:root {
  --bg: #040814;
  --bg-deep: #071a2f;
  --bg-panel: rgba(8, 20, 40, 0.74);
  --bg-panel-strong: rgba(8, 23, 45, 0.88);
  --line: rgba(111, 211, 255, 0.18);
  --line-strong: rgba(125, 246, 200, 0.24);
  --text: #edf6ff;
  --muted: rgba(237, 246, 255, 0.72);
  --soft: rgba(237, 246, 255, 0.48);
  --primary: #6fd3ff;
  --secondary: #7df6c8;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.38);
  --radius: 28px;
  --radius-small: 18px;
  --max-width: 1220px;
  --font-display: "Segoe UI", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
  --font-body: "Segoe UI", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--font-body);
  background:
    radial-gradient(circle at 50% -6%, rgba(111, 211, 255, 0.18), transparent 30%),
    radial-gradient(circle at 18% 12%, rgba(125, 246, 200, 0.12), transparent 28%),
    radial-gradient(circle at 86% 6%, rgba(111, 211, 255, 0.14), transparent 24%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 52%, #030711 100%);
  overflow-x: hidden;
}

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

button {
  font: inherit;
}

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

.site-bg {
  position: fixed;
  inset: 0;
  z-index: -3;
  overflow: hidden;
  pointer-events: none;
}

.site-bg__nebula,
.site-bg__grid {
  position: absolute;
  inset: 0;
}

.site-bg__nebula--one {
  background:
    radial-gradient(circle at 28% 34%, rgba(111, 211, 255, 0.1), transparent 32%),
    radial-gradient(circle at 76% 12%, rgba(125, 246, 200, 0.08), transparent 22%);
  filter: blur(18px);
  animation: drift 16s ease-in-out infinite alternate;
}

.site-bg__nebula--two {
  background:
    radial-gradient(circle at 52% 78%, rgba(111, 211, 255, 0.1), transparent 30%),
    radial-gradient(circle at 8% 70%, rgba(125, 246, 200, 0.08), transparent 18%);
  filter: blur(22px);
  animation: drift 22s ease-in-out infinite alternate-reverse;
}

.site-bg__grid {
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(111, 211, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(111, 211, 255, 0.06) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.4), transparent 90%);
}

.planet-intro {
  position: fixed;
  inset: 0;
  z-index: 50;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 34%, rgba(29, 83, 137, 0.32), transparent 34%),
    linear-gradient(180deg, rgba(3, 8, 20, 0.88) 0%, rgba(4, 8, 20, 0.6) 45%, rgba(4, 8, 20, 0.92) 100%);
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.planet-intro.is-hidden {
  opacity: 0;
  visibility: hidden;
}

.planet-intro__canvas,
.planet-intro__mobile,
.planet-intro__overlay {
  position: absolute;
  inset: 0;
}

.planet-intro__canvas {
  width: 100%;
  height: 100%;
}

.planet-intro__mobile {
  display: none;
  place-items: center;
  padding: 18vh 8vw 0;
}

.planet-intro__mobile img {
  width: min(82vw, 520px);
  filter: drop-shadow(0 34px 80px rgba(24, 111, 201, 0.4));
}

.planet-intro__mobile-stars {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 24%, rgba(255, 255, 255, 0.8) 0 1px, transparent 1.5px),
    radial-gradient(circle at 80% 18%, rgba(111, 211, 255, 0.9) 0 1px, transparent 1.5px),
    radial-gradient(circle at 64% 46%, rgba(125, 246, 200, 0.7) 0 1px, transparent 1.5px),
    radial-gradient(circle at 36% 68%, rgba(255, 255, 255, 0.72) 0 1px, transparent 1.5px),
    radial-gradient(circle at 78% 72%, rgba(111, 211, 255, 0.6) 0 1px, transparent 1.5px);
  animation: drift 12s ease-in-out infinite alternate;
}

.planet-intro__overlay {
  background:
    linear-gradient(180deg, rgba(4, 8, 20, 0.14) 0%, rgba(4, 8, 20, 0.32) 52%, rgba(4, 8, 20, 0.78) 100%);
  pointer-events: none;
}

.planet-intro__hud,
.planet-intro__copy {
  position: absolute;
  left: 0;
  right: 0;
  width: min(calc(100% - 48px), var(--max-width));
  margin: 0 auto;
}

.planet-intro__hud {
  top: 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  z-index: 4;
}

.skip-intro {
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid rgba(111, 211, 255, 0.28);
  border-radius: 999px;
  color: var(--text);
  background: rgba(8, 20, 40, 0.42);
  backdrop-filter: blur(12px);
  cursor: pointer;
}

.planet-intro__prompt {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  border: 1px solid rgba(111, 211, 255, 0.22);
  border-radius: 999px;
  background: rgba(8, 20, 40, 0.28);
  color: var(--muted);
  font-size: 14px;
  backdrop-filter: blur(16px);
}

.planet-intro__prompt-ring {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--secondary);
  box-shadow: 0 0 18px rgba(125, 246, 200, 0.88);
  animation: pulse 1.8s ease-in-out infinite;
}

.planet-intro__copy {
  bottom: 9vh;
  z-index: 4;
  display: grid;
  justify-items: start;
  gap: 20px;
}

.planet-wordmark {
  max-width: min(70vw, 720px);
  transform-origin: left center;
}

.planet-wordmark__logo {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 14px 42px rgba(13, 60, 112, 0.58));
}

.planet-intro__subtitle {
  max-width: 620px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.72;
}

.planet-intro__actions,
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 18px;
  border: 1px solid rgba(111, 211, 255, 0.22);
  border-radius: 999px;
  color: var(--text);
  background: rgba(8, 20, 40, 0.54);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02), var(--shadow);
}

.button--primary {
  color: #041120;
  border-color: transparent;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
}

.button--ghost {
  background: rgba(8, 20, 40, 0.28);
}

.page-shell {
  position: relative;
  z-index: 10;
  opacity: 0.18;
  transform: translateY(48px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.page-shell.is-ready {
  opacity: 1;
  transform: translateY(0);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(calc(100% - 40px), var(--max-width));
  margin: 0 auto;
  padding: 20px 0 10px;
  background: linear-gradient(180deg, rgba(4, 8, 20, 0.78), rgba(4, 8, 20, 0));
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand__orb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: 0 0 24px rgba(111, 211, 255, 0.62);
}

.brand__text {
  color: rgba(237, 246, 255, 0.94);
}

.topbar__nav {
  display: inline-flex;
  align-items: center;
  gap: 24px;
  color: var(--soft);
  font-size: 14px;
}

.topbar__nav a:hover {
  color: var(--text);
}

.page-main,
.footer {
  width: min(calc(100% - 40px), var(--max-width));
  margin: 0 auto;
}

.page-main {
  padding-bottom: 64px;
}

.panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(11, 25, 45, 0.78) 0%, rgba(7, 18, 34, 0.92) 100%);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.panel::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(120deg, rgba(111, 211, 255, 0.08), transparent 26%, transparent 72%, rgba(125, 246, 200, 0.04)),
    radial-gradient(circle at top left, rgba(111, 211, 255, 0.12), transparent 28%);
}

.panel--hero {
  min-height: calc(100vh - 110px);
  margin-top: 10vh;
  padding: clamp(28px, 4vw, 40px);
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
  gap: 24px;
  align-items: stretch;
}

.hero__content {
  display: grid;
  align-content: start;
  gap: 22px;
}

.section-pill {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 14px;
  border: 1px solid rgba(111, 211, 255, 0.24);
  border-radius: 999px;
  background: rgba(111, 211, 255, 0.08);
  color: rgba(237, 246, 255, 0.92);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 {
  max-width: 850px;
  font-size: clamp(42px, 8vw, 84px);
  line-height: 0.96;
}

h2 {
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1;
}

h3 {
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.12;
}

p {
  margin: 0;
  color: var(--muted);
  line-height: 1.78;
}

.hero__lede {
  max-width: 760px;
  font-size: clamp(18px, 2vw, 22px);
}

.hero__triad {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.hero__triad-card,
.signal-card,
.orbit-card {
  position: relative;
  padding: 22px;
  border: 1px solid rgba(111, 211, 255, 0.16);
  border-radius: var(--radius-small);
  background: rgba(8, 20, 40, 0.36);
  backdrop-filter: blur(12px);
}

.hero__triad-card h2 {
  font-size: 20px;
  margin-bottom: 10px;
}

.hero__signal {
  display: grid;
  align-content: start;
  gap: 16px;
}

.signal-card {
  min-height: 180px;
}

.signal-card__label,
.phase-card__eyebrow,
.join-card__minor {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--primary);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.signal-card strong {
  display: block;
  margin-bottom: 10px;
  color: var(--text);
  font-size: 22px;
  font-weight: 700;
}

.section {
  padding-top: 96px;
}

.section__heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 420px);
  gap: 28px;
  align-items: end;
  margin-bottom: 28px;
}

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

.phase-grid--two {
  grid-template-columns: 1fr;
}

.phase-card {
  padding: 28px;
}

.phase-card--wide {
  padding-bottom: 34px;
}

.phase-card__list {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
  color: var(--muted);
}

.phase-card__list li {
  position: relative;
  padding-left: 18px;
}

.phase-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--secondary);
  box-shadow: 0 0 16px rgba(125, 246, 200, 0.88);
}

.ecosystem-block {
  margin-top: 22px;
  padding: 24px;
  border: 1px solid rgba(111, 211, 255, 0.16);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(7, 18, 34, 0.56), rgba(7, 18, 34, 0.86));
}

.ecosystem-block__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 360px);
  gap: 18px;
  align-items: end;
  margin-bottom: 22px;
}

.tool-constellation {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  position: relative;
}

.tool-constellation::before {
  content: "";
  position: absolute;
  inset: 18px 8% auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(111, 211, 255, 0.26), rgba(125, 246, 200, 0.18), transparent);
}

.tool-node {
  position: relative;
  min-height: 220px;
  display: grid;
  align-content: start;
  gap: 14px;
  padding: 22px;
  border: 1px solid rgba(111, 211, 255, 0.18);
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(11, 27, 48, 0.78), rgba(6, 16, 30, 0.94)),
    radial-gradient(circle at top left, rgba(111, 211, 255, 0.12), transparent 28%);
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.26);
  cursor: pointer;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.tool-node::before,
.tool-node::after {
  content: "";
  position: absolute;
  border-radius: 999px;
}

.tool-node::before {
  top: -11px;
  left: 22px;
  width: 12px;
  height: 12px;
  background: var(--primary);
  box-shadow: 0 0 18px rgba(111, 211, 255, 0.86);
}

.tool-node::after {
  left: 28px;
  right: 28px;
  top: -4px;
  height: 1px;
  background: linear-gradient(90deg, rgba(111, 211, 255, 0.36), rgba(125, 246, 200, 0.2));
}

.tool-node:hover,
.tool-node:focus-visible {
  transform: translateY(-6px);
  border-color: rgba(125, 246, 200, 0.34);
  box-shadow: 0 36px 82px rgba(0, 0, 0, 0.36), 0 0 34px rgba(111, 211, 255, 0.12);
}

.tool-node__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.tool-node__badge,
.tool-node__status {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 12px;
}

.tool-node__badge {
  border: 1px solid rgba(111, 211, 255, 0.18);
  color: rgba(237, 246, 255, 0.76);
  background: rgba(111, 211, 255, 0.08);
}

.tool-node__status {
  color: #041120;
  background: linear-gradient(135deg, rgba(111, 211, 255, 0.92), rgba(125, 246, 200, 0.92));
}

.tool-node__status[data-status="coming_soon"] {
  color: var(--muted);
  background: rgba(237, 246, 255, 0.08);
}

.tool-node__status[data-status="beta"] {
  color: #041120;
  background: linear-gradient(135deg, rgba(111, 211, 255, 0.86), rgba(237, 246, 255, 0.86));
}

.tool-node h4 {
  margin: 0;
  font-size: 26px;
  line-height: 1.12;
}

.tool-node p {
  font-size: 15px;
}

.tool-node__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: auto;
}

.tool-node__cta {
  color: rgba(237, 246, 255, 0.94);
  font-size: 14px;
}

.tool-node__pulse {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--secondary);
  box-shadow: 0 0 16px rgba(125, 246, 200, 0.82);
  animation: pulse 1.6s ease-in-out infinite;
}

.chain {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
  align-items: center;
}

.chain__step {
  min-height: 140px;
  padding: 18px;
  border: 1px solid rgba(111, 211, 255, 0.14);
  border-radius: 24px;
  background: rgba(8, 20, 40, 0.42);
}

.chain__step strong {
  display: block;
  margin-bottom: 10px;
  color: var(--text);
  font-size: 18px;
}

.chain__line {
  height: 1px;
  background: linear-gradient(90deg, rgba(111, 211, 255, 0.32), rgba(125, 246, 200, 0.22));
}

.roadmap-orbits {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid rgba(111, 211, 255, 0.12);
  background: radial-gradient(circle at top center, rgba(111, 211, 255, 0.08), transparent 46%);
}

.roadmap-orbits::before {
  content: "";
  position: absolute;
  inset: 50% 6% auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(111, 211, 255, 0.22), transparent);
}

.orbit-card {
  min-height: 220px;
}

.orbit-card__phase {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  margin-bottom: 16px;
  color: #041120;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: 0 0 26px rgba(111, 211, 255, 0.32);
  font-weight: 700;
}

.section--join {
  padding-bottom: 28px;
}

.join-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 18px;
}

.join-card {
  padding: 28px;
}

.join-card__steps {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.join-card__step {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  align-items: start;
}

.join-card__step span {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  color: #041120;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  font-weight: 700;
}

.join-card--signal {
  display: grid;
  align-content: center;
}

.join-card blockquote {
  margin: 0 0 24px;
  color: var(--text);
  font-size: clamp(28px, 3vw, 38px);
  line-height: 1.22;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 26px 0 52px;
  color: var(--soft);
  font-size: 14px;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal.is-open {
  display: flex;
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(3, 7, 17, 0.7);
  backdrop-filter: blur(8px);
}

.modal__panel {
  position: relative;
  z-index: 1;
  width: min(100%, 460px);
  padding: 28px;
  border: 1px solid rgba(111, 211, 255, 0.18);
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(11, 25, 45, 0.94), rgba(6, 16, 30, 0.98));
  box-shadow: var(--shadow);
}

.modal__panel h2 {
  margin: 12px 0 10px;
  font-size: 34px;
}

.modal__panel p {
  margin-bottom: 24px;
}

body.modal-open {
  overflow: hidden;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
}

@media (max-width: 1080px) {
  .panel--hero,
  .section__heading,
  .ecosystem-block__head,
  .join-grid {
    grid-template-columns: 1fr;
  }

  .hero__triad,
  .tool-constellation,
  .roadmap-orbits {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .chain__line {
    height: 28px;
    width: 1px;
    justify-self: center;
    background: linear-gradient(180deg, rgba(111, 211, 255, 0.32), rgba(125, 246, 200, 0.22));
  }
}

@media (max-width: 820px) {
  .planet-intro__copy {
    bottom: 7vh;
  }

  .planet-intro__prompt {
    width: 100%;
    justify-content: center;
  }

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

  .topbar__nav {
    overflow-x: auto;
    width: 100%;
    padding-bottom: 4px;
  }

  .hero__triad,
  .phase-grid,
  .tool-constellation,
  .roadmap-orbits {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 720px), (hover: none) and (pointer: coarse) {
  .planet-intro__canvas {
    display: none;
  }

  .planet-intro__mobile {
    display: grid;
  }

  .page-shell {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 640px) {
  .planet-intro__hud,
  .planet-intro__copy,
  .page-main,
  .footer,
  .topbar {
    width: min(calc(100% - 28px), var(--max-width));
  }

  .planet-intro__hud {
    top: 18px;
    flex-direction: column;
    align-items: stretch;
  }

  .skip-intro {
    width: 100%;
  }

  h1 {
    font-size: clamp(36px, 12vw, 58px);
  }

  .planet-intro__subtitle,
  .hero__lede {
    font-size: 16px;
  }

  .button,
  .hero__actions,
  .planet-intro__actions {
    width: 100%;
  }

  .planet-intro__actions .button,
  .hero__actions .button,
  .hero__actions--join .button {
    width: 100%;
  }

  .panel--hero,
  .phase-card,
  .join-card,
  .ecosystem-block,
  .modal__panel {
    padding: 22px;
  }
}

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

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

@keyframes pulse {
  0%,
  100% {
    transform: scale(0.95);
    opacity: 0.88;
  }
  50% {
    transform: scale(1.2);
    opacity: 1;
  }
}

@keyframes drift {
  from {
    transform: translate3d(-2%, 0, 0) scale(1);
  }
  to {
    transform: translate3d(2%, 2%, 0) scale(1.06);
  }
}