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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
            line-height: 1.8;
            color: #333;
            background: #f5f7fa;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        header {
            background: #fff;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
        }

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

        .logo {
            font-size: 24px;
            font-weight: bold;
            color: #ff6b35;
            text-decoration: none;
        }

        .nav {
            display: flex;
            gap: 30px;
        }

        .nav a {
            text-decoration: none;
            color: #333;
            font-weight: 500;
            transition: color 0.3s;
        }

        .nav a:hover {
            color: #ff6b35;
        }

        .hero {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: #fff;
            padding: 140px 20px 100px;
            text-align: center;
            margin-top: 60px;
        }

        .hero h1 {
            font-size: 48px;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .hero p {
            font-size: 20px;
            margin-bottom: 15px;
            opacity: 0.95;
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-badges {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 30px;
            flex-wrap: wrap;
        }

        .hero-badge {
            background: rgba(255, 255, 255, 0.2);
            padding: 8px 20px;
            border-radius: 20px;
            font-size: 14px;
            backdrop-filter: blur(10px);
        }

        .cta-button {
            display: inline-block;
            background: #ff6b35;
            color: #fff;
            padding: 18px 50px;
            border-radius: 50px;
            text-decoration: none;
            font-size: 20px;
            font-weight: 600;
            transition: all 0.3s;
            box-shadow: 0 4px 15px rgba(255, 107, 53, 0.4);
            margin-top: 10px;
        }

        .cta-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 107, 53, 0.6);
        }

        .qr-code-container {
            margin-top: 40px;
            text-align: center;
        }

        .qr-code {
            display: inline-block;
            background: #fff;
            padding: 20px;
            border-radius: 15px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .qr-code:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
        }

        .qr-image {
            width: 180px;
            height: 180px;
            border-radius: 10px;
            display: block;
        }

        .qr-text {
            color: #fff;
            font-size: 14px;
            margin-top: 15px;
            opacity: 0.9;
        }

        .about {
            padding: 80px 20px;
            background: #fff;
        }

        .about h2 {
            text-align: center;
            font-size: 36px;
            margin-bottom: 40px;
            color: #333;
        }

        .about-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
            gap: 40px;
            max-width: 1200px;
            margin: 0 auto;
        }

        .about-text p {
            margin-bottom: 20px;
            color: #555;
            font-size: 16px;
        }

        .about-stats {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: #fff;
            padding: 30px;
            border-radius: 10px;
            text-align: center;
        }

        .stat-number {
            font-size: 36px;
            font-weight: bold;
            margin-bottom: 10px;
        }

        .stat-label {
            font-size: 14px;
            opacity: 0.9;
        }

        .features {
            padding: 80px 20px;
            background: #f8f9fa;
        }

        .features h2 {
            text-align: center;
            font-size: 36px;
            margin-bottom: 50px;
            color: #333;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 30px;
            max-width: 1200px;
            margin: 0 auto;
        }

        .feature-card {
            background: #fff;
            padding: 40px 30px;
            border-radius: 12px;
            text-align: center;
            transition: transform 0.3s, box-shadow 0.3s;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }

        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
        }

        .feature-icon {
            font-size: 56px;
            margin-bottom: 20px;
        }

        .feature-card h3 {
            font-size: 24px;
            margin-bottom: 15px;
            color: #333;
        }

        .feature-card p {
            color: #666;
            line-height: 1.8;
            font-size: 15px;
        }

        .task-types {
            padding: 80px 20px;
            background: #fff;
        }

        .task-types h2 {
            text-align: center;
            font-size: 36px;
            margin-bottom: 20px;
            color: #333;
        }

        .task-types-subtitle {
            text-align: center;
            color: #666;
            margin-bottom: 50px;
            font-size: 16px;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }

        .task-types-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
            max-width: 1200px;
            margin: 0 auto;
        }

        .task-type-card {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            padding: 35px 25px;
            border-radius: 12px;
            border-left: 4px solid #667eea;
            transition: all 0.3s;
        }

        .task-type-card:hover {
            transform: translateX(5px);
            box-shadow: 0 4px 15px rgba(102, 126, 234, 0.2);
        }

        .task-type-card h3 {
            font-size: 20px;
            margin-bottom: 12px;
            color: #333;
        }

        .task-type-card p {
            color: #666;
            font-size: 14px;
            line-height: 1.7;
        }

        .how-it-works {
            padding: 80px 20px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: #fff;
        }

        .how-it-works h2 {
            text-align: center;
            font-size: 36px;
            margin-bottom: 20px;
        }

        .how-it-works-subtitle {
            text-align: center;
            margin-bottom: 50px;
            opacity: 0.9;
            font-size: 16px;
        }

        .steps {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
            max-width: 1200px;
            margin: 0 auto;
        }

        .step {
            flex: 1;
            min-width: 250px;
            text-align: center;
            padding: 20px;
        }

        .step-number {
            width: 70px;
            height: 70px;
            background: #fff;
            color: #667eea;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            font-weight: bold;
            margin: 0 auto 20px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }

        .step h3 {
            font-size: 22px;
            margin-bottom: 12px;
            font-weight: 600;
        }

        .step p {
            opacity: 0.9;
            font-size: 15px;
            line-height: 1.7;
        }

        .testimonials {
            padding: 80px 20px;
            background: #f8f9fa;
        }

        .testimonials h2 {
            text-align: center;
            font-size: 36px;
            margin-bottom: 20px;
            color: #333;
        }

        .testimonials-subtitle {
            text-align: center;
            color: #666;
            margin-bottom: 50px;
            font-size: 16px;
        }

        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 30px;
            max-width: 1200px;
            margin: 0 auto;
        }

        .testimonial-card {
            background: #fff;
            padding: 35px;
            border-radius: 12px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
            border-top: 4px solid #ff6b35;
        }

        .testimonial-text {
            font-style: italic;
            color: #555;
            margin-bottom: 25px;
            line-height: 1.8;
            font-size: 15px;
        }

        .testimonial-author {
            font-weight: 600;
            color: #333;
            font-size: 16px;
        }

        .testimonial-role {
            color: #999;
            font-size: 14px;
            margin-top: 5px;
        }

        .faq {
            padding: 80px 20px;
            background: #fff;
        }

        .faq h2 {
            text-align: center;
            font-size: 36px;
            margin-bottom: 50px;
            color: #333;
        }

        .faq-list {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            background: #f8f9fa;
            margin-bottom: 20px;
            padding: 30px;
            border-radius: 10px;
            border-left: 4px solid #667eea;
            transition: all 0.3s;
        }

        .faq-item:hover {
            background: #fff;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        }

        .faq-item h3 {
            font-size: 18px;
            margin-bottom: 12px;
            color: #333;
            font-weight: 600;
        }

        .faq-item p {
            color: #666;
            line-height: 1.8;
            font-size: 15px;
        }

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

        .download-section h2 {
            font-size: 40px;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .download-section p {
            font-size: 18px;
            margin-bottom: 15px;
            opacity: 0.95;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .download-features {
            display: flex;
            justify-content: center;
            gap: 30px;
            margin: 30px 0;
            flex-wrap: wrap;
        }

        .download-feature {
            background: rgba(255, 255, 255, 0.15);
            padding: 10px 25px;
            border-radius: 25px;
            font-size: 14px;
            backdrop-filter: blur(10px);
        }

        .download-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-top: 30px;
        }

        .download-btn {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            background: #fff;
            color: #667eea;
            padding: 18px 40px;
            border-radius: 10px;
            text-decoration: none;
            font-weight: 600;
            font-size: 16px;
            transition: transform 0.3s, box-shadow 0.3s;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }

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

        .download-qr-container {
            margin-top: 50px;
            text-align: center;
        }

        .download-qr-wrapper {
            display: inline-block;
            background: #fff;
            padding: 25px;
            border-radius: 15px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .download-qr-wrapper:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
        }

        .download-qr-image {
            width: 200px;
            height: 200px;
            border-radius: 10px;
            display: block;
        }

        .download-qr-text {
            color: #667eea;
            font-size: 16px;
            font-weight: 600;
            margin-top: 15px;
            margin-bottom: 0;
        }

        .footer {
            background: #1a1a2e;
            color: #fff;
            padding: 60px 20px 30px;
        }

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

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-section h3 {
            font-size: 20px;
            margin-bottom: 20px;
            color: #ff6b35;
        }

        .footer-section p {
            color: #999;
            line-height: 1.8;
            margin-bottom: 15px;
            font-size: 14px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s;
            font-size: 14px;
        }

        .footer-links a:hover {
            color: #ff6b35;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 30px;
            text-align: center;
        }

        .copyright {
            color: #999;
            font-size: 14px;
        }

        .company-info {
            color: #666;
            font-size: 13px;
            margin-top: 10px;
        }

        @media (max-width: 768px) {
            .hero h1 {
                font-size: 32px;
            }

            .hero p {
                font-size: 16px;
            }

            .hero-badges {
                gap: 10px;
            }

            .hero-badge {
                font-size: 12px;
                padding: 6px 15px;
            }

            .cta-button {
                padding: 15px 35px;
                font-size: 18px;
            }

            .qr-image {
                width: 150px;
                height: 150px;
            }

            .download-qr-image {
                width: 160px;
                height: 160px;
            }

            .download-qr-text {
                font-size: 14px;
            }

            .nav {
                display: none;
            }

            .about-content {
                grid-template-columns: 1fr;
            }

            .about-stats {
                grid-template-columns: 1fr;
            }

            .features h2,
            .task-types h2,
            .how-it-works h2,
            .testimonials h2,
            .faq h2,
            .download-section h2 {
                font-size: 28px;
            }

            .steps {
                flex-direction: column;
                gap: 30px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }
        }