diff --git a/fuellog-web/src/pages/RefuelNew.vue b/fuellog-web/src/pages/RefuelNew.vue
index 26ffa62..134cc25 100644
--- a/fuellog-web/src/pages/RefuelNew.vue
+++ b/fuellog-web/src/pages/RefuelNew.vue
@@ -1,16 +1,240 @@
 <script setup lang="ts">
-import { NEmpty } from 'naive-ui'
+import { computed, onMounted, reactive, ref } from 'vue'
+import { useRoute, useRouter } from 'vue-router'
+import {
+  NButton,
+  NCard,
+  NForm,
+  NFormItem,
+  NInput,
+  NInputNumber,
+  NSpace,
+  NSwitch,
+  NText,
+  useMessage,
+} from 'naive-ui'
+import { refuelsApi } from '@/api/refuels'
+import { useVehicleStore } from '@/stores/vehicle'
+import { FuelSelect } from '@/components/VehicleFormModal.vue'
+import { pricePerLiter, fmtPrice } from '@/utils/decimal'
+import type { RefuelCreate } from '@/api/types'
+
+const router = useRouter()
+const route = useRoute()
+const message = useMessage()
+const store = useVehicleStore()
+
+const submitting = ref(false)
+
+const form = reactive<RefuelForm>({
+  vehicle_id: 0,
+  refuel_time: new Date().toISOString(),
+  odometer: undefined,
+  fuel_type: 'gasoline',
+  liters: undefined,
+  total_amount: undefined,
+  station_name: '',
+  is_full: true,
+  remark: '',
+})
+
+// 表单态比 DTO 宽松:数字字段允许 undefined(用户还没填)
+type RefuelForm = {
+  vehicle_id: number
+  refuel_time: string
+  odometer: number | undefined
+  fuel_type: string
+  liters: number | undefined
+  total_amount: number | undefined
+  station_name: string
+  is_full: boolean
+  remark: string
+}
+
+onMounted(async () => {
+  await store.loadList()
+  // 优先用 query 上的 vehicle_id,其次 store 的当前车,再次第一辆
+  const qv = Number(route.query.vehicle_id)
+  if (qv && store.list.find((v) => v.id === qv)) {
+    form.vehicle_id = qv
+  } else if (store.currentId) {
+    form.vehicle_id = store.currentId
+  } else if (store.list.length) {
+    form.vehicle_id = store.list[0].id
+  }
+  // 默认里程:沿用车辆 current_odometer(用户多半会从这里开始加)
+  const cur = store.getCurrent()
+  if (cur && cur.current_odometer) {
+    form.odometer = cur.current_odometer
+  }
+  if (cur) {
+    form.fuel_type = cur.fuel_type
+  }
+})
+
+const realPrice = computed(() => {
+  if (!form.liters || form.liters <= 0 || !form.total_amount) return 0
+  return pricePerLiter(form.total_amount, form.liters)
+})
+
+async function onSubmit() {
+  if (submitting.value) return
+  if (!form.vehicle_id) {
+    message.warning('请先选择车辆')
+    return
+  }
+  if (!form.odometer || form.odometer < 0) {
+    message.warning('请填写当前里程')
+    return
+  }
+  if (!form.liters || form.liters <= 0) {
+    message.warning('加油量必须大于 0')
+    return
+  }
+  if (form.total_amount === undefined || form.total_amount < 0) {
+    message.warning('请填写总金额')
+    return
+  }
+  submitting.value = true
+  try {
+    const rec = await refuelsApi.create({
+      vehicle_id: form.vehicle_id,
+      refuel_time: new Date(form.refuel_time).toISOString(),
+      odometer: form.odometer,
+      fuel_type: form.fuel_type,
+      liters: form.liters,
+      total_amount: form.total_amount,
+      station_name: form.station_name,
+      is_full: form.is_full,
+      remark: form.remark,
+    })
+    message.success(`已记录,实际油价 ${fmtPrice(rec.price_per_liter)}`)
+    // 跳回首页(让用户看到统计更新)
+    setTimeout(() => router.replace({ name: 'dashboard' }), 300)
+  } catch (err) {
+    message.error((err as Error).message || '保存失败')
+  } finally {
+    submitting.value = false
+  }
+}
 </script>
 
 <template>
-  <div class="max-w-screen-md mx-auto">
-    <NEmpty description="新增加油页(骨架占位,Phase 4 接入)">
-      <div class="text-sm text-ink-soft mt-2">
-        字段:加油时间 / 里程 / 加油量 / 总金额 / 油品 / 加油站 / 是否加满 / 备注
+  <div class="max-w-screen-md mx-auto pb-24 md:pb-6">
+    <h2 class="text-xl font-semibold mb-3">记录加油</h2>
+
+    <NCard v-if="!store.list.length">
+      <NText depth="3">还没有车辆,先到「车辆」页加一辆。</NText>
+      <div class="mt-3">
+        <NButton type="primary" @click="router.push({ name: 'vehicles' })">
+          前往添加
+        </NButton>
       </div>
-      <div class="text-sm text-ink-soft mt-1">
-        实际油价(price_per_liter)由后端实时计算,前端只入 amount + liters
+    </NCard>
+
+    <NForm v-else label-placement="top">
+      <NFormItem label="车辆" required>
+        <select
+          v-model="form.vehicle_id"
+          class="w-full px-3 py-2 rounded-md border border-black/10 dark:border-white/15 bg-transparent"
+        >
+          <option v-for="v in store.list" :key="v.id" :value="v.id">
+            {{ v.name }}{{ v.default_vehicle ? ' (默认)' : '' }}
+          </option>
+        </select>
+      </NFormItem>
+
+      <NFormItem label="加油时间" required>
+        <input
+          v-model="form.refuel_time"
+          type="datetime-local"
+          class="w-full px-3 py-2 rounded-md border border-black/10 dark:border-white/15 bg-transparent"
+        />
+      </NFormItem>
+
+      <div class="grid grid-cols-2 gap-3">
+        <NFormItem label="当前里程(km)" required>
+          <NInputNumber
+            v-model:value="form.odometer"
+            :min="0"
+            :precision="1"
+            placeholder="10500"
+            class="w-full"
+          />
+        </NFormItem>
+        <NFormItem label="加油量(L)" required>
+          <NInputNumber
+            v-model:value="form.liters"
+            :min="0"
+            :precision="2"
+            placeholder="23.67"
+            class="w-full"
+          />
+        </NFormItem>
       </div>
-    </NEmpty>
+
+      <NFormItem label="总金额(元)" required>
+        <NInputNumber
+          v-model:value="form.total_amount"
+          :min="0"
+          :precision="2"
+          placeholder="176.33"
+          class="w-full"
+        />
+      </NFormItem>
+
+      <!-- 实际油价实时显示 -->
+      <div
+        v-if="realPrice > 0"
+        class="rounded-xl bg-brand-soft dark:bg-brand-soft px-4 py-3 mb-3 text-center"
+      >
+        <div class="text-xs text-ink-soft">实际油价(后端会再校验)</div>
+        <div class="text-2xl font-bold text-brand mt-0.5">
+          {{ fmtPrice(realPrice) }}
+        </div>
+      </div>
+
+      <div class="grid grid-cols-2 gap-3">
+        <NFormItem label="油品" required>
+          <FuelSelect v-model="form.fuel_type" />
+        </NFormItem>
+        <NFormItem label="是否加满">
+          <NSwitch v-model:value="form.is_full" />
+        </NFormItem>
+      </div>
+
+      <NFormItem label="加油站">
+        <NInput v-model:value="form.station_name" placeholder="中石化 望京" maxlength="128" />
+      </NFormItem>
+
+      <NFormItem label="备注">
+        <NInput
+          v-model:value="form.remark"
+          type="textarea"
+          :autosize="{ minRows: 2, maxRows: 4 }"
+          placeholder="选填"
+          maxlength="512"
+        />
+      </NFormItem>
+    </NForm>
+
+    <!-- 移动端底部固定保存按钮,desktop 普通按钮 -->
+    <div
+      class="fixed md:static bottom-0 inset-x-0 p-3 md:p-0 bg-surface md:bg-transparent border-t md:border-0 border-black/5 dark:border-white/10 pb-[env(safe-area-inset-bottom)]"
+    >
+      <NSpace vertical>
+        <NButton
+          type="primary"
+          size="large"
+          block
+          :loading="submitting"
+          :disabled="!store.list.length"
+          @click="onSubmit"
+        >
+          保存
+        </NButton>
+        <NButton block @click="router.back">取消</NButton>
+      </NSpace>
+    </div>
   </div>
 </template>