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

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #F9FAFB;
}

/* 容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏样式 */
.main-nav {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: #3B82F6;
}

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

.nav-links a {
    text-decoration: none;
    color: #64748B;
    font-weight: 500;
    transition: color 0.3s ease;
    font-size: 0.95rem;
}

.nav-links a:hover,
.nav-links a.active {
    color: #3B82F6;
}

/* 主要内容区域样式 */
main {
    margin-top: 4rem;
    padding-top: 2rem;
}

/* 简介部分样式 */
.intro-section {
    padding: 4rem 0;
    background-color: #fff;
    text-align: center;
}

.portfolio-header {
    margin-bottom: 2rem;
}

.portfolio-tag {
    display: inline-block;
    padding: 0.35rem 1.2rem;
    background-color: #EBF5FF;
    color: #3B82F6;
    border-radius: 20px;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.portfolio-header h1 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.intro-content {
    max-width: 800px;
    margin: 0 auto;
}

.intro-content p {
    color: #64748B;
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

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

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #F1F5F9;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.social-link:hover {
    background-color: #E2E8F0;
    transform: translateY(-2px);
}

.social-link img {
    width: 20px;
    height: 20px;
    opacity: 0.7;
}

/* 最新作品样式 */
.latest-works {
    padding: 4rem 0;
    background-color: #F9FAFB;
}

.latest-works h2 {
    text-align: center;
    color: #2c3e50;
    font-size: 2rem;
    margin-bottom: 1rem;
}

.section-desc {
    text-align: center;
    color: #64748B;
    margin-bottom: 3rem;
}

.works-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.work-item {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.work-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.work-image {
    width: 100%;
    height: 200px;
    background-size: cover;
    background-position: center;
}

.work-details {
    padding: 1.5rem;
}

.work-details h3 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.work-details p {
    color: #64748B;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.work-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    background-color: #F1F5F9;
    color: #64748B;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
}

/* 最新博客样式 */
.latest-blogs {
    padding: 4rem 0;
    background-color: #fff;
}

.latest-blogs h2 {
    text-align: center;
    color: #2c3e50;
    font-size: 2rem;
    margin-bottom: 3rem;
}

.blog-preview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.blog-card {
    background: #F9FAFB;
    padding: 2rem;
    border-radius: 12px;
    transition: transform 0.3s ease;
}

.blog-card:hover {
    transform: translateY(-4px);
}

.blog-card h3 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.blog-meta {
    color: #94A3B8;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.blog-excerpt {
    color: #64748B;
    font-size: 0.95rem;
}

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

/* 响应式布局 */
@media (max-width: 768px) {
    .main-nav {
        padding: 1rem;
    }

    .nav-links {
        gap: 1rem;
    }

    .container {
        padding: 0 1rem;
    }

    .portfolio-header h1 {
        font-size: 2rem;
    }

    .intro-content p {
        font-size: 1rem;
    }

    .works-grid,
    .blog-preview {
        grid-template-columns: 1fr;
    }
}