/*************初始化样式*************/
@font-face {
    font-family: "DinBold";
    src: "../font/din-bold-2.ttf" format("truetype");
    /* font-weight: n */
}

body {
    margin: 0;
    padding: 0;
}

img {
    border: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0;
    padding: 0;
    font-weight: bold;
}

ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

a {
    text-decoration: none;
    color: black;
}

.index_title h2 {
    font-size: 48px;
    font-weight: normal
}

.index_title p {
    font-size: 24px
}

/*************页面头部标题缩略图-公共*************/
.channel-banner {
    height: 350px;
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
    margin: 0;
    padding: 0;
}

.text-title {
    position: relative;
    width: 1418px;
    height: 70%;
    margin: 0 auto;
    text-align: center;
    padding-top: 100px;
    line-height: 5em;
}

.text-white {
    font-weight: bold;
    color: white;
    font-size: 40px;
}

.Conv_DINCondensedC {
    font-size: 25px;
    /* font-weight: bold; */
    color: white;
}

.fql {
    width: 70px;
    margin: 0 auto;
    border-bottom: 5px solid #2fc16e;
}

/*************页面头部分类-公共*************/
.header_main {
    position: relative;
    width: 100%;
    height: 100px;
    background: #ffffff;
    min-width: 1418px;
    z-index: 22;
}

.nav_top {
    width: 100%;
    height: 40px;
    line-height: 40px;
    border: 1px solid #ebeaea;
}

.nav_top_center {
    width: 1418px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
}

.ntc_left {
    font-size: 13px;
    float: left\9;
}

.ntc_right {
    display: flex;
    float: right\9;
}

.ntc_right li {
    margin-right: 13px;
    float: left\9;
}

.ntc_right li a {
    font-size: 13px;
}

.ntc_right li a:hover {
    color: #2fc16e;
}

.header_logo {
    height: 100px;
    background-color: #ffffff;
}

.banner {
    width: 1418px;
    margin: 0 auto;
    display: flex;
    padding: 10px 0 10px 0;
    justify-content: space-between;
}

.logo {
    width: 164px;
    height: 100px;
    display: block;
    text-align: center;
    color: #9b9b9b;
    float: left\9;
}

/*************分类路径-公共*************/
.path {
    width: 1418px;
    margin: 0 auto;
    height: 60px;
    line-height: 60px;
}

/*************单页样式-声学解决方案*************/
.single {
    width: 100%;
    height: auto;
    background-color: #F7F7F7;
    padding: 0 0 20px 0;
}

.single_top {
    width: 1418px;
    margin: 0 auto;
}

.single_img img {
    width: 100%;
    border: none;
}

.single_content {
    width: 1358px;
    padding: 30px;
    line-height: 2em;
    background-color: white;
}

.single_content h1 {
    text-align: center;
    font-weight: normal;
    margin-bottom: 15px;
}

.single_content img {
    width: 50%;
}

.fql2 {
    width: 50px;
    background-color: #2fc16e;
    height: 3px;
    margin: 0 auto;
}


/*************声学解决方案-列表*************/
#sx {
    width: 100%;
    height: auto;
    padding-bottom: 40px;
}

.sx-layout {
    width: 1418px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    padding: 20px;
    background-color: white;
}

.sx-left {
    width: 23%;
    height: auto;
}

.sx-left h2 {
    width: 100%;
    height: 65px;
    line-height: 65px;
    text-align: center;
    background-color: #f29803;
    color: white;
}

.sx-left ul li {
    width: 100%;
    height: 65px;
    line-height: 65px;
    border-bottom: 1px dashed #c0ccda;
    text-align: center;
}

.sx-left ul li:nth-last-child(1) {
    border-bottom: none;
}

.sx-left ul li a {
    font-size: 20px;
}

.sx-left ul li:hover {
    background-color: #e3e3e3;
    cursor: pointer;
    color: white;
}

.sx-right {
    width: 76%;
    height: auto;
}

.sx-right ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.sx-right ul li {
    width: 49%;
    text-align: center;
    margin-right: 5px;
    padding-bottom: 20px;
}

.sx-right ul li a img {
    width: 100%;
}

.sx-right ul li p {
    height: 20px;
    line-height: 20px;
}

.sx-right ul li p:hover {
    color: #f29803;
    cursor: pointer;
}

/*************首页轮播图*************/
.mySlides {
    display: none
}

/* 幻灯片容器 */
.slideshow-container {
    width: 100%\9;
    /*margin: 0 auto\9;*/
    position: relative;
    margin: 0 auto;
}

/* 下一张 & 上一张 按钮 */
.btn-prev,
.btn-next {
    cursor: pointer;
    position: absolute;
    top: 50%;
    width: auto;
    margin-top: -22px;
    padding: 16px;
    color: white;
    font-weight: bold;
    font-size: 18px;
    transition: 0.6s ease;
    border-radius: 0 3px 3px 0;
}

.btn-next {
    /* 定位 "下一张" 按钮靠右 */
    right: 0;
    border-radius: 3px 0 0 3px;
}

/* On hover, add a black background color with a little bit see-through */
.btn-prev:hover,
.btn-next:hover {
    background-color: rgba(0, 0, 0, 0.8);
}

.swiperBtn {
    /* 标记符号 */
    width: 100%;
    text-align: center;
    margin: 0 auto;
    position: absolute;
    bottom: 20px;
}

.dot {
    cursor: pointer;
    height: 20px;
    width: 20px;
    margin: 0 10px;
    background-color: white;
    border-radius: 50%;
    display: inline-block;
    transition: background-color 0.6s ease;
}

.dot:hover {
    background-color: white;
}

.fade {
    /* 淡出动画 */
    -webkit-animation-name: fade;
    -webkit-animation-duration: 1.5s;
    animation-name: fade;
    animation-duration: 1.5s;
}

@-webkit-keyframes fade {
    from {
        opacity: .4
    }

    to {
        opacity: 1
    }
}

@keyframes fade {
    from {
        opacity: .4
    }

    to {
        opacity: 1
    }
}

/*************关于我们*************/
.index_about {
    width: 1418px;
    margin: 0 auto;
    padding: 0px 0 30px 0;
}

.index_about .strength {
    color: #666666;
    font-size: 24px;
    text-align: center;
    margin-top: 35px;
}

.index_about ul {
    margin-top: -20px;
    display: flex;
    justify-content: space-between;
    display: block\9;
    height: 130px\9;
}

.index_about ul li {
    float: left\9;
    width: 280px\9;
    text-align: center\9;
}

.index_about .num {
    color: #f29803;
    font-size: 56px;
    font-weight: normal;
}

.index_about .num span {
    font-size: 40px;
    vertical-align: super;
    margin-left: 45px;
}

.index_about .num b {
    transform: scale(1.5, 1.2);
    letter-spacing: -5px;
    display: inline-block;
    font-size: 60px;
    font-weight: normal;
}

.index_about ul p {
    font-size: 30px;
    color: #333333;
    margin: 15px 20px 0 0;
}

/*************案例*************/
.case {
    width: 100%;
    margin: 0 auto;
}

.index_case {
    background: #000;
    color: #fff;
    padding: 60px 0;
    height: 2120px\9;
}

.index_case .description {
    font-size: 24px;
    color: #cccccc;
    text-align: center;
    max-width: 1418px;
    margin: 0 auto;
    line-height: 36px;
    padding: 15px 0 60px 0;
}

.index_case .list {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    min-width: 1418px;
}

.index_case li {
    width: 32.8%;
    position: relative;
    margin-bottom: 8px;
    overflow: hidden;
    float: left;
    margin-right: 10px;
}

.index_case li:hover .text {
    top: 0;
    opacity: 1
}

.index_case img {
    width: 100%;
    display: block;
}

.index_case .text {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 70px 30px 0 30px;
    box-sizing: border-box;
    background: rgba(0, 0, 0, 0.7);
    transition: all 0.5s;
    opacity: 0
}

.index_case .text h2 {
    font-weight: normal;
    line-height: 80px;
    font-size: 32px;
}

.index_case .text h2 span {
    display: block;
    width: 200px;
    height: 2px;
    background: #fff;
}

.index_case .text p {
    font-size: 16px;
    line-height: 30px;
    padding-top: 35px;
}

.index_case .text a {
    background: #f29803;
    width: 128px;
    height: 39px;
    line-height: 39px;
    text-align: center;
    font-size: 24px;
    color: #fff;
    display: block;
    margin: 38px 0 0 10px;
}

/*************视频*************/
.video-bj {
    width: 780px;
    height: 659px;
    margin: 0 auto;
    background-image: url("../images/2023110.png");
    background-size: 100% 100%;
    position: relative;
}

.video-bj video {
    position: absolute;
    top: 91px;
    left: 110px;
    margin: 0 auto;
}

/*************声学产品*************/
.Acoustic_products1 {
    background: #000;
    color: #fff;
    padding: 60px 0
}

.Acoustic_products1 .index_title {
    margin-bottom: 60px;
}

.produce {
    width: 1418px;
    margin: 0 auto;
    margin-bottom: 38px;
    overflow: hidden;
    display: flex;
}

.produce_left {
    width: 35%;
    height: 730px;
    position: relative;
    float: left\9;
    width: 489px\9;
    height: 732px\9;
}

.produce_left img {
    display: block;
    width: 100%;
    height: 100%;
    /* border: 1px solid white; */
}

.produce_text {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    text-align: center;
}

.produce_text h3 {
    font-size: 36px;
    font-weight: normal;
    height: 30px;
    line-height: 30px;
    margin-top: 60%;
}

.produce_text .line {
    background: #fff;
    width: 40px;
    height: 3px;
    display: block;
    margin: 0 auto;
    margin-top: 10px;
    margin-bottom: 10px;
}

.produce_text span {
    font-size: 13px;
}

.produce_text a {
    display: block;
    width: 26px;
    height: 26px;
    margin: 0 auto;
    margin-top: 10px;
    background: url(../images/more.png) no-repeat
}

.produce_list {
    padding: 0 10px 0 10px;
    width: 65%;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    float: right\9;
    width: 900px\9;
}

.produce_list li {
    width: 30%;
    height: 45%;
    text-align: center;
    position: relative;
    float: left\9;
    display: block\9;
    width: 250px\9;
    height: 320px\9;
    margin-right: 10px\9;
    margin-bottom: 60px\9;
}

.produce_list li a img {
    width: 100%;
    height: 100%;
    height: 100%\9;
    border: none;
}

.produce_list li a h3 {
    display: block;
    background-color: white;
    height: 10%;
    line-height: 2em;
    position: absolute;
    top: 100%;
    width: 100%;
}

.produce_list li a h3:hover {
    background-color: #f29803;
    color: #fff;
}

/*************优势*************/
.advantage1 {
    background: #e5e5e5;
    padding: 60px 0 20px 0;
}

.advantage1 ul {
    width: 1418px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-top: 60px;
    height: 680px\9;
}

.advantage1 li {
    width: 686px;
    height: 202px;
    box-sizing: border-box;
    border: 1px solid #000000;
    margin-bottom: 40px;
    float: left\9;
    width: 650px\9;
    margin-right: 20px\9;
}

.advantage1 li .num {
    float: left;
    width: 200px;
    text-align: center;
    font-size: 155px;
    color: #ea9610;
    line-height: 200px;
    font-family: "DinBold";
    transform: scale(0.5, 1);
}

.advantage1 li .text {
    overflow: hidden;
    padding: 35px 25px 0 0;
}

.advantage1 li h4 {
    font-weight: normal;
    font-size: 40px;
    color: #333;
    margin-bottom: 10px;
}

.advantage1 li p {
    font-size: 16px;
    color: #666666
}

/*************合作伙伴*************/
.partner {
    padding: 80px 0 80px 0;
    background: #000000;
    color: #fff
}

.Brand {
    width: 1418px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-top: 30px;
    height: auto;
}

.Brand img {
    width: 15%;
    height: 15%;
    margin: 10px 0 10px 0;
}

/*************荣誉*************/
.honor {
    width: 100%;
    height: auto;
    background: #eeeeee;
    padding: 60px 0 40px 0;
}

.honor_list {
    width: 1418px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-top: 40px;
}

.honor_list img {
    width: 22%;
    height: 22%;
    margin-bottom: 30px;
    border: 3px solid #ffffff;
}

.honor_list img:hover {
    width: 22%;
    height: 22%;
    cursor: pointer;
    border: 3px solid #f29803;
}

/*************新闻资讯*************/
.index_news {
    background: #000;
    color: #fff;
    padding: 60px 0 60px 0;
}

.index_news .list {
    width: 1418px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    display: block\9;
    height: 320px\9;
}

.index_news li {
    width: 680px;
    border-bottom: 1px solid #ffffff;
    display: flex;
    align-items: center;
    height: 80px;
    line-height: 80px;
    justify-content: space-between;
    float: left\9;
    margin-right: 20px\9;
}

.index_news li span {
    float: left\9;
    margin-right: 20px\9;
}

.index_news li h3 {
    width: 450px;
    font-size: 20px;
    font-weight: normal;
    float: left\9;
    font-size: 20px\9;
    width: 450px\9;
}

.index_news li a {
    color: #fff;
    font-size: 16px;
    float: right\9;
}

.index_news li a:hover {
    color: #f29803;
}

.index_news li span {
    font-family: "Arial"
}

/*************尾部*************/
footer {
    width: 100%;
    padding: 40px 0 20px 0;
    background-color: #3a3a3a;
    color: #FFFFFF;
    bottom: -100px;
    left: 0;
}

.am-cf {
    width: 1418px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    padding-bottom: 40px;
    border-bottom: 1px solid #656565;
}

.foot_links {
    float: left;
    margin-right: 45px;
    /* border-right: 1px solid #656565; */
    padding-right: 30px;
}

.foot_links h4 {
    margin-bottom: 25px;
}

.foot_links h4 a {
    font-size: 18px;
    color: #ebeaea;
}

.foot_links ul {
    margin: 0;
    padding: 0;
    border: none;
    list-style: none;
    text-decoration: none;
    font-family: "Segoe UI", "Lucida Grande", Helvetica, Arial, "Microsoft YaHei", FreeSans, Arimo, "Droid Sans", "wenquanyi micro hei", "Hiragino Sans GB", "Hiragino Sans GB W3", "FontAwesome", sans-serif;
    outline: none;
    font-size: 14px;
}

.foot_links ul li {
    margin-bottom: 15px;
}

.foot_links ul li a {
    font-size: 14px;
    color: #aaaaaa;
}

.foot_links ul li a:hover {
    color: #2fc16e;
}

.links_end {
    border: none;
    margin-right: 0;
}

.links_end h4 {
    font-size: 18px;
}

.links_end ul li i {
    font-size: 26px;
    font-style: normal;
    color: #2fc16e
}

.links_end ul li span {
    color: #aaaaaa;
}

.f_weixin {
    width: 154px;
    height: 43px;
    background-color: #13181f;
    border-radius: 6px;
    line-height: 43px;
    background-image: url(../images/weixin1.png);
    background-position-y: center;
    background-position-x: 18px;
    background-repeat: no-repeat;
    margin-bottom: 10px;
}

.f_weixin a {
    color: #676c74;
    padding-left: 55px;
}

.f_weixin a:hover {
    color: white;
}

.f_weixin:hover {
    background-image: url(../images/wxh.png);
}

.f_weibo {
    width: 154px;
    height: 43px;
    background-color: #13181f;
    border-radius: 6px;
    line-height: 43px;
    background-image: url(../images/sina1.png);
    background-position-y: center;
    background-position-x: 18px;
    background-repeat: no-repeat;
    margin-bottom: 10px;
}

.f_weibo:hover {
    background-image: url(../images/sinah.png);
}

.f_weibo a {
    color: #676c74;
    padding-left: 55px;
    display: block;
}

.f_weibo a:hover {
    color: white;
}

.copyright {
    width: 1418px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    padding: 20px 0 20px 0;
}

.copyright span:nth-child(1) {
    color: #aaaaaa;
}

.links {
    width: 1418px;
    margin: 0 auto;
    overflow: hidden;
    padding: 0 0 20px 0;
    height: 30px;
    line-height: 30px;
}

.links h3 {
    display: block;
    float: left;
    margin-right: 10px;
}

.links a {
    color: #aaaaaa;
}

/* 联系我们 */
.lx_contact {
    width: 1418px;
    position: relative;
    padding: 20px 0 20px 0;
    margin: 0 auto;
}

.lx_content {
    width: 1378px;
    overflow: hidden;
    padding: 20px 20px 60px 20px;
    background-color: #f5f5f5;
    border-radius: 10px;
}

.lx_content h3 {
    font-weight: bold;
    color: #860707;
}

.lx_introduce {
    line-height: 1.8em;
}

.lx_leaveword {
    width: 1040px;
    margin: 0 auto;
    padding-top: 50px;
}

.msg-title {
    font-size: 22px;
    text-align: center;
    margin-bottom: 25px;
}

.lx_info p {
    font-size: 14px;
}

.lx_map {
    width: 700px;
    height: 450px;
    border: 1px solid #aaaaaa;
}

.cf-column {
    padding-bottom: 20px;
    position: relative;
    width: 500px;
    float: left;
    margin-right: 20px;
}

.cf-column span {
    display: block;
    position: absolute;
    top: 10px;
    color: red;
    left: -10px;
    font-weight: bold;
}

.cf-column input {
    box-sizing: border-box;
    padding: 0 15px;
    border: 1px solid #ddd;
    height: 40px;
    line-height: 40px;
    color: #444;
    width: 100%;
}

.cf-row {
    padding-bottom: 20px;
    width: 98%;
}

.cf-row textarea {
    box-sizing: border-box;
    border: 1px solid #ddd;
    min-height: 100px;
    padding: 15px;
    color: #444;
    width: 100%;
}

.cf-btn {
    padding-bottom: 20px;
    width: 98%;
}

.submit-button {
    box-sizing: border-box;
    width: 100%;
    line-height: 40px;
    height: 40px;
    float: right;
    padding: 0px 15px;
    border: 0px;
    color: #fff;
    position: relative;
    background-color: #333;
    cursor: pointer;
}

.submit-button:hover {
    color: white;
    background-color: red;
}

/* 导航栏 */
.navbar {
  overflow: hidden;
  margin-top: 25px;
  float: right\9;
}

.navbar a {
  float: left;
  font-size: 16px;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
}

.dropdown {
  float: left;
  overflow: hidden;
}

.dropdown .dropbtn {
  font-size: 16px;  
  border: none;
  outline: none;
  padding: 14px 16px;
  background-color: inherit;
  font-family: inherit;
  margin: 0;
}

.navbar a:hover, .dropdown:hover .dropbtn {
  background-color: #2fc16e;
}

.dropdown-content {
  display: none;
  position: absolute;
  background-color: #f9f9f9;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;
  margin-top: 50px;
}

.dropdown-content a {
  float: none;
  color: black;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
  text-align: left;
}

.dropdown-content a:hover {
  background-color: #ddd;
}

.dropdown:hover .dropdown-content {
  display: block;
}

.nav_active {
  background-color: #2fc16e;
}

/*************页面头部分类-公共*************/
.nav-x{
    background: #fff;
    width: 100%;
    position: relative;
}
.menu-toggle{
    width: 1418px;
    height: 60px;
    margin: 0 auto;
}
.nav-navicon{
    display: flex;
}
.nav-x li {
    flex: 0 0 auto;
    display: inline-block;
    width: 10%;

}
.nav-x li a {
    font-size: 16px;
    padding: 0;
    height: 70px;
    line-height: 70px;
    color: #6e6e6e;
    text-align: center;
    display: block;
}
.nav-x li a.active {
    background: linear-gradient(
            -45deg,#FFD100,#ff9600);
    color: #fff;
}