*{
    padding: 0;
    margin: 0;
}

header{
    background:linear-gradient(to right,#ff99cc,#00CCff);
    height: 60px;
    width: 100%;
    box-shadow: 0 10px 5px #f0f0f0;
}

header h1{
    position: absolute;
    left: 5vw;
    top: 0;
    line-height: 60px;
    color: white;
}

.主页{
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 85vw;
    margin: 25px auto;
    padding: 20px;
    border-radius: 15px;
    text-shadow:2px 2px 2px rgba(0, 0, 0, 0.1);;
    box-shadow: 3px 3px 5px rgba(0, 0, 0, 0.1),
    -3px 0px 5px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.主页 h1{
    font-size: 80px;
}

.主页 h2{
    font-size: 45px;
}

.主页 a{
    text-decoration: none;
}

.button a{
    display: inline-block;
    margin: 10px;
    border-radius: 15px;
    text-shadow:2px 2px 2px rgba(0, 0, 0, 0.1);;
    font-size: 30px;
    text-align: center;
    transition: 
        transform 0.25s cubic-bezier(.22,1,.36,1),
        box-shadow 0.25s cubic-bezier(.22,1,.36,1),
        filter 0.25s cubic-bezier(.22,1,.36,1);
}

.button a:hover {
    transform: translateY(-10px) scale(1.04) ;
    box-shadow: 0 16px 32px rgba(0,0,0,0.22), 0 2px 8px rgba(255,153,204,0.08);
    filter: brightness(1.07) saturate(1.2);
    text-decoration: none;
    z-index: 2;
}

.button a:active {
    transform: scale(0.96) translateY(2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.12);
    filter: brightness(0.98);
}