@charset "UTF-8";

*,
:after,
:before {
    box-sizing: border-box;
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html,
body {
    font-size: 12px;
    font-family: "微软雅黑", sans-serif;
    color: #333;
}

ul,
li {
    list-style: none;
}

a {
    color: #242424;
    text-decoration: none;
}

a:hover {
    text-decoration: none;
}

body,
p,
dl,
dt,
dd,
ul,
h1,
h2,
h3,
h4,
h5,
h6,
h7 {
    margin: 0px;
    padding: 0px;
}

em {
    font-style: normal;
}

i.fa-tag {
    transform: rotate(180deg);
    transform: scaleX(-1);
}

.pc {
    display: block;
}

.wap {
    display: none;
}

/* 公共css */
.contents {
    margin: 0 5%;
    width: 90%;
}

.content {
    margin: 0 10%;
    width: 80%;
}

.flexer {
    display: flex;
    display: -ms-flexbox;

}

ul.project-list .flexer {
    flex: 1;
}



.f-f-w {
    flex-wrap: wrap;
    -ms-flex-wrap: wrap;
}

.j-c-c {
    justify-content: center;
    -ms-flex-pack: center;
}

.a-i-c {
    align-items: center;
    -ms-flex-align: center;
}

.j_c_s_b {
    justify-content: space-between;
    -ms-flex-pack: space-between;
}

.grid {
    display: grid;
}

h2.title {
    font-size: 24px;
    margin-bottom: 20px;
    color: #333;
}

h2.title span {
    font-size: 18px;
    color: #b5b4b4;
    text-transform: uppercase;
    margin-left: 5px;
}

p.subtitle {
    font-size: 14px;
    line-height: 24px;
    margin-bottom: 87px;
    color: #686868
}

/* 头部css */

.top {
    background-color: #1b1b1b;
    color: #fff;
}

.subtopic {
    line-height: 35px;
    flex: 1 1 0%;
}

.subtopic a {
    color: #fff;
}

.contact,
.media {
    font-size: 14px;
}

.contact i {
    margin-right: 5px;
}

.contact span {
    margin-right: 15px;
}

.media a {
    margin-left: 25px;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.media a:hover span {
    display: block;
}

.media span {
    display: none;
    position: absolute;
    padding: 2px;
    background-color: #fff;
    left: -100%;
    top: 30px;
    z-index: 99999;
}

.media img {
    width: 100px;
}

.media svg {
    width: 20px;
    height: 20px;
}

.media i {
    color: #fff;
    font-size: 18px;
}

.logo {
    flex: 1 1 0%;
}

.logo img {
    max-height: 100%;
    width: 50%;
}

.logo .biaoti {
    font-size: 18px;
    float: left;
    /* line-height: 53px; */
    padding-left: 10px;
    color: #767676;
    width: 50%;
}

.lang {
    margin-left: 1%;
}

nav {
    height: 85px;
    /* margin-right: 30px */
}

nav .nav li {
    text-align: center;
    margin: 0 24px;
    height: 85px;
}

nav .nav li span {
    display: block;
    font-size: 14px;
    color: #1b1b1b;
    font-weight: 600;
    line-height: 20px;
    margin-top: 22px
}

nav .nav li em {
    color: #85898a;
    text-transform: uppercase;
    line-height: 20px
}

nav .nav li ul {
    display: none;
}

nav .nav li:hover {
    color: #1b1b1b
}

nav .nav li a:hover {
    color: #1b1b1b
}

nav .nav li:hover span {
    color: #cf1b1c;
    ;
}

nav .nav li:hover em {
    color: #cf1b1c;
    ;
}

nav .nav li:hover ul {
    display: block;
    position: absolute;
    width: 100%;
    top: 117px;
    background: #f5f5f5;
    left: 0;

    color: #000;
    z-index: 99999;
 
}

.xiala {
    width: 100%;
    background: #f5f5f5;
    min-height: 310px;
    width: 1400px;
    margin: 0px auto;
    height: auto !important;
}

.xiala2 {
    width: 1400px;
    margin: 0px auto;
    position: relative
}

.erji {
    width: 800px;
    margin-left: 100px;
    float: left;
    float: left;
    position: relative
}

.erji ul {
    width: 800px;
    float: left;
    margin-top: -50px;
}

.erji ul li {
    width: 240px;
    float: left;
    line-height: 44px;
    border-bottom: #999 1px dotted;
    text-align: left;
    margin-left: 0px;
    height: 44px
}

.erji ul li a {
    font-size: 14px
}

.erji ul li:hover {
    width: 240px;
    float: left;
    line-height: 47px;
    border-bottom: #999 1px dotted;
    text-align: left;
    margin-left: 0px;
    color: #1b1b1b;
}

.erji ul li a:hover {
    font-size: 14px;
    color: #cf1b1c;
}

.erji h2 {
    width: 600px;
    height: 26px;
    float: left;
    margin-top: 20px;
    font-size: 26px;
    font-weight: bold;
    line-height: 26px;
    text-align: left
}

.tupian {
    width: 400px;
    margin-left: 100px;
    float: left;
   
    float: left;
}

.tupian img {
    width: 400px;
    
    margin-top: 50px
}

.search {
    background-color: #fff;
}

.search input {
    border: 0;
    line-height: 30px;
    width: 80px;
}

#myButton {
    width: 80px;
    transition: width 0.5s ease;
}

#myButton.large {
    width: 200px;
}

.search button {
    font-size: 18px;
    border: 0;
    background-color: #fff;
}

.lang a {
    width: 24px;
    height: 24px;
    -moz-border-radius: 100%;
    -webkit-border-radius: 100%;
    border-radius: 100%;
    background-color: #1b1b1b;
    color: #fff;
    text-align: center;
    line-height: 24px;
    font-weight: 700;
}

#banner {
    position: relative;
}

.swiper-container {
    z-index: 1;
}

.swiper-slide {
    background-position: 50% 0;
}

.swiper-slide a {
    display: block;
    height: 830px;
}

.swiper-container-horizontal>.swiper-pagination-bullets {
    bottom: 24px;
}

.swiper-pagination-bullet {
    width: 11px;
    height: 11px;
    border-width: 1px;
    border-style: solid;
    opacity: 1;
}

.gray .swiper-pagination-bullet {
    border-color: #f7070a;
    background-color: #f7070a;
}

.gray .swiper-pagination-bullet-active {
    background-color: transparent;
}

.white .swiper-pagination-bullet {
    border-color: #fff;
    background-color: #fff;
}

.white .swiper-pagination-bullet-active {
    background-color: transparent;
}

.swiper-container-horizontal>.swiper-pagination-bullets .swiper-pagination-bullet {
    margin: 0 8px;
}

/* 主体css */
article.banner .swiper {
    width: 100%;
    height: 830px;
}

article.banner .swiper-slide {
    text-align: center;
    font-size: 18px;
    background: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
}

article.banner .swiper-slide a {
    width: 100%;
    height: 100%;
    position: relative;
}

article.banner .swiper-slide img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

article.banner .swiper-pagination .swiper-pagination-bullet {
    background-color: #fff;
    width: 11px;
    height: 11px;
}

article.banner .swiper-pagination .swiper-pagination-bullet.swiper-pagination-bullet-active {
    background-color: #f7070a;
}

article.project {
    background-color: #f1f1f1;
}

.project-list {
    justify-content: space-around;
    padding: 130px 0 105px;
}

.project-list li {
    border-right: 1px solid #ccc;
}

.project-list li:last-child {
    border: 0;
}

.project-list .imgs {
    margin-left: 10%;
    margin-right: 5%;
}

.project-list .text {
    width: 50%;
}

.project-list .text h3 {
    font-size: 25.13px;
    margin-bottom: 10px;
    white-space: nowrap;
    color: #414141;
}

.project-list .text span {
    font-size: 19.55px;
    color: #1b1b1b;
}

.project-list .text p {
    font-size: 16px;
    line-height: 24px;
    color: #1b1b1b;
}

article.video {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    height: 978px;
    border-top: 2px solid #818181;
    padding-top: 95px;
}

article.video h2.title {
    text-align: center;
    color: #fff;
    font-size: 30px;
    margin-bottom: 90px;
}

article.video em.subtitle {
    text-align: center;
    color: #fff;
    font-size: 28px;
    display: block;
    margin-bottom: 10px;
}

.video-box {
    height: 579px;
    justify-content: space-between;
}

.video-box .swiper {
    width: 100%;
    height: 100%;
}

.video-box .swiper-slide {
    text-align: center;
    font-size: 18px;
    background: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
}

.video-box .swiper-slide img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-box .swiper {
    width: 100%;
    height: 300px;
    margin-left: auto;
    margin-right: auto;
}

.video-box .swiper-slide {
    background-size: cover;
    background-position: center;
}

.video-box .mySwiper2 {
    height: 100%;
    width: 904px;
    margin: 0;
}

.video-box .mySwiper {
    height: 100%;
    width: 533px;
    box-sizing: border-box;
    margin: 0;
}

.video-box .mySwiper .swiper-slide {
    width: 100%;
    height: 100%;
    opacity: 0.4;
}

.video-box .mySwiper .swiper-slide-thumb-active {
    opacity: 1;
}

.video-box .swiper-slide img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-box .swiper .swiper-button-prev,
.video-box .swiper .swiper-button-next {
    width: 50px;
    height: 50px;
    border: 2px solid #fff;
    -moz-border-radius: 100%;
    -webkit-border-radius: 100%;
    border-radius: 100%;
}

.video-box .swiper .swiper-button-prev:after,
.video-box .swiper .swiper-button-next:after {
    font-size: 24px;
    color: #fff;
    transform: rotate(90deg);
}

.video-box .swiper .swiper-button-prev {
    left: 50%;
    top: 30px;
    transform: translateX(-50%);
}

.video-box .swiper .swiper-button-next {
    left: 50%;
    bottom: 30px;
    top: auto;
    transform: translateX(-50%);
}

article.solution {
    background-color: #f2f2f2;
    padding-top: 100px;
    padding-bottom: 130px;
}

.solution-box {
    height: 650px;
    justify-content: space-between;
}

.solution-box .swiper {
    width: 100%;
    height: 100%;
}

.solution-box .swiper-slide {
    text-align: center;
    font-size: 18px;
    background: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #fff;
}

.solution-box .swiper {
    width: 100%;
    margin-left: auto;
    margin-right: auto;
}

.solution-box .swiper-slide {
    background-size: cover;
    background-position: center;
}

.solution-box .mySwiper {
    width: 50%;
    box-sizing: border-box;
    margin: 0 30px 0 0;
}

.solution-box .mySwiper .swiper-wrapper {
    height: 452px;
}

.solution-box .mySwiper .swiper-slide {
    display: flex;
    justify-content: center;
    align-items: center;
    height: calc((100% - 30px) / 2) !important;
    opacity: 0.4;
    border: 1px solid #e6e6e6;
}

.solution-box .mySwiper .swiper-slide .box {
    padding: 5px;
    position: relative;
    width: 100%;
    height: 100%;
}

.solution-box .mySwiper .swiper-slide .subst {
    position: absolute;
    top: 20px;
    left: 20px;
}

.solution-box .mySwiper .swiper-slide .subst .imgs {
    width: 35px;
    height: 35px;
    background-repeat: no-repeat;
    background-position: top left;
}

.solution-box .mySwiper .swiper-slide .subst .text {
    text-align: left;
}

.solution-box .mySwiper .swiper-slide .subst .text h3 {
    font-size: 15px;
}

.solution-box .mySwiper .swiper-slide .subst .text p {
    font-weight: 400;
    font-size: 13px;
}

.solution-box .mySwiper .swiper-slide .log {
    width: 95px;
    height: 25px;
    position: absolute;
    right: 5px;
    bottom: 5px;
    text-align: center;
    display: inline-block;
}

.solution-box .mySwiper .swiper-slide .log:before {
    content: '';
    display: inline-block;
    height: 100%;
    vertical-align: middle;
}

.solution-box .mySwiper .swiper-slide .log img {
    max-height: 100%;
    max-width: 100%;
    display: inline-block;
    vertical-align: middle;
}

.solution-box .mySwiper .swiper-slide-thumb-active {
    opacity: 1;
    background-color: #cf1b1c;
}

.solution-box .mySwiper .swiper-slide-thumb-active .text h3,
.solution-box .mySwiper .swiper-slide-thumb-active .text p {
    color: #fff;
}

.solution-box .mySwiper .swiper-slide-thumb-active .subst .imgs {
    background-position: top right;
}

.solution-box .mySwiper2 {
    width: 50%;
    margin: 0;
}

.solution-box .mySwiper2 .swiper-wrapper {
    height: auto;
    margin-top: 55px;
}

.solution-box .mySwiper2 .swiper-slide .solution-list ul {
    flex-wrap: wrap;
}

.solution-box .mySwiper2 .swiper-slide .solution-list li {
    width: 49.5%;
    margin-right: 1%;
    margin-bottom: 1%;
}

.solution-box .mySwiper2 .swiper-slide .solution-list li:nth-child(2n) {
    margin-right: 0;
}

.solution-box .mySwiper2 .swiper-slide .solution-list li:nth-child(n+2) {
    margin-bottom: 0;
}

.solution-box .mySwiper2 .swiper-slide .solution-list li a {
    width: 100%;
    height: 290px;
    display: block;
}

.solution-box .mySwiper2 .swiper-slide .solution-list li a:before {
    content: '';
    display: inline-block;
    height: 100%;
    vertical-align: middle;
}

.solution-box .mySwiper2 .swiper-slide .solution-list li a img {
    height: 100%;
    width: 100%;
    display: inline-block;
    vertical-align: middle;
    object-fit: cover;
}

article.case {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding-top: 110px;
    padding-bottom: 130px;
}

article.case h2.title,
article.case p.subtitle {
    color: #fff;
}

article.case p.subtitle {
    width: 50%;
}

.case-list ul {
    flex-wrap: wrap;
}

.case-list ul li {
    width: 31.666%;
    margin-right: 2.4666%;
    position: relative;
    height: 0;
    padding-bottom: 268px;
    margin-bottom: 32px;
    overflow: hidden;
}

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

.case-list ul li:nth-child(n+3) {
    margin-bottom: 0;
}

.case-list ul li img {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 50%;
    left: 50%;
    transform: translateY(-50%) translateX(-50%);
    object-fit: cover;
}

.case-list ul li h3 {
    position: absolute;
    display: block;
    text-align: center;
    bottom: 30px;
    color: #fff;
    width: 100%;
    font-size: 16px;
}

.case-list ul li .more {
    display: none;
    position: absolute;
    width: 100%;
    height: 100%;
}

.case-list ul li:hover .more {
    display: block;
}

.case-list ul li .more b {
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: #000;
    filter: alpha(opacity=50);
    -moz-opacity: 0.5;
    -khtml-opacity: 0.5;
    opacity: 0.5;
}

.case-list ul li .more span {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translateY(-50%) translateX(-50%);
    z-index: 99;
    color: #fff;
    padding: 5px 15px;
    font-size: 14px;
    border: 1px solid #fff;
    -moz-border-radius: 15px;
    -webkit-border-radius: 15px;
    border-radius: 15px;
}

.case-list ul li.view {
    background-color: #cf1b1c;
}

.case-list ul li.view a {
    padding-bottom: 268px;
    height: 0;
}

.case-list ul li.view em {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translateY(-50%) translateX(-50%);
    color: #fff;
    font-size: 24px;
}

article.news {
    background-color: #f2f2f2;
    padding-top: 100px;
    padding-bottom: 130px;
    border-top: 2px solid #e2e3dd;
}

article.brand {
    background-size: cover;
    background-position: center right;
    background-repeat: no-repeat;
    padding: 65px 0;
}

article.brand h2.title,
article.brand p.subtitle {
    color: #fff;
}

.brand-box {
    width: 62%;
}

.brand-box .brand-list {
    flex-wrap: wrap;
}

.brand-box .brand-list li {
    width: 20%;
    margin-right: 6.5%;
    margin-bottom: 3%;
    background-color: #fff;
}

.brand-box .brand-list li a {
    display: block;
    height: 0;
    width: 100%;
    padding-bottom: 100%;
    position: relative;
}

.brand-box .brand-list li a img {
    position: absolute;
    max-width: 100%;
    max-height: 100%;
    top: 50%;
    left: 50%;
    transform: translateY(-50%) translateX(-50%);
}

.brand-box .brand-list li:nth-child(4n+4) {
    margin-right: 0;
}

.brand-box .brand-list li:nth-child(n+5) {
    margin-bottom: 0;
}

.b_block {
    display: block
}

.b_none {
    display: none
}

.brand-box .brand-list li a:hover .b_none {
    display: block;
}

article.contact {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.contact-box {
    max-height: 539px;
    height: 539px;
    justify-content: center;
    align-items: center;
}

.contact-box .contact-text h2.title {
    color: #202d33;
}

.contact-box .contact-text .more {
    text-align: center;
}

.contact-box .contact-text .more a {
    color: #202d33;
    font-size: 14px;
    padding: 8px 60px 8px 30px;
    border: 1px solid #fff;
    font-weight: 700;
    -moz-border-radius: 25px;
    -webkit-border-radius: 25px;
    border-radius: 25px;
    display: inline-block;
    position: relative;
}

.contact-box .contact-text .more i {
    position: absolute;
    color: #fff;
    font-size: 18px;
    margin-right: 0;
    -moz-border-radius: 100%;
    -webkit-border-radius: 100%;
    border-radius: 100%;
    padding: 8px;
    background-color: #cf1b1c;
    right: 0;
    top: 0;
}

.contact-box .contact-text .more i:before {
    width: 19px;
    height: 19px;
    display: block;
}

footer {
    background-color: #1b1b1b;
    padding-bottom: 65px;
    padding-top: 95px;
    overflow: hidden;
}

.foot {
    justify-content: space-between;
}

.foot-left {
    width: 27%;
}

.foot-left .foot-left-box {}

.foot-left .foot-logo {

    margin-bottom: 30px;
    height: 75px;
    display: flex;
    position: relative;
}

.foot-left .foot-logo img {
    width: 135px;

    margin-top: 15px;
}

.foot-left .foot-logo span {
    font-size: 14px;
    color: #b4b4b4;
    width: 240px;
    display: block;
}

.foot-left .foot-add p {
    color: #b4b4b4;
    margin-bottom: 20px;
    font-size: 14px;
}

.foot-right {
    width: 70%;
}

.foot-nav ul {
    justify-content: flex-end;
    position: relative;
}

.foot-nav ul:before {
    content: '';
    position: absolute;
    height: 1px;
    width: 120%;
    bottom: 0;
    background-color: #757575;
    right: -20%;
}

.foot-nav ul li {
    margin-left: 25px;
    position: relative;
}

.foot-nav ul li a {
    color: #b5b5b5;
    font-size: 15px;
    line-height: 30px;
    display: block;
}

.foot-nav ul li:hover:before {
    content: '';
    position: absolute;
    height: 2px;
    background-color: #fff;
    width: 100%;
    bottom: 0;
}

.foot-medium {
    height: 100%;
    align-items: center;
}

.foot-medium .foot-tel {
    flex: 1 1 0%;
    justify-content: center;
    font-size: 30px;
    color: #b5b5b5;
    font-weight: 700;
}

.foot-medium .foot-tel i {
    margin-top: 8px;
    margin-right: 5px;
}

.foot-medium .foot-soc {
    justify-content: flex-end;
    align-items: center;
}

.foot-medium .foot-soc a {
    margin-left: 20px;
    width: 28px;
    height: 28px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.foot-medium .foot-soc a.foot-code {
    width: 71px;
    height: 71px;
}

.foot-medium .foot-soc a.foot-code img {
    width: 100%;
    height: 100%;
}

.foot-medium .foot-soc svg {
    width: 100%;
}

.foot-medium .foot-soc i {
    font-size: 24px;
    color: #b5b5b5;
}

.dweixin {
    position: relative;
}

.dweixin span,
.dfenxiang span {
    display: none;
    padding: 5px;
    background-color: #fff;
}

.dweixin span img {
    width: 100px;
}

.dweixin:hover span {
    display: block;
    position: absolute;
    bottom: 28px;
}

.dfenxiang {
    position: relative;
}

.dfenxiang span img {
    width: 100px !important;
}

.dfenxiang:hover span {
    display: block;
    position: absolute;
    bottom: 73px;
}


/*固定的悬浮窗*/
.win_service {
    position: fixed;
    z-index: 9999999;
    top: 500px;
    right: -127px;
    cursor: pointer;
    transition: all .3s ease;
}

.win_box ul li {
    width: 180px;
    height: 53px;
    font: 16px/53px 'Microsoft YaHei';
    color: #fff;
    text-indent: 54px;
    margin-bottom: 3px;
    border-radius: 3px;
    transition: all .5s ease;
    overflow: hidden;
    background-color: #bdbdbd;
    background-repeat: no-repeat;
    background-size: 30px;
    background-position: 12px 12px;
}

.win_box ul li a {
    color: #fff;
}

.win_box #top {
    background-color: #cf1b1c;
    background-image: url(../images/top.png);
}

.win_box .ercode {
    background-image: url(../images/wechat.png);
}

.ercode_imgs {
    padding: 0 29px 25px;
    width: 100%;
}

.item_01 {
    background-image: url(../images/inform.png);
}

.item_02 {
    background-image: url(../images/email.png);
}

.item_03 {
    background-image: url(../images/tel.png);
    background-size: 40px !important;
    background-position: 8px 6px !important;
}

@media only screen and (max-width: 1855px) {
    .products .products_list li {
        margin-right: 1.6em;
    }


}

@media only screen and (max-width: 1600px) {
    .video-box .mySwiper2 {
        width: 60%;
    }

    .video-box .mySwiper {
        width: 38%;
    }
    
    .foot-left .foot-logo img {
        top: 60%;
        width: 30%;
    }

    .foot-left .foot-logo span {
        width: 70%;
    }
}

@media only screen and (max-width: 1440px) {
    nav .nav li {
        margin: 0 1.0875em;
    }

    .project-list .imgs {
        margin-left: 5%;
    }

    .project-list .text {
        width: 60%;
    }

    .foot-left .foot-logo img {
        top: 50%;
        width: 45%;
    }
}

@media only screen and (max-width: 1366px) {
    #myButton.large {
        width: 140px;
    }

    .foot-left .foot-logo img {
        max-width: 100%;
        width: auto;
        top: 5px;
        left: -30px;
    }

    .foot-left .foot-logo span {
        width: 100%;
        padding-top: 12%;
    }

}

@media only screen and (max-width: 1281px) {
    #myButton.large {
        width: 80px;
    }


}

@media only screen and (max-width: 1025px) {
    #myButton.large {
        width: 80px;
    }

    .pc {
        display: none;
    }

    .wap {
        display: block;
    }

    header {
        position: relative;
    }

    header .contents {
        margin: 0;
    }

    .logo a {
        padding: 1.2875em;
        width: 100%;
        justify-content: flex-start;
    }

    .project-list .imgs {
        width: 25%;
        margin: 0 3%;
    }

    .project-list .imgs img {
        width: 100%;
    }

    .project-list li {
        flex: 1 1 0%;
    }

    .project-list .text h3 {
        font-size: 1.6em;
    }

    .project-list .text span {
        font-size: .875em;
        margin-left: .475em;
    }

    .project-list .text p {
        font-size: 1.0875em;
    }

    article.video.pc {
        display: block;
    }

    article.video.wap {
        display: none;
    }

    .solution-box {
        height: auto;
    }

    p.subtitle {
        margin-bottom: 2.4em;
    }

    .solution-box .mySwiper .swiper-wrapper {
        height: 300px;
    }

    .solution-box .mySwiper .swiper-slide .log {
        display: none;
    }

    .solution-box .mySwiper2 .swiper-slide .solution-list li a {
        height: 212.5px;
    }

    .news_subject .hd li dl dd p,
    .bd_text dl dd p {
        height: 40px;
        overflow: hidden;
    }

    .news_subject .hd li:nth-child(n+4) {
        display: none;
    }

    .news_subject .hd li:nth-child(3) {
        margin-bottom: 0;
    }


}

@media only screen and (max-width: 768px) {
    html {
        font-size: .875em;
    }

    .pc {
        display: none;
    }

    .wap {
        display: block;
    }

    article.video.pc {
        display: none;
    }

    article.video.wap {
        display: block;
    }

    .contents,
    .content {
        margin: 0 .875em;
        width: auto;
    }

    h2.title {
        font-size: 1.5875em;
    }

    h2.title span {
        font-size: .875em;
    }

    p.subtitle {
        font-size: 1.2875em;
        margin-bottom: .875em;
    }

    header {
        position: relative;
    }

    header .contents {
        margin: 0;
    }

    .logo a {
        padding: 1.2875em;
    }

    .logo img {
        float: left;
    }

    article.banner .swiper {
        height: auto;
    }

    article.banner .swiper-slide img {
        max-width: 100%;
    }

    .project-list {
        flex-wrap: wrap;
        padding: 1.5875em 0;
        flex-direction: column;
    }

    .project-list .imgs {
        margin-left: 0;
    }

    .project-list .text {
        width: auto;
    }

    .project-list .text h3 {
        font-size: 1.4875em;
        margin-bottom: .875em;
    }

    .project-list .text span {
        font-size: .675em;
    }

    .project-list .text p {
        font-size: 1.2875em;
    }

    .project-list li {
        width: 100%;
        border-right: 0;
        padding: 1.5em 0;
    }

    article.video {
        height: auto;
        padding-top: 5em;
    }

    article.video em.subtitle {
        font-size: 1.875em;
        margin-bottom: 1.2875em;
    }

    article.video h2.title {
        font-size: 2.5875em;
        margin-bottom: 1.6875em;
    }

    .video-box {
        flex-wrap: wrap;
        height: auto;
        padding-bottom: 5.0875em;
    }

    .video-box .mySwiper {
        order: -1;
        width: 100%;
        height: 10vw;
        margin-bottom: 1.2875em;
    }

    .video-box .swiper .swiper-button-prev,
    .video-box .swiper .swiper-button-next {
        width: 2.4875em;
        height: 2.4875em;
        transform: translateY(0) translateX(0);
    }

    .video-box .swiper .swiper-button-prev:after,
    .video-box .swiper .swiper-button-next:after {
        font-size: 1.0875em;
        transform: rotate(-180deg);
    }

    .video-box .swiper .swiper-button-prev {
        left: auto;
        right: 1.5875em;
        top: 50%;
    }

    .video-box .swiper .swiper-button-next {
        left: 1.5875em;
        right: auto;
        top: 50%;
    }

    .video-box .mySwiper2 {
        width: 100%;
        height: 100%;
    }

    .video-box .mySwiper2 .swiper-slide #bgvid {
        width: 100%;
    }

    article.solution {
        padding: 5em 0;
    }

    .solution-box {
        flex-wrap: wrap;
        height: auto;
    }

    .solution-box .mySwiper {
        width: 100%;
        margin: 0;
    }

    .solution-box .mySwiper .swiper-wrapper {
        height: 50vw;
    }

    .solution-box .mySwiper2 {
        width: 100%;
    }

    .solution-box .mySwiper2 .swiper-wrapper {
        margin-top: 1.2875em;
    }

    .solution-box .mySwiper2 .swiper-slide .solution-list li a {
        height: 38vw;
    }

    .solution-box .mySwiper2 .swiper-slide .solution-list li a img {
        object-fit: cover;
    }

    .solution-box .mySwiper .swiper-slide .subst .imgs,
    .solution-box .mySwiper .swiper-slide .log {
        display: none;
    }

    .solution-box .mySwiper .swiper-slide .subst {
        position: static;
    }

    article.case {
        padding: 5em 0;
    }

    .case-list ul li {
        width: 49%;
        padding-bottom: 45vw;
        margin-right: 2%;
        margin-bottom: 2%;
    }

    .case-list ul li img {
        width: 100%;
        height: 100%;
    }

    .case-list ul li:nth-child(2n+2),
    article.case .case-list ul li.view {
        margin-right: 0;
    }

    .case-list ul li:nth-child(3n+3) {
        margin-right: 2%;
    }

    .case-list ul li:nth-child(n+3) {
        margin-bottom: 2%;
    }

    .case-list ul li .more span {
        font-size: .875em;
    }

    .case-list ul li.view a {
        padding-bottom: 45vw;
    }

    .case-list ul li.view em {
        font-size: 1.2875em;
    }

    article.news {
        padding: 5em 0;
    }

    .brand-box {
        width: 100%;
    }

    .contact-box .contact-text h2.title {
        font-size: 1.2875em;
    }

    .brand-box .brand-list li {
        width: 48%;
        margin-right: .875em;
    }

    .brand-box .brand-list li:nth-child(4n+4) {
        margin-right: .875em;
    }

    .brand-box .brand-list li:nth-child(2n+2) {
        margin-right: 0;
    }

    .brand-box .brand-list li:nth-child(n+5) {
        margin-bottom: 3%;
    }

    footer {
        padding: 5em 0;
    }

    .foot {
        flex-wrap: wrap;
    }

    .foot-left {
        width: 100%;
        margin-bottom: 2.0875em;
    }

    .foot-left .foot-logo {
        margin-bottom: 1.8875em;
    }

    .foot-right {
        width: 100%;
    }

    .foot-nav ul {
        justify-content: space-around;
        flex-wrap: wrap;
    }

    .foot-nav ul li {
        margin: 0 .875em .875em;
    }

    .foot-nav ul li a {
        font-size: 1.0875em;
    }

    .foot-medium {
        flex-wrap: wrap;
    }

    .foot-medium .foot-tel {
        font-size: 2.4875em;
    }

    .foot-medium .foot-soc {
        justify-content: space-between;
        width: 100%;
    }

    .foot-medium .foot-soc a {
        margin: 0;
    }

    footer .foot-nav {
        display: none
    }

    .foot-left .foot-logo {}

    .foot-left .foot-logo img {
        width: 45%;
    }

    .foot-left .foot-logo span {
        width: 30%;
        padding-top: 0;
    }


}

@media only screen and (max-width:641px) {
    .foot-left .foot-logo img {
        width: 30%;
        left: 18%;
        top: 25px;
    }

    .foot-left .foot-logo span {
        width: 50%;
    }

}

@media only screen and (max-width: 429px) {
    .logo img {
        width: 25%;
    }

    .logo .biaoti {
        font-size: 1.2em;
        width: auto;
    }

    .project-list li {
        flex: none;
    }

    .project-list .imgs {
        width: 30%;
    }

    .project-list .text {
        flex: 1 1 0%;
    }

    .foot-left .foot-logo img {
        left: 10%;
    }

    .foot-left .foot-logo span {
        width: 60%;
    }

}

@media only screen and (max-width: 429px) {
    .foot-left .foot-logo img {
        left: 0;
    }

    .foot-left .foot-logo span {
        width: 70%;
    }

}