diff --git a/start.sh b/start.sh
new file mode 100644
index 0000000..b7fe3bb
--- /dev/null
+++ b/start.sh
@@ -0,0 +1,90 @@
+#!/bin/bash
+# 啟動字典 server（背景常駐，區網可用）
+
+PORT=8765
+SERVE_DIR="$(cd "$(dirname "$0")" && pwd)"
+LOG_FILE="/tmp/dict-server-${PORT}.log"
+PID_FILE="/tmp/dict-server-${PORT}.pid"
+
+# 顏色
+BOLD='\033[1m'
+DIM='\033[2m'
+GREEN='\033[32m'
+YELLOW='\033[33m'
+CYAN='\033[36m'
+RESET='\033[0m'
+
+# 取得區網 IP（過濾掉 127.x、docker、virbr 等虛擬介面）
+get_lan_ip() {
+    ip -4 addr show scope global 2>/dev/null \
+        | grep -oP '(?<=inet\s)\d+(\.\d+){3}' \
+        | grep -v '^127\.' \
+        | grep -v '^172\.1[7-9]\.' \
+        | grep -v '^172\.2[0-9]\.' \
+        | grep -v '^172\.3[0-1]\.' \
+        | head -n1
+}
+
+# 印出可點連結（OSC 8）
+print_link() {
+    local url="$1"
+    local label="${2:-$url}"
+    printf '\033]8;;%s\033\\%s\033]8;;\033\\' "$url" "$label"
+}
+
+# 檢查是否已經在跑
+if [ -f "$PID_FILE" ] && kill -0 "$(cat "$PID_FILE")" 2>/dev/null; then
+    OLD_PID=$(cat "$PID_FILE")
+    echo -e "${YELLOW}⚠  server 已經在跑了${RESET}（PID: $OLD_PID）"
+    echo
+else
+    # 檢查 port 有沒有被別人佔用
+    if ss -tln 2>/dev/null | grep -q ":${PORT} " || \
+       netstat -tln 2>/dev/null | grep -q ":${PORT} "; then
+        echo -e "${YELLOW}⚠  port ${PORT} 已被佔用，但不是這個 script 啟動的${RESET}"
+        echo "   先處理掉再執行，例如："
+        echo "   ${DIM}lsof -i :${PORT}${RESET}"
+        exit 1
+    fi
+
+    # 啟動
+    cd "$SERVE_DIR" || exit 1
+    nohup python3 -m http.server "$PORT" --bind 0.0.0.0 \
+        > "$LOG_FILE" 2>&1 &
+    echo $! > "$PID_FILE"
+
+    # 等一下確認真的起來了
+    sleep 0.3
+    if ! kill -0 "$(cat "$PID_FILE")" 2>/dev/null; then
+        echo -e "${YELLOW}✗  啟動失敗，看 log：${RESET} $LOG_FILE"
+        rm -f "$PID_FILE"
+        exit 1
+    fi
+
+    echo -e "${GREEN}✓  server 已啟動${RESET}（PID: $(cat "$PID_FILE")）"
+    echo
+fi
+
+# 顯示資訊
+LAN_IP=$(get_lan_ip)
+LOCAL_URL="http://localhost:${PORT}/"
+
+echo -e "${BOLD}服務目錄${RESET}  ${DIM}${SERVE_DIR}${RESET}"
+echo -e "${BOLD}log${RESET}        ${DIM}${LOG_FILE}${RESET}"
+echo
+echo -e "${BOLD}網址${RESET}"
+printf '  本機       '
+print_link "$LOCAL_URL"
+printf '\n'
+
+if [ -n "$LAN_IP" ]; then
+    LAN_URL="http://${LAN_IP}:${PORT}/"
+    printf '  區網       '
+    print_link "$LAN_URL"
+    printf '\n'
+else
+    echo -e "  ${DIM}（找不到區網 IP）${RESET}"
+fi
+
+echo
+echo -e "${DIM}停止：${RESET} kill \$(cat $PID_FILE)  ${DIM}或${RESET}  pkill -f \"http.server ${PORT}\""