:root {
  --background: #f4f4f7;
  --foreground: #080811;
  --muted: #e9e9ef;
  --muted-strong: #d9dae2;
  --muted-text: #84858f;
  --primary: #0057ff;
  --primary-contrast: #ffffff;
  --border: #d9dae2;
  --footer: #080811;
  --footer-text: #f4f4f7;
  --success: #10b981;
  --font-heading: "Inter Tight", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--foreground);
  font-family: var(--font-mono);
}

html[lang="zh-CN"] body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", var(--font-mono);
}

html[lang="zh-CN"] .brand,
html[lang="zh-CN"] .hero-title,
html[lang="zh-CN"] .section-heading h2,
html[lang="zh-CN"] .team-cta h2,
html[lang="zh-CN"] h1,
html[lang="zh-CN"] h2,
html[lang="zh-CN"] h3 {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", var(--font-heading);
}

body.menu-open {
  overflow: hidden;
}

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

button,
input,
select,
textarea {
  font: inherit;
}

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

.shell {
  width: min(100%, 1800px);
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  position: fixed;
  z-index: 50;
  top: 0;
  left: 0;
  right: 0;
  transition: background 250ms ease, border-color 250ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  background: rgba(244, 244, 247, 0.86);
  border-bottom: 1px solid rgba(217, 218, 226, 0.85);
  backdrop-filter: blur(18px);
}

.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 14px;
  text-transform: uppercase;
}

.brand-mark {
  width: 24px;
  height: 24px;
  background: var(--primary);
  border-radius: 3px;
  transition: border-radius 250ms ease;
}

.brand:hover .brand-mark {
  border-radius: 999px;
}

.desktop-nav,
.header-actions {
  display: none;
}

.desktop-nav {
  align-items: center;
  gap: 36px;
}

.desktop-nav a,
.status-label,
.header-cta,
.mobile-nav a {
  font-size: 12px;
  text-transform: uppercase;
}

.desktop-nav a {
  color: var(--muted-text);
  transition: color 180ms ease;
}

.desktop-nav a:hover {
  color: var(--foreground);
}

.header-actions {
  align-items: center;
  gap: 18px;
}

.status-dot {
  width: 7px;
  height: 7px;
  display: inline-block;
  border-radius: 999px;
  background: var(--success);
  box-shadow: 0 0 0 5px rgba(16, 185, 129, 0.12);
}

.status-label {
  color: var(--muted-text);
}

.header-cta,
.mobile-cta {
  padding: 11px 18px;
  background: var(--foreground);
  color: var(--background);
  font-family: var(--font-heading);
  font-weight: 700;
  transition: background 180ms ease, color 180ms ease;
}

.header-cta:hover,
.mobile-cta:hover {
  background: var(--primary);
  color: var(--primary-contrast);
}

.language-toggle {
  min-width: 44px;
  height: 34px;
  padding: 0 12px;
  border: 1px solid rgba(132, 133, 143, 0.42);
  background: transparent;
  color: var(--muted-text);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  transition: border-color 180ms ease, color 180ms ease, background 180ms ease;
}

.language-toggle:hover {
  border-color: var(--primary);
  color: var(--foreground);
  background: rgba(0, 87, 255, 0.04);
}

.menu-button {
  width: 42px;
  height: 42px;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  gap: 6px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.menu-button span {
  width: 24px;
  height: 2px;
  background: var(--foreground);
  transition: transform 180ms ease, opacity 180ms ease, width 180ms ease;
}

.menu-button span:nth-child(2) {
  width: 17px;
}

.menu-button[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.menu-button[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-button[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 26px;
  padding: 28px 24px 34px;
  border-top: 1px solid var(--border);
  background: rgba(244, 244, 247, 0.98);
}

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

.mobile-nav a {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 800;
}

.mobile-nav .mobile-cta {
  width: fit-content;
  font-size: 12px;
}

.mobile-language-toggle {
  width: fit-content;
  margin-top: -6px;
}

.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  padding: 136px 0 36px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--background), rgba(244, 244, 247, 0.72), rgba(244, 244, 247, 0.3));
}

.hero-annotation {
  position: absolute;
  z-index: 2;
  top: 104px;
  right: 24px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  color: rgba(132, 133, 143, 0.75);
  font-size: 10px;
  text-transform: uppercase;
}

.hero-content {
  position: relative;
  z-index: 3;
}

.eyebrow,
.ticker-label,
.side-label {
  margin: 0;
  color: var(--primary);
  font-size: 10px;
  text-transform: uppercase;
}

.hero-title,
.section-heading h2,
.team-cta h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 900;
  line-height: 0.96;
}

.hero-title {
  margin-top: 18px;
  max-width: 900px;
  font-size: 48px;
}

.hero-title span,
.section-heading .accent {
  color: var(--primary);
}

.team-title {
  max-width: 920px;
}

.hero-copy {
  max-width: 640px;
  margin: 28px 0 0;
  color: var(--muted-text);
  font-size: 14px;
  line-height: 1.8;
}

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

.button,
.submit-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 14px 28px;
  border: 1px solid transparent;
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease;
}

.button.primary {
  background: var(--primary);
  color: var(--primary-contrast);
}

.button.secondary {
  border-color: rgba(8, 8, 17, 0.22);
  color: var(--foreground);
}

.button.dark {
  background: var(--foreground);
  color: var(--background);
}

.button:hover,
.submit-button:hover {
  background: var(--foreground);
  border-color: var(--foreground);
  color: var(--background);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  margin-top: 46px;
  background: rgba(217, 218, 226, 0.7);
}

.metric-card {
  padding: 22px 18px;
  background: rgba(244, 244, 247, 0.72);
  backdrop-filter: blur(10px);
}

.metric-value {
  display: block;
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 800;
}

.metric-label {
  display: block;
  margin-top: 6px;
  color: var(--muted-text);
  font-size: 10px;
  text-transform: uppercase;
}

.ticker-section {
  padding: 64px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.ticker-label {
  color: rgba(132, 133, 143, 0.7);
  text-align: center;
  margin-bottom: 36px;
}

.ticker-wrap {
  position: relative;
  overflow: hidden;
}

.ticker-wrap::before,
.ticker-wrap::after {
  content: "";
  position: absolute;
  z-index: 2;
  top: 0;
  bottom: 0;
  width: 80px;
  pointer-events: none;
}

.ticker-wrap::before {
  left: 0;
  background: linear-gradient(to right, var(--background), transparent);
}

.ticker-wrap::after {
  right: 0;
  background: linear-gradient(to left, var(--background), transparent);
}

.ticker {
  display: flex;
  width: max-content;
  animation: ticker 30s linear infinite;
}

.ticker span {
  flex: 0 0 auto;
  padding: 0 34px;
  color: rgba(132, 133, 143, 0.42);
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 800;
  text-transform: uppercase;
}

@keyframes ticker {
  to {
    transform: translateX(-50%);
  }
}

.section {
  padding: 96px 0;
}

.border-top {
  border-top: 1px solid var(--border);
}

.border-bottom {
  border-bottom: 1px solid var(--border);
}

.section-heading {
  margin-bottom: 64px;
}

.section-heading h2 {
  margin-top: 16px;
  max-width: 760px;
  font-size: 38px;
}

.section-heading.compact {
  margin-bottom: 0;
}

.rule {
  display: block;
  width: 64px;
  height: 1px;
  margin-top: 30px;
  background: var(--primary);
}

.stage-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.stage-card {
  display: grid;
  border: 1px solid rgba(217, 218, 226, 0.75);
  background: var(--background);
  overflow: hidden;
}

.stage-visual {
  position: relative;
  min-height: 280px;
  overflow: hidden;
  background: var(--muted);
}

.stage-visual img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
  opacity: 0.64;
  transition: transform 500ms ease, opacity 500ms ease;
}

.stage-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(244, 244, 247, 0.82), transparent);
}

.stage-number {
  position: absolute;
  top: 24px;
  left: 24px;
  color: rgba(8, 8, 17, 0.08);
  font-family: var(--font-heading);
  font-size: 72px;
  font-weight: 900;
}

.stage-body {
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.stage-body h3,
.industry-text h3,
.cap-card h3,
.team-card h3,
.value-card h3 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 800;
}

.stage-kicker,
.metric-name {
  color: var(--primary);
  font-size: 10px;
  text-transform: uppercase;
}

.stage-body h3 {
  margin-top: 12px;
  font-size: 28px;
}

.stage-body p,
.cap-card p,
.team-card p,
.value-card p {
  color: var(--muted-text);
  font-size: 13px;
  line-height: 1.75;
}

.stage-specs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 18px;
  padding: 0;
  margin: 26px 0;
  list-style: none;
}

.stage-specs li {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--muted-text);
  font-size: 11px;
}

.stage-specs li::before {
  content: "";
  width: 5px;
  height: 5px;
  flex: 0 0 5px;
  border-radius: 999px;
  background: var(--primary);
}

.stage-metric {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--primary);
  font-family: var(--font-heading);
  font-weight: 800;
}

.stage-card:hover .stage-visual img {
  transform: scale(1.04);
  opacity: 0.82;
}

.vault {
  position: relative;
  overflow: hidden;
}

.vault-bg {
  position: absolute;
  inset: 0;
}

.vault-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.1;
}

.vault-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(244, 244, 247, 0.91);
}

.vault-content {
  position: relative;
  z-index: 1;
}

.tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-bottom: 52px;
  border-bottom: 1px solid var(--border);
}

.tab-list button {
  min-height: 52px;
  padding: 14px 20px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--muted-text);
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  cursor: pointer;
}

.tab-list button.is-active {
  border-color: var(--primary);
  color: var(--foreground);
}

.industry-panel {
  display: grid;
  gap: 48px;
}

.industry-text h3 {
  font-size: 32px;
}

.industry-text p {
  max-width: 720px;
  color: var(--muted-text);
  font-size: 14px;
  line-height: 1.8;
}

.case-list {
  margin-top: 34px;
}

.case-list h4 {
  color: var(--muted-text);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
}

.case-row {
  display: grid;
  grid-template-columns: 34px 1fr auto;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
  color: var(--foreground);
  font-size: 13px;
}

.case-row span:first-child {
  color: rgba(132, 133, 143, 0.7);
  font-size: 10px;
}

.case-row i {
  height: 1px;
  background: rgba(217, 218, 226, 0.85);
}

.metric-stack {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.domain-metric {
  padding-left: 28px;
  border-left: 2px solid rgba(0, 87, 255, 0.22);
}

.domain-metric strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 42px;
  font-weight: 900;
}

.domain-metric span {
  display: block;
  margin-top: 6px;
  color: var(--muted-text);
  font-size: 10px;
  text-transform: uppercase;
}

.split-heading {
  display: grid;
  gap: 34px;
  margin-bottom: 64px;
}

.split-heading > p {
  max-width: 520px;
  margin: 0;
  color: var(--muted-text);
  font-size: 14px;
  line-height: 1.8;
}

.capability-grid,
.team-grid,
.values-grid {
  display: grid;
  gap: 1px;
  background: var(--border);
}

.cap-card,
.team-card,
.value-card {
  min-width: 0;
  padding: 34px 28px;
  background: var(--background);
  transition: background 180ms ease;
}

.cap-card:hover,
.team-card:hover {
  background: rgba(233, 233, 239, 0.48);
}

.cap-icon {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 26px;
  border: 1px solid var(--border);
}

.cap-icon svg {
  width: 18px;
  height: 18px;
  color: var(--muted-text);
}

.cap-card h3 {
  font-size: 19px;
}

.consult-grid {
  display: grid;
  gap: 48px;
}

.consult-form {
  border: 1px solid rgba(217, 218, 226, 0.85);
  background: rgba(244, 244, 247, 0.68);
}

.terminal-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: rgba(233, 233, 239, 0.55);
  color: var(--muted-text);
  font-size: 10px;
  text-transform: uppercase;
}

.terminal-bar span:first-child {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.terminal-bar i {
  width: 8px;
  height: 8px;
  display: inline-block;
  border-radius: 999px;
  background: var(--success);
}

.form-body {
  display: grid;
  gap: 24px;
  padding: 26px;
}

.form-row {
  display: grid;
  gap: 24px;
}

label {
  display: grid;
  gap: 10px;
}

label span {
  color: var(--muted-text);
  font-size: 10px;
  text-transform: uppercase;
}

input,
select,
textarea {
  width: 100%;
  min-height: 48px;
  border: 0;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  background: transparent;
  color: var(--foreground);
  outline: none;
}

textarea {
  min-height: 112px;
  resize: vertical;
  padding-top: 10px;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--primary);
}

.form-alert {
  min-height: 20px;
  margin: 0;
  color: var(--primary);
  font-size: 12px;
}

.submit-button {
  width: 100%;
  border: 0;
  background: var(--foreground);
  color: var(--background);
}

.consult-side {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.complexity-box {
  padding: 28px;
  border: 1px solid var(--border);
}

.complexity-bars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin: 26px 0 16px;
}

.complexity-bars span {
  height: 8px;
  background: var(--border);
  transition: background 180ms ease;
}

.complexity-bars span.is-active {
  background: var(--primary);
}

.complexity-box strong {
  font-family: var(--font-heading);
  font-size: 15px;
}

.next-steps ol {
  display: grid;
  gap: 18px;
  padding: 0;
  margin: 22px 0 0;
  list-style: none;
}

.next-steps li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  color: var(--muted-text);
  font-size: 12px;
  line-height: 1.7;
}

.next-steps span {
  color: rgba(0, 87, 255, 0.65);
  font-size: 10px;
}

.direct-contact {
  padding-top: 28px;
  border-top: 1px solid var(--border);
}

.direct-contact strong,
.direct-contact span {
  display: block;
}

.direct-contact strong {
  margin-top: 18px;
  font-size: 14px;
}

.direct-contact span {
  margin-top: 8px;
  color: var(--muted-text);
  font-size: 12px;
}

.team-hero {
  padding: 144px 0 90px;
}

.team-section {
  padding: 36px 0 72px;
}

.team-card h3 {
  font-size: 22px;
}

.team-role {
  margin: 12px 0 24px;
  color: var(--primary);
  font-size: 11px;
  text-transform: uppercase;
  line-height: 1.8;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.tag-list span {
  border: 1px solid var(--border);
  padding: 7px 10px;
  color: var(--muted-text);
  font-size: 10px;
}

.value-card h3 {
  font-size: 19px;
  margin-top: 10px;
}

.value-index {
  color: var(--primary);
  font-size: 10px;
}

.team-cta {
  padding: 80px 0;
}

.cta-row {
  display: grid;
  gap: 28px;
}

.team-cta h2 {
  font-size: 32px;
}

.team-cta p {
  margin: 14px 0 0;
  color: var(--muted-text);
  font-size: 14px;
}

.site-footer {
  background: var(--footer);
  color: var(--footer-text);
}

.footer-grid {
  display: grid;
  gap: 44px;
  padding-top: 72px;
  padding-bottom: 56px;
}

.brand.light .brand-mark {
  background: var(--primary);
}

.footer-brand p {
  max-width: 430px;
  color: rgba(244, 244, 247, 0.55);
  font-size: 12px;
  line-height: 1.8;
  margin: 26px 0;
}

.footer-status {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(244, 244, 247, 0.42);
  font-size: 10px;
  text-transform: uppercase;
}

.site-footer h3 {
  margin: 0 0 22px;
  color: rgba(244, 244, 247, 0.36);
  font-size: 10px;
  text-transform: uppercase;
}

.site-footer a:not(.brand) {
  display: block;
  margin-top: 12px;
  color: rgba(244, 244, 247, 0.58);
  font-size: 12px;
  transition: color 180ms ease;
}

.site-footer a:not(.brand):hover {
  color: var(--footer-text);
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding-top: 24px;
  padding-bottom: 24px;
  border-top: 1px solid rgba(244, 244, 247, 0.1);
  color: rgba(244, 244, 247, 0.35);
  font-size: 10px;
  text-transform: uppercase;
}

.footer-bottom nav {
  display: flex;
  gap: 28px;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms ease, transform 600ms ease;
}

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

@media (min-width: 720px) {
  .shell {
    padding: 0 48px;
  }

  .hero-title {
    font-size: 76px;
  }

  .metrics-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .section {
    padding: 128px 0;
  }

  .section-heading h2 {
    font-size: 58px;
  }

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

  .stage-body {
    padding: 48px;
  }

  .industry-panel {
    grid-template-columns: 1fr 1fr;
    gap: 80px;
  }

  .split-heading {
    grid-template-columns: 1fr auto;
    align-items: end;
  }

  .capability-grid,
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .form-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .form-body {
    padding: 38px;
  }

  .team-hero {
    padding: 176px 0 116px;
  }

  .cta-row {
    grid-template-columns: 1fr auto;
    align-items: center;
  }

  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }

  .footer-bottom {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (min-width: 980px) {
  .desktop-nav,
  .header-actions {
    display: flex;
  }

  .menu-button {
    display: none;
  }

  .mobile-nav {
    display: none !important;
  }

  .hero-title {
    font-size: 96px;
  }

  .hero-annotation {
    top: 122px;
    right: 64px;
  }

  .capability-grid,
  .team-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .values-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .consult-grid {
    grid-template-columns: 3fr 2fr;
    gap: 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}