/* 全局基础设置 */
body {
    font-family: "Noto Sans SC", Georgia, "Times New Roman", serif;
    line-height: 1.75;
    color: #333;
    background-color: #f8f9fa;
    margin: 0;
    padding: 0;
}

/* 页面容器宽度与居中 */
.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* 站点标题与描述 */
.site-title {
    color: #2c5aa0;
    font-size: 2.5rem;
    font-weight: 600;
    text-align: center;
    margin: 1.5rem 0 0.5rem;
}
.site-desc {
    color: #666;
    font-size: 1rem;
    text-align: center;
    margin-bottom: 2rem;
}

/* 导航栏 */
.nav {
    border-bottom: 1px solid #e9ecef;
    margin-bottom: 2rem;
}
.nav a {
    color: #2c5aa0;
    text-decoration: none;
    padding: 0.5rem 1rem;
    display: inline-block;
}
.nav a:hover {
    background-color: #e9ecef;
}

/* 文章列表与内容 */
.post {
    background: white;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
.post-title {
    color: #2c5aa0;
    font-size: 1.5rem;
    margin-top: 0;
}
.post-meta {
    color: #666;
    font-size: 0.9em;
    margin-bottom: 1rem;
}
.post-content {
    color: #333;
}

/* 链接样式 */
a {
    color: #2c5aa0;
    text-decoration: none;
    border-bottom: 1px solid #cce0f5;
}
a:hover {
    border-bottom-color: #2c5aa0;
}

/* PDF 链接加图标 */
a[href$=".pdf"]::before {
    content: "📄 ";
}

/* 侧边栏 */
.sidebar {
    background: white;
    padding: 1.5rem;
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
.sidebar h3 {
    color: #2c5aa0;
    border-bottom: 2px solid #e9ecef;
    padding-bottom: 0.5rem;
}

/* 页脚 */
footer {
    text-align: center;
    color: #666;
    padding: 2rem 0;
    border-top: 1px solid #e9ecef;
}