/* 基础样式 */
    * {
        box-sizing: border-box;
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    }
    .premium-hub-content {
        max-width: 100%;
        margin: 0 auto;
        padding: 30px 35px;
        line-height: 1.7;
        color: #333;
        background-color: #f9f9f9;
    }

    /* 标题样式 */
    .premium-hub-content h1 {
        text-align: center;
        color: #1a53b0;
        border-bottom: 4px solid #e0f3ff;
        padding-bottom: 15px;
        margin-bottom: 40px;
        font-size: 1.8em;
    }

    .premium-hub-content h2 {
        color: #1a53b0;
        border-bottom: 2px solid #e0f3ff;
        padding-bottom: 10px;
        margin: 35px 0 25px;
        font-size: 1.4em;
    }

    .premium-hub-content h3 {
        color: #1a53b0;
        margin: 20px 0;
        font-size: 1.2em;
    }

    /* 强调文本 */
    .premium-hub-content .emphasis {
        color: #1a53b0;
        font-weight: 600;
    }

    /* 引用框 */
    .premium-hub-content .insight-box {
        background: #f0f8ff;
        padding: 25px 30px;
        border-left: 4px solid #1a53b0;
        margin: 25px 0;
        font-style: italic;
        color: #444;
    }

    /* 列表样式 */
    .premium-hub-content .benefits-list {
        list-style: none;
        padding-left: 25px;
    }

    .premium-hub-content .benefits-list li {
        margin: 12px 0;
        position: relative;
    }

    .premium-hub-content .benefits-list li::before {
        content: "";
        width: 8px;
        height: 8px;
        background-color: #1a53b0;
        border-radius: 50%;
        display: inline-block;
        position: absolute;
        left: -20px;
        top: 8px;
    }

    /* 表格样式 */
    .premium-hub-content .perf-table {
        width: 100%;
        border-collapse: collapse;
        margin: 30px 0;
        background: white;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    }

    .premium-hub-content .perf-table th, 
    .premium-hub-content .perf-table td {
        padding: 18px 20px;
        border-bottom: 1px solid #e5f0ff;
        text-align: left;
    }

    .premium-hub-content .perf-table th {
        background-color: #1a53b0;
        color: white;
        font-weight: 500;
    }

    /* 行动号召 */
    .premium-hub-content .cta-section {
        background: #1a53b0;
        color: white;
        padding: 40px 30px;
        border-radius: 12px;
        text-align: center;
        margin: 50px 0;
    }

    .premium-hub-content .cta-btn {
        display: inline-block;
        background: white;
        color: #1a53b0;
        padding: 15px 40px;
        text-decoration: none;
        border-radius: 30px;
        font-weight: 600;
        font-size: 1em;
        transition: transform 0.2s ease;
    }

    .premium-hub-content .cta-btn:hover {
        transform: scale(1.03);
    }

    /* 响应式调整 */
    @media (max-width: 768px) {
        .premium-hub-content {
            padding: 20px;
        }

        .premium-hub-content h1 {
            font-size: 1.6em;
        }

        .premium-hub-content h2 {
            font-size: 1.2em;
        }

        .premium-hub-content .perf-table th, 
        .premium-hub-content .perf-table td {
            padding: 12px 15px;
        }

        .premium-hub-content .cta-section {
            padding: 30px 20px;
        }

        .premium-hub-content .cta-btn {
            padding: 12px 30px;
        }
    }