:root{--brand-nav:#162a45;--brand-nav-text:#fff;--brand-nav-sub:#d0dbe7;--brand-primary:#1d3557;--brand-primary-hover:#122238;--brand-primary-light:#eaf1f8;--brand-accent:#e63946;--brand-accent-hover:#c92a37;--brand-accent-light:#fde8ea;--brand-gold:#d4941e;--brand-gold-light:#fef5e7;--brand-star:#e09015;--bg-app:#f4f6f9;--bg-card:#fff;--bg-card-hover:#fafbfc;--bg-muted:#edf1f6;--bg-subtle:#f8fafc;--ink-primary:#19202c;--ink-secondary:#475569;--ink-muted:#64748b;--ink-faint:#94a3b8;--link-color:#2563eb;--link-hover-bg:#2563eb;--link-hover-text:#fff;--xhs-red:#ff2442;--xhs-red-light:#fff0f2;--xhs-red-border:#ffd1d8;--shelf-wood:#4a3424;--shelf-wood-light:#5d4330;--shelf-wood-dark:#322115;--shelf-shadow:#00000059;--line-subtle:#e2e8f0;--line-regular:#cbd5e1;--line-strong:#94a3b8;--card-shadow:0 2px 8px #0f172a0f, 0 1px 2px #0f172a0a;--card-shadow-hover:0 12px 28px #0f172a1f, 0 3px 8px #0f172a0f;--cover-shadow:0 4px 14px #0f172a24, 0 1px 3px #0f172a14;--font-serif:-apple-system, 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monospace;font-family:var(--font-serif);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}[data-theme=warm]{--brand-nav:#4a2818;--brand-nav-text:#faede6;--brand-nav-sub:#e6cec1;--brand-primary:#7a3a1e;--brand-primary-hover:#5e2a14;--brand-primary-light:#fbeee8;--brand-accent:#c44525;--brand-accent-hover:#a33519;--brand-accent-light:#fceeda;--brand-gold:#c97a16;--brand-gold-light:#fef4e6;--brand-star:#c97a16;--bg-app:#f7f3ec;--bg-card:#fdfbf7;--bg-card-hover:#f9f4ec;--bg-muted:#ede7dc;--bg-subtle:#faf7f0;--ink-primary:#2c221b;--ink-secondary:#57483e;--ink-muted:#7d6c60;--ink-faint:#a69689;--link-color:#a84824;--xhs-red:#c44525;--xhs-red-light:#faece6;--xhs-red-border:#f0cfc2;--line-subtle:#e6ddce;--line-regular:#d7cab8;--line-strong:#bdae99}[data-theme=dark]{--brand-nav:#0f1318;--brand-nav-text:#e2e8f0;--brand-nav-sub:#94a3b8;--brand-primary:#3b82f6;--brand-primary-hover:#2563eb;--brand-primary-light:#1e293b;--brand-accent:#f43f5e;--brand-accent-hover:#e11d48;--brand-accent-light:#33151f;--brand-gold:#f59e0b;--brand-gold-light:#2d2311;--brand-star:#fbbf24;--bg-app:#0f141c;--bg-card:#19202c;--bg-card-hover:#212b3b;--bg-muted:#141a24;--bg-subtle:#1e2634;--ink-primary:#f1f5f9;--ink-secondary:#cbd5e1;--ink-muted:#94a3b8;--ink-faint:#64748b;--link-color:#60a5fa;--xhs-red:#fb7185;--xhs-red-light:#2b141a;--xhs-red-border:#4d1c27;--shelf-wood:#1e1712;--shelf-wood-light:#2c221b;--shelf-wood-dark:#120e0a;--shelf-shadow:#000000bf;--line-subtle:#242f40;--line-regular:#334155;--line-strong:#475569;--card-shadow:0 2px 8px #0006, 0 1px 2px #0003;--card-shadow-hover:0 12px 28px #0009, 0 3px 8px #0000004d;--cover-shadow:0 4px 14px #0000008c, 0 1px 4px #0000004d}*{box-sizing:border-box}html,body{background-color:var(--bg-app);min-width:320px;color:var(--ink-primary);margin:0;padding:0;transition:background-color .2s,color .2s}::selection{background-color:var(--brand-primary);color:#fff}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-app)}::-webkit-scrollbar-thumb{background:var(--line-strong);border:2px solid var(--bg-app);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--ink-muted)}button,input,select{font:inherit;-webkit-tap-highlight-color:transparent}a{color:var(--link-color);text-decoration:none}a:hover{text-decoration:underline}input:focus-visible,select:focus-visible,button:focus-visible,a:focus-visible{outline:2px solid var(--brand-accent);outline-offset:2px}@media 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4px;font-size:15px;font-weight:700;line-height:1.35;display:-webkit-box;overflow:hidden}.fallback-author{opacity:.85;margin:0;font-size:11px}.fallback-bottom-tag{opacity:.6;text-align:right;letter-spacing:.06em;font-size:9px}.rating-stars-row{align-items:center;gap:4px;display:inline-flex}.rating-stars-icons{color:var(--brand-star);letter-spacing:-.05em;font-size:12px}.rating-num-val{color:var(--brand-star);font-size:12px;font-weight:700;font-family:var(--font-mono)}.rating-none-text{color:var(--ink-faint);font-size:11px}.shelf-grid-layout{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px;display:grid}.book-grid-card-item{background:var(--bg-card);border:1px solid var(--line-regular);cursor:pointer;border-radius:4px;flex-direction:column;justify-content:space-between;padding:12px;transition:transform .16s,box-shadow .16s,border-color .16s;display:flex;position:relative}.book-grid-card-item:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:0 8px 20px #00000014}.card-cover-container{margin-bottom:10px;position:relative}.card-hot-badge{background:var(--brand-accent);color:#fff;z-index:5;border-radius:2px;padding:2px 6px;font-size:10px;font-weight:700;position:absolute;top:6px;left:6px}.card-bookmark-btn{-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);color:#fff;cursor:pointer;z-index:5;background:#0f172abf;border:none;border-radius:2px;padding:3px 7px;font-size:11px;font-weight:600;transition:all 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8px;font-size:11px}.xhs-commenter-row{justify-content:space-between;align-items:center;margin-bottom:3px;display:flex}.xhs-commenter-name{color:var(--ink-primary);white-space:nowrap;text-overflow:ellipsis;font-weight:600;overflow:hidden}.xhs-likes-count{color:var(--brand-accent);font-weight:700}.xhs-card-reason-snippet{color:var(--ink-secondary);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:0;font-size:11.5px;line-height:1.45;display:-webkit-box;overflow:hidden}.card-bottom-rating-meta{border-top:1px dashed var(--line-subtle);justify-content:space-between;align-items:center;margin-top:6px;padding-top:6px;display:flex}.card-category-tag{color:var(--brand-primary);background:var(--brand-primary-light);border-radius:2px;padding:1px 5px;font-size:11px;font-weight:600}.shelf-list-layout{flex-direction:column;gap:14px;display:flex}.book-list-row-item{background:var(--bg-card);border:1px solid var(--line-regular);cursor:pointer;border-radius:4px;grid-template-columns:110px 1fr 140px;align-items:center;gap:20px;padding:18px;transition:transform .14s,border-color .14s;display:grid}.book-list-row-item:hover{border-color:var(--brand-primary);transform:translateY(-2px)}.list-cover-col{width:110px}.list-info-col{flex-direction:column;gap:6px;display:flex}.list-title-header{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.list-book-title{font-family:var(--font-title);color:var(--ink-primary);margin:0;font-size:17px;font-weight:800}.list-category-badge{color:var(--brand-primary);background:var(--brand-primary-light);border-radius:2px;padding:2px 6px;font-size:11px;font-weight:600}.list-high-score-tag{color:var(--brand-gold);background:var(--brand-gold-light);border-radius:2px;padding:1px 5px;font-size:10px;font-weight:700}.list-author-meta{color:var(--ink-secondary);margin:0;font-size:12.5px}.list-rating-row{align-items:center;gap:8px;display:flex}.list-xhs-comment-card{background:var(--bg-subtle);border:1px solid var(--line-regular);border-radius:3px;margin-top:4px;padding:10px 12px}.xhs-quote-header{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:4px;font-size:11.5px;display:flex}.xhs-commenter-user{color:var(--ink-primary)}.xhs-likes-badge{color:var(--brand-accent);font-weight:700}.xhs-mentions-badge{color:var(--ink-muted)}.xhs-quote-body{color:var(--ink-primary);margin:0;font-size:13px;line-height:1.6}.list-actions-col{flex-direction:column;align-items:stretch;gap:8px;display:flex}.list-bookmark-btn{background:var(--brand-accent-light);border:1px solid var(--brand-accent);color:var(--brand-accent);cursor:pointer;text-align:center;border-radius:3px;padding:6px 10px;font-size:12px;font-weight:600;transition:all .12s}.list-bookmark-btn.is-active{background:var(--brand-accent);color:#fff}.list-view-detail-btn{background:var(--brand-primary-light);border:1px solid var(--brand-primary);color:var(--brand-primary);cursor:pointer;text-align:center;border-radius:3px;padding:6px 10px;font-size:12px;font-weight:600}.list-douban-link-btn{background:var(--bg-subtle);border:1px solid var(--line-strong);color:var(--ink-secondary);border-radius:3px;justify-content:center;align-items:center;gap:4px;padding:6px 10px;font-size:12px;font-weight:600;text-decoration:none;transition:all .12s;display:inline-flex}.list-douban-link-btn:hover{background:var(--brand-primary);border-color:var(--brand-primary);color:#fff;text-decoration:none}.wooden-bookshelf-layout{background:var(--bg-card);border:1px solid var(--line-regular);border-radius:4px;padding:24px}.wooden-shelf-instructions{text-align:center;color:var(--ink-muted);background:var(--bg-muted);border-radius:3px;margin-bottom:24px;padding:6px 12px;font-size:12px}.wooden-shelf-level{margin-bottom:32px}.wooden-shelf-books-row{grid-template-columns:repeat(auto-fill,minmax(110px,1fr));align-items:flex-end;gap:14px;padding:0 10px;display:grid}.standing-book-wrapper{cursor:pointer;flex-direction:column;align-items:center;transition:transform .18s;display:flex}.standing-book-wrapper:hover{transform:translateY(-8px)}.standing-book-cover{width:100%}.standing-book-title{font-family:var(--font-title);color:var(--ink-primary);text-align:center;white-space:nowrap;text-overflow:ellipsis;width:100%;margin-top:6px;font-size:11px;font-weight:700;overflow:hidden}.standing-xhs-tag{color:var(--brand-accent);align-items:center;gap:3px;margin-top:2px;font-size:10px;font-weight:700;display:flex}.standing-star{color:var(--brand-gold)}.wooden-shelf-floor-plank{background:linear-gradient(180deg, var(--shelf-wood-light) 0%, var(--shelf-wood) 70%, var(--shelf-wood-dark) 100%);border-top:2px solid var(--shelf-wood-light);width:100%;height:14px;box-shadow:0 6px 12px var(--shelf-shadow);border-bottom:2px solid #1a1008;border-radius:2px;margin-top:6px}.app-modal-backdrop{-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:1000;background:#0f172ab8;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.book-detail-dialog-modal{background:var(--bg-card);border:1px solid var(--line-regular);border-radius:6px;width:min(780px,100%);max-height:90vh;padding:28px;position:relative;overflow-y:auto;box-shadow:0 20px 48px #00000059}.modal-close-cross{background:var(--bg-muted);border:1px solid var(--line-subtle);width:28px;height:28px;color:var(--ink-secondary);cursor:pointer;border-radius:3px;justify-content:center;align-items:center;display:flex;position:absolute;top:12px;right:12px}.modal-content-grid{grid-template-columns:200px 1fr;gap:28px;display:grid}.modal-cover-side{flex-direction:column;gap:12px;display:flex}.modal-large-cover{width:100%}.modal-cover-buttons{flex-direction:column;gap:8px;display:flex}.modal-bookmark-toggle{background:var(--brand-accent-light);border:1px solid var(--brand-accent);color:var(--brand-accent);cursor:pointer;border-radius:3px;padding:8px 12px;font-size:13px;font-weight:700;transition:all .12s}.modal-bookmark-toggle.is-active{background:var(--brand-accent);color:#fff}.modal-douban-link{background:var(--brand-primary-light);border:1px solid var(--brand-primary);color:var(--brand-primary);border-radius:3px;justify-content:center;align-items:center;gap:5px;padding:8px 12px;font-size:13px;font-weight:600;text-decoration:none;display:inline-flex}.modal-douban-link:hover{background:var(--brand-primary);color:#fff;text-decoration:none}.modal-info-side{flex-direction:column;gap:16px;display:flex}.modal-title-header{border-bottom:1px solid var(--line-subtle);padding-bottom:10px}.modal-category-chip{color:var(--brand-primary);background:var(--brand-primary-light);border-radius:2px;padding:2px 8px;font-size:12px;font-weight:700}.modal-book-name{font-family:var(--font-title);color:var(--ink-primary);margin:6px 0 4px;font-size:23px;font-weight:800}.modal-author-name{color:var(--ink-muted);margin:0;font-size:13.5px}.modal-xhs-dossier-card{background:var(--bg-subtle);border:1px solid var(--line-regular);border-radius:4px;padding:14px 16px}.dossier-header-bar{justify-content:space-between;align-items:center;margin-bottom:10px;display:flex}.dossier-badge{color:var(--brand-primary);font-size:13px;font-weight:700}.dossier-confidence{color:var(--ink-muted);background:#0000000a;border-radius:2px;padding:2px 6px;font-size:11px}.dossier-metrics-grid{background:var(--bg-card);border:1px solid var(--line-subtle);border-radius:3px;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:10px;padding:8px 10px;display:grid}.dossier-metric-item{flex-direction:column;display:flex}.metric-label{color:var(--ink-faint);font-size:10px;font-weight:600}.metric-val{color:var(--ink-primary);margin-top:2px;font-size:13px;font-weight:700}.metric-hot{color:var(--brand-accent)}.dossier-quote-content{margin-top:8px}.dossier-quote-box{background:var(--bg-card);border:1px solid var(--line-subtle);border-radius:3px;padding:10px 14px}.dossier-quote-text{color:var(--ink-primary);margin:0;font-size:13.5px;line-height:1.7}.modal-douban-meta-block{background:var(--bg-subtle);border:1px solid var(--line-subtle);border-radius:4px;padding:12px 14px}.douban-meta-heading{color:var(--ink-primary);margin:0 0 8px;font-size:13px;font-weight:700}.douban-score-row{align-items:center;gap:14px;margin-bottom:6px;display:flex}.score-badge-box{border-right:1px solid var(--line-regular);flex-direction:column;align-items:center;padding-right:12px;display:flex}.score-big{color:var(--brand-star);font-size:24px;font-weight:800;line-height:1}.score-unit{color:var(--ink-muted);margin-top:2px;font-size:10px}.score-stars-col{flex-direction:column;gap:2px;display:flex}.score-desc{color:var(--ink-muted);font-size:11px}.douban-cast-text{color:var(--ink-secondary);margin:6px 0 0;font-size:12px;line-height:1.5}.random-pick-dialog-modal{background:var(--bg-card);border:1px solid var(--line-regular);border-radius:6px;width:min(620px,100%);padding:26px;position:relative;box-shadow:0 20px 48px #00000059}.random-main-heading{font-family:var(--font-title);margin:0 0 14px;font-size:20px;font-weight:800}.random-showcase-layout{grid-template-columns:130px 1fr;align-items:center;gap:20px;display:grid}.random-right-details{flex-direction:column;gap:6px;display:flex}.random-cat-chip{color:var(--brand-primary);font-size:11px;font-weight:700}.random-book-title{font-family:var(--font-title);margin:0;font-size:17px;font-weight:800}.random-author-line{color:var(--ink-muted);margin:0;font-size:12.5px}.random-xhs-highlight-box{background:var(--bg-subtle);border:1px solid var(--line-regular);border-radius:3px;padding:8px 10px;font-size:12px}.random-xhs-recommender{justify-content:space-between;align-items:center;margin-bottom:3px;display:flex}.random-likes-count{color:var(--brand-accent);font-weight:700}.random-context-line{color:var(--ink-secondary);margin:0;font-size:11.5px;line-height:1.5}.random-dialog-actions-row{gap:8px;margin-top:8px;display:flex}.random-next-btn{background:var(--brand-primary);border:1px solid var(--brand-primary);color:#fff;cursor:pointer;border-radius:3px;flex:1;padding:7px 10px;font-size:12px;font-weight:700}.random-bookmark-btn{background:var(--brand-accent-light);border:1px solid var(--brand-accent);color:var(--brand-accent);cursor:pointer;border-radius:3px;flex:1;padding:7px 10px;font-size:12px;font-weight:700}.random-bookmark-btn.is-active{background:var(--brand-accent);color:#fff}.random-douban-btn{background:var(--bg-subtle);border:1px solid var(--line-strong);color:var(--ink-secondary);border-radius:3px;flex:1;justify-content:center;align-items:center;gap:4px;padding:7px 10px;font-size:12px;font-weight:600;text-decoration:none;display:inline-flex}.empty-results-state{justify-content:center;padding:48px 0;display:flex}.empty-dialog-card{text-align:center;background:var(--bg-card);border:1px dashed var(--line-strong);border-radius:4px;max-width:420px;padding:32px 20px}.empty-dialog-card h2{font-family:var(--font-title);margin:0 0 8px;font-size:18px}.empty-dialog-card p{color:var(--ink-muted);margin:0 0 16px;font-size:13px;line-height:1.6}.empty-reset-action-btn{background:var(--brand-primary);color:#fff;cursor:pointer;border:none;border-radius:3px;padding:7px 18px;font-size:12px;font-weight:700}.brand-page-footer{border-top:1px solid var(--line-regular);text-align:center;color:var(--ink-muted);margin-top:48px;padding-top:20px;font-size:12px;line-height:1.7}.footer-nav-links{margin-bottom:6px}.footer-dot{color:var(--ink-faint);margin:0 6px}.footer-copyright-note{max-width:600px;color:var(--ink-faint);margin:0 auto}@media (width<=900px){.book-list-row-item{grid-template-columns:90px 1fr;gap:16px}.list-actions-col{border-top:1px dashed var(--line-subtle);flex-direction:row;grid-column:span 2;justify-content:space-between;padding-top:10px}.modal-content-grid{grid-template-columns:1fr}}@media (width<=640px){.content-container{width:calc(100% - 24px);margin-top:16px}.masthead-title{font-size:21px}.shelf-grid-layout{grid-template-columns:repeat(2,1fr);gap:10px}.book-list-row-item{grid-template-columns:80px 1fr;padding:12px}.random-showcase-layout{grid-template-columns:1fr}.random-left-cover,.nav-search-bar{display:none}}