@charset "UTF-8";
/* CSS Document */
html {
  font-size: 62.5%;
  width: 100%;
  scroll-behavior: smooth;
}
body {
  color: #333;
  font-family: serif;
  font-weight: 500;
  font-size: 1.6rem;
  line-height: 2.4rem;
}
section h2 {
  font-size: 2.4rem;
  text-align: center;
}
a:hover {
  opacity: 0.5;
}
*, *::before, *::before {
  box-sizing: border-box;
}
.top {
  display: none;
}
.top-message {
  display: none;
}
.desktop-navigation{
  display: block;
}
.header-navigation {
  display: none;
}
.company-name {
  height: 65px;
  margin-top: 20px;
}
/* navigation */
.open-button, .close-button {
  display: none;
}
.header {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  height: 100px;
  margin: 0 auto 15px;
  background-color: #fff;
  z-index: 10000;
}

@media(max-width:990px) {
  .mobile_header {
    position: relative;
    background-color: #fff;
    height: 70px;
  }
  .desktop-navigation{
    display: none;
  }
  .top {
    display: block;
    width: 70px;
    position: absolute;
    top: 13px;
    left: 10px;
  }
  .mobile_header img.top{
      width: 85px;
  }
  .top-message {
    display: block;
    font-size: 1.4rem;
    line-height: 1.6rem;
    margin: 0 auto;
    padding-top: 20px;
    text-align: center;
  }
  .mobile_menu{
    position: fixed;
    top:0;
    right: 0;
    z-index: 8000;
  }

  .company-name {
    display: none;
  }
  .header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 50px;
    margin: 0 auto 10px;
    background-color: initial;
  }

  .open-button {
    display: block;
    position: absolute;
    right: 10px;
    top: 10px;
    width: 40px;
    height: 40px;
    cursor: pointer;
    background-color: rgba(255, 255, 255, 0)  !important; 
    border: none !important;
}
  .open-button span, .open-button span:before, .open-button span:after {
    position: absolute;
    height: 3px;
    width: 25px;
    border-radius: 3px;
    background: #333;
    display: block;
    content: "";
  }
  .open-button span:before {
    bottom: -8px;
  }
  .open-button span:after {
    bottom: -16px;
  }
  .close-button {
    display: none;
    position: absolute;
    top: 0;
    right: 0;
    color: #333;
    font-size: 20px;
    padding: 20px;
    background-color: #fff  !important; 
    border: none !important;
  }

  .close-button span{
      display: block;
      width: 50px;/*枠の大きさ*/
      height: 50px;/*枠の大きさ*/
      position: relative;
  }

  .close-button span:before, .close-button span:after{
      content: "";
      display: block;
      width: 40px;/*バツ線の長さ*/
      height: 4px;/*バツ線の太さ*/
      background: #000;
      transform: rotate(45deg);
      position: absolute;
      top: 14px;
      left: 16px;
  }

  .close-button span:after{
      transform: rotate(-45deg);
      transform-origin:100% 50%;
      left: auto;
      right: 0;
      top: 0;
  }


  .close-button:after{
    content: "CLOSE";
    color: #191919 !important;
    position: absolute;
    top: 52px;
    right: 16px;
    font-size: 12px;
    font-weight: 100;
    font-family: Noto Sans CJK JP;
    transform: rotate(0deg);
  }

  .header nav {
    display: none;
    z-index: 1000;
    position: fixed;
    top: 0;
    right: 0;
    background-color: #fff;
    width: 50%;
    height: 100%;
    padding-top: 67px;
    box-shadow: 10px 10px 25px rgba(0, 0, 0, 0.4);
  }
  .header nav ul li {
    border-bottom: solid 1px rgba(255, 255, 255, 0.5);
  }
  .header nav ul li:first-child {
    border-top: solid 1px rgba(255, 255, 255, 0.5);
  }
  .header nav ul li a {
    font-weight: 600;
    line-height: 40px;
    vertical-align: middle;
    text-decoration: none;
    color: #333;
    margin-left: 30px;
  }
  .lunguage a {
    text-decoration: none;
  }
  .ja {
    margin-left: 30px;
    margin-right: 10px;
  }
}
@media(min-width:990px) {
  .desktop_header {
    display: flex;
    justify-content: center;
  }
  .desktop_header li {
    margin-right: 30px;
  }
  .desktop_header li > a {
    display: block;
    text-decoration: none;
    color: #333;
    font-size: 1.6rem;
    padding: 40px 0px 30px;
  }
  .lunguage {
    margin-top: 40px;
  }
  .lunguage a {
    text-decoration: none;
    color: #333333;
  }
  .ja {
    padding-right: 20px;
  }
}