.nav-part{margin:8px 0 14px}.sidebar .nav-part>summary{font-size:13px;color:var(--muted);line-height:1.7}.nav-part>ol{margin-top:8px}.nav-title{min-width:0;overflow-wrap:anywhere}.nav-status{display:block;font-size:11px;color:var(--muted);font-weight:400}.sidebar{min-height:0;height:calc(100dvh - 110px);max-height:calc(100dvh - 110px);overflow-y:auto;overscroll-behavior:contain}.placeholder-catalog{margin-top:48px;border-top:1px solid var(--line);padding-top:20px}.placeholder-catalog summary{cursor:pointer;padding:8px 0}.placeholder-catalog ol{list-style:none;padding:0}.placeholder-catalog a{display:flex;gap:14px;padding:8px 0}.placeholder-catalog .nav-number{color:var(--accent);min-width:24px}.placeholder-catalog .current{color:var(--accent)}@media(max-width:880px){.sidebar{height:100dvh;max-height:100dvh;box-sizing:border-box;padding-bottom:32px}}