body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

.container {
    display: flex;
    width: 80%;
    margin: auto;
    overflow: hidden;
}

.sidebar {
    flex: 1;
    background: #ffb444;
    color: #0a0a0a;
    padding: 20px;
}

.sidebar h2 {
    margin-top: 0;
}

.sidebar ul {
    list-style: none;
    padding: 0;
}

.sidebar li a {
    color: #0a0a0a;
    text-decoration: none;
    display: block;
    padding: 10px;
    border-bottom: 1px solid #444;
}

.sidebar li a:hover {
    background: #ffc876;
}

.content {
    flex: 3;
    background: #fff;
    padding: 20px;
    margin-left: 20px;
}

img {
    max-width: 100%;
    height: auto;
}

footer {
    margin-top: 20px;
    background: #ffa41b;
    color: #0a0a0a;
    text-align: center;
    padding: 10px 0;
    width: 100%;
}

footer p {
    margin: 0;
}

.card-list {
    /* grid */
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    grid-gap: 20px;

}

.card {
    background: #fff;
    border: 1px solid #ccc;
    border-radius: 5px;
    padding: 20px;
    cursor: pointer;
}

.card p {
    /* 省略文字 */
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
}

.card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}