/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Microsoft YaHei", Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    background-color: #f9f9f9;
    color: #333;
    padding: 20px;
}

header {
    text-align: center;
    padding: 20px 0;
    margin-bottom: 30px;
    border-bottom: 1px solid #ddd;
}

header h1 {
    font-size: 32px;
    margin-bottom: 10px;
}

header a {
    color: #0066cc;
    text-decoration: none;
}

#nav-container {
    max-width: 1200px;
    margin: 0 auto;
    overflow: hidden;
}

.loading {
    text-align: center;
    padding: 50px;
    color: #666;
    font-size: 16px;
}

.category-title {
    font-size: 22px;
    margin: 25px 0 15px;
    color: #222;
    padding-bottom: 8px;
    border-bottom: 2px solid #0066cc;
}

.link-list {
    margin-bottom: 30px;
    overflow: hidden;
}

.site-link {
    display: inline-block;
    width: 24%;
    min-width: 200px;
    background-color: white;
    padding: 15px;
    margin: 0 0.5% 15px;
    border-radius: 6px;
    text-decoration: none;
    color: #333;
    border: 1px solid #ddd;
    vertical-align: top;
}

.site-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    border-color: #0066cc;
}

.site-name {
    font-weight: bold;
    font-size: 16px;
    margin-bottom: 5px;
    color: #0066cc;
}

.site-desc {
    font-size: 13px;
    color: #666;
}

footer {
    text-align: center;
    margin-top: 40px;
    padding: 20px 0;
    font-size: 14px;
    color: #666;
    border-top: 1px solid #ddd;
}

footer a {
    color: #0066cc;
    text-decoration: none;
}