/* 全局样式重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* 页面基础样式 */
body {
  font-family: "微软雅黑", sans-serif;
  background-color: #E8F4F8;
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  color: #333;
}

/* 导航栏 */
.navbar {
  margin-bottom: 40px;
}

.navbar a {
  color: #2E5BFF;
  text-decoration: none;
  margin-right: 20px;
  font-size: 18px;
  font-weight: bold;
}

/* 标题样式 */
h1 {
  font-size: 18px;
  font-weight: bold;
  margin-bottom: 20px;
  color: #2E5BFF;
}

/* 输入框 */
textarea, input {
  width: 80%;
  padding: 12px;
  border: 1px solid #E8F4F8;
  border-radius: 6px;
  font-size: 14px;
  resize: vertical;
  margin: 10px 0;
}

/* 按钮样式 */
button {
  background-color: #2E5BFF;
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
}

button:hover {
  background-color: #1E4BEE;
}

/* 结果展示区 */
.result-area {
  margin-top: 20px;
  padding: 20px;
  background-color: white;
  border-radius: 6px;
  width: 80%;
}

.error-text {
  color: red;
  margin-bottom: 10px;
}

.correct-text {
  color: green;
  margin-bottom: 10px;
}

/* 返回按钮 */
.back-btn {
  margin-bottom: 20px;
  background-color: #F5F7FA;
  color: #2E5BFF;
}