body {
            margin: 0;
            padding: 24px;
            font-family: Arial, Helvetica, sans-serif;
            background: #f3f4f6;
            color: #1f2937;
        }

        .case-container {
            max-width: 1160px;
            margin: 0 auto;
            background: #ffffff;
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid #e5e7eb;
            box-shadow: 0 12px 30px rgba(31, 41, 55, 0.12);
        }

        .case-header {
            padding: 34px 26px;
            text-align: center;
            background: linear-gradient(135deg, #0f172a, #1e40af, #2563eb);
            color: #ffffff;
        }

        .case-header h2 {
            margin: 0;
            font-size: 30px;
            line-height: 1.3;
            font-weight: 700;
        }

        .case-header p {
            margin: 12px 0 0;
            font-size: 15px;
            line-height: 1.7;
            color: #dbeafe;
        }

        .section-title {
            padding: 18px 22px;
            background: #111827;
            color: #ffffff;
            font-size: 20px;
            font-weight: 700;
            text-align: center;
            letter-spacing: 0.3px;
        }

        table {
            width: 100%;
            border-collapse: collapse;
        }

        thead th {
            padding: 16px 22px;
            background: #1f2937;
            color: #ffffff;
            font-size: 16px;
            text-align: left;
            border-bottom: 1px solid #374151;
        }

        tbody td {
            padding: 15px 22px;
            font-size: 15px;
            line-height: 1.7;
            border-bottom: 1px solid #e5e7eb;
            vertical-align: top;
        }

        tbody tr:nth-child(odd) {
            background: #ffffff;
        }

        tbody tr:nth-child(even) {
            background: #f9fafb;
        }

        tbody tr:hover {
            background: #eff6ff;
        }

        .label-cell {
            width: 34%;
            font-weight: 700;
            color: #111827;
        }

        .content-cell {
            color: #374151;
        }

        .highlight {
            color: #1d4ed8;
            font-weight: 700;
        }

        .company-block {
            padding: 22px 26px;
            background: #f8fafc;
            border-top: 1px solid #e5e7eb;
            color: #4b5563;
            font-size: 14px;
            line-height: 1.8;
        }

        @media screen and (max-width: 768px) {
            body {
                padding: 12px;
            }

            .case-header {
                padding: 26px 16px;
            }

            .case-header h2 {
                font-size: 23px;
            }

            .case-header p {
                font-size: 13px;
            }

            table,
            thead,
            tbody,
            tr,
            th,
            td {
                display: block;
                width: 100%;
            }

            thead {
                display: none;
            }

            tbody tr {
                border-bottom: 1px solid #cbd5e1;
            }

            tbody td {
                box-sizing: border-box;
                padding: 13px 16px;
            }

            .label-cell {
                width: 100%;
                background: #e0ecff;
                color: #111827;
                border-bottom: none;
            }

            .content-cell {
                width: 100%;
                background: #ffffff;
            }

            .section-title {
                font-size: 18px;
                padding: 16px;
            }
        }