* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    /* background-color: #f5f5f5; */
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0;
    padding: 0;
    overflow: hidden; /* 防止出现滚动条 */
}

.container {
    width: 100vw;
    height: 100vh;
    padding: 0;
    position: relative;
}

.download-image {
    width: 100%;
    height: 100%;
    object-fit: cover; /* 保持图片比例并填充整个容器 */
    margin: 0;
    border-radius: 0;
}

.download-button {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    padding: 12px 24px;
    background-color: #007bff;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: background-color 0.3s;
}

.download-button:hover {
    background-color: #0056b3;
}