#lnb > ul > li:nth-child(4) a {
    color: #ff164f;
    font-weight: bold;
}




section > h3 {
    width: 1136px;
    margin: 150px auto;
    padding: 0 16px;
    position: relative;
}

.title img {
    position: absolute;
    top: -55px;
    left: 220px;
}




#menu {
    width: 1136px;
    height: 40px;
    margin: 0 auto;
    padding-bottom: 40px;
    border-bottom: 1px solid #ddd;
}

#menu p:nth-child(2) .tag:hover::after {
    background-color: #ddd;
}

.tag {
    font-size: 18px;
    margin-right: 50px;
}

.tag::after {
    width: calc(100% + 40px);
    height: 40px;
    border-radius: 20px;
}




#books {
    width: 1136px;
    margin: 0 auto;
    margin-bottom: 120px;
    padding-top: 50px;
    overflow: hidden;
}

.books {
    width: 100%;
    overflow: hidden;
}

.books li {
    float: left;
    width: 560px;
    height: 180px;
    margin-right: 16px;
    margin-bottom: 50px;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.books li a {
    display: block;
    width: 100%; height: 100%;
}

.books li img {
    width: 100%;
    border-radius: 12px;
}

.books li:nth-child(2n) {
    margin-right: 0;
}

.books li::after {
    content: "";
    width: 100%; height: 140px;
    background-color: #fff;
    position: absolute; left: 0; top: 0; opacity: 0;
    cursor: pointer;
    transition: all 0.1s;
    pointer-events: none;
}

.books li:hover p {
    color: #ff164f;
}

.books li:hover::after {opacity: 0.2;}

.books li p {
    color: #333;
    margin-top: 10px;
    transition: all 0.1s;
}