.nt-back-top{position:fixed;right:max(20px,env(safe-area-inset-right));bottom:calc(22px + env(safe-area-inset-bottom));z-index:90;width:44px;height:44px;padding:0;display:grid;place-items:center;border:1px solid #6186ac;border-radius:50%;background:#153754;color:#e9f5ff;box-shadow:0 5px 20px #05203c30;cursor:pointer}
.nt-back-top[hidden]{display:none}.nt-back-top:hover{background:#245b8a;color:white}.nt-back-top:focus-visible{outline:3px solid #70b3f0;outline-offset:4px}
.nt-reading-progress{display:none}
.nt-legacy-contents{max-width:1100px;margin:20px auto 32px;padding:18px 24px;border:1px solid #b9d0da;border-radius:14px;background:#eaf1f5;color:#183f61;font:14px/1.7 'Open Sans',sans-serif}
.nt-legacy-contents summary{cursor:pointer;font-weight:700;color:#183f61;background:transparent}
.nt-legacy-contents nav{padding-top:18px}.nt-legacy-contents ol{list-style:none;padding:0;margin:0;display:grid;gap:10px}.nt-legacy-contents a{color:#245880;text-decoration:underline;text-underline-offset:3px}.nt-legacy-contents .toc-h3{padding-left:20px}
.article-source h1,.article-source h2,.article-source h3{scroll-margin-top:110px}
@media(max-width:700px){.nt-reading-progress{position:fixed;display:block;inset:auto 0 0;z-index:95;height:calc(18px + env(safe-area-inset-bottom));background:#dfebf4;pointer-events:none;border-top:1px solid #afc9de}.nt-reading-fill{position:absolute;inset:0;background:#286ec7;transform:scaleX(var(--reading-progress,0));transform-origin:left center}.nt-reading-percent{position:absolute;right:8px;top:1px;padding:0 4px;border-radius:5px;background:#f4f8ff;color:#1d4878;font:700 10px/14px Arial,sans-serif;font-variant-numeric:tabular-nums}.nt-back-top{right:14px;bottom:calc(34px + env(safe-area-inset-bottom))}body:has(.nt-reading-progress){padding-bottom:calc(18px + env(safe-area-inset-bottom))}.nt-legacy-contents{margin:16px 18px 28px;padding:18px}}
@media print{.nt-reading-progress,.nt-back-top{display:none!important}}

.nt-home .nt-legacy-contents>summary:hover,.nt-home .nt-legacy-contents>summary:focus-visible{color:#155348;background:#dceee7}