/* Homepage stylesheet bundle. Source order preserves the approved e2e4de84 cascade. */

/* Bundled from styles.css. */
:root {
  --bg: #0b1119;
  --bg-soft: #121b27;
  --surface: #131f2d;
  --surface-2: #172536;
  --surface-3: #eaf0f6;
  --text: #edf3f8;
  --text-dark: #102031;
  --muted: #9dafc2;
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(255, 255, 255, 0.18);
  --primary: #1e63ff;
  --primary-strong: #0f46c7;
  --accent: #58d0ff;
  --glow: rgba(30, 99, 255, 0.28);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
  --radius: 26px;
  --container: 1760px;
  --page-gutter: clamp(20px, 4vw, 80px);
}

* {
  box-sizing: border-box;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 0;
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(88, 208, 255, 0.12), transparent 24%),
    radial-gradient(circle at top right, rgba(30, 99, 255, 0.18), transparent 30%),
    linear-gradient(180deg, #081019 0%, #0b1119 18%, #0d1520 100%);
}

section[id] {
  scroll-margin-top: calc(var(--site-header-height, 148px) + 24px);
}

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

main {
  background:
    radial-gradient(circle at 14% 18%, rgba(46, 132, 190, 0.07), transparent 30%),
    radial-gradient(circle at 86% 62%, rgba(31, 94, 148, 0.06), transparent 34%),
    linear-gradient(180deg, #08121d 0%, #0b1723 36%, #091520 70%, #08121c 100%);
}

.about,
.products,
.strengths,
.customers,
.case-study,
.faq-section,
.contact {
  content-visibility: auto;
  contain-intrinsic-size: auto 900px;
}

main > .section.about,
main > .section.catalog,
main > .section.products,
main > .section.strengths,
main > .section.customers,
main > .section.case-study,
main > .section.faq-section,
main > .section.contact {
  background: transparent;
}

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

p,
h1,
h2,
h3,
ol,
ul,
li {
  margin: 0;
  padding: 0;
}

ul,
ol {
  list-style: none;
}

.page-shell {
  overflow-x: clip;
  overflow-y: visible;
}

.page-shell > main {
  padding-top: var(--site-header-height, 148px);
}

.container {
  width: min(calc(100% - (var(--page-gutter) * 2)), var(--container));
  margin: 0 auto;
}

.topbar {
  border-bottom: 1px solid var(--line);
  background: rgba(3, 7, 13, 0.72);
  font-size: 13px;
  color: var(--muted);
}

.topbar-inner,
.topbar-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.topbar-inner {
  padding: 12px 0;
}

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 50;
  width: 100%;
  backdrop-filter: blur(18px);
  background: rgba(7, 13, 21, 0.96);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px 24px;
  padding: 16px 0 14px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: auto;
}

.nav-hotline,
.nav-wechat,
.nav-whatsapp {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
}

.nav-hotline {
  width: 38px;
  height: 38px;
  padding: 0;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 8px 18px rgba(9, 32, 60, 0.24);
}

.nav-wechat,
.nav-whatsapp {
  width: 38px;
  height: 38px;
  border: 1px solid rgba(88, 208, 255, 0.22);
  background: rgba(88, 208, 255, 0.1);
  color: #58d0ff;
}

.nav-wechat svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.nav-hotline img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.nav-whatsapp {
  border-color: rgba(37, 211, 102, 0.34);
  background: rgba(37, 211, 102, 0.12);
  color: #25d366;
}

.nav-whatsapp svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  padding: 8px 18px 8px 8px;
  border: 1px solid rgba(88, 208, 255, 0.09);
  border-radius: 18px;
  background:
    linear-gradient(135deg, rgba(88, 208, 255, 0.035), rgba(255, 255, 255, 0.012));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.035),
    0 12px 28px rgba(0, 0, 0, 0.1);
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.brand:hover,
.brand:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(88, 208, 255, 0.22);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.055),
    0 18px 38px rgba(0, 0, 0, 0.16),
    0 0 26px rgba(88, 208, 255, 0.1);
}

.search-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: rgba(237, 243, 248, 0.9);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}

.search-trigger:hover,
.search-trigger:focus-visible {
  background: rgba(255, 255, 255, 0.1);
}

/* Keep localized RFQ shortcuts aligned when search labels have different lengths. */
@media (min-width: 641px) {
  html[lang="hi"] .nav-actions,
  html[lang="ru"] .nav-actions,
  html[lang="de"] .nav-actions {
    width: 400px;
  }

  html[lang="hi"] .search-trigger,
  html[lang="ru"] .search-trigger,
  html[lang="de"] .search-trigger {
    width: 69px;
    min-width: 69px;
    box-sizing: border-box;
  }
}

.brand-mark {
  width: 112px;
  height: auto;
  flex: 0 0 auto;
  filter:
    drop-shadow(0 1px 0 rgba(255, 255, 255, 0.22))
    drop-shadow(0 0 8px rgba(88, 208, 255, 0.18))
    contrast(1.08);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 3px;
  min-width: 0;
  padding-left: 16px;
  border-left: 1px solid rgba(88, 208, 255, 0.18);
  text-align: left;
}

.brand-name-cn {
  color: rgba(248, 252, 255, 0.96);
  font-family: "华文行楷", "STXingkai", "KaiTi", "楷体", serif;
  font-size: clamp(1.35rem, 1.65vw, 1.86rem);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: 0.06em;
  text-shadow: 0 0 20px rgba(88, 208, 255, 0.24);
  white-space: nowrap;
}

.brand-name-en {
  color: rgba(190, 208, 222, 0.88);
  font-size: clamp(0.7rem, 0.82vw, 0.86rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.language-switcher {
  position: relative;
  z-index: 35;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  max-width: 268px;
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
}

.language-switcher select {
  max-width: 128px;
  border: 0;
  background: transparent;
  color: #fff;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  outline: 0;
  cursor: pointer;
}

.language-switcher option {
  color: #102031;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1 0 100%;
  gap: 7px;
  padding-top: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: clamp(12px, 0.92vw, 14px);
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  padding: 6px 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.025);
  color: rgba(237, 243, 248, 0.82);
  line-height: 1.15;
  text-align: center;
  white-space: nowrap;
  word-break: keep-all;
  overflow-wrap: normal;
  transition: color 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  border-color: rgba(88, 208, 255, 0.22);
  background: rgba(88, 208, 255, 0.08);
  color: #fff;
}

.menu-toggle {
  display: none;
  border: 0;
  background: transparent;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  margin: 5px 0;
  background: #fff;
}

.hero {
  position: relative;
  padding: 52px 0 34px;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, rgba(4, 13, 23, 0.96) 0%, rgba(5, 17, 29, 0.9) 42%, rgba(5, 17, 29, 0.66) 70%, rgba(4, 13, 23, 0.83) 100%),
    linear-gradient(135deg, #07131f, #102a3d);
  opacity: 1;
}

.hero-backdrop {
  position: absolute;
  inset: auto auto 58px 50%;
  width: 620px;
  height: 620px;
  transform: translateX(-4%);
  background: radial-gradient(circle, rgba(30, 99, 255, 0.42), transparent 62%);
  filter: blur(18px);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  align-items: start;
}

.hero-copy {
  max-width: 1180px;
}

/* Localized home pages use a compact editorial hero so long translated titles do not dominate the first screen. */

.eyebrow {
  margin-bottom: 16px;
  color: var(--accent);
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2 {
  font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  letter-spacing: -0.03em;
}

.hero h1 {
  max-width: 1120px;
  font-size: clamp(34px, 4.9vw, 60px);
  font-weight: 800;
  text-wrap: balance;
  line-height: 1.02;
}

.hero h1 span {
  display: block;
}

.hero-topline {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  align-items: start;
  margin-top: 12px;
}

.hero-text {
  max-width: 980px;
  margin-top: 0;
  color: rgba(237, 243, 248, 0.8);
  font-size: 15px;
  line-height: 1.72;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
  align-items: stretch;
}

.hero-quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 8px;
}

.hero-quick-links a {
  color: rgba(237, 243, 248, 0.78);
  font-size: 14px;
  text-decoration: underline;
  text-decoration-color: rgba(62, 140, 255, 0.45);
  text-underline-offset: 4px;
}

.hero-actions .btn:first-child {
  min-width: 188px;
}

.hero-quick-links a:hover,
.hero-quick-links a:focus-visible {
  color: #fff;
}

.topbar-meta a,
.hero-quick-links,
.floating-contact,
.faq-cta-actions .btn-primary {
  display: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 156px;
  padding: 15px 24px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #3e8cff);
  color: #fff;
  box-shadow: 0 18px 40px var(--glow);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: linear-gradient(135deg, var(--primary-strong), var(--primary));
}

.btn-secondary {
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.04);
  color: #fff;
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.34);
}


.strategic-grid article,
.advantage-list article,
.cert-panel,
.case-grid article,
.about-highlights article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* Keep the image overlay inside its card so it cannot cover hero action links. */

.hero-copy p,
.strategic-grid p,
.advantage-list p,
.cert-panel li,
.case-grid p,
.about-layout p {
  color: var(--muted);
  line-height: 1.85;
}


.about-highlights strong {
  display: block;
  color: #fff;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-size: 26px;
}


.about-highlights span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

.section {
  padding: 96px 0;
}

.strategic-strip {
  padding-top: 8px;
}

.strategic-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.strategic-grid article,
.advantage-list article,
.case-grid article {
  background: linear-gradient(180deg, rgba(18, 28, 40, 0.9), rgba(10, 17, 26, 0.94));
}

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

.strategic-grid span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-weight: 700;
}

.strategic-grid span {
  width: 48px;
  height: 48px;
  background: rgba(30, 99, 255, 0.12);
  color: var(--accent);
}

.strategic-grid h3,
.advantage-list h3,
.cert-panel h3,
.case-heading h2 {
  margin-top: 18px;
  font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  letter-spacing: -0.02em;
  font-size: 26px;
  line-height: 1.2;
}

.two-column,
.strengths-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 38px;
  align-items: start;
}

.strengths-layout {
  grid-template-columns: minmax(0, 0.78fr) minmax(520px, 1.22fr);
  column-gap: 2em;
  row-gap: 0;
  align-items: start;
}

.section-heading h2 {
  font-size: clamp(34px, 4.2vw, 58px);
  line-height: 1.02;
}

.section-heading-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 10px;
}

/* Keep the distance from every section heading to its content consistent. */
.section-heading {
  margin-bottom: 10px;
}

.heading-note {
  max-width: 520px;
  color: var(--muted);
  line-height: 1.8;
}

.about-layout p + p {
  margin-top: 18px;
}

.about-highlights {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 28px;
}

#about .about-highlights {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 20px;
}

.about-highlights article {
  padding: 22px;
  background: rgba(255, 255, 255, 0.04);
  min-height: 108px;
}

#about .about-highlights article {
  min-height: 92px;
  padding: 18px 20px;
}

.catalog {
  position: relative;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(88, 208, 255, 0.03));
}

.catalog::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 140px;
  background: linear-gradient(180deg, rgba(88, 208, 255, 0.08), transparent);
  pointer-events: none;
}

.products {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0));
}


.test-list li {
  position: relative;
  padding-left: 18px;
  color: rgba(237, 243, 248, 0.86);
  line-height: 1.7;
}


.test-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.8em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}

.strengths {
  background: linear-gradient(180deg, rgba(88, 208, 255, 0.04), rgba(255, 255, 255, 0));
}

#strengths .section-heading h2 {
  max-width: none;
  font-size: clamp(42px, 5.1vw, 72px);
  line-height: 1.05;
  white-space: nowrap;
}

#strengths .strengths-layout > div:first-child {
  display: contents;
}

#strengths .section-heading {
  grid-column: 1 / -1;
}

#strengths .advantage-list {
  grid-column: 1 / 2;
}

#strengths .company-video-card {
  grid-column: 2 / 3;
  grid-row: 2 / 3;
}

#strengths .advantage-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  max-width: none;
}

#strengths .advantage-list article {
  display: grid;
  grid-template-columns: minmax(120px, 0.36fr) minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  min-height: 112px;
  padding: 18px 22px;
}

#strengths .advantage-list h3 {
  margin-top: 0;
  margin-bottom: 0;
}

.cert-panel {
  grid-column: 1 / -1;
  width: 100%;
  margin-top: 10px;
  padding: 18px 20px;
  background: linear-gradient(180deg, #edf4fb, #dfeaf5);
  color: var(--text-dark);
}

.cert-panel h3 {
  margin: 0 0 10px;
  font-size: 23px;
}

.cert-panel h3,
.cert-panel li {
  color: var(--text-dark);
}

.cert-badges {
  display: none;
  flex-wrap: wrap;
  gap: 7px;
  margin: 0 0 12px;
}

.cert-badges span {
  padding: 7px 11px;
  border-radius: 999px;
  background: rgba(16, 32, 49, 0.08);
  font-weight: 700;
}

.cert-doc-links {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 7px;
  margin: 6px 0 12px;
}

.cert-doc-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 5px 7px;
  border: 1px solid rgba(31, 78, 121, 0.18);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.72);
  color: #163b5d;
  font-size: 12px;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.cert-doc-links a:hover,
.cert-doc-links a:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(31, 78, 121, 0.38);
  box-shadow: 0 12px 22px rgba(31, 78, 121, 0.14);
}

.company-video-card {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: minmax(0, 1fr);
  gap: 0;
  align-items: stretch;
  align-self: start;
  margin-top: 0;
  min-height: clamp(452px, 34vw, 540px);
  padding: 20px 24px;
  border: 1px solid rgba(88, 208, 255, 0.18);
  border-radius: 24px;
  background:
    radial-gradient(circle at 0% 0%, rgba(88, 208, 255, 0.16), transparent 42%),
    linear-gradient(135deg, rgba(8, 19, 33, 0.96), rgba(14, 34, 54, 0.92));
  box-shadow: var(--shadow-soft);
}

.company-video-card video {
  display: block;
  width: 100%;
  max-width: none;
  height: auto;
  min-height: 0;
  aspect-ratio: 16 / 9;
  justify-self: center;
  align-self: center;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  background: #050b12;
  object-fit: contain;
}

.company-video-confirm-card .company-video-stage {
  position: relative;
  min-width: 0;
  min-height: 0;
  height: 100%;
  overflow: hidden;
  border-radius: 18px;
  background: #071521;
}

.company-video-poster {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  background: #071521;
  cursor: pointer;
  transition: opacity .2s ease, visibility .2s ease;
}

.company-video-confirm-card .company-video-stage video {
  height: 100%;
  min-height: 0;
  object-fit: contain;
  object-position: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, visibility .2s ease;
}

.company-video-confirm {
  position: absolute;
  left: 12px;
  bottom: 12px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 46px;
  padding: 0 15px 0 11px;
  border: 1px solid rgba(255,255,255,.68);
  border-radius: 14px;
  background: rgba(8,33,53,.9);
  box-shadow: 0 14px 30px rgba(8,33,53,.26);
  color: #fff;
  cursor: pointer;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  backdrop-filter: blur(10px);
  transition: transform .18s ease, background .18s ease, opacity .25s ease, visibility .25s ease;
}

.company-video-confirm:hover,
.company-video-confirm:focus-visible {
  background: rgba(15,108,159,.96);
  transform: translateY(-2px);
}

.company-video-confirm:focus-visible { outline: 3px solid rgba(255,255,255,.9); outline-offset: 4px; }

.company-video-play-icon {
  display: grid;
  place-items: center;
  width: 27px;
  height: 27px;
  border-radius: 50%;
  background: #fff;
}

.company-video-play-icon::after {
  width: 0;
  height: 0;
  margin-left: 2px;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  border-left: 8px solid #0f6c9f;
  content: "";
}

.company-video-confirm-card.is-playing .company-video-confirm { opacity: 0; visibility: hidden; pointer-events: none; }
.company-video-confirm-card.is-playing .company-video-poster { opacity: 0; visibility: hidden; pointer-events: none; }
.company-video-confirm-card.is-playing .company-video-stage video { opacity: 1; visibility: visible; }


.test-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-auto-rows: 40px;
  align-items: stretch;
  gap: 7px;
}

.test-list li {
  display: flex;
  align-items: center;
  min-height: 0;
  padding: 6px 9px 6px 22px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.54);
  color: #12385c;
  font-size: 13px;
  font-weight: 800;
  line-height: 1.2;
}

.test-list li::before {
  left: 9px;
  top: 50%;
  transform: translateY(-50%);
}

.customers {
  background:
    radial-gradient(circle at 16% 10%, rgba(88, 208, 255, 0.08), transparent 32%),
    linear-gradient(180deg, #07111d 0%, #0a111a 100%);
  position: relative;
  overflow: hidden;
}

.customers::before {
  content: "";
  position: absolute;
  inset: 18px;
  pointer-events: none;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 34px;
}

.customers .section-heading {
  position: relative;
  z-index: 1;
  display: block;
  max-width: max-content;
  padding: 20px 34px;
  border: 1px solid rgba(88, 208, 255, 0.32);
  border-radius: 24px;
  background:
    linear-gradient(135deg, rgba(13, 73, 111, 0.62), rgba(10, 17, 26, 0.72));
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(12px);
}

.customers .eyebrow {
  color: #58d0ff;
  letter-spacing: 0.18em;
  margin: 0;
  font-size: clamp(1.6rem, 2.2vw, 2.35rem);
  font-weight: 900;
  text-shadow: 0 0 22px rgba(88, 208, 255, 0.34);
}

/* Compact long-scroll sections so image-heavy blocks feel tighter and more continuous. */
.about,
.catalog,
.products,
.customers {
  padding-top: 56px;
  padding-bottom: 56px;
}

.catalog .section-heading-row,
.products .section-heading-row,
.customers .section-heading-row {
  margin-bottom: 10px;
}

#about {
  padding-bottom: 28px;
}

.case-study {
  padding-top: 12px;
  padding-bottom: 34px;
}

.faq-section {
  padding-top: 40px;
  padding-bottom: 26px;
}

/* Minimum clearance between the product-detail FAQ heading and its cards. */

.case-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) repeat(3, minmax(0, 1fr));
  gap: 20px;
  align-items: stretch;
}

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

.case-grid span {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--accent);
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.contact {
  position: relative;
  padding-top: 40px;
  padding-bottom: 104px;
  background:
    radial-gradient(circle at top right, rgba(88, 208, 255, 0.08), transparent 26%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(88, 208, 255, 0.04));
}

.product-spec-panel {
  position: fixed;
  inset: 0;
  z-index: 70;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(4, 10, 18, 0.78);
  backdrop-filter: blur(14px);
}

.product-spec-panel[hidden] {
  display: none;
}

.product-spec-dialog {
  position: relative;
  width: min(1040px, 100%);
  max-height: min(86vh, 820px);
  overflow: auto;
  padding: 28px;
  border: 1px solid rgba(88, 208, 255, 0.2);
  border-radius: 28px;
  background:
    radial-gradient(circle at top left, rgba(88, 208, 255, 0.14), transparent 34%),
    linear-gradient(180deg, rgba(18, 28, 40, 0.98), rgba(8, 16, 27, 0.99));
  box-shadow: 0 36px 90px rgba(0, 0, 0, 0.42);
}

.product-spec-close {
  position: sticky;
  top: 0;
  float: right;
  z-index: 2;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
}

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

.whatsapp-qr-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(4, 14, 24, 0.72);
  backdrop-filter: blur(8px);
}

.whatsapp-qr-dialog {
  position: relative;
  width: min(100%, 390px);
  padding: 26px;
  border: 1px solid rgba(37, 211, 102, 0.34);
  border-radius: 8px;
  background: #ffffff;
  color: #17212b;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.45);
  text-align: center;
}

.whatsapp-qr-dialog h2 {
  margin: 0 36px 8px;
  color: #123a27;
  font-size: 22px;
  line-height: 1.3;
}

.whatsapp-qr-dialog p {
  margin: 0 auto 16px;
  color: #5c6873;
  font-size: 14px;
  line-height: 1.55;
}

.whatsapp-qr-dialog img {
  display: block;
  width: min(100%, 320px);
  height: auto;
  margin: 0 auto;
  border-radius: 6px;
}

.whatsapp-qr-close {
  position: absolute;
  top: 10px;
  right: 12px;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 50%;
  background: #edf2f0;
  color: #234234;
  cursor: pointer;
  font-size: 26px;
  line-height: 1;
}

.whatsapp-qr-close:hover,
.whatsapp-qr-close:focus-visible {
  background: #d8f5e3;
  outline: 2px solid #25d366;
  outline-offset: 2px;
}

.faq-layout {
  display: grid;
  gap: 18px;
}

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

.faq-card,
.faq-cta {
  padding: 26px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 26px;
  background:
    radial-gradient(circle at top right, rgba(62, 140, 255, 0.12), transparent 34%),
    linear-gradient(180deg, rgba(14, 23, 35, 0.94), rgba(8, 14, 22, 0.98));
  box-shadow: 0 18px 48px rgba(3, 8, 14, 0.22);
}

.faq-card h3,
.faq-cta h3 {
  margin-bottom: 12px;
  font-size: 21px;
  line-height: 1.35;
}

.faq-card p,
.faq-cta p {
  color: rgba(237, 243, 248, 0.76);
  font-size: 15px;
  line-height: 1.78;
}

.faq-cta {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 22px;
  align-items: center;
}

.faq-cta-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.faq-cta-points span,
.rfq-template-meta span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: rgba(237, 243, 248, 0.82);
  font-size: 13px;
  line-height: 1.2;
}

.faq-cta-label {
  display: inline-flex;
  align-items: center;
  margin-bottom: 14px;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(62, 140, 255, 0.12);
  color: #9fd0ff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.faq-cta-actions {
  display: grid;
  gap: 12px;
}

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

.rfq-template {
  display: grid;
  grid-template-columns: minmax(300px, 0.9fr) minmax(420px, 1.25fr);
  gap: 18px 28px;
  align-items: stretch;
  padding: 22px 26px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 26px;
  background:
    radial-gradient(circle at top left, rgba(255, 158, 61, 0.12), transparent 34%),
    linear-gradient(180deg, rgba(14, 23, 35, 0.94), rgba(8, 14, 22, 0.98));
}

.rfq-template-label {
  display: inline-flex;
  align-items: center;
  margin-bottom: 10px;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(255, 158, 61, 0.14);
  color: #ffd4a0;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.rfq-template h3 {
  max-width: 520px;
  margin-bottom: 9px;
  font-size: 21px;
  line-height: 1.28;
}

.rfq-template-copy p,
.rfq-template-box p {
  color: rgba(237, 243, 248, 0.78);
  font-size: 15px;
  line-height: 1.58;
}

.rfq-template-box {
  display: grid;
  gap: 6px;
  padding: 18px 22px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.rfq-template-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.rfq-template-actions {
  display: flex;
  flex-wrap: wrap;
  align-self: end;
  gap: 10px;
  grid-column: 1;
  margin-top: -2px;
}

.floating-contact {
  position: fixed;
  left: 50%;
  bottom: 18px;
  z-index: 30;
  display: none;
  width: min(calc(100% - 28px), 680px);
  transform: translateX(-50%);
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  background: rgba(6, 12, 19, 0.92);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(14px);
  transition: transform 0.24s ease, opacity 0.24s ease;
}

.floating-contact a {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border-radius: 999px;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
}

.floating-contact a:first-child {
  background: rgba(255, 255, 255, 0.08);
}

.floating-contact a:nth-child(2) {
  background: rgba(255, 255, 255, 0.06);
}

.floating-contact a:last-child {
  background: linear-gradient(135deg, var(--primary), #3e8cff);
  box-shadow: 0 12px 28px rgba(30, 99, 255, 0.28);
}

.site-footer {
  border-top: 1px solid var(--line);
  background: linear-gradient(105deg, #07355d 0%, #0b5d8f 52%, #1479a8 100%);
  color: #f5fbff;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 0 36px;
}

.footer-inner strong {
  display: block;
  margin-bottom: 10px;
  font-size: 18px;
}

.footer-inner p {
  color: rgba(239, 248, 255, 0.86);
}

.site-footer .footer-compliance,
.site-footer .visitor-stats { color: rgba(239, 248, 255, 0.78); }
.site-footer .footer-links a { color: #f5fbff; }

.footer-compliance {
  max-width: 760px;
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.7;
}

.footer-compliance span {
  display: block;
}

.visitor-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 12px;
  color: rgba(237, 243, 248, 0.76);
  font-size: 13px;
}

.visitor-stats strong {
  margin-left: 4px;
  color: #fff;
  font-size: 14px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: rgba(237, 243, 248, 0.8);
}

.site-search-panel {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: start center;
  padding: 96px 20px 20px;
  background: rgba(4, 10, 18, 0.72);
  backdrop-filter: blur(12px);
}

.site-search-panel[hidden] {
  display: none;
}

.site-search-dialog {
  width: min(760px, 100%);
  display: grid;
  gap: 14px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(18, 28, 40, 0.96), rgba(10, 17, 26, 0.98));
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.38);
}

.site-search-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.site-search-head strong {
  font-size: 24px;
}

.site-search-close {
  border: 0;
  background: transparent;
  color: rgba(237, 243, 248, 0.72);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}

.site-search-box input {
  width: 100%;
  padding: 15px 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  font: inherit;
}

.site-search-tools {
  display: grid;
  gap: 14px;
}

.site-search-suggestions,
.site-search-recent {
  display: grid;
  gap: 10px;
}

.site-search-group-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.site-search-group-head strong {
  color: #fff;
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-search-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.site-search-chip {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: rgba(237, 243, 248, 0.84);
  font: inherit;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.site-search-chip {
  padding: 8px 14px;
  font-size: 13px;
}

.site-search-chip:hover,
.site-search-chip:focus-visible {
  border-color: rgba(232, 107, 45, 0.38);
  background: rgba(232, 107, 45, 0.12);
  transform: translateY(-1px);
}

.site-search-empty {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.site-search-status {
  color: var(--muted);
  font-size: 14px;
}

.site-search-results {
  display: grid;
  gap: 10px;
  max-height: min(56vh, 520px);
  overflow: auto;
}

@media (max-width: 1180px) {

  .hero-topline {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .hero-grid,
  .two-column,
  .strengths-layout,
  .case-grid {
    grid-template-columns: 1fr;
  }

  
  .strategic-grid,
  .advantage-list,
  .faq-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .company-video-card {
    grid-template-columns: 1fr;
    margin-top: 0;
    min-height: 0;
  }

  #strengths .section-heading,
  #strengths .advantage-list,
  #strengths .company-video-card {
    grid-column: 1 / -1;
    grid-row: auto;
  }

  #strengths .strengths-layout > div:first-child {
    display: block;
  }

  .company-video-card video {
    height: auto;
    min-height: 0;
    aspect-ratio: 16 / 9;
  }

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

  .cert-doc-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (max-width: 860px) {
  .topbar-inner,
  .topbar-meta,
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .visitor-stats {
    gap: 8px 12px;
  }

  .menu-toggle {
    display: block;
  }

  .search-trigger {
    padding: 8px 12px;
  }

  .language-switcher {
    padding: 8px 10px;
  }

  .language-switcher span {
    display: none;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 1px);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    flex: initial;
    gap: 14px;
    padding: 18px 20px 22px;
    border-top: 0;
    background: rgba(8, 14, 22, 0.98);
    border-bottom: 1px solid var(--line);
  }

  section[id] {
    scroll-margin-top: calc(var(--site-header-height, 112px) + 20px);
  }

  .site-nav a {
    justify-content: flex-start;
    width: 100%;
    border-radius: 14px;
    white-space: normal;
    text-align: left;
  }

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

  .hero {
    padding-top: 58px;
  }

  .hero-backdrop {
    display: none;
  }

  .hero h1 {
    font-size: 42px;
  }

  #strengths .section-heading h2 {
    font-size: clamp(30px, 8.2vw, 42px);
    white-space: normal;
  }

  .hero-text {
    font-size: 15px;
  }

  
  .strategic-grid,
  .advantage-list,
  .about-highlights,
  .faq-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  html,
  body {
    max-width: 100%;
    overflow-x: clip;
  }

  .topbar {
    display: none;
  }

  .site-header {
    top: 0;
  }

  html {
    scroll-padding-top: 0;
  }

  body {
    padding-bottom: 112px;
    padding-bottom: calc(112px + env(safe-area-inset-bottom, 0px));
    scroll-padding-bottom: 112px;
    scroll-padding-bottom: calc(112px + env(safe-area-inset-bottom, 0px));
  }

  #about .about-highlights {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  #about .about-highlights article {
    min-height: 104px;
    padding: 16px 14px;
  }

  #about .about-highlights strong {
    font-size: 23px;
    line-height: 1.1;
  }

  #about .about-highlights span {
    font-size: 13px;
    line-height: 1.42;
  }

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

  .section {
    padding: 78px 0;
  }

  .brand {
    gap: 8px;
    padding: 6px 8px;
    border-radius: 14px;
  }

  .brand-mark {
    width: 68px;
  }

  .brand-copy {
    gap: 2px;
    padding-left: 10px;
  }

  .brand-name-cn {
    font-size: 0.94rem;
    letter-spacing: 0.03em;
  }

  .brand-name-en {
    font-size: 0.48rem;
    letter-spacing: 0.02em;
  }

  .nav-wrap {
    gap: 8px;
    padding: 10px 0 8px;
  }

  .nav-actions {
    display: grid;
    grid-template-columns: repeat(3, 34px) minmax(52px, 1fr) minmax(72px, 104px) 38px;
    width: 100%;
    min-width: 0;
    margin-left: 0;
    gap: 6px;
    justify-content: initial;
  }

  .nav-hotline,
  .nav-wechat,
  .nav-whatsapp {
    width: 34px;
    height: 34px;
    flex: 0 0 34px;
  }

  .search-trigger {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 12px;
  }

  .language-switcher {
    min-width: 0;
    width: 100%;
    max-width: 104px;
  }

  .menu-toggle {
    width: 38px;
    height: 38px;
    flex: 0 0 38px;
  }

  .site-search-panel {
    padding: 78px 14px 14px;
  }

  .site-search-dialog {
    padding: 18px;
    border-radius: 18px;
  }

  .site-search-chip-row {
    gap: 8px;
  }

  .site-search-chip {
    padding: 7px 12px;
    font-size: 12px;
  }

  .site-search-head strong {
    font-size: 20px;
  }

  .language-switcher select {
    width: 100%;
    min-width: 0;
    font-size: 13px;
  }

  .hero-copy,
  .hero-copy > *,
  .hero-topline,
  .hero-actions {
    min-width: 0;
    max-width: 100%;
  }

  .hero h1,
  .hero-text {
    overflow-wrap: anywhere;
  }

  .hero h1 {
    font-size: 34px;
  }

  .hero-actions {
    gap: 6px;
    margin-top: 8px;
  }

  .cert-doc-links {
    grid-template-columns: 1fr;
  }

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

  .company-video-card {
    padding: 14px;
    border-radius: 18px;
  }

  .company-video-card video {
    height: auto;
    min-height: 0;
  }

  #strengths .advantage-list article {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 16px;
    min-height: 0;
  }

  #strengths .advantage-list h3 {
    font-size: 19px;
  }

  #strengths .advantage-list p {
    font-size: 13px;
    line-height: 1.62;
  }

  #strengths .company-video-card {
    padding: 14px;
  }

  .about-highlights {
    gap: 10px;
    margin-top: 20px;
  }

  .about-highlights article {
    min-height: 108px;
    padding: 16px 16px 14px;
    border-radius: 18px;
  }

  .about-highlights strong {
    font-size: 24px;
  }

  .about-highlights span {
    margin-top: 4px;
    font-size: 12px;
    line-height: 1.4;
  }

  .hero-actions {
    width: 100%;
  }

  .hero-quick-links {
    gap: 14px;
  }

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

  .product-spec-panel {
    align-items: start;
    padding: 86px 12px 16px;
  }

  .product-spec-dialog {
    max-height: calc(100vh - 108px);
    padding: 18px;
    border-radius: 20px;
  }

  .product-spec-close {
    width: 36px;
    height: 36px;
    font-size: 20px;
  }

  .floating-contact {
    right: 14px;
    left: 14px;
    display: flex;
    gap: 6px;
    width: auto;
    bottom: max(10px, env(safe-area-inset-bottom));
    transform: none;
    padding: 6px;
    border-radius: 999px;
  }

  .floating-contact a {
    min-width: 0;
    min-height: 34px;
    padding: 0 6px;
    font-size: clamp(9px, 2.8vw, 11px);
    line-height: 1.15;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .site-footer {
    padding-bottom: 58px;
  }

  .customers .section-heading {
    padding: 16px 20px;
    border-radius: 18px;
  }

  .customers .eyebrow {
    font-size: clamp(1.25rem, 6vw, 1.65rem);
  }

  .strategic-grid h3,
  .advantage-list h3,
  .cert-panel h3,
  .case-heading h2 {
    font-size: 22px;
  }
}

@media (max-width: 360px) {
  .nav-wechat {
    display: none;
  }
}

@media (max-width: 540px) {
  .nav-actions {
    grid-template-columns: repeat(3, 34px) minmax(0, 1fr);
    max-width: 360px;
    margin-right: auto;
    row-gap: 6px;
  }

  .language-switcher {
    grid-column: 1 / span 3;
    grid-row: 2;
    max-width: none;
  }

  .menu-toggle {
    grid-column: 4;
    grid-row: 2;
    justify-self: end;
  }

  .floating-contact a {
    padding: 0 4px;
    min-height: 38px;
    font-size: clamp(9px, 2.7vw, 10px);
    line-height: 1.2;
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .floating-contact {
    width: calc(100% - 20px);
    max-width: 360px;
    margin: 0 auto;
  }
}

/* Product selection and cards adapt to the usable page width at every breakpoint. */

/* Shared fluid grids keep every page section readable as the viewport changes. */
.section {
  padding-top: clamp(48px, 5vw, 72px);
  padding-bottom: clamp(48px, 5vw, 72px);
}

.strategic-grid {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
}


.faq-grid {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
}

/* Arabic copy reads RTL while the shared technical grid keeps its stable geometry. */
html[lang="ar"],
html[lang="ar"] body { direction: rtl; }
html[lang="ar"] .topbar,
html[lang="ar"] .site-header,
html[lang="ar"] .hero-copy,
html[lang="ar"] .strategic-grid,
html[lang="ar"] .section-heading,
html[lang="ar"] .about-layout,
html[lang="ar"] .site-footer { direction: rtl; }

/* Keep localized homepages readable across scripts and viewport sizes. */

/* Prevent long translated strings from covering adjacent content. */

html[lang="ar"] .cert-badges { direction: ltr; }

html[lang="ar"] .site-header .container,
html[lang="ar"] .topbar .container,
html[lang="ar"] .floating-contact,
html[lang="ar"] .site-search-dialog,
html[lang="ar"] .product-spec-dialog { direction: rtl; }

/* Keep the mobile page inside the viewport while preserving readable controls. */

@media (max-width: 640px) {
  html,
  body {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
  }

  .container {
    width: calc(100% - 28px);
    max-width: none;
  }

  
  .strategic-grid,
  .faq-grid,
  .advantage-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .floating-contact {
    max-width: calc(100% - 28px);
  }

  .floating-contact a {
    flex: 1 1 0;
  }

  .hero h1,
  .section-heading h2 {
    overflow-wrap: anywhere;
  }

  /* Preserve product imagery on narrow screens without changing card layout. */
}

@media (max-width: 760px) {
  html[lang="ar"] .hero-copy {
    width: 100%;
    min-width: 0;
    text-align: right;
  }

  html[lang="ar"] .hero h1 {
    width: calc(100vw - 48px);
    max-width: calc(100vw - 48px) !important;
    margin-left: auto;
    margin-right: 0;
    text-align: right !important;
    font-size: clamp(28px, 8vw, 34px);
    line-height: 1.16;
    text-wrap: wrap;
    overflow-wrap: anywhere;
  }

  html[lang="ar"] .hero-text {
    max-width: 100%;
    font-size: 14px;
    line-height: 1.68;
  }
}

/* Final narrow-screen guardrails: long localized copy must create height,
   never push controls outside the viewport or under the contact bar. */
@media (max-width: 640px) {
  .page-shell,
  main,
  section,
  .container,
  .hero-grid,
  .hero-copy,
  .section-heading,
  .section-heading > *,
  .faq-card {
    min-width: 0;
  }

  .hero h1,
  .section-heading h2,
  .faq-card h3 {
    overflow-wrap: anywhere;
    word-break: normal;
  }

  .hero-actions {
    width: 100%;
    gap: 8px;
  }

  .hero-actions .btn {
    max-width: 100%;
    min-width: 0;
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .floating-contact {
    box-sizing: border-box;
    align-items: stretch;
    padding-bottom: max(6px, env(safe-area-inset-bottom));
  }

  .floating-contact a {
    min-width: 0;
    overflow-wrap: anywhere;
  }

  .site-footer {
    padding-bottom: 86px;
  }
}

/* Bright enterprise-blue visual refresh shared by every language page. */
:root {
  --bg: #f3f7fb;
  --bg-soft: #eaf2f9;
  --surface: #ffffff;
  --surface-2: #f7faff;
  --surface-3: #e8f1f9;
  --text: #17314a;
  --text-dark: #102b45;
  --muted: #5d7286;
  --line: rgba(28, 78, 117, 0.14);
  --line-strong: rgba(22, 93, 157, 0.28);
  --primary: #0b70bf;
  --primary-strong: #075493;
  --accent: #1c9ad6;
  --glow: rgba(11, 112, 191, 0.22);
  --shadow: 0 16px 42px rgba(36, 83, 120, 0.12);
}

body {
  color: var(--text);
  background:
    radial-gradient(circle at 4% 0%, rgba(73, 164, 219, 0.14), transparent 26%),
    radial-gradient(circle at 100% 20%, rgba(31, 117, 184, 0.1), transparent 30%),
    #f3f7fb;
}

main {
  background:
    linear-gradient(180deg, #f7fbff 0%, #edf4fa 42%, #f7fafc 100%);
}

.topbar {
  color: #d8e9f7;
  border-bottom-color: rgba(255, 255, 255, 0.16);
  background: #07355d;
}

.site-header {
  background: rgba(255, 255, 255, 0.94);
  border-bottom-color: rgba(25, 88, 138, 0.12);
  box-shadow: 0 8px 28px rgba(25, 69, 105, 0.1);
}

.site-header a,
.site-header button,
.language-switcher button {
  color: #163956;
}

.hero::before {
  background:
    linear-gradient(106deg, rgba(4, 46, 82, 0.98) 0%, rgba(6, 81, 130, 0.94) 50%, rgba(10, 109, 164, 0.78) 100%),
    linear-gradient(135deg, #07355d, #1c85bd);
}

.hero-backdrop {
  background: radial-gradient(circle, rgba(117, 221, 255, 0.42), transparent 62%);
}

.hero h1,
.hero .hero-text,
.hero .hero-quick-links a {
  color: #fff;
}

.hero-text {
  color: rgba(241, 249, 255, 0.9);
}

.section-heading h2,
.case-heading h2,
.strategic-grid h3,
.advantage-list h3,
.cert-panel h3,
.case-grid h3 {
  color: var(--text-dark);
}

.strategic-grid article,
.advantage-list article,
.case-grid article,
.cert-panel,
.about-highlights article {
  background: rgba(255, 255, 255, 0.94);
  border-color: var(--line);
  box-shadow: var(--shadow);
}

.strategic-grid p,
.advantage-list p,
.cert-panel li,
.case-grid p,
.about-layout p,
.heading-note {
  color: var(--muted);
}

.strategic-grid span {
  color: #0873ba;
  background: #e4f3fc;
}

.about-highlights article {
  background: linear-gradient(145deg, #ffffff, #eff7fc);
}

.about-highlights strong {
  color: #096aad;
}

.btn-primary {
  background: linear-gradient(135deg, #0879c6, #0a5caa);
  box-shadow: 0 13px 28px rgba(8, 101, 177, 0.22);
}

.btn-secondary {
  color: #0d5f9f;
  border-color: rgba(13, 106, 173, 0.28);
  background: rgba(255, 255, 255, 0.86);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  color: #063e71;
  border-color: #1689ce;
  background: #e9f6fd;
}

.products,
.catalog,
.strengths,
.case-study,
.faq-section {
  background: rgba(255, 255, 255, 0.28) !important;
}

.site-footer {
  background: linear-gradient(105deg, #07355d 0%, #0b5d8f 52%, #1479a8 100%) !important;
}

/* Light surfaces always use a consistent, high-contrast text system. */


.faq-card,
.faq-cta,
.rfq-template {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow);
}


.faq-card h3,
.faq-cta h3,
.rfq-template h3 {
  color: var(--text-dark);
}


.faq-card p,
.faq-cta p,
.rfq-template-copy p,
.rfq-template-box p {
  color: var(--muted);
}

.faq-cta-points span,
.rfq-template-meta span {
  color: #315b78;
  border-color: rgba(16, 95, 154, 0.16);
  background: #edf7fd;
}

.faq-cta-label {
  color: #0e65a2;
  background: #e1f3fd;
}

.rfq-template-label {
  color: #a85212;
  background: #fff0e1;
}

.rfq-template-box {
  border-color: rgba(16, 95, 154, 0.14);
  background: #f4f9fc;
}

/* Header sits on white; keep its identity and controls readable. */
.brand {
  border-color: rgba(12, 102, 163, 0.14);
  background: linear-gradient(135deg, #ffffff, #edf7fd);
  box-shadow: 0 10px 24px rgba(26, 83, 122, 0.12);
}

/* Blend the supplied white logo canvas into the shared brand background. */
.brand-mark {
  mix-blend-mode: multiply;
}

.brand-copy {
  border-left-color: rgba(12, 102, 163, 0.2);
}

.brand-name-cn {
  color: #16496f;
  text-shadow: none;
}

.brand-name-en {
  color: #597b95;
}

.search-trigger,
.language-switcher {
  border-color: rgba(13, 102, 163, 0.18);
  background: #edf7fd;
  color: #153d5e;
}

.search-trigger:hover,
.search-trigger:focus-visible {
  background: #dff1fb;
}

.language-switcher select {
  color: #153d5e;
}

/* Historical heading is above the dark timeline canvas and needs dark ink. */

/* The industry application cards deliberately remain dark visual anchors. */

/* Give the oversized strengths heading enough breathing room above its cards. */
#strengths .section-heading {
  margin-bottom: 10px;
  padding-bottom: 4px;
}

/* Product application album uses a soft blue card base to separate pages and copy. */

/* Improve navigation readability on desktop without changing compact mobile controls. */
@media (min-width: 761px) {
  .site-nav {
    gap: 10px;
    font-size: 16px;
  }

  .site-nav a {
    min-height: 38px;
    padding: 8px 13px;
  }
}

/* Keep fixed-header links above decorative layers and reliably clickable. */
.site-header .site-nav,
.site-header .site-nav a {
  position: relative;
  z-index: 2;
  pointer-events: auto;
}

/* Timeline descriptions need a readable size on the wide historical rail. */

/* Match the logo artwork's white field so the header brand reads as one card. */
.brand {
  border-color: #d7e9f5;
  background: #f8fcff;
  box-shadow: 0 8px 20px rgba(33, 86, 122, 0.1);
}

.brand-mark {
  background: #f8fcff;
  mix-blend-mode: multiply;
}

.brand-copy {
  border-left-color: #d7e9f5;
}

/* Lighten the industry application cards while preserving clear text contrast. */

/* Keep the catalog artwork and copy on one continuous light-blue surface. */

/* Leave clear separation below the selector banner before the next section. */

/* Let history text panels size themselves to their content below the dashed stem. */

/* Keep the selection banner in the document flow so it cannot cover content above it. */

/* Keep the banner's rounded top edge below the preceding section. */

/* Keep the three strategic cards compact without touching adjacent sections. */
.strategic-strip {
  padding-top: 28px;
  padding-bottom: 32px;
}

@media (max-width: 640px) {
  .strategic-strip {
    padding-top: 24px;
    padding-bottom: 24px;
  }
}

/* Raise the desktop history cards as one group while preserving their stepped order. */

/* Separate the industry-case cards from the pain-points panel without adding excess space. */

/* Use the smallest safe rhythm between the industry-application panels. */

/* Narrow-screen guardrails: keep localized labels inside the viewport. */
@media (max-width: 640px) {
  html,
  body {
    max-width: 100%;
    overflow-x: hidden;
  }

  .container,
  .section-heading,
  .section-heading-row,
  .hero-grid,
  .footer-inner {
    width: 100%;
    max-width: 100%;
    min-width: 0;
  }

  .floating-contact {
    left: 12px;
    right: 12px;
    width: auto;
    max-width: calc(100vw - 24px);
  }
}

/* Keep heading-to-content spacing consistent across all content cards and sections. */
.section-heading,
.section-heading-row,
.customers .section-heading-row,
#strengths .section-heading {
  margin-bottom: 15px;
}

.hero h1,
.strategic-grid h3,
.advantage-list h3,
.cert-panel h3,
.case-heading h2,
.faq-card h3,
.faq-cta h3,
.rfq-template h3,
.whatsapp-qr-dialog h2,
.case-grid span,
.faq-cta-label,
.rfq-template-label {
  margin-bottom: 15px;
}


#strengths .advantage-list h3 {
  margin-bottom: 15px;
}

/* Keep checklist and parameter descriptions readable on the linked guide pages. */

:root {
  --space-label-title: 10px;
  --space-title-body: 20px;
  --space-card-content: 15px;
}

@media (max-width: 640px) {
  .floating-contact a {
    min-height: 40px;
    padding-inline: 8px;
    font-size: 12px;
  }
}

/* Keep the linked technical guide pages readable with a 20px heading-to-copy rhythm. */

/* Compact the standalone-page tail spacing. */

/* Shared fixes and conversion components. Loaded after the legacy cascade. */
@media (max-width: 860px) {
  .page-shell > .site-header .nav-wrap { display: flex; flex-wrap: wrap; }
  .page-shell > .site-header .site-nav {
    position: absolute; top: calc(100% + 1px); left: 0; right: 0; display: none; flex: initial;
    flex-direction: column; align-items: stretch; gap: 8px; padding: 14px 18px 18px;
    background: #f8fcff; border-top: 1px solid #d7e9f5; border-bottom: 1px solid #d7e9f5;
  }
  .page-shell > .site-header .site-nav a { width: 100%; padding: 9px 12px; color: #16496f; background: #edf7fd; border-color: #d7e9f5; text-align: left; }
  .page-shell > .site-header .menu-toggle span { background: #16496f; }
}
.hero-visual { margin: clamp(42px,5vw,78px) 0 0; overflow: hidden; border: 1px solid rgba(255,255,255,.15); border-radius: 18px; background: #123b5a; box-shadow: 0 20px 42px rgba(5,25,42,.22); align-self: start; }
.hero-visual-card { margin: 0; padding: 0; }
.hero-visual img { display: block; width: 100%; height: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
@media (min-width:861px) { .hero-grid:has(.hero-visual) { grid-template-columns: minmax(0,1.04fr) minmax(420px,.96fr); gap: clamp(30px,3.2vw,58px); align-items: center; } }
@media (max-width:860px) { .hero-visual { margin-top: 24px; } }
@media (min-width:861px) {
  .hero-grid:has(.hero-visual) { grid-template-columns: minmax(0,1.04fr) minmax(420px,.96fr); gap: clamp(30px,3.2vw,58px); align-items: center; }
  .hero-grid:has(.hero-visual) .hero-copy { max-width: min(100%,780px); min-width: 0; }
  .hero-grid:has(.hero-visual) .hero-visual { width: 100%; max-width: 720px; margin-top: 0; justify-self: end; align-self: center; }
  .hero:has(.hero-visual) h1 { max-width: 780px; font-size: clamp(40px,3.6vw,58px) !important; line-height: 1.08; letter-spacing: -.025em; }
  .hero:has(.hero-visual) .hero-text { max-width: 760px; font-size: 15px; line-height: 1.7; }
  .hero:has(.hero-visual) .hero-actions { gap: 10px; margin-top: 16px; }
  .hero:has(.hero-visual) .hero-actions .btn { min-width: 0; min-height: 50px; padding: 12px 22px; white-space: nowrap; }
  .hero-grid:has(.hero-visual) .hero-visual { justify-self: center; transform: translateY(clamp(18px,3vw,42px)); }
}
@media (max-width:1080px) { .hero-grid:has(.hero-visual) { grid-template-columns: 1fr; } .hero-grid:has(.hero-visual) .hero-copy { max-width: 100%; } .hero-grid:has(.hero-visual) .hero-visual { width: 100%; max-width: none; margin-top: 28px; transform: none; } .hero:has(.hero-visual) h1 { max-width: 100%; font-size: clamp(34px,7vw,48px) !important; line-height: 1.12; } }
@media (max-width:560px) { .hero:has(.hero-visual) h1 { font-size: clamp(30px,8.2vw,38px) !important; } .hero:has(.hero-visual) .hero-actions .btn { width: 100%; white-space: normal; } }

/* Keep all four homepage metrics on one shared baseline with matching type. */
.hero-grid:has(.hero-visual) .hero-metrics-row {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  width: 100%;
  margin: 10px 0 0;
}
.hero-grid:has(.hero-visual) .hero-metrics-row article {
  min-height: 0;
  height: auto;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.14);
  color: #fff;
}
.hero-grid:has(.hero-visual) .hero-metrics-row strong,
.hero-grid:has(.hero-visual) .hero-metrics-row span { color: #fff; }
.hero-grid:has(.hero-visual) .hero-metrics-row strong { font-size: clamp(20px,2vw,25px); line-height: 1.15; }
.hero-grid:has(.hero-visual) .hero-metrics-row span { margin-top: 3px; font-size: 12px; line-height: 1.3; overflow-wrap: anywhere; }
@media (max-width:1080px) { .hero-grid:has(.hero-visual) .hero-metrics-row { grid-column: 1; grid-template-columns: repeat(4,minmax(0,1fr)); margin: 0; } }
@media (max-width:560px) { .hero-grid:has(.hero-visual) .hero-metrics-row { grid-template-columns: repeat(2,minmax(0,1fr)); } }
#products { content-visibility: visible !important; contain: none !important; }
#products { content-visibility: visible !important; contain: none !important; visibility: visible !important; opacity: 1 !important; }
@media (min-width:861px) { body:not([data-section]) main > .section:not(.hero) { content-visibility: auto; contain-intrinsic-size: 680px; } }
.section:not(.hero) p,.section:not(.hero) li,.section:not(.hero) .faq-card p,.section:not(.hero) .about-layout p,.section:not(.hero) .section-heading > p:not(.eyebrow) { color: #334e68 !important; }
.section:not(.hero) .eyebrow { color: #0b6da8 !important; }
input::placeholder { color: #526b82 !important; opacity: 1; }
.site-nav a,.page-shell > .site-header .site-nav a { color: #123b5d !important; }
.home-scenarios { background: #f5f8fb; }
.home-scenarios-grid { display: grid !important; grid-template-columns: repeat(2,minmax(0,1fr)) !important; gap: 18px; }
.home-scenario-card { position: relative; display: block; aspect-ratio: 16 / 7; min-height: 0; overflow: hidden; border-radius: 10px; background: #123653; box-shadow: 0 8px 24px rgba(18,54,83,.12); }
.home-scenario-card img { display: block; width: 100%; height: 100%; min-height: 0; object-fit: cover; transition: transform .35s ease; }
.home-scenario-card:hover img { transform: scale(1.03); }
.home-scenario-caption { position: absolute; inset: auto 0 0; padding: 58px 22px 20px; color: #fff; background: linear-gradient(transparent,rgba(4,22,37,.9)); }
.home-scenario-caption strong { display: block; font-size: 26px; line-height: 1.25; }
.home-scenario-cta { display: block; margin-top: 8px; color: #fff; font-size: 14px; font-weight: 600; text-decoration: underline; }
@media (max-width:700px) { .home-scenarios-grid { display: flex; overflow-x: auto; gap: 12px; padding-bottom: 8px; scroll-snap-type: x mandatory; } .home-scenario-card { flex: 0 0 86%; aspect-ratio: 4 / 3; min-height: 0; scroll-snap-align: start; } .home-scenario-card img { min-height: 0; } .home-scenario-caption { padding: 72px 18px 18px; } .home-scenario-caption strong { font-size: 24px; } .home-scenario-cta { margin-top: 6px; font-size: 14px; } }

/* Chinese homepage only: keep hero copy and factory image aligned while metrics reflow. */
.hero-grid:has(.hero-visual) {
  align-items: stretch;
}
.hero-grid:has(.hero-visual) .hero-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.hero-grid:has(.hero-visual) .hero-visual {
  width: 100%;
  min-width: 0;
  align-self: stretch;
}
@media (max-width: 1080px) {
  .hero-grid:has(.hero-visual) { align-items: start; }
  .hero-grid:has(.hero-visual) .hero-visual { align-self: start; }
}

/* Homepage hero refinement: compact metrics and a full-bleed factory image. */
.hero-grid:has(.hero-visual) .hero-visual {
  align-self: start;
  height: auto;
  aspect-ratio: 3 / 2;
  background: #123b5a;
}
.hero-grid:has(.hero-visual) .hero-visual-card {
  display: block;
  width: 100%;
  height: 100%;
}
.hero-grid:has(.hero-visual) .hero-visual img {
  width: 100%;
  height: 100%;
  aspect-ratio: auto;
  object-fit: cover;
  object-position: center;
}
@media (max-width: 1080px) {
  .hero-grid:has(.hero-visual) .hero-visual {
    aspect-ratio: 3 / 2;
  }
}