#header {
  position: sticky;
  width: 100%;
  top: 0;
  left: 0;
  z-index: 99;
  transition: 0.5s;
}
#header .header {
  max-width: 1800px;
  width: calc(100% - 100px);
  margin: 0 auto;
  position: relative;
  padding: 35px 0;
}
#header .header .header_inner {
  display: grid;
  grid-template-columns: 1fr repeat(2, 290px) 110px;
  grid-column-gap: 30px;
  align-items: center;
}
#header .header .header_inner .header_logo a {
  display: grid;
  grid-template-columns: 260px auto;
  grid-column-gap: 50px;
  align-items: center;
}
#header .header .header_inner .header_logo a img {
  transition-duration: 0.3s;
}
#header .header .header_inner .header_logo a .font_en {
  color: var(--color_main);
  font-size: 1.4rem;
  transition-duration: 0.3s;
}
#header .header .header_inner .btn_entry {
  height: 60px;
  padding: 0 30px;
  font-size: 1.5rem;
  background-color: var(--color_sub);
  color: var(--color_main);
  border-radius: 30px;
  display: grid;
  grid-template-columns: auto auto 1fr auto;
  align-items: center;
  grid-column-gap: 1em;
}
#header .header .header_inner .btn_entry::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--color_main);
}
#header .header .header_inner .btn_entry .font_jp {
  font-size: 1.1rem;
  line-height: 1.4;
}
#header .header .header_inner .btn_entry img {
  width: 1em;
}
#header .header .header_inner .btn_entry .icon {
  position: relative;
  width: 1.4em;
}
#header .header .header_inner .btn_entry .icon::before, #header .header .header_inner .btn_entry .icon::after {
  content: "";
  width: 100%;
  height: 1px;
  background-color: var(--color_main);
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) rotate(0deg);
  transition: 0.33s;
}
#header .header .header_inner .btn_entry .icon::after {
  width: 50%;
  transform: translate(-50%, -50%) rotate(90deg);
}
#header .header .header_inner .btn_entry.open .icon::before {
  width: 50%;
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}
#header .header .header_inner .btn_entry.open .icon::after {
  width: 100%;
  transform: translate(-50%, -50%) rotate(180deg);
}
#header .header .header_inner .header_newgrad {
  position: relative;
}
#header .header .header_inner .header_newgrad a {
  position: relative;
  z-index: 1;
}
#header .header .header_inner .header_newgrad ul {
  position: absolute;
  width: 100%;
  z-index: 0;
  top: 30px;
  left: 0;
  background-color: var(--color_sub);
  padding: 50px 30px 25px;
  border-radius: 0 0 30px 25px;
  font-size: 1.5rem;
  display: none;
}
#header .header .header_inner .header_newgrad ul li {
  padding-left: 1.2em;
}
#header .header .header_inner .header_newgrad ul li:not(:last-child) {
  margin-bottom: 1em;
}
#header .header .header_inner .header_newgrad ul li a {
  color: var(--color_main);
}
#header .header .header_inner .header_btn {
  height: 60px;
  background-color: var(--color_main);
  border: none;
  border-radius: 10px;
  position: relative;
  cursor: pointer;
}
#header .header .header_inner .header_btn .bar::before, #header .header .header_inner .header_btn .bar::after {
  content: "";
  display: block;
  width: 36%;
  height: 1px;
  background-color: var(--color_white);
  position: absolute;
  top: 44%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(0deg);
  transition: 0.3s;
}
#header .header .header_inner .header_btn .bar::after {
  top: 56%;
}

#menu {
  position: fixed;
  z-index: 90;
  background-color: var(--color_main);
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  opacity: 0;
  pointer-events: none;
  transition-duration: 0.3s;
}
#menu .menu_wrap {
  display: grid;
  height: 100%;
  padding: 150px 50px 60px;
  overflow-y: auto;
}
#menu .menu_wrap .menu_inner {
  width: 100%;
  max-width: 1800px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: 1fr auto;
  grid-row-gap: 50px;
}
#menu .menu_wrap .menu_inner .menu_item {
  grid-area: 1/1/2/3;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  align-content: center;
  grid-gap: 50px;
  width: 100%;
  max-width: 1600px;
  margin: 0 auto;
  font-size: 1.5rem;
}
#menu .menu_wrap .menu_inner .menu_item > li > .haschild {
  font-size: 2.6rem;
  color: var(--color_white);
  display: grid;
  grid-template-columns: 12px 1fr 22px;
  align-items: center;
  grid-column-gap: 20px;
}
#menu .menu_wrap .menu_inner .menu_item > li > .haschild::before {
  content: "";
  aspect-ratio: 1;
  background-color: var(--color_white);
  border-radius: 50%;
}
#menu .menu_wrap .menu_inner .menu_item > li > .haschild .icon {
  position: relative;
  display: none;
}
#menu .menu_wrap .menu_inner .menu_item > li > .haschild .icon::before, #menu .menu_wrap .menu_inner .menu_item > li > .haschild .icon::after {
  content: "";
  width: 100%;
  height: 1px;
  background-color: var(--color_white);
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) rotate(0deg);
  transition: 0.33s;
}
#menu .menu_wrap .menu_inner .menu_item > li > .haschild .icon::after {
  width: 50%;
  transform: translate(-50%, -50%) rotate(90deg);
}
#menu .menu_wrap .menu_inner .menu_item > li > .haschild.open .icon::before {
  width: 50%;
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}
#menu .menu_wrap .menu_inner .menu_item > li > .haschild.open .icon::after {
  width: 100%;
  transform: translate(-50%, -50%) rotate(180deg);
}
#menu .menu_wrap .menu_inner .menu_item > li ul {
  padding-left: 32px;
  padding-top: 1.5em;
}
#menu .menu_wrap .menu_inner .menu_item > li ul li:not(:last-child) {
  margin-bottom: 0.5em;
}
#menu .menu_wrap .menu_inner .menu_item > li ul li a {
  line-height: 1.5;
  color: #FFFFFF;
}
#menu .menu_wrap .menu_inner .menu_txt {
  font-size: 5.2rem;
  line-height: 1.5;
  color: var(--color_white);
  opacity: 0.3;
  font-weight: 600;
}
#menu .menu_wrap .menu_inner .menu_item2 {
  font-size: 1.5rem;
  align-self: end;
  display: grid;
  justify-items: end;
  grid-row-gap: 70px;
}
#menu .menu_wrap .menu_inner .menu_item2 ul {
  display: grid;
  justify-items: end;
  grid-row-gap: 1em;
}
#menu .menu_wrap .menu_inner .menu_item2 ul li a {
  display: inline-grid;
  grid-template-columns: repeat(2, auto);
  align-items: center;
  grid-column-gap: 1em;
  color: var(--color_white);
}
#menu .menu_wrap .menu_inner .menu_item2 ul li a img {
  width: 1em;
}
#menu .menu_wrap .menu_inner .copyright {
  color: var(--color_white);
}

body.hideheader #header {
  top: -150px;
}
body.menuopen {
  overflow: hidden;
}
body.menuopen #header .header .header_inner .header_logo a img {
  filter: brightness(0) invert(1);
}
body.menuopen #header .header .header_inner .header_logo a .font_en {
  color: var(--color_white);
}
body.menuopen #header .header .header_inner .btn_entry {
  background-color: var(--color_white);
}
body.menuopen #header .header .header_inner .header_newgrad ul {
  background-color: var(--color_white);
}
body.menuopen #header .header .header_inner .header_btn .bar::before {
  top: 50% !important;
  transform: translate(-50%, -50%) rotate(25deg);
}
body.menuopen #header .header .header_inner .header_btn .bar::after {
  top: 50% !important;
  transform: translate(-50%, -50%) rotate(-25deg);
}
body.menuopen #menu {
  opacity: 1;
  pointer-events: all;
}
@media (hover: hover) {
  #header .header .header_inner .btn_entry {
    transition: 0.3s;
  }
  #header .header .header_inner .btn_entry::before, #header .header .header_inner .btn_entry img {
    transition: 0.3s;
  }
  #header .header .header_inner .btn_entry:hover {
    color: var(--color_sub);
    background-color: var(--color_main);
  }
  #header .header .header_inner .btn_entry:hover::before {
    background-color: var(--color_sub);
  }
  #header .header .header_inner .btn_entry:hover img {
    filter: brightness(0) invert(1);
  }
  #header .header .header_inner .btn_entry:hover .icon::before, #header .header .header_inner .btn_entry:hover .icon::after {
    background-color: var(--color_white);
  }
  #header .header .header_inner .header_btn:hover .bar::before {
    top: 40%;
  }
  #header .header .header_inner .header_btn:hover .bar::after {
    top: 60%;
  }
  body.menuopen #header .header .header_inner .btn_entry:hover {
    background-color: var(--color_main2);
  }
  body.menuopen #menu {
    opacity: 1;
    pointer-events: all;
  }
}
@media screen and (max-width: 1500px) {
  #menu .menu_wrap .menu_inner .menu_item {
    grid-template-columns: repeat(4, auto);
    grid-gap: 40px;
  }
  #menu .menu_wrap .menu_inner .menu_txt {
    font-size: 4.2rem;
  }
}
@media screen and (max-width: 1300px) {
  #header .header .header_inner {
    grid-column-gap: 20px;
  }
  #header .header .header_inner .header_logo a {
    grid-template-columns: 220px auto;
    grid-column-gap: 20px;
  }
}
@media screen and (max-width: 1200px) {
  #header .header {
    width: calc(100% - 60px);
  }
  #header .header .header_inner {
    display: grid;
    grid-template-columns: 1fr repeat(2, 290px) 100px;
  }
  #header .header .header_inner .header_logo a {
    grid-template-columns: 200px;
    grid-row-gap: 10px;
  }
  #menu .menu_wrap {
    padding: 150px 30px 50px;
  }
  #menu .menu_wrap .menu_inner .menu_item {
    grid-template-columns: repeat(2, 1fr) 25%;
  }
  #menu .menu_wrap .menu_inner .menu_item > li.internship {
    grid-area: 3/1/4/2;
  }
  #menu .menu_wrap .menu_inner .menu_txt {
    font-size: 3.5rem;
    line-height: 1.5;
    color: var(--color_white);
    opacity: 0.3;
    font-weight: 600;
  }
  #menu .menu_wrap .menu_inner .copyright {
    font-size: 1.4rem;
  }
}
@media screen and (min-width: 1024.1px) {
  #menu .menu_wrap .menu_inner .menu_item > li ul {
    display: block !important;
  }
}
@media screen and (max-width: 1024px) {
  #header .header .header_inner {
    display: grid;
    grid-template-columns: 1fr 100px;
    grid-column-gap: 20px;
  }
  #header .header .header_inner .header_logo a {
    grid-template-columns: 200px;
    grid-row-gap: 10px;
  }
  #menu .menu_wrap {
    padding: 120px 20px 60px;
  }
  #menu .menu_wrap .menu_inner {
    grid-template-columns: 1fr;
    grid-template-rows: unset;
    align-content: start;
    grid-row-gap: 0;
    max-width: 400px;
  }
  #menu .menu_wrap .menu_inner .menu_entry {
    max-width: 300px;
    margin: 0 auto 50px;
  }
  #menu .menu_wrap .menu_inner .menu_entry .btn_entry {
    height: 60px;
    padding: 0 30px;
    font-size: 1.5rem;
    background-color: var(--color_sub);
    color: var(--color_main);
    border-radius: 30px;
    display: grid;
    grid-template-columns: auto auto 1fr auto;
    align-items: center;
    grid-column-gap: 1em;
  }
  #menu .menu_wrap .menu_inner .menu_entry .btn_entry::before {
    content: "";
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background-color: var(--color_main);
  }
  #menu .menu_wrap .menu_inner .menu_entry .btn_entry .font_jp {
    font-size: 1.1rem;
    line-height: 1.4;
  }
  #menu .menu_wrap .menu_inner .menu_entry .btn_entry img {
    width: 1em;
  }
  #menu .menu_wrap .menu_inner .menu_entry .btn_entry .icon {
    position: relative;
    width: 1.4em;
  }
  #menu .menu_wrap .menu_inner .menu_entry .btn_entry .icon::before, #menu .menu_wrap .menu_inner .menu_entry .btn_entry .icon::after {
    content: "";
    width: 100%;
    height: 1px;
    background-color: var(--color_main);
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%) rotate(0deg);
    transition: 0.33s;
  }
  #menu .menu_wrap .menu_inner .menu_entry .btn_entry .icon::after {
    width: 50%;
    transform: translate(-50%, -50%) rotate(90deg);
  }
  #menu .menu_wrap .menu_inner .menu_entry .btn_entry.open .icon::before {
    width: 50%;
    transform: translate(-50%, -50%) rotate(90deg);
    opacity: 0;
  }
  #menu .menu_wrap .menu_inner .menu_entry .btn_entry.open .icon::after {
    width: 100%;
    transform: translate(-50%, -50%) rotate(180deg);
  }
  #menu .menu_wrap .menu_inner .menu_entry .btn_entry:first-child {
    margin-bottom: 20px;
  }
  #menu .menu_wrap .menu_inner .menu_entry .menu_newgrad {
    margin-bottom: 20px;
    position: relative;
  }
  #menu .menu_wrap .menu_inner .menu_entry .menu_newgrad a {
    position: relative;
    z-index: 1;
  }
  #menu .menu_wrap .menu_inner .menu_entry .menu_newgrad ul {
    position: relative;
    z-index: 0;
    top: -30px;
    margin-bottom: -30px;
    background-color: var(--color_sub);
    padding: 50px 30px 25px;
    border-radius: 0 0 30px 25px;
    font-size: 1.5rem;
    display: none;
  }
  #menu .menu_wrap .menu_inner .menu_entry .menu_newgrad ul li {
    padding-left: 1.2em;
  }
  #menu .menu_wrap .menu_inner .menu_entry .menu_newgrad ul li:not(:last-child) {
    margin-bottom: 1em;
  }
  #menu .menu_wrap .menu_inner .menu_entry .menu_newgrad ul li a {
    color: var(--color_main);
  }
  #menu .menu_wrap .menu_inner .menu_item {
    grid-area: unset;
    grid-template-columns: 1fr;
    grid-gap: 40px;
    border-top: 1px solid var(--color_white);
    padding: 60px 0;
  }
  #menu .menu_wrap .menu_inner .menu_item > li.internship {
    grid-area: 7/1/8/2;
  }
  #menu .menu_wrap .menu_inner .menu_item > li > .haschild .icon {
    display: initial;
  }
  #menu .menu_wrap .menu_inner .menu_item > li ul {
    display: none;
  }
  #menu .menu_wrap .menu_inner .menu_item2 {
    justify-items: start;
    grid-row-gap: 60px;
  }
  #menu .menu_wrap .menu_inner .menu_item2 ul {
    justify-items: start;
  }
}
@media screen and (max-width: 768px) {
  #header .header {
    width: calc(100% - 40px);
    padding: 30px 0;
  }
  #header .header .header_inner {
    grid-template-columns: 1fr 90px;
    grid-column-gap: 10px;
  }
  #header .header .header_inner .header_logo a {
    grid-template-columns: 1fr;
  }
  #header .header .header_inner .header_logo a img {
    max-width: 220px;
    width: 100%;
  }
  #header .header .header_inner .header_logo a .font_en {
    font-size: 1.2rem;
  }
  #header .header .header_inner .header_btn {
    height: 50px;
  }
}