diff --git a/admin/dashboard/blueprints/contacts.py b/admin/dashboard/blueprints/contacts.py
index faf9898..093d536 100644
--- a/admin/dashboard/blueprints/contacts.py
+++ b/admin/dashboard/blueprints/contacts.py
@@ -17,7 +17,6 @@ message_thread_pool = ThreadPoolExecutor(max_workers=10, thread_name_prefix="mes
 # 创建共享的事件循环
 shared_loop = None
 loop_lock = threading.Lock()
-_PROJECT_ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), "..", "..", ".."))
 _EMOJI_MD5_RE = re.compile(r'md5\s*=\s*[\"\']([0-9a-fA-F]{16,64})[\"\']', re.IGNORECASE)
 _EMOJI_TOTALLEN_RE = re.compile(r'(?:totallen|total_len|len)\s*=\s*[\"\'](\d+)[\"\']', re.IGNORECASE)
 
@@ -149,16 +148,33 @@ def _extract_emoji_meta(attachment_url: str, image_path: str):
     md5 = ""
     total_length = 0
 
-    md5_match = _EMOJI_MD5_RE.search(text)
-    if md5_match:
-        md5 = md5_match.group(1).lower()
-
-    len_match = _EMOJI_TOTALLEN_RE.search(text)
-    if len_match:
+    # 优先按 XML 结构解析，避免纯正则误命中其他字段。
+    if text.startswith("<"):
         try:
-            total_length = int(len_match.group(1))
+            root = ET.fromstring(text)
+            emoji_node = root.find(".//emoji")
+            if emoji_node is not None:
+                md5 = _safe_text(emoji_node.attrib.get("md5", "")).strip().lower()
+                for key in ("totallen", "total_len", "totalLen", "len"):
+                    value = _safe_text(emoji_node.attrib.get(key, "")).strip()
+                    if value.isdigit():
+                        total_length = int(value)
+                        break
         except Exception:
-            total_length = 0
+            pass
+
+    if not md5:
+        md5_match = _EMOJI_MD5_RE.search(text)
+        if md5_match:
+            md5 = md5_match.group(1).lower()
+
+    if total_length <= 0:
+        len_match = _EMOJI_TOTALLEN_RE.search(text)
+        if len_match:
+            try:
+                total_length = int(len_match.group(1))
+            except Exception:
+                total_length = 0
 
     if not md5 and image_path:
         filename = os.path.basename(_safe_text(image_path))
@@ -166,14 +182,6 @@ def _extract_emoji_meta(attachment_url: str, image_path: str):
         if re.fullmatch(r"[0-9a-fA-F]{16,64}", stem):
             md5 = stem.lower()
 
-    if total_length <= 0 and image_path and image_path.startswith("/static/"):
-        abs_path = os.path.join(_PROJECT_ROOT, image_path.lstrip("/").replace("/", os.sep))
-        if os.path.isfile(abs_path):
-            try:
-                total_length = int(os.path.getsize(abs_path))
-            except Exception:
-                total_length = 0
-
     return md5, total_length