: 100%;
    border-bottom: 1px solid var(--line);
    padding: 16px 0;
  }

  .site-nav a::after {
    content: none;
  }

  .hero,
  .hero-inner {
    min-height: 88vh;
  }

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

  .product-feature-copy {
    max-width: 680px;
    order: -1;
  }

  .metric-grid,
  .value-grid,
  .credential-grid,
  .certificate-gallery,
  .social-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .site-header {
    padding-right: 16px;
    padding-left: 16px;
  }

  .brand {
    width: 160px;
  }

  .hero-inner {
    width: calc(100% - 32px);
    padding-top: 102px;
    padding-bottom: 58px;
  }

  .hero .eyebrow {
    max-width: 100%;
    display: block;
    font-size: 0.6rem;
    line-height: 1.55;
    white-space: normal;
  }

  .hero h1 {
    max-width: none;
    font-size: clamp(2rem, 9.5vw, 2.25rem);
    letter-spacing: -0.045em;
  }

  .hero-content,
  .hero-copy,
  .hero-actions {
    width: calc(100vw - 32px);
    max-width: calc(100vw - 32px);
  }

  .hero-copy {
    overflow-wrap: break-word;
    font-size: 0.98rem;
    line-height: 1.55;
  }

  .desktop-space {
    display: none;
  }

  .mobile-break {
    display: block;
  }

  h1 {
    font-size: clamp(2.42rem, 13vw, 3.8rem);
  }

  h2 {
    font-size: clamp(1.72rem, 7vw, 2.35rem);
    line-height: 1.08;
  }

  .section-pad {
    padding: 64px 16px;
  }

  .hero-actions,
  .hero-actions .btn,
  .cta-inner .btn,
  .contact-primary .btn {
    width: 100%;
  }

  .product-carousel-control {
    align-items: stretch;
    flex-direction: column;
  }

  .product-carousel-control select {
    width: 100%;
    min-width: 0;
  }

  .product-tile {
    min-height: 340px;
  }

  .metric-grid,
  .value-grid,
  .credential-grid,
  .certificate-gallery,
  .social-grid,
  .model-columns {
    grid-template-columns: 1fr;
  }

  .inner-hero {
    min-height: auto;
    padding: 118px 16px 54px;
  }

  .inner-hero h1 {
    font-size: clamp(2rem, 9vw, 2.8rem);
    line-height: 1.04;
  }

  .certificate-card img {
    height: 340px;
  }
}

/* Version 3.1 final iteration */
:root {
  --v31-surface: #f8fafc;
  --v31-surface-strong: #eef4f7;
  --v31-ink: #111820;
  --v31-muted: #5d6a73;
  --v31-line: rgba(20, 37, 45, 0.13);
  --v31-accent: #05a8e8;
  --v31-accent-deep: #0078b8;
  --v31-orange: #f58220;
}

h1,
h2,
h3,
.hero h1,
.inner-hero h1,
.product-info h2,
.section-intro h2,
.v31-section-head h2,
.cta-inner h2 {
  letter-spacing: 0;
  text-wrap: balance;
}

h1,
.hero h1 {
  font-size: 4.9rem;
  line-height: 1;
}

h2,
.inner-hero h1,
.v31-section-head h2,
.section-intro h2,
.story-copy h2,
.cta-inner h2,
.contact-primary h2,
.product-info h2 {
  font-size: 2.75rem;
  line-height: 1.08;
}

h3 {
  font-size: 1.35rem;
  line-height: 1.2;
}

.page-main {
  background: var(--v31-surface);
}

.hero {
  min-height: 88vh;
}

.hero-inner {
  min-height: 88vh;
  padding-top: 112px;
  padding-bottom: 72px;
}

.hero-copy {
  max-width: 700px;
}

.section-pad {
  padding-top: 92px;
  padding-bottom: 92px;
}

.v31-section-head {
  width: min(760px, 100%);
  margin: 0 auto 34px;
}

.v31-section-head.center,
.center-action {
  text-align: center;
}

.v31-section-head p,
.section-intro p,
.inner-hero-copy p,
.story-copy p,
.product-info p,
.cta-inner p,
.legal-copy p {
  color: var(--v31-muted);
  font-size: 1rem;
  line-height: 1.72;
}

.inner-hero .section-mark {
  color: #7edcff;
}

.inner-hero h1,
.inner-hero-copy p {
  color: #fff;
}

.v31-snapshot {
  display: grid;
  width: min(1180px, calc(100% - 40px));
  grid-template-columns: minmax(340px, 0.78fr) minmax(440px, 1fr);
  gap: clamp(34px, 6vw, 76px);
  align-items: start;
  margin: 0 auto;
}

.v31-snapshot-copy h2 {
  max-width: 520px;
}

.fact-list {
  display: grid;
  gap: 12px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
}

.fact-list li {
  display: grid;
  grid-template-columns: 138px minmax(0, 1fr);
  gap: 18px;
  border-top: 1px solid var(--v31-line);
  padding-top: 12px;
}

.fact-list strong {
  color: var(--v31-ink);
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}

.fact-list span {
  color: var(--v31-muted);
}

.text-link {
  color: var(--v31-accent-deep);
  font-weight: 800;
  text-decoration: none;
}

.v31-snapshot-media {
  margin: 0;
  overflow: hidden;
  border-radius: 8px;
  background: #dce8ee;
  box-shadow: var(--shadow);
}

.v31-snapshot-media img {
  width: 100%;
  aspect-ratio: 5 / 4;
  object-fit: cover;
}

.v31-snapshot-media figcaption {
  display: none;
}

.v31-products {
  background: linear-gradient(180deg, #eef4f7 0%, #f8fafc 100%);
}

.v31-product-grid {
  display: grid;
  width: min(1180px, calc(100% - 40px));
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin: 0 auto;
}

.v31-product-card {
  position: relative;
  min-height: 360px;
  overflow: hidden;
  border-radius: 8px;
  background: #dce8ee;
  color: #fff;
  text-decoration: none;
  box-shadow: 0 20px 54px rgba(17, 24, 32, 0.12);
}

.v31-product-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.02);
  transition: transform 360ms ease;
}

.v31-product-card::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(2, 5, 9, 0.08), rgba(2, 5, 9, 0.72));
  content: "";
}

.v31-product-card span {
  position: absolute;
  z-index: 1;
  right: 18px;
  bottom: 18px;
  left: 18px;
  color: #fff;
  font-size: 1.15rem;
  font-weight: 800;
  line-height: 1.16;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.46);
}

.v31-product-card:hover img {
  transform: scale(1.07);
}

.v31-right-action {
  display: flex;
  width: min(1180px, calc(100% - 40px));
  justify-content: flex-end;
  margin: 28px auto 0;
}

.text-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--v31-accent-deep);
  font-size: 0.86rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}

.text-button::after {
  content: "->";
  font-size: 1rem;
  letter-spacing: 0;
  transition: transform 160ms ease;
}

.text-button:hover::after {
  transform: translateX(4px);
}

.v31-manufacturing {
  display: flex;
  width: min(1180px, calc(100% - 40px));
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  margin: 42px auto;
  border: 1px solid rgba(245, 130, 32, 0.22);
  border-radius: 8px;
  padding: 26px 30px;
  background: #fff7ee;
  box-shadow: 0 16px 42px rgba(55, 35, 20, 0.08);
}

.v31-manufacturing span {
  display: block;
  margin-bottom: 6px;
  color: var(--v31-orange);
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
}

.v31-manufacturing h2 {
  margin-bottom: 6px;
  color: var(--v31-orange);
  font-size: 1.65rem;
}

.v31-manufacturing p {
  max-width: 620px;
  margin-bottom: 0;
  color: #6b5b4d;
}

.v31-footprint {
  background: #ffffff;
}

.map-panel {
  position: relative;
  width: min(980px, calc(100% - 40px));
  margin: 0 auto;
  border: 1px solid var(--v31-line);
  border-radius: 8px;
  padding: clamp(18px, 3vw, 34px);
  background: #f7fbfd;
}

.map-panel img {
  width: 100%;
  opacity: 0.94;
}

.map-dot,
.map-callout {
  position: absolute;
  transform: translate(-50%, -50%);
}

.map-dot {
  width: 16px;
  height: 16px;
  border-radius: 999px;
}

.map-dot::after {
  position: absolute;
  inset: -8px;
  border: 1px solid currentColor;
  border-radius: inherit;
  content: "";
  opacity: 0.32;
}

.map-dot.primary {
  width: 20px;
  height: 20px;
  background: #e53935;
  color: #e53935;
}

.map-dot.secondary {
  background: #f6c945;
  color: #f6c945;
}

.map-dot.open {
  background: #18a558;
  color: #18a558;
}

.map-callout {
  --pin: #0b74b8;
  display: inline-flex;
  z-index: 2;
  align-items: center;
  gap: 8px;
  color: #243644;
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.map-callout i {
  position: relative;
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-radius: 999px;
  background: var(--pin);
  box-shadow: 0 0 0 5px rgba(255, 255, 255, 0.76), 0 0 0 6px color-mix(in srgb, var(--pin) 30%, transparent);
}

.map-callout b {
  border: 1px solid rgba(36, 54, 68, 0.16);
  border-radius: 999px;
  padding: 5px 8px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 8px 22px rgba(17, 24, 32, 0.08);
}

.map-callout.align-left b {
  order: -1;
}

.map-callout.align-left::after,
.map-callout.align-right::after {
  width: 24px;
  height: 1px;
  background: color-mix(in srgb, var(--pin) 42%, transparent);
  content: "";
}

.map-callout.align-left::after {
  order: 1;
}

.map-callout.align-right::after {
  order: -1;
}

.map-callout.primary {
  --pin: #d84848;
}

.map-callout.secondary {
  --pin: #d0a628;
}

.map-callout.open {
  --pin: #1a9b69;
}

.map-callout.compact b {
  padding-right: 7px;
  padding-left: 7px;
}

.map-legend {
  display: grid;
  width: min(980px, calc(100% - 40px));
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 22px auto 0;
}

.map-legend span {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--v31-muted);
  font-size: 0.92rem;
  line-height: 1.45;
}

.map-legend i {
  width: 12px;
  height: 12px;
  flex: 0 0 auto;
  margin-top: 4px;
  border-radius: 999px;
}

.map-legend .primary {
  background: #e53935;
}

.map-legend .secondary {
  background: #f6c945;
}

.map-legend .open {
  background: #18a558;
}

.v31-cooperate {
  background: linear-gradient(180deg, #14252d 0%, #0f1d24 100%);
  color: #fff;
}

.v31-cooperate .v31-section-head {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.v31-cooperate .section-mark,
.v31-cooperate h2 {
  color: #fff;
}

.v31-cooperate .v31-section-head p {
  color: rgba(255, 255, 255, 0.74);
}

.v31-advantage-grid {
  display: grid;
  width: min(1180px, calc(100% - 40px));
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin: 0 auto 28px;
}

.v31-advantage-grid article {
  min-height: 188px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 8px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.06);
}

.v31-advantage-grid strong {
  display: block;
  margin-bottom: 12px;
  color: #fff;
  font-size: 1.02rem;
}

.v31-advantage-grid span {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.92rem;
  line-height: 1.58;
}

.certificate-strip {
  background: var(--v31-surface-strong);
}

.certificate-strip .v31-section-head h2 {
  color: var(--v31-ink);
}

.certificate-strip .v31-section-head p {
  color: var(--v31-muted);
}

.home-contact-cta {
  border-top: 1px solid var(--v31-line);
  padding-top: 34px;
  padding-bottom: 34px;
  background: #f8fafc;
  color: var(--v31-ink);
}

.home-contact-banner {
  display: flex;
  width: min(980px, calc(100% - 40px));
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin: 0 auto;
  border: 1px solid var(--v31-line);
  border-radius: 8px;
  padding: 18px 22px;
  background: #fff;
}

.home-contact-banner span {
  color: var(--v31-muted);
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.home-contact-banner a {
  color: var(--v31-accent-deep);
  font-size: 1.02rem;
  font-weight: 900;
  line-height: 1.25;
  text-align: right;
  text-decoration: none;
}

.logo-marquee {
  overflow: hidden;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.logo-marquee .cert-track {
  display: flex;
  width: max-content;
  gap: 18px;
  animation: certMarquee 32s linear infinite;
}

.logo-marquee span,
.cert-logo-grid span {
  display: grid;
  width: 180px;
  min-width: 180px;
  height: 104px;
  place-items: center;
  border: 1px solid var(--v31-line);
  border-radius: 8px;
  padding: 10px 14px;
  background: #fff;
}

.logo-marquee img,
.cert-logo-grid img {
  max-width: 92%;
  max-height: 82%;
  object-fit: contain;
}

@keyframes certMarquee {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(calc(-50% - 9px));
  }
}

.cert-logo-grid {
  display: grid;
  width: min(980px, calc(100% - 40px));
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  margin: 0 auto;
}

.cert-logo-grid span {
  width: auto;
  min-width: 0;
}

.certificate-gallery {
  align-items: start;
  background: #fff;
}

.certificate-gallery .section-intro {
  grid-column: 1 / -1;
}

.certificate-card {
  border-radius: 8px;
  background: #fff;
}

.certificate-card h3 {
  margin: 14px 0 0;
  color: var(--v31-ink);
  font-size: 1rem;
  line-height: 1.25;
}

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

.compact-top {
  padding-top: 0;
}

.v31-footer {
  display: grid;
  grid-template-columns: minmax(240px, 1.2fr) minmax(180px, 0.8fr) minmax(260px, 1fr);
  gap: 28px 52px;
  align-items: start;
  padding: 44px clamp(20px, 5vw, 72px) 26px;
  background: #101820;
  color: #fff;
}

.v31-footer .footer-brand img {
  width: 190px;
  margin-bottom: 14px;
  filter: brightness(0) invert(1);
}

.v31-footer .footer-brand p,
.v31-footer .footer-contact span,
.v31-footer .footer-contact a,
.v31-footer .footer-policy {
  color: rgba(255, 255, 255, 0.68);
}

.v31-footer .footer-nav,
.v31-footer .footer-legal {
  display: grid;
  gap: 9px;
}

.v31-footer a {
  color: inherit;
  text-decoration: none;
}

.v31-footer .footer-contact {
  display: grid;
  gap: 8px;
  font-style: normal;
}

.v31-footer .footer-legal {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.13);
  padding-top: 20px;
}

.v31-footer .footer-policy {
  grid-column: 1 / -1;
  max-width: 920px;
  margin: 0;
  font-size: 0.82rem;
}

.legal-content {
  background: #fff;
}

.legal-copy {
  width: min(820px, calc(100% - 40px));
  margin: 0 auto;
}

@media (max-width: 1080px) {
  h1,
  .hero h1 {
    font-size: 4.1rem;
  }

  h2,
  .inner-hero h1,
  .v31-section-head h2,
  .section-intro h2,
  .story-copy h2,
  .cta-inner h2,
  .contact-primary h2,
  .product-info h2 {
    font-size: 2.35rem;
  }

  .v31-product-grid,
  .v31-advantage-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .v31-snapshot {
    grid-template-columns: 1fr;
  }

  .v31-snapshot-media {
    order: -1;
  }

  .map-legend,
  .model-columns.three,
  .v31-footer {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  h1,
  .hero h1 {
    font-size: 2.55rem;
  }

  h2,
  .inner-hero h1,
  .v31-section-head h2,
  .section-intro h2,
  .story-copy h2,
  .cta-inner h2,
  .contact-primary h2,
  .product-info h2 {
    font-size: 1.85rem;
  }

  .section-pad {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .v31-snapshot,
  .v31-product-grid,
  .v31-right-action,
  .v31-manufacturing,
  .v31-advantage-grid,
  .map-panel,
  .map-legend,
  .cert-logo-grid,
  .logo-marquee,
  .legal-copy {
    width: calc(100% - 32px);
  }

  .fact-list li,
  .v31-product-grid,
  .v31-advantage-grid,
  .cert-logo-grid {
    grid-template-columns: 1fr;
  }

  .v31-product-card {
    min-height: 310px;
  }

  .v31-right-action,
  .v31-manufacturing {
    display: grid;
  }

  .v31-manufacturing {
    padding: 22px;
  }

  .v31-manufacturing .btn {
    width: 100%;
  }

  .map-panel {
    padding: 12px;
  }

  .map-dot.primary {
    width: 16px;
    height: 16px;
  }

  .map-dot {
    width: 13px;
    height: 13px;
  }

  .map-callout {
    font-size: 0.58rem;
    gap: 5px;
  }

  .map-callout i {
    width: 6px;
    height: 6px;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.78);
  }

  .map-callout b {
    padding: 3px 5px;
  }

  .map-callout.align-left::after,
  .map-callout.align-right::after {
    width: 10px;
  }

  .home-contact-banner {
    display: grid;
    width: calc(100% - 32px);
    padding: 16px;
  }

  .home-contact-banner a {
    text-align: left;
  }

  .logo-marquee span {
    width: 150px;
    min-width: 150px;
    height: 82px;
  }
}