feat(game): PUA激励台增加HC消耗机制，费用=当前HC×15%，余额不足时禁用，防止无限激励破坏平衡

app/game/page.tsx

@@ -21,6 +21,7 @@ interface PuaResult {
   title: string
   desc: string
   effect: EffectType
+  cost?: number   // 实际扣除的 HC（前端填写）
 }
 
 const EFFECT_META: Record<EffectType, { label: string; color: string; icon: string }> = {
@@ -39,26 +40,57 @@ const PUA_PLACEHOLDERS = [
   '大家加油，相信自己！',
 ]
 
+// ── 费用计算：基于当前HC的15%，最低20，最高200，取整到10的倍数 ────────────
+function calcPuaCost(hc: number): number {
+  const raw = Math.ceil(hc * 0.15)
+  const rounded = Math.ceil(raw / 10) * 10   // 向上取到整十
+  return Math.max(20, Math.min(200, rounded))
+}
+
 // ── PUA 输入面板 ─────────────────────────────────────────────────────────────
-function PuaPanel({ gameReady }: { gameReady: boolean }) {
+function PuaPanel({ gameReady, hc }: { gameReady: boolean; hc: number }) {
   const [text, setText] = useState('')
   const [loading, setLoading] = useState(false)
   const [result, setResult] = useState<PuaResult | null>(null)
   const [history, setHistory] = useState<PuaResult[]>([])
+  const [insufficient, setInsufficient] = useState(false)
   const textareaRef = useRef<HTMLTextAreaElement>(null)
-  const placeholder = PUA_PLACEHOLDERS[Math.floor(Math.random() * PUA_PLACEHOLDERS.length)]
+  const placeholder = useRef(PUA_PLACEHOLDERS[Math.floor(Math.random() * PUA_PLACEHOLDERS.length)]).current
+
+  const cost = calcPuaCost(hc)
+  const canAfford = hc >= cost
 
   const handleSubmit = useCallback(async () => {
     if (!text.trim() || loading || !gameReady) return
+
+    // 先从游戏扣除 HC（扣不到则拒绝）
+    const spendHC: ((n: number) => boolean) | undefined =
+      typeof window !== 'undefined' ? (window as any).__gameSpendHC : undefined
+
+    const currentHC: number =
+      typeof window !== 'undefined'
+        ? ((window as any).__gameGetHC?.() ?? hc)
+        : hc
+
+    const actualCost = calcPuaCost(currentHC)
+
+    if (!spendHC?.(actualCost)) {
+      setInsufficient(true)
+      setTimeout(() => setInsufficient(false), 2000)
+      return
+    }
+
     setLoading(true)
     setResult(null)
+    setInsufficient(false)
     try {
       const res = await fetch('/api/pua-score', {
         method: 'POST',
         headers: { 'Content-Type': 'application/json' },
         body: JSON.stringify({ text: text.trim() }),
       })
-      const data: PuaResult = await res.json()
+      const data: PuaResult & { cost?: number } = await res.json()
+      data.cost = actualCost
       setResult(data)
       setHistory(prev => [data, ...prev].slice(0, 5))
       // 通知游戏场景应用 buff
@@ -70,7 +102,7 @@ function PuaPanel({ gameReady }: { gameReady: boolean }) {
     } finally {
       setLoading(false)
     }
-  }, [text, loading, gameReady])
+  }, [text, loading, gameReady, hc])
 
   const handleKeyDown = (e: React.KeyboardEvent) => {
     if (e.key === 'Enter' && !e.shiftKey) {
@@ -115,6 +147,62 @@ function PuaPanel({ gameReady }: { gameReady: boolean }) {
         </div>
       </div>
 
+      {/* 费用提示 */}
+      <div style={{
+        display: 'flex',
+        justifyContent: 'space-between',
+        alignItems: 'center',
+        backgroundColor: '#0a1628',
+        borderRadius: '6px',
+        padding: '6px 8px',
+        border: `1px solid ${insufficient ? '#EF4444' : canAfford ? '#1e3a5f' : '#7F1D1D'}`,
+        transition: 'border-color 0.2s',
+      }}>
+        <span style={{
+          fontFamily: 'VT323, monospace',
+          fontSize: '13px',
+          color: '#64748B',
+        }}>
+          激励费用
+        </span>
+        <div style={{ display: 'flex', alignItems: 'center', gap: '6px' }}>
+          <span style={{
+            fontFamily: "'Press Start 2P', monospace",
+            fontSize: '9px',
+            color: canAfford ? '#A78BFA' : '#EF4444',
+            transition: 'color 0.2s',
+          }}>
+            -{cost} HC
+          </span>
+          {!canAfford && (
+            <span style={{
+              fontFamily: 'VT323, monospace',
+              fontSize: '11px',
+              color: '#EF4444',
+            }}>
+              余额不足
+            </span>
+          )}
+        </div>
+      </div>
+
+      {/* HC 不足闪烁提示 */}
+      {insufficient && (
+        <div style={{
+          backgroundColor: '#7F1D1D',
+          border: '1px solid #EF4444',
+          borderRadius: '6px',
+          padding: '6px 8px',
+          fontFamily: 'VT323, monospace',
+          fontSize: '14px',
+          color: '#FCA5A5',
+          textAlign: 'center',
+          animation: 'none',
+        }}>
+          HC 不足！先去打怪赚钱！
+        </div>
+      )}
+
       {/* 输入框 */}
       <textarea
         ref={textareaRef}
@@ -127,7 +215,7 @@ function PuaPanel({ gameReady }: { gameReady: boolean }) {
         style={{
           width: '100%',
           backgroundColor: '#0F1B2D',
-          border: '1px solid #1e3a5f',
+          border: `1px solid ${canAfford ? '#1e3a5f' : '#7F1D1D'}`,
           borderRadius: '6px',
           color: '#E2E8F0',
           fontFamily: 'VT323, monospace',
@@ -137,29 +225,30 @@ function PuaPanel({ gameReady }: { gameReady: boolean }) {
           outline: 'none',
           lineHeight: 1.4,
           opacity: gameReady ? 1 : 0.5,
+          transition: 'border-color 0.2s',
         }}
       />
 
       {/* 提交按钮 */}
       <button
         onClick={handleSubmit}
-        disabled={loading || !text.trim() || !gameReady}
+        disabled={loading || !text.trim() || !gameReady || !canAfford}
         style={{
           width: '100%',
           padding: '8px',
-          backgroundColor: loading ? '#1e3a5f' : '#7C3AED',
+          backgroundColor: loading ? '#1e3a5f' : canAfford ? '#7C3AED' : '#4C1D95',
           border: 'none',
           borderRadius: '6px',
           color: '#E2E8F0',
           fontFamily: "'Press Start 2P', monospace",
           fontSize: '8px',
-          cursor: loading || !text.trim() || !gameReady ? 'not-allowed' : 'pointer',
+          cursor: loading || !text.trim() || !gameReady || !canAfford ? 'not-allowed' : 'pointer',
-          opacity: !text.trim() || !gameReady ? 0.5 : 1,
+          opacity: !text.trim() || !gameReady || !canAfford ? 0.45 : 1,
           transition: 'all 0.15s',
           letterSpacing: '0.5px',
         }}
       >
-        {loading ? '分析中...' : '发起激励 ▶'}
+        {loading ? '分析中...' : !canAfford ? 'HC不足' : `发起激励 -${cost}HC`}
       </button>
 
       {/* 当前结果 */}
@@ -209,7 +298,8 @@ function PuaPanel({ gameReady }: { gameReady: boolean }) {
             }}>
               {result.desc}
             </div>
-            {/* 效果标签 */}
+            {/* 效果标签 + 花费 */}
+            <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
               <div style={{
                 backgroundColor: `${em.color}22`,
                 border: `1px solid ${em.color}55`,
@@ -218,10 +308,19 @@ function PuaPanel({ gameReady }: { gameReady: boolean }) {
                 fontFamily: 'VT323, monospace',
                 fontSize: '12px',
                 color: em.color,
-              textAlign: 'center',
               }}>
                 {em.label}
               </div>
+              {result.cost && (
+                <span style={{
+                  fontFamily: "'Press Start 2P', monospace",
+                  fontSize: '7px',
+                  color: '#475569',
+                }}>
+                  -{result.cost}HC
+                </span>
+              )}
+            </div>
           </div>
         )
       })()}
@@ -274,14 +373,17 @@ function PuaPanel({ gameReady }: { gameReady: boolean }) {
         fontFamily: 'VT323, monospace',
         fontSize: '11px',
         color: '#334155',
-        lineHeight: 1.4,
+        lineHeight: 1.5,
         marginTop: 'auto',
         borderTop: '1px solid #1e3a5f',
         paddingTop: '8px',
       }}>
+        <span style={{ color: '#475569' }}>费用 = 当前HC × 15%</span><br />
+        <span style={{ color: '#334155' }}>越富越贵，最低20 最高200</span><br />
+        ──────────<br />
         Enter 快速提交<br />
-        1-3分: 废话翻车<br />
+        1-2分: 废话翻车<br />
-        4-6分: 小幅加成<br />
+        4-6分: 攻击+HC<br />
         7-8分: 攻速暴增<br />
         9-10分: 全场狂暴
       </div>
@@ -347,7 +449,8 @@ export default function GamePage() {
       gameRef.current = null
       if (typeof window !== 'undefined') {
         ;['__gameOnHCChange','__gameOnTowerDeselect','__gameSelectTower',
-          '__gameReady','__gameDifficulty','__gamePuaBuff'].forEach(k => {
+          '__gameReady','__gameDifficulty','__gamePuaBuff',
+          '__gameGetHC','__gameSpendHC'].forEach(k => {
           delete (window as any)[k]
         })
       }
@@ -367,7 +470,7 @@ export default function GamePage() {
           style={{ backgroundColor: '#0A1628' }}
         />
         {/* PUA 激励台（右侧） */}
-        <PuaPanel gameReady={gameReady} />
+        <PuaPanel gameReady={gameReady} hc={hc} />
       </div>
 
       {/* 底部塔选择面板 */}

game/GameScene.ts

@@ -124,13 +124,19 @@ export function createGameScene(PhaserLib: typeof Phaser): typeof Phaser.Scene {
         audio.startBGM()
       })
 
-      // 注册 PUA buff 接口供 React 层调用
+      // 注册 PUA buff 接口 + HC 查询/扣除接口供 React 层调用
       if (typeof window !== 'undefined') {
         ;(window as any).__gamePuaBuff = (
           effect: string, score: number, title: string
         ) => {
           this.applyPuaBuff(effect, score, title)
         }
+        // 查询当前 HC
+        ;(window as any).__gameGetHC = () => this.manager.hc
+        // 尝试扣除 HC，成功返回 true，不足返回 false
+        ;(window as any).__gameSpendHC = (amount: number): boolean => {
+          return this.manager.spendHC(amount)
+        }
       }
 
       this.setupInteraction()