:root {
            --site-blue: #1a1a7c;
            --site-lime: #BFFF00;
            --bg-white: #ffffff;
            --text-dark: #333333;
            --text-gray: #666666;
            --light-gray: #f9f9f9;
            --font-main: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
        }

        body {
            background-color: var(--bg-white);
            color: var(--text-dark);
            font-family: var(--font-main);
            margin: 0;
            padding: 0;
            line-height: 1.6;
        }

        .container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 60px 20px;
            box-sizing: border-box;
        }

        .section-title {
            font-size: 32px;
            color: var(--site-blue);
            border-left: 5px solid var(--site-lime);
            padding-left: 15px;
            margin: 60px 0 40px 0;
            text-transform: uppercase;
            font-weight: 800;
        }

        /* --- 1. Customization Advantage --- */
        .grid-2 {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            align-items: center;
            margin-bottom: 80px;
        }
        .col { flex: 1; min-width: 320px; }

        .feature-item {
            margin-bottom: 25px;
            padding: 20px;
            background: var(--light-gray);
            border-radius: 8px;
            border-bottom: 3px solid var(--site-lime);
        }
        .feature-item h4 { margin: 0 0 10px 0; color: var(--site-blue); font-size: 20px; }
        .feature-item p { margin: 0; color: var(--text-gray); font-size: 15px; }

        .product-link { display: block; text-decoration: none; overflow: hidden; border-radius: 12px; }
        .product-img-wrap {
            width: 100%;
            height: auto;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            transition: transform 0.4s ease;
            cursor: pointer;
            display: block;
        }
        .product-img-wrap:hover { transform: scale(1.03); }

        /* --- 2. Specifications Table --- */
        .spec-table-wrap { overflow-x: auto; margin-bottom: 80px; width: 100%; }
        table {
            width: 100%;
            border-collapse: collapse;
            background: white;
            box-shadow: 0 4px 15px rgba(0,0,0,0.05);
        }
        th {
            background-color: var(--site-lime);
            color: var(--site-blue);
            text-align: left;
            padding: 15px;
            font-size: 16px;
        }
        td {
            padding: 15px;
            border-bottom: 1px solid #eee;
            font-size: 15px;
        }
        tr:nth-child(even) { background-color: var(--light-gray); }
        .spec-attr { font-weight: bold; color: var(--site-blue); width: 25%; }

        /* --- 3. Technical Backing --- */
        .tech-box {
            display: flex;
            align-items: center;
            background: var(--site-blue);
            color: white;
            padding: 40px;
            border-radius: 12px;
            margin-bottom: 80px;
            gap: 40px;
        }
        .tech-cert { font-size: 72px; font-weight: 900; color: var(--site-lime); line-height: 1; }
        .tech-info h4 { font-size: 24px; margin: 0 0 15px 0; color: var(--site-lime); }

        /* --- 4. Service Flow --- */
        .timeline {
            display: flex;
            justify-content: space-between;
            margin-bottom: 60px;
            overflow-x: auto;
            padding-bottom: 20px;
        }
        .step {
            flex: 1;
            min-width: 140px;
            text-align: center;
            position: relative;
            padding: 0 10px;
        }
        .step::after {
            content: '';
            position: absolute;
            top: 45px;
            left: 60%;
            width: 80%;
            height: 2px;
            background: #ddd;
            z-index: 1;
        }
        .step:last-child::after { display: none; }
        .dot {
            width: 16px;
            height: 16px;
            background: var(--site-lime);
            border: 4px solid white;
            border-radius: 50%;
            margin: 25px auto 15px;
            position: relative;
            z-index: 2;
            box-shadow: 0 0 0 2px var(--site-lime);
        }
        .step-name { font-weight: bold; color: var(--site-blue); font-size: 14px; display: block; height: 40px; }
        .step-desc { font-size: 12px; color: var(--text-gray); margin-top: 10px; line-height: 1.3; }

        /* --- 5. After-Sales Cards --- */
        .cards-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            margin-top: 40px;
        }
        .info-card {
            padding: 30px;
            border-radius: 12px;
            border-top: 5px solid var(--site-blue);
        }
        .info-card:nth-child(1) { background-color: #f4f7ff; }
        .info-card:nth-child(2) { background-color: #fafff0; border-top-color: var(--site-lime); }
        .info-card:nth-child(3) { background-color: #f9f9f9; border-top-color: #ddd; }
        .info-card h4 { margin-top: 0; color: var(--site-blue); font-size: 20px; }
        .info-card p { font-size: 14px; color: var(--text-gray); }

        /* Responsive Mobile Tuning */
        @media (max-width: 768px) {
            .container { padding: 30px 15px; }
            .section-title { font-size: 24px; margin: 40px 0 25px 0; }
            .grid-2 { flex-direction: column-reverse; gap: 30px; margin-bottom: 50px; }
            .col { min-width: 100%; }
            
            /* Table Mobile Fixes */
            .spec-table-wrap { margin-bottom: 50px; }
            table, thead, tbody, th, td, tr { display: block; }
            thead tr { position: absolute; top: -9999px; left: -9999px; }
            tr { border: 1px solid #ddd; margin-bottom: 15px; border-radius: 8px; overflow: hidden; background: #fff; }
            td { border: none; border-bottom: 1px solid #eee; position: relative; padding-left: 40% !important; text-align: left; font-size: 14px; }
            td:last-child { border-bottom: none; }
            td:before { position: absolute; top: 15px; left: 15px; width: 30%; padding-right: 10px; white-space: nowrap; font-weight: bold; color: var(--site-blue); }
            td:nth-of-type(1):before { content: "Attribute"; }
            td:nth-of-type(2):before { content: "Standard"; }
            td:nth-of-type(3):before { content: "Custom Cap."; }
            .spec-attr { width: auto; }

            /* Technical Box Mobile Fixes */
            .tech-box { flex-direction: column; text-align: center; padding: 30px 20px; gap: 20px; margin-bottom: 50px; }
            .tech-cert { font-size: 56px; }
            .tech-info h4 { font-size: 20px; }

            /* Timeline Vertical Mobile Flow */
            .timeline { flex-direction: column; align-items: flex-start; gap: 0; margin-bottom: 40px; overflow-x: hidden; padding-bottom: 0; position: relative; }
            .timeline::before { content: ''; position: absolute; top: 30px; left: 23px; width: 2px; height: calc(100% - 60px); background: #ddd; z-index: 1; }
            .step::after { display: none; }
            .step { text-align: left; width: 100%; display: grid; grid-template-columns: 50px 1fr; grid-template-rows: auto auto; padding: 0 0 30px 0; box-sizing: border-box; }
            .dot { grid-column: 1; grid-row: 1 / span 2; margin: 4px 0 0 15px; z-index: 2; }
            .step-name { grid-column: 2; grid-row: 1; height: auto; font-size: 15px; margin-bottom: 4px; }
            .step-desc { grid-column: 2; grid-row: 2; margin-top: 0; font-size: 13px; }
            .step:last-child { padding-bottom: 0; }

            /* Footer CTA Button Mobile Tuning */
            div style[text-align="center"] { margin-top: 40px !important; }
            a[href*="contact-us"] { width: 100%; padding: 15px 0 !important; font-size: 16px !important; box-sizing: border-box; }
        }