/* roulang page: index */
:root {
            --bg-deep: #0A2E1C;
            --bg-forest: #123E25;
            --bg-card: #0d3522;
            --bg-card-hover: #144a30;
            --gold: #FFD700;
            --gold-dark: #c8a820;
            --gold-light: #ffe44d;
            --red: #D32F2F;
            --red-light: #ef5350;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #8ab8a8;
            --border-gold: #FFD700;
            --border-subtle: rgba(255, 215, 0, 0.25);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.18);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.45);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --font-body: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --nav-height: 68px;
        }

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

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

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

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

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

        ul {
            list-style: none;
        }

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

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

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 46, 28, 0.94);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            gap: 16px;
        }

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

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--gold), var(--gold-dark));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #0A2E1C;
            font-weight: 700;
            flex-shrink: 0;
            box-shadow: 0 2px 10px rgba(255, 215, 0, 0.3);
        }

        .logo-text {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-white);
            line-height: 1.25;
            letter-spacing: -0.2px;
        }

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

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

        .nav-links a {
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.93rem;
            color: var(--text-mint);
            white-space: nowrap;
            transition: all var(--transition);
            position: relative;
        }

        .nav-links a:hover {
            color: var(--gold);
            background: rgba(255, 215, 0, 0.06);
        }

        .nav-links a.active {
            color: var(--gold);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--gold);
            border-radius: 2px;
        }

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

        .btn-login {
            background: transparent;
            color: var(--text-mint);
            padding: 9px 18px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            border: 1px solid rgba(209, 242, 235, 0.3);
            white-space: nowrap;
        }

        .btn-login:hover {
            border-color: var(--gold);
            color: var(--gold);
            background: rgba(255, 215, 0, 0.06);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--gold), var(--gold-dark));
            color: #0A2E1C;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            white-space: nowrap;
            box-shadow: 0 2px 10px rgba(255, 215, 0, 0.25);
        }

        .btn-signup:hover {
            box-shadow: 0 4px 18px rgba(255, 215, 0, 0.4);
            transform: translateY(-1px);
        }

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

        .mobile-menu-toggle {
            display: none;
            background: none;
            color: var(--text-white);
            font-size: 1.5rem;
            padding: 4px 8px;
            border-radius: 6px;
        }

        .mobile-menu-toggle:hover {
            color: var(--gold);
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            padding: 140px 0 100px;
            background: linear-gradient(180deg, #062315 0%, var(--bg-deep) 30%, var(--bg-forest) 100%);
            overflow: hidden;
        }

        .hero-bg-pattern {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.28;
            z-index: 0;
        }

        .hero-bubbles {
            position: absolute;
            inset: 0;
            z-index: 0;
            pointer-events: none;
        }

        .hero-bubble {
            position: absolute;
            border-radius: 50%;
            background: radial-gradient(circle at 35% 35%, rgba(255, 215, 0, 0.15), transparent 70%);
            animation: floatUp 8s ease-in-out infinite;
        }

        .hero-bubble:nth-child(1) {
            width: 60px;
            height: 60px;
            left: 12%;
            bottom: -80px;
            animation-delay: 0s;
            animation-duration: 7s;
        }
        .hero-bubble:nth-child(2) {
            width: 40px;
            height: 40px;
            left: 28%;
            bottom: -100px;
            animation-delay: 2s;
            animation-duration: 9s;
        }
        .hero-bubble:nth-child(3) {
            width: 70px;
            height: 70px;
            left: 55%;
            bottom: -60px;
            animation-delay: 4s;
            animation-duration: 8s;
        }
        .hero-bubble:nth-child(4) {
            width: 35px;
            height: 35px;
            left: 72%;
            bottom: -90px;
            animation-delay: 1.5s;
            animation-duration: 6.5s;
        }
        .hero-bubble:nth-child(5) {
            width: 50px;
            height: 50px;
            left: 85%;
            bottom: -70px;
            animation-delay: 3s;
            animation-duration: 10s;
        }

        @keyframes floatUp {
            0% {
                transform: translateY(0) scale(1);
                opacity: 0.5;
            }
            50% {
                opacity: 0.9;
            }
            100% {
                transform: translateY(-110vh) scale(1.6);
                opacity: 0;
            }
        }

        .hero-inner {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid rgba(255, 215, 0, 0.3);
            border-radius: 50px;
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--gold);
            width: fit-content;
            letter-spacing: 0.3px;
        }

        .hero-badge i {
            font-size: 0.75rem;
            animation: pulseDot 2s ease-in-out infinite;
        }

        @keyframes pulseDot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.35;
            }
        }

        .hero-heading {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.18;
            letter-spacing: -0.5px;
            color: var(--text-white);
        }

        .hero-heading .gold-span {
            color: var(--gold);
            display: inline;
        }

        .hero-desc {
            font-size: 1.08rem;
            color: var(--text-mint);
            line-height: 1.65;
            max-width: 520px;
        }

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

        .btn-primary {
            background: linear-gradient(135deg, var(--gold), #e6b800);
            color: #0A2E1C;
            padding: 14px 30px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            box-shadow: 0 4px 18px rgba(255, 215, 0, 0.3);
            letter-spacing: 0.3px;
        }

        .btn-primary:hover {
            box-shadow: 0 6px 26px rgba(255, 215, 0, 0.48);
            transform: translateY(-2px);
        }

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

        .btn-outline-gold {
            background: transparent;
            color: var(--gold);
            padding: 14px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid var(--gold);
        }

        .btn-outline-gold:hover {
            background: rgba(255, 215, 0, 0.08);
            border-color: #ffe44d;
        }

        .hero-trust-strip {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-top: 6px;
        }

        .hero-trust-strip span {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .hero-trust-strip i {
            color: var(--gold);
            font-size: 0.7rem;
        }

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

        .hero-visual-card {
            background: rgba(18, 62, 37, 0.7);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-lg);
            backdrop-filter: blur(10px);
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .hero-visual-card img {
            border-radius: var(--radius-md);
            width: 100%;
            max-width: 380px;
            margin: 0 auto;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }

        .hero-visual-card .hero-stat-row {
            display: flex;
            gap: 20px;
            justify-content: center;
            margin-top: 18px;
            flex-wrap: wrap;
        }

        .hero-stat-item {
            text-align: center;
        }

        .hero-stat-item .stat-num {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--gold);
            display: block;
            line-height: 1;
        }

        .hero-stat-item .stat-label {
            font-size: 0.78rem;
            color: var(--text-muted);
            display: block;
            margin-top: 3px;
        }

        /* Section Base */
        .section {
            padding: 80px 0;
        }

        .section-header {
            margin-bottom: 44px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            color: var(--gold);
            margin-bottom: 8px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 10px;
            line-height: 1.25;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-mint);
            max-width: 600px;
            line-height: 1.55;
        }

        /* Countdown Section */
        .countdown-section {
            background: var(--bg-forest);
            padding: 48px 0;
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .countdown-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            flex-wrap: wrap;
        }

        .countdown-info {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .countdown-icon {
            width: 52px;
            height: 52px;
            background: rgba(211, 47, 47, 0.2);
            border: 2px solid var(--red);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--red-light);
            flex-shrink: 0;
        }

        .countdown-text h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-white);
        }

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

        .countdown-timer {
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .timer-block {
            background: rgba(0, 0, 0, 0.4);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            padding: 14px 18px;
            text-align: center;
            min-width: 64px;
        }

        .timer-block .timer-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--gold);
            display: block;
            line-height: 1;
            font-variant-numeric: tabular-nums;
        }

        .timer-block .timer-label {
            font-size: 0.7rem;
            color: var(--text-muted);
            display: block;
            margin-top: 3px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .timer-divider {
            font-size: 1.4rem;
            color: var(--gold);
            font-weight: 700;
        }

        /* Highlights Wall */
        .highlights-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

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

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

        .highlight-card .card-icon-wrap {
            width: 48px;
            height: 48px;
            background: rgba(255, 215, 0, 0.1);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 1.3rem;
            color: var(--gold);
        }

        .highlight-card h3 {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
        }

        .highlight-card p {
            font-size: 0.9rem;
            color: var(--text-mint);
            line-height: 1.55;
        }

        .highlight-card .card-tag {
            position: absolute;
            top: 14px;
            right: 14px;
            background: var(--red);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 50px;
            letter-spacing: 0.4px;
        }

        /* Comparison Section */
        .comparison-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            background: var(--bg-card);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
        }

        .comparison-table th,
        .comparison-table td {
            padding: 16px 20px;
            text-align: left;
            border-bottom: 1px solid rgba(255, 215, 0, 0.1);
            font-size: 0.93rem;
        }

        .comparison-table th {
            background: rgba(0, 0, 0, 0.3);
            color: var(--gold);
            font-weight: 700;
            font-size: 0.85rem;
            letter-spacing: 0.5px;
            text-transform: uppercase;
            white-space: nowrap;
        }

        .comparison-table td {
            color: var(--text-mint);
        }

        .comparison-table tr:last-child td {
            border-bottom: none;
        }

        .comparison-table .col-feature {
            font-weight: 600;
            color: var(--text-white);
            white-space: nowrap;
        }

        .comparison-table .check-icon {
            color: #4caf50;
            font-weight: 700;
        }

        .comparison-table .star-icon {
            color: var(--gold);
        }

        /* Content Calendar */
        .calendar-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .calendar-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            transition: all var(--transition);
        }

        .calendar-item:hover {
            border-color: var(--gold);
            background: var(--bg-card-hover);
        }

        .calendar-date-box {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
        }

        .calendar-date-box .cal-day {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--gold);
            line-height: 1;
        }

        .calendar-date-box .cal-month {
            font-size: 0.7rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .calendar-item .cal-info h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-white);
        }

        .calendar-item .cal-info p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        /* News Section */
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 32px;
            align-items: start;
        }

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

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

        .news-item:hover {
            border-color: var(--gold);
            box-shadow: var(--shadow-gold);
        }

        .news-item .news-index {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            background: rgba(255, 215, 0, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--gold);
            font-size: 0.9rem;
        }

        .news-item .news-content h4 {
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-white);
            line-height: 1.4;
            margin-bottom: 4px;
        }

        .news-item .news-content a:hover h4 {
            color: var(--gold);
        }

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

        .news-item .news-excerpt {
            font-size: 0.85rem;
            color: var(--text-mint);
            margin-top: 6px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-sidebar {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 24px;
            position: sticky;
            top: 90px;
        }

        .news-sidebar h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--gold);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border-subtle);
        }

        .news-sidebar ul li {
            padding: 9px 0;
            border-bottom: 1px solid rgba(255, 215, 0, 0.06);
        }

        .news-sidebar ul li a {
            font-size: 0.88rem;
            color: var(--text-mint);
            transition: color var(--transition);
            line-height: 1.4;
        }

        .news-sidebar ul li a:hover {
            color: var(--gold);
        }

        .news-sidebar ul li i {
            color: var(--gold);
            font-size: 0.65rem;
            margin-right: 6px;
        }

        /* Rewards Preview */
        .rewards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .reward-card {
            background: var(--bg-card);
            border: 2px solid transparent;
            border-radius: var(--radius-md);
            padding: 24px 18px;
            text-align: center;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

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

        .reward-card .reward-img {
            width: 70px;
            height: 70px;
            margin: 0 auto 14px;
            border-radius: 50%;
            overflow: hidden;
            border: 2px solid var(--border-subtle);
        }

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

        .reward-card h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 4px;
        }

        .reward-card p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .reward-card .reward-badge {
            display: inline-block;
            background: linear-gradient(135deg, var(--gold), var(--gold-dark));
            color: #0A2E1C;
            font-weight: 700;
            font-size: 0.72rem;
            padding: 4px 12px;
            border-radius: 50px;
            margin-top: 10px;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(180deg, var(--bg-forest) 0%, #0a2a19 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(255, 215, 0, 0.06) 0%, transparent 70%);
            z-index: 0;
        }

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

        .cta-inner h2 {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 14px;
        }

        .cta-inner p {
            font-size: 1rem;
            color: var(--text-mint);
            margin-bottom: 26px;
            line-height: 1.6;
        }

        .cta-inner .btn-primary {
            font-size: 1.1rem;
            padding: 16px 40px;
        }

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

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

        .faq-item summary {
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-white);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            user-select: none;
        }

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

        .faq-item summary i {
            transition: transform var(--transition);
            color: var(--gold);
            font-size: 0.8rem;
            flex-shrink: 0;
        }

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

        .faq-item[open] {
            border-color: var(--gold);
            box-shadow: var(--shadow-gold);
        }

        .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.93rem;
            color: var(--text-mint);
            line-height: 1.65;
        }

        /* Footer */
        .site-footer {
            background: #051a10;
            border-top: 1px solid var(--border-subtle);
            padding: 50px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 36px;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--gold);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }

        .footer-col p,
        .footer-col li {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .footer-col ul li {
            padding: 4px 0;
        }

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

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

        .footer-bottom {
            margin-top: 36px;
            padding-top: 22px;
            border-top: 1px solid rgba(255, 215, 0, 0.12);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-bottom .age-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(211, 47, 47, 0.15);
            border: 1px solid rgba(211, 47, 47, 0.4);
            padding: 6px 14px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.78rem;
            color: #ef5350;
        }

        /* FAB */
        .fab-float {
            position: fixed;
            left: 20px;
            bottom: 100px;
            z-index: 999;
            width: 54px;
            height: 54px;
            background: radial-gradient(circle at 40% 30%, #1a1a1a, #0a0a0a);
            border-radius: 50%;
            border: 3px solid var(--gold);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            opacity: 0.7;
            transition: all var(--transition);
            animation: fabBreath 3s ease-in-out infinite;
            font-size: 1.2rem;
            color: var(--gold);
            text-decoration: none;
        }

        .fab-float:hover {
            opacity: 1;
            transform: scale(1.12);
            box-shadow: 0 6px 28px rgba(255, 215, 0, 0.5);
            animation: none;
        }

        .fab-float:active {
            transform: scale(0.94);
        }

        .fab-float .fab-notify {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            background: #ef5350;
            border-radius: 50%;
            border: 2px solid #0A2E1C;
            animation: blinkDot 1.6s ease-in-out infinite;
        }

        @keyframes fabBreath {
            0%,
            100% {
                box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            }
            50% {
                box-shadow: 0 4px 32px rgba(255, 215, 0, 0.5);
            }
        }

        @keyframes blinkDot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.25;
            }
        }

        /* No results */
        .no-updates {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-muted);
            font-size: 0.95rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-visual {
                order: -1;
            }
            .hero-visual-card img {
                max-width: 280px;
            }
            .hero-heading {
                font-size: 2.2rem;
            }
            .highlights-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .rewards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .news-sidebar {
                position: static;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .countdown-inner {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(10, 46, 28, 0.98);
                flex-direction: column;
                padding: 16px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border-subtle);
                z-index: 999;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 12px 16px;
                font-size: 1rem;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .hero-section {
                padding: 110px 0 60px;
            }
            .hero-heading {
                font-size: 1.8rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .section {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .highlights-grid {
                grid-template-columns: 1fr;
            }
            .rewards-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .countdown-timer {
                gap: 6px;
            }
            .timer-block {
                padding: 10px 12px;
                min-width: 48px;
            }
            .timer-block .timer-num {
                font-size: 1.3rem;
            }
            .comparison-table-wrap {
                font-size: 0.8rem;
            }
            .calendar-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .cta-inner h2 {
                font-size: 1.6rem;
            }
            .fab-float {
                left: 12px;
                bottom: 80px;
                width: 46px;
                height: 46px;
                font-size: 1rem;
            }
            .nav-actions .btn-login {
                padding: 7px 12px;
                font-size: 0.8rem;
            }
            .nav-actions .btn-signup {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .logo-text {
                font-size: 0.88rem;
            }
        }

        @media (max-width: 520px) {
            .hero-heading {
                font-size: 1.5rem;
            }
            .hero-cta-group {
                flex-direction: column;
                width: 100%;
            }
            .hero-cta-group .btn-primary,
            .hero-cta-group .btn-outline-gold {
                width: 100%;
                text-align: center;
            }
            .hero-trust-strip {
                justify-content: center;
            }
            .rewards-grid {
                grid-template-columns: 1fr;
            }
            .timer-block {
                padding: 8px 10px;
                min-width: 42px;
            }
            .timer-block .timer-num {
                font-size: 1.1rem;
            }
            .timer-divider {
                font-size: 1rem;
            }
            .container {
                padding: 0 14px;
            }
            .header-inner {
                padding: 0 14px;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0F0C20;
            --bg-secondary: #0B1A30;
            --bg-tertiary: #101828;
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --accent-violet: #7B3FE4;
            --accent-hot-pink: #FF007F;
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --text-muted: #6B7280;
            --border-dark: #1E293B;
            --border-neon: linear-gradient(135deg, #CCFF00 0%, #00F0FF 100%);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.45);
            --shadow-neon-lime: 0 0 15px rgba(204, 255, 0, 0.35), 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-neon-cyan: 0 0 15px rgba(0, 240, 255, 0.35), 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-neon-pink: 0 0 15px rgba(255, 0, 127, 0.4), 0 4px 20px rgba(0, 0, 0, 0.4);
            --font-sans: 'Inter', 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
            --spacing-xs: 4px;
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 24px;
            --spacing-xl: 32px;
            --spacing-2xl: 48px;
            --spacing-3xl: 64px;
            --spacing-4xl: 80px;
            --max-width: 1200px;
            --header-height: 72px;
            --transition-fast: 0.2s ease;
            --transition-med: 0.35s ease;
            --transition-slow: 0.55s ease;
        }

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

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

        body {
            font-family: var(--font-sans);
            line-height: 1.6;
            color: var(--text-primary);
            background: var(--bg-primary);
            background-image: 
                radial-gradient(circle at 15% 20%, rgba(123, 63, 228, 0.12) 0%, transparent 45%),
                radial-gradient(circle at 85% 70%, rgba(0, 240, 255, 0.08) 0%, transparent 40%),
                radial-gradient(circle at 50% 50%, rgba(204, 255, 0, 0.03) 0%, transparent 55%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
            font-size: 16px;
            letter-spacing: 0.01em;
        }

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

        h1, h2, h3, h4, h5, h6 {
            line-height: 1.3;
            font-weight: 700;
            letter-spacing: -0.01em;
        }

        h1 {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 800;
            color: var(--text-primary);
        }

        h2 {
            font-size: clamp(1.4rem, 3vw, 2rem);
            font-weight: 700;
            color: var(--text-primary);
        }

        h3 {
            font-size: clamp(1.1rem, 2vw, 1.35rem);
            font-weight: 600;
            color: var(--text-primary);
        }

        h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
        }

        p {
            margin-bottom: 1rem;
            color: var(--text-secondary);
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }

        /* ============ HEADER & NAVIGATION ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(15, 12, 32, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(204, 255, 0, 0.12);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-lg);
            width: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: -0.02em;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--border-neon);
            color: #0F0C20;
            font-size: 1.05rem;
            flex-shrink: 0;
        }

        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.15;
        }

        .logo-text .logo-main {
            font-size: 1.02rem;
            font-weight: 800;
            color: var(--text-primary);
        }

        .logo-text .logo-sub {
            font-size: 0.62rem;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

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

        .nav-links a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: var(--spacing-sm) var(--spacing-md);
            border-radius: var(--radius-sm);
            position: relative;
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a:hover,
        .nav-links a:focus-visible {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.06);
            outline: none;
        }

        .nav-links a.active {
            color: var(--accent-lime);
            background: rgba(204, 255, 0, 0.08);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--accent-lime);
            border-radius: 2px;
            box-shadow: 0 0 10px rgba(204, 255, 0, 0.6);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: var(--spacing-sm);
            font-weight: 600;
            font-size: 0.88rem;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
            position: relative;
            overflow: hidden;
        }

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

        .btn-login {
            color: var(--text-primary);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18);
            padding: 9px 18px;
        }

        .btn-login:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.05);
        }

        .btn-signup {
            color: #0F0C20;
            background: var(--accent-lime);
            border: 1px solid var(--accent-lime);
            box-shadow: var(--shadow-neon-lime);
        }

        .btn-signup:hover {
            background: #E0FF33;
            border-color: #E0FF33;
            box-shadow: 0 0 25px rgba(204, 255, 0, 0.55), 0 6px 24px rgba(0, 0, 0, 0.45);
            transform: translateY(-1px);
        }

        .btn-signup:active {
            transform: translateY(1px);
            box-shadow: 0 0 12px rgba(204, 255, 0, 0.35);
        }

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

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

        .btn-outline {
            color: var(--text-primary);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .btn-outline:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.05);
        }

        .btn-lg {
            padding: 14px 30px;
            font-size: 1rem;
            border-radius: var(--radius-md);
        }

        .btn-sm {
            padding: 7px 14px;
            font-size: 0.8rem;
            border-radius: 6px;
        }

        .btn-primary {
            color: #0F0C20;
            background: var(--accent-lime);
            border: 1px solid var(--accent-lime);
            box-shadow: var(--shadow-neon-lime);
        }

        .btn-primary:hover {
            background: #E0FF33;
            box-shadow: 0 0 30px rgba(204, 255, 0, 0.6);
            transform: translateY(-2px);
        }

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

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 10px;
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            background: transparent;
            z-index: 1001;
        }

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

        .hamburger:hover span {
            background: var(--accent-cyan);
        }

        /* ============ ARTICLE HERO ============ */
        .article-hero {
            background: var(--bg-secondary);
            background-image: 
                radial-gradient(circle at 20% 30%, rgba(0, 240, 255, 0.12) 0%, transparent 50%),
                radial-gradient(circle at 80% 60%, rgba(204, 255, 0, 0.08) 0%, transparent 45%),
                radial-gradient(circle at 50% 80%, rgba(123, 63, 228, 0.1) 0%, transparent 35%);
            padding: var(--spacing-2xl) 0 var(--spacing-xl);
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
            position: relative;
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            pointer-events: none;
            z-index: 0;
        }

        .article-hero .container {
            position: relative;
            z-index: 1;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: var(--spacing-md);
            flex-wrap: wrap;
        }

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

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

        .breadcrumb .separator {
            color: var(--accent-cyan);
            opacity: 0.5;
        }

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

        .article-meta {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            flex-wrap: wrap;
            margin-top: var(--spacing-md);
        }

        .article-badge {
            display: inline-flex;
            align-items: center;
            gap: var(--spacing-xs);
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(0, 240, 255, 0.12);
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 240, 255, 0.25);
        }

        .article-date {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
        }

        .article-date i {
            color: var(--accent-cyan);
            font-size: 0.8rem;
        }

        /* ============ ARTICLE CONTENT ============ */
        .article-main {
            flex: 1;
            padding: var(--spacing-xl) 0 var(--spacing-2xl);
        }

        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr);
            gap: var(--spacing-xl);
        }

        .article-prose {
            background: rgba(11, 26, 48, 0.6);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            box-shadow: var(--shadow-sm);
            max-width: 800px;
            margin: 0 auto;
        }

        .article-prose h2 {
            margin-top: var(--spacing-xl);
            margin-bottom: var(--spacing-md);
            padding-bottom: var(--spacing-sm);
            border-bottom: 2px solid rgba(0, 240, 255, 0.2);
            position: relative;
        }

        .article-prose h2::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 60px;
            height: 2px;
            background: var(--accent-cyan);
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
        }

        .article-prose h3 {
            margin-top: var(--spacing-lg);
            margin-bottom: var(--spacing-sm);
        }

        .article-prose p {
            line-height: 1.7;
            color: var(--text-secondary);
            margin-bottom: var(--spacing-md);
        }

        .article-prose ul,
        .article-prose ol {
            margin: var(--spacing-md) 0;
            padding-left: var(--spacing-xl);
        }

        .article-prose ul li {
            list-style: none;
            position: relative;
            padding-left: var(--spacing-lg);
            margin-bottom: var(--spacing-sm);
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .article-prose ul li::before {
            content: '◆';
            position: absolute;
            left: 0;
            color: var(--accent-cyan);
            font-size: 0.7rem;
            top: 0.5rem;
        }

        .article-prose ol {
            counter-reset: item;
        }

        .article-prose ol li {
            counter-increment: item;
            position: relative;
            padding-left: var(--spacing-lg);
            margin-bottom: var(--spacing-sm);
            color: var(--text-secondary);
            line-height: 1.7;
            list-style: none;
        }

        .article-prose ol li::before {
            content: counter(item);
            position: absolute;
            left: 0;
            font-weight: 700;
            color: var(--accent-lime);
            font-size: 0.85rem;
            top: 0.15rem;
        }

        .article-prose blockquote {
            border-left: 3px solid var(--accent-cyan);
            background: rgba(0, 240, 255, 0.04);
            padding: var(--spacing-md) var(--spacing-lg);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: var(--spacing-lg) 0;
            color: var(--text-primary);
            font-style: italic;
        }

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

        .article-prose img {
            border-radius: var(--radius-md);
            margin: var(--spacing-md) 0;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-dark);
        }

        .article-prose a {
            color: var(--accent-cyan);
            font-weight: 500;
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-prose a:hover {
            color: var(--accent-lime);
        }

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

        .article-prose table {
            width: 100%;
            border-collapse: collapse;
            margin: var(--spacing-md) 0;
            font-size: 0.9rem;
        }

        .article-prose table th {
            background: rgba(0, 240, 255, 0.08);
            color: var(--accent-cyan);
            font-weight: 600;
            text-align: left;
            padding: var(--spacing-sm) var(--spacing-md);
            border: 1px solid var(--border-dark);
            border-bottom: 2px solid rgba(0, 240, 255, 0.3);
        }

        .article-prose table td {
            padding: var(--spacing-sm) var(--spacing-md);
            border: 1px solid var(--border-dark);
            color: var(--text-secondary);
        }

        .article-prose table tr:nth-child(even) td {
            background: rgba(255, 255, 255, 0.02);
        }

        .article-not-found {
            text-align: center;
            padding: var(--spacing-3xl) var(--spacing-xl);
            background: rgba(11, 26, 48, 0.6);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
        }

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

        .article-not-found h2 {
            margin-bottom: var(--spacing-sm);
        }

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

        /* ============ FAQ SECTION ============ */
        .faq-section {
            padding: var(--spacing-2xl) 0;
            background: var(--bg-secondary);
            border-top: 1px solid rgba(0, 240, 255, 0.08);
            border-bottom: 1px solid rgba(0, 240, 255, 0.08);
        }

        .section-header {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: var(--spacing-xl);
            margin-bottom: var(--spacing-xl);
            flex-wrap: wrap;
        }

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

        .section-header .section-title h2 {
            margin-bottom: var(--spacing-xs);
        }

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

        .faq-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: var(--spacing-lg);
        }

        .faq-item {
            background: rgba(15, 12, 32, 0.55);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.35);
            box-shadow: var(--shadow-sm);
        }

        .faq-item h3 {
            font-size: 1rem;
            color: var(--accent-cyan);
            margin-bottom: var(--spacing-sm);
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }

        .faq-item h3 i {
            font-size: 0.9rem;
            color: var(--accent-lime);
        }

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

        /* ============ CTA SECTION ============ */
        .cta-section {
            padding: var(--spacing-3xl) 0;
            background: var(--bg-primary);
        }

        .cta-box {
            background: var(--bg-secondary);
            border: 1px solid rgba(0, 240, 255, 0.2);
            border-radius: var(--radius-xl);
            padding: var(--spacing-2xl);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-xl);
            flex-wrap: wrap;
            box-shadow: var(--shadow-md);
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.1) 0%, transparent 60%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-content {
            flex: 1;
            min-width: 280px;
            z-index: 1;
        }

        .cta-content h2 {
            margin-bottom: var(--spacing-xs);
        }

        .cta-content p {
            color: var(--text-secondary);
            margin-bottom: 0;
            max-width: 560px;
        }

        .cta-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            flex-wrap: wrap;
            z-index: 1;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(204, 255, 0, 0.1);
            padding: var(--spacing-2xl) 0 var(--spacing-lg);
            margin-top: auto;
        }

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

        .footer-col h4 {
            font-size: 1rem;
            margin-bottom: var(--spacing-md);
            color: var(--accent-cyan);
            font-weight: 600;
        }

        .footer-col p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 0;
        }

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

        .footer-col ul li a {
            font-size: 0.88rem;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

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

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

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

        .age-badge {
            display: inline-flex;
            align-items: center;
            gap: var(--spacing-xs);
            padding: 4px 12px;
            border-radius: 30px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(255, 0, 127, 0.12);
            color: var(--accent-hot-pink);
            border: 1px solid rgba(255, 0, 127, 0.3);
        }

        /* ============ FAB ============ */
        .fab-container {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 999;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: var(--spacing-sm);
        }

        .fab-button {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            background: rgba(15, 12, 32, 0.75);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 2px solid transparent;
            background-clip: padding-box;
            border-radius: 40px;
            padding: 12px 20px;
            color: var(--accent-cyan);
            font-weight: 600;
            font-size: 0.85rem;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.35), 0 4px 16px rgba(0, 0, 0, 0.4);
            animation: fab-float 3s ease-in-out infinite;
            transition: all var(--transition-fast);
            position: relative;
            min-height: 48px;
            min-width: 48px;
            border-image: linear-gradient(135deg, #CCFF00, #00F0FF) 1;
        }

        .fab-button:hover {
            box-shadow: 0 0 35px rgba(0, 240, 255, 0.6), 0 6px 20px rgba(0, 0, 0, 0.5);
            transform: scale(1.05);
            color: var(--accent-lime);
            opacity: 1;
        }

        .fab-button:active {
            transform: scale(0.95);
            box-shadow: 0 0 12px rgba(255, 0, 127, 0.5);
            border-image: linear-gradient(135deg, #FF007F, #00F0FF) 1;
        }

        .fab-button .fab-icon {
            font-size: 1.2rem;
            animation: fab-icon-glow 2s ease-in-out infinite;
        }

        .fab-button .fab-text {
            white-space: nowrap;
        }

        .fab-notification {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent-hot-pink);
            border: 2px solid rgba(15, 12, 32, 0.8);
            animation: fab-blink 1.6s ease-in-out infinite;
        }

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

        @keyframes fab-icon-glow {
            0%, 100% { opacity: 0.7; }
            50% { opacity: 1; }
        }

        @keyframes fab-blink {
            0%, 100% { opacity: 1; box-shadow: 0 0 6px rgba(255, 0, 127, 0.7); }
            50% { opacity: 0.5; box-shadow: 0 0 12px rgba(255, 0, 127, 0.4); }
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-lg);
            }

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

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

        @media (max-width: 768px) {
            .header-inner {
                gap: var(--spacing-md);
            }

            .nav-links {
                display: none;
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(15, 12, 32, 0.97);
                backdrop-filter: blur(20px);
                flex-direction: column;
                align-items: stretch;
                padding: var(--spacing-md);
                gap: var(--spacing-xs);
                border-bottom: 1px solid rgba(204, 255, 0, 0.12);
                z-index: 999;
            }

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

            .nav-links a {
                padding: var(--spacing-md);
                font-size: 1rem;
                border-radius: var(--radius-sm);
            }

            .nav-links a.active::after {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .logo-text .logo-sub {
                display: none;
            }

            .logo-text .logo-main {
                font-size: 0.9rem;
            }

            .btn-login {
                padding: 8px 14px;
                font-size: 0.8rem;
            }

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

            .article-prose {
                padding: var(--spacing-lg);
                border-radius: var(--radius-md);
            }

            .cta-box {
                padding: var(--spacing-xl);
                flex-direction: column;
                text-align: left;
            }

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

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: var(--spacing-sm);
            }

            .fab-container {
                left: 0.75rem;
                bottom: 5rem;
            }

            .fab-button {
                padding: 10px 14px;
                font-size: 0.78rem;
            }

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

            .section-header {
                flex-direction: column;
                gap: var(--spacing-sm);
            }
        }

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

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

            .article-meta {
                gap: var(--spacing-sm);
            }

            .article-prose {
                padding: var(--spacing-md);
                border-radius: var(--radius-sm);
            }

            .article-prose h2 {
                font-size: 1.2rem;
            }

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

            .cta-actions .btn {
                width: 100%;
            }

            .btn-lg {
                padding: 12px 20px;
                font-size: 0.9rem;
            }

            .faq-item {
                padding: var(--spacing-md);
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }

            .logo-text .logo-main {
                font-size: 0.82rem;
            }
        }

/* roulang page: category1 */
:root {
            --deep-jade: #0A2E1C;
            --forest-green: #123E25;
            --emerald-mid: #1A4D35;
            --imperial-gold: #FFD700;
            --dark-gold: #C5A059;
            --lucky-red: #D32F2F;
            --crimson-dark: #8B0000;
            --white: #FFFFFF;
            --pale-mint: #D1F2EB;
            --text-muted: #A0B8AC;
            --text-soft: #C8DDD4;
            --card-bg: #0F3320;
            --card-border: rgba(255, 215, 0, 0.25);
            --card-hover-border: rgba(255, 215, 0, 0.6);
            --shadow-gold: 0 4px 24px rgba(255, 215, 0, 0.12);
            --shadow-gold-hover: 0 8px 40px rgba(255, 215, 0, 0.22);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --font-body: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--deep-jade);
            color: var(--white);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

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

        button:focus-visible,
        a:focus-visible,
        .btn:focus-visible {
            outline: 2px solid var(--imperial-gold);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        ul,
        ol {
            list-style: none;
            padding: 0;
        }

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

        @media (min-width: 1400px) {
            .container-custom {
                max-width: 1320px;
            }
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 215, 0, 0.18);
            transition: all var(--transition-smooth);
            padding: 0;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .logo-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--imperial-gold);
            letter-spacing: -0.3px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
            line-height: 1.25;
            max-width: 340px;
        }

        .logo-brand i {
            font-size: 1.5rem;
            color: var(--imperial-gold);
            flex-shrink: 0;
        }

        .logo-brand:hover {
            color: #FFE44D;
        }

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

        .nav-links a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 22px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--pale-mint);
            letter-spacing: -0.1px;
            white-space: nowrap;
            transition: all var(--transition-fast);
            position: relative;
        }

        .nav-links a:hover {
            color: var(--imperial-gold);
            background: rgba(255, 215, 0, 0.07);
        }

        .nav-links a.active {
            color: var(--imperial-gold);
            background: rgba(255, 215, 0, 0.12);
            font-weight: 600;
            box-shadow: 0 0 0 1px rgba(255, 215, 0, 0.3);
        }

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

        .btn-login {
            padding: 7px 18px;
            border-radius: 22px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--pale-mint);
            background: transparent;
            border: 1px solid rgba(255, 215, 0, 0.35);
            transition: all var(--transition-fast);
        }

        .btn-login:hover {
            color: var(--imperial-gold);
            border-color: var(--imperial-gold);
            background: rgba(255, 215, 0, 0.06);
        }

        .btn-signup {
            padding: 7px 20px;
            border-radius: 22px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--deep-jade);
            background: var(--imperial-gold);
            border: 2px solid var(--imperial-gold);
            transition: all var(--transition-fast);
            box-shadow: 0 2px 12px rgba(255, 215, 0, 0.25);
        }

        .btn-signup:hover {
            background: #FFE44D;
            border-color: #FFE44D;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.4);
            transform: translateY(-1px);
        }

        /* Mobile nav toggle */
        .mobile-nav-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--imperial-gold);
            font-size: 1.6rem;
            cursor: pointer;
            padding: 6px;
            border-radius: 6px;
            transition: color var(--transition-fast);
        }

        .mobile-nav-toggle:hover {
            color: #FFE44D;
        }

        @media (max-width: 992px) {
            .nav-links {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(10, 28, 18, 0.97);
                backdrop-filter: blur(22px);
                -webkit-backdrop-filter: blur(22px);
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
                padding: 16px 20px;
                border-bottom: 2px solid rgba(255, 215, 0, 0.3);
                max-height: 0;
                opacity: 0;
                overflow: hidden;
                pointer-events: none;
                transition: max-height 0.4s ease, opacity 0.35s ease, padding 0.35s ease;
                z-index: 999;
            }

            .nav-links.open {
                max-height: 320px;
                opacity: 1;
                pointer-events: all;
                padding: 16px 20px;
            }

            .nav-links a {
                padding: 11px 16px;
                border-radius: 10px;
                font-size: 0.95rem;
                text-align: left;
            }

            .mobile-nav-toggle {
                display: block;
            }

            .header-actions {
                gap: 6px;
            }

            .btn-login,
            .btn-signup {
                padding: 6px 13px;
                font-size: 0.8rem;
                border-radius: 18px;
            }

            .logo-brand {
                font-size: 0.9rem;
                max-width: 240px;
            }
        }

        @media (max-width: 520px) {
            .logo-brand {
                font-size: 0.78rem;
                max-width: 180px;
            }

            .btn-login,
            .btn-signup {
                padding: 5px 10px;
                font-size: 0.72rem;
                border-radius: 16px;
            }

            .header-inner {
                height: 56px;
            }

            .nav-links {
                top: 56px;
            }
        }

        /* ========== HERO ========== */
        .hero-category {
            position: relative;
            padding: 100px 0 80px;
            background: linear-gradient(180deg, #062315 0%, #0A2E1C 40%, #0F3A26 100%);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            text-align: center;
            overflow: hidden;
        }

        .hero-category::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 30%, rgba(255, 215, 0, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-category::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, var(--deep-jade), transparent);
            pointer-events: none;
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .hero-badge {
            display: inline-block;
            background: var(--lucky-red);
            color: var(--white);
            padding: 6px 18px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.3px;
            margin-bottom: 18px;
            animation: pulse-badge 2s ease-in-out infinite;
            box-shadow: 0 3px 16px rgba(211, 47, 47, 0.4);
        }

        @keyframes pulse-badge {
            0%,
            100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.04);
            }
        }

        .hero-category h1 {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--imperial-gold);
            letter-spacing: -0.5px;
            line-height: 1.25;
            margin-bottom: 18px;
            text-shadow: 0 2px 20px rgba(255, 215, 0, 0.3);
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--pale-mint);
            line-height: 1.6;
            margin-bottom: 30px;
            max-width: 620px;
            margin-left: auto;
            margin-right: auto;
        }

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

        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--deep-jade);
            background: var(--imperial-gold);
            box-shadow: 0 6px 28px rgba(255, 215, 0, 0.35);
            transition: all var(--transition-smooth);
            border: none;
        }

        .btn-hero-primary:hover {
            background: #FFE44D;
            box-shadow: 0 10px 36px rgba(255, 215, 0, 0.5);
            transform: translateY(-3px);
        }

        .btn-hero-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--imperial-gold);
            background: transparent;
            border: 2px solid rgba(255, 215, 0, 0.5);
            transition: all var(--transition-smooth);
        }

        .btn-hero-secondary:hover {
            border-color: var(--imperial-gold);
            background: rgba(255, 215, 0, 0.08);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.2);
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .hero-category {
                padding: 80px 0 60px;
            }
            .hero-category h1 {
                font-size: 1.8rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
            .btn-hero-primary,
            .btn-hero-secondary {
                padding: 11px 22px;
                font-size: 0.9rem;
                border-radius: 24px;
            }
        }

        @media (max-width: 520px) {
            .hero-category h1 {
                font-size: 1.4rem;
            }
            .hero-subtitle {
                font-size: 0.85rem;
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: center;
            }
        }

        /* ========== MAIN SECTIONS ========== */
        main {
            position: relative;
            z-index: 1;
        }

        .section-block {
            padding: 60px 0;
        }

        .section-block-alt {
            padding: 60px 0;
            background: var(--forest-green);
            position: relative;
        }

        .section-block-alt::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 215, 0, 0.2), transparent);
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            color: var(--imperial-gold);
            margin-bottom: 10px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--white);
            letter-spacing: -0.3px;
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-soft);
            line-height: 1.65;
            margin-bottom: 30px;
            max-width: 700px;
        }

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

        /* ========== PAIN POINTS (痛点) ========== */
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

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

        .pain-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--imperial-gold);
            margin-bottom: 16px;
            flex-shrink: 0;
        }

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

        .pain-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.55;
            margin: 0;
        }

        @media (max-width: 992px) {
            .pain-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 600px) {
            .pain-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== STEPS ========== */
        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 28px;
            max-width: 800px;
        }

        .step-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-md);
            padding: 22px 24px;
            transition: all var(--transition-smooth);
        }

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

        .step-number {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--imperial-gold), var(--dark-gold));
            color: var(--deep-jade);
            font-weight: 800;
            font-size: 1.15rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 3px 14px rgba(255, 215, 0, 0.3);
        }

        .step-body h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 5px;
        }

        .step-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.55;
            margin: 0;
        }

        @media (max-width: 600px) {
            .step-item {
                flex-direction: column;
                gap: 12px;
            }
        }

        /* ========== APP CARDS ========== */
        .app-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .app-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
            position: relative;
        }

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

        .app-card-img {
            position: relative;
            width: 100%;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #0A2618;
        }

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

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

        .app-card-tag {
            position: absolute;
            top: 12px;
            right: 12px;
            background: var(--lucky-red);
            color: var(--white);
            padding: 4px 12px;
            border-radius: 14px;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.4px;
            z-index: 2;
            box-shadow: 0 2px 10px rgba(211, 47, 47, 0.5);
        }

        .app-card-tag.gold-tag {
            background: var(--imperial-gold);
            color: var(--deep-jade);
            box-shadow: 0 2px 10px rgba(255, 215, 0, 0.5);
        }

        .app-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .app-card-body h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 6px;
        }

        .app-card-rating {
            display: flex;
            align-items: center;
            gap: 5px;
            font-size: 0.85rem;
            color: var(--imperial-gold);
            margin-bottom: 8px;
        }

        .app-card-rating span {
            color: var(--text-muted);
            font-size: 0.78rem;
        }

        .app-card-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 16px;
            flex: 1;
        }

        .btn-download-sm {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 20px;
            border-radius: 22px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--deep-jade);
            background: var(--imperial-gold);
            border: none;
            transition: all var(--transition-fast);
            align-self: flex-start;
            box-shadow: 0 2px 10px rgba(255, 215, 0, 0.2);
        }

        .btn-download-sm:hover {
            background: #FFE44D;
            box-shadow: 0 4px 18px rgba(255, 215, 0, 0.4);
            transform: translateY(-2px);
        }

        @media (max-width: 992px) {
            .app-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 600px) {
            .app-cards-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== COMPARISON TABLE ========== */
        .compare-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid var(--card-border);
            background: var(--card-bg);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }

        .compare-table th {
            background: rgba(255, 215, 0, 0.08);
            color: var(--imperial-gold);
            font-weight: 700;
            font-size: 0.9rem;
            padding: 14px 16px;
            text-align: left;
            border-bottom: 1px solid rgba(255, 215, 0, 0.25);
        }

        .compare-table td {
            padding: 12px 16px;
            font-size: 0.88rem;
            color: var(--text-soft);
            border-bottom: 1px solid rgba(255, 215, 0, 0.08);
        }

        .compare-table tr:last-child td {
            border-bottom: none;
        }

        .compare-table .check-icon {
            color: #4CAF50;
            font-weight: 700;
        }

        .compare-table .cross-icon {
            color: #E57373;
        }

        /* ========== TESTIMONIALS ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

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

        .testimonial-card::before {
            content: '\201C';
            position: absolute;
            top: 10px;
            left: 16px;
            font-size: 3rem;
            color: rgba(255, 215, 0, 0.15);
            font-family: serif;
            line-height: 1;
            pointer-events: none;
        }

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

        .testimonial-card p {
            font-size: 0.93rem;
            color: var(--text-soft);
            line-height: 1.6;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .testimonial-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--imperial-gold);
            font-weight: 700;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .testimonial-author strong {
            font-size: 0.88rem;
            color: var(--white);
        }

        .testimonial-author span {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

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

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

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

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            background: transparent;
            border: none;
            color: var(--white);
            font-size: 0.98rem;
            font-weight: 600;
            text-align: left;
            cursor: pointer;
            gap: 12px;
            transition: color var(--transition-fast);
        }

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

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

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

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

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 20px 16px;
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ========== CTA BANNER ========== */
        .cta-banner {
            background: linear-gradient(135deg, #0F3A26 0%, #0A2E1C 50%, #062315 100%);
            border: 1px solid rgba(255, 215, 0, 0.3);
            border-radius: var(--radius-lg);
            padding: 44px 36px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 60% 40%, rgba(255, 215, 0, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-banner h3 {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--imperial-gold);
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }

        .cta-banner p {
            font-size: 1rem;
            color: var(--pale-mint);
            margin-bottom: 22px;
            position: relative;
            z-index: 1;
        }

        .cta-banner .btn-hero-primary {
            position: relative;
            z-index: 1;
        }

        @media (max-width: 600px) {
            .cta-banner {
                padding: 30px 20px;
            }
            .cta-banner h3 {
                font-size: 1.3rem;
            }
        }

        /* ========== FAB ========== */
        .fab-float {
            position: fixed;
            left: 20px;
            bottom: 90px;
            z-index: 1050;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(145deg, #1C0A00, #0D0500);
            border: 2px solid var(--imperial-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            opacity: 0.7;
            transition: all var(--transition-smooth);
            animation: fab-float 3s ease-in-out infinite;
            text-decoration: none;
        }

        .fab-float i {
            font-size: 1.3rem;
            color: var(--imperial-gold);
            transition: transform 0.4s ease;
        }

        .fab-float:hover {
            opacity: 1;
            transform: scale(1.12);
            box-shadow: 0 6px 28px rgba(255, 215, 0, 0.5);
        }

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

        .fab-float:active {
            transform: scale(0.94);
            box-shadow: 0 2px 10px rgba(255, 215, 0, 0.25);
        }

        .fab-dot {
            position: absolute;
            top: 4px;
            right: 4px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--lucky-red);
            animation: dot-blink 2s ease-in-out infinite;
            box-shadow: 0 0 6px rgba(211, 47, 47, 0.7);
        }

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

        @keyframes dot-blink {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.25;
            }
        }

        @media (max-width: 768px) {
            .fab-float {
                width: 46px;
                height: 46px;
                left: 14px;
                bottom: 80px;
            }
            .fab-float i {
                font-size: 1.1rem;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #061C10;
            border-top: 2px solid rgba(255, 215, 0, 0.2);
            padding: 50px 0 24px;
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.6;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.3fr;
            gap: 30px;
            margin-bottom: 30px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--imperial-gold);
            margin-bottom: 14px;
            letter-spacing: -0.2px;
        }

        .footer-col p {
            color: var(--text-muted);
            margin: 0;
            font-size: 0.83rem;
            line-height: 1.55;
        }

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

        .footer-col ul li {
            margin-bottom: 7px;
        }

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

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 215, 0, 0.1);
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .age-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 4px 12px;
            border-radius: 14px;
            border: 1px solid rgba(255, 215, 0, 0.35);
            font-weight: 700;
            color: var(--imperial-gold);
            font-size: 0.78rem;
        }

        .footer-license {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 8px;
            text-align: center;
        }

        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 600px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ========== UTILITY ========== */
        .text-gold {
            color: var(--imperial-gold);
        }
        .text-mint {
            color: var(--pale-mint);
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mt-auto {
            margin-top: auto;
        }
        .highlight-box {
            background: rgba(255, 215, 0, 0.06);
            border-left: 3px solid var(--imperial-gold);
            padding: 14px 18px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-size: 0.9rem;
            color: var(--pale-mint);
            line-height: 1.55;
        }

/* roulang page: category2 */
/* ============ DESIGN SYSTEM :ROOT VARIABLES ============ */
        :root {
            /* Style H: Tropical Rainforest & Golden Sun */
            --bg-primary: #0B3C25;
            --bg-secondary: #062315;
            --bg-card: #0E4A2E;
            --bg-card-hover: #125C38;
            --bg-surface: #0A3320;
            --bg-dark: #041A0F;

            --accent-gold: #FFCC00;
            --accent-gold-dark: #E6B800;
            --accent-lime: #32CD32;
            --accent-lime-dark: #28A428;
            --accent-amber: #FFB800;

            --text-primary: #FFFDF0;
            --text-secondary: #C5E2D2;
            --text-muted: #8BB8A0;
            --text-on-dark: #E8F5EC;

            --border-light: rgba(197, 226, 210, 0.2);
            --border-gold: rgba(255, 204, 0, 0.35);
            --border-card: rgba(197, 226, 210, 0.15);

            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 50%;

            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.45);
            --shadow-gold: 0 4px 20px rgba(255, 204, 0, 0.2);
            --shadow-gold-hover: 0 8px 32px rgba(255, 204, 0, 0.35);

            --font-heading: 'Segoe UI', 'Tahoma', 'Arial', sans-serif;
            --font-body: 'Segoe UI', 'Tahoma', 'Arial', sans-serif;

            --nav-height: 68px;
            --container-max: 1140px;
            --section-gap: 72px;
            --section-gap-mobile: 48px;

            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

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

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

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

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            line-height: 1.25;
            font-weight: 700;
        }

        h1 {
            font-size: 2.6rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: 1.45rem;
        }
        h4 {
            font-size: 1.15rem;
        }

        p {
            margin-bottom: 0.8rem;
        }
        p:last-child {
            margin-bottom: 0;
        }

        /* ============ CONTAINER ============ */
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ============ HEADER & NAVIGATION ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(6, 35, 21, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-height);
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
        }

        .site-header.scrolled {
            background: rgba(4, 26, 15, 0.96);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
        }

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

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

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

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

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 9px 18px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.92rem;
            color: var(--text-secondary);
            transition: all var(--transition-smooth);
            position: relative;
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--accent-gold);
            background: rgba(255, 204, 0, 0.08);
        }

        .nav-links a.active {
            color: var(--accent-gold);
            background: rgba(255, 204, 0, 0.14);
            box-shadow: 0 0 0 1px var(--border-gold);
        }

        .mobile-menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            z-index: 1001;
            background: none;
            border: none;
        }

        .mobile-menu-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-smooth);
        }

        .mobile-menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .mobile-menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .mobile-menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ============ HERO SECTION ============ */
        .hero-section {
            position: relative;
            padding: calc(var(--nav-height) + 56px) 0 64px;
            background: linear-gradient(170deg, var(--bg-secondary) 0%, var(--bg-primary) 40%, #0B3C25 100%);
            overflow: hidden;
            min-height: 560px;
            display: flex;
            align-items: center;
        }

        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            pointer-events: none;
        }

        .hero-bg-pattern {
            position: absolute;
            inset: 0;
            background:
                radial-gradient(ellipse at 75% 30%, rgba(50, 205, 50, 0.06) 0%, transparent 55%),
                radial-gradient(ellipse at 25% 70%, rgba(255, 204, 0, 0.05) 0%, transparent 50%);
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 44px;
            align-items: center;
        }

        .hero-content {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 204, 0, 0.12);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            padding: 8px 16px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.85rem;
            width: fit-content;
        }

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

        .hero-content h1 {
            font-size: 2.8rem;
            color: var(--text-primary);
            line-height: 1.18;
            margin: 0;
        }

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

        .hero-content .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.6;
            max-width: 480px;
        }

        .hero-progress-group {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
        }

        .progress-ring-wrap {
            position: relative;
            width: 100px;
            height: 100px;
            flex-shrink: 0;
        }

        .progress-ring-wrap svg {
            transform: rotate(-90deg);
        }

        .progress-ring-bg {
            fill: none;
            stroke: rgba(197, 226, 210, 0.12);
            stroke-width: 8;
        }

        .progress-ring-fill {
            fill: none;
            stroke: var(--accent-gold);
            stroke-width: 8;
            stroke-linecap: round;
            transition: stroke-dashoffset 1.5s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .progress-ring-text {
            position: absolute;
            inset: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.5rem;
            color: var(--accent-gold);
        }

        .progress-ring-text small {
            font-size: 0.65rem;
            font-weight: 500;
            color: var(--text-muted);
            text-align: center;
            line-height: 1.2;
        }

        .progress-info {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .progress-info .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-lime);
            line-height: 1;
        }

        .progress-info .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.4;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition-smooth);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background: var(--accent-gold);
            color: var(--bg-dark);
            box-shadow: var(--shadow-gold);
        }

        .btn-primary:hover {
            background: var(--accent-gold-dark);
            box-shadow: var(--shadow-gold-hover);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }

        .btn-outline {
            background: transparent;
            border: 2px solid var(--border-gold);
            color: var(--accent-gold);
        }

        .btn-outline:hover {
            background: rgba(255, 204, 0, 0.1);
            border-color: var(--accent-gold);
        }

        .btn-outline:active {
            background: rgba(255, 204, 0, 0.18);
        }

        .btn-lg {
            padding: 15px 36px;
            font-size: 1.05rem;
            border-radius: 34px;
        }

        /* Hero Tier Cards */
        .hero-tiers {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .tier-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            transition: all var(--transition-smooth);
            cursor: default;
        }

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

        .tier-card .tier-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-full);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            flex-shrink: 0;
        }

        .tier-card.tier-basic .tier-icon {
            background: rgba(50, 205, 50, 0.18);
            color: var(--accent-lime);
        }
        .tier-card.tier-advanced .tier-icon {
            background: rgba(255, 184, 0, 0.18);
            color: var(--accent-amber);
        }
        .tier-card.tier-pro .tier-icon {
            background: rgba(255, 204, 0, 0.18);
            color: var(--accent-gold);
        }

        .tier-card .tier-info {
            flex: 1;
            min-width: 0;
        }
        .tier-card .tier-name {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-primary);
            margin-bottom: 2px;
        }
        .tier-card .tier-desc {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.4;
        }
        .tier-card .tier-arrow {
            color: var(--accent-gold);
            font-size: 0.85rem;
            flex-shrink: 0;
            transition: transform var(--transition-smooth);
        }
        .tier-card:hover .tier-arrow {
            transform: translateX(3px);
        }

        /* ============ SECTION COMMONS ============ */
        .section {
            padding: var(--section-gap) 0;
        }

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

        .section-header h2 {
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .section-header .section-subtitle {
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1.6;
            max-width: 640px;
        }

        .section-divider {
            width: 50px;
            height: 4px;
            background: var(--accent-gold);
            border-radius: 2px;
            margin: 14px 0 20px;
        }

        /* ============ PAIN POINTS SECTION ============ */
        .pain-section {
            background: var(--bg-secondary);
            position: relative;
        }

        .pain-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .pain-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: all var(--transition-smooth);
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }

        .pain-card:hover {
            border-color: rgba(255, 100, 80, 0.4);
            box-shadow: 0 6px 24px rgba(255, 60, 40, 0.08);
        }

        .pain-card .pain-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-full);
            background: rgba(255, 100, 80, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #FF8A70;
            flex-shrink: 0;
        }

        .pain-card .pain-text h4 {
            color: var(--text-primary);
            margin-bottom: 6px;
            font-size: 1rem;
        }
        .pain-card .pain-text p {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.5;
            margin: 0;
        }

        /* ============ SOLUTION SECTION ============ */
        .solution-section {
            background: var(--bg-primary);
        }

        .solution-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 28px;
            max-width: 860px;
        }

        .solution-item {
            display: grid;
            grid-template-columns: 70px 1fr;
            gap: 22px;
            align-items: flex-start;
            padding: 24px 28px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-card);
            transition: all var(--transition-smooth);
        }

        .solution-item:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold);
        }

        .solution-number {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-full);
            background: rgba(255, 204, 0, 0.13);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.4rem;
            color: var(--accent-gold);
            flex-shrink: 0;
        }

        .solution-content h3 {
            color: var(--text-primary);
            margin-bottom: 6px;
            font-size: 1.2rem;
        }
        .solution-content p {
            color: var(--text-secondary);
            font-size: 0.93rem;
            line-height: 1.6;
            margin: 0;
        }
        .solution-content .tip-tag {
            display: inline-block;
            background: rgba(50, 205, 50, 0.14);
            color: var(--accent-lime);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            margin-top: 10px;
        }

        /* ============ RESULTS / STATS SECTION ============ */
        .results-section {
            background: var(--bg-secondary);
            position: relative;
        }

        .results-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.07;
            pointer-events: none;
        }

        .results-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
            position: relative;
            z-index: 1;
        }

        .result-stat-card {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-card);
            transition: all var(--transition-smooth);
        }

        .result-stat-card:hover {
            border-color: var(--accent-lime);
            box-shadow: 0 8px 28px rgba(50, 205, 50, 0.12);
        }

        .result-stat-card .stat-big {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--accent-lime);
            line-height: 1;
            margin-bottom: 6px;
        }
        .result-stat-card .stat-big.gold {
            color: var(--accent-gold);
        }
        .result-stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.4;
        }

        /* ============ TESTIMONIALS SECTION ============ */
        .testimonials-section {
            background: var(--bg-primary);
        }

        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }

        .testimonial-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

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

        .testimonial-card .quote-icon {
            color: var(--accent-gold);
            font-size: 1.5rem;
            opacity: 0.6;
        }

        .testimonial-card .quote-text {
            color: var(--text-secondary);
            font-size: 0.93rem;
            line-height: 1.65;
            font-style: italic;
        }

        .testimonial-card .author-row {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .testimonial-card .author-avatar {
            width: 42px;
            height: 42px;
            border-radius: var(--radius-full);
            background: rgba(255, 204, 0, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--accent-gold);
            font-size: 0.95rem;
        }

        .testimonial-card .author-name {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-primary);
        }
        .testimonial-card .author-detail {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* ============ FEATURED ARTICLES (CMS AREA) ============ */
        .articles-section {
            background: var(--bg-secondary);
        }

        .articles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }

        .article-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-card);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }

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

        .article-card .article-img {
            width: 100%;
            height: 190px;
            object-fit: cover;
            display: block;
        }

        .article-card .article-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }

        .article-card .article-tag {
            display: inline-block;
            background: rgba(50, 205, 50, 0.14);
            color: var(--accent-lime);
            padding: 3px 10px;
            border-radius: 16px;
            font-size: 0.75rem;
            font-weight: 600;
            width: fit-content;
        }

        .article-card h4 {
            font-size: 1.05rem;
            color: var(--text-primary);
            line-height: 1.4;
        }

        .article-card .article-excerpt {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .article-card .article-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent-gold);
            font-weight: 600;
            font-size: 0.85rem;
            margin-top: auto;
            transition: gap var(--transition-fast);
        }

        .article-card .article-link:hover {
            gap: 10px;
        }

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

        .faq-list {
            max-width: 780px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            gap: 16px;
            transition: color var(--transition-fast);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: var(--radius-full);
            background: rgba(255, 204, 0, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            transition: all var(--transition-smooth);
            font-size: 0.8rem;
        }

        .faq-item.active .faq-question .faq-icon {
            transform: rotate(45deg);
            background: rgba(255, 204, 0, 0.25);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .faq-item.active .faq-answer {
            max-height: 350px;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.65;
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            background: var(--bg-secondary);
            position: relative;
            overflow: hidden;
            text-align: center;
            padding: 64px 0;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
            pointer-events: none;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            color: var(--text-primary);
            margin-bottom: 12px;
            font-size: 2.1rem;
        }

        .cta-inner p {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.6;
            margin-bottom: 24px;
        }

        .cta-inner .btn-primary {
            font-size: 1.05rem;
            padding: 15px 40px;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-dark);
            border-top: 3px solid var(--accent-gold);
            padding: 56px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 36px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            color: var(--accent-gold);
            margin-bottom: 16px;
            font-size: 1rem;
        }

        .footer-col p {
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.6;
            margin: 0;
        }

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

        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
            color: var(--text-muted);
            font-size: 0.82rem;
        }

        .age-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 204, 0, 0.12);
            color: var(--accent-gold);
            padding: 6px 14px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.8rem;
        }

        /* ============ FAB - LEFT FLOATING ACTION BUTTON ============ */
        .fab-left {
            position: fixed;
            left: 20px;
            bottom: 96px;
            z-index: 999;
            width: 56px;
            height: 56px;
            border-radius: var(--radius-full);
            background: var(--bg-dark);
            border: 2.5px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-gold);
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            opacity: 0.7;
            transition: all var(--transition-smooth);
            animation: fab-float 3s ease-in-out infinite;
        }

        @keyframes fab-float {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-7px);
            }
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.12);
            box-shadow: 0 8px 32px rgba(255, 215, 0, 0.5);
            animation: none;
        }

        .fab-left:active {
            transform: scale(0.94) translateY(2px);
            box-shadow: 0 2px 10px rgba(255, 215, 0, 0.3);
        }

        .fab-notification {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            background: #D32F2F;
            border-radius: var(--radius-full);
            border: 2px solid var(--bg-dark);
            animation: fab-blink 1.8s ease-in-out infinite;
        }

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

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .hero-tiers {
                flex-direction: row;
                flex-wrap: wrap;
                gap: 12px;
            }
            .tier-card {
                flex: 1;
                min-width: 200px;
            }
            .results-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 60px;
                --section-gap: 40px;
            }

            .container {
                padding: 0 18px;
            }

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

            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 260px;
                height: 100vh;
                background: rgba(6, 35, 21, 0.98);
                backdrop-filter: blur(18px);
                -webkit-backdrop-filter: blur(18px);
                flex-direction: column;
                padding: 90px 28px 40px;
                gap: 4px;
                transition: right var(--transition-smooth);
                box-shadow: -8px 0 30px rgba(0, 0, 0, 0.5);
                z-index: 1000;
            }

            .nav-links.open {
                right: 0;
            }

            .nav-links a {
                width: 100%;
                padding: 14px 18px;
                border-radius: var(--radius-sm);
                font-size: 1rem;
            }

            .hero-section {
                padding: calc(var(--nav-height) + 32px) 0 44px;
                min-height: auto;
            }

            .hero-content h1 {
                font-size: 1.8rem;
            }
            .hero-content .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-tiers {
                flex-direction: column;
            }
            .tier-card {
                min-width: auto;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .hero-cta-group .btn {
                width: 100%;
                justify-content: center;
            }

            .pain-grid {
                grid-template-columns: 1fr;
            }
            .solution-item {
                grid-template-columns: 50px 1fr;
                gap: 14px;
                padding: 18px 16px;
            }
            .solution-number {
                width: 44px;
                height: 44px;
                font-size: 1.1rem;
            }
            .results-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .result-stat-card {
                padding: 22px 14px;
            }
            .result-stat-card .stat-big {
                font-size: 2rem;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .articles-grid {
                grid-template-columns: 1fr;
            }
            .cta-inner h2 {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 520px) {
            :root {
                --section-gap: 32px;
            }
            .container {
                padding: 0 14px;
            }
            .hero-content h1 {
                font-size: 1.5rem;
            }
            .hero-progress-group {
                flex-direction: column;
                align-items: flex-start;
            }
            .results-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .result-stat-card {
                padding: 16px 10px;
            }
            .result-stat-card .stat-big {
                font-size: 1.6rem;
            }
            .result-stat-card .stat-label {
                font-size: 0.78rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
            .fab-left {
                width: 46px;
                height: 46px;
                left: 14px;
                bottom: 80px;
                font-size: 1.2rem;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
        }