:root {
  color: #f7fbff;
  background: #061a2d;
  font-family: system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at 50% 20%, rgba(23, 190, 194, .18), transparent 36%),
    #061a2d;
}

.card {
  width: min(100%, 390px);
  padding: 38px 28px 30px;
  text-align: center;
  border: 1px solid rgba(132, 219, 224, .2);
  border-radius: 24px;
  background: rgba(9, 41, 61, .9);
  box-shadow: 0 24px 70px rgba(0, 0, 0, .28);
}

.app-icon {
  width: 92px;
  height: 92px;
  border-radius: 22px;
  object-fit: cover;
}

h1 {
  margin: 20px 0 4px;
  font-size: 32px;
  letter-spacing: .08em;
}

.subtitle {
  margin: 0 0 28px;
  color: #a8c5d4;
  font-size: 16px;
}

.download {
  display: block;
  width: 100%;
  padding: 15px 18px;
  border-radius: 14px;
  color: #042033;
  background: #35d4d0;
  font-size: 17px;
  font-weight: 700;
  text-decoration: none;
}

.download:focus-visible,
.download:hover {
  background: #65e5df;
}

.version,
.hint {
  margin: 18px 0 0;
  color: #86a8b9;
  font-size: 13px;
}

.hint {
  margin-top: 6px;
}