diff --git a/tools/render_sample_sheet_v3.py b/tools/render_sample_sheet_v3.py
index b2cd1172..41545ce9 100644
--- a/tools/render_sample_sheet_v3.py
+++ b/tools/render_sample_sheet_v3.py
@@ -560,11 +560,13 @@ def draw_hero_on_board(board, ox, oy, cell, hx, hy, records, digit=None):
     records.append(("hero", hx, hy, fx, fy, digit))
 
 
+FACADE_FRAC = 0.55   # E 格立面占比(v3.2 档位候选:0.55/0.80/1.00 三档对比,用户挑档)
+
 def draw_facade(board, x0, y0, cell):
     """v3.1 高墙立面(用户方案:地面格南邻墙 → 南部承接墙面展示,E 格)。
-    南 45% 画墙身:横层理暗砖+口沿高光顶线(与墙顶分界);程序化示意,终稿=E 瓦片素材(词表扩展)。"""
+    南部画墙身:横层理暗砖+檐口阴线;程序化示意,终稿=E 瓦片素材(词表扩展)。"""
     d = ImageDraw.Draw(board)
-    fy0 = y0 + int(cell * 0.45)              # 立面占南 55%(高墙感档,目检候选)
+    fy0 = y0 + int(cell * (1.0 - FACADE_FRAC))
     # 立面基色=墙顶瓦片实测色(E 与南侧墙顶须读作同一堵墙——采样 center 瓦片顶面区)
     top = WALLS["center"].convert("RGB").crop((4, 4, 28, 14))
     px = list(top.getdata())
@@ -572,7 +574,7 @@ def draw_facade(board, x0, y0, cell):
     face = _gd_darkened(wall_top_rgb, 0.16)  # 北立面=受光面,略暗于顶面 16% 分层
     d.rectangle([x0, fy0, x0 + cell, y0 + cell], fill=face)
     for i in range(3):                       # 横层理(横条纹,禁竖条纹栅栏感——§3.2 高墙条)
-        ly = fy0 + int((i + 1) * (cell - int(cell * 0.45)) / 4.0)
+        ly = fy0 + int((i + 1) * (cell * FACADE_FRAC) / 4.0)
         d.line([(x0 + 2, ly), (x0 + cell - 2, ly)], fill=_gd_darkened(face, 0.30), width=1)
     for i in range(2):                       # 层理错缝竖短线(砖缝)
         for j in range(3):
@@ -588,6 +590,23 @@ def is_facade_cell(gmap, x, y):
     return (0 <= y + 1 < gmap.h) and gmap.grid[y][x] != "W" and gmap.grid[y + 1][x] == "W"
 
 
+def lift_south_lip(tile):
+    """v3.2:南向墙格(南邻地)瓦片底部 ~40% 立面暗条提亮——(56,45,39) 极暗拉低整格观感,
+    用户指「墙顶面应同色」:顶面本同色(147≈145),观感差系暗条过暗。背光面仍暗于顶面,但不死黑。
+    程序化示意,终稿归瓦片重产(§8.5)。"""
+    im = tile.convert("RGB")
+    w, h = im.size
+    y0 = int(h * 0.60)
+    band = im.crop((0, y0, w, h))
+    lut = [min(255, int(i * 1.75 + 18)) for i in range(256)]
+    band = band.point(lut * 3)
+    out = im.copy()
+    out.paste(band, (0, y0))
+    if tile.mode == "RGBA":
+        out.putalpha(tile.split()[3])
+    return out.convert("RGBA")
+
+
 def render_board(gmap, cell, overlays=None, scale_note=""):
     """按方案甲查表拼装渲染样张板。返回 (img, placement, glow_layer)。"""
     wpx, hpx = gmap.w * cell, gmap.h * cell
@@ -604,7 +623,10 @@ def render_board(gmap, cell, overlays=None, scale_note=""):
                 t = WALLS[kind]
                 if flip:
                     t = t.transpose(Image.FLIP_LEFT_RIGHT)
-                board.paste(t.resize((cell, cell), Image.NEAREST), (x * cell, y * cell))
+                t = t.resize((cell, cell), Image.NEAREST)
+                if overlays and not is_wall(gmap, x, y + 1):   # v3.2 南向墙格立面提亮
+                    t = lift_south_lip(t)
+                board.paste(t, (x * cell, y * cell))
                 placement[(x, y)] = (kind, flip)
             else:
                 vi = floor_variant(x, y)