diff --git a/dist/jhs-enhance.user.js b/dist/jhs-enhance.user.js
index 806f00d..9560d50 100644
--- a/dist/jhs-enhance.user.js
+++ b/dist/jhs-enhance.user.js
@@ -1253,6 +1253,15 @@ System.register("./__entry.js", ['jquery', 'localforage', 'toastify-js', 'blueim
       );
       insertStyle(mainCss);
       insertStyle(subtitleModalCss);
+        const isEligibleDmmCoverCode = (value) => {
+            const raw = String(value || "").trim().toUpperCase();
+            if (!/^[A-Z0-9]{2,10}-\d{1,6}$/.test(raw)) return false;
+            const code = raw.replace(/\s+/g, "-").toUpperCase();
+            if (!/^[A-Z0-9]{2,10}-\d{1,6}$/.test(code) || /^FC2-/.test(code)) return false;
+            if (/^\d{6}[-_]\d{2,3}$/.test(code)) return false;
+            if (/^(DUGA|MYWIFE|HEYZO|PACO|10MU|1PONDO|CARIBBEAN|CARIB|TOKYO|GACHI|REAL|JUKU|AKA|NTR)-/.test(code)) return false;
+            return true;
+        };
       window.$ = window.jQuery = $$1;
       if (typeof $$1.trim !== "function") {
           $$1.trim = function (text) {
@@ -10418,6 +10427,27 @@ ${err.stack}` : "");
           return qualityMap;
         }
         return null;
+      };
+        const fromJavxyCover = async (code) => {
+            const query = String(code || "").trim();
+            if (!query) return null;
+            for (const endpoint of JAVXY_ENDPOINTS) {
+                const params = new URLSearchParams({client: "laosiji-new"});
+                const apiUrl2 = `https://${endpoint.host}/covers/${encodeURIComponent(query)}?${params}`;
+                let r;
+                try {
+                    r = await gmHttp.get(apiUrl2, null, {
+                        "Accept": "application/json,text/plain,*/*",
+                        "X-Javxy-Token": JAVXY_TOKEN
+                    }, {timeout: 15e3});
+                } catch (e) {
+                    continue;
+                }
+                if (!r) continue;
+                if ((r == null ? void 0 : r.found) && (r.url || r.cover || r.highCover)) return r;
+                return null;
+            }
+            return null;
       };
       class JavxyPreviewVideoPlugin extends BasePlugin {
         getName() {
@@ -12590,9 +12620,11 @@ ${err.stack}` : "");
           $(".buttons button[data-clipboard-text*='magnet:']").each(((i, el) => {
               const $copyBtn = $(el);
               const magnet = $copyBtn.attr("data-clipboard-text");
-              $copyBtn.css("margin-right", parseInt($copyBtn.css("margin-right")) - 5 + "px");
+              $copyBtn.css("margin-right", parseInt($copyBtn.css("margin-right")) - 4 + "px");
               const $downloadBtn = $copyBtn.siblings("a.button, button").first();
-              $downloadBtn.length && $downloadBtn.css("margin-right", parseInt($downloadBtn.css("margin-right")) - 5 + "px");
+              if ($downloadBtn.length) {
+                  $downloadBtn.css("margin-right", parseInt($downloadBtn.css("margin-right")) + 3 + "px");
+              }
               $("<button>").text("验车").addClass("button is-info is-small").click(((event) => {
                   event.stopPropagation();
                   event.preventDefault();
@@ -15618,7 +15650,7 @@ ${err.stack}` : "");
         }
         async createMenuBtn() {
             const pageInfo = this.getPageInfo(), carNum2 = pageInfo.carNum,
-                buttonsHtml = '\n            <div style="margin: 10px auto; display: flex; justify-content: space-between; align-items: center; flex-wrap:wrap;gap: 20px;">\n                <div style="display: flex; gap: 10px; flex-wrap:wrap;">\n                    <a id="filterBtn" class="menu-btn" style="width: 120px; background-color:#de3333; color: white; text-align: center; padding: 8px 0;">\n                        <span>🚫 屏蔽</span>\n                    </a>\n                    <a id="favoriteBtn" class="menu-btn" style="width: 120px; background-color:#25b1dc; color: white; text-align: center; padding: 8px 0;">\n                        <span>⭐ 收藏</span>\n                    </a>\n                    <a id="hasDownBtn" class="menu-btn" style="width: 120px; background-color:#7bc73b; color: white; text-align: center; padding: 8px 0;">\n                        <span>📥️ 已下载</span>\n                    </a>\n                    <a id="hasWatchBtn" class="menu-btn" style="width: 120px; background-color:#d7a80c; color: white; text-align: center; padding: 8px 0;">\n                        <span>🔍 已观看</span>\n                    </a>\n                </div>\n        \n                <div style="display: flex; gap: 10px; flex-wrap:wrap;">\n                    <a id="enable-magnets-filter" class="menu-btn" style="width: 140px; background-color: #c2bd4c; color: white; text-align: center; padding: 8px 0;">\n                        <span id="magnets-span">排序与过滤</span>\n                    </a>\n                    <a id="magnetSearchBtn" class="menu-btn" style="width: 120px; background: linear-gradient(to right, rgb(245,140,1), rgb(84,161,29)); color: white; text-align: center; padding: 8px 0;">\n                        <span>磁力搜索</span>\n                    </a>\n                    <a id="subtitleSearchBtn" class="menu-btn" style="width: 120px; background: linear-gradient(to left, #375f7c, #2196F3); color: white; text-align: center; padding: 8px 0;">\n                        <span>字幕搜索</span>\n                    </a>\n                    <!--\n                    <a id="xunLeiSubtitleBtn" class="menu-btn" style="width: 120px; background: linear-gradient(to left, #375f7c, #2196F3); color: white; text-align: center; padding: 8px 0;">\n                        <span>字幕 (迅雷)</span>\n                    </a>\n                    <a id="search-subtitle-btn" class="menu-btn" style="width: 160px; background: linear-gradient(to bottom, #8d5656, rgb(196,159,91)); color: white; text-align: center; padding: 8px 0;">\n                        <span>字幕 (SubTitleCat)</span>\n                    </a>\n                    -->\n                </div>\n            </div>\n        ';
+                buttonsHtml = '\n            <div style="margin: 10px auto; display: flex; justify-content: space-between; align-items: center; flex-wrap:wrap;gap: 20px;">\n                <div style="display: flex; gap: 10px; flex-wrap:wrap;">\n                    <a id="filterBtn" class="menu-btn" style="width: 120px; background-color:#de3333; color: white; text-align: center; padding: 8px 0;">\n                        <span>🚫 屏蔽</span>\n                    </a>\n                    <a id="favoriteBtn" class="menu-btn" style="width: 120px; background-color:#25b1dc; color: white; text-align: center; padding: 8px 0;">\n                        <span>⭐ 收藏</span>\n                    </a>\n                    <a id="hasDownBtn" class="menu-btn" style="width: 120px; background-color:#7bc73b; color: white; text-align: center; padding: 8px 0;">\n                        <span>📥️ 已下载</span>\n                    </a>\n                    <a id="hasWatchBtn" class="menu-btn" style="width: 120px; background-color:#d7a80c; color: white; text-align: center; padding: 8px 0;">\n                        <span>🔍 已观看</span>\n                    </a>\n                </div>\n        \n                <div style="display: flex; gap: 10px; flex-wrap:wrap;">\n                    <a id="downloadCoverBtn" class="menu-btn" style="width: 140px; background-color: #9b59b6; color: white; text-align: center; padding: 8px 0;">\n                        <span>下载高清封面</span>\n                    </a>\n                    <a id="enable-magnets-filter" class="menu-btn" style="width: 140px; background-color: #c2bd4c; color: white; text-align: center; padding: 8px 0;">\n                        <span id="magnets-span">排序与过滤</span>\n                    </a>\n                    <a id="magnetSearchBtn" class="menu-btn" style="width: 120px; background: linear-gradient(to right, rgb(245,140,1), rgb(84,161,29)); color: white; text-align: center; padding: 8px 0;">\n                        <span>磁力搜索</span>\n                    </a>\n                    <a id="subtitleSearchBtn" class="menu-btn" style="width: 120px; background: linear-gradient(to left, #375f7c, #2196F3); color: white; text-align: center; padding: 8px 0;">\n                        <span>字幕搜索</span>\n                    </a>\n                    <!--\n                    <a id="xunLeiSubtitleBtn" class="menu-btn" style="width: 120px; background: linear-gradient(to left, #375f7c, #2196F3); color: white; text-align: center; padding: 8px 0;">\n                        <span>字幕 (迅雷)</span>\n                    </a>\n                    <a id="search-subtitle-btn" class="menu-btn" style="width: 160px; background: linear-gradient(to bottom, #8d5656, rgb(196,159,91)); color: white; text-align: center; padding: 8px 0;">\n                        <span>字幕 (SubTitleCat)</span>\n                    </a>\n                    -->\n                </div>\n            </div>\n        ';
           isJavDb$1 && $(".tabs").after(buttonsHtml);
           isJavBus$1 && $("#mag-submit-show").before(buttonsHtml);
           $("#favoriteBtn").on("click", (() => this.favoriteOne()));
@@ -15679,6 +15711,45 @@ ${err.stack}` : "");
           }));
           $("#subtitleSearchBtn").on("click", (() => {
               window.JavPackSubtitle.openSearchModal({details: {code: carNum2}});
+          }));
+            $("#downloadCoverBtn").on("click", (async () => {
+                if (!isEligibleDmmCoverCode(carNum2)) {
+                    layer.msg("当前番号不支持下载高清封面");
+                    return;
+                }
+                const $btn = $("#downloadCoverBtn");
+                $btn.addClass("is-loading").prop("disabled", true);
+                try {
+                    const coverData = await fromJavxyCover(carNum2);
+                    if (!coverData) {
+                        layer.msg("未找到高清封面");
+                        return;
+                    }
+                    const coverUrl = coverData.url || coverData.highCover || coverData.cover;
+                    if (!coverUrl) {
+                        layer.msg("封面链接为空");
+                        return;
+                    }
+                    const fileName = `${carNum2}-cover.jpg`;
+                    _GM_xmlhttpRequest({
+                        method: "GET",
+                        url: coverUrl,
+                        responseType: "blob",
+                        onload: (response) => {
+                            if (response.status === 200) {
+                                utils.download(response.response, fileName);
+                            } else {
+                                layer.msg(`封面下载失败: ${response.status}`);
+                            }
+                        },
+                        onerror: () => layer.msg("封面下载网络错误"),
+                        ontimeout: () => layer.msg("封面下载超时")
+                    });
+                } catch (e) {
+                    layer.msg("获取封面信息失败");
+                } finally {
+                    $btn.removeClass("is-loading").prop("disabled", false);
+                }
           }));
           window.JavPackSubtitle.preload115Matches(carNum2);
           this.showStatus(carNum2).then();
diff --git a/package.json b/package.json
index 76cf2d8..d709b7b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "jhs-enhance",
-  "version": "3.3.10",
+  "version": "3.3.11",
   "description": "Jav-鉴黄师 油猴脚本 - 工程化版本",
   "type": "module",
   "scripts": {
diff --git a/src/api/javxy.js b/src/api/javxy.js
index 248ccbd..c50cf4c 100644
--- a/src/api/javxy.js
+++ b/src/api/javxy.js
@@ -211,10 +211,36 @@ const getJavxyVideoUrls = async (code, failedSources = []) => {
     return null;
 };
 
+const fromJavxyCover = async (code) => {
+    const query = String(code || '').trim();
+    if (!query) return null;
+
+    for (const endpoint of JAVXY_ENDPOINTS) {
+        const params = new URLSearchParams({client: 'laosiji-new'});
+        const apiUrl = `https://${endpoint.host}/covers/${encodeURIComponent(query)}?${params}`;
+
+        let r;
+        try {
+            r = await gmHttp.get(apiUrl, null, {
+                'Accept': 'application/json,text/plain,*/*',
+                'X-Javxy-Token': JAVXY_TOKEN,
+            }, {timeout: 15000});
+        } catch (e) {
+            continue;
+        }
+
+        if (!r) continue;
+        if (r?.found && (r.url || r.cover || r.highCover)) return r;
+        return null;
+    }
+    return null;
+};
+
 export {
     fromJavxyCcCd,
     fallbackJavxyResult,
     getJavxyVideoUrls,
+    fromJavxyCover,
     normalizeJavxySource,
     isJpSourceTemporarilyFailed,
     markJpSourceTemporarilyFailed,
diff --git a/src/core/constants.js b/src/core/constants.js
index 6fe8ace..bbccb7a 100644
--- a/src/core/constants.js
+++ b/src/core/constants.js
@@ -1043,6 +1043,16 @@ insertStyle(
 insertStyle(mainCss);
 insertStyle(subtitleModalCss);
 
+const isEligibleDmmCoverCode = (value) => {
+  const raw = String(value || '').trim().toUpperCase();
+  if (!/^[A-Z0-9]{2,10}-\d{1,6}$/.test(raw)) return false;
+  const code = raw.replace(/\s+/g, '-').toUpperCase();
+  if (!/^[A-Z0-9]{2,10}-\d{1,6}$/.test(code) || /^FC2-/.test(code)) return false;
+  if (/^\d{6}[-_]\d{2,3}$/.test(code)) return false;
+  if (/^(DUGA|MYWIFE|HEYZO|PACO|10MU|1PONDO|CARIBBEAN|CARIB|TOKYO|GACHI|REAL|JUKU|AKA|NTR)-/.test(code)) return false;
+  return true;
+};
+
 export {
   __defProp,
   __typeError,
@@ -1052,6 +1062,7 @@ export {
   isJavDb,
   isJavBus,
   isSearchPage,
+  isEligibleDmmCoverCode,
   Status_RUNNING,
   Status_SUCCESS,
   Status_FAIL,
diff --git a/src/plugins/detail-page-button.js b/src/plugins/detail-page-button.js
index f32f221..2e4fa6e 100644
--- a/src/plugins/detail-page-button.js
+++ b/src/plugins/detail-page-button.js
@@ -1,6 +1,19 @@
 import { BasePlugin } from '../core/base-plugin.js';
-import { __publicField, isJavBus, isJavDb, Status_FILTER, Status_FAVORITE, Status_HAS_DOWN, Status_HAS_WATCH, NO, YES } from '../core/constants.js';
+import {
+    __publicField,
+    isJavBus,
+    isJavDb,
+    isEligibleDmmCoverCode,
+    Status_FILTER,
+    Status_FAVORITE,
+    Status_HAS_DOWN,
+    Status_HAS_WATCH,
+    NO,
+    YES
+} from '../core/constants.js';
 import { HotkeyManager } from './preview-video.js';
+import {GM_xmlhttpRequest} from 'vite-plugin-monkey/dist/client';
+import {fromJavxyCover} from '../api/javxy.js';
 
 class DetailPageButtonPlugin extends BasePlugin {
     getName() {
@@ -23,7 +36,7 @@ class DetailPageButtonPlugin extends BasePlugin {
     }
     async createMenuBtn() {
         const pageInfo = this.getPageInfo(), carNum2 = pageInfo.carNum,
-            buttonsHtml = '\n            <div style="margin: 10px auto; display: flex; justify-content: space-between; align-items: center; flex-wrap:wrap;gap: 20px;">\n                <div style="display: flex; gap: 10px; flex-wrap:wrap;">\n                    <a id="filterBtn" class="menu-btn" style="width: 120px; background-color:#de3333; color: white; text-align: center; padding: 8px 0;">\n                        <span>🚫 屏蔽</span>\n                    </a>\n                    <a id="favoriteBtn" class="menu-btn" style="width: 120px; background-color:#25b1dc; color: white; text-align: center; padding: 8px 0;">\n                        <span>⭐ 收藏</span>\n                    </a>\n                    <a id="hasDownBtn" class="menu-btn" style="width: 120px; background-color:#7bc73b; color: white; text-align: center; padding: 8px 0;">\n                        <span>📥️ 已下载</span>\n                    </a>\n                    <a id="hasWatchBtn" class="menu-btn" style="width: 120px; background-color:#d7a80c; color: white; text-align: center; padding: 8px 0;">\n                        <span>🔍 已观看</span>\n                    </a>\n                </div>\n        \n                <div style="display: flex; gap: 10px; flex-wrap:wrap;">\n                    <a id="enable-magnets-filter" class="menu-btn" style="width: 140px; background-color: #c2bd4c; color: white; text-align: center; padding: 8px 0;">\n                        <span id="magnets-span">排序与过滤</span>\n                    </a>\n                    <a id="magnetSearchBtn" class="menu-btn" style="width: 120px; background: linear-gradient(to right, rgb(245,140,1), rgb(84,161,29)); color: white; text-align: center; padding: 8px 0;">\n                        <span>磁力搜索</span>\n                    </a>\n                    <a id="subtitleSearchBtn" class="menu-btn" style="width: 120px; background: linear-gradient(to left, #375f7c, #2196F3); color: white; text-align: center; padding: 8px 0;">\n                        <span>字幕搜索</span>\n                    </a>\n                    <!--\n                    <a id="xunLeiSubtitleBtn" class="menu-btn" style="width: 120px; background: linear-gradient(to left, #375f7c, #2196F3); color: white; text-align: center; padding: 8px 0;">\n                        <span>字幕 (迅雷)</span>\n                    </a>\n                    <a id="search-subtitle-btn" class="menu-btn" style="width: 160px; background: linear-gradient(to bottom, #8d5656, rgb(196,159,91)); color: white; text-align: center; padding: 8px 0;">\n                        <span>字幕 (SubTitleCat)</span>\n                    </a>\n                    -->\n                </div>\n            </div>\n        ';
+            buttonsHtml = '\n            <div style="margin: 10px auto; display: flex; justify-content: space-between; align-items: center; flex-wrap:wrap;gap: 20px;">\n                <div style="display: flex; gap: 10px; flex-wrap:wrap;">\n                    <a id="filterBtn" class="menu-btn" style="width: 120px; background-color:#de3333; color: white; text-align: center; padding: 8px 0;">\n                        <span>🚫 屏蔽</span>\n                    </a>\n                    <a id="favoriteBtn" class="menu-btn" style="width: 120px; background-color:#25b1dc; color: white; text-align: center; padding: 8px 0;">\n                        <span>⭐ 收藏</span>\n                    </a>\n                    <a id="hasDownBtn" class="menu-btn" style="width: 120px; background-color:#7bc73b; color: white; text-align: center; padding: 8px 0;">\n                        <span>📥️ 已下载</span>\n                    </a>\n                    <a id="hasWatchBtn" class="menu-btn" style="width: 120px; background-color:#d7a80c; color: white; text-align: center; padding: 8px 0;">\n                        <span>🔍 已观看</span>\n                    </a>\n                </div>\n        \n                <div style="display: flex; gap: 10px; flex-wrap:wrap;">\n                    <a id="downloadCoverBtn" class="menu-btn" style="width: 140px; background-color: #9b59b6; color: white; text-align: center; padding: 8px 0;">\n                        <span>下载高清封面</span>\n                    </a>\n                    <a id="enable-magnets-filter" class="menu-btn" style="width: 140px; background-color: #c2bd4c; color: white; text-align: center; padding: 8px 0;">\n                        <span id="magnets-span">排序与过滤</span>\n                    </a>\n                    <a id="magnetSearchBtn" class="menu-btn" style="width: 120px; background: linear-gradient(to right, rgb(245,140,1), rgb(84,161,29)); color: white; text-align: center; padding: 8px 0;">\n                        <span>磁力搜索</span>\n                    </a>\n                    <a id="subtitleSearchBtn" class="menu-btn" style="width: 120px; background: linear-gradient(to left, #375f7c, #2196F3); color: white; text-align: center; padding: 8px 0;">\n                        <span>字幕搜索</span>\n                    </a>\n                    <!--\n                    <a id="xunLeiSubtitleBtn" class="menu-btn" style="width: 120px; background: linear-gradient(to left, #375f7c, #2196F3); color: white; text-align: center; padding: 8px 0;">\n                        <span>字幕 (迅雷)</span>\n                    </a>\n                    <a id="search-subtitle-btn" class="menu-btn" style="width: 160px; background: linear-gradient(to bottom, #8d5656, rgb(196,159,91)); color: white; text-align: center; padding: 8px 0;">\n                        <span>字幕 (SubTitleCat)</span>\n                    </a>\n                    -->\n                </div>\n            </div>\n        ';
         isJavDb && $(".tabs").after(buttonsHtml);
         isJavBus && $("#mag-submit-show").before(buttonsHtml);
         $("#favoriteBtn").on("click", (() => this.favoriteOne()));
@@ -87,6 +100,45 @@ class DetailPageButtonPlugin extends BasePlugin {
         $("#subtitleSearchBtn").on("click", (() => {
             window.JavPackSubtitle.openSearchModal({details: {code: carNum2}});
         }));
+        $("#downloadCoverBtn").on("click", (async () => {
+            if (!isEligibleDmmCoverCode(carNum2)) {
+                layer.msg("当前番号不支持下载高清封面");
+                return;
+            }
+            const $btn = $("#downloadCoverBtn");
+            $btn.addClass("is-loading").prop("disabled", true);
+            try {
+                const coverData = await fromJavxyCover(carNum2);
+                if (!coverData) {
+                    layer.msg("未找到高清封面");
+                    return;
+                }
+                const coverUrl = coverData.url || coverData.highCover || coverData.cover;
+                if (!coverUrl) {
+                    layer.msg("封面链接为空");
+                    return;
+                }
+                const fileName = `${carNum2}-cover.jpg`;
+                GM_xmlhttpRequest({
+                    method: 'GET',
+                    url: coverUrl,
+                    responseType: 'blob',
+                    onload: (response) => {
+                        if (response.status === 200) {
+                            utils.download(response.response, fileName);
+                        } else {
+                            layer.msg(`封面下载失败: ${response.status}`);
+                        }
+                    },
+                    onerror: () => layer.msg("封面下载网络错误"),
+                    ontimeout: () => layer.msg("封面下载超时"),
+                });
+            } catch (e) {
+                layer.msg("获取封面信息失败");
+            } finally {
+                $btn.removeClass("is-loading").prop("disabled", false);
+            }
+        }));
         window.JavPackSubtitle.preload115Matches(carNum2);
         // $("#search-subtitle-btn").on("click", (event => utils.openPage(`https://subtitlecat.com/index.php?search=${carNum2}`, carNum2, !1, event)));
         // $("#xunLeiSubtitleBtn").on("click", (() => this.searchXunLeiSubtitle(carNum2)));
diff --git a/vite.config.mjs b/vite.config.mjs
index 166d8a6..bbad601 100644
--- a/vite.config.mjs
+++ b/vite.config.mjs
@@ -8,7 +8,7 @@ export default defineConfig({
       userscript: {
           name: 'JHS-enhance',
           namespace: 'JHS-enhance',
-        version: '3.3.10',
+          version: '3.3.11',
         author: 'xiebro,fireinrain',
         description: 'Jav-鉴黄师 增强脚本。列表页：作品状态标签、一键筛选、新作品检测、演员黑名单过滤；详情页：磁力链接高亮、DMM 多画质预览视频、标题翻译、整合字幕搜索（迅雷+SubTitleCat）并支持 115 直传、多源预览图（javfree/projectjav/javstore）含来源切换；数据：115 网盘目录匹配与多目录选择、云盘备份/恢复、跨 Tab 同步；其他：自动翻页、分类折叠、Top250、以图识图、热门榜单、评论查看、相关清单。支持 JavDB / JavBus / JavSee / SeeJav / FC2 / JavTrailers',
         license: 'MIT',