:root {
            --primary: rgb(68, 71, 90);
            --primary-light: rgb(88, 92, 115);
            --primary-dark: rgb(48, 51, 65);
            --accent: #e63946;
            --accent-hover: #d62828;
            --text-dark: #1f2937;
            --text-muted: #6b7280;
            --bg-body: #f3f4f6;
            --bg-card: #ffffff;
            --border-color: #e5e7eb;
            --radius: 12px;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; background-color: var(--bg-body); color: var(--text-dark); line-height: 1.6; }
        a { text-decoration: none; color: inherit; transition: color 0.3s ease; }
        ul, ol { list-style: none; }
        img { max-width: 100%; height: auto; display: block; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        
        
        .site-header { background-color: var(--primary); color: #fff; position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
        .header-inner { display: flex; align-items: center; justify-content: space-between; height: 70px; }
        
        
        .logo { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
        .logo img { display: block; height: 40px; width: auto; max-width: 160px; object-fit: contain; flex-shrink: 0; }
        .logo span { display: inline-block; font-size: 22px; font-weight: 800; line-height: 1; color: #ffffff; white-space: nowrap; letter-spacing: 1px; }
        
        .desktop-nav { display: flex; gap: 30px; }
        .desktop-nav a { font-size: 16px; font-weight: 500; opacity: 0.9; }
        .desktop-nav a:hover { opacity: 1; color: #fff; text-shadow: 0 0 8px rgba(255,255,255,0.5); }
        
        .header-actions { display: flex; align-items: center; gap: 15px; }
        .btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 24px; border-radius: 8px; font-weight: 600; cursor: pointer; transition: all 0.3s ease; }
        .btn-accent { background-color: var(--accent); color: #fff; }
        .btn-accent:hover { background-color: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 4px 12px rgba(230, 57, 70, 0.3); }
        .btn-outline { border: 2px solid #fff; color: #fff; }
        .btn-outline:hover { background-color: #fff; color: var(--primary); }
        
        .mobile-toggle { display: none; background: none; border: none; cursor: pointer; padding: 5px; flex-direction: column; gap: 5px; }
        .mobile-toggle span { display: block; width: 24px; height: 2px; background-color: #fff; transition: 0.3s; }
        
        
        .drawer { position: fixed; inset: 0; z-index: 1000; pointer-events: none; visibility: hidden; }
        .drawer.active { pointer-events: auto; visibility: visible; }
        .drawer-overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.5); opacity: 0; transition: opacity 0.3s ease; }
        .drawer.active .drawer-overlay { opacity: 1; }
        .drawer-content { position: absolute; top: 0; bottom: 0; left: 0; width: 280px; background: #fff; transform: translateX(-100%); transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1); display: flex; flex-direction: column; }
        .drawer.active .drawer-content { transform: translateX(0); box-shadow: 4px 0 15px rgba(0,0,0,0.1); }
        .drawer-header { padding: 20px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; background: var(--primary); }
        .drawer-header .logo span { color: #fff; font-size: 18px; }
        .drawer-close { background: none; border: none; font-size: 28px; color: #fff; cursor: pointer; line-height: 1; }
        .drawer-nav { padding: 20px; overflow-y: auto; flex: 1; display: flex; flex-direction: column; gap: 15px; }
        .drawer-nav a { display: block; font-size: 16px; color: var(--text-dark); font-weight: 500; padding: 8px 0; border-bottom: 1px dashed var(--border-color); }
        
        
        .hero { position: relative; background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); color: #fff; padding: 80px 0; overflow: hidden; }
        .hero::before { content: ''; position: absolute; inset: 0; background: url('data:image/svg+xml;utf8,<svg width="100" height="100" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="40" stroke="rgba(255,255,255,0.05)" stroke-width="2" fill="none"/></svg>') repeat; opacity: 0.5; }
        .hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; position: relative; z-index: 1; }
        .hero-text h1 { font-size: 42px; font-weight: 800; line-height: 1.2; margin-bottom: 20px; text-shadow: 0 2px 4px rgba(0,0,0,0.3); }
        .hero-text p { font-size: 18px; opacity: 0.8; margin-bottom: 30px; }
        .hero-visual { position: relative; display: flex; justify-content: center; }
        .data-card-mock { background: rgba(255,255,255,0.1); backdrop-filter: blur(10px); border: 1px solid rgba(255,255,255,0.2); border-radius: var(--radius); padding: 20px; box-shadow: 0 20px 40px rgba(0,0,0,0.2); transform: perspective(1000px) rotateY(-5deg); width: 100%; max-width: 400px; }
        .mock-line { height: 8px; background: rgba(255,255,255,0.2); border-radius: 4px; margin-bottom: 15px; }
        .mock-ball-wrap { display: flex; gap: 10px; margin-top: 20px; }
        .mock-ball { width: 40px; height: 40px; border-radius: 50%; background: var(--accent); display: flex; align-items: center; justify-content: center; font-weight: bold; box-shadow: inset -2px -2px 6px rgba(0,0,0,0.3); }
        .mock-ball.blue { background: #3b82f6; }
        
        
        .features { padding: 80px 0; background: #fff; }
        .section-header { text-align: center; margin-bottom: 50px; }
        .section-header h2 { font-size: 32px; color: var(--primary); margin-bottom: 15px; }
        .section-header p { color: var(--text-muted); font-size: 16px; }
        .feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; }
        .feature-card { padding: 30px; border-radius: var(--radius); background: var(--bg-body); text-align: center; transition: all 0.3s; border: 1px solid var(--border-color); }
        .feature-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); border-color: var(--primary-light); background: #fff; }
        .feature-icon { width: 64px; height: 64px; background: rgba(68, 71, 90, 0.1); color: var(--primary); border-radius: 16px; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; font-size: 32px; }
        .feature-card h3 { font-size: 20px; margin-bottom: 10px; }
        .feature-card p { color: var(--text-muted); font-size: 14px; }
        
        
        .articles-section { padding: 80px 0; }
        .grid-articles { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 30px; }
        .article-card { background: var(--bg-card); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: transform 0.3s; display: flex; flex-direction: column; }
        .article-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
        .article-img { width: 100%; height: 200px; object-fit: cover; }
        .article-img-wrap { position: relative; display: block; }
        .article-tag-badge { position: absolute; top: 15px; left: 15px; background: var(--accent); color: #fff; padding: 4px 10px; border-radius: 4px; font-size: 12px; font-weight: bold; }
        .article-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
        .article-title { font-size: 18px; font-weight: 600; margin-bottom: 10px; line-height: 1.4; }
        .article-title a { color: var(--text-dark); }
        .article-title a:hover { color: var(--primary); }
        .article-desc { color: var(--text-muted); font-size: 14px; margin-bottom: 15px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; flex: 1; }
        .article-meta { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--border-color); padding-top: 15px; font-size: 12px; color: #9ca3af; }
        .meta-item { display: flex; align-items: center; gap: 5px; }
        .meta-item svg { width: 14px; height: 14px; fill: currentColor; }
        
        
        .cta { background: var(--primary); padding: 60px 0; text-align: center; color: #fff; position: relative; overflow: hidden; }
        .cta::before { content: ''; position: absolute; top: -50%; left: -10%; width: 50%; height: 200%; background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.05) 50%, rgba(255,255,255,0) 100%); transform: rotate(25deg); }
        .cta h2 { font-size: 30px; margin-bottom: 20px; position: relative; z-index: 1; }
        .cta p { font-size: 16px; opacity: 0.8; margin-bottom: 30px; position: relative; z-index: 1; }
        
        
        .site-footer { background-color: var(--primary-dark); color: #d1d5db; padding: 60px 0 0 0; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand .logo span { color: #fff; }
        .footer-desc { margin-top: 15px; font-size: 14px; opacity: 0.8; line-height: 1.8; }
        .footer-title { color: #fff; font-size: 18px; font-weight: 600; margin-bottom: 20px; position: relative; padding-bottom: 10px; }
        .footer-title::after { content: ''; position: absolute; left: 0; bottom: 0; width: 30px; height: 2px; background: var(--accent); }
        .footer-links ul { display: flex; flex-direction: column; gap: 10px; }
        .footer-links a { font-size: 14px; transition: color 0.3s; display: inline-block; }
        .footer-links a:hover { color: #fff; transform: translateX(5px); }
        .footer-contact p { font-size: 14px; margin-bottom: 10px; }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 20px 0; text-align: center; font-size: 14px; opacity: 0.6; }
        
        @media (max-width: 992px) {
            .hero-grid { grid-template-columns: 1fr; text-align: center; }
            .hero-text h1 { font-size: 32px; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .desktop-nav, .header-actions .btn { display: none; }
            .mobile-toggle { display: flex; }
            .footer-grid { grid-template-columns: 1fr; gap: 30px; }
        }