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12px;position:-webkit-sticky;position:sticky;top:0;z-index:10}.question-counter{color:var(--text-secondary);font-size:14px;font-weight:500;margin-bottom:12px}.progress-section{width:100%}.progress-meta{align-items:center;display:flex;justify-content:space-between;margin-bottom:6px}.progress-label{color:var(--text-secondary);font-size:12px}.progress-time{font-feature-settings:"tnum";color:var(--primary);font-size:13px;font-variant-numeric:tabular-nums;font-weight:600}.progress-time.urgent{color:var(--danger)}.progress-track{background:var(--border);border-radius:3px;height:6px;overflow:hidden}.progress-fill{background:linear-gradient(90deg,var(--primary),#818cf8);border-radius:3px;height:100%;transition:width .2s linear}.progress-fill.urgent{background:linear-gradient(90deg,var(--danger),#f87171)}.quiz-body{flex:1 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12px}.complete-desc{color:var(--text-secondary);font-size:15px;line-height:1.6;margin:0}:root{--primary:#4f46e5;--primary-dark:#4338ca;--primary-light:#eef2ff;--success:#10b981;--danger:#ef4444;--text:#1e293b;--text-secondary:#64748b;--border:#e2e8f0;--bg:#f8fafc;--card:#fff;--radius:12px;--shadow:0 1px 3px #00000014}*{box-sizing:border-box}body{-webkit-font-smoothing:antialiased;background:#f8fafc;background:var(--bg);color:#1e293b;color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft 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