diff --git a/play.html b/play.html
index f15f686..4c16fac 100644
--- a/play.html
+++ b/play.html
@@ -46,9 +46,146 @@
 
       #d2-toolbar-container {
         flex: 0 0 auto;
+        width: 100%;
         z-index: 50;
       }
 
+      #d2-toolbar,
+      .d2-toolbar {
+        position: relative;
+        z-index: 1000;
+        display: flex;
+        flex-direction: row;
+        flex-wrap: nowrap;
+        align-items: center;
+        justify-content: space-between;
+        gap: 12px;
+        width: 100%;
+        height: 32px;
+        min-height: 32px;
+        max-height: 32px;
+        padding: 0 12px;
+        box-sizing: border-box;
+        background: linear-gradient(180deg, #1b1712 0%, #0d0b08 100%);
+        border-bottom: 1px solid #4a3c24;
+        color: #d6c496;
+        font-family: var(--font-display);
+        font-size: 12px;
+        line-height: 1;
+        white-space: nowrap;
+        overflow-x: auto;
+        overflow-y: hidden;
+        user-select: none;
+      }
+
+      .d2-toolbar__group {
+        display: inline-flex;
+        flex-direction: row;
+        flex-wrap: nowrap;
+        align-items: center;
+        flex-shrink: 0;
+        gap: 6px;
+        white-space: nowrap;
+      }
+
+      .d2-toolbar__status {
+        display: inline-flex;
+        align-items: center;
+        gap: 6px;
+        padding: 3px 8px;
+        border-radius: 3px;
+        background: #14110d;
+        border: 1px solid #352b1b;
+      }
+
+      .d2-toolbar__status-dot {
+        width: 8px;
+        height: 8px;
+        border-radius: 50%;
+        display: inline-block;
+        background: #6b6b6b;
+        box-shadow: 0 0 4px rgba(0, 0, 0, 0.8);
+      }
+
+      .d2-toolbar__status-dot--disconnected { background: #767676; }
+      .d2-toolbar__status-dot--connecting { background: #e6a822; box-shadow: 0 0 6px #e6a822; }
+      .d2-toolbar__status-dot--bncs { background: #4495e8; box-shadow: 0 0 6px #4495e8; }
+      .d2-toolbar__status-dot--mcp { background: #36c5d6; box-shadow: 0 0 6px #36c5d6; }
+      .d2-toolbar__status-dot--d2gs { background: #2ecc71; box-shadow: 0 0 6px #2ecc71; }
+      .d2-toolbar__status-dot--error { background: #e74c3c; box-shadow: 0 0 6px #e74c3c; }
+
+      .d2-toolbar__rtt {
+        font-family: "JetBrains Mono", "Consolas", monospace;
+        font-size: 11px;
+        color: #a89974;
+      }
+
+      .d2-toolbar__label {
+        color: #b59e68;
+        font-size: 11px;
+        letter-spacing: 0.03em;
+      }
+
+      .d2-toolbar__select {
+        height: 22px;
+        padding: 0 6px;
+        background: #120f0b;
+        border: 1px solid #4a3c24;
+        border-radius: 2px;
+        color: #e2d1a0;
+        font-size: 11px;
+        cursor: pointer;
+        outline: none;
+      }
+
+      .d2-toolbar__select:hover,
+      .d2-toolbar__btn:hover {
+        border-color: #c7b377;
+        color: #fff2c6;
+      }
+
+      .d2-toolbar__btn {
+        display: inline-flex;
+        align-items: center;
+        justify-content: center;
+        height: 22px;
+        padding: 0 8px;
+        background: linear-gradient(180deg, #2b2316 0%, #17120b 100%);
+        border: 1px solid #574629;
+        border-radius: 2px;
+        color: #dfc991;
+        font-size: 11px;
+        cursor: pointer;
+      }
+
+      .d2-toolbar__btn--active {
+        background: linear-gradient(180deg, #524020 0%, #2e2310 100%);
+        border-color: #d4b46a;
+        color: #fff5d6;
+      }
+
+      .d2-toolbar__diag {
+        position: absolute;
+        top: 32px;
+        left: 12px;
+        right: 12px;
+        z-index: 1001;
+        display: none;
+        align-items: center;
+        justify-content: space-between;
+        padding: 6px 10px;
+        background: rgba(38, 12, 10, 0.96);
+        border: 1px solid #a93226;
+        border-top: none;
+        border-radius: 0 0 4px 4px;
+        color: #ffd6d1;
+        font-size: 12px;
+      }
+
+      .d2-toolbar__diag--visible {
+        display: flex;
+      }
+
       #play-workspace {
         flex: 1 1 auto;
         min-height: 0;
diff --git a/src/client/main.ts b/src/client/main.ts
index 08cb3ed..69becb2 100644
--- a/src/client/main.ts
+++ b/src/client/main.ts
@@ -169,7 +169,39 @@ async function bootPlayApp(): Promise<PlayAppController> {
   const initialSettings = settingsStore.get()
   setLang(initialSettings.lang)
 
+  let sessionRef: OnlineSession | null = null
+
+  const toolbar = new Toolbar({
+    store: settingsStore,
+    container: toolbarContainer,
+    callbacks: {
+      onLangChange: (lang: GameLang) => {
+        setLang(lang)
+        sessionRef?.hudManager.setLang(lang)
+      },
+      onViewportChange: (profile: ViewportProfile) => {
+        applyViewportProfileToDom(profile, {
+          stageEl,
+          glCanvas: viewCanvas,
+          hudCanvas,
+        })
+        sessionRef?.hudManager.resize(profile.width, profile.height)
+        sessionRef?.camera.resize(profile)
+      },
+      onAutomapRevealChange: (mode) => {
+        sessionRef?.automapView.setMode(mode)
+      },
+      onInspectorToggle: (open) => {
+        sessionRef?.packetInspector.setOpen(open)
+      },
+      onServerHostReconnect: (newHost) => {
+        void sessionRef?.disconnect(`Reconnecting to ${newHost}`)
+      },
+    },
+  })
+
   const initialCacheStatus = await registerAssetCache()
+  toolbar.setAssetCacheUsageBytes(initialCacheStatus.usageBytes)
 
   const minimap = new Minimap()
   const renderer = new SpriteRenderer(viewCanvas)
@@ -183,8 +215,6 @@ async function bootPlayApp(): Promise<PlayAppController> {
   let itemsAtlasHandle: AtlasHandle | undefined
   let lastRenderSnapshot: SceneFrameSnapshot | null = null
 
-  let sessionRef: OnlineSession | null = null
-
   const hudManager = new HudManager(hudCanvas, {
     onRenderAutomapOverlay: (ctx, font, logicalWidth, logicalHeight) => {
       minimap.drawHudOverlay(ctx, font, logicalWidth, logicalHeight)
@@ -339,35 +369,6 @@ async function bootPlayApp(): Promise<PlayAppController> {
     }
   }
 
-  const toolbar = new Toolbar({
-    store: settingsStore,
-    container: toolbarContainer,
-    callbacks: {
-      onLangChange: (lang: GameLang) => {
-        setLang(lang)
-        session.hudManager.setLang(lang)
-      },
-      onViewportChange: (profile: ViewportProfile) => {
-        applyViewportProfileToDom(profile, {
-          stageEl,
-          glCanvas: viewCanvas,
-          hudCanvas,
-        })
-        session.hudManager.resize(profile.width, profile.height)
-        session.camera.resize(profile)
-      },
-      onAutomapRevealChange: (mode) => {
-        session.automapView.setMode(mode)
-      },
-      onInspectorToggle: (open) => {
-        inspector.setOpen(open)
-      },
-      onServerHostReconnect: (newHost) => {
-        void session.disconnect(`Reconnecting to ${newHost}`)
-      },
-    },
-  })
-  toolbar.setAssetCacheUsageBytes(initialCacheStatus.usageBytes)
   void assetsReadyPromise.then(async () => {
     const updatedStatus = await getAssetCacheStatus()
     toolbar.setAssetCacheUsageBytes(updatedStatus.usageBytes)
diff --git a/src/client/toolbar/toolbar.css b/src/client/toolbar/toolbar.css
index 6acfa71..50b5cba 100644
--- a/src/client/toolbar/toolbar.css
+++ b/src/client/toolbar/toolbar.css
@@ -5,9 +5,11 @@
   position: relative;
   z-index: 1000;
   display: flex;
+  flex-direction: row;
+  flex-wrap: nowrap;
   align-items: center;
   justify-content: space-between;
-  gap: 10px;
+  gap: 12px;
   width: 100%;
   height: 32px;
   min-height: 32px;
@@ -17,15 +19,21 @@
   background: linear-gradient(180deg, #1b1712 0%, #0d0b08 100%);
   border-bottom: 1px solid #4a3c24;
   color: #d6c496;
-  font-family: "Exocet", "Cinzel", "Noto Serif SC", "PingFang SC", Georgia, serif;
+  font-family: var(--font-display, "D2Exocet", "Cinzel", "Noto Serif SC", "PingFang SC", Georgia, serif);
   font-size: 12px;
   line-height: 1;
+  white-space: nowrap;
+  overflow-x: auto;
+  overflow-y: hidden;
   user-select: none;
 }
 
 .d2-toolbar__group {
   display: inline-flex;
+  flex-direction: row;
+  flex-wrap: nowrap;
   align-items: center;
+  flex-shrink: 0;
   gap: 6px;
   white-space: nowrap;
 }
diff --git a/src/client/toolbar/toolbar.ts b/src/client/toolbar/toolbar.ts
index 2ca7b32..666eccc 100644
--- a/src/client/toolbar/toolbar.ts
+++ b/src/client/toolbar/toolbar.ts
@@ -82,13 +82,12 @@ export interface ToolbarSnapshot {
 }
 
 /**
- * Persistent 32px Top DOM Toolbar (`#d2-toolbar`) with 6 primary controls:
+ * Persistent 32px Top DOM Toolbar (`#d2-toolbar`) with 5 primary controls:
  * 1. Connection Status + RTT (`ms`) + Diagnostics (5-per-IP quota / WSS TLS error) + Inspector toggle
- * 2. Server Host Input (`www.laiseek.xyz` default, bare-IP over HTTPS guard, mid-game reconnect prompt)
- * 3. Live Language Toggle (`中` / `EN`)
- * 4. Lighting Preset Selector (`auto | noon | dusk | night | torch | cold | fullbright`)
- * 5. Automap Reveal Selector (`off | level | act`)
- * 6. Viewport Size Toggle (`800x600 | 1024x768`) + Asset Cache Clear button
+ * 2. Live Language Toggle (`中` / `EN`)
+ * 3. Lighting Preset Selector (`auto | noon | dusk | night | torch | cold | fullbright`)
+ * 4. Automap Reveal Selector (`off | level | act`)
+ * 5. Viewport Size Toggle (`800x600 | 1024x768`) + Asset Cache Clear button
  */
 export class Toolbar {
   private readonly store: SettingsStore
@@ -112,9 +111,6 @@ export class Toolbar {
   private statusDotEl: HTMLElement | null = null
   private statusTextEl: HTMLElement | null = null
   private rttTextEl: HTMLElement | null = null
-  private serverLabelEl: HTMLElement | null = null
-  private serverInputEl: HTMLInputElement | null = null
-  private serverApplyBtnEl: HTMLButtonElement | null = null
   private langBtnZhEl: HTMLButtonElement | null = null
   private langBtnEnEl: HTMLButtonElement | null = null
   private lightingLabelEl: HTMLElement | null = null
@@ -395,8 +391,146 @@ export class Toolbar {
     this.rootEl = null
   }
 
+  private ensureStyles(doc: Document): void {
+    if (!doc.head || doc.getElementById('d2-toolbar-styles')) return
+    const styleEl = doc.createElement('style')
+    styleEl.id = 'd2-toolbar-styles'
+    styleEl.textContent = `
+#d2-toolbar,
+.d2-toolbar {
+  position: relative;
+  z-index: 1000;
+  display: flex;
+  flex-direction: row;
+  flex-wrap: nowrap;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+  width: 100%;
+  height: 32px;
+  min-height: 32px;
+  max-height: 32px;
+  padding: 0 12px;
+  box-sizing: border-box;
+  background: linear-gradient(180deg, #1b1712 0%, #0d0b08 100%);
+  border-bottom: 1px solid #4a3c24;
+  color: #d6c496;
+  font-family: var(--font-display, "D2Exocet", "Cinzel", "Noto Serif SC", "PingFang SC", Georgia, serif);
+  font-size: 12px;
+  line-height: 1;
+  white-space: nowrap;
+  overflow-x: auto;
+  overflow-y: hidden;
+  user-select: none;
+}
+.d2-toolbar__group {
+  display: inline-flex;
+  flex-direction: row;
+  flex-wrap: nowrap;
+  align-items: center;
+  flex-shrink: 0;
+  gap: 6px;
+  white-space: nowrap;
+}
+.d2-toolbar__divider {
+  width: 1px;
+  height: 18px;
+  background: #3a2f1d;
+}
+.d2-toolbar__status {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  padding: 3px 8px;
+  border-radius: 3px;
+  background: #14110d;
+  border: 1px solid #352b1b;
+}
+.d2-toolbar__status-dot {
+  width: 8px;
+  height: 8px;
+  border-radius: 50%;
+  display: inline-block;
+  background: #6b6b6b;
+  box-shadow: 0 0 4px rgba(0, 0, 0, 0.8);
+}
+.d2-toolbar__status-dot--disconnected { background: #767676; }
+.d2-toolbar__status-dot--connecting { background: #e6a822; box-shadow: 0 0 6px #e6a822; }
+.d2-toolbar__status-dot--bncs { background: #4495e8; box-shadow: 0 0 6px #4495e8; }
+.d2-toolbar__status-dot--mcp { background: #36c5d6; box-shadow: 0 0 6px #36c5d6; }
+.d2-toolbar__status-dot--d2gs { background: #2ecc71; box-shadow: 0 0 6px #2ecc71; }
+.d2-toolbar__status-dot--error { background: #e74c3c; box-shadow: 0 0 6px #e74c3c; }
+.d2-toolbar__rtt {
+  font-family: "JetBrains Mono", "Consolas", monospace;
+  font-size: 11px;
+  color: #a89974;
+}
+.d2-toolbar__label {
+  color: #b59e68;
+  font-size: 11px;
+  letter-spacing: 0.03em;
+}
+.d2-toolbar__select {
+  height: 22px;
+  padding: 0 6px;
+  background: #120f0b;
+  border: 1px solid #4a3c24;
+  border-radius: 2px;
+  color: #e2d1a0;
+  font-size: 11px;
+  cursor: pointer;
+  outline: none;
+}
+.d2-toolbar__select:hover,
+.d2-toolbar__btn:hover {
+  border-color: #c7b377;
+  color: #fff2c6;
+}
+.d2-toolbar__btn {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  height: 22px;
+  padding: 0 8px;
+  background: linear-gradient(180deg, #2b2316 0%, #17120b 100%);
+  border: 1px solid #574629;
+  border-radius: 2px;
+  color: #dfc991;
+  font-size: 11px;
+  cursor: pointer;
+}
+.d2-toolbar__btn--active {
+  background: linear-gradient(180deg, #524020 0%, #2e2310 100%);
+  border-color: #d4b46a;
+  color: #fff5d6;
+}
+.d2-toolbar__diag {
+  position: absolute;
+  top: 32px;
+  left: 12px;
+  right: 12px;
+  z-index: 1001;
+  display: none;
+  align-items: center;
+  justify-content: space-between;
+  padding: 6px 10px;
+  background: rgba(38, 12, 10, 0.96);
+  border: 1px solid #a93226;
+  border-top: none;
+  border-radius: 0 0 4px 4px;
+  color: #ffd6d1;
+  font-size: 12px;
+}
+.d2-toolbar__diag--visible {
+  display: flex;
+}
+`
+    doc.head.appendChild(styleEl)
+  }
+
   private mountDom(container: HTMLElement | null): void {
     const doc = document
+    this.ensureStyles(doc)
     const root = doc.createElement('header')
     root.id = 'd2-toolbar'
     root.className = 'd2-toolbar'
@@ -430,35 +564,7 @@ export class Toolbar {
     statusGroup.appendChild(statusBadge)
     statusGroup.appendChild(inspectorBtn)
 
-    // Group 2: Server Host Input
-    const serverGroup = doc.createElement('div')
-    serverGroup.className = 'd2-toolbar__group'
-    const serverLabel = doc.createElement('label')
-    serverLabel.className = 'd2-toolbar__label'
-    serverLabel.htmlFor = 'd2-toolbar-server-host'
-    const serverInput = doc.createElement('input')
-    serverInput.type = 'text'
-    serverInput.id = 'd2-toolbar-server-host'
-    serverInput.className = 'd2-toolbar__input'
-    serverInput.value = this.serverInputValue
-    serverInput.addEventListener('keydown', (ev) => {
-      if (ev.key === 'Enter') {
-        ev.preventDefault()
-        this.submitServerHost(serverInput.value)
-      }
-    })
-    const serverApplyBtn = doc.createElement('button')
-    serverApplyBtn.type = 'button'
-    serverApplyBtn.id = 'd2-toolbar-server-apply'
-    serverApplyBtn.className = 'd2-toolbar__btn'
-    serverApplyBtn.addEventListener('click', () => {
-      this.submitServerHost(serverInput.value)
-    })
-    serverGroup.appendChild(serverLabel)
-    serverGroup.appendChild(serverInput)
-    serverGroup.appendChild(serverApplyBtn)
-
-    // Group 3: Language Toggle (中 / EN)
+    // Group 2: Language Toggle (中 / EN)
     const langGroup = doc.createElement('div')
     langGroup.className = 'd2-toolbar__group'
     const langBtnZh = doc.createElement('button')
@@ -478,7 +584,7 @@ export class Toolbar {
     langGroup.appendChild(langBtnZh)
     langGroup.appendChild(langBtnEn)
 
-    // Group 4: Lighting Selector
+    // Group 3: Lighting Selector
     const lightingGroup = doc.createElement('div')
     lightingGroup.className = 'd2-toolbar__group'
     const lightingLabel = doc.createElement('label')
@@ -493,7 +599,7 @@ export class Toolbar {
     lightingGroup.appendChild(lightingLabel)
     lightingGroup.appendChild(lightingSelect)
 
-    // Group 5: Automap Reveal Selector (Off / Level / Act)
+    // Group 4: Automap Reveal Selector (Off / Level / Act)
     const automapGroup = doc.createElement('div')
     automapGroup.className = 'd2-toolbar__group'
     const automapLabel = doc.createElement('label')
@@ -508,7 +614,7 @@ export class Toolbar {
     automapGroup.appendChild(automapLabel)
     automapGroup.appendChild(automapSelect)
 
-    // Group 6: Viewport Size Selector (800x600 / 1024x768) + Asset Cache Clear button
+    // Group 5: Viewport Size Selector (800x600 / 1024x768) + Asset Cache Clear button
     const viewportGroup = doc.createElement('div')
     viewportGroup.className = 'd2-toolbar__group'
     const viewportLabel = doc.createElement('label')
@@ -545,7 +651,6 @@ export class Toolbar {
     diagBanner.className = 'd2-toolbar__diag'
 
     root.appendChild(statusGroup)
-    root.appendChild(serverGroup)
     root.appendChild(langGroup)
     root.appendChild(lightingGroup)
     root.appendChild(automapGroup)
@@ -560,9 +665,6 @@ export class Toolbar {
     this.statusDotEl = dot
     this.statusTextEl = statusText
     this.rttTextEl = rttText
-    this.serverLabelEl = serverLabel
-    this.serverInputEl = serverInput
-    this.serverApplyBtnEl = serverApplyBtn
     this.langBtnZhEl = langBtnZh
     this.langBtnEnEl = langBtnEn
     this.lightingLabelEl = lightingLabel
@@ -598,21 +700,6 @@ export class Toolbar {
         ? 'd2-toolbar__btn d2-toolbar__btn--active'
         : 'd2-toolbar__btn'
     }
-    if (this.serverLabelEl) {
-      this.serverLabelEl.textContent = tToolbar('toolbar.server.label', lang)
-    }
-    if (this.serverInputEl) {
-      this.serverInputEl.placeholder = tToolbar('toolbar.server.placeholder', lang)
-      if (this.serverInputEl.value !== snap.serverInputValue) {
-        this.serverInputEl.value = snap.serverInputValue
-      }
-      this.serverInputEl.className = snap.serverInputValid
-        ? 'd2-toolbar__input'
-        : 'd2-toolbar__input d2-toolbar__input--invalid'
-    }
-    if (this.serverApplyBtnEl) {
-      this.serverApplyBtnEl.textContent = tToolbar('toolbar.server.apply', lang)
-    }
     if (this.langBtnZhEl) {
       this.langBtnZhEl.className =
         lang === 'zh' ? 'd2-toolbar__btn d2-toolbar__btn--active' : 'd2-toolbar__btn'