.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 30px;
}

.header img {
    width: 200px;
}

.header p a {
    font-size: 14px;
    margin-left: 20px;
}

.header p a:hover {
    color: red;
}

body,
html {
    background: #f5f5f7;
}

.footer {
    margin-top: 200px;
    padding-bottom: 50px;
}

.footer .info {
    display: flex;
    justify-content: space-around;
}

.footer .beian {
    display: flex;
    justify-content: center;
    margin-top: 25px;
    padding-top: 25px;
    border-top: 2px solid #999;
    color: #666;
}

.footer .beian a,
.footer .beian span {
    padding: 0 16px;
}

.footer .a1 h3 {
    font-size: 24px;
    margin-bottom: 40px;
}

.footer .a1 a {
    font-size: 20px;
    color: #666;
    margin-top: 20px;
    display: block;
}

.footer .a1 a:hover {
    color: red;
}

.footer .a2 h3 {
    font-size: 24px;
    margin-bottom: 40px;
}

.footer .a2 div {
    display: flex;
}

.footer .a2 div>img {
    width: 145px;
    height: 145px;
}

.footer .a2 div p {
    height: 145px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    margin-left: 20px;
}

.footer .a2 div p a {
    display: block;
}

.footer .a2 div p a img {
    width: 208px;
    height: 66px;
}

.ysBox {
    margin-top: 80px;
}

.ysBox h2 {
    font-size: 36px;
    font-weight: bold;
    border-bottom: 1px solid #dedede;
    padding-bottom: 30px;
}

.ysBox h3 {
    margin-top: 50px;
    font-size: 20px;
    margin-bottom: 30px;
}

.ysBox p {
    font-size: 16px;
    line-height: 24px;
    color: #666;
    margin-bottom: 20px;
}