/* 手机版*/

body {
    position: relative;
    overflow-x: hidden;
    background: #333;
}

.m-top {
    position: absolute;
    z-index: 99;
    left: 0;
    top: 0;
    width: 100%;
    height: 60px;
    background: #fff;
}

.m-logo {
    display: block;
    position: absolute;
    left: 10px;
    top: 9px;
}

.m-logo img {
    height: 42px;
}

.m-top .btn {
    position: absolute;
    z-index: 100;
    top: 19px;
    right: 10px;
    text-align: center;
}

.m-top .btn span {
    display: block;
    width: 30px;
    height: 4px;
    background: #ca0000;
    -webkit-transition: 0.3s;
    transition: 0.3s;
}

.m-top .btn span:nth-child(2) {
    margin: 5px 0;
}

.cross span:nth-of-type(1) {
    transform: translateY(9px) rotate(-45deg);
}

.cross span:nth-of-type(2) {
    opacity: 0;
}

.cross span:nth-of-type(3) {
    transform: translateY(-9px) rotate(45deg);
}

.m-nav {
    position: absolute;
    z-index: 99;
    right: -150px;
    top: 0;
    width: 0;
    height: 100%;
    overflow: hidden;
    padding-top: 86px;
    background: #333;
}

.m-nav li a {
    display: block;
    font: 400 16px/36px "微软雅黑";
    color: #fff;
    text-align: center;
}

.m-menu {
    margin: 0 auto;
}

.m-menu li {
    float: left;
    width: 33.3%;
    padding: 5px;
}

.m-menu li a {
    display: block;
    font: 400 14px/36px "Microsft yahei";
    color: #1a1a1a;
    text-align: center;
    background: rgba(255, 255, 255, 0.6);
}

.wrapper {
    position: relative;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow-x: hidden;
    background: #fff;
}

header {
    display: none;
}

@media (min-width: 1200px) {
    header {
        display: block;
        position: absolute;
        z-index: 99;
        left: 5%;
        top: 0;
        width: 90%;
        background: rgba(255, 255, 255, 0.8);
    }

    .head {
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 1200px;
        margin: 0 auto;
    }

    .logo {
        display: block;
    }

    .nav {}

    .nav ul {
        display: flex;
    }

    .nav ul li {
        padding: 0 30px;
    }

    .nav ul a {
        display: block;
        padding: 15px 0;
        font: 400 16px/30px '微软雅黑';
        color: #000;
        background: url(../images/nav_li_bg.png) no-repeat center bottom/0 5px;
        transition: 0.3s;
    }

    .nav ul a:hover {
        color: #004672;
        background-size: 100% 5px;
    }
}