diff --git a/web/abyss/index.html b/web/abyss/index.html
index 79bf1eda..03e5fea2 100644
--- a/web/abyss/index.html
+++ b/web/abyss/index.html
@@ -16,6 +16,8 @@
   <script type="module">
     import { WebAudioEngine } from '../engine/audio.js';
     import { attachGestures } from '../engine/gesture.js';
+    import { Receipts } from '../engine/receipts.js';
+    import { makeCompatPipeline } from '../engine/pipeline.js';
     import { AbyssGame } from './game.js';
 
     async function main() {
@@ -28,7 +30,9 @@
       await audio.showStartOverlay({ cover: 'cover.png' });
       // 走到这里 AudioContext 已解锁，可以出声了
       game.start();
-      attachGestures(root, (g) => game.onGesture(g));
+      // 26 号 P0：兼容输入管道（无声操作回执 + 防连点；游戏手势语义不变）
+      const pipe = makeCompatPipeline({ audio, receipts: new Receipts(audio), game });
+      attachGestures(root, pipe);
     }
 
     main();
diff --git a/web/bridge/index.html b/web/bridge/index.html
index 82b6d834..7d242dbe 100644
--- a/web/bridge/index.html
+++ b/web/bridge/index.html
@@ -14,6 +14,8 @@
   <script type="module">
     import { WebAudioEngine } from '../engine/audio.js';
     import { attachGestures } from '../engine/gesture.js';
+    import { Receipts } from '../engine/receipts.js';
+    import { makeCompatPipeline } from '../engine/pipeline.js';
     import { BridgeGame } from './game.js';
 
     async function main() {
@@ -23,7 +25,9 @@
 
       await audio.showStartOverlay({ cover: 'cover.png' });
       game.start();
-      attachGestures(root, (g) => game.onGesture(g));
+      // 26 号 P0：兼容输入管道（无声操作回执 + 防连点；游戏手势语义不变）
+      const pipe = makeCompatPipeline({ audio, receipts: new Receipts(audio), game });
+      attachGestures(root, pipe);
     }
 
     main();
diff --git a/web/cipher/index.html b/web/cipher/index.html
index 673ab0e4..9ad621e4 100644
--- a/web/cipher/index.html
+++ b/web/cipher/index.html
@@ -16,6 +16,8 @@
   <script type="module">
     import { WebAudioEngine } from '../engine/audio.js';
     import { attachGestures } from '../engine/gesture.js';
+    import { Receipts } from '../engine/receipts.js';
+    import { makeCompatPipeline } from '../engine/pipeline.js';
     import { CipherGame } from './game.js';
 
     async function main() {
@@ -26,7 +28,9 @@
       await audio.showStartOverlay({ cover: 'cover.png' });
       // 走到这里 AudioContext 已解锁，可以出声了
       game.start();
-      attachGestures(root, (g) => game.onGesture(g));
+      // 26 号 P0：兼容输入管道（无声操作回执 + 防连点；游戏手势语义不变）
+      const pipe = makeCompatPipeline({ audio, receipts: new Receipts(audio), game });
+      attachGestures(root, pipe);
     }
 
     main();
diff --git a/web/detective/index.html b/web/detective/index.html
index 9549c163..6ae4c4cd 100644
--- a/web/detective/index.html
+++ b/web/detective/index.html
@@ -18,6 +18,8 @@
   <script type="module">
     import { WebAudioEngine } from '../engine/audio.js';
     import { attachGestures } from '../engine/gesture.js';
+    import { Receipts } from '../engine/receipts.js';
+    import { makeCompatPipeline } from '../engine/pipeline.js';
     import { DetectiveGame } from './game.js';
 
     async function main() {
@@ -27,7 +29,9 @@
 
       await audio.showStartOverlay({ cover: 'cover.png' });
       game.start();
-      attachGestures(root, (g) => game.onGesture(g));
+      // 26 号 P0：兼容输入管道（无声操作回执 + 防连点；游戏手势语义不变）
+      const pipe = makeCompatPipeline({ audio, receipts: new Receipts(audio), game });
+      attachGestures(root, pipe);
     }
 
     main();
diff --git a/web/dungeon/index.html b/web/dungeon/index.html
index d82174d1..31e369f1 100644
--- a/web/dungeon/index.html
+++ b/web/dungeon/index.html
@@ -17,6 +17,8 @@
   <script type="module">
     import { WebAudioEngine } from '../engine/audio.js';
     import { attachGestures } from '../engine/gesture.js';
+    import { Receipts } from '../engine/receipts.js';
+    import { makeCompatPipeline } from '../engine/pipeline.js';
     import { DungeonGame } from './game.js';
 
     async function main() {
@@ -26,7 +28,9 @@
 
       await audio.showStartOverlay({ cover: 'cover.png' });
       game.start();
-      attachGestures(root, (g) => game.onGesture(g));
+      // 26 号 P0：兼容输入管道（无声操作回执 + 防连点；游戏手势语义不变）
+      const pipe = makeCompatPipeline({ audio, receipts: new Receipts(audio), game });
+      attachGestures(root, pipe);
     }
 
     main();
diff --git a/web/engine/audio.js b/web/engine/audio.js
index ec6bc093..ed6d620c 100644
--- a/web/engine/audio.js
+++ b/web/engine/audio.js
@@ -113,6 +113,7 @@ export class WebAudioEngine {
     this._rateBoostEnabled = true; // 长按快进开关（setRateBoostEnabled per-game 控制）
     this._voiceFuseLog = [];     // [{ id, t }] 保险丝调度流水（play 入口记录）
     this._voiceFuseErrored = new Set(); // 已报过 console.error 的 id（每 id 一次）
+    this.playCount = 0;          // play() 累计调用数（输入管道回执启发式探针，26 号 §4.2）
 
     // 设置变更实时生效
     settings.subscribe((_, changed) => this._onSettingsChange(changed));
@@ -239,6 +240,7 @@ export class WebAudioEngine {
   play(id, opts = {}) {
     const slash = id.indexOf('/');
     const layer = slash > 0 ? id.slice(0, slash) : '';
+    this.playCount++; // 管道回执探针：本次手势是否带来任何音频（含资产缺失的尝试调度）
     if (!this.unlocked) {
       console.warn('[WebAudioEngine] 音频尚未解锁（需先 showStartOverlay/unlock），跳过:', id);
       return;
diff --git a/web/engine/floor.js b/web/engine/floor.js
index 346e0cdf..9677dfc1 100644
--- a/web/engine/floor.js
+++ b/web/engine/floor.js
@@ -31,7 +31,8 @@ const BED = {
   f1: 220, f2: 330,          // 两声「嘟—嘟」
   toneMs: 60, gapMs: 180,    // 每声 60ms，两声间隔 180ms
   loopMs: 1400, slowMs: 2500,// 默认每 1.4s 重复；20s 后 2.5s
-  gain: 0.03,                // ≈ guide 提示音增益 0.12 的四分之一
+  gain: 0.055,               // ≈ guide 提示音增益 0.12 的一半（0.03 笔记本外放偏轻，
+                             // 真人首测调高；手机外放仍远轻于语音）
   slowAfterMs: 20000,
   fadeOutMs: 80,             // 玩家一操作，等待声 80ms 内淡出
 };
diff --git a/web/engine/pipeline.js b/web/engine/pipeline.js
index 753c4927..5a5911f0 100644
--- a/web/engine/pipeline.js
+++ b/web/engine/pipeline.js
@@ -122,3 +122,53 @@ export function makeInputPipeline({ floor, confusion, receipts, invalidHints, ga
 }
 
 export default makeInputPipeline;
+
+/**
+ * 兼容管道 —— 未做深度改造的游戏（P0 层，26 号 §5「先把通用部分抽进引擎，推广到
+ * 其他游戏」）。纯增量：游戏内部逻辑、手势语义、双击判定窗口一概不动，只在外围
+ * 补三件事：
+ *
+ * 1. 消灭无声操作（原则 4）：手势后 100ms 内游戏没有调度任何音频 → invalid 回执
+ *    （旧版「点了没反应」是真人测试的头号迷惑源）。
+ * 2. 语音中的手势 → 立即 ok 回执（§4.1 打断即收到）；tap 额外进 400ms 防连点窗口
+ *    （点两下不连跳两句，§4.2）。
+ * 3. longpressend / tapcancel 收尾噪声直通，不吃回执。
+ *
+ * 游戏自带的内容音（脚步、音色、语音）即反馈，不叠回执（§4.2「已有明显内容音可
+ * 省 ok」）。深度改造（发言权/等待点/接管）仍按 26-apply-* 设计单逐款推进。
+ *
+ * @param {{ audio: import('./audio.js').WebAudioEngine,
+ *           receipts: import('./receipts.js').Receipts,
+ *           game: { onGesture: Function } }} deps
+ */
+export function makeCompatPipeline({ audio, receipts, game }) {
+  let lastSkipAt = -Infinity;
+
+  return (g, info) => {
+    if (g === 'longpressend' || g === 'tapcancel') return game.onGesture(g, info);
+
+    const voicePlaying = audio.isVoicePlaying();
+
+    // 防连点：语音中 tap=跳过/继续（各游戏既有语义），400ms 内的第二下只给 busy
+    if (g === 'tap' && voicePlaying && performance.now() - lastSkipAt < 400) {
+      receipts.play('busy');
+      return;
+    }
+
+    const before = audio.playCount;
+    const r = game.onGesture(g, info);
+
+    if (voicePlaying) {
+      // 语音中的任何手势 = 打断/跳过语义：立即 ok（§4.1 打断即收到）
+      receipts.play('ok');
+      if (g === 'tap') lastSkipAt = performance.now();
+      return r;
+    }
+
+    // 100ms 内无任何音频调度 → invalid（消灭无声操作）
+    setTimeout(() => {
+      if (audio.playCount === before) receipts.play('invalid');
+    }, 100);
+    return r;
+  };
+}
diff --git a/web/engine/receipts.js b/web/engine/receipts.js
index 86dd2465..5cbca564 100644
--- a/web/engine/receipts.js
+++ b/web/engine/receipts.js
@@ -18,12 +18,13 @@
 
 /** 合成参数（26 号文档 §4.2 表：合成参数（起步值））。 */
 const SPECS = {
-  // 三角波 1600Hz，35ms，起音 2ms，快速衰减，增益 0.08 —— 清脆的「嗒」
-  ok: { wave: 'triangle', from: 1600, to: 1600, dur: 0.035, attack: 0.002, gain: 0.08 },
-  // 正弦波 260Hz 滑到 200Hz，120ms，起音 10ms，增益 0.10 —— 低沉柔和的「咚」
-  invalid: { wave: 'sine', from: 260, to: 200, dur: 0.12, attack: 0.01, gain: 0.10 },
-  // 正弦波 520Hz，40ms，增益 0.04 —— 很轻的「嗯」
-  busy: { wave: 'sine', from: 520, to: 520, dur: 0.04, attack: 0.005, gain: 0.04 },
+  // 三角波 1600Hz，35ms，起音 2ms，快速衰减 —— 清脆的「嗒」
+  // （增益 0.08→0.11：真人首测反馈笔记本外放偏轻，26 号 §3「参数是起步值，真人测试后再调」）
+  ok: { wave: 'triangle', from: 1600, to: 1600, dur: 0.035, attack: 0.002, gain: 0.11 },
+  // 正弦波 260Hz 滑到 200Hz，120ms，起音 10ms —— 低沉柔和的「咚」（0.10→0.13）
+  invalid: { wave: 'sine', from: 260, to: 200, dur: 0.12, attack: 0.01, gain: 0.13 },
+  // 正弦波 520Hz，40ms —— 很轻的「嗯」（0.04→0.06）
+  busy: { wave: 'sine', from: 520, to: 520, dur: 0.04, attack: 0.005, gain: 0.06 },
 };
 
 export class Receipts {
diff --git a/web/harness/compat-pipeline.test.mjs b/web/harness/compat-pipeline.test.mjs
new file mode 100644
index 00000000..4c20e85e
--- /dev/null
+++ b/web/harness/compat-pipeline.test.mjs
@@ -0,0 +1,183 @@
+/**
+ * compat-pipeline.test.mjs — 兼容输入管道单测（26 号 §4.2 / §5 P0 推广层）。
+ *
+ * 覆盖：
+ * - 手势后游戏有内容音 → 不叠回执（§4.2「已有明显内容音可省 ok」）；
+ * - 手势后 100ms 内无任何音频调度 → invalid 回执（消灭无声操作，原则 4）；
+ * - 语音播放中的手势 → 立即 ok 回执（§4.1 打断即收到）；
+ * - 语音中 tap 的 400ms 防连点（§4.2）；
+ * - longpressend / tapcancel 收尾噪声直通，不吃回执；
+ * - audio.playCount 探针计数。
+ *
+ * 运行：tools/node/bin/node web/harness/compat-pipeline.test.mjs
+ */
+import fs from 'node:fs';
+import path from 'node:path';
+import url from 'node:url';
+
+const GAME_DIR = path.resolve(path.dirname(url.fileURLToPath(import.meta.url)), '..', 'simon');
+
+const realLog = console.log.bind(console);
+let passCount = 0;
+const failures = [];
+function assert(cond, msg) {
+  if (cond) { passCount++; realLog(`  ✓ ${msg}`); }
+  else { failures.push(msg); realLog(`  ✗ ${msg}`); }
+}
+console.error = () => {};
+console.warn = () => {};
+console.log = () => {};
+
+let now = 0;
+let timerSeq = 1;
+const timers = new Map();
+const realSetImmediate = setImmediate;
+globalThis.setTimeout = (cb, ms = 0, ...args) => {
+  const id = timerSeq++;
+  timers.set(id, { fireAt: now + Math.max(0, Number(ms) || 0), cb, args });
+  return id;
+};
+globalThis.clearTimeout = (id) => { timers.delete(id); };
+Object.defineProperty(globalThis, 'performance', { value: { now: () => now }, configurable: true });
+async function flush(rounds = 6) {
+  for (let i = 0; i < rounds; i++) await new Promise((r) => realSetImmediate(r));
+}
+async function advance(cond = null) {
+  for (let n = 0; n < 10000; n++) {
+    await flush(2);
+    if (cond && cond()) return 'cond';
+    let nextId = -1; let nextAt = Infinity;
+    for (const [id, t] of timers) if (t.fireAt < nextAt) { nextAt = t.fireAt; nextId = id; }
+    if (nextId < 0) return 'idle';
+    now = nextAt;
+    const t = timers.get(nextId);
+    timers.delete(nextId);
+    t.cb(...t.args);
+  }
+  throw new Error('虚拟时钟超上限');
+}
+
+globalThis.window = { addEventListener: () => {}, AudioContext: null };
+const storageData = new Map();
+globalThis.localStorage = {
+  getItem: (k) => (storageData.has(k) ? storageData.get(k) : null),
+  setItem: (k, v) => { storageData.set(k, String(v)); },
+  removeItem: (k) => { storageData.delete(k); },
+};
+Object.defineProperty(globalThis, 'navigator', {
+  value: { maxTouchPoints: 1, vibrate: () => true }, configurable: true,
+});
+class MockParam {
+  constructor(v = 1) { this.value = v; }
+  setValueAtTime() {} linearRampToValueAtTime() {} cancelScheduledValues() {}
+}
+class MockGainNode {
+  constructor() { this.gain = new MockParam(); }
+  connect() {} disconnect() {}
+}
+class MockAudioContext {
+  constructor() { this.state = 'running'; this.currentTime = 0; this.destination = {}; }
+  createGain() { return new MockGainNode(); }
+  createDynamicsCompressor() {
+    const n = new MockGainNode();
+    n.threshold = new MockParam(); n.ratio = new MockParam();
+    n.attack = new MockParam(); n.release = new MockParam();
+    return n;
+  }
+  createBufferSource() { return { buffer: null, loop: false, connect() {}, start() {}, stop() {} }; }
+  createScriptProcessor() { return { connect() {}, disconnect() {}, onaudioprocess: null }; }
+  createOscillator() { return { type: 'sine', frequency: new MockParam(440), connect() {}, start() {}, stop() {} }; }
+  decodeAudioData() { return Promise.resolve({ duration: 2.0, numberOfChannels: 1, sampleRate: 44100, getChannelData: () => new Float32Array(16) }); }
+  resume() { this.state = 'running'; return Promise.resolve(); }
+}
+globalThis.window.AudioContext = MockAudioContext;
+globalThis.fetch = async (u) => {
+  const p = path.join(GAME_DIR, decodeURIComponent(String(u)));
+  if (!fs.existsSync(p)) return { ok: false, status: 404, arrayBuffer: async () => new ArrayBuffer(0) };
+  const data = fs.readFileSync(p);
+  return { ok: true, status: 200, arrayBuffer: async () => data.buffer.slice(data.byteOffset, data.byteOffset + data.byteLength) };
+};
+
+const { WebAudioEngine } = await import('../engine/audio.js');
+const { settings } = await import('../engine/settings.js');
+const { makeCompatPipeline } = await import('../engine/pipeline.js');
+const { Receipts } = await import('../engine/receipts.js');
+settings.set({ guide: 'off', voice: 'female', speed: 1.0, bgm: 1.0 });
+
+const audio = new WebAudioEngine('audio/');
+await audio.unlock();
+const receipts = new Receipts(audio);
+const receiptLog = [];
+const origPlay = receipts.play.bind(receipts);
+receipts.play = (kind) => { receiptLog.push({ kind, t: now }); return origPlay(kind); };
+
+// 假游戏：按手势决定是否有内容音
+const fakeGame = {
+  lastGesture: null,
+  loudGestures: new Set(),   // 这些手势会立即播 sfx
+  onGesture(g) {
+    this.lastGesture = g;
+    if (this.loudGestures.has(g)) audio.play('sfx/tone_tap');
+    return undefined; // 旧游戏通常无返回值
+  },
+};
+const pipe = makeCompatPipeline({ audio, receipts, game: fakeGame });
+
+realLog('== 兼容管道（P0 推广层）==');
+{
+  // 1. 内容音即反馈：不叠回执
+  fakeGame.loudGestures.add('left');
+  const n0 = receiptLog.length;
+  pipe('left'); await flush();
+  await advance(() => now >= 150);
+  assert(receiptLog.length === n0, '手势带内容音 → 不叠回执（内容音即反馈）');
+
+  // 2. 无声操作 → 100ms 时给 invalid
+  const n1 = receiptLog.length;
+  pipe('right'); await flush();
+  assert(receiptLog.length === n1, '手势后 100ms 内不抢先出声（等结果）');
+  await advance(() => receiptLog.length > n1);
+  const r = receiptLog[receiptLog.length - 1];
+  assert(r.kind === 'invalid' && r.t <= 100 + 500, `无声手势 → invalid 回执（实际 ${r && r.kind}@${r && r.t}ms）`);
+
+  // 3. playCount 探针
+  const c0 = audio.playCount;
+  audio.play('sfx/tone_tap');
+  assert(audio.playCount === c0 + 1, 'audio.playCount 每次 play 递增（回执启发式探针）');
+
+  // 4. 语音中手势 → 立即 ok
+  audio.play('voice/t0_new'); await flush();
+  assert(audio.isVoicePlaying(), '假游戏对白在播');
+  const n2 = receiptLog.length;
+  pipe('up'); await flush();
+  assert(receiptLog.length === n2 + 1 && receiptLog[receiptLog.length - 1].kind === 'ok',
+    '语音中的手势 → 立即 ok 回执（打断即收到）');
+  await advance(() => !audio.isVoicePlaying());
+
+  // 5. 语音中 tap 防连点：第二下只给 busy
+  audio.play('voice/t0_new'); await flush();
+  const n3 = receiptLog.length;
+  pipe('tap'); await flush();
+  assert(receiptLog[n3] && receiptLog[n3].kind === 'ok', '语音中 tap → ok');
+  pipe('tap'); await flush(); // 虚拟时钟未推进 = 400ms 内
+  assert(receiptLog[n3 + 1] && receiptLog[n3 + 1].kind === 'busy', '400ms 内第二下 tap → busy（不连跳）');
+  now += 500; // 跨过防连点窗口
+  await advance(() => !audio.isVoicePlaying());
+
+  // 6. 收尾噪声直通
+  const n4 = receiptLog.length;
+  let passed = false;
+  fakeGame.loudGestures.delete('left');
+  fakeGame.onGesture = (g) => { if (g === 'longpressend') passed = true; };
+  pipe('longpressend'); await flush();
+  await advance(() => now >= 150);
+  assert(passed && receiptLog.length === n4, 'longpressend 直通游戏、不吃回执');
+}
+
+realLog(`\n通过 ${passCount} 条断言，失败 ${failures.length} 条`);
+if (failures.length > 0) {
+  realLog('失败清单：');
+  for (const f of failures) realLog(`  - ${f}`);
+  process.exit(1);
+}
+realLog('全部断言通过。');
diff --git a/web/hunt/index.html b/web/hunt/index.html
index 9d4d25a2..7e3e3367 100644
--- a/web/hunt/index.html
+++ b/web/hunt/index.html
@@ -24,6 +24,8 @@
   <script type="module">
     import { WebAudioEngine } from '../engine/audio.js';
     import { attachGestures } from '../engine/gesture.js';
+    import { Receipts } from '../engine/receipts.js';
+    import { makeCompatPipeline } from '../engine/pipeline.js';
     import { HuntGame } from './game.js';
 
     async function main() {
@@ -34,7 +36,9 @@
       await audio.showStartOverlay({ cover: 'cover.png' });
       // 走到这里 AudioContext 已解锁，可以出声了
       game.start();
-      attachGestures(root, (g) => game.onGesture(g));
+      // 26 号 P0：兼容输入管道（无声操作回执 + 防连点；游戏手势语义不变）
+      const pipe = makeCompatPipeline({ audio, receipts: new Receipts(audio), game });
+      attachGestures(root, pipe);
     }
 
     main();
diff --git a/web/index.html b/web/index.html
index 6810421c..9fc4d9a1 100644
--- a/web/index.html
+++ b/web/index.html
@@ -271,6 +271,24 @@
   </section>
 
   <main class="grid">
+    <a class="card" href="storyline/" data-game="storyline">
+      <h2>声命线 <span class="badge-new">新交互</span></h2>
+      <span class="slug">STORYLINE</span>
+      <p>末世互动广播剧。单击继续，左右滑做选择，向着妹妹的方向活下去。</p>
+      <p class="progress"></p>
+    </a>
+    <a class="card" href="escape/" data-game="escape">
+      <h2>暗室 <span class="badge-new">新交互</span></h2>
+      <span class="slug">ESCAPE</span>
+      <p>密室逃脱。四向滑动移动，单击检查，按住屏幕问路。</p>
+      <p class="progress"></p>
+    </a>
+    <a class="card" href="simon/" data-game="simon">
+      <h2>音序回响 <span class="badge-new">新交互</span></h2>
+      <span class="slug">SIMON</span>
+      <p>音频记忆游戏。听一串音色，原样复现；新音色随实力解锁。</p>
+      <p class="progress"></p>
+    </a>
     <a class="card" href="hunt/" data-game="hunt">
       <h2>围猎 <span class="badge-new">新作</span></h2>
       <span class="slug">HUNT · NIGHT HUNT</span>
@@ -331,24 +349,6 @@
       <p>盲剑客武侠 RPG。眼盲，耳即眼——听声辨招，双击格挡，踏平黑风寨。</p>
       <p class="progress"></p>
     </a>
-    <a class="card" href="storyline/" data-game="storyline">
-      <h2>声命线</h2>
-      <span class="slug">STORYLINE</span>
-      <p>末世互动广播剧。在声音里做选择，决定故事的走向。</p>
-      <p class="progress"></p>
-    </a>
-    <a class="card" href="escape/" data-game="escape">
-      <h2>暗室</h2>
-      <span class="slug">ESCAPE</span>
-      <p>密室逃脱。一片漆黑中，只靠声音摸索出路。</p>
-      <p class="progress"></p>
-    </a>
-    <a class="card" href="simon/" data-game="simon">
-      <h2>音序回响</h2>
-      <span class="slug">SIMON</span>
-      <p>音频记忆游戏。听一段音序，用手势原样复现。</p>
-      <p class="progress"></p>
-    </a>
     <a class="card" href="rhythm/" data-game="rhythm">
       <h2>节拍行者</h2>
       <span class="slug">RHYTHM</span>
diff --git a/web/keeper/index.html b/web/keeper/index.html
index 2af40ce9..c93fa49e 100644
--- a/web/keeper/index.html
+++ b/web/keeper/index.html
@@ -16,6 +16,8 @@
   <script type="module">
     import { WebAudioEngine } from '../engine/audio.js';
     import { attachGestures } from '../engine/gesture.js';
+    import { Receipts } from '../engine/receipts.js';
+    import { makeCompatPipeline } from '../engine/pipeline.js';
     import { KeeperGame } from './game.js';
 
     async function main() {
@@ -26,7 +28,9 @@
       await audio.showStartOverlay({ cover: 'cover.png' });
       // 走到这里 AudioContext 已解锁，可以出声了
       game.start();
-      attachGestures(root, (g) => game.onGesture(g));
+      // 26 号 P0：兼容输入管道（无声操作回执 + 防连点；游戏手势语义不变）
+      const pipe = makeCompatPipeline({ audio, receipts: new Receipts(audio), game });
+      attachGestures(root, pipe);
     }
 
     main();
diff --git a/web/radio/index.html b/web/radio/index.html
index 76125d3f..1f5858f3 100644
--- a/web/radio/index.html
+++ b/web/radio/index.html
@@ -16,6 +16,8 @@
   <script type="module">
     import { WebAudioEngine } from '../engine/audio.js';
     import { attachGestures } from '../engine/gesture.js';
+    import { Receipts } from '../engine/receipts.js';
+    import { makeCompatPipeline } from '../engine/pipeline.js';
     import { RadioGame } from './game.js';
 
     async function main() {
@@ -26,7 +28,9 @@
       await audio.showStartOverlay({ cover: 'cover.png' });
       // 走到这里 AudioContext 已解锁，可以出声了
       game.start();
-      attachGestures(root, (g) => game.onGesture(g));
+      // 26 号 P0：兼容输入管道（无声操作回执 + 防连点；游戏手势语义不变）
+      const pipe = makeCompatPipeline({ audio, receipts: new Receipts(audio), game });
+      attachGestures(root, pipe);
     }
 
     main();
diff --git a/web/rhythm/index.html b/web/rhythm/index.html
index cbff6607..b04a1591 100644
--- a/web/rhythm/index.html
+++ b/web/rhythm/index.html
@@ -17,6 +17,8 @@
   <script type="module">
     import { WebAudioEngine } from '../engine/audio.js';
     import { attachGestures } from '../engine/gesture.js';
+    import { Receipts } from '../engine/receipts.js';
+    import { makeCompatPipeline } from '../engine/pipeline.js';
     import { RhythmGame } from './game.js';
 
     async function main() {
@@ -31,7 +33,9 @@
       // 双击窗关闭；坐标经引擎第二参 info 传入（24 号鼓手模式坐标透传，
       // docs/web-engine-api.md §gesture）。其他游戏勿开 immediateTap——
       // 每次按下都会先发 tap。
-      attachGestures(root, (g, info) => game.onGesture(g, info), { immediateTap: true });
+      // 26 号 P0：兼容输入管道（无声操作回执 + 防连点；游戏手势语义不变）
+      const pipe = makeCompatPipeline({ audio, receipts: new Receipts(audio), game });
+      attachGestures(root, pipe, { immediateTap: true });
 
       // 切后台 AudioContext 会被系统挂起，回前台时恢复（节拍时钟基于
       // ctx.currentTime，挂起期间时钟也停，回前台后排程自然续上）
diff --git a/web/rpg/index.html b/web/rpg/index.html
index c00d3bd6..644101a4 100644
--- a/web/rpg/index.html
+++ b/web/rpg/index.html
@@ -16,6 +16,8 @@
   <script type="module">
     import { WebAudioEngine } from '../engine/audio.js';
     import { attachGestures } from '../engine/gesture.js';
+    import { Receipts } from '../engine/receipts.js';
+    import { makeCompatPipeline } from '../engine/pipeline.js';
     import { RpgGame } from './game.js';
 
     async function main() {
@@ -26,7 +28,9 @@
       await audio.showStartOverlay({ cover: 'cover.png' });
       // 走到这里 AudioContext 已解锁，可以出声了
       game.start();
-      attachGestures(root, (g) => game.onGesture(g));
+      // 26 号 P0：兼容输入管道（无声操作回执 + 防连点；游戏手势语义不变）
+      const pipe = makeCompatPipeline({ audio, receipts: new Receipts(audio), game });
+      attachGestures(root, pipe);
     }
 
     main();
diff --git a/web/space/index.html b/web/space/index.html
index 795c340b..d0e900b8 100644
--- a/web/space/index.html
+++ b/web/space/index.html
@@ -17,6 +17,8 @@
   <script type="module">
     import { WebAudioEngine } from '../engine/audio.js';
     import { attachGestures } from '../engine/gesture.js';
+    import { Receipts } from '../engine/receipts.js';
+    import { makeCompatPipeline } from '../engine/pipeline.js';
     import { SpaceGame } from './game.js';
 
     async function main() {
@@ -27,7 +29,9 @@
       await audio.showStartOverlay({ cover: 'cover.png' });
       // 走到这里 AudioContext 已解锁，可以出声了
       game.start();
-      attachGestures(root, (g) => game.onGesture(g));
+      // 26 号 P0：兼容输入管道（无声操作回执 + 防连点；游戏手势语义不变）
+      const pipe = makeCompatPipeline({ audio, receipts: new Receipts(audio), game });
+      attachGestures(root, pipe);
     }
 
     main();
diff --git a/web/teahouse/index.html b/web/teahouse/index.html
index 4336e436..3eba91e3 100644
--- a/web/teahouse/index.html
+++ b/web/teahouse/index.html
@@ -16,6 +16,8 @@
   <script type="module">
     import { WebAudioEngine } from '../engine/audio.js';
     import { attachGestures } from '../engine/gesture.js';
+    import { Receipts } from '../engine/receipts.js';
+    import { makeCompatPipeline } from '../engine/pipeline.js';
     import { TeahouseGame } from './game.js';
 
     async function main() {
@@ -26,7 +28,9 @@
       await audio.showStartOverlay({ cover: 'cover.png' });
       // 走到这里 AudioContext 已解锁，可以出声了
       game.start();
-      attachGestures(root, (g) => game.onGesture(g));
+      // 26 号 P0：兼容输入管道（无声操作回执 + 防连点；游戏手势语义不变）
+      const pipe = makeCompatPipeline({ audio, receipts: new Receipts(audio), game });
+      attachGestures(root, pipe);
     }
 
     main();