/* =========================================
           [5] ドロワーナビゲーション (box-sizing計算済版)
           ========================================= */
        :root {
            --drawer-width: 75%;
            --drawer-bg: #FFFFFF;
            --overlay-bg: rgba(0,0,0,0.6);
            --ham-top: 22px;
            --ham-offset: 22px;
            --line-width: 30px;
            --line-weight: 1px;
            --line-color: #000000;
            --line-color-active: #000000;
            --line-gap: 8px;
        }

        body.is-drawer-open {
            overflow: hidden !important;
        }

        /* 【ワープ対策】ドロワーが開いている間、演出テキストを隠す */
        .is-drawer-open .text-group {
            opacity: 0 !important;
            visibility: hidden !important;
        }

        /* ハンバーガーボタン本体 */
        .drawer-hamburger {
            position: fixed;
            top: var(--ham-top);
            width: var(--line-width);
            /* box-sizing: border-boxの影響を受けないよう、paddingを排除し高さを厳密に指定 */
            height: calc(var(--line-weight) * 3 + var(--line-gap) * 2);
            z-index: 10000;
            cursor: pointer;
            transition: transform 0.4s cubic-bezier(0.2, 0.64, 0.21, 1), opacity 0.4s;
        }

        /* クリック領域を広げるための疑似要素（見た目の線に影響を与えない） */
        .drawer-hamburger::before {
            content: "";
            position: absolute;
            top: -10px;
            left: -10px;
            right: -10px;
            bottom: -10px;
        }

        /* 独立ON/OFFロジック用クラス */
        .drawer-hamburger.is-hidden {
            transform: translateY(-100px);
            opacity: 0;
            pointer-events: none;
        }

        body.drawer-left .drawer-hamburger { left: var(--ham-offset); right: auto; }
        body.drawer-right .drawer-hamburger { right: var(--ham-offset); left: auto; }

        /* 横線（span）：box-sizing環境下でもwidth:100%が短くならないよう調整 */
        .drawer-hamburger span {
            display: block; 
            width: 100%;
            height: var(--line-weight);
            background-color: var(--line-color);
            transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
            position: absolute;
            left: 0; /* paddingを消したため基準を0に固定 */
        }

        .line-1 { top: 0; }
        .line-2 { top: calc(var(--line-weight) + var(--line-gap)); }
        .line-3 { top: calc((var(--line-weight) + var(--line-gap)) * 2); }

        /* アイコン変形（×印） */
        .is-drawer-open .drawer-hamburger span { background-color: var(--line-color-active); }
        .is-drawer-open .line-1 { transform: translateY(calc(var(--line-weight) + var(--line-gap))) rotate(45deg); }
        .is-drawer-open .line-2 { opacity: 0; transform: scaleX(0); }
        .is-drawer-open .line-3 { transform: translateY(calc((var(--line-weight) + var(--line-gap)) * -1)) rotate(-45deg); }

        /* ナビ本体 */
        .drawer-nav {
            position: fixed;
            top: 0;
            width: var(--drawer-width);
            height: 100%;
            background: var(--drawer-bg);
            z-index: 9999;
            padding: 100px 20px;
            box-sizing: border-box;
            transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1);
            overflow-y: auto;
            pointer-events: none;
        }
        body.drawer-left .drawer-nav { left: 0; transform: translateX(-101%); }
        body.drawer-right .drawer-nav { right: 0; transform: translateX(101%); }
        .is-drawer-open .drawer-nav { transform: translateX(0) !important; pointer-events: auto; }

        .drawer-menu { list-style: none; padding: 0; margin: 0; }
        .drawer-menu li { margin-bottom: 25px; opacity: 0; transition: opacity 0.4s ease, transform 0.4s ease; }
        body.drawer-left .drawer-menu li { transform: translateX(-30px); }
        body.drawer-right .drawer-menu li { transform: translateX(30px); }
        .is-drawer-open .drawer-menu li { opacity: 1; transform: translateX(0) !important; }
        .is-drawer-open .drawer-menu li:nth-child(1) { transition-delay: 0.25s; }
        .is-drawer-open .drawer-menu li:nth-child(2) { transition-delay: 0.30s; }
        .is-drawer-open .drawer-menu li:nth-child(3) { transition-delay: 0.35s; }
        .is-drawer-open .drawer-menu li:nth-child(4) { transition-delay: 0.40s; }
        .is-drawer-open .drawer-menu li:nth-child(5) { transition-delay: 0.45s; }
        .drawer-menu li a { color: #000; text-decoration: none; font-size: 20px; font-weight: bold; border-bottom: 1px solid #eee; display: block; padding: 10px 0; }

        /* オーバーレイ */
        .drawer-overlay {
            position: fixed;
            top: 0; left: 0; width: 100%; height: 100%;
            background: var(--overlay-bg);
            z-index: 9998;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.4s;
        }
        .is-drawer-open .drawer-overlay { opacity: 1; visibility: visible; }



.drawer-menu li img{
 height: 15px;
 vertical-align: 2px;
}

.drawer-menu li:nth-of-type(n + 4) a{
 background-image: url(../image/common/extern-link_bk.png);
 background-repeat: no-repeat;
 background-size: auto 12px;
 display: inline-block;
 background-position: right center;
 padding-right: 20px;
}

.______{}

        /* =========================================
           [6] ヘッダー & ページトップ
           ========================================= */
        header {
            width: 100%;
            position: fixed;
            top: 0;
            left: 0;
            z-index: 9999 !important;
            background-color: #FFFFFF;
            border-bottom: 1px solid #e9e9e9;
            transition: transform 0.4s cubic-bezier(0.2, 0.64, 0.21, 1);
        }

        header.is-hidden {
            transform: translateY(-100%);
        }

        #page-top {
            position: fixed;
            right: 25px;
            bottom: 25px;
            z-index: 999;
            background: rgba(255, 255, 255, 0.9);
            color: #000;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
            opacity: 0;
            visibility: hidden;
            transition: 0.3s;
            font-size: 10px;
            font-weight: bold;
        }

        #page-top.is-visible {
            opacity: 1;
            visibility: visible;
        }




        
.______PC{}
/* =========================================================
   BGM UI - PC
   ========================================================= */
@media (min-width: 768px){

.PLAY .bgmCtrl{
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
    background:rgba(20,20,20,0.3);
}

  .bgmCtrl{
    position: absolute;
    z-index: 3;
    left: max(14px, env(safe-area-inset-left));
    right: max(14px, env(safe-area-inset-right));
    bottom: max(14px, env(safe-area-inset-bottom));
    display: flex;
    gap: 10px;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    border-radius: 14px;
    background: var(--panel-bg);
    border: 1px solid var(--panel-bd);
    /*
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    */
  }

  .bgmLeft{
    display:flex;
    gap:10px;
    align-items:center;
    min-width:0;
  }

  .bgmBtn{
    appearance:none;
    border: 1px solid rgba(255,255,255,.22);
    background: rgba(255,255,255,.10);
    color:#fff;
    border-radius: 999px;
    padding: 10px 14px;
    font-size: 14px;
    line-height: 1;
    cursor: pointer;
    display:flex;
    gap: 8px;
    align-items:center;
    user-select: none;
  }
  .bgmBtn:active{ transform: translateY(1px); }

  /*
  .bgmLabel{
    font-size: 12px;
    opacity: .88;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 42vw;
  }
  */

  .bgmRight{
    display:flex;
    gap:10px;
    align-items:center;
  }

  .vol{
    width: min(30vw, 160px);
    accent-color: #fff;
  }

  .chip{
    font-size: 12px;
    opacity: .75;
    padding: 6px 10px;
    border-radius: 999px;
    border: 1px solid rgba(255,255,255,.18);
    background: rgba(0,0,0,.20);
    color:#fff;
  }
}

.______SP{}
/* =========================================================
   BGM UI - SP（ミニマム）
   ・高さ/余白を削る
   ・ラベルは非表示（or 超短め）
   ・ボタンはアイコン寄り想定で小さく
   ・スライダー幅を短く
   ========================================================= */
@media (max-width: 767px){

.PLAY .bgmCtrl{
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
    background:rgba(20,20,20,0.3);
}

.TOP-PAGE .bgmCtrl{
    top: max(10px, env(safe-area-inset-bottom));
}

.PLAY .bgmCtrl{
    bottom: max(10px, env(safe-area-inset-bottom));
}

  .bgmCtrl{
    position: absolute;
    z-index: 3;
    left: max(10px, env(safe-area-inset-left));
    right: max(10px, env(safe-area-inset-right));

    display: flex;
    gap: 8px;
    align-items: center;
    justify-content: space-between;
    padding: 8px 10px;
    border-radius: 12px;
    background: var(--panel-bg);
    border: 1px solid var(--panel-bd);
    /*
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    */
  }

  .bgmLeft{
    display:flex;
    gap:8px;
    align-items:center;
    min-width:0;
  }

  .bgmBtn{
    appearance:none;
    border: 1px solid rgba(255,255,255,.20);
    background: rgba(255,255,255,.08);
    color:#fff;
    border-radius: 999px;
    padding: 8px 10px;
    font-size: 13px;
    line-height: 1;
    cursor: pointer;
    display:flex;
    gap: 6px;
    align-items:center;
    user-select: none;
  }
  .bgmBtn:active{ transform: translateY(1px); }

  /* SPは情報量を減らす：ラベルは消す（必要なら下のコメント外して短表示） */
  .bgmLabel{ display:none; }
  /* .bgmLabel{
    font-size: 11px;
    opacity: .85;
    max-width: 34vw;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  } */

  .bgmRight{
    display:flex;
    gap:8px;
    align-items:center;
    flex: 0 0 auto;
  }

  .vol{
    width: min(34vw, 120px);
    accent-color: #fff;
  }

  /* チップも小さく＆短く（邪魔なら消してもOK） */
  .chip{
    font-size: 11px;
    opacity: .72;
    padding: 5px 8px;
    border-radius: 999px;
    border: 1px solid rgba(255,255,255,.16);
    background: rgba(0,0,0,.18);
    color:#fff;
    white-space: nowrap;
  }
}

/* アイコンのベース */
.bgmIcon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1em;   /* サイズは適宜調整 */
  height: 1em;
  font-style: normal;
  cursor: pointer;
}

/* 一時停止（Playing中）のスタイル */
.playing-icon {
  position: relative;
  width: 12px;  /* 全体の幅 */
  height: 14px; /* 全体の高さ */
  border-left: 4px solid currentColor;  /* 左の棒 */
  border-right: 4px solid currentColor; /* 右の棒 */
  box-sizing: border-box;
}


/* =========================================================
   任意：動き苦手設定の人には止める
   ========================================================= */
@media (prefers-reduced-motion: reduce){
  .fadeStep{ opacity:1; transform:none; filter:none; animation:none; }
}