diff --git a/pages/popup.js b/pages/popup.js
index 4b980ea..401acab 100644
--- a/pages/popup.js
+++ b/pages/popup.js
@@ -1,4 +1,59 @@
 document.addEventListener("DOMContentLoaded", async () => {
+  // 标签页/弹窗自适应：宽大则自动全屏自适应
+  if (window.innerWidth > 900 && window.innerHeight > 700) {
+    document.body.classList.add('fullscreen');
+    // 禁用拖拽
+    const panel = document.getElementById('draggablePanel');
+    if (panel) {
+      panel.style.left = '';
+      panel.style.top = '';
+      panel.style.position = 'fixed';
+    }
+  } else {
+    // 弹窗环境支持拖拽
+    const panel = document.getElementById('draggablePanel');
+    const header = document.querySelector('.header');
+    let dragging = false, offsetX = 0, offsetY = 0;
+    if (panel && header) {
+      header.addEventListener('mousedown', function(e) {
+        dragging = true;
+        offsetX = e.clientX - panel.offsetLeft;
+        offsetY = e.clientY - panel.offsetTop;
+        document.body.style.userSelect = 'none';
+      });
+
+      document.addEventListener('mousemove', function(e) {
+        if (dragging) {
+          let left = Math.max(0, e.clientX - offsetX);
+          let top = Math.max(0, e.clientY - offsetY);
+          panel.style.left = left + 'px';
+          panel.style.top = top + 'px';
+        }
+      });
+
+      document.addEventListener('mouseup', function() {
+        dragging = false;
+        document.body.style.userSelect = '';
+      });
+    }
+  }
+
+  // 标签页打开按钮
+  const openTabBtn = document.getElementById('openTabBtn');
+  if (openTabBtn) {
+    openTabBtn.onclick = function () {
+      if (window.chrome && chrome.runtime && chrome.runtime.id && chrome.tabs && chrome.runtime.getURL) {
+        try {
+          chrome.tabs.create({ url: chrome.runtime.getURL("pages/popup.html") });
+        } catch (e) {
+          window.open("popup.html", "_blank");
+        }
+      } else {
+        window.open("popup.html", "_blank");
+      }
+    };
+  }
+
   const input = document.getElementById("searchInput");
   const searchBtn = document.getElementById("searchBtn");
   const clearHistoryBtn = document.getElementById("clearHistoryBtn");
diff --git a/pages/styles.css b/pages/styles.css
index 0e5307f..b179571 100644
--- a/pages/styles.css
+++ b/pages/styles.css
@@ -5,6 +5,23 @@ body {
   background-color: #fefefe;
 }
 
+/* 新增：标签页下自动全屏自适应，内容居中不可拖拽 */
+body.fullscreen .draggable-panel {
+  position: fixed !important;
+  left: 50% !important;
+  top: 50% !important;
+  transform: translate(-50%, -50%) !important;
+  width: 90vw !important;
+  max-width: 1200px !important;
+  height: 94vh !important;
+  max-height: 98vh !important;
+  min-width: 360px !important;
+  min-height: 320px !important;
+  box-shadow: 0 10px 40px #3070ed22;
+  resize: none !important;
+}
+
+
 .header {
   display: flex;
   align-items: center;