.constudylab{background-color:#4074f2}.constudylab,.constudysc{backgroundSize:"cover";background-size:cover;background-position:50%;position:relative;height:300px}.constudysc{background-color:#6e747d}.left-div{margin-right:100px;margin-left:95px;width:700px}.right-div{margin-left:180px;margin-right:10px;flex:1}.grid-content{margin-left:10px;margin-right:10px}.service-window{position:fixed;bottom:100px;right:30px;width:320px;height:400px;background:#fff;border-radius:10px;box-shadow:0 0 20px rgba(0,0,0,.1);display:none;z-index:9998;overflow:hidden}.service-header{background:#007bff;color:#fff;padding:12px;font-weight:700}.service-body{padding:15px;height:280px;overflow-y:auto}.service-footer{padding:10px;border-top:1px solid #eee}.service-footer input{width:70%;padding:6px;border:1px solid #ddd;border-radius:4px}.service-footer button{width:25%;background:#007bff;color:#fff;border:none;padding:6px;border-radius:4px;cursor:pointer}