@media only screen and (max-width: 1320px) {
  #index .banner .swiper-slide .box h1 {
    font-size: 48px;
  }
}
@media only screen and (max-width: 1020px) {
  body {
    font-size: 0.16rem;
  }
  .db {
    display: none;
  }
  .dn {
    display: block;
  }
  header {
    padding: 0 0.2rem;
    height: 1rem;
    position: static;
  }
  header .logo {
    width: 1.77rem;
  }
  header .menu {
    width: 0.5rem;
  }
  header .ul {
    width: 50%;
    position: fixed;
    top: 0;
    left: 0;
    background: #fff;
    z-index: 99;
  }
  header .ul ul {
    flex-direction: column;
  }
  header .ul ul li {
    margin: 0.4rem 0;
  }
  header .ul ul li a {
    font-size: 0.25rem;
  }
  header .ul ul .li-s a::after {
    background: #fff;
    margin-top: 0;
  }
  header .phone i img {
    width: 0.5rem;
  }
  header .phone span {
    font-size: 0.18rem;
  }
  footer {
    padding: 0.1rem 0;
    padding: 0.2rem;
  }
  footer .icon_box p {
    display: flex;
    align-items: center;
    margin: 0.1rem 0;
  }
  footer .icon_box p span {
    font-size: 0.16rem;
  }
  footer .icon_box p:nth-child(1) span {
    font-size: 0.3rem;
  }
  footer .icon_box i img {
    width: 0.52rem;
  }
  footer .ewm a {
    display: flex;
  }
  footer .ewm a img {
    width: 1.34rem;
    margin-right: 0.5rem;
  }
  footer .core {
    flex-direction: column;
  }
  footer .dl {
    flex-direction: column;
    width: 100%;
  }
  footer .dl dl {
    width: 100%;
    display: flex;
    margin: 0.1rem 0;
    flex-wrap: wrap;
  }
  footer .dl dl dt a {
    display: block;
  }
  footer .dl dl dd {
    margin: 0;
    margin: 0 0.2rem;
  }
  footer .dl dl dd a {
    display: block;
  }
  #index .banner .swiper-pagination span {
    width: 0.6rem;
    height: 0.1rem;
  }
  #index .banner .swiper-slide .box h1 {
    font-size: 0.4rem;
  }
  #index .banner .swiper-slide .box .yz {
    padding: 0.2rem;
    background-size: cover;
  }
  #index .banner .swiper-slide .box p {
    font-size: 0.16rem;
  }
  #index .about_us {
    margin: 0.2rem 0;
    flex-direction: column;
  }
  #index .about_us dl dd {
    line-height: 0.45rem;
    font-size: 0.16rem;
    margin: 0.2rem 0;
  }
  #index .about_us .nr_l {
    width: 100%;
  }
  #index .about_us .nr_l ul li a {
    height: auto;
    padding: 0.2rem;
  }
  #index .about_us .nr_l ul li img {
    width: 0.3rem;
  }
  #index .about_us .nr_l ul li p {
    font-size: 0.16rem;
  }
  #index .about_us .nr_r {
    margin-top: 0.2rem;
    top: 0;
  }
  #index .about_us .nr_r .title_t p {
    font-size: 0.25rem;
  }
  #index .about_us .nr_r .title_t p:nth-child(2) {
    font-size: 0.18rem;
  }
  #index .about_us .nr_r .title_t i img {
    width: 1rem;
  }
  #index .about_us .nr_r form {
    padding: 0.2rem 0.43rem;
  }
  #index .about_us .nr_r form textarea {
    height: 2rem;
  }
  #index .about_us .nr_r form div {
    margin-top: 0.34rem;
    padding: 0.16rem 0;
  }
  #index .about_us .nr_r form .submit {
    width: 90%;
    margin: 0 auto;
    height: 0.8rem;
    font-size: 0.16rem;
  }
  #index .renovation_case .nav {
    flex-wrap: wrap;
    margin: 0.2rem 0;
  }
  #index .renovation_case .nav a {
    font-size: 0.16rem;
    margin: 0.2rem;
  }
  #index .renovation_case ul li {
    width: 44%;
    margin: 0.2rem !important;
  }
  #index .renovation_case ul .yz .box a {
    margin: 0.2rem 0;
  }
  #index .renovation_case ul .yz .box a img {
    width: 0.44rem;
  }
  #index .renovation_case ul .yz .box h1 {
    font-size: 0.3rem;
  }
  #index .renovation_case ul .yz .box p {
    margin: 0.1rem 0;
  }
  #index .renovation_case ul .yz .box p span {
    font-size: 0.16rem;
  }
  #index .special_features ul {
    flex-wrap: wrap;
    margin: 0.2rem 0;
    padding: 0.2rem;
  }
  #index .special_features ul li {
    margin-top: 0.5rem;
    height: auto;
    padding: 0.2rem;
    width: 48%;
  }
  #index .special_features ul li .span_box {
    margin: 0.2rem 0;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  #index .special_features ul li .span_box span {
    font-size: 0.18rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  #index .special_features ul li .span_box .color {
    font-size: 0.35rem;
  }
  #index .special_features ul li i {
    width: 1.19rem;
    height: 1.19rem;
    margin-top: -0.6rem;
  }
  #index .special_features ul li i img {
    width: 0.66rem;
  }
  #index .special_features ul li p {
    width: 90%;
  }
  #index .company p {
    font-size: 0.15rem;
  }
  #index .company h3 {
    font-size: 0.35rem;
    font-weight: bold;
  }
  #index .company .time {
    font-size: 0.14rem;
  }
  #index .company .title_t {
    margin: 0.2rem 0;
  }
  #index .company .title_t h1 {
    font-size: 0.22rem;
  }
  #index .company .title_t a {
    font-size: 0.14rem;
  }
  #index .company .nr {
    flex-direction: column;
  }
  #index .company .nr .nr_l {
    width: 100%;
  }
  #index .company .nr .nr_l .xw_title {
    margin: 0.2rem 0;
  }
  #index .company .nr .nr_r {
    width: 100%;
  }
  #case .nr {
    flex-direction: column-reverse;
  }
  #case .nr .nr_r {
    width: 100%;
  }
  #case .nr .nr_l {
    width: 100%;
  }
  #case .like {
    padding: 0.2rem 0;
  }
  #case .like .t {
    margin: 0.2rem 0;
  }
  #case .like .t h5 {
    font-size: 0.4rem;
  }
  #case .like .t a {
    font-size: 0.16rem;
  }
  #case .like ul li {
    width: 48%;
  }
  #case .like ul li h1 {
    font-size: 0.16rem;
  }
  #case .like ul li .text span {
    font-size: 0.14rem;
  }
  #case .like ul li .text img {
    width: 0.3rem;
  }
  #case .like ul li .box {
    padding: 0.2rem;
  }
  #quality .cooperation {
    padding: 0.2rem 0;
  }
  #quality .cooperation .core {
    margin: 0.2rem 0;
  }
  #quality .cooperation .core a {
    width: 28%;
    margin: 0.2rem !important;
  }
  #quality .list li {
    width: 28%;
    margin: 0.2rem !important;
  }
  #quality .list li p {
    margin: 0.2rem 0;
    font-size: 0.16rem;
  }
  #quality .nav {
    flex-wrap: wrap;
    justify-content: flex-start;
  }
  #quality .nav a {
    margin: 0.05rem 0.2rem;
    width: 2rem;
    font-size: 0.16rem;
    padding: 0 0.1rem;
  }
  #company_honor .list {
    padding: 0 0.2rem;
  }
  #company_honor .list li a {
    flex-direction: column;
  }
  #company_honor .list li a img {
    width: 100%;
  }
  #company_honor .list .li_r {
    margin-top: 0.5rem;
  }
  .news_d {
    margin: 0.2rem 0;
  }
  .news_d .line {
    margin: 0.2rem 0;
  }
  .news_d dl {
    margin: 0.2rem;
  }
  .news_d .pian {
    padding: 0.2rem;
  }
  .news_d h1 {
    font-size: 0.35rem;
    margin: 0.2rem 0;
  }
  .construction_flow ul li i img {
    width: 0.64rem;
    height: 0.6rem;
  }
  .construction_flow ul p {
    margin: 0.1rem 0;
    font-size: 0.16rem;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .paging {
    margin: 0.5rem 0;
    flex-wrap: wrap;
  }
  .paging div {
    display: none;
  }
  .paging a {
    font-size: 0.14rem;
  }
  .paging span {
    font-size: 0.14rem;
  }
  .pian {
    flex-direction: column;
  }
  .pian > div {
    margin: 0.2rem 0;
  }
  .pian a {
    font-size: 0.14rem;
  }
  .title_1 .line {
    margin: 0.2rem auto;
  }
  .title_1 h1 {
    font-size: 0.4rem;
  }
  .title_1 p {
    font-size: 0.2rem;
    margin: 0.2rem 0;
  }
  .title {
    margin: 0.2rem 0;
  }
  .title h1 {
    font-size: 0.36rem;
    margin: 0.2rem 0;
  }
  .title p {
    font-size: 0.18rem;
  }
  .contact-banner .swiper-button-next {
    right: 0;
  }
  .contact-banner .swiper-button-prev {
    left: 0;
  }
  .contact-banner .swiper {
    width: 90%;
  }
  .contact-banner .swiper-slide {
    flex-direction: column;
  }
  .contact-banner .swiper-slide > i {
    width: 100%;
  }
  .contact-banner .swiper-slide form {
    padding: 0.2rem;
    width: 100%;
  }
  .contact-banner .swiper-slide form .input_box input {
    width: 100%;
  }
  .contact-banner .swiper-slide form h5 {
    font-size: 0.2rem;
    margin: 0.2rem 0;
  }
  .contact-banner .swiper-slide form .lien {
    margin: 0.1rem 0;
  }
  .contact-banner .swiper-slide form h4 {
    font-size: 0.3rem;
  }
  .contact-banner .swiper-slide form .icon_box {
    margin: 0.2rem 0;
  }
  .join_us {
    padding: 0.2rem 0;
    margin: 0.2rem 0;
  }
  .join_us .rotate img {
    width: 0.2rem;
  }
  .join_us .zxns {
    padding: 0.2rem 0;
  }
  .join_us .zxns .title {
    padding-left: 0.46rem;
  }
  .join_us .zxns .title span {
    font-size: 0.16rem;
    flex: 1 !important;
  }
  .join_us .zxns ul li .box {
    padding: 0.2rem;
  }
  .join_us .zxns ul li .box dd {
    font-size: 0.14rem;
  }
  .join_us .zxns ul li .box .text {
    flex-wrap: wrap;
  }
  .join_us .zxns ul li .box .text > span {
    margin-right: 0.5rem;
    margin-top: 0.2rem;
  }
  .join_us .zxns ul li .box .text span {
    font-size: 0.12rem;
  }
  .join_us .zxns ul li .df {
    padding-left: 0.46rem;
  }
  .join_us .zxns ul li .df span {
    font-size: 0.16rem;
    flex: 1 !important;
  }
}