/* 全局红色主题 */
page {
  background-color: #fef6f6;
  font-family: "Microsoft YaHei";
}

/* 顶部标题 */
.header {
  position: relative;
  height: 250px;
}
.header image {
  height: 250px;
  width: 400px;
}
.header .title {
  position: absolute;
  bottom: 20rpx;
  left: 0;
  right: 0;
  text-align: center;
  color: white;
  font-size: 40rpx;
  font-weight: bold;
  text-shadow: 2rpx 2rpx 4rpx rgba(0,0,0,0.5);
}

/* 题目卡片 */
.card {
  margin: 30rpx;
  background: white;
  border-radius: 16rpx;
  box-shadow: 0 4rpx 12rpx rgba(210, 50, 50, 0.1);
  overflow: hidden;
}
.question-box {
  padding: 30rpx;
  border-bottom: 2rpx dashed #e74c3c;
}
.category {
  display: block;
  color: #e74c3c;
  font-size: 28rpx;
  margin-bottom: 15rpx;
}
.question-text {
  font-size: 34rpx;
  line-height: 1.5;
}

/* 选项样式 */
.options {
  padding: 20rpx;
}
.option {
  display: flex;
  align-items: center;
  padding: 25rpx;
  margin-bottom: 20rpx;
  border-radius: 12rpx;
  background: #f9f2f2;
  transition: all 0.3s;
}
.option.selected {
  background: #e74c3c;
}
.option.selected .option-key,
.option.selected .option-value {
  color: white;
}
.option-key {
  width: 60rpx;
  font-weight: bold;
  color: #e74c3c;
}
.option-value {
  flex: 1;
}

/* 底部栏 */
.footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20rpx 30rpx;
  background: white;
  box-shadow: 0 -2rpx 10rpx rgba(0,0,0,0.05);
}
.score {
  display: flex;
  align-items: center;
  color: #e74c3c;
  font-size: 32rpx;
}
.star {
  width: 40rpx;
  height: 40rpx;
  margin-right: 10rpx;
}
.submit-btn {
  background: linear-gradient(to right, #e74c3c, #c0392b);
  color: white;
  border-radius: 50rpx;
  font-size: 32rpx;
  padding: 0 40rpx;
  height: 80rpx;
  line-height: 80rpx;
}

/* 结果弹窗 */
.result-modal {
  background: rgba(0,0,0,0.5);
}
.modal-content {
  width: 80%;
  margin: 40vh auto;
  padding: 40rpx;
  border-radius: 20rpx;
  text-align: center;
  background: white;
}
.modal-content.correct {
  border-top: 10rpx solid #2ecc71;
}
.modal-content.wrong {
  border-top: 10rpx solid #e74c3c;
}
.modal-content image {
  width: 100rpx;
  height: 100rpx;
  margin-bottom: 20rpx;
}
.modal-content .explanation {
  display: block;
  margin: 30rpx 0;
  color: #7f8c8d;
  font-size: 28rpx;
}