diff --git a/bin/prod/deploy_from_package.sh b/bin/prod/deploy_from_package.sh
index bc855c7..811c5fe 100755
--- a/bin/prod/deploy_from_package.sh
+++ b/bin/prod/deploy_from_package.sh
@@ -56,23 +56,6 @@ require_command() {
     fi
 }
 
-require_port_command() {
-    if command -v ss >/dev/null 2>&1; then
-        return 0
-    fi
-
-    if command -v lsof >/dev/null 2>&1; then
-        return 0
-    fi
-
-    if command -v netstat >/dev/null 2>&1; then
-        return 0
-    fi
-
-    log_error "缺少端口检测命令: ss、lsof 或 netstat"
-    exit 1
-}
-
 find_release_archive() {
     archives=$(find "$SCRIPT_DIR" -maxdepth 1 -type f -name '*.zip' ! -name 'dist.zip')
     count=$(printf '%s\n' "$archives" | sed '/^$/d' | wc -l | tr -d ' ')
@@ -134,106 +117,23 @@ deploy_backend_jar() {
     mv "$source_jar" "$BACKEND_JAR_TARGET"
 }
 
-deploy_frontend_archive() {
+deploy_frontend_dist() {
     source_dist_zip="$1"
     rm -f "$FRONTEND_DIST_ARCHIVE"
+    rm -rf "$FRONTEND_DIST_DIR"
     mv "$source_dist_zip" "$FRONTEND_DIST_ARCHIVE"
-}
+    unzip -oq "$FRONTEND_DIST_ARCHIVE" -d "$FRONTEND_DIR"
 
-resolve_frontend_source_dir() {
-    unzip_dir="$1"
-
-    if [ -f "$unzip_dir/index.html" ]; then
-        printf '%s\n' "$unzip_dir"
-        return 0
-    fi
-
-    if [ -f "$unzip_dir/dist/index.html" ]; then
-        printf '%s\n' "$unzip_dir/dist"
-        return 0
-    fi
-
-    candidate=$(find "$unzip_dir" -type f -name 'index.html' | head -n 1)
-    if [ -z "${candidate:-}" ]; then
-        log_error "dist.zip 解压后未找到 index.html"
+    if [ ! -d "$FRONTEND_DIST_DIR" ]; then
+        log_error "dist.zip 解压后未找到 $FRONTEND_DIST_DIR"
         exit 1
     fi
-
-    dirname "$candidate"
-}
-
-deploy_frontend_dist() {
-    dist_unpack_dir="$WORK_DIR/frontend"
-
-    mkdir -p "$dist_unpack_dir"
-    unzip -oq "$FRONTEND_DIST_ARCHIVE" -d "$dist_unpack_dir"
-
-    rm -rf "$FRONTEND_DIST_DIR"
-    mkdir -p "$FRONTEND_DIST_DIR"
-    cp -a "$(resolve_frontend_source_dir "$dist_unpack_dir")"/. "$FRONTEND_DIST_DIR"/
-}
-
-is_port_listening() {
-    port="$1"
-
-    if command -v ss >/dev/null 2>&1; then
-        ss -lnt 2>/dev/null | grep -q ":$port "
-        return $?
-    fi
-
-    if command -v lsof >/dev/null 2>&1; then
-        lsof -nP -iTCP:"$port" -sTCP:LISTEN >/dev/null 2>&1
-        return $?
-    fi
-
-    netstat -an 2>/dev/null | grep -E "[\\.:]$port[[:space:]].*LISTEN" >/dev/null 2>&1
-}
-
-is_managed_backend_pid() {
-    pid="$1"
-
-    if [ -z "${pid:-}" ] || ! kill -0 "$pid" 2>/dev/null; then
-        return 1
-    fi
-
-    process_line=$(ps -ef | awk -v target_pid="$pid" '$2 == target_pid {print $0}')
-    if [ -z "${process_line:-}" ]; then
-        return 1
-    fi
-
-    case "$process_line" in
-        *"$BACKEND_MARKER"*"$BACKEND_JAR_TARGET"*|*"$BACKEND_JAR_TARGET"*"$BACKEND_MARKER"*)
-            return 0
-            ;;
-    esac
-
-    return 1
 }
 
 collect_backend_pids() {
-    pids=""
-
-    if [ -f "$BACKEND_PID_FILE" ]; then
-        file_pid=$(cat "$BACKEND_PID_FILE" 2>/dev/null || true)
-        if [ -n "${file_pid:-}" ] && is_managed_backend_pid "$file_pid"; then
-            pids="$pids $file_pid"
-        fi
-    fi
-
-    marker_pids=$(
-        ps -ef | awk -v marker="$BACKEND_MARKER" -v jar="$BACKEND_JAR_TARGET" '
-            index($0, marker) > 0 && index($0, jar) > 0 {print $2}
-        '
-    )
-    if [ -n "${marker_pids:-}" ]; then
-        for pid in $marker_pids; do
-            if is_managed_backend_pid "$pid"; then
-                pids="$pids $pid"
-            fi
-        done
-    fi
-
-    printf '%s\n' "$(echo "$pids" | xargs 2>/dev/null || true)"
+    ps -ef | awk -v marker="$BACKEND_MARKER" -v jar="$BACKEND_JAR_TARGET" '
+        index($0, marker) > 0 && index($0, jar) > 0 {print $2}
+    ' | xargs 2>/dev/null || true
 }
 
 stop_backend() {
@@ -310,19 +210,7 @@ start_backend() {
         exit 1
     fi
 
-    wait_seconds=0
-    while [ "$wait_seconds" -lt 30 ]; do
-        if is_port_listening "$BACKEND_PORT"; then
-            log_info "后端已监听端口: $BACKEND_PORT"
-            return 0
-        fi
-
-        sleep 1
-        wait_seconds=$((wait_seconds + 1))
-    done
-
-    log_error "后端未在预期时间内监听端口 $BACKEND_PORT"
-    exit 1
+    log_info "后端已启动，PID: $backend_pid"
 }
 
 main() {
@@ -337,7 +225,6 @@ main() {
     require_command find
     require_command ps
     require_command nohup
-    require_port_command
 
     release_archive=$(find_release_archive)
     WORK_DIR=$(mktemp -d "${TMPDIR:-/tmp}/deploy_from_package.XXXXXX")
@@ -352,8 +239,7 @@ main() {
     backup_frontend_dist
     stop_backend
     deploy_backend_jar "$backend_jar_source"
-    deploy_frontend_archive "$frontend_dist_source"
-    deploy_frontend_dist
+    deploy_frontend_dist "$frontend_dist_source"
     start_backend
 
     log_info "部署完成"
diff --git a/bin/prod/deploy_from_package_test.sh b/bin/prod/deploy_from_package_test.sh
index 63a1371..fc6454f 100755
--- a/bin/prod/deploy_from_package_test.sh
+++ b/bin/prod/deploy_from_package_test.sh
@@ -44,17 +44,7 @@ if [ -z "$port" ]; then
     exit 1
 fi
 
-python3 -m http.server "$port" >/dev/null 2>&1 &
-server_pid=$!
-
-cleanup() {
-    kill "$server_pid" 2>/dev/null || true
-    wait "$server_pid" 2>/dev/null || true
-}
-
-trap cleanup EXIT INT TERM
-
-while kill -0 "$server_pid" 2>/dev/null; do
+while :; do
     sleep 1
 done
 EOF
@@ -151,10 +141,6 @@ test_deploy_success() {
     backend_pid=$(cat "$release_dir/backend/backend.pid")
     kill -0 "$backend_pid" 2>/dev/null || fail "expected backend pid to be running"
 
-    if ! lsof -nP -iTCP:"$backend_port" -sTCP:LISTEN >/dev/null 2>&1; then
-        fail "expected fake backend to listen on $backend_port"
-    fi
-
     trap - EXIT INT TERM
     cleanup_release_dir "$release_dir"
 }
@@ -182,28 +168,6 @@ test_multiple_release_zip_should_fail() {
     cleanup_release_dir "$release_dir"
 }
 
-test_netstat_fallback_should_work() {
-    release_dir=$(mktemp -d)
-    backend_port=$(find_free_port)
-    trap 'cleanup_release_dir "$release_dir"' EXIT INT TERM
-
-    prepare_release_dir "$release_dir" "$backend_port"
-    mkdir -p "$release_dir/fake-port-bin"
-    ln -sf /usr/sbin/netstat "$release_dir/fake-port-bin/netstat"
-
-    (
-        cd "$release_dir"
-        PATH="$release_dir/fake-port-bin:/usr/bin:/bin" ./deploy_from_package.sh
-    )
-
-    assert_file_exists "$release_dir/frontend/dist/index.html"
-    backend_pid=$(cat "$release_dir/backend/backend.pid")
-    kill -0 "$backend_pid" 2>/dev/null || fail "expected backend pid to be running with netstat fallback"
-
-    trap - EXIT INT TERM
-    cleanup_release_dir "$release_dir"
-}
-
 test_should_use_ps_ef_for_process_detection() {
     if rg -n 'pgrep' "$SCRIPT_UNDER_TEST" >/dev/null 2>&1; then
         fail "expected deploy_from_package.sh not to depend on pgrep"
@@ -212,6 +176,10 @@ test_should_use_ps_ef_for_process_detection() {
     if ! rg -n 'ps -ef' "$SCRIPT_UNDER_TEST" >/dev/null 2>&1; then
         fail "expected deploy_from_package.sh to use ps -ef for process detection"
     fi
+
+    if rg -n '\b(ss|lsof|netstat|resolve_frontend_source_dir|is_port_listening)\b' "$SCRIPT_UNDER_TEST" >/dev/null 2>&1; then
+        fail "expected deploy_from_package.sh to remove port detection and unzip compatibility helpers"
+    fi
 }
 
 main() {
@@ -219,7 +187,6 @@ main() {
     test_should_use_ps_ef_for_process_detection
     test_deploy_success
     test_multiple_release_zip_should_fail
-    test_netstat_fallback_should_work
     printf 'PASS: deploy_from_package tests\n'
 }
 
diff --git a/doc/implementation-report-2026-04-01-production-one-click-deploy-simplify.md b/doc/implementation-report-2026-04-01-production-one-click-deploy-simplify.md
new file mode 100644
index 0000000..d3f586e
--- /dev/null
+++ b/doc/implementation-report-2026-04-01-production-one-click-deploy-simplify.md
@@ -0,0 +1,38 @@
+# 生产一键部署脚本简化实施记录
+
+## 修改内容
+- 简化 `bin/prod/deploy_from_package.sh`
+- 删除端口检测逻辑，不再依赖 `ss`、`lsof` 或 `netstat`
+- 删除前端解压兼容逻辑，不再探测多种 `dist.zip` 目录结构
+- 保留并简化进程识别逻辑，直接使用 `ps -ef`
+- 简化 `bin/prod/deploy_from_package_test.sh`
+- 删除端口监听断言和端口检测回退场景
+- 新增脚本文本断言，确认已移除端口检测和解压兼容 helper
+
+## 当前脚本边界
+- 仍然保留以下核心能力：
+  - 脚本同目录唯一发布 zip 校验
+  - 发布包内唯一 `jar` 和唯一 `dist.zip` 校验
+  - 旧版后端 `jar` 时间戳备份
+  - 旧版 `frontend/dist` 时间戳备份
+  - 使用 `ps -ef` 停止旧后端进程
+  - 替换新 `jar`
+  - 将 `dist.zip` 直接解压到 `frontend/`
+  - 启动新的 Java 进程并写入 PID 文件
+
+## 删除的复杂逻辑
+- 不再等待端口监听成功
+- 不再兼容 `ss`、`lsof`、`netstat` 三种端口检测方式
+- 不再兼容 `dist.zip` 根目录、`dist/index.html` 和自动 `find index.html` 多种结构
+- 当前前端解压只接受一种约定：
+  - `dist.zip` 解压到 `frontend/` 后必须得到 `frontend/dist/`
+
+## 验证结果
+- 已执行 `sh -n bin/prod/deploy_from_package.sh`
+- 已执行 `sh bin/prod/deploy_from_package_test.sh`
+- 自测确认：
+  - 脚本使用 `ps -ef`
+  - 脚本中已移除端口检测 helper
+  - 脚本中已移除前端解压兼容 helper
+  - 正常部署链路仍然通过
+  - 多个发布 zip 失败场景仍然通过