:root{--bg:#f6f7fb;--surface:#fff;--text:#1f2937;--muted:#6b7280;--border:#d1d5db;--accent:#0f766e;--success-bg:#ecfdf3;--success-text:#065f46;--info-bg:#eff6ff;--info-text:#1e3a8a;--error-bg:#fef2f2;--error-text:#991b1b}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:Segoe UI,PingFang SC,sans-serif}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:960px;margin:0 auto;padding:24px 16px 40px}.page-header{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.page-title-block h1{margin:0 0 6px}.page-title-block p{margin:0}.card{background:var(--surface);border:1px solid var(--border);border-radius:10px;margin-bottom:12px;padding:16px}.section-title{margin:0 0 10px}.book-row h3{margin:0 0 6px}.muted{color:var(--muted);margin:0}.stack{gap:12px;display:grid}.meta-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:8px 16px;display:grid}.meta-item{margin:0}.meta-item strong{color:var(--muted);font-weight:600}.form-grid{gap:12px;display:grid}.start-book-form textarea{min-height:160px}label{margin-bottom:4px;font-size:14px;display:block}input,textarea{border:1px solid var(--border);width:100%;font:inherit;border-radius:8px;padding:8px 10px}textarea{resize:vertical;min-height:90px}button{background:var(--accent);color:#fff;font:inherit;cursor:pointer;border:none;border-radius:8px;padding:10px 16px}button:disabled{opacity:.65;cursor:not-allowed}.placeholder{border:1px dashed var(--border);color:var(--muted);border-radius:8px;padding:12px}pre{border:1px solid var(--border);white-space:pre-wrap;word-break:break-word;background:#f9fafb;border-radius:8px;margin:0;padding:10px}.error-text{color:var(--error-text);margin:0}.notice{border-radius:8px;margin:0;padding:10px 12px}.notice-info{background:var(--info-bg);color:var(--info-text)}.notice-success{background:var(--success-bg);color:var(--success-text)}.notice-error{background:var(--error-bg);color:var(--error-text)}.debug-panel{background:#fafafa;border-style:dashed;border-color:#cbd5e1}.debug-panel summary{cursor:pointer;color:var(--muted);font-weight:600}.operation-grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px;display:grid}.workspace-header{justify-content:space-between;align-items:center;gap:12px;display:flex}.badge{border-radius:999px;align-items:center;padding:4px 10px;font-size:12px;font-weight:600;display:inline-flex}.badge-success{background:var(--success-bg);color:var(--success-text)}.badge-muted{color:#475569;background:#eef2f7}.draft-block{min-height:220px}.draft-content{gap:.9em;font-size:16px;line-height:1.9;display:grid}.draft-paragraph{text-indent:2em;margin:0}.empty-state{border:1px dashed var(--border);border-radius:10px;padding:14px}.empty-state p{margin:0}.primary-action{width:100%;font-weight:700}.entity-block{border-top:1px solid #f1f5f9;padding-top:10px}.entity-block:first-of-type{border-top:none;padding-top:0}.launch-primary-cta{text-align:center;background:var(--accent);color:#fff;border-radius:10px;padding:12px 16px;font-weight:600;display:inline-block}.launch-primary-cta:hover{text-decoration:none}.launch-primary-button{width:100%}.launch-secondary-actions{flex-wrap:wrap;gap:8px;display:flex}.secondary-button{color:#0f172a;background:#fff;border:1px solid #cbd5e1;border-radius:10px;align-self:flex-start;padding:10px 14px;font-weight:600}.danger-button{color:#fff;background:#b91c1c;align-self:flex-start;font-weight:700}.chapter-list-row{border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:10px;justify-content:space-between;align-items:center;gap:16px;padding:14px 16px;text-decoration:none;transition:border-color .15s,box-shadow .15s,transform .15s;display:flex}.chapter-list-row:hover{border-color:#94a3b8;text-decoration:none;transform:translateY(-1px);box-shadow:0 8px 20px #0f172a0f}.chapter-list-title{min-width:0;color:var(--text)}.chapter-list-status{color:var(--muted);flex-shrink:0;font-size:14px;font-weight:600}