diff --git a/app/Config/Routes.php b/app/Config/Routes.php
index cd32c2b..0259e17 100644
--- a/app/Config/Routes.php
+++ b/app/Config/Routes.php
@@ -60,6 +60,7 @@ $routes->get('bag/help', 'Bag::help');
 // 사용자 매뉴얼(설명서) — 로그인 사용자 전용
 $routes->group('bag', ['filter' => 'loginAuth'], static function ($routes): void {
     $routes->get('manual', 'Bag::manual');
+    $routes->get('manual/search', 'Bag::manualSearch'); // (:segment) 보다 먼저
     $routes->get('manual/(:segment)', 'Bag::manualPage/$1');
 });
 
diff --git a/app/Controllers/Bag.php b/app/Controllers/Bag.php
index 896eda4..d048fbc 100644
--- a/app/Controllers/Bag.php
+++ b/app/Controllers/Bag.php
@@ -3588,6 +3588,17 @@ SQL);
         return redirect()->to($url);
     }
 
+    /**
+     * 사용자 매뉴얼 전체 검색 (JSON). q 와 일치하는 페이지·스니펫 목록.
+     */
+    public function manualSearch(): \CodeIgniter\HTTP\ResponseInterface
+    {
+        $q       = (string) ($this->request->getGet('q') ?? '');
+        $results = (new \App\Libraries\ManualRenderer())->search($q);
+
+        return $this->response->setJSON(['q' => $q, 'results' => $results]);
+    }
+
     /**
      * 사용자 매뉴얼 개별 페이지 (slug = 화이트리스트). 미등록 slug 는 404.
      */
diff --git a/app/Libraries/ManualRenderer.php b/app/Libraries/ManualRenderer.php
index 665d9a2..e0b3f89 100644
--- a/app/Libraries/ManualRenderer.php
+++ b/app/Libraries/ManualRenderer.php
@@ -58,6 +58,61 @@ class ManualRenderer
         return $this->config->pages[$slug] ?? null;
     }
 
+    /**
+     * 페이지 본문을 일반 텍스트로(검색용). 미존재 시 ''.
+     */
+    public function plainText(string $slug): string
+    {
+        $html = $this->render($slug);
+        if ($html === null || $html === '') {
+            return '';
+        }
+        $text = html_entity_decode(strip_tags($html), ENT_QUOTES | ENT_HTML5, 'UTF-8');
+
+        return trim((string) preg_replace('/\s+/u', ' ', $text));
+    }
+
+    /**
+     * 모든 매뉴얼 페이지 본문에서 질의어를 찾아 결과 반환(일치 많은 순).
+     *
+     * @return list<array{slug:string,title:string,snippet:string,hits:int}>
+     */
+    public function search(string $q): array
+    {
+        $q = trim($q);
+        if ($q === '' || mb_strlen($q) < 1) {
+            return [];
+        }
+        $needle = mb_strtolower($q);
+        $out     = [];
+        foreach ($this->pages() as $slug => $page) {
+            $text = $this->plainText((string) $slug);
+            if ($text === '') {
+                continue;
+            }
+            $hay = mb_strtolower($text);
+            $pos = mb_strpos($hay, $needle);
+            if ($pos === false) {
+                continue;
+            }
+            $hits  = mb_substr_count($hay, $needle);
+            $start = max(0, $pos - 30);
+            $snippet = mb_substr($text, $start, 100);
+            if ($start > 0) {
+                $snippet = '…' . $snippet;
+            }
+            $out[] = [
+                'slug'    => (string) $slug,
+                'title'   => (string) $page['title'],
+                'snippet' => trim($snippet),
+                'hits'    => $hits,
+            ];
+        }
+        usort($out, static fn ($a, $b): int => $b['hits'] <=> $a['hits']);
+
+        return $out;
+    }
+
     /**
      * slug 페이지를 HTML 로 변환해 반환. 미등록 slug·파일 없음·변환 실패 시 null.
      */
diff --git a/app/Views/bag/layout/workspace.php b/app/Views/bag/layout/workspace.php
index e809b31..d9ea06a 100644
--- a/app/Views/bag/layout/workspace.php
+++ b/app/Views/bag/layout/workspace.php
@@ -105,6 +105,17 @@ if ($effectiveLgIdx) {
       catch (e) { return u + (u.indexOf('?') >= 0 ? '&' : '?') + 'embed=1'; }
     }
 
+    var STORE_KEY = 'jrj_ws_tabs';
+    function persist() {
+      try {
+        var data = {
+          tabs: order.map(function (id) { return { url: tabs[id].url, title: tabs[id].title }; }),
+          active: activeId
+        };
+        sessionStorage.setItem(STORE_KEY, JSON.stringify(data));
+      } catch (e) {}
+    }
+
     function activate(id) {
       if (!tabs[id]) return;
       activeId = id;
@@ -113,6 +124,7 @@ if ($effectiveLgIdx) {
         tabs[k].btn.classList.toggle('active', k === id);
       });
       if (empty) empty.style.display = 'none';
+      persist();
     }
 
     function reloadTab(id) {
@@ -132,6 +144,7 @@ if ($effectiveLgIdx) {
         var next = order[order.length - 1];
         if (next) activate(next); else { activeId = null; if (empty) empty.style.display = 'flex'; }
       }
+      persist();
     }
 
     function openTab(url, title) {
@@ -194,17 +207,18 @@ if ($effectiveLgIdx) {
       });
     });
 
-    // 브라우저 전체 새로고침/이탈 시 경고 (기본 대시보드 외 탭이 열려 있을 때)
-    window.addEventListener('beforeunload', function (e) {
-      if (order.length > 1) {
-        e.preventDefault();
-        e.returnValue = '열어 둔 탭이 모두 닫힙니다. 계속할까요?';
-        return e.returnValue;
+    // 첫 화면: 세션에 저장된 탭이 있으면 복원(관리자 페이지 등 전체 이동 후 복귀·새로고침 대응),
+    // 없으면 대시보드 탭 자동 열기
+    (function restore() {
+      var saved = null;
+      try { saved = JSON.parse(sessionStorage.getItem(STORE_KEY) || 'null'); } catch (e) {}
+      if (saved && saved.tabs && saved.tabs.length) {
+        saved.tabs.forEach(function (t) { if (t && t.url) openTab(t.url, t.title); });
+        if (saved.active && tabs[saved.active]) activate(saved.active);
+        return;
       }
-    });
-
-    // 첫 화면: 대시보드 탭 자동 열기
-    openTab('<?= base_url('/') ?>', '업무 현황');
+      openTab('<?= base_url('/') ?>', '업무 현황');
+    })();
   })();
   </script>
 </body>
diff --git a/app/Views/bag/manual.php b/app/Views/bag/manual.php
index 3e61647..29d4d4b 100644
--- a/app/Views/bag/manual.php
+++ b/app/Views/bag/manual.php
@@ -17,6 +17,7 @@ $slugs    = array_keys($pages);
 $pos      = array_search($current, $slugs, true);
 $prevSlug = ($pos !== false && $pos > 0) ? $slugs[$pos - 1] : null;
 $nextSlug = ($pos !== false && $pos < count($slugs) - 1) ? $slugs[$pos + 1] : null;
+$searchQ  = (string) (service('request')->getGet('q') ?? '');
 ?>
 <style>
 /* 매뉴얼 본문 스코프 스타일 (사이트 레이아웃 Tailwind 에 typography 플러그인 없음) */
@@ -54,6 +55,16 @@ $nextSlug = ($pos !== false && $pos < count($slugs) - 1) ? $slugs[$pos + 1] : nu
   <!-- 좌측 목차 -->
   <nav class="manual-toc no-print w-56 shrink-0 sticky top-0 self-start">
     <div class="bg-title-bar text-white text-sm font-bold px-3 py-2 rounded-t">사용자 매뉴얼</div>
+    <!-- 매뉴얼 전체 검색 -->
+    <div class="manual-search" style="position:relative;padding:6px;border:1px solid #d1d5db;border-top:0;background:#fff;">
+      <div style="position:relative;">
+        <input id="manualSearchInput" type="search" autocomplete="off" placeholder="매뉴얼 검색 (예: LOT, 불출)"
+               value="<?= esc($searchQ, 'attr') ?>"
+               class="w-full border border-gray-300 rounded px-2 py-1.5 pr-7 text-xs focus:outline-none focus:ring-2 focus:ring-[#243a5e]/30"/>
+        <i class="fa-solid fa-magnifying-glass" style="position:absolute;right:8px;top:50%;transform:translateY(-50%);color:#9ca3af;font-size:11px;"></i>
+      </div>
+      <ul id="manualSearchResults" class="hidden" style="position:absolute;left:6px;right:6px;top:100%;z-index:40;max-height:300px;overflow-y:auto;background:#fff;border:1px solid #d1d5db;border-radius:6px;box-shadow:0 6px 16px rgba(0,0,0,.12);margin:2px 0 0;padding:0;list-style:none;"></ul>
+    </div>
     <ul class="border border-t-0 border-gray-300 rounded-b divide-y divide-gray-100 bg-white text-sm">
       <?php foreach ($pages as $slug => $p): ?>
       <li>
@@ -90,3 +101,75 @@ $nextSlug = ($pos !== false && $pos < count($slugs) - 1) ? $slugs[$pos + 1] : nu
     </div>
   </div>
 </div>
+
+<script>
+(function () {
+  // 현재 출처 기준 경로(앱 baseURL 호스트와 접속 호스트가 달라도 동일 출처로 요청)
+  var SEARCH_URL = location.origin + <?= json_encode((string) parse_url(base_url('bag/manual/search'), PHP_URL_PATH), JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_QUOT) ?>;
+  var BASE = location.origin + <?= json_encode((string) parse_url(base_url('bag/manual/'), PHP_URL_PATH), JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_QUOT) ?>;
+  var Q0 = <?= json_encode($searchQ, JSON_UNESCAPED_UNICODE | JSON_HEX_TAG | JSON_HEX_AMP | JSON_HEX_APOS) ?>;
+  var input = document.getElementById('manualSearchInput');
+  var box = document.getElementById('manualSearchResults');
+
+  function esc(s) { return String(s || '').replace(/[&<>]/g, function (c) { return { '&': '&amp;', '<': '&lt;', '>': '&gt;' }[c]; }); }
+
+  function doSearch(q) {
+    q = (q || '').trim();
+    if (!q) { box.classList.add('hidden'); box.innerHTML = ''; return; }
+    fetch(SEARCH_URL + '?q=' + encodeURIComponent(q))
+      .then(function (r) { return r.json(); })
+      .then(function (d) {
+        var res = (d && d.results) || [];
+        if (!res.length) {
+          box.innerHTML = '<li style="padding:7px 10px;color:#9ca3af;font-size:12px;">검색 결과가 없습니다.</li>';
+          box.classList.remove('hidden'); return;
+        }
+        box.innerHTML = res.map(function (m) {
+          return '<li><a href="' + BASE + encodeURIComponent(m.slug) + '?q=' + encodeURIComponent(q) +
+            '" style="display:block;padding:7px 10px;border-bottom:1px solid #f1f5f9;text-decoration:none;">' +
+            '<span style="font-size:12px;font-weight:700;color:#1a2b4b;">' + esc(m.title) +
+            ' <span style="color:#94a3b8;font-weight:400;">(' + (m.hits || 1) + ')</span></span>' +
+            '<span style="display:block;font-size:11px;color:#64748b;margin-top:2px;line-height:1.4;">' + esc(m.snippet) + '</span></a></li>';
+        }).join('');
+        box.classList.remove('hidden');
+      })
+      .catch(function () {});
+  }
+
+  if (input) {
+    var timer = null;
+    input.addEventListener('input', function () { clearTimeout(timer); var v = input.value; timer = setTimeout(function () { doSearch(v); }, 250); });
+    input.addEventListener('focus', function () { if (input.value.trim()) doSearch(input.value); });
+    document.addEventListener('click', function (e) { if (!e.target.closest('.manual-search')) box.classList.add('hidden'); });
+  }
+
+  // 현재 페이지 본문에서 검색어 하이라이트
+  if (Q0 && Q0.trim()) {
+    var prose = document.querySelector('.manual-prose');
+    if (prose) {
+      var needle = Q0.trim().toLowerCase();
+      var walker = document.createTreeWalker(prose, NodeFilter.SHOW_TEXT, null);
+      var nodes = [], first = null;
+      while (walker.nextNode()) { nodes.push(walker.currentNode); }
+      nodes.forEach(function (node) {
+        var t = node.nodeValue, lt = t.toLowerCase(), idx = lt.indexOf(needle);
+        if (idx < 0) return;
+        var frag = document.createDocumentFragment(), last = 0;
+        while (idx >= 0) {
+          frag.appendChild(document.createTextNode(t.slice(last, idx)));
+          var mark = document.createElement('mark');
+          mark.textContent = t.slice(idx, idx + needle.length);
+          mark.style.background = '#fde68a';
+          frag.appendChild(mark);
+          if (!first) first = mark;
+          last = idx + needle.length;
+          idx = lt.indexOf(needle, last);
+        }
+        frag.appendChild(document.createTextNode(t.slice(last)));
+        node.parentNode.replaceChild(frag, node);
+      });
+      if (first) { try { first.scrollIntoView({ block: 'center' }); } catch (e) {} }
+    }
+  }
+})();
+</script>
diff --git a/app/Views/home/_dashboard_gov_portal_nav_script_base.php b/app/Views/home/_dashboard_gov_portal_nav_script_base.php
index 260472c..11f564d 100644
--- a/app/Views/home/_dashboard_gov_portal_nav_script_base.php
+++ b/app/Views/home/_dashboard_gov_portal_nav_script_base.php
@@ -28,7 +28,7 @@
         var on = activeChildHref ? (chHref === activeChildHref) : (ci === 0);
         if (child.href) {
           li.innerHTML = '<a href="' + child.url + '" class="' + (on ? 'active' : '') + '">' +
-            '<span class="menu-ico">' + (on ? '×' : '+') + '</span>' + child.name + '</a>';
+            '<span class="menu-ico">' + (on ? '▸' : '·') + '</span>' + child.name + '</a>';
         } else {
           li.innerHTML = '<span class="menu-sub" style="opacity:.65;"><span class="menu-ico">+</span>' + child.name + '</span>';
         }
diff --git a/app/Views/home/_dashboard_gov_portal_sidebar.php b/app/Views/home/_dashboard_gov_portal_sidebar.php
index 8260d0a..1f0de98 100644
--- a/app/Views/home/_dashboard_gov_portal_sidebar.php
+++ b/app/Views/home/_dashboard_gov_portal_sidebar.php
@@ -22,12 +22,12 @@ $activeChildHref = strtolower(ltrim((string) ($govActiveChildHref ?? ''), '/'));
         <li>
           <?php if ($child['href'] !== ''): ?>
           <a href="<?= esc($child['url']) ?>" class="<?= $isChildActive ? 'active' : '' ?>">
-            <span class="menu-ico"><?= $isChildActive ? '×' : '+' ?></span>
+            <span class="menu-ico"><?= $isChildActive ? '▸' : '·' ?></span>
             <?= esc($child['name']) ?>
           </a>
           <?php else: ?>
           <span class="menu-sub" style="opacity:.65;cursor:default;">
-            <span class="menu-ico">+</span><?= esc($child['name']) ?>
+            <span class="menu-ico">·</span><?= esc($child['name']) ?>
           </span>
           <?php endif; ?>
         </li>
@@ -35,7 +35,7 @@ $activeChildHref = strtolower(ltrim((string) ($govActiveChildHref ?? ''), '/'));
       <?php elseif ($activeParent['href'] !== ''): ?>
         <li>
           <a href="<?= esc($activeParent['url']) ?>" class="active">
-            <span class="menu-ico">×</span><?= esc($activeParent['name']) ?>
+            <span class="menu-ico">▸</span><?= esc($activeParent['name']) ?>
           </a>
         </li>
       <?php endif; ?>
diff --git a/e2e/workspace.spec.js b/e2e/workspace.spec.js
index e77f4e4..ee08a77 100644
--- a/e2e/workspace.spec.js
+++ b/e2e/workspace.spec.js
@@ -39,4 +39,31 @@ test.describe('워크스페이스 탭', () => {
     await page.waitForTimeout(300);
     await expect(page.locator('.ws-tab')).toHaveCount(1);
   });
+
+  test('관리자 페이지로 이동 후 복귀해도 열어둔 탭 유지', async ({ page }) => {
+    await login(page, 'admin');
+    await page.goto('/admin/select-local-government');
+    await page.evaluate(() => {
+      const r = document.querySelector('input[name="lg_idx"][value="1"]');
+      if (r) { r.checked = true; r.form.submit(); }
+    });
+    await page.waitForTimeout(700);
+
+    await page.goto('/workspace');
+    await page.waitForTimeout(2500);
+
+    // 소메뉴를 탭으로 추가 → 탭 2개
+    await page.locator('.sidebar .my-menu-list a').first().click();
+    await page.waitForTimeout(1500);
+    await expect(page.locator('.ws-tab')).toHaveCount(2);
+
+    // 관리자 페이지로 전체 이동(워크스페이스를 떠남)
+    await page.goto('/admin');
+    await page.waitForTimeout(800);
+
+    // 다시 워크스페이스로 복귀 → 세션에서 탭 복원
+    await page.goto('/workspace');
+    await page.waitForTimeout(2500);
+    await expect(page.locator('.ws-tab')).toHaveCount(2);
+  });
 });