/* ===== Variables ===== */
        :root {
            --primary: #6C5CE7;
            --primary-light: #A29BFE;
            --primary-soft: #F0EEFF;
            --primary-dark: #4834B5;
            --secondary: #FD79A8;
            --bg: #F8F9FE;
            --bg-white: #FFFFFF;
            --text-dark: #1E1A2F;
            --text-body: #3D3A4B;
            --text-muted: #8884A0;
            --border-light: #E9E8F0;
            --shadow-sm: 0 4px 16px rgba(108, 92, 231, 0.06);
            --shadow-md: 0 12px 40px rgba(108, 92, 231, 0.08);
            --shadow-lg: 0 24px 60px rgba(108, 92, 231, 0.12);
            --radius-lg: 28px;
            --radius-md: 18px;
            --radius-sm: 12px;
            --transition: 0.3s cubic-bezier(0.2, 0, 0, 1);
            --font: 'Inter', system-ui, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }

        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text-body);
            line-height: 1.6;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

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

        .container {
            max-width: 1160px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--primary-light);
            border-radius: 10px;
        }

        /* ===== Utility ===== */
        .section-tag {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 600;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 4px 18px;
            border-radius: 60px;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: clamp(1.8rem, 3.6vw, 2.8rem);
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--text-dark);
        }

        .section-title .highlight {
            color: var(--primary);
            position: relative;
        }

        .section-sub {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 520px;
            line-height: 1.7;
            margin-top: 8px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            padding: 14px 36px;
            border-radius: 60px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 8px 28px rgba(108, 92, 231, 0.25);
            font-family: var(--font);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 16px 48px rgba(108, 92, 231, 0.35);
            background: var(--primary-dark);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--bg-white);
            color: var(--text-dark);
            font-weight: 500;
            font-size: 1rem;
            padding: 14px 32px;
            border-radius: 60px;
            border: 1px solid var(--border-light);
            cursor: pointer;
            transition: var(--transition);
            font-family: var(--font);
            box-shadow: var(--shadow-sm);
        }

        .btn-secondary:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        /* ===== Header ===== */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 16px 0;
            transition: var(--transition);
            background: transparent;
        }

        header.scrolled {
            background: rgba(248, 249, 254, 0.92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            padding: 10px 0;
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--text-dark);
            letter-spacing: -0.02em;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 800;
            color: #fff;
            box-shadow: 0 4px 12px rgba(108, 92, 231, 0.2);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }

        .nav-links a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            position: relative;
        }

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

        .nav-links a:hover {
            color: var(--text-dark);
        }
        .nav-links a:hover::after {
            width: 100%;
        }

        .nav-cta {
            background: var(--primary);
            color: #fff !important;
            padding: 8px 24px;
            border-radius: 60px;
            font-weight: 600;
            box-shadow: 0 4px 16px rgba(108, 92, 231, 0.15);
        }

        .nav-cta::after {
            display: none !important;
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(108, 92, 231, 0.25);
            background: var(--primary-dark);
            color: #fff !important;
        }

        /* Hamburger */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 6px;
            background: none;
            border: none;
        }

        .hamburger span {
            width: 26px;
            height: 2.5px;
            background: var(--text-dark);
            border-radius: 4px;
            transition: var(--transition);
            display: block;
        }

        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Hero ===== */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 120px 0 80px;
            background: linear-gradient(150deg, #F4F2FF 0%, #FCFAFE 70%);
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(108, 92, 231, 0.04), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hero-content {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            padding: 6px 20px 6px 12px;
            border-radius: 60px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--text-muted);
            width: fit-content;
            box-shadow: var(--shadow-sm);
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #34D399;
            box-shadow: 0 0 16px rgba(52, 211, 153, 0.3);
            animation: pulseDot 2s infinite;
        }

        @keyframes pulseDot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(0.8); }
        }

        .hero-title {
            font-size: clamp(2.4rem, 5vw, 4rem);
            font-weight: 800;
            line-height: 1.08;
            letter-spacing: -0.03em;
            color: var(--text-dark);
        }

        .hero-title .gradient-text {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 460px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 4px;
        }

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

        .hero-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            width: 100%;
            max-width: 460px;
            box-shadow: var(--shadow-md);
            position: relative;
        }

        .hero-card .quote {
            font-size: 1rem;
            font-style: italic;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .hero-card .quote::before {
            content: '"';
            font-size: 2rem;
            color: var(--primary-light);
            font-style: normal;
        }
        .hero-card .quote::after {
            content: '"';
            font-size: 2rem;
            color: var(--primary-light);
            font-style: normal;
        }

        .hero-card .author {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .hero-card .avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 1rem;
        }

        .hero-card .info .name {
            font-weight: 600;
            color: var(--text-dark);
        }
        .hero-card .info .role {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .floating-badge {
            position: absolute;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: 60px;
            padding: 8px 18px;
            font-size: 0.75rem;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: var(--shadow-sm);
            animation: floatBadge 5s ease-in-out infinite;
            z-index: 3;
            color: var(--text-dark);
        }

        .floating-badge:nth-child(2) {
            top: -8%;
            right: -8%;
            animation-delay: 0.6s;
        }

        .floating-badge:nth-child(3) {
            bottom: 8%;
            left: -10%;
            animation-delay: 1.2s;
        }

        .floating-badge .icon {
            font-size: 1rem;
        }

        @keyframes floatBadge {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-8px); }
        }

        /* ===== Stats Bar ===== */
        #stats-bar {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
            padding: 40px 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
        }

        .stat-item {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .stat-item .number {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
        }

        .stat-item .label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        .stat-item .icon {
            font-size: 1.8rem;
            margin-bottom: 4px;
        }

        /* ===== Services ===== */
        #services {
            padding: 80px 0;
            background: var(--bg);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-top: 40px;
        }

        .service-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }

        .service-card .icon {
            font-size: 2.2rem;
            margin-bottom: 14px;
            display: block;
        }

        .service-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 6px;
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .service-card .link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 16px;
            color: var(--primary);
            font-weight: 500;
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .service-card .link:hover {
            gap: 12px;
        }

        /* ===== Process ===== */
        #process {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
            padding: 80px 0;
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-top: 40px;
        }

        .process-step {
            text-align: center;
            padding: 20px 12px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }

        .process-step .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            font-weight: 700;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            transition: var(--transition);
        }

        .process-step:hover .step-number {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }

        .process-step h4 {
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 4px;
        }

        .process-step p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== Case Studies ===== */
        #cases {
            padding: 80px 0;
            background: var(--bg);
        }

        .cases-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            margin-top: 40px;
        }

        .case-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
        }

        .case-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .case-card .tag {
            display: inline-block;
            font-size: 0.65rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 4px 16px;
            border-radius: 60px;
            margin-bottom: 12px;
            align-self: flex-start;
        }

        .case-card h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 4px;
        }

        .case-card .desc {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            flex: 1;
        }

        .case-card .metric {
            display: flex;
            align-items: baseline;
            gap: 8px;
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--border-light);
        }

        .case-card .metric .big {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
        }

        .case-card .metric .label {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .case-card .quote {
            font-style: italic;
            color: var(--text-body);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-top: 12px;
            padding: 12px 16px;
            background: var(--primary-soft);
            border-radius: var(--radius-sm);
            border-left: 4px solid var(--primary);
        }

        /* ===== FAQ ===== */
        #faq {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
            padding: 80px 0;
        }

        .faq-list {
            max-width: 780px;
            margin: 32px auto 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--primary-light);
        }

        .faq-question {
            width: 100%;
            padding: 18px 24px;
            background: none;
            border: none;
            text-align: left;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-family: var(--font);
            transition: var(--transition);
        }

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

        .faq-question .arrow {
            font-size: 1.2rem;
            transition: var(--transition);
            color: var(--text-muted);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        #cta {
            padding: 100px 0;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        #cta::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255,255,255,0.05), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .cta-content h2 {
            font-size: clamp(1.8rem, 3.4vw, 2.8rem);
            font-weight: 700;
            letter-spacing: -0.02em;
        }

        .cta-content p {
            font-size: 1.05rem;
            color: rgba(255,255,255,0.8);
            max-width: 500px;
            margin: 12px auto 32px;
        }

        .cta-content .btn-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }

        .btn-white {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 8px 28px rgba(0,0,0,0.1);
        }

        .btn-white:hover {
            background: var(--primary-soft);
            color: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 16px 48px rgba(0,0,0,0.15);
        }

        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255,255,255,0.3);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: rgba(255,255,255,0.08);
            border-color: rgba(255,255,255,0.5);
            transform: translateY(-2px);
        }

        /* ===== Footer ===== */
        footer {
            background: var(--bg);
            padding: 32px 0 24px;
            border-top: 1px solid var(--border-light);
        }

        .footer-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        .footer-left {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .footer-left .logo {
            font-size: 1.1rem;
        }

        .footer-left .logo .logo-icon {
            width: 32px;
            height: 32px;
            font-size: 0.9rem;
        }

        .footer-left p {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .footer-links {
            display: flex;
            gap: 24px;
            list-style: none;
        }

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.85rem;
            transition: var(--transition);
        }

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

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

        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            border: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: var(--transition);
            font-size: 0.9rem;
        }

        .footer-social a:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-soft);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cases-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 868px) {
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: var(--bg-white);
                flex-direction: column;
                padding: 80px 32px 40px;
                gap: 24px;
                align-items: flex-start;
                transition: var(--transition);
                border-left: 1px solid var(--border-light);
                box-shadow: -8px 0 40px rgba(0,0,0,0.04);
            }

            .nav-links.open {
                right: 0;
            }

            .nav-links a {
                font-size: 1.1rem;
            }

            .nav-cta {
                margin-top: 8px;
            }

            .hamburger {
                display: flex;
                z-index: 1001;
            }

            .hero-grid {
                grid-template-columns: 1fr;
                text-align: center;
                gap: 30px;
            }

            .hero-content {
                align-items: center;
            }

            .hero-desc {
                max-width: 100%;
            }

            .hero-actions {
                justify-content: center;
            }

            .hero-visual {
                order: -1;
            }

            .hero-card {
                max-width: 100%;
            }

            .floating-badge {
                display: none;
            }

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

            .services-grid {
                grid-template-columns: 1fr;
                max-width: 420px;
                margin-left: auto;
                margin-right: auto;
            }

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

            .cases-grid {
                max-width: 480px;
                margin-left: auto;
                margin-right: auto;
            }

            .footer-inner {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }

            .footer-left {
                flex-direction: column;
                align-items: center;
            }

            .footer-links {
                flex-wrap: wrap;
                justify-content: center;
            }
        }

        @media (max-width: 480px) {
            .hero-title {
                font-size: 2rem;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .stat-item .number {
                font-size: 1.8rem;
            }

            .process-grid {
                grid-template-columns: 1fr;
                max-width: 300px;
                margin-left: auto;
                margin-right: auto;
            }

            .btn-primary,
            .btn-secondary {
                padding: 12px 24px;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }

            .hero-actions {
                flex-direction: column;
                width: 100%;
            }

            .container {
                padding: 0 16px;
            }

            section {
                padding: 56px 0;
            }

            .faq-question {
                font-size: 0.9rem;
                padding: 14px 18px;
            }

            .faq-answer {
                font-size: 0.9rem;
            }
        }