* {
    padding: 0;
    margin: 0;
}

body {
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.header {
    flex: 1;
    width: 100%;
    overflow: hidden;
    margin: 0 auto;
    display: flex;
    flex-direction: column;

}

.header .background{
    position: absolute;
    left: 50%;
    width: 100%;
    transform: translate(-50%,0);
    height: 60vh;
    background-image: linear-gradient(150deg, #5d009a, #2b0193);
    z-index: -1;
    border-bottom-left-radius: 100%;
    border-bottom-right-radius: 100%;
}

.download-tips {
    max-width: 1440px;
    margin: 0.3rem auto;
    font-size: 0.4rem;
    color: white;
}

.header .nav {
    width: 100%;
    max-width: 1440px;
    padding:0.2rem;
    box-sizing: border-box;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    color: white;
    margin: 0 auto;
}

.header .nav .logo {
    display: flex;
    flex-direction: row;
    align-items: center;
}

.header .nav .logo img {
    height: 0.6rem;
    margin-right: 0.2rem;
}

.header .nav .logo span {
    font-size: 0.25rem;
}

.header .nav .menu {
    display: flex;
    flex-direction: row;
    align-items: center;
    font-size: 0.18rem;
}

.header .nav .menu a {
    color: white;
    text-decoration: none;
}

.header .nav .menu > div {
    margin-left: 0.3rem;
}

.header .content {
    flex: 1;
    width: 100%;
    max-width: 1440px;
    display: flex;
    flex-direction: column;
    margin: 0 auto;
}

.header .content .text {
    flex: 1;
    color: white;
    display: flex;
    flex-direction: column;
}

.header .content .text .text-1{
    font-size: 0.3rem;
}
.header .content .text .text-2{
    margin: 0.2rem 0;
    flex: 1;
}
.header .content .text .text-3{
    font-size:0.2rem;
    margin-bottom: 1vw;
}
.header .content .text .text-4{
    font-size: 0.2rem;
    color: rgba(255,255,255,0.8);
}

.download-container {
    margin: 0 auto;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
}

.platform {
    display: flex;
    flex-direction: row;
    padding: 0.2em;
    justify-content: center;
}

.platform .platform-item {
    text-align: center;
    border-radius: 5px;
    padding: 0.1rem;
}

.platform .platform-item .icon {
    height: 0.4rem;
    margin-bottom: 0.1rem;
}

.platform .platform-item .icon img{
    height: 100%;
    vertical-align: top;
}

.platform .platform-item .name{
    font-size: 0.16rem;
    color: black;
}

.application-detail {
    margin: 0.5rem auto auto;
}

.platform a{
    text-decoration: none;
}

.detail-container {
    flex: 1;
    width: 100%;
    max-width: 1440px;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
}

.detail-container .item {
    flex: 1;
    max-width: 2.3rem;
    padding:0.2rem;
    margin: 0 0.2rem;
    box-sizing: border-box;
    text-align: center;
    background-color: white;
    border-radius: 15px;
    box-shadow: rgba(17, 12, 46, 0.15) 0px 48px 100px 0px;
}

.detail-container .item .pic {
    height: 0.8rem;
}

.detail-container .item .pic img {
    height: 100%;
    vertical-align: top;
}

.detail-container .item .title {
    font-size: 0.25rem;
    margin: 0.2rem auto;
}

.detail-container .item .text {
    font-size: 0.16rem;
    color: rgba(0,0,0,0.5);
}

.qr-code {
    width: 100px;
    height: 100px;
    border-radius: 5px;
    background: #fff;
    padding: 10px;
}

.qr-code canvas {
    width: 100%;
}

.footer {
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0.2rem;
    box-sizing: border-box;
    text-align: center;
    display: flex;
    justify-content: space-between;
    flex-direction: row;
    align-items: center;
    border-top: 1px solid #e7e7e9;
    font-size: 0.16rem;
}

@media screen and (max-width: 750px){
    body {
        min-height: 100vh;
        height: auto;
        overflow-y: scroll;
    }
    .header .background {
        height: 75vh;
    }
    .platform .platform-item .icon {
        height: 0.55rem;
    }
    .application-detail {
        margin: 0 auto;
    }
    .header .nav .logo span {
        font-size: 0.33rem;
    }
    .detail-container .item .pic {
        height: 1.3rem;
    }
    .detail-container .item {
        flex-grow: 1;
        max-width: none;
        border-radius: 5px;
        margin: 0 0.1rem 0.2rem;
    }

    .detail-container {
        padding: 0.1rem;
        box-sizing: border-box;
        display: grid;
        grid-template-columns: auto auto;
    }

    .detail-container .item .text {
        font-size: 0.25rem;
    }

    .detail-container .item .title {
        font-size: 0.33rem;
    }

    .platform .platform-item .name {
        font-size: 0.25rem;
    }

    .header .nav .menu {
        font-size: 0.3rem;
    }
    .header .nav .logo img {
        height: 0.8rem;
    }

    .qr-code {
        display: none;
    }

    .footer {
        font-size: 0.3rem;
        flex-direction: column-reverse;
    }
}