.isolated-article .article-container {
    max-width: 100%;
    margin: 20px auto;
    padding: 30px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.isolated-article .article-container * {
    box-sizing: border-box;
}

.isolated-article .article-container h1 {
    color: #2c3e50;
    font-size: 32px;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 3px solid #3498db;
    word-wrap: break-word;
    text-align: center;
}

.isolated-article .article-container h2 {
    color: #2c3e50;
    font-size: 26px;
    margin: 30px 0 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #e74c3c;
    word-wrap: break-word;
}

.isolated-article .article-container h3 {
    color: #2c3e50;
    font-size: 20px;
    margin: 25px 0 15px;
    word-wrap: break-word;
}

.isolated-article .article-container p {
    margin-bottom: 20px;
    font-size: 17px;
    text-align: justify;
    word-wrap: break-word;
}

.isolated-article .article-container ul {
    margin: 20px 0;
    padding-left: 25px;
}

.isolated-article .article-container li {
    margin-bottom: 12px;
    font-size: 16px;
    position: relative;
    word-wrap: break-word;
}

.isolated-article .article-container li::before {
    content: "•";
    color: #3498db;
    font-weight: bold;
    display: inline-block;
    width: 1em;
    margin-left: -1em;
}

.isolated-article .article-container strong {
    color: #2c3e50;
}

.isolated-article .article-note {
    background-color: #e8f4fc;
    border-left: 4px solid #3498db;
    padding: 15px 20px;
    margin: 20px 0;
    border-radius: 4px;
}

.isolated-article .info-card {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
    border-left: 4px solid #3498db;
}

.isolated-article .table-container {
    width: 100%;
    overflow-x: auto;
    margin: 25px 0;
    -webkit-overflow-scrolling: touch;
}

.isolated-article .table {
    width: 100%;
    border-collapse: collapse;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    overflow: hidden;
    font-size: 15px;
}

.isolated-article .table th {
    background: linear-gradient(to bottom, #3498db, #2980b9);
    color: white;
    padding: 14px 10px;
    text-align: left;
    font-weight: 600;
}

.isolated-article .table td {
    padding: 12px 10px;
    border: 1px solid #e0e0e0;
    word-wrap: break-word;
}

.isolated-article .table tr:nth-child(even) {
    background-color: #f9f9f9;
}

.isolated-article .table tr:hover {
    background-color: #f1f1f1;
}

.isolated-article .product-highlight {
    background: linear-gradient(135deg, #e3f2fd, #f3e5f5);
    padding: 25px;
    border-radius: 10px;
    margin: 25px 0;
    border-left: 5px solid #3498db;
}

.isolated-article .specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin: 25px 0;
}

.isolated-article .spec-card {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid #3498db;
}

.isolated-article .features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.isolated-article .feature-item {
    background: linear-gradient(135deg, #ffffff, #f8f9fa);
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid #3498db;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.isolated-article .feature-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.12);
}

.isolated-article .feature-item h3 {
    color: #2c3e50;
    font-size: 18px;
    margin-bottom: 10px;
    border-bottom: 2px solid #e74c3c;
    padding-bottom: 5px;
}

.isolated-article .feature-item p {
    color: #555;
    font-size: 15px;
    line-height: 1.5;
    margin: 0;
}

.isolated-article .benefits-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 15px;
    margin: 25px 0;
}

.isolated-article .benefit-item {
    background: #f0f7ff;
    padding: 15px;
    border-radius: 6px;
    border-left: 3px solid #3498db;
}

.isolated-article .benefit-item strong {
    color: #2c3e50;
    display: block;
    margin-bottom: 5px;
}

.isolated-article .product-image-oil {
    width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 20px 0;
    display: block;
    box-sizing: border-box;
    object-fit: contain;
}

.isolated-article .table-container.sticky-table {
    max-height: 600px; /* Ограничение высоты таблицы */
    overflow: auto; /* Включение прокрутки по вертикали и горизонтали */
    position: relative;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    -webkit-overflow-scrolling: touch; /* Плавная прокрутка на мобильных */
}

.isolated-article .sticky-table .table {
    margin: 0;
    border-radius: 0;
    width: 100%;
    min-width: 1000px; /* Обеспечивает горизонтальную прокрутку для широких таблиц */
    border-collapse: separate; /* Улучшает рендеринг sticky элементов */
}

.isolated-article .sticky-table thead th {
    position: sticky;
    position: -webkit-sticky;
    top: 0;
    background: linear-gradient(to bottom, #3498db, #2980b9);
    color: white;
    z-index: 10;
    box-shadow: 0 2px 2px -1px rgba(0, 0, 0, 0.1);
}

.isolated-article .sticky-table tbody td:first-child,
.isolated-article .sticky-table thead th:first-child {
    position: sticky;
    left: 0;
    background: #f8f9fa; /* Фон для первой колонки */
    z-index: 5;
    box-shadow: 2px 0 2px -1px rgba(0, 0, 0, 0.1);
}

.isolated-article .sticky-table thead th:first-child {
    background: linear-gradient(to bottom, #3498db, #2980b9); /* Фон шапки для первой ячейки */
    z-index: 15; /* Выше других sticky элементов */
}

.isolated-article .sticky-table th,
.isolated-article .sticky-table td:first-child {
    background-color: inherit; /* Предотвращает прозрачность */
}

/* Адаптивность для мобильных устройств */
@media (max-width: 768px) {
    .isolated-article .article-container {
        padding: 20px;
        margin: 10px;
    }
    
    .isolated-article .article-container h1 {
        font-size: 26px;
    }
    
    .isolated-article .article-container h2 {
        font-size: 22px;
    }
    
    .isolated-article .article-container h3 {
        font-size: 19px;
    }
    
    .isolated-article .article-container p {
        font-size: 16px;
        text-align: left;
    }
    
    .isolated-article .article-container ul {
        padding-left: 20px;
    }
    
    .isolated-article .article-container li {
        font-size: 15px;
    }
    
    .isolated-article .table {
        font-size: 14px;
    }
    
    .isolated-article .table th, 
    .isolated-article .table td {
        padding: 10px 8px;
    }
    
    .isolated-article .specs-grid,
    .isolated-article .features-list,
    .isolated-article .benefits-list {
        grid-template-columns: 1fr;
    }
    
    .isolated-article .features-list {
        gap: 15px;
    }
    
    .isolated-article .feature-item {
        padding: 15px;
    }
    
    .isolated-article .feature-item h3 {
        font-size: 17px;
    }
    
    .isolated-article .feature-item p {
        font-size: 14px;
    }
    
    .isolated-article .table-container.sticky-table {
        max-height: 400px; /* Меньшая высота на мобильных */
        font-size: 12px;
    }
    
    .isolated-article .sticky-table .table th,
    .isolated-article .sticky-table .table td {
        padding: 8px 6px;
        white-space: nowrap; /* Предотвращает перенос текста */
    }
}

@media (max-width: 480px) {
    .isolated-article .article-container {
        padding: 15px;
    }
    
    .isolated-article .article-container h1 {
        font-size: 24px;
    }
    
    .isolated-article .article-container h2 {
        font-size: 20px;
    }
    
    .isolated-article .article-container h3 {
        font-size: 18px;
    }
    
    .isolated-article .article-container p {
        font-size: 15px;
    }
    
    .isolated-article .article-container li {
        font-size: 14px;
    }
    
    .isolated-article .table {
        font-size: 13px;
    }
    
    .isolated-article .table th, 
    .isolated-article .table td {
        padding: 8px 6px;
    }
    
    .isolated-article .feature-item {
        padding: 12px;
    }
    
    .isolated-article .feature-item h3 {
        font-size: 16px;
    }
    
    .isolated-article .feature-item p {
        font-size: 13px;
    }
    
    .isolated-article .table-container.sticky-table {
        max-height: 300px;
        font-size: 11px;
    }
    
    .isolated-article .sticky-table .table th,
    .isolated-article .sticky-table .table td {
        padding: 6px 4px;
    }
}

.chart-block {
  position: relative;
  width: 100%;
  min-height: 350px;
  background: #fff;
  border: 1px solid #eee;
  border-radius: 10px;
  padding: 10px;
  overflow: hidden;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}

@media (max-width: 768px) {
  .chart-block {
    min-height: 300px;
    padding: 6px;
  }
}

@media (max-width: 480px) {
  .chart-block {
    min-height: 250px;
  }
}