.tkm-cooper {}
    .tkm-cooper h3 {
        font-size: 24px;
        margin-bottom: 40px;
        text-align: center;
    }
    .tkm-cooper h3 b {
        display: inline-block;
        position: relative;
    }
    .tkm-cooper h3 b:after {
        content: "";
        width: 60px;
        height: 2px;
        position: absolute;
        background: linear-gradient(270deg,#61b1ff,#04f);
        bottom: -10px;
        left: 50%;
        margin-left: -30px;
    }
    .tkm-cooper .item {
        text-align: center;
        margin-bottom: 35px;
        height: 80%;
        background: #fff;
    }
    .tkm-cooper .item .item-logo {}
.tkm-cooper .item .item-logo img {
    max-height: 100%;
    max-width: 100%; /* 添加这个以确保宽度不溢出 */
    height: auto;
    width: auto;
    display: block; /* 确保图片作为块级元素，避免间隙 */
    margin: 0 auto; /* 居中对齐 */
}

    .tkm-cooper .item:hover {
        box-shadow: 0 5px 15px 0 rgba(62,130,255,.13);
    }
@media (max-width: 767px){
    .tkm-cooper h3  {
        font-size: 18px;
    }
    .tkm-cooper .item {
        height: 60px;
        margin-bottom: 10px;
    }
}