{/* 中心点计算 */}
            <TabsContent value="centroid" className="space-y-4">
              {/* 选择方式切换 */}
              <div className="flex gap-2">
                <Button
                  variant={mapPickMode === 'polygon' ? 'default' : 'outline'}
                  onClick={() => setMapPickMode(mapPickMode === 'polygon' ? null : 'polygon')}
                  className="flex-1"
                >
                  <MousePointer2 className="w-4 h-4 mr-2" />
                  {mapPickMode === 'polygon' ? '正在使用地图选点' : '地图选点'}
                </Button>
                <Button
                  variant={mapPickMode === null ? 'default' : 'outline'}
                  onClick={() => setMapPickMode(null)}
                  className="flex-1"
                >
                  <Edit3 className="w-4 h-4 mr-2" />
                  手动输入坐标
                </Button>
              </div>

              {mapPickMode === 'polygon' ? (
                <MapPointPicker
                  points={geomPoints}
                  mode="polygon"
                  onPointsChange={setGeomPoints}
                  height="400px"
                  title="在地图上选择多边形顶点"
                />
              ) : (
                <Card className="p-6">
                  <h3 className="mb-4">多边形坐标点</h3>
                  
                  <div className="space-y-3 max-h-96 overflow-y-auto">
                    {geomPoints.map((point, index) => (
                      <div key={index} className="flex items-center gap-2">
                        <Badge variant="outline" className="w-16">点 {index + 1}</Badge>
                        <Input
                          type="number"
                          step="0.000001"
                          value={point.lat}
                          onChange={(e) => handleUpdateGeomPoint(index, 'lat', e.target.value)}
                          placeholder="纬度"
                          className="flex-1"
                        />
                        <Input
                          type="number"
                          step="0.000001"
                          value={point.lng}
                          onChange={(e) => handleUpdateGeomPoint(index, 'lng', e.target.value)}
                          placeholder="经度"
                          className="flex-1"
                        />
                      </div>
                    ))}
                  </div>
                </Card>
              )}

              <Button 
                onClick={handleCalculateCentroid}
                className="w-full bg-purple-600 hover:bg-purple-700"
              >
                <MapPin className="w-4 h-4 mr-2" />
                计算中心点 (ST_Centroid)
              </Button>

              {geomResult && geomResult.type === 'centroid' && (
                <Card className="p-6 bg-purple-50 border-purple-200">
                  <div className="flex items-center gap-2 mb-4">
                    <CheckCircle2 className="w-5 h-5 text-purple-600" />
                    <h3 className="text-purple-900">几何中心坐标</h3>
                  </div>
                  <div className="grid grid-cols-2 gap-4">
                    <div className="p-4 bg-white rounded-lg">
                      <div className="text-sm text-muted-foreground">纬度</div>
                      <div className="text-xl text-purple-600 mt-1 font-mono">
                        {geomResult.centroid.lat.toFixed(6)}
                      </div>
                    </div>
                    <div className="p-4 bg-white rounded-lg">
                      <div className="text-sm text-muted-foreground">经度</div>
                      <div className="text-xl text-purple-600 mt-1 font-mono">
                        {geomResult.centroid.lng.toFixed(6)}
                      </div>
                    </div>
                  </div>
                </Card>
              )}
            </TabsContent>

            {/* 距离计算 */}
            <TabsContent value="distance" className="space-y-4">
              {/* 选择方式切换 */}
              <div className="flex gap-2">
                <Button
                  variant={mapPickMode === 'distance-p1' || mapPickMode === 'distance-p2' ? 'default' : 'outline'}
                  onClick={() => {
                    if (mapPickMode === 'distance-p1' || mapPickMode === 'distance-p2') {
                      setMapPickMode(null);
                    } else {
                      setMapPickMode('distance-p1');
                    }
                  }}
                  className="flex-1"
                >
                  <MousePointer2 className="w-4 h-4 mr-2" />
                  {(mapPickMode === 'distance-p1' || mapPickMode === 'distance-p2') ? '正在使用地图选点' : '地图选点'}
                </Button>
                <Button
                  variant={mapPickMode === null ? 'default' : 'outline'}
                  onClick={() => setMapPickMode(null)}
                  className="flex-1"
                >
                  <Edit3 className="w-4 h-4 mr-2" />
                  手动输入坐标
                </Button>
              </div>

              {(mapPickMode === 'distance-p1' || mapPickMode === 'distance-p2') ? (
                <div className="space-y-4">
                  <Card className="p-4 bg-orange-50 border-orange-200">
                    <p className="text-sm text-orange-800">
                      💡 当前模式：选择{mapPickMode === 'distance-p1' ? '点1' : '点2'}坐标
                    </p>
                  </Card>
                  
                  <MapPointPicker
                    points={mapPickMode === 'distance-p1' ? [distPoint1] : [distPoint2]}
                    mode="single"
                    onPointsChange={(points) => {
                      if (points.length > 0) {
                        if (mapPickMode === 'distance-p1') {
                          setDistPoint1(points[0]);
                        } else {
                          setDistPoint2(points[0]);
                        }
                      }
                    }}
                    height="400px"
                    title={`在地图上选择${mapPickMode === 'distance-p1' ? '点1' : '点2'}位置`}
                  />
                  
                  <div className="flex gap-2">
                    <Button
                      variant="outline"
                      className="flex-1"
                      onClick={() => setMapPickMode('distance-p1')}
                      disabled={mapPickMode === 'distance-p1'}
                    >
                      选择点1
                    </Button>
                    <Button
                      variant="outline"
                      className="flex-1"
                      onClick={() => setMapPickMode('distance-p2')}
                      disabled={mapPickMode === 'distance-p2'}
                    >
                      选择点2
                    </Button>
                  </div>
                </div>
              ) : (
                <Card className="p-6">
                  <h3 className="mb-4">两点坐标</h3>
                  
                  <div className="space-y-4">
                    <div>
                      <div className="mb-2 font-medium">点1坐标</div>
                      <div className="grid grid-cols-2 gap-3">
                        <div>
                          <label className="text-sm text-muted-foreground">纬度</label>
                          <Input
                            type="number"
                            step="0.000001"
                            value={distPoint1.lat}
                            onChange={(e) => setDistPoint1({ ...distPoint1, lat: parseFloat(e.target.value) || 0 })}
                          />
                        </div>
                        <div>
                          <label className="text-sm text-muted-foreground">经度</label>
                          <Input
                            type="number"
                            step="0.000001"
                            value={distPoint1.lng}
                            onChange={(e) => setDistPoint1({ ...distPoint1, lng: parseFloat(e.target.value) || 0 })}
                          />
                        </div>
                      </div>
                    </div>

                    <div>
                      <div className="mb-2 font-medium">点2坐标</div>
                      <div className="grid grid-cols-2 gap-3">
                        <div>
                          <label className="text-sm text-muted-foreground">纬度</label>
                          <Input
                            type="number"
                            step="0.000001"
                            value={distPoint2.lat}
                            onChange={(e) => setDistPoint2({ ...distPoint2, lat: parseFloat(e.target.value) || 0 })}
                          />
                        </div>
                        <div>
                          <label className="text-sm text-muted-foreground">经度</label>
                          <Input
                            type="number"
                            step="0.000001"
                            value={distPoint2.lng}
                            onChange={(e) => setDistPoint2({ ...distPoint2, lng: parseFloat(e.target.value) || 0 })}
                          />
                        </div>
                      </div>
                    </div>
                  </div>
                </Card>
              )}

              <Button 
                onClick={handleCalculateDistance}
                className="w-full bg-orange-600 hover:bg-orange-700"
              >
                <MapIcon className="w-4 h-4 mr-2" />
                计算距离 (ST_Distance)
              </Button>

              {geomResult && geomResult.type === 'distance' && (
                <Card className="p-6 bg-orange-50 border-orange-200">
                  <div className="flex items-center gap-2 mb-4">
                    <CheckCircle2 className="w-5 h-5 text-orange-600" />
                    <h3 className="text-orange-900">两点间距离</h3>
                  </div>
                  <div className="grid grid-cols-2 gap-4">
                    <div className="p-4 bg-white rounded-lg">
                      <div className="text-sm text-muted-foreground">米</div>
                      <div className="text-2xl text-orange-600 mt-1">{geomResult.distance}</div>
                      <div className="text-xs text-muted-foreground mt-1">m</div>
                    </div>
                    <div className="p-4 bg-white rounded-lg">
                      <div className="text-sm text-muted-foreground">千米</div>
                      <div className="text-2xl text-orange-600 mt-1">{geomResult.distanceKm}</div>
                      <div className="text-xs text-muted-foreground mt-1">km</div>
                    </div>
                  </div>
                </Card>
              )}
            </TabsContent>

            {/* 包围盒计算 */}
            <TabsContent value="bbox" className="space-y-4">
              {/* 选择方式切换 */}
              <div className="flex gap-2">
                <Button
                  variant={mapPickMode === 'polygon' ? 'default' : 'outline'}
                  onClick={() => setMapPickMode(mapPickMode === 'polygon' ? null : 'polygon')}
                  className="flex-1"
                >
                  <MousePointer2 className="w-4 h-4 mr-2" />
                  {mapPickMode === 'polygon' ? '正在使用地图选点' : '地图选点'}
                </Button>
                <Button
                  variant={mapPickMode === null ? 'default' : 'outline'}
                  onClick={() => setMapPickMode(null)}
                  className="flex-1"
                >
                  <Edit3 className="w-4 h-4 mr-2" />
                  手动输入坐标
                </Button>
              </div>

              {mapPickMode === 'polygon' ? (
                <MapPointPicker
                  points={geomPoints}
                  mode="polygon"
                  onPointsChange={setGeomPoints}
                  height="400px"
                  title="在地图上选择多边形顶点"
                />
              ) : (
                <Card className="p-6">
                  <h3 className="mb-4">多边形坐标点</h3>
                  
                  <div className="space-y-3 max-h-96 overflow-y-auto">
                    {geomPoints.map((point, index) => (
                      <div key={index} className="flex items-center gap-2">
                        <Badge variant="outline" className="w-16">点 {index + 1}</Badge>
                        <Input
                          type="number"
                          step="0.000001"
                          value={point.lat}
                          onChange={(e) => handleUpdateGeomPoint(index, 'lat', e.target.value)}
                          placeholder="纬度"
                          className="flex-1"
                        />
                        <Input
                          type="number"
                          step="0.000001"
                          value={point.lng}
                          onChange={(e) => handleUpdateGeomPoint(index, 'lng', e.target.value)}
                          placeholder="经度"
                          className="flex-1"
                        />
                      </div>
                    ))}
                  </div>
                </Card>
              )}

              <Button 
                onClick={handleCalculateBBox}
                className="w-full bg-indigo-600 hover:bg-indigo-700"
              >
                <Circle className="w-4 h-4 mr-2" />
                计算包围盒 (ST_Envelope)
              </Button>

              {geomResult && geomResult.type === 'bbox' && (
                <Card className="p-6 bg-indigo-50 border-indigo-200">
                  <div className="flex items-center gap-2 mb-4">
                    <CheckCircle2 className="w-5 h-5 text-indigo-600" />
                    <h3 className="text-indigo-900">包围盒坐标</h3>
                  </div>
                  <div className="grid grid-cols-2 gap-4">
                    <div className="p-4 bg-white rounded-lg">
                      <div className="text-sm text-muted-foreground">最小纬度</div>
                      <div className="text-lg text-indigo-600 mt-1 font-mono">
                        {geomResult.bbox.minLat.toFixed(6)}
                      </div>
                    </div>
                    <div className="p-4 bg-white rounded-lg">
                      <div className="text-sm text-muted-foreground">最大纬度</div>
                      <div className="text-lg text-indigo-600 mt-1 font-mono">
                        {geomResult.bbox.maxLat.toFixed(6)}
                      </div>
                    </div>
                    <div className="p-4 bg-white rounded-lg">
                      <div className="text-sm text-muted-foreground">最小经度</div>
                      <div className="text-lg text-indigo-600 mt-1 font-mono">
                        {geomResult.bbox.minLng.toFixed(6)}
                      </div>
                    </div>
                    <div className="p-4 bg-white rounded-lg">
                      <div className="text-sm text-muted-foreground">最大经度</div>
                      <div className="text-lg text-indigo-600 mt-1 font-mono">
                        {geomResult.bbox.maxLng.toFixed(6)}
                      </div>
                    </div>
                  </div>
                </Card>
              )}
            </TabsContent>