:root {
  --color-primary: #222546;
  --color-primary-deep: #10152b;
  --color-secondary: #f7921d;
  --color-bg: #f7f8fa;
  --color-surface: #fbfcfe;
  --color-text: #1f2430;
  --color-muted: #687080;
  --color-line: #e2e6ee;
  --shadow-soft: 0 18px 55px rgba(20, 24, 45, 0.08);
  --font-sans: "Noto Sans SC", Arial, sans-serif;
  --font-serif: "Noto Serif SC", Georgia, serif;
  --section-pad: clamp(4.5rem, 8vw, 7.5rem);
  --shell: 1180px;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 7.5rem;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: clamp(0.98rem, 0.45vw + 0.88rem, 1.06rem);
  line-height: 1.65;
}

img {
  display: block;
  width: 100%;
  height: auto;
}

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

button,
input,
textarea {
  font: inherit;
}

.page-shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2rem);
}

.site-header {
  position: fixed;
  top: 0.85rem;
  left: clamp(0.85rem, 2vw, 1.5rem);
  right: clamp(0.85rem, 2vw, 1.5rem);
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(210px, 280px) 1fr auto;
  align-items: center;
  gap: clamp(1rem, 3vw, 2rem);
  width: auto;
  padding: 0.85rem clamp(1.25rem, 5vw, 4.5rem);
  color: #f6f8ff;
  background: rgba(8, 13, 31, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 0.85rem;
  backdrop-filter: blur(14px);
  box-shadow: 0 18px 58px rgba(5, 9, 24, 0.16);
  transition: transform 240ms ease, background 240ms ease, box-shadow 240ms ease, border-color 240ms ease;
}

.site-header.is-scrolled {
  background: rgba(8, 13, 31, 0.88);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 22px 72px rgba(5, 9, 24, 0.26);
}

.brand img {
  width: clamp(12rem, 18vw, 16.75rem);
  max-height: 4.3rem;
  object-fit: contain;
}

.main-nav {
  display: flex;
  justify-content: center;
  gap: clamp(1.25rem, 3vw, 3rem);
  font-size: clamp(0.82rem, 0.95vw, 0.95rem);
  white-space: nowrap;
}

.main-nav a {
  position: relative;
  opacity: 0.9;
  transition: color 180ms ease, opacity 180ms ease;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.55rem;
  height: 2px;
  border-radius: 999px;
  background: var(--color-secondary);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 220ms ease;
}

.main-nav a:hover,
.main-nav a.is-active {
  color: var(--color-secondary);
  opacity: 1;
}

.main-nav a.is-active::after {
  transform: scaleX(1);
}

.lang-toggle,
.slider-buttons button {
  min-width: 44px;
  min-height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  min-width: 5.4rem;
  min-height: 2.45rem;
  padding: 0.22rem 0.3rem;
  color: rgba(255, 255, 255, 0.86);
  border-color: rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.055);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.lang-toggle:hover {
  border-color: rgba(247, 146, 29, 0.72);
  background: rgba(255, 255, 255, 0.09);
}

.lang-option {
  display: inline-grid;
  place-items: center;
  min-width: 2.1rem;
  min-height: 1.75rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0;
}

.lang-option.is-active {
  color: #10152b;
  background: var(--color-secondary);
}

.lang-toggle:active,
.slider-buttons button:active,
.btn:active {
  transform: translateY(1px);
}

.hero {
  position: relative;
  min-height: 830px;
  color: #fff;
  background: var(--color-primary-deep);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(6, 12, 28, 0.72) 0%, rgba(9, 16, 35, 0.28) 50%, rgba(9, 16, 35, 0.12) 100%),
    url("../images/02-hero-bg-image2.webp") center / cover no-repeat;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 74% 32%, rgba(247, 146, 29, 0.18), transparent 32%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.96fr) minmax(20rem, 1.04fr);
  align-items: center;
  min-height: 755px;
  padding-top: 8rem;
  padding-bottom: 2.25rem;
}

.hero-copy {
  max-width: 46rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 1rem;
  color: var(--color-secondary);
  font-weight: 800;
  font-size: clamp(0.86rem, 1vw, 1rem);
}

.eyebrow::before {
  content: "";
  width: 2.4rem;
  height: 3px;
  background: currentColor;
}

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

h1 {
  margin-bottom: 1.35rem;
  font-size: clamp(2.8rem, 4.8vw, 4.9rem);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: 0;
}

.hero-copy h1 {
  max-width: 46rem;
  margin-bottom: 1.35rem;
  color: #fff;
  font-size: clamp(3.25rem, 5vw, 5.05rem) !important;
  line-height: 1.06 !important;
  font-weight: 800 !important;
  letter-spacing: 0;
}

.section-copy h2,
.section-heading h2,
.contact-info h2 {
  margin-bottom: 1rem;
  color: var(--color-primary);
  font-size: clamp(2rem, 2.8vw, 2.8rem) !important;
  line-height: 1.14 !important;
  font-weight: 800 !important;
  letter-spacing: 0;
}

.product-card h3 {
  margin-bottom: 0.7rem;
  color: var(--color-primary);
  font-size: clamp(1.12rem, 1.25vw, 1.38rem) !important;
  line-height: 1.22 !important;
  font-weight: 800 !important;
  letter-spacing: 0;
}

.inner-grid h2 {
  margin-bottom: 1.1rem;
  color: var(--color-primary);
  font-size: clamp(1.85rem, 2.55vw, 2.65rem) !important;
  line-height: 1.14 !important;
  font-weight: 800 !important;
}

h2 {
  margin-bottom: 1rem;
  color: var(--color-primary);
  font-size: clamp(1.85rem, 2.55vw, 2.65rem);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: 0;
}

h3 {
  color: var(--color-primary);
  font-size: clamp(1.08rem, 1.18vw, 1.32rem);
  line-height: 1.25;
  font-weight: 800;
}

.hero-lead {
  max-width: 42rem;
  margin-bottom: 1.85rem;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(1rem, 1vw, 1.12rem);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn,
.outline-link,
.text-link,
.product-card a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  border-radius: 0.5rem;
  font-weight: 800;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.btn-primary {
  padding: 0.85rem 2.1rem;
  color: #fff;
  background: var(--color-secondary);
}

.btn-primary:hover {
  background: #e47d0d;
}

.btn-secondary {
  padding: 0.85rem 2.1rem;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.06);
}

.btn-secondary:hover {
  border-color: var(--color-secondary);
}

.hero-machine {
  display: none;
  align-self: end;
  justify-self: end;
  width: min(58vw, 760px);
  margin-right: clamp(-6rem, -4vw, -2rem);
  margin-bottom: -0.7rem;
  padding-left: 0;
}

.hero-machine img {
  max-height: 720px;
  object-fit: contain;
  filter: drop-shadow(0 28px 42px rgba(0, 0, 0, 0.34));
}

.hero-proof {
  position: relative;
  z-index: 2;
  background: linear-gradient(90deg, #0b1534, #101b3c 52%, #09152f);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  padding-top: 2rem;
  padding-bottom: 2rem;
}

.proof-grid article {
  min-width: 0;
  padding: 0 2.4rem;
  border-left: 1px solid rgba(255, 255, 255, 0.2);
}

.proof-grid article:first-child {
  border-left: 0;
}

.proof-grid strong {
  display: block;
  color: var(--color-secondary);
  font-size: clamp(1.55rem, 2vw, 2.15rem);
  line-height: 1;
}

.proof-grid span {
  display: block;
  max-width: 13rem;
  margin-top: 0.65rem;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(0.84rem, 0.92vw, 0.94rem);
  line-height: 1.4;
}

.video-section,
.products,
.factory,
.applications {
  padding: var(--section-pad) 0;
}

.video-section {
  background: linear-gradient(115deg, #fbfcfe 0%, #f0f3f7 100%);
}

.products {
  background: #f8fafc;
}

.video-grid {
  display: grid;
  grid-template-columns: minmax(16rem, 0.72fr) minmax(22rem, 1.28fr);
  align-items: center;
  gap: clamp(2rem, 7vw, 7rem);
}

.section-copy p,
.section-heading p {
  max-width: 32rem;
  color: var(--color-muted);
}

.outline-link {
  margin-top: 1.5rem;
  padding: 0 1.35rem;
  color: var(--color-secondary);
  border: 1px solid var(--color-secondary);
  background: transparent;
}

.outline-link:hover {
  color: #fff;
  background: var(--color-secondary);
}

.video-frame {
  position: relative;
  overflow: hidden;
  border: 8px solid #111827;
  border-radius: 0.5rem;
  background: #111827;
  box-shadow: var(--shadow-soft);
}

.video-frame img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform 620ms ease, filter 620ms ease;
}

.video-frame:hover img {
  transform: scale(1.035);
  filter: saturate(1.04) contrast(1.03);
}

.video-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0, 0, 0, 0.55));
  pointer-events: none;
}

.play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 1;
  display: grid;
  place-items: center;
  width: clamp(4rem, 7vw, 5.8rem);
  aspect-ratio: 1;
  border: 0;
  border-radius: 999px;
  color: #fff;
  background: var(--color-secondary);
  box-shadow: 0 16px 45px rgba(247, 146, 29, 0.34);
  transform: translate(-50%, -50%);
  cursor: pointer;
}

.play-button i {
  margin-left: 0.3rem;
  font-size: clamp(2rem, 4vw, 3rem);
}

.video-controls {
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: #fff;
  font-size: 0.9rem;
}

.video-controls i:nth-last-child(2) {
  margin-left: auto;
}

.section-heading {
  margin-bottom: clamp(1.5rem, 3vw, 2.3rem);
}

.section-heading.compact {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1.5rem, 3vw, 2.4rem);
}

.product-card {
  display: flex;
  flex-direction: column;
  min-height: 28rem;
  padding: clamp(1.3rem, 2vw, 1.75rem);
  border: 1px solid var(--color-line);
  border-radius: 0.5rem;
  background: var(--color-surface);
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.product-card:hover {
  transform: translateY(-3px);
  border-color: rgba(247, 146, 29, 0.48);
  box-shadow: var(--shadow-soft);
}

.product-card img {
  height: clamp(11rem, 18vw, 15rem);
  margin-bottom: 1.4rem;
  object-fit: contain;
  transition: transform 560ms ease, filter 560ms ease;
}

.product-card:hover img {
  transform: scale(1.035);
  filter: saturate(1.04) contrast(1.03);
}

.product-card p {
  color: var(--color-muted);
  font-size: clamp(0.92rem, 0.9vw, 0.98rem);
  line-height: 1.58;
}

.product-card a,
.text-link {
  justify-content: flex-start;
  min-height: auto;
  margin-top: auto;
  color: var(--color-secondary);
  font-size: clamp(0.9rem, 0.9vw, 0.96rem);
}

.product-card a,
.text-link {
  gap: 0.35rem;
}

.factory {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 18%, rgba(247, 146, 29, 0.12), transparent 24%),
    linear-gradient(135deg, #f7f9fc 0%, #e9eef5 55%, #f4f6fa 100%);
}

.factory::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(34, 37, 70, 0.045) 1px, transparent 1px),
    linear-gradient(180deg, rgba(34, 37, 70, 0.035) 1px, transparent 1px);
  background-size: 96px 96px;
  mask-image: linear-gradient(180deg, transparent 0%, #000 18%, #000 82%, transparent 100%);
  pointer-events: none;
}

.factory .page-shell {
  position: relative;
  z-index: 1;
}

.slider-buttons {
  display: inline-flex;
  gap: 0.55rem;
}

.slider-buttons button {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  min-width: 2rem;
  min-height: 2rem;
  color: var(--color-primary);
  border-color: #cfd5df;
  background: transparent;
}

.factory-gallery {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-auto-rows: clamp(7.6rem, 10vw, 10.5rem);
  gap: clamp(0.9rem, 1.4vw, 1.25rem);
  align-items: stretch;
}

.factory-gallery figure {
  position: relative;
  overflow: hidden;
  margin: 0;
  border: 1px solid rgba(194, 204, 218, 0.82);
  border-radius: 0.5rem;
  background: #dfe5ed;
  box-shadow: 0 20px 60px rgba(20, 28, 48, 0.08);
}

.factory-gallery figure:nth-child(1) {
  grid-column: 1 / span 5;
  grid-row: span 2;
}

.factory-gallery figure:nth-child(2) {
  grid-column: 6 / span 4;
  grid-row: span 2;
}

.factory-gallery figure:nth-child(3) {
  grid-column: 10 / span 3;
  grid-row: span 1;
}

.factory-gallery figure:nth-child(4) {
  grid-column: 10 / span 3;
  grid-row: span 1;
}

.factory-gallery img {
  height: 100%;
  object-fit: cover;
  transition: transform 550ms ease, filter 550ms ease;
}

.factory-gallery figure:hover img {
  transform: scale(1.045);
  filter: saturate(1.05) contrast(1.03);
}

.factory-gallery figcaption {
  position: absolute;
  left: 0.85rem;
  bottom: 0.8rem;
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  color: #fff;
  background: rgba(10, 18, 42, 0.72);
  backdrop-filter: blur(8px);
  font-size: clamp(0.76rem, 0.85vw, 0.86rem);
  font-weight: 800;
  line-height: 1;
}

.text-link {
  margin-top: 1rem;
}

.applications {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 20%, rgba(247, 146, 29, 0.1), transparent 26%),
    linear-gradient(135deg, #f8fafc 0%, #eef3f8 54%, #f6f8fb 100%);
}

.applications::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, transparent 0 45%, rgba(34, 37, 70, 0.04) 45% 45.4%, transparent 45.4% 100%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.82), transparent 42%);
  pointer-events: none;
}

.applications .page-shell {
  position: relative;
  z-index: 1;
}

.application-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(1rem, 1.7vw, 1.45rem);
}

.application-card {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
  border: 1px solid rgba(205, 214, 226, 0.88);
  border-radius: 0.65rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(246, 249, 253, 0.94));
  box-shadow: 0 20px 55px rgba(20, 28, 48, 0.08);
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.application-card:nth-child(1),
.application-card:nth-child(2) {
  grid-column: span 6;
}

.application-card:nth-child(3) {
  grid-column: span 5;
}

.application-card:nth-child(4) {
  grid-column: span 7;
}

.application-card:hover {
  transform: translateY(-3px);
  border-color: rgba(247, 146, 29, 0.42);
  box-shadow: 0 28px 76px rgba(20, 28, 48, 0.13);
}

.application-card img {
  width: 100%;
  height: clamp(14rem, 20vw, 18.5rem);
  object-fit: cover;
  transition: transform 520ms ease, filter 520ms ease;
}

.application-card:hover img {
  transform: scale(1.035);
  filter: saturate(1.03) contrast(1.02);
}

.application-card div {
  display: grid;
  gap: 0.75rem;
  padding: clamp(1.15rem, 1.8vw, 1.65rem);
}

.application-card span {
  color: var(--color-secondary);
  font-size: clamp(0.78rem, 0.78vw, 0.86rem);
  font-weight: 800;
  line-height: 1;
}

.application-card h3 {
  color: var(--color-primary);
  font-size: clamp(1.24rem, 1.6vw, 1.65rem);
  font-weight: 800;
  line-height: 1.14;
}

.application-card p {
  max-width: 38rem;
  color: var(--color-muted);
  font-size: clamp(0.94rem, 0.92vw, 1rem);
  line-height: 1.58;
}

.contact {
  padding: clamp(4rem, 7vw, 6rem) 0;
  color: #fff;
  background:
    radial-gradient(circle at 70% 20%, rgba(247, 146, 29, 0.14), transparent 28%),
    linear-gradient(135deg, #0a1431 0%, var(--color-primary) 100%);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(18rem, 0.72fr) minmax(24rem, 1.28fr);
  gap: clamp(2rem, 7vw, 6.5rem);
}

.contact h2 {
  color: #fff;
}

.contact-info h2 {
  max-width: 36rem;
  color: #fff;
}

.contact-kicker {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  margin-bottom: 1rem;
  padding-left: 1.25rem;
  position: relative;
  color: var(--color-secondary);
  font-size: clamp(0.86rem, 0.95vw, 0.98rem);
  font-weight: 800;
}

.contact-kicker::before {
  content: "";
  position: absolute;
  left: 0;
  width: 0.72rem;
  height: 2px;
  background: var(--color-secondary);
}

.contact-lead {
  max-width: 35rem;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(1rem, 1.15vw, 1.12rem);
  line-height: 1.65;
}

.contact-points {
  display: grid;
  gap: 0.8rem;
  margin-top: clamp(1.4rem, 2vw, 2rem);
}

.contact-points div {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  gap: 0.85rem;
  align-items: center;
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(0.95rem, 1vw, 1.05rem);
  line-height: 1.45;
}

.contact-points i {
  display: grid;
  place-items: center;
  width: 2.2rem;
  height: 2.2rem;
  border: 1px solid rgba(247, 146, 29, 0.36);
  border-radius: 999px;
  color: var(--color-secondary);
  background: rgba(247, 146, 29, 0.08);
  font-size: 1.15rem;
}

.contact-note {
  max-width: 32rem;
  margin-top: clamp(1.5rem, 2.2vw, 2.25rem);
  padding: 1rem 1.15rem;
  border-left: 3px solid var(--color-secondary);
  color: rgba(255, 255, 255, 0.84);
  background: rgba(255, 255, 255, 0.07);
  font-size: clamp(0.92rem, 1vw, 1rem);
  line-height: 1.55;
}

.lead-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.lead-form label {
  display: grid;
  gap: 0.45rem;
}

.lead-form span {
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.85rem;
}

.lead-form input,
.lead-form textarea {
  width: 100%;
  min-height: 3.35rem;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 0.45rem;
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  outline: none;
  padding: 0.8rem 1rem;
  transition: border-color 180ms ease, background 180ms ease;
}

.lead-form textarea {
  min-height: 8.5rem;
  resize: vertical;
}

.lead-form input:focus,
.lead-form textarea:focus {
  border-color: var(--color-secondary);
  background: rgba(255, 255, 255, 0.12);
}

.lead-form .full {
  grid-column: 1 / -1;
}

.lead-form .btn {
  justify-self: start;
  border: 0;
  cursor: pointer;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms ease, transform 600ms ease;
}

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

@media (max-width: 960px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .main-nav {
    grid-column: 1 / -1;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 0.25rem;
  }

  .hero-grid,
  .video-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    min-height: auto;
    padding-top: 9rem;
    padding-bottom: 2rem;
  }

  .hero-copy h1 {
    max-width: 40rem;
    font-size: clamp(3rem, 7vw, 4.35rem) !important;
    line-height: 1.08 !important;
  }

  .hero-machine {
    width: 100%;
    margin-right: 0;
    margin-bottom: 0;
    padding-left: 0;
  }

  .hero-machine img {
    max-height: 420px;
    margin: 0 auto;
  }

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

  .factory-gallery,
  .application-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .application-card,
  .application-card:nth-child(1),
  .application-card:nth-child(2),
  .application-card:nth-child(3),
  .application-card:nth-child(4) {
    grid-column: auto;
  }

  .factory-gallery {
    grid-auto-rows: clamp(11rem, 24vw, 15rem);
  }

  .factory-gallery figure,
  .factory-gallery figure:nth-child(1),
  .factory-gallery figure:nth-child(2),
  .factory-gallery figure:nth-child(3),
  .factory-gallery figure:nth-child(4) {
    grid-column: auto;
    grid-row: auto;
    transform: none;
  }
}

@media (max-width: 640px) {
  .site-header {
    padding: 0.8rem 1rem;
  }

  .main-nav {
    gap: 1rem;
  }

  .hero-copy {
    max-width: none;
  }

  .hero-copy h1 {
    font-size: clamp(2.45rem, 11vw, 3.35rem) !important;
    line-height: 1.08 !important;
  }

  .section-copy h2,
  .section-heading h2,
  .contact-info h2,
  .inner-grid h2,
  .inner-hero h1,
  .spec-heading h2 {
    font-size: clamp(1.75rem, 8vw, 2.35rem) !important;
  }

  .hero-actions,
  .lead-form {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    display: grid;
  }

  .btn,
  .outline-link {
    width: 100%;
  }

  .proof-grid,
  .product-grid,
  .factory-gallery,
  .application-grid {
    grid-template-columns: 1fr;
  }

  .application-card img {
    height: clamp(12rem, 56vw, 16rem);
  }

  .factory-gallery {
    grid-auto-rows: clamp(12rem, 52vw, 18rem);
  }

  .proof-grid article {
    padding: 1.1rem 0;
    border-left: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.18);
  }

  .proof-grid article:first-child {
    border-top: 0;
  }

  .section-heading.compact {
    align-items: flex-start;
    flex-direction: column;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}

.inner-page {
  background: var(--color-bg);
}

.inner-hero {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: end;
  padding: 9rem 0 5rem;
  color: #fff;
  background:
    linear-gradient(90deg, rgba(10, 18, 42, 0.9), rgba(10, 18, 42, 0.58)),
    var(--banner) center / cover no-repeat;
}

.inner-hero.product-banner {
  background:
    linear-gradient(90deg, rgba(10, 18, 42, 0.92), rgba(10, 18, 42, 0.62)),
    url("../images/05-product-pod-5-layer.webp") right center / contain no-repeat,
    #10152b;
}

.inner-hero.certificate-banner {
  background:
    linear-gradient(90deg, rgba(10, 18, 42, 0.92), rgba(10, 18, 42, 0.64)),
    url("../images/12-cert-performance.webp") right center / contain no-repeat,
    #10152b;
}

.inner-hero h1 {
  max-width: 780px;
  color: #fff;
  font-size: clamp(2.75rem, 4.4vw, 4.7rem) !important;
  line-height: 1.08 !important;
  font-weight: 800 !important;
  letter-spacing: 0;
}

.inner-hero p:not(.eyebrow) {
  max-width: 680px;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(1rem, 1.1vw, 1.15rem);
  line-height: 1.65;
}

.inner-content {
  padding: var(--section-pad) 0;
}

.inner-grid {
  display: grid;
  grid-template-columns: minmax(18rem, 0.9fr) minmax(18rem, 1.1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.inner-grid.reverse img {
  order: 2;
}

.inner-grid img {
  border: 1px solid var(--color-line);
  border-radius: 0.5rem;
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.inner-grid ul {
  display: grid;
  gap: 0.85rem;
  padding-left: 1.2rem;
  color: var(--color-muted);
}

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

.document-grid a {
  display: flex;
  align-items: center;
  min-height: 7rem;
  padding: 1.5rem;
  border: 1px solid var(--color-line);
  border-radius: 0.5rem;
  color: var(--color-primary);
  background: #fff;
  font-weight: 800;
  box-shadow: 0 12px 34px rgba(20, 28, 48, 0.04);
  transition: transform 220ms ease, border-color 220ms ease, color 220ms ease, box-shadow 220ms ease;
}

.document-grid a:hover {
  transform: translateY(-3px);
  border-color: rgba(247, 146, 29, 0.42);
  color: var(--color-secondary);
  box-shadow: 0 22px 58px rgba(20, 28, 48, 0.09);
}

.product-detail-page .inner-content {
  scroll-margin-top: 6.5rem;
}

.product-spec-section {
  border-top: 1px solid var(--color-line);
}

.product-spec-section.alt {
  background: #eef3f8;
}

.spec-block {
  margin-top: clamp(2rem, 5vw, 4rem);
}

.spec-heading {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 1.2rem;
}

.spec-heading p {
  margin: 0;
  color: var(--color-secondary);
  font-size: clamp(0.86rem, 1vw, 0.98rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.spec-heading h2 {
  margin: 0;
  color: var(--color-primary);
  font-size: clamp(1.75rem, 2.45vw, 2.45rem) !important;
  line-height: 1.15 !important;
  font-weight: 800 !important;
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: 0.65rem;
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.spec-table {
  width: 100%;
  min-width: 860px;
  border-collapse: collapse;
}

.spec-table th,
.spec-table td {
  padding: 1rem 1.05rem;
  border-bottom: 1px solid var(--color-line);
  text-align: left;
  vertical-align: top;
  font-size: clamp(0.88rem, 1vw, 0.98rem);
}

.spec-table th {
  color: #fff;
  background: var(--color-primary);
  font-weight: 800;
  white-space: nowrap;
}

.spec-table td {
  color: var(--color-text);
}

.spec-table tbody tr:last-child td {
  border-bottom: 0;
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.2rem;
}

.comparison-grid article {
  padding: 1.15rem;
  border: 1px solid var(--color-line);
  border-radius: 0.55rem;
  background: #fff;
}

.comparison-grid strong {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--color-secondary);
  font-size: clamp(1.18rem, 1.6vw, 1.55rem);
  line-height: 1;
}

.comparison-grid span {
  color: var(--color-muted);
  font-size: 0.92rem;
  line-height: 1.45;
}

@media (max-width: 760px) {
  .inner-grid,
  .document-grid,
  .comparison-grid {
    grid-template-columns: 1fr;
  }

  .inner-grid.reverse img {
    order: 0;
  }
}

@media (max-width: 640px) {
  .inner-hero h1,
  .spec-heading h2 {
    font-size: clamp(1.75rem, 8vw, 2.35rem) !important;
    line-height: 1.14 !important;
  }
}