.container {
  min-height: 100vh;
  background: #fafafa;
  padding: 0;
}

.header {
  padding: 20px;
  padding-bottom: 16px;
  background: transparent;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;

  .backButton {
    color: #007aff;
    font-weight: 500;
    padding: 4px 12px;
    transition: all 0.3s ease;
    position: absolute;
    left: 20px;

    &:hover {
      color: #0051d5;
      transform: translateX(-4px);
    }
  }

  .title {
    color: #1d1d1f !important;
    margin: 0 !important;
    font-weight: 700;
    font-size: 18px !important;
    text-align: center;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
  }
}

// 统计卡片容器
.statsContainer {
  padding: 0 20px 16px;
}

.statCard {
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(30px) saturate(180%);
  -webkit-backdrop-filter: blur(30px) saturate(180%);
  box-shadow:
    0 2px 12px rgba(0, 0, 0, 0.05),
    0 1px 4px rgba(0, 0, 0, 0.03),
    0 0 0 1px rgba(0, 0, 0, 0.03);
  border: 0.5px solid rgba(0, 0, 0, 0.04);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  &:hover {
    transform: translateY(-4px);
    box-shadow:
      0 8px 32px rgba(0, 0, 0, 0.08),
      0 4px 16px rgba(0, 0, 0, 0.04),
      0 0 0 1px rgba(0, 0, 0, 0.04);
  }

  :global {
    .ant-statistic-title {
      font-size: 13px;
      color: rgba(0, 0, 0, 0.45);
      margin-bottom: 4px;
    }

    .ant-statistic-content {
      font-size: 28px;
    }
  }
}

// 筛选卡片
.filterCard {
  margin: 0 20px 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(30px) saturate(180%);
  -webkit-backdrop-filter: blur(30px) saturate(180%);
  box-shadow:
    0 2px 12px rgba(0, 0, 0, 0.05),
    0 1px 4px rgba(0, 0, 0, 0.03),
    0 0 0 1px rgba(0, 0, 0, 0.03);
  border: 0.5px solid rgba(0, 0, 0, 0.04);
}

.filterContent {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.filterLeft {
  flex: 1;
  min-width: 300px;
}

.filterRight {
  flex-shrink: 0;
}

// 操作按钮卡片（已废弃，保留样式以防需要）
.actionCard {
  margin: 0 20px 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(30px) saturate(180%);
  -webkit-backdrop-filter: blur(30px) saturate(180%);
  box-shadow:
    0 2px 12px rgba(0, 0, 0, 0.05),
    0 1px 4px rgba(0, 0, 0, 0.03),
    0 0 0 1px rgba(0, 0, 0, 0.03);
  border: 0.5px solid rgba(0, 0, 0, 0.04);

  :global {
    .ant-card-body {
      padding: 16px 20px;
    }
  }
}

.primaryButton {
  background: #1890ff;
  border: none;
  box-shadow: 0 2px 8px rgba(24, 144, 255, 0.3);
  transition: all 0.3s ease;
  min-width: 120px;

  &:hover {
    background: #40a9ff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(24, 144, 255, 0.4);
  }

  &:disabled {
    background: #d9d9d9;
    box-shadow: none;
    transform: none;
  }
}

.clearButton {
  background: #fff;
  border: 1px solid #d9d9d9;
  color: rgba(0, 0, 0, 0.65);
  transition: all 0.3s ease;
  min-width: 110px;

  &:hover {
    color: #ff4d4f;
    border-color: #ff4d4f;
    background: #fff1f0;
    transform: translateY(-2px);
    box-shadow: 0 2px 8px rgba(255, 77, 79, 0.2);
  }

  &:disabled {
    color: rgba(0, 0, 0, 0.25);
    background: #f5f5f5;
    border-color: #d9d9d9;
    transform: none;
  }
}

.listCard {
  margin: 0 20px 20px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(30px) saturate(180%);
  -webkit-backdrop-filter: blur(30px) saturate(180%);
  box-shadow:
    0 2px 12px rgba(0, 0, 0, 0.05),
    0 1px 4px rgba(0, 0, 0, 0.03),
    0 0 0 1px rgba(0, 0, 0, 0.03);
  border: 0.5px solid rgba(0, 0, 0, 0.04);
  padding-bottom: 60px;

  :global {
    .ant-list-item {
      border: none !important;
      padding: 0 !important;
    }
  }
}

.listItem {
  padding: 0 !important;
  margin-bottom: 16px !important;

  &:last-child {
    margin-bottom: 0 !important;
  }
}

// 题目卡片
.questionCard {
  width: 100%;
  padding: 20px;
  border-radius: 16px;
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow:
    0 1px 2px rgba(0, 0, 0, 0.03),
    0 1px 6px -1px rgba(0, 0, 0, 0.02),
    0 2px 4px rgba(0, 0, 0, 0.02);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  &:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  }
}

.questionHeader {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

.questionId {
  font-size: 16px;
  color: #1d1d1f;
  font-weight: 600;
}

.deleteButton {
  color: #ff4d4f;
  transition: all 0.3s ease;

  &:hover {
    color: #ff7875;
    background: rgba(255, 77, 79, 0.08);
  }
}

// 题目内容
.questionContent {
  color: #1d1d1f;
  font-size: 15px;
  line-height: 1.6;
  margin-bottom: 12px;
}

// 答案区域
.answerSection {
  margin-bottom: 12px;
  padding: 0;
}

.answerRow {
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.answerLabel {
  font-weight: 600;
  white-space: nowrap;
  font-size: 14px;
}

.answerValue {
  flex: 1;
  font-size: 14px;
  word-break: break-word;
}

// 掌握度进度条区域
.masteryProgress {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.progressHeader {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.progressLabel {
  font-size: 13px;
  font-weight: 600;
  color: #1d1d1f;
}

.masteryTag {
  font-weight: 600;
  border-radius: 6px;
  font-size: 12px;
}

.questionFooter {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  margin-top: 16px;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

// 响应式设计 - 移动端
@media (max-width: 768px) {
  .container {
    padding: 0;
  }

  .header {
    padding: 16px;

    .backButton {
      font-size: 14px;
      padding: 4px 8px;
      left: 16px;
    }

    .title {
      font-size: 16px !important;
    }
  }

  .statsContainer {
    padding: 0 16px 12px;
  }

  .statCard {
    border-radius: 12px;

    :global {
      .ant-statistic-title {
        font-size: 12px;
      }

      .ant-statistic-content {
        font-size: 24px;
      }
    }
  }

  .filterCard {
    margin: 0 16px 12px;
    border-radius: 12px;
  }

  .filterContent {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .filterLeft {
    min-width: auto;
    width: 100%;
  }

  .filterRight {
    width: 100%;

    :global {
      .ant-space {
        width: 100%;
        justify-content: stretch;

        .ant-space-item {
          flex: 1;

          button {
            width: 100%;
          }
        }
      }
    }
  }

  .primaryButton,
  .clearButton {
    min-width: auto;
    font-size: 14px;
  }

  .actionCard {
    margin: 0 16px 12px;
    border-radius: 12px;

    :global {
      .ant-card-body {
        padding: 12px 16px;
      }
    }
  }

  .listCard {
    margin: 0 16px 16px;
    border-radius: 16px;
  }

  .questionCard {
    padding: 16px;
    border-radius: 12px;
  }

  .questionHeader {
    gap: 8px;
    margin-bottom: 12px;
  }

  .questionContent {
    font-size: 14px;
  }

  .masteryProgress {
    margin-top: 12px;
    padding-top: 12px;
  }

  .progressHeader {
    margin-bottom: 10px;
  }

  .progressLabel {
    font-size: 12px;
  }

  .masteryTag {
    font-size: 11px;
  }

  .questionFooter {
    padding-top: 12px;
    margin-top: 12px;
  }

  .questionId {
    font-size: 15px;
  }
}

// 响应式设计 - PC端
@media (min-width: 769px) {
  .container {
    max-width: 1400px;
    margin: 0 auto;
  }

  .header {
    padding: 32px 32px 24px;

    .title {
      font-size: 20px !important;
    }
  }

  .statsContainer {
    padding: 0 32px 20px;
  }

  .filterCard {
    margin: 0 32px 20px;
  }

  .actionCard {
    margin: 0 32px 20px;
  }

  .listCard {
    margin: 0 32px 32px;
    padding-bottom: 0;
  }

  .questionCard {
    padding: 24px;
  }

  .questionHeader {
    margin-bottom: 20px;
  }

  .questionContent {
    font-size: 16px;
  }

  .answerSection {
    margin-bottom: 16px;
  }

  .masteryProgress {
    margin-top: 20px;
    padding-top: 20px;
  }

  .progressHeader {
    margin-bottom: 12px;
  }

  .progressLabel {
    font-size: 14px;
  }

  .masteryTag {
    font-size: 12px;
  }

  .questionFooter {
    padding-top: 20px;
    margin-top: 20px;
  }
}

// 响应式设计 - 超宽屏
@media (min-width: 1600px) {
  .container {
    max-width: 1600px;
  }

  .header {
    .title {
      font-size: 22px !important;
    }
  }
}