/* 页面整体 */
body {
    background-color: antiquewhite;
    font-family: Arial, sans-serif;
    font-size: 18px;          
    line-height: 1.6;        
    margin: 0;
    padding: 20px;
}


h1 {
    font-size: 32px;
    margin-bottom: 5px;
    animation: fadeIn 1s ease-in-out; 
}

h2 {
    font-size: 22px;
    margin-bottom: 5px;
}

h3 {
    font-size: 18px;
    color: #555;
    margin-bottom: 15px;
}


dt {
    font-weight: bold;
    font-size: 20px;
    margin-top: 15px;
}


li {
    margin: 6px 0;
}

a {
    color: #333;
    text-decoration: none;
    transition: all 0.3s ease;   
}

a:hover {
    color: #d62828;             
    transform: translateX(5px);  
    background-color: rgba(255, 0, 0, 0.08); 
    padding: 2px 4px;
    border-radius: 4px;
}

div {
    margin: auto;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}