/* 全局重置与基础设置 */
* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    font-size: 16px;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
}

/* 链接样式 */
a {
    color: #2a7ae2;
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: #111;
    text-decoration: underline;
}

/* 布局容器 */
.wrapper {
    max-width: 800px;
    margin-right: auto;
    margin-left: auto;
    padding-right: 30px;
    padding-left: 30px;
}

/* 顶部导航 Header */
.site-header {
    border-top: 5px solid #424242; /* 顶部那条标志性的黑线 */
    border-bottom: 1px solid #e8e8e8;
    min-height: 56px;
    position: relative;
    padding: 15px 0;
    margin-bottom: 30px;
}

.site-title {
    font-size: 24px;
    font-weight: bold;
    letter-spacing: -1px;
    color: #424242;
    float: left;
    line-height: 56px;
}

.site-title:hover {
    text-decoration: none;
}

.site-nav {
    float: right;
    line-height: 56px;
}

.site-nav a {
    color: #424242;
    margin-left: 20px;
    font-size: 16px;
}

/* 响应式：手机端导航调整 */
@media screen and (max-width: 600px) {
    .site-nav {
        float: none;
        margin-top: 10px;
        display: block;
        line-height: 1.5;
    }
    .site-nav a {
        margin-left: 0;
        margin-right: 15px;
        display: inline-block;
    }
    .site-title {
        float: none;
        display: block;
    }
}

/* 页面内容 */
.page-content {
    padding: 30px 0;
    flex: 1;
}

.page-heading {
    font-size: 28px;
    margin-bottom: 20px;
    color: #111;
}

/* 文章列表样式 */
.post-list {
    margin-left: 0;
    list-style: none;
    padding: 0;
}

.post-list > li {
    margin-bottom: 40px;
}

.post-meta {
    font-size: 14px;
    color: #828282;
    margin-bottom: 5px;
    display: block;
}

.post-link {
    display: block;
    font-size: 22px;
    font-weight: 500;
    color: #111;
    margin-bottom: 10px;
}

.post-excerpt {
    color: #666;
    font-size: 15px;
}

/* 单篇文章详情页样式 */
.post-header {
    margin-bottom: 30px;
}

.post-title {
    font-size: 36px;
    letter-spacing: -1px;
    line-height: 1.2;
    margin-bottom: 5px;
}

.post-content {
    margin-bottom: 30px;
}

.post-content h2 {
    font-size: 24px;
    margin-top: 40px;
    margin-bottom: 20px;
}

.post-content p {
    margin-bottom: 20px;
}

.post-content blockquote {
    color: #828282;
    border-left: 4px solid #e8e8e8;
    padding-left: 20px;
    font-size: 18px;
    font-style: italic;
    margin: 20px 0;
}

/* 底部 Footer */
.site-footer {
    border-top: 1px solid #e8e8e8;
    padding: 30px 0;
    color: #828282;
    font-size: 14px;
    margin-top: 50px;
}

.footer-links {
    margin-top: 10px;
}

.footer-links a {
    color: #828282;
    margin-right: 15px;
}