.ricj-seo-container {
        margin-top: 40px;
        padding: 25px;
        border-top: 1px solid #eee;
        background-color: #f9f9f9;
        color: #444;
        font-family: Arial, sans-serif;
        line-height: 1.8;
        border-radius: 8px;
        content-visibility: auto;
        contain-intrinsic-size: 1px 500px;
        position: relative; 
    }
    .ricj-seo-container h3 {
        color: #222;
        font-size: 1.5rem;
        margin-bottom: 15px;
        border-left: 4px solid #d91e18;
        padding-left: 15px;
    }
    .ricj-seo-container h4 {
        color: #333;
        font-size: 1.2rem;
        margin-top: 25px;
        margin-bottom: 10px;
    }

    /* 📱 手机端适配 */
    @media (max-width: 768px) {
        .ricj-seo-container {
            padding: 15px;
            margin-top: 25px;
            max-height: 300px; 
            overflow: hidden;
            transition: max-height 0.4s ease-in-out;
        }
        .ricj-seo-container.expanded {
            max-height: 2000px; 
        }
        .read-more-wrapper {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 100px;
            background: linear-gradient(transparent, #f9f9f9 80%);
            display: flex;
            justify-content: center;
            align-items: flex-end;
            padding-bottom: 15px;
            z-index: 2;
        }
        .read-more-btn {
            background-color: #d91e18;
            color: #fff;
            border: none;
            padding: 10px 30px;
            border-radius: 25px;
            font-size: 14px;
            font-weight: bold;
            cursor: pointer;
        }
        .ricj-seo-container.expanded .read-more-wrapper {
            display: none;
        }
    }

    /* 💻 电脑端隐藏 Read More */
    @media (min-width: 769px) {
        .read-more-wrapper {
            display: none;
        }
    }