.pty-diagram {
  font-size: 14px;
  background: #fafbfc;
  border: 1px solid #e3e4e8;
  border-radius: 6px;
  padding: 16px 12px 8px 12px;
  max-width: 100%;
  box-sizing: border-box;
}
.pty-row {
  display: flex;
  align-items: center;
  margin-bottom: 8px;
  flex-wrap: wrap;
}
.pty-row-reverse {
  margin-top: 4px;
  flex-direction: row-reverse;
}
.pty-box {
  background: #fff;
  border: 1px solid #d1d5db;
  border-radius: 4px;
  padding: 8px 10px;
  margin: 0 4px;
  min-width: 90px;
  text-align: center;
  box-sizing: border-box;
  flex: 0 0 auto;
}
.pty-title {
  font-weight: 600;
  margin-bottom: 2px;
}
.pty-desc {
  font-weight: normal;
  font-size: 12px;
  color: #888;
}
.pty-label {
  font-size: 12px;
  color: #4b5563;
  margin-top: 2px;
}
.pty-arrow {
  font-size: 18px;
  color: #bdbdbd;
  margin: 0 2px;
  user-select: none;
}
.pty-steps {
  margin: 12px 0 0 18px;
  padding: 0;
  color: #333;
  font-size: 13px;
  line-height: 1.7;
}
.pty-steps li {
  margin-bottom: 2px;
}