/* CSS Reset & Base */
        *, *::before, *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        :root {
            --primary: #FF6B35;
            --primary-dark: #E55A2B;
            --primary-light: #FF8F5E;
            --secondary: #FFB627;
            --accent: #FF4757;
            --dark: #1A1A2E;
            --dark-2: #2D2D44;
            --gray-900: #1a1a2e;
            --gray-800: #2d2d44;
            --gray-700: #4a4a68;
            --gray-600: #6b6b8a;
            --gray-500: #8e8ea8;
            --gray-400: #b0b0c8;
            --gray-300: #d0d0e0;
            --gray-200: #e8e8f0;
            --gray-100: #f4f4f8;
            --gray-50: #fafafc;
            --white: #ffffff;
            --success: #2ED573;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
            --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --gradient-primary: linear-gradient(135deg, #FF6B35 0%, #FFB627 100%);
            --gradient-hero: linear-gradient(135deg, #FFF5F0 0%, #FFF9F0 50%, #FFFBF5 100%);
            --gradient-dark: linear-gradient(135deg, #1A1A2E 0%, #2D2D44 100%);
        }
        
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
            font-size: 16px;
            line-height: 1.6;
            color: var(--gray-800);
            background: var(--white);
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.3s ease;
        }
        
        ul, ol {
            list-style: none;
        }
        
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        
        .section {
            padding: 100px 0;
        }
        
        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }
        
        .section-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255, 107, 53, 0.1);
            color: var(--primary);
            border-radius: 100px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        
        .section-title {
            font-size: 42px;
            font-weight: 800;
            color: var(--gray-900);
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        
        .section-subtitle {
            font-size: 18px;
            color: var(--gray-600);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }
        
        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            font-size: 16px;
            font-weight: 600;
            border-radius: 100px;
            transition: all 0.3s ease;
            cursor: pointer;
            white-space: nowrap;
        }
        
        .btn-primary {
            background: var(--gradient-primary);
            color: var(--white);
            box-shadow: 0 4px 20px rgba(255, 107, 53, 0.35);
        }
        
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(255, 107, 53, 0.45);
        }
        
        .btn-secondary {
            background: var(--white);
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        
        .btn-secondary:hover {
            background: var(--primary);
            color: var(--white);
        }
        
        .btn-white {
            background: var(--white);
            color: var(--gray-900);
            box-shadow: var(--shadow-md);
        }
        
        .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }
        
        .btn-lg {
            padding: 18px 40px;
            font-size: 18px;
        }
        
        /* Navigation */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            transition: all 0.3s ease;
        }
        
        .navbar.scrolled {
            box-shadow: var(--shadow-sm);
        }
        
        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--gray-900);
        }
        
        .nav-logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            object-fit: cover;
            display: block;
        }
        
        .nav-logo span {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 36px;
        }
        
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--gray-700);
            position: relative;
            padding: 8px 0;
        }
        
        .nav-link:hover {
            color: var(--primary);
        }
        
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--gradient-primary);
            transition: width 0.3s ease;
        }
        
        .nav-link:hover::after {
            width: 100%;
        }
        
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        
        .mobile-menu-btn {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
        }
        
        .mobile-menu-btn span {
            width: 24px;
            height: 2px;
            background: var(--gray-900);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        
        /* Hero Section */
        .hero {
            padding: 140px 0 100px;
            background: var(--gradient-hero);
            position: relative;
            overflow: hidden;
        }
        
        .hero::before {
            content: '';
            position: absolute;
            top: -200px;
            right: -200px;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255,182,39,0.15) 0%, transparent 70%);
            border-radius: 50%;
        }
        
        .hero::after {
            content: '';
            position: absolute;
            bottom: -150px;
            left: -150px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255,107,53,0.1) 0%, transparent 70%);
            border-radius: 50%;
        }
        
        .hero-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        
        .hero-content {
            animation: fadeInUp 0.8s ease;
        }
        
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            background: var(--white);
            border-radius: 100px;
            box-shadow: var(--shadow-sm);
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 24px;
        }
        
        .hero-badge-dot {
            width: 8px;
            height: 8px;
            background: var(--success);
            border-radius: 50%;
            animation: pulse 2s infinite;
        }
        
        .hero-title {
            font-size: 56px;
            font-weight: 900;
            line-height: 1.1;
            color: var(--gray-900);
            margin-bottom: 24px;
            letter-spacing: -1px;
        }
        
        .hero-title .highlight {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .hero-desc {
            font-size: 19px;
            color: var(--gray-600);
            line-height: 1.8;
            margin-bottom: 36px;
            max-width: 520px;
        }
        
        .hero-cta {
            display: flex;
            gap: 16px;
            margin-bottom: 32px;
            flex-wrap: wrap;
        }
        
        .hero-features {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }
        
        .hero-feature {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--gray-600);
        }
        
        .hero-feature-icon {
            width: 20px;
            height: 20px;
            background: rgba(46, 213, 115, 0.15);
            color: var(--success);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: bold;
        }
        
        /* Phone Mockup */
        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
            animation: fadeInRight 0.8s ease;
        }
        
        .phone-mockup {
            width: 320px;
            height: 640px;
            background: var(--gradient-dark);
            border-radius: 44px;
            padding: 12px;
            box-shadow: var(--shadow-xl), 0 0 0 2px rgba(255,255,255,0.1) inset;
            position: relative;
        }
        
        .phone-screen {
            width: 100%;
            height: 100%;
            background: linear-gradient(180deg, #FFF5F0 0%, #FFFFFF 30%);
            border-radius: 32px;
            overflow: hidden;
            position: relative;
        }
        
        .phone-notch {
            position: absolute;
            top: 12px;
            left: 50%;
            transform: translateX(-50%);
            width: 120px;
            height: 28px;
            background: var(--dark);
            border-radius: 0 0 16px 16px;
            z-index: 10;
        }
        
        .phone-header {
            padding: 50px 20px 16px;
            background: var(--gradient-primary);
            color: white;
        }
        
        .phone-header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 12px;
        }
        
        .phone-balance {
            font-size: 12px;
            opacity: 0.9;
        }
        
        .phone-balance-amount {
            font-size: 28px;
            font-weight: 800;
            margin: 4px 0;
        }
        
        .phone-balance-btn {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(255,255,255,0.25);
            border-radius: 100px;
            font-size: 11px;
            font-weight: 600;
        }
        
        .phone-task-list {
            padding: 16px;
        }
        
        .phone-task-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--gray-900);
            margin-bottom: 12px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .phone-task-title span:last-child {
            font-size: 11px;
            color: var(--primary);
            font-weight: 500;
        }
        
        .phone-task-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px;
            background: var(--white);
            border-radius: 10px;
            margin-bottom: 8px;
            box-shadow: 0 1px 4px rgba(0,0,0,0.04);
        }
        
        .phone-task-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
        }
        
        .phone-task-info {
            flex: 1;
            min-width: 0;
        }
        
        .phone-task-name {
            font-size: 12px;
            font-weight: 600;
            color: var(--gray-800);
            margin-bottom: 2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        
        .phone-task-meta {
            font-size: 10px;
            color: var(--gray-500);
        }
        
        .phone-task-reward {
            font-size: 13px;
            font-weight: 800;
            color: var(--primary);
            flex-shrink: 0;
        }
        
        .floating-card {
            position: absolute;
            background: var(--white);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            box-shadow: var(--shadow-lg);
            display: flex;
            align-items: center;
            gap: 10px;
            animation: float 3s ease-in-out infinite;
        }
        
        .floating-card-1 {
            top: 80px;
            left: -20px;
            animation-delay: 0s;
        }
        
        .floating-card-2 {
            bottom: 120px;
            right: -10px;
            animation-delay: 1.5s;
        }
        
        .floating-card-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }
        
        .floating-card-text {
            font-size: 12px;
            color: var(--gray-600);
        }
        
        .floating-card-value {
            font-size: 16px;
            font-weight: 800;
            color: var(--gray-900);
        }
        
        /* Stats Section */
        .stats {
            padding: 60px 0;
            background: var(--white);
            border-bottom: 1px solid var(--gray-100);
        }
        
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            text-align: center;
        }
        
        .stat-item {
            position: relative;
        }
        
        .stat-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: -20px;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 50px;
            background: var(--gray-200);
        }
        
        .stat-number {
            font-size: 44px;
            font-weight: 900;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1;
            margin-bottom: 8px;
        }
        
        .stat-label {
            font-size: 15px;
            color: var(--gray-600);
            font-weight: 500;
        }
        
        /* Features Section */
        .features {
            background: var(--gray-50);
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        
        .feature-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 36px 30px;
            transition: all 0.4s ease;
            border: 1px solid var(--gray-100);
            position: relative;
            overflow: hidden;
        }
        
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-primary);
            transform: scaleX(0);
            transition: transform 0.4s ease;
        }
        
        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        
        .feature-card:hover::before {
            transform: scaleX(1);
        }
        
        .feature-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            margin-bottom: 24px;
        }
        
        .feature-icon-1 { background: linear-gradient(135deg, #FFE8DD, #FFD4BC); }
        .feature-icon-2 { background: linear-gradient(135deg, #FFF3D6, #FFE8A8); }
        .feature-icon-3 { background: linear-gradient(135deg, #E8F8EF, #C8F0D8); }
        .feature-icon-4 { background: linear-gradient(135deg, #E8F0FF, #C8D8FF); }
        .feature-icon-5 { background: linear-gradient(135deg, #F5E8FF, #E5C8FF); }
        .feature-icon-6 { background: linear-gradient(135deg, #FFE8F0, #FFC8DC); }
        
        .feature-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--gray-900);
            margin-bottom: 12px;
        }
        
        .feature-desc {
            font-size: 15px;
            color: var(--gray-600);
            line-height: 1.7;
        }
        
        /* How It Works */
        .how-it-works {
            background: var(--white);
        }
        
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            position: relative;
        }
        
        .steps-grid::before {
            content: '';
            position: absolute;
            top: 50px;
            left: 15%;
            right: 15%;
            height: 2px;
            background: repeating-linear-gradient(90deg, var(--gray-300) 0, var(--gray-300) 8px, transparent 8px, transparent 16px);
            z-index: 0;
        }
        
        .step-item {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        
        .step-number {
            width: 100px;
            height: 100px;
            margin: 0 auto 28px;
            background: var(--white);
            border: 3px solid var(--gray-200);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 36px;
            font-weight: 900;
            color: var(--primary);
            transition: all 0.4s ease;
            position: relative;
        }
        
        .step-item:hover .step-number {
            border-color: var(--primary);
            background: var(--gradient-primary);
            color: var(--white);
            transform: scale(1.1);
            box-shadow: 0 8px 30px rgba(255,107,53,0.3);
        }
        
        .step-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--gray-900);
            margin-bottom: 12px;
        }
        
        .step-desc {
            font-size: 15px;
            color: var(--gray-600);
            line-height: 1.7;
            max-width: 280px;
            margin: 0 auto;
        }
        
        /* Task Types */
        .task-types {
            background: var(--gray-50);
        }
        
        .task-types-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        
        .task-type-card {
            background: var(--white);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            text-align: center;
            transition: all 0.3s ease;
            border: 1px solid var(--gray-100);
        }
        
        .task-type-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        
        .task-type-icon {
            font-size: 40px;
            margin-bottom: 16px;
        }
        
        .task-type-name {
            font-size: 17px;
            font-weight: 700;
            color: var(--gray-900);
            margin-bottom: 8px;
        }
        
        .task-type-desc {
            font-size: 13px;
            color: var(--gray-500);
            line-height: 1.6;
        }
        
        .task-type-reward {
            display: inline-block;
            margin-top: 12px;
            padding: 4px 12px;
            background: rgba(255,107,53,0.1);
            color: var(--primary);
            border-radius: 100px;
            font-size: 12px;
            font-weight: 600;
        }
        
        /* Testimonials */
        .testimonials {
            background: var(--white);
        }
        
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        
        .testimonial-card {
            background: var(--gray-50);
            border-radius: var(--radius-lg);
            padding: 32px;
            transition: all 0.3s ease;
        }
        
        .testimonial-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        
        .testimonial-stars {
            color: var(--secondary);
            font-size: 16px;
            margin-bottom: 16px;
            letter-spacing: 2px;
        }
        
        .testimonial-text {
            font-size: 15px;
            color: var(--gray-700);
            line-height: 1.8;
            margin-bottom: 24px;
            font-style: normal;
        }
        
        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        
        .testimonial-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            color: white;
        }
        
        .testimonial-name {
            font-size: 15px;
            font-weight: 700;
            color: var(--gray-900);
            margin-bottom: 2px;
        }
        
        .testimonial-role {
            font-size: 13px;
            color: var(--gray-500);
        }
        
        /* FAQ Section */
        .faq {
            background: var(--gray-50);
        }
        
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .faq-item {
            background: var(--white);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            border: 1px solid var(--gray-100);
            transition: all 0.3s ease;
        }
        
        .faq-item:hover {
            border-color: var(--gray-300);
        }
        
        .faq-question {
            width: 100%;
            padding: 24px 28px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 17px;
            font-weight: 600;
            color: var(--gray-900);
            text-align: left;
            cursor: pointer;
            transition: color 0.3s ease;
        }
        
        .faq-question:hover {
            color: var(--primary);
        }
        
        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--gray-100);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: var(--gray-600);
            flex-shrink: 0;
            transition: all 0.3s ease;
        }
        
        .faq-item.active .faq-icon {
            background: var(--gradient-primary);
            color: white;
            transform: rotate(45deg);
        }
        
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }
        
        .faq-item.active .faq-answer {
            max-height: 300px;
        }
        
        .faq-answer-content {
            padding: 0 28px 24px;
            font-size: 15px;
            color: var(--gray-600);
            line-height: 1.8;
        }
        
        /* CTA Section */
        .cta-section {
            padding: 100px 0;
            background: var(--gradient-dark);
            position: relative;
            overflow: hidden;
        }
        
        .cta-section::before {
            content: '';
            position: absolute;
            top: -100px;
            left: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255,107,53,0.2) 0%, transparent 70%);
            border-radius: 50%;
        }
        
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -100px;
            right: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255,182,39,0.15) 0%, transparent 70%);
            border-radius: 50%;
        }
        
        .cta-content {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        
        .cta-title {
            font-size: 44px;
            font-weight: 900;
            color: var(--white);
            margin-bottom: 20px;
            line-height: 1.2;
        }
        
        .cta-desc {
            font-size: 18px;
            color: rgba(255,255,255,0.7);
            margin-bottom: 40px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .cta-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }
        
        .cta-note {
            margin-top: 24px;
            font-size: 14px;
            color: rgba(255,255,255,0.5);
        }
        
        /* Footer */
        .footer {
            background: var(--gray-900);
            color: rgba(255,255,255,0.6);
            padding: 60px 0 30px;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-brand {
            max-width: 320px;
        }
        
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 16px;
        }
        
        .footer-logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            object-fit: cover;
            display: block;
        }
        
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 20px;
        }
        
        .footer-social {
            display: flex;
            gap: 12px;
        }
        
        .footer-social-link {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255,255,255,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            transition: all 0.3s ease;
        }
        
        .footer-social-link:hover {
            background: var(--primary);
            transform: translateY(-2px);
        }
        
        .footer-col-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 20px;
        }
        
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        
        .footer-link {
            font-size: 14px;
            transition: color 0.3s ease;
        }
        
        .footer-link:hover {
            color: var(--primary-light);
        }
        
        .footer-bottom {
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
        }
        
        .footer-copyright {
            color: rgba(255,255,255,0.4);
        }
        
        .footer-icp {
            color: rgba(255,255,255,0.4);
        }
        
        .footer-icp a:hover {
            color: var(--primary-light);
        }
        
        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        @keyframes fadeInRight {
            from {
                opacity: 0;
                transform: translateX(30px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }
        
        @keyframes float {
            0%, 100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-12px);
            }
        }
        
        @keyframes pulse {
            0%, 100% {
                opacity: 1;
            }
            50% {
                opacity: 0.5;
            }
        }
        
        .reveal {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        
        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }
        
        /* Responsive */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 44px;
            }
            
            .section-title {
                font-size: 36px;
            }
            
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .task-types-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        
        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }
            
            .nav-menu {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                padding: 20px 24px;
                gap: 16px;
                box-shadow: var(--shadow-md);
            }
            
            .nav-menu.active {
                display: flex;
            }
            
            .mobile-menu-btn {
                display: flex;
            }
            
            .nav-cta .btn {
                padding: 10px 20px;
                font-size: 14px;
            }
            
            .hero {
                padding: 110px 0 60px;
            }
            
            .hero-container {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            
            .hero-title {
                font-size: 36px;
            }
            
            .hero-desc {
                font-size: 16px;
            }
            
            .hero-visual {
                order: -1;
            }
            
            .phone-mockup {
                width: 260px;
                height: 520px;
            }
            
            .floating-card-1 {
                left: 0;
            }
            
            .floating-card-2 {
                right: 0;
            }
            
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 30px;
            }
            
            .stat-item:not(:last-child)::after {
                display: none;
            }
            
            .stat-number {
                font-size: 32px;
            }
            
            .section-title {
                font-size: 28px;
            }
            
            .section-subtitle {
                font-size: 16px;
            }
            
            .features-grid {
                grid-template-columns: 1fr;
            }
            
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            
            .steps-grid::before {
                display: none;
            }
            
            .task-types-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            
            .testimonials-grid {
                grid-template-columns: 1fr;
            }
            
            .cta-title {
                font-size: 30px;
            }
            
            .cta-desc {
                font-size: 16px;
            }
            
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            
            .btn-lg {
                padding: 14px 28px;
                font-size: 16px;
            }
        }
        
        /* App Preview */
        .app-preview {
            background: var(--white);
        }
        
        .app-preview-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        
        .app-preview-item {
            text-align: center;
        }
        
        .app-preview-frame {
            border-radius: 32px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 8px solid var(--dark);
            margin-bottom: 16px;
            transition: transform 0.4s ease, box-shadow 0.4s ease;
            aspect-ratio: 9 / 16;
            background: var(--dark);
        }
        
        .app-preview-item:hover .app-preview-frame {
            transform: translateY(-8px);
            box-shadow: var(--shadow-xl);
        }
        
        .app-preview-frame img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        
        .app-preview-label {
            font-size: 16px;
            font-weight: 600;
            color: var(--gray-700);
        }
        
        @media (max-width: 480px) {
            .hero-title {
                font-size: 30px;
            }
            
            .hero-cta {
                flex-direction: column;
            }
            
            .hero-cta .btn {
                width: 100%;
            }
            
            .hero-features {
                flex-direction: column;
                gap: 12px;
            }
            
            .task-types-grid {
                grid-template-columns: 1fr;
            }
            
            .stats-grid {
                grid-template-columns: 1fr;
            }
            
            .app-preview-grid {
                grid-template-columns: 1fr;
                max-width: 260px;
                margin: 0 auto;
            }
        }
        
        @media (min-width: 481px) and (max-width: 1024px) {
            .app-preview-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
                max-width: 600px;
                margin: 0 auto;
            }
        }