@charset "UTF-8";

:root {
  --block-bg-color: rgba(180, 180, 180, 0.25);
}

body {
  background-color: #000;
  font-family: "Noto Serif JP", serif;
}

p,
h1,
h2,
h3,
h4,
ul,
li {
  color: #fff;
}

h2 {
  font-size: 30px;
}

h3 {
  font-size: 24px;
}

main {
  margin-bottom: 70px;
}

.language {
  display: flex;
  justify-content: end;
  font-size: 0.8rem;
}

.language a {
  color: #E63383;
}

.rightbottom-box {
  color: #fff;
  position: fixed;
  bottom: 27px;
  right: 16px;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 100;
}

.fa-circle-arrow-up {
  font-size: 40px;
  color: #fff;
}

.header {
  width: 100%;
  background-color: #000;
  border-bottom: 1px #D9D9D9 solid;
  padding: 0.5rem 0;
  position: sticky;
  top: 0;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  z-index: 100;
  transition: all 0.3s ease;
}

.header.not-sticky {
  position: static;
}

.header-area {
  max-width: 1070px;
  width: 100%;
  margin: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.blackomega-logo-1 {
  width: 110px;
}

.blackomega-logo-1 img {
  width: 100%;
  height: auto;
}

.header-nav {
  width: 100%;
}

#menu-content {
  display: flex;
  justify-content: center;
  list-style: none;
  padding: 0;
  margin: 0;
}

#menu-content>li {
  position: relative;
}

#menu-content>li>a {
  display: block;
  padding: 15px;
  color: #fff;
  text-decoration: none;
  transition: background-color 0.3s;
}

#menu-content>li>a:hover {
  background-color: #333;
}

.second-content {
  display: none !important;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: #000;
  min-width: 210px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.accordion-content .second-content.show {
  display: block !important;
  padding: 0;
}

.second-content li {
  list-style: none;
}

.second-content li a {
  display: block;
  padding: 10px 15px;
  color: #fff;
  text-decoration: none;
  transition: background-color 0.3s;
}

.second-content li a:hover {
  background-color: #333;
}

.fa-angle-down {
  margin-left: 5px;
  color: #F9D76A;
  text-shadow: 1px 1px 1px #777;
}

.toggle_btn,
.close-btn {
  display: none;
  cursor: pointer;
}

#mask {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 98;
}

@media (max-width: 600px) {
  .header {
    flex-direction: column;
    align-items: flex-start;
  }

  .header-area {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding-left: 10px;
  }

  .blackomega-logo-1 {
    margin-bottom: 0;
  }

  .header-nav {
    position: fixed;
    top: 0;
    left: -100%;
    width: 80%;
    height: 100%;
    background-color: #000;
    transition: all 0.3s;
    z-index: 99;
  }

  .header-nav.open {
    left: 0;
  }

  #menu-content {
    flex-direction: column;
    align-items: center;
  }

  #menu-content>li>a {
    padding: 20px;
    border-bottom: 1px solid #333;
  }

  .second-content {
    display: none;
    position: relative;
    top: 0;
    left: 0;
    width: 100%;
  }

  .second-content.open {
    display: block;
  }

  .toggle_btn {
    display: block;
    position: relative;
    width: 30px;
    height: 30px;
  }

  .toggle_btn span {
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #fff;
    transition: all 0.3s;
  }

  .toggle_btn span:nth-child(1) {
    top: 4px;
  }

  .toggle_btn span:nth-child(2) {
    top: 14px;
  }

  .toggle_btn span:nth-child(3) {
    bottom: -6px;
  }

  .close-btn {
    display: block;
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 24px;
    color: #fff;
    background: none;
    border: none;
  }

  #mask.visible {
    display: block;
  }

  .second-content.show {
    display: block;
  }
}

@media screen and (min-width:601px) and (max-width:999px) {
  .header {
    flex-direction: column;
    align-items: flex-start;
  }

  .header-area {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding-left: 10px;
  }

  .blackomega-logo-1 {
    margin-bottom: 0;
  }

  .header-nav {
    position: fixed;
    top: 0;
    left: -100%;
    width: 80%;
    height: 100%;
    background-color: #000;
    transition: all 0.3s;
    z-index: 99;
  }

  .header-nav.open {
    left: 0;
  }

  #menu-content {
    flex-direction: column;
    align-items: center;
  }

  #menu-content>li>a {
    width: 168px;
    padding: 20px;
    border-bottom: 1px solid #333;
  }

  .second-content {
    display: none;
    position: relative;
    top: 0;
    left: 0;
    width: 100%;
  }

  .second-content.open {
    display: block;
  }

  .toggle_btn {
    display: block;
    position: relative;
    width: 30px;
    height: 30px;
  }

  .toggle_btn span {
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #fff;
    transition: all 0.3s;
  }

  .toggle_btn span:nth-child(1) {
    top: 4px;
  }

  .toggle_btn span:nth-child(2) {
    top: 14px;
  }

  .toggle_btn span:nth-child(3) {
    bottom: -6px;
  }

  .close-btn {
    display: block;
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 24px;
    color: #fff;
    background: none;
    border: none;
  }

  #mask.visible {
    display: block;
  }

  .second-content.show {
    display: block;
  }
}

@media (max-width: 600px) {
  .second-content {
    display: none;
    position: relative;
    top: 0;
    left: 0;
    width: 100%;
  }

  .second-content.open {
    display: block;
    height: auto;
  }

  .toggle_btn {
    display: block;
    position: relative;
    width: 30px;
    height: 30px;
    top: -4px;
    cursor: pointer;
    justify-content: space-between;
    z-index: 100;
    top: 0;
    right: 40px;
    width: 30px;
    height: 25px;
  }

  .toggle_btn span {
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #fff;
    transition: all 0.3s;
  }

  .toggle_btn span:nth-child(1) {
    top: 4px;
  }

  .toggle_btn span:nth-child(2) {
    top: 14px;
  }

  .toggle_btn span:nth-child(3) {
    bottom: -2px;
  }

  .toggle_btn span {
    display: block;
    background: #fff;
    border-radius: 3px;
    transition: all 0.3s ease;
  }

  .toggle_btn.open span:nth-child(1) {
    transform: rotate(45deg);
    transform-origin: top left;
    width: 100%;
  }

  .toggle_btn.open span:nth-child(2) {
    opacity: 0;
  }

  .toggle_btn.open span:nth-child(3) {
    transform: rotate(-45deg);
    transform-origin: bottom left;
    width: 100%;
  }

  #mask.visible {
    display: block;
  }

  .second-content.show {
    display: block;
  }
}

@media screen and (min-width:601px) and (max-width:999px) {
  .second-content {
    display: none;
    position: relative;
    top: 0;
    left: 0;
    width: 100%;
  }

  .second-content.open {
    display: block;
    height: auto;
  }

  .toggle_btn {
    display: block;
    position: relative;
    width: 30px;
    height: 30px;
    top: -4px;
    cursor: pointer;
    justify-content: space-between;
    z-index: 100;
    top: 0;
    right: 40px;
    width: 30px;
    height: 25px;
  }

  .toggle_btn span {
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #fff;
    transition: all 0.3s;
  }

  .toggle_btn span:nth-child(1) {
    top: 4px;
  }

  .toggle_btn span:nth-child(2) {
    top: 14px;
  }

  .toggle_btn span:nth-child(3) {
    bottom: -2px;
  }

  .toggle_btn span {
    display: block;
    background: #fff;
    border-radius: 3px;
    transition: all 0.3s ease;
  }

  .toggle_btn.open span:nth-child(1) {
    transform: rotate(45deg);
    transform-origin: top left;
    width: 100%;
  }

  .toggle_btn.open span:nth-child(2) {
    opacity: 0;
  }

  .toggle_btn.open span:nth-child(3) {
    transform: rotate(-45deg);
    transform-origin: bottom left;
    width: 100%;
  }

  #mask.visible {
    display: block;
  }

  .second-content.show {
    display: block;
  }
}

.title {
  text-align: center;
  margin: 80px 0;
}


.footer {
  background-color: #000;
  padding: 33px 0;
}

.copyright {
  margin-top: 31px;
  color: #fff;
  text-align: center;
}

.footer05 {
  color: #808080;
  padding: 30px;
  border-top: #fff solid 1px;
}

.footer05 a {
  color: #ffffff;
  text-decoration: none;
  font-weight: 300;
}

.footer05 h3 {
  color: #ffffff;
  font-weight: 300;
}

.footer05 li a:hover {
  text-decoration: underline;
}

.footer05 li {
  list-style: none;
}

.footer05 .wrap {
  width: 900px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
}

.footer05 .wrap h3 {
  margin: 0 0 10px 0;
  padding: 0;
  border-bottom: 1px #c4c4c4 solid;
}

.footer05 .wrap p {
  margin: 0;
  padding: 0 0 20px 0;
}

.footer05 .wrap .box {
  width: 22%;
}

.footer05 .wrap .box ul {
  margin: 0;
  padding: 0px 0 20px 2rem;
  list-style: none;
  text-indent: -2rem;
}

.footer05 .wrap .copyright {
  width: 100%;
  padding: 20px 0 0 0;
}

@media screen and (max-width: 599px) {
  h1 {
    font-size: 22px;
  }

  h2 {
    font-size: 20px;
  }

  h3 {
    font-size: 18px;
  }

  h4 {
    font-size: 16px;
  }

  .header-nav {
    width: 100%;
  }

  .header-nav.open {
    left: 0;
    opacity: 1;
    overflow-y: auto;
    overflow-x: hidden;
    max-height: 630px;
  }

  #menu-content>li>a {
    padding: 18px 20px;
    width: 200px;
    text-align: center;
  }

  .inner {
    padding: 25px 45px;
  }

  .inner ul {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .inner ul li {
    position: relative;
    margin: 0;
  }

  .inner ul li a {
    display: block;
    color: #fff;
    font-size: 14px;
    text-decoration: none;
    transition-duration: 0.2s;
  }

  .language {
    justify-content: center;
  }


  .blackomega-logo-1 {
    width: 25%;
  }

  .footer05 .wrap {
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
  }

  .footer05 .wrap h3 {
    border: none;
  }

  .footer05 .wrap .box {
    width: 100%;
  }

  .footer05 .wrap .box ul {
    border-top: 1px #c4c4c4 solid;
  }

  .footer05 .wrap .box ul li a {
    display: block;
    padding: 5px 15px;
  }
}

@media screen and (max-width:768px) {
  .header-nav {
    padding: 0;
  }

  .header-nav ul {
    display: block;
  }

  .header-nav li.has-child ul,
  .header-nav li.has-child ul ul {
    position: relative;
    left: 0;
    top: 0;
    width: 100%;
    visibility: visible;
    opacity: 1;
    display: none;
    transition: none;
  }

  .header-nav ul li a {
    border-bottom: 1px solid #838383;
    text-align: center;
  }

  .header-nav ul li.has-child::before {
    left: 20px;
  }

  .header-nav ul ul li.has-child::before {
    transform: rotate(135deg);
    left: 20px;
  }

  .header-nav ul li.has-child.active::before {
    transform: rotate(-45deg);
  }

}

@media screen and (max-width: 960px) and (min-width: 600px) {
  .header-nav {
    width: 100%;
  }

  .toggle_btn {
    top: 2px;
    right: 64px;
  }

  .toggle_btn span:nth-child(3) {
    bottom: -1px;
  }

  .header-nav.open {
    left: 0;
    opacity: 1;
  }

  .inner {
    padding: 66px;
  }

  .inner ul {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .inner ul li {
    position: relative;
    margin: 0;
  }

  .inner ul li a {
    display: block;
    color: #fff;
    font-size: 14px;
    text-decoration: none;
    transition-duration: 0.2s;
  }

  .footer05 .wrap {
    max-width: 530px;
  }

  .footer05 .wrap h3 {
    font-size: 16px;
  }
}

@media screen and (min-width:375px) and (max-width:430px) {
  h2 {
    font-size: 22px;
  }

  h3 {
    font-size: 20px;
  }

  p {
    font-size: 14px;
  }

  .second-content li a br {
    display: none;
  }
}