:root {
  --bg: #05070c;
  --bg-soft: #0b1220;
  --panel: rgba(255, 255, 255, 0.06);
  --panel-strong: rgba(255, 255, 255, 0.12);
  --border: rgba(255, 255, 255, 0.12);
  --text: #f4f7fb;
  --text-muted: rgba(244, 247, 251, 0.76);
  --text-soft: rgba(244, 247, 251, 0.52);
  --accent: #8ec5ff;
  --accent-strong: #ffffff;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.36);
  --radius-xl: 36px;
  --radius-lg: 28px;
  --radius-md: 22px;
  --max: 1240px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: rgba(123, 135, 151, 0.42) transparent;
}

html::-webkit-scrollbar {
  width: 4px;
}

html::-webkit-scrollbar-track {
  background: transparent;
}

html::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(123, 135, 151, 0.42);
}

html::-webkit-scrollbar-thumb:hover {
  background: rgba(123, 135, 151, 0.58);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 30;
  padding: 0;
  contain: paint;
  transition:
    background-color 0.24s ease,
    border-color 0.24s ease,
    backdrop-filter 0.24s ease,
    box-shadow 0.24s ease;
}

.header-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 24px;
  width: 100%;
  margin: 0 auto;
  padding: 6px 54px;
  border: 1px solid transparent;
  border-radius: 0;
  border-left: 0;
  border-right: 0;
  border-top: 0;
  background: transparent;
  backdrop-filter: none;
  transition:
    padding 0.24s ease,
    gap 0.24s ease;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
  justify-self: start;
  grid-column: 1;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  overflow: hidden;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 24px rgba(142, 197, 255, 0.24);
}

.brand-mark img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand-copy {
  display: grid;
  gap: 2px;
  text-align: left;
}

.brand-copy strong {
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
  font-size: 19px;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: #111111;
}

.brand-copy em,
.eyebrow {
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
  color: rgba(17, 17, 17, 0.88);
  font-style: normal;
  font-size: 13px;
  font-weight: 300;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.brand-copy em {
  display: block;
  font-size: 11px;
  line-height: 1.2;
  letter-spacing: 0.28em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-main {
  grid-column: 2;
  justify-content: center;
  justify-self: center;
  min-width: 0;
  flex-wrap: nowrap;
}

.nav-toggle,
.mobile-nav {
  display: none;
}

.nav-cta {
  grid-column: 3;
  justify-self: end;
}

.nav-toggle {
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
}

.nav-toggle span {
  width: 16px;
  height: 1px;
  background: currentColor;
  transition: transform 0.24s ease, opacity 0.24s ease;
}

.nav-toggle.is-open span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.nav-toggle.is-open span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

.mobile-nav {
  width: 100%;
  margin: 0;
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 0;
  border-left: 0;
  border-right: 0;
  border-top: 0;
  background: rgba(4, 8, 15, 0.82);
  backdrop-filter: blur(18px);
}

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

.mobile-nav a {
  padding: 12px 14px;
  border-radius: 16px;
  color: var(--text-muted);
  font-size: 14px;
}

.mobile-nav a:hover,
.mobile-nav a.is-active {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.site-nav a {
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 100px;
  padding: 0 10px;
  color: rgba(17, 17, 17, 0.92);
  font-size: 19px;
  font-weight: 400;
  letter-spacing: 0.01em;
  transition: color 0.24s ease;
}

.site-nav a::after {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.82), rgba(255, 255, 255, 0.1));
  transform: scaleX(0);
  transition: transform 0.28s ease;
  content: "";
}

.site-nav a:hover,
.site-nav a.is-active {
  color: #111111;
}

.site-nav a:hover::after,
.site-nav a.is-active::after {
  transform: scaleX(1);
}

.button,
.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 100;
  transition: transform 0.24s ease, background-color 0.24s ease, border-color 0.24s ease;
}

.button:hover,
.nav-cta:hover {
  transform: translateY(-2px);
}

.button-primary,
.nav-cta {
  background: #ffffff;
  color: #04070d;
}

.nav-cta {
  border: 1px solid rgba(255, 255, 255, 0.18);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.06)),
    rgba(22, 28, 36, 0.28);
  color: #eef3f9;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    0 10px 24px rgba(7, 11, 18, 0.16);
}

.site-header.is-scrolled {
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(4, 8, 15, 0.44);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 10px 24px rgba(7, 11, 18, 0.12);
}

.site-header.is-scrolled .header-inner {
  border-color: transparent;
  background: transparent;
  backdrop-filter: none;
}

.site-header.is-scrolled .brand-copy strong {
  color: var(--text);
  font-size: 19px;
  font-weight: 400;
  letter-spacing: 0.08em;
}

.site-header.is-scrolled .brand-copy em,
.site-header.is-scrolled .eyebrow {
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 300;
  letter-spacing: 0.2em;
}

.site-header.is-scrolled .site-nav a {
  color: var(--text-soft);
  font-size: 17px;
  font-weight: 400;
  letter-spacing: 0.01em;
}

.site-header.is-scrolled .site-nav a::after {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.1), #ffffff, rgba(255, 255, 255, 0.1));
}

.site-header.is-scrolled .site-nav a:hover,
.site-header.is-scrolled .site-nav a.is-active {
  color: var(--text);
}

.site-header.is-scrolled .nav-toggle {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.site-header.is-scrolled .nav-cta {
  border-color: rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.08)),
    linear-gradient(135deg, #f7fbff 0%, #d7e8ff 100%);
  color: #07111d;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.72),
    0 10px 22px rgba(0, 0, 0, 0.18),
    0 0 0 1px rgba(255, 255, 255, 0.08);
}

.site-header.is-scrolled .nav-cta:hover {
  border-color: rgba(255, 255, 255, 0.14);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.24), rgba(255, 255, 255, 0.1)),
    linear-gradient(135deg, #ffffff 0%, #e4f0ff 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.82),
    0 14px 28px rgba(0, 0, 0, 0.22),
    0 0 0 1px rgba(255, 255, 255, 0.1);
}

.button-secondary {
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

main {
  overflow: hidden;
}

.section-anchor {
  position: relative;
}

.section-shell {
  position: relative;
  z-index: 2;
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: 0 20px;
}

.section-image,
.hero,
.contact {
  min-height: 100vh;
}

.hero {
  display: grid;
  align-items: end;
  padding: 140px 0 48px;
}

.hero-media,
.section-backdrop {
  position: absolute;
  inset: 0;
}

.hero-media img,
.section-backdrop img {
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(4, 7, 13, 0.03) 0%, rgba(4, 7, 13, 0.08) 42%, rgba(4, 7, 13, 0.18) 100%),
    radial-gradient(circle at 72% 18%, rgba(142, 197, 255, 0.1), transparent 24%);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  margin: 0 auto;
  padding: 0 28px 40px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 56px;
  align-items: end;
  text-align: left;
}

.hero h1,
.section-heading h2,
.section-copy h2,
.contact-copy h2 {
  margin: 0;
  font-weight: 300;
  line-height: 1.04;
  letter-spacing: -0.05em;
  text-wrap: balance;
}

.hero h1 {
  max-width: none;
  margin-top: 12px;
  font-size: clamp(24px, 3vw, 42px);
  white-space: nowrap;
  color: #ffffff;
}

.hero-lead,
.section-heading p,
.section-copy p,
.positioning-points p,
.business-card p,
.ai-step p,
.service-item p,
.scenario-card p,
.contact-copy p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.9;
  font-weight: 300;
}

.hero-summary {
  max-width: 620px;
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: 15px;
  line-height: 1.8;
  font-weight: 300;
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.hero-actions,
.hero-tags {
  justify-content: flex-end;
}

.hero-tags,
.contact-tags,
.outcome-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-tags {
  margin-top: 28px;
}

.hero-side {
  position: relative;
  display: grid;
  width: auto;
  justify-items: end;
  align-self: end;
  gap: 0;
  min-height: auto;
  padding-right: 8px;
  justify-self: end;
}

.hero-copy {
  display: grid;
  align-content: end;
  justify-self: start;
  max-width: 760px;
  padding: 24px 32px 28px 8px;
  border-radius: 28px;
  background:
    linear-gradient(135deg, rgba(93, 130, 194, 0.26) 0%, rgba(255, 255, 255, 0.12) 48%, rgba(255, 255, 255, 0) 100%),
    linear-gradient(90deg, rgba(8, 14, 24, 0.34) 0%, rgba(8, 14, 24, 0.16) 58%, rgba(8, 14, 24, 0) 100%);
}

.hero-tags span,
.contact-tags span,
.outcome-list span {
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 300;
}

.hero .hero-tags span {
  min-width: 286px;
  padding: 16px 22px;
  text-align: center;
  font-size: 16px;
  color: #111111;
  border-color: rgba(124, 130, 140, 0.18);
  background:
    linear-gradient(225deg, rgba(93, 130, 194, 0.26) 0%, rgba(255, 255, 255, 0.16) 52%, rgba(255, 255, 255, 0.08) 100%),
    linear-gradient(270deg, rgba(8, 14, 24, 0.12) 0%, rgba(8, 14, 24, 0.04) 100%);
  backdrop-filter: blur(10px);
}

.hero .eyebrow {
  color: rgba(255, 255, 255, 0.62);
  font-size: 11px;
  letter-spacing: 0.28em;
}


.section-dark,
.section-light {
  padding: 128px 0;
}

.section-dark {
  background: #070d17;
}

.section-light {
  background: linear-gradient(180deg, #f3f5f8 0%, #ffffff 100%);
  color: #111723;
}

.section-light .eyebrow,
.section-light .section-heading p,
.section-light .section-copy p,
.section-light .business-card p,
.section-light .service-item p,
.section-light .outcome-list span {
  color: rgba(17, 23, 35, 0.72);
}

.section-light .section-heading h2,
.section-light .section-copy h2,
.section-light .contact-copy h2,
.section-light .business-card h3,
.section-light .service-item h3,
.section-light .scenario-card h3,
.section-light .positioning-panel strong,
.section-light .subcase-menu strong {
  color: #111723;
}

.section-light .positioning-panel,
.section-light .scenario-card,
.section-light .outcome-shell {
  color: #111723;
}

.section-light .positioning-panel p,
.section-light .scenario-card p,
.section-light .subcase-menu a,
.section-light .action-link {
  color: rgba(17, 23, 35, 0.82);
}

.section-light .hero-tags span,
.section-light .contact-tags span,
.section-light .outcome-list span,
.section-light .business-card,
.section-light .service-item {
  border-color: rgba(17, 23, 35, 0.1);
}

.section-light .button-secondary {
  border-color: rgba(17, 23, 35, 0.14);
  background: rgba(17, 23, 35, 0.04);
  color: #111723;
}

.section-light .action-link {
  border-color: rgba(17, 23, 35, 0.12);
  background:
    linear-gradient(180deg, rgba(17, 23, 35, 0.04), rgba(17, 23, 35, 0.02)),
    rgba(17, 23, 35, 0.02);
  color: #111723;
}

.section-light .action-link:hover {
  border-color: rgba(17, 23, 35, 0.18);
  background:
    linear-gradient(180deg, rgba(142, 197, 255, 0.2), rgba(17, 23, 35, 0.03)),
    rgba(17, 23, 35, 0.03);
  box-shadow: 0 12px 24px rgba(17, 23, 35, 0.08);
}

.section-light .action-link::before {
  background: rgba(17, 23, 35, 0.06);
  color: rgba(17, 23, 35, 0.7);
}

.section-light .action-link::after {
  color: rgba(17, 23, 35, 0.28);
}

.section-light .action-link:hover::after {
  color: rgba(17, 23, 35, 0.7);
}

.section-light .action-link[data-demo*="seal"]::before,
.section-light .action-link[data-demo*="airport"]::before,
.section-light .action-link[data-demo*="enhance"]::before,
.section-light .action-link[data-demo*="platform"]::before,
.section-light .action-link[data-demo*="head"]::before,
.section-light .action-link[data-demo*="dashboard"]::before,
.section-light .action-link[data-demo*="flow"]::before,
.section-light .action-link[data-demo*="alert"]::before,
.section-light .action-link[data-demo*="shelf"]::before {
  background: rgba(17, 23, 35, 0.08);
  color: #111723;
}

.section-light .action-link[data-demo*="solution"]::before,
.section-light .action-link[data-demo="policy-ai"]::before,
.section-light .action-link[data-demo="policy-manufacturing"]::before {
  background: rgba(78, 147, 228, 0.14);
  color: #245f9f;
}

.section-light .action-link[data-demo*="results"]::before,
.section-light .action-link[data-demo*="manager"]::before {
  background: rgba(218, 87, 87, 0.14);
  color: #a43a3a;
}

.section-light .action-link[data-demo*="patent"]::before,
.section-light .action-link[data-demo*="library"]::before {
  background: rgba(87, 122, 218, 0.14);
  color: #36529f;
}

.section-light .action-link[data-demo*="directory"]::before {
  background: rgba(58, 146, 96, 0.14);
  color: #2e7a4f;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 500px);
  gap: 72px;
  align-items: end;
}

.positioning .two-column {
  grid-template-columns: minmax(0, 1.18fr) minmax(360px, 460px);
  gap: 88px;
}

.positioning .section-copy {
  position: relative;
  z-index: 2;
  padding-right: 0;
}

.positioning {
  overflow: hidden;
}

.positioning .section-backdrop {
  opacity: 0.16;
}

.section-copy h2,
.section-heading h2,
.contact-copy h2 {
  margin-top: 16px;
  max-width: 10ch;
  font-size: clamp(24px, 3vw, 42px);
  white-space: nowrap;
}

.section-copy p,
.section-heading p,
.contact-copy p {
  max-width: 760px;
  margin: 22px 0 0;
}

.positioning-points {
  display: grid;
  gap: 18px;
}

.positioning-slider {
  display: grid;
  gap: 18px;
  width: min(100%, 460px);
  margin-left: auto;
  justify-self: end;
  position: relative;
  z-index: 3;
}

.positioning-track {
  position: relative;
  min-height: 280px;
}

.positioning-panel {
  position: absolute;
  inset: 0;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--panel);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity 0.28s ease, transform 0.28s ease;
}

.positioning-panel.is-active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.positioning-panel strong {
  display: block;
  font-size: 19px;
  font-weight: 300;
  letter-spacing: -0.03em;
}

.positioning-panel p {
  margin: 10px 0 0;
}

.positioning-pager {
  display: flex;
  gap: 10px;
  justify-content: center;
}

.positioning-dot {
  width: 12px;
  height: 12px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.24);
  cursor: pointer;
}

.positioning-dot.is-active {
  width: 34px;
  background: #ffffff;
}

.positioning-points article,
.business-card,
.ai-step,
.service-item,
.scenario-card,
.outcome-shell {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--panel);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}

.positioning-points article {
  padding: 24px;
}

.positioning-points strong,
.business-card h3,
.ai-step h3,
.service-item h3,
.scenario-card h3 {
  display: block;
  font-size: 17px;
  font-weight: 300;
  letter-spacing: -0.03em;
}

.positioning-points p {
  margin: 10px 0 0;
}

.section-heading {
  max-width: 820px;
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 36px;
}

.business-card {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  min-height: 184px;
  padding: 18px;
}

.business-featured {
  position: relative;
  grid-column: span 2;
  display: grid;
  grid-template-columns: minmax(260px, 0.82fr) minmax(0, 1.18fr);
  gap: 28px;
  align-items: center;
  min-height: 0;
  overflow: hidden;
  padding: 26px;
}

.card-media {
  position: relative;
  aspect-ratio: 16 / 8;
  min-height: 164px;
  max-height: 220px;
  overflow: hidden;
}

.business-featured .card-media {
  width: 100%;
  height: auto;
  padding: 0;
  overflow: visible;
  background:
    radial-gradient(circle at 78% 24%, rgba(142, 197, 255, 0.16), transparent 28%),
    linear-gradient(180deg, rgba(7, 13, 23, 0.08), rgba(7, 13, 23, 0));
}

.business-mosaic {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  width: 100%;
  height: auto;
  align-items: stretch;
  grid-auto-rows: 1fr;
}

.business-mosaic__pane {
  position: relative;
  aspect-ratio: auto;
  min-height: 164px;
  height: 164px;
  margin: 0;
  border-radius: 22px;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(9, 16, 28, 0.16), rgba(9, 16, 28, 0.04));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.business-mosaic__pane img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.business-mosaic__pane--industrial img {
  object-position: center 32%;
}

.business-mosaic__pane--agri img {
  object-position: center 30%;
}

.business-mosaic__pane--drone img {
  object-position: center 52%;
}

.business-mosaic__pane::after {
  position: absolute;
  inset: auto 0 0;
  height: 44%;
  background: linear-gradient(180deg, rgba(6, 11, 19, 0), rgba(6, 11, 19, 0.78));
  content: "";
}

.business-mosaic__pane figcaption {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  z-index: 1;
  color: #f4f7fb;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-align: center;
}

.card-media img {
  width: 100%;
  height: 100%;
  min-height: 100%;
  object-fit: contain;
  object-position: center center;
  padding: 8px 10px 0;
  background:
    radial-gradient(circle at 50% 20%, rgba(142, 197, 255, 0.12), transparent 44%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
}

.business-featured .card-copy {
  min-height: 0;
  padding: 12px 4px 8px 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.card-copy {
  display: grid;
  align-content: center;
  justify-items: start;
  gap: 12px;
  padding: 32px 22px 32px 24px;
}

.business-featured .card-copy h3 {
  font-size: 19px;
  line-height: 1.3;
  margin: 0;
}

.business-featured .card-copy p {
  max-width: 48ch;
  font-size: 14px;
  line-height: 1.9;
}

.card-index,
.service-item span,
.ai-step span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.08em;
}

.section-light .card-index,
.section-light .service-item span {
  background: rgba(17, 23, 35, 0.06);
  color: #111723;
}

.business-card > .card-index,
.business-card > h3,
.business-card > p {
  position: relative;
  z-index: 1;
}

.business-card > h3 {
  margin: 12px 0 6px;
}

.business-card > p {
  flex: 1 1 auto;
}

.business-card > p,
.card-copy p,
.ai-step p,
.service-item p,
.scenario-card p {
  margin: 0;
}

.drone-inline-video {
  position: relative;
  appearance: none;
  width: min(100%, 220px);
  margin: 6px 0 14px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.04);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.14);
  cursor: pointer;
}

.drone-inline-video__poster {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #05070c;
  pointer-events: none;
}

.drone-inline-video__play {
  position: absolute;
  inset: 50% auto auto 50%;
  width: 62px;
  height: 62px;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  background: rgba(6, 11, 19, 0.62);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.22);
  pointer-events: none;
}

.drone-inline-video__play::before {
  position: absolute;
  inset: 50% auto auto 50%;
  width: 0;
  height: 0;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-left: 16px solid #ffffff;
  transform: translate(-35%, -50%);
  content: "";
}

.hero-side .drone-inline-video {
  width: min(100%, 286px);
  margin: 0;
  justify-self: end;
}

.hero-video-menu {
  position: absolute;
  top: 0;
  right: calc(100% - 8px);
  display: grid;
  gap: 10px;
  width: 248px;
  opacity: 0;
  transform: translateX(8px);
  pointer-events: none;
  transition: opacity 0.24s ease, transform 0.24s ease;
}

.hero-side:hover .hero-video-menu,
.hero-side:focus-within .hero-video-menu {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

.hero-video-option {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  min-height: 52px;
  padding: 0 18px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 16px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.05)),
    rgba(8, 14, 24, 0.34);
  color: #f4f7fb;
  font-family: inherit;
  font-size: 14px;
  font-weight: 300;
  line-height: 1.4;
  text-align: left;
  cursor: pointer;
  backdrop-filter: blur(12px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.18);
  transition: transform 0.24s ease, border-color 0.24s ease, background-color 0.24s ease;
}

.hero-video-option:hover,
.hero-video-option:focus-visible {
  transform: translateX(-4px);
  border-color: rgba(142, 197, 255, 0.36);
  background:
    linear-gradient(180deg, rgba(142, 197, 255, 0.18), rgba(255, 255, 255, 0.08)),
    rgba(8, 14, 24, 0.42);
  outline: none;
}

.action-group {
  display: grid;
  gap: 10px;
  margin-top: auto;
  padding-top: 14px;
}

.action-link {
  appearance: none;
  width: 100%;
  position: relative;
  display: grid;
  align-items: center;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  min-height: 58px;
  padding: 12px 16px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03)),
    rgba(255, 255, 255, 0.03);
  color: inherit;
  font-family: inherit;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.4;
  text-align: left;
  cursor: pointer;
  transition: transform 0.24s ease, background-color 0.24s ease, border-color 0.24s ease, box-shadow 0.24s ease;
}

.action-link:hover {
  transform: translateY(-2px);
  border-color: rgba(142, 197, 255, 0.34);
  background:
    linear-gradient(180deg, rgba(142, 197, 255, 0.12), rgba(255, 255, 255, 0.04)),
    rgba(255, 255, 255, 0.04);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.2);
}

.action-link::before {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 54px;
  height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(142, 197, 255, 0.12);
  color: var(--accent);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  content: "查看";
}

.action-link::after {
  color: rgba(244, 247, 251, 0.38);
  font-size: 16px;
  transition: transform 0.24s ease, color 0.24s ease;
  content: "\203A";
}

.action-link:hover::after {
  color: var(--accent-strong);
  transform: translateX(3px);
}

.action-link[data-demo*="seal"]::before,
.action-link[data-demo*="airport"]::before,
.action-link[data-demo*="enhance"]::before,
.action-link[data-demo*="platform"]::before,
.action-link[data-demo*="head"]::before,
.action-link[data-demo*="dashboard"]::before,
.action-link[data-demo*="flow"]::before,
.action-link[data-demo*="alert"]::before,
.action-link[data-demo*="shelf"]::before {
  background: rgba(255, 255, 255, 0.08);
  color: rgba(244, 247, 251, 0.84);
  content: "案例";
}

.action-link[data-demo*="solution"]::before,
.action-link[data-demo="policy-ai"]::before,
.action-link[data-demo="policy-manufacturing"]::before {
  background: rgba(98, 210, 255, 0.14);
  color: #90dcff;
  content: "演示";
}

.action-link[data-demo*="results"]::before,
.action-link[data-demo*="manager"]::before {
  background: rgba(255, 132, 132, 0.14);
  color: #ffb0b0;
  content: "数据";
}

.action-link[data-demo*="patent"]::before,
.action-link[data-demo*="library"]::before {
  background: rgba(130, 170, 255, 0.14);
  color: #b4c8ff;
  content: "资产";
}

.action-link[data-demo*="directory"]::before {
  background: rgba(154, 238, 184, 0.14);
  color: #a8efc0;
  content: "目录";
}

.action-link--secondary {
  min-height: 52px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02)),
    rgba(255, 255, 255, 0.02);
}

.inline-figure {
  margin-top: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.04);
}

.inline-figure img {
  width: 100%;
  max-height: 168px;
  object-fit: contain;
  background: #ffffff;
}

.section-light .inline-figure {
  border-color: rgba(17, 23, 35, 0.1);
  background: rgba(17, 23, 35, 0.03);
}

.section-light .drone-inline-video {
  border-color: rgba(17, 23, 35, 0.1);
  background: rgba(17, 23, 35, 0.03);
}

.subcase-menu {
  display: grid;
  gap: 10px;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.section-light .subcase-menu {
  border-top-color: rgba(17, 23, 35, 0.1);
}

.subcase-menu strong {
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.08em;
}

.subcase-links {
  display: grid;
  gap: 10px;
}

.subcase-menu .action-link {
  min-height: 48px;
  padding: 0 14px;
}

.ai-system {
  overflow: hidden;
}

.ai-system .section-backdrop {
  opacity: 0.34;
}

.ai-shell {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 32px;
  align-items: start;
}

.ai-steps {
  display: grid;
  gap: 16px;
}

.ai-step {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 18px;
  padding: 24px 26px;
}

.ai-step h3,
.service-item h3,
.scenario-card h3 {
  margin: 0 0 10px;
}

.service-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 36px;
}

.service-item {
  padding: 18px 16px;
}

.service-item h3 {
  margin-top: 14px;
}

.service-item .action-group,
.scenario-card .action-group {
  margin-top: 16px;
}

.service-item .action-link,
.scenario-card .action-link {
  width: 100%;
}

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

.demo-modal {
  position: fixed;
  inset: 0;
  z-index: 80;
}

.demo-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(3, 6, 12, 0.72);
  backdrop-filter: blur(10px);
}

.demo-modal__panel {
  position: relative;
  z-index: 1;
  width: min(920px, calc(100vw - 32px));
  max-height: calc(100vh - 48px);
  margin: 24px auto;
  overflow: auto;
  padding: 28px;
  border: 1px solid rgba(17, 23, 35, 0.08);
  border-radius: 28px;
  background:
    radial-gradient(circle at top right, rgba(142, 197, 255, 0.12), transparent 28%),
    linear-gradient(180deg, #ffffff, #f7f9fc);
  box-shadow: 0 28px 80px rgba(17, 23, 35, 0.18);
  contain: layout paint style;
  isolation: isolate;
}

.demo-modal__close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(17, 23, 35, 0.1);
  border-radius: 50%;
  background: rgba(17, 23, 35, 0.04);
  color: #111723;
  font-size: 20px;
  cursor: pointer;
}

.demo-modal__header {
  display: grid;
  gap: 10px;
  padding-right: 56px;
}

.demo-modal__eyebrow {
  margin: 0;
  color: #245f9f;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.demo-modal__header h3 {
  margin: 0;
  color: #111723;
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 400;
}

.demo-modal__lead,
.demo-modal__note {
  margin: 0;
  color: rgba(17, 23, 35, 0.72);
}

.demo-modal__video {
  margin-top: 24px;
}

.demo-modal__player {
  display: block;
  width: 100%;
  min-height: 360px;
  border: 1px solid rgba(17, 23, 35, 0.08);
  border-radius: 24px;
  background: #05070c;
  object-fit: contain;
}

.demo-modal__player::-webkit-media-controls-mute-button,
.demo-modal__player::-webkit-media-controls-volume-slider,
.demo-modal__player::-webkit-media-controls-volume-control-container {
  display: none;
}

.demo-modal__player[hidden] {
  display: none;
}

.demo-detail[hidden] {
  display: none;
}

.demo-detail {
  margin-top: 24px;
  padding: 22px;
  border: 1px solid rgba(17, 23, 35, 0.08);
  border-radius: 24px;
  background: rgba(17, 23, 35, 0.03);
}

.demo-detail__body {
  display: grid;
  gap: 14px;
}

.demo-detail__body p {
  margin: 0;
  color: rgba(17, 23, 35, 0.78);
  line-height: 1.9;
}

.demo-modal__footer {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-modal__panel {
  width: min(520px, calc(100vw - 32px));
  max-height: none;
}

.contact-modal__card {
  margin-top: 24px;
  padding: 24px;
  border: 1px solid rgba(17, 23, 35, 0.08);
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(142, 197, 255, 0.16), rgba(142, 197, 255, 0.04)),
    rgba(17, 23, 35, 0.02);
}

.contact-modal__label,
.contact-modal__hint {
  margin: 0;
  color: rgba(17, 23, 35, 0.66);
}

.contact-modal__value {
  margin: 10px 0 8px;
  color: #111723;
  font-size: clamp(28px, 5vw, 40px);
  font-weight: 400;
  letter-spacing: 0.04em;
}

.contact-modal__actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 22px;
}

.wechat-modal__panel {
  width: min(560px, calc(100vw - 32px));
  max-height: calc(100vh - 48px);
}

.wechat-modal__image-wrap {
  margin-top: 24px;
  padding: 20px;
  border: 1px solid rgba(17, 23, 35, 0.08);
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(142, 197, 255, 0.08), rgba(142, 197, 255, 0.02)),
    #ffffff;
}

.wechat-modal__image {
  display: block;
  width: min(100%, 420px);
  margin: 0 auto;
  border-radius: 18px;
  box-shadow: 0 18px 40px rgba(17, 23, 35, 0.12);
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 36px;
}

.certificate-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  align-items: stretch;
  margin-top: 30px;
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at top right, rgba(142, 197, 255, 0.14), transparent 26%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.04));
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}

.certificate-hero__copy h3 {
  margin: 14px 0 0;
  font-size: clamp(24px, 2.2vw, 34px);
  font-weight: 300;
  letter-spacing: -0.04em;
  color: #111723;
}

.certificate-hero__copy p:last-child {
  margin: 18px 0 0;
  max-width: 56ch;
  color: rgba(17, 23, 35, 0.78);
  font-size: 14px;
  line-height: 1.9;
}

.certificate-hero__media {
  padding: 20px;
  border: 1px solid rgba(17, 23, 35, 0.08);
  border-radius: 24px;
  background:
    radial-gradient(circle at 20% 0%, rgba(76, 170, 255, 0.1), transparent 22%),
    linear-gradient(180deg, rgba(247, 250, 255, 0.96), rgba(241, 246, 252, 0.92));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.certificate-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.certificate-hero__meta span {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid rgba(17, 23, 35, 0.08);
  background: rgba(255, 255, 255, 0.88);
  color: rgba(17, 23, 35, 0.72);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.certificate-hero__row {
  display: grid;
  gap: 12px;
}

.certificate-hero__row + .certificate-hero__row {
  margin-top: 12px;
}

.certificate-hero__row--top {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.certificate-hero__row--bottom {
  grid-template-columns: repeat(5, minmax(0, 1fr));
  width: calc(100% - 8%);
  margin-left: auto;
  margin-right: auto;
}

.certificate-hero__item {
  margin: 0;
  padding: 10px;
  border: 1px solid rgba(17, 23, 35, 0.08);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(249, 251, 255, 0.92));
  box-shadow: 0 10px 24px rgba(17, 23, 35, 0.06);
}

.certificate-hero__item img {
  width: 100%;
  aspect-ratio: 0.78 / 1;
  object-fit: contain;
  object-position: center;
  border-radius: 12px;
  background: #ffffff;
}

.scenario-card {
  overflow: hidden;
  padding: 0;
}

.scenario-card[id] {
  scroll-margin-top: 96px;
}

.scenario-card img {
  aspect-ratio: 4 / 2.55;
  width: 100%;
  object-fit: contain;
  object-position: center center;
  padding: 8px;
  background: rgba(255, 255, 255, 0.04);
}

.scenario-grid-cert .scenario-card img {
  width: 100%;
  height: 260px;
  aspect-ratio: auto;
  object-fit: contain;
  object-position: center center;
  padding: 14px 14px 0;
  background: transparent;
}

.scenario-grid-cert .scenario-card {
  background:
    radial-gradient(circle at 50% 0%, rgba(142, 197, 255, 0.12), transparent 42%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)),
    var(--panel);
}

#team .scenario-card img {
  max-width: calc(100% - 28px);
  max-height: 132px;
  margin: 14px auto 0;
  display: block;
  border-radius: 14px;
}

#team .scenario-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

#team .scenario-card div {
  padding: 14px;
}

#team .scenario-card h3 {
  font-size: 18px;
}

#team .scenario-card p {
  font-size: 13px;
  line-height: 1.75;
}

#cases .section-backdrop img {
  width: 100%;
  object-position: center center;
  filter: saturate(0.98) brightness(0.76);
}

#contact .section-backdrop img {
  width: 100%;
  object-position: center center;
  filter: none;
}

.cases-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(4, 7, 13, 0.18) 0%, rgba(4, 7, 13, 0.34) 44%, rgba(4, 7, 13, 0.5) 100%),
    radial-gradient(circle at 68% 22%, rgba(150, 196, 255, 0.12), transparent 26%);
  pointer-events: none;
}

#cases .scenario-card img {
  aspect-ratio: 4 / 2.75;
  object-fit: contain;
  padding: 8px;
  background: #ffffff;
}

.scenario-card div {
  padding: 16px;
}

.outcome-shell {
  padding: 24px;
}

.outcome-list {
  margin-top: 30px;
}

.contact {
  display: grid;
  align-items: end;
  padding: 160px 0 56px;
}

.contact-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4, 7, 13, 0.02) 0%, rgba(4, 7, 13, 0.08) 58%, rgba(4, 7, 13, 0.18) 100%);
}

.contact-shell {
  display: grid;
  /* grid-template-columns: minmax(0, 1fr) auto; */
  /* gap: 36px; */
  /* align-items: end; */
  /* padding: 38px; */
}

.contact-panel {
  display: inline-grid;
  width: fit-content;
  max-width: min(100%, 1120px);
  padding: 28px 32px;
  border-radius: 28px;
  background: rgba(64, 64, 64, 0.42);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.contact-copy {
  width: fit-content;
  max-width: min(100%, 760px);
}

.site-record {
  padding: 10px 20px 12px;
  background: #242424;
  color: rgba(255, 255, 255, 0.86);
  text-align: center;
}

.site-record p {
  margin: 0;
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.02em;
}

.solution-page .site-header {
  background: rgba(4, 8, 15, 0.72);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.solution-page .header-inner {
  border-bottom: 0;
}

.solution-page .brand-copy strong,
.solution-page .brand-copy em,
.solution-page .eyebrow,
.solution-page .site-nav a {
  color: rgba(244, 247, 251, 0.92);
}

.solution-nav {
  gap: 8px;
}

.solution-hero {
  min-height: 100vh;
}

.solution-hero__content {
  align-items: end;
}

.solution-hero__actions {
  margin-top: 24px;
}

.solution-highlight {
  width: min(100%, 360px);
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 28px;
  background: rgba(5, 9, 18, 0.62);
  box-shadow: var(--shadow);
}

.solution-highlight__eyebrow {
  margin: 0 0 14px;
  color: var(--text-soft);
  font-size: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.solution-highlight__list {
  margin: 0;
  padding-left: 18px;
  color: var(--text);
  display: grid;
  gap: 10px;
}

.solution-section {
  position: relative;
}

.solution-card-grid,
.solution-metric-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.solution-scenario-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

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

.faq-item {
  padding: 28px 30px;
  border: 1px solid rgba(17, 17, 17, 0.08);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 18px 48px rgba(17, 24, 39, 0.08);
}

.faq-item h3 {
  margin: 0 0 10px;
  color: #121826;
  font-size: 24px;
  font-weight: 600;
}

.faq-item p {
  margin: 0;
  color: rgba(18, 24, 38, 0.76);
  font-size: 16px;
  line-height: 1.8;
}

.contact-side {
  display: grid;
  gap: 18px;
  justify-items: start;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  will-change: opacity, transform;
  transition:
    opacity 0.56s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.56s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1120px) {
  .site-nav {
    display: none;
  }

  .two-column,
  .ai-shell,
  .contact-shell,
  .business-featured {
    grid-template-columns: 1fr;
  }

  .positioning-track {
    min-height: 320px;
  }

  .business-grid,
  .scenario-grid,
  .service-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

  .certificate-hero {
    grid-template-columns: 1fr;
  }

  .certificate-hero__row--top {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .certificate-hero__row--bottom {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    width: 100%;
    margin-left: 0;
    margin-right: 0;
  }

  .business-featured {
    display: grid;
    grid-template-columns: 1fr;
    grid-column: span 2;
    min-height: auto;
  }

  .solution-highlight {
    width: 100%;
  }

}

@supports (-webkit-touch-callout: none) {
  .site-header,
  .mobile-nav,
  .nav-cta,
  .contact-panel,
  .section-backdrop img {
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
  }
}

@media (max-width: 760px) {
  html {
    scroll-behavior: auto;
  }

  .site-header {
    padding: 0;
  }

  .header-inner {
    display: flex;
    padding: 12px 14px;
    justify-content: space-between;
    gap: 12px;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    transition: none;
  }

  .nav-cta {
    display: none;
  }

  .site-nav {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .brand {
    justify-self: start;
    gap: 12px;
    min-width: 0;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 9px;
  }

  .brand-copy {
    text-align: left;
    min-width: 0;
  }

  .brand-copy strong {
    font-size: 16px;
    font-weight: 400;
    letter-spacing: 0.03em;
    white-space: nowrap;
  }

  .brand-copy em {
    display: block;
    font-size: 9px;
    letter-spacing: 0.14em;
    white-space: nowrap;
  }

  .hero {
    min-height: 100dvh;
    padding-top: max(88px, calc(64px + env(safe-area-inset-top, 0px)));
    padding-bottom: max(16px, env(safe-area-inset-bottom, 0px));
  }

  .contact {
    padding-top: 96px;
    min-height: auto;
  }

  .hero-content {
    min-height: calc(100dvh - max(88px, calc(64px + env(safe-area-inset-top, 0px))) - max(16px, env(safe-area-inset-bottom, 0px)));
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto;
    gap: 18px;
    padding: 0 16px 0;
    align-items: stretch;
  }

  .hero-side {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: flex-end;
    justify-items: stretch;
    width: 100%;
    justify-self: stretch;
    align-self: stretch;
    margin-top: auto;
    gap: 10px;
  }

  .hero-side .drone-inline-video {
    width: min(46vw, 188px);
    max-width: 188px;
    justify-self: end;
    margin-left: auto;
    margin-top: auto;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.16);
  }

  .drone-inline-video__play {
    width: 52px;
    height: 52px;
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.18);
  }

  .drone-inline-video__play::before {
    border-top-width: 8px;
    border-bottom-width: 8px;
    border-left-width: 13px;
  }

  .section-dark,
  .section-light {
    padding: 92px 0;
  }

  .hero h1 {
    max-width: none;
    margin-top: 10px;
    font-size: clamp(24px, 6.8vw, 34px);
    white-space: normal;
    line-height: 1.02;
  }

  .hero .eyebrow {
    font-size: 11px;
    letter-spacing: 0.22em;
  }

  .hero-summary {
    max-width: none;
    margin-top: 16px;
    font-size: 15px;
    line-height: 1.8;
  }

  .hero-copy {
    max-width: none;
    align-self: start;
    padding: 18px 2px 0;
    border-radius: 0;
    background:
      linear-gradient(180deg, rgba(8, 14, 24, 0.34) 0%, rgba(8, 14, 24, 0.12) 72%, rgba(8, 14, 24, 0) 100%);
  }

  .section-copy h2,
  .section-heading h2,
  .contact-copy h2 {
    max-width: none;
    font-size: clamp(24px, 6.8vw, 34px);
    white-space: normal;
    line-height: 1.08;
  }

  .positioning-track {
    position: static;
    min-height: auto;
    display: grid;
    gap: 10px;
  }

  .business-grid,
  .scenario-grid,
  .service-strip {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .hero-video-menu {
    display: none;
  }

  .positioning .two-column {
    grid-template-columns: 1fr;
    gap: 0;
    align-items: stretch;
  }

  .positioning .section-copy {
    display: none;
  }

  .positioning.section-dark {
    padding: 68px 0 60px;
  }

  .positioning-slider {
    width: 100%;
    justify-self: stretch;
  }

  .positioning .section-backdrop {
    opacity: 0.18;
    background-image:
      linear-gradient(180deg, rgba(7, 13, 23, 0.16), rgba(7, 13, 23, 0.32)),
      url("../assets/da/m400-training-agent-20250610-084-2938x1650.jpg");
    background-size: cover;
    background-repeat: no-repeat;
    background-position: 72% 32%;
  }

  .positioning .section-backdrop img {
    display: none;
  }

  .positioning-panel {
    position: relative;
    inset: auto;
    opacity: 1;
    transform: none;
    pointer-events: auto;
    padding: 22px;
    border: 1px solid var(--border);
    border-radius: 24px;
    background: var(--panel);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  }

  .positioning-panel.is-active {
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }

  .positioning-panel strong {
    display: block;
    font-size: 18px;
    line-height: 1.28;
    letter-spacing: -0.03em;
  }

  .positioning-panel p {
    margin: 0;
    font-size: 14px;
    line-height: 1.8;
  }

  .positioning-panel strong + p {
    margin-top: 10px;
  }

  .positioning-panel p + p {
    margin-top: 12px;
  }

  .positioning-pager {
    display: none;
  }

  .certificate-hero {
    padding: 24px;
    border-radius: 24px;
  }

  .certificate-hero__media {
    padding: 16px;
  }

  .certificate-hero__meta {
    gap: 8px;
    margin-bottom: 12px;
  }

  .certificate-hero__meta span {
    font-size: 11px;
    letter-spacing: 0.04em;
  }

  .certificate-hero__row--top,
  .certificate-hero__row--bottom {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
    margin-left: 0;
    margin-right: 0;
  }

  .business-featured {
    grid-column: span 1;
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 20px;
  }

  .card-media {
    aspect-ratio: 16 / 9;
    min-height: 198px;
    max-height: 256px;
  }

  .business-featured .card-media {
    padding: 0;
  }

  .business-featured .card-copy {
    min-height: auto;
    padding: 0;
  }

  .business-mosaic {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
  }

  .business-mosaic__pane {
    aspect-ratio: auto;
    min-height: 164px;
    height: 164px;
    border-radius: 18px;
  }

  .business-mosaic__pane figcaption {
    font-size: 12px;
    left: 10px;
    right: 10px;
    bottom: 10px;
  }

  .card-copy {
    padding: 24px 18px 24px;
  }

  .business-featured .card-copy h3 {
    font-size: 22px;
    line-height: 1.18;
  }

  .contact-shell,
  .outcome-shell,
  .positioning-points article,
  .business-card,
  .ai-step,
  .service-item {
    padding: 22px;
    border-radius: 24px;
  }

  .business-card,
  .scenario-card,
  .service-item,
  .ai-step,
  .outcome-shell {
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  }

  .business-card > h3,
  .service-item h3,
  .scenario-card h3 {
    font-size: 18px;
    line-height: 1.28;
    margin-bottom: 10px;
  }

  .business-card > p,
  .service-item p,
  .scenario-card p {
    font-size: 14px;
    line-height: 1.8;
  }

  .action-link,
  .action-link--secondary {
    min-height: 56px;
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 14px;
  }

  .ai-shell {
    gap: 22px;
  }

  .ai-step {
    grid-template-columns: 52px 1fr;
    gap: 16px;
  }

  .scenario-card img {
    aspect-ratio: 16 / 10;
    padding: 10px;
  }

  .scenario-card div {
    padding: 18px;
  }

  #team .scenario-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  #team .scenario-card img {
    max-width: calc(100% - 20px);
    max-height: 164px;
    margin-top: 12px;
  }

  #team .scenario-card div {
    padding: 18px;
  }

  .section-heading p,
  .section-copy p,
  .contact-copy p {
    margin-top: 16px;
    font-size: 14px;
    line-height: 1.85;
  }

  .demo-modal__panel {
    width: min(100vw - 12px, 920px);
    max-height: calc(100vh - 12px);
    margin: 6px auto;
    padding: 18px;
    border-radius: 22px;
    background: #f7f9fc;
    box-shadow: 0 12px 26px rgba(17, 23, 35, 0.12);
  }

  .demo-modal__header {
    gap: 8px;
    padding-right: 44px;
  }

  .demo-modal__header h3 {
    font-size: clamp(22px, 7vw, 30px);
  }

  .demo-modal__player {
    min-height: 240px;
    border-radius: 18px;
  }

  .demo-detail {
    margin-top: 18px;
    padding: 18px;
    border-radius: 18px;
    background: rgba(17, 23, 35, 0.02);
  }

  .hero-video-option {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.14);
  }

  .solution-card-grid,
  .solution-metric-grid {
    grid-template-columns: 1fr;
  }

  .solution-scenario-grid {
    grid-template-columns: 1fr;
  }

  .faq-item {
    padding: 22px 20px;
  }

  .contact-modal__panel {
    width: min(100vw - 12px, 520px);
  }

  .wechat-modal__panel {
    width: min(100vw - 12px, 560px);
  }

  .demo-modal__backdrop {
    background: rgba(3, 6, 12, 0.58);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .contact-modal__card {
    margin-top: 18px;
    padding: 18px;
    border-radius: 18px;
  }

  .contact-modal__value {
    font-size: clamp(24px, 7vw, 32px);
  }

  .contact-modal__actions {
    margin-top: 18px;
  }

  .wechat-modal__image-wrap {
    margin-top: 18px;
    padding: 16px;
    border-radius: 18px;
  }

  .wechat-modal__image {
    width: min(100%, 360px);
    border-radius: 14px;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: opacity 0.32s ease;
  }

  .reveal.is-visible {
    opacity: 1;
    transform: none;
  }
}