:root {
  --navy-950: #020817;
  --navy-900: #061431;
  --navy-800: #0a2558;
  --blue-700: #0d4ea6;
  --cyan-500: #12cde5;
  --cyan-300: #75ecf8;
  --ice-100: #eafcff;
  --white: #ffffff;
  --slate-100: #edf4ff;
  --slate-300: #b6c7df;
  --slate-500: #788ca8;
  --ink: #07162f;
  --card: rgba(7, 22, 47, 0.72);
  --border: rgba(117, 236, 248, 0.18);
  --shadow: 0 24px 80px rgba(0, 16, 48, 0.35);
  --radius-lg: 32px;
  --radius-md: 22px;
  --radius-sm: 14px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
  background: var(--navy-950);
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--slate-100);
  background:
    radial-gradient(circle at 12% 5%, rgba(18, 205, 229, 0.14), transparent 28rem),
    radial-gradient(circle at 88% 18%, rgba(13, 78, 166, 0.22), transparent 34rem),
    linear-gradient(180deg, #020817 0%, #061431 42%, #020817 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

body.zh {
  font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
}

::selection {
  color: var(--navy-950);
  background: var(--cyan-300);
}

a {
  color: inherit;
}

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

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 14px;
  color: var(--navy-950);
  background: var(--white);
  border-radius: 10px;
  transform: translateY(-180%);
  transition: transform 180ms ease;
}

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

.scroll-progress {
  position: fixed;
  inset: 0 auto auto 0;
  z-index: 1000;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan-500), var(--cyan-300));
  box-shadow: 0 0 18px rgba(18, 205, 229, 0.75);
}

.container {
  width: min(calc(100% - 40px), var(--container));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(117, 236, 248, 0.11);
  background: rgba(2, 8, 23, 0.78);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.nav-shell {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  white-space: nowrap;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  overflow: hidden;
  border: 1px solid rgba(117, 236, 248, 0.34);
  border-radius: 12px;
  background: var(--white);
  box-shadow: 0 0 28px rgba(18, 205, 229, 0.22);
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand-word {
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a,
.lang-switch {
  padding: 9px 12px;
  color: var(--slate-300);
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 650;
  text-decoration: none;
  transition: color 180ms ease, background 180ms ease;
}

.nav-links a:hover,
.nav-links a.active,
.lang-switch:hover {
  color: var(--white);
  background: rgba(117, 236, 248, 0.09);
}

.lang-switch {
  border: 1px solid rgba(117, 236, 248, 0.2);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  color: var(--white);
  border: 1px solid rgba(117, 236, 248, 0.2);
  border-radius: 12px;
  background: rgba(117, 236, 248, 0.05);
  cursor: pointer;
}

.menu-toggle span,
.menu-toggle::before,
.menu-toggle::after {
  width: 20px;
  height: 2px;
  border-radius: 4px;
  background: currentColor;
  content: "";
  transition: transform 180ms ease, opacity 180ms ease;
}

.menu-toggle {
  flex-direction: column;
  gap: 5px;
}

.menu-toggle[aria-expanded="true"] span {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"]::before {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"]::after {
  transform: translateY(-7px) rotate(-45deg);
}

.hero {
  position: relative;
  min-height: calc(100vh - 76px);
  display: grid;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
}

.hero::before {
  position: absolute;
  inset: 0;
  z-index: -3;
  background-image:
    linear-gradient(rgba(117, 236, 248, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(117, 236, 248, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, black 0%, transparent 88%);
  content: "";
}

#latent-field {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  opacity: 0.5;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(340px, 0.85fr);
  gap: clamp(44px, 7vw, 96px);
  align-items: center;
  padding-block: 92px 110px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 24px;
  color: var(--cyan-300);
  font-size: 0.79rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 34px;
  height: 1px;
  background: currentColor;
  content: "";
}

.hero h1,
.section-heading h2,
.cta-panel h2 {
  margin: 0;
  line-height: 1.02;
  letter-spacing: -0.045em;
}

.hero h1 {
  max-width: 780px;
  font-size: clamp(3rem, 5vw, 4.6rem);
  font-weight: 850;
}

.gradient-text {
  color: transparent;
  background: linear-gradient(110deg, var(--white) 8%, var(--cyan-300) 50%, #55a8ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

.hero-copy {
  max-width: 720px;
  margin: 28px 0 0;
  color: var(--slate-300);
  font-size: clamp(1.08rem, 1.8vw, 1.35rem);
}

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

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 14px;
  font-weight: 780;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease, background 180ms ease;
}

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

.button-primary {
  color: #001322;
  background: linear-gradient(135deg, var(--cyan-300), var(--cyan-500));
  box-shadow: 0 14px 34px rgba(18, 205, 229, 0.2);
}

.button-primary:hover {
  box-shadow: 0 18px 42px rgba(18, 205, 229, 0.32);
}

.button-secondary {
  color: var(--white);
  border-color: rgba(117, 236, 248, 0.24);
  background: rgba(117, 236, 248, 0.06);
}

.button-secondary:hover {
  border-color: rgba(117, 236, 248, 0.5);
  background: rgba(117, 236, 248, 0.1);
}

.hero-proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 760px;
  gap: 12px;
  margin-top: 46px;
}

.proof-item {
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(7, 22, 47, 0.52);
  backdrop-filter: blur(12px);
}

.proof-item strong {
  display: block;
  color: var(--white);
  font-size: 1rem;
}

.proof-item span {
  display: block;
  margin-top: 4px;
  color: var(--slate-500);
  font-size: 0.82rem;
}

.logo-stage {
  position: relative;
  max-width: 500px;
  justify-self: end;
}

.logo-stage::before {
  position: absolute;
  inset: 14% 10%;
  z-index: -1;
  border-radius: 50%;
  background: rgba(18, 205, 229, 0.26);
  filter: blur(60px);
  content: "";
}

.logo-card {
  position: relative;
  padding: 18px;
  overflow: hidden;
  border: 1px solid rgba(117, 236, 248, 0.25);
  border-radius: 34px;
  background: rgba(255, 255, 255, 0.97);
  box-shadow: var(--shadow), 0 0 70px rgba(18, 205, 229, 0.14);
  transform: rotate(1.5deg);
}

.logo-card img {
  border-radius: 22px;
}

.orbit-label {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  color: var(--ice-100);
  border: 1px solid rgba(117, 236, 248, 0.24);
  border-radius: 999px;
  background: rgba(2, 8, 23, 0.86);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.22);
  font-size: 0.78rem;
  font-weight: 760;
  backdrop-filter: blur(12px);
}

.orbit-label::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan-300);
  box-shadow: 0 0 12px currentColor;
  content: "";
}

.orbit-label.one {
  top: 8%;
  left: -10%;
}

.orbit-label.two {
  right: -8%;
  bottom: 25%;
}

.orbit-label.three {
  bottom: -3%;
  left: 14%;
}

main section {
  position: relative;
  padding-block: 112px;
}

.section-kicker {
  margin: 0 0 14px;
  color: var(--cyan-300);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.62fr);
  gap: 48px;
  align-items: end;
  margin-bottom: 54px;
}

.section-heading h2,
.cta-panel h2 {
  max-width: 780px;
  font-size: clamp(2.3rem, 5vw, 4.5rem);
}

.section-heading p {
  margin: 0;
  color: var(--slate-300);
  font-size: 1.05rem;
}

.split-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.card {
  position: relative;
  padding: clamp(24px, 4vw, 38px);
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background:
    linear-gradient(145deg, rgba(18, 205, 229, 0.06), transparent 45%),
    var(--card);
  box-shadow: 0 14px 60px rgba(0, 0, 0, 0.16);
}

.card::after {
  position: absolute;
  top: -80px;
  right: -80px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(18, 205, 229, 0.07);
  filter: blur(15px);
  content: "";
}

.card h3 {
  margin: 0;
  color: var(--white);
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
  letter-spacing: -0.025em;
}

.card p {
  margin: 16px 0 0;
  color: var(--slate-300);
}

.card .card-label {
  display: inline-block;
  margin-bottom: 16px;
  color: var(--cyan-300);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.compare-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.compare-card {
  min-height: 260px;
}

.compare-card.featured {
  border-color: rgba(117, 236, 248, 0.44);
  background:
    linear-gradient(145deg, rgba(18, 205, 229, 0.14), rgba(13, 78, 166, 0.08) 60%),
    rgba(7, 22, 47, 0.85);
}

.formula {
  display: block;
  margin: 18px 0 0;
  padding: 14px 16px;
  overflow-x: auto;
  color: var(--ice-100);
  border: 1px solid rgba(117, 236, 248, 0.14);
  border-radius: 12px;
  background: rgba(0, 8, 24, 0.54);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.86rem;
  white-space: nowrap;
}

.process {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 30px;
}

.process-step {
  position: relative;
  padding: 26px 22px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(7, 22, 47, 0.66);
}

.process-step:not(:last-child)::after {
  position: absolute;
  top: 50%;
  right: -15px;
  width: 15px;
  height: 1px;
  background: rgba(117, 236, 248, 0.4);
  content: "";
}

.step-number {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  margin-bottom: 18px;
  color: var(--navy-950);
  border-radius: 50%;
  background: var(--cyan-300);
  font-size: 0.82rem;
  font-weight: 850;
}

.process-step h3 {
  margin: 0;
  font-size: 1.06rem;
}

.process-step p {
  margin: 10px 0 0;
  color: var(--slate-300);
  font-size: 0.92rem;
}

.statement {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 44px;
  padding: clamp(28px, 6vw, 70px);
  border: 1px solid rgba(117, 236, 248, 0.2);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 8% 15%, rgba(18, 205, 229, 0.13), transparent 22rem),
    linear-gradient(125deg, rgba(13, 78, 166, 0.2), rgba(7, 22, 47, 0.8));
  box-shadow: var(--shadow);
}

.statement-quote {
  margin: 0;
  color: var(--white);
  font-size: clamp(1.7rem, 4vw, 3.1rem);
  font-weight: 820;
  line-height: 1.18;
  letter-spacing: -0.035em;
}

.statement-copy p {
  margin: 0;
  color: var(--slate-300);
  font-size: 1.04rem;
}

.statement-copy p + p {
  margin-top: 18px;
}

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

.publication-card {
  display: flex;
  min-height: 290px;
  flex-direction: column;
  justify-content: space-between;
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.publication-card:hover {
  transform: translateY(-5px);
  border-color: rgba(117, 236, 248, 0.44);
  background:
    linear-gradient(145deg, rgba(18, 205, 229, 0.11), transparent 55%),
    rgba(7, 22, 47, 0.87);
}

.publication-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  color: var(--cyan-300);
  border: 1px solid rgba(117, 236, 248, 0.18);
  border-radius: 999px;
  background: rgba(117, 236, 248, 0.06);
  font-size: 0.72rem;
  font-weight: 760;
}

.publication-card h3 {
  max-width: 520px;
}

.publication-card p {
  max-width: 600px;
}

.publication-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 28px;
  color: var(--cyan-300);
  font-weight: 780;
}

.investor-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 24px;
}

.thesis-list {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.thesis-item {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px 0;
  border-top: 1px solid rgba(117, 236, 248, 0.13);
}

.thesis-item:first-child {
  border-top: 0;
}

.thesis-icon {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: var(--navy-950);
  border-radius: 10px;
  background: var(--cyan-300);
  font-weight: 900;
}

.thesis-item h3 {
  margin: 0;
  font-size: 1rem;
}

.thesis-item p {
  margin: 4px 0 0;
  font-size: 0.92rem;
}

.contact-card {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  justify-content: space-between;
  background:
    linear-gradient(150deg, rgba(18, 205, 229, 0.15), rgba(13, 78, 166, 0.12)),
    rgba(7, 22, 47, 0.8);
}

.contact-card .contact-person {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 28px;
}

.avatar {
  display: grid;
  width: 50px;
  height: 50px;
  place-items: center;
  color: var(--navy-950);
  border-radius: 16px;
  background: linear-gradient(135deg, var(--cyan-300), #55a8ff);
  font-weight: 900;
}

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

.contact-person span {
  color: var(--slate-500);
  font-size: 0.88rem;
}

.contact-actions {
  display: grid;
  gap: 12px;
  margin-top: 34px;
}

.contact-actions .button {
  justify-content: space-between;
}

.cta-panel {
  position: relative;
  padding: clamp(34px, 7vw, 78px);
  overflow: hidden;
  border: 1px solid rgba(117, 236, 248, 0.3);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(115deg, rgba(18, 205, 229, 0.18), rgba(13, 78, 166, 0.23)),
    rgba(7, 22, 47, 0.92);
  box-shadow: var(--shadow);
}

.cta-panel::before {
  position: absolute;
  top: -130px;
  right: -90px;
  width: 360px;
  height: 360px;
  border: 1px solid rgba(117, 236, 248, 0.18);
  border-radius: 50%;
  box-shadow:
    0 0 0 40px rgba(117, 236, 248, 0.035),
    0 0 0 90px rgba(117, 236, 248, 0.02);
  content: "";
}

.cta-panel p {
  max-width: 720px;
  margin: 22px 0 0;
  color: var(--slate-300);
  font-size: 1.06rem;
}

.site-footer {
  padding: 42px 0 54px;
  border-top: 1px solid rgba(117, 236, 248, 0.11);
}

.footer-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.footer-copy {
  color: var(--slate-500);
  font-size: 0.88rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-links a {
  color: var(--slate-300);
  font-size: 0.88rem;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--cyan-300);
}

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

.reveal.will-reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms ease;
}

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

@media (max-width: 1040px) {
  .nav-links {
    position: fixed;
    top: 76px;
    right: 20px;
    left: 20px;
    display: none;
    padding: 14px;
    border: 1px solid rgba(117, 236, 248, 0.18);
    border-radius: 18px;
    background: rgba(2, 8, 23, 0.96);
    box-shadow: var(--shadow);
  }

  .nav-links.open {
    display: grid;
  }

  .menu-toggle {
    display: flex;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    padding-top: 72px;
  }

  .logo-stage {
    width: min(100%, 540px);
    justify-self: center;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 20px;
  }

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

  .process-step:nth-child(2)::after {
    display: none;
  }

  .statement,
  .investor-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(calc(100% - 28px), var(--container));
  }

  .brand-word {
    font-size: 0.94rem;
  }

  .hero {
    min-height: auto;
  }

  .hero-grid {
    gap: 56px;
    padding-block: 64px 80px;
  }

  .hero h1 {
    font-size: clamp(2.65rem, 12vw, 3.8rem);
  }

  .hero-proof,
  .split-grid,
  .compare-grid,
  .publications-grid {
    grid-template-columns: 1fr;
  }

  .hero-proof {
    max-width: none;
  }

  .orbit-label {
    display: none;
  }

  main section {
    padding-block: 82px;
  }

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

  .process-step::after {
    display: none;
  }

  .statement {
    gap: 28px;
  }

  .footer-grid {
    align-items: flex-start;
    flex-direction: column;
  }
}

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

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

  #latent-field {
    display: none;
  }

  .reveal,
  .reveal.will-reveal {
    opacity: 1;
    transform: none;
  }
}