:root {
  --bg: #03080d;
  --bg-2: #071019;
  --carbon: #14171a;
  --carbon-2: #1a1d20;
  --graphite: #22262b;
  --line: rgba(255, 255, 255, 0.11);
  --line-strong: rgba(255, 255, 255, 0.2);
  --line-gold: rgba(241, 199, 108, 0.35);
  --text: #ffffff;
  --soft: #d9dde0;
  --muted: #9ca2a8;
  --dim: #6f767d;
  --gold: #f1c76c;
  --gold-2: #d7a24a;
  --gold-3: #9d6a25;
  --radius: 20px;
  --radius-lg: 30px;
  --max: 1720px;
  --header: 70px;
  --font-reference: "The Future", "Geist", "Inter", "DM Sans", "Aptos", "Segoe UI Variable", "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

html[data-lang="en"] .lang-zh,
html[data-lang="zh"] .lang-en {
  display: none !important;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--text);
  background:
    radial-gradient(circle at 78% 4%, rgba(241, 199, 108, 0.1), transparent 22%),
    radial-gradient(circle at 12% 24%, rgba(255, 255, 255, 0.04), transparent 24%),
    var(--bg);
  font-family: var(--font-reference);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  display: block;
}

img {
  max-width: 100%;
}

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

button {
  font: inherit;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 12px;
  z-index: 100;
  transform: translateY(-160%);
  border: 1px solid var(--gold);
  border-radius: 999px;
  background: var(--carbon);
  padding: 10px 16px;
}

.skip-link:focus {
  transform: translateY(0);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  width: min(var(--max), calc(100% - 40px));
  height: var(--header);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  margin: 14px auto 0;
  padding: 0 20px 0 22px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  background: rgba(20, 23, 26, 0.94);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: max-content;
}

.brand__logo {
  width: clamp(204px, 14vw, 238px);
  max-height: 54px;
  object-fit: contain;
  object-position: left center;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(12px, 1.45vw, 24px);
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.9rem;
  font-weight: 560;
  letter-spacing: 0.02em;
}

.site-nav a,
.lang-switch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  border-radius: 999px;
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.lang-switch:hover,
.lang-switch:focus-visible {
  color: var(--gold);
}

.nav-cta,
.lang-switch {
  border: 1px solid rgba(255, 255, 255, 0.58);
}

.nav-cta {
  padding: 0 22px;
}

.lang-switch {
  min-width: 70px;
  padding: 0 16px;
  color: var(--text);
  background: transparent;
  cursor: pointer;
}

.nav-cta:hover,
.nav-cta:focus-visible,
.lang-switch:hover,
.lang-switch:focus-visible {
  border-color: var(--gold);
  background: rgba(241, 199, 108, 0.08);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border: 1px solid rgba(255, 255, 255, 0.38);
  border-radius: 999px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
}

.menu-toggle span:not(.sr-only) {
  width: 18px;
  height: 2px;
  background: currentColor;
}

.section-shell,
.hero__content,
.stat-strip,
.case-rail {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  min-height: 0;
  padding: 46px 0 50px;
}

.hero__content {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(460px, 1fr);
  gap: clamp(34px, 5vw, 86px);
  align-items: center;
}

.hero__copy {
  max-width: 780px;
}

.section-kicker {
  margin: 0 0 20px;
  color: var(--gold);
  font-size: 0.8rem;
  font-weight: 680;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

html[data-lang="zh"] .section-kicker {
  letter-spacing: 0.12em;
}

.hero h1,
.section h2 {
  margin: 0;
  color: var(--text);
  font-family: var(--font-reference);
  font-weight: 400;
  letter-spacing: 0.025em;
}

.hero h1 {
  max-width: 760px;
  font-size: clamp(3rem, 5.25vw, 5.85rem);
  line-height: 1.04;
  text-transform: uppercase;
}

.hero h1 span,
.hero h1 small {
  display: block;
}

.hero h1 span {
  letter-spacing: 0.06em;
}

.hero h1 small {
  margin-top: 6px;
  font-size: 0.38em;
  letter-spacing: 0.34em;
}

.hero__line {
  margin: 20px 0 0;
  color: var(--gold);
  font-size: clamp(1.18rem, 1.75vw, 1.72rem);
  font-weight: 440;
  line-height: 1.35;
  letter-spacing: 0.04em;
}

.hero__body {
  max-width: 690px;
  margin: 18px 0 0;
  color: var(--soft);
  font-size: 1rem;
  line-height: 1.62;
  letter-spacing: 0.015em;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 44px;
  padding: 0 22px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 999px;
  color: var(--text);
  font-size: 0.94rem;
  font-weight: 620;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.button svg {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  border-color: var(--gold);
  color: var(--gold);
}

.button--gold {
  border-color: var(--gold);
  color: #090909;
  background: linear-gradient(135deg, var(--gold), #d59a3d);
}

.button--gold:hover,
.button--gold:focus-visible {
  color: #090909;
  background: linear-gradient(135deg, #ffd985, #d59a3d);
}

.hero-visual {
  position: relative;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--carbon);
  box-shadow: 0 32px 100px rgba(0, 0, 0, 0.28);
}

.hero-visual img {
  width: 100%;
  min-height: 360px;
  max-height: 440px;
  object-fit: cover;
  object-position: center;
}

.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: inherit;
  pointer-events: none;
}

.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 60px;
  padding-top: 30px;
  border-top: 1px solid var(--line);
}

.stat-strip div {
  display: flex;
  align-items: baseline;
  gap: 11px;
  min-width: 0;
}

.stat-strip strong {
  color: var(--text);
  font-size: clamp(1.9rem, 2.6vw, 3rem);
  font-weight: 400;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.stat-strip span {
  color: var(--muted);
  font-size: 0.94rem;
  letter-spacing: 0.03em;
}

.section {
  padding: 58px 0;
}

.split-head,
.carousel-head,
.system-grid,
.ecosystem-grid,
.contact-card,
.architecture-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(380px, 0.86fr);
  gap: clamp(40px, 7vw, 112px);
  align-items: start;
}

.section h2 {
  max-width: 920px;
  font-size: clamp(2.4rem, 4.3vw, 5.35rem);
  line-height: 1.08;
}

html[data-lang="zh"] .section h2 {
  line-height: 1.16;
  letter-spacing: 0.035em;
}

.lead-block,
.section-copy {
  color: var(--soft);
  font-size: 1.06rem;
  line-height: 1.8;
  letter-spacing: 0.015em;
}

.lead-block p {
  margin: 0 0 18px;
}

.lead-block p:first-child {
  color: var(--text);
  font-size: 1.18rem;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 56px;
}

.feature-band {
  padding: 22px 0 24px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #040a10;
}

.solution-grid--three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 0;
  gap: 0;
}

.solution-card,
.case-card,
.diagnosis-grid article,
.partner-grid article,
.contact-card,
.revenue-map {
  border-radius: var(--radius);
  background: var(--carbon-2);
}

.solution-card {
  min-height: 220px;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.solution-grid--three .solution-card {
  min-height: 142px;
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  column-gap: 18px;
  align-content: start;
  padding: 18px 30px;
  border: 0;
  border-right: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
}

.solution-grid--three .solution-card:last-child {
  border-right: 0;
}

.feature-icon {
  grid-row: span 3;
  width: 50px;
  height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--gold);
  border-radius: 50%;
  color: var(--gold);
  font-size: 1.35rem;
  line-height: 1;
}

.solution-card span:first-child,
.stack-list > article > span,
.tag,
.revenue-map > article > span {
  color: var(--gold);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.solution-card .feature-icon {
  width: 50px;
  height: 50px;
  font-size: 1.35rem;
  letter-spacing: 0;
  text-transform: none;
}

.solution-card h3,
.solution-card h2,
.stack-list h3,
.case-card h3,
.diagnosis-grid h3,
.partner-grid h3,
.revenue-map h3 {
  margin: 18px 0 12px;
  color: var(--text);
  font-size: clamp(1.3rem, 1.8vw, 1.72rem);
  font-weight: 430;
  line-height: 1.22;
  letter-spacing: 0.02em;
}

.solution-card h2 {
  margin: 0 0 4px;
  font-size: clamp(1.08rem, 1.35vw, 1.34rem);
  text-transform: uppercase;
}

.solution-card h3 {
  margin: 0 0 9px;
  color: var(--gold);
  font-size: 1rem;
}

.solution-card p,
.case-card p,
.diagnosis-grid p,
.partner-grid p,
.stack-list p,
.revenue-map p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

.presence {
  padding: 42px 0;
  color: #060a0e;
  background:
    radial-gradient(circle at 64% 50%, rgba(241, 199, 108, 0.22), transparent 6%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.98), rgba(244, 241, 235, 0.96));
}

.presence-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.42fr) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 76px);
  align-items: center;
}

.presence h2 {
  margin: 0 0 14px;
  color: #060a0e;
  font-size: clamp(1.75rem, 2.6vw, 2.8rem);
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.presence p {
  max-width: 320px;
  margin: 0 0 18px;
  color: #1b2024;
  font-size: 0.98rem;
  line-height: 1.55;
}

.button--light {
  min-width: 168px;
  border-color: rgba(6, 10, 14, 0.48);
  color: #060a0e;
}

.button--light:hover,
.button--light:focus-visible {
  border-color: var(--gold-3);
  color: #060a0e;
  background: rgba(241, 199, 108, 0.16);
}

.location-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 4vw, 70px);
  min-height: 126px;
  align-items: center;
  background:
    radial-gradient(circle at 18% 54%, rgba(0, 0, 0, 0.08), transparent 2%),
    radial-gradient(circle at 52% 58%, rgba(0, 0, 0, 0.08), transparent 2%),
    radial-gradient(circle at 84% 54%, rgba(0, 0, 0, 0.08), transparent 2%),
    linear-gradient(0deg, rgba(0, 0, 0, 0.035), rgba(0, 0, 0, 0.035));
}

.location-grid article {
  display: grid;
  justify-items: center;
  gap: 4px;
  color: #060a0e;
  text-transform: uppercase;
}

.location-grid strong {
  font-size: 0.9rem;
  letter-spacing: 0.06em;
}

.location-grid span {
  color: #24282c;
  font-size: 0.9rem;
}

.case-section {
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(3, 8, 13, 0), #020507 44%, #020507);
}

.carousel-head {
  align-items: end;
}

.carousel-dots {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding-bottom: 12px;
}

.carousel-dots span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.36);
}

.carousel-dots span:first-child {
  background: var(--gold);
}

.case-rail {
  display: grid;
  grid-template-columns: repeat(3, minmax(360px, 1fr));
  gap: 22px;
  margin-top: 38px;
}

.case-card {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.case-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.case-card > div {
  padding: 26px;
}

.case-card h3 {
  margin-top: 14px;
  font-size: clamp(1.48rem, 2vw, 2rem);
}

.mini-list {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.mini-list li {
  position: relative;
  padding-left: 18px;
  color: var(--soft);
  font-size: 0.93rem;
  line-height: 1.45;
}

.mini-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
}

.architecture {
  background: var(--bg);
}

.revenue-map {
  overflow: hidden;
  border: 1px solid var(--line);
}

.revenue-map article {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr);
  gap: 22px;
  padding: 25px 28px;
  border-bottom: 1px solid var(--line);
}

.revenue-map article:last-child {
  border-bottom: 0;
}

.revenue-map h3 {
  margin-top: 0;
}

.system-section {
  background:
    radial-gradient(circle at 78% 18%, rgba(241, 199, 108, 0.08), transparent 26%),
    var(--bg-2);
}

.stack-list {
  border-top: 1px solid var(--line-strong);
}

.stack-list article {
  display: grid;
  grid-template-columns: 128px minmax(0, 1fr);
  gap: 24px;
  padding: 27px 0;
  border-bottom: 1px solid var(--line);
}

.stack-list h3 {
  margin-top: 0;
}

.stack-list p {
  grid-column: 2;
  margin-top: -12px;
}

.diagnosis {
  background: #05090d;
}

.diagnosis .section-shell > h2 {
  max-width: 1080px;
}

.diagnosis-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 38px;
}

.diagnosis-grid article {
  min-height: 250px;
  padding: 28px;
  border: 1px solid rgba(241, 199, 108, 0.18);
}

.ecosystem {
  background: var(--carbon);
}

.hub-panel {
  position: relative;
  min-height: 460px;
  display: grid;
  align-content: center;
  gap: 16px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 34px;
  background:
    radial-gradient(circle at 50% 50%, rgba(241, 199, 108, 0.16), transparent 18%),
    var(--bg);
}

.orbit {
  position: absolute;
  width: 380px;
  height: 380px;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(241, 199, 108, 0.4);
  border-radius: 50%;
}

.orbit::before,
.orbit::after {
  content: "";
  position: absolute;
  inset: 56px;
  border: 1px solid rgba(241, 199, 108, 0.22);
  border-radius: 50%;
}

.orbit::after {
  inset: 116px;
}

.hub-panel article {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.hub-panel article:last-child {
  border-bottom: 0;
}

.hub-panel strong {
  color: var(--gold);
  font-size: 1.55rem;
  font-weight: 430;
  letter-spacing: 0.03em;
}

.hub-panel span {
  max-width: 330px;
  color: var(--soft);
  text-align: right;
  line-height: 1.65;
}

.partner-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin-top: 24px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.work-head {
  text-align: center;
}

.work-head h2 {
  margin: 0;
  color: var(--text);
  font-size: clamp(1.65rem, 2.55vw, 2.25rem);
  font-weight: 430;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.partner-grid article {
  min-height: 132px;
  padding: 22px 24px;
  border: 0;
  border-right: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  text-align: center;
}

.partner-grid article:last-child {
  border-right: 0;
}

.contact {
  padding-bottom: 104px;
}

.contact-card {
  padding: clamp(30px, 5vw, 58px);
  border: 1px solid var(--line-gold);
  background:
    linear-gradient(135deg, rgba(241, 199, 108, 0.1), transparent 38%),
    var(--carbon-2);
}

.contact-lines {
  display: grid;
  gap: 15px;
  align-content: start;
}

.contact-lines p {
  margin: 0 0 8px;
}

.contact-lines strong {
  display: block;
  color: var(--gold);
  font-size: 2rem;
  font-weight: 430;
  line-height: 1.15;
}

.contact-lines span,
.contact-lines a {
  color: var(--soft);
  font-size: 1.04rem;
}

.contact-lines a:hover,
.contact-lines a:focus-visible {
  color: var(--gold);
}

.footer {
  border-top: 1px solid var(--line);
  background: var(--carbon);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.35fr repeat(3, minmax(150px, 1fr));
  gap: clamp(24px, 5vw, 62px);
  padding: 30px 0;
}

.footer-grid img {
  width: 210px;
  height: auto;
}

.footer-summary {
  max-width: 260px;
  margin: 12px 0 0;
  color: var(--soft);
  font-size: 0.96rem;
  line-height: 1.55;
}

.footer h2 {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.footer a {
  display: block;
  margin: 8px 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer a:hover,
.footer a:focus-visible {
  color: var(--gold);
}

.copyright {
  margin: 0;
  padding: 14px 24px 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-align: center;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}

@media (max-width: 1180px) {
  .site-nav {
    gap: 14px;
    font-size: 0.86rem;
  }

  .brand__logo {
    width: 216px;
  }

  .hero__content,
  .split-head,
  .carousel-head,
  .system-grid,
  .ecosystem-grid,
  .contact-card,
  .architecture-grid {
    grid-template-columns: 1fr;
  }

  .hero__copy {
    max-width: 920px;
  }

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

  .solution-grid--three .solution-card,
  .partner-grid article {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .solution-grid--three .solution-card:last-child,
  .partner-grid article:last-child {
    border-bottom: 0;
  }

  .case-rail {
    overflow-x: auto;
    padding-bottom: 12px;
  }
}

@media (max-width: 1120px) {
  :root {
    --header: auto;
  }

  .site-header {
    width: calc(100% - 28px);
    min-height: 72px;
    margin-top: 14px;
    padding: 8px 12px 8px 16px;
  }

  .brand__logo {
    width: 202px;
    max-height: 54px;
  }

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

  .site-nav {
    position: absolute;
    z-index: 80;
    left: 0;
    right: 0;
    top: calc(100% + 10px);
    display: grid;
    gap: 8px;
    justify-content: stretch;
    justify-items: stretch;
    padding: 14px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius);
    background: #14171a;
    box-shadow: 0 26px 80px rgba(0, 0, 0, 0.58);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 180ms ease, transform 180ms ease;
  }

  .site-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav a,
  .nav-cta,
  .lang-switch {
    justify-content: center;
    min-height: 46px;
    padding: 0 16px;
  }

  .hero {
    padding: 38px 0 44px;
  }

  .hero h1 {
    font-size: clamp(3rem, 12vw, 4.5rem);
  }

  html[data-lang="zh"] .hero h1 {
    font-size: clamp(2.55rem, 10.5vw, 4.1rem);
  }

  .hero-visual img {
    min-height: 280px;
    max-height: none;
  }

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

  .stack-list article {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .stack-list p {
    grid-column: auto;
    margin-top: 0;
  }

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

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

@media (max-width: 620px) {
  .section-shell,
  .hero__content,
  .stat-strip,
  .case-rail {
    width: calc(100% - 28px);
  }

  .hero {
    padding: 28px 0 32px;
  }

  .hero__content {
    gap: 22px;
  }

  .brand__logo {
    width: 178px;
  }

  .hero h1 {
    font-size: clamp(2.05rem, 10vw, 2.9rem);
  }

  html[data-lang="zh"] .hero h1 {
    font-size: clamp(2.25rem, 10vw, 3.05rem);
  }

  .hero__line {
    margin-top: 16px;
    font-size: 1.06rem;
    line-height: 1.32;
  }

  .hero__body {
    margin-top: 14px;
    font-size: 0.94rem;
    line-height: 1.5;
  }

  .hero__actions {
    margin-top: 20px;
  }

  .hero-visual img {
    min-height: 220px;
  }

  .hero__actions,
  .button {
    width: 100%;
  }

  .button {
    min-height: 46px;
  }

  .solution-grid,
  .partner-grid,
  .stat-strip,
  .footer-grid {
    grid-template-columns: 1fr;
  }

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

  .feature-icon {
    margin-bottom: 10px;
  }

  .presence-grid,
  .location-grid {
    grid-template-columns: 1fr;
  }

  .case-rail {
    grid-template-columns: repeat(3, minmax(292px, 86vw));
  }

  .section {
    padding: 44px 0;
  }

  .feature-band {
    padding: 20px 0 22px;
  }

  .presence {
    padding: 34px 0;
  }

  .partner-grid article {
    min-height: 0;
  }

  .revenue-map article {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 24px;
  }

  .hub-panel {
    min-height: 400px;
    padding: 24px;
  }

  .hub-panel article {
    display: grid;
  }

  .hub-panel span {
    max-width: none;
    text-align: left;
  }

  .footer-grid img {
    width: 212px;
  }
}