/* roulang page: index */
:root {
            --color-primary: #FF4D2E;
            --color-primary-dark: #E6451F;
            --color-primary-light: #FF6B52;
            --color-secondary: #1C1C1E;
            --color-accent: #00C896;
            --color-accent-dark: #00A87D;
            --color-bg: #FFFFFF;
            --color-bg-alt: #F8F9FA;
            --color-bg-dark: #1C1C1E;
            --color-text: #333333;
            --color-text-muted: #6B7280;
            --color-text-light: #FFFFFF;
            --color-border: #E5E7EB;
            --color-border-light: #F0F0F0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --container-width: 1140px;
            --section-padding: 80px;
            --section-padding-mobile: 48px;
            --nav-height: 68px;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --transition-slow: 0.5s ease;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: var(--nav-height);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            border: none;
            outline: none;
            font-family: inherit;
        }

        input {
            font-family: inherit;
            outline: none;
        }

        ul {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== NAVIGATION ========== */
        .nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: background var(--transition-normal), box-shadow var(--transition-normal);
            border-bottom: 1px solid transparent;
        }

        .nav.scrolled {
            background: #FFFFFF;
            box-shadow: var(--shadow-md);
            border-bottom: 1px solid var(--color-border-light);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--color-secondary);
            letter-spacing: -0.5px;
            white-space: nowrap;
            z-index: 1001;
        }

        .nav-logo .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 18px;
            position: relative;
        }

        .nav-logo .logo-icon i {
            position: relative;
            z-index: 1;
        }

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

        .nav-links a {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-secondary);
            position: relative;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: width var(--transition-normal);
        }

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

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

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-primary);
            color: #fff !important;
            padding: 10px 20px !important;
            border-radius: var(--radius-sm);
            font-weight: 600 !important;
            font-size: 14px !important;
            transition: background var(--transition-fast), transform var(--transition-fast) !important;
        }

        .nav-cta-btn:hover {
            background: var(--color-primary-dark);
            transform: translateY(-1px);
        }

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

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            z-index: 1001;
            padding: 8px;
            background: none;
            border: none;
            width: 40px;
            height: 32px;
            justify-content: center;
            align-items: center;
        }

        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--color-secondary);
            border-radius: 3px;
            transition: all var(--transition-normal);
            transform-origin: center;
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }

        .hamburger.active span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        .mobile-menu-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            opacity: 0;
            transition: opacity var(--transition-normal);
        }

        .mobile-menu-overlay.active {
            opacity: 1;
        }

        .mobile-menu {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100vh;
            background: #fff;
            z-index: 1000;
            padding: 90px 32px 40px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            transition: right var(--transition-normal);
            box-shadow: var(--shadow-xl);
            overflow-y: auto;
        }

        .mobile-menu.active {
            right: 0;
        }

        .mobile-menu a {
            display: block;
            padding: 14px 16px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }

        .mobile-menu a:hover {
            background: var(--color-bg-alt);
            color: var(--color-primary);
        }

        .mobile-menu .mobile-cta {
            margin-top: 16px;
            background: var(--color-primary);
            color: #fff !important;
            text-align: center;
            border-radius: var(--radius-sm);
            padding: 14px 20px !important;
            font-weight: 700 !important;
        }

        /* ========== HERO SECTION ========== */
        .hero {
            position: relative;
            padding: 140px 0 100px;
            overflow: hidden;
            background: linear-gradient(180deg, #FFF8F6 0%, #FFFFFF 40%, #FFFFFF 100%);
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -180px;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 77, 46, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -120px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0, 200, 150, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .hero-content {
            max-width: 540px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 77, 46, 0.08);
            color: var(--color-primary);
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 24px;
            letter-spacing: 0.3px;
        }

        .hero-badge .badge-dot {
            width: 8px;
            height: 8px;
            background: var(--color-primary);
            border-radius: 50%;
            animation: pulse-dot 1.8s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.4;
                transform: scale(1.8);
            }
        }

        .hero h1 {
            font-size: 48px;
            font-weight: 900;
            line-height: 1.2;
            color: var(--color-secondary);
            margin-bottom: 20px;
            letter-spacing: -1px;
        }

        .hero h1 .highlight {
            color: var(--color-primary);
            position: relative;
        }

        .hero h1 .highlight::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            width: 100%;
            height: 10px;
            background: rgba(255, 77, 46, 0.15);
            border-radius: 4px;
            z-index: -1;
        }

        .hero-subtitle {
            font-size: 17px;
            color: var(--color-text-muted);
            line-height: 1.75;
            margin-bottom: 32px;
            max-width: 460px;
        }

        .hero-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            font-size: 16px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all var(--transition-normal);
            white-space: nowrap;
            letter-spacing: 0.2px;
        }

        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 77, 46, 0.3);
        }

        .btn-primary:hover {
            background: var(--color-primary-dark);
            box-shadow: 0 6px 24px rgba(255, 77, 46, 0.4);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
        }

        .btn-outline:hover {
            background: var(--color-primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-lg {
            padding: 16px 32px;
            font-size: 17px;
            border-radius: var(--radius-md);
        }

        .btn-accent {
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(0, 200, 150, 0.3);
        }

        .btn-accent:hover {
            background: var(--color-accent-dark);
            box-shadow: 0 6px 24px rgba(0, 200, 150, 0.4);
            transform: translateY(-2px);
        }

        .hero-image {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-image-wrapper {
            position: relative;
            animation: float 6s ease-in-out infinite;
        }

        @keyframes float {
            0%,
            100% {
                transform: translateY(0);
            }
            25% {
                transform: translateY(-12px);
            }
            50% {
                transform: translateY(-4px);
            }
            75% {
                transform: translateY(-16px);
            }
        }

        .hero-image img {
            width: 100%;
            max-width: 420px;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-xl);
            position: relative;
            z-index: 1;
        }

        .hero-image-glow {
            position: absolute;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 77, 46, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            z-index: 0;
            animation: glow-pulse 3s ease-in-out infinite;
        }

        @keyframes glow-pulse {
            0%,
            100% {
                transform: translate(-50%, -50%) scale(1);
                opacity: 0.6;
            }
            50% {
                transform: translate(-50%, -50%) scale(1.3);
                opacity: 1;
            }
        }

        /* ========== SECTION COMMONS ========== */
        section {
            padding: var(--section-padding) 0;
            position: relative;
        }

        section.bg-alt {
            background: var(--color-bg-alt);
        }

        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--color-primary);
            margin-bottom: 12px;
        }

        .section-header h2 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-secondary);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .section-header p {
            font-size: 17px;
            color: var(--color-text-muted);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .section-divider {
            width: 50px;
            height: 4px;
            background: var(--color-primary);
            border-radius: 2px;
            margin: 16px auto 0;
        }

        /* ========== FEATURES SECTION ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 24px 28px;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }

        .feature-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--color-primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-normal);
            border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        }

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

        .feature-card:hover::after {
            transform: scaleX(1);
        }

        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            font-size: 22px;
            color: #fff;
            flex-shrink: 0;
        }

        .feature-icon.orange {
            background: linear-gradient(135deg, #FF4D2E, #FF6B52);
        }
        .feature-icon.teal {
            background: linear-gradient(135deg, #00C896, #00D9A1);
        }
        .feature-icon.purple {
            background: linear-gradient(135deg, #7C3AED, #9B5DE5);
        }
        .feature-icon.blue {
            background: linear-gradient(135deg, #3B82F6, #60A5FA);
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--color-secondary);
            margin-bottom: 10px;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.65;
        }

        /* ========== SCENARIOS SECTION ========== */
        .scenario-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            margin-bottom: 64px;
        }

        .scenario-row:last-child {
            margin-bottom: 0;
        }

        .scenario-row.reverse .scenario-image {
            order: 1;
        }
        .scenario-row.reverse .scenario-text {
            order: 0;
        }

        .scenario-image {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .scenario-image img {
            width: 100%;
            border-radius: var(--radius-xl);
            object-fit: cover;
            aspect-ratio: 16/11;
        }

        .scenario-text {
            max-width: 480px;
        }

        .scenario-text h3 {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-secondary);
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }

        .scenario-text p {
            font-size: 16px;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .scenario-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .scenario-tag {
            display: inline-block;
            padding: 6px 14px;
            background: rgba(28, 28, 30, 0.06);
            color: var(--color-secondary);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.2px;
        }

        /* ========== STATS SECTION ========== */
        .stats-section {
            background: var(--color-secondary);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -100px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(255, 77, 46, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            z-index: 1;
        }

        .stat-item {
            text-align: center;
            padding: 24px 16px;
        }

        .stat-number {
            font-size: 48px;
            font-weight: 900;
            color: var(--color-primary);
            letter-spacing: -1px;
            line-height: 1;
            margin-bottom: 8px;
        }

        .stat-suffix {
            color: var(--color-primary);
            font-weight: 700;
        }

        .stat-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
            letter-spacing: 0.3px;
        }

        .trust-badges {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 48px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .trust-badge {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.8);
            font-size: 14px;
            font-weight: 500;
        }

        .trust-badge i {
            font-size: 20px;
            color: var(--color-accent);
        }

        /* ========== PRICING SECTION ========== */
        .pricing-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            max-width: 800px;
            margin: 0 auto;
        }

        .pricing-card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 40px 32px;
            box-shadow: var(--shadow-md);
            border: 2px solid var(--color-border-light);
            transition: all var(--transition-normal);
            position: relative;
            text-align: center;
            display: flex;
            flex-direction: column;
        }

        .pricing-card.featured {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-lg), 0 0 0 8px rgba(0, 200, 150, 0.06);
            transform: scale(1.03);
            z-index: 1;
        }

        .pricing-card:hover {
            box-shadow: var(--shadow-xl);
            transform: translateY(-4px);
        }
        .pricing-card.featured:hover {
            transform: scale(1.03) translateY(-4px);
        }

        .pricing-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-accent);
            color: #fff;
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .pricing-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-secondary);
            margin-bottom: 8px;
        }

        .pricing-price {
            font-size: 42px;
            font-weight: 900;
            color: var(--color-secondary);
            margin: 16px 0 8px;
            letter-spacing: -1px;
        }

        .pricing-price .currency {
            font-size: 22px;
            vertical-align: super;
            margin-right: 2px;
        }
        .pricing-price .period {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-muted);
        }

        .pricing-features {
            list-style: none;
            text-align: left;
            margin: 24px 0 32px;
            flex: 1;
        }

        .pricing-features li {
            padding: 8px 0;
            font-size: 15px;
            color: var(--color-text);
            display: flex;
            align-items: center;
            gap: 10px;
            border-bottom: 1px solid var(--color-border-light);
        }

        .pricing-features li:last-child {
            border-bottom: none;
        }

        .pricing-features li i {
            color: var(--color-accent);
            font-size: 14px;
            flex-shrink: 0;
        }

        .pricing-card .btn {
            width: 100%;
            justify-content: center;
        }

        /* ========== FAQ SECTION ========== */
        .faq-list {
            max-width: 720px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--color-border-light);
            overflow: hidden;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            cursor: pointer;
            font-size: 17px;
            font-weight: 600;
            color: var(--color-secondary);
            transition: color var(--transition-fast);
            gap: 16px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: inherit;
        }

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

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all var(--transition-normal);
            font-size: 14px;
            color: var(--color-text-muted);
        }

        .faq-item.active .faq-icon {
            background: var(--color-primary);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }

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

        .faq-answer-inner {
            padding: 0 0 20px;
            font-size: 15px;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, #FF4D2E 0%, #E6451F 50%, #D03A16 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -150px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -100px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .btn {
            background: #fff;
            color: var(--color-primary);
            font-weight: 700;
            font-size: 17px;
            padding: 16px 36px;
            border-radius: var(--radius-md);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
            transition: all var(--transition-normal);
        }

        .cta-section .btn:hover {
            background: #f0f0f0;
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.3);
        }

        /* ========== FOOTER ========== */
        .footer {
            background: var(--color-bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }

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

        .footer-brand {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-social {
            display: flex;
            gap: 14px;
            margin-top: 20px;
        }

        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.7);
            font-size: 16px;
            transition: all var(--transition-fast);
        }

        .footer-social a:hover {
            background: var(--color-primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .footer-subscribe {
            display: flex;
            gap: 8px;
            margin-top: 8px;
        }

        .footer-subscribe input {
            flex: 1;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
            font-size: 14px;
            transition: border-color var(--transition-fast);
            min-width: 0;
        }

        .footer-subscribe input:focus {
            border-color: var(--color-primary);
        }
        .footer-subscribe input::placeholder {
            color: rgba(255, 255, 255, 0.35);
        }

        .footer-subscribe button {
            padding: 10px 18px;
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            transition: background var(--transition-fast);
            white-space: nowrap;
        }

        .footer-subscribe button:hover {
            background: var(--color-primary-dark);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .scenario-row {
                gap: 36px;
            }
            .scenario-text h3 {
                font-size: 24px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .stat-number {
                font-size: 40px;
            }
            .pricing-grid {
                max-width: 100%;
                gap: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-padding: 48px;
            }
            .nav-links {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-menu-overlay {
                display: block;
            }
            .hero {
                padding: 110px 0 56px;
            }
            .hero .container {
                grid-template-columns: 1fr;
                gap: 40px;
                text-align: center;
            }
            .hero-content {
                max-width: 100%;
                order: 0;
            }
            .hero-subtitle {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-buttons {
                justify-content: center;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero-image {
                order: 1;
            }
            .hero-image img {
                max-width: 280px;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .scenario-row {
                grid-template-columns: 1fr;
                gap: 28px;
                margin-bottom: 48px;
            }
            .scenario-row.reverse .scenario-image {
                order: 0;
            }
            .scenario-row.reverse .scenario-text {
                order: 0;
            }
            .scenario-text {
                max-width: 100%;
                text-align: center;
            }
            .scenario-tags {
                justify-content: center;
            }
            .scenario-text h3 {
                font-size: 22px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-number {
                font-size: 34px;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                max-width: 400px;
                margin: 0 auto;
            }
            .pricing-card.featured {
                transform: scale(1);
            }
            .pricing-card.featured:hover {
                transform: translateY(-4px);
            }
            .section-header h2 {
                font-size: 28px;
            }
            .cta-section h2 {
                font-size: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                text-align: center;
            }
            .footer-brand .footer-logo {
                justify-content: center;
            }
            .footer-social {
                justify-content: center;
            }
            .footer-subscribe {
                max-width: 360px;
                margin: 8px auto 0;
            }
            .trust-badges {
                gap: 20px;
            }
            .btn {
                padding: 12px 22px;
                font-size: 15px;
            }
            .btn-lg {
                padding: 14px 26px;
                font-size: 16px;
            }
            .faq-question {
                font-size: 15px;
                padding: 16px 0;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 26px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: center;
                width: 100%;
            }
            .hero-buttons .btn {
                width: 100%;
                justify-content: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-number {
                font-size: 28px;
            }
            .stat-label {
                font-size: 13px;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .pricing-card {
                padding: 28px 20px;
            }
            .pricing-price {
                font-size: 34px;
            }
            .feature-card {
                padding: 24px 18px;
            }
            .cta-section h2 {
                font-size: 24px;
            }
            .nav-logo {
                font-size: 18px;
            }
            .nav-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }
            .mobile-menu {
                width: 280px;
                right: -280px;
            }
        }