body {
    background: url(./images/background.png) #f0f5ff no-repeat center top;
    background-size: 100% 66.94444vw;
}

.body {
    width: 980px
}

.navigator {
    position: relative;
    display: flex;
    height: 70px;
    background: url(./logo.png) no-repeat left center;
    background-size: 144px 40px;
}

.navigator .item {
    padding: 0 20px;
    height: 70px;
    line-height: 70px;
    font-size: 16px;
    color: #777;
}

.navigator .item:hover {
    color: #333;
}

.navigator .item:first-child {
    margin-left: 180px;
}

.navigator .official {
    position: absolute;
    right: 0;
    top: 18px;
    width: 80px;
    height: 32px;
    line-height: 32px;
    font-size: 14px;
    color: #555;
    background: #fff;
    text-align: center;
    border-radius: 6px;
}

.copyright {
    display: flex;
    flex-direction: column;
    justify-content: center;
    margin: 100px auto 20px;
    font-size: 14px;
    color: #aaa;
}

.copyright div {
    display: flex;
    justify-content: center;
}

.copyright div p {
    padding: 0 10px;
    height: 30px;
    line-height: 30px;
}

.copyright div p a {
    color: #aaa;
}