/* roulang page: index */
:root {
            --bg-primary: #0F0C20;
            --bg-secondary: #0B1A30;
            --bg-card: #15122E;
            --bg-card-hover: #1E1840;
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --accent-pink: #FF007F;
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --text-muted: #6E7480;
            --border-neon: rgba(0, 240, 255, 0.35);
            --border-lime: rgba(204, 255, 0, 0.35);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.15);
            --shadow-lime: 0 0 15px rgba(204, 255, 0, 0.15);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 48px;
            --spacing-xl: 72px;
            --spacing-xxl: 100px;
            --font-sans: 'Be Vietnam Pro', 'Segoe UI', 'Roboto', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-base: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.65;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image:
                linear-gradient(rgba(15, 12, 32, 0.92), rgba(15, 12, 32, 0.92)),
                radial-gradient(ellipse at 20% 20%, rgba(0, 240, 255, 0.06), transparent 50%),
                radial-gradient(ellipse at 80% 80%, rgba(204, 255, 0, 0.04), transparent 50%);
            z-index: -1;
            pointer-events: none;
        }

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

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

        a:hover,
        a:focus-visible {
            color: var(--accent-lime);
            text-decoration: none;
        }

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

        .container {
            max-width: 1200px;
            padding-left: var(--spacing-sm);
            padding-right: var(--spacing-sm);
        }

        .section-spacing {
            padding: var(--spacing-xl) 0;
        }

        .section-spacing-sm {
            padding: var(--spacing-lg) 0;
        }

        .section-title {
            font-size: clamp(1.75rem, 3.5vw, 2.5rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: var(--spacing-xs);
            color: var(--text-primary);
            line-height: 1.25;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: var(--spacing-lg);
            max-width: 680px;
            line-height: 1.6;
        }

        .text-gradient {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .neon-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 240, 255, 0.25);
            backdrop-filter: blur(4px);
        }

        /* ============ NAVBAR ============ */
        .navbar-custom {
            background: rgba(15, 12, 32, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
            padding: var(--spacing-sm) 0;
            transition: all var(--transition-base);
        }

        .navbar-custom.scrolled {
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
            background: rgba(15, 12, 32, 0.98);
        }

        .navbar-brand-custom {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 8px;
            line-height: 1.2;
        }

        .navbar-brand-custom .brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0F0C20;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .navbar-custom .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 16px;
            border-radius: 8px;
            transition: all var(--transition-fast);
            position: relative;
        }

        .navbar-custom .nav-link:hover,
        .navbar-custom .nav-link.active {
            color: var(--text-primary);
            background: rgba(0, 240, 255, 0.08);
        }

        .navbar-custom .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-lime));
            border-radius: 2px;
        }

        .btn-login-text {
            color: var(--text-primary);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 8px 12px;
            border: none;
            background: transparent;
            transition: color var(--transition-fast);
        }

        .btn-login-text:hover {
            color: var(--accent-cyan);
        }

        .btn-signup-solid {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            color: #0F0C20;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 10px 22px;
            border-radius: 50px;
            border: none;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 15px rgba(0, 240, 255, 0.25);
        }

        .btn-signup-solid:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(0, 240, 255, 0.4);
            color: #0F0C20;
        }

        .navbar-toggler-custom {
            border: 1px solid rgba(0, 240, 255, 0.3);
            padding: 8px 12px;
            border-radius: 8px;
            color: var(--text-primary);
            background: transparent;
        }

        .navbar-toggler-custom:focus {
            box-shadow: none;
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

        @media (max-width: 991px) {
            .navbar-collapse-custom {
                margin-top: var(--spacing-sm);
                padding-top: var(--spacing-sm);
                border-top: 1px solid rgba(0, 240, 255, 0.1);
            }
            .navbar-custom .nav-link {
                padding: 10px 0;
                font-size: 1rem;
            }
            .navbar-custom .nav-link.active::after {
                display: none;
            }
            .navbar-actions-mobile {
                display: flex;
                gap: 10px;
                margin-top: var(--spacing-sm);
                padding-top: var(--spacing-sm);
                border-top: 1px solid rgba(0, 240, 255, 0.1);
            }
        }

        @media (min-width: 992px) {
            .navbar-actions-desktop {
                display: flex;
                align-items: center;
                gap: 8px;
            }
        }

        /* ============ HERO ============ */
        .hero-section {
            position: relative;
            padding: var(--spacing-xl) 0 var(--spacing-lg);
            overflow: hidden;
            background: linear-gradient(180deg, rgba(15, 12, 32, 0.6) 0%, rgba(11, 26, 48, 0.8) 100%);
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 0;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 1;
        }

        .hero-badge {
            margin-bottom: var(--spacing-sm);
        }

        .hero-title {
            font-size: clamp(2rem, 5vw, 3.5rem);
            font-weight: 900;
            letter-spacing: -0.03em;
            line-height: 1.15;
            margin-bottom: var(--spacing-sm);
            color: var(--text-primary);
        }

        .hero-description {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 620px;
            margin-bottom: var(--spacing-md);
            line-height: 1.7;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: var(--spacing-lg);
        }

        .btn-primary-custom {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            color: #0F0C20;
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 28px;
            border-radius: 50px;
            border: none;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 20px rgba(0, 240, 255, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary-custom:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0, 240, 255, 0.5);
            color: #0F0C20;
        }

        .btn-outline-custom {
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1rem;
            padding: 14px 28px;
            border-radius: 50px;
            border: 2px solid var(--accent-cyan);
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline-custom:hover {
            background: rgba(0, 240, 255, 0.1);
            border-color: var(--accent-lime);
            color: var(--accent-lime);
            transform: translateY(-2px);
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-lg);
            padding-top: var(--spacing-sm);
            border-top: 1px solid rgba(0, 240, 255, 0.15);
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-stat-value {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent-cyan);
            letter-spacing: -0.02em;
        }

        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ============ GROUP BUY HERO PANEL ============ */
        .group-buy-panel {
            position: relative;
            z-index: 1;
            background: rgba(21, 18, 46, 0.85);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            box-shadow: var(--shadow-neon);
        }

        .group-buy-panel .panel-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-xs);
        }

        .group-buy-panel .panel-progress {
            height: 8px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 50px;
            overflow: hidden;
            margin: var(--spacing-sm) 0;
        }

        .group-buy-panel .panel-progress-bar {
            height: 100%;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-lime));
            border-radius: 50px;
            width: 72%;
            transition: width var(--transition-slow);
        }

        .group-buy-panel .panel-info {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: var(--spacing-sm);
        }

        .group-buy-panel .panel-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        /* ============ FEATURE SECTION ============ */
        .feature-section {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(0, 240, 255, 0.08);
            border-bottom: 1px solid rgba(0, 240, 255, 0.08);
        }

        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: var(--spacing-md);
            margin-top: var(--spacing-lg);
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid rgba(0, 240, 255, 0.12);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-lime));
            opacity: 0;
            transition: opacity var(--transition-fast);
        }

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

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(0, 240, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.4rem;
            margin-bottom: var(--spacing-sm);
        }

        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-xs);
            letter-spacing: -0.01em;
        }

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

        /* ============ TESTIMONIAL SECTION ============ */
        .testimonial-section {
            background: var(--bg-primary);
        }

        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--spacing-md);
            margin-top: var(--spacing-lg);
        }

        .testimonial-card {
            background: var(--bg-card);
            border: 1px solid rgba(204, 255, 0, 0.12);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            transition: all var(--transition-base);
        }

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

        .testimonial-rating {
            color: var(--accent-lime);
            font-size: 0.9rem;
            margin-bottom: var(--spacing-xs);
        }

        .testimonial-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: var(--spacing-sm);
            font-style: italic;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .testimonial-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0F0C20;
            font-weight: 700;
            font-size: 0.9rem;
        }

        .testimonial-name {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-primary);
        }

        .testimonial-role {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ============ CMS NEWS SECTION ============ */
        .news-section {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(0, 240, 255, 0.08);
            border-bottom: 1px solid rgba(0, 240, 255, 0.08);
        }

        .news-layout {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: var(--spacing-lg);
            margin-top: var(--spacing-lg);
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .news-list-item {
            background: var(--bg-card);
            border: 1px solid rgba(0, 240, 255, 0.1);
            border-radius: var(--radius-sm);
            padding: var(--spacing-sm) var(--spacing-md);
            transition: all var(--transition-fast);
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }

        .news-list-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-neon);
            transform: translateX(4px);
        }

        .news-list-item .news-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-cyan);
            flex-shrink: 0;
        }

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

        .news-list-item .news-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            display: block;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

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

        .news-list-item .news-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .news-sidebar {
            background: var(--bg-card);
            border: 1px solid rgba(204, 255, 0, 0.12);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
        }

        .news-sidebar-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
            padding-bottom: var(--spacing-xs);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .news-sidebar-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            transition: all var(--transition-fast);
        }

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

        .news-sidebar-item:hover {
            transform: translateX(4px);
        }

        .news-sidebar-item .sidebar-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: rgba(0, 240, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 0.8rem;
            flex-shrink: 0;
        }

        .news-sidebar-item .sidebar-text {
            font-size: 0.88rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ============ FESTIVAL CAMPAIGN ============ */
        .festival-section {
            background: linear-gradient(135deg, rgba(255, 0, 127, 0.08), rgba(204, 255, 0, 0.05));
            border-top: 1px solid rgba(255, 0, 127, 0.15);
            border-bottom: 1px solid rgba(255, 0, 127, 0.15);
        }

        .festival-banner {
            background: rgba(21, 18, 46, 0.7);
            border: 1px solid rgba(255, 0, 127, 0.2);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            display: grid;
            grid-template-columns: 1fr auto;
            gap: var(--spacing-md);
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .festival-banner::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 0, 127, 0.15), transparent 70%);
            pointer-events: none;
        }

        .festival-content h3 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: var(--spacing-xs);
        }

        .festival-content p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-bottom: var(--spacing-sm);
            max-width: 500px;
        }

        .festival-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .festival-tag {
            background: rgba(255, 0, 127, 0.15);
            color: var(--accent-pink);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 50px;
            border: 1px solid rgba(255, 0, 127, 0.3);
        }

        .festival-cta {
            text-align: right;
            flex-shrink: 0;
        }

        /* ============ VERTICAL CONTENT ============ */
        .vertical-section {
            background: var(--bg-primary);
        }

        .vertical-scroll {
            display: flex;
            gap: var(--spacing-md);
            overflow-x: auto;
            padding-bottom: var(--spacing-sm);
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            margin-top: var(--spacing-lg);
        }

        .vertical-scroll::-webkit-scrollbar {
            height: 4px;
        }

        .vertical-scroll::-webkit-scrollbar-track {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50px;
        }

        .vertical-scroll::-webkit-scrollbar-thumb {
            background: var(--accent-cyan);
            border-radius: 50px;
        }

        .vertical-card {
            flex: 0 0 240px;
            scroll-snap-align: start;
            background: var(--bg-card);
            border: 1px solid rgba(0, 240, 255, 0.12);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
        }

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

        .vertical-card-img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            background: var(--bg-card-hover);
        }

        .vertical-card-body {
            padding: var(--spacing-sm);
        }

        .vertical-card-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .vertical-card-desc {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: var(--spacing-xs);
        }

        .vertical-card-cta {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-cyan);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition-fast);
        }

        .vertical-card-cta:hover {
            color: var(--accent-lime);
            gap: 8px;
        }

        /* ============ FAQ SECTION ============ */
        .faq-section {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(0, 240, 255, 0.08);
            border-bottom: 1px solid rgba(0, 240, 255, 0.08);
        }

        .accordion-custom .accordion-item {
            background: var(--bg-card);
            border: 1px solid rgba(0, 240, 255, 0.1);
            border-radius: var(--radius-sm) !important;
            margin-bottom: var(--spacing-xs);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

        .accordion-custom .accordion-button {
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 0.95rem;
            padding: var(--spacing-sm) var(--spacing-md);
            border: none;
            box-shadow: none;
            transition: all var(--transition-fast);
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            background: rgba(0, 240, 255, 0.06);
            color: var(--accent-cyan);
        }

        .accordion-custom .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--accent-cyan);
            outline-offset: -2px;
        }

        .accordion-custom .accordion-button::after {
            filter: invert(1);
            opacity: 0.6;
        }

        .accordion-custom .accordion-body {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.08), rgba(204, 255, 0, 0.06));
            border-top: 1px solid rgba(0, 240, 255, 0.15);
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
            text-align: center;
        }

        .cta-content {
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: clamp(1.75rem, 3.5vw, 2.25rem);
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
            letter-spacing: -0.02em;
        }

        .cta-content p {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: var(--spacing-md);
        }

        /* ============ FOOTER ============ */
        .footer-section {
            background: #08060F;
            border-top: 1px solid rgba(0, 240, 255, 0.1);
            padding: var(--spacing-lg) 0 var(--spacing-sm);
        }

        .footer-brand {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: var(--spacing-xs);
        }

        .footer-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            max-width: 360px;
            line-height: 1.6;
            margin-bottom: var(--spacing-sm);
        }

        .footer-links-title {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-xs);
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .footer-links a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            margin-top: var(--spacing-lg);
            padding-top: var(--spacing-sm);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            text-align: center;
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        /* ============ FAB ============ */
        .fab-custom {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 1050;
            width: 52px;
            height: 52px;
            border-radius: 50px;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid;
            border-image: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime)) 1;
            color: var(--accent-cyan);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            transition: all var(--transition-fast);
            opacity: 0.6;
            cursor: pointer;
            text-decoration: none;
        }

        .fab-custom:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.7);
            color: var(--accent-lime);
        }

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

        .fab-custom .fab-notification {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent-pink);
            border: 2px solid #0F0C20;
            animation: fab-blink 2s infinite;
        }

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

        /* ============ RESPONSIVE ============ */
        @media (max-width: 991px) {
            .news-layout {
                grid-template-columns: 1fr;
            }
            .festival-banner {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .festival-content p {
                max-width: 100%;
            }
            .festival-cta {
                text-align: center;
            }
            .hero-title {
                font-size: clamp(1.75rem, 6vw, 2.5rem);
            }
        }

        @media (max-width: 767px) {
            .section-spacing {
                padding: var(--spacing-lg) 0;
            }
            .section-spacing-sm {
                padding: var(--spacing-md) 0;
            }
            .hero-section {
                padding: var(--spacing-lg) 0 var(--spacing-md);
            }
            .hero-stats {
                gap: var(--spacing-md);
            }
            .hero-stat-value {
                font-size: 1.3rem;
            }
            .feature-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-sm);
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-sm);
            }
            .group-buy-panel {
                margin-top: var(--spacing-md);
                padding: var(--spacing-sm);
            }
            .fab-custom {
                width: 48px;
                height: 48px;
                font-size: 1rem;
                left: 12px;
                bottom: 80px;
            }
            .vertical-card {
                flex: 0 0 200px;
            }
            .vertical-card-img {
                height: 130px;
            }
        }

        @media (max-width: 520px) {
            .hero-cta-group {
                flex-direction: column;
                width: 100%;
            }
            .hero-cta-group .btn {
                width: 100%;
                justify-content: center;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                padding: 12px 20px;
                font-size: 0.9rem;
            }
            .navbar-brand-custom {
                font-size: 0.95rem;
            }
            .navbar-brand-custom .brand-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .festival-content h3 {
                font-size: 1.25rem;
            }
        }

/* roulang page: article */
:root {
            --bg-dark: #0B0B0B;
            --bg-charcoal: #161616;
            --bg-elevated: #1E1E1E;
            --bg-card: #1A1A1A;
            --lava-orange: #FF4500;
            --fire-red: #FF0000;
            --text-white: #FFFFFF;
            --text-warm-gray: #CCCCCC;
            --text-muted: #999999;
            --border-dark: #2A2A2A;
            --border-orange: rgba(255, 69, 0, 0.4);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --shadow-soft: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-orange: 0 0 20px rgba(255, 69, 0, 0.3);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background-color: var(--bg-dark);
            color: var(--text-white);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a {
            color: var(--lava-orange);
            text-decoration: none;
            transition: var(--transition-base);
        }

        a:hover {
            color: #ff6633;
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Navbar */
        .navbar-custom {
            background-color: rgba(11, 11, 11, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-dark);
            padding: 12px 0;
            transition: var(--transition-base);
        }

        .navbar-custom.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
            border-bottom-color: rgba(255, 69, 0, 0.3);
        }

        .navbar-brand-custom {
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--text-white) !important;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: -0.3px;
        }

        .brand-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--lava-orange), var(--fire-red));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: #fff;
            box-shadow: 0 4px 12px rgba(255, 69, 0, 0.3);
        }

        .navbar-custom .nav-link {
            color: var(--text-warm-gray);
            font-weight: 500;
            font-size: 0.9rem;
            padding: 8px 16px !important;
            border-radius: 20px;
            transition: var(--transition-base);
            position: relative;
        }

        .navbar-custom .nav-link:hover {
            color: var(--text-white);
            background-color: rgba(255, 69, 0, 0.1);
        }

        .navbar-custom .nav-link.active {
            color: var(--lava-orange);
            font-weight: 600;
            background-color: rgba(255, 69, 0, 0.12);
        }

        .navbar-toggler-custom {
            border: none;
            color: var(--text-white);
            font-size: 1.4rem;
            padding: 6px 10px;
            border-radius: 8px;
            background-color: rgba(255, 69, 0, 0.15);
            transition: var(--transition-base);
        }

        .navbar-toggler-custom:focus {
            box-shadow: 0 0 0 3px rgba(255, 69, 0, 0.3);
        }

        .navbar-actions-desktop {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .navbar-actions-mobile {
            display: none;
            padding: 12px 0 8px;
            gap: 10px;
        }

        .btn-login-text {
            background: none;
            border: none;
            color: var(--text-warm-gray);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 8px 16px;
            border-radius: 20px;
            transition: var(--transition-base);
        }

        .btn-login-text:hover {
            color: var(--text-white);
            background-color: rgba(255, 255, 255, 0.05);
        }

        .btn-signup-solid {
            background: linear-gradient(135deg, var(--lava-orange), var(--fire-red));
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 10px 20px;
            border: none;
            border-radius: 22px;
            cursor: pointer;
            transition: var(--transition-base);
            box-shadow: 0 4px 16px rgba(255, 69, 0, 0.3);
        }

        .btn-signup-solid:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(255, 69, 0, 0.45);
            color: #fff;
        }

        .btn-signup-solid:active {
            transform: translateY(0);
        }

        /* Article Header */
        .article-header {
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            padding: 80px 0 60px;
            position: relative;
            border-bottom: 1px solid var(--border-dark);
        }

        .article-header::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 11, 11, 0.7) 0%, rgba(11, 11, 11, 0.9) 100%);
        }

        .article-header .container {
            position: relative;
            z-index: 1;
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .breadcrumb-custom a {
            color: var(--text-warm-gray);
        }

        .breadcrumb-custom a:hover {
            color: var(--lava-orange);
        }

        .breadcrumb-custom .separator {
            color: var(--lava-orange);
            font-weight: 600;
        }

        .article-category-badge {
            display: inline-block;
            background: rgba(255, 69, 0, 0.15);
            color: var(--lava-orange);
            font-size: 0.8rem;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .article-title {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -1px;
            color: var(--text-white);
            margin-bottom: 20px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .article-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta i {
            color: var(--lava-orange);
        }

        /* Article Content */
        .article-content-section {
            padding: 60px 0 40px;
        }

        .article-body {
            font-size: 1.05rem;
            color: var(--text-warm-gray);
            max-width: 820px;
        }

        .article-body h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-white);
            margin-top: 48px;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
            padding-bottom: 12px;
            border-bottom: 2px solid rgba(255, 69, 0, 0.3);
        }

        .article-body h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-white);
            margin-top: 36px;
            margin-bottom: 16px;
        }

        .article-body p {
            margin-bottom: 20px;
            line-height: 1.7;
        }

        .article-body ul, .article-body ol {
            margin-bottom: 20px;
            padding-left: 24px;
        }

        .article-body li {
            margin-bottom: 10px;
            line-height: 1.7;
        }

        .article-body strong {
            color: var(--text-white);
            font-weight: 700;
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            box-shadow: var(--shadow-soft);
        }

        .article-pull-quote {
            border-left: 4px solid var(--lava-orange);
            background: rgba(255, 69, 0, 0.05);
            padding: 24px 28px;
            margin: 32px 0;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-white);
            font-style: italic;
        }

        .article-pull-quote .quote-author {
            display: block;
            margin-top: 10px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            font-style: normal;
        }

        /* Sidebar */
        .article-sidebar {
            position: sticky;
            top: 100px;
        }

        .sidebar-widget {
            background-color: var(--bg-charcoal);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: 28px;
            margin-bottom: 24px;
        }

        .sidebar-widget-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-dark);
        }

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

        .sidebar-formula-list li {
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-warm-gray);
            font-size: 0.9rem;
        }

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

        .sidebar-formula-list .formula-number {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--lava-orange), var(--fire-red));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.85rem;
            color: #fff;
            flex-shrink: 0;
        }

        /* CTA */
        .article-cta {
            background: linear-gradient(135deg, rgba(255, 69, 0, 0.1), rgba(255, 0, 0, 0.05));
            border: 1px solid var(--border-orange);
            border-radius: var(--radius-lg);
            padding: 36px;
            margin: 40px 0;
            text-align: left;
        }

        .article-cta h3 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
        }

        .article-cta p {
            color: var(--text-warm-gray);
            margin-bottom: 20px;
        }

        .btn-cta-primary {
            background: linear-gradient(135deg, var(--lava-orange), var(--fire-red));
            color: #fff;
            font-weight: 700;
            padding: 12px 28px;
            border: none;
            border-radius: 24px;
            cursor: pointer;
            transition: var(--transition-base);
            box-shadow: 0 4px 16px rgba(255, 69, 0, 0.3);
            font-size: 0.95rem;
        }

        .btn-cta-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(255, 69, 0, 0.45);
            color: #fff;
        }

        /* Footer */
        .footer-section {
            background-color: var(--bg-charcoal);
            border-top: 1px solid var(--border-dark);
            padding: 60px 0 30px;
            margin-top: 40px;
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
        }

        .footer-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 400px;
        }

        .footer-links-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
        }

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

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition-base);
        }

        .footer-links a:hover {
            color: var(--lava-orange);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-dark);
            margin-top: 40px;
            padding-top: 20px;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        /* FAB */
        .fab-floating {
            position: fixed;
            left: 20px;
            bottom: 90px;
            z-index: 1050;
            width: 56px;
            height: 56px;
            background: rgba(11, 11, 11, 0.8);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(11, 11, 11, 0.8), rgba(11, 11, 11, 0.8)), linear-gradient(135deg, #FF4500, #FF0000);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 0 20px rgba(255, 69, 0, 0.4);
            opacity: 0.65;
            animation: fabPulse 3s ease-in-out infinite;
        }

        @keyframes fabPulse {
            0%, 100% {
                box-shadow: 0 0 20px rgba(255, 69, 0, 0.4);
            }
            50% {
                box-shadow: 0 0 32px rgba(255, 69, 0, 0.6);
            }
        }

        .fab-floating:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 36px rgba(255, 69, 0, 0.7);
        }

        .fab-floating:active {
            transform: scale(0.95);
        }

        .fab-floating i {
            color: #FF4500;
            font-size: 1.4rem;
        }

        .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: #FF0000;
            border-radius: 50%;
            border: 2px solid #0B0B0B;
            animation: blinkNotification 2s ease-in-out infinite;
        }

        @keyframes blinkNotification {
            0%, 100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }

        /* Responsive */
        @media (max-width: 991.98px) {
            .navbar-actions-desktop {
                display: none;
            }

            .navbar-actions-mobile {
                display: flex;
            }

            .article-title {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 767.98px) {
            .article-title {
                font-size: 1.8rem;
            }

            .article-header {
                padding: 60px 0 40px;
            }

            .article-body {
                font-size: 0.95rem;
            }

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

            .article-body h3 {
                font-size: 1.2rem;
            }

            .article-pull-quote {
                font-size: 1rem;
                padding: 18px 20px;
            }

            .article-cta {
                padding: 24px;
            }

            .fab-floating {
                width: 48px;
                height: 48px;
                left: 16px;
                bottom: 80px;
            }

            .fab-floating i {
                font-size: 1.2rem;
            }
        }

        @media (max-width: 519.98px) {
            .article-title {
                font-size: 1.5rem;
            }

            .article-meta {
                gap: 12px;
                font-size: 0.8rem;
            }

            .article-header {
                padding: 50px 0 30px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-deep: #0A2E1C;
            --bg-forest: #123E25;
            --bg-card: #0E3522;
            --accent-gold: #FFD700;
            --accent-gold-soft: #F0C75E;
            --accent-red: #D32F2F;
            --accent-red-dark: #A52727;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #9CC6BA;
            --border-gold: rgba(255, 215, 0, 0.4);
            --border-soft: rgba(255, 255, 255, 0.08);
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-soft: 0 6px 24px rgba(0, 0, 0, 0.3);
            --shadow-gold: 0 8px 28px rgba(255, 215, 0, 0.15);
            --shadow-red: 0 6px 18px rgba(211, 47, 47, 0.25);
            --font-body: 'Segoe UI', 'Inter', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --font-heading: 'Segoe UI', 'Inter', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-xxl: 88px;
            --transition-base: all 0.25s ease;
            --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-deep);
            color: var(--text-white);
            line-height: 1.65;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-white);
            margin-bottom: var(--spacing-sm);
        }

        h1 {
            font-size: clamp(2.2rem, 5vw, 3.8rem);
            letter-spacing: -0.01em;
        }

        h2 {
            font-size: clamp(1.7rem, 3.5vw, 2.5rem);
            letter-spacing: -0.005em;
        }

        h3 {
            font-size: clamp(1.2rem, 2.2vw, 1.5rem);
        }

        p {
            margin-bottom: var(--spacing-sm);
            color: var(--text-mint);
            font-size: 1rem;
        }

        a {
            color: var(--accent-gold-soft);
            text-decoration: none;
            transition: var(--transition-base);
        }

        a:hover {
            color: var(--accent-gold);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible {
            outline: 3px solid var(--accent-gold);
            outline-offset: 2px;
            border-radius: 6px;
        }

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

        ul, ol {
            padding-left: 1.25rem;
            color: var(--text-mint);
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ---------- Navbar Custom ---------- */
        .navbar-custom {
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-gold);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
            padding: 12px 0;
            transition: var(--transition-smooth);
            z-index: 1030;
        }

        .navbar-custom .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-white);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .navbar-custom .navbar-brand-custom:hover {
            color: var(--accent-gold);
        }

        .brand-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(145deg, var(--accent-gold), #B8860B);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-deep);
            font-size: 1.3rem;
            box-shadow: 0 4px 12px rgba(255, 215, 0, 0.35);
        }

        .navbar-custom .nav-link {
            color: var(--text-mint);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 14px;
            margin: 0 2px;
            border-radius: 8px;
            transition: var(--transition-base);
        }

        .navbar-custom .nav-link:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }

        .navbar-custom .nav-link.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.12);
            font-weight: 600;
        }

        .navbar-toggler-custom {
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            padding: 8px 12px;
            border-radius: 8px;
            background: transparent;
            font-size: 1.2rem;
            transition: var(--transition-base);
        }

        .navbar-toggler-custom:hover {
            background: rgba(255, 215, 0, 0.1);
        }

        .navbar-actions-desktop {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: 10px;
        }

        .navbar-actions-mobile {
            display: none;
            gap: 10px;
            margin-top: 10px;
            padding-top: 10px;
            border-top: 1px solid var(--border-soft);
        }

        .btn-login-text {
            background: transparent;
            border: none;
            color: var(--text-mint);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 8px 14px;
            border-radius: 8px;
            transition: var(--transition-base);
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-login-text:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }

        .btn-signup-solid {
            background: linear-gradient(145deg, var(--accent-gold), #DAA520);
            border: none;
            color: var(--bg-deep);
            font-weight: 700;
            font-size: 0.9rem;
            padding: 10px 20px;
            border-radius: 10px;
            transition: var(--transition-base);
            cursor: pointer;
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(255, 215, 0, 0.3);
        }

        .btn-signup-solid:hover {
            background: linear-gradient(145deg, #FFE14D, #FFD700);
            box-shadow: 0 6px 20px rgba(255, 215, 0, 0.45);
            transform: translateY(-1px);
            color: var(--bg-deep);
        }

        /* ---------- Hero Category ---------- */
        .hero-category {
            background: linear-gradient(160deg, var(--bg-deep) 0%, var(--bg-forest) 55%, #0A2E1C 100%);
            padding: 70px 0 50px;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-gold);
        }

        .hero-category::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-category::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(211, 47, 47, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-category .breadcrumb-custom {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-soft);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: var(--spacing-md);
        }

        .hero-category .breadcrumb-custom a {
            color: var(--accent-gold-soft);
            font-weight: 500;
        }

        .hero-category .breadcrumb-custom a:hover {
            color: var(--accent-gold);
        }

        .hero-badge {
            display: inline-block;
            background: rgba(211, 47, 47, 0.18);
            border: 1px solid rgba(211, 47, 47, 0.5);
            color: #FF8A80;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: var(--spacing-md);
        }

        .hero-category h1 {
            max-width: 800px;
            margin-bottom: var(--spacing-sm);
            position: relative;
            z-index: 2;
        }

        .hero-category .lead-custom {
            max-width: 700px;
            font-size: 1.15rem;
            color: var(--text-mint);
            margin-bottom: var(--spacing-md);
            position: relative;
            z-index: 2;
        }

        .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: var(--spacing-md);
            position: relative;
            z-index: 2;
        }

        .hero-stat-item {
            display: flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-soft);
            padding: 10px 18px;
            border-radius: 12px;
            color: var(--text-mint);
            font-size: 0.9rem;
        }

        .hero-stat-item i {
            color: var(--accent-gold);
            font-size: 1.1rem;
        }

        .hero-visual-wrapper {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-top: 10px;
        }

        .hero-visual-inner {
            background: rgba(14, 53, 34, 0.7);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 18px;
            box-shadow: var(--shadow-soft);
            backdrop-filter: blur(8px);
            width: 100%;
            max-width: 520px;
            position: relative;
        }

        .hero-visual-inner img {
            border-radius: var(--radius-md);
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 16/10;
        }

        .hero-visual-inner .visual-caption {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 12px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .visual-caption .status-dot {
            width: 8px;
            height: 8px;
            background: #4CAF50;
            border-radius: 50%;
            display: inline-block;
            margin-right: 6px;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(0.8); }
        }

        /* ---------- Section Common ---------- */
        .section-custom {
            padding: var(--spacing-xl) 0;
        }

        .section-custom.alt-bg {
            background: rgba(18, 62, 37, 0.4);
            border-top: 1px solid var(--border-soft);
            border-bottom: 1px solid var(--border-soft);
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid var(--border-gold);
            padding: 6px 14px;
            border-radius: 30px;
            margin-bottom: var(--spacing-sm);
        }

        .section-title {
            max-width: 750px;
            margin-bottom: var(--spacing-sm);
        }

        .section-subtitle {
            max-width: 650px;
            color: var(--text-muted);
            font-size: 1.05rem;
            margin-bottom: var(--spacing-lg);
        }

        /* ---------- Feature List ---------- */
        .feature-list-custom {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .feature-list-custom li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border-soft);
            color: var(--text-mint);
        }

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

        .feature-list-custom .feature-icon {
            width: 40px;
            height: 40px;
            min-width: 40px;
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-gold);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1rem;
        }

        /* ---------- Card Cau Type ---------- */
        .cau-card {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 24px;
            height: 100%;
            transition: var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .cau-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(180deg, var(--accent-gold), transparent);
            opacity: 0;
            transition: var(--transition-base);
        }

        .cau-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold);
            transform: translateY(-4px);
        }

        .cau-card:hover::before {
            opacity: 1;
        }

        .cau-card .cau-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            text-transform: uppercase;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
            background: rgba(211, 47, 47, 0.2);
            color: #FF8A80;
            border: 1px solid rgba(211, 47, 47, 0.4);
        }

        .cau-card .cau-tag.gold {
            background: rgba(255, 215, 0, 0.12);
            color: var(--accent-gold-soft);
            border-color: var(--border-gold);
        }

        .cau-card h3 {
            font-size: 1.25rem;
            margin-bottom: 8px;
        }

        .cau-card p {
            font-size: 0.95rem;
            margin-bottom: 0;
            color: var(--text-muted);
        }

        .cau-card .cau-pattern {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            flex-wrap: wrap;
        }

        .cau-pattern .pattern-dot {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            font-weight: 700;
            border: 1px solid var(--border-gold);
            background: rgba(255, 215, 0, 0.06);
            color: var(--accent-gold-soft);
        }

        .cau-pattern .pattern-dot.red {
            background: rgba(211, 47, 47, 0.2);
            color: #FF8A80;
            border-color: rgba(211, 47, 47, 0.5);
        }

        .cau-pattern .pattern-dot.blue {
            background: rgba(33, 150, 243, 0.15);
            color: #90CAF9;
            border-color: rgba(33, 150, 243, 0.4);
        }

        /* ---------- Formula Block ---------- */
        .formula-block {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 28px;
            margin-bottom: var(--spacing-md);
            transition: var(--transition-base);
        }

        .formula-block:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold);
        }

        .formula-number {
            width: 44px;
            height: 44px;
            background: linear-gradient(145deg, var(--accent-gold), #DAA520);
            color: var(--bg-deep);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.3rem;
            margin-bottom: 14px;
        }

        .formula-block h3 {
            font-size: 1.3rem;
            margin-bottom: 10px;
        }

        .formula-block p {
            margin-bottom: 0;
        }

        /* ---------- Steps ---------- */
        .steps-custom {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
            margin-top: var(--spacing-md);
        }

        .step-item {
            background: rgba(14, 53, 34, 0.5);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 22px;
            position: relative;
        }

        .step-item .step-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-gold);
            opacity: 0.7;
            line-height: 1;
            margin-bottom: 10px;
        }

        .step-item h4 {
            font-size: 1.05rem;
            margin-bottom: 6px;
        }

        .step-item p {
            font-size: 0.9rem;
            margin-bottom: 0;
        }

        /* ---------- FAQ ---------- */
        .faq-custom .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
        }

        .faq-custom .accordion-button {
            background: transparent;
            color: var(--text-white);
            font-weight: 600;
            font-size: 1rem;
            padding: 18px 20px;
            box-shadow: none;
            border-radius: var(--radius-md) !important;
        }

        .faq-custom .accordion-button:not(.collapsed) {
            background: rgba(255, 215, 0, 0.06);
            color: var(--accent-gold);
            box-shadow: none;
        }

        .faq-custom .accordion-button::after {
            filter: brightness(0) invert(1);
        }

        .faq-custom .accordion-button:focus {
            box-shadow: none;
            outline: none;
        }

        .faq-custom .accordion-body {
            color: var(--text-mint);
            font-size: 0.95rem;
            padding: 16px 20px 20px;
        }

        /* ---------- CTA Section ---------- */
        .cta-section {
            background: linear-gradient(145deg, var(--bg-forest), var(--bg-deep));
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 48px 36px;
            text-align: left;
            box-shadow: var(--shadow-gold);
            position: relative;
            overflow: hidden;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 2rem;
            margin-bottom: 12px;
            position: relative;
            z-index: 2;
        }

        .cta-section p {
            font-size: 1.1rem;
            color: var(--text-mint);
            margin-bottom: 24px;
            position: relative;
            z-index: 2;
        }

        .btn-cta-gold {
            background: linear-gradient(145deg, var(--accent-gold), #DAA520);
            border: none;
            color: var(--bg-deep);
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 28px;
            border-radius: 12px;
            transition: var(--transition-base);
            cursor: pointer;
            position: relative;
            z-index: 2;
            box-shadow: 0 6px 20px rgba(255, 215, 0, 0.3);
            display: inline-block;
        }

        .btn-cta-gold:hover {
            background: linear-gradient(145deg, #FFE14D, #FFD700);
            box-shadow: 0 8px 26px rgba(255, 215, 0, 0.5);
            transform: translateY(-2px);
            color: var(--bg-deep);
        }

        /* ---------- Footer ---------- */
        .footer-section {
            background: #071F14;
            border-top: 1px solid var(--border-gold);
            padding: 56px 0 24px;
            margin-top: var(--spacing-xl);
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer-brand i {
            color: var(--accent-gold);
            font-size: 1.5rem;
        }

        .footer-desc {
            color: var(--text-muted);
            font-size: 0.95rem;
            max-width: 400px;
        }

        .footer-links-title {
            font-weight: 700;
            color: var(--accent-gold-soft);
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 16px;
        }

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

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.95rem;
            transition: var(--transition-base);
        }

        .footer-links a:hover {
            color: var(--accent-gold);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-soft);
            margin-top: 32px;
            padding-top: 20px;
            color: var(--text-muted);
            font-size: 0.85rem;
            text-align: center;
        }

        /* ---------- FAB ---------- */
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 1050;
            width: 52px;
            height: 52px;
            background: var(--bg-deep);
            border: 2px solid var(--accent-gold);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.4rem;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            opacity: 0.7;
            transition: var(--transition-smooth);
            animation: fab-float 3s ease-in-out infinite;
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 6px 26px rgba(255, 215, 0, 0.45);
        }

        .fab-left:active {
            transform: scale(0.95);
        }

        .fab-left .fab-notification {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            background: #D32F2F;
            border-radius: 50%;
            border: 2px solid var(--bg-deep);
            animation: fab-blink 1.5s infinite;
        }

        @keyframes fab-float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }

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

        /* ---------- Responsive ---------- */
        @media (max-width: 991.98px) {
            .navbar-actions-desktop {
                display: none;
            }

            .navbar-actions-mobile {
                display: flex;
                flex-direction: column;
                width: 100%;
            }

            .navbar-actions-mobile .btn-login-text,
            .navbar-actions-mobile .btn-signup-solid {
                width: 100%;
                text-align: center;
            }

            .hero-category {
                padding: 50px 0 40px;
            }

            .hero-visual-inner {
                max-width: 100%;
                margin-top: 20px;
            }

            .cta-section {
                padding: 36px 24px;
            }
        }

        @media (max-width: 767.98px) {
            .section-custom {
                padding: var(--spacing-lg) 0;
            }

            .hero-stats-row {
                flex-direction: column;
                gap: 10px;
            }

            .formula-block {
                padding: 20px;
            }

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

            .footer-section {
                padding: 40px 0 20px;
            }
        }

        @media (max-width: 519.98px) {
            .navbar-custom .navbar-brand-custom {
                font-size: 1rem;
            }

            .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }

            .hero-category h1 {
                font-size: 1.9rem;
            }

            .hero-category .lead-custom {
                font-size: 1rem;
            }

            .cau-card {
                padding: 18px;
            }

            .cta-section h2 {
                font-size: 1.5rem;
            }

            .fab-left {
                width: 46px;
                height: 46px;
                font-size: 1.2rem;
                left: 12px;
                bottom: 80px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-dark: #071f13;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-soft: #A9C9BC;
            --border-gold: rgba(255, 215, 0, 0.45);
            --shadow-gold: 0 8px 30px rgba(255, 215, 0, 0.15);
            --shadow-card: 0 12px 35px rgba(0, 0, 0, 0.45);
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 10px;
            --font-primary: 'Segoe UI', 'Roboto', 'Helvetica Neue', sans-serif;
            --font-heading: 'Segoe UI', 'Roboto', 'Helvetica Neue', sans-serif;
            --spacing-section: 5rem;
            --spacing-gap: 1.75rem;
        }

        * {
            box-sizing: border-box;
        }

        body {
            margin: 0;
            font-family: var(--font-primary);
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a {
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
        }

        a:focus-visible,
        button:focus-visible {
            outline: 3px solid var(--accent-gold);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        .section-padding {
            padding-top: var(--spacing-section);
            padding-bottom: var(--spacing-section);
        }

        .section-padding-sm {
            padding-top: 3.5rem;
            padding-bottom: 3.5rem;
        }

        .text-gold {
            color: var(--accent-gold);
        }

        .text-mint {
            color: var(--text-mint);
        }

        .text-soft {
            color: var(--text-soft);
        }

        .bg-deep {
            background: var(--bg-dark);
        }

        .bg-forest {
            background: var(--bg-secondary);
        }

        /* Header / Nav */
        .navbar-custom {
            background: rgba(7, 31, 19, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 215, 0, 0.25);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
            padding: 0.75rem 0;
        }

        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--accent-gold);
            letter-spacing: 0.5px;
            font-family: var(--font-heading);
        }

        .navbar-brand-custom .brand-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent-gold), #b8860b);
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-primary);
            font-size: 1.1rem;
            box-shadow: 0 4px 14px rgba(255, 215, 0, 0.35);
        }

        .navbar-custom .navbar-nav .nav-link {
            color: var(--text-mint);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.6rem 0.9rem;
            margin: 0 0.15rem;
            border-radius: 999px;
            transition: all 0.3s ease;
            letter-spacing: 0.3px;
        }

        .navbar-custom .navbar-nav .nav-link:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }

        .navbar-custom .navbar-nav .nav-link.active {
            color: var(--bg-primary);
            background: var(--accent-gold);
            font-weight: 700;
            box-shadow: 0 4px 12px rgba(255, 215, 0, 0.3);
        }

        .navbar-actions-desktop {
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .navbar-actions-mobile {
            display: none;
        }

        .btn-login-text {
            background: transparent;
            border: none;
            color: var(--text-mint);
            font-weight: 600;
            padding: 0.6rem 1rem;
            font-size: 0.9rem;
            transition: color 0.25s ease;
            cursor: pointer;
        }

        .btn-login-text:hover {
            color: var(--accent-gold);
        }

        .btn-signup-solid {
            background: linear-gradient(135deg, var(--accent-gold), #f0c000);
            border: none;
            color: var(--bg-primary);
            font-weight: 700;
            padding: 0.6rem 1.3rem;
            border-radius: 999px;
            font-size: 0.9rem;
            cursor: pointer;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
            box-shadow: 0 6px 18px rgba(255, 215, 0, 0.35);
        }

        .btn-signup-solid:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(255, 215, 0, 0.5);
        }

        .navbar-toggler-custom {
            border: 1px solid rgba(255, 215, 0, 0.5);
            color: var(--accent-gold);
            font-size: 1.4rem;
            padding: 0.4rem 0.7rem;
            background: transparent;
        }

        /* Hero */
        .hero-category {
            background: radial-gradient(circle at 20% 30%, rgba(255, 215, 0, 0.08) 0%, transparent 45%),
                        radial-gradient(circle at 85% 20%, rgba(18, 62, 37, 0.95) 0%, transparent 55%),
                        var(--bg-primary);
            padding: 5.5rem 0 4rem;
            border-bottom: 1px solid rgba(255, 215, 0, 0.18);
        }

        .hero-category h1 {
            font-size: 2.9rem;
            font-weight: 800;
            line-height: 1.2;
            font-family: var(--font-heading);
            color: var(--text-white);
            margin-bottom: 1.25rem;
        }

        .hero-category .lead {
            font-size: 1.2rem;
            color: var(--text-mint);
            max-width: 720px;
            line-height: 1.7;
        }

        .hero-cta-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 0.9rem;
            margin-top: 2rem;
        }

        .btn-gold {
            background: linear-gradient(135deg, var(--accent-gold), #e6be00);
            color: var(--bg-primary);
            font-weight: 700;
            border: none;
            padding: 0.8rem 1.8rem;
            border-radius: 999px;
            transition: all 0.3s ease;
            box-shadow: 0 8px 22px rgba(255, 215, 0, 0.35);
        }

        .btn-gold:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 30px rgba(255, 215, 0, 0.5);
            color: var(--bg-primary);
        }

        .btn-outline-gold {
            background: transparent;
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold);
            font-weight: 600;
            padding: 0.8rem 1.8rem;
            border-radius: 999px;
            transition: all 0.3s ease;
        }

        .btn-outline-gold:hover {
            background: var(--accent-gold);
            color: var(--bg-primary);
        }

        /* Section Titles */
        .section-heading {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-white);
            margin-bottom: 1rem;
            font-family: var(--font-heading);
        }

        .section-subheading {
            font-size: 1.05rem;
            color: var(--text-soft);
            max-width: 680px;
            line-height: 1.7;
        }

        .divider-gold {
            width: 70px;
            height: 4px;
            background: linear-gradient(90deg, var(--accent-gold), transparent);
            border-radius: 999px;
            margin: 0.75rem 0 1.25rem;
        }

        /* Card Styles */
        .card-custom {
            background: rgba(7, 31, 19, 0.85);
            border: 1px solid rgba(255, 215, 0, 0.22);
            border-radius: var(--radius-md);
            padding: 1.8rem;
            height: 100%;
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
            box-shadow: var(--shadow-card);
        }

        .card-custom:hover {
            transform: translateY(-6px);
            border-color: var(--accent-gold);
            box-shadow: 0 20px 45px rgba(255, 215, 0, 0.2);
        }

        .card-custom .card-icon {
            font-size: 2.2rem;
            color: var(--accent-gold);
            margin-bottom: 1rem;
        }

        .card-custom h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.75rem;
            font-family: var(--font-heading);
        }

        .card-custom p {
            color: var(--text-soft);
            font-size: 0.98rem;
            margin-bottom: 0;
            line-height: 1.65;
        }

        .badge-gold {
            background: rgba(255, 215, 0, 0.15);
            color: var(--accent-gold);
            font-weight: 600;
            padding: 0.35rem 0.85rem;
            border-radius: 999px;
            font-size: 0.8rem;
            border: 1px solid rgba(255, 215, 0, 0.35);
        }

        .badge-red {
            background: rgba(211, 47, 47, 0.2);
            color: #ff7b7b;
            font-weight: 600;
            padding: 0.35rem 0.85rem;
            border-radius: 999px;
            font-size: 0.8rem;
            border: 1px solid rgba(211, 47, 47, 0.4);
        }

        /* List styles */
        .custom-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .custom-list li {
            padding: 0.75rem 0;
            color: var(--text-mint);
            font-size: 1rem;
            display: flex;
            align-items: flex-start;
            gap: 0.7rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

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

        .custom-list i {
            color: var(--accent-gold);
            margin-top: 0.2rem;
        }

        /* FAQ */
        .faq-accordion .accordion-item {
            background: rgba(7, 31, 19, 0.85);
            border: 1px solid rgba(255, 215, 0, 0.18);
            border-radius: var(--radius-sm);
            margin-bottom: 0.85rem;
            overflow: hidden;
        }

        .faq-accordion .accordion-button {
            background: transparent;
            color: var(--text-white);
            font-weight: 600;
            font-size: 1rem;
            padding: 1.2rem 1.5rem;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: rgba(255, 215, 0, 0.08);
            color: var(--accent-gold);
        }

        .faq-accordion .accordion-body {
            color: var(--text-soft);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: var(--accent-gold);
        }

        .faq-accordion .accordion-button::after {
            filter: brightness(0) invert(1);
        }

        /* Footer */
        .footer-section {
            background: var(--bg-dark);
            border-top: 1px solid rgba(255, 215, 0, 0.2);
            padding: 3.5rem 0 1.5rem;
            margin-top: 2rem;
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 1rem;
            font-family: var(--font-heading);
        }

        .footer-desc {
            color: var(--text-soft);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .footer-links-title {
            color: var(--text-white);
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 1rem;
        }

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

        .footer-links li {
            margin-bottom: 0.6rem;
        }

        .footer-links a {
            color: var(--text-soft);
            font-size: 0.92rem;
            transition: color 0.25s ease;
        }

        .footer-links a:hover {
            color: var(--accent-gold);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            color: var(--text-soft);
            font-size: 0.85rem;
            text-align: center;
        }

        /* FAB Classic & Royal Style */
        .fab-left {
            position: fixed;
            left: 1.2rem;
            bottom: 5rem;
            z-index: 1050;
            width: 58px;
            height: 58px;
            border-radius: 50%;
            background: radial-gradient(circle at 35% 30%, #3a2a0a, #0a1f14 70%);
            border: 3px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.7rem;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            opacity: 0.7;
            animation: fabBreathe 3s ease-in-out infinite;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.55);
        }

        .fab-left:active {
            transform: scale(0.95) translateY(1px);
        }

        .fab-left::after {
            content: '';
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            background: var(--accent-red);
            border-radius: 50%;
            border: 2px solid #fff;
            animation: blinkDot 1.5s infinite;
        }

        @keyframes fabBreathe {
            0%, 100% { opacity: 0.7; }
            50% { opacity: 1; }
        }

        @keyframes blinkDot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* Responsive */
        @media (max-width: 991.98px) {
            .navbar-actions-desktop {
                display: none;
            }
            .navbar-actions-mobile {
                display: flex;
                flex-direction: column;
                gap: 0.5rem;
                padding: 0.75rem 0 0.5rem;
            }
            .navbar-collapse-custom {
                background: rgba(7, 31, 19, 0.98);
                border-radius: var(--radius-sm);
                padding: 0.8rem 1rem;
                margin-top: 0.5rem;
                border: 1px solid rgba(255, 215, 0, 0.2);
            }
            .hero-category h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 767.98px) {
            :root {
                --spacing-section: 3.5rem;
            }
            .hero-category {
                padding: 3.5rem 0 2.5rem;
            }
            .hero-category h1 {
                font-size: 1.9rem;
            }
            .section-heading {
                font-size: 1.6rem;
            }
            .fab-left {
                width: 50px;
                height: 50px;
                font-size: 1.4rem;
                left: 0.9rem;
                bottom: 4rem;
            }
        }

        @media (max-width: 519.98px) {
            .hero-category h1 {
                font-size: 1.6rem;
            }
            .hero-cta-buttons .btn {
                width: 100%;
            }
            .card-custom {
                padding: 1.4rem;
            }
        }

/* roulang page: category3 */
:root {
            --bg-deep: #0F0C20;
            --bg-ocean: #0B1A30;
            --bg-card: #151230;
            --bg-elevated: #1D1840;
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --accent-hotpink: #FF007F;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --text-muted: #7A7F85;
            --border-neon: rgba(0, 240, 255, 0.25);
            --border-lime: rgba(204, 255, 0, 0.3);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.4);
            --shadow-lime: 0 0 12px rgba(204, 255, 0, 0.3);
            --shadow-card: 0 12px 30px rgba(0, 0, 0, 0.55);
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --font-sans: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-med: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-ocean) 100%);
            color: var(--text-white);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

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

        a:hover,
        a:focus {
            color: var(--accent-lime);
            text-shadow: 0 0 8px rgba(204, 255, 0, 0.6);
        }

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

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

        .container-custom {
            width: min(100% - 2.5rem, 1240px);
            margin-inline: auto;
        }

        /* Navbar */
        .navbar-custom {
            background: rgba(15, 12, 32, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.18);
            padding: 0.65rem 0;
            box-shadow: 0 6px 25px rgba(0, 0, 0, 0.45);
            z-index: 1050;
        }

        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-white) !important;
            letter-spacing: 0.3px;
        }

        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-deep);
            font-size: 1rem;
            box-shadow: 0 0 16px rgba(0, 240, 255, 0.55);
        }

        .navbar-toggler-custom {
            border: 1px solid rgba(0, 240, 255, 0.4);
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent-cyan);
            padding: 0.4rem 0.7rem;
            font-size: 1.2rem;
            border-radius: 10px;
        }

        .navbar-collapse-custom {
            background: rgba(15, 12, 32, 0.98);
            border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            padding: 1rem 1.25rem;
        }

        .navbar-nav .nav-link {
            color: var(--text-silver) !important;
            font-weight: 500;
            padding: 0.6rem 1rem;
            border-radius: 10px;
            margin: 0.1rem 0;
            transition: all var(--transition-fast);
        }

        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link:focus {
            color: var(--accent-cyan) !important;
            background: rgba(0, 240, 255, 0.08);
        }

        .navbar-nav .nav-link.active {
            color: var(--bg-deep) !important;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            font-weight: 700;
            box-shadow: 0 0 16px rgba(0, 240, 255, 0.4);
        }

        .navbar-actions-desktop,
        .navbar-actions-mobile {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .navbar-actions-desktop {
            margin-left: 1.25rem;
        }

        .navbar-actions-mobile {
            padding: 0.75rem 0 0.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 0.5rem;
        }

        .btn-login-text {
            background: transparent;
            border: none;
            color: var(--text-silver);
            font-weight: 600;
            padding: 0.55rem 1rem;
            border-radius: 10px;
            transition: all var(--transition-fast);
        }

        .btn-login-text:hover {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.1);
        }

        .btn-signup-solid {
            background: linear-gradient(135deg, var(--accent-lime), #A3D900);
            color: var(--bg-deep);
            border: none;
            font-weight: 700;
            padding: 0.55rem 1.35rem;
            border-radius: 10px;
            box-shadow: 0 0 18px rgba(204, 255, 0, 0.5);
            transition: all var(--transition-fast);
        }

        .btn-signup-solid:hover {
            background: linear-gradient(135deg, #DDFF33, var(--accent-lime));
            box-shadow: 0 0 28px rgba(204, 255, 0, 0.8);
            transform: translateY(-2px);
        }

        /* Hero */
        .hero-category {
            position: relative;
            padding: 4.5rem 0 3.5rem;
            background: 
                radial-gradient(ellipse at 20% 20%, rgba(0, 240, 255, 0.15), transparent 55%),
                radial-gradient(ellipse at 80% 80%, rgba(255, 0, 127, 0.12), transparent 55%),
                linear-gradient(160deg, #120E2D 0%, #0B1A30 100%);
            border-bottom: 1px solid var(--border-neon);
            overflow: hidden;
        }

        .hero-category::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(204, 255, 0, 0.12), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-category::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 450px;
            height: 450px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.1), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 0, 127, 0.18);
            border: 1px solid rgba(255, 0, 127, 0.45);
            color: #FF8AC2;
            font-size: 0.85rem;
            font-weight: 600;
            padding: 0.4rem 1rem;
            border-radius: 50px;
            letter-spacing: 0.4px;
            margin-bottom: 1.4rem;
            box-shadow: 0 0 18px rgba(255, 0, 127, 0.25);
        }

        .hero-category h1 {
            font-size: clamp(2rem, 4.5vw, 3.2rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1.2rem;
            background: linear-gradient(135deg, #FFFFFF 0%, #A6ACAF 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-category .lead {
            font-size: 1.15rem;
            color: var(--text-silver);
            max-width: 780px;
            margin-bottom: 2rem;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin-top: 1.5rem;
        }

        .stat-chip {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(0, 240, 255, 0.25);
            border-radius: 50px;
            padding: 0.5rem 1.2rem;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--accent-cyan);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .hero-visual {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-card), 0 0 40px rgba(0, 240, 255, 0.15);
            border: 1px solid var(--border-neon);
        }

        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 280px;
            filter: saturate(1.1) contrast(1.05);
        }

        .hero-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 12, 32, 0.1) 0%, rgba(15, 12, 32, 0.65) 100%);
            pointer-events: none;
        }

        .hero-visual-overlay {
            position: absolute;
            bottom: 1.5rem;
            left: 1.5rem;
            z-index: 2;
        }

        .hero-visual-overlay .badge-18 {
            background: rgba(0, 0, 0, 0.7);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-weight: 700;
            padding: 0.3rem 0.8rem;
            border-radius: 8px;
            font-size: 0.8rem;
        }

        /* Section General */
        .section-block {
            padding: 4rem 0;
        }

        .section-block-alt {
            background: rgba(255, 255, 255, 0.02);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 1.2px;
            text-transform: uppercase;
            color: var(--accent-lime);
            margin-bottom: 0.8rem;
        }

        .section-title {
            font-size: clamp(1.7rem, 3.2vw, 2.4rem);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 1rem;
            color: var(--text-white);
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-silver);
            max-width: 720px;
            margin-bottom: 2.5rem;
        }

        /* Avoid Cards */
        .avoid-card {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 2rem 1.8rem;
            height: 100%;
            transition: all var(--transition-med);
            position: relative;
            overflow: hidden;
        }

        .avoid-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 5px;
            height: 100%;
            background: linear-gradient(180deg, var(--accent-hotpink), var(--accent-cyan));
            opacity: 0.8;
        }

        .avoid-card:hover {
            border-color: rgba(255, 0, 127, 0.5);
            box-shadow: 0 0 28px rgba(255, 0, 127, 0.2);
            transform: translateY(-5px);
        }

        .avoid-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(255, 0, 127, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-hotpink);
            font-size: 1.5rem;
            margin-bottom: 1.2rem;
        }

        .avoid-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
            color: var(--text-white);
        }

        .avoid-card p {
            color: var(--text-silver);
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        /* Formula Comparison */
        .formula-panel {
            background: var(--bg-elevated);
            border: 1px solid var(--border-lime);
            border-radius: var(--radius-lg);
            padding: 2rem;
            height: 100%;
            box-shadow: 0 0 22px rgba(204, 255, 0, 0.1);
            transition: all var(--transition-med);
        }

        .formula-panel:hover {
            box-shadow: 0 0 32px rgba(204, 255, 0, 0.22);
            border-color: var(--accent-lime);
        }

        .formula-panel .formula-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--accent-lime);
            line-height: 1;
            margin-bottom: 0.5rem;
            text-shadow: 0 0 18px rgba(204, 255, 0, 0.5);
        }

        .formula-panel h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
        }

        .formula-panel p {
            color: var(--text-silver);
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        /* Steps */
        .step-item {
            display: flex;
            gap: 1.2rem;
            padding: 1.2rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

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

        .step-marker {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            color: var(--bg-deep);
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: 0 0 14px rgba(0, 240, 255, 0.4);
        }

        .step-content h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.3rem;
        }

        .step-content p {
            color: var(--text-silver);
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        /* FAQ */
        .accordion-custom .accordion-item {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md) !important;
            margin-bottom: 1rem;
            overflow: hidden;
        }

        .accordion-custom .accordion-button {
            background: transparent;
            color: var(--text-white);
            font-weight: 600;
            padding: 1.2rem 1.5rem;
            box-shadow: none;
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            background: rgba(0, 240, 255, 0.08);
            color: var(--accent-cyan);
        }

        .accordion-custom .accordion-button:focus {
            box-shadow: none;
            border-color: var(--accent-cyan);
        }

        .accordion-custom .accordion-body {
            color: var(--text-silver);
            padding: 1rem 1.5rem 1.5rem;
        }

        /* CTA */
        .cta-panel {
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.1), rgba(204, 255, 0, 0.08));
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-xl);
            padding: 3rem 2rem;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: 0 0 40px rgba(0, 240, 255, 0.12);
        }

        .cta-panel h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 800;
            margin-bottom: 1rem;
        }

        .cta-panel p {
            color: var(--text-silver);
            max-width: 620px;
            margin-inline: auto;
            margin-bottom: 2rem;
        }

        .btn-cta-primary {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            color: var(--bg-deep);
            font-weight: 700;
            padding: 0.9rem 2.5rem;
            border-radius: 50px;
            border: none;
            font-size: 1.05rem;
            box-shadow: 0 0 24px rgba(0, 240, 255, 0.5);
            transition: all var(--transition-med);
        }

        .btn-cta-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 0 36px rgba(0, 240, 255, 0.8);
            color: var(--bg-deep);
        }

        /* FAB */
        .fab-cyber {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 1080;
            width: 56px;
            height: 56px;
            border-radius: 28px;
            background: rgba(0, 0, 0, 0.65);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.4rem;
            box-shadow: 0 0 18px rgba(0, 240, 255, 0.5);
            opacity: 0.65;
            transition: all var(--transition-med);
            animation: fabPulse 3s ease-in-out infinite;
            cursor: pointer;
        }

        .fab-cyber::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 30px;
            padding: 2px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime), var(--accent-hotpink));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
        }

        .fab-cyber:hover {
            opacity: 1;
            box-shadow: 0 0 34px rgba(0, 240, 255, 0.9);
            transform: scale(1.1);
        }

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

        @keyframes fabPulse {
            0%, 100% { opacity: 0.65; }
            50% { opacity: 0.9; }
        }

        /* Footer */
        .footer-section {
            background: #08061A;
            border-top: 1px solid rgba(0, 240, 255, 0.15);
            padding: 3rem 0 1.5rem;
            margin-top: 2rem;
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
        }

        .footer-desc {
            color: var(--text-silver);
            font-size: 0.95rem;
            max-width: 420px;
        }

        .footer-links-title {
            font-weight: 700;
            color: var(--accent-cyan);
            margin-bottom: 1rem;
            font-size: 1rem;
        }

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

        .footer-links li {
            margin-bottom: 0.6rem;
        }

        .footer-links a {
            color: var(--text-silver);
            font-size: 0.95rem;
            transition: all var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--accent-lime);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 2rem;
            padding-top: 1.5rem;
            color: var(--text-muted);
            font-size: 0.85rem;
            text-align: center;
        }

        /* Responsive */
        @media (min-width: 992px) {
            .navbar-collapse-custom {
                background: transparent;
                padding: 0;
                border-radius: 0;
            }
            .navbar-actions-mobile {
                display: none !important;
            }
            .hero-category {
                padding: 5.5rem 0 4.5rem;
            }
        }

        @media (max-width: 991.98px) {
            .navbar-actions-desktop {
                display: none !important;
            }
            .navbar-nav {
                padding-bottom: 0.5rem;
            }
            .hero-category {
                padding: 3.5rem 0 3rem;
            }
        }

        @media (max-width: 767.98px) {
            .hero-category h1 {
                font-size: 1.9rem;
            }
            .hero-visual {
                margin-top: 2rem;
                min-height: 240px;
            }
            .section-block {
                padding: 3rem 0;
            }
            .avoid-card,
            .formula-panel {
                padding: 1.5rem;
            }
            .fab-cyber {
                left: 0.75rem;
                bottom: 5rem;
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
            .cta-panel {
                padding: 2.2rem 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .hero-stats {
                gap: 0.8rem;
            }
            .stat-chip {
                font-size: 0.8rem;
                padding: 0.4rem 0.9rem;
            }
            .step-item {
                flex-direction: column;
                gap: 0.6rem;
            }
            .step-marker {
                width: 38px;
                height: 38px;
                font-size: 0.95rem;
            }
        }