/*====================导航*********/
.nav_pc_logo {
    float: left;
    height: 4.0rem;
    margin-top: 2.0rem;
}

    .nav_pc_logo img {
        height: 4rem;
    }

.header {
    width: 100%;
    z-index: 999;
}
    /*左侧logo*/

    .header .left a img {
        height: 100%;
        max-width: 100%
    }

    .header .left .img2 {
        display: none;
    }
    /*右侧*/
    .header .nav {
        -webkit-transition: 0.5s;
        -moz-transition: 0.5s;
        -o-transition: 0.5s;
        transition: 0.5s;
        height: 100%;
        line-height: 50px;
        display: block;
    }

    .header .navbar_nav li {
        float: left;
        position: relative;
        display: block;
    }

        .header .navbar_nav li:after {
            content: "";
            width: 0;
            height: 2px;
            background: #54a6f8;
            position: absolute;
            bottom: 0;
            left: 0;
            transition: all 0.5s ease 0s;
        }

        .header .navbar_nav li:hover:after {
            width: 100%;
        }

        .header .navbar_nav li a {
            text-decoration: none;
            height: 100%;
            padding: 0 2rem;
            display: block;
            -webkit-transition: 0.5s;
            -moz-transition: 0.5s;
            -o-transition: 0.5s;
            transition: 0.5s;
            font-size: 1rem;
            line-height: 8rem;
        }

        .header .navbar_nav li:hover a {
            color: #111;
        }

        .header .navbar_nav li.dropdown {
            display: inherit;
            position: relative;
        }

            .header .navbar_nav li.dropdown .jt {
                width: 20px;
                height: 20px;
                background: url(i/top.png) no-repeat;
                background-size: 100% 100%;
                display: block;
            }

            .header .navbar_nav li.dropdown .dropdown_menu {
                display: none;
                position: absolute;
                top: 100px;
                width: 100%;
                background: #fff;
                box-shadow: 0 15px 27px 0 rgba(167,165,165,0.38);
                width: 120%;
                left: -10%;
                z-index: 9999;
            }

                .header .navbar_nav li.dropdown .dropdown_menu a {
                    font-size: 14px;
                    color: #666;
                    padding: 0 10px;
                    line-height: 40px;
                    text-align: center;
                    background: #fff;
                    margin-bottom: 2px;
                }

            .header .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;
            }

                .header .navbar_nav li.dropdown:hover .dropdown_menu a {
                    color: #666;
                }

                    .header .navbar_nav li.dropdown:hover .dropdown_menu a:hover {
                        color: #fff;
                        background: #00b552;
                    }
    /*白色背景的头部*/

    .header.on .left .img1 {
        display: none;
    }

    .header.on .left .img2 {
        display: block;
    }

    .header.on .navbar_nav li a {
    }

    .header.on .navbar_nav li:hover a {
        color: #999;
    }

#navToggle {
}

.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 #ccc;
            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 #0084e1;
    }

        .m_nav .ul li .dropdown_menu a:last-child {
            border: none;
        }

.banner {
    width: 100%;
}

.nav_mo_logo {
    float: left;
    width: calc(100% - 7rem);
    height: 3.0rem;
    margin-left: 1.5rem;
}

    .nav_mo_logo img {
        height: 3rem;
        max-width: 100%;
    }

.nav_mo_ico {
    float: right;
    width: 3.0rem;
    height: 3.0rem;
    margin-right: 1.5rem;
}

.nav_mo_ico {
    display: block;
    color: #333;
    text-align: center;
    line-height: 3.0rem;
    height: 3.0rem;
    font-size: 2.0rem;
}

.nav_mo {
    margin: 1.58rem 0;
}

.nav_mo {
    display: none;
}

@media screen and (max-width: 640px) {
    .header .left {
        padding-top: 0;
    }

    .nav_mo {
        display: block;
    }

    .header {
        padding: 0 0px;
        width: auto;
        margin: 1.0rem;
    }

        .header #navToggle {
            width: 3.0rem;
            height: 3.0rem;
            text-align: center;
            display: block;
            line-height: 3.0rem;
            display: inline-block;
            float: right;
        }

            .header #navToggle i {
                display: block;
                font-size: 2.0rem;
                line-height: 3.0rem;
            }

            .header #navToggle span {
                width: 25px;
                height: 1px;
                margin-top: 10px;
            }

                .header #navToggle span:before,
                .header #navToggle span:after {
                    content: '';
                    position: relative;
                    width: 100%;
                    height: 1px;
                    left: 0;
                }

                .header #navToggle span,
                .header #navToggle span:before,
                .header #navToggle span:after {
                    -webkit-transition: 0.3s;
                    -moz-transition: 0.3s;
                    -o-transition: 0.3s;
                    transition: 0.3s;
                    display: block;
                    background: #000;
                }

                    .header #navToggle span:before {
                        top: 8px;
                    }

                    .header #navToggle span:after {
                        bottom: 10px;
                    }

            .header #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);
            }

            .header #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);
            }

            .header #navToggle.open span {
                background: none;
            }

                .header #navToggle.open span:before,
                .header #navToggle.open span:after {
                    background: #4f4f4f;
                }

    .header {
        display: none;
    }

        .header .nav {
        }

    .banner img {
        height: 300px;
        object-fit: cover;
    }

    .header .left {
        width: 67%;
        height: 3.0rem;
    }

        .header .left img {
            width: 100%;
        }
}