fix:bug[16827] 文案显示样式和android 不一致，文案比android颜色深

@@ -29,6 +29,7 @@ export struct LoginInputComponent {
   addCodeLayout() {
     if (this.pageType == 1){
       TextInput({ placeholder: this.securityPhone(this.phoneContent) })
+        .placeholderColor("#CCCCCC")
         .fontSize(16)
         .height(48)
         .maxLength(11)
@@ -50,6 +51,7 @@ export struct LoginInputComponent {
       TextInput({ placeholder: "请输入手机号" })
         .fontSize(16)
         .height(48)
+        .placeholderColor("#CCCCCC")
         .maxLength(11)
         .margin({ top: 36 })
         .backgroundColor("#F5F5F5")
@@ -69,6 +71,7 @@ export struct LoginInputComponent {
 
     Row() {
       TextInput({ placeholder: "验证码" })
+        .placeholderColor("#CCCCCC")
         .layoutWeight(1)
         .fontSize(16)
         .height(48)

@@ -215,6 +215,7 @@ struct LoginPage {
     Column() {
       TextInput({ placeholder: "请输入账号", controller: this.phoneController })
         .fontSize(16)
+        .placeholderColor("#CCCCCC")
         .height(48)
         .backgroundColor("#F5F5F5")
         .borderRadius(4)
@@ -254,6 +255,7 @@ struct LoginPage {
   @Builder
   addPasswordInputLayout() {
     TextInput({ placeholder: "请输入密码", text: this.passwordContent })
+      .placeholderColor("#CCCCCC")
       .layoutWeight(1)
       .fontSize(16)
       .height(48)

@@ -199,6 +199,7 @@ export struct SettingPasswordLayout {
     Row() {
       Row() {
         TextInput({ placeholder: item.inputPlacholder })
+          .placeholderColor("#CCCCCC")
           .type(InputType.Password)
           .showPasswordIcon(true)
           .backgroundColor('#00000000')
@@ -225,6 +226,7 @@ export struct SettingPasswordLayout {
     Row() {
       Row() {
         TextInput({ placeholder: item.inputPlacholder })
+          .placeholderColor("#CCCCCC")
           .backgroundColor('#00000000')
           .onChange((value: string) => {
             this.inputTextChange(value, item.inputTag)
@@ -251,6 +253,7 @@ export struct SettingPasswordLayout {
         Image($r('app.media.get_code_bg')).width('100%').borderRadius('4vp')
         Row() {
           TextInput({ placeholder: item.inputPlacholder })
+            .placeholderColor("#CCCCCC")
             .backgroundColor('#00000000')
             .width('67.28%')
             .onChange((value: string) => {