/* 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: url(../images/mtop_bg.png) no-repeat center 0/100% 100%;
}

.m-logo {
    display: block;
    position: absolute;
    left: 1.5rem;
    top: 5px;
}

.m-logo img {
    height: 45px;
}

.m-top .btn {
    position: absolute;
    z-index: 100;
    top: 9px;
    right: 10px;
    text-align: center;
}

.m-top .btn span {
    display: block;
    width: 30px;
    height: 4px;
    background: #ffffff;
    -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: 0;
        top: 0;
        width: 100%;
        background: rgba(0, 0, 0, 0.8);
    }
    .logo {
        position: absolute;
        z-index: 80;
        left: 0;
        top: 0;
        width: 27.5vw;
        height: 7.2vw;
        padding: 0.6vw 0 0 10vw;
        background: url(../images/logo_bg.png) no-repeat 0 0/100%;
    }
    .logo img {
        width: 7.2vw;
    }
    .nav {
        padding: 0 0 0 32vw;
    }
    .nav ul {
        display: flex;
    }
    .nav ul li {
        padding: 0 1px;
    }
    .nav ul a {
        position: relative;
        z-index: 1;
        display: block;
        font-size: 1vw;
        line-height: 3vw;
        color: #fff;
        overflow: hidden;
    }
    .nav ul a span {
        position: relative;
        z-index: 50;
        display: block;
        padding: 0 1vw;
    }
    /* a00100 */
    .nav ul a:before,
    .nav ul a:after {
        position: absolute;
        top: 50%;
        content: '';
        width: 20px;
        height: 20px;
        background: #a00100;
        border-radius: 50%;
    }
    .nav ul a:before {
        left: -20px;
        transform: translate(-50%, -50%);
    }
    .nav ul a:after {
        right: -20px;
        transform: translate(50%, -50%);
    }
    .nav ul a:hover:before {
        animation: criss-cross-left 1.2s both;
    }
    .nav ul a:hover:after {
        animation: criss-cross-right 1.2s both;
    }
    @keyframes criss-cross-left {
        0% {
            left: -1vw;
        }
        50% {
            left: 50%;
            width: 1.2vw;
            height: 1.2vw;
        }
        100% {
            left: 50%;
            width: 10vw;
            height: 10vw;
        }
    }
    @keyframes criss-cross-right {
        0% {
            right: -1vw;
        }
        50% {
            right: 50%;
            width: 1.2vw;
            height: 1.2vw;
        }
        100% {
            right: 50%;
            width: 10vw;
            height: 10vw;
        }
    }
}