body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    margin: 0;
    background-color: #f4f7f6;
    color: #333;
    line-height: 1.6;
}


/* Navbar Styles */
.navbar {
    width: 100%;
    background-color: #e0f2fe; /* 浅蓝色，类似截图 */
    padding: 10px 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.nav-container {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.nav-brand {
    font-size: 1.5em;
    font-weight: bold;
    color: #0284c7; /* 深一点的蓝 */
    text-decoration: none;
}
.nav-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
}
.nav-links li {
    margin-left: 20px;
}
.nav-links a {
    text-decoration: none;
    color: #0369a1;
    font-weight: 500;
}
.nav-links a.active, .nav-links a:hover {
    color: #0ea5e9; /* 激活或悬停颜色 */
    border-bottom: 2px solid #0ea5e9;
}
.nav-search input[type="text"] {
    padding: 8px;
    border: 1px solid #cbd5e1;
    border-radius: 4px;
}
.nav-search button {
    padding: 8px 12px;
    background-color: #0ea5e9;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin-left: 5px;
}
.nav-search button:hover {
    background-color: #0284c7;
}