* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: linear-gradient(180deg, #17181d 0%, #0e1014 100%);
  color: #f5f7fb;
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(100%, 440px);
  padding: 32px 24px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
  text-align: center;
  backdrop-filter: blur(12px);
}

.eyebrow {
  margin: 0 0 12px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: #7fd0ff;
}

.title {
  margin: 0;
  font-size: 28px;
  line-height: 1.2;
}

.description {
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.6;
  color: rgba(245, 247, 251, 0.84);
}

.actions {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 16px;
  border-radius: 12px;
  text-decoration: none;
  font-size: 15px;
  font-weight: 700;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

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

.button-primary {
  background: #4c8dff;
  color: #ffffff;
}

.button-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: #f5f7fb;
}

.hint {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(245, 247, 251, 0.64);
}

@media (max-width: 480px) {
  .card {
    padding: 28px 20px;
  }

  .title {
    font-size: 24px;
  }
}