diff --git a/business-css/src/main/java/com/yfd/business/css/service/impl/ProjectServiceImpl.java b/business-css/src/main/java/com/yfd/business/css/service/impl/ProjectServiceImpl.java
index becbba6..5d2f1e3 100644
--- a/business-css/src/main/java/com/yfd/business/css/service/impl/ProjectServiceImpl.java
+++ b/business-css/src/main/java/com/yfd/business/css/service/impl/ProjectServiceImpl.java
@@ -666,6 +666,10 @@ public class ProjectServiceImpl
                     if (dtype != null && !dtype.isEmpty()) {
                         state.put("deviceType", dtype);
                     }
+                    //注入设备size属性
+                    // ---------- 新增：注入 size ---------- 
+                    injectDeviceSize(d, state);
+
                     Map<String, Double> sdev = devStatic.getOrDefault(did, Map.of());
                     for (Map.Entry<String, Double> e : sdev.entrySet()) state.put(e.getKey(), e.getValue());
                     Map<String, Object> infl = devInfluence.getOrDefault(did, Map.of());
@@ -749,6 +753,36 @@ public class ProjectServiceImpl
         }
     }
 
+    public void injectDeviceSize(Device device, Map<String, Object> state) {
+    try {
+        String sizeJson = device.getSize(); // Device.size
+        if (sizeJson != null && !sizeJson.isBlank()) {
+            ObjectMapper objectMapper = new ObjectMapper();
+            JsonNode sizeNode = objectMapper.readTree(sizeJson);
+            
+            // 读取 diameter
+            if (sizeNode.has("outer_diameter")) {
+                double diameter = sizeNode.get("outer_diameter").asDouble();
+                state.put("diameter", diameter);
+            }
+
+            if (sizeNode.has("diameter")) {
+                double diameter = sizeNode.get("diameter").asDouble();
+                state.put("diameter", diameter);
+            }
+            
+            // 读取 height
+            if (sizeNode.has("height")) {
+                double height = sizeNode.get("height").asDouble();
+                state.put("height", height);
+            }
+        }
+    } catch (Exception e) {
+        // 出错可以记录日志
+        System.err.println("解析Device.size失败：" + e.getMessage());
+    }
+}
+
     private void parseDeviceStaticsAndInfluences(JsonNode root,
                                                  Map<String, Map<String, Double>> devStatic,
                                                  Map<String, Map<String, Object>> devInfluence,
@@ -1267,7 +1301,7 @@ public class ProjectServiceImpl
         System.out.println("params="+params);
         System.out.println("jsonParams="+jsonParams);
 
-        jsonParams ="{\"data\":{\"frames\":[{\"devices\":{\"dev-003-uuid\":{\"deviceType\":\"AnnularTank\",\"diameter\":160.0,\"pu_isotope\":0.13,\"pu_concentration\":20.0,\"height\":160.0},\"dev-002-uuid\":{\"deviceType\":\"CylindricalTank\",\"diameter\":20.0,\"u_enrichment\":0.01,\"height\":20.0,\"u_concentration\":20.0}},\"step\":0,\"time\":0},{\"devices\":{\"dev-003-uuid\":{\"deviceType\":\"AnnularTank\",\"diameter\":170.0,\"pu_isotope\":0.13,\"pu_concentration\":20.0,\"height\":170.0},\"dev-002-uuid\":{\"deviceType\":\"CylindricalTank\",\"diameter\":50.0,\"u_enrichment\":0.01,\"height\":50.0,\"u_concentration\":20.0}},\"step\":1,\"time\":2},{\"devices\":{\"dev-003-uuid\":{\"deviceType\":\"AnnularTank\",\"diameter\":180.0,\"pu_isotope\":0.13,\"pu_concentration\":20.0,\"height\":180.0},\"dev-002-uuid\":{\"deviceType\":\"CylindricalTank\",\"diameter\":70.0,\"u_enrichment\":0.01,\"height\":70.0,\"u_concentration\":20.0}},\"step\":2,\"time\":4},{\"devices\":{\"dev-003-uuid\":{\"deviceType\":\"AnnularTank\",\"diameter\":190.0,\"pu_isotope\":0.13,\"pu_concentration\":20.0,\"height\":190.0},\"dev-002-uuid\":{\"deviceType\":\"CylindricalTank\",\"diameter\":100.0,\"u_enrichment\":0.01,\"height\":100.0,\"u_concentration\":20.0}},\"step\":3,\"time\":6},{\"devices\":{\"dev-003-uuid\":{\"deviceType\":\"AnnularTank\",\"diameter\":200.0,\"pu_isotope\":0.13,\"pu_concentration\":20.0,\"height\":200.0},\"dev-002-uuid\":{\"deviceType\":\"CylindricalTank\",\"diameter\":120.0,\"u_enrichment\":0.01,\"height\":120.0,\"u_concentration\":20.0}},\"step\":4,\"time\":8},{\"devices\":{\"dev-003-uuid\":{\"deviceType\":\"AnnularTank\",\"diameter\":210.0,\"pu_isotope\":0.13,\"pu_concentration\":20.0,\"height\":210.0},\"dev-002-uuid\":{\"deviceType\":\"CylindricalTank\",\"diameter\":150.0,\"u_enrichment\":0.01,\"height\":150.0,\"u_concentration\":20.0}},\"step\":5,\"time\":10},{\"devices\":{\"dev-003-uuid\":{\"deviceType\":\"AnnularTank\",\"diameter\":220.0,\"pu_isotope\":0.13,\"pu_concentration\":20.0,\"height\":220.0},\"dev-002-uuid\":{\"deviceType\":\"CylindricalTank\",\"diameter\":200.0,\"u_enrichment\":0.01,\"height\":200.0,\"u_concentration\":20.0}},\"step\":6,\"time\":12},{\"devices\":{\"dev-003-uuid\":{\"deviceType\":\"AnnularTank\",\"diameter\":230.0,\"pu_isotope\":0.13,\"pu_concentration\":20.0,\"height\":230.0},\"dev-002-uuid\":{\"deviceType\":\"CylindricalTank\",\"diameter\":220.0,\"u_enrichment\":0.01,\"height\":220.0,\"u_concentration\":20.0}},\"step\":7,\"time\":14},{\"devices\":{\"dev-003-uuid\":{\"deviceType\":\"AnnularTank\",\"diameter\":240.0,\"pu_isotope\":0.13,\"pu_concentration\":20.0,\"height\":240.0},\"dev-002-uuid\":{\"deviceType\":\"CylindricalTank\",\"diameter\":250.0,\"u_enrichment\":0.01,\"height\":250.0,\"u_concentration\":20.0}},\"step\":8,\"time\":16},{\"devices\":{\"dev-003-uuid\":{\"deviceType\":\"AnnularTank\",\"diameter\":250.0,\"pu_isotope\":0.13,\"pu_concentration\":20.0,\"height\":250.0},\"dev-002-uuid\":{\"deviceType\":\"CylindricalTank\",\"diameter\":300.0,\"u_enrichment\":0.01,\"height\":300.0,\"u_concentration\":20.0}},\"step\":9,\"time\":18}],\"generated\":{\"snapshots\":20,\"events\":2},\"projectId\":\"proj-0001-uuid\",\"scenarioId\":\"scen-001-uuid\",\"issues\":[]}}";
+        // jsonParams ="{\"data\":{\"frames\":[{\"devices\":{\"dev-003-uuid\":{\"deviceType\":\"AnnularTank\",\"diameter\":160.0,\"pu_isotope\":0.13,\"pu_concentration\":20.0,\"height\":160.0},\"dev-002-uuid\":{\"deviceType\":\"CylindricalTank\",\"diameter\":20.0,\"u_enrichment\":0.01,\"height\":20.0,\"u_concentration\":20.0}},\"step\":0,\"time\":0},{\"devices\":{\"dev-003-uuid\":{\"deviceType\":\"AnnularTank\",\"diameter\":170.0,\"pu_isotope\":0.13,\"pu_concentration\":20.0,\"height\":170.0},\"dev-002-uuid\":{\"deviceType\":\"CylindricalTank\",\"diameter\":50.0,\"u_enrichment\":0.01,\"height\":50.0,\"u_concentration\":20.0}},\"step\":1,\"time\":2},{\"devices\":{\"dev-003-uuid\":{\"deviceType\":\"AnnularTank\",\"diameter\":180.0,\"pu_isotope\":0.13,\"pu_concentration\":20.0,\"height\":180.0},\"dev-002-uuid\":{\"deviceType\":\"CylindricalTank\",\"diameter\":70.0,\"u_enrichment\":0.01,\"height\":70.0,\"u_concentration\":20.0}},\"step\":2,\"time\":4},{\"devices\":{\"dev-003-uuid\":{\"deviceType\":\"AnnularTank\",\"diameter\":190.0,\"pu_isotope\":0.13,\"pu_concentration\":20.0,\"height\":190.0},\"dev-002-uuid\":{\"deviceType\":\"CylindricalTank\",\"diameter\":100.0,\"u_enrichment\":0.01,\"height\":100.0,\"u_concentration\":20.0}},\"step\":3,\"time\":6},{\"devices\":{\"dev-003-uuid\":{\"deviceType\":\"AnnularTank\",\"diameter\":200.0,\"pu_isotope\":0.13,\"pu_concentration\":20.0,\"height\":200.0},\"dev-002-uuid\":{\"deviceType\":\"CylindricalTank\",\"diameter\":120.0,\"u_enrichment\":0.01,\"height\":120.0,\"u_concentration\":20.0}},\"step\":4,\"time\":8},{\"devices\":{\"dev-003-uuid\":{\"deviceType\":\"AnnularTank\",\"diameter\":210.0,\"pu_isotope\":0.13,\"pu_concentration\":20.0,\"height\":210.0},\"dev-002-uuid\":{\"deviceType\":\"CylindricalTank\",\"diameter\":150.0,\"u_enrichment\":0.01,\"height\":150.0,\"u_concentration\":20.0}},\"step\":5,\"time\":10},{\"devices\":{\"dev-003-uuid\":{\"deviceType\":\"AnnularTank\",\"diameter\":220.0,\"pu_isotope\":0.13,\"pu_concentration\":20.0,\"height\":220.0},\"dev-002-uuid\":{\"deviceType\":\"CylindricalTank\",\"diameter\":200.0,\"u_enrichment\":0.01,\"height\":200.0,\"u_concentration\":20.0}},\"step\":6,\"time\":12},{\"devices\":{\"dev-003-uuid\":{\"deviceType\":\"AnnularTank\",\"diameter\":230.0,\"pu_isotope\":0.13,\"pu_concentration\":20.0,\"height\":230.0},\"dev-002-uuid\":{\"deviceType\":\"CylindricalTank\",\"diameter\":220.0,\"u_enrichment\":0.01,\"height\":220.0,\"u_concentration\":20.0}},\"step\":7,\"time\":14},{\"devices\":{\"dev-003-uuid\":{\"deviceType\":\"AnnularTank\",\"diameter\":240.0,\"pu_isotope\":0.13,\"pu_concentration\":20.0,\"height\":240.0},\"dev-002-uuid\":{\"deviceType\":\"CylindricalTank\",\"diameter\":250.0,\"u_enrichment\":0.01,\"height\":250.0,\"u_concentration\":20.0}},\"step\":8,\"time\":16},{\"devices\":{\"dev-003-uuid\":{\"deviceType\":\"AnnularTank\",\"diameter\":250.0,\"pu_isotope\":0.13,\"pu_concentration\":20.0,\"height\":250.0},\"dev-002-uuid\":{\"deviceType\":\"CylindricalTank\",\"diameter\":300.0,\"u_enrichment\":0.01,\"height\":300.0,\"u_concentration\":20.0}},\"step\":9,\"time\":18}],\"generated\":{\"snapshots\":20,\"events\":2},\"projectId\":\"proj-0001-uuid\",\"scenarioId\":\"scen-001-uuid\",\"issues\":[]}}";
 
         Map<String, List<DeviceStepInfo>> groupedDevices = DeviceDataParser.parseAndGroupDeviceData(jsonParams);
         if (groupedDevices == null || groupedDevices.isEmpty()) {