diff --git a/assets/ui/world_text_theme.tres b/assets/ui/world_text_theme.tres
new file mode 100644
index 0000000..3c07470
--- /dev/null
+++ b/assets/ui/world_text_theme.tres
@@ -0,0 +1,7 @@
+[gd_resource type="Theme" load_steps=2 format=3]
+
+[ext_resource type="FontFile" uid="uid://ce7ujbeobblyr" path="res://assets/fonts/msyh.ttc" id="1_font"]
+
+[resource]
+resource_local_to_scene = true
+default_font = ExtResource("1_font")
diff --git a/scenes/Maps/square.tscn b/scenes/Maps/square.tscn
index fd3689a..9a13286 100644
--- a/scenes/Maps/square.tscn
+++ b/scenes/Maps/square.tscn
@@ -1112,11 +1112,12 @@ y_sort_enabled = true
 position = Vector2(646, 3)
 
 [node name="NoticeBoard" parent="." instance=ExtResource("16_rixdf")]
-position = Vector2(-216, -72)
+y_sort_enabled = true
+position = Vector2(-216, -42.7)
 
 [node name="WelcomeBoard" parent="." instance=ExtResource("16_edt5w")]
 y_sort_enabled = true
-position = Vector2(128, -80)
+position = Vector2(128, -35.875)
 script = ExtResource("16_u1t8b")
 
 [node name="Boundaries" type="Node2D" parent="."]
diff --git a/scenes/prefabs/items/notice_board.tscn b/scenes/prefabs/items/notice_board.tscn
index 3f03262..790d85a 100644
--- a/scenes/prefabs/items/notice_board.tscn
+++ b/scenes/prefabs/items/notice_board.tscn
@@ -1,20 +1,35 @@
-[gd_scene load_steps=4 format=3 uid="uid://rdmrm7j4iokr"]
+[gd_scene load_steps=6 format=3 uid="uid://rdmrm7j4iokr"]
 
-[ext_resource type="Script" uid="uid://pnlgf420wktn" path="res://scenes/prefabs/items/NoticeBoard.gd" id="1_script"]
+[ext_resource type="Script" uid="uid://cia2i6wew103b" path="res://scenes/prefabs/items/NoticeBoard.gd" id="1_script"]
 [ext_resource type="Texture2D" uid="uid://b4aildrnhbpl4" path="res://assets/materials/NoticeBoard.png" id="2_sprite"]
 
-[sub_resource type="RectangleShape2D" id="RectangleShape2D_nb"]
-size = Vector2(160, 40)
+[sub_resource type="RectangleShape2D" id="RectangleShape2D_left_post"]
+size = Vector2(14, 16)
+
+[sub_resource type="RectangleShape2D" id="RectangleShape2D_right_post"]
+size = Vector2(14, 16)
+
+[sub_resource type="RectangleShape2D" id="RectangleShape2D_center_bar"]
+size = Vector2(125, 4.666666)
 
 [node name="NoticeBoard" type="StaticBody2D"]
+z_index = 1
 scale = Vector2(0.6, 0.6)
 script = ExtResource("1_script")
 
 [node name="Sprite2D" type="Sprite2D" parent="."]
-position = Vector2(0, -16)
+position = Vector2(0, -45.3)
 scale = Vector2(0.5, 0.5)
 texture = ExtResource("2_sprite")
 
-[node name="CollisionShape2D" type="CollisionShape2D" parent="."]
-position = Vector2(0, 6.6666665)
-shape = SubResource("RectangleShape2D_nb")
+[node name="LeftPostCollision" type="CollisionShape2D" parent="."]
+position = Vector2(-75, 10)
+shape = SubResource("RectangleShape2D_left_post")
+
+[node name="RightPostCollision" type="CollisionShape2D" parent="."]
+position = Vector2(73.33333, 6.666667)
+shape = SubResource("RectangleShape2D_right_post")
+
+[node name="CenterBottomCollision" type="CollisionShape2D" parent="."]
+position = Vector2(-2.5, -2.6666667)
+shape = SubResource("RectangleShape2D_center_bar")
diff --git a/scenes/prefabs/items/welcome_board.tscn b/scenes/prefabs/items/welcome_board.tscn
index fcdf14a..4c41ac4 100644
--- a/scenes/prefabs/items/welcome_board.tscn
+++ b/scenes/prefabs/items/welcome_board.tscn
@@ -1,17 +1,33 @@
-[gd_scene load_steps=3 format=3 uid="uid://c7k8yay002w4"]
+[gd_scene load_steps=5 format=3 uid="uid://c7k8yay002w4"]
 
 [ext_resource type="Texture2D" uid="uid://v7loa3smfkrd" path="res://assets/materials/WelcomeBoard.png" id="2_sprite"]
 
-[sub_resource type="RectangleShape2D" id="RectangleShape2D_board"]
-size = Vector2(112, 18.5)
+[sub_resource type="RectangleShape2D" id="RectangleShape2D_left_post"]
+size = Vector2(16, 20)
+
+[sub_resource type="RectangleShape2D" id="RectangleShape2D_right_post"]
+size = Vector2(16, 20)
+
+[sub_resource type="RectangleShape2D" id="RectangleShape2D_center_bar"]
+size = Vector2(76, 4)
 
 [node name="WelcomeBoard" type="StaticBody2D"]
+z_index = 1
 collision_layer = 3
 
 [node name="Sprite2D" type="Sprite2D" parent="."]
+position = Vector2(0, -44.125)
 scale = Vector2(0.25, 0.25)
 texture = ExtResource("2_sprite")
 
-[node name="CollisionShape2D" type="CollisionShape2D" parent="."]
-position = Vector2(0, 14.75)
-shape = SubResource("RectangleShape2D_board")
+[node name="LeftPostCollision" type="CollisionShape2D" parent="."]
+position = Vector2(-49, -10)
+shape = SubResource("RectangleShape2D_left_post")
+
+[node name="RightPostCollision" type="CollisionShape2D" parent="."]
+position = Vector2(47, -10)
+shape = SubResource("RectangleShape2D_right_post")
+
+[node name="CenterBottomCollision" type="CollisionShape2D" parent="."]
+position = Vector2(-1, -22)
+shape = SubResource("RectangleShape2D_center_bar")
diff --git a/scenes/ui/ChatBubble.tscn b/scenes/ui/ChatBubble.tscn
index 13b13fc..8c06ff8 100644
--- a/scenes/ui/ChatBubble.tscn
+++ b/scenes/ui/ChatBubble.tscn
@@ -1,6 +1,7 @@
-[gd_scene load_steps=3 format=3]
+[gd_scene load_steps=4 format=3]
 
 [ext_resource type="Script" uid="uid://b4aorojcbwkmb" path="res://scenes/ui/ChatBubble.gd" id="1_script"]
+[ext_resource type="Theme" path="res://assets/ui/world_text_theme.tres" id="2_theme"]
 
 [sub_resource type="StyleBoxFlat" id="StyleBoxFlat_bubble_modern"]
 bg_color = Color(1, 1, 1, 0.9)
@@ -8,6 +9,10 @@ corner_radius_top_left = 5
 corner_radius_top_right = 5
 corner_radius_bottom_right = 5
 corner_radius_bottom_left = 5
+content_margin_left = 10.0
+content_margin_top = 6.0
+content_margin_right = 10.0
+content_margin_bottom = 6.0
 shadow_color = Color(0, 0, 0, 0.2)
 shadow_size = 2
 
@@ -15,6 +20,7 @@ shadow_size = 2
 layout_mode = 3
 anchors_preset = 0
 script = ExtResource("1_script")
+theme = ExtResource("2_theme")
 
 [node name="PanelContainer" type="PanelContainer" parent="."]
 layout_mode = 1
@@ -23,10 +29,10 @@ anchor_left = 0.5
 anchor_top = 1.0
 anchor_right = 0.5
 anchor_bottom = 1.0
-offset_left = -75.0
-offset_top = -60.0
-offset_right = 75.0
-offset_bottom = -20.0
+offset_left = -120.0
+offset_top = -86.0
+offset_right = 120.0
+offset_bottom = -26.0
 grow_horizontal = 2
 grow_vertical = 0
 theme_override_styles/panel = SubResource("StyleBoxFlat_bubble_modern")
@@ -34,9 +40,9 @@ theme_override_styles/panel = SubResource("StyleBoxFlat_bubble_modern")
 [node name="Label" type="Label" parent="PanelContainer"]
 layout_mode = 2
 theme_override_colors/font_color = Color(0.1, 0.1, 0.1, 1)
-theme_override_font_sizes/font_size = 8
+theme_override_font_sizes/font_size = 12
 text = "..."
 horizontal_alignment = 1
 vertical_alignment = 1
 autowrap_mode = 3
-custom_minimum_size = Vector2(150, 0)
+custom_minimum_size = Vector2(220, 0)
diff --git a/scenes/ui/notice_dialog.tscn b/scenes/ui/notice_dialog.tscn
index 3acdff8..872441b 100644
--- a/scenes/ui/notice_dialog.tscn
+++ b/scenes/ui/notice_dialog.tscn
@@ -1,6 +1,7 @@
-[gd_scene load_steps=3 format=3 uid="uid://rdmro1jxs6ga"]
+[gd_scene load_steps=4 format=3 uid="uid://rdmro1jxs6ga"]
 
-[ext_resource type="Script" uid="uid://c227m0okmjt2t" path="res://scenes/ui/NoticeDialog.gd" id="1_script"]
+[ext_resource type="Script" uid="uid://c5iq3s1myvl83" path="res://scenes/ui/NoticeDialog.gd" id="1_script"]
+[ext_resource type="Theme" path="res://assets/ui/world_text_theme.tres" id="2_theme"]
 
 [sub_resource type="StyleBoxFlat" id="StyleBoxFlat_rounded"]
 bg_color = Color(0.95, 0.95, 0.95, 1)
@@ -33,6 +34,7 @@ grow_vertical = 2
 [node name="PanelContainer" type="PanelContainer" parent="CenterContainer"]
 custom_minimum_size = Vector2(480, 420)
 layout_mode = 2
+theme = ExtResource("2_theme")
 theme_override_styles/panel = SubResource("StyleBoxFlat_rounded")
 
 [node name="VBoxContainer" type="VBoxContainer" parent="CenterContainer/PanelContainer"]
@@ -96,13 +98,13 @@ vertical_alignment = 1
 [node name="TextPanel" type="MarginContainer" parent="CenterContainer/PanelContainer/VBoxContainer/ContentContainer"]
 layout_mode = 2
 size_flags_vertical = 3
-theme_override_constants/margin_left = 16
-theme_override_constants/margin_right = 16
+theme_override_constants/margin_left = 20
+theme_override_constants/margin_right = 20
 
 [node name="ContentLabel" type="RichTextLabel" parent="CenterContainer/PanelContainer/VBoxContainer/ContentContainer/TextPanel"]
 layout_mode = 2
 theme_override_colors/default_color = Color(0.3, 0.3, 0.3, 1)
-theme_override_font_sizes/normal_font_size = 16
+theme_override_font_sizes/normal_font_size = 17
 bbcode_enabled = true
 text = "Announcement Content..."
 
diff --git a/scenes/ui/welcome_dialog.tscn b/scenes/ui/welcome_dialog.tscn
index 0ce8033..4fb3e38 100644
--- a/scenes/ui/welcome_dialog.tscn
+++ b/scenes/ui/welcome_dialog.tscn
@@ -1,7 +1,8 @@
-[gd_scene load_steps=5 format=3 uid="uid://d8mam0n1a3b5"]
+[gd_scene load_steps=6 format=3 uid="uid://d8mam0n1a3b5"]
 
-[ext_resource type="Script" uid="uid://cohijfo0yeo34" path="res://scenes/prefabs/ui/WelcomeDialog.gd" id="1_vs5b1"]
+[ext_resource type="Script" uid="uid://b1x23718wrl85" path="res://scenes/ui/WelcomeDialog.gd" id="1_vs5b1"]
 [ext_resource type="Texture2D" uid="uid://v7loa3smfkrd" path="res://assets/materials/WelcomeBoard.png" id="2_dy5hw"]
+[ext_resource type="Theme" path="res://assets/ui/world_text_theme.tres" id="3_theme"]
 
 [sub_resource type="StyleBoxFlat" id="StyleBoxFlat_card"]
 bg_color = Color(1, 1, 1, 1)
@@ -44,6 +45,7 @@ grow_vertical = 2
 [node name="PanelContainer" type="PanelContainer" parent="CenterContainer"]
 custom_minimum_size = Vector2(400, 350)
 layout_mode = 2
+theme = ExtResource("3_theme")
 theme_override_styles/panel = SubResource("StyleBoxFlat_card")
 
 [node name="VBoxContainer" type="VBoxContainer" parent="CenterContainer/PanelContainer"]
@@ -90,7 +92,7 @@ stretch_mode = 5
 [node name="BodyText" type="Label" parent="CenterContainer/PanelContainer/VBoxContainer"]
 layout_mode = 2
 theme_override_colors/font_color = Color(0.3, 0.3, 0.3, 1)
-theme_override_font_sizes/font_size = 14
+theme_override_font_sizes/font_size = 16
 text = "连接·共生·见证
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