.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, #D61518 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: #D61518;
}
.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: #D61518;
    height: 87px;
    border-bottom: 1px solid #D61518;
}
.nav-bar-line .nav-children .nav-children-item:hover {
    color: #D61518;
    height: 87px;
    border-bottom: 1px solid #D61518;
}
.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;
}
.article-list {

}
.article-item {
    display: flex;
    background: #F6F6F6;
    margin-bottom: 40px;
}
.article-item .image {
    width: 750px;
    height: 440px;
}
.article-item .image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.article-item .a-info {
    width: 650px;
    padding: 90px 40px 90px 60px;
}
.article-item .a-info .a-title {
    font-weight: 600;
    font-size: 30px;
    color: #044F9F;
    line-height: 42px;
}
.article-item .a-info .a-description {
    font-weight: 400;
    font-size: 20px;
    color: #686868;
    line-height: 1.8;
    margin-top: 32px;
    height: 180px;
    overflow: hidden;
    -webkit-line-clamp: 5;
    -webkit-box-orient: vertical;
    display: -webkit-box;
    text-align: justify;
    text-justify: inter-word;
}
.article-item .a-info .a-time {
    font-weight: 400;
    font-size: 15px;
    color: #979797;
    line-height: 22px;
}
.article-item .a-info .article-link {
    font-weight: 400;
    font-size: 15px;
    color: #044F9F;
    line-height: 24px;
    margin-top: 10px;
}

.hidden {
    display: none;
}