diff --git a/.env.sample b/.env.sample
new file mode 100644
index 0000000..77ca41b
--- /dev/null
+++ b/.env.sample
@@ -0,0 +1 @@
+NUXT_PUBLIC_WHATSAPP_NUMBER=+60123456789
diff --git a/.gitignore b/.gitignore
index 99b3c47..d29ccc6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,7 +20,7 @@ logs
 
 # Local env files
 .env
-.env.*
+# .env.*
 !.env.example
 
 repomix-output.xml
\ No newline at end of file
diff --git a/app/components/webDev/ContactSalesModal.vue b/app/components/webDev/ContactSalesModal.vue
new file mode 100644
index 0000000..f34e14f
--- /dev/null
+++ b/app/components/webDev/ContactSalesModal.vue
@@ -0,0 +1,206 @@
+<template>
+  <UModal
+    v-model:open="open"
+    :title="
+      $t('webDev.know_more_title', {
+        plan: pkg?.planTitle || '—',
+      })
+    "
+    :description="
+      $t('webDev.know_more_description', {
+        plan: pkg?.planTitle || '—',
+      })
+    "
+    aria-label="Contact Sales Modal"
+  >
+    <template #body>
+      <div v-if="!pkg" class="py-6">
+        <!-- 占位 / loading -->
+        <div class="text-center text-sm text-muted">
+          {{ $t("webDev.loading_plan", "Loading plan...") }}
+        </div>
+      </div>
+
+      <UForm
+        v-else
+        ref="form"
+        :schema="schema"
+        :state="state"
+        class="space-y-4"
+        @submit="onSubmit"
+      >
+        <p class="text-lg font-medium">
+          {{
+            $t("webDev.contact_intro", {
+              service: pkg.serviceTitle,
+              plan: pkg.planTitle,
+            })
+          }}
+        </p>
+
+        <p class="text-lg font-medium">
+          {{ $t("webDev.which_provides", "Which provides:") }}
+        </p>
+
+        <ul class="space-y-1">
+          <li v-for="(feature, idx) in pkg.features" :key="idx">
+            <UIcon
+              size="16"
+              name="mdi:check-circle-outline"
+              class="text-primary-500 mr-2"
+            />{{ feature }}
+          </li>
+        </ul>
+
+        <p class="text-lg font-medium">
+          {{
+            $t("webDev.extra_remarks_title", "Besides that, I'd like to add:")
+          }}
+        </p>
+
+        <UFormField name="remarks">
+          <UTextarea
+            v-model="state.remarks"
+            :placeholder="
+              $t(
+                'webDev.remarks_placeholder',
+                'Enter your remarks or requirements, one per line'
+              )
+            "
+            class="w-full"
+            :rows="4"
+          />
+        </UFormField>
+      </UForm>
+    </template>
+
+    <template #footer>
+      <div class="w-full flex gap-4">
+        <UButton
+          :label="$t('common.button.cancel')"
+          variant="subtle"
+          color="neutral"
+          class="flex-1"
+          @click="closeModal"
+          :disabled="isSubmitting"
+        />
+        <UButton
+          :label="
+            isSubmitting
+              ? $t('common.button.saving', 'Saving...')
+              : $t('common.button.submit')
+          "
+          variant="solid"
+          color="success"
+          class="flex-1"
+          @click="handleSubmit"
+          :loading="isSubmitting"
+        />
+      </div>
+    </template>
+  </UModal>
+</template>
+
+<script lang="ts" setup>
+import * as z from "zod";
+import type { FormSubmitEvent } from "@nuxt/ui";
+
+/* ----- types ----- */
+type ContactSalesModalProps = {
+  serviceTitle: string;
+  planTitle: string;
+  startingPrice?: string;
+  features: string[];
+};
+
+/* ----- reactive state ----- */
+const pkg = ref<ContactSalesModalProps | null>(null);
+const open = ref<boolean>(false);
+const isSubmitting = ref(false);
+
+/* form ref（保持和你原来用法一致） */
+const form = useTemplateRef("form");
+
+/* ----- zod schema ----- */
+/* 注意：zod 的提示文本这里使用英文/固定字符串，若要用 i18n 需要在 validate 时把错误替换为 t(...) */
+const schema = z.object({
+  remarks: z.string().optional(),
+});
+type Schema = z.infer<typeof schema>;
+
+/* ----- 表单状态，初始化为空（openModal 时会填充） ----- */
+const state = reactive<Partial<Schema>>({
+  remarks: "",
+});
+
+/* ----- 外部调用：打开 modal 并填充数据 ----- */
+const openModal = (pricingPlan: ContactSalesModalProps) => {
+  pkg.value = { ...pricingPlan };
+  state.remarks = "";
+  open.value = true;
+};
+
+/* ----- 关闭并重置 ----- */
+const closeModal = () => {
+  open.value = false;
+  // 延迟清理以防动画或确认逻辑中读取到空
+  setTimeout(() => {
+    pkg.value = null;
+    state.remarks = "";
+    // 如果需要也可以重置表单验证状态： form.value?.reset()
+  }, 200);
+};
+
+/* ----- 表单提交处理 ----- */
+async function onSubmit(event: FormSubmitEvent<Schema>) {
+  // event.data 已通过 schema 验证
+  try {
+    isSubmitting.value = true;
+    const payload = {
+      planTitle: pkg.value?.planTitle,
+      features: pkg.value?.features,
+      remarks: (event.data.remarks || "")
+        .split("\n")
+        .map((s) => s.trim())
+        .filter(Boolean),
+      // 可以加上更多 metadata，比如 timestamp / user id / source page
+    };
+
+    // TODO: 在此发送到后端 API，例如：
+    // await $fetch('/api/contact-sales', { method: 'POST', body: payload });
+
+    // 临时方案，发送到 WhatsApp 去
+    const wa_msg = $t("webDev.whatsapp_message", {
+      service: pkg.value?.serviceTitle,
+      plan: pkg.value?.planTitle,
+      price: pkg.value?.startingPrice,
+      featureList: pkg.value?.features.map((f) => `  ✅ ${f}`).join("\n"),
+      remarkList: (event.data.remarks || "")
+        .split("\n")
+        .map((s) => s.trim())
+        .filter(Boolean)
+        .map((r) => `- ${r}`)
+        .join("\n"),
+    });
+    useWhatsAppMsgSender().sendMessage(wa_msg);
+
+    // 成功提示（如果你有全局 toast/notification）： e.g. useToast().success(...)
+    // 关闭并清理
+    closeModal();
+  } catch (err) {
+    // 处理错误（显示错误 toast / 控制台）
+    console.error("submit failed", err);
+    // 这里可以显示友好的错误信息，例如： useToast().error(t('webDev.submit_failed'))
+  } finally {
+    isSubmitting.value = false;
+  }
+}
+
+/* footer 按钮触发的提交（触发表单验证） */
+async function handleSubmit() {
+  await form.value?.submit();
+}
+
+/* 暴露给父组件的 API */
+defineExpose({ openModal, closeModal });
+</script>
diff --git a/app/composables/WhatsAppMsgSender.ts b/app/composables/WhatsAppMsgSender.ts
new file mode 100644
index 0000000..106df7d
--- /dev/null
+++ b/app/composables/WhatsAppMsgSender.ts
@@ -0,0 +1,21 @@
+import { createSharedComposable } from "@vueuse/core";
+
+const _useWhatsAppMsgSender = () => {
+  const config = useRuntimeConfig();
+  const phone = config.public.whatsappNumber;
+
+  // --- WhatsApp 自动消息逻辑 ---
+  const sendMessage = (message: string) => {
+    const text = encodeURIComponent(message);
+    const url = `https://api.whatsapp.com/send?phone=${phone}&text=${text}`;
+    window.open(url, "_blank");
+  };
+
+  return {
+    sendMessage,
+  };
+};
+
+export const useWhatsAppMsgSender = createSharedComposable(
+  _useWhatsAppMsgSender
+);
diff --git a/app/layouts/default.vue b/app/layouts/default.vue
index b930397..60bed11 100644
--- a/app/layouts/default.vue
+++ b/app/layouts/default.vue
@@ -3,7 +3,7 @@
     <UHeader
       :ui="{
         left: 'flex items-center gap-1.5',
-        center: 'hidden lg:flex lg:flex-16',
+        center: 'hidden lg:flex lg:flex-4',
         right: 'flex items-center justify-end gap-1.5',
       }"
     >
diff --git a/app/pages/webDev.vue b/app/pages/webDev.vue
index 6a2781b..28ed7ed 100644
--- a/app/pages/webDev.vue
+++ b/app/pages/webDev.vue
@@ -4,20 +4,44 @@
 
     <p class="text-muted py-4 text-center">{{ page?.remarks }}</p>
 
-    <UTabs :items="page?.services.map((s) => ({ ...s, slot: s.id }))">
-      <template
-        v-for="service in page?.services"
-        :key="service.id"
-        #[service.id]
-      >
+    <UTabs :items="serviceTabs">
+      <template v-for="service in serviceTabs" :key="service.id" #[service.id]>
         <UPricingPlans :plans="service.plans" />
       </template>
     </UTabs>
+    <WebDevContactSalesModal ref="webDevContactSalesModal" />
   </UContainer>
 </template>
 
 <script lang="ts" setup>
+import WebDevContactSalesModal from "~/components/webDev/ContactSalesModal.vue";
+
 const { data: page } = await useLocalizedCollection("webDev");
+
+const webDevContactSalesModal = ref<InstanceType<
+  typeof WebDevContactSalesModal
+> | null>(null);
+
+const serviceTabs = computed(() =>
+  page.value?.services.map((srv) => ({
+    ...srv,
+    plans: srv.plans.map((pln) => ({
+      ...pln,
+      button: {
+        label: "立刻咨询", // TODO: i18n 适配
+        onClick: () => {
+          webDevContactSalesModal.value?.openModal({
+            serviceTitle: srv.label,
+            planTitle: pln.title,
+            startingPrice: pln.price,
+            features: pln.features ?? [],
+          });
+        },
+      },
+    })),
+    slot: srv.id,
+  }))
+);
 </script>
 
 <style></style>
diff --git a/app/schemas/buttonSchema.ts b/app/schemas/buttonSchema.ts
new file mode 100644
index 0000000..3343baf
--- /dev/null
+++ b/app/schemas/buttonSchema.ts
@@ -0,0 +1,37 @@
+// buttonSchema.ts
+import { z } from "zod";
+
+const ButtonSize = z.enum(["2xs", "xs", "sm", "md", "lg", "xl"]);
+const ButtonColor = z.enum([
+  "error",
+  "primary",
+  "secondary",
+  "success",
+  "info",
+  "warning",
+  "neutral",
+]);
+const ButtonVariant = z.enum(["solid", "outline", "soft", "ghost", "link"]);
+
+export const ButtonPropsSchema = z.object({
+  size: ButtonSize.optional().default("sm"),
+  type: z.enum(["button", "submit", "reset"]).optional().default("button"),
+  label: z.string().optional().default(""),
+  color: ButtonColor.optional().default("primary"),
+  variant: ButtonVariant.optional().default("solid"),
+  icon: z.string().optional().default(""),
+  leading: z.boolean().optional().default(false),
+  trailing: z.boolean().optional().default(false),
+  disabled: z.boolean().optional().default(false),
+  loading: z.boolean().optional().default(false),
+  loadingIcon: z.string().optional().default("i-heroicons-arrow-path-20-solid"),
+  block: z.boolean().optional().default(false),
+  to: z.string().optional().default(""),
+  target: z.string().optional().default(""),
+  padded: z.boolean().optional().default(true),
+  square: z.boolean().optional().default(false),
+  truncate: z.boolean().optional().default(false),
+  attrs: z.record(z.any()).optional().default({}),
+});
+
+export type ButtonProps = z.infer<typeof ButtonPropsSchema>;
diff --git a/app/schemas/pricingPlanSchema.ts b/app/schemas/pricingPlanSchema.ts
new file mode 100644
index 0000000..5bbddeb
--- /dev/null
+++ b/app/schemas/pricingPlanSchema.ts
@@ -0,0 +1,57 @@
+import { z } from "zod";
+import { ButtonPropsSchema } from "./buttonSchema";
+
+/**
+ * Zod schema for UPricingPlan component (basic props only)
+ * Reference: https://ui.nuxt.com/docs/components/pricing-plan#props
+ */
+export const PricingPlanPropsSchema = z.object({
+  /** The title of the pricing plan. */
+  title: z.string(),
+  /** The description text shown under the title. */
+  description: z.string().optional(),
+  /** The current price of the plan. */
+  price: z.string().optional(),
+  /**
+   * Discounted price.
+   * When set, the main price will appear with a strikethrough.
+   */
+  discount: z.string().optional(),
+  /** The unit period (e.g. /month) displayed next to price. */
+  billingCycle: z.string().optional(),
+  /** Additional billing text above the billing cycle. */
+  billingPeriod: z.string().optional(),
+  /**
+   * List of plan features.
+   * Can be an array of strings or array of objects (feature items).
+   */
+  features: z.array(z.string()).optional().default([]),
+  /** The button displayed at the bottom (ButtonProps). */
+  button: ButtonPropsSchema.optional(),
+  /**
+   * Visual variant of the pricing plan.
+   * @default "outline"
+   */
+  variant: z.enum(["soft", "solid", "outline", "subtle"]).optional().default("outline"),
+  /**
+   * Layout orientation of the component.
+   * @default "vertical"
+   */
+  orientation: z.enum(["vertical", "horizontal"]).optional().default("vertical"),
+  /** Optional tagline text displayed above price. */
+  tagline: z.string().optional(),
+  /** Terms or disclaimer text displayed below features. */
+  terms: z.string().optional(),
+  /**
+   * Highlights the pricing plan visually (adds a ring around it).
+   * @default false
+   */
+  highlight: z.boolean().optional().default(false),
+  /**
+   * Enlarges the plan card slightly for emphasis.
+   * @default false
+   */
+  scale: z.boolean().optional().default(false),
+});
+
+export type PricingPlanProps = z.infer<typeof PricingPlanPropsSchema>;
diff --git a/content.config.ts b/content.config.ts
index 073d870..49ac46c 100644
--- a/content.config.ts
+++ b/content.config.ts
@@ -1,4 +1,5 @@
 import { defineContentConfig, defineCollection, z } from "@nuxt/content";
+import { PricingPlanPropsSchema } from "./app/schemas/PricingPlanSchema";
 
 const defineIndexSchema = () =>
   z.object({
@@ -50,36 +51,7 @@ const defineWebDevSchema = () =>
         icon: z.string().optional(), // 比如 "lucide:mouse-pointer-click"
         // 你原结构里通过 createService 包装，但最终是一个对象
         plans: z
-          .array(
-            z.object({
-              title: z.string().min(1),
-              description: z.string().optional(),
-              price: z.string().optional(), // 保持为 string（例如 "RM499 起"），如需更严可用 regex
-              discount: z.string().optional(),
-              tagline: z.string().optional(),
-              highlight: z.boolean().optional().default(false),
-              features: z.array(z.string()).optional().default([]),
-              button: z
-                .object({
-                  label: z.string().min(1),
-                  href: z.string().url().optional(), // 如果你可能会传链接
-                  // 预留扩展字段（例如：variant、target 等）
-                  variant: z
-                    .enum([
-                      "link",
-                      "solid",
-                      "outline",
-                      "soft",
-                      "subtle",
-                      "ghost",
-                    ])
-                    .default("subtle"),
-                  target: z.enum(["_self", "_blank"]).optional(),
-                })
-                .partial({ href: true, variant: true, target: true }) // 全部可选除 label（如果你希望 label 也可选，可把 min(1) 去掉或改 optional）
-                .optional(),
-            })
-          )
+          .array(PricingPlanPropsSchema)
           .min(1),
         // 预留扩展字段（例如：category、tags、hidden 等）
         category: z.string().optional(),
diff --git a/i18n/locales/en-US/common.json b/i18n/locales/en-US/common.json
index 236ec9f..6d1bcd3 100644
--- a/i18n/locales/en-US/common.json
+++ b/i18n/locales/en-US/common.json
@@ -52,6 +52,11 @@
           }
         }
       }
+    },
+    "button": {
+      "cancel": "Cancel",
+      "submit": "Submit",
+      "saving": "Saving..."
     }
   }
 }
diff --git a/i18n/locales/en-US/index.json b/i18n/locales/en-US/index.json
index 7a79a43..15c2fa5 100644
--- a/i18n/locales/en-US/index.json
+++ b/i18n/locales/en-US/index.json
@@ -4,5 +4,15 @@
     "featuredProjects": {
       "viewDemo": "Visit Site"
     }
+  },
+  "webDev": {
+    "know_more_description": "I need to know more about the pricing and service about {plan} plan.",
+    "know_more_title": "Know more {plan} plan",
+    "contact_intro": "Hi — I'd like to learn more about {service} {plan} plan.",
+    "which_provides": "Which provides:",
+    "extra_remarks_title": "Besides that, I'd like to add:",
+    "remarks_placeholder": "Enter your remarks or requirements, one per line",
+    "loading_plan": "Loading plan...",
+    "whatsapp_message": "Hello! I’m interested in the **{plan}** plan under your **{service}** service.\n\nHere are the plan details:\n💰 Price: {price}\n✨ Key Features:\n{featureList}\nAdditionally, I would like to request:\n{remarkList}\nPlease provide more detailed information. Thank you!"
   }
 }
diff --git a/i18n/locales/zh-CN/common.json b/i18n/locales/zh-CN/common.json
index 2966cdf..ca809a9 100644
--- a/i18n/locales/zh-CN/common.json
+++ b/i18n/locales/zh-CN/common.json
@@ -52,6 +52,11 @@
           }
         }
       }
+    },
+    "button": {
+      "cancel": "取消",
+      "submit": "提交",
+      "saving": "保存..."
     }
   }
 }
diff --git a/i18n/locales/zh-CN/index.json b/i18n/locales/zh-CN/index.json
index e359c40..60d1abd 100644
--- a/i18n/locales/zh-CN/index.json
+++ b/i18n/locales/zh-CN/index.json
@@ -4,5 +4,15 @@
     "featuredProjects": {
       "viewDemo": "访问页面"
     }
+  },
+  "webDev": {
+    "know_more_description": "我需要了解有关 {plan} 的定价和服务的更多信息。",
+    "know_more_title": "了解更多{plan}",
+    "contact_intro": "你好——我想了解更多关于 {service} {plan}",
+    "which_provides": "其中包含：",
+    "extra_remarks_title": "除此之外，我还想补充：",
+    "remarks_placeholder": "输入您的备注或要求，每行一个",
+    "loading_plan": "配套加载中。。。",
+    "whatsapp_message": "您好！我对您的【{service}】服务中的【{plan}】方案感兴趣。\n\n方案详情：\n💰 价格：{price}\n✨ 主要功能：\n{featureList}\n另外我还需要：\n{remarkList}\n请提供更多详细信息，谢谢！"
   }
 }
diff --git a/nuxt.config.ts b/nuxt.config.ts
index ff1b4ac..771dc49 100644
--- a/nuxt.config.ts
+++ b/nuxt.config.ts
@@ -19,6 +19,11 @@ export default defineNuxtConfig({
     "@nuxtjs/i18n",
     "@nuxtjs/seo",
   ],
+  runtimeConfig: {
+    public: {
+      whatsappNumber: "+601234567890",
+    },
+  },
   css: ["@/assets/css/main.css"],
   app: {
     head: {
@@ -36,7 +41,7 @@ export default defineNuxtConfig({
         code: "en",
         iso: "en-US",
         name: "English",
-        files: ["en-US/common.json", "zh-CN/index.json"],
+        files: ["en-US/common.json", "en-US/index.json"],
       },
       {
         code: "zh-CN",
@@ -45,7 +50,7 @@ export default defineNuxtConfig({
         files: ["zh-CN/common.json", "zh-CN/index.json"],
       },
     ],
-    strategy: "no_prefix"
+    strategy: "no_prefix",
   },
   seo: {
     meta: {