html,
body {
  height: 100vh;
  background-image: url(../images/contact_bg.png);
  padding: 1.6rem 0.8rem;
  font-family: Hiragino Kaku Gothic ProN, ヒラギノ角ゴ ProN,
    Hiragino Kaku Gothic Pro, ヒラギノ角ゴ Pro;
}

html {
  font-size: 62.5%;
}
h2 {
  margin: 0 0 2.4rem;
}
.form__outer {
  padding: 2.4rem;
  max-width: 48rem;
  margin: 0 auto;
  background-color: #fff;
  border-radius: 0.8rem;
}
.form__set {
  display: flex;
  flex-direction: column;
  margin-bottom: 1.6rem;
  gap: 0.4rem;
}
.radio-item {
  display: flex;
  align-items: center;
}
.radio-item span{
  font-size: 1.4rem;
}
.input {
  padding: 0.375rem 0.75rem;
  color: #2d2d2d;
  height: 3.6rem;
  background-color: #fff;
  border: 1px solid #adadad;
  border-radius: 0.4rem;
}
.textarea {
  padding: 0.375rem 0.75rem;
  color: #2d2d2d;
  height: 10rem;
  background-color: #fff;
  border: 1px solid #adadad;
  border-radius: 0.4rem;
  resize: none;
}
.input::placeholder,
.textarea::placeholder {
  color: var(--black3);
}
.label {
  font-weight: 600;
  font-size: 1.6rem;
}
label.row {
  display: flex;
  height: 4.4rem;
  align-items: center;
  justify-content: center;
}
.row span {
  margin-left: 0.4rem;
  font-weight: 600;
  font-size: 1.4rem;
}
.required {
  margin-left: 0.4rem;
  font-size: 1.4rem;
  color: red;
}
.error-message {
  color: red;
  font-size: 1.2rem;
  margin-top: 0.4rem;
}
.agree {
  margin: -0.8rem auto 0;
}

.button {
  display: block;
  width: 50%;
  min-width: 20rem;
  padding: 1rem;
  margin: 2.4rem auto 0;
  background-color: #333;
  color: #fff;
  border: none;
  border-radius: 0.4rem;
  font-size: 1.6rem;
  font-weight: 600;
  cursor: pointer;
}
.formrun-error {
  color: red;
  font-size: 12px;
  margin-bottom: 10px;
}
.formrun-success {
  color: green;
  font-size: 12px;
  margin-bottom: 10px;
}