.qza-layout-wrap{z-index:1;max-width:1260px;margin:0 auto;padding:32px clamp(16px,3vw,32px) 80px;position:relative}.qza-grid{grid-template-columns:1fr;align-items:flex-start;gap:28px;display:grid}@media (min-width:1024px){.qza-grid{grid-template-columns:290px minmax(0,1fr);gap:36px}}.qza-sidebar{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);flex-direction:column;gap:14px;padding:16px;display:flex;box-shadow:0 2px 10px #00000008}@media (max-width:1023px){.qza-sidebar .qza-sidebar-nav{display:none}}@media (min-width:1024px){.qza-sidebar .qza-stack-select{display:none}.qza-sidebar{height:calc(100vh - 96px);max-height:calc(100vh - 96px);position:sticky;top:76px;overflow:hidden}}.qza-sidebar-top{flex-direction:column;flex-shrink:0;gap:12px;display:flex}.qza-sidebar-top .fc-pill{gap:2px;padding:5px 6px;font-size:.72rem}.qza-sidebar-section{border-top:1px solid var(--border);flex-direction:column;flex:1;min-height:0;padding-top:12px;display:flex}.qza-sidebar-nav{scrollbar-width:thin;scrollbar-color:var(--border-strong) transparent;flex-direction:column;flex:1;gap:3px;min-height:0;padding-right:4px;display:flex;overflow-y:auto}.qza-sidebar-nav::-webkit-scrollbar{width:5px}.qza-sidebar-nav::-webkit-scrollbar-track{background:0 0}.qza-sidebar-nav::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:9999px}.qza-sidebar-nav::-webkit-scrollbar-thumb:hover{background:var(--ink-muted)}.qza-nav-item{border-radius:var(--radius);width:100%;color:var(--ink-secondary);cursor:pointer;text-align:left;background:0 0;border:1px solid #0000;justify-content:space-between;align-items:center;padding:8px 12px;font-size:.86rem;font-weight:500;transition:all .12s;display:flex}.qza-nav-item:hover{background:var(--surface-raised);color:var(--ink)}.qza-nav-item.active{background:color-mix(in srgb, var(--accent) 12%, var(--surface));border-color:color-mix(in srgb, var(--accent) 30%, transparent);color:var(--accent);font-weight:600}.qza-nav-count{font-size:.75rem;font-family:var(--font-mono);color:var(--ink-muted)}.qza-nav-item.active .qza-nav-count{color:var(--accent);font-weight:700}.qza-content{flex-direction:column;gap:24px;min-width:0;display:flex}.qza-section-banner{border-bottom:1px solid var(--border);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding-bottom:16px;display:flex}.qza-card{border-radius:var(--radius-lg);border:1px solid var(--border);background:var(--surface);padding:22px;transition:border-color .15s,box-shadow .15s;box-shadow:0 1px 4px #00000008}.qza-card:hover{border-color:var(--border-strong);box-shadow:0 4px 16px #0000000d}.qza-opt-list{flex-direction:column;gap:8px;margin-top:16px;padding:0;list-style:none;display:flex}.qza-opt-item{border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);color:var(--ink-secondary);align-items:flex-start;gap:12px;padding:11px 14px;font-size:.92rem;line-height:1.5;transition:all .12s;display:flex}.qza-opt-item.correct{border-color:color-mix(in srgb, var(--green-ink) 35%, var(--border));background:color-mix(in srgb, var(--green-bg) 60%, var(--surface));color:var(--ink);font-weight:500}.qza-opt-letter{width:24px;height:24px;font-family:var(--font-mono);background:var(--surface-raised);color:var(--ink-secondary);border-radius:50%;flex-shrink:0;place-items:center;margin-top:1px;font-size:.75rem;font-weight:700;display:grid}.qza-opt-item.correct .qza-opt-letter{background:var(--green-ink);color:#fff}.qza-rationale{border-radius:var(--radius);border:1px solid color-mix(in srgb, var(--accent) 22%, var(--border));background:color-mix(in srgb, var(--surface-raised) 70%, var(--surface));margin-top:18px;padding:16px 18px}.qza-rationale-title{color:var(--ink);align-items:center;gap:6px;margin-bottom:8px;font-size:.88rem;font-weight:700;display:flex}.qza-rationale-body{color:var(--ink-secondary);font-size:.9rem;line-height:1.65}.qza-pagination{border-radius:var(--radius-lg);border:1px solid var(--border);background:var(--surface);flex-direction:column;justify-content:space-between;align-items:center;gap:16px;margin-top:36px;padding:16px 20px;display:flex}@media (min-width:640px){.qza-pagination{flex-direction:row}}.qza-page-info{color:var(--ink-muted);font-size:.84rem}.qza-page-controls{align-items:center;gap:4px;display:flex}.qza-page-btn{border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);min-width:34px;height:34px;color:var(--ink-secondary);cursor:pointer;justify-content:center;align-items:center;padding:0 10px;font-size:.85rem;font-weight:600;transition:all .14s;display:inline-flex}.qza-page-btn:hover:not(:disabled){background:var(--surface-raised);border-color:var(--border-strong);color:var(--ink)}.qza-page-btn.active{background:var(--accent-solid);border-color:var(--accent-solid);color:#fff;box-shadow:0 2px 8px color-mix(in srgb, var(--accent) 30%, transparent);font-weight:700}.qza-page-btn:disabled{opacity:.4;cursor:not-allowed}.qza-page-ellipsis{width:28px;height:34px;color:var(--ink-muted);justify-content:center;align-items:center;font-size:.85rem;display:inline-flex}