body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 20px;
  background-color: #f5f5f5;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  background: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header {
  text-align: center;
  margin-bottom: 30px;
}

.btn {
  background: #007bff;
  color: white;
  padding: 12px 24px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 16px;
  margin: 10px;
}

.btn:hover {
  background: #0056b3;
}

.news-item {
  border: 1px solid #ddd;
  margin: 20px 0;
  padding: 20px;
  border-radius: 8px;
  background: #fafafa;
}

.news-title {
  font-size: 1.5em;
  font-weight: bold;
  margin-bottom: 10px;
  color: #333;
}

.news-source {
  color: #666;
  font-size: 0.9em;
  margin-bottom: 5px;
}

.news-time {
  color: #999;
  font-size: 0.8em;
  margin-bottom: 15px;
}

.news-summary {
  margin: 15px 0;
  line-height: 1.6;
}

.news-summary h4 {
  color: #007bff;
  margin-bottom: 10px;
}

.news-summary p {
  background: white;
  padding: 15px;
  border-radius: 4px;
  border-left: 4px solid #007bff;
}

.loading {
  text-align: center;
  padding: 20px;
  color: #666;
}

.error {
  color: #dc3545;
  background: #f8d7da;
  padding: 10px;
  border-radius: 4px;
  margin: 10px 0;
}

.success {
  color: #155724;
  background: #d4edda;
  padding: 10px;
  border-radius: 4px;
  margin: 10px 0;
}