/* 导航栏 */
.navf {
    background-color: #fff;
    clear: both;
    position: sticky;
    top: 0px;
    z-index: 3;
}

    .navf span {
        display: block;
    }

.nav a {
    display: block;
    background-color: #fff;
    float: left;
    width: 25%;
    height: 40px;
    line-height: 40px;
    text-align: center;
    font-size: 15px;
    color: #333333;
}

    .nav a:hover {
        color: #f90;
        position: relative;
    }

        .nav a:hover span {
            position: absolute;
            top: 36px;
            left: 42%;
            width: 50px;
            color: #f90;
            border-bottom: 4px solid #f90;
        }

/* 公共样式 */
* {
    margin: 0;
    padding: 0;
    list-style: none;
    box-sizing: border-box;
}

a {
    text-decoration: none;
}

html,
body {
    height: 100%;
    width: 100%;
}

body {
    display: block;
    flex-direction: inherit;
    height: 100%;
    min-width:1440px
}


.fs14 {
    font-size: 14px;
}

.fs16 {
    font-size: 16px;
}

.fs18 {
    font-size: 18px;
}

.fs20 {
    font-size: 20px;
}

.fs24 {
    font-size: 24px;
}

.fs30 {
    font-size: 30px;
}

p {
    margin: 0 0;
}

.color33 {
    color: #333333;
}
/* 标题底线样式 */
.fafa {
    margin: 0px auto 0 auto;
}

.toptextp {
    color: #000000;
    height: 57px;
    line-height: 50px;
}

.toptextbb {
    border-bottom: 1px solid #dcdcdc;
    position: relative;
}

    .toptextbb::after {
        position: absolute;
        bottom: 0px;
        left: 0px;
        content: '';
        display: inline-block;
        width: 50px;
        height: 4px;
        background-color: #f90;
        box-shadow: 0px 2px 8px rgb(255 153 0);
    }

.aboutnew {
    display: block;
    width: 100%;
    height: 40px;
    line-height: 40px;
    background: rgba(255, 153, 0, 0.1);
    color: #000;
    text-align: center;
}

.toptile {
    max-width: 1280px;
    width: 100%;
    height: 40px;
    line-height: 40px;
    position: fixed;
    top: 0;
    margin: 0 auto;
    background: #fff;
    z-index: 999;
}

    .toptile a {
        flex: 1;
        text-align: center;
    }

        .toptile a:hover {
            color: #f90;
        }