.part3 {
    padding: 20px 0 35px;
}

.part3 .layout ul li {
    float: left;
    margin-top: 20px;
    margin-right: 25px;
}

.part3 .layout ul li:nth-child(4n) {
    margin-right: 0;
}

.part3 .layout ul li:nth-child(1),
.part3 .layout ul li:nth-child(2),
.part3 .layout ul li:nth-child(3),
.part3 .layout ul li:nth-child(4) {
    margin-top: 0;
}

.part3 .layout ul li a {
    display: block;
}

.part3 .layout ul li a .imgbox {
    position: relative;
    width: 281px;
    height: 172px;
}

.part3 .layout ul li a .imgbox img {
    display: block;
    border-radius: 10px;
    width: 100%;
    height: 100%;
}

.part3 .layout ul li a .imgbox p {
    padding-top: 4px;
    position: absolute;
    align-items: center;
    justify-content: center;
    left: -6px;
    bottom: 18px;
    width: 126px;
    height: 39px;
    display: flex;
    background: url(../images/part3_bg.png) no-repeat center center / 100% 100%;
    font-family: SourceHanSansCN, SourceHanSansCN;
    font-weight: 500;
    font-size: 18px;
    color: #333333;
}

.part3 .layout ul li a .imgbox p img {
    margin-left: 9px;
    display: block;
    width: 12px;
    height: 12px;
}