/* roulang page: index */
:root {
            --bg-primary: #0B1A30;
            --bg-secondary: #0F0C20;
            --bg-card: #132238;
            --accent-cyan: #00F0FF;
            --accent-lime: #CCFF00;
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --text-muted: #6B7C93;
            --border-neon: rgba(0, 240, 255, 0.25);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.35);
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.35);
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Be Vietnam Pro', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        button, input, textarea {
            font-family: inherit;
        }
        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(11, 26, 48, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-neon);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(11, 26, 48, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }
        .nav-logo {
            font-weight: 800;
            font-size: 1.25rem;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 360px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .nav-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent-cyan), #0090FF);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #fff;
            flex-shrink: 0;
            box-shadow: var(--shadow-neon);
        }
        .nav-logo span {
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--accent-cyan);
            display: block;
            letter-spacing: 0.05em;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }
        .nav-links a {
            padding: 10px 18px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-secondary);
            position: relative;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--text-primary);
            background: rgba(0, 240, 255, 0.08);
        }
        .nav-links a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.12);
            box-shadow: inset 0 0 0 1px var(--border-neon);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn-login {
            padding: 10px 20px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            background: transparent;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-login:hover {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
        }
        .btn-signup {
            padding: 10px 24px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 700;
            color: #0B1A30;
            background: linear-gradient(135deg, var(--accent-cyan), #00B4D8);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
        }
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0, 240, 255, 0.5);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 8px;
        }
        /* Hero */
        .hero-section {
            position: relative;
            padding: 160px 0 80px;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            min-height: 80vh;
            display: flex;
            align-items: center;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 26, 48, 0.95) 0%, rgba(15, 12, 32, 0.75) 50%, rgba(11, 26, 48, 0.9) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid var(--border-neon);
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-cyan);
            margin-bottom: 24px;
            letter-spacing: 0.05em;
        }
        .hero-badge i {
            font-size: 0.9rem;
        }
        .hero-content h1 {
            font-size: clamp(2rem, 5vw, 3.2rem);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.03em;
            margin-bottom: 24px;
            background: linear-gradient(135deg, #FFFFFF 40%, var(--accent-cyan) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-description {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 36px;
            max-width: 620px;
        }
        .hero-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            margin-bottom: 40px;
        }
        .btn-primary-hero {
            padding: 16px 36px;
            border-radius: 999px;
            font-size: 1rem;
            font-weight: 700;
            color: #0B1A30;
            background: linear-gradient(135deg, var(--accent-lime), #99FF00);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 0 30px rgba(204, 255, 0, 0.4);
        }
        .btn-primary-hero:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(204, 255, 0, 0.55);
        }
        .btn-outline-hero {
            padding: 16px 36px;
            border-radius: 999px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.25);
            cursor: pointer;
            transition: var(--transition);
            backdrop-filter: blur(10px);
        }
        .btn-outline-hero:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .hero-stat-value {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent-cyan);
            letter-spacing: -0.02em;
        }
        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }
        /* Section common */
        .section {
            padding: 80px 0;
        }
        .section-header {
            margin-bottom: 48px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-lime);
            margin-bottom: 12px;
        }
        .section-title {
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 720px;
        }
        /* Step flow */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-bottom: 48px;
        }
        .step-card {
            background: var(--bg-card);
            border: 1px solid rgba(0, 240, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .step-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-lime));
            opacity: 0;
            transition: var(--transition);
        }
        .step-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-neon);
            box-shadow: var(--shadow-card);
        }
        .step-card:hover::before {
            opacity: 1;
        }
        .step-number {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--accent-cyan);
            letter-spacing: 0.1em;
            text-transform: uppercase;
            margin-bottom: 16px;
            display: block;
        }
        .step-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }
        /* Interactive showcase */
        .showcase-section {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            padding: 48px;
            border: 1px solid rgba(0, 240, 255, 0.15);
            margin-bottom: 48px;
        }
        .showcase-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .showcase-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-neon);
            box-shadow: var(--shadow-neon);
            position: relative;
        }
        .showcase-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 16/10;
        }
        .showcase-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), transparent);
            pointer-events: none;
        }
        .showcase-info h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .showcase-info p {
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .showcase-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .showcase-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        .showcase-list i {
            color: var(--accent-lime);
            font-size: 1rem;
            margin-top: 4px;
            flex-shrink: 0;
        }
        /* Vertical scroll cards */
        .vertical-scroll-section {
            overflow-x: auto;
            padding-bottom: 16px;
            -webkit-overflow-scrolling: touch;
        }
        .vertical-scroll-grid {
            display: flex;
            gap: 20px;
            min-width: max-content;
        }
        .vertical-card {
            width: 280px;
            flex-shrink: 0;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid rgba(0, 240, 255, 0.12);
            transition: var(--transition);
            cursor: pointer;
        }
        .vertical-card:hover {
            transform: translateY(-6px);
            border-color: var(--border-neon);
            box-shadow: var(--shadow-neon);
        }
        .vertical-card-image {
            aspect-ratio: 3/4;
            overflow: hidden;
            position: relative;
        }
        .vertical-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .vertical-card:hover .vertical-card-image img {
            transform: scale(1.05);
        }
        .vertical-card-body {
            padding: 18px;
        }
        .vertical-card-body h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .vertical-card-body p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.55;
            margin-bottom: 12px;
        }
        .vertical-card-cta {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--accent-cyan);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        /* Testimonials */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid rgba(0, 240, 255, 0.1);
            transition: var(--transition);
        }
        .testimonial-card:hover {
            border-color: var(--border-neon);
            box-shadow: var(--shadow-card);
        }
        .testimonial-stars {
            color: var(--accent-lime);
            font-size: 0.9rem;
            margin-bottom: 16px;
            letter-spacing: 2px;
        }
        .testimonial-text {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 20px;
            font-style: italic;
        }
        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .testimonial-avatar {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: #0B1A30;
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .testimonial-name {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
        }
        .testimonial-role {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        /* News list */
        .news-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 32px;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .news-item {
            display: flex;
            gap: 18px;
            padding: 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid rgba(0, 240, 255, 0.1);
            transition: var(--transition);
        }
        .news-item:hover {
            border-color: var(--border-neon);
            transform: translateX(4px);
            box-shadow: var(--shadow-card);
        }
        .news-item-icon {
            width: 48px;
            height: 48px;
            flex-shrink: 0;
            background: rgba(0, 240, 255, 0.08);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.2rem;
        }
        .news-item-content {
            flex: 1;
        }
        .news-item-meta {
            display: flex;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .news-item-content h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .news-item-content p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .news-sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid rgba(0, 240, 255, 0.1);
        }
        .news-sidebar-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .sidebar-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .sidebar-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: var(--transition);
            cursor: pointer;
        }
        .sidebar-list li:hover {
            color: var(--accent-cyan);
        }
        .sidebar-list i {
            color: var(--accent-lime);
            font-size: 0.7rem;
        }
        /* Floating bar */
        .floating-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 90;
            background: rgba(11, 26, 48, 0.95);
            backdrop-filter: blur(20px);
            border-top: 1px solid var(--border-neon);
            padding: 12px 0;
            transform: translateY(100%);
            transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .floating-cta-bar.visible {
            transform: translateY(0);
        }
        .floating-cta-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .floating-cta-text {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
        }
        .floating-cta-text span {
            color: var(--accent-cyan);
        }
        .btn-floating-cta {
            padding: 12px 28px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 700;
            color: #0B1A30;
            background: linear-gradient(135deg, var(--accent-lime), #99FF00);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 0 20px rgba(204, 255, 0, 0.4);
        }
        .btn-floating-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(204, 255, 0, 0.55);
        }
        /* FAB */
        .fab-support {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 95;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(15, 12, 32, 0.85);
            backdrop-filter: blur(10px);
            border: 2px solid var(--accent-cyan);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.5);
            transition: var(--transition);
            opacity: 0.6;
            animation: fabBreath 3s ease-in-out infinite;
        }
        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 35px rgba(0, 240, 255, 0.8);
        }
        .fab-support i {
            font-size: 1.4rem;
            color: var(--accent-cyan);
        }
        .fab-support::after {
            content: '';
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: #FF007F;
            border-radius: 50%;
            border: 2px solid var(--bg-primary);
            animation: blink 2s ease-in-out infinite;
        }
        @keyframes fabBreath {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        /* Product screenshot stage */
        .product-stage {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            padding: 48px;
            border: 1px solid rgba(0, 240, 255, 0.15);
            position: relative;
            overflow: hidden;
        }
        .product-stage::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at 30% 30%, rgba(0, 240, 255, 0.05), transparent 60%);
            pointer-events: none;
        }
        .product-stage-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            position: relative;
            z-index: 1;
        }
        .product-screenshot {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-neon);
            transition: var(--transition);
            position: relative;
        }
        .product-screenshot:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-neon);
        }
        .product-screenshot img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
        }
        .product-screenshot-label {
            position: absolute;
            bottom: 12px;
            left: 12px;
            right: 12px;
            background: rgba(11, 26, 48, 0.85);
            backdrop-filter: blur(8px);
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-primary);
            text-align: center;
        }
        /* Security */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .security-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid rgba(0, 240, 255, 0.1);
            text-align: center;
            transition: var(--transition);
        }
        .security-card:hover {
            border-color: var(--border-neon);
            transform: translateY(-2px);
        }
        .security-icon {
            width: 52px;
            height: 52px;
            margin: 0 auto 16px;
            background: rgba(0, 240, 255, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-cyan);
        }
        .security-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .security-card p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
            border-radius: var(--radius-lg);
            padding: 60px 48px;
            border: 1px solid rgba(0, 240, 255, 0.2);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.08), transparent 60%);
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
            position: relative;
        }
        .cta-section p {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.7;
            max-width: 600px;
            margin: 0 auto 32px;
            position: relative;
        }
        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(0, 240, 255, 0.15);
            padding: 60px 0 32px;
            margin-top: 80px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.4;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .footer-column h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .footer-column ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-column ul a {
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .footer-column ul a:hover {
            color: var(--accent-cyan);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-copyright {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .footer-badges {
            display: flex;
            gap: 12px;
            align-items: center;
        }
        .footer-badge {
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(0, 240, 255, 0.08);
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 240, 255, 0.2);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .product-stage-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .security-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .showcase-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-wrapper {
                height: 64px;
            }
            .nav-logo {
                font-size: 0.95rem;
                max-width: 220px;
            }
            .nav-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .nav-links {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(11, 26, 48, 0.98);
                flex-direction: column;
                padding: 20px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border-neon);
                transform: translateY(-120%);
                transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                z-index: 99;
            }
            .nav-links.open {
                transform: translateY(0);
            }
            .nav-links a {
                width: 100%;
                padding: 14px 18px;
                font-size: 1rem;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-actions .btn-login {
                display: inline-block;
                padding: 8px 14px;
                font-size: 0.85rem;
            }
            .nav-actions .btn-signup {
                padding: 8px 16px;
                font-size: 0.85rem;
            }
            .hero-section {
                padding: 120px 0 60px;
                min-height: auto;
            }
            .hero-content h1 {
                font-size: 1.8rem;
            }
            .hero-stats {
                gap: 24px;
            }
            .hero-stat-value {
                font-size: 1.3rem;
            }
            .section {
                padding: 56px 0;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .product-stage-grid {
                grid-template-columns: 1fr;
            }
            .security-grid {
                grid-template-columns: 1fr;
            }
            .showcase-section,
            .product-stage,
            .cta-section {
                padding: 32px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .floating-cta-content {
                flex-direction: column;
                text-align: center;
            }
            .fab-support {
                left: 12px;
                bottom: 80px;
                width: 48px;
                height: 48px;
            }
            .fab-support i {
                font-size: 1.2rem;
            }
            .vertical-card {
                width: 240px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-description {
                font-size: 0.95rem;
            }
            .hero-cta-row {
                flex-direction: column;
                width: 100%;
            }
            .btn-primary-hero,
            .btn-outline-hero {
                width: 100%;
                text-align: center;
                padding: 14px 24px;
                font-size: 0.95rem;
            }
            .hero-stats {
                flex-direction: column;
                gap: 16px;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .step-card {
                padding: 24px 20px;
            }
            .testimonial-card {
                padding: 22px;
            }
            .news-item {
                flex-direction: column;
                gap: 12px;
            }
            .product-stage-grid {
                gap: 14px;
            }
            .vertical-card {
                width: 220px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0B0B0B;
            --bg-secondary: #121212;
            --bg-card: #1A1A1A;
            --accent-primary: #FFD700;
            --accent-secondary: #D32F2F;
            --accent-tertiary: #FF9F00;
            --text-primary: #FFFFFF;
            --text-secondary: #CCCCCC;
            --text-muted: #999999;
            --border-color: #2A2A2A;
            --border-gold: rgba(255, 215, 0, 0.4);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.15);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

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

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(11, 11, 11, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0;
            gap: 16px;
        }

        .logo {
            font-size: 1.25rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--accent-primary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 380px;
        }

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

        .logo a:hover {
            color: var(--accent-tertiary);
        }

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

        .nav-links li a {
            display: inline-block;
            padding: 10px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .nav-links li a:hover {
            color: var(--accent-primary);
            background-color: rgba(255, 215, 0, 0.08);
        }

        .nav-links li a.active {
            color: var(--accent-primary);
            background-color: rgba(255, 215, 0, 0.12);
            font-weight: 600;
        }

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

        .btn-login {
            padding: 10px 18px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-primary);
            background: transparent;
            border: none;
            border-radius: var(--radius-sm);
            transition: all 0.3s ease;
        }

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

        .btn-signup {
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 700;
            color: #0B0B0B;
            background: linear-gradient(135deg, #FFD700, #FF9F00);
            border: none;
            border-radius: var(--radius-sm);
            transition: all 0.3s ease;
            box-shadow: 0 2px 10px rgba(255, 215, 0, 0.3);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 215, 0, 0.45);
        }

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

        /* Article Content */
        .article-hero {
            background: linear-gradient(135deg, #1A1A1A 0%, #0B0B0B 60%, #1A0E0E 100%);
            border-bottom: 1px solid var(--border-color);
            padding: 48px 0 32px;
        }

        .article-hero .container {
            max-width: 900px;
        }

        .article-category-badge {
            display: inline-block;
            padding: 6px 16px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-primary);
            background-color: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-gold);
            border-radius: 50px;
            margin-bottom: 16px;
        }

        .article-title {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -1px;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            color: var(--text-muted);
            font-size: 0.9rem;
        }

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

        .article-featured-image {
            width: 100%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin: 32px 0;
            box-shadow: var(--shadow-gold);
            border: 1px solid var(--border-color);
        }

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

        .article-body {
            max-width: 800px;
            margin: 0 auto;
            padding: 40px 0 64px;
        }

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

        .article-content h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-top: 40px;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .article-content h3 {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-top: 32px;
            margin-bottom: 12px;
        }

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

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

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

        .article-content a {
            color: var(--accent-primary);
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        .article-content a:hover {
            color: var(--accent-tertiary);
        }

        .article-content blockquote {
            border-left: 4px solid var(--accent-primary);
            padding: 16px 24px;
            margin: 24px 0;
            background-color: rgba(255, 215, 0, 0.05);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-primary);
            font-size: 1.1rem;
        }

        .article-not-found {
            text-align: center;
            padding: 80px 24px;
        }

        .article-not-found h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

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

        .btn-back-home {
            display: inline-block;
            padding: 14px 32px;
            font-weight: 700;
            color: #0B0B0B;
            background: linear-gradient(135deg, #FFD700, #FF9F00);
            border-radius: var(--radius-sm);
            transition: all 0.3s ease;
        }

        .btn-back-home:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 215, 0, 0.4);
        }

        /* CTA Section */
        .article-cta {
            background: linear-gradient(135deg, #1A1A1A 0%, #0B0B0B 100%);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 48px 0;
        }

        .article-cta .container {
            max-width: 900px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .article-cta h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .article-cta p {
            color: var(--text-muted);
            font-size: 1rem;
        }

        .btn-cta-primary {
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 700;
            color: #0B0B0B;
            background: linear-gradient(135deg, #FFD700, #FF9F00);
            border: none;
            border-radius: var(--radius-sm);
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .btn-cta-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 215, 0, 0.45);
        }

        /* Footer */
        .site-footer {
            background-color: #080808;
            border-top: 1px solid var(--border-color);
            padding: 48px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }

        .footer-brand h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--accent-primary);
            margin-bottom: 12px;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }

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

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

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

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

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

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

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

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

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            font-size: 0.8rem;
            color: var(--text-secondary);
            background-color: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-color);
            border-radius: 50px;
        }

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

        /* FAB */
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 900;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #2A2A2A, #0B0B0B);
            border: 2px solid var(--accent-primary);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-primary);
            font-size: 1.4rem;
            cursor: pointer;
            opacity: 0.7;
            transition: all 0.3s ease;
            animation: floatY 3s ease-in-out infinite;
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 30px rgba(255, 215, 0, 0.5);
        }

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

        .fab-left::after {
            content: '';
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background-color: #D32F2F;
            border-radius: 50%;
            border: 2px solid #0B0B0B;
            animation: blink 1.5s ease-in-out infinite;
        }

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

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

        /* Responsive */
        @media (max-width: 1024px) {
            .article-title {
                font-size: 2rem;
            }

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

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

            .logo {
                font-size: 1rem;
                max-width: 200px;
            }

            .mobile-toggle {
                display: block;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                flex-direction: column;
                background-color: #0B0B0B;
                border-bottom: 1px solid var(--border-color);
                padding: 16px;
                gap: 4px;
            }

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

            .nav-links li a {
                display: block;
                padding: 12px 16px;
                width: 100%;
            }

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

            .btn-login {
                padding: 8px 14px;
                font-size: 0.85rem;
            }

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

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

            .article-body {
                padding: 24px 0 48px;
            }

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

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

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

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

        @media (max-width: 520px) {
            .logo {
                font-size: 0.9rem;
                max-width: 160px;
            }

            .article-title {
                font-size: 1.4rem;
            }

            .article-meta {
                font-size: 0.8rem;
                gap: 8px;
            }

            .btn-cta-primary {
                width: 100%;
                text-align: center;
            }
        }

/* roulang page: category1 */
:root {
            --primary-bg: #121212;
            --secondary-bg: #1C1C1E;
            --accent-gold: #C5A059;
            --accent-amber: #FFBF00;
            --text-warm: #F5F5F7;
            --text-muted: #D4AC0D;
            --text-soft: #A8A29E;
            --border-gold: #C5A059;
            --border-soft: #2E2E32;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-gold: 0 4px 20px rgba(197,160,89,0.25);
            --shadow-soft: 0 8px 30px rgba(0,0,0,0.4);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        body {
            font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--primary-bg);
            color: var(--text-warm);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        button, input, textarea {
            font-family: inherit;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(18,18,18,0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-soft);
        }
        
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 16px;
        }
        
        .nav-brand {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--accent-gold);
            letter-spacing: -0.02em;
            line-height: 1.3;
            max-width: 260px;
        }
        
        .nav-brand span {
            display: block;
            font-size: 0.7rem;
            font-weight: 500;
            color: var(--text-soft);
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }
        
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            flex-wrap: wrap;
        }
        
        .nav-links a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-soft);
            border-radius: 50px;
            transition: var(--transition);
            white-space: nowrap;
        }
        
        .nav-links a:hover,
        .nav-links a:focus {
            color: var(--accent-gold);
            background: rgba(197,160,89,0.1);
        }
        
        .nav-links a.active {
            color: var(--accent-amber);
            background: rgba(255,191,0,0.12);
            box-shadow: inset 0 0 0 1px rgba(255,191,0,0.3);
        }
        
        .nav-auth {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        
        .btn-login {
            padding: 8px 16px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-warm);
            background: transparent;
            border: 1px solid var(--border-soft);
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .btn-login:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
        }
        
        .btn-signup {
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 700;
            color: #121212;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            border: none;
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: var(--shadow-gold);
        }
        
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(197,160,89,0.45);
        }
        
        .mobile-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-soft);
            color: var(--text-warm);
            font-size: 1.2rem;
            padding: 8px 12px;
            border-radius: 8px;
            cursor: pointer;
        }
        
        /* Hero Section */
        .hero-section {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(180deg, #1C1C1E 0%, #121212 100%);
            overflow: hidden;
        }
        
        .hero-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(197,160,89,0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        
        .hero-content {
            position: relative;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        
        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255,191,0,0.12);
            border: 1px solid rgba(255,191,0,0.3);
            color: var(--accent-amber);
            font-size: 0.8rem;
            font-weight: 700;
            border-radius: 50px;
            margin-bottom: 18px;
            letter-spacing: 0.06em;
            text-transform: uppercase;
        }
        
        .hero-title {
            font-size: 2.6rem;
            font-weight: 900;
            line-height: 1.2;
            color: var(--text-warm);
            margin-bottom: 20px;
            letter-spacing: -0.03em;
        }
        
        .hero-title em {
            color: var(--accent-gold);
            font-style: normal;
        }
        
        .hero-subtitle {
            font-size: 1.05rem;
            color: var(--text-soft);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 520px;
        }
        
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 28px;
            font-size: 0.95rem;
            font-weight: 700;
            color: #121212;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            border: none;
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: var(--shadow-gold);
        }
        
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 35px rgba(197,160,89,0.5);
        }
        
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 26px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-warm);
            background: transparent;
            border: 1px solid var(--border-soft);
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .btn-secondary:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
        }
        
        .hero-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-soft);
            border: 1px solid var(--border-soft);
            min-height: 320px;
            background: #1C1C1E;
        }
        
        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.85;
        }
        
        .hero-visual-overlay {
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(18,18,18,0.4);
        }
        
        .play-button {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background: rgba(197,160,89,0.9);
            border: 2px solid var(--accent-amber);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: #121212;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 0 30px rgba(197,160,89,0.5);
        }
        
        .play-button:hover {
            transform: scale(1.1);
            box-shadow: 0 0 45px rgba(255,191,0,0.7);
        }
        
        /* Steps Section */
        .steps-section {
            padding: 60px 0;
            background: var(--primary-bg);
        }
        
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-top: 40px;
        }
        
        .step-card {
            background: var(--secondary-bg);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 30px;
            transition: var(--transition);
            position: relative;
        }
        
        .step-card:hover {
            border-color: var(--accent-gold);
            transform: translateY(-4px);
            box-shadow: var(--shadow-soft);
        }
        
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(197,160,89,0.15);
            color: var(--accent-gold);
            font-weight: 800;
            font-size: 1rem;
            margin-bottom: 16px;
            border: 1px solid rgba(197,160,89,0.3);
        }
        
        .step-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-warm);
            margin-bottom: 10px;
        }
        
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-soft);
            line-height: 1.6;
        }
        
        /* Strategy Section */
        .strategy-section {
            padding: 60px 0;
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-soft);
            border-bottom: 1px solid var(--border-soft);
        }
        
        .strategy-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }
        
        .strategy-visual {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-soft);
        }
        
        .strategy-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .strategy-content h3 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-warm);
            margin-bottom: 16px;
        }
        
        .strategy-content p {
            font-size: 0.95rem;
            color: var(--text-soft);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        
        .strategy-list {
            list-style: none;
            padding: 0;
        }
        
        .strategy-list li {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-soft);
            font-size: 0.9rem;
            color: var(--text-soft);
        }
        
        .strategy-list li:last-child {
            border-bottom: none;
        }
        
        .strategy-list i {
            color: var(--accent-gold);
            margin-top: 4px;
            flex-shrink: 0;
        }
        
        /* Pain Points Section */
        .pain-section {
            padding: 60px 0;
            background: var(--primary-bg);
        }
        
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 36px;
        }
        
        .pain-card {
            background: var(--secondary-bg);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: var(--transition);
        }
        
        .pain-card:hover {
            border-color: var(--accent-gold);
        }
        
        .pain-card i {
            font-size: 1.6rem;
            color: var(--accent-gold);
            margin-bottom: 14px;
        }
        
        .pain-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-warm);
            margin-bottom: 8px;
        }
        
        .pain-card p {
            font-size: 0.85rem;
            color: var(--text-soft);
            line-height: 1.6;
        }
        
        /* Success Section */
        .success-section {
            padding: 60px 0;
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-soft);
            border-bottom: 1px solid var(--border-soft);
        }
        
        .success-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 40px;
            align-items: center;
        }
        
        .success-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        
        .stat-item {
            text-align: left;
        }
        
        .stat-number {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--accent-gold);
            line-height: 1;
            margin-bottom: 6px;
        }
        
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-soft);
        }
        
        .success-quote {
            background: var(--primary-bg);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 28px;
            border-left: 4px solid var(--accent-gold);
        }
        
        .success-quote blockquote {
            font-size: 1rem;
            color: var(--text-warm);
            line-height: 1.7;
            font-style: italic;
            margin-bottom: 14px;
        }
        
        .success-quote cite {
            font-size: 0.85rem;
            color: var(--accent-gold);
            font-style: normal;
            font-weight: 600;
        }
        
        /* FAQ Section */
        .faq-section {
            padding: 60px 0;
            background: var(--primary-bg);
        }
        
        .faq-list {
            max-width: 800px;
            margin-top: 36px;
        }
        
        .faq-item {
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--secondary-bg);
            transition: var(--transition);
        }
        
        .faq-item:hover {
            border-color: var(--accent-gold);
        }
        
        .faq-question {
            width: 100%;
            padding: 18px 24px;
            background: transparent;
            border: none;
            color: var(--text-warm);
            font-size: 0.95rem;
            font-weight: 700;
            text-align: left;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        
        .faq-question i {
            color: var(--accent-gold);
            transition: var(--transition);
        }
        
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.9rem;
            color: var(--text-soft);
            line-height: 1.7;
            display: none;
        }
        
        .faq-item.active .faq-answer {
            display: block;
        }
        
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        
        /* CTA Section */
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(135deg, #1C1C1E 0%, #2E2E32 100%);
            border-top: 1px solid var(--border-soft);
            text-align: center;
        }
        
        .cta-content {
            max-width: 650px;
            margin: 0 auto;
        }
        
        .cta-content h2 {
            font-size: 2rem;
            font-weight: 900;
            color: var(--text-warm);
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        
        .cta-content p {
            font-size: 1rem;
            color: var(--text-soft);
            margin-bottom: 28px;
            line-height: 1.7;
        }
        
        /* Footer */
        .site-footer {
            background: #0E0E0E;
            border-top: 1px solid var(--border-soft);
            padding: 50px 0 20px;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-brand h3 {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 14px;
            line-height: 1.4;
        }
        
        .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-soft);
            line-height: 1.7;
        }
        
        .footer-column h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-warm);
            margin-bottom: 14px;
        }
        
        .footer-column ul {
            list-style: none;
            padding: 0;
        }
        
        .footer-column li {
            margin-bottom: 10px;
        }
        
        .footer-column a {
            font-size: 0.85rem;
            color: var(--text-soft);
            transition: var(--transition);
        }
        
        .footer-column a:hover {
            color: var(--accent-gold);
        }
        
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid var(--border-soft);
        }
        
        .footer-copyright {
            font-size: 0.8rem;
            color: var(--text-soft);
        }
        
        .footer-badges {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        
        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--text-soft);
            background: var(--secondary-bg);
            border: 1px solid var(--border-soft);
            border-radius: 50px;
        }
        
        /* FAB */
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(18,18,18,0.85);
            backdrop-filter: blur(8px);
            border: 2px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-amber);
            font-size: 1.4rem;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(197,160,89,0.3);
            opacity: 0.7;
            animation: fabFloat 3s ease-in-out infinite;
        }
        
        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(197,160,89,0.6);
        }
        
        .fab-left:active {
            transform: scale(0.95) translateY(2px);
        }
        
        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        
        /* Section Headers */
        .section-header {
            margin-bottom: 30px;
        }
        
        .section-label {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--accent-gold);
            text-transform: uppercase;
            letter-spacing: 0.1em;
            margin-bottom: 8px;
        }
        
        .section-title {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--text-warm);
            letter-spacing: -0.02em;
            line-height: 1.25;
        }
        
        .section-desc {
            font-size: 0.95rem;
            color: var(--text-soft);
            line-height: 1.7;
            max-width: 650px;
            margin-top: 10px;
        }
        
        /* Responsive */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            
            .hero-title {
                font-size: 2.2rem;
            }
            
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .pain-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .strategy-grid {
                grid-template-columns: 1fr;
            }
            
            .success-grid {
                grid-template-columns: 1fr;
            }
            
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        
        @media (max-width: 768px) {
            .nav-wrapper {
                flex-wrap: wrap;
            }
            
            .nav-brand {
                max-width: 200px;
                font-size: 1rem;
            }
            
            .mobile-toggle {
                display: block;
            }
            
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 4px;
                padding-top: 12px;
            }
            
            .nav-links.open {
                display: flex;
            }
            
            .nav-links a {
                display: block;
                width: 100%;
                text-align: left;
            }
            
            .nav-auth {
                margin-left: auto;
            }
            
            .hero-title {
                font-size: 1.8rem;
            }
            
            .steps-grid {
                grid-template-columns: 1fr;
            }
            
            .pain-grid {
                grid-template-columns: 1fr;
            }
            
            .success-stats {
                grid-template-columns: 1fr;
            }
            
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            
            .section-title {
                font-size: 1.5rem;
            }
        }
        
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            
            .hero-section {
                padding: 50px 0 40px;
            }
            
            .hero-title {
                font-size: 1.5rem;
            }
            
            .hero-subtitle {
                font-size: 0.9rem;
            }
            
            .btn-primary, .btn-secondary {
                padding: 12px 20px;
                font-size: 0.85rem;
                width: 100%;
                justify-content: center;
            }
            
            .hero-actions {
                flex-direction: column;
            }
            
            .nav-auth {
                gap: 6px;
            }
            
            .btn-login, .btn-signup {
                padding: 6px 12px;
                font-size: 0.75rem;
            }
            
            .fab-left {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                left: 12px;
                bottom: 80px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #121212;
            --bg-secondary: #1C1C1E;
            --bg-tertiary: #242426;
            --accent-gold: #C5A059;
            --accent-amber: #FFBF00;
            --accent-bright: #FFD700;
            --text-primary: #F5F5F7;
            --text-secondary: #D4AC0D;
            --text-muted: #A6A6A6;
            --text-dark: #1C1C1E;
            --border-gold: rgba(197, 160, 89, 0.3);
            --border-light: rgba(255, 255, 255, 0.08);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);
            --shadow-gold: 0 4px 20px rgba(197, 160, 89, 0.25);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

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

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

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

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

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

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(18, 18, 18, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-gold);
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.4);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
            max-width: 320px;
        }

        .logo-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-bright), var(--accent-gold));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-dark);
            font-size: 20px;
            font-weight: 700;
            flex-shrink: 0;
            box-shadow: var(--shadow-gold);
        }

        .logo-text {
            font-size: 15px;
            font-weight: 700;
            letter-spacing: 0.3px;
            color: var(--accent-bright);
            line-height: 1.3;
        }

        .logo-text span {
            display: block;
            font-size: 11px;
            font-weight: 400;
            color: var(--text-muted);
            letter-spacing: 0.5px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
        }

        .nav-links a {
            padding: 10px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: var(--radius-sm);
            letter-spacing: 0.2px;
            white-space: nowrap;
        }

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

        .nav-links a.active {
            color: var(--accent-bright);
            background: rgba(197, 160, 89, 0.12);
            font-weight: 600;
        }

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

        .btn-login {
            padding: 9px 18px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-gold);
            background: transparent;
            border: 1px solid rgba(197, 160, 89, 0.4);
            border-radius: var(--radius-sm);
            letter-spacing: 0.3px;
        }

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

        .btn-signup {
            padding: 9px 22px;
            font-size: 14px;
            font-weight: 700;
            color: var(--text-dark);
            background: linear-gradient(135deg, var(--accent-bright), var(--accent-gold));
            border-radius: var(--radius-sm);
            letter-spacing: 0.3px;
            box-shadow: var(--shadow-gold);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(197, 160, 89, 0.4);
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            color: var(--accent-bright);
            font-size: 24px;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border-gold);
        }

        .mobile-toggle:hover {
            background: rgba(197, 160, 89, 0.1);
        }

        .hero-section {
            position: relative;
            padding: 70px 0 80px;
            background: linear-gradient(180deg, #1C1C1E 0%, #121212 40%, #0D0D0E 100%);
            border-bottom: 1px solid var(--border-gold);
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(197, 160, 89, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -15%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 191, 0, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: rgba(197, 160, 89, 0.1);
            border: 1px solid var(--border-gold);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            color: var(--accent-bright);
            letter-spacing: 0.5px;
            margin-bottom: 20px;
        }

        .hero-badge i {
            font-size: 14px;
        }

        .hero-content h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.5px;
            margin-bottom: 18px;
            color: var(--text-primary);
        }

        .hero-content h1 .highlight {
            background: linear-gradient(135deg, var(--accent-bright), var(--accent-amber));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .hero-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 520px;
        }

        .hero-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary {
            padding: 14px 30px;
            font-size: 15px;
            font-weight: 700;
            color: var(--text-dark);
            background: linear-gradient(135deg, var(--accent-bright), var(--accent-amber));
            border-radius: var(--radius-md);
            letter-spacing: 0.3px;
            box-shadow: var(--shadow-gold);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(197, 160, 89, 0.5);
        }

        .btn-secondary {
            padding: 14px 28px;
            font-size: 15px;
            font-weight: 600;
            color: var(--accent-gold);
            background: transparent;
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            letter-spacing: 0.3px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

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

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

        .hero-visual img {
            width: 100%;
            max-width: 480px;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-gold);
        }

        .countdown-bar {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 24px;
            background: rgba(28, 28, 30, 0.8);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            margin-top: 24px;
            flex-wrap: wrap;
            backdrop-filter: blur(10px);
        }

        .countdown-bar .label {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-bright);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .countdown-items {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .countdown-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            min-width: 44px;
            padding: 8px 12px;
            background: rgba(197, 160, 89, 0.08);
            border-radius: var(--radius-sm);
            border: 1px solid rgba(197, 160, 89, 0.2);
        }

        .countdown-item .number {
            font-size: 18px;
            font-weight: 700;
            color: var(--accent-bright);
            line-height: 1;
        }

        .countdown-item .unit {
            font-size: 10px;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-top: 4px;
        }

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

        .section-header {
            text-align: left;
            margin-bottom: 40px;
            max-width: 700px;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent-gold);
            letter-spacing: 1.5px;
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .steps-flow {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 24px;
            margin-bottom: 48px;
        }

        .step-card {
            padding: 28px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

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

        .step-card:hover {
            transform: translateY(-5px);
            border-color: var(--border-gold);
            box-shadow: var(--shadow-md);
        }

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

        .step-number {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-bright), var(--accent-gold));
            color: var(--text-dark);
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 16px;
            box-shadow: var(--shadow-gold);
        }

        .step-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

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

        .interactive-zone {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            padding: 40px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-xl);
            margin-bottom: 48px;
        }

        .interactive-zone .visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
        }

        .interactive-zone .content h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .interactive-zone .content p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }

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

        .interactive-zone .content ul li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-primary);
            line-height: 1.5;
        }

        .interactive-zone .content ul li i {
            color: var(--accent-bright);
            font-size: 16px;
            margin-top: 2px;
            flex-shrink: 0;
        }

        .pain-points {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 48px;
        }

        .pain-card {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 24px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            transition: var(--transition);
        }

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

        .pain-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(197, 160, 89, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-bright);
            font-size: 18px;
            flex-shrink: 0;
        }

        .pain-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .pain-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .success-stories {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 24px;
            margin-bottom: 48px;
        }

        .story-card {
            padding: 28px;
            background: linear-gradient(135deg, var(--bg-secondary), #1a1a1c);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            position: relative;
        }

        .story-card .badge {
            position: absolute;
            top: 20px;
            right: 20px;
            padding: 4px 10px;
            background: rgba(197, 160, 89, 0.15);
            border-radius: 50px;
            font-size: 11px;
            font-weight: 600;
            color: var(--accent-bright);
            letter-spacing: 0.5px;
        }

        .story-card h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            padding-right: 60px;
        }

        .story-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 14px;
        }

        .story-card .amount {
            font-size: 24px;
            font-weight: 800;
            color: var(--accent-bright);
        }

        .story-card .amount small {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-muted);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-bottom: 48px;
        }

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

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

        .faq-item details {
            cursor: pointer;
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            list-style: none;
            cursor: pointer;
            gap: 16px;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary i {
            color: var(--accent-gold);
            font-size: 14px;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item details[open] summary i {
            transform: rotate(180deg);
        }

        .faq-item .faq-content {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .cta-section {
            padding: 60px 0;
            background: linear-gradient(135deg, #1C1C1E 0%, #242426 100%);
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
        }

        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
        }

        .cta-text h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .cta-text p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .site-footer {
            background: #0D0D0E;
            border-top: 1px solid var(--border-gold);
            padding: 50px 0 30px;
        }

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

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--accent-bright);
            margin-bottom: 14px;
        }

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

        .footer-column h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

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

        .footer-column ul a {
            font-size: 13px;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .footer-column ul a:hover {
            color: var(--accent-bright);
            padding-left: 5px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
        }

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

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

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: rgba(197, 160, 89, 0.08);
            border: 1px solid var(--border-gold);
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-gold);
            letter-spacing: 0.3px;
        }

        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 900;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(18, 18, 18, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 2px solid var(--accent-bright);
            box-shadow: 0 0 20px rgba(255, 215, 0, 0.4), var(--shadow-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-bright);
            font-size: 22px;
            transition: var(--transition);
            animation: fabFloat 3s ease-in-out infinite;
            opacity: 0.75;
            cursor: pointer;
        }

        .fab-left:hover {
            transform: scale(1.1);
            opacity: 1;
            box-shadow: 0 0 32px rgba(255, 215, 0, 0.6), var(--shadow-lg);
        }

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

        .fab-left .notification-dot {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #D32F2F;
            border: 2px solid var(--bg-primary);
            animation: dotBlink 1.5s ease-in-out infinite;
        }

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

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

        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-visual img {
                max-width: 100%;
            }
            .steps-flow {
                grid-template-columns: 1fr 1fr;
            }
            .success-stories {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }
            .logo-text {
                font-size: 13px;
            }
            .logo-text span {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-primary);
                flex-direction: column;
                padding: 16px 20px;
                gap: 8px;
                border-bottom: 1px solid var(--border-gold);
                box-shadow: var(--shadow-lg);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                padding: 12px 16px;
                font-size: 15px;
            }
            .header-actions .btn-login {
                padding: 7px 12px;
                font-size: 12px;
            }
            .header-actions .btn-signup {
                padding: 7px 16px;
                font-size: 12px;
            }
            .hero-section {
                padding: 40px 0 50px;
            }
            .hero-content h1 {
                font-size: 30px;
            }
            .hero-subtitle {
                font-size: 14px;
            }
            .btn-primary, .btn-secondary {
                padding: 12px 20px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }
            .hero-buttons {
                flex-direction: column;
                width: 100%;
            }
            .steps-flow {
                grid-template-columns: 1fr;
            }
            .interactive-zone {
                grid-template-columns: 1fr;
                padding: 24px;
                gap: 24px;
            }
            .pain-points {
                grid-template-columns: 1fr;
            }
            .success-stories {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 26px;
            }
            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 14px;
            }
            .countdown-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .hero-content h1 {
                font-size: 26px;
            }
            .section-title {
                font-size: 22px;
            }
            .logo-icon {
                width: 38px;
                height: 38px;
                font-size: 16px;
            }
            .logo-text {
                font-size: 12px;
            }
            .header-actions .btn-login {
                padding: 6px 10px;
                font-size: 11px;
            }
            .header-actions .btn-signup {
                padding: 6px 12px;
                font-size: 11px;
            }
            .fab-left {
                width: 48px;
                height: 48px;
                font-size: 18px;
                left: 10px;
                bottom: 80px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-card: #0F3522;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #8BA89B;
            --border-gold: rgba(255, 215, 0, 0.4);
            --border-subtle: rgba(255, 255, 255, 0.08);
            --shadow-gold: 0 8px 24px rgba(255, 215, 0, 0.15);
            --shadow-soft: 0 4px 16px rgba(0, 0, 0, 0.25);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --font-body: 'Be Vietnam Pro', 'Segoe UI', 'Roboto', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== HEADER / NAVBAR ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 215, 0, 0.2);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
            transition: all 0.3s ease;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.1rem;
            line-height: 1.2;
            color: var(--text-white);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--accent-gold), #B8860B);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0A2E1C;
            font-size: 1.3rem;
            flex-shrink: 0;
            box-shadow: var(--shadow-gold);
        }

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

        .nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-mint);
            transition: all 0.3s ease;
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
            border-color: rgba(255, 215, 0, 0.3);
        }

        .nav-links a.active {
            background: var(--accent-gold);
            color: #0A2E1C;
            font-weight: 700;
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-gold);
        }

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

        .btn-login {
            padding: 8px 16px;
            background: transparent;
            color: var(--text-mint);
            font-weight: 600;
            font-size: 0.9rem;
            border-radius: 999px;
            cursor: pointer;
            transition: all 0.3s ease;
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .btn-login:hover {
            color: var(--accent-gold);
            border-color: rgba(255, 215, 0, 0.4);
        }

        .btn-signup {
            padding: 10px 20px;
            background: linear-gradient(135deg, var(--accent-gold), #FFA500);
            color: #0A2E1C;
            font-weight: 700;
            font-size: 0.9rem;
            border-radius: 999px;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 14px rgba(255, 215, 0, 0.4);
            white-space: nowrap;
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 215, 0, 0.55);
        }

        .btn-signup:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(255, 215, 0, 0.35);
        }

        /* ===== HERO ===== */
        .hero {
            padding: 140px 0 80px;
            position: relative;
            overflow: hidden;
            background: linear-gradient(135deg, #0A2E1C 0%, #123E25 50%, #0F3522 100%);
            min-height: 80vh;
            display: flex;
            align-items: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            z-index: 0;
        }

        .hero::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, rgba(10, 46, 28, 0.7) 0%, rgba(10, 46, 28, 0.9) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid rgba(255, 215, 0, 0.35);
            color: var(--accent-gold);
            padding: 8px 18px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.85rem;
            letter-spacing: 0.04em;
            margin-bottom: 24px;
        }

        .hero h1 {
            font-size: clamp(2.2rem, 5vw, 3.8rem);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
            color: var(--text-white);
            margin-bottom: 20px;
        }

        .hero h1 .highlight {
            color: var(--accent-gold);
            position: relative;
        }

        .hero-subtitle {
            font-size: clamp(1.05rem, 1.8vw, 1.25rem);
            color: var(--text-mint);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 680px;
        }

        .hero-benefits {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 32px;
        }

        .hero-benefit {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-mint);
        }

        .hero-benefit i {
            color: var(--accent-gold);
            font-size: 0.85rem;
        }

        .hero-cta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
            margin-bottom: 32px;
        }

        .btn-primary {
            padding: 14px 32px;
            background: linear-gradient(135deg, var(--accent-gold), #FFA500);
            color: #0A2E1C;
            font-weight: 700;
            font-size: 1rem;
            border-radius: 999px;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 6px 20px rgba(255, 215, 0, 0.45);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(255, 215, 0, 0.6);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 3px 10px rgba(255, 215, 0, 0.3);
        }

        .btn-secondary {
            padding: 14px 32px;
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-white);
            font-weight: 600;
            font-size: 1rem;
            border-radius: 999px;
            cursor: pointer;
            transition: all 0.3s ease;
            border: 1px solid rgba(255, 255, 255, 0.2);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: rgba(255, 255, 255, 0.35);
            transform: translateY(-2px);
        }

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 20px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .hero-trust span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .hero-trust i {
            color: var(--accent-gold);
        }

        /* ===== SECTION ===== */
        .section {
            padding: 80px 0;
            position: relative;
        }

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

        .section-header {
            margin-bottom: 48px;
            max-width: 680px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid rgba(255, 215, 0, 0.3);
            color: var(--accent-gold);
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            margin-bottom: 16px;
        }

        .section-header h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.015em;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .section-header p {
            font-size: 1.05rem;
            color: var(--text-mint);
            line-height: 1.7;
        }

        /* ===== STEP GUIDE ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 24px;
        }

        .step-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            position: relative;
            transition: all 0.3s ease;
        }

        .step-card:hover {
            transform: translateY(-6px);
            border-color: rgba(255, 215, 0, 0.5);
            box-shadow: var(--shadow-gold);
        }

        .step-number {
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, var(--accent-gold), #FFA500);
            color: #0A2E1C;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.3rem;
            margin-bottom: 20px;
            box-shadow: 0 4px 12px rgba(255, 215, 0, 0.35);
        }

        .step-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-white);
        }

        .step-card p {
            font-size: 0.95rem;
            color: var(--text-mint);
            line-height: 1.7;
        }

        /* ===== INTERACTIVE DEMO ===== */
        .demo-panel {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            background: rgba(0, 0, 0, 0.25);
            border: 1px solid rgba(255, 215, 0, 0.25);
            border-radius: var(--radius-xl);
            padding: 48px;
            position: relative;
            overflow: hidden;
        }

        .demo-panel::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            z-index: 0;
        }

        .demo-content, .demo-visual {
            position: relative;
            z-index: 1;
        }

        .demo-content h3 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text-white);
            letter-spacing: -0.01em;
        }

        .demo-content p {
            font-size: 1rem;
            color: var(--text-mint);
            line-height: 1.7;
            margin-bottom: 24px;
        }

        .demo-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .demo-tag {
            padding: 8px 16px;
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid rgba(255, 215, 0, 0.35);
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-gold);
        }

        .demo-visual img {
            border-radius: var(--radius-lg);
            border: 2px solid rgba(255, 215, 0, 0.4);
            box-shadow: var(--shadow-soft);
            width: 100%;
            object-fit: cover;
        }

        /* ===== COMMON BLOCKERS ===== */
        .blockers-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .blocker-item {
            display: flex;
            gap: 16px;
            padding: 20px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            transition: all 0.3s ease;
        }

        .blocker-item:hover {
            border-color: rgba(255, 215, 0, 0.3);
            background: rgba(255, 215, 0, 0.05);
        }

        .blocker-icon {
            width: 44px;
            height: 44px;
            flex-shrink: 0;
            background: rgba(211, 47, 47, 0.15);
            border: 1px solid rgba(211, 47, 47, 0.35);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FF6B6B;
            font-size: 1.1rem;
        }

        .blocker-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-white);
        }

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

        /* ===== SUCCESS STORIES ===== */
        .success-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .success-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: all 0.3s ease;
        }

        .success-card:hover {
            transform: translateY(-4px);
            border-color: rgba(255, 215, 0, 0.45);
            box-shadow: var(--shadow-gold);
        }

        .success-quote {
            font-size: 1rem;
            color: var(--text-mint);
            line-height: 1.7;
            margin-bottom: 20px;
            font-style: italic;
        }

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

        .success-avatar {
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--accent-gold), #B8860B);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0A2E1C;
            font-weight: 800;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .success-user-info h5 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
        }

        .success-user-info span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #0F3522 0%, #1A4D32 50%, #0A2E1C 100%);
            border: 1px solid rgba(255, 215, 0, 0.3);
            border-radius: var(--radius-xl);
            padding: 56px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
            margin: 80px auto;
            max-width: 1000px;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.08) 0%, transparent 60%);
            animation: rotate 20s linear infinite;
            z-index: 0;
        }

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

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

        .cta-content h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text-white);
            letter-spacing: -0.01em;
        }

        .cta-content p {
            font-size: 1.05rem;
            color: var(--text-mint);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .faq-item:hover {
            border-color: rgba(255, 215, 0, 0.3);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            background: transparent;
            color: var(--text-white);
            font-weight: 600;
            font-size: 1rem;
            text-align: left;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
        }

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

        .faq-question i {
            color: var(--accent-gold);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

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

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

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

        .faq-answer p {
            font-size: 0.95rem;
            color: var(--text-mint);
            line-height: 1.7;
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: #062315;
            border-top: 1px solid rgba(255, 215, 0, 0.2);
            padding: 60px 0 30px;
            margin-top: 40px;
        }

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

        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .footer-column h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

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

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

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

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

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

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

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-muted);
        }

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

        /* ===== FAB ===== */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            background: linear-gradient(135deg, #1A1A1A, #0A2E1C);
            border: 2px solid var(--accent-gold);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.4rem;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            opacity: 0.7;
            transition: all 0.3s ease;
            animation: float 3s ease-in-out infinite;
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 32px rgba(255, 215, 0, 0.5);
        }

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

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

        .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: #D32F2F;
            border-radius: 50%;
            border: 2px solid #0A2E1C;
            animation: blink 2s ease-in-out infinite;
        }

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

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .success-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .demo-panel {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
                flex-wrap: wrap;
                height: auto;
                padding: 12px 0;
            }
            .logo {
                font-size: 0.95rem;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }
            .nav-links {
                order: 3;
                width: 100%;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                padding-bottom: 8px;
                gap: 4px;
                flex-wrap: nowrap;
            }
            .nav-links a {
                padding: 6px 12px;
                font-size: 0.8rem;
                flex-shrink: 0;
            }
            .nav-cta {
                gap: 4px;
            }
            .btn-login {
                padding: 6px 12px;
                font-size: 0.8rem;
            }
            .btn-signup {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
            .hero {
                padding: 120px 0 60px;
                min-height: auto;
            }
            .hero h1 {
                font-size: clamp(1.8rem, 6vw, 2.6rem);
            }
            .hero-cta {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-primary, .btn-secondary {
                justify-content: center;
                width: 100%;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .blockers-list {
                grid-template-columns: 1fr;
            }
            .success-grid {
                grid-template-columns: 1fr;
            }
            .section {
                padding: 60px 0;
            }
            .demo-panel {
                padding: 32px 20px;
            }
            .cta-section {
                padding: 40px 24px;
                margin: 60px auto;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .fab {
                left: 12px;
                bottom: 80px;
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero {
                padding: 100px 0 48px;
            }
            .hero-benefit {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .hero-trust {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .step-card {
                padding: 24px 18px;
            }
            .demo-panel {
                padding: 24px 16px;
            }
            .cta-section {
                padding: 32px 18px;
            }
        }