/* roulang page: index */
:root {
            --bg: #050A14;
            --bg-2: #071524;
            --surface: rgba(13, 34, 53, 0.88);
            --surface-2: #0B2335;
            --surface-3: #0E2B3F;
            --neon-cyan: #22D3EE;
            --neon-teal: #14F1D9;
            --neon-lime: #A3E635;
            --neon-pink: #F43F5E;
            --text: #F8FAFC;
            --muted: #94A3B8;
            --border: rgba(34, 211, 238, 0.16);
            --border-strong: rgba(34, 211, 238, 0.32);
            --radius: 22px;
            --radius-sm: 14px;
            --shadow-glow: 0 0 22px rgba(34, 211, 238, 0.20);
            --shadow-glow-strong: 0 0 30px rgba(34, 211, 238, 0.40);
            --font: 'Be Vietnam Pro', sans-serif;
            --transition: all .25s ease-in-out;
        }
        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font);
            background: radial-gradient(circle at 80% 0%, rgba(34,211,238,0.08), transparent 40%), var(--bg);
            color: var(--text);
            line-height: 1.6;
            margin: 0;
            overflow-x: hidden;
        }
        a { color: var(--neon-cyan); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--neon-teal); }
        img { max-width: 100%; display: block; }
        .section-pad { padding: 80px 0; }
        .section-label {
            display: inline-block;
            padding: 6px 14px;
            border: 1px solid var(--border-strong);
            border-radius: 999px;
            background: rgba(34,211,238,0.06);
            color: var(--neon-cyan);
            font-weight: 600;
            font-size: .8rem;
            letter-spacing: .5px;
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .display-title {
            font-weight: 800;
            letter-spacing: -.5px;
            line-height: 1.15;
            color: var(--text);
        }
        .lead-muted {
            color: var(--muted);
            font-size: 1.05rem;
            line-height: 1.65;
        }
        .btn-neon {
            background: linear-gradient(135deg, #22D3EE, #14F1D9);
            color: #04151F;
            border: none;
            font-weight: 700;
            border-radius: 999px;
            padding: 12px 24px;
            box-shadow: 0 0 18px rgba(34,211,238,0.35);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .btn-neon:hover {
            color: #04151F;
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(34,211,238,0.55);
        }
        .btn-outline-neon {
            background: transparent;
            border: 1px solid var(--border-strong);
            color: var(--neon-cyan);
            border-radius: 999px;
            padding: 11px 22px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-outline-neon:hover {
            background: rgba(34,211,238,0.08);
            border-color: var(--neon-cyan);
            color: var(--neon-teal);
        }
        .glass {
            background: var(--surface);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--border);
            border-radius: var(--radius);
        }

        /* Navbar */
        .navbar-cyber {
            background: rgba(5,10,20,0.78);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(34,211,238,0.12);
            padding: 14px 0;
            transition: var(--transition);
        }
        .navbar-cyber .navbar-brand {
            font-weight: 800;
            font-size: 1.05rem;
            color: var(--text);
            letter-spacing: -.3px;
            white-space: normal;
            line-height: 1.25;
        }
        .navbar-cyber .navbar-brand span {
            color: var(--neon-cyan);
        }
        .navbar-cyber .nav-link {
            color: var(--muted);
            font-weight: 500;
            margin: 0 4px;
            padding: 8px 12px !important;
            border-radius: 10px;
            transition: var(--transition);
        }
        .navbar-cyber .nav-link:hover,
        .navbar-cyber .nav-link.active {
            color: var(--neon-cyan);
            background: rgba(34,211,238,0.06);
        }
        .navbar-cyber .login-btn {
            border: 1px solid rgba(34,211,238,0.35);
            color: var(--neon-cyan);
            background: transparent;
            font-weight: 600;
            padding: 9px 16px;
            border-radius: 999px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .navbar-cyber .login-btn:hover {
            background: rgba(34,211,238,0.1);
            color: var(--neon-teal);
        }
        .navbar-cyber .signup-btn {
            padding: 9px 18px;
            border-radius: 999px;
            font-weight: 700;
            white-space: nowrap;
            background: linear-gradient(135deg, #22D3EE, #A3E635);
            color: #04151F;
            border: none;
            box-shadow: 0 0 16px rgba(34,211,238,0.35);
            transition: var(--transition);
        }
        .navbar-cyber .signup-btn:hover {
            color: #04151F;
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(163,230,53,0.45);
        }
        .navbar-toggler {
            border: 1px solid var(--border-strong);
            color: var(--neon-cyan);
        }
        .nav-right-actions {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* Hero */
        .hero-cyber {
            position: relative;
            padding: 150px 0 90px;
            background: url('/assets/images/2d9e25232e7c1ec5.jpg') center/cover no-repeat;
            min-height: 620px;
        }
        .hero-cyber::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(5,10,20,0.95) 20%, rgba(8,23,39,0.82) 60%, rgba(5,10,20,0.65) 100%);
            backdrop-filter: blur(2px);
        }
        .hero-cyber .container { position: relative; z-index: 2; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(163,230,53,0.1);
            border: 1px solid rgba(163,230,53,0.35);
            color: var(--neon-lime);
            padding: 6px 12px;
            border-radius: 999px;
            font-size: .82rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: .4px;
        }
        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            letter-spacing: -.7px;
            line-height: 1.12;
            color: #fff;
            margin: 18px 0 14px;
        }
        .hero-title .highlight {
            background: linear-gradient(135deg, #22D3EE, #14F1D9);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-featured-card {
            background: rgba(8,23,39,0.75);
            backdrop-filter: blur(16px);
            border: 1px solid var(--border);
            border-radius: 28px;
            padding: 26px;
            box-shadow: var(--shadow-glow);
            transition: var(--transition);
        }
        .hero-featured-card:hover {
            box-shadow: var(--shadow-glow-strong);
            transform: translateY(-6px);
        }
        .hero-featured-card .hero-card-img {
            border-radius: 18px;
            height: 180px;
            object-fit: cover;
            width: 100%;
            margin-bottom: 16px;
        }
        .hero-metric-row {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 22px;
            margin-top: 18px;
        }
        .hero-metric-item h4 {
            font-weight: 800;
            font-size: 1.5rem;
            color: var(--neon-cyan);
            margin-bottom: 2px;
        }
        .hero-metric-item span {
            color: var(--muted);
            font-size: .88rem;
        }

        /* Feature cards */
        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px;
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            border-color: var(--border-strong);
            box-shadow: var(--shadow-glow);
        }
        .feature-card .icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, rgba(34,211,238,0.18), rgba(20,241,217,0.12));
            color: var(--neon-cyan);
            font-size: 1.5rem;
            margin-bottom: 18px;
        }
        .feature-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .feature-card p {
            color: var(--muted);
            margin-bottom: 0;
        }

        /* Category matrix */
        .category-matrix-card {
            display: block;
            background: var(--surface-2);
            border: 1px solid var(--border);
            border-radius: 24px;
            padding: 28px 24px;
            height: 100%;
            color: var(--text);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .category-matrix-card:hover {
            transform: translateY(-8px);
            border-color: var(--neon-cyan);
            color: var(--text);
            box-shadow: var(--shadow-glow-strong);
        }
        .category-matrix-card .cat-icon {
            font-size: 2rem;
            color: var(--neon-cyan);
            margin-bottom: 16px;
        }
        .category-matrix-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .category-matrix-card p {
            color: var(--muted);
            margin-bottom: 0;
        }

        /* CMS cards */
        .cms-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            height: 100%;
            transition: var(--transition);
        }
        .cms-card:hover {
            transform: translateY(-5px);
            border-color: var(--border-strong);
            box-shadow: var(--shadow-glow);
        }
        .cms-card .card-img {
            height: 170px;
            width: 100%;
            object-fit: cover;
        }
        .cms-card .card-body {
            padding: 20px 22px 22px;
        }
        .cms-card .card-category {
            color: var(--neon-cyan);
            font-weight: 700;
            font-size: .8rem;
            text-transform: uppercase;
            letter-spacing: .4px;
        }
        .cms-card .card-title a {
            color: var(--text);
            font-weight: 700;
            font-size: 1.1rem;
            line-height: 1.4;
            display: inline-block;
            margin: 8px 0 10px;
        }
        .cms-card .card-title a:hover { color: var(--neon-cyan); }
        .cms-card .card-date {
            color: var(--muted);
            font-size: .85rem;
        }

        /* Topic highlight */
        .topic-card {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
            min-height: 200px;
            display: flex;
            align-items: flex-end;
            background: url('/assets/images/3f47109ee1e5af5b.jpg') center/cover no-repeat;
            color: #fff;
        }
        .topic-card::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(5,10,20,0.05) 0%, rgba(5,10,20,0.88) 100%);
        }
        .topic-card .topic-content {
            position: relative;
            padding: 20px;
            z-index: 2;
        }
        .topic-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .topic-card p {
            font-size: .9rem;
            color: #D1FAE5;
            margin-bottom: 0;
        }
        .topic-card:hover {
            transform: translateY(-6px);
            border-color: var(--neon-cyan);
            box-shadow: var(--shadow-glow);
        }

        /* Compact news list */
        .news-list-item {
            display: flex;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid rgba(34,211,238,0.1);
            align-items: flex-start;
            transition: var(--transition);
        }
        .news-list-item:hover {
            background: rgba(34,211,238,0.04);
            border-radius: 12px;
            padding-left: 12px;
        }
        .news-list-item .news-thumb {
            width: 110px;
            height: 74px;
            border-radius: 12px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .news-list-item h5 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .news-list-item h5 a {
            color: var(--text);
        }
        .news-list-item h5 a:hover { color: var(--neon-cyan); }
        .news-list-item .meta {
            color: var(--muted);
            font-size: .82rem;
        }
        .featured-news-box {
            background: var(--surface-3);
            border: 1px solid var(--border);
            border-radius: 24px;
            padding: 28px;
            height: 100%;
            box-shadow: var(--shadow-glow);
            transition: var(--transition);
        }
        .featured-news-box:hover {
            border-color: var(--neon-cyan);
            box-shadow: var(--shadow-glow-strong);
            transform: translateY(-4px);
        }
        .featured-news-box img {
            border-radius: 16px;
            height: 180px;
            width: 100%;
            object-fit: cover;
            margin-bottom: 18px;
        }
        .featured-news-box h4 {
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 8px;
        }
        .featured-news-box h4 a { color: var(--text); }
        .featured-news-box h4 a:hover { color: var(--neon-cyan); }
        .featured-news-box p { color: var(--muted); margin-bottom: 0; }

        /* Metrics */
        .metric-block {
            background: linear-gradient(145deg, rgba(34,211,238,0.09), rgba(5,10,20,0.2));
            border: 1px solid var(--border);
            border-radius: 28px;
            padding: 34px 30px;
            box-shadow: var(--shadow-glow);
        }
        .metric-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }
        .metric-item h4 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--neon-cyan);
            margin-bottom: 4px;
            letter-spacing: -.5px;
        }
        .metric-item span {
            color: var(--muted);
            font-weight: 500;
        }

        /* Trust */
        .trust-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .trust-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 22px;
            display: flex;
            gap: 14px;
            align-items: flex-start;
            transition: var(--transition);
        }
        .trust-item:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-glow);
            transform: translateY(-3px);
        }
        .trust-item i {
            font-size: 1.6rem;
            color: var(--neon-cyan);
            margin-top: 2px;
        }
        .trust-item h5 {
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 6px;
        }
        .trust-item p {
            color: var(--muted);
            font-size: .9rem;
            margin-bottom: 0;
        }

        /* Testimonials */
        .testimonial-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            height: 100%;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .testimonial-card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-glow);
            transform: translateY(-5px);
        }
        .testimonial-card .quote-icon {
            color: rgba(34,211,238,0.5);
            font-size: 1.8rem;
            margin-bottom: 12px;
        }
        .testimonial-card p {
            color: #CBD5E1;
            flex-grow: 1;
        }
        .testimonial-card .author {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 16px;
        }
        .testimonial-card .author-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, #22D3EE, #14F1D9);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            color: #04151F;
        }
        .testimonial-card .author-info strong {
            display: block;
            font-size: 1rem;
        }
        .testimonial-card .author-info span {
            color: var(--muted);
            font-size: .85rem;
        }

        /* CTA */
        .cta-panel {
            background: url('/assets/images/72fbd394a1265a48.jpg') center/cover no-repeat;
            border-radius: 34px;
            padding: 56px 40px;
            border: 1px solid var(--border);
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-glow-strong);
        }
        .cta-panel::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(5,10,20,0.95), rgba(8,23,39,0.8));
        }
        .cta-panel .cta-content {
            position: relative;
            z-index: 2;
        }
        .cta-panel .cta-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 22px;
        }
        .cta-panel input[type="email"] {
            background: rgba(5,10,20,0.75);
            border: 1px solid var(--border-strong);
            color: var(--text);
            border-radius: 999px;
            padding: 13px 22px;
            min-width: 260px;
            outline: none;
            transition: var(--transition);
        }
        .cta-panel input[type="email"]:focus {
            border-color: var(--neon-cyan);
            box-shadow: 0 0 0 3px rgba(34,211,238,0.15);
        }
        .cta-panel .privacy-note {
            color: var(--muted);
            font-size: .85rem;
            margin-top: 12px;
        }

        /* Footer */
        .footer-cyber {
            background: #030812;
            border-top: 1px solid rgba(34,211,238,0.12);
            padding: 60px 0 30px;
            color: var(--muted);
        }
        .footer-cyber .footer-brand {
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            line-height: 1.35;
        }
        .footer-cyber h5 {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 16px;
        }
        .footer-cyber ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-cyber ul li {
            margin-bottom: 10px;
        }
        .footer-cyber ul li a {
            color: var(--muted);
        }
        .footer-cyber ul li a:hover { color: var(--neon-cyan); }
        .footer-cyber .payment-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }
        .footer-cyber .payment-badges span {
            background: rgba(34,211,238,0.08);
            border: 1px solid rgba(34,211,238,0.25);
            color: var(--neon-cyan);
            padding: 6px 12px;
            border-radius: 999px;
            font-size: .82rem;
            font-weight: 600;
        }
        .footer-bottom {
            border-top: 1px solid rgba(34,211,238,0.1);
            margin-top: 40px;
            padding-top: 22px;
            font-size: .88rem;
        }

        /* FAB */
        .fab-cyber {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 18px;
            background: rgba(7,7,13,0.82);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--neon-cyan);
            font-size: 1.4rem;
            box-shadow: 0 0 20px rgba(6,182,212,0.45);
            transition: var(--transition);
            animation: fabFloat 3s ease-in-out infinite;
        }
        .fab-cyber:hover {
            transform: scale(1.1);
            color: var(--neon-teal);
            box-shadow: 0 0 32px rgba(6,182,212,0.75);
            border-color: rgba(34,211,238,0.7);
        }
        .fab-cyber:active {
            transform: scale(0.94);
        }
        .fab-cyber .notification-dot {
            position: absolute;
            top: -4px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: #F43F5E;
            border-radius: 50%;
            border: 2px solid #fff;
            animation: pulseDot 1.4s infinite;
        }
        @keyframes fabFloat {
            0%,100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        @keyframes pulseDot {
            0% { box-shadow: 0 0 0 0 rgba(244,63,94,0.7); }
            70% { box-shadow: 0 0 0 10px rgba(244,63,94,0); }
            100% { box-shadow: 0 0 0 0 rgba(244,63,94,0); }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .metric-row { grid-template-columns: repeat(2, 1fr); }
            .trust-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .hero-cyber { padding: 128px 0 70px; min-height: auto; }
            .hero-title { font-size: 2.1rem; }
            .section-pad { padding: 60px 0; }
            .metric-row { grid-template-columns: 1fr; }
            .trust-grid { grid-template-columns: 1fr; }
            .navbar-cyber .navbar-brand { font-size: 0.9rem; }
            .nav-right-actions { gap: 2px; }
            .navbar-cyber .login-btn,
            .navbar-cyber .signup-btn { padding: 6px 12px; font-size: .85rem; }
            .cta-panel { padding: 36px 22px; }
            .cta-panel input[type="email"] { min-width: 100%; }
            .news-list-item { flex-direction: column; gap: 10px; }
            .news-list-item .news-thumb { width: 100%; height: 120px; }
        }
        @media (max-width: 520px) {
            .hero-title { font-size: 1.7rem; }
            .container { padding-left: 18px; padding-right: 18px; }
            .navbar-cyber .nav-right-actions { flex-wrap: nowrap; }
            .navbar-cyber .signup-btn { margin-left: 0; }
            .hero-featured-card { padding: 18px; }
            .hero-featured-card .hero-card-img { height: 140px; }
            .topic-card { min-height: 160px; }
            .fab-cyber { width: 50px; height: 50px; bottom: 80px; left: 10px; }
        }

/* roulang page: article */
:root {
            --bg: #050A14;
            --bg-2: #071524;
            --surface: rgba(13, 34, 53, 0.88);
            --surface-2: #0B2335;
            --surface-3: #0E2B3F;
            --neon-cyan: #22D3EE;
            --neon-teal: #14F1D9;
            --neon-lime: #A3E635;
            --neon-pink: #F43F5E;
            --text: #F8FAFC;
            --muted: #94A3B8;
            --border: rgba(34, 211, 238, 0.16);
            --border-strong: rgba(34, 211, 238, 0.32);
            --radius: 22px;
            --radius-sm: 14px;
            --shadow-glow: 0 0 22px rgba(34, 211, 238, 0.20);
            --shadow-glow-strong: 0 0 30px rgba(34, 211, 238, 0.40);
            --font: 'Be Vietnam Pro', sans-serif;
            --transition: all .25s ease-in-out;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font);
            background: radial-gradient(circle at 80% 0%, rgba(34,211,238,0.08), transparent 40%), var(--bg);
            color: var(--text);
            line-height: 1.6;
            margin: 0;
            overflow-x: hidden;
        }
        a { color: var(--neon-cyan); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--neon-teal); }
        img { max-width: 100%; display: block; }
        .section-pad { padding: 80px 0; }
        .section-label {
            display: inline-block;
            padding: 6px 14px;
            border: 1px solid var(--border-strong);
            border-radius: 999px;
            background: rgba(34,211,238,0.06);
            color: var(--neon-cyan);
            font-weight: 600;
            font-size: .8rem;
            letter-spacing: .5px;
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .display-title {
            font-weight: 800;
            letter-spacing: -.5px;
            line-height: 1.15;
            color: var(--text);
        }
        .lead-muted { color: var(--muted); font-size: 1.05rem; line-height: 1.65; }
        .btn-neon {
            background: linear-gradient(135deg, #22D3EE, #14F1D9);
            color: #04151F;
            border: none;
            font-weight: 700;
            border-radius: 999px;
            padding: 12px 24px;
            box-shadow: 0 0 18px rgba(34,211,238,0.35);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .btn-neon:hover {
            color: #04151F;
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(34,211,238,0.55);
        }
        .btn-outline-neon {
            background: transparent;
            border: 1px solid var(--border-strong);
            color: var(--neon-cyan);
            border-radius: 999px;
            padding: 11px 22px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-outline-neon:hover {
            background: rgba(34,211,238,0.08);
            border-color: var(--neon-cyan);
            color: var(--neon-teal);
        }
        /* Navbar */
        .navbar-cyber {
            background: rgba(5,10,20,0.78);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(34,211,238,0.12);
            padding: 14px 0;
            transition: var(--transition);
        }
        .navbar-cyber .navbar-brand {
            font-weight: 800;
            font-size: 1.05rem;
            color: var(--text);
            letter-spacing: -.3px;
            white-space: normal;
            line-height: 1.25;
        }
        .navbar-cyber .navbar-brand span { color: var(--neon-cyan); }
        .navbar-cyber .nav-link {
            color: var(--muted);
            font-weight: 500;
            margin: 0 4px;
            padding: 8px 12px !important;
            border-radius: 10px;
            transition: var(--transition);
        }
        .navbar-cyber .nav-link:hover,
        .navbar-cyber .nav-link.active {
            color: var(--neon-cyan);
            background: rgba(34,211,238,0.06);
        }
        .navbar-cyber .login-btn {
            border: 1px solid rgba(34,211,238,0.35);
            color: var(--neon-cyan);
            background: transparent;
            font-weight: 600;
            padding: 9px 16px;
            border-radius: 999px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .navbar-cyber .login-btn:hover {
            background: rgba(34,211,238,0.1);
            color: var(--neon-teal);
        }
        .navbar-cyber .signup-btn {
            padding: 9px 18px;
            border-radius: 999px;
            font-weight: 700;
            white-space: nowrap;
            background: linear-gradient(135deg, #22D3EE, #A3E635);
            color: #04151F;
            border: none;
            box-shadow: 0 0 16px rgba(34,211,238,0.35);
            transition: var(--transition);
        }
        .navbar-cyber .signup-btn:hover {
            color: #04151F;
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(163,230,53,0.45);
        }
        .navbar-toggler { border: 1px solid var(--border-strong); color: var(--neon-cyan); }
        .nav-right-actions { display: flex; align-items: center; gap: 8px; }
        /* Article Hero */
        .article-hero {
            position: relative;
            padding: 160px 0 70px;
            background: url('/assets/images/d43f0c423beedf62.jpg') center/cover no-repeat;
            min-height: 480px;
        }
        .article-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(5,10,20,0.95) 20%, rgba(8,23,39,0.82) 60%, rgba(5,10,20,0.65) 100%);
        }
        .article-hero .container { position: relative; z-index: 2; }
        .breadcrumb-cyber {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: .85rem;
            color: var(--muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb-cyber a { color: var(--neon-cyan); }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            color: var(--muted);
            font-size: .9rem;
            margin-top: 16px;
        }
        .article-meta .badge-custom {
            background: rgba(34,211,238,0.12);
            border: 1px solid var(--border-strong);
            color: var(--neon-cyan);
            padding: 4px 12px;
            border-radius: 999px;
            font-weight: 600;
        }
        .article-meta i { color: var(--neon-cyan); margin-right: 6px; }
        /* Article Body */
        .article-body {
            background: var(--bg-2);
            padding: 60px 0;
        }
        .article-content-wrap {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 40px;
            box-shadow: var(--shadow-glow);
            backdrop-filter: blur(6px);
        }
        .article-content-wrap img {
            border-radius: var(--radius-sm);
            margin: 30px 0;
            box-shadow: 0 10px 25px rgba(0,0,0,0.3);
        }
        .article-content-wrap h2 {
            font-size: 1.75rem;
            font-weight: 800;
            margin-top: 40px;
            margin-bottom: 20px;
            color: var(--text);
            line-height: 1.3;
        }
        .article-content-wrap h3 {
            font-size: 1.35rem;
            font-weight: 700;
            margin-top: 30px;
            margin-bottom: 16px;
            color: var(--text);
        }
        .article-content-wrap p {
            margin-bottom: 20px;
            color: var(--muted);
            line-height: 1.7;
        }
        .article-content-wrap ul,
        .article-content-wrap ol {
            margin-bottom: 25px;
            padding-left: 25px;
            color: var(--muted);
        }
        .article-content-wrap li { margin-bottom: 10px; }
        .article-content-wrap blockquote {
            border-left: 4px solid var(--neon-cyan);
            background: rgba(34,211,238,0.05);
            padding: 20px 25px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 30px 0;
            color: var(--text);
            font-style: italic;
        }
        .article-content-wrap a {
            color: var(--neon-cyan);
            text-decoration: underline;
        }
        .article-content-wrap a:hover { color: var(--neon-teal); }
        .not-found-msg {
            text-align: center;
            padding: 60px 0;
        }
        .not-found-msg i {
            font-size: 4rem;
            color: var(--neon-pink);
            margin-bottom: 20px;
        }
        /* Download CTA */
        .download-cta {
            background: linear-gradient(135deg, #0B2335, #0E2B3F);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .download-btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            align-items: center;
        }
        .btn-download {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            padding: 14px 26px;
            border-radius: 18px;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .btn-download i { font-size: 1.6rem; }
        .btn-apk {
            background: linear-gradient(135deg, #A3E635, #22D3EE);
            color: #04151F;
            box-shadow: 0 8px 20px rgba(163,230,53,0.25);
        }
        .btn-apk:hover {
            color: #04151F;
            transform: translateY(-3px);
            box-shadow: 0 12px 28px rgba(163,230,53,0.4);
        }
        .btn-ios {
            background: linear-gradient(135deg, #F43F5E, #EC4899);
            color: #fff;
            box-shadow: 0 8px 20px rgba(244,63,94,0.3);
        }
        .btn-ios:hover {
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 12px 28px rgba(244,63,94,0.45);
        }
        /* Feature Blocks */
        .feature-block {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 25px;
            height: 100%;
            transition: var(--transition);
        }
        .feature-block:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-glow);
            transform: translateY(-4px);
        }
        .feature-block .icon-circle {
            width: 48px;
            height: 48px;
            background: rgba(34,211,238,0.1);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--neon-cyan);
            margin-bottom: 15px;
        }
        .feature-block h5 { font-weight: 700; margin-bottom: 10px; color: var(--text); }
        .feature-block p { color: var(--muted); font-size: .95rem; margin-bottom: 0; }
        /* FAQ */
        .accordion-cyber .accordion-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 12px;
            overflow: hidden;
        }
        .accordion-cyber .accordion-button {
            background: transparent;
            color: var(--text);
            font-weight: 600;
            padding: 18px 20px;
            box-shadow: none;
        }
        .accordion-cyber .accordion-button:not(.collapsed) {
            background: rgba(34,211,238,0.05);
            color: var(--neon-cyan);
        }
        .accordion-cyber .accordion-button::after {
            filter: invert(1);
        }
        .accordion-cyber .accordion-body {
            color: var(--muted);
            padding: 0 20px 18px;
        }
        /* Related Posts */
        .related-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-glow);
            transform: translateY(-4px);
        }
        .related-card .card-img-top {
            height: 180px;
            object-fit: cover;
        }
        .related-card .card-body {
            padding: 20px;
            flex: 1;
        }
        .related-card .card-title {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 10px;
            color: var(--text);
        }
        .related-card .card-text {
            color: var(--muted);
            font-size: .9rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        /* Trust Strip */
        .trust-strip {
            background: var(--bg-2);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 30px 0;
        }
        .trust-item {
            display: flex;
            align-items: center;
            gap: 10px;
            justify-content: center;
            font-weight: 600;
            color: var(--muted);
        }
        .trust-item i { color: var(--neon-cyan); font-size: 1.2rem; }
        /* Footer */
        .footer-cyber {
            background: #040A12;
            border-top: 1px solid rgba(34,211,238,0.15);
            padding: 60px 0 30px;
            color: var(--muted);
        }
        .footer-brand {
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text);
        }
        .payment-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 15px;
        }
        .payment-badges span {
            background: rgba(34,211,238,0.08);
            border: 1px solid var(--border);
            padding: 6px 12px;
            border-radius: 8px;
            font-size: .8rem;
            font-weight: 600;
            color: var(--neon-cyan);
        }
        .footer-cyber h5 {
            color: var(--text);
            font-weight: 700;
            margin-bottom: 20px;
            font-size: 1rem;
        }
        .footer-cyber ul {
            list-style: none;
            padding: 0;
        }
        .footer-cyber ul li { margin-bottom: 10px; }
        .footer-cyber ul a {
            color: var(--muted);
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-cyber ul a:hover { color: var(--neon-cyan); }
        .footer-bottom {
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid rgba(34,211,238,0.1);
            font-size: .9rem;
            color: #64748B;
        }
        .btn-neon {
            background: linear-gradient(135deg, #22D3EE, #14F1D9);
            color: #04151F;
            border: none;
            font-weight: 700;
            border-radius: 999px;
            padding: 12px 24px;
            box-shadow: 0 0 18px rgba(34,211,238,0.35);
        }
        @media (max-width: 991.98px) {
            .nav-right-actions { margin-top: 10px; width: 100%; }
            .navbar-collapse { background: rgba(5,10,20,0.95); border-radius: 16px; padding: 20px; margin-top: 10px; }
            .navbar-cyber .nav-link { margin: 4px 0; }
            .article-content-wrap { padding: 24px; }
            .article-hero { padding-top: 130px; min-height: 380px; }
        }
        @media (max-width: 575.98px) {
            .section-pad { padding: 60px 0; }
            .display-title { font-size: 1.75rem; }
            .article-meta { gap: 10px; }
            .download-btn-group { flex-direction: column; align-items: stretch; }
            .btn-download { justify-content: center; }
        }

/* roulang page: category1 */
:root {
            --bg: #050A14;
            --bg-2: #071524;
            --surface: rgba(13, 34, 53, 0.88);
            --surface-2: #0B2335;
            --surface-3: #0E2B3F;
            --neon-cyan: #22D3EE;
            --neon-teal: #14F1D9;
            --neon-lime: #A3E635;
            --neon-pink: #F43F5E;
            --text: #F8FAFC;
            --muted: #94A3B8;
            --border: rgba(34, 211, 238, 0.16);
            --border-strong: rgba(34, 211, 238, 0.32);
            --radius: 22px;
            --radius-sm: 14px;
            --shadow-glow: 0 0 22px rgba(34, 211, 238, 0.20);
            --shadow-glow-strong: 0 0 30px rgba(34, 211, 238, 0.40);
            --font: 'Be Vietnam Pro', sans-serif;
            --transition: all .25s ease-in-out;
        }

        html { scroll-behavior: smooth; }

        body {
            font-family: var(--font);
            background: radial-gradient(circle at 80% 0%, rgba(34, 211, 238, 0.08), transparent 40%), var(--bg);
            color: var(--text);
            line-height: 1.6;
            margin: 0;
            overflow-x: hidden;
        }

        a { color: var(--neon-cyan); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--neon-teal); }
        img { max-width: 100%; display: block; }

        .section-pad { padding: 80px 0; }
        .section-label {
            display: inline-block;
            padding: 6px 14px;
            border: 1px solid var(--border-strong);
            border-radius: 999px;
            background: rgba(34, 211, 238, 0.06);
            color: var(--neon-cyan);
            font-weight: 600;
            font-size: .8rem;
            letter-spacing: .5px;
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .display-title {
            font-weight: 800;
            letter-spacing: -.5px;
            line-height: 1.15;
            color: var(--text);
        }
        .lead-muted {
            color: var(--muted);
            font-size: 1.05rem;
            line-height: 1.65;
        }

        .btn-neon {
            background: linear-gradient(135deg, #22D3EE, #14F1D9);
            color: #04151F;
            border: none;
            font-weight: 700;
            border-radius: 999px;
            padding: 12px 24px;
            box-shadow: 0 0 18px rgba(34, 211, 238, 0.35);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .btn-neon:hover {
            color: #04151F;
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(34, 211, 238, 0.55);
        }
        .btn-outline-neon {
            background: transparent;
            border: 1px solid var(--border-strong);
            color: var(--neon-cyan);
            border-radius: 999px;
            padding: 11px 22px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-outline-neon:hover {
            background: rgba(34, 211, 238, 0.08);
            border-color: var(--neon-cyan);
            color: var(--neon-teal);
        }

        /* Navbar */
        .navbar-cyber {
            background: rgba(5, 10, 20, 0.78);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(34, 211, 238, 0.12);
            padding: 14px 0;
            transition: var(--transition);
        }
        .navbar-cyber .navbar-brand {
            font-weight: 800;
            font-size: 1.05rem;
            color: var(--text);
            letter-spacing: -.3px;
            white-space: normal;
            line-height: 1.25;
        }
        .navbar-cyber .navbar-brand span {
            color: var(--neon-cyan);
        }
        .navbar-cyber .nav-link {
            color: var(--muted);
            font-weight: 500;
            margin: 0 4px;
            padding: 8px 12px !important;
            border-radius: 10px;
            transition: var(--transition);
        }
        .navbar-cyber .nav-link:hover,
        .navbar-cyber .nav-link.active {
            color: var(--neon-cyan);
            background: rgba(34, 211, 238, 0.06);
        }
        .navbar-cyber .login-btn {
            border: 1px solid rgba(34, 211, 238, 0.35);
            color: var(--neon-cyan);
            background: transparent;
            font-weight: 600;
            padding: 9px 16px;
            border-radius: 999px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .navbar-cyber .login-btn:hover {
            background: rgba(34, 211, 238, 0.1);
            color: var(--neon-teal);
        }
        .navbar-cyber .signup-btn {
            padding: 9px 18px;
            border-radius: 999px;
            font-weight: 700;
            white-space: nowrap;
            background: linear-gradient(135deg, #22D3EE, #A3E635);
            color: #04151F;
            border: none;
            box-shadow: 0 0 16px rgba(34, 211, 238, 0.35);
            transition: var(--transition);
        }
        .navbar-cyber .signup-btn:hover {
            color: #04151F;
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(163, 230, 53, 0.45);
        }
        .navbar-toggler {
            border: 1px solid var(--border-strong);
            color: var(--neon-cyan);
        }
        .nav-right-actions {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* Hero */
        .hero-cyber {
            position: relative;
            padding: 150px 0 90px;
            background: url('/assets/images/2d9e25232e7c1ec5.jpg') center/cover no-repeat;
            min-height: 620px;
        }
        .hero-cyber::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(5, 10, 20, 0.95) 20%, rgba(8, 23, 39, 0.82) 60%, rgba(5, 10, 20, 0.65) 100%);
            backdrop-filter: blur(2px);
        }
        .hero-cyber .container { position: relative; z-index: 2; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(163, 230, 53, 0.1);
            border: 1px solid rgba(163, 230, 53, 0.35);
            color: var(--neon-lime);
            padding: 6px 12px;
            border-radius: 999px;
            font-size: .82rem;
            font-weight: 600;
        }
        .hero-card {
            background: rgba(13, 34, 53, 0.92);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.45);
            backdrop-filter: blur(10px);
        }
        .hero-card .hero-card-img {
            position: relative;
            min-height: 260px;
            background: url('/assets/images/eee610190858559b.png') center/cover no-repeat;
        }
        .hero-card .hero-card-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(5, 10, 20, 0.9) 100%);
        }
        .hero-card .hero-card-body {
            padding: 22px 24px 26px;
        }
        .hero-card .hero-card-tag {
            display: inline-block;
            background: rgba(34, 211, 238, 0.1);
            border: 1px solid rgba(34, 211, 238, 0.3);
            color: var(--neon-cyan);
            padding: 4px 12px;
            border-radius: 999px;
            font-size: .72rem;
            font-weight: 700;
            letter-spacing: .3px;
            text-transform: uppercase;
        }

        /* Feature Cards */
        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 26px;
            height: 100%;
            transition: var(--transition);
            position: relative;
        }
        .feature-card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-glow);
            transform: translateY(-4px);
        }
        .feature-card .icon-wrap {
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 14px;
            background: rgba(34, 211, 238, 0.1);
            border: 1px solid rgba(34, 211, 238, 0.25);
            color: var(--neon-cyan);
            font-size: 1.4rem;
            margin-bottom: 16px;
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }
        .feature-card p {
            color: var(--muted);
            font-size: .92rem;
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* Step Timeline */
        .step-item {
            display: flex;
            gap: 20px;
            margin-bottom: 28px;
            position: relative;
        }
        .step-item::after {
            content: "";
            position: absolute;
            left: 27px;
            top: 50px;
            bottom: -28px;
            width: 2px;
            background: linear-gradient(180deg, rgba(34, 211, 238, 0.35), transparent);
        }
        .step-item:last-child::after { display: none; }
        .step-number {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #22D3EE, #14F1D9);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.25rem;
            color: #04151F;
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.35);
            z-index: 2;
        }
        .step-content h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
        }
        .step-content p {
            color: var(--muted);
            font-size: .9rem;
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* Version Info */
        .version-card {
            background: var(--surface-2);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 26px 28px;
            height: 100%;
        }
        .version-card .ver-badge {
            display: inline-block;
            background: rgba(163, 230, 53, 0.1);
            border: 1px solid rgba(163, 230, 53, 0.3);
            color: var(--neon-lime);
            padding: 4px 14px;
            border-radius: 999px;
            font-size: .8rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .version-card h4 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .version-card p {
            color: var(--muted);
            font-size: .9rem;
            line-height: 1.6;
        }

        /* Device List */
        .device-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .device-list li {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 8px 18px;
            font-size: .85rem;
            color: var(--muted);
            font-weight: 500;
            transition: var(--transition);
        }
        .device-list li:hover {
            border-color: var(--neon-cyan);
            color: var(--neon-cyan);
        }

        /* News List */
        .news-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 20px 22px;
            height: 100%;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-glow);
            transform: translateY(-3px);
        }
        .news-card h4 {
            font-size: .95rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .news-card h4 a {
            color: var(--text);
        }
        .news-card h4 a:hover {
            color: var(--neon-cyan);
        }
        .news-card p {
            color: var(--muted);
            font-size: .85rem;
            line-height: 1.55;
            flex-grow: 1;
            margin-bottom: 12px;
        }
        .news-meta {
            font-size: .75rem;
            color: var(--muted);
            opacity: 0.7;
            display: flex;
            gap: 12px;
            align-items: center;
        }
        .news-meta .news-cat {
            background: rgba(34, 211, 238, 0.08);
            color: var(--neon-cyan);
            padding: 2px 10px;
            border-radius: 999px;
            font-weight: 600;
        }

        /* FAQ */
        .accordion-neon .accordion-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 16px;
            overflow: hidden;
        }
        .accordion-neon .accordion-button {
            background: transparent;
            color: var(--text);
            font-weight: 600;
            padding: 18px 22px;
            font-size: .95rem;
            box-shadow: none;
        }
        .accordion-neon .accordion-button:not(.collapsed) {
            background: rgba(34, 211, 238, 0.06);
            color: var(--neon-cyan);
            box-shadow: none;
        }
        .accordion-neon .accordion-button::after {
            filter: invert(1) brightness(0.8);
        }
        .accordion-neon .accordion-body {
            color: var(--muted);
            font-size: .9rem;
            line-height: 1.7;
            padding: 0 22px 18px;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, rgba(13, 34, 53, 0.92), rgba(5, 10, 20, 0.98));
            border: 1px solid var(--border-strong);
            border-radius: var(--radius);
            padding: 50px 40px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: -40%;
            right: -15%;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.18), transparent 60%);
            border-radius: 50%;
        }
        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(163, 230, 53, 0.12), transparent 60%);
            border-radius: 50%;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        /* Footer */
        .footer-cyber {
            background: rgba(5, 10, 20, 0.92);
            border-top: 1px solid rgba(34, 211, 238, 0.12);
            padding: 60px 0 30px;
            margin-top: 80px;
        }
        .footer-cyber .footer-brand {
            font-weight: 800;
            font-size: 1.05rem;
            color: var(--text);
            line-height: 1.3;
        }
        .footer-cyber p {
            color: var(--muted);
            font-size: .88rem;
            line-height: 1.6;
        }
        .footer-cyber h5 {
            color: var(--text);
            font-size: .95rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-cyber ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-cyber ul li {
            margin-bottom: 8px;
        }
        .footer-cyber ul li a {
            color: var(--muted);
            font-size: .85rem;
            transition: var(--transition);
        }
        .footer-cyber ul li a:hover {
            color: var(--neon-cyan);
        }
        .footer-cyber .payment-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 16px;
        }
        .footer-cyber .payment-badges span {
            background: var(--surface-2);
            border: 1px solid var(--border);
            color: var(--muted);
            font-size: .75rem;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 6px;
        }
        .footer-cyber .footer-bottom {
            border-top: 1px solid rgba(34, 211, 238, 0.1);
            padding-top: 22px;
            margin-top: 40px;
            color: var(--muted);
            font-size: .78rem;
        }
        .footer-cyber .small {
            font-size: .8rem;
        }
        .footer-cyber .form-control {
            background: rgba(11, 35, 53, 0.8);
            border: 1px solid rgba(34, 211, 238, 0.25);
            color: var(--text);
            border-radius: 10px;
            font-size: .88rem;
        }
        .footer-cyber .form-control:focus {
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.25);
            border-color: var(--neon-cyan);
            background: rgba(11, 35, 53, 0.9);
            color: var(--text);
        }

        /* FAB */
        .fab-cyber {
            position: fixed;
            left: 1.25rem;
            bottom: 6rem;
            z-index: 1050;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(7, 7, 13, 0.85);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--neon-cyan);
            font-size: 1.5rem;
            box-shadow: 0 0 20px rgba(6, 182, 212, 0.45);
            opacity: 0.75;
            transition: all .3s ease;
            animation: fabPulse 3s ease-in-out infinite;
            position: relative;
        }
        .fab-cyber::before {
            content: "";
            position: absolute;
            inset: -2px;
            border-radius: 50%;
            background: linear-gradient(135deg, #A3E635, #22D3EE, #F43F5E);
            z-index: -1;
            background-size: 200% 200%;
            animation: gradientShift 3s ease infinite;
        }
        .fab-cyber:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 32px rgba(6, 182, 212, 0.6);
        }
        .fab-cyber:active {
            transform: scale(0.95);
        }
        .fab-cyber .fab-badge {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            background: #F43F5E;
            border-radius: 50%;
            border: 2px solid #fff;
            animation: badgeBlink 1.5s ease-in-out infinite;
        }

        @keyframes fabPulse {
            0%, 100% { opacity: 0.75; }
            50% { opacity: 0.95; }
        }
        @keyframes badgeBlink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        @keyframes gradientShift {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }

        /* Responsive */
        @media (max-width: 991.98px) {
            .hero-cyber { padding: 130px 0 70px; min-height: auto; }
            .nav-right-actions { margin-top: 8px; }
            .navbar-collapse { padding-top: 12px; }
        }
        @media (max-width: 767.98px) {
            .section-pad { padding: 50px 0; }
            .hero-cyber { padding: 120px 0 50px; }
            .display-title { font-size: 1.8rem; }
            .cta-section { padding: 35px 20px; }
            .step-item { gap: 14px; }
            .step-number { width: 46px; height: 46px; font-size: 1rem; }
            .step-item::after { left: 22px; }
            .fab-cyber { bottom: 5rem; width: 50px; height: 50px; font-size: 1.3rem; }
        }
        @media (max-width: 520px) {
            .hero-cyber { padding: 110px 0 40px; }
            .navbar-cyber .navbar-brand { font-size: .9rem; }
            .nav-right-actions { flex-wrap: wrap; }
            .hero-card .hero-card-img { min-height: 200px; }
            .display-title { font-size: 1.6rem; }
            .section-label { font-size: .7rem; }
        }

/* roulang page: category2 */
:root {
            --bg: #050A14;
            --bg-2: #071524;
            --surface: rgba(13, 34, 53, 0.88);
            --surface-2: #0B2335;
            --surface-3: #0E2B3F;
            --neon-cyan: #22D3EE;
            --neon-teal: #14F1D9;
            --neon-lime: #A3E635;
            --neon-pink: #F43F5E;
            --text: #F8FAFC;
            --muted: #94A3B8;
            --border: rgba(34, 211, 238, 0.16);
            --border-strong: rgba(34, 211, 238, 0.32);
            --radius: 22px;
            --radius-sm: 14px;
            --shadow-glow: 0 0 22px rgba(34, 211, 238, 0.20);
            --shadow-glow-strong: 0 0 30px rgba(34, 211, 238, 0.40);
            --font: 'Be Vietnam Pro', sans-serif;
            --transition: all .25s ease-in-out;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font);
            background: radial-gradient(circle at 80% 0%, rgba(34,211,238,0.08), transparent 40%), var(--bg);
            color: var(--text);
            line-height: 1.6;
            margin: 0;
            overflow-x: hidden;
            padding-top: 80px;
        }
        a { color: var(--neon-cyan); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--neon-teal); }
        img { max-width: 100%; display: block; }
        .section-pad { padding: 80px 0; }
        .section-label {
            display: inline-block;
            padding: 6px 14px;
            border: 1px solid var(--border-strong);
            border-radius: 999px;
            background: rgba(34,211,238,0.06);
            color: var(--neon-cyan);
            font-weight: 600;
            font-size: .8rem;
            letter-spacing: .5px;
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .display-title {
            font-weight: 800;
            letter-spacing: -.5px;
            line-height: 1.15;
            color: var(--text);
        }
        .lead-muted {
            color: var(--muted);
            font-size: 1.05rem;
            line-height: 1.65;
        }
        .btn-neon {
            background: linear-gradient(135deg, #22D3EE, #14F1D9);
            color: #04151F;
            border: none;
            font-weight: 700;
            border-radius: 999px;
            padding: 12px 24px;
            box-shadow: 0 0 18px rgba(34,211,238,0.35);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .btn-neon:hover {
            color: #04151F;
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(34,211,238,0.55);
        }
        .btn-outline-neon {
            background: transparent;
            border: 1px solid var(--border-strong);
            color: var(--neon-cyan);
            border-radius: 999px;
            padding: 11px 22px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-outline-neon:hover {
            background: rgba(34,211,238,0.08);
            border-color: var(--neon-cyan);
            color: var(--neon-teal);
        }
        /* Navbar */
        .navbar-cyber {
            background: rgba(5,10,20,0.78);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(34,211,238,0.12);
            padding: 14px 0;
            transition: var(--transition);
        }
        .navbar-cyber .navbar-brand {
            font-weight: 800;
            font-size: 1.05rem;
            color: var(--text);
            letter-spacing: -.3px;
            white-space: normal;
            line-height: 1.25;
        }
        .navbar-cyber .navbar-brand span {
            color: var(--neon-cyan);
        }
        .navbar-cyber .nav-link {
            color: var(--muted);
            font-weight: 500;
            margin: 0 4px;
            padding: 8px 12px !important;
            border-radius: 10px;
            transition: var(--transition);
        }
        .navbar-cyber .nav-link:hover,
        .navbar-cyber .nav-link.active {
            color: var(--neon-cyan);
            background: rgba(34,211,238,0.06);
        }
        .navbar-cyber .login-btn {
            border: 1px solid rgba(34,211,238,0.35);
            color: var(--neon-cyan);
            background: transparent;
            font-weight: 600;
            padding: 9px 16px;
            border-radius: 999px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .navbar-cyber .login-btn:hover {
            background: rgba(34,211,238,0.1);
            color: var(--neon-teal);
        }
        .navbar-cyber .signup-btn {
            padding: 9px 18px;
            border-radius: 999px;
            font-weight: 700;
            white-space: nowrap;
            background: linear-gradient(135deg, #22D3EE, #A3E635);
            color: #04151F;
            border: none;
            box-shadow: 0 0 16px rgba(34,211,238,0.35);
            transition: var(--transition);
        }
        .navbar-cyber .signup-btn:hover {
            color: #04151F;
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(163,230,53,0.45);
        }
        .navbar-toggler {
            border: 1px solid var(--border-strong);
            color: var(--neon-cyan);
        }
        .nav-right-actions {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        /* Hero */
        .hero-cyber {
            position: relative;
            padding: 90px 0 80px;
            background: url('/assets/images/2d9e25232e7c1ec5.jpg') center/cover no-repeat;
            min-height: 560px;
        }
        .hero-cyber::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(5,10,20,0.95) 20%, rgba(8,23,39,0.82) 60%, rgba(5,10,20,0.65) 100%);
            backdrop-filter: blur(2px);
        }
        .hero-cyber .container { position: relative; z-index: 2; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(163,230,53,0.1);
            border: 1px solid rgba(163,230,53,0.35);
            color: var(--neon-lime);
            padding: 6px 12px;
            border-radius: 999px;
            font-size: .82rem;
            font-weight: 600;
        }
        .hero-title {
            font-size: 2.5rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .hero-sub {
            color: var(--muted);
            font-size: 1.1rem;
            max-width: 580px;
        }
        .hero-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .hero-list li {
            margin-bottom: 10px;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .hero-list i {
            color: var(--neon-lime);
            font-size: 1rem;
            width: 20px;
        }
        .hero-time-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow-glow);
            backdrop-filter: blur(10px);
        }
        .hero-time-card h5 {
            color: var(--neon-cyan);
            font-weight: 700;
        }
        .hero-time-card .time-slot {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 12px;
        }
        .hero-time-card .time-slot span {
            background: rgba(34,211,238,0.08);
            border: 1px solid var(--border);
            padding: 8px 12px;
            border-radius: 8px;
            font-size: .85rem;
            color: var(--text);
            cursor: pointer;
            transition: var(--transition);
        }
        .hero-time-card .time-slot span:hover {
            background: rgba(34,211,238,0.2);
            border-color: var(--neon-cyan);
        }
        /* Metrics */
        .metric-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 24px;
            transition: var(--transition);
            height: 100%;
        }
        .metric-card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-glow);
        }
        .metric-card .metric-icon {
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: rgba(34,211,238,0.1);
            color: var(--neon-cyan);
            font-size: 1.4rem;
            margin-bottom: 16px;
        }
        .metric-card h3 {
            font-weight: 800;
            font-size: 2rem;
            color: var(--text);
            margin-bottom: 4px;
        }
        .metric-card p {
            color: var(--muted);
            margin: 0;
        }
        /* Service cards */
        .service-card {
            background: var(--surface-2);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px;
            transition: var(--transition);
            height: 100%;
        }
        .service-card:hover {
            transform: translateY(-5px);
            border-color: var(--neon-cyan);
            box-shadow: var(--shadow-glow);
        }
        .service-card .service-icon {
            font-size: 2rem;
            color: var(--neon-cyan);
            margin-bottom: 16px;
        }
        .service-card h4 {
            font-weight: 700;
            margin-bottom: 12px;
        }
        .service-card p {
            color: var(--muted);
            font-size: .95rem;
        }
        .service-card .btn {
            margin-top: 8px;
        }
        /* Compare table */
        .compare-table {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
        }
        .compare-table table {
            margin-bottom: 0;
            color: var(--text);
        }
        .compare-table th, .compare-table td {
            padding: 16px 20px;
            border-color: var(--border);
            vertical-align: middle;
        }
        .compare-table thead th {
            background: var(--surface-3);
            font-weight: 700;
            color: var(--neon-cyan);
            text-transform: uppercase;
            font-size: .85rem;
        }
        .compare-table .fa-check {
            color: var(--neon-lime);
        }
        .compare-table .fa-times {
            color: var(--neon-pink);
        }
        /* Milestone */
        .milestone-item {
            display: flex;
            gap: 20px;
            margin-bottom: 32px;
        }
        .milestone-icon {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            background: rgba(34,211,238,0.1);
            border: 1px solid var(--border);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--neon-cyan);
            font-size: 1.4rem;
        }
        .milestone-content h5 {
            font-weight: 700;
            margin-bottom: 6px;
        }
        .milestone-content p {
            color: var(--muted);
            margin: 0;
        }
        /* News list */
        .news-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
        }
        .news-card:hover {
            border-color: var(--border-strong);
            transform: translateY(-3px);
            box-shadow: var(--shadow-glow);
        }
        .news-card img {
            height: 180px;
            object-fit: cover;
            width: 100%;
        }
        .news-card .news-body {
            padding: 18px;
        }
        .news-card .news-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: .8rem;
            color: var(--muted);
            margin-bottom: 8px;
        }
        .news-card .news-meta i {
            color: var(--neon-cyan);
        }
        .news-card h5 {
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .news-card h5 a {
            color: var(--text);
        }
        .news-card h5 a:hover {
            color: var(--neon-cyan);
        }
        .news-card p {
            color: var(--muted);
            font-size: .9rem;
            margin-bottom: 0;
        }
        /* Security */
        .security-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            margin-bottom: 24px;
        }
        .security-item i {
            font-size: 1.5rem;
            color: var(--neon-lime);
            margin-top: 2px;
        }
        .security-item h5 {
            font-weight: 700;
            margin-bottom: 4px;
        }
        .security-item p {
            color: var(--muted);
            margin: 0;
        }
        /* FAQ */
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
        }
        .faq-item .faq-question {
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }
        .faq-item .faq-question:hover {
            background: rgba(34,211,238,0.04);
        }
        .faq-item .faq-question i {
            transition: var(--transition);
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease, padding .3s ease;
            color: var(--muted);
        }
        .faq-item.open .faq-answer {
            padding: 0 20px 16px;
            max-height: 300px;
        }
        /* CTA form */
        .cta-section {
            background: linear-gradient(135deg, rgba(34,211,238,0.05), rgba(163,230,53,0.03));
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 40px;
        }
        .cta-section .form-control {
            background: rgba(13,34,53,0.8);
            border: 1px solid var(--border);
            color: var(--text);
            border-radius: 12px;
            padding: 12px 16px;
        }
        .cta-section .form-control:focus {
            border-color: var(--neon-cyan);
            box-shadow: 0 0 0 0.2rem rgba(34,211,238,0.15);
            background: rgba(13,34,53,0.9);
        }
        /* Footer */
        .footer-cyber {
            background: rgba(5,10,20,0.92);
            border-top: 1px solid rgba(34,211,238,0.12);
            padding: 60px 0 20px;
            margin-top: 0;
        }
        .footer-brand {
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--text);
            margin-bottom: 12px;
        }
        .footer-cyber p {
            color: var(--muted);
            font-size: .95rem;
        }
        .payment-badges span {
            display: inline-block;
            background: rgba(34,211,238,0.08);
            border: 1px solid var(--border);
            padding: 4px 12px;
            border-radius: 999px;
            font-size: .78rem;
            color: var(--neon-cyan);
            margin-right: 6px;
            margin-bottom: 6px;
        }
        .footer-cyber h5 {
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
        }
        .footer-cyber ul {
            list-style: none;
            padding: 0;
        }
        .footer-cyber ul li {
            margin-bottom: 8px;
        }
        .footer-cyber ul li a {
            color: var(--muted);
            font-size: .9rem;
            transition: var(--transition);
        }
        .footer-cyber ul li a:hover {
            color: var(--neon-cyan);
        }
        .footer-cyber .small {
            color: var(--muted);
            font-size: .85rem;
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            margin-top: 40px;
            padding-top: 20px;
            color: var(--muted);
            font-size: .85rem;
        }
        /* FAB */
        .fab-cyber {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 1050;
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(7,7,13,0.85);
            backdrop-filter: blur(8px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(7,7,13,0.85), rgba(7,7,13,0.85)), linear-gradient(135deg, #A3E635, #06B6D4);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--neon-cyan);
            font-size: 1.4rem;
            transition: var(--transition);
            box-shadow: 0 0 20px rgba(34,211,238,0.35);
        }
        .fab-cyber:hover {
            color: var(--neon-lime);
            transform: scale(1.08);
            box-shadow: 0 0 30px rgba(163,230,53,0.45);
        }
        .fab-cyber::after {
            content: "";
            position: absolute;
            top: -3px;
            right: -3px;
            width: 12px;
            height: 12px;
            background: var(--neon-pink);
            border-radius: 50%;
            border: 2px solid #fff;
            animation: pulse-dot 1.5s infinite;
        }
        @keyframes pulse-dot {
            0% { transform: scale(1); opacity: 1; }
            50% { transform: scale(1.4); opacity: .6; }
            100% { transform: scale(1); opacity: 1; }
        }
        /* Responsive */
        @media (max-width: 991.98px) {
            .navbar-cyber .navbar-collapse {
                padding: 20px 0;
            }
            .nav-right-actions {
                margin-top: 12px;
                justify-content: center;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-cyber {
                padding: 70px 0 60px;
                min-height: auto;
            }
        }
        @media (max-width: 767.98px) {
            .section-pad {
                padding: 50px 0;
            }
            .display-title {
                font-size: 1.8rem;
            }
            .hero-title {
                font-size: 1.7rem;
            }
            .metric-card h3 {
                font-size: 1.5rem;
            }
            .footer-cyber {
                padding: 40px 0 20px;
            }
        }
        @media (max-width: 575.98px) {
            .navbar-cyber .navbar-brand {
                font-size: .9rem;
            }
            .nav-right-actions {
                flex-wrap: wrap;
                gap: 6px;
            }
            .login-btn, .signup-btn {
                padding: 7px 12px;
                font-size: .85rem;
            }
        }

/* roulang page: category3 */
:root {
            --bg: #050A14;
            --bg-2: #071524;
            --surface: rgba(13, 34, 53, 0.88);
            --surface-2: #0B2335;
            --surface-3: #0E2B3F;
            --neon-cyan: #22D3EE;
            --neon-teal: #14F1D9;
            --neon-lime: #A3E635;
            --neon-pink: #F43F5E;
            --text: #F8FAFC;
            --muted: #94A3B8;
            --border: rgba(34, 211, 238, 0.16);
            --border-strong: rgba(34, 211, 238, 0.32);
            --radius: 22px;
            --radius-sm: 14px;
            --shadow-glow: 0 0 22px rgba(34, 211, 238, 0.20);
            --shadow-glow-strong: 0 0 30px rgba(34, 211, 238, 0.40);
            --font: 'Be Vietnam Pro', sans-serif;
            --transition: all .25s ease-in-out;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            background: radial-gradient(circle at 80% 0%, rgba(34, 211, 238, 0.08), transparent 40%), var(--bg);
            color: var(--text);
            line-height: 1.65;
            margin: 0;
            overflow-x: hidden;
        }

        a {
            color: var(--neon-cyan);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--neon-teal);
        }
        img {
            max-width: 100%;
            display: block;
        }

        .section-pad {
            padding: 80px 0;
        }

        .section-label {
            display: inline-block;
            padding: 6px 14px;
            border: 1px solid var(--border-strong);
            border-radius: 999px;
            background: rgba(34, 211, 238, 0.06);
            color: var(--neon-cyan);
            font-weight: 600;
            font-size: .8rem;
            letter-spacing: .5px;
            text-transform: uppercase;
            margin-bottom: 14px;
        }

        .display-title {
            font-weight: 800;
            letter-spacing: -.5px;
            line-height: 1.15;
            color: var(--text);
        }

        .lead-muted {
            color: var(--muted);
            font-size: 1.05rem;
            line-height: 1.7;
        }

        .btn-neon {
            background: linear-gradient(135deg, #22D3EE, #14F1D9);
            color: #04151F;
            border: none;
            font-weight: 700;
            border-radius: 999px;
            padding: 12px 24px;
            box-shadow: 0 0 18px rgba(34, 211, 238, 0.35);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .btn-neon:hover {
            color: #04151F;
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(34, 211, 238, 0.55);
        }

        .btn-outline-neon {
            background: transparent;
            border: 1px solid var(--border-strong);
            color: var(--neon-cyan);
            border-radius: 999px;
            padding: 11px 22px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-outline-neon:hover {
            background: rgba(34, 211, 238, 0.08);
            border-color: var(--neon-cyan);
            color: var(--neon-teal);
        }

        /* Navbar */
        .navbar-cyber {
            background: rgba(5, 10, 20, 0.78);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(34, 211, 238, 0.12);
            padding: 14px 0;
            transition: var(--transition);
        }
        .navbar-cyber .navbar-brand {
            font-weight: 800;
            font-size: 1.05rem;
            color: var(--text);
            letter-spacing: -.3px;
            white-space: normal;
            line-height: 1.25;
        }
        .navbar-cyber .navbar-brand span {
            color: var(--neon-cyan);
        }
        .navbar-cyber .nav-link {
            color: var(--muted);
            font-weight: 500;
            margin: 0 4px;
            padding: 8px 12px !important;
            border-radius: 10px;
            transition: var(--transition);
        }
        .navbar-cyber .nav-link:hover,
        .navbar-cyber .nav-link.active {
            color: var(--neon-cyan);
            background: rgba(34, 211, 238, 0.06);
        }
        .navbar-cyber .login-btn {
            border: 1px solid rgba(34, 211, 238, 0.35);
            color: var(--neon-cyan);
            background: transparent;
            font-weight: 600;
            padding: 9px 16px;
            border-radius: 999px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .navbar-cyber .login-btn:hover {
            background: rgba(34, 211, 238, 0.1);
            color: var(--neon-teal);
        }
        .navbar-cyber .signup-btn {
            padding: 9px 18px;
            border-radius: 999px;
            font-weight: 700;
            white-space: nowrap;
            background: linear-gradient(135deg, #22D3EE, #A3E635);
            color: #04151F;
            border: none;
            box-shadow: 0 0 16px rgba(34, 211, 238, 0.35);
            transition: var(--transition);
        }
        .navbar-cyber .signup-btn:hover {
            color: #04151F;
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(163, 230, 53, 0.45);
        }
        .navbar-toggler {
            border: 1px solid var(--border-strong);
            color: var(--neon-cyan);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.3);
        }
        .nav-right-actions {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* Category Hero */
        .cat-hero {
            position: relative;
            padding: 160px 0 90px;
            background: url('/assets/images/3f47109ee1e5af5b.jpg') center/cover no-repeat;
            min-height: 580px;
        }
        .cat-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(5, 10, 20, 0.94) 15%, rgba(8, 23, 39, 0.8) 55%, rgba(5, 10, 20, 0.7) 100%);
            backdrop-filter: blur(2px);
        }
        .cat-hero .container {
            position: relative;
            z-index: 2;
        }
        .cat-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(163, 230, 53, 0.1);
            border: 1px solid rgba(163, 230, 53, 0.35);
            color: var(--neon-lime);
            padding: 6px 12px;
            border-radius: 999px;
            font-size: .82rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .cat-hero .display-title {
            font-size: 2.7rem;
            margin-bottom: 18px;
        }
        .cat-hero .lead-muted {
            font-size: 1.1rem;
            max-width: 640px;
        }
        .hero-stat-block {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 22px 24px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .hero-stat-block .stat-num {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--neon-lime);
            line-height: 1.2;
        }
        .hero-stat-block .stat-label {
            color: var(--muted);
            font-size: .85rem;
            font-weight: 500;
        }
        .hero-stat-block .stat-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(34, 211, 238, 0.1);
            border: 1px solid var(--border-strong);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--neon-cyan);
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        /* Data Dashboard */
        .data-dashboard {
            background: var(--bg-2);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 42px 0;
        }
        .dashboard-item {
            text-align: center;
            padding: 18px 12px;
            border-right: 1px solid var(--border);
        }
        .dashboard-item:last-child {
            border-right: none;
        }
        .dashboard-item .dash-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--neon-cyan);
            line-height: 1.2;
        }
        .dashboard-item .dash-label {
            color: var(--muted);
            font-size: .85rem;
            font-weight: 500;
            margin-top: 4px;
        }

        /* Tips Matrix */
        .tips-matrix .tip-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            height: 100%;
        }
        .tips-matrix .tip-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, #22D3EE, #14F1D9, #A3E635);
            opacity: 0;
            transition: var(--transition);
        }
        .tips-matrix .tip-card:hover {
            border-color: var(--border-strong);
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow);
        }
        .tips-matrix .tip-card:hover::before {
            opacity: 1;
        }
        .tip-card .tip-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(34, 211, 238, 0.1);
            border: 1px solid var(--border-strong);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--neon-cyan);
            font-size: 1.3rem;
            margin-bottom: 16px;
        }
        .tip-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }
        .tip-card p {
            color: var(--muted);
            font-size: .95rem;
            line-height: 1.65;
            margin-bottom: 0;
        }
        .tip-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 999px;
            background: rgba(34, 211, 238, 0.08);
            border: 1px solid var(--border);
            color: var(--neon-cyan);
            font-size: .72rem;
            font-weight: 600;
            letter-spacing: .4px;
            margin-bottom: 12px;
        }

        /* Weapon Guide */
        .weapon-guide {
            background: var(--bg-2);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 44px 40px;
            position: relative;
            overflow: hidden;
        }
        .weapon-guide::after {
            content: "";
            position: absolute;
            top: -40%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.1), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .weapon-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border);
        }
        .weapon-item:last-child {
            border-bottom: none;
        }
        .weapon-rank {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: rgba(163, 230, 53, 0.1);
            border: 1px solid rgba(163, 230, 53, 0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--neon-lime);
            font-weight: 700;
            font-size: .9rem;
        }
        .weapon-item h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }
        .weapon-item p {
            color: var(--muted);
            font-size: .9rem;
            margin-bottom: 0;
        }

        /* Milestone / Steps */
        .milestone-flow {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .milestone-item {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px 22px;
            transition: var(--transition);
        }
        .milestone-item:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-glow);
        }
        .milestone-number {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, #22D3EE, #14F1D9);
            color: #04151F;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
        }
        .milestone-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }
        .milestone-item p {
            color: var(--muted);
            font-size: .92rem;
            margin-bottom: 0;
        }

        /* FAQ */
        .accordion-cyber .accordion-item {
            background: var(--surface);
            border: 1px solid var(--border);
            margin-bottom: 12px;
            border-radius: var(--radius-sm) !important;
            overflow: hidden;
            transition: var(--transition);
        }
        .accordion-cyber .accordion-item:hover {
            border-color: var(--border-strong);
        }
        .accordion-cyber .accordion-button {
            background: transparent;
            color: var(--text);
            font-weight: 600;
            padding: 18px 20px;
            box-shadow: none;
            border: none;
            font-size: .98rem;
        }
        .accordion-cyber .accordion-button:not(.collapsed) {
            background: rgba(34, 211, 238, 0.06);
            color: var(--neon-cyan);
        }
        .accordion-cyber .accordion-button::after {
            filter: invert(1);
            opacity: 0.7;
        }
        .accordion-cyber .accordion-body {
            color: var(--muted);
            font-size: .92rem;
            padding: 16px 20px 18px;
            border-top: 1px solid var(--border);
        }
        .accordion-cyber .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.2);
        }

        /* CTA Panel */
        .cta-panel {
            background: linear-gradient(135deg, #0B2335, #0E2B3F);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius);
            padding: 48px 44px;
            position: relative;
            overflow: hidden;
        }
        .cta-panel::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, #22D3EE, #A3E635, #F43F5E);
        }
        .cta-panel::after {
            content: "";
            position: absolute;
            top: -50%;
            right: -20%;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(163, 230, 53, 0.12), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-panel .display-title {
            font-size: 1.7rem;
        }

        /* Info List */
        .info-list-section .info-card-link {
            display: block;
            height: 100%;
        }
        .info-list-section .info-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            cursor: pointer;
        }
        .info-list-section .info-card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-glow);
            transform: translateY(-3px);
        }
        .info-list-section .info-card .info-thumb {
            height: 180px;
            overflow: hidden;
            position: relative;
            background: var(--surface-2);
        }
        .info-list-section .info-card .info-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .info-list-section .info-card:hover .info-thumb img {
            transform: scale(1.05);
        }
        .info-list-section .info-card .info-body {
            padding: 18px 20px;
        }
        .info-list-section .info-card .info-cat {
            font-size: .72rem;
            font-weight: 600;
            color: var(--neon-cyan);
            text-transform: uppercase;
            letter-spacing: .5px;
            display: block;
            margin-bottom: 6px;
        }
        .info-list-section .info-card h5 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 8px;
        }
        .info-list-section .info-card .info-date {
            color: var(--muted);
            font-size: .8rem;
            display: flex;
            align-items: center;
            gap: 5px;
        }

        /* FAB */
        .fab-support {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #22D3EE, #A3E635);
            border: 2px solid #14F1D9;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #04151F;
            font-size: 1.4rem;
            box-shadow: 0 0 22px rgba(34, 211, 238, 0.45);
            cursor: pointer;
            transition: all .3s ease;
            animation: fab-breath 3s ease-in-out infinite;
        }
        .fab-support:hover {
            transform: scale(1.1);
            box-shadow: 0 0 32px rgba(163, 230, 53, 0.55);
        }
        @keyframes fab-breath {
            0%, 100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-6px);
            }
        }
        .fab-support .fab-badge {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: #F43F5E;
            border-radius: 50%;
            border: 2px solid #fff;
            animation: fab-pulse 2s ease-in-out infinite;
        }
        @keyframes fab-pulse {
            0%, 100% {
                opacity: 1;
            }
            50% {
                opacity: 0.5;
            }
        }

        /* Footer */
        .footer-cyber {
            background: var(--bg-2);
            border-top: 1px solid var(--border);
            padding: 60px 0 30px;
            margin-top: 40px;
        }
        .footer-cyber .footer-brand {
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--text);
            line-height: 1.3;
        }
        .footer-cyber .footer-brand span {
            color: var(--neon-cyan);
        }
        .footer-cyber p {
            color: var(--muted);
            font-size: .9rem;
            line-height: 1.6;
        }
        .footer-cyber .payment-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 16px;
        }
        .footer-cyber .payment-badges span {
            background: rgba(34, 211, 238, 0.08);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 4px 12px;
            color: var(--neon-cyan);
            font-size: .75rem;
            font-weight: 600;
        }
        .footer-cyber h5 {
            color: var(--text);
            font-size: .95rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-cyber ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-cyber ul li {
            margin-bottom: 8px;
        }
        .footer-cyber ul li a {
            color: var(--muted);
            font-size: .88rem;
            transition: var(--transition);
        }
        .footer-cyber ul li a:hover {
            color: var(--neon-cyan);
        }
        .footer-cyber .small {
            font-size: .82rem;
            color: var(--muted);
        }
        .footer-cyber .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            margin-top: 40px;
            font-size: .82rem;
            color: var(--muted);
            line-height: 1.6;
        }
        .footer-cyber .form-control {
            background: transparent;
            border: 1px solid var(--border-strong);
            color: var(--text);
            border-radius: 10px;
            padding: 10px 14px;
            font-size: .9rem;
        }
        .footer-cyber .form-control::placeholder {
            color: var(--muted);
            opacity: .6;
        }
        .footer-cyber .form-control:focus {
            border-color: var(--neon-cyan);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
            background: transparent;
            color: var(--text);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .cat-hero .display-title {
                font-size: 2.2rem;
            }
            .section-pad {
                padding: 60px 0;
            }
            .weapon-guide {
                padding: 32px 24px;
            }
            .cta-panel {
                padding: 36px 28px;
            }
        }
        @media (max-width: 768px) {
            .cat-hero {
                padding: 135px 0 60px;
                min-height: auto;
            }
            .cat-hero .display-title {
                font-size: 1.8rem;
            }
            .cat-hero .lead-muted {
                font-size: 1rem;
            }
            .section-pad {
                padding: 48px 0;
            }
            .dashboard-item {
                border-right: none;
                border-bottom: 1px solid var(--border);
            }
            .dashboard-item:last-child {
                border-bottom: none;
            }
            .navbar-cyber .nav-right-actions {
                gap: 5px;
            }
            .navbar-cyber .login-btn,
            .navbar-cyber .signup-btn {
                padding: 6px 12px;
                font-size: .82rem;
            }
            .weapon-guide {
                padding: 24px 16px;
            }
            .milestone-item {
                padding: 16px;
                gap: 12px;
            }
            .milestone-number {
                width: 36px;
                height: 36px;
                font-size: .95rem;
            }
            .cta-panel .display-title {
                font-size: 1.4rem;
            }
            .cta-panel {
                padding: 28px 18px;
            }
            .fab-support {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                left: 12px;
                bottom: 80px;
            }
            .info-list-section .info-card .info-thumb {
                height: 140px;
            }
        }
        @media (max-width: 520px) {
            .cat-hero .display-title {
                font-size: 1.5rem;
            }
            .cat-hero {
                padding: 120px 0 45px;
            }
            .section-pad {
                padding: 36px 0;
            }
            .display-title {
                font-size: 1.3rem;
            }
            .navbar-cyber .navbar-brand {
                font-size: .88rem;
            }
            .nav-right-actions {
                flex-direction: column;
                gap: 4px;
            }
            .navbar-cyber .login-btn,
            .navbar-cyber .signup-btn {
                padding: 5px 10px;
                font-size: .75rem;
            }
            .tips-matrix .tip-card {
                padding: 20px 16px;
            }
            .milestone-flow {
                gap: 12px;
            }
        }

/* roulang page: category4 */
:root {
            --bg: #050A14;
            --bg-2: #071524;
            --surface: rgba(13, 34, 53, 0.88);
            --surface-2: #0B2335;
            --surface-3: #0E2B3F;
            --neon-cyan: #22D3EE;
            --neon-teal: #14F1D9;
            --neon-lime: #A3E635;
            --neon-pink: #F43F5E;
            --text: #F8FAFC;
            --muted: #94A3B8;
            --border: rgba(34, 211, 238, 0.16);
            --border-strong: rgba(34, 211, 238, 0.32);
            --radius: 22px;
            --radius-sm: 14px;
            --shadow-glow: 0 0 22px rgba(34, 211, 238, 0.20);
            --shadow-glow-strong: 0 0 30px rgba(34, 211, 238, 0.40);
            --font: 'Be Vietnam Pro', sans-serif;
            --transition: all .25s ease-in-out;
        }

        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font);
            background: radial-gradient(circle at 80% 0%, rgba(34,211,238,0.08), transparent 40%), var(--bg);
            color: var(--text);
            line-height: 1.6;
            margin: 0;
            overflow-x: hidden;
        }
        a { color: var(--neon-cyan); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--neon-teal); }
        img { max-width: 100%; display: block; }
        .section-pad { padding: 80px 0; }
        .section-label {
            display: inline-block;
            padding: 6px 14px;
            border: 1px solid var(--border-strong);
            border-radius: 999px;
            background: rgba(34,211,238,0.06);
            color: var(--neon-cyan);
            font-weight: 600;
            font-size: .8rem;
            letter-spacing: .5px;
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .display-title {
            font-weight: 800;
            letter-spacing: -.5px;
            line-height: 1.15;
            color: var(--text);
        }
        .lead-muted {
            color: var(--muted);
            font-size: 1.05rem;
            line-height: 1.65;
        }
        .btn-neon {
            background: linear-gradient(135deg, #22D3EE, #14F1D9);
            color: #04151F;
            border: none;
            font-weight: 700;
            border-radius: 999px;
            padding: 12px 24px;
            box-shadow: 0 0 18px rgba(34,211,238,0.35);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .btn-neon:hover {
            color: #04151F;
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(34,211,238,0.55);
        }
        .btn-outline-neon {
            background: transparent;
            border: 1px solid var(--border-strong);
            color: var(--neon-cyan);
            border-radius: 999px;
            padding: 11px 22px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-outline-neon:hover {
            background: rgba(34,211,238,0.08);
            border-color: var(--neon-cyan);
            color: var(--neon-teal);
        }

        /* Navbar */
        .navbar-cyber {
            background: rgba(5,10,20,0.78);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(34,211,238,0.12);
            padding: 14px 0;
            transition: var(--transition);
        }
        .navbar-cyber .navbar-brand {
            font-weight: 800;
            font-size: 1.05rem;
            color: var(--text);
            letter-spacing: -.3px;
            white-space: normal;
            line-height: 1.25;
        }
        .navbar-cyber .navbar-brand span {
            color: var(--neon-cyan);
        }
        .navbar-cyber .nav-link {
            color: var(--muted);
            font-weight: 500;
            margin: 0 4px;
            padding: 8px 12px !important;
            border-radius: 10px;
            transition: var(--transition);
        }
        .navbar-cyber .nav-link:hover,
        .navbar-cyber .nav-link.active {
            color: var(--neon-cyan);
            background: rgba(34,211,238,0.06);
        }
        .navbar-cyber .login-btn {
            border: 1px solid rgba(34,211,238,0.35);
            color: var(--neon-cyan);
            background: transparent;
            font-weight: 600;
            padding: 9px 16px;
            border-radius: 999px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .navbar-cyber .login-btn:hover {
            background: rgba(34,211,238,0.1);
            color: var(--neon-teal);
        }
        .navbar-cyber .signup-btn {
            padding: 9px 18px;
            border-radius: 999px;
            font-weight: 700;
            white-space: nowrap;
            background: linear-gradient(135deg, #22D3EE, #A3E635);
            color: #04151F;
            border: none;
            box-shadow: 0 0 16px rgba(34,211,238,0.35);
            transition: var(--transition);
        }
        .navbar-cyber .signup-btn:hover {
            color: #04151F;
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(163,230,53,0.45);
        }
        .navbar-toggler {
            border: 1px solid var(--border-strong);
            color: var(--neon-cyan);
        }
        .nav-right-actions {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* Hero */
        .hero-cyber {
            position: relative;
            padding: 150px 0 90px;
            background: url('/assets/images/2d9e25232e7c1ec5.jpg') center/cover no-repeat;
            min-height: 620px;
            overflow: hidden;
        }
        .hero-cyber::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(5,10,20,0.95) 20%, rgba(8,23,39,0.82) 60%, rgba(5,10,20,0.65) 100%);
            backdrop-filter: blur(2px);
        }
        .hero-cyber .container { position: relative; z-index: 2; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(163,230,53,0.1);
            border: 1px solid rgba(163,230,53,0.35);
            color: var(--neon-lime);
            padding: 6px 12px;
            border-radius: 999px;
            font-size: .82rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .hero-cyber h1 {
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: -.5px;
            line-height: 1.12;
            color: var(--text);
            margin-bottom: 18px;
        }
        .hero-cyber h1 .highlight {
            background: linear-gradient(135deg, #14F1D9, #22D3EE, #A3E635);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-cyber .lead {
            color: var(--muted);
            font-size: 1.05rem;
            line-height: 1.65;
            max-width: 560px;
            margin-bottom: 24px;
        }
        .hero-promo-panel {
            background: rgba(11, 35, 53, 0.7);
            backdrop-filter: blur(16px);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow-glow);
        }
        .hero-promo-panel h3 {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--neon-lime);
            margin-bottom: 14px;
        }
        .hero-promo-panel ul {
            list-style: none;
            padding: 0;
            margin: 0 0 16px;
        }
        .hero-promo-panel ul li {
            padding: 8px 0;
            border-bottom: 1px solid rgba(255,255,255,0.06);
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--muted);
            font-size: .9rem;
        }
        .hero-promo-panel ul li i {
            color: var(--neon-teal);
            font-size: .75rem;
        }
        .hero-promo-panel .promo-total {
            font-size: 2rem;
            font-weight: 800;
            color: var(--neon-lime);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .hero-promo-panel .promo-label {
            color: var(--muted);
            font-size: .85rem;
        }

        /* Stats */
        .stats-section {
            background: var(--bg-2);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 40px 0;
        }
        .stat-item {
            text-align: left;
            padding: 16px 8px;
        }
        .stat-item .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--neon-cyan);
            letter-spacing: -.5px;
            line-height: 1.2;
        }
        .stat-item .stat-label {
            color: var(--muted);
            font-size: .87rem;
            margin-top: 4px;
        }

        /* Promo Cards */
        .promo-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            position: relative;
        }
        .promo-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-strong);
            box-shadow: var(--shadow-glow);
        }
        .promo-card .card-img {
            height: 180px;
            object-fit: cover;
            width: 100%;
        }
        .promo-card .card-body {
            padding: 20px;
        }
        .promo-card .promo-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(244, 63, 94, 0.9);
            color: #fff;
            padding: 4px 10px;
            border-radius: 999px;
            font-size: .72rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: .5px;
            z-index: 2;
        }
        .promo-card .promo-tag.green {
            background: rgba(163, 230, 53, 0.85);
            color: #04151F;
        }
        .promo-card .promo-tag.cyan {
            background: rgba(34, 211, 238, 0.85);
            color: #04151F;
        }
        .promo-card h5 {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 10px;
            color: var(--text);
        }
        .promo-card p {
            color: var(--muted);
            font-size: .9rem;
            margin-bottom: 14px;
        }
        .promo-card .promo-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: .82rem;
            color: var(--muted);
            padding-top: 12px;
            border-top: 1px solid var(--border);
        }
        .promo-card .promo-meta i {
            color: var(--neon-teal);
            margin-right: 4px;
        }

        /* Comparison Table */
        .compare-table-wrapper {
            overflow-x: auto;
            border-radius: var(--radius);
            border: 1px solid var(--border);
        }
        .compare-table {
            width: 100%;
            min-width: 700px;
            border-collapse: collapse;
            background: var(--surface);
        }
        .compare-table thead th {
            background: var(--surface-3);
            color: var(--neon-cyan);
            font-weight: 700;
            font-size: .9rem;
            padding: 16px 20px;
            text-align: left;
            border-bottom: 2px solid var(--border-strong);
            white-space: nowrap;
        }
        .compare-table tbody td {
            padding: 14px 20px;
            color: var(--muted);
            border-bottom: 1px solid var(--border);
            font-size: .9rem;
            vertical-align: middle;
        }
        .compare-table tbody tr:hover {
            background: rgba(34, 211, 238, 0.04);
        }
        .compare-table .highlight-cell {
            color: var(--neon-lime);
            font-weight: 600;
        }

        /* Steps */
        .step-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 24px;
            height: 100%;
            transition: var(--transition);
        }
        .step-item:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-glow);
        }
        .step-number {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, #22D3EE, #14F1D9);
            color: #04151F;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            margin-bottom: 14px;
        }
        .step-item h5 {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text);
            margin-bottom: 8px;
        }
        .step-item p {
            color: var(--muted);
            font-size: .9rem;
            margin-bottom: 0;
        }

        /* Article List */
        .article-card-mini {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 18px;
            transition: var(--transition);
            display: block;
            height: 100%;
        }
        .article-card-mini:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
            color: var(--neon-cyan);
        }
        .article-card-mini h6 {
            font-weight: 700;
            font-size: .95rem;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .article-card-mini p {
            color: var(--muted);
            font-size: .85rem;
            margin-bottom: 10px;
        }
        .article-card-mini .article-meta {
            font-size: .78rem;
            color: rgba(148, 163, 184, 0.7);
        }
        .article-card-mini:hover h6 {
            color: var(--neon-cyan);
        }

        /* Trust Section */
        .trust-section {
            background: var(--bg-2);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .trust-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 18px 0;
        }
        .trust-item .trust-icon {
            width: 44px;
            height: 44px;
            background: rgba(34, 211, 238, 0.1);
            border: 1px solid var(--border-strong);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--neon-cyan);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .trust-item h6 {
            font-weight: 700;
            font-size: .95rem;
            color: var(--text);
            margin-bottom: 4px;
        }
        .trust-item p {
            color: var(--muted);
            font-size: .85rem;
            margin-bottom: 0;
        }

        /* FAQ */
        .faq-section .accordion-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 10px;
            overflow: hidden;
        }
        .faq-section .accordion-button {
            background: var(--surface);
            color: var(--text);
            font-weight: 600;
            font-size: .95rem;
            padding: 18px 20px;
            box-shadow: none;
        }
        .faq-section .accordion-button:not(.collapsed) {
            background: var(--surface-2);
            color: var(--neon-cyan);
            box-shadow: none;
        }
        .faq-section .accordion-button:focus {
            box-shadow: 0 0 0 2px rgba(34, 211, 238, 0.25);
            border-color: transparent;
        }
        .faq-section .accordion-body {
            background: var(--surface);
            color: var(--muted);
            font-size: .9rem;
            padding: 16px 20px;
        }
        .faq-section .accordion-button::after {
            filter: invert(1) brightness(1.5);
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, rgba(34, 211, 238, 0.08), rgba(163, 230, 53, 0.05)), var(--bg-2);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .cta-box {
            background: rgba(11, 35, 53, 0.7);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius);
            padding: 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: "";
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.08) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-box h2 {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--text);
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-box p {
            color: var(--muted);
            font-size: .95rem;
            max-width: 480px;
            margin: 0 auto 20px;
            position: relative;
            z-index: 1;
        }
        .cta-box .btn-neon {
            position: relative;
            z-index: 1;
        }

        /* Footer */
        .footer-cyber {
            background: #030812;
            border-top: 1px solid var(--border);
            padding: 50px 0 20px;
        }
        .footer-brand {
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--text);
            line-height: 1.3;
        }
        .footer-cyber p {
            color: var(--muted);
            font-size: .87rem;
        }
        .footer-cyber h5 {
            font-weight: 700;
            font-size: .9rem;
            color: var(--neon-cyan);
            text-transform: uppercase;
            letter-spacing: .5px;
            margin-bottom: 14px;
        }
        .footer-cyber ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-cyber ul li {
            margin-bottom: 8px;
        }
        .footer-cyber ul li a {
            color: var(--muted);
            font-size: .87rem;
            transition: var(--transition);
        }
        .footer-cyber ul li a:hover {
            color: var(--neon-cyan);
        }
        .payment-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 14px;
        }
        .payment-badges span {
            background: rgba(34, 211, 238, 0.08);
            border: 1px solid var(--border-strong);
            color: var(--neon-cyan);
            padding: 5px 10px;
            border-radius: 999px;
            font-size: .75rem;
            font-weight: 600;
        }
        .small { font-size: .82rem !important; }
        .footer-bottom {
            margin-top: 32px;
            padding-top: 16px;
            border-top: 1px solid rgba(255,255,255,0.06);
            color: rgba(148, 163, 184, 0.6);
            font-size: .8rem;
        }

        /* FAB */
        .fab-cyber {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(7, 7, 13, 0.8);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 2px solid transparent;
            background-clip: padding-box;
            position: fixed;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--neon-cyan);
            font-size: 1.3rem;
            box-shadow: 0 0 20px rgba(6, 182, 212, 0.45);
            transition: var(--transition);
            text-decoration: none;
        }
        .fab-cyber::before {
            content: "";
            position: absolute;
            inset: -2px;
            border-radius: 50%;
            background: linear-gradient(135deg, #A3E635, #06B6D4, #F43F5E, #06B6D4);
            z-index: -1;
            background-size: 300% 300%;
            animation: fabGradient 4s ease-in-out infinite;
        }
        @keyframes fabGradient {
            0%, 100% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
        }
        .fab-cyber:hover {
            color: var(--neon-teal);
            transform: scale(1.08);
            box-shadow: 0 0 32px rgba(6, 182, 212, 0.65);
        }
        .fab-cyber:active {
            transform: scale(0.95);
        }
        .fab-cyber .badge-dot {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 10px;
            height: 10px;
            background: var(--neon-pink);
            border-radius: 50%;
            border: 2px solid #fff;
            animation: pulseDot 1.5s ease-in-out infinite;
        }
        @keyframes pulseDot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.3); }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-cyber h1 { font-size: 2.3rem; }
            .display-title { font-size: 1.7rem; }
            .section-pad { padding: 60px 0; }
        }
        @media (max-width: 768px) {
            .hero-cyber {
                padding: 120px 0 60px;
                min-height: auto;
            }
            .hero-cyber h1 { font-size: 1.9rem; }
            .section-pad { padding: 50px 0; }
            .stat-item .stat-number { font-size: 1.6rem; }
            .nav-right-actions {
                margin-left: 0;
                margin-top: 8px;
                width: 100%;
                justify-content: flex-start;
            }
            .navbar-cyber .nav-link {
                padding: 8px 6px !important;
                font-size: .87rem;
            }
            .cta-box {
                padding: 28px 18px;
            }
            .cta-box h2 { font-size: 1.5rem; }
            .fab-cyber {
                width: 48px;
                height: 48px;
                font-size: 1.1rem;
                bottom: 5rem;
            }
        }
        @media (max-width: 520px) {
            .hero-cyber h1 { font-size: 1.6rem; }
            .hero-cyber .lead { font-size: .9rem; }
            .hero-promo-panel { padding: 16px; }
            .hero-promo-panel .promo-total { font-size: 1.5rem; }
            .section-pad { padding: 40px 0; }
            .display-title { font-size: 1.4rem; }
            .btn-neon, .btn-outline-neon {
                padding: 10px 18px;
                font-size: .87rem;
            }
            .navbar-cyber .navbar-brand {
                font-size: .85rem;
            }
            .navbar-cyber .login-btn,
            .navbar-cyber .signup-btn {
                padding: 7px 12px;
                font-size: .78rem;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}