.pc-exam-practice {
  padding: 28px 0 46px;
}

.pc-exam-head {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 24px;
  border: 1px solid #e5e5e5;
  background: #fff;
}

.pc-exam-head span {
  color: #18aa65;
  font-size: 14px;
}

.pc-exam-head h1 {
  margin: 8px 0;
  color: #333;
  font-size: 26px;
  font-weight: 500;
}

.pc-exam-head p {
  margin: 0;
  color: #777;
}

.pc-exam-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.pc-exam-actions label {
  display: grid;
  gap: 6px;
  color: #666;
  font-size: 13px;
}

.pc-exam-actions select {
  width: 118px;
  height: 34px;
  border: 1px solid #dcdcdc;
  background: #fff;
}

.pc-exam-body {
  min-height: 300px;
  padding: 24px;
  border: 1px solid #e5e5e5;
  border-top: 0;
  background: #fff;
}

.pc-exam-question h2 {
  margin: 0 0 18px;
  color: #222;
  font-size: 22px;
  font-weight: 500;
  line-height: 1.7;
}

.pc-exam-question > img {
  max-width: 420px;
  margin: 0 0 18px;
  border: 1px solid #eee;
}

.pc-exam-options {
  display: grid;
  gap: 12px;
}

.pc-exam-options button {
  display: flex;
  gap: 12px;
  align-items: center;
  min-height: 42px;
  padding: 9px 12px;
  border: 1px solid #ddd;
  color: #333;
  background: #fff;
  text-align: left;
  cursor: pointer;
}

.pc-exam-options button.active {
  border-color: #18aa65;
  background: #f0fff8;
}

.pc-exam-options b {
  display: grid;
  flex: 0 0 26px;
  width: 26px;
  height: 26px;
  place-items: center;
  color: #fff;
  background: #258fc7;
  font-weight: 400;
}

.pc-exam-submit,
.pc-exam-footer button {
  height: 36px;
  padding: 0 22px;
  border: 0;
  color: #fff;
  background: #18aa65;
  cursor: pointer;
}

.pc-exam-submit {
  margin-top: 18px;
}

.pc-exam-submit:disabled,
.pc-exam-footer button:disabled {
  cursor: not-allowed;
  opacity: .55;
}

.pc-exam-result {
  margin-top: 16px;
  padding: 12px 14px;
  border: 1px solid #f0e2c2;
  color: #8a6500;
  background: #fff9ea;
  line-height: 1.7;
}

.pc-exam-result.right {
  border-color: #bde8ce;
  color: #126b3a;
  background: #f0fff8;
}

.pc-exam-result.wrong {
  border-color: #ffd2c2;
  color: #9b2c12;
  background: #fff6f0;
}

.pc-exam-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  padding: 16px 24px;
  border: 1px solid #e5e5e5;
  border-top: 0;
  background: #fafafa;
}

.pc-exam-footer p,
.pc-exam-empty {
  margin: 0;
  color: #777;
}

@media (max-width: 760px) {
  .pc-exam-head {
    flex-direction: column;
  }
}