/* roulang page: index */
:root {
            --bg-primary: #08090F;
            --bg-secondary: #0D111E;
            --bg-tertiary: #111827;
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --accent-blue-hover: #1a6bff;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #94A3B8;
            --glass-bg: rgba(255, 255, 255, 0.03);
            --glass-border: rgba(255, 255, 255, 0.08);
            --glass-border-strong: rgba(0, 240, 255, 0.25);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-glow: 0 0 25px rgba(0, 82, 255, 0.35);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.45);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-primary: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --container-max: 1200px;
            --container-pad: clamp(16px, 4vw, 32px);
        }

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

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

        body {
            font-family: var(--font-primary);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

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

        button,
        input,
        select,
        textarea {
            font-family: var(--font-primary);
            font-size: 1rem;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

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

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: var(--container-pad);
            padding-right: var(--container-pad);
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(8, 9, 15, 0.82);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--glass-border);
            transition: background var(--transition), border-color var(--transition);
        }

        .site-header.scrolled {
            background: rgba(8, 9, 15, 0.95);
            border-bottom-color: var(--glass-border-strong);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: clamp(12px, 3vw, 32px);
            padding: 14px 0;
            min-height: 68px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: clamp(1.1rem, 2.2vw, 1.35rem);
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: -0.02em;
        }

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

        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #fff;
            box-shadow: var(--shadow-glow);
            flex-shrink: 0;
        }

        .logo-text-suffix {
            color: var(--accent-cyan);
            font-weight: 800;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: clamp(4px, 1.5vw, 18px);
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 13px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-link.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
            font-weight: 600;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 0.92rem;
            padding: 11px 22px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            letter-spacing: 0.01em;
            white-space: nowrap;
            line-height: 1.3;
        }

        .btn:active {
            transform: scale(0.97);
        }

        .btn-text {
            color: var(--text-secondary);
            background: transparent;
            border: 1px solid transparent;
        }

        .btn-text:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }

        .btn-solid {
            color: #fff;
            background: linear-gradient(135deg, var(--accent-blue), #0040CC);
            border: 1px solid rgba(0, 82, 255, 0.5);
            box-shadow: 0 0 18px rgba(0, 82, 255, 0.3);
        }

        .btn-solid:hover {
            background: linear-gradient(135deg, var(--accent-blue-hover), #0052FF);
            box-shadow: 0 0 30px rgba(0, 82, 255, 0.5);
            transform: translateY(-1px);
            color: #fff;
        }

        .btn-outline {
            color: var(--accent-cyan);
            background: transparent;
            border: 1px solid var(--glass-border-strong);
        }

        .btn-outline:hover {
            background: rgba(0, 240, 255, 0.08);
            border-color: var(--accent-cyan);
            transform: translateY(-1px);
            color: var(--accent-cyan);
        }

        .btn-glow {
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            border: none;
            box-shadow: var(--shadow-glow);
            color: #fff;
            font-weight: 700;
            position: relative;
            overflow: hidden;
        }

        .btn-glow:hover {
            box-shadow: 0 0 40px rgba(0, 240, 255, 0.55);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-glow::after {
            content: '';
            position: absolute;
            top: -50%;
            left: -60%;
            width: 40%;
            height: 200%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
            transform: rotate(25deg);
            transition: left 0.5s ease;
        }

        .btn-glow:hover::after {
            left: 110%;
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 1rem;
            border-radius: var(--radius-md);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 0.82rem;
            border-radius: var(--radius-sm);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--glass-border);
        }

        .nav-toggle span {
            width: 22px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition);
            display: block;
        }

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

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

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

        /* ============ HERO ============ */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            padding: 120px 0 70px;
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            background-image: linear-gradient(160deg, rgba(8, 9, 15, 0.88) 0%, rgba(13, 17, 30, 0.7) 55%, rgba(8, 9, 15, 0.95) 100%), url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            filter: saturate(1.1);
        }

        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 25% 45%, rgba(0, 82, 255, 0.18) 0%, transparent 55%),
                radial-gradient(ellipse at 75% 60%, rgba(0, 240, 255, 0.1) 0%, transparent 50%);
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1.05fr 0.95fr;
            gap: clamp(32px, 6vw, 64px);
            align-items: center;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid var(--glass-border-strong);
            border-radius: 50px;
            padding: 7px 16px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--accent-cyan);
            letter-spacing: 0.02em;
            margin-bottom: 20px;
            animation: pulse-badge 3s ease-in-out infinite;
        }

        @keyframes pulse-badge {
            0%, 100% {
                box-shadow: 0 0 0 rgba(0, 240, 255, 0.2);
            }
            50% {
                box-shadow: 0 0 18px rgba(0, 240, 255, 0.4);
            }
        }

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

        .hero h1 {
            font-size: clamp(1.9rem, 5vw, 3.1rem);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 18px;
            color: var(--text-primary);
        }

        .hero h1 .gradient-text {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue-hover));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 550px;
            margin-bottom: 30px;
            line-height: 1.65;
        }

        .hero-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 34px;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            padding-top: 24px;
            border-top: 1px solid var(--glass-border);
        }

        .hero-stat-item {
            display: flex;
            flex-direction: column;
            gap: 3px;
        }

        .hero-stat-value {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-cyan);
            letter-spacing: -0.01em;
        }

        .hero-stat-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* Hero Course Card */
        .hero-card {
            background: var(--glass-bg);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-xl);
            padding: clamp(24px, 4vw, 36px);
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.06);
            position: relative;
            overflow: hidden;
        }

        .hero-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan), var(--accent-blue));
            background-size: 200% 100%;
            animation: gradient-slide 4s linear infinite;
        }

        @keyframes gradient-slide {
            0% { background-position: 0% 0%; }
            100% { background-position: 200% 0%; }
        }

        .hero-card-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 50px;
            padding: 5px 13px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 15px;
            letter-spacing: 0.03em;
        }

        .hero-card h3 {
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .hero-card-desc {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin-bottom: 18px;
            line-height: 1.6;
        }

        .hero-card-features {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-bottom: 20px;
        }

        .hero-card-feature {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .hero-card-feature i {
            color: var(--accent-cyan);
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .hero-card-divider {
            border: none;
            border-top: 1px solid var(--glass-border);
            margin: 18px 0;
        }

        .hero-card-price-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 18px;
            flex-wrap: wrap;
            gap: 10px;
        }

        .hero-card-price {
            display: flex;
            flex-direction: column;
            gap: 3px;
        }

        .hero-card-price-label {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .hero-card-price-value {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-cyan);
        }

        .hero-card-price-value del {
            color: var(--text-muted);
            font-weight: 400;
            font-size: 0.85rem;
            margin-left: 6px;
        }

        .hero-card-bonus {
            font-size: 1.4rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue-hover));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-card-actions {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .hero-card-actions .btn {
            width: 100%;
        }

        /* ============ SECTION BASE ============ */
        section {
            padding: clamp(60px, 8vw, 90px) 0;
            position: relative;
        }

        .section-header {
            text-align: left;
            margin-bottom: clamp(32px, 5vw, 50px);
            max-width: 650px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--accent-cyan);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-tag::before {
            content: '';
            width: 22px;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 2px;
            display: inline-block;
        }

        .section-header h2 {
            font-size: clamp(1.5rem, 3.5vw, 2.2rem);
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            line-height: 1.25;
            margin-bottom: 12px;
        }

        .section-header p {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* ============ COMMISSION / OFFERS ============ */
        .offers-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--glass-border);
            border-bottom: 1px solid var(--glass-border);
        }

        .offers-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
        }

        .offer-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .offer-card:hover {
            border-color: var(--glass-border-strong);
            transform: translateY(-4px);
            box-shadow: 0 12px 35px rgba(0, 0, 0, 0.3), var(--shadow-glow);
        }

        .offer-card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 16px;
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.15), rgba(0, 240, 255, 0.1));
            border: 1px solid var(--glass-border-strong);
            color: var(--accent-cyan);
        }

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

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

        .offer-card-value {
            display: inline-block;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--accent-cyan);
            margin-top: 10px;
        }

        /* ============ MATERIALS / GUIDES ============ */
        .materials-section {
            background: var(--bg-primary);
        }

        .materials-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: clamp(28px, 5vw, 50px);
            align-items: start;
        }

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

        .material-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 18px 20px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            transition: all var(--transition);
        }

        .material-item:hover {
            border-color: var(--glass-border-strong);
            background: rgba(255, 255, 255, 0.05);
            transform: translateX(4px);
        }

        .material-item-icon {
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            background: rgba(0, 82, 255, 0.1);
            border: 1px solid rgba(0, 82, 255, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.05rem;
            flex-shrink: 0;
        }

        .material-item-body h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .material-item-body p {
            font-size: 0.87rem;
            color: var(--text-muted);
            line-height: 1.55;
        }

        .material-visual {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            aspect-ratio: 4/3;
            max-height: 420px;
        }

        .material-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .material-visual-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(8, 9, 15, 0.85) 100%);
            display: flex;
            align-items: flex-end;
            padding: 24px;
        }

        .material-visual-overlay span {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        /* ============ FOCUS THEMES ============ */
        .focus-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--glass-border);
            border-bottom: 1px solid var(--glass-border);
        }

        .focus-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 18px;
        }

        .focus-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
            position: relative;
        }

        .focus-card:hover {
            transform: translateY(-4px);
            border-color: var(--glass-border-strong);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3), 0 0 20px rgba(0, 82, 255, 0.15);
        }

        .focus-card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }

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

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

        .focus-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(8, 9, 15, 0.6) 100%);
        }

        .focus-card-body {
            padding: 18px 18px 22px;
        }

        .focus-card-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 7px;
        }

        .focus-card-body p {
            font-size: 0.87rem;
            color: var(--text-muted);
            line-height: 1.55;
        }

        .focus-card-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid rgba(0, 240, 255, 0.2);
            border-radius: 50px;
            padding: 4px 11px;
            margin-bottom: 10px;
        }

        /* ============ MEDIA SCROLL ============ */
        .media-section {
            background: var(--bg-primary);
        }

        .media-scroll-wrapper {
            overflow-x: auto;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            display: flex;
            gap: 18px;
            padding-bottom: 16px;
            scrollbar-width: thin;
            scrollbar-color: var(--accent-blue) transparent;
        }

        .media-scroll-wrapper::-webkit-scrollbar {
            height: 5px;
        }

        .media-scroll-wrapper::-webkit-scrollbar-track {
            background: transparent;
        }

        .media-scroll-wrapper::-webkit-scrollbar-thumb {
            background: var(--accent-blue);
            border-radius: 10px;
        }

        .media-scroll-card {
            flex: 0 0 280px;
            scroll-snap-align: start;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
        }

        .media-scroll-card:hover {
            border-color: var(--glass-border-strong);
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
        }

        .media-scroll-card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }

        .media-scroll-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .media-scroll-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(8, 9, 15, 0.5) 100%);
        }

        .media-scroll-card-body {
            padding: 16px 18px 20px;
        }

        .media-scroll-card-body .media-type {
            font-size: 0.72rem;
            font-weight: 700;
            color: var(--accent-cyan);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 7px;
        }

        .media-scroll-card-body h4 {
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .media-scroll-card-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ============ NEWS / CMS ============ */
        .news-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--glass-border);
            border-bottom: 1px solid var(--glass-border);
        }

        .news-layout {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: clamp(24px, 4vw, 40px);
            align-items: start;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .news-item {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            padding: 18px 22px;
            transition: all var(--transition);
        }

        .news-item:hover {
            border-color: var(--glass-border-strong);
            background: rgba(255, 255, 255, 0.04);
            transform: translateX(3px);
        }

        .news-item a {
            display: block;
            text-decoration: none;
            color: inherit;
        }

        .news-item a:hover {
            color: inherit;
        }

        .news-item h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.45;
        }

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

        .news-item-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.8rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

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

        .news-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-top: 6px;
            line-height: 1.5;
        }

        .news-empty {
            padding: 40px;
            text-align: center;
            background: var(--glass-bg);
            border: 1px dashed var(--glass-border);
            border-radius: var(--radius-md);
            color: var(--text-muted);
            font-size: 0.95rem;
        }

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

        .news-sidebar h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .news-sidebar h3 i {
            color: var(--accent-cyan);
            font-size: 0.9rem;
        }

        .news-sidebar-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .news-sidebar-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.88rem;
            color: var(--text-secondary);
            transition: all var(--transition);
            padding: 8px 10px;
            border-radius: var(--radius-sm);
        }

        .news-sidebar-list a:hover {
            background: rgba(255, 255, 255, 0.04);
            color: var(--accent-cyan);
        }

        .news-sidebar-list a i {
            color: var(--accent-cyan);
            font-size: 0.7rem;
            flex-shrink: 0;
        }

        /* ============ FAQ ============ */
        .faq-section {
            background: var(--bg-primary);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
        }

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            width: 100%;
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            background: transparent;
            border: none;
            transition: color var(--transition);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--glass-border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            color: var(--accent-cyan);
            transition: transform var(--transition);
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: rgba(0, 240, 255, 0.1);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 22px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }

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

        /* ============ JOIN ENTRY (with countdown) ============ */
        .join-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--glass-border);
            border-bottom: 1px solid var(--glass-border);
            position: relative;
            overflow: hidden;
        }

        .join-section-bg {
            position: absolute;
            inset: 0;
            background-image: linear-gradient(135deg, rgba(8, 9, 15, 0.9) 0%, rgba(13, 17, 30, 0.75) 100%), url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            z-index: 0;
        }

        .join-section .container {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: clamp(28px, 5vw, 50px);
            align-items: center;
        }

        .countdown-box {
            background: var(--glass-bg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--glass-border-strong);
            border-radius: var(--radius-xl);
            padding: clamp(24px, 4vw, 34px);
            box-shadow: var(--shadow-glow);
        }

        .countdown-box h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .countdown-box h3 i {
            color: var(--accent-cyan);
            font-size: 1.1rem;
        }

        .countdown-box > p {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin-bottom: 22px;
            line-height: 1.6;
        }

        .countdown-timer {
            display: flex;
            gap: 12px;
            margin-bottom: 22px;
        }

        .countdown-unit {
            flex: 1;
            text-align: center;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            padding: 14px 8px;
        }

        .countdown-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-cyan);
            letter-spacing: -0.02em;
            line-height: 1.1;
            display: block;
        }

        .countdown-label {
            font-size: 0.75rem;
            color: var(--text-muted);
            font-weight: 500;
            letter-spacing: 0.05em;
            text-transform: uppercase;
        }

        .join-steps {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .join-step {
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }

        .join-step-num {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.05rem;
            color: #fff;
            flex-shrink: 0;
            box-shadow: var(--shadow-glow);
        }

        .join-step-body h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .join-step-body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.55;
        }

        /* ============ FINAL CTA ============ */
        .cta-final {
            background: var(--bg-primary);
            text-align: center;
            padding: clamp(70px, 9vw, 100px) 0;
            position: relative;
            overflow: hidden;
        }

        .cta-final::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 50%, rgba(0, 82, 255, 0.15) 0%, transparent 55%);
            pointer-events: none;
        }

        .cta-final .container {
            position: relative;
            z-index: 1;
            max-width: 700px;
            margin: 0 auto;
            text-align: center;
        }

        .cta-final h2 {
            font-size: clamp(1.6rem, 4vw, 2.4rem);
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .cta-final p {
            font-size: 1.02rem;
            color: var(--text-muted);
            margin-bottom: 30px;
            line-height: 1.65;
            max-width: 540px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-final .hero-cta-row {
            justify-content: center;
            margin-bottom: 0;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--glass-border-strong);
            padding: 50px 0 30px;
            position: relative;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: clamp(24px, 4vw, 40px);
            margin-bottom: 36px;
        }

        .footer-brand h3 {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand h3 .footer-logo-icon {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.65;
            max-width: 320px;
            margin-bottom: 16px;
        }

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

        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--glass-border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 0.95rem;
            transition: all var(--transition);
        }

        .footer-social a:hover {
            background: var(--accent-blue);
            border-color: var(--accent-blue);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow);
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 9px;
        }

        .footer-col ul a {
            font-size: 0.87rem;
            color: var(--text-muted);
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-col ul a:hover {
            color: var(--accent-cyan);
            transform: translateX(3px);
        }

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

        .footer-payment {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-payment-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--glass-border);
            border-radius: 50px;
            padding: 7px 14px;
            white-space: nowrap;
        }

        .footer-payment-badge i {
            font-size: 0.8rem;
            color: var(--accent-cyan);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 14px;
            padding-top: 20px;
            border-top: 1px solid var(--glass-border);
        }

        .footer-bottom p {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

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

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

        .footer-badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: #D32F2F;
            color: #fff;
            font-size: 0.8rem;
            font-weight: 800;
            border: 2px solid #fff;
        }

        .footer-badge-license {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--glass-border);
            border-radius: 50px;
            padding: 6px 13px;
        }

        .footer-badge-license i {
            color: var(--accent-cyan);
        }

        /* ============ FAB ============ */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 900;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 50px;
            background: rgba(0, 0, 0, 0.65);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(0, 0, 0, 0.65), rgba(0, 0, 0, 0.65)),
                linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            background-origin: border-box;
            background-clip: padding-box, border-box;
            box-shadow: 0 0 18px rgba(0, 240, 255, 0.35);
            opacity: 0.7;
            transition: all var(--transition);
            animation: fab-breath 3s ease-in-out infinite;
            cursor: pointer;
            color: var(--accent-cyan);
            font-size: 1.3rem;
        }

        @keyframes fab-breath {
            0%, 100% {
                box-shadow: 0 0 12px rgba(0, 240, 255, 0.25);
            }
            50% {
                box-shadow: 0 0 28px rgba(0, 240, 255, 0.55);
            }
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 35px rgba(0, 240, 255, 0.7);
            animation: none;
        }

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

        .fab-dot {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #FF4081;
            border: 2px solid var(--bg-primary);
            animation: dot-blink 1.5s ease-in-out infinite;
        }

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

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .hero .container {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .hero-card {
                max-width: 520px;
            }

            .materials-layout {
                grid-template-columns: 1fr;
            }

            .material-visual {
                max-height: 300px;
            }

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

            .join-section .container {
                grid-template-columns: 1fr;
            }

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

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

            .nav-menu {
                position: fixed;
                top: 68px;
                left: 0;
                right: 0;
                background: rgba(8, 9, 15, 0.97);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                border-bottom: 1px solid var(--glass-border-strong);
                flex-direction: column;
                padding: 16px 20px 20px;
                gap: 8px;
                display: none;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
                z-index: 999;
            }

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

            .nav-link {
                width: 100%;
                padding: 13px 16px;
                font-size: 0.95rem;
                justify-content: flex-start;
                border-radius: var(--radius-sm);
            }

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

            .nav-actions .btn {
                padding: 9px 14px;
                font-size: 0.82rem;
            }

            .hero {
                padding: 100px 0 50px;
                min-height: auto;
            }

            .hero h1 {
                font-size: clamp(1.6rem, 6vw, 2.2rem);
            }

            .hero-stats {
                gap: 18px;
            }

            .countdown-timer {
                gap: 7px;
            }

            .countdown-number {
                font-size: 1.5rem;
            }

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

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

            .fab {
                width: 46px;
                height: 46px;
                font-size: 1.15rem;
                bottom: 80px;
                left: 12px;
            }
        }

        @media (max-width: 520px) {
            .nav-wrapper {
                min-height: 60px;
                padding: 10px 0;
            }

            .nav-menu {
                top: 60px;
            }

            .logo-link {
                font-size: 1rem;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.95rem;
                border-radius: 8px;
            }

            .hero {
                padding: 85px 0 40px;
            }

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

            .hero-cta-row .btn {
                flex: 1 1 100%;
                justify-content: center;
            }

            .hero-card {
                padding: 20px;
                border-radius: var(--radius-lg);
            }

            .hero-card-actions .btn {
                width: 100%;
                justify-content: center;
            }

            .hero-stats {
                flex-direction: column;
                gap: 14px;
            }

            .hero-stat-value {
                font-size: 1.3rem;
            }

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

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

            .media-scroll-card {
                flex: 0 0 230px;
            }

            .news-item {
                padding: 14px 16px;
            }

            .faq-question {
                padding: 14px 16px;
                font-size: 0.92rem;
            }

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

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

            .countdown-box {
                padding: 20px;
                border-radius: var(--radius-lg);
            }

            .btn-lg {
                padding: 12px 22px;
                font-size: 0.95rem;
            }

            section {
                padding: 45px 0;
            }

            .cta-final {
                padding: 50px 0;
            }
        }

/* roulang page: category1 */
:root {
            /* Color Scheme - Style D: Cyber-Tron & Electric Blue */
            --bg-primary: #08090F;
            --bg-secondary: #0D111E;
            --bg-card: rgba(13, 17, 30, 0.85);
            --accent-primary: #0052FF;
            --accent-secondary: #00F0FF;
            --accent-glow: rgba(0, 240, 255, 0.5);
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #94A3B8;
            --border-subtle: rgba(0, 240, 255, 0.2);
            --border-glow: rgba(0, 82, 255, 0.4);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-glow-intense: 0 0 30px rgba(0, 82, 255, 0.6);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

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

        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(8, 9, 15, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-subtle);
            transition: var(--transition-smooth);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            transition: var(--transition-fast);
        }
        
        .logo-link:hover {
            text-shadow: var(--shadow-glow);
        }
        
        .logo-icon {
            color: var(--accent-secondary);
            font-size: 1.6rem;
        }
        
        .logo-text-suffix {
            color: var(--accent-secondary);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 16px;
            border-radius: var(--radius-md);
            text-decoration: none;
            color: var(--text-secondary);
            font-size: 0.93rem;
            font-weight: 500;
            transition: var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-link i {
            font-size: 0.85rem;
            opacity: 0.7;
            transition: var(--transition-fast);
        }

        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(0, 240, 255, 0.08);
        }
        
        .nav-link.active {
            color: var(--accent-secondary);
            background: rgba(0, 240, 255, 0.12);
            font-weight: 600;
        }
        
        .nav-link.active i {
            opacity: 1;
            color: var(--accent-secondary);
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: var(--radius-md);
            font-size: 0.93rem;
            font-weight: 600;
            text-decoration: none;
            cursor: pointer;
            border: none;
            transition: var(--transition-smooth);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

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

        .btn-text {
            background: transparent;
            color: var(--text-secondary);
        }

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

        .btn-solid {
            background: linear-gradient(135deg, var(--accent-primary), #0040CC);
            color: #FFFFFF;
            box-shadow: 0 4px 14px rgba(0, 82, 255, 0.35);
        }

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

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

        .btn-ghost {
            background: transparent;
            color: var(--accent-secondary);
            border: 1px solid var(--accent-secondary);
        }

        .btn-ghost:hover {
            background: rgba(0, 240, 255, 0.08);
            box-shadow: var(--shadow-glow);
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 1.05rem;
            border-radius: var(--radius-lg);
        }

        /* Nav Toggle */
        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 36px;
            height: 36px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 6px;
        }
        
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: var(--transition-fast);
        }

        /* Page Structure */
        .page-content {
            padding-top: 100px;
            min-height: 100vh;
        }

        /* Hero Section */
        .page-hero {
            padding: 60px 0 50px;
            position: relative;
            overflow: hidden;
        }
        
        .page-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(0, 82, 255, 0.15) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }
        
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -15%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.08) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

        .hero-inner {
            position: relative;
            z-index: 1;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 50px;
        }

        .hero-text {
            flex: 1 1 450px;
        }
        
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid var(--border-subtle);
            color: var(--accent-secondary);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
        }
        
        .hero-badge i {
            font-size: 0.8rem;
        }
        
        .hero-text h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }
        
        .hero-text h1 .highlight {
            color: var(--accent-secondary);
            text-shadow: 0 0 20px rgba(0, 240, 255, 0.6);
        }
        
        .hero-text p {
            font-size: 1.12rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 30px;
            max-width: 90%;
        }
        
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        
        .hero-visual {
            flex: 1 1 380px;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        
        .hero-visual img {
            width: 100%;
            max-width: 420px;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-glow-intense);
            border: 1px solid var(--border-subtle);
        }

        /* Section */
        .section {
            padding: 55px 0;
        }
        
        .section-header {
            margin-bottom: 40px;
        }
        
        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--accent-secondary);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 10px;
        }
        
        .section-header h2 {
            font-size: 2.1rem;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 10px;
        }
        
        .section-header p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 700px;
        }

        /* Cards */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 24px;
        }

        .card {
            background: var(--bg-card);
            backdrop-filter: blur(8px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        
        .card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent-secondary), transparent);
            opacity: 0;
            transition: var(--transition-smooth);
        }
        
        .card:hover {
            border-color: var(--accent-secondary);
            box-shadow: var(--shadow-glow);
            transform: translateY(-4px);
        }
        
        .card:hover::before {
            opacity: 1;
        }
        
        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: rgba(0, 240, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-secondary);
            margin-bottom: 18px;
            flex-shrink: 0;
        }
        
        .card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        
        .card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        
        .card-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(0, 82, 255, 0.15);
            color: var(--accent-primary);
            border: 1px solid rgba(0, 82, 255, 0.25);
        }
        
        .card-tag.hot {
            background: rgba(255, 69, 0, 0.2);
            color: #FF6347;
            border-color: rgba(255, 69, 0, 0.3);
        }

        .promo-highlight {
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.2), rgba(0, 240, 255, 0.1));
            border: 2px solid var(--accent-secondary);
            border-radius: var(--radius-xl);
            padding: 36px;
            text-align: left;
            margin: 30px 0;
            position: relative;
            overflow: hidden;
        }
        
        .promo-highlight .promo-sticker {
            position: absolute;
            top: 16px;
            right: 16px;
            background: #FF4500;
            color: #fff;
            padding: 6px 18px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.82rem;
            text-transform: uppercase;
            letter-spacing: 0.8px;
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.7; }
        }
        
        .promo-highlight h2 {
            font-size: 2rem;
            margin-bottom: 12px;
            max-width: 70%;
        }
        
        .promo-highlight p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            margin-bottom: 20px;
        }

        /* Steps / Process */
        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            counter-reset: step;
        }
        
        .step-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 24px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            transition: var(--transition-smooth);
            position: relative;
        }
        
        .step-item:hover {
            border-color: var(--accent-secondary);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.15);
        }
        
        .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
            color: #fff;
            flex-shrink: 0;
        }
        
        .step-content h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        
        .step-content p {
            font-size: 0.93rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition-smooth);
        }
        
        .faq-item:hover {
            border-color: var(--accent-secondary);
        }
        
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 20px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            text-align: left;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            transition: var(--transition-fast);
        }
        
        .faq-question i {
            color: var(--accent-secondary);
            transition: var(--transition-fast);
            font-size: 1rem;
        }
        
        .faq-question:hover {
            background: rgba(0, 240, 255, 0.04);
        }
        
        .faq-answer {
            padding: 0 24px 20px;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* CTA Section */
        .cta-section {
            padding: 60px 0;
            text-align: center;
            position: relative;
        }
        
        .cta-block {
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.25), rgba(0, 240, 255, 0.08));
            border: 1px solid var(--accent-secondary);
            border-radius: var(--radius-xl);
            padding: 50px 30px;
            position: relative;
            overflow: hidden;
        }
        
        .cta-block h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
        }
        
        .cta-block p {
            font-size: 1.08rem;
            color: var(--text-secondary);
            margin-bottom: 28px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: 50px 0 30px;
            margin-top: 40px;
        }
        
        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-brand h3 {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.3rem;
            margin-bottom: 12px;
        }
        
        .footer-logo-icon {
            color: var(--accent-secondary);
        }
        
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        
        .footer-social {
            display: flex;
            gap: 10px;
        }
        
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 0.9rem;
            transition: var(--transition-fast);
            text-decoration: none;
        }
        
        .footer-social a:hover {
            background: var(--accent-primary);
            color: #fff;
            box-shadow: var(--shadow-glow);
        }
        
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text-primary);
        }
        
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        
        .footer-col ul li a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.9rem;
            transition: var(--transition-fast);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        
        .footer-col ul li a i {
            font-size: 0.7rem;
            color: var(--accent-secondary);
        }
        
        .footer-col ul li a:hover {
            color: var(--accent-secondary);
        }
        
        .footer-payment {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        
        .footer-payment-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 6px 12px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 6px;
            font-size: 0.82rem;
            color: var(--text-secondary);
        }
        
        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        
        .footer-bottom a {
            color: var(--accent-secondary);
            text-decoration: none;
        }
        
        .footer-bottom a:hover {
            text-decoration: underline;
        }

        /* FAB */
        .fab-left {
            position: fixed;
            left: 20px;
            bottom: 96px;
            z-index: 999;
            width: 54px;
            height: 54px;
            border-radius: 50px;
            background: rgba(8, 9, 15, 0.8);
            backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-secondary);
            font-size: 1.3rem;
            box-shadow: var(--shadow-glow);
            cursor: pointer;
            transition: var(--transition-smooth);
            animation: float 3s ease-in-out infinite;
        }
        
        .fab-left::before {
            content: '';
            position: absolute;
            inset: -4px;
            border-radius: inherit;
            padding: 4px;
            background: linear-gradient(135deg, #00F0FF, #0052FF);
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            z-index: -1;
        }
        
        .fab-left:hover {
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.8);
        }
        
        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        
        .fab-notification {
            position: absolute;
            top: 6px;
            right: 6px;
            width: 12px;
            height: 12px;
            background: #FF4500;
            border-radius: 50%;
            border: 2px solid #08090F;
            animation: blink 1.5s infinite;
        }
        
        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-menu {
                display: none;
                position: fixed;
                top: 68px;
                left: 0;
                width: 100%;
                background: rgba(8, 9, 15, 0.96);
                flex-direction: column;
                padding: 16px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border-subtle);
                backdrop-filter: blur(16px);
                z-index: 999;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-toggle {
                display: flex;
            }
            .hero-inner {
                flex-direction: column;
                text-align: center;
            }
            .hero-text {
                text-align: center;
            }
            .hero-text p {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-actions {
                justify-content: center;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .promo-highlight h2 {
                max-width: 100%;
            }
        }

        @media (max-width: 768px) {
            .hero-text h1 {
                font-size: 2rem;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-block {
                padding: 36px 20px;
            }
            .cta-block h2 {
                font-size: 1.5rem;
            }
            .promo-highlight {
                padding: 24px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #08090F;
            --bg-secondary: #0D111E;
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --text-white: #FFFFFF;
            --text-silver: #CBD5E1;
            --text-muted: #94A3B8;
            --border-glow: #1E293B;
            --border-active: #0052FF;
            --card-bg: rgba(13, 17, 30, 0.8);
            --card-border: rgba(0, 240, 255, 0.15);
            --shadow-neon: 0 0 20px rgba(0, 240, 255, 0.25);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
            --radius-sm: 12px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --font-heading: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --font-body: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

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

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

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(8, 9, 15, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-glow);
            transition: all var(--transition-smooth);
        }

        .site-header.scrolled {
            background: rgba(8, 9, 15, 0.95);
            border-bottom-color: var(--border-active);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            gap: 24px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-white);
            white-space: nowrap;
            letter-spacing: -0.3px;
            transition: color var(--transition-fast);
        }

        .logo-link:hover {
            color: var(--accent-cyan);
        }

        .logo-icon {
            color: var(--accent-cyan);
            font-size: 1.5rem;
            filter: drop-shadow(0 0 8px rgba(0, 240, 255, 0.5));
        }

        .logo-text-suffix {
            color: var(--accent-cyan);
            font-weight: 800;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 10px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-silver);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

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

        .nav-link.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.12);
            font-weight: 600;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            font-family: var(--font-body);
            letter-spacing: 0.2px;
        }

        .btn-solid {
            background: var(--accent-blue);
            color: var(--text-white);
            box-shadow: 0 0 16px rgba(0, 82, 255, 0.4);
        }

        .btn-solid:hover {
            background: #1a6aff;
            box-shadow: 0 0 24px rgba(0, 82, 255, 0.6);
            transform: translateY(-2px);
            color: var(--text-white);
        }

        .btn-text {
            background: transparent;
            color: var(--text-silver);
            border: 1px solid transparent;
        }

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

        .btn-sm {
            padding: 7px 14px;
            font-size: 0.85rem;
            border-radius: 10px;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 6px;
            z-index: 1060;
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-white);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        /* Main Content */
        main {
            padding-top: 70px;
        }

        /* Category Hero */
        .category-hero {
            position: relative;
            background: linear-gradient(135deg, #0D111E 0%, #08090F 100%);
            padding: 80px 0 60px;
            overflow: hidden;
        }

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

        .category-hero-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
        }

        .category-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(0, 240, 255, 0.12);
            border: 1px solid rgba(0, 240, 255, 0.3);
            border-radius: 20px;
            color: var(--accent-cyan);
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .category-hero h1 {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }

        .category-hero p {
            font-size: 1.15rem;
            color: var(--text-silver);
            line-height: 1.7;
            margin-bottom: 28px;
        }

        .btn-lg {
            padding: 14px 28px;
            font-size: 1rem;
            border-radius: 14px;
        }

        .btn-cyan {
            background: var(--accent-cyan);
            color: #08090F;
            font-weight: 700;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.5);
        }

        .btn-cyan:hover {
            background: #33f5ff;
            box-shadow: 0 0 32px rgba(0, 240, 255, 0.7);
            transform: translateY(-3px);
            color: #08090F;
        }

        /* Sections General */
        .section {
            padding: 70px 0;
        }

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

        .section-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            line-height: 1.6;
        }

        /* Glass Cards */
        .glass-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-md);
            padding: 32px;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
        }

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

        .glass-card-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(0, 240, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.5rem;
            margin-bottom: 18px;
        }

        .glass-card h3 {
            font-family: var(--font-heading);
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 10px;
        }

        .glass-card p {
            font-size: 0.95rem;
            color: var(--text-silver);
            line-height: 1.6;
        }

        /* Strategy Flow */
        .strategy-flow {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
            margin-top: 20px;
        }

        .flow-step {
            position: relative;
            padding: 28px 24px;
            background: var(--card-bg);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-md);
            transition: all var(--transition-smooth);
        }

        .flow-step:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 24px rgba(0, 240, 255, 0.15);
        }

        .flow-step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--accent-blue);
            color: var(--text-white);
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 14px;
        }

        .flow-step h4 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
        }

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

        /* Tips Grid */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
        }

        .tip-card {
            padding: 24px;
            border-radius: var(--radius-sm);
            background: rgba(0, 82, 255, 0.05);
            border: 1px solid rgba(0, 82, 255, 0.15);
            transition: all var(--transition-fast);
        }

        .tip-card:hover {
            background: rgba(0, 82, 255, 0.1);
            border-color: var(--accent-blue);
        }

        .tip-card i {
            color: var(--accent-cyan);
            font-size: 1.2rem;
            margin-bottom: 12px;
            display: block;
        }

        .tip-card h4 {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
        }

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

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

        .faq-item {
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            background: rgba(13, 17, 30, 0.5);
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.3);
        }

        .faq-question {
            width: 100%;
            padding: 18px 24px;
            background: none;
            border: none;
            color: var(--text-white);
            font-weight: 600;
            font-size: 1rem;
            text-align: left;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-family: var(--font-body);
            transition: color var(--transition-fast);
        }

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

        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-silver);
            font-size: 0.95rem;
            line-height: 1.6;
            display: none;
        }

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

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

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #0A0E1A 0%, #08090F 100%);
            border: 1px solid rgba(0, 240, 255, 0.2);
            border-radius: var(--radius-lg);
            padding: 50px 40px;
            text-align: left;
        }

        .cta-section h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 14px;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: var(--text-silver);
            margin-bottom: 24px;
            line-height: 1.6;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-glow);
            padding: 60px 0 20px;
            margin-top: 40px;
        }

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

        .footer-brand h3 {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-logo-icon {
            color: var(--accent-cyan);
            font-size: 1.1rem;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-silver);
            transition: all var(--transition-fast);
        }

        .footer-social a:hover {
            background: var(--accent-blue);
            color: var(--text-white);
            transform: translateY(-2px);
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
        }

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

        .footer-col ul li a {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
            display: flex;
            align-items: center;
            gap: 6px;
        }

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

        .footer-payment {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-payment-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 6px 12px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.05);
            font-size: 0.8rem;
            color: var(--text-silver);
            border: 1px solid var(--border-glow);
        }

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

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

        .footer-bottom a:hover {
            text-decoration: underline;
        }

        /* FAB */
        .fab-floating {
            position: fixed;
            left: 20px;
            bottom: 80px;
            z-index: 1040;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.4rem;
            cursor: pointer;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
            transition: all var(--transition-smooth);
            animation: fabPulse 2.5s ease-in-out infinite;
        }

        .fab-floating::before {
            content: '';
            position: absolute;
            inset: -3px;
            border-radius: 50%;
            padding: 2px;
            background: linear-gradient(135deg, #00F0FF, #0052FF);
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
        }

        @keyframes fabPulse {
            0%,
            100% {
                opacity: 0.7;
                transform: translateY(0);
            }
            50% {
                opacity: 1;
                transform: translateY(-6px);
            }
        }

        .fab-floating:hover {
            opacity: 1;
            box-shadow: 0 0 32px rgba(0, 240, 255, 0.7);
            transform: scale(1.1);
            animation: none;
        }

        .fab-notification {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #FF007F;
            border: 2px solid #08090F;
            animation: blink 1.5s infinite;
        }

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

        /* Responsive */
        @media (max-width: 991px) {
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }

            .nav-menu {
                gap: 0;
            }

            .nav-link {
                padding: 6px 10px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 767px) {
            .nav-menu {
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                bottom: 0;
                background: rgba(8, 9, 15, 0.97);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                justify-content: flex-start;
                padding: 24px;
                gap: 8px;
                transform: translateX(100%);
                transition: transform 0.3s ease;
                z-index: 1055;
            }

            .nav-menu.open {
                transform: translateX(0);
            }

            .nav-link {
                font-size: 1rem;
                padding: 14px 16px;
                width: 100%;
            }

            .nav-toggle {
                display: flex;
            }

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

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

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

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

            .fab-floating {
                left: 16px;
                bottom: 60px;
                width: 46px;
                height: 46px;
            }
        }

/* roulang page: category3 */
:root {
            --deep-navy: #08090F;
            --cyber-navy: #0D111E;
            --electric-blue: #0052FF;
            --neon-cyan: #00F0FF;
            --text-white: #FFFFFF;
            --text-silver: #CBD5E1;
            --text-muted: #8B9AB4;
            --border-glow: rgba(0, 240, 255, 0.4);
            --border-subtle: rgba(0, 82, 255, 0.25);
            --card-bg: rgba(13, 17, 30, 0.85);
            --card-bg-hover: rgba(20, 26, 46, 0.92);
            --shadow-glow: 0 0 18px rgba(0, 240, 255, 0.35);
            --shadow-lg-glow: 0 0 35px rgba(0, 82, 255, 0.45);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-xl: 3.2rem;
            --font-lg: 2.4rem;
            --font-md: 1.35rem;
            --font-sm: 1.05rem;
            --font-xs: 0.92rem;
            --spacing-xs: 0.6rem;
            --spacing-sm: 1.2rem;
            --spacing-md: 2.2rem;
            --spacing-lg: 3.6rem;
            --spacing-xl: 5.5rem;
        }

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

        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--deep-navy);
            color: var(--text-white);
            line-height: 1.65;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(ellipse at 30% 20%, rgba(0, 82, 255, 0.12) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 60%, rgba(0, 240, 255, 0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 50% 80%, rgba(0, 82, 255, 0.06) 0%, transparent 50%);
            pointer-events: none;
            z-index: 0;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
            position: relative;
            z-index: 1;
        }

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

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

        a:hover {
            color: var(--text-white);
        }

        h1,
        h2,
        h3,
        h4 {
            line-height: 1.3;
            font-weight: 700;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 2rem;
            border-radius: var(--radius-xl);
            font-weight: 600;
            font-size: var(--font-sm);
            cursor: pointer;
            transition: all var(--transition-smooth);
            border: 2px solid transparent;
            text-transform: none;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .btn:focus-visible {
            outline: 2px solid var(--neon-cyan);
            outline-offset: 3px;
        }

        .btn-solid {
            background: linear-gradient(135deg, var(--electric-blue), #0039CC);
            color: var(--text-white);
            border-color: var(--electric-blue);
            box-shadow: 0 0 14px rgba(0, 82, 255, 0.45);
        }

        .btn-solid:hover {
            background: linear-gradient(135deg, #1A6BFF, var(--electric-blue));
            box-shadow: var(--shadow-lg-glow);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            border-color: var(--neon-cyan);
            color: var(--neon-cyan);
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.25);
        }

        .btn-outline:hover {
            background: rgba(0, 240, 255, 0.12);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
            color: var(--neon-cyan);
        }

        .btn-text {
            background: transparent;
            border-color: transparent;
            color: var(--text-silver);
            padding: 0.6rem 1rem;
            font-weight: 500;
        }

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

        .btn-sm {
            padding: 0.5rem 1.4rem;
            font-size: var(--font-xs);
        }

        .btn-lg {
            padding: 1rem 2.8rem;
            font-size: var(--font-md);
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(8, 9, 15, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
            transition: background var(--transition-smooth);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 0.8rem;
            padding-bottom: 0.8rem;
            flex-wrap: nowrap;
            position: relative;
            z-index: 1001;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-white);
            text-decoration: none;
            letter-spacing: -0.01em;
        }

        .logo-link:hover {
            color: var(--neon-cyan);
        }

        .logo-icon {
            font-size: 1.6rem;
            color: var(--neon-cyan);
            filter: drop-shadow(0 0 6px rgba(0, 240, 255, 0.7));
        }

        .logo-text-suffix {
            color: var(--neon-cyan);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.55rem 1rem;
            border-radius: var(--radius-xl);
            font-weight: 500;
            font-size: var(--font-xs);
            color: var(--text-silver);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

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

        .nav-link.active {
            color: var(--neon-cyan);
            background: rgba(0, 240, 255, 0.12);
            box-shadow: 0 0 8px rgba(0, 240, 255, 0.5);
        }

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

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 0.4rem;
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-white);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        @media (max-width: 992px) {
            .nav-menu {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: rgba(13, 17, 30, 0.96);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 6rem 1.5rem 2rem;
                gap: 0.6rem;
                transition: right var(--transition-smooth);
                border-left: 1px solid var(--border-subtle);
                box-shadow: -10px 0 30px rgba(0, 0, 0, 0.6);
            }

            .nav-menu.active {
                right: 0;
            }

            .nav-link {
                width: 100%;
                font-size: 1.1rem;
                padding: 0.8rem 1.2rem;
            }

            .nav-actions .btn-text,
            .nav-actions .btn-solid {
                display: inline-flex;
            }

            .nav-toggle {
                display: flex;
                z-index: 1100;
            }
        }

        .page-hero {
            padding: 7rem 0 4rem;
            position: relative;
            background: linear-gradient(180deg, rgba(0, 82, 255, 0.15) 0%, rgba(8, 9, 15, 0.6) 100%);
            border-bottom: 1px solid var(--border-subtle);
            text-align: left;
        }

        .page-hero-content {
            display: flex;
            align-items: center;
            gap: 3rem;
            flex-wrap: wrap;
        }

        .page-hero-text {
            flex: 1 1 450px;
        }

        .page-hero-text h1 {
            font-size: var(--font-xl);
            font-weight: 800;
            margin-bottom: 1.2rem;
            background: linear-gradient(135deg, #FFFFFF 0%, #00F0FF 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-hero-text .subtitle {
            font-size: var(--font-md);
            color: var(--text-silver);
            margin-bottom: 2rem;
            line-height: 1.6;
        }

        .page-hero-visual {
            flex: 1 1 380px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg-glow);
            border: 1px solid var(--border-glow);
        }

        .page-hero-visual img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        .promo-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }

        .promo-card {
            background: var(--card-bg);
            backdrop-filter: blur(12px);
            border-radius: var(--radius-md);
            padding: 2rem;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .promo-card::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.08) 0%, transparent 70%);
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }

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

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

        .promo-badge {
            display: inline-block;
            background: linear-gradient(135deg, #FF007F, #FF4500);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 700;
            padding: 0.25rem 0.9rem;
            border-radius: 20px;
            letter-spacing: 0.04em;
            margin-bottom: 1rem;
            text-transform: uppercase;
        }

        .promo-card h3 {
            font-size: 1.5rem;
            margin-bottom: 0.8rem;
            color: var(--neon-cyan);
        }

        .promo-card p {
            color: var(--text-silver);
            font-size: var(--font-sm);
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }

        .promo-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: #FFD700;
            margin: 1rem 0;
        }

        .section-title {
            font-size: var(--font-lg);
            font-weight: 800;
            margin-bottom: 1rem;
            color: var(--text-white);
            text-align: left;
        }

        .section-subtitle {
            font-size: var(--font-md);
            color: var(--text-silver);
            margin-bottom: 2.5rem;
            text-align: left;
        }

        .steps-flow {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
            align-items: flex-start;
            margin: 3rem 0;
        }

        .step-item {
            flex: 1 1 220px;
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            border: 1px solid var(--border-subtle);
            text-align: left;
            position: relative;
        }

        .step-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--neon-cyan);
            opacity: 0.8;
        }

        .step-item h4 {
            margin: 0.8rem 0 0.5rem;
            font-size: 1.2rem;
        }

        .step-item p {
            color: var(--text-silver);
            font-size: var(--font-xs);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
            margin: 3rem 0;
        }

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

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

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            color: var(--text-white);
            padding: 1.4rem 1.8rem;
            font-size: var(--font-sm);
            font-weight: 600;
            text-align: left;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: color var(--transition-fast);
        }

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

        .faq-answer {
            padding: 0 1.8rem 1.4rem;
            color: var(--text-silver);
            font-size: var(--font-xs);
            line-height: 1.7;
            display: none;
        }

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

        .faq-item.active .faq-question {
            color: var(--neon-cyan);
        }

        .cta-section {
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.25), rgba(0, 240, 255, 0.1));
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: 3rem 2.5rem;
            margin: 4rem 0;
            text-align: center;
        }

        .site-footer {
            background: rgba(13, 17, 30, 0.9);
            border-top: 1px solid var(--border-subtle);
            padding: 4rem 0 2rem;
            margin-top: 3rem;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
        }

        .footer-brand h3 {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.4rem;
            margin-bottom: 1rem;
        }

        .footer-logo-icon {
            color: var(--neon-cyan);
        }

        .footer-social {
            display: flex;
            gap: 0.8rem;
            margin-top: 1rem;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-silver);
            transition: all var(--transition-fast);
        }

        .footer-social a:hover {
            border-color: var(--neon-cyan);
            color: var(--neon-cyan);
            box-shadow: var(--shadow-glow);
        }

        .footer-col h4 {
            font-size: 1rem;
            margin-bottom: 1rem;
            color: var(--neon-cyan);
        }

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

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

        .footer-col ul li a {
            color: var(--text-silver);
            font-size: var(--font-xs);
        }

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

        .footer-payment {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .footer-payment-badge {
            background: rgba(255, 255, 255, 0.06);
            padding: 0.4rem 0.8rem;
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--text-silver);
            border: 1px solid var(--border-subtle);
        }

        @media (max-width: 768px) {
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }

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

            .page-hero-content {
                flex-direction: column;
            }

            .page-hero-text h1 {
                font-size: 2.2rem;
            }
        }

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

            .page-hero {
                padding: 5.5rem 0 2.5rem;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-tertiary: #0B3C25;
            --accent-gold: #FFD700;
            --accent-gold-dark: #C5A059;
            --accent-red: #D32F2F;
            --accent-red-light: #FF5252;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #8BAF9E;
            --text-gold-muted: #D4AC0D;
            --border-gold: rgba(255, 215, 0, 0.25);
            --border-gold-strong: rgba(255, 215, 0, 0.45);
            --border-mint: rgba(209, 242, 235, 0.12);
            --border-dark: rgba(255, 255, 255, 0.06);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.3);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.4);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.15);
            --shadow-gold-hover: 0 8px 32px rgba(255, 215, 0, 0.25);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --spacing-xs: 4px;
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 24px;
            --spacing-xl: 32px;
            --spacing-2xl: 48px;
            --spacing-3xl: 64px;
            --spacing-4xl: 96px;
            --transition-fast: 0.15s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --font-primary: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-mono: 'JetBrains Mono', monospace;
            --header-height: 76px;
        }
        
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        html {
            scroll-behavior: smooth;
            -webkit-tap-highlight-color: transparent;
            font-size: 16px;
        }
        
        body {
            font-family: var(--font-primary);
            line-height: 1.65;
            color: var(--text-mint);
            background: var(--bg-primary);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        
        a:hover {
            color: var(--text-white);
        }
        
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }
        
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }
        
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }
        
        @media (min-width: 768px) {
            .container {
                padding: 0 var(--spacing-xl);
            }
        }
        
        @media (min-width: 1024px) {
            .container {
                padding: 0 var(--spacing-2xl);
            }
        }
        
        /* ==================== HEADER / NAV ==================== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-gold);
            box-shadow: 0 2px 24px rgba(0, 0, 0, 0.3);
            height: var(--header-height);
        }
        
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            height: 100%;
            flex-wrap: nowrap;
        }
        
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--text-white);
            letter-spacing: -0.02em;
            white-space: nowrap;
            flex-shrink: 0;
            transition: opacity var(--transition-base);
        }
        
        .logo-link:hover {
            opacity: 0.85;
            color: var(--text-white);
        }
        
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--accent-gold) 0%, #B8860B 50%, var(--accent-gold) 100%);
            color: var(--bg-primary);
            border-radius: 50%;
            font-size: 1rem;
            box-shadow: var(--shadow-gold);
            flex-shrink: 0;
        }
        
        .logo-text-suffix {
            color: var(--accent-gold);
            font-weight: 900;
        }
        
        .nav-menu {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
            flex: 1;
            justify-content: center;
            min-width: 0;
        }
        
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 16px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-mint);
            border-radius: var(--radius-full);
            transition: all var(--transition-base);
            white-space: nowrap;
            position: relative;
        }
        
        .nav-link i {
            font-size: 0.85rem;
            color: var(--accent-gold);
        }
        
        .nav-link:hover {
            color: var(--text-white);
            background: rgba(255, 215, 0, 0.08);
        }
        
        .nav-link.active {
            color: var(--bg-primary);
            background: linear-gradient(135deg, var(--accent-gold) 0%, #FFC107 50%, var(--accent-gold) 100%);
            font-weight: 700;
            box-shadow: var(--shadow-gold);
        }
        
        .nav-link.active i {
            color: var(--bg-primary);
        }
        
        .nav-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
        }
        
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 0.95rem;
            font-weight: 700;
            border-radius: var(--radius-full);
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.01em;
            position: relative;
            overflow: hidden;
        }
        
        .btn:hover {
            transform: translateY(-2px);
        }
        
        .btn:active {
            transform: translateY(0) scale(0.98);
        }
        
        .btn:focus-visible {
            outline: 3px solid var(--accent-gold);
            outline-offset: 2px;
        }
        
        .btn-sm {
            padding: 8px 16px;
            font-size: 0.85rem;
        }
        
        .btn-lg {
            padding: 16px 32px;
            font-size: 1.05rem;
        }
        
        .btn-solid {
            background: linear-gradient(135deg, var(--accent-gold) 0%, #E6A817 50%, var(--accent-gold) 100%);
            color: var(--bg-primary);
            box-shadow: var(--shadow-gold);
            font-weight: 800;
        }
        
        .btn-solid:hover {
            box-shadow: var(--shadow-gold-hover);
            color: var(--bg-primary);
            transform: translateY(-2px);
        }
        
        .btn-text {
            color: var(--text-mint);
            background: transparent;
            border: 1px solid var(--border-mint);
        }
        
        .btn-text:hover {
            color: var(--text-white);
            border-color: var(--border-gold-strong);
            background: rgba(255, 215, 0, 0.05);
        }
        
        .btn-outline-gold {
            background: transparent;
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold);
            font-weight: 700;
        }
        
        .btn-outline-gold:hover {
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
        }
        
        .btn-red {
            background: linear-gradient(135deg, var(--accent-red) 0%, #B71C1C 50%, var(--accent-red) 100%);
            color: var(--text-white);
            box-shadow: 0 4px 16px rgba(211, 47, 47, 0.3);
            font-weight: 800;
        }
        
        .btn-red:hover {
            box-shadow: 0 8px 28px rgba(211, 47, 47, 0.45);
            color: var(--text-white);
            transform: translateY(-2px);
        }
        
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            background: transparent;
            border: 1px solid var(--border-mint);
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: border-color var(--transition-base);
        }
        
        .nav-toggle:hover {
            border-color: var(--border-gold-strong);
        }
        
        .nav-toggle span {
            width: 22px;
            height: 2px;
            background: var(--text-mint);
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        
        .nav-toggle span:nth-child(2) {
            width: 16px;
        }
        
        @media (max-width: 1023px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-primary);
                border-bottom: 2px solid var(--border-gold);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: var(--spacing-md);
                box-shadow: var(--shadow-lg);
                z-index: 99;
            }
            
            .nav-menu.is-open {
                display: flex;
            }
            
            .nav-link {
                padding: 14px 16px;
                border-radius: var(--radius-sm);
                font-size: 1rem;
                justify-content: flex-start;
            }
            
            .nav-toggle {
                display: flex;
            }
            
            .nav-actions {
                gap: 6px;
            }
            
            .btn-text {
                padding: 8px 12px;
                font-size: 0.8rem;
            }
            
            .btn-solid {
                padding: 8px 12px;
                font-size: 0.8rem;
            }
        }
        
        @media (max-width: 520px) {
            .logo-link {
                font-size: 1rem;
            }
            
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.8rem;
            }
            
            .btn-text {
                padding: 6px 10px;
                font-size: 0.75rem;
            }
            
            .btn-solid {
                padding: 6px 10px;
                font-size: 0.75rem;
            }
            
            .btn-text i {
                display: none;
            }
        }
        
        /* ==================== BREADCRUMB ==================== */
        .breadcrumb-wrap {
            background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
            border-bottom: 1px solid var(--border-mint);
            padding: var(--spacing-md) 0;
        }
        
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        
        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        
        .breadcrumb a:hover {
            color: var(--accent-gold);
        }
        
        .breadcrumb .sep {
            color: var(--border-gold-strong);
            font-size: 0.7rem;
        }
        
        .breadcrumb .current {
            color: var(--accent-gold);
            font-weight: 600;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 300px;
        }
        
        /* ==================== ARTICLE LAYOUT ==================== */
        .article-main {
            flex: 1;
            padding: var(--spacing-2xl) 0 var(--spacing-3xl);
            background: var(--bg-primary);
        }
        
        .article-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: var(--spacing-xl);
        }
        
        @media (min-width: 1024px) {
            .article-grid {
                grid-template-columns: minmax(0, 1fr) 340px;
                gap: var(--spacing-2xl);
                align-items: start;
            }
        }
        
        /* Article content area */
        .article-content {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-mint);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            box-shadow: var(--shadow-md);
            min-width: 0;
        }
        
        @media (min-width: 768px) {
            .article-content {
                padding: var(--spacing-2xl);
            }
        }
        
        .article-content .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: var(--spacing-lg);
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        
        .article-content .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        
        .article-content .article-meta .meta-item i {
            color: var(--accent-gold);
            font-size: 0.8rem;
        }
        
        .article-content .article-meta .category-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-full);
            color: var(--accent-gold);
            font-weight: 600;
            font-size: 0.8rem;
        }
        
        .article-content h1 {
            font-size: 2rem;
            font-weight: 900;
            color: var(--text-white);
            line-height: 1.25;
            margin-bottom: var(--spacing-lg);
            letter-spacing: -0.02em;
        }
        
        @media (min-width: 768px) {
            .article-content h1 {
                font-size: 2.5rem;
            }
        }
        
        .article-featured-img {
            margin-bottom: var(--spacing-xl);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-gold);
            box-shadow: var(--shadow-md);
        }
        
        .article-featured-img img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        
        .article-featured-img img:hover {
            transform: scale(1.02);
        }
        
        /* CMS body content styling */
        .article-body {
            font-size: 1.05rem;
            line-height: 1.75;
            color: var(--text-mint);
            word-wrap: break-word;
            overflow-wrap: break-word;
        }
        
        .article-body h2 {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-white);
            margin: var(--spacing-2xl) 0 var(--spacing-md);
            line-height: 1.3;
            letter-spacing: -0.01em;
            padding-bottom: var(--spacing-sm);
            border-bottom: 2px solid var(--border-gold);
        }
        
        .article-body h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-white);
            margin: var(--spacing-xl) 0 var(--spacing-sm);
            line-height: 1.4;
        }
        
        .article-body h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin: var(--spacing-lg) 0 var(--spacing-xs);
        }
        
        .article-body p {
            margin-bottom: var(--spacing-md);
        }
        
        .article-body ul,
        .article-body ol {
            margin: var(--spacing-md) 0 var(--spacing-lg);
            padding-left: var(--spacing-xl);
        }
        
        .article-body ul li,
        .article-body ol li {
            margin-bottom: var(--spacing-sm);
            position: relative;
        }
        
        .article-body ul li::marker {
            color: var(--accent-gold);
            font-weight: 700;
        }
        
        .article-body ol li::marker {
            color: var(--accent-gold);
            font-weight: 700;
        }
        
        .article-body blockquote {
            margin: var(--spacing-xl) 0;
            padding: var(--spacing-lg);
            background: rgba(255, 215, 0, 0.05);
            border-left: 4px solid var(--accent-gold);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-white);
        }
        
        .article-body blockquote p:last-child {
            margin-bottom: 0;
        }
        
        .article-body a {
            color: var(--accent-gold);
            text-decoration: underline;
            text-underline-offset: 3px;
            transition: color var(--transition-base);
        }
        
        .article-body a:hover {
            color: var(--text-white);
        }
        
        .article-body img {
            border-radius: var(--radius-md);
            margin: var(--spacing-lg) 0;
            border: 1px solid var(--border-mint);
        }
        
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: var(--spacing-lg) 0;
            font-size: 0.95rem;
        }
        
        .article-body table th {
            background: var(--bg-secondary);
            color: var(--text-white);
            padding: 12px 16px;
            text-align: left;
            font-weight: 700;
            border-bottom: 2px solid var(--border-gold);
        }
        
        .article-body table td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border-mint);
            color: var(--text-mint);
        }
        
        .article-body table tr:hover td {
            background: rgba(255, 215, 0, 0.03);
        }
        
        .article-body code {
            font-family: var(--font-mono);
            background: rgba(255, 255, 255, 0.06);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--accent-gold);
        }
        
        .article-body pre {
            background: var(--bg-secondary);
            border: 1px solid var(--border-mint);
            border-radius: var(--radius-sm);
            padding: var(--spacing-lg);
            overflow-x: auto;
            margin: var(--spacing-lg) 0;
        }
        
        .article-body pre code {
            background: none;
            padding: 0;
            color: var(--text-mint);
        }
        
        .article-body hr {
            border: none;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--border-gold-strong), transparent);
            margin: var(--spacing-2xl) 0;
        }
        
        /* No article state */
        .no-article {
            text-align: center;
            padding: var(--spacing-3xl) var(--spacing-lg);
        }
        
        .no-article .no-article-icon {
            font-size: 3rem;
            color: var(--accent-gold);
            margin-bottom: var(--spacing-lg);
        }
        
        .no-article h2 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: var(--spacing-md);
        }
        
        .no-article p {
            color: var(--text-muted);
            margin-bottom: var(--spacing-lg);
            font-size: 1rem;
        }
        
        /* ==================== SIDEBAR ==================== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-lg);
            position: sticky;
            top: calc(var(--header-height) + 24px);
        }
        
        @media (max-width: 1023px) {
            .article-sidebar {
                position: static;
            }
        }
        
        .sidebar-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-mint);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-md);
        }
        
        .sidebar-card.highlight {
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.08) 0%, rgba(255, 215, 0, 0.02) 100%);
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold);
        }
        
        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: var(--spacing-md);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.01em;
        }
        
        .sidebar-card h3 i {
            color: var(--accent-gold);
        }
        
        .sidebar-download-btn {
            display: flex;
            align-items: center;
            gap: 12px;
            width: 100%;
            padding: 14px 18px;
            text-align: left;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-mint);
            border-radius: var(--radius-md);
            margin-bottom: var(--spacing-sm);
            transition: all var(--transition-base);
            cursor: pointer;
            color: var(--text-mint);
            font-weight: 600;
            font-size: 0.9rem;
        }
        
        .sidebar-download-btn:hover {
            border-color: var(--border-gold-strong);
            background: rgba(255, 215, 0, 0.06);
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold);
            color: var(--text-white);
        }
        
        .sidebar-download-btn i {
            font-size: 1.3rem;
            color: var(--accent-gold);
            flex-shrink: 0;
        }
        
        .sidebar-download-btn .btn-info {
            flex: 1;
        }
        
        .sidebar-download-btn .btn-info .btn-title {
            display: block;
            font-weight: 700;
            color: var(--text-white);
            font-size: 0.95rem;
        }
        
        .sidebar-download-btn .btn-info .btn-sub {
            display: block;
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 2px;
        }
        
        .sidebar-bonus {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            background: rgba(255, 215, 0, 0.1);
            border: 1px dashed var(--border-gold-strong);
            border-radius: var(--radius-md);
            margin-top: var(--spacing-sm);
        }
        
        .sidebar-bonus .bonus-icon {
            font-size: 1.5rem;
            color: var(--accent-gold);
            flex-shrink: 0;
        }
        
        .sidebar-bonus .bonus-text strong {
            display: block;
            color: var(--text-white);
            font-size: 0.95rem;
        }
        
        .sidebar-bonus .bonus-text span {
            color: var(--text-muted);
            font-size: 0.8rem;
        }
        
        .sidebar-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .sidebar-list li {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 0;
            border-bottom: 1px solid var(--border-mint);
            font-size: 0.9rem;
            color: var(--text-mint);
        }
        
        .sidebar-list li:last-child {
            border-bottom: none;
        }
        
        .sidebar-list li i {
            color: var(--accent-gold);
            font-size: 0.75rem;
            flex-shrink: 0;
        }
        
        /* ==================== DOWNLOAD SECTION ==================== */
        .download-section {
            background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
            border-top: 2px solid var(--border-gold);
            border-bottom: 2px solid var(--border-gold);
            padding: var(--spacing-3xl) 0;
            margin-top: var(--spacing-2xl);
        }
        
        .download-section .section-title {
            text-align: center;
            margin-bottom: var(--spacing-xl);
        }
        
        .download-section .section-title h2 {
            font-size: 2rem;
            font-weight: 900;
            color: var(--text-white);
            letter-spacing: -0.02em;
        }
        
        .download-section .section-title p {
            color: var(--text-muted);
            font-size: 1.05rem;
            margin-top: var(--spacing-sm);
        }
        
        .download-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: var(--spacing-lg);
        }
        
        @media (min-width: 768px) {
            .download-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .download-card {
            background: rgba(255, 255, 255, 0.04);
            border: 2px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            text-align: center;
            transition: all var(--transition-base);
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }
        
        .download-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-red), var(--accent-gold));
            opacity: 0.7;
        }
        
        .download-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-gold-hover);
            border-color: var(--accent-gold);
        }
        
        .download-card .dc-icon {
            font-size: 2.5rem;
            color: var(--accent-gold);
            margin-bottom: var(--spacing-md);
        }
        
        .download-card h3 {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: var(--spacing-sm);
        }
        
        .download-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: var(--spacing-lg);
        }
        
        /* ==================== FAQ SECTION ==================== */
        .faq-section {
            padding: var(--spacing-3xl) 0;
            background: var(--bg-primary);
        }
        
        .faq-section .section-header {
            margin-bottom: var(--spacing-xl);
        }
        
        .faq-section .section-header h2 {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--text-white);
            letter-spacing: -0.02em;
            margin-bottom: var(--spacing-sm);
        }
        
        .faq-section .section-header p {
            color: var(--text-muted);
            font-size: 1rem;
        }
        
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
            max-width: 800px;
        }
        
        .faq-item {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-mint);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition-base);
        }
        
        .faq-item:hover {
            border-color: var(--border-gold-strong);
        }
        
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            padding: var(--spacing-lg);
            cursor: pointer;
            font-weight: 700;
            color: var(--text-white);
            font-size: 1rem;
            list-style: none;
            transition: background var(--transition-base);
            user-select: none;
        }
        
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        
        .faq-item summary:hover {
            background: rgba(255, 215, 0, 0.04);
        }
        
        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 215, 0, 0.1);
            border-radius: 50%;
            color: var(--accent-gold);
            font-size: 0.85rem;
            transition: transform var(--transition-base);
        }
        
        .faq-item[open] summary .faq-icon {
            transform: rotate(180deg);
            background: var(--accent-gold);
            color: var(--bg-primary);
        }
        
        .faq-item .faq-answer {
            padding: 0 var(--spacing-lg) var(--spacing-lg);
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        
        .faq-item .faq-answer p {
            margin-bottom: var(--spacing-sm);
        }
        
        .faq-item .faq-answer p:last-child {
            margin-bottom: 0;
        }
        
        /* ==================== CTA SECTION ==================== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-secondary) 0%, #0D3822 50%, var(--bg-secondary) 100%);
            border-top: 2px solid var(--border-gold);
            padding: var(--spacing-3xl) 0;
            text-align: center;
        }
        
        .cta-section .cta-inner {
            max-width: 700px;
            margin: 0 auto;
        }
        
        .cta-section .cta-icon {
            font-size: 3rem;
            color: var(--accent-gold);
            margin-bottom: var(--spacing-md);
            animation: float 3s ease-in-out infinite;
        }
        
        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-10px); }
        }
        
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 900;
            color: var(--text-white);
            letter-spacing: -0.02em;
            margin-bottom: var(--spacing-md);
        }
        
        .cta-section p {
            color: var(--text-muted);
            font-size: 1.05rem;
            margin-bottom: var(--spacing-xl);
            line-height: 1.7;
        }
        
        .cta-section .cta-buttons {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: var(--spacing-md);
            flex-wrap: wrap;
        }
        
        /* ==================== FOOTER ==================== */
        .site-footer {
            background: #071C10;
            border-top: 2px solid var(--border-gold);
            padding: var(--spacing-2xl) 0 var(--spacing-lg);
            margin-top: 0;
        }
        
        .footer-top {
            display: grid;
            grid-template-columns: 1fr;
            gap: var(--spacing-xl);
            margin-bottom: var(--spacing-2xl);
        }
        
        @media (min-width: 768px) {
            .footer-top {
                grid-template-columns: 1.5fr 1fr 1fr 1fr;
                gap: var(--spacing-lg);
            }
        }
        
        .footer-brand h3 {
            font-size: 1.4rem;
            font-weight: 900;
            color: var(--text-white);
            margin-bottom: var(--spacing-md);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .footer-logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--accent-gold), #B8860B);
            color: var(--bg-primary);
            border-radius: 50%;
            font-size: 0.85rem;
        }
        
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: var(--spacing-lg);
        }
        
        .footer-social {
            display: flex;
            gap: var(--spacing-sm);
        }
        
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-mint);
            color: var(--text-mint);
            font-size: 0.95rem;
            transition: all var(--transition-base);
        }
        
        .footer-social a:hover {
            background: var(--accent-gold);
            color: var(--bg-primary);
            border-color: var(--accent-gold);
            transform: translateY(-3px);
            box-shadow: var(--shadow-gold);
        }
        
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: var(--spacing-md);
            letter-spacing: 0.01em;
        }
        
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .footer-col ul li {
            margin-bottom: var(--spacing-sm);
        }
        
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-base);
        }
        
        .footer-col ul li a i {
            font-size: 0.7rem;
            color: var(--accent-gold);
            transition: transform var(--transition-base);
        }
        
        .footer-col ul li a:hover {
            color: var(--accent-gold);
        }
        
        .footer-col ul li a:hover i {
            transform: translateX(3px);
        }
        
        .footer-payment {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
        }
        
        .footer-payment-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-mint);
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            color: var(--text-mint);
            font-weight: 600;
            transition: all var(--transition-base);
        }
        
        .footer-payment-badge:hover {
            border-color: var(--border-gold-strong);
            background: rgba(255, 215, 0, 0.06);
            color: var(--text-white);
        }
        
        .footer-payment-badge i {
            color: var(--accent-gold);
            font-size: 0.8rem;
        }
        
        .footer-bottom {
            border-top: 1px solid var(--border-mint);
            padding-top: var(--spacing-lg);
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
            align-items: center;
            text-align: center;
        }
        
        @media (min-width: 768px) {
            .footer-bottom {
                flex-direction: row;
                justify-content: space-between;
                text-align: left;
            }
        }
        
        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.8rem;
        }
        
        .footer-bottom .footer-compliance {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            flex-wrap: wrap;
            justify-content: center;
        }
        
        .footer-bottom .footer-compliance span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.75rem;
            color: var(--text-muted);
        }
        
        .footer-bottom .footer-compliance span i {
            color: var(--accent-gold);
            font-size: 0.7rem;
        }
        
        /* ==================== FAB ==================== */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #1A1A1A 0%, #0D0D0D 100%);
            border: 3px solid var(--accent-gold);
            color: var(--accent-gold);
            font-size: 1.4rem;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            opacity: 0.7;
            transition: all var(--transition-base);
            animation: fabFloat 3s ease-in-out infinite;
            position: relative;
        }
        
        .fab::after {
            content: '';
            position: absolute;
            top: -3px;
            right: -3px;
            width: 14px;
            height: 14px;
            background: var(--accent-red);
            border-radius: 50%;
            border: 2px solid var(--bg-primary);
            animation: blink 1.5s ease-in-out infinite;
        }
        
        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        
        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        
        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 32px rgba(255, 215, 0, 0.5);
            border-color: #FFE44D;
        }
        
        .fab:active {
            transform: scale(0.95);
            box-shadow: 0 2px 8px rgba(255, 215, 0, 0.3);
        }
        
        @media (max-width: 768px) {
            .fab {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                left: 8px;
                bottom: 80px;
            }
        }
        
        /* ==================== RESPONSIVE ==================== */
        @media (max-width: 520px) {
            :root {
                --header-height: 64px;
            }
            
            .article-content h1 {
                font-size: 1.6rem;
            }
            
            .article-body {
                font-size: 0.95rem;
            }
            
            .article-body h2 {
                font-size: 1.3rem;
            }
            
            .article-body h3 {
                font-size: 1.1rem;
            }
            
            .download-section .section-title h2 {
                font-size: 1.5rem;
            }
            
            .cta-section h2 {
                font-size: 1.5rem;
            }
            
            .faq-section .section-header h2 {
                font-size: 1.4rem;
            }
            
            .article-content {
                padding: var(--spacing-lg);
            }
            
            .sidebar-card {
                padding: var(--spacing-md);
            }
            
            .breadcrumb {
                font-size: 0.75rem;
            }
            
            .breadcrumb .current {
                max-width: 180px;
            }
        }