diff --git a/api/save_avatar.php b/api/save_avatar.php
index 4942e6d..ad86c6c 100644
--- a/api/save_avatar.php
+++ b/api/save_avatar.php
@@ -57,5 +57,23 @@ try {
     respond(false, '保存失败: ' . $e->getMessage());
 }
 
-respond(true, '保存成功', str_replace($_SERVER['DOCUMENT_ROOT'], '', $targetPath));
+$bytes = @filesize($targetPath) ?: 0;
+try {
+    $statsRoot = __DIR__ . '/../stats';
+    if (!is_dir($statsRoot)) { @mkdir($statsRoot, 0777, true); }
+    $dailyPath = $statsRoot . '/daily.json';
+    $today = (new DateTime('now'))->format('Y-m-d');
+    $daily = [];
+    if (file_exists($dailyPath)) {
+        $rawDaily = @file_get_contents($dailyPath);
+        $decoded = json_decode($rawDaily, true);
+        if (is_array($decoded)) { $daily = $decoded; }
+    }
+    if (!isset($daily[$today]) || !is_array($daily[$today])) {
+        $daily[$today] = ['visits' => 0, 'video_plays' => 0, 'picture_shows' => 0, 'uv' => 0, 'bandwidth_in' => 0, 'bandwidth_out' => 0];
+    }
+    $daily[$today]['bandwidth_out'] += (int)$bytes;
+    @file_put_contents($dailyPath, json_encode($daily, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT), LOCK_EX);
+} catch (Throwable $e) {}
 
+respond(true, '保存成功', str_replace($_SERVER['DOCUMENT_ROOT'], '', $targetPath));
diff --git a/api/save_picture.php b/api/save_picture.php
index 30b4fbe..2607f74 100644
--- a/api/save_picture.php
+++ b/api/save_picture.php
@@ -62,5 +62,23 @@ try {
     respond(false, '保存失败: ' . $e->getMessage());
 }
 
-respond(true, '保存成功', str_replace($_SERVER['DOCUMENT_ROOT'], '', $targetPath));
+$bytes = @filesize($targetPath) ?: 0;
+try {
+    $statsRoot = __DIR__ . '/../stats';
+    if (!is_dir($statsRoot)) { @mkdir($statsRoot, 0777, true); }
+    $dailyPath = $statsRoot . '/daily.json';
+    $today = (new DateTime('now'))->format('Y-m-d');
+    $daily = [];
+    if (file_exists($dailyPath)) {
+        $rawDaily = @file_get_contents($dailyPath);
+        $decoded = json_decode($rawDaily, true);
+        if (is_array($decoded)) { $daily = $decoded; }
+    }
+    if (!isset($daily[$today]) || !is_array($daily[$today])) {
+        $daily[$today] = ['visits' => 0, 'video_plays' => 0, 'picture_shows' => 0, 'uv' => 0, 'bandwidth_in' => 0, 'bandwidth_out' => 0];
+    }
+    $daily[$today]['bandwidth_out'] += (int)$bytes;
+    @file_put_contents($dailyPath, json_encode($daily, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT), LOCK_EX);
+} catch (Throwable $e) {}
 
+respond(true, '保存成功', str_replace($_SERVER['DOCUMENT_ROOT'], '', $targetPath));
diff --git a/api/save_video.php b/api/save_video.php
index 448b216..3aaee4b 100644
--- a/api/save_video.php
+++ b/api/save_video.php
@@ -77,6 +77,25 @@ if ($skipDownload) {
     }
 }
 
+$bytes = @filesize($targetPath) ?: 0;
+try {
+    $statsRoot = __DIR__ . '/../stats';
+    if (!is_dir($statsRoot)) { @mkdir($statsRoot, 0777, true); }
+    $dailyPath = $statsRoot . '/daily.json';
+    $today = (new DateTime('now'))->format('Y-m-d');
+    $daily = [];
+    if (file_exists($dailyPath)) {
+        $rawDaily = @file_get_contents($dailyPath);
+        $decoded = json_decode($rawDaily, true);
+        if (is_array($decoded)) { $daily = $decoded; }
+    }
+    if (!isset($daily[$today]) || !is_array($daily[$today])) {
+        $daily[$today] = ['visits' => 0, 'video_plays' => 0, 'picture_shows' => 0, 'uv' => 0, 'bandwidth_in' => 0, 'bandwidth_out' => 0];
+    }
+    $daily[$today]['bandwidth_out'] += (int)$bytes;
+    @file_put_contents($dailyPath, json_encode($daily, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT), LOCK_EX);
+} catch (Throwable $e) {}
+
 // 恢复清理逻辑：仅保留最近两天的视频目录，删除更早的目录
 try {
     $dirs = @scandir($videosRoot);
@@ -93,7 +112,7 @@ try {
         // 按日期升序排序
         sort($dateDirs);
         // 保留最近两天（末尾两项），其它全部删除
-        if (count($dateDirs) > 30) {
+        if (count($dateDirs) > 2) {
             $toDelete = array_slice($dateDirs, 0, count($dateDirs) - 2);
             foreach ($toDelete as $del) {
                 rrmdir($videosRoot . DIRECTORY_SEPARATOR . $del);
diff --git a/api/stats.php b/api/stats.php
new file mode 100644
index 0000000..ad07684
--- /dev/null
+++ b/api/stats.php
@@ -0,0 +1,99 @@
+<?php
+header('Content-Type: application/json; charset=utf-8');
+
+$method = $_SERVER['REQUEST_METHOD'] ?? 'GET';
+$statsRoot = __DIR__ . '/../stats';
+if (!is_dir($statsRoot)) { @mkdir($statsRoot, 0777, true); }
+$eventsRoot = $statsRoot . '/events';
+if (!is_dir($eventsRoot)) { @mkdir($eventsRoot, 0777, true); }
+$uvRoot = $statsRoot . '/uv';
+if (!is_dir($uvRoot)) { @mkdir($uvRoot, 0777, true); }
+$dailyPath = $statsRoot . '/daily.json';
+$today = (new DateTime('now'))->format('Y-m-d');
+
+if ($method === 'GET') {
+    $daily = [];
+    if (file_exists($dailyPath)) {
+        $rawDaily = @file_get_contents($dailyPath);
+        $decoded = json_decode($rawDaily, true);
+        if (is_array($decoded)) { $daily = $decoded; }
+    }
+    $keys = array_keys($daily);
+    sort($keys);
+    $last7 = array_slice($keys, max(0, count($keys) - 7));
+    $out = [];
+    foreach ($last7 as $k) { $out[$k] = $daily[$k]; }
+    $todayData = $daily[$today] ?? ['visits' => 0, 'video_plays' => 0, 'picture_shows' => 0, 'uv' => 0, 'bandwidth_in' => 0, 'bandwidth_out' => 0];
+    echo json_encode(['success' => true, 'today' => $todayData, 'daily' => $out], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
+    exit;
+}
+
+$raw = file_get_contents('php://input');
+$data = json_decode($raw, true);
+$event = isset($data['event']) ? trim((string)$data['event']) : '';
+$page = isset($data['page']) ? trim((string)$data['page']) : '';
+$url = isset($data['url']) ? trim((string)$data['url']) : '';
+$title = isset($data['title']) ? trim((string)$data['title']) : '';
+$allowed = ['visit','video_play','picture_show','bandwidth'];
+if (!in_array($event, $allowed, true)) {
+    echo json_encode(['success' => false, 'message' => 'invalid event']);
+    exit;
+}
+
+$daily = [];
+if (file_exists($dailyPath)) {
+    $rawDaily = @file_get_contents($dailyPath);
+    $decoded = json_decode($rawDaily, true);
+    if (is_array($decoded)) { $daily = $decoded; }
+}
+if (!isset($daily[$today]) || !is_array($daily[$today])) {
+    $daily[$today] = ['visits' => 0, 'video_plays' => 0, 'picture_shows' => 0, 'uv' => 0, 'bandwidth_in' => 0, 'bandwidth_out' => 0];
+}
+if ($event === 'visit') { $daily[$today]['visits']++; }
+if ($event === 'video_play') { $daily[$today]['video_plays']++; }
+if ($event === 'picture_show') { $daily[$today]['picture_shows']++; }
+
+if ($event === 'visit') {
+    $uvPath = $uvRoot . '/' . $today . '.json';
+    $ips = [];
+    if (file_exists($uvPath)) {
+        $rawIps = @file_get_contents($uvPath);
+        $decodedIps = json_decode($rawIps, true);
+        if (is_array($decodedIps)) { $ips = $decodedIps; }
+    }
+    $ip = $_SERVER['REMOTE_ADDR'] ?? '';
+    if ($ip !== '') {
+        if (!in_array($ip, $ips, true)) { $ips[] = $ip; }
+    }
+    @file_put_contents($uvPath, json_encode($ips, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES), LOCK_EX);
+    $daily[$today]['uv'] = count($ips);
+}
+@file_put_contents($dailyPath, json_encode($daily, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT), LOCK_EX);
+
+$eventsPath = $eventsRoot . '/' . $today . '.json';
+$events = [];
+if (file_exists($eventsPath)) {
+    $rawEvents = @file_get_contents($eventsPath);
+    $decoded = json_decode($rawEvents, true);
+    if (is_array($decoded)) { $events = $decoded; }
+}
+$events[] = [
+    'type' => $event,
+    'page' => $page,
+    'url' => $url,
+    'title' => $title,
+    'direction' => $direction ?? '',
+    'bytes' => $bytes ?? 0,
+    'ip' => $_SERVER['REMOTE_ADDR'] ?? '',
+    'ua' => $_SERVER['HTTP_USER_AGENT'] ?? '',
+    'ts' => (new DateTime('now'))->format(DateTime::ATOM),
+];
+@file_put_contents($eventsPath, json_encode($events, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT), LOCK_EX);
+
+echo json_encode(['success' => true, 'today' => $daily[$today]], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
+$direction = isset($data['direction']) ? (string)$data['direction'] : '';
+$bytes = isset($data['bytes']) ? intval($data['bytes']) : 0;
+if ($event === 'bandwidth' && $bytes > 0) {
+    if ($direction === 'in') { $daily[$today]['bandwidth_in'] += $bytes; }
+    else if ($direction === 'out') { $daily[$today]['bandwidth_out'] += $bytes; }
+}
diff --git a/api/upload_picture.php b/api/upload_picture.php
index 22a24d9..d19c188 100644
--- a/api/upload_picture.php
+++ b/api/upload_picture.php
@@ -71,6 +71,25 @@ if (!move_uploaded_file($file['tmp_name'], $target)) {
   exit;
 }
 
+$bytes = (int)($file['size'] ?? 0);
+try {
+  $statsRoot = __DIR__ . '/../stats';
+  if (!is_dir($statsRoot)) { @mkdir($statsRoot, 0777, true); }
+  $dailyPath = $statsRoot . '/daily.json';
+  $today = (new DateTime('now'))->format('Y-m-d');
+  $daily = [];
+  if (file_exists($dailyPath)) {
+    $rawDaily = @file_get_contents($dailyPath);
+    $decoded = json_decode($rawDaily, true);
+    if (is_array($decoded)) { $daily = $decoded; }
+  }
+  if (!isset($daily[$today]) || !is_array($daily[$today])) {
+    $daily[$today] = ['visits' => 0, 'video_plays' => 0, 'picture_shows' => 0, 'uv' => 0, 'bandwidth_in' => 0, 'bandwidth_out' => 0];
+  }
+  $daily[$today]['bandwidth_in'] += (int)$bytes;
+  @file_put_contents($dailyPath, json_encode($daily, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT), LOCK_EX);
+} catch (Throwable $e) {}
+
 $meta = [
   'original_name' => $origName,
   'saved_name' => basename($target),
diff --git a/api/upload_video.php b/api/upload_video.php
index f1e62bf..3561e2f 100644
--- a/api/upload_video.php
+++ b/api/upload_video.php
@@ -73,6 +73,25 @@ if (!move_uploaded_file($file['tmp_name'], $target)) {
   exit;
 }
 
+$bytes = (int)($file['size'] ?? 0);
+try {
+  $statsRoot = __DIR__ . '/../stats';
+  if (!is_dir($statsRoot)) { @mkdir($statsRoot, 0777, true); }
+  $dailyPath = $statsRoot . '/daily.json';
+  $today = (new DateTime('now'))->format('Y-m-d');
+  $daily = [];
+  if (file_exists($dailyPath)) {
+    $rawDaily = @file_get_contents($dailyPath);
+    $decoded = json_decode($rawDaily, true);
+    if (is_array($decoded)) { $daily = $decoded; }
+  }
+  if (!isset($daily[$today]) || !is_array($daily[$today])) {
+    $daily[$today] = ['visits' => 0, 'video_plays' => 0, 'picture_shows' => 0, 'uv' => 0, 'bandwidth_in' => 0, 'bandwidth_out' => 0];
+  }
+  $daily[$today]['bandwidth_in'] += (int)$bytes;
+  @file_put_contents($dailyPath, json_encode($daily, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT), LOCK_EX);
+} catch (Throwable $e) {}
+
 // 可选：记录一个简单的元信息文件
 $meta = [
   'original_name' => $origName,
diff --git a/assets/script.js b/assets/script.js
index 1d9fa84..861d98f 100644
--- a/assets/script.js
+++ b/assets/script.js
@@ -14,6 +14,44 @@ document.addEventListener('DOMContentLoaded', () => {
   const videoWrap = document.getElementById('videoWrap');
   const videoPanel = document.getElementById('video');
   const includeLocalToggle = document.getElementById('includeLocalToggle');
+  const statFlowEl = document.getElementById('statFlow');
+  const statVisitEl = document.getElementById('statVisit');
+  const statVideoEl = document.getElementById('statVideo');
+  const statPicEl = document.getElementById('statPic');
+  const formatBytes = (n) => {
+    let val = Number(n) || 0;
+    const units = ['B','KB','MB','GB','TB','PB','EB','ZB','YB'];
+    let i = 0;
+    while (val >= 1024 && i < units.length - 1) { val /= 1024; i++; }
+    const digits = val >= 100 ? 0 : (val >= 10 ? 1 : 2);
+    return val.toFixed(digits) + ' ' + units[i];
+  };
+  const formatCount = (n) => {
+    if (n >= 100000000) return (n / 100000000).toFixed(n < 1000000000 ? 2 : 1) + ' 亿';
+    if (n >= 10000) return (n / 10000).toFixed(n < 100000 ? 2 : 1) + ' 万';
+    return new Intl.NumberFormat('zh-CN').format(n);
+  };
+  const updateStatsUI = (t) => {
+    if (!t) return;
+    const bw = (t.bandwidth_in ?? 0) + (t.bandwidth_out ?? 0);
+    if (statFlowEl) statFlowEl.textContent = formatBytes(bw);
+    if (statVisitEl) statVisitEl.textContent = formatCount(t.visits ?? 0);
+    if (statVideoEl) statVideoEl.textContent = formatCount(t.video_plays ?? 0);
+    if (statPicEl) statPicEl.textContent = formatCount(t.picture_shows ?? 0);
+  };
+  const track = async (payload) => {
+    try {
+      const r = await fetch('api/stats.php', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify(payload)
+      });
+      const j = await r.json();
+      if (j && j.success && j.today) updateStatsUI(j.today);
+    } catch {}
+  };
+  (async () => { try { const r = await fetch('api/stats.php'); const j = await r.json(); if (j && j.success && j.today) updateStatsUI(j.today); } catch {} })();
+  track({ event: 'visit', page: location.pathname });
   // 底部工具栏与标题已移除，无需获取相关元素
 
   if (!player || !videoWrap) return; // 仅在视频区存在时执行
@@ -332,6 +370,7 @@ document.addEventListener('DOMContentLoaded', () => {
         pictureImg.src = url;
         picLastSwap = Date.now();
         if (galleryPanel) galleryPanel.style.setProperty('--pic-progress', '0');
+        track({ event: 'picture_show', page: location.pathname, url });
         if (pictureWrap.matches(':hover')) showPic();
       }
     })();
@@ -341,6 +380,7 @@ document.addEventListener('DOMContentLoaded', () => {
         pictureImg.src = url;
         picLastSwap = Date.now();
         if (galleryPanel) galleryPanel.style.setProperty('--pic-progress', '0');
+        track({ event: 'picture_show', page: location.pathname, url });
         if (pictureWrap.matches(':hover')) showPic();
       }
     }, picIntervalMs);
diff --git a/assets/style.css b/assets/style.css
index c68bd0f..b991b02 100644
--- a/assets/style.css
+++ b/assets/style.css
@@ -178,6 +178,22 @@ body {
 }
 .menu__controls input[type="checkbox"] { vertical-align: middle; margin-right: 6px; }
 
+.menu__stats {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  color: var(--red);
+}
+.menu__stats .stat {
+  background: #fff;
+  border: 1px solid var(--red);
+  border-radius: 999px;
+  padding: 6px 10px;
+  font-size: 12px;
+}
+.menu__stats .stat__label { opacity: .8; margin-right: 4px; }
+.menu__stats .stat__value { font-weight: 600; }
+
 video#player {
   width: 100%;
   flex: 1 1 auto;
diff --git a/index.php b/index.php
index 7e071de..ab76220 100644
--- a/index.php
+++ b/index.php
@@ -169,6 +169,12 @@
             <input type="checkbox" id="includeLocalToggle" /> 包含本地
           </label>
         </div>
+        <div class="menu__stats" id="menuStats" aria-label="统计">
+          <span class="stat"><span class="stat__label">流量</span> <span class="stat__value" id="statFlow">0</span></span>
+          <span class="stat"><span class="stat__label">访问</span> <span class="stat__value" id="statVisit">0</span></span>
+          <span class="stat"><span class="stat__label">视频</span> <span class="stat__value" id="statVideo">0</span></span>
+          <span class="stat"><span class="stat__label">图片</span> <span class="stat__value" id="statPic">0</span></span>
+        </div>
       </header>
 
       <main class="content">