/* roulang page: index */
:root {
            --bg-primary: #08090F;
            --bg-secondary: #0D111E;
            --bg-card: rgba(13, 17, 30, 0.82);
            --bg-glass: rgba(255, 255, 255, 0.045);
            --border-glass: rgba(255, 255, 255, 0.1);
            --border-neon: rgba(0, 240, 255, 0.28);
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --text-white: #FFFFFF;
            --text-silver: #CBD5E1;
            --text-muted: #94A3B8;
            --gradient-primary: linear-gradient(135deg, #0052FF 0%, #00F0FF 100%);
            --gradient-hover: linear-gradient(135deg, #00F0FF 0%, #0052FF 100%);
            --glow-blue: 0 0 20px rgba(0, 82, 255, 0.42);
            --glow-cyan: 0 0 20px rgba(0, 240, 255, 0.32);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.38);
            --shadow-glow: 0 0 32px rgba(0, 240, 255, 0.14);
            --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-med: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-body: 'Be Vietnam Pro', 'Inter', sans-serif;
            --font-display: 'Be Vietnam Pro', 'Inter', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            background: var(--bg-primary);
            color: var(--text-silver);
            line-height: 1.6;
            overflow-x: hidden;
            position: relative;
            min-height: 100vh;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background:
                radial-gradient(ellipse 68% 55% at 24% -12%, rgba(0, 82, 255, 0.14) 0%, transparent 62%),
                radial-gradient(ellipse 52% 42% at 88% 6%, rgba(0, 240, 255, 0.07) 0%, transparent 56%),
                radial-gradient(ellipse 42% 40% at 62% 88%, rgba(0, 82, 255, 0.06) 0%, transparent 58%),
                var(--bg-primary);
            pointer-events: none;
            z-index: 0;
        }

        body>* {
            position: relative;
            z-index: 1;
        }

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

        a:hover {
            color: #FFFFFF;
            text-decoration: none;
        }

        a:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        button {
            font-family: var(--font-body);
            cursor: pointer;
            border: none;
            transition: var(--transition-fast);
        }

        button:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-pad {
            padding: 72px 0;
        }

        .section-title-block {
            margin-bottom: 44px;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid rgba(0, 240, 255, 0.22);
            padding: 7px 16px;
            border-radius: 30px;
            margin-bottom: 16px;
        }

        .section-eyebrow i {
            font-size: 0.72rem;
            opacity: 0.9;
        }

        .section-title {
            font-family: var(--font-display);
            font-size: clamp(1.65rem, 4vw, 2.35rem);
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
        }

        .section-subtitle {
            font-size: 1.02rem;
            color: var(--text-muted);
            line-height: 1.65;
            max-width: 720px;
        }

        /* NAVIGATION */
        .site-nav {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(8, 9, 15, 0.94);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            box-shadow: 0 2px 24px rgba(0, 0, 0, 0.42);
        }

        .site-nav .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 18px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-display);
            font-size: 1.08rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .nav-logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--gradient-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.05rem;
            color: #FFFFFF;
            box-shadow: var(--glow-blue);
            flex-shrink: 0;
        }

        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
        }

        .nav-links-desktop li {
            margin: 0;
        }

        .nav-links-desktop a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 16px;
            border-radius: 30px;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-silver);
            letter-spacing: 0.01em;
            transition: var(--transition-med);
            border: 1px solid transparent;
        }

        .nav-links-desktop a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(255, 255, 255, 0.1);
        }

        .nav-links-desktop a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
            border-color: rgba(0, 240, 255, 0.28);
        }

        .nav-auth {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .btn-login {
            padding: 10px 18px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18) !important;
            border-radius: 30px;
            font-size: 0.86rem;
            font-weight: 600;
            color: var(--text-white);
            transition: var(--transition-med);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .btn-login:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.32) !important;
            color: #FFFFFF;
        }

        .btn-signup {
            padding: 10px 24px;
            background: var(--gradient-primary);
            border-radius: 30px;
            font-size: 0.86rem;
            font-weight: 700;
            color: #FFFFFF;
            box-shadow: var(--glow-blue);
            transition: var(--transition-med);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border: none;
        }

        .btn-signup:hover {
            background: var(--gradient-hover);
            box-shadow: var(--glow-cyan);
            transform: translateY(-1px);
            color: #FFFFFF;
        }

        .nav-hamburger {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-white);
            font-size: 1.4rem;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition-fast);
        }

        .nav-hamburger:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        .mobile-menu-overlay {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            width: 100%;
            background: rgba(8, 9, 15, 0.98);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            z-index: 55;
            padding: 20px 24px 28px;
            box-shadow: 0 24px 40px rgba(0, 0, 0, 0.5);
        }

        .mobile-menu-overlay.open {
            display: block;
        }

        .mobile-menu-overlay ul {
            list-style: none;
            margin: 0 0 18px;
        }

        .mobile-menu-overlay ul li {
            margin-bottom: 4px;
        }

        .mobile-menu-overlay ul a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-silver);
            transition: var(--transition-fast);
        }

        .mobile-menu-overlay ul a:hover,
        .mobile-menu-overlay ul a.active {
            background: rgba(0, 240, 255, 0.08);
            color: var(--accent-cyan);
        }

        .mobile-auth {
            display: flex;
            gap: 10px;
        }

        /* HERO */
        .hero-section {
            padding: 28px 0 0;
            position: relative;
        }

        .hero-top-strip {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            padding: 12px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 28px;
        }

        .hero-top-strip-left {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.86rem;
            font-weight: 600;
            color: var(--text-silver);
        }

        .hero-top-strip-left .live-dot {
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: #00F0FF;
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.7);
            animation: pulse-dot 1.6s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.45; transform: scale(0.8); }
        }

        .hero-top-strip-right {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .hero-top-strip-right span {
            display: flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
        }

        .hero-banner {
            display: grid;
            grid-template-columns: 1fr 0.88fr;
            gap: 36px;
            align-items: center;
            background: linear-gradient(160deg, rgba(0, 82, 255, 0.12) 0%, rgba(13, 17, 30, 0.55) 46%, rgba(0, 240, 255, 0.06) 100%);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-xl);
            padding: 40px 44px;
            backdrop-filter: blur(12px);
            box-shadow: var(--shadow-card), var(--shadow-glow);
            min-height: 380px;
            position: relative;
            overflow: hidden;
        }

        .hero-banner::after {
            content: '';
            position: absolute;
            top: -42%;
            right: -18%;
            width: 480px;
            height: 480px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.14) 0%, transparent 64%);
            pointer-events: none;
            border-radius: 50%;
        }

        .hero-banner::before {
            content: '';
            position: absolute;
            bottom: -36%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0, 82, 255, 0.12) 0%, transparent 62%);
            pointer-events: none;
            border-radius: 50%;
        }

        .hero-left {
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.09);
            border: 1px solid rgba(0, 240, 255, 0.24);
            padding: 7px 16px;
            border-radius: 30px;
            margin-bottom: 18px;
        }

        .hero-badge i {
            font-size: 0.72rem;
        }

        .hero-title {
            font-family: var(--font-display);
            font-size: clamp(1.85rem, 5vw, 2.8rem);
            font-weight: 900;
            color: var(--text-white);
            line-height: 1.16;
            letter-spacing: -0.025em;
            margin-bottom: 14px;
        }

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

        .hero-desc {
            font-size: 1.04rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 560px;
            margin-bottom: 26px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }

        .btn-primary-glow {
            padding: 14px 32px;
            background: var(--gradient-primary);
            border-radius: 34px;
            font-size: 0.96rem;
            font-weight: 700;
            color: #FFFFFF;
            box-shadow: var(--glow-blue);
            transition: var(--transition-med);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            border: none;
        }

        .btn-primary-glow:hover {
            background: var(--gradient-hover);
            box-shadow: var(--glow-cyan);
            transform: translateY(-2px);
            color: #FFFFFF;
        }

        .btn-secondary-outline {
            padding: 14px 28px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.22) !important;
            border-radius: 34px;
            font-size: 0.94rem;
            font-weight: 600;
            color: var(--text-white);
            transition: var(--transition-med);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-secondary-outline:hover {
            border-color: rgba(0, 240, 255, 0.5) !important;
            background: rgba(0, 240, 255, 0.06);
            color: var(--accent-cyan);
        }

        .hero-right {
            position: relative;
            z-index: 2;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-image-wrapper {
            position: relative;
            width: 100%;
            max-width: 430px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.14);
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
        }

        .hero-image-wrapper img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 16/10;
        }

        .hero-image-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(48deg, rgba(8, 9, 15, 0.55) 0%, transparent 55%, rgba(0, 240, 255, 0.1) 100%);
            pointer-events: none;
        }

        .hero-image-tag {
            position: absolute;
            bottom: 14px;
            left: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(8, 9, 15, 0.82);
            border: 1px solid rgba(0, 240, 255, 0.3);
            border-radius: 30px;
            padding: 8px 16px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--accent-cyan);
            backdrop-filter: blur(8px);
        }

        /* METRICS BOARD */
        .metrics-board {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
            padding: 8px 0 0;
        }

        .metric-card {
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            text-align: left;
            backdrop-filter: blur(10px);
            transition: var(--transition-med);
            position: relative;
            overflow: hidden;
        }

        .metric-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 100%;
            background: var(--gradient-primary);
            opacity: 0.7;
        }

        .metric-card:hover {
            border-color: var(--border-neon);
            box-shadow: var(--shadow-glow);
            transform: translateY(-3px);
        }

        .metric-number {
            font-family: var(--font-display);
            font-size: 1.85rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.15;
            margin-bottom: 6px;
        }

        .metric-label {
            font-size: 0.86rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .metric-icon {
            position: absolute;
            top: 16px;
            right: 16px;
            font-size: 1.15rem;
            color: var(--accent-cyan);
            opacity: 0.65;
        }

        /* SERVICE MATRIX */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .service-card {
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 26px 24px;
            backdrop-filter: blur(10px);
            transition: var(--transition-med);
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            border-color: var(--border-neon);
            box-shadow: var(--shadow-glow);
            transform: translateY(-4px);
        }

        .service-card-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.26);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            color: var(--accent-cyan);
            margin-bottom: 16px;
        }

        .service-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }

        .service-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        /* PROMO SPOTLIGHT */
        .promo-band {
            background: linear-gradient(145deg, rgba(0, 82, 255, 0.1) 0%, rgba(13, 17, 30, 0.7) 42%, rgba(0, 240, 255, 0.06) 100%);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-xl);
            padding: 42px 40px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }

        .promo-band-left h2 {
            font-size: 1.65rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .promo-band-left p {
            font-size: 0.98rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
            max-width: 520px;
        }

        .promo-band-right {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: flex-end;
        }

        .promo-code-chip {
            background: rgba(0, 240, 255, 0.09);
            border: 1px solid rgba(0, 240, 255, 0.3);
            border-radius: 12px;
            padding: 12px 18px;
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--accent-cyan);
            letter-spacing: 0.04em;
            transition: var(--transition-med);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .promo-code-chip:hover {
            background: rgba(0, 240, 255, 0.16);
            box-shadow: var(--glow-cyan);
        }

        /* COMPARISON */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .comparison-panel {
            border-radius: var(--radius-lg);
            padding: 32px 30px;
            backdrop-filter: blur(10px);
            transition: var(--transition-med);
        }

        .comparison-panel.positive {
            background: rgba(0, 240, 255, 0.05);
            border: 1px solid rgba(0, 240, 255, 0.28);
        }

        .comparison-panel.negative {
            background: rgba(255, 255, 255, 0.025);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .comparison-panel:hover {
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        .comparison-panel-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 20px;
        }

        .comparison-panel-header .icon-wrap {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
        }

        .comparison-panel.positive .icon-wrap {
            background: rgba(0, 240, 255, 0.13);
            border: 1px solid rgba(0, 240, 255, 0.32);
            color: var(--accent-cyan);
        }

        .comparison-panel.negative .icon-wrap {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: var(--text-muted);
        }

        .comparison-panel-header h3 {
            font-size: 1.18rem;
            font-weight: 700;
            color: var(--text-white);
            margin: 0;
        }

        .comparison-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 9px 0;
            font-size: 0.92rem;
            color: var(--text-silver);
            line-height: 1.55;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .comparison-list li:last-child {
            border-bottom: none;
        }

        .comparison-list li i {
            font-size: 0.9rem;
            margin-top: 3px;
            flex-shrink: 0;
        }

        .comparison-panel.positive .comparison-list li i {
            color: var(--accent-cyan);
        }

        .comparison-panel.negative .comparison-list li i {
            color: rgba(148, 163, 184, 0.5);
        }

        /* CMS NEWS LISTING */
        .news-layout {
            display: grid;
            grid-template-columns: 1.55fr 0.85fr;
            gap: 28px;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .news-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            transition: var(--transition-med);
        }

        .news-item:hover {
            border-color: var(--border-neon);
            box-shadow: var(--shadow-glow);
            transform: translateX(4px);
        }

        .news-item-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(0, 82, 255, 0.1);
            border: 1px solid rgba(0, 82, 255, 0.22);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--accent-cyan);
            flex-shrink: 0;
        }

        .news-item-body {
            flex: 1;
            min-width: 0;
        }

        .news-item-title {
            font-size: 0.96rem;
            font-weight: 600;
            color: var(--text-white);
            display: block;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            margin-bottom: 4px;
            transition: var(--transition-fast);
        }

        .news-item-title:hover {
            color: var(--accent-cyan);
        }

        .news-item-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .news-item-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .news-side {
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 26px 24px;
            backdrop-filter: blur(10px);
        }

        .news-side h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .news-side-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .news-side-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            border-radius: 8px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-silver);
            transition: var(--transition-fast);
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid transparent;
        }

        .news-side-link:hover {
            background: rgba(0, 240, 255, 0.06);
            border-color: rgba(0, 240, 255, 0.2);
            color: var(--accent-cyan);
        }

        .news-side-link i {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* FAQ */
        .faq-container {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 0;
            margin-bottom: 12px;
            overflow: hidden;
            backdrop-filter: blur(10px);
            transition: var(--transition-med);
        }

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            background: transparent;
            border: none;
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-white);
            text-align: left;
            transition: var(--transition-fast);
        }

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

        .faq-question .faq-toggle-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.14);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: var(--text-muted);
            transition: var(--transition-med);
        }

        .faq-question:hover .faq-toggle-icon {
            background: rgba(0, 240, 255, 0.12);
            border-color: rgba(0, 240, 255, 0.3);
            color: var(--accent-cyan);
        }

        .faq-answer {
            padding: 0 22px 20px;
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }

        .faq-answer.open {
            display: block;
        }

        /* CTA SECTION */
        .cta-ribbon {
            background: linear-gradient(145deg, rgba(0, 82, 255, 0.16) 0%, rgba(13, 17, 30, 0.78) 44%, rgba(0, 240, 255, 0.09) 100%);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            backdrop-filter: blur(12px);
            box-shadow: var(--shadow-card), var(--shadow-glow);
        }

        .cta-ribbon h2 {
            font-size: clamp(1.5rem, 3.5vw, 2rem);
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .cta-ribbon p {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 620px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }

        /* FOOTER */
        .site-footer {
            background: rgba(5, 6, 10, 0.96);
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            padding: 52px 0 28px;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 14px 0 0;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 14px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul a {
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: var(--transition-fast);
        }

        .footer-col ul a:hover {
            color: var(--accent-cyan);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin: 0;
        }

        .footer-badges {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.76rem;
            font-weight: 600;
            color: var(--text-silver);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 20px;
            padding: 6px 14px;
        }

        /* FAB */
        .fab-promo {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(8, 9, 15, 0.78);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(8, 9, 15, 0.78), rgba(8, 9, 15, 0.78)), linear-gradient(135deg, #00F0FF, #0052FF);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #00F0FF;
            box-shadow: 0 0 22px rgba(0, 240, 255, 0.45), 0 8px 24px rgba(0, 0, 0, 0.5);
            transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            animation: fab-breathe 3s ease-in-out infinite;
            cursor: pointer;
        }

        @keyframes fab-breathe {
            0%, 100% { opacity: 0.62; }
            50% { opacity: 1; }
        }

        .fab-promo:hover {
            opacity: 1;
            transform: scale(1.18);
            box-shadow: 0 0 38px rgba(0, 240, 255, 0.66), 0 12px 30px rgba(0, 0, 0, 0.58);
            animation: none;
        }

        .fab-promo:active {
            transform: scale(0.92) translateY(2px);
            border-image-source: linear-gradient(135deg, #FF007F, #00F0FF);
            animation: none;
        }

        .fab-promo .fab-notification {
            position: absolute;
            top: -3px;
            right: -3px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #FF007F;
            box-shadow: 0 0 10px rgba(255, 0, 127, 0.85);
            animation: fab-notif-blink 1.8s infinite;
        }

        @keyframes fab-notif-blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* RESPONSIVE */
        @media screen and (max-width: 1024px) {
            .hero-banner {
                grid-template-columns: 1fr;
                padding: 32px 28px;
                gap: 24px;
            }
            .hero-right {
                order: -1;
                max-width: 440px;
                margin: 0 auto;
            }
            .hero-image-wrapper {
                max-width: 100%;
            }
            .metrics-board {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .comparison-grid {
                grid-template-columns: 1fr;
            }
            .promo-band {
                grid-template-columns: 1fr;
                padding: 32px 28px;
            }
            .promo-band-right {
                justify-content: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media screen and (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .section-pad {
                padding: 52px 0;
            }
            .site-nav .container {
                min-height: 62px;
            }
            .nav-links-desktop {
                display: none;
            }
            .nav-hamburger {
                display: block;
            }
            .nav-auth {
                gap: 6px;
            }
            .btn-login {
                padding: 8px 12px;
                font-size: 0.78rem;
            }
            .btn-signup {
                padding: 8px 16px;
                font-size: 0.78rem;
            }
            .nav-logo {
                font-size: 0.92rem;
            }
            .nav-logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
                border-radius: 8px;
            }
            .hero-top-strip {
                padding: 10px 14px;
                font-size: 0.76rem;
            }
            .hero-section {
                padding: 16px 0 0;
            }
            .hero-banner {
                padding: 22px 18px;
                border-radius: var(--radius-md);
                min-height: auto;
            }
            .hero-badge {
                font-size: 0.68rem;
                padding: 5px 12px;
            }
            .hero-title {
                font-size: 1.55rem;
            }
            .hero-desc {
                font-size: 0.9rem;
                margin-bottom: 18px;
            }
            .hero-actions {
                gap: 10px;
            }
            .btn-primary-glow,
            .btn-secondary-outline {
                padding: 11px 20px;
                font-size: 0.86rem;
            }
            .metrics-board {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .metric-card {
                padding: 16px 14px;
            }
            .metric-number {
                font-size: 1.35rem;
            }
            .metric-label {
                font-size: 0.76rem;
            }
            .service-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .service-card {
                padding: 20px 18px;
            }
            .comparison-panel {
                padding: 22px 18px;
            }
            .news-item {
                padding: 13px 14px;
                gap: 12px;
            }
            .news-item-icon {
                width: 36px;
                height: 36px;
                font-size: 0.85rem;
            }
            .news-item-title {
                font-size: 0.88rem;
            }
            .cta-ribbon {
                padding: 32px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .fab-promo {
                left: 12px;
                bottom: 72px;
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
        }

        @media screen and (max-width: 520px) {
            .site-nav .container {
                min-height: 56px;
                gap: 8px;
            }
            .nav-logo {
                font-size: 0.78rem;
                gap: 6px;
            }
            .nav-logo-icon {
                width: 27px;
                height: 27px;
                font-size: 0.75rem;
                border-radius: 7px;
            }
            .btn-login,
            .btn-signup {
                padding: 7px 10px;
                font-size: 0.72rem;
                gap: 4px;
            }
            .hero-top-strip {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
                padding: 8px 12px;
                border-radius: 8px;
            }
            .hero-banner {
                padding: 18px 14px;
            }
            .hero-title {
                font-size: 1.32rem;
            }
            .hero-desc {
                font-size: 0.84rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-primary-glow,
            .btn-secondary-outline {
                justify-content: center;
                width: 100%;
            }
            .metrics-board {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .section-subtitle {
                font-size: 0.88rem;
            }
            .promo-band {
                padding: 22px 16px;
                border-radius: var(--radius-md);
            }
            .promo-code-chip {
                font-size: 0.76rem;
                padding: 9px 12px;
            }
            .comparison-list li {
                font-size: 0.84rem;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.88rem;
            }
            .faq-answer {
                padding: 0 16px 16px;
                font-size: 0.84rem;
            }
            .cta-ribbon {
                padding: 26px 16px;
                border-radius: var(--radius-md);
            }
            .cta-ribbon h2 {
                font-size: 1.3rem;
            }
            .cta-ribbon p {
                font-size: 0.88rem;
            }
            .footer-col h4 {
                font-size: 0.8rem;
            }
            .footer-col ul a {
                font-size: 0.8rem;
            }
        }

/* roulang page: article */
:root {
            --bg: #0D111E;
            --bg-secondary: #131827;
            --surface: rgba(255,255,255,0.04);
            --surface-hover: rgba(255,255,255,0.08);
            --border: rgba(0,240,255,0.18);
            --border-strong: rgba(0,240,255,0.35);
            --text: #FFFFFF;
            --text-muted: #A6ACAF;
            --accent: #00F0FF;
            --accent2: #0052FF;
            --danger: #FF3B4E;
            --glow: 0 0 15px rgba(0,240,255,0.4);
            --glow-lg: 0 0 30px rgba(0,240,255,0.6);
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 22px;
            --shadow-card: 0 12px 30px rgba(0,0,0,0.35);
            --font: 'Segoe UI', 'Inter', -apple-system, BlinkMacSystemFont, 'Roboto', 'Helvetica Neue', sans-serif;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color .2s ease;
        }
        a:hover {
            color: #7df9ff;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            outline: none;
        }
        h1, h2, h3, h4, h5 {
            font-weight: 700;
            line-height: 1.3;
            margin-top: 0;
        }
        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }
        .container-fluid {
            max-width: 100%;
        }
        .text-center {
            text-align: center;
        }
        .text-muted {
            color: var(--text-muted);
        }
        .mb-1 { margin-bottom: .5rem; }
        .mb-2 { margin-bottom: 1rem; }
        .mb-3 { margin-bottom: 1.5rem; }
        .mb-4 { margin-bottom: 2rem; }
        .mt-4 { margin-top: 2rem; }
        .mt-5 { margin-top: 3rem; }
        .pt-4 { padding-top: 2rem; }
        .pb-4 { padding-bottom: 2rem; }
        .grid-x {
            margin-left: -0.5rem;
            margin-right: -0.5rem;
        }
        .cell {
            padding-left: 0.5rem;
            padding-right: 0.5rem;
        }
        /* Header / Nav */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(13,17,30,0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 4px 20px rgba(0,0,0,0.3);
        }
        .site-nav .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
        }
        .nav-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text);
            letter-spacing: 0.3px;
        }
        .nav-logo:hover {
            color: var(--text);
            transform: translateY(-1px);
        }
        .nav-logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent2), var(--accent));
            color: #000;
            font-size: 1.1rem;
            box-shadow: 0 0 12px rgba(0,240,255,0.5);
        }
        .nav-links-desktop {
            list-style: none;
            display: flex;
            gap: 1.5rem;
            margin: 0;
            padding: 0;
        }
        .nav-links-desktop a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--text-muted);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 0;
            position: relative;
            transition: color .2s;
        }
        .nav-links-desktop a:hover,
        .nav-links-desktop a.active {
            color: var(--accent);
        }
        .nav-links-desktop a.active::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            height: 2px;
            width: 100%;
            background: var(--accent);
            box-shadow: 0 0 8px var(--accent);
        }
        .nav-auth {
            display: flex;
            align-items: center;
            gap: 0.7rem;
        }
        .btn-login,
        .btn-signup {
            border: none;
            border-radius: 50px;
            padding: 10px 18px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all .25s;
        }
        .btn-login {
            background: transparent;
            color: var(--text);
            border: 1px solid var(--border-strong);
        }
        .btn-login:hover {
            background: var(--surface);
            border-color: var(--accent);
        }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent2), var(--accent));
            color: #000;
            box-shadow: 0 0 18px rgba(0,240,255,0.5);
        }
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(0,240,255,0.8);
        }
        .nav-hamburger {
            display: none;
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text);
            font-size: 1.3rem;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
        }
        .mobile-menu-overlay {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            background: rgba(13,17,30,0.98);
            border-bottom: 1px solid var(--border);
            padding: 1.5rem 1rem;
            z-index: 999;
            flex-direction: column;
            gap: 1rem;
        }
        .mobile-menu-overlay.open {
            display: flex;
        }
        .mobile-menu-overlay ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .mobile-menu-overlay a {
            color: var(--text);
            font-weight: 500;
            font-size: 1rem;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 0;
        }
        .mobile-menu-overlay a.active {
            color: var(--accent);
        }
        .mobile-auth {
            display: flex;
            gap: 0.8rem;
            margin-top: 0.8rem;
        }
        .mobile-auth .btn-login,
        .mobile-auth .btn-signup {
            flex: 1;
            text-align: center;
        }
        /* Body spacing to offset fixed header */
        body {
            padding-top: 68px;
        }
        /* Article specific */
        .article-main {
            padding: 2rem 0 4rem;
            background: radial-gradient(circle at 20% 10%, rgba(0,82,255,0.12), transparent 40%), var(--bg);
        }
        .article-layout {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
        }
        .article-main-col {
            flex: 1 1 0%;
            min-width: 0;
        }
        .article-sidebar {
            flex: 0 0 300px;
            max-width: 300px;
        }
        .article-header {
            background: linear-gradient(135deg, rgba(0,82,255,0.2), rgba(0,240,255,0.08)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 2.2rem 2rem;
            margin-bottom: 2rem;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .article-header::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(145deg, rgba(13,17,30,0.7) 0%, rgba(13,17,30,0.4) 100%);
            border-radius: var(--radius-lg);
        }
        .article-header > * {
            position: relative;
            z-index: 1;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 1.2rem;
        }
        .article-meta .badge {
            background: rgba(0,240,255,0.12);
            border: 1px solid var(--border-strong);
            color: var(--accent);
            padding: 5px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta .date {
            color: var(--text-muted);
            font-size: 0.85rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-header h1 {
            font-size: 2.3rem;
            color: var(--text);
            margin-bottom: 1rem;
        }
        .article-excerpt {
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 700px;
            line-height: 1.6;
        }
        .article-content {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 2rem;
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(8px);
            color: #d1d5db;
        }
        .article-content p {
            line-height: 1.7;
            margin-bottom: 1.2rem;
        }
        .article-content h2 {
            color: var(--text);
            font-size: 1.6rem;
            margin-top: 2rem;
            margin-bottom: 1rem;
        }
        .article-content h3 {
            color: var(--text);
            font-size: 1.3rem;
            margin-top: 1.5rem;
        }
        .article-content a {
            color: var(--accent);
            font-weight: 500;
        }
        .article-content img {
            border-radius: var(--radius);
            margin: 1.5rem 0;
            box-shadow: 0 8px 20px rgba(0,0,0,0.3);
        }
        .not-found {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 3rem 2rem;
            text-align: center;
            max-width: 600px;
            margin: 3rem auto;
        }
        .not-found h2 {
            font-size: 1.8rem;
            color: var(--accent);
        }
        .btn-primary {
            display: inline-block;
            background: linear-gradient(135deg, var(--accent2), var(--accent));
            color: #000;
            border: none;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            transition: all .3s;
            box-shadow: 0 0 20px rgba(0,240,255,0.5);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 35px rgba(0,240,255,0.8);
            color: #000;
        }
        /* Sidebar */
        .sidebar-widget {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            backdrop-filter: blur(8px);
        }
        .sidebar-widget h3 {
            font-size: 1.1rem;
            color: var(--accent);
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-widget ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .sidebar-widget li {
            margin-bottom: 0.8rem;
        }
        .sidebar-widget a {
            color: var(--text-muted);
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color .2s;
        }
        .sidebar-widget a:hover {
            color: var(--accent);
        }
        .promo-mini-card {
            background: rgba(0,240,255,0.05);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius);
            padding: 1rem;
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        .promo-mini-card img {
            width: 56px;
            height: 56px;
            border-radius: 10px;
            object-fit: cover;
        }
        .promo-mini-card .info h4 {
            font-size: 0.95rem;
            color: var(--text);
            margin-bottom: 5px;
        }
        .promo-mini-card .info p {
            font-size: 0.8rem;
            color: var(--accent);
            margin: 0;
        }
        /* Data-driven metrics strip */
        .metrics-strip {
            background: linear-gradient(135deg, rgba(0,82,255,0.15), rgba(0,240,255,0.05));
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            margin: 3rem 0;
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            justify-content: space-around;
            box-shadow: var(--shadow-card);
        }
        .metric-item {
            text-align: center;
            flex: 1;
            min-width: 120px;
        }
        .metric-item .value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent);
            text-shadow: 0 0 15px rgba(0,240,255,0.5);
            line-height: 1;
        }
        .metric-item .label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 5px;
        }
        /* Promo matrix */
        .promo-matrix {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin: 3rem 0;
        }
        .promo-card {
            flex: 1 1 250px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            transition: all .3s;
            box-shadow: var(--shadow-card);
        }
        .promo-card:hover {
            background: var(--surface-hover);
            border-color: var(--border-strong);
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0,0,0,0.5), 0 0 20px rgba(0,240,255,0.2);
        }
        .promo-card .icon {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 1rem;
        }
        .promo-card h3 {
            font-size: 1.3rem;
            color: var(--text);
        }
        .promo-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        .promo-card .btn-outline {
            display: inline-block;
            margin-top: 1rem;
            padding: 8px 20px;
            border: 1px solid var(--accent);
            border-radius: 50px;
            color: var(--accent);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all .25s;
        }
        .promo-card .btn-outline:hover {
            background: var(--accent);
            color: #000;
        }
        /* Comparison table */
        .comparison-section {
            margin: 3rem 0;
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
        }
        .comparison-table th {
            background: rgba(0,240,255,0.08);
            color: var(--accent);
            font-weight: 700;
            padding: 1rem;
            text-align: left;
            border-bottom: 1px solid var(--border);
        }
        .comparison-table td {
            padding: 1rem;
            border-bottom: 1px solid var(--border);
            color: var(--text-muted);
        }
        .comparison-table tr:last-child td {
            border-bottom: none;
        }
        .comparison-table .highlight {
            color: var(--accent);
            font-weight: 700;
        }
        /* FAQ */
        .faq-section {
            margin: 3rem 0;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 1rem;
            overflow: hidden;
        }
        .faq-question {
            padding: 1rem 1.5rem;
            font-weight: 600;
            color: var(--text);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: background .2s;
        }
        .faq-question:hover {
            background: rgba(0,240,255,0.05);
        }
        .faq-question .fa-chevron-down {
            transition: transform .3s;
        }
        .faq-item.active .fa-chevron-down {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease;
            color: var(--text-muted);
            padding: 0 1.5rem;
        }
        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0 1.5rem 1.2rem;
        }
        /* CTA Form */
        .cta-section {
            background: linear-gradient(135deg, rgba(0,82,255,0.25), rgba(0,240,255,0.1));
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-lg);
            padding: 3rem 2rem;
            margin-top: 4rem;
            text-align: left;
            box-shadow: 0 0 40px rgba(0,82,255,0.2);
        }
        .cta-section h2 {
            font-size: 2rem;
        }
        .cta-form {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .cta-form input {
            flex: 1;
            min-width: 220px;
            padding: 12px 20px;
            border-radius: 50px;
            border: 1px solid var(--border-strong);
            background: rgba(255,255,255,0.06);
            color: var(--text);
            outline: none;
            font-size: 1rem;
        }
        .cta-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 12px rgba(0,240,255,0.4);
        }
        .cta-form .btn-primary {
            flex: 0 0 auto;
        }
        /* Footer */
        .site-footer {
            background: #0A0E16;
            border-top: 1px solid var(--border);
            padding: 3rem 0 2rem;
            margin-top: 2rem;
        }
        .footer-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            justify-content: space-between;
        }
        .footer-brand {
            flex: 0 0 260px;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .footer-col {
            flex: 1;
            min-width: 160px;
        }
        .footer-col h4 {
            color: var(--accent);
            font-size: 1rem;
            margin-bottom: 1rem;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col li {
            margin-bottom: 0.6rem;
        }
        .footer-col a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: color .2s;
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            margin-top: 2rem;
            padding-top: 1.5rem;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .footer-bottom a {
            color: var(--accent);
        }
        /* FAB */
        .fab-support {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50px;
            background: rgba(0,0,0,0.6);
            backdrop-filter: blur(8px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), linear-gradient(135deg, #CCFF00, #0052FF);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            box-shadow: 0 0 15px rgba(0,240,255,0.5);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1.5rem;
            cursor: pointer;
            opacity: 0.7;
            transition: all .3s;
            animation: breathing 3s infinite;
        }
        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(0,240,255,0.9);
            animation: none;
        }
        .fab-support:active {
            transform: scale(0.95);
        }
        .fab-support .badge-dot {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 16px;
            height: 16px;
            background: var(--danger);
            border-radius: 50%;
            border: 2px solid #0D111E;
            animation: blink-dot 1.5s infinite;
        }
        @keyframes breathing {
            0%,100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        @keyframes blink-dot {
            0%,100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .article-layout {
                flex-direction: column;
            }
            .article-sidebar {
                flex: 0 0 100%;
                max-width: 100%;
            }
            .article-sidebar .sidebar-widget {
                margin-bottom: 1rem;
            }
            .nav-links-desktop {
                gap: 1rem;
            }
        }
        @media (max-width: 768px) {
            .site-nav .container {
                min-height: 60px;
            }
            .nav-links-desktop {
                display: none;
            }
            .nav-hamburger {
                display: inline-flex;
            }
            body {
                padding-top: 60px;
            }
            .mobile-menu-overlay {
                top: 60px;
            }
            .article-header h1 {
                font-size: 1.8rem;
            }
            .article-content {
                padding: 1.2rem;
            }
            .metrics-strip {
                gap: 1rem;
            }
            .metric-item .value {
                font-size: 1.8rem;
            }
            .promo-matrix {
                flex-direction: column;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .footer-grid {
                flex-direction: column;
            }
            .footer-brand {
                flex: 0 0 100%;
            }
            .fab-support {
                left: 12px;
                bottom: 80px;
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
        }
        @media (max-width: 520px) {
            .article-header {
                padding: 1.5rem;
            }
            .article-meta {
                gap: 0.7rem;
            }
            .article-header h1 {
                font-size: 1.5rem;
            }
            .btn-login, .btn-signup {
                padding: 8px 12px;
                font-size: 0.8rem;
            }
            .mobile-auth {
                flex-direction: column;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0A0E1A;
            --bg-secondary: #0D1226;
            --bg-tertiary: #111832;
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --accent-pink: #FF007F;
            --text-light: #FFFFFF;
            --text-body: #E2E8F0;
            --text-muted: #CBD5E1;
            --text-soft: #94A3B8;
            --border-subtle: rgba(255, 255, 255, 0.1);
            --border-glow: rgba(0, 240, 255, 0.35);
            --card-glass: rgba(255, 255, 255, 0.06);
            --card-hover: rgba(255, 255, 255, 0.1);
            --glow-blue: 0 0 20px rgba(0, 82, 255, 0.45);
            --glow-cyan: 0 0 20px rgba(0, 240, 255, 0.45);
            --glow-pink: 0 0 18px rgba(255, 0, 127, 0.4);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 28px;
            --spacing-lg: 48px;
            --spacing-xl: 72px;
        }
        
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        
        body {
            font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            background: var(--bg-primary);
            color: var(--text-body);
            line-height: 1.6;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        
        a:hover,
        a:focus {
            color: var(--accent-cyan);
            outline: none;
        }
        
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
        }
        
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            transition: all 0.3s ease;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        
        /* ===== NAVIGATION ===== */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 90;
            background: rgba(10, 14, 26, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            height: 68px;
            display: flex;
            align-items: center;
        }
        
        .site-nav .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 16px;
        }
        
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.05rem;
            color: var(--text-light);
            letter-spacing: 0.3px;
            white-space: nowrap;
            flex-shrink: 0;
            text-decoration: none;
        }
        
        .nav-logo:hover,
        .nav-logo:focus {
            color: var(--text-light);
        }
        
        .nav-logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #fff;
            font-size: 1rem;
            box-shadow: var(--glow-cyan);
        }
        
        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
        }
        
        .nav-links-desktop li {
            margin: 0;
        }
        
        .nav-links-desktop a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: 25px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-muted);
            white-space: nowrap;
            position: relative;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .nav-links-desktop a:hover,
        .nav-links-desktop a:focus {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.07);
        }
        
        .nav-links-desktop a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.1);
            box-shadow: inset 0 0 0 1px var(--border-glow);
        }
        
        .nav-links-desktop a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 2px;
            box-shadow: 0 0 8px var(--accent-cyan);
        }
        
        .nav-auth {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        
        .btn-login {
            padding: 8px 16px;
            border-radius: 22px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--text-light);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: all 0.3s ease;
            white-space: nowrap;
        }
        
        .btn-login:hover,
        .btn-login:focus {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.06);
        }
        
        .btn-signup {
            padding: 8px 18px;
            border-radius: 22px;
            font-size: 0.82rem;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-blue), #0077FF);
            box-shadow: var(--glow-blue);
            white-space: nowrap;
        }
        
        .btn-signup:hover,
        .btn-signup:focus {
            box-shadow: 0 0 28px rgba(0, 82, 255, 0.7);
            transform: translateY(-2px);
            color: #fff;
        }
        
        .nav-hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--text-light);
            font-size: 1.35rem;
            padding: 6px 10px;
            border-radius: 8px;
            transition: all 0.3s ease;
        }
        
        .nav-hamburger:hover,
        .nav-hamburger:focus {
            color: var(--accent-cyan);
            background: rgba(255, 255, 255, 0.06);
        }
        
        .mobile-menu-overlay {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            background: rgba(10, 14, 26, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 20px;
            z-index: 85;
            max-height: calc(100vh - 68px);
            overflow-y: auto;
        }
        
        .mobile-menu-overlay.open {
            display: block;
        }
        
        .mobile-menu-overlay ul {
            list-style: none;
            margin: 0 0 18px;
            padding: 0;
        }
        
        .mobile-menu-overlay ul li {
            margin-bottom: 4px;
        }
        
        .mobile-menu-overlay ul a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 14px;
            border-radius: 12px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-muted);
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .mobile-menu-overlay ul a:hover,
        .mobile-menu-overlay ul a:focus {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-light);
        }
        
        .mobile-menu-overlay ul a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
        }
        
        .mobile-auth {
            display: flex;
            gap: 10px;
            padding-top: 8px;
            border-top: 1px solid var(--border-subtle);
        }
        
        .mobile-auth .btn-login,
        .mobile-auth .btn-signup {
            flex: 1;
            text-align: center;
            padding: 12px;
            font-size: 0.9rem;
        }
        
        /* ===== HERO ===== */
        .hero-section {
            padding: 120px 0 60px;
            background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 55%);
            position: relative;
            overflow: hidden;
        }
        
        .hero-section::before {
            content: '';
            position: absolute;
            top: -180px;
            right: -180px;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 82, 255, 0.25) 0%, transparent 70%);
            pointer-events: none;
        }
        
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -150px;
            left: -150px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }
        
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 44px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        
        .hero-copy h1 {
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-light);
            margin-bottom: 18px;
            letter-spacing: 0.2px;
        }
        
        .hero-copy h1 .highlight {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: none;
        }
        
        .hero-copy p {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 26px;
            line-height: 1.7;
            max-width: 520px;
        }
        
        .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        
        .btn-primary-glow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 26px;
            border-radius: 30px;
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-blue), #0066FF);
            box-shadow: var(--glow-blue);
            transition: all 0.3s ease;
            text-decoration: none;
        }
        
        .btn-primary-glow:hover,
        .btn-primary-glow:focus {
            box-shadow: 0 0 32px rgba(0, 82, 255, 0.75);
            transform: translateY(-3px);
            color: #fff;
        }
        
        .btn-secondary-glow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 24px;
            border-radius: 30px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid var(--border-glow);
            box-shadow: 0 0 14px rgba(0, 240, 255, 0.15);
            transition: all 0.3s ease;
            text-decoration: none;
        }
        
        .btn-secondary-glow:hover,
        .btn-secondary-glow:focus {
            background: rgba(0, 240, 255, 0.15);
            box-shadow: var(--glow-cyan);
            color: var(--accent-cyan);
            transform: translateY(-2px);
        }
        
        /* Hero data panel */
        .hero-data-panel {
            background: var(--card-glass);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-md);
            position: relative;
            overflow: hidden;
        }
        
        .hero-data-panel::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent-cyan), var(--accent-blue), transparent);
        }
        
        .hero-data-label {
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--accent-cyan);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        
        .hero-data-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
            margin-bottom: 18px;
        }
        
        .hero-data-card {
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: all 0.3s ease;
        }
        
        .hero-data-card:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--border-glow);
        }
        
        .hero-data-card .data-number {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-light);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        
        .hero-data-card .data-number span {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-cyan);
            margin-left: 4px;
        }
        
        .hero-data-card .data-label {
            font-size: 0.78rem;
            color: var(--text-soft);
        }
        
        .hero-data-ticker {
            background: rgba(0, 240, 255, 0.06);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            display: flex;
            align-items: center;
            gap: 10px;
            border: 1px solid rgba(0, 240, 255, 0.15);
        }
        
        .hero-data-ticker .pulse-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #00E878;
            box-shadow: 0 0 10px #00E878;
            animation: pulseDot 1.5s ease-in-out infinite;
            flex-shrink: 0;
        }
        
        @keyframes pulseDot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(0.7); }
        }
        
        .hero-data-ticker span {
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        
        .hero-data-ticker strong {
            color: var(--accent-cyan);
            font-weight: 700;
        }
        
        /* ===== METRICS DASHBOARD ===== */
        .metrics-section {
            padding: 50px 0 60px;
            background: var(--bg-primary);
        }
        
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        
        .metric-card {
            background: var(--card-glass);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            text-align: center;
            transition: all 0.35s ease;
            position: relative;
            overflow: hidden;
        }
        
        .metric-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 50px;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 2px;
            transition: width 0.35s ease;
        }
        
        .metric-card:hover {
            background: var(--card-hover);
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-glow);
        }
        
        .metric-card:hover::after {
            width: 120px;
        }
        
        .metric-icon {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: rgba(0, 240, 255, 0.1);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.15rem;
            margin-bottom: 12px;
        }
        
        .metric-value {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--text-light);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        
        .metric-label {
            font-size: 0.8rem;
            color: var(--text-soft);
            font-weight: 500;
        }
        
        /* ===== SERVICES MATRIX ===== */
        .services-section {
            padding: 60px 0;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }
        
        .section-heading {
            margin-bottom: 36px;
        }
        
        .section-heading h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 10px;
            letter-spacing: 0.2px;
        }
        
        .section-heading p {
            font-size: 0.95rem;
            color: var(--text-soft);
            max-width: 620px;
            line-height: 1.7;
        }
        
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        
        .service-card {
            background: var(--card-glass);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 26px 22px;
            transition: all 0.35s ease;
            position: relative;
        }
        
        .service-card:hover {
            background: var(--card-hover);
            border-color: var(--border-glow);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        
        .service-card .service-icon {
            width: 50px;
            height: 50px;
            border-radius: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            margin-bottom: 14px;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            box-shadow: var(--glow-cyan);
        }
        
        .service-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 8px;
        }
        
        .service-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 0;
        }
        
        /* ===== RESULT COMPARISON ===== */
        .comparison-section {
            padding: 60px 0;
            background: var(--bg-primary);
        }
        
        .comparison-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: stretch;
        }
        
        .comparison-panel {
            background: var(--card-glass);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all 0.3s ease;
        }
        
        .comparison-panel:hover {
            border-color: rgba(255, 255, 255, 0.18);
        }
        
        .comparison-panel.highlighted {
            border-color: var(--border-glow);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.1);
        }
        
        .comparison-panel .panel-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 0.72rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.8px;
            margin-bottom: 14px;
        }
        
        .comparison-panel.highlighted .panel-badge {
            background: rgba(0, 240, 255, 0.12);
            color: var(--accent-cyan);
            border: 1px solid var(--border-glow);
        }
        
        .comparison-panel:not(.highlighted) .panel-badge {
            background: rgba(148, 163, 184, 0.12);
            color: var(--text-soft);
            border: 1px solid var(--border-subtle);
        }
        
        .comparison-panel h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 14px;
        }
        
        .comparison-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        
        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 9px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.55;
        }
        
        .comparison-list li:last-child {
            border-bottom: none;
        }
        
        .comparison-list li i {
            margin-top: 3px;
            flex-shrink: 0;
            font-size: 0.9rem;
        }
        
        .comparison-list li i.fa-check {
            color: #00E878;
        }
        
        .comparison-list li i.fa-xmark {
            color: #FF4444;
        }
        
        /* ===== FAQ ===== */
        .faq-section {
            padding: 60px 0;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
        }
        
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .faq-item {
            background: var(--card-glass);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        
        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.25);
        }
        
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            padding: 18px 22px;
            background: none;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-light);
            text-align: left;
            transition: all 0.3s ease;
        }
        
        .faq-question:hover,
        .faq-question:focus {
            color: var(--accent-cyan);
        }
        
        .faq-question .faq-icon {
            flex-shrink: 0;
            color: var(--text-soft);
            transition: transform 0.35s ease;
            font-size: 0.85rem;
        }
        
        .faq-item.active .faq-icon {
            transform: rotate(180deg);
            color: var(--accent-cyan);
        }
        
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.35s ease;
            padding: 0 22px;
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        
        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0 22px 20px;
        }
        
        /* ===== CTA SECTION ===== */
        .cta-section {
            padding: 70px 0 80px;
            background: var(--bg-primary);
            position: relative;
            overflow: hidden;
        }
        
        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 600px;
            height: 300px;
            background: radial-gradient(ellipse, rgba(0, 82, 255, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }
        
        .cta-panel {
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.15), rgba(0, 240, 255, 0.08));
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-xl);
            padding: 44px 40px;
            text-align: center;
            box-shadow: var(--shadow-lg);
            position: relative;
            z-index: 1;
        }
        
        .cta-panel h2 {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 14px;
        }
        
        .cta-panel p {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 580px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        
        /* ===== FOOTER ===== */
        .site-footer {
            background: #070B14;
            border-top: 1px solid var(--border-subtle);
            padding: 50px 0 0;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 30px;
            padding-bottom: 36px;
        }
        
        .footer-brand .nav-logo {
            margin-bottom: 14px;
        }
        
        .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-soft);
            line-height: 1.7;
            max-width: 340px;
        }
        
        .footer-col h4 {
            font-size: 0.88rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }
        
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        
        .footer-col ul li {
            margin-bottom: 8px;
        }
        
        .footer-col ul a {
            font-size: 0.82rem;
            color: var(--text-soft);
            transition: all 0.25s ease;
            text-decoration: none;
        }
        
        .footer-col ul a:hover,
        .footer-col ul a:focus {
            color: var(--accent-cyan);
        }
        
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 18px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            flex-wrap: wrap;
        }
        
        .footer-bottom p {
            font-size: 0.78rem;
            color: var(--text-soft);
            margin: 0;
        }
        
        .footer-bottom .footer-trust {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.75rem;
            color: var(--text-soft);
        }
        
        .footer-bottom .footer-trust i {
            color: #00E878;
            margin-right: 4px;
            font-size: 0.7rem;
        }
        
        /* ===== FAB ===== */
        .fab-left {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0;
        }
        
        .fab-cyber {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(10, 14, 26, 0.7);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.2rem;
            cursor: pointer;
            transition: all 0.35s ease;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.35);
            opacity: 0.65;
            animation: fabFloat 2.8s ease-in-out infinite;
        }
        
        .fab-cyber::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 50%;
            background: linear-gradient(135deg, #00F0FF, #0052FF, #CCFF00);
            z-index: -1;
            animation: fabBorderSpin 4s linear infinite;
        }
        
        .fab-cyber::after {
            content: '';
            position: absolute;
            top: 4px;
            right: 4px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #FF007F;
            box-shadow: 0 0 10px #FF007F;
            animation: pulseDot 2s ease-in-out infinite;
        }
        
        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-7px); }
        }
        
        @keyframes fabBorderSpin {
            0% { filter: hue-rotate(0deg); }
            100% { filter: hue-rotate(360deg); }
        }
        
        .fab-cyber:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.7);
            color: #fff;
        }
        
        .fab-cyber:active {
            transform: scale(0.95);
        }
        
        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-copy {
                text-align: center;
            }
            .hero-copy p {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-copy .hero-actions {
                justify-content: center;
            }
            .hero-data-panel {
                max-width: 500px;
                margin: 0 auto;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .comparison-wrap {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 768px) {
            .nav-links-desktop {
                display: none;
            }
            .nav-hamburger {
                display: block;
            }
            .btn-login,
            .btn-signup {
                display: none;
            }
            .mobile-auth {
                display: flex;
            }
            .mobile-auth .btn-login,
            .mobile-auth .btn-signup {
                display: block;
            }
            .hero-section {
                padding: 100px 0 40px;
            }
            .hero-copy h1 {
                font-size: 1.7rem;
            }
            .hero-copy p {
                font-size: 0.92rem;
            }
            .hero-data-grid {
                grid-template-columns: 1fr;
            }
            .hero-data-panel {
                padding: 20px;
            }
            .section-heading h2 {
                font-size: 1.4rem;
            }
            .services-grid {
                grid-template-columns: 1fr;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .metric-card {
                padding: 16px 12px;
            }
            .metric-value {
                font-size: 1.3rem;
            }
            .cta-panel {
                padding: 30px 20px;
            }
            .cta-panel h2 {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .fab-left {
                left: 0.75rem;
                bottom: 5rem;
            }
            .fab-cyber {
                width: 46px;
                height: 46px;
                font-size: 1rem;
            }
        }
        
        @media (max-width: 520px) {
            .hero-section {
                padding: 92px 0 32px;
            }
            .hero-copy h1 {
                font-size: 1.4rem;
            }
            .hero-copy p {
                font-size: 0.85rem;
            }
            .btn-primary-glow,
            .btn-secondary-glow {
                font-size: 0.82rem;
                padding: 11px 18px;
            }
            .hero-data-card .data-number {
                font-size: 1.25rem;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .metric-card {
                padding: 12px 8px;
                border-radius: 10px;
            }
            .metric-value {
                font-size: 1.1rem;
            }
            .metric-label {
                font-size: 0.68rem;
            }
            .metric-icon {
                width: 34px;
                height: 34px;
                font-size: 0.85rem;
                margin-bottom: 8px;
            }
            .service-card {
                padding: 20px 16px;
            }
            .service-card h3 {
                font-size: 0.95rem;
            }
            .comparison-panel {
                padding: 20px 16px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.85rem;
            }
            .faq-answer {
                padding: 0 16px;
                font-size: 0.8rem;
            }
            .cta-panel h2 {
                font-size: 1.2rem;
            }
            .cta-panel p {
                font-size: 0.85rem;
            }
            .nav-logo {
                font-size: 0.9rem;
            }
            .nav-logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.8rem;
            }
        }

/* roulang page: category3 */
:root {
            --bg-deep: #08090F;
            --bg-navy: #0D111E;
            --bg-panel: #101626;
            --bg-glass: rgba(18, 28, 50, 0.72);
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --accent-green: #14F195;
            --text-white: #FFFFFF;
            --text-silver: #CBD5E1;
            --text-muted: #8894A8;
            --border-glow: rgba(0, 240, 255, 0.35);
            --border-soft: rgba(139, 156, 184, 0.18);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-card: 0 8px 28px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 20px rgba(0, 240, 255, 0.18);
            --transition: 220ms ease;
            --font-sans: 'Inter', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-deep);
            color: var(--text-silver);
            line-height: 1.62;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--accent-cyan);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--accent-blue);
        }

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

        ul,
        ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        /* ===== NAVIGATION ===== */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 90;
            background: rgba(8, 9, 15, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-soft);
            padding: 0.65rem 0;
            transition: box-shadow var(--transition);
        }

        .site-nav.scrolled {
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.55);
        }

        .site-nav .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
        }

        .nav-logo {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .nav-logo:hover {
            color: var(--accent-cyan);
        }

        .nav-logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            flex-shrink: 0;
            box-shadow: 0 0 14px rgba(0, 240, 255, 0.25);
        }

        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 0.35rem;
        }

        .nav-links-desktop li a {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.5rem 0.85rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-silver);
            transition: background var(--transition), color var(--transition), box-shadow var(--transition);
        }

        .nav-links-desktop li a i {
            font-size: 0.75rem;
            opacity: 0.75;
        }

        .nav-links-desktop li a:hover {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.07);
        }

        .nav-links-desktop li a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.12);
            box-shadow: inset 0 0 0 1px rgba(0, 240, 255, 0.3);
        }

        .nav-auth {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-login,
        .btn-signup {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.48rem 1rem;
            border-radius: 50px;
            font-size: 0.82rem;
            font-weight: 600;
            white-space: nowrap;
            transition: all var(--transition);
        }

        .btn-login {
            background: transparent;
            color: var(--text-silver);
            border: 1px solid var(--border-soft);
        }

        .btn-login:hover {
            color: var(--text-white);
            border-color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.06);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #fff;
            box-shadow: 0 4px 16px rgba(0, 82, 255, 0.35);
        }

        .btn-signup:hover {
            color: #fff;
            box-shadow: 0 6px 24px rgba(0, 240, 255, 0.45);
            transform: translateY(-1px);
        }

        .nav-hamburger {
            display: none;
            background: transparent;
            color: var(--text-white);
            font-size: 1.2rem;
            padding: 0.4rem;
            border-radius: 8px;
            border: 1px solid var(--border-soft);
            transition: background var(--transition);
        }

        .nav-hamburger:hover {
            background: rgba(255, 255, 255, 0.06);
        }

        .mobile-menu-overlay {
            display: none;
            position: fixed;
            top: 56px;
            left: 0;
            right: 0;
            z-index: 85;
            background: rgba(8, 9, 15, 0.97);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-soft);
            padding: 1rem 1.25rem 1.5rem;
            transform: translateY(-8px);
            opacity: 0;
            pointer-events: none;
            transition: all 280ms ease;
        }

        .mobile-menu-overlay.open {
            display: block;
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-menu-overlay ul {
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
        }

        .mobile-menu-overlay ul li a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 1rem;
            border-radius: 10px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-silver);
            transition: background var(--transition), color var(--transition);
        }

        .mobile-menu-overlay ul li a i {
            width: 18px;
            text-align: center;
        }

        .mobile-menu-overlay ul li a:hover,
        .mobile-menu-overlay ul li a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
        }

        .mobile-auth {
            display: flex;
            gap: 0.5rem;
            margin-top: 1rem;
            padding-top: 1rem;
            border-top: 1px solid var(--border-soft);
        }

        .mobile-auth .btn-login,
        .mobile-auth .btn-signup {
            flex: 1;
            justify-content: center;
        }

        /* ===== HERO ===== */
        .hero-section {
            padding: 7.5rem 0 3rem;
            background-image:
                radial-gradient(ellipse at 20% 30%, rgba(0, 82, 255, 0.22) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 65%, rgba(0, 240, 255, 0.15) 0%, transparent 50%),
                url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            border-bottom: 1px solid var(--border-soft);
        }

        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(8, 9, 15, 0.72) 0%, rgba(8, 9, 15, 0.9) 70%, var(--bg-deep) 100%);
            pointer-events: none;
            z-index: 1;
        }

        .hero-section .container {
            position: relative;
            z-index: 2;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 2.5rem;
            align-items: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.3);
            color: var(--accent-cyan);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.35rem 0.75rem;
            border-radius: 50px;
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }

        .hero-badge i {
            font-size: 0.7rem;
        }

        .hero-title {
            font-size: 2.3rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.25;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }

        .hero-title .gradient-text {
            background: linear-gradient(120deg, var(--accent-cyan), var(--accent-blue), var(--accent-green));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .hero-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 520px;
            margin-bottom: 1.5rem;
            line-height: 1.62;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            margin-bottom: 2rem;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 1.5rem;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #fff;
            box-shadow: 0 6px 22px rgba(0, 82, 255, 0.4);
            transition: all var(--transition);
            border: none;
        }

        .btn-primary:hover {
            color: #fff;
            box-shadow: 0 8px 30px rgba(0, 240, 255, 0.5);
            transform: translateY(-2px);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 1.5rem;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-white);
            border: 1px solid var(--border-soft);
            backdrop-filter: blur(8px);
            transition: all var(--transition);
        }

        .btn-secondary:hover {
            color: var(--accent-cyan);
            border-color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
        }

        .hero-trust-list {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .hero-trust-list span {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }

        .hero-trust-list i {
            color: var(--accent-green);
            font-size: 0.7rem;
        }

        /* Hero right - comparison cards */
        .hero-compare-wrap {
            position: relative;
        }

        .hero-compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0.75rem;
        }

        .compare-card {
            background: var(--bg-glass);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 1rem 1.1rem;
            transition: all var(--transition);
            cursor: default;
        }

        .compare-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow);
        }

        .compare-card.recommended {
            grid-column: 1 / -1;
            border: 2px solid var(--accent-cyan);
            background: rgba(0, 240, 255, 0.06);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.15);
            position: relative;
        }

        .compare-card.recommended::before {
            content: 'KHUYẾN NGHỊ';
            position: absolute;
            top: -11px;
            right: 18px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #fff;
            font-size: 0.6rem;
            font-weight: 800;
            letter-spacing: 0.06em;
            padding: 0.2rem 0.6rem;
            border-radius: 50px;
            box-shadow: 0 2px 10px rgba(0, 240, 255, 0.4);
        }

        .compare-card-title {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.3rem;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .compare-card-title i {
            color: var(--accent-cyan);
            font-size: 0.8rem;
        }

        .compare-card-desc {
            font-size: 0.73rem;
            color: var(--text-muted);
            line-height: 1.45;
        }

        .compare-card-stats {
            display: flex;
            gap: 0.75rem;
            margin-top: 0.6rem;
            font-size: 0.68rem;
            color: var(--accent-green);
            font-weight: 600;
        }

        .compare-card-stats span {
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
        }

        /* ===== SECTION SHARED ===== */
        .section {
            padding: 3.5rem 0;
        }

        .section-alt {
            background: var(--bg-navy);
            border-top: 1px solid var(--border-soft);
            border-bottom: 1px solid var(--border-soft);
        }

        .section-header {
            max-width: 680px;
            margin-bottom: 2rem;
        }

        .section-header h2 {
            font-size: 1.55rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.3;
            margin-bottom: 0.5rem;
            letter-spacing: -0.01em;
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.58;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            color: var(--accent-cyan);
            text-transform: uppercase;
            margin-bottom: 0.5rem;
        }

        /* ===== METRICS DASHBOARD ===== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1rem;
        }

        .metric-card {
            background: var(--bg-glass);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 1.25rem 1.1rem;
            text-align: center;
            transition: all var(--transition);
        }

        .metric-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        .metric-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(0, 240, 255, 0.08);
            color: var(--accent-cyan);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            margin: 0 auto 0.7rem;
        }

        .metric-value {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.15;
            letter-spacing: -0.02em;
        }

        .metric-label {
            font-size: 0.74rem;
            color: var(--text-muted);
            margin-top: 0.25rem;
        }

        /* ===== STEPS MATRIX ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 1rem;
        }

        .step-card {
            background: var(--bg-glass);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 1.25rem 1rem;
            position: relative;
            transition: all var(--transition);
        }

        .step-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-card);
            transform: translateY(-3px);
        }

        .step-number {
            position: absolute;
            top: -12px;
            left: 16px;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 14px rgba(0, 240, 255, 0.35);
        }

        .step-card h3 {
            font-size: 0.92rem;
            font-weight: 700;
            color: var(--text-white);
            margin: 0.6rem 0 0.4rem;
        }

        .step-card p {
            font-size: 0.78rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 0;
        }

        .step-card .step-icon {
            font-size: 1.3rem;
            color: var(--accent-cyan);
            margin-bottom: 0.4rem;
        }

        /* ===== COMPARISON TABLE ===== */
        .compare-table-wrap {
            background: var(--bg-glass);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.85rem;
        }

        .compare-table th,
        .compare-table td {
            padding: 0.9rem 1rem;
            text-align: left;
            border-bottom: 1px solid var(--border-soft);
        }

        .compare-table th {
            background: rgba(0, 82, 255, 0.08);
            color: var(--text-white);
            font-weight: 700;
            font-size: 0.8rem;
            letter-spacing: 0.02em;
        }

        .compare-table td {
            color: var(--text-silver);
        }

        .compare-table tr:last-child td {
            border-bottom: none;
        }

        .compare-table .highlight-col {
            background: rgba(0, 240, 255, 0.06);
        }

        .compare-table .highlight-col th:first-child,
        .compare-table .highlight-col td:first-child {
            border-left: 3px solid var(--accent-cyan);
        }

        .check-icon {
            color: var(--accent-green);
            font-size: 0.8rem;
        }

        .x-icon {
            color: #ef4444;
            font-size: 0.8rem;
        }

        .partial-icon {
            color: #f59e0b;
            font-size: 0.8rem;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .faq-item {
            background: var(--bg-glass);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1rem 1.25rem;
            background: transparent;
            color: var(--text-white);
            font-size: 0.88rem;
            font-weight: 600;
            text-align: left;
            width: 100%;
            transition: color var(--transition);
            cursor: pointer;
        }

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

        .faq-question i {
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: transform var(--transition), color var(--transition);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--accent-cyan);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 320ms ease, padding 320ms ease;
            padding: 0 1.25rem;
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.58;
        }

        .faq-item.open .faq-answer {
            max-height: 240px;
            padding: 0 1.25rem 1.1rem;
        }

        /* ===== CTA SECTION ===== */
        .cta-section {
            padding: 4rem 0;
            background:
                radial-gradient(ellipse at center, rgba(0, 82, 255, 0.18) 0%, transparent 65%),
                radial-gradient(ellipse at 30% 65%, rgba(0, 240, 255, 0.12) 0%, transparent 50%),
                var(--bg-deep);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.14;
            pointer-events: none;
        }

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

        .cta-panel {
            background: var(--bg-glass);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: 2.25rem 2rem;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
            box-shadow: 0 0 40px rgba(0, 240, 255, 0.12);
        }

        .cta-panel h2 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 0.6rem;
        }

        .cta-panel p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 1.5rem;
            line-height: 1.55;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.75rem;
        }

        .cta-note {
            margin-top: 1rem;
            font-size: 0.72rem;
            color: var(--text-muted);
        }

        .cta-note i {
            color: var(--accent-green);
            margin-right: 0.25rem;
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-soft);
            padding: 3rem 0 1.5rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-brand p {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.55;
            margin-top: 0.75rem;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.75rem;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 0.45rem;
        }

        .footer-col ul li a {
            font-size: 0.78rem;
            color: var(--text-muted);
            transition: color var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border-soft);
            padding-top: 1.25rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.72rem;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
        }

        .footer-bottom a:hover {
            color: var(--accent-cyan);
        }

        .footer-legal-links {
            display: flex;
            gap: 1rem;
        }

        /* ===== FAB ===== */
        .fab-support {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 70;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.65rem 0.9rem;
            border-radius: 50px;
            background: rgba(8, 9, 15, 0.6);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(8, 9, 15, 0.72), rgba(8, 9, 15, 0.72)), linear-gradient(120deg, var(--accent-green), var(--accent-blue), var(--accent-cyan));
            background-origin: border-box;
            background-clip: padding-box, border-box;
            color: var(--accent-cyan);
            font-size: 0.75rem;
            font-weight: 600;
            min-height: 48px;
            min-width: 48px;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.4), 0 4px 18px rgba(0, 0, 0, 0.5);
            transition: all 260ms ease;
            animation: fabBreathe 3.5s ease-in-out infinite;
        }

        .fab-support:hover {
            opacity: 1;
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.65), 0 4px 22px rgba(0, 0, 0, 0.55);
            transform: scale(1.05);
            color: var(--accent-cyan);
        }

        .fab-support:active {
            transform: scale(0.95);
            border-color: var(--accent-blue);
        }

        .fab-support .fab-badge {
            position: absolute;
            top: -5px;
            right: -5px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #ef4444;
            box-shadow: 0 0 8px #ef4444;
            animation: blinkDot 1.4s ease-in-out infinite;
        }

        .fab-support .fab-text {
            display: inline;
        }

        @keyframes fabBreathe {
            0%, 100% { opacity: 0.62; }
            50% { opacity: 1; }
        }

        @keyframes blinkDot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.35; }
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .hero-title {
                font-size: 2rem;
            }

            .steps-grid {
                grid-template-columns: repeat(3, 1fr);
            }

            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.75rem;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links-desktop {
                display: none;
            }

            .nav-hamburger {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }

            .hide-on-mobile-auth {
                display: none;
            }

            .mobile-menu-overlay {
                display: block;
            }

            .hero-section {
                padding: 6rem 0 2.5rem;
            }

            .hero-title {
                font-size: 1.65rem;
            }

            .hero-compare-grid {
                grid-template-columns: 1fr;
            }

            .compare-card.recommended {
                grid-column: 1;
            }

            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.75rem;
            }

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

            .metric-value {
                font-size: 1.25rem;
            }

            .compare-table-wrap {
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
            }

            .compare-table {
                min-width: 680px;
            }

            .section {
                padding: 2.5rem 0;
            }

            .section-header h2 {
                font-size: 1.35rem;
            }

            .cta-panel {
                padding: 1.75rem 1.25rem;
            }

            .cta-panel h2 {
                font-size: 1.25rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }

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

            .fab-support {
                bottom: 5rem;
                left: 0.75rem;
                padding: 0.55rem 0.75rem;
            }

            .fab-support .fab-text {
                display: none;
            }

            .fab-support {
                min-width: 48px;
                min-height: 48px;
                width: 48px;
                height: 48px;
                border-radius: 50%;
                padding: 0;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 0.9rem;
                padding-right: 0.9rem;
            }

            .hero-title {
                font-size: 1.4rem;
            }

            .hero-subtitle {
                font-size: 0.88rem;
            }

            .btn-primary,
            .btn-secondary {
                padding: 0.65rem 1.1rem;
                font-size: 0.8rem;
                width: 100%;
                justify-content: center;
            }

            .hero-cta-group {
                gap: 0.5rem;
            }

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

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

            .nav-logo {
                font-size: 0.82rem;
                gap: 0.35rem;
            }

            .nav-logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.7rem;
                border-radius: 8px;
            }

            .btn-login,
            .btn-signup {
                padding: 0.4rem 0.7rem;
                font-size: 0.72rem;
            }

            .btn-login i,
            .btn-signup i {
                display: none;
            }

            .section-header h2 {
                font-size: 1.2rem;
            }

            .faq-question {
                font-size: 0.82rem;
                padding: 0.85rem 1rem;
            }

            .faq-answer {
                font-size: 0.76rem;
                padding: 0 1rem;
            }

            .faq-item.open .faq-answer {
                padding: 0 1rem 0.9rem;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0B1A30;
            --bg-secondary: #0F0C20;
            --bg-deep: #060B18;
            --bg-card-glass: rgba(15, 23, 42, 0.65);
            --bg-card-solid: #0F172A;
            --accent-cyan: #00F0FF;
            --accent-lime: #CCFF00;
            --accent-blue: #0052FF;
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --text-muted: #64748B;
            --border-glass: rgba(255, 255, 255, 0.1);
            --border-glow: rgba(0, 240, 255, 0.3);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.25);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-glow-cyan: 0 0 20px rgba(0, 240, 255, 0.4);
            --shadow-glow-lime: 0 0 18px rgba(204, 255, 0, 0.35);
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.75rem;
            --spacing-lg: 3rem;
            --spacing-xl: 4.5rem;
            --font-family: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --transition-fast: 0.2s ease;
            --transition-med: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.65;
            color: var(--text-primary);
            background: var(--bg-deep);
            background-image: radial-gradient(ellipse at 15% 10%, rgba(0, 240, 255, 0.06) 0%, transparent 55%),
                              radial-gradient(ellipse at 85% 30%, rgba(0, 82, 255, 0.08) 0%, transparent 50%),
                              radial-gradient(ellipse at 50% 90%, rgba(15, 12, 32, 0.9) 0%, transparent 70%);
            overflow-x: hidden;
            min-height: 100vh;
        }

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

        a {
            color: var(--accent-cyan);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent-lime);
        }

        button {
            font-family: var(--font-family);
            cursor: pointer;
            border: none;
            outline: none;
        }

        .container,
        .grid-container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 640px) {
            .container,
            .grid-container {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        /* ========== NAVIGATION ========== */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(6, 11, 24, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-glass);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
            transition: all var(--transition-med);
        }
        .site-nav .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 1rem;
        }
        .nav-logo {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.05rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }
        .nav-logo:hover {
            color: var(--accent-cyan);
        }
        .nav-logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.18), rgba(0, 82, 255, 0.22));
            border: 1px solid rgba(0, 240, 255, 0.35);
            color: var(--accent-cyan);
            font-size: 1rem;
            box-shadow: 0 0 14px rgba(0, 240, 255, 0.25);
            flex-shrink: 0;
        }
        .nav-links-desktop {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 0.4rem;
            margin: 0;
            padding: 0;
        }
        .nav-links-desktop li {
            margin: 0;
        }
        .nav-links-desktop a {
            display: inline-flex;
            align-items: center;
            gap: 0.45rem;
            padding: 0.55rem 0.9rem;
            border-radius: 999px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links-desktop a i {
            font-size: 0.82rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .nav-links-desktop a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-links-desktop a:hover i {
            color: var(--accent-cyan);
        }
        .nav-links-desktop a.active {
            color: var(--text-primary);
            background: rgba(0, 240, 255, 0.12);
            border: 1px solid rgba(0, 240, 255, 0.25);
            font-weight: 600;
        }
        .nav-links-desktop a.active i {
            color: var(--accent-cyan);
        }
        .nav-auth {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
        }
        .btn-login,
        .btn-signup {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.4rem;
            padding: 0.5rem 1.1rem;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 600;
            transition: all var(--transition-med);
            white-space: nowrap;
        }
        .btn-login {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-glass);
        }
        .btn-login:hover {
            border-color: rgba(0, 240, 255, 0.4);
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
            transform: translateY(-1px);
        }
        .btn-signup {
            background: linear-gradient(135deg, #00E5FF, #0070FF);
            color: #000;
            font-weight: 700;
            border: none;
            box-shadow: 0 0 16px rgba(0, 240, 255, 0.35);
        }
        .btn-signup:hover {
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.55);
            transform: translateY(-2px);
            color: #000;
        }
        .nav-hamburger {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.35rem;
            padding: 0.4rem 0.6rem;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-glass);
            transition: all var(--transition-fast);
        }
        .nav-hamburger:hover {
            border-color: rgba(0, 240, 255, 0.4);
            color: var(--accent-cyan);
        }
        .mobile-menu-overlay {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(6, 11, 24, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 99;
            padding: 1.5rem 1.25rem;
            overflow-y: auto;
            flex-direction: column;
        }
        .mobile-menu-overlay.open {
            display: flex;
        }
        .mobile-menu-overlay ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.35rem;
        }
        .mobile-menu-overlay ul a {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            padding: 0.9rem 1rem;
            border-radius: var(--radius-md);
            color: var(--text-secondary);
            font-size: 1rem;
            font-weight: 500;
            transition: all var(--transition-fast);
        }
        .mobile-menu-overlay ul a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }
        .mobile-menu-overlay ul a.active {
            color: var(--text-primary);
            background: rgba(0, 240, 255, 0.12);
            border: 1px solid rgba(0, 240, 255, 0.25);
            font-weight: 600;
        }
        .mobile-menu-overlay ul a i {
            font-size: 0.9rem;
            width: 20px;
            text-align: center;
            color: var(--text-muted);
        }
        .mobile-menu-overlay ul a.active i {
            color: var(--accent-cyan);
        }
        .mobile-auth {
            display: flex;
            gap: 0.6rem;
            margin-top: 1rem;
            padding-top: 1rem;
            border-top: 1px solid var(--border-glass);
        }
        .mobile-auth button {
            flex: 1;
            padding: 0.7rem 1rem;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 600;
            transition: all var(--transition-med);
        }

        @media (max-width: 1024px) {
            .nav-links-desktop {
                display: none;
            }
            .nav-hamburger {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .site-nav .container {
                height: 60px;
            }
            .nav-logo {
                font-size: 0.92rem;
            }
            .nav-logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.8rem;
            }
            .btn-login,
            .btn-signup {
                padding: 0.42rem 0.8rem;
                font-size: 0.78rem;
            }
            .mobile-menu-overlay {
                top: 60px;
            }
        }

        /* ========== HERO BENTO ========== */
        .hero-section {
            padding-top: 6.5rem;
            padding-bottom: 3rem;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 0;
            pointer-events: none;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, rgba(6, 11, 24, 0.55) 0%, rgba(6, 11, 24, 0.85) 70%, var(--bg-deep) 100%);
            z-index: 1;
            pointer-events: none;
        }
        .hero-section .grid-container {
            position: relative;
            z-index: 2;
        }
        .bento-hero {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.25rem;
        }
        @media (min-width: 768px) {
            .bento-hero {
                grid-template-columns: 1.5fr 1fr;
                grid-template-areas: 
                    "main side1"
                    "main side2"
                    "cta cta";
            }
        }
        @media (min-width: 1024px) {
            .bento-hero {
                grid-template-columns: 1.6fr 1fr;
                gap: 1.5rem;
            }
        }
        .bento-main {
            background: var(--bg-card-glass);
            backdrop-filter: blur(22px);
            -webkit-backdrop-filter: blur(22px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-xl);
            padding: 2rem 1.5rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
            grid-area: main;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .bento-main::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--accent-cyan), var(--accent-blue), transparent);
            border-radius: 0 0 4px 4px;
        }
        @media (min-width: 768px) {
            .bento-main {
                padding: 2.75rem 2.5rem;
            }
        }
        .bento-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            align-self: flex-start;
            padding: 0.35rem 0.9rem;
            border-radius: 999px;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.3);
            color: var(--accent-cyan);
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            text-transform: uppercase;
            margin-bottom: 1.1rem;
        }
        .bento-main h1 {
            font-size: 1.9rem;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }
        .bento-main h1 .highlight {
            color: var(--accent-cyan);
            text-shadow: 0 0 18px rgba(0, 240, 255, 0.45);
        }
        @media (min-width: 768px) {
            .bento-main h1 {
                font-size: 2.4rem;
            }
        }
        @media (min-width: 1024px) {
            .bento-main h1 {
                font-size: 2.7rem;
            }
        }
        .bento-main p {
            color: var(--text-secondary);
            font-size: 0.98rem;
            line-height: 1.7;
            margin-bottom: 1.5rem;
            max-width: 560px;
        }
        .bento-main .btn-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin-top: 0.3rem;
        }
        .btn-primary-glow {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.8rem 1.6rem;
            border-radius: 999px;
            background: linear-gradient(135deg, #00E5FF, #0070FF);
            color: #000;
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            box-shadow: 0 0 22px rgba(0, 240, 255, 0.4);
            transition: all var(--transition-med);
        }
        .btn-primary-glow:hover {
            box-shadow: 0 0 36px rgba(0, 240, 255, 0.6);
            transform: translateY(-2px);
            color: #000;
        }
        .btn-primary-glow:active {
            transform: translateY(0) scale(0.98);
        }
        .btn-outline-glow {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.8rem 1.5rem;
            border-radius: 999px;
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 0.92rem;
            border: 1px solid rgba(0, 240, 255, 0.35);
            transition: all var(--transition-med);
        }
        .btn-outline-glow:hover {
            border-color: rgba(0, 240, 255, 0.7);
            background: rgba(0, 240, 255, 0.08);
            box-shadow: 0 0 18px rgba(0, 240, 255, 0.2);
            color: var(--accent-cyan);
            transform: translateY(-1px);
        }
        .bento-side {
            background: var(--bg-card-glass);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 1.4rem 1.5rem;
            display: flex;
            align-items: center;
            gap: 1rem;
            transition: all var(--transition-med);
            box-shadow: var(--shadow-sm);
            position: relative;
            overflow: hidden;
        }
        .bento-side:hover {
            border-color: rgba(0, 240, 255, 0.3);
            box-shadow: var(--shadow-glow-cyan);
            transform: translateY(-2px);
        }
        .bento-side .side-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            background: rgba(0, 240, 255, 0.12);
            border: 1px solid rgba(0, 240, 255, 0.25);
            color: var(--accent-cyan);
        }
        .bento-side .side-info h3 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.2rem;
        }
        .bento-side .side-info p {
            font-size: 0.8rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.45;
        }
        .bento-cta-strip {
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.1), rgba(0, 82, 255, 0.15));
            border: 1px solid rgba(0, 240, 255, 0.25);
            border-radius: var(--radius-lg);
            padding: 1.2rem 1.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            grid-area: cta;
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
        }
        .bento-cta-strip p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin: 0;
            flex: 1;
            min-width: 200px;
        }
        .bento-cta-strip p strong {
            color: var(--accent-cyan);
            font-weight: 700;
        }
        .bento-cta-strip .btn-cta-inline {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.6rem 1.2rem;
            border-radius: 999px;
            background: var(--accent-lime);
            color: #000;
            font-weight: 700;
            font-size: 0.85rem;
            border: none;
            box-shadow: 0 0 14px rgba(204, 255, 0, 0.35);
            transition: all var(--transition-med);
            white-space: nowrap;
        }
        .bento-cta-strip .btn-cta-inline:hover {
            box-shadow: 0 0 24px rgba(204, 255, 0, 0.55);
            transform: translateY(-1px);
            color: #000;
        }

        /* ========== SECTION SHARED ========== */
        .section-block {
            padding: 3rem 0;
            position: relative;
        }
        @media (min-width: 768px) {
            .section-block {
                padding: 4.5rem 0;
            }
        }
        .section-header {
            margin-bottom: 2rem;
            max-width: 720px;
        }
        .section-header h2 {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--text-primary);
            margin-bottom: 0.7rem;
            line-height: 1.3;
        }
        @media (min-width: 768px) {
            .section-header h2 {
                font-size: 2rem;
            }
        }
        .section-header h2 .highlight {
            color: var(--accent-cyan);
            text-shadow: 0 0 14px rgba(0, 240, 255, 0.35);
        }
        .section-header p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            margin: 0;
        }
        .section-header.left {
            text-align: left;
        }
        @media (max-width: 767px) {
            .section-header {
                margin-bottom: 1.5rem;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
        }

        /* ========== STATS DASHBOARD ========== */
        .stats-dashboard {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
        }
        @media (min-width: 640px) {
            .stats-dashboard {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.25rem;
            }
        }
        @media (min-width: 1024px) {
            .stats-dashboard {
                grid-template-columns: repeat(4, 1fr);
                gap: 1.5rem;
            }
        }
        .stat-glass-card {
            background: var(--bg-card-glass);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 1.5rem 1.25rem;
            text-align: center;
            transition: all var(--transition-med);
            box-shadow: var(--shadow-sm);
            position: relative;
            overflow: hidden;
        }
        .stat-glass-card::before {
            content: '';
            position: absolute;
            top: -40%;
            left: -40%;
            width: 80%;
            height: 80%;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.08) 0%, transparent 65%);
            pointer-events: none;
            transition: all var(--transition-slow);
        }
        .stat-glass-card:hover::before {
            top: -20%;
            left: -20%;
            width: 90%;
            height: 90%;
        }
        .stat-glass-card:hover {
            border-color: rgba(0, 240, 255, 0.35);
            box-shadow: var(--shadow-glow-cyan);
            transform: translateY(-3px);
        }
        .stat-number {
            font-size: 1.7rem;
            font-weight: 900;
            color: var(--accent-cyan);
            letter-spacing: -0.02em;
            line-height: 1.2;
            text-shadow: 0 0 16px rgba(0, 240, 255, 0.4);
            margin-bottom: 0.3rem;
        }
        @media (min-width: 768px) {
            .stat-number {
                font-size: 2.1rem;
            }
        }
        .stat-label {
            font-size: 0.82rem;
            color: var(--text-secondary);
            font-weight: 500;
            line-height: 1.4;
        }

        /* ========== SERVICE MATRIX ========== */
        .service-matrix {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.25rem;
        }
        @media (min-width: 640px) {
            .service-matrix {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .service-matrix {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        .promo-card {
            background: var(--bg-card-glass);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-med);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
        }
        .promo-card:hover {
            border-color: rgba(0, 240, 255, 0.4);
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.25);
            transform: translateY(-4px);
        }
        .promo-card .promo-img {
            height: 170px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .promo-card .promo-img::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60%;
            background: linear-gradient(to top, rgba(15, 23, 42, 0.9), transparent);
        }
        .promo-card .promo-tag {
            position: absolute;
            top: 0.7rem;
            left: 0.7rem;
            z-index: 2;
            padding: 0.3rem 0.7rem;
            border-radius: 999px;
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(0, 240, 255, 0.4);
            color: var(--accent-cyan);
        }
        .promo-card .promo-tag.hot {
            background: rgba(255, 0, 0, 0.3);
            border-color: rgba(255, 100, 100, 0.5);
            color: #FF6B6B;
        }
        .promo-card .promo-tag.lime {
            background: rgba(204, 255, 0, 0.2);
            border-color: rgba(204, 255, 0, 0.4);
            color: var(--accent-lime);
        }
        .promo-card .promo-body {
            padding: 1.3rem 1.3rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .promo-card .promo-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
            line-height: 1.35;
        }
        .promo-card .promo-body p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 1rem;
            flex: 1;
        }
        .promo-card .promo-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }
        .promo-card .promo-meta span {
            font-size: 0.72rem;
            padding: 0.25rem 0.7rem;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-glass);
            color: var(--text-secondary);
        }
        .promo-card .promo-link {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-cyan);
            transition: all var(--transition-fast);
            align-self: flex-start;
        }
        .promo-card .promo-link:hover {
            color: var(--accent-lime);
            gap: 0.6rem;
        }

        /* ========== COMPARISON ========== */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.25rem;
        }
        @media (min-width: 768px) {
            .comparison-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
        }
        .compare-panel {
            background: var(--bg-card-glass);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 1.6rem 1.5rem;
            transition: all var(--transition-med);
            box-shadow: var(--shadow-sm);
        }
        .compare-panel.vip {
            border-color: rgba(0, 240, 255, 0.4);
            background: linear-gradient(160deg, rgba(0, 240, 255, 0.06), rgba(0, 82, 255, 0.08)), var(--bg-card-glass);
            box-shadow: 0 0 24px rgba(0, 240, 255, 0.2);
        }
        .compare-panel h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .compare-panel h3 i {
            color: var(--accent-cyan);
            font-size: 1.1rem;
        }
        .compare-panel.vip h3 i {
            color: var(--accent-lime);
        }
        .compare-panel ul {
            list-style: none;
            padding: 0;
            margin: 0 0 1rem 0;
        }
        .compare-panel ul li {
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            padding: 0.55rem 0;
            border-bottom: 1px solid var(--border-glass);
            font-size: 0.88rem;
            color: var(--text-secondary);
        }
        .compare-panel ul li:last-child {
            border-bottom: none;
        }
        .compare-panel ul li i {
            margin-top: 0.2rem;
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        .compare-panel ul li .check {
            color: var(--accent-cyan);
        }
        .compare-panel ul li .times {
            color: #FF6B6B;
        }
        .compare-panel ul li .star {
            color: var(--accent-lime);
        }
        .compare-panel .compare-value {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--accent-cyan);
            margin-bottom: 0.3rem;
        }
        .compare-panel.vip .compare-value {
            color: var(--accent-lime);
            text-shadow: 0 0 16px rgba(204, 255, 0, 0.4);
        }

        /* ========== FAQ ========== */
        .faq-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card-glass);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            margin-bottom: 0.7rem;
            overflow: hidden;
            transition: all var(--transition-med);
        }
        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.25);
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1rem 1.3rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-primary);
            list-style: none;
            transition: all var(--transition-fast);
            user-select: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            color: var(--accent-cyan);
        }
        .faq-item summary .faq-toggle {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 240, 255, 0.08);
            color: var(--accent-cyan);
            font-size: 0.8rem;
            transition: all var(--transition-med);
            border: 1px solid rgba(0, 240, 255, 0.2);
        }
        .faq-item[open] summary .faq-toggle {
            transform: rotate(180deg);
            background: rgba(0, 240, 255, 0.18);
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.25);
        }
        .faq-item .faq-content {
            padding: 0 1.3rem 1.2rem;
            color: var(--text-secondary);
            font-size: 0.88rem;
            line-height: 1.7;
        }
        .faq-item .faq-content p {
            margin: 0;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            padding: 3rem 0 4rem;
        }
        .cta-panel {
            background: linear-gradient(140deg, rgba(0, 240, 255, 0.1), rgba(0, 82, 255, 0.16)), var(--bg-card-glass);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid rgba(0, 240, 255, 0.3);
            border-radius: var(--radius-xl);
            padding: 2.5rem 1.5rem;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-glow-cyan);
        }
        .cta-panel::before {
            content: '';
            position: absolute;
            top: -50%;
            left: 50%;
            transform: translateX(-50%);
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.15) 0%, transparent 65%);
            pointer-events: none;
            animation: ctaPulse 4s ease-in-out infinite;
        }
        @keyframes ctaPulse {
            0%, 100% { opacity: 0.5; transform: translateX(-50%) scale(1); }
            50% { opacity: 1; transform: translateX(-50%) scale(1.3); }
        }
        @media (min-width: 768px) {
            .cta-panel {
                padding: 3.5rem 3rem;
            }
        }
        .cta-panel h2 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 0.7rem;
            position: relative;
            z-index: 1;
        }
        @media (min-width: 768px) {
            .cta-panel h2 {
                font-size: 1.9rem;
            }
        }
        .cta-panel p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 1.5rem;
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-form {
            display: flex;
            flex-wrap: wrap;
            gap: 0.7rem;
            justify-content: center;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin: 0 auto;
        }
        .cta-form input {
            flex: 1;
            min-width: 220px;
            padding: 0.8rem 1.2rem;
            border-radius: 999px;
            border: 1px solid var(--border-glass);
            background: rgba(6, 11, 24, 0.6);
            color: var(--text-primary);
            font-family: var(--font-family);
            font-size: 0.9rem;
            outline: none;
            transition: all var(--transition-fast);
        }
        .cta-form input::placeholder {
            color: var(--text-muted);
        }
        .cta-form input:focus {
            border-color: rgba(0, 240, 255, 0.5);
            box-shadow: 0 0 14px rgba(0, 240, 255, 0.2);
        }
        .cta-form .btn-submit {
            padding: 0.8rem 1.6rem;
            border-radius: 999px;
            background: var(--accent-lime);
            color: #000;
            font-weight: 700;
            font-size: 0.9rem;
            border: none;
            box-shadow: 0 0 16px rgba(204, 255, 0, 0.4);
            transition: all var(--transition-med);
            white-space: nowrap;
        }
        .cta-form .btn-submit:hover {
            box-shadow: 0 0 28px rgba(204, 255, 0, 0.6);
            transform: translateY(-2px);
        }
        .cta-note {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 0.7rem;
            position: relative;
            z-index: 1;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: rgba(6, 11, 24, 0.9);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border-glass);
            padding: 3rem 0 1.5rem;
            position: relative;
        }
        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.4), rgba(0, 82, 255, 0.4), transparent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
                gap: 2.5rem;
            }
        }
        .footer-brand p {
            color: var(--text-secondary);
            font-size: 0.85rem;
            line-height: 1.7;
            margin-top: 0.8rem;
            max-width: 340px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.8rem;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 0.45rem;
        }
        .footer-col ul li a {
            color: var(--text-secondary);
            font-size: 0.85rem;
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
        }
        .footer-col ul li a:hover {
            color: var(--accent-cyan);
            transform: translateX(2px);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-glass);
            padding-top: 1.3rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 0.7rem;
        }
        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.78rem;
            margin: 0;
        }
        .footer-bottom .trust-badges {
            display: flex;
            gap: 0.6rem;
            flex-wrap: wrap;
        }
        .footer-bottom .trust-badges span {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            font-size: 0.7rem;
            padding: 0.25rem 0.7rem;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-glass);
            color: var(--text-muted);
        }
        .footer-bottom .trust-badges span i {
            color: var(--accent-cyan);
            font-size: 0.7rem;
        }

        /* ========== FAB ========== */
        .fab-cyber {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 90;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(6, 11, 24, 0.75);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(6, 11, 24, 0.75), rgba(6, 11, 24, 0.75)), linear-gradient(135deg, #CCFF00, #00F0FF);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            box-shadow: 0 0 16px rgba(0, 240, 255, 0.45);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #00F0FF;
            font-size: 1.25rem;
            transition: all var(--transition-med);
            animation: fabBreath 2.8s ease-in-out infinite;
            cursor: pointer;
            position: fixed;
        }
        .fab-cyber:hover {
            opacity: 1;
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.7);
            transform: scale(1.12);
            color: #CCFF00;
        }
        .fab-cyber:active {
            transform: scale(0.94);
            box-shadow: 0 0 20px rgba(204, 255, 0, 0.6);
        }
        .fab-cyber .fab-notification {
            position: absolute;
            top: -3px;
            right: -3px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: #FF2D55;
            border: 2px solid #0B1A30;
            animation: fabBlink 1.4s ease-in-out infinite;
            box-shadow: 0 0 8px rgba(255, 45, 85, 0.7);
        }
        @keyframes fabBreath {
            0%, 100% { opacity: 0.65; }
            50% { opacity: 0.9; }
        }
        @keyframes fabBlink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.25; }
        }
        @media (max-width: 520px) {
            .fab-cyber {
                width: 48px;
                height: 48px;
                font-size: 1.1rem;
                left: 0.8rem;
                bottom: 5rem;
            }
        }

        /* ========== RESPONSIVE FIXES ========== */
        @media (max-width: 767px) {
            .bento-main h1 {
                font-size: 1.55rem;
            }
            .bento-main p {
                font-size: 0.9rem;
            }
            .bento-side {
                padding: 1.1rem 1.2rem;
            }
            .bento-side .side-icon {
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
                border-radius: 10px;
            }
            .stats-dashboard {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.8rem;
            }
            .stat-number {
                font-size: 1.4rem;
            }
            .service-matrix {
                grid-template-columns: 1fr;
            }
            .promo-card .promo-img {
                height: 150px;
            }
            .compare-panel {
                padding: 1.3rem 1.2rem;
            }
            .faq-item summary {
                font-size: 0.88rem;
                padding: 0.85rem 1.1rem;
            }
            .cta-panel h2 {
                font-size: 1.35rem;
            }
            .footer-grid {
                gap: 1.5rem;
            }
        }

        @media (max-width: 400px) {
            .bento-main h1 {
                font-size: 1.35rem;
            }
            .bento-tag {
                font-size: 0.7rem;
                padding: 0.3rem 0.7rem;
            }
            .btn-primary-glow,
            .btn-outline-glow {
                padding: 0.65rem 1.2rem;
                font-size: 0.82rem;
            }
            .stats-dashboard {
                grid-template-columns: 1fr 1fr;
            }
        }

        /* ========== ACCESSIBILITY ========== */
        .btn-primary-glow:focus-visible,
        .btn-outline-glow:focus-visible,
        .btn-login:focus-visible,
        .btn-signup:focus-visible,
        .cta-form .btn-submit:focus-visible,
        .cta-form input:focus-visible,
        .fab-cyber:focus-visible {
            outline: 3px solid rgba(0, 240, 255, 0.6);
            outline-offset: 3px;
        }
        a:focus-visible {
            outline: 2px solid rgba(0, 240, 255, 0.5);
            outline-offset: 2px;
        }