body {
  background: #f7f9fa;
  font-family: '微软雅黑', Arial, sans-serif;
}
.tax-info {
  background: #fff7e6;
  border-left: 5px solid #ffb94b;
  padding: 20px;
  border-radius: 10px;
  margin-bottom: 20px;
}
.result {
  font-size: 18px;
  background: #e6f8e0;
  border-left: 5px solid #4caf50;
  padding: 15px;
  border-radius: 10px;
  margin-bottom: 20px;
}
.history {
  background: #f7fafc;
  padding: 15px;
  border-radius: 10px;
  border: 1px solid #e3e6eb;
}
.table th, .table td {
  vertical-align: middle !important;
}