* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #f5f5f5;
  color: #333;
  margin: 0;
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.container {
  max-width: 600px;
  width: 100%;
  text-align: center;
}

.card {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  padding: 48px 40px;
}

h1 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
}

p {
  color: #666;
  font-size: 15px;
  line-height: 1.7;
}