.formSec {
  margin-top: 14rem;
}
.form {
  max-width: 640px;
  margin: 0 auto;
}
.formDl {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  padding: 2.5rem;
  box-sizing: border-box;
  font-size: var(--fz18);
}
.formDl dt {
  width: 180px;
  margin-bottom: 3rem;
  padding: 1rem;
  box-sizing: border-box;
  line-height: 1.2;
}

.formDl dd {
  width: calc(100% - 180px);
  margin-bottom: 3rem;
}
.formDl dt:last-of-type,
.formDl dd:last-of-type {
  margin-bottom: 0;
}
.formDl input,
.formDl textarea {
  width: 100%;
  border: none;
  border-bottom: 1px solid #ccc;
  padding: 1rem;
  box-sizing: border-box;
}
.formDl textarea {
  min-height: 250px;
}
.formDl input:focus,
.formDl textarea:focus {
  outline: none;
  box-shadow: none;
  border: none;
  border-bottom: 1px solid #333;
}
.formDl input::placeholder {
  color: #e7e7e7;
  opacity: 1;
}
.formDl .signred {
  color: #e92b4a;
  margin-left: 0.5rem;
}

@media screen and (max-width: 640px) {
  .formDl {
    padding: 1rem;
  }
  .formDl dt {
    width: 100%;
    margin-bottom: 1rem;
  }

  .formDl dd {
    width: 100%;
    margin-bottom: 4rem;
  }
}