a:link,
  a:visited,
  a:hover,
  a:active {
    color: inherit;
  }

  h1 {
    line-height: inherit;
    text-align: inherit;
  }

  h3 {
    font-size: inherit;
  }

  header {
    line-height: 1;
    font-family: "ヒラギノ角ゴ ProN", "Hiragino Kaku Gothic ProN", "メイリオ", Meiryo, Helvetica, sans-serif;
    color: #333;
    font-size: 16px;
    background-repeat: no-repeat;
    letter-spacing: 0;
  }


  /*------- cmn CSS 影響回避用 -------*/

  footer a:link {
    color: #004386;
    text-decoration: none;
  }

  footer a:visited {
    color: #004386;
    text-decoration: none;
  }

  footer a:hover {
    color: #004386;
    text-decoration: none;
  }

  footer a:active {
    color: #004386;
    text-decoration: none;
  }

  footer .section {
    padding: 0 !important;
  }

  footer {
    letter-spacing: 0 !important;
  }

  /*------- /cmn CSS 影響回避用 -------*/

  .naviBox {
    top: 0;
  }

  .closeButton a {
    white-space: nowrap;
  }

  .selectLanguage a {
    color: #0e367d;
  }

  *,
  *:before,
  *:after {
    box-sizing: border-box;
  }

  body {
    margin: 0;
  }

  ul,
  ol {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  a {
    color: inherit;
    text-decoration: inherit;
  }

  a.link.blank::after{
    content: '';
    display: inline-block;
    width: 12px;
    height: 12px;
    mask-image: url(/content/dam/nttcom/img/external-link-icon-red.svg);
    mask-size: contain;
    mask-repeat: no-repeat;
    mask-position: center;
    background-color: var(--dRed);
    margin-left: 0.2em;
  }

  figure {
    margin: 0;
  }

  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    margin: 0;
  }

  body {
    font-size: 16px;
    font-family: "ヒラギノ角ゴ ProN", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "メイリオ", Meiryo, Helvetica, sans-serif;
    color: #000000;
    line-height: 1.625;
    background-image: none;
    -webkit-font-smoothing: antialiased;
  }

  body {
    width: 100%;
  }

  .sp-only {
    display: block;
  }

  .pc-only {
    display: none;
  }

  .sp-br {
    display: inline;
  }

  .pc-br {
    display: none;
  }

  table {
    border-collapse: collapse;
    border-spacing: 0;
    margin-bottom: 30px;
}
table th, table td {
    border: 1px solid #ccc;
    padding: 15px;
    vertical-align: top;
    text-align: left;
    font-weight: normal;
}
@media (768px >=width) {
table td{
    padding: 4px;
}
}

  @media screen and (min-width: 769px) {
    .sp-only {
      display: none;
    }

    .pc-only {
      display: block;
    }

    .sp-br {
      display: none;
    }

    .pc-br {
      display: inline;
    }
  }

  img {
    max-width: 100%;
  }

  /* content */
  .content p {
    font-size: 12px;
  }

  @media screen and (min-width: 768px) {
    .content p {
      font-size: 15px;
    }
  }

  .content__title {
    border-bottom: 1px solid var(--dRed);
    color: var(--dRed);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.04em;
    padding: 0 0 10px;
    margin: 0 0 15px;
  }

  @media screen and (min-width: 768px) {
    .content__title {
      font-size: 18px;
      margin: 0 0 30px;
    }
  }

  /* section */
  .section {
    padding: 30px 20px;
  }

  @media screen and (min-width: 768px) {
    .section {
      padding: 60px 20px;
    }
  }

  @media screen and (min-width: 769px) {
    .section .inner {
      width: 1000px;
      margin-left: auto;
      margin-right: auto;
    }
  }

  .section__box {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0px 10px 30px rgba(0, 0, 0, 0.05);
    padding: 30px 20px;
  }

  @media screen and (min-width: 768px) {
    .section__box {
      padding: 60px;
    }
  }

  .section__header {
    margin: 0 0 15px;
  }

  @media screen and (min-width: 768px) {
    .section__header {
      margin: 0 0 30px;
    }
  }

  .section__sub {
    color: #FECE2B;
    font-size: 14px;
    font-style: italic;
    font-family: "Roboto", sans-serif;
    font-weight: bold;
    letter-spacing: 0.04em;
    margin: 0 0 12px;
  }

  @media screen and (min-width: 768px) {
    .section__sub {
      font-size: 24px;
      margin: 0 0 0px;
    }
  }

  .section__heading {
    font-size: 17px;
    font-weight: 700;
    letter-spacing: 0.07em;
  }

  @media screen and (min-width: 768px) {
    .section__heading {
      font-size: 30px;
    }
  }


  /* keyvisual */
  .keyvisual {
    height: calc(100vh - 69px);
    min-height: 600px;
    width: 100%;
    position: relative;
  }

  @media screen and (min-width: 768px) {
    .keyvisual {
      height: calc(100vh - 86px);
    }
  }

  .keyvisual:after {
    background: url("/content/dam/nttcom/hq/jp/about-us/technology-strategy/img/kv.png") 0 0 no-repeat;
    background-size: cover;
    content: "";
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
  }

  .keyvisual__supplement {
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    text-align: center;
    letter-spacing: 0.1em;
    position: absolute;
    top: 40px;
    left: 0;
    right: 0;
  }

  @media screen and (min-width: 768px) {
    .keyvisual__supplement {
      left: auto;
      right: 20px;
    }
  }

  .keyvisual .keyvisual__inner {
    position: absolute;
    top: 25%;
    width: 100%;
    transform: translate(0, -25%);
  }

  @media screen and (min-width: 768px) {
    .keyvisual .keyvisual__inner {
      top: 30%;
      transform: translate(0, -30%);
    }
  }

  .keyvisual__header {
    text-align: center;
  }

  .keyvisual__heading {
    padding: 0 20px;
  }

  /* menu */
  .site-menu {
    background-color: #fff;
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 100;
  }

  .main-menu {
    padding: 0 20px;
  }

  @media screen and (min-width: 769px) {
    .main-menu__list {
      width: 1000px;
      margin: 0 auto;
      display: flex;
      justify-content: space-around;
    }
  }

  .main-menu__item {
    border-bottom: 1px solid #E5E5E5;
    text-align: center;
  }

  .main-menu__item a {
    display: block;
    transition: 0.5s opacity;
    color: #000;
    font-size: 12px;
    font-weight: 700;
    padding: 24px 0;
    line-height: 1.6;
    letter-spacing: 0.07em;
  }

  .main-menu__item a:hover {
    opacity: 0.6;
  }

  .main-menu__item em {
    color: #05327D;
    font-size: 20px;
    font-style: italic;
    font-weight: bold;
    font-family: "Roboto", sans-serif;
    letter-spacing: 0.04em;
  }

  .main-menu__item:last-of-type {
    border: 0;
  }

  @media screen and (min-width: 768px) {
    .main-menu__item {
      border: 0;
      width: 100%;
      padding: 27px 0 40px;
    }

    .main-menu__item a {
      border-right: 1px solid #E5E5E5;
      padding: 0;
    }

    .main-menu__item:last-of-type a {
      border: 0;
    }
  }

  /* introduction */
  .introduction .section__heading {
    color: #fff;
    letter-spacing: 0;
  }

  @media screen and (min-width: 768px) {
    .introduction .section__heading {
      letter-spacing: 0.05em;
    }
  }

  .introduction__content .content__title {
    border: none;
    line-height: 1.78;
    padding: 0;
  }

  @media screen and (min-width: 768px) {
    .introduction__content .content__title {
      letter-spacing: 0.1em;
    }
  }

  .introduction__content p {
    line-height: 1.8;
    margin: 0 0 15px;
  }

  @media screen and (min-width: 768px) {
    .introduction__content p {
      margin: 0 0 20px;
    }
  }

  .introduction__content p.introduction__small {
    font-size: 10px;
    margin: 0 0 10px;
  }

  @media screen and (min-width: 768px) {
    .introduction__content p.introduction__small {
      font-size: 12px;
      margin: 0 0 15px;
    }
  }

  .introduction__content a {
    color: #053079;
    text-decoration: underline;
    transition: 0.3s;
    word-break: break-all;
  }

  @media screen and (min-width: 768px) {
    .introduction__content a:hover {
      text-decoration: none;
    }
  }

  .introduction__content span {
    color: #D53943;
  }

  /* future */
  .future {
    background-color: #fff;
  }

  .future .future-btn {
    margin-top: 20px;
    transition: 0.5s opacity;
  }

  @media screen and (min-width: 768px) {
    .future .future-btn {
      margin-top: 40px;
    }
  }

  .future .future-btn:hover {
    opacity: 0.6;
  }

  @media screen and (min-width: 768px) {
    .future .future-btn {
      width: 550px;
      margin-left: auto;
      margin-right: auto;
    }
  }

  .future .future-btn a {
    display: block;
    padding: 16px 0 20px;
    background-color: #05317A;
    border-radius: 100px;
    color: white;
    text-align: center;
    line-height: 1.6;
    letter-spacing: 0.07em;
    font-size: 11px;
    font-weight: bold;
  }

  @media screen and (min-width: 768px) {
    .future .future-btn a {
      font-size: 13px;
      padding: 19px 0 24px;
    }
  }

  .future .future-btn em {
    color: #FFCA36;
    font-style: italic;
    font-family: "Roboto", sans-serif;
    font-weight: bold;
    font-size: 20px;
  }

  @media screen and (min-width: 768px) {
    .future .future-btn em {
      font-size: 24px;
    }
  }

  .future .section__sub {
    color: #0F398D;
    font-size: 14px;
  }

  @media screen and (min-width: 768px) {
    .future .section__sub {
      font-size: 24px;
      margin: 0;
    }
  }

  .future .section__heading {
    color: #000;
  }

  .future .section__content {
    background: #EFF5FE;
    padding: 30px 20px;
    border-radius: 8px;
  }

  @media screen and (min-width: 768px) {
    .future .section__content {
      padding: 60px;
    }
  }

  .future .profile {
    background-color: #fff;
    box-shadow: 2px 2px 16px rgba(80, 80, 80, 0.1);
    border-radius: 8px;
    padding: 30px 20px;
    margin: 0 0 20px;
  }

  @media screen and (min-width: 768px) {
    .future .profile {
      display: flex;
      justify-content: space-between;
      padding: 40px 50px;
      margin: 0 0 40px;
    }
  }

  .future .profile-image {
    margin: 0 auto 20px;
    width: 140px;
  }

  @media screen and (min-width: 768px) {
    .future .profile-image {
      flex-shrink: 0;
      width: 160px;
    }
  }

  @media screen and (min-width: 768px) {
    .future .profile-info {
      margin: 0 0 0 40px;
    }
  }

  .future .profile-info__header {
    border-bottom: 1px solid #E5E5E5;
    padding: 0 0 15px;
    margin: 0 0 15px;
  }

  @media screen and (min-width: 768px) {
    .future .profile-info__header {
      padding: 0 0 20px;
      margin: 0 0 20px;
    }
  }

  .future .profile-info__header .-name {
    color: #05327D;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.07em;
    margin: 0 0 10px;
  }

  @media screen and (min-width: 768px) {
    .future .profile-info__header .-name {
      font-size: 20px;
      margin: 0 0 15px;
    }
  }

  .future .profile-info__header .-post {
    font-size: 10px;
    line-height: 1.8;
  }

  @media screen and (min-width: 768px) {
    .future .profile-info__header .-post {
      font-size: 12px;
    }
  }

  .future .profile-info__overview {
    font-size: 12px;
    line-height: 1.8;
  }

  @media screen and (min-width: 768px) {
    .future .profile-info__overview {
      font-size: 14px;
    }
  }

  @media screen and (min-width: 768px) {
    .future .content-outline {
      padding: 0 0 50px;
    }
  }

  @media screen and (min-width: 768px) {
    .future .content-outline {
      padding: 0;
    }
  }

  .future .content-outline>p {
    color: #000;
    margin: 0 0 15px;
  }

  @media screen and (min-width: 768px) {
    .future .content-outline>p {
      line-height: 1.8;
      margin: 0 0 20px;
    }
  }

  .challenge .section__heading {
    color: #fff;
  }

  .challenge-header {
    color: #013364;
  }

  .challenge-sub {
    font-size: 12px;
    font-family: "Roboto", sans-serif;
    background: #013364;
    color: #fff;
    padding: 0.75em 1em;
    border-radius: 2em;
    display: inline-block;
    line-height: 1;
  }

  @media screen and (min-width: 768px) {
    .challenge-sub {
      margin: 0 0 20px;
    }
  }

  .challenge-new {
    font-style: normal;
    font-weight: bold;
    color: #FFFFFF;
    background-color: #FF0000;
  }

  .challenge-heading {
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.02em;
    margin: 0 0 20px;
    padding-left: 25px;
    position: relative;
    color: var(--dRed);
  }

  @media screen and (min-width: 768px) {
    .challenge-heading {
      font-size: 22px;
      letter-spacing: 0.04em;
      padding: 0;
      margin: 0 0 40px;
    }
  }

  .challenge-number {
    background-color: var(--dRed);
    border-radius: 50%;
    display: inline-block;
    color: #fff;
    font-size: 13px;
    font-family: "Roboto", sans-serif;
    font-weight: bold;
    text-align: center;
    line-height: 20px;
    height: 20px;
    width: 20px;
    position: absolute;
    top: 0;
    left: 0;
  }

  @media screen and (min-width: 768px) {
    .challenge-number {
      font-size: 20px;
      line-height: 30px;
      margin-right: 10px;
      height: 30px;
      width: 30px;
      position: static;
    }
  }

  .content-challenge {
    margin: 0 0 20px;
  }

  .challenge-content>p {
    line-height: 1.8;
    margin: 0 0 20px;
  }

  @media screen and (min-width: 768px) {
    .challenge-content>p {
      margin: 0 0 40px;
    }
  }

  .challenge-content>p:last-child {
    margin: 0;
  }

  .challenge-content a {
    color: var(--dRed);
    text-decoration: underline;
    transition: 0.3s;
  }

  @media screen and (min-width: 768px) {
    .challenge-content a:hover {
      text-decoration: none;
    }
  }

  @media screen and (min-width: 769px) {
    .content-profile {
      display: flex;
      justify-content: space-between;
    }
  }

  @media screen and (min-width: 769px) {
    .content-profile .profile {
      width: calc(50% - 10px);
    }
  }

  .challenge-content .txt_small {
    font-size: 11px
  }

  .challenge .profile {
    border-radius: 8px;
    background: #f5f5f5;
    padding: 20px 30px;
    margin: 0 0 20px;
  }

  @media screen and (min-width: 769px) {
    .challenge .profile {
      display: flex;
      margin: 0 0 30px;
    }
  }

  .challenge .profile.-group {
    align-items: center;
    margin: 0;
    padding: 20px;
  }

  @media screen and (min-width: 769px) {
    .challenge .profile.-group {
      padding: 30px;
    }
  }

  .challenge .profile.-group p {
    line-height: 1.8;
  }

  .challenge .profile.-group .txt_link {
    margin-top: 20px;
    display: inline-block;
    font-size: 12px;
  }

  .challenge .profile.-group .txt_small {
    font-size: 11px;
  }

  .challenge .profile-image {
    margin: 0 auto 20px;
    width: 140px;
  }

  @media screen and (min-width: 769px) {
    .challenge .profile.-group .txt_link {
      margin-top: 20px;
      display: inline-block;
    }

    .challenge .profile.-group .txt_small {
      font-size: 11px;
    }

    .challenge .profile-image {
      flex-shrink: 0;
      margin: 0 20px 0 0;
      width: 90px;
    }
  }

  .challenge .profile.-group .profile-image {
    background-color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 45px 30px 45px 20px;
    width: 100%;
  }

  @media screen and (min-width: 769px) {
    .challenge .profile.-group .profile-image {
      padding: 0 30px 0 20px;
      margin-right: 30px;
      min-height: 160px;
      width: 250px;
    }
  }

  .challenge .profile.-group .profile-image img {
    width: 100%;
  }

  .challenge .profile-info__header {
    margin: 0 0 12px;
  }

  .challenge .profile-info__header .-name {
    color: var(--dRed);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.04em;
  }

  @media screen and (min-width: 769px) {
    .challenge .profile-info__header .-name {
      font-size: 16px;
    }
  }

  .challenge .profile-info__overview {
    font-size: 10px;
    letter-spacing: 0.04em;
    line-height: 1.6;
  }

  .challenge .profile-info__overview .-right {
    padding-left: 12.5em;
  }

  .challenge .profile-info__overview li.role {
    margin-left: 10px;
  }

  .challenge .profile-btn {
    border: 1px solid #05317A;
    border-radius: 100px;
    color: #05317A;
    display: block;
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    line-height: 1;
    padding: 15px 0;
    margin: 20px auto 0;
    width: 222px;
  }

  @media screen and (min-width: 769px) {
    .challenge .profile-btn {
      margin: 25px 0 0;
    }

    .challenge .profile-btn:hover {
      opacity: 0.6;
    }
  }

  /* related */
  .section.related-content {
    background-color: #fff;
  }

  @media screen and (min-width: 768px) {
    .section.related-content {
      padding: 60px 0;
    }
  }

  .related-content__sub {
    color: #0F398D;
    font-style: italic;
    font-family: "Roboto", sans-serif;
    font-weight: bold;
    font-size: 14px;
    letter-spacing: 0.04em;
  }

  @media screen and (min-width: 768px) {
    .related-content__sub {
      font-size: 24px;
    }
  }

  .related-content__heading {
    font-weight: 700;
    font-size: 17px;
    letter-spacing: 0.1em;
  }

  @media screen and (min-width: 768px) {
    .related-content__heading {
      font-size: 30px;
    }
  }

  .related-content__header {
    margin: 0 0 20px;
  }

  @media screen and (min-width: 768px) {
    .related-content__header {
      margin: 0 0 30px;
    }
  }

  @media screen and (min-width: 768px) {
    .related-content__list {
      display: flex;
      justify-content: space-between;
    }
  }

  .related-content__item {
    margin: 0 0 20px;
  }

  @media screen and (min-width: 768px) {
    .related-content__item {
      width: calc((100% - 60px) / 3);
    }
  }

  .related-content__link {
    display: block;
    position: relative;
  }

  @media screen and (min-width: 768px) {
    .related-content__link:hover {
      opacity: 0.6;
    }
  }

  .related-content__link::before {
    background: url("/content/dam/nttcom/hq/jp/about-us/technology-strategy/img/play_btn.png") 0 0 no-repeat;
    background-size: cover;
    content: "";
    display: block;
    margin: auto;
    height: 60px;
    width: 60px;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
  }

  .related-content__image {
    border-radius: 8px;
    width: 100%;
  }

  .related-content__title {
    font-size: 12px;
    letter-spacing: 0.07em;
    margin: 15px 0 0;
  }

  @media screen and (min-width: 768px) {
    .related-content__title {
      font-size: 14px;
      margin: 20px 0 0;
    }
  }

  .related-info {
    color: #fff;
    text-align: center;
    padding: 30px 20px;
  }

  @media screen and (min-width: 768px) {
    .related-info {
      padding: 60px 0;
    }
  }

  .related-info__title {
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.07em;
    margin: 0 0 20px;
  }

  @media screen and (min-width: 768px) {
    .related-info__title {
      font-size: 20px;
      margin: 0 0 40px;
    }
  }

  .related-info__link {
    display: block;
    transition: 0.3s;
    margin: 0 auto 20px;
    width: 100%;
  }

  @media screen and (min-width: 768px) {
    .related-info__link {
      width: 700px;
    }
  }

  .related-info__link:hover {
    opacity: 0.6;
  }

  .related-info__attention {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.07em;
    color: #000;
  }

  @media screen and (min-width: 768px) {
    .related-info__attention {
      font-size: 16px;
    }
  }

  /* float */
  .float_box {
    position: relative;
  }

  .float_btn {
    background: #002259;
    border-radius: 50%;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: bold;
    line-height: 1.28;
    letter-spacing: 0.07em;
    width: 70px;
    height: 70px;
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 99;
  }

  @media screen and (min-width: 768px) {
    .float_btn {
      font-size: 14px;
      transition: 0.3s;
      width: 80px;
      height: 80px;
    }

    .float_btn:hover {
      opacity: 0.6;
    }
  }

  .float_btn::before {
    content: "";
    border-top: solid 3px #FECE2B;
    border-left: solid 3px #FECE2B;
    display: block;
    margin: auto;
    width: 9px;
    height: 9px;
    transform: rotate(45deg);
    position: absolute;
    top: 10px;
    left: 0;
    right: 0;
  }

  @media screen and (min-width: 768px) {
    .float_btn::before {
      top: 15px;
    }
  }

  .float_btn span {
    color: #fff;
    padding-top: 10px;
  }