.qq-topics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  width: 100%;
}
@media (max-width: 480px) {
  .qq-topics { grid-template-columns: 1fr; }
}
.qq-topic-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 20px 12px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  cursor: pointer;
  text-align: center;
}
.qq-topic-card:hover { border-color: var(--color-primary); }
.qq-topic-emoji { font-size: 2rem; }
.qq-topic-label { font-weight: 700; color: var(--color-text, #f2f2f5); }
.qq-topic-best { font-size: 0.8rem; opacity: 0.7; }

.qq-question {
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: 100%;
}
.qq-question-text {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0;
}
.qq-choices {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
@media (max-width: 480px) {
  .qq-choices { grid-template-columns: 1fr; }
}
.qq-choice {
  padding: 12px 14px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: inherit;
  font-size: 1rem;
  text-align: left;
  cursor: pointer;
}
.qq-choice:hover:not(:disabled) { border-color: var(--color-primary); }
.qq-choice:disabled { cursor: default; }
.qq-choice--correct {
  border-color: var(--color-success, #4ade80);
  background: rgba(74, 222, 128, 0.12);
}
.qq-choice--wrong {
  border-color: var(--color-accent, #ee6fa8);
  background: rgba(238, 111, 168, 0.12);
}
.qq-fact {
  margin: 0;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: rgba(79, 216, 224, 0.08);
  box-shadow: inset 0 0 0 2px var(--color-border);
}

.qq-summary {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
  padding: 20px 0;
}
.qq-summary-score { font-size: 1.6rem; font-weight: 800; margin: 0; }
.qq-summary-detail { margin: 0; opacity: 0.8; }
.qq-summary-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 8px;
}