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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
        }

        .kubwen-header {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .kubwen-nav-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }

        .kubwen-logo-wrapper {
            display: flex;
            align-items: center;
        }

        .kubwen-logo-wrapper img {
            height: 45px;
            width: auto;
        }

        .kubwen-nav-menu {
            display: flex;
            gap: 30px;
            align-items: center;
        }

        .kubwen-nav-link {
            color: #ffffff;
            text-decoration: none;
            font-size: 16px;
            font-weight: 500;
            transition: all 0.3s ease;
            padding: 8px 15px;
            border-radius: 5px;
        }

        .kubwen-nav-link:hover {
            background-color: rgba(255,255,255,0.2);
            transform: translateY(-2px);
        }

        .kubwen-hero-section {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 80px 20px;
            text-align: center;
        }

        .kubwen-hero-content {
            max-width: 1200px;
            margin: 0 auto;
        }

        .kubwen-main-title {
            font-size: 48px;
            font-weight: 700;
            margin-bottom: 20px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
        }

        .kubwen-subtitle {
            font-size: 22px;
            margin-bottom: 40px;
            opacity: 0.95;
        }

        .kubwen-cta-primary {
            display: inline-block;
            background-color: #ff6b6b;
            color: white;
            padding: 15px 50px;
            font-size: 18px;
            font-weight: 600;
            text-decoration: none;
            border-radius: 50px;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(255,107,107,0.4);
        }

        .kubwen-cta-primary:hover {
            background-color: #ff5252;
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(255,107,107,0.6);
        }

        .kubwen-main-content {
            max-width: 1200px;
            margin: 60px auto;
            padding: 0 20px;
        }

        .kubwen-section-block {
            background: white;
            border-radius: 15px;
            padding: 50px;
            margin-bottom: 40px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.08);
        }

        .kubwen-section-heading {
            font-size: 32px;
            color: #667eea;
            margin-bottom: 30px;
            text-align: center;
            font-weight: 700;
        }

        .kubwen-intro-text {
            font-size: 18px;
            line-height: 1.8;
            color: #555;
            margin-bottom: 20px;
            text-align: justify;
        }

        .kubwen-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }

        .kubwen-feature-card {
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            padding: 30px;
            border-radius: 12px;
            text-align: center;
            transition: all 0.3s ease;
        }

        .kubwen-feature-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.15);
        }

        .kubwen-feature-icon {
            font-size: 48px;
            margin-bottom: 15px;
        }

        .kubwen-feature-title {
            font-size: 22px;
            font-weight: 600;
            color: #333;
            margin-bottom: 10px;
        }

        .kubwen-feature-desc {
            font-size: 15px;
            color: #666;
            line-height: 1.6;
        }

        .kubwen-download-section {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 60px 20px;
            text-align: center;
            margin: 60px 0;
        }

        .kubwen-download-title {
            font-size: 36px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .kubwen-download-desc {
            font-size: 18px;
            margin-bottom: 40px;
            opacity: 0.95;
        }

        .kubwen-download-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .kubwen-btn-download {
            background-color: white;
            color: #667eea;
            padding: 15px 40px;
            font-size: 16px;
            font-weight: 600;
            text-decoration: none;
            border-radius: 50px;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
        }

        .kubwen-btn-download:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(0,0,0,0.3);
        }

        .kubwen-stats-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin: 40px 0;
        }

        .kubwen-stat-item {
            text-align: center;
            padding: 30px;
            background: white;
            border-radius: 12px;
            box-shadow: 0 3px 15px rgba(0,0,0,0.08);
        }

        .kubwen-stat-number {
            font-size: 42px;
            font-weight: 700;
            color: #667eea;
            margin-bottom: 10px;
        }

        .kubwen-stat-label {
            font-size: 16px;
            color: #666;
        }

        .kubwen-footer {
            background-color: #2c3e50;
            color: #ecf0f1;
            padding: 50px 20px 20px;
        }

        .kubwen-footer-content {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 30px;
        }

        .kubwen-footer-section {
            display: flex;
            flex-direction: column;
        }

        .kubwen-footer-title {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 20px;
            color: #ffffff;
        }

        .kubwen-footer-link {
            color: #bdc3c7;
            text-decoration: none;
            margin-bottom: 10px;
            transition: color 0.3s ease;
        }

        .kubwen-footer-link:hover {
            color: #ffffff;
        }

        .kubwen-footer-text {
            color: #bdc3c7;
            font-size: 14px;
            line-height: 1.8;
        }

        .kubwen-copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #34495e;
            color: #95a5a6;
            font-size: 14px;
        }

        .kubwen-highlight {
            color: #667eea;
            font-weight: 600;
        }

        @media (max-width: 768px) {
            .kubwen-nav-menu {
                flex-direction: column;
                gap: 10px;
            }

            .kubwen-main-title {
                font-size: 32px;
            }

            .kubwen-subtitle {
                font-size: 18px;
            }

            .kubwen-section-block {
                padding: 30px 20px;
            }

            .kubwen-section-heading {
                font-size: 26px;
            }

            .kubwen-download-buttons {
                flex-direction: column;
                align-items: center;
            }
        }