@charset "UTF-8";
@import url(https://fonts.googleapis.com/css?family=Roboto:400,100,300);
/*－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

全ページ共通

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－*/

html {
  font-size: 62.5%;
  scroll-behavior: smooth;
}

body {
  margin: 0;  
  font-family: 'Roboto';
  font-size: 1.6rem;
  overflow: auto;
  line-height: 1.8;
}
@media screen and (max-width: 520px) {
  body {
    font-size: 1.4rem;
  }
}

*:hover,
*::before,
*::after {
  transition: 0.2s;
}

/*－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

セクション

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－*/
section {
  position: relative;
  display: block;
  margin: 0;
  padding-top: 100px;
  padding-left: 20px;
  height: 100vh;
  background-color: white;
  z-index: 100;
  p {
    font-size: 1.5rem;
    margin: 5px 20px 5px 30px;
    letter-spacing: 1px;
    text-align: justify;
  }
  /* タブレット、スマホ */
  @media screen and (max-width: 520px) {
    p {
      margin: 20px;
    }
  }
}
/*－－－－－－－－－－ 見出し －－－－－－－－－－*/
h1,h2,h3,h4,
h5 {
  font-family: "Yanone Kaffeesatz", "Zen Kaku Gothic New", YuGothic, "Yu Gothic medium", "Hiragino Sans", Meiryo, "sans-serif";
  letter-spacing: 6px;
  font-weight: normal;
  word-break: break-all;
  text-transform: uppercase;  /* 大文字固定 */
}


/* スマホ */
@media screen and (max-width: 520px) {
  h1,h2,h3,h4,
  h5 {
    letter-spacing: 4px;
  }
}
/*－－－－－－－－－－ 大見出し －－－－－－－－－－*/
.headingL {
  position: relative;
  font-size: clamp(2.8rem, 1.543rem + 3.05vw, 3.6rem);
  margin: clamp(3rem, 2.6rem + 2vw, 5rem) 0;
}
/* .headingL::after {
  position: absolute;
  left: 0;
  bottom: -10px;
  content: "";
  width: 100%;
  height: 18px;
  background-size: 18px 18px;
  background-image: repeating-conic-gradient(from 0deg, #e0e9f2 0deg 90deg, #fff 90deg 180deg);
  background-repeat: repeat;
}
.headingL.ja {
  font-size: clamp(2.4rem, 2.24rem + 0.8vw, 3.2rem);
} */

/*－－－－－－－－－－ 中見出し －－－－－－－－－－*/
.sitetitle {
  font-size: clamp(2.2rem, 2.08rem + 0.6vw, 2.8rem);
  border-bottom: 3px solid #b7c4d1;
  padding: 6px 20px 0;
}
.sitetitle.ja {
  font-size: clamp(2rem, 1.92rem + 0.4vw, 2.4rem);
}
.headingM {
  font-size: clamp(2.2rem, 2.08rem + 0.6vw, 2.8rem);
  border-bottom: 3px solid #b7c4d1;
  padding: 6px 20px 0;
}
.headingM.ja {
  font-size: clamp(2rem, 1.92rem + 0.4vw, 2.4rem);
}
/*－－－－－－－－－－ 小見出し －－－－－－－－－－*/
.headingS {
  position: relative;
  font-size: clamp(2rem, 1.92rem + 0.4vw, 2.4rem);
  margin: 20px 0;
  position: relative;
  padding-left: 30px;
}
.headingS::before {
  content: "";
  position: absolute;
  top: calc(50% - 10px);
  left: 0;
  width: 20px;
  height: 20px;
  background-size: 20px 20px;
  background-image: repeating-conic-gradient(from 0deg, #e0e9f2 0deg 90deg, #7087A4 90deg 180deg);
}
.headingS.ja {
  font-size: clamp(1.6rem, 1.286rem + 0.76vw, 1.8rem);
}

/*－－－－－－－－－－ 最小見出し －－－－－－－－－－*/
.headingSS {
  font-size: clamp(1.6rem, 1.286rem + 0.76vw, 1.8rem);
  margin: 20px 0;
}

/*－－－－－－－－－－ 文字装飾 －－－－－－－－－－*/
.right {
  text-align: right;
}

.center {
  text-align: center;
}

.marker {
  background: linear-gradient(transparent 60%, #e0e9f2 60%);
}

.label {
  display: block;
  margin: 20px 0;
  padding: 2px 10px;
  /* background-color: #7087A4; */
  /* color: #fff; */
  /* width: -moz-fit-content;
  width: fit-content; */
  border-bottom: 3px solid #b7c4d1;
}

/*－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

リンク

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－*/
a {
  color: inherit;
  text-decoration-color: #588bd8;
  text-underline-offset: 4px;
  -moz-text-decoration-color: #7087A4;
}

@media (hover: hover) {
  a img:hover {
    filter: saturate(0.3);
    -webkit-filter: saturate(0.3);
  }
}
/*－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

アイコン等

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－*/
/* .la,
.las {
  font-size: 1.2em;
  color: #7087A4;
  position: relative;
  top: 2px;
} */

/* 矢印 */
.arrow {
  text-decoration: none;
  right: 20px;
  bottom: 20px;
  font-size: 20px;
  border-radius: 50%;
  text-align:center;
  position: fixed;
}

/* プラスマイナス */
.plusbtn {
  position: relative;
  width: 30px;
  height: 30px;
  display: block;
  transition: 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
  cursor: pointer;
  will-change: transform;
}
.plusbtn:hover {
  transform: scale(0.92);
}
.plusbtn:before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  width: 75%;
  height: 3px;
  border-radius: 10px;
  background: #e0e9f2;
  display: block;
}
.plusbtn:after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  width: 3px;
  height: 75%;
  border-radius: 10px;
  background: #e0e9f2;
  display: block;
  transition: 0.3s cubic-bezier(0.76, 0, 0.24, 1);
  will-change: transform;
}
.plusbtn.active:after {
  height: 0;
}

/*－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

リスト

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－*/
.list,
.list-number {
  margin: 20px 0;
}

.list li {
  position: relative;
  margin-left: 16px;
}
.list li::before {
  position: absolute;
  top: calc(50% - 4px);
  left: -16px;
  content: "";
  display: block;
  width: 8px;
  height: 8px;
  background-color: #e0e9f2;
  border-radius: 50%;
  -webkit-border-radius: 50%;
  -moz-border-radius: 50%;
  -ms-border-radius: 50%;
  -o-border-radius: 50%;
}

/*－－－－－－－－－－ 数字付きリスト －－－－－－－－－－*/
.list-number {
  list-style-type: decimal-leading-zero;
  list-style-position: inside;
}
.list-number li {
  text-indent: -3.4rem;
  padding-left: 3.6rem;
}
.list-number li > :not(:first-child) {
  text-indent: 0;
}

/*－－－－－－－－－－ 表リスト －－－－－－－－－－*/
.gridlist {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px 20px;
  margin: 35px;
  font-size: 1.5rem;
}
.gridlist .gridlist__label,
.gridlist .gridlist__text {
  padding: 6px 12px 4px;
}
.gridlist .gridlist__label {
  display: flex;
  align-items: center;
  /* border-bottom: 3px solid #b7c4d1; */
  /* background-color: #e0e9f2; */
}
/* スマホ */
@media screen and (max-width: 520px) {
  .gridlist {
    grid-template-columns: 1fr;
  }
}

/*－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

枠組み

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－*/
.box {
  position: relative;
  border: 1px solid #7087A4;
  border-left: none;
  border-right: none;
  margin: 80px;
  padding: 60px 40px;
}
.box::before, .box::after {
  position: absolute;
  left: 0;
  content: "";
  width: 100%;
  height: 18px;
  background-size: 18px 18px;
  background-image: repeating-conic-gradient(from 0deg, #e0e9f2 0deg 90deg, #fff 90deg 180deg);
  background-repeat: repeat;
}
.box::before {
  top: 8px;
}
.box::after {
  bottom: 8px;
}
.box > :first-child {
  margin-top: 0;
}
.box > :last-child {
  margin-bottom: 0;
}
/* タブレット、スマホ */
@media screen and (max-width: 1023px) {
  .box {
    margin: 40px 20px;
    padding: 40px 10px;
  }
}

/*－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

SNSアイコンリスト

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－*/
.snslist .snslist__item {
  width: 36px;
  height: 36px;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #7087A4;
  border-radius: 50%;
  transition: 0.2s;
  -webkit-transition: 0.2s;
  -moz-transition: 0.2s;
  -ms-transition: 0.2s;
  -moz-transition: 0.2s;
}
.snslist .snslist__item .lab {
  margin: 6px 1px 3px 3px;
  font-size: 2rem;
}
.snslist .snslist__item a {
  color: #fff;
}
.snslist .snslist__item:hover.twitter {
  background-color: #1DA1F2;
}
.snslist .snslist__item:hover.instagram {
  background-color: #CF2E92;
}
.snslist .snslist__item:hover.facebook {
  background-color: #4267b2;
}
.snslist .snslist__item:hover.youtube {
  background-color: #DA1725;
}
/* スマホ */
@media screen and (max-width: 520px) {
  .snslist {
    justify-content: center;
  }
}

/*－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

レイアウト

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－*/
/*－－－－－－－－－－ 横並び －－－－－－－－－－*/
.flex {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  /* 表示サイズを変えたい場合は200pxの部分を変更 */
  gap: 20px;
  justify-content: center;
  align-items: center;
}

/*－－－－－－－－－－ 2カラム表示 －－－－－－－－－－*/
.--2column {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 60px;
}

/* タブレット、スマホでは１カラム */
@media screen and (max-width: 768px) {
  .--2column {
    grid-template-columns: 1fr;
  }
}
/*－－－－－－－－－－ 左右反対 －－－－－－－－－－*/
.reverse {
  flex-direction: row-reverse;
}

/*－－－－－－－－－－ 全体のレイアウト －－－－－－－－－－*/
.main {
  position: relative;
  display: block;
  margin: 0;
  padding-top: 90px;
  padding-left: 20px;
  padding-bottom: 30px;
  min-height: 100svh;
  background-color: white;
  z-index: 100;
  transition: transform 500ms ease;

  @media screen and (min-width: 1025px), print {
    p {
      margin: 20px;
    }
  }
  /* タブレット、スマホ */
  @media screen and (max-width: 1023px) {
    p {
      margin: 20px;
    }
  }
}
/* PC */
@media screen and (min-width: 1025px), print {
  .header {
    position: fixed;
    top: 0;
    width: min(25vw, 360px);
  }
  .main {
    width: 75vw;
    max-width: 1160px;
  }
}
.container {
  background-color: #fff;
}
.container .mainwrapper {
  padding: 10px;
  padding-top: 20px;
  min-height: 100svh;
}
.container .mainwrapper > :first-child {
  margin-top: 0;
}
/* タブレット */
@media screen and (min-width: 768px) {
  .container .mainwrapper {
    padding: 20px;
    padding-top: 40px;
  }
}
/* PC */
@media screen and (min-width: 1025px), print {
  .container {
    width: -moz-fit-content;
    width: fit-content;
    margin: auto;
  }
  .container .header {
    position: fixed;
    top: 0;
    width: min(25vw, 360px);
  }
  .container .mainwrapper {
    width: 75vw;
    max-width: 1160px;
    padding: 60px;
  }
  .container .footer {
    position: fixed;
    bottom: 0;
  }
}
/*－－－－－－－－－－ セクション －－－－－－－－－－*/
section:first-of-type {
  padding-top: 0;
}

section {
  padding: 30px 0;
}
section > :first-child {
  margin-top: 0;
}
section > :last-child {
  margin-bottom: 0;
}
section section:first-of-type {
  padding-top: 0;
}
section section:last-of-type {
  padding-bottom: 0;
}

/* PC */
@media screen and (min-width: 1025px), print {
  section {
    padding: 40px 0;
  }
}
/*－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

メイン画像、サイト名

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－*/
.mainvisual {
  position: relative;
  height: clamp(18vh, -11.429rem + 76.19vw, 40vh);
}
.mainvisual .mainvisual__img {
  width: 100%;
  height: 100%;
}
.mainvisual .mainvisual__img img {
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
     object-fit: cover;
}
.mainvisual .sitename {
  position: absolute;
  bottom: 0px;
  right: 10px;
}
.mainvisual .sitename a {
  color: #fff;
  text-decoration: none;
}

/*－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

メニューボタン

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－*/
.hamburger {
  position: fixed;
  top: 0;
  right: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 50px;
  height: 50px;
  background-color: #7087A4;
  border: none;
  cursor: pointer;
  z-index: 999;
}
.hamburger .hamburger__line {
  position: absolute;
  width: 25px;
  height: 2px;
  background-color: #fff;
}
.hamburger .hamburger__line::before, .hamburger .hamburger__line::after {
  position: absolute;
  content: "";
  display: block;
  width: 25px;
  height: 2px;
  background-color: #fff;
}
.hamburger .hamburger__line::before {
  top: -8px;
}
.hamburger .hamburger__line::after {
  bottom: -8px;
}

/*閉じる*/
.hamburger._active .hamburger__line {
  background: transparent;
}
.hamburger._active .hamburger__line::before {
  top: 0;
  transform: rotate(45deg);
}
.hamburger._active .hamburger__line::after {
  bottom: 0;
  transform: rotate(-45deg);
}

/* PCで非表示 */
@media screen and (min-width: 1025px), print {
  .hamburger {
    display: none;
  }
}

/*－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

メニュー

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－*/
.globalnav {
  font-family: "Yanone Kaffeesatz", "Zen Kaku Gothic New", YuGothic, "Yu Gothic medium", "Hiragino Sans", Meiryo, "sans-serif";
  font-size: 2rem;
  text-transform: uppercase;
}

.globalnav__main .globalnav__item {
  position: relative;
  border-bottom: 1px solid #e0e9f2;
}
.globalnav__main .globalnav__item a {
  display: block;
  text-align: center;
  text-decoration: none;
  padding: 16px 40px 10px;
  transition: 0.2s;
  -webkit-transition: 0.2s;
  -moz-transition: 0.2s;
  -ms-transition: 0.2s;
  -moz-transition: 0.2s;
}
.globalnav__main .globalnav__item a:hover {
  color: #fff;
  background-color: #7087A4;
}
.globalnav__main .globalnav__item._has-child:hover:hover {
  color: #fff;
  background-color: #7087A4;
}
.globalnav__main .globalnav__item._has-child:hover .globalnav__child {
  visibility: visible;
  opacity: 1;
  transition: 0.4s;
  -webkit-transition: 0.4s;
  -moz-transition: 0.4s;
  -ms-transition: 0.4s;
  -moz-transition: 0.2s;
  -o-transition: 0.4s;
}
.globalnav__main .globalnav__child {
  position: absolute;
  top: 0;
  left: 80%;
  background-color: #e0e9f2;
  color: #333;
  visibility: hidden;
  opacity: 0;
  transition: 0.2s;
  z-index: 1;
}
.globalnav__main .globalnav__child::before {
  position: absolute;
  top: 0;
  left: 0;
  content: "";
  width: 0px;
  height: 0px;
  z-index: 1;
  border-width: 31px 0px 31px 30px;
  border-color: transparent transparent transparent #7087A4;
  border-style: solid;
}
.globalnav__main .globalnav__child li a {
  padding: 16px 20px 10px 50px;
}

/*  タブレット、スマホでの表示 */
@media screen and (max-width: 1024px) {
  .globalnav {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 998;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    display: flex;
    align-items: center;
    background-color: #e0e9f2;
    opacity: 0;
    transform: translateX(100%);
    transition: 0.4s;
    -webkit-transition: 0.4s;
    -moz-transition: 0.4s;
    -ms-transition: 0.4s;
    -moz-transition: 0.2s;
  }
  .globalnav._active {
    opacity: 1;
    transform: translateX(0);
    -webkit-transform: translateX(0);
    -moz-transform: translateX(0);
    -ms-transform: translateX(0);
    -o-transform: translateX(0);
    transition: 0.4s;
    -webkit-transition: 0.4s;
    -moz-transition: 0.4s;
    -ms-transition: 0.4s;
    -moz-transition: 0.2s;
    -o-transition: 0.4s;
  }
  .globalnav__main .globalnav__child {
    left: 100%;
  }
}
/*－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

サブメニュー

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－*/
.submenu__wrapper {
  background-color: #e0e9f2;
}

.submenu {
  margin-bottom: 40px;
}

/* 親メニューのスタイル */
.submenu__item {
  position: relative;
  padding: 10px 0;
}
.submenu__item a {
  display: inline-block;
  padding: 8px 10px 8px;
  text-decoration: none;
  transition: 0.2s;
  -webkit-transition: 0.2s;
  -moz-transition: 0.2s;
  -ms-transition: 0.2s;
  -moz-transition: 0.2s;
}
.submenu__item > a {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 20px;
}
.submenu__item > a::after {
  content: "";
  display: block;
  height: 4px;
  background: #fff;
}

/* 子メニューの左に余白 */
.submenu__main > ._has-child > ul {
  margin-left: 20px;
}

/* 子、孫メニューのスタイル */
.submenu__child > li {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: flex-start;
}
.submenu__child > li a {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 20px;
}
.submenu__child > li a::before {
  content: "";
  display: block;
  height: 1px;
  background: #7087A4;
}

.submenu__grandchild li {
  font-size: 1.4rem;
}
.submenu__grandchild li a::before {
  content: "";
  display: block;
  height: 1px;
  border-bottom: 1px dashed #e0e9f2;
}

@media screen and (max-width: 520px) {
  .submenu__child > li {
    grid-template-columns: 1fr;
  }
  .submenu__grandchild li {
    margin-left: 40px;
  }
}
/*－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

ページUP

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－*/
/* .pageup {
  position: fixed;
  right: 2vw;
  bottom: 2vw;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 50px;
  height: 50px;
  background-color: #7087A4;
  border-radius: 50%;
  -webkit-border-radius: 50%;
  -moz-border-radius: 50%;
  -ms-border-radius: 50%;
  -o-border-radius: 50%;
  transition: 0.2s;
  -webkit-transition: 0.2s;
  -moz-transition: 0.2s;
  -ms-transition: 0.2s;
  -moz-transition: 0.2s;
  opacity: 0;
}
.pageup .arrow {
  border-color: #fff;
  margin-top: 10px;
  transform: rotate(-45deg);
  -webkit-transform: rotate(-45deg);
  -moz-transform: rotate(-45deg);
  -ms-transform: rotate(-45deg);
  -o-transform: rotate(-45deg);
}

@media (hover: hover) {
  .pageup:hover {
    background-color: #e0e9f2;
  }
} */
/*－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

フッター

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－*/
.footer {
  font-family: "Yanone Kaffeesatz", "Zen Kaku Gothic New", YuGothic, "Yu Gothic medium", "Hiragino Sans", Meiryo, "sans-serif";
  font-size: 1.2rem;
  padding: 10px;
  position: absolute;
  bottom: 0;
}
/*－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

ハンバーガーメニュー用

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－*/
.menu {
  display: block;
  position: fixed;
  top: 20px;
  left: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  width: 50px;
  height: 50px;
  background-color: white;
  border-radius: 50%;
  transition: transform 250ms ease;
  cursor: pointer;
  z-index: 200;
  
  span {
    position: relative;
    display: block;
    width: 50%;
    height: 2px;
    background-color: #444;
    float: left;
    transform-origin: center center;
    transition: transform 250ms ease;
    z-index: 200;
    
    &:nth-of-type(1) {
      transform: translateY(-5px);
    }
    
    &:nth-of-type(3) {
      transform: translateY(5px);
    }
  }
}

#menu {
  display: none;

  &:checked ~ .menu {
    background-color: transparent;
    transform: rotate(360deg);
    transition: transform 250ms ease;
    
    span {
      background-color: white;
      transition: transform 250ms ease;
      
      &:nth-of-type(1) {
        transform: translateY(1px) rotate(45deg);
      }
      
      &:nth-of-type(2) {
        display: none;
      }
      
      &:nth-of-type(3) {
        transform: translateY(-1px) rotate(-45deg);
      }
    }
  }
  
  &:checked ~ .nav {
    left: 0px;
    transition: left 500ms ease;
  }
  
  &:checked ~ main {
    transform: translateX(200px);
    transition: transform 500ms ease;
  }
}

.nav {
  position: fixed;
  top: 0;
  width: 200px;
  height: 100vh;
  margin: 0;
  padding: 0;
  background-color: #3b4455;
  transition: left 500ms ease;
  z-index: 0;
  
  ul {
    position: relative;
    list-style-type: none;
    margin: 100px 0;
    padding: 0;
    
    li {
      position: relative;
      display: flex;
      align-items: center;
      border-bottom: 5px solid rgba(white,1);
      
      a {
        position: relative;
        display: block;
        margin: 0;
        padding: 15px 20px;
        color: white;
        font-size: 14px;
        font-weight: bold;
        text-decoration: none;
        
        &:before {
          position: absolute;
          content: '';
          top: 0;
          left: 0;
          width: 0;
          height: 100%;
          transition: width 250ms ease;
          z-index: -1;
        }
        
        &:hover {          
          &:before {
            width: 100%;
            height: 100%;
            background-color: rgba(white,1);
            transition: width 250ms ease;
          }
        }
      }
    }
  }
}


/* リンクの下線 */
a::after {
  position: absolute;
  left: 0;
  content: '';
  width: 100%;
  height: 2px;
  background: #97a6c4;
  bottom: -1px;
  transform: scale(0, 1);
  transform-origin: right top; /*変形（アンダーラインの伸長）の原点がaタグ（各メニュー）の右端*/
  transition: transform 0.3s;  /*変形の時間*/
  }
  
  a:hover::after {
  transform: scale(1, 1);     /*ホバー後、x軸方向に1（相対値）伸長*/
  transform-origin: left top; /*左から右に向かう*/
  }

  /* アコーディオン */
  button {
    display: block;
    margin-bottom: 10px;
  }
  
  .block1 {
    display: inline-block;
    background-color: #ccc;
    width: 100px;
    height: 100px;
    padding: 10px;
    box-sizing: border-box;
    vertical-align: top;
  }
  
  .block2 {
    display: inline-block;
    background-color: #aaa;
    width: 100px;
    height: 100px;
    padding: 10px;
    box-sizing: border-box;
  }
  
  .hide {
    display: none;  /*要素の非表示*/
  }