/* 全局样式 */

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f8f8f8;
    color: #333;
}

a {
    color: #007bff;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

header {
    background-color: #007bff;
    color: #fff;
    padding: 1rem;
    display: flex; /* 添加 flex 属性 */
    align-items: center; /* 居中对齐内容 */
    justify-content: space-between;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex; /* 添加 flex 属性 */
    align-items: center; /* 居中对齐菜单项 */
}

nav ul li {
    display: inline-block;
    margin-right: 1rem;
}

nav ul li a {
    color: #fff;
    padding: 0.5rem 1rem;
}

main {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

.site-footer {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 2rem 0;
    font-size: 0.9rem;
    width: 100%;
    overflow: hidden;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    padding: 0.75rem;
    align-items: flex-start;
    gap: 0.75rem;
}

.footer-brand {
    flex: 0 1 25%;
    min-width: 200px;
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    color: #bdc3c7;
}

.footer-logo {
    width: 80px;
    height: auto;
    align-self: flex-start;
    margin-bottom: 0.5rem;
}

.footer-description {
    flex: 1;
    color: #bdc3c7;
    font-size: 0.9rem;
    line-height: 1.6;
}

.footer-links {
    flex: 0 1 20%;
    min-width: 160px;
    padding: 0.75rem;
}

.footer-links h3 {
    color: #3498db;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

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

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: #bdc3c7;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #3498db;
    text-decoration: none;
}

.footer-contact {
    flex: 0 1 20%;
    min-width: 160px;
    padding: 0.75rem;
}

.footer-contact h3 {
    color: #3498db;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-contact a {
    color: #bdc3c7;
    transition: color 0.3s;
}

.footer-contact a:hover {
    color: #3498db;
    text-decoration: none;
}

.footer-copyright {
    width: 100%;
    text-align: center;
    padding: 1rem;
    background-color: #007bff;
    color: #fff;
    font-size: 0.8rem;
    box-sizing: border-box;
    position: relative;
    left: 0;
    right: 0;
}

@media (max-width: 768px) {
    .footer-container {
        flex-direction: column;
        padding: 0.75rem;
        gap: 0.5rem;
    }
    
    .footer-brand, .footer-links, .footer-contact {
        width: 100%;
        padding: 0.75rem;
        margin-bottom: 0;
    }
}

/* 首页样式 */

main h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

main p {
    font-size: 1.2rem;
    line-height: 1.8;
}

main a.button {
    display: inline-block;
    background-color: #007bff;
    color: #fff;
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
    margin-top: 1rem;
    text-decoration: none;
    text-align: center;
    transition: background-color 0.3s ease;
}

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

/* 新添加的样式 */
.logo img {
    height: 40px; /* 调整Logo图片的高度 */
    margin-right: 10px; /* 调整Logo图片和菜单栏之间的间距 */
}

/* 在已有的CSS样式基础上添加以下代码 */
.logo img {
    height: 40px; /* 调整Logo图片的高度 */
}

.intro-container {
    display: flex;
    align-items: center;
    margin-top: 20px; /* 调整图片和文字介绍之间的间距 */
}

.intro-img {
    flex: 1;
    text-align: center;
}

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

.intro-text {
    flex: 2;
    padding-left: 20px; /* 调整文字介绍与图片之间的间距 */
}