.form__header {
  padding: 24rem 0;
  display: flex;
  justify-content: center;
  border-bottom: 1rem solid #e5e5e5;
}
.form__header .form__logo {
  width: 150rem;
  display: flex;
}

.form__main {
  width: 600rem;
  max-width: 100%;
  margin: 0 auto;
  padding: 60rem 20rem 100rem;
}

.form__title {
  font-family: SourceHanSans-Heavy-90ms-RKSJ-H;
  font-weight: normal;
  font-size: 28rem;
  line-height: 1.4;
  text-align: center;
  color: #231815;
}

.form__lead {
  font-family: SourceHanSans-Normal-90ms-RKSJ-H;
  font-weight: normal;
  font-size: 14rem;
  line-height: 1.8;
  margin-top: 16rem;
  text-align: center;
  color: #231815;
}

.form__note {
  font-family: SourceHanSans-Normal-90ms-RKSJ-H;
  font-weight: normal;
  font-size: 14rem;
  line-height: 1.8;
  margin-top: 8rem;
  text-align: center;
  color: #231815;
}

.req__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 8rem;
  margin-left: 8rem;
  border-radius: 4rem;
  background: #841b20;
  font-size: 11rem;
  line-height: 1.6;
  color: #fff;
  vertical-align: middle;
}

.opt__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 8rem;
  margin-left: 8rem;
  border: 1rem solid #3ba55c;
  border-radius: 4rem;
  background: #fff;
  font-size: 11rem;
  line-height: 1.6;
  color: #3ba55c;
  vertical-align: middle;
}

#entryForm {
  margin-top: 40rem;
}

.form__row {
  margin-top: 28rem;
}
.form__row:first-child {
  margin-top: 0;
}

.form__label {
  display: block;
  font-family: SourceHanSans-Bold-90ms-RKSJ-H;
  font-weight: normal;
  font-size: 15rem;
  line-height: 1.6;
  margin-bottom: 10rem;
  color: #231815;
}

.form__row input[type="text"],
.form__row input[type="email"],
.form__row input[type="tel"],
.form__row select,
.form__row textarea {
  width: 100%;
  padding: 14rem 16rem;
  border: 1rem solid #ccc;
  border-radius: 8rem;
  font-family: SourceHanSans-Normal-90ms-RKSJ-H;
  font-size: 15rem;
  color: #231815;
  background: #fff;
}
.form__row input:focus,
.form__row select:focus,
.form__row textarea:focus {
  outline: none;
  border-color: #841b20;
}

.form__row textarea {
  resize: vertical;
}

.form__radios {
  display: flex;
  flex-wrap: wrap;
  gap: 20rem;
}
.form__radios.vertical {
  flex-direction: column;
  flex-wrap: nowrap;
  gap: 12rem;
}
.radio__item {
  display: flex;
  align-items: center;
  gap: 8rem;
  font-family: SourceHanSans-Normal-90ms-RKSJ-H;
  font-size: 15rem;
  color: #231815;
  cursor: pointer;
}
.radio__item input {
  width: 18rem;
  height: 18rem;
}

.form__sub {
  margin-top: 12rem;
}

.accordion__btn {
  display: inline-flex;
  align-items: center;
  gap: 8rem;
  width: auto;
  padding: 0 0 2rem;
  border: none;
  border-bottom: 1rem solid #841b20;
  border-radius: 0;
  background: none;
  text-align: left;
  font-family: SourceHanSans-Bold-90ms-RKSJ-H;
  font-size: 14rem;
  color: #841b20;
  cursor: pointer;
  transition: 0.3s;
}
.accordion__btn:hover {
  opacity: 0.7;
}
.accordion__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20rem;
  height: 20rem;
  border: 1rem solid currentColor;
  border-radius: 4rem;
  font-size: 10rem;
  line-height: 1;
}

.form__accordion {
  display: none;
}
.form__accordion.is-open {
  display: block;
}

.form__error {
  margin-top: 24rem;
  text-align: center;
  font-size: 14rem;
  color: #d1373f;
}

.submit__btn {
  width: 300rem;
  height: 60rem;
  max-width: 100%;
  margin: 24rem auto 0;
  border: none;
  border-radius: 30rem;
  background: #841b20;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: 0.3s;
}
.submit__btn span {
  font-family: SourceHanSans-Bold-90ms-RKSJ-H;
  font-size: 18rem;
  letter-spacing: 0.06em;
  color: #fff;
}
.submit__btn:hover {
  opacity: 0.7;
}
.submit__btn:disabled {
  opacity: 0.5;
  cursor: default;
}

.form__complete {
  margin-top: 60rem;
  padding: 40rem 20rem;
  border-radius: 12rem;
  background: #f7f7f7;
  text-align: center;
}
.form__complete p {
  font-family: SourceHanSans-Normal-90ms-RKSJ-H;
  font-size: 16rem;
  line-height: 1.8;
  color: #231815;
}

@media screen and (max-width: 768px) {
  .form__header {
    padding: 40rem 0;
  }
  .form__header .form__logo {
    width: 240rem;
  }
  .form__main {
    padding: 80rem 40rem 150rem;
  }
  .form__title {
    font-size: 48rem;
  }
  .form__lead {
    font-size: 26rem;
    margin-top: 30rem;
  }
  .form__note {
    font-size: 26rem;
    margin-top: 16rem;
  }
  .req__mark,
  .opt__mark {
    font-size: 20rem;
    padding: 4rem 14rem;
  }
  #entryForm {
    margin-top: 70rem;
  }
  .form__row {
    margin-top: 50rem;
  }
  .form__label {
    font-size: 28rem;
    margin-bottom: 18rem;
  }
  .form__row input[type="text"],
  .form__row input[type="email"],
  .form__row input[type="tel"],
  .form__row select,
  .form__row textarea {
    padding: 24rem 20rem;
    border-radius: 12rem;
    font-size: 26rem;
  }
  .form__radios {
    flex-direction: column;
    gap: 20rem;
  }
  .radio__item {
    font-size: 26rem;
  }
  .radio__item input {
    width: 32rem;
    height: 32rem;
  }
  .form__sub {
    margin-top: 16rem;
  }
  .accordion__btn {
    font-size: 24rem;
    padding-bottom: 4rem;
  }
  .accordion__icon {
    width: 32rem;
    height: 32rem;
    border-radius: 6rem;
    font-size: 16rem;
  }
  .form__error {
    font-size: 24rem;
  }
  .submit__btn {
    width: 100%;
    height: 100rem;
    border-radius: 50rem;
    margin-top: 50rem;
  }
  .submit__btn span {
    font-size: 32rem;
  }
  .form__complete {
    margin-top: 100rem;
    padding: 60rem 30rem;
  }
  .form__complete p {
    font-size: 28rem;
  }
}