:root {
  color-scheme: light;
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  color: #182036;
  background: #f7f9ff;
  font-synthesis: none;
}

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  grid-template-rows: 1fr auto;
  background:
    radial-gradient(circle at 10% 5%, rgba(82, 214, 214, .20), transparent 34rem),
    radial-gradient(circle at 92% 18%, rgba(168, 132, 255, .20), transparent 30rem),
    #f7f9ff;
}

.shell {
  width: min(960px, calc(100% - 40px));
  margin: auto;
  padding: 72px 0 48px;
}

.hero { max-width: 780px; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 22px;
  font-weight: 750;
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  color: white;
  background: linear-gradient(135deg, #43d7d2, #8775f5);
  box-shadow: 0 10px 28px rgba(94, 115, 226, .28);
}

.eyebrow {
  margin: 54px 0 14px;
  color: #68738c;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .18em;
}

h1 {
  margin: 0;
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1.13;
  letter-spacing: -.045em;
}

.lead {
  max-width: 680px;
  margin: 28px 0 0;
  color: #677089;
  font-size: 18px;
  line-height: 1.8;
}

.release-card {
  margin-top: 56px;
  padding: 28px 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  border: 1px solid rgba(120, 130, 165, .16);
  border-radius: 28px;
  background: rgba(255, 255, 255, .82);
  box-shadow: 0 24px 70px rgba(46, 55, 95, .10);
  backdrop-filter: blur(16px);
}

.card-label {
  margin: 0 0 7px;
  color: #7d879e;
  font-size: 14px;
}

h2 { margin: 0; font-size: 28px; }

.release-note {
  max-width: 590px;
  margin: 10px 0 0;
  color: #677089;
  line-height: 1.65;
  white-space: pre-line;
}

.download {
  flex: none;
  padding: 14px 24px;
  border-radius: 16px;
  color: white;
  background: #675cf4;
  font-weight: 750;
  text-decoration: none;
  box-shadow: 0 12px 28px rgba(103, 92, 244, .28);
}

.download.disabled {
  color: #949bad;
  background: #eef0f6;
  box-shadow: none;
  cursor: not-allowed;
}

.setup-note {
  margin: 18px 4px 0;
  color: #7d879e;
  font-size: 14px;
}

code { color: #554bd7; }

footer {
  padding: 24px;
  color: #929aab;
  text-align: center;
  font-size: 13px;
}

@media (max-width: 620px) {
  .shell { width: min(100% - 28px, 960px); padding-top: 38px; }
  .eyebrow { margin-top: 40px; }
  .lead { font-size: 16px; }
  .release-card { align-items: stretch; flex-direction: column; padding: 24px; }
  .download { text-align: center; }
}