.banner{
    padding: 180px 0 100px 0;
}
.banner h1 {
    font-size: 32px;
    margin-bottom: 0;
    line-height: 1.5;
}

.banner p {
    font-size: 13px;
    max-width: 500px;
    margin-bottom: 20px;
    line-height: 2;
}

.banner-box{
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}



/* 响应式适配（手机端）- 基于375px手机宽度换算 */
@media (max-width: 1024px) and (min-width: 769px) {

    /* 横幅区域适配 */
    .banner {
        padding: 200px 0 100px 0;
        text-align: center;
    }

    .banner-box {
        width: 400px;
        flex-direction: column;
        gap: 20px;
    }

    .banner h1 {
        font-size: 24px;
        margin-bottom: 10px;
    }

    .banner p {
        font-size: 14px;
        max-width: 400px;
        text-align: justify;
    }
}


.main{
    overflow-x: scroll;
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
}

.item{
    width: 600px;
    height: 300px;
    position: relative;
    margin-bottom: 40px;
    /* 不被挤压 */
    flex-shrink: 0;
}

.item-inner{
    background: #fff;
    position: absolute;
    width: 300px;
    top: 50px;
    left: -1px;
    z-index: 99;
    border: 0;
}
.item-title{
    font-size: 16px;
    margin-bottom: 6px;
    font-weight: 550;
}
.item-subtitle{
    font-size: 14px;
    margin-bottom: 10px;
}
.item-desc{
    font-size: 12px;
    line-height: 1.5;
    color: #888;
}
.item-inset{
    position: relative;
    padding: 20px;
}
.item-inset::before{
    content: '';
    display: block;
    width: 4px;
    height: 100%;
    background: #0d6efd;
    position: absolute;
    left: -2px;
    top: 0;
}


/* 响应式适配（手机端）- 基于375px手机宽度换算 */
@media (max-width: 768px) {

    /* 横幅区域适配 */
    .banner {
        padding: 200px 0 100px 0;
        text-align: center;
    }

    .banner-box {
        width: 338px;
        flex-direction: column;
        gap: 20px;
    }

    .banner h1 {
        font-size: 24px;
        margin-bottom: 10px;
    }

    .banner p {
        font-size: 14px;
        max-width: 338px;
        text-align: justify;
    }
}