.header-nav {
    position: sticky;
    top: 0;
    z-index: 1020;
    background-color: #fff;
}
.shadow{
    box-shadow: 0 0.5rem 1rem rgb(0 0 0 / 5%);
}
.header-nav .layout{
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 62px;
    line-height: 62px;
    color: #1D1E1F;
}
.header-nav .logo-nav {
    display: flex;
    align-items: center;
}

.header-nav .logo-nav img {
    vertical-align: middle;
    margin-right: 50px;
}

.header-nav .nav-item {
    display: inline-block;
    margin-right: 30px;
}
.header-nav .nav-item:hover a {
    color: #1E49BC;
}
.header-nav .nav-item.current a {
    color: #1E49BC;
}
.header-nav .tel-phone {
    padding-left: 20px;
    background-image: url('../images/tel.png');
    background-position: left center;
    background-repeat: no-repeat;
}

.banner {
    background: url('../images/banner-bg.png');
    background-size: cover;
    overflow: hidden;
}

.banner-item {
    text-align: center;
}

.banner-item img {
    width: 100%;
}

.floor-wrap .title {
    padding: 80px 0 60px;
    color: #211D1D;
    font-size: 24px;
    text-align: center;
}

.floor-wrap .content {
    padding-bottom: 80px;
}

.our-product .content {
    display: flex;
}

.our-product .product-tab-list {
    width: 380px;
    border: 1px solid #ededed;
    border-bottom: 0;
}

.our-product .item-tit {
    padding: 6px 0 6px 66px;
    background-repeat: no-repeat;
    background-size: contain;
}

.our-product .online-arbitration {
    background-image: url('../images/online-arbitration-icon-hot.png');
}

.our-product .selected .online-arbitration {
    background-image: url('../images/online-arbitration-icon.png');
}

.our-product .intelligent-mediation {
    background-image: url('../images/intelligent-mediation-icon-hot.png');
}

.our-product .selected .intelligent-mediation {
    background-image: url('../images/intelligent-mediation-icon.png');
}

.our-product .solidification {
    background-image: url('../images/solidification-icon-hot.png');
}

.our-product .selected .solidification {
    background-image: url('../images/solidification-icon.png');
}

.our-product .existing-evidence {
    background-image: url('../images/existing-evidence-icon-hot.png');
}

.our-product .selected .existing-evidence {
    background-image: url('../images/existing-evidence-icon.png');
}

.our-product .obtain-evidence {
    background-image: url('../images/obtain-evidence-icon-hot.png');
}

.our-product .selected .obtain-evidence {
    background-image: url('../images/obtain-evidence-icon.png');
}

.our-product .tab-con {
    position: relative;
    flex: 1;
    background: #f8fbff;
    border-top: 1px solid #ededed;
    border-bottom: 1px solid #ededed;
    text-align: center;
}

.our-product .tab-con .product-img-wrap {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    display: none;
}

.our-product .product-tab-list .product-item {
    height: 76px;
    padding: 27px 40px;
    box-sizing: border-box;
    border-bottom: 1px solid #ededed;
    color: #444;
    cursor: pointer;
    overflow: hidden;
}

.our-product .product-tab-list .product-item .item-tit {
    font-size: 16px;
}

.our-product .product-tab-list .product-item.selected {
    background: #1E49BC;
    color: #fff;
}

.our-product .product-tab-list .product-item .item-desc {
    padding-top: 20px;
    line-height: 28px;
}

.our-product .product-tab-list .selected {
    height: auto;
}

.successful-cases {
    background: #000A4E url('../images/cases-bg.png');
}

.successful-cases .title {
    color: #fff;
}

.successful-cases .content ul {
    display: flex;
    justify-content: space-between;
}

.successful-cases .case-item {
    background: #fff;
    border: 1px solid #ededed;
    border-radius: 8px;
    overflow: hidden;
}

.successful-cases .case-item p {
    padding: 23px 0;
    color: #444;
    font-size: 18px;
    text-align: center;
}

.successful-cases .case-item:hover p {
    color: #1E49BC;
}

.about-us .content {
    display: flex;
    align-items: center;
}

.about-us .introduce {
    padding: 40px;
    border: 1px solid #ededed;
    line-height: 28px;
    box-shadow: 0px 6px 20px 0px rgba(0, 0, 0, 0.10);
}

.about-us .introduce .about-fy {
    margin-bottom: 30px;
    color: #1E49BC;
    font-size: 16px;
    font-weight: bold;
}

.cooperative-partner {
    background: url(../images/partner-bg.png);
}

.cooperative-partner .content {
    text-align: center;
}

.cooperative-partner .card {
    display: inline-block;
    margin-right: 40px;
    width: 280px;
    height: 120px;
    text-align: center;
    line-height: 140px;
    background-color: #fff;
    border-radius: 4px;
    box-shadow: 0px 6px 20px 0px rgba(0, 0, 0, 0.10);
}

.cooperative-partner .card:last-child {
    margin-right: 0;
}

.footer {
    padding: 26px 0;
    background-color: #585858;
}

.footer .w {
    display: flex;
    align-items: center;
}

.footer .descriptions {
    margin-left: 80px;
    color: #B1B1B1;
}

.footer .descriptions-item {
    display: flex;
    margin-bottom: 10px;
}

.footer .descriptions-item__container .item-label {
    display: inline-block;
    width: 70px;
}

.footer .descriptions-item__container .item-content {
    display: inline-block;
    width: 300px;
}
.brown{
    color: #B1B1B1;
}