body{
    margin:0;padding:0;overflow-x: hidden;
}
ul li{list-style: none;}
:hover{transition: all .5s ;}
.navbar-dark .navbar-nav .nav-link{    color: #252525;
}
.navbar-dark .navbar-nav .active>.nav-link{
    color: #0E5B4A;
    border-bottom: 1px solid #0E5B4A;
}
.color_red{
    color:#E8781F;
}
 .nav_bg{
    background:url("../images/head-bg.jpg") no-repeat top right; padding-top:20px;
    padding-left:0px;padding-right: 0px;
}
.navbar-nav{
    margin-top:80px;
}
.navbar-nav  .open .dropdown-menu{display: block;}
.navbar-dark .navbar-nav .active>.nav-link:hover{border-bottom: 1px solid #0E5B4A;}
header{height: 160px; overflow: hidden; }
.lang-tab{
    width: 102px;
    height: 26px;
    background: #f0f0f0;
    border-radius: 20px;
}
.lang-tab a{
    font-size: 12px;
    color: #0E5B4A;
    display: block;
    width: 30%;
    height: 100%;
    border-radius: 20px;
    text-align: center;
    float: left;
    line-height: 26px;
}
.lang-tab .en{
    width: 70%;
}
.lang-tab .cn{
    width: 30%;
}
.lang-tab .active{
    color: #ffffff;
    background: #0E5B4A;
}
section{
    padding-bottom: 30px;
}
section h3{
    width: 80%;
    margin: 0 auto;
    padding-top: 50px;
    text-align:center;
    letter-spacing:.1em;
    padding-bottom: 50px;
}
.floor_1 p{
    text-align: justify;
}
.more{
    display: block;
    margin:0 auto;
    margin-top: 50px;
    width: 130px;
    height: 30px;
    line-height: 30px;
    border-radius: 15px;
    text-align: center;
    background-color: #F2EFEA;
}
.more:hover{
    background-color: #0E5B4A;
    color: #ffffff;
}
.floor_2 span{
    display: block;
    width: 450px;
    height: 320px;
    padding: 50px;
    font-size: 24px;
    color: #333;
    font-weight: bold;
    text-align: center;
    padding-top: 100px;
    margin:0 auto;
}
.floor_2 h3,.floor_3 h3{
    padding-bottom: 10px;
}
.floor_2 .more,.floor_3 .more{
    margin-bottom: 50px;
}
.product1 span{
    background: url(../images/product_bg1.jpg);
    background-size: 100% 100%; 
}
.product2 span{
    background: url(../images/product_bg2.jpg);
    background-size: 100% 100%;
}
.color_a{
  color: #333;
}

.color_a:hover {
    color:#E8781F;
}
.floor_3 small{
    display: block;
    width: 70%;
    text-align: center;
    margin:0 auto;
    margin-bottom: 30px;
    font-size: 100%;
}
.floor_3 .li{
    border-radius: 20px;
    box-shadow: 0px 2px 2px 1px #f0f0f0;
    padding: 0;
    margin: 0 auto;
}
.floor_3 .li ul{
    padding-top: 30px;
    padding-bottom: 30px;
}
.floor_3 .li ul li{
    list-style: none;
    width: 100%;
    text-align: center;
    line-height: 30px;
    margin-left: -15px;
}
footer{
    width: 100%;
    height: 100px;
    background-color: #0A4438;
    margin:0;padding: 0;overflow: hidden;
    padding-top: 25px;
}
footer p{
    color: #ffffff;
    height: 20px;
    text-align: center;
    line-height: 20px;
}
footer p a{
  color: #ffffff;
}
/*banner*/
.banner {
    height: 220px;
    overflow: hidden;
    margin-top: 20px;
    margin-bottom:20px;
    }
.banner .swiper-slide img{
    width: 100%;

}
.banner .swiper-wrapper .col-sm-15, .banner .swiper-wrapper .col-xl-15{
  padding-left: 5px;padding-right: 5px;
}
.swiper-container .swiper-wrapper{
    -webkit-transition-timing-function: linear; /*之前是ease-out*/
    -moz-transition-timing-function: linear;
    -ms-transition-timing-function: linear;
    -o-transition-timing-function: linear;
    transition-timing-function: linear;
}
.about1 p{
    text-align: justify;
    font-size: 14px;
    line-height: 30px;
}
.about2 .col-xl-3{
    padding-left:10px;
    padding-right: 10px;
}
.about2 .wh{
    background-color: #ffffff;
    padding-top:35px;
    height: 550px;
}
.about2 .wh p{
    text-align: justify;
}
.about2 .wh span{
    display: block;
    width: 90%;
    margin: 0 auto;
    font-size: 22px;
    font-weight: bold;
    text-align: center;
    line-height: 30px;
    color: #0E5B4A;

}
.about2 .wh hr{
    width: 80%;
}
.about2 .wh p{
  font-size: 14px;
  line-height: 25px;
    /* text-align: justify;
    word-break:break-all;*/
    padding-left: 10%;
    padding-right: 10%;
    padding-top:2%;
}
.about-p1,.about-p2,.about-p3,.about-p4{width: 23%;margin-right: 10px;}
.about-p3{width: 27%;}
.nav-bread{ border-left: 5px solid #E8781F; padding-left:10px;}
.nav-bread a{
    color: #0E5B4A;
}
.nav-bread a:hover{
    color:#E8781F;
}
.product1 p{
text-align: justify;
font-size: 14px;line-height: 30px;
letter-spacing:.5px;
}
.product1 .p_li{
    margin-bottom: 3%;
}
.capabilities p{
    text-align: justify;
    line-height: 30px;
}
.materials h3{
    color: #E8781F;
    text-align: left;
    width: 100%;
    padding-left: 0;
font-weight: 800;
line-height: 40px;
letter-spacing: 6px;
}
.materials p{text-align: justify;line-height: 30px;}
 .materials .img{height:inherit;/*继承父元素高度 */
     display:flex;}
.materials .img img{
    display: block;
    align-self:center;
}
.contact h1{
    text-align: left;
    color: #E8781F;
}
.contact .info{
padding-left: 5%;
padding-right: 5%;
}

.contact .info p{
    text-decoration: 1px solid #333 underline;
}
#id{width:196px; height:97px}

@media (max-width: 991.98px) {
    .nav_bg{
        background: none;
    }
    .navbar-toggler{
        background-color: #0E5B4A;
    }
    .navbar-dark .offcanvas-collapse {
        background-color: #e8e8e7;
    }
    .floor_1 .col-sm-12 {
        padding-bottom:20px;
    }
    .floor_2 .col-sm-12 {
        margin-bottom:20px;
    }
    .about-p1,.about-p2,.about-p3,.about-p4{
      width: 100%;margin-left: 0%;margin-right: 0%;
    }
    .about2 .wh{
      height: auto;
      padding-bottom: 30px;
      margin-bottom: 20px;
    }
    .floor_2 span{
      width: 100%;
    }
    .floor_3 .col-sm-12{
      margin-bottom: 10px;
    }
    .navbar-brand{padding-top:0px;padding-bottom: 0px;}
}