diff --git a/packages/vite-plugin/dist/index.js b/packages/vite-plugin/dist/index.js
index 24f05fe..d3b9fb8 100644
--- a/packages/vite-plugin/dist/index.js
+++ b/packages/vite-plugin/dist/index.js
@@ -493,7 +493,7 @@
             "group-hover:",
         ];
         const statePrefixes = ["dark:", "light:", "sm:", "md:", "lg:", "xl:", "2xl:"];
-        if (className.includes("!")) {
+        if (className.startsWith("!") && !className.includes("!=")) {
             return true;
         }
         for (const prefix of prefixes) {
@@ -1670,6 +1670,10 @@ if (typeof window !== 'undefined') {
         if (className.includes(":host")) {
             return className;
         }
+        // 如果是表达式,则不进行转换
+        if (["!=", "!==", "?", ":", "="].includes(className)) {
+            return className;
+        }
         let safeClassName = className;
         // 移除转义字符
         if (safeClassName.includes("\\")) {
@@ -1772,7 +1776,9 @@ if (typeof window !== 'undefined') {
                                                 }
                                                 // 处理 flex-1
                                                 if (decl.prop == "flex") {
-                                                    decl.value = "1";
+                                                    if (decl.value.startsWith("1")) {
+                                                        decl.value = "1";
+                                                    }
                                                 }
                                                 // 解析声明值
                                                 const parsed = valueParser(decl.value);
diff --git a/packages/vite-plugin/src/uniapp-x/tailwind.ts b/packages/vite-plugin/src/uniapp-x/tailwind.ts
index 09025cc..c99c695 100644
--- a/packages/vite-plugin/src/uniapp-x/tailwind.ts
+++ b/packages/vite-plugin/src/uniapp-x/tailwind.ts
@@ -34,6 +34,11 @@ function toSafeClass(className: string): string {
 		return className;
 	}
 
+	// 如果是表达式,则不进行转换
+	if (["!=", "!==", "?", ":", "="].includes(className)) {
+		return className;
+	}
+
 	let safeClassName = className;
 
 	// 移除转义字符
@@ -163,7 +168,9 @@ function postcssPlugin(): Plugin {
 
 											// 处理 flex-1
 											if (decl.prop == "flex") {
-												decl.value = "1";
+												if (decl.value.startsWith("1")) {
+													decl.value = "1";
+												}
 											}
 
 											// 解析声明值
diff --git a/packages/vite-plugin/src/uniapp-x/utils.ts b/packages/vite-plugin/src/uniapp-x/utils.ts
index 0285290..b669232 100644
--- a/packages/vite-plugin/src/uniapp-x/utils.ts
+++ b/packages/vite-plugin/src/uniapp-x/utils.ts
@@ -314,7 +314,7 @@ export function isTailwindClass(className: string): boolean {
 
 	const statePrefixes = ["dark:", "light:", "sm:", "md:", "lg:", "xl:", "2xl:"];
 
-	if (className.includes("!")) {
+	if (className.startsWith("!") && !className.includes("!=")) {
 		return true;
 	}