diff --git a/mini/pages/wish-tree/wish-tree.js b/mini/pages/wish-tree/wish-tree.js
index 8b53e4f..d45a80c 100644
--- a/mini/pages/wish-tree/wish-tree.js
+++ b/mini/pages/wish-tree/wish-tree.js
@@ -75,6 +75,21 @@ Page({
     this.loadProducts();
   },
 
+  onUnload() {
+    this.stopDanmakuScheduler();
+  },
+
+  onHide() {
+    this.stopDanmakuScheduler();
+  },
+
+  onShow() {
+    // 从后台/下一页返回时，若已有弹幕数据则恢复调度
+    if (this.danmakuRows && this.danmakuRows.length && !(this.danmakuTimers && this.danmakuTimers.length)) {
+      this.startDanmakuScheduler(this.danmakuRows);
+    }
+  },
+
   onPullDownRefresh() {
     const { currentTreeIndex, trees } = this.data;
     const tree = trees[currentTreeIndex];
@@ -224,16 +239,75 @@ Page({
     this.setData({
       [`trees[${index}].hangWishes`]: cache.hangWishes,
       topWishes: cache.top,
-      currentDanmaku: cache.danmaku,
+    });
+    // 启动弹幕调度：每行一条完毕后再出下一条
+    this.startDanmakuScheduler(cache.danmaku);
+  },
+
+  // 启动弹幕调度：每行同一时刻只播一条，前一条飘完再出下一条（循环）
+  startDanmakuScheduler(rows) {
+    this.stopDanmakuScheduler();
+    this.danmakuRows = rows || [];
+    this.danmakuTimers = [];
+
+    if (!this.danmakuRows.length) {
+      this.setData({ currentDanmaku: [] });
+      return;
+    }
+
+    const GAP = 1.5; // 同一行前一条飘完后，间隔再出下一条（秒）
+
+    // 每行独立调度：row 行的第 idx 条播完后，隔 GAP 秒播第 idx+1 条
+    const playRow = (row, idx) => {
+      const rowData = this.danmakuRows[row];
+      if (!rowData) return;
+      const item = rowData.list[idx % rowData.list.length];
+      // 更新该行当前弹幕（用行号作为 key 保证 setData 局部刷新）
+      this.setData({
+        [`currentDanmaku[${row}]`]: {
+          key: `${row}-${idx % rowData.list.length}-${Date.now()}`,
+          id: item.id,
+          content: item.content,
+          author: item.author,
+          type: item.type,
+          top: rowData.top,
+          duration: rowData.duration,
+        },
+      });
+      // 前一条飘完 + 间隔后，播下一条
+      const timer = setTimeout(() => {
+        playRow(row, idx + 1);
+      }, (rowData.duration + GAP) * 1000);
+      this.danmakuTimers[row] = timer;
+    };
+
+    // 初始化 currentDanmaku 数组长度，并启动每行
+    this.setData({ currentDanmaku: new Array(this.danmakuRows.length).fill(null) });
+    this.danmakuRows.forEach((_, row) => {
+      // 各行错开启动，避免 4 行同时从右侧涌出
+      const startTimer = setTimeout(() => playRow(row, 0), row * 1200);
+      this.danmakuTimers.push(startTimer);
     });
   },
 
+  // 停止弹幕调度
+  stopDanmakuScheduler() {
+    if (this.danmakuTimers) {
+      this.danmakuTimers.forEach((t) => clearTimeout(t));
+      this.danmakuTimers = [];
+    }
+  },
+
   // 构建弹幕：共 4 行（行 0-2 树桩处三行，行 3 顶部置顶轮播下方）
-  // 同行统一慢速，按条数均匀错开起始位置，避免互相盖住
+  // 按行分组返回，由 JS 定时器控制：同一行一条完毕后再出下一条，不重叠
   buildDanmaku(list) {
-    const DURATION_BOTTOM = 32; // 树桩处一行飘完全屏的秒数（慢速）
-    const DURATION_TOP = 26;    // 顶部行稍快一点
-    const ROW_TOPS = [64, 71, 78, 16]; // 前三行靠近树桩，第四行在顶部
+    const DURATION_BOTTOM = 30; // 树桩处一条飘完全屏的秒数（慢速）
+    const DURATION_TOP = 24;    // 顶部行稍快一点
+    // 行位置（屏幕百分比）：
+    // - 行3 顶部行紧贴置顶轮播下方（稍有空隙）
+    // - 行0-2 树桩处三行，第一条68%，三行紧凑（间隔5%）
+    const ROW_TOPS = [68, 73, 78, 12];
+    const ROW_DURATIONS = [DURATION_BOTTOM, DURATION_BOTTOM, DURATION_BOTTOM, DURATION_TOP];
 
     // 轮流分配到 4 行
     const rows = [[], [], [], []];
@@ -241,24 +315,17 @@ Page({
       rows[i % 4].push(w);
     });
 
-    const items = [];
-    rows.forEach((rowList, row) => {
-      if (rowList.length === 0) return;
-      const duration = row === 3 ? DURATION_TOP : DURATION_BOTTOM;
-      rowList.forEach((w, idx) => {
-        items.push({
-          id: w.id,
-          content: w.content,
-          author: w.author || '匿名',
-          type: w.type,
-          top: ROW_TOPS[row],
-          duration,
-          // 均匀间隔：同屏内前后错开，不会盖住其他弹幕
-          delay: -(idx * duration / rowList.length),
-        });
-      });
-    });
-    return items;
+    // 每行存该行的所有弹幕（带位置/时长），供定时器轮流播放
+    return rows.map((rowList, row) => ({
+      top: ROW_TOPS[row],
+      duration: ROW_DURATIONS[row],
+      list: rowList.map((w) => ({
+        id: w.id,
+        content: w.content,
+        author: w.author || '匿名',
+        type: w.type,
+      })),
+    })).filter((r) => r.list.length > 0);
   },
 
   // 格式化许愿
@@ -482,4 +549,10 @@ Page({
       path: '/pages/wish-tree/wish-tree',
     };
   },
+
+  onShareTimeline() {
+    return {
+      title: '快来许愿树许下你的愿望吧！'
+    };
+  }
 });
diff --git a/mini/pages/wish-tree/wish-tree.wxml b/mini/pages/wish-tree/wish-tree.wxml
index 07e6092..dcb2cae 100644
--- a/mini/pages/wish-tree/wish-tree.wxml
+++ b/mini/pages/wish-tree/wish-tree.wxml
@@ -45,14 +45,14 @@
     </swiper-item>
   </swiper>
 
-  <!-- 弹幕层（超出50条的心愿缓缓飘过） -->
+  <!-- 弹幕层（超出30条的心愿缓缓飘过，每行一条完毕再出下一条） -->
   <view class="danmaku-layer">
-    <view 
-      wx:for="{{currentDanmaku}}" 
-      wx:key="id"
-      class="danmaku-item {{item.type === 'paid' ? 'paid' : ''}}"
-      style="top: {{item.top}}%; animation-duration: {{item.duration}}s; animation-delay: {{item.delay}}s;"
-    >{{item.content}} · {{item.author}}</view>
+    <block wx:for="{{currentDanmaku}}" wx:key="key" wx:if="{{item}}">
+      <view 
+        class="danmaku-item {{item.type === 'paid' ? 'paid' : ''}}"
+        style="top: {{item.top}}%; animation-duration: {{item.duration}}s;"
+      >{{item.content}} · {{item.author}}</view>
+    </block>
   </view>
 
   <!-- 边缘暗角 -->
diff --git a/mini/pages/wish-tree/wish-tree.wxss b/mini/pages/wish-tree/wish-tree.wxss
index df8360b..4f78071 100644
--- a/mini/pages/wish-tree/wish-tree.wxss
+++ b/mini/pages/wish-tree/wish-tree.wxss
@@ -142,7 +142,8 @@
   text-shadow: 0 2rpx 6rpx rgba(0, 0, 0, 0.6);
   animation-name: danmaku;
   animation-timing-function: linear;
-  animation-iteration-count: infinite;
+  animation-iteration-count: 1;
+  animation-fill-mode: both;
   will-change: transform;
 }
 
@@ -608,7 +609,7 @@
   }
 }
 
-/* 弹幕：从屏幕右侧飘到左侧 */
+/* 弹幕：从屏幕右侧飘到左侧。每条只播一次，由 JS 控制一行一条排队出现。 */
 @keyframes danmaku {
   0% {
     transform: translateX(100vw);