整合三个排行榜为单一可切换的排行榜界面

- 合并每日一练排行榜、今日排行榜、总排行榜到一个界面
- 添加三个可点击切换的标签页
- 优化滑块动画,支持三个位置(左、中、右)
- 统一加载状态显示
- 保持各排行榜原有的数据展示和样式

web/src/pages/Home.tsx

@@ -108,8 +108,8 @@ const Home: React.FC = () => {
   const [dailyRanking, setDailyRanking] = useState<questionApi.UserStats[]>([])
   const [totalRanking, setTotalRanking] = useState<questionApi.UserStats[]>([])
   const [rankingLoading, setRankingLoading] = useState(false)
-  const [rankingType, setRankingType] = useState<'daily' | 'total'>('daily') // 排行榜类型：每日或总榜
+  const [rankingType, setRankingType] = useState<'daily-exam' | 'daily' | 'total'>('daily-exam') // 排行榜类型：每日一练、每日或总榜
-  const [sliderPosition, setSliderPosition] = useState<'left' | 'right'>('left') // 滑块位置
+  const [sliderPosition, setSliderPosition] = useState<'left' | 'center' | 'right'>('left') // 滑块位置
 
   // 每日一练排行榜状态
   const [dailyExamRanking, setDailyExamRanking] = useState<{
@@ -188,7 +188,9 @@ const Home: React.FC = () => {
 
   // 加载当前选中的排行榜数据
   const loadCurrentRanking = async () => {
-    if (rankingType === 'daily') {
+    if (rankingType === 'daily-exam') {
+      await loadDailyExamRanking()
+    } else if (rankingType === 'daily') {
       await loadDailyRanking()
     } else {
       await loadTotalRanking()
@@ -196,9 +198,15 @@ const Home: React.FC = () => {
   }
 
   // 切换排行榜类型
-  const switchRankingType = (type: 'daily' | 'total') => {
+  const switchRankingType = (type: 'daily-exam' | 'daily' | 'total') => {
     setRankingType(type)
-    setSliderPosition(type === 'daily' ? 'left' : 'right')
+    if (type === 'daily-exam') {
+      setSliderPosition('left')
+    } else if (type === 'daily') {
+      setSliderPosition('center')
+    } else {
+      setSliderPosition('right')
+    }
   }
 
   // 加载每日一练排行榜
@@ -241,7 +249,6 @@ const Home: React.FC = () => {
   useEffect(() => {
     loadStatistics()
     loadCurrentRanking()
-    loadDailyExamRanking()
   }, [rankingType])
 
   // 动态加载聊天插件（仅在首页加载）
@@ -724,94 +731,18 @@ const Home: React.FC = () => {
         </Row>
       </div>
 
-      {/* 每日一练排行榜 */}
-      <div className={styles.rankingSection}>
-        <Title level={4} className={styles.sectionTitle}>
-          <CrownOutlined style={{ color: '#fa8c16' }} /> 每日一练排行榜
-        </Title>
-        {dailyExamLoading ? (
-          <Card className={styles.rankingCard} loading={true} />
-        ) : dailyExamRanking.rankings.length === 0 ? (
-          <Card className={styles.rankingCard}>
-            <div style={{ textAlign: 'center', padding: '40px 20px', color: '#8c8c8c' }}>
-              <CrownOutlined style={{ fontSize: 48, marginBottom: 16, opacity: 0.3, color: '#fa8c16' }} />
-              <div>今日每日一练尚未生成</div>
-              <div style={{ fontSize: 13, marginTop: 8 }}>请等待系统每天凌晨1点自动生成</div>
-            </div>
-          </Card>
-        ) : (
-          <Card className={styles.rankingCard}>
-            {dailyExamRanking.exam_title && (
-              <div style={{
-                padding: '12px 16px',
-                background: 'linear-gradient(135deg, #fff7e6 0%, #ffe7ba 100%)',
-                borderRadius: '8px',
-                marginBottom: '16px',
-                display: 'flex',
-                alignItems: 'center',
-                gap: '8px'
-              }}>
-                <FileTextOutlined style={{ color: '#fa8c16', fontSize: 16 }} />
-                <Text strong style={{ color: '#fa8c16' }}>{dailyExamRanking.exam_title}</Text>
-              </div>
-            )}
-            <div className={styles.rankingList}>
-              {dailyExamRanking.rankings.map((user, index) => (
-                <div key={user.user_id} className={styles.rankingItem}>
-                  <div className={styles.rankingLeft}>
-                    {index < 3 ? (
-                      <div className={`${styles.rankBadge} ${styles[`rank${index + 1}`]}`}>
-                        {index === 0 && <CrownOutlined />}
-                        {index === 1 && <CrownOutlined />}
-                        {index === 2 && <CrownOutlined />}
-                      </div>
-                    ) : (
-                      <div className={styles.rankNumber}>{index + 1}</div>
-                    )}
-                    <Avatar
-                      src={user.avatar || undefined}
-                      size={40}
-                      icon={<UserOutlined />}
-                      className={styles.rankAvatar}
-                    />
-                    <div className={styles.rankUserInfo}>
-                      <div className={styles.rankNickname}>{user.nickname}</div>
-                      <div className={styles.rankUsername}>@{user.username}</div>
-                    </div>
-                  </div>
-                  <div className={styles.rankingRight}>
-                    <div className={styles.rankStat}>
-                      <div className={styles.rankStatValue} style={{
-                        color: user.score >= 80 ? '#52c41a' : user.score >= 60 ? '#faad14' : '#ff4d4f',
-                        fontSize: 18,
-                        fontWeight: 'bold'
-                      }}>
-                        {user.score}
-                      </div>
-                      <div className={styles.rankStatLabel}>得分</div>
-                    </div>
-                    <div className={styles.rankDivider}></div>
-                    <div className={styles.rankStat}>
-                      <div className={styles.rankStatValue}>
-                        {Math.floor(user.time_spent / 60)}'
-                        {user.time_spent % 60 < 10 ? '0' : ''}{user.time_spent % 60}"
-                      </div>
-                      <div className={styles.rankStatLabel}>用时</div>
-                    </div>
-                  </div>
-                </div>
-              ))}
-            </div>
-          </Card>
-        )}
-      </div>
-
       {/* 排行榜 */}
       <div className={styles.rankingSection}>
         <Title level={4} className={styles.sectionTitle}>
           <TrophyOutlined /> 排行榜
         </Title>
         <div className={styles.rankingSwitch}>
+          <div
+            className={`${styles.rankingSwitchButton} ${rankingType === 'daily-exam' ? styles.active : ''}`}
+            onClick={() => switchRankingType('daily-exam')}
+          >
+            每日一练
+          </div>
           <div
             className={`${styles.rankingSwitchButton} ${rankingType === 'daily' ? styles.active : ''}`}
             onClick={() => switchRankingType('daily')}
@@ -827,13 +758,87 @@ const Home: React.FC = () => {
           <div
             className={styles.rankingSwitchSlider}
             style={{
-              width: 'calc(50% - 4px)',
+              width: 'calc(33.33% - 4px)',
-              left: sliderPosition === 'left' ? '4px' : 'calc(50% + 0px)',
+              left: sliderPosition === 'left' ? '4px' : sliderPosition === 'center' ? 'calc(33.33% + 0px)' : 'calc(66.66% - 4px)',
             }}
           />
         </div>
-        {rankingLoading ? (
+        {(rankingLoading || dailyExamLoading) ? (
           <Card className={styles.rankingCard} loading={true} />
+        ) : rankingType === 'daily-exam' ? (
+          dailyExamRanking.rankings.length === 0 ? (
+            <Card className={styles.rankingCard}>
+              <div style={{ textAlign: 'center', padding: '40px 20px', color: '#8c8c8c' }}>
+                <CrownOutlined style={{ fontSize: 48, marginBottom: 16, opacity: 0.3, color: '#fa8c16' }} />
+                <div>今日每日一练尚未生成</div>
+                <div style={{ fontSize: 13, marginTop: 8 }}>请等待系统每天凌晨1点自动生成</div>
+              </div>
+            </Card>
+          ) : (
+            <Card className={styles.rankingCard}>
+              {dailyExamRanking.exam_title && (
+                <div style={{
+                  padding: '12px 16px',
+                  background: 'linear-gradient(135deg, #fff7e6 0%, #ffe7ba 100%)',
+                  borderRadius: '8px',
+                  marginBottom: '16px',
+                  display: 'flex',
+                  alignItems: 'center',
+                  gap: '8px'
+                }}>
+                  <FileTextOutlined style={{ color: '#fa8c16', fontSize: 16 }} />
+                  <Text strong style={{ color: '#fa8c16' }}>{dailyExamRanking.exam_title}</Text>
+                </div>
+              )}
+              <div className={styles.rankingList}>
+                {dailyExamRanking.rankings.map((user, index) => (
+                  <div key={user.user_id} className={styles.rankingItem}>
+                    <div className={styles.rankingLeft}>
+                      {index < 3 ? (
+                        <div className={`${styles.rankBadge} ${styles[`rank${index + 1}`]}`}>
+                          {index === 0 && <CrownOutlined />}
+                          {index === 1 && <CrownOutlined />}
+                          {index === 2 && <CrownOutlined />}
+                        </div>
+                      ) : (
+                        <div className={styles.rankNumber}>{index + 1}</div>
+                      )}
+                      <Avatar
+                        src={user.avatar || undefined}
+                        size={40}
+                        icon={<UserOutlined />}
+                        className={styles.rankAvatar}
+                      />
+                      <div className={styles.rankUserInfo}>
+                        <div className={styles.rankNickname}>{user.nickname}</div>
+                        <div className={styles.rankUsername}>@{user.username}</div>
+                      </div>
+                    </div>
+                    <div className={styles.rankingRight}>
+                      <div className={styles.rankStat}>
+                        <div className={styles.rankStatValue} style={{
+                          color: user.score >= 80 ? '#52c41a' : user.score >= 60 ? '#faad14' : '#ff4d4f',
+                          fontSize: 18,
+                          fontWeight: 'bold'
+                        }}>
+                          {user.score}
+                        </div>
+                        <div className={styles.rankStatLabel}>得分</div>
+                      </div>
+                      <div className={styles.rankDivider}></div>
+                      <div className={styles.rankStat}>
+                        <div className={styles.rankStatValue}>
+                          {Math.floor(user.time_spent / 60)}'
+                          {user.time_spent % 60 < 10 ? '0' : ''}{user.time_spent % 60}"
+                        </div>
+                        <div className={styles.rankStatLabel}>用时</div>
+                      </div>
+                    </div>
+                  </div>
+                ))}
+              </div>
+            </Card>
+          )
         ) : rankingType === 'daily' ? (
           dailyRanking.length === 0 ? (
             <Card className={styles.rankingCard}>