body {
  @media screen and (max-width: 768px) {
    overflow-x: hidden;
  }

  @media screen and (min-width: 1001px) {
    overflow-x: hidden;
  }
}

@media screen and (min-width: 768px) {
  .l-side-navi {
    position: relative;
    z-index: 999999;
    width: 100%;
    background-color: #fff;
    transition: translate 0.3s linear;
  }

  .l-side-navi-inner {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px 24px;
    position: relative;
  }

  .l-header-upper {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    flex-wrap: nowrap;
    gap: 1rem;
  }

  .top-logo {
    display: block;
    z-index: 9999;
  }

  .mdvebm-logo {
    height: 40px;
    object-fit: contain;
  }

  .l-header-upper-icons {
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    flex-wrap: nowrap;
    width: fit-content;
    height: 24px;
    gap: 10px;

    img {
      height: 24px;
      object-fit: contain;
    }
  }

  .l-g-navi {
    position: relative;
  }

  .l-main-navi {
    display: flex;
    align-items: end;
    justify-content: flex-end;
    flex-wrap: nowrap;
    width: 100%;
    padding-top: 2rem;

    &.l-main-navi--long {
      width: calc(100%);
    }

    a,
    p {
      display: flex;
      align-items: center;
      justify-content: flex-start;
      flex-wrap: nowrap;
      width: fit-content;
      font-size: min(calc(1vw + 4px), 14px);
      line-height: 24px;
      gap: 2px;
      padding: 0 8px;
      cursor: pointer;
    }

    a img {
      height: 1em;
      object-fit: contain;
    }
  }

  .l-navi-conts {
    > a,
    p {
      border-bottom: 2px solid #fff;
      box-sizing: border-box;
      line-height: 1.3;
      text-align: center;
    }

    > p:hover,
    > a:hover,
    > a.active {
      border-bottom: 2px solid #ffa600;
    }
  }

  .l-navi-conts input {
    appearance: none;
    display: none;
  }

  .l-navi-conts > ul {
    z-index: 2;
    opacity: 0;
    visibility: hidden;
    display: grid;
    grid-template-columns: repeat(3, 30%);
    gap: 24px;
    position: absolute;
    top: calc(100% + 1rem);
    left: 0;
    width: 100%;
    padding: 24px 0;
    transition: all 0.3s ease-in-out;
  }

  .l-navi-conts > ul::before {
    z-index: -1;
    position: absolute;
    top: 0;
    left: -50vw;
    width: 150vw;
    height: 100%;
    background-color: #ddd;
    content: "";
  }

  .l-navi-conts:has(ul) {
    a {
      position: relative;
    }

    > a::before {
      opacity: 0;
      transition: opacity 0.3s ease;
      display: block;
      position: absolute;
      bottom: -24px;
      left: 0;
      width: 100%;
      height: 24px;
      content: "";
    }

    > a::after {
      opacity: 0;
      display: block;
      position: absolute;
      bottom: -14px;
      left: calc(50% - 10px);
      width: 20px;
      height: 10px;
      clip-path: polygon(50% 0, 0 100%, 100% 100%);
      background-color: #ddd;
      transition: opacity 0.3s ease;
      content: "";
    }
  }

  .l-navi-conts:has(ul):hover {
    ul {
      opacity: 1;
      visibility: visible;
    }

    > a::before {
      opacity: 1;
    }

    > a::after {
      opacity: 1;
    }
  }

  .l-navi-conts li::after {
    rotate: 45deg;
    display: block;
    position: absolute;
    top: calc(50% - 0.2em);
    right: 5px;
    width: 0.5em;
    height: 0.5em;
    border-top: 2px solid #000;
    border-right: 2px solid #000;
    content: "";
  }

  .l-navi-conts li {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    position: relative;

    a {
      line-height: 1.4;
      display: block;
      padding-right: calc(40px + 0.5em);
      width: 100%;
    }

    a:hover {
      background-color: #fff;
      color: #acacac;
    }
  }

  .l-navi-form {
    a {
      padding: 0 16px;
      margin-left: 8px;
      color: #1b1c85;
      font-weight: bold;
      background-color: #ffa600;
    }

    a::before {
      content: "CONTACT US";
    }
  }

  .l-side-navi--fixed + div {
    padding-top: 154px;
  }

  .l-side-navi--fixed {
    z-index: 999;
    position: fixed;
    top: -160px;
    left: 0;
    transition: top 0.5s ease-in-out;

    .l-side-navi-inner {
      padding: 48px 0 24px;
    }

    .l-header-upper {
      position: absolute;
      top: 30px;
      left: 40px;
    }

    .mdvebm-logo {
      height: 20px;
      margin-left: 1rem;
    }

    .l-header-upper-icons {
      display: none;
    }

    .l-navi-form {
      a {
        height: 24px;
        padding: 8px 8px;
        box-sizing: border-box;
      }

      a::before {
        display: block;
        width: 1em;
        height: 1em;
        background: center / 1.5em 1.5em no-repeat
          url(/ebm/ebm.assets/images/navi_contact.png);
        content: "";
      }

      img {
        display: none;
      }
    }
  }

  .l-side-navi--fixed-show {
    top: 0;
  }

  .hamburger {
    display: none;
  }

  .l-sp-links {
    display: none;
  }
}

@media screen and (max-width: 768px) {
  .nav-open {
    overflow: hidden;
  }

  .l-header-upper {
    z-index: 999;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 56px;
    padding: 12px;
    background-color: #fff;
  }

  .mdvebm-logo {
    height: 32px;
    object-fit: contain;
  }

  .l-header-upper-icons {
    display: none;
  }

  header .hamburger {
    display: block;
    position: absolute;
    left: initial;
    right: 0;
    top: 0;
    width: 56px;
    height: 56px;
    cursor: pointer;
    z-index: 999;
    background-color: #ffffff;
  }

  .hamburger-line {
    position: absolute;
    left: 18px;
    width: 20px;
    height: 1px;
    background-color: #111111;
    transition: all 0.6s;
  }

  .hamburger-line-1 {
    top: 20px;
  }

  .hamburger-line-2 {
    top: 26px;
  }

  .hamburger-line-3 {
    top: 32px;
  }

  .nav-open .hamburger-line-1 {
    transform: rotate(405deg);
    top: 26px;
  }

  .nav-open .hamburger-line-2 {
    width: 0;
    left: 50%;
  }

  .nav-open .hamburger-line-3 {
    transform: rotate(-405deg);
    top: 26px;
  }

  .l-g-navi {
    transition: right 0.2s ease-in-out;
    z-index: 9999;
    overflow-x: hidden;
    overflow-y: auto;
    position: fixed;
    top: 56px;
    right: -352px;
    height: calc(100vh - 56px);
    width: 352px;
    background-color: #fff;
  }

  .nav-open .l-g-navi {
    right: 0;
  }

  .l-main-navi {
    border-top: 1px solid #e6e6eb;
  }

  .l-navi-conts {
    position: relative;

    a,
    p {
      display: flex;
      align-items: center;
      justify-content: flex-start;
      flex-wrap: nowrap;
      width: 100%;
      height: 48px;
      padding: 0 16px 0 12px;
      border-left: 4px solid #fff;
      border-bottom: 1px solid #e6e6eb;
      font-size: 16px;

      span {
        max-width: calc(100% - 15px);
      }
    }

    a:hover {
      border-left: 4px solid #ffa600;
    }

    a::after {
      rotate: 45deg;
      display: inline-block;
      width: 0.5em;
      height: 0.5em;
      margin-left: 8px;
      border-top: 2px solid #000;
      border-right: 2px solid #000;
      content: "";
    }

    input[type="checkbox"] {
      appearance: none;
      display: none;
    }

    input[type="checkbox"] + label {
      display: flex;
      align-items: center;
      justify-content: center;
      flex-wrap: nowrap;
      position: absolute;
      top: 0;
      right: 0;
      width: 48px;
      height: 48px;
      cursor: pointer;
    }

    input[type="checkbox"] + label::after {
      position: absolute;
      width: 1em;
      height: 3px;
      background-color: #000;
      content: "";
    }

    input[type="checkbox"] + label::before {
      visibility: visible;
      position: absolute;
      width: 3px;
      height: 1em;
      background-color: #000;
      content: "";
    }

    input[type="checkbox"]:checked ~ label::before {
      visibility: hidden;
    }

    ul {
      padding-left: 16px;
      overflow: hidden;
      transition: max-height 0.2s ease-out;
      max-height: 0;

      a {
        min-height: 32px;
        font-size: 14px;
        padding: 10px 16px 10px 12px;
        min-height: 48px;
        height: fit-content;
      }
    }

    input[type="checkbox"]:checked ~ ul {
      transition: max-height 0.2s ease-in;
      max-height: 1000px;
    }
  }

  .l-navi-form {
    a {
      display: flex;
      align-items: center;
      justify-content: flex-start;
      flex-wrap: nowrap;
      width: 100%;
      height: 48px;
      padding: 0 16px 0 12px;
      border-left: 4px solid #ffa600;
      border-bottom: 1px solid #e6e6eb;
      font-size: 16px;
      color: #1b1c85;
      background-color: #ffa600;

      img {
        margin-left: 8px;
        height: 1em;
        object-fit: contain;
      }
    }

    a:hover {
      border-left: 4px solid #1b1c85;
    }

    a::before {
      content: "CONTACT US";
    }
  }

  .l-sp-links {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    flex-direction: column;
    flex-wrap: nowrap;
    width: 100%;
    margin: 16px 16px;
    padding-bottom: 120px;

    a {
      display: flex;
      align-items: center;
      justify-content: flex-start;
      flex-wrap: nowrap;
      width: 100%;
      height: 32px;
      font-size: 14px;
      gap: 0 8px;
    }

    a:hover {
      opacity: 0.5;
    }

    img {
      height: 0.9em;
      object-fit: contain;
    }

    img.english {
      filter: grayscale(1);
    }

    img.logo {
      height: 24px;
    }
  }
}

.black-bg {
  display: block;
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100vh;
  z-index: -1;
  background-color: #000000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.6s;
  cursor: pointer;
}

.nav-open .black-bg {
  opacity: 0.8;
  visibility: visible;
}

.l-header-upper-icons .l-main-navi {
  display: block;
  width: auto;
}
.l-header-upper-icons .l-main-navi a {
  margin-left: 0;
}
.l-header-upper-icons a._dl::before {
  content: "DOWNLOAD MATERIALS";
}
.l-side-navi--fixed .l-navi-form a {
  padding: 8px 5px;
}
.l-side-navi--fixed .l-navi-form a._dl::before {
  background: center / 1em 1em no-repeat
    url(/ebm/ebm.assets/images/dl_icon_b.png);
}
.l-g-navi .l-navi-form {
  display: none;
}
.l-side-navi--fixed .l-g-navi .l-navi-form {
  display: block;
}
@media screen and (max-width: 768px) {
  .l-g-navi .l-navi-form {
    display: block;
  }
  .l-navi-form a._dl::before {
    content: "DOWNLOAD MATERIALS";
  }
}

@media screen and (max-width: 1279px) {
  .nav-open .main-box {
    min-width: initial;
    overflow: hidden;
  }
}

@media screen and (min-width: 768px) {
  .nav-open .l-g-navi {
    display: none;
  }

  .l-g-navi .l-main-navi.l-main-navi--long {
    padding-top: 0;
  }

  .l-side-navi--fixed.l-side-navi--fixed-show .l-header-upper {
    position: initial;
  }

  .l-side-navi--fixed.l-side-navi--fixed-show .l-side-navi-inner {
    display: flex;
    max-width: 1280px;
    margin: 0 auto;
    justify-content: space-between;
    padding: 24px 40px;
  }

  .nav-open .l-side-navi--fixed-show .l-g-navi {
    display: block;
  }

  .nav-open .l-side-navi {
    z-index: 9995;
  }

  .l-side-navi .l-navi-conts a {
    padding: 0 2px;
    font-size: 79%;
  }

  .nav-open .l-side-navi-inner {
    z-index: 9999;
    background: #fff;
  }

  .nav-open .l-side-navi-inner:before,
  .nav-open .l-side-navi-inner:after {
    content: "";
    display: block;
    position: absolute;
    top: 0;
    background: #fff;
    width: 50vw;
    height: 100%;
    z-index: -1;
  }

  .nav-open .l-side-navi-inner:before {
    left: -60%;
  }

  .nav-open .l-side-navi-inner:after {
    right: -60%;
  }
}

.l-g-navi .l-main-navi.l-main-navi--long {
  gap: 0.8vw;
  padding-top: 2rem;
}

.l-side-navi--fixed.l-side-navi--fixed-show .l-main-navi--long {
  background: #fff;
  gap: 3px;
  padding-top: 0;
  padding-bottom: 4px;
}

.l-side-navi--fixed.l-side-navi--fixed-show .l-side-navi-inner {
  padding: 18px 0 47px;
  gap: 6px;
}

.l-side-navi--fixed.l-side-navi--fixed-show
  .l-side-navi-inner
  .l-navi-conts
  > ul {
  top: calc(100% + 0.74rem);
}

.l-side-navi--fixed.l-side-navi--fixed-show .l-side-navi-inner .l-g-navi {
  position: absolute;
  width: 100%;
  margin-top: 0;
}

.l-navi-conts > .navi-parent .parent .list-head:first-of-type {
  display: none;
}

.l-navi-conts > .navi-parent .parent::after {
  display: none;
}

.l-navi-conts > .navi-parent .parent .list-head::after {
  rotate: 45deg;
  display: block;
  position: absolute;
  top: calc(50% - 0.6em);
  right: 5px;
  width: 0.5em;
  height: 0.5em;
  border-top: 2px solid #000;
  border-right: 2px solid #000;
  content: "";
}

@media screen and (min-width: 768px) {
  .l-main-navi {
    gap: 8px;
  }

  .l-navi-conts > .navi-parent,
  .l-navi-conts > .navi-parent .parent {
    display: block;
  }

  .l-navi-conts > .navi-parent .parent .list-head,
  .l-navi-conts > .navi-parent .parent .list-head a {
    font-size: 2rem;
    align-items: center;
    font-weight: bold;
    margin-top: 2rem;
  }

  .l-navi-conts > .navi-parent .parent .list-head:first-of-type {
    display: flex;
    margin-top: 0;
  }

  .l-navi-conts > .navi-parent .parent .list-head.no-link {
    align-items: center;
  }

  .l-navi-conts > .navi-parent .parent .list-head.no-link:after {
    content: "";
    display: block;
    align-items: center;
    position: static;
    flex-grow: 1;
    height: 1px;
    background: #000;
    rotate: none;
    margin-left: 2rem;
  }

  .l-navi-conts > .navi-parent .navi-children {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    padding: 0;
    gap: 24px;
    margin-top: 18px;
    width: 100%;
    transition: all 0.3s ease-in-out;
    position: initial;
  }
}

@media screen and (max-width: 768px) {
  .l-navi-conts > .navi-parent {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .l-navi-conts input[type="checkbox"]:checked ~ .navi-parent {
    max-height: 1000px;
  }

  .l-navi-conts .navi-parent .navi-children {
    max-height: none;
  }

  .l-navi-conts > .navi-parent .parent .list-head:first-of-type {
    display: flex;
  }

  .l-navi-conts > .navi-parent .parent .list-head a {
    font-weight: bold;
  }

  .l-navi-conts > .navi-parent .parent .list-head::after {
    display: none;
  }

  .l-g-navi .l-navi-conts > .navi-parent .parent .no-link {
    display: flex;
  }

  .l-g-navi .l-navi-conts > .navi-parent .parent .no-link.first-head {
    display: none;
  }

  .l-main-navi,
  .l-side-navi--fixed.l-side-navi--fixed-show .l-main-navi--long {
    display: block;
  }

  .l-main-navi {
    padding-top: 2rem;
  }

  .l-side-navi--fixed.l-side-navi--fixed-show .l-side-navi-inner {
    padding: 0;
  }

  .l-side-navi--fixed.l-side-navi--fixed-show .l-side-navi-inner .l-g-navi {
    position: fixed;
    width: 352px;
    margin-top: 0;
  }
}

body header:not(.l-side-navi--fixed) {
  height: auto;
}

.top-contantes-section.animated {
  width: 100%;
  overflow-x: hidden;
}

@media screen and (max-width: 1000px) {
  .l-main-navi {
    padding-top: 0.7rem;
    background: #fff;
    padding-bottom: 0.3rem;
  }
}

@media screen and (max-width: 1000px) and (min-width: 768px) {
  .l-side-navi--fixed .l-g-navi {
    display: block;
  }

  .l-navi-conts > .navi-parent .navi-children {
    display: block;
  }

  .l-side-navi .l-navi-conts a {
    border-left: none;
  }
}

.l-side-navi--fixed-show .multi-modal-ctrl .choice-login,
.l-side-navi--fixed-show .navi-mypage .logged-in,
header .multi-modal-ctrl svg,
header .mypage-btn svg {
  display: none;
}

.l-side-navi--fixed-show .l-main-navi .l-navi-conts .multi-modal-ctrl svg,
.l-side-navi--fixed-show .l-main-navi .l-navi-conts .mypage-btn svg {
  display: block;
  position: initial;
  top: initial;
  right: initial;
}

.multi-modal-ctrl svg rect,
.mypage-btn svg rect {
  fill: #1b1c85;
}

.multi-modal-ctrl svg path,
.mypage-btn svg path {
  fill: #fff;
}

.l-side-navi--fixed.l-side-navi--fixed-show .navi-news {
  order: 1;
}

.l-side-navi--fixed.l-side-navi--fixed-show .navi-about {
  order: 2;
}

.l-side-navi--fixed.l-side-navi--fixed-show .navi-service {
  order: 3;
}

.l-side-navi--fixed.l-side-navi--fixed-show .navi-database {
  order: 4;
}

.l-side-navi--fixed.l-side-navi--fixed-show .navi-studies {
  order: 5;
}

.l-side-navi--fixed.l-side-navi--fixed-show .navi-reference {
  order: 5;
}

.l-side-navi--fixed.l-side-navi--fixed-show .navi-publication {
  order: 6;
}

.l-side-navi--fixed.l-side-navi--fixed-show .navi-column {
  order: 7;
}

.l-side-navi--fixed.l-side-navi--fixed-show .navi-video {
  order: 8;
}

.l-side-navi--fixed.l-side-navi--fixed-show .navi-care {
  order: 9;
}

.l-side-navi--fixed.l-side-navi--fixed-show .navi-search {
  order: 10;
}

.l-side-navi--fixed.l-side-navi--fixed-show .navi-mypage {
  order: 11;
}

.l-side-navi--fixed.l-side-navi--fixed-show .navi-mypage a {
  border: none;
  margin-left: 2px;
  margin-right: -3px;
  margin-bottom: 0px;
}

.l-side-navi--fixed.l-side-navi--fixed-show .navi-form-icon {
  order: 12;
}

.l-side-navi--fixed.l-side-navi--fixed-show .navi-dl {
  order: 13;
}

@media screen and (max-width: 768px) {
  header .top-logo {
    margin-left: initial;
  }
}

header.l-side-navi .navi-news ul li a svg,
header.l-side-navi .navi-about ul li a svg,
header.l-side-navi .navi-service ul li a svg,
header.l-side-navi .navi-database ul li a svg,
header.l-side-navi .navi-studies ul li a svg,
header.l-side-navi .navi-reference ul li a svg,
header.l-side-navi .navi-publication ul li a svg,
header.l-side-navi .navi-column ul li a svg,
header.l-side-navi .navi-video ul li a svg,
header.l-side-navi .navi-care ul li a svg {
  display: inline;
  position: absolute;
  top: -0.3rem;
  right: -3.685rem !important;
}

header.l-side-navi--fixed-show .l-main-navi .l-navi-conts.navi-news ul li a svg,
header.l-side-navi--fixed-show
  .l-main-navi
  .l-navi-conts.navi-about
  ul
  li
  a
  svg,
header.l-side-navi--fixed-show
  .l-main-navi
  .l-navi-conts.navi-service
  ul
  li
  a
  svg,
header.l-side-navi--fixed-show
  .l-main-navi
  .l-navi-conts.navi-database
  ul
  li
  a
  svg,
header.l-side-navi--fixed-show
  .l-main-navi
  .l-navi-conts.navi-studies
  ul
  li
  a
  svg,
header.l-side-navi--fixed-show
  .l-main-navi
  .l-navi-conts.navi-reference
  ul
  li
  a
  svg,
header.l-side-navi--fixed-show
  .l-main-navi
  .l-navi-conts.navi-publication
  ul
  li
  a
  svg,
header.l-side-navi--fixed-show
  .l-main-navi
  .l-navi-conts.navi-column
  ul
  li
  a
  svg,
header.l-side-navi--fixed-show
  .l-main-navi
  .l-navi-conts.navi-video
  ul
  li
  a
  svg,
header.l-side-navi--fixed-show
  .l-main-navi
  .l-navi-conts.navi-care
  ul
  li
  a
  svg {
  position: absolute;
  top: -0.3rem;
  right: -3.685rem;
}

header .black-bg-keyword {
  width: 100%;
  height: 100vh;
  position: absolute;
  background: #000;
  opacity: 0.8;
  z-index: -1;
  top: calc(100% + 0.05rem);
}

@media screen and (max-width: 1440px) {
  .nav-open .l-side-navi-inner:before {
    left: -50%;
  }

  .nav-open .l-side-navi-inner:after {
    right: -50%;
  }
}

@media screen and (max-width: 768px) and (min-width: 500px) {
  .nav-open .l-g-navi {
    display: block;
    top: 23rem;
  }

  .l-g-navi .l-main-navi.l-main-navi--long {
    padding-top: 0;
  }
}

.l-navi-conts > .navi-parent .parent {
  margin-top: 2rem;
}

.l-navi-conts > .navi-parent .parent:first-of-type {
  margin-top: 0;
}

@media screen and (max-width: 768px) {
  header.l-side-navi .navi-service ul li a svg,
  header.l-side-navi .navi-database ul li a svg {
    right: -5.685rem !important;
  }
}

header .black-bg {
  display: block;
}

header .list-head.no-link.gray-out {
  color: #9e9e9e;
}

.l-navi-conts > .navi-parent .parent .list-head.no-link.gray-out::after {
  border-top: 2px solid #9e9e9e;
}

.l-navi-conts > .navi-parent .navi-children.gray-out {
  columns: #9e9e9e;
}

.l-side-navi .l-navi-conts a.gray-out  {
  color: #9e9e9e;
  pointer-events: none;
  cursor: none;
}

.l-side-navi .l-navi-conts .list-gray-out::after {
  border-top: 2px solid #9e9e9e;
  border-right: 2px solid #9e9e9e;
}