:root {
  color-scheme: light;
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  color: #172033;
  background: #eef3f8;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  padding: 24px;
}

.test-card {
  width: min(100%, 560px);
  padding: 40px;
  border: 1px solid #d8e1ec;
  border-radius: 20px;
  background: #ffffff;
  box-shadow: 0 20px 60px rgb(23 32 51 / 12%);
}

.eyebrow {
  margin: 0 0 12px;
  color: #2563eb;
  font-size: 14px;
  font-weight: 700;
}

h1 {
  margin: 0;
  font-size: clamp(30px, 6vw, 44px);
}

.description {
  margin: 20px 0 28px;
  color: #526079;
  line-height: 1.8;
}

button {
  border: 0;
  border-radius: 10px;
  padding: 12px 20px;
  color: #ffffff;
  background: #2563eb;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

button:hover {
  background: #1d4ed8;
}

.result {
  margin: 20px 0 0;
  color: #64748b;
}

.result.is-success {
  color: #15803d;
  font-weight: 700;
}