.theme-image-box{
            padding: 0;
            margin: 0;
            margin-top:76px;
            text-align: center;
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
            width: 100%; /* 或者设置为你希望的宽度 */
            overflow: hidden; /* 隐藏超出容器宽度的部分 */
            background-image: url('../images/us-1.jpg');
            /*background-image: url('../images/pingyao-1.jpg');*/
            background-size: cover;  /* 覆盖整个容器 */
            background-position: center;  /* 中心对齐 */
            height: 270px; 
            display: block;
        }
        .theme-image{
            display: none;
            min-height: 200px;
            max-height: 300px; /* 保持图片高度不变 */
            width: 100%; 
            min-width: 100%;
            object-fit: cover; /* 保持宽高比，多余的部分会被裁剪 */
            object-position: center; /* 图片的中心与容器的中心对齐 */
        }
        .theme-text{
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -60%);
            color: white;
            z-index: 10;
        }
        .container-fixed{
            position: relative; /* 或 absolute, fixed, 或 sticky */
            z-index: 1;
            margin-top: -40px !important;
            
        }
        @media (max-width: 480px){
            .theme-image{

            }
            .container-fixed{
                /*padding: 25px 20px 15px;*/
            }
        }
        @media (min-width: 992px){
            /*.theme-image-box{*/
            /*    margin-top:100px;*/
            /*}*/
            .container-fixed{
                position: relative; /* 或 absolute, fixed, 或 sticky */
                z-index: 1;
                margin-top: -50px !important;
            }
        }
        @media (min-width: 1100px){
            /*.theme-image-box{*/
            /*    margin-top:80px;*/
            /*}*/
        }
        @media (min-width: 768px) and (max-width: 1200px){
            #image-header{
                margin-right: 40px;
            }
        }