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strong{color:var(--paper-ink)}.yt-doc .quiz-prog{margin-bottom:6mm}.yt-doc .quiz-prog-head{display:flex;justify-content:space-between;font-family:var(--fm);font-size:7.5pt;color:var(--ink-faint);letter-spacing:.1em;text-transform:uppercase;margin-bottom:2mm}.yt-doc .quiz-bar{height:5px;background:var(--line);border-radius:3px;overflow:hidden}.yt-doc .quiz-fill{height:100%;background:var(--green);border-radius:3px;width:0%;transition:width .4s}.yt-doc .qcard{margin-bottom:5mm;padding:6mm;border:1px solid var(--line);background:rgba(255,255,255,.02);transition:all .2s;display:none}.yt-doc .qcard.active{display:block;animation:qFade4 .3s ease-out}.yt-doc.light .qcard{background:rgba(0,0,0,.02)}.yt-doc .qcard.answered{border-color:rgba(15,157,88,.3)}.yt-doc .q-num{font-family:var(--fm);font-size:7pt;letter-spacing:.2em;text-transform:uppercase;color:var(--green);margin-bottom:3mm}.yt-doc .q-text{font-family:var(--fh);font-weight:700;font-size:13pt;letter-spacing:-.01em;color:var(--ink);line-height:1.3;margin-bottom:5mm}.yt-doc .q-opts{display:flex;flex-direction:column;gap:2mm}.yt-doc .q-opt{display:flex;align-items:flex-start;gap:3mm;padding:3.5mm 4mm;border:1px solid var(--line);cursor:pointer;transition:all .15s;font-size:9pt;line-height:1.45;color:var(--ink-mute)}.yt-doc .q-opt:hover{border-color:var(--green);background:rgba(15,157,88,.04)}.yt-doc .q-opt-letter{font-family:var(--fh);font-weight:700;font-size:10pt;color:var(--ink-faint);width:18px;flex-shrink:0}.yt-doc .q-opt.right{border-color:var(--green);background:rgba(15,157,88,.1);color:var(--ink)}.yt-doc .q-opt.wrong{border-color:var(--red);background:rgba(229,57,53,.08);color:var(--ink)}.yt-doc .q-opt.picked{opacity:.5;pointer-events:none}.yt-doc .qcard.answered .q-opt{cursor:default}.yt-doc .q-explain{margin-top:4mm;padding:3mm 4mm;border-left:2px solid var(--green);font-size:8.5pt;line-height:1.55;color:var(--ink-mute);display:none}.yt-doc .qcard.answered .q-explain{display:block}.yt-doc .q-explain.miss{border-color:var(--red)}.yt-doc .q-explain strong,.yt-doc .qr-body strong{color:var(--ink)}.yt-doc .q-next{margin-top:5mm;padding:3.5mm 7mm;background:var(--green);color:#fff;font-family:var(--fh);font-weight:700;font-size:9pt;letter-spacing:-.01em;border:0;cursor:pointer;transition:background .2s,transform .15s;border-radius:2px}.yt-doc .q-next:hover{background:var(--green-d);transform:translateY(-1px)}.yt-doc .quiz-result{display:none;margin-top:6mm;padding:6mm;border:2px solid var(--green);background:rgba(15,157,88,.07)}.yt-doc .quiz-result.show{display:block}.yt-doc .qr-head{display:flex;align-items:center;gap:5mm;margin-bottom:5mm;padding-bottom:4mm;border-bottom:1px solid rgba(15,157,88,.2)}.yt-doc .qr-score{font-family:var(--fh);font-weight:800;font-size:42pt;line-height:1;letter-spacing:-.04em;color:var(--green)}.yt-doc .qr-lbl{font-family:var(--fm);font-size:7pt;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:1mm}.yt-doc .qr-level{font-family:var(--fh);font-weight:700;font-size:14pt;letter-spacing:-.02em;color:var(--ink)}.yt-doc .qr-body{font-size:9.5pt;line-height:1.6;color:var(--ink-mute)}.yt-doc .rq-item{display:none}.yt-doc .rq-item.rq-active{display:block;animation:qFade4 .3s ease-out}.yt-doc .rq-progress{display:flex;justify-content:space-between;font-family:var(--fm);font-size:7.5pt;color:var(--ink-faint);letter-spacing:.1em;text-transform:uppercase;margin-bottom:2mm}.yt-doc .rq-progress-bar{height:5px;background:var(--line);border-radius:3px;overflow:hidden;margin-bottom:6mm}.yt-doc .rq-progress-fill{height:100%;background:var(--green);border-radius:3px;width:0%;transition:width .4s}.yt-doc .rq-next{margin-top:5mm;padding:3.5mm 7mm;background:var(--green);color:#fff;font-family:var(--fh);font-weight:700;font-size:9pt;letter-spacing:-.01em;border:0;cursor:pointer;transition:all .2s;border-radius:2px;display:none}.yt-doc .rq-next.show{display:inline-block}.yt-doc .rq-next:hover{background:var(--green-d);transform:translateY(-1px)}@media screen and (max-width:760px){.yt-doc .nf-score-num{font-size:30px}.yt-doc .nf-verdict{font-size:13px}.yt-doc .nf-tag{font-size:9px}.yt-doc .ip-pill,.yt-doc .tt-pill{font-size:10px;padding:6px 10px}.yt-doc .ip-item{font-size:11px}.yt-doc .ip-num{font-size:14px}.yt-doc .tn-mini-frame{width:100px;height:56px}.yt-doc .qr-score{font-size:32px}.yt-doc .qr-level{font-size:14px}.yt-doc .qr-body{font-size:11px}.yt-doc .q-text{font-size:13px}.yt-doc .q-opt{font-size:11px}}