diff --git a/extension/entrypoints/panel.content.ts b/extension/entrypoints/panel.content.ts
index 03b7074..5fde150 100644
--- a/extension/entrypoints/panel.content.ts
+++ b/extension/entrypoints/panel.content.ts
@@ -33,6 +33,32 @@ const STYLES = `
   .fab:hover { transform: scale(1.08); }
   .fab.hidden { display: none; }
 
+  /* 收起按钮：骑在面板左上边缘（一半在面板外）。必须在 iframe 外渲染——
+     iframe 裁剪内容，iframe 内的元素永远溢不出面板边界 */
+  .panel-close {
+    position: fixed;
+    top: 20px;
+    right: min(880px, 100vw);   /* 面板左边缘 = 视口右沿 - 面板宽度 */
+    transform: translateX(50%);
+    width: 28px;
+    height: 28px;
+    border-radius: 50%;
+    border: 1px solid rgba(0, 0, 0, 0.12);
+    background: #fff;
+    color: #555;
+    cursor: pointer;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.18);
+    z-index: 4;
+    opacity: 0;
+    pointer-events: none;
+    transition: opacity 0.25s ease, transform 0.15s ease;
+  }
+  .panel-close.visible { opacity: 1; pointer-events: auto; }
+  .panel-close:hover { color: #6d28d9; border-color: #6d28d9; transform: translateX(50%) scale(1.08); }
+
   .panel {
     position: fixed;
     top: 0;
@@ -92,23 +118,34 @@ export default defineContentScript({
         const iframe = document.createElement('iframe');
         iframe.title = '电商套图工作台';
         panel.append(iframe);
-        container.append(fab, panel);
+
+        // 外置收起按钮（骑在面板左上边缘，一半在面板外）
+        const closeBtn = document.createElement('button');
+        closeBtn.className = 'panel-close';
+        closeBtn.title = '收起面板（Esc）';
+        closeBtn.innerHTML =
+          '<svg width="12" height="12" viewBox="0 0 12 12" fill="none">' +
+          '<path d="M2 2l8 8M10 2l-8 8" stroke="currentColor" stroke-width="1.6" stroke-linecap="round"/></svg>';
+        container.append(fab, panel, closeBtn);
 
         const open = () => {
           if (!iframe.src) iframe.src = chrome.runtime.getURL('/sidepanel.html');
           panel.classList.add('open');
+          closeBtn.classList.add('visible');
           fab.classList.add('hidden');
           // 聚焦进面板，键盘操作（Esc 关闭 / 预览翻页）直接可用
           iframe.focus();
         };
         const close = () => {
           panel.classList.remove('open');
+          closeBtn.classList.remove('visible');
           if (isProductPage()) fab.classList.remove('hidden');
         };
 
         fab.addEventListener('click', open);
+        closeBtn.addEventListener('click', close);
 
-        // 面板内 App（✕ / Esc）→ 收起
+        // 面板内 App（Esc）→ 收起；✕ 按钮已外置到宿主层（closeBtn）
         window.addEventListener('message', (e) => {
           if (e.source === iframe.contentWindow && (e.data as any)?.type === PANEL_CLOSE_MSG) close();
         });
diff --git a/extension/entrypoints/sidepanel/App.tsx b/extension/entrypoints/sidepanel/App.tsx
index e0bc1b4..da6ee6e 100644
--- a/extension/entrypoints/sidepanel/App.tsx
+++ b/extension/entrypoints/sidepanel/App.tsx
@@ -11,7 +11,7 @@
 import React, { useCallback, useEffect, useRef, useState } from 'react';
 import { createRoot } from 'react-dom/client';
 import { App as AntApp, ConfigProvider, Popover, Progress, Select } from 'antd';
-import { SettingOutlined, DownloadOutlined, ThunderboltOutlined, UploadOutlined, CloseOutlined } from '@ant-design/icons';
+import { SettingOutlined, DownloadOutlined, ThunderboltOutlined, UploadOutlined } from '@ant-design/icons';
 import type { ScanResult, ImageMaterial } from '../../src/collector/scan';
 import { cleanFilename } from '../../src/collector/url';
 import {
@@ -671,11 +671,9 @@ const App: React.FC = () => {
 
   return (
     <div className="page">
-      {/* ── 顶栏 ── */}
+      {/* ── 顶栏 ──（页内模式的收起 ✕ 按钮在宿主层渲染：要骑在面板边缘、一半在面板外，
+          iframe 会裁剪内容，按钮必须在 iframe 外；Esc 关闭仍走 closePanel） */}
       <div className="topbar">
-        {IN_PAGE && (
-          <button className="icon-btn" title="收起面板（Esc）" onClick={closePanel}><CloseOutlined /></button>
-        )}
         <div className="logo">套</div>
         <div>
           <h1>电商套图工作台</h1>
diff --git a/server/services/watermark.py b/server/services/watermark.py
index 1eb1bde..447214c 100644
--- a/server/services/watermark.py
+++ b/server/services/watermark.py
@@ -18,8 +18,8 @@ from config import get_settings
 
 log = logging.getLogger("suite.watermark")
 
-# 尺寸比例（与 ozonSeller app.js 常量一致）
-BADGE_SCALE = 0.15      # 图片水印直径 / 图宽
+# 尺寸比例（BADGE_SCALE 在 ozonSeller 的 0.15 基础上缩小 30%：用户反馈偏大）
+BADGE_SCALE = 0.105    # 图片水印直径 / 图宽
 BADGE_MARGIN = 0.01     # 图片水印边距 / 图宽（ozonSeller 固定 10px，按比例更稳）
 TEXT_SCALE = 0.06       # 文字字号 / 图宽
 TEXT_MIN_SIZE = 12