body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    color: #333;
    background-color: #f2f7fd;
    font-size: 1.2em; /* Increased base font size */
}
.container {
    width: 100%;
    min-height: 100vh;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background-color: #f2f7fd;
}
.header, .section, .footer {
    text-align: center;
    padding: 0 20px;
    flex-shrink: 0;
}
.header {
    margin-bottom: 20px; /* Adjusted margin bottom for header */
}
.header img {
    width: 100%;
    max-width: 250px;
    margin-bottom: 10px;
}
.header h1 {
    font-size: 2.5em; /* Increased font size */
}
.header p {
    font-size: 1.5em; /* Increased font size */
    margin-bottom: 0; /* Adjusted to remove extra bottom margin */
}
.section {
    margin-top: 0; /* Removed top margin for sections */
    margin-bottom: 20px; /* Added bottom margin for sections */
}
.section img {
    width: 100%;
    max-width: 1920px;
    height: auto;
    border-radius: 10px;
    margin-bottom: 20px;
}
.section p {
    font-size: 1.3em; /* Increased font size */
    line-height: 1.8em;
    margin: 0 10%;
}
.section h2 {
    color: #0056b3;
    margin-bottom: 20px;
    font-size: 2em; /* Increased font size */
}
.footer {
    background-color: #333;
    color: #fff;
    padding: 20px;
    border-radius: 0 0 10px 10px;
    margin: 20px 0 0 0; /* Adjusted top margin for spacing */
    font-size: 1.2em; /* Increased font size */
    text-align: center; /* Center-aligning the content */
}
.footer p {
    margin: 5px 0;
}
.footer .download-link {
    color: #0056b3; /* Blue color for download link */
    text-decoration: none;
    font-weight: bold;
    margin-right: 10px; /* Reduced right margin */
}
.footer .download-link:hover {
    text-decoration: underline;
}
.footer-nav {
    list-style: none;
    padding: 0; /* 移除顶部 padding */
    margin: 0; /* 移除顶部 margin */
}
.footer-nav li {
    display: inline-block;
    margin-right: 10px; /* 调整链接之间的右侧间距 */
}

.footer-nav li a {
    color: #fff;
    text-decoration: none;
    margin: 10 10px; /* Added spacing between links */
}
.footer-nav li a:hover {
    text-decoration: underline;
}