.kb-book{max-width:1280px;display:grid;gap:24px;color:var(--color-text)}
.kb-book *{box-sizing:border-box;min-width:0}.kb-book-head h3{font-size:28px;margin:0 0 10px;line-height:1.2}
.kb-book-head p{max-width:820px;color:var(--color-text-muted);line-height:1.65;margin:0}
.kb-book-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:24px;align-items:start}
.kb-book-nav{display:grid;gap:6px;position:sticky;top:20px}.kb-book button{min-height:44px;border:1px solid var(--color-border);border-radius:10px;padding:10px 14px;background:var(--color-surface-offset);color:var(--color-text);cursor:pointer}
.kb-book-nav button{text-align:left;display:flex;justify-content:space-between;gap:12px}.kb-book-nav button[aria-pressed=true]{border-color:var(--color-primary);color:var(--color-primary);background:var(--color-surface)}
.kb-book-nav small{color:var(--color-text-muted);white-space:nowrap;font-size:11px}.kb-book-editor{border:1px solid var(--color-border);border-radius:18px;padding:28px;background:var(--color-surface);display:grid;gap:18px}
.kb-book-editor h4{font-size:24px;margin:0}.kb-book-editor label{display:grid;gap:8px;font-size:13px;color:var(--color-text-muted)}
.kb-book :is(textarea,input,select){width:100%;border:1px solid var(--color-border);background:var(--color-surface-offset);color:var(--color-text);border-radius:10px;padding:12px;min-height:44px;font:inherit}
.kb-book textarea{min-height:120px;resize:vertical;line-height:1.7}.kb-book [data-book-field=content]{min-height:400px;font-size:15px}
.kb-book-actions{display:flex;flex-wrap:wrap;gap:10px}.kb-book [data-book-op=save]{background:var(--color-primary);color:var(--color-bg);font-weight:700}
.kb-book-status{font-size:12px;color:var(--color-text-muted)}.kb-book-status[data-state=reviewed]{color:var(--color-success)}
.kb-book-warning{border-left:3px solid var(--color-primary);padding:12px 16px;background:var(--color-surface-offset);font-size:13px;line-height:1.65;color:var(--color-text-muted)}
.kb-book .kb-book-confirm{display:flex;align-items:center;gap:10px}.kb-book-confirm input{width:18px;min-height:18px;flex:none}
.kb-book summary{cursor:pointer;font-weight:600}.kb-book details{border-top:1px solid var(--color-border);padding-top:18px}.kb-book details>div{display:grid;gap:12px;margin-top:16px}
.kb-book pre{white-space:pre-wrap;overflow-wrap:anywhere;max-height:320px;overflow:auto;padding:16px;border:1px solid var(--color-border);line-height:1.6;font-family:inherit}
.kb-book button:disabled{opacity:.55;cursor:default}.kb-book :is(button,textarea,input,select,summary):focus-visible{outline:2px solid var(--color-primary);outline-offset:3px}
@media(max-width:800px){.kb-book-layout{grid-template-columns:1fr;gap:16px}.kb-book-nav{position:static;grid-template-columns:1fr 1fr}.kb-book-nav button{flex-direction:column;gap:4px}.kb-book-editor{padding:18px}.kb-book-editor h4{font-size:22px}.kb-book [data-book-field=content]{min-height:320px}}