/* 元のフォーム配置を維持し、任意メール欄だけを追加する。 */
#assessment_form .customer-email > label .optional {
  display: inline-block;
  flex-shrink: 0;
  padding: 2px 4px;
  border-radius: 2px;
  background: #666;
  color: #fff;
  font-family: sans-serif;
  font-size: 10px;
  line-height: 1.4;
  white-space: nowrap;
}

#assessment_form .wrap_forms .form-group.customer-email > label,
#assessment_form .wrap_forms .form-group.customer-email > .wpcf7-form-control-wrap {
  width: 100%;
  flex: 0 0 100%;
}

#assessment_form .wrap_forms .form-group.customer-email > label {
  display: flex;
  align-items: center;
  column-gap: .5em;
  margin-bottom: .5rem;
}