.main {
    padding: 40px 0;
}

.main .layout ul li {
    float: left;
    margin-top: 30px;
    margin-right: 13px;
}

.main .layout ul li:nth-child(4n) {
    margin-right: 0;
}

.main .layout ul li:nth-child(1),
.main .layout ul li:nth-child(2),
.main .layout ul li:nth-child(3),
.main .layout ul li:nth-child(4) {
    margin-top: 0;
}

.main .layout ul li a {
    display: block;
}

.main .layout ul li a .imgbox {
    width: 290px;
    height: 162px;
    overflow: hidden;
}

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

.main .layout ul li a .title {
    width: 290px;
    margin-top: 18px;
    font-family: SourceHanSansCN, SourceHanSansCN;
    font-weight: 500;
    font-size: 20px;
    color: #000000;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    word-break: break-all;
}

.main .layout ul li a .writer {
    margin-top: 18px;
    font-family: SourceHanSansCN, SourceHanSansCN;
    font-weight: 400;
    font-size: 20px;
    color: #666666;
}