/*====================导航*********/



{

    width: 100%;

    position: fixed;

    top: 0;

    left: 0;

    z-index: 999;

    height: 80px;

    border-bottom: 1px solid #5a5959;

    /*background: rgba(28, 35, 39, 0.8);*/

}





/*左侧logo*/



.left {

    width: 20%;
    display:none;
}



.left a img {

    height: 60px;

    margin-top: 10px;

}



.left .img2 {

    display: none;

}





/*右侧*/



.nav {

    -webkit-transition: 0.5s;

    -moz-transition: 0.5s;

    -o-transition: 0.5s;

    transition: 0.5s;

    height: 100%;

    line-height: 80px;

    display: block;

}



.navbar_nav li {

float: left;

position: relative;

display: block;

width: 14%;
}



.navbar_nav li:after {

    content: "";

    width: 0;

    height: 2px;

    background: #2258a0;

    position: absolute;

    bottom: 0;

    left: 0;

    transition: all 0.5s ease 0s;

}



.navbar_nav li:hover:after {

    width: 100%;

}



.navbar_nav li a {

text-decoration: none;

height: 100%;



display: block;

-webkit-transition: 0.5s;

-moz-transition: 0.5s;

-o-transition: 0.5s;

transition: 0.5s;

color: #41516ds;

font-size: 18px;
}





/* 

.navbar_nav li:hover a {

    color: #2258a0;

} */



.navbar_nav li.dropdown {

display: inherit;

position: relative;

width: 14%;
}



.navbar_nav li.dropdown .jt {

    width: 20px;

    height: 20px;

    background: url(i/top.png) no-repeat;

    background-size: 100% 100%;

    display: block;

}



.navbar_nav li.dropdown .dropdown_menu {

    display: none;

    position: absolute;

    width: 100%;

    background: #41516d;

    box-shadow: 0 15px 27px 0 rgba(167, 165, 165, 0.38);

   

}



.navbar_nav li.dropdown .dropdown_menu a {

    font-size: 14px;

    color: #666;

    padding: 0 10px;

    line-height: 40px;

    text-align: center;

    background: #41516d;

    margin-bottom: 1px;

}



.navbar_nav li.dropdown:hover .dropdown_menu {

    display: block;

    background: #f3f3f3;

    -webkit-transition: 0.5s;

    -moz-transition: 0.5s;

    -o-transition: 0.5s;

    transition: 0.5s;

}



.navbar_nav li.dropdown:hover .dropdown_menu a {

    color: #fff;

}



.navbar_nav li.dropdown:hover .dropdown_menu a:hover {

    color: #fff;

    background: #2258a0;

}



.navbar_nav {min-height: 50px;}



.tel {

    float: right;

    font-size: 20px;

    color: #FFF;

}





/*白色背景的头部*/



.header.on {

    background: #FFF;

}



.header.on .left .img1 {

    display: none;

}



.header.on .left .img2 {

    display: block;

}



.header.on .navbar_nav li a {

    color: #000;

}



.header.on .tel {

    color: #b80e15;

}



#navToggle {

    display: none;

}



.m_nav {

    position: fixed;

    top: 0px;

    box-shadow: 0 15px 27px 0 rgba(167, 165, 165, 0.38);

    width: 100%;

    height: 100%;

    background: #fff;

    transition: all ease 0.5s;

    -webkit-transition: all ease 0.5s;

    z-index: 1000;

    opacity: 1;

    visibility: visible;

    margin-top: 0;

    overflow-y: auto;

    transition: all .6s cubic-bezier(.77, 0, .175, 1) 0ms;

    top: 0;

    transform: translateX(100%);

}



.m_nav.open {

    transform: translateX(0);

}



.m_nav .top {

    height: 60px;

    padding: 20px;

    box-sizing: border-box;

}



.m_nav .top .closed {

    width: 30px;

    height: 30px;

    vertical-align: middle;

    float: right;

    cursor: pointer;

}



.m_nav .logo {

    width: 100%;

    margin: 0 auto;

}



.m_nav .logo img {

    height: 50px;

    display: block;

    margin: 30px auto;

}



.m_nav .ul {

    margin-top: 30px;

}




.m_nav .ul li {

    padding: 0 20px;

    border-bottom: 1px solid #f5f5f5;

    transform: translateY(0);

    -webkit-transform: translateY(100%);

    transform: translateY(100%);

    -webkit-transition: all .6s cubic-bezier(.77, 0, .175, 1) 0ms;

    transition: all .6s cubic-bezier(.77, 0, .175, 1) 0ms;

    opacity: 0;

}



.m_nav.open .ul li {

    opacity: 1;

    -webkit-transform: translateY(0);

    transform: translateY(0);

}



.m_nav .ul li:nth-child(1) {

    -webkit-transition: all .2s cubic-bezier(.77, 0, .175, 1) 0ms;

    transition: all .2s cubic-bezier(.77, 0, .175, 1) 0ms;

}



.m_nav .ul li:nth-child(2) {

    -webkit-transition: all .4s cubic-bezier(.77, 0, .175, 1) 0ms;

    transition: all .4s cubic-bezier(.77, 0, .175, 1) 0ms;

}



.m_nav .ul li:nth-child(3) {

    -webkit-transition: all .6s cubic-bezier(.77, 0, .175, 1) 0ms;

    transition: all .6s cubic-bezier(.77, 0, .175, 1) 0ms;

}



.m_nav .ul li:nth-child(4) {

    -webkit-transition: all .8s cubic-bezier(.77, 0, .175, 1) 0ms;

    transition: all .8s cubic-bezier(.77, 0, .175, 1) 0ms;

}



.m_nav .ul li:nth-child(5) {

    -webkit-transition: all 1.0s cubic-bezier(.77, 0, .175, 1) 0ms;

    transition: all 1.0s cubic-bezier(.77, 0, .175, 1) 0ms;

}



.m_nav .ul li:nth-child(6) {

    -webkit-transition: all 1.2s cubic-bezier(.77, 0, .175, 1) 0ms;

    transition: all 1.2s cubic-bezier(.77, 0, .175, 1) 0ms;

}



.m_nav .ul li a {

    display: block;

    text-decoration: none;

    color: #333;

    font-size: 16px;

    height: 50px;

    line-height: 50px;

    width: 100%;

}



.m_nav .ul li .dropdown_menu {

    display: none;

}



.m_nav .ul li.dropdown.active .dropdown_menu {

    display: block;

}



.m_nav .ul li .dropdown_menu a {

    display: block;

    height: 50px;

    line-height: 50px;

    padding: 0 40px;

    box-sizing: border-box;

    border-bottom: 1px solid #f5f5f5;

}



.m_nav .ul li .dropdown_menu a:last-child {

    border: none;

}



.banner {

    width: 100%;

}



.banner img {

    width: 100%;

}



@media screen and (max-width: 1200px) {

    .navbar_nav li a {

       

    }

}



@media screen and (max-width: 992px) {

    #navToggle {

        height: 100%;

        padding: 9px 15px;

        margin-right: -15px;

        display: inline-block;

        float: right;

    }

    #navToggle span {

        position: relative;

        width: 25px;

        height: 1px;

        margin-top: 19px;

    }

    #navToggle span:before,

    #navToggle span:after {

        content: '';

        position: relative;

        width: 100%;

        height: 1px;

        left: 0;

    }

    #navToggle span,

    #navToggle span:before,

    #navToggle span:after {

        -webkit-transition: 0.3s;

        -moz-transition: 0.3s;

        -o-transition: 0.3s;

        transition: 0.3s;

        display: block;

        background: #4f4f4f;

    }

    #navToggle span:before {

        top: 8px;

    }

    #navToggle span:after {

        bottom: 10px;

    }

    #navToggle.open span:before {

        top: 10px;

        -webkit-transform: translateY(-11px) rotate(-45deg);

        -moz-transform: translateY(-11px) rotate(-45deg);

        -ms-transform: translateY(-11px) rotate(-45deg);

        -o-transform: translateY(-11px) rotate(-45deg);

        transform: translateY(-11px) rotate(-45deg);

    }

    #navToggle.open span:after {

        bottom: 12px;

        -webkit-transform: translateY(10px) rotate(45deg);

        -moz-transform: translateY(10px) rotate(45deg);

        -ms-transform: translateY(10px) rotate(45deg);

        -o-transform: translateY(10px) rotate(45deg);

        transform: translateY(10px) rotate(45deg);

    }

    #navToggle.open span {

        background: none;

    }

    #navToggle.open span:before,

    #navToggle.open span:after {

        background: #4f4f4f;

    }

    .nav {

        display: none;

    }

    .banner img {

        height: 600px;

        object-fit: cover;

    }

    .m_nav .tel {

        text-align: center;

        line-height: 50px;

        font-size: 20px;

    }

    .m_nav .tel img {

        display: inline-block;

        vertical-align: middle;

    }

}