From 0f3e7b8a56fa3b5bc470caf9392e4e5d2ce51588 Mon Sep 17 00:00:00 2001
From: skytek_xinliang <carl@skytek.com.tw>
Date: Fri, 18 Sep 2026 09:58:52 +0800
Subject: [PATCH] feat: bmi

---
 .../src/api/physical-fitness.ts               |  10 +
 app/citizen-frontend/src/api/types.ts         |  10 +
 .../body-composition/BmiAnalysisCard.vue      | 206 ++++++++++++++++++
 .../body-composition/BodyFatAnalysisCard.vue  |  73 +++++++
 .../src/components/layout/DefaultLayout.vue   |   9 +
 .../src/components/layout/PageHeading.vue     |  56 +++++
 app/citizen-frontend/src/config/features.ts   |  12 +-
 .../src/data/who-bmi-standards.json           |  17 ++
 .../src/data/whoBmiStandards.ts               |  10 +
 .../src/pages/body-composition.vue            |  87 ++++++++
 app/citizen-frontend/src/pages/course.vue     |  15 +-
 app/citizen-frontend/src/pages/index.vue      |   8 +
 .../src/pages/introduction.vue                |  10 +-
 app/citizen-frontend/src/router/index.ts      |  18 ++
 .../src/utils/body-composition-status.ts      |  19 ++
 15 files changed, 534 insertions(+), 26 deletions(-)
 create mode 100644 app/citizen-frontend/src/components/body-composition/BmiAnalysisCard.vue
 create mode 100644 app/citizen-frontend/src/components/body-composition/BodyFatAnalysisCard.vue
 create mode 100644 app/citizen-frontend/src/components/layout/PageHeading.vue
 create mode 100644 app/citizen-frontend/src/data/who-bmi-standards.json
 create mode 100644 app/citizen-frontend/src/data/whoBmiStandards.ts
 create mode 100644 app/citizen-frontend/src/pages/body-composition.vue
 create mode 100644 app/citizen-frontend/src/utils/body-composition-status.ts

diff --git a/app/citizen-frontend/src/api/physical-fitness.ts b/app/citizen-frontend/src/api/physical-fitness.ts
index c60a525..4792d48 100644
--- a/app/citizen-frontend/src/api/physical-fitness.ts
+++ b/app/citizen-frontend/src/api/physical-fitness.ts
@@ -1,4 +1,5 @@
 import type {
+  BodyCompositionResponse,
   GeneratePhysicalFitnessResponse,
   PhysicalFitnessResponse,
 } from "./types";
@@ -21,3 +22,12 @@ export function generatePhysicalFitness(
     .post(`v1/physical-fitness/generate/${encodeURIComponent(userID)}`)
     .json<GeneratePhysicalFitnessResponse>();
 }
+
+/** 取得指定使用者的身體組成分析。 */
+export function fetchBodyComposition(
+  userCode: string,
+): Promise<BodyCompositionResponse> {
+  return api
+    .get(`v1/physical-fitness/body-composition/${encodeURIComponent(userCode)}`)
+    .json<BodyCompositionResponse>();
+}
diff --git a/app/citizen-frontend/src/api/types.ts b/app/citizen-frontend/src/api/types.ts
index 4d06ef9..ffea34c 100644
--- a/app/citizen-frontend/src/api/types.ts
+++ b/app/citizen-frontend/src/api/types.ts
@@ -28,6 +28,16 @@ export interface GeneratePhysicalFitnessResponse {
   message: string;
 }
 
+/** PhysicalFitnessController 回傳的身體組成分析。 */
+export interface BodyCompositionResponse {
+  heightCm: number;
+  weightKg: number;
+  bmi: number;
+  bmiStatus: string;
+  bodyFatPercent: number;
+  bodyFatRange: string;
+}
+
 /** 性別 */
 export type Gender = "male" | "female";
 
diff --git a/app/citizen-frontend/src/components/body-composition/BmiAnalysisCard.vue b/app/citizen-frontend/src/components/body-composition/BmiAnalysisCard.vue
new file mode 100644
index 0000000..51bff7c
--- /dev/null
+++ b/app/citizen-frontend/src/components/body-composition/BmiAnalysisCard.vue
@@ -0,0 +1,206 @@
+<script setup lang="ts">
+import { computed } from "vue";
+import { WHO_BMI_STANDARDS } from "@/data/whoBmiStandards";
+import {
+  BODY_COMPOSITION_COLORS,
+  getBmiTone,
+} from "@/utils/body-composition-status";
+
+const props = defineProps<{
+  weightKg: number;
+  bmi: number;
+  bmiStatus: string;
+}>();
+
+const statusColor = computed(
+  () => BODY_COMPOSITION_COLORS[getBmiTone(props.bmi)],
+);
+
+const recommendation = computed(() => {
+  if (props.bmi < 18.5) {
+    return "體重低於正常範圍，建議留意營養攝取與健康狀況。";
+  }
+
+  if (props.bmi < 25) {
+    return "體重位於正常範圍，請持續維持均衡飲食與規律運動。";
+  }
+
+  if (props.bmi < 30) {
+    return "體重已超過正常範圍，建議適度調整體重。";
+  }
+
+  return "您的 BMI 已進入肥胖範圍，建議諮詢專業人員並逐步調整生活習慣。";
+});
+
+function formatMeasurement(value: number): string {
+  return Number.isFinite(value) ? value.toFixed(1) : "--";
+}
+</script>
+
+<template>
+  <v-card class="analysis-card rounded-xl" elevation="1">
+    <v-card-title class="text-h5 font-weight-black text-center pt-6">
+      體重與 BMI 分析
+    </v-card-title>
+
+    <v-card-text class="pa-4 pa-sm-6">
+      <div class="metrics-grid mb-5">
+        <div class="metric-cell text-center">
+          <div class="text-body-large text-grey-darken-2 mb-2">體重</div>
+          <div class="metric-value text-grey-darken-4">
+            {{ formatMeasurement(weightKg) }}
+            <span class="metric-unit">公斤</span>
+          </div>
+        </div>
+
+        <div class="metric-cell text-center">
+          <div class="text-body-large text-grey-darken-2 mb-2">BMI</div>
+          <div class="metric-value" :style="{ color: statusColor }">
+            {{ formatMeasurement(bmi) }}
+          </div>
+        </div>
+      </div>
+
+      <div class="d-flex flex-wrap justify-center align-center ga-2 mb-5">
+        <span class="text-title-medium">您的 BMI 屬於</span>
+        <v-chip
+          class="semantic-chip font-weight-black"
+          :color="statusColor"
+          label
+          size="large"
+          variant="flat"
+        >
+          {{ bmiStatus }}
+        </v-chip>
+      </div>
+
+      <v-alert
+        class="recommendation-alert mb-6"
+        :color="statusColor"
+        icon="mdi-bullhorn-outline"
+        variant="tonal"
+      >
+        {{ recommendation }}
+      </v-alert>
+
+      <v-sheet class="who-panel rounded-xl pa-4" color="grey-lighten-4">
+        <div class="who-title text-center mb-1">世界衛生組織 WHO 定義</div>
+        <div class="who-formula text-grey-darken-2 text-center mb-5">
+          （BMI = 體重 ÷ 身高²）
+        </div>
+
+        <div class="who-standards">
+          <div
+            v-for="standard in WHO_BMI_STANDARDS"
+            :key="standard.label"
+            class="who-standard rounded-lg text-center"
+            :style="{
+              backgroundColor: BODY_COMPOSITION_COLORS[standard.tone],
+            }"
+          >
+            <div class="who-standard-label">{{ standard.label }}</div>
+            <div class="who-standard-range">{{ standard.range }}</div>
+          </div>
+        </div>
+
+        <p class="who-note text-grey-darken-2 text-center mb-0 mt-5">
+          BMI 只是初步判斷，需搭配體脂率<br
+            class="d-none d-sm-inline"
+          />與肌肉量進一步分析。
+        </p>
+      </v-sheet>
+    </v-card-text>
+  </v-card>
+</template>
+
+<style scoped>
+.analysis-card {
+  border: 1px solid rgba(var(--v-theme-primary), 0.24);
+}
+
+.metrics-grid {
+  display: grid;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+}
+
+.metric-cell {
+  min-width: 0;
+  padding: 8px 12px;
+}
+
+.metric-cell + .metric-cell {
+  border-left: 1px solid rgba(0, 0, 0, 0.14);
+}
+
+.metric-value {
+  font-size: clamp(2.25rem, 10vw, 3.125rem);
+  font-weight: 900;
+  line-height: 1.1;
+  white-space: nowrap;
+}
+
+.metric-unit {
+  font-size: clamp(0.875rem, 3.5vw, 1.25rem);
+  font-weight: 500;
+}
+
+.recommendation-alert {
+  font-size: 1rem;
+  line-height: 1.6;
+}
+
+.semantic-chip {
+  color: #252525 !important;
+}
+
+.who-title {
+  font-size: clamp(1.25rem, 5vw, 1.65rem);
+  font-weight: 700;
+  line-height: 1.35;
+}
+
+.who-formula,
+.who-note {
+  font-size: clamp(1rem, 4vw, 1.25rem);
+  line-height: 1.55;
+}
+
+.who-standards {
+  display: grid;
+  grid-template-columns: repeat(3, minmax(0, 1fr));
+  gap: 8px;
+}
+
+.who-standard {
+  min-width: 0;
+  padding: 18px 6px 16px;
+  color: #2b2b2b;
+}
+
+.who-standard-label {
+  margin-bottom: 4px;
+  font-size: clamp(1.2rem, 5vw, 1.55rem);
+  font-weight: 500;
+}
+
+.who-standard-range {
+  font-size: clamp(0.92rem, 3.8vw, 1.12rem);
+  font-weight: 800;
+  line-height: 1.25;
+  white-space: nowrap;
+}
+
+@media (max-width: 420px) {
+  .metric-cell {
+    padding-inline: 6px;
+  }
+
+  .who-panel {
+    padding-inline: 12px !important;
+  }
+
+  .who-standards {
+    gap: 6px;
+  }
+}
+</style>
diff --git a/app/citizen-frontend/src/components/body-composition/BodyFatAnalysisCard.vue b/app/citizen-frontend/src/components/body-composition/BodyFatAnalysisCard.vue
new file mode 100644
index 0000000..4b7a557
--- /dev/null
+++ b/app/citizen-frontend/src/components/body-composition/BodyFatAnalysisCard.vue
@@ -0,0 +1,73 @@
+<script setup lang="ts">
+import { computed } from "vue";
+import {
+  BODY_COMPOSITION_COLORS,
+  getBodyFatTone,
+} from "@/utils/body-composition-status";
+
+const props = defineProps<{
+  bodyFatPercent: number;
+  bodyFatRange: string;
+}>();
+
+const statusColor = computed(
+  () => BODY_COMPOSITION_COLORS[getBodyFatTone(props.bodyFatRange)],
+);
+
+const formattedBodyFatPercent = computed(() =>
+  Number.isFinite(props.bodyFatPercent)
+    ? props.bodyFatPercent.toFixed(1)
+    : "--",
+);
+</script>
+
+<template>
+  <v-card class="analysis-card rounded-xl mt-4" elevation="1">
+    <v-card-title class="text-h5 font-weight-black text-center pt-6">
+      體脂率分析
+    </v-card-title>
+
+    <v-card-text class="text-center pa-6">
+      <div class="text-title-medium text-grey-darken-2 mb-2">體脂率</div>
+      <div class="body-fat-value mb-6" :style="{ color: statusColor }">
+        {{ formattedBodyFatPercent }}<span class="body-fat-unit">%</span>
+      </div>
+
+      <div class="d-flex flex-wrap justify-center align-center ga-2">
+        <span class="text-title-medium">您的體脂率屬於</span>
+        <v-chip
+          class="semantic-chip font-weight-black"
+          :color="statusColor"
+          label
+          size="large"
+          variant="flat"
+        >
+          {{ bodyFatRange }}
+        </v-chip>
+        <span class="text-title-medium">範圍</span>
+      </div>
+    </v-card-text>
+  </v-card>
+</template>
+
+<style scoped>
+.analysis-card {
+  border: 1px solid rgba(var(--v-theme-primary), 0.24);
+}
+
+.body-fat-value {
+  font-size: clamp(2.25rem, 10vw, 3.125rem);
+  font-weight: 900;
+  line-height: 1;
+}
+
+.semantic-chip {
+  color: #252525 !important;
+}
+
+.body-fat-unit {
+  margin-left: 6px;
+  font-size: clamp(1.25rem, 5vw, 2rem);
+  font-weight: 500;
+}
+</style>
diff --git a/app/citizen-frontend/src/components/layout/DefaultLayout.vue b/app/citizen-frontend/src/components/layout/DefaultLayout.vue
index 08aa01b..173f720 100644
--- a/app/citizen-frontend/src/components/layout/DefaultLayout.vue
+++ b/app/citizen-frontend/src/components/layout/DefaultLayout.vue
@@ -109,6 +109,15 @@
           @click="drawer = false"
         />
 
+        <v-list-item
+          v-if="store.isLoggedIn"
+          color="primary"
+          prepend-icon="mdi-scale-bathroom"
+          title="身體數值分析"
+          to="/body-composition"
+          @click="drawer = false"
+        />
+
         <v-list-item
           color="primary"
           prepend-icon="mdi-information-outline"
diff --git a/app/citizen-frontend/src/components/layout/PageHeading.vue b/app/citizen-frontend/src/components/layout/PageHeading.vue
new file mode 100644
index 0000000..7128e7d
--- /dev/null
+++ b/app/citizen-frontend/src/components/layout/PageHeading.vue
@@ -0,0 +1,56 @@
+<script setup lang="ts">
+withDefaults(
+  defineProps<{
+    title: string;
+    backTo?: string;
+  }>(),
+  {
+    backTo: "/",
+  },
+);
+</script>
+
+<template>
+  <header class="page-heading d-flex align-center mb-2">
+    <v-btn
+      aria-label="返回首頁"
+      class="flex-shrink-0"
+      color="primary"
+      prepend-icon="mdi-arrow-left"
+      rounded="pill"
+      :to="backTo"
+      variant="outlined"
+    >
+      返回
+    </v-btn>
+    <h1 class="page-title text-primary">{{ title }}</h1>
+  </header>
+</template>
+
+<style scoped>
+.page-heading {
+  position: relative;
+  min-height: 44px;
+}
+
+.page-title {
+  position: absolute;
+  left: 50%;
+  width: min(60%, 320px);
+  margin: 0;
+  font-size: clamp(1.25rem, 5vw, 1.75rem);
+  font-weight: 900;
+  line-height: 1.2;
+  text-align: center;
+  transform: translateX(-50%);
+}
+
+@media (max-width: 420px) {
+  .page-title {
+    position: static;
+    width: auto;
+    margin-left: 12px;
+    transform: none;
+  }
+}
+</style>
diff --git a/app/citizen-frontend/src/config/features.ts b/app/citizen-frontend/src/config/features.ts
index b4abef6..a1d80ec 100644
--- a/app/citizen-frontend/src/config/features.ts
+++ b/app/citizen-frontend/src/config/features.ts
@@ -1,6 +1,6 @@
-export const APPOINTMENT_ENABLED = false
-export const BOTTOM_NAVIGATION_ENABLED = false
-export const CHECKIN_ENABLED = false
-export const EXERCISE_DURATION_RECOMMENDATION_ENABLED = false
-export const RADAR_ENABLED = false
-export const SELF_ASSESSMENT_ENABLED = false
+export const APPOINTMENT_ENABLED = false;
+export const BOTTOM_NAVIGATION_ENABLED = false;
+export const CHECKIN_ENABLED = false;
+export const EXERCISE_DURATION_RECOMMENDATION_ENABLED = false;
+export const RADAR_ENABLED = false;
+export const SELF_ASSESSMENT_ENABLED = false;
diff --git a/app/citizen-frontend/src/data/who-bmi-standards.json b/app/citizen-frontend/src/data/who-bmi-standards.json
new file mode 100644
index 0000000..0fb7632
--- /dev/null
+++ b/app/citizen-frontend/src/data/who-bmi-standards.json
@@ -0,0 +1,17 @@
+[
+  {
+    "label": "正常",
+    "range": "18.5–24.9",
+    "tone": "normal"
+  },
+  {
+    "label": "過重",
+    "range": "25.0–29.9",
+    "tone": "caution"
+  },
+  {
+    "label": "肥胖",
+    "range": "30.0以上",
+    "tone": "danger"
+  }
+]
diff --git a/app/citizen-frontend/src/data/whoBmiStandards.ts b/app/citizen-frontend/src/data/whoBmiStandards.ts
new file mode 100644
index 0000000..811d0c2
--- /dev/null
+++ b/app/citizen-frontend/src/data/whoBmiStandards.ts
@@ -0,0 +1,10 @@
+import whoBmiStandards from "./who-bmi-standards.json";
+import type { BodyCompositionTone } from "@/utils/body-composition-status";
+
+export interface WhoBmiStandard {
+  label: string;
+  range: string;
+  tone: BodyCompositionTone;
+}
+
+export const WHO_BMI_STANDARDS = whoBmiStandards as WhoBmiStandard[];
diff --git a/app/citizen-frontend/src/pages/body-composition.vue b/app/citizen-frontend/src/pages/body-composition.vue
new file mode 100644
index 0000000..5d9b22f
--- /dev/null
+++ b/app/citizen-frontend/src/pages/body-composition.vue
@@ -0,0 +1,87 @@
+<script setup lang="ts">
+import { onMounted, shallowRef } from "vue";
+import { useRouter } from "vue-router";
+import type { BodyCompositionResponse } from "@/api/types";
+import { fetchBodyComposition } from "@/api/physical-fitness";
+import BmiAnalysisCard from "@/components/body-composition/BmiAnalysisCard.vue";
+import BodyFatAnalysisCard from "@/components/body-composition/BodyFatAnalysisCard.vue";
+import Layout from "@/components/layout/DefaultLayout.vue";
+import PageHeading from "@/components/layout/PageHeading.vue";
+import { useAppStore } from "@/stores/app";
+import { getApiErrorMessage } from "@/utils/api-error";
+
+const store = useAppStore();
+const router = useRouter();
+const bodyComposition = shallowRef<BodyCompositionResponse | null>(null);
+const loading = shallowRef(false);
+const errorMessage = shallowRef("");
+
+async function loadBodyComposition() {
+  const userCode = store.userID.trim();
+  if (!userCode) {
+    await router.replace({
+      name: "login",
+      query: { redirect: "/body-composition" },
+    });
+    return;
+  }
+
+  loading.value = true;
+  errorMessage.value = "";
+
+  try {
+    bodyComposition.value = await fetchBodyComposition(userCode);
+  } catch (error) {
+    errorMessage.value = getApiErrorMessage(
+      error,
+      "身體數值資料載入失敗，請稍後再試。",
+    );
+  } finally {
+    loading.value = false;
+  }
+}
+
+onMounted(loadBodyComposition);
+</script>
+
+<template>
+  <Layout>
+    <template #main>
+      <div class="max-width-mobile pb-2">
+        <PageHeading title="身體數值分析" />
+
+        <template v-if="loading">
+          <v-skeleton-loader class="rounded-xl mb-4" type="article, table" />
+          <v-skeleton-loader class="rounded-xl" type="article" />
+        </template>
+
+        <v-alert
+          v-else-if="errorMessage"
+          class="rounded-xl"
+          icon="mdi-alert-circle-outline"
+          type="error"
+          variant="tonal"
+        >
+          {{ errorMessage }}
+          <template #append>
+            <v-btn size="small" variant="text" @click="loadBodyComposition">
+              重試
+            </v-btn>
+          </template>
+        </v-alert>
+
+        <template v-else-if="bodyComposition">
+          <BmiAnalysisCard
+            :bmi="bodyComposition.bmi"
+            :bmi-status="bodyComposition.bmiStatus"
+            :weight-kg="bodyComposition.weightKg"
+          />
+          <BodyFatAnalysisCard
+            :body-fat-percent="bodyComposition.bodyFatPercent"
+            :body-fat-range="bodyComposition.bodyFatRange"
+          />
+        </template>
+      </div>
+    </template>
+  </Layout>
+</template>
diff --git a/app/citizen-frontend/src/pages/course.vue b/app/citizen-frontend/src/pages/course.vue
index a031ff3..8a904a9 100644
--- a/app/citizen-frontend/src/pages/course.vue
+++ b/app/citizen-frontend/src/pages/course.vue
@@ -2,19 +2,7 @@
   <Layout>
     <template #main>
       <template v-if="store.groupLoaded">
-        <!-- 頁面標題：刻意縮小，把版面讓給下方的組別 -->
-        <div class="d-flex align-center mb-3">
-          <v-icon
-            class="mr-2"
-            color="primary"
-            icon="mdi-calendar-week"
-            size="18"
-          />
-
-          <span class="text-title-small font-weight-bold text-grey-darken-1"
-            >課程建議</span
-          >
-        </div>
+        <PageHeading title="課程建議" />
 
         <!-- 體適能組別：本頁所有內容都依它而定，因此獨立成一張顯眼的卡片 -->
         <v-card
@@ -401,6 +389,7 @@
 import type { TimeSlot, YesNo } from "@/api/types";
 import { computed, onMounted, ref } from "vue";
 import Layout from "@/components/layout/DefaultLayout.vue";
+import PageHeading from "@/components/layout/PageHeading.vue";
 import { EXERCISE_DURATION_RECOMMENDATION_ENABLED } from "@/config/features";
 import { COURSE_DETAIL } from "@/data/courseDetail";
 import { useCourseStore } from "@/stores/course";
diff --git a/app/citizen-frontend/src/pages/index.vue b/app/citizen-frontend/src/pages/index.vue
index 4e64164..f48232c 100644
--- a/app/citizen-frontend/src/pages/index.vue
+++ b/app/citizen-frontend/src/pages/index.vue
@@ -104,6 +104,14 @@
               title="重新計算體適能評級"
               @click="openGenerateDialog"
             />
+
+            <ModuleRouterCard
+              description="查看體重、BMI 與體脂率的個人分析結果。"
+              icon="mdi-scale-bathroom"
+              icon-color="primary"
+              title="身體數值分析"
+              to="/body-composition"
+            />
           </div>
 
           <!-- 課程建議入口 -->
diff --git a/app/citizen-frontend/src/pages/introduction.vue b/app/citizen-frontend/src/pages/introduction.vue
index 5b38eaa..8cef58c 100644
--- a/app/citizen-frontend/src/pages/introduction.vue
+++ b/app/citizen-frontend/src/pages/introduction.vue
@@ -5,6 +5,7 @@ import sportsEmpowerHubImage from "@/assets/introduction/expo_park_open/open_01.
 import fitnessResearchImage from "@/assets/introduction/expo_park_open/open_02.jpg";
 import expoParkZonesImage from "@/assets/introduction/expo_park_open/open_03.jpg";
 import Layout from "@/components/layout/DefaultLayout.vue";
+import PageHeading from "@/components/layout/PageHeading.vue";
 
 const slides = [
   {
@@ -31,14 +32,9 @@ const activeSlide = shallowRef(0);
 <template>
   <Layout>
     <template #main>
-      <v-card variant="flat">
-        <v-card-title
-          class="font-weight-bold text-primary d-flex align-center py-0"
-        >
-          <v-icon class="mr-4" color="accent" icon="mdi-information-outline" />
-          計畫簡介
-        </v-card-title>
+      <PageHeading title="計畫簡介" />
 
+      <v-card variant="flat">
         <div class="carousel-shell">
           <v-carousel
             v-model="activeSlide"
diff --git a/app/citizen-frontend/src/router/index.ts b/app/citizen-frontend/src/router/index.ts
index 55511e0..db9f2b3 100644
--- a/app/citizen-frontend/src/router/index.ts
+++ b/app/citizen-frontend/src/router/index.ts
@@ -1,5 +1,6 @@
 import { createRouter, createWebHistory } from "vue-router";
 import Appointment from "@/pages/appointment.vue";
+import BodyComposition from "@/pages/body-composition.vue";
 import Checkin from "@/pages/checkin.vue";
 import CheckinDetail from "@/pages/checkinDetail.vue";
 import Course from "@/pages/course.vue";
@@ -53,6 +54,16 @@ const router = createRouter({
       component: Profile,
       meta: { requiresAuth: true, title: "個人資料修改｜運動玩轉健康力" },
     },
+    {
+      path: "/body-composition",
+      name: "body-composition",
+      component: BodyComposition,
+      meta: {
+        requiresAuth: true,
+        requiresUserID: true,
+        title: "身體數值分析｜運動玩轉健康力",
+      },
+    },
     {
       path: "/appointment",
       name: "appointment",
@@ -106,6 +117,13 @@ router.beforeEach(async (to) => {
     };
   }
 
+  if (to.meta.requiresUserID && !store.userID.trim()) {
+    return {
+      name: "login",
+      query: { redirect: to.fullPath },
+    };
+  }
+
   if (to.meta.requiresFitnessGroup) {
     const courseStore = useCourseStore();
 
diff --git a/app/citizen-frontend/src/utils/body-composition-status.ts b/app/citizen-frontend/src/utils/body-composition-status.ts
new file mode 100644
index 0000000..bb85beb
--- /dev/null
+++ b/app/citizen-frontend/src/utils/body-composition-status.ts
@@ -0,0 +1,19 @@
+export type BodyCompositionTone = "normal" | "caution" | "danger";
+
+export const BODY_COMPOSITION_COLORS: Record<BodyCompositionTone, string> = {
+  normal: "#9ac36d",
+  caution: "#fbd051",
+  danger: "#ef6b6b",
+};
+
+export function getBmiTone(bmi: number): BodyCompositionTone {
+  if (bmi >= 18.5 && bmi < 25) return "normal";
+  if (bmi >= 30) return "danger";
+  return "caution";
+}
+
+export function getBodyFatTone(bodyFatRange: string): BodyCompositionTone {
+  if (/肥胖|過高|高危|危險/.test(bodyFatRange)) return "danger";
+  if (/標準|健康|正常/.test(bodyFatRange)) return "normal";
+  return "caution";
+}