header {
  position: fixed;
  top: 0;
  left: 0;
  width: 158px;
  height: 100vh;
  z-index: 9999;
}
@media (max-width: 500px) {
  header {
    width: 100%;
    height: 78px;
  }
}
header .header_wrap {
  position: relative;
  width: 100%;
  height: 100%;
  overflow-y: auto;
}
@media (max-width: 500px) {
  header .header_wrap {
    width: 100%;
    height: 78px;
  }
}
header .header_wrap .inner {
  position: relative;
  padding-top: 90px;
  width: 100%;
  height: 100%;
  min-height: 690px;
  background-color: #290909;
}
@media (max-width: 500px) {
  header .header_wrap .inner {
    display: flex;
    padding-top: 0;
    padding-left: 25px;
    height: auto;
    min-height: auto;
    justify-content: space-between;
    align-items: center;
  }
}
header .header_wrap .inner .name {
  margin-left: auto;
  margin-right: auto;
  width: 45px;
  height: 440px;
}
@media (max-width: 500px) {
  header .header_wrap .inner .name {
    width: auto;
    height: auto;
  }
}
header .header_wrap .inner .name h1 {
  margin-left: auto;
  margin-right: auto;
  font-size: 30px;
  font-family: dnp-shuei-mincho-pr6n, sans-serif;
  font-weight: 400;
  font-style: normal;
  color: #ffffff;
  writing-mode: vertical-rl;
  letter-spacing: 0.5em;
}
@media (max-width: 500px) {
  header .header_wrap .inner .name h1 {
    font-size: 24px;
    letter-spacing: 0.3em;
    writing-mode: horizontal-tb;
    line-height: 1;
  }
}
header .header_wrap .inner .name h1 span {
  color: #ffffff;
}
header .header_wrap .inner .name h1 span.ja {
  padding-bottom: 30px;
  font-size: 20px;
  font-family: dnp-shuei-mincho-pr6n, sans-serif;
  font-weight: 400;
  font-style: normal;
  letter-spacing: 0.5em;
}
@media (max-width: 500px) {
  header .header_wrap .inner .name h1 span.ja {
    margin-right: 10px;
    padding-bottom: 0;
    font-size: 14px;
    letter-spacing: 0.3em;
    vertical-align: bottom;
  }
}
header .header_wrap .inner .name h1 span.en {
  padding-top: 40px;
  font-size: 14px;
  font-family: adobe-garamond-pro, serif;
  font-weight: 400;
  font-style: normal;
  letter-spacing: 0.5em;
}
@media (max-width: 500px) {
  header .header_wrap .inner .name h1 span.en {
    margin-left: 5px;
    padding-top: 0;
    font-size: 12px;
    letter-spacing: 0.2em;
    vertical-align: middle;
  }
}
header .header_wrap .inner .nav_wrap {
  position: absolute;
  width: 100%;
  height: 70px;
  bottom: 78px;
}
@media (max-width: 500px) {
  header .header_wrap .inner .nav_wrap {
    display: flex;
    position: static;
    width: 78px;
    height: 78px;
    justify-content: center;
    align-items: center;
  }
}
header .header_wrap .inner .nav_wrap .hamburger {
  display: flex;
  margin-top: 22px;
  margin-left: auto;
  margin-right: auto;
  width: 35px;
  height: 26px;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  align-content: space-between;
  cursor: pointer;
}
@media (max-width: 500px) {
  header .header_wrap .inner .nav_wrap .hamburger {
    margin-top: 0;
  }
}
header .header_wrap .inner .nav_wrap .hamburger span {
  width: 100%;
  height: 2px;
  background-color: #ffffff;
}
header nav {
  display: flex;
  position: absolute;
  padding-left: 62px;
  padding-right: 62px;
  left: -790px;
  bottom: 78px;
  width: 790px;
  height: 70px;
  background-color: rgba(203, 204, 193, 0.9);
  justify-content: space-between;
  align-items: center;
  transition: 0.5s;
}
@media (max-width: 500px) {
  header nav {
    display: block;
    padding: 25px 0 45px 25px;
    top: 0;
    left: auto;
    right: -110px;
    bottom: auto;
    width: 110px;
    height: auto;
  }
}
header nav.open {
  left: 0;
}
@media (max-width: 500px) {
  header nav.open {
    left: auto;
    right: 0;
  }
}
header nav .close {
  position: relative;
  width: 35px;
  height: 26px;
  cursor: pointer;
}
@media (max-width: 500px) {
  header nav .close {
    margin-left: auto;
    margin-right: 20px;
  }
}
header nav .close span {
  display: block;
  position: absolute;
  width: 100%;
  height: 3px;
  background-color: #000000;
  transform: rotate(45deg) translate(8px, 8px);
}
header nav .close span:first-child {
  transform: rotate(-45deg) translate(-8px, 8px);
}
header nav .link {
  display: flex;
  justify-content: flex-start;
  align-items: center;
}
@media (max-width: 500px) {
  header nav .link {
    display: block;
    margin-top: 50px;
  }
}
header nav .link a {
  margin-left: 60px;
  font-size: 14px;
  font-family: source-han-sans-japanese, sans-serif;
  font-weight: 300;
  font-style: normal;
  color: #000000;
  letter-spacing: 0.3em;
}
@media (max-width: 500px) {
  header nav .link a {
    margin-top: 35px;
    margin-left: 0;
    line-height: 1;
  }
}
header nav .link a:first-child {
  margin-left: 0;
}
@media (max-width: 500px) {
  header nav .link a:first-child {
    margin-top: 0;
  }
}