.hamburger {
  margin: 20px auto 0;
  width: 100%;
  max-width: 900px;
  display: flex;
  justify-content: space-between;
}

.logo {
  font-size: 40px;
  font-weight: 700;
}

.hamburger .btn-gNav {
  position: fixed;
  top: 28px;
  right: 20px;
  width: 30px;
  height: 24px;
  z-index: 12;
  box-sizing: border-box;
  cursor: pointer;
  -webkit-transition: all 400ms;
  transition: all 400ms;
}

.hamburger .btn-gNav span {
  position: absolute;
  width: 100%;
  height: 4px;
  background: #000;
  border-radius: 10px;
  -webkit-transition: all 400ms;
  transition: all 400ms;
}

.hamburger .btn-gNav span:nth-child(1) {
  top: 0;
}

.hamburger .btn-gNav span:nth-child(2) {
  top: 10px;
}

.hamburger .btn-gNav span:nth-child(3) {
  top: 20px;
}

.hamburger .btn-gNav.active span:nth-child(1) {
  background: #fff;
  top: 6px;
  -webkit-transform: rotate(-45deg);
  -moz-transform: rotate(-45deg);
  transform: rotate(-45deg);
}

.hamburger .btn-gNav.active span:nth-child(2),
.hamburger .btn-gNav.active span:nth-child(3) {
  top: 6px;
  background: #fff;
  -webkit-transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  transform: rotate(45deg);
}


.btn-gNav {
  display: none;
}

.gNav .gNav-menu {
  display: flex;
  justify-content: space-between;
}

.gNav .gNav-menu li {
  margin: 0 auto;
  padding: 0 5px;
}

@media screen and (max-width: 999px) {
  .btn-gNav {
      display: block;
  }

  .gNav {
      position: fixed;
      top: 0;
      right: -100%;
      width: 100%;
      height: 100%;
      background-color: rgba(0, 0, 0, 0.8);
      font-size: 16px;
      box-sizing: border-box;
      z-index: 1;
      padding-top: 50px;
      transition: .3s;
  }

  .gNav.open {
      right: 0;
  }

  .gNav .gNav-menu {
      padding: 0;
      width: 100%;
      height: 100%;
      display: block;
      flex-direction: column;
      text-align: center;
      /*justify-content: center;*/
      color: #fff;
  }

  .gNav .gNav-menu li {
      width: 86%;
      padding: 15px;
      border-bottom: #525252 1px solid;
  }

  #mainVisual {
    height: 90vh;
  }

  #businessContent div ul{
    flex-direction: column;
  }

  #businessContent div:last-child ul li{
    width: 100%;
  }

  #mission {
    flex-direction: column;
  }

  #mission div{
    width: 100%;
  }

  #mission img {
    width: 100%;
    margin-top: 15px;
  }

  #ccc div {
    flex-direction: column;
    align-items: center;
  }

  #ccc{
    padding: 0 10%;
  }

  #ccc div dl{
    width: 100%;
    margin-bottom: 15px;
  }

  #reason ul li{
    flex-direction: column;
    margin-bottom: 30px;
  }

  #reason ul li dl{
    width: 100%;
  }

  #contact {
    margin: 0 auto;
  }

  #contact div{
    flex-direction: column;
  }

  #contact div form {
    width: 100%;
  }

  input[type=text],
  textarea {
    width: 100%;
  }

  form{
    margin-bottom: 30px;
  }

  footer{
    padding: 50px 20px;
  }

  footer .f_contact ul{
    flex-direction: column;
  }

  footer .f_contact ul li{
    text-align: left;
    margin-bottom: 10px;
  }

  footer .f_contact ul li img{
    margin: 0;
  }

  footer .f_link_com{
    width: 100%;
    flex-direction: column;
  }

  footer .f_link_com div{
    margin-bottom: 30px;
    width: 100%;
  }

  footer .f_link_com div ul{
    justify-content: flex-start;
  }

  footer .f_link_com div ul li{
    width: 50%;
    margin-bottom: 10px;
  }

}