html {
    font-size: 16px;
  }

  body {
    margin: 0;
    font-family: sans-serif;
  }

  header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.8);
    ;
    color: white;
    z-index: 1000;
  }


  @media (max-width: 768px) {
    header {
      height: calc((100 / 750)*100vw);
    }
  }

  header .inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 10px 0;
    position: relative;
  }

  @media (max-width: 768px) {
    header .inner {
      display: flex;
      justify-content: space-between;
    }
  }

  .logo {
    font-size: 48px;
    color: #00479d;
    text-align: center;
    width: 100%;
    position: relative;
  }

  @media (max-width: 1400px) {
    .logo {
      font-size: calc((48 / 1400)*100vw);
    }
  }

  @media (max-width: 768px) {
    .logo {
      font-size: calc((60 / 750)*100vw);
      color: #00479d;
      text-align: center;
      width: 100%;
    }
  }

  .sns {
    position: absolute;
    top: 0;
    right: 0;
    display: flex;
    align-items: center;
    gap: 0 20px;
    line-height: 1.0em;
    padding: 20px 20px 0 0;
  }

  @media (max-width: 1400px) {
    .sns img {
      width: calc((34 / 1400)*100vw);
    }
  }

  @media (max-width: 768px) {
    .sns-pc img {
      width: calc((52 / 750)*100vw);
    }
  }

  .sns-pc {
    display: flex;
    align-items: center;
    justify-content: right;
    gap: 0 20px;
    line-height: 1.0em;
    padding: 15px 20px 0 0;
  }

  .lang {
    background-color: #027e98;
    color: #fff;
    text-decoration: none;
    font-size: 18px;
    line-height: 1.0;
    padding: 5px 15px;
  }

  @media (max-width: 1400px) {
    .sns .lang {
      font-size: calc((18 / 1400)*100vw);
      padding: calc((5 / 1400)*100vw) calc((15 / 1400)*100vw);
    }
  }

  @media (max-width: 768px) {
    .sns-pc .lang {
      font-size: calc((20 / 750)*100vw);
      padding: calc((8 / 750)*100vw) calc((20 / 750)*100vw);
    }
  }

  .burger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: calc((75 / 750)*100vw);
    height: calc((74 / 750)*100vw);
    cursor: pointer;
    position: relative;
  }

  .burger img {
    width: calc((75 / 750)*100vw);
    height: calc((74 / 750)*100vw);
  }

  .burger span {
    background: white;
    height: 3px;
    border-radius: 2px;
  }

  @media (max-width: 768px) {

    .burger #burger-open {
      display: inline;
    }

    .burger #burger-close {
      display: none;
    }

    .burger.open #burger-open {
      display: none;
    }

    .burger.open #burger-close {
      display: inline;
    }
  }

  .nav-menu {
    display: flex;
    justify-content: center;
    /* gap: 20px; */
    position: relative;
  }

  @media (min-width: 768px) {
    .nav-menu {
      display: flex !important;
    }
  }

  .nav-menu a {
    color: #00479d;
    text-decoration: none;
    padding: 0 17px;
    position: relative;
    text-align: center;
    font-size: 20px;
  }

  @media (max-width: 1400px) {
    .nav-menu a {
      padding: 0 calc((15 / 1400)*100vw);
      font-size: calc((20 / 1400)*100vw);
    }
  }



  /* PC表示時のみ中間メニューに縦線を表示 */
  @media (min-width: 768px) {
    .nav-menu a:not(:first-child)::before {
      content: "";
      position: absolute;
      left: 0;
      /*top: 25%;
        height: 50%;*/
      height: 100%;
      width: 1px;
      background-color: rgba(0, 71, 157, 0.5);
    }
  }

  main {
    /* padding: 80px 20px; */
    padding: 0 0 80px;
  }

  /* スマホ用スタイル */
  @media (max-width: 768px) {
    .burger {
      display: flex;
      position: absolute;
      top: calc((15 / 750)*100vw);
      right: calc((40 / 750)*100vw);
    }

    .nav-menu {
      display: none;
      position: absolute;
      top: calc((100 / 750)*100vw);
      left: 0;
      width: 100%;
      flex-direction: column;
      background: rgba(255, 255, 255, 0.8);
      max-height: calc(100vh - 60px);
      /* ヘッダーを除いた高さ */
      overflow-y: auto;
      /* スクロールを許可 */
    }



    .nav-menu a {
      display: block;
      width: calc((670 / 750)*100vw);
      padding: 15px;
      text-align: center;
      text-decoration: none;
      border-bottom: 1px solid #026898;
      box-sizing: border-box;
      margin: 0 auto;
      font-size: calc((36 / 750)*100vw);
    }

    .nav-menu a:last-child {
      border: none;
    }
  }

  .f-times {
    font-family: 'Times New Roman', Times, serif;
  }


  .main-image {
	width:100%;
    max-width: 1400px;
    margin: 0 auto;
  }
  
	.main-image img{
		width:100%;
	}


  .section-title {
    display: flex;
    font-weight: normal;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    position: relative;
    margin: 40px auto;
    width: 350px;
  }

  @media (max-width: 768px) {
    .section-title {
      margin: calc((40 / 750)*100vw) auto;
      font-size: calc((48 / 750)*100vw);
      width: calc((590 / 750)*100vw);
    }
  }

  .section-title::before,
  .section-title::after {
    content: '';
    flex: 1;
    height: 2px;
    background: #333;
    margin: 0 16px;
  }


  .image-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);

    /* 横2列 */
    gap: 70px 80px;
    max-width: 1000px;
    margin: 0 auto;
  }

  @media screen and (max-width: 768px) {
    .image-grid {
      gap: calc((50 / 750)*100vw) 0;
    }
  }

  .image-item {
    text-align: center;
  }

  @media screen and (max-width: 768px) {
    .image-item a {
      display: inline-block;
    }
  }

  .image-item picture,
  .image-item img {
    width: 100%;
    height: auto;
    display: block;
  }

  @media screen and (max-width: 768px) {

    .image-item picture,
    .image-item img {
      width: calc((540 / 750)*100vw);
    }
  }

  @media screen and (max-width: 768px) {
    .image-grid {
      grid-template-columns: 1fr;
      /* スマホでは1列 */
    }
  }

  .main-banner {
    padding: 80px 0 0 0;
  }

  @media screen and (max-width: 768px) {
    .main-banner {
      padding: calc((200 / 750)*100vw) 0 0 0;
    }
  }

  @media screen and (max-width: 768px) {
    .main-banner img{
      width: calc((540 / 750) * 100vw);
    }
  }


  .main-banner .inner {
    text-align: center;
  }

  .main-banner .inner a {
    display: inline-block;
    text-decoration: none;
  }

  .main-banner .inner a figcaption {
    color: #024287;
  }

  @media screen and (max-width: 768px) {
    .main-banner .inner a figcaption {
      font-size: calc((30 / 750)*100vw);
    }
  }

  @media screen and (max-width: 768px) {
    .main-banner.en .inner a figcaption {
      font-size: calc((27 / 750)*100vw);
    }
  }

  footer {
    text-align: center;
    color: #fff;
    font-size: 16px;
    background-color: #026898;
    padding: 10px 0;
    line-height: 1.0em;
  }

  @media screen and (max-width: 768px) {
    footer {
      font-size: calc((22 / 750)*100vw);
    }
  }

  .shadow {
    box-shadow: 3px 3px 10px rgba(0, 0, 0, 0.6);
  }

  .ah:hover {
    opacity: 0.8;
  }

  @media screen and (max-width: 768px) {
    .sp-none {
      display: none !important;
    }
  }

  @media screen and (min-width: 768px) {
    .pc-none {
      display: none !important;
    }
  }

  @media screen and (max-width: 1400px) {
    .main-contents {
      padding: 0 50px;
    }
  }

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

  .ir-current{
    color:#ff0000!important;
  }