/* 已有的样式 */
body {
  background-color: #2b2b2b;
  color: #fff;
}

/* 新增样式 */
.container {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 30px;
  max-width: 800px;
  margin: auto;
}

h1 {
  font-size: 32px;
  text-align: center;
  margin-bottom: 20px;
}

p {
  font-size: 12px;
  line-height: 1.5;
  margin-bottom: 10px;
  max-width: 600px;
  text-align: center;
}

textarea {
  width: 100%;
  min-height: 200px;
  padding: 15px;
  margin-bottom: 20px;
  border: 2px solid #4caf50;
  border-radius: 5px;
  resize: vertical;
  font-size: 16px;
  color: wheat;
  background-color: transparent;
}

button {
  background-color: #4caf50;
  border: none;
  color: white;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin: 4px 2px;
  cursor: pointer;
  border-radius: 5px;
  transition: background-color 0.3s;
}

button:hover {
  background-color: #45a049;
}

@media screen and (max-width: 600px) {
  h1 {
    font-size: 28px;
  }

  textarea {
    min-height: 150px;
  }

  button {
    padding: 10px 20px;
    font-size: 14px;
  }
}