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

header {
    display: flex;
    align-items: center;
    /*justify-content: space-between;*/
    background: white;
    color: #333;
    padding: 20px;
}

.header-content {
    display: flex;
    align-items: center;
    margin: 0 auto; /* 居中对齐整个 header 内容 */
}

.icon {
    margin-right: 15px; /* 图标与标题之间的间距 */
}

.icon img {
    width: 86px;  /* 图标的大小 */
    height: 86px; /* 图标的高度，这样与标题的高度一致 */
    border-radius: 15px;
}

.title-and-subtitle {
    display: flex;
    flex-direction: column; /* 标题和副标题纵向排列 */
    justify-content: center; /* 垂直居中对齐 */
}

.title-and-subtitle h1 {
    margin: 0; /* 去掉标题的默认外边距 */
}

.title-and-subtitle p {
    margin: 10px 0 0 0; /* 上边距为5px，去掉其他外边距 */
}

.download-buttons {
    margin-left: auto; /* 将下载按钮推到右侧 */
}

.download-button {
    background-color: #4CAF50;
    color: white;
    padding: 10px 15px;
    text-decoration: none;
    border-radius: 5px;
    margin-left: 10px; /* 按钮之间的间距 */
}

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
    padding: 20px;
}

h2 {
    color: #333;
}

.app-preview {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.preview-image {
    flex: 1;
    margin: 10px;
    max-width: 300px;
}

.preview-image img {
    width: 100%;
    border-radius: 8px;
}


.link {
    color: #333; /* 链接颜色 */
    text-decoration: none; /* 去掉下划线 */
}

.link:hover {
    text-decoration: underline; /* 悬停时显示下划线 */
}

footer {
    text-align: center;
    padding: 20px;
    background: white;
    color: #333;
}