fix: enable continuous scroll tip

Author: dfface

epub_browser/assets/annotation.css

@@ -553,12 +553,8 @@
     content: 'Drag to reorder.';
 }
 
-.continuous-scroll-tip:hover::after {
-    content: attr(data-tip);
-    position: absolute;
-    bottom: calc(100% + 8px);
-    left: 50%;
-    transform: translateX(-50%);
+.continuous-scroll-tooltip {
+    position: fixed;
     background: var(--text);
     color: var(--background);
     padding: 8px 12px;
@@ -572,17 +568,17 @@
     text-align: left;
     z-index: 9999;
     box-shadow: 0 2px 8px rgba(0,0,0,0.2);
+    pointer-events: none;
 }
 
-.continuous-scroll-tip:hover::before {
+.continuous-scroll-tooltip::after {
     content: '';
     position: absolute;
-    bottom: calc(100% + 2px);
+    top: 100%;
     left: 50%;
     transform: translateX(-50%);
     border: 5px solid transparent;
     border-top-color: var(--text);
-    z-index: 9999;
 }
 
 .color-add-btn {

epub_browser/assets/chapter.js

@@ -1936,6 +1936,31 @@ function initScript() {
             setTimeout(function() { location.reload(); }, 500);
         });
     }
+    
+    // 连续滚动开关的 hint tooltip（JS 动态创建，避免被 settings-content 的 overflow 裁剪）
+    if (continuousScrollTip) {
+        var tipTooltip = null;
+        continuousScrollTip.addEventListener('mouseenter', function() {
+            var tipText = continuousScrollTip.getAttribute('data-tip');
+            if (!tipText) return;
+            
+            tipTooltip = document.createElement('div');
+            tipTooltip.className = 'continuous-scroll-tooltip';
+            tipTooltip.textContent = tipText;
+            document.body.appendChild(tipTooltip);
+            
+            var iconRect = continuousScrollTip.getBoundingClientRect();
+            tipTooltip.style.left = (iconRect.left + iconRect.width / 2) + 'px';
+            tipTooltip.style.transform = 'translateX(-50%)';
+            tipTooltip.style.bottom = (window.innerHeight - iconRect.top + 8) + 'px';
+        });
+        continuousScrollTip.addEventListener('mouseleave', function() {
+            if (tipTooltip) {
+                tipTooltip.remove();
+                tipTooltip = null;
+            }
+        });
+    }
 }
 
 window.initScriptChapter = initScript;