:root {
  --bg: #060807;
  --bg-soft: #0b0e0d;
  --surface: #101412;
  --surface-raised: #151a17;
  --text: #f2efe6;
  --text-soft: #b8bbb4;
  --text-muted: #7e847d;
  --copper: #c77c3e;
  --copper-bright: #f0a75f;
  --cyan: #69f5d4;
  --line: rgba(242, 239, 230, 0.14);
  --line-strong: rgba(242, 239, 230, 0.26);
  --header-height: 82px;
  --shell: min(1400px, calc(100vw - 80px));
  --radius-sm: 4px;
  --radius-md: 12px;
  --radius-lg: 24px;
  --z-base: 0;
  --z-media: 10;
  --z-content: 20;
  --z-header: 40;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --font-sans: Inter, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  color: var(--text);
  background:
    radial-gradient(circle at 88% 12%, rgba(105, 245, 212, 0.035), transparent 28rem),
    var(--bg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  opacity: 0.14;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.28'/%3E%3C/svg%3E");
}

img,
svg,
video,
canvas {
  display: block;
  max-width: 100%;
}

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

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  text-wrap: balance;
}

::selection {
  color: #060807;
  background: var(--cyan);
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

.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;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 12px 18px;
  color: var(--bg);
  background: var(--cyan);
  transform: translateY(-160%);
  transition: transform 180ms var(--ease);
}

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

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  display: grid;
  grid-template-columns: minmax(210px, 1fr) auto minmax(210px, 1fr);
  align-items: center;
  min-height: var(--header-height);
  padding: 14px 40px;
  border-bottom: 1px solid transparent;
  transition: background-color 240ms ease, border-color 240ms ease, backdrop-filter 240ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  border-color: var(--line);
  background: rgba(6, 8, 7, 0.88);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  width: max-content;
  min-height: 48px;
  gap: 11px;
}

.brand--image {
  gap: 0;
}

.brand__mark {
  width: 40px;
  height: 40px;
  overflow: visible;
  color: var(--copper-bright);
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.brand__logo {
  display: block;
  width: 112px;
  height: auto;
  max-width: min(112px, 38vw);
  object-fit: contain;
}

.brand__type {
  display: grid;
  line-height: 1;
  letter-spacing: 0.08em;
}

.brand__type strong {
  font-size: 14px;
  font-weight: 700;
}

.brand__type small {
  margin-top: 4px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.18em;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
}

.site-nav a,
.language-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--text-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 180ms ease;
}

.mobile-language-link {
  display: none !important;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 7px;
  left: 0;
  height: 1px;
  content: "";
  background: var(--copper-bright);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 220ms var(--ease);
}

.site-nav a:hover,
.language-link:hover {
  color: var(--text);
}

.site-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
}

.menu-toggle {
  display: none;
  width: 48px;
  height: 48px;
  padding: 13px;
  cursor: pointer;
  color: var(--text);
  border: 1px solid var(--line);
  background: rgba(6, 8, 7, 0.7);
}

.menu-toggle > span:not(.sr-only) {
  display: block;
  width: 100%;
  height: 1px;
  margin: 6px 0;
  background: currentColor;
  transition: transform 220ms var(--ease);
}

.menu-toggle[aria-expanded="true"] > span:nth-child(2) {
  transform: translateY(3.5px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] > span:nth-child(3) {
  transform: translateY(-3.5px) rotate(-45deg);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 13px 22px;
  gap: 16px;
  cursor: pointer;
  border: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: color 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

.button:hover {
  border-color: var(--text);
}

.button--small {
  min-height: 44px;
  padding: 10px 16px;
  font-size: 10px;
}

.button--large {
  min-height: 62px;
  padding-inline: 30px;
}

.button--copper {
  color: #120b06;
  border-color: var(--copper-bright);
  background: var(--copper-bright);
}

.button--copper:hover {
  color: #080908;
  border-color: var(--cyan);
  background: var(--cyan);
}

.button-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 26px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  gap: 14px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.text-link span {
  color: var(--cyan);
  transition: transform 180ms var(--ease);
}

.text-link:hover span {
  transform: translate(3px, -3px);
}

.eyebrow,
.section-index,
.chapter-index,
.lab-label,
.card-topline {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.journey {
  position: relative;
  height: 500vh;
  min-height: 2600px;
}

.journey__stage {
  position: sticky;
  top: 0;
  height: 100dvh;
  min-height: 680px;
  overflow: hidden;
  background: #030504;
}

.journey__media,
.journey__poster,
.journey__video,
.journey__canvas,
.journey__scrim {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.journey__media {
  z-index: var(--z-media);
}

.journey__poster,
.journey__video {
  object-fit: cover;
  object-position: center;
}

.journey__poster {
  opacity: 1;
  transform: scale(calc(1.02 + var(--journey-progress, 0) * 0.04));
}

.journey__video {
  opacity: 0;
  filter: saturate(0.9) contrast(1.08);
  transition: opacity 500ms ease;
}

.journey.is-video-ready .journey__video {
  opacity: 1;
}

.journey.is-video-ready .journey__poster {
  opacity: 0;
}

.journey__canvas {
  z-index: 2;
  pointer-events: none;
  mix-blend-mode: screen;
  opacity: 0.5;
}

.journey__scrim {
  z-index: 3;
  background:
    linear-gradient(90deg, rgba(3, 5, 4, 0.94) 0%, rgba(3, 5, 4, 0.64) 38%, rgba(3, 5, 4, 0.08) 68%, rgba(3, 5, 4, 0.55) 100%),
    linear-gradient(180deg, rgba(3, 5, 4, 0.44), transparent 27%, transparent 65%, rgba(3, 5, 4, 0.86));
}

.journey__hud {
  position: relative;
  z-index: var(--z-content);
  height: 100%;
}

.journey__intro,
.journey__chapter {
  position: absolute;
  left: 0;
  top: 50%;
  width: min(790px, 65vw);
  transform: translateY(-45%);
}

.journey__intro {
  opacity: calc(1 - min(1, var(--journey-progress, 0) * 7));
  pointer-events: auto;
}

.journey.has-progress .journey__intro {
  pointer-events: none;
}

.journey__intro .eyebrow {
  display: flex;
  gap: 24px;
  margin-bottom: 28px;
}

.journey__intro .eyebrow span:first-child {
  color: var(--copper-bright);
}

.journey h1 {
  max-width: 850px;
  margin-bottom: 30px;
  font-size: clamp(56px, 7.2vw, 124px);
  font-weight: 480;
  line-height: 0.88;
  letter-spacing: -0.067em;
}

[lang="zh-Hans"] .journey h1 {
  line-height: 1.02;
  letter-spacing: -0.05em;
}

.journey h1 em {
  color: var(--copper-bright);
  font-style: normal;
}

.journey__lead {
  max-width: 650px;
  margin-bottom: 34px;
  color: var(--text-soft);
  font-size: clamp(17px, 1.35vw, 21px);
  line-height: 1.55;
}

.journey__chapters {
  position: absolute;
  inset: 0;
}

.journey__chapter {
  max-width: 620px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(calc(-45% + 24px));
  transition: opacity 260ms ease, transform 450ms var(--ease);
}

.journey__chapter.is-active {
  opacity: 1;
  transform: translateY(-45%);
}

.journey__chapter .chapter-index {
  margin-bottom: 22px;
  color: var(--cyan);
}

.journey__chapter h2 {
  margin-bottom: 22px;
  font-size: clamp(48px, 5.2vw, 88px);
  font-weight: 480;
  line-height: 0.96;
  letter-spacing: -0.055em;
}

.journey__chapter > p:last-child {
  max-width: 550px;
  color: var(--text-soft);
  font-size: clamp(17px, 1.4vw, 21px);
}

.journey__progress-wrap {
  position: absolute;
  right: 0;
  bottom: 35px;
  left: 0;
}

.journey__progress-wrap > p {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.journey__progress {
  position: relative;
  height: 1px;
  overflow: visible;
  background: rgba(242, 239, 230, 0.24);
}

.journey__progress span {
  display: block;
  width: calc(var(--journey-progress, 0) * 100%);
  height: 2px;
  background: linear-gradient(90deg, var(--copper-bright), var(--cyan));
  box-shadow: 0 0 16px rgba(105, 245, 212, 0.35);
}

.journey__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 0;
  margin: 12px 0 0;
  list-style: none;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.journey__steps li:nth-child(n + 2) {
  text-align: center;
}

.journey__steps li:last-child {
  text-align: right;
}

.journey__steps li.is-active {
  color: var(--text);
}

.section {
  position: relative;
  padding-block: clamp(110px, 11vw, 190px);
}

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

.manifesto {
  padding-top: clamp(130px, 14vw, 230px);
}

.manifesto__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(360px, 0.8fr);
  align-items: start;
  gap: clamp(60px, 10vw, 170px);
  margin-top: 75px;
}

.manifesto h2,
.section-heading h2,
.studio-team__copy h2,
.contact h2 {
  margin-bottom: 0;
  font-size: clamp(48px, 6.3vw, 108px);
  font-weight: 480;
  line-height: 0.94;
  letter-spacing: -0.06em;
}

[lang="zh-Hans"] .manifesto h2,
[lang="zh-Hans"] .section-heading h2,
[lang="zh-Hans"] .studio-team__copy h2,
[lang="zh-Hans"] .contact h2 {
  line-height: 1.04;
  letter-spacing: -0.045em;
}

.manifesto__grid > div {
  padding-top: 12px;
}

.manifesto__grid p,
.studio-team__copy > p,
.contact__frame > p {
  color: var(--text-soft);
  font-size: 17px;
  line-height: 1.7;
}

.lead-copy {
  color: var(--text) !important;
  font-size: clamp(21px, 2vw, 29px) !important;
  line-height: 1.45 !important;
}

.section-heading {
  display: grid;
  grid-template-columns: 1fr minmax(290px, 0.36fr);
  gap: 56px;
  align-items: end;
  margin-bottom: 86px;
}

.section-heading .section-index {
  grid-column: 1 / -1;
  margin-bottom: 10px;
}

.section-heading > p:last-child,
.section-heading--split > p {
  margin-bottom: 8px;
  color: var(--text-soft);
  font-size: 17px;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.capability-card {
  min-height: 520px;
  padding: clamp(32px, 4vw, 62px);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.008);
  transition: background-color 250ms ease;
}

.capability-card:hover {
  background: rgba(105, 245, 212, 0.025);
}

.card-topline {
  display: flex;
  justify-content: space-between;
  margin-bottom: 90px;
}

.card-topline span:first-child {
  color: var(--copper-bright);
}

.capability-card svg {
  width: 110px;
  height: auto;
  margin-bottom: 56px;
  overflow: visible;
  fill: none;
  stroke: var(--cyan);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.capability-card h3,
.case-study h3,
.delivery-step h3 {
  margin-bottom: 18px;
  font-size: clamp(27px, 2.4vw, 40px);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.035em;
}

.capability-card > p,
.case-study__copy > p,
.delivery-step > div > p:last-child {
  max-width: 530px;
  margin-bottom: 0;
  color: var(--text-soft);
  font-size: 16px;
}

.delivery {
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-soft);
}

.section-heading--split {
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.42fr);
}

.section-heading--split .section-index {
  grid-column: auto;
}

.delivery-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 0;
  margin: 0;
  list-style: none;
  border-top: 1px solid var(--line-strong);
}

.delivery-track::before {
  position: absolute;
  top: -2px;
  right: 0;
  left: 0;
  height: 3px;
  content: "";
  background: linear-gradient(90deg, var(--copper), var(--cyan));
  transform: scaleX(var(--delivery-progress, 0));
  transform-origin: left;
}

.delivery-step {
  min-height: 430px;
  padding: 36px clamp(22px, 2.8vw, 44px) 44px;
  border-right: 1px solid var(--line);
}

.delivery-step:first-child {
  border-left: 1px solid var(--line);
}

.delivery-step__number {
  display: block;
  margin-bottom: 130px;
  color: var(--copper-bright);
  font-family: var(--font-mono);
  font-size: 11px;
}

.delivery-step .eyebrow {
  margin-bottom: 12px;
  color: var(--cyan);
}

.signal-journey {
  position: relative;
  height: 260svh;
  min-height: 1800px;
  border-bottom: 1px solid var(--line);
  background: #080b09;
}

.signal-journey__stage {
  position: sticky;
  top: var(--header-height);
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(430px, 0.75fr);
  height: calc(100svh - var(--header-height));
  min-height: 600px;
  overflow: hidden;
  border-inline: 1px solid var(--line);
  background: var(--surface);
}

.signal-journey__visual {
  position: relative;
  min-width: 0;
  overflow: hidden;
  border-right: 1px solid var(--line);
  background:
    radial-gradient(circle at 42% 55%, rgba(199, 124, 62, 0.09), transparent 36%),
    #050706;
}

.signal-journey__visual::after {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(90deg, transparent 64%, rgba(5, 7, 6, 0.64)),
    linear-gradient(180deg, rgba(5, 7, 6, 0.24), transparent 20%, transparent 78%, rgba(5, 7, 6, 0.56));
}

.signal-journey__visual canvas,
.signal-journey__fallback {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.signal-journey__fallback {
  color: rgba(240, 167, 95, 0.24);
  stroke-width: 1.2;
  transition: opacity 240ms ease;
}

.signal-journey__fallback-signal {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 3;
  filter: drop-shadow(0 0 12px rgba(105, 245, 212, 0.6));
}

.signal-journey__visual canvas {
  z-index: 1;
  max-width: none;
  opacity: 0;
  transition: opacity 240ms ease;
}

.signal-journey.has-canvas .signal-journey__visual canvas {
  opacity: 1;
}

.signal-journey.has-canvas .signal-journey__fallback {
  opacity: 0;
}

.signal-journey__telemetry {
  position: absolute;
  right: clamp(20px, 3vw, 42px);
  bottom: clamp(20px, 3vw, 36px);
  left: clamp(20px, 3vw, 42px);
  z-index: 3;
  display: flex;
  justify-content: space-between;
  margin: 0;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.signal-journey__copy {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-width: 0;
  gap: clamp(18px, 2.4vh, 34px);
  padding: clamp(28px, 3vw, 44px);
  background:
    linear-gradient(rgba(242, 239, 230, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(242, 239, 230, 0.035) 1px, transparent 1px),
    var(--surface);
  background-size: 44px 44px;
}

.signal-journey__copy .section-index {
  margin-bottom: 22px;
  color: var(--copper-bright);
}

.signal-journey__copy h2 {
  margin-bottom: 22px;
  font-size: clamp(40px, 4vw, 64px);
  font-weight: 480;
  line-height: 0.97;
  letter-spacing: -0.052em;
}

[lang="zh-Hans"] .signal-journey__copy h2 {
  line-height: 1.08;
}

.signal-journey__copy > div > p:last-child {
  max-width: 540px;
  margin: 0;
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.65;
}

.signal-journey__steps {
  align-self: center;
  padding: 0;
  margin: 0;
  list-style: none;
  border-bottom: 1px solid var(--line);
}

.signal-journey__steps li {
  position: relative;
  display: grid;
  min-height: 72px;
  align-content: center;
  gap: 5px;
  padding: 11px 0 11px 20px;
  border-top: 1px solid var(--line);
  color: var(--text-soft);
  transition: border-color 180ms ease, background-color 180ms ease;
}

.signal-journey__steps li::before {
  position: absolute;
  top: -1px;
  bottom: -1px;
  left: 0;
  width: 2px;
  content: "";
  background: var(--cyan);
  opacity: 0;
  transform: scaleY(0.4);
  transition: opacity 180ms ease, transform 240ms var(--ease);
}

.signal-journey__steps li.is-active {
  border-color: rgba(105, 245, 212, 0.42);
  background: linear-gradient(90deg, rgba(105, 245, 212, 0.07), transparent 72%);
}

.signal-journey__steps li.is-active::before {
  opacity: 1;
  transform: scaleY(1);
}

.signal-journey__steps span {
  color: var(--copper-bright);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.signal-journey__steps strong {
  color: var(--text);
  font-size: 13px;
  font-weight: 550;
}

.signal-journey__steps p {
  margin: 0;
  color: var(--text-muted);
  font-size: 11px;
  line-height: 1.45;
}

.signal-journey__copy > .text-link {
  display: none;
  width: max-content;
  color: var(--text-soft);
}

.case-list {
  display: grid;
  gap: 28px;
}

.case-study {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(360px, 0.75fr);
  min-height: 620px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--surface);
}

.case-study--reverse {
  grid-template-columns: minmax(360px, 0.75fr) minmax(0, 1.25fr);
}

.case-study--reverse .case-study__media {
  order: 2;
}

.case-study--reverse .case-study__copy {
  order: 1;
  border-right: 1px solid var(--line);
  border-left: 0;
}

.case-study__media {
  position: relative;
  min-height: 620px;
  overflow: hidden;
  isolation: isolate;
  background-color: #080b09;
  background-image:
    linear-gradient(rgba(160, 176, 166, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(160, 176, 166, 0.08) 1px, transparent 1px);
  background-size: 44px 44px;
}

.case-study__media::after {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  content: "";
  background: linear-gradient(180deg, rgba(4, 7, 6, 0.05), rgba(4, 7, 6, 0.34));
}

.case-study__image {
  display: block;
  object-fit: cover;
}

.case-study__image--primary {
  width: 100%;
  height: 100%;
  min-height: 620px;
}

.case-study__image--secondary {
  position: absolute;
  right: clamp(20px, 4vw, 58px);
  bottom: clamp(20px, 4vw, 58px);
  z-index: 3;
  width: min(38%, 320px);
  height: 48%;
  border: 7px solid #0a0d0b;
  box-shadow: 0 20px 70px rgba(0, 0, 0, 0.48);
}

.case-study--reverse .case-study__image--secondary {
  right: auto;
  left: clamp(20px, 4vw, 58px);
}

.case-study__image--contain {
  object-fit: cover;
  object-position: top;
  background: #e6e1d6;
}

.case-study__image--portrait {
  width: min(34%, 280px);
  height: 64%;
}

.case-study__media-index {
  position: absolute;
  top: clamp(20px, 3vw, 40px);
  left: clamp(20px, 3vw, 40px);
  z-index: 4;
  padding: 9px 12px;
  color: var(--text-primary);
  border: 1px solid rgba(246, 241, 229, 0.34);
  background: rgba(5, 8, 7, 0.72);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  backdrop-filter: blur(12px);
}

.case-study__media--tangxi {
  background: #f4ead4;
}

.case-study__copy {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(34px, 4.2vw, 66px);
  border-left: 1px solid var(--line);
  gap: 34px;
}

.case-study h3 {
  margin-bottom: 12px;
  font-size: clamp(38px, 4.1vw, 66px);
}

.lab-label {
  margin-bottom: 24px;
  color: var(--copper-bright);
}

.case-study__deck {
  margin: 0;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.case-study__copy > p {
  line-height: 1.75;
}

.case-study__facts {
  display: grid;
  margin: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.case-study__facts > div {
  display: grid;
  grid-template-columns: 92px 1fr;
  padding-block: 15px;
  gap: 18px;
}

.case-study__facts > div + div {
  border-top: 1px solid var(--line);
}

.case-study__facts dt {
  color: var(--copper-bright);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.case-study__facts dd {
  margin: 0;
  color: var(--text-soft);
  font-size: 13px;
  line-height: 1.5;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  padding: 0;
  margin: 38px 0 0;
  gap: 8px;
  list-style: none;
}

.tag-list li {
  padding: 7px 10px;
  color: var(--text-muted);
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.studio-team {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #ded8ca;
  color: #101210;
}

.studio-team__grid {
  display: grid;
  grid-template-columns: minmax(330px, 0.8fr) minmax(0, 1.2fr);
  align-items: center;
  gap: clamp(60px, 10vw, 160px);
}

.studio-team__portrait {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: #aaa59a;
}

.studio-team__portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.08);
}

.studio-team__portrait::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(180deg, transparent 62%, rgba(5, 7, 6, 0.8));
}

.studio-team__portrait-meta {
  position: absolute;
  right: 24px;
  bottom: 20px;
  left: 24px;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  color: #f2efe6;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.studio-team__copy .section-index,
.studio-team__copy > p {
  color: #5b5e57;
}

.studio-team__copy .lead-copy {
  margin-top: 48px;
  color: #171a17 !important;
}

.studio-team__copy .text-link {
  margin-top: 14px;
  color: #171a17;
}

.studio-team__copy .text-link span {
  color: #7f451f;
}

.contact {
  text-align: left;
}

.contact__frame {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(520px, 1.1fr);
  align-items: start;
  overflow: hidden;
  gap: clamp(48px, 7vw, 110px);
  padding: clamp(56px, 7vw, 108px) clamp(32px, 6vw, 92px);
  border: 1px solid var(--line-strong);
  background:
    radial-gradient(circle at 8% 110%, rgba(105, 245, 212, 0.1), transparent 43%),
    var(--surface);
}

.contact__frame::before,
.contact__frame::after {
  position: absolute;
  width: 240px;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, var(--copper-bright));
}

.contact__frame::before { top: 64px; left: -60px; transform: rotate(45deg); }
.contact__frame::after { right: -60px; bottom: 64px; transform: rotate(45deg); }

.contact h2 {
  max-width: 720px;
  font-size: clamp(52px, 5.2vw, 88px);
}

.contact__intro {
  position: relative;
  z-index: 1;
}

.contact__intro > p:not(.section-index) {
  max-width: 620px;
  margin: 36px 0 0;
  color: var(--text-soft);
  font-size: 17px;
  line-height: 1.7;
}

.contact__promise {
  display: grid;
  margin-top: 48px;
  border-top: 1px solid var(--line);
}

.contact__promise span {
  display: flex;
  align-items: center;
  min-height: 48px;
  border-bottom: 1px solid var(--line);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.contact-channels {
  display: grid;
  margin-top: 30px;
  border-top: 1px solid var(--line-strong);
}

.contact-channel {
  min-width: 0;
  border-bottom: 1px solid var(--line-strong);
}

a.contact-channel,
.contact-channel > summary {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr) auto;
  align-items: center;
  min-height: 62px;
  gap: 14px;
}

a.contact-channel {
  color: inherit;
  text-decoration: none;
}

.contact-channel > summary {
  cursor: pointer;
  list-style: none;
}

.contact-channel > summary::-webkit-details-marker {
  display: none;
}

.contact-channel__type,
.contact-channel__action {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.contact-channel strong {
  min-width: 0;
  overflow-wrap: anywhere;
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: color 180ms ease;
}

.contact-channel__action {
  color: var(--copper-bright);
  text-align: right;
}

.contact-channel__open {
  display: none;
}

.contact-channel--wechat[open] .contact-channel__closed {
  display: none;
}

.contact-channel--wechat[open] .contact-channel__open {
  display: inline;
}

a.contact-channel:hover strong,
.contact-channel > summary:hover strong {
  color: var(--cyan);
}

.wechat-card {
  display: grid;
  grid-template-columns: 156px minmax(0, 1fr);
  align-items: center;
  gap: 22px;
  padding: 4px 0 24px 102px;
}

.wechat-card img {
  display: block;
  width: 156px;
  height: 156px;
  padding: 7px;
  background: #fff;
}

.wechat-card p {
  margin: 0 0 12px;
  color: var(--text-soft);
  font-size: 12px;
  line-height: 1.6;
}

.wechat-card a {
  color: var(--copper-bright);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.contact-form {
  position: relative;
  z-index: 1;
  padding: clamp(24px, 3.2vw, 42px);
  border: 1px solid var(--line-strong);
  background: rgba(6, 8, 7, 0.76);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.22);
}

.contact-form::before {
  position: absolute;
  top: -1px;
  left: -1px;
  width: 96px;
  height: 2px;
  content: "";
  background: linear-gradient(90deg, var(--copper-bright), transparent);
}

.contact-form__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 18px;
}

.form-field {
  display: grid;
  align-content: start;
  min-width: 0;
}

.form-field--wide {
  grid-column: 1 / -1;
}

.form-field label {
  margin-bottom: 9px;
  color: var(--text-soft);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

[lang="zh-Hans"] .form-field label {
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.form-field label span[aria-hidden="true"] {
  color: var(--copper-bright);
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  min-height: 52px;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  padding: 13px 14px;
  color: var(--text);
  background: #080b0a;
  font: inherit;
  font-size: 16px;
  line-height: 1.45;
  caret-color: var(--cyan);
  transition: border-color 180ms ease, background-color 180ms ease, box-shadow 180ms ease;
}

.form-field select {
  color-scheme: dark;
  cursor: pointer;
}

.form-field textarea {
  min-height: 174px;
  resize: vertical;
}

.form-field input:hover,
.form-field select:hover,
.form-field textarea:hover {
  border-color: rgba(242, 239, 230, 0.42);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--cyan);
  outline: 0;
  box-shadow: 0 0 0 2px rgba(105, 245, 212, 0.14);
}

.form-field input[aria-invalid="true"],
.form-field select[aria-invalid="true"],
.form-field textarea[aria-invalid="true"] {
  border-color: #ff9c88;
}

.form-field__hint,
.form-field__error {
  display: block;
  margin-top: 7px;
  font-size: 11px;
  line-height: 1.45;
}

.form-field__hint {
  color: var(--text-muted);
}

.form-field__error {
  min-height: 16px;
  color: #ffb7a8;
}

.form-status {
  margin-bottom: 20px;
  border-left: 2px solid var(--copper-bright);
  padding: 10px 14px;
  color: var(--text-soft);
  background: rgba(240, 167, 95, 0.07);
  font-size: 14px;
}

.form-status:empty {
  display: none;
}

.form-status.is-error {
  border-color: #ff9c88;
  color: #ffd0c6;
  background: rgba(255, 156, 136, 0.07);
}

.form-consent {
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 0 12px;
  margin-top: 24px;
}

.form-consent input {
  width: 20px;
  min-height: 20px;
  margin: 2px 0 0;
  padding: 0;
  accent-color: var(--copper-bright);
}

.form-consent label {
  margin: 0;
  color: var(--text-soft);
  font-family: var(--font-sans);
  font-size: 13px;
  letter-spacing: 0;
  line-height: 1.55;
  text-transform: none;
}

[lang="zh-Hans"] .form-consent label {
  font-size: 13px;
  letter-spacing: 0;
}

.form-consent .form-field__error {
  grid-column: 2;
}

.contact-form__footer {
  display: grid;
  grid-template-columns: minmax(220px, auto) minmax(0, 1fr);
  align-items: center;
  gap: 20px;
  margin-top: 26px;
}

.contact-form__footer .button {
  margin: 0;
  border: 0;
  cursor: pointer;
}

.contact-form__footer > p {
  margin: 0;
  color: var(--text-muted);
  font-size: 11px;
  line-height: 1.5;
}

.contact-form__privacy {
  margin: 24px 0 0;
  border-top: 1px solid var(--line);
  padding-top: 18px;
  color: var(--text-muted);
  font-size: 11px;
  line-height: 1.55;
}

.contact-form__privacy a {
  color: var(--text-soft);
  text-decoration: underline;
  text-decoration-color: rgba(240, 167, 95, 0.5);
  text-underline-offset: 3px;
}

.contact-form.is-submitting .button {
  cursor: wait;
  opacity: 0.68;
}

.form-honeypot {
  position: absolute !important;
  left: -10000px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
}

.thank-you-page {
  display: grid;
  min-height: 100svh;
  place-items: center;
  padding: 32px;
}

.thank-you-shell {
  width: min(760px, 100%);
  border: 1px solid var(--line-strong);
  padding: clamp(36px, 7vw, 80px);
  background:
    radial-gradient(circle at 100% 100%, rgba(105, 245, 212, 0.09), transparent 46%),
    var(--surface);
}

.thank-you-shell .brand {
  margin-bottom: clamp(56px, 9vw, 96px);
}

.thank-you-shell .brand__logo {
  width: 180px;
  max-width: min(180px, 60vw);
}

.thank-you-shell h1 {
  margin-bottom: 26px;
  font-size: clamp(48px, 8vw, 84px);
  font-weight: 480;
  line-height: 0.94;
  letter-spacing: -0.055em;
}

[lang="zh-Hans"] .thank-you-shell h1 {
  line-height: 1.06;
}

.thank-you-shell > p {
  max-width: 580px;
  color: var(--text-soft);
  font-size: 17px;
  line-height: 1.7;
}

.lead-reference {
  display: grid;
  gap: 8px;
  margin: 36px 0;
  border-block: 1px solid var(--line);
  padding-block: 18px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.lead-reference code {
  color: var(--cyan);
  font: inherit;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  min-height: 140px;
  gap: 48px;
  border-top: 1px solid var(--line);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.site-footer p {
  margin: 0;
}

.brand--footer .brand__mark {
  color: var(--text-muted);
}

.brand--footer .brand__logo {
  width: 104px;
  max-width: min(104px, 34vw);
}

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}

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

@media (max-width: 1120px) {
  :root {
    --shell: min(100% - 48px, 1040px);
  }

  .site-header {
    grid-template-columns: 1fr auto auto;
    padding-inline: 24px;
  }

  .menu-toggle {
    display: block;
    grid-column: 2;
    grid-row: 1;
  }

  .header-actions {
    grid-column: 3;
    grid-row: 1;
    margin-left: 12px;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 1px);
    right: 0;
    left: 0;
    display: grid;
    gap: 0;
    padding: 14px 24px 24px;
    border-bottom: 1px solid var(--line);
    background: rgba(6, 8, 7, 0.96);
    backdrop-filter: blur(18px);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-12px);
    transition: opacity 180ms ease, transform 260ms var(--ease);
  }

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

  .site-nav a {
    min-height: 52px;
    border-bottom: 1px solid var(--line);
  }

  .journey__intro,
  .journey__chapter {
    width: min(760px, 80vw);
  }

  .journey__scrim {
    background: linear-gradient(90deg, rgba(3, 5, 4, 0.94), rgba(3, 5, 4, 0.5) 60%, rgba(3, 5, 4, 0.35));
  }

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

  .signal-journey__stage {
    grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
  }

  .delivery-step:nth-child(3) {
    border-left: 1px solid var(--line);
  }

  .delivery-step:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

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

  .contact__intro {
    max-width: 760px;
  }

  .contact h2 {
    font-size: clamp(56px, 8vw, 88px);
  }
}

@media (max-width: 780px), (max-height: 680px), (prefers-reduced-motion: reduce) {
  .signal-journey {
    height: auto;
    min-height: 0;
    padding-block: 100px;
  }

  .signal-journey__stage {
    position: relative;
    top: auto;
    grid-template-columns: 1fr;
    height: auto;
    min-height: 0;
    overflow: visible;
  }

  .signal-journey__visual {
    width: 100%;
    aspect-ratio: 4 / 3;
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .signal-journey__copy {
    padding: clamp(30px, 7vw, 54px);
  }

  .signal-journey__telemetry {
    display: none;
  }

  .signal-journey__steps {
    align-self: auto;
  }

  .signal-journey__copy > .text-link {
    display: inline-flex;
  }
}

@media (max-width: 780px) {
  :root {
    --header-height: 72px;
    --shell: calc(100% - 32px);
  }

  .site-header {
    grid-template-columns: 1fr auto;
    padding: 10px 16px;
  }

  .brand__logo {
    width: 96px;
    height: auto;
    max-width: min(96px, 42vw);
  }

  .brand__mark {
    width: 36px;
    height: 36px;
  }

  .menu-toggle {
    grid-column: 2;
  }

  .header-actions {
    display: none;
  }

  .site-nav .mobile-language-link {
    display: inline-flex !important;
    margin-top: 12px;
    color: var(--copper-bright);
  }

  .journey {
    height: 430vh;
    min-height: 2400px;
  }

  .journey__stage {
    min-height: 600px;
  }

  .journey__media {
    height: 100%;
  }

  .journey__poster,
  .journey__video {
    object-position: 60% center;
  }

  .journey__scrim {
    background:
      linear-gradient(180deg, rgba(3, 5, 4, 0.5), rgba(3, 5, 4, 0.2) 30%, rgba(3, 5, 4, 0.82) 72%, rgba(3, 5, 4, 0.96)),
      linear-gradient(90deg, rgba(3, 5, 4, 0.7), transparent);
  }

  .journey__intro,
  .journey__chapter {
    top: auto;
    bottom: 116px;
    width: 100%;
    transform: none;
  }

  .journey__chapter {
    transform: translateY(20px);
  }

  .journey__chapter.is-active {
    transform: translateY(0);
  }

  .journey__intro .eyebrow {
    margin-bottom: 16px;
  }

  .journey__intro .eyebrow span:last-child {
    display: none;
  }

  .journey h1 {
    margin-bottom: 20px;
    font-size: clamp(48px, 15vw, 72px);
  }

  .journey__lead {
    margin-bottom: 22px;
    font-size: 16px;
  }

  .journey__intro .button-row .text-link {
    display: none;
  }

  .journey__chapter h2 {
    margin-bottom: 14px;
    font-size: clamp(42px, 12vw, 64px);
  }

  .journey__chapter > p:last-child {
    font-size: 16px;
  }

  .journey__progress-wrap {
    bottom: 20px;
  }

  .section {
    padding-block: 100px;
  }

  .manifesto__grid,
  .section-heading,
  .section-heading--split,
  .studio-team__grid {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .manifesto__grid {
    margin-top: 46px;
  }

  .manifesto h2,
  .section-heading h2,
  .studio-team__copy h2,
  .contact h2 {
    font-size: clamp(46px, 14vw, 70px);
  }

  .section-heading {
    margin-bottom: 54px;
  }

  .section-heading .section-index {
    grid-column: auto;
  }

  .capability-grid,
  .case-study,
  .case-study--reverse,
  .delivery-track {
    grid-template-columns: 1fr;
  }

  .capability-card {
    min-height: auto;
  }

  .card-topline {
    margin-bottom: 58px;
  }

  .capability-card svg {
    margin-bottom: 44px;
  }

  .delivery-step,
  .delivery-step:nth-child(3) {
    min-height: auto;
    border-top: 1px solid var(--line);
    border-left: 1px solid var(--line);
  }

  .delivery-step__number {
    margin-bottom: 76px;
  }

  .case-study {
    min-height: 0;
  }

  .case-study--reverse .case-study__media,
  .case-study--reverse .case-study__copy {
    order: initial;
  }

  .case-study__media,
  .case-study__image--primary {
    min-height: 430px;
  }

  .case-study__copy,
  .case-study--reverse .case-study__copy {
    border-top: 1px solid var(--line);
    border-right: 0;
    border-left: 0;
  }

  .studio-team__grid {
    gap: 60px;
  }

  .studio-team__portrait {
    width: min(100%, 520px);
  }

  .contact__frame {
    gap: 44px;
    padding: 52px 24px 24px;
  }

  .contact h2 {
    font-size: clamp(46px, 13vw, 68px);
  }

  .contact__intro > p:not(.section-index) {
    margin-top: 28px;
    font-size: 16px;
  }

  .contact__promise {
    margin-top: 36px;
  }

  .contact-form__grid {
    grid-template-columns: 1fr;
  }

  .form-field--wide {
    grid-column: auto;
  }

  .contact-form__footer {
    grid-template-columns: 1fr;
  }

  .contact-form__footer .button {
    width: 100%;
  }

  .site-footer {
    grid-template-columns: 1fr;
    padding-block: 44px;
    gap: 18px;
  }
}

@media (max-width: 430px) {
  .brand__type small {
    display: none;
  }

  .journey__steps {
    font-size: 8px;
  }

  .journey__chapter .chapter-index {
    margin-bottom: 12px;
  }

  .button-row,
  .button {
    width: 100%;
  }

  .capability-card,
  .case-study__copy {
    padding: 28px;
  }

  .case-study__media,
  .case-study__image--primary {
    min-height: 340px;
  }

  .case-study__image--secondary {
    right: 18px;
    bottom: 18px;
    width: 38%;
    height: 46%;
    border-width: 4px;
  }

  .case-study--reverse .case-study__image--secondary {
    right: auto;
    left: 18px;
  }

  .case-study__image--portrait {
    height: 58%;
  }

  .case-study__facts > div {
    grid-template-columns: 1fr;
    gap: 7px;
  }

  .contact__frame {
    padding: 44px 14px 14px;
  }

  .contact-form {
    padding: 22px 16px;
  }

  a.contact-channel,
  .contact-channel > summary {
    grid-template-columns: minmax(0, 1fr) auto;
    min-height: 72px;
    gap: 7px 12px;
    padding-block: 10px;
  }

  .contact-channel strong {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .contact-channel__action {
    grid-column: 2;
    grid-row: 1;
  }

  .wechat-card {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 6px 0 24px;
  }

  .wechat-card img {
    width: min(100%, 220px);
    height: auto;
  }

  .thank-you-page {
    padding: 16px;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .journey {
    height: auto;
    min-height: 0;
  }

  .journey__stage {
    position: relative;
    min-height: 100svh;
  }

  .journey__video,
  .journey__canvas,
  .journey__chapters,
  .journey__progress-wrap {
    display: none;
  }

  .journey__intro {
    opacity: 1;
  }

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