/* 考试倒计时 */
.exam-countdown {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  margin-bottom: 18px;
  border-radius: 14px;
  background: linear-gradient(120deg, rgba(59, 108, 255, .12), rgba(59, 108, 255, .04));
  border: 1px solid rgba(59, 108, 255, .18);
  font-size: 15px;
}
.exam-countdown strong { font-size: 22px; }
.exam-countdown.empty { background: rgba(120, 128, 150, .08); border-color: rgba(120, 128, 150, .16); }