html, body {
    margin: 0;
    padding: 0;
    font-size: 100px;
}
.header {
    height: 0.5rem;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #fff;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    box-shadow: 0px 4px 10px 0px rgba(0, 0, 0, 0.1);
}
.top-header {
    background-color: transparent;
    box-shadow: none;
}
.app-header-scroll {
    background-color: #fff;
}
.empty-header {
    height: 0.5rem;
}
.header img.logo {
    width: 0.9rem;
    margin-left: 0.18rem;
}
.header.top-header img.logo2 {
    display: none;
}
.header.top-header img.img2 {
    display: none;
}
.header.top-header.app-header-scroll img.logo1 {
    display: none;
}
.header.top-header.app-header-scroll img.logo2 {
    display: block;
}
.header.top-header.app-header-scroll img.img2 {
    display: block;
}
.header.top-header.app-header-scroll img.img3 {
    display: none;
}
.mask {
    display: block;
    width: 100%;
    height: calc(100% - 0.5rem);
    background-color: rgba(0,0,0,0.5);
    position: fixed;
    top: 0.5rem;
    left: 0;
    z-index: 10;
}
.header .menu-btn {
    height: 0.5rem;
    width: 0.54rem;
    display: flex;
    justify-content: center;
    align-items: center;
}
.header img.index-img-btn {
    width: 0.18rem;
    display: block;
}
.menu-content {
    position: fixed;
    height: 0;
    width: 100%;
    display: none;
    opacity: 0;
    top: 0.5rem;
    left: 0;
    z-index: 11;
    background-color: #fff;
}
.dn {
    display: none!important;
}
.menu-content.show-menu {
    height: 3rem;
    opacity: 1;
    display: block;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
}
.menu-item {
    display: block;
    height: 0.5rem;
    line-height: 0.5rem;
    font-size: 0.18rem;
    text-align: right;
    padding: 0 0.18rem;
    color: #333;
    text-decoration: none;
}
.menu-item.active {
    background: rgba(0, 122, 255, 0.08);
    color: #007AFF;
    font-weight: 500;
}
.img-box img {
    display: block;
    width: 100%;
    object-fit: cover;
}
.about-content {
    font-size: 0.14rem;
    padding: 0.18rem;
}
.h1 {
    font-size: 0.18rem;
    font-weight: normal;
    color: #333;
}
.about-line {
    height: 1px;
    background: #DDDDDD;
}
.h2 {
    text-align: center;
    font-weight: 500;
    color: #333333;
    font-size: 0.18rem;
}
.text {
    font-weight: normal;
    color: #666;
    line-height: 0.24rem;
}
.h3 {
    color: #333333;
    font-weight: 600;
}
.h4 {
    font-size: 0.18rem;
    font-weight: 500;
    color: #333;
    text-align: center;
}
.mt40 {
    margin-top: 0.4rem;
}
.mt20 {
    margin-top: 0.2rem;
}
.mb20 {
    margin-bottom: 0.2rem;
}
.img-box {
    position: relative;
}
.absolute-link {
    display: block;
    background: transparent;
    /*background: rgba(0, 0, 0, 0.5);*/
    position: absolute;
    z-index: 1;
    outline: none;
    color: transparent;
    -webkit-tap-highlight-color: transparent;
    opacity: 0;
}
.absolute-link:active,
.absolute-link:hover,
.absolute-link:focus,
.absolute-link:visited,
.absolute-link:focus-within,
.absolute-link:focus-visible,
.absolute-link:target {
    outline: none;
    background-color: transparent;
    -webkit-tap-highlight-color: transparent;
    opacity: 0;
}
.link-1 {
    top: 29%;
    left: 5%;
    height: 0.35rem;
    width: 1rem;
}
.link-2 {
    top: 58%;
    left: 5%;
    height: 0.35rem;
    width: 2rem;
}
.link-3 {
    top: 90%;
    left: 5%;
    height: 0.35rem;
    width: 1rem;
}
.link-4 {
    top: 73%;
    left: 5%;
    height: 0.45rem;
    width: 1.5rem;
}
.link-5 {
    top: 89%;
    left: 28%;
    height: 0.45rem;
    width: 1.7rem;
}
.link-6 {
    top: 32%;
    left: 28%;
    height: 0.45rem;
    width: 1.7rem;
}
.link-7 {
    top: 61%;
    left: 28%;
    height: 0.45rem;
    width: 1.7rem;
}
.link-8 {
    top: 91%;
    left: 28%;
    height: 0.45rem;
    width: 1.7rem;
}