/* 极简暗黑主题 - 科技蓝风格 */
:root {
    --bg-dark: #0a0a12;
    --bg-darker: #050509;
    --text-primary: #e0e0ff;
    --text-secondary: #a0a0c0;
    --accent-blue: #3a86ff;
    --accent-light: #4cc9f0;
    --border-dark: #1e1e2e;
    --card-bg: #12121a;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    text-decoration: none;
    color: var(--accent-blue);
    transition: all 0.2s ease-out;
}

a:hover {
    color: var(--accent-light);
    text-decoration: underline;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* 极简头部 */
.header {
    background-color: var(--bg-darker);
    border-bottom: 1px solid var(--border-dark);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.nav-link:hover {
    color: var(--text-primary);
    text-decoration: none;
}

/* 主要内容区 */
.main {
    flex: 1;
    padding: 3rem 0;
}

.section-title {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 3rem;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-blue), transparent);
}

/* 网格布局 */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

/* 卡片设计 */
.card {
    background-color: var(--card-bg);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-dark);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

.card-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-bottom: 1px solid var(--border-dark);
}

.card-body {
    padding: 1.5rem;
}

.card-title {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 1rem;
}

/* 文章详情页 */
.article-container {
    max-width: 800px;
    margin: 0 auto;
}

.article-header {
    margin-bottom: 2.5rem;
}

.article-title {
    font-size: 2rem;
    line-height: 1.3;
    margin-bottom: 1rem;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.article-img {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.article-content {
    line-height: 1.7;
}

.article-content p {
    margin-bottom: 1.5rem;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 3rem;
}

.pagination-link {
    padding: 0.5rem 1.25rem;
    border-radius: 6px;
    background-color: var(--card-bg);
    border: 1px solid var(--border-dark);
    font-size: 0.9rem;
}

.pagination-link:hover {
    background-color: var(--accent-blue);
    color: white;
    text-decoration: none;
}

/* 友情链接 */
.links-section {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 2rem;
    margin: 3rem 0;
    border: 1px solid var(--border-dark);
}

.links-title {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

.links-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.link-item {
    padding: 0.5rem 1rem;
    background-color: var(--bg-dark);
    border-radius: 6px;
    font-size: 0.85rem;
    border: 1px solid var(--border-dark);
}

.link-item:hover {
    background-color: var(--accent-blue);
    color: white;
}

/* 页脚 */
.footer {
    background-color: var(--bg-darker);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border-dark);
}

.copyright {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0 1.25rem;
    }
    
    .header-container {
        flex-direction: column;
        gap: 1.25rem;
    }
    
    .nav-menu {
        gap: 1.25rem;
    }
    
    .grid-container {
        grid-template-columns: 1fr;
    }
    
    .article-title {
        font-size: 1.75rem;
    }
}