.rng-container {
  width: 100%;
  font-family: 'Segoe UI', Arial, sans-serif;
  color: #333;
  background-color: #f8f9fa;
  overflow: hidden;
}

.rng-controls {
  padding: 24px 0;
  background-color: white;
  border-bottom: 1px solid #eaeaea;
}

.control-group {
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  padding: 0 24px;
}

.control-group label {
  min-width: 120px;
  font-weight: 500;
  margin-bottom: 6px;
}

.control-input {
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  width: 200px;
  font-size: 1rem;
  transition: border-color 0.3s;
}

.control-input:focus {
  border-color: #2575fc;
  outline: none;
  box-shadow: 0 0 0 2px rgba(37, 117, 252, 0.2);
}

.rng-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  padding: 0 24px;
  flex-wrap: wrap;
}

.rng-actions button {
  padding: 12px 24px;
  border: none;
  border-radius: 4px;
  font-weight: 600;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.2s;
}

.btn-generate {
  background-color: #2575fc;
  color: white;
}

.btn-generate:hover {
  background-color: #1c64e0;
  transform: translateY(-2px);
}

.btn-copy {
  background-color: #20c997;
  color: white;
}

.btn-copy:hover {
  background-color: #1ba87e;
}

.rng-results {
  background-color: white;
  padding: 24px 0;
}

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
  padding: 0 24px;
}

.results-header h3 {
  margin: 0;
  font-size: 1.4rem;
  color: #2d3436;
}

.results-info {
  display: flex;
  gap: 20px;
  color: #666;
  font-size: 0.95rem;
}

.results-info span {
  font-weight: 500;
  color: #2575fc;
}

.results-area {
  padding: 0 24px;
}

.results-textarea {
  width: 100%;
  min-height: 200px;
  padding: 16px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 1rem;
  line-height: 1.5;
  background-color: #f8f9fa;
  resize: vertical;
  transition: border-color 0.3s;
}

.results-textarea:focus {
  border-color: #2575fc;
  outline: none;
  box-shadow: 0 0 0 2px rgba(37, 117, 252, 0.1);
}

.results-textarea::placeholder {
  color: #999;
  font-style: italic;
}

/* 响应式调整 */
@media (max-width: 768px) {
  .control-group {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .control-group label {
    margin-bottom: 8px;
  }
  
  .control-input {
    width: 100%;
    max-width: 300px;
  }
  
  .rng-actions {
    flex-direction: column;
  }
  
  .rng-actions button {
    width: 100%;
  }
  
  .results-header {
    flex-direction: column;
    align-items: flex-start;
  }
}