:root {
  --bg: #ffffff;
  --muted-bg: #f7f9fa;
  --text: #111827;
  --muted: #6b7280;
  --brand: #0f4f3a;
  --brand-strong: #0a3d2c;
  --tech: #1e88e5;
  --gold: #c9a66b;
  --border: #e5e7eb;
  --shadow: 0 18px 45px rgba(17, 24, 39, 0.09);
  --soft-shadow: 0 12px 28px rgba(17, 24, 39, 0.07);
  --radius: 20px;
  --font-heading: "Poppins", "Montserrat", Arial, sans-serif;
  --font-body: "Inter", "Roboto", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
}

body.menu-open {
  overflow: hidden;
}

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

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

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 76px;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(16px);
}

.header-inner {
  height: 76px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: 0;
}

.brand img {
  width: 126px;
  height: auto;
}

.brand span {
  display: none;
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  color: #374151;
  font-size: 14px;
  font-weight: 600;
}

.main-nav a {
  position: relative;
  padding: 27px 0 25px;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 19px;
  height: 2px;
  background: var(--brand);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms ease;
}

.main-nav a:hover::after,
.main-nav a:focus-visible::after {
  transform: scaleX(1);
}

.header-actions,
.hero-actions,
.card-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, color 180ms ease, border 180ms ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
}

.btn-primary {
  color: #fff;
  background: var(--brand);
  box-shadow: 0 12px 24px rgba(15, 79, 58, 0.18);
}

.btn-primary:hover {
  background: var(--brand-strong);
}

.btn-outline {
  color: var(--brand);
  background: #fff;
  border-color: rgba(15, 79, 58, 0.22);
}

.btn-outline:hover {
  border-color: var(--brand);
  box-shadow: 0 10px 22px rgba(15, 79, 58, 0.1);
}

.btn-ghost {
  color: var(--brand);
  background: rgba(255, 255, 255, 0.82);
  border-color: rgba(15, 79, 58, 0.18);
}

.btn-gold {
  color: #162318;
  background: var(--gold);
  box-shadow: 0 16px 26px rgba(201, 166, 107, 0.28);
}

.btn-whatsapp {
  color: #fff;
  background: #16a34a;
  box-shadow: 0 16px 28px rgba(22, 163, 74, 0.22);
}

.btn-large {
  min-height: 52px;
  padding: 15px 24px;
  font-size: 16px;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  padding: 10px;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  margin: 5px 0;
  background: var(--text);
}

.hero {
  min-height: 720px;
  display: flex;
  align-items: center;
  padding: 82px 0 64px;
  background: linear-gradient(135deg, #f7f9fa 0%, #ffffff 55%, #eaf4f1 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(440px, 1.05fr);
  align-items: center;
  gap: 48px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  color: var(--brand);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--gold);
}

.eyebrow.light {
  color: #dfeee9;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--font-heading);
  line-height: 1.1;
  letter-spacing: 0;
}

h1 {
  max-width: 720px;
  font-size: clamp(48px, 6vw, 64px);
  font-weight: 700;
}

.hero-copy p {
  max-width: 650px;
  margin: 24px 0 30px;
  color: var(--muted);
  font-size: 18px;
}

.trust-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.trust-pills span {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 8px 14px;
  border: 1px solid rgba(15, 79, 58, 0.16);
  border-radius: 999px;
  color: var(--brand);
  background: rgba(255, 255, 255, 0.72);
  font-size: 14px;
  font-weight: 600;
}

.hero-media {
  position: relative;
  min-height: 520px;
}

.hero-main-image {
  width: 100%;
  height: 520px;
  object-fit: cover;
  object-position: center;
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.hero-info-card {
  position: absolute;
  left: 28px;
  bottom: 28px;
  width: min(330px, calc(100% - 56px));
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.48);
  border-radius: var(--radius);
  color: #fff;
  background: rgba(15, 79, 58, 0.88);
  box-shadow: 0 20px 34px rgba(15, 79, 58, 0.2);
  backdrop-filter: blur(10px);
}

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

.hero-info-card strong {
  margin-bottom: 5px;
  font-family: var(--font-heading);
  font-size: 18px;
}

.hero-info-card span {
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
}

.stats-section {
  margin-top: -36px;
  position: relative;
  z-index: 3;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.stat-card {
  min-height: 138px;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--soft-shadow);
}

.stat-card strong {
  display: block;
  margin-bottom: 8px;
  color: var(--brand);
  font-family: var(--font-heading);
  font-size: 34px;
  line-height: 1;
}

.stat-card span {
  color: var(--muted);
  font-weight: 600;
}

.section {
  padding: 96px 0;
}

.section.muted {
  background: var(--muted-bg);
}

.section-heading {
  max-width: 760px;
  margin: 0 auto 44px;
  text-align: center;
}

.section-heading h2,
.oem-section h2,
.support-copy h2,
.quote-copy h2,
.product-detail h1 {
  font-size: clamp(36px, 4.4vw, 44px);
  font-weight: 700;
}

.section-heading p,
.support-copy p,
.quote-copy p {
  margin: 16px auto 0;
  color: var(--muted);
  font-size: 17px;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.category-card,
.product-card,
.solution-card,
.factory-cards article,
.blog-grid article,
.detail-card,
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 1px 0 rgba(17, 24, 39, 0.02);
  transition: transform 180ms ease, box-shadow 180ms ease, border 180ms ease;
}

.category-card:hover,
.product-card:hover,
.solution-card:hover,
.blog-grid article:hover,
.detail-card:hover {
  transform: translateY(-4px);
  border-color: rgba(15, 79, 58, 0.18);
  box-shadow: var(--soft-shadow);
}

.category-card {
  overflow: hidden;
}

.category-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.category-card:nth-child(2) img,
.category-card:nth-child(5) img {
  object-position: left center;
}

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

.category-card h3,
.product-card h3,
.solution-card h3,
.factory-cards h3,
.blog-grid h3,
.detail-card h3,
.faq-item h3 {
  font-size: 20px;
  font-weight: 700;
}

.category-card p,
.product-card p,
.solution-card p,
.factory-cards p,
.blog-grid p,
.detail-card p,
.faq-item p {
  margin: 10px 0 0;
  color: var(--muted);
}

.category-card a,
.text-link,
.blog-grid a {
  display: inline-flex;
  margin-top: 16px;
  color: var(--brand);
  font-weight: 700;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.product-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.product-image {
  display: block;
  background: #fff;
}

.product-image img {
  width: 100%;
  height: 270px;
  object-fit: cover;
}

.crop-left img {
  object-position: left center;
}

.crop-right img {
  object-position: right center;
}

.crop-center img {
  object-position: center;
}

.product-contain img,
.product-detail-image.product-contain img {
  object-fit: contain;
  object-position: center;
  background: #fff;
}

.product-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 24px;
}

.tag {
  align-self: flex-start;
  margin-bottom: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--brand);
  background: #eaf4f1;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.product-card ul {
  margin: 16px 0 22px;
  padding: 0;
  list-style: none;
  color: #374151;
}

.product-card li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 8px;
}

.product-card li::before,
.support-list span::before,
.oem-list span::before,
.detail-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--tech);
}

.card-actions {
  margin-top: auto;
}

.card-actions .btn {
  flex: 1 1 130px;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.solution-card {
  padding: 28px;
}

.oem-section {
  padding: 96px 0;
  color: #fff;
  background:
    radial-gradient(circle at 78% 15%, rgba(30, 136, 229, 0.22), transparent 26%),
    linear-gradient(135deg, #0f4f3a 0%, #0a3d2c 100%);
}

.oem-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(360px, 1fr);
  gap: 64px;
  align-items: center;
}

.oem-section p {
  max-width: 620px;
  margin: 18px 0 28px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 18px;
}

.oem-list,
.support-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.oem-list span,
.support-list span {
  position: relative;
  min-height: 52px;
  display: flex;
  align-items: center;
  padding: 14px 16px 14px 34px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.08);
  font-weight: 600;
}

.oem-list span::before,
.support-list span::before {
  left: 16px;
  background: var(--gold);
}

.factory-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(340px, 0.94fr);
  gap: 28px;
  align-items: stretch;
}

.factory-gallery {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  grid-template-rows: 1fr 1fr;
  gap: 16px;
}

.factory-gallery img {
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
  border-radius: var(--radius);
}

.factory-gallery img:first-child {
  grid-row: span 2;
}

.factory-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.factory-cards article {
  padding: 24px;
}

.support-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(420px, 1fr);
  gap: 50px;
  align-items: center;
}

.support-copy p {
  margin-bottom: 26px;
}

.support-list span {
  border-color: var(--border);
  color: #374151;
  background: #fff;
}

.support-list span::before {
  background: var(--tech);
}

.certificate-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  align-items: stretch;
}

.certificate-card {
  min-height: 156px;
  display: grid;
  grid-template-rows: 72px minmax(48px, auto);
  gap: 14px;
  align-items: center;
  justify-content: center;
  justify-items: center;
  padding: 26px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: inherit;
  background: #fff;
  text-align: center;
  text-decoration: none;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.certificate-card:hover {
  transform: translateY(-4px);
  border-color: rgba(15, 79, 58, 0.22);
  box-shadow: var(--shadow);
}

.certificate-grid strong {
  width: 64px;
  height: 64px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  border-radius: 18px;
  color: #fff;
  background: var(--brand);
  font-family: var(--font-heading);
  font-size: 19px;
  line-height: 1;
}

.certificate-grid span {
  color: var(--muted);
  font-weight: 600;
  line-height: 1.45;
}

.video-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(320px, 0.55fr);
  gap: 22px;
}

.video-main,
.video-thumbs button {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  border-radius: var(--radius);
  overflow: hidden;
  color: #fff;
  background: #111827;
  text-align: left;
  cursor: pointer;
}

.video-stage {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  min-height: 420px;
  overflow: hidden;
  background: #111827;
}

.video-stage img,
.video-stage iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-stage img {
  object-fit: cover;
  opacity: 0.74;
  transition: opacity 0.2s ease;
}

.video-stage iframe {
  display: none;
  background: #111827;
}

.video-main.is-playing .video-stage img,
.video-main.is-playing .video-play {
  display: none;
}

.video-main.is-playing .video-stage iframe {
  display: block;
}

.video-main.is-playing strong {
  display: none;
}

.video-main strong {
  position: absolute;
  left: 28px;
  bottom: 24px;
  max-width: calc(100% - 56px);
  font-family: var(--font-heading);
  font-size: 26px;
}

.video-play {
  position: absolute;
  left: 28px;
  top: 24px;
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 10px 16px;
  border-radius: 999px;
  color: var(--text);
  background: #fff;
  font-weight: 700;
  border: 0;
  cursor: pointer;
  box-shadow: 0 18px 42px rgba(17, 24, 39, 0.18);
}

.video-play::before,
.video-thumbs b::before {
  content: "";
  width: 0;
  height: 0;
  margin-right: 8px;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-left: 9px solid currentColor;
}

.video-thumbs {
  display: grid;
  gap: 16px;
}

.video-thumbs button {
  min-height: 149px;
}

.video-thumbs img {
  width: 100%;
  height: 149px;
  object-fit: cover;
  opacity: 0.7;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.video-thumbs span {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 16px;
  font-weight: 700;
}

.video-thumbs b {
  position: absolute;
  left: 18px;
  top: 16px;
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.92);
  font-size: 13px;
  font-style: normal;
  font-weight: 800;
}

.video-thumbs button:hover img {
  opacity: 0.86;
  transform: scale(1.04);
}

.modal-open {
  overflow: hidden;
}

.video-modal[hidden] {
  display: none;
}

.video-modal {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: grid;
  place-items: center;
  padding: 24px;
}

.video-modal-backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(17, 24, 39, 0.72);
  cursor: pointer;
}

.video-modal-dialog {
  position: relative;
  z-index: 1;
  width: min(920px, 100%);
  padding: 18px;
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 28px 80px rgba(17, 24, 39, 0.28);
  transform: translateY(12px) scale(0.98);
  opacity: 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.video-modal.is-open .video-modal-dialog {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.video-modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.video-modal-head h3 {
  margin: 0;
  font-size: 20px;
}

.video-modal-close {
  min-height: 38px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--brand);
  background: #fff;
  font-weight: 800;
  cursor: pointer;
}

.video-modal iframe {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 0;
  border-radius: 16px;
  background: #111827;
}

.certificate-modal[hidden] {
  display: none;
}

.certificate-modal {
  position: fixed;
  inset: 0;
  z-index: 125;
  display: grid;
  place-items: center;
  padding: 24px;
}

.certificate-modal-backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(17, 24, 39, 0.72);
  cursor: pointer;
}

.certificate-modal-dialog {
  position: relative;
  z-index: 1;
  width: min(980px, 100%);
  max-height: min(88vh, 920px);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  padding: 18px;
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 28px 80px rgba(17, 24, 39, 0.28);
  transform: translateY(12px) scale(0.98);
  opacity: 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.certificate-modal.is-open .certificate-modal-dialog {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.certificate-modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.certificate-modal-head h3 {
  margin: 0;
  font-size: 20px;
}

.certificate-modal-close {
  min-height: 38px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--brand);
  background: #fff;
  font-weight: 800;
  cursor: pointer;
}

.certificate-modal img {
  max-width: 100%;
  max-height: calc(88vh - 96px);
  margin: 0 auto;
  border: 1px solid var(--border);
  border-radius: 16px;
  object-fit: contain;
  background: #f9fafb;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.blog-grid article {
  padding: 28px;
}

.blog-grid span {
  display: block;
  margin-bottom: 12px;
  color: var(--tech);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.final-cta {
  padding: 96px 0;
  color: #fff;
  background:
    linear-gradient(rgba(15, 79, 58, 0.86), rgba(15, 79, 58, 0.88)),
    url("../images/factory/showroom-panorama.jpg") center / cover;
}

.quote-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(460px, 1fr);
  gap: 54px;
  align-items: start;
}

.quote-copy {
  position: sticky;
  top: 104px;
}

.quote-copy p {
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 28px;
}

.quote-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow);
}

.quote-form label {
  display: grid;
  gap: 7px;
  color: #374151;
  font-size: 14px;
  font-weight: 700;
}

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

.quote-form input,
.quote-form select,
.quote-form textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  color: var(--text);
  background: #fff;
  outline: none;
  transition: border 160ms ease, box-shadow 160ms ease;
}

.quote-form textarea {
  resize: vertical;
}

.quote-form input:focus,
.quote-form select:focus,
.quote-form textarea:focus {
  border-color: var(--tech);
  box-shadow: 0 0 0 4px rgba(30, 136, 229, 0.12);
}

.form-note {
  grid-column: 1 / -1;
  margin: -2px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.site-footer {
  padding: 62px 0 0;
  color: #d1d5db;
  background: #111827;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.35fr repeat(3, 1fr);
  gap: 38px;
}

.footer-brand {
  color: #fff;
}

.footer-brand img {
  width: 122px;
  filter: invert(1);
}

.footer-brand span {
  display: none;
}

.site-footer p {
  margin: 16px 0 0;
  color: #cbd5e1;
}

.site-footer h3 {
  margin-bottom: 16px;
  color: #fff;
  font-size: 17px;
}

.site-footer a {
  display: block;
  margin: 10px 0;
  color: #cbd5e1;
}

.site-footer a:hover {
  color: #fff;
}

.social-links {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
}

.social-links a {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.social-links a:hover {
  border-color: var(--gold);
  background: rgba(201, 166, 107, 0.16);
}

.footer-bottom {
  margin-top: 46px;
  padding: 18px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #94a3b8;
  text-align: center;
}

.mobile-action-bar {
  display: none;
}

.product-hero {
  padding: 72px 0;
  background: linear-gradient(135deg, #f7f9fa 0%, #fff 58%, #eaf4f1 100%);
}

.product-detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.96fr) minmax(420px, 1.04fr);
  gap: 46px;
  align-items: center;
}

.product-detail-image {
  overflow: hidden;
  border-radius: 28px;
  background: #fff;
  box-shadow: var(--shadow);
}

.product-detail-image img {
  width: 100%;
  height: 560px;
  object-fit: cover;
}

.product-detail h1 {
  margin-bottom: 18px;
}

.product-detail .lead {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 18px;
}

.breadcrumb {
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 14px;
}

.breadcrumb a {
  color: var(--brand);
  font-weight: 700;
}

.detail-section {
  padding: 80px 0;
}

.detail-section.muted {
  background: var(--muted-bg);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

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

.detail-card {
  padding: 26px;
}

.detail-list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.detail-list li {
  position: relative;
  padding-left: 19px;
  margin: 9px 0;
  color: #374151;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
}

.spec-table th,
.spec-table td {
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

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

.spec-table th {
  width: 34%;
  color: var(--text);
  background: #f9fafb;
  font-weight: 700;
}

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

.faq-item {
  padding: 24px;
}

.page-cta {
  padding: 72px 0;
  color: #fff;
  background: var(--brand);
}

.page-cta-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: center;
}

.page-cta p {
  margin: 12px 0 0;
  color: rgba(255, 255, 255, 0.78);
}

.page-cta-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

@media (max-width: 1120px) {
  .header-inner {
    grid-template-columns: auto auto;
    justify-content: space-between;
  }

  .menu-toggle {
    display: block;
  }

  .main-nav,
  .header-actions {
    position: fixed;
    left: 20px;
    right: 20px;
    display: none;
    background: #fff;
  }

  .main-nav {
    top: 88px;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
  }

  .main-nav a {
    padding: 12px 14px;
  }

  .main-nav a::after {
    display: none;
  }

  .header-actions {
    top: 520px;
    gap: 10px;
    padding: 0 12px 14px;
    border: 1px solid var(--border);
    border-top: 0;
    border-radius: 0 0 var(--radius) var(--radius);
    box-shadow: var(--shadow);
  }

  .menu-open .main-nav,
  .menu-open .header-actions {
    display: flex;
  }

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

  .hero-media {
    min-height: auto;
  }

  .category-grid,
  .solution-grid,
  .certificate-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .product-grid,
  .blog-grid,
  .detail-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .oem-grid,
  .factory-layout,
  .support-grid,
  .quote-grid,
  .video-grid {
    grid-template-columns: 1fr;
  }

  .quote-copy {
    position: static;
  }

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

@media (max-width: 720px) {
  body {
    padding-bottom: 68px;
  }

  .container {
    width: min(100% - 28px, 1180px);
  }

  .site-header,
  .header-inner {
    height: 70px;
  }

  .brand img {
    width: 110px;
  }

  .hero {
    min-height: auto;
    padding: 54px 0 46px;
  }

  h1 {
    font-size: 42px;
  }

  .hero-copy p,
  .section-heading p,
  .support-copy p,
  .quote-copy p,
  .product-detail .lead {
    font-size: 16px;
  }

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

  .hero-main-image,
  .product-detail-image img {
    height: 360px;
  }

  .stats-section {
    margin-top: 0;
    padding-top: 18px;
  }

  .stats-grid,
  .category-grid,
  .product-grid,
  .solution-grid,
  .factory-cards,
  .support-list,
  .certificate-grid,
  .blog-grid,
  .detail-grid,
  .detail-grid.two,
  .quote-form {
    grid-template-columns: 1fr;
  }

  .section,
  .oem-section,
  .final-cta,
  .detail-section {
    padding: 66px 0;
  }

  .section-heading {
    margin-bottom: 30px;
  }

  .factory-gallery {
    grid-template-columns: 1fr;
    grid-template-rows: none;
  }

  .factory-gallery img:first-child {
    grid-row: auto;
  }

  .oem-list {
    grid-template-columns: 1fr;
  }

  .video-stage {
    min-height: 310px;
  }

  .video-thumbs button,
  .video-thumbs img {
    height: 130px;
  }

  .video-modal {
    padding: 14px;
  }

  .video-modal-dialog {
    padding: 14px;
    border-radius: 18px;
  }

  .quote-form {
    padding: 20px;
  }

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

  .page-cta-inner {
    grid-template-columns: 1fr;
  }

  .page-cta-actions .btn {
    width: 100%;
  }

  .mobile-action-bar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 80;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    padding: 8px;
    border-top: 1px solid rgba(15, 79, 58, 0.14);
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(14px);
    box-shadow: 0 -10px 26px rgba(17, 24, 39, 0.1);
  }

  .mobile-action-bar a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    color: #fff;
    background: var(--brand);
    font-size: 14px;
    font-weight: 700;
  }

  .mobile-action-bar a:first-child {
    background: #16a34a;
  }

  .mobile-action-bar a:nth-child(2) {
    color: var(--brand);
    background: #eaf4f1;
  }
}

@media (max-width: 420px) {
  h1 {
    font-size: 36px;
  }

  .section-heading h2,
  .oem-section h2,
  .support-copy h2,
  .quote-copy h2,
  .product-detail h1 {
    font-size: 32px;
  }

  .hero-info-card {
    left: 16px;
    bottom: 16px;
    width: calc(100% - 32px);
  }
}