html, body{
    font-family: 'Montserrat', sans-serif;
    font-size: 100%;
    background: #FFf;
    -webkit-font-smoothing: antialiased;
}
div{
    text-align:center; margin-right:auto;margin-left:auto;
}
p h h1 h2 h3 h4 {
    text-rendering: geometricPrecision;
    -moz-osx-font-smoothing: grayscale; /* 针对Firefox */
    -webkit-font-smoothing: antialiased; /* 针对Chrome, Safari和Opera */
    -moz-font-smoothing: antialiased; /* 针对旧版Firefox */
}
body a{
    transition:0.5s all;
    -webkit-transition:0.5s all;
    -moz-transition:0.5s all;
    -o-transition:0.5s all;
    -ms-transition:0.5s all;
}
/*----start-container----*/
.container{
    width:70%;
}
.bg{

    /*background: url("../img/mainBg.jpg") no-repeat  center top;*/
    /* background: url("../img/bg.jpg") no-repeat  center top; */
    /* background: url("../img/bg2.png") no-repeat  right center;
    background-size:cover;
    margin: 0px  0px 100px 0px; */
    /* background-color: #1A232E; */
    background : -moz-linear-gradient(27.88% -36.25% -60deg,rgba(78, 201, 233, 1) 0%,rgba(69, 137, 244, 1) 60.27%,rgba(59, 68, 255, 1) 100%);
    background : -webkit-linear-gradient(-60deg, rgba(78, 201, 233, 1) 0%, rgba(69, 137, 244, 1) 60.27%, rgba(59, 68, 255, 1) 100%);
    background : -webkit-gradient(linear,27.88% -36.25% ,72.12% 136.25% ,color-stop(0,rgba(78, 201, 233, 1) ),color-stop(0.6027,rgba(69, 137, 244, 1) ),color-stop(1,rgba(59, 68, 255, 1) ));
    background : -o-linear-gradient(-60deg, rgba(78, 201, 233, 1) 0%, rgba(69, 137, 244, 1) 60.27%, rgba(59, 68, 255, 1) 100%);
    background : -ms-linear-gradient(-60deg, rgba(78, 201, 233, 1) 0%, rgba(69, 137, 244, 1) 60.27%, rgba(59, 68, 255, 1) 100%);
    -ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr='#4EC9E9', endColorstr='#3B44FF' ,GradientType=0)";
    background : linear-gradient(150deg, rgba(78, 201, 233, 1) 0%, rgba(69, 137, 244, 1) 60.27%, rgba(59, 68, 255, 1) 100%);
    position : absolute ;
    left : 0px;
    top : 60px;
    width : 1440px;
    height : 639px;
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#4EC9E9',endColorstr='#3B44FF' , GradientType=1);
   
    /* width: 1440px; */
    width: 100%;
    height: 620px;
    display: flex;justify-content: center;align-items: center;
    margin-top: 10px;
}
.bg-content{
    margin-left: 150px;
    
}
.bg2{
    width: 600px;
    height: 500px;
    background: url("../img/bg.png") no-repeat  right center;
    background-size:contain;
    margin: 0px 50px 0 0;
    /* margin: 0px  0px 100px 0px; */
    
    /* background: url("../img/bg2.png") no-repeat  CENTER top;
    background-size:50% 80%;
    margin: 0px  0px 100px 0px;
    background-color: #1A232E;
    width: 1440px;
    height: 770px; */
}
.logo-outter {
    margin-left: 25px;
}
.logo{
    
    width:40px;
    height: 40px;
    background: url("../img/logo.png") no-repeat  right center;
    background-size:contain;
    opacity: 1;
}
#nav-1{
    /* padding:5px 0 5px 0 ; */
    /* background-color:#939393; */
    background-color:#fff;
    /* background-color:rgba(26,35,46,0.85); */
    opacity: 1;
    height: 80px;
    border:none;
    /* border:0 0 1px 0 solid black; */
   
    
}
.navbar-nav{
    margin-right:70px !important;
}
.nav-ul{
    margin-left: 150px;
    
    float: right;
}
nav li {
    margin-left: 50px;
    font-size:  20px;
    font-family: "Microsoft YaHei", sans-serif;
    font-weight:regular;
    
   
}
.navbar-nav>li>a{
    /* color:#fff !important; */

  font-family : 微软雅黑;
  font-size : 20px;
  line-height : 22px;
  letter-spacing : 2px;
  /* color : #191919; */
  color : #191919 !important;
  /* color : rgb(26, 35, 46); */
  font-weight: 800;
}
.navbar-nav>li>a:hover{
    color : #9d9d9d !important ;
  /* color : #1A232E !important; */
  /* color : rgb(26, 35, 46); */
  font-weight: 800;
}
 
.nav-ico{
    float: left;
    margin: 1px;
}

.nav-ico  a :hover{
    display:inline-block; width:37px;height:37px; padding:1px;
    border-radius: 5px;
    border:1px solid #080808;
    background-color:rgb(255,255,255);
    background-color: rgba(0,0,0,0.2);
    filter:alpha(Opacity=60);-moz-opacity:0.6;opacity: 0.6;
    text-decoration:none;

}

.navbar-fixed-top {
    position: absolute !important;
    top: 0px;
    
}
/*Styles for screen 600px and lower*/
@media screen and (max-width: 768px) {
    nav {
        height: auto;
        float:none;
    }
    nav ul {
        width: 100%;
        display: block;
        height: auto;
    }
    nav li {
        width: 100%;
        position: relative;
    }
    nav li a {
        border-bottom: 1px solid #eee;
    }

}
/*Styles for screen 515px and lower*/
@media only screen and (max-width : 768px) {
    nav {
        border-bottom: 0;
        float:none;
    }
    nav ul {
        display: none;
        height: auto;
        margin: 1.5em 0 0 0;
        background: #fff;
    }
    .top-nav ul li a {
        color: #2C3E50;
        padding: 0.4em 0;
    }
}
/*Smartphone*/
@media only screen and (max-width : 320px) {
    nav {
        float:none;
    }
    nav li {
        display: block;
        float: none;
        width: 100%;
    }
    nav li a {
        border-bottom: 1px solid #EEE;
    }
}
/*---- benner ----*/
.banner-info{
    padding: 9em 0 12em;
    
}
.banner-info h1{
    /* font-weight: 700; */
    font-size: 100px;
    /*color: #FFF;*/
    color: #fff;
    text-transform: uppercase;
    width: 100%;
    display: inline-block;
    line-height: 1.3em;
    font-family: "Microsoft YaHei", sans-serif;
    font-weight:bold;
    letter-spacing: 2.7pt;
}
.banner-info span{
    margin-top: 52px;
    /* width:15%;
    height:5px; */
    width:150pt;
    height: 10pt;
    background:#fff;
    display:inline-block;
}
.banner-info p{
    /*color: #FFFFFF;*/
    color: #fff;
    /* font-weight:700; */
    font-size:36px;
    line-height: 1.7em;
    /* font-family: 'Open Sans', sans-serif; */
    /* margin: 1em auto; */
    width: 100%;
    margin-top: 38px;
    font-family: "Microsoft YaHei", sans-serif;
    font-weight:regular;
    white-space: normal;
    letter-spacing: 2.7pt;

}
/*---- services ----*/
.services{
    position:relative;
    padding:8em 0;
    margin: 0px  0px 50px 0px;
    background:#f9f9f9;
}
.service-head h2{
    font-weight:900;
    font-size:2.6em;
    color:#222222;
    text-transform:uppercase;
}
.service-head span{
    width:15%;
    height:1px;
    background:#35C2F8;
    display:inline-block;
}
.service-grid{
    display:flex;
}
.service-grid span{
    cursor: pointer;
    transition: all 0.6s;
    width:64px;
    height:64px;
    display:inline-block;
    background:url(../img/services-icons.png) no-repeat 0px 0px;
}
.service-grid h3 a{
    color: #222;
    font-weight: 600;
    font-size: 0.875em;
    text-transform: uppercase;
}
.service-grid h3 a:hover{
    color:#777777;
    text-decoration:none;
}
.service-grid p{
    font-weight:400;
    font-family: 'Open Sans', sans-serif;
    line-height:1.7em;
    color:#888888;
}
.service-grid span.service-icon1{
    background-position:0px 0px;
}
.service-grid span.service-icon2{
    background-position: -391px 2px;
}
.service-grid span.service-icon3{
    background-position: -779px 4px;
}
.services-grids {
    padding: 3em 0;
    margin: 70px  0px 0px 0px;;
}
.service-grid:hover  > span {
    /*border: 2px solid #009ee3;*/
    filter:alpha(opacity=50);
    -moz-opacity:0.5;
    -khtml-opacity: 0.5;
    transform: scale(1.4);
    opacity: 0.5;
    margin-bottom: 20px;
    color: #ffff00;
}

.expertise-height{
     margin-top: 800px;
 }

.about-us{
    padding:3em 3em 3em 5em;
}
.about-main{
    /*background: url(../img/about.jpg) no-repeat 5px 5px;*/
    background-size: cover;
}
.about-header{
    width:50%;
    /* float: left; */
 
}
.about-header h3{
    
    font-size: 36px;
     
    padding-left: 20px;
    color: #4c4c4c;
    text-transform: uppercase;
    margin: 1.3em 0 0.6em;
    font-family: "Microsoft YaHei", sans-serif;
    font-weight:bold;
}
.about-header p{
     
     
    line-height:1.7em;
    float:left;
    text-align: justify;
    /* text-indent:2em; */
    color:#4c4c4c;
    font-size: 14px;
    font-family: "Microsoft YaHei", sans-serif;
    font-weight:regular;
    margin:0px 0px 0px 10px;
}

.about-detail{
    /* padding:5em 0; */
    margin-top: 200px;
}
.about-detail2{
    /* padding:5em 0; */
    margin-top: 172px;
}
.a-detail-inner{
    width: 55%;
    float: left;
    margin-top: 1em;
    margin-bottom: 1em;
}
.a-detail-inner-left{
    /* float:left;
    width:10%; */
}

.a-detail-inner-left span{
    width:40px;
    height:40px;
    display:inline-block;
    /* background:url(../img/exprt-icons.png) no-repeat 0px 0px; */
    /* background:url(../img/setting.png) no-repeat  ;
    background-size: contain; */
    margin-top:0.4em;

}
.about-span-icon{
    background:url(../img/setting.png) no-repeat  ;
    background-size: contain;
}
.about2-span-icon{
    background:url(../img/develop.png) no-repeat  ;
    background-size: contain;
}
.about3-span-icon{
    background:url(../img/flash.png) no-repeat  ;
    background-size: contain;
}
.about4-span-icon{
    background:url(../img/safe.png) no-repeat  ;
    background-size: contain;
}

.about5-span-icon{
    background:url(../img/maintain.png) no-repeat  ;
    background-size: contain;
}
.about6-span-icon{
    background:url(../img/highfunction.png) no-repeat  ;
    background-size: contain;
}
.about7-span-icon{
    background:url(../img/24h.png) no-repeat  ;
    background-size: contain;
}
.about8-span-icon{
    background:url(../img/docking.png) no-repeat  ;
    background-size: contain;
}
.a-detail-inner-right{
    float:right;
    width:85%;

}
.a-detail-inner-right h4{
    font-size:1.2em;
    color:#222222;
    text-transform:uppercase;
    font-weight:600;
    text-align: justify;
    float:left;
}
.a-detail-inner-right p{
    font-weight: 400;
    font-family: 'Open Sans', sans-serif;
    line-height: 1.9em;
    color: #777777;
    text-align: justify;
    float:left;
}
.a-detail-inner-left span.e-icon1{
    background-position:0px 0px;
}
.a-detail-inner-left span.e-icon2{
    background-position: -5px -105px;
}
.a-detail-inner-left span.e-icon3{
    background-position: 0px -51px;
}
.a-detail-inner-left span.e-icon4{
    background-position: 2px -159px;
}


.about-container{
    margin: 0 70px  0 70px;
    text-align: center;
}
.about-outter{
    width:100%;
    /* height: 500px; */
    display:flex;
    margin-top: 20px;
}
 
.about-inner  {
    width:310px;
    height:250px;
    /* background-color: #1A232E; */
    background : -moz-linear-gradient(50% 0% -90deg,rgba(78, 201, 233, 1) 0%,rgba(74, 173, 238, 1) 47.84%,rgba(69, 137, 244, 1) 100%);
    background : -webkit-linear-gradient(-90deg, rgba(78, 201, 233, 1) 0%, rgba(74, 173, 238, 1) 47.84%, rgba(69, 137, 244, 1) 100%);
    background : -webkit-gradient(linear,50% 0% ,50% 100% ,color-stop(0,rgba(78, 201, 233, 1) ),color-stop(0.4784,rgba(74, 173, 238, 1) ),color-stop(1,rgba(69, 137, 244, 1) ));
    background : -o-linear-gradient(-90deg, rgba(78, 201, 233, 1) 0%, rgba(74, 173, 238, 1) 47.84%, rgba(69, 137, 244, 1) 100%);
    background : -ms-linear-gradient(-90deg, rgba(78, 201, 233, 1) 0%, rgba(74, 173, 238, 1) 47.84%, rgba(69, 137, 244, 1) 100%);
    -ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr='#4EC9E9', endColorstr='#4589F4' ,GradientType=0)";
    background : linear-gradient(180deg, rgba(78, 201, 233, 1) 0%, rgba(74, 173, 238, 1) 47.84%, rgba(69, 137, 244, 1) 100%);
     /* flex: 1 1 auto; */
     /* margin-right: 20px; */
    border-radius: 12px;
}




.about-container2{
    margin: 0 120px  0 120px;
    text-align: center;
}
.about-inner2  {
    width:280px;
    height:250px;
    display: block;
    flex: 0 0 auto;
     /* flex: 1 1 auto; */
     /* margin-right: 20px; */
     
}
.about-inner2 p {
    font-size:10px;
    margin-top:14px ;
    text-align:left;
     
}
.about-outter2{
    width:100%;
    height: 500px;
    display:flex;
    margin-top: 20px;
}
.about-outter2 > :not(:last-child) {
    margin-right: 70px;
}
.about-inner-item2 {
    display:flex;
    text-align: left;
    /* justify-content:left; */
    align-items: center;
    margin-bottom: 48px;;
}
.a-detail-item2 {
    margin-left: 15px;
    padding: 0;
    /* justify-content:center; */
    text-align: left;
    margin-top: 15px;
}
.a-detail-item2 h4 {
    font-size:16px;
    font-family: 'Microsoft YaHei', sans-serif;
    text-align:left;
    font-weight:bold; 
    letter-spacing: 1pt;
 
}
.a-detail-item2 p {
    font-size:10px;
    margin-top:14px ;
    text-align:left;
    letter-spacing: 1pt;
}
.a-detail-icon-padding2 {
    margin-left: -5px;
    text-align: left;
    margin-top: 12px;
}





.about-outter > :not(:last-child) {
    margin-right: 20px;
}
.about-inner-item {
    color:#fff;display:block;
}

.a-detail-icon-padding {
    margin-left: 18px;
     text-align: left;
     margin-top: 12px;
}
.a-detail-item {
    margin-left: 24px;
    margin-right: 20px;
    justify-content:center;
    margin-top: 12px;
}
.a-detail-item h4 {
    font-size:16px;
    font-family: 'Microsoft YaHei', sans-serif;
    text-align:left;
    font-weight:bold; 
    letter-spacing: 1pt;
 
}
.a-detail-item p {
    font-size:10px;
    margin-top:14px ;
    text-align:left;
    letter-spacing: 1pt;
}
/*---- portflio ----*/
.portfolio-works{
    margin:75px 70px 50px 70px;
    
    
}
.product-header h3{
     
    font-size: 36px;
    padding-left: 20px;
    color: #4c4c4c;
    text-transform: uppercase;
    margin: 1.3em 0 0.6em;
    font-family: "Microsoft YaHei", sans-serif;
    font-weight:bold;
}
.portfolio-work-grid{
    float:left;
    padding-right: 1px;
    padding-left: 1px;
    padding-top:80px;
    margin-top: 0.5em;
}
.portfolio-work-grid{

    position:relative;
}
.portfolio-work-grid-pic img{
    width:80%;
}
.portfolio-work-grid-pic{
    position:relative;
}

/*---- contact ----*/
.contact{
    /* background: #1A232E; */
    background : -moz-linear-gradient(32.99% -91.42% -60deg,rgba(78, 201, 233, 1) 0%,rgba(69, 137, 244, 1) 60.27%,rgba(59, 68, 255, 1) 100%);
    background : -webkit-linear-gradient(-60deg, rgba(78, 201, 233, 1) 0%, rgba(69, 137, 244, 1) 60.27%, rgba(59, 68, 255, 1) 100%);
    background : -webkit-gradient(linear,32.99% -91.42% ,67.01% 191.42% ,color-stop(0,rgba(78, 201, 233, 1) ),color-stop(0.6027,rgba(69, 137, 244, 1) ),color-stop(1,rgba(59, 68, 255, 1) ));
    background : -o-linear-gradient(-60deg, rgba(78, 201, 233, 1) 0%, rgba(69, 137, 244, 1) 60.27%, rgba(59, 68, 255, 1) 100%);
    background : -ms-linear-gradient(-60deg, rgba(78, 201, 233, 1) 0%, rgba(69, 137, 244, 1) 60.27%, rgba(59, 68, 255, 1) 100%);
    -ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr='#4EC9E9', endColorstr='#3B44FF' ,GradientType=0)";
    background : linear-gradient(150deg, rgba(78, 201, 233, 1) 0%, rgba(69, 137, 244, 1) 60.27%, rgba(59, 68, 255, 1) 100%);
    padding: 5em 0 0;
    width: 100%;
}
.contact-left h3{
    color:#FFF;
    font-weight:900;
    font-size:2.8em;
    text-transform:uppercase;
    margin:0;
    padding:0 0 0.4em 0;
}
.contact-left label{
    font-weight: 400;
    font-family: 'Open Sans', sans-serif;
    line-height: 1.7em;
    color: #FFF;
    margin-bottom:1.8em;
    display:block;
}
.contact-left-grid p,.contact-left-grid p a{
    color: #FFF;
    font-weight: 300;
    font-size: 1.1em;
    font-family: 'Open Sans', sans-serif;
    margin: 0.8em 0;
}
.contact-left-grid p a{
    text-decoration:none;
}
.contact-left-grid p a:hover{
    color:#35C2F8;
}
.contact-left-grid p span{
    width: 28px;
    height: 32px;
    display: inline-block;
    background: url(../img/contact-icons1.png) no-repeat 0px 0px;
    vertical-align: middle;
    margin-right: 0.3em;
}
.contact-left-grids div.col-md-6{
    padding:0;
}
.contact-left-grid p span.c-mobi{
    background-position:0px 0px;
}
.contact-left-grid p span.c-twitter{
    background-position: 0px -66px;
}
.contact-left-grid p span.c-pluse{
    background-position: 0px -132px;
}
/*----*/
.contact-right-grid p,.contact-right-grid p a{
    color: #FFF;
    font-weight: 300;
    font-size: 1.1em;
    font-family: 'Open Sans', sans-serif;
    margin: 0.8em 0;
}
.contact-right-grid p a{
    text-decoration:none;
}
.contact-right-grid p a:hover{
    color:#35C2F8;
}
.contact-right-grid p span{
    width: 28px;
    height: 32px;
    display: inline-block;
    background: url(../img/contact-icons2.png) no-repeat 0px 0px;
    vertical-align: middle;
    margin-right: 0.3em;
}
.contact-right-grids div.col-md-6{
    padding:0;
}
.contact-right-grid p span.c-msg{
    background-position: 0px 6px;
}
.contact-right-grid p span.c-face{
    background-position: 0px -61px;
}
.contact-right-grid p span.c-pin{
    background-position: 0px -126px;
}
.contact-right input[type="text"],.contact-right textarea{
    width:100%;
    padding:0.8em;
    font-family: 'Open Sans', sans-serif;
    color:#777;
    font-weight:300;
    border-radius:0.3em;
    -webkit-border-radius:0.3em;
    -moz-border-radius:0.3em;
    -o-border-radius:0.3em;
    -ms-border-radius:0.3em;
    outline:none;
    border:1px solid #111111;
    transition:border-color 0.4s;
    -webkit-transition:border-color 0.4s;
    -moz-transition:border-color 0.4s;
    -o-transition:border-color 0.4s;
    -ms-transition:border-color 0.4s;
    margin:0 0 1em 0;
}
.contact-right input[type="text"]:hover,.contact-right textarea:hover{
    border-color:#35C2F8;
}
.contact-right textarea{
    outline:none;
    min-height:150px;
}
.contact-right input[type="button"]{
    background:#35C2F8;
    padding:0.9em 1.5em;
    color:#FFF;
    text-transform:uppercase;
    border-radius:3em;
    border:none;
    cursor:pointer;
    transition:0.5s all;
    -webkit-transition:0.5s all;
    -moz-transition:0.5s all;
    -o-transition:0.5s all;
    -ms-transition:0.5s all;
}
.contact-right input[type="button"]:hover{
    background:#EE2F1B;
}

.contact-grids{
    display: flex;
    justify-content: center;
    height: 150px;
    text-align: center;
    
}
.contact-item{
    margin-top: 70px;
    margin-left: 15%;
}
.contact-item2{
    margin-top: 70px;
    margin-left: -10%;
}

.contact-item3{
 margin-top: 70px;
 margin-left: 80px;
}

.contact-title-text p{
    color: #FFF;
    font-size: 28px;
    font-family: "Microsoft YaHei", sans-serif;
    font-weight:regular;
    letter-spacing: 1.3pt;
    text-rendering: geometricPrecision;
    -moz-osx-font-smoothing: grayscale; /* 针对Firefox */
    -webkit-font-smoothing: antialiased; /* 针对Chrome, Safari和Opera */
    -moz-font-smoothing: antialiased; /* 针对旧版Firefox */
   
}

.contact-phone-title p{
    color: #FFF;
    font-size: 16px;
    /* font-family: "Microsoft YaHei", sans-serif; */
    font-family: 微软雅黑;
    font-weight:bold;
    margin-bottom: 27px;
    letter-spacing: 1.2pt;
    text-rendering: geometricPrecision;
    -moz-osx-font-smoothing: grayscale; /* 针对Firefox */
    -webkit-font-smoothing: antialiased; /* 针对Chrome, Safari和Opera */
    -moz-font-smoothing: antialiased; /* 针对旧版Firefox */
}

.contact-phone-title label{
    color: #FFF;
    font-size: 12px;
    font-family: "Microsoft YaHei", sans-serif;
    font-weight:regular;
    margin-bottom: 13px;
    letter-spacing: 1.2pt;
    text-rendering: geometricPrecision;
    -moz-osx-font-smoothing: grayscale; /* 针对Firefox */
    -webkit-font-smoothing: antialiased; /* 针对Chrome, Safari和Opera */
    -moz-font-smoothing: antialiased; /* 针对旧版Firefox */
}
.contact-phone-title label span{
    color: #FFF;
    font-size: 12px;
    font-family:   Arial, Helvetica, sans-serif;
    font-weight:regular;
    letter-spacing: 1pt;
    text-rendering: geometricPrecision;
    -moz-osx-font-smoothing: grayscale; /* 针对Firefox */
    -webkit-font-smoothing: antialiased; /* 针对Chrome, Safari和Opera */
    -moz-font-smoothing: antialiased; /* 针对旧版Firefox */
}
/*---- copy-right -----*/

.copy-right hr{
    border:none;
    background:#fff;
    height:1px;
    margin:98px 0px 0px 0px;
}
.copy-right  {
    color:#fff;
    width:100%;
    font-size:12px;
    text-align:center;
    padding:20px 0px;
}
.copy-right a{
    text-transform:uppercase;
    color:#fff;
}
.copy-right a,.copy-right span{
    display:inline-block;
}
.copy-right .separator{
    margin:0px 3px;
}
.copy-right p{

    color:#FFF;
    font-size:1em;
    border-top:1px solid #FFF;
    padding:1.5em 0;
    font-weight:300;
    font-family: 'Open Sans', sans-serif;
    margin-top:5em;
}

.copy-right p a:hover{
    color:#FFF;
    text-decoration:none;
}
#toTop {
    display: none;
    text-decoration: none;
    position: fixed;
    bottom: 14px;
    right: 3%;
    overflow: hidden;
    width: 40px;
    height: 40px;
    border: none;
    text-indent: 100%;
    background: url("../img/to-top1.png") no-repeat 0px 0px;
}
#toTopHover {
    width: 40px;
    height: 40px;
    display: block;
    overflow: hidden;
    float: right;
    opacity: 0;
    -moz-opacity: 0;
    filter: alpha(opacity=0);
}
/*---- responsive-design ----*/
@media (max-width:1366px){
    .container{
        width:80%;
    }
}

@media (max-width:1300px){
    /* .preview-body{
        display: block;
        justify-content: left;
        align-items: center;
         

    } */
    .bg2{
        width: 400px;
        height: 300px;
   
    }
}

@media (max-width:1280px){
    .container{
        width:80%;
    }
    /* .logo-outter {
        margin-left: -30px;
    } */
}
@media (max-width:1150px){
    .about-inner  {
        
        height:300px;
       
    }
    .bg-content{
        margin-left: 100px;;
        transform: scale(0.8);
    }
    .bg2{
        width: 300px;
        height: 200px;
   
    }
}
@media (max-width:1024px){
    .container{
        width:80%;
    }
    .bg-content{
        margin-left: 100px;
        transform: scale(0.8);
    }
    .bg2{
        margin-left: -100px;
    }
/* 
    .banner-info h1 {
        font-size: 3.2em;
        width: 80%;
    }
    .banner-info p {
        width: 60%;
    } */
    .expertise{
        /* background: url(../img/about.jpg) no-repeat 680px 80px ; */

    }
    .a-detail-inner-right {
        width: 80%;
    }
    .portfolio-top-left-grid-right p {
        width: 100%;
    }
    .portfolio-work-grid-caption {
        padding: 2.4em 1em 0em 1em;
    }
}
@media (max-width:991px){
    .about-inner  {
        
        height:350px;
       
    }
    .bg-content{
        margin-left: -100px;
        transform: scale(0.8);
    }
    .bg2{
       display: none;
    }
}
@media (max-width:931px){
    .about-inner  {
        
        height:350px;
       
    }
    .bg-content{
        margin-left: 60px;
        transform: scale(0.8);
    }
    .bg2{
        margin-left: -150px;
    }
}
@media (max-width:768px){
    .container{
        width:80%;
    }

    /* .banner-info h1 {
        font-size: 2.8em;
        width: 100%;
    }
    .banner-info p {
        width: 90%;
    } */
    .a-detail-inner-right {
        width: 80%;
    }
    .portfolio-top-left-grid-right p {
        width: 100%;
    }
    .service-head h2 {
        font-size: 2.2em;
    }
    .services {
        padding: 1em 0;
    }
    .services-grids {
        padding: 1em 0;
    }
    .service-grid h3{
        margin:0 0 0.3em 0;
    }
    .expertise{

       background-image:none;
    }
    .service-grid{
        margin:0 0 1em 0;
    }
    .about-us {
        padding: 1.5em 4em 1.5em 4em;
    }

    .contact {
        padding: 3em 0 0;
    }
    .contact-left h3 {
        font-size: 2.5em;
    }
    .contact-left{
        margin:0 0 1em 0;
    }
}
@media (max-width:640px){
    .container{
        width:80%;
    }

    /* .banner-info {
        padding: 5em 0 7em;
    }
    .banner-info h1 {
        font-size: 2.3em;
        width: 100%;
    }
    .banner-info p {
        width: 100%;
        font-size: 1.2em;
    } */
    .a-detail-inner-right {
        width: 80%;
    }
    .portfolio-top-left-grid-right p {
        width: 100%;
    }

    .service-head h2 {
        font-size: 2.2em;
    }
    .services {
        padding: 1em 0;
    }
    .services-grids {
        padding: 1em 0;
    }
    .service-grid h3{
        margin:0 0 0.3em 0;
    }
    .service-grid{
        margin:0 0 1em 0;
    }

    .about-us {
        padding: 1.5em 3em 1.5em 3em;
    }
    .contact {
        padding: 3em 0 0;
    }
    .contact-left h3 {
        font-size: 2.5em;
    }
    .contact-left{
        margin:0 0 1em 0;
    }
}
@media (max-width:480px){
    .container{
        width:80%;
    }

    .service-head h2 {
        font-size: 2em;
    }
    .services {
        padding: 1em 0;
    }
    .services-grids {
        padding: 1em 0;
    }
    .service-grid h3{
        margin:0 0 0.3em 0;
    }
    .service-grid{
        margin:0 0 1em 0;
    }
    .a-detail-inner-right {
        width: 80%;
    }
    .portfolio-top-left-grid-right p {
        width: 100%;
    }
    .contact {
        padding: 3em 0 0;
    }
    .contact-left h3 {
        font-size: 2.2em;
    }
    .contact-left{
        margin:0 0 1em 0;
    }
    .service-grid h3 a {
        font-size: 0.8em;
    }
    .about-us {
        padding: 1.5em 3em 1.5em 3em;
    }

    .about-header h3 {
        font-size: 2em;
    }
    .a-detail-inner-left {
        width: 10%;
        float: left;

        margin-bottom: 0.5em;
    }
    .a-detail-inner-right{
        width: 90%;
        float: right;
        padding-left:20px;
        margin-bottom: 0.5em;
    }
    .a-detail-inner {
        padding: 1em 0;
        width:100%;
        float: left;

    }
    .portfolio-top-left h3 {
        font-size: 2em;
    }
    .portfolio-top-left h3 {
        font-size: 1.7em;
    }
    .copy-right p{
        padding:1.5em 0 1.2em;
        margin-top:3em;
    }
    .contact-right input[type="text"], .contact-right textarea,.contact-right input[type="submit"]{
        -webkit-appearance:none;
        resize:none;
    }
    .contact-right input[type="submit"] {
        padding: 0.7em 0em;
        width: 100%;
        outline:none;
    }
}
@media (max-width:320px) {
    .container {
        width: 90%;
    }

    .portfolio-work-grid-caption {
        padding: 0.5em 1em 0em 1em;
    }

    .banner-info {
        padding: 2em 0 3em;
    }

    .banner-info h1 {
        font-size: 1.2em;
        width: 100%;
    }

    .banner-info p {
        width: 100%;
        font-size: 0.875em;
    }

    .product-header h3{
        font-size: 1.5em;
        margin: 0.2em 0 0;
    }
    .portfolio-top-left-grid-right p {
        width: 100%;
    }

    .service-head h2 {
        font-size: 1.5em;
        margin: 0.2em 0 0;
    }

    .services {
        padding: 1em 0;
    }

    .services-grids {
        padding: 1em 0;
    }

    .service-grid h3 {
        margin: 0 0 0.3em 0;
    }

    .service-grid {
        margin: 0 0 1em 0;
    }

    .a-detail-inner {
        padding: 1.5em 2em 1.5em 2em;

    }

    .contact {
        padding: 1.8em 0 0;
    }

    .contact-left h3 {
        font-size: 1.5em;
    }

    .contact-left {
        margin: 0 0 1em 0;
    }

    .service-grid h3 a {
        font-size: 0.8em;
    }



    .about-detail {
        padding: 1em 0;
        width: 90%;
    }

    .about-us {
        padding: 1.5em 3em 1.5em 3em;
    }

    .about-header h3 {
        font-size: 2em;
    }

    .a-detail-inner-left {
        width: 10%;
        float: left;

        margin-bottom: 0.5em;
    }
    .a-detail-inner-right{
        width: 90%;
        float: right;
        padding-left:20px;

        margin-bottom: 0.5em;
    }
    .a-detail-inner {
        padding: 1em 0;
        width:110%;
        float: left;

    }

    .portfolio-top-left h3 {
        font-size: 2em;
    }

    .portfolio-top-left h3 {
        font-size: 1.5em;
    }

    .copy-right p {
        padding: 1.5em 0 1.2em;
        margin-top: 3em;
    }


    .portfolio-top-left-grid-right h5 {
        font-size: 1.1em;
    }

    .portfolio-top-left-grid-right {
        width: 82%;
    }

    .contact-right-grid p, .contact-right-grid p a {
        font-size: 1em;
    }

    .contact-left-grid p, .contact-left-grid p a {
        font-size: 1em;
    }

    .contact-left label {
        font-size: 0.875em;
    }

    .top-nav ul li a {
        padding: 0.2em 0;
    }

    .contact-right input[type="text"], .contact-right textarea, .contact-right input[type="submit"] {
        -webkit-appearance: none;
        resize: none;
    }

    .contact-right input[type="submit"] {
        padding: 0.7em 0em;
        width: 100%;
        outline: none;
    }
}


.box {
    text-align: left;
    width: 464px;
    height: 298px;
    background-color: #FFF;
    margin: 100px auto;
    box-shadow: 5px 5px 10px 0 rgba(0, 0, 0, 0.75);

}
.box1 {
    text-align: left;
    width:232px;
    height: 150px; 
    background-color: #FFF;
    margin: 100px auto;
    box-shadow: 5px 5px 10px 0 rgba(0, 0, 0, 0.75);

}
.box2 {
    text-align: left;
    width:232px;
    height: 150px; 
    background-color: #FFF;
    margin: 100px auto;
    box-shadow: 5px 5px 10px 0 rgba(0, 0, 0, 0.75);

}
.box3 {
    text-align: left;
    width:232px;
    height: 150px; 
    background-color: #FFF;
    margin: 100px auto;
    box-shadow: 5px 5px 10px 0 rgba(0, 0, 0, 0.75);
   
}
 .carousel-control .left span {
    margin-left: -20111px;
}
.carousel  .carousel-control .right {
    right: 210px;
    left: 200px
}
.glyphicon-chevron-left{
    right: -50%;
    left: -50%;
}
.carousel-control-prev,carousel-control-next{
    display: none;
}


.carousel img {
    width: 100%;
    height: 150px !important;
}
.carousel-caption {
    /* width:100%; */
    bottom: 0px;
    text-align: center;
    background: rgba(0, 0, 0, 0.55);
}


.box img {
    width: 100%;
    height: 298px !important;
}
.preview-body{
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    height: 500px;
}
 
.preview-box {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-left: 80px;
}
.preview-box  > :not(:last-child) {
    margin-right: 30px;
}
.preiview-item img{
    width:232px;
    height: 150px; 
    box-shadow: 5px 5px 10px 0 rgba(0, 0, 0, 0.75);

}

 
.carousel-control.left{
    left:-20px !important;
    background-image:none !important;
}
.carousel-control.right{
    right:-20px !important;
    background-image:none !important;
}


.carousel-control .glyphicon-chevron-left,  .carousel-control .icon-next, .carousel-control .icon-prev{
    left:-20px !important;
    opacity: 1 !important;
    filter: drop-shadow(4px 4px 4px rgba(0, 0, 0, 0.5));

}

 .carousel-control .glyphicon-chevron-right, .carousel-control .icon-next, .carousel-control .icon-prev{
    right:-20px !important;
    opacity: 1 !important;
    filter: drop-shadow(4px 4px 4px rgba(0, 0, 0, 0.5));

}



/* .carousel-inner .item {
    transition: transform 1500ms ease-in-out !important;
}
  */
@keyframes custom-animation {
    from {
      opacity: 0;
      transform: translateX(100px);
    }
    to {
      opacity: 1;
      transform: translateX(0);
    }
  }
  .carousel-inner .item {
    animation: custom-animation 1000ms ease-in-out !important;
  }







  .demo-wrap {
    width: 900px;
    min-height: 500px;
    margin-left: auto;
    margin-right: auto;
    margin-top: 100px;
    margin-bottom: 100;
    padding: 100px 50px;
    -webkit-perspective: 800px;
    -moz-perspective: 800px;
    perspective: 800px;
    position: relative;
    top: 0;
  }
  .demo-wrap .photos {
    width: 232px;
    height: 180px;
    /* margin-left: -164px; */
    -webkit-transition: -webkit-transform 1s;
    -moz-transition: -moz-transform 1s;
    transition: transform 1s;
    -webkit-transform-style: preserve-3d;
    -moz-transform-style: preserve-3d;
    transform-style: preserve-3d;
    position: absolute;
    left: 30%;
    right: 30%;
  }
  .demo-wrap .photos .photo {
    position: absolute;
    bottom: 0;
    width: 232px;
    height: 150px;
  }
  .demo-wrap .photos .photo img {
    width: 100%;
    height: 100%;
  }
  .demo-wrap .photos .photo:nth-child(1) {
    background: #FCDBDB;
    transform: rotateY(0) translateZ(394.5px); 
    /* //rotate 一定要写在前面！这里是一个坑，有兴趣的同学可以去看下为什么 */
  }
  .demo-wrap .photos .photo:nth-child(2) {
    background: #F8C8AD;
    transform: rotateY(90deg) translateZ(394.5px);
  }
  .demo-wrap .photos .photo:nth-child(3) {
    background: #EBF48D;
    transform: rotateY(180deg) translateZ(394.5px);
  }
  .demo-wrap .photos .photo:nth-child(4) {
    background: #62E2BA;
    transform: rotateY(270deg) translateZ(394.5px);
  }
  /* .demo-wrap .photos .photo:nth-child(5) {
    background: #887FF2;
    transform: rotateY(180deg) translateZ(194.5px);
  }
  .demo-wrap .photos .photo:nth-child(6) {
    background: #F68CF1;
    transform: rotateY(225deg) translateZ(194.5px);
  }
  .demo-wrap .photos .photo:nth-child(7) {
    background: #F9465F;
    transform: rotateY(270deg) translateZ(194.5px);
  }
  .demo-wrap .photos .photo:nth-child(8) {
    background: #5DD21A;
    transform: rotateY(315deg) translateZ(194.5px);
  } */

  .carousel-control {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 15%;
    font-size: 20px;
    color: #fff;
    text-align: center;
    text-shadow: 0 1px 2px rgb(0 0 0 / 60%);
    background-color: rgba(0,0,0,0);
    filter: alpha(opacity=50);
    opacity: .5;
  }
  .demo-wrap .left .carousel-control{
    position: absolute;
    top: 50%;
    z-index: 5;
    display: inline-block;
    margin-top: -10px;
    left:-300px;
  }

  .demo-wrap .right .carousel-control{
    position: absolute;
    top: 50%;
    z-index: 5;
    display: inline-block;
    margin-top: -10px;
    right:-300px;
  }

  
  .carousel-control.left {
    left: -10px !important;
    background-image: none !important;
}

.carousel-control.right {
    right: -10px !important;
    background-image: none !important;
}


/* ---------------------- */

.shell {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    user-select: none;
}

.shell .item {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(30%, -30%);
    width: 464px;
    height: 298px;
    /* border-radius: 50%; */
    overflow: hidden;
    transition: all .3s ease-in-out;
    z-index: -1;
    opacity: 0;
    background-color: #fff;
}

.item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.item.active {
    opacity: 1;
    z-index: 99;
    transform: translate(-50%, -50%) scale(1.2);
    box-shadow: 0px 0px 105px -35px rgba(0, 0, 0, 0.75);
    transition: transform 1000ms ease-in-out !important;
}

.item.prev {
    z-index: 2;
    opacity: 0.55;
    transform: translate(-225%, -50%);
    width: 232px;
    height: 150px;
    /* transition: transform 1000ms ease-in-out !important; */
}

.item.next {
    z-index: 2;
    opacity: 0.55;
    transform: translate(135%, -50%);
    width: 232px;
    height: 150px;
    /* transition: transform 1000ms ease-in-out !important; */
}

.shell .button-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 645px;
    z-index: 100;
    /* transition: transform 1000ms ease-in-out !important; */
}

.button-container .button {
    color: #fff;
    font-size: 32px;
    cursor: pointer;
    position: relative;
    transition: all 300ms ease-in-out;
}
 
.button-container .button  .prev{
    width: 20px;
    height: 20px;
    margin-left:-10px;
}
.button-container .button .next{
    width: 20px;
    height: 20px;
    margin-right:-10px;
}
.button-container .button:before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 50px;
    background-color: rgba(5, 5, 5, 0.521);
    border-radius: 50%;
    z-index: -99;
}

.iconfont {
    display: block;
}

.button-container .button:nth-child(1) {
    float: left;
}

.button-container .button:nth-child(2) {
    float: right;
}