.top {
    width: 100%;
    background: #131217;
}

.top .warp {
    height: 55px;
    justify-content: flex-end;
}

.top .iconfont,
.top p,
.top a {
    color: rgba(255, 255, 255, 0.9);
}

.top a {
    font-size: 16px;
}

.nav-container {
    height: 130px;
    position: relative;
}

.nav-container .logo img {
    width: 502px;
    height: 26px;
}

.nav li {
    position: relative;
    z-index: 22;
}

.nav li .subnav {
    position: absolute;
    top: 24px;
    background: rgba(255, 255, 255, 0.9);
    box-sizing: border-box;
    box-shadow: 0px 5px 5px -4px #333;
    left: 50%;
    transform: translateX(-50%);
}

.nav li:hover .subnav {
    border-top: none;
    width: 150px;
    padding-top: 5px;
}

.nav .subnav li a {
    height: 0;
    overflow: hidden;
    transition: all 0.2s;
    font-size: 15px;
    line-height: 35px;
    text-align: center;
}

.nav>li:hover .subnav a {
    height: 35px;
}

.nav>li:hover .subnav a:hover {
    color: #db1e24;
}

.nav li a {
    position: relative;
    display: block;
    /* padding: 0 22px; */
    color: #333;
    font-size: 18px;
    height: 24px;
    width: 116px;
    text-align: center;
}

.nav>li:hover>a,
.nav li.active a {
    color: #db1e24;
    font-weight: bold;
}

.nav li .subnav li a {
    color: #333;
    font-weight: normal;
}

.nav li:hover a::after,
.nav li.active a::after {
    content: " ";
    display: block;
    position: absolute;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 0 5.5px 5px 5.5px;
    border-color: transparent transparent #db1e24;
    left: 50%;
    transform: translateX(-50%);
    bottom: -10px;
}

.banner {
    height: 550px;
}

.banner .swiper-slide {
    background-size: cover;
}

.banner .swiper-slide a {
    display: block;
    width: 100%;
    height: 550px;
}

.banner .swiper-pagination-bullet {
    width: 45px;
    height: 7px;
    border-radius: 0;
}

.banner .swiper-pagination-bullet-active {
    background: #db1e24;
}

.banner .swiper-container-horizontal>.swiper-pagination-bullets .swiper-pagination-bullet {
    margin: 0 7px;
}

.banner .swiper-pagination-bullet {
    background: #db1e24;
}

.title-container {
    width: 100%;
}

.title-container h2 {
    font-size: 30px;
    color: #333;
}

.title-container p {
    font-size: 16px;
    color: #999;
    margin-top: 5px;
}

.product-container {
    margin-top: 70px;
}

.product-titles {
    justify-content: center;
    margin-top: 50px;
}

.product-titles a {
    display: block;
    margin: 0 2px;
    border: 1px solid #e5e5e5;
    color: #666;
    padding: 0 20px;
    height: 45px;
    line-height: 45px;
    text-align: center;
    font-size: 16px;
}

.product-titles a.active,
.product-titles a:hover {
    color: #fff;
    background: #db1e24;
    border-color: #db1e24;
}

.product-list .swiper-slide ul {
    justify-content: flex-start;
    flex-wrap: wrap;
}

.product-list .swiper-slide li {
    width: 408px;
    margin-right: 70px;
    margin-top: 40px;
}

.product-list .swiper-slide li:nth-child(3n) {
    margin-right: 0;
}

.product-list li a {
    display: block;
    width: 408px;
    height: 292px;
    overflow: hidden;
    background: #f5f5f5;
    text-align: center;
    line-height: 292px;
}

.product-list li img {
    max-width: 100%;
    transition: all 0.2s;
    vertical-align: middle;
    max-height: 292px;
}

.product-list li p {
    text-align: center;
    margin-top: 20px;
    color: #333;
    font-size: 16px;
}

.product-list li:hover img {
    transform: scale(1.1);
}

.product-list li:hover p {
    color: #db1e24;
}

.adv {
    margin-top: 70px;
    display: block;
    width: 100%;
    height: 180px;
}

.case-container {
    padding-top: 70px;
}

.case-titles {
    width: 630px;
}

.case-titles-container {
    width: 100%;
    margin-top: 50px;
}

.case-titles-container::before,
.case-titles-container::after {
    content: " ";
    width: 477.5px;
    height: 1px;
    background: #cccccc;
}

.case-titles a {
    display: block;
    width: 130px;
    height: 45px;
    line-height: 45px;
    text-align: center;
    border: 1px solid #ccc;
    color: #999;
    font-size: 18px;
}

.case-titles a.active,
.case-titles a:hover {
    color: #fff;
    border-color: #db1e24;
    background: #db1e24;
}

.case-list {
    margin-top: 50px;
}

.case-list li .more {
    width: 94px;
    font-size: 16px;
    font-weight: bold;
}

.case-list li .more img {
    width: 20px;
    height: 12px;
}

.case-list li .more p {
    color: #db1e24;
}

.case-list li {
    display: block;
    width: 424px;
}

.case-list li .img {
    width: 424px;
    height: 254px;
    overflow: hidden;
    display: block;
}

.case-list li .img img {
    width: 424px;
    height: 254px;
    transition: all 0.2s;
}

.case-list li:hover .img img {
    transform: scale(1.2);
}

.case-list li h3 {
    margin-top: 35px;
    font-size: 20px;
    color: #333;
}

.case-list li p {
    margin-top: 20px;
    font-size: 16px;
    color: #666;
    line-height: 1.7;
    height: 50px;
}

.about-container {
    margin-top: 30px;
    padding: 70px 0;
    background: #f5f5f5;
}

.about-container .about-top img {
    width: 396px;
    height: 217px;
}

.about-text-container {
    width: 362px;
    height: 137px;
    background: #fff;
    position: relative;
    padding: 50px 55px;
    padding-top: 30px;
}

.about-text-container::before {
    content: " ";
    position: absolute;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 9px 20px 9px 0;
    border-color: transparent #fff transparent transparent;
    top: 50%;
    transform: translateY(-50%);
    left: -18px;
}

.about-text-container h3 {
    font-size: 20px;
    color: #333;
    position: relative;
}

.about-text-container h3::before {
    height: 20px;
    width: 3px;
    background: #db1e24;
    left: -10px;
    top: 3px;
    content: " ";
    display: block;
    position: absolute;
}

.about-text-container p {
    font-size: 16px;
    color: #666;
    line-height: 1.7;
    height: 78px;
    margin-top: 10px;
}

.about-title-container {
    width: 498px;
    align-items: flex-end;
    position: relative;
}

.about-title-container::before {
    height: 2px;
    width: 200px;
    background: #db1e24;
    left: -35px;
    top: 25px;
    content: " ";
    display: block;
    position: absolute;
}

.about-title-container h3 {
    font-size: 36px;
    color: #db1e24;
    letter-spacing: -3px;
}

.about-title-container p {
    text-align: right;
    font-size: 22px;
    color: #333;
    margin-top: 15px;
    line-height: 1.7;
}

.about-list {
    justify-content: flex-start;
    flex-wrap: wrap;
    margin-top: 50px;
}

.about-list li {
    margin-right: 50px;
}

.about-list li a {
    display: block;
    width: 422px;
    height: 286px;
    overflow: hidden;
}

.about-list li img {
    width: 422px;
    height: 286px;
    transition: all 0.2s;
}

.about-list li:hover img {
    transform: scale(1.1);
}

.about-list li:nth-child(3n) {
    margin-right: 0;
}

.about-text-container a {
    display: block;
    background: #db1e24;
    padding: 5px 7px;
    color: #fff;
    width: 70px;
    margin-top: 20px;
    text-align: center;
}

.news-container {
    padding: 70px 0;
}

.news-content {
    margin-top: 50px;
    align-items: flex-start;
}

.news-content-container {
    display: block;
    width: 578px;
}

.news-content-container .more {
    font-size: 16px;
    margin-top: 50px;
    display: block;
    width: 128px;
    height: 35px;
    line-height: 35px;
    text-align: center;
    color: #db1e24;
    border: 2px solid #db1e24;
    border-radius: 35px;
}

.news-content-container .img {
    width: 578px;
    height: 261px;
    overflow: hidden;
    display: block;
}

.news-content-container .img img {
    width: 578px;
    height: 261px;
    transition: all 0.2s;
}

.news-content-container:hover .img img {
    transform: scale(1.1);
}

.news-content-container h3 {
    margin-top: 35px;
    font-size: 20px;
    color: #333;
    font-weight: 500;
}

.news-content-container p {
    margin-top: 20px;
    font-size: 16px;
    color: #666;
    line-height: 1.7;
    height: 50px;
}

.news-list li {
    margin-bottom: 30px;
    border-bottom: 1px solid #efefef;
}

.news-list a {
    width: 714px;
    padding-left: 20px;
    padding-bottom: 30px;
    display: block;
    position: relative;
}

.news-list li h3 {
    font-size: 20px;
    color: #333;
    font-weight: bold;
}

.news-list li p {
    margin-top: 35px;
    font-size: 16px;
    color: #666;
    line-height: 1.7;
    height: 50px;
}

.news-list li .line {
    position: absolute;
    top: 48px;
    left: 0px;
}

.news-list li .line::before {
    width: 40px;
    height: 2px;
    content: ' ';
    background: #db1e24;
}

.news-list li .line::after {
    width: 22px;
    height: 2px;
    content: ' ';
    background: #333;
}

footer {
    padding-top: 50px;
    /* padding-bottom: 20px; */
    background: #282828;
}

footer .f-top {
    align-items: flex-start;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding-bottom: 30px;
}

.f-pro {
    width: 320px;
}

footer h3 {
    font-size: 18px;
    color: #fff;
    margin-bottom: 25px;
    font-weight: 400;
}

.f-list {
    flex-wrap: wrap;
}

.f-list a {
    display: block;
    width: 145px;
    font-size: 16px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 15px;
    margin-right: 15px;
}

.f-case .f-list a {
    width: 82px;
    justify-content: flex-start;
}

.wechart .img {
    width: 124px;
    height: 124px;
    overflow: hidden;
    background: #fff;
}

.wechart .img img {
    max-width: 120px;
    max-height: 120px;
}

.wechart p {
    width: 124px;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    margin-top: 5px;
}

footer .f-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 16px;
    line-height: 60px;
}

footer .f-bottom p a {
    color: #fff;
    opacity: .5;
}