/* roulang page: index */
:root {
            --primary-bg: #0A2E1C;
            --primary-bg-light: #123E25;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-dark: #0F2E1D;
            --border-gold: rgba(255,215,0,0.4);
            --border-soft: rgba(255,255,255,0.12);
            --shadow-soft: 0 8px 24px rgba(0,0,0,0.12);
            --shadow-glow: 0 0 20px rgba(255,215,0,0.25);
            --radius-sm: 12px;
            --radius-md: 20px;
            --radius-lg: 28px;
            --spacing-section: 5rem;
            --spacing-card: 1.5rem;
            --transition-fast: 0.25s ease;
            --transition-smooth: 0.4s cubic-bezier(0.4,0,0.2,1);
            --font-body: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            background: #F7FBF9;
            color: #1A2E25;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button, input {
            font-family: inherit;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* Navigation */
        .main-nav {
            background: rgba(10,46,28,0.97);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-gold);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.85rem 0;
            gap: 1rem;
        }

        .logo {
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--accent-gold);
            letter-spacing: -0.02em;
            line-height: 1.3;
            max-width: 280px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.75rem;
            list-style: none;
        }

        .nav-links a {
            color: var(--text-mint);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.4rem 0;
            border-bottom: 2px solid transparent;
            transition: all var(--transition-fast);
            position: relative;
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: var(--accent-gold);
            border-bottom-color: var(--accent-gold);
        }

        .nav-auth {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .btn-login {
            background: transparent;
            color: var(--text-mint);
            border: 1px solid var(--border-soft);
            padding: 0.5rem 1.25rem;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-login:hover {
            background: rgba(255,255,255,0.1);
            border-color: var(--accent-gold);
            color: var(--accent-gold);
        }

        .btn-signup {
            background: var(--accent-gold);
            color: #1A2E15;
            border: none;
            padding: 0.55rem 1.5rem;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 14px rgba(255,215,0,0.35);
            white-space: nowrap;
        }

        .btn-signup:hover {
            background: #FFE44D;
            transform: translateY(-1px);
            box-shadow: 0 8px 22px rgba(255,215,0,0.5);
        }

        .btn-signup:active,
        .btn-login:active {
            transform: scale(0.97);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--accent-gold);
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.3rem;
        }

        /* Hero - Coupon Wall Style */
        .hero-section {
            background: linear-gradient(145deg, #0A2E1C 0%, #123E25 45%, #1B4D33 100%);
            padding: 4.5rem 0 5rem;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.jpg') center/cover;
            opacity: 0.18;
            z-index: 0;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 40%, rgba(255,215,0,0.12) 0%, transparent 60%);
            z-index: 0;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 3.5rem;
            align-items: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255,215,0,0.15);
            border: 1px solid rgba(255,215,0,0.4);
            color: var(--accent-gold);
            padding: 0.45rem 1.2rem;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
        }

        .hero-badge i {
            font-size: 0.8rem;
        }

        .hero-title {
            font-size: clamp(2.2rem, 5vw, 3.5rem);
            font-weight: 900;
            color: var(--text-white);
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 1.25rem;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-description {
            font-size: 1.1rem;
            color: var(--text-mint);
            line-height: 1.7;
            max-width: 560px;
            margin-bottom: 2rem;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 2.5rem;
        }

        .btn-primary {
            background: var(--accent-gold);
            color: #1A2E15;
            padding: 0.9rem 2.2rem;
            border-radius: 999px;
            font-weight: 800;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            box-shadow: 0 6px 20px rgba(255,215,0,0.4);
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
        }

        .btn-primary:hover {
            background: #FFE44D;
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(255,215,0,0.55);
        }

        .btn-outline-light {
            background: transparent;
            color: var(--text-white);
            padding: 0.9rem 2rem;
            border-radius: 999px;
            font-weight: 700;
            font-size: 1rem;
            border: 2px solid rgba(255,255,255,0.4);
            cursor: pointer;
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
        }

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

        .hero-stats {
            display: flex;
            gap: 2.5rem;
            flex-wrap: wrap;
        }

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

        .hero-stat-number {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.2;
        }

        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--text-mint);
            opacity: 0.8;
        }

        .hero-coupon-wall {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }

        .coupon-main {
            background: linear-gradient(135deg, #FFFFFF 0%, #FFFDF0 100%);
            border-radius: var(--radius-lg);
            padding: 2.5rem 2rem;
            box-shadow: 0 20px 50px rgba(0,0,0,0.35);
            border: 2px solid var(--accent-gold);
            position: relative;
            overflow: hidden;
        }

        .coupon-main::before {
            content: '';
            position: absolute;
            top: -30px;
            right: -30px;
            width: 120px;
            height: 120px;
            background: rgba(255,215,0,0.2);
            border-radius: 50%;
        }

        .coupon-main::after {
            content: '';
            position: absolute;
            bottom: -20px;
            left: -20px;
            width: 90px;
            height: 90px;
            background: rgba(210,47,47,0.12);
            border-radius: 50%;
        }

        .coupon-tag {
            display: inline-block;
            background: var(--accent-red);
            color: white;
            font-size: 0.7rem;
            font-weight: 800;
            padding: 0.3rem 0.8rem;
            border-radius: 6px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 0.8rem;
        }

        .coupon-main h3 {
            font-size: 1.9rem;
            font-weight: 900;
            color: #0F2E1D;
            line-height: 1.25;
            margin-bottom: 0.5rem;
            position: relative;
            z-index: 1;
        }

        .coupon-main p {
            color: #4A5D52;
            font-size: 0.95rem;
            margin-bottom: 1.5rem;
            position: relative;
            z-index: 1;
        }

        .coupon-claim-btn {
            background: var(--accent-red);
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: 999px;
            font-weight: 800;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            position: relative;
            z-index: 1;
            box-shadow: 0 6px 18px rgba(210,47,47,0.4);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .coupon-claim-btn:hover {
            background: #E53935;
            transform: translateY(-2px);
            box-shadow: 0 10px 26px rgba(210,47,47,0.55);
        }

        .coupon-mini-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 0.8rem;
        }

        .coupon-mini {
            background: rgba(255,255,255,0.08);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255,215,0,0.3);
            border-radius: var(--radius-sm);
            padding: 1rem;
            text-align: center;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .coupon-mini:hover {
            background: rgba(255,255,255,0.16);
            border-color: var(--accent-gold);
            transform: translateY(-3px);
        }

        .coupon-mini-value {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--accent-gold);
            display: block;
        }

        .coupon-mini-label {
            font-size: 0.75rem;
            color: var(--text-mint);
            display: block;
            margin-top: 0.2rem;
        }

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

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 2.5rem;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .section-header-left {
            flex: 1;
            min-width: 280px;
        }

        .section-tag {
            display: inline-block;
            color: var(--accent-red);
            font-weight: 700;
            font-size: 0.85rem;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 0.6rem;
        }

        .section-title {
            font-size: clamp(1.8rem, 4vw, 2.5rem);
            font-weight: 800;
            color: #0F2E1D;
            line-height: 1.25;
            letter-spacing: -0.01em;
        }

        .section-description {
            color: #4A5D52;
            font-size: 1.05rem;
            line-height: 1.7;
            max-width: 600px;
            margin-top: 0.8rem;
        }

        .section-link {
            color: var(--accent-red);
            font-weight: 700;
            font-size: 0.95rem;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .section-link:hover {
            color: #B71C1C;
            gap: 0.7rem;
        }

        /* Content Calendar */
        .calendar-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 1.5rem;
        }

        .calendar-card {
            background: white;
            border-radius: var(--radius-md);
            padding: 1.8rem;
            box-shadow: var(--shadow-soft);
            border-left: 4px solid var(--accent-gold);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .calendar-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(0,0,0,0.15);
            border-left-color: var(--accent-red);
        }

        .calendar-date {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--accent-red);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            margin-bottom: 0.7rem;
        }

        .calendar-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #0F2E1D;
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }

        .calendar-card p {
            color: #4A5D52;
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* Hot Topics */
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }

        .topic-card {
            background: white;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-soft);
            transition: all var(--transition-fast);
            cursor: pointer;
            border: 1px solid #E8F0EB;
        }

        .topic-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 45px rgba(0,0,0,0.16);
        }

        .topic-card-image {
            width: 100%;
            height: 220px;
            object-fit: cover;
        }

        .topic-card-body {
            padding: 1.8rem;
        }

        .topic-card-tag {
            display: inline-block;
            background: rgba(210,47,47,0.1);
            color: var(--accent-red);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.3rem 0.9rem;
            border-radius: 999px;
            margin-bottom: 0.8rem;
            letter-spacing: 0.04em;
        }

        .topic-card h3 {
            font-size: 1.35rem;
            font-weight: 800;
            color: #0F2E1D;
            margin-bottom: 0.6rem;
            line-height: 1.35;
        }

        .topic-card p {
            color: #4A5D52;
            font-size: 0.95rem;
            line-height: 1.65;
        }

        /* Data Dashboard */
        .dashboard-section {
            background: linear-gradient(145deg, #0A2E1C 0%, #123E25 100%);
            padding: 4.5rem 0;
        }

        .dashboard-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
        }

        .dashboard-stat {
            text-align: center;
            padding: 2rem 1rem;
            background: rgba(255,255,255,0.06);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,215,0,0.2);
            transition: all var(--transition-fast);
        }

        .dashboard-stat:hover {
            background: rgba(255,255,255,0.1);
            border-color: var(--accent-gold);
        }

        .dashboard-stat i {
            font-size: 2rem;
            color: var(--accent-gold);
            margin-bottom: 0.8rem;
            display: block;
        }

        .dashboard-stat-number {
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--text-white);
            line-height: 1.2;
        }

        .dashboard-stat-label {
            font-size: 0.9rem;
            color: var(--text-mint);
            opacity: 0.85;
            margin-top: 0.4rem;
        }

        /* News/Info List */
        .news-layout {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 2.5rem;
            align-items: start;
        }

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

        .news-item {
            display: flex;
            gap: 1.5rem;
            padding: 1.5rem 0;
            border-bottom: 1px solid #E8F0EB;
            transition: all var(--transition-fast);
            cursor: pointer;
            align-items: flex-start;
        }

        .news-item:first-child {
            padding-top: 0;
        }

        .news-item:hover {
            padding-left: 0.5rem;
        }

        .news-item-number {
            font-size: 1.8rem;
            font-weight: 900;
            color: #D0DDD5;
            line-height: 1;
            min-width: 3rem;
            padding-top: 0.2rem;
        }

        .news-item-content {
            flex: 1;
        }

        .news-item-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            font-size: 0.8rem;
            color: #7A8D82;
            margin-bottom: 0.4rem;
        }

        .news-item-category {
            color: var(--accent-red);
            font-weight: 700;
        }

        .news-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #0F2E1D;
            line-height: 1.45;
            margin-bottom: 0.35rem;
            transition: color var(--transition-fast);
        }

        .news-item:hover h4 {
            color: var(--accent-red);
        }

        .news-item p {
            color: #4A5D52;
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .news-sidebar {
            background: white;
            border-radius: var(--radius-lg);
            padding: 2rem;
            box-shadow: var(--shadow-soft);
            position: sticky;
            top: 100px;
            border: 1px solid #E8F0EB;
        }

        .news-sidebar h3 {
            font-size: 1.25rem;
            font-weight: 800;
            color: #0F2E1D;
            margin-bottom: 1.5rem;
            padding-bottom: 0.8rem;
            border-bottom: 2px solid var(--accent-gold);
        }

        .sidebar-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .sidebar-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.8rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            padding: 0.5rem 0;
        }

        .sidebar-list li:hover {
            color: var(--accent-red);
        }

        .sidebar-list i {
            color: var(--accent-gold);
            font-size: 0.7rem;
            margin-top: 0.4rem;
        }

        .sidebar-list span {
            font-size: 0.9rem;
            font-weight: 600;
            color: #3A4D42;
            line-height: 1.5;
        }

        /* Guarantee Icons Bar */
        .guarantee-bar {
            background: white;
            border-top: 1px solid #E8F0EB;
            border-bottom: 1px solid #E8F0EB;
            padding: 2.5rem 0;
        }

        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 1.5rem;
        }

        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 0.8rem;
        }

        .guarantee-item i {
            font-size: 2rem;
            color: var(--accent-gold);
            flex-shrink: 0;
            width: 3.5rem;
            height: 3.5rem;
            background: rgba(255,215,0,0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .guarantee-item h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #0F2E1D;
            margin-bottom: 0.2rem;
        }

        .guarantee-item p {
            font-size: 0.85rem;
            color: #4A5D52;
            line-height: 1.5;
        }

        /* Usage Guide */
        .guide-section {
            background: #F0F7F3;
        }

        .guide-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 2rem;
            counter-reset: step-counter;
        }

        .guide-step {
            position: relative;
            padding: 2.5rem 1.8rem;
            background: white;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-soft);
            counter-increment: step-counter;
            transition: all var(--transition-fast);
        }

        .guide-step:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(0,0,0,0.12);
        }

        .guide-step::before {
            content: counter(step-counter);
            position: absolute;
            top: -1.2rem;
            left: 1.8rem;
            background: var(--accent-gold);
            color: #1A2E15;
            width: 2.8rem;
            height: 2.8rem;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1.3rem;
            box-shadow: 0 6px 16px rgba(255,215,0,0.4);
        }

        .guide-step h3 {
            font-size: 1.2rem;
            font-weight: 800;
            color: #0F2E1D;
            margin-bottom: 0.7rem;
            margin-top: 0.5rem;
        }

        .guide-step p {
            color: #4A5D52;
            font-size: 0.9rem;
            line-height: 1.65;
        }

        /* FAQ */
        .faq-section {
            background: white;
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }

        .faq-item {
            border: 1px solid #E8F0EB;
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 1.3rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 700;
            color: #0F2E1D;
            text-align: left;
            transition: all var(--transition-fast);
        }

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

        .faq-question i {
            transition: transform var(--transition-fast);
            color: var(--accent-gold);
            font-size: 0.9rem;
        }

        .faq-answer {
            padding: 0 1.5rem 1.3rem;
            color: #4A5D52;
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }

        /* Footer CTA */
        .footer-cta {
            background: linear-gradient(145deg, #0A2E1C 0%, #123E25 100%);
            padding: 4.5rem 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .footer-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.jpg') center/cover;
            opacity: 0.12;
            z-index: 0;
        }

        .footer-cta-content {
            position: relative;
            z-index: 1;
            max-width: 700px;
            margin: 0 auto;
        }

        .footer-cta h2 {
            font-size: clamp(2rem, 4vw, 2.8rem);
            font-weight: 900;
            color: var(--text-white);
            margin-bottom: 1.2rem;
            line-height: 1.25;
        }

        .footer-cta p {
            color: var(--text-mint);
            font-size: 1.1rem;
            line-height: 1.7;
            margin-bottom: 2rem;
        }

        /* Footer */
        .site-footer {
            background: #081F15;
            padding: 4rem 0 2rem;
            color: var(--text-mint);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 3rem;
            margin-bottom: 3rem;
        }

        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 1rem;
            line-height: 1.4;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            opacity: 0.85;
            max-width: 350px;
        }

        .footer-column h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 1.2rem;
        }

        .footer-column ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
        }

        .footer-column a {
            font-size: 0.9rem;
            opacity: 0.8;
            transition: all var(--transition-fast);
        }

        .footer-column a:hover {
            opacity: 1;
            color: var(--accent-gold);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            padding-top: 2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.85rem;
            opacity: 0.75;
        }

        .footer-badges {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            flex-wrap: wrap;
        }

        .badge-18 {
            background: var(--accent-red);
            color: white;
            font-weight: 800;
            padding: 0.3rem 0.8rem;
            border-radius: 6px;
            font-size: 0.8rem;
        }

        .badge-license {
            background: rgba(255,215,0,0.15);
            border: 1px solid rgba(255,215,0,0.4);
            color: var(--accent-gold);
            padding: 0.3rem 0.8rem;
            border-radius: 6px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* Floating Action Button - Classic & Royal Style */
        .fab-container {
            position: fixed;
            left: 1.2rem;
            bottom: 6rem;
            z-index: 998;
        }

        .fab-button {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 25%, #3A2A1A 0%, #1A120A 70%);
            border: 3px solid var(--accent-gold);
            cursor: pointer;
            position: relative;
            box-shadow: 0 4px 20px rgba(255,215,0,0.3);
            transition: all var(--transition-fast);
            opacity: 0.7;
            animation: fab-float 3s ease-in-out infinite;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .fab-button i {
            color: var(--accent-gold);
            font-size: 1.4rem;
            transition: transform 0.5s ease;
        }

        .fab-button:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 32px rgba(255,215,0,0.55);
        }

        .fab-button:hover i {
            transform: rotate(360deg);
        }

        .fab-button:active {
            transform: scale(0.95) translateY(2px);
        }

        .fab-notification {
            position: absolute;
            top: 4px;
            right: 4px;
            width: 14px;
            height: 14px;
            background: #E53935;
            border-radius: 50%;
            border: 2px solid #1A120A;
            animation: fab-blink 2s ease-in-out infinite;
        }

        @keyframes fab-float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 2.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .news-sidebar {
                position: static;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 3.5rem;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(10,46,28,0.98);
                flex-direction: column;
                padding: 1.5rem;
                gap: 1rem;
                border-bottom: 2px solid var(--border-gold);
                box-shadow: 0 12px 30px rgba(0,0,0,0.3);
            }
            .nav-links.open {
                display: flex;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-auth {
                gap: 0.5rem;
            }
            .btn-login, .btn-signup {
                padding: 0.45rem 1rem;
                font-size: 0.85rem;
            }
            .logo {
                font-size: 0.95rem;
                max-width: 200px;
            }
            .hero-section {
                padding: 3rem 0 3.5rem;
            }
            .hero-title {
                font-size: clamp(1.8rem, 6vw, 2.5rem);
            }
            .hero-description {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 1.5rem;
            }
            .coupon-mini-row {
                grid-template-columns: 1fr;
            }
            .coupon-main {
                padding: 1.8rem 1.5rem;
            }
            .coupon-main h3 {
                font-size: 1.5rem;
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .dashboard-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
            .fab-container {
                bottom: 5rem;
                left: 1rem;
            }
            .fab-button {
                width: 48px;
                height: 48px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 1rem;
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-primary, .btn-outline-light {
                justify-content: center;
                text-align: center;
            }
            .hero-stats {
                gap: 1rem;
                flex-wrap: wrap;
            }
            .hero-stat-number {
                font-size: 1.4rem;
            }
            .dashboard-grid {
                grid-template-columns: 1fr;
            }
            .news-item {
                flex-direction: column;
                gap: 0.5rem;
            }
            .news-item-number {
                font-size: 1.4rem;
            }
            .guide-steps {
                grid-template-columns: 1fr;
            }
            .calendar-grid, .topics-grid {
                grid-template-columns: 1fr;
            }
            .nav-auth {
                gap: 0.4rem;
            }
            .btn-login {
                padding: 0.4rem 0.8rem;
                font-size: 0.8rem;
            }
            .btn-signup {
                padding: 0.45rem 0.9rem;
                font-size: 0.8rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0B1A30;
            --bg-secondary: #0F0C20;
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --border-neon: rgba(0, 240, 255, 0.3);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-lime: 0 0 15px rgba(204, 255, 0, 0.3);
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 32px;
            --spacing-xl: 48px;
            --spacing-2xl: 64px;
        }

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }

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

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

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

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(11, 26, 48, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--spacing-md) 0;
            gap: var(--spacing-lg);
            flex-wrap: wrap;
        }

        .logo {
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.3;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            max-width: 320px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            gap: var(--spacing-md);
            flex-wrap: wrap;
        }

        .nav-links a {
            display: block;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border: 1px solid transparent;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--accent-cyan);
            border-color: rgba(0, 240, 255, 0.4);
            background: rgba(0, 240, 255, 0.05);
        }

        .nav-links a.active {
            color: var(--accent-lime);
            border-color: rgba(204, 255, 0, 0.5);
            background: rgba(204, 255, 0, 0.08);
        }

        .auth-buttons {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }

        .btn-login {
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-primary);
            background: transparent;
            border: none;
            cursor: pointer;
            transition: color 0.3s ease;
        }

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

        .btn-signup {
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #0F0C20;
            background: var(--accent-lime);
            border: none;
            border-radius: 24px;
            cursor: pointer;
            box-shadow: var(--shadow-lime);
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .btn-signup:hover {
            background: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
            transform: translateY(-2px);
        }

        .btn-signup:active {
            transform: translateY(0) scale(0.97);
        }

        /* Mobile menu toggle */
        .menu-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 4px 8px;
        }

        /* Hero Section */
        .hero {
            position: relative;
            background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 50%, #0B1A30 100%);
            padding: var(--spacing-2xl) 0;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-content {
            text-align: left;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 14px;
            background: rgba(204, 255, 0, 0.12);
            border: 1px solid rgba(204, 255, 0, 0.4);
            border-radius: 20px;
            color: var(--accent-lime);
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: var(--spacing-md);
            letter-spacing: 0.02em;
        }

        .hero h1 {
            font-size: 2.75rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.03em;
            margin-bottom: var(--spacing-md);
            background: linear-gradient(135deg, #FFFFFF 40%, var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-secondary);
            margin-bottom: var(--spacing-lg);
            max-width: 540px;
            line-height: 1.7;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 700;
            color: #0F0C20;
            background: var(--accent-lime);
            border: none;
            border-radius: 30px;
            cursor: pointer;
            box-shadow: var(--shadow-lime);
            transition: all 0.3s ease;
            letter-spacing: 0.01em;
        }

        .btn-primary:hover {
            background: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
            transform: translateY(-3px);
        }

        .btn-primary:active {
            transform: translateY(0) scale(0.97);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 28px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--accent-cyan);
            background: transparent;
            border: 2px solid rgba(0, 240, 255, 0.5);
            border-radius: 30px;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .btn-secondary:hover {
            background: rgba(0, 240, 255, 0.1);
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
        }

        .hero-visual {
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .hero-visual img {
            border-radius: var(--radius-lg);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 30px rgba(0, 240, 255, 0.15);
            max-height: 420px;
            object-fit: cover;
            width: 100%;
        }

        /* Section Common */
        .section {
            padding: var(--spacing-2xl) 0;
        }

        .section-header {
            margin-bottom: var(--spacing-xl);
        }

        .section-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid rgba(0, 240, 255, 0.3);
            border-radius: 20px;
            color: var(--accent-cyan);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: var(--spacing-sm);
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            margin-bottom: var(--spacing-sm);
            line-height: 1.3;
            text-align: left;
        }

        .section-desc {
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 650px;
            text-align: left;
            line-height: 1.7;
        }

        /* Features Grid */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }

        .feature-item {
            background: rgba(15, 12, 32, 0.6);
            border: 1px solid rgba(0, 240, 255, 0.15);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .feature-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-lime));
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .feature-item:hover {
            border-color: rgba(0, 240, 255, 0.4);
            box-shadow: var(--shadow-neon);
            transform: translateY(-4px);
        }

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

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

        .feature-item h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            letter-spacing: -0.01em;
        }

        .feature-item p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.65;
        }

        /* Game Cards Grid */
        .game-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }

        .game-card {
            background: rgba(15, 12, 32, 0.7);
            border: 1px solid rgba(0, 240, 255, 0.2);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.4s ease;
            cursor: pointer;
            position: relative;
        }

        .game-card:hover {
            transform: translateY(-6px) scale(1.02);
            border-color: rgba(0, 240, 255, 0.6);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.25);
        }

        .game-card-image {
            position: relative;
            height: 180px;
            overflow: hidden;
            background: #0F0C20;
        }

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

        .game-card:hover .game-card-image img {
            transform: scale(1.08);
        }

        .game-card-tag {
            position: absolute;
            top: 12px;
            right: 12px;
            padding: 4px 12px;
            background: rgba(0, 0, 0, 0.75);
            border: 1px solid var(--accent-cyan);
            border-radius: 14px;
            color: var(--accent-cyan);
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            backdrop-filter: blur(4px);
        }

        .game-card-tag.hot {
            border-color: #FF007F;
            color: #FF79C6;
        }

        .game-card-body {
            padding: var(--spacing-md);
        }

        .game-card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
            letter-spacing: -0.01em;
        }

        .game-card-body p {
            color: var(--text-secondary);
            font-size: 0.85rem;
            line-height: 1.55;
            margin-bottom: var(--spacing-sm);
        }

        .game-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: var(--spacing-sm);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .game-card-meta span {
            font-size: 0.8rem;
            color: var(--accent-lime);
            font-weight: 600;
        }

        /* Steps / Process */
        .steps-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
            counter-reset: step;
        }

        .step-item {
            background: rgba(15, 12, 32, 0.5);
            border: 1px solid rgba(0, 240, 255, 0.15);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            position: relative;
            transition: all 0.3s ease;
        }

        .step-item:hover {
            border-color: rgba(0, 240, 255, 0.4);
            box-shadow: var(--shadow-neon);
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--accent-lime);
            color: #0F0C20;
            font-weight: 800;
            font-size: 1rem;
            margin-bottom: var(--spacing-sm);
        }

        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .step-item p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* CTA Banner */
        .cta-banner {
            background: linear-gradient(135deg, #0F0C20, #0B1A30);
            border: 1px solid rgba(0, 240, 255, 0.3);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-lg);
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-banner h3 {
            font-size: 1.75rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            margin-bottom: 8px;
        }

        .cta-banner p {
            color: var(--text-secondary);
            max-width: 500px;
            line-height: 1.7;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .faq-item {
            background: rgba(15, 12, 32, 0.5);
            border: 1px solid rgba(0, 240, 255, 0.15);
            border-radius: var(--radius-sm);
            padding: var(--spacing-md) var(--spacing-lg);
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.4);
        }

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

        .faq-question i {
            color: var(--accent-cyan);
            font-size: 0.85rem;
            transition: transform 0.3s ease;
        }

        .faq-answer {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.65;
            padding-top: var(--spacing-sm);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            margin-top: var(--spacing-sm);
        }

        /* Footer */
        .site-footer {
            background: #0F0C20;
            border-top: 1px solid rgba(0, 240, 255, 0.15);
            padding: var(--spacing-2xl) 0 var(--spacing-lg);
            margin-top: var(--spacing-2xl);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-xl);
            margin-bottom: var(--spacing-xl);
        }

        .footer-brand h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.4;
        }

        .footer-brand p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.65;
            max-width: 400px;
        }

        .footer-column h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: var(--spacing-md);
            color: var(--accent-cyan);
        }

        .footer-column ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-column a {
            color: var(--text-secondary);
            font-size: 0.9rem;
            transition: color 0.3s ease;
        }

        .footer-column a:hover {
            color: var(--accent-lime);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            padding-top: var(--spacing-lg);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-wrap: wrap;
        }

        .footer-bottom span {
            color: var(--text-secondary);
            font-size: 0.85rem;
        }

        .footer-badges {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
        }

        .badge-18 {
            padding: 4px 12px;
            background: rgba(255, 0, 0, 0.2);
            border: 1px solid #FF0000;
            border-radius: 16px;
            color: #FF6B6B;
            font-weight: 700;
            font-size: 0.8rem;
        }

        .badge-license {
            padding: 4px 12px;
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid rgba(0, 240, 255, 0.3);
            border-radius: 16px;
            color: var(--accent-cyan);
            font-size: 0.8rem;
            font-weight: 500;
        }

        /* FAB */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(8px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            opacity: 0.6;
            transition: all 0.3s ease;
            color: var(--accent-cyan);
            font-size: 1.3rem;
        }

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

        .fab:active {
            transform: scale(0.95);
            border-color: #FF007F;
            color: #FF79C6;
        }

        .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 12px;
            height: 12px;
            background: #FF007F;
            border-radius: 50%;
            border: 2px solid #0B1A30;
            animation: blink 1.5s infinite;
        }

        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.2; }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                text-align: center;
            }

            .hero-content {
                text-align: center;
            }

            .hero-actions {
                justify-content: center;
            }

            .hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }

            .section-title, .section-desc {
                text-align: center;
                margin-left: auto;
                margin-right: auto;
            }

            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .game-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .steps-list {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: block;
            }

            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                align-items: flex-start;
                gap: 4px;
                padding: var(--spacing-sm) 0;
            }

            .nav-links.show {
                display: flex;
            }

            .nav-links a {
                width: 100%;
                text-align: left;
            }

            .auth-buttons {
                display: flex;
                gap: var(--spacing-sm);
            }

            .btn-login {
                padding: 6px 12px;
                font-size: 0.85rem;
            }

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

            .hero h1 {
                font-size: 2rem;
            }

            .hero-subtitle {
                font-size: 1rem;
            }

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

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

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }

            .cta-banner {
                flex-direction: column;
                text-align: center;
            }

            .cta-banner p {
                margin-left: auto;
                margin-right: auto;
            }

            .section-title {
                font-size: 1.6rem;
            }

            .fab {
                left: 12px;
                bottom: 80px;
                width: 48px;
                height: 48px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 var(--spacing-md);
            }

            .hero h1 {
                font-size: 1.65rem;
            }

            .hero-actions {
                flex-direction: column;
                width: 100%;
            }

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

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

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

/* roulang page: category2 */
@import url('/assets/css/vendor/9723b7396f-css2.css');

        :root {
            --bg: #0B0B0B;
            --surface: #161616;
            --surface-light: #1E1E1E;
            --lava: #FF4500;
            --fire: #FF0000;
            --gold: #FFCC00;
            --text: #FFFFFF;
            --muted: #CCCCCC;
            --border: #2A2A2A;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Be Vietnam Pro', 'Segoe UI', Roboto, Arial, sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== HEADER / NAVIGATION ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(11, 11, 11, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 69, 0, 0.15);
            transition: var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 5px 30px rgba(0, 0, 0, 0.6);
        }

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

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

        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--lava), var(--fire));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #fff;
            box-shadow: var(--fire-glow);
            transition: var(--transition);
        }

        .logo:hover .logo-icon {
            transform: rotate(10deg) scale(1.05);
            box-shadow: 0 0 30px rgba(255, 69, 0, 0.6);
        }

        .logo-text {
            font-weight: 800;
            font-size: 17px;
            line-height: 1.2;
            color: var(--text);
            max-width: 200px;
            letter-spacing: -0.3px;
        }

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

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            flex-wrap: wrap;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 500;
            color: var(--muted);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }

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

        .nav-links a.active {
            color: var(--text);
            background: linear-gradient(135deg, rgba(255, 69, 0, 0.25), rgba(255, 0, 0, 0.2));
            font-weight: 700;
            box-shadow: inset 0 0 0 1px rgba(255, 69, 0, 0.3);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--lava);
            border-radius: 2px;
        }

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

        .btn-login {
            padding: 10px 18px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            border-radius: 50px;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-login:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .btn-signup {
            padding: 10px 22px;
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--lava), var(--fire));
            border-radius: 50px;
            box-shadow: 0 4px 20px rgba(255, 69, 0, 0.4);
            transition: var(--transition);
            white-space: nowrap;
            border: 1px solid rgba(255, 69, 0, 0.4);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(255, 69, 0, 0.6);
            background: linear-gradient(135deg, #ff5722, #ff1a1a);
        }

        .btn-signup:active {
            transform: translateY(0);
            box-shadow: 0 4px 15px rgba(255, 69, 0, 0.4);
        }

        .mobile-toggle {
            display: none;
            font-size: 26px;
            color: var(--text);
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition);
        }

        .mobile-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* ===== HERO / BANNER ===== */
        .page-banner {
            padding-top: 130px;
            padding-bottom: 50px;
            background: linear-gradient(180deg, #0B0B0B 0%, #121212 100%);
            position: relative;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 69, 0, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -150px;
            left: -150px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 0, 0, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .banner-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 0.9fr;
            gap: 50px;
            align-items: center;
        }

        .banner-text h1 {
            font-size: 44px;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -1px;
            background: linear-gradient(135deg, #FFFFFF 30%, #FFCC00 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .banner-text .subtitle {
            font-size: 17px;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 30px;
            max-width: 520px;
        }

        .banner-meta {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }

        .banner-meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--muted);
        }

        .banner-meta-item i {
            color: var(--gold);
            font-size: 16px;
        }

        .banner-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-primary {
            padding: 14px 32px;
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--lava), var(--fire));
            border-radius: 50px;
            box-shadow: 0 8px 30px rgba(255, 69, 0, 0.45);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            border: 1px solid rgba(255, 69, 0, 0.5);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 40px rgba(255, 69, 0, 0.6);
            background: linear-gradient(135deg, #ff5722, #ff1a1a);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 6px 20px rgba(255, 69, 0, 0.4);
        }

        .btn-secondary {
            padding: 14px 28px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            background: rgba(255, 255, 255, 0.06);
            border-radius: 50px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.3);
            transform: translateY(-2px);
        }

        .banner-visual {
            position: relative;
        }

        .banner-visual img {
            width: 100%;
            border-radius: 20px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7), 0 0 40px rgba(255, 69, 0, 0.2);
            border: 1px solid rgba(255, 69, 0, 0.2);
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        .banner-badge-float {
            position: absolute;
            bottom: -20px;
            left: -20px;
            background: linear-gradient(135deg, #FF4500, #FF0000);
            padding: 16px 24px;
            border-radius: 14px;
            box-shadow: var(--fire-glow);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .banner-badge-float i {
            font-size: 28px;
            color: #fff;
        }

        .banner-badge-float .badge-text {
            font-weight: 800;
            font-size: 18px;
            color: #fff;
            line-height: 1.2;
        }

        .banner-badge-float .badge-text small {
            display: block;
            font-weight: 500;
            font-size: 12px;
            opacity: 0.85;
        }

        /* ===== MAIN SECTIONS ===== */
        main {
            padding-bottom: 60px;
        }

        .section {
            padding: 70px 0;
        }

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

        .section-title {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            color: var(--text);
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--muted);
            line-height: 1.7;
            max-width: 600px;
            margin-bottom: 40px;
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 40px;
            flex-wrap: wrap;
            gap: 20px;
        }

        .section-header-left {
            flex: 1;
            min-width: 280px;
        }

        .section-tag {
            display: inline-block;
            padding: 6px 16px;
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--gold);
            background: rgba(255, 204, 0, 0.1);
            border-radius: 50px;
            margin-bottom: 12px;
            border: 1px solid rgba(255, 204, 0, 0.25);
        }

        /* ===== CAPABILITIES GRID ===== */
        .capabilities-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .capability-card {
            background: var(--surface-light);
            border-radius: var(--radius);
            padding: 32px 28px;
            border: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .capability-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--lava), var(--fire), transparent);
            opacity: 0;
            transition: var(--transition);
        }

        .capability-card:hover {
            border-color: rgba(255, 69, 0, 0.4);
            box-shadow: var(--lava-glow);
            transform: translateY(-4px);
        }

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

        .capability-icon {
            width: 52px;
            height: 52px;
            background: linear-gradient(135deg, rgba(255, 69, 0, 0.2), rgba(255, 0, 0, 0.15));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--gold);
            margin-bottom: 18px;
        }

        .capability-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }

        .capability-card p {
            font-size: 15px;
            color: var(--muted);
            line-height: 1.7;
        }

        /* ===== SCENARIOS ===== */
        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .scenario-item {
            display: flex;
            gap: 20px;
            padding: 28px;
            background: var(--surface-light);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            transition: var(--transition);
            align-items: flex-start;
        }

        .scenario-item:hover {
            border-color: rgba(255, 204, 0, 0.35);
            box-shadow: var(--gold-glow);
            transform: translateX(4px);
        }

        .scenario-number {
            font-size: 40px;
            font-weight: 900;
            color: rgba(255, 69, 0, 0.3);
            line-height: 1;
            flex-shrink: 0;
            min-width: 50px;
        }

        .scenario-content h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }

        .scenario-content p {
            font-size: 15px;
            color: var(--muted);
            line-height: 1.7;
        }

        /* ===== TRUST / LICENSES ===== */
        .trust-wall {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .trust-item {
            text-align: center;
            padding: 28px 16px;
            background: var(--surface-light);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .trust-item:hover {
            border-color: rgba(255, 204, 0, 0.4);
            transform: translateY(-3px);
            box-shadow: var(--gold-glow);
        }

        .trust-item i {
            font-size: 36px;
            color: var(--gold);
            margin-bottom: 14px;
            display: block;
        }

        .trust-item h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }

        .trust-item p {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.5;
        }

        /* ===== PROCESS ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .process-step {
            position: relative;
            padding: 30px 24px;
            background: var(--surface-light);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .process-step:hover {
            border-color: rgba(255, 69, 0, 0.4);
            box-shadow: var(--lava-glow);
        }

        .process-step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--lava), var(--fire));
            border-radius: 50%;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 18px;
            box-shadow: var(--fire-glow);
        }

        .process-step h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }

        .process-step p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: var(--surface-light);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(255, 69, 0, 0.3);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            gap: 16px;
            transition: var(--transition);
            user-select: none;
            width: 100%;
            text-align: left;
        }

        .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        .faq-question i {
            flex-shrink: 0;
            font-size: 16px;
            color: var(--gold);
            transition: var(--transition);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--muted);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #1a0a00 0%, #0B0B0B 50%, #1a0000 100%);
            border-radius: 24px;
            padding: 60px 40px;
            text-align: center;
            border: 1px solid rgba(255, 69, 0, 0.25);
            position: relative;
            overflow: hidden;
            margin: 60px 0;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 800px;
            height: 800px;
            background: radial-gradient(circle, rgba(255, 69, 0, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 36px;
            font-weight: 900;
            margin-bottom: 16px;
            color: var(--text);
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 17px;
            color: var(--muted);
            max-width: 500px;
            margin: 0 auto 30px;
            position: relative;
            z-index: 1;
        }

        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: #050505;
            border-top: 1px solid rgba(255, 69, 0, 0.2);
            padding: 60px 0 30px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .footer-brand h3 span {
            color: var(--gold);
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            max-width: 350px;
        }

        .footer-column h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
        }

        .footer-column ul {
            list-style: none;
        }

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

        .footer-column ul li a {
            font-size: 14px;
            color: var(--muted);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-column ul li a:hover {
            color: var(--gold);
            transform: translateX(3px);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 30px;
            border-top: 1px solid var(--border);
            flex-wrap: wrap;
            gap: 16px;
        }

        .footer-bottom span {
            font-size: 13px;
            color: var(--muted);
        }

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

        .badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 6px 12px;
            font-size: 13px;
            font-weight: 800;
            color: #fff;
            background: linear-gradient(135deg, #D32F2F, #FF0000);
            border-radius: 6px;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        .badge-license {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--gold);
            background: rgba(255, 204, 0, 0.1);
            border-radius: 6px;
            border: 1px solid rgba(255, 204, 0, 0.3);
        }

        /* ===== FAB ===== */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            background: rgba(0, 0, 0, 0.75);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: 50%;
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0.75)), linear-gradient(135deg, #00F0FF, #FF4500, #FF007F);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--gold);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.4);
            transition: var(--transition);
            opacity: 0.75;
            cursor: pointer;
            animation: fabBreath 3s ease-in-out infinite;
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 40px rgba(0, 240, 255, 0.7);
        }

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

        .fab .notification-dot {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 14px;
            height: 14px;
            background: #FF007F;
            border-radius: 50%;
            border: 2px solid #0B0B0B;
            animation: blink 1.5s ease-in-out infinite;
        }

        @keyframes fabBreath {
            0%, 100% { box-shadow: 0 0 25px rgba(0, 240, 255, 0.35); }
            50% { box-shadow: 0 0 45px rgba(0, 240, 255, 0.6); }
        }

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

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .banner-content {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .banner-text h1 {
                font-size: 36px;
            }
            .capabilities-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .trust-wall {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
                flex-wrap: wrap;
                padding: 10px 0;
            }
            .logo-text {
                font-size: 14px;
                max-width: 150px;
            }
            .nav-links {
                position: fixed;
                top: 64px;
                left: 0;
                width: 100%;
                background: rgba(11, 11, 11, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 6px;
                border-bottom: 1px solid rgba(255, 69, 0, 0.2);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.8);
                display: none;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                padding: 14px 18px;
                font-size: 15px;
                border-radius: 10px;
            }
            .nav-links a.active::after {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .auth-buttons {
                gap: 8px;
            }
            .btn-login {
                padding: 8px 14px;
                font-size: 13px;
            }
            .btn-signup {
                padding: 8px 16px;
                font-size: 13px;
            }
            .page-banner {
                padding-top: 110px;
                padding-bottom: 40px;
            }
            .banner-text h1 {
                font-size: 30px;
            }
            .banner-meta {
                gap: 12px;
            }
            .banner-badge-float {
                left: 0;
                bottom: -15px;
                padding: 12px 18px;
            }
            .banner-badge-float i {
                font-size: 22px;
            }
            .banner-badge-float .badge-text {
                font-size: 15px;
            }
            .section {
                padding: 50px 0;
            }
            .section-title {
                font-size: 28px;
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .capabilities-grid {
                grid-template-columns: 1fr;
            }
            .scenarios-grid {
                grid-template-columns: 1fr;
            }
            .trust-wall {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .cta-section {
                padding: 40px 20px;
            }
            .cta-section h2 {
                font-size: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 14px;
            }
            .fab {
                width: 50px;
                height: 50px;
                font-size: 20px;
                left: 12px;
                bottom: 80px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .banner-text h1 {
                font-size: 26px;
            }
            .banner-text .subtitle {
                font-size: 15px;
            }
            .btn-primary, .btn-secondary {
                padding: 12px 22px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }
            .banner-actions {
                flex-direction: column;
            }
            .banner-badge-float {
                position: relative;
                bottom: auto;
                left: auto;
                margin-top: -10px;
                width: fit-content;
            }
            .banner-visual img {
                aspect-ratio: 16/10;
            }
            .section-title {
                font-size: 24px;
            }
            .trust-wall {
                grid-template-columns: 1fr;
            }
            .auth-buttons {
                gap: 6px;
            }
            .btn-login {
                padding: 7px 12px;
                font-size: 12px;
            }
            .btn-signup {
                padding: 7px 14px;
                font-size: 12px;
            }
            .logo-text {
                font-size: 12px;
                max-width: 120px;
            }
            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 17px;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #08090F;
            --bg-secondary: #0D111E;
            --bg-card: #111827;
            --accent-primary: #0052FF;
            --accent-secondary: #00F0FF;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #64748B;
            --border-color: #1E293B;
            --border-accent: rgba(0, 240, 255, 0.3);
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.6);
            --shadow-neon: 0 0 20px rgba(0, 240, 255, 0.3);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 32px;
            --spacing-lg: 56px;
            --spacing-xl: 80px;
            --font-base: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

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

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }

        /* Header / Nav */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(8, 9, 15, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(30, 41, 59, 0.5);
            transition: background var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(8, 9, 15, 0.95);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: var(--spacing-sm);
        }

        .logo {
            font-weight: 700;
            font-size: 1.1rem;
            line-height: 1.3;
            color: var(--text-primary);
            max-width: 280px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .logo .highlight {
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
        }

        .nav-links a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 6px 0;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--accent-secondary);
        }

        .nav-links a.active {
            color: var(--accent-secondary);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-login {
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }

        .btn-login:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-primary), #0066FF);
            color: white;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 14px rgba(0, 82, 255, 0.35);
            transition: all var(--transition-fast);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 82, 255, 0.5);
        }

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

        .nav-toggle {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.5rem;
            padding: 4px;
        }

        /* Article Hero */
        .article-hero {
            padding-top: 120px;
            padding-bottom: 40px;
            background: linear-gradient(180deg, rgba(0, 82, 255, 0.08) 0%, transparent 100%);
            border-bottom: 1px solid var(--border-color);
        }

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

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

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

        .breadcrumb .separator {
            color: var(--text-muted);
            opacity: 0.5;
        }

        .breadcrumb .current {
            color: var(--accent-secondary);
            font-weight: 500;
        }

        .article-hero h1 {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #FFFFFF 30%, var(--accent-secondary) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

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

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

        .article-category-tag {
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent-secondary);
            padding: 6px 14px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.8rem;
            border: 1px solid rgba(0, 240, 255, 0.3);
        }

        /* Article Content */
        .article-content-wrapper {
            padding: 48px 0;
        }

        .article-main {
            max-width: 800px;
        }

        .article-body {
            color: var(--text-secondary);
            font-size: 1.05rem;
            line-height: 1.7;
        }

        .article-body h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 40px 0 16px;
            line-height: 1.3;
        }

        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 32px 0 12px;
            line-height: 1.3;
        }

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

        .article-body strong {
            color: var(--text-primary);
            font-weight: 600;
        }

        .article-body a {
            color: var(--accent-secondary);
            border-bottom: 1px solid rgba(0, 240, 255, 0.4);
            transition: all var(--transition-fast);
        }

        .article-body a:hover {
            border-bottom-color: var(--accent-secondary);
        }

        .article-body ul,
        .article-body ol {
            margin: 16px 0 20px 24px;
        }

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

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

        .article-not-found {
            text-align: center;
            padding: 80px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
        }

        .article-not-found i {
            font-size: 3rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .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: 8px;
            background: linear-gradient(135deg, var(--accent-primary), #0066FF);
            color: white;
            font-weight: 600;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            box-shadow: 0 4px 14px rgba(0, 82, 255, 0.3);
        }

        .btn-back-home:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 82, 255, 0.5);
        }

        /* Related Section */
        .related-section {
            padding: 48px 0 64px;
            border-top: 1px solid var(--border-color);
        }

        .related-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 28px;
            color: var(--text-primary);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
        }

        .related-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .related-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 240, 255, 0.4);
            box-shadow: 0 8px 24px rgba(0, 240, 255, 0.15);
        }

        .related-card-image {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background: var(--bg-secondary);
        }

        .related-card-body {
            padding: 20px;
        }

        .related-card-body h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* CTA Section */
        .cta-section {
            padding: 64px 0;
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.1) 0%, rgba(0, 240, 255, 0.05) 100%);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .cta-box {
            background: var(--bg-card);
            border: 1px solid rgba(0, 240, 255, 0.3);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.05) 0%, transparent 60%);
            animation: ctaGlow 8s ease-in-out infinite;
        }

        @keyframes ctaGlow {
            0%, 100% { transform: translate(0, 0); }
            50% { transform: translate(10%, 10%); }
        }

        .cta-box h2 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }

        .cta-box p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto 28px;
            position: relative;
            z-index: 1;
        }

        .cta-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .btn-primary-cta {
            background: linear-gradient(135deg, var(--accent-primary), #0066FF);
            color: white;
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 14px rgba(0, 82, 255, 0.4);
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 82, 255, 0.6);
        }

        .btn-secondary-cta {
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1rem;
            padding: 14px 24px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-secondary-cta:hover {
            border-color: var(--accent-secondary);
            color: var(--accent-secondary);
        }

        /* FAB */
        .fab-support {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(8, 9, 15, 0.75);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(8, 9, 15, 0.75), rgba(8, 9, 15, 0.75)), linear-gradient(135deg, #00F0FF, #0052FF);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-secondary);
            font-size: 1.4rem;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.35);
            transition: all var(--transition-base);
            opacity: 0.65;
            animation: fabBreath 3s ease-in-out infinite;
        }

        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 32px rgba(0, 240, 255, 0.6);
            animation: none;
        }

        .fab-support:active {
            transform: scale(0.95);
            border-color: #FF007F;
            box-shadow: 0 0 32px rgba(255, 0, 127, 0.6);
        }

        .fab-support .notification-dot {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            background: #FF007F;
            border-radius: 50%;
            border: 2px solid var(--bg-primary);
            animation: dotBlink 1.5s ease-in-out infinite;
        }

        @keyframes fabBreath {
            0%, 100% { opacity: 0.6; }
            50% { opacity: 0.85; }
        }

        @keyframes dotBlink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 56px 0 32px;
        }

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

        .footer-brand h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.4;
            color: var(--text-primary);
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .footer-column h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .footer-column ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

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

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-badges {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .badge-18 {
            background: rgba(255, 0, 0, 0.15);
            color: #FF4444;
            font-weight: 700;
            padding: 6px 12px;
            border-radius: 4px;
            border: 1px solid rgba(255, 0, 0, 0.3);
            font-size: 0.75rem;
        }

        .badge-license {
            background: rgba(0, 240, 255, 0.08);
            color: var(--accent-secondary);
            padding: 6px 12px;
            border-radius: 4px;
            border: 1px solid rgba(0, 240, 255, 0.25);
            font-size: 0.75rem;
            font-weight: 500;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            
            .article-hero h1 {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(8, 9, 15, 0.98);
                flex-direction: column;
                padding: 20px;
                gap: 16px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links a {
                font-size: 1rem;
                padding: 8px 0;
            }

            .nav-toggle {
                display: block;
            }

            .nav-actions {
                gap: 8px;
            }

            .btn-login {
                padding: 6px 12px;
                font-size: 0.8rem;
            }

            .btn-signup {
                padding: 8px 16px;
                font-size: 0.8rem;
            }

            .logo {
                max-width: 180px;
                font-size: 0.9rem;
            }

            .article-hero {
                padding-top: 100px;
                padding-bottom: 32px;
            }

            .article-hero h1 {
                font-size: 1.5rem;
            }

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

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

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

            .cta-box h2 {
                font-size: 1.4rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

            .fab-support {
                left: 12px;
                bottom: 80px;
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                border-radius: 14px;
            }
        }

        @media (max-width: 520px) {
            .nav-actions {
                gap: 6px;
            }

            .btn-login {
                padding: 6px 10px;
                font-size: 0.75rem;
            }

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

            .logo {
                max-width: 130px;
                font-size: 0.8rem;
            }

            .article-hero h1 {
                font-size: 1.3rem;
            }

            .article-meta {
                gap: 12px;
                font-size: 0.75rem;
            }
        }