@keyframes scroll-hint-appear {
  0% {
    transform: translateX(40px);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  50%,
  100% {
    transform: translateX(-40px);
    opacity: 0;
  }
}

.scroll-hint-icon {
  position: absolute;
  top: calc(50% - 25px);
  left: calc(50% - 60px);
  box-sizing: border-box;
  width: 120px;
  height: auto;
  border-radius: 5px;
  transition: opacity .3s;
  opacity: 0;
  background: rgba(0, 0, 0, .7);
  text-align: center;
  padding: 20px 10px 10px 10px;
  /*
   * flex 縦並びにすることで、継承した font-size / line-height でアイコンの高さが変わらない
   * (高さは固定 75px + ラベル)。ラベルが複数行になってもコンテナの下端を超えないよう、ラベルを縮めて収める。
   */
  display: flex;
  flex-direction: column;
  align-items: center;
  max-height: calc(50cqh + 25px);
  transform: scale(min(var(--scroll-hint-icon-scale-h, 1), var(--scroll-hint-icon-scale-w, 1)));
}

.scroll-hint-icon-wrap {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  max-height: 100%;
  pointer-events: none;
  container-type: size;
  /* アイコンが何らかの理由で収まらない場合でも、コンテナの縦横スクロールを発生させない */
  overflow: hidden;
}

.scroll-hint-text {
  display: block;
  font-size: 0.625rem;
  color: #FFF;
  margin-top: 5px;
  line-height: 1.5;
  align-self: stretch;
  min-height: 0;
  overflow: hidden;
}

.scroll-hint-icon-wrap.is-active .scroll-hint-icon {
  opacity: .8;
}

.scroll-hint-icon:before {
  display: inline-block;
  flex: none;
  width: 40px;
  height: 40px;
  color: #FFF;
  vertical-align: middle;
  text-align: center;
  content: "";
  background-size: contain;
  background-position: center center;
  background-repeat: no-repeat;
  background-image: url(data:image/svg+xml;base64,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);
}

.scroll-hint-icon:after {
  content: "";
  width: 34px;
  height: 14px;
  display: block;
  position: absolute;
  top: 10px;
  left: 50%;
  margin-left: -20px;
  background-repeat: no-repeat;
  background-image: url(data:image/svg+xml;base64,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);
  opacity: 0;
  transition-delay: 2.4s;
}

.scroll-hint-icon-wrap.is-active .scroll-hint-icon:after {
  opacity: 1;
}

.scroll-hint-icon-wrap.is-active .scroll-hint-icon:before {
  animation: scroll-hint-appear 1.2s linear;
  animation-iteration-count: 2;
}

/*
 * コンテナがアイコンより小さい場合 (行数の少ないテーブル、幅の狭いコンテナなど)、
 * アイコンがはみ出して縦横スクロールが出てしまうため、コンテナの大きさに応じて縮小する。
 * 基準はスクロールコンテナの内側の大きさ (.scroll-hint-icon-wrap の大きさ)。
 *
 * アイコンは、幅 120px、高さは固定 75px + ラベル (.625rem × line-height 1.5 = .9375rem)。
 * ラベルが rem に追従するため、ラベルを含む閾値は rem を含めて算出している。
 * 閾値には小数丸めの誤差用に 1px の余裕を持たせている。
 * 高さ 101px + 1.875rem (16px 基準で 131px) 以上かつ幅 120px 以上では従来の表示から変わらない。
 * container-type: size 非対応のブラウザでは縮小せず、はみ出し分は wrap の overflow: hidden で切り取る。
 */

/* 高さ: 縦中央に置く (従来は上寄り) */
@container (height < calc(101px + 1.875rem)) {
  .scroll-hint-icon {
    top: 50%;
    max-height: 100cqh;
    /* min() 非対応のブラウザ向けのフォールバック (縮小はしないが縦中央には置く) */
    transform: translateY(-50%);
    transform: translateY(-50%) scale(min(var(--scroll-hint-icon-scale-h, 1), var(--scroll-hint-icon-scale-w, 1)));
  }
}

/* 高さ: ラベルを含む高さに収まらない場合はラベルを隠す (約 70px) */
@container (height < calc(76px + .9375rem)) {
  .scroll-hint-icon {
    padding-bottom: 10px;
  }

  .scroll-hint-text {
    display: none;
  }
}

/* 高さ: 矢印も隠して手のアイコンのみにする (約 60px) */
@container (height < 70px) {
  .scroll-hint-icon {
    padding-top: 10px;
  }

  .scroll-hint-icon:after {
    display: none;
  }
}

@container (height < 60px) {
  .scroll-hint-icon {
    --scroll-hint-icon-scale-h: .7;
  }
}

@container (height < 42px) {
  .scroll-hint-icon {
    --scroll-hint-icon-scale-h: .5;
  }
}

@container (height < 30px) {
  .scroll-hint-icon {
    --scroll-hint-icon-scale-h: .35;
  }
}

/* 幅: 縮小倍率 × 120px が幅に収まるようにする */
@container (width < 120px) {
  .scroll-hint-icon {
    --scroll-hint-icon-scale-w: .7;
  }
}

@container (width < 84px) {
  .scroll-hint-icon {
    --scroll-hint-icon-scale-w: .5;
  }
}

@container (width < 60px) {
  .scroll-hint-icon {
    --scroll-hint-icon-scale-w: .35;
  }
}

/*
 * 最小サイズ (高さ約 21px、幅約 42px) でも収まらない大きさでは、ヒントを出す意味がないため表示しない。
 * display: none にすると JS (updateStatus) がアイコンの位置を取得できず、画面外でも表示済みと判定されるため、
 * レイアウトを保つ visibility: hidden を使う。
 */
@container (height < 21px) or (width < 42px) {
  .scroll-hint-icon {
    visibility: hidden;
  }
}

.scroll-hint-icon-white {
  background-color: #FFF;
  box-shadow: 0 4px 5px rgba(0, 0, 0, .4);
}

.scroll-hint-icon-white:before {
  background-image: url(data:image/svg+xml;base64,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);
}

.scroll-hint-icon-white:after {
  background-image: url(data:image/svg+xml;base64,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);
}

.scroll-hint-icon-white .scroll-hint-text {
  color: #000;
}



.scroll-hint-shadow-wrap {
  position: relative;
}

.scroll-hint-shadow-wrap::after {
  content: "";
  width: 20px;
  height: 100%;
  background: linear-gradient(270deg, rgba(0, 0, 0, .15) 0, rgba(0, 0, 0, 0) 16px, rgba(0, 0, 0, 0));
  position: absolute;
  top: 0;
  right: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0;
  visibility: hidden;
}

.scroll-hint-shadow-wrap::before {
  content: "";
  width: 20px;
  height: 100%;
  background: linear-gradient(90deg, rgba(0, 0, 0, .15) 0, rgba(0, 0, 0, 0) 16px, rgba(0, 0, 0, 0));
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0;
  visibility: hidden;
}

.scroll-hint-shadow-wrap:has(.scroll-hint.is-right-scrollable)::after,
.scroll-hint-shadow-wrap.is-right-scrollable::after
 {
  opacity: 1;
  visibility: visible;
}

.scroll-hint-shadow-wrap:has(.scroll-hint.is-left-scrollable)::before,
.scroll-hint-shadow-wrap.is-left-scrollable::before
 {
  opacity: 1;
  visibility: visible;
}