#canvas{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;  /* 确保它在最底层 */
}

.backgroundplus{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.3);
    z-index: -1;
}

.body{
    height: 100vh;
    background-color: rgba(255, 255, 255, 1);
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

.selecter-container{
    width: 25vw;
    height: 40vh;
    border-radius: 4mm;
    backdrop-filter: blur(3px);
    background-color: rgba(255, 255, 255, 0.3);
    padding: 5mm;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.navi-title{
    text-align: center;
    margin-top: 10%;
    margin-bottom: 8%;
    font-size: 16pt;
    font-weight: 500;
}

.target-box{
    text-align: center;
    width: 20vw;
    margin: auto;
    padding: 2vw;
    padding-top: 3vh;
    padding-bottom: 3vh;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 3mm;
    color: black;
    text-decoration: none;
}

@media (max-width: 1020px){
    .selecter-container{
        width: 80vw;
        height: 70vh;
        border-radius: 15mm;
    }
    .navi-title{
        font-size: 40pt;
    }
    .target-box{
        width: 70vw;
        padding-top: 5vh;
        padding-bottom: 5vh;
        border-radius: 10mm;
        font-size: 30pt;
    }
}