/* roulang page: index */
:root {
            --color-bg: #0A0A0A;
            --color-bg-alt: #120A1F;
            --color-deep-purple: #1E0F2D;
            --color-card-bg: #1A1025;
            --color-card-border: rgba(109, 40, 217, 0.25);
            --color-purple: #6D28D9;
            --color-pink: #F72585;
            --color-cyan: #00F0FF;
            --color-orange: #FF6B35;
            --color-text: #D1D5DB;
            --color-text-light: #FFFFFF;
            --color-text-muted: #9CA3AF;
            --gradient-main: linear-gradient(135deg, #6D28D9 0%, #F72585 100%);
            --gradient-hero-bg: radial-gradient(ellipse at center, rgba(30, 15, 45, 0.7) 0%, rgba(10, 10, 10, 0.95) 70%);
            --shadow-card: 0 8px 32px rgba(109, 40, 217, 0.15);
            --shadow-card-hover: 0 12px 40px rgba(247, 37, 133, 0.25);
            --shadow-glow-purple: 0 0 60px rgba(109, 40, 217, 0.3);
            --shadow-glow-pink: 0 0 60px rgba(247, 37, 133, 0.25);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 50px;
            --radius-full: 9999px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 96px;
            --spacing-3xl: 140px;
            --max-width: 1280px;
            --font-family-cn: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-family-en: 'Inter', 'Orbitron', 'Rajdhani', sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 80px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family-cn);
            font-size: 1rem;
            font-weight: 400;
            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: var(--transition-fast);
        }
        a:focus-visible {
            outline: 2px solid var(--color-cyan);
            outline-offset: 3px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            transition: var(--transition-smooth);
        }
        button:focus-visible {
            outline: 2px solid var(--color-cyan);
            outline-offset: 3px;
            border-radius: 4px;
        }
        input,
        textarea {
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition-fast);
        }
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-cyan);
            outline-offset: 2px;
        }
        ul {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.2;
            font-weight: 700;
            color: var(--color-text-light);
        }

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

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            padding: 16px 0;
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth), padding var(--transition-smooth);
            background: rgba(10, 10, 10, 0.45);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            border-bottom: 1px solid rgba(109, 40, 217, 0.08);
        }
        .site-header.scrolled {
            background: rgba(18, 10, 31, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.6);
            padding: 10px 0;
            border-bottom: 1px solid rgba(109, 40, 217, 0.2);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-family-en);
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: 0.03em;
            color: #fff;
            white-space: nowrap;
            text-decoration: none;
            transition: var(--transition-fast);
        }
        .logo-link:hover {
            color: var(--color-cyan);
            text-shadow: 0 0 20px rgba(0, 240, 255, 0.5);
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            position: relative;
        }
        .logo-icon .lightning {
            width: 18px;
            height: 28px;
            background: var(--gradient-main);
            clip-path: polygon(55% 0%, 20% 48%, 42% 48%, 38% 100%, 78% 50%, 55% 50%, 62% 0%);
            transform: rotate(5deg);
            animation: logoPulse 2.5s ease-in-out infinite;
        }
        @keyframes logoPulse {
            0%,
            100% {
                filter: brightness(1);
            }
            50% {
                filter: brightness(1.5) drop-shadow(0 0 8px rgba(247, 37, 133, 0.7));
            }
        }
        .logo-text {
            background: linear-gradient(135deg, #fff 0%, #e0d5f5 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            font-weight: 900;
            letter-spacing: 0.04em;
        }

        /* Desktop Nav */
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-desktop a {
            font-size: 0.95rem;
            font-weight: 500;
            color: #c9c5d4;
            letter-spacing: 0.02em;
            position: relative;
            padding: 6px 0;
            transition: var(--transition-fast);
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--gradient-main);
            border-radius: 2px;
            transition: width var(--transition-smooth);
        }
        .nav-desktop a:hover,
        .nav-desktop a.active {
            color: #fff;
        }
        .nav-desktop a:hover::after,
        .nav-desktop a.active::after {
            width: 100%;
        }
        .nav-cta-btn {
            display: inline-block;
            background: var(--gradient-main);
            color: #fff !important;
            padding: 10px 22px !important;
            border-radius: var(--radius-xl);
            font-weight: 600 !important;
            letter-spacing: 0.03em;
            font-size: 0.9rem !important;
            transition: var(--transition-smooth);
            box-shadow: 0 4px 16px rgba(109, 40, 217, 0.35);
        }
        .nav-cta-btn:hover {
            box-shadow: 0 6px 24px rgba(247, 37, 133, 0.5);
            transform: translateY(-2px);
            color: #fff !important;
        }
        .nav-cta-btn::after {
            display: none !important;
        }

        /* Mobile Hamburger */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 6px;
            padding: 8px;
            z-index: 1001;
            cursor: pointer;
            background: none;
            border: none;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: #fff;
            border-radius: 2px;
            transition: var(--transition-smooth);
            transform-origin: center;
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(8.5px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-8.5px) rotate(-45deg);
        }

        /* Mobile Nav Overlay */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(18, 10, 31, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            z-index: 999;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 28px;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-smooth);
        }
        .mobile-nav-overlay.open {
            display: flex;
            opacity: 1;
            pointer-events: all;
        }
        .mobile-nav-overlay a {
            font-size: 1.4rem;
            font-weight: 700;
            color: #c9c5d4;
            letter-spacing: 0.04em;
            transition: var(--transition-fast);
            padding: 8px 20px;
        }
        .mobile-nav-overlay a:hover,
        .mobile-nav-overlay a:active {
            color: #fff;
            text-shadow: 0 0 24px rgba(0, 240, 255, 0.6);
        }
        .mobile-nav-overlay .mobile-cta {
            background: var(--gradient-main);
            color: #fff !important;
            border-radius: var(--radius-xl);
            padding: 12px 28px !important;
            margin-top: 8px;
            box-shadow: var(--shadow-glow-purple);
        }

        /* ============ HERO ============ */
        .hero-section {
            position: relative;
            min-height: 100vh;
            min-height: 100svh;
            display: flex;
            align-items: center;
            overflow: hidden;
            background-color: var(--color-bg);
            background-image: var(--gradient-hero-bg), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
        }
        .hero-canvas {
            position: absolute;
            inset: 0;
            z-index: 1;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            width: 100%;
        }
        .hero-text {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(109, 40, 217, 0.2);
            border: 1px solid rgba(109, 40, 217, 0.4);
            border-radius: var(--radius-full);
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-cyan);
            letter-spacing: 0.05em;
            width: fit-content;
            animation: fadeInUp 0.8s ease-out;
        }
        .hero-badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-cyan);
            animation: badgePulse 1.8s ease-in-out infinite;
        }
        @keyframes badgePulse {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(0, 240, 255, 0.7);
            }
            50% {
                box-shadow: 0 0 0 12px rgba(0, 240, 255, 0);
            }
        }
        .hero-title {
            font-size: clamp(3.2rem, 6.5vw, 7rem);
            font-weight: 900;
            line-height: 1.05;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, #c084fc 0%, #f472b6 45%, #F72585 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            animation: fadeInUp 0.8s ease-out 0.1s both;
        }
        .hero-subtitle {
            font-size: 1.2rem;
            font-weight: 400;
            color: #b0a8c2;
            max-width: 500px;
            line-height: 1.7;
            animation: fadeInUp 0.8s ease-out 0.2s both;
        }
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            animation: fadeInUp 0.8s ease-out 0.3s both;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            letter-spacing: 0.03em;
            padding: 14px 32px;
            border-radius: var(--radius-xl);
            font-size: 1rem;
            transition: var(--transition-smooth);
            cursor: pointer;
            white-space: nowrap;
            text-decoration: none;
            gap: 8px;
        }
        .btn-primary {
            background: var(--gradient-main);
            color: #fff;
            border: none;
            box-shadow: 0 4px 20px rgba(109, 40, 217, 0.4);
            position: relative;
            overflow: hidden;
        }
        .btn-primary::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, transparent 50%);
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }
        .btn-primary:hover {
            box-shadow: 0 8px 32px rgba(247, 37, 133, 0.55);
            transform: translateY(-3px);
        }
        .btn-primary:hover::before {
            opacity: 1;
        }
        .btn-secondary {
            background: transparent;
            color: var(--color-cyan);
            border: 2px solid var(--color-cyan);
            box-shadow: 0 0 0 rgba(0, 240, 255, 0);
            transition: var(--transition-smooth);
        }
        .btn-secondary:hover {
            background: rgba(0, 240, 255, 0.08);
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.3);
            border-color: #fff;
            color: #fff;
            transform: translateY(-3px);
        }
        .hero-visual {
            display: flex;
            align-items: center;
            justify-content: center;
            animation: fadeInUp 0.8s ease-out 0.25s both;
        }
        .hero-glow-orb {
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(247, 37, 133, 0.35) 0%, rgba(109, 40, 217, 0.2) 40%, rgba(10, 10, 10, 0) 70%);
            position: relative;
            animation: orbFloat 5s ease-in-out infinite;
            box-shadow: 0 0 120px rgba(109, 40, 217, 0.4), 0 0 200px rgba(247, 37, 133, 0.2);
        }
        .hero-glow-orb::after {
            content: '';
            position: absolute;
            inset: 30px;
            border-radius: 50%;
            border: 1.5px solid rgba(255, 255, 255, 0.12);
            animation: orbSpin 12s linear infinite;
        }
        @keyframes orbFloat {
            0%,
            100% {
                transform: translateY(0) scale(1);
            }
            33% {
                transform: translateY(-24px) scale(1.05);
            }
            66% {
                transform: translateY(12px) scale(0.96);
            }
        }
        @keyframes orbSpin {
            0% {
                transform: rotate(0deg);
            }
            100% {
                transform: rotate(360deg);
            }
        }
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ============ SECTIONS GENERAL ============ */
        .section {
            padding: var(--spacing-3xl) 0;
        }
        .section-alt {
            background-color: var(--color-bg-alt);
        }
        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--color-cyan);
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: clamp(2rem, 3.5vw, 2.8rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
            text-shadow: 0 0 40px rgba(109, 40, 217, 0.3);
        }
        .section-desc {
            font-size: 1.1rem;
            color: #b0a8c2;
            max-width: 640px;
            line-height: 1.7;
        }
        .section-header {
            margin-bottom: 56px;
        }
        .section-header.center {
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        .section-header.center .section-desc {
            max-width: 700px;
        }

        /* ============ VALUE SECTION ============ */
        .value-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            grid-template-rows: auto auto;
            gap: 28px;
        }
        .value-card {
            background: var(--color-card-bg);
            border: 1px solid var(--color-card-border);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            transition: var(--transition-smooth);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            gap: 16px;
            box-shadow: var(--shadow-card);
        }
        .value-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: scale(1.02);
            border-color: rgba(247, 37, 133, 0.4);
        }
        .value-card.featured {
            grid-row: span 2;
            background: linear-gradient(180deg, #1A1025 0%, #1E0F2D 100%);
            border-color: rgba(109, 40, 217, 0.5);
        }
        .value-card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: rgba(109, 40, 217, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--color-cyan);
            flex-shrink: 0;
        }
        .value-card.featured .value-card-icon {
            background: var(--gradient-main);
            color: #fff;
            font-size: 2rem;
            width: 64px;
            height: 64px;
        }
        .value-card-title {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
        }
        .value-card-desc {
            font-size: 0.95rem;
            color: #b0a8c2;
            line-height: 1.6;
            flex: 1;
        }
        .value-badge-row {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .data-badge {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            width: 90px;
            height: 90px;
            border-radius: 50%;
            background: var(--gradient-main);
            color: #fff;
            font-family: var(--font-family-en);
            box-shadow: 0 0 24px rgba(109, 40, 217, 0.4);
            flex-shrink: 0;
        }
        .data-badge .badge-number {
            font-size: 2rem;
            font-weight: 900;
            line-height: 1;
            letter-spacing: -0.02em;
        }
        .data-badge .badge-label {
            font-size: 0.7rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            opacity: 0.9;
        }
        .value-card-image {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: var(--radius-md);
            margin-top: 8px;
            opacity: 0.85;
            transition: var(--transition-smooth);
        }
        .value-card:hover .value-card-image {
            opacity: 1;
        }

        /* ============ SOLUTIONS SECTION ============ */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .solution-card {
            background: var(--color-card-bg);
            border: 1px solid var(--color-card-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }
        .solution-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: scale(1.02);
            border-color: rgba(247, 37, 133, 0.4);
        }
        .solution-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }
        .solution-card-body {
            padding: 24px 28px 28px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            flex: 1;
        }
        .solution-card-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
        }
        .solution-card-value {
            font-size: 0.9rem;
            color: var(--color-cyan);
            font-weight: 500;
            letter-spacing: 0.02em;
        }
        .solution-card-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-top: 4px;
        }
        .solution-card-list li {
            font-size: 0.9rem;
            color: #b0a8c2;
            padding-left: 18px;
            position: relative;
            line-height: 1.5;
        }
        .solution-card-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-pink);
        }

        /* ============ CASES SECTION ============ */
        .cases-scroll-wrapper {
            overflow-x: auto;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            padding-bottom: 16px;
            scrollbar-width: thin;
            scrollbar-color: rgba(109, 40, 217, 0.4) transparent;
        }
        .cases-scroll-wrapper::-webkit-scrollbar {
            height: 6px;
        }
        .cases-scroll-wrapper::-webkit-scrollbar-track {
            background: transparent;
        }
        .cases-scroll-wrapper::-webkit-scrollbar-thumb {
            background: rgba(109, 40, 217, 0.4);
            border-radius: 3px;
        }
        .cases-grid {
            display: flex;
            gap: 24px;
            min-width: max-content;
            padding: 4px 0;
        }
        .case-card {
            flex: 0 0 340px;
            scroll-snap-align: start;
            background: var(--color-card-bg);
            border: 1px solid var(--color-card-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }
        .case-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-6px);
            border-color: rgba(247, 37, 133, 0.4);
        }
        .case-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .case-card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            flex: 1;
        }
        .case-card-stats {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .case-stat {
            display: flex;
            flex-direction: column;
            font-family: var(--font-family-en);
        }
        .case-stat .stat-value {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--color-orange);
            line-height: 1;
            letter-spacing: -0.02em;
        }
        .case-stat .stat-label {
            font-size: 0.75rem;
            color: #9CA3AF;
            letter-spacing: 0.03em;
        }
        .case-card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
        }
        .case-card-desc {
            font-size: 0.9rem;
            color: #b0a8c2;
            line-height: 1.5;
        }
        .case-card-btn {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-cyan);
            letter-spacing: 0.04em;
            margin-top: auto;
            cursor: default;
            opacity: 0.7;
        }

        /* ============ PROCESS SECTION ============ */
        .process-steps {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 20px;
            position: relative;
        }
        .process-steps::before {
            content: '';
            position: absolute;
            top: 54px;
            left: 80px;
            right: 80px;
            height: 2px;
            border-top: 2px dashed rgba(0, 240, 255, 0.35);
            z-index: 0;
        }
        .process-step {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 16px;
            flex: 1;
            position: relative;
            z-index: 1;
            min-width: 140px;
        }
        .process-step-number {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background: var(--gradient-main);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-family-en);
            font-size: 2.6rem;
            font-weight: 900;
            color: #fff;
            box-shadow: 0 0 32px rgba(109, 40, 217, 0.45);
            transition: var(--transition-smooth);
            flex-shrink: 0;
        }
        .process-step:hover .process-step-number {
            box-shadow: 0 0 48px rgba(247, 37, 133, 0.6);
            transform: scale(1.08);
        }
        .process-step-icon {
            font-size: 1.5rem;
            margin-top: -8px;
            color: #fff;
        }
        .process-step-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.02em;
        }
        .process-step-desc {
            font-size: 0.9rem;
            color: #b0a8c2;
            max-width: 180px;
            line-height: 1.5;
        }

        /* ============ FAQ SECTION ============ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-card-bg);
            border: 1px solid var(--color-card-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition-smooth);
            cursor: pointer;
        }
        .faq-item.active {
            border-color: rgba(0, 240, 255, 0.5);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.1);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-weight: 600;
            color: #fff;
            font-size: 1.05rem;
            letter-spacing: 0.01em;
            gap: 16px;
            user-select: none;
        }
        .faq-arrow {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(109, 40, 217, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform var(--transition-smooth), background var(--transition-smooth);
            color: var(--color-cyan);
            font-size: 1.2rem;
            font-weight: 700;
        }
        .faq-item.active .faq-arrow {
            transform: rotate(180deg);
            background: rgba(0, 240, 255, 0.2);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
            padding: 0 24px;
            color: #b0a8c2;
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            background: linear-gradient(160deg, #1E0F2D 0%, #120A1F 40%, #0A0A0A 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -120px;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(247, 37, 133, 0.18) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -80px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(109, 40, 217, 0.2) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .cta-info {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .cta-info .section-title {
            font-size: clamp(2rem, 3.2vw, 2.6rem);
            margin-bottom: 0;
        }
        .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 8px;
        }
        .cta-form-card {
            background: var(--color-card-bg);
            border: 1px solid var(--color-card-border);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-card);
        }
        .cta-form-card .form-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-size: 0.85rem;
            font-weight: 500;
            color: #c9c5d4;
            margin-bottom: 6px;
            letter-spacing: 0.02em;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            border: 1px solid rgba(109, 40, 217, 0.3);
            background: rgba(10, 10, 10, 0.6);
            color: #fff;
            font-size: 0.95rem;
            transition: var(--transition-fast);
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--color-cyan);
            box-shadow: 0 0 16px rgba(0, 240, 255, 0.15);
            outline: none;
        }
        .form-group textarea {
            resize: vertical;
            min-height: 100px;
        }
        .form-submit-btn {
            width: 100%;
            padding: 14px 28px;
            border-radius: var(--radius-xl);
            background: var(--gradient-main);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            letter-spacing: 0.03em;
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(109, 40, 217, 0.4);
            transition: var(--transition-smooth);
        }
        .form-submit-btn:hover {
            box-shadow: 0 8px 32px rgba(247, 37, 133, 0.55);
            transform: translateY(-2px);
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: #08060D;
            border-top: 1px solid rgba(109, 40, 217, 0.2);
            padding: 56px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
        }
        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .footer-logo {
            font-family: var(--font-family-en);
            font-weight: 900;
            font-size: 1.3rem;
            color: #fff;
            letter-spacing: 0.04em;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-logo .lightning-small {
            width: 14px;
            height: 22px;
            background: var(--gradient-main);
            clip-path: polygon(55% 0%, 20% 48%, 42% 48%, 38% 100%, 78% 50%, 55% 50%, 62% 0%);
            transform: rotate(5deg);
            display: inline-block;
        }
        .footer-desc {
            font-size: 0.9rem;
            color: #9CA3AF;
            line-height: 1.6;
            max-width: 300px;
        }
        .footer-col-title {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.05em;
            margin-bottom: 16px;
            text-transform: uppercase;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul li {
            font-size: 0.9rem;
            color: #9CA3AF;
            transition: var(--transition-fast);
        }
        .footer-col ul li a {
            color: #9CA3AF;
            transition: var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-cyan);
        }
        .footer-social {
            display: flex;
            gap: 14px;
            margin-top: 8px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            border: 1px solid rgba(109, 40, 217, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #9CA3AF;
            transition: var(--transition-smooth);
            font-size: 1rem;
            cursor: pointer;
        }
        .footer-social a:hover {
            border-color: var(--color-cyan);
            color: var(--color-cyan);
            box-shadow: 0 0 16px rgba(0, 240, 255, 0.2);
        }
        .footer-bottom {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid rgba(109, 40, 217, 0.15);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: 0.85rem;
            color: #6B7280;
        }
        .footer-bottom a {
            color: #6B7280;
            transition: var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--color-cyan);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .hero-text {
                align-items: center;
                text-align: center;
            }
            .hero-badge {
                margin: 0 auto;
            }
            .hero-subtitle {
                max-width: 100%;
                margin: 0 auto;
            }
            .hero-buttons {
                justify-content: center;
            }
            .hero-visual {
                display: none;
            }
            .solutions-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .value-grid {
                grid-template-columns: 1fr 1fr;
            }
            .value-card.featured {
                grid-row: span 1;
            }
            .process-steps {
                flex-wrap: wrap;
                gap: 32px;
                justify-content: center;
            }
            .process-steps::before {
                display: none;
            }
            .cta-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .section {
                padding: 80px 0;
            }
            .section-title {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .hero-title {
                font-size: 3.2rem;
            }
            .value-grid {
                grid-template-columns: 1fr;
            }
            .value-card.featured {
                grid-row: span 1;
            }
            .solutions-grid {
                grid-template-columns: 1fr;
            }
            .cases-grid {
                gap: 16px;
            }
            .case-card {
                flex: 0 0 280px;
            }
            .process-steps {
                flex-direction: column;
                align-items: center;
                gap: 24px;
            }
            .process-steps::before {
                display: none;
            }
            .cta-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .section {
                padding: 64px 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero-section {
                min-height: 100svh;
                text-align: center;
            }
            .hero-content {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .hero-text {
                align-items: center;
            }
            .hero-subtitle {
                max-width: 100%;
            }
            .hero-buttons {
                justify-content: center;
            }
            .hero-visual {
                display: none;
            }
            .btn {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .value-card {
                padding: 24px 20px;
            }
            .data-badge {
                width: 72px;
                height: 72px;
            }
            .data-badge .badge-number {
                font-size: 1.5rem;
            }
            .process-step-number {
                width: 72px;
                height: 72px;
                font-size: 2rem;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 0.95rem;
            }
            .faq-answer {
                padding: 0 18px;
            }
            .faq-item.active .faq-answer {
                padding: 0 18px 16px;
            }
            .cta-form-card {
                padding: 24px 20px;
            }
            .site-header {
                padding: 10px 0;
            }
            .header-inner {
                padding: 0 16px;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 2.6rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .case-card {
                flex: 0 0 250px;
            }
            .btn {
                padding: 10px 20px;
                font-size: 0.85rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .value-badge-row {
                gap: 10px;
            }
            .data-badge {
                width: 64px;
                height: 64px;
            }
            .data-badge .badge-number {
                font-size: 1.3rem;
            }
            .data-badge .badge-label {
                font-size: 0.6rem;
            }
        }