/* ----- Soft Blue Identity · Clean White Background ----- */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background: #ffffff;
            color: #2d3e4f;
            line-height: 1.6;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px 24px;
        }
        .text-center {
            text-align: center;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            margin: 10px 0 6px;
            color: #1c2e3f;
            letter-spacing: -0.3px;
        }
        .section-sub {
            font-size: 16px;
            color: #5b6f80;
            margin-bottom: 30px;
        }
        .highlight {
            color: #4a7b9d; /* soft blue */
        }
        .badge {
            display: inline-block;
            background: #e6eef5;
            color: #2d5a7a;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 20px;
            letter-spacing: 0.4px;
            margin-bottom: 8px;
            text-transform: uppercase;
        }
        /* Cards */
        .flex-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
        }
        .flex-grid .card {
            flex: 1 1 200px;
            min-width: 180px;
            background: #ffffff;
            border: 1px solid #d9e2ec;
            border-radius: 14px;
            padding: 24px 20px;
            transition: 0.2s;
        }
        .flex-grid .card:hover {
            border-color: #8fb4cc;
            box-shadow: 0 4px 12px rgba(74, 123, 157, 0.08);
        }
        .flex-grid .card .icon {
            font-size: 28px;
            font-weight: 700;
            color: #4a7b9d;
            margin-bottom: 8px;
        }
        .flex-grid .card h4 {
            font-size: 18px;
            margin-bottom: 4px;
            color: #1c2e3f;
        }
        .flex-grid .card p {
            color: #4d6376;
            font-size: 14px;
            margin: 0;
        }
        /* 3-col */
        .col-3 {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            justify-content: center;
        }
        .col-3 .item {
            flex: 1 1 260px;
            background: #f8fbfd;
            border-radius: 14px;
            padding: 24px 20px;
            border: 1px solid #d9e2ec;
            transition: 0.2s;
        }
        .col-3 .item:hover {
            border-color: #8fb4cc;
        }
        .col-3 .item h3 {
            font-size: 18px;
            margin-bottom: 4px;
            color: #1c2e3f;
        }
        .col-3 .item p {
            color: #4d6376;
            font-size: 14px;
        }
        /* Table */
        .spec-table {
            width: 100%;
            border-collapse: collapse;
            background: #ffffff;
            border: 1px solid #d9e2ec;
            border-radius: 14px;
            overflow: hidden;
            margin: 10px 0;
        }
        .spec-table th {
            background: #edf3f8;
            font-weight: 600;
            font-size: 13px;
            text-transform: uppercase;
            color: #2d5a7a;
            padding: 12px 20px;
            text-align: left;
            border-bottom: 1px solid #d9e2ec;
        }
        .spec-table td {
            padding: 12px 20px;
            border-bottom: 1px solid #edf3f8;
            color: #1c2e3f;
        }
        .spec-table tr:last-child td {
            border-bottom: none;
        }
        .spec-table .label {
            font-weight: 600;
            width: 30%;
            color: #2d4a63;
        }
        /* Scenarios */
        .scene-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .scene-grid .scene-item {
            flex: 1 1 150px;
            min-width: 140px;
            border: 1px solid #d9e2ec;
            border-radius: 14px;
            overflow: hidden;
            background: #ffffff;
            text-align: center;
        }
        .scene-grid .scene-item img {
            width: 100%;
            height: 140px;
            object-fit: cover;
            display: block;
            background: #edf3f8;
        }
        .scene-grid .scene-item p {
            padding: 10px 0;
            font-weight: 500;
            margin: 0;
            color: #1c2e3f;
        }
        /* Product cards */
        .product-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            justify-content: center;
        }
        .product-grid .p-card {
            flex: 1 1 220px;
            min-width: 200px;
            border: 1px solid #d9e2ec;
            border-radius: 14px;
            padding: 20px 16px;
            background: #ffffff;
            text-align: center;
            transition: 0.2s;
        }
        .product-grid .p-card:hover {
            border-color: #8fb4cc;
        }
        .product-grid .p-card img {
            max-height: 150px;
            margin: 0 auto 12px;
            object-fit: contain;
        }
        .product-grid .p-card h4 {
            font-size: 18px;
            margin: 6px 0;
            color: #1c2e3f;
        }
        .product-grid .p-card .tag {
            display: inline-block;
            background: #e6eef5;
            color: #2d5a7a;
            font-size: 12px;
            padding: 2px 14px;
            border-radius: 20px;
            font-weight: 600;
        }
        /* Video */
        .video-wrapper {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            justify-content: center;
            margin: 20px 0 30px;
        }
        .video-wrapper .vid-box {
            flex: 1 1 380px;
            min-width: 280px;
        }
        .video-wrapper .vid-box h3 {
            font-size: 18px;
            margin-bottom: 10px;
            color: #1c2e3f;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .video-wrapper iframe {
            width: 100%;
            height: 220px;
            border-radius: 14px;
            border: 1px solid #d9e2ec;
            background: #edf3f8;
        }
        /* Trust */
        .trust-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .trust-grid .t-card {
            flex: 1 1 160px;
            min-width: 140px;
            background: #ffffff;
            border: 1px solid #d9e2ec;
            border-radius: 14px;
            padding: 20px 16px;
            text-align: center;
        }
        .trust-grid .t-card .num {
            font-size: 28px;
            font-weight: 800;
            color: #4a7b9d;
        }
        .trust-grid .t-card h4 {
            color: #1c2e3f;
            margin: 4px 0;
        }
        .trust-grid .t-card p {
            color: #4d6376;
            font-size: 14px;
            margin: 0;
        }
        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-list .faq-item {
            border: 1px solid #d9e2ec;
            border-radius: 14px;
            padding: 16px 20px;
            margin-bottom: 12px;
            background: #ffffff;
        }
        .faq-list .faq-item .q {
            font-weight: 700;
            color: #1c2e3f;
        }
        .faq-list .faq-item .a {
            color: #4d6376;
            padding-left: 24px;
            margin-top: 4px;
        }
        /* Buttons – Blue */
        .btn {
            display: inline-block;
            background: #4a7b9d;
            color: #ffffff;
            font-weight: 600;
            padding: 12px 32px;
            border-radius: 40px;
            text-decoration: none;
            border: none;
            margin: 4px;
            transition: 0.2s;
        }
        .btn:hover {
            background: #3a6685;
            box-shadow: 0 4px 12px rgba(74, 123, 157, 0.25);
        }
        .btn-outline {
            background: transparent;
            color: #2d5a7a;
            border: 1.5px solid #b3c9db;
        }
        .btn-outline:hover {
            border-color: #4a7b9d;
            background: #f0f6fa;
        }
        .btn-light {
            background: #edf3f8;
            color: #1c2e3f;
            border: 1px solid #b3c9db;
        }
        .btn-light:hover {
            background: #d9e2ec;
        }
        /* Footer */
        .footer {
            background: #f5f9fc;
            color: #4d6376;
            padding: 24px 0;
            margin-top: 40px;
            text-align: center;
            border-top: 1px solid #d9e2ec;
        }
        .footer a {
            color: #4d6376;
            text-decoration: none;
        }
        .footer a:hover {
            color: #1c2e3f;
        }
        /* Light block */
        .light-block {
            background: #f8fbfd;
            padding: 40px 0;
        }
        hr {
            margin: 30px 0;
            border: 0;
            border-top: 1px solid #d9e2ec;
        }
        /* Certification badges */
        .cert-badge {
            display: inline-block;
            background: #ffffff;
            border: 1px solid #d9e2ec;
            border-radius: 30px;
            padding: 6px 18px;
            font-weight: 600;
            font-size: 13px;
            color: #2d5a7a;
            margin: 4px 6px;
        }
        /* Download list */
        .download-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            justify-content: center;
        }
        .download-list a {
            color: #4a7b9d;
            font-weight: 500;
            text-decoration: none;
            border-bottom: 1px solid transparent;
            transition: 0.15s;
        }
        .download-list a:hover {
            border-bottom-color: #4a7b9d;
        }
        @media (max-width: 640px) {
            .section-title {
                font-size: 22px;
            }
            .video-wrapper iframe {
                height: 180px;
            }
            .flex-grid .card {
                flex: 1 1 100%;
            }
            .col-3 .item {
                flex: 1 1 100%;
            }
            .spec-table td, .spec-table th {
                padding: 8px 12px;
                font-size: 13px;
            }
        }