.nxexam{color:#1c2830;background:#fff;flex-direction:column;min-height:100vh;font-family:Segoe UI,system-ui,sans-serif;display:flex}.nxexam [hidden]{display:none!important}.nxbar{color:#fff;background:#1578c8;flex-wrap:wrap;align-items:center;gap:1.25rem;padding:.55rem 1rem;display:flex}.nxbrand{letter-spacing:.01em;color:inherit;margin:0;font-family:inherit;font-size:1rem;font-weight:700}.nxjump{align-items:center;gap:.4rem;font-size:.92rem;display:flex}.nxjump select{color:#1c2830;border:0;border-radius:4px;padding:.2rem .35rem}.nxswitch{color:#fff;cursor:pointer;font:inherit;background:0 0;border:0;align-items:center;gap:.45rem;margin-left:auto;padding:.15rem .2rem;font-size:.92rem;display:flex}.nxswitch b{text-align:left;min-width:1.6rem;font-size:.85rem}.nxtrack{background:#ffffff59;border-radius:999px;width:2.2rem;height:1.2rem;transition:background .15s;position:relative}.nxtrack:after{content:"";background:#fff;border-radius:50%;width:.9rem;height:.9rem;transition:transform .15s;position:absolute;top:.15rem;left:.15rem}.nxswitch[aria-checked=true] .nxtrack{background:#0b6b3a}.nxswitch[aria-checked=true] .nxtrack:after{transform:translate(1rem)}.nxswitch:focus-visible{outline-offset:2px;border-radius:4px;outline:2px solid #fff}.nxtool{color:#fff;cursor:pointer;font:inherit;background:0 0;border:1px solid #0000;border-radius:4px;padding:.15rem .45rem}.nxclock{font-variant-numeric:tabular-nums;align-items:center;gap:.35rem;display:flex}.nxclock span,.nxpos{opacity:.9;font-size:.78rem}.nxclock b{font-size:1.05rem}.nxpos{text-align:right;min-width:7.5rem}.nxsub{color:#fff;background:#3d97db;flex-wrap:wrap;justify-content:space-between;gap:.25rem 1rem;padding:.35rem 1rem;font-weight:650;display:flex}.nxhint{opacity:.95;font-size:.85rem;font-weight:400}.nxsplit{grid-template-columns:1fr 1fr;min-height:calc(100vh - 7.5rem);display:grid}.nxq,.nxside{padding:1.1rem 1.25rem 2rem}.nxq{border-right:1px solid #d5dde3}.nxstem{max-width:40rem;margin:0 0 .8rem;font-size:1.02rem;line-height:1.45}.nxinstr{margin:-.2rem 0 .8rem;font-weight:700}.nxoptwrap{border-bottom:1px solid #e4eaee}.nxopt,.nxsent{text-align:left;width:100%;font:inherit;color:inherit;cursor:pointer;background:#fff;border:0;align-items:flex-start;gap:.65rem;padding:.55rem .2rem;display:flex}.nxnote{background:#f4f8fb;border-left:4px solid #1578c8;margin:0 .2rem .55rem 1.65rem;padding:.35rem .6rem;font-size:.92rem;line-height:1.4}.nxnote .is-right{color:#0b6b3a;font-weight:700}.nxnote .is-wrong{color:#8a3b2a;font-weight:700}.nxmatrix .nxnote{margin:.15rem 0 .35rem}.nxblanks{flex-direction:column;gap:.45rem;margin:0 0 .8rem;padding:0;list-style:none;display:flex}.nxblank,.nxchip{font:inherit;text-align:left;cursor:pointer;background:#f7fafc;border:1px dashed #8aa;border-radius:6px;padding:.55rem .7rem}.nxblank.is-key{background:#eef6fc;border-style:solid;border-color:#1578c8}.nxblank.is-miss{border-style:solid;border-color:#8a3b2a}.nxbank{flex-direction:column;gap:.4rem;display:flex}.nxchip.is-armed{background:#e7f2fb;border-style:solid;border-color:#1578c8}.nxlabel{color:#60707c;text-transform:uppercase;letter-spacing:.04em;margin:.8rem 0 .35rem;font-size:.78rem}.nxrow{cursor:pointer}.nxrow.is-on td{background:#fff3a8}.nxrow.is-key td{box-shadow:inset 4px 0 #1578c8}.nxrow.is-miss td{color:#8aa}.nxsent.is-on{background:#fff3a8}.nxdot,.nxbox{border:2px solid #60707c;flex:none;width:1rem;height:1rem;margin-top:.15rem}.nxdot{border-radius:50%}.nxbox{border-radius:2px}.nxopt.is-on .nxdot,.nxopt.is-on .nxbox{background:#1578c8;box-shadow:inset 0 0 0 2px #fff}.nxopt.is-key{font-weight:650;box-shadow:inset 4px 0 #1578c8}.nxsent.is-key{outline:2px solid #1578c8}.nxopt.is-miss,.nxsent.is-miss{color:#8aa}.nxactions{gap:.6rem;margin-top:1.2rem;display:flex}.nxsubmit,.nxnext,.nxback,.nxhome{font:inherit;cursor:pointer;border-radius:3px;padding:.45rem .9rem}.nxsubmit{color:#60707c;background:#d9e1e6;border:1px solid #c5d0d6}.nxsubmit:not(:disabled){color:#fff;background:#1578c8;border-color:#1578c8}.nxnext,.nxhome{color:#1578c8;background:#fff;border:1px solid #1578c8;text-decoration:none}.nxback{color:#405060;background:#fff;border:1px solid #c5d0d6}.nxsubmit:disabled,.nxnext:disabled{cursor:default}.nxsplit.is-solo{grid-template-columns:1fr}.nxsplit.is-solo .nxq{border-right:0}.nxsplit.is-solo .nxside{display:none}.nxcharttitle{margin-bottom:.4rem;font-weight:700}.nxtabs{flex-wrap:wrap;gap:.25rem;margin-bottom:.6rem;display:flex}.nxtabs button{font:inherit;cursor:pointer;background:#f7fafc;border:1px solid #c5d0d6;padding:.3rem .55rem}.nxtabs button.is-on{color:#fff;background:#1578c8;border-color:#1578c8}.nxchart{white-space:pre-wrap;font-size:.95rem;line-height:1.45}.nxmatrix{border-collapse:collapse;width:100%;max-width:40rem}.nxmatrix th,.nxmatrix td{text-align:left;border-bottom:1px solid #e4eaee;padding:.45rem .5rem;font-size:.95rem}.nxcloze select{font:inherit;margin:0 .25rem;padding:.2rem}.nxbow{grid-template-columns:1fr 1fr 1fr;gap:.75rem;display:grid}.nxbowcol h2{color:#1578c8;margin:0 0 .4rem;font-size:.82rem}.nxcalc{z-index:5;background:#fff;border:1px solid #c5d0d6;width:220px;padding:.6rem;position:fixed;top:3.2rem;right:1rem;box-shadow:0 8px 24px #0000001f}.nxcalc-screen{color:#fff;text-align:right;font-variant-numeric:tabular-nums;background:#10222e;margin-bottom:.4rem;padding:.45rem .5rem}.nxcalc-keys{grid-template-columns:repeat(4,1fr);gap:.25rem;display:grid}.nxcalc-keys button{font:inherit;cursor:pointer;padding:.45rem 0}.nxfine{color:#60707c;margin:0;padding:.4rem 1rem .8rem;font-size:.78rem}.nxsoon{max-width:36rem;padding:2rem 1.25rem}.nxsoon h1{margin:0 0 .6rem;font-size:1.6rem}.nxsoon a{color:#1578c8}.nxend{max-width:40rem;padding:2rem 1.25rem}.nxendk{color:#1578c8;margin-bottom:.3rem;font-weight:700}.nxendscore{letter-spacing:-.03em;margin:.2rem 0 .6rem;font-size:3rem;font-weight:750}@media (width<=800px){.nxsplit{grid-template-columns:1fr}.nxq{border-bottom:1px solid #d5dde3;border-right:0}.nxbow{grid-template-columns:1fr}.nxswitch{margin-left:0}}.xq{margin-top:3rem}.xq-toc{flex-wrap:wrap;gap:.45rem;margin:1rem 0 .5rem;display:flex}.xq-toc a{border:1px solid var(--border);color:var(--ink);background:var(--paper);border-radius:999px;padding:.3rem .75rem;font-size:.88rem;text-decoration:none}.xq-toc a:hover{border-color:var(--brand)}.xq-toc span{color:var(--faded);margin-left:.2rem}.xq-sub,.xq-sub h2{scroll-margin-top:1rem}.xq-list{max-width:46rem;margin:.5rem 0 0 1.4rem;padding:0}.xq-item{border-bottom:1px solid var(--border);padding:1.1rem 0 1.2rem .3rem}.xq-item::marker{color:var(--brand);font-weight:700;font-family:var(--fontDisplay)}.xq-passage{background:var(--brandSoft);border-radius:8px;margin-bottom:.7rem;padding:.8rem 1rem .1rem}.xq-passage p{margin-bottom:.7rem}.xq-stem{margin-bottom:.6rem;font-weight:600}.xq-stem u{text-underline-offset:3px}.xq-fig{background:#fff;border-radius:8px;width:fit-content;max-width:100%;margin:.3rem 0 .8rem;padding:.5rem}.xq-fig svg{width:440px;max-width:100%;height:auto;display:block}.xq-fig svg[width]{width:auto;max-width:100%}.xq-opts{margin:0 0 .6rem;padding:0;list-style:none}.xq-opts li{align-items:baseline;gap:.6rem;padding:.18rem 0;display:flex}.xq-l{color:var(--faded);min-width:1.1rem;font-weight:700}.xq-opts-fig{grid-template-columns:repeat(4,minmax(0,1fr));gap:.5rem;max-width:44rem;display:grid}.xq-opts-fig li{border:1px solid var(--border);background:#fff;border-radius:8px;flex-direction:column;align-items:center;padding:.35rem}.xq-ofig svg{width:auto;max-width:100%;height:auto;display:block}.xq-ans summary{cursor:pointer;color:var(--brand);font-size:.93rem;font-weight:600}.xq-ans p{background:var(--brandSoft);border-radius:8px;margin:.5rem 0 0;padding:.6rem .8rem}.xq-rats{max-width:none;margin:.5rem 0 0;padding:0;list-style:none}.xq-rats li{border-bottom:1px solid var(--border);gap:.6rem;padding:.4rem .2rem;font-size:.94rem;line-height:1.5;display:flex}.xq-rats li b{min-width:1.1rem}.xq-rats li.is-ok b{color:oklch(50% .12 150)}.xq-rats li.is-no b{color:oklch(52% .15 30)}.xq-more ul{margin-left:0;list-style:none}.xq-more li{margin:.35rem 0}@media (width<=640px){.xq-opts-fig{grid-template-columns:repeat(2,minmax(0,1fr))}}
