fix: 优化表格预览样式及块级装饰行范围计算

src/app.css

@@ -672,7 +672,7 @@ body.single-col .post-list {
 .article-content th,
 .article-content td {
 	border: 1px solid var(--border-color);
-	padding: 0.6rem 1rem;
+	padding: 0.3rem 0.8rem;
 }
 
 .article-content th {

src/lib/editor/tableFormatterPlugin.ts

@@ -223,7 +223,7 @@ class TablePreviewWidget extends WidgetType {
 				// Basic markdown parsing for links and strong could be done here, but textContent is safer
 				td.textContent = col;
 				td.style.border = '1px solid var(--border-color, #e5e7eb)';
-				td.style.padding = '0.6rem 1rem';
+				td.style.padding = '0.3rem 0.8rem';
 				td.style.textAlign = alignments[colIndex] || 'left';
 				if (isHeader) {
 					td.style.backgroundColor = 'rgba(0, 0, 0, 0.03)';
@@ -266,14 +266,20 @@ function getTableDecorations(state: EditorState) {
 					node.to === currentTableRange.to;
 
 				if (!isCurrent) {
-					const tableStr = state.doc.sliceString(node.from, node.to);
+					// Ensure block replace decorations cover entire lines
+					const startLine = state.doc.lineAt(node.from);
+					const endLine = state.doc.lineAt(node.to);
+					const from = startLine.from;
+					const to = endLine.to;
+
+					const tableStr = state.doc.sliceString(from, to);
 					// Skip malformed tables or empty ones
 					if (tableStr.trim().length > 0) {
 						const deco = Decoration.replace({
 							widget: new TablePreviewWidget(tableStr),
 							block: true
 						});
-						widgets.push(deco.range(node.from, node.to));
+						widgets.push(deco.range(from, to));
 					}
 				}
 			}