html,
body {
  min-height: 100%;
  margin: 0;
  background: #071c31;
  color: #d9e9f8;
  font-family: Arial, "Microsoft YaHei", sans-serif;
}

.fallback {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 24px;
}

.fallback a {
  min-width: 120px;
  padding: 12px 18px;
  border-radius: 8px;
  background: #f1bd21;
  color: #071c31;
  text-align: center;
  text-decoration: none;
  font-weight: 700;
}