:root {
  --color1: #88CCDD;
  --color2: #88DDBB;
  --color3: #EEAAAA;
  --color4: #EFAC74;
  --color5: #8888DD;
  --color6: #97CA47;
  --color7: #F7CE55;
  --color8: #88CCDD;
  --color9: #88DDBB;
}

.vc-txt-color1 { 
  color: var(--color1);
}
.vc-txt-color2 { 
  color: var(--color2);
}
.vc-txt-color3 { 
  color: var(--color3);
}
.vc-txt-color4 { 
  color: var(--color4);
}
.vc-txt-color5 { 
  color: var(--color5);
}
.vc-txt-color6 { 
  color: var(--color6);
}
.vc-txt-color7 { 
  color: var(--color7);
}
.vc-txt-color8 { 
  color: var(--color8);
}
.vc-txt-color9 { 
  color: var(--color9);
}

.about_grid {
  margin-top: 8vw;
  width: 100vw;
  background-color: white;
}

.about_grid__item {
  display: inline-block;
  float: left;
  width: 33.33vw;
  background-color: #ffffff;
}

.about_grid__item__image {
  display: block;
  width: 33.33vw;
}
.about_grid__item__image img {
  width: 33.33vw;
  height: 24vw;
  object-fit: contain;
}

.about_grid__item__description {
  position: relative;
  width: 33.33vw;
  height: 80vw;
}

.about_grid__item__description__number {
  display: block;
  height: 10.4vw;
  font-size: 10.66vw;
  font-weight: normal;
  font-style: normal;
  font-stretch: normal;
  line-height: 1.6;
  letter-spacing: normal;
  text-align: center;
  color: #88ccdd;
  margin-top: 0;
}

.about_grid__item__description__title {
  margin-top: 4.8vw;
  font-family: HiraKakuProN-W6;
  font-size: 3.2vw;
  font-weight: normal;
  font-style: normal;
  font-stretch: normal;
  line-height: 1.33;
  letter-spacing: normal;
  text-align: center;
  color: #000000;
}

.about_grid__item__description__content {
  margin: 2.66vw 1.33vw 2.13vw 1.33vw;
  font-family: HiraKakuProN-W3;
  font-size: 2.66vw;
  font-weight: normal;
  font-style: normal;
  font-stretch: normal;
  line-height: 1.7;
  letter-spacing: normal;
  text-align: left;
  color: #222222;
}

.about_grid__center_item {
  border-left: solid 1px #dddddd;
  border-right: solid 1px #dddddd;
}

.lesson_image {
  margin-left: -1.33vw;
  margin-right: -1.33vw;
}

.solution {
  text-align: center;
}

.left_image__image {
  width: 33.33vw;
  height: 32vw;
  display: block;
  float: left;
}

.left_image__text {
  width: 48vw;
  display: block;
  float: right;
}

.right_image__text {
  width: 48vw;
  display: block;
  float: left;
}

.right_image__image {
  width: 33.33vw;
  height: 32vw;
  display: block;
  float: right;
}

.table__table {
  width: 100%;
  border-style: none;
}

.table__table th {
  width: 50%;
  height: 8vw;
  background-color: #dddddd;
  font-family: HiraKakuProN-W6;
  font-size: 3.2vw;
  font-weight: normal;
  font-style: normal;
  font-stretch: normal;
  line-height: 1.67;
  letter-spacing: 0.32vw;
  text-align: center;
  color: #222222;
}

.table__table td {
  width: 50%;
  height: 8vw;
  border-bottom: solid 1px #dddddd;
  font-family: HiraKakuProN-W3;
  font-size: 3.2vw;
  font-weight: normal;
  font-style: normal;
  font-stretch: normal;
  line-height: 2.5;
  letter-spacing: 0.32vw;
  text-align: center;
  color: #222222;
}

.table__table td:nth-child(1) {
  border-right: solid 1px #dddddd;
}

.grey_caution {
  text-align: left;
  color: #666666;
}

.image_with_sticky {
  margin: 0 -5.33vw 0 -5.33vw;
}

.image_with_sticky_right {
  margin-left: -5.33vw;
}

.panel {
  border: solid 1px #dddddd;
  margin: 2.66vw;
}

.panel table {
  width: 100%;
}

.panel__title {
  width: 100%;
  height: 8vw;
  vertical-align: middle;
  background-color: #dddddd;
  font-family: HiraKakuProN-W6;
  font-size: 3.2vw;
  font-weight: normal;
  font-style: normal;
  font-stretch: normal;
  line-height: 1.67;
  letter-spacing: 0.32vw;
  text-align: center;
  color: #222222;
}

.panel__content__description {
  margin-top: 2.66vw;
  font-family: HiraKakuProN-W6;
  font-size: 2.93vw;
  font-weight: normal;
  font-style: normal;
  font-stretch: normal;
  line-height: 1.45;
  letter-spacing: normal;
  text-align: center;
}

.panel__content__list {
  margin: 6.13vw 2.66vw 1.6vw 2.66vw;
  padding-bottom: 1.6vw;
  font-family: HiraKakuProN-W3;
  font-size: 2.66vw;
  font-weight: normal;
  font-style: normal;
  font-stretch: normal;
  line-height: 1.6;
  letter-spacing: normal;
  text-align: left;
  color: #222222;
}

.panel__content__list ul {
  list-style-type: disc;
  padding-left: 10px;
}

.option_list {
  width: 100%;
}

.option_list__left {
  display: inline-block;
  width: 50%;
  float: left;
}

.option_list__right {
  display: inline-block;
  width: 50%;
  float: right;
  padding-top: 16vw;
  padding-left: 2.66vw;
}

.option_list__item {
  margin-top: 5.33vw;
}

.option_list__item__image {
  display: block;
  width: 37.33vw;
  height: 32vw;
}

.option_list__item__image img {
  width: 37.33vw;
  height: 32vw;
  object-fit: cover;
}

.option_list__item__title {
  position: relative;
  display: block;
  width: 37.33vw;
  height: 10.66vw;
  margin-top: -5.33vw;
  margin-left: 2.66vw;
  padding-top: 2.66vw;
  background-color: #ffffff;
  box-shadow: 0 3px 20px 0 rgba(0, 0, 0, 0.1);
  font-family: HiraKakuProN-W6;
  font-size: 3.2vw;
  font-weight: normal;
  font-style: normal;
  font-stretch: normal;
  line-height: 1.67;
  letter-spacing: normal;
  text-align: center;
  color: #000000;
  z-index: 2;
}

.about_grid__item__description__navigation {
  position: absolute;
  left: 50%;
  bottom: 5px;
  transform: translate(-50%, 0);
  width: calc(100% - 10px);
}
.about_grid__item__description__navigation a {
  font-size: 2.66vw;
  font-weight: normal;
  line-height: 1.4;
  color: #222222;
  background-color: #ffffff;
  border: 1px solid;
  text-decoration: none;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 8vw;
}
.about_grid__item__description__navigation a::after {
  content: "";
  position: absolute;
  width: 5px;
  height: 5px;
  top: 50%;
  right: 8px;
  border-bottom: 1px solid;
  border-right: 1px solid;
  transform: translate(-50%, -70%) rotate(45deg);
}

@media only screen and (min-width: 500px) {
  .about_grid__item__description__number {
    height: 2vw;
    font-size: 3.66vw;
    margin-top: 0;
  }
  .about_grid__item__description__title {
    margin-top: 3.5vw;
    font-size: 100%;
  }
  .about_grid__item__description__content {
    margin: 1vw 1.33vw 2.13vw 1.33vw;
    line-height: 1.4;
    font-size: 76%;
  }
  .left_image__image {
    width: 47.33%;
    height: 100%;
  }
  .left_image__text {
    width: 48%;
  }
  .right_image__text {
    width: 48%;
  }
  .right_image__image {
    width: 47.33%;
    height: 100%;
  }
  .about_grid__item {
    width: 33.33%;
    height: 100%;
  }
  .about_grid__item__image {
    width: 100%;
  }
  .about_grid__item__description {
    position: relative;
    width: 100%;
    height: 350px;
  }
  .about_grid__item__description__navigation {
    position: absolute;
    left: 50%;
    bottom: 10px;
    transform: translate(-50%, 0);
    width: calc(100% - 20px);
  }
  .about_grid__item__description__navigation a {
    font-size: 13px;
    font-weight: normal;
    line-height: 1.4;
    color: #222222;
    background-color: #ffffff;
    border: 1px solid;
    text-decoration: none;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 40px;
  }
  .about_grid__item__description__navigation a::after {
    content: "";
    position: absolute;
    width: 10px;
    height: 10px;
    top: 50%;
    right: 10px;
    border-bottom: 1px solid;
    border-right: 1px solid;
    transform: translate(-50%, -70%) rotate(45deg);
  }
  .about_grid {
    width: 100%;
  }
  .table__table th {
    height: 3vw;
  }
  .table__table td {
    height: 3vw;
  }
  .panel {
    margin: 0.66vw;
  }
  .panel__title {
    height: 4vw;
    font-size: 1.5vw;
  }
  .panel__content__description {
    font-size: 1.3vw;
  }
  .panel__content__list {
    font-size: 1vw;
    margin: 2.13vw 2.66vw 1.6vw 2.66vw;
  }
  .about_grid {
    margin-top: 4vw;
  }
  .option_list__item__image {
    display: block;
    width: 100%;
    height: 123px;
  }
  .option_list__item__image img {
    width: 90%;
    height: 130%;
    object-fit: cover;
  }
  .option_list__item {
    margin-top: 2.33vw;
  }
  .option_list__item__title {
    position: relative;
    display: block;
    width: 90%;
    height: 35px;
    margin-top: -0.8%;
    margin-left: 1vw;
    padding-top: 0.5vw;
    background-color: #ffffff;
    box-shadow: 0 3px 20px 0 rgba(0, 0, 0, 0.1);
    font-family: HiraKakuProN-W6;
    font-size: 70%;
    font-weight: normal;
    font-style: normal;
    font-stretch: normal;
    line-height: 1.67;
    letter-spacing: normal;
    text-align: center;
    color: #000000;
    z-index: 2;
  }
  .option_list__right {
    display: inline-block;
    width: 50%;
    padding-top: 4vw;
    padding-left: 0.66vw;
  }
  .option_list__left {
    display: inline-block;
    width: 50%;
  }
  .image_with_sticky_right {
    margin-left: -2.33vw;
  }  
  .image_with_sticky {
    margin: 0 -6%;
  }
}