diff --git a/SYSTEM_SETTINGS.md b/SYSTEM_SETTINGS.md
index 7858f74..7436e07 100644
--- a/SYSTEM_SETTINGS.md
+++ b/SYSTEM_SETTINGS.md
@@ -67,6 +67,16 @@
 | | `system.pin_lock_until` | int（epoch 秒） | 0 | 错 PIN 锁定截止戳。**持久化到 settings**（防 launcher 重启清零；面板进程内存方案重启失效，此处落盘）；截止前锁屏页禁输入并倒计 |
 | | `system.pin_fails` | int | 0 | 连续错 PIN 计数（0-4；达 5 触发锁定并清零）。持久化防「关机重启重试」 |
 
+> **锁屏行为（2026-09-02 用户定案，实现权威见 `lock_screen.c`/`lock_screen_ui.c`/`lock_settings.c`）**：
+> - **触发**：息屏唤醒后（默认开，`system.pin_lock_on_wake` 可关）+ 电源菜单「锁定」主动锁；**开机不锁**。
+> - **主动锁**（电源菜单「锁定」）：立即熄屏 + 写 `/tmp/meow_pin_locked`（主动锁标志，重启消失）→
+>   无论 `system.pin_lock_on_wake` 是否开，唤醒必走锁屏；解锁（PIN 或绕过）时清除。同时 `rm /tmp/meow_pin_unlock_once` 作废挂起的绕过。
+> - **面板一次性解锁恢复口**：`/tmp/meow_pin_unlock_once`（tmpfs 标志，panel 端点创建）存在即被锁屏页**消费删除并放行进入系统一次**
+>   （不校验 PIN、不清除 `system.pin` 本身、不重置失败计数；重启标志自然消失）。launcher 只做检查/消费侧。
+> - **系统设置「安全 → 锁屏 PIN」页**：状态（未设置/已设置/锁定中+剩余）/ 设置（4 位双输确认）/
+>   修改（需旧 PIN 一次）/ 清除（**免旧 PIN**，物理持机即授权，仅二次确认弹窗）/ `system.pin_lock_on_wake` 开关。
+> - **清除兜底**：SSH root 删 `system.pin` 键即解锁；`lck_pin_clear()` 同义（settings API）。
+
 > **字体尺寸标记（M2.5x，随「加载大字库」一起落地）**：字体/主题选择器**每个字体选项标注库大小标记**，如 `MiSans Regular（common≈4k）` / `gbk≈20k` / `full`，直观标注码位/体积量级，让用户知道所选字库大小（M2.6 含字重：`<name> <Weight>（<marker>）`）。对应 `MeowOS/fonts/<family>/<weight>/font.json` 的 `charset`（`common|gbk|full`）+ `glyph_count`；档位枚举 `MEOW_FONT_TIER_COMMON`(默认/≈4k)/`GBK`(大/≈20k)/`FULL`(全/可选)；`gen_font.py --charset common|gbk|full [--weight <name>]` 按档生成。定案见 MEOWOS_SPEC_REF §5.2「字体档位/大字库」与 §5.7.8 [源:用户 2026-08-30]。
 
 > 新增设置项时：在清单加一行 + 存储 schema + API 常量/枚举 + 实体 UI 控件 + web 面板控件（四端同步）。
diff --git a/patch_v2/meow_launcherd/app_launcher.c b/patch_v2/meow_launcherd/app_launcher.c
index e81fb75..53b1d07 100644
--- a/patch_v2/meow_launcherd/app_launcher.c
+++ b/patch_v2/meow_launcherd/app_launcher.c
@@ -1957,7 +1957,7 @@ static int launch_app_chain(struct app *a, const char *chain)
                     meow_auto_slept = 0;
                     fb_pan_buf0_force();
                     /* M2.x 锁屏：App 前台唤醒后若需锁屏 → SIGSTOP 叠加锁屏页；解锁/SIGCONT 回应用 */
-                    if (lck_lock_required(1)) run_app_lock_overlay(a, pid);
+                    if (lck_wake_should_lock()) run_app_lock_overlay(a, pid);
                 }
             }
             if (screen_off_timeout > 0 && meow_screen_on && !meow_auto_slept && !fg_keep_awake()) {
@@ -1981,7 +1981,7 @@ static int launch_app_chain(struct app *a, const char *chain)
                 meow_auto_slept = 0;
                 fb_pan_buf0_force();
                 /* M2.x 锁屏：App 前台唤醒后若需锁屏 → SIGSTOP 叠加锁屏页；解锁/SIGCONT 回应用 */
-                if (lck_lock_required(1)) run_app_lock_overlay(a, pid);
+                if (lck_wake_should_lock()) run_app_lock_overlay(a, pid);
             }
         }
         if (vold && !app_prev_vold) {
diff --git a/patch_v2/meow_launcherd/build_launcher.sh b/patch_v2/meow_launcherd/build_launcher.sh
index dcf8e5f..94a0001 100755
--- a/patch_v2/meow_launcherd/build_launcher.sh
+++ b/patch_v2/meow_launcherd/build_launcher.sh
@@ -28,7 +28,7 @@ SYSROOT="$ROOT/.tools/mipsel-linux-muslsf-cross/mipsel-linux-muslsf"
     subpage.c wifi_page.c bt_page.c netmgr_ipc.c now_playing.c \
     font_theme.c keys.c util.c meow_dep.c \
     meow_touch.c meow_settings.c meow_notif.c meow_media.c meow_bgplay.c \
-    meow_ams_start.c lock_screen.c lock_screen_ui.c \
+    meow_ams_start.c lock_screen.c lock_screen_ui.c lock_settings.c \
     "../sdk/meow_ui.a" "$SYSROOT/lib/libz.a" -lpthread -o meow_launcherd
 echo "== meow_launcherd =="
 ls -la meow_launcherd
diff --git a/patch_v2/meow_launcherd/lock_screen.c b/patch_v2/meow_launcherd/lock_screen.c
index e4eb6c0..9f47a32 100644
--- a/patch_v2/meow_launcherd/lock_screen.c
+++ b/patch_v2/meow_launcherd/lock_screen.c
@@ -351,3 +351,39 @@ time_t lck_lock_remaining(void)
     }
     return 0;
 }
+
+/* ---- 面板一次性解锁恢复口（tmpfs 标志）---- */
+int lck_unlock_once_consume(void)
+{
+    if (access(LCK_UNLOCK_ONCE_FILE, F_OK) != 0) return 0;   /* 不存在：不影响 */
+    unlink(LCK_UNLOCK_ONCE_FILE);
+    LCK_LOG("unlock-once: bypass file present -> consume + release once\n");
+    return 1;
+}
+
+int lck_manual_lock_set(void)
+{
+    int fd = open(LCK_MANUAL_LOCK_FILE, O_WRONLY | O_CREAT | O_TRUNC, 0644);
+    if (fd < 0) { LCK_LOG("manual-lock: open %s fail\n", LCK_MANUAL_LOCK_FILE); return MEOW_ERR_IO; }
+    write(fd, "1", 1); close(fd);
+    LCK_LOG("manual-lock: set %s\n", LCK_MANUAL_LOCK_FILE);
+    return MEOW_OK;
+}
+
+void lck_manual_lock_clear(void)
+{
+    if (access(LCK_MANUAL_LOCK_FILE, F_OK) == 0) {
+        unlink(LCK_MANUAL_LOCK_FILE);
+        LCK_LOG("manual-lock: cleared\n");
+    }
+}
+
+int lck_wake_should_lock(void)
+{
+    if (!lck_pin_configured()) return 0;
+    int wake = 1;
+    if (meow_settings_get_int(LCK_KEY_WAKE, &wake) != 0) wake = 1;
+    if (wake) return 1;
+    /* 唤醒锁已关，但存在「主动锁」标志（电源菜单「锁定」）→ 仍必锁屏 */
+    return access(LCK_MANUAL_LOCK_FILE, F_OK) == 0;
+}
diff --git a/patch_v2/meow_launcherd/lock_screen.h b/patch_v2/meow_launcherd/lock_screen.h
index 4111f21..0a52230 100644
--- a/patch_v2/meow_launcherd/lock_screen.h
+++ b/patch_v2/meow_launcherd/lock_screen.h
@@ -38,6 +38,10 @@ extern "C" {
 #define LCK_KEY_FAILS       "system.pin_fails"
 #define LCK_KEY_PANEL_PIN   "panel.pin"     /* 面板 PIN（read-only 兼容源） */
 
+/* ---- 文件标志（tmpfs，重启自然消失）---- */
+#define LCK_UNLOCK_ONCE_FILE "/tmp/meow_pin_unlock_once"  /* 面板一次性解锁恢复口：存在即消费放行 */
+#define LCK_MANUAL_LOCK_FILE "/tmp/meow_pin_locked"       /* 电源菜单「锁定」主动锁标志：唤醒必锁屏 */
+
 /* PIN 合法：恰好 4 位数字（0-9）。NULL/长度不符/含非数字 → 0。 */
 int  lck_pin_valid(const char *pin);
 
@@ -70,6 +74,20 @@ int  lck_pin_fail(void);
 /* 剩余锁定秒（0=未锁定）。若截止已过，自动清锁定戳+计数并落盘（进程内已解禁）。 */
 time_t lck_lock_remaining(void);
 
+/* ---- 面板一次性解锁恢复口（tmpfs 标志文件）----
+ * 锁屏页进入时 / 每次重试前调用：LCK_UNLOCK_ONCE_FILE 存在 → **删除并返回 1（放行进入系统一次）**；
+ * 不存在 → 0。不校验 PIN、不清除 system.pin 本身、不重置失败计数（重启标志自然消失）。 */
+int  lck_unlock_once_consume(void);
+
+/* ---- 电源菜单「锁定」主动锁标志（tmpfs，重启消失）----
+ * 主动锁屏：写 LCK_MANUAL_LOCK_FILE → 之后唤醒 `lck_wake_should_lock()` 无论 system.pin_lock_on_wake
+ * 是否开都必走锁屏；解锁（PIN 或面板绕过）时清除。 */
+int  lck_manual_lock_set(void);       /* 写标志；返回 MEOW_OK */
+void lck_manual_lock_clear(void);     /* 删标志（幂等） */
+/* 唤醒是否应锁屏：已配凭据 且 (system.pin_lock_on_wake=1 或 主动锁标志存在)。
+ * 取代 lck_lock_required(1) 作为唤醒门——主动锁强制锁屏，覆盖「关闭唤醒锁」的手动锁场景。 */
+int  lck_wake_should_lock(void);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/patch_v2/meow_launcherd/lock_screen_ui.c b/patch_v2/meow_launcherd/lock_screen_ui.c
index b28ccd8..dcfc061 100644
--- a/patch_v2/meow_launcherd/lock_screen_ui.c
+++ b/patch_v2/meow_launcherd/lock_screen_ui.c
@@ -134,6 +134,13 @@ int run_lock_screen(void)
     }
     time_t last_countdown = 0;
 
+    /* 面板一次性解锁恢复口：进入时消费（存在即删除+放行一次，不校验 PIN/不清 PIN/不重置失败计数） */
+    if (lck_unlock_once_consume()) {
+        lck_manual_lock_clear();             /* 进入系统即视为解除主动锁 */
+        logmsg("lock: unlock-once bypass consumed at entry -> release");
+        return 1;
+    }
+
     lk_draw(entered, status, lock_until);   /* 首帧 */
 
     int unlocked = 0;
@@ -141,6 +148,14 @@ int run_lock_screen(void)
         time_t now = time(NULL);
         int redraw = 0;
 
+        /* 面板一次性解锁恢复口：锁屏页停留期（每次重试前/每轮）也消费 */
+        if (lck_unlock_once_consume()) {
+            lck_manual_lock_clear();
+            logmsg("lock: unlock-once bypass consumed in-loop -> release");
+            unlocked = 1;
+            goto done;
+        }
+
         /* 锁定到期自动解禁（清计数+戳），仅重画状态行 */
         if (lock_until > 0 && now >= lock_until) {
             lck_lock_remaining();
@@ -209,6 +224,7 @@ int run_lock_screen(void)
                                         if (entered == LCK_PIN_LEN) {
                                             if (lck_pin_check(digits)) {
                                                 lck_pin_success();
+                                                lck_manual_lock_clear();   /* 主动锁标志消解 */
                                                 logmsg("lock: PIN OK -> unlock");
                                                 unlocked = 1;
                                                 goto done;
@@ -246,13 +262,135 @@ done:
     return unlocked;
 }
 
-/* 电源菜单「锁定」/ 唤醒共用的进入点。未配凭据 → no-op（无鉴别物，锁了也解不开）。
- * 返回与 run_lock_screen 同（1 已解锁 / 0 电源息屏 / 0 无凭据跳过）。 */
+/* 电源菜单「锁定」：**主动锁屏**（用户定案 2026-09-02 强化）。
+ * 语义 = 立即熄屏 + 进入锁定 + 作废挂起的面板绕过标志：
+ *   ① rm /tmp/meow_pin_unlock_once（主动锁屏作废一次性绕过）；
+ *   ② 写 /tmp/meow_pin_locked（主动锁标志 → 唤醒时无论 system.pin_lock_on_wake 是否开都必锁屏）；
+ *   ③ meow_panel_off() 立即熄屏（唤醒时经主屏唤醒路径弹锁屏页）。
+ * 不立即弹锁屏页（已熄屏）；未配凭据 → no-op。返回 0（关菜单，run_menu 继续）。 */
 int meow_lock_screen_engage(void)
 {
     if (!lck_pin_configured()) {
-        logmsg("lock: no system.pin/panel.pin configured -> skip lock (no-op)");
+        logmsg("lock: no system.pin/panel.pin configured -> skip manual lock (no-op)");
         return 0;
     }
-    return run_lock_screen();
+    if (access(LCK_UNLOCK_ONCE_FILE, F_OK) == 0) {
+        unlink(LCK_UNLOCK_ONCE_FILE);
+        logmsg("lock: manual active-lock revoked pending unlock-once bypass");
+    }
+    lck_manual_lock_set();
+    meow_panel_off();                 /* 立即熄屏；唤醒时必走锁屏 */
+    logmsg("lock: manual active-lock -> screen off + lock on wake");
+    return 0;
+}
+
+/* ---- 设置页「锁屏 PIN」数字输入模态（system 级 PIN 设置，用 SDK 按钮画数字键盘）----
+ * 全屏遮罩：title + 4 圆点(●)+ 数字键盘（1-9 / C / 0 / 退格）。输入满 4 位即返回 1 并拷贝到 out
+ * （不校验——调用方做双输确认/旧 PIN 校验）；电源键=取消返回 0；音量键不动。 */
+int lck_input_pin_modal(const char *title, char *out, int outcap)
+{
+    meow_screen_on = 1;
+    fb_pan_buf0_force();
+    meow_touch mt; mt_reset(&mt);
+    int tfd = open(DEV_TOUCH, O_RDONLY | O_NONBLOCK);
+    struct keypoll kp_power, kp_keys;
+    kp_open(&kp_power, DEV_POWER);
+    kp_open(&kp_keys, DEV_KEYS);
+
+    int entered = 0;
+    char digits[LCK_PIN_LEN + 1] = {0};
+    int result = 0;
+    int dirty = 1;          /* 首帧必画 */
+
+    for (;;) {
+        /* 只在首帧/输入变化时整页重绘（消频闪：锁屏低频交互），后续轮次不动 LCDC */
+        if (dirty) {
+            const meow_ui_theme_t *th = s_ui_theme();
+            fill_rect(0, 0, fb_xres, fb_yres, th->surface);
+            lk_text(fb_xres / 2, 120, title, 24, th->on_surface);
+            lk_draw_pin(entered, th);
+            for (int r = 0; r < LK_ROWS; r++) {
+                for (int c = 0; c < LK_COLS; c++) {
+                    int x, y, w, h; lk_key_rect(r, c, &x, &y, &w, &h);
+                    fill_round_rect(x, y, w, h, 12, th->surface_container);
+                    int key = lk_keys[r][c];
+                    if (key >= 0) {
+                        char d[2] = { (char)('0' + key), 0 };
+                        if (mfont_ready) {
+                            int fw = meow_font_width_text(d, 30);
+                            meow_font_drawtext((uint16_t *)fb, x + w / 2 - fw / 2,
+                                               y + LK_ROW_H / 2 - meow_font_line_height(30) / 2,
+                                               d, rgb565(th->on_surface), 30);
+                        } else {
+                            draw_text(x + w / 2 - 7, y + LK_ROW_H / 2 - 14, d, 2, th->on_surface);
+                        }
+                    } else if (key == LK_ACT_CLR) {
+                        const char *t2 = "C"; if (mfont_ready) t2 = "清空";
+                        lk_text(x + w / 2, y + LK_ROW_H / 2 - 9, t2, 22, th->on_surface);
+                    } else {
+                        const char *t2 = "DEL"; if (mfont_ready) t2 = "退格";
+                        lk_text(x + w / 2, y + LK_ROW_H / 2 - 9, t2, 22, th->on_surface);
+                    }
+                }
+            }
+            meow_dirty_full();
+            fb_pan_buf0_force();
+            meow_ui_flush();
+            dirty = 0;
+        }
+
+        if (kp_power.ok) {
+            kp_poll(&kp_power, NULL, NULL);
+            if (kp_is_down(&kp_power, KEY_POWER)) { result = 0; break; }   /* 取消 */
+        }
+        kp_poll(&kp_keys, NULL, NULL);
+        (void)kp_is_down(&kp_keys, KEY_VOLUMEDOWN);
+        (void)kp_is_down(&kp_keys, KEY_VOLUMEUP);
+
+        if (tfd >= 0) {
+            struct pollfd pfd = { tfd, POLLIN, 0 };
+            if (poll(&pfd, 1, 0) > 0) {
+                unsigned char ev[16];
+                while (read(tfd, ev, sizeof ev) == (ssize_t)sizeof ev) {
+                    uint16_t type = *(uint16_t *)(ev + 8), code = *(uint16_t *)(ev + 10);
+                    int32_t val = *(int32_t *)(ev + 12);
+                    if (type == EV_ABS) {
+                        if (code == ABS_X || code == ABS_MT_POSITION_X) mt_abs(&mt, val, mt.last_y);
+                        else if (code == ABS_Y || code == ABS_MT_POSITION_Y) mt_abs(&mt, mt.last_x, val);
+                    } else if (type == EV_KEY && code == BTN_TOUCH) {
+                        if (val && !mt.down) { mt_down(&mt); }
+                        else if (!val && mt.down) {
+                            int dx, dy;
+                            if (mt_up(&mt, &dx, &dy)) {
+                                for (int r = 0; r < LK_ROWS; r++) {
+                                    for (int c = 0; c < LK_COLS; c++) {
+                                        int x, y, w, h; lk_key_rect(r, c, &x, &y, &w, &h);
+                                        if (!mt_in(&mt, x, y, w, h)) continue;
+                                        int key = lk_keys[r][c];
+                                        if (key >= 0) {
+                                            if (entered < LCK_PIN_LEN) { digits[entered++] = (char)('0' + key); digits[entered] = 0; }
+                                        } else if (key == LK_ACT_CLR) { entered = 0; digits[0] = 0; }
+                                        else if (key == LK_ACT_BS) { if (entered > 0) { entered--; digits[entered] = 0; } }
+                                        dirty = 1;
+                                        if (entered == LCK_PIN_LEN) {
+                                            if (out && outcap > LCK_PIN_LEN) { snprintf(out, (size_t)outcap, "%s", digits); result = 1; }
+                                            else result = 1;
+                                            goto done2;
+                                        }
+                                        break;
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+        usleep(POLL_MS * 1000);
+    }
+done2:
+    if (tfd >= 0) close(tfd);
+    kp_close(&kp_power);
+    kp_close(&kp_keys);
+    return result;
 }
diff --git a/patch_v2/meow_launcherd/lock_settings.c b/patch_v2/meow_launcherd/lock_settings.c
new file mode 100644
index 0000000..6b58724
--- /dev/null
+++ b/patch_v2/meow_launcherd/lock_settings.c
@@ -0,0 +1,145 @@
+/* lock_settings.c — MeowOS 系统设置「锁屏 PIN」独立子页面（subpage.c 脚手架，用户定案 2026-09-02）。
+ *
+ * 页面（sub_page_t 驱动，同 wifi_page/bt_page）：
+ *   - 状态行（SUB_ROW）：未设置 / 已设置 / 锁定中（剩余 mm:ss）
+ *   - [未设] 设置 PIN：4 位数字双输入确认（lck_input_pin_modal，SDK 数字键）
+ *   - [已设] 修改 PIN：需旧 PIN 一次校验 + 新 PIN 双输入确认
+ *   - [已设] 清除 PIN：**无需旧密码**（物理持机即授权，仅 s_dd_modal 二次确认）→ lck_pin_clear
+ *   - 唤醒后锁屏（system.pin_lock_on_wake）开关行
+ * 全程走 lock_screen.c 纯逻辑 + meow_settings 后端（无旁路）。
+ */
+#include "meow_launcher_internal.h"
+
+#define LS_ACT_STATUS  0
+#define LS_ACT_SET     1
+#define LS_ACT_MODIFY  2
+#define LS_ACT_CLEAR   3
+#define LS_ACT_WAKE    4
+
+static char g_ls_status[48];              /* 状态行摘要（rows 填，paint 后不再变） */
+
+static void ls_status_text(char *buf, int len)
+{
+    if (!lck_pin_configured()) { snprintf(buf, len, "未设置"); return; }
+    time_t rem = lck_lock_remaining();
+    if (rem > 0) snprintf(buf, len, "锁定中（%d:%02d）", (int)(rem / 60), (int)(rem % 60));
+    else         snprintf(buf, len, "已设置");
+}
+
+static int ls_rows(void *ctx, sub_row_t *rbuf, int max)
+{
+    (void)ctx;
+    int n = 0;
+    if (n < max) { rbuf[n].kind = SUB_HDR; rbuf[n].label = "锁屏 PIN"; rbuf[n].sub = NULL; rbuf[n].on = 0; rbuf[n].act = 0; n++; }
+    ls_status_text(g_ls_status, sizeof g_ls_status);
+    if (n < max) { rbuf[n].kind = SUB_ROW; rbuf[n].label = "状态"; rbuf[n].sub = g_ls_status; rbuf[n].on = 0; rbuf[n].act = LS_ACT_STATUS; n++; }
+    int configured = lck_pin_configured();
+    if (!configured) {
+        if (n < max) { rbuf[n].kind = SUB_ACT; rbuf[n].label = "设置 PIN"; rbuf[n].sub = NULL; rbuf[n].on = 0; rbuf[n].act = LS_ACT_SET; n++; }
+    } else {
+        if (n < max) { rbuf[n].kind = SUB_ACT; rbuf[n].label = "修改 PIN"; rbuf[n].sub = NULL; rbuf[n].on = 0; rbuf[n].act = LS_ACT_MODIFY; n++; }
+        if (n < max) { rbuf[n].kind = SUB_ACT; rbuf[n].label = "清除 PIN"; rbuf[n].sub = NULL; rbuf[n].on = 0; rbuf[n].act = LS_ACT_CLEAR; n++; }
+    }
+    if (n < max) {
+        int wake = 1;
+        if (meow_settings_get_int("system.pin_lock_on_wake", &wake) != 0) wake = 1;
+        rbuf[n].kind = SUB_SW; rbuf[n].label = "唤醒后锁屏"; rbuf[n].sub = NULL;
+        rbuf[n].on = wake; rbuf[n].act = LS_ACT_WAKE; n++;
+    }
+    return n;
+}
+
+static void ls_modal(const char *title, const char *line)
+{
+    const char *it[1]; it[0] = line;
+    s_dd_modal(title, it, 1, -1);
+}
+
+static int ls_do_modify(void)
+{
+    char old[LCK_PIN_LEN + 1];
+    if (!lck_input_pin_modal("输入当前 PIN", old, sizeof old)) return 0;
+    if (!lck_pin_check(old)) { ls_modal("修改 PIN", "当前 PIN 错误"); return 1; }
+    char a[LCK_PIN_LEN + 1], b[LCK_PIN_LEN + 1];
+    if (!lck_input_pin_modal("设置新 PIN", a, sizeof a)) return 0;
+    if (!lck_input_pin_modal("再次确认新 PIN", b, sizeof b)) return 0;
+    if (strcmp(a, b) != 0) { ls_modal("修改 PIN", "两次输入不一致"); return 1; }
+    if (lck_pin_set(a) == MEOW_OK) ls_modal("修改 PIN", "已修改");
+    else                            ls_modal("修改 PIN", "设置失败");
+    return 1;
+}
+
+static int ls_do_set(void)
+{
+    char a[LCK_PIN_LEN + 1], b[LCK_PIN_LEN + 1];
+    if (!lck_input_pin_modal("设置 4 位 PIN", a, sizeof a)) return 0;
+    if (!lck_input_pin_modal("再次输入确认", b, sizeof b)) return 0;
+    if (strcmp(a, b) != 0) { ls_modal("设置 PIN", "两次输入不一致"); return 1; }
+    if (lck_pin_set(a) == MEOW_OK) ls_modal("设置 PIN", "已设置");
+    else                            ls_modal("设置 PIN", "设置失败");
+    return 1;
+}
+
+static int ls_do_clear(void)
+{
+    const char *items[2]; items[0] = "是"; items[1] = "否";
+    int pick = s_dd_modal("确定清除锁屏 PIN？", items, 2, 1);   /* 默认「否」（安全） */
+    if (pick != 0) return 1;
+    if (lck_pin_clear() == MEOW_OK) ls_modal("清除 PIN", "已清除");
+    else                            ls_modal("清除 PIN", "清除失败（settings 不可写）");
+    return 1;
+}
+
+static int ls_act(void *ctx, int idx, int act)
+{
+    (void)ctx; (void)idx;
+    switch (act) {
+    case LS_ACT_SET:    return ls_do_set();
+    case LS_ACT_MODIFY: return ls_do_modify();
+    case LS_ACT_CLEAR:  return ls_do_clear();
+    case LS_ACT_WAKE: {
+        int v = 1;
+        if (meow_settings_get_int("system.pin_lock_on_wake", &v) != 0) v = 1;
+        meow_settings_set_int("system.pin_lock_on_wake", v ? 0 : 1);
+        meow_settings_save();
+        logmsg("lock_settings: wake-lock toggle -> %d", v ? 0 : 1);
+        return 1;   /* 重绘 + 重填行（开关态） */
+    }
+    default: return 0;
+    }
+}
+
+static int ls_detail(void *ctx, int idx, int act)
+{
+    (void)ctx; (void)idx;
+    if (act == LS_ACT_STATUS) {
+        char line[80];
+        ls_status_text(line, sizeof line);
+        int rem = (int)lck_lock_remaining();
+        if (lck_pin_configured() && rem > 0) {
+            char buff[96];
+            snprintf(buff, sizeof buff, "连续错误已锁定，剩余 %d:%02d 后重试", rem / 60, rem % 60);
+            ls_modal("锁屏 PIN", buff);
+        } else {
+            ls_modal("锁屏 PIN", line);
+        }
+        return 1;
+    }
+    return 0;
+}
+
+/* 运行「锁屏 PIN」独立子页面（阻塞到返回） */
+int run_lock_settings_page(void)
+{
+    sub_page_t p;
+    memset(&p, 0, sizeof p);
+    p.title = "锁屏 PIN";
+    p.top_sw = NULL;
+    p.top_sw_set = NULL;
+    p.rows = ls_rows;
+    p.act = ls_act;
+    p.detail = ls_detail;
+    p.live = 0;
+    p.ctx = NULL;
+    return meow_subpage_run(&p);
+}
diff --git a/patch_v2/meow_launcherd/main_menu.c b/patch_v2/meow_launcherd/main_menu.c
index 4e176f4..95724d9 100644
--- a/patch_v2/meow_launcherd/main_menu.c
+++ b/patch_v2/meow_launcherd/main_menu.c
@@ -1146,7 +1146,7 @@ static void run_menu(struct app apps[MAX_APPS], int napps, int state,
                          * 先弹阻塞式锁屏页；解锁才重绘主屏，息屏则留 dirty 下次再锁。 */
                         meow_auto_slept = 0;          /* M2.17：手动/自动息屏后电源单击唤醒均清自动态 */
                         last_input_ms = now_ms();     /* M2.18 Bug 1：用真实墙钟（防 t 过期回绕） */
-                        if (lck_lock_required(1)) {
+                        if (lck_wake_should_lock()) {
                             int lr = run_lock_screen();
                             /* 重播按键防抖基线（阻塞期间按键可能已变化，防误判新边沿） */
                             memset(&kd_pwr, 0, sizeof kd_pwr);
@@ -1553,7 +1553,7 @@ static void run_menu(struct app apps[MAX_APPS], int napps, int state,
             meow_auto_slept = 0;
             last_input_ms = now_ms();
             /* M2.x 锁屏：自动息屏唤醒后若需锁屏 → 弹阻塞式锁屏页；解锁才重绘，息屏留 dirty */
-            if (lck_lock_required(1)) {
+            if (lck_wake_should_lock()) {
                 int lr = run_lock_screen();
                 memset(&kd_pwr, 0, sizeof kd_pwr);
                 memset(&kd_vold, 0, sizeof kd_vold);
diff --git a/patch_v2/meow_launcherd/meow_launcher_internal.h b/patch_v2/meow_launcherd/meow_launcher_internal.h
index 5eef792..61db69c 100644
--- a/patch_v2/meow_launcherd/meow_launcher_internal.h
+++ b/patch_v2/meow_launcherd/meow_launcher_internal.h
@@ -190,6 +190,7 @@ extern "C" {
 #define NET_LIST_ABOUT      6   /* 系统设置「关于本机」：只读设备信息弹窗（复用 s_dd_modal） */
 #define NET_LIST_WIFI_PAGE  7   /* M2.76：WiFi 独立子页面入口（tap → run_wifi_page） */
 #define NET_LIST_BT_PAGE    8   /* M2.76：蓝牙独立子页面入口（tap → run_bt_page） */
+#define NET_LIST_PIN_PAGE   9   /* M6.x：锁屏 PIN 独立子页面入口（tap → run_lock_settings_page） */
 #define S_NET_MAX 8             /* 网络下拉一次最多展示项（屏幕高度限制） */
 #define BG_PRESETS_N 3
 #define HK_PRESETS_N 2
@@ -826,6 +827,10 @@ int show_power_menu(void);
  * meow_lock_screen_engage() 供电源菜单「锁定」与唤醒路径用；未配凭据时 no-op。 */
 int run_lock_screen(void);
 int meow_lock_screen_engage(void);
+/* 设置页「锁屏 PIN」数字输入模态（系统级 PIN 设置/修改输入）：满 4 位返回 1 并拷贝到 out，电源=取消返回 0。 */
+int lck_input_pin_modal(const char *title, char *out, int outcap);
+/* 设置页「锁屏 PIN」独立子页面（subpage.c 脚手架；阻塞到返回）。 */
+int run_lock_settings_page(void);
 int stop_player(void);
 /* 电源管理服务 IPC（SYSTEM_FRAMEWORK_SERVICES §3.2：launcher 电源动作经 meow_svc_power 执行） */
 int pm_power_ipc(uint32_t cmd, uint32_t flag, const char *arg, char *res, int reslen);
diff --git a/patch_v2/meow_launcherd/meow_launcherd b/patch_v2/meow_launcherd/meow_launcherd
index bc8096f..87680be 100755
Binary files a/patch_v2/meow_launcherd/meow_launcherd and b/patch_v2/meow_launcherd/meow_launcherd differ
diff --git a/patch_v2/meow_launcherd/net.c b/patch_v2/meow_launcherd/net.c
index 3d7b1de..07dcaed 100644
--- a/patch_v2/meow_launcherd/net.c
+++ b/patch_v2/meow_launcherd/net.c
@@ -694,6 +694,11 @@ int s_net_get(const srow_t *r, char *buf, int len)
     case NET_LIST_ABOUT:      snprintf(buf, len, "MeowOS v%s", g_meowos_version); return 0;
     case NET_LIST_WIFI_PAGE:  snprintf(buf, len, "%s", g_net_ssid); return 0;  /* M2.76：子页入口摘要 */
     case NET_LIST_BT_PAGE:    snprintf(buf, len, "%s", g_bt_mode); return 0;   /* M2.76 */
+    case NET_LIST_PIN_PAGE: {                                                /* M6.x：锁屏 PIN 入口摘要 */
+        if (!lck_pin_configured()) { snprintf(buf, len, "未设置"); }
+        else if (lck_lock_remaining() > 0) { snprintf(buf, len, "锁定中"); }
+        else { snprintf(buf, len, "已设置"); }
+        return 0; }
     }
     snprintf(buf, len, "-");
     return 0;
diff --git a/patch_v2/meow_launcherd/settings_page.c b/patch_v2/meow_launcherd/settings_page.c
index 4b73b1a..fedff04 100644
--- a/patch_v2/meow_launcherd/settings_page.c
+++ b/patch_v2/meow_launcherd/settings_page.c
@@ -115,6 +115,9 @@ static const srow_t SMENU[] = {
     { "音量上限", "audio.volume_max", SC_SLIDER, 0,100,1, NULL,NULL,0,0 },
     { "音量跳步", "audio.volume_step", SC_SLIDER, 1,5,1, NULL,NULL,0,0 },
     { "输出设备", "audio.output", SC_PRESET, 0,0,0, out_presets, out_preset_labels, OUT_PRESETS_N,0 },
+    /* M6.x 锁屏：安全组「锁屏 PIN」独立子页面（状态/设置/修改/清除/唤醒锁开关，见 lock_settings.c） */
+    { "安全", NULL, SC_HEADER, 0,0,0, NULL,NULL,0,0 },
+    { "锁屏 PIN", NULL, SC_LIST, 0,0,0, NULL,NULL,0, NET_LIST_PIN_PAGE },
     /* 关于（设置列表最底；「关于本机」点开 s_about_open 弹只读设备信息框） */
     { "关于", NULL, SC_HEADER, 0,0,0, NULL,NULL,0,0 },
     { "关于本机", NULL, SC_LIST, 0,0,0, NULL,NULL,0, NET_LIST_ABOUT },
@@ -1276,6 +1279,7 @@ void run_settings_page(void)
                                             after_modal = 1;
                                             if (r->net_list == NET_LIST_WIFI_PAGE) { run_wifi_page(); s_net_refresh(); }
                                             else if (r->net_list == NET_LIST_BT_PAGE) { run_bt_page(); s_net_refresh(); }
+                                            else if (r->net_list == NET_LIST_PIN_PAGE) { run_lock_settings_page(); s_net_refresh(); }
                                             else s_net_open(r);
                                             if (tfd >= 0) {
                                                 unsigned char e[16];
diff --git a/patch_v2/meow_launcherd/test_lock_screen.c b/patch_v2/meow_launcherd/test_lock_screen.c
index b5c92e6..f0093d6 100644
--- a/patch_v2/meow_launcherd/test_lock_screen.c
+++ b/patch_v2/meow_launcherd/test_lock_screen.c
@@ -62,6 +62,30 @@ int main(void)
     CHECK(lck_lock_required(1) == 1, "wake-required=1 after wake=1");
     /* 开机不锁是结构性（boot 路径不调 lck_lock_required）——此处断言决策函数正确即隔离该项 */
 
+    /* ---- 唤醒门=主动锁标志：唤醒锁关 + 主动锁标志 → 仍必锁屏（电源菜单「锁定」语义）---- */
+    unlink("/tmp/meow_pin_locked");
+    meow_settings_set_int("system.pin_lock_on_wake", 0);
+    meow_settings_save();
+    CHECK(lck_wake_should_lock() == 0, "wake_should_lock=0 (wake=0, no manual marker)");
+    CHECK(lck_manual_lock_set() == MEOW_OK, "manual_lock_set ok");
+    CHECK(lck_wake_should_lock() == 1, "wake_should_lock=1 (manual marker, wake=0)");
+    lck_manual_lock_clear();
+    CHECK(lck_wake_should_lock() == 0, "wake_should_lock=0 after manual marker cleared");
+    meow_settings_set_int("system.pin_lock_on_wake", 1);
+    meow_settings_save();
+    CHECK(lck_wake_should_lock() == 1, "wake_should_lock=1 (wake=1)");
+
+    /* ---- 面板一次性解锁恢复口（bypass 标志）---- */
+    CHECK(lck_unlock_once_consume() == 0, "unlock_once_consume=0 when flag absent");
+    {
+        int fd = open("/tmp/meow_pin_unlock_once", O_WRONLY | O_CREAT | O_TRUNC, 0644);
+        CHECK(fd >= 0, "create unlock_once flag");
+        if (fd >= 0) { write(fd, "1", 1); close(fd); }
+    }
+    CHECK(lck_unlock_once_consume() == 1, "unlock_once_consume=1 when flag present");
+    CHECK(access("/tmp/meow_pin_unlock_once", F_OK) != 0, "bypass flag consumed (deleted)");
+    CHECK(lck_unlock_once_consume() == 0, "unlock_once_consume=0 after consumed");
+
     /* ---- 错 5 次锁定（持久化，重启不清）---- */
     CHECK(lck_lock_remaining() == 0, "not locked before fails");
     int r1 = lck_pin_fail();   /* 1 */
@@ -109,14 +133,28 @@ int main(void)
     CHECK(strcmp(sp2, pphash) == 0, "system.pin == panel.pin after migrate");
     CHECK(lck_pin_check("5678") == 1, "still accept after migrate (via system.pin)");
 
+    /* ---- 清除免旧 PIN（设置页清除语义：物理持机即授权，无旧密码要求）---- */
+    /* 先设一个 PIN，然后**不验旧 PIN** 直接 lck_pin_clear()（清除 API 本身无旧 PIN 前置）。
+     * 先清 panel.pin（迁移残留），确保「已设」只由 system.pin 贡献。 */
+    meow_settings_set_str("panel.pin", "");
+    meow_settings_save();
+    CHECK(lck_pin_set("2468") == MEOW_OK, "set pin 2468 for clear");
+    CHECK(lck_pin_configured() == 1, "configured before clear");
+    CHECK(lck_pin_clear() == MEOW_OK, "clear WITHOUT old PIN succeeds");
+    CHECK(lck_pin_configured() == 0, "not configured after clear (no old PIN path)");
+
     /* ---- 清除（兜底解锁）：lck_pin_clear 后不再要求锁 ---- */
     /* lck_pin_clear 只清 system.pin；panel.pin 仍存（迁移源），先清掉再断言全部未配 */
     meow_settings_set_str("panel.pin", "");
     meow_settings_save();
-    CHECK(lck_pin_clear() == MEOW_OK, "pin clear");
+    CHECK(lck_pin_clear() == MEOW_OK, "pin clear (final)");
     CHECK(lck_pin_configured() == 0, "not configured after clear");
     CHECK(lck_lock_required(1) == 0, "wake-required=0 after clear");
 
+    /* 清理临时标志文件（幂等） */
+    unlink("/tmp/meow_pin_unlock_once");
+    unlink("/tmp/meow_pin_locked");
+
     unlink(conf);
     printf("\n%s\n", g_fail ? "SOME TESTS FAILED" : "ALL PASS");
     return g_fail ? 1 : 0;