.site-header__logo{height:44px;width:auto;display:block}:root{--quiz-border:#dee2e6;--quiz-muted:#6c757d;--quiz-bg:#f8f9fa;--quiz-correct-bg:#d1e7dd;--quiz-correct-border:#a3cfbb;--quiz-wrong-bg:#f8d7da;--quiz-wrong-border:#f1aeb5;--quiz-card-shadow:0 8px 30px rgba(0,0,0,0.06)}body{background:#f5f7fb}.quiz-wrap{max-width:900px}.quiz-card{border:1px solid var(--quiz-border);border-radius:1rem;-webkit-box-shadow:var(--quiz-card-shadow);box-shadow:var(--quiz-card-shadow);background:#fff}.quiz-sentence{font-size:1.2rem;line-height:1.9}.blank-slot{display:-webkit-inline-box;display:-ms-inline-flexbox;display:inline-flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;min-width:140px;padding:.4rem .8rem;margin:0 .2rem;border:2px dashed #adb5bd;border-radius:.75rem;background:#fff;font-weight:600;vertical-align:middle;cursor:pointer;-webkit-transition:all .2s ease;transition:all .2s ease}.blank-slot.is-active{border-color:#0d6efd;-webkit-box-shadow:0 0 0 .2rem rgba(13,110,253,0.15);box-shadow:0 0 0 .2rem rgba(13,110,253,0.15)}.blank-slot.is-filled{border-style:solid;color:#212529}.blank-slot.is-correct{background:var(--quiz-correct-bg);border-color:var(--quiz-correct-border)}.blank-slot.is-wrong{background:var(--quiz-wrong-bg);border-color:var(--quiz-wrong-border)}.option-btn{min-width:120px}.option-btn.used{opacity:.55}.progress-count{color:var(--quiz-muted);font-size:.95rem}.result-box{background:var(--quiz-bg);border:1px solid var(--quiz-border);border-radius:1rem}.review-answer-correct{color:#198754;font-weight:700}.review-answer-wrong{color:#dc3545;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px;font-weight:700}.review-answer-expected{font-weight:700}.overlay-backdrop{position:fixed;inset:0;background:rgba(255,255,255,0.08);display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;padding:1rem;z-index:9999;pointer-events:none}.overlay-mark{width:120px;height:120px;border-radius:999px;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;font-size:3.5rem;font-weight:700;color:#fff;-webkit-transform:scale(0.85);transform:scale(0.85);opacity:0;-webkit-animation:quizMarkPop 1.1s ease forwards;animation:quizMarkPop 1.1s ease forwards;-webkit-box-shadow:0 12px 40px rgba(0,0,0,0.18);box-shadow:0 12px 40px rgba(0,0,0,0.18)}.overlay-mark.is-correct{background:rgba(25,135,84,0.92)}.overlay-mark.is-wrong{background:rgba(220,53,69,0.92)}@-webkit-keyframes quizMarkPop{0%{-webkit-transform:scale(0.7);transform:scale(0.7);opacity:0}20%{-webkit-transform:scale(1);transform:scale(1);opacity:1}80%{-webkit-transform:scale(1);transform:scale(1);opacity:1}100%{-webkit-transform:scale(0.96);transform:scale(0.96);opacity:0}}@keyframes quizMarkPop{0%{-webkit-transform:scale(0.7);transform:scale(0.7);opacity:0}20%{-webkit-transform:scale(1);transform:scale(1);opacity:1}80%{-webkit-transform:scale(1);transform:scale(1);opacity:1}100%{-webkit-transform:scale(0.96);transform:scale(0.96);opacity:0}}.review-item+.review-item{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--quiz-border)}.review-label{font-size:.85rem;color:var(--quiz-muted);margin-bottom:.35rem}.result-box{background:var(--quiz-bg);border:1px solid var(--quiz-border);border-radius:1rem}.question-feedback{min-height:24px}.sentence-box{background:#f8f9fa;border-radius:1rem}.quiz-sentence .blank-slot{margin:0 6px}
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