/* _tools/root/extract_inline_css.py が書き出した。直すときは、これを直接直してよい */
    .typo-box {
        margin: 2.5rem 0;
        padding: 1rem 1.1rem;
        border: 1px solid #ddd;
        border-radius: 14px;
        background: #fff;
    }

    .typo-title {
        margin: 0 0 .35rem 0;
        font-size: 1.05rem;
    }

    .typo-desc {
        margin: 0 0 1rem 0;
        opacity: .8;
    }

    .typo-label {
        display: block;
        font-weight: 600;
        margin: .7rem 0 .35rem 0;
    }

    .typo-textarea {
        width: 100%;
        box-sizing: border-box;
        padding: .7rem .75rem;
        border: 1px solid #ccc;
        border-radius: 12px;
        font: inherit;
        line-height: 1.5;
        resize: vertical;
    }

    .typo-row {
        margin-top: .9rem;
        display: flex;
        gap: .75rem;
        align-items: center;
    }

    .typo-btn {
      padding: .7rem 1.5rem;
      border: 0;
      border-radius: 12px;
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      color: #fff;
      cursor: pointer;
      font: inherit;
    }

    .typo-btn[disabled] {
        opacity: .6;
        cursor: not-allowed;
    }

    .typo-status {
        font-size: .95rem;
        opacity: .9;
    }

    .typo-box summary {
        cursor: pointer;
        list-style: none;
        outline: none;
    }

    .typo-box summary::-webkit-details-marker {
        display: none;
    }

    .typo-box summary::before {
        content: '▶';
        display: inline-block;
        margin-right: 0.5rem;
        transition: transform 0.2s;
        font-size: 0.8em;
    }

    .typo-box[open] summary::before {
        transform: rotate(90deg);
    }

    .typo-box[open] {
        padding-bottom: 1.5rem;
    }

    /* モダンなナビゲーションボタン用スタイル (Light Theme) */
    .page-nav {
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 1rem;
        margin: 2rem 0;
        padding: 1rem 0;
        width: 100%;
    }

    .nav-btn {
        flex: 1;
        text-align: center;
        padding: 0.8rem 1rem;
        background: #ffffff;
        border: 1px solid rgba(0, 0, 0, 0.1);
        border-radius: 50px;
        color: #333;
        text-decoration: none;
        font-weight: 600;
        font-size: 1rem;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
    }

    .nav-btn:hover {
        background: #f0f0f0;
        transform: translateY(-2px);
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        border-color: rgba(102, 126, 234, 0.3);
        color: #000;
    }

    .nav-btn span {
        font-size: 1.2rem;
        line-height: 1;
    }

    @media (max-width: 37.5rem) {
        .page-nav {
            flex-direction: column;
            gap: 0.75rem;
        }

        .nav-btn {
            width: 100%;
            padding: 0.7rem 1rem;
        }
    }

        *[id] {
            scroll-margin-top: 6rem;
        }
        .no1 {
            margin-bottom: 1.5rem;
        }
        h2 .no1, h3 .no1 {
            margin-bottom: 0;
        }

        /* --- Refined Expandable Sticky Header Styles --- */
        .stacked-header-container {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 3000;
            pointer-events: none;
            display: flex;
            flex-direction: column;
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }

        .breadcrumb-view {
            height: 28px;
            pointer-events: auto;
            background: rgba(255, 255, 255, 0.45);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            padding: 0 1.2rem;
            display: flex;
            align-items: center;
            font-size: 0.75rem;
            color: #777;
            font-family: "Hiragino Mincho ProN", "BIZ UDPMincho", "Yu Mincho", YuMincho, "Noto Serif CJK JP", "Noto Serif JP", serif;
            font-weight: 500;
            cursor: pointer;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            transition: all 0.3s ease;
            opacity: 0;
            transform: translateY(-100%);
            visibility: hidden;
        }

        .breadcrumb-view.visible {
            opacity: 1;
            transform: translateY(0);
            visibility: visible;
        }

        .breadcrumb-view:hover {
            background: rgba(255, 255, 255, 0.7);
            color: #333;
        }

        .breadcrumb-view .separator {
            margin: 0 0.5rem;
            color: #aaa;
            font-weight: 300;
        }

        .stacked-view {
            pointer-events: auto;
            max-height: 0;
            opacity: 0;
            overflow: hidden;
            background: rgba(255, 255, 255, 0.85);
            transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
        }

        .stacked-header-container.is-expanded .stacked-view {
            max-height: 100vh;
            opacity: 1;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid rgba(0, 0, 0, 0.1);
        }

        .stack-bar {
            height: 32px;
            line-height: 32px;
            padding: 0 1.5rem;
            cursor: pointer;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            color: #444;
            font-size: 0.85rem;
            font-weight: 600;
            font-family: "Hiragino Mincho ProN", "BIZ UDPMincho", "Yu Mincho", YuMincho, "Noto Serif CJK JP", "Noto Serif JP", serif;
            display: flex;
            align-items: center;
            transition: background 0.2s ease, padding-left 0.3s ease;
        }

        .stack-bar:hover {
            background: rgba(102, 126, 234, 0.08);
            color: #667eea;
        }

        /* Hierarchy-based Indentation for Expanded State */
        .stack-bar[data-level="1"] { padding-left: 1.5rem; }
        .stack-bar[data-level="2"] { padding-left: 3.0rem; }
        .stack-bar[data-level="3"] { padding-left: 4.5rem; }
        .stack-bar[data-level="4"] { padding-left: 6.0rem; }
        .stack-bar[data-level="5"] { padding-left: 7.5rem; }
        .stack-bar[data-level="6"] { padding-left: 9.0rem; }

        .stack-bar::before {
            content: '▸';
            margin-right: 0.5rem;
            color: #667eea;
            font-size: 0.7rem;
        }
        .stack-bar[data-level='1']::before { content: '◆'; font-size: 0.9rem; }

        @media (max-width: 48rem) {
            .breadcrumb-view { height: 24px; font-size: 0.7rem; padding: 0 0.8rem; }
            .stack-bar { height: 30px; font-size: 0.8rem; }
            .stack-bar[data-level="1"] { padding-left: 1rem; }
        .stack-bar[data-level="2"] { padding-left: 1.8rem; }
        .stack-bar[data-level="3"] { padding-left: 2.6rem; }
        .stack-bar[data-level="4"] { padding-left: 3.4rem; }
        .stack-bar[data-level="5"] { padding-left: 4.2rem; }
        .stack-bar[data-level="6"] { padding-left: 5.0rem; }
        }

  .typo-input{
    display:block;
    width:100%;
    box-sizing:border-box;
    padding:.7rem .75rem;
    border:1px solid #ccc;
    border-radius:12px;
    font:inherit;
    line-height:1.5;
    background:#fff;
    color:#111;
  }
  .typo-box.dark-theme .typo-input{
    border-color:rgba(255,255,255,0.15);
    background:rgba(0,0,0,0.2);
    color:#fff;
  }