:root {
  color-scheme: light;
  --black: #050505;
  --ink: #111114;
  --paper: #f5f5f7;
  --white: #ffffff;
  --muted: #6e6e73;
  --line: rgba(0, 0, 0, 0.12);
  --line-light: rgba(255, 255, 255, 0.18);
  --blue: #0071e3;
  --cyan: #61d8ff;
  --gold: #b58b34;
  --red: #d6483b;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.24);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
}

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

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

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

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

.site-nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: grid;
  grid-template-columns: 160px 1fr 44px;
  align-items: center;
  height: 48px;
  padding: 0 max(22px, calc((100vw - 1160px) / 2));
  color: rgba(255, 255, 255, 0.86);
  background: rgba(10, 10, 12, 0.62);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: transform 220ms ease, background 220ms ease;
}

.site-nav.is-compact {
  background: rgba(10, 10, 12, 0.82);
}

.site-nav.is-hidden {
  transform: translateY(-100%);
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  width: fit-content;
  font-size: 13px;
  font-weight: 700;
}

.brand-glyph {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 6px;
  background: linear-gradient(145deg, #f7f7f7, #54575d 48%, #090a0c 49%);
  color: #fff;
  font-size: 13px;
}

.nav-links {
  display: flex;
  justify-content: center;
  gap: clamp(18px, 3vw, 36px);
  font-size: 12px;
}

.nav-links a {
  opacity: 0.82;
  transition: opacity 160ms ease;
}

.nav-links a:hover {
  opacity: 1;
}

.nav-toggle {
  display: none;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 16px;
  height: 1px;
  margin: 5px auto;
  background: currentColor;
}

.section-dark {
  background: var(--black);
  color: var(--white);
}

.hero-panel {
  position: relative;
  min-height: 100svh;
  display: grid;
  place-items: center;
  overflow: hidden;
  isolation: isolate;
}

.hero-image {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-scrim {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.64) 0%, rgba(0, 0, 0, 0.15) 42%, rgba(0, 0, 0, 0.86) 100%),
    radial-gradient(circle at 50% 38%, transparent 0 26%, rgba(0, 0, 0, 0.42) 72%);
}

.hero-copy {
  width: min(920px, calc(100% - 40px));
  padding-top: 46px;
  text-align: center;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-copy h1 {
  margin: 0;
  font-size: clamp(64px, 12vw, 168px);
  line-height: 0.92;
  font-weight: 800;
  letter-spacing: 0;
}

.hero-subtitle {
  width: min(740px, 100%);
  margin: 22px auto 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(21px, 3.1vw, 34px);
  line-height: 1.24;
  font-weight: 650;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.button-primary,
.button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 999px;
  padding: 0 22px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
}

.button-primary {
  color: #fff;
  background: var(--blue);
}

.button-secondary {
  color: var(--blue);
  background: rgba(255, 255, 255, 0.92);
}

.button-primary.dark {
  color: #fff;
  background: var(--ink);
}

.button-secondary.dark {
  color: var(--ink);
  border: 1px solid rgba(0, 0, 0, 0.22);
  background: transparent;
}

.announcement {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 18px;
  padding: 18px 22px;
  background: #fff;
  color: var(--ink);
  text-align: center;
  font-size: 14px;
}

.announcement p {
  margin: 0;
}

.announcement a {
  color: var(--blue);
  white-space: nowrap;
}

.feature {
  min-height: 92svh;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: clamp(36px, 7vw, 96px);
  align-items: center;
  padding: clamp(72px, 10vw, 130px) max(22px, calc((100vw - 1180px) / 2));
}

.feature-light {
  background: var(--paper);
}

.feature-copy h2,
.section-heading h2,
.contact-band h2,
.product-tile h2 {
  margin: 0;
  font-size: clamp(38px, 6vw, 78px);
  line-height: 1.02;
  font-weight: 800;
  letter-spacing: 0;
}

.feature-copy p:not(.eyebrow),
.contact-band p,
.product-tile p {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.46;
  font-weight: 520;
}

.feature .hero-actions {
  justify-content: flex-start;
}

.system-stage {
  position: relative;
  min-height: 560px;
  border-radius: 8px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.76), rgba(220, 225, 231, 0.92)),
    linear-gradient(180deg, #e6e8ed, #fafafa);
  box-shadow: var(--shadow);
}

.system-stage::before {
  content: "";
  position: absolute;
  inset: 18% 12%;
  border: 1px solid rgba(0, 0, 0, 0.16);
  transform: perspective(700px) rotateX(58deg) rotateZ(-9deg);
}

.signal-line {
  position: absolute;
  left: 9%;
  right: 9%;
  top: 47%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--blue), var(--red), var(--gold), transparent);
  box-shadow: 0 0 28px rgba(0, 113, 227, 0.45);
}

.stage-module {
  position: absolute;
  display: grid;
  gap: 8px;
  width: min(230px, 42%);
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.76);
  backdrop-filter: blur(18px);
  box-shadow: 0 24px 80px rgba(17, 17, 20, 0.16);
}

.stage-module span {
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
}

.stage-module strong {
  font-size: 26px;
}

.stage-module small {
  color: var(--muted);
  font-size: 14px;
}

.module-a {
  left: 7%;
  top: 15%;
}

.module-b {
  right: 8%;
  top: 34%;
}

.module-c {
  left: 23%;
  bottom: 12%;
}

.proof-strip {
  padding: clamp(80px, 11vw, 150px) max(22px, calc((100vw - 1180px) / 2));
}

.section-heading {
  width: min(860px, 100%);
  margin: 0 auto 40px;
  text-align: center;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.metric-row article {
  min-height: 270px;
  display: grid;
  align-content: end;
  padding: 24px;
  border: 1px solid var(--line-light);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02)),
    #101013;
}

.metric-row span,
.gallery-card span {
  color: var(--cyan);
  font-size: 13px;
  font-weight: 800;
}

.metric-row strong {
  display: block;
  margin-top: 10px;
  font-size: clamp(34px, 4vw, 58px);
  line-height: 1;
}

.metric-row p {
  margin: 14px 0 0;
  color: rgba(255, 255, 255, 0.68);
  line-height: 1.55;
}

.tile-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 12px;
  background: #fff;
}

.product-tile {
  min-height: 640px;
  display: grid;
  align-content: space-between;
  justify-items: center;
  overflow: hidden;
  padding: clamp(34px, 5vw, 62px);
  border-radius: 8px;
  text-align: center;
}

.product-tile > div:first-child {
  width: min(520px, 100%);
}

.tile-black {
  color: #fff;
  background: #050505;
}

.tile-white {
  background: #fafafa;
}

.tile-silver {
  background: linear-gradient(180deg, #f8f8fa, #dddfe4);
}

.tile-blue {
  color: #fff;
  background:
    linear-gradient(145deg, #06121f, #082e4d 42%, #0a0b0d),
    #071b2a;
}

.tile-black p,
.tile-blue p {
  color: rgba(255, 255, 255, 0.74);
}

.tile-visual {
  width: min(440px, 90%);
  aspect-ratio: 1.24;
  margin-top: 44px;
  position: relative;
}

.launch-map span {
  position: absolute;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 34px rgba(97, 216, 255, 0.72);
}

.launch-map span:nth-child(1) {
  width: 34px;
  height: 34px;
  left: 12%;
  top: 52%;
}

.launch-map span:nth-child(2) {
  width: 74px;
  height: 74px;
  left: 35%;
  top: 28%;
  background: var(--cyan);
}

.launch-map span:nth-child(3) {
  width: 116px;
  height: 116px;
  right: 8%;
  top: 43%;
  background: linear-gradient(135deg, #fff, var(--gold));
}

.launch-map span:nth-child(4) {
  left: 0;
  right: 0;
  top: 50%;
  width: auto;
  height: 1px;
  border-radius: 0;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  align-content: center;
}

.trust-grid span {
  aspect-ratio: 1;
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.86), rgba(0, 0, 0, 0.06)),
    #e7e9ee;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
}

.pages span {
  position: absolute;
  inset: 10% 18%;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.18);
  transform: rotate(-9deg);
}

.pages span:nth-child(2) {
  inset: 16% 14%;
  transform: rotate(2deg);
}

.pages span:nth-child(3) {
  inset: 22% 10%;
  transform: rotate(10deg);
  background:
    linear-gradient(180deg, #fff 0 24%, #f1f2f5 24% 28%, #fff 28% 44%, #eef0f4 44% 48%, #fff 48%),
    #fff;
}

.pulse {
  display: grid;
  place-items: center;
}

.pulse span {
  width: min(260px, 80%);
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 50%;
  background:
    radial-gradient(circle, #fff 0 5%, var(--cyan) 6% 9%, transparent 10%),
    repeating-radial-gradient(circle, rgba(97, 216, 255, 0.34) 0 1px, transparent 1px 28px);
  box-shadow: 0 0 70px rgba(97, 216, 255, 0.48);
  animation: breathe 2.8s ease-in-out infinite;
}

.cinema {
  padding: clamp(80px, 10vw, 140px) 0;
  overflow: hidden;
}

.gallery-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(280px, 34vw);
  gap: 12px;
  overflow-x: auto;
  padding: 0 max(22px, calc((100vw - 1180px) / 2)) 22px;
  scroll-snap-type: x mandatory;
}

.gallery-track::-webkit-scrollbar {
  height: 8px;
}

.gallery-track::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.24);
  border-radius: 999px;
}

.gallery-card {
  min-height: 420px;
  display: grid;
  align-content: end;
  scroll-snap-align: center;
  padding: 28px;
  border: 1px solid var(--line-light);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.14)),
    linear-gradient(145deg, #15161a, #050506);
}

.gallery-card strong {
  display: block;
  margin-top: 10px;
  font-size: clamp(30px, 4vw, 54px);
  line-height: 1.04;
}

.gallery-card p {
  margin: 14px 0 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: 18px;
  line-height: 1.55;
}

.contact-band {
  display: grid;
  place-items: center;
  min-height: 76svh;
  padding: 80px 22px;
  background: #fff;
  text-align: center;
}

.contact-band > div {
  width: min(820px, 100%);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  padding: 34px max(22px, calc((100vw - 1180px) / 2));
  background: #f0f0f2;
  color: var(--muted);
  font-size: 13px;
}

.site-footer strong {
  display: block;
  color: var(--ink);
  margin-bottom: 6px;
}

.site-footer p {
  margin: 0;
  max-width: 680px;
  line-height: 1.55;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px 18px;
}

.footer-links a {
  color: var(--blue);
  white-space: nowrap;
}

.reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 700ms ease, transform 700ms ease;
}

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

@keyframes breathe {
  0%,
  100% {
    transform: scale(0.96);
  }
  50% {
    transform: scale(1.04);
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    transition-duration: 1ms !important;
  }
}

@media (max-width: 900px) {
  .site-nav {
    grid-template-columns: 1fr 44px;
    padding: 0 18px;
  }

  .nav-links {
    position: fixed;
    left: 0;
    right: 0;
    top: 48px;
    display: grid;
    gap: 0;
    padding: 14px 18px 24px;
    background: rgba(10, 10, 12, 0.94);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transform: translateY(-120%);
    transition: transform 220ms ease;
  }

  .nav-links a {
    padding: 16px 4px;
    font-size: 18px;
  }

  .site-nav.is-open .nav-links {
    transform: translateY(0);
  }

  .nav-toggle {
    display: block;
    color: currentColor;
  }

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

  .metric-row,
  .tile-grid {
    grid-template-columns: 1fr;
  }

  .product-tile {
    min-height: 560px;
  }

  .gallery-track {
    grid-auto-columns: minmax(280px, 76vw);
  }

  .site-footer {
    display: grid;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 560px) {
  .hero-panel {
    min-height: 92svh;
  }

  .hero-image {
    object-position: 50% 52%;
  }

  .hero-copy {
    align-self: end;
    padding-bottom: 58px;
  }

  .hero-copy h1 {
    font-size: clamp(58px, 18vw, 86px);
  }

  .hero-subtitle {
    font-size: 20px;
  }

  .button-primary,
  .button-secondary {
    width: min(100%, 290px);
  }

  .announcement {
    display: grid;
    text-align: left;
  }

  .feature-copy h2,
  .section-heading h2,
  .contact-band h2,
  .product-tile h2 {
    font-size: 38px;
  }

  .system-stage {
    min-height: 470px;
  }

  .stage-module {
    width: 70%;
  }

  .module-a {
    left: 7%;
    top: 11%;
  }

  .module-b {
    right: 7%;
    top: 36%;
  }

  .module-c {
    left: 12%;
    bottom: 10%;
  }
}