/* ===== CSS Reset & Variables ===== */
        *, *::before, *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --primary: #ff6b35;
            --primary-dark: #e85d2c;
            --primary-light: #ff8c5a;
            --secondary: #1a1a2e;
            --accent: #ff2d55;
            --gradient-1: linear-gradient(135deg, #ff6b35 0%, #ff2d55 100%);
            --gradient-2: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            --gradient-hero: linear-gradient(135deg, #ff6b35 0%, #ff4757 40%, #ff2d55 100%);
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #8888a0;
            --bg-white: #ffffff;
            --bg-light: #f8f9fc;
            --bg-card: #ffffff;
            --border: #e8e8f0;
            --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 8px 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;
            --max-width: 1200px;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 80px;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            color: var(--text-primary);
            background: var(--bg-white);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: inherit; }
        ul, ol { list-style: none; }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Animations ===== */
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }

        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }

        @keyframes float {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-12px); }
        }

        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }

        @keyframes shimmer {
            0% { background-position: -200% center; }
            100% { background-position: 200% center; }
        }

        @keyframes slideDown {
            from { opacity: 0; transform: translateY(-10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .animate-on-scroll {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .animate-on-scroll.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== Header / Navigation ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0,0,0,0.06);
            transition: all 0.3s ease;
        }

        .header.scrolled {
            box-shadow: var(--shadow-sm);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--text-primary);
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--gradient-1);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 900;
            font-size: 0.85rem;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .nav-links a {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: color 0.2s;
            position: relative;
        }

        .nav-links a:hover {
            color: var(--primary);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--gradient-1);
            transition: width 0.3s ease;
            border-radius: 2px;
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .nav-download-btn {
            background: var(--gradient-1);
            color: white !important;
            padding: 10px 24px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: transform 0.2s, box-shadow 0.2s;
        }

        .nav-download-btn:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 15px rgba(255,107,53,0.4);
        }

        .nav-download-btn::after { display: none !important; }

        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 5px;
        }

        .mobile-toggle span {
            width: 24px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        /* ===== Hero Section ===== */
        .hero {
            position: relative;
            background: var(--gradient-hero);
            padding: 140px 0 100px;
            overflow: hidden;
            min-height: 600px;
            display: flex;
            align-items: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 800px;
            height: 800px;
            background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
            border-radius: 50%;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
            border-radius: 50%;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hero-content {
            animation: fadeInUp 0.8s ease;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.18);
            backdrop-filter: blur(10px);
            padding: 8px 18px;
            border-radius: 50px;
            color: white;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 24px;
            border: 1px solid rgba(255,255,255,0.2);
        }

        .hero-badge-dot {
            width: 8px;
            height: 8px;
            background: #4ade80;
            border-radius: 50%;
            animation: pulse 2s infinite;
        }

        .hero h1 {
            font-size: 3.5rem;
            font-weight: 900;
            color: white;
            line-height: 1.1;
            margin-bottom: 10px;
            letter-spacing: -0.02em;
        }

        .hero h1 span {
            display: block;
            font-size: 1.3rem;
            font-weight: 500;
            opacity: 0.9;
            margin-top: 12px;
            letter-spacing: 0;
        }

        .hero-description {
            color: rgba(255,255,255,0.9);
            font-size: 1.1rem;
            line-height: 1.7;
            margin: 20px 0 32px;
            max-width: 520px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-download {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: white;
            color: var(--primary);
            padding: 16px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            box-shadow: 0 8px 30px rgba(0,0,0,0.15);
            border: none;
            cursor: pointer;
        }

        .btn-download:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(0,0,0,0.2);
        }

        .btn-download svg {
            width: 22px;
            height: 22px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: white;
            padding: 16px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid rgba(255,255,255,0.35);
            transition: all 0.3s ease;
            background: rgba(255,255,255,0.08);
        }

        .btn-secondary:hover {
            background: rgba(255,255,255,0.15);
            border-color: rgba(255,255,255,0.6);
        }

        .hero-trust {
            display: flex;
            align-items: center;
            gap: 24px;
            margin-top: 36px;
            flex-wrap: wrap;
        }

        .trust-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255,255,255,0.9);
            font-size: 0.85rem;
            font-weight: 500;
        }

        .trust-icon {
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
            animation: fadeIn 1s ease 0.3s both;
        }

        .phone-mockup {
            position: relative;
            width: 280px;
            animation: float 6s ease-in-out infinite;
        }

        .phone-frame {
            background: #1a1a2e;
            border-radius: 36px;
            padding: 12px;
            box-shadow: 0 30px 80px rgba(0,0,0,0.3), 0 0 0 2px rgba(255,255,255,0.1);
            position: relative;
        }

        .phone-screen {
            background: linear-gradient(180deg, #2a2a3e 0%, #1a1a2e 100%);
            border-radius: 26px;
            overflow: hidden;
            aspect-ratio: 9/19;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .phone-screen-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 30px 20px;
            text-align: center;
        }

        .phone-logo-icon {
            width: 64px;
            height: 64px;
            background: var(--gradient-1);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
        }

        .phone-logo-icon svg {
            width: 36px;
            height: 36px;
            color: white;
        }

        .phone-app-name {
            color: white;
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .phone-app-version {
            color: rgba(255,255,255,0.5);
            font-size: 0.75rem;
            margin-bottom: 20px;
        }

        .phone-features {
            display: flex;
            flex-direction: column;
            gap: 8px;
            width: 100%;
        }

        .phone-feature-bar {
            height: 6px;
            background: rgba(255,255,255,0.08);
            border-radius: 3px;
            overflow: hidden;
        }

        .phone-feature-bar-fill {
            height: 100%;
            background: var(--gradient-1);
            border-radius: 3px;
        }

        .phone-floating-badge {
            position: absolute;
            background: white;
            border-radius: 14px;
            padding: 10px 16px;
            box-shadow: var(--shadow-lg);
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-primary);
            z-index: 3;
        }

        .phone-floating-badge.top-right {
            top: -10px;
            right: -40px;
            animation: float 5s ease-in-out infinite 1s;
        }

        .phone-floating-badge.bottom-left {
            bottom: 40px;
            left: -50px;
            animation: float 5s ease-in-out infinite 0.5s;
        }

        .badge-icon-circle {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .badge-icon-circle.green { background: #ecfdf5; color: #10b981; }
        .badge-icon-circle.blue { background: #eff6ff; color: #3b82f6; }

        /* ===== Stats Bar ===== */
        .stats-bar {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            padding: 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            text-align: center;
        }

        .stat-item {
            padding: 28px 16px;
            border-right: 1px solid var(--border);
        }

        .stat-item:last-child { border-right: none; }

        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            background: var(--gradient-1);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }

        .stat-label {
            font-size: 0.85rem;
            color: var(--text-light);
            font-weight: 500;
            margin-top: 4px;
        }

        /* ===== Section Styles ===== */
        .section {
            padding: 80px 0;
        }

        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 56px;
        }

        .section-label {
            display: inline-block;
            background: linear-gradient(135deg, rgba(255,107,53,0.1), rgba(255,45,85,0.1));
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== About / What is CapCut ===== */
        .about-section {
            background: var(--bg-light);
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .about-content h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 20px;
            line-height: 1.2;
        }

        .about-content p {
            color: var(--text-secondary);
            margin-bottom: 16px;
            font-size: 1.05rem;
        }

        .about-highlights {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 28px;
        }

        .highlight-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 16px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: transform 0.2s, box-shadow 0.2s;
        }

        .highlight-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .highlight-icon {
            width: 40px;
            height: 40px;
            min-width: 40px;
            background: linear-gradient(135deg, rgba(255,107,53,0.1), rgba(255,45,85,0.1));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
        }

        .highlight-text h4 {
            font-size: 0.9rem;
            font-weight: 700;
            margin-bottom: 2px;
        }

        .highlight-text p {
            font-size: 0.8rem;
            color: var(--text-light);
            margin: 0;
        }

        .about-visual {
            position: relative;
        }

        .about-card {
            background: var(--gradient-hero);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            color: white;
            position: relative;
            overflow: hidden;
        }

        .about-card::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255,255,255,0.12) 0%, transparent 70%);
            border-radius: 50%;
        }

        .about-card h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 16px;
            position: relative;
        }

        .about-card p {
            opacity: 0.9;
            line-height: 1.7;
            position: relative;
            font-size: 0.95rem;
        }

        .about-card-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            margin-top: 28px;
            position: relative;
        }

        .about-card-stat {
            text-align: center;
            padding: 16px 8px;
            background: rgba(255,255,255,0.12);
            border-radius: var(--radius-md);
            backdrop-filter: blur(10px);
        }

        .about-card-stat strong {
            display: block;
            font-size: 1.4rem;
            font-weight: 800;
        }

        .about-card-stat span {
            font-size: 0.75rem;
            opacity: 0.8;
        }

        /* ===== Download Info Table ===== */
        .download-section {
            background: var(--bg-white);
        }

        .download-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }

        .download-table-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border);
        }

        .download-table-header {
            background: var(--gradient-1);
            color: white;
            padding: 20px 28px;
            font-size: 1.2rem;
            font-weight: 700;
        }

        .download-table {
            width: 100%;
            border-collapse: collapse;
        }

        .download-table tr {
            border-bottom: 1px solid var(--border);
            transition: background 0.2s;
        }

        .download-table tr:last-child { border-bottom: none; }
        .download-table tr:hover { background: var(--bg-light); }

        .download-table td {
            padding: 14px 28px;
            font-size: 0.95rem;
        }

        .download-table td:first-child {
            font-weight: 600;
            color: var(--text-primary);
            width: 45%;
        }

        .download-table td:last-child {
            color: var(--text-secondary);
        }

        .download-cta-card {
            background: var(--bg-light);
            border-radius: var(--radius-lg);
            padding: 40px;
            text-align: center;
            border: 2px dashed var(--border);
        }

        .download-cta-card h3 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .download-cta-card p {
            color: var(--text-secondary);
            margin-bottom: 28px;
            font-size: 1rem;
        }

        .btn-download-large {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            background: var(--gradient-1);
            color: white;
            padding: 18px 48px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.15rem;
            transition: all 0.3s ease;
            box-shadow: 0 8px 30px rgba(255,107,53,0.3);
            border: none;
            cursor: pointer;
        }

        .btn-download-large:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(255,107,53,0.4);
        }

        .download-security {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            margin-top: 20px;
            flex-wrap: wrap;
        }

        .security-badge {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            color: var(--text-light);
            font-weight: 500;
        }

        .security-badge svg {
            color: #10b981;
        }

        /* ===== Features Section ===== */
        .features-section {
            background: var(--bg-light);
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            transition: all 0.3s ease;
            border: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-1);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            font-size: 1.5rem;
        }

        .feature-icon.orange { background: linear-gradient(135deg, #fff3ed, #ffe8db); color: #ff6b35; }
        .feature-icon.pink { background: linear-gradient(135deg, #fff0f3, #ffe4ea); color: #ff2d55; }
        .feature-icon.blue { background: linear-gradient(135deg, #eef4ff, #dbe9ff); color: #3b82f6; }
        .feature-icon.green { background: linear-gradient(135deg, #ecfdf5, #d1fae5); color: #10b981; }
        .feature-icon.purple { background: linear-gradient(135deg, #f3f0ff, #e8e0ff); color: #8b5cf6; }
        .feature-icon.cyan { background: linear-gradient(135deg, #ecfeff, #cffafe); color: #06b6d4; }

        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .feature-card p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.6;
        }

        /* ===== How to Install ===== */
        .install-section {
            background: var(--bg-white);
        }

        .install-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .install-steps::before {
            content: '';
            position: absolute;
            top: 44px;
            left: 12.5%;
            right: 12.5%;
            height: 2px;
            background: var(--border);
            z-index: 0;
        }

        .step-card {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .step-number {
            width: 64px;
            height: 64px;
            background: var(--gradient-1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 800;
            font-size: 1.3rem;
            margin: 0 auto 20px;
            box-shadow: 0 4px 15px rgba(255,107,53,0.3);
            border: 4px solid white;
        }

        .step-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== Why Choose ===== */
        .why-section {
            background: var(--gradient-2);
            color: white;
        }

        .why-section .section-label {
            background: rgba(255,255,255,0.1);
            color: rgba(255,255,255,0.9);
        }

        .why-section .section-title {
            color: white;
        }

        .why-section .section-subtitle {
            color: rgba(255,255,255,0.7);
        }

        .why-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .why-card {
            background: rgba(255,255,255,0.06);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: var(--radius-lg);
            padding: 32px;
            transition: all 0.3s ease;
        }

        .why-card:hover {
            background: rgba(255,255,255,0.1);
            transform: translateY(-3px);
        }

        .why-card-header {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 14px;
        }

        .why-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            background: rgba(255,255,255,0.1);
        }

        .why-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
        }

        .why-card p {
            color: rgba(255,255,255,0.7);
            font-size: 0.92rem;
            line-height: 1.6;
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            background: var(--bg-light);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all 0.3s ease;
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            background: none;
            border: none;
            cursor: pointer;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            font-family: inherit;
            gap: 16px;
        }

        .faq-question:hover { color: var(--primary); }

        .faq-chevron {
            width: 24px;
            height: 24px;
            min-width: 24px;
            transition: transform 0.3s ease;
            color: var(--text-light);
        }

        .faq-item.active .faq-chevron {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--gradient-hero);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
            border-radius: 50%;
        }

        .cta-content {
            position: relative;
            z-index: 2;
        }

        .cta-content h2 {
            font-size: 2.5rem;
            font-weight: 800;
            color: white;
            margin-bottom: 16px;
        }

        .cta-content p {
            color: rgba(255,255,255,0.9);
            font-size: 1.15rem;
            max-width: 600px;
            margin: 0 auto 32px;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--secondary);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }

        .footer-brand .logo {
            color: white;
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            color: white;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col a {
            font-size: 0.9rem;
            transition: color 0.2s;
        }

        .footer-col a:hover { color: var(--primary-light); }

        .footer-bottom {
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.85rem;
        }

        .footer-disclaimer {
            background: rgba(255,255,255,0.04);
            margin: 0 -24px;
            padding: 20px 24px;
            border-radius: var(--radius-sm);
            font-size: 0.8rem;
            line-height: 1.6;
            color: rgba(255,255,255,0.4);
            margin-top: 24px;
        }

        /* ===== Back to Top ===== */
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 48px;
            height: 48px;
            background: var(--gradient-1);
            color: white;
            border: none;
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-md);
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.3s ease;
            z-index: 999;
        }

        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .back-to-top:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }

        /* ===== Mobile Responsive ===== */
        @media (max-width: 1024px) {
            .hero h1 { font-size: 2.8rem; }
            .features-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: white;
                flex-direction: column;
                padding: 24px;
                gap: 16px;
                box-shadow: var(--shadow-lg);
                border-top: 1px solid var(--border);
                animation: slideDown 0.3s ease;
            }

            .nav-links.open { display: flex; }
            .mobile-toggle { display: flex; }

            .hero {
                padding: 120px 0 60px;
                min-height: auto;
            }

            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
                text-align: center;
            }

            .hero h1 { font-size: 2.2rem; }
            .hero-description { margin: 16px auto 28px; }
            .hero-actions { justify-content: center; }
            .hero-trust { justify-content: center; }
            .hero-visual { order: -1; }

            .phone-mockup { width: 200px; }
            .phone-floating-badge { display: none; }

            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .stat-item { border-bottom: 1px solid var(--border); }

            .about-grid { grid-template-columns: 1fr; gap: 40px; }
            .download-wrapper { grid-template-columns: 1fr; }
            .features-grid { grid-template-columns: 1fr; }
            .why-grid { grid-template-columns: 1fr; }

            .install-steps {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .install-steps::before { display: none; }

            .section { padding: 60px 0; }
            .section-title { font-size: 2rem; }
            .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
        }

        @media (max-width: 480px) {
            .hero h1 { font-size: 1.8rem; }
            .btn-download { padding: 14px 28px; font-size: 1rem; }
            .install-steps { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr 1fr; }
            .about-highlights { grid-template-columns: 1fr; }
            .about-card-stats { grid-template-columns: 1fr; }
        }