2026-05-08-03-03-52 修正DICOM切片范围为单范围条

WebSite/src/components/ReverseWorkspace.tsx

@@ -818,6 +818,8 @@ export default function ReverseWorkspace({ projectId }: { projectId: string }) {
   const safeSliceEnd = clamp(sliceEnd, 0, maxSlice);
   const displayStart = Math.min(safeSliceStart, safeSliceEnd);
   const displayEnd = Math.max(safeSliceStart, safeSliceEnd);
+  const rangeStartPercent = maxSlice > 0 ? (displayStart / maxSlice) * 100 : 0;
+  const rangeEndPercent = maxSlice > 0 ? (displayEnd / maxSlice) * 100 : 0;
   const selectedDisplay = displayOptions.find((item) => item.id === displayLevel) ?? displayOptions[0];
   const selectedDicomOpacity = dicomOpacityOptions.find((item) => item.id === dicomOpacityLevel) ?? dicomOpacityOptions[0];
   const preloadPoints = [0.2, 0.4, 0.6, 0.8, 1].map((ratio) => clamp(Math.max(0, Math.round((project?.dicomCount ?? 1) * ratio) - 1), 0, maxSlice));
@@ -924,30 +926,43 @@ export default function ReverseWorkspace({ projectId }: { projectId: string }) {
                 {displayStart + 1} - {displayEnd + 1} / {project?.dicomCount ?? 0}
               </span>
             </div>
-            <label className="grid grid-cols-[76px_1fr_64px] items-center gap-3 text-[10px] font-bold text-slate-500">
-              起点
-              <input
-                type="range"
-                min="0"
-                max={maxSlice}
-                value={safeSliceStart}
-                onChange={(event) => setSliceStart(Number(event.target.value))}
-                className="accent-blue-600"
-              />
-              <span className="text-right font-mono">{safeSliceStart + 1}</span>
-            </label>
-            <label className="mt-2 grid grid-cols-[76px_1fr_64px] items-center gap-3 text-[10px] font-bold text-slate-500">
-              终点
-              <input
-                type="range"
-                min="0"
-                max={maxSlice}
-                value={safeSliceEnd}
-                onChange={(event) => setSliceEnd(Number(event.target.value))}
-                className="accent-blue-600"
-              />
-              <span className="text-right font-mono">{safeSliceEnd + 1}</span>
-            </label>
+            <div className="py-1">
+              <div className="relative h-10">
+                <div className="absolute inset-x-0 top-1/2 h-2 -translate-y-1/2 rounded-full bg-slate-200" />
+                <div
+                  className="absolute top-1/2 h-2 -translate-y-1/2 rounded-full bg-blue-600"
+                  style={{
+                    left: `${rangeStartPercent}%`,
+                    right: `${100 - rangeEndPercent}%`,
+                  }}
+                />
+                <input
+                  type="range"
+                  aria-label="DICOM 切片范围起点"
+                  min="0"
+                  max={maxSlice}
+                  value={safeSliceStart}
+                  onChange={(event) => setSliceStart(Number(event.target.value))}
+                  className="dicom-range-input"
+                  style={{ zIndex: safeSliceStart >= safeSliceEnd ? 5 : 4 }}
+                />
+                <input
+                  type="range"
+                  aria-label="DICOM 切片范围终点"
+                  min="0"
+                  max={maxSlice}
+                  value={safeSliceEnd}
+                  onChange={(event) => setSliceEnd(Number(event.target.value))}
+                  className="dicom-range-input"
+                  style={{ zIndex: safeSliceStart >= safeSliceEnd ? 4 : 5 }}
+                />
+              </div>
+              <div className="mt-1 grid grid-cols-3 text-[10px] font-bold text-slate-500">
+                <span>起点 {safeSliceStart + 1}</span>
+                <span className="text-center text-blue-600">范围</span>
+                <span className="text-right">终点 {safeSliceEnd + 1}</span>
+              </div>
+            </div>
             <p className="mt-3 text-[10px] leading-5 text-slate-400">
               显示范围支持 M-N，两个端点可双向调整；范围变化只改变可视化切片，不改变模型原始位姿。
             </p>