diff --git a/crates/op-editor-core/assets/scene_templates/cityguide-film-carousel.op b/crates/op-editor-core/assets/scene_templates/cityguide-film-carousel.op
index 755ebfffb..3b397e96e 100644
--- a/crates/op-editor-core/assets/scene_templates/cityguide-film-carousel.op
+++ b/crates/op-editor-core/assets/scene_templates/cityguide-film-carousel.op
@@ -60,6 +60,7 @@
           "height": 1440,
           "layout": "none",
           "fill": [],
+          "locked": true,
           "children": [
             {
               "type": "rectangle",
@@ -1844,6 +1845,7 @@
               "height": "fill_container",
               "layout": "none",
               "fill": [],
+              "locked": true,
               "children": [
                 {
                   "type": "rectangle",
@@ -1929,6 +1931,7 @@
           "height": 1440,
           "layout": "none",
           "fill": [],
+          "locked": true,
           "children": [
             {
               "type": "rectangle",
@@ -3726,6 +3729,7 @@
               "height": "fill_container",
               "layout": "none",
               "fill": [],
+              "locked": true,
               "children": [
                 {
                   "type": "rectangle",
@@ -3811,6 +3815,7 @@
           "height": 1440,
           "layout": "none",
           "fill": [],
+          "locked": true,
           "children": [
             {
               "type": "rectangle",
@@ -5935,6 +5940,7 @@
               "height": "fill_container",
               "layout": "none",
               "fill": [],
+              "locked": true,
               "children": [
                 {
                   "type": "rectangle",
@@ -6020,6 +6026,7 @@
           "height": 1440,
           "layout": "none",
           "fill": [],
+          "locked": true,
           "children": [
             {
               "type": "rectangle",
@@ -7817,6 +7824,7 @@
               "height": "fill_container",
               "layout": "none",
               "fill": [],
+              "locked": true,
               "children": [
                 {
                   "type": "rectangle",
@@ -7875,8 +7883,8 @@
           ]
         }
       ],
-      "x": 3600,
-      "y": 0
+      "x": 0,
+      "y": 1800
     },
     {
       "type": "frame",
@@ -7902,6 +7910,7 @@
           "height": 1440,
           "layout": "none",
           "fill": [],
+          "locked": true,
           "children": [
             {
               "type": "rectangle",
@@ -9881,6 +9890,7 @@
               "height": "fill_container",
               "layout": "none",
               "fill": [],
+              "locked": true,
               "children": [
                 {
                   "type": "rectangle",
@@ -9939,8 +9949,8 @@
           ]
         }
       ],
-      "x": 4800,
-      "y": 0
+      "x": 1200,
+      "y": 1800
     },
     {
       "type": "frame",
@@ -9966,6 +9976,7 @@
           "height": 1440,
           "layout": "none",
           "fill": [],
+          "locked": true,
           "children": [
             {
               "type": "rectangle",
@@ -11626,6 +11637,7 @@
               "height": "fill_container",
               "layout": "none",
               "fill": [],
+              "locked": true,
               "children": [
                 {
                   "type": "rectangle",
@@ -11684,8 +11696,8 @@
           ]
         }
       ],
-      "x": 6000,
-      "y": 0
+      "x": 2400,
+      "y": 1800
     },
     {
       "type": "frame",
@@ -11711,6 +11723,7 @@
           "height": 1440,
           "layout": "none",
           "fill": [],
+          "locked": true,
           "children": [
             {
               "type": "rectangle",
@@ -13612,6 +13625,7 @@
               "height": "fill_container",
               "layout": "none",
               "fill": [],
+              "locked": true,
               "children": [
                 {
                   "type": "rectangle",
@@ -13670,8 +13684,8 @@
           ]
         }
       ],
-      "x": 7200,
-      "y": 0
+      "x": 0,
+      "y": 3600
     }
   ]
 }
diff --git a/crates/op-editor-core/assets/scene_templates/tutorial-journal-carousel.op b/crates/op-editor-core/assets/scene_templates/tutorial-journal-carousel.op
index 1dd1100bf..119d5b2e9 100644
--- a/crates/op-editor-core/assets/scene_templates/tutorial-journal-carousel.op
+++ b/crates/op-editor-core/assets/scene_templates/tutorial-journal-carousel.op
@@ -59,6 +59,7 @@
           "height": "fill_container",
           "layout": "none",
           "fill": [],
+          "locked": true,
           "children": [
             {
               "type": "path",
@@ -480,6 +481,7 @@
           "height": "fill_container",
           "layout": "none",
           "fill": [],
+          "locked": true,
           "children": [
             {
               "type": "ellipse",
@@ -654,6 +656,7 @@
           "height": "fill_container",
           "layout": "none",
           "fill": [],
+          "locked": true,
           "children": [
             {
               "type": "path",
@@ -1310,6 +1313,7 @@
           "height": "fill_container",
           "layout": "none",
           "fill": [],
+          "locked": true,
           "children": [
             {
               "type": "ellipse",
@@ -1484,6 +1488,7 @@
           "height": "fill_container",
           "layout": "none",
           "fill": [],
+          "locked": true,
           "children": [
             {
               "type": "path",
@@ -2019,6 +2024,7 @@
           "height": "fill_container",
           "layout": "none",
           "fill": [],
+          "locked": true,
           "children": [
             {
               "type": "ellipse",
@@ -2193,6 +2199,7 @@
           "height": "fill_container",
           "layout": "none",
           "fill": [],
+          "locked": true,
           "children": [
             {
               "type": "path",
@@ -2874,6 +2881,7 @@
           "height": "fill_container",
           "layout": "none",
           "fill": [],
+          "locked": true,
           "children": [
             {
               "type": "ellipse",
@@ -3022,8 +3030,8 @@
           ]
         }
       ],
-      "x": 3600,
-      "y": 0
+      "x": 0,
+      "y": 1800
     },
     {
       "type": "frame",
@@ -3048,6 +3056,7 @@
           "height": "fill_container",
           "layout": "none",
           "fill": [],
+          "locked": true,
           "children": [
             {
               "type": "path",
@@ -3474,6 +3483,7 @@
           "height": "fill_container",
           "layout": "none",
           "fill": [],
+          "locked": true,
           "children": [
             {
               "type": "ellipse",
@@ -3622,8 +3632,8 @@
           ]
         }
       ],
-      "x": 4800,
-      "y": 0
+      "x": 1200,
+      "y": 1800
     },
     {
       "type": "frame",
@@ -3648,6 +3658,7 @@
           "height": "fill_container",
           "layout": "none",
           "fill": [],
+          "locked": true,
           "children": [
             {
               "type": "path",
@@ -4258,6 +4269,7 @@
           "height": "fill_container",
           "layout": "none",
           "fill": [],
+          "locked": true,
           "children": [
             {
               "type": "ellipse",
@@ -4406,8 +4418,8 @@
           ]
         }
       ],
-      "x": 6000,
-      "y": 0
+      "x": 2400,
+      "y": 1800
     }
   ]
 }
diff --git a/templates/step0/_generators/tpl_cityguide_carousel.py b/templates/step0/_generators/tpl_cityguide_carousel.py
index 11c476ae2..ef2c7d18e 100644
--- a/templates/step0/_generators/tpl_cityguide_carousel.py
+++ b/templates/step0/_generators/tpl_cityguide_carousel.py
@@ -111,6 +111,13 @@ CJK = "Noto Sans SC"
 NUM = "DM Mono"
 
 W, H, GAP = 1080, 1440, 120
+
+# 3 板一行 —— 与 deck 体系（deckkit.BOARDS_PER_ROW）同一约定：多板模板在画布上
+# 分行铺开，而不是拖成一长排。行间距比列间距多 240 不是手滑：画布在帧上方以
+# **屏幕空间**固定偏移画帧名，缩到能整屏看时 120 文档像素只剩十几个屏幕像素，
+# 第二行的帧名会压到上一行的板上。
+BOARDS_PER_ROW = 3
+ROW_GAP = GAP + 240
 BORDER = 24                   # 相纸白边
 EDGE = 80 - BORDER            # 片窗内的左右内边距，合计仍是 80
 TOP, BOT = 96 - BORDER, 128 - BORDER
@@ -241,7 +248,13 @@ def footer(edge_code):
 
 
 def board(page, name, main, edge_code):
-    """一板。外壳是相纸白，白边之内才是片基 —— 白边是本套的第一识别信号。"""
+    """一板。外壳是相纸白，白边之内才是片基 —— 白边是本套的第一识别信号。
+
+    齿孔层与色偏层都上 `locked`：两者都是铺满整板的壳子，自己一寸不画（墨
+    在里面那 24 个孔 / 两条色带上）。齿孔层还压在正文之上，不锁的话它自身
+    就是一块盖住全板的透明板。locked 让壳子不可选而壳内的孔照常可选
+    （hit_test_walk 的 locked 判定在子节点遍历之后）。
+    """
     content = frame(ids, f"{name} · 内容", width="fill_container",
                     height="fill_container", layout="vertical",
                     padding=[TOP, EDGE, BOT, EDGE], gap=0,
@@ -253,19 +266,20 @@ def board(page, name, main, edge_code):
                  fill=solid("$c-bg"), clipContent=True)
     # 装饰（色偏）最后 —— jian 里 index 0 最上，写反了会盖住正文。
     cast = frame(ids, f"{name} · 色偏", width="fill_container",
-                 height="fill_container", layout="none", fill=[])
+                 height="fill_container", layout="none", fill=[],
+                 locked=True)
     cast["children"] = colour_cast()
     gate["children"] = [content, cast]
 
     shell = frame(ids, f"{page:02d} {name}", width=W, height=H, layout="none",
                   fill=solid("$c-print"), padding=BORDER, clipContent=True)
     holes = frame(ids, f"{name} · 齿孔", width=W, height=H, layout="none",
-                  fill=[])
+                  fill=[], locked=True)
     holes["children"] = sprockets()
     holes["x"], holes["y"] = -BORDER, -BORDER
     shell["children"] = [holes, gate]
-    shell["x"] = (page - 1) * (W + GAP)
-    shell["y"] = 0
+    shell["x"] = ((page - 1) % BOARDS_PER_ROW) * (W + GAP)
+    shell["y"] = ((page - 1) // BOARDS_PER_ROW) * (H + ROW_GAP)
     return shell
 
 
diff --git a/templates/step0/_generators/tpl_tutorial_carousel.py b/templates/step0/_generators/tpl_tutorial_carousel.py
index edaf21a23..312f50d82 100644
--- a/templates/step0/_generators/tpl_tutorial_carousel.py
+++ b/templates/step0/_generators/tpl_tutorial_carousel.py
@@ -102,6 +102,13 @@ CJK = "Noto Sans SC"
 NUM = "Inter"
 
 W, H, GAP = 1080, 1440, 120
+
+# 3 板一行 —— 与 deck 体系（deckkit.BOARDS_PER_ROW）同一约定：多板模板在画布上
+# 分行铺开，而不是拖成一长排。行间距比列间距多 240 不是手滑：画布在帧上方以
+# **屏幕空间**固定偏移画帧名，缩到能整屏看时 120 文档像素只剩十几个屏幕像素，
+# 第二行的帧名会压到上一行的板上。
+BOARDS_PER_ROW = 3
+ROW_GAP = GAP + 240
 EDGE = 80
 RING_GUTTER = 56              # 活页孔占掉的左侧宽度
 TEXT_EDGE = EDGE + RING_GUTTER
@@ -265,6 +272,11 @@ def board(page, name, main, tapes):
     jian 的兄弟顺序是 index 0 最上（canvas_viewport_paint_mask 反着遍历）。
     胶带层用 group：group 不是图片投放目标（image_drop.rs 不匹配 Group），
     所以它盖在整板上也不会截走用户拖进来的图。
+
+    两个装饰层都上 `locked`：它们是 fill_container 的满幅壳子，压在正文之
+    上，但自己一寸也不画（真正的墨在里面那几条胶带 / 六个孔上）。locked 让
+    壳子自身不可选，壳内的胶带和孔照常可选（hit_test_walk 的 locked 判定在
+    子节点遍历之后），于是拖动装饰不会拽走整层，框选也不会一网兜住整板。
     """
     content = frame(ids, f"{name} · 内容", width="fill_container",
                     height="fill_container", layout="vertical",
@@ -273,18 +285,20 @@ def board(page, name, main, tapes):
     content["children"] = [header(page), main, footer()]
 
     tape_layer = group(ids, f"{name} · 胶带", width="fill_container",
-                       height="fill_container", layout="none", fill=[])
+                       height="fill_container", layout="none", fill=[],
+                       locked=True)
     tape_layer["children"] = tapes
 
     holes = frame(ids, f"{name} · 活页孔", width="fill_container",
-                  height="fill_container", layout="none", fill=[])
+                  height="fill_container", layout="none", fill=[],
+                  locked=True)
     holes["children"] = ring_holes()
 
     shell = frame(ids, f"{page:02d} {name}", width=W, height=H, layout="none",
                   fill=solid("$c-bg"), clipContent=True)
     shell["children"] = [tape_layer, content, holes]
-    shell["x"] = (page - 1) * (W + GAP)
-    shell["y"] = 0
+    shell["x"] = ((page - 1) % BOARDS_PER_ROW) * (W + GAP)
+    shell["y"] = ((page - 1) // BOARDS_PER_ROW) * (H + ROW_GAP)
     return shell
 
 
diff --git a/vendor/jian b/vendor/jian
index 453bd70b6..18691c421 160000
--- a/vendor/jian
+++ b/vendor/jian
@@ -1 +1 @@
-Subproject commit 453bd70b646417e58f0d5c9a51594e27d399d849
+Subproject commit 18691c42169f59374d58d13065fc606fa6c39c24