:root {
        /* 品牌主色（Sony：深石墨灰，而非纯黑） */
        --brand-color: #2b2b2b;
        --brand-muted: #5f5f5f;

        /* 中性色 */
        --border-color: #dcdcdc;
        --row-soft: #f6f6f6;
        --header-soft: #3a3a3a;

        /* 文本 */
        --text-main: #2a2a2a;
        --text-sub: #7a7a7a;
    }

    body {
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
        background-color: #ffffff;
        margin: 0;
        padding: 20px;
        color: var(--text-main);
        line-height: 1.5;
    }

    .table-container {
        width: 100%;
        max-width: 900px;
        margin: 0 auto;
    }

    h2 {
        text-align: center;
        font-size: 20px;
        font-weight: 600;
        color: var(--brand-color);
        margin-bottom: 18px;
        letter-spacing: 0.3px;
    }

    table {
        width: 100%;
        border-collapse: collapse;
        table-layout: fixed;
        margin-bottom: 10px;
        border: 1px solid var(--border-color);
        background-color: #ffffff;
    }

    th {
        background-color: var(--header-soft);
        color: #ffffff;
        padding: 12px 8px;
        font-size: 14px;
        font-weight: 500;
        border: 1px solid var(--header-soft);
        letter-spacing: 0.4px;
    }

    td {
        padding: 10px 12px;
        text-align: center;
        border: 1px solid var(--border-color);
        font-size: 13px;
        color: var(--text-main);
        word-wrap: break-word;
    }

    .highlight {
        background-color: var(--row-soft) !important;
        font-weight: 600;
        color: var(--brand-color) !important;
        border-right: 2px solid var(--brand-muted);
        width: 28%;
    }

    .category-title {
        background-color: #e9e9e9 !important;
        color: var(--brand-color);
        font-weight: 600;
        font-size: 12px;
        text-transform: uppercase;
        padding: 8px;
        letter-spacing: 1px;
        border-bottom: 1px solid var(--border-color);
    }

    .sub-text {
        display: block;
        font-size: 11px;
        font-weight: normal;
        color: var(--text-sub);
        margin-top: 4px;
        line-height: 1.2;
    }

    .note {
        font-size: 12px !important;
        color: var(--text-sub) !important;
        margin-top: 0px !important;
        margin-bottom: 30px !important;
        padding-left: 4px !important;
        font-style: italic !important;
    }


    /* 第二个表格列宽优化 */
    .table-container table:last-of-type col.role-col {
        width: 20%;
    }

    .table-container table:last-of-type col.device-col {
        width: 60%;
    }

    .table-container table:last-of-type col.mode-col {
        width: 20%;
    }

    @media (max-width: 480px) {
        body {
            padding: 10px;
        }

        td {
            font-size: 12px;
            padding: 8px 4px;
        }

        .highlight {
            width: 35%;
        }

        th {
            font-size: 12px;
            padding: 10px 4px;
        }
    }