.rb-course{--background:var(--rb-paper);--foreground:var(--rb-ink);--card:var(--rb-card);--card-foreground:var(--rb-ink);--popover:var(--rb-card);--popover-foreground:var(--rb-ink);--muted-foreground:var(--rb-muted);--border:var(--rb-line);--input:var(--rb-line);--primary:var(--rb-ink);--primary-foreground:var(--rb-paper)}.rb-course .ce-banner{color:#ffe2a8;overflow-wrap:anywhere;background:#3a2a06;border-bottom:1px solid #a8741a;margin:0;padding:.75rem 1rem;font-size:.9rem}.rb-course .ce-toggle{align-items:center;gap:.4rem;min-height:44px;margin-left:.75rem;display:inline-flex}.rb-course .ce-btn{min-height:44px;color:inherit;font:inherit;cursor:pointer;background:0 0;border:1px solid;border-radius:6px;align-items:center;gap:.35rem;padding:0 .9rem;display:inline-flex}.rb-course .ce-btn:focus-visible,.rb-course .rb-chapter-link:focus-visible,.rb-course summary:focus-visible{outline-offset:2px;outline:3px solid #ff9a3c}.rb-course .ce-btn[disabled]{opacity:.4;cursor:default}.rb-course .ce-btn[aria-selected=true]{color:#1a1a1a;background:#ff9a3c;border-color:#ff9a3c}.rb-course .ce-toolbar{flex-wrap:wrap;align-items:center;gap:.75rem;margin-bottom:1rem;display:flex}.rb-course .ce-tabs{flex-wrap:wrap;gap:.5rem;margin:1rem 0 1.5rem;display:flex}.rb-course .ce-part>summary{cursor:pointer;list-style:revert}.rb-course .ce-card{color:var(--rb-ink);min-width:0;margin:1.5rem 0}.rb-course .ce-card :is(pre,code){white-space:pre-wrap;overflow-wrap:anywhere}.rb-course .ce-figure{margin:1rem 0}.rb-course .ce-figure img,.rb-course .rb-resource img{max-width:100%;height:auto}.rb-course .ce-audio-note,.rb-course .ce-muted{opacity:.7;font-size:.8rem}.rb-course .ce-tech{opacity:.75;margin-top:.4rem;font-size:.75rem}.rb-course .ce-return a{text-decoration:underline}.rb-course .ce-assessor{border:1px dashed #a8741a;border-radius:6px;margin-top:.75rem;padding:.5rem .75rem}.rb-course .ce-assessor summary{cursor:pointer;align-items:center;min-height:44px;display:flex}.rb-course .ce-pre{white-space:pre-wrap;overflow-wrap:anywhere}.rb-course .ce-pager{flex-wrap:wrap;justify-content:space-between;gap:.75rem;margin:2rem 0;display:flex}.rb-course .ce-sources a{overflow-wrap:anywhere;text-decoration:underline}.rb-course .rb-main{overflow-wrap:anywhere;min-width:0}.rb-course.ce-collapsed .rb-layout{grid-template-columns:minmax(0,1fr)}@media (width>=721px){.rb-course .rb-mobile-bar{display:none}}@media (width<=720px){.rb-course .ce-collapse{display:none}}.rb-course .ce-master-link{overflow-wrap:anywhere;margin-top:.5rem;font-size:.9rem;text-decoration:underline;display:inline-block}.rb-course .ce-recall{border-left:3px solid var(--rb-accent,currentColor);opacity:.95;padding-left:.75rem}.rb-course .ce-recall h3{margin:.25rem 0;font-size:1.05rem}.rb-course .ce-figure-credit{opacity:.8;margin:.25rem 0 0;font-size:.8rem}.rb-course .ce-figure-more summary{cursor:pointer;font-size:.85rem}.rb-course .ce-figure-more p{font-size:.85rem}.rb-course .ce-book-label{align-items:center;gap:.75rem;display:flex}.rb-course .ce-cover{object-fit:cover;border-radius:3px;flex:none;width:48px;height:64px}.rb-course .ce-notice{border:1px solid;border-radius:6px;margin:.5rem 0;padding:.5rem .75rem;font-size:.9rem}.rb-course .ce-active{outline:2px solid var(--rb-accent,currentColor);outline-offset:4px}.rb-course .ce-inline-btn{color:inherit;cursor:pointer;background:0 0;border:0;min-height:24px;padding:0;text-decoration:underline}.rb-course .ce-list{margin:.25rem 0 .5rem 1.25rem;list-style:outside}.rb-course .ce-dl dt{font-weight:600}.rb-course .ce-dl dd{margin:0 0 .5rem}.rb-course .ce-tabs button[aria-pressed=true]{font-weight:700;text-decoration:underline}.ce-practice .ce-btn{color:inherit;background:0 0;border:1px solid}.ce-practice .ce-btn:disabled{opacity:.5}.rb-course .ce-listen{flex-direction:column;align-items:flex-start;gap:.35rem;margin-top:.9rem;display:flex}.rb-course .ce-listen-btn{align-items:center;gap:.45rem;display:inline-flex}.rb-course .ce-listen-note{opacity:.75;max-width:60ch;margin:0;font-size:.8rem}.rb-course .ce-audio-spacer{height:150px}.rb-audio-native-label .rb-audio-native-source{letter-spacing:.04em;margin-top:2px}@media (width<=720px){.rb-course .rb-audio-native{flex-wrap:wrap;gap:10px;padding:10px 16px}.rb-course .rb-audio-native-label strong{max-width:calc(100vw - 80px)}.rb-course .rb-audio-native-frame{flex-basis:100%;max-width:100%}}.rb-course .ce-nav-switch{flex-wrap:wrap;gap:.5rem;margin:.5rem 0 1rem;display:flex}.rb-course .ce-nav-switch button[aria-pressed=true]{font-weight:700;text-decoration:underline}.rb-course .ce-task-list{margin:0 0 1rem;padding:0;list-style:none}.rb-course .ce-task-list button:disabled{opacity:.6;cursor:not-allowed}.rb-course .ce-tabs-inner,.rb-course .ce-jump-group{flex-wrap:wrap;align-items:center;gap:.5rem;display:flex}.rb-course .ce-jump-label{font-weight:700}.rb-course .ce-jump{white-space:normal;text-align:left;max-width:100%}.rb-course .rb-mobile-bar{gap:.5rem}