html, body, div, span, iframe, h1, h2, h3, h4, h5, h6, pre, a, big, cite, code, del, em, img, q, s, samp, small, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, tbody, tr, th, td, canvas, footer, header, menu, nav, section, summary, time, mark, audio, video, p {
    border: none;
    margin: 0;
    padding: 0;
    outline: 0;
}

.header {
    padding: 0 15px;
    display: flex;
    justify-content: space-between;
    height: 45px;
    align-items: center;
    position: fixed;
    top: 0;
    background: #FFFFFF;
    z-index: 999;
    width: 100%;
    box-sizing: border-box;
    border-bottom: 1px solid #E6E6E6;
}

.header a {
    display: inline-block;
    height: 30px;
}

.header a img {
    height: 100%;
}

.header .right_btn {
    display: inline-block;
    height: 50%;
}

.header .right_btn img {
    height: 100%;
}

body {
    padding-top: 45px;
}

#menu {
    display: none;
    width: 0;
}

#menu_layer {
    display: none;
}

.footer {
    border-top: 1px solid #E6E6E6;
}

.footer .icon {
    height: 60px;
    line-height: 60px;
    display: flex;
    justify-content: space-around;
    border-bottom: 1px solid #E6E6E6;
}

.footer .icon img {
    vertical-align: middle;
}

.footer .word {
    color: #999999;
    font-size: 13px;
    text-align: center;
    display: inline-block;
    width: 100%;
    height: 33px;
    line-height: 33px;
}

#menu {
    font-size: 17px;
    font-family: Microsoft YaHei;
    color: #333333;
    height: calc(100% - 45px);
    position: fixed;
    top: 45px;
    background: #ffffff;
    right: 0;
    z-index: 999;
    text-align: right;
}

#menu .item {
    height: 75px;
    line-height: 75px;
    border-bottom: 1px solid #E6E6E6;
    padding-right: 40px;
    display: block;
    white-space: nowrap;
    text-decoration: none;
    color: #333;
}

#menu .item:first-child {
    border-top: 1px solid #E6E6E6;
}

#menu_layer {
    height: calc(100% - 45px);
    background: #000;
    opacity: 0.6;
    position: fixed;
    z-index: 998;
    width: 100vw;
    top: 45px;
}