p {
    font-size: 18px;
}

span {
    font-size: 16px;
}

.solution_left>ul>li:nth-child(3)>a {
    background-color: #006aa4;
}

.solution_left .category:hover .news_nav {
    display: block;
}

.solution_left .category {
    position: relative;
}

.solution_left .news_nav {
    display: none;
    position: absolute;
    top: 0;
    left: 200px;
    width: 200px;
    z-index: 1;
}

.solution_left .news_nav ul li {
    color: #fff;
    background-color: #0085cd;
    height: 60px;
    line-height: 60px;
    cursor: pointer;
}

.solution_left .news_nav ul li:hover {
    background-color: #006aa4;
}

.product_function .content_box p {
    padding-top: 20px;
}

.book_search {
    padding-top: 60px;
    overflow: hidden;
}

.book_search ul {
    display: flex;
    flex-wrap: nowrap;
    justify-content: space-between;
    padding-top: 65px;
}

.book_search ul li {
    width: 500px;
    padding: 0 50px;
}

.book_search .one {
    background: url(../img/产品中心-产品功能_03.jpg);
}

.one h2,
.one p {
    color: #fff;
}

.left {
    text-align: left;
}

.right {
    text-align: right;
}

.left p {
    padding-right: 30px;
}

.right p {
    text-align: left;
    padding-left: 30px;
}

.book_search ul:nth-child(odd) {
    background-color: #fff;
}

.book_search .five,
.book_search .seven {
    margin: 0;
    padding: 0;
}

.book_search .five li,
.book_search .seven li {
    margin: 0;
    padding: 0;
}
.book_search .five li:nth-child(1) div,
.book_search .seven li:nth-child(1) div{
    padding-top: 60px;
    padding-left: 30px;
}
.book_search .three,
.five,
.seven {
    background-color: #f5f5f5;
}