@charset "UTF-8";

.mv {
  background: rgba(108, 211, 248, 0.25);
}
.box {
  padding: 25px 0;
  max-width: 768px;
  margin: 0 auto;
}
.box_inner {
  display: flex;
  justify-content: center;
  align-items: center;
}
h1.mv_ttl {
  font-size: 30px;
  margin-right: 40px;
}
h1 div {
  line-height: 2;
}
h1 .arrow {
  padding: 3px 3px 3px 6px;
  color: #fff;
  background: #31BDEF;
  margin-left: 3px;
  margin-right: 25px;
}
h1 .arrow::after{
  content: '';
  border-color: transparent;
  border-left-color: #31BDEF;
  border-style: solid;
  border-width: 20.5px 0 20.5px 24px;
  position: absolute;
  top: 117px;
  left: calc(50% + 18.5px);
}
.text_red {
  color: #F45365;
}
.mv_img {
  max-width: 210px;
  margin: 0 auto;
}
.character_name {
  font-size: 10px;
  text-align: center;
}

/* タブレット・スマホ用 */
@media screen and (max-width: 1064px) {
  h1 .arrow::after {
    top: 177px;
  }
}
@media screen and (max-width: 1023px) {
  h1 .arrow::after {
    top: 117px;
  }
}
@media screen and (max-width: 768px) {
  .box_inner {
    flex-direction: column
  }
  h1.mv_ttl {
    font-size: 24px;
    line-height: 1.5;
    margin-bottom: 20px;
    margin-right: 0;
  }
  h1 div {
    text-align: center;
  }
  h1 .arrow::after {
    border-width: 17px 0 17px 18px;
    top: 92px;
    left: calc( 50% + 113.5px);
  }
  .mv_img {
    max-width: 180px;
  }
}

@media screen and (max-width: 480px) {
  h1.mv_ttl {
    font-size: 20px;
  }
  h1 .arrow::after {
    border-width: 15.5px 0 13px 20px;
    top: 90.5px;
    left: calc( 50% + 93.5px );
  }
}

@media screen and (max-width: 320px) {
  h1.mv_ttl {
    font-size: 18px;
  }
  h1 .arrow {
    margin-right: 20px;
  }
  h1 .arrow::after {
    border-width: 13.9px 0 12.8px 18px;
    top: 79.5px;
    left: calc( 50% + 86px);
  }
  .mv_img {
    max-width: 160px;
  }
}

/* サイドバー非表示に伴うコンテンツの中央揃え */
.main {
  margin: auto;
}

/* タブの背景色の変更 */
#index-tab-1:checked~.index-tab-buttons .index-tab-button[for=index-tab-1],
#index-tab-2:checked~.index-tab-buttons .index-tab-button[for=index-tab-2],
#index-tab-3:checked~.index-tab-buttons .index-tab-button[for=index-tab-3],
#index-tab-4:checked~.index-tab-buttons .index-tab-button[for=index-tab-4] {
  background: none #31BDEF;
  border: 1px solid #31BDEF;
}