diff --git a/panel/app.py b/panel/app.py
index 42fb9c4..e074b7a 100644
--- a/panel/app.py
+++ b/panel/app.py
@@ -97,7 +97,7 @@ def login_required(view):
     return wrapped
 
 
-def apply_singbox() -> tuple[bool, str]:
+def render_singbox_config() -> tuple[bool, str]:
     env = os.environ.copy()
     env["JIEDIAN_ROOT"] = str(ROOT)
     proc = subprocess.run(
@@ -108,9 +108,23 @@ def apply_singbox() -> tuple[bool, str]:
     )
     if proc.returncode != 0:
         return False, proc.stderr or proc.stdout or "配置生成失败"
-    restart = subprocess.run(["systemctl", "restart", "sing-box"], capture_output=True, text=True)
-    if restart.returncode != 0:
-        return False, restart.stderr or restart.stdout or "sing-box 重启失败"
+    return True, "ok"
+
+
+def restart_singbox_async() -> None:
+    """后台重启 sing-box，避免添加/删除节点 API 长时间阻塞。"""
+    subprocess.Popen(
+        ["systemctl", "restart", "sing-box"],
+        stdout=subprocess.DEVNULL,
+        stderr=subprocess.DEVNULL,
+    )
+
+
+def apply_singbox() -> tuple[bool, str]:
+    ok, msg = render_singbox_config()
+    if not ok:
+        return False, msg
+    restart_singbox_async()
     return True, "ok"
 
 
diff --git a/panel/static/app.js b/panel/static/app.js
index 5bdbc47..6d44b3d 100644
--- a/panel/static/app.js
+++ b/panel/static/app.js
@@ -90,23 +90,38 @@ if (cancelBtn) {
   cancelBtn.addEventListener("click", () => modal.classList.add("hidden"));
 }
 
+function setButtonBusy(btn, busy, busyText) {
+  if (!btn) return;
+  if (busy) {
+    if (!btn.dataset.label) btn.dataset.label = btn.textContent;
+    btn.textContent = busyText;
+    btn.disabled = true;
+  } else {
+    btn.textContent = btn.dataset.label || btn.textContent;
+    btn.disabled = false;
+  }
+}
+
 if (confirmAddBtn) {
   confirmAddBtn.addEventListener("click", async () => {
     const name = nodeName.value.trim() || "新节点";
-    confirmAddBtn.disabled = true;
+    setButtonBusy(confirmAddBtn, true, "创建中…");
+    if (cancelBtn) cancelBtn.disabled = true;
     try {
       const res = await fetch(apiUrl("/api/nodes"), {
         method: "POST",
+        credentials: "same-origin",
         headers: { "Content-Type": "application/json" },
         body: JSON.stringify({ name }),
       });
       const data = await res.json();
       if (!res.ok) throw new Error(data.error || "创建失败");
-      location.reload();
+      toast("节点已创建，配置生效中…");
+      setTimeout(() => location.reload(), 600);
     } catch (err) {
-      toast(err.message);
-    } finally {
-      confirmAddBtn.disabled = false;
+      toast(err.message || "创建失败");
+      setButtonBusy(confirmAddBtn, false);
+      if (cancelBtn) cancelBtn.disabled = false;
     }
   });
 }
@@ -115,15 +130,19 @@ document.querySelectorAll(".delete-btn").forEach((btn) => {
   btn.addEventListener("click", async () => {
     const id = btn.dataset.id;
     if (!confirm("确定删除该节点？删除后对应链接将失效。")) return;
-    btn.disabled = true;
+    setButtonBusy(btn, true, "删除中…");
     try {
-      const res = await fetch(apiUrl(`/api/nodes/${id}`), { method: "DELETE" });
+      const res = await fetch(apiUrl(`/api/nodes/${id}`), {
+        method: "DELETE",
+        credentials: "same-origin",
+      });
       const data = await res.json();
       if (!res.ok) throw new Error(data.error || "删除失败");
-      location.reload();
+      toast("已删除，配置生效中…");
+      setTimeout(() => location.reload(), 600);
     } catch (err) {
-      toast(err.message);
-      btn.disabled = false;
+      toast(err.message || "删除失败");
+      setButtonBusy(btn, false);
     }
   });
 });
diff --git a/panel/stats.py b/panel/stats.py
index dce2e04..eb0283d 100644
--- a/panel/stats.py
+++ b/panel/stats.py
@@ -279,14 +279,17 @@ def collect_node_stats() -> dict:
         matched = [c for c in connections if _match_connection(c, node)]
         if not matched and single_node and has_connections:
             matched = connections
+        if not matched and (session_up + session_down) > 0:
+            matched = [None]  # 有活跃会话但 Clash 未返回连接详情
         if not matched and single_node and global_active:
             up_speed = global_up_speed
             down_speed = global_down_speed
 
         online = (
             len(matched) > 0
+            or (session_up + session_down) > 0
             or (up_speed + down_speed) > 512
-            or (single_node and global_active)
+            or (single_node and (global_active or has_connections))
         )
 
         if online: