.case_box {
     background: #1a1e32;
     padding-top: 100px;
     padding-bottom: 100px;
 }

 .whiteFont {
     color: #fff;
 }

 p.tit_p {
     font-size: 16px;
     margin-left: 23%;
     margin-right: 23%;
     color: #fff;
     font-weight: normal;
     text-align: center;
 }

 .caseUl {
     display: flex;
     justify-content: space-between;
 }

 .caseUl li {
     width: 31.333333%;
     border-radius: 6px;
     background: #fff;
     margin-top: 64px;
     position: relative;
     height: 488px;
 }

 .image-container-big {
     overflow: hidden;
     height: 488px;
     border: 2px solid #ccc;
 }

 .image-container-big img {
     width: 100%;
     object-fit: cover;
     transition: transform 7s ease;
 }

 .caseUl li .img img {
     top: 0;
     left: 0;
     width: 100%;
     position: absolute;
     object-fit: cover;
 }

 .caseUl li .img {
     position: relative;
     overflow: hidden;
     height: 488px;
 }

 span,
 u {
     font-weight: 400;
     font-style: normal;
 }

 .image-container-small {
     overflow: hidden;
     width: 300px;
     height: 200px;
     border: 2px solid #ccc;
 }

 .caseUl li span {
     position: absolute;
     width: 160px;
     height: 300px;
     bottom: -60px;
     right: 18px;
     border-radius: 5px;
     box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
     background: #fff;
     overflow: hidden;
 }

 .image-container-small img {
     width: 100%;
     object-fit: cover;
     transition: transform 30s ease;
 }

 .caseUl li span img {
     top: 0;
     left: 0;
     width: 100%;
     position: absolute;
     object-fit: contain;
 }

 .case-card {
     position: relative;
     height: 100%;
 }

 .overlay {
     position: absolute;
     bottom: 0;
     left: 0;
     right: 0;
     background: rgba(0, 0, 0, 0.7);
     color: white;
     padding: 15px;
     transform: translateY(100%);
     transition: transform 0.3s ease;
 }

 .caseUl li:hover .overlay {
     transform: translateY(0);
 }

 .overlay h3 {
     margin: 0 0 8px 0;
     font-size: 18px;
 }

 .overlay p {
     font-size: 14px;
     margin-bottom: 8px;
     color: #ddd;
 }

 @media (max-width: 1600px) {

     .caseUl {
         width: 94%;
         margin: 0 3%;
     }

     .client_bannerbox {
         width: 94%;
     }
 }

 @media (max-width: 767px) {
     .caseUl {
         flex-wrap: wrap;
     }

     .caseUl li {
         width: 48%;
         margin-right: 2%;
         margin-bottom: 30px;
         height: 488px;
     }

     .caseUl li:nth-child(2n) {
         margin-right: 0;
     }

     .image-container-big {
         height: 488px;
     }
 }

 @media (max-width: 575px) {
     .caseUl li {
         width: 100%;
         margin-right: 0;
         height: 400px;
     }

     .image-container-big {
         height: 400px;
     }

     .caseUl li span {
         height: 180px;
     }

     p.tit_p {
         margin-left: 5%;
         margin-right: 5%;
     }

     .caseUl li span {
         bottom: -110px;
     }
 }

 .image-container-big,
 .image-container-small {
     overflow: hidden;
     position: relative;
 }

 .image-container-big img {
     transition: all 2s ease;
 }

 .image-container-big img,
 .image-container-small img {
     will-change: transform;
     backface-visibility: hidden;
 }

 .image-container-big:hover img {
     transform: translateY(calc(-100% + 488px));
 }

 .image-container-small:hover img {
     transform: translateY(calc(-100% + 300px));
 }