diff --git a/tools/render_sample_sheet_v3.py b/tools/render_sample_sheet_v3.py
index 41545ce9..04355bfc 100644
--- a/tools/render_sample_sheet_v3.py
+++ b/tools/render_sample_sheet_v3.py
@@ -563,26 +563,18 @@ def draw_hero_on_board(board, ox, oy, cell, hx, hy, records, digit=None):
 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)。"""
+    """v3.3 E 格墙面(用户方案:地面格南邻墙 → 南部承接墙面展示)。
+    墙面=墙顶同款岩块材质(center 瓦片纹理直接贴,明度 ×0.85 表达垂直面),禁平涂新颜色:
+    北端=墙脚阴线(与地面交界),南端=檐口亮棱(与墙顶交界,受光棱线)。"""
     d = ImageDraw.Draw(board)
     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())
-    wall_top_rgb = tuple(sum(c[i] for c in px) // len(px) for i in range(3))
-    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 * 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):
-            vx = x0 + 6 + j * 14 + (i * 7)
-            vy0 = fy0 + 5 + i * 11
-            d.line([(vx, vy0), (vx, vy0 + 7)], fill=_gd_darkened(face, 0.34), width=1)
-    d.rectangle([x0, fy0, x0 + cell, fy0 + 1], fill=_gd_darkened(wall_top_rgb, 0.35))   # 口沿(地面与立面交界=檐口阴线)
-    d.rectangle([x0, y0 + cell - 1, x0 + cell, y0 + cell], fill=_gd_darkened(face, 0.30))  # 底缘收头 1px(接墙顶北缘亮棱)
+    wall_top = WALLS["center"].resize((cell, cell), Image.NEAREST)
+    face = wall_top.crop((0, 0, cell, cell - fy0 + y0))
+    face = face.point([min(255, int(i * 0.85)) for i in range(256)] * 3)
+    board.paste(face, (x0, fy0))
+    d.rectangle([x0, fy0, x0 + cell, fy0 + 1], fill=(52, 42, 32))              # 墙脚阴线(地面/墙面交界)
+    d.rectangle([x0, y0 + cell - 3, x0 + cell, y0 + cell - 1],
+                fill=(232, 205, 158))                                          # 檐口亮棱(墙面/墙顶交界,受光)
 
 
 def is_facade_cell(gmap, x, y):
@@ -591,17 +583,17 @@ def is_facade_cell(gmap, x, y):
 
 
 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)。"""
+    """v3.3:南向墙格(南邻地)底部暗条改为顶面同款材质轻微暗档(×0.80)——
+    同一堵墙的顶面材质全板一致,南向厚度面只差明度,不再两截皮。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)
+    top_ref = im.crop((0, 0, w, y0))                     # 顶面区材质
+    band_h = h - y0
+    ref = top_ref.resize((w, band_h))                    # 顶面纹理拉伸到暗条区(同材质)
+    ref = ref.point([min(255, int(i * 0.80)) for i in range(256)] * 3)
     out = im.copy()
-    out.paste(band, (0, y0))
+    out.paste(ref, (0, y0))
     if tile.mode == "RGBA":
         out.putalpha(tile.split()[3])
     return out.convert("RGBA")