.product-container1 {  
        height: 800px; /* 容器高度为100% */  
        background: url(/Img/xp1/34.jpg) no-repeat center;  
    }  
  
    /* .part2_title 和其他内容的样式 */  
    .part2_title {  
        /* 根据需要添加样式 */  
        text-align: center;
        padding-top:6vh;
        color:#fff;
    }  
    .pt{
        font-size: 2em;
        padding-bottom: 10px;
    }


    .product-container2{
        height: 1080px; /* 容器高度为100% */  
        background: url(/Img/xp1/43.jpg) no-repeat center;  
        max-height: 1080px;
        color:#fff;
        display: flex;
        justify-content: center;
        align-items: center;
    }
    .part2_title2{
        transform: translate(-210px, 10px);
    }
    .pt2{
        font-size: 2.5em;
        text-align: start;
        margin-bottom: 30px;
    }
    .pt2b{
        font-size: 1em;
        text-align: start; 
    }
    
    
    
    
    .product-container3{
        height: 900px; /* 容器高度为100% */
        background: url(/Img/xp1/39.jpg) no-repeat center;
        max-height: 1080px;
        color:#000;
        display: flex;
        justify-content: center;
        align-items: center;
    }
    .part2_title3{
        left: 30vw;
        position: absolute;
        padding-top: 33vh;
        transform: translate(-150px, 10px);
    }
    .pt3{
        font-size: 2em;
        text-align: start;
    }
    .pt3b{
        font-size: 1.5em;
        text-align: start;
    }