diff --git a/admin/handler/web/others.go b/admin/handler/web/others.go
index b0d0795..89ebe4f 100644
--- a/admin/handler/web/others.go
+++ b/admin/handler/web/others.go
@@ -156,14 +156,39 @@ func (h *Handler) renderSybListWithLoginReason(c *gin.Context, keyword, pageRaw,
 		"SyncRunning":     syncStatus.Running,
 		"SyncHistory":     history,
 		"NeedSyncHistory": c.Query("history") == "1",
-		"HistoryRefreshURL": sybHistoryURL(history.Page,
+		"HistoryFetchURL": sybHistoryPartialURL(history.Page,
 			keyword, dateFrom, dateTo),
 		"HistoryPagination": sybHistoryPagination(history.Page, history.TotalPages,
 			keyword, dateFrom, dateTo),
+		"HistoryFetchPagination": sybHistoryPartialPagination(history.Page, history.TotalPages,
+			keyword, dateFrom, dateTo),
 		"Pagination": service.NewPaginationView(result.Page, result.TotalPages, values.Encode()),
 	}))
 }
 
+// SybSyncHistory 只返回同步记录弹窗内部的 HTML。它只读本地数据库，不调用
+// 顺运宝；完整页面和局部刷新共用同一份模板，避免字段或分页标记漂移。
+func (h *Handler) SybSyncHistory(c *gin.Context) {
+	c.Header("Cache-Control", "no-store")
+	keyword := c.Query("order_no")
+	dateFrom := c.Query("date_from")
+	dateTo := c.Query("date_to")
+	history, err := service.ListSybSyncHistory(h.db, service.ParsePage(c.Query("history_page")))
+	if err != nil {
+		c.String(http.StatusInternalServerError, "读取同步记录失败，请稍后重试")
+		return
+	}
+	c.HTML(http.StatusOK, "syb/history_partial", gin.H{
+		"SyncHistory": history,
+		"HistoryFetchURL": sybHistoryPartialURL(history.Page,
+			keyword, dateFrom, dateTo),
+		"HistoryPagination": sybHistoryPagination(history.Page, history.TotalPages,
+			keyword, dateFrom, dateTo),
+		"HistoryFetchPagination": sybHistoryPartialPagination(history.Page, history.TotalPages,
+			keyword, dateFrom, dateTo),
+	})
+}
+
 func sybHistoryPagination(pageNum, totalPages int, keyword, dateFrom, dateTo string) service.PaginationView {
 	link := func(target int) string { return sybHistoryURL(target, keyword, dateFrom, dateTo) }
 	view := service.PaginationView{
@@ -189,6 +214,31 @@ func sybHistoryURL(pageNum int, keyword, dateFrom, dateTo string) string {
 	return "/syb?" + values.Encode()
 }
 
+func sybHistoryPartialPagination(pageNum, totalPages int, keyword, dateFrom, dateTo string) service.PaginationView {
+	link := func(target int) string { return sybHistoryPartialURL(target, keyword, dateFrom, dateTo) }
+	view := service.PaginationView{
+		Page: pageNum, TotalPages: totalPages, HasPrev: pageNum > 1, HasNext: pageNum < totalPages,
+		FirstURL: link(1), LastURL: link(totalPages),
+	}
+	if view.HasPrev {
+		view.PrevURL = link(pageNum - 1)
+	}
+	if view.HasNext {
+		view.NextURL = link(pageNum + 1)
+	}
+	return view
+}
+
+func sybHistoryPartialURL(pageNum int, keyword, dateFrom, dateTo string) string {
+	values := url.Values{"history_page": {strconv.Itoa(pageNum)}}
+	if keyword != "" {
+		values.Set("order_no", keyword)
+	}
+	values.Set("date_from", dateFrom)
+	values.Set("date_to", dateTo)
+	return "/syb/sync-history?" + values.Encode()
+}
+
 // sybStatusLine 组装底部状态条的默认文案（没有 msg 覆盖时）。
 // `[必须]` 显示筛选后的**全量**总数，不是本页行数，见工单 #43 定下的规则。
 func sybStatusLine(result *service.SybListResult) string {
diff --git a/admin/handler/web/others_test.go b/admin/handler/web/others_test.go
index 69832ff..0aa41d0 100644
--- a/admin/handler/web/others_test.go
+++ b/admin/handler/web/others_test.go
@@ -115,3 +115,35 @@ func TestSybHistoryURL_刷新时保留当前页和筛选(t *testing.T) {
 		}
 	}
 }
+
+func TestSybHistoryPartialURL_只读片段保留当前页和筛选(t *testing.T) {
+	location, err := url.Parse(sybHistoryPartialURL(3, "ORDER-1", "2026-08-01", "2026-08-09"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if location.Path != "/syb/sync-history" {
+		t.Fatalf("局部刷新应使用独立只读路由，实际 %s", location.Path)
+	}
+	query := location.Query()
+	for name, want := range map[string]string{
+		"history_page": "3", "order_no": "ORDER-1",
+		"date_from": "2026-08-01", "date_to": "2026-08-09",
+	} {
+		if got := query.Get(name); got != want {
+			t.Fatalf("局部刷新链接 %s=%q，期望 %q；URL=%s", name, got, want, location.String())
+		}
+	}
+}
+
+func TestSybHistoryPartialPagination_翻页继续使用片段路由(t *testing.T) {
+	view := sybHistoryPartialPagination(2, 3, "ORDER-1", "2026-08-01", "2026-08-09")
+	for _, raw := range []string{view.FirstURL, view.PrevURL, view.NextURL, view.LastURL} {
+		location, err := url.Parse(raw)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if location.Path != "/syb/sync-history" {
+			t.Fatalf("弹窗局部翻页不应请求完整 SYB 页面：%s", raw)
+		}
+	}
+}
diff --git a/admin/handler/web/web.go b/admin/handler/web/web.go
index 9850c85..594b5a0 100644
--- a/admin/handler/web/web.go
+++ b/admin/handler/web/web.go
@@ -71,7 +71,8 @@ func Register(r *gin.Engine, db *sql.DB, onlineThreshold time.Duration) {
 
 	// 3. 顺运宝数据
 	pages.GET("/syb", h.SybList)
-	pages.GET("/syb/captcha", h.SybCaptcha) // 登录弹窗里的验证码图片
+	pages.GET("/syb/sync-history", h.SybSyncHistory) // 弹窗局部刷新，只读本地同步记录
+	pages.GET("/syb/captcha", h.SybCaptcha)          // 登录弹窗里的验证码图片
 	pages.POST("/syb/sync", h.SybSync)
 	pages.POST("/syb/login-and-sync", h.SybLoginAndSync)
 	pages.POST("/syb/match", h.SybMatch)
diff --git a/admin/main_test.go b/admin/main_test.go
index 49303a5..f1c34b8 100644
--- a/admin/main_test.go
+++ b/admin/main_test.go
@@ -67,7 +67,8 @@ func TestMainPagesReturnOK(t *testing.T) {
 	sybResponse := httptest.NewRecorder()
 	router.ServeHTTP(sybResponse, sybRequest)
 	for _, want := range []string{
-		"同步记录", "刷新记录", `data-history-refresh-url=`,
+		"同步记录", "刷新同步记录", `data-syb-history-slot`,
+		`data-history-fetch-url=`,
 		`name="date_from"`, `name="date_to"`,
 		"按顺运宝货运单创建日期（UTC+8）同步",
 	} {
@@ -79,6 +80,33 @@ func TestMainPagesReturnOK(t *testing.T) {
 		t.Error("顺运宝页面不应再显示旧的指定日期同步入口")
 	}
 
+	partialRequest := httptest.NewRequest(http.MethodGet,
+		"/syb/sync-history?history_page=1&order_no=ORDER-1&date_from=2026-08-01&date_to=2026-08-09", nil)
+	addAuth(partialRequest)
+	partialResponse := httptest.NewRecorder()
+	router.ServeHTTP(partialResponse, partialRequest)
+	partialBody := partialResponse.Body.String()
+	if partialResponse.Code != http.StatusOK ||
+		!strings.Contains(partialBody, "刷新同步记录") ||
+		!strings.Contains(partialBody, `data-history-fetch-url=`) {
+		t.Fatalf("同步记录片段响应不完整：%d %s", partialResponse.Code, partialBody)
+	}
+	if partialResponse.Header().Get("Cache-Control") != "no-store" {
+		t.Fatalf("同步记录刷新响应不得被浏览器缓存，实际 Cache-Control=%q",
+			partialResponse.Header().Get("Cache-Control"))
+	}
+	if strings.Contains(partialBody, `data-syb-sync-form`) || strings.Contains(partialBody, `modal-backdrop`) {
+		t.Fatalf("同步记录片段不应包含 SYB 主页面或弹窗外壳：%s", partialBody)
+	}
+	unauthorizedPartial := httptest.NewRequest(http.MethodGet, "/syb/sync-history", nil)
+	unauthorizedPartialResponse := httptest.NewRecorder()
+	router.ServeHTTP(unauthorizedPartialResponse, unauthorizedPartial)
+	if unauthorizedPartialResponse.Code != http.StatusSeeOther ||
+		!strings.HasPrefix(unauthorizedPartialResponse.Header().Get("Location"), "/login") {
+		t.Fatalf("匿名读取同步记录片段应跳转登录，实际 %d %s",
+			unauthorizedPartialResponse.Code, unauthorizedPartialResponse.Header().Get("Location"))
+	}
+
 	if !service.TryStartSybSync() {
 		t.Fatal("准备同步中页面状态失败")
 	}
diff --git a/admin/static/css/app.css b/admin/static/css/app.css
index 3052d85..f953705 100644
--- a/admin/static/css/app.css
+++ b/admin/static/css/app.css
@@ -290,6 +290,9 @@ tr.empty small { color: #aaa; }
 }
 .sync-history-page { color: #555; white-space: nowrap; }
 .sync-history-foot { flex-wrap: wrap; }
+.sync-history-loading { margin: 0; white-space: nowrap; }
+.sync-history-load-error { margin-top: 0; }
+.sync-history-foot [aria-disabled="true"] { opacity: .5; pointer-events: none; }
 .sync-status {
   display: inline-block;
   min-width: 52px;
diff --git a/admin/static/js/app.js b/admin/static/js/app.js
index 82b9831..9123cf3 100644
--- a/admin/static/js/app.js
+++ b/admin/static/js/app.js
@@ -265,17 +265,70 @@
     });
   }
 
-  /* 同步记录继续由服务端渲染。刷新按钮带着 history=1 和当前页码重新加载，
-     返回后弹窗会自动打开；点击后先显示加载态，避免连续刷新。 */
+  /* 同步记录继续由服务端渲染，但只替换弹窗内部的 HTML 片段。
+     事件委托挂在不会被替换的 slot 上，所以刷新和翻页后不用重新绑定。 */
   function setupSybHistoryRefresh() {
-    var button = document.querySelector("[data-history-refresh-url]");
-    if (!button) return;
-    button.addEventListener("click", function () {
-      if (button.disabled) return;
-      button.disabled = true;
-      button.setAttribute("aria-busy", "true");
-      button.textContent = "刷新中…";
-      window.location.assign(button.getAttribute("data-history-refresh-url"));
+    var slot = document.querySelector("[data-syb-history-slot]");
+    if (!slot) return;
+
+    slot.addEventListener("click", function (event) {
+      var trigger = event.target.closest("[data-history-fetch-url]");
+      if (!trigger || !slot.contains(trigger)) return;
+      event.preventDefault();
+      if (slot.getAttribute("aria-busy") === "true") return;
+
+      var fetchURL = trigger.getAttribute("data-history-fetch-url");
+      var refreshButton = slot.querySelector("button[data-history-fetch-url]");
+      var loading = slot.querySelector("[data-history-loading]");
+      var previousError = slot.querySelector("[data-history-load-error]");
+      var isRefreshButton = trigger === refreshButton;
+      slot.setAttribute("aria-busy", "true");
+      slot.querySelectorAll("[data-history-fetch-url]").forEach(function (control) {
+        control.setAttribute("aria-disabled", "true");
+      });
+      if (refreshButton) refreshButton.disabled = true;
+      if (loading) loading.hidden = false;
+      if (previousError) previousError.hidden = true;
+      if (isRefreshButton) refreshButton.textContent = "刷新中…";
+
+      fetch(fetchURL, {
+        cache: "no-store",
+        headers: { "X-Requested-With": "fetch" }
+      })
+        .then(function (response) {
+          if (response.redirected) {
+            window.location.assign(response.url);
+            return null;
+          }
+          if (!response.ok) throw new Error("HTTP " + response.status);
+          return response.text();
+        })
+        .then(function (html) {
+          if (html === null) return;
+          slot.innerHTML = html;
+          slot.removeAttribute("aria-busy");
+          var nextRefreshButton = slot.querySelector("button[data-history-fetch-url]");
+          if (nextRefreshButton) nextRefreshButton.focus({ preventScroll: true });
+        })
+        .catch(function (error) {
+          slot.removeAttribute("aria-busy");
+          slot.querySelectorAll("[data-history-fetch-url]").forEach(function (control) {
+            control.removeAttribute("aria-disabled");
+          });
+          refreshButton = slot.querySelector("button[data-history-fetch-url]");
+          loading = slot.querySelector("[data-history-loading]");
+          var errorBox = slot.querySelector("[data-history-load-error]");
+          if (refreshButton) {
+            refreshButton.disabled = false;
+            refreshButton.textContent = "刷新同步记录";
+            refreshButton.focus({ preventScroll: true });
+          }
+          if (loading) loading.hidden = true;
+          if (errorBox) {
+            errorBox.textContent = "刷新同步记录失败：" + error.message + "。请重试。";
+            errorBox.hidden = false;
+          }
+        });
     });
   }
 
diff --git a/admin/templates/syb/history_partial.html b/admin/templates/syb/history_partial.html
new file mode 100644
index 0000000..e9070d1
--- /dev/null
+++ b/admin/templates/syb/history_partial.html
@@ -0,0 +1,55 @@
+{{define "syb/history_partial"}}
+<div class="modal-body">
+  <p class="missing sync-history-load-error" role="alert" data-history-load-error hidden></p>
+  <p class="hint">共 {{.SyncHistory.Total}} 条，按发起时间从新到旧排列。</p>
+  <div class="table-wrap sync-history-table">
+    <table>
+      <thead>
+        <tr>
+          <th>状态</th><th>日期范围</th><th>操作账号</th><th>开始时间</th>
+          <th>完成时间</th><th>同步结果</th><th>覆盖进度</th><th>失败原因</th>
+        </tr>
+      </thead>
+      <tbody>
+        {{range .SyncHistory.Rows}}
+        <tr>
+          <td><span class="sync-status {{.StatusClass}}">{{.StatusText}}</span></td>
+          <td>{{.DateRange}}</td>
+          <td>{{.Username}}</td>
+          <td>{{.StartedAt}}</td>
+          <td>{{.FinishedAt}}</td>
+          <td>{{.Summary}}</td>
+          <td>{{.CursorText}}</td>
+          <td class="sync-error">{{if .ErrorMessage}}{{.ErrorMessage}}{{else}}—{{end}}</td>
+        </tr>
+        {{else}}
+        <tr class="empty"><td colspan="8">还没有同步记录。</td></tr>
+        {{end}}
+      </tbody>
+    </table>
+  </div>
+</div>
+<div class="modal-foot sync-history-foot">
+  <span class="grow"></span>
+  <span class="hint sync-history-loading" role="status" data-history-loading hidden>正在加载同步记录…</span>
+  <button type="button" data-history-fetch-url="{{.HistoryFetchURL}}">刷新同步记录</button>
+  <span class="sync-history-page">第 {{.SyncHistory.Page}} / {{.SyncHistory.TotalPages}} 页</span>
+  {{if .HistoryPagination.HasPrev}}
+  <a class="button-link" href="{{.HistoryPagination.FirstURL}}"
+     data-history-fetch-url="{{.HistoryFetchPagination.FirstURL}}">首页</a>
+  <a class="button-link" href="{{.HistoryPagination.PrevURL}}"
+     data-history-fetch-url="{{.HistoryFetchPagination.PrevURL}}">上一页</a>
+  {{else}}
+  <span class="button-link disabled">首页</span><span class="button-link disabled">上一页</span>
+  {{end}}
+  {{if .HistoryPagination.HasNext}}
+  <a class="button-link" href="{{.HistoryPagination.NextURL}}"
+     data-history-fetch-url="{{.HistoryFetchPagination.NextURL}}">下一页</a>
+  <a class="button-link" href="{{.HistoryPagination.LastURL}}"
+     data-history-fetch-url="{{.HistoryFetchPagination.LastURL}}">末页</a>
+  {{else}}
+  <span class="button-link disabled">下一页</span><span class="button-link disabled">末页</span>
+  {{end}}
+  <button type="button" data-modal-close>关闭</button>
+</div>
+{{end}}
diff --git a/admin/templates/syb/list.html b/admin/templates/syb/list.html
index 74efa85..2b66946 100644
--- a/admin/templates/syb/list.html
+++ b/admin/templates/syb/list.html
@@ -52,52 +52,8 @@
       <h2 id="sync-history-modal-title">同步记录</h2>
       <button type="button" class="modal-x" data-modal-close aria-label="关闭">×</button>
     </div>
-    <div class="modal-body">
-      <p class="hint">共 {{.SyncHistory.Total}} 条，按发起时间从新到旧排列。</p>
-      <div class="table-wrap sync-history-table">
-        <table>
-          <thead>
-            <tr>
-              <th>状态</th><th>日期范围</th><th>操作账号</th><th>开始时间</th>
-              <th>完成时间</th><th>同步结果</th><th>覆盖进度</th><th>失败原因</th>
-            </tr>
-          </thead>
-          <tbody>
-            {{range .SyncHistory.Rows}}
-            <tr>
-              <td><span class="sync-status {{.StatusClass}}">{{.StatusText}}</span></td>
-              <td>{{.DateRange}}</td>
-              <td>{{.Username}}</td>
-              <td>{{.StartedAt}}</td>
-              <td>{{.FinishedAt}}</td>
-              <td>{{.Summary}}</td>
-              <td>{{.CursorText}}</td>
-              <td class="sync-error">{{if .ErrorMessage}}{{.ErrorMessage}}{{else}}—{{end}}</td>
-            </tr>
-            {{else}}
-            <tr class="empty"><td colspan="8">还没有同步记录。</td></tr>
-            {{end}}
-          </tbody>
-        </table>
-      </div>
-    </div>
-    <div class="modal-foot sync-history-foot">
-      <span class="grow"></span>
-      <button type="button" data-history-refresh-url="{{.HistoryRefreshURL}}">刷新记录</button>
-      <span class="sync-history-page">第 {{.SyncHistory.Page}} / {{.SyncHistory.TotalPages}} 页</span>
-      {{if .HistoryPagination.HasPrev}}
-      <a class="button-link" href="{{.HistoryPagination.FirstURL}}">首页</a>
-      <a class="button-link" href="{{.HistoryPagination.PrevURL}}">上一页</a>
-      {{else}}
-      <span class="button-link disabled">首页</span><span class="button-link disabled">上一页</span>
-      {{end}}
-      {{if .HistoryPagination.HasNext}}
-      <a class="button-link" href="{{.HistoryPagination.NextURL}}">下一页</a>
-      <a class="button-link" href="{{.HistoryPagination.LastURL}}">末页</a>
-      {{else}}
-      <span class="button-link disabled">下一页</span><span class="button-link disabled">末页</span>
-      {{end}}
-      <button type="button" data-modal-close>关闭</button>
+    <div data-syb-history-slot>
+      {{template "syb/history_partial" .}}
     </div>
   </div>
 </div>
diff --git a/docs/admin/05-ui-specification.md b/docs/admin/05-ui-specification.md
index 9949851..39af74d 100644
--- a/docs/admin/05-ui-specification.md
+++ b/docs/admin/05-ui-specification.md
@@ -455,9 +455,12 @@ Go 的 map 是无序的，不靠它定顺序的话，同一个商品每次刷新
 操作账号、开始/完成时间、同步统计、覆盖游标结果和失败原因。状态至少区分同步中、
 成功、失败、已中断；不能只靠颜色表达。刷新或重启 Admin 后记录仍可查看。
 
-弹窗底部右侧依次放“刷新记录”、当前页、翻页组件和“关闭”。点击刷新后按钮显示
-“刷新中…”并暂时禁用；通过普通 GET 保留当前历史页码、订单号和日期范围，页面
-返回后自动重开弹窗。本阶段不自动轮询，避免阅读历史记录时内容突然移动。
+弹窗底部右侧依次放“刷新同步记录”、当前页、翻页组件和“关闭”。点击刷新后按钮
+显示“刷新中…”并暂时禁用；刷新和弹窗内翻页只请求受网页登录保护的同步记录
+HTML 片段，只替换弹窗内部的表格、总数和分页。主货运单表的滚动、勾选和筛选
+状态不改变，弹窗也不关闭；失败时保留原记录并在弹窗内给出重试提示。无 JavaScript
+时翻页链接降级为重载 `/syb` 并自动重开弹窗。本阶段不自动轮询，避免阅读历史
+记录时内容突然移动；F5 仍按浏览器默认行为刷新整个 SYB 页面。
 
 `[必须]` 搜索框宽度见 [§3.1](#31-搜索框宽度)。