/* --- H-LIFT MODERN INDUSTRIAL THEME --- */
    :root {
        --brand-primary: #1A365D; /* Deep Slate Blue */
        --brand-accent: #FF6B00;  /* Vibrant Safety Orange */
        --text-main: #2D3748;
        --text-muted: #718096;
        --bg-page: #F7FAFC;
        --bg-card: #FFFFFF;
        --border-color: #E2E8F0;
        --danger-red: #E53E3E;
        --danger-bg: #FFF5F5;
        --warning-yellow: #D69E2E;
        --warning-bg: #FFFFF0;
        --info-blue: #3182CE;
        --info-bg: #EBF8FF;
        --radius-md: 10px;
        --radius-lg: 16px;
        --shadow-sm: 0 2px 4px rgba(0,0,0,0.02);
        --shadow-md: 0 4px 12px rgba(0,0,0,0.06);
    }

    /* Global Typography */
    * { box-sizing: border-box; }
    body {
        font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
        font-size: 16px;
        color: var(--text-main);
        line-height: 1.6;
        margin: 0;
        padding: 20px;
        background-color: var(--bg-page);
    }

    .article-container {
        max-width: 1200px;
        margin: 0 auto;
    }

    /* --- 1. HERO HEADER --- */
    .product-header {
        background: var(--bg-card);
        padding: 40px;
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-sm);
        margin-bottom: 40px;
        border-top: 5px solid var(--brand-primary);
        text-align: center;
    }

    .product-header h1 {
        font-size: 36px;
        color: var(--brand-primary);
        margin: 0 0 10px 0;
        font-weight: 800;
        letter-spacing: -0.5px;
    }

    .product-header .subtitle {
        font-size: 18px;
        color: var(--brand-accent);
        font-weight: 600;
    }

    /* --- 2. LAYOUT GRID --- */
    .content-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 30px;
        margin-bottom: 50px;
    }

    @media (min-width: 992px) {
        .content-grid { grid-template-columns: 3fr 2fr; }
    }

    /* --- 3. FEATURES LIST --- */
    .features-box {
        background: var(--bg-card);
        padding: 30px;
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--border-color);
        border-top: 4px solid var(--brand-accent);
    }

    .features-box h2 {
        color: var(--brand-primary);
        font-size: 22px;
        margin-top: 0;
        margin-bottom: 20px;
    }

    .features-list {
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .features-list > li {
        margin-bottom: 20px;
        position: relative;
        padding-left: 32px;
        color: var(--text-main);
    }

    .features-list > li::before {
        content: "■";
        color: var(--brand-accent);
        font-size: 14px;
        position: absolute;
        left: 0;
        top: 2px;
    }

    .features-list strong {
        color: var(--brand-primary);
        font-size: 18px;
        display: block;
        margin-bottom: 5px;
    }

    .sub-list {
        list-style: none;
        margin-top: 10px;
        padding-left: 0;
    }

    .sub-list li {
        margin-bottom: 8px;
        padding-left: 20px;
        position: relative;
        color: var(--text-muted);
        font-size: 15px;
    }
    
    .sub-list li::before {
        content: "→";
        color: var(--info-blue);
        position: absolute;
        left: 0;
        top: 0;
    }

    /* --- 4. GENERAL DATA BOX --- */
    .data-box {
        background: var(--info-bg);
        border-left: 5px solid var(--info-blue);
        padding: 25px;
        border-radius: var(--radius-md);
        margin-top: 30px;
    }

    .data-box h3 {
        margin-top: 0;
        color: var(--brand-primary);
        font-size: 20px;
        margin-bottom: 15px;
    }

    .data-box ul {
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .data-box li {
        padding: 8px 0;
        border-bottom: 1px solid #BEE3F8;
        font-size: 15px;
        color: var(--brand-primary);
    }
    .data-box li:last-child { border-bottom: none; }
    .data-box strong { font-weight: 700; color: var(--brand-primary); }

    /* --- 5. PRODUCT IMAGE --- */
    .image-wrapper {
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        padding: 15px;
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-md);
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .image-wrapper img {
        width: 100%;
        max-width: 450px;
        height: auto;
        border-radius: 8px;
    }

    /* --- 6. TECHNICAL TABLE SECTION --- */
    .section-title {
        font-size: 24px;
        color: var(--brand-primary);
        margin-bottom: 20px;
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .section-title::before {
        content: "";
        width: 6px;
        height: 24px;
        background: var(--brand-primary);
        border-radius: 4px;
    }

    .diagram-note {
        text-align: left;
        margin-bottom: 20px;
        color: var(--text-muted);
        background: var(--bg-card);
        padding: 15px;
        border-radius: var(--radius-md);
        border: 1px dashed var(--border-color);
        font-size: 14px;
    }

    /* STRICTLY CENTERED TABLE STYLES */
    .table-container {
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-md);
        border: 1px solid var(--border-color);
        background: var(--bg-card);
        margin-bottom: 40px;
    }

    table {
        width: 100%;
        border-collapse: collapse;
        min-width: 1400px; /* Ensures scroll on smaller screens */
        font-size: 14px;
    }

    th, td {
        padding: 12px 10px;
        /* MANDATORY CENTERING */
        text-align: center !important;
        vertical-align: middle !important;
        border-bottom: 1px solid var(--border-color);
        border-right: 1px solid var(--border-color);
    }

    th {
        background-color: var(--brand-primary);
        color: #ffffff;
        font-weight: 600;
        border: 1px solid rgba(255,255,255,0.1);
        white-space: nowrap;
    }

    td {
        color: var(--text-main);
    }

    tbody tr:hover { background-color: #F0F4F8; }
    tbody td:first-child {
        font-weight: 700;
        color: var(--brand-primary);
        background-color: #F7FAFC;
    }

    /* --- SEO KEYWORDS BLOCK --- */
    .seo-keywords {
        margin-top: 40px;
        padding: 15px;
        background-color: var(--bg-card);
        border-left: 4px solid var(--brand-accent);
        font-size: 13px;
        color: var(--text-muted);
        border-radius: 4px;
    }