/* roulang page: index */
:root {
            --bg-primary: #0F0C20;
            --bg-secondary: #0B1A30;
            --bg-deep: #08050F;
            --accent-cyan: #00F0FF;
            --accent-lime: #CCFF00;
            --accent-pink: #FF007F;
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --text-muted: #6C7278;
            --border-glow: rgba(0, 240, 255, 0.25);
            --border-subtle: rgba(255, 255, 255, 0.08);
            --card-bg: rgba(255, 255, 255, 0.03);
            --card-hover: rgba(255, 255, 255, 0.06);
            --shadow-glow: 0 0 20px rgba(0, 240, 255, 0.15);
            --shadow-glow-hover: 0 0 35px rgba(0, 240, 255, 0.35);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --font-body: 'Inter', 'Segoe UI', 'Roboto', 'Helvetica Neue', sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s 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-body);
            background-color: var(--bg-primary);
            background-image: 
                radial-gradient(ellipse at 20% 10%, rgba(0, 240, 255, 0.06) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 30%, rgba(204, 255, 0, 0.04) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 70%, rgba(255, 0, 127, 0.04) 0%, transparent 50%);
            color: var(--text-primary);
            line-height: 1.65;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover {
            color: var(--accent-lime);
            opacity: 0.9;
        }

        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: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 768px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                padding-left: 12px;
                padding-right: 12px;
            }
        }

        /* ========== NAVBAR ========== */
        .navbar-custom {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(8, 5, 15, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-smooth), border-color var(--transition-smooth);
        }

        .navbar-custom .navbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }

        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            max-width: 340px;
        }

        .navbar-brand-custom .brand-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-deep);
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        .navbar-brand-custom .brand-text {
            overflow: hidden;
            text-overflow: ellipsis;
            font-size: 0.95rem;
            line-height: 1.2;
        }

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

        .navbar-nav-custom li a {
            display: block;
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .navbar-nav-custom li a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
        }

        .navbar-nav-custom li a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.2);
        }

        .navbar-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .btn-login-text {
            background: none;
            border: none;
            color: var(--text-secondary);
            font-size: 0.9rem;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: 50px;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

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

        .btn-signup-solid {
            background: linear-gradient(135deg, var(--accent-cyan), #0099FF);
            color: var(--bg-deep);
            border: none;
            font-size: 0.9rem;
            font-weight: 700;
            padding: 10px 22px;
            border-radius: 50px;
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 4px 15px rgba(0, 240, 255, 0.3);
        }

        .btn-signup-solid:hover {
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(0, 240, 255, 0.45);
            color: var(--bg-deep);
        }

        .navbar-toggler-custom {
            background: none;
            border: 1px solid var(--border-subtle);
            color: var(--text-primary);
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: none;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            transition: all var(--transition-fast);
        }

        .navbar-toggler-custom:hover {
            background: rgba(255, 255, 255, 0.05);
            border-color: var(--border-glow);
        }

        @media (max-width: 992px) {
            .navbar-toggler-custom {
                display: flex;
            }

            .navbar-nav-custom {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(8, 5, 15, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                border-bottom: 1px solid var(--border-subtle);
                flex-direction: column;
                padding: 16px 24px;
                gap: 8px;
                align-items: flex-start;
            }

            .navbar-nav-custom.show {
                display: flex;
            }

            .navbar-nav-custom li {
                width: 100%;
            }

            .navbar-nav-custom li a {
                padding: 12px 16px;
                font-size: 1rem;
                width: 100%;
            }

            .navbar-actions {
                gap: 6px;
            }

            .btn-login-text {
                padding: 8px 10px;
                font-size: 0.85rem;
            }

            .btn-signup-solid {
                padding: 8px 16px;
                font-size: 0.85rem;
            }

            .navbar-brand-custom .brand-text {
                font-size: 0.8rem;
                max-width: 180px;
            }
        }

        @media (max-width: 520px) {
            .navbar-inner {
                height: 64px;
                gap: 8px;
            }

            .navbar-nav-custom {
                top: 64px;
            }

            .navbar-brand-custom .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 1rem;
                border-radius: 10px;
            }

            .navbar-brand-custom .brand-text {
                font-size: 0.7rem;
                max-width: 130px;
            }

            .btn-login-text {
                font-size: 0.75rem;
                padding: 6px 8px;
            }

            .btn-signup-solid {
                font-size: 0.75rem;
                padding: 6px 12px;
            }

            .navbar-toggler-custom {
                width: 38px;
                height: 38px;
                font-size: 1.1rem;
            }
        }

        /* ========== HERO (Creator Profile Header) ========== */
        .hero-section {
            position: relative;
            padding-top: 140px;
            padding-bottom: 70px;
            background-image: 
                linear-gradient(180deg, rgba(8, 5, 15, 0.85) 0%, rgba(15, 12, 32, 0.95) 100%),
                url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            border-bottom: 1px solid var(--border-subtle);
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -20%;
            width: 70%;
            height: 200%;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.12) 0%, transparent 60%);
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -30%;
            right: -10%;
            width: 60%;
            height: 150%;
            background: radial-gradient(circle, rgba(204, 255, 0, 0.08) 0%, transparent 60%);
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
        }

        .hero-avatar-wrapper {
            position: relative;
            margin-bottom: 24px;
        }

        .hero-avatar {
            width: 110px;
            height: 110px;
            border-radius: 50%;
            border: 3px solid var(--accent-cyan);
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.5rem;
            color: var(--bg-deep);
            box-shadow: 0 0 40px rgba(0, 240, 255, 0.4);
            animation: avatarGlow 3s ease-in-out infinite;
        }

        @keyframes avatarGlow {
            0%, 100% { box-shadow: 0 0 30px rgba(0, 240, 255, 0.3); }
            50% { box-shadow: 0 0 55px rgba(0, 240, 255, 0.6); }
        }

        .hero-badge-online {
            position: absolute;
            bottom: 4px;
            right: 4px;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: #00E676;
            border: 3px solid var(--bg-primary);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.15); }
        }

        .hero-nickname {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-lime);
            text-transform: uppercase;
            letter-spacing: 0.1em;
            margin-bottom: 8px;
        }

        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            line-height: 1.2;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

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

        .hero-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 700px;
            line-height: 1.7;
            margin-bottom: 28px;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 20px 40px;
            margin-bottom: 32px;
            justify-content: center;
        }

        .hero-stat-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
        }

        .hero-stat-value {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--accent-cyan);
            letter-spacing: -0.01em;
        }

        .hero-stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
            align-items: center;
        }

        .btn-primary-custom {
            background: linear-gradient(135deg, var(--accent-cyan), #0099FF);
            color: var(--bg-deep);
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 30px;
            border-radius: 50px;
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 20px rgba(0, 240, 255, 0.35);
        }

        .btn-primary-custom:hover {
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(0, 240, 255, 0.5);
            color: var(--bg-deep);
        }

        .btn-secondary-custom {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1rem;
            padding: 14px 28px;
            border-radius: 50px;
            border: 1px solid var(--border-glow);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: all var(--transition-fast);
            backdrop-filter: blur(10px);
        }

        .btn-secondary-custom:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--accent-cyan);
            transform: translateY(-3px);
            color: var(--text-primary);
        }

        @media (max-width: 768px) {
            .hero-section {
                padding-top: 110px;
                padding-bottom: 50px;
            }

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

            .hero-subtitle {
                font-size: 0.95rem;
            }

            .hero-avatar {
                width: 85px;
                height: 85px;
                font-size: 2rem;
            }

            .hero-stat-value {
                font-size: 1.15rem;
            }
        }

        @media (max-width: 520px) {
            .hero-section {
                padding-top: 90px;
                padding-bottom: 40px;
            }

            .hero-title {
                font-size: 1.55rem;
            }

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

            .hero-stats {
                gap: 12px 20px;
            }

            .hero-stat-value {
                font-size: 1rem;
            }

            .btn-primary-custom,
            .btn-secondary-custom {
                font-size: 0.85rem;
                padding: 12px 20px;
                width: 100%;
                justify-content: center;
            }
        }

        /* ========== SECTION COMMON ========== */
        .section-custom {
            padding: 70px 0;
            position: relative;
        }

        .section-custom .section-header {
            margin-bottom: 40px;
        }

        .section-custom .section-label {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: var(--accent-lime);
            margin-bottom: 10px;
        }

        .section-custom .section-title {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.25;
        }

        .section-custom .section-desc {
            font-size: 0.95rem;
            color: var(--text-secondary);
            max-width: 650px;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .section-custom {
                padding: 45px 0;
            }

            .section-custom .section-title {
                font-size: 1.55rem;
            }
        }

        @media (max-width: 520px) {
            .section-custom {
                padding: 35px 0;
            }

            .section-custom .section-title {
                font-size: 1.3rem;
            }
        }

        /* ========== ENTRY MATRIX / CATEGORY GRID ========== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .category-card {
            position: relative;
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: all var(--transition-smooth);
            overflow: hidden;
            cursor: pointer;
            display: block;
            color: var(--text-primary);
        }

        .category-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);
        }

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

        .category-card:hover {
            background: var(--card-hover);
            border-color: var(--border-glow);
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow-hover);
            color: var(--text-primary);
        }

        .category-card .category-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-cyan);
            margin-bottom: 16px;
        }

        .category-card .category-name {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .category-card .category-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 14px;
        }

        .category-card .category-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-cyan);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .category-card:hover .category-link {
            color: var(--accent-lime);
        }

        @media (max-width: 992px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 620px) {
            .category-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .category-card {
                padding: 20px 18px;
            }
        }

        /* ========== MILESTONE TIMELINE ========== */
        .timeline-section {
            background: linear-gradient(180deg, rgba(11, 26, 48, 0.5) 0%, rgba(15, 12, 32, 0.8) 100%);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .timeline-wrapper {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding-left: 30px;
        }

        .timeline-wrapper::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--accent-cyan), var(--accent-lime), var(--accent-pink));
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            margin-bottom: 35px;
            padding-left: 20px;
        }

        .timeline-item:last-child {
            margin-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent-cyan);
            border: 3px solid var(--bg-primary);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
        }

        .timeline-item .timeline-time {
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--accent-lime);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 4px;
        }

        .timeline-item .timeline-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .timeline-item .timeline-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        @media (max-width: 520px) {
            .timeline-wrapper {
                padding-left: 22px;
            }

            .timeline-wrapper::before {
                left: 5px;
            }

            .timeline-item::before {
                left: -20px;
                width: 11px;
                height: 11px;
            }

            .timeline-item {
                padding-left: 12px;
            }
        }

        /* ========== NEWS / CMS LIST ========== */
        .news-layout {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 30px;
            align-items: start;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-list-item {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 18px 10px;
            border-bottom: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
            border-radius: 8px;
        }

        .news-list-item:hover {
            background: rgba(255, 255, 255, 0.03);
            padding-left: 16px;
        }

        .news-list-item .news-index {
            font-size: 1.5rem;
            font-weight: 800;
            color: rgba(0, 240, 255, 0.3);
            min-width: 40px;
            text-align: center;
            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);
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }

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

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

        .news-list-item .news-meta .news-cat {
            color: var(--accent-lime);
            font-weight: 600;
        }

        .news-sidebar {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 24px;
            position: sticky;
            top: 100px;
        }

        .news-sidebar .sidebar-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-subtle);
        }

        .news-sidebar .sidebar-item {
            display: flex;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-subtle);
        }

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

        .news-sidebar .sidebar-thumb {
            width: 52px;
            height: 52px;
            border-radius: 10px;
            object-fit: cover;
            flex-shrink: 0;
        }

        .news-sidebar .sidebar-text {
            flex: 1;
            min-width: 0;
        }

        .news-sidebar .sidebar-text .sidebar-title-text {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--text-primary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }

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

        .news-sidebar .sidebar-text .sidebar-date {
            font-size: 0.72rem;
            color: var(--text-muted);
        }

        @media (max-width: 900px) {
            .news-layout {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .news-sidebar {
                position: static;
                order: 2;
            }
        }

        @media (max-width: 520px) {
            .news-list-item {
                gap: 10px;
                padding: 14px 6px;
            }

            .news-list-item .news-index {
                font-size: 1.2rem;
                min-width: 28px;
            }

            .news-list-item .news-title {
                font-size: 0.85rem;
            }

            .news-list-item .news-meta {
                font-size: 0.7rem;
                flex-wrap: wrap;
                gap: 6px;
            }
        }

        /* ========== PLATFORM TRUST ========== */
        .trust-section {
            background: linear-gradient(180deg, rgba(11, 26, 48, 0.6) 0%, rgba(15, 12, 32, 0.9) 100%);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .trust-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .trust-item {
            text-align: center;
            padding: 24px 16px;
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }

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

        .trust-item .trust-icon {
            font-size: 2rem;
            color: var(--accent-cyan);
            margin-bottom: 12px;
        }

        .trust-item .trust-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .trust-item .trust-desc {
            font-size: 0.8rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        @media (max-width: 992px) {
            .trust-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
        }

        @media (max-width: 520px) {
            .trust-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .trust-item {
                padding: 18px 14px;
            }
        }

        /* ========== VERTICAL FEED (Shorts) ========== */
        .shorts-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .short-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 9 / 14;
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            cursor: pointer;
            display: block;
        }

        .short-card:hover {
            transform: translateY(-6px);
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow-hover);
        }

        .short-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .short-card:hover img {
            transform: scale(1.05);
        }

        .short-card .short-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 20px 16px;
            background: linear-gradient(180deg, transparent 0%, rgba(8, 5, 15, 0.95) 100%);
        }

        .short-card .short-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(255, 0, 127, 0.9);
            color: white;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 50px;
            letter-spacing: 0.05em;
        }

        .short-card .short-title {
            font-size: 0.88rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .short-card .short-cta {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--accent-cyan);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        @media (max-width: 992px) {
            .shorts-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
        }

        @media (max-width: 520px) {
            .shorts-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .short-card .short-title {
                font-size: 0.78rem;
            }
        }

        /* ========== RANKING LIST ========== */
        .ranking-table {
            width: 100%;
            border-collapse: collapse;
        }

        .ranking-table thead th {
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--text-muted);
            padding: 12px 14px;
            border-bottom: 1px solid var(--border-subtle);
            text-align: left;
        }

        .ranking-table tbody td {
            padding: 14px;
            border-bottom: 1px solid var(--border-subtle);
            font-size: 0.88rem;
            color: var(--text-secondary);
            vertical-align: middle;
        }

        .ranking-table tbody tr {
            transition: background var(--transition-fast);
        }

        .ranking-table tbody tr:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        .ranking-table .rank-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            border-radius: 8px;
            font-weight: 800;
            font-size: 0.8rem;
        }

        .rank-badge.rank-1 {
            background: rgba(255, 215, 0, 0.15);
            color: #FFD700;
        }

        .rank-badge.rank-2 {
            background: rgba(192, 192, 192, 0.15);
            color: #C0C0C0;
        }

        .rank-badge.rank-3 {
            background: rgba(205, 127, 50, 0.15);
            color: #CD7F32;
        }

        .rank-badge.rank-other {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-muted);
        }

        .ranking-table .trend-up {
            color: #00E676;
            font-weight: 600;
        }

        .ranking-table .trend-hot {
            color: var(--accent-pink);
            font-weight: 600;
        }

        .table-responsive-custom {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        @media (max-width: 620px) {
            .ranking-table thead th {
                font-size: 0.65rem;
                padding: 10px 8px;
            }

            .ranking-table tbody td {
                font-size: 0.78rem;
                padding: 10px 8px;
            }

            .ranking-table .rank-badge {
                width: 24px;
                height: 24px;
                font-size: 0.7rem;
            }
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: linear-gradient(180deg, rgba(15, 12, 32, 0.8) 0%, rgba(11, 26, 48, 0.5) 100%);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            transition: color var(--transition-fast);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(0, 240, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 0.8rem;
            transition: transform var(--transition-fast);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== CTA BANNER ========== */
        .cta-banner {
            position: relative;
            background-image: 
                linear-gradient(135deg, rgba(0, 240, 255, 0.15) 0%, rgba(204, 255, 0, 0.1) 50%, rgba(255, 0, 127, 0.12) 100%),
                url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            border-radius: var(--radius-lg);
            padding: 50px 40px;
            border: 1px solid var(--border-glow);
            overflow: hidden;
            text-align: center;
        }

        .cta-banner .cta-title {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .cta-banner .cta-desc {
            font-size: 0.95rem;
            color: var(--text-secondary);
            max-width: 550px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }

        @media (max-width: 520px) {
            .cta-banner {
                padding: 32px 20px;
                border-radius: var(--radius-md);
            }

            .cta-banner .cta-title {
                font-size: 1.3rem;
            }

            .cta-banner .cta-desc {
                font-size: 0.85rem;
            }
        }

        /* ========== FOOTER ========== */
        .footer-custom {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-subtle);
            padding: 50px 0 24px;
            position: relative;
        }

        .footer-custom::before {
            content: '';
            position: absolute;
            top: -1px;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--accent-cyan), var(--accent-lime), transparent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 35px;
        }

        .footer-brand .footer-logo {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand .footer-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.65;
        }

        .footer-col .footer-col-title {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-primary);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 16px;
        }

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

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

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

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

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
            text-align: center;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .footer-bottom .footer-domain {
            color: var(--accent-cyan);
            font-weight: 600;
        }

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .footer-custom {
                padding: 35px 0 18px;
            }
        }

        /* ========== FAB (Floating Action Button) ========== */
        .fab-custom {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 1060;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(8, 5, 15, 0.85);
            backdrop-filter: blur(15px);
            -webkit-backdrop-filter: blur(15px);
            border: 2px solid transparent;
            background-image: 
                linear-gradient(rgba(8, 5, 15, 0.85), rgba(8, 5, 15, 0.85)),
                linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition-fast);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.35);
            animation: fabBreath 3s ease-in-out infinite;
        }

        @keyframes fabBreath {
            0%, 100% { opacity: 0.7; box-shadow: 0 0 15px rgba(0, 240, 255, 0.25); }
            50% { opacity: 1; box-shadow: 0 0 30px rgba(0, 240, 255, 0.55); }
        }

        .fab-custom:hover {
            transform: scale(1.1);
            opacity: 1;
            box-shadow: 0 0 45px rgba(0, 240, 255, 0.7);
            animation: none;
        }

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

        .fab-custom .fab-icon {
            font-size: 1.4rem;
            color: var(--accent-cyan);
            transition: color var(--transition-fast);
        }

        .fab-custom:hover .fab-icon {
            color: var(--accent-lime);
            animation: fabSpin 0.5s ease;
        }

        @keyframes fabSpin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .fab-custom .fab-notification {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent-pink);
            border: 2px solid var(--bg-deep);
            animation: pulse 1.8s infinite;
        }

        @media (max-width: 520px) {
            .fab-custom {
                width: 48px;
                height: 48px;
                left: 12px;
                bottom: 80px;
            }

            .fab-custom .fab-icon {
                font-size: 1.2rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary-deep: #0F0C20;
            --primary-ocean: #0B1A30;
            --accent-neon: #CCFF00;
            --accent-cyan: #00F0FF;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --glass-border: rgba(204, 255, 0, 0.18);
            --glass-bg: rgba(15, 12, 32, 0.72);
            --radius-lg: 26px;
            --radius-md: 18px;
            --radius-sm: 12px;
            --shadow-neon: 0 0 18px rgba(0, 240, 255, 0.25);
            --shadow-lift: 0 18px 40px rgba(0, 0, 0, 0.45);
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            background: var(--primary-deep);
            color: var(--text-white);
            font-family: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button, input {
            font-family: inherit;
        }
        .container-custom {
            width: min(1180px, 92%);
            margin: 0 auto;
        }
        /* NAVBAR */
        .navbar-custom {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(11, 10, 26, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--glass-border);
            padding: 0.8rem 0;
        }
        .navbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.2rem;
            flex-wrap: wrap;
        }
        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            font-weight: 700;
            font-size: 1.1rem;
            color: #fff;
            letter-spacing: -0.02em;
            line-height: 1.2;
            max-width: 420px;
        }
        .brand-icon {
            width: 44px;
            height: 44px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(204,255,0,0.18), rgba(0,240,255,0.15));
            border: 1px solid var(--glass-border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-neon);
            font-size: 1.5rem;
            flex-shrink: 0;
        }
        .navbar-toggler-custom {
            background: rgba(204,255,0,0.08);
            border: 1px solid var(--glass-border);
            color: #fff;
            width: 46px;
            height: 46px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .navbar-toggler-custom:hover {
            background: rgba(204,255,0,0.2);
            border-color: var(--accent-neon);
        }
        .navbar-nav-custom {
            display: flex;
            list-style: none;
            gap: 1.6rem;
            margin: 0;
            padding: 0;
            align-items: center;
        }
        .navbar-nav-custom a {
            color: var(--text-silver);
            font-weight: 500;
            font-size: 0.98rem;
            padding: 0.5rem 0.2rem;
            position: relative;
        }
        .navbar-nav-custom a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -4px;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--accent-neon), var(--accent-cyan));
            transition: var(--transition);
            border-radius: 2px;
        }
        .navbar-nav-custom a:hover,
        .navbar-nav-custom a.active {
            color: #fff;
        }
        .navbar-nav-custom a:hover::after,
        .navbar-nav-custom a.active::after {
            width: 100%;
        }
        .navbar-actions {
            display: flex;
            gap: 0.7rem;
            align-items: center;
        }
        .btn-login-text {
            background: transparent;
            border: none;
            color: #fff;
            font-weight: 500;
            padding: 0.6rem 0.8rem;
            cursor: pointer;
            transition: var(--transition);
            font-size: 0.95rem;
        }
        .btn-login-text:hover {
            color: var(--accent-neon);
        }
        .btn-signup-solid {
            background: linear-gradient(135deg, var(--accent-neon), #a6ff00);
            border: none;
            color: #0F0C20;
            font-weight: 700;
            padding: 0.65rem 1.5rem;
            border-radius: 12px;
            cursor: pointer;
            transition: var(--transition);
            font-size: 0.95rem;
            box-shadow: 0 4px 14px rgba(204,255,0,0.25);
        }
        .btn-signup-solid:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(204,255,0,0.4);
        }
        /* HERO */
        .hero-custom {
            position: relative;
            padding: 5rem 0 4rem;
            background: radial-gradient(ellipse at 20% 30%, rgba(0,240,255,0.08) 0%, transparent 55%),
                        radial-gradient(ellipse at 80% 20%, rgba(204,255,0,0.07) 0%, transparent 55%),
                        linear-gradient(180deg, #0B1A30 0%, #0F0C20 100%);
            border-bottom: 1px solid rgba(204,255,0,0.1);
            overflow: hidden;
        }
        .hero-custom::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(0,240,255,0.12), transparent 70%);
            border-radius: 50%;
            filter: blur(40px);
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: rgba(204,255,0,0.1);
            border: 1px solid rgba(204,255,0,0.25);
            padding: 0.45rem 1.2rem;
            border-radius: 40px;
            color: var(--accent-neon);
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 1.5rem;
        }
        .hero-title {
            font-size: 2.9rem;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.03em;
            margin-bottom: 1.2rem;
            color: #fff;
            max-width: 720px;
        }
        .hero-title .highlight {
            background: linear-gradient(90deg, var(--accent-neon), var(--accent-cyan));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-silver);
            max-width: 640px;
            margin-bottom: 2.2rem;
            line-height: 1.65;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .btn-primary-neon {
            background: linear-gradient(135deg, var(--accent-neon), #a6ff00);
            color: #0F0C20;
            font-weight: 700;
            padding: 0.9rem 2.2rem;
            border-radius: 14px;
            border: none;
            cursor: pointer;
            font-size: 1.05rem;
            box-shadow: 0 8px 24px rgba(204,255,0,0.3);
            transition: var(--transition);
        }
        .btn-primary-neon:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 32px rgba(204,255,0,0.45);
        }
        .btn-outline-neon {
            background: transparent;
            border: 1.5px solid var(--accent-cyan);
            color: var(--accent-cyan);
            font-weight: 600;
            padding: 0.9rem 2rem;
            border-radius: 14px;
            cursor: pointer;
            transition: var(--transition);
            font-size: 1.05rem;
        }
        .btn-outline-neon:hover {
            background: rgba(0,240,255,0.1);
            box-shadow: 0 0 20px rgba(0,240,255,0.25);
        }
        /* SECTIONS */
        .section-custom {
            padding: 4.5rem 0;
        }
        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            margin-bottom: 0.8rem;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
            color: #fff;
            line-height: 1.2;
        }
        .section-desc {
            color: var(--text-silver);
            font-size: 1.05rem;
            max-width: 680px;
            line-height: 1.6;
        }
        .card-glass {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            padding: 2rem;
            backdrop-filter: blur(12px);
            transition: var(--transition);
            height: 100%;
        }
        .card-glass:hover {
            border-color: rgba(0,240,255,0.4);
            box-shadow: var(--shadow-neon);
            transform: translateY(-4px);
        }
        .card-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(0,240,255,0.1);
            border: 1px solid rgba(0,240,255,0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.5rem;
            margin-bottom: 1.2rem;
        }
        .card-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.7rem;
            color: #fff;
        }
        .card-text {
            color: var(--text-silver);
            font-size: 0.98rem;
            line-height: 1.6;
        }
        /* STEPS */
        .step-flow {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        .step-item {
            display: flex;
            gap: 1.2rem;
            align-items: flex-start;
            padding: 1.5rem;
            background: rgba(11,26,48,0.5);
            border-radius: var(--radius-md);
            border-left: 4px solid var(--accent-neon);
            transition: var(--transition);
        }
        .step-item:hover {
            background: rgba(11,26,48,0.8);
            border-left-color: var(--accent-cyan);
        }
        .step-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-neon);
            line-height: 1;
            min-width: 48px;
        }
        .step-content h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
            color: #fff;
        }
        .step-content p {
            color: var(--text-silver);
            margin-bottom: 0;
            font-size: 0.98rem;
        }
        /* PAYMENT GRID */
        .payment-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.2rem;
        }
        .payment-card {
            background: rgba(11,26,48,0.6);
            border: 1px solid rgba(204,255,0,0.15);
            border-radius: var(--radius-sm);
            padding: 1.5rem 1rem;
            text-align: center;
            transition: var(--transition);
        }
        .payment-card:hover {
            border-color: var(--accent-neon);
            box-shadow: 0 0 20px rgba(204,255,0,0.15);
            transform: translateY(-3px);
        }
        .payment-card i {
            font-size: 2rem;
            color: var(--accent-neon);
            margin-bottom: 0.8rem;
        }
        .payment-card span {
            display: block;
            font-weight: 600;
            font-size: 0.95rem;
        }
        /* FAQ */
        .faq-item {
            background: rgba(11,26,48,0.5);
            border: 1px solid rgba(204,255,0,0.12);
            border-radius: var(--radius-sm);
            margin-bottom: 1rem;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(0,240,255,0.3);
        }
        .faq-question {
            padding: 1.2rem 1.5rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            color: #fff;
            font-size: 1.05rem;
        }
        .faq-answer {
            padding: 0 1.5rem 1.2rem;
            color: var(--text-silver);
            display: none;
            font-size: 0.98rem;
            line-height: 1.6;
        }
        .faq-item.active .faq-answer {
            display: block;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--accent-neon);
        }
        .faq-question i {
            transition: var(--transition);
            color: var(--accent-cyan);
        }
        /* CTA */
        .cta-panel {
            background: linear-gradient(135deg, rgba(204,255,0,0.08), rgba(0,240,255,0.08));
            border: 1px solid rgba(204,255,0,0.25);
            border-radius: var(--radius-lg);
            padding: 3rem 2rem;
            text-align: center;
        }
        .cta-panel h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 1rem;
            color: #fff;
        }
        .cta-panel p {
            color: var(--text-silver);
            margin-bottom: 2rem;
            font-size: 1.05rem;
        }
        /* FAB */
        .fab-custom {
            position: fixed;
            left: 1.2rem;
            bottom: 6rem;
            z-index: 1050;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(15, 12, 32, 0.8);
            backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(15,12,32,0.85), rgba(15,12,32,0.85)), linear-gradient(135deg, #CCFF00, #00F0FF);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.5rem;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 0 18px rgba(0,240,255,0.35);
            animation: fabBreath 3s ease-in-out infinite;
        }
        .fab-custom:hover {
            transform: scale(1.12);
            box-shadow: 0 0 30px rgba(0,240,255,0.6);
            color: var(--accent-neon);
        }
        .fab-custom::after {
            content: '';
            position: absolute;
            top: -4px;
            right: -4px;
            width: 16px;
            height: 16px;
            background: #ff3b5c;
            border-radius: 50%;
            border: 2px solid #0F0C20;
            animation: blinkDot 1.6s ease-in-out infinite;
        }
        @keyframes fabBreath {
            0%, 100% { opacity: 0.6; }
            50% { opacity: 1; }
        }
        @keyframes blinkDot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.2; }
        }
        /* FOOTER */
        .footer-custom {
            background: #0A0818;
            border-top: 1px solid rgba(204,255,0,0.12);
            padding: 3.5rem 0 2rem;
            margin-top: 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            font-weight: 700;
            font-size: 1.1rem;
            color: #fff;
            margin-bottom: 1rem;
        }
        .footer-logo i {
            color: var(--accent-neon);
            font-size: 1.6rem;
        }
        .footer-desc {
            color: var(--text-silver);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        .footer-col-title {
            font-weight: 700;
            color: #fff;
            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: 0.93rem;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent-neon);
        }
        .footer-bottom {
            border-top: 1px solid rgba(204,255,255,0.08);
            padding-top: 1.5rem;
            text-align: center;
            color: var(--text-silver);
            font-size: 0.88rem;
        }
        .footer-domain {
            color: var(--accent-cyan);
        }
        /* RESPONSIVE */
        @media (max-width: 1024px) {
            .hero-title { font-size: 2.3rem; }
            .payment-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .navbar-inner { flex-wrap: wrap; }
            .navbar-nav-custom {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.8rem;
                width: 100%;
                padding: 1rem 0;
                display: none;
            }
            .navbar-nav-custom.open {
                display: flex;
            }
            .navbar-actions {
                margin-left: auto;
            }
            .hero-title { font-size: 1.9rem; }
            .section-title { font-size: 1.6rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
        }
        @media (max-width: 520px) {
            .hero-title { font-size: 1.6rem; }
            .hero-actions { flex-direction: column; }
            .btn-primary-neon, .btn-outline-neon { width: 100%; text-align: center; }
            .payment-grid { grid-template-columns: 1fr 1fr; gap: 0.8rem; }
            .step-item { flex-direction: column; }
            .navbar-brand-custom { font-size: 0.9rem; max-width: 260px; }
        }

/* roulang page: article */
:root {
            --bg-primary: #0B0B0B;
            --bg-secondary: #121212;
            --bg-card: #161616;
            --bg-elevated: #1C1C1E;
            --accent-primary: #FF4500;
            --accent-secondary: #FF0000;
            --accent-warm: #FF9F00;
            --text-primary: #FFFFFF;
            --text-secondary: #CCCCCC;
            --text-muted: #9E9E9E;
            --border-dark: #2A2A2A;
            --border-glow: rgba(255, 69, 0, 0.35);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 20px rgba(255, 69, 0, 0.25);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --font-body: 'Inter', 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

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

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

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

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

        button {
            border: none;
            background: none;
            cursor: pointer;
            font-family: inherit;
            font-size: inherit;
            transition: all var(--transition-base);
        }

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* Header / Navigation */
        .navbar-custom {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 11, 11, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-dark);
            padding: 14px 0;
            transition: all var(--transition-smooth);
        }

        .navbar-custom.scrolled {
            background: rgba(11, 11, 11, 0.98);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.6);
            padding: 10px 0;
        }

        .navbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
            min-width: 0;
        }

        .brand-icon {
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.25rem;
            flex-shrink: 0;
            box-shadow: 0 4px 16px rgba(255, 69, 0, 0.3);
        }

        .brand-text {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
            max-width: 220px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .navbar-nav-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex: 1;
            justify-content: center;
        }

        .navbar-nav-custom li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 999px;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

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

        .navbar-nav-custom li a.active {
            color: var(--text-primary);
            background: rgba(255, 69, 0, 0.15);
            font-weight: 600;
        }

        .navbar-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn-login-text {
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: 999px;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

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

        .btn-signup-solid {
            padding: 10px 24px;
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            border-radius: 999px;
            transition: all var(--transition-base);
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(255, 69, 0, 0.35);
        }

        .btn-signup-solid:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(255, 69, 0, 0.5);
            color: #fff;
        }

        .navbar-toggler-custom {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            background: var(--bg-elevated);
            color: var(--text-primary);
            font-size: 1.25rem;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border-dark);
            transition: all var(--transition-base);
            flex-shrink: 0;
        }

        .navbar-toggler-custom:hover {
            border-color: var(--accent-primary);
            color: var(--accent-primary);
        }

        /* Article Hero */
        .article-hero {
            padding: 140px 0 60px;
            background: linear-gradient(180deg, rgba(255, 69, 0, 0.06) 0%, transparent 100%);
            border-bottom: 1px solid var(--border-dark);
            position: relative;
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 69, 0, 0.12) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

        .article-hero-inner {
            position: relative;
            z-index: 1;
            max-width: 850px;
        }

        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .article-breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-base);
        }

        .article-breadcrumb a:hover {
            color: var(--accent-primary);
        }

        .article-breadcrumb .separator {
            color: var(--accent-primary);
        }

        .article-category-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background: rgba(255, 69, 0, 0.15);
            color: var(--accent-primary);
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            text-transform: uppercase;
            margin-bottom: 16px;
            border: 1px solid rgba(255, 69, 0, 0.25);
        }

        .article-category-tag i {
            font-size: 0.7rem;
        }

        .article-title {
            font-size: clamp(1.75rem, 4vw, 2.75rem);
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            color: var(--text-muted);
            font-size: 0.9rem;
            padding-bottom: 24px;
            border-bottom: 1px solid var(--border-dark);
        }

        .article-meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .article-meta-item i {
            color: var(--accent-primary);
            font-size: 0.9rem;
        }

        .article-meta-item strong {
            color: var(--text-secondary);
            font-weight: 600;
        }

        /* Article Content */
        .article-content-wrapper {
            padding: 50px 0 70px;
        }

        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 320px;
            gap: 40px;
            align-items: start;
        }

        .article-main {
            min-width: 0;
        }

        .article-body {
            font-size: 1.05rem;
            line-height: 1.75;
            color: var(--text-secondary);
        }

        .article-body h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-top: 40px;
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }

        .article-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-top: 30px;
            margin-bottom: 12px;
        }

        .article-body p {
            margin-bottom: 16px;
        }

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

        .article-body li {
            margin-bottom: 8px;
        }

        .article-body img {
            border-radius: var(--radius-lg);
            margin: 30px 0;
            width: 100%;
            box-shadow: var(--shadow-card);
        }

        .article-body blockquote {
            border-left: 4px solid var(--accent-primary);
            padding: 16px 24px;
            margin: 24px 0;
            background: rgba(255, 69, 0, 0.06);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            font-style: italic;
            color: var(--text-primary);
        }

        .article-body a {
            color: var(--accent-primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body a:hover {
            color: #FF6B2B;
        }

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

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 0.95rem;
        }

        .article-body table th {
            background: var(--bg-elevated);
            color: var(--text-primary);
            font-weight: 600;
            padding: 12px 16px;
            text-align: left;
            border-bottom: 2px solid var(--accent-primary);
        }

        .article-body table td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border-dark);
            color: var(--text-secondary);
        }

        .article-body table tr:hover td {
            background: rgba(255, 69, 0, 0.04);
        }

        /* Article Not Found */
        .article-not-found {
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-dark);
        }

        .article-not-found i {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            display: block;
        }

        .article-not-found h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .btn-back-home {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            border-radius: 999px;
            transition: all var(--transition-base);
            box-shadow: 0 4px 16px rgba(255, 69, 0, 0.35);
        }

        .btn-back-home:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(255, 69, 0, 0.5);
            color: #fff;
        }

        /* Sidebar */
        .article-sidebar {
            position: sticky;
            top: 100px;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .sidebar-card {
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: 24px;
        }

        .sidebar-card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .sidebar-card-title i {
            color: var(--accent-primary);
            font-size: 1rem;
        }

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

        .sidebar-list li {
            margin-bottom: 10px;
        }

        .sidebar-list li:last-child {
            margin-bottom: 0;
        }

        .sidebar-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
        }

        .sidebar-list a:hover {
            background: rgba(255, 69, 0, 0.08);
            color: var(--accent-primary);
        }

        .sidebar-list a i {
            font-size: 0.75rem;
            color: var(--accent-primary);
        }

        .promo-mini-card {
            background: linear-gradient(135deg, rgba(255, 69, 0, 0.15), rgba(255, 0, 0, 0.1));
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: 24px;
            text-align: center;
        }

        .promo-mini-card .promo-icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 16px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 69, 0, 0.4);
        }

        .promo-mini-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .promo-mini-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }

        .promo-code-display {
            display: inline-block;
            padding: 8px 20px;
            background: rgba(255, 69, 0, 0.2);
            border: 2px dashed var(--accent-primary);
            border-radius: var(--radius-sm);
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--accent-primary);
            letter-spacing: 2px;
            margin-bottom: 16px;
        }

        .btn-promo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            border-radius: 999px;
            transition: all var(--transition-base);
            box-shadow: 0 4px 16px rgba(255, 69, 0, 0.35);
            width: 100%;
            justify-content: center;
        }

        .btn-promo:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(255, 69, 0, 0.5);
            color: #fff;
        }

        /* CTA Section */
        .cta-section {
            padding: 60px 0 80px;
            background: linear-gradient(180deg, transparent 0%, rgba(255, 69, 0, 0.04) 100%);
            border-top: 1px solid var(--border-dark);
        }

        .cta-panel {
            background: linear-gradient(135deg, var(--bg-elevated) 0%, var(--bg-card) 100%);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-xl);
            padding: 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .cta-panel::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at center, rgba(255, 69, 0, 0.08) 0%, transparent 60%);
            pointer-events: none;
        }

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

        .cta-panel h2 {
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .cta-panel p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: 28px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-buttons {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-primary-glow {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            border-radius: 999px;
            transition: all var(--transition-base);
            box-shadow: 0 4px 20px rgba(255, 69, 0, 0.4);
        }

        .btn-primary-glow:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 32px rgba(255, 69, 0, 0.55);
            color: #fff;
        }

        .btn-secondary-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            border: 1px solid var(--border-dark);
            border-radius: 999px;
            transition: all var(--transition-base);
        }

        .btn-secondary-outline:hover {
            border-color: var(--accent-primary);
            color: var(--accent-primary);
            background: rgba(255, 69, 0, 0.06);
        }

        /* Footer */
        .footer-custom {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-dark);
            padding: 60px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
        }

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

        .footer-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            max-width: 360px;
        }

        .footer-col-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

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

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

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

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

        .footer-bottom {
            padding-top: 24px;
            border-top: 1px solid var(--border-dark);
            text-align: center;
        }

        .footer-bottom p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }

        .footer-domain {
            color: var(--accent-primary);
            font-weight: 600;
        }

        /* FAB */
        .fab-left {
            position: fixed;
            left: 24px;
            bottom: 96px;
            z-index: 900;
        }

        .fab-main {
            width: 56px;
            height: 56px;
            background: rgba(11, 11, 11, 0.7);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-primary);
            font-size: 1.5rem;
            position: relative;
            transition: all var(--transition-base);
            box-shadow: 0 0 15px rgba(255, 69, 0, 0.4);
            opacity: 0.6;
            animation: fab-breathe 3s ease-in-out infinite;
        }

        .fab-main::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-warm));
            z-index: -1;
            animation: fab-rotate-border 4s linear infinite;
        }

        .fab-main:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(255, 69, 0, 0.6);
        }

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

        .fab-notification {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            background: #FF0000;
            border-radius: 50%;
            border: 2px solid #0B0B0B;
            animation: fab-notif-blink 1.5s ease-in-out infinite;
        }

        @keyframes fab-breathe {
            0%, 100% { opacity: 0.6; }
            50% { opacity: 0.85; }
        }

        @keyframes fab-rotate-border {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: minmax(0, 1fr);
            }

            .article-sidebar {
                position: static;
                display: grid;
                grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
                gap: 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            .navbar-toggler-custom {
                display: flex;
            }

            .navbar-nav-custom {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(11, 11, 11, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border-dark);
                transform: translateY(-120%);
                transition: transform var(--transition-smooth);
                align-items: stretch;
                z-index: 999;
            }

            .navbar-nav-custom.open {
                transform: translateY(0);
            }

            .navbar-nav-custom li a {
                padding: 12px 16px;
                font-size: 1rem;
                width: 100%;
            }

            .navbar-actions {
                margin-left: auto;
            }

            .btn-login-text {
                padding: 8px 12px;
                font-size: 0.85rem;
            }

            .btn-signup-solid {
                padding: 8px 18px;
                font-size: 0.85rem;
            }

            .article-hero {
                padding: 120px 0 40px;
            }

            .article-title {
                font-size: 1.5rem;
            }

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

            .article-meta {
                gap: 12px;
                font-size: 0.85rem;
            }

            .cta-panel {
                padding: 32px 20px;
            }

            .cta-buttons {
                flex-direction: column;
                width: 100%;
            }

            .btn-primary-glow,
            .btn-secondary-outline {
                width: 100%;
                justify-content: center;
            }

            .fab-left {
                left: 16px;
                bottom: 80px;
            }

            .fab-main {
                width: 48px;
                height: 48px;
                font-size: 1.25rem;
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }

            .brand-text {
                font-size: 0.8rem;
                max-width: 140px;
            }

            .brand-icon {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }

            .navbar-custom {
                padding: 10px 0;
            }

            .navbar-inner {
                gap: 12px;
            }

            .btn-login-text {
                display: none;
            }

            .article-title {
                font-size: 1.35rem;
            }

            .article-body {
                font-size: 1rem;
            }

            .article-body h2 {
                font-size: 1.3rem;
            }

            .article-body h3 {
                font-size: 1.1rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

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

/* roulang page: category2 */
:root {
            --bg-primary: #08090F;
            --bg-secondary: #0D111E;
            --bg-card: rgba(13, 17, 30, 0.55);
            --bg-card-hover: rgba(18, 22, 40, 0.75);
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --accent-purple: #7B2FFF;
            --accent-violet: #9B4DFF;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #8899B4;
            --border-glass: rgba(0, 240, 255, 0.18);
            --border-glass-strong: rgba(0, 240, 255, 0.35);
            --border-purple: rgba(123, 47, 255, 0.25);
            --glow-cyan: 0 0 18px rgba(0, 240, 255, 0.35);
            --glow-cyan-strong: 0 0 30px rgba(0, 240, 255, 0.55);
            --glow-purple: 0 0 18px rgba(123, 47, 255, 0.35);
            --glow-purple-strong: 0 0 30px rgba(123, 47, 255, 0.5);
            --glow-mixed: 0 0 24px rgba(0, 240, 255, 0.3), 0 0 24px rgba(123, 47, 255, 0.25);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
            --shadow-elevated: 0 8px 40px rgba(0, 0, 0, 0.55);
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --font-body: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-body);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            min-height: 100vh;
            background-image:
                radial-gradient(ellipse at 20% 15%, rgba(0, 82, 255, 0.06) 0%, transparent 55%),
                radial-gradient(ellipse at 75% 30%, rgba(0, 240, 255, 0.05) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 60%, rgba(123, 47, 255, 0.04) 0%, transparent 50%),
                radial-gradient(ellipse at 85% 80%, rgba(0, 82, 255, 0.04) 0%, transparent 45%);
            background-attachment: fixed;
        }

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

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

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

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

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (max-width: 768px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ========== NAVBAR ========== */
        .navbar-custom {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(8, 9, 15, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-glass);
            padding: 0;
            transition: background var(--transition-smooth), border-color var(--transition-smooth);
        }

        .navbar-custom .container-custom {
            padding-top: 0;
            padding-bottom: 0;
        }

        .navbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 62px;
            gap: 16px;
        }

        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none;
            color: var(--text-primary);
            transition: opacity var(--transition-fast);
        }

        .navbar-brand-custom:hover {
            opacity: 0.85;
        }

        .brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 50%, var(--accent-purple) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            box-shadow: var(--glow-cyan);
            flex-shrink: 0;
        }

        .brand-text {
            font-weight: 700;
            font-size: 0.92rem;
            line-height: 1.2;
            max-width: 280px;
            color: var(--text-primary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        @media (max-width: 992px) {
            .brand-text {
                font-size: 0.78rem;
                max-width: 180px;
            }
            .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }
        }

        @media (max-width: 520px) {
            .brand-text {
                font-size: 0.7rem;
                max-width: 130px;
            }
            .brand-icon {
                width: 30px;
                height: 30px;
                font-size: 13px;
            }
        }

        .navbar-nav-custom {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .navbar-nav-custom li a {
            display: inline-block;
            padding: 8px 14px;
            border-radius: 20px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            border: 1px solid transparent;
        }

        .navbar-nav-custom li a:hover {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.06);
            border-color: var(--border-glass);
        }

        .navbar-nav-custom li a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.1);
            border-color: var(--border-glass-strong);
            box-shadow: var(--glow-cyan);
            font-weight: 600;
        }

        .navbar-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .btn-login-text {
            background: transparent;
            color: var(--text-secondary);
            font-size: 0.88rem;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 20px;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

        .btn-login-text:hover {
            color: var(--accent-cyan);
            border-color: var(--border-glass);
            background: rgba(0, 240, 255, 0.04);
        }

        .btn-signup-solid {
            background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 60%, var(--accent-purple) 100%);
            color: #fff;
            font-size: 0.88rem;
            font-weight: 600;
            padding: 9px 20px;
            border-radius: 22px;
            transition: all var(--transition-smooth);
            border: none;
            box-shadow: var(--glow-cyan);
            position: relative;
            overflow: hidden;
        }

        .btn-signup-solid::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.15) 50%, transparent 100%);
            transform: translateX(-100%);
            transition: transform 0.5s ease;
        }

        .btn-signup-solid:hover {
            box-shadow: var(--glow-cyan-strong);
            transform: translateY(-1px);
        }

        .btn-signup-solid:hover::after {
            transform: translateX(100%);
        }

        .btn-signup-solid:active {
            transform: scale(0.96);
        }

        .navbar-toggler-custom {
            display: none;
            background: none;
            border: 1px solid var(--border-glass);
            color: var(--text-primary);
            font-size: 1.3rem;
            padding: 6px 10px;
            border-radius: 8px;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .navbar-toggler-custom:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            box-shadow: var(--glow-cyan);
        }

        @media (max-width: 992px) {
            .navbar-nav-custom {
                display: none;
                position: absolute;
                top: 62px;
                left: 0;
                right: 0;
                background: rgba(8, 9, 15, 0.95);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 1px solid var(--border-glass);
                z-index: 999;
            }

            .navbar-nav-custom.show {
                display: flex;
            }

            .navbar-nav-custom li a {
                width: 100%;
                padding: 10px 16px;
                border-radius: 10px;
                font-size: 0.9rem;
            }

            .navbar-toggler-custom {
                display: block;
            }

            .navbar-actions {
                gap: 6px;
            }

            .btn-login-text,
            .btn-signup-solid {
                font-size: 0.8rem;
                padding: 7px 14px;
            }
        }

        @media (max-width: 520px) {
            .navbar-inner {
                height: 54px;
            }
            .navbar-nav-custom {
                top: 54px;
            }
            .btn-login-text {
                font-size: 0.75rem;
                padding: 6px 10px;
            }
            .btn-signup-solid {
                font-size: 0.75rem;
                padding: 7px 12px;
            }
        }

        /* ========== HERO ========== */
        .hero-strategy {
            padding-top: 100px;
            padding-bottom: 60px;
            position: relative;
            background: linear-gradient(180deg, rgba(8, 9, 15, 0.3) 0%, rgba(13, 17, 30, 0.7) 40%, var(--bg-primary) 100%),
                url('/assets/images/backpic/back-1.jpg') center center / cover no-repeat;
            background-attachment: fixed;
            min-height: 520px;
            display: flex;
            align-items: center;
        }

        .hero-strategy::before {
            content: '';
            position: absolute;
            inset: 0;
            background:
                radial-gradient(ellipse at 30% 40%, rgba(0, 240, 255, 0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(123, 47, 255, 0.07) 0%, transparent 55%);
            pointer-events: none;
        }

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

        .hero-strategy-content {
            max-width: 680px;
        }

        .hero-strategy-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid var(--border-glass-strong);
            color: var(--accent-cyan);
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .hero-strategy h1 {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            color: var(--text-primary);
            background: linear-gradient(135deg, #FFFFFF 0%, #E0F0FF 40%, #A0E0FF 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-strategy-subtitle {
            font-size: 1.08rem;
            color: var(--text-secondary);
            margin-bottom: 28px;
            line-height: 1.6;
            max-width: 540px;
        }

        .hero-search-wrap {
            display: flex;
            gap: 10px;
            max-width: 520px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .hero-search-input {
            flex: 1;
            min-width: 220px;
            padding: 13px 18px;
            border-radius: 28px;
            border: 1px solid var(--border-glass-strong);
            background: rgba(13, 17, 30, 0.7);
            backdrop-filter: blur(8px);
            color: var(--text-primary);
            font-size: 0.95rem;
            outline: none;
            transition: all var(--transition-smooth);
            font-family: var(--font-body);
        }

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

        .hero-search-input:focus {
            border-color: var(--accent-cyan);
            box-shadow: var(--glow-cyan);
            background: rgba(13, 17, 30, 0.9);
        }

        .hero-search-btn {
            padding: 13px 28px;
            border-radius: 28px;
            background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 50%, var(--accent-purple) 100%);
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-smooth);
            box-shadow: var(--glow-cyan);
            white-space: nowrap;
        }

        .hero-search-btn:hover {
            box-shadow: var(--glow-cyan-strong);
            transform: translateY(-2px);
        }

        .hero-search-btn:active {
            transform: scale(0.95);
        }

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

        .hero-tag {
            padding: 6px 14px;
            border-radius: 16px;
            font-size: 0.8rem;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .hero-tag:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.06);
            box-shadow: var(--glow-cyan);
        }

        @media (max-width: 768px) {
            .hero-strategy {
                padding-top: 80px;
                padding-bottom: 40px;
                min-height: auto;
                background-attachment: scroll;
            }
            .hero-strategy h1 {
                font-size: 1.8rem;
            }
            .hero-strategy-subtitle {
                font-size: 0.95rem;
            }
            .hero-search-input {
                font-size: 0.88rem;
                padding: 11px 16px;
            }
            .hero-search-btn {
                font-size: 0.88rem;
                padding: 11px 20px;
            }
        }

        @media (max-width: 520px) {
            .hero-strategy {
                padding-top: 70px;
                padding-bottom: 30px;
            }
            .hero-strategy h1 {
                font-size: 1.45rem;
            }
            .hero-strategy-subtitle {
                font-size: 0.85rem;
            }
            .hero-search-wrap {
                flex-direction: column;
                gap: 8px;
            }
            .hero-search-btn {
                width: 100%;
                text-align: center;
            }
        }

        /* ========== SECTION STYLES ========== */
        .section-custom {
            padding: 60px 0;
        }

        .section-custom-alt {
            padding: 60px 0;
            background: rgba(13, 17, 30, 0.3);
            border-top: 1px solid rgba(0, 240, 255, 0.06);
            border-bottom: 1px solid rgba(0, 240, 255, 0.06);
        }

        .section-label {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 16px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.8px;
            text-transform: uppercase;
            background: rgba(123, 47, 255, 0.12);
            border: 1px solid var(--border-purple);
            color: var(--accent-violet);
            margin-bottom: 12px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
            line-height: 1.25;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.6;
            max-width: 620px;
        }

        @media (max-width: 768px) {
            .section-custom,
            .section-custom-alt {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-desc {
                font-size: 0.9rem;
            }
        }

        /* ========== STRATEGY CATEGORY CARDS ========== */
        .strategy-cat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 20px;
        }

        .strategy-cat-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            transition: all var(--transition-smooth);
            cursor: pointer;
            position: relative;
            overflow: hidden;
            text-decoration: none;
            color: inherit;
            display: block;
        }

        .strategy-cat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent 0%, var(--accent-cyan) 40%, var(--accent-purple) 70%, transparent 100%);
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }

        .strategy-cat-card:hover {
            border-color: var(--border-glass-strong);
            box-shadow: var(--glow-mixed);
            transform: translateY(-4px);
            background: var(--bg-card-hover);
        }

        .strategy-cat-card:hover::before {
            opacity: 1;
        }

        .strategy-cat-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.15) 0%, rgba(123, 47, 255, 0.15) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-cyan);
            margin-bottom: 14px;
            border: 1px solid rgba(0, 240, 255, 0.2);
            transition: all var(--transition-smooth);
        }

        .strategy-cat-card:hover .strategy-cat-icon {
            box-shadow: var(--glow-cyan);
            color: #fff;
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.25) 0%, rgba(123, 47, 255, 0.25) 100%);
        }

        .strategy-cat-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .strategy-cat-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.5;
            margin-bottom: 12px;
        }

        .strategy-cat-arrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-cyan);
            transition: gap var(--transition-fast);
        }

        .strategy-cat-card:hover .strategy-cat-arrow {
            gap: 10px;
        }

        @media (max-width: 520px) {
            .strategy-cat-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .strategy-cat-card {
                padding: 18px 16px;
            }
        }

        /* ========== STRATEGY LIST ========== */
        .strategy-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .strategy-list-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 20px 22px;
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            transition: all var(--transition-smooth);
            cursor: pointer;
            text-decoration: none;
            color: inherit;
        }

        .strategy-list-item:hover {
            border-color: var(--border-glass-strong);
            box-shadow: var(--glow-mixed);
            background: var(--bg-card-hover);
            transform: translateX(3px);
        }

        .strategy-list-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 60%, var(--accent-purple) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            flex-shrink: 0;
            box-shadow: var(--glow-cyan);
        }

        .strategy-list-body {
            flex: 1;
            min-width: 0;
        }

        .strategy-list-body h4 {
            font-size: 1.02rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text-primary);
        }

        .strategy-list-body p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.5;
        }

        .strategy-list-meta {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 6px;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .strategy-list-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .strategy-list-badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 0.72rem;
            font-weight: 600;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.2);
            color: var(--accent-cyan);
            flex-shrink: 0;
            white-space: nowrap;
        }

        @media (max-width: 768px) {
            .strategy-list-item {
                flex-direction: column;
                gap: 10px;
                padding: 16px;
            }
            .strategy-list-num {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
            }
            .strategy-list-body h4 {
                font-size: 0.95rem;
            }
        }

        /* ========== QUICK START ========== */
        .quickstart-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
            counter-reset: step;
        }

        .quickstart-step {
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            position: relative;
            transition: all var(--transition-smooth);
            counter-increment: step;
        }

        .quickstart-step::after {
            content: counter(step);
            position: absolute;
            top: -14px;
            right: 20px;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-purple) 0%, var(--accent-violet) 100%);
            color: #fff;
            font-weight: 800;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--glow-purple);
        }

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

        .quickstart-step h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .quickstart-step p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.55;
            margin-bottom: 0;
        }

        @media (max-width: 520px) {
            .quickstart-steps {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .quickstart-step {
                padding: 20px 16px;
            }
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            padding: 60px 0;
            text-align: center;
            background: linear-gradient(180deg, rgba(0, 82, 255, 0.06) 0%, rgba(123, 47, 255, 0.06) 50%, transparent 100%);
            border-top: 1px solid rgba(0, 240, 255, 0.08);
            border-bottom: 1px solid rgba(0, 240, 255, 0.08);
        }

        .cta-card {
            max-width: 600px;
            margin: 0 auto;
            padding: 40px 32px;
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            border: 1px solid var(--border-glass-strong);
            border-radius: var(--radius-xl);
            box-shadow: var(--glow-mixed);
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at 30% 50%, rgba(0, 240, 255, 0.06) 0%, transparent 50%),
                radial-gradient(circle at 70% 40%, rgba(123, 47, 255, 0.05) 0%, transparent 50%);
            pointer-events: none;
            animation: ctaGradientShift 8s ease-in-out infinite;
        }

        @keyframes ctaGradientShift {
            0%,
            100% {
                transform: translate(0, 0);
            }
            33% {
                transform: translate(2%, -1%);
            }
            66% {
                transform: translate(-1%, 2%);
            }
        }

        .cta-card>* {
            position: relative;
            z-index: 1;
        }

        .cta-card h2 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .cta-card p {
            font-size: 0.98rem;
            color: var(--text-secondary);
            margin-bottom: 24px;
            line-height: 1.6;
        }

        .cta-btn-primary {
            display: inline-block;
            padding: 14px 36px;
            border-radius: 28px;
            background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 50%, var(--accent-purple) 100%);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-smooth);
            box-shadow: var(--glow-cyan);
            text-decoration: none;
        }

        .cta-btn-primary:hover {
            box-shadow: var(--glow-cyan-strong);
            transform: translateY(-3px);
            color: #fff;
        }

        .cta-btn-primary:active {
            transform: scale(0.95);
        }

        .cta-btn-outline {
            display: inline-block;
            padding: 13px 34px;
            border-radius: 28px;
            background: transparent;
            border: 1px solid var(--border-glass-strong);
            color: var(--accent-cyan);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition-smooth);
            text-decoration: none;
            margin-left: 12px;
        }

        .cta-btn-outline:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--glow-cyan);
            background: rgba(0, 240, 255, 0.06);
            color: var(--accent-cyan);
        }

        @media (max-width: 520px) {
            .cta-card {
                padding: 28px 18px;
            }
            .cta-card h2 {
                font-size: 1.35rem;
            }
            .cta-btn-outline {
                margin-left: 0;
                margin-top: 10px;
                display: block;
            }
            .cta-btn-primary {
                display: block;
                width: 100%;
                text-align: center;
            }
        }

        /* ========== FEEDBACK SECTION ========== */
        .feedback-section {
            padding: 50px 0;
        }

        .feedback-card {
            max-width: 560px;
            margin: 0 auto;
            padding: 30px 24px;
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            text-align: center;
            transition: all var(--transition-smooth);
        }

        .feedback-card:hover {
            border-color: var(--border-glass-strong);
            box-shadow: var(--glow-mixed);
        }

        .feedback-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .feedback-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 18px;
        }

        .feedback-textarea {
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-glass-strong);
            background: rgba(13, 17, 30, 0.6);
            color: var(--text-primary);
            font-size: 0.9rem;
            resize: vertical;
            min-height: 100px;
            outline: none;
            font-family: var(--font-body);
            transition: all var(--transition-smooth);
            margin-bottom: 14px;
        }

        .feedback-textarea:focus {
            border-color: var(--accent-cyan);
            box-shadow: var(--glow-cyan);
        }

        .feedback-textarea::placeholder {
            color: var(--text-muted);
        }

        .feedback-submit {
            padding: 11px 28px;
            border-radius: 22px;
            background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-smooth);
            box-shadow: var(--glow-cyan);
        }

        .feedback-submit:hover {
            box-shadow: var(--glow-cyan-strong);
            transform: translateY(-2px);
        }

        @media (max-width: 520px) {
            .feedback-card {
                padding: 22px 16px;
            }
        }

        /* ========== FAB ========== */
        .fab-cyber {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 52px;
            height: 52px;
            border-radius: 28px;
            background: rgba(8, 9, 15, 0.7);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1.5px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition-smooth);
            box-shadow: 0 0 16px rgba(0, 240, 255, 0.3), 0 0 8px rgba(123, 47, 255, 0.2);
            opacity: 0.65;
            animation: fabFloat 3s ease-in-out infinite;
            position: relative;
        }

        .fab-cyber::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 30px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue), var(--accent-purple));
            z-index: -1;
            opacity: 0.7;
            animation: fabBorderGlow 2.5s ease-in-out infinite;
        }

        @keyframes fabBorderGlow {
            0%,
            100% {
                opacity: 0.6;
            }
            50% {
                opacity: 1;
            }
        }

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

        .fab-cyber:hover {
            opacity: 1;
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.55), 0 0 14px rgba(123, 47, 255, 0.35);
            transform: scale(1.08);
            animation-play-state: paused;
        }

        .fab-cyber:active {
            transform: scale(0.92);
            box-shadow: 0 0 36px rgba(0, 240, 255, 0.7), 0 0 18px rgba(123, 47, 255, 0.5);
        }

        .fab-cyber i {
            font-size: 1.3rem;
            color: var(--accent-cyan);
            transition: all var(--transition-fast);
            position: relative;
            z-index: 1;
        }

        .fab-cyber:hover i {
            color: #fff;
            text-shadow: 0 0 10px rgba(0, 240, 255, 0.8);
        }

        .fab-notification {
            position: absolute;
            top: 4px;
            right: 4px;
            width: 11px;
            height: 11px;
            border-radius: 50%;
            background: #FF0055;
            border: 2px solid rgba(8, 9, 15, 0.9);
            animation: fabBlink 1.5s ease-in-out infinite;
            z-index: 2;
        }

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

        @media (max-width: 768px) {
            .fab-cyber {
                width: 46px;
                height: 46px;
                left: 12px;
                bottom: 80px;
            }
            .fab-cyber i {
                font-size: 1.15rem;
            }
        }

        /* ========== FOOTER ========== */
        .footer-custom {
            background: rgba(8, 9, 15, 0.9);
            border-top: 1px solid var(--border-glass);
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
        }

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

        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        .footer-col-title {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-primary);
            margin-bottom: 14px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

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

        .footer-links li a {
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
            display: inline-block;
            padding: 2px 0;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-domain {
            color: var(--accent-cyan);
            font-weight: 500;
        }

        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-custom {
                padding: 32px 0 20px;
            }
        }

        /* ========== UTILITY ========== */
        .text-gradient-cyan {
            background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .divider-glow {
            width: 60px;
            height: 3px;
            border-radius: 2px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
            margin: 16px 0 24px;
            box-shadow: var(--glow-cyan);
        }

        @media (max-width: 768px) {
            .divider-glow {
                margin: 12px 0 18px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0f0c20;
            --bg-secondary: #0b1a30;
            --bg-card: #141126;
            --bg-card-hover: #1b1533;
            --accent-lime: #ccff00;
            --accent-cyan: #00f0ff;
            --accent-purple: #7b2ff7;
            --accent-pink: #ff007f;
            --text-white: #ffffff;
            --text-silver: #a6acaf;
            --text-muted: #6e7681;
            --border-glass: rgba(0, 240, 255, 0.15);
            --border-neon: rgba(204, 255, 0, 0.35);
            --shadow-neon-cyan: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-neon-lime: 0 0 20px rgba(204, 255, 0, 0.3);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 32px;
            --font-body: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --spacing-section: 5rem;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-body);
            background: radial-gradient(circle at 10% 10%, #1a1535 0%, var(--bg-primary) 45%, #08060f 100%);
            color: var(--text-white);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color .25s ease;
        }
        a:hover {
            color: var(--accent-cyan);
        }
        img {
            max-width: 100%;
            display: block;
        }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        /* HEADER / NAV */
        .navbar-custom {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(15, 12, 32, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-glass);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }
        .navbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 1rem;
        }
        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: .75rem;
            color: var(--text-white);
            font-weight: 700;
            font-size: 1.05rem;
            max-width: 340px;
            line-height: 1.3;
        }
        .navbar-brand-custom:hover {
            color: var(--accent-lime);
        }
        .brand-icon {
            width: 42px;
            height: 42px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            color: #0b0b0b;
            border-radius: 12px;
            font-size: 1.3rem;
            box-shadow: var(--shadow-neon-cyan);
        }
        .brand-text {
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .navbar-toggler-custom {
            background: transparent;
            border: 1px solid var(--border-glass);
            color: var(--text-white);
            width: 44px;
            height: 44px;
            border-radius: 10px;
            font-size: 1.2rem;
            display: none;
            align-items: center;
            justify-content: center;
            transition: all .25s ease;
        }
        .navbar-toggler-custom:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }
        .navbar-nav-custom {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .navbar-nav-custom li a {
            font-size: .95rem;
            font-weight: 500;
            color: var(--text-silver);
            position: relative;
            padding: .5rem 0;
            transition: color .25s ease;
        }
        .navbar-nav-custom li a:hover,
        .navbar-nav-custom li a.active {
            color: var(--accent-cyan);
        }
        .navbar-nav-custom li a.active::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--accent-cyan);
            border-radius: 4px;
            box-shadow: var(--shadow-neon-cyan);
        }
        .navbar-actions {
            display: flex;
            align-items: center;
            gap: .75rem;
        }
        .btn-login-text {
            background: transparent;
            border: none;
            color: var(--text-silver);
            font-weight: 600;
            font-size: .9rem;
            padding: .5rem .75rem;
            transition: color .25s ease;
        }
        .btn-login-text:hover {
            color: var(--accent-cyan);
        }
        .btn-signup-solid {
            background: linear-gradient(135deg, var(--accent-lime), #9acd00);
            color: #0b0b0b;
            font-weight: 700;
            font-size: .9rem;
            border: none;
            padding: .6rem 1.4rem;
            border-radius: 50px;
            box-shadow: 0 4px 18px rgba(204, 255, 0, 0.35);
            transition: all .25s ease;
        }
        .btn-signup-solid:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 25px rgba(204, 255, 0, 0.55);
            background: var(--accent-lime);
        }
        /* HERO */
        .hero-promo {
            position: relative;
            padding: 4.5rem 0 3.5rem;
            background: radial-gradient(ellipse at 80% 20%, rgba(123, 47, 247, 0.25) 0%, transparent 55%),
                        radial-gradient(ellipse at 10% 80%, rgba(0, 240, 255, 0.12) 0%, transparent 50%);
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
            overflow: hidden;
        }
        .hero-promo::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.jpg');
            background-size: cover;
            background-position: center;
            opacity: .08;
            pointer-events: none;
        }
        .hero-promo .container-custom {
            position: relative;
            z-index: 1;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: .5rem;
            background: rgba(204, 255, 0, 0.1);
            border: 1px solid rgba(204, 255, 0, 0.4);
            color: var(--accent-lime);
            font-size: .8rem;
            font-weight: 600;
            letter-spacing: .04em;
            padding: .4rem 1rem;
            border-radius: 50px;
            text-transform: uppercase;
            margin-bottom: 1.5rem;
        }
        .hero-promo h1 {
            font-size: clamp(2.2rem, 5vw, 3.5rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1.25rem;
            letter-spacing: -.02em;
        }
        .hero-promo h1 .highlight {
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-silver);
            max-width: 640px;
            margin-bottom: 2rem;
            line-height: 1.7;
        }
        .hero-group-banner {
            background: rgba(20, 17, 38, 0.8);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            flex-wrap: wrap;
            backdrop-filter: blur(10px);
            margin-bottom: 2rem;
        }
        .group-progress {
            display: flex;
            align-items: center;
            gap: 1.25rem;
        }
        .avatar-stack {
            display: flex;
        }
        .avatar-stack .avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            border: 2px solid var(--bg-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: #0b0b0b;
            font-size: .9rem;
            margin-right: -12px;
            background: var(--accent-cyan);
        }
        .avatar-stack .avatar:nth-child(2) {
            background: var(--accent-lime);
        }
        .avatar-stack .avatar:nth-child(3) {
            background: #ff9f00;
        }
        .avatar-stack .avatar:nth-child(4) {
            background: #ff007f;
            color: white;
        }
        .group-info h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: .25rem;
        }
        .group-info p {
            color: var(--text-silver);
            font-size: .9rem;
            margin-bottom: 0;
        }
        .hero-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .btn-neon-primary {
            background: linear-gradient(135deg, var(--accent-lime), #9acd00);
            color: #0b0b0b;
            font-weight: 700;
            border: none;
            padding: .9rem 2rem;
            border-radius: 50px;
            font-size: 1rem;
            box-shadow: 0 4px 22px rgba(204, 255, 0, 0.45);
            transition: all .3s ease;
        }
        .btn-neon-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(204, 255, 0, 0.7);
            background: var(--accent-lime);
            color: #0b0b0b;
        }
        .btn-neon-outline {
            background: transparent;
            border: 2px solid var(--accent-cyan);
            color: var(--accent-cyan);
            font-weight: 600;
            padding: .85rem 2rem;
            border-radius: 50px;
            font-size: 1rem;
            transition: all .3s ease;
        }
        .btn-neon-outline:hover {
            background: var(--accent-cyan);
            color: #0b0b0b;
            box-shadow: var(--shadow-neon-cyan);
            transform: translateY(-3px);
        }
        /* SECTIONS */
        .section-block {
            padding: var(--spacing-section) 0;
        }
        .section-label {
            display: inline-block;
            font-size: .78rem;
            font-weight: 700;
            letter-spacing: .08em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            margin-bottom: .75rem;
        }
        .section-title {
            font-size: clamp(1.7rem, 3.5vw, 2.4rem);
            font-weight: 800;
            letter-spacing: -.01em;
            margin-bottom: 1rem;
            line-height: 1.25;
        }
        .section-desc {
            color: var(--text-silver);
            font-size: 1.05rem;
            max-width: 720px;
            line-height: 1.7;
            margin-bottom: 2.5rem;
        }
        /* PROMO CARDS */
        .promo-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.75rem;
        }
        .promo-card {
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 2rem;
            position: relative;
            overflow: hidden;
            transition: all .35s ease;
            box-shadow: var(--shadow-card);
        }
        .promo-card:hover {
            border-color: var(--border-neon);
            box-shadow: 0 12px 40px rgba(0, 240, 255, 0.2);
            transform: translateY(-6px);
        }
        .promo-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent-lime), var(--accent-cyan), var(--accent-purple));
            opacity: .8;
        }
        .promo-tag {
            position: absolute;
            top: 1.25rem;
            right: 1.25rem;
            background: rgba(255, 0, 127, 0.2);
            color: var(--accent-pink);
            font-size: .72rem;
            font-weight: 700;
            padding: .3rem .7rem;
            border-radius: 50px;
            letter-spacing: .05em;
            text-transform: uppercase;
        }
        .promo-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 1.25rem;
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 240, 255, 0.25);
        }
        .promo-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: .75rem;
        }
        .promo-card p {
            color: var(--text-silver);
            font-size: .95rem;
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }
        .promo-code {
            display: inline-flex;
            align-items: center;
            gap: .5rem;
            background: rgba(204, 255, 0, 0.1);
            border: 1px dashed rgba(204, 255, 0, 0.5);
            color: var(--accent-lime);
            font-weight: 700;
            font-size: .9rem;
            padding: .5rem 1rem;
            border-radius: 8px;
            letter-spacing: .06em;
        }
        .promo-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-top: 1.25rem;
            color: var(--text-muted);
            font-size: .82rem;
        }
        /* STEPS */
        .steps-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 1.5rem;
            counter-reset: step;
        }
        .step-item {
            counter-increment: step;
            padding: 1.75rem;
            border-radius: var(--radius-md);
            background: rgba(20, 17, 38, 0.6);
            border-left: 3px solid var(--accent-cyan);
            transition: all .3s ease;
        }
        .step-item:hover {
            background: rgba(0, 240, 255, 0.05);
            border-left-color: var(--accent-lime);
        }
        .step-item .step-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--accent-cyan);
            opacity: .5;
            line-height: 1;
            margin-bottom: .5rem;
        }
        .step-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: .5rem;
        }
        .step-item p {
            color: var(--text-silver);
            font-size: .9rem;
            margin-bottom: 0;
            line-height: 1.6;
        }
        /* FAQ */
        .faq-list {
            max-width: 860px;
        }
        .accordion-custom-item {
            background: rgba(20, 17, 38, 0.6);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            overflow: hidden;
            transition: all .3s ease;
        }
        .accordion-custom-item:hover {
            border-color: rgba(0, 240, 255, 0.4);
        }
        .accordion-custom-btn {
            background: transparent;
            border: none;
            color: var(--text-white);
            font-weight: 600;
            font-size: 1rem;
            padding: 1.25rem 1.5rem;
            width: 100%;
            text-align: left;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            cursor: pointer;
            transition: color .25s ease;
        }
        .accordion-custom-btn:hover {
            color: var(--accent-cyan);
        }
        .accordion-custom-btn i {
            transition: transform .35s ease;
            color: var(--accent-cyan);
        }
        .accordion-custom-btn[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .accordion-custom-body {
            padding: 0 1.5rem 1.25rem;
            color: var(--text-silver);
            font-size: .95rem;
            line-height: 1.7;
        }
        /* CTA */
        .cta-final {
            position: relative;
            padding: 5rem 0;
            background: radial-gradient(ellipse at center, rgba(123, 47, 247, 0.3) 0%, rgba(15, 12, 32, 0.9) 70%);
            border-top: 1px solid var(--border-glass);
            border-bottom: 1px solid var(--border-glass);
            text-align: center;
        }
        .cta-final::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            opacity: .07;
        }
        .cta-final .container-custom {
            position: relative;
            z-index: 1;
        }
        .cta-final h2 {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 800;
            margin-bottom: 1rem;
        }
        .cta-final p {
            color: var(--text-silver);
            max-width: 600px;
            margin: 0 auto 2rem;
            font-size: 1.05rem;
        }
        /* FOOTER */
        .footer-custom {
            background: #08060f;
            border-top: 1px solid rgba(0, 240, 255, 0.12);
            padding: 3.5rem 0 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: .75rem;
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 1rem;
        }
        .footer-logo i {
            font-size: 1.5rem;
            color: var(--accent-cyan);
        }
        .footer-desc {
            color: var(--text-silver);
            font-size: .9rem;
            line-height: 1.7;
            max-width: 400px;
        }
        .footer-col-title {
            font-size: .85rem;
            font-weight: 700;
            letter-spacing: .06em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            margin-bottom: 1rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: .6rem;
        }
        .footer-links a {
            color: var(--text-silver);
            font-size: .9rem;
            transition: color .25s ease;
        }
        .footer-links a:hover {
            color: var(--accent-lime);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 1.5rem;
            text-align: center;
            color: var(--text-muted);
            font-size: .82rem;
        }
        .footer-domain {
            color: var(--accent-cyan);
            font-weight: 600;
        }
        /* FAB */
        .fab-left {
            position: fixed;
            left: 1.25rem;
            bottom: 6rem;
            z-index: 1050;
            width: 56px;
            height: 56px;
            border-radius: 18px;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-cyan);
            cursor: pointer;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            transition: all .35s ease;
            opacity: .6;
            animation: fabBreath 3s ease-in-out infinite;
        }
        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.8);
            color: var(--accent-lime);
        }
        .fab-left:active {
            transform: scale(0.95);
            border-color: var(--accent-pink);
            color: var(--accent-pink);
        }
        .fab-left .notification-dot {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            background: var(--accent-pink);
            border-radius: 50%;
            border: 2px solid #08060f;
            animation: blinkDot 1.4s ease-in-out infinite;
        }
        @keyframes fabBreath {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        @keyframes blinkDot {
            0%, 100% { opacity: 1; }
            50% { opacity: .3; }
        }
        /* RESPONSIVE */
        @media (max-width: 992px) {
            .navbar-nav-custom {
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(15, 12, 32, 0.98);
                flex-direction: column;
                align-items: flex-start;
                padding: 1.5rem;
                gap: 1rem;
                border-bottom: 1px solid var(--border-glass);
                display: none;
                z-index: 1035;
            }
            .navbar-nav-custom.open {
                display: flex;
            }
            .navbar-toggler-custom {
                display: flex;
            }
            .navbar-brand-custom {
                max-width: 260px;
                font-size: .9rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
            .hero-group-banner {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 768px) {
            :root {
                --spacing-section: 3.5rem;
            }
            .hero-promo {
                padding: 3rem 0 2.5rem;
            }
            .navbar-actions .btn-login-text {
                display: none;
            }
            .navbar-actions .btn-signup-solid {
                padding: .5rem 1.1rem;
                font-size: .82rem;
            }
            .promo-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.75rem;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
            }
        }
        @media (max-width: 520px) {
            .container-custom {
                padding: 0 1rem;
            }
            .navbar-brand-custom {
                max-width: 180px;
                font-size: .78rem;
            }
            .brand-icon {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }
            .group-progress {
                flex-direction: column;
                align-items: flex-start;
            }
            .avatar-stack .avatar {
                width: 40px;
                height: 40px;
                font-size: .75rem;
            }
            .fab-left {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                left: .75rem;
                bottom: 5rem;
            }
        }