:root {
  --bg: #f5f7fa;
  --surface: #ffffff;
  --surface-soft: #eef3f7;
  --ink: #122033;
  --muted: #607086;
  --line: #d9e2eb;
  --navy: #0a1b33;
  --navy-2: #102846;
  --cyan: #12b8d7;
  --cyan-2: #63e0f2;
  --steel: #33465f;
  --shadow: 0 18px 45px rgba(15, 35, 60, 0.12);
  --radius: 8px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family:
    "Inter", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial,
    sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
}

body.nav-open,
body.modal-open {
  overflow: hidden;
}

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

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

button,
input,
textarea {
  font: inherit;
}

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: currentColor;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 700;
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    background 0.2s ease,
    color 0.2s ease;
  cursor: pointer;
}

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

.btn--primary {
  color: #061324;
  background: linear-gradient(135deg, var(--cyan), var(--cyan-2));
  box-shadow: 0 14px 30px rgba(18, 184, 215, 0.25);
}

.btn--ghost {
  color: #eaf7fb;
  border-color: rgba(255, 255, 255, 0.32);
  background: rgba(255, 255, 255, 0.06);
}

.btn--light {
  color: var(--ink);
  border-color: var(--line);
  background: var(--surface);
}

.btn--small {
  min-height: 38px;
  padding: 0 14px;
  color: var(--navy);
  border-color: var(--line);
  background: var(--surface);
}

.text-link {
  color: var(--navy);
  font-weight: 800;
}

.text-link::after {
  content: " ->";
  color: var(--cyan);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(217, 226, 235, 0.82);
  backdrop-filter: blur(16px);
  transition: box-shadow 0.2s ease;
}

.site-header.is-scrolled {
  box-shadow: 0 10px 28px rgba(20, 36, 58, 0.08);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand img {
  width: 42px;
  height: 42px;
}

.brand span {
  display: grid;
  line-height: 1.15;
}

.brand strong {
  font-size: 18px;
  color: var(--navy);
}

.brand small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 11px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav a {
  padding: 10px 14px;
  border-radius: 6px;
  color: var(--steel);
  font-weight: 700;
  transition:
    background 0.2s ease,
    color 0.2s ease;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--navy);
  background: var(--surface-soft);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--navy);
}

.hero {
  position: relative;
  min-height: calc(100vh - 76px);
  overflow: hidden;
  color: #f7fbff;
  background:
    linear-gradient(110deg, rgba(8, 22, 43, 0.98), rgba(12, 39, 70, 0.9) 48%, rgba(8, 22, 43, 0.72)),
    radial-gradient(circle at 78% 26%, rgba(18, 184, 215, 0.28), transparent 28%),
    var(--navy);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 96px;
  background: linear-gradient(180deg, transparent, rgba(245, 247, 250, 0.05));
}

.hero__media {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  opacity: 0.92;
  pointer-events: none;
}

.hero-led-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.92;
  mix-blend-mode: screen;
}

.hero__media img {
  position: relative;
  z-index: 1;
  width: min(58vw, 780px);
  margin-right: -40px;
  opacity: 0.34;
  filter: drop-shadow(0 35px 70px rgba(0, 0, 0, 0.42)) saturate(0.9);
}

.hero__content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: calc(100vh - 76px);
  max-width: var(--container);
  padding: 76px 0 90px;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(42px, 6vw, 76px);
  line-height: 1.08;
  letter-spacing: 0;
}

.hero p {
  max-width: 650px;
  margin: 24px 0 0;
  color: #c8d8e8;
  font-size: 18px;
}

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

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  width: min(100%, 620px);
  margin: 56px 0 0;
}

.hero__stats div {
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
}

.hero__stats dt {
  color: #ffffff;
  font-size: 28px;
  font-weight: 900;
  line-height: 1;
}

.hero__stats dd {
  margin: 8px 0 0;
  color: #b8c8da;
}

.section {
  padding: 92px 0;
}

.section--tight {
  padding-top: 70px;
}

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

.section--dark {
  color: #f7fbff;
  background:
    linear-gradient(135deg, rgba(10, 27, 51, 0.96), rgba(16, 40, 70, 0.96)),
    var(--navy);
}

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

.section__head h2,
.split-layout h2,
.cta-panel h2,
.page-hero h1,
.product-toolbar h2,
.detail-summary h1,
.detail-sections h2,
.contact-layout h2,
.timeline h2 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.16;
  letter-spacing: 0;
}

.section--dark h2 {
  color: #f7fbff;
}

.product-category-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.category-card,
.application-card,
.product-card,
.news-card,
.quality-grid article,
.about-metrics article,
.inquiry-form,
.contact-info,
.application-row,
.feature-figure {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 8px 24px rgba(22, 40, 65, 0.06);
}

.category-card {
  display: grid;
  min-height: 320px;
  padding: 24px;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease;
}

.category-card:hover {
  transform: translateY(-4px);
  border-color: rgba(18, 184, 215, 0.45);
  box-shadow: var(--shadow);
}

.category-card img {
  width: 100%;
  height: 130px;
  object-fit: contain;
  margin-bottom: 20px;
}

.category-card span,
.product-card__body span,
.news-card span {
  color: var(--cyan);
  font-size: 13px;
  font-weight: 800;
}

.category-card h3,
.application-card h3,
.product-card h3,
.news-card h3,
.quality-grid h3 {
  margin: 8px 0 8px;
  color: var(--navy);
  font-size: 20px;
  line-height: 1.3;
}

.category-card p,
.application-card p,
.product-card p,
.news-card p,
.quality-grid p,
.split-layout p,
.cta-panel p,
.page-hero p,
.contact-info p,
.detail-summary p,
.detail-sections p {
  color: var(--muted);
}

.category-card strong {
  align-self: end;
  color: var(--steel);
  font-size: 14px;
}

.application-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.application-card {
  overflow: hidden;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.application-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.application-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  background: #dce8f0;
}

.application-card div {
  padding: 20px;
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.98fr);
  gap: 46px;
  align-items: center;
}

.split-layout__content > p {
  margin: 20px 0 0;
  font-size: 17px;
}

.advantage-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 30px;
}

.advantage-grid article {
  padding: 18px;
  border-left: 3px solid var(--cyan);
  background: var(--surface-soft);
}

.advantage-grid strong,
.about-metrics strong {
  display: block;
  color: var(--navy);
  font-size: 18px;
}

.advantage-grid span,
.about-metrics span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
}

.feature-figure {
  padding: 22px;
}

.feature-figure img {
  width: 100%;
  min-height: 300px;
  object-fit: contain;
}

.trust-band {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  gap: 36px;
  align-items: center;
}

.trust-band p {
  color: #b8c8da;
}

.logo-wall {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.logo-wall span {
  display: grid;
  place-items: center;
  min-height: 74px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  color: #dbeeff;
  background: rgba(255, 255, 255, 0.06);
  font-weight: 800;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

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

.news-card {
  padding: 24px;
}

.news-card div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font-size: 14px;
}

.news-card a {
  display: inline-block;
  margin-top: 12px;
  color: var(--navy);
  font-weight: 800;
}

.cta-section {
  padding: 0 0 92px;
  background: var(--bg);
}

.cta-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 42px;
  border-radius: var(--radius);
  color: #f7fbff;
  background:
    linear-gradient(135deg, rgba(10, 27, 51, 0.96), rgba(16, 40, 70, 0.94)),
    var(--navy);
  box-shadow: var(--shadow);
}

.cta-panel h2 {
  color: #f7fbff;
}

.cta-panel p {
  margin-bottom: 0;
  color: #c8d8e8;
}

.page-hero {
  padding: 86px 0 62px;
  color: #f7fbff;
  background:
    linear-gradient(135deg, rgba(10, 27, 51, 0.96), rgba(16, 40, 70, 0.94)),
    var(--navy);
}

.page-hero h1 {
  color: #f7fbff;
}

.page-hero p {
  max-width: 720px;
  margin: 18px 0 0;
  color: #c8d8e8;
  font-size: 17px;
}

.product-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.product-sidebar {
  position: sticky;
  top: 100px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 8px 24px rgba(22, 40, 65, 0.06);
}

.side-title {
  margin-bottom: 12px;
  color: var(--navy);
  font-weight: 900;
}

.category-nav {
  display: grid;
  gap: 8px;
}

.category-nav button {
  width: 100%;
  padding: 14px;
  border: 1px solid transparent;
  border-radius: 6px;
  text-align: left;
  background: var(--surface-soft);
  cursor: pointer;
  transition:
    border-color 0.2s ease,
    background 0.2s ease;
}

.category-nav button.is-active,
.category-nav button:hover {
  border-color: rgba(18, 184, 215, 0.45);
  background: #e8f8fb;
}

.category-nav span {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: var(--navy);
  font-weight: 900;
}

.category-nav em {
  min-width: 26px;
  padding: 2px 7px;
  border-radius: 999px;
  color: var(--cyan);
  background: #ffffff;
  font-size: 12px;
  font-style: normal;
  text-align: center;
}

.category-nav small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
}

.product-toolbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
}

.search-field input {
  width: min(420px, 42vw);
  min-height: 46px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  background: var(--surface);
  outline: none;
}

.search-field input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(18, 184, 215, 0.14);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.product-card {
  overflow: hidden;
}

.product-card__image {
  display: grid;
  place-items: center;
  min-height: 210px;
  background: linear-gradient(180deg, #f8fbfd, #edf4f9);
}

.product-card__image img {
  width: 82%;
  height: 170px;
  object-fit: contain;
}

.product-card__body {
  padding: 22px;
}

.product-card dl {
  display: grid;
  gap: 8px;
  margin: 18px 0;
}

.product-card dl div {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 12px;
}

.product-card dt {
  color: var(--muted);
  font-size: 13px;
}

.product-card dd {
  margin: 0;
  color: var(--steel);
  font-size: 14px;
}

.empty-state {
  padding: 24px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  background: var(--surface);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 14px;
}

.breadcrumb a {
  color: var(--navy);
  font-weight: 800;
}

.detail-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.92fr) minmax(0, 1.08fr);
  gap: 38px;
  align-items: start;
}

.detail-main-image {
  display: grid;
  place-items: center;
  width: 100%;
  min-height: 420px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #ffffff, #edf4f9);
  cursor: zoom-in;
}

.detail-main-image img {
  width: 84%;
  height: 340px;
  object-fit: contain;
}

.detail-thumbs {
  display: flex;
  gap: 12px;
  margin-top: 14px;
}

.detail-thumbs button {
  display: grid;
  place-items: center;
  width: 84px;
  height: 72px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  cursor: pointer;
}

.detail-thumbs button.is-active {
  border-color: var(--cyan);
}

.detail-thumbs img {
  width: 64px;
  height: 52px;
  object-fit: contain;
}

.detail-summary {
  padding: 32px;
  border-radius: var(--radius);
  color: #f7fbff;
  background:
    linear-gradient(135deg, rgba(10, 27, 51, 0.98), rgba(16, 40, 70, 0.94)),
    var(--navy);
}

.detail-summary h1 {
  color: #f7fbff;
}

.detail-summary p {
  color: #c8d8e8;
}

.detail-model {
  margin-top: 20px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.06);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.tag-row span {
  padding: 6px 10px;
  border-radius: 999px;
  color: #dff9ff;
  background: rgba(18, 184, 215, 0.18);
  font-size: 13px;
  font-weight: 800;
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.detail-sections {
  display: grid;
  gap: 24px;
  margin-top: 38px;
}

.detail-sections section {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.detail-sections h2 {
  margin-bottom: 18px;
  font-size: 28px;
}

.spec-table {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.spec-table div {
  display: grid;
  grid-template-columns: 128px 1fr;
  min-height: 54px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.spec-table dt,
.spec-table dd {
  margin: 0;
  padding: 14px;
}

.spec-table dt {
  color: var(--steel);
  font-weight: 900;
  background: var(--surface-soft);
}

.spec-table dd {
  color: var(--muted);
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.feature-list li {
  padding: 14px 16px;
  border-left: 3px solid var(--cyan);
  background: var(--surface-soft);
}

.application-list {
  display: grid;
  gap: 24px;
}

.application-row {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 28px;
  padding: 24px;
  scroll-margin-top: 100px;
}

.application-row > img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-radius: 6px;
  background: var(--surface-soft);
}

.application-row h2 {
  margin: 0;
  color: var(--navy);
  font-size: 30px;
}

.related-products {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 22px;
}

.related-products a {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface-soft);
}

.related-products span {
  display: block;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 800;
}

.related-products strong {
  display: block;
  margin-top: 4px;
  color: var(--navy);
}

.about-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.about-metrics article,
.quality-grid article {
  padding: 24px;
}

.timeline ol {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.timeline li {
  position: relative;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.timeline time {
  color: var(--navy);
  font-weight: 900;
}

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

.quality-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: 28px;
  align-items: start;
}

.contact-info,
.inquiry-form {
  padding: 28px;
}

.contact-info dl {
  display: grid;
  gap: 16px;
  margin: 22px 0;
}

.contact-info dl div {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.contact-info dt {
  color: var(--navy);
  font-weight: 900;
}

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

.contact-info a {
  color: var(--navy);
  font-weight: 800;
}

.map-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-soft);
}

.map-card img {
  width: 100%;
  min-height: 230px;
  object-fit: cover;
}

.inquiry-form {
  display: grid;
  gap: 16px;
}

.inquiry-form label {
  display: grid;
  gap: 8px;
  color: var(--steel);
  font-weight: 800;
}

.inquiry-form input,
.inquiry-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  background: #fbfdff;
  outline: none;
}

.inquiry-form input {
  min-height: 44px;
  padding: 0 14px;
}

.inquiry-form textarea {
  resize: vertical;
  padding: 12px 14px;
}

.inquiry-form input:focus,
.inquiry-form textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(18, 184, 215, 0.14);
}

.form-note {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.site-footer {
  color: #c8d8e8;
  background: #071426;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr 0.8fr 1.1fr;
  gap: 32px;
  padding: 56px 0 38px;
}

.brand--footer strong {
  color: #ffffff;
}

.brand--footer small {
  color: #8fa6bd;
}

.site-footer h2 {
  margin: 0 0 14px;
  color: #ffffff;
  font-size: 16px;
}

.site-footer p {
  margin: 10px 0;
  color: #9eb0c4;
}

.site-footer a {
  display: block;
  margin: 8px 0;
  color: #c8d8e8;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #8fa6bd;
  font-size: 13px;
}

.float-contact {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 35;
  display: grid;
  gap: 8px;
}

.float-contact a {
  display: grid;
  place-items: center;
  width: 54px;
  min-height: 42px;
  border-radius: 6px;
  color: #061324;
  background: var(--cyan);
  box-shadow: 0 12px 28px rgba(18, 184, 215, 0.24);
  font-size: 13px;
  font-weight: 900;
}

.image-modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 40px;
  background: rgba(4, 12, 22, 0.86);
}

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

.image-modal img {
  max-width: min(900px, 92vw);
  max-height: 82vh;
  border-radius: var(--radius);
  background: #ffffff;
}

.image-modal button {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  cursor: pointer;
}

.image-modal button::before,
.image-modal button::after {
  content: "";
  position: absolute;
  top: 20px;
  left: 11px;
  width: 20px;
  height: 2px;
  background: #ffffff;
}

.image-modal button::before {
  transform: rotate(45deg);
}

.image-modal button::after {
  transform: rotate(-45deg);
}

@media (max-width: 1040px) {
  .product-category-grid,
  .news-grid,
  .news-grid--page {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .application-grid,
  .quality-grid,
  .about-metrics,
  .timeline ol {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .trust-band,
  .split-layout,
  .contact-layout,
  .detail-layout,
  .application-row {
    grid-template-columns: 1fr;
  }

  .product-layout {
    grid-template-columns: 230px minmax(0, 1fr);
  }
}

@media (max-width: 820px) {
  .container {
    width: min(100% - 28px, var(--container));
  }

  .nav-shell {
    min-height: 68px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    inset: 68px 0 auto;
    display: none;
    grid-template-columns: 1fr;
    padding: 14px;
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 18px 32px rgba(20, 36, 58, 0.1);
  }

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

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

  .hero,
  .hero__content {
    min-height: auto;
  }

  .hero__content {
    padding: 72px 0 60px;
  }

  .hero__media {
    opacity: 0.26;
  }

  .hero-led-canvas {
    opacity: 0.72;
  }

  .hero__media img {
    width: 820px;
    margin-right: -340px;
  }

  .hero h1 {
    font-size: clamp(36px, 11vw, 52px);
  }

  .hero p {
    font-size: 16px;
  }

  .hero__stats {
    grid-template-columns: 1fr;
    margin-top: 36px;
  }

  .section {
    padding: 62px 0;
  }

  .section--tight {
    padding-top: 48px;
  }

  .section__head,
  .product-toolbar,
  .cta-panel,
  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .product-category-grid,
  .application-grid,
  .product-grid,
  .news-grid,
  .news-grid--page,
  .advantage-grid,
  .related-products,
  .spec-table,
  .feature-list,
  .quality-grid,
  .about-metrics,
  .timeline ol,
  .logo-wall {
    grid-template-columns: 1fr;
  }

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

  .product-sidebar {
    position: static;
  }

  .search-field input {
    width: 100%;
  }

  .product-toolbar {
    display: grid;
  }

  .spec-table div {
    grid-template-columns: 112px 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    padding-top: 42px;
  }

  .float-contact {
    right: 12px;
    bottom: 12px;
  }
}

@media (max-width: 520px) {
  .brand strong {
    font-size: 16px;
  }

  .brand small {
    display: none;
  }

  .hero__actions,
  .detail-actions {
    display: grid;
  }

  .category-card,
  .news-card,
  .detail-summary,
  .detail-sections section,
  .contact-info,
  .inquiry-form,
  .cta-panel,
  .application-row {
    padding: 20px;
  }

  .detail-main-image {
    min-height: 300px;
  }

  .detail-main-image img {
    height: 250px;
  }

  .spec-table div {
    grid-template-columns: 1fr;
  }

  .contact-info dl div {
    grid-template-columns: 1fr;
  }
}