Change logic on rendering or not ToC

assets/_main.scss

@@ -399,7 +399,7 @@ body[dir="rtl"] .book-menu {
 
     .book-menu-overlay {
       display: block;
-      position: absolute;
+      position: fixed;
       top: 0;
       bottom: 0;
       left: 0;

layouts/_partials/docs/toc-show.html

@@ -1,4 +1,5 @@
-{{ return default
+{{- return or
+  (and (eq .Type "posts") (eq .Kind "section"))
   (not (eq .TableOfContents "<nav id=\"TableOfContents\"></nav>"))
   (default .Site.Params.BookToC .Params.BookToC)
-}}
+-}}

layouts/baseof.html

@@ -52,7 +52,7 @@
 {{ define "header" }}
   {{ partial "docs/header" . }}
 
-  {{ if default true (default .Site.Params.BookToC .Params.BookToC) }}
+  {{ if partial "docs/toc-show" . }}
   <aside class="hidden">
     {{ template "toc" . }}
   </aside>