.case-main {
    /* width: 80%;
    margin: 0 auto; */
    padding: 0 0 100px;
}
.case-main .special-dot {
    color: #333;
    font-size: 30px;
    position: relative;
    padding: 20px;
    width: 200px;
    margin: 70px auto 70px;
    text-align: center;
    font-weight: 700;
}

.case-main .special-dot::before {
    content: '';
    width: 80%;
    height: 3px;
    background-color: #1B2A78;
    position: absolute;
    right: 0;
    left: 0;
    bottom: 0;
    transition: all 0.3s;
    margin: 0 auto;
}
.case-main .a-part3 .swiper-wrapper {
    padding: 0 88px;
}

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

.case-outer .case-inner {
    width: 32%;
    border: 1px solid #f3f3f3;
    box-shadow: 0 4px 8px rgb(243, 243, 243);
    padding: 20px;
    text-align: center;
    border-radius: 10px;
    transition: all 0.5s;
}
.case-outer .case-inner:hover{
    box-shadow: 0px 4px 9px 0px rgba(0, 89, 168, 0.10), 0px 17px 17px 0px rgba(0, 89, 168, 0.09), 0px 38px 23px 0px rgba(0, 89, 168, 0.05);
    transform: translateY(-10px);
}

.case-outer .case-inner .img {
    width: 100%;
    height: 250px;
    overflow: hidden;
}
.case-outer .case-inner .img img {
    width: 100%;
}

.case-outer .case-inner .title {
    margin: 20px 0;
    font-weight: 500;
}

.case-outer .case-inner .subtitle {
    text-align: justify;
    color: #666;
    line-height: 1.75;
}
.case-sys-img {
    margin: 20px auto;
    text-align: center;
}
.case-sys-img img {
    width: 80%;
}

.case-banner {
    max-height: 600px;
}