diff --git a/assets/img/nursery-day.jpg b/assets/img/nursery-day.jpg
index a4d1471..9351e24 100644
Binary files a/assets/img/nursery-day.jpg and b/assets/img/nursery-day.jpg differ
diff --git a/assets/img/nursery-night.jpg b/assets/img/nursery-night.jpg
index ea5a1a3..732eb00 100644
Binary files a/assets/img/nursery-night.jpg and b/assets/img/nursery-night.jpg differ
diff --git a/index.html b/index.html
index d95fc0f..3c4a72a 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:26100132 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:26100133 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） -->
@@ -348,7 +348,7 @@
              缝高 300→340、图宽 100%→88%（max 420）、上提 40px：缝滚到屏幕中间时屋顶到草坪整栋都露出来，草坪压在玻璃条下面；标题改「我们的家」。
              位置：2026-10-01 用户要求和消消乐对调 —— 后又和孕期小知识对调 —— 现在在孕期小知识下面、今天的动线上面（原来在今天的动线和书架之间）。北京时间 19:00–6:00 换夜间图（开灯版）。JS 在 app.js nurseryRender()。 -->
         <section class="ny-peek" id="nursery">
-          <div class="nyp-layer" id="nypLayer" aria-hidden="true"><img id="nypImg" src="assets/img/nursery-day.jpg" alt="" decoding="async"></div>
+          <div class="nyp-layer" id="nypLayer" aria-hidden="true"><img id="nypImg" src="assets/img/nursery-day.jpg?v=20261001h" alt="" decoding="async"></div>
           <span class="nyp-chip">往里看看 · 3D 婴儿房</span>
           <div class="nyp-bar">
             <div class="nyp-txt"><b id="nyTitle">我们的家</b><span id="nySub">做孕期任务攒兜豆，一件件布置好</span></div>
diff --git a/js/app.js b/js/app.js
index 68b57cf..ccbc908 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 = '26100132';
+  var VER = '26100133';
   const $ = (s, c) => (c || document).querySelector(s);
   const $$ = (s, c) => Array.from((c || document).querySelectorAll(s));
 
@@ -3153,11 +3153,13 @@
     window.addEventListener('resize', req);
     if ('IntersectionObserver' in window) new IntersectionObserver(req).observe(sec);
     place();
+    /* 封面版本：3D 婴儿房会话换图（文件名不变）时改这里，强制微信 webview 重新拉图 */
+    const NY_COVER_V = '20261001h';
     const tick = () => {
       const h = new Date(Date.now() + 8 * 3600e3).getUTCHours();   // 北京时间
       const night = h >= 19 || h < 6;
       sec.classList.toggle('is-night', night);
-      const img = $('#nypImg'), src = 'assets/img/nursery-' + (night ? 'night' : 'day') + '.jpg';
+      const img = $('#nypImg'), src = 'assets/img/nursery-' + (night ? 'night' : 'day') + '.jpg?v=' + NY_COVER_V;
       if (img.getAttribute('src') !== src) img.setAttribute('src', src);
     };
     tick(); setInterval(tick, 600e3);
diff --git a/mama-box.css b/mama-box.css
index b175071..bf09eb4 100644
--- a/mama-box.css
+++ b/mama-box.css
@@ -604,13 +604,13 @@ a.skip:focus{left:16px;top:16px}
    这一块**故意没有底色、没有圆角卡片**：它是页面上开的缝，里面是铺在整页背后的房间。
    .nyp-layer 的 height / transform 由 JS 按 .screen 可视区每帧写入（见 app.js nurseryInit），这里别再给它写 top/transform。
    ::after = 上下模块压在房间上的阴影，要盖在图层之上、按钮之下。 */
-.ny-peek{position:relative;margin:16px -26px 0;height:340px;overflow:hidden;background:#DCE5EC}
+.ny-peek{position:relative;margin:16px -26px 0;height:340px;overflow:hidden;background:#E6EEF3}
 .nyp-layer{position:absolute;left:0;top:0;width:100%;height:812px;will-change:transform;
-  display:flex;align-items:center;justify-content:center;background:#DCE5EC}
+  display:flex;align-items:center;justify-content:center;background:#E6EEF3}
 .nyp-layer img{display:block;width:88%;max-width:420px;height:auto;margin-top:-40px}
-/* 写实版（2026-10-01g）底部是草地渐隐、不是纯色 → 图左右和下沿各羽化一截，免得草地在图边被齐刷刷切断、露出接缝 */
-.nyp-layer img{-webkit-mask-image:linear-gradient(90deg,transparent,#000 9%,#000 91%,transparent),linear-gradient(#000 82%,transparent);
-  -webkit-mask-composite:source-in;mask-image:linear-gradient(90deg,transparent,#000 9%,#000 91%,transparent),linear-gradient(#000 82%,transparent);mask-composite:intersect}
+/* 2026-10-01h：封面改成满幅远景（天空/远山/田野铺满整张图），不再是「纯色底上一栋房子」→ 图铺满缝宽、不羽化，
+   左右下沿不会再露底色；底色只在图片加载前兜底，取图顶天色 */
+.nyp-layer img{width:100%;max-width:none;margin-top:30px}
 .ny-peek::after{content:"";position:absolute;inset:0;pointer-events:none;z-index:1;
   box-shadow:inset 0 16px 18px -14px rgba(120,70,50,.28),inset 0 -16px 18px -14px rgba(120,70,50,.28)}
 .nyp-chip{position:absolute;left:26px;top:16px;z-index:2;font-size:11px;font-weight:800;color:#E0708A;letter-spacing:.3px;
@@ -628,7 +628,7 @@ a.skip:focus{left:16px;top:16px}
 .nyp-btn:active{transform:scale(.96)}
 @keyframes nypNudge{0%,80%,100%{transform:translateX(0)}86%{transform:translateX(3px)}92%{transform:translateX(0)}}
 /* 夜间：JS 换成开灯版图，底色跟着换成图边的 #2C3350 */
-.ny-peek.is-night,.ny-peek.is-night .nyp-layer{background:#2C3350}
+.ny-peek.is-night,.ny-peek.is-night .nyp-layer{background:#2D3559}
 .ny-peek.is-night .nyp-bar{background:rgba(30,36,60,.78)}
 .ny-peek.is-night .nyp-txt b{color:#FFF3F5}
 .ny-peek.is-night .nyp-txt span{color:#D9C5D0}