*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: "PingFang SC", "Helvetica Neue", Arial, sans-serif;
}
html,body{
    /* height: 100%;
    width: 100%; */
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
}
a{
    text-decoration: unset;
}
.main{
    padding: 20px;
    background: white;
    margin: auto;
    max-width: 600px;
}
.title{
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: #2c3e50;
    padding: 12px 0;
    border-bottom: 1px solid #eee;
    font-weight: bold;
}
.title img{
    width: 60px;
    height: 60px;
    margin-right: 20px;
    box-shadow: 0 4px 10px rgba(110, 142, 251, 0.4);
    border-radius: 12px;
}
.banner{
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    height: 120px;
    border-radius: 12px;
    margin-top: 20px;
    box-shadow: 0 4px 10px rgba(110, 142, 251, 0.4);
}
.tips{
    color: #7f8c8d;
    font-size: 14px;
    text-align: center;
    margin: 20px 0;
}
.register-box{
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}
.register-box a{
    display: block;
    background: linear-gradient(135deg, #6e8efb, #a777e3);
    color: white;
    transition: all 0.3s ease;
    height: 46px;
    line-height: 46px;
    text-align: center;
    width: 48%;
    border-radius: 12px;
}
.register-box a:hover{
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
}
.app-box{
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
.app-item{
    width: 48%;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.06);
    border-radius: 12px;
    background: white;
    padding: 15px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
}
.app-item img{
    width: 40px;
    height: 40px;
    box-shadow: 0 4px 8px rgba(110, 142, 251, 0.3);
    border-radius: 10px;
    margin-right: 12px;
}
.app-text div:nth-child(1){
    font-size: 14px;
    color: #7f8c8d;
    margin-bottom: 10px;
}
.app-text div:nth-child(2){
    color: #2c3e50;
    font-size: 18px;
}
.download-title{
    color: #2c3e50;
    font-size: 18px;
    margin: 20px 0;
    text-align: center;
    font-weight: bold;
}
.download-box{
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.download-item{
    text-align: center;
    padding: 20px;
    width: 32%;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.06);
    border-radius: 12px;
    background: white;
}
.download-item img{
    width: 60px;
    height: 60px;
    box-shadow: 0 4px 8px rgba(110, 142, 251, 0.3);
    border-radius: 10px;
}
.download-text1{
    color: #2c3e50;
    font-size: 14px;
    margin: 12px 0 8px 0;
}
.download-text2{
    font-size: 13px;
    color: #7f8c8d;
}
.footer{
    font-size: 14px;
    color: #7f8c8d;
    text-align: center;
    margin: 50px 0 10px 0;
}

@media (min-width: 600px) {
    .main{
        border-radius: 20px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    }
    body{
        padding: 30px 0;
    }
    .register-box a{
        height: 56px;
        line-height: 56px;
    }
}