:root {
  color-scheme: dark;
  --bg: #050809;
  --panel: rgba(255, 255, 255, .07);
  --line: rgba(255, 255, 255, .15);
  --text: #f4fbf8;
  --muted: rgba(244, 251, 248, .68);
  --teal: #62f5de;
  --rose: #ff6d86;
  --gold: #f5c96a;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
  background:
    radial-gradient(900px 620px at 18% 20%, rgba(98, 245, 222, .18), transparent 62%),
    radial-gradient(720px 540px at 86% 32%, rgba(255, 109, 134, .16), transparent 64%),
    linear-gradient(135deg, #041010, #0b0b10 50%, #14090c);
  color: var(--text);
}

.site-shell {
  width: min(1180px, calc(100% - 48px));
  min-height: 100vh;
  margin: 0 auto;
  display: grid;
  place-items: center;
  padding: 34px 0;
}

.download-hero {
  position: relative;
  width: 100%;
  min-height: min(720px, calc(100vh - 68px));
  display: grid;
  grid-template-columns: minmax(300px, .9fr) minmax(360px, 1.1fr);
  align-items: center;
  gap: clamp(32px, 6vw, 86px);
  overflow: hidden;
  padding: clamp(34px, 6vw, 78px);
  border: 1px solid var(--line);
  border-radius: 26px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, .1), rgba(255, 255, 255, .03)),
    rgba(3, 7, 8, .72);
  box-shadow: 0 30px 90px rgba(0, 0, 0, .48);
}

.hero-visual {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 420px;
}

.disc-rings {
  position: absolute;
  width: min(430px, 82vw);
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    repeating-radial-gradient(circle, transparent 0 21px, rgba(255, 255, 255, .08) 22px 23px),
    radial-gradient(circle, rgba(98, 245, 222, .2), transparent 62%);
  opacity: .82;
  animation: pulse 5.5s ease-in-out infinite;
}

.brand-logo {
  position: relative;
  width: 156px;
  height: 156px;
  border-radius: 34px;
  box-shadow: 0 22px 70px rgba(98, 245, 222, .22);
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(58px, 10vw, 112px);
  line-height: .96;
  letter-spacing: 0;
}

.subtitle {
  max-width: 580px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 34px;
}

.download-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 24px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--teal), #d9fff5);
  color: #061112;
  font-size: 15px;
  font-weight: 900;
  text-decoration: none;
  box-shadow: 0 14px 36px rgba(98, 245, 222, .28);
}

.download-button:hover {
  transform: translateY(-1px);
}

.web-button {
  background: linear-gradient(135deg, var(--rose), #fff0f3);
}

.android-button {
  background: linear-gradient(135deg, var(--gold), #fff5d5);
}

.version-pill {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, .05);
  font-size: 13px;
  font-weight: 700;
}

.release-meta {
  display: grid;
  gap: 13px;
  margin: 36px 0 0;
}

.release-meta div {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
}

dt {
  color: rgba(255, 255, 255, .48);
  font-size: 12px;
  font-weight: 800;
}

dd {
  min-width: 0;
  margin: 0;
  color: rgba(255, 255, 255, .86);
  font-size: 14px;
  line-height: 1.6;
}

.hash {
  overflow-wrap: anywhere;
  font-family: "Cascadia Mono", Consolas, monospace;
  color: rgba(255, 255, 255, .72);
}

.side-art {
  position: absolute;
  right: clamp(20px, 4vw, 54px);
  bottom: 0;
  width: clamp(86px, 12vw, 150px);
  opacity: .88;
  filter: drop-shadow(0 20px 34px rgba(0, 0, 0, .44));
}

@keyframes pulse {
  0%, 100% {
    transform: scale(.98);
    opacity: .72;
  }
  50% {
    transform: scale(1.04);
    opacity: .95;
  }
}

@media (max-width: 780px) {
  .site-shell {
    width: min(100% - 28px, 560px);
    align-items: start;
  }

  .download-hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding: 30px 22px 86px;
    border-radius: 22px;
  }

  .hero-visual {
    min-height: 260px;
  }

  .brand-logo {
    width: 120px;
    height: 120px;
    border-radius: 28px;
  }

  .subtitle {
    font-size: 16px;
  }

  .download-button {
    width: 100%;
  }

  .release-meta div {
    grid-template-columns: 1fr;
    gap: 2px;
  }
}