diff --git a/web/WEB.md b/web/WEB.md
index 354a261..1fd6caa 100644
--- a/web/WEB.md
+++ b/web/WEB.md
@@ -129,6 +129,7 @@ src/
 - 未保存切换地图会确认；Ctrl+S 保存；发现可取消；禁止自环与重复连线；PUT 保留 `discovered_at`；发现边键对端口名做规范化
 - 发现进度主区只显示摘要与入口；点「详情」打开列表弹窗，再点设备打开链路复核弹窗
 - 工具栏可搜索定位并高亮；侧栏已上图网元点击可定位
+- 连线模式画布顶提示；侧栏折叠/编辑/删除使用内联 SVG 图标；名称与 IP/端口间隔统一为 ASCII ` / `（避免 Unicode 损坏）
 - 链路右键可跳转端口流量（`/network/tasks/port-traffic?ne_id=&source=&ifname=`）
 
 ## WebCRT
diff --git a/web/src/i18n/en.ts b/web/src/i18n/en.ts
index f48dfb8..c458956 100644
--- a/web/src/i18n/en.ts
+++ b/web/src/i18n/en.ts
@@ -1029,6 +1029,7 @@ const en = {
     removeStale: "Clear missing ({{count}})",
     removeStaleHint: "Delete red-marked missing edges",
     staleRemoved: "Removed {{count}} missing edge(s)",
+    connectHint: "Connect mode: click source node, then target (Esc or Select to exit)",
   },
 };
 
diff --git a/web/src/i18n/zh.ts b/web/src/i18n/zh.ts
index 0cfae08..e0e2dfd 100644
--- a/web/src/i18n/zh.ts
+++ b/web/src/i18n/zh.ts
@@ -1025,6 +1025,7 @@ const zh = {
     removeStale: "清除未发现 ({{count}})",
     removeStaleHint: "删除红色标记的未发现链路",
     staleRemoved: "已删除 {{count}} 条未发现链路",
+    connectHint: "连线模式：依次点击源节点 → 目标节点（Esc 或切回选择退出）",
   },
 };
 
diff --git a/web/src/index.css b/web/src/index.css
index 61c4609..91052e1 100644
--- a/web/src/index.css
+++ b/web/src/index.css
@@ -1945,32 +1945,32 @@ pre {
 /* ---- Topology ---- */
 .topo-page {
   display: grid;
-  grid-template-columns: 280px 1fr;
-  gap: 12px;
+  grid-template-columns: 260px 1fr;
+  gap: 8px;
   height: calc(100vh - 72px);
   min-height: 520px;
-  padding: 12px 16px 16px;
+  padding: 8px 12px 12px;
   transition: grid-template-columns 0.18s ease;
 }
 
 .topo-page.is-sidebar-collapsed {
-  grid-template-columns: 40px 1fr;
+  grid-template-columns: 36px 1fr;
 }
 
 .topo-sidebar {
   display: flex;
   flex-direction: column;
-  gap: 12px;
+  gap: 8px;
   min-height: 0;
-  background: #fff;
-  border: 1px solid #dbe3ee;
-  border-radius: 10px;
-  padding: 12px;
+  background: #f8fafc;
+  border: 1px solid #c5ced9;
+  border-radius: 4px;
+  padding: 8px;
   overflow: hidden;
 }
 
 .topo-page.is-sidebar-collapsed .topo-sidebar {
-  padding: 6px;
+  padding: 4px;
   align-items: stretch;
 }
 
@@ -1980,23 +1980,26 @@ pre {
   flex-direction: column;
   align-items: center;
   justify-content: flex-start;
-  gap: 10px;
+  gap: 8px;
   width: 100%;
   border: 0;
   background: transparent;
-  padding: 8px 0;
+  padding: 6px 0;
   cursor: pointer;
   color: #475569;
-  border-radius: 8px;
+  border-radius: 4px;
 }
 
 .topo-sidebar__rail:hover {
-  background: #f1f5f9;
+  background: #e8eef5;
   color: #0f172a;
 }
 
 .topo-sidebar__rail-icon {
-  font-size: 18px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  font-size: 14px;
   line-height: 1;
   font-weight: 600;
 }
@@ -2004,15 +2007,16 @@ pre {
 .topo-sidebar__rail-label {
   writing-mode: vertical-rl;
   text-orientation: mixed;
-  font-size: 12px;
+  font-size: 11px;
   font-weight: 600;
-  letter-spacing: 0.06em;
+  letter-spacing: 0.08em;
+  text-transform: uppercase;
 }
 
 .topo-sidebar__section {
   display: flex;
   flex-direction: column;
-  gap: 8px;
+  gap: 6px;
   min-height: 0;
   min-width: 0;
 }
@@ -2037,18 +2041,18 @@ pre {
 .topo-palette-source {
   display: grid;
   grid-template-columns: 1fr 1fr;
-  gap: 4px;
+  gap: 2px;
   padding: 2px;
-  background: #f1f5f9;
-  border-radius: 8px;
+  background: #e2e8f0;
+  border-radius: 4px;
 }
 
 .topo-palette-source__btn {
   border: 0;
   background: transparent;
-  border-radius: 6px;
-  padding: 6px 8px;
-  font-size: 12px;
+  border-radius: 3px;
+  padding: 5px 6px;
+  font-size: 11px;
   font-weight: 600;
   color: #64748b;
   cursor: pointer;
@@ -2057,7 +2061,7 @@ pre {
 .topo-palette-source__btn.is-active {
   background: #fff;
   color: #0f172a;
-  box-shadow: 0 1px 2px rgb(15 23 42 / 8%);
+  box-shadow: inset 0 0 0 1px #c5ced9;
 }
 
 .topo-map-list,
@@ -2072,7 +2076,7 @@ pre {
 
 .topo-map-list li,
 .topo-palette > li {
-  margin: 0 0 6px;
+  margin: 0 0 4px;
   width: 100%;
   min-width: 0;
 }
@@ -2088,16 +2092,16 @@ pre {
   align-items: stretch;
   width: 100%;
   box-sizing: border-box;
-  border: 1px solid #e2e8f0;
-  border-radius: 8px;
+  border: 1px solid #c5ced9;
+  border-radius: 3px;
   background: #fff;
   overflow: hidden;
   min-width: 0;
 }
 
 .topo-map-list li.is-active .topo-map-list__row {
-  border-color: #93c5fd;
-  background: #e8f1fb;
+  border-color: #64748b;
+  background: #e8eef5;
 }
 
 .topo-palette > li.is-on-canvas .topo-palette__row {
@@ -2114,7 +2118,7 @@ pre {
   text-align: left;
   border: 0;
   background: transparent;
-  padding: 8px 10px;
+  padding: 6px 8px;
   cursor: pointer;
   border-radius: 0;
   min-width: 0;
@@ -2135,11 +2139,11 @@ pre {
 .app-main .topo-palette__item {
   display: block;
   width: 100%;
-  padding: 8px 10px;
+  padding: 6px 8px;
 }
 
 .app-main .topo-map-list__icon {
-  width: 32px;
+  width: 28px;
   height: auto;
   padding: 0;
   color: #64748b;
@@ -2149,29 +2153,29 @@ pre {
 
 .topo-map-list__item:hover,
 .topo-palette__item:hover:not(:disabled) {
-  background: #f1f5f9;
+  background: #eef2f7;
 }
 
 .topo-map-list li.is-active .topo-map-list__item:hover {
-  background: #dbeafe;
+  background: #dbe4ef;
 }
 
 .topo-map-list__actions {
   display: flex;
   align-items: stretch;
   flex: 0 0 auto;
-  border-left: 1px solid #e2e8f0;
+  border-left: 1px solid #c5ced9;
 }
 
 .topo-map-list li.is-active .topo-map-list__actions {
-  border-left-color: #bfdbfe;
+  border-left-color: #94a3b8;
 }
 
 .topo-map-list__icon {
   display: inline-flex;
   align-items: center;
   justify-content: center;
-  width: 32px;
+  width: 28px;
   min-height: 100%;
   border: 0;
   background: transparent;
@@ -2180,7 +2184,7 @@ pre {
 }
 
 .topo-map-list__icon:hover:not(:disabled) {
-  background: #f1f5f9;
+  background: #e2e8f0;
   color: #0f172a;
 }
 
@@ -2204,6 +2208,7 @@ pre {
 .topo-palette__name {
   display: block;
   font-weight: 600;
+  font-size: 12px;
   color: #0f172a;
   overflow: hidden;
   text-overflow: ellipsis;
@@ -2213,8 +2218,9 @@ pre {
 .topo-map-list__meta,
 .topo-palette__meta {
   display: block;
-  font-size: 12px;
+  font-size: 11px;
   color: #64748b;
+  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
@@ -2226,34 +2232,34 @@ pre {
   min-width: 0;
   min-height: 0;
   background: #fff;
-  border: 1px solid #dbe3ee;
-  border-radius: 10px;
+  border: 1px solid #c5ced9;
+  border-radius: 4px;
   overflow: hidden;
 }
 
 .topo-toolbar {
   display: flex;
   flex-direction: column;
-  gap: 8px;
-  padding: 10px 12px;
-  border-bottom: 1px solid #e2e8f0;
-  background: #f8fafc;
+  gap: 6px;
+  padding: 6px 8px;
+  border-bottom: 1px solid #c5ced9;
+  background: #eef2f7;
 }
 
 .topo-toolbar__row {
   display: flex;
   align-items: center;
   justify-content: space-between;
-  gap: 12px;
+  gap: 8px;
   min-width: 0;
 }
 
 .topo-toolbar__row--tools {
   justify-content: flex-start;
   flex-wrap: wrap;
-  gap: 10px;
-  padding-top: 2px;
-  border-top: 1px solid #e2e8f0;
+  gap: 8px;
+  padding-top: 4px;
+  border-top: 1px solid #d0d7e2;
 }
 
 .topo-toolbar__group + .topo-toolbar__group,
@@ -2268,16 +2274,16 @@ pre {
 .topo-toolbar__panel {
   display: inline-flex;
   align-items: center;
-  gap: 8px;
+  gap: 6px;
   flex-shrink: 0;
-  padding: 4px 8px;
-  background: #f1f5f9;
-  border: 1px solid #e2e8f0;
-  border-radius: 10px;
+  padding: 3px 6px;
+  background: #e2e8f0;
+  border: 1px solid #c5ced9;
+  border-radius: 4px;
 }
 
 .topo-toolbar__panel .topo-tools {
-  background: #e2e8f0;
+  background: #d5dde8;
 }
 
 .topo-toolbar__panel .topo-toolbar__display > summary {
@@ -2299,13 +2305,13 @@ pre {
   right: 0;
   left: auto;
   z-index: 30;
-  width: min(320px, 70vw);
+  width: min(340px, 72vw);
   max-height: 280px;
   overflow: auto;
   background: #fff;
-  border: 1px solid #cbd5e1;
-  border-radius: 8px;
-  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.14);
+  border: 1px solid #94a3b8;
+  border-radius: 4px;
+  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.16);
 }
 
 .topo-find-suggest__item {
@@ -2323,7 +2329,7 @@ pre {
 
 .topo-find-suggest__item:hover,
 .topo-find-suggest__item.is-active {
-  background: #eff6ff;
+  background: #e8eef5;
 }
 
 .topo-find-suggest__name {
@@ -2335,6 +2341,7 @@ pre {
 .topo-find-suggest__meta {
   font-size: 11px;
   color: #64748b;
+  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
 }
 
 .topo-find-suggest__empty,
@@ -2345,12 +2352,12 @@ pre {
 }
 
 .topo-toolbar__find {
-  width: 150px;
-  max-width: 28vw;
-  height: 30px;
+  width: 190px;
+  max-width: 36vw;
+  height: 28px;
   padding: 0 8px;
-  border: 1px solid #cbd5e1;
-  border-radius: 6px;
+  border: 1px solid #94a3b8;
+  border-radius: 3px;
   font-size: 12px;
   background: #fff;
 }
@@ -2370,7 +2377,8 @@ pre {
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
-  font-size: 14px;
+  font-size: 13px;
+  letter-spacing: 0.01em;
 }
 
 .topo-toolbar__meta {
@@ -2398,37 +2406,56 @@ pre {
   gap: 2px;
   padding: 2px;
   background: #e2e8f0;
-  border-radius: 8px;
+  border-radius: 4px;
   flex-shrink: 0;
 }
 
 .topo-tools__btn {
+  display: inline-flex;
+  align-items: center;
+  gap: 4px;
   border: 0;
   background: transparent;
   color: #475569;
   font-size: 12px;
   font-weight: 600;
-  padding: 5px 10px;
-  border-radius: 6px;
+  padding: 4px 8px;
+  border-radius: 3px;
   cursor: pointer;
-  white-space: nowrap;
+  line-height: 1.2;
 }
 
 .topo-tools__btn:hover {
-  background: #cbd5e1;
+  background: #fff;
   color: #0f172a;
 }
 
 .topo-tools__btn.is-active {
-  background: #0f172a;
+  background: #334155;
   color: #f8fafc;
 }
 
+.topo-tools__key {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  min-width: 14px;
+  height: 14px;
+  padding: 0 3px;
+  border: 1px solid currentColor;
+  border-radius: 2px;
+  font-size: 10px;
+  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
+  font-weight: 700;
+  opacity: 0.75;
+  line-height: 1;
+}
+
 .topo-toolbar__select {
   min-width: 88px;
-  height: 30px;
-  border: 1px solid #cbd5e1;
-  border-radius: 6px;
+  height: 28px;
+  border: 1px solid #94a3b8;
+  border-radius: 3px;
   background: #fff;
   color: #0f172a;
   font-size: 12px;
@@ -2443,10 +2470,10 @@ pre {
   list-style: none;
   cursor: pointer;
   user-select: none;
-  height: 30px;
+  height: 28px;
   padding: 0 10px;
-  border: 1px solid #cbd5e1;
-  border-radius: 6px;
+  border: 1px solid #94a3b8;
+  border-radius: 3px;
   background: #fff;
   color: #0f172a;
   font-size: 12px;
@@ -2472,11 +2499,44 @@ pre {
   display: grid;
   gap: 6px;
   min-width: 260px;
-  padding: 10px 12px;
-  border: 1px solid #e2e8f0;
-  border-radius: 8px;
+  padding: 8px 10px;
+  border: 1px solid #94a3b8;
+  border-radius: 4px;
   background: #fff;
-  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12);
+  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.14);
+}
+
+.topo-mode-hint {
+  position: absolute;
+  top: 10px;
+  left: 50%;
+  transform: translateX(-50%);
+  z-index: 6;
+  padding: 6px 12px;
+  border-radius: 3px;
+  border: 1px solid #0ea5e9;
+  background: rgba(15, 23, 42, 0.9);
+  color: #e0f2fe;
+  font-size: 12px;
+  font-weight: 600;
+  pointer-events: none;
+  white-space: nowrap;
+  max-width: calc(100% - 24px);
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.topo-svg-icon {
+  display: block;
+}
+
+.topo-icon-btn {
+  display: inline-flex !important;
+  align-items: center;
+  justify-content: center;
+  width: 28px;
+  min-width: 28px;
+  padding: 0 !important;
 }
 
 .topo-display-defaults {
@@ -2529,18 +2589,18 @@ pre {
 
 .topo-legend {
   position: absolute;
-  left: 12px;
-  bottom: 12px;
+  left: 10px;
+  bottom: 10px;
   z-index: 5;
   display: flex;
   flex-wrap: wrap;
   gap: 8px 12px;
-  padding: 6px 10px;
-  border-radius: 8px;
-  background: rgba(255, 255, 255, 0.92);
-  border: 1px solid #e2e8f0;
+  padding: 5px 9px;
+  border-radius: 3px;
+  background: rgba(15, 23, 42, 0.88);
+  border: 1px solid #334155;
   font-size: 11px;
-  color: #475569;
+  color: #e2e8f0;
   pointer-events: none;
 }
 
@@ -2552,9 +2612,9 @@ pre {
 
 .topo-legend__swatch {
   display: inline-block;
-  width: 16px;
+  width: 18px;
   height: 0;
-  border-top: 2px solid #64748b;
+  border-top: 2px solid #94a3b8;
   vertical-align: middle;
 }
 
@@ -2567,8 +2627,8 @@ pre {
 }
 
 .react-flow__selection {
-  background: rgba(37, 99, 235, 0.08);
-  border: 1px solid rgba(37, 99, 235, 0.55);
+  background: rgba(51, 65, 85, 0.08);
+  border: 1px solid rgba(51, 65, 85, 0.7);
 }
 
 .topo-display-toggles {
@@ -3043,8 +3103,9 @@ pre {
 
 .topo-discover-modal__sub {
   margin: 4px 0 0;
-  font-size: 13px;
+  font-size: 12px;
   color: #64748b;
+  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
 }
 
 .topo-discover-modal__stats {
@@ -3225,18 +3286,20 @@ pre {
 }
 
 .react-flow__node.is-search-hit .topo-node__glyph {
-  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.85);
-  border-radius: 10px;
+  box-shadow: none;
+  outline: 2px solid rgba(245, 158, 11, 0.95);
+  outline-offset: 3px;
+  border-radius: 4px;
   animation: topo-search-pulse 0.85s ease 2;
 }
 
 @keyframes topo-search-pulse {
   0%,
   100% {
-    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.85);
+    outline-color: rgba(245, 158, 11, 0.95);
   }
   50% {
-    box-shadow: 0 0 0 6px rgba(245, 158, 11, 0.25);
+    outline-color: rgba(245, 158, 11, 0.35);
   }
 }
 
@@ -3264,18 +3327,18 @@ pre {
 }
 
 .topo-node.is-selected .topo-node__glyph {
-  outline: 2px solid #2563eb;
-  outline-offset: 5px;
-  border-radius: 999px;
+  outline: 2px solid #334155;
+  outline-offset: 3px;
+  border-radius: 4px;
 }
 
 .topo-node.is-selected .topo-node__icon {
-  transform: scale(1.08);
-  filter: var(--topo-icon-filter, none) drop-shadow(0 0 8px rgba(37, 99, 235, 0.55));
+  transform: none;
+  filter: var(--topo-icon-filter, none);
 }
 
 .topo-node.is-selected .topo-node__caption {
-  color: #1d4ed8;
+  color: #0f172a;
   font-weight: 700;
 }
 
@@ -3291,15 +3354,38 @@ pre {
   transition: transform 0.12s ease, filter 0.12s ease;
 }
 
-/* Same plain-text style as edge port labels */
 .topo-node__caption {
-  margin-top: 2px;
-  color: #475569;
-  line-height: 1.25;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 1px;
+  margin-top: 3px;
+  color: #334155;
+  line-height: 1.2;
+  max-width: 160px;
+  pointer-events: none;
+}
+
+.topo-node__caption-name {
+  display: block;
+  max-width: 100%;
+  font-size: 11px;
+  font-weight: 700;
+  color: #0f172a;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.topo-node__caption-meta {
+  display: block;
+  max-width: 100%;
+  font-size: 10px;
+  color: #64748b;
+  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
   white-space: nowrap;
   overflow: hidden;
   text-overflow: ellipsis;
-  pointer-events: none;
 }
 
 .react-flow__edge-textbg {
diff --git a/web/src/pages/TopologyPage.tsx b/web/src/pages/TopologyPage.tsx
index 7d674b0..eb1028f 100644
--- a/web/src/pages/TopologyPage.tsx
+++ b/web/src/pages/TopologyPage.tsx
@@ -74,6 +74,43 @@ function FullscreenIcon({ exit }: { exit?: boolean }) {
   );
 }
 
+/** ASCII-safe separators ? avoid Unicode middots that corrupt on some editors. */
+const SEP = " / ";
+
+function ChevronIcon({ dir }: { dir: "left" | "right" }) {
+  const d = dir === "left" ? "M15 6l-6 6 6 6" : "M9 6l6 6-6 6";
+  return (
+    <svg viewBox="0 0 24 24" width="14" height="14" aria-hidden="true" className="topo-svg-icon">
+      <path fill="none" stroke="currentColor" strokeWidth="2.2" strokeLinecap="round" strokeLinejoin="round" d={d} />
+    </svg>
+  );
+}
+
+function PencilIcon() {
+  return (
+    <svg viewBox="0 0 24 24" width="14" height="14" aria-hidden="true" className="topo-svg-icon">
+      <path
+        fill="currentColor"
+        d="M3 17.25V21h3.75L17.81 9.94l-3.75-3.75L3 17.25zM20.71 7.04a1 1 0 0 0 0-1.41l-2.34-2.34a1 1 0 0 0-1.41 0l-1.83 1.83 3.75 3.75 1.83-1.83z"
+      />
+    </svg>
+  );
+}
+
+function CloseIcon() {
+  return (
+    <svg viewBox="0 0 24 24" width="14" height="14" aria-hidden="true" className="topo-svg-icon">
+      <path
+        fill="none"
+        stroke="currentColor"
+        strokeWidth="2.2"
+        strokeLinecap="round"
+        d="M6 6l12 12M18 6L6 18"
+      />
+    </svg>
+  );
+}
+
 type NeNodeData = {
   label: string;
   managed_ne_id: string;
@@ -193,15 +230,10 @@ function NeNode({ data, selected }: NodeProps<Node<NeNodeData>>) {
   const { hideIp, hideVendor, connectMode } = useContext(TopoDisplayContext);
   const tone = vendorTone(data.vendor);
   const name = data.label || (!hideIp ? data.ne_ip : "") || "NE";
-  const bits = [
-    name,
-    hideIp ? "" : data.ne_ip,
-    hideVendor ? "" : data.vendor,
-  ].filter((x, i, arr) => {
-    const s = String(x || "").trim();
-    if (!s) return false;
-    return arr.findIndex((y) => String(y || "").trim() === s) === i;
-  });
+  const secondary = [
+    hideIp || !data.ne_ip || data.ne_ip === name ? "" : data.ne_ip,
+    hideVendor || !data.vendor ? "" : data.vendor,
+  ].filter(Boolean);
   return (
     <div
       className={`topo-node topo-node--${tone}${selected ? " is-selected" : ""}${
@@ -223,7 +255,12 @@ function NeNode({ data, selected }: NodeProps<Node<NeNodeData>>) {
         />
         <RouterIcon />
       </div>
-      <div className="topo-node__caption">{bits.join(" ? ")}</div>
+      <div className="topo-node__caption">
+        <span className="topo-node__caption-name">{name}</span>
+        {secondary.length ? (
+          <span className="topo-node__caption-meta">{secondary.join(SEP)}</span>
+        ) : null}
+      </div>
     </div>
   );
 }
@@ -359,7 +396,7 @@ function graphToFlow(nodes: TopologyNodeItem[], edges: TopologyEdgeItem[], defau
   }));
   const rfEdges: Edge[] = edges.map((e) => {
     const src = e.source || "manual";
-    const label = [e.source_port, e.target_port].filter(Boolean).join(" ? ");
+    const label = [e.source_port, e.target_port].filter(Boolean).join(SEP);
     const data: EdgeStyleData = {
       source: src,
       source_port: e.source_port || "",
@@ -1115,7 +1152,7 @@ export function TopologyPage() {
             source_port: patch.source_port !== undefined ? patch.source_port : prev.source_port || "",
             target_port: patch.target_port !== undefined ? patch.target_port : prev.target_port || "",
           };
-          const portLabel = [data.source_port, data.target_port].filter(Boolean).join(" ? ");
+          const portLabel = [data.source_port, data.target_port].filter(Boolean).join(SEP);
           return withEdgeVisual({ ...e, data, label: portLabel || undefined }, edgeDefaults);
         }),
       );
@@ -1212,6 +1249,8 @@ export function TopologyPage() {
       if (e.key === "Escape") {
         closeCtxMenu();
         clearSelection();
+        connectClickRef.current = null;
+        setToolMode((m) => (m === "connect" ? "select" : m));
         return;
       }
       const mode = toolModeFromKey(e.key);
@@ -1541,7 +1580,7 @@ export function TopologyPage() {
           name,
           ip: ne.ip_address || "",
           vendor: "ZTE",
-          meta: `${ne.ip_address || "-"} ? ${ne.ne_type || "UME"}`,
+          meta: `${ne.ip_address || "-"}${SEP}${ne.ne_type || "UME"}`,
           connect_status: ne.connection_status || "",
         };
       });
@@ -1554,7 +1593,7 @@ export function TopologyPage() {
       name: ne.name || ne.ip_address,
       ip: ne.ip_address,
       vendor: ne.vendor,
-      meta: `${ne.ip_address} � ${ne.vendor}`,
+      meta: `${ne.ip_address}${SEP}${ne.vendor}`,
       connect_status: ne.connect_status,
     }));
   }, [paletteSource, neQuery.data, umeQuery.data]);
@@ -1594,7 +1633,7 @@ export function TopologyPage() {
             onClick={() => setSidebarCollapsed(false)}
           >
             <span className="topo-sidebar__rail-icon" aria-hidden="true">
-              ?
+              <ChevronIcon dir="right" />
             </span>
             <span className="topo-sidebar__rail-label">{t("topology.maps")}</span>
           </button>
@@ -1617,12 +1656,12 @@ export function TopologyPage() {
                   </button>
                   <button
                     type="button"
-                    className="btn btn--sm btn--ghost"
+                    className="btn btn--sm btn--ghost topo-icon-btn"
                     title={t("topology.collapseSidebar")}
                     aria-label={t("topology.collapseSidebar")}
                     onClick={() => setSidebarCollapsed(true)}
                   >
-                    ?
+                    <ChevronIcon dir="left" />
                   </button>
                 </div>
               </div>
@@ -1656,7 +1695,7 @@ export function TopologyPage() {
                             disabled={renameMapMut.isPending}
                             onClick={() => promptRenameMap(m.id, m.name)}
                           >
-                            ?
+                            <PencilIcon />
                           </button>
                           <button
                             type="button"
@@ -1667,7 +1706,7 @@ export function TopologyPage() {
                               if (window.confirm(msg)) deleteMapMut.mutate(m.id);
                             }}
                           >
-                            ?
+                            <CloseIcon />
                           </button>
                         </div>
                       </div>
@@ -1777,7 +1816,10 @@ export function TopologyPage() {
         <div className="topo-toolbar">
           <div className="topo-toolbar__row">
             <div className="topo-toolbar__title">
-              <strong>{maps.find((m) => m.id === mapId)?.name || t("topology.selectMap")}</strong>
+              <strong>
+                {maps.find((m) => m.id === mapId)?.name || t("topology.selectMap")}
+                {mapId && dirty ? " *" : ""}
+              </strong>
               {selectedNodes.length > 0 || selectedEdgeId ? (
                 <span className="topo-toolbar__meta">
                   {selectedNodes.length > 0
@@ -1868,7 +1910,8 @@ export function TopologyPage() {
                       connectClickRef.current = null;
                     }}
                   >
-                    {label}
+                    <span className="topo-tools__label">{label}</span>
+                    <kbd className="topo-tools__key">{key}</kbd>
                   </button>
                 ))}
               </div>
@@ -2085,7 +2128,7 @@ export function TopologyPage() {
                       >
                         <span className="topo-find-suggest__name">{n.data.label || n.id}</span>
                         <span className="topo-find-suggest__meta">
-                          {[n.data.ne_ip, n.data.vendor].filter(Boolean).join(" ? ")}
+                          {[n.data.ne_ip, n.data.vendor].filter(Boolean).join(SEP)}
                         </span>
                       </button>
                     ))
@@ -2101,6 +2144,7 @@ export function TopologyPage() {
           </div>
         </div>
 
+
         {discoverOpen ? (
           <div className="topo-discover">
             <div className="topo-discover__head">
@@ -2272,7 +2316,12 @@ export function TopologyPage() {
                 deleteKeyCode={null}
                 edgesFocusable
               >
-                <Background variant={BackgroundVariant.Dots} gap={16} size={1} color="#cbd5e1" />
+                <Background variant={BackgroundVariant.Dots} gap={16} size={1} color="#d8dee8" />
+                {toolMode === "connect" ? (
+                  <div className="topo-mode-hint" role="status">
+                    {t("topology.connectHint")}
+                  </div>
+                ) : null}
                 <Controls showInteractive>
                   <ControlButton
                     className="topo-fs-control"
@@ -2680,7 +2729,7 @@ export function TopologyPage() {
                   {discoverDetail.ne_name || discoverDetail.ne_ip || discoverDetail.ne_id}
                 </h3>
                 <p className="topo-discover-modal__sub">
-                  {[discoverDetail.ne_ip, discoverDetail.command].filter(Boolean).join(" ? ")}
+                  {[discoverDetail.ne_ip, discoverDetail.command].filter(Boolean).join(SEP)}
                 </p>
               </div>
               <span