diff --git a/src/main/java/com/codechecker/cache/report/ReportBuilder.java b/src/main/java/com/codechecker/cache/report/ReportBuilder.java
index 1dc21c7..c8e1610 100644
--- a/src/main/java/com/codechecker/cache/report/ReportBuilder.java
+++ b/src/main/java/com/codechecker/cache/report/ReportBuilder.java
@@ -1,5 +1,6 @@
 package com.codechecker.cache.report;
 
+import com.codechecker.cache.diff.ChangeType;
 import com.codechecker.cache.diff.SchemaChange;
 import com.codechecker.cache.diff.Severity;
 
@@ -14,7 +15,7 @@ import java.util.Set;
 /**
  * 将 {@link CheckReport} 渲染为企微 Markdown / 控制台文本。
  * <ul>
- *   <li>企微：按 key 展示位置/类型/序列化骨架变更，不含字段明细，不分 P0/P1/P2</li>
+ *   <li>企微：按 key 展示位置/类型/序列化骨架变更；类型变更另附摘要行，不分 P0/P1/P2</li>
  *   <li>未解析 key 展示源码表达式 + 灰色「key 无法解析」提示</li>
  *   <li>多 key 优先拼成一条；超过企微上限则按 key 拆成多条</li>
  *   <li>CI：先打字段明细，再完整输出企微 Markdown（拆分后的每条）</li>
@@ -129,22 +130,84 @@ public class ReportBuilder {
         String newJson = nvl(kc.getNewSkeletonJson());
         Set<String> oldHighlight = SkeletonAnnotator.pathsForOldSkeleton(kc.getFieldDetails());
         Set<String> newGreen = SkeletonAnnotator.pathsForNewSkeleton(kc.getFieldDetails());
-        Set<String> newOrange = SkeletonAnnotator.pathsForTypeChanged(kc.getFieldDetails());
+        Set<String> typeGray = SkeletonAnnotator.pathsForTypeChanged(kc.getFieldDetails());
         String oldRendered = oldJson.isEmpty()
-                ? "" : "“" + SkeletonAnnotator.annotateOldForWecom(oldJson, oldHighlight) + "”";
+                ? "" : "“" + SkeletonAnnotator.annotateOldForWecom(oldJson, oldHighlight, typeGray) + "”";
         String newRendered = newJson.isEmpty()
-                ? "" : "“" + SkeletonAnnotator.annotateNewForWecom(newJson, newGreen, newOrange) + "”";
+                ? "" : "“" + SkeletonAnnotator.annotateNewForWecom(newJson, newGreen, typeGray) + "”";
         if (oldJson.isEmpty() && !newJson.isEmpty()) {
-            sb.append("  > **value 新增为：** ").append(newRendered).append("\n\n");
+            sb.append("  > **value 新增为：** ").append(newRendered).append('\n');
         } else if (!oldJson.isEmpty() && newJson.isEmpty()) {
-            sb.append("  > **value 原结构：** ").append(oldRendered).append("（已删除写入）\n\n");
+            sb.append("  > **value 原结构：** ").append(oldRendered).append("（已删除写入）\n");
         } else {
             sb.append("  > **value值由：** ").append(oldRendered).append('\n');
-            sb.append("  > **变更为：** ").append(newRendered).append("\n\n");
+            sb.append("  > **变更为：** ").append(newRendered).append('\n');
         }
+        appendTypeChangeSummary(sb, kc.getFieldDetails());
+        sb.append('\n');
         return sb.toString();
     }
 
+    /**
+     * 类型变更单独一行摘要，避免仅靠骨架颜色/占位难以识别。
+     * 例：{@code > **类型变更**: amount <font color="warning">BigDecimal → Integer</font>}
+     */
+    private void appendTypeChangeSummary(StringBuilder sb, List<SchemaChange> details) {
+        if (details == null || details.isEmpty()) {
+            return;
+        }
+        List<String> parts = new ArrayList<>();
+        for (SchemaChange c : details) {
+            if (c == null || c.getChangeType() != ChangeType.TYPE_CHANGED) {
+                continue;
+            }
+            String path = nvl(c.getFieldPath());
+            if (path.isEmpty()) {
+                continue;
+            }
+            String oldType = displayJavaType(c.getOldValue());
+            String newType = displayJavaType(c.getNewValue());
+            StringBuilder part = new StringBuilder();
+            // 字段名用普通文本（避免反引号被企微渲染成色块）
+            part.append(path);
+            if (!oldType.isEmpty() || !newType.isEmpty()) {
+                part.append(" <font color=\"warning\">")
+                        .append(oldType.isEmpty() ? "?" : oldType)
+                        .append(" → ")
+                        .append(newType.isEmpty() ? "?" : newType)
+                        .append("</font>");
+            }
+            parts.add(part.toString());
+        }
+        if (parts.isEmpty()) {
+            return;
+        }
+        sb.append("  > **类型变更**: ");
+        for (int i = 0; i < parts.size(); i++) {
+            if (i > 0) {
+                sb.append("；");
+            }
+            sb.append(parts.get(i));
+        }
+        sb.append('\n');
+    }
+
+    /** 将 {@code BigDecimal/NUMBER} 转为展示用 {@code BigDecimal}。 */
+    private static String displayJavaType(String typeLabel) {
+        if (typeLabel == null) {
+            return "";
+        }
+        String s = typeLabel.trim();
+        if (s.isEmpty()) {
+            return "";
+        }
+        int slash = s.indexOf('/');
+        if (slash > 0) {
+            s = s.substring(0, slash).trim();
+        }
+        return s;
+    }
+
     /**
      * Key 行：展示解析后的模式或未解析时的源码表达式；未解析时追加灰色提示。
      * 反引号仅包裹 key 文本，避免与加粗/颜色嵌套冲突。
@@ -160,6 +223,7 @@ public class ReportBuilder {
         sb.append("- Key --> `").append(keyText).append('`');
         if (unresolved) {
             sb.append(" <font color=\"comment\">（key 无法解析）</font>");
+//            sb.append(" （key 无法解析）");
         }
         sb.append('\n');
     }
diff --git a/src/main/java/com/codechecker/cache/report/SkeletonAnnotator.java b/src/main/java/com/codechecker/cache/report/SkeletonAnnotator.java
index 4ccb811..f2003ca 100644
--- a/src/main/java/com/codechecker/cache/report/SkeletonAnnotator.java
+++ b/src/main/java/com/codechecker/cache/report/SkeletonAnnotator.java
@@ -15,22 +15,24 @@ import java.util.Set;
  *   <li>删除字段 → 旧骨架，橙色 {@code warning}</li>
  *   <li>新增字段 / 新增包装层 → 新骨架，绿色 {@code info}</li>
  *   <li>路径迁移 → 旧路径橙、新路径绿</li>
- *   <li>类型变更 → 新旧骨架均为橙色 {@code warning}（提高识别度）</li>
+ *   <li>类型变更（修改类）→ 新旧骨架均为灰色 {@code comment}</li>
  * </ul>
  */
 final class SkeletonAnnotator {
 
-    /** 企微橙：删除 / 类型变更 / 旧侧变更 */
+    /** 企微橙：删除 / 路径迁移旧侧 */
     static final String COLOR_REMOVE = "warning";
     /** 企微绿：新增 / 新侧路径迁移 */
     static final String COLOR_ADD = "info";
+    /** 企微灰：类型变更（修改类） */
+    static final String COLOR_TYPE = "comment";
 
     private static final String FONT_CLOSE = "</font>";
 
     private SkeletonAnnotator() {
     }
 
-    /** 旧骨架应橙色标注的路径：删除、路径迁移旧侧、类型变更。 */
+    /** 旧骨架应橙色标注的路径：删除、路径迁移旧侧（不含类型变更）。 */
     static Set<String> pathsForOldSkeleton(List<SchemaChange> details) {
         Set<String> paths = new LinkedHashSet<>();
         if (details == null) {
@@ -40,8 +42,7 @@ final class SkeletonAnnotator {
             if (c == null || c.getChangeType() == null) {
                 continue;
             }
-            if (c.getChangeType() == ChangeType.FIELD_REMOVED
-                    || c.getChangeType() == ChangeType.TYPE_CHANGED) {
+            if (c.getChangeType() == ChangeType.FIELD_REMOVED) {
                 addIfPresent(paths, c.getFieldPath());
             } else if (c.getChangeType() == ChangeType.FIELD_PATH_MOVED) {
                 addIfPresent(paths, c.getOldValue());
@@ -73,7 +74,7 @@ final class SkeletonAnnotator {
         return paths;
     }
 
-    /** 新骨架应橙色标注的路径：类型变更（与旧侧同色，便于识别）。 */
+    /** 类型变更路径：新旧骨架均用灰色标注。 */
     static Set<String> pathsForTypeChanged(List<SchemaChange> details) {
         Set<String> paths = new LinkedHashSet<>();
         if (details == null) {
@@ -88,30 +89,35 @@ final class SkeletonAnnotator {
     }
 
     /**
-     * 标注旧骨架改动字段（删除 / 类型变更 → 橙色）。
+     * 标注旧骨架：删除等橙色；类型变更灰色。
      */
-    static String annotateOldForWecom(String json, Set<String> highlightPaths) {
-        return annotateForWecom(json, highlightPaths, COLOR_REMOVE);
+    static String annotateOldForWecom(String json, Set<String> orangePaths) {
+        return annotateOldForWecom(json, orangePaths, null);
+    }
+
+    static String annotateOldForWecom(String json, Set<String> orangePaths, Set<String> grayPaths) {
+        String result = annotateForWecom(json, grayPaths, COLOR_TYPE);
+        return annotateForWecom(result, orangePaths, COLOR_REMOVE);
     }
 
     /**
-     * 标注新骨架：类型变更先着橙色，其余新增着绿色。
+     * 标注新骨架：类型变更灰色，新增绿色。
      */
     static String annotateNewForWecom(String json, Set<String> greenPaths) {
         return annotateNewForWecom(json, greenPaths, null);
     }
 
     /**
-     * 标注新骨架改动字段（类型变更 → 橙色；新增 / 迁移新侧 → 绿色）。
+     * 标注新骨架改动字段（类型变更 → 灰色；新增 / 迁移新侧 → 绿色）。
      */
-    static String annotateNewForWecom(String json, Set<String> greenPaths, Set<String> orangePaths) {
-        String result = annotateForWecom(json, orangePaths, COLOR_REMOVE);
+    static String annotateNewForWecom(String json, Set<String> greenPaths, Set<String> grayTypePaths) {
+        String result = annotateForWecom(json, grayTypePaths, COLOR_TYPE);
         return annotateForWecom(result, greenPaths, COLOR_ADD);
     }
 
     /**
      * 仅标注改动字段：其余正文保持普通文本。
-     * 改动片段格式：{@code <font color="warning|info">"field":value</font>}
+     * 改动片段格式：{@code <font color="warning|info|comment">"field":value</font>}
      */
     static String annotateForWecom(String json, Set<String> highlightPaths) {
         return annotateForWecom(json, highlightPaths, COLOR_REMOVE);
diff --git a/src/test/java/com/codechecker/cache/report/ReportBuilderTest.java b/src/test/java/com/codechecker/cache/report/ReportBuilderTest.java
index 35b8a1c..107c4ca 100644
--- a/src/test/java/com/codechecker/cache/report/ReportBuilderTest.java
+++ b/src/test/java/com/codechecker/cache/report/ReportBuilderTest.java
@@ -112,7 +112,7 @@ class ReportBuilderTest {
     }
 
     @Test
-    void typeChangedHighlightedOrangeInBothSkeletons() {
+    void typeChangedHighlightedGrayInBothSkeletons() {
         SchemaChange typeChanged = new SchemaChange(ChangeType.TYPE_CHANGED);
         typeChanged.setFieldPath("amount");
         typeChanged.setOldValue("BigDecimal/NUMBER");
@@ -125,20 +125,22 @@ class ReportBuilderTest {
 
         Set<String> oldPaths = SkeletonAnnotator.pathsForOldSkeleton(details);
         Set<String> newGreen = SkeletonAnnotator.pathsForNewSkeleton(details);
-        Set<String> newOrange = SkeletonAnnotator.pathsForTypeChanged(details);
+        Set<String> typeGray = SkeletonAnnotator.pathsForTypeChanged(details);
 
-        assertEquals(Collections.singleton("amount"), oldPaths);
+        assertTrue(oldPaths.isEmpty());
         assertTrue(newGreen.isEmpty());
-        assertEquals(Collections.singleton("amount"), newOrange);
+        assertEquals(Collections.singleton("amount"), typeGray);
 
-        String oldMd = SkeletonAnnotator.annotateOldForWecom(oldJson, oldPaths);
-        String newMd = SkeletonAnnotator.annotateNewForWecom(newJson, newGreen, newOrange);
+        String oldMd = SkeletonAnnotator.annotateOldForWecom(oldJson, oldPaths, typeGray);
+        String newMd = SkeletonAnnotator.annotateNewForWecom(newJson, newGreen, typeGray);
 
-        assertTrue(oldMd.contains("<font color=\"warning\">\"amount\":0</font>"));
-        assertFalse(oldMd.contains("<font color=\"warning\">\"name\":\"\"</font>"));
-        assertTrue(newMd.contains("<font color=\"warning\">\"amount\":\"\"</font>"));
+        assertTrue(oldMd.contains("<font color=\"comment\">\"amount\":0</font>"));
+        assertFalse(oldMd.contains("<font color=\"warning\">\"amount\""));
+        assertFalse(oldMd.contains("<font color=\"comment\">\"name\":\"\"</font>"));
+        assertTrue(newMd.contains("<font color=\"comment\">\"amount\":\"\"</font>"));
         assertFalse(newMd.contains("<font color=\"info\">\"amount\""));
-        assertFalse(newMd.contains("<font color=\"warning\">\"name\":\"\"</font>"));
+        assertFalse(newMd.contains("<font color=\"warning\">\"amount\""));
+        assertFalse(newMd.contains("<font color=\"comment\">\"name\":\"\"</font>"));
 
         CheckReport report = baseReport();
         KeyStructureChange key = new KeyStructureChange();
@@ -157,9 +159,12 @@ class ReportBuilderTest {
         assertTrue(newSection > oldSection);
         String oldPart = md.substring(oldSection, newSection);
         String newPart = md.substring(newSection);
-        assertTrue(oldPart.contains("<font color=\"warning\">\"amount\":0</font>"));
-        assertTrue(newPart.contains("<font color=\"warning\">\"amount\":\"\"</font>"));
+        assertTrue(oldPart.contains("<font color=\"comment\">\"amount\":0</font>"));
+        assertTrue(newPart.contains("<font color=\"comment\">\"amount\":\"\"</font>"));
         assertFalse(newPart.contains("<font color=\"info\">\"amount\""));
+        assertFalse(oldPart.contains("<font color=\"warning\">\"amount\""));
+        assertTrue(md.contains("> **类型变更**: amount <font color=\"warning\">BigDecimal → String</font>"),
+                "应包含类型变更摘要行，实际 markdown:\n" + md);
     }
 
     @Test