body {
  font-family: 'Zen Kaku Gothic Antique', 'Noto Sans JP', 'Hiragino Sans', 'Meiryo', sans-serif;
  /* 修正済み */
  font-size: 16px;
  font-weight: normal;
  line-height: 180%;
  color: #1C81A6;
}

:lang(en) {
  font-family: 'Roboto', 'Arial', sans-serif;
  font-weight: 400;
}


img {
  max-width: 100%;
  height: auto;
}

/* レイアウト */

header {
  width: 100%;
  height: 113px;
  background-color: #fff;
  display: flex;
  align-items: center;
  text-align: center;
}



.logo_img {
  display: inline-block;
  width: 100%;
}



@media screen and (max-width: 762px) {
  .header {
    background-color: #EDFAFF;
    height: 74px;
  }

  .logo_img {
    display: inline-block;
    margin: 0 auto;
    width: 45%;
  }
}


/* ハンバーガーメニュー */
/* 円の部分 */
.burger {
  position: fixed;
  width: 118px;
  height: 118px;
  border-radius: 50%;
  background-color: #73BAD5;
  top: 16px;
  right: 11px;
  z-index: 20;
  cursor: pointer;
}

/* 文字の部分 */
.burger_text {
  display: inline-block;
  font-size: 20px;
  font-weight: 200;
  color: #fff;
  position: absolute;
  left: 26px;

}

/* バツの部分 */
.burger_line {
  display: inline-block;
  background-color: #fff;
  width: 35px;
  height: 3px;
  position: absolute;
  left: 40px;
  opacity: 0;
  visibility: hidden;
  transition: all .4s;
}

.burger_line.active {
  opacity: 1;
  visibility: visible;
}

.burger_text:nth-of-type(1) {
  top: 49px
}

.burger_line:nth-of-type(2) {
  top: 46px
}

.burger_line:nth-of-type(3) {
  top: 76px
}

.burger.active span:nth-of-type(1) {
  opacity: 0;
}

.burger.active span:nth-of-type(2) {
  top: 58px;
  transform: rotate(-45deg);
}

.burger.active span:nth-of-type(3) {
  top: 58px;
  transform: rotate(45deg);
}


/* ナビメニュー */
.nav {
  border-radius: 50px;
  background-color: #73BAD5;
  position: fixed;
  z-index: 10;
  top: 20px;
  right: 200px;
  opacity: 0;
  visibility: hidden;
  transition: .6s;
}

.nav.active {
  opacity: 1;
  visibility: visible;
}

.nav_content {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
  height: 700px;
  width: 540px;
  position: relative;
  z-index: 99999999;
}

.nav_menu {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 26px;
  padding: 98px 83px 56px 0px;
}


/* ナビメニュー */
.nav_menu-link {
  text-decoration: none;
  color: #fff;
  padding: 10px 0;
  transition: all 0.3s;
  cursor: pointer;
  position: relative;

}



.nav_menu-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0px;
  width: 0;
  height: 3px;
  background-color: #fff;
  transition: width 0.3s ease;
}

.nav_menu-link:hover::after {
  width: 420px;
}


.menu-white {
  display: flex;
  align-items: center;
  height: 100%;
  position: relative;
  left: 0;
  width: 100px;
}

.menu-white p {
  transform: rotate(90deg);
  transform-origin: center center;
  font-weight: 700;
  font-size: 100px;
  margin: 0;
  padding: 0;
  color: rgba(255, 255, 255, 0.3);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(90deg);
  /* 中央揃え + 回転 */
}

@media screen and (max-width: 762px) {

  .burger_line {
    width: 35px;
    height: 3px;
    left: 18px;
  }

  .burger_text:nth-of-type(1) {
    top: 20px
  }


  .burger.active span:nth-of-type(2) {
    top: 35px;
  }

  .burger.active span:nth-of-type(3) {
    top: 35px;
  }


  .burger {
    width: 70px;
    height: 70px;
    right: 5px;
  }

  .burger_text {
    left: 4px;
  }

  .nav_content {
    height: 500px;
    width: 100%;
    gap: 0px;
  }

  .nav {
    width: 70%;
    top: 100px;
    right: 70px;
    opacity: 0;
    visibility: hidden;
    transition: .6s;
    z-index: 9999;
  }

  .nav_menu {
    font-size: 15px;
    gap: 5px;
    padding: 0px;
    justify-content: flex-start;
  }

  .nav_menu-link:hover::after {
    width: 288px;
  }

  .menu-white p {
    font-size: 60px;
  }

}

/* ここから追従ボタン*/

/* 矢印を含むボタンのスタイル */
.arrow-up {
  display: inline-block;
  position: relative;
  width: 30px;
  /* 円のサイズ */
  height: 30px;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.arrow-up:hover {
  transform: translateY(-5px);
}

/* 円の背景 */
.arrow-up::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background-color: #73BAD5;
  border-radius: 50%;
  top: 0px;
  left: 0;
  z-index: 0;
}

/* 縦線（矢印の棒） */
.arrow-up::before {
  content: '';
  position: absolute;
  width: 2px;
  /* 棒の太さ */
  height: 12px;
  /* 棒の長さ */
  background-color: #fff;
  /* 線の色 */
  top: 30%;
  left: 51%;
  transform: translateX(-50%);
  z-index: 1;
}

/* 斜め線（矢印の先端） */
.arrow-up span {
  position: absolute;
  width: 8px;
  /* 矢印の先端の長さ */
  height: 8px;
  border-top: 2px solid #fff;
  /* 上向きの線 */
  border-right: 2px solid #fff;
  /* 右向きの線 */
  top: 30%;
  left: 50%;
  transform: translateX(-50%) rotate(-45deg);
  z-index: 1;
}



/* 追従ボタン全体の調整*/

.right-btn-link {
  display: block;
  text-decoration: none;
}

.right-btn_box1 {
  border-radius: 21px 0 0 0;
}


.right-btn_box2 {
  border-top: 1px solid #fff;
  border-bottom: 1px solid #fff;
}

.right-btn_box3 {
  border-radius: 0 0 0 21px;
}

.right-btn_box1,
.right-btn_box2,
.right-btn_box3 {
  width: 78px;
  height: 78px;
  background-color: #73BAD5;
  color: #fff;
  display: flex;
  flex-direction: column-reverse;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 5px;
  transition: transform 0.3s ease;
}

.right-btn_box1:hover,
.right-btn_box2:hover,
.right-btn_box3:hover {
  border: 1px solid #4A4A4A;
  box-sizing: border-box;
  transition: border 0.8s ease;
}

.right-btn_wrap {
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  position: fixed;
  width: 80px;
  height: 291px;
  right: 10px;
  top: 70%;
  transform: translateY(-50%);
  z-index: 999999999999;
}

.right-btn_content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
}




@media screen and (max-width: 762px) {

  .right-btn_wrap {

    width: 60px;
    height: auto;
    right: 1px;
  }

  .right-btn_content {
    width: 60px;
    height: auto;
    right: 8px;
    top: 70%;
  }

  .right-btn_box1,
  .right-btn_box2,
  .right-btn_box3 {
    width: 60px;
    height: 60px;
    font-size: 11px;
    gap: 0px;
    line-height: 160%;
  }

  .right-btn {
    display: block;
    width: 40%;
  }

  .arrow-up::after {
    top: -15px;
  }

  .arrow-up::before {
    top: -5px;
  }

  .arrow-up span {
    top: -13%;
  }
}




/* 詳細はこちらの矢印ボタン */
.button-link {
  width: calc(16px + 180px);
}

.button-link03 {
  width: 379px;
}

.button-link04 {
  width: 30px;
}

.button-link05 {
  width: calc(16px + 200px);
}

.button-link06 {
  width: 138px;
}


.button-link,
.button-link03,
.button-link04,
.button-link05,
.button-link06 {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  position: relative;
  box-sizing: border-box;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s;
  margin-left: auto;
  margin-top: auto;
  align-items: flex-end;
  font-size: 16px;
  font-weight: 400;
}


/* 詳細はこちらの矢印ボタン */
.button-link04 {
  width: 30px;
  height: 1px;
  margin-right: 30px;
}


.button-link04::after {
  content: "";
  display: block;
  position: absolute;
  width: 9px;
  height: 1px;
  background: #1C81A6;
  rotate: 40deg;
  right: 0px;
  bottom: 3px;
}


.button_action03,
.button_action04,
.button_action05 {
  margin-right: 0;
  text-align: left;
  color: #EDFAFF;
}


.button_action06,
.button_action03 {
  color: #1C81A6;
}


.button_action04,
.button_action05 {
  color: #EDFAFF;
}


.button-link::before,
.button-link03::before,
.button-link04::before,
.button-link05::before,
.button-link06::before {
  content: "";
  display: block;
  position: absolute;
  width: 100%;
  height: 1px;
  background: #1C81A6;
  bottom: 0;
  transition: all 0.3s;
}


.button-link06::after,
.button-link05::after,
.button-link03::after,
.button-link::after {
  content: "";
  display: block;
  position: absolute;
  width: 14px;
  height: 1px;
  background: #1C81A6;
  rotate: 40deg;
  right: 0px;
  bottom: 5px;
  transition: all 0.3s;
}


.button-link06:hover::after,
.button-link06:hover::before,
.button-link05:hover::after,
.button-link05:hover::before,
.button-link:hover::after,
.button-link:hover::before,
.button-link03:hover::after,
.button-link03:hover::before {
  translate: 20px 0;
  transition: all 0.3s;
}

@media screen and (max-width: 762px) {
  .button-link {
    width: 200px;
  }

  .button-link06 {
    width: 80px;
  }

  .button_action06 {
    font-size: 13px;
  }

  .button-link06:hover::after,
  .button-link06:hover::before,
  .button-link05:hover::after,
  .button-link05:hover::before,
  .button-link:hover::after,
  .button-link:hover::before,
  .button-link03:hover::after,
  .button-link03:hover::before {
    translate: 10px 0;

  }
}





/* ここからフッター*/

.footer-section {
  display: flex;
  justify-content: center;
  margin-top: 100px;
  width: 100%;
  background-color: #EDFAFF;
  box-sizing: border-box;
}

.footer_content.wrapper {
  width: 92%;
  max-width: 1324px;
  margin: 0 auto;
}

.footer_content {

  display: flex;
  justify-content: flex-start;
  gap: 7%;
  padding: 60px 0px 70px 0px;
}

.school_inner01 {
  display: flex;
  flex-direction: column;
  padding-left: 10px;
  padding-right: 10px;
  gap: 5px;
}


.school_inner02,
.school_inner03 {
  display: flex;
  flex-direction: column;
}



.school_inner05 {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.school_inner0304 {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.logo-black {
  display: block;
  width: 100%;
  max-width: 314px;
  height: auto;
}

.sns-logo {
  display: flex;
  justify-content: flex-start;
  padding-top: 20px;
  gap: 20px;
}


.school_contact {
  display: block;
  justify-content: center;
  align-items: center;
  text-align: left;
  gap: 21px;
  padding-top: 40px;
}



.school_inner02 {
  display: flex;
  flex-direction: column;
  text-align: left;
  gap: 40px
}

.inner02-info {
  text-align: left;
}

.school_inner-title {
  font-weight: bold;
}



/* ここからフッター*/

/* footer */
.fotter_copy {
  color: #4A4A4A;
  text-align: center;
  font-size: 12px;
}


@media screen and (max-width: 762px) {

  .footer_content.wrapper {
    width: 83%;
  }

  .footer-section {
    margin-top: 40px;
  }

  .footer_content {
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
  }

  .footer_content {
    display: flex;
    justify-content: space-between;
    padding: 0px;
  }

  .school_inner01 {
    width: 83%;
    padding-top: 25px;
    margin: 0 auto;
  }

  .school_inner02,
  .school_inner04 {
    display: inline-block;
    vertical-align: top;


    /* 50%より少し小さめにして間に余白 */
  }

  .school_inner02 {
    padding-top: 50px;
  }



  .school_contact {
    padding-top: 20px;
    margin: 0 auto;
  }

  .sns-logo {
    justify-content: center;
  }

  .school_inner03 {
    padding-top: 20px;
  }


  .school_inner0304 {
    gap: 20px;
  }

  .school_inner05 {
    padding-bottom: 58px;
  }
}