修改分页问题

Sources/RDReaderView/EPUBUI/RDURLReaderController.swift

@@ -123,7 +123,7 @@ public final class RDURLReaderController: UIViewController {
                 layoutConfig: RDEPUBTextLayoutConfig(
                     frameWidth: pageSize.width,
                     frameHeight: pageSize.height,
-                    edgeInsets: .zero,
+                    edgeInsets: epubConfiguration.reflowableContentInsets,
                     numberOfColumns: 1,
                     columnGap: 20,
                     avoidOrphans: true,
@@ -179,15 +179,11 @@ public final class RDURLReaderController: UIViewController {
         print("[ReadViewDemo] automation \(prefix) -> page \(page) href \(href) progression \(progression)")
     }
 
-    /// 计算文本分页的页面尺寸
-    /// 基于屏幕尺寸和配置的内边距
+    /// 计算文本分页的页面尺寸。
+    /// 分页器使用完整 viewport，真实可绘制区域由 layoutConfig.edgeInsets 控制，
+    /// 以保持与页面展示时的内容几何一致。
     private func currentTextPageSize() -> CGSize {
-        let viewportSize = UIScreen.main.bounds.size
-        let insets = epubConfiguration.reflowableContentInsets
-        return CGSize(
-            width: max(viewportSize.width - insets.left - insets.right, 1),
-            height: max(viewportSize.height - insets.top - insets.bottom, 1)
-        )
+        UIScreen.main.bounds.size
     }
 
     /// 根据当前配置生成文本渲染样式