/* roulang page: index */
:root {
            --bg-page: #0E0F13;
            --bg-surface: #171A21;
            --bg-card: #1D2028;
            --bg-felt: #0C3628;
            --bg-gold-glow: rgba(197, 160, 89, 0.12);
            --border-soft: #2A2E36;
            --border-gold: rgba(197, 160, 89, 0.55);
            --gold: #C5A059;
            --gold-bright: #FFBF00;
            --gold-pale: #E8D5B0;
            --amber: #D4AC0D;
            --text-primary: #F5F5F7;
            --text-body: #C5C8CE;
            --text-muted: #8A8F98;
            --danger: #D32F2F;
            --success: #2E7D32;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --shadow-card: 0 16px 44px rgba(0, 0, 0, 0.45);
            --shadow-gold: 0 8px 30px rgba(197, 160, 89, 0.18);
            --shadow-felt: 0 14px 40px rgba(12, 54, 40, 0.5);
            --font-family: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg-page);
            color: var(--text-body);
            line-height: 1.62;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

        .container-wide {
            max-width: 1220px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 96px 0;
        }

        .section-tight {
            padding: 64px 0;
        }

        .section-felt {
            background: var(--bg-felt);
            background-image: radial-gradient(circle at 30% 20%, rgba(197, 160, 89, 0.1) 0%, transparent 45%),
                              radial-gradient(circle at 75% 85%, rgba(12, 54, 40, 0.3) 0%, transparent 50%);
            position: relative;
        }

        .section-felt::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5L52 17v26L30 55 8 43V17L30 5z' fill='none' stroke='rgba(197,160,89,0.04)' stroke-width='1.5'/%3E%3C/svg%3E");
            pointer-events: none;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.18em;
            text-transform: uppercase;
            color: var(--gold-pale);
            margin-bottom: 14px;
        }

        .section-label::before,
        .section-label::after {
            content: '';
            height: 1px;
            width: 28px;
            background: linear-gradient(90deg, transparent, var(--gold));
        }

        .section-label::after {
            background: linear-gradient(90deg, var(--gold), transparent);
        }

        .section-title {
            font-size: clamp(1.7rem, 3.2vw, 2.5rem);
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.015em;
            line-height: 1.25;
            margin-bottom: 18px;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-body);
            line-height: 1.65;
            max-width: 760px;
            margin-bottom: 40px;
        }

        .section-head-row {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 36px;
            flex-wrap: wrap;
        }

        .section-head-row .section-desc {
            margin-bottom: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 28px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            cursor: pointer;
            transition: var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
            min-height: 48px;
            line-height: 1.2;
        }

        .btn:focus-visible {
            outline: 3px solid var(--gold-bright);
            outline-offset: 3px;
        }

        .btn-gold {
            background: linear-gradient(135deg, #FFBF00 0%, #D4AC0D 45%, #C5A059 100%);
            color: #1A1400;
            border-color: #FFBF00;
            box-shadow: 0 6px 22px rgba(255, 191, 0, 0.25);
        }

        .btn-gold:hover {
            color: #1A1400;
            transform: translateY(-2px);
            box-shadow: 0 12px 34px rgba(255, 191, 0, 0.38);
        }

        .btn-gold:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(255, 191, 0, 0.2);
        }

        .btn-outline {
            background: transparent;
            border-color: var(--gold);
            color: var(--gold-pale);
        }

        .btn-outline:hover {
            background: rgba(197, 160, 89, 0.1);
            color: var(--gold-bright);
            border-color: var(--gold-bright);
        }

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

        .btn-sm {
            padding: 10px 18px;
            font-size: 0.82rem;
            min-height: 40px;
            gap: 7px;
        }

        .btn-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--gold-pale);
            font-weight: 600;
            font-size: 0.92rem;
        }

        .btn-link i {
            transition: transform 0.25s ease;
        }

        .btn-link:hover {
            color: var(--gold-bright);
        }

        .btn-link:hover i {
            transform: translateX(4px);
        }

        /* ===== HEADER ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(14, 15, 19, 0.82);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(197, 160, 89, 0.2);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(14, 15, 19, 0.95);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
            border-bottom-color: rgba(197, 160, 89, 0.35);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 14px 0;
            min-height: 68px;
        }

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

        .brand-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, #1D2028, #0C3628);
            border: 1.5px solid var(--border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.15rem;
            color: var(--gold-bright);
            flex-shrink: 0;
            box-shadow: 0 4px 14px rgba(197, 160, 89, 0.15);
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .brand-name {
            font-size: 0.92rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .brand-sub {
            font-size: 0.68rem;
            font-weight: 500;
            color: var(--gold-pale);
            letter-spacing: 0.12em;
            text-transform: uppercase;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 10px 16px;
            border-radius: 999px;
            font-size: 0.86rem;
            font-weight: 600;
            color: var(--text-body);
            letter-spacing: 0.02em;
            transition: var(--transition);
            position: relative;
        }

        .nav-links a:hover {
            color: var(--gold-pale);
            background: rgba(197, 160, 89, 0.07);
        }

        .nav-links a.active {
            color: var(--gold-bright);
            background: rgba(197, 160, 89, 0.12);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 6px;
            left: 50%;
            transform: translateX(-50%);
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--gold-bright);
        }

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

        .btn-login {
            padding: 10px 18px;
            border-radius: 999px;
            font-size: 0.84rem;
            font-weight: 600;
            color: var(--text-body);
            border: 1px solid var(--border-soft);
            background: transparent;
            transition: var(--transition);
            min-height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .btn-login:hover {
            border-color: var(--gold);
            color: var(--gold-pale);
            background: rgba(197, 160, 89, 0.08);
        }

        .btn-signup {
            padding: 10px 24px;
            min-height: 40px;
            border-radius: 999px;
            font-size: 0.84rem;
            font-weight: 700;
            background: linear-gradient(135deg, #FFBF00 0%, #D4AC0D 50%, #C5A059 100%);
            color: #1A1400;
            border: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            box-shadow: 0 4px 16px rgba(255, 191, 0, 0.25);
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-signup:hover {
            box-shadow: 0 8px 26px rgba(255, 191, 0, 0.4);
            transform: translateY(-1px);
            color: #1A1400;
        }

        .btn-signup:active {
            transform: translateY(0);
            box-shadow: 0 3px 10px rgba(255, 191, 0, 0.2);
        }

        .header-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-soft);
            border-radius: 10px;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            color: var(--text-primary);
            font-size: 1.2rem;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .header-toggle:hover {
            border-color: var(--gold);
            color: var(--gold-bright);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            padding: 16px 0 20px;
            border-top: 1px solid rgba(197, 160, 89, 0.15);
            background: rgba(14, 15, 19, 0.98);
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            z-index: 999;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            padding: 13px 24px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-body);
            border-left: 3px solid transparent;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--gold-bright);
            background: rgba(197, 160, 89, 0.08);
            border-left-color: var(--gold-bright);
        }

        .mobile-menu .mobile-auth {
            display: flex;
            gap: 10px;
            padding: 14px 24px 6px;
        }

        /* ===== HERO ===== */
        .hero {
            position: relative;
            padding: 170px 0 100px;
            min-height: 660px;
            display: flex;
            align-items: center;
            background-image: linear-gradient(135deg, rgba(14, 15, 19, 0.88) 0%, rgba(14, 15, 19, 0.6) 45%, rgba(12, 54, 40, 0.7) 100%), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 90%, rgba(197, 160, 89, 0.1) 0%, transparent 55%);
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
            text-align: left;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 8px 18px;
            border-radius: 999px;
            background: rgba(197, 160, 89, 0.12);
            border: 1px solid var(--border-gold);
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--gold-pale);
            letter-spacing: 0.16em;
            text-transform: uppercase;
            margin-bottom: 22px;
        }

        .hero-tag i {
            font-size: 0.8rem;
            color: var(--gold-bright);
        }

        .hero h1 {
            font-size: clamp(2rem, 4.6vw, 3.4rem);
            font-weight: 900;
            color: var(--text-primary);
            line-height: 1.2;
            letter-spacing: -0.015em;
            margin-bottom: 20px;
        }

        .hero h1 .highlight {
            background: linear-gradient(135deg, #FFBF00 0%, #C5A059 60%, #E8D5B0 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.05rem;
            color: var(--text-body);
            line-height: 1.65;
            max-width: 640px;
            margin-bottom: 26px;
        }

        .hero-points {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-bottom: 30px;
        }

        .hero-points li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.92rem;
            color: var(--text-body);
            font-weight: 500;
        }

        .hero-points li i {
            color: var(--gold-bright);
            font-size: 0.85rem;
            flex-shrink: 0;
            width: 20px;
            text-align: center;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 32px;
        }

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 18px 32px;
            padding-top: 22px;
            border-top: 1px solid rgba(197, 160, 89, 0.25);
        }

        .hero-trust span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            color: var(--text-muted);
            font-weight: 500;
            letter-spacing: 0.02em;
        }

        .hero-trust span i {
            color: var(--gold-bright);
            font-size: 0.9rem;
        }

        /* ===== TIMELINE (Method) ===== */
        .timeline-wrap {
            position: relative;
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .timeline-wrap::before {
            content: '';
            position: absolute;
            left: 20px;
            top: 4px;
            bottom: 4px;
            width: 2px;
            background: linear-gradient(180deg, var(--gold), rgba(197, 160, 89, 0.35), transparent);
        }

        .timeline-item {
            position: relative;
            padding-left: 58px;
            padding-bottom: 38px;
        }

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

        .timeline-dot {
            position: absolute;
            left: 6px;
            top: 4px;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-surface);
            border: 2.5px solid var(--gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            color: var(--gold-bright);
            font-weight: 700;
            box-shadow: 0 0 0 6px rgba(197, 160, 89, 0.08);
        }

        .timeline-card {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .timeline-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold);
            transform: translateY(-3px);
        }

        .timeline-step {
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: var(--gold-pale);
            margin-bottom: 8px;
            display: block;
        }

        .timeline-card h3 {
            font-size: 1.12rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .timeline-card p {
            font-size: 0.9rem;
            color: var(--text-body);
            line-height: 1.6;
        }

        /* ===== STRATEGY CARDS ===== */
        .strategy-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .strategy-card {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            min-height: 100%;
        }

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

        .strategy-card-img {
            height: 190px;
            overflow: hidden;
            position: relative;
        }

        .strategy-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 0%, rgba(14, 15, 19, 0.72) 100%);
        }

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

        .strategy-card:hover .strategy-card-img img {
            transform: scale(1.06);
        }

        .strategy-card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 3;
            padding: 6px 14px;
            border-radius: 999px;
            background: rgba(14, 15, 19, 0.75);
            border: 1px solid var(--border-gold);
            font-size: 0.68rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--gold-pale);
            backdrop-filter: blur(6px);
        }

        .strategy-card-body {
            padding: 22px 24px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .strategy-card-body h3 {
            font-size: 1.14rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.35;
        }

        .strategy-card-body p {
            font-size: 0.9rem;
            color: var(--text-body);
            line-height: 1.6;
            margin-bottom: 18px;
            flex: 1;
        }

        .strategy-card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.78rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .strategy-card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .strategy-card-meta i {
            color: var(--gold-bright);
            font-size: 0.75rem;
        }

        /* ===== NEWS (CMS) ===== */
        .news-layout {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 36px;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .news-card {
            display: flex;
            flex-direction: column;
            gap: 8px;
            padding: 20px 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            cursor: pointer;
            position: relative;
        }

        .news-card::before {
            content: '';
            position: absolute;
            left: 0;
            top: 18px;
            bottom: 18px;
            width: 3px;
            background: var(--gold);
            border-radius: 0 4px 4px 0;
            opacity: 0;
            transition: var(--transition);
        }

        .news-card:hover {
            border-color: var(--border-gold);
            padding-left: 30px;
            background: var(--bg-surface);
        }

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

        .news-category {
            font-size: 0.68rem;
            font-weight: 700;
            letter-spacing: 0.11em;
            text-transform: uppercase;
            color: var(--gold-pale);
        }

        .news-card h3 {
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
            margin: 0;
        }

        .news-card .news-excerpt {
            font-size: 0.86rem;
            color: var(--text-muted);
            line-height: 1.55;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card time {
            font-size: 0.76rem;
            font-weight: 500;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .news-card time i {
            font-size: 0.7rem;
            color: var(--gold-bright);
        }

        .news-sidebar {
            background: var(--bg-felt);
            border-radius: var(--radius-md);
            border: 1px solid rgba(197, 160, 89, 0.25);
            padding: 28px 26px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-felt);
        }

        .news-sidebar::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 191, 0, 0.18) 0%, transparent 70%);
            pointer-events: none;
        }

        .news-sidebar h3 {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .news-sidebar p {
            font-size: 0.88rem;
            color: var(--text-body);
            line-height: 1.6;
            margin-bottom: 18px;
        }

        .empty-state {
            text-align: center;
            padding: 42px 20px;
            color: var(--text-muted);
            font-size: 1rem;
            font-weight: 500;
            border: 2px dashed var(--border-soft);
            border-radius: var(--radius-md);
        }

        /* ===== MINDSET / QUOTE ===== */
        .mindset-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: stretch;
        }

        .mindset-main {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 32px 34px;
            box-shadow: var(--shadow-card);
        }

        .mindset-main h3 {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 18px;
        }

        .mindset-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .mindset-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 0.92rem;
            color: var(--text-body);
            line-height: 1.6;
        }

        .mindset-list li i {
            color: var(--gold-bright);
            font-size: 0.9rem;
            margin-top: 4px;
            flex-shrink: 0;
        }

        .mindset-quote {
            background: linear-gradient(135deg, #1D2028 0%, #0C3628 70%);
            border: 1px solid rgba(197, 160, 89, 0.4);
            border-radius: var(--radius-lg);
            padding: 32px 34px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            box-shadow: var(--shadow-felt);
            position: relative;
            overflow: hidden;
        }

        .mindset-quote::before {
            content: '\201C';
            font-size: 5rem;
            font-weight: 900;
            color: rgba(197, 160, 89, 0.25);
            position: absolute;
            top: 18px;
            left: 22px;
            line-height: 1;
        }

        .mindset-quote blockquote {
            font-size: 1.06rem;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.65;
            font-style: italic;
            margin: 18px 0 20px;
            position: relative;
            z-index: 2;
            padding-left: 28px;
        }

        .mindset-quote .quote-author {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--gold-pale);
            letter-spacing: 0.04em;
            display: flex;
            align-items: center;
            gap: 8px;
            position: relative;
            z-index: 2;
        }

        .mindset-quote .quote-author i {
            color: var(--gold-bright);
        }

        /* ===== BOOKS / TOOLS ===== */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .resource-card {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            min-height: 100%;
        }

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

        .resource-img {
            height: 150px;
            overflow: hidden;
            position: relative;
        }

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

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

        .resource-body {
            padding: 22px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .resource-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.35;
        }

        .resource-body p {
            font-size: 0.86rem;
            color: var(--text-body);
            line-height: 1.6;
            margin-bottom: 16px;
            flex: 1;
        }

        .resource-rating {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            color: var(--gold-pale);
            font-weight: 600;
        }

        .resource-rating i {
            color: var(--gold-bright);
            font-size: 0.75rem;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 24px;
            cursor: pointer;
            border: none;
            background: transparent;
            width: 100%;
            text-align: left;
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            transition: var(--transition);
        }

        .faq-question i {
            font-size: 0.8rem;
            color: var(--gold-bright);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 24px;
        }

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

        .faq-answer p {
            font-size: 0.92rem;
            color: var(--text-body);
            line-height: 1.65;
            margin: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #0C3628 0%, #1D2028 55%, #0E0F13 100%);
            border-top: 1px solid rgba(197, 160, 89, 0.3);
            border-bottom: 1px solid rgba(197, 160, 89, 0.3);
            padding: 84px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 540px;
            height: 540px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(197, 160, 89, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-content {
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        .cta-content h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            margin-bottom: 16px;
        }

        .cta-content p {
            font-size: 1rem;
            color: var(--text-body);
            line-height: 1.6;
            margin-bottom: 28px;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }

        /* ===== SECURITY STRIP ===== */
        .security-strip {
            border-top: 1px solid rgba(197, 160, 89, 0.2);
            padding: 36px 0 18px;
            margin-top: 40px;
        }

        .security-strip .security-inner {
            display: flex;
            flex-wrap: wrap;
            gap: 18px 36px;
            justify-content: center;
        }

        .security-strip .sec-item {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            font-size: 0.82rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .security-strip .sec-item i {
            color: #2E7D32;
            font-size: 1rem;
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: #0B0C0F;
            padding: 64px 0 28px;
            border-top: 1px solid rgba(197, 160, 89, 0.25);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.3fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 42px;
        }

        .footer-brand .brand {
            margin-bottom: 16px;
        }

        .footer-about p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.65;
            max-width: 340px;
        }

        .footer-col h4 {
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.11em;
            text-transform: uppercase;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 2px;
            background: var(--gold-bright);
            border-radius: 4px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul a {
            font-size: 0.86rem;
            color: var(--text-muted);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-col ul a:hover {
            color: var(--gold-pale);
            transform: translateX(4px);
        }

        .footer-col ul a i {
            font-size: 0.65rem;
            color: var(--gold-bright);
        }

        .footer-bottom {
            border-top: 1px solid rgba(197, 160, 89, 0.15);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 14px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-bottom .copyright {
            font-weight: 500;
        }

        .footer-bottom .copyright strong {
            color: var(--gold-pale);
            font-weight: 600;
        }

        .footer-bottom .legal-links {
            display: flex;
            gap: 18px;
        }

        .footer-bottom .legal-links a {
            color: var(--text-muted);
            font-size: 0.8rem;
        }

        .footer-bottom .legal-links a:hover {
            color: var(--gold-pale);
        }

        /* ===== FAB ===== */
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 20px;
            background: rgba(14, 15, 19, 0.75);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-radius: 999px;
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(14, 15, 19, 0.75), rgba(14, 15, 19, 0.75)), linear-gradient(135deg, #FFBF00, #C5A059);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            box-shadow: 0 6px 28px rgba(197, 160, 89, 0.28);
            cursor: pointer;
            text-decoration: none;
            transition: var(--transition);
            min-width: 52px;
            min-height: 52px;
            justify-content: center;
            animation: fab-breathe 3.2s ease-in-out infinite;
        }

        @keyframes fab-breathe {
            0%, 100% { opacity: 0.72; box-shadow: 0 6px 24px rgba(197, 160, 89, 0.22); }
            50% { opacity: 1; box-shadow: 0 8px 36px rgba(197, 160, 89, 0.4); }
        }

        .fab-left:hover {
            opacity: 1 !important;
            transform: scale(1.06);
            box-shadow: 0 10px 40px rgba(255, 191, 0, 0.45);
        }

        .fab-left:active {
            transform: scale(0.96);
        }

        .fab-left .fab-icon {
            font-size: 1.1rem;
            color: var(--gold-bright);
            position: relative;
            display: flex;
            align-items: center;
        }

        .fab-left .fab-icon::after {
            content: '';
            position: absolute;
            top: -3px;
            right: -6px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--danger);
            border: 1.5px solid rgba(14, 15, 19, 0.8);
            animation: blink-dot 1.6s ease-in-out infinite;
        }

        @keyframes blink-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(0.7); }
        }

        .fab-left .fab-text {
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--gold-pale);
            letter-spacing: 0.05em;
            white-space: nowrap;
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .section {
                padding: 72px 0;
            }

            .hero {
                padding: 140px 0 80px;
                min-height: 560px;
            }

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

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

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

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
                gap: 12px;
                min-height: 60px;
                padding: 10px 0;
            }

            .nav-links {
                display: none;
            }

            .header-toggle {
                display: flex;
            }

            .header-actions {
                margin-left: auto;
                gap: 8px;
            }

            .header-actions .btn-login {
                padding: 8px 14px;
                font-size: 0.78rem;
                min-height: 36px;
            }

            .header-actions .btn-signup {
                padding: 8px 18px;
                font-size: 0.78rem;
                min-height: 36px;
            }

            .hero {
                padding: 120px 0 64px;
                min-height: 520px;
                background-position: 35% center;
            }

            .hero-actions {
                flex-direction: column;
            }

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

            .strategy-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .mindset-block {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .resource-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .section-head-row {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-actions {
                flex-direction: column;
                align-items: center;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 26px;
            }

            .fab-left {
                left: 12px;
                bottom: 72px;
                padding: 10px 16px;
            }

            .fab-left .fab-text {
                display: none;
            }

            .fab-left {
                min-width: 48px;
                min-height: 48px;
            }
        }

        @media (max-width: 520px) {
            .container-wide,
            .container-narrow {
                padding: 0 16px;
            }

            .section {
                padding: 56px 0;
            }

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

            .hero {
                padding: 110px 0 52px;
                min-height: 440px;
            }

            .hero h1 {
                font-size: 1.7rem;
            }

            .hero-desc {
                font-size: 0.92rem;
            }

            .hero-points li {
                font-size: 0.82rem;
            }

            .btn {
                padding: 12px 22px;
                font-size: 0.88rem;
                min-height: 44px;
            }

            .timeline-item {
                padding-left: 46px;
            }

            .timeline-wrap::before {
                left: 14px;
            }

            .timeline-dot {
                left: 0px;
                width: 24px;
                height: 24px;
                font-size: 0.65rem;
            }

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

            .strategy-card-img {
                height: 150px;
            }

            .strategy-card-body {
                padding: 18px 18px 20px;
            }

            .news-card {
                padding: 16px 18px;
            }

            .news-card:hover {
                padding-left: 22px;
            }

            .mindset-main,
            .mindset-quote {
                padding: 22px 20px;
            }

            .faq-question {
                font-size: 0.9rem;
                padding: 15px 18px;
            }

            .faq-answer {
                padding: 0 18px;
            }

            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }

            .cta-section {
                padding: 56px 0;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 12px;
            }

            .footer-bottom .legal-links {
                flex-wrap: wrap;
                justify-content: center;
            }

            .security-strip .security-inner {
                flex-direction: column;
                align-items: center;
                gap: 10px;
            }
        }

/* roulang page: article */
/* ==================== DESIGN VARIABLES ==================== */
        :root {
            /* Colors - Royal Dark VIP Lounge */
            --bg-primary: #0F1216;
            --bg-secondary: #16191F;
            --bg-tertiary: #1D2027;
            --bg-elevated: #22262E;
            --bg-article: #15181D;
            --accent-gold: #D4AF37;
            --accent-amber: #FFBF00;
            --accent-bronze: #C5A059;
            --text-primary: #F5F5F7;
            --text-secondary: #D4AC0D;
            --text-body: #D5D8DC;
            --text-muted: #909099;
            --text-inactive: #6B6B72;
            --border-subtle: #2A2D33;
            --border-strong: #3A3E45;
            --success: #2ECC71;
            --danger: #E74C3C;
            --warning: #F39C12;
            --ruby: #B91C1C;
            --neon-green: #CCFF00;
            --neon-cyan: #00F0FF;

            /* Spacing */
            --space-xs: 0.5rem;
            --space-sm: 0.875rem;
            --space-md: 1.25rem;
            --space-lg: 2rem;
            --space-xl: 3rem;
            --space-2xl: 4.5rem;
            --space-3xl: 6rem;

            /* Border Radius */
            --radius-xs: 4px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;

            /* Shadows */
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.25);
            --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.45);
            --shadow-gold: 0 4px 24px rgba(212, 175, 55, 0.18);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);

            /* Typography */
            --font-primary: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --font-serif: 'Merriweather', Georgia, serif;
            --font-size-xs: 0.75rem;
            --font-size-sm: 0.875rem;
            --font-size-base: 1rem;
            --font-size-md: 1.125rem;
            --font-size-lg: 1.3rem;
            --font-size-xl: 1.6rem;
            --font-size-2xl: 2rem;
            --font-size-3xl: 2.5rem;
            --font-size-hero: 3rem;
            --line-height-body: 1.65;
            --line-height-heading: 1.3;

            /* Transitions */
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;

            /* Container widths */
            --container-max: 1200px;
            --container-wide: 1400px;
            --article-max: 720px;
        }

        /* ==================== BASE RESET ==================== */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-primary);
            font-size: var(--font-size-base);
            line-height: var(--line-height-body);
            color: var(--text-body);
            background-color: var(--bg-primary);
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

        a:hover, a:focus {
            color: var(--accent-amber);
        }

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

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

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

        ul, ol {
            list-style-position: inside;
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-primary);
            color: var(--text-primary);
            line-height: var(--line-height-heading);
            font-weight: 700;
            margin: 0 0 var(--space-sm);
        }

        /* ==================== CONTAINER ==================== */
        .container-wide {
            max-width: var(--container-wide);
            margin: 0 auto;
            padding: 0 var(--space-lg);
        }

        .container-main {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--space-lg);
        }

        .article-container {
            max-width: var(--article-max);
            margin: 0 auto;
            padding: 0 var(--space-md);
        }

        /* ==================== HEADER & NAVIGATION ==================== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(15, 18, 22, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            transition: all var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(15, 18, 22, 0.98);
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-md);
            padding: 0.75rem var(--space-lg);
            max-width: var(--container-wide);
            margin: 0 auto;
            min-height: 68px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            text-decoration: none;
            flex-shrink: 0;
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-bronze) 100%);
            border-radius: var(--radius-md);
            color: var(--bg-primary);
            font-size: 1.25rem;
            box-shadow: var(--shadow-gold);
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
        }

        .brand:hover .brand-icon {
            transform: translateY(-2px);
            box-shadow: 0 6px 28px rgba(212, 175, 55, 0.28);
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.25;
        }

        .brand-name {
            font-size: 1.05rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.01em;
        }

        .brand-sub {
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--text-secondary);
            letter-spacing: 0.02em;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }

        .nav-links a {
            display: inline-block;
            padding: 0.55rem 1rem;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-muted);
            text-decoration: none;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            position: relative;
        }

        .nav-links a:hover {
            color: var(--text-primary);
            background: var(--bg-elevated);
        }

        .nav-links a.active {
            color: var(--accent-gold);
            background: rgba(212, 175, 55, 0.08);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent-gold);
            border-radius: var(--radius-full);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }

        .btn-search {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-full);
            color: var(--text-muted);
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
            font-size: 0.9rem;
        }

        .btn-search:hover {
            color: var(--accent-gold);
            border-color: var(--accent-gold);
            background: rgba(212, 175, 55, 0.06);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.5rem 1.1rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-primary);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-sm);
            text-decoration: none;
            transition: all var(--transition-fast);
            background: transparent;
        }

        .btn-outline:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(212, 175, 55, 0.05);
        }

        .btn-solid-gold {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.55rem 1.2rem;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--bg-primary);
            background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-amber) 100%);
            border-radius: var(--radius-sm);
            text-decoration: none;
            transition: all var(--transition-base);
            box-shadow: 0 4px 16px rgba(212, 175, 55, 0.3);
        }

        .btn-solid-gold:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(212, 175, 55, 0.42);
            color: var(--bg-primary);
        }

        .mobile-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
        }

        .mobile-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .mobile-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .mobile-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .mobile-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            padding: 1rem var(--space-lg) 1.25rem;
            background: rgba(15, 18, 22, 0.98);
            border-top: 1px solid var(--border-subtle);
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            display: block;
            padding: 0.75rem 0.5rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-muted);
            border-bottom: 1px solid var(--border-subtle);
            text-decoration: none;
            transition: all var(--transition-fast);
        }

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

        .mobile-menu a:last-child {
            border-bottom: none;
        }

        /* ==================== BREADCRUMB ==================== */
        .breadcrumb-wrapper {
            padding-top: 100px;
            padding-bottom: 0.25rem;
            background: var(--bg-primary);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.4rem;
            font-size: 0.8rem;
            color: var(--text-muted);
            padding: 0.5rem 0;
        }

        .breadcrumb a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

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

        .breadcrumb .separator {
            color: var(--text-inactive);
            font-size: 0.65rem;
        }

        .breadcrumb .current {
            color: var(--accent-gold);
            font-weight: 600;
            max-width: 300px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /* ==================== ARTICLE HERO HEADER ==================== */
        .article-hero {
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-subtle);
            padding: var(--space-lg) 0 var(--space-xl);
            position: relative;
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.06;
            pointer-events: none;
            z-index: 1;
        }

        .article-hero > * {
            position: relative;
            z-index: 2;
        }

        .article-category-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.4rem 0.85rem;
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--accent-gold);
            background: rgba(212, 175, 55, 0.1);
            border: 1px solid rgba(212, 175, 55, 0.3);
            border-radius: var(--radius-full);
            margin-bottom: var(--space-md);
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem;
            margin-top: var(--space-md);
            padding-bottom: var(--space-sm);
            border-bottom: 1px solid var(--border-subtle);
        }

        .article-meta-item {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .article-meta-item i {
            color: var(--accent-gold);
            font-size: 0.82rem;
        }

        /* ==================== ARTICLE CONTENT ==================== */
        .article-body-wrapper {
            padding: var(--space-xl) 0 var(--space-2xl);
            background: var(--bg-primary);
        }

        .article-body {
            font-size: 1.02rem;
            line-height: var(--line-height-body);
            color: var(--text-body);
        }

        .article-body h1 {
            font-size: var(--font-size-2xl);
            font-weight: 800;
            color: var(--text-primary);
            margin: var(--space-lg) 0 var(--space-md);
            letter-spacing: -0.02em;
        }

        .article-body h2 {
            font-size: var(--font-size-xl);
            font-weight: 700;
            color: var(--text-primary);
            margin: var(--space-xl) 0 var(--space-sm);
            padding-bottom: 0.4rem;
            border-bottom: 2px solid rgba(212, 175, 55, 0.25);
            letter-spacing: -0.01em;
        }

        .article-body h3 {
            font-size: var(--font-size-lg);
            font-weight: 700;
            color: var(--text-primary);
            margin: var(--space-lg) 0 var(--space-sm);
        }

        .article-body h4 {
            font-size: var(--font-size-md);
            font-weight: 700;
            color: var(--text-primary);
            margin: var(--space-md) 0 var(--space-xs);
        }

        .article-body p {
            margin-bottom: var(--space-md);
            color: var(--text-body);
        }

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

        .article-body em {
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-body ul,
        .article-body ol {
            margin-bottom: var(--space-md);
            padding-left: 1.5rem;
        }

        .article-body ul {
            list-style: none;
            padding-left: 0;
        }

        .article-body ul li {
            position: relative;
            padding-left: 1.5rem;
            margin-bottom: 0.5rem;
            color: var(--text-body);
        }

        .article-body ul li::before {
            content: '\f054';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 0.15rem;
            font-size: 0.6rem;
            color: var(--accent-gold);
        }

        .article-body ol {
            padding-left: 1.5rem;
            counter-reset: article-list;
            list-style: none;
        }

        .article-body ol li {
            position: relative;
            padding-left: 1.5rem;
            margin-bottom: 0.5rem;
            color: var(--text-body);
            counter-increment: article-list;
        }

        .article-body ol li::before {
            content: counter(article-list) '.';
            position: absolute;
            left: 0;
            top: 0;
            font-weight: 700;
            color: var(--accent-gold);
        }

        .article-body blockquote {
            margin: var(--space-lg) 0;
            padding: var(--space-md) var(--space-lg);
            background: var(--bg-elevated);
            border-left: 4px solid var(--accent-gold);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-primary);
            font-size: 1.05rem;
        }

        .article-body blockquote p {
            margin-bottom: 0;
            color: var(--text-primary);
        }

        .article-body img {
            margin: var(--space-lg) 0;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            width: 100%;
            height: auto;
        }

        .article-body table {
            width: 100%;
            margin: var(--space-lg) 0;
            border-collapse: collapse;
            font-size: 0.9rem;
        }

        .article-body table th,
        .article-body table td {
            padding: 0.75rem 1rem;
            border: 1px solid var(--border-subtle);
            text-align: left;
        }

        .article-body table th {
            background: var(--bg-elevated);
            color: var(--text-primary);
            font-weight: 700;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.03em;
        }

        .article-body table td {
            color: var(--text-body);
        }

        .article-body code {
            font-family: 'Courier New', monospace;
            background: var(--bg-elevated);
            padding: 0.15rem 0.45rem;
            border-radius: var(--radius-xs);
            font-size: 0.88rem;
            color: var(--accent-amber);
            border: 1px solid var(--border-subtle);
        }

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

        .article-body a:hover {
            color: var(--accent-amber);
        }

        /* ==================== NOT FOUND STATE ==================== */
        .article-not-found {
            text-align: center;
            padding: var(--space-3xl) var(--space-md);
            max-width: 480px;
            margin: 0 auto;
        }

        .article-not-found .icon-large {
            font-size: 3.5rem;
            color: var(--text-inactive);
            margin-bottom: var(--space-md);
            display: block;
        }

        .article-not-found h2 {
            font-size: var(--font-size-xl);
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: var(--space-sm);
        }

        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: var(--space-lg);
            font-size: 1rem;
            line-height: var(--line-height-body);
        }

        /* ==================== CTA SECTION ==================== */
        .article-cta {
            padding: var(--space-xl) 0 var(--space-2xl);
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
        }

        .cta-card {
            display: flex;
            align-items: center;
            gap: var(--space-lg);
            background: linear-gradient(135deg, rgba(212, 175, 55, 0.08) 0%, rgba(22, 25, 31, 0.95) 60%);
            border: 1px solid rgba(212, 175, 55, 0.25);
            border-radius: var(--radius-lg);
            padding: var(--space-lg);
            box-shadow: var(--shadow-gold);
        }

        .cta-card-image {
            flex: 0 0 160px;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .cta-card-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        .cta-card-content {
            flex: 1;
            min-width: 0;
        }

        .cta-card-content h3 {
            font-size: var(--font-size-lg);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.35rem;
        }

        .cta-card-content p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: var(--space-md);
            line-height: var(--line-height-body);
        }

        .cta-card-actions {
            display: flex;
            gap: 0.75rem;
            flex-wrap: wrap;
        }

        /* ==================== FOOTER ==================== */
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid var(--border-subtle);
            padding: var(--space-xl) 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: var(--space-xl);
            padding-bottom: var(--space-xl);
            border-bottom: 1px solid var(--border-subtle);
        }

        .footer-brand .brand {
            margin-bottom: var(--space-sm);
        }

        .footer-about p {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: var(--line-height-body);
            margin-top: var(--space-sm);
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--space-md);
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

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

        .footer-col ul li {
            margin-bottom: 0.5rem;
        }

        .footer-col ul li a {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            color: var(--text-muted);
            font-size: 0.85rem;
            text-decoration: none;
            transition: all var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--accent-gold);
            transform: translateX(2px);
        }

        .footer-col ul li a i {
            font-size: 0.6rem;
            color: var(--accent-bronze);
        }

        .footer-bottom {
            padding: var(--space-md) 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.75rem;
        }

        .copyright {
            font-size: 0.82rem;
            color: var(--text-inactive);
        }

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

        /* ==================== FAB (Floating Action Button) ==================== */
        .fab-support {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.65rem 1rem 0.65rem 0.65rem;
            background: rgba(12, 14, 18, 0.65);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            border-radius: var(--radius-full);
            cursor: pointer;
            box-shadow: var(--shadow-neon);
            opacity: 0.6;
            transition: all var(--transition-base);
            min-height: 48px;
            min-width: 48px;
            font-family: var(--font-primary);
        }

        .fab-support::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: var(--radius-full);
            padding: 2px;
            background: linear-gradient(135deg, var(--neon-green) 0%, var(--neon-cyan) 100%);
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
        }

        .fab-support .fab-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: var(--radius-full);
            color: var(--neon-cyan);
            font-size: 0.95rem;
            flex-shrink: 0;
        }

        .fab-support .fab-text {
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .fab-support .fab-notification {
            position: absolute;
            top: -3px;
            right: -3px;
            width: 12px;
            height: 12px;
            background: var(--ruby);
            border-radius: 50%;
            border: 2px solid var(--bg-primary);
            animation: fab-blink 2s ease-in-out infinite;
        }

        @keyframes fab-blink {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.35; transform: scale(0.8); }
        }

        .fab-support:hover {
            opacity: 1;
            box-shadow: 0 0 22px rgba(0, 240, 255, 0.6), 0 0 12px rgba(204, 255, 0, 0.35);
            transform: translateY(-2px);
        }

        .fab-support:active {
            transform: scale(0.95) translateY(0);
            box-shadow: 0 0 10px rgba(255, 0, 127, 0.5);
            transition: all 0.08s ease;
        }

        /* ==================== RESPONSIVE ==================== */
        @media (max-width: 1024px) {
            :root {
                --space-lg: 1.5rem;
                --space-xl: 2rem;
                --space-2xl: 3rem;
                --space-3xl: 4rem;
                --font-size-hero: 2.2rem;
                --font-size-2xl: 1.7rem;
                --font-size-xl: 1.4rem;
            }

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

            .footer-brand {
                grid-column: span 2;
            }

            .cta-card {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-card-image {
                flex: none;
                width: 120px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                padding: 0.65rem var(--space-md);
                min-height: 60px;
            }

            .brand-name {
                font-size: 0.9rem;
            }

            .brand-sub {
                font-size: 0.68rem;
            }

            .brand-icon {
                width: 38px;
                height: 38px;
                font-size: 1.05rem;
            }

            .nav-links {
                display: none;
            }

            .nav-actions .btn-outline,
            .nav-actions .btn-solid-gold {
                display: none;
            }

            .mobile-toggle {
                display: flex;
            }

            .breadcrumb-wrapper {
                padding-top: 80px;
            }

            .cta-card {
                padding: var(--space-md);
            }

            .cta-card-content h3 {
                font-size: var(--font-size-md);
            }

            .fab-support {
                left: 0.75rem;
                bottom: 4.5rem;
                padding: 0.5rem 0.85rem 0.5rem 0.5rem;
                min-height: 44px;
                min-width: 44px;
            }

            .fab-support .fab-text {
                font-size: 0.72rem;
            }

            .fab-support .fab-icon {
                width: 28px;
                height: 28px;
                font-size: 0.85rem;
            }
        }

        @media (max-width: 520px) {
            :root {
                --space-md: 1rem;
                --space-lg: 1.25rem;
                --space-xl: 1.75rem;
                --space-2xl: 2.25rem;
                --font-size-base: 0.95rem;
                --font-size-md: 1rem;
                --font-size-lg: 1.15rem;
                --font-size-xl: 1.3rem;
                --font-size-2xl: 1.5rem;
            }

            .container-wide,
            .container-main {
                padding: 0 var(--space-md);
            }

            .article-container {
                padding: 0 var(--space-sm);
            }

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

            .footer-brand {
                grid-column: span 1;
            }

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

            .breadcrumb .current {
                max-width: 160px;
            }

            .article-meta {
                gap: 0.7rem;
            }

            .article-meta-item {
                font-size: 0.75rem;
            }

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

            .cta-card-actions .btn-solid-gold,
            .cta-card-actions .btn-outline {
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 360px) {
            .brand-name {
                font-size: 0.82rem;
            }

            .brand-sub {
                font-size: 0.62rem;
            }

            .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
            }
        }

/* roulang page: category1 */
/* ==========================================================================
           ROYAL DARK VIP LOUNGE — DESIGN SYSTEM
           Học Chơi Poker Chuyên Nghiệp
           ========================================================================== */
        :root {
            /* Primary Palette */
            --c-bg-primary: #121212;
            --c-bg-charcoal: #1C1C1E;
            --c-bg-elevated: #242427;
            --c-bg-card: #1E1E20;
            --c-bg-card-hover: #2A2A2E;
            --c-bg-input: #171719;
            
            /* Accent Colors */
            --c-accent-bronze: #C5A059;
            --c-accent-gold: #FFBF00;
            --c-accent-amber: #FFAB00;
            --c-accent-muted-gold: #D4AC0D;
            --c-accent-gold-soft: rgba(197, 160, 89, 0.18);
            --c-accent-gold-glow: rgba(255, 191, 0, 0.25);
            
            /* Semantic */
            --c-success: #2ECC71;
            --c-warning: #F39C12;
            --c-danger: #E74C3C;
            --c-info: #5B8DEF;
            
            /* Text Colors */
            --c-text-primary: #F5F5F7;
            --c-text-warm-white: #FFFDF9;
            --c-text-muted: #B8B8C0;
            --c-text-soft: #8A8A94;
            --c-text-gold: #E8D48B;
            --c-text-very-soft: #6B6B75;
            
            /* Typography */
            --font-primary: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            --font-display: 'Georgia', 'Times New Roman', serif;
            --font-mono: 'Cascadia Code', 'Fira Code', monospace;
            
            /* Spacing Scale */
            --space-xs: 4px;
            --space-sm: 8px;
            --space-md: 16px;
            --space-lg: 24px;
            --space-xl: 32px;
            --space-2xl: 48px;
            --space-3xl: 64px;
            --space-4xl: 80px;
            
            /* Border Radius */
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --radius-full: 50%;
            --radius-pill: 999px;
            
            /* Shadows */
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 6px 16px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 12px 30px rgba(0, 0, 0, 0.55);
            --shadow-gold-sm: 0 4px 16px rgba(255, 191, 0, 0.18);
            --shadow-gold-lg: 0 16px 40px rgba(255, 191, 0, 0.22);
            
            /* Transitions */
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.45s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        /* ==========================================================================
           RESET & BASE
           ========================================================================== */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        
        body {
            font-family: var(--font-primary);
            font-size: 16px;
            line-height: 1.6;
            color: var(--c-text-primary);
            background-color: var(--c-bg-primary);
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        a {
            color: var(--c-accent-bronze);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        
        a:hover {
            color: var(--c-accent-gold);
        }
        
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
        }
        
        button {
            cursor: pointer;
            border: none;
            outline: none;
        }
        
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--c-accent-gold);
            outline-offset: 2px;
        }
        
        h1, h2, h3, h4, h5, h6 {
            line-height: 1.25;
            margin: 0;
            font-weight: 700;
            color: var(--c-text-warm-white);
        }
        
        /* ==========================================================================
           CONTAINER & LAYOUT
           ========================================================================== */
        .container-wide {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 var(--space-lg);
        }
        
        .container-narrow {
            max-width: 920px;
            margin: 0 auto;
            padding: 0 var(--space-lg);
        }
        
        /* ==========================================================================
           HEADER / NAVIGATION
           ========================================================================== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(18, 18, 18, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(197, 160, 89, 0.15);
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }
        
        .site-header.scrolled {
            background: rgba(18, 18, 18, 0.98);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.6);
        }
        
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-xl);
            padding: var(--space-md) 0;
            min-height: 72px;
        }
        
        .brand {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            text-decoration: none;
            flex-shrink: 0;
        }
        
        .brand-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, #C5A059 0%, #8B6914 100%);
            border-radius: var(--radius-full);
            color: #121212;
            font-size: 20px;
            flex-shrink: 0;
            box-shadow: 0 4px 14px rgba(197, 160, 89, 0.35);
        }
        
        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        
        .brand-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--c-text-warm-white);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        
        .brand-sub {
            font-size: 11px;
            color: var(--c-text-muted);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        
        .nav-links {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            flex-shrink: 0;
        }
        
        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 10px 18px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--c-text-muted);
            text-decoration: none;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        
        .nav-links a:hover {
            color: var(--c-text-warm-white);
            background: rgba(197, 160, 89, 0.1);
        }
        
        .nav-links a.active {
            color: var(--c-text-warm-white);
            background: linear-gradient(135deg, rgba(197, 160, 89, 0.22) 0%, rgba(255, 191, 0, 0.12) 100%);
            border: 1px solid rgba(197, 160, 89, 0.3);
        }
        
        .nav-auth {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            flex-shrink: 0;
        }
        
        .btn-login {
            padding: 9px 20px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--c-text-warm-white);
            background: transparent;
            border: 1px solid rgba(197, 160, 89, 0.4);
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        
        .btn-login:hover {
            border-color: var(--c-accent-gold);
            background: rgba(197, 160, 89, 0.12);
        }
        
        .btn-signup {
            padding: 9px 20px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 600;
            color: #121212;
            background: linear-gradient(135deg, #FFBF00 0%, #C5A059 100%);
            transition: all var(--transition-base);
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(255, 191, 0, 0.3);
        }
        
        .btn-signup:hover {
            box-shadow: 0 8px 24px rgba(255, 191, 0, 0.45);
            transform: translateY(-1px);
        }
        
        .nav-toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: transparent;
            border: 1px solid rgba(197, 160, 89, 0.3);
            border-radius: var(--radius-sm);
            color: var(--c-text-warm-white);
            font-size: 20px;
            transition: all var(--transition-base);
        }
        
        .nav-toggle:hover {
            border-color: var(--c-accent-gold);
            background: rgba(197, 160, 89, 0.1);
        }
        
        /* Mobile Menu */
        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: var(--space-sm);
            padding: var(--space-md) var(--space-lg) var(--space-lg);
            background: rgba(18, 18, 18, 0.98);
            border-bottom: 1px solid rgba(197, 160, 89, 0.2);
        }
        
        .mobile-menu.open {
            display: flex;
        }
        
        .mobile-menu .nav-links {
            flex-direction: column;
            align-items: stretch;
            gap: var(--space-xs);
        }
        
        .mobile-menu .nav-links a {
            padding: 14px 18px;
            border-radius: var(--radius-md);
            width: 100%;
        }
        
        .mobile-menu .nav-auth {
            display: flex;
            flex-direction: row;
            gap: var(--space-sm);
            margin-top: var(--space-sm);
        }
        
        .mobile-menu .btn-login,
        .mobile-menu .btn-signup {
            flex: 1;
            text-align: center;
            justify-content: center;
        }
        
        /* ==========================================================================
           HERO SECTION
           ========================================================================== */
        .hero-section {
            position: relative;
            padding: 140px 0 var(--space-3xl);
            min-height: 780px;
            display: flex;
            align-items: center;
            background-image: 
                linear-gradient(180deg, rgba(18, 18, 18, 0.75) 0%, rgba(18, 18, 18, 0.92) 50%, rgba(18, 18, 18, 0.98) 100%),
                url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 70% 50%, rgba(197, 160, 89, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        
        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: var(--space-2xl);
            align-items: center;
            position: relative;
            z-index: 1;
        }
        
        .hero-content {
            text-align: left;
        }
        
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: var(--space-sm);
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            background: rgba(197, 160, 89, 0.12);
            border: 1px solid rgba(197, 160, 89, 0.25);
            color: var(--c-text-gold);
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: var(--space-lg);
        }
        
        .hero-title {
            font-size: 44px;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: var(--space-lg);
            letter-spacing: -0.5px;
        }
        
        .hero-title .highlight {
            background: linear-gradient(135deg, #FFBF00 0%, #C5A059 50%, #FFBF00 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .hero-description {
            font-size: 17px;
            color: var(--c-text-muted);
            line-height: 1.7;
            margin-bottom: var(--space-xl);
            max-width: 560px;
        }
        
        .hero-stats {
            display: flex;
            gap: var(--space-lg);
            flex-wrap: wrap;
            margin-bottom: var(--space-xl);
        }
        
        .stat-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        
        .stat-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--c-accent-gold);
        }
        
        .stat-label {
            font-size: 13px;
            color: var(--c-text-soft);
            letter-spacing: 0.3px;
        }
        
        .hero-cta-group {
            display: flex;
            gap: var(--space-md);
            flex-wrap: wrap;
        }
        
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: var(--space-sm);
            padding: 14px 28px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 600;
            color: #121212;
            background: linear-gradient(135deg, #FFBF00 0%, #C5A059 100%);
            text-decoration: none;
            transition: all var(--transition-base);
            box-shadow: 0 6px 20px rgba(255, 191, 0, 0.35);
            letter-spacing: 0.3px;
        }
        
        .btn-primary:hover {
            box-shadow: 0 10px 30px rgba(255, 191, 0, 0.5);
            transform: translateY(-2px);
            color: #121212;
        }
        
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: var(--space-sm);
            padding: 14px 28px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 500;
            color: var(--c-text-warm-white);
            background: transparent;
            border: 1px solid rgba(197, 160, 89, 0.4);
            text-decoration: none;
            transition: all var(--transition-base);
        }
        
        .btn-outline-light:hover {
            border-color: var(--c-accent-gold);
            background: rgba(197, 160, 89, 0.12);
            color: var(--c-text-warm-white);
        }
        
        /* Hero Right - Tier Cards */
        .hero-tiers {
            display: flex;
            flex-direction: column;
            gap: var(--space-md);
            max-width: 440px;
            margin-left: auto;
        }
        
        .tier-card {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-md);
            padding: var(--space-md) var(--space-lg);
            border-radius: var(--radius-lg);
            background: var(--c-bg-card);
            border: 1px solid rgba(197, 160, 89, 0.15);
            transition: all var(--transition-base);
            text-decoration: none;
            position: relative;
        }
        
        .tier-card:hover {
            border-color: rgba(197, 160, 89, 0.4);
            background: var(--c-bg-card-hover);
            transform: translateX(-6px);
        }
        
        .tier-card.recommended {
            border: 2px solid var(--c-accent-gold);
            background: linear-gradient(135deg, rgba(197, 160, 89, 0.15) 0%, rgba(255, 191, 0, 0.08) 100%);
            box-shadow: 0 8px 24px rgba(255, 191, 0, 0.15);
        }
        
        .tier-card-content {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        
        .tier-card-label {
            font-size: 11px;
            font-weight: 600;
            color: var(--c-accent-bronze);
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        
        .tier-card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--c-text-warm-white);
        }
        
        .tier-card-desc {
            font-size: 13px;
            color: var(--c-text-soft);
        }
        
        .tier-card-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-full);
            background: rgba(197, 160, 89, 0.15);
            color: var(--c-accent-bronze);
            font-size: 16px;
            flex-shrink: 0;
        }
        
        .tier-card.recommended .tier-card-icon {
            background: linear-gradient(135deg, #FFBF00 0%, #C5A059 100%);
            color: #121212;
        }
        
        .tier-badge-recommended {
            position: absolute;
            top: -10px;
            right: var(--space-lg);
            padding: 3px 12px;
            border-radius: var(--radius-pill);
            background: linear-gradient(135deg, #FFBF00 0%, #C5A059 100%);
            color: #121212;
            font-size: 10px;
            font-weight: 700;
            letter-spacing: 0.8px;
            text-transform: uppercase;
        }
        
        /* ==========================================================================
           SECTION BASICS
           ========================================================================== */
        .content-section {
            padding: var(--space-3xl) 0;
        }
        
        .content-section.alt-bg {
            background: var(--c-bg-charcoal);
        }
        
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: var(--space-sm);
            font-size: 12px;
            font-weight: 600;
            color: var(--c-accent-bronze);
            letter-spacing: 1.5px;
            text-transform: uppercase;
            margin-bottom: var(--space-md);
        }
        
        .section-title {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: var(--space-md);
            letter-spacing: -0.3px;
            line-height: 1.3;
        }
        
        .section-description {
            font-size: 16px;
            color: var(--c-text-muted);
            line-height: 1.7;
            margin-bottom: var(--space-xl);
            max-width: 680px;
        }
        
        /* ==========================================================================
           STRATEGY MODULES (Feature Grouping)
           ========================================================================== */
        .modules-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-lg);
            margin-top: var(--space-lg);
        }
        
        .module-card {
            display: flex;
            flex-direction: column;
            gap: var(--space-md);
            padding: var(--space-xl);
            border-radius: var(--radius-lg);
            background: var(--c-bg-card);
            border: 1px solid rgba(197, 160, 89, 0.12);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        
        .module-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, transparent 0%, var(--c-accent-bronze) 50%, transparent 100%);
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        
        .module-card:hover {
            border-color: rgba(197, 160, 89, 0.35);
            background: var(--c-bg-card-hover);
            transform: translateY(-4px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.45);
        }
        
        .module-card:hover::before {
            opacity: 1;
        }
        
        .module-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: rgba(197, 160, 89, 0.12);
            color: var(--c-accent-bronze);
            font-size: 22px;
        }
        
        .module-card h3 {
            font-size: 19px;
            font-weight: 600;
            margin: 0;
        }
        
        .module-card p {
            font-size: 14px;
            color: var(--c-text-muted);
            line-height: 1.65;
            margin: 0;
        }
        
        .module-tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 11px;
            font-weight: 600;
            background: rgba(197, 160, 89, 0.1);
            color: var(--c-text-gold);
            letter-spacing: 0.5px;
        }
        
        /* ==========================================================================
           USE CASES / SCENARIOS
           ========================================================================== */
        .scenarios-list {
            display: flex;
            flex-direction: column;
            gap: var(--space-md);
            margin-top: var(--space-lg);
        }
        
        .scenario-item {
            display: flex;
            align-items: flex-start;
            gap: var(--space-lg);
            padding: var(--space-lg) var(--space-xl);
            border-radius: var(--radius-lg);
            background: transparent;
            border: 1px solid rgba(197, 160, 89, 0.1);
            transition: all var(--transition-base);
        }
        
        .scenario-item:hover {
            background: var(--c-bg-card);
            border-color: rgba(197, 160, 89, 0.3);
        }
        
        .scenario-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: var(--radius-full);
            background: rgba(197, 160, 89, 0.1);
            color: var(--c-accent-bronze);
            font-size: 18px;
            flex-shrink: 0;
        }
        
        .scenario-content h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: var(--space-xs);
        }
        
        .scenario-content p {
            font-size: 14px;
            color: var(--c-text-muted);
            line-height: 1.65;
            margin: 0;
        }
        
        /* ==========================================================================
           RESULTS / SUCCESS METRICS
           ========================================================================== */
        .results-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: var(--space-2xl);
            align-items: center;
        }
        
        .results-image-wrapper {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        
        .results-image-wrapper img {
            width: 100%;
            height: 400px;
            object-fit: cover;
            border-radius: var(--radius-xl);
        }
        
        .results-metrics {
            display: flex;
            flex-direction: column;
            gap: var(--space-lg);
        }
        
        .metric-row {
            display: flex;
            align-items: center;
            gap: var(--space-md);
            padding: var(--space-md) var(--space-lg);
            border-radius: var(--radius-md);
            background: var(--c-bg-card);
            border: 1px solid rgba(197, 160, 89, 0.12);
        }
        
        .metric-value {
            font-size: 30px;
            font-weight: 700;
            color: var(--c-accent-gold);
            min-width: 80px;
            text-align: center;
        }
        
        .metric-info {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        
        .metric-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--c-text-warm-white);
        }
        
        .metric-desc {
            font-size: 13px;
            color: var(--c-text-soft);
        }
        
        /* ==========================================================================
           ACCESS TIERS (Pricing)
           ========================================================================== */
        .tiers-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-lg);
            margin-top: var(--space-lg);
            align-items: stretch;
        }
        
        .pricing-tier {
            display: flex;
            flex-direction: column;
            padding: var(--space-xl);
            border-radius: var(--radius-lg);
            background: var(--c-bg-card);
            border: 1px solid rgba(197, 160, 89, 0.15);
            transition: all var(--transition-base);
            position: relative;
        }
        
        .pricing-tier.featured {
            border: 2px solid var(--c-accent-gold);
            background: linear-gradient(180deg, rgba(197, 160, 89, 0.1) 0%, var(--c-bg-card) 50%);
            box-shadow: var(--shadow-gold-lg);
            transform: scale(1.03);
        }
        
        .pricing-tier:hover {
            border-color: rgba(197, 160, 89, 0.4);
            transform: translateY(-4px);
            box-shadow: 0 16px 32px rgba(0, 0, 0, 0.5);
        }
        
        .pricing-tier.featured:hover {
            transform: scale(1.04) translateY(-4px);
        }
        
        .pricing-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            background: linear-gradient(135deg, #FFBF00 0%, #C5A059 100%);
            color: #121212;
            font-size: 11px;
            font-weight: 700;
            letter-spacing: 0.8px;
            text-transform: uppercase;
        }
        
        .pricing-tier-header {
            margin-bottom: var(--space-lg);
        }
        
        .pricing-tier-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--c-accent-bronze);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: var(--space-xs);
        }
        
        .pricing-tier-price {
            font-size: 36px;
            font-weight: 700;
            color: var(--c-text-warm-white);
            line-height: 1.2;
        }
        
        .pricing-tier-price span {
            font-size: 16px;
            font-weight: 400;
            color: var(--c-text-soft);
        }
        
        .pricing-tier-features {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
            margin: 0 0 var(--space-xl);
            flex: 1;
        }
        
        .pricing-tier-features li {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            font-size: 14px;
            color: var(--c-text-muted);
        }
        
        .pricing-tier-features li i {
            color: var(--c-accent-bronze);
            font-size: 13px;
            flex-shrink: 0;
        }
        
        .btn-tier {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: var(--space-sm);
            padding: 13px 24px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 600;
            color: var(--c-text-warm-white);
            background: transparent;
            border: 1px solid rgba(197, 160, 89, 0.4);
            text-decoration: none;
            transition: all var(--transition-base);
            text-align: center;
        }
        
        .btn-tier:hover {
            border-color: var(--c-accent-gold);
            background: rgba(197, 160, 89, 0.1);
            color: var(--c-text-warm-white);
        }
        
        .btn-tier.featured-btn {
            background: linear-gradient(135deg, #FFBF00 0%, #C5A059 100%);
            color: #121212;
            border: none;
            box-shadow: 0 6px 20px rgba(255, 191, 0, 0.3);
        }
        
        .btn-tier.featured-btn:hover {
            box-shadow: 0 10px 28px rgba(255, 191, 0, 0.45);
            transform: translateY(-1px);
            color: #121212;
        }
        
        /* ==========================================================================
           FAQ
           ========================================================================== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
            max-width: 860px;
        }
        
        .faq-item {
            border-radius: var(--radius-md);
            background: var(--c-bg-card);
            border: 1px solid rgba(197, 160, 89, 0.12);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        
        .faq-item:hover {
            border-color: rgba(197, 160, 89, 0.3);
        }
        
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-md);
            padding: var(--space-lg) var(--space-xl);
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--c-text-warm-white);
            transition: all var(--transition-base);
            user-select: none;
        }
        
        .faq-question:hover {
            color: var(--c-accent-gold);
        }
        
        .faq-question i {
            font-size: 14px;
            color: var(--c-accent-bronze);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }
        
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 var(--space-xl);
        }
        
        .faq-item.active .faq-answer {
            max-height: 400px;
            padding-bottom: var(--space-lg);
        }
        
        .faq-answer p {
            font-size: 14px;
            color: var(--c-text-muted);
            line-height: 1.7;
            margin: 0;
        }
        
        /* ==========================================================================
           CTA SECTION
           ========================================================================== */
        .cta-section {
            position: relative;
            padding: var(--space-3xl) 0;
            background-image: 
                linear-gradient(180deg, rgba(18, 18, 18, 0.85) 0%, rgba(18, 18, 18, 0.95) 100%),
                url('/assets/images/backpic/back-3.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            border-radius: var(--radius-xl);
            overflow: hidden;
            margin-bottom: var(--space-3xl);
        }
        
        .cta-inner {
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
            padding: var(--space-2xl) var(--space-lg);
        }
        
        .cta-title {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: var(--space-md);
            line-height: 1.3;
        }
        
        .cta-description {
            font-size: 16px;
            color: var(--c-text-muted);
            line-height: 1.7;
            margin-bottom: var(--space-xl);
        }
        
        .cta-btn-group {
            display: flex;
            gap: var(--space-md);
            justify-content: center;
            flex-wrap: wrap;
        }
        
        /* ==========================================================================
           FOOTER
           ========================================================================== */
        .site-footer {
            background: var(--c-bg-primary);
            border-top: 1px solid rgba(197, 160, 89, 0.15);
            padding: var(--space-3xl) 0 var(--space-lg);
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.9fr 0.9fr;
            gap: var(--space-2xl);
            margin-bottom: var(--space-2xl);
        }
        
        .footer-brand .brand {
            margin-bottom: var(--space-md);
        }
        
        .footer-about p {
            font-size: 14px;
            color: var(--c-text-soft);
            line-height: 1.7;
            margin: 0;
        }
        
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--c-text-warm-white);
            margin-bottom: var(--space-md);
            letter-spacing: 0.5px;
        }
        
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
            margin: 0;
        }
        
        .footer-col ul li a {
            display: inline-flex;
            align-items: center;
            gap: var(--space-sm);
            font-size: 14px;
            color: var(--c-text-muted);
            text-decoration: none;
            transition: all var(--transition-base);
        }
        
        .footer-col ul li a i {
            font-size: 10px;
            color: var(--c-accent-bronze);
        }
        
        .footer-col ul li a:hover {
            color: var(--c-accent-gold);
        }
        
        .footer-bottom {
            padding-top: var(--space-lg);
            border-top: 1px solid rgba(197, 160, 89, 0.1);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: var(--space-md);
        }
        
        .copyright {
            font-size: 13px;
            color: var(--c-text-very-soft);
            letter-spacing: 0.3px;
        }
        
        .copyright strong {
            color: var(--c-text-muted);
        }
        
        .footer-badges {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            flex-wrap: wrap;
        }
        
        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: var(--space-xs);
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            background: rgba(197, 160, 89, 0.08);
            border: 1px solid rgba(197, 160, 89, 0.2);
            font-size: 11px;
            color: var(--c-text-soft);
            letter-spacing: 0.5px;
        }
        
        .footer-badge i {
            color: var(--c-success);
            font-size: 10px;
        }
        
        /* ==========================================================================
           FAB (Floating Action Button)
           ========================================================================== */
        .fab-support {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(18, 18, 18, 0.7);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 2px solid transparent;
            background-image: 
                linear-gradient(rgba(18, 18, 18, 0.7), rgba(18, 18, 18, 0.7)),
                linear-gradient(135deg, #CCFF00 0%, #00F0FF 100%);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            color: var(--c-accent-gold);
            font-size: 20px;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.35);
            opacity: 0.6;
            text-decoration: none;
        }
        
        .fab-support:hover {
            opacity: 1;
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.6);
            transform: scale(1.05);
            color: var(--c-accent-gold);
        }
        
        .fab-notification {
            position: absolute;
            top: -6px;
            right: -6px;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: #E74C3C;
            border: 2px solid var(--c-bg-primary);
            animation: fab-pulse 1.5s ease infinite;
        }
        
        @keyframes fab-pulse {
            0%, 100% { transform: scale(1); opacity: 1; }
            50% { transform: scale(1.25); opacity: 0.7; }
        }
        
        /* ==========================================================================
           RESPONSIVE BREAKPOINTS
           ========================================================================== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: var(--space-xl);
            }
            
            .hero-tiers {
                max-width: 100%;
                margin-left: 0;
            }
            
            .hero-title {
                font-size: 36px;
            }
            
            .modules-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .tiers-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: var(--space-md);
            }
            
            .results-grid {
                grid-template-columns: 1fr;
                gap: var(--space-xl);
            }
            
            .results-image-wrapper img {
                height: 300px;
            }
            
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-xl);
            }
            
            .footer-brand {
                grid-column: span 2;
            }
        }
        
        @media (max-width: 768px) {
            .header-inner {
                gap: var(--space-md);
                min-height: 64px;
            }
            
            .nav-links {
                display: none;
            }
            
            .nav-auth .btn-login,
            .nav-auth .btn-signup {
                padding: 8px 16px;
                font-size: 13px;
            }
            
            .nav-toggle {
                display: flex;
            }
            
            .hero-section {
                padding: 110px 0 var(--space-2xl);
                min-height: auto;
            }
            
            .hero-title {
                font-size: 30px;
            }
            
            .hero-description {
                font-size: 15px;
            }
            
            .hero-cta-group {
                flex-direction: column;
                width: 100%;
            }
            
            .btn-primary,
            .btn-outline-light {
                width: 100%;
                justify-content: center;
            }
            
            .section-title {
                font-size: 26px;
            }
            
            .modules-grid {
                grid-template-columns: 1fr;
                gap: var(--space-md);
            }
            
            .tiers-grid {
                grid-template-columns: 1fr;
                gap: var(--space-lg);
            }
            
            .pricing-tier.featured {
                transform: scale(1);
            }
            
            .pricing-tier.featured:hover {
                transform: translateY(-4px);
            }
            
            .results-grid {
                gap: var(--space-lg);
            }
            
            .results-image-wrapper img {
                height: 220px;
            }
            
            .metric-value {
                font-size: 24px;
                min-width: 60px;
            }
            
            .cta-title {
                font-size: 26px;
            }
            
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--space-lg);
            }
            
            .footer-brand {
                grid-column: span 1;
            }
            
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            
            .scenario-item {
                flex-direction: column;
                gap: var(--space-md);
                padding: var(--space-md);
            }
            
            .scenario-icon {
                width: 40px;
                height: 40px;
                font-size: 15px;
            }
            
            .fab-support {
                left: 12px;
                bottom: 80px;
                width: 50px;
                height: 50px;
                font-size: 18px;
                border-radius: 14px;
            }
        }
        
        @media (max-width: 520px) {
            .container-wide,
            .container-narrow {
                padding: 0 var(--space-md);
            }
            
            .brand-name {
                font-size: 13px;
            }
            
            .brand-sub {
                font-size: 10px;
            }
            
            .brand-icon {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }
            
            .hero-title {
                font-size: 25px;
            }
            
            .hero-stats {
                gap: var(--space-md);
            }
            
            .stat-number {
                font-size: 22px;
            }
            
            .stat-label {
                font-size: 11px;
            }
            
            .section-title {
                font-size: 22px;
            }
            
            .section-description {
                font-size: 14px;
            }
            
            .module-card h3 {
                font-size: 17px;
            }
            
            .module-card p {
                font-size: 13px;
            }
            
            .pricing-tier-price {
                font-size: 30px;
            }
            
            .faq-question {
                font-size: 14px;
                padding: var(--space-md) var(--space-lg);
            }
            
            .faq-answer {
                padding: 0 var(--space-lg);
            }
            
            .faq-answer p {
                font-size: 13px;
            }
            
            .cta-title {
                font-size: 22px;
            }
            
            .cta-description {
                font-size: 14px;
            }
            
            .tier-card-title {
                font-size: 15px;
            }
            
            .tier-card-desc {
                font-size: 12px;
            }
            
            .btn-login,
            .btn-signup {
                padding: 7px 12px;
                font-size: 12px;
            }
        }
        
        /* ==========================================================================
           UTILITIES
           ========================================================================== */
        .text-gold {
            color: var(--c-accent-gold);
        }
        
        .text-bronze {
            color: var(--c-accent-bronze);
        }
        
        .margin-top-lg {
            margin-top: var(--space-lg);
        }
        
        .margin-top-xl {
            margin-top: var(--space-xl);
        }
        
        .margin-bottom-lg {
            margin-bottom: var(--space-lg);
        }
        
        .margin-bottom-xl {
            margin-bottom: var(--space-xl);
        }
        
        /* Scroll to top button */
        .scroll-top {
            position: fixed;
            right: 16px;
            bottom: 96px;
            z-index: 50;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-full);
            background: rgba(197, 160, 89, 0.15);
            border: 1px solid rgba(197, 160, 89, 0.3);
            color: var(--c-accent-bronze);
            font-size: 16px;
            cursor: pointer;
            transition: all var(--transition-base);
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
        }
        
        .scroll-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        
        .scroll-top:hover {
            background: rgba(197, 160, 89, 0.25);
            border-color: var(--c-accent-gold);
        }

/* roulang page: category2 */
/* ===== Design Tokens ===== */
        :root {
            --bg-primary: #121212;
            --bg-secondary: #1C1C1E;
            --bg-tertiary: #2A2A2D;
            --bg-poker: #0A2E1C;
            --bg-poker-dark: #062315;
            --accent-gold: #C5A059;
            --accent-amber: #FFBF00;
            --accent-bronze: #B08A44;
            --text-primary: #F5F5F7;
            --text-secondary: #D1D1D6;
            --text-muted: #9E9EA3;
            --text-gold: #D4AC0D;
            --border-subtle: rgba(255,255,255,0.08);
            --border-gold: rgba(197,160,89,0.35);
            --border-gold-strong: rgba(197,160,89,0.6);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.4);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.5);
            --shadow-gold: 0 4px 20px rgba(197,160,89,0.25);
            --shadow-gold-hover: 0 8px 32px rgba(255,191,0,0.35);
            --spacing-xs: 4px;
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 32px;
            --spacing-xl: 64px;
            --spacing-2xl: 96px;
            --font-body: 'Be Vietnam Pro', 'Arial', 'Helvetica', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;
        }

        /* ===== Base Reset ===== */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

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

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

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

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

        button, .btn {
            font-family: var(--font-body);
            cursor: pointer;
            border: none;
            outline: none;
            transition: all var(--transition-base);
        }

        button:focus-visible, a:focus-visible, .btn:focus-visible {
            outline: 2px solid var(--accent-amber);
            outline-offset: 2px;
        }

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

        h1 {
            font-size: clamp(2.2rem, 5vw, 3.8rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: var(--spacing-md);
        }

        h2 {
            font-size: clamp(1.7rem, 3.5vw, 2.5rem);
            font-weight: 700;
            letter-spacing: -0.01em;
            margin-bottom: var(--spacing-lg);
        }

        h3 {
            font-size: clamp(1.2rem, 2vw, 1.5rem);
            font-weight: 650;
            margin-bottom: var(--spacing-sm);
        }

        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: var(--spacing-sm);
        }

        p {
            margin-bottom: var(--spacing-md);
            color: var(--text-secondary);
        }

        ul, ol {
            margin-bottom: var(--spacing-md);
            padding-left: 20px;
        }

        li {
            color: var(--text-secondary);
            margin-bottom: var(--spacing-xs);
        }

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

        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }

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

        .section-dark {
            background-color: var(--bg-secondary);
        }

        .section-gold-gradient {
            background: linear-gradient(135deg, #1C1C1E 0%, #2A2A2D 50%, #1C1C1E 100%);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(18, 18, 18, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 12px 0;
            transition: all var(--transition-base);
        }

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

        .brand {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            flex-shrink: 0;
        }

        .brand-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, #FFBF00, #C5A059);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #121212;
            font-size: 1.2rem;
            box-shadow: var(--shadow-gold);
            flex-shrink: 0;
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.25;
        }

        .brand-name {
            color: var(--text-primary);
            font-weight: 700;
            font-size: 1.05rem;
            letter-spacing: -0.01em;
        }

        .brand-sub {
            color: var(--text-gold);
            font-weight: 500;
            font-size: 0.75rem;
            letter-spacing: 0.04em;
        }

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

        .nav-links a {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 16px;
            border-radius: 50px;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--accent-amber);
            background: rgba(197,160,89,0.08);
        }

        .nav-links a.active {
            color: var(--text-primary);
            background: linear-gradient(135deg, rgba(197,160,89,0.15), rgba(255,191,0,0.1));
            border: 1px solid var(--border-gold);
            font-weight: 600;
        }

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

        .btn-login {
            color: var(--text-secondary);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 8px 16px;
            border-radius: 50px;
            text-decoration: none;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

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

        .btn-signup {
            color: #121212;
            background: linear-gradient(135deg, #FFBF00, #C5A059);
            font-weight: 700;
            font-size: 0.9rem;
            padding: 10px 22px;
            border-radius: 50px;
            text-decoration: none;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold-hover);
            color: #121212;
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-subtle);
            color: var(--text-primary);
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            font-size: 1.2rem;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-base);
        }

        .mobile-toggle:hover {
            border-color: var(--border-gold);
            color: var(--accent-amber);
        }

        /* ===== Hero Section ===== */
        .hero-section {
            background: radial-gradient(ellipse at 30% 50%, #0A2E1C 0%, #062315 40%, #121212 100%);
            padding: var(--spacing-xl) 0 var(--spacing-lg);
            border-bottom: 1px solid var(--border-subtle);
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 70% 30%, rgba(197,160,89,0.06) 0%, transparent 60%);
            pointer-events: none;
        }

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

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(197,160,89,0.12);
            border: 1px solid var(--border-gold);
            color: var(--accent-amber);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 6px 16px;
            border-radius: 50px;
            margin-bottom: var(--spacing-md);
        }

        .hero-tag i {
            font-size: 0.75rem;
        }

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

        .hero-cta-group {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            flex-wrap: wrap;
            margin-bottom: var(--spacing-lg);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, #FFBF00, #C5A059);
            color: #121212;
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 28px;
            border-radius: 50px;
            text-decoration: none;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-gold-hover);
            color: #121212;
        }

        .btn-primary:active {
            transform: translateY(-1px) scale(0.98);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1rem;
            padding: 13px 26px;
            border-radius: 50px;
            text-decoration: none;
            border: 1px solid var(--border-gold);
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .btn-outline:hover {
            background: rgba(197,160,89,0.08);
            border-color: var(--border-gold-strong);
            color: var(--accent-amber);
        }

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

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

        .hero-stat-value {
            font-weight: 800;
            font-size: 1.4rem;
            color: var(--accent-amber);
        }

        .hero-stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* Hero Right Panel */
        .hero-panel {
            background: rgba(18,18,18,0.6);
            backdrop-filter: blur(8px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: var(--spacing-lg);
            display: flex;
            flex-direction: column;
            gap: var(--spacing-lg);
            box-shadow: var(--shadow-lg);
        }

        .hero-progress-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: var(--spacing-lg);
        }

        .progress-ring-container {
            position: relative;
            width: 160px;
            height: 160px;
            flex-shrink: 0;
        }

        .progress-ring-container svg {
            transform: rotate(-90deg);
            width: 100%;
            height: 100%;
        }

        .progress-ring-bg {
            fill: none;
            stroke: rgba(255,255,255,0.08);
            stroke-width: 10;
        }

        .progress-ring-fg {
            fill: none;
            stroke: url(#goldGradient);
            stroke-width: 10;
            stroke-linecap: round;
            stroke-dasharray: 314.16;
            stroke-dashoffset: 68.87;
            transition: stroke-dashoffset 1.2s ease;
        }

        .progress-ring-text {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            text-align: center;
            z-index: 2;
        }

        .progress-ring-value {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--accent-amber);
            display: block;
            line-height: 1.1;
        }

        .progress-ring-label {
            font-size: 0.75rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .hero-progress-info {
            flex: 1;
        }

        .hero-progress-info h3 {
            font-size: 1.1rem;
            color: var(--text-primary);
            margin-bottom: var(--spacing-xs);
        }

        .hero-progress-info p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        .tier-preview-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-sm);
        }

        .tier-chip {
            background: rgba(255,255,255,0.04);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: var(--spacing-sm) var(--spacing-md);
            text-align: center;
            transition: all var(--transition-base);
        }

        .tier-chip:hover {
            border-color: var(--border-gold);
            background: rgba(197,160,89,0.06);
        }

        .tier-chip-icon {
            font-size: 1.3rem;
            color: var(--accent-amber);
            margin-bottom: var(--spacing-xs);
            display: block;
        }

        .tier-chip-name {
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--text-primary);
            margin-bottom: 2px;
        }

        .tier-chip-desc {
            font-size: 0.72rem;
            color: var(--text-muted);
        }

        /* ===== Section Headers (left-aligned) ===== */
        .section-header-left {
            margin-bottom: var(--spacing-lg);
            max-width: 700px;
        }

        .section-header-left h2 {
            margin-bottom: var(--spacing-sm);
        }

        .section-header-left p {
            color: var(--text-muted);
            font-size: 1.05rem;
            margin-bottom: 0;
        }

        .section-tag {
            display: inline-block;
            color: var(--accent-amber);
            font-weight: 600;
            font-size: 0.8rem;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: var(--spacing-xs);
        }

        /* ===== Divider ===== */
        .divider-gold {
            height: 1px;
            background: linear-gradient(90deg, var(--border-gold-strong), transparent);
            margin: var(--spacing-md) 0 var(--spacing-lg);
            border: none;
        }

        /* ===== Value Proposition Cards ===== */
        .value-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }

        .value-card {
            background: rgba(255,255,255,0.03);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            transition: all var(--transition-base);
            position: relative;
        }

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

        .value-card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, rgba(197,160,89,0.15), rgba(255,191,0,0.08));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-amber);
            font-size: 1.3rem;
            margin-bottom: var(--spacing-md);
        }

        .value-card h3 {
            font-size: 1.15rem;
            margin-bottom: var(--spacing-xs);
        }

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

        .value-data-badge {
            display: inline-block;
            background: rgba(197,160,89,0.1);
            border: 1px solid var(--border-gold);
            color: var(--accent-amber);
            font-weight: 700;
            font-size: 0.8rem;
            padding: 4px 12px;
            border-radius: 50px;
            margin-bottom: var(--spacing-sm);
        }

        /* ===== Feature Groups (Mindset Pillars) ===== */
        .pillar-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-lg);
        }

        .pillar-card {
            display: flex;
            gap: var(--spacing-md);
            background: rgba(255,255,255,0.02);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            transition: all var(--transition-base);
        }

        .pillar-card:hover {
            border-color: var(--border-gold);
            background: rgba(197,160,89,0.04);
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        .pillar-icon {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, #FFBF00, #C5A059);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #121212;
            font-size: 1.4rem;
        }

        .pillar-content h3 {
            margin-bottom: var(--spacing-xs);
            font-size: 1.1rem;
        }

        .pillar-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        .pillar-content .pillar-example {
            color: var(--text-secondary);
            font-size: 0.85rem;
            margin-top: var(--spacing-xs);
        }

        /* ===== Use Cases ===== */
        .usecase-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
            margin-bottom: var(--spacing-xl);
        }

        .usecase-block:last-child {
            margin-bottom: 0;
        }

        .usecase-block.reverse {
            direction: rtl;
        }

        .usecase-block.reverse > * {
            direction: ltr;
        }

        .usecase-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-md);
        }

        .usecase-image img {
            border-radius: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 280px;
        }

        .usecase-content h3 {
            font-size: 1.4rem;
            margin-bottom: var(--spacing-sm);
        }

        .usecase-content p {
            color: var(--text-muted);
            margin-bottom: var(--spacing-md);
        }

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

        .usecase-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text-secondary);
            margin-bottom: var(--spacing-sm);
            font-size: 0.95rem;
        }

        .usecase-list li i {
            color: var(--accent-amber);
            font-size: 0.85rem;
            margin-top: 5px;
        }

        /* ===== Success Stories ===== */
        .success-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-lg);
        }

        .success-card {
            background: rgba(255,255,255,0.03);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            transition: all var(--transition-base);
            position: relative;
        }

        .success-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-md);
        }

        .success-quote {
            font-style: italic;
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.65;
            margin-bottom: var(--spacing-md);
            position: relative;
            padding-left: 20px;
        }

        .success-quote::before {
            content: '\201C';
            font-size: 3rem;
            color: var(--border-gold-strong);
            position: absolute;
            left: -8px;
            top: -8px;
            font-style: normal;
            line-height: 1;
        }

        .success-meta {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .success-meta-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, #C5A059, #FFBF00);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #121212;
            font-weight: 700;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .success-meta-name {
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.95rem;
        }

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

        .success-stat-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(197,160,89,0.08);
            border: 1px solid var(--border-gold);
            color: var(--accent-amber);
            font-weight: 700;
            font-size: 0.85rem;
            padding: 6px 14px;
            border-radius: 50px;
            position: absolute;
            top: 20px;
            right: 20px;
        }

        /* ===== Tier Levels (Lộ Trình) ===== */
        .tier-levels-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }

        .tier-level-card {
            background: rgba(255,255,255,0.03);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            position: relative;
        }

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

        .tier-level-card.featured {
            border: 1px solid var(--border-gold-strong);
            background: rgba(197,160,89,0.04);
        }

        .tier-level-badge {
            display: inline-block;
            background: linear-gradient(135deg, #FFBF00, #C5A059);
            color: #121212;
            font-weight: 700;
            font-size: 0.75rem;
            padding: 4px 12px;
            border-radius: 50px;
            align-self: flex-start;
            margin-bottom: var(--spacing-sm);
        }

        .tier-level-card h3 {
            font-size: 1.25rem;
            margin-bottom: var(--spacing-xs);
        }

        .tier-level-sub {
            color: var(--text-gold);
            font-weight: 600;
            font-size: 0.85rem;
            margin-bottom: var(--spacing-md);
        }

        .tier-level-features {
            list-style: none;
            padding: 0;
            margin: 0 0 var(--spacing-md) 0;
            flex: 1;
        }

        .tier-level-features li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: var(--spacing-sm);
        }

        .tier-level-features li i {
            color: var(--accent-amber);
            font-size: 0.8rem;
            margin-top: 4px;
        }

        .tier-level-card .btn-outline {
            align-self: stretch;
            justify-content: center;
        }

        .tier-level-card .btn-primary {
            align-self: stretch;
            justify-content: center;
        }

        /* ===== FAQ ===== */
        .faq-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: rgba(255,255,255,0.03);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            margin-bottom: var(--spacing-sm);
            overflow: hidden;
            transition: all var(--transition-base);
        }

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

        .faq-item.active {
            border-color: var(--border-gold-strong);
            background: rgba(197,160,89,0.04);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            background: transparent;
            padding: var(--spacing-md) var(--spacing-lg);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1rem;
            text-align: left;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
        }

        .faq-question span {
            flex: 1;
        }

        .faq-question i {
            color: var(--accent-amber);
            font-size: 0.9rem;
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow);
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
        }

        .faq-answer-inner {
            padding: 0 var(--spacing-lg) var(--spacing-md);
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.65;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(135deg, #0A2E1C 0%, #1C1C1E 60%, #121212 100%);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: var(--spacing-xl);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(ellipse at center, rgba(197,160,89,0.08) 0%, transparent 60%);
            pointer-events: none;
        }

        .cta-section h2 {
            position: relative;
            z-index: 1;
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            margin-bottom: var(--spacing-sm);
        }

        .cta-section p {
            position: relative;
            z-index: 1;
            color: var(--text-secondary);
            max-width: 580px;
            margin: 0 auto var(--spacing-lg);
            font-size: 1.05rem;
        }

        .cta-section .btn-primary {
            position: relative;
            z-index: 1;
            font-size: 1.05rem;
            padding: 16px 36px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid var(--border-subtle);
            padding: var(--spacing-xl) 0 var(--spacing-md);
            margin-top: var(--spacing-xl);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: var(--spacing-xl);
            margin-bottom: var(--spacing-lg);
        }

        .footer-brand .brand {
            margin-bottom: var(--spacing-md);
        }

        .footer-about p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 0;
        }

        .footer-col h4 {
            color: var(--text-primary);
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: var(--spacing-sm);
        }

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

        .footer-col ul li {
            margin-bottom: var(--spacing-xs);
        }

        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            text-decoration: none;
            transition: color var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-col ul li a i {
            font-size: 0.7rem;
            color: var(--text-gold);
        }

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

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

        .copyright {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

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

        /* ===== FAB (Cyber & Neon Style) ===== */
        .fab-neon {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50px;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(18,18,18,0.7), rgba(18,18,18,0.7)), linear-gradient(135deg, #C5A059, #FFBF00);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            box-shadow: 0 0 20px rgba(197,160,89,0.4);
            color: var(--accent-amber);
            font-size: 1.4rem;
            text-decoration: none;
            opacity: 0.6;
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .fab-neon:hover {
            opacity: 1;
            box-shadow: 0 0 35px rgba(255,191,0,0.6), 0 0 60px rgba(197,160,89,0.3);
            transform: scale(1.05);
            color: #121212;
            background-image: linear-gradient(135deg, #FFBF00, #C5A059), linear-gradient(135deg, #FFBF00, #C5A059);
            background-origin: border-box;
            background-clip: padding-box, border-box;
        }

        .fab-neon:active {
            transform: scale(0.95);
            box-shadow: 0 0 15px rgba(197,160,89,0.5);
        }

        .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #FF3B30;
            border: 2px solid #121212;
            animation: fab-blink 1.5s ease-in-out infinite;
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .container-wide, .container-narrow {
                padding: 0 var(--spacing-md);
            }
            
            .hero-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            
            .hero-subtitle {
                max-width: 100%;
            }
            
            .value-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            
            .footer-brand {
                grid-column: span 2;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: nowrap;
                gap: var(--spacing-sm);
            }

            .brand-name {
                font-size: 0.9rem;
            }
            
            .brand-sub {
                font-size: 0.68rem;
            }
            
            .brand-icon {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(18,18,18,0.98);
                backdrop-filter: blur(16px);
                border-bottom: 1px solid var(--border-subtle);
                padding: var(--spacing-md);
                flex-direction: column;
                align-items: stretch;
                gap: var(--spacing-xs);
                z-index: 99;
            }

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

            .nav-links a {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                display: block;
                text-align: left;
            }

            .mobile-toggle {
                display: flex;
            }

            .header-auth {
                gap: 6px;
            }

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

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

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

            .usecase-block {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }

            .usecase-block.reverse {
                direction: ltr;
            }

            .usecase-image img {
                min-height: 200px;
            }

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

            .tier-levels-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }

            .tier-preview-row {
                grid-template-columns: 1fr;
            }

            .hero-progress-wrap {
                flex-direction: column;
                gap: var(--spacing-md);
            }

            .progress-ring-container {
                width: 140px;
                height: 140px;
            }

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

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

        @media (max-width: 520px) {
            .container-wide, .container-narrow {
                padding: 0 var(--spacing-sm);
            }

            h1 {
                font-size: 1.9rem;
            }

            h2 {
                font-size: 1.5rem;
            }

            .hero-cta-group {
                flex-direction: column;
                align-items: stretch;
            }

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

            .hero-stats {
                gap: var(--spacing-md);
            }

            .hero-stat-value {
                font-size: 1.1rem;
            }

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

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

            .footer-brand {
                grid-column: span 1;
            }

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

            .cta-section {
                padding: var(--spacing-lg) var(--spacing-md);
            }

            .fab-neon {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                left: 0.75rem;
                bottom: 5.5rem;
            }

            .header-auth {
                gap: 4px;
            }

            .btn-login {
                padding: 5px 8px;
                font-size: 0.72rem;
            }

            .btn-signup {
                padding: 6px 12px;
                font-size: 0.72rem;
            }
        }