/* =====================================================================
   bookbottle.css ─ BookBottle モード v2.3
   ・アプリシェル：ルート 100dvh 固定。body はスクロール禁止。スクロールは .bkb-sheet-body / .bkb-modal-body 内のみ
   ・.bkb-embed（?bbf=1 で iframe 内に読まれた既存ページ）：ヘッダー・フッター・側柱・背景演出を隠す
   ・.bkb-backpill（モード ON で通常ページを直接開いたとき）：右下「本に戻る」
   ===================================================================== */
:root{
  --bkb-bg-dark:#4f5356; --bkb-bg-light:#d9dadc; --bkb-accent:#3b82f6; --bkb-btn:var(--bkb-accent); --bkb-btn-fg:#fff; --bkb-radius-btn:999px;
  --bkb-bg:var(--bkb-bg-dark); --bkb-fg:#f4f4f5; --bkb-fg2:rgba(244,244,245,.72);
  --bkb-panel:#17171b; --bkb-panel2:#1f1f25; --bkb-line:rgba(255,255,255,.1); --bkb-shadow:rgba(0,0,0,.45);
  --bkb-top:52px; --bkb-bottom:56px; --bkb-safe-t:env(safe-area-inset-top,0px); --bkb-safe-b:env(safe-area-inset-bottom,0px);
  --bkb-radius:16px; --bkb-scrim:rgba(0,0,0,.7); --bkb-font:"Yu Gothic","Hiragino Kaku Gothic ProN","Noto Sans JP",system-ui,sans-serif;
}

/* ── テーマ：ライト ── */
html.bkb-light{
  --bkb-bg:var(--bkb-bg-light); --bkb-fg:#141418; --bkb-fg2:rgba(20,20,24,.62);
  --bkb-panel:#ffffff; --bkb-panel2:#f2f2f5; --bkb-line:rgba(0,0,0,.12);
  --bkb-scrim:rgba(255,255,255,.82); --bkb-shadow:rgba(0,0,0,.16);
}
@media (prefers-color-scheme: light){
  html.bkb-auto{
    --bkb-bg:var(--bkb-bg-light); --bkb-fg:#141418; --bkb-fg2:rgba(20,20,24,.62);
    --bkb-panel:#ffffff; --bkb-panel2:#f2f2f5; --bkb-line:rgba(0,0,0,.12);
    --bkb-scrim:rgba(255,255,255,.82); --bkb-shadow:rgba(0,0,0,.16);
  }
}
html.bkb-light .bkb-toast{background:rgba(255,255,255,.96);color:#141418;}
html.bkb-light .bkb-modal-head{background:var(--bkb-panel);color:var(--bkb-fg);}
html.bkb-light .bkb-dim{background:rgba(0,0,0,.32);}
/* ── アプリシェル：高さを作らない ── */
html.bkb-root, html.bkb-root body.bkb-body{height:100%;margin:0;padding:0;overflow:hidden!important;overscroll-behavior:none;background:var(--bkb-bg);color:var(--bkb-fg);font-family:var(--bkb-font);-webkit-text-size-adjust:100%;}
html.bkb-root{height:100dvh;}
.bkb-app{position:fixed;inset:0;height:100dvh;width:100vw;overflow:hidden;touch-action:manipulation;-webkit-user-select:none;user-select:none;}
.bkb-seo{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;}
/* 本体 */
.bkb-stage{position:absolute;inset:0;background:var(--bkb-bg);display:flex;align-items:center;justify-content:center;background:var(--bkb-bg);}
.bkb-book{position:absolute;left:0;right:0;top:calc(var(--bkb-top) + var(--bkb-safe-t));bottom:calc(var(--bkb-bottom) + var(--bkb-safe-b));overflow:hidden;}
body.bkb-immersive .bkb-book{top:0;bottom:0;}
.bkb-book .flipbook-main-wrapper,.bkb-book .flipbook-wrapper{background:transparent!important;}
.bkb-book .flipbook-menu,.bkb-book .flipbook-menu-wrapper{display:none!important;}
body.bkb-builtin .bkb-book .flipbook-menu,body.bkb-builtin .bkb-book .flipbook-menu-wrapper{display:flex!important;}
.bkb-book .flipbook-currentPageHolder,.bkb-book .flipbook-progress-bar,.bkb-book .flipbook-loading-progress{display:none!important;}
.bkb-book .flipbook-nav-arrow{opacity:.55;}
body.bkb-noarrows .bkb-book .flipbook-nav-arrow{display:none!important;}
/* 軽量内蔵ビューア（フォールバック） */
.bkb-simple{position:absolute;left:0;right:0;top:calc(var(--bkb-top) + var(--bkb-safe-t));bottom:calc(var(--bkb-bottom) + var(--bkb-safe-b));overflow:hidden;}
body.bkb-immersive .bkb-simple{top:0;bottom:0;}
.bkb-simple-track{display:flex;height:100%;width:100%;align-items:stretch;will-change:transform;transition:transform .32s cubic-bezier(.2,.8,.2,1);}
.bkb-simple-track.bkb-notrans{transition:none;}
.bkb-simple-page{flex:0 0 100%;width:100%;height:100%;min-width:0;min-height:0;display:flex;align-items:center;justify-content:center;gap:0;padding:6px;box-sizing:border-box;}
.bkb-simple-page img{display:block;max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;background:#fff;box-shadow:0 6px 24px var(--bkb-shadow);}
/* 見開き：2枚で幅を分け合い、高さは必ず枠内に収める（PCで下がはみ出す不具合の修正） */
.bkb-simple-page.bkb-spread img{max-width:50%;max-height:100%;}
@supports (height:1dvh){ .bkb-simple-page img{max-height:100%;} }
.bkb-empty{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;text-align:center;padding:24px;color:var(--bkb-fg2);font-size:14px;line-height:1.9;z-index:1;}
.bkb-empty a{color:var(--bkb-accent);}
.bkb-loader{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:var(--bkb-bg);z-index:30;font-size:13px;color:var(--bkb-fg2);transition:opacity .3s;}
.bkb-loader[hidden]{display:none;}
.bkb-spin{width:26px;height:26px;border-radius:50%;border:3px solid rgba(255,255,255,.14);border-top-color:var(--bkb-accent);animation:bbspin .8s linear infinite;}
@keyframes bbspin{to{transform:rotate(360deg)}}
/* ── 上下オーバーレイ ── */
.bkb-top,.bkb-bottom{position:absolute;left:0;right:0;z-index:20;display:flex;align-items:center;gap:6px;padding:0 8px;transition:transform .28s ease,opacity .28s ease;}
.bkb-top{top:0;height:calc(var(--bkb-top) + var(--bkb-safe-t));padding-top:var(--bkb-safe-t);background:linear-gradient(var(--bkb-scrim),transparent);}
.bkb-bottom{bottom:0;height:calc(var(--bkb-bottom) + var(--bkb-safe-b));padding-bottom:var(--bkb-safe-b);background:linear-gradient(transparent,var(--bkb-scrim));}
body.bkb-immersive .bkb-top{transform:translateY(-110%);opacity:0;pointer-events:none;}
body.bkb-immersive .bkb-bottom{transform:translateY(110%);opacity:0;pointer-events:none;}
.bkb-ib{appearance:none;border:0;background:transparent;color:var(--bkb-fg);width:40px;height:40px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;flex:none;position:relative;text-decoration:none;}
.bkb-ib:hover{background:rgba(255,255,255,.1);}
.bkb-ib:active{transform:scale(.94);}
.bkb-dot{position:absolute;right:8px;top:8px;width:8px;height:8px;border-radius:50%;background:var(--bkb-accent);box-shadow:0 0 0 2px var(--bkb-bg);}
.bkb-logo{display:inline-flex;align-items:center;height:36px;max-width:120px;text-decoration:none;color:var(--bkb-fg);font-weight:800;font-size:13px;letter-spacing:.04em;overflow:hidden;white-space:nowrap;flex:none;}
.bkb-logo img{height:26px;width:auto;max-width:120px;object-fit:contain;display:block;}
.bkb-title{flex:1;min-width:0;display:flex;flex-direction:column;line-height:1.2;padding:0 4px;}
.bkb-title b{font-size:12px;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.bkb-title span{font-size:11px;color:var(--bkb-fg2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.bkb-actions{display:flex;gap:2px;flex:none;}
@media (max-width:480px){.bkb-logo{max-width:80px;} .bkb-logo span{display:none;} .bkb-actions .bkb-ib{width:36px;}}
.bkb-nav{width:44px;height:44px;}
.bkb-progress{flex:1;display:flex;align-items:center;gap:10px;min-width:0;padding:0 4px;}
.bkb-progress[hidden]{display:none;}
.bkb-progress input[type=range]{flex:1;min-width:0;accent-color:var(--bkb-accent);height:24px;cursor:pointer;}
body.bkb-rtl .bkb-progress input[type=range]{direction:rtl;}
.bkb-pagenum{font-size:11.5px;font-variant-numeric:tabular-nums;color:var(--bkb-fg2);white-space:nowrap;min-width:52px;text-align:right;}
/* ── シート（下から出るパネル）：内部だけスクロール可 ── */
.bkb-sheet{position:absolute;inset:0;z-index:40;display:flex;align-items:flex-end;justify-content:center;}
.bkb-sheet[hidden]{display:none;}
.bkb-sheet-in{position:relative;width:100%;max-width:720px;max-height:86dvh;background:var(--bkb-panel);color:var(--bkb-fg);border-radius:var(--bkb-radius) var(--bkb-radius) 0 0;box-shadow:0 -12px 40px rgba(0,0,0,.5);display:flex;flex-direction:column;animation:bbup .28s cubic-bezier(.2,.8,.2,1);padding-bottom:var(--bkb-safe-b);}
.bkb-sheet-full .bkb-sheet-in{max-height:96dvh;height:96dvh;}
@keyframes bbup{from{transform:translateY(40px);opacity:0}to{transform:none;opacity:1}}
.bkb-sheet-bar{display:flex;justify-content:center;padding:8px 0 0;}
.bkb-sheet-bar span{width:40px;height:4px;border-radius:2px;background:rgba(255,255,255,.22);}
.bkb-sheet-close{position:absolute;right:8px;top:8px;}
.bkb-sheet-head{display:flex;align-items:center;justify-content:space-between;padding:8px 8px 6px 18px;border-bottom:1px solid var(--bkb-line);flex:none;}
.bkb-sheet-head b{font-size:15px;}
.bkb-sheet-body{overflow-y:auto;-webkit-overflow-scrolling:touch;overscroll-behavior:contain;padding:12px 16px 24px;flex:1;min-height:0;}
.bkb-dim{position:absolute;inset:0;background:rgba(0,0,0,.55);z-index:35;backdrop-filter:blur(2px);}
.bkb-dim[hidden]{display:none;}
/* メニュー：横スクロールのチップ列＋リスト */
.bkb-chips{display:flex;gap:8px;overflow-x:auto;-webkit-overflow-scrolling:touch;padding:4px 0 10px;scrollbar-width:none;}
.bkb-chips::-webkit-scrollbar{display:none;}
.bkb-chip{flex:none;border:1px solid var(--bkb-line);background:var(--bkb-panel2);color:var(--bkb-fg);border-radius:99px;padding:9px 14px;font-size:13px;font-weight:700;cursor:pointer;white-space:nowrap;text-decoration:none;display:inline-flex;align-items:center;gap:6px;}
.bkb-chip.on,.bkb-chip:hover{border-color:var(--bkb-accent);color:#fff;background:color-mix(in srgb,var(--bkb-accent) 22%,var(--bkb-panel2));}
.bkb-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px;}
.bkb-list a,.bkb-list button{display:flex;align-items:center;gap:10px;padding:12px 12px;border:1px solid var(--bkb-line);border-radius:12px;background:var(--bkb-panel2);color:var(--bkb-fg);text-decoration:none;font-size:13.5px;font-weight:700;cursor:pointer;text-align:left;appearance:none;min-height:46px;}
.bkb-list a:hover,.bkb-list button:hover{border-color:var(--bkb-accent);}
.bkb-list svg{flex:none;opacity:.85;}
.bkb-sec-title{font-size:11px;letter-spacing:.18em;color:var(--bkb-fg2);font-weight:800;margin:14px 0 8px;text-transform:uppercase;}
/* 目次 */
.bkb-toc-series{margin:0 0 18px;}
.bkb-toc-series-head{display:flex;gap:12px;align-items:center;margin:0 0 10px;}
.bkb-toc-series-head img{width:52px;height:70px;object-fit:cover;border-radius:6px;background:#333;flex:none;}
.bkb-toc-series-head b{font-size:15px;display:block;}
.bkb-toc-series-head small{font-size:11.5px;color:var(--bkb-fg2);display:block;line-height:1.6;}
.bkb-toc-eps{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:8px;}
.bkb-toc-ep{display:flex;gap:10px;align-items:center;padding:8px;border:1px solid var(--bkb-line);border-radius:12px;background:var(--bkb-panel2);cursor:pointer;color:var(--bkb-fg);text-decoration:none;appearance:none;text-align:left;}
.bkb-toc-ep.on{border-color:var(--bkb-accent);box-shadow:0 0 0 1px var(--bkb-accent) inset;}
.bkb-toc-ep img{width:44px;height:60px;object-fit:cover;border-radius:5px;background:#333;flex:none;}
.bkb-toc-ep .t{min-width:0;flex:1;}
.bkb-toc-ep .t b{display:block;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.bkb-toc-ep .t small{display:block;font-size:11px;color:var(--bkb-fg2);}
.bkb-badge{display:inline-block;font-size:10px;font-weight:800;border-radius:99px;padding:2px 8px;letter-spacing:.06em;}
.bkb-badge.free{background:#1e7d38;color:#fff;}
.bkb-badge.lock{background:rgba(255,255,255,.14);color:var(--bkb-fg);}
.bkb-badge.now{background:var(--bkb-accent);color:#fff;}
/* 販売導線パネル */
.bkb-cta-hero{text-align:center;padding:6px 0 10px;}
.bkb-cta-hero img{max-width:100%;max-height:160px;border-radius:12px;margin:0 auto 10px;display:block;}
.bkb-cta-hero h2{font-size:18px;margin:4px 0 6px;line-height:1.4;}
.bkb-cta-hero p{font-size:13px;line-height:1.9;color:var(--bkb-fg2);margin:0;}
/* v2.3：ボタンはサイトのスキンを継承（--bkb-btn／--bkb-btn-fg／--bkb-radius-btn は bookbottle.php がデザイン管理の値から出す） */
.bkb-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1.5px solid var(--bkb-btn);border-radius:var(--bkb-radius-btn);padding:13px 22px;font-size:14px;font-weight:800;line-height:1.2;background:var(--bkb-btn);color:var(--bkb-btn-fg);cursor:pointer;text-decoration:none;appearance:none;width:100%;box-sizing:border-box;font-family:var(--bkb-font-skin,inherit);letter-spacing:.02em;transition:filter .15s ease,transform .1s ease,background .15s ease;}
.bkb-btn:hover{filter:brightness(1.06);}
.bkb-btn.ghost{background:transparent;border:1.5px solid var(--bkb-btn);color:var(--bkb-fg);}
.bkb-btn.ghost:hover{background:color-mix(in srgb,var(--bkb-btn) 10%,transparent);filter:none;}
.bkb-btn.quiet{background:transparent;border-color:var(--bkb-line);color:var(--bkb-fg2);font-weight:700;}
.bkb-btn.small{padding:9px 14px;font-size:12.5px;width:auto;}
.bkb-btn:active{transform:scale(.98);}
.bkb-row{display:flex;gap:8px;margin:10px 0;}
.bkb-row .bkb-btn{flex:1;}
.bkb-plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px;}
.bkb-plan{border:1px solid var(--bkb-line);border-radius:14px;padding:14px;background:var(--bkb-panel2);display:flex;flex-direction:column;position:relative;}
.bkb-plan .rib{position:absolute;top:-9px;left:14px;font-size:10px;font-weight:800;border-radius:99px;padding:2px 10px;color:#fff;background:var(--bkb-accent);}
.bkb-plan h3{font-size:14px;margin:0 0 2px;}
.bkb-plan .pr{font-size:22px;font-weight:800;margin:2px 0 6px;}
.bkb-plan .pr small{font-size:11px;font-weight:400;color:var(--bkb-fg2);}
.bkb-plan p{font-size:12px;line-height:1.8;color:var(--bkb-fg2);margin:0 0 8px;}
.bkb-plan ul{margin:0 0 10px;padding:0;list-style:none;font-size:12px;line-height:1.8;}
.bkb-plan ul li{padding-left:1.2em;position:relative;}
.bkb-plan ul li:before{content:"✓";position:absolute;left:0;opacity:.7;}
.bkb-plan .go{margin-top:auto;}
.bkb-paypal{min-height:44px;margin:6px 0 0;}
.bkb-products{display:flex;gap:10px;overflow-x:auto;-webkit-overflow-scrolling:touch;padding:4px 0 8px;scrollbar-width:none;}
.bkb-products::-webkit-scrollbar{display:none;}
.bkb-prod{flex:none;width:140px;border:1px solid var(--bkb-line);border-radius:12px;background:var(--bkb-panel2);color:var(--bkb-fg);text-decoration:none;overflow:hidden;cursor:pointer;appearance:none;text-align:left;padding:0;}
.bkb-prod img{width:100%;aspect-ratio:1/1;object-fit:cover;display:block;background:#333;}
.bkb-prod b{display:block;font-size:12px;padding:8px 10px 2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.bkb-prod small{display:block;font-size:12px;padding:0 10px 10px;color:var(--bkb-accent);font-weight:800;}
.bkb-note{font-size:11px;color:var(--bkb-fg2);line-height:1.8;margin:8px 0 0;}
.bkb-donate{display:flex;gap:8px;flex-wrap:wrap;margin:6px 0;}
/* 汎用モーダル（既存ページ iframe） */
.bkb-modal{position:absolute;inset:0;z-index:50;display:flex;align-items:stretch;justify-content:center;background:rgba(0,0,0,.6);}
.bkb-modal[hidden]{display:none;}
.bkb-modal-in{width:100%;max-width:1100px;height:100%;background:#fff;display:flex;flex-direction:column;animation:bbup .25s cubic-bezier(.2,.8,.2,1);}
@media (min-width:900px){.bkb-modal{padding:16px;} .bkb-modal-in{border-radius:var(--bkb-radius);overflow:hidden;}}
.bkb-modal-head{display:flex;align-items:center;gap:4px;padding:6px 8px;padding-top:calc(6px + var(--bkb-safe-t));background:var(--bkb-panel);color:var(--bkb-fg);flex:none;}
.bkb-modal-head b{flex:1;min-width:0;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding:0 6px;}
.bkb-modal-body{flex:1;min-height:0;position:relative;background:#fff;}
.bkb-modal-body iframe{position:absolute;inset:0;width:100%;height:100%;border:0;background:#fff;}
/* トースト */
.bkb-toast{position:absolute;left:50%;bottom:calc(var(--bkb-bottom) + 16px + var(--bkb-safe-b));transform:translateX(-50%);background:rgba(20,20,24,.94);color:#fff;border:1px solid var(--bkb-line);border-radius:99px;padding:10px 18px;font-size:13px;z-index:60;white-space:nowrap;box-shadow:0 8px 24px rgba(0,0,0,.4);}
.bkb-toast[hidden]{display:none;}
/* 明るさ（暗幕） */
.bkb-shade{position:absolute;inset:0;background:#000;pointer-events:none;z-index:15;opacity:0;}
/* 検索行 */
.bkb-search{display:flex;gap:8px;margin:0 0 12px;}
.bkb-search input{flex:1;min-width:0;border:1px solid var(--bkb-line);background:var(--bkb-panel2);color:var(--bkb-fg);border-radius:12px;padding:11px 14px;font-size:14px;}
/* ═══════════ 埋め込みモード（?bbf=1：モーダル内の既存ページ） ═══════════ */
html.bkb-embed .gh,html.bkb-embed .gf,html.bkb-embed footer.gf,html.bkb-embed .side,html.bkb-embed .side-left,html.bkb-embed .side-right,
html.bkb-embed .ticker,html.bkb-embed .xf-hero-slot,html.bkb-embed #xmf-menu,html.bkb-embed .xf-topbar,html.bkb-embed .xf-gamebar,html.bkb-embed .xf-subbar,
html.bkb-embed .bkb-backpill,html.bkb-embed #mxm,html.bkb-embed .hb-menu,html.bkb-embed .hb-btn,html.bkb-embed .xf-intro,html.bkb-embed #xf-intro,
html.bkb-embed .dz-bg,html.bkb-embed #dz-bg,html.bkb-embed .bg-dream,html.bkb-embed [class*="hero-slot"]{display:none!important;}
html.bkb-embed .layout{display:block!important;grid-template-columns:1fr!important;}
html.bkb-embed .layout .main-col{width:100%!important;max-width:100%!important;margin:0!important;}
html.bkb-embed body{padding-top:0!important;}
/* ═══════════ 「本に戻る」ピル（モード ON で通常ページを直接開いたとき） ═══════════ */
.bkb-backpill{position:fixed;right:14px;bottom:calc(14px + env(safe-area-inset-bottom,0px));z-index:9999;display:inline-flex;align-items:center;gap:8px;background:#17171b;color:#fff;border:1px solid rgba(255,255,255,.14);border-radius:99px;padding:10px 16px 10px 12px;font-size:13px;font-weight:800;text-decoration:none;box-shadow:0 10px 28px rgba(0,0,0,.35);font-family:var(--bkb-font);}
.bkb-backpill:hover{background:#26262d;}
@media (prefers-reduced-motion:reduce){.bkb-sheet-in,.bkb-modal-in{animation:none;} .bkb-simple-track{transition:none;}}

/* 右綴じ：進むボタンを左側に置き、矢印の向きを読み方向に合わせる */
body.bkb-rtl .bkb-bottom{flex-direction:row-reverse;}
body.bkb-rtl .bkb-nav svg{transform:scaleX(-1);}
/* 音楽ボタン：OFF のとき斜線を重ねる */
.bkb-slash{position:absolute;left:9px;top:50%;width:22px;height:2px;background:currentColor;border-radius:2px;transform:rotate(-45deg);opacity:.85;pointer-events:none;}
.bkb-ib[aria-pressed="true"] .bkb-slash{display:none;}
/* 購入の流れ（ダウンロード販売） */
.bkb-flow{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:10px 0 6px;counter-reset:bkbf;}
.bkb-flow div{counter-increment:bkbf;position:relative;background:var(--bkb-panel2);border:1px solid var(--bkb-line);border-radius:12px;padding:28px 10px 12px;font-size:11.5px;line-height:1.6;text-align:center;}
.bkb-flow div:before{content:counter(bkbf);position:absolute;left:50%;top:8px;transform:translateX(-50%);width:18px;height:18px;border-radius:50%;background:var(--bkb-accent);color:#fff;font-size:11px;font-weight:800;line-height:18px;}
.bkb-urgency{display:inline-block;background:color-mix(in srgb,var(--bkb-accent) 16%,transparent);border:1px solid var(--bkb-accent);color:var(--bkb-accent);border-radius:99px;padding:5px 14px;font-size:11.5px;font-weight:800;margin:0 0 8px;}
.bkb-prod.bkb-hero{width:100%;display:flex;gap:12px;align-items:center;padding:10px;}
.bkb-prod.bkb-hero img{width:96px;aspect-ratio:3/4;border-radius:8px;flex:none;}
.bkb-prod.bkb-hero .tx{min-width:0;flex:1;padding:0;}
.bkb-prod.bkb-hero b{padding:0;white-space:normal;font-size:13.5px;}
.bkb-prod.bkb-hero small{padding:4px 0 0;font-size:15px;}
.bkb-owned{font-size:11.5px;color:#1e7d38;font-weight:800;}

/* ── ほかの部品を絶対に出さない（アプリ型ナビ等が万一注入された場合の保険） ── */
html.bkb-root .holy-appnav,html.bkb-root .holy-an-item,html.bkb-root #PING_CONTENT_PUSH_NOTIFICATION,
html.bkb-root .hb-menu,html.bkb-root .xf-topbar,html.bkb-root .xf-gamebar,html.bkb-root .xf-subbar,html.bkb-root .ticker{display:none!important;}
html.bkb-embed .holy-appnav{display:none!important;}
/* ── FlipBook を枠内に収める（PC で下が切れる不具合の修正） ── */
.bkb-book{contain:strict;}
/* FlipBook がコンテナに inline height を書き込んでも、表示領域からはみ出させない */
.bkb-book,.bkb-book>div,.bkb-book .flipbook-main-wrapper,.bkb-book .flipbook-wrapper{max-height:100%!important;max-width:100%!important;overflow:hidden!important;}
.bkb-book>div,.bkb-book .flipbook-main-wrapper,.bkb-book .flipbook-wrapper{width:100%!important;height:100%!important;}
.bkb-book canvas,.bkb-book img{max-height:100%!important;}
/* FlipBook 固有のページ一覧（サムネイル）・目次・検索・しおりの側パネルは使わない */
.bkb-book .flipbook-thumbHolder,.bkb-book .flipbook-thumbsWrapper,.bkb-book .flipbook-tocHolder,
.bkb-book .flipbook-searchHolder,.bkb-book .flipbook-bookmarkHolder,.bkb-book .flipbook-side-menu,
.bkb-book .flipbook-btnThumbs,.bkb-book .flipbook-btnToc,.bkb-book .flipbook-overlay-menu{display:none!important;}
/* ── ぼかしページ ── */
.bkb-simple-page.bkb-blur img{filter:blur(var(--bkb-blur,14px)) saturate(.75);transform:scale(1.03);}
.bkb-blurnote{position:absolute;left:50%;bottom:calc(var(--bkb-bottom) + 18px + var(--bkb-safe-b));transform:translateX(-50%);
  z-index:22;max-width:min(92vw,460px);background:var(--bkb-panel);color:var(--bkb-fg);border:1px solid var(--bkb-line);
  border-radius:14px;padding:14px 16px;box-shadow:0 12px 30px var(--bkb-shadow);text-align:center;}
.bkb-blurnote[hidden]{display:none;}
.bkb-blurnote b{display:block;font-size:11px;letter-spacing:.14em;color:var(--bkb-accent);margin:0 0 6px;}
.bkb-blurnote span{display:block;font-size:12.5px;line-height:1.8;color:var(--bkb-fg2);margin:0 0 10px;}
/* ── 会員について（2枚のカードで比較） ── */
.bkb-tiers2{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:8px 0 4px;}
@media (max-width:560px){.bkb-tiers2{grid-template-columns:1fr;}}
.bkb-tier2{border:1px solid var(--bkb-line);border-radius:14px;padding:14px;background:var(--bkb-panel2);position:relative;}
.bkb-tier2.on{border-color:var(--bkb-accent);box-shadow:0 0 0 1px var(--bkb-accent) inset;}
.bkb-tier2 h3{font-size:14px;margin:0 0 8px;display:flex;align-items:center;gap:8px;}
.bkb-tier2 ul{margin:0;padding:0;list-style:none;font-size:12.5px;line-height:1.9;}
.bkb-tier2 ul li{padding-left:1.3em;position:relative;}
.bkb-tier2 ul li:before{content:"✓";position:absolute;left:0;color:var(--bkb-accent);font-weight:800;}
.bkb-rulebox{border:1px dashed var(--bkb-line);border-radius:12px;padding:12px 14px;font-size:12.5px;line-height:1.9;margin:0 0 12px;}
.bkb-rulebox b{color:var(--bkb-accent);}
.bkb-eplist{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0 0;}
.bkb-eplist span{font-size:11px;border:1px solid var(--bkb-line);border-radius:99px;padding:3px 10px;color:var(--bkb-fg2);}

/* ── 最後のページの次の画面（行き止まりにしない）v2.3：組み直し ──
   ・縦に長いときは上が切れないよう margin:auto で中央寄せ（flex の align-items:center は上が切れる）
   ・要素の幅を揃える：主ボタン／副ボタンは全幅、メール欄は入力が伸びて登録ボタンは自然幅、共有は4等分
   ・最後に「さらに進むとホームへ」の矢印を置き、スクロール／スワイプ／ホイールでも進めるようにした（bookbottle.js） */
.bkb-outro{position:absolute;left:0;right:0;top:calc(var(--bkb-top) + var(--bkb-safe-t));bottom:calc(var(--bkb-bottom) + var(--bkb-safe-b));
  z-index:18;background:var(--bkb-bg);display:flex;flex-direction:column;padding:0;overflow-y:auto;-webkit-overflow-scrolling:touch;overscroll-behavior:contain;}
.bkb-outro[hidden]{display:none;}
.bkb-outro-in{margin:auto;width:100%;max-width:460px;padding:28px 20px 34px;box-sizing:border-box;text-align:center;animation:bkbup .35s ease;}
.bkb-outro-label{display:block;font-size:11px;letter-spacing:.2em;font-weight:800;color:var(--bkb-accent);margin:0 0 10px;text-transform:uppercase;min-height:1em;}
.bkb-outro h2{font-size:18px;line-height:1.55;margin:0 0 6px;font-family:var(--bkb-font-skin,inherit);color:var(--bkb-heading,var(--bkb-fg));}
.bkb-outro p{font-size:13px;line-height:1.9;color:var(--bkb-fg2);margin:0 0 4px;}
.bkb-outro p:empty{display:none;}
.bkb-outro-btns{display:flex;flex-direction:column;gap:10px;margin-top:18px;}
.bkb-outro-btns .bkb-btn{width:100%;}
.bkb-outro-btns .bkb-btn.bkb-big{padding:18px 20px;font-size:16px;}
.bkb-outro-btns .bkb-news{margin-top:6px;}
.bkb-outro-btns .bkb-news-row .bkb-btn{width:auto;flex:0 0 auto;height:46px;padding:0 18px;font-size:13px;}
.bkb-outro-btns .bkb-sec-title{margin:14px 0 2px;}
.bkb-outro-btns .bkb-link{appearance:none;background:none;border:0;color:var(--bkb-fg2);font-size:13px;font-weight:700;text-decoration:underline;text-underline-offset:3px;padding:6px 8px;cursor:pointer;width:auto;align-self:center;font-family:inherit;}
.bkb-outro-btns .bkb-link:hover{color:var(--bkb-fg);}
.bkb-outro-tail{margin:28px auto 0;display:flex;flex-direction:column;align-items:center;gap:6px;color:var(--bkb-fg2);font-size:12px;letter-spacing:.04em;cursor:pointer;}
.bkb-outro-tail[hidden]{display:none;}
.bkb-outro-tail.armed{color:var(--bkb-accent);font-weight:800;}

/* ── 指示7：常時見える細い進捗バー（残りが見えないと途中でやめる） ── */
.bkb-thin{position:absolute;left:0;right:0;bottom:0;height:3px;background:rgba(127,127,127,.28);z-index:24;pointer-events:none;}
.bkb-thin[hidden]{display:none;}
.bkb-thin i{display:block;height:100%;width:0;background:var(--bkb-accent);transition:width .25s ease;}
body.bkb-rtl .bkb-thin i{margin-left:auto;}
/* ── 指示5：再開の案内（2秒） ── */
.bkb-banner{position:absolute;left:50%;top:calc(var(--bkb-top) + var(--bkb-safe-t) + 10px);transform:translateX(-50%);
  z-index:23;display:flex;align-items:center;gap:12px;background:var(--bkb-panel);color:var(--bkb-fg);
  border:1px solid var(--bkb-line);border-radius:99px;padding:8px 16px;font-size:12.5px;box-shadow:0 8px 22px var(--bkb-shadow);
  max-width:92vw;white-space:nowrap;animation:bkbup .25s ease;}
.bkb-banner[hidden]{display:none;}
.bkb-banner a{color:var(--bkb-accent);font-weight:800;text-decoration:none;}
/* ── 指示4：初回だけ出す「♪ 音楽あり」 ── */
.bkb-musiclabel{position:absolute;right:12px;top:calc(var(--bkb-top) + var(--bkb-safe-t) + 4px);z-index:23;
  background:var(--bkb-panel);color:var(--bkb-fg);border:1px solid var(--bkb-line);border-radius:99px;
  padding:6px 13px;font-size:11.5px;font-weight:800;box-shadow:0 6px 18px var(--bkb-shadow);animation:bkbup .25s ease;}
.bkb-musiclabel[hidden]{display:none;}
/* ── 指示6：読み込み中に白を出さない（低解像度のぼかしを先に敷く） ── */
.bkb-simple-page{position:relative;}
.bkb-lqip{position:absolute;inset:6px;background-size:contain;background-position:center;background-repeat:no-repeat;
  filter:blur(12px);transform:scale(1.02);opacity:1;transition:opacity .25s ease;pointer-events:none;}
.bkb-lqip.done{opacity:0;}
.bkb-simple-page img{opacity:0;transition:opacity .25s ease;}
.bkb-simple-page img.ready{opacity:1;}

/* ═══════════ BookBottle 3D（第3のエンジン） ═══════════ */
.bkb-simple.bkb-3d{perspective:2200px;perspective-origin:50% 50%;touch-action:none;}  /* v2.3：Pointer Events で自前処理するため、ブラウザのパン／ズームに渡さない */
.bkb-simple.bkb-3d .bkb-simple-track{transition:none!important;}
.bkb-f3{position:absolute;inset:0;pointer-events:none;z-index:5;transform-style:preserve-3d;}
/* v2.3：めくれるページは JS が「実際に描画されている画像の矩形」に合わせて置く（白い余白ごと回らない）。
   filter:drop-shadow は 3D 変形とぶつかって画質が変わるため廃止し、面の box-shadow に置き換えた */
.bkb-f3-page{position:absolute;top:6px;bottom:6px;transform-style:preserve-3d;will-change:transform;}
.bkb-f3-page.full{left:6px;right:6px;}
.bkb-f3-page.half{width:calc(50% - 6px);}
.bkb-f3-page.half.right{right:6px;transform-origin:left center;}
.bkb-f3-page.half.left{left:6px;transform-origin:right center;}
.bkb-f3-page.full.right{transform-origin:left center;}
.bkb-f3-page.full.left{transform-origin:right center;}
.bkb-f3-face{position:absolute;inset:0;background:#fff center/100% 100% no-repeat;backface-visibility:hidden;-webkit-backface-visibility:hidden;border-radius:2px;box-shadow:0 8px 22px rgba(0,0,0,.28);image-rendering:auto;}
.bkb-f3-page.half .bkb-f3-face{background-size:100% 100%;}
.bkb-f3-page.half.right .front{background-position:left center;}
.bkb-f3-page.half.left .front{background-position:right center;}
.bkb-f3-page.half.right .back{background-position:right center;}
.bkb-f3-page.half.left .back{background-position:left center;}
.bkb-f3-face.back{transform:rotateY(180deg);}
.bkb-f3-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.35),rgba(0,0,0,0) 60%);opacity:0;pointer-events:none;}
.bkb-f3-page.left .bkb-f3-shade{background:linear-gradient(270deg,rgba(0,0,0,.35),rgba(0,0,0,0) 60%);}
/* 綴じ目（見開き時の中央の影） */
.bkb-simple.bkb-gutter .bkb-simple-page.bkb-spread:after{content:"";position:absolute;top:6px;bottom:6px;left:50%;width:44px;margin-left:-22px;
  background:linear-gradient(90deg,rgba(0,0,0,0) 0%,rgba(0,0,0,.18) 45%,rgba(0,0,0,.28) 50%,rgba(0,0,0,.18) 55%,rgba(0,0,0,0) 100%);pointer-events:none;z-index:2;}
/* 小口（本の厚みの見せかけ）v2.3：画面全体に縞を重ねる方式をやめ（漫画に縞のフィルターが乗って画質が変わって見えていた）、
   画像の矩形の下に「重なった紙」を2枚だけ置く。位置・大きさは JS が実画像に合わせる */
.bkb-simple-track{position:relative;z-index:1;}
.bkb-f3-edges{position:absolute;pointer-events:none;z-index:0;border-radius:2px;background:#fff;opacity:0;transition:opacity .2s;
  box-shadow:2px 2px 0 0 #ececec,4px 4px 0 0 #dcdcdc,5px 5px 0 0 rgba(0,0,0,.06),0 12px 26px var(--bkb-shadow);}
.bkb-f3-edges.on{opacity:1;}
body.bkb-rtl .bkb-f3-edges{box-shadow:-2px 2px 0 0 #ececec,-4px 4px 0 0 #dcdcdc,-5px 5px 0 0 rgba(0,0,0,.06),0 12px 26px var(--bkb-shadow);}
.bkb-simple.bkb-3d .bkb-simple-page img{box-shadow:0 4px 14px var(--bkb-shadow);}

/* ═══════════ 読ませる流れ ═══════════ */
/* v2.5：1ページ目の概要画面。ガラス板・細い罫線・順に現れる文字・円環の残り時間。色はスキンのアクセントを使う */
.bkb-intro{position:absolute;inset:0;z-index:26;display:flex;align-items:flex-end;justify-content:center;cursor:pointer;overflow:hidden;
  background:transparent;}   /* v3.0：作品の絵を隠さない。ぼかし・暗幕なし */
.bkb-intro[hidden]{display:none;}
.bkb-intro-glow{display:none;position:absolute;left:50%;bottom:-140px;width:520px;height:520px;margin-left:-260px;border-radius:50%;pointer-events:none;
  background:radial-gradient(closest-side,color-mix(in srgb,var(--bkb-accent) 45%,transparent),transparent 70%);filter:blur(30px);opacity:.75;animation:bkbglow 6s ease-in-out infinite alternate;}
@keyframes bkbglow{from{transform:translateX(-40px) scale(.95);opacity:.55}to{transform:translateX(40px) scale(1.05);opacity:.85}}
/* v3.0：板もぼかしも無し。白い文字に影だけ付けて、絵の上に浮かせる */
.bkb-intro-in{position:relative;width:100%;max-width:560px;margin:0 14px calc(var(--bkb-bottom) + 18px + var(--bkb-safe-b));padding:22px 24px 20px;color:#fff;text-align:left;cursor:default;box-sizing:border-box;
  background:transparent;border:0;border-radius:0;text-shadow:0 1px 2px rgba(0,0,0,.9),0 4px 18px rgba(0,0,0,.8),0 0 40px rgba(0,0,0,.6);
  animation:bkbintroin .7s cubic-bezier(.2,.8,.2,1) both;}
.bkb-intro-in:before{content:"";display:none;position:absolute;inset:0;border-radius:22px;padding:1px;pointer-events:none;
  background:linear-gradient(120deg,transparent 20%,color-mix(in srgb,var(--bkb-accent) 80%,#fff) 50%,transparent 80%);background-size:300% 100%;
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:.7;animation:bkbsweep 4s linear infinite;}
@keyframes bkbsweep{from{background-position:200% 0}to{background-position:-100% 0}}
@keyframes bkbintroin{from{opacity:0;transform:translateY(28px) scale(.98)}to{opacity:1;transform:none}}
.bkb-intro.out{pointer-events:none;} .bkb-intro.out .bkb-intro-in{animation:bkbintroout .4s ease both;} .bkb-intro.out{animation:bkbfadeout .4s ease both;}
@keyframes bkbintroout{to{opacity:0;transform:translateY(16px) scale(.98)}} @keyframes bkbfadeout{to{opacity:0}}
.bkb-intro-head{display:flex;align-items:center;justify-content:space-between;margin:0 0 14px;animation:bkbrise .6s .1s both;}
.bkb-intro-ep{display:inline-flex;align-items:baseline;gap:8px;font-family:var(--bkb-font-skin,inherit);}
.bkb-intro-ep i{font-style:normal;font-size:10px;letter-spacing:.34em;opacity:.7;font-weight:800;}
.bkb-intro-ep b{font-size:30px;line-height:1;font-weight:900;letter-spacing:-.02em;background:linear-gradient(180deg,#fff,color-mix(in srgb,var(--bkb-accent) 55%,#fff));-webkit-background-clip:text;background-clip:text;color:transparent;}
.bkb-intro-ring{width:34px;height:34px;transform:rotate(-90deg);}
.bkb-intro-ring circle{fill:none;stroke-width:2;} .bkb-intro-ring .bg{stroke:rgba(255,255,255,.18);}
.bkb-intro-ring .fg{stroke:var(--bkb-accent);stroke-linecap:round;stroke-dasharray:119.4;stroke-dashoffset:0;transition:stroke-dashoffset .12s linear;filter:drop-shadow(0 0 4px var(--bkb-accent));}
.bkb-intro-in small{display:block;font-size:11px;letter-spacing:.26em;opacity:.75;margin:0 0 6px;text-transform:uppercase;animation:bkbrise .6s .2s both;}
.bkb-intro-in h2{font-size:24px;line-height:1.35;margin:0 0 12px;font-family:var(--bkb-font-skin,inherit);letter-spacing:.01em;text-shadow:0 2px 14px rgba(0,0,0,.4);animation:bkbrise .7s .3s both;}
.bkb-intro-line{display:block;height:1px;width:0;background:linear-gradient(90deg,var(--bkb-accent),transparent);margin:0 0 12px;animation:bkbline .9s .45s cubic-bezier(.2,.8,.2,1) both;}
@keyframes bkbline{to{width:100%}}
.bkb-intro-in p{font-size:13.5px;line-height:1.95;opacity:.9;margin:0 0 16px;animation:bkbrise .7s .55s both;} .bkb-intro-in p:empty{display:none;}
.bkb-intro-foot{display:flex;align-items:center;gap:14px;animation:bkbrise .7s .7s both;}
.bkb-intro-foot .bkb-btn{width:auto;padding:12px 24px;gap:10px;text-shadow:none;box-shadow:0 10px 26px rgba(0,0,0,.45);}
.bkb-intro-bar{background:rgba(255,255,255,.28);}
.bkb-intro-arrow{display:inline-block;transition:transform .2s;} .bkb-intro-foot .bkb-btn:hover .bkb-intro-arrow{transform:translateX(4px);}
.bkb-intro-hint{font-size:11.5px;letter-spacing:.08em;opacity:.65;}
@keyframes bkbrise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.bkb-intro-bar{display:block;height:2px;background:rgba(255,255,255,.14);margin:16px 0 0;border-radius:2px;overflow:hidden;}
.bkb-intro-bar b{display:block;height:100%;width:100%;background:linear-gradient(90deg,var(--bkb-accent),#fff);transition:width .1s linear;box-shadow:0 0 8px var(--bkb-accent);}
@media (max-width:420px){.bkb-intro-in{padding:18px 18px 16px;margin-left:10px;margin-right:10px;} .bkb-intro-in h2{font-size:20px;} .bkb-intro-ep b{font-size:26px;}}
.bkb-btn.bkb-big{padding:18px 20px;font-size:16px;}
.bkb-outro-btns .bkb-news{margin-top:6px;}
.bkb-outro-btns .bkb-news-row .bkb-btn{width:auto;flex:0 0 auto;height:46px;padding:0 18px;font-size:13px;}
.bkb-outro-btns .bkb-sec-title{margin:14px 0 2px;}
.bkb-outro-btns .bkb-link{appearance:none;background:none;border:0;color:var(--bkb-fg2);font-size:13px;font-weight:700;text-decoration:underline;text-underline-offset:3px;padding:6px 8px;cursor:pointer;width:auto;align-self:center;font-family:inherit;}
.bkb-outro-btns .bkb-link:hover{color:var(--bkb-fg);}
.bkb-outro-tail{margin:28px auto 0;display:flex;flex-direction:column;align-items:center;gap:6px;color:var(--bkb-fg2);font-size:12px;letter-spacing:.04em;cursor:pointer;}
.bkb-outro-tail[hidden]{display:none;}
.bkb-outro-tail.armed{color:var(--bkb-accent);font-weight:800;}

/* ── 指示7：常時見える細い進捗バー（残りが見えないと途中でやめる） ── */
.bkb-thin{position:absolute;left:0;right:0;bottom:0;height:3px;background:rgba(127,127,127,.28);z-index:24;pointer-events:none;}
.bkb-thin[hidden]{display:none;}
.bkb-thin i{display:block;height:100%;width:0;background:var(--bkb-accent);transition:width .25s ease;}
body.bkb-rtl .bkb-thin i{margin-left:auto;}
/* ── 指示5：再開の案内（2秒） ── */
.bkb-banner{position:absolute;left:50%;top:calc(var(--bkb-top) + var(--bkb-safe-t) + 10px);transform:translateX(-50%);
  z-index:23;display:flex;align-items:center;gap:12px;background:var(--bkb-panel);color:var(--bkb-fg);
  border:1px solid var(--bkb-line);border-radius:99px;padding:8px 16px;font-size:12.5px;box-shadow:0 8px 22px var(--bkb-shadow);
  max-width:92vw;white-space:nowrap;animation:bkbup .25s ease;}
.bkb-banner[hidden]{display:none;}
.bkb-banner a{color:var(--bkb-accent);font-weight:800;text-decoration:none;}
/* ── 指示4：初回だけ出す「♪ 音楽あり」 ── */
.bkb-musiclabel{position:absolute;right:12px;top:calc(var(--bkb-top) + var(--bkb-safe-t) + 4px);z-index:23;
  background:var(--bkb-panel);color:var(--bkb-fg);border:1px solid var(--bkb-line);border-radius:99px;
  padding:6px 13px;font-size:11.5px;font-weight:800;box-shadow:0 6px 18px var(--bkb-shadow);animation:bkbup .25s ease;}
.bkb-musiclabel[hidden]{display:none;}
/* ── 指示6：読み込み中に白を出さない（低解像度のぼかしを先に敷く） ── */
.bkb-simple-page{position:relative;}
.bkb-lqip{position:absolute;inset:6px;background-size:contain;background-position:center;background-repeat:no-repeat;
  filter:blur(12px);transform:scale(1.02);opacity:1;transition:opacity .25s ease;pointer-events:none;}
.bkb-lqip.done{opacity:0;}
.bkb-simple-page img{opacity:0;transition:opacity .25s ease;}
.bkb-simple-page img.ready{opacity:1;}

/* ═══════════ BookBottle 3D（第3のエンジン） ═══════════ */
.bkb-simple.bkb-3d{perspective:2200px;perspective-origin:50% 50%;touch-action:none;}  /* v2.3：Pointer Events で自前処理するため、ブラウザのパン／ズームに渡さない */
.bkb-simple.bkb-3d .bkb-simple-track{transition:none!important;}
.bkb-f3{position:absolute;inset:0;pointer-events:none;z-index:5;transform-style:preserve-3d;}
/* v2.3：めくれるページは JS が「実際に描画されている画像の矩形」に合わせて置く（白い余白ごと回らない）。
   filter:drop-shadow は 3D 変形とぶつかって画質が変わるため廃止し、面の box-shadow に置き換えた */
.bkb-f3-page{position:absolute;top:6px;bottom:6px;transform-style:preserve-3d;will-change:transform;}
.bkb-f3-page.full{left:6px;right:6px;}
.bkb-f3-page.half{width:calc(50% - 6px);}
.bkb-f3-page.half.right{right:6px;transform-origin:left center;}
.bkb-f3-page.half.left{left:6px;transform-origin:right center;}
.bkb-f3-page.full.right{transform-origin:left center;}
.bkb-f3-page.full.left{transform-origin:right center;}
.bkb-f3-face{position:absolute;inset:0;background:#fff center/100% 100% no-repeat;backface-visibility:hidden;-webkit-backface-visibility:hidden;border-radius:2px;box-shadow:0 8px 22px rgba(0,0,0,.28);image-rendering:auto;}
.bkb-f3-page.half .bkb-f3-face{background-size:100% 100%;}
.bkb-f3-page.half.right .front{background-position:left center;}
.bkb-f3-page.half.left .front{background-position:right center;}
.bkb-f3-page.half.right .back{background-position:right center;}
.bkb-f3-page.half.left .back{background-position:left center;}
.bkb-f3-face.back{transform:rotateY(180deg);}
.bkb-f3-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.35),rgba(0,0,0,0) 60%);opacity:0;pointer-events:none;}
.bkb-f3-page.left .bkb-f3-shade{background:linear-gradient(270deg,rgba(0,0,0,.35),rgba(0,0,0,0) 60%);}
/* 綴じ目（見開き時の中央の影） */
.bkb-simple.bkb-gutter .bkb-simple-page.bkb-spread:after{content:"";position:absolute;top:6px;bottom:6px;left:50%;width:44px;margin-left:-22px;
  background:linear-gradient(90deg,rgba(0,0,0,0) 0%,rgba(0,0,0,.18) 45%,rgba(0,0,0,.28) 50%,rgba(0,0,0,.18) 55%,rgba(0,0,0,0) 100%);pointer-events:none;z-index:2;}
/* 小口（本の厚みの見せかけ）v2.3：画面全体に縞を重ねる方式をやめ（漫画に縞のフィルターが乗って画質が変わって見えていた）、
   画像の矩形の下に「重なった紙」を2枚だけ置く。位置・大きさは JS が実画像に合わせる */
.bkb-simple-track{position:relative;z-index:1;}
.bkb-f3-edges{position:absolute;pointer-events:none;z-index:0;border-radius:2px;background:#fff;opacity:0;transition:opacity .2s;
  box-shadow:2px 2px 0 0 #ececec,4px 4px 0 0 #dcdcdc,5px 5px 0 0 rgba(0,0,0,.06),0 12px 26px var(--bkb-shadow);}
.bkb-f3-edges.on{opacity:1;}
body.bkb-rtl .bkb-f3-edges{box-shadow:-2px 2px 0 0 #ececec,-4px 4px 0 0 #dcdcdc,-5px 5px 0 0 rgba(0,0,0,.06),0 12px 26px var(--bkb-shadow);}
.bkb-simple.bkb-3d .bkb-simple-page img{box-shadow:0 4px 14px var(--bkb-shadow);}

/* ═══════════ 読ませる流れ ═══════════ */
.bkb-intro{position:absolute;inset:0;z-index:26;display:flex;align-items:flex-end;justify-content:center;background:linear-gradient(transparent 30%,rgba(0,0,0,.72));cursor:pointer;}
.bkb-intro[hidden]{display:none;}
.bkb-intro-in{width:100%;max-width:560px;padding:0 22px calc(var(--bkb-bottom) + 30px + var(--bkb-safe-b));color:#fff;text-align:left;animation:bkbup .35s ease;cursor:default;}
.bkb-intro-in small{display:block;font-size:12px;letter-spacing:.12em;opacity:.8;margin:0 0 4px;}
.bkb-intro-in h2{font-size:22px;line-height:1.4;margin:0 0 8px;text-shadow:0 2px 10px rgba(0,0,0,.5);}
.bkb-intro-in p{font-size:13.5px;line-height:1.9;opacity:.92;margin:0 0 14px;text-shadow:0 1px 6px rgba(0,0,0,.5);}
.bkb-intro-in .bkb-btn{width:auto;padding:12px 26px;}
.bkb-intro-bar{display:block;height:2px;background:rgba(255,255,255,.25);margin:14px 0 0;border-radius:2px;overflow:hidden;}
.bkb-intro-bar b{display:block;height:100%;width:100%;background:#fff;transition:width .1s linear;}
.bkb-btn.bkb-big{padding:18px 24px;font-size:16px;box-shadow:0 10px 26px color-mix(in srgb,var(--bkb-btn) 40%,transparent);}
.bkb-news{border:1px solid var(--bkb-line);border-radius:14px;padding:14px 14px 12px;background:var(--bkb-panel2);text-align:left;}
.bkb-news b{display:block;font-size:13px;margin:0 0 10px;}
.bkb-news-row{display:flex;gap:8px;align-items:stretch;}
.bkb-news-row input{flex:1 1 auto;min-width:0;width:100%;height:46px;box-sizing:border-box;border:1px solid var(--bkb-line);background:var(--bkb-panel);color:var(--bkb-fg);border-radius:var(--bkb-radius-btn);padding:0 14px;font-size:15px;font-family:inherit;}
.bkb-news-row input:focus{outline:2px solid var(--bkb-accent);outline-offset:0;border-color:transparent;}
.bkb-news small{display:block;font-size:11.5px;color:var(--bkb-fg2);margin:6px 0 0;min-height:1em;}
.bkb-share{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;}
.bkb-share .bkb-chip{justify-content:center;padding:12px 4px;font-size:12px;border-radius:var(--bkb-radius-btn);gap:6px;}
.bkb-share .bkb-chip svg{width:16px;height:16px;flex:none;}
@media (max-width:380px){.bkb-share{grid-template-columns:repeat(2,1fr);}}
.bkb-exit{position:absolute;inset:0;z-index:70;background:var(--bkb-bg);display:flex;align-items:center;justify-content:center;text-align:center;padding:24px;animation:bkbup .3s ease;}
.bkb-exit[hidden]{display:none;}
.bkb-exit h2{font-size:16px;color:var(--bkb-fg2);margin:0 0 16px;font-weight:600;}
.bkb-exit .bkb-btn{width:auto;padding:14px 30px;}

/* ═══════════ v2.3：読み方向の矢印（「めくって読む」） ═══════════
   進む側の端（右綴じ＝左端／左綴じ＝右端）に置き、矢印が読み方向へ流れる。数秒で消える／めくったら消える／1セッション1回 */
.bkb-hint{position:absolute;inset:0;z-index:21;pointer-events:none;display:flex;align-items:center;}
.bkb-hint[hidden]{display:none;}
body.bkb-rtl .bkb-hint{justify-content:flex-start;padding-left:14px;}
body.bkb-ltr .bkb-hint{justify-content:flex-end;padding-right:14px;}
.bkb-hint-in{display:flex;flex-direction:column;align-items:center;gap:8px;background:rgba(20,20,24,.74);color:#fff;padding:14px 12px 12px;border-radius:14px;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);box-shadow:0 10px 30px rgba(0,0,0,.35);animation:bkbup .3s ease;}
.bkb-hint.out .bkb-hint-in{animation:bkbhintout .3s ease forwards;}
@keyframes bkbhintout{to{opacity:0;transform:translateY(8px)}}
.bkb-hint-text{font-size:12px;font-weight:800;letter-spacing:.06em;white-space:nowrap;}
.bkb-hint-arrows{display:flex;gap:1px;}
.bkb-hint-arrows i{display:block;width:11px;height:11px;border:0 solid currentColor;opacity:.25;}
/* 右綴じ：左向きの山形（左と下の辺）。読み方向（左）へ流れる */
body.bkb-rtl .bkb-hint-arrows i{border-left-width:3px;border-bottom-width:3px;transform:rotate(45deg);animation:bkbchevL 1.5s ease-in-out infinite;}
body.bkb-rtl .bkb-hint-arrows i:nth-child(2){animation-delay:.16s;} body.bkb-rtl .bkb-hint-arrows i:nth-child(3){animation-delay:.32s;}
/* 左綴じ：右向き（右と上の辺）。読み方向（右）へ流れる */
body.bkb-ltr .bkb-hint-arrows i{border-right-width:3px;border-top-width:3px;transform:rotate(45deg);animation:bkbchevR 1.5s ease-in-out infinite;}
body.bkb-ltr .bkb-hint-arrows i:nth-child(2){animation-delay:.16s;} body.bkb-ltr .bkb-hint-arrows i:nth-child(3){animation-delay:.32s;}
@keyframes bkbchevL{0%{opacity:.15;transform:translateX(6px) rotate(45deg)}40%{opacity:1}100%{opacity:.15;transform:translateX(-8px) rotate(45deg)}}
@keyframes bkbchevR{0%{opacity:.15;transform:translateX(-6px) rotate(45deg)}40%{opacity:1}100%{opacity:.15;transform:translateX(8px) rotate(45deg)}}
/* 読み終わり画面の末尾：下向き（右と下の辺）。下へ流れる */
.bkb-hint-arrows.down{flex-direction:column;gap:0;}
body.bkb-rtl .bkb-hint-arrows.down i,body.bkb-ltr .bkb-hint-arrows.down i{border:0 solid currentColor;border-right-width:3px;border-bottom-width:3px;transform:rotate(45deg);animation:bkbchevD 1.5s ease-in-out infinite;margin:-4px 0;}
.bkb-hint-arrows.down i:nth-child(2){animation-delay:.18s;}
@keyframes bkbchevD{0%{opacity:.15;transform:translateY(-4px) rotate(45deg)}40%{opacity:1}100%{opacity:.15;transform:translateY(6px) rotate(45deg)}}
/* 見出しの色（スキン継承・skin テーマのときのみ変数が入る） */
.bkb-intro-in h2{font-family:var(--bkb-font-skin,inherit);}
@media (prefers-reduced-motion:reduce){.bkb-hint-arrows i{animation:none!important;opacity:.9!important;}}

/* ═══════════ v2.4/2.5：インフィニティスクロール ─ 話と話の間の「読み込み中」フレーム（未来的：円環・薄い格子・光る番号） ═══════════ */
.bkb-inf{position:absolute;left:0;right:0;top:calc(var(--bkb-top) + var(--bkb-safe-t));bottom:calc(var(--bkb-bottom) + var(--bkb-safe-b));z-index:19;background:var(--bkb-bg);display:flex;align-items:center;justify-content:center;padding:24px;overflow:hidden;animation:bkbfade .22s ease;}
.bkb-inf[hidden]{display:none;}
@keyframes bkbfade{from{opacity:0}to{opacity:1}}
.bkb-inf-grid{position:absolute;inset:-20%;pointer-events:none;opacity:.35;
  background-image:linear-gradient(rgba(127,127,127,.18) 1px,transparent 1px),linear-gradient(90deg,rgba(127,127,127,.18) 1px,transparent 1px);background-size:36px 36px;
  -webkit-mask:radial-gradient(circle at 50% 50%,#000 0,transparent 62%);mask:radial-gradient(circle at 50% 50%,#000 0,transparent 62%);animation:bkbgrid 12s linear infinite;}
@keyframes bkbgrid{from{transform:translateY(0)}to{transform:translateY(36px)}}
.bkb-inf-in{position:relative;display:flex;flex-direction:column;align-items:center;gap:8px;text-align:center;max-width:320px;width:100%;}
.bkb-inf-orb{position:relative;width:150px;height:150px;display:flex;align-items:center;justify-content:center;margin:0 0 6px;}
.bkb-inf-orb svg{position:absolute;inset:0;width:100%;height:100%;}
.bkb-inf-orb circle{fill:none;stroke-linecap:round;transform-origin:50% 50%;}
.bkb-inf-orb .r1{stroke:color-mix(in srgb,var(--bkb-accent) 70%,transparent);stroke-width:1.5;stroke-dasharray:60 280;animation:bkbspin1 2.6s linear infinite;filter:drop-shadow(0 0 6px var(--bkb-accent));}
.bkb-inf-orb .r2{stroke:rgba(127,127,127,.35);stroke-width:1;stroke-dasharray:4 8;animation:bkbspin2 9s linear infinite;}
.bkb-inf-orb .r3{stroke:color-mix(in srgb,var(--bkb-accent) 45%,transparent);stroke-width:2;stroke-dasharray:30 210;animation:bkbspin1 1.8s linear infinite reverse;}
@keyframes bkbspin1{to{transform:rotate(360deg)}} @keyframes bkbspin2{to{transform:rotate(-360deg)}}
.bkb-inf-orb img{width:58px;height:78px;object-fit:cover;border-radius:5px;background:#fff;box-shadow:0 10px 26px var(--bkb-shadow),0 0 0 1px rgba(255,255,255,.35);animation:bkbfloat 3s ease-in-out infinite;}
.bkb-inf-orb img[hidden]{display:none;}
@keyframes bkbfloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}
.bkb-inf-num{display:inline-flex;align-items:baseline;gap:8px;font-family:var(--bkb-font-skin,inherit);}
.bkb-inf-num i{font-style:normal;font-size:10px;letter-spacing:.34em;color:var(--bkb-fg2);font-weight:800;}
.bkb-inf-num b{font-size:34px;line-height:1;font-weight:900;letter-spacing:-.02em;background:linear-gradient(180deg,var(--bkb-fg),color-mix(in srgb,var(--bkb-accent) 70%,var(--bkb-fg)));-webkit-background-clip:text;background-clip:text;color:transparent;}
.bkb-inf-in small{font-size:11px;letter-spacing:.18em;color:var(--bkb-fg2);font-weight:800;}
.bkb-inf-in>b{font-size:15px;line-height:1.5;font-family:var(--bkb-font-skin,inherit);color:var(--bkb-heading,var(--bkb-fg));}
.bkb-inf-bar{display:block;width:100%;height:2px;border-radius:2px;background:rgba(127,127,127,.28);overflow:hidden;margin:8px 0 0;}
.bkb-inf-bar b{display:block;height:100%;width:8%;background:linear-gradient(90deg,var(--bkb-accent),#fff);box-shadow:0 0 8px var(--bkb-accent);transition:width 1.2s ease;border-radius:2px;}
.bkb-inf-in span{font-size:12px;color:var(--bkb-fg2);min-height:1em;}
/* v2.5：読み終わり画面のリアクションUI（react_lib.php があるとき） */
.bkb-outro-rx{margin:14px 0 4px;} .bkb-outro-rx[hidden]{display:none;}
.bkb-outro-rx .bkb-sec-title{margin:0 0 8px;}
.bkb-outro-rx>*:not(.bkb-sec-title):not(script):not(style){display:flex;justify-content:center;flex-wrap:wrap;gap:8px;}
.bkb-outro-rx script,.bkb-outro-rx style{display:none;}
@media (prefers-reduced-motion:reduce){.bkb-intro-glow,.bkb-intro-in:before,.bkb-inf-grid,.bkb-inf-orb circle,.bkb-inf-orb img{animation:none!important;}}

/* ═══════════ v2.6：話が切り替わった直後の演出（タイトルだけ・太く大きく・未来的） ═══════════
   ページの上に重ねるだけ。操作は止めない（触れば即消える）。長さは --sp-ms、種類は .bkb-sp-* */
.bkb-splash{position:absolute;inset:0;z-index:27;pointer-events:none;display:flex;align-items:center;justify-content:center;overflow:hidden;opacity:0;}
.bkb-splash[hidden]{display:none;}
.bkb-splash.on{opacity:1;animation:bkbspFade var(--sp-ms,1100ms) ease forwards;}
@keyframes bkbspFade{0%{opacity:1}72%{opacity:1}100%{opacity:0}}
.bkb-splash:before{content:"";position:absolute;inset:0;background:radial-gradient(120% 70% at 50% 50%,rgba(6,8,14,.86) 0%,rgba(6,8,14,.6) 45%,transparent 78%);}
.bkb-splash-in{position:relative;text-align:center;color:#fff;padding:0 22px;max-width:640px;display:flex;flex-direction:column;align-items:center;}
.bkb-splash-ep{display:flex;align-items:baseline;justify-content:center;gap:10px;margin:0 0 16px;font-family:var(--bkb-font-skin,inherit);}
.bkb-splash-ep i{font-style:normal;font-size:10px;letter-spacing:.4em;opacity:.7;font-weight:800;}
.bkb-splash-ep b{font-size:26px;font-weight:900;line-height:1;letter-spacing:-.02em;color:var(--bkb-accent);text-shadow:0 0 18px color-mix(in srgb,var(--bkb-accent) 70%,transparent);}
.bkb-splash h2{margin:0;font-size:clamp(26px,8vw,46px);line-height:1.2;font-weight:900;letter-spacing:.01em;font-family:var(--bkb-font-skin,inherit);
  text-shadow:0 4px 30px rgba(0,0,0,.6);}
.bkb-splash-line{display:block;height:2px;width:0;margin:14px auto 0;background:linear-gradient(90deg,transparent,var(--bkb-accent),transparent);box-shadow:0 0 12px var(--bkb-accent);}
.bkb-splash-scan{position:absolute;left:0;right:0;height:36%;top:-40%;pointer-events:none;
  background:linear-gradient(180deg,transparent,color-mix(in srgb,var(--bkb-accent) 30%,transparent),transparent);opacity:0;}
/* splash：番号→タイトルが一気に立ち上がる（既定） */
.bkb-sp-splash.on .bkb-splash-ep{animation:bkbspUp calc(var(--sp-ms,1100ms) * .3) cubic-bezier(.2,.9,.2,1) both;}
.bkb-sp-splash.on h2{animation:bkbspPop calc(var(--sp-ms,1100ms) * .5) cubic-bezier(.16,1,.3,1) both;animation-delay:calc(var(--sp-ms,1100ms) * .08);}
.bkb-sp-splash.on .bkb-splash-line{animation:bkbspLine calc(var(--sp-ms,1100ms) * .55) cubic-bezier(.2,.8,.2,1) both;animation-delay:calc(var(--sp-ms,1100ms) * .2);}
@keyframes bkbspUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes bkbspPop{from{opacity:0;transform:translateY(26px) scale(.94);letter-spacing:.22em;filter:blur(8px)}to{opacity:1;transform:none;letter-spacing:.01em;filter:none}}
@keyframes bkbspLine{from{width:0}to{width:78%}}
/* slide：横から流れ込む（読み方向に合わせる） */
.bkb-sp-slide.on .bkb-splash-in{animation:bkbspSlide calc(var(--sp-ms,1100ms) * .55) cubic-bezier(.16,1,.3,1) both;}
body.bkb-rtl .bkb-sp-slide.on .bkb-splash-in{--sp-from:14vw;} body.bkb-ltr .bkb-sp-slide.on .bkb-splash-in{--sp-from:-14vw;}
@keyframes bkbspSlide{from{opacity:0;transform:translateX(var(--sp-from,-14vw)) skewX(-6deg)}to{opacity:1;transform:none}}
.bkb-sp-slide.on .bkb-splash-line{animation:bkbspLine calc(var(--sp-ms,1100ms) * .5) ease both;}
/* glitch：走査線が走る */
.bkb-sp-glitch.on .bkb-splash-scan{animation:bkbspScan calc(var(--sp-ms,1100ms) * .7) linear both;}
@keyframes bkbspScan{from{top:-40%;opacity:.9}to{top:110%;opacity:0}}
.bkb-sp-glitch.on h2{animation:bkbspGlitch calc(var(--sp-ms,1100ms) * .5) steps(2,end) both;}
@keyframes bkbspGlitch{0%{opacity:0;transform:translateX(-6px);text-shadow:3px 0 var(--bkb-accent),-3px 0 rgba(255,80,120,.9)}
  30%{opacity:1;transform:translateX(4px);text-shadow:-3px 0 var(--bkb-accent),3px 0 rgba(255,80,120,.9)}
  60%{transform:translateX(-2px);text-shadow:2px 0 var(--bkb-accent)}100%{opacity:1;transform:none;text-shadow:0 4px 30px rgba(0,0,0,.6)}}
.bkb-sp-glitch.on .bkb-splash-line{animation:bkbspLine calc(var(--sp-ms,1100ms) * .5) ease both;}
/* fade：淡く */
.bkb-sp-fade:before{background:rgba(6,8,14,.6);}
.bkb-sp-fade.on .bkb-splash-in{animation:bkbspUp calc(var(--sp-ms,1100ms) * .5) ease both;}
.bkb-sp-fade.on .bkb-splash-line{display:none;}
@media (prefers-reduced-motion:reduce){.bkb-splash.on,.bkb-splash.on *{animation-duration:.01ms!important;animation-iteration-count:1!important;}}

/* ═══════════ v3.0：音楽ボタンを大きく／再生中の曲名 ═══════════ */
.bkb-actions .bkb-music-btn{width:44px;height:44px;border-radius:999px;background:var(--bkb-btn);color:var(--bkb-btn-fg);margin-left:4px;box-shadow:0 6px 18px color-mix(in srgb,var(--bkb-btn) 45%,transparent);}
.bkb-actions .bkb-music-btn svg{width:24px;height:24px;}
.bkb-actions .bkb-music-btn[aria-pressed="true"]{background:var(--bkb-accent);color:#fff;animation:bkbpulse 2s ease-in-out infinite;}
@keyframes bkbpulse{0%,100%{box-shadow:0 0 0 0 color-mix(in srgb,var(--bkb-accent) 55%,transparent)}50%{box-shadow:0 0 0 10px transparent}}
.bkb-actions .bkb-music-btn[hidden]{display:none;}
/* v3.2：再生中の曲名。曲が変わると「タイトル」のように大きく出て、設定の時間で小さな帯に落ち着く */
.bkb-now{position:absolute;left:50%;top:calc(var(--bkb-top) + var(--bkb-safe-t) + 10px);transform:translateX(-50%);z-index:22;pointer-events:none;
  display:flex;flex-direction:column;align-items:center;gap:6px;max-width:min(86vw,560px);color:#fff;text-align:center;}
.bkb-now[hidden]{display:none;}
.bkb-now-in{display:flex;align-items:center;gap:14px;padding:14px 26px;border-radius:16px;
  background:linear-gradient(180deg,rgba(12,14,20,.82),rgba(12,14,20,.62));backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  box-shadow:0 14px 34px rgba(0,0,0,.42),inset 0 1px 0 rgba(255,255,255,.14);transition:padding .45s cubic-bezier(.2,.8,.2,1),border-radius .45s,background .45s;}
.bkb-now-txt{display:flex;flex-direction:column;align-items:flex-start;gap:2px;min-width:0;}
.bkb-now-txt small{font-size:9px;letter-spacing:.34em;opacity:.6;font-weight:800;text-transform:uppercase;transition:font-size .4s,opacity .4s;}
.bkb-now-txt span{font-size:20px;font-weight:800;line-height:1.3;letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:min(70vw,460px);
  font-family:var(--bkb-font-skin,inherit);text-shadow:0 2px 12px rgba(0,0,0,.5);transition:font-size .45s cubic-bezier(.2,.8,.2,1);}
.bkb-now-line{display:block;height:2px;width:0;background:linear-gradient(90deg,transparent,var(--bkb-accent),transparent);box-shadow:0 0 10px var(--bkb-accent);transition:width .5s;}
.bkb-now.in .bkb-now-line{width:70%;}
/* 小さな帯に落ち着いた状態 */
.bkb-now.small .bkb-now-in{padding:5px 12px;border-radius:999px;background:rgba(20,20,24,.7);}
.bkb-now.small .bkb-now-txt{flex-direction:row;align-items:center;gap:7px;}
.bkb-now.small .bkb-now-txt span{font-size:11.5px;font-weight:700;max-width:56vw;}
.bkb-now.small .bkb-now-txt small{font-size:9px;}
.bkb-now.small .bkb-now-line{width:0;}
.bkb-now.small .bkb-now-eq b{width:2px;}
.bkb-now.out{animation:bkbnowout .5s ease forwards;}
@keyframes bkbnowout{to{opacity:0;transform:translateX(-50%) translateY(-10px)}}
/* 出方（管理画面で選ぶ） */
.bkb-now[data-anim="title"].in .bkb-now-in{animation:bkbnowTitle .6s cubic-bezier(.16,1,.3,1) both;}
.bkb-now[data-anim="title"].in .bkb-now-txt span{animation:bkbnowPop .7s cubic-bezier(.16,1,.3,1) both;}
@keyframes bkbnowTitle{from{opacity:0;transform:translateY(-16px) scale(.96)}to{opacity:1;transform:none}}
@keyframes bkbnowPop{from{opacity:0;letter-spacing:.3em;filter:blur(6px)}to{opacity:1;letter-spacing:.01em;filter:none}}
.bkb-now[data-anim="slide"].in{animation:bkbnowSlide .55s cubic-bezier(.16,1,.3,1) both;}
@keyframes bkbnowSlide{from{opacity:0;transform:translateX(-50%) translateX(-28vw)}to{opacity:1;transform:translateX(-50%)}}
.bkb-now[data-anim="fade"].in{animation:bkbnowFade .6s ease both;}
@keyframes bkbnowFade{from{opacity:0}to{opacity:1}}
.bkb-now[data-anim="type"] .bkb-now-txt span:after{content:"";display:inline-block;width:2px;height:1em;background:var(--bkb-accent);margin-left:2px;vertical-align:-2px;animation:bkbcaret .8s steps(1) infinite;}
.bkb-now[data-anim="type"].small .bkb-now-txt span:after{display:none;}
@keyframes bkbcaret{50%{opacity:0}}
.bkb-now-eq{display:inline-flex;align-items:flex-end;gap:2px;height:16px;}
.bkb-now-eq b{width:3px;background:var(--bkb-accent);border-radius:1px;animation:bkbeq 1s ease-in-out infinite;height:8px;box-shadow:0 0 6px var(--bkb-accent);}
.bkb-now-eq b:nth-child(2){animation-delay:.15s;height:15px;} .bkb-now-eq b:nth-child(3){animation-delay:.3s;height:10px;} .bkb-now-eq b:nth-child(4){animation-delay:.45s;height:13px;}
@keyframes bkbeq{0%,100%{transform:scaleY(.35)}50%{transform:scaleY(1)}}
body.bkb-immersive .bkb-now{opacity:0;transition:opacity .2s;}
/* v3.2：ぼかしの案内に閉じるボタン */
.bkb-blurnote{position:relative;}
.bkb-blurnote-x{position:absolute;top:6px;right:6px;width:30px;height:30px;border:0;border-radius:999px;background:transparent;color:var(--bkb-fg2);font-size:14px;cursor:pointer;}
.bkb-blurnote-x:hover{background:var(--bkb-panel2);color:var(--bkb-fg);}

/* ═══════════ v3.0：ライブラリ（本棚・Kindle 型） ═══════════ */
html.bkb-libroot{background:var(--bkb-bg);}
.bkb-lib-body{margin:0;background:var(--bkb-bg);color:var(--bkb-fg);font-family:var(--bkb-font-skin,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Hiragino Sans","Noto Sans JP",sans-serif);-webkit-font-smoothing:antialiased;}
.bkb-lib{max-width:1100px;margin:0 auto;padding:calc(12px + env(safe-area-inset-top)) 16px calc(90px + env(safe-area-inset-bottom));}
.bkb-lib-head{display:flex;align-items:center;justify-content:space-between;padding:10px 0 14px;}
.bkb-lib-head h1{margin:0;font-size:30px;font-weight:900;letter-spacing:.02em;}
.bkb-lib-tools{display:flex;gap:6px;}
.bkb-lib-ib{width:44px;height:44px;border:0;background:transparent;color:var(--bkb-fg);border-radius:12px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;}
.bkb-lib-ib:hover{background:var(--bkb-panel2);}
.bkb-lib-search{display:flex;align-items:center;gap:10px;border:1.5px solid var(--bkb-line);border-radius:999px;padding:0 18px;height:52px;background:var(--bkb-panel);color:var(--bkb-fg2);}
.bkb-lib-search input{flex:1;border:0;background:transparent;color:var(--bkb-fg);font-size:16px;outline:none;font-family:inherit;}
.bkb-lib-chips{display:flex;gap:8px;overflow-x:auto;padding:14px 0 6px;scrollbar-width:none;}
.bkb-lib-chips::-webkit-scrollbar{display:none;}
.bkb-lib-chips .bkb-chip{flex:none;border-radius:999px;padding:9px 16px;font-size:13px;}
.bkb-lib-chips .bkb-chip.on{background:var(--bkb-btn);color:var(--bkb-btn-fg);border-color:var(--bkb-btn);}
.bkb-lib-sortmenu{position:absolute;right:16px;top:70px;z-index:5;background:var(--bkb-panel);border:1px solid var(--bkb-line);border-radius:14px;box-shadow:0 16px 40px var(--bkb-shadow);overflow:hidden;min-width:170px;}
.bkb-lib-sortmenu[hidden]{display:none;}
.bkb-lib-sortmenu button{display:block;width:100%;text-align:left;border:0;background:transparent;color:var(--bkb-fg);padding:13px 16px;font-size:14px;cursor:pointer;font-family:inherit;}
.bkb-lib-sortmenu button:hover{background:var(--bkb-panel2);}
.bkb-lib-continue{margin:10px 0 6px;}
.bkb-lib-continue[hidden]{display:none;}
.bkb-lib-continue a{display:flex;align-items:center;gap:14px;text-decoration:none;color:inherit;background:var(--bkb-panel2);border:1px solid var(--bkb-line);border-radius:16px;padding:10px 14px 10px 10px;}
.bkb-lib-continue img{width:48px;height:66px;object-fit:cover;border-radius:5px;background:#fff;box-shadow:0 4px 12px var(--bkb-shadow);}
.bkb-lib-continue span{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px;}
.bkb-lib-continue small{font-size:10px;letter-spacing:.16em;color:var(--bkb-accent);font-weight:800;text-transform:uppercase;}
.bkb-lib-continue b{font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.bkb-lib-continue i{font-style:normal;font-size:12px;color:var(--bkb-fg2);}
.bkb-lib-continue em{font-style:normal;font-size:20px;color:var(--bkb-fg2);}
.bkb-lib-grid{display:grid;grid-template-columns:repeat(var(--lib-cols-m,3),1fr);gap:22px 14px;padding:14px 0;}
@media (min-width:600px){.bkb-lib-grid{grid-template-columns:repeat(4,1fr);gap:26px 18px;}}
@media (min-width:900px){.bkb-lib-grid{grid-template-columns:repeat(6,1fr);}}
.bkb-lbook{display:flex;flex-direction:column;gap:6px;text-decoration:none;color:inherit;min-width:0;}
.bkb-lbook-cover{position:relative;display:block;aspect-ratio:2/3;border-radius:6px;overflow:hidden;background:var(--bkb-panel2);box-shadow:0 6px 16px var(--bkb-shadow),0 1px 0 rgba(255,255,255,.08) inset;transition:transform .18s ease,box-shadow .18s ease;}
.bkb-lbook:hover .bkb-lbook-cover,.bkb-lbook:active .bkb-lbook-cover{transform:translateY(-3px);box-shadow:0 14px 30px var(--bkb-shadow);}
.bkb-lbook-cover img{width:100%;height:100%;object-fit:cover;display:block;}
.bkb-lbook-cover i{display:block;width:100%;height:100%;background:linear-gradient(160deg,var(--bkb-panel2),var(--bkb-panel));}
.bkb-lbook-cover:after{content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:linear-gradient(90deg,rgba(0,0,0,.28),transparent);pointer-events:none;}
.bkb-lbook-lock{position:absolute;top:6px;right:6px;width:22px;height:22px;border-radius:50%;background:rgba(20,20,24,.75);color:#fff;display:flex;align-items:center;justify-content:center;}
.bkb-lbook-kind{position:absolute;top:6px;left:6px;font-size:9px;letter-spacing:.12em;font-weight:800;padding:3px 7px;border-radius:999px;background:var(--bkb-accent);color:#fff;text-transform:uppercase;}
.bkb-lbook-no{position:absolute;bottom:6px;left:6px;font-size:10px;font-weight:800;padding:3px 7px;border-radius:6px;background:rgba(20,20,24,.72);color:#fff;}
.bkb-lbook-done{position:absolute;top:0;right:0;font-size:10px;font-weight:800;padding:14px 8px 3px;background:rgba(20,20,24,.75);color:#fff;transform:rotate(45deg) translate(22%,-40%);transform-origin:center;width:80px;text-align:center;}
.bkb-lbook-prog{position:absolute;left:0;right:0;bottom:0;height:4px;background:rgba(0,0,0,.35);}
.bkb-lbook-prog i{position:absolute;left:0;top:0;bottom:0;background:var(--bkb-accent);}
.bkb-lbook-t{font-size:12.5px;font-weight:700;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.bkb-lbook-s{font-size:11px;color:var(--bkb-fg2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.bkb-lib-empty{text-align:center;color:var(--bkb-fg2);padding:60px 0;}
.bkb-lib-empty[hidden]{display:none;}
.bkb-lib-nav{position:fixed;left:0;right:0;bottom:0;z-index:10;display:flex;justify-content:space-around;background:var(--bkb-panel);border-top:1px solid var(--bkb-line);padding:8px 0 calc(8px + env(safe-area-inset-bottom));}
.bkb-lib-nav a{display:flex;flex-direction:column;align-items:center;gap:3px;text-decoration:none;color:var(--bkb-fg2);font-size:11px;font-weight:700;min-width:80px;}
.bkb-lib-nav a.on{color:var(--bkb-accent);}

/* ═══════════ v3.1：縦読み（ネイティブ縦スクロール） ═══════════
   画像には transform を一切かけない（回転・反転しない）。幅は最大幅までで中央寄せ、縮小のみ。 */
.bkb-vert{position:absolute;left:0;right:0;top:0;bottom:0;overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch;overscroll-behavior-y:contain;background:var(--bkb-bg);z-index:1;}
.bkb-vert[hidden]{display:none;}
.bkb-vert.snap{scroll-snap-type:y mandatory;}
.bkb-vert-in{display:flex;flex-direction:column;align-items:center;gap:var(--v-gap,0px);
  padding:calc(var(--bkb-top) + var(--bkb-safe-t)) 0 calc(var(--bkb-bottom) + var(--bkb-safe-b));width:100%;box-sizing:border-box;}
/* v3.4：読み込み前のページも高さを確保する。これが 40px だったため、まだ読めていないページが
   潰れてスクロールの長さが足りず、上に戻っている途中でも「一番下」と判定されて次の話へ送られていた */
.bkb-vpage{width:100%;max-width:var(--v-w,800px);position:relative;background-size:cover;background-position:center;min-height:min(140vw,86dvh);scroll-snap-align:start;}
.bkb-vpage.ready{min-height:0;}
.bkb-vpage img{display:block;width:100%;height:auto;transform:none!important;rotate:none!important;image-orientation:from-image;opacity:0;transition:opacity .25s ease;}
.bkb-vpage.ready img{opacity:1;}
.bkb-vpage.bkb-blur img{filter:blur(var(--bkb-blur,14px));pointer-events:none;}
.bkb-vend{width:100%;max-width:var(--v-w,800px);padding:34px 0 10px;text-align:center;color:var(--bkb-fg2);font-size:12px;letter-spacing:.2em;}
body.bkb-vertmode .bkb-simple,body.bkb-vertmode .bkb-book{display:none!important;}
@media (min-width:760px){.bkb-vert-in{gap:calc(var(--v-gap,0px) + 0px);} }

/* ═══════════ v3.1：広告の枠 ═══════════ */
.bkb-ad{width:100%;max-width:var(--v-w,800px);margin:0 auto;padding:14px 12px 18px;box-sizing:border-box;display:flex;flex-direction:column;align-items:center;gap:6px;background:var(--bkb-panel);}
.bkb-ad-label{font-size:10px;letter-spacing:.24em;color:var(--bkb-fg2);text-transform:uppercase;}
.bkb-ad-in{width:100%;display:flex;justify-content:center;align-items:center;min-height:inherit;overflow:hidden;}
.bkb-ad-in img{max-width:100%;height:auto;}
.bkb-ad-in ins,.bkb-ad-in iframe{max-width:100%;}
.bkb-intro-ad,.bkb-outro-ad{margin:14px 0 0;display:flex;justify-content:center;}
.bkb-intro-ad[hidden],.bkb-outro-ad[hidden]{display:none;}
.bkb-intro-ad .bkb-ad,.bkb-outro-ad .bkb-ad{background:transparent;padding:0;}
.bkb-adfull{position:absolute;inset:0;z-index:28;background:var(--bkb-bg);display:flex;align-items:center;justify-content:center;padding:24px;animation:bkbfade .2s ease;}
.bkb-adfull[hidden]{display:none;}
.bkb-adfull-in{max-width:100%;max-height:100%;overflow:auto;}
.bkb-adfull-x{position:absolute;top:calc(12px + var(--bkb-safe-t));right:12px;width:40px;height:40px;border-radius:999px;border:0;background:rgba(20,20,24,.7);color:#fff;font-size:18px;cursor:pointer;opacity:0;pointer-events:none;transition:opacity .25s;}
.bkb-adfull-x.on{opacity:1;pointer-events:auto;}

/* ═══════════ v3.3：サイドメニュー（DMM 参考）＝左から出る一覧。丸い色付きアイコン＋1行1項目 ═══════════ */
#bkbMenu{align-items:stretch;justify-content:flex-start;}
#bkbMenu .bkb-sheet-in{width:min(86vw,380px);max-width:none;height:100%;max-height:none;border-radius:0 var(--bkb-radius) var(--bkb-radius) 0;
  box-shadow:12px 0 40px var(--bkb-shadow);animation:bkbslidein .28s cubic-bezier(.2,.8,.2,1);}
@keyframes bkbslidein{from{transform:translateX(-24px);opacity:0}to{transform:none;opacity:1}}
#bkbMenu .bkb-sheet-bar{display:none;}
.bkb-mlist{display:flex;flex-direction:column;margin:0 -16px 6px;}
.bkb-mrow{display:flex;align-items:center;gap:14px;width:100%;border:0;background:transparent;color:var(--bkb-fg);
  padding:14px 18px;font-size:15px;font-weight:700;text-align:left;cursor:pointer;text-decoration:none;font-family:inherit;
  border-bottom:1px solid var(--bkb-line);}
.bkb-mrow:hover,.bkb-mrow:active{background:var(--bkb-panel2);}
.bkb-mico{flex:none;width:34px;height:34px;border-radius:999px;display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 3px 10px rgba(0,0,0,.28);}
.bkb-mico svg{width:18px;height:18px;}
.bkb-mrow span{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.bkb-mrow em{font-style:normal;color:var(--bkb-fg2);font-size:18px;}
@media (min-width:760px){#bkbMenu .bkb-sheet-in{width:360px;}}

/* v3.3：上下バーのボタンを大きく・常に見えるように（目次などが引っ込んで押せない対策） */
.bkb-top .bkb-ib{width:42px;height:42px;}
.bkb-top .bkb-ib svg{width:22px;height:22px;}
.bkb-actions{gap:2px;}
body.bkb-immersive .bkb-top{transform:translateY(-100%);}
body.bkb-immersive .bkb-top .bkb-ib{pointer-events:none;}
/* 没入中でも右上に小さな取っ手を残し、押せば上下バーが戻る */
.bkb-peek{position:absolute;top:calc(6px + var(--bkb-safe-t));right:8px;z-index:23;width:40px;height:40px;border-radius:999px;border:0;
  background:rgba(20,20,24,.62);color:#fff;display:none;align-items:center;justify-content:center;cursor:pointer;backdrop-filter:blur(6px);}
body.bkb-immersive .bkb-peek{display:flex;}

/* v3.3：位置ごとの広告帯 */
.bkb-ad-top{position:relative;z-index:24;width:100%;max-width:none;padding:0;background:#000;}
.bkb-ad-top .bkb-ad-in img{width:100%;display:block;height:auto;}
.bkb-ad-top .bkb-ad-label{position:absolute;left:6px;top:2px;font-size:9px;color:rgba(255,255,255,.6);}
.bkb-ad-header{position:absolute;left:0;right:0;top:calc(var(--bkb-top) + var(--bkb-safe-t));z-index:20;max-width:none;padding:6px 8px;background:transparent;}
.bkb-ad-bottom{position:absolute;left:0;right:0;bottom:calc(var(--bkb-bottom) + var(--bkb-safe-b));z-index:20;max-width:none;padding:6px 8px;background:transparent;}
.bkb-ad-header .bkb-ad-in img,.bkb-ad-bottom .bkb-ad-in img{max-width:100%;height:auto;border-radius:8px;}
body.bkb-immersive .bkb-ad-header,body.bkb-immersive .bkb-ad-bottom{opacity:0;pointer-events:none;transition:opacity .2s;}
.bkb-ad-menu{margin:0;padding:12px 16px 18px;background:transparent;}
.bkb-ad-library{max-width:none;margin:6px 0 0;background:transparent;padding:0 0 6px;}
.bkb-ad-library .bkb-ad-in img{width:100%;border-radius:12px;}
html.bkb-libroot .bkb-ad-top{margin:0 -16px;}

/* ═══════════ v3.4：ランキング ═══════════ */
.bkb-rank h1{font-size:28px;}
.bkb-rank-top3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:20px 0 6px;align-items:start;}
.bkb-rank-top3 .bkb-rank-podium{height:100%;}
.bkb-rank-podium{position:relative;display:flex;flex-direction:column;gap:6px;text-decoration:none;color:inherit;
  background:linear-gradient(180deg,var(--bkb-panel2),var(--bkb-panel));border:1px solid var(--bkb-line);border-radius:16px;padding:12px 10px 14px;}
.bkb-rank-podium.p1{transform:translateY(-8px);box-shadow:0 14px 34px rgba(212,175,55,.22);border-color:rgba(212,175,55,.5);}
.bkb-rank-medal{position:absolute;top:-10px;left:50%;transform:translateX(-50%);width:30px;height:30px;border-radius:999px;color:#1a1a1e;
  display:flex;align-items:center;justify-content:center;font-weight:900;font-size:15px;box-shadow:0 6px 14px rgba(0,0,0,.35);}
.bkb-rank-podium.p1 .bkb-rank-medal{width:36px;height:36px;font-size:18px;top:-14px;}
.bkb-rank-cover{display:block;aspect-ratio:2/3;border-radius:8px;overflow:hidden;background:var(--bkb-panel2);margin-top:10px;}
.bkb-rank-cover img{width:100%;height:100%;object-fit:cover;display:block;}
.bkb-rank-podium b{font-size:12.5px;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.bkb-rank-podium small{font-size:10.5px;color:var(--bkb-fg2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.bkb-rank-podium i{font-style:normal;font-size:10px;color:var(--bkb-accent);font-weight:800;}
.bkb-rank-list{list-style:none;margin:10px 0 0;padding:0;counter-reset:none;}
.bkb-rank-list li a{display:flex;align-items:center;gap:12px;padding:10px 4px;border-bottom:1px solid var(--bkb-line);text-decoration:none;color:inherit;}
.bkb-rank-no{width:26px;text-align:center;font-weight:900;font-size:15px;color:var(--bkb-fg2);flex:none;}
.bkb-rank-th{width:40px;height:56px;border-radius:5px;overflow:hidden;background:var(--bkb-panel2);flex:none;}
.bkb-rank-th img{width:100%;height:100%;object-fit:cover;display:block;}
.bkb-rank-t{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px;}
.bkb-rank-t b{font-size:13.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.bkb-rank-t small{font-size:11px;color:var(--bkb-fg2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.bkb-rank-n{flex:none;font-weight:800;font-size:13px;display:flex;flex-direction:column;align-items:flex-end;}
.bkb-rank-n em{font-style:normal;font-size:9px;color:var(--bkb-fg2);font-weight:700;}
.bkb-rank-g{font-size:14px;margin:26px 0 2px;padding-left:10px;border-left:3px solid var(--bkb-accent);}
.bkb-rank-hours{display:flex;align-items:flex-end;gap:3px;margin:14px 0 4px;}
.bkb-rank-h{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;}
.bkb-rank-h i{display:block;width:100%;max-width:14px;border-radius:3px;background:linear-gradient(180deg,var(--bkb-accent),color-mix(in srgb,var(--bkb-accent) 40%,transparent));}
.bkb-rank-h span{font-size:8px;color:var(--bkb-fg2);}
.bkb-rank-h.now i{background:#fff;box-shadow:0 0 10px var(--bkb-accent);}
.bkb-rank-seg{margin:14px 0;display:flex;flex-direction:column;gap:8px;}
.bkb-rank-segrow{display:flex;align-items:center;gap:10px;font-size:13px;}
.bkb-rank-segrow b{width:84px;flex:none;font-weight:700;}
.bkb-rank-segrow i{flex:1;height:10px;border-radius:5px;background:var(--bkb-panel2);overflow:hidden;}
.bkb-rank-segrow i span{display:block;height:100%;background:var(--bkb-accent);}
.bkb-rank-segrow em{font-style:normal;font-size:12px;color:var(--bkb-fg2);width:56px;text-align:right;}
.bkb-rank-note{font-size:11.5px;color:var(--bkb-fg2);margin:8px 0 0;line-height:1.8;}
@media (max-width:380px){.bkb-rank-top3{gap:6px;}.bkb-rank-podium{padding:10px 7px 12px;}}

/* ═══════════ v3.5：メニュー（親メニュー＋画像タイル＋継ぎ足し表示＋実績） ═══════════ */
.bkb-mgroup{border-bottom:1px solid var(--bkb-line);margin:0 -16px;}
.bkb-mgroup-h{display:flex;align-items:center;gap:14px;width:100%;border:0;background:transparent;color:var(--bkb-fg);
  padding:14px 18px;font-size:15px;font-weight:800;text-align:left;cursor:pointer;font-family:inherit;}
.bkb-mgroup-h em{margin-left:auto;position:relative;width:16px;height:16px;flex:none;}
.bkb-mgroup-h em:before,.bkb-mgroup-h em:after{content:"";position:absolute;background:var(--bkb-fg2);border-radius:2px;transition:transform .25s,opacity .25s;}
.bkb-mgroup-h em:before{left:0;right:0;top:7px;height:2px;}
.bkb-mgroup-h em:after{top:0;bottom:0;left:7px;width:2px;}
.bkb-mgroup.open .bkb-mgroup-h em:after{transform:scaleY(0);opacity:0;}
.bkb-tiles{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:0 16px 16px;max-height:0;overflow:hidden;opacity:0;transition:max-height .32s ease,opacity .2s ease,padding .2s;}
.bkb-mgroup.open .bkb-tiles{max-height:1400px;opacity:1;}
.bkb-tile{display:block;position:relative;border-radius:12px;overflow:hidden;background:var(--bkb-panel2);text-decoration:none;color:inherit;aspect-ratio:16/10;box-shadow:0 4px 14px var(--bkb-shadow);}
.bkb-tile img{width:100%;height:100%;object-fit:cover;display:block;}
.bkb-tile .bkb-tile-ph{display:block;width:100%;height:100%;background:linear-gradient(140deg,var(--bkb-panel2),var(--bkb-panel));}
.bkb-tile b{position:absolute;left:0;right:0;bottom:0;padding:16px 10px 8px;font-size:12px;font-weight:800;color:#fff;
  background:linear-gradient(180deg,transparent,rgba(0,0,0,.78));}
.bkb-tile:active{transform:scale(.98);}
/* 継ぎ足し表示（おすすめ・ランキング・新着） */
.bkb-mfeed{margin:8px -16px 0;}
.bkb-fsec{padding:14px 16px 4px;border-top:1px solid var(--bkb-line);}
.bkb-fsec h4{margin:0 0 10px;font-size:12px;letter-spacing:.14em;color:var(--bkb-accent);font-weight:800;}
.bkb-fgrid{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.bkb-fcard{display:flex;flex-direction:column;gap:6px;text-decoration:none;color:inherit;}
.bkb-fcard img,.bkb-fcard i{display:block;width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:8px;background:var(--bkb-panel2);}
.bkb-fcard span{display:flex;flex-direction:column;gap:1px;min-width:0;}
.bkb-fcard b{font-size:12px;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.bkb-fcard small{font-size:10px;color:var(--bkb-fg2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
/* 実績の数字 */
.bkb-mstats{display:grid;grid-template-columns:repeat(auto-fit,minmax(70px,1fr));gap:8px;margin:18px -16px 0;padding:16px;border-top:1px solid var(--bkb-line);background:var(--bkb-panel2);}
.bkb-mstat{display:flex;flex-direction:column;align-items:center;gap:2px;}
.bkb-mstat b{font-size:17px;font-weight:900;font-family:var(--bkb-font-skin,inherit);}
.bkb-mstat small{font-size:9.5px;color:var(--bkb-fg2);letter-spacing:.06em;}

/* ═══════════ v3.6：はみ出し・崩れの修正と、行き先の置き場所を1つに ═══════════ */
/* メニュー：内側の帯（一覧・継ぎ足し・実績）が -16px のぶん右にはみ出して切れていた。
   はみ出しぶんを padding で戻し、横スクロールを禁止する */
#bkbMenu .bkb-sheet-in{overflow-x:hidden;}
#bkbMenu .bkb-sheet-body{overflow-x:hidden;}
.bkb-mlist,.bkb-mgroup,.bkb-mfeed,.bkb-mstats{max-width:none;}
.bkb-mfeed{margin:8px -16px 0;padding:0;}
.bkb-fsec{padding:14px 16px 6px;box-sizing:border-box;width:100%;}
.bkb-fgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;width:100%;}
.bkb-fcard{min-width:0;}
.bkb-fcard img,.bkb-fcard i{width:100%;max-width:100%;}
.bkb-fcard b,.bkb-fcard small{max-width:100%;overflow-wrap:anywhere;}
.bkb-tiles{grid-template-columns:repeat(2,minmax(0,1fr));box-sizing:border-box;width:100%;}
.bkb-tile{min-width:0;}
.bkb-mstats{box-sizing:border-box;width:auto;}
/* ランキング：スマホでの横はみ出し */
.bkb-rank{overflow-x:hidden;}
.bkb-rank .bkb-lib-chips{margin:0 -16px;padding:14px 16px 6px;width:auto;}
.bkb-rank .bkb-chip{white-space:nowrap;}
.bkb-rank-top3{grid-template-columns:repeat(3,minmax(0,1fr));}
.bkb-rank-podium{min-width:0;}
.bkb-rank-podium b,.bkb-rank-podium small,.bkb-rank-podium i{overflow-wrap:anywhere;}
.bkb-rank-list li a{min-width:0;}
.bkb-rank-t{min-width:0;}
.bkb-rank-t b,.bkb-rank-t small{max-width:100%;}
.bkb-rank-n{min-width:44px;}
.bkb-rank-hours{overflow-x:auto;}
/* 下部ナビは全画面共通。読む・本棚・ランキングの3つだけに絞る */
.bkb-lib-nav{backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);background:color-mix(in srgb,var(--bkb-panel) 88%,transparent);}
.bkb-lib-nav a{padding:2px 0;transition:color .15s;}
.bkb-lib-nav a.on{color:var(--bkb-accent);}
/* メニュー最上部の行き先（読む・本棚・ランキング）：押す面積を大きく、常に一番上 */
.bkb-mquick{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:0 0 12px;}
.bkb-mquick a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding:14px 6px;border-radius:14px;
  background:var(--bkb-panel2);border:1px solid var(--bkb-line);text-decoration:none;color:inherit;font-size:11.5px;font-weight:800;min-width:0;text-align:center;}
.bkb-mquick a.on{background:var(--bkb-btn);color:var(--bkb-btn-fg);border-color:var(--bkb-btn);}
.bkb-mquick svg{width:22px;height:22px;}
.bkb-mquick span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;}

/* ═══════════ v3.7：縦読みの案内は下向き／コマ枠の上の Canvas エフェクト ═══════════ */
/* 縦読みでは、進む方向（下）に合わせて矢印も下を向く */
.bkb-hint.down{align-items:flex-end;justify-content:center!important;padding:0 0 calc(var(--bkb-bottom) + var(--bkb-safe-b) + 18px)!important;}
body.bkb-rtl .bkb-hint.down,body.bkb-ltr .bkb-hint.down{justify-content:center;padding-left:0;padding-right:0;}
body.bkb-rtl .bkb-hint-arrows.down i,body.bkb-ltr .bkb-hint-arrows.down i{border:0 solid currentColor;border-right-width:3px;border-bottom-width:3px;transform:rotate(45deg);animation:bkbchevD 1.5s ease-in-out infinite;margin:-4px 0;}
.bkb-hint-arrows.down i:nth-child(3){animation-delay:.36s;}
/* エフェクトの層：読書の邪魔をしない（操作は透過・上下バーより下） */
.bkb-fx{position:absolute;left:0;right:0;top:0;bottom:0;z-index:14;pointer-events:none;width:100%;height:100%;display:block;}
.bkb-fx[hidden]{display:none;}
body.bkb-vertmode .bkb-fx{position:fixed;}

/* ═══════════ v3.8：入口のボタン／続きの案内／片手操作 ═══════════ */
/* 指示5：index.php のファーストビューに置く、たった1つのボタン */
.bkb-entry{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  min-height:min(72vh,560px);padding:28px 20px;text-align:center;overflow:hidden;background:#0e1016;}
.bkb-entry-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.5;filter:saturate(1.05);}
.bkb-entry:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,8,14,.25),rgba(6,8,14,.82));}
.bkb-entry-btn{position:relative;z-index:2;display:inline-flex;align-items:center;justify-content:center;
  min-width:min(88vw,420px);min-height:64px;padding:18px 28px;border-radius:999px;text-decoration:none;
  background:var(--bkb-btn,#8a6d3b);color:var(--bkb-btn-fg,#fff);font-size:18px;font-weight:900;letter-spacing:.02em;
  box-shadow:0 14px 40px rgba(0,0,0,.45);transition:transform .12s ease,filter .12s ease;}
.bkb-entry-btn:active{transform:scale(.97);filter:brightness(1.08);}
.bkb-entry-sub{position:relative;z-index:2;margin:0;color:rgba(255,255,255,.8);font-size:13px;}
/* 追加B：前回の続き／新着の1行 */
.bkb-backbar{position:absolute;left:8px;right:8px;top:calc(var(--bkb-top) + var(--bkb-safe-t) + 8px);z-index:23;
  display:flex;align-items:center;gap:10px;padding:9px 10px 9px 14px;border-radius:999px;font-size:12.5px;
  background:rgba(20,20,24,.82);color:#fff;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);box-shadow:0 10px 26px rgba(0,0,0,.35);animation:bkbup .3s ease;}
.bkb-backbar[hidden]{display:none;}
.bkb-backbar span{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.bkb-backbar-go{flex:none;padding:7px 14px;border-radius:999px;background:var(--bkb-btn);color:var(--bkb-btn-fg);font-weight:800;text-decoration:none;font-size:12px;}
.bkb-backbar.is-new .bkb-backbar-go{background:var(--bkb-accent);color:#fff;}
.bkb-backbar-x{flex:none;width:26px;height:26px;border:0;border-radius:999px;background:transparent;color:rgba(255,255,255,.7);cursor:pointer;}
body.bkb-immersive .bkb-backbar{opacity:0;pointer-events:none;transition:opacity .2s;}
/* 追加C：スクロール中はヘッダーを隠す（操作は下側に残す） */
body.bkb-hidehead .bkb-top{transform:translateY(-100%);transition:transform .25s ease;}
body.bkb-hidehead .bkb-backbar,body.bkb-hidehead .bkb-now{opacity:0;pointer-events:none;transition:opacity .2s;}
/* 指示3：飾りは押せないようにして、押した手応えは必ず返す */
.bkb-vpage,.bkb-simple-page,.bkb-f3-edges,.bkb-vend,.bkb-lqip{pointer-events:none;}
.bkb-vert,.bkb-simple{pointer-events:auto;}
.bkb-btn:active,.bkb-chip:active,.bkb-ib:active,.bkb-mrow:active,.bkb-tile:active,.bkb-lbook:active{transform:scale(.97);}
.bkb-btn,.bkb-chip,.bkb-ib,.bkb-mrow{-webkit-tap-highlight-color:transparent;transition:transform .1s ease,background .15s ease,filter .15s ease;}

/* ═══════════ v3.9：パソコン用の3カラム（左＝行き先／中央＝漫画／右＝人気・新着） ═══════════
   広い画面で左右が真っ白・真っ黒に空くのをやめ、漫画を挟み込む。スマホには一切出ない。 */
.bkb-rail{display:none;}
@media (min-width:1080px){
  body.bkb-rails{--rail:var(--bkb-rail-w,260px);}
  body.bkb-rails .bkb-rail{display:flex;flex-direction:column;gap:14px;position:fixed;top:0;bottom:0;width:var(--rail);
    padding:18px 16px calc(18px + var(--bkb-bottom));box-sizing:border-box;overflow-y:auto;overscroll-behavior:contain;z-index:12;
    background:var(--bkb-panel);border-right:1px solid var(--bkb-line);scrollbar-width:thin;}
  body.bkb-rails .bkb-rail-r{left:auto;right:0;border-right:0;border-left:1px solid var(--bkb-line);}
  body.bkb-rails .bkb-rail-l{left:0;}
  /* 中央の読む領域を柱のぶんだけ狭める */
  body.bkb-rails .bkb-vert,body.bkb-rails .bkb-simple,body.bkb-rails .bkb-book,
  body.bkb-rails .bkb-top,body.bkb-rails .bkb-bottom,body.bkb-rails .bkb-fx,
  body.bkb-rails .bkb-outro,body.bkb-rails .bkb-inf,body.bkb-rails .bkb-splash,body.bkb-rails .bkb-intro{left:var(--rail);right:var(--rail);}
  body.bkb-rails .bkb-now{left:calc(50% + 0px);}
  .bkb-rail-logo{display:block;font-weight:900;font-size:17px;text-decoration:none;color:var(--bkb-fg);font-family:var(--bkb-font-skin,inherit);margin:0 0 4px;}
  .bkb-rail-logo img{max-width:100%;height:auto;max-height:42px;display:block;}
  .bkb-rail-nav{display:flex;flex-direction:column;gap:2px;}
  .bkb-rail-nav a,.bkb-rail-nav button{display:flex;align-items:center;gap:12px;padding:11px 12px;border:0;border-radius:12px;background:transparent;
    color:var(--bkb-fg);font-size:14px;font-weight:700;text-decoration:none;cursor:pointer;font-family:inherit;text-align:left;width:100%;}
  .bkb-rail-nav a:hover,.bkb-rail-nav button:hover{background:var(--bkb-panel2);}
  .bkb-rail-nav a.on{background:var(--bkb-btn);color:var(--bkb-btn-fg);}
  .bkb-rail-sec h4{margin:6px 0 8px;font-size:11px;letter-spacing:.16em;color:var(--bkb-accent);font-weight:800;}
  .bkb-rail-item{display:flex;align-items:center;gap:9px;padding:7px 0;text-decoration:none;color:inherit;border-bottom:1px solid var(--bkb-line);}
  .bkb-rail-no{width:16px;flex:none;text-align:center;font-weight:900;font-size:12px;color:var(--bkb-fg2);}
  .bkb-rail-item img{width:34px;height:46px;object-fit:cover;border-radius:4px;flex:none;background:var(--bkb-panel2);}
  .bkb-rail-t{min-width:0;display:flex;flex-direction:column;gap:1px;}
  .bkb-rail-t b{font-size:12px;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .bkb-rail-t small{font-size:10px;color:var(--bkb-fg2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
  .bkb-rail-stats{display:flex;gap:10px;margin-top:auto;padding-top:12px;border-top:1px solid var(--bkb-line);}
  .bkb-rail-stats div{flex:1;display:flex;flex-direction:column;align-items:center;}
  .bkb-rail-stats b{font-size:16px;font-weight:900;}
  .bkb-rail-stats small{font-size:9.5px;color:var(--bkb-fg2);}
  /* パソコンでは操作系を大きく（小さすぎて押しにくかった） */
  .bkb-top .bkb-ib{width:46px;height:46px;}
  .bkb-top .bkb-ib svg{width:24px;height:24px;}
  .bkb-actions .bkb-music-btn{width:50px;height:50px;}
  .bkb-actions .bkb-music-btn svg{width:26px;height:26px;}
  /* パソコンの「再生中」は左下に置いて読書の邪魔をしない */
  body.bkb-rails .bkb-backbar{left:calc(var(--rail) + 12px);right:calc(var(--rail) + 12px);}
  .bkb-now{left:calc(var(--rail) + 18px);transform:none;top:auto;bottom:calc(var(--bkb-bottom) + 18px);align-items:flex-start;max-width:320px;}
  .bkb-now-txt span{max-width:260px;}
  .bkb-now.small .bkb-now-txt span{max-width:240px;}
  /* メニューはパソコンでは左の柱の隣に開く（画面いっぱいにしない） */
  #bkbMenu .bkb-sheet-in{width:380px;margin-left:var(--rail);}
  /* 縦読みの中央幅は柱の内側いっぱいまで */
  body.bkb-rails .bkb-vert-in{padding-left:12px;padding-right:12px;}
}
@media (min-width:1500px){ body.bkb-rails{--rail:300px;} }