.top-bg {
    background-image: url('/static/images/column-top-bg1.jpg');
    height: 600px;
    background-position: center;
    background-repeat: no-repeat;
    background-size: auto 100%;
}
.nav-bar {
    background: linear-gradient(90deg, #044F9F 50%, #fff 50%);
    box-shadow: 1px 1px 13px 0px rgba(0,0,0,0.1);
    position: relative;
    z-index: 9;
}
.nav-bar-line {
    width: 1500px;
    margin: 0 auto;
    background-color: #FFF;
    display: flex;
    justify-content: space-between;
}
.nav-bar-line .nav-title {
    border-left: 1px solid #FFF;
    font-weight: 400;
    font-size: 18px;
    color: #FFFFFF;
    line-height: 28px;
    padding: 30px 70px;
    background-color: #044F9F;
}
.nav-bar-line .nav-children {
    display: flex;
}
.nav-bar-line .nav-children .nav-children-item {
    font-weight: 400;
    font-size: 18px;
    color: #232323;
    line-height: 88px;
    margin: 0 40px;
    height: 88px;
    display: block;
}
.nav-bar-line .nav-children .nav-children-item.active {
    color: #044F9F;
    height: 87px;
    border-bottom: 1px solid #044F9F;
}
.nav-bar-line .nav-children .nav-children-item:hover {
    color: #044F9F;
    height: 87px;
    border-bottom: 1px solid #044F9F;
}
.box4 {
    background-image: url('/static/images/columns-box9-bg.png');
    background-size: 100% 1200px;
    background-position: top;
    background-repeat: no-repeat;
    padding-bottom: 200px;
}
.box4 .content-1500 {
    width: 1500px;
    margin: 0 auto;
    padding-top: 120px;
}
.box4 .title {
    font-weight: 500;
    font-size: 42px;
    color: #232323;
    line-height: 54px;
    padding-top: 90px;
}
.box4 .title-border {
    width: 52px;
    height: 8px;
    background: #044F9F;
    margin-top: 16px;
}
.box4 .article-first {
    background: #FFFFFF;
    box-shadow: 0px 4px 12px 0px rgba(0,0,0,0.12);
    padding: 90px;
    display: flex;
}
.box4 .article-first .a-info {
    width: 750px;
    margin-right: 130px;
}
.box4 .article-first .a-info .a-title {
    padding-top: 40px;
    font-weight: 400;
    font-size: 38px;
    color: #000000;
    line-height: 38px;
}
.box4 .article-first .a-info .a-description {
    font-weight: 400;
    font-size: 17px;
    color: #686868;
    line-height: 30px;
    margin-top: 36px;
    height: 150px;
    overflow: hidden;
    -webkit-line-clamp: 5;
    -webkit-box-orient: vertical;
    display: -webkit-box;
    text-align: justify;
    text-justify: inter-word;
}
.box4 .article-first .a-info .link-btn {
    width: 180px;
    height: 64px;
    background: #044F9F;
    border-radius: 32px 32px 32px 32px;
    display: block;
    margin-top: 60px;
    font-weight: 500;
    font-size: 20px;
    color: #FFFFFF;
    line-height: 64px;
    text-align: center;
}
.box4 .article-first .image {
    width: 430px;
    height: 430px;
}
.box4 .article-first .image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.box4 .article-list {
    display: flex;
    flex-wrap: wrap;
    gap: 75px;
    margin-top: 60px;
}
.box4 .article-list .article-item {
    width: 450px;
    background: #F6F6F6;
}
.box4 .article-list .article-item .image {
    padding: 60px 45px 45px 45px;
}
.box4 .article-list .article-item .image img {
    width: 360px;
    height: 240px;
    object-fit: cover;
}
.box4 .article-list .article-item .a-info {
    padding: 0 45px;
}
.box4 .article-list .article-item .a-info .a-subtitle {
    font-weight: 400;
    font-size: 16px;
    color: #393939;
    line-height: 26px;
    height: 26px;
    overflow: hidden;
}
.box4 .article-list .article-item .a-info .a-title {
    font-weight: 400;
    font-size: 26px;
    color: #393939;
    line-height: 40px;
    margin-top: 10px;
    height: 40px;
    overflow: hidden;
}
.box4 .article-list .article-item .link-btn {
    display: flex;
    justify-content: flex-end;
}
.box4 .article-list .article-item .link-btn a {
    display: block;
}
.box4 .article-list .article-item .link-btn img {
    width: 45px;
    height: 45px;
}

.lianxifangshi {
    height: 442px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}
.lianxifangshi .title {
    font-weight: 300;
    font-size: 48px;
    color: #FFFFFF;
    line-height: 60px;
    padding-top: 100px;
    text-align: center;
}
.lianxifangshi .subtitle {
    font-weight: 600;
    font-size: 48px;
    color: #FFFFFF;
    line-height: 60px;
    text-align: center;
    margin-top: 30px;
}

.hidden {
    display: none;
}