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

header {
    background-color: #333;
    color: white;
    padding: 10px 0;
    text-align: center;
}

.navbar {
    display: flex;
    justify-content: center;
    padding: 10px 0;
}

.navbar a {
    color: white;
    text-decoration: none;
    margin: 0 10px;
    padding: 10px;
}

.navbar a:hover {
    background-color: #575757;
    border-radius: 5px;
}

main {
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.report-image {
    margin-bottom: 20px;
    max-width: 100%;
    border-radius: 15px;
    overflow: hidden; /* 确保圆角应用到图片 */
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.report-image img {
    width: 100%;
    height: auto;
    border-radius: 15px; /* 应用圆角到图片 */
}

footer {
    background-color: #333;
    color: white;
    position: fixed;
    bottom: 0;
    width: 100%;
}

footer .navbar {
    justify-content: space-around;
}