diff --git a/default/regions/cn/packages b/default/regions/cn/packages
new file mode 100644
index 00000000..99eeb5be
--- /dev/null
+++ b/default/regions/cn/packages
@@ -0,0 +1,5 @@
+# Installed from the ISO's offline repository before enabling ArchLinuxCN.
+archlinuxcn-keyring
+# Reuse the base Fcitx5 service and toolkit integration. libime supplies the
+# offline Pinyin dictionary/model through this package's dependencies.
+fcitx5-chinese-addons
diff --git a/default/regions/cn/pacman/mirrorlist.append b/default/regions/cn/pacman/mirrorlist.append
new file mode 100644
index 00000000..d0fe979a
--- /dev/null
+++ b/default/regions/cn/pacman/mirrorlist.append
@@ -0,0 +1 @@
+Server = https://mirrors.ustc.edu.cn/archlinux/$repo/os/$arch
diff --git a/default/regions/cn/pacman/pacman.conf.append b/default/regions/cn/pacman/pacman.conf.append
new file mode 100644
index 00000000..1a0ad22c
--- /dev/null
+++ b/default/regions/cn/pacman/pacman.conf.append
@@ -0,0 +1,2 @@
+[archlinuxcn]
+Server = https://mirrors.ustc.edu.cn/archlinuxcn/$arch
diff --git a/default/regions/cn/skel/.config/fcitx5/config b/default/regions/cn/skel/.config/fcitx5/config
new file mode 100644
index 00000000..d817f382
--- /dev/null
+++ b/default/regions/cn/skel/.config/fcitx5/config
@@ -0,0 +1,14 @@
+[Hotkey]
+EnumerateWithTriggerKeys=False
+# Keep lone Shift and Ctrl+Shift available to applications and CapsLock.
+AltTriggerKeys=
+EnumerateForwardKeys=
+EnumerateBackwardKeys=
+
+[Hotkey/TriggerKeys]
+# Ctrl+Space belongs to tmux/Herdr; CapsLock remains the Compose key.
+0=Alt+space
+
+[Behavior]
+# Start in direct input; Alt+Space activates offline Simplified Chinese Pinyin.
+ActiveByDefault=False
diff --git a/default/regions/cn/skel/.config/fcitx5/profile b/default/regions/cn/skel/.config/fcitx5/profile
new file mode 100644
index 00000000..56ba909a
--- /dev/null
+++ b/default/regions/cn/skel/.config/fcitx5/profile
@@ -0,0 +1,12 @@
+[Groups/0]
+Name=Default
+# Fcitx requires a nonempty group layout. Leave item layouts unset so it uses
+# the compositor's keymap; the base xcb.conf also disables XKB overrides.
+Default Layout=us
+DefaultIM=pinyin
+
+[Groups/0/Items/0]
+Name=keyboard-us
+
+[Groups/0/Items/1]
+Name=pinyin