diff --git a/index.html b/index.html
index 68d270e..92fa9d7 100644
--- a/index.html
+++ b/index.html
@@ -7,7 +7,7 @@
 <meta name="mobile-web-app-capable" content="yes">
 <meta name="apple-mobile-web-app-capable" content="yes">
 <title>兜爸心选 · 孕育陪伴</title>
-<!-- V:26100404 缓存版本标记：改 css/js 时同步 bump 该值（与 js/app.js 的 VER 同源），静态资源按 mtime 走 ETag 自动刷新 -->
+<!-- V:26100405 缓存版本标记：改 css/js 时同步 bump 该值（与 js/app.js 的 VER 同源），静态资源按 mtime 走 ETag 自动刷新 -->
 <link rel="stylesheet" href="mama-box.css">
 <script src="https://res.wx.qq.com/open/js/jweixin-1.6.0.js"></script>
 <!-- 共享助手：授权/跳商城/位置上报（分享卡片同步，见 docs/h5-auth-standard.md 第四节） -->
diff --git a/js/app.js b/js/app.js
index 63bc88e..2c0c39a 100644
--- a/js/app.js
+++ b/js/app.js
@@ -3,7 +3,7 @@
 (function () {
   'use strict';
   /* 页面版本号（YYMMDD+序号）：显示在「关于兜爸心选」页底部；bump 时同步 head 注释与 ?v= */
-  var VER = '26100404';
+  var VER = '26100405';
   const $ = (s, c) => (c || document).querySelector(s);
   const $$ = (s, c) => Array.from((c || document).querySelectorAll(s));
 
diff --git a/js/bump.js b/js/bump.js
index a79106f..7b01f40 100644
--- a/js/bump.js
+++ b/js/bump.js
@@ -409,6 +409,18 @@
     }
     cx.restore();
   }
+  // 脚印：脚跟 / 足弓外沿 / 前掌 / 五个脚趾，单位坐标（脚尖朝 -y），整体缩到鼓包的 0.62
+  const FOOT = [[0, .42, .2], [.1, .12, .15], [-.02, -.18, .24], [-.17, -.5, .1], [-.04, -.57, .08], [.07, -.55, .07], [.16, -.5, .06], [.23, -.41, .055]];
+  function footprint(x, y, rx, ry, ang, k) {
+    if (k < .25) return;
+    const a = (k - .25) / .75, f = .62, dark = [], lite = [];
+    for (const [px, py, r] of FOOT) {
+      // 压痕：中性灰、很淡；左上角错开一点白，像皮肤底下被顶出的浅浅轮廓，而不是画上去的图案
+      dark.push([px * f, py * f, r * f * 1.5, 'rgba(70,62,58,' + (.075 * a).toFixed(3) + ')']);
+      lite.push([px * f - .03, py * f - .04, r * f * 1.2, 'rgba(255,255,255,' + (.12 * a).toFixed(3) + ')']);
+    }
+    blob(x, y, rx, ry, ang, dark.concat(lite));
+  }
   function paint() {
     cx.setTransform(dpr, 0, 0, dpr, 0, 0);
     cx.clearRect(0, 0, cv.width, cv.height);
@@ -417,24 +429,26 @@
     if (H > .1) {
       const P = ft.part, sp = ft.spread.v, k = Math.min(H / 9, 1.3) / sp;
       blob(ft.x + ft.ox + ox, ft.y + ft.oy + oy, P.rx * sp, P.ry * sp, ft.ang + (mode === 'show' ? ft.wob : 0), [
-        [.14, .2, 1.05, 'rgba(160,64,40,' + (.24 * k).toFixed(3) + ')'],
-        [.34, .42, .7, 'rgba(150,55,32,' + (.24 * k).toFixed(3) + ')'],
-        [-.06, -.08, .62, 'rgba(255,196,170,' + (.2 * k).toFixed(3) + ')'],
-        [-.26, -.32, .5, 'rgba(255,250,244,' + (.32 * k).toFixed(3) + ')']
+        // 2026-10-04 用户：「凸起就行，不要变颜色（之前踢完泛浅红）」—— 只留中性灰的背光阴影 + 白高光，不带任何暖色
+        [.16, .22, 1.02, 'rgba(70,62,58,' + (.1 * k).toFixed(3) + ')'],
+        [.34, .42, .66, 'rgba(70,62,58,' + (.08 * k).toFixed(3) + ')'],
+        [-.26, -.32, .55, 'rgba(255,255,255,' + (.38 * k).toFixed(3) + ')']
       ]);
+      // 小脚丫顶上来时，隐隐约约带出一个脚印：极淡、全是软边，峰值时才看得出，凑近看像有像无
+      if (P === PARTS.foot || P === PARTS.kick) footprint(ft.x + ft.ox + ox, ft.y + ft.oy + oy, P.rx * sp, P.ry * sp, ft.ang + (mode === 'show' ? ft.wob : 0), Math.min(H / P.amp, 1));
     }
     const D = pk.d.v;
     if (D < -.2) {
       const k = Math.min(-D / 12, 1.2);
       blob(pk.x + ox, pk.y + oy, 40, 40, 0, [
-        [-.16, -.2, .9, 'rgba(140,55,35,' + (.24 * k).toFixed(3) + ')'],
-        [.32, .36, .55, 'rgba(255,250,244,' + (.45 * k).toFixed(3) + ')']
+        [-.16, -.2, .9, 'rgba(70,62,58,' + (.14 * k).toFixed(3) + ')'],
+        [.32, .36, .55, 'rgba(255,255,255,' + (.45 * k).toFixed(3) + ')']
       ]);
     } else if (D > .2) {
       const k = Math.min(D / 10, 1);
       blob(pk.x + ox, pk.y + oy, 40, 40, 0, [
-        [.14, .2, .95, 'rgba(150,62,38,' + (.08 * k).toFixed(3) + ')'],
-        [-.22, -.28, .65, 'rgba(255,250,244,' + (.3 * k).toFixed(3) + ')']
+        [.14, .2, .95, 'rgba(70,62,58,' + (.06 * k).toFixed(3) + ')'],
+        [-.22, -.28, .65, 'rgba(255,255,255,' + (.3 * k).toFixed(3) + ')']
       ]);
     }
   }