:root {
  --bg: #060606;
  --panel: rgba(255, 255, 255, 0.05);
  --panel-strong: rgba(255, 255, 255, 0.09);
  --line: rgba(255, 255, 255, 0.12);
  --text: #f5f3ef;
  --muted: rgba(245, 243, 239, 0.72);
  --dim: rgba(245, 243, 239, 0.48);
  --accent: #8fd3ff;
  --accent-soft: rgba(143, 211, 255, 0.2);
  --silver: #d8d3ca;
  --glow: 0 0 120px rgba(143, 211, 255, 0.16);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --container: min(1180px, calc(100vw - 40px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(143, 211, 255, 0.12), transparent 24%),
    radial-gradient(circle at 15% 20%, rgba(255, 255, 255, 0.08), transparent 18%),
    linear-gradient(180deg, #0e0f11 0%, #060606 42%, #090909 100%);
  font-family: "Noto Sans SC", sans-serif;
  line-height: 1.78;
  letter-spacing: 0.01em;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 160px 160px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5), transparent 90%);
  opacity: 0.45;
}

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

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

.page-shell {
  position: relative;
  overflow: hidden;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(6, 6, 6, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 84px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.brand-mark {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.brand-title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.brand-subtitle {
  color: var(--dim);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
}

.nav a {
  padding: 10px 16px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.92rem;
}

.nav a.active,
.nav a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
}

.lang-switch {
  display: inline-flex;
  gap: 6px;
  padding: 4px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
}

.lang-toggle {
  appearance: none;
  border: 0;
  padding: 10px 14px;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
}

.lang-toggle.is-active {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text);
}

.hero {
  padding: 80px 0 42px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  gap: 36px;
  align-items: stretch;
}

.hero-copy,
.hero-visual,
.feature-card,
.section-panel,
.contact-strip,
.work-card,
.quote-card,
.metric-card,
.story-card {
  position: relative;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.hero-copy,
.hero-visual {
  border-radius: var(--radius-xl);
}

.hero-copy {
  padding: 44px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--silver);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.74rem;
}

.eyebrow::before {
  content: "";
  width: 38px;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

h1,
h2,
h3,
.display {
  margin: 0;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 {
  margin-top: 24px;
  font-size: clamp(3.4rem, 7vw, 6.6rem);
  line-height: 1.02;
  max-width: 11ch;
}

h2 {
  line-height: 1.08;
}

h3 {
  line-height: 1.18;
}

h1 .lang-en,
h2 .lang-en,
h3 .lang-en,
.display .lang-en,
.poster-title .lang-en,
.quote-card blockquote.lang-en {
  font-family: "Syne", "Space Grotesk", sans-serif;
  letter-spacing: -0.04em;
}

h1 .lang-zh,
h2 .lang-zh,
h3 .lang-zh,
.display .lang-zh,
.poster-title .lang-zh,
.quote-card blockquote.lang-zh {
  letter-spacing: -0.015em;
}

.hero-copy p {
  margin: 26px 0 0;
  max-width: 56ch;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.92;
}

.hero-actions,
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.button,
.text-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.button.primary {
  color: #071118;
  background: linear-gradient(135deg, #ebf7ff, #8fd3ff);
  box-shadow: var(--glow);
}

.button.secondary {
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 40px;
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--muted);
  font-size: 0.94rem;
}

.hero-visual {
  overflow: hidden;
  padding: 32px;
  min-height: 100%;
  background:
    radial-gradient(circle at top right, rgba(143, 211, 255, 0.28), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02));
}

.visual-frame {
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 22px;
  height: 100%;
  padding: 28px;
  border-radius: 26px;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.16), rgba(0, 0, 0, 0.36)),
    linear-gradient(145deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
  outline: 1px solid rgba(255, 255, 255, 0.08);
}

.visual-topline,
.visual-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  color: var(--dim);
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.visual-poster {
  position: relative;
  overflow: hidden;
  border-radius: 24px;
  min-height: 420px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.1), transparent 36%),
    radial-gradient(circle at 80% 22%, rgba(143, 211, 255, 0.35), transparent 20%),
    radial-gradient(circle at 30% 74%, rgba(255, 255, 255, 0.18), transparent 20%),
    linear-gradient(135deg, #0d1217 10%, #15171d 44%, #090909 100%);
}

.visual-poster::before,
.visual-poster::after {
  content: "";
  position: absolute;
  inset: 0;
}

.visual-poster::before {
  background:
    linear-gradient(130deg, transparent 28%, rgba(255, 255, 255, 0.18) 28%, rgba(255, 255, 255, 0.18) 31%, transparent 31%),
    linear-gradient(130deg, transparent 61%, rgba(143, 211, 255, 0.4) 61%, rgba(143, 211, 255, 0.4) 63%, transparent 63%);
  mix-blend-mode: screen;
  opacity: 0.4;
}

.visual-poster::after {
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.38));
}

.poster-copy {
  position: absolute;
  left: 28px;
  right: 28px;
  bottom: 28px;
  z-index: 1;
}

.poster-index {
  color: var(--accent);
  font-size: 0.9rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.poster-title {
  margin-top: 10px;
  max-width: 9ch;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.04;
}

.poster-note {
  margin-top: 16px;
  color: var(--muted);
  line-height: 1.86;
  max-width: 32ch;
}

main section {
  padding: 30px 0;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(240px, 0.7fr);
  gap: 26px;
  align-items: end;
  margin-bottom: 22px;
}

.section-head h2 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.08;
}

.section-head p {
  margin: 0;
  color: var(--muted);
  line-height: 1.9;
}

.features-grid,
.works-grid,
.metrics-grid,
.story-grid {
  display: grid;
  gap: 18px;
}

.features-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.feature-card,
.metric-card,
.story-card,
.work-card,
.quote-card {
  border-radius: var(--radius-lg);
  padding: 24px;
}

.feature-card {
  min-height: 240px;
}

.card-index {
  color: var(--accent);
  font-size: 0.86rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.feature-card h3,
.work-card h3,
.quote-card h3,
.story-card h3 {
  margin-top: 18px;
  font-size: 1.55rem;
  line-height: 1.2;
}

.feature-card p,
.work-card p,
.story-card p,
.quote-card p,
.metric-card p,
.contact-item p {
  color: var(--muted);
  line-height: 1.9;
  margin: 16px 0 0;
}

.workflow {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
}

.workflow-step {
  padding: 22px 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.workflow-step strong {
  display: block;
  margin-top: 14px;
  font-size: 1.06rem;
  line-height: 1.45;
}

.workflow-step span {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  line-height: 1.76;
}

.section-panel {
  border-radius: var(--radius-xl);
  padding: 28px;
}

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

.work-card {
  overflow: hidden;
}

.work-media {
  position: relative;
  overflow: hidden;
  min-height: 240px;
  margin: -24px -24px 22px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.06)),
    linear-gradient(135deg, #16181d, #0b0d11 60%, #11151a);
}

.work-media::before {
  content: "";
  position: absolute;
  inset: 22px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background:
    radial-gradient(circle at 18% 22%, rgba(143, 211, 255, 0.26), transparent 18%),
    radial-gradient(circle at 78% 62%, rgba(255, 255, 255, 0.12), transparent 22%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.02));
}

.work-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 22%, rgba(4, 5, 8, 0.74));
}

.mosaic-grid {
  position: absolute;
  inset: 34px 28px 30px;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
  z-index: 1;
}

.mosaic-grid span {
  aspect-ratio: 1 / 1;
  border-radius: 10px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.24), rgba(255, 255, 255, 0.04));
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.mosaic-grid--project span:nth-child(3n) {
  background: linear-gradient(145deg, rgba(143, 211, 255, 0.42), rgba(255, 255, 255, 0.08));
}

.mosaic-grid--project span:nth-child(4n) {
  background: linear-gradient(145deg, rgba(255, 209, 163, 0.28), rgba(255, 255, 255, 0.05));
}

.mosaic-grid--secret span {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.02));
  opacity: 0.92;
}

.mosaic-grid--secret span:nth-child(2n) {
  background: linear-gradient(145deg, rgba(143, 211, 255, 0.18), rgba(255, 255, 255, 0.03));
}

.mosaic-grid--secret span:nth-child(5n) {
  opacity: 0.45;
}

.work-media-copy {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 22px;
  z-index: 2;
}

.work-media-kicker {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(4, 8, 12, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(245, 243, 239, 0.84);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.work-media-title {
  margin-top: 14px;
  font-size: 1.18rem;
  line-height: 1.45;
  color: rgba(245, 243, 239, 0.92);
}

.work-media-title .lang-en {
  font-family: "Space Grotesk", sans-serif;
}

.work-badge {
  position: absolute;
  left: 24px;
  top: 24px;
  z-index: 1;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(7, 17, 24, 0.7);
  border: 1px solid rgba(143, 211, 255, 0.24);
  color: var(--accent);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.work-label {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--muted);
  font-size: 0.82rem;
}

.split-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 1.05fr);
  gap: 18px;
}

.quote-card {
  background:
    radial-gradient(circle at 0 0, rgba(143, 211, 255, 0.12), transparent 35%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
}

.quote-card blockquote {
  margin: 22px 0 0;
  font-size: clamp(1.9rem, 3.2vw, 3rem);
  line-height: 1.16;
}

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

.metric-card strong {
  display: block;
  font-size: clamp(2rem, 3vw, 2.8rem);
  letter-spacing: -0.03em;
}

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

.story-card ul {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
}

.story-card li {
  padding: 14px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--muted);
  line-height: 1.82;
}

.contact-strip {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 1.05fr);
  gap: 20px;
  padding: 30px;
  margin-top: 10px;
  border-radius: var(--radius-xl);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.contact-item {
  padding: 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.contact-item span {
  display: inline-block;
  color: var(--dim);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.76rem;
}

.contact-item strong {
  display: block;
  margin-top: 14px;
  font-size: 1.08rem;
  line-height: 1.55;
}

.site-footer {
  padding: 34px 0 50px;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  color: var(--dim);
  font-size: 0.92rem;
}

.footer-links {
  display: inline-flex;
  gap: 18px;
  flex-wrap: wrap;
}

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

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.page-hero {
  padding: 68px 0 24px;
}

.page-hero-card {
  padding: 36px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at top right, rgba(143, 211, 255, 0.18), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
}

.page-hero-card h1 {
  max-width: 13ch;
}

@media (max-width: 1080px) {
  .hero-grid,
  .split-panel,
  .contact-strip,
  .section-head {
    grid-template-columns: 1fr;
  }

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

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

  .story-grid,
  .contact-grid,
  .metrics-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .site-header-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 18px 0;
  }

  .topbar {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
  }

  .nav,
  .lang-switch {
    width: 100%;
    justify-content: space-between;
  }

  .nav a,
  .lang-toggle {
    flex: 1;
    text-align: center;
  }

  .hero-copy,
  .hero-visual,
  .page-hero-card,
  .section-panel,
  .contact-strip {
    padding: 24px;
  }

  .features-grid,
  .works-grid,
  .workflow {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 44px;
  }

  h1 {
    font-size: clamp(2.5rem, 15vw, 4.4rem);
    line-height: 1.08;
  }

  .visual-poster {
    min-height: 320px;
  }
}
.lang-zh {
  font-family: "Noto Sans SC", sans-serif;
  letter-spacing: 0.01em;
}

.lang-en {
  font-family: "Space Grotesk", sans-serif;
  letter-spacing: 0;
}