/* Minimal editorial refresh for Qianbian Kehua. */
:root {
  --bg-white: #ffffff;
  --bg-light: #f6f7f8;
  --text-dark: #101113;
  --text-gray: #6b6f76;
  --blue: #0b5cff;
  --blue-hover: #004ee6;
  --border-light: #e4e7eb;
  --ink: #101113;
  --ink-soft: #555b63;
  --line: #e4e7eb;
  --brand-blue: #0b5cff;
  --brand-cyan: #1aa7b7;
  --surface: #ffffff;
  --surface-muted: #f6f7f8;
  --shadow-sm: 0 1px 2px rgba(16, 17, 19, 0.04);
  --shadow-md: 0 18px 44px rgba(16, 17, 19, 0.08);
  --shadow-lg: 0 26px 72px rgba(16, 17, 19, 0.12);
  --shadow-enterprise: 0 18px 44px rgba(16, 17, 19, 0.08);
}

*,
*::before,
*::after {
  letter-spacing: 0 !important;
}

html {
  scroll-padding-top: 82px;
}

body {
  background:
    linear-gradient(180deg, #ffffff 0, #ffffff 56vh, #f7f8fa 100%);
  color: var(--ink);
  font-feature-settings: "kern";
}

#particles-bg {
  display: none;
}

.nav {
  background: rgba(255, 255, 255, 0.86);
  border-bottom: 1px solid rgba(16, 17, 19, 0.08);
  box-shadow: none;
  color: var(--ink);
}

.nav-inner {
  max-width: 1200px;
  height: 64px;
  padding: 0 32px;
}

.nav-logo {
  color: var(--ink);
  opacity: 1;
  text-shadow: none;
}

.nav-logo:hover {
  transform: none;
}

.nav-links {
  gap: 2px;
}

.nav-links a {
  color: #2b2f35;
  min-height: 36px;
  padding: 0 12px;
  font-size: 0.84rem;
  font-weight: 500;
  opacity: 0.74;
  text-shadow: none;
  border-radius: 4px;
  transition: color 0.2s ease, background 0.2s ease, opacity 0.2s ease;
}

.nav-links a:hover {
  color: var(--ink);
  background: rgba(16, 17, 19, 0.05);
  opacity: 1;
  transform: none;
  text-shadow: none;
}

.nav-search-btn {
  color: #2b2f35;
  border-radius: 4px;
}

.nav-search-btn:hover {
  color: var(--ink);
  background: rgba(16, 17, 19, 0.05);
}

.hamburger span {
  background: var(--ink);
  box-shadow: none;
}

.hero {
  min-height: 90vh;
  padding: 132px 24px 72px;
  color: #fff;
  text-align: left;
  align-items: stretch;
  justify-content: flex-end;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.72) 0%, rgba(0, 0, 0, 0.44) 46%, rgba(0, 0, 0, 0.14) 100%),
    linear-gradient(180deg, rgba(0, 0, 0, 0.08) 0%, rgba(0, 0, 0, 0.46) 100%),
    url("product-bg/hero-smart-park.jpg?v=hero-clean-20260529") center/cover no-repeat;
}

.hero::after {
  height: 112vh;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0), #ffffff);
}

.hero-content {
  width: min(100%, 1200px);
  max-width: 1200px;
  margin: 0 auto 42px;
}

.hero-eyebrow,
.section-eyebrow,
.brand-kicker,
.modal-label {
  text-transform: none;
  font-size: 0.82rem;
  font-weight: 600;
}

.hero-eyebrow {
  color: rgba(255, 255, 255, 0.76);
  margin-bottom: 18px;
}

.hero h1 {
  max-width: 760px;
  margin-bottom: 18px;
  color: #fff;
  font-size: 5rem;
  font-weight: 680;
  line-height: 1.03;
  text-wrap: balance;
}

.hero h1 .brand {
  color: inherit;
}

.hero-subtitle {
  max-width: 650px;
  margin: 0 0 34px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.22rem;
  line-height: 1.72;
}

.hero-actions {
  justify-content: flex-start;
  gap: 12px;
  margin-bottom: 0;
}

.btn {
  min-height: 44px;
  padding: 0 22px;
  border-radius: 4px;
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1;
}

.btn-primary {
  background: var(--brand-blue);
  color: #fff;
}

.btn-primary:hover {
  background: var(--blue-hover);
  transform: translateY(-1px);
}

.btn-outline,
.section-white .btn-outline,
.section-light .btn-outline,
.cta-section .btn-outline {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.48);
  color: #fff;
}

.hero-trust {
  width: min(100%, 1200px);
  max-width: 1200px;
  margin: 0 auto;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  overflow: hidden;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.trust-card {
  min-height: 132px;
  align-items: flex-start;
  padding: 22px;
  text-align: left;
  background: rgba(255, 255, 255, 0.09);
  border: 0;
  border-radius: 0;
  color: #fff;
}

.trust-card:hover {
  transform: none;
}

.trust-card .trust-icon {
  width: 34px;
  height: 34px;
  margin: 0 0 14px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.12);
}

.trust-card .trust-icon svg {
  width: 18px;
  height: 18px;
}

.trust-card .trust-title {
  margin-bottom: 5px;
  font-size: 0.96rem;
}

.trust-card .trust-desc {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.82rem;
  line-height: 1.65;
}

.section {
  padding: 104px 0;
}

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

.section-inner,
.footer-inner,
.cta-inner {
  max-width: 1200px;
  padding-inline: 32px;
}

.section-header {
  max-width: 800px;
  margin-bottom: 54px;
  text-align: left;
}

.section-eyebrow {
  color: var(--brand-blue);
  margin-bottom: 14px;
}

.section h2,
.cta-inner h2,
.modal-title {
  font-size: 3.35rem;
  font-weight: 650;
  line-height: 1.08;
  color: var(--ink);
  text-wrap: balance;
}

.section-desc,
.cta-inner p {
  max-width: 660px;
  margin-left: 0;
  color: var(--ink-soft);
  font-size: 1.04rem;
  line-height: 1.75;
}

.stats-row {
  margin-top: -44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
}

.stat-item {
  padding: 30px 18px;
  border-right: 1px solid var(--line);
}

.stat-item:last-child {
  border-right: 0;
}

.stat-value {
  color: var(--ink);
  -webkit-text-fill-color: var(--ink);
  font-size: 2.4rem;
  font-weight: 650;
}

.stat-label {
  color: var(--ink);
  font-size: 0.9rem;
}

.stat-desc {
  color: var(--ink-soft);
}

.solutions-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--line);
}

.solution-card {
  min-height: 370px;
  padding: 26px;
  border-radius: 0;
  box-shadow: none;
}

.solution-card::before,
.service-card::before {
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.04), rgba(0, 0, 0, 0.74));
}

.solution-card:hover,
.service-card:hover,
.case-card:hover,
.product-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.solution-card h3 {
  font-size: 1.32rem;
  line-height: 1.22;
}

.solution-list {
  gap: 8px;
}

.solution-list li {
  font-size: 0.84rem;
  line-height: 1.55;
}

.arch-diagram {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--line);
}

.arch-layer {
  padding: 18px 22px;
  border: 0 !important;
  border-radius: 0 !important;
  background: #fff !important;
  color: var(--ink) !important;
  font-size: 0.92rem;
  text-align: left;
}

.arch-arrow {
  display: none;
}

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

.service-card {
  min-height: 300px;
  border-radius: 8px;
  box-shadow: none;
}

.service-card .card-icon {
  width: 42px;
  height: 42px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.service-card h3 {
  font-size: 1.24rem;
}

.service-card p {
  font-size: 0.9rem;
  line-height: 1.68;
}

.support-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 18px;
}

.support-panel,
.support-card,
.qual-item,
.product-card,
.brand-card,
.contact-form,
.modal-container,
.search-box {
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
}

.support-panel {
  background: #101113;
  color: #fff;
  padding: 34px;
}

.support-panel h3 {
  font-size: 1.55rem;
  line-height: 1.22;
}

.support-panel p {
  color: rgba(255, 255, 255, 0.72);
}

.support-metrics {
  gap: 1px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
}

.support-metric {
  background: rgba(255, 255, 255, 0.06);
  padding: 18px;
}

.support-metric strong {
  color: #fff;
  font-size: 1.42rem;
}

.support-metric span {
  color: rgba(255, 255, 255, 0.66);
}

.support-grid {
  gap: 18px;
}

.support-card,
.qual-item {
  background: #fff;
  padding: 24px;
}

.support-card h3,
.qual-item h4 {
  color: var(--ink);
  font-size: 1.02rem;
}

.support-card p,
.qual-item p,
.support-local {
  color: var(--ink-soft);
  line-height: 1.72;
}

.support-icon,
.qual-icon,
.product-icon {
  color: var(--brand-blue);
}

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

.product-card {
  background: #fff;
  overflow: hidden;
}

.product-media {
  min-height: 122px;
  filter: saturate(0.82) contrast(1.02);
}

.product-card .product-icon {
  width: 44px;
  height: 44px;
  margin: -22px 20px 16px;
  border-radius: 4px;
  box-shadow: 0 12px 24px rgba(16, 17, 19, 0.12);
}

.product-tag {
  width: fit-content;
  border-radius: 4px !important;
  background: #f0f3f7 !important;
  color: var(--ink-soft) !important;
}

.product-card h4 {
  min-height: 58px;
  color: var(--ink);
  font-size: 1.02rem;
  line-height: 1.36;
}

.product-card .card-link {
  color: var(--brand-blue);
}

.cases-grid {
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 18px;
}

.case-card {
  grid-column: span 2;
  min-height: 300px;
  border-radius: 8px;
  box-shadow: none;
  filter: saturate(0.88);
}

.case-card:first-child,
.case-card:nth-child(15) {
  grid-column: span 3;
  min-height: 390px;
}

.case-card::before {
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.06), rgba(0, 0, 0, 0.78));
}

.case-card .case-meta span {
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.86);
}

.case-card h4 {
  font-size: 1.06rem;
  line-height: 1.38;
}

.case-card p {
  font-size: 0.86rem;
  line-height: 1.68;
}

.case-card .case-result {
  color: #fff;
  font-size: .82rem;
}

.brand-intro {
  max-width: 720px;
  margin: 0 0 20px;
  text-align: left;
  line-height: 1.72;
}

.brand-proof {
  justify-content: flex-start;
  margin-bottom: 28px;
}

.brand-proof span {
  border-radius: 4px;
  background: #fff;
  border-color: var(--line);
  color: var(--ink-soft);
}

.brand-wall {
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 1px;
  max-width: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--line);
}

.brand-card {
  min-height: 116px;
  padding: 16px 10px;
  border: 0;
  border-radius: 0;
  background: #fff;
}

.brand-card:hover {
  transform: none;
  box-shadow: none;
  background: #f9fafb;
}

.brand-logo-img {
  width: 118px;
  height: 34px;
}

.brand-logo-wide,
.brand-logo-sangfor {
  width: 124px;
}

.brand-name {
  color: var(--ink-soft);
  font-size: 0.7rem;
}

.quals-grid {
  margin-top: 36px;
  gap: 18px;
}

.delivery-flow {
  gap: 18px;
}

.delivery-flow::before {
  background: var(--line);
}

.flow-step {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 22px;
}

.flow-step-num {
  background: var(--ink);
  color: #fff;
  border-radius: 4px;
}

.flow-step h5 {
  color: var(--ink);
}

.flow-step p {
  color: var(--ink-soft);
}

.cta-section {
  padding: 106px 0;
  color: #fff;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.86) 0%, rgba(0, 0, 0, 0.72) 48%, rgba(0, 0, 0, 0.42) 100%),
    url("product-bg/contact-business-meeting.jpg?v=contact-20260529") center/cover no-repeat;
}

.cta-inner {
  text-align: left;
}

.cta-inner h2 {
  color: #fff;
}

.cta-inner p {
  color: rgba(255, 255, 255, 0.76);
}

.cta-phone a {
  color: #fff;
}

.cta-actions {
  justify-content: flex-start;
}

.contact-form {
  max-width: 760px;
  margin: 36px 0 0;
  padding: 26px;
  background: rgba(255, 255, 255, 0.96);
}

.form-field input,
.form-field textarea,
.form-field select,
.search-input {
  border-radius: 4px;
  border-color: var(--line);
  background: #fff;
}

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus,
.search-input:focus {
  border-color: var(--brand-blue);
  box-shadow: 0 0 0 3px rgba(11, 92, 255, 0.12);
}

.footer {
  background: #101113;
}

.footer-top {
  grid-template-columns: 1.4fr 0.8fr 1fr;
}

.mobile-float-contact {
  border-radius: 4px;
  background: var(--brand-blue);
}

.modal-overlay {
  background: rgba(16, 17, 19, 0.54);
}

.modal-container {
  background: #fff;
}

.modal-container::before {
  opacity: 0.04;
}

.modal-title {
  color: var(--ink);
}

.modal-section h5 {
  color: var(--ink-soft);
}

.modal-section ul li {
  color: var(--ink-soft);
  line-height: 1.7;
}

.search-box {
  border-radius: 8px;
}

@media (max-width: 1180px) {
  .nav-inner,
  .section-inner,
  .footer-inner,
  .cta-inner {
    padding-inline: 24px;
  }

  .solutions-grid,
  .products-grid,
  .brand-wall {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .case-card,
  .case-card:first-child,
  .case-card:nth-child(15) {
    grid-column: span 1;
  }

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

@media (max-width: 768px) {
  html {
    scroll-padding-top: 66px;
  }

  .nav-inner {
    height: 56px;
    grid-template-columns: 40px 1fr 40px;
    padding-inline: 18px;
  }

  .nav-left {
    justify-content: center;
  }

  .nav-logo {
    justify-self: center;
  }

  .nav-links {
    top: 56px;
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid var(--line);
  }

  .nav-links a {
    color: var(--ink);
  }

  .hero {
    min-height: 86vh;
    padding: 104px 18px 44px;
    background-position: center center, center center, 30% center;
  }

  .hero-content {
    margin-bottom: 30px;
  }

  .hero h1 {
    font-size: 3.2rem;
    line-height: 1.05;
  }

  .hero-subtitle {
    font-size: 1rem;
    line-height: 1.68;
  }

  .hero-actions {
    gap: 10px;
  }

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

  .hero-trust,
  .solutions-grid,
  .services-grid,
  .products-grid,
  .cases-grid,
  .stats-row,
  .brand-wall,
  .footer-top {
    grid-template-columns: 1fr;
  }

  .trust-card {
    min-height: auto;
    padding: 18px;
  }

  .section {
    padding: 76px 0;
  }

  .section-inner,
  .footer-inner,
  .cta-inner {
    padding-inline: 18px;
  }

  .section-header {
    margin-bottom: 36px;
  }

  .section h2,
  .cta-inner h2 {
    font-size: 2.35rem;
    line-height: 1.12;
  }

  .section-desc,
  .cta-inner p {
    font-size: 0.98rem;
  }

  .stat-item {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .stat-item:last-child {
    border-bottom: 0;
  }

  .solution-card,
  .service-card,
  .case-card {
    min-height: 260px;
  }

  .case-card,
  .case-card:first-child,
  .case-card:nth-child(15) {
    grid-column: auto;
  }

  .contact-form {
    padding: 20px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2.72rem;
  }

  .btn {
    padding-inline: 18px;
  }

  .section h2,
  .cta-inner h2 {
    font-size: 2rem;
  }

  .brand-card {
    min-height: 98px;
  }
}

/* Second-pass polish: quieter brand system and tighter interaction states. */
::selection {
  background: rgba(11, 92, 255, 0.16);
  color: var(--ink);
}

.nav {
  backdrop-filter: saturate(160%) blur(22px);
  -webkit-backdrop-filter: saturate(160%) blur(22px);
}

.nav-logo svg {
  width: 112px;
  height: 30px;
}

.nav-logo polygon {
  fill: currentColor;
}

.nav-logo polygon:nth-of-type(1) {
  opacity: 0.92;
}

.nav-logo polygon:nth-of-type(2) {
  opacity: 0.72;
}

.nav-logo polygon:nth-of-type(3) {
  opacity: 0.5;
}

.nav-logo svg text {
  fill: currentColor;
  font-weight: 650;
}

.hero {
  background-position: center center, center center, 58% center;
}

.hero-content,
.hero-trust {
  transform: translateY(8px);
}

.hero-subtitle {
  text-shadow: 0 1px 20px rgba(0, 0, 0, 0.28);
}

.btn {
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn:focus-visible,
.nav-links a:focus-visible,
.nav-search-btn:focus-visible,
.hamburger:focus-visible,
.solution-card:focus-visible,
.service-card:focus-visible,
.product-card:focus-visible,
.case-card:focus-visible {
  outline: 3px solid rgba(11, 92, 255, 0.28);
  outline-offset: 3px;
}

.section-header::after {
  content: "";
  display: block;
  width: 48px;
  height: 2px;
  margin-top: 26px;
  background: var(--brand-blue);
}

.solution-card,
.service-card,
.case-card {
  isolation: isolate;
}

.solution-card::after,
.service-card::after,
.case-card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  border: 1px solid rgba(255, 255, 255, 0.16);
  pointer-events: none;
}

.solution-card > *,
.service-card > *,
.case-card > * {
  z-index: 1;
}

.solution-card .card-link,
.service-card .card-link,
.product-card .card-link {
  font-weight: 650;
}

.support-card,
.qual-item,
.product-card,
.flow-step {
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.support-card:hover,
.qual-item:hover,
.flow-step:hover {
  border-color: rgba(16, 17, 19, 0.16);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.brand-logo-img {
  filter: grayscale(1);
  opacity: 0.76;
  transition: filter 0.2s ease, opacity 0.2s ease, transform 0.2s ease;
}

.brand-card:hover .brand-logo-img {
  filter: grayscale(0);
  opacity: 1;
  transform: translateY(-1px);
}

.contact-form {
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.contact-form .btn-primary {
  background: var(--brand-blue);
  color: #fff;
}

.contact-form .btn-primary:hover {
  background: var(--blue-hover);
  color: #fff;
}

.form-submit {
  justify-content: flex-start;
}

.form-alert {
  border-radius: 4px;
}

.footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

@media (max-width: 768px) {
  .nav {
    background: rgba(255, 255, 255, 0.94);
  }

  .nav-logo svg {
    width: 106px;
  }

  .nav-links.open {
    padding: 14px 18px 18px;
    box-shadow: 0 18px 48px rgba(16, 17, 19, 0.08);
  }

  .nav-links a {
    min-height: 42px;
    border-radius: 4px;
  }

  .hero-content,
  .hero-trust {
    transform: none;
  }

  .section-header::after {
    margin-top: 20px;
  }

  .form-submit .btn {
    width: 100%;
  }
}

/* TwelveLabs-inspired direction: dark product narrative, precise grids. */
body {
  background: #050608;
}

.nav {
  background: rgba(5, 6, 8, 0.72);
  border-bottom-color: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.nav-logo,
.nav-links a,
.nav-search-btn {
  color: rgba(255, 255, 255, 0.88);
}

.nav-links a:hover,
.nav-search-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.hamburger span {
  background: #fff;
}

.hero {
  min-height: 96vh;
  padding-top: 126px;
  background:
    linear-gradient(90deg, rgba(5, 6, 8, 0.95) 0%, rgba(5, 6, 8, 0.7) 50%, rgba(5, 6, 8, 0.34) 100%),
    linear-gradient(180deg, rgba(5, 6, 8, 0.1) 0%, #050608 100%),
    url("product-bg/hero-smart-park.jpg?v=hero-clean-20260529") 62% center/cover no-repeat;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(90deg, rgba(0, 0, 0, 0.8), transparent 72%);
  pointer-events: none;
}

.hero::after {
  height: 34vh;
  background: linear-gradient(180deg, rgba(5, 6, 8, 0), #050608);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  margin-bottom: 26px;
  padding: 0 12px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.8rem;
  font-weight: 600;
}

.hero-eyebrow {
  margin-bottom: 12px;
  color: rgba(255, 255, 255, 0.62);
}

.hero h1 {
  margin-bottom: 18px;
  color: rgba(255, 255, 255, 0.92);
  font-size: 1.08rem;
  font-weight: 650;
}

.hero-statement {
  max-width: 860px;
  margin: 0 0 26px;
  color: #fff;
  font-size: 5.25rem;
  font-weight: 680;
  line-height: 0.98;
  text-wrap: balance;
}

.hero-subtitle {
  max-width: 720px;
  color: rgba(255, 255, 255, 0.72);
}

.btn-primary {
  background: #fff;
  color: #050608;
}

.btn-primary:hover {
  background: rgba(255, 255, 255, 0.86);
  color: #050608;
}

.btn-outline,
.section-white .btn-outline,
.section-light .btn-outline,
.cta-section .btn-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.24);
  color: #fff;
}

.hero-trust {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.13);
}

.trust-card {
  background: rgba(255, 255, 255, 0.04);
}

.platform-brief {
  position: relative;
  z-index: 1;
  padding: 108px 0;
  background: #050608;
  color: #fff;
}

.platform-brief::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
}

.platform-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: 56px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  align-items: center;
}

.platform-label {
  display: block;
  margin-bottom: 18px;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.78rem;
  font-weight: 700;
}

.platform-copy h2 {
  margin: 0 0 22px;
  color: #fff;
  font-size: 3.35rem;
  font-weight: 650;
  line-height: 1.05;
  text-wrap: balance;
}

.platform-copy p {
  max-width: 560px;
  color: rgba(255, 255, 255, 0.64);
  font-size: 1.02rem;
  line-height: 1.78;
}

.platform-console {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.055);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.console-top,
.console-row {
  display: grid;
  grid-template-columns: 76px 0.8fr 1.2fr;
  gap: 18px;
  align-items: center;
  min-height: 76px;
  padding: 0 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.console-top {
  grid-template-columns: 1fr auto;
  min-height: 64px;
  color: rgba(255, 255, 255, 0.54);
  font-size: 0.82rem;
}

.console-top strong {
  color: rgba(255, 255, 255, 0.88);
}

.console-row:last-child {
  border-bottom: 0;
}

.console-row span {
  color: rgba(255, 255, 255, 0.38);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88rem;
}

.console-row strong {
  color: #fff;
  font-size: 1rem;
}

.console-row em {
  color: rgba(255, 255, 255, 0.58);
  font-style: normal;
  line-height: 1.5;
}

.section-white,
.section-light {
  background: #f5f6f8;
}

.section-white[style] {
  padding-top: 0 !important;
  background: #050608;
}

.section-white[style] .stats-row {
  margin-top: 0;
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
}

.section-white[style] .stat-item {
  border-right-color: rgba(255, 255, 255, 0.12);
}

.section-white[style] .stat-value,
.section-white[style] .stat-label {
  color: #fff;
  -webkit-text-fill-color: #fff;
}

.section-white[style] .stat-desc {
  color: rgba(255, 255, 255, 0.56);
}

#solutions,
#products,
#credentials {
  background: #050608;
  color: #fff;
}

#solutions .section h2,
#solutions h2,
#products h2,
#credentials h2 {
  color: #fff;
}

#solutions .section-desc,
#products .section-desc,
#credentials .section-desc,
#credentials .brand-intro {
  color: rgba(255, 255, 255, 0.62);
}

#solutions .section-header::after,
#products .section-header::after,
#credentials .section-header::after {
  background: rgba(255, 255, 255, 0.42);
}

#services,
#support,
#cases {
  background: #f5f6f8;
}

.solutions-grid,
.arch-diagram,
.brand-wall {
  border-color: rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.12);
}

.arch-layer,
.brand-card {
  background: rgba(255, 255, 255, 0.055) !important;
  color: rgba(255, 255, 255, 0.76) !important;
}

.brand-card:hover {
  background: rgba(255, 255, 255, 0.08) !important;
}

.brand-name {
  color: rgba(255, 255, 255, 0.56);
}

.brand-proof span {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.66);
}

@media (max-width: 1180px) {
  .platform-inner {
    grid-template-columns: 1fr;
    padding-inline: 24px;
  }

  .hero-statement {
    font-size: 4.4rem;
  }
}

@media (max-width: 768px) {
  .nav {
    background: rgba(5, 6, 8, 0.9);
  }

  .nav-links.open {
    background: rgba(5, 6, 8, 0.96);
    border-bottom-color: rgba(255, 255, 255, 0.1);
  }

  .nav-links a {
    color: rgba(255, 255, 255, 0.84);
  }

  .hero {
    min-height: 92vh;
    background-position: center center, center center, 42% center;
  }

  .hero-badge {
    min-height: auto;
    padding: 8px 10px;
    border-radius: 4px;
    line-height: 1.4;
  }

  .hero h1 {
    font-size: 1rem;
  }

  .hero-statement {
    font-size: 3.18rem;
    line-height: 1.02;
  }

  .platform-brief {
    padding: 76px 0;
  }

  .platform-inner {
    gap: 34px;
    padding-inline: 18px;
  }

  .platform-copy h2 {
    font-size: 2.28rem;
  }

  .console-top,
  .console-row {
    grid-template-columns: 1fr;
    gap: 7px;
    min-height: auto;
    padding: 18px;
  }

  .console-top {
    grid-template-columns: 1fr;
  }

  .section-white[style] .stat-item {
    border-right: 0;
    border-bottom-color: rgba(255, 255, 255, 0.12);
  }
}

@media (max-width: 480px) {
  .hero-statement {
    font-size: 2.64rem;
  }

  .platform-copy h2 {
    font-size: 2rem;
  }
}

/* Final white flagship direction: TwelveLabs-like motion, Qianbian Kehua tone. */
body {
  background: #ffffff;
  color: #08090b;
}

.nav {
  background: rgba(255, 255, 255, 0.82);
  border-bottom-color: rgba(8, 9, 11, 0.08);
  color: #08090b;
}

.nav-logo,
.nav-links a,
.nav-search-btn {
  color: rgba(8, 9, 11, 0.82);
}

.nav-links a:hover,
.nav-search-btn:hover {
  color: #08090b;
  background: rgba(8, 9, 11, 0.06);
}

.hamburger span {
  background: #08090b;
}

.hero {
  min-height: 96vh;
  overflow: hidden;
  padding: 128px 24px 72px;
  color: #08090b;
  text-align: center;
  align-items: center;
  justify-content: center;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.8), #ffffff 76%),
    #ffffff;
}

.hero::before {
  inset: 0;
  background-image:
    linear-gradient(rgba(8, 9, 11, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(8, 9, 11, 0.055) 1px, transparent 1px);
  background-size: 76px 76px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 86%);
  animation: qbk-grid-drift 18s linear infinite;
}

.hero::after {
  height: 34vh;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0), #ffffff);
}

.hero-motion {
  position: absolute;
  inset: 82px 0 auto;
  height: 520px;
  overflow: hidden;
  pointer-events: none;
}

.hero-motion::before,
.hero-motion::after {
  content: "";
  position: absolute;
  left: 50%;
  width: min(980px, calc(100vw - 36px));
  transform: translateX(-50%);
  border: 1px solid rgba(8, 9, 11, 0.08);
  border-radius: 8px;
}

.hero-motion::before {
  top: 60px;
  height: 250px;
}

.hero-motion::after {
  top: 118px;
  height: 132px;
  background:
    linear-gradient(90deg, transparent, rgba(11, 92, 255, 0.08), transparent),
    rgba(255, 255, 255, 0.26);
  animation: qbk-panel-scan 6s ease-in-out infinite;
}

.hero-motion span {
  position: absolute;
  left: 50%;
  width: min(920px, calc(100vw - 72px));
  height: 1px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, rgba(11, 92, 255, 0.7), transparent);
  opacity: 0.55;
  animation: qbk-rail-scan 7s linear infinite;
}

.hero-motion span:nth-child(1) {
  top: 92px;
}

.hero-motion span:nth-child(2) {
  top: 168px;
  animation-delay: -1.8s;
}

.hero-motion span:nth-child(3) {
  top: 244px;
  animation-delay: -3.2s;
}

.hero-motion span:nth-child(4) {
  top: 318px;
  animation-delay: -4.7s;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1080px;
  margin: 0 auto 48px;
  transform: none;
}

.hero-badge {
  min-height: 36px;
  margin-bottom: 24px;
  border-color: rgba(8, 9, 11, 0.12);
  background: rgba(255, 255, 255, 0.72);
  color: rgba(8, 9, 11, 0.66);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.hero-eyebrow {
  color: rgba(8, 9, 11, 0.54);
}

.hero h1 {
  color: rgba(8, 9, 11, 0.74);
}

.hero-statement {
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
  color: #08090b;
  font-size: 5.6rem;
  line-height: 0.98;
}

.hero-subtitle {
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
  color: rgba(8, 9, 11, 0.62);
  text-shadow: none;
}

.hero-actions {
  justify-content: center;
}

.btn-primary {
  background: #08090b;
  color: #ffffff;
}

.btn-primary:hover {
  background: #24262b;
  color: #ffffff;
}

.btn-outline,
.section-white .btn-outline,
.section-light .btn-outline,
.cta-section .btn-outline {
  background: rgba(255, 255, 255, 0.72);
  border-color: rgba(8, 9, 11, 0.16);
  color: #08090b;
}

.hero-trust {
  position: relative;
  z-index: 2;
  transform: none;
  background: rgba(255, 255, 255, 0.74);
  border-color: rgba(8, 9, 11, 0.1);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.trust-card {
  background: rgba(255, 255, 255, 0.64);
  color: #08090b;
}

.trust-card .trust-icon {
  background: rgba(11, 92, 255, 0.08);
  border-color: rgba(11, 92, 255, 0.12);
  color: var(--brand-blue);
}

.trust-card .trust-title {
  color: #08090b;
}

.trust-card .trust-desc {
  color: rgba(8, 9, 11, 0.56);
}

.platform-brief {
  background: #ffffff;
  color: #08090b;
  padding: 112px 0 96px;
}

.platform-brief::before {
  background-image:
    linear-gradient(rgba(8, 9, 11, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(8, 9, 11, 0.05) 1px, transparent 1px);
  opacity: 0.75;
  animation: qbk-grid-drift 22s linear infinite reverse;
}

.platform-label {
  color: rgba(8, 9, 11, 0.48);
}

.platform-copy h2 {
  color: #08090b;
}

.platform-copy p {
  color: rgba(8, 9, 11, 0.62);
}

.platform-console {
  position: relative;
  overflow: hidden;
  border-color: rgba(8, 9, 11, 0.12);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 28px 90px rgba(8, 9, 11, 0.08);
}

.platform-console::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(11, 92, 255, 0.08), transparent);
  transform: translateX(-100%);
  animation: qbk-console-sweep 6s ease-in-out infinite;
  pointer-events: none;
}

.console-top,
.console-row {
  border-bottom-color: rgba(8, 9, 11, 0.09);
}

.console-top {
  color: rgba(8, 9, 11, 0.48);
}

.console-top strong,
.console-row strong {
  color: #08090b;
}

.console-row span {
  color: rgba(11, 92, 255, 0.72);
}

.console-row em {
  color: rgba(8, 9, 11, 0.56);
}

.section-white,
.section-light,
#services,
#support,
#cases,
#solutions,
#products,
#credentials,
.section-white[style] {
  background: #ffffff;
  color: #08090b;
}

.section-white[style] .stats-row {
  margin-top: 0;
  background: #ffffff;
  border-color: rgba(8, 9, 11, 0.1);
  box-shadow: 0 22px 68px rgba(8, 9, 11, 0.06);
}

.section-white[style] .stat-item {
  border-right-color: rgba(8, 9, 11, 0.1);
}

.section-white[style] .stat-value,
.section-white[style] .stat-label,
#solutions h2,
#products h2,
#credentials h2 {
  color: #08090b;
  -webkit-text-fill-color: #08090b;
}

.section-white[style] .stat-desc,
#solutions .section-desc,
#products .section-desc,
#credentials .section-desc,
#credentials .brand-intro {
  color: rgba(8, 9, 11, 0.58);
}

.solutions-grid,
.arch-diagram,
.brand-wall {
  border-color: rgba(8, 9, 11, 0.1);
  background: rgba(8, 9, 11, 0.1);
}

.arch-layer,
.brand-card {
  background: #ffffff !important;
  color: rgba(8, 9, 11, 0.7) !important;
}

.brand-card:hover {
  background: #f7f8fb !important;
}

.brand-name {
  color: rgba(8, 9, 11, 0.52);
}

.brand-proof span {
  background: #ffffff;
  border-color: rgba(8, 9, 11, 0.1);
  color: rgba(8, 9, 11, 0.62);
}

#solutions .section-header::after,
#products .section-header::after,
#credentials .section-header::after {
  background: var(--brand-blue);
}

.cta-section {
  background:
    linear-gradient(90deg, rgba(8, 9, 11, 0.88) 0%, rgba(8, 9, 11, 0.76) 52%, rgba(8, 9, 11, 0.46) 100%),
    url("product-bg/contact-business-meeting.jpg?v=contact-20260529") center/cover no-repeat;
}

@keyframes qbk-grid-drift {
  from {
    background-position: 0 0, 0 0;
  }
  to {
    background-position: 76px 76px, 76px 76px;
  }
}

@keyframes qbk-rail-scan {
  0% {
    transform: translateX(-65%) scaleX(0.72);
    opacity: 0;
  }
  18%,
  78% {
    opacity: 0.62;
  }
  100% {
    transform: translateX(-35%) scaleX(1);
    opacity: 0;
  }
}

@keyframes qbk-panel-scan {
  0%,
  100% {
    opacity: 0.42;
  }
  50% {
    opacity: 0.78;
  }
}

@keyframes qbk-console-sweep {
  0%,
  22% {
    transform: translateX(-100%);
  }
  58%,
  100% {
    transform: translateX(100%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero::before,
  .hero-motion span,
  .hero-motion::after,
  .platform-brief::before,
  .platform-console::before {
    animation: none;
  }
}

@media (max-width: 1180px) {
  .hero-statement {
    font-size: 4.6rem;
  }
}

@media (max-width: 768px) {
  .nav {
    background: rgba(255, 255, 255, 0.92);
  }

  .nav-logo,
  .nav-links a,
  .nav-search-btn {
    color: rgba(8, 9, 11, 0.82);
  }

  .nav-links.open {
    background: rgba(255, 255, 255, 0.98);
    border-bottom-color: rgba(8, 9, 11, 0.1);
  }

  .hero {
    min-height: 94vh;
    padding-top: 108px;
    background: #ffffff;
  }

  .hero-motion {
    inset: 70px 0 auto;
    height: 430px;
  }

  .hero-statement {
    font-size: 3.12rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-badge {
    background: rgba(255, 255, 255, 0.84);
    color: rgba(8, 9, 11, 0.66);
  }

  .section-white[style] .stat-item {
    border-bottom-color: rgba(8, 9, 11, 0.1);
  }
}

@media (max-width: 480px) {
  .hero-statement {
    font-size: 2.58rem;
  }

  .hero-motion::before {
    top: 74px;
  }
}

/* Final hero: media constellation inspired by TwelveLabs, adapted for QBK. */
.nav {
  background: rgba(7, 9, 12, 0.74);
  border-bottom-color: rgba(255, 255, 255, 0.1);
  color: #ffffff;
}

.nav-logo,
.nav-links a,
.nav-search-btn {
  color: rgba(255, 255, 255, 0.88);
}

.nav-links a:hover,
.nav-search-btn:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}

.hamburger span {
  background: #ffffff;
}

.hero {
  min-height: 100vh;
  padding: 118px 32px 56px;
  color: #ffffff;
  text-align: left;
  align-items: stretch;
  justify-content: flex-end;
  background:
    linear-gradient(90deg, rgba(4, 8, 7, 0.96) 0%, rgba(7, 10, 13, 0.88) 42%, rgba(12, 14, 18, 0.76) 100%),
    #07090c;
}

.hero::before {
  inset: 0;
  background:
    radial-gradient(circle at 16% 44%, rgba(37, 120, 74, 0.18), transparent 30%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px);
  background-size: auto, 86px 86px, 86px 86px;
  mask-image: none;
  animation: qbk-hero-grid 24s linear infinite;
}

.hero::after {
  height: 22vh;
  background: linear-gradient(180deg, rgba(7, 9, 12, 0), #ffffff);
}

.hero-motion {
  position: absolute;
  inset: 0;
  height: auto;
  overflow: hidden;
  pointer-events: none;
  perspective: 1200px;
}

.hero-motion::before,
.hero-motion::after {
  display: none;
}

.motion-tile {
  position: absolute;
  display: block;
  width: var(--w, 108px);
  height: var(--h, 58px);
  left: var(--x);
  top: var(--y);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0)),
    var(--img) center/cover no-repeat;
  box-shadow: 0 22px 70px rgba(0, 0, 0, 0.28);
  opacity: var(--o, 0.72);
  filter: blur(var(--b, 0)) saturate(1.05);
  transform: translate3d(0, 0, var(--z, 0)) scale(var(--s, 1));
  animation: qbk-float-tile var(--d, 12s) ease-in-out infinite;
  animation-delay: var(--delay, 0s);
}

.motion-tile::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.18), transparent);
  opacity: 0;
  animation: qbk-tile-glint 7s ease-in-out infinite;
  animation-delay: var(--delay, 0s);
}

.tile-chip {
  background:
    linear-gradient(135deg, rgba(77, 30, 255, 0.96), rgba(21, 76, 255, 0.56)),
    #19203a;
}

.tile-chip::before {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  top: 50%;
  height: 8px;
  transform: translateY(-50%);
  border-radius: 999px;
  background:
    radial-gradient(circle, rgba(255, 255, 255, 0.72) 0 2px, transparent 3px) 0 0/18px 8px,
    linear-gradient(90deg, rgba(255, 255, 255, 0.28), rgba(255, 255, 255, 0.08));
}

.tile-1 { --x: 9%; --y: 17%; --w: 118px; --h: 64px; --img: url("product-bg/case-park.jpg"); --s: .72; --o: .2; --b: 2px; --d: 16s; }
.tile-2 { --x: 24%; --y: 11%; --w: 104px; --h: 58px; --img: url("product-bg/case-campus.jpg"); --s: .86; --o: .28; --b: 1.5px; --delay: -1s; }
.tile-3 { --x: 45%; --y: 13%; --w: 122px; --h: 68px; --img: url("product-bg/case-school.jpg"); --s: .78; --o: .34; --b: 1px; --delay: -2s; }
.tile-4 { --x: 77%; --y: 8%; --w: 142px; --h: 78px; --img: url("product-bg/hero-smart-park.jpg"); --s: 1.02; --o: .92; --delay: -3s; }
.tile-5 { --x: 67%; --y: 25%; --w: 92px; --h: 50px; --img: url("product-bg/case-solar.jpg"); --s: .92; --o: .78; --delay: -4s; }
.tile-6 { --x: 87%; --y: 37%; --w: 116px; --h: 64px; --img: url("product-bg/case-logistics.jpg"); --s: .98; --o: .82; --delay: -2.4s; }
.tile-7 { --x: 48%; --y: 38%; --w: 78px; --h: 42px; --img: url("product-bg/case-highway.jpg"); --s: .82; --o: .64; --delay: -5s; }
.tile-8 { --x: 58%; --y: 41%; --w: 88px; --h: 48px; --img: url("product-bg/case-government.jpg"); --s: .88; --o: .68; --delay: -1.7s; }
.tile-9 { --x: 72%; --y: 51%; --w: 132px; --h: 72px; --img: url("product-bg/case-mall.jpg"); --s: 1; --o: .96; --delay: -3.7s; }
.tile-10 { --x: 84%; --y: 64%; --w: 138px; --h: 76px; --img: url("product-bg/sol-commerce.jpg"); --s: .92; --o: .72; --delay: -6s; }
.tile-11 { --x: 62%; --y: 72%; --w: 100px; --h: 54px; --img: url("product-bg/case-classroom.jpg"); --s: .82; --o: .56; --b: .8px; --delay: -2.8s; }
.tile-12 { --x: 35%; --y: 78%; --w: 112px; --h: 60px; --img: url("product-bg/svc-integration.jpg"); --s: .78; --o: .38; --b: 1.2px; --delay: -4.8s; }
.tile-13 { --x: 20%; --y: 69%; --w: 90px; --h: 50px; --img: url("product-bg/svc-security.jpg"); --s: .68; --o: .24; --b: 1.8px; --delay: -7s; }
.tile-14 { --x: 7%; --y: 58%; --w: 112px; --h: 60px; --img: url("product-bg/sol-gov.jpg"); --s: .62; --o: .18; --b: 2.5px; --delay: -1.2s; }
.tile-15 { --x: 95%; --y: 24%; --w: 108px; --h: 58px; --img: url("product-bg/case-design.jpg"); --s: .88; --o: .58; --delay: -5.8s; }
.tile-16 { --x: 54%; --y: 27%; --w: 82px; --h: 44px; --img: url("product-bg/case-garden.jpg"); --s: .7; --o: .44; --delay: -3.1s; }
.tile-17 { --x: 63%; --y: 31%; --w: 68px; --h: 38px; --o: .5; --s: .8; --delay: -2s; }
.tile-18 { --x: 76%; --y: 43%; --w: 74px; --h: 42px; --o: .9; --s: .96; --delay: -4.3s; }
.tile-19 { --x: 42%; --y: 51%; --w: 62px; --h: 34px; --o: .32; --s: .72; --delay: -5.2s; }
.tile-20 { --x: 93%; --y: 55%; --w: 92px; --h: 52px; --o: .68; --s: 1; --delay: -1.9s; }

.motion-callout {
  position: absolute;
  right: 28px;
  bottom: 64px;
  width: min(320px, calc(100vw - 56px));
  min-height: 84px;
  padding: 20px 22px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  box-shadow: 0 24px 90px rgba(0, 0, 0, 0.34);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  animation: qbk-float-callout 9s ease-in-out infinite;
}

.motion-callout strong,
.motion-callout span {
  display: block;
}

.motion-callout strong {
  margin-bottom: 6px;
  font-size: 0.95rem;
}

.motion-callout span {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.84rem;
  line-height: 1.5;
}

.hero-content {
  width: min(100%, 1200px);
  max-width: 1200px;
  margin: 0 auto 44px;
  text-align: left;
}

.hero-badge {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.78);
}

.hero-eyebrow,
.hero h1 {
  color: rgba(255, 255, 255, 0.62);
}

.hero-statement {
  max-width: 760px;
  margin-left: 0;
  color: #fff;
  font-size: 4.6rem;
  line-height: 1.04;
}

.hero-subtitle {
  max-width: 650px;
  margin-left: 0;
  color: rgba(255, 255, 255, 0.78);
}

.hero-actions {
  justify-content: flex-start;
}

.hero .btn-primary {
  background: #ffffff;
  color: #111214;
}

.hero .btn-outline {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.34);
  color: #ffffff;
}

.hero-trust {
  width: min(100%, 1200px);
  max-width: 1200px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.13);
}

.trust-card {
  background: rgba(255, 255, 255, 0.04);
  color: #fff;
}

.trust-card .trust-icon {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.18);
  color: #ffffff;
}

.trust-card .trust-title {
  color: #ffffff;
}

.trust-card .trust-desc {
  color: rgba(255, 255, 255, 0.66);
}

@keyframes qbk-hero-grid {
  from { background-position: center, 0 0, 0 0; }
  to { background-position: center, 86px 86px, 86px 86px; }
}

@keyframes qbk-float-tile {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -18px; }
}

@keyframes qbk-tile-glint {
  0%, 72%, 100% { opacity: 0; transform: translateX(-80%); }
  84% { opacity: 1; }
  96% { opacity: 0; transform: translateX(80%); }
}

@keyframes qbk-float-callout {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -10px; }
}

@media (max-width: 900px) {
  .nav {
    background: rgba(7, 9, 12, 0.86);
  }

  .nav-links.open {
    background: rgba(7, 9, 12, 0.96);
    border-bottom-color: rgba(255, 255, 255, 0.1);
  }

  .nav-links a {
    color: rgba(255, 255, 255, 0.88);
  }

  .hero {
    min-height: 100vh;
    padding: 96px 20px 44px;
  }

  .hero-statement {
    font-size: 3.1rem;
  }

  .motion-tile {
    opacity: calc(var(--o, 0.7) * 0.72);
  }

  .tile-1,
  .tile-2,
  .tile-3,
  .tile-12,
  .tile-13,
  .tile-14,
  .tile-16,
  .tile-19 {
    display: none;
  }

  .tile-4 { --x: 68%; --y: 10%; }
  .tile-5 { --x: 42%; --y: 21%; }
  .tile-6 { --x: 76%; --y: 31%; }
  .tile-7 { --x: 62%; --y: 44%; }
  .tile-8 { --x: 84%; --y: 49%; }
  .tile-9 { --x: 56%; --y: 62%; }
  .tile-10 { --x: 76%; --y: 72%; }
  .tile-11 { --x: 38%; --y: 76%; }
  .tile-15 { --x: 92%; --y: 22%; }
  .tile-17 { --x: 50%; --y: 34%; }
  .tile-18 { --x: 74%; --y: 42%; }
  .tile-20 { --x: 88%; --y: 58%; }

  .motion-callout {
    display: none;
  }
}

@media (max-width: 520px) {
  .hero-statement {
    font-size: 2.58rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-trust {
    display: none;
  }

  .motion-tile {
    --s: .72;
  }
}

@media (prefers-reduced-motion: reduce) {
  .motion-tile,
  .motion-tile::after,
  .motion-callout,
  .hero::before {
    animation: none !important;
  }
}

/* Rebuild hero motion as drifting media lanes, closer to TwelveLabs. */
.hero-motion {
  inset: 0;
  height: auto;
  overflow: hidden;
  perspective: 1400px;
}

.media-lane {
  position: absolute;
  left: 32%;
  display: flex;
  gap: 24px;
  width: max-content;
  transform-style: preserve-3d;
  will-change: transform;
}

.media-card {
  position: relative;
  display: block;
  flex: 0 0 auto;
  width: 112px;
  height: 62px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0)),
    var(--img) center/cover no-repeat;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
  opacity: var(--card-opacity, 0.86);
  filter: blur(var(--card-blur, 0)) saturate(1.08);
  transform: translateZ(var(--card-z, 0)) scale(var(--card-scale, 1));
}

.media-card.wide {
  width: 148px;
  height: 78px;
}

.media-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 30%, rgba(255, 255, 255, 0.22), transparent 68%);
  opacity: 0;
  transform: translateX(-100%);
  animation: qbk-card-shimmer 9s ease-in-out infinite;
}

.mc-chip {
  --img: none;
  background:
    radial-gradient(circle at 28% 50%, rgba(255, 255, 255, 0.52) 0 4px, transparent 5px),
    radial-gradient(circle at 46% 50%, rgba(255, 255, 255, 0.34) 0 3px, transparent 4px),
    radial-gradient(circle at 62% 50%, rgba(255, 255, 255, 0.24) 0 3px, transparent 4px),
    linear-gradient(135deg, #6227ff, #2345ff 62%, #152447);
}

.mc-chip.calm {
  background:
    radial-gradient(circle at 32% 50%, rgba(255, 255, 255, 0.44) 0 4px, transparent 5px),
    radial-gradient(circle at 54% 50%, rgba(255, 255, 255, 0.22) 0 3px, transparent 4px),
    linear-gradient(135deg, #111a2f, #173860 64%, #08111f);
}

.mc-chip.signal {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), transparent 52%),
    linear-gradient(135deg, #fff06a, #f481ff 52%, #5339ff);
}

.mc-park { --img: url("product-bg/case-park.jpg"); }
.mc-campus { --img: url("product-bg/case-campus.jpg"); }
.mc-security { --img: url("product-bg/svc-security.jpg"); }
.mc-solar { --img: url("product-bg/case-solar.jpg"); }
.mc-edu { --img: url("product-bg/sol-education.jpg"); }
.mc-commerce { --img: url("product-bg/sol-commerce.jpg"); }
.mc-gov { --img: url("product-bg/sol-gov.jpg"); }
.mc-highway { --img: url("product-bg/case-highway.jpg"); }
.mc-logistics { --img: url("product-bg/case-logistics.jpg"); }
.mc-design { --img: url("product-bg/case-design.jpg"); }
.mc-school { --img: url("product-bg/case-school.jpg"); }
.mc-hero { --img: url("product-bg/hero-smart-park.jpg"); }
.mc-mall { --img: url("product-bg/case-mall.jpg"); }
.mc-garden { --img: url("product-bg/case-garden.jpg"); }
.mc-government { --img: url("product-bg/case-government.jpg"); }
.mc-classroom { --img: url("product-bg/case-classroom.jpg"); }
.mc-charging { --img: url("product-bg/8-charging.jpg"); }

.lane-a {
  top: 12%;
  --card-opacity: 0.28;
  --card-blur: 2.4px;
  --card-scale: 0.72;
  transform: translate3d(-4vw, 0, -360px) rotateZ(-8deg);
  animation: qbk-lane-a 26s linear infinite;
}

.lane-b {
  top: 28%;
  --card-opacity: 0.5;
  --card-blur: 1.3px;
  --card-scale: 0.86;
  transform: translate3d(-10vw, 0, -210px) rotateZ(-8deg);
  animation: qbk-lane-b 30s linear infinite;
}

.lane-c {
  top: 45%;
  --card-opacity: 0.92;
  --card-blur: 0;
  --card-scale: 1;
  transform: translate3d(-2vw, 0, 0) rotateZ(-8deg);
  animation: qbk-lane-c 32s linear infinite;
}

.lane-d {
  top: 62%;
  --card-opacity: 0.6;
  --card-blur: .8px;
  --card-scale: 0.84;
  transform: translate3d(-12vw, 0, -160px) rotateZ(-8deg);
  animation: qbk-lane-d 29s linear infinite;
}

.lane-e {
  top: 80%;
  --card-opacity: 0.32;
  --card-blur: 2px;
  --card-scale: 0.72;
  transform: translate3d(-2vw, 0, -320px) rotateZ(-8deg);
  animation: qbk-lane-e 34s linear infinite;
}

@keyframes qbk-lane-a {
  from { transform: translate3d(-4vw, 0, -360px) rotateZ(-8deg); }
  to { transform: translate3d(-20vw, -18px, -360px) rotateZ(-8deg); }
}

@keyframes qbk-lane-b {
  from { transform: translate3d(-20vw, 0, -210px) rotateZ(-8deg); }
  to { transform: translate3d(-2vw, 18px, -210px) rotateZ(-8deg); }
}

@keyframes qbk-lane-c {
  from { transform: translate3d(-2vw, 0, 0) rotateZ(-8deg); }
  to { transform: translate3d(-18vw, -16px, 0) rotateZ(-8deg); }
}

@keyframes qbk-lane-d {
  from { transform: translate3d(-18vw, 0, -160px) rotateZ(-8deg); }
  to { transform: translate3d(-4vw, 14px, -160px) rotateZ(-8deg); }
}

@keyframes qbk-lane-e {
  from { transform: translate3d(-2vw, 0, -320px) rotateZ(-8deg); }
  to { transform: translate3d(-22vw, -20px, -320px) rotateZ(-8deg); }
}

@keyframes qbk-card-shimmer {
  0%, 76%, 100% {
    opacity: 0;
    transform: translateX(-100%);
  }
  84% {
    opacity: .72;
  }
  94% {
    opacity: 0;
    transform: translateX(100%);
  }
}

@media (max-width: 900px) {
  .media-lane {
    left: 42%;
    gap: 16px;
  }

  .media-card {
    width: 86px;
    height: 48px;
  }

  .media-card.wide {
    width: 112px;
    height: 60px;
  }

  .lane-a,
  .lane-e {
    display: none;
  }
}

@media (max-width: 520px) {
  .media-lane {
    left: 48%;
    gap: 14px;
  }

  .media-card {
    width: 74px;
    height: 42px;
  }

  .media-card.wide {
    width: 98px;
    height: 54px;
  }

  .lane-b {
    top: 18%;
  }

  .lane-c {
    top: 36%;
  }

  .lane-d {
    top: 56%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .media-lane,
  .media-card::after {
    animation: none !important;
  }
}

/* Final alignment pass: colored mark, centered layout, tidy rhythm. */
.nav-logo polygon:nth-of-type(1) {
  fill: url("#nb1");
  opacity: 1;
}

.nav-logo polygon:nth-of-type(2) {
  fill: url("#nb2");
  opacity: 1;
}

.nav-logo polygon:nth-of-type(3) {
  fill: url("#nb3");
  opacity: 1;
}

.nav-logo svg text {
  fill: currentColor;
}

.hero-content {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.hero-statement,
.hero-subtitle {
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  justify-content: center;
}

.hero-trust {
  margin-left: auto;
  margin-right: auto;
}

.section-inner,
.platform-inner,
.cta-inner,
.footer-inner {
  margin-left: auto;
  margin-right: auto;
}

.section-header {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-header::after {
  margin-left: auto;
  margin-right: auto;
}

.section-desc,
.brand-intro,
.cta-inner p {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.platform-inner {
  justify-items: center;
}

.platform-copy {
  max-width: 780px;
  text-align: center;
}

.platform-copy p {
  margin-left: auto;
  margin-right: auto;
}

.platform-console {
  width: min(100%, 720px);
}

.stats-row,
.solutions-grid,
.services-grid,
.support-layout,
.products-grid,
.cases-grid,
.brand-wall,
.quals-grid,
.delivery-flow {
  margin-left: auto;
  margin-right: auto;
}

.brand-proof,
.cta-actions,
.form-submit {
  justify-content: center;
}

.contact-form {
  margin-left: auto;
  margin-right: auto;
}

.footer-top {
  text-align: center;
}

.footer-bottom {
  justify-content: center;
}

@media (max-width: 768px) {
  .hero-content,
  .section-header,
  .platform-copy,
  .footer-top {
    text-align: center;
  }

  .hero-actions,
  .cta-actions {
    justify-content: center;
  }
}

/* Final requested fixes: centered hero brand and uniform case cards. */
.hero-content,
.hero-content .hero-eyebrow,
.hero-content h1,
.hero-content .hero-statement,
.hero-content .hero-subtitle {
  text-align: center !important;
}

.hero-content h1 {
  display: block;
  width: 100%;
  max-width: none;
  margin-left: auto;
  margin-right: auto;
}

.cases-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
  gap: 18px !important;
  align-items: stretch;
}

.case-card,
.case-card:first-child,
.case-card:nth-child(15) {
  grid-column: auto !important;
  min-height: 300px !important;
  height: 300px !important;
}

.case-card {
  justify-content: flex-end;
}

@media (max-width: 1024px) {
  .cases-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  }
}

@media (max-width: 640px) {
  .cases-grid {
    grid-template-columns: 1fr !important;
  }

  .case-card,
  .case-card:first-child,
  .case-card:nth-child(15) {
    min-height: 280px !important;
    height: 280px !important;
  }
}

/* Final contact alignment: centered CTA with tidy form layout. */
#contact,
#contact .cta-inner {
  text-align: center !important;
}

#contact .cta-inner {
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}

#contact .cta-inner h2,
#contact .cta-inner > p,
#contact .cta-phone,
#contact .cta-hours {
  margin-left: auto;
  margin-right: auto;
  text-align: center !important;
}

#contact .cta-actions {
  justify-content: center !important;
}

#contact .contact-form {
  max-width: 760px;
  margin-left: auto !important;
  margin-right: auto !important;
  text-align: left;
}

#contact .form-submit {
  justify-content: center !important;
}

#contact .form-note,
#contact .form-alert {
  text-align: center;
}

@media (max-width: 640px) {
  #contact .cta-actions .btn,
  #contact .form-submit .btn {
    width: 100%;
  }
}

/* Final support card treatment: project-photo background with readable overlays. */
.support-panel {
  position: relative;
  display: flex;
  min-height: 520px;
  overflow: hidden;
  flex-direction: column;
  justify-content: space-between;
  isolation: isolate;
  border-color: rgba(8, 9, 11, 0.16);
  background:
    radial-gradient(circle at 18% 16%, rgba(39, 120, 255, 0.32), transparent 34%),
    linear-gradient(180deg, rgba(5, 7, 10, 0.84) 0%, rgba(5, 7, 10, 0.68) 42%, rgba(5, 7, 10, 0.94) 100%),
    url("product-bg/case-government.jpg?v=support-bg-20260603") center/cover no-repeat;
}

.support-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 52px 52px;
  opacity: 0.42;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.8), transparent 74%);
  pointer-events: none;
}

.support-panel::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  z-index: -1;
  height: 48%;
  background: linear-gradient(180deg, transparent, rgba(5, 7, 10, 0.9));
  pointer-events: none;
}

.support-panel > * {
  position: relative;
}

.support-panel h3,
.support-panel p {
  max-width: 680px;
}

.support-panel h3 {
  color: #fff;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.28);
}

.support-panel p {
  color: rgba(255, 255, 255, 0.78);
}

.support-metrics {
  margin-top: 96px;
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.support-metric {
  background: rgba(255, 255, 255, 0.08);
}

.support-metric strong {
  color: #fff;
}

.support-metric span {
  color: rgba(255, 255, 255, 0.72);
}

.platform-label {
  letter-spacing: 0;
  text-transform: none;
}

.console-top {
  font-size: 0.92rem;
}

@media (max-width: 1024px) {
  .support-panel {
    min-height: 460px;
  }
}

@media (max-width: 640px) {
  .support-panel {
    min-height: 430px;
    padding: 28px 22px;
    background-position: 58% center;
  }

  .support-metrics {
    margin-top: 56px;
  }
}