body,html {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    margin: 0;
    padding: 0;
    height: auto;
}
* {
    box-sizing: border-box;
}
.know-us-01{
    position: relative;
    width: 100%;
    height: auto;
    margin-top: 60px;
    text-align: center;
    z-index: 1;

}
.know-us-01::before{
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../img/ljwm01.png');
    background-size: cover; /* 根据需要调整 */
    background-position: center; /* 根据需要调整 */
    opacity: 0.5; /* 背景透明度，范围从0到1 */
    z-index: -1; /* 将背景置于内容之下 */

}
.know-us-02{
    position: relative;
    width: 100%;
    text-align: center;
    background-color: white;
    box-shadow: 5px 5px 10px 1px rgba(0, 0, 0, 0.3);
    z-index: 2;
    padding-top: 35px;
    padding-bottom: 20px;
}
.know-us-02::before{
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../img/ljwm02.jpg');
    background-size: cover; /* 根据需要调整 */
    background-position: center; /* 根据需要调整 */
    opacity: 0.1; /* 背景透明度，范围从0到1 */
    z-index: 1; /* 将背景置于内容之下 */

}
.img1-div{
    width: 50%;
    height: 300px;
    display: flex;
}
.img1{
    width: 700px;
}
.companyProfile{
    width: 50%;
    color:#4b5a79;
    font-size:14px;
    line-height:24px;
    text-align: left;
    padding-left: 45px;
}
.contactUs{
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: left;
    background-color: white;
    gap: 50px;
}
.contactUs-img{
    width: 30%;
    margin-left: 15%;
}
@media (max-width: 768px) {
.img1-div{
    width: 100%;
}
    .companyProfile{
        width: 100%;
    }
    .contactUs{
        flex-direction: column;
    }
    .contactUs-img{
        width: 100%;
        margin-left: 0%;
    }
    .know-us-01 h5 {
        font-size: 24px;
    }

    .know-us-01 h6 {
        font-size: 18px;
    }

    .know-us-01 div {
        flex-direction: column;
    }

    .know-us-01 img {
        width: 100%;
    }

    .know-us-02 {
        padding: 10px;
    }

    .know-us-02 p {
        font-size: 14px;
    }

}