:root {
            --primary: rgb(26,115,232);
            --primary-hover: rgb(22,98,200);
            --bg-body: #f4f7fe;
            --text-main: #2c3e50;
            --text-muted: #64748b;
            --border: #e2e8f0;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; background: var(--bg-body); color: var(--text-main); line-height: 1.6; }
        a { text-decoration: none; color: inherit; transition: 0.3s; }
        ul { list-style: none; }
        img { max-width: 100%; height: auto; display: block; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        .btn { display: inline-block; padding: 12px 28px; border-radius: 6px; font-weight: 600; cursor: pointer; transition: 0.3s; text-align: center; }
        .btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 12px rgba(26,115,232,0.3); }
        .btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); }
        .btn-outline { border: 2px solid #fff; color: #fff; }
        .btn-outline:hover { background: #fff; color: var(--primary); }
        
        
        .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(--primary); white-space: nowrap; }

        
        .header { background: #fff; box-shadow: 0 2px 10px rgba(0,0,0,0.05); position: sticky; top: 0; z-index: 100; }
        .header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
        .desktop-nav { display: flex; gap: 28px; align-items: center; }
        .desktop-nav a { font-weight: 500; color: #334155; }
        .desktop-nav a:hover { color: var(--primary); }
        .mobile-btn { display: none; cursor: pointer; color: #333; }

        
        .drawer-mask { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 998; 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: #fff; z-index: 999; transition: 0.3s; display: flex; flex-direction: column; box-shadow: 2px 0 15px rgba(0,0,0,0.1); }
        .drawer.active { left: 0; }
        .drawer-header { padding: 20px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
        .drawer-close { font-size: 28px; cursor: pointer; color: #94a3b8; line-height: 1; }
        .drawer-nav { padding: 20px; display: flex; flex-direction: column; gap: 4px; overflow-y: auto; }
        .drawer-nav a { padding: 12px 0; border-bottom: 1px dashed var(--border); font-weight: 500; }

        
        .hero { position: relative; padding: 100px 0; background: linear-gradient(135deg, rgba(15,23,42,0.92) 0%, rgba(26,115,232,0.85) 100%), url('https://picsum.photos/id/10/1920/800') center/cover no-repeat; color: #fff; overflow: hidden; }
        .hero-inner { display: flex; align-items: center; gap: 60px; }
        .hero-text { flex: 1; }
        .hero-text h1 { font-size: 42px; line-height: 1.3; margin-bottom: 20px; font-weight: 800; }
        .hero-text p { font-size: 18px; opacity: 0.9; margin-bottom: 35px; line-height: 1.6; }
        .hero-btns { display: flex; gap: 16px; }
        .hero-img { flex: 1; }
        .hero-img img { border-radius: 12px; box-shadow: 0 20px 40px rgba(0,0,0,0.3); border: 1px solid rgba(255,255,255,0.1); }

        
        .features { padding: 80px 0; background: #fff; }
        .sec-title { text-align: center; margin-bottom: 50px; }
        .sec-title h2 { font-size: 32px; color: #1e293b; margin-bottom: 12px; }
        .sec-title p { color: var(--text-muted); font-size: 16px; }
        .feat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
        .feat-card { padding: 35px 25px; border-radius: 12px; background: var(--bg-body); text-align: center; transition: 0.3s; border: 1px solid transparent; }
        .feat-card:hover { transform: translateY(-5px); border-color: var(--primary); background: #fff; box-shadow: 0 10px 30px rgba(26,115,232,0.1); }
        .feat-icon { width: 60px; height: 60px; background: rgba(26,115,232,0.1); color: var(--primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; font-size: 24px; font-weight: bold; }
        .feat-card h3 { font-size: 20px; margin-bottom: 12px; color: #1e293b; }
        .feat-card p { font-size: 14px; color: var(--text-muted); }

        
        .intro { padding: 80px 0; }
        .intro-inner { display: flex; align-items: center; gap: 60px; background: #fff; padding: 50px; border-radius: 16px; box-shadow: 0 4px 20px rgba(0,0,0,0.03); }
        .intro-img { flex: 1; position: relative; }
        .intro-img img { border-radius: 12px; }
        .intro-img::after { content: ''; position: absolute; bottom: -20px; right: -20px; width: 100px; height: 100px; background: var(--primary); opacity: 0.1; border-radius: 12px; z-index: -1; }
        .intro-text { flex: 1; }
        .intro-text h2 { font-size: 32px; margin-bottom: 20px; color: #1e293b; }
        .intro-text p { color: var(--text-muted); margin-bottom: 20px; }
        .stats { display: flex; gap: 30px; margin-top: 30px; }
        .stat-item h4 { font-size: 28px; color: var(--primary); margin-bottom: 5px; }
        .stat-item span { font-size: 14px; color: var(--text-muted); }

        
        .articles { padding: 80px 0; background: #fff; }
        .art-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
        .art-card { border: 1px solid var(--border); border-radius: 12px; overflow: hidden; transition: 0.3s; background: #fff; }
        .art-card:hover { box-shadow: 0 10px 25px rgba(0,0,0,0.08); transform: translateY(-4px); }
        .art-img { display: block; aspect-ratio: 16/9; overflow: hidden; }
        .art-img img { width: 100%; height: 100%; object-fit: cover; transition: 0.5s; }
        .art-card:hover .art-img img { transform: scale(1.05); }
        .art-body { padding: 24px; }
        .art-title { font-size: 18px; margin-bottom: 12px; line-height: 1.4; }
        .art-title a { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; color: #1e293b; }
        .art-desc { font-size: 14px; color: var(--text-muted); margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .art-meta { display: flex; justify-content: space-between; font-size: 12px; color: #94a3b8; margin-bottom: 12px; padding-bottom: 12px; border-bottom: 1px solid var(--border); }
        .art-tags { font-size: 12px; color: var(--primary); }

        
        .cta { padding: 80px 0; text-align: center; background: linear-gradient(to right, rgba(26,115,232,0.05), rgba(26,115,232,0.15)); }
        .cta h2 { font-size: 32px; margin-bottom: 20px; }
        .cta p { font-size: 18px; color: var(--text-muted); margin-bottom: 30px; max-width: 600px; margin-left: auto; margin-right: auto; }

        
        .footer { background: #0f172a; color: #94a3b8; padding: 70px 0 20px; }
        .footer .logo span { color: #fff; }
        .footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; margin-bottom: 50px; }
        .footer-desc { margin-top: 20px; font-size: 14px; line-height: 1.8; }
        .footer-col h3 { color: #fff; font-size: 16px; margin-bottom: 25px; font-weight: 600; }
        .footer-col ul { display: flex; flex-direction: column; gap: 12px; }
        .footer-col a:hover { color: #fff; }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 25px; text-align: center; font-size: 14px; }

        @media(max-width: 992px) {
            .feat-grid, .art-grid { grid-template-columns: repeat(2, 1fr); }
            .hero-inner, .intro-inner { flex-direction: column; }
            .footer-inner { grid-template-columns: 1fr 1fr; }
        }
        @media(max-width: 768px) {
            .desktop-nav { display: none; }
            .mobile-btn { display: block; }
            .feat-grid, .art-grid, .footer-inner { grid-template-columns: 1fr; }
            .hero { padding: 60px 0; text-align: center; }
            .hero-btns { justify-content: center; }
        }