* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background: #f5f7f9;
    color: #40454b;
    font-family: Arial, "Microsoft YaHei", sans-serif;
    font-size: 14px;
    line-height: 1.7;
}

a {
    color: #333;
    text-decoration: none;
}

a:hover {
    color: #2788e8;
}

img {
    border: 0;
}

.wrap {
    width: 1100px;
    max-width: calc(100% - 24px);
    margin: 0 auto;
}

.header {
    height: 66px;
    background: #fff;
    border-bottom: 1px solid #edf0f3;
}

.header .wrap {
    height: 66px;
    display: flex;
    align-items: center;
}

.logo {
    width: 145px;
    height: 50px;
    display: flex;
    align-items: center;
    margin-right: 34px;
    overflow: hidden;
}

.logo img {
    display: block;
    width: 126px;
    height: auto;
}

.nav {
    display: flex;
    align-items: center;
    height: 66px;
    white-space: nowrap;
}

.nav a {
    height: 66px;
    line-height: 66px;
    padding: 0 17px;
    color: #666;
    font-size: 16px;
    border-bottom: 3px solid transparent;
}

.nav a.active,
.nav a:hover {
    color: #222;
    font-weight: bold;
    border-bottom-color: #2788e8;
}

.search {
    margin-left: auto;
    width: 190px;
    height: 34px;
    display: flex;
    background: #f5f7f9;
    border: 1px solid #edf0f3;
    border-radius: 3px;
    overflow: hidden;
}

.search input {
    width: 145px;
    border: 0;
    background: transparent;
    outline: 0;
    padding: 0 11px;
    color: #777;
}

.search button {
    width: 44px;
    border: 0;
    background: transparent;
    color: #9aa2aa;
    cursor: pointer;
}

.account {
    margin-left: 20px;
    color: #a0a5aa;
    white-space: nowrap;
}

.account a {
    color: #666;
    margin: 0 6px;
}

.crumb {
    height: 48px;
    margin-top: 14px;
    background: #fff;
    border: 1px solid #edf0f3;
    border-radius: 3px;
    display: flex;
    align-items: center;
    padding: 0 16px;
    color: #a1a7ad;
}

.crumb a {
    color: #8d949b;
}

.crumb em {
    font-style: normal;
    margin: 0 8px;
    color: #c5cbd0;
}

.footer {
    margin-top: 24px;
    background: #fff;
    border-top: 1px solid #e7eaed;
    padding: 24px 0;
    color: #9ca2a8;
    text-align: center;
    font-size: 13px;
}

@media (max-width: 900px) {
    .header {
        height: auto;
    }

    .header .wrap {
        height: auto;
        flex-wrap: wrap;
        padding: 8px 0;
    }

    .logo {
        margin-right: 10px;
    }

    .nav {
        height: 46px;
        order: 3;
        width: 100%;
        overflow-x: auto;
    }

    .nav a {
        height: 46px;
        line-height: 46px;
        padding: 0 12px;
    }

    .search,
    .account {
        display: none;
    }
}