直接将下面的代码放到：子比主题–>>自定义CSS样式即可！

 .ercdh {
        display: flex;
        overflow: hidden;
    }
    
    .ercdh_1 {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
        padding-right: 30px;
        position: relative;
        width: 50%;
    }
    
    .sbaner {
        height: 80px;
    }
    
    .ercdh_2 {
        flex: 1;
        padding-left: 30px;
        display: grid;
        grid-template-columns: repeat(5, 1fr);
        gap: 0 15px;
    }
    
    .mhs-flex-container {
        display: flex;
        justify-content: flex-start;
        align-items: center;
        align-self: auto;
    }
    
    .random-color {
        transition: background-color 0.5s;
        color: #ececec;
    }
    
    .bqct {
        font-size: 14px;
        display: flex;
    }
    
.bqct a {
    width: 100%;
    border-radius: 6px;
    background-color: var(--main-bg-color);
    text-align: center;
    font-weight: 400;
    transition: background-color .3s, color .3s;
    line-height: 30px;
    color: #707070;
    text-decoration: none;
}
    
    .bqct a:hover {
        color: #f1f2f3;
    }
    
    .sbaner:after {
        content: "";
        display: inline-block;
        background: #ececec;
        position: absolute;
        width: 1px;
        height: 44px;
        right: 0;
        top: 50%;
        -webkit-transform: translateY(-50%);
        transform: translateY(-50%);
    }
    
    .html-box img {
        height: 80px;
    }
@media screen and (max-width: 1221px) { .ercdh{display:none; }
}

直接将下面的代码放到：子比主题–>>自定义javascript代码即可！

    function getRandomColor() {
        const letters = '0123456789ABCDEF';
        let color = '#';
        for (let i = 0; i < 6; i++) {
            color += letters[Math.floor(Math.random() * 16)];
        }
        return color;
    }
    document.addEventListener('DOMContentLoaded', () => {
        const sections = document.querySelectorAll('.random-color');
        sections.forEach(section => {
            section.addEventListener('mouseover', () => {
                section.style.backgroundColor = getRandomColor();
            });
            section.addEventListener('mouseout', () => {
                section.style.backgroundColor = '';
            });
        });
    });