/* ガイドレッスンの一覧・詳細 — 出典: 旧WP mu-plugin taian-bo-guide-board.php taian_bo_styles() */
.bo-board{background:var(--bg,#f8f9fb);padding:64px 24px 110px}
.bo-board-inner{max-width:940px;margin:0 auto}

/* ── コントロールバー ── */
.bo-board-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin:0 0 18px}
.bo-tabs{display:flex;align-items:center;gap:10px}
.bo-tab{margin:0;font-family:inherit;font-size:15px;font-weight:700;letter-spacing:-.2px;line-height:1.4;padding:11px 30px;border-radius:10px;border:1px solid #d6dded;background:#fff;color:#2b3038}
.bo-tab.is-active{background:transparent;border-color:transparent;color:#0047AB;box-shadow:none}
.bo-tools{display:flex;align-items:center;gap:10px;margin-left:auto}
.bo-search{position:relative;display:flex;align-items:center}
.bo-search-ico{position:absolute;left:14px;width:15px;height:15px;color:#a3abbb;pointer-events:none}
.bo-search-input{width:270px;font-family:inherit;font-size:13.5px;color:#2b3038;padding:11px 16px 11px 37px;border:1px solid #dfe4ee;border-radius:10px;background:#fff;outline:none;transition:border-color .15s,box-shadow .15s}
.bo-search-input::placeholder{color:#a3abbb}
.bo-search-input:focus{border-color:#0047AB;box-shadow:0 0 0 3px rgba(0,71,171,.1)}
.bo-sort{position:relative;display:flex;align-items:center}
.bo-sort-select{appearance:none;-webkit-appearance:none;font-family:inherit;font-size:13.5px;font-weight:500;color:#2b3038;padding:11px 34px 11px 16px;border:1px solid #dfe4ee;border-radius:10px;background:#fff;cursor:pointer;outline:none;transition:border-color .15s,box-shadow .15s}
.bo-sort-select:focus{border-color:#0047AB;box-shadow:0 0 0 3px rgba(0,71,171,.1)}
.bo-sort-caret{position:absolute;right:12px;width:14px;height:14px;color:#8a92a0;pointer-events:none}

/* ── リスト(行=個別ページへのリンク) ── */
.bo-board-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.bo-post{background:#fff;border:1px solid #e2e8f4;border-radius:12px;transition:border-color .15s,box-shadow .15s}
.bo-post:hover{border-color:#c3d3f2;box-shadow:0 4px 16px rgba(0,71,171,.07)}
.bo-post[hidden]{display:none}

.bo-post-head{width:100%;display:flex;align-items:center;gap:12px;padding:16px 18px;background:transparent;border:0;text-align:left;font-family:inherit;border-radius:12px;text-decoration:none;color:inherit}
.bo-post-play{flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:#0047AB;color:#fff;display:flex;align-items:center;justify-content:center}
.bo-post-play svg{width:18px;height:18px;margin-left:1px}
.bo-post-tt{flex:1 1 auto;min-width:0;display:flex;align-items:baseline;gap:10px}
/* h1/h2 で出す場合もカード見出しの見た目に揃える(ブラウザ既定のサイズ・余白を打ち消す) */
.bo-post-title{margin:0;font-size:15px;font-weight:700;color:#1a1a1a;line-height:1.5;letter-spacing:-.2px}
h1.bo-post-title,h2.bo-post-title{font-size:15px}
.bo-post-sub{font-size:12px;font-weight:400;color:#8a92a0;line-height:1.5;letter-spacing:-.1px;position:relative;padding-left:11px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bo-post-sub::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:1px;height:11px;background:#dfe4ee}
.bo-post-dur{flex:0 0 auto;font-size:12.5px;font-weight:500;color:#8a92a0;font-variant-numeric:tabular-nums}
.bo-post-caret{flex:0 0 auto;width:16px;height:16px;color:#0047AB;transition:transform .15s}

/* ── 一覧の行(サムネ + 公開日)。詳細ページの見出し(.bo-lesson-head)には掛けない ── */
.bo-row-head{align-items:center;gap:14px}
/* 一覧では再生アイコンをサムネの上に重ねるので、行頭の丸アイコンは使わない */
.bo-row-head > .bo-post-play{display:none}
.bo-post-th{flex:0 0 auto;position:relative;width:160px;aspect-ratio:16/9;
  overflow:hidden;background:#e8edf6;line-height:0}
.bo-post-th img{width:100%;height:100%;object-fit:cover;display:block}
.bo-post-th-play{position:absolute;left:6px;bottom:6px;
  width:22px;height:22px;border-radius:50%;background:rgba(0,71,171,.88);color:#fff;
  display:flex;align-items:center;justify-content:center;transition:background-color .15s}
.bo-post-th-play svg{width:13px;height:13px;margin-left:1px}
.bo-post:hover .bo-post-th-play{background:#0047AB}
.bo-post-durbadge{position:absolute;right:6px;bottom:6px;padding:1px 5px;border-radius:4px;
  background:rgba(0,0,0,.72);font-size:11px;font-weight:600;line-height:1.45;color:#fff;
  font-variant-numeric:tabular-nums}
/* タイトル・サブ・日付は縦積み(既定は横並びなので上書きする) */
.bo-row-head .bo-post-tt{flex-direction:column;align-items:flex-start;gap:3px;width:100%}
.bo-row-head .bo-post-title{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;max-width:100%}
.bo-row-head .bo-post-sub{padding-left:0;max-width:100%}
.bo-row-head .bo-post-sub::before{display:none}
.bo-post-meta{margin-top:2px;font-size:12px;line-height:1.5;color:#8a92a0;font-variant-numeric:tabular-nums}
.bo-post:hover .bo-post-caret{transform:translateX(2px)}

.bo-empty{display:none;margin:0;padding:52px 20px;text-align:center;font-size:14px;color:#8a92a0;background:#fff;border:1px solid #e2e8f4;border-radius:12px}
.bo-panel.is-empty .bo-empty{display:block}
.bo-panel.is-empty .bo-board-list{display:none}

/* ── 個別レッスン ── */
.bo-crumb{margin:0 0 14px;display:flex;flex-wrap:wrap;align-items:center;gap:7px;font-size:12.5px;line-height:1.6}
.bo-crumb a{font-weight:600;color:#0047AB;text-decoration:none}
.bo-crumb a:hover{text-decoration:underline}
.bo-crumb span[aria-hidden]{color:#b7c0cf}
.bo-crumb-cur{color:#8a92a0;font-weight:500;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bo-lesson{border-color:#a9c2f2;box-shadow:0 6px 24px rgba(0,71,171,.08)}
.bo-lesson:hover{border-color:#a9c2f2;box-shadow:0 6px 24px rgba(0,71,171,.08)}
.bo-lesson-head{align-items:flex-start;padding-bottom:12px;cursor:auto}
/* 詳細ページ上部の見出しはリンクではないが、文字上ではテキストカーソル(I)を出す (2026-09-28) */
.bo-lesson-head .bo-post-title,.bo-lesson-head .bo-post-sub,.bo-lesson-head .bo-post-dur{cursor:text}
.bo-lesson-head .bo-post-tt{flex-direction:column;align-items:flex-start;gap:3px}
.bo-lesson-head .bo-post-sub{padding-left:0;white-space:normal}
.bo-lesson-head .bo-post-sub::before{display:none}
.bo-lesson-head .bo-post-dur{margin-top:4px}
.bo-lesson-head .bo-post-title{font-size:16px}

.bo-post-body{padding:0 18px 18px}
/* 右カラムは動画と同じ高さまで伸ばし、学べることカードを下端に揃える */
.bo-post-grid{display:grid;grid-template-columns:minmax(0,1.62fr) minmax(0,1fr);gap:16px;align-items:stretch}
.bo-post-media{align-self:start;position:relative;width:100%;aspect-ratio:16/9;border-radius:10px;overflow:hidden;background:#3f3f3f}
.bo-post-media video{width:100%;height:100%;display:block;background:#3f3f3f;object-fit:cover}
.bo-post-media iframe{position:absolute;inset:0;width:100%;height:100%;border:0;display:block}
/* 右カラムは中身を絶対配置にして、行の高さを動画側だけで決めさせる。
   こうすると全文がどれだけ長くても、カードの高さは動画の高さのまま変わらない。 */
.bo-post-side{position:relative;min-height:0}
.bo-post-side-in{position:absolute;inset:0;display:flex;flex-direction:column;gap:12px;min-height:0;overflow:hidden}

/* 説明+書き起こし全文。動画の高さに収め、この枠内だけスクロールさせる */
.bo-post-desc{flex:1 1 auto;min-height:40px;overflow-y:auto;padding-right:10px;font-size:12px;font-weight:400;color:#4a5261;line-height:1.75;letter-spacing:.1px;overscroll-behavior:contain}
.bo-post-desc::-webkit-scrollbar{width:6px}
.bo-post-desc::-webkit-scrollbar-track{background:#f1f4f9;border-radius:99px}
.bo-post-desc::-webkit-scrollbar-thumb{background:#c8d2e2;border-radius:99px}
.bo-post-desc::-webkit-scrollbar-thumb:hover{background:#a9b7cd}
.bo-post-desc{scrollbar-width:thin;scrollbar-color:#c8d2e2 #f1f4f9}
/* スクロールバー常時表示用の自作レール(モバイルはネイティブが操作中しか出ないため)。
   PC ではレールを出さず、これまで通りネイティブのスクロールバーを使う。 */
.bo-desc-wrap{position:relative;flex:1 1 auto;min-height:0;display:flex;flex-direction:column}
.bo-desc-rail{display:none}
.bo-desc-lead{margin:0}
.bo-desc-label{margin:14px 0 6px;font-size:12px;font-weight:700;color:#0047AB;letter-spacing:-.2px}
/* ＜全体内容＞ の上に大きめの余白をあける(要約との区切り) */
.bo-desc-label-full{margin-top:112px}
.bo-desc-full{color:#2b3038;line-height:1.95}

.bo-learn{margin-top:auto;border:1px solid #e3e8f2;border-radius:10px;padding:12px 14px 12px;background:#fff;flex:0 1 auto;min-height:0;overflow-y:auto;overscroll-behavior:contain}
.bo-learn-head{display:flex;align-items:center;gap:7px;font-size:12px;font-weight:700;color:#1a1a1a;letter-spacing:-.2px;padding-bottom:9px;border-bottom:1px solid #eef1f7;margin-bottom:9px}
.bo-learn-ico{width:15px;height:15px;color:#0047AB;flex:0 0 auto}
.bo-learn-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.bo-learn-list li{display:flex;align-items:flex-start;gap:8px;font-size:11.5px;font-weight:400;color:#3c4450;line-height:1.6}
.bo-learn-list svg{flex:0 0 auto;width:12px;height:12px;color:#0047AB;margin-top:3px}

/* ── 前後のレッスン ── */
.bo-pager{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px}
.bo-pager-item{display:flex;flex-direction:column;gap:5px;padding:14px 16px;background:#fff;border:1px solid #e2e8f4;border-radius:12px;text-decoration:none;transition:border-color .15s,box-shadow .15s}
a.bo-pager-item:hover{border-color:#c3d3f2;box-shadow:0 4px 16px rgba(0,71,171,.07)}
.bo-pager-item.is-empty{background:transparent;border-color:transparent}
.bo-pager-lab{font-size:11.5px;font-weight:700;color:#0047AB;letter-spacing:.2px}
.bo-pager-tt{font-size:13px;font-weight:600;color:#1a1a1a;line-height:1.55;letter-spacing:-.2px}
.bo-pager-item.is-next{text-align:right}

/* ── 関連リンク ── */
.bo-rel{margin-top:34px}
.bo-rel-h{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:0 0 14px;font-size:17px;font-weight:700;color:#1a1a1a;letter-spacing:-.3px;padding-bottom:10px;border-bottom:2px solid #0047AB}
.bo-rel-h a{color:inherit;text-decoration:none}
.bo-rel-h a:hover{color:#0047AB;text-decoration:underline}
.bo-rel-count{flex:0 0 auto;font-size:12.5px;font-weight:600;color:#8a92a0}

/* 一覧内の「表示中」行 */
.bo-post.is-current{background:#f6f9ff;border-color:#a9c2f2}
.bo-post.is-current .bo-post-head{cursor:default}
.bo-post.is-current .bo-post-play{background:#9db4de}
.bo-post-now{flex:0 0 auto;font-size:11px;font-weight:700;color:#0047AB;background:#e6eeff;padding:3px 9px;border-radius:999px;white-space:nowrap}

@media (max-width:860px){
  .bo-board{padding:40px 16px 72px}
  .bo-board-bar{gap:12px}
  .bo-tabs{flex:1 1 100%}
  .bo-tab{padding:10px 22px;font-size:14px}
  .bo-tools{flex:1 1 100%}
  .bo-search{flex:1 1 auto}
  .bo-search-input{width:100%}
  .bo-post-head{gap:10px;padding:14px 13px;align-items:flex-start}
  .bo-post-dur,.bo-post-caret{margin-top:4px}
  .bo-row-head{align-items:center;gap:11px}
  .bo-row-head .bo-post-caret{margin-top:0}
  .bo-post-th{width:112px}
  .bo-post-th-play{left:4px;bottom:4px;width:19px;height:19px}
  .bo-post-th-play svg{width:11px;height:11px}
  .bo-post-durbadge{right:4px;bottom:4px;font-size:10px}
  .bo-post-meta{font-size:11.5px}
  .bo-post-tt{flex-direction:column;align-items:flex-start;gap:2px}
  .bo-post-sub{padding-left:0;white-space:normal}
  .bo-post-sub::before{display:none}
  .bo-post-title{font-size:14.5px}
  .bo-post-body{padding:0 13px 15px}
  .bo-post-grid{grid-template-columns:1fr;gap:14px}
  .bo-post-side{position:static}
  .bo-post-side-in{position:static;inset:auto;overflow:visible}
  .bo-desc-wrap{flex:0 0 auto}
  .bo-post-desc{flex:0 0 auto;max-height:220px;font-size:12.5px;padding-right:14px}
  /* モバイルはネイティブのスクロールバーを隠し、常時表示のレールに置き換える */
  .bo-post-desc{scrollbar-width:none}
  .bo-post-desc::-webkit-scrollbar{width:0;height:0}
  .bo-desc-rail{display:block;position:absolute;top:2px;right:0;bottom:2px;width:4px;border-radius:99px;background:#eef1f7;pointer-events:none}
  .bo-desc-wrap.is-nosc .bo-desc-rail{display:none}
  .bo-desc-thumb{position:absolute;left:0;top:0;width:100%;border-radius:99px;background:#c8d2e2}
  .bo-learn{margin-top:0;flex:0 0 auto;overflow:visible}
  .bo-rel-h{font-size:16px}
  .bo-pager{grid-template-columns:1fr}
  .bo-pager-item.is-empty{display:none}
  .bo-pager-item.is-next{text-align:left}
}

/* ── 目次のタイムスタンプ(クリックで再生位置へ) ── */
.bo-ts{display:inline;margin:0;padding:0 1px;border:0;background:none;
  font:inherit;font-variant-numeric:tabular-nums;color:#0047AB;font-weight:600;
  cursor:pointer;border-radius:3px;transition:background .12s,color .12s}
/* 本文中の内部リンク */
.bo-ilink{color:#0047AB;text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px}
.bo-ilink:hover{color:#000B83;background:#EEF3FC}
.bo-ts:hover,.bo-ts:focus-visible{background:#e8eefb;color:#000B83;text-decoration:underline}
.bo-ts:focus-visible{outline:2px solid #0047AB;outline-offset:1px}

/* 公開日・執筆の行(10/8、レッスン詳細の見出し右) */
.bo-post-meta{font-size:12px;font-weight:400;color:#8a92a0;line-height:1.5;white-space:nowrap;margin-left:auto}
@media (max-width:640px){.bo-post-meta{white-space:normal;margin-left:0}}