.book-toc{margin:2em 0 3em 0;padding:1.5em;background:rgba(0,0,0,.03);border-radius:8px;border-left:4px solid var(--orange-accent)}.theme-dark .book-toc{background:rgba(255,255,255,.05)}.book-toc h3{margin:0 0 1em 0;font-size:calc(var(--reader-font-size)*1.2)!important;font-weight:600;color:var(--orange-accent)}.toc-list{margin:0;padding-left:1.5em;list-style:decimal;counter-reset:toc-counter}.toc-list li{margin:.5em 0;padding-left:.5em;line-height:1.6!important}.toc-link{color:inherit;text-decoration:none;border-bottom:1px dotted currentColor;display:inline-block}.toc-menu{position:fixed;top:4rem;left:50%;width:640px;max-width:640px;max-height:70vh;background:var(--bg-color);color:var(--text-color);font-family:inherit;font-size:var(--reader-font-size, 19px);line-height:var(--reader-line-height, 1.6);letter-spacing:var(--reader-letter-spacing, 0);word-spacing:var(--reader-word-spacing, 0);text-shadow:var(--reader-text-shadow, none);border:1px solid var(--controls-border);border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,.15);overflow:hidden;opacity:0;visibility:hidden;transform:translateX(-50%) translateY(-10px);z-index:900}.toc-menu.open{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}.toc-header{padding:1rem 1.25rem;border-bottom:1px solid var(--controls-border)}.toc-header h3{margin:0;font-size:calc(var(--reader-font-size, 19px)*1.2);font-weight:600;color:inherit}.toc-menu .toc-list{list-style:none;margin:0;padding:.5rem 0;overflow-y:auto;max-height:calc(70vh - 4rem)}.toc-menu .toc-list li{margin:0;padding:0;opacity:0;transform:translateY(10px);transition-delay:0s}.toc-menu.open .toc-list li{opacity:1;transform:translateY(0)}.toc-menu .toc-list a{display:block;padding:.75rem 1.25rem;color:inherit;text-decoration:none;font-size:inherit;line-height:inherit;letter-spacing:inherit;word-spacing:inherit;border-left:3px solid transparent}.toc-overlay{position:fixed;inset:0;background:0 0;opacity:0;visibility:hidden;z-index:850;pointer-events:none}.toc-overlay.active{opacity:1;visibility:visible;pointer-events:auto}@media (max-width:768px){.toc-menu{width:calc(100% - 40px);max-width:640px;max-height:60vh}}