.reader-contents__group { margin:0; }
.reader-contents__group > summary { display:block; cursor:pointer; list-style:none; }
.reader-contents__group > summary::-webkit-details-marker { display:none; }
.reader-contents__group > summary::before { content:"›"; display:inline-block; width:10px; color:#5b7467; font-weight:800; transition:transform .15s ease; }
.reader-contents__group[open] > summary::before { transform:rotate(90deg); }
.reader-contents__children { display:grid; gap:2px; margin-left:10px; }
.reader-contents .reader-contents__group-label { display:inline-flex; align-items:baseline; gap:5px; margin:0; padding:7px; color:#2c5141; font:700 .72rem/1.35 system-ui,-apple-system,sans-serif; }
.reader-contents .reader-contents__group-label strong { min-width:auto; }
.reader-contents .reader-contents__group-label small { color:#718178; font-weight:600; }
.reader-contents__group.is-search-path > summary { border-radius:5px; background:#e7f4ea; }
.reader-contents-controls { display:flex; gap:7px; margin:8px 0 5px; }
.reader-contents-controls button { border:0; padding:0; background:transparent; color:#286147; font:700 .68rem/1.3 system-ui,-apple-system,sans-serif; cursor:pointer; }
.reader-contents-controls button:hover,.reader-contents-controls button:focus-visible { color:#124b34; text-decoration:underline; outline:0; }