* {
    margin: 0;
    padding: 0;
}

body {
    /* 100%窗口高度 */
    height: 100vh;
    /* 弹性布局 水平+垂直居中 */
    display: flex;
    justify-content: center;
    align-items: center;
    /* 渐变背景 */
    background: linear-gradient(200deg, #517fa4, #243949);
}

.card {
    /* 相对定位 */
    position: relative;
    width: 300px;
    height: 450px;
    margin: 20px;
    background-color: #758a99;
    border-radius: 20px;
    /* 溢出隐藏 */
    overflow: hidden;
    /* 弹性布局 */
    display: flex;
    /* 元素纵向排列 */
    flex-direction: column;
    /* 居中 */
    align-items: center;
    color: #fff;
    /* 阴影 */
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.5);
    /* 不让其被挤压 */
    flex-shrink: 0;
}

.card .photo img {
    width: 100%;
    height: 100%;
    /* 保持原有尺寸比例，裁切长边 */
    object-fit: cover;
}

/* 默认大图 */
.card .photo {
    /* 绝对定位 */
    position: absolute;
    top: 0;
    width: 100%;
    height: 100%;
    border-radius: 0%;
    overflow: hidden;
    /* 动画过渡 */
    transition: 0.5s;
}

/* 鼠标移入变小图 */
.card:hover .photo {
    top: 30px;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.8);
}

/* 这里加个黑色到透明的渐变背景，可以更好的看清楚名字 */
.card .photo::before {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 50%, #222);
}

.card h1 {
    position: absolute;
    top: 370px;
    transition: 0.5s;
}

.card:hover h1 {
    top: 170px;
}

.card h2 {
    margin-top: 220px;
    width: 80%;
    border-bottom: 1px solid rgba(235, 23, 23, 0.3);
    font-size: 20px;
    text-align: center;
    margin-bottom: 20px;
    padding-bottom: 20px;
}

.card p {
    width: 90%;
    text-indent: 32px;
    font-size: 16px;
    margin-bottom: 15px;
    line-height: 30px;
}

.card a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    border: 1px solid rgba(247, 4, 4, 0.5);
    padding: 8px 32px;
    border-radius: 8px;
}

.card a:hover {
    color: #fff;
    background-color: rgba(255, 255, 255, 0.2);
}

    .back-to-home {
    display: inline-block;
    padding: 10px 20px;
    background-color: #40D3DC;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s;
    margin-left: 20px; /* 添加左边距 */
}

.back-to-home:hover {
    background-color: #35b6bf;
}

#codeRain {
    position: fixed;
    top: 0;
    left: 0;
    z-index: -1;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
}