diff --git a/src/components/page/components/email/MailDetail.vue b/src/components/page/components/email/MailDetail.vue
index 51ee67b..2313b7b 100644
--- a/src/components/page/components/email/MailDetail.vue
+++ b/src/components/page/components/email/MailDetail.vue
@@ -74,7 +74,7 @@
                 </div>
             </div>
 
-            <div class="mail-body-content" v-html="mailData.content_html"></div>
+            <div class="mail-body-content" v-html="mailBodyHtml"></div>
 
             <div v-if="mailData.attachments && mailData.attachments.length" class="attachment-section">
   <div class="attachment-header">
@@ -123,6 +123,7 @@
 
 <script>
 import Common from '@/components/common/common';
+import { normalizeEmailHtmlForInlineDisplay } from '@/utils/emailHtmlView';
 import JSZip from 'jszip';
 import { saveAs } from 'file-saver';
 import FilePreviewDialog from './FilePreviewDialog.vue';
@@ -159,9 +160,29 @@ export default {
             if (!this.mailData.attachments || !this.mailData.attachments.length) return '0B';
             const total = this.mailData.attachments.reduce((sum, f) => sum + (Number(f.size) || 0), 0);
             return this.formatFileSize(total);
+        },
+        /** 正文：兼容 content_html / body / html，纯文本时包一层 pre */
+        mailBodyHtml() {
+            const m = this.mailData || {};
+            let raw = m.content_html || m.body_html || m.html || m.body || m.content || '';
+            raw = normalizeEmailHtmlForInlineDisplay(raw);
+            if (raw) return raw;
+            const text = m.content_text;
+            if (text != null && String(text).trim() !== '') {
+                return `<pre class="mail-plain-pre">${this.escapeHtml(String(text))}</pre>`;
+            }
+            return '';
         }
     },
     methods: {
+        escapeHtml(text) {
+            if (text == null) return '';
+            return String(text)
+                .replace(/&/g, '&amp;')
+                .replace(/</g, '&lt;')
+                .replace(/>/g, '&gt;')
+                .replace(/"/g, '&quot;');
+        },
         scrollToAttachments() {
     // 1. 获取目标元素的 DOM
     const target = this.$el.querySelector('.attachment-section');
@@ -441,6 +462,15 @@ const res = await this.$api.post('api/email_client/getAttachment', {
     margin-bottom: 50px;
 }
 
+/* v-html 注入的正文无 scoped 属性，用 deep 命中内部的 pre */
+.mail-body-content >>> .mail-plain-pre {
+    margin: 0;
+    white-space: pre-wrap;
+    word-break: break-word;
+    font-family: inherit;
+    font-size: 14px;
+}
+
 /* 附件卡片 */
 .attachment-section {
     border-top: 1px solid #eee;
diff --git a/src/components/page/mailboxCollect.vue b/src/components/page/mailboxCollect.vue
index 6bac0f9..9fe87b1 100644
--- a/src/components/page/mailboxCollect.vue
+++ b/src/components/page/mailboxCollect.vue
@@ -109,7 +109,11 @@
         <div class="mail-content-panel" v-if="selectedAccount" v-loading="detailLoading">
             <template v-if="activeMailId && !detailLoading">
                 <div class="mail-page">
-                    <mail-detail v-if="detailMail" :mailData="detailMail" @close="closeDetail" />
+                    <mail-detail
+                        v-if="detailMail && String(detailMail.inbox_id || '') !== ''"
+                        :mailData="detailMail"
+                        @close="closeDetail"
+                    />
                 </div>
 								</template>
 
@@ -168,6 +172,7 @@ const API = {
     getAllJournal: 'api/Article/getJournal'
 };
 import MailDetail from '../../components/page/components/email/MailDetail.vue';
+import { normalizeEmailHtmlForInlineDisplay } from '@/utils/emailHtmlView';
 	export default {
 		data() {
 			return {
@@ -293,8 +298,14 @@ import MailDetail from '../../components/page/components/email/MailDetail.vue';
             this.$api
                 .post(API.getOneEmail, { j_email_id: jEmailId })
                 .then((res) => {
-                    const email = res && res.data ? res.data.email : null;
-                    if (res && res.code === 0 && email) {
+                    const raw = res && res.data != null ? res.data : null;
+                    const email =
+                        raw && typeof raw === 'object' && raw.email && typeof raw.email === 'object'
+                            ? raw.email
+                            : raw && typeof raw === 'object' && (raw.j_email_id != null || raw.smtp_user)
+                            ? raw
+                            : null;
+                    if (res && Number(res.code) === 0 && email) {
                         this.selectedAccount = email;
                         this.fetchData();
                         this.startInboxSse();
@@ -489,28 +500,103 @@ fetchLatestSingleMail(jEmailId, journalId) {
             this.currentFolder = f;
             this.activeMailId = null;
         },
-        selectMail(item,index) {
+        /** 接口 code 可能是数字 0 或字符串 "0" */
+        isEmailApiSuccess(res) {
+            if (!res || res.code === undefined || res.code === null) return false;
+            return Number(res.code) === 0;
+        },
+        escapeHtml(text) {
+            if (text == null) return '';
+            return String(text)
+                .replace(/&/g, '&amp;')
+                .replace(/</g, '&lt;')
+                .replace(/>/g, '&gt;')
+                .replace(/"/g, '&quot;');
+        },
+        /** 解析 getEmailDetail 返回体，统一 content 字段；失败时用列表行兜底 */
+        buildDetailMailFromResponse(res, item, inboxId) {
+            const ok = this.isEmailApiSuccess(res);
+            let d = res && res.data != null ? res.data : null;
+            if (d && typeof d === 'string') {
+                try {
+                    d = JSON.parse(d);
+                } catch (e) {
+                    d = null;
+                }
+            }
+            if (Array.isArray(d) && d.length) {
+                d = d[0];
+            }
+            if (ok && d && typeof d === 'object' && d.data && typeof d.data === 'object' && !d.content_html && !d.content_text) {
+                d = { ...d, ...d.data };
+            }
+            if (ok && (!d || typeof d !== 'object') && res && (res.content_html != null || res.content_text != null || res.subject != null)) {
+                d = { ...res };
+                delete d.code;
+                delete d.msg;
+                if (Object.prototype.hasOwnProperty.call(d, 'data')) delete d.data;
+            }
+            const inboxKey = String(inboxId);
+            const listSnippet = (item && item.content) || '';
+            if (!ok || !d || typeof d !== 'object') {
+                return {
+                    ...item,
+                    subject: (item && item.subject) || '',
+                    from_name: (item && item.from_name) || '',
+                    from_email: (item && item.email) || '',
+                    email_date: item && item.email_date,
+                    content_html: listSnippet,
+                    inbox_id: inboxKey,
+                    attachments: [],
+                    has_attachment: (item && item.has_attachment) || 0
+                };
+            }
+            const html = d.content_html || d.body_html || d.html || d.body || '';
+            const text = d.content_text || '';
+            let content_html =
+                html ||
+                (text ? `<pre class="mail-plain-pre">${this.escapeHtml(text)}</pre>` : '') ||
+                listSnippet;
+            if (content_html && typeof content_html === 'string' && /^<!DOCTYPE|^<\s*html[\s>]/i.test(content_html.trim())) {
+                const normalized = normalizeEmailHtmlForInlineDisplay(content_html);
+                if (normalized && normalized.trim()) content_html = normalized;
+            }
+            return {
+                ...item,
+                ...d,
+                content_html,
+                inbox_id: inboxKey,
+                attachments: []
+            };
+        },
+        selectMail(item, index) {
             this.activeMailId = item.id;
             this.detailLoading = true;
+            this.detailMail = {};
             const inboxId = item.inbox_id || item.id;
             this.$api
                 .post(API.getEmailDetail, { inbox_id: inboxId })
                 .then((res) => {
-                    const d = res && res.data;
-                    if (res && res.code === 0 && d) {
-                        this.detailMail = { ...d, inbox_id: String(inboxId), attachments: [] };
-                        item.state = 0;
-                        this.displayList[index].is_read = d.is_read;
-                        if (Number(d.has_attachment) === 1) {
-                            this.fetchAttachments(String(inboxId));
-                        } else {
-                            this.detailLoading = false;
+                    try {
+                        const merged = this.buildDetailMailFromResponse(res, item, inboxId);
+                        this.detailMail = merged;
+                        if (item) item.state = 0;
+                        const row = this.displayList[index];
+                        if (row && merged && merged.is_read !== undefined && merged.is_read !== null) {
+                            this.$set(row, 'is_read', merged.is_read);
                         }
-                    } else {
-                        this.detailLoading = false;
+                        if (Number(merged.has_attachment) === 1) {
+                            this.fetchAttachments(String(inboxId));
+                            return;
+                        }
+                    } catch (e) {
+                        console.error(e);
+                        this.detailMail = this.buildDetailMailFromResponse(null, item, inboxId);
                     }
+                    this.detailLoading = false;
                 })
                 .catch(() => {
+                    this.detailMail = this.buildDetailMailFromResponse(null, item, inboxId);
                     this.detailLoading = false;
                 });
         },
diff --git a/src/utils/emailHtmlView.js b/src/utils/emailHtmlView.js
new file mode 100644
index 0000000..73ac000
--- /dev/null
+++ b/src/utils/emailHtmlView.js
@@ -0,0 +1,26 @@
+/**
+ * 将完整 HTML 邮件转为适合 div[v-html] 的片段：
+ * 取 body.innerHTML，并前置 head 内 <style>，避免版式与改版前不一致。
+ */
+export function normalizeEmailHtmlForInlineDisplay(html) {
+    if (!html || typeof html !== 'string') return '';
+    const t = html.trim();
+    if (!/^<!DOCTYPE|^<\s*html[\s>]/i.test(t)) return html;
+    try {
+        const doc = new DOMParser().parseFromString(html, 'text/html');
+        const body = doc && doc.body;
+        if (!body) return html;
+        const inner = body.innerHTML;
+        if (!inner || !inner.trim()) return html;
+        let headInject = '';
+        const head = doc.head;
+        if (head) {
+            head.querySelectorAll('style').forEach((node) => {
+                headInject += node.outerHTML;
+            });
+        }
+        return headInject + inner;
+    } catch (e) {
+        return html;
+    }
+}