/* roulang page: index */
:root {
            --primary-purple: #7B2FFF;
            --primary-cyan: #00E5FF;
            --accent-pink: #FF3CAC;
            --bg-deep: #0B0E14;
            --bg-surface: #0F111A;
            --bg-card: rgba(255, 255, 255, 0.04);
            --bg-card-hover: rgba(255, 255, 255, 0.07);
            --text-primary: #F0F0F5;
            --text-secondary: #B0B5C0;
            --text-muted: #6B7080;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-glow: rgba(0, 229, 255, 0.35);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-glow-cyan: 0 0 20px rgba(0, 229, 255, 0.3);
            --shadow-glow-purple: 0 0 24px rgba(123, 47, 255, 0.35);
            --shadow-glow-pink: 0 0 18px rgba(255, 60, 172, 0.3);
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
            --font-display: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --max-width: 1280px;
            --nav-height: 68px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.5rem;
            --spacing-lg: 2.5rem;
            --spacing-xl: 4rem;
            --spacing-2xl: 6rem;
        }

        *,
        *::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;
            font-size: 16px;
            line-height: 1.6;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-tap-highlight-color: transparent;
        }

        img {
            display: block;
            max-width: 100%;
            height: auto;
        }
        a {
            text-decoration: none;
            color: inherit;
            outline: none;
            transition: color var(--transition-fast);
        }
        a:focus-visible {
            outline: 2px solid var(--primary-cyan);
            outline-offset: 3px;
            border-radius: 4px;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }
        button:focus-visible {
            outline: 2px solid var(--primary-cyan);
            outline-offset: 3px;
            border-radius: 4px;
        }
        ul,
        ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }
        @media (min-width: 1200px) {
            .container {
                padding: 0 var(--spacing-lg);
            }
        }
        @media (max-width: 575px) {
            .container {
                padding: 0 var(--spacing-sm);
            }
        }

        /* ========== NAVIGATION ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(11, 14, 20, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid transparent;
            background-image: linear-gradient(rgba(11, 14, 20, 0.88), rgba(11, 14, 20, 0.88)),
                linear-gradient(90deg, var(--primary-purple) 0%, var(--primary-cyan) 50%, var(--primary-purple) 100%);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            background-size: 100% 100%, 100% 1px;
            background-position: 0 0, 0 100%;
            background-repeat: no-repeat, no-repeat;
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
        }
        .site-header.scrolled {
            box-shadow: 0 2px 32px rgba(0, 0, 0, 0.5);
            background: rgba(11, 14, 20, 0.94);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }
        @media (min-width: 1200px) {
            .header-inner {
                padding: 0 var(--spacing-lg);
            }
        }
        @media (max-width: 575px) {
            .header-inner {
                padding: 0 var(--spacing-sm);
            }
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            z-index: 1002;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            position: relative;
            flex-shrink: 0;
        }
        .logo-icon svg {
            width: 100%;
            height: 100%;
        }
        .logo-text {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: 0.02em;
            background: linear-gradient(135deg, var(--primary-purple) 0%, #9B5FFF 40%, var(--primary-cyan) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }
        @media (max-width: 575px) {
            .logo-text {
                font-size: 1.15rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
            }
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
            flex-shrink: 0;
        }
        .nav-links a {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            position: relative;
            padding: 6px 0;
            transition: color var(--transition-fast);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 100%;
            height: 2px;
            background: var(--primary-cyan);
            border-radius: 2px;
            transition: transform var(--transition-smooth);
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--primary-cyan);
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            transform: translateX(-50%) scaleX(1);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            z-index: 1002;
            padding: 8px;
            cursor: pointer;
            background: transparent;
            border: none;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-smooth);
            transform-origin: center;
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
            background: var(--primary-cyan);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
            background: var(--primary-cyan);
        }
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 1001;
            background: rgba(11, 14, 20, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2.5rem;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-smooth);
        }
        .mobile-nav-overlay.active {
            display: flex;
            opacity: 1;
            pointer-events: all;
        }
        .mobile-nav-overlay a {
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: 0.03em;
            transition: color var(--transition-fast), text-shadow var(--transition-fast);
            position: relative;
        }
        .mobile-nav-overlay a:hover,
        .mobile-nav-overlay a.active {
            color: var(--primary-cyan);
            text-shadow: 0 0 18px rgba(0, 229, 255, 0.5);
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-nav-overlay {
                display: flex;
            }
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            isolation: isolate;
            padding-top: var(--nav-height);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            background-position: center 25%;
            filter: brightness(0.35) saturate(0.6);
            transform: scale(1.05);
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            z-index: 1;
            background: radial-gradient(ellipse at 50% 40%, rgba(123, 47, 255, 0.25) 0%, transparent 60%),
                radial-gradient(ellipse at 30% 60%, rgba(0, 229, 255, 0.15) 0%, transparent 50%),
                radial-gradient(ellipse at 70% 50%, rgba(255, 60, 172, 0.1) 0%, transparent 50%),
                linear-gradient(180deg, rgba(11, 14, 20, 0.5) 0%, rgba(11, 14, 20, 0.7) 50%, rgba(11, 14, 20, 0.9) 100%);
        }
        #hero-particles {
            position: absolute;
            inset: 0;
            z-index: 2;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 3;
            text-align: center;
            max-width: 800px;
            padding: 0 var(--spacing-md);
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 50px;
            background: rgba(123, 47, 255, 0.2);
            border: 1px solid rgba(123, 47, 255, 0.4);
            color: var(--primary-cyan);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            margin-bottom: var(--spacing-md);
            animation: fadeInUp 0.7s ease forwards;
            opacity: 0;
        }
        .hero-title {
            font-family: var(--font-display);
            font-weight: 900;
            font-size: clamp(2.4rem, 5.5vw, 3.6rem);
            line-height: 1.18;
            letter-spacing: 0.01em;
            margin-bottom: var(--spacing-sm);
            animation: fadeInUp 0.7s 0.15s ease forwards;
            opacity: 0;
        }
        .hero-title .gradient-text {
            background: linear-gradient(135deg, #C084FF 0%, var(--primary-cyan) 50%, #FF3CAC 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            background-size: 200% 100%;
            animation: shimmer 3s ease-in-out infinite;
        }
        @keyframes shimmer {
            0%,
            100% {
                background-position: 0% 50%;
            }
            50% {
                background-position: 100% 50%;
            }
        }
        .hero-subtitle {
            font-size: clamp(1.05rem, 2vw, 1.2rem);
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto var(--spacing-lg);
            line-height: 1.7;
            animation: fadeInUp 0.7s 0.3s ease forwards;
            opacity: 0;
        }
        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
            justify-content: center;
            animation: fadeInUp 0.7s 0.45s ease forwards;
            opacity: 0;
        }
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(28px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
            white-space: nowrap;
            min-height: 48px;
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary-purple) 0%, #9B5FFF 30%, var(--primary-cyan) 100%);
            color: #fff;
            border: none;
            box-shadow: 0 4px 20px rgba(123, 47, 255, 0.35);
            background-size: 200% 100%;
            background-position: 0% 50%;
        }
        .btn-primary:hover {
            background-position: 100% 50%;
            box-shadow: 0 6px 32px rgba(123, 47, 255, 0.5), 0 0 40px rgba(0, 229, 255, 0.25);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary-cyan);
            border: 1.5px solid var(--primary-cyan);
        }
        .btn-outline:hover {
            background: rgba(0, 229, 255, 0.1);
            box-shadow: 0 0 24px rgba(0, 229, 255, 0.25);
            transform: translateY(-2px);
            border-color: #fff;
            color: #fff;
        }
        @media (max-width: 575px) {
            .btn {
                padding: 12px 22px;
                font-size: 0.9rem;
                min-height: 44px;
                border-radius: 6px;
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: center;
                width: 100%;
            }
            .hero-cta-group .btn {
                width: 100%;
                justify-content: center;
                max-width: 300px;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
        }

        /* ========== SECTION COMMONS ========== */
        .section {
            padding: var(--spacing-2xl) 0;
            position: relative;
        }
        @media (max-width: 768px) {
            .section {
                padding: var(--spacing-xl) 0;
            }
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary-cyan);
            text-transform: uppercase;
            margin-bottom: var(--spacing-xs);
        }
        .section-title {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            letter-spacing: 0.01em;
            margin-bottom: var(--spacing-sm);
            line-height: 1.25;
            color: var(--text-primary);
        }
        .section-title .accent {
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .section-desc {
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 600px;
            line-height: 1.7;
        }
        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-xl);
        }
        .section-header .section-desc {
            margin: 0 auto;
        }
        @media (max-width: 575px) {
            .section-title {
                font-size: 1.55rem;
            }
            .section-desc {
                font-size: 0.95rem;
            }
        }

        /* ========== FEATURES ========== */
        .features-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: var(--spacing-md);
            align-items: stretch;
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--primary-cyan), transparent);
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }
        .feature-card:hover {
            border-color: var(--border-glow);
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow-cyan), var(--shadow-card);
            background: var(--bg-card-hover);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-card.feature-large {
            grid-row: span 2;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: var(--spacing-sm);
            background: linear-gradient(160deg, rgba(123, 47, 255, 0.12) 0%, rgba(0, 229, 255, 0.06) 100%);
            border-color: rgba(123, 47, 255, 0.25);
        }
        .feature-card.feature-large:hover {
            border-color: rgba(123, 47, 255, 0.5);
            box-shadow: var(--shadow-glow-purple), var(--shadow-card);
        }
        .feature-icon {
            width: 48px;
            height: 48px;
            flex-shrink: 0;
            margin-bottom: var(--spacing-xs);
        }
        .feature-icon svg {
            width: 100%;
            height: 100%;
        }
        .feature-card h3 {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 6px;
            color: var(--text-primary);
        }
        .feature-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.65;
        }
        .feature-card.feature-large h3 {
            font-size: 1.5rem;
        }
        @media (max-width: 768px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-sm);
            }
            .feature-card.feature-large {
                grid-row: span 1;
            }
            .feature-card {
                padding: var(--spacing-md);
            }
        }

        /* ========== SERVICES ========== */
        .services-scroll {
            display: flex;
            gap: var(--spacing-md);
            overflow-x: auto;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            padding-bottom: var(--spacing-sm);
            scrollbar-width: thin;
            scrollbar-color: rgba(0, 229, 255, 0.3) transparent;
        }
        .services-scroll::-webkit-scrollbar {
            height: 6px;
        }
        .services-scroll::-webkit-scrollbar-track {
            background: transparent;
            border-radius: 3px;
        }
        .services-scroll::-webkit-scrollbar-thumb {
            background: rgba(0, 229, 255, 0.3);
            border-radius: 3px;
        }
        .service-card {
            flex: 0 0 300px;
            scroll-snap-align: start;
            border-radius: var(--radius-md);
            overflow: hidden;
            position: relative;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            cursor: pointer;
            transition: all var(--transition-smooth);
            min-height: 380px;
            display: flex;
            flex-direction: column;
        }
        .service-card:hover {
            transform: translateY(-6px) scale(1.02);
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow-cyan), var(--shadow-card);
        }
        .service-card-img {
            height: 180px;
            flex-shrink: 0;
            position: relative;
            overflow: hidden;
        }
        .service-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .service-card:hover .service-card-img img {
            transform: scale(1.08);
        }
        .service-card-img::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60%;
            background: linear-gradient(transparent, rgba(11, 14, 20, 0.85));
            pointer-events: none;
        }
        .service-card-body {
            padding: var(--spacing-md);
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .service-card-body h3 {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--text-primary);
        }
        .service-card-body p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .service-card-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            background: rgba(0, 229, 255, 0.12);
            color: var(--primary-cyan);
            border: 1px solid rgba(0, 229, 255, 0.25);
            align-self: flex-start;
            margin-top: auto;
        }
        @media (max-width: 768px) {
            .services-scroll {
                flex-direction: column;
                overflow-x: visible;
                scroll-snap-type: none;
            }
            .service-card {
                flex: 0 0 auto;
                width: 100%;
                min-height: auto;
                flex-direction: row;
                align-items: stretch;
            }
            .service-card-img {
                width: 140px;
                height: auto;
                flex-shrink: 0;
            }
            .service-card-img img {
                height: 100%;
                width: 100%;
                object-fit: cover;
            }
            .service-card-body {
                flex: 1;
                padding: var(--spacing-sm);
            }
        }
        @media (max-width: 480px) {
            .service-card {
                flex-direction: column;
            }
            .service-card-img {
                width: 100%;
                height: 160px;
            }
        }

        /* ========== PROCESS ========== */
        .process-timeline {
            display: flex;
            gap: var(--spacing-lg);
            position: relative;
            align-items: flex-start;
            justify-content: center;
            flex-wrap: wrap;
        }
        .process-timeline::before {
            content: '';
            position: absolute;
            top: 52px;
            left: 10%;
            right: 10%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.4), rgba(123, 47, 255, 0.4), transparent);
            z-index: 0;
            pointer-events: none;
        }
        .process-step {
            flex: 1;
            min-width: 200px;
            max-width: 280px;
            text-align: center;
            position: relative;
            z-index: 1;
            padding: var(--spacing-sm);
        }
        .process-step-number {
            font-family: var(--font-display);
            font-weight: 900;
            font-size: 4.5rem;
            line-height: 1;
            background: linear-gradient(180deg, var(--primary-cyan) 0%, rgba(0, 229, 255, 0.3) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: block;
            margin-bottom: var(--spacing-xs);
        }
        .process-step h3 {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .process-step p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.55;
        }
        @media (max-width: 768px) {
            .process-timeline {
                flex-direction: column;
                align-items: flex-start;
                gap: var(--spacing-md);
                padding-left: var(--spacing-lg);
            }
            .process-timeline::before {
                top: 0;
                bottom: 0;
                left: 28px;
                right: auto;
                width: 1px;
                height: auto;
                background: linear-gradient(180deg, rgba(0, 229, 255, 0.4), rgba(123, 47, 255, 0.4), transparent);
            }
            .process-step {
                text-align: left;
                max-width: 100%;
                padding-left: var(--spacing-lg);
                display: flex;
                flex-direction: column;
            }
            .process-step-number {
                font-size: 3rem;
                position: absolute;
                left: -8px;
                top: -8px;
            }
        }

        /* ========== CASES / STATS ========== */
        .stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-lg);
            justify-content: center;
            margin-bottom: var(--spacing-xl);
        }
        .stat-item {
            text-align: center;
            flex: 1;
            min-width: 180px;
            max-width: 260px;
        }
        .stat-number {
            font-family: var(--font-display);
            font-weight: 900;
            font-size: clamp(2.8rem, 5vw, 3.8rem);
            line-height: 1;
            background: linear-gradient(135deg, var(--primary-purple) 0%, var(--primary-cyan) 70%, #FF3CAC 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: block;
            margin-bottom: 4px;
        }
        .stat-label {
            color: var(--text-muted);
            font-size: 0.9rem;
            font-weight: 500;
            letter-spacing: 0.03em;
        }
        .cases-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }
        .case-card {
            border-radius: var(--radius-md);
            overflow: hidden;
            position: relative;
            min-height: 220px;
            background-size: cover;
            background-position: center;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            display: flex;
            align-items: flex-end;
        }
        .case-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(transparent 30%, rgba(11, 14, 20, 0.9));
            z-index: 1;
            pointer-events: none;
        }
        .case-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow-cyan);
            transform: translateY(-3px);
        }
        .case-card-content {
            position: relative;
            z-index: 2;
            padding: var(--spacing-md);
            width: 100%;
        }
        .case-card-content h4 {
            font-weight: 700;
            font-size: 1.05rem;
            color: #fff;
            margin-bottom: 4px;
        }
        .case-card-content p {
            color: var(--text-secondary);
            font-size: 0.85rem;
        }
        @media (max-width: 768px) {
            .cases-cards {
                grid-template-columns: 1fr 1fr;
            }
            .stat-item {
                min-width: 140px;
                max-width: 48%;
            }
        }
        @media (max-width: 480px) {
            .cases-cards {
                grid-template-columns: 1fr;
            }
            .stat-number {
                font-size: 2.2rem;
            }
            .stat-item {
                min-width: 100px;
                max-width: 45%;
            }
            .stats-row {
                gap: var(--spacing-sm);
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        .faq-item {
            border-radius: var(--radius-md);
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }
        .faq-item.active {
            border-color: var(--border-glow);
            box-shadow: 0 0 16px rgba(0, 229, 255, 0.15);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--spacing-md);
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            cursor: pointer;
            text-align: left;
            letter-spacing: 0.01em;
            transition: color var(--transition-fast);
            position: relative;
            gap: var(--spacing-sm);
            min-height: 52px;
        }
        .faq-question::before {
            content: '';
            position: absolute;
            left: 0;
            top: 16px;
            bottom: 16px;
            width: 3px;
            background: var(--primary-cyan);
            border-radius: 0 3px 3px 0;
            opacity: 0;
            transition: opacity var(--transition-fast);
        }
        .faq-item.active .faq-question::before {
            opacity: 1;
        }
        .faq-item.active .faq-question {
            color: var(--primary-cyan);
        }
        .faq-icon {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            transition: transform var(--transition-smooth);
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .faq-item.active .faq-icon {
            transform: rotate(180deg);
            color: var(--primary-cyan);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            padding: 0 var(--spacing-md);
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 var(--spacing-md) var(--spacing-md);
        }
        .faq-answer-inner {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.65;
            background: rgba(255, 255, 255, 0.02);
            border-radius: var(--radius-sm);
            padding: var(--spacing-sm);
        }
        @media (max-width: 575px) {
            .faq-question {
                font-size: 0.9rem;
                padding: var(--spacing-sm);
                min-height: 44px;
            }
            .faq-answer-inner {
                font-size: 0.85rem;
                padding: 10px;
            }
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            position: relative;
            overflow: hidden;
            isolation: isolate;
            text-align: center;
            padding: var(--spacing-2xl) 0;
        }
        .cta-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            background: radial-gradient(ellipse at 50% 50%, rgba(123, 47, 255, 0.3) 0%, transparent 60%),
                radial-gradient(ellipse at 30% 40%, rgba(0, 229, 255, 0.2) 0%, transparent 50%),
                radial-gradient(ellipse at 70% 60%, rgba(255, 60, 172, 0.15) 0%, transparent 50%),
                var(--bg-surface);
        }
        .cta-content {
            position: relative;
            z-index: 1;
            max-width: 650px;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }
        .cta-content h2 {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: clamp(1.8rem, 3.5vw, 2.5rem);
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.01em;
        }
        .cta-content p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            margin-bottom: var(--spacing-lg);
        }
        @media (max-width: 575px) {
            .cta-content h2 {
                font-size: 1.55rem;
            }
            .cta-content p {
                font-size: 0.9rem;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-surface);
            border-top: 1px solid var(--border-subtle);
            padding: var(--spacing-xl) 0;
        }
        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-lg);
            align-items: center;
            justify-content: space-between;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }
        @media (min-width: 1200px) {
            .footer-inner {
                padding: 0 var(--spacing-lg);
            }
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .footer-brand .logo-text {
            font-size: 1.2rem;
        }
        .footer-info {
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.6;
        }
        .footer-social {
            display: flex;
            gap: var(--spacing-sm);
            align-items: center;
            flex-shrink: 0;
        }
        .footer-social .social-dot {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            cursor: default;
            font-size: 0.9rem;
        }
        .footer-social .social-dot:hover {
            border-color: var(--primary-cyan);
            color: var(--primary-cyan);
            box-shadow: var(--shadow-glow-cyan);
            background: rgba(0, 229, 255, 0.08);
        }
        @media (max-width: 575px) {
            .footer-inner {
                flex-direction: column;
                text-align: center;
                gap: var(--spacing-md);
            }
            .footer-social {
                justify-content: center;
            }
        }

        /* ========== UTILITIES ========== */
        .text-center {
            text-align: center;
        }
        .mt-lg {
            margin-top: var(--spacing-lg);
        }
        .mb-lg {
            margin-bottom: var(--spacing-lg);
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
            html {
                scroll-behavior: auto;
            }
        }