diff --git a/seo_helpers.py b/seo_helpers.py
index 278d171..7e78926 100644
--- a/seo_helpers.py
+++ b/seo_helpers.py
@@ -177,144 +177,71 @@ def generate_vacancy_seo_tags(vacancy_data: Dict[str, Any], vacancy_id: int) ->
 def inject_seo_tags(html_template: str, seo_tags: Dict[str, str]) -> str:
     """
     Внедрение SEO-тегов в HTML шаблон
-
-    Args:
-        html_template: исходный HTML
-        seo_tags: словарь с SEO-тегами
-
-    Returns:
-        HTML с замененными SEO-тегами
     """
-    replacements = {
-        '<title id="pageTitle">Резюме | Rabota.Today</title>': f'<title>{seo_tags.get("title", "Rabota.Today")}</title>',
-        '<title id="pageTitle">Вакансия | Rabota.Today</title>': f'<title>{seo_tags.get("title", "Rabota.Today")}</title>',
-        '<meta name="description" id="metaDescription"': f'<meta name="description"',
-        '<meta name="keywords"': f'<meta name="keywords"',
-        '<meta property="og:title" id="ogTitle"': f'<meta property="og:title"',
-        '<meta property="og:description" id="ogDescription"': f'<meta property="og:description"',
-        '<meta property="og:url" id="ogUrl"': f'<meta property="og:url"',
-        '<meta property="profile:first_name" id="profileFirstName"': f'<meta property="profile:first_name"',
-        '<meta property="profile:last_name" id="profileLastName"': f'<meta property="profile:last_name"',
-        '<meta name="twitter:title" id="twitterTitle"': f'<meta name="twitter:title"',
-        '<meta name="twitter:description" id="twitterDescription"': f'<meta name="twitter:description"',
-        '<link rel="canonical" id="canonicalUrl"': f'<link rel="canonical"'
-    }
-
     result = html_template
 
-    # Заменяем общие теги
-    for old, new in replacements.items():
-        if old in result:
-            result = result.replace(old, new)
+    # Заменяем title
+    title_pattern = '<title id="pageTitle">.*?</title>'
+    result = re.sub(title_pattern, f'<title>{seo_tags.get("title", "Rabota.Today")}</title>', result)
 
-    # Вставляем конкретные значения
-    if 'description' in seo_tags:
-        desc_pattern = '<meta name="description" content="'
-        desc_start = result.find(desc_pattern)
-        if desc_start != -1:
-            desc_end = result.find('">', desc_start)
-            if desc_end != -1:
-                result = result[
-                             :desc_start] + f'<meta name="description" content="{seo_tags["description"]}">' + result[
-                             desc_end + 2:]
+    # Заменяем description
+    desc_pattern = '<meta name="description" id="metaDescription" content=".*?">'
+    result = re.sub(desc_pattern, f'<meta name="description" content="{seo_tags.get("description", "")}">', result)
 
-    if 'keywords' in seo_tags:
-        keywords_pattern = '<meta name="keywords" content="'
-        keywords_start = result.find(keywords_pattern)
-        if keywords_start != -1:
-            keywords_end = result.find('">', keywords_start)
-            if keywords_end != -1:
-                result = result[:keywords_start] + f'<meta name="keywords" content="{seo_tags["keywords"]}">' + result[
-                    keywords_end + 2:]
+    # Заменяем keywords
+    keywords_pattern = '<meta name="keywords" id="metaKeywords" content=".*?">'
+    result = re.sub(keywords_pattern, f'<meta name="keywords" content="{seo_tags.get("keywords", "")}">', result)
 
-    if 'og_title' in seo_tags:
-        og_title_pattern = '<meta property="og:title" content="'
-        og_title_start = result.find(og_title_pattern)
-        if og_title_start != -1:
-            og_title_end = result.find('">', og_title_start)
-            if og_title_end != -1:
-                result = result[
-                             :og_title_start] + f'<meta property="og:title" content="{seo_tags["og_title"]}">' + result[
-                             og_title_end + 2:]
+    # Заменяем og:title
+    og_title_pattern = '<meta property="og:title" id="ogTitle" content=".*?">'
+    result = re.sub(og_title_pattern, f'<meta property="og:title" content="{seo_tags.get("og_title", "")}">', result)
 
-    if 'og_description' in seo_tags:
-        og_desc_pattern = '<meta property="og:description" content="'
-        og_desc_start = result.find(og_desc_pattern)
-        if og_desc_start != -1:
-            og_desc_end = result.find('">', og_desc_start)
-            if og_desc_end != -1:
-                result = result[
-                             :og_desc_start] + f'<meta property="og:description" content="{seo_tags["og_description"]}">' + result[
-                             og_desc_end + 2:]
+    # Заменяем og:description
+    og_desc_pattern = '<meta property="og:description" id="ogDescription" content=".*?">'
+    result = re.sub(og_desc_pattern, f'<meta property="og:description" content="{seo_tags.get("og_description", "")}">',
+                    result)
 
-    if 'og_url' in seo_tags:
-        og_url_pattern = '<meta property="og:url" content="'
-        og_url_start = result.find(og_url_pattern)
-        if og_url_start != -1:
-            og_url_end = result.find('">', og_url_start)
-            if og_url_end != -1:
-                result = result[:og_url_start] + f'<meta property="og:url" content="{seo_tags["og_url"]}">' + result[
-                    og_url_end + 2:]
+    # Заменяем og:url
+    og_url_pattern = '<meta property="og:url" id="ogUrl" content=".*?">'
+    result = re.sub(og_url_pattern, f'<meta property="og:url" content="{seo_tags.get("og_url", "")}">', result)
 
+    # Заменяем profile:first_name
+    first_name_pattern = '<meta property="profile:first_name" id="profileFirstName" content=".*?">'
     if 'profile_first_name' in seo_tags:
-        first_name_pattern = '<meta property="profile:first_name" content="'
-        first_name_start = result.find(first_name_pattern)
-        if first_name_start != -1:
-            first_name_end = result.find('">', first_name_start)
-            if first_name_end != -1:
-                result = result[
-                             :first_name_start] + f'<meta property="profile:first_name" content="{seo_tags["profile_first_name"]}">' + result[
-                             first_name_end + 2:]
+        result = re.sub(first_name_pattern,
+                        f'<meta property="profile:first_name" content="{seo_tags.get("profile_first_name", "")}">',
+                        result)
 
+    # Заменяем profile:last_name
+    last_name_pattern = '<meta property="profile:last_name" id="profileLastName" content=".*?">'
     if 'profile_last_name' in seo_tags:
-        last_name_pattern = '<meta property="profile:last_name" content="'
-        last_name_start = result.find(last_name_pattern)
-        if last_name_start != -1:
-            last_name_end = result.find('">', last_name_start)
-            if last_name_end != -1:
-                result = result[
-                             :last_name_start] + f'<meta property="profile:last_name" content="{seo_tags["profile_last_name"]}">' + result[
-                             last_name_end + 2:]
+        result = re.sub(last_name_pattern,
+                        f'<meta property="profile:last_name" content="{seo_tags.get("profile_last_name", "")}">',
+                        result)
 
-    if 'twitter_title' in seo_tags:
-        twitter_title_pattern = '<meta name="twitter:title" content="'
-        twitter_title_start = result.find(twitter_title_pattern)
-        if twitter_title_start != -1:
-            twitter_title_end = result.find('">', twitter_title_start)
-            if twitter_title_end != -1:
-                result = result[
-                             :twitter_title_start] + f'<meta name="twitter:title" content="{seo_tags["twitter_title"]}">' + result[
-                             twitter_title_end + 2:]
+    # Заменяем twitter:title
+    twitter_title_pattern = '<meta name="twitter:title" id="twitterTitle" content=".*?">'
+    result = re.sub(twitter_title_pattern, f'<meta name="twitter:title" content="{seo_tags.get("twitter_title", "")}">',
+                    result)
 
-    if 'twitter_description' in seo_tags:
-        twitter_desc_pattern = '<meta name="twitter:description" content="'
-        twitter_desc_start = result.find(twitter_desc_pattern)
-        if twitter_desc_start != -1:
-            twitter_desc_end = result.find('">', twitter_desc_start)
-            if twitter_desc_end != -1:
-                result = result[
-                             :twitter_desc_start] + f'<meta name="twitter:description" content="{seo_tags["twitter_description"]}">' + result[
-                             twitter_desc_end + 2:]
+    # Заменяем twitter:description
+    twitter_desc_pattern = '<meta name="twitter:description" id="twitterDescription" content=".*?">'
+    result = re.sub(twitter_desc_pattern,
+                    f'<meta name="twitter:description" content="{seo_tags.get("twitter_description", "")}">', result)
 
-    if 'canonical_url' in seo_tags:
-        canonical_pattern = '<link rel="canonical" href="'
-        canonical_start = result.find(canonical_pattern)
-        if canonical_start != -1:
-            canonical_end = result.find('">', canonical_start)
-            if canonical_end != -1:
-                result = result[
-                             :canonical_start] + f'<link rel="canonical" href="{seo_tags["canonical_url"]}">' + result[
-                             canonical_end + 2:]
+    # Заменяем canonical
+    canonical_pattern = '<link rel="canonical" id="canonicalUrl" href=".*?">'
+    result = re.sub(canonical_pattern, f'<link rel="canonical" href="{seo_tags.get("canonical_url", "")}">', result)
 
-    # Вставляем структурированные данные
-    if 'structured_data' in seo_tags:
-        structured_pattern = '<script type="application/ld+json" id="structuredData">'
-        structured_start = result.find(structured_pattern)
-        if structured_start != -1:
-            structured_end = result.find('</script>', structured_start)
-            if structured_end != -1:
-                result = result[
-                             :structured_start] + f'<script type="application/ld+json">\n{seo_tags["structured_data"]}\n</script>\n<script type="application/ld+json" id="structuredData" style="display:none;">' + result[
-                             structured_end + 9:]
+    # Заменяем структурированные данные - заменяем весь блок от <script type="application/ld+json"> до </script>
+    structured_pattern = r'<script type="application/ld+json">.*?</script>'
+    # Находим и заменяем первый блок структурированных данных
+    result = re.sub(structured_pattern,
+                    f'<script type="application/ld+json">\n{seo_tags.get("structured_data", "{}")}\n</script>', result,
+                    count=1)
+
+    # Удаляем второй пустой блок, если он есть
+    empty_structured_pattern = r'<script type="application/ld\+json" id="structuredData" style="display:none;">\s*</script>'
+    result = re.sub(empty_structured_pattern, '', result)
 
     return result
\ No newline at end of file
diff --git a/templates/vacancy_detail.html b/templates/vacancy_detail.html
index abbda72..18e94e4 100644
--- a/templates/vacancy_detail.html
+++ b/templates/vacancy_detail.html
@@ -34,7 +34,7 @@
     <meta name="theme-color" content="#0b1c34">
 
     <!-- Структурированные данные (JSON-LD) будут заменены сервером -->
-    <script type="application/ld+json" id="structuredData">
+    <script type="application/ld+json">
     {
         "@context": "https://schema.org",
         "@type": "JobPosting",