header, .l-gNavBtn-wrap {
  opacity: 1;
}

.sub_v {
  width: 100%;
  height: 350px;
  background-color: #fff;
}

@media screen and (max-width: 750px) {
  .sub_v {
    width: 100%;
    height: 450px;
    background-color: #fff;
  }
}

.sub_v_wrap {
  width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  flex-direction: column;
  padding-bottom: 10px;
}

.sub_v_wrap::after {
  content: "";
  display: inline-block;
  width: 100%;
  height: 100%;
  background-color: #fff;
  background-image: url(../../image/renga_pt.png);
  background-repeat: repeat;
  opacity: 0.2;
  position: absolute;
  top: 0;
  left: 0;
}

.explanation {
  text-align: center;
}

@media screen and (max-width: 750px) {
  .explanation {
    text-align: center;
  }

}

/* ===============================================
お問い合わせ
=============================================== */
.contact-primary {
  width: min(90%, 960px);
  margin: 0px auto 65px auto;
}

#mail_form {
  margin: 65px auto;
}


@media screen and (max-width: 830px) {

  #mailform-layout.simple .item {
    flex-direction: column;
    align-items: flex-start;
    font-size: 25px;
  }

  #mailform-layout .item .name {
    width: auto;
    position: initial;
  }

  #mailform-layout .required {
    position: initial;
    margin-left: 10px;
  }

  #mailform-layout .item .answer {
    padding-top: 10px;
    width: 100%;
    padding-left: 0;
  }

}

.city {
    width: 30% !important;
}

@media screen and (max-width: 750px) {
  .city {
      width: 50% !important;
  }
}

@media screen and (max-width: 550px) {
  .inquiry_type .checkbox-group {
    flex-direction: column;
    text-align: left;
  }
}

.topback a {
  right: 5%;
}