feat(编辑阅读): 完善保真编辑与跨文档复制，优化后端缓存和大文件性能

assets/webui/ofdgo.css

@@ -692,6 +692,27 @@ button:not(:disabled):hover {
 	line-height: 1.5;
 }
 
+#sourceTextPanel {
+	width: 440px;
+}
+
+#sourceTextValue {
+	min-height: 80px;
+}
+
+#sourceTextPreview {
+	height: 160px;
+	margin-top: 12px;
+	background: #fff;
+	overflow: hidden;
+}
+
+#sourceTextPreview svg {
+	display: block;
+	width: 100%;
+	height: 100%;
+}
+
 .security-dialog {
 	width: 360px;
 }