body{  
background: linear-gradient(135deg,#f5f7fa 0%, #c3cfe2 100%);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif
        line-height 1.6em;
        margin: 0;
        min-height: 100vh;
        padding: 20px;}
.content-card{
    max-width: 800px;
    width: 100%;
    background-color: white;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    padding: 40px;
    margin: 20px auto;
    transition: transform 0.3s ease;}
.content-card:hover{
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15)}
h1{
    color: #333;
    font-size: 2.5em;
    margin-bottom: 0;
    border-left: 5px solid #ff6b6b;
    padding-left: 20px;}
h2{
    color: #666;
    font-size: 1.8em;
    font-weight: 300;
    margin-top: 10px;
    margin-bottom: 30px;}
h2::after {
    content: "";
    display: block;
    width: 60px;
    height: 3px;
    background: #ff6b6b;
    margin-top: 10px;
}
p{
    color: #555;
    font-size: 1.1em;
    margin: 20px 0;
}
a{
    display: inline-block;
    background-color: #ff6b6b;
    color: white;
    text-decoration: none;
    padding: 12px 14px;
    border-radius: 50px;
    margin: 10px 10px 10px 0;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(255, 107, 107, 0.2);
}
a:hover{
    background-color: #ff5252;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(255, 107, 107, 0.3);
}
a[herf*="bilibili"]:hover{
    background-color: #0088b3;
}
img{
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    display: block;
    margin: 30px 0;
    transition: transform 0.3s ease;
}
@media(max-width:600px){
    .content-card{
        padding: 20px;
    }
    h1{
        font-size: 2em;
    }
    h2{
        font-size: 1.5em;
    }
    a{
        display: block;
        text-align: center;
        margin: 10px 0;
    }
}