body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

header {
    background-color: #35a79c;
    color: #ffffff;
    text-align: center;
    padding: 1rem;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo img {
    width: 50px;
    margin-right: 10px;
}

nav {
    background-color: #333;
    color: #ffffff;
}

nav ul {
    padding: 0;
    list-style: none;
    display: flex;
    justify-content: center;
}

nav ul li {
    margin: 0 10px;
}

nav ul li a {
    color: #ffffff;
    text-decoration: none;
    padding: 10px;
}

main {
    padding: 20px;
    max-width: 800px;
    margin: 0 auto;
}

footer {
    background-color: #333;
    color: #ffffff;
    text-align: center;
    padding: 10px;
    position: fixed;
    bottom: 0;
    width: 100%;
}
/* 在现有样式的基础上添加 */

section {
    background-color: #ffffff;
    border-radius: 5px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

h2 {
    color: #35a79c;
    border-bottom: 2px solid #35a79c;
    padding-bottom: 10px;
}

h3 {
    color: #333;
}

ul {
    padding-left: 20px;
}

pre {
    background-color: #f4f4f4;
    padding: 10px;
    border-radius: 5px;
    overflow-x: auto;
}

.featured-topics ul {
    display: flex;
    justify-content: space-around;
    list-style-type: none;
    padding: 0;
}

.featured-topics li a {
    text-decoration: none;
    color: #35a79c;
    font-weight: bold;
}

.featured-topics li a:hover {
    text-decoration: underline;
}

footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px 0;
}

footer p {
    margin-bottom: 5px;
}

.icp {
    color: #ffffff;
    text-decoration: none;
    font-size: 0.8em;
}

.icp:hover {
    text-decoration: underline;
}
.logo {
    display: flex;
    align-items: center;
}

.logo svg {
    margin-right: 10px;
}

.logo h1 {
    margin: 0;
}