.reading-nav{scrollbar-width:thin;max-height:calc(100dvh - 84px);overflow-y:auto}.reading-nav-label{color:var(--muted);margin-bottom:30px;font-size:12px}.reading-chapters{margin:0;padding:0;list-style:none}.reading-chapters li+li{margin-top:5px}.reading-chapters a{min-height:44px;color:var(--muted);align-items:center;gap:13px;font-size:14px;transition:color .2s;display:flex}.chapter-number{font-variant-numeric:tabular-nums;font-size:11px}.chapter-dot{background:var(--accent);opacity:0;border-radius:50%;flex-shrink:0;width:6px;height:6px;margin-left:auto}.reading-chapters a[aria-current=location]{color:var(--ink)}.reading-chapters a[aria-current=location] .chapter-dot{opacity:1}.reading-chapters a:hover{color:var(--ink)}.reading-progress{background:var(--rule);height:2px;margin-top:28px;overflow:hidden}.reading-progress>span{background:var(--ink);height:100%;transition:width .12s linear;display:block}.reading-back{color:var(--muted);align-items:center;gap:16px;margin-top:23px;font-size:11px;display:inline-flex}.reading-nav-toggle{display:none}@media (max-width:1100px){.reading-chapters a{gap:10px;font-size:13px}}@media (max-width:700px){.reading-nav{background:var(--paper);max-height:none;position:relative;overflow:visible}.reading-nav-label,.reading-back{display:none}.reading-nav-toggle{text-align:left;background:var(--paper);justify-content:space-between;align-items:center;gap:12px;width:100%;min-height:58px;display:flex}.reading-current{align-items:center;gap:12px;font-size:13px;display:flex}.chapter-count{color:var(--muted);font-variant-numeric:tabular-nums;flex-shrink:0;font-size:10px}.reading-toggle-label{color:var(--muted);flex-shrink:0;gap:9px;font-size:11px;display:flex}.reading-progress{height:2px;margin:0}.reading-chapters{background:var(--paper);border:1px solid var(--rule);width:100%;max-height:70dvh;padding:10px 18px;display:none;position:absolute;top:60px;left:0;overflow-y:auto}.reading-chapters.is-expanded{display:block}.reading-chapters a{min-height:44px;font-size:14px}}