body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  color: #333;
  background-color: #f5f5f5;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 20px;
  background-color: #fff;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  min-height: 100vh;
}

h1 {
  color: #2c3e50;
  border-bottom: 2px solid #3498db;
  padding-bottom: 10px;
}

h2 {
  color: #2980b9;
}

h3 {
  color: #16a085;
}

/* 首页样式 */
.tabs {
  display: flex;
  margin-bottom: 20px;
  border-bottom: 1px solid #ddd;
}

.tab {
  padding: 10px 20px;
  cursor: pointer;
  background-color: #f5f5f5;
  border: 1px solid #ddd;
  border-bottom: none;
  margin-right: 5px;
  border-radius: 5px 5px 0 0;
}

.tab.active {
  background-color: #3498db;
  color: white;
  border-color: #3498db;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.dialogue-list {
  list-style-type: none;
  padding: 0;
}

.dialogue-item {
  padding: 15px;
  margin-bottom: 10px;
  background-color: #f9f9f9;
  border-left: 4px solid #3498db;
  cursor: pointer;
  transition: all 0.3s ease;
}

.dialogue-item:hover {
  background-color: #eaf2f8;
  transform: translateX(5px);
}

.dialogue-title {
  font-weight: bold;
  font-size: 18px;
}

.dialogue-scenarios {
  margin-top: 5px;
  color: #7f8c8d;
  font-size: 14px;
}

/* 详情页样式 */
.scenario {
  margin-bottom: 30px;
  padding: 15px;
  background-color: #f9f9f9;
  border-radius: 5px;
}

.dialogue {
  margin-bottom: 20px;
  padding: 10px;
  background-color: #fff;
  border: 1px solid #eee;
  border-radius: 5px;
}

.dialogue-header {
  margin-bottom: 15px;
}

.dialogue-audio {
  width: 100%;
  margin-top: 10px;
}

.exchange {
  margin-bottom: 15px;
  padding-bottom: 10px;
  border-bottom: 1px dashed #ddd;
}

.english {
  cursor: pointer;
}

.chinese {
  display: none;
  margin-top: 8px;
  padding: 8px;
  background-color: #f0f8ff;
  border-left: 3px solid #3498db;
}

.back-link {
  display: inline-block;
  margin-bottom: 20px;
  padding: 8px 15px;
  background-color: #3498db;
  color: white;
  text-decoration: none;
  border-radius: 4px;
}

.back-link:hover {
  background-color: #2980b9;
}