diff --git a/src/main/java/com/codechecker/cache/report/ReportBuilder.java b/src/main/java/com/codechecker/cache/report/ReportBuilder.java
index 2952649..7b6b009 100644
--- a/src/main/java/com/codechecker/cache/report/ReportBuilder.java
+++ b/src/main/java/com/codechecker/cache/report/ReportBuilder.java
@@ -57,9 +57,9 @@ public class ReportBuilder {
             Set<String> oldHighlight = SkeletonAnnotator.pathsForOldSkeleton(kc.getFieldDetails());
             Set<String> newHighlight = SkeletonAnnotator.pathsForNewSkeleton(kc.getFieldDetails());
             String oldRendered = oldJson.isEmpty()
-                    ? "" : SkeletonAnnotator.annotateAsCodeBlock(oldJson, oldHighlight);
+                    ? "" : "“" + SkeletonAnnotator.annotateForWecom(oldJson, oldHighlight) + "”";
             String newRendered = newJson.isEmpty()
-                    ? "" : SkeletonAnnotator.annotateAsCodeBlock(newJson, newHighlight);
+                    ? "" : "“" + SkeletonAnnotator.annotateForWecom(newJson, newHighlight) + "”";
             if (oldJson.isEmpty() && !newJson.isEmpty()) {
                 sb.append("  value 新增为 ").append(newRendered).append("\n\n");
             } else if (!oldJson.isEmpty() && newJson.isEmpty()) {
@@ -73,13 +73,14 @@ public class ReportBuilder {
     }
 
     /**
-     * Key 行：Key --> + 橙红色 key（企微 warning）。
-     * 末尾加零宽空格，避免 key 中的 * 干扰后续 markdown。
+     * Key 行：warning 颜色 + 行内代码 + 加粗。
+     * 企微支持混用；代码样式可能略压过加粗，但颜色与代码块会稳定生效。
+     * key 包在反引号内，避免路径中的 {@code *} 干扰 markdown。
      */
     private void appendKeyLine(StringBuilder sb, String keyPattern) {
-        sb.append("- Key --> <font color=\"warning\">")
+        sb.append("- Key --> <font color=\"warning\">**`")
                 .append(nvl(keyPattern))
-                .append("\u200b</font>\n");
+                .append("`**</font>\n");
     }
 
     /**
diff --git a/src/main/java/com/codechecker/cache/report/SkeletonAnnotator.java b/src/main/java/com/codechecker/cache/report/SkeletonAnnotator.java
index 33a3bf4..a448770 100644
--- a/src/main/java/com/codechecker/cache/report/SkeletonAnnotator.java
+++ b/src/main/java/com/codechecker/cache/report/SkeletonAnnotator.java
@@ -10,7 +10,7 @@ import java.util.List;
 import java.util.Set;
 
 /**
- * 在骨架 JSON 中为改动字段加企微 warning 标注。
+ * 在骨架 JSON 中为改动字段加企微 warning 标注（仅改动片段染色，其余明文）。
  * <ul>
  *   <li>删除字段 → 标在旧骨架</li>
  *   <li>新增字段 / 新增包装层 → 标在新骨架</li>
@@ -66,15 +66,19 @@ final class SkeletonAnnotator {
     }
 
     /**
-     * 标注路径对应的 {@code "field":value} 片段，并包成可与代码块混排的企微 Markdown。
-     * 企微代码块内不解析 font，故整段用反引号分段包裹，改动项单独用 warning+反引号。
+     * 仅标注改动字段：其余正文保持普通文本（避免整段包反引号导致企微整段变红）。
+     * 改动片段格式：{@code <font color="warning">"field":value</font>}
      */
-    static String annotateAsCodeBlock(String json, Set<String> highlightPaths) {
+    static String annotateForWecom(String json, Set<String> highlightPaths) {
         if (json == null || json.isEmpty()) {
-            return "``";
+            return "";
         }
-        String annotated = annotate(json, highlightPaths);
-        return toMixedCodeMarkdown(annotated);
+        return annotate(json, highlightPaths);
+    }
+
+    /** @deprecated 使用 {@link #annotateForWecom}，勿再整段包代码块 */
+    static String annotateAsCodeBlock(String json, Set<String> highlightPaths) {
+        return annotateForWecom(json, highlightPaths);
     }
 
     static String annotate(String json, Set<String> highlightPaths) {
@@ -90,57 +94,6 @@ final class SkeletonAnnotator {
         return result;
     }
 
-    /**
-     * 将已含 {@code <font>} 的字符串拆成：普通段走反引号代码块，改动段走 warning+反引号。
-     */
-    static String toMixedCodeMarkdown(String annotated) {
-        if (annotated == null || annotated.isEmpty()) {
-            return "``";
-        }
-        if (!annotated.contains(FONT_OPEN)) {
-            return "`" + annotated + "`";
-        }
-        StringBuilder out = new StringBuilder();
-        int i = 0;
-        boolean inCode = false;
-        while (i < annotated.length()) {
-            int start = annotated.indexOf(FONT_OPEN, i);
-            if (start < 0) {
-                if (!inCode) {
-                    out.append('`');
-                    inCode = true;
-                }
-                out.append(annotated.substring(i));
-                out.append('`');
-                return out.toString();
-            }
-            if (start > i) {
-                if (!inCode) {
-                    out.append('`');
-                    inCode = true;
-                }
-                out.append(annotated, i, start);
-                out.append('`');
-                inCode = false;
-            } else if (inCode) {
-                out.append('`');
-                inCode = false;
-            }
-            int contentStart = start + FONT_OPEN.length();
-            int end = annotated.indexOf(FONT_CLOSE, contentStart);
-            if (end < 0) {
-                if (!inCode) {
-                    out.append('`');
-                }
-                out.append(annotated.substring(start)).append('`');
-                return out.toString();
-            }
-            String frag = annotated.substring(contentStart, end);
-            out.append(FONT_OPEN).append('`').append(frag).append('`').append(FONT_CLOSE);
-            i = end + FONT_CLOSE.length();
-        }
-        return out.toString();
-    }
 
     private static void addIfPresent(Set<String> paths, String path) {
         if (path != null && !path.trim().isEmpty()) {
diff --git a/src/test/java/com/codechecker/cache/report/ReportBuilderTest.java b/src/test/java/com/codechecker/cache/report/ReportBuilderTest.java
index 80ffb73..254e904 100644
--- a/src/test/java/com/codechecker/cache/report/ReportBuilderTest.java
+++ b/src/test/java/com/codechecker/cache/report/ReportBuilderTest.java
@@ -16,7 +16,7 @@ import static org.junit.jupiter.api.Assertions.assertTrue;
 class ReportBuilderTest {
 
     @Test
-    void wecomMarkdownShowsSkeletonWithoutSeverityAndLocation() {
+    void onlyAddedFieldsHighlightedInNewSkeletonNotWholeJson() {
         CheckReport report = new CheckReport();
         report.setRepository("jnpf-java-cloud");
         report.setBranch("code/redis_change_detection_v1.0");
@@ -40,12 +40,14 @@ class ReportBuilderTest {
         report.getChanges().add(addedMsg);
         report.getChanges().add(addedErr);
 
+        String oldJson = "{\"taskId\":\"\",\"status\":\"\",\"progress\":{\"totalTenants\":0}}";
+        String newJson = "{\"taskId\":\"\",\"status\":\"\",\"progress\":{\"totalTenants\":0},"
+                + "\"message\":\"\",\"lastError\":\"\"}";
+
         KeyStructureChange key = new KeyStructureChange();
         key.setKeyPattern("saas:period-config:migration:current");
-        key.setOldSkeletonJson(
-                "{\"taskId\":\"\",\"status\":\"\",\"progress\":{\"totalTenants\":0}}");
-        key.setNewSkeletonJson(
-                "{\"taskId\":\"\",\"status\":\"\",\"progress\":{\"totalTenants\":0},\"message\":\"\",\"lastError\":\"\"}");
+        key.setOldSkeletonJson(oldJson);
+        key.setNewSkeletonJson(newJson);
         key.setSeverity(Severity.P1);
         key.getFieldDetails().add(addedMsg);
         key.getFieldDetails().add(addedErr);
@@ -53,20 +55,27 @@ class ReportBuilderTest {
 
         String md = new ReportBuilder("[缓存结构变更]").toMarkdown(report);
 
-        assertTrue(md.startsWith("## [缓存结构变更] jnpf-java-cloud"));
-        assertTrue(md.contains("- Key --> <font color=\"warning\">saas:period-config:migration:current\u200b</font>"));
-        assertTrue(md.contains("value 值从"));
-        assertTrue(md.contains("变更为"));
-        // 新增字段仅在新骨架中 warning 标注
-        assertTrue(md.contains("<font color=\"warning\">`\"message\":\"\"`</font>"));
-        assertTrue(md.contains("<font color=\"warning\">`\"lastError\":\"\"`</font>"));
-        // 旧骨架不应出现这两个字段的 warning
+        assertTrue(md.contains(
+                "- Key --> <font color=\"warning\">**`saas:period-config:migration:current`**</font>"));
+
         int oldSection = md.indexOf("value 值从");
         int newSection = md.indexOf("变更为");
         String oldPart = md.substring(oldSection, newSection);
-        assertFalse(oldPart.contains("<font color=\"warning\">`\"message\":\"\"`</font>"));
+        String newPart = md.substring(newSection);
+
+        // 旧骨架：无 warning，且不能整段被反引号包裹
+        assertFalse(oldPart.contains("<font color=\"warning\">"));
+        assertFalse(oldPart.contains("`" + oldJson + "`"));
+        assertTrue(oldPart.contains(oldJson));
+
+        // 新骨架：仅新增字段带 warning，其余明文
+        assertTrue(newPart.contains("<font color=\"warning\">\"message\":\"\"</font>"));
+        assertTrue(newPart.contains("<font color=\"warning\">\"lastError\":\"\"</font>"));
+        assertTrue(newPart.contains("\"taskId\":\"\""));
+        assertFalse(newPart.contains("<font color=\"warning\">\"taskId\":\"\"</font>"));
+        // 禁止整段代码块
+        assertFalse(newPart.contains("`" + newJson));
         assertFalse(md.contains("### P0"));
-        assertFalse(md.contains("位置"));
     }
 
     @Test
@@ -83,11 +92,12 @@ class ReportBuilderTest {
         assertEquals(Collections.singleton("lastError"), oldPaths);
         assertTrue(newPaths.isEmpty());
 
-        String oldMd = SkeletonAnnotator.annotateAsCodeBlock(oldJson, oldPaths);
-        String newMd = SkeletonAnnotator.annotateAsCodeBlock(newJson, newPaths);
-        assertTrue(oldMd.contains("<font color=\"warning\">`\"lastError\":\"\"`</font>"));
-        assertFalse(newMd.contains("lastError"));
-        assertTrue(newMd.startsWith("`"));
+        String oldMd = SkeletonAnnotator.annotateForWecom(oldJson, oldPaths);
+        String newMd = SkeletonAnnotator.annotateForWecom(newJson, newPaths);
+        assertTrue(oldMd.contains("<font color=\"warning\">\"lastError\":\"\"</font>"));
+        assertFalse(oldMd.contains("<font color=\"warning\">\"taskId\":\"\"</font>"));
+        assertEquals(newJson, newMd);
+        assertFalse(newMd.startsWith("`"));
     }
 
     @Test
@@ -114,11 +124,9 @@ class ReportBuilderTest {
 
         String console = new ReportBuilder("[缓存结构变更]").toConsole(report);
         assertTrue(console.contains("======== 字段明细 ========"));
-        assertTrue(console.contains("**位置**: Foo#bar:1"));
         assertTrue(console.contains("**删除字段**: x"));
-        assertTrue(console.contains("======== 企微 Markdown ========"));
-        assertTrue(console.contains("value 值从"));
-        assertTrue(console.contains("<font color=\"warning\">`\"x\":\"\"`</font>"));
+        assertTrue(console.contains("<font color=\"warning\">\"x\":\"\"</font>"));
+        assertFalse(console.contains("`{\"x\":\"\"}`"));
     }
 
     @Test