.quiz-wrapper{margin-top:52px;border:1px solid var(--accent-border);border-radius:14px;overflow:hidden;background:var(--bg-surface);box-shadow:var(--shadow-sm)}.quiz-wrapper .quiz-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px 16px;border-bottom:1px solid var(--border-subtle);flex-wrap:wrap;gap:12px}.quiz-wrapper .quiz-header-left{display:flex;align-items:center;gap:12px}.quiz-wrapper .quiz-icon{width:40px;height:40px;border-radius:10px;background:var(--accent-soft);border:1px solid var(--accent-border);display:flex;align-items:center;justify-content:center;color:var(--accent);flex-shrink:0}.quiz-wrapper .quiz-title{font-size:16px;font-weight:700;color:var(--text-primary);margin:0 0 2px;letter-spacing:-.2px}.quiz-wrapper .quiz-subtitle{font-size:12px;color:var(--text-tertiary);margin:0}.quiz-wrapper .quiz-score-box{display:flex;align-items:baseline;gap:3px;font-size:22px;font-weight:800;color:var(--accent);letter-spacing:-.5px}.quiz-wrapper .score-sep{color:var(--text-faint);font-size:18px}.quiz-wrapper .score-label{font-size:12px;font-weight:500;color:var(--text-tertiary);margin-left:4px}.quiz-wrapper .quiz-progress-track{height:3px;background:var(--bg-surface-2)}.quiz-wrapper .quiz-progress-bar{height:100%;width:0%;background:linear-gradient(90deg,var(--grad-1),var(--grad-2));transition:width .4s ease;border-radius:0 2px 2px 0}.quiz-wrapper .qz-card{padding:20px 24px;border-bottom:1px solid var(--border-subtle)}.quiz-wrapper .qz-qhead{display:flex;gap:12px;align-items:flex-start;margin-bottom:14px}.quiz-wrapper .qz-qnum{display:inline-flex;align-items:center;justify-content:center;min-width:24px;height:24px;border-radius:50%;background:var(--accent-soft);border:1px solid var(--accent-border);font-size:11px;font-weight:700;color:var(--accent);flex-shrink:0;margin-top:2px}.quiz-wrapper .qz-qtext{font-size:14px;font-weight:500;color:var(--text-primary);line-height:1.6;margin:0}.quiz-wrapper .qz-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-left:36px}@media(max-width:560px){.quiz-wrapper .qz-grid{grid-template-columns:1fr;margin-left:0}}.quiz-wrapper .qz-opt{display:flex;align-items:flex-start;gap:8px;padding:10px 14px;border-radius:8px;border:1px solid var(--border-default);background:var(--bg-surface-2);color:var(--text-secondary);font-size:13px;text-align:left;cursor:pointer;line-height:1.45;transition:border-color .15s,background .15s,color .15s,opacity .15s;font-family:inherit;width:100%}.quiz-wrapper .qz-opt:not(:disabled):hover{border-color:var(--accent-border);background:var(--accent-soft);color:var(--text-primary)}.quiz-wrapper .qz-letter{font-size:10px;font-weight:700;color:var(--text-faint);flex-shrink:0;margin-top:1px;min-width:14px}.quiz-wrapper .qz-opt--correct{border-color:var(--success);background:var(--success-soft);color:var(--success);cursor:default}.quiz-wrapper .qz-opt--correct .qz-letter{color:var(--success)}.quiz-wrapper .qz-opt--wrong{border-color:var(--danger);background:var(--danger-soft);color:var(--danger);cursor:default}.quiz-wrapper .qz-opt--wrong .qz-letter{color:var(--danger)}.quiz-wrapper .qz-opt--dim{opacity:.4;cursor:default}.quiz-wrapper .qz-fb{margin:14px 0 0 36px;padding:14px 16px;border-radius:8px;font-size:13px;line-height:1.65}@media(max-width:560px){.quiz-wrapper .qz-fb{margin-left:0}}.quiz-wrapper .qz-fb--correct{background:var(--success-soft);border:1px solid var(--success)}.quiz-wrapper .qz-fb--wrong{background:var(--danger-soft);border:1px solid var(--danger)}.quiz-wrapper .qz-fb-label{display:flex;align-items:center;gap:6px;font-weight:600;font-size:13px;margin-bottom:8px}.quiz-wrapper .qz-fb--correct .qz-fb-label{color:var(--success)}.quiz-wrapper .qz-fb--wrong .qz-fb-label{color:var(--danger)}.quiz-wrapper .qz-fb-exp{margin:0;color:var(--text-secondary)}.quiz-wrapper .qz-fb-exp--spaced{margin-bottom:10px}.quiz-wrapper .qz-fb-why{margin:0;padding-top:10px;border-top:1px solid var(--success);color:var(--success);font-size:12.5px}.quiz-wrapper .qz-fb-why strong{color:var(--success)}.quiz-wrapper .quiz-result{padding:36px 24px;text-align:center;border-top:1px solid var(--border-subtle)}.quiz-wrapper .qz-result-icon{font-size:36px;margin-bottom:12px}.quiz-wrapper .qz-result-score{font-size:30px;font-weight:800;letter-spacing:-.5px;margin-bottom:4px}.quiz-wrapper .qz-result-label{font-size:15px;font-weight:600;margin-bottom:8px}.quiz-wrapper .qz-result-pct{font-size:13px;color:var(--text-tertiary);margin-bottom:24px}.quiz-wrapper .qz-grade--perfect{color:var(--success)}.quiz-wrapper .qz-grade--great{color:var(--accent)}.quiz-wrapper .qz-grade--good{color:var(--warning)}.quiz-wrapper .qz-grade--retry{color:var(--danger)}.quiz-wrapper .qz-retry-btn{padding:10px 24px;border-radius:8px;font-size:13px;font-weight:600;color:var(--accent-on);cursor:pointer;font-family:inherit;background:var(--accent);border:1px solid var(--accent-border);box-shadow:var(--shadow-md);transition:transform .15s,background .2s}.quiz-wrapper .qz-retry-btn:hover{background:var(--accent-hover);transform:translateY(-1px)}.card[data-astro-cid-ldcvgv4j]{display:flex;flex-direction:column;background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:10px;padding:18px;text-decoration:none;box-shadow:var(--shadow-sm);transition:border-color .2s ease,box-shadow .2s ease,transform .15s ease;height:100%}.card[data-astro-cid-ldcvgv4j]:hover{border-color:var(--accent-border);box-shadow:var(--shadow-md);transform:translateY(-2px)}.card--compact[data-astro-cid-ldcvgv4j]{padding:14px;border-radius:8px}.card-topic[data-astro-cid-ldcvgv4j]{font-size:10px;font-weight:700;color:var(--accent);letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px}.card-title[data-astro-cid-ldcvgv4j]{font-family:Inter Tight,Inter,sans-serif;font-size:14px;font-weight:600;color:var(--text-primary);line-height:1.4;letter-spacing:-.2px;margin-bottom:8px;flex:1}.card--compact[data-astro-cid-ldcvgv4j] .card-title[data-astro-cid-ldcvgv4j]{font-size:13px;margin-bottom:10px}.card-desc[data-astro-cid-ldcvgv4j]{font-size:12px;color:var(--text-tertiary);line-height:1.6;margin-bottom:14px;flex:1}.card-footer[data-astro-cid-ldcvgv4j]{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:10px;border-top:1px solid var(--border-subtle)}.card-date[data-astro-cid-ldcvgv4j]{font-size:11px;color:var(--text-faint)}.card-meta-right[data-astro-cid-ldcvgv4j]{display:flex;align-items:center;gap:5px}.card-time[data-astro-cid-ldcvgv4j]{font-size:11px;color:var(--text-tertiary)}.card-sep[data-astro-cid-ldcvgv4j]{font-size:11px;color:var(--text-faint)}.card-diff[data-astro-cid-ldcvgv4j]{font-size:11px;font-weight:500}.related-section[data-astro-cid-2u677oxp]{margin-top:48px;padding-top:32px;border-top:1px solid var(--border-subtle);max-width:680px}.related-heading[data-astro-cid-2u677oxp]{font-size:14px;font-weight:700;color:var(--text-tertiary);letter-spacing:.06em;text-transform:uppercase;margin-bottom:16px}.related-grid[data-astro-cid-2u677oxp]{display:grid;grid-template-columns:1fr;gap:10px}@media(min-width:640px){.related-grid[data-astro-cid-2u677oxp]{grid-template-columns:repeat(3,1fr)}}