:root {
            --primary: #1D7BFF;
            --primary-glow: rgba(29, 123, 255, 0.15);
            --secondary: rgb(255, 85, 85);
            --bg-dark: #0B0F19;
            --bg-card: #111827;
            --bg-light: #1F2937;
            --text-light: #F3F4F6;
            --text-muted: #9CA3AF;
            --border-color: rgba(255, 255, 255, 0.08);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            background-color: var(--bg-dark);
            color: var(--text-light);
            font-family: var(--font-sans);
            line-height: 1.6;
            overflow-x: hidden;
        }
        a { color: inherit; text-decoration: none; transition: all 0.3s ease; }
        
        
        header {
            background: rgba(11, 15, 25, 0.8);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            position: fixed;
            top: 0; left: 0; width: 100%; z-index: 1000;
        }
        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            height: 70px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
        }
        .logo img {
            height: 40px;
            width: auto;
            max-width: 160px;
            object-fit: contain;
            flex-shrink: 0;
        }
        .logo span {
            font-size: 20px;
            font-weight: 800;
            color: #FFFFFF;
            letter-spacing: 0.5px;
        }
        .nav-menu {
            display: flex;
            gap: 24px;
            align-items: center;
        }
        .nav-menu a {
            font-size: 15px;
            color: var(--text-muted);
            font-weight: 500;
        }
        .nav-menu a:hover, .nav-menu a.active {
            color: var(--primary);
        }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: #FFF;
            font-size: 24px;
            cursor: pointer;
        }

        
        .mobile-drawer {
            position: fixed;
            top: 0; left: -280px; width: 280px; height: 100%;
            background: var(--bg-card);
            z-index: 1001;
            padding: 30px 20px;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            border-right: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .mobile-drawer.active { left: 0; }
        .drawer-overlay {
            position: fixed;
            top: 0; left: 0; width: 100%; height: 100%;
            background: rgba(0,0,0,0.6);
            backdrop-filter: blur(4px);
            z-index: 1000;
            display: none;
        }
        .drawer-overlay.active { display: block; }
        .drawer-close {
            align-self: flex-end;
            background: none;
            border: none;
            color: var(--text-muted);
            font-size: 24px;
            cursor: pointer;
        }
        .drawer-menu {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .drawer-menu a {
            font-size: 16px;
            color: var(--text-light);
            font-weight: 500;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }

        
        .hero {
            padding: 150px 20px 80px;
            background: radial-gradient(circle at 50% 20%, rgba(29, 123, 255, 0.15) 0%, transparent 60%);
            text-align: center;
            position: relative;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(29, 123, 255, 0.1);
            border: 1px solid rgba(29, 123, 255, 0.3);
            padding: 6px 16px;
            border-radius: 100px;
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 24px;
            text-transform: uppercase;
        }
        .hero-badge span {
            width: 6px;
            height: 6px;
            background: var(--secondary);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 8px var(--secondary);
        }
        .hero-title {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.2;
            max-width: 800px;
            margin: 0 auto 20px;
            color: #FFFFFF;
        }
        .hero-subtitle {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .hero-btns {
            display: flex;
            gap: 16px;
            justify-content: center;
            margin-bottom: 60px;
        }
        .btn {
            padding: 12px 28px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            cursor: pointer;
            transition: all 0.3s;
        }
        .btn-primary {
            background: var(--primary);
            color: #FFF;
            box-shadow: 0 4px 20px rgba(29, 123, 255, 0.4);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(29, 123, 255, 0.5);
        }
        .btn-secondary {
            background: rgba(255, 255, 255, 0.05);
            color: #FFF;
            border: 1px solid var(--border-color);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }
        
        
        .visual-container {
            max-width: 1000px;
            margin: 0 auto;
            position: relative;
            padding: 40px 0;
        }
        .visual-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.4);
            position: relative;
            overflow: hidden;
            min-height: 350px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .panel-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 15px;
            margin-bottom: 20px;
        }
        .panel-title {
            font-size: 16px;
            font-weight: 700;
            color: #FFFFFF;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .panel-dot {
            width: 8px;
            height: 8px;
            background: #10B981;
            border-radius: 50%;
        }
        .panel-chart {
            flex-grow: 1;
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 15px;
            height: 180px;
            padding: 10px 0;
        }
        .chart-bar {
            flex: 1;
            background: linear-gradient(180deg, var(--primary) 0%, rgba(29,123,255,0.1) 100%);
            border-radius: 4px;
            position: relative;
            min-height: 20px;
        }
        .chart-bar::after {
            content: attr(data-value);
            position: absolute;
            top: -25px;
            left: 50%;
            transform: translateX(-50%);
            font-size: 11px;
            color: var(--text-muted);
        }
        .surround-card {
            position: absolute;
            background: rgba(17, 24, 39, 0.9);
            border: 1px solid rgba(29, 123, 255, 0.3);
            border-radius: 12px;
            padding: 16px 20px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.3);
            backdrop-filter: blur(8px);
            width: 220px;
            text-align: left;
            transition: all 0.3s;
        }
        .surround-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
        }
        .card-t1 { top: 10%; left: -60px; }
        .card-t2 { top: 10%; right: -60px; }
        .card-t3 { bottom: 15%; left: -80px; }
        .card-t4 { bottom: 15%; right: -80px; }
        .sc-title { font-size: 14px; font-weight: 700; color: #FFF; margin-bottom: 6px; }
        .sc-desc { font-size: 12px; color: var(--text-muted); line-height: 1.4; }

        
        .metrics-section {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px 80px;
        }
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: 16px;
        }
        .metric-item {
            text-align: center;
        }
        .metric-val {
            font-size: 32px;
            font-weight: 800;
            color: #FFF;
            margin-bottom: 8px;
        }
        .metric-val span { color: var(--primary); }
        .metric-label {
            font-size: 14px;
            color: var(--text-muted);
        }

        
        .section {
            padding: 80px 20px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .sec-header {
            text-align: center;
            margin-bottom: 60px;
        }
        .sec-title {
            font-size: 32px;
            font-weight: 800;
            color: #FFF;
            margin-bottom: 16px;
        }
        .sec-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            transition: all 0.3s;
        }
        .feature-card:hover {
            transform: translateY(-5px);
            border-color: rgba(29, 123, 255, 0.4);
        }
        .feat-icon {
            width: 50px;
            height: 50px;
            background: rgba(29, 123, 255, 0.1);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 20px;
            margin-bottom: 24px;
        }
        .feat-title {
            font-size: 18px;
            font-weight: 700;
            color: #FFF;
            margin-bottom: 12px;
        }
        .feat-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .art-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all 0.3s;
        }
        .art-card:hover {
            transform: translateY(-5px);
        }
        .art-img {
            height: 180px;
            background-color: var(--bg-light);
            background-size: cover;
            background-position: center;
        }
        .art-content {
            padding: 24px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        .art-meta {
            display: flex;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .art-title {
            font-size: 16px;
            font-weight: 700;
            color: #FFF;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .art-title:hover { color: var(--primary); }
        .art-desc {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-grow: 1;
            line-height: 1.5;
        }
        .art-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid var(--border-color);
            padding-top: 15px;
        }
        .art-tag {
            background: rgba(29, 123, 255, 0.1);
            color: var(--primary);
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 11px;
        }
        .art-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
        }

        
        .cta-section {
            background: linear-gradient(135deg, #111827 0%, #0B0F19 100%);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 80px 20px;
            text-align: center;
        }
        .cta-content {
            max-width: 600px;
            margin: 0 auto;
        }

        
        footer {
            background: #070A13;
            border-top: 1px solid var(--border-color);
            padding: 60px 20px 30px;
        }
        .footer-grid {
            max-width: 1200px;
            margin: 0 auto 40px;
            display: grid;
            grid-template-columns: 2fr repeat(3, 1fr);
            gap: 40px;
        }
        .footer-logo-desc {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .footer-desc {
            font-size: 14px;
            color: var(--text-muted);
            max-width: 320px;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #FFF;
            margin-bottom: 20px;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-muted);
        }
        .footer-links a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-bottom {
            max-width: 1200px;
            margin: 0 auto;
            border-top: 1px solid var(--border-color);
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
            gap: 15px;
        }

        
        @media (max-width: 1024px) {
            .visual-container { max-width: 80%; }
            .surround-card { position: static; width: 100%; margin-top: 15px; box-shadow: none; }
            .visual-panel { min-height: auto; }
            .metrics-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
            .features-grid, .articles-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .nav-menu { display: none; }
            .menu-toggle { display: block; }
            .hero-title { font-size: 32px; }
            .hero-subtitle { font-size: 15px; }
            .hero-btns { flex-direction: column; max-width: 280px; margin: 0 auto 40px; }
            .features-grid, .articles-grid, .footer-grid { grid-template-columns: 1fr; }
            .metrics-grid { grid-template-columns: 1fr; }
            .footer-grid { gap: 30px; }
        }