/* roulang page: index */
:root {
            --bg-deep: #080C1A;
            --bg-glass: rgba(12, 25, 45, 0.65);
            --bg-glass-light: rgba(16, 32, 55, 0.55);
            --accent-cyan: #00F0FF;
            --accent-red: #FF4D6D;
            --accent-green: #2BD9A8;
            --text-white: #FFFFFF;
            --text-body: #B0C4DE;
            --text-muted: #7B8FA1;
            --gradient-btn: linear-gradient(135deg, #00F0FF, #2B7FFF);
            --gradient-btn-hover: linear-gradient(135deg, #1AF5FF, #4B9FFF);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4), inset 0 1px 1px rgba(255, 255, 255, 0.1);
            --shadow-card-hover: 0 12px 40px rgba(0, 0, 0, 0.55), inset 0 1px 1px rgba(255, 255, 255, 0.15);
            --shadow-btn: 0 0 20px rgba(0, 240, 255, 0.5);
            --shadow-btn-hover: 0 0 32px rgba(0, 240, 255, 0.7), 0 0 60px rgba(0, 240, 255, 0.3);
            --border-glass: 1px solid rgba(0, 240, 255, 0.2);
            --border-glass-bright: 1px solid rgba(0, 240, 255, 0.5);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-pill: 50px;
            --gap-section: 100px;
            --gap-section-mobile: 60px;
            --max-width: 1200px;
            --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);
            --font-cn: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            --z-header: 1000;
            --z-mobile-nav: 999;
            --z-overlay: 500;
        }

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

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

        body {
            font-family: var(--font-cn);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--bg-deep);
            background-image:
                radial-gradient(ellipse at 20% 15%, rgba(0, 180, 220, 0.06) 0%, transparent 55%),
                radial-gradient(ellipse at 75% 30%, rgba(43, 127, 255, 0.05) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 60%, rgba(0, 240, 255, 0.03) 0%, transparent 50%);
            background-attachment: fixed;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

        input {
            font-family: inherit;
            color: inherit;
        }

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

        /* ========== HEADER / NAV ========== */
        #header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: var(--z-header);
            background: rgba(8, 12, 26, 0.8);
            backdrop-filter: blur(22px);
            -webkit-backdrop-filter: blur(22px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.12);
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
        }
        #header.scrolled {
            background: rgba(8, 12, 26, 0.92);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            z-index: calc(var(--z-mobile-nav) + 1);
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            flex-shrink: 0;
        }
        .logo-icon svg {
            width: 100%;
            height: 100%;
            display: block;
        }
        .logo-text {
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            background: linear-gradient(135deg, #00F0FF, #4da8ff, #00F0FF);
            background-size: 200% auto;
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            animation: logoShimmer 3s ease-in-out infinite;
            white-space: nowrap;
        }
        @keyframes logoShimmer {
            0%,
            100% {
                background-position: 0% center;
            }
            50% {
                background-position: 100% center;
            }
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }
        .nav-desktop li a {
            display: block;
            padding: 10px 16px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            border-radius: 6px;
            position: relative;
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
        }
        .nav-desktop li a::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: calc(100% - 28px);
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 1px;
            transition: transform var(--transition-smooth);
        }
        .nav-desktop li a:hover,
        .nav-desktop li a.active {
            color: #fff;
            background: rgba(0, 240, 255, 0.06);
        }
        .nav-desktop li a:hover::after,
        .nav-desktop li a.active::after {
            transform: translateX(-50%) scaleX(1);
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            background: var(--gradient-btn);
            border-radius: var(--radius-pill);
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-smooth);
            white-space: nowrap;
            flex-shrink: 0;
            margin-left: 8px;
        }
        .nav-cta-btn:hover {
            box-shadow: var(--shadow-btn-hover);
            transform: scale(1.04);
        }
        .nav-cta-btn:active {
            transform: scale(0.97);
        }
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            z-index: calc(var(--z-mobile-nav) + 1);
            padding: 8px;
            background: none;
            border: none;
        }
        .mobile-toggle span {
            display: block;
            width: 26px;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 2px;
            transition: all var(--transition-smooth);
            transform-origin: center;
        }
        .mobile-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .mobile-toggle.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .mobile-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-nav-panel {
            display: none;
            position: fixed;
            inset: 0;
            z-index: var(--z-mobile-nav);
            background: rgba(8, 12, 26, 0.94);
            backdrop-filter: blur(28px);
            -webkit-backdrop-filter: blur(28px);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 18px;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-smooth);
        }
        .mobile-nav-panel.open {
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-nav-panel a {
            font-size: 1.35rem;
            font-weight: 600;
            color: #fff;
            padding: 12px 28px;
            border-radius: 8px;
            transition: all var(--transition-fast);
            letter-spacing: 0.03em;
        }
        .mobile-nav-panel a:hover,
        .mobile-nav-panel a:active {
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent-cyan);
        }
        .mobile-nav-cta {
            margin-top: 12px;
            padding: 14px 36px;
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            background: var(--gradient-btn);
            border-radius: var(--radius-pill);
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-smooth);
        }

        /* ========== HERO ========== */
        #hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding-top: 80px;
            padding-bottom: 60px;
            overflow: hidden;
        }
        .hero-bg-layer {
            position: absolute;
            inset: 0;
            z-index: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.22;
            mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
            -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
        }
        .hero-light-beam {
            position: absolute;
            top: -30%;
            left: -15%;
            width: 60%;
            height: 160%;
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.07) 0%, transparent 60%);
            transform: rotate(-18deg);
            z-index: 0;
            pointer-events: none;
            animation: beamDrift 8s ease-in-out infinite;
        }
        @keyframes beamDrift {
            0%,
            100% {
                transform: rotate(-18deg) translateX(0);
            }
            50% {
                transform: rotate(-16deg) translateX(30px);
            }
        }
        .hero-glass-overlay {
            position: absolute;
            inset: 0;
            z-index: 1;
            background: rgba(8, 12, 26, 0.45);
            backdrop-filter: blur(3px);
            -webkit-backdrop-filter: blur(3px);
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 48px;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .hero-image-wrap {
            flex: 0 0 42%;
            aspect-ratio: 16 / 9;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: var(--border-glass);
            box-shadow: var(--shadow-card), 0 0 40px rgba(0, 240, 255, 0.08);
            position: relative;
        }
        .hero-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        .hero-image-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: inherit;
            background: linear-gradient(180deg, rgba(0, 240, 255, 0.08) 0%, transparent 60%);
            pointer-events: none;
        }
        .hero-text {
            flex: 1;
            min-width: 0;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 16px;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.3);
            border-radius: var(--radius-pill);
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-cyan);
            margin-bottom: 20px;
            letter-spacing: 0.04em;
        }
        .hero-badge .pulse-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-cyan);
            animation: pulseDot 1.6s ease-in-out infinite;
        }
        @keyframes pulseDot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(0, 240, 255, 0.7);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(0, 240, 255, 0);
            }
        }
        .hero-title {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        .hero-title .highlight {
            background: linear-gradient(135deg, #00F0FF, #2BD9A8);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-body);
            margin-bottom: 28px;
            max-width: 520px;
            line-height: 1.6;
        }
        .hero-marquee-wrap {
            margin-bottom: 28px;
            overflow: hidden;
            border-radius: var(--radius-sm);
            background: rgba(0, 240, 255, 0.04);
            border: 1px solid rgba(0, 240, 255, 0.15);
            padding: 10px 0;
            position: relative;
        }
        .hero-marquee {
            display: flex;
            gap: 40px;
            animation: marqueeScroll 20s linear infinite;
            white-space: nowrap;
            font-family: var(--font-num);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--accent-cyan);
            letter-spacing: 0.03em;
        }
        .hero-marquee span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }
        .hero-marquee .sep {
            color: rgba(0, 240, 255, 0.4);
            font-weight: 400;
        }
        @keyframes marqueeScroll {
            0% {
                transform: translateX(0);
            }
            100% {
                transform: translateX(-50%);
            }
        }
        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 15px 32px;
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            background: var(--gradient-btn);
            border-radius: var(--radius-pill);
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-smooth);
            letter-spacing: 0.02em;
            animation: btnPulse 2.6s ease-in-out infinite;
        }
        @keyframes btnPulse {
            0%,
            100% {
                box-shadow: 0 0 20px rgba(0, 240, 255, 0.5);
            }
            50% {
                box-shadow: 0 0 36px rgba(0, 240, 255, 0.75), 0 0 64px rgba(0, 240, 255, 0.25);
            }
        }
        .btn-primary:hover {
            box-shadow: var(--shadow-btn-hover);
            transform: scale(1.04);
            animation: none;
        }
        .btn-primary:active {
            transform: scale(0.96);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 15px 32px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--accent-cyan);
            background: transparent;
            border: 1px solid var(--accent-cyan);
            border-radius: var(--radius-pill);
            transition: all var(--transition-smooth);
            letter-spacing: 0.02em;
        }
        .btn-secondary:hover {
            background: rgba(0, 240, 255, 0.1);
            box-shadow: 0 0 18px rgba(0, 240, 255, 0.25);
            border-color: rgba(0, 240, 255, 0.7);
        }
        .btn-secondary:active {
            transform: scale(0.96);
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: var(--gap-section) 0;
            position: relative;
        }
        .section-divider {
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.35), transparent);
            margin: 0 auto;
            max-width: 900px;
            opacity: 0.7;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .section-header p {
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto;
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: var(--accent-cyan);
            margin-bottom: 8px;
        }

        /* ========== STATS ========== */
        #stats .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--bg-glass);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .stat-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 20%;
            right: 20%;
            height: 2px;
            background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.5), transparent);
            border-radius: 1px;
            animation: statGlow 3s ease-in-out infinite;
        }
        @keyframes statGlow {
            0%,
            100% {
                opacity: 0.4;
            }
            50% {
                opacity: 1;
            }
        }
        .stat-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 240, 255, 0.5);
            box-shadow: var(--shadow-card-hover);
            background: rgba(18, 32, 55, 0.7);
        }
        .stat-icon {
            width: 44px;
            height: 44px;
            margin: 0 auto 14px;
            color: var(--accent-cyan);
            opacity: 0.85;
        }
        .stat-icon svg {
            width: 100%;
            height: 100%;
        }
        .stat-number {
            font-family: var(--font-num);
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            line-height: 1;
            margin-bottom: 6px;
            letter-spacing: -0.02em;
            font-variant-numeric: tabular-nums;
        }
        .stat-number .suffix {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--accent-cyan);
            margin-left: 2px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
            letter-spacing: 0.02em;
        }

        /* ========== SERVICES ========== */
        #services .services-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            grid-template-rows: auto auto auto;
            gap: 20px;
        }
        .service-card-large {
            grid-row: 1 / 4;
            background: var(--bg-glass);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }
        .service-card-large:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 240, 255, 0.5);
            box-shadow: var(--shadow-card-hover);
            background: rgba(18, 32, 55, 0.7);
        }
        .service-card-large .service-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin-bottom: 20px;
            border: 1px solid rgba(0, 240, 255, 0.15);
        }
        .service-card-large .service-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .service-card-large h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .service-card-large .service-desc {
            color: var(--text-body);
            margin-bottom: 16px;
            line-height: 1.6;
        }
        .service-features {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .service-features li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.5;
        }
        .service-features li .check-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            color: var(--accent-green);
            margin-top: 2px;
        }
        .service-card-small {
            background: var(--bg-glass);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: var(--border-glass);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .service-card-small:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 240, 255, 0.5);
            box-shadow: var(--shadow-card-hover);
            background: rgba(18, 32, 55, 0.7);
        }
        .service-card-small .service-icon-sq {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            border: 1px solid rgba(0, 240, 255, 0.2);
        }
        .service-card-small .service-icon-sq img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .service-card-small h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #fff;
            margin: 0;
        }
        .service-card-small p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }

        /* ========== COMPARISON ========== */
        #comparison .comparison-wrap {
            display: flex;
            align-items: stretch;
            gap: 0;
            position: relative;
        }
        .comparison-panel {
            flex: 1;
            background: var(--bg-glass);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
        }
        .comparison-panel.ours {
            border-color: rgba(0, 240, 255, 0.35);
            box-shadow: var(--shadow-card), 0 0 30px rgba(0, 240, 255, 0.08);
            position: relative;
            z-index: 1;
        }
        .comparison-panel.theirs {
            opacity: 0.8;
        }
        .comparison-panel h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            text-align: center;
        }
        .comparison-panel.ours h3 {
            color: var(--accent-cyan);
        }
        .comparison-panel.theirs h3 {
            color: var(--text-muted);
        }
        .comparison-divider {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            width: 60px;
            position: relative;
            z-index: 2;
        }
        .lightning-icon {
            width: 36px;
            height: 36px;
            color: var(--accent-cyan);
            animation: lightningFlash 1.8s ease-in-out infinite;
        }
        @keyframes lightningFlash {
            0%,
            100% {
                opacity: 0.5;
                filter: drop-shadow(0 0 4px rgba(0, 240, 255, 0.4));
            }
            50% {
                opacity: 1;
                filter: drop-shadow(0 0 18px rgba(0, 240, 255, 0.9));
            }
        }
        .comparison-bar-row {
            margin-bottom: 16px;
        }
        .comparison-bar-row:last-child {
            margin-bottom: 0;
        }
        .comparison-bar-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-body);
            margin-bottom: 6px;
            letter-spacing: 0.02em;
        }
        .comparison-bar-track {
            height: 8px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 4px;
            overflow: hidden;
        }
        .comparison-bar-fill {
            height: 100%;
            border-radius: 4px;
            transition: width 1.2s cubic-bezier(0.22, 0.61, 0.36, 1);
            width: 0%;
        }
        .ours .comparison-bar-fill {
            background: linear-gradient(90deg, #00F0FF, #2BD9A8);
            box-shadow: 0 0 8px rgba(0, 240, 255, 0.4);
        }
        .theirs .comparison-bar-fill {
            background: linear-gradient(90deg, #5a6b7a, #7B8FA1);
            box-shadow: none;
        }

        /* ========== FAQ ========== */
        #faq .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid rgba(0, 240, 255, 0.12);
            background: rgba(12, 25, 45, 0.35);
            transition: all var(--transition-smooth);
        }
        .faq-item[open] {
            background: var(--bg-glass);
            border-color: rgba(0, 240, 255, 0.3);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.06);
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 18px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.05rem;
            color: #fff;
            list-style: none;
            user-select: none;
            transition: color var(--transition-fast);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .faq-bird-icon {
            flex-shrink: 0;
            width: 18px;
            height: 18px;
            color: var(--accent-cyan);
            transition: transform var(--transition-smooth);
        }
        .faq-item[open] summary .faq-bird-icon {
            transform: rotate(180deg);
            color: var(--accent-green);
        }
        .faq-item summary .faq-arrow {
            margin-left: auto;
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            transition: transform var(--transition-smooth);
            color: var(--text-muted);
        }
        .faq-item[open] summary .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent-cyan);
        }
        .faq-item .faq-answer {
            padding: 0 20px 20px 50px;
            color: var(--text-body);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        /* ========== CTA ========== */
        #cta {
            position: relative;
            overflow: hidden;
        }
        #cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 40%, rgba(0, 240, 255, 0.04) 0%, transparent 60%);
            pointer-events: none;
            z-index: 0;
        }
        .cta-card {
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin: 0 auto;
            background: var(--bg-glass);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid rgba(0, 240, 255, 0.35);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            box-shadow: var(--shadow-card), 0 0 50px rgba(0, 240, 255, 0.07);
            text-align: center;
            transition: all var(--transition-smooth);
        }
        .cta-card:hover {
            box-shadow: var(--shadow-card-hover), 0 0 60px rgba(0, 240, 255, 0.1);
        }
        .cta-card h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .cta-card .cta-sub {
            color: var(--text-body);
            margin-bottom: 28px;
            font-size: 0.95rem;
        }
        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 16px;
            text-align: left;
        }
        .cta-form .input-group {
            position: relative;
        }
        .cta-form input {
            width: 100%;
            padding: 14px 16px;
            background: rgba(255, 255, 255, 0.04);
            border: none;
            border-bottom: 2px solid rgba(0, 240, 255, 0.3);
            border-radius: 4px 4px 0 0;
            color: #fff;
            font-size: 0.95rem;
            transition: all var(--transition-smooth);
            outline: none;
        }
        .cta-form input:focus {
            border-bottom-color: var(--accent-cyan);
            border-bottom-width: 3px;
            background: rgba(0, 240, 255, 0.04);
            box-shadow: 0 4px 12px rgba(0, 240, 255, 0.08);
        }
        .cta-form input::placeholder {
            color: var(--text-muted);
            opacity: 0.7;
        }
        .cta-form .btn-submit {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 16px 36px;
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            background: var(--gradient-btn);
            border-radius: var(--radius-pill);
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-smooth);
            letter-spacing: 0.03em;
            animation: btnPulse 2.6s ease-in-out infinite;
            cursor: pointer;
            border: none;
            width: 100%;
            margin-top: 4px;
        }
        .cta-form .btn-submit:hover {
            box-shadow: var(--shadow-btn-hover);
            transform: scale(1.03);
            animation: none;
        }
        .cta-form .btn-submit:active {
            transform: scale(0.96);
        }
        .cta-form .form-note {
            font-size: 0.78rem;
            color: var(--text-muted);
            text-align: center;
            margin-top: 6px;
        }
        .cta-success-msg {
            display: none;
            color: var(--accent-green);
            font-weight: 600;
            font-size: 1rem;
            padding: 12px;
            border-radius: var(--radius-sm);
            background: rgba(43, 217, 168, 0.08);
            border: 1px solid rgba(43, 217, 168, 0.3);
            margin-top: 12px;
            text-align: center;
        }
        .cta-success-msg.show {
            display: block;
            animation: fadeInUp 0.4s ease-out;
        }
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ========== FOOTER ========== */
        #footer {
            background: rgba(8, 12, 26, 0.9);
            border-top: 1px solid transparent;
            border-image: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.3), transparent) 1;
            padding: 36px 0 28px;
            text-align: center;
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 14px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
        }
        .footer-logo .mini-logo {
            width: 24px;
            height: 24px;
            color: var(--accent-cyan);
        }
        .footer-copy {
            font-size: 0.82rem;
            color: var(--text-muted);
            letter-spacing: 0.03em;
        }
        .footer-links {
            display: flex;
            gap: 20px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .footer-links a {
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--accent-cyan);
        }
        .footer-social-dots {
            display: flex;
            gap: 12px;
        }
        .footer-social-dots .social-dot {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid rgba(0, 240, 255, 0.2);
            transition: all var(--transition-smooth);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: default;
        }
        .footer-social-dots .social-dot:hover {
            background: rgba(0, 240, 255, 0.15);
            border-color: rgba(0, 240, 255, 0.5);
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
        }
        .footer-glow-line {
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.2), transparent);
            margin-bottom: 20px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-content {
                gap: 28px;
            }
            .hero-image-wrap {
                flex: 0 0 44%;
            }
            .hero-title {
                font-size: 2.4rem;
            }
            #services .services-grid {
                grid-template-columns: 1fr 1fr;
                grid-template-rows: auto auto;
            }
            .service-card-large {
                grid-row: 1 / 3;
            }
            #stats .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .comparison-wrap {
                flex-direction: column;
                gap: 10px;
            }
            .comparison-divider {
                width: 100%;
                height: 40px;
                flex-direction: row;
                transform: rotate(0);
            }
            .lightning-icon {
                transform: rotate(90deg);
            }
            .section {
                padding: 70px 0;
            }
        }

        @media (max-width: 768px) {
            .nav-desktop,
            .nav-cta-btn.desktop-only {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
            .mobile-nav-panel {
                display: flex;
            }
            .hero-content {
                flex-direction: column;
                text-align: center;
                gap: 24px;
            }
            .hero-image-wrap {
                flex: 0 0 auto;
                width: 100%;
                max-width: 460px;
                aspect-ratio: 16 / 9;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                max-width: 100%;
                font-size: 1rem;
            }
            .hero-btns {
                justify-content: center;
            }
            .hero-marquee {
                font-size: 0.78rem;
                gap: 24px;
            }
            #services .services-grid {
                grid-template-columns: 1fr;
                grid-template-rows: auto;
            }
            .service-card-large {
                grid-row: auto;
            }
            #stats .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .comparison-wrap {
                flex-direction: column;
            }
            .comparison-divider {
                width: 100%;
                height: 32px;
            }
            .lightning-icon {
                transform: rotate(90deg);
                width: 28px;
                height: 28px;
            }
            .cta-card {
                padding: 28px 20px;
            }
            .cta-card h2 {
                font-size: 1.5rem;
            }
            .section-header h2 {
                font-size: 1.7rem;
            }
            .section {
                padding: 50px 0;
            }
            .container {
                padding: 0 16px;
            }
            .header-inner {
                padding: 0 16px;
                height: 60px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.65rem;
            }
            .hero-subtitle {
                font-size: 0.9rem;
            }
            .btn-primary,
            .btn-secondary {
                padding: 12px 22px;
                font-size: 0.9rem;
            }
            #stats .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 18px 12px;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .stat-icon {
                width: 32px;
                height: 32px;
                margin-bottom: 8px;
            }
            .service-card-large {
                padding: 20px 16px;
            }
            .service-card-small {
                padding: 16px 14px;
            }
            .comparison-panel {
                padding: 20px 16px;
            }
            .faq-item summary {
                font-size: 0.95rem;
                padding: 14px 14px;
            }
            .faq-item .faq-answer {
                padding: 0 14px 16px 40px;
            }
            .cta-card {
                padding: 22px 16px;
            }
            .cta-form input {
                padding: 12px 12px;
                font-size: 0.9rem;
            }
            .cta-form .btn-submit {
                padding: 14px 24px;
                font-size: 0.95rem;
            }
            .section-header h2 {
                font-size: 1.45rem;
            }
            .logo-text {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
            }
        }