/* --- Archive System (Scoped to .archives-wrapper) --- */

.archives-wrapper { 
    max-width: 900px; 
    margin: 0 auto; 
    padding: 40px; 
    background-color: var(--novel-bg); 
    color: var(--novel-text); 
    box-shadow: 0 0 20px rgba(0,0,0,0.05); 
    min-height: 80vh; 
}
body.dark-theme .archives-wrapper { 
    box-shadow: 0 0 50px rgba(0,0,0,0.8); 
}

.archives-wrapper .intro-box { 
    background-color: var(--novel-card-bg); 
    border-left: 6px solid var(--text-high); 
    padding: 30px; 
    margin-bottom: 50px; 
    border-radius: 4px; 
    line-height: 1.8; 
    position: relative; 
    overflow: hidden; 
    z-index: 1; 
}

.archives-wrapper .border-theme-main   { border-left-color: var(--text-high) !important; }
.archives-wrapper .border-theme-chars  { border-left-color: #20b2aa !important; }
.archives-wrapper .border-theme-items  { border-left-color: #d2691e !important; }
.archives-wrapper .border-theme-ghosts { border-left-color: var(--novel-soul) !important; }
.archives-wrapper .border-theme-docs   { border-left-color: var(--novel-doc) !important; }
.archives-wrapper .border-theme-dolls  { border-left-color: #ff4500 !important; }

.archives-wrapper .step-two-bg {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-image: url('/public/Images/bg-Time.webp');
    background-position: center;
    opacity: 0.15;
    mix-blend-mode: multiply;
    z-index: 1;
    pointer-events: none;
    transition: opacity 0.5s ease;
}
body.dark-theme .archives-wrapper .step-two-bg { opacity: 0.25; mix-blend-mode: screen; }
.archives-wrapper .border-theme-dolls .step-two-bg { mix-blend-mode: normal !important; opacity: 0.05; }
body.dark-theme .archives-wrapper .border-theme-dolls .step-two-bg { mix-blend-mode: normal !important; opacity: 0.12; }

.archives-wrapper .tab-nav { 
    display: flex; justify-content: center; flex-wrap: wrap; gap: 15px; margin: 40px 0; 
    border-bottom: 2px solid var(--novel-border); padding-bottom: 20px; 
}
.archives-wrapper .tab-btn { 
    background: transparent; border: 2px solid var(--novel-border); border-radius: 8px; 
    color: var(--novel-text); font-size: 1.25em; cursor: pointer; padding: 10px 24px; 
    opacity: 0.7; transition: all 0.3s ease; font-weight: bold; white-space: nowrap; 
}
.archives-wrapper .tab-btn:hover { opacity: 1; transform: translateY(-2px); border-color: var(--text-high); }
.archives-wrapper .tab-btn.active { 
    opacity: 1; color: #ffffff !important; background: #555555; border-color: #555555; 
}
body.dark-theme .archives-wrapper .tab-btn.active { background: #888888; border-color: #888888; }
.archives-wrapper .tab-content { display: none; }
.archives-wrapper .tab-content.active { display: block; animation: fadeIn 0.5s; }

.archives-wrapper .filter-nav { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 30px; justify-content: center; align-items: center; }
.archives-wrapper .filter-btn { 
    background-color: var(--novel-card-bg); color: var(--novel-text) !important; 
    border: 1px solid var(--novel-border); padding: 8px 16px; cursor: pointer; border-radius: 4px; font-weight: bold; 
}
.archives-wrapper .filter-btn:hover, .archives-wrapper .filter-btn.active { background-color: var(--novel-doc); color: #ffffff !important; border-color: var(--novel-doc); }

.archives-wrapper .grid-box { 
    display: grid; gap: 20px; padding: 25px; background: rgba(0,0,0,0.15); border-radius: 8px; 
    border: 1px solid var(--novel-border); position: relative; overflow: hidden; z-index: 1;
}
.archives-wrapper .char-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }

.archives-wrapper .my-card { 
    background-color: var(--novel-card-bg); border: 1px solid var(--novel-border); color: var(--novel-text); 
    padding: 15px; text-decoration: none; display: flex; flex-direction: column; align-items: center; 
    transition: all 0.3s ease; border-radius: 6px; cursor: pointer; position: relative; overflow: hidden; z-index: 1;
}
.archives-wrapper .my-card:hover { transform: translateY(-5px); border-color: var(--text-high); color: var(--text-high); }
.archives-wrapper .my-card img, 
.archives-wrapper .char-detail-card .Profile_Photo img { 
    width: 100%; 
    height: auto; 
    object-fit: contain; 
    border-radius: 4px; 
    margin-bottom: 12px; 
}

.archives-wrapper .ghost-tag-cloud { 
    display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 40px; padding: 20px; 
    background: rgba(0,0,0,0.15); border-radius: 8px; border: 1px solid var(--novel-border); justify-content: center;
}
.archives-wrapper .ghost-tag { 
    background: var(--novel-card-bg); color: var(--novel-text); padding: 6px 15px; border-radius: 20px; 
    cursor: pointer; border: 1px solid var(--novel-border); transition: all 0.2s ease;
}

.archives-wrapper .item-detail-card, .archives-wrapper .char-detail-card, .archives-wrapper .doc-detail-card, .archives-wrapper .uni-card {
    display: none; margin: 0 auto 30px auto; color: var(--novel-text); background: var(--novel-card-bg); 
    border: 1px solid var(--novel-border); border-radius: 8px; position: relative; z-index: 1;
}

.archives-wrapper .grid-box::before, 
.archives-wrapper .ghost-tag-cloud::before {
    content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background-image: url('/public/Images/bg-step-one.webp');
    background-repeat: repeat; background-position: center;
    opacity: 0.12; mix-blend-mode: multiply; z-index: -1; pointer-events: none;
}
.sub-ghost-card img {
    width: 100%;        /* 強制圖片寬度填滿卡片寬度 */
    height: 180px;      /* 設定一個固定的高度，讓排版整齊 */
    object-fit: cover;  /* 圖片會自動裁切以填滿空間，不會變形 */
    border-radius: 4px;
    margin-bottom: 10px;
    display: block;
}

/* 確保網格本身也能穩定運作 */
.sub-ghost-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
}
/* 請直接貼在 article-layout.css 的最下面，不要有 <style> 標籤 
.sub-ghost-header { color: var(--novel-text); border-bottom: 1px dashed var(--novel-border); padding-bottom: 10px; margin-bottom: 15px; }
.sub-ghost-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 15px; }
.sub-ghost-card { background: var(--novel-bg); border: 1px solid var(--novel-border); padding: 12px; border-radius: 6px; text-align: center; }
.sub-ghost-card img { width: 100%; height: auto; border-radius: 4px; margin-bottom: 10px; }
.sub-ghost-card h4 { margin: 0 0 5px 0; font-size: 1em; color: var(--main-color); }
.sub-ghost-card .loc { display: block; font-size: 0.8em; color: var(--text-high); margin-bottom: 8px; }
.sub-ghost-card p { font-size: 0.85em; opacity: 0.8; margin: 0; text-align: justify; display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 3; line-clamp: 3; overflow: hidden; }
*/

    /* 大一統上下排版 RWD 核心架構 */
        .db-split-container {
            display: flex;
            flex-direction: column;
            gap: 25px;
            width: 100%;
        }
        .db-sidebar {
            width: 100%;
            background: #15171a;
            border: 1px solid var(--novel-border);
            border-radius: 6px;
            padding: 20px;
            box-sizing: border-box;
        }
        .db-display-board {
            width: 100%;
            padding: 30px;
            background: rgba(15, 15, 15, 0.6);
            border: 1px solid var(--novel-border);
            border-radius: 6px;
            box-sizing: border-box;
            min-height: 300px;
        }
        .db-item-pool {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            max-height: 300px;
            overflow-y: auto;
            padding: 10px;
            background: rgba(0,0,0,0.2);
            border-radius: 4px;
            border: 1px solid rgba(255,255,255,0.05);
        }
    /* =========================================
       檔案館專用版面容器
       ========================================= */
    .archives-wrapper { 
        max-width: 900px; 
        margin: 0 auto; 
        padding: 40px; 
        background-color: var(--novel-bg); 
        color: var(--novel-text); 
        box-shadow: 0 0 20px rgba(0,0,0,0.05); 
        min-height: 80vh; 
    }
    body.dark-theme .archives-wrapper { 
        box-shadow: 0 0 50px rgba(0,0,0,0.8); 
    }

    /* 🌟 升級：加入 position: relative 與 overflow: hidden 結界 */
    .intro-box { 
        background-color: var(--novel-card-bg); 
        border-left: 6px solid var(--text-high); /* 預設顏色 */
        padding: 30px; 
        margin-bottom: 50px; 
        border-radius: 4px; 
        line-height: 1.8; 
        position: relative; 
        overflow: hidden; 
        z-index: 1; 
    }

    /* 🌟 新增：由 CSS 統一控管各分類引言的左側邊框色 (取代 HTML inline style) */
    .border-theme-main   { border-left-color: var(--text-high) !important; }
    .border-theme-chars  { border-left-color: #20b2aa !important; }
    .border-theme-items  { border-left-color: #d2691e !important; }
    .border-theme-ghosts { border-left-color: var(--novel-soul) !important; }
    .border-theme-docs   { border-left-color: var(--novel-doc) !important; }
    .border-theme-dolls  { border-left-color: #ff4500 !important; }

    /* 🌟 新增：引言區塊專屬背景浮水印 (step-two) */
    .step-two-bg {
        position: absolute;
        top: 0; left: 0; width: 100%; height: 100%;
        background-image: url('/public/Images/bg-Time.webp'); /* 可替換為你想要的圖 */
        background-position: center;
        opacity: 0.15;
        mix-blend-mode: multiply;
        z-index: 1; /* 在這個結界裡，Z-index:1 會壓在底色上，但要讓文字設 Z-index:2 浮上來 */
        pointer-events: none;
        transition: opacity 0.5s ease;
    }
    body.dark-theme .step-two-bg {
        opacity: 0.25;
        mix-blend-mode: screen;
    }
    /* 🌟 瀏覽器渲染防爆修正：當引言框內含有 iframe 影片時，關閉混合模式避免播放器崩潰 */
    .border-theme-dolls .step-two-bg {
        mix-blend-mode: normal !important;
        opacity: 0.05; /* 亮色模式：沒有色彩增值，稍微調淡使其自然 */
    }
    body.dark-theme .border-theme-dolls .step-two-bg {
        mix-blend-mode: normal !important;
        opacity: 0.12; /* 暗色模式：稍微調淡，融入曜石黑背景 */
    }
    /* =========================================
       1. 主頁籤切換 (Tab Navigation)
       ========================================= */
    .tab-nav { 
        display: flex; 
        justify-content: center; 
        flex-wrap: wrap; 
        gap: 15px; 
        margin: 40px 0; 
        border-bottom: 2px solid var(--novel-border); 
        padding-bottom: 20px; 
    }
    .tab-btn { 
        background: transparent; 
        border: 2px solid var(--novel-border); 
        border-radius: 8px; 
        color: var(--novel-text); 
        font-size: 1.25em; 
        cursor: pointer; 
        padding: 10px 24px; 
        opacity: 0.7; 
        transition: all 0.3s ease; 
        font-weight: bold; 
        white-space: nowrap; 
    }
    .tab-btn:hover { 
        opacity: 1; 
        transform: translateY(-2px); 
        box-shadow: 0 5px 12px rgba(0,0,0,0.1); 
        border-color: var(--text-high);
    }
    .tab-btn.active { 
        opacity: 1; 
        /* 強制使用高對比：深灰底色 + 純白字體 */
        color: #ffffff !important; 
        background: #555555; 
        border-color: #555555;
        box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    }
    /* 在深色模式下稍微提亮，保持對比度 */
    body.dark-theme .tab-btn.active {
        background: #888888;
        border-color: #888888;
    }
    .tab-content { display: none; }
    .tab-content.active { display: block; animation: fadeIn 0.5s; }
    @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

    /* =========================================
       2. 子過濾器與搜尋框 (Filter & Search)
       ========================================= */
    .filter-nav { 
        display: flex; 
        flex-wrap: wrap; 
        gap: 10px; 
        margin-bottom: 30px; 
        justify-content: center; 
        align-items: center; 
    }
    /* 沒選到時：強制使用主題文字顏色 (白/灰) */
    .filter-btn { 
        background-color: var(--novel-card-bg); 
        color: var(--novel-text) !important; 
        border: 1px solid var(--novel-border); 
        padding: 8px 16px; 
        cursor: pointer; 
        border-radius: 4px; 
        font-weight: bold; 
        transition: all 0.3s ease; 
    }

    /* 有選到時：換成主色背景，並強制使用純白字 */
    .filter-btn:hover, .filter-btn.active { 
        background-color: var(--novel-doc); 
        color: #ffffff !important; 
        border-color: var(--novel-doc); 
    }
    
    .search-box { 
        padding: 8px 15px; 
        border-radius: 20px; 
        border: 1px solid var(--novel-border); 
        background-color: var(--novel-card-bg); 
        color: var(--novel-text); 
        min-width: 250px; 
        margin-left: auto; 
    }
    .search-box:focus { 
        outline: none; 
        border-color: var(--text-high); 
        box-shadow: 0 0 5px rgba(245, 175, 2, 0.5); 
    }

    /* =========================================
       3. 萬用網格與小卡片設計 (Grid & Cards)
       ========================================= */
    .grid-box { 
        display: grid; 
        gap: 20px; 
        padding: 25px;
        background: rgba(0,0,0,0.15);
        border-radius: 8px;
        border: 1px solid var(--novel-border);
        position: relative;
        overflow: hidden;
        z-index: 1;
    }
    .char-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
    .item-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }

    /* 🌟 升級：幫卡片加上 position: relative 與 z-index 結界 */
    .my-card { 
        background-color: var(--novel-card-bg); 
        border: 1px solid var(--novel-border); 
        color: var(--novel-text); 
        padding: 15px; 
        text-decoration: none; 
        display: flex; 
        flex-direction: column; 
        align-items: center; 
        transition: all 0.3s ease; 
        box-shadow: 0 5px 12px rgba(0,0,0,0.1); 
        border-radius: 6px; 
        cursor: pointer; 
        position: relative; 
        overflow: hidden; 
        z-index: 1; 
    }
    .my-card:hover { 
        transform: translateY(-5px); 
        box-shadow: 0 15px 30px rgba(0,0,0,0.3); 
        border-color: var(--text-high); 
        color: var(--text-high); 
    }
    
    /* 圖片特效：人物照片套用懷舊濾鏡，Hover 時恢復彩色 */
    .my-card img { 
        width: 100%; 
        height: auto; 
        object-fit: contain; 
        border-radius: 4px; 
        margin-bottom: 12px; 
        transition: filter 0.3s; 
    }
    .char-grid .my-card img { filter: sepia(40%) grayscale(60%) contrast(1.1); }
    .char-grid .my-card:hover img { filter: sepia(0%) grayscale(0%) contrast(1); }
    
    .item-grid .my-card { padding: 20px 15px; }
    .item-grid .my-card img { max-width: 80%; }
    .item-grid .ch-desc { 
        font-size: 0.85em; 
        color: var(--main-color); 
        text-align: justify; 
        margin-top: 10px; 
        opacity: 0.8; 
        display: -webkit-box; 
        -webkit-box-orient: vertical; 
        -webkit-line-clamp: 3; 
        line-clamp: 3; 
        overflow: hidden; 
    }
    .ch-num { 
        font-size: 1.05em; 
        letter-spacing: 1px; 
        text-align: center; 
        margin-top: 5px; 
        font-weight: bold; 
    }

    /* =========================================
       4. 文字標籤雲排版 (Tag Cloud)
       ========================================= */
    .ghost-tag-cloud {
        display: flex; 
        flex-wrap: wrap; 
        gap: 10px; 
        margin-bottom: 40px; 
        padding: 20px; 
        background: rgba(0,0,0,0.15); 
        border-radius: 8px; 
        border: 1px solid var(--novel-border); 
        justify-content: center;
        /* 🌟 新增這三行，將外框變成結界 */
        position: relative;
        overflow: hidden;
        z-index: 1;
    }
    
    /* 🌟 升級：幫標籤加上 position: relative 與 z-index 結界 */
    .ghost-tag {
        background: var(--novel-card-bg); 
        color: var(--novel-text); 
        padding: 6px 15px; 
        border-radius: 20px; 
        font-size: 0.95em; 
        cursor: pointer; 
        border: 1px solid var(--novel-border); 
        transition: all 0.2s ease; 
        letter-spacing: 1px;
        position: relative;
        overflow: hidden;
        z-index: 1;
    }
    .ghost-tag:hover {
        background: var(--novel-soul); 
        color: #FFF; 
        border-color: var(--novel-soul); 
        transform: translateY(-2px); 
        box-shadow: 0 4px 8px rgba(138, 43, 226, 0.4);
    }

    /* =========================================
       5. 怨靈專屬手帳排版 (Ghost Details)
       ========================================= */
    .ghost-group { 
        background-color: var(--novel-card-bg); 
        border: 1px solid var(--novel-soul); 
        border-radius: 8px; 
        margin-bottom: 25px; 
        overflow: hidden; 
        box-shadow: 0 4px 15px rgba(0,0,0,0.2); 
        transition: display 0.3s; 
    }
    .ghost-summary { 
        padding: 20px; 
        cursor: pointer; 
        display: flex; 
        align-items: center; 
        gap: 20px; 
        background: rgba(0,0,0,0.15); 
        transition: background 0.3s; 
    }
    .ghost-summary:hover { background: rgba(75, 0, 130, 0.2); }
    .ghost-summary img { 
        width: 90px; 
        height: 90px; 
        object-fit: cover; 
        border-radius: 50%; 
        border: 2px solid var(--novel-soul); 
        box-shadow: 0 0 10px var(--novel-soul); 
    }
    .ghost-title { flex: 1; }
    .ghost-title h3 { 
        color: var(--novel-soul); 
        margin: 0 0 8px 0; 
        font-size: 1.4em; 
        text-shadow: 0 0 5px rgba(138, 43, 226, 0.3); 
    }
    .ghost-title p { margin: 0; opacity: 0.8; font-size: 0.95em; line-height: 1.5; }
    
    .expand-icon { font-size: 1.5em; color: var(--novel-soul); transition: transform 0.3s; }
    details[open] .expand-icon { transform: rotate(180deg); }
    details summary { list-style: none; }
    details summary::-webkit-details-marker { display: none; }

    .ghost-details { padding: 25px; border-top: 1px solid var(--novel-border); }
    .related-doc { 
        display: flex; 
        gap: 20px; 
        background: var(--novel-bg); 
        padding: 15px; 
        border-radius: 6px; 
        border-left: 4px solid var(--text-high); 
        margin-bottom: 25px; 
        align-items: center; 
    }
    .related-doc img { max-width: 150px; border-radius: 4px; }
    .related-doc div { flex: 1; }
    .doc-loc { font-style: italic; color: var(--text-high); font-size: 0.85em; display: block; margin-bottom: 8px; }

    .sub-ghost-header { color: var(--novel-text); border-bottom: 1px dashed var(--novel-border); padding-bottom: 10px; margin-bottom: 15px; }
    .sub-ghost-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 15px; }
    .sub-ghost-card { background: var(--novel-bg); border: 1px solid var(--novel-border); padding: 12px; border-radius: 6px; text-align: center; }
    .sub-ghost-card img { width: 100%; height: auto; border-radius: 4px; margin-bottom: 10px; }
    .sub-ghost-card h4 { margin: 0 0 5px 0; font-size: 1em; color: var(--main-color); }
    .sub-ghost-card .loc { display: block; font-size: 0.8em; color: var(--text-high); margin-bottom: 8px; }
    .sub-ghost-card p { 
        font-size: 0.85em; opacity: 0.8; margin: 0; text-align: justify; 
        display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 3; line-clamp: 3; overflow: hidden;
    }

    .section-header { 
        text-align: center; color: var(--text-high); margin: 60px 0 30px 0; 
        font-weight: normal; letter-spacing: 2px; border-bottom: 1px solid var(--novel-border); padding-bottom: 15px; 
    }

    /* =========================================
       6. 萬用詳細資料大卡片 (人物、道具、文件 共用基礎)
       ========================================= */
    /* 🌟 升級：加上 position: relative 與 z-index 結界 */
    .item-detail-card, .char-detail-card, .doc-detail-card, .uni-card {
        display: none; 
        margin: 0 auto 30px auto; 
        color: var(--novel-text);
        background: var(--novel-card-bg); 
        border: 1px solid var(--novel-border); 
        border-radius: 8px; 
        overflow: hidden; 
        box-shadow: 0 4px 15px rgba(0,0,0,0.2);
        position: relative;
        z-index: 1;
    }
    
    /* 針對不同分類微調寬度與專屬裝飾 */
    .item-detail-card { max-width: 600px; }
    .char-detail-card { max-width: 700px; }
    .doc-detail-card { 
        max-width: 800px; 
        border-left: 5px solid var(--novel-doc); 
    }

    /* =========================================
       🌟 7. 統一注入容器底層特效 (Step One 浮水印)
       ========================================= */
    .grid-box::before, 
    .ghost-tag-cloud::before {
        content: '';
        position: absolute;
        top: 0; left: 0; width: 100%; height: 100%;
        background-image: url('/public/Images/bg-step-one.webp');
        
        /* 🌟 關鍵修正：刪除 background-size: cover; 改用平鋪 */
        background-repeat: repeat; 
        background-position: center;
        
        opacity: 0.12; /* 可以微調透明度，讓紋理更柔走 */
        mix-blend-mode: multiply;
        z-index: -1;
        pointer-events: none;
        transition: opacity 0.5s ease;
    }

    body.dark-theme .grid-box::before, 
    body.dark-theme .ghost-tag-cloud::before {
        opacity: 0.20;
        mix-blend-mode: screen;
    }
    /* =========================================
       🌟 8. 萬用圖片放大燈箱 (Lightbox)
       ========================================= */
    .clickable-lightbox-img {
        cursor: zoom-in;
        transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .clickable-lightbox-img:hover {
        transform: scale(1.02);
        box-shadow: 0 0 10px rgba(255, 255, 255, 0.2); 
    }
    .img-modal {
        display: none; 
        position: fixed;
        z-index: 99999; 
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.85); 
        cursor: zoom-out; 
        opacity: 0;
        transition: opacity 0.3s ease;
        justify-content: center;
        align-items: center;
    }
    .img-modal.show {
        display: flex;
        opacity: 1;
    }
    .img-modal .modal-content {
        max-width: 90vw;
        max-height: 90vh;
        object-fit: contain;
        border-radius: 4px;
        box-shadow: 0 0 25px rgba(0, 0, 0, 0.8);
        transform: scale(0.9);
        transition: transform 0.3s ease;
    }
    .img-modal.show .modal-content {
        transform: scale(1); 
    }

/* =========================================
   角色詳細卡片專屬版面 (完美繼承 style.css 變數)
   ========================================= */
.bw-split-layout { display: flex; flex-direction: row; width: 100%; }

.bw-left-hero {
    flex: 0 0 40%; position: relative; display: flex; align-items: center; justify-content: center; overflow: hidden;
    background: rgba(0,0,0,0.03); /* 移除寫死純黑，改用微灰底凸顯立繪 */
}
body.dark-theme .bw-left-hero { background: rgba(255,255,255,0.02); }

.bw-main-立繪 { width: 100%; height: 100%; object-fit: cover; object-position: center top; display: block; transition: transform 0.5s ease; }
.bw-left-hero:hover .bw-main-立繪 { transform: scale(1.03); }

/* 立繪上的浮水印名字：保持純白並加強陰影，確保在任何底色都清晰 */
.bw-char-overlay-name { position: absolute; bottom: 20px; left: 20px; color: #fff; font-size: 2.2rem; font-weight: 800; text-shadow: 0 2px 10px rgba(0,0,0,0.9), 0 0 20px rgba(0,0,0,0.6); letter-spacing: 0.05em; pointer-events: none; }

/* 移除寫死的黑底，直接繼承外層卡片的 var(--novel-card-bg) */
.bw-right-content { flex: 1; padding: 40px; display: flex; flex-direction: column; justify-content: center; background: transparent; }

/* 完美對接日夜文字變數，徹底解決手機版隱形問題 */
.bw-paragraph { font-size: 1.05rem; line-height: 1.85; letter-spacing: 0.06em; text-align: justify; margin: 0 0 1.5rem 0; color: var(--text-main); }
.bw-first-paragraph::first-letter { font-size: 2.3rem; font-weight: bold; color: var(--accent-orange); float: left; margin: 0.1rem 0.6rem 0 0; line-height: 1; }

.bw-sub-photo-wrapper { padding: 0 40px; margin-bottom: 30px; text-align: center; }
.bw-sub-photo { max-width: 100%; height: auto; border-radius: 6px; box-shadow: 0 8px 25px rgba(0,0,0,0.2); }
body.dark-theme .bw-sub-photo { box-shadow: 0 8px 25px rgba(0,0,0,0.6); }

/* 劇透與文件手帳區塊：拔除寫死黑底，改用系統框線與微透明底色 */
.bw-details { margin: 15px 40px; border-radius: 8px; overflow: hidden; background: rgba(0, 0, 0, 0.03); border: 1px solid var(--border-color); transition: all 0.3s ease; }
body.dark-theme .bw-details { background: rgba(255,255,255,0.03); }
.bw-details[open] { background: rgba(0, 0, 0, 0.06); }
body.dark-theme .bw-details[open] { background: rgba(255,255,255,0.06); }

.bw-summary { padding: 16px 24px; font-size: 1.1rem; font-weight: 600; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; user-select: none; color: var(--text-main); }
.bw-summary::-webkit-details-marker { display: none; }
.bw-summary:hover { background: rgba(var(--primary-rgb), 0.05); }

.bw-spoiler { border-left: 4px solid #a94442; }
.bw-documents { border-left: 4px solid var(--primary-color); margin-bottom: 40px; }
.bw-details-content { padding: 24px; border-top: 1px solid var(--border-color); }
.bw-spoiler-char-name { display: block; font-size: 1.2rem; color: #a94442; margin-bottom: 1.5rem; }

.bw-doc-node { margin-bottom: 40px; border-bottom: 1px dashed var(--border-color); padding-bottom: 30px; }
.bw-doc-node:last-child { border: none; margin-bottom: 0; padding-bottom: 0; }
.bw-doc-node-title { font-size: 1.15rem; margin: 0 0 15px 0; font-weight: 600; color: var(--text-main); }
.bw-doc-img-container { display: flex; flex-direction: column; align-items: center; gap: 15px; }
.bw-doc-img, .bw-gallery-img { max-width: 100%; height: auto; border-radius: 4px; box-shadow: 0 4px 15px rgba(0,0,0,0.15); }
body.dark-theme .bw-doc-img, body.dark-theme .bw-gallery-img { box-shadow: 0 8px 20px rgba(0,0,0,0.7); }
.bw-doc-node-desc { font-size: 0.9rem; text-align: right; margin-top: 12px; opacity: 0.8; font-style: italic; color: var(--primary-color); }
.bw-gallery-node { text-align: center; margin-top: 20px; }


/* =========================================
   📱 手機版 RWD 極致覆寫
   ========================================= */
@media (max-width: 768px) {
    .bw-split-layout { 
        flex-direction: column; 
    }
    
    .bw-left-hero { 
        height: 45vh; /* 手機版固定英雄區塊高度 */
        width: 100%; 
    }
    
    .bw-main-立繪 {
        /* 在手機版，圖片依然保持 cover 裁切，並套用底部淡出漸層 */
        mask-image: linear-gradient(to bottom, black 75%, transparent 100%);
        -webkit-mask-image: linear-gradient(to bottom, black 75%, transparent 100%);
    }
    
    .bw-char-overlay-name { 
        font-size: 1.8rem; 
        bottom: 25px; 
        left: 20px; 
    }
    
    .bw-right-content { 
        padding: 25px 20px; 
        background: transparent; 
    }
    
    .bw-paragraph { font-size: 1rem; line-height: 1.75; }
    .bw-sub-photo-wrapper, .bw-details { margin-left: 15px; margin-right: 15px; }
    .bw-sub-photo-wrapper { padding: 0; }
    .bw-details-content { padding: 16px; }
    .bw-summary { padding: 14px 16px; font-size: 1rem; }
}
/* ==========================================
   🌟 全域懸浮按鈕 (回到頂部)
   ========================================== */
#zero-back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--novel-doc, #5b7e91); /* 預設使用文獻主題色 */
    color: #fff;
    border: 1px solid var(--novel-border);
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0,0,0,0.5);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
}

#zero-back-to-top.show {
    opacity: 1;
    visibility: visible;
}

#zero-back-to-top:hover {
    transform: translateY(-5px);
    background: var(--text-high, #fff);
    color: var(--novel-doc, #5b7e91);
}
/* ==========================================
   📂 分類折疊面板與方塊網格 (還原原版 UI)
   ========================================== */
.bw-doc-accordion {
    background: var(--novel-card-bg);
    border: 1px solid var(--novel-border);
    border-radius: 6px;
    margin-bottom: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    width: 100%;
}
.bw-doc-accordion summary {
    padding: 16px 20px;
    font-size: 1.1em;
    font-weight: bold;
    color: var(--text-main);
    background: rgba(0,0,0,0.15);
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
body.dark-theme .bw-doc-accordion summary { background: rgba(255,255,255,0.05); }
.bw-doc-accordion summary:hover { background: rgba(var(--primary-rgb), 0.15); }
.bw-doc-accordion summary::-webkit-details-marker { display: none; }

.bw-doc-accordion[open] summary { border-bottom: 1px dashed var(--novel-border); }
.bw-doc-accordion .acc-icon { font-family: monospace; font-size: 1.2em; color: var(--text-muted); }
.bw-doc-accordion[open] .acc-icon::before { content: "[-]"; }
.bw-doc-accordion:not([open]) .acc-icon::before { content: "[+]"; }

.accordion-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 12px;
    padding: 20px;
}
.accordion-grid-btn {
    background: transparent;
    border: 1px solid var(--novel-border);
    color: var(--novel-text);
    padding: 12px 10px;
    text-align: center;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.95em;
    font-family: inherit;
    letter-spacing: 0.5px;
}
.accordion-grid-btn:hover, .accordion-grid-btn.active-tag {
    border-color: var(--primary-color);
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--text-high);
    transform: translateY(-2px);
}