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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

a {
    text-decoration: none;
    color: #2c3e50;
}

/* 导航栏样式 */
.navbar {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 1rem 5%;
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand h1 {
    font-size: 1.8rem;
    color: #2c3e50;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
    background-color: #f0f0f0;
}

/* 主容器样式 */
.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

/* 特色文章样式 */
.featured-post {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

.featured-post img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.featured-content {
    padding: 2rem;
}

.featured-content h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

/* 文章卡片样式 */
.posts {
    display: grid;
    gap: 2rem;
}

.post-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.post-card:hover {
    transform: translateY(-5px);
}

.post-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.post-content {
    padding: 1.5rem;
}

.post-content h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
}

.post-meta {
    display: flex;
    gap: 1rem;
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.post-meta i {
    margin-right: 0.5rem;
}

.read-more {
    display: inline-block;
    margin-top: 1rem;
    color: #3498db;
    font-weight: 500;
}

.read-more:hover {
    text-decoration: underline;
}

/* 侧边栏样式 */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.widget {
    background: #fff;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.widget h3 {
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #f0f0f0;
}

.about-me {
    text-align: center;
}

.avatar {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin: 1rem auto;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    font-size: 1.5rem;
    color: #666;
    transition: color 0.3s;
}

.social-links a:hover {
    color: #3498db;
}

.categories ul {
    list-style: none;
}

.categories li {
    margin-bottom: 0.5rem;
}

.categories a {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.categories a:hover {
    background-color: #f0f0f0;
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    background: #f0f0f0;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
    transition: background-color 0.3s;
}

.tag:hover {
    background: #e0e0e0;
}

/* 页脚样式 */
.footer {
    background: #2c3e50;
    color: #fff;
    text-align: center;
    padding: 2rem;
    margin-top: 3rem;
}

.footer a {
    color: #fff;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
    }

    .nav-links {
        display: none;
    }

    .featured-post img {
        height: 300px;
    }
}