:root {
    --text-primary: #1a1a1a;
    --text-secondary: #4a5568;
    --border-color: #e2e8f0;
    --bg-gray: #f8f9fa;
    --primary: #667eea;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-primary);
    background: white;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.blog-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 1rem 0;
}

.blog-nav-inner {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.blog-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.125rem;
}

.blog-logo img {
    width: 32px;
    height: 32px;
}

.blog-back {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s;
}

.blog-back:hover {
    color: var(--primary);
}

.blog-article {
    max-width: 800px;
    margin: 0 auto;
    padding: 6rem 2rem 4rem;
}

.blog-header {
    margin-bottom: 3rem;
}

.blog-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.blog-category {
    color: var(--primary);
    font-weight: 600;
}

.blog-dot {
    opacity: 0.5;
}

.blog-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.blog-lead {
    font-size: 1.25rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

.blog-image {
    margin-bottom: 3rem;
    border-radius: 12px;
    overflow: hidden;
}

.blog-image img {
    width: 100%;
    height: auto;
    display: block;
}

.blog-image-caption {
    margin-top: 0.75rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-align: center;
    font-style: italic;
}

.blog-content {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-primary);
}

.blog-content h2 {
    font-size: 1.875rem;
    font-weight: 700;
    line-height: 1.3;
    margin: 3rem 0 1.5rem;
    color: var(--text-primary);
}

.blog-content h2:first-child {
    margin-top: 0;
}

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

.blog-content strong {
    font-weight: 600;
    color: var(--text-primary);
}

.blog-content a {
    color: var(--primary);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}

.blog-content a:hover {
    border-bottom-color: var(--primary);
}

.blog-content ul {
    margin: 1.5rem 0;
    padding-left: 1.5rem;
}

.blog-content ul li {
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.blog-content blockquote {
    margin: 2.5rem 0;
    padding: 1.5rem 2rem;
    border-left: 4px solid var(--primary);
    background: var(--bg-gray);
    border-radius: 0 8px 8px 0;
    font-size: 1.25rem;
    font-weight: 500;
    font-style: italic;
    line-height: 1.6;
    color: var(--text-primary);
}

.blog-content hr {
    margin: 3rem 0;
    border: none;
    border-top: 1px solid var(--border-color);
}

.blog-footer {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.blog-footer-team {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.footer-team-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.125rem;
}

.footer-team-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.footer-team-location {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.blog-bottom-nav {
    background: var(--bg-gray);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
}

.blog-bottom-nav-inner {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.blog-bottom-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s;
}

.blog-bottom-link:hover {
    color: var(--primary);
}

.blog-bottom-cta {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: var(--primary);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.blog-bottom-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

@media (max-width: 768px) {
    .blog-article {
        padding: 5rem 1.5rem 3rem;
    }
    
    .blog-nav-inner {
        padding: 0 1.5rem;
    }
    
    .blog-title {
        font-size: 1.75rem;
    }
    
    .blog-lead {
        font-size: 1.125rem;
    }
    
    .blog-content {
        font-size: 1rem;
    }
    
    .blog-content h2 {
        font-size: 1.5rem;
        margin: 2.5rem 0 1.25rem;
    }
    
    .blog-content blockquote {
        font-size: 1.125rem;
        padding: 1.25rem 1.5rem;
        margin: 2rem 0;
    }
    
    .blog-bottom-nav-inner {
        flex-direction: column;
        text-align: center;
        padding: 0 1.5rem;
    }
    
    .blog-bottom-cta {
        width: 100%;
    }
}