.sp-only{
  display: none;
}
.right__buttons{
  display: none !important;
}
.l-floating-side-navigation {
  position: fixed;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  z-index: 9999;
  font-family: "Noto Sans JP", sans-serif;
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border-radius: 0.5rem 0 0 0.5rem;
  box-shadow: -0.25rem 0 1.25rem rgba(0, 0, 0, 0.15);
  overflow: visible;
  /* JavaScriptで制御するためtransition削除 */
}

/* 展開状態 */
.l-floating-side-navigation.is-expanded {
  width: 15rem;
}

/* 展開状態のテキストスタイル */
.l-floating-side-navigation.is-expanded .link-text {
  opacity: 1;
  color: #374151;
  pointer-events: auto;
  width: auto;
  overflow: visible;
}

.l-floating-side-navigation.is-expanded .link-icon {
  margin-right: 0.75rem;
}

.l-floating-side-navigation.is-expanded .l-floating-side-navigation__link {
  padding: 1rem 1.25rem;
  justify-content: flex-start;
}

/* 縮小状態 - 白背景を確実に表示 */
.l-floating-side-navigation.is-collapsed {
  width: 3.75rem;
  background: #ffffff; /* 明示的に白背景指定 */
  border-radius: 0.5rem 0 0 0.5rem;
  box-shadow: -0.25rem 0 1.25rem rgba(0, 0, 0, 0.15);
}

/* 各メニューアイテム */
.l-floating-side-navigation__item {
  position: relative;
  border-bottom: 1px solid #f3f4f6;
  transition: transform 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease;
}

.l-floating-side-navigation__item:last-child {
  border-bottom: none;
}

/* 展開状態でのホバー背景色 */
.l-floating-side-navigation.is-expanded .l-floating-side-navigation__item:hover {
  background: #f8fafc;
}

/* リンク */
.l-floating-side-navigation__link {
  display: flex;
  align-items: center;
  padding: 1rem 1.25rem;
  color: #374151;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
  transition: color 0.3s ease, padding 0.5s ease, justify-content 0.5s ease;
  position: relative;
  min-height: 3.5rem;
}

.l-floating-side-navigation__link:hover {
  color: #033b8c;
}

.l-floating-side-navigation__link:focus {
  outline: 2px solid #033b8c;
  outline-offset: -2px;
  background: #f0f9ff;
}

/* アイコン */
.l-floating-side-navigation__link .link-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  margin-right: 0.75rem;
  color: #6b7280;
  transition: color 0.3s ease, 
              margin-right 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
}

.l-floating-side-navigation__link:hover .link-icon {
  color: #033b8c;
}

/* テキスト */
.l-floating-side-navigation__link .link-text {
  flex: 1;
  line-height: 1.4;
  transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1), 
              color 0.5s cubic-bezier(0.4, 0, 0.2, 1),
              width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 1;
  transform: translateX(0);
  white-space: nowrap;
  overflow: hidden;
}

/* 縮小状態のスタイル - アイコンを白背景内に配置 */
.l-floating-side-navigation.is-collapsed .l-floating-side-navigation__link {
  padding: 1rem;
  justify-content: center;
  width: 3.75rem; /* 縮小幅と同じに設定 */
  margin: 0;
}

.l-floating-side-navigation.is-collapsed .link-icon {
  margin-right: 0;
  position: relative;
  z-index: 1;
}

.l-floating-side-navigation.is-collapsed .link-text {
  opacity: 0;
  color: transparent;
  pointer-events: none;
  width: 0;
  overflow: hidden;
  /* test */
  height: 0;
  line-height: 0;
}

/* ホバー時の展開エフェクト - JavaScriptで制御するため削除 */

/* 特定アイテムのアイコンカラー */
.l-floating-side-navigation__item[data-nav-item="catalog"] .link-icon {
  color: #059669; /* グリーン - ダウンロード系 */
}

.l-floating-side-navigation__item[data-nav-item="software"] .link-icon {
  color: #0891b2; /* シアンブルー - ダウンロード系 */
}

.l-floating-side-navigation__item[data-nav-item="demo"] .link-icon {
  color: #7c3aed; /* 紫 - デモ・プレミアム系 */
}

.l-floating-side-navigation__item[data-nav-item="contact"] .link-icon {
  color: #ea580c; /* オレンジ - アクション系 */
}

/* レスポンシブ対応 */
@media screen and (max-width: 80rem) { /* 1280px */
  .l-floating-side-navigation.is-expanded {
    width: 13.75rem;
  }
  
  .l-floating-side-navigation.is-collapsed {
    width: 3.5rem;
  }
  
  .l-floating-side-navigation__link {
    padding: 0.875rem 1rem;
    font-size: 0.8125rem;
  }
  
  .l-floating-side-navigation.is-collapsed .l-floating-side-navigation__item:hover {
    transform: translateX(-14.5rem);
  }
  
  .l-floating-side-navigation.is-collapsed .l-floating-side-navigation__item:hover .l-floating-side-navigation__link {
    width: 18.5rem;
  }
}

@media screen and (max-width: 50.625rem) { /* 810px */
  .l-floating-side-navigation {
    top: auto;
    bottom: 1.25rem;
    right: 1.25rem;
    transform: none;
    border-radius: 0.5rem;
    flex-direction: row;
    width: auto;
    max-width: calc(100vw - 2.5rem);
  }
  
  .l-floating-side-navigation.is-expanded,
  .l-floating-side-navigation.is-collapsed {
    width: auto;
  }
  
  .l-floating-side-navigation__item {
    border-bottom: none;
    border-right: 1px solid #f3f4f6;
    flex: 1;
    transform: none !important;
  }
  
  .l-floating-side-navigation__item:last-child {
    border-right: none;
  }
  
  .l-floating-side-navigation__link {
    padding: 0.75rem;
    flex-direction: column;
    text-align: center;
    font-size: 0.6875rem;
    min-height: auto;
  }
  
  .l-floating-side-navigation__link .link-icon {
    margin-right: 0;
    margin-bottom: 0.25rem;
  }
  
  .l-floating-side-navigation.is-collapsed .link-text {
    opacity: 0;
    height: 0;
  }
  
  .l-floating-side-navigation.is-collapsed .l-floating-side-navigation__item:hover .link-text {
    opacity: 1;
    height: auto;
    margin-top: 0.25rem;
  }
  .sp-only{
    display: block;
  }
  .link-text{
    text-align: center;
  }
}

@media screen and (max-width: 30rem) { /* 480px */
  .l-floating-side-navigation {
    bottom: 0.625rem;
    right: 0.625rem;
    max-width: calc(100vw - 1.25rem);
  }
  
  .l-floating-side-navigation__link {
    padding: 0.625rem 0.5rem;
    font-size: 0.625rem;
  }
}

/* アクセシビリティ */
@media (prefers-reduced-motion: reduce) {
  .l-floating-side-navigation,
  .l-floating-side-navigation__item,
  .l-floating-side-navigation__link,
  .l-floating-side-navigation__link .link-text,
  .l-floating-side-navigation__link .link-icon {
    transition: none;
  }
}

/* フォーカス管理 */
.l-floating-side-navigation__link:focus-visible {
  outline: 2px solid #033b8c;
  outline-offset: 2px;
}