.webform-submission-form input[value="天乃美愛"] + label {
  color: hotpink;
  font-weight: bold;
}

.webform-submission-form input[value="月城エレナ"] + label {
  color: mediumpurple;
  font-weight: bold;
}

.webform-submission-form input[value="陽向星奈"] + label {
  color: darkorange;
  font-weight: bold;
}

.webform-submission-form input[value="冬月凛"] + label {
  color: dodgerblue;
  font-weight: bold;
}

.webform-submission-form input[value="花咲ことね"] + label {
  color: mediumspringgreen;
  font-weight: bold;
}

.webform-submission-form label {
  text-shadow: 0 0 5px rgba(255,255,255,0.7);
}