.item-md.item-input.input-has-focus .item-inner {
  border-bottom-color: transparent !important;
  box-shadow: none !important;
}

.list-md .item-input.input-has-focus:last-child {
  border-bottom-color: transparent !important;
  box-shadow: none !important;
}

.list-md .item-input.input-has-focus:last-child .item-inner {
  box-shadow: none;
}

.item-md.item-input.ng-valid.input-has-value:not(.input-has-focus) .item-inner {
  border-bottom-color: transparent !important;
  box-shadow: none !important;
}

.list-md .item-input.ng-valid.input-has-value:not(.input-has-focus):last-child {
  border-bottom-color: transparent !important;
  box-shadow: none !important;
}

.list-md .item-input.ng-valid.input-has-value:not(.input-has-focus):last-child .item-inner {
  box-shadow: none;
}

.item-md.item-input.ng-invalid.ng-touched:not(.input-has-focus) .item-inner {
  border-bottom-color: transparent !important;
  box-shadow: none !important;
}

.list-md .item-input.ng-invalid.ng-touched:not(.input-has-focus):last-child {
  border-bottom-color: transparent !important;
  box-shadow: none !important;
}

放到app.scss里面。