:root {
  --ink: #15191f;
  --muted: #59616d;
  --line: #d9dee6;
  --panel: #f5f7fa;
  --white: #ffffff;
  --navy: #162842;
  --blue: #245d83;
  --teal: #15716d;
  --amber: #d99122;
  --shadow: 0 18px 45px rgba(21, 25, 31, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 14px clamp(20px, 4vw, 64px);
  color: var(--white);
  transition: background 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 10px 30px rgba(21, 25, 31, 0.08);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 178px;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.32);
  background: linear-gradient(135deg, var(--amber), #f0bd61);
  color: #111417;
  font-weight: 800;
  letter-spacing: 0;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 16px;
  line-height: 1.2;
}

.brand small {
  color: currentColor;
  font-size: 12px;
  opacity: 0.75;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(8px, 1.2vw, 18px);
  font-size: 14px;
  font-weight: 700;
}

.site-nav a {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  padding: 0 14px;
  border-radius: 4px;
  opacity: 0.9;
  transition: background 160ms ease, color 160ms ease, opacity 160ms ease;
}

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

.site-nav a.is-active {
  background: rgba(217, 145, 34, 0.14);
}

.nav-cta {
  padding: 10px 16px;
  border: 1px solid currentColor;
  border-radius: 4px;
}

.nav-cta.is-active {
  border-color: var(--amber);
  background: var(--amber);
  color: #111417;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid currentColor;
  border-radius: 4px;
  background: transparent;
  color: currentColor;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: center;
  overflow: hidden;
  color: var(--white);
}

.hero-image,
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(11, 16, 23, 0.88) 0%, rgba(15, 23, 33, 0.68) 42%, rgba(10, 14, 20, 0.2) 100%),
    linear-gradient(180deg, rgba(11, 16, 23, 0.62) 0%, rgba(11, 16, 23, 0.08) 45%, rgba(11, 16, 23, 0.58) 100%);
}

.hero-content {
  position: relative;
  width: min(720px, calc(100% - 40px));
  margin-left: clamp(20px, 7vw, 96px);
  padding-top: 80px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--amber);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: break-word;
}

h1 {
  max-width: 710px;
  margin: 0;
  font-size: clamp(42px, 6vw, 76px);
  line-height: 1.02;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 650px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(17px, 2vw, 21px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 22px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  background: var(--amber);
  color: #121416;
}

.button.secondary {
  border-color: rgba(255, 255, 255, 0.42);
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--navy);
  color: var(--white);
}

.metrics div {
  padding: 28px clamp(18px, 3vw, 44px);
  border-right: 1px solid rgba(255, 255, 255, 0.14);
}

.metrics strong {
  display: block;
  color: var(--amber);
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1;
}

.metrics span {
  display: block;
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
  font-weight: 700;
}

.metrics .metric-title {
  margin-top: 0;
  color: var(--white);
  font-size: clamp(18px, 2vw, 28px);
  line-height: 1.15;
}

.metrics .metric-title + span {
  max-width: 360px;
  margin-top: 12px;
  line-height: 1.55;
}

.info-marquee {
  display: flex;
  overflow: hidden;
  gap: 28px;
  border-bottom: 1px solid var(--line);
  background: #f9fafb;
  color: var(--navy);
  white-space: nowrap;
}

.marquee-track {
  display: flex;
  flex: 0 0 auto;
  gap: 28px;
  min-width: 100%;
  padding: 14px 0;
  animation: marquee-scroll 34s linear infinite;
}

.marquee-track span {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.marquee-track span::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber);
}

.info-marquee:hover .marquee-track {
  animation-play-state: paused;
}

@keyframes marquee-scroll {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(calc(-100% - 28px));
  }
}

.section {
  padding: clamp(68px, 8vw, 112px) clamp(20px, 5vw, 76px);
  scroll-margin-top: 88px;
}

.section-heading {
  width: min(100%, 1180px);
  max-width: 860px;
  margin: 0 auto 34px;
}

.section-heading.split {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 38px;
  max-width: 1180px;
  align-items: end;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 50px);
  line-height: 1.08;
  letter-spacing: 0;
}

.section-heading p:not(.eyebrow) {
  margin: 0;
  color: var(--muted);
}

.company-section,
.carousel-section,
.scenario-section,
.oem-section,
.reviews-section,
.survey-section {
  background: var(--white);
}

.company-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(28px, 5vw, 70px);
  align-items: start;
  max-width: 1180px;
  margin: 0 auto;
}

.text-panel {
  padding-left: 22px;
  border-left: 4px solid var(--amber);
  color: var(--muted);
  font-size: 17px;
}

.text-panel p {
  margin: 0 0 18px;
}

.text-panel p:last-child {
  margin-bottom: 0;
}

.capability-list {
  display: grid;
  gap: 14px;
}

.capability-list article,
.review-card,
.quality-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.capability-list article {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 16px;
  padding: 22px;
}

.capability-list span {
  grid-row: 1 / span 2;
  color: var(--teal);
  font-size: 20px;
  font-weight: 800;
}

.capability-list h3,
.capability-list p {
  grid-column: 2;
}

.capability-list h3,
.quality-grid h3,
.product-summary h3 {
  margin: 0 0 6px;
  font-size: 20px;
}

.capability-list p,
.quality-grid p,
.company-profile-grid p,
.product-summary p {
  margin: 0;
  color: var(--muted);
}

.company-profile-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  max-width: 1180px;
  margin: 28px auto 0;
}

.company-profile-grid article {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(36, 93, 131, 0.06), rgba(255, 255, 255, 0) 48%),
    var(--white);
  box-shadow: 0 12px 32px rgba(21, 25, 31, 0.06);
}

.company-profile-grid span {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.company-profile-grid h3 {
  margin: 0 0 8px;
  font-size: 21px;
  line-height: 1.2;
}

.product-section,
.quality-section,
.contact-section {
  background: var(--panel);
}

.carousel {
  position: relative;
  max-width: 1180px;
  margin: 0 auto;
}

.carousel-viewport {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  border-radius: 8px;
  background: #111417;
  box-shadow: var(--shadow);
}

.carousel-slide {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.46fr);
  opacity: 0;
  pointer-events: none;
  transform: translateX(26px);
  transition: opacity 420ms ease, transform 420ms ease;
}

.carousel-slide.is-active {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
}

.carousel-slide img {
  width: 100%;
  height: 100%;
  min-height: 520px;
  object-fit: cover;
}

.carousel-caption {
  display: grid;
  align-content: center;
  padding: clamp(28px, 4vw, 54px);
  background: var(--navy);
  color: var(--white);
}

.carousel-caption span {
  margin-bottom: 12px;
  color: var(--amber);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.carousel-caption h3 {
  margin: 0;
  font-size: clamp(26px, 2.4vw, 36px);
  line-height: 1.14;
}

.carousel-caption p {
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.78);
}

.carousel-button {
  position: absolute;
  top: 50%;
  z-index: 2;
  width: 48px;
  height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 50%;
  background: rgba(17, 20, 23, 0.62);
  color: var(--white);
  cursor: pointer;
  transform: translateY(-50%);
  transition: background 160ms ease, border-color 160ms ease;
}

.carousel-button:hover {
  border-color: var(--amber);
  background: var(--amber);
}

.carousel-button::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 12px;
  height: 12px;
  border-top: 3px solid currentColor;
  border-left: 3px solid currentColor;
}

.carousel-button.prev {
  left: 18px;
}

.carousel-button.next {
  right: 18px;
}

.carousel-button.prev::before {
  transform: translate(-35%, -50%) rotate(-45deg);
}

.carousel-button.next::before {
  transform: translate(-65%, -50%) rotate(135deg);
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 18px;
}

.carousel-dots button {
  width: 12px;
  height: 12px;
  border: 0;
  border-radius: 50%;
  background: #b9c1cc;
  cursor: pointer;
}

.carousel-dots button.is-active {
  width: 34px;
  border-radius: 999px;
  background: var(--amber);
}

.oem-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  max-width: 1180px;
  margin: 0 auto;
}

.oem-grid article {
  min-height: 260px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(21, 113, 109, 0.06), rgba(255, 255, 255, 0) 46%),
    var(--white);
  box-shadow: 0 12px 32px rgba(21, 25, 31, 0.06);
}

.oem-grid span {
  display: inline-block;
  margin-bottom: 28px;
  color: var(--amber);
  font-size: 22px;
  font-weight: 800;
}

.oem-grid h3 {
  margin: 0 0 8px;
  font-size: 21px;
}

.oem-grid p {
  margin: 0;
  color: var(--muted);
}

.product-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(24px, 4vw, 48px);
  max-width: 1180px;
  margin: 0 auto;
  align-items: stretch;
}

.product-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.product-visual {
  aspect-ratio: 4 / 3;
  background: #dfe5eb;
}

.product-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-summary {
  padding: 24px;
}

.specs {
  display: grid;
  border-top: 1px solid var(--line);
  background: var(--white);
}

.spec-row {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 18px;
  align-items: center;
  padding: 18px 22px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.spec-row span {
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.spec-row strong {
  font-weight: 700;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  max-width: 1180px;
  margin: 0 auto;
}

.scenario-card {
  display: grid;
  grid-template-rows: auto 1fr;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 12px 32px rgba(21, 25, 31, 0.07);
}

.scenario-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #dfe5eb;
}

.scenario-card div {
  display: grid;
  align-content: start;
  padding: 22px;
}

.scenario-card span {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.scenario-card h3 {
  margin: 0 0 8px;
  font-size: 20px;
  line-height: 1.2;
}

.scenario-card p {
  margin: 0;
  color: var(--muted);
}

.scenario-section .section-heading.split {
  grid-template-columns: minmax(0, 0.95fr) minmax(340px, 0.75fr);
  align-items: center;
  margin-bottom: 44px;
}

.scenario-section .section-heading h2 {
  max-width: 720px;
}

.quality-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  max-width: 1180px;
  margin: 0 auto;
}

.quality-card {
  overflow: hidden;
  box-shadow: 0 12px 32px rgba(21, 25, 31, 0.07);
}

.quality-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #dfe5eb;
}

.quality-card div {
  padding: 22px;
}

.quality-tag {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 800;
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  max-width: 1180px;
  margin: 0 auto;
}

.review-card {
  padding: 26px;
  box-shadow: 0 12px 32px rgba(21, 25, 31, 0.07);
}

.review-card p {
  margin: 10px 0 0;
  color: #333b46;
  font-size: 16px;
}

.review-card strong,
.review-card span {
  display: block;
}

.review-card strong {
  font-size: 18px;
}

.review-card span {
  color: var(--muted);
  font-size: 14px;
}

.compliance-band {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(320px, 1fr);
  gap: 36px;
  align-items: center;
  padding: clamp(34px, 5vw, 56px) clamp(20px, 5vw, 76px);
  background: #111417;
  color: var(--white);
}

.compliance-band > * {
  width: min(100%, 1180px);
}

.compliance-band h2 {
  margin: 0;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.1;
}

.compliance-band p:not(.eyebrow) {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
}

.contact-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.6fr);
  gap: 36px;
  max-width: 1180px;
  margin: 0 auto;
  padding: clamp(28px, 5vw, 56px);
  background: var(--navy);
  color: var(--white);
}

.contact-panel h2 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.08;
}

.contact-panel p:not(.eyebrow) {
  max-width: 720px;
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.78);
}

.contact-list {
  display: grid;
  align-content: center;
  gap: 12px;
}

.contact-list a,
.contact-list span {
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.9);
  font-weight: 700;
}

.survey-form {
  max-width: 1180px;
  margin: 0 auto;
  padding: clamp(22px, 4vw, 38px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 14px 38px rgba(21, 25, 31, 0.08);
}

.survey-section .section-heading {
  margin-bottom: 24px;
}

.survey-section .section-heading .eyebrow {
  margin-bottom: 8px;
}

.survey-section .section-heading h2 {
  max-width: 760px;
  font-size: clamp(32px, 3.4vw, 46px);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-bottom: 18px;
}

label {
  display: grid;
  gap: 8px;
  color: #303842;
  font-size: 14px;
  font-weight: 800;
}

.form-honeypot {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid #c9d0da;
  border-radius: 4px;
  background: #fbfcfd;
  color: var(--ink);
  outline: none;
  transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

input,
select {
  min-height: 48px;
  padding: 0 14px;
}

select {
  appearance: none;
  padding-right: 52px;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='%234b5b6d' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m7 10 5 5 5-5'/%3E%3C/svg%3E") right 15px center / 18px 18px no-repeat,
    linear-gradient(90deg, transparent calc(100% - 46px), #eef3f8 calc(100% - 46px)) #fbfcfd;
  cursor: pointer;
}

.select-field select {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.custom-select {
  position: relative;
}

.custom-select-button {
  width: 100%;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 14px;
  border: 1px solid #c9d0da;
  border-radius: 4px;
  background: #fbfcfd;
  color: var(--ink);
  font: inherit;
  font-weight: 800;
  text-align: left;
  cursor: pointer;
  transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.custom-select-button:hover {
  border-color: #aeb8c5;
  background: #ffffff;
}

.custom-select.is-open .custom-select-button,
.custom-select-button:focus {
  border-color: var(--blue);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(36, 93, 131, 0.16);
  outline: 0;
}

.custom-select-button::after {
  content: "";
  flex: 0 0 auto;
  width: 46px;
  align-self: stretch;
  margin: 0 -14px 0 0;
  border-left: 1px solid rgba(36, 93, 131, 0.08);
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='%234b5b6d' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m7 10 5 5 5-5'/%3E%3C/svg%3E") center / 18px 18px no-repeat,
    #eef3f8;
}

.custom-select.is-open .custom-select-button::after {
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='%23245d83' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m17 14-5-5-5 5'/%3E%3C/svg%3E") center / 18px 18px no-repeat,
    #e7f0f7;
}

.custom-select-list {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% + 8px);
  z-index: 8;
  display: grid;
  gap: 4px;
  max-height: 260px;
  overflow: auto;
  margin: 0;
  padding: 8px;
  border: 1px solid #c9d0da;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 18px 48px rgba(21, 25, 31, 0.16);
  list-style: none;
}

.custom-select-list[hidden] {
  display: none;
}

.custom-select-option {
  min-height: 40px;
  display: flex;
  align-items: center;
  padding: 0 10px;
  border-radius: 6px;
  color: #26313d;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
}

.custom-select-option:hover,
.custom-select-option.is-active {
  background: #fff7ea;
  color: #9a5a05;
}

.custom-select-option.is-selected {
  background: #e8f0f7;
  color: var(--blue);
}

textarea {
  min-height: 132px;
  margin-top: 0;
  padding: 13px 14px;
  resize: vertical;
}

.survey-form > label {
  margin-top: 0;
}

.survey-form > label textarea {
  min-height: 150px;
  display: block;
}

input:hover,
select:hover,
textarea:hover {
  border-color: #aeb8c5;
  background-color: #ffffff;
}

select:hover {
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='%23245d83' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m7 10 5 5 5-5'/%3E%3C/svg%3E") right 15px center / 18px 18px no-repeat,
    linear-gradient(90deg, transparent calc(100% - 46px), #e8f0f7 calc(100% - 46px)) #ffffff;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(36, 93, 131, 0.16);
}

select:focus {
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='%23245d83' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m7 10 5 5 5-5'/%3E%3C/svg%3E") right 15px center / 18px 18px no-repeat,
    linear-gradient(90deg, transparent calc(100% - 46px), #e7f0f7 calc(100% - 46px)) #ffffff;
}

.form-submit {
  margin-top: 22px;
}

.form-status {
  min-height: 24px;
  margin: 14px 0 0;
  color: var(--teal);
  font-weight: 800;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 26px clamp(20px, 5vw, 76px);
  background: #111417;
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
}

.site-footer span:first-child {
  color: var(--white);
  font-weight: 800;
}

@media (max-width: 980px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 76px;
    left: 20px;
    right: 20px;
    display: none;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--white);
    color: var(--ink);
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: grid;
    gap: 4px;
  }

  .site-nav a {
    padding: 12px 10px;
  }

  .nav-cta {
    text-align: center;
  }

  .metrics,
  .carousel-slide,
  .scenario-grid,
  .quality-grid,
  .review-grid,
  .oem-grid,
  .company-profile-grid,
  .compliance-band,
  .section-heading.split,
  .company-grid,
  .product-layout,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  .scenario-card,
  .quality-card {
    grid-column: auto;
  }

  .scenario-grid,
  .quality-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .scenario-section .section-heading.split {
    grid-template-columns: 1fr;
    margin-bottom: 34px;
  }

  .carousel-viewport {
    min-height: 720px;
  }

  .carousel-slide img {
    min-height: 360px;
  }

  .carousel-caption h3 {
    font-size: 30px;
  }
}

@media (max-width: 680px) {
  .site-header {
    min-height: 68px;
    padding: 12px 16px;
  }

  .brand {
    min-width: 0;
  }

  .brand small {
    display: none;
  }

  .site-nav {
    top: 68px;
    left: 12px;
    right: 12px;
  }

  .hero {
    min-height: 88vh;
  }

  .hero-image {
    object-position: 62% center;
  }

  .hero-content {
    width: calc(100% - 32px);
    margin-left: 16px;
  }

  h1 {
    font-size: 40px;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .metrics,
  .scenario-grid,
  .quality-grid,
  .oem-grid,
  .company-profile-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .carousel-viewport {
    min-height: 660px;
  }

  .carousel-slide img {
    min-height: 300px;
  }

  .carousel-caption h3 {
    font-size: 28px;
  }

  .carousel-button {
    top: 270px;
    width: 42px;
    height: 42px;
  }

  .metrics div {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  }

  .spec-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .site-footer {
    display: grid;
  }
}