    /* --- SHARED INDUSTRIAL THEME CSS (Same as Incoloy Page) --- */
    :root {
        --primary-color: #0b2c4d; /* Navy Blue */
        --secondary-color: #1a4a7a; /* Lighter Navy */
        --accent-color: #d35400;  /* Industrial Orange */
        --bg-light: #f4f7f6;
        --border-color: #e1e1e1;
        --text-main: #333;
        --text-muted: #555;
    }

    .category-page-wrapper {
        font-family: 'Helvetica Neue', Arial, sans-serif;
        max-width: 1200px;
        margin: 0 auto;
        color: var(--text-main);
        line-height: 1.6;
        padding: 20px 0;
    }

    /* --- HEADERS --- */
    .cat-header {
        text-align: center;
        margin-bottom: 50px;
        padding-bottom: 20px;
        border-bottom: 1px solid #eee;
    }

    .cat-header h1 {
        font-size: 2.5rem;
        color: var(--primary-color);
        margin-bottom: 15px;
    }

    .cat-header p {
        font-size: 1.1rem;
        color: var(--text-muted);
        max-width: 800px;
        margin: 0 auto;
    }

    .section-title {
        font-size: 1.8rem;
        color: var(--primary-color);
        margin-bottom: 25px;
        border-left: 5px solid var(--accent-color);
        padding-left: 15px;
        display: flex;
        align-items: center;
    }

    /* --- PRODUCT CARDS --- */
    .sub-grade-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
        gap: 30px;
        margin-bottom: 60px;
    }

    .grade-card {
        background: #fff;
        border: 1px solid var(--border-color);
        border-radius: 4px;
        display: flex;
        flex-direction: column;
        box-shadow: 0 4px 6px rgba(0,0,0,0.05);
        transition: transform 0.3s ease;
    }

    .grade-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        border-color: var(--accent-color);
    }

    .grade-img {
        height: 250px;
        background-color: #ddd;
        overflow: hidden;
    }
    
    .grade-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s;
    }
    
    .grade-card:hover .grade-img img { transform: scale(1.05); }

    .grade-content {
        padding: 30px;
        flex: 1;
        display: flex;
        flex-direction: column;
    }

    .grade-content h3 {
        color: var(--primary-color);
        font-size: 1.6rem;
        margin-top: 0;
    }

    .grade-content p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 20px; }

    .feature-tags {
        margin-bottom: 20px;
    }
    .feature-tags span {
        display: inline-block;
        background: #eef2f5;
        color: var(--secondary-color);
        padding: 4px 10px;
        border-radius: 4px;
        font-size: 0.8rem;
        margin-right: 5px;
        margin-bottom: 5px;
        font-weight: 600;
    }

    .view-grade-btn {
        margin-top: auto;
        display: inline-block;
        background: var(--primary-color);
        color: #fff;
        text-decoration: none;
        padding: 12px 25px;
        border-radius: 3px;
        text-align: center;
        transition: background 0.3s;
        font-weight: 600;
    }

    .view-grade-btn:hover { background: var(--accent-color); }

    /* --- INFO BLOCK --- */
    .info-block {
        background: #fff;
        padding: 40px;
        margin-bottom: 50px;
        border-radius: 5px;
        box-shadow: 0 5px 15px rgba(0,0,0,0.03);
    }

    /* --- COMPARISON TABLE --- */
    .compare-table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 50px;
        background: #fff;
        box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    }

    .compare-table th {
        background: var(--secondary-color);
        color: #fff;
        padding: 15px;
        text-align: left;
    }

    .compare-table td {
        padding: 15px;
        border-bottom: 1px solid #eee;
        color: #555;
    }
    
    .compare-table tr:hover td { background-color: #f9f9f9; }

    /* --- APP ICONS --- */
    .app-icons-row {
        display: flex;
        justify-content: space-around;
        flex-wrap: wrap;
        gap: 20px;
        margin-bottom: 60px;
        text-align: center;
    }
    
    .app-icon-box {
        flex: 1;
        min-width: 150px;
        padding: 20px;
        background: #fff;
        border: 1px solid #eee;
        border-radius: 5px;
    }
    
    .app-icon-symbol { font-size: 2.5rem; display: block; margin-bottom: 10px; }
    .app-icon-box h4 { margin: 0; color: var(--primary-color); }

    /* --- RESPONSIVE --- */
    @media (max-width: 768px) {
        .grade-card { flex-direction: column; }
    }
        h1 {
    text-align: center;
    margin-top: 30px;
}