/* Reset and basic styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f9f9f9;
}

header {
  /*background: #4caf50;*/
  background: #4caf50;
  color: #fff;
  padding: 2rem 0;
  text-align: center;
}

header h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

header p {
  font-size: 1.2rem;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

main {
  padding: 2rem;
  text-align: center;
}

.intro h2 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  color: #4caf50;
}

.intro ol {
  list-style: decimal inside;
  margin: 1rem 0;
  font-size: 1.1rem;
  color: #555;
  text-align: left;
  display: inline-block;
}

.cta {
  margin-top: 2rem;
}

.cta button {
  background: #4caf50;
  color: white;
  border: none;
  padding: 1rem 2rem;
  font-size: 1.2rem;
  cursor: pointer;
  border-radius: 5px;
  transition: background 0.3s ease;
}

.cta button:hover {
  background: #45a049;
}

footer {
  background: #4caf50;
  color: #fff;
  text-align: center;
  padding: 1rem 0;
  margin-top: 2rem;
}
.white-link {
  color: #fff;       /* 白色文本 */
  text-decoration: none;  /* 去掉下划线，可选 */
}

.white-link:hover {
  color: #eee;       /* 悬停时可稍作变化 */
  text-decoration: underline; /* 或者加回来下划线 */
}