feat: 图片工作台/镜头实验室/局部重绘/数字人/去水印页面UI优化

src/features/digital-human/DigitalHumanPage.tsx

@@ -567,7 +567,17 @@ function DigitalHumanPage({
                 </button>
               )}
               {resultVideoUrl && (
-                <div className="studio-result-actions studio-result-actions--with-clear">
+                <button type="button" className="studio-generate-btn" onClick={() => {
+                  setResultVideoUrl("");
+                  setActiveTaskId("");
+                  setTaskProgress(0);
+                  setNotice("已清空工作区");
+                }}>
+                  清空
+                </button>
+              )}
+              {resultVideoUrl && (
+                <div className="studio-result-actions">
                   <button type="button" onClick={() => void handleDownloadResult()} disabled={isDownloadingResult}>
                     <DownloadOutlined />
                     {isDownloadingResult ? "保存中" : "保存本地"}
@@ -576,14 +586,6 @@ function DigitalHumanPage({
                     <InboxOutlined />
                     {isSavingResultAsset ? "加入中" : "加入资产库"}
                   </button>
-                  <button type="button" onClick={() => {
-                    setResultVideoUrl("");
-                    setActiveTaskId("");
-                    setTaskProgress(0);
-                    setNotice("已清空工作区");
-                  }}>
-                    清空
-                  </button>
                 </div>
               )}
             </div>

src/features/image-workbench/ImageWorkbenchPage.tsx

@@ -787,7 +787,7 @@ function ImageWorkbenchPage({ initialTool = "workbench", onOpenMore, onSelectVie
               </div>
             ) : inpaintResultImages.length && activeTool === "inpaint" ? (
               <div className="image-workbench-inpaint-stage">
-                <img src={inpaintResultImages[0]} alt="重绘结果" style={{ maxWidth: "90%", maxHeight: "90%", borderRadius: 8, objectFit: "contain" }} />
+                <img src={inpaintResultImages[0]} alt="重绘结果" style={{ maxWidth: "95%", maxHeight: "95%", borderRadius: 8, objectFit: "contain" }} />
                 <div className="image-workbench-inpaint-bottom-bar">
                   <button type="button" className="image-workbench-inpaint-edit-btn" onClick={() => { setInpaintResultImages([]); setIsMaskEditing(true); setInpaintTool("brush"); setCanvasInitCounter((c) => c + 1); }}>
                     <HighlightOutlined /> 重新编辑遮罩

src/features/watermark-removal/WatermarkRemovalPage.tsx

@@ -356,13 +356,13 @@ function WatermarkRemovalPage({
             </p>
           </section>
 
-          <div className="image-workbench-actions">
+          <div className="image-workbench-actions watermark-removal-actions">
             <button type="button" className="image-workbench-primary" onClick={() => void handleStart()} disabled={isProcessing}>
               <DeleteOutlined />
-              {isProcessing ? "处理中" : "开始去水印"}
+              {isProcessing ? "处理中..." : "开始去水印"}
             </button>
             {isProcessing && (
-              <button type="button" className="image-workbench-cancel" onClick={handleCancel} style={{ marginTop: 6 }}>
+              <button type="button" className="image-workbench-cancel" onClick={handleCancel}>
                 取消
               </button>
             )}