0911-noon

src/App.vue

@@ -2,6 +2,7 @@
 import { computed, onMounted, reactive, ref, watchEffect } from 'vue'
 import AIAssistant from './components/AIAssistant.vue'
 import { elements, type CircuitElement, type Preset } from './elements'
+import { formatValue } from './utils'
 
 // 1) 左侧面板元件清单（显式导入）
 type PaletteItem = CircuitElement
@@ -11,6 +12,9 @@ const palette: PaletteItem[] = [...elements]
 const viewportRef = ref<HTMLDivElement | null>(null)
 const worldRef = ref<HTMLDivElement | null>(null)
 
+// 右侧 AI 面板显示开关
+const showAI = ref(true)
+
 const state = reactive({
   scale: 1,
   minScale: 0.2,
@@ -102,8 +106,6 @@ function zoomAt(clientX: number, clientY: number, deltaY: number) {
 const DND_MIME = 'application/x-circuit-element'
 
 function onPaletteDragStart(e: DragEvent, item: PaletteItem) {
-  console.log(e);
-  
   if (!e.dataTransfer) return
   e.dataTransfer.setData(DND_MIME, item.key)
   e.dataTransfer.setData('text/plain', item.key)
@@ -122,13 +124,10 @@ function onCanvasDrop(e: DragEvent) {
   const item = palette.find(p => p.key === key)
   if (!item) return
   const { x, y } = clientToWorld(e.clientX, e.clientY)
-  // 吸附到网格（可选）
-  const gx = Math.round(x / state.gridSize) * state.gridSize
-  const gy = Math.round(y / state.gridSize) * state.gridSize
   const defSize = item.defaultSize ?? 64
   const props: Record<string, number | string> = {}
     ; (item.propertySchemas || []).forEach((p) => { props[p.key] = p.default })
-  const inst: Instance = { id: String(++idSeq), key: item.key, url: item.url, x: gx, y: gy, size: defSize, rotation: 0, props }
+  const inst: Instance = { id: String(++idSeq), key: item.key, url: item.url, x: x, y: y, size: defSize, rotation: 0, props }
   if (item.stateImages) inst.state = 'off'
   instances.push(inst)
 }
@@ -277,6 +276,39 @@ function isNearest(instId: string, cpIndex: number) {
   return !!n && n.instId === instId && n.cpIndex === cpIndex
 }
 
+// 悬停端点与其连通集高亮
+const hoveredEndpoint = ref<EndpointRef | null>(null)
+const connectedEndpointSet = computed<Set<string>>(() => {
+  const set = new Set<string>()
+  const start = hoveredEndpoint.value
+  if (!start) return set
+  // 构建无向邻接表（仅基于导线）
+  const key = (ep: EndpointRef) => `${ep.instId}:${ep.cpIndex}`
+  const adj = new Map<string, string[]>()
+  const add = (a: EndpointRef, b: EndpointRef) => {
+    const ka = key(a), kb = key(b)
+    if (!adj.has(ka)) adj.set(ka, [])
+    if (!adj.has(kb)) adj.set(kb, [])
+    adj.get(ka)!.push(kb)
+    adj.get(kb)!.push(ka)
+  }
+  for (const w of wires) add(w.a, w.b)
+  // BFS/DFS 查找连通端点
+  const startKey = key(start)
+  const stack = [startKey]
+  set.add(startKey)
+  while (stack.length) {
+    const cur = stack.pop()!
+    for (const nxt of adj.get(cur) || []) {
+      if (!set.has(nxt)) { set.add(nxt); stack.push(nxt) }
+    }
+  }
+  return set
+})
+function isConnectedEndpoint(instId: string, cpIndex: number) {
+  return connectedEndpointSet.value.has(`${instId}:${cpIndex}`)
+}
+
 // 7.5) 直流电路求解（MNA）
 // - 支持：电压源(battery)、电阻(resistor/light_bulb/meter)、开关(ON=0V源，OFF=断开)、电感(DC=0V源)、电容(DC=断开)
 // - 结果：每个实例的端口电压差与电流（方向：从连接点0 -> 连接点1 为正）
@@ -528,25 +560,7 @@ function gaussianSolve(A: number[][], b: number[]): number[] | null {
 // 绑定求解到响应式数据
 watchEffect(() => { solveMNA() })
 
-function formatValue(v: number | null, unit: string) {
-  if (v == null || !Number.isFinite(v)) return '—'
-  // 简易工程计数法
-  const absv = Math.abs(v)
-  const units = [
-    { s: 1e-9, u: 'n' },
-    { s: 1e-6, u: 'µ' },
-    { s: 1e-3, u: 'm' },
-    { s: 1, u: '' },
-    { s: 1e3, u: 'k' },
-    { s: 1e6, u: 'M' },
-  ]
-  let u = ''
-  let val = v
-  for (let i = units.length - 1; i >= 0; i--) {
-    if (absv >= units[i].s) { u = units[i].u; val = v / units[i].s; break }
-  }
-  return `${val.toFixed(3)} ${u}${unit}`
-}
+
 
 function meterText(inst: Instance) {
   const live = instLive[inst.id]
@@ -557,7 +571,7 @@ function meterText(inst: Instance) {
   try {
     // 允许两种形态："(i)=>..." 或 "(i,v,props)=>..."
     // 使用字符串拼接避免模板字符串与用户代码中的反引号冲突
-    const fn = new Function('i','r','props', 'return (' + code + ')(i, r, props)')
+    const fn = new Function('i', 'r', 'props', 'return (' + code + ')(i, r, props)')
     const out = fn(i, r, inst.props)
     return String(out)
   } catch {
@@ -711,7 +725,6 @@ function loadFromJSONText(text: string) {
   // 兼容校验
   const world = obj.world || {}
   const rawInstances = Array.isArray(obj.instances) ? obj.instances : []
-  const rawWires = Array.isArray(obj.wires) ? obj.wires : []
 
   // 过滤仅保留存在于库里的元件
   const knownKeys = new Set(elements.map(e => e.key))
@@ -734,64 +747,46 @@ function loadFromJSONText(text: string) {
       props: rawProps,
       state: r.state === 'on' || r.state === 'off' ? r.state : undefined,
     }
-    // 暂存连接信息在实例对象上（不入 props）以便后续重建导线
-    ;(inst as any).__savedConnections = savedConnections
+      // 暂存连接信息在实例对象上（不入 props）以便后续重建导线
+      ; (inst as any).__savedConnections = savedConnections
     validInstances.push(inst)
   }
 
   // 基于实例与元件接线点数量校验导线
   const instMap = new Map(validInstances.map(i => [i.id, i]))
   const validWires: Wire[] = []
-  if (rawWires.length > 0) {
-    // 旧格式：直接读取 wires
-    for (const w of rawWires) {
-      if (!w || typeof w !== 'object') continue
-      const a = w.a, b = w.b
-      if (!a || !b) continue
-      const ia = instMap.get(String(a.instId))
-      const ib = instMap.get(String(b.instId))
-      if (!ia || !ib) continue
-      const elemA = elements.find(e => e.key === ia.key)
-      const elemB = elements.find(e => e.key === ib.key)
-      const cpsA = elemA?.connectionPoints?.length ?? 0
-      const cpsB = elemB?.connectionPoints?.length ?? 0
-      const cpa = safeNumber(a.cpIndex)
-      const cpb = safeNumber(b.cpIndex)
-      if (cpa < 0 || cpa >= cpsA || cpb < 0 || cpb >= cpsB) continue
-      validWires.push({ id: String(w.id ?? (++wireSeq)), a: { instId: String(a.instId), cpIndex: cpa }, b: { instId: String(b.instId), cpIndex: cpb } })
-    }
-  } else {
-    // 新格式：从每个实例 props.__connections 重建导线（去重）
-    const dedup = new Set<string>()
-    const getKey = (a: EndpointRef, b: EndpointRef) => {
-      const k1 = `${a.instId}:${a.cpIndex}`
-      const k2 = `${b.instId}:${b.cpIndex}`
-      return k1 < k2 ? `${k1}|${k2}` : `${k2}|${k1}`
-    }
-    for (const inst of validInstances) {
-      const conns: SaveConnections | undefined = (inst as any).__savedConnections
-      if (!conns) continue
-      const elem = elements.find(e => e.key === inst.key)
-      const cps = elem?.connectionPoints?.length ?? 0
-      for (const [cpStr, arr] of Object.entries(conns)) {
-        const cpi = safeNumber(cpStr)
-        if (cpi < 0 || cpi >= cps) continue
-        for (const ref of arr || []) {
-          const tgt = instMap.get(String(ref.instId))
-          if (!tgt) continue
-          const elemB = elements.find(e => e.key === tgt.key)
-          const cpsB = elemB?.connectionPoints?.length ?? 0
-          const cpb = safeNumber(ref.cpIndex)
-          if (cpb < 0 || cpb >= cpsB) continue
-          const a: EndpointRef = { instId: inst.id, cpIndex: cpi }
-          const b: EndpointRef = { instId: String(ref.instId), cpIndex: cpb }
-          const key = getKey(a, b)
-          if (dedup.has(key)) continue
-          dedup.add(key)
-          validWires.push({ id: String(++wireSeq), a, b })
-        }
+
+  // 从每个实例 props.__connections 重建导线（去重）
+  const dedup = new Set<string>()
+  const getKey = (a: EndpointRef, b: EndpointRef) => {
+    const k1 = `${a.instId}:${a.cpIndex}`
+    const k2 = `${b.instId}:${b.cpIndex}`
+    return k1 < k2 ? `${k1}|${k2}` : `${k2}|${k1}`
+  }
+  for (const inst of validInstances) {
+    const conns: SaveConnections | undefined = (inst as any).__savedConnections
+    if (!conns) continue
+    const elem = elements.find(e => e.key === inst.key)
+    const cps = elem?.connectionPoints?.length ?? 0
+    for (const [cpStr, arr] of Object.entries(conns)) {
+      const cpi = safeNumber(cpStr)
+      if (cpi < 0 || cpi >= cps) continue
+      for (const ref of arr || []) {
+        const tgt = instMap.get(String(ref.instId))
+        if (!tgt) continue
+        const elemB = elements.find(e => e.key === tgt.key)
+        const cpsB = elemB?.connectionPoints?.length ?? 0
+        const cpb = safeNumber(ref.cpIndex)
+        if (cpb < 0 || cpb >= cpsB) continue
+        const a: EndpointRef = { instId: inst.id, cpIndex: cpi }
+        const b: EndpointRef = { instId: String(ref.instId), cpIndex: cpb }
+        const key = getKey(a, b)
+        if (dedup.has(key)) continue
+        dedup.add(key)
+        validWires.push({ id: String(++wireSeq), a, b })
       }
     }
+
   }
 
   // 写回世界与状态
@@ -861,14 +856,14 @@ function deleteSelected() {
 </script>
 
 <template>
-  <div class="app">
+  <div class="app" :style="{ '--ai-width': showAI ? '360px' : '0px' }">
     <!-- 左侧元件面板 -->
     <aside class="sidebar">
       <h2>元件</h2>
       <div class="palette">
         <div v-for="item in palette" :key="item.key" class="palette-item" draggable="true"
           @dragstart="(e) => onPaletteDragStart(e, item)" :title="item.name">
-          <img :src="item.url" :alt="item.name" draggable="false"/>
+          <img :src="item.url" :alt="item.name" draggable="false" />
           <span class="label">{{ item.name }}</span>
         </div>
       </div>
@@ -877,11 +872,11 @@ function deleteSelected() {
         <button class="btn" @click="onExportJSON">导出 JSON</button>
         <button class="btn" @click="triggerImport">导入 JSON</button>
         <input ref="importInputRef" type="file" accept="application/json,.json" class="hidden-file"
-               @change="onImportFileChange" />
+          @change="onImportFileChange" />
       </div>
     </aside>
 
-  <!-- 画布视口（可平移、缩放、接收拖拽） -->
+    <!-- 画布视口（可平移、缩放、接收拖拽） -->
     <main class="viewport" ref="viewportRef" @mousedown="onViewportMouseDown"
       @mousemove="(e) => { onViewportMouseMove(e); onViewportMouseMoveDrag(e); onViewportMouseMoveTrack(e) }"
       @mouseup="() => { onViewportMouseUp(); onViewportMouseUpDrag() }"
@@ -902,30 +897,25 @@ function deleteSelected() {
                 :y1="getConnectionPointWorldPos(getInstance(w.a.instId)!, w.a.cpIndex).y"
                 :x2="getConnectionPointWorldPos(getInstance(w.b.instId)!, w.b.cpIndex).x"
                 :y2="getConnectionPointWorldPos(getInstance(w.b.instId)!, w.b.cpIndex).y">
-                <stop offset="0%" stop-color="#f3f4f6"/>
-                <stop offset="100%" stop-color="#6b7280"/>
+                <stop offset="0%" stop-color="#f3f4f6" />
+                <stop offset="100%" stop-color="#6b7280" />
               </linearGradient>
             </template>
           </defs>
           <g>
             <!-- 分层导线：底层暗色，顶层渐变高光，圆角端点，更有质感 -->
             <g v-for="w in wires" :key="w.id" class="wire-group" filter="url(#wireShadow)"
-               @click.stop="(e) => removeWire(w.id, e)">
-              <line class="wire-base"
-                :x1="getConnectionPointWorldPos(getInstance(w.a.instId)!, w.a.cpIndex).x"
+              @click.stop="(e) => removeWire(w.id, e)">
+              <line class="wire-base" :x1="getConnectionPointWorldPos(getInstance(w.a.instId)!, w.a.cpIndex).x"
+                :y1="getConnectionPointWorldPos(getInstance(w.a.instId)!, w.a.cpIndex).y"
+                :x2="getConnectionPointWorldPos(getInstance(w.b.instId)!, w.b.cpIndex).x"
+                :y2="getConnectionPointWorldPos(getInstance(w.b.instId)!, w.b.cpIndex).y" stroke-linecap="round"
+                vector-effect="non-scaling-stroke" />
+              <line class="wire-highlight" :x1="getConnectionPointWorldPos(getInstance(w.a.instId)!, w.a.cpIndex).x"
                 :y1="getConnectionPointWorldPos(getInstance(w.a.instId)!, w.a.cpIndex).y"
                 :x2="getConnectionPointWorldPos(getInstance(w.b.instId)!, w.b.cpIndex).x"
                 :y2="getConnectionPointWorldPos(getInstance(w.b.instId)!, w.b.cpIndex).y"
-                stroke-linecap="round"
-                vector-effect="non-scaling-stroke" />
-              <line class="wire-highlight"
-                :x1="getConnectionPointWorldPos(getInstance(w.a.instId)!, w.a.cpIndex).x"
-                :y1="getConnectionPointWorldPos(getInstance(w.a.instId)!, w.a.cpIndex).y"
-                :x2="getConnectionPointWorldPos(getInstance(w.b.instId)!, w.b.cpIndex).x"
-                :y2="getConnectionPointWorldPos(getInstance(w.b.instId)!, w.b.cpIndex).y"
-                :stroke="'url(#wireGrad-' + w.id + ')'"
-                stroke-linecap="round"
-                vector-effect="non-scaling-stroke" />
+                :stroke="'url(#wireGrad-' + w.id + ')'" stroke-linecap="round" vector-effect="non-scaling-stroke" />
             </g>
 
             <!-- 预览线：当选中一个端点时，显示到鼠标或吸附端点的线 -->
@@ -938,8 +928,9 @@ function deleteSelected() {
 
         <!-- 已放置的元件（可拖动） -->
         <div v-for="inst in instances" :key="inst.id" class="inst" :class="{ selected: selectedId === inst.id }"
-          :style="{ left: inst.x + 'px', top: inst.y + 'px', transform: 'translate(-50%, -50%) rotate(' + (inst.rotation || 0) + 'deg)'}" @mousedown="(e) => onInstanceMouseDown(e, inst)"
-          @click.stop="() => selectInstance(inst.id)" :title="inst.key">
+          :style="{ left: inst.x + 'px', top: inst.y + 'px', transform: 'translate(-50%, -50%) rotate(' + (inst.rotation || 0) + 'deg)' }"
+          @mousedown="(e) => onInstanceMouseDown(e, inst)" @click.stop="() => selectInstance(inst.id)"
+          :title="inst.key">
           <div class="inst-box" :style="{ width: inst.size + 'px', height: inst.size + 'px' }">
             <img
               :src="(elements.find(e => e.key === inst.key)?.stateImages ? (inst.state === 'on' ? elements.find(e => e.key === inst.key)!.stateImages!.on : elements.find(e => e.key === inst.key)!.stateImages!.off) : inst.url)"
@@ -948,14 +939,14 @@ function deleteSelected() {
 
             <!-- 灯泡发散光线叠加层 -->
             <svg v-if="inst.key === 'light_bulb'" class="bulb-glow" :width="inst.size" :height="inst.size"
-                 :viewBox="'0 0 ' + inst.size + ' ' + inst.size" aria-hidden="true">
+              :viewBox="'0 0 ' + inst.size + ' ' + inst.size" aria-hidden="true">
               <g :opacity="getBulbGlow(inst).opacity">
                 <line v-for="k in getBulbGlow(inst).count" :key="k"
-                      :x1="(inst.size/2) + Math.cos(2*Math.PI*(k-1)/getBulbGlow(inst).count)*(inst.size*0.42)"
-                      :y1="(inst.size/2) + Math.sin(2*Math.PI*(k-1)/getBulbGlow(inst).count)*(inst.size*0.42)"
-                      :x2="(inst.size/2) + Math.cos(2*Math.PI*(k-1)/getBulbGlow(inst).count)*(inst.size*(0.42 + getBulbGlow(inst).lenFrac))"
-                      :y2="(inst.size/2) + Math.sin(2*Math.PI*(k-1)/getBulbGlow(inst).count)*(inst.size*(0.42 + getBulbGlow(inst).lenFrac))"
-                      stroke="#f59e0b" stroke-width="2" stroke-linecap="round" vector-effect="non-scaling-stroke" />
+                  :x1="(inst.size / 2) + Math.cos(2 * Math.PI * (k - 1) / getBulbGlow(inst).count) * (inst.size * 0.42)"
+                  :y1="(inst.size / 2) + Math.sin(2 * Math.PI * (k - 1) / getBulbGlow(inst).count) * (inst.size * 0.42)"
+                  :x2="(inst.size / 2) + Math.cos(2 * Math.PI * (k - 1) / getBulbGlow(inst).count) * (inst.size * (0.42 + getBulbGlow(inst).lenFrac))"
+                  :y2="(inst.size / 2) + Math.sin(2 * Math.PI * (k - 1) / getBulbGlow(inst).count) * (inst.size * (0.42 + getBulbGlow(inst).lenFrac))"
+                  stroke="#f59e0b" stroke-width="2" stroke-linecap="round" vector-effect="non-scaling-stroke" />
               </g>
             </svg>
 
@@ -972,34 +963,36 @@ function deleteSelected() {
             :key="inst.id + '-' + idx">
             <div class="endpoint" :class="{
               active: pendingEndpoint && pendingEndpoint.instId === inst.id && pendingEndpoint.cpIndex === idx,
-              hover: isNearest(inst.id, idx)
+              hover: isNearest(inst.id, idx),
+              connected: hoveredEndpoint && isConnectedEndpoint(inst.id, idx)
             }" :style="{
-                  left: getConnectionPointWorldPos(inst, idx).x + 'px',
-                  top: getConnectionPointWorldPos(inst, idx).y + 'px'
-                }" @click.stop="(e) => onEndpointClick(inst.id, idx, e)" :title="cp.name || ('P' + (idx + 1))"></div>
+              left: getConnectionPointWorldPos(inst, idx).x + 'px',
+              top: getConnectionPointWorldPos(inst, idx).y + 'px'
+            }" @click.stop="(e) => onEndpointClick(inst.id, idx, e)"
+              @mouseenter="() => { hoveredEndpoint = { instId: inst.id, cpIndex: idx } }"
+              @mouseleave="() => { if (hoveredEndpoint && hoveredEndpoint.instId === inst.id && hoveredEndpoint.cpIndex === idx) hoveredEndpoint = null }"
+              :title="cp.name || ('P' + (idx + 1))"></div>
           </template>
         </div>
       </div>
     </main>
 
     <!-- 右侧 AI 助手面板 -->
-    <aside class="ai-aside">
-      <AIAssistant :state="aiState" @error="onAiError" />
+    <aside v-if="showAI" class="ai-aside">
+      <AIAssistant :state="aiState" @error="onAiError" @close="showAI = false" />
     </aside>
+    <button v-else class="ai-reopen" title="打开 AI 助手" @click="showAI = true">◀</button>
 
     <!-- 底部属性面板：编辑选中元件的业务属性（非尺寸） -->
-  <footer v-if="selectedInst" class="bottom-panel">
+    <footer v-if="selectedInst" class="bottom-panel" :style="{ right: showAI ? '360px' : '0' }">
       <div class="panel-inner">
         <div class="prop-title">{{ selectedInst.key }} 属性</div>
         <!-- 预设按钮区域：显示当前元件的预设，点击一键应用 -->
         <div v-if="selectedMeta?.preset?.length" class="presets">
           <span class="preset-label">预设</span>
-          <button
-            v-for="p in selectedMeta!.preset"
-            :key="p.name"
-            class="preset-btn"
-            @click.stop="applyPreset(p)"
-          >{{ p.name }}</button>
+          <button v-for="p in selectedMeta!.preset" :key="p.name" class="preset-btn" @click.stop="applyPreset(p)">{{
+            p.name
+            }}</button>
         </div>
         <div class="props">
           <!-- 实时电学量 -->
@@ -1017,8 +1010,10 @@ function deleteSelected() {
             <input type="range" min="-180" max="180" step="1" v-model.number="selectedInst!.rotation" />
             <input type="number" class="deg-input" step="1" v-model.number="selectedInst!.rotation" />
             <span class="unit">deg</span>
-            <button class="rot-btn" @click="selectedInst!.rotation = ((selectedInst!.rotation || 0) - 45 + 360) % 360">-45°</button>
-            <button class="rot-btn" @click="selectedInst!.rotation = ((selectedInst!.rotation || 0) + 45) % 360">+45°</button>
+            <button class="rot-btn"
+              @click="selectedInst!.rotation = ((selectedInst!.rotation || 0) - 45 + 360) % 360">-45°</button>
+            <button class="rot-btn"
+              @click="selectedInst!.rotation = ((selectedInst!.rotation || 0) + 45) % 360">+45°</button>
           </label>
           <template v-for="schema in (elements.find(e => e.key === selectedInst!.key)?.propertySchemas || [])"
             :key="schema.key">
@@ -1044,7 +1039,8 @@ function deleteSelected() {
 <style scoped>
 .app {
   display: grid;
-  grid-template-columns: 140px 1fr 360px; /* 左栏 / 画布 / AI 辅助 */
+  grid-template-columns: 140px 1fr var(--ai-width, 360px);
+  /* 左栏 / 画布 / AI 辅助 */
   grid-template-rows: 100vh;
   overflow: hidden;
 }
@@ -1063,6 +1059,7 @@ function deleteSelected() {
   gap: 8px;
   align-items: center;
 }
+
 .file-actions .btn {
   padding: 6px 10px;
   border: 1px solid #e5e7eb;
@@ -1071,8 +1068,14 @@ function deleteSelected() {
   color: #111827;
   cursor: pointer;
 }
-.file-actions .btn:hover { background: #f3f4f6; }
-.hidden-file { display: none; }
+
+.file-actions .btn:hover {
+  background: #f3f4f6;
+}
+
+.hidden-file {
+  display: none;
+}
 
 .sidebar h2 {
   margin: 0 0 8px 0;
@@ -1159,6 +1162,26 @@ function deleteSelected() {
   overflow: hidden;
 }
 
+/* 右侧重新打开箭头按钮（在隐藏时显示） */
+.ai-reopen {
+  position: fixed;
+  right: 8px;
+  top: 50%;
+  transform: translateY(-50%);
+  z-index: 10;
+  padding: 8px 10px;
+  border: 1px solid #e5e7eb;
+  border-radius: 999px 0 0 999px;
+  background: #fff;
+  color: #111827;
+  cursor: pointer;
+  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
+}
+
+.ai-reopen:hover {
+  background: #f3f4f6;
+}
+
 .world {
   position: absolute;
   left: 0;
@@ -1185,19 +1208,30 @@ function deleteSelected() {
 }
 
 /* 新增：分层导线样式 */
-.wire-group { cursor: pointer; }
+.wire-group {
+  cursor: pointer;
+}
+
 .wire-base {
   stroke: #111827;
   stroke-width: 3;
   opacity: 0.85;
 }
+
 .wire-highlight {
   stroke-width: 2;
   mix-blend-mode: multiply;
 }
+
 /* 悬停时微弱高亮 */
-.wire-group:hover .wire-base { opacity: 0.95; }
-.wire-group:hover .wire-highlight { filter: brightness(1.06); }
+.wire-group:hover .wire-base {
+  opacity: 0.95;
+}
+
+.wire-group:hover .wire-highlight {
+  filter: brightness(1.06);
+}
+
 /* 放大可点击区域（不可见）以提升命中，通过 pointer-events 控制组级点击 */
 .wire-hit {
   stroke: transparent;
@@ -1205,7 +1239,11 @@ function deleteSelected() {
 }
 
 /* 预览线保留原 class 名，便于最小改动 */
-.wire { stroke: #111827; stroke-width: 2; }
+.wire {
+  stroke: #111827;
+  stroke-width: 2;
+}
+
 .wire.preview {
   stroke: #3b82f6;
   stroke-dasharray: 10 6;
@@ -1214,8 +1252,13 @@ function deleteSelected() {
 }
 
 @keyframes dash-move {
-  from { stroke-dashoffset: 0; }
-  to { stroke-dashoffset: -32; }
+  from {
+    stroke-dashoffset: 0;
+  }
+
+  to {
+    stroke-dashoffset: -32;
+  }
 }
 
 .inst {
@@ -1284,11 +1327,21 @@ function deleteSelected() {
   transform: translate(-50%, -50%) scale(1.25);
 }
 
+/* 连通端点高亮：当某端点悬停时，其所有通过导线连通的端点以强调色显示 */
+.endpoint.connected {
+  border-color: #10b981;
+  /* teal-500 */
+  background: #ecfdf5;
+  /* teal-50 */
+  transform: translate(-50%, -50%) scale(1.25);
+}
+
 .bottom-panel {
   position: fixed;
   left: 140px;
   /* 与左侧栏对齐 */
-  right: 360px; /* 让出 AI 侧栏宽度 */
+  right: 360px;
+  /* 默认让出 AI 侧栏宽度，实际由内联样式覆盖 */
   bottom: 0;
   background: #f9fafb;
   border-top: 1px solid #e5e7eb;
@@ -1305,6 +1358,7 @@ function deleteSelected() {
 .panel-actions {
   margin-left: auto;
 }
+
 .danger-btn {
   padding: 6px 10px;
   border: 1px solid #fecaca;
@@ -1314,6 +1368,7 @@ function deleteSelected() {
   cursor: pointer;
   width: max-content;
 }
+
 .danger-btn:hover {
   background: #fecaca;
   border-color: #ef4444;
@@ -1325,10 +1380,12 @@ function deleteSelected() {
   align-items: center;
   gap: 8px;
 }
+
 .preset-label {
   color: #4b5563;
   font-size: 12px;
 }
+
 .preset-btn {
   padding: 4px 8px;
   border: 1px solid #e5e7eb;
@@ -1337,7 +1394,10 @@ function deleteSelected() {
   color: #111827;
   cursor: pointer;
 }
-.preset-btn:hover { background: #f3f4f6; }
+
+.preset-btn:hover {
+  background: #f3f4f6;
+}
 
 .bottom-panel .props {
   display: flex;
@@ -1362,7 +1422,10 @@ function deleteSelected() {
 }
 
 /* 旋转控制样式 */
-.deg-input { width: 70px; }
+.deg-input {
+  width: 70px;
+}
+
 .rot-btn {
   padding: 4px 8px;
   border: 1px solid #e5e7eb;
@@ -1371,5 +1434,8 @@ function deleteSelected() {
   color: #111827;
   cursor: pointer;
 }
-.rot-btn:hover { background: #f3f4f6; }
+
+.rot-btn:hover {
+  background: #f3f4f6;
+}
 </style>

src/components/AIAssistant.vue

@@ -11,6 +11,7 @@ const props = defineProps<{
 // 向父组件发出事件：可选，用于保存/载入 AI 偏好设置
 const emit = defineEmits<{
     (e: 'error', err: string): void
+    (e: 'close'): void
 }>()
 
 let client: OpenAI = new OpenAI({
@@ -109,6 +110,7 @@ onMounted(() => nextTick(scrollToBottom))
     <div class="ai-panel">
         <header class="ai-header">
             <div class="title">AI 助手</div>
+            <button class="close-btn" title="关闭" @click="emit('close')">×</button>
         </header>
 
         <div class="chat-list" ref="listRef">
@@ -152,6 +154,18 @@ onMounted(() => nextTick(scrollToBottom))
     color: #111827;
 }
 
+.close-btn {
+    padding: 4px 8px;
+    border: 1px solid #d1d5db;
+    border-radius: 6px;
+    background: #fff;
+    color: #111827;
+    cursor: pointer;
+    font-weight: 700;
+    line-height: 1;
+}
+.close-btn:hover { background: #f3f4f6; }
+
 .key-box {
     flex: 1;
     display: flex;

src/components/PalettePanel.vue

@@ -0,0 +1,8 @@
+<script setup lang="ts">
+
+import { elements, type CircuitElement, type Preset } from '../elements'
+
+// 1) 左侧面板元件清单（显式导入）
+type PaletteItem = CircuitElement
+const palette: PaletteItem[] = [...elements]
+</script>

src/utils.ts

@@ -0,0 +1,19 @@
+export function formatValue(v: number | null, unit: string) {
+  if (v == null || !Number.isFinite(v)) return '—'
+  // 简易工程计数法
+  const absv = Math.abs(v)
+  const units = [
+    { s: 1e-9, u: 'n' },
+    { s: 1e-6, u: 'µ' },
+    { s: 1e-3, u: 'm' },
+    { s: 1, u: '' },
+    { s: 1e3, u: 'k' },
+    { s: 1e6, u: 'M' },
+  ]
+  let u = ''
+  let val = v
+  for (let i = units.length - 1; i >= 0; i--) {
+    if (absv >= units[i].s) { u = units[i].u; val = v / units[i].s; break }
+  }
+  return `${val.toFixed(3)} ${u}${unit}`
+}