.main .part4 .layout {
    position: relative;
}

.main .part4 .layout ul li {
    float: left;
    margin-right: 12px;
    margin-top: 25px;
    padding: 20px;
    box-shadow: 6px 8px 18px 8px rgba(40, 94, 171, 0.1);
}

.main .part4 .layout ul li:nth-child(2n) {
    margin-right: 0;
}

.main .part4 .layout ul li:nth-child(1),
.main .part4 .layout ul li:nth-child(2) {
    margin-top: 0;
}

.main .part4 .layout ul li:hover a .imgbox img {
    transform: scale(1.3);
}

.main .part4 .layout ul li:hover a .info .title {
    color: #285EAB;
}

.main .part4 .layout ul li a {
    display: flex;
}

.main .part4 .layout ul li a .imgbox {
    margin-right: 20px;
    width: 254px;
    height: 143px;
    overflow: hidden;
}

.main .part4 .layout ul li a .imgbox img {
    display: block;
    width: 100%;
    height: 100%;
    transition: all .3s;
}

.main .part4 .layout ul li a .info {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.main .part4 .layout ul li a .info .title {
    width: 260px;
    font-family: SourceHanSansCN, SourceHanSansCN;
    font-weight: 400;
    font-size: 20px;
    color: #282828;
    line-height: 32px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    text-overflow: ellipsis;
    word-break: break-all;
}

.main .part4 .layout ul li a .info .box {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.main .part4 .layout ul li a .info .box .left {
    margin-right: 22px;
}

.main .part4 .layout ul li a .info .box .left p {
    margin: 5px 0;
    font-family: SourceHanSansCN, SourceHanSansCN;
    font-weight: 400;
    font-size: 16px;
    color: #999999;
}

.main .part4 .layout ul li a .info .box .right .button {
    background-color: #fff;
    border-radius: 20px 20px 20px 20px;
    padding: 9px 35px;
    border: 1px solid #285EAB;
    font-family: SourceHanSansCN, SourceHanSansCN;
    font-weight: 400;
    font-size: 16px;
    color: #1E3B77;
}

.main .part4 .layout ul li a .info .box .right .button:hover {
    background: #285EAB;
    color: #fff;
}