/* roulang page: index */
:root {
            --neon-primary: #22c55e;
            --neon-glow: rgba(34, 197, 94, 0.25);
            --dark-bg: #0a0e17;
            --dark-card: #111827;
            --dark-card-hover: #1a2235;
            --text-primary: #f1f5f9;
            --text-secondary: #94a3b8;
            --text-muted: #64748b;
            --border-glow: rgba(34, 197, 94, 0.15);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            background: var(--dark-bg);
            color: var(--text-primary);
            font-family: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }

        ::selection {
            background: rgba(34, 197, 94, 0.3);
            color: #fff;
        }

        ::-webkit-scrollbar {
            width: 8px;
        }

        ::-webkit-scrollbar-track {
            background: var(--dark-bg);
        }

        ::-webkit-scrollbar-thumb {
            background: #1e293b;
            border-radius: 4px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: #334155;
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        @media (min-width: 768px) {
            .container-custom {
                padding: 0 2rem;
            }
        }

        @media (min-width: 1280px) {
            .container-custom {
                padding: 0 2.5rem;
            }
        }

        /* Glow effects */
        .glow-text {
            text-shadow: 0 0 20px rgba(34, 197, 94, 0.3), 0 0 60px rgba(34, 197, 94, 0.1);
        }

        .glow-border {
            border: 1px solid var(--border-glow);
        }

        .glow-border:hover {
            border-color: rgba(34, 197, 94, 0.35);
            box-shadow: 0 0 20px rgba(34, 197, 94, 0.08);
        }

        .neon-divider {
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--neon-primary), transparent);
            opacity: 0.4;
            width: 80px;
            margin: 0.75rem auto 0;
        }

        .neon-divider-left {
            height: 2px;
            background: linear-gradient(90deg, var(--neon-primary), transparent);
            opacity: 0.5;
            width: 60px;
            margin: 0.5rem 0 0;
        }

        /* Navigation */
        .nav-glass {
            background: rgba(10, 14, 23, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(34, 197, 94, 0.08);
        }

        .nav-link {
            position: relative;
            padding: 0.5rem 0;
            font-weight: 500;
            color: var(--text-secondary);
            transition: color 0.3s ease;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--neon-primary);
            box-shadow: 0 0 10px var(--neon-glow);
            transition: width 0.3s ease;
        }

        .nav-link:hover {
            color: var(--text-primary);
        }

        .nav-link:hover::after {
            width: 100%;
        }

        .nav-link.active {
            color: var(--neon-primary);
        }

        .nav-link.active::after {
            width: 100%;
            background: var(--neon-primary);
            box-shadow: 0 0 15px var(--neon-glow);
        }

        .nav-cta {
            background: linear-gradient(135deg, #16a34a, #22c55e);
            color: #fff;
            font-weight: 600;
            padding: 0.5rem 1.5rem;
            border-radius: 8px;
            transition: all 0.3s ease;
            box-shadow: 0 0 20px rgba(34, 197, 94, 0.2);
        }

        .nav-cta:hover {
            box-shadow: 0 0 35px rgba(34, 197, 94, 0.35);
            transform: translateY(-1px);
        }

        /* Hero */
        .hero-section {
            position: relative;
            overflow: hidden;
            min-height: 85vh;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #0a0e17 0%, #0f172a 50%, #0a0e17 100%);
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(ellipse at 30% 40%, rgba(34, 197, 94, 0.04) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 60%, rgba(34, 197, 94, 0.03) 0%, transparent 50%);
            pointer-events: none;
            animation: heroPulse 8s ease-in-out infinite alternate;
        }

        @keyframes heroPulse {
            0% {
                transform: scale(1) rotate(0deg);
                opacity: 0.6;
            }
            100% {
                transform: scale(1.1) rotate(3deg);
                opacity: 1;
            }
        }

        .hero-grid-lines {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: linear-gradient(rgba(34, 197, 94, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(34, 197, 94, 0.03) 1px, transparent 1px);
            background-size: 60px 60px;
            pointer-events: none;
        }

        .hero-glow-orb {
            position: absolute;
            border-radius: 50%;
            filter: blur(80px);
            pointer-events: none;
        }

        .hero-glow-orb-1 {
            width: 400px;
            height: 400px;
            background: rgba(34, 197, 94, 0.06);
            top: -100px;
            right: -100px;
            animation: orbFloat 12s ease-in-out infinite alternate;
        }

        .hero-glow-orb-2 {
            width: 300px;
            height: 300px;
            background: rgba(34, 197, 94, 0.04);
            bottom: -50px;
            left: -50px;
            animation: orbFloat 10s ease-in-out infinite alternate-reverse;
        }

        @keyframes orbFloat {
            0% {
                transform: translate(0, 0) scale(1);
            }
            100% {
                transform: translate(40px, -30px) scale(1.15);
            }
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.35rem 1rem;
            border: 1px solid rgba(34, 197, 94, 0.2);
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--neon-primary);
            background: rgba(34, 197, 94, 0.06);
            letter-spacing: 0.3px;
        }

        .hero-badge .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--neon-primary);
            box-shadow: 0 0 10px var(--neon-glow);
            animation: dotPulse 2s ease-in-out infinite;
        }

        @keyframes dotPulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(0.85);
            }
        }

        /* Cards */
        .card-neon {
            background: var(--dark-card);
            border: 1px solid rgba(34, 197, 94, 0.06);
            border-radius: 12px;
            padding: 1.5rem;
            transition: all 0.35s ease;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.2);
        }

        .card-neon:hover {
            background: var(--dark-card-hover);
            border-color: rgba(34, 197, 94, 0.18);
            box-shadow: 0 8px 35px rgba(0, 0, 0, 0.35), 0 0 25px rgba(34, 197, 94, 0.05);
            transform: translateY(-4px);
        }

        .card-neon .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(34, 197, 94, 0.08);
            color: var(--neon-primary);
            font-size: 1.25rem;
            transition: all 0.3s ease;
        }

        .card-neon:hover .card-icon {
            background: rgba(34, 197, 94, 0.15);
            box-shadow: 0 0 20px rgba(34, 197, 94, 0.1);
        }

        .card-neon .card-tag {
            display: inline-block;
            padding: 0.15rem 0.7rem;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 500;
            background: rgba(34, 197, 94, 0.08);
            color: var(--neon-primary);
            border: 1px solid rgba(34, 197, 94, 0.12);
        }

        /* Data block */
        .data-block {
            background: linear-gradient(135deg, rgba(34, 197, 94, 0.04), rgba(34, 197, 94, 0.01));
            border: 1px solid rgba(34, 197, 94, 0.08);
            border-radius: 12px;
            padding: 2rem;
            text-align: center;
        }

        .data-block .data-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--neon-primary);
            line-height: 1.2;
            text-shadow: 0 0 30px rgba(34, 197, 94, 0.15);
        }

        .data-block .data-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 0.25rem;
        }

        /* FAQ */
        .faq-item {
            background: var(--dark-card);
            border: 1px solid rgba(34, 197, 94, 0.06);
            border-radius: 10px;
            padding: 1.25rem 1.5rem;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: rgba(34, 197, 94, 0.15);
            background: var(--dark-card-hover);
        }

        .faq-item .faq-question {
            font-weight: 600;
            color: var(--text-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }

        .faq-item .faq-question .icon {
            color: var(--neon-primary);
            font-size: 1.1rem;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item .faq-answer {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-top: 0.75rem;
            padding-top: 0.75rem;
            border-top: 1px solid rgba(34, 197, 94, 0.06);
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, rgba(34, 197, 94, 0.06), rgba(34, 197, 94, 0.02));
            border: 1px solid rgba(34, 197, 94, 0.08);
            border-radius: 16px;
            padding: 3rem 2.5rem;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(34, 197, 94, 0.06), transparent 70%);
            pointer-events: none;
        }

        .cta-btn {
            background: linear-gradient(135deg, #16a34a, #22c55e);
            color: #fff;
            font-weight: 600;
            padding: 0.85rem 2.5rem;
            border-radius: 10px;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 0 25px rgba(34, 197, 94, 0.2);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1rem;
        }

        .cta-btn:hover {
            box-shadow: 0 0 45px rgba(34, 197, 94, 0.35);
            transform: translateY(-2px);
        }

        .cta-btn-outline {
            background: transparent;
            color: var(--neon-primary);
            border: 1px solid rgba(34, 197, 94, 0.3);
            padding: 0.85rem 2.5rem;
            border-radius: 10px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1rem;
        }

        .cta-btn-outline:hover {
            background: rgba(34, 197, 94, 0.06);
            border-color: var(--neon-primary);
            box-shadow: 0 0 25px rgba(34, 197, 94, 0.1);
        }

        /* Footer */
        .footer-neon {
            border-top: 1px solid rgba(34, 197, 94, 0.06);
            background: #080c15;
        }

        .footer-neon a {
            color: var(--text-muted);
            transition: color 0.3s ease;
        }

        .footer-neon a:hover {
            color: var(--neon-primary);
        }

        .footer-neon .footer-heading {
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1rem;
            margin-bottom: 1rem;
        }

        .footer-neon .footer-link {
            display: block;
            padding: 0.3rem 0;
            font-size: 0.9rem;
        }

        /* Post list */
        .post-item {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            padding: 1rem 0;
            border-bottom: 1px solid rgba(34, 197, 94, 0.04);
            transition: all 0.3s ease;
        }

        .post-item:last-child {
            border-bottom: none;
        }

        .post-item .post-number {
            font-size: 1.5rem;
            font-weight: 700;
            color: rgba(34, 197, 94, 0.15);
            min-width: 2rem;
            line-height: 1.2;
            transition: color 0.3s ease;
        }

        .post-item:hover .post-number {
            color: rgba(34, 197, 94, 0.4);
        }

        .post-item .post-title {
            font-weight: 500;
            color: var(--text-primary);
            transition: color 0.3s ease;
            line-height: 1.5;
        }

        .post-item:hover .post-title {
            color: var(--neon-primary);
        }

        .post-item .post-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-top: 0.25rem;
        }

        .post-item .post-meta .tag {
            color: var(--neon-primary);
            background: rgba(34, 197, 94, 0.06);
            padding: 0.1rem 0.5rem;
            border-radius: 3px;
            font-size: 0.7rem;
            border: 1px solid rgba(34, 197, 94, 0.08);
        }

        /* Mobile nav */
        .mobile-menu {
            position: fixed;
            top: 0;
            right: -100%;
            width: 300px;
            height: 100vh;
            background: rgba(10, 14, 23, 0.98);
            backdrop-filter: blur(30px);
            -webkit-backdrop-filter: blur(30px);
            border-left: 1px solid rgba(34, 197, 94, 0.08);
            padding: 6rem 2rem 2rem;
            transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
            z-index: 50;
            overflow-y: auto;
        }

        .mobile-menu.open {
            right: 0;
        }

        .mobile-menu .mobile-link {
            display: block;
            padding: 0.75rem 0;
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 1.1rem;
            border-bottom: 1px solid rgba(34, 197, 94, 0.04);
            transition: color 0.3s ease;
        }

        .mobile-menu .mobile-link:hover,
        .mobile-menu .mobile-link.active {
            color: var(--neon-primary);
        }

        .mobile-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.6);
            z-index: 40;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.4s ease;
        }

        .mobile-overlay.open {
            opacity: 1;
            pointer-events: all;
        }

        .hamburger {
            width: 28px;
            height: 20px;
            position: relative;
            cursor: pointer;
            z-index: 60;
        }

        .hamburger span {
            display: block;
            width: 100%;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            position: absolute;
            left: 0;
            transition: all 0.3s ease;
        }

        .hamburger span:nth-child(1) {
            top: 0;
        }
        .hamburger span:nth-child(2) {
            top: 50%;
            transform: translateY(-50%);
        }
        .hamburger span:nth-child(3) {
            bottom: 0;
        }

        .hamburger.open span:nth-child(1) {
            top: 50%;
            transform: translateY(-50%) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            bottom: 50%;
            transform: translateY(50%) rotate(-45deg);
        }

        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-fade-up {
            animation: fadeInUp 0.6s ease forwards;
        }

        .animate-fade-up-delay-1 {
            animation-delay: 0.1s;
        }
        .animate-fade-up-delay-2 {
            animation-delay: 0.2s;
        }
        .animate-fade-up-delay-3 {
            animation-delay: 0.3s;
        }
        .animate-fade-up-delay-4 {
            animation-delay: 0.4s;
        }

        /* Section spacing */
        .section-padding {
            padding: 5rem 0;
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 3rem 0;
            }
            .hero-section {
                min-height: 70vh;
            }
            .data-block .data-number {
                font-size: 2rem;
            }
            .cta-section {
                padding: 2rem 1.5rem;
            }
            .footer-neon .footer-col {
                margin-bottom: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .section-padding {
                padding: 2.5rem 0;
            }
            .hero-section {
                min-height: 60vh;
            }
            .container-custom {
                padding: 0 1rem;
            }
            .data-block {
                padding: 1.25rem;
            }
            .data-block .data-number {
                font-size: 1.75rem;
            }
            .card-neon {
                padding: 1.25rem;
            }
            .post-item .post-title {
                font-size: 0.95rem;
            }
        }

        /* Form / input */
        .input-neon {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(34, 197, 94, 0.12);
            border-radius: 8px;
            padding: 0.7rem 1rem;
            color: var(--text-primary);
            font-size: 0.95rem;
            transition: all 0.3s ease;
            outline: none;
            width: 100%;
        }

        .input-neon:focus {
            border-color: var(--neon-primary);
            box-shadow: 0 0 15px rgba(34, 197, 94, 0.08);
            background: rgba(255, 255, 255, 0.06);
        }

        .input-neon::placeholder {
            color: var(--text-muted);
        }

        /* List styling */
        .styled-list li {
            padding: 0.4rem 0;
            color: var(--text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
        }

        .styled-list li .list-icon {
            color: var(--neon-primary);
            flex-shrink: 0;
            margin-top: 0.2rem;
        }

        /* Steps */
        .step-item {
            display: flex;
            gap: 1.25rem;
            align-items: flex-start;
            padding: 1.25rem;
            border-radius: 10px;
            transition: all 0.3s ease;
        }

        .step-item:hover {
            background: rgba(34, 197, 94, 0.02);
        }

        .step-item .step-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(34, 197, 94, 0.1);
            border: 1px solid rgba(34, 197, 94, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--neon-primary);
            flex-shrink: 0;
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #10b981;
            --primary-dark: #059669;
            --primary-glow: rgba(16, 185, 129, 0.35);
            --bg-dark: #0b0f1a;
            --bg-card: #111827;
            --bg-card-hover: #1a2332;
            --bg-section: #0d1321;
            --text-white: #f1f5f9;
            --text-light: #94a3b8;
            --text-muted: #64748b;
            --border-subtle: rgba(255, 255, 255, 0.06);
            --border-glow: rgba(16, 185, 129, 0.2);
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
            --shadow-neon: 0 0 20px rgba(16, 185, 129, 0.25);
            --shadow-neon-sm: 0 0 12px rgba(16, 185, 129, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            background-color: var(--bg-dark);
            color: var(--text-white);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }

        /* ===== Container ===== */
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        @media (min-width: 768px) {
            .container-custom {
                padding: 0 2rem;
            }
        }
        @media (min-width: 1024px) {
            .container-custom {
                padding: 0 2.5rem;
            }
        }

        /* ===== Section Spacing ===== */
        .section-padding {
            padding: 4rem 0;
        }
        @media (min-width: 768px) {
            .section-padding {
                padding: 5.5rem 0;
            }
        }
        @media (min-width: 1024px) {
            .section-padding {
                padding: 7rem 0;
            }
        }

        /* ===== Nav Glass ===== */
        .nav-glass {
            background: rgba(11, 15, 26, 0.85);
            backdrop-filter: blur(20px) saturate(1.2);
            -webkit-backdrop-filter: blur(20px) saturate(1.2);
            border-bottom: 1px solid var(--border-subtle);
        }
        .nav-link {
            position: relative;
            color: var(--text-light);
            font-weight: 500;
            padding: 0.375rem 0;
            letter-spacing: 0.3px;
            transition: var(--transition);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            box-shadow: 0 0 10px var(--primary-glow);
            transition: var(--transition);
        }
        .nav-link:hover {
            color: var(--text-white);
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--primary);
        }
        .nav-link.active::after {
            width: 100%;
            background: var(--primary);
            box-shadow: 0 0 14px var(--primary-glow);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem 1.25rem;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 600;
            border-radius: var(--radius-sm);
            box-shadow: 0 0 12px rgba(16, 185, 129, 0.2);
            transition: var(--transition);
        }
        .nav-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 0 24px rgba(16, 185, 129, 0.35);
            color: #fff;
        }

        /* ===== Hamburger ===== */
        .hamburger {
            width: 28px;
            height: 20px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            cursor: pointer;
            padding: 2px 0;
        }
        .hamburger span {
            display: block;
            width: 100%;
            height: 2px;
            background: var(--text-white);
            border-radius: 2px;
            transition: var(--transition);
        }
        .hamburger.open span:nth-child(1) {
            transform: translateY(9px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-9px) rotate(-45deg);
        }

        /* ===== Mobile Menu ===== */
        .mobile-menu {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(11, 15, 26, 0.98);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2rem;
            z-index: 40;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.35s ease;
        }
        .mobile-menu.open {
            opacity: 1;
            pointer-events: all;
        }
        .mobile-menu a {
            font-size: 1.35rem;
            font-weight: 600;
            color: var(--text-light);
            transition: var(--transition);
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--primary);
        }
        .mobile-menu-close {
            position: absolute;
            top: 1.25rem;
            right: 1.5rem;
            font-size: 2rem;
            color: var(--text-white);
            cursor: pointer;
            opacity: 0.7;
            transition: var(--transition);
        }
        .mobile-menu-close:hover {
            opacity: 1;
        }

        /* ===== Hero Inner ===== */
        .hero-inner {
            position: relative;
            padding: 8rem 0 4rem;
            background: linear-gradient(160deg, #0b0f1a 0%, #0d1a2a 50%, #0b0f1a 100%);
            overflow: hidden;
        }
        .hero-inner::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(16, 185, 129, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-inner::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -15%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(16, 185, 129, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-inner .container-custom {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-bottom: 1.5rem;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            opacity: 0.5;
        }
        .breadcrumb .current {
            color: var(--text-light);
        }

        /* ===== Section Titles ===== */
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--primary);
            background: rgba(16, 185, 129, 0.08);
            padding: 0.3rem 1rem;
            border-radius: 50px;
            border: 1px solid rgba(16, 185, 129, 0.15);
            margin-bottom: 1rem;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-white);
            margin-bottom: 1rem;
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 2.5rem;
            }
        }
        .section-sub {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 640px;
            line-height: 1.7;
        }

        /* ===== Cards ===== */
        .card-base {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            transition: var(--transition);
        }
        .card-base:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glow);
            box-shadow: var(--shadow-card), 0 0 16px rgba(16, 185, 129, 0.06);
            transform: translateY(-3px);
        }
        .card-image-wrap {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 16/9;
            background: #1e293b;
        }
        .card-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .card-base:hover .card-image-wrap img {
            transform: scale(1.04);
        }
        .card-badge {
            position: absolute;
            top: 0.75rem;
            left: 0.75rem;
            padding: 0.2rem 0.7rem;
            font-size: 0.7rem;
            font-weight: 600;
            border-radius: 50px;
            background: rgba(16, 185, 129, 0.85);
            color: #fff;
            backdrop-filter: blur(4px);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        }
        .card-tag {
            display: inline-block;
            padding: 0.15rem 0.6rem;
            font-size: 0.7rem;
            font-weight: 500;
            border-radius: 4px;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-light);
            border: 1px solid var(--border-subtle);
            transition: var(--transition);
        }
        .card-tag:hover {
            background: rgba(16, 185, 129, 0.1);
            color: var(--primary);
            border-color: rgba(16, 185, 129, 0.2);
        }

        /* ===== Button ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 1.6rem;
            font-weight: 600;
            font-size: 0.9rem;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 0 12px rgba(16, 185, 129, 0.15);
            transition: var(--transition);
            border: none;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(16, 185, 129, 0.3);
            color: #fff;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 1.6rem;
            font-weight: 600;
            font-size: 0.9rem;
            border-radius: var(--radius-sm);
            background: transparent;
            color: var(--text-light);
            border: 1px solid var(--border-subtle);
            transition: var(--transition);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(16, 185, 129, 0.05);
        }

        /* ===== Guide List ===== */
        .guide-item {
            padding: 1.25rem 0;
            border-bottom: 1px solid var(--border-subtle);
            transition: var(--transition);
        }
        .guide-item:last-child {
            border-bottom: none;
        }
        .guide-item:hover {
            padding-left: 0.5rem;
        }
        .guide-item .guide-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: rgba(16, 185, 129, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.15rem;
            flex-shrink: 0;
            border: 1px solid rgba(16, 185, 129, 0.1);
        }
        .guide-item h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 0.2rem;
        }
        .guide-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1.25rem 1.5rem;
            transition: var(--transition);
            cursor: pointer;
        }
        .faq-item:hover {
            border-color: var(--border-glow);
            background: var(--bg-card-hover);
        }
        .faq-item .faq-q {
            font-weight: 600;
            color: var(--text-white);
            font-size: 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }
        .faq-item .faq-q i {
            color: var(--primary);
            transition: transform 0.3s ease;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
        }
        .faq-item .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            color: var(--text-light);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-a {
            max-height: 300px;
            padding-top: 0.75rem;
        }

        /* ===== CTA ===== */
        .cta-neon {
            background: linear-gradient(145deg, #0d1a2a, #0b0f1a);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-xl);
            padding: 3rem 2rem;
            text-align: center;
            box-shadow: 0 0 40px rgba(16, 185, 129, 0.06);
            position: relative;
            overflow: hidden;
        }
        .cta-neon::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -30%;
            width: 800px;
            height: 800px;
            background: radial-gradient(circle, rgba(16, 185, 129, 0.06) 0%, transparent 60%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-neon h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.75rem;
        }
        .cta-neon p {
            color: var(--text-light);
            max-width: 560px;
            margin: 0 auto 1.75rem;
            font-size: 1rem;
        }
        @media (min-width: 768px) {
            .cta-neon {
                padding: 4rem 3rem;
            }
            .cta-neon h2 {
                font-size: 2.2rem;
            }
        }

        /* ===== Footer ===== */
        .footer-neon {
            border-top: 1px solid var(--border-subtle);
            background: #090d17;
        }
        .footer-heading {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-white);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 1rem;
        }
        .footer-link {
            display: block;
            font-size: 0.88rem;
            color: var(--text-muted);
            padding: 0.3rem 0;
            transition: var(--transition);
        }
        .footer-link:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-col {
            margin-bottom: 1.5rem;
        }

        /* ===== Animations ===== */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .anim-fade-up {
            animation: fadeUp 0.6s ease forwards;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .hero-inner {
                padding: 7rem 0 3rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .cta-neon h2 {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 767px) {
            .hero-inner {
                padding: 6rem 0 2.5rem;
            }
            .section-title {
                font-size: 1.55rem;
            }
            .section-padding {
                padding: 3rem 0;
            }
            .card-base {
                padding: 1.15rem;
            }
            .cta-neon {
                padding: 2rem 1.25rem;
            }
            .cta-neon h2 {
                font-size: 1.3rem;
            }
            .guide-item .guide-icon {
                width: 38px;
                height: 38px;
                font-size: 1rem;
            }
            .breadcrumb {
                font-size: 0.78rem;
            }
        }
        @media (max-width: 520px) {
            .container-custom {
                padding: 0 1rem;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .hero-inner {
                padding: 5.5rem 0 2rem;
            }
            .btn-primary,
            .btn-outline {
                padding: 0.6rem 1.2rem;
                font-size: 0.82rem;
            }
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-dark);
        }
        ::-webkit-scrollbar-thumb {
            background: #2d3a4a;
            border-radius: 3px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #3d4a5a;
        }

        /* ===== Focus Visible ===== */
        :focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

        /* ===== Tag Cloud ===== */
        .tag-cloud a {
            display: inline-block;
            padding: 0.3rem 0.9rem;
            font-size: 0.8rem;
            font-weight: 500;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.04);
            color: var(--text-light);
            border: 1px solid var(--border-subtle);
            margin: 0.25rem 0.35rem;
            transition: var(--transition);
        }
        .tag-cloud a:hover {
            background: rgba(16, 185, 129, 0.1);
            color: var(--primary);
            border-color: rgba(16, 185, 129, 0.2);
        }

        /* ===== Stat Block ===== */
        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            letter-spacing: -0.5px;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 0.2rem;
        }
        @media (min-width: 768px) {
            .stat-number {
                font-size: 2.8rem;
            }
        }

        /* ===== Divider ===== */
        .divider-glow {
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(16, 185, 129, 0.2), transparent);
            margin: 2.5rem 0;
        }

/* roulang page: article */
:root {
            --neon-green: #22d65e;
            --neon-green-light: #4ade80;
            --neon-green-dark: #16a34a;
            --bg-dark: #0b0f1a;
            --bg-card: #111827;
            --bg-card-hover: #1a2236;
            --text-primary: #f1f5f9;
            --text-secondary: #94a3b8;
            --text-muted: #64748b;
            --border-color: #1e293b;
            --border-hover: #334155;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --shadow-neon: 0 0 20px rgba(34, 214, 94, 0.15), 0 0 60px rgba(34, 214, 94, 0.05);
            --shadow-neon-sm: 0 0 12px rgba(34, 214, 94, 0.12);
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

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

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: transparent;
            color: inherit;
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }

        .section-padding {
            padding: 4.5rem 0;
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 2.8rem 0;
            }
            .container-custom {
                padding: 0 1rem;
            }
        }

        /* ===== Navbar ===== */
        .nav-glass {
            background: rgba(11, 15, 26, 0.85);
            backdrop-filter: blur(18px) saturate(1.4);
            border-bottom: 1px solid rgba(34, 214, 94, 0.08);
            transition: background 0.3s ease, border-color 0.3s ease;
        }

        .nav-glass:hover {
            border-bottom-color: rgba(34, 214, 94, 0.18);
        }

        .nav-link {
            position: relative;
            color: var(--text-secondary);
            font-weight: 500;
            padding: 0.5rem 0;
            transition: color 0.25s ease;
            letter-spacing: 0.02em;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--neon-green);
            border-radius: 2px;
            box-shadow: 0 0 10px rgba(34, 214, 94, 0.4);
            transition: width 0.3s ease;
        }

        .nav-link:hover {
            color: #fff;
        }

        .nav-link:hover::after {
            width: 100%;
        }

        .nav-link.active {
            color: var(--neon-green);
        }

        .nav-link.active::after {
            width: 100%;
            box-shadow: 0 0 14px rgba(34, 214, 94, 0.5);
        }

        .nav-cta {
            background: linear-gradient(135deg, var(--neon-green-dark), var(--neon-green));
            color: #0b0f1a;
            font-weight: 600;
            padding: 0.55rem 1.5rem;
            border-radius: 9999px;
            transition: all 0.3s ease;
            box-shadow: 0 0 16px rgba(34, 214, 94, 0.2);
            letter-spacing: 0.02em;
        }

        .nav-cta:hover {
            transform: translateY(-2px) scale(1.03);
            box-shadow: 0 0 30px rgba(34, 214, 94, 0.35);
            color: #0b0f1a;
        }

        .nav-cta:active {
            transform: scale(0.97);
        }

        .hamburger {
            width: 28px;
            height: 20px;
            position: relative;
            cursor: pointer;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .hamburger span {
            display: block;
            height: 2.5px;
            width: 100%;
            background: var(--text-primary);
            border-radius: 4px;
            transition: all 0.3s ease;
        }

        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(6px, 6px);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }

        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(6px, -6px);
        }

        /* Mobile Menu */
        .mobile-menu {
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(11, 15, 26, 0.98);
            backdrop-filter: blur(20px);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            padding: 2.5rem 1.5rem;
            gap: 1.25rem;
            transform: translateY(-12px);
            opacity: 0;
            pointer-events: none;
            transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            z-index: 40;
            border-top: 1px solid rgba(34, 214, 94, 0.1);
        }

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

        .mobile-menu a {
            font-size: 1.15rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 0.6rem 0;
            transition: color 0.25s ease;
            letter-spacing: 0.03em;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--neon-green);
        }

        .mobile-menu .nav-cta {
            margin-top: 0.75rem;
            font-size: 1rem;
            padding: 0.7rem 2.2rem;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            padding: 1.25rem 0 0.5rem;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color 0.25s ease;
        }

        .breadcrumb a:hover {
            color: var(--neon-green);
        }

        .breadcrumb .sep {
            color: var(--text-muted);
            font-size: 0.75rem;
        }

        .breadcrumb .current {
            color: var(--neon-green);
            font-weight: 500;
        }

        /* ===== Article ===== */
        .article-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2rem 2.5rem;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .article-card:hover {
            border-color: rgba(34, 214, 94, 0.15);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
        }

        .article-title {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.3;
            color: #fff;
            margin-bottom: 0.75rem;
            letter-spacing: -0.01em;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem 1.5rem;
            color: var(--text-muted);
            font-size: 0.88rem;
            padding-bottom: 1.25rem;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 1.75rem;
        }

        .article-meta .badge {
            background: rgba(34, 214, 94, 0.12);
            color: var(--neon-green);
            font-weight: 600;
            font-size: 0.78rem;
            padding: 0.2rem 0.85rem;
            border-radius: 9999px;
            border: 1px solid rgba(34, 214, 94, 0.15);
        }

        .article-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .article-meta .meta-item i {
            font-size: 0.82rem;
            opacity: 0.7;
        }

        .article-body {
            font-size: 1.05rem;
            line-height: 1.85;
            color: rgba(241, 245, 249, 0.92);
        }

        .article-body p {
            margin-bottom: 1.25rem;
        }

        .article-body h2,
        .article-body h3,
        .article-body h4 {
            color: #fff;
            font-weight: 600;
            margin-top: 2rem;
            margin-bottom: 0.75rem;
            letter-spacing: -0.01em;
        }

        .article-body h2 {
            font-size: 1.5rem;
        }
        .article-body h3 {
            font-size: 1.25rem;
        }

        .article-body ul,
        .article-body ol {
            margin: 1rem 0 1.25rem 1.5rem;
        }

        .article-body li {
            margin-bottom: 0.4rem;
        }

        .article-body a {
            color: var(--neon-green);
            text-decoration: underline;
            text-underline-offset: 3px;
            transition: opacity 0.25s ease;
        }

        .article-body a:hover {
            opacity: 0.8;
        }

        .article-body blockquote {
            border-left: 3px solid var(--neon-green);
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            background: rgba(34, 214, 94, 0.04);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-body img {
            margin: 1.5rem 0;
            border-radius: var(--radius-lg);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }

        .article-body code {
            background: rgba(34, 214, 94, 0.08);
            padding: 0.15rem 0.5rem;
            border-radius: 0.35rem;
            font-size: 0.92em;
            color: var(--neon-green-light);
        }

        .article-body pre {
            background: rgba(0, 0, 0, 0.4);
            padding: 1.25rem 1.5rem;
            border-radius: var(--radius-md);
            overflow-x: auto;
            border: 1px solid var(--border-color);
            margin: 1.5rem 0;
            font-size: 0.92rem;
        }

        /* ===== Tags ===== */
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-color);
        }

        .tag-item {
            background: rgba(34, 214, 94, 0.06);
            color: var(--text-secondary);
            font-size: 0.8rem;
            padding: 0.25rem 1rem;
            border-radius: 9999px;
            border: 1px solid var(--border-color);
            transition: all 0.25s ease;
        }

        .tag-item:hover {
            background: rgba(34, 214, 94, 0.12);
            color: var(--neon-green);
            border-color: rgba(34, 214, 94, 0.2);
        }

        /* ===== Post Nav ===== */
        .post-nav {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.25rem;
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-color);
        }

        .post-nav a {
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
            background: var(--bg-card);
            padding: 1rem 1.5rem;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }

        .post-nav a:hover {
            border-color: rgba(34, 214, 94, 0.2);
            background: var(--bg-card-hover);
            transform: translateY(-2px);
        }

        .post-nav .label {
            font-size: 0.75rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .post-nav .title {
            font-size: 0.95rem;
            color: var(--text-primary);
            font-weight: 500;
            line-height: 1.4;
        }

        .post-nav .title:hover {
            color: var(--neon-green);
        }

        .post-nav .next {
            text-align: right;
        }

        /* ===== Sidebar ===== */
        .sidebar-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.5rem 1.75rem;
            transition: border-color 0.3s ease;
        }

        .sidebar-card:hover {
            border-color: rgba(34, 214, 94, 0.12);
        }

        .sidebar-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 1rem;
            padding-bottom: 0.6rem;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .sidebar-card h3 i {
            color: var(--neon-green);
            font-size: 0.9rem;
        }

        .sidebar-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .sidebar-list a {
            display: flex;
            gap: 0.75rem;
            align-items: flex-start;
            padding: 0.5rem 0;
            border-bottom: 1px solid rgba(30, 41, 59, 0.5);
            transition: all 0.25s ease;
        }

        .sidebar-list a:last-child {
            border-bottom: none;
        }

        .sidebar-list a:hover {
            padding-left: 0.35rem;
        }

        .sidebar-list a:hover .s-title {
            color: var(--neon-green);
        }

        .sidebar-list .s-num {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--neon-green);
            background: rgba(34, 214, 94, 0.08);
            width: 1.6rem;
            height: 1.6rem;
            border-radius: 0.4rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .sidebar-list .s-title {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.4;
            transition: color 0.25s ease;
        }

        .sidebar-list .s-meta {
            font-size: 0.72rem;
            color: var(--text-muted);
            margin-top: 0.15rem;
        }

        .sidebar-cta {
            background: linear-gradient(135deg, rgba(34, 214, 94, 0.06), rgba(34, 214, 94, 0.02));
            border: 1px solid rgba(34, 214, 94, 0.12);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            text-align: center;
        }

        .sidebar-cta h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 0.5rem;
        }

        .sidebar-cta p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
        }

        .sidebar-cta .btn-cta {
            display: inline-block;
            background: linear-gradient(135deg, var(--neon-green-dark), var(--neon-green));
            color: #0b0f1a;
            font-weight: 600;
            padding: 0.55rem 2rem;
            border-radius: 9999px;
            font-size: 0.88rem;
            transition: all 0.3s ease;
            box-shadow: 0 0 16px rgba(34, 214, 94, 0.15);
        }

        .sidebar-cta .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(34, 214, 94, 0.3);
            color: #0b0f1a;
        }

        /* ===== Related Section ===== */
        .related-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.25rem 1.5rem;
            transition: all 0.3s ease;
        }

        .related-card:hover {
            border-color: rgba(34, 214, 94, 0.15);
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
        }

        .related-card .r-cat {
            font-size: 0.7rem;
            color: var(--neon-green);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 0.3rem;
        }

        .related-card .r-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            line-height: 1.4;
            transition: color 0.25s ease;
        }

        .related-card:hover .r-title {
            color: var(--neon-green);
        }

        .related-card .r-meta {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 0.4rem;
        }

        /* ===== CTA Section ===== */
        .cta-neon {
            background: linear-gradient(135deg, rgba(34, 214, 94, 0.04), rgba(34, 214, 94, 0.01));
            border: 1px solid rgba(34, 214, 94, 0.1);
            border-radius: var(--radius-xl);
            padding: 3rem 2.5rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-neon::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at center, rgba(34, 214, 94, 0.02) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-neon h2 {
            font-size: 1.75rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.75rem;
        }

        .cta-neon p {
            color: var(--text-secondary);
            max-width: 520px;
            margin: 0 auto 1.5rem;
            font-size: 1rem;
        }

        .cta-neon .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
        }

        .cta-neon .btn-primary {
            background: linear-gradient(135deg, var(--neon-green-dark), var(--neon-green));
            color: #0b0f1a;
            font-weight: 600;
            padding: 0.7rem 2.2rem;
            border-radius: 9999px;
            transition: all 0.3s ease;
            box-shadow: 0 0 20px rgba(34, 214, 94, 0.2);
        }

        .cta-neon .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 35px rgba(34, 214, 94, 0.35);
            color: #0b0f1a;
        }

        .cta-neon .btn-secondary {
            color: var(--text-secondary);
            font-weight: 500;
            padding: 0.7rem 2rem;
            border-radius: 9999px;
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }

        .cta-neon .btn-secondary:hover {
            border-color: var(--neon-green);
            color: var(--neon-green);
            background: rgba(34, 214, 94, 0.04);
        }

        /* ===== Footer ===== */
        .footer-neon {
            background: rgba(11, 15, 26, 0.95);
            border-top: 1px solid rgba(34, 214, 94, 0.06);
        }

        .footer-heading {
            font-size: 0.85rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 1rem;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        .footer-link {
            display: block;
            font-size: 0.85rem;
            color: var(--text-muted);
            padding: 0.3rem 0;
            transition: color 0.25s ease;
        }

        .footer-link:hover {
            color: var(--neon-green);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 1.5rem;
            margin-top: 2rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
            transition: color 0.25s ease;
        }

        .footer-bottom a:hover {
            color: var(--neon-green);
        }

        /* ===== Utility ===== */
        .text-neon {
            color: var(--neon-green);
        }

        .border-neon {
            border-color: rgba(34, 214, 94, 0.15);
        }

        .glow-sm {
            box-shadow: 0 0 12px rgba(34, 214, 94, 0.08);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-title {
                font-size: 1.7rem;
            }
            .article-card {
                padding: 1.5rem 1.75rem;
            }
            .cta-neon {
                padding: 2.5rem 1.75rem;
            }
            .cta-neon h2 {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 768px) {
            .article-title {
                font-size: 1.4rem;
            }
            .article-card {
                padding: 1.25rem 1.25rem;
            }
            .article-meta {
                gap: 0.6rem 1rem;
                font-size: 0.8rem;
            }
            .post-nav {
                grid-template-columns: 1fr;
                gap: 0.75rem;
            }
            .post-nav .next {
                text-align: left;
            }
            .cta-neon {
                padding: 2rem 1.25rem;
            }
            .cta-neon h2 {
                font-size: 1.2rem;
            }
            .cta-neon .btn-group {
                flex-direction: column;
                align-items: center;
            }
            .sidebar-card {
                padding: 1.25rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .article-title {
                font-size: 1.2rem;
            }
            .article-card {
                padding: 1rem 1rem;
            }
            .article-body {
                font-size: 0.95rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
            .related-card .r-title {
                font-size: 0.85rem;
            }
            .sidebar-list .s-title {
                font-size: 0.82rem;
            }
        }

        /* Skeleton / Not Found */
        .not-found-box {
            text-align: center;
            padding: 4rem 2rem;
        }

        .not-found-box .nf-icon {
            font-size: 3rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
        }

        .not-found-box h2 {
            font-size: 1.5rem;
            color: #fff;
            margin-bottom: 0.5rem;
        }

        .not-found-box p {
            color: var(--text-muted);
            margin-bottom: 1.5rem;
        }

        .not-found-box .btn-home {
            display: inline-block;
            background: linear-gradient(135deg, var(--neon-green-dark), var(--neon-green));
            color: #0b0f1a;
            font-weight: 600;
            padding: 0.7rem 2.2rem;
            border-radius: 9999px;
            transition: all 0.3s ease;
            box-shadow: 0 0 16px rgba(34, 214, 94, 0.15);
        }

        .not-found-box .btn-home:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(34, 214, 94, 0.3);
            color: #0b0f1a;
        }