:root {
            --primary: rgb(59,130,246);
            --primary-dark: #2563eb;
            --primary-light: #eff6ff;
            --text-main: #111827;
            --text-muted: #6b7280;
            --bg-body: #f9fafb;
            --bg-surface: #ffffff;
            --border-color: #e5e7eb;
            --radius-lg: 12px;
            --radius-md: 8px;
            --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; background-color: var(--bg-body); color: var(--text-main); line-height: 1.6; -webkit-font-smoothing: antialiased; }
        a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
        ul { list-style: none; }
        img { max-width: 100%; height: auto; display: block; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        
        
        .header { background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 50; border-bottom: 1px solid var(--border-color); }
        .header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
        .logo { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
        .logo img { display: block; height: 36px; width: auto; max-width: 160px; object-fit: contain; flex-shrink: 0; }
        .logo span { display: inline-block; font-size: 20px; font-weight: 800; line-height: 1; color: var(--text-main); white-space: nowrap; }
        
        
        .desktop-nav { display: none; }
        .desktop-nav a { font-size: 15px; font-weight: 500; color: var(--text-muted); margin-left: 28px; }
        .desktop-nav a:hover { color: var(--primary); }
        .header-actions { display: none; }
        .btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 24px; font-size: 15px; font-weight: 600; border-radius: var(--radius-md); cursor: pointer; transition: all 0.3s; }
        .btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(59,130,246,0.3); }
        .btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }
        .btn-outline { border: 1px solid var(--border-color); color: var(--text-main); }
        .btn-outline:hover { border-color: var(--primary); color: var(--primary); }
        
        
        .menu-toggle { display: block; background: none; border: none; font-size: 24px; color: var(--text-main); cursor: pointer; }
        .drawer-mask { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 99; opacity: 0; visibility: hidden; transition: 0.3s; }
        .drawer-mask.active { opacity: 1; visibility: visible; }
        .drawer { position: fixed; top: 0; left: -300px; width: 280px; height: 100%; background: var(--bg-surface); z-index: 100; transition: 0.3s; display: flex; flex-direction: column; box-shadow: var(--shadow-lg); }
        .drawer.active { left: 0; }
        .drawer-header { padding: 20px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
        .drawer-close { background: none; border: none; font-size: 24px; color: var(--text-muted); cursor: pointer; }
        .drawer-nav { padding: 20px; overflow-y: auto; flex: 1; }
        .drawer-nav a { display: block; padding: 12px 0; font-size: 16px; font-weight: 500; border-bottom: 1px solid var(--bg-body); }
        
        
        .hero { padding: 80px 0; background: linear-gradient(135deg, var(--bg-surface) 0%, var(--primary-light) 100%); position: relative; overflow: hidden; }
        .hero-inner { display: grid; grid-template-columns: 1fr; gap: 48px; align-items: center; }
        .hero-content h1 { font-size: 40px; font-weight: 800; line-height: 1.2; margin-bottom: 20px; color: var(--text-main); letter-spacing: -1px; }
        .hero-content p { font-size: 18px; color: var(--text-muted); margin-bottom: 32px; max-width: 500px; }
        .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
        .hero-visual { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
        .hero-visual img { width: 100%; height: 100%; object-fit: cover; }
        
        
        .stats { padding: 40px 0; background: var(--bg-surface); border-bottom: 1px solid var(--border-color); }
        .stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; text-align: center; }
        .stat-item h3 { font-size: 32px; font-weight: 800; color: var(--primary); margin-bottom: 4px; }
        .stat-item p { font-size: 14px; color: var(--text-muted); }

        
        .section { padding: 80px 0; }
        .section-title { text-align: center; margin-bottom: 48px; }
        .section-title h2 { font-size: 32px; font-weight: 700; margin-bottom: 12px; }
        .section-title p { color: var(--text-muted); font-size: 16px; }
        .features-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
        .feature-card { background: var(--bg-surface); padding: 32px; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); transition: 0.3s; border: 1px solid transparent; }
        .feature-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: var(--primary-light); }
        .feature-icon { width: 56px; height: 56px; border-radius: 16px; background: var(--primary-light); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
        .feature-icon svg { width: 28px; height: 28px; fill: var(--primary); }
        .feature-card h3 { font-size: 20px; font-weight: 600; margin-bottom: 12px; }
        .feature-card p { color: var(--text-muted); font-size: 15px; }
        
        
        .articles-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
        .article-card { background: var(--bg-surface); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); transition: 0.3s; border: 1px solid var(--border-color); display: flex; flex-direction: column; }
        .article-card:hover { box-shadow: var(--shadow-md); }
        .article-img { height: 200px; width: 100%; object-fit: cover; border-bottom: 1px solid var(--border-color); }
        .article-content { padding: 24px; flex: 1; display: flex; flex-direction: column; }
        .article-meta { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--text-muted); margin-bottom: 12px; flex-wrap: wrap; }
        .article-meta span { display: inline-flex; align-items: center; gap: 4px; }
        .article-title { font-size: 18px; font-weight: 600; margin-bottom: 12px; line-height: 1.4; }
        .article-title a { color: var(--text-main); }
        .article-title a:hover { color: var(--primary); }
        .article-summary { font-size: 14px; color: var(--text-muted); margin-bottom: 20px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .article-footer { margin-top: auto; display: flex; justify-content: space-between; align-items: center; padding-top: 16px; border-top: 1px dashed var(--border-color); }
        .article-tags { display: flex; gap: 8px; }
        .article-tag { font-size: 12px; background: var(--bg-body); padding: 4px 10px; border-radius: 20px; color: var(--text-muted); }
        .article-read { font-size: 14px; color: var(--primary); font-weight: 500; }

        
        .cta { padding: 80px 0; background: var(--text-main); color: #fff; text-align: center; }
        .cta h2 { font-size: 32px; font-weight: 700; margin-bottom: 16px; }
        .cta p { font-size: 18px; color: #9ca3af; margin-bottom: 32px; opacity: 0.9; }

        
        .footer { background: var(--bg-surface); padding: 60px 0 24px; border-top: 1px solid var(--border-color); }
        .footer-grid { display: grid; grid-template-columns: 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand p { color: var(--text-muted); margin-top: 16px; font-size: 14px; max-width: 300px; }
        .footer-title { font-size: 16px; font-weight: 600; margin-bottom: 20px; color: var(--text-main); }
        .footer-links li { margin-bottom: 12px; }
        .footer-links a { color: var(--text-muted); font-size: 14px; }
        .footer-links a:hover { color: var(--primary); }
        .footer-bottom { padding-top: 24px; border-top: 1px solid var(--border-color); display: flex; flex-direction: column; gap: 16px; align-items: center; font-size: 13px; color: var(--text-muted); text-align: center; }

        @media (min-width: 768px) {
            .hero-inner { grid-template-columns: 1.2fr 1fr; }
            .hero-content h1 { font-size: 48px; }
            .stats-grid { grid-template-columns: repeat(4, 1fr); }
            .features-grid { grid-template-columns: repeat(3, 1fr); }
            .articles-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
            .footer-bottom { flex-direction: row; justify-content: space-between; text-align: left; }
        }
        @media (min-width: 1024px) {
            .desktop-nav { display: flex; align-items: center; }
            .header-actions { display: flex; gap: 12px; }
            .menu-toggle { display: none; }
            .articles-grid { grid-template-columns: repeat(3, 1fr); }
        }