diff --git a/docs/newsletter_integration_memo.md b/docs/newsletter_integration_memo.md
new file mode 100644
index 0000000..25f899e
--- /dev/null
+++ b/docs/newsletter_integration_memo.md
@@ -0,0 +1,156 @@
+# 電子報介接備忘錄（租戶端 / Wagtail）
+
+最後更新：2026-02-11
+
+## 1. 目標與前提
+
+本備忘錄用於整理租戶端（Wagtail）接下來的實作方向，重點是先完成可運行流程，再逐步補完細節。
+
+## 2. 已確認決策（本次會議結論）
+
+1. Member Center 雖為共用平台，但目前只有一個租戶。
+2. 現階段「發確認信」與「訂閱/退訂頁面」先做在 Wagtail。
+3. Wagtail 與 Member Center 的溝通以 API 為主。
+4. SMTP relay 僅負責寄出一次，重送、token 安全、簽章等由其他系統或工具負責，不屬 Wagtail 責任。
+5. 工作大項與順序固定為：
+   1. 準備工作（電子報系統設定）
+   2. 訂閱流程
+   3. 退訂流程
+   4. 電子報 app
+   5. 發信流程（排程）
+
+## 3. 工作大項與執行順序（含範圍）
+
+## 3.1 準備工作（電子報系統設定，第一優先）
+
+範圍：
+- 建立 Member Center 連線設定（base URL、tenant_id、list_id、API timeout 等）。
+- 建立 Send Engine 連線設定（base URL、OAuth scope、API timeout 等）。
+- 建立一般發信設定（SMTP relay、寄件者名稱/信箱、reply-to、預設編碼等）。
+- 建立模板設定：
+  - 訂閱確認信 template
+  - 訂閱確認（成功）頁面 template
+  - 取消訂閱頁面 template
+
+重點：
+- 設定集中管理，避免散落在程式碼或多處後台欄位。
+- 區分「系統連線設定」與「內容模板設定」，便於權限與維運。
+
+完成標準（DoD）：
+- 可在單一設定入口完成上述設定並通過基本驗證。
+- 模板可被後續訂閱/退訂流程直接引用。
+
+## 3.2 訂閱流程（第二優先）
+
+範圍：
+- 在站台頁面區塊（暫定 Footer）提供 email 訂閱入口。
+- 後端接收 email，呼叫 Member Center 訂閱 API。
+- 由 Wagtail 送出訂閱確認信（透過 SMTP relay）。
+- 使用者點信內連結回到 Wagtail 確認頁。
+- 確認頁自動呼叫 Member Center 確認 API。
+
+重點：
+- 流程中 token 需一路帶入與驗證。
+- 確認信內容採 HTML（可附純文字 fallback）。
+
+完成標準（DoD）：
+- 可從站台成功發起訂閱。
+- 可收到確認信並完成確認。
+- 確認成功/失敗頁有明確訊息與追蹤記錄。
+
+## 3.3 退訂流程（第三優先）
+
+範圍：
+- 電子報底部提供退訂連結，導向 Wagtail 退訂頁。
+- 進入退訂頁時，先向 Member Center 申請退訂 token。
+- 使用者按確認退訂後，呼叫 Member Center 退訂 API 完成流程。
+
+重點：
+- token 不做長期保存。
+- 頁面需可處理 token 失效/不存在等錯誤狀態。
+
+完成標準（DoD）：
+- 使用者能從信件連結完成退訂。
+- 退訂結果頁可正確呈現成功/失敗狀態。
+
+## 3.4 電子報 app（第四優先）
+
+範圍：
+- 在 Wagtail 後台提供電子報內容管理能力。
+- 提供 HTML 編輯器建立/編修內容。
+- 支援可替換參數（例如 token、email）。
+
+重點：
+- 編輯器中的連結參數以佔位符表示，發送前由 backend 替換。
+- 若有 Member Center API 相關連結需在內容中可配置，也採相同參數機制。
+
+完成標準（DoD）：
+- 編輯器可存草稿與更新內容。
+- 內容中參數可在送出前正確替換。
+
+## 3.5 發信流程（排程，第五優先）
+
+範圍：
+- 可建立發送任務與排程時間。
+- 排程前可持續編輯內容與調整時間。
+- 到時觸發時：先取 Member Center auth，再將內容包固定 header/footer，送到 Send Engine。
+
+重點：
+- 「內容定稿」與「實際送出」拆開。
+- 發送前的模板組裝由 Wagtail backend 負責。
+
+完成標準（DoD）：
+- 排程到點可成功建立 Send Engine send job。
+- 失敗可記錄原因並可人工重試。
+
+## 4. 參數替換規則（先行約定）
+
+建議佔位符格式（待實作時可再定版）：
+- `{{token}}`
+- `{{email}}`
+- `{{list_id}}`
+- `{{tenant_id}}`
+- `{{confirm_url}}`
+- `{{unsubscribe_url}}`
+
+替換時機：
+- 發信前 backend 最後一步統一替換。
+
+注意事項：
+- URL 參數需做 URL encode。
+- 缺少必要參數時，中止發送並記錄可追蹤錯誤。
+
+## 5. URL 與系統歸屬標註規範（文件撰寫規則）
+
+後續文件凡提到網址，必須明確標註「是哪個系統」：
+
+1. Wagtail（租戶站台）網址
+- 例：`https://{tenant-site}/newsletter/confirm?token=...`
+- 用途：使用者互動頁、站台前台/後台頁面。
+
+2. Member Center API 網址
+- 例：`https://{member-center}/newsletter/subscribe`
+- 用途：訂閱、確認、退訂 token、退訂等 API。
+
+3. Send Engine API 網址
+- 例：`https://{send-engine}/api/send-jobs`
+- 用途：建立/查詢/取消發信任務。
+
+4. SMTP Relay 連線端點
+- 用途：Wagtail 寄送確認信。
+- 備註：僅作為寄送通道，不承擔重送與安全機制。
+
+## 6. 非 Wagtail 責任邊界（本階段）
+
+以下不納入目前 Wagtail 工作範圍：
+- SMTP 後續重送策略。
+- token 簽章與高階安全策略。
+- 跨系統風控與防濫用機制。
+
+## 7. 下一步（實作啟動清單）
+
+1. 先完成電子報系統設定（Member Center / Send Engine / SMTP / 模板）。
+2. 再完成訂閱流程 API 串接與確認頁。
+3. 再完成退訂頁與退訂 API 串接。
+4. 建立電子報 app 與 HTML 編輯器資料模型。
+5. 最後接排程任務與 Send Engine 發信。
diff --git a/innovedus_cms/home/models.py b/innovedus_cms/home/models.py
index d62d0ba..d88b933 100644
--- a/innovedus_cms/home/models.py
+++ b/innovedus_cms/home/models.py
@@ -23,6 +23,19 @@ BLOCK_SIZE = _get_env_int("HOMEPAGE_BLOCK_SIZE", 7) # Default to 7 articles in b
 HORIZON_SIZE = _get_env_int("HOMEPAGE_HORIZON_SIZE", 4) # Default to 4 articles in horizon layout
 PAGE_SIZE = _get_env_int("HOMEPAGE_PAGE_SIZE", 10) # Default to 10 articles per page for pagination
 CATEGORY_HOT_SIZE = _get_env_int("CATEGORY_HOT_SIZE", 6) # Default to 4 articles in category hot layout
+RELATED_ARTICLES_SIZE = _get_env_int("RELATED_ARTICLES_SIZE", 4) # Default to 4 related articles
+
+class BreadcrumbMixin:
+    def build_breadcrumbs(self):
+        site = self.get_site()
+        site_root = site.root_page if site else None
+        if site_root:
+            ancestors = self.get_ancestors().specific().filter(depth__gt=site_root.depth)
+        else:
+            ancestors = self.get_ancestors().specific()
+        breadcrumbs = list(ancestors) + [self]
+        return breadcrumbs, site_root
+
 
 # Mixin for Category-related functionality
 class CategoryMixin:
@@ -70,17 +83,6 @@ class CategoryMixin:
             )
         return blocks
 
-    # Build breadcrumbs
-    def build_breadcrumbs(self):
-        site = self.get_site()
-        site_root = site.root_page if site else None
-        if site_root:
-            ancestors = self.get_ancestors().specific().filter(depth__gt=site_root.depth)
-        else:
-            ancestors = self.get_ancestors().specific()
-        breadcrumbs = list(ancestors) + [self]
-        return breadcrumbs, site_root
-
     # Get latest articles
     def get_latest_articles(self, request=None):
         latest_page = LatestPage.objects.first()
@@ -196,7 +198,7 @@ class HomePage(Page, CategoryMixin):
         return context
 
 
-class LatestPage(Page, CategoryMixin):
+class LatestPage(Page, CategoryMixin, BreadcrumbMixin):
     template = "home/category_page.html"
 
     def get_context(self, request):
@@ -208,7 +210,7 @@ class LatestPage(Page, CategoryMixin):
         return context
 
 
-class TrendingPage(Page, CategoryMixin):
+class TrendingPage(Page, CategoryMixin, BreadcrumbMixin):
     template = "home/category_page.html"
 
     def get_context(self, request):
@@ -220,7 +222,7 @@ class TrendingPage(Page, CategoryMixin):
         return context
 
 
-class CategoryPage(Page, CategoryMixin):
+class CategoryPage(Page, CategoryMixin, BreadcrumbMixin):
     @property
     def has_subcategories(self):
         return self.get_children().type(CategoryPage).live().exists()
@@ -254,7 +256,7 @@ class ArticlePageTag(TaggedItemBase):
         on_delete=models.CASCADE,
     )
 
-class ArticlePage(Page):
+class ArticlePage(Page, BreadcrumbMixin):
     cover_image = models.ForeignKey(
         "wagtailimages.Image",
         null=True,
@@ -308,6 +310,16 @@ class ArticlePage(Page):
     def get_context(self, request):
         context = super().get_context(request)
 
+        breadcrumbs, site_root = self.build_breadcrumbs()
+        context["breadcrumbs"] = breadcrumbs
+        context["breadcrumb_root"] = site_root
+        category_crumbs = [
+            crumb
+            for crumb in breadcrumbs
+            if crumb.id != self.id and (not site_root or crumb.id != site_root.id)
+        ]
+        context["article_category"] = category_crumbs[-1] if category_crumbs else None
+
         tag_ids = list(self.tags.values_list("id", flat=True))
         if tag_ids:
             related_articles = (
@@ -315,7 +327,7 @@ class ArticlePage(Page):
                 .exclude(id=self.id)
                 .filter(tags__id__in=tag_ids)
                 .distinct()
-                .order_by("-date", "-id")[:4] 
+                .order_by("-date", "-id")[:RELATED_ARTICLES_SIZE]
             )
         else:
             related_articles = ArticlePage.objects.none()
diff --git a/innovedus_cms/home/static/css/article_page.css b/innovedus_cms/home/static/css/article_page.css
new file mode 100644
index 0000000..4c50733
--- /dev/null
+++ b/innovedus_cms/home/static/css/article_page.css
@@ -0,0 +1,396 @@
+.article-page {
+  width: 100%;
+  max-width: 718px;
+  margin: 0 auto;
+}
+
+.article-breadcrumbs {
+  margin: 12px 0 16px;
+}
+
+.article-breadcrumbs ol {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  gap: 0;
+  margin: 0;
+  padding: 0;
+  list-style: none;
+}
+
+.article-breadcrumbs li {
+  font-size: 12px;
+  font-weight: 700;
+  line-height: 1.5;
+  color: #0e1b4266;
+}
+
+.article-breadcrumbs li + li::before {
+  content: "/";
+  margin: 0 8px;
+}
+
+.article-breadcrumbs a:hover {
+  text-decoration: underline;
+}
+
+.block-title {
+  background-color: #0e1b42;
+  color: #ffffff;
+}
+
+.article-content img {
+  max-width: 718px;
+  height: auto;
+  display: block;
+  margin: 16px 0;
+}
+
+.article-content h1 {
+  font-size: 36px;
+  margin: 24px 0;
+}
+
+.article-content h2 {
+  font-size: 32px;
+  margin: 24px 0;
+}
+
+.article-content p {
+  font-size: 14px;
+}
+
+.article-content .intro {
+  font-size: 24px;
+}
+
+.article-content .body iframe {
+  display: block;
+  width: 100% !important;
+  max-width: 100% !important;
+  border: 0;
+}
+
+.article-content .body blockquote.instagram-media,
+.article-content .body blockquote.twitter-tweet,
+.article-content .body .fb-post,
+.article-content .body .fb-video {
+  max-width: 100% !important;
+  min-width: 0 !important;
+  margin-left: auto !important;
+  margin-right: auto !important;
+}
+
+.article-content .date {
+  display: flex;
+  align-items: center;
+  font-size: 24px;
+  color: #0e1b4266;
+  margin: 24px 0;
+}
+
+.article-content .date::after {
+  content: "";
+  flex: 1;
+  height: 1px;
+  background: #0e1b4266;
+  margin-left: 16px;
+}
+
+.article-tags {
+  display: flex;
+  justify-content: flex-end;
+  margin: 24px 0;
+}
+
+.article-tags .tag-chips {
+  flex-wrap: nowrap;
+  white-space: nowrap;
+  overflow-x: auto;
+}
+
+.tag-chips li {
+  flex: 0 0 auto;
+}
+
+.tag-chips a {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 96px;
+  height: 25px;
+  color: #ffffff;
+  font-size: 10px;
+  font-weight: 800;
+  line-height: 1;
+  overflow: hidden;
+}
+
+.tag-chips li:nth-child(3n + 1) a {
+  background: #00abf5;
+}
+
+.tag-chips li:nth-child(3n + 2) a {
+  background: #f4a41c;
+}
+
+.tag-chips li:nth-child(3n) a {
+  background: #ff461c;
+}
+
+.article-share {
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  gap: 12px;
+  margin: 64px 0;
+}
+
+.article-share .icon {
+  width: 32px;
+  height: 32px;
+  --fill-0: #0e1b4266;
+}
+
+.article-share .icon .icon-cutout {
+  fill: #ffffff;
+}
+
+.related-articles {
+  margin-top: 32px;
+  margin-bottom: 32px;
+}
+
+.related-articles h2 {
+  margin: 0 0 24px;
+  text-align: center;
+  font-size: 24px;
+  font-weight: 600;
+  color: #0e1b4266;
+}
+
+.related-articles-list {
+  display: flex;
+  flex-direction: column;
+  gap: 24px;
+}
+
+.related-articles-list > hr {
+  width: 100%;
+  margin: 12px 0;
+  margin-inline: 0;
+  border: 0;
+  border-top: 1px solid #0e1b4266;
+}
+
+.related-article-item {
+  display: grid;
+  grid-template-columns: 194px 1fr;
+  gap: 24px;
+  align-items: start;
+}
+
+.related-article-image {
+  display: block;
+  width: 194px;
+}
+
+.related-article-image img {
+  width: 194px;
+  max-width: 100%;
+  height: 133px;
+  display: block;
+  object-fit: cover;
+  border-radius: 5px;
+}
+
+.related-article-date {
+  margin: 10px 0 0;
+  text-align: left;
+  font-size: 16px;
+  color: #0e1b4266;
+}
+
+.related-article-title {
+  margin: 0 0 12px;
+  font-size: 28px;
+  line-height: 1.3;
+}
+
+.tag-chips {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  margin: 0;
+  padding: 0;
+  list-style: none;
+}
+
+.related-article-tags {
+  flex-wrap: wrap;
+  gap: 8px 12px;
+}
+
+.back-to-top {
+  position: fixed;
+  right: var(--back-to-top-right, 24px);
+  bottom: 24px;
+  z-index: 1000;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 8px;
+  padding: 0;
+  border: 0;
+  background: transparent;
+  color: #0e1b42;
+  cursor: pointer;
+  opacity: 0;
+  pointer-events: none;
+  transform: translateY(8px);
+  transition: opacity 0.2s ease, transform 0.2s ease;
+}
+
+.back-to-top.is-visible {
+  opacity: 1;
+  pointer-events: auto;
+  transform: translateY(0);
+}
+
+.back-to-top__icon {
+  position: relative;
+  display: block;
+  width: 48px;
+  height: 48px;
+  background: #ffffff;
+  border: 1px solid #d9deea;
+  box-shadow: 0 3px 8px rgba(14, 27, 66, 0.18);
+}
+
+.back-to-top__icon::before,
+.back-to-top__icon::after {
+  content: "";
+  position: absolute;
+  top: 24px;
+  width: 14px;
+  height: 2px;
+  background: #0e1b42;
+}
+
+.back-to-top__icon::before {
+  left: 12px;
+  transform: rotate(-45deg);
+}
+
+.back-to-top__icon::after {
+  right: 12px;
+  transform: rotate(45deg);
+}
+
+.back-to-top__label {
+  font-size: 24px;
+  line-height: 1;
+}
+
+@media (min-width: 768px) and (max-width: 1023px) {
+  .article-page {
+    max-width: 560px;
+  }
+
+  .article-content img {
+    max-width: 560px;
+  }
+
+  .article-content h2 {
+    font-size: 24px;
+  }
+}
+
+@media (min-width: 575px) and (max-width: 767px) {
+  .article-page {
+    max-width: 426px;
+  }
+
+  .article-content img {
+    max-width: 426px;
+  }
+
+  .related-article-title {
+    font-size: 20px;
+  }
+
+  .back-to-top {
+    bottom: 20px;
+  }
+}
+
+@media (max-width: 574px) {
+  .article-page {
+    max-width: 300px;
+  }
+
+  .article-content img {
+    max-width: 300px;
+  }
+
+  .article-content h1 {
+    font-size: 24px;
+  }
+
+  .article-content .intro {
+    font-size: 18px;
+  }
+
+  .article-content .date {
+    font-size: 16px;
+  }
+
+  .article-tags {
+    justify-content: center;
+  }
+
+  .related-article-item {
+    grid-template-columns: 139px 1fr;
+    gap: 12px;
+  }
+
+  .related-article-image {
+    width: 139px;
+  }
+
+  .related-article-image img {
+    width: 139px;
+    height: 110px;
+  }
+
+  .related-article-date {
+    font-size: 12px;
+  }
+
+  .related-article-title {
+    font-size: 16px;
+  }
+
+  .tag-chips a {
+    width: 70px;
+  }
+
+  .related-article-tags {
+    flex-wrap: wrap;
+    gap: 6px 8px;
+  }
+
+  .back-to-top {
+    bottom: 16px;
+  }
+
+  .back-to-top__label {
+    font-size: 18px;
+  }
+}
+
+@media (max-width: 767px) {
+  .article-breadcrumbs {
+    margin: 8px 0 12px;
+  }
+}
diff --git a/innovedus_cms/home/static/css/category.css b/innovedus_cms/home/static/css/category.css
index 20e3e37..a748c31 100644
--- a/innovedus_cms/home/static/css/category.css
+++ b/innovedus_cms/home/static/css/category.css
@@ -1,17 +1,3 @@
-.block-title {
-  display: inline-block;
-  width: 197px;
-  height: 87px;
-  vertical-align: middle;
-  font-size: 20px;
-  font-weight: 700;
-}
-
-.block-title span {
-  padding-left: 21px;
-  line-height: 87px;
-}
-
 .category-title {
   background-color: #00abf5;
   color: #ffffff;
@@ -50,17 +36,6 @@
 }
 
 @media (max-width: 574px) {
-  .block-title {
-    width: 139px;
-    height: 55px;
-    font-size: 16px;
-  }
-
-  .block-title span {
-    padding-left: 14px;
-    line-height: 55px;
-  }
-
   .subcategory-title span {
     width: 139px;
     height: 55px;
diff --git a/innovedus_cms/home/static/css/home.css b/innovedus_cms/home/static/css/home.css
index 07a05e1..81a1f45 100644
--- a/innovedus_cms/home/static/css/home.css
+++ b/innovedus_cms/home/static/css/home.css
@@ -13,20 +13,6 @@
   margin: 10px 0;
 }
 
-.block-title {
-  display: inline-block;
-  width: 197px;
-  height: 87px;
-  vertical-align: middle;
-  font-size: 20px;
-  font-weight: 700;
-}
-
-.block-title span {
-  padding-left: 21px;
-  line-height: 87px;
-}
-
 .block-title-divider {
   display: inline-flex;
   width: 28px;
@@ -78,17 +64,6 @@
 }
 
 @media (max-width: 574px) {
-  .block-title {
-    width: 139px;
-    height: 55px;
-    font-size: 16px;
-  }
-
-  .block-title span {
-    padding-left: 14px;
-    line-height: 55px;
-  }
-
   .block-title-divider {
     width: 20px;
     height: 1px;
diff --git a/innovedus_cms/home/static/js/article_page.js b/innovedus_cms/home/static/js/article_page.js
new file mode 100644
index 0000000..bbd53ae
--- /dev/null
+++ b/innovedus_cms/home/static/js/article_page.js
@@ -0,0 +1,67 @@
+(function () {
+  const button = document.querySelector(".back-to-top");
+  const articlePage = document.querySelector(".article-page");
+  const articleBody = document.querySelector(".article-content .body");
+  if (!button) return;
+
+  const toggleVisibility = () => {
+    button.classList.toggle("is-visible", window.scrollY > 200);
+  };
+
+  const syncHorizontalPosition = () => {
+    if (!articlePage) return;
+    const rightGap = Math.max(0, window.innerWidth - articlePage.getBoundingClientRect().right);
+    button.style.setProperty("--back-to-top-right", `${rightGap}px`);
+  };
+
+  const makeEmbedsResponsive = () => {
+    if (!articleBody) return;
+
+    articleBody.querySelectorAll("iframe").forEach((iframe) => {
+      const src = (iframe.getAttribute("src") || "").toLowerCase();
+      const isFixedRatioPlayer =
+        src.includes("youtube.com") ||
+        src.includes("youtube-nocookie.com") ||
+        src.includes("m.youtube.com") ||
+        src.includes("youtu.be") ||
+        src.includes("vimeo.com") ||
+        src.includes("player.vimeo.com") ||
+        src.includes("dailymotion.com");
+      const width = Number(iframe.getAttribute("width"));
+      const height = Number(iframe.getAttribute("height"));
+
+      iframe.style.width = "100%";
+      iframe.style.maxWidth = "100%";
+
+      if (isFixedRatioPlayer) {
+        if (width > 0 && height > 0) {
+          iframe.style.aspectRatio = `${width} / ${height}`;
+        } else {
+          iframe.style.aspectRatio = "16 / 9";
+        }
+        iframe.style.height = "auto";
+      } else {
+        iframe.style.removeProperty("aspect-ratio");
+        iframe.style.removeProperty("height");
+      }
+    });
+  };
+
+  window.addEventListener("scroll", toggleVisibility, { passive: true });
+  window.addEventListener("resize", syncHorizontalPosition);
+
+  toggleVisibility();
+  syncHorizontalPosition();
+  makeEmbedsResponsive();
+
+  if (articleBody && "MutationObserver" in window) {
+    const observer = new MutationObserver(() => {
+      makeEmbedsResponsive();
+    });
+    observer.observe(articleBody, { childList: true, subtree: true });
+  }
+
+  button.addEventListener("click", function () {
+    window.scrollTo({ top: 0, behavior: "smooth" });
+  });
+})();
diff --git a/innovedus_cms/home/templates/home/article_page.html b/innovedus_cms/home/templates/home/article_page.html
index f2891ab..528c3ef 100644
--- a/innovedus_cms/home/templates/home/article_page.html
+++ b/innovedus_cms/home/templates/home/article_page.html
@@ -1,35 +1,125 @@
 {% extends "base.html" %}
-{% load wagtailcore_tags wagtailimages_tags %}
+{% load wagtailcore_tags wagtailimages_tags static %}
+
+{% block extra_css %}
+  <link rel="stylesheet" type="text/css" href="{% static 'css/article_page.css' %}">
+{% endblock %}
 
 {% block content %}
-  <article>
-    <h1>{{ page.title }}</h1>
-    {% if page.banner_image %}
-      {% image page.banner_image original as banner %}
-      <img src="{{ banner.url }}" alt="{{ page.title }}">
+  <article class="article-page">
+    {% if breadcrumbs %}
+      <nav class="article-breadcrumbs" aria-label="breadcrumb">
+        <ol>
+          <li>
+            {% if breadcrumb_root %}
+              <a href="{{ breadcrumb_root.url }}">首頁</a>
+            {% else %}
+              <a href="/">首頁</a>
+            {% endif %}
+          </li>
+          {% for crumb in breadcrumbs %}
+            {% if not breadcrumb_root or crumb.id != breadcrumb_root.id %}
+              {% if crumb.id != page.id %}
+                <li>
+                  <a href="{{ crumb.url }}">{{ crumb.title }}</a>
+                </li>
+              {% endif %}
+            {% endif %}
+          {% endfor %}
+        </ol>
+      </nav>
     {% endif %}
-    <p class="date">{{ page.date }}</p>
-    <div class="intro">{{ page.intro }}</div>
-    <div class="body">
-      {{ page.body }}
+    <div class="article-category">
+      <div class="block-title category-title"><span>{% if article_category %}{{ article_category.title }}{% endif %}</span></div>
     </div>
+    <div class="article-content">
+      {% if page.cover_image %}
+        {% image page.cover_image original as cover %}
+        <img src="{{ cover.url }}" alt="{{ page.title }}">
+      {% endif %}
+      <h1>{{ page.title }}</h1>
+      <p class="date">{{ page.date|date:"Y/m/d" }}</p>
+      <div class="intro">{{ page.intro }}</div>
+      <div class="body">
+        {{ page.body }}
+      </div>
+    </div>
+    {% with share_url=request.build_absolute_uri|urlencode share_text=page.title|urlencode %}
+      <div class="article-share" aria-label="分享文章">
+        <a href="https://www.facebook.com/sharer/sharer.php?u={{ share_url }}" target="_blank" rel="noopener noreferrer" aria-label="分享到 Facebook">
+          <svg class="icon" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 33.18 33.18" role="img">
+            <path d="M16.59 0C7.43 0 0 7.43 0 16.59C0 25.75 7.43 33.18 16.59 33.18C25.75 33.18 33.18 25.75 33.18 16.59C33.18 7.43 25.75 0 16.59 0ZM23.12 8.37H21.18C19.27 8.37 18.67 9.56 18.67 10.78V13.67H22.94L22.26 18.12H18.67V28.89H13.85V18.12H9.94V13.67H13.85V10.28C13.85 6.42 16.15 4.29 19.67 4.29C21.36 4.29 23.12 4.59 23.12 4.59V8.38V8.37Z" fill="var(--fill-0, #0E1B42)"/>
+          </svg>
+        </a>
+        <a href="https://x.com/intent/tweet?url={{ share_url }}&text={{ share_text }}" target="_blank" rel="noopener noreferrer" aria-label="分享到 X">
+          <svg class="icon" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 33.18 33.18" role="img">
+            <path d="M16.59 0C7.43 0 0 7.43 0 16.59C0 25.75 7.43 33.18 16.59 33.18C25.75 33.18 33.18 25.75 33.18 16.59C33.18 7.43 25.75 0 16.59 0Z" fill="var(--fill-0, #0E1B42)"/>
+            <path class="icon-cutout" d="M12.6.75h2.454l-5.36 6.142L16 15.25h-4.937l-3.867-5.07-4.425 5.07H.316l5.733-6.57L0 .75h5.063l3.495 4.633L12.601.75Zm-.86 13.028h1.36L4.323 2.145H2.865z" transform="translate(7.59 7.59) scale(1.125)"/>
+          </svg>
+        </a>
+        <a href="https://www.threads.net/intent/post?text={{ share_text }}%20{{ share_url }}" target="_blank" rel="noopener noreferrer" aria-label="分享到 Threads">
+          <svg class="icon" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 33.18 33.18" role="img">
+            <path d="M16.59 0C7.43 0 0 7.43 0 16.59C0 25.75 7.43 33.18 16.59 33.18C25.75 33.18 33.18 25.75 33.18 16.59C33.18 7.43 25.75 0 16.59 0Z" fill="var(--fill-0, #0E1B42)"/>
+            <path class="icon-cutout" d="M6.321 6.016c-.27-.18-1.166-.802-1.166-.802.756-1.081 1.753-1.502 3.132-1.502.975 0 1.803.327 2.394.948s.928 1.509 1.005 2.644q.492.207.905.484c1.109.745 1.719 1.86 1.719 3.137 0 2.716-2.226 5.075-6.256 5.075C4.594 16 1 13.987 1 7.994 1 2.034 4.482 0 8.044 0 9.69 0 13.55.243 15 5.036l-1.36.353C12.516 1.974 10.163 1.43 8.006 1.43c-3.565 0-5.582 2.171-5.582 6.79 0 4.143 2.254 6.343 5.63 6.343 2.777 0 4.847-1.443 4.847-3.556 0-1.438-1.208-2.127-1.27-2.127-.236 1.234-.868 3.31-3.644 3.31-1.618 0-3.013-1.118-3.013-2.582 0-2.09 1.984-2.847 3.55-2.847.586 0 1.294.04 1.663.114 0-.637-.54-1.728-1.9-1.728-1.25 0-1.566.405-1.967.868ZM8.716 8.19c-2.04 0-2.304.87-2.304 1.416 0 .878 1.043 1.168 1.6 1.168 1.02 0 2.067-.282 2.232-2.423a6.2 6.2 0 0 0-1.528-.161" transform="translate(7.59 7.59) scale(1.125)"/>
+          </svg>
+        </a>
+      </div>
+    {% endwith %}
     {% with tags=page.tags.all %}
       {% if tags %}
-        <div class="tags">
-          <span>Hashtags:</span>
-          <ul>
+        <div class="article-tags">
+          <ul class="tag-chips">
             {% for tag in tags %}
-              <li><a href="{% url 'hashtag_search' tag.slug %}">#{{ tag }}</a></li>
+              <li><a href="{% url 'hashtag_search' tag.slug %}">{{ tag }}</a></li>
             {% endfor %}
           </ul>
         </div>
       {% endif %}
     {% endwith %}
     {% if related_articles %}
+    <hr/>
       <section class="related-articles">
         <h2>相關文章</h2>
-        {% include "home/includes/article_list.html" with items=related_articles %}
+        <div class="related-articles-list">
+          {% for related in related_articles %}
+            <article class="related-article-item">
+              <div class="related-article-left">
+                <a class="related-article-image" href="{{ related.url }}">
+                  {% if related.cover_image %}
+                    {% image related.cover_image max-194x133 as related_cover %}
+                    <img src="{{ related_cover.url }}" alt="{{ related.title }}">
+                  {% else %}
+                    <img src="{% static 'img/default_cover.jpg' %}" alt="{{ related.title }}">
+                  {% endif %}
+                </a>
+                <p class="related-article-date">{{ related.date|date:"Y/m/d" }}</p>
+              </div>
+              <div class="related-article-right">
+                <h3 class="related-article-title"><a href="{{ related.url }}">{{ related.title }}</a></h3>
+                {% with related_tags=related.tags.all %}
+                  {% if related_tags %}
+                    <ul class="related-article-tags tag-chips">
+                      {% for tag in related_tags %}
+                        <li><a href="{% url 'hashtag_search' tag.slug %}">{{ tag }}</a></li>
+                      {% endfor %}
+                    </ul>
+                  {% endif %}
+                {% endwith %}
+              </div>
+            </article>
+            <hr/>
+          {% endfor %}
+        </div>
       </section>
     {% endif %}
   </article>
+  <button class="back-to-top" type="button" aria-label="回到頁首">
+    <span class="back-to-top__icon" aria-hidden="true"></span>
+    <span class="back-to-top__label">TOP</span>
+  </button>
+{% endblock %}
+
+{% block extra_js %}
+  {{ block.super }}
+  <script type="text/javascript" src="{% static 'js/article_page.js' %}"></script>
 {% endblock %}
diff --git a/innovedus_cms/mysite/context_processors.py b/innovedus_cms/mysite/context_processors.py
new file mode 100644
index 0000000..ee31c19
--- /dev/null
+++ b/innovedus_cms/mysite/context_processors.py
@@ -0,0 +1,7 @@
+from django.conf import settings
+
+
+def ga4(request):
+    return {
+        "ga4_measurement_id": getattr(settings, "GA4_MEASUREMENT_ID", ""),
+    }
diff --git a/innovedus_cms/mysite/settings/base.py b/innovedus_cms/mysite/settings/base.py
index e040ad4..4b43aa4 100644
--- a/innovedus_cms/mysite/settings/base.py
+++ b/innovedus_cms/mysite/settings/base.py
@@ -26,6 +26,9 @@ def env_list(name, default):
     return default
 
 
+GA4_MEASUREMENT_ID = os.environ.get("GA4_MEASUREMENT_ID", "").strip()
+
+
 # Quick-start development settings - unsuitable for production
 # See https://docs.djangoproject.com/en/5.2/howto/deployment/checklist/
 
@@ -87,6 +90,7 @@ TEMPLATES = [
                 "django.contrib.messages.context_processors.messages",
                 "wagtail.contrib.settings.context_processors.settings",
                 "home.context_processors.navigation_pages",
+                "mysite.context_processors.ga4",
             ],
         },
     },
diff --git a/innovedus_cms/mysite/static/css/mysite.css b/innovedus_cms/mysite/static/css/mysite.css
index bf79be7..57bc3db 100644
--- a/innovedus_cms/mysite/static/css/mysite.css
+++ b/innovedus_cms/mysite/static/css/mysite.css
@@ -369,6 +369,20 @@ footer .footer-sections {
   flex-wrap: wrap;
 }
 
+.block-title {
+  display: inline-block;
+  width: 197px;
+  height: 87px;
+  vertical-align: middle;
+  font-size: 20px;
+  font-weight: 700;
+}
+
+.block-title span {
+  padding-left: 21px;
+  line-height: 87px;
+}
+
 .template-darkbackground .site-hero-band {
   background-color: #0e1b42;
   color: #ffffff;
@@ -578,6 +592,17 @@ footer .footer-sections {
   .main-nav {
     right: 16px;
   }
+  
+  .block-title {
+    width: 139px;
+    height: 55px;
+    font-size: 16px;
+  }
+
+  .block-title span {
+    padding-left: 14px;
+    line-height: 55px;
+  }
 }
 
 @layer figreset {
diff --git a/innovedus_cms/mysite/templates/base.html b/innovedus_cms/mysite/templates/base.html
index a406f9a..f34b3cf 100644
--- a/innovedus_cms/mysite/templates/base.html
+++ b/innovedus_cms/mysite/templates/base.html
@@ -17,6 +17,15 @@
         <meta name="description" content="{{ page.search_description }}" />
         {% endif %}
         <meta name="viewport" content="width=device-width, initial-scale=1" />
+        {% if ga4_measurement_id %}
+        <script async src="https://www.googletagmanager.com/gtag/js?id={{ ga4_measurement_id }}"></script>
+        <script>
+            window.dataLayer = window.dataLayer || [];
+            function gtag(){dataLayer.push(arguments);}
+            gtag('js', new Date());
+            gtag('config', '{{ ga4_measurement_id }}');
+        </script>
+        {% endif %}
 
         {# Force all links in the live preview panel to be opened in a new tab #}
         {% if request.in_preview_panel %}