/* roulang page: index */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #0F3A24;
            --bg-tertiary: #123E25;
            --accent-gold: #FFD700;
            --accent-gold-light: #FFE566;
            --accent-red: #D32F2F;
            --text-primary: #FFFFFF;
            --text-secondary: #D1F2EB;
            --text-muted: rgba(209,242,235,0.72);
            --border-gold: rgba(255,215,0,0.28);
            --border-gold-light: rgba(255,215,0,0.45);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-gold-sm: 0 2px 14px rgba(255,215,0,0.12);
            --shadow-gold-md: 0 8px 32px rgba(255,215,0,0.18);
            --shadow-gold-lg: 0 16px 48px rgba(255,215,0,0.22);
            --shadow-fab: 0 4px 20px rgba(255,215,0,0.3);
            --transition-base: 220ms ease;
            --transition-smooth: 320ms cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Be Vietnam Pro', system-ui, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.65;
            margin: 0;
            padding: 0;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        /* Header / Nav */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(6, 18, 12, 0.86);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 215, 0, 0.16);
            transition: background var(--transition-smooth), border-color var(--transition-smooth);
        }

        .site-header.scrolled {
            background: rgba(4, 14, 9, 0.95);
            border-bottom-color: rgba(255, 215, 0, 0.28);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 1rem;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 800;
            font-size: 1.05rem;
            color: var(--accent-gold);
            letter-spacing: -0.01em;
            white-space: nowrap;
            line-height: 1.3;
        }

        .nav-logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(145deg, #1A4A30 0%, #0A2E1C 100%);
            border: 1.5px solid var(--border-gold);
            border-radius: 50%;
            color: var(--accent-gold);
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .nav-links-desktop {
            display: none;
            align-items: center;
            gap: 0.25rem;
        }

        @media (min-width: 768px) {
            .nav-links-desktop {
                display: flex;
            }
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.55rem 0.85rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 9999px;
            transition: color var(--transition-base), background-color var(--transition-base);
        }

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

        .nav-link.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.12);
            font-weight: 600;
        }

        .nav-auth {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-left: 0.5rem;
        }

        .btn-login-text {
            padding: 0.5rem 0.75rem;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            border: none;
            border-radius: 9999px;
            cursor: pointer;
            transition: color var(--transition-base), background-color var(--transition-base);
            white-space: nowrap;
        }

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

        .btn-signup-solid {
            padding: 0.55rem 1.15rem;
            font-size: 0.9rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, var(--accent-gold-light) 0%, var(--accent-gold) 100%);
            border: none;
            border-radius: 9999px;
            cursor: pointer;
            box-shadow: var(--shadow-gold-sm);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            white-space: nowrap;
        }

        .btn-signup-solid:hover {
            transform: translateY(-1px);
            box-shadow: var(--shadow-gold-md);
        }
        .btn-signup-solid:active {
            transform: scale(0.97);
        }

        .nav-mobile-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid var(--border-gold);
            border-radius: 10px;
            color: var(--accent-gold);
            font-size: 1.15rem;
            cursor: pointer;
            transition: background-color var(--transition-base);
        }

        .nav-mobile-toggle:hover {
            background: rgba(255, 215, 0, 0.16);
        }

        @media (min-width: 768px) {
            .nav-mobile-toggle {
                display: none;
            }
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 0.35rem;
            padding: 0.8rem 1.25rem 1.25rem;
            background: rgba(4, 14, 9, 0.97);
            border-bottom: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: 0 0 18px 18px;
        }

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

        .mobile-menu .nav-link {
            width: 100%;
            justify-content: flex-start;
            padding: 0.7rem 0.9rem;
            font-size: 0.95rem;
            border-radius: 10px;
        }

        .mobile-menu .nav-auth {
            margin-top: 0.5rem;
            margin-left: 0;
            flex-direction: column;
            align-items: stretch;
            gap: 0.4rem;
        }

        .mobile-menu .btn-login-text,
        .mobile-menu .btn-signup-solid {
            width: 100%;
            text-align: center;
        }

        /* Hero section */
        .hero-section {
            position: relative;
            padding-top: 7rem;
            padding-bottom: 3.5rem;
            background-image: linear-gradient(180deg, rgba(6, 18, 12, 0.72) 0%, rgba(10, 46, 28, 0.88) 55%, var(--bg-primary) 100%), url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center center;
            background-repeat: no-repeat;
            border-bottom: 1px solid rgba(255, 215, 0, 0.1);
        }

        @media (min-width: 768px) {
            .hero-section {
                padding-top: 8.5rem;
                padding-bottom: 4.5rem;
            }
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.45rem;
            padding: 0.4rem 0.8rem;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.09);
            border: 1px solid var(--border-gold);
            border-radius: 9999px;
            letter-spacing: 0.02em;
            margin-bottom: 1rem;
        }

        .hero-badge .dot {
            width: 7px;
            height: 7px;
            background: var(--accent-red);
            border-radius: 50%;
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.35); }
        }

        .hero-title {
            font-size: 1.7rem;
            font-weight: 900;
            color: var(--text-primary);
            line-height: 1.25;
            letter-spacing: -0.02em;
            max-width: 720px;
            margin: 0 0 1rem 0;
        }

        @media (min-width: 768px) {
            .hero-title {
                font-size: 2.4rem;
            }
        }
        @media (min-width: 1024px) {
            .hero-title {
                font-size: 2.85rem;
            }
        }

        .hero-subtitle {
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 0 1.5rem 0;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 0.7rem;
            margin-bottom: 1.75rem;
        }

        .btn-gold {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 1.4rem;
            font-size: 0.95rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, var(--accent-gold-light) 0%, var(--accent-gold) 100%);
            border: none;
            border-radius: 9999px;
            cursor: pointer;
            box-shadow: var(--shadow-gold-sm);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }

        .btn-gold:hover {
            transform: translateY(-1px);
            box-shadow: var(--shadow-gold-md);
        }
        .btn-gold:active {
            transform: scale(0.97);
        }

        .btn-outline-gold {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 1.4rem;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--accent-gold);
            background: transparent;
            border: 1.5px solid var(--border-gold);
            border-radius: 9999px;
            cursor: pointer;
            transition: background-color var(--transition-base), border-color var(--transition-base);
        }

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

        .hero-status-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem 1.5rem;
            padding: 1rem 1.25rem;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 215, 0, 0.14);
            border-radius: var(--radius-md);
            margin-bottom: 1.75rem;
        }

        .status-item {
            display: flex;
            align-items: center;
            gap: 0.55rem;
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        .status-item i {
            color: var(--accent-gold);
            font-size: 0.95rem;
        }

        .status-item strong {
            color: var(--text-primary);
            font-weight: 700;
            font-size: 0.95rem;
        }

        .hero-icon-matrix {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 0.7rem;
            max-width: 660px;
        }

        @media (min-width: 640px) {
            .hero-icon-matrix {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (min-width: 768px) {
            .hero-icon-matrix {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .icon-matrix-item {
            display: flex;
            align-items: center;
            gap: 0.55rem;
            padding: 0.65rem 0.8rem;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 215, 0, 0.12);
            border-radius: 10px;
            font-size: 0.8rem;
            color: var(--text-secondary);
            transition: border-color var(--transition-base), background-color var(--transition-base);
        }

        .icon-matrix-item:hover {
            border-color: var(--border-gold-light);
            background: rgba(255, 215, 0, 0.06);
        }

        .icon-matrix-item i {
            color: var(--accent-gold);
            font-size: 1rem;
            flex-shrink: 0;
        }

        /* Sections general */
        .section-pad {
            padding-top: 3.25rem;
            padding-bottom: 3.25rem;
        }

        @media (min-width: 768px) {
            .section-pad {
                padding-top: 4.25rem;
                padding-bottom: 4.25rem;
            }
        }

        .section-header-left {
            text-align: left;
            max-width: 680px;
            margin-bottom: 1.75rem;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--accent-gold);
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 0.5rem;
        }

        .section-eyebrow::before {
            content: '';
            width: 18px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
        }

        .section-title {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.3;
            letter-spacing: -0.015em;
            margin: 0 0 0.65rem 0;
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 1.8rem;
            }
        }

        .section-desc {
            font-size: 0.95rem;
            line-height: 1.7;
            color: var(--text-secondary);
            margin: 0;
        }

        /* Benefit cards */
        .benefit-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
        }

        @media (min-width: 640px) {
            .benefit-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .benefit-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        .benefit-card {
            padding: 1.5rem 1.35rem;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 215, 0, 0.14);
            border-radius: var(--radius-md);
            transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
        }

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

        .benefit-card-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 46px;
            height: 46px;
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-gold);
            border-radius: 12px;
            color: var(--accent-gold);
            font-size: 1.2rem;
            margin-bottom: 0.9rem;
        }

        .benefit-card h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 0.45rem 0;
        }

        .benefit-card p {
            font-size: 0.85rem;
            line-height: 1.65;
            color: var(--text-muted);
            margin: 0;
        }

        /* Steps + mini FAQ */
        .steps-faq-wrapper {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }

        @media (min-width: 1024px) {
            .steps-faq-wrapper {
                grid-template-columns: 1.1fr 1fr;
                gap: 2rem;
            }
        }

        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .step-item {
            display: flex;
            gap: 1rem;
            padding: 1.1rem 1.2rem;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 215, 0, 0.12);
            border-radius: var(--radius-md);
            transition: border-color var(--transition-base);
        }

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

        .step-number {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--accent-gold-light) 0%, var(--accent-gold) 100%);
            color: #0A2E1C;
            font-weight: 800;
            font-size: 1.05rem;
            border-radius: 50%;
        }

        .step-content h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 0.3rem 0;
        }

        .step-content p {
            font-size: 0.83rem;
            line-height: 1.6;
            color: var(--text-muted);
            margin: 0;
        }

        .mini-faq {
            display: flex;
            flex-direction: column;
            gap: 0.9rem;
        }

        .mini-faq-item {
            padding: 1rem 1.15rem;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 215, 0, 0.12);
            border-radius: var(--radius-md);
        }

        .mini-faq-item h4 {
            font-size: 0.88rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin: 0 0 0.35rem 0;
        }

        .mini-faq-item p {
            font-size: 0.82rem;
            line-height: 1.6;
            color: var(--text-secondary);
            margin: 0;
        }

        /* Eligibility */
        .eligibility-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 0.8rem;
        }

        @media (min-width: 640px) {
            .eligibility-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .eligibility-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .eligibility-item {
            display: flex;
            flex-direction: column;
            gap: 0.35rem;
            padding: 1.1rem 1.1rem;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 215, 0, 0.12);
            border-radius: var(--radius-md);
        }

        .eligibility-item i {
            color: var(--accent-gold);
            font-size: 1.15rem;
            margin-bottom: 0.2rem;
        }

        .eligibility-item h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0;
        }

        .eligibility-item p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.55;
        }

        /* Hot topics */
        .topics-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
        }

        .topic-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.55rem 1rem;
            font-size: 0.84rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 215, 0, 0.14);
            border-radius: 9999px;
            transition: background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base);
            cursor: pointer;
        }

        .topic-tag:hover {
            background: rgba(255, 215, 0, 0.1);
            border-color: var(--border-gold-light);
            color: var(--accent-gold);
        }

        .topic-tag.hot {
            background: rgba(211, 47, 47, 0.15);
            border-color: rgba(211, 47, 47, 0.4);
            color: #ff6b6b;
        }

        /* Reviews */
        .review-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
        }

        @media (min-width: 768px) {
            .review-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        .review-card {
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
            padding: 1.4rem 1.35rem;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 215, 0, 0.14);
            border-radius: var(--radius-md);
            transition: border-color var(--transition-base), transform var(--transition-base);
        }

        .review-card:hover {
            border-color: var(--border-gold-light);
            transform: translateY(-2px);
        }

        .review-card-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 0.75rem;
        }

        .review-card-top h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0;
        }

        .review-badge {
            flex-shrink: 0;
            padding: 0.25rem 0.6rem;
            font-size: 0.7rem;
            font-weight: 700;
            color: #fff;
            background: var(--accent-red);
            border-radius: 9999px;
            letter-spacing: 0.03em;
        }

        .review-badge.gold {
            background: var(--accent-gold);
            color: #0A2E1C;
        }

        .review-card p {
            font-size: 0.85rem;
            line-height: 1.65;
            color: var(--text-muted);
            margin: 0;
        }

        .review-card-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            font-size: 0.8rem;
            color: var(--text-secondary);
        }

        .review-card-meta i {
            color: var(--accent-gold);
            margin-right: 0.25rem;
        }

        /* News / CMS list */
        .news-wrapper {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }

        @media (min-width: 1024px) {
            .news-wrapper {
                grid-template-columns: 1.3fr 1fr;
                gap: 2rem;
            }
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

        .news-list-item {
            display: flex;
            flex-direction: column;
            gap: 0.2rem;
            padding: 0.95rem 1.1rem;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 215, 0, 0.1);
            border-radius: var(--radius-md);
            transition: border-color var(--transition-base), background-color var(--transition-base);
        }

        .news-list-item:hover {
            border-color: var(--border-gold-light);
            background: rgba(255, 215, 0, 0.05);
        }

        .news-list-title {
            font-size: 0.92rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.45;
        }

        .news-list-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .news-list-meta i {
            margin-right: 0.25rem;
            color: var(--accent-gold);
        }

        .news-list-excerpt {
            font-size: 0.82rem;
            line-height: 1.55;
            color: var(--text-secondary);
        }

        .news-side-panel {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            height: fit-content;
        }

        .news-side-card {
            padding: 1.25rem 1.3rem;
            background: rgba(255, 215, 0, 0.05);
            border: 1px solid rgba(255, 215, 0, 0.16);
            border-radius: var(--radius-md);
        }

        .news-side-card h4 {
            font-size: 0.92rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin: 0 0 0.45rem 0;
        }

        .news-side-card p {
            font-size: 0.84rem;
            line-height: 1.6;
            color: var(--text-secondary);
            margin: 0;
        }

        .empty-state {
            padding: 1.5rem 1.2rem;
            background: rgba(255, 255, 255, 0.03);
            border: 1px dashed rgba(255, 215, 0, 0.25);
            border-radius: var(--radius-md);
            text-align: left;
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* Form */
        .form-section-bg {
            background: linear-gradient(160deg, rgba(15, 58, 36, 0.65) 0%, rgba(6, 18, 12, 0.9) 100%);
            border: 1px solid rgba(255, 215, 0, 0.14);
            border-radius: var(--radius-lg);
            padding: 1.75rem 1.5rem;
        }

        @media (min-width: 768px) {
            .form-section-bg {
                padding: 2rem 2.25rem;
            }
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
            margin-bottom: 1rem;
        }

        @media (min-width: 640px) {
            .form-row {
                grid-template-columns: 1fr 1fr;
            }
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.35rem;
        }

        .form-group label {
            font-size: 0.83rem;
            font-weight: 600;
            color: var(--text-secondary);
        }

        .form-group input,
        .form-group select {
            padding: 0.7rem 0.9rem;
            font-size: 0.9rem;
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: 10px;
            transition: border-color var(--transition-base), background-color var(--transition-base);
        }

        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.05);
            outline: none;
        }

        .form-group input::placeholder {
            color: rgba(209, 242, 235, 0.5);
        }

        .form-submit-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.75rem;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
        }

        .faq-item {
            border: 1px solid rgba(255, 215, 0, 0.12);
            border-radius: var(--radius-md);
            overflow: hidden;
            background: rgba(255, 255, 255, 0.02);
            transition: border-color var(--transition-base);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            width: 100%;
            padding: 1rem 1.2rem;
            font-size: 0.92rem;
            font-weight: 700;
            color: var(--text-primary);
            background: transparent;
            border: none;
            cursor: pointer;
            text-align: left;
        }

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

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

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

        .faq-answer-inner {
            padding: 0 1.2rem 1.1rem;
            font-size: 0.86rem;
            line-height: 1.7;
            color: var(--text-secondary);
        }

        /* FAB */
        .fab-crown {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 80;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 54px;
            height: 54px;
            background: linear-gradient(145deg, #1A4A30 0%, #062315 100%);
            border: 2.5px solid var(--accent-gold);
            border-radius: 50%;
            color: var(--accent-gold);
            font-size: 1.35rem;
            cursor: pointer;
            box-shadow: var(--shadow-fab);
            opacity: 0.7;
            animation: fab-float 3.5s ease-in-out infinite;
            transition: opacity var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
        }

        .fab-crown::after {
            content: '';
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: var(--accent-red);
            border: 2px solid #0A2E1C;
            border-radius: 50%;
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        .fab-crown:hover {
            opacity: 1;
            transform: scale(1.12);
            box-shadow: 0 8px 32px rgba(255, 215, 0, 0.45);
        }

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

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

        /* Footer */
        .site-footer {
            background: #020D08;
            border-top: 1px solid rgba(255, 215, 0, 0.14);
            padding-top: 2.75rem;
            padding-bottom: 1.75rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.75rem;
            margin-bottom: 1.5rem;
        }

        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1.4fr 1fr 1fr;
            }
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
        }

        .footer-logo {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.4;
        }

        .footer-brand p {
            font-size: 0.84rem;
            line-height: 1.6;
            color: var(--text-muted);
            margin: 0;
            max-width: 340px;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 0.7rem 0;
        }

        .footer-col a {
            display: block;
            font-size: 0.84rem;
            color: var(--text-secondary);
            padding: 0.25rem 0;
            transition: color var(--transition-base);
        }

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

        .footer-bottom {
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
            padding-top: 1.25rem;
            border-top: 1px solid rgba(255, 215, 0, 0.1);
        }

        @media (min-width: 768px) {
            .footer-bottom {
                flex-direction: row;
                align-items: center;
                justify-content: space-between;
            }
        }

        .footer-bottom p {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin: 0;
        }

        .footer-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
        }

        .badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.3rem 0.7rem;
            font-size: 0.75rem;
            font-weight: 800;
            color: #fff;
            background: var(--accent-red);
            border-radius: 6px;
        }

        .badge-pay {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            padding: 0.3rem 0.7rem;
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 215, 0, 0.16);
            border-radius: 6px;
        }

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

        /* Responsive adjustments */
        @media (max-width: 480px) {
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-status-bar {
                flex-direction: column;
                gap: 0.5rem;
            }
            .btn-gold,
            .btn-outline-gold {
                width: 100%;
                justify-content: center;
            }
            .nav-logo {
                font-size: 0.92rem;
            }
        }

        /* Tag labels on cards */
        .tag-hot {
            display: inline-flex;
            align-items: center;
            font-size: 0.68rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            padding: 0.2rem 0.55rem;
            background: var(--accent-red);
            color: #fff;
            border-radius: 9999px;
        }

        .tag-new {
            display: inline-flex;
            align-items: center;
            font-size: 0.68rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            padding: 0.2rem 0.55rem;
            background: var(--accent-gold);
            color: #0A2E1C;
            border-radius: 9999px;
        }

        /* Divider with gold accent */
        .divider-gold {
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, rgba(255, 215, 0, 0.3) 0%, rgba(255, 215, 0, 0.08) 100%);
            margin: 0;
        }

/* roulang page: article */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #0F3A24;
            --bg-tertiary: #123E25;
            --accent-gold: #FFD700;
            --accent-gold-light: #FFE566;
            --accent-red: #D32F2F;
            --text-primary: #FFFFFF;
            --text-secondary: #D1F2EB;
            --text-muted: rgba(209,242,235,0.72);
            --border-gold: rgba(255,215,0,0.28);
            --border-gold-light: rgba(255,215,0,0.45);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-gold-sm: 0 2px 14px rgba(255,215,0,0.12);
            --shadow-gold-md: 0 8px 32px rgba(255,215,0,0.18);
            --shadow-gold-lg: 0 16px 48px rgba(255,215,0,0.22);
            --shadow-fab: 0 4px 20px rgba(255,215,0,0.3);
            --transition-base: 220ms ease;
            --transition-smooth: 320ms cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            box-sizing: border-box;
        }

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

        body {
            font-family: 'Be Vietnam Pro', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.65;
            margin: 0;
            padding: 0;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            font-size: 16px;
        }

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

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

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

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

        h1, h2, h3, h4, h5, h6 {
            margin-top: 0;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.01em;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(6, 18, 12, 0.86);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 215, 0, 0.16);
            transition: background var(--transition-smooth), border-color var(--transition-smooth);
        }

        .site-header.scrolled {
            background: rgba(4, 14, 9, 0.95);
            border-bottom-color: rgba(255, 215, 0, 0.28);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 1rem;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 800;
            font-size: 1.05rem;
            color: var(--accent-gold);
            letter-spacing: -0.01em;
            white-space: nowrap;
            line-height: 1.3;
            flex-shrink: 0;
        }

        .nav-logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(145deg, #1A4A30 0%, #0A2E1C 100%);
            border: 1.5px solid var(--border-gold);
            border-radius: 50%;
            color: var(--accent-gold);
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .nav-links-desktop {
            display: none;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: nowrap;
        }

        @media (min-width: 1024px) {
            .nav-links-desktop {
                display: flex;
            }
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.55rem 0.85rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 9999px;
            transition: color var(--transition-base), background-color var(--transition-base);
            white-space: nowrap;
        }

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

        .nav-link.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.12);
            font-weight: 600;
        }

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

        @media (max-width: 767px) {
            .nav-auth {
                display: none;
            }
        }

        .btn-login-text {
            padding: 0.5rem 0.75rem;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            border: none;
            border-radius: 9999px;
            cursor: pointer;
            transition: color var(--transition-base), background-color var(--transition-base);
            white-space: nowrap;
        }

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

        .btn-signup-solid {
            padding: 0.55rem 1.15rem;
            font-size: 0.9rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, var(--accent-gold-light) 0%, var(--accent-gold) 100%);
            border: none;
            border-radius: 9999px;
            cursor: pointer;
            box-shadow: var(--shadow-gold-sm);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            white-space: nowrap;
        }

        .btn-signup-solid:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold-md);
        }

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

        .nav-mobile-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-gold);
            border-radius: 10px;
            color: var(--accent-gold);
            font-size: 1.25rem;
            cursor: pointer;
            transition: background var(--transition-base), border-color var(--transition-base);
        }

        .nav-mobile-toggle:hover {
            background: rgba(255, 215, 0, 0.18);
            border-color: var(--border-gold-light);
        }

        @media (min-width: 1024px) {
            .nav-mobile-toggle {
                display: none;
            }
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 0.35rem;
            padding: 0.75rem 0 1.25rem;
            border-top: 1px solid rgba(255, 215, 0, 0.12);
        }

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

        @media (min-width: 1024px) {
            .mobile-menu {
                display: none !important;
            }
        }

        .mobile-menu .nav-auth {
            display: flex;
            margin-left: 0;
            margin-top: 0.75rem;
            gap: 0.75rem;
        }

        .mobile-menu .btn-login-text,
        .mobile-menu .btn-signup-solid {
            flex: 1;
            justify-content: center;
        }

        /* ========== ARTICLE HERO ========== */
        .article-hero {
            position: relative;
            padding: 130px 0 3rem;
            background:
                linear-gradient(180deg, rgba(4, 14, 9, 0.82) 0%, rgba(10, 46, 28, 0.88) 45%, rgba(10, 46, 28, 0.96) 100%),
                url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            overflow: hidden;
        }

        .article-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(180deg, transparent, var(--bg-primary));
            pointer-events: none;
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
        }

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

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

        .breadcrumb .separator {
            color: var(--text-muted);
            font-size: 0.7rem;
        }

        .article-hero-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.75rem;
            align-items: stretch;
        }

        @media (min-width: 1024px) {
            .article-hero-grid {
                grid-template-columns: 1.6fr 1fr;
                gap: 2.5rem;
            }
        }

        .article-hero-info {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .article-tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }

        .article-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.3rem 0.75rem;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-gold);
            border-radius: 9999px;
        }

        .article-tag i {
            font-size: 0.65rem;
        }

        .article-hero h1 {
            font-size: 1.85rem;
            font-weight: 900;
            color: var(--text-primary);
            margin-bottom: 1rem;
            line-height: 1.25;
        }

        @media (min-width: 768px) {
            .article-hero h1 {
                font-size: 2.25rem;
            }
        }

        @media (min-width: 1024px) {
            .article-hero h1 {
                font-size: 2.6rem;
            }
        }

        .article-hero-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin-bottom: 1.25rem;
            line-height: 1.7;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .article-meta-item {
            display: inline-flex;
            align-items: center;
            gap: 0.45rem;
        }

        .article-meta-item i {
            color: var(--accent-gold);
            font-size: 0.8rem;
        }

        .group-buy-card {
            background: linear-gradient(160deg, rgba(18, 62, 37, 0.95) 0%, rgba(10, 46, 28, 0.98) 100%);
            border: 1.5px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            box-shadow: var(--shadow-gold-md);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            gap: 1.1rem;
        }

        .group-buy-head {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .group-buy-avatar-stack {
            display: flex;
            align-items: center;
        }

        .group-buy-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 2px solid var(--bg-primary);
            background: linear-gradient(145deg, #1A4A30, #0A2E1C);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-right: -8px;
        }

        .group-buy-avatar:last-child {
            margin-right: 0;
        }

        .group-buy-count {
            font-weight: 700;
            color: var(--accent-gold);
            font-size: 1rem;
        }

        .group-buy-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        .group-buy-progress {
            width: 100%;
            height: 6px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 9999px;
            overflow: hidden;
        }

        .group-buy-progress-fill {
            height: 100%;
            width: 80%;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-gold-light));
            border-radius: 9999px;
            transition: width var(--transition-smooth);
        }

        .group-buy-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
        }

        .btn-primary-gold {
            flex: 1;
            min-width: 140px;
            padding: 0.75rem 1.25rem;
            font-size: 0.9rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, var(--accent-gold-light) 0%, var(--accent-gold) 100%);
            border: none;
            border-radius: 9999px;
            cursor: pointer;
            box-shadow: var(--shadow-gold-sm);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }

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

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

        .btn-outline-gold {
            flex: 1;
            min-width: 140px;
            padding: 0.75rem 1.25rem;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--accent-gold);
            background: transparent;
            border: 1.5px solid var(--border-gold);
            border-radius: 9999px;
            cursor: pointer;
            transition: background var(--transition-base), border-color var(--transition-base);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }

        .btn-outline-gold:hover {
            background: rgba(255, 215, 0, 0.1);
            border-color: var(--border-gold-light);
        }

        /* ========== ARTICLE BODY ========== */
        .article-main {
            padding: 2.5rem 0 4rem;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }

        @media (min-width: 1024px) {
            .article-layout {
                grid-template-columns: 2fr 1fr;
                gap: 2.5rem;
                align-items: start;
            }
        }

        .article-content-card {
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
        }

        @media (min-width: 768px) {
            .article-content-card {
                padding: 2rem;
            }
        }

        .article-content {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.75;
            word-wrap: break-word;
        }

        .article-content h2 {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-top: 2rem;
            margin-bottom: 0.85rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid rgba(255, 215, 0, 0.15);
        }

        .article-content h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-top: 1.5rem;
            margin-bottom: 0.65rem;
        }

        .article-content p {
            margin-bottom: 1rem;
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 1.25rem 1.25rem;
            padding-left: 0.5rem;
        }

        .article-content li {
            margin-bottom: 0.45rem;
        }

        .article-content img {
            border-radius: var(--radius-md);
            margin: 1.25rem 0;
            box-shadow: 0 4px 18px rgba(0, 0, 0, 0.25);
        }

        .article-content blockquote {
            margin: 1.5rem 0;
            padding: 1rem 1.25rem;
            background: rgba(255, 215, 0, 0.06);
            border-left: 3px solid var(--accent-gold);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-primary);
        }

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

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

        .article-not-found {
            text-align: center;
            padding: 3rem 1.5rem;
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .article-not-found h2 {
            font-size: 1.5rem;
            color: var(--accent-gold);
            margin-bottom: 0.75rem;
        }

        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: 1.5rem;
        }

        /* ========== PARAMETER TABLE ========== */
        .param-section {
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 215, 0, 0.15);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
            margin-bottom: 2rem;
        }

        @media (min-width: 768px) {
            .param-section {
                padding: 2rem;
            }
        }

        .param-section h2 {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 1.25rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .param-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 0.75rem;
        }

        @media (min-width: 768px) {
            .param-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
        }

        .param-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            padding: 0.75rem 1rem;
            background: rgba(255, 255, 255, 0.03);
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: background var(--transition-base), border-color var(--transition-base);
        }

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

        .param-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .param-value {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            text-align: right;
        }

        /* ========== SCREENSHOT CAROUSEL ========== */
        .carousel-section {
            margin-bottom: 2rem;
        }

        .carousel-section h2 {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .carousel-scroll {
            display: flex;
            gap: 1rem;
            overflow-x: auto;
            padding-bottom: 0.75rem;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border-gold) rgba(255, 255, 255, 0.05);
        }

        .carousel-scroll::-webkit-scrollbar {
            height: 6px;
        }

        .carousel-scroll::-webkit-scrollbar-track {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 9999px;
        }

        .carousel-scroll::-webkit-scrollbar-thumb {
            background: var(--border-gold);
            border-radius: 9999px;
        }

        .carousel-slide {
            scroll-snap-align: start;
            flex: 0 0 80%;
            max-width: 400px;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid rgba(255, 215, 0, 0.18);
            background: var(--bg-secondary);
            transition: border-color var(--transition-base);
        }

        @media (min-width: 768px) {
            .carousel-slide {
                flex: 0 0 45%;
            }
        }

        @media (min-width: 1024px) {
            .carousel-slide {
                flex: 0 0 32%;
            }
        }

        .carousel-slide:hover {
            border-color: var(--border-gold-light);
        }

        .carousel-slide img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
        }

        .carousel-slide-caption {
            padding: 0.75rem 1rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-secondary);
        }

        /* ========== RELATED CARDS ========== */
        .related-section {
            margin-bottom: 2rem;
        }

        .related-section h2 {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

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

        @media (min-width: 768px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.25rem;
            }
        }

        @media (min-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        .related-card {
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
            display: flex;
            flex-direction: column;
        }

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

        .related-card img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
        }

        .related-card-body {
            padding: 1rem 1.25rem 1.25rem;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            flex: 1;
        }

        .related-card-body h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0;
            line-height: 1.4;
        }

        .related-card-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
            flex: 1;
        }

        .related-card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-gold);
            transition: color var(--transition-base);
        }

        .related-card-link:hover {
            color: var(--accent-gold-light);
        }

        /* ========== SIDEBAR ========== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .sidebar-widget {
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 1.25rem;
        }

        .sidebar-widget h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .sidebar-post-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .sidebar-post {
            display: flex;
            gap: 0.75rem;
            align-items: center;
            padding: 0.5rem;
            border-radius: var(--radius-sm);
            transition: background var(--transition-base);
        }

        .sidebar-post:hover {
            background: rgba(255, 215, 0, 0.06);
        }

        .sidebar-post-thumb {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            border: 1px solid var(--border-gold);
        }

        .sidebar-post-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .sidebar-post-info h4 {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 0.2rem;
            line-height: 1.35;
        }

        .sidebar-post-info span {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .sidebar-cta-box {
            background: linear-gradient(160deg, rgba(18, 62, 37, 0.95) 0%, rgba(10, 46, 28, 0.98) 100%);
            border: 1.5px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 1.25rem;
            text-align: center;
        }

        .sidebar-cta-box h3 {
            color: var(--accent-gold);
            font-size: 1.05rem;
            margin-bottom: 0.5rem;
        }

        .sidebar-cta-box p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 1rem;
        }

        .sidebar-cta-box .btn-primary-gold {
            width: 100%;
        }

        /* ========== FAQ ========== */
        .faq-section {
            margin-bottom: 2rem;
        }

        .faq-section h2 {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 1.25rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition-base);
        }

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

        .faq-question {
            width: 100%;
            padding: 1rem 1.25rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            background: transparent;
            border: none;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            text-align: left;
            transition: color var(--transition-base);
        }

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

        .faq-question i {
            color: var(--accent-gold);
            font-size: 0.85rem;
            transition: transform var(--transition-base);
        }

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

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

        .faq-item.is-open .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 1.25rem 1.25rem;
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ========== CTA ========== */
        .cta-section {
            margin-bottom: 2rem;
        }

        .cta-banner {
            background:
                linear-gradient(160deg, rgba(18, 62, 37, 0.96) 0%, rgba(10, 46, 28, 0.98) 100%),
                url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
            border: 1.5px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 2.5rem 1.5rem;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-gold-lg);
        }

        @media (min-width: 768px) {
            .cta-banner {
                padding: 3rem 2rem;
            }
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            left: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.18), transparent 70%);
            pointer-events: none;
        }

        .cta-banner::after {
            content: '';
            position: absolute;
            bottom: -80px;
            right: -50px;
            width: 250px;
            height: 250px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.15), transparent 70%);
            pointer-events: none;
        }

        .cta-banner > * {
            position: relative;
            z-index: 2;
        }

        .cta-banner h2 {
            font-size: 1.5rem;
            font-weight: 900;
            color: var(--accent-gold);
            margin-bottom: 0.85rem;
        }

        @media (min-width: 768px) {
            .cta-banner h2 {
                font-size: 1.85rem;
            }
        }

        .cta-banner p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 1.5rem;
            line-height: 1.7;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1rem;
        }

        /* ========== FAB ========== */
        .fab-support {
            position: fixed;
            left: 1rem;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(145deg, #1A1A1A 0%, #0D0D0D 100%);
            border: 2px solid var(--accent-gold);
            box-shadow: var(--shadow-fab);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            opacity: 0.7;
            transition: opacity var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
            animation: fabFloat 3s ease-in-out infinite;
        }

        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 6px 28px rgba(255, 215, 0, 0.4);
            animation-play-state: paused;
        }

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

        .fab-support i {
            font-size: 1.4rem;
            color: var(--accent-gold);
            transition: transform var(--transition-base);
        }

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

        .fab-notification-dot {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #E11D48;
            border: 2px solid var(--bg-primary);
            animation: dotBlink 1.8s ease-in-out infinite;
        }

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

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

        /* ========== FOOTER ========== */
        .site-footer {
            background: #05140C;
            border-top: 1px solid rgba(255, 215, 0, 0.18);
            padding: 3rem 0 1.5rem;
            margin-top: 2rem;
        }

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

        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 1.4fr 1fr 1fr;
                gap: 2.5rem;
            }
        }

        .footer-brand .footer-logo {
            font-size: 1rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.4;
            display: block;
            margin-bottom: 0.85rem;
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 1rem;
        }

        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: var(--text-muted);
            padding: 0.3rem 0;
            transition: color var(--transition-base);
        }

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

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-bottom p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin: 0;
        }

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

        .badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.3rem 0.65rem;
            font-size: 0.75rem;
            font-weight: 800;
            color: #FFFFFF;
            background: #B91C1C;
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 4px;
        }

        .badge-pay {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.3rem 0.65rem;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid var(--border-gold);
            border-radius: 4px;
        }

        .badge-pay i {
            font-size: 0.65rem;
        }

        /* ========== Responsive ========== */
        @media (max-width: 767px) {
            .article-hero {
                padding-top: 110px;
                padding-bottom: 2.5rem;
            }

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

            .article-hero-desc {
                font-size: 0.9rem;
            }

            .group-buy-card {
                padding: 1.25rem;
            }

            .article-content-card {
                padding: 1.25rem;
            }

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

            .carousel-slide {
                flex: 0 0 85%;
            }

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

            .cta-banner {
                padding: 2rem 1.25rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

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

        @media (min-width: 768px) and (max-width: 1023px) {
            .article-hero h1 {
                font-size: 2rem;
            }

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

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

            .carousel-slide {
                flex: 0 0 48%;
            }

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

        @media (min-width: 1024px) {
            .article-main {
                padding: 3.5rem 0 4rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #0F3A24;
            --bg-tertiary: #123E25;
            --accent-gold: #FFD700;
            --accent-gold-light: #FFE566;
            --accent-red: #D32F2F;
            --text-primary: #FFFFFF;
            --text-secondary: #D1F2EB;
            --text-muted: rgba(209,242,235,0.72);
            --border-gold: rgba(255,215,0,0.28);
            --border-gold-light: rgba(255,215,0,0.45);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-gold-sm: 0 2px 14px rgba(255,215,0,0.12);
            --shadow-gold-md: 0 8px 32px rgba(255,215,0,0.18);
            --shadow-gold-lg: 0 16px 48px rgba(255,215,0,0.22);
            --shadow-fab: 0 4px 20px rgba(255,215,0,0.3);
            --transition-base: 220ms ease;
            --transition-smooth: 320ms cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Be Vietnam Pro', system-ui, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.65;
            margin: 0;
            padding: 0;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }
        @media (min-width: 640px) {
            .container { padding-left: 2rem; padding-right: 2rem; }
        }
        @media (min-width: 1024px) {
            .container { padding-left: 2.5rem; padding-right: 2.5rem; }
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(6, 18, 12, 0.86);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 215, 0, 0.16);
            transition: background var(--transition-smooth), border-color var(--transition-smooth);
        }
        .site-header.scrolled {
            background: rgba(4, 14, 9, 0.95);
            border-bottom-color: rgba(255, 215, 0, 0.28);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 1rem;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 800;
            font-size: 1.05rem;
            color: var(--accent-gold);
            letter-spacing: -0.01em;
            white-space: nowrap;
            line-height: 1.3;
        }
        .nav-logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(145deg, #1A4A30 0%, #0A2E1C 100%);
            border: 1.5px solid var(--border-gold);
            border-radius: 50%;
            color: var(--accent-gold);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .nav-links-desktop {
            display: none;
            align-items: center;
            gap: 0.25rem;
        }
        @media (min-width: 1024px) {
            .nav-links-desktop { display: flex; }
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.55rem 0.85rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 9999px;
            transition: color var(--transition-base), background-color var(--transition-base);
        }
        .nav-link:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }
        .nav-link.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.12);
            font-weight: 600;
        }
        .nav-auth {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-left: 0.5rem;
        }
        .btn-login-text {
            padding: 0.5rem 0.75rem;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            border: none;
            border-radius: 9999px;
            cursor: pointer;
            transition: color var(--transition-base), background-color var(--transition-base);
            white-space: nowrap;
        }
        .btn-login-text:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }
        .btn-signup-solid {
            padding: 0.55rem 1.15rem;
            font-size: 0.9rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, var(--accent-gold-light) 0%, var(--accent-gold) 100%);
            border: none;
            border-radius: 9999px;
            cursor: pointer;
            box-shadow: var(--shadow-gold-sm);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            white-space: nowrap;
        }
        .btn-signup-solid:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold-md);
        }
        .nav-mobile-toggle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            font-size: 1.25rem;
            color: var(--accent-gold);
            background: rgba(255,215,0,0.08);
            border: 1px solid var(--border-gold);
            border-radius: 12px;
            cursor: pointer;
            transition: background-color var(--transition-base);
        }
        @media (min-width: 1024px) {
            .nav-mobile-toggle { display: none; }
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 0.5rem;
            padding: 1rem 0 1.5rem;
            border-top: 1px solid var(--border-gold);
        }
        .mobile-menu.open { display: flex; }
        .mobile-menu .nav-link { width: 100%; }
        .mobile-menu .nav-auth {
            margin: 0.75rem 0 0;
            width: 100%;
            justify-content: stretch;
        }
        .mobile-menu .nav-auth button { flex: 1; }
        .site-main {
            padding-top: 68px;
        }
        .backdrop-panel {
            position: relative;
            overflow: hidden;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            padding: 3.5rem 0;
        }
        .backdrop-panel::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10,46,28,0.94) 0%, rgba(18,62,37,0.88) 55%, rgba(6,25,15,0.96) 100%);
            z-index: 1;
        }
        .backdrop-panel > .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
        }
        .breadcrumb a:hover { color: var(--accent-gold); }
        .badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border: 2px solid var(--accent-gold);
            border-radius: 50%;
            font-weight: 800;
            color: var(--accent-gold);
            font-size: 0.85rem;
        }
        .section-title {
            font-size: 1.8rem;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
        }
        .section-sub {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 720px;
        }
        .section-muted {
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        .divider-gold {
            width: 80px;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-gold-light));
            border-radius: 9999px;
            margin: 1rem 0 1.5rem;
        }
        .gold-card {
            background: rgba(255,255,255,0.04);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            backdrop-filter: blur(8px);
            transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .gold-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-gold-light);
            box-shadow: var(--shadow-gold-md);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(255,215,0,0.2), rgba(255,215,0,0.08));
            border: 1.5px solid var(--accent-gold);
            font-weight: 800;
            color: var(--accent-gold);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .article-list-item {
            display: flex;
            gap: 1rem;
            align-items: flex-start;
            padding: 1rem;
            border-radius: var(--radius-md);
            background: rgba(255,255,255,0.03);
            border-left: 3px solid var(--accent-gold);
            transition: background-color var(--transition-base);
        }
        .article-list-item:hover {
            background: rgba(255,215,0,0.06);
        }
        .faq-item {
            border-bottom: 1px solid rgba(255,215,0,0.15);
            padding: 1rem 0;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            cursor: pointer;
            transition: color var(--transition-base);
        }
        .faq-question:hover {
            color: var(--accent-gold);
        }
        .faq-answer {
            margin-top: 0.75rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            display: none;
            line-height: 1.6;
        }
        .faq-item.active .faq-answer { display: block; }
        .faq-question .fa-chevron-down {
            transition: transform var(--transition-base);
            color: var(--accent-gold);
        }
        .faq-item.active .faq-question .fa-chevron-down {
            transform: rotate(180deg);
        }
        .fab-support {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: radial-gradient(circle at 30% 25%, #1F4A2F 0%, #0A2E1C 65%);
            border: 2px solid #FFD700;
            box-shadow: var(--shadow-fab);
            cursor: pointer;
            transition: transform var(--transition-base), opacity var(--transition-base), box-shadow var(--transition-base);
            animation: fabFloat 3s ease-in-out infinite;
            opacity: 0.75;
        }
        .fab-support:hover {
            transform: scale(1.1);
            opacity: 1;
            box-shadow: 0 8px 28px rgba(255,215,0,0.45);
        }
        .fab-support i {
            font-size: 1.5rem;
            color: var(--accent-gold);
            filter: drop-shadow(0 0 4px rgba(255,215,0,0.5));
        }
        .fab-support .notification-dot {
            position: absolute;
            top: 4px;
            right: 4px;
            width: 12px;
            height: 12px;
            background: #D32F2F;
            border: 2px solid #0A2E1C;
            border-radius: 50%;
            box-shadow: 0 0 6px rgba(211,47,47,0.8);
            animation: blink 1.6s ease-in-out infinite;
        }
        @keyframes blink {
            0%, 100% { transform: scale(1); opacity: 1; }
            50% { transform: scale(0.8); opacity: 0.5; }
        }
        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            padding: 3rem 0 2rem;
        }
        @media (min-width: 768px) {
            .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; }
        }
        .footer-logo {
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--accent-gold);
            line-height: 1.4;
        }
        .footer-brand p {
            margin-top: 1rem;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--accent-gold);
        }
        .footer-col a {
            display: block;
            padding: 0.35rem 0;
            color: var(--text-secondary);
            font-size: 0.9rem;
            transition: color var(--transition-base);
        }
        .footer-col a:hover { color: var(--accent-gold); }
        .footer-bottom {
            border-top: 1px solid var(--border-gold);
            padding: 1.5rem 0;
            display: flex;
            flex-direction: column;
            gap: 1rem;
            align-items: flex-start;
            justify-content: space-between;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        @media (min-width: 768px) {
            .footer-bottom { flex-direction: row; align-items: center; }
        }
        .footer-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            align-items: center;
        }
        .badge-pay {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.4rem 0.75rem;
            border: 1px solid var(--border-gold);
            border-radius: 9999px;
            font-size: 0.75rem;
            color: var(--text-secondary);
            background: rgba(255,255,255,0.04);
        }
        .trust-row {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #0F3A24;
            --bg-tertiary: #123E25;
            --accent-gold: #FFD700;
            --accent-gold-light: #FFE566;
            --accent-red: #D32F2F;
            --text-primary: #FFFFFF;
            --text-secondary: #D1F2EB;
            --text-muted: rgba(209,242,235,0.72);
            --border-gold: rgba(255,215,0,0.28);
            --border-gold-light: rgba(255,215,0,0.45);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-gold-sm: 0 2px 14px rgba(255,215,0,0.12);
            --shadow-gold-md: 0 8px 32px rgba(255,215,0,0.18);
            --shadow-gold-lg: 0 16px 48px rgba(255,215,0,0.22);
            --shadow-fab: 0 4px 20px rgba(255,215,0,0.3);
            --transition-base: 220ms ease;
            --transition-smooth: 320ms cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Be Vietnam Pro', system-ui, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.65;
            margin: 0;
            padding: 0;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }
        @media (min-width: 640px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        @media (min-width: 1024px) {
            .container {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }
        /* Header / Nav */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(6, 18, 12, 0.86);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 215, 0, 0.16);
            transition: background var(--transition-smooth), border-color var(--transition-smooth);
        }
        .site-header.scrolled {
            background: rgba(4, 14, 9, 0.95);
            border-bottom-color: rgba(255, 215, 0, 0.28);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 1rem;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 800;
            font-size: 1.05rem;
            color: var(--accent-gold);
            letter-spacing: -0.01em;
            white-space: nowrap;
            line-height: 1.3;
        }
        .nav-logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(145deg, #1A4A30 0%, #0A2E1C 100%);
            border: 1.5px solid var(--border-gold);
            border-radius: 50%;
            color: var(--accent-gold);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .nav-links-desktop {
            display: none;
            align-items: center;
            gap: 0.25rem;
        }
        @media (min-width: 1024px) {
            .nav-links-desktop {
                display: flex;
            }
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.55rem 0.85rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 9999px;
            transition: color var(--transition-base), background-color var(--transition-base);
        }
        .nav-link:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }
        .nav-link.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.12);
            font-weight: 600;
        }
        .nav-auth {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-left: 0.5rem;
        }
        .btn-login-text {
            padding: 0.5rem 0.75rem;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            border: none;
            border-radius: 9999px;
            cursor: pointer;
            transition: color var(--transition-base), background-color var(--transition-base);
            white-space: nowrap;
        }
        .btn-login-text:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }
        .btn-signup-solid {
            padding: 0.55rem 1.15rem;
            font-size: 0.9rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, var(--accent-gold-light) 0%, var(--accent-gold) 100%);
            border: none;
            border-radius: 9999px;
            cursor: pointer;
            box-shadow: var(--shadow-gold-sm);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            white-space: nowrap;
        }
        .btn-signup-solid:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold-md);
        }
        .nav-mobile-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: transparent;
            border: 1px solid var(--border-gold);
            border-radius: 10px;
            color: var(--accent-gold);
            font-size: 1.25rem;
            cursor: pointer;
            transition: background var(--transition-base);
        }
        .nav-mobile-toggle:hover {
            background: rgba(255, 215, 0, 0.08);
        }
        @media (min-width: 1024px) {
            .nav-mobile-toggle {
                display: none;
            }
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 0.5rem;
            padding: 1rem 0 1.25rem;
            border-top: 1px solid rgba(255, 215, 0, 0.12);
        }
        .mobile-menu.open {
            display: flex;
        }
        @media (min-width: 1024px) {
            .mobile-menu {
                display: none !important;
            }
        }
        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.85rem 1.75rem;
            font-size: 1rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, var(--accent-gold-light) 0%, var(--accent-gold) 100%);
            border: none;
            border-radius: 9999px;
            cursor: pointer;
            box-shadow: var(--shadow-gold-sm);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-gold-lg);
        }
        .btn-outline-gold {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.85rem 1.75rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--accent-gold);
            background: transparent;
            border: 1.5px solid var(--border-gold-light);
            border-radius: 9999px;
            cursor: pointer;
            transition: background var(--transition-base), transform var(--transition-base);
        }
        .btn-outline-gold:hover {
            background: rgba(255, 215, 0, 0.08);
            transform: translateY(-2px);
        }
        /* Hero */
        .hero-section {
            padding-top: 140px;
            padding-bottom: 80px;
            background-image: linear-gradient(135deg, rgba(10,46,28,0.95) 0%, rgba(15,58,36,0.9) 50%, rgba(8,32,20,0.98) 100%), url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
            min-height: 90vh;
            display: flex;
            align-items: center;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 20% 50%, rgba(255,215,0,0.06), transparent 40%);
            pointer-events: none;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 3rem;
            position: relative;
            z-index: 1;
        }
        @media (min-width: 768px) {
            .hero-grid {
                grid-template-columns: 1.1fr 0.9fr;
                align-items: center;
            }
        }
        .hero-heading {
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 1.5rem;
            color: var(--text-primary);
            max-width: 700px;
        }
        .hero-heading span {
            color: var(--accent-gold);
        }
        .hero-subheading {
            font-size: 1.125rem;
            color: var(--text-secondary);
            margin-bottom: 2rem;
            max-width: 650px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 2rem;
        }
        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            color: var(--text-muted);
            font-size: 0.875rem;
        }
        .hero-trust i {
            color: var(--accent-gold);
            margin-right: 0.4rem;
        }
        .hero-panel {
            background: rgba(18, 62, 37, 0.7);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 2rem;
            box-shadow: var(--shadow-gold-md);
        }
        .hero-panel h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 1rem;
        }
        .hero-panel ul {
            list-style: none;
            padding: 0;
            margin: 0 0 1.5rem;
        }
        .hero-panel li {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            margin-bottom: 0.9rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
        }
        .hero-panel li i {
            color: var(--accent-gold);
            margin-top: 0.2rem;
            flex-shrink: 0;
        }
        /* Section common */
        .section {
            padding: 80px 0;
        }
        .section-header {
            text-align: left;
            margin-bottom: 3rem;
            max-width: 800px;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            margin-bottom: 0.75rem;
        }
        .section-header p {
            color: var(--text-muted);
            font-size: 1.05rem;
        }
        .section-header.center {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }
        /* Tips grid */
        .tips-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        @media (min-width: 768px) {
            .tips-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .tips-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        .tip-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 2rem;
            transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .tip-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(180deg, var(--accent-gold), transparent);
            opacity: 0.8;
        }
        .tip-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-gold-md);
        }
        .tip-card-icon {
            font-size: 2rem;
            color: var(--accent-gold);
            margin-bottom: 1rem;
        }
        .tip-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--text-primary);
        }
        .tip-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            margin: 0;
        }
        /* Process steps */
        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        .step-item {
            display: flex;
            gap: 1.25rem;
            align-items: flex-start;
        }
        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold-light), var(--accent-gold));
            color: #0A2E1C;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.25rem;
            flex-shrink: 0;
        }
        .step-content h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
        }
        .step-content p {
            color: var(--text-muted);
            margin: 0;
        }
        /* Scenario block */
        .scenario-block {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            align-items: center;
        }
        @media (min-width: 768px) {
            .scenario-block {
                grid-template-columns: 1fr 1fr;
            }
        }
        .scenario-image {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-gold-lg);
        }
        .scenario-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .scenario-content h3 {
            font-size: 1.75rem;
            font-weight: 800;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }
        .scenario-content p {
            color: var(--text-muted);
            margin-bottom: 1rem;
        }
        .scenario-content ul {
            list-style: none;
            padding: 0;
            margin: 0 0 1.5rem;
        }
        .scenario-content li {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 0.75rem;
            color: var(--text-secondary);
        }
        .scenario-content li i {
            color: var(--accent-gold);
        }
        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            overflow: hidden;
        }
        .faq-question {
            width: 100%;
            padding: 1.25rem 1.5rem;
            text-align: left;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1.05rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            gap: 1rem;
        }
        .faq-question i {
            transition: transform var(--transition-base);
            color: var(--accent-gold);
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth);
        }
        .faq-answer-inner {
            padding: 0 1.5rem 1.25rem;
            color: var(--text-muted);
        }
        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-tertiary), #0A2E1C);
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
            padding: 80px 0;
            text-align: center;
        }
        .cta-inner {
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }
        .cta-inner p {
            color: var(--text-secondary);
            margin-bottom: 2rem;
            font-size: 1.05rem;
        }
        /* Footer */
        .site-footer {
            background: #06120C;
            border-top: 1px solid rgba(255,215,0,0.18);
            padding: 60px 0 30px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
            }
        }
        .footer-logo {
            font-weight: 800;
            color: var(--accent-gold);
            font-size: 1.2rem;
            display: block;
            margin-bottom: 1rem;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.95rem;
            max-width: 400px;
        }
        .footer-col h4 {
            color: var(--text-primary);
            font-weight: 700;
            margin-bottom: 1rem;
            font-size: 1rem;
        }
        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0.6rem;
            transition: color var(--transition-base);
        }
        .footer-col a:hover {
            color: var(--accent-gold);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,215,0,0.1);
            padding-top: 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 1rem;
            align-items: center;
            justify-content: space-between;
        }
        @media (min-width: 768px) {
            .footer-bottom {
                flex-direction: row;
            }
        }
        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin: 0;
        }
        .footer-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .badge-18,
        .badge-pay {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.4rem 0.8rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 700;
            border: 1px solid var(--border-gold);
            color: var(--text-secondary);
            background: rgba(255,215,0,0.05);
        }
        .badge-18 {
            color: #fff;
            background: var(--accent-red);
            border-color: transparent;
        }
        /* FAB */
        .fab-support {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(145deg, #1A4A30, #0A2E1C);
            border: 2px solid var(--accent-gold);
            box-shadow: var(--shadow-fab);
            color: var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            cursor: pointer;
            opacity: 0.7;
            animation: fabFloat 3s ease-in-out infinite;
            transition: opacity var(--transition-base), transform var(--transition-base);
        }
        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1);
        }
        .fab-support:active {
            transform: scale(0.95);
        }
        .fab-support::after {
            content: '';
            position: absolute;
            top: -2px;
            right: -2px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #D32F2F;
            border: 2px solid #fff;
            animation: blink 1.5s infinite;
        }
        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        /* Responsive typography */
        @media (max-width: 640px) {
            .hero-heading {
                font-size: 2rem;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #0F3A24;
            --bg-tertiary: #123E25;
            --accent-gold: #FFD700;
            --accent-gold-light: #FFE566;
            --accent-red: #D32F2F;
            --text-primary: #FFFFFF;
            --text-secondary: #D1F2EB;
            --text-muted: rgba(209,242,235,0.72);
            --border-gold: rgba(255,215,0,0.28);
            --border-gold-light: rgba(255,215,0,0.45);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-gold-sm: 0 2px 14px rgba(255,215,0,0.12);
            --shadow-gold-md: 0 8px 32px rgba(255,215,0,0.18);
            --shadow-gold-lg: 0 16px 48px rgba(255,215,0,0.22);
            --shadow-fab: 0 4px 20px rgba(255,215,0,0.3);
            --transition-base: 220ms ease;
            --transition-smooth: 320ms cubic-bezier(0.4, 0, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Be Vietnam Pro', system-ui, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.65;
            margin: 0;
            padding: 0;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            background-image: radial-gradient(circle at 15% 20%, rgba(255,215,0,0.06) 0%, transparent 28%),
                              radial-gradient(circle at 85% 75%, rgba(18,62,37,0.9) 0%, transparent 40%);
        }

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

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

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

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        @media (min-width: 1024px) {
            .container {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        /* Header / Nav */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(6, 18, 12, 0.86);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 215, 0, 0.16);
            transition: background var(--transition-smooth), border-color var(--transition-smooth);
        }
        .site-header.scrolled {
            background: rgba(4, 14, 9, 0.95);
            border-bottom-color: rgba(255, 215, 0, 0.28);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 1rem;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 800;
            font-size: 1.05rem;
            color: var(--accent-gold);
            letter-spacing: -0.01em;
            white-space: nowrap;
            line-height: 1.3;
        }
        .nav-logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(145deg, #1A4A30 0%, #0A2E1C 100%);
            border: 1.5px solid var(--border-gold);
            border-radius: 50%;
            color: var(--accent-gold);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .nav-links-desktop {
            display: none;
            align-items: center;
            gap: 0.25rem;
        }
        @media (min-width: 1024px) {
            .nav-links-desktop {
                display: flex;
            }
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.55rem 0.85rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 9999px;
            transition: color var(--transition-base), background-color var(--transition-base);
        }
        .nav-link:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }
        .nav-link.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.12);
            font-weight: 600;
        }
        .nav-auth {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-left: 0.5rem;
        }
        .btn-login-text {
            padding: 0.5rem 0.75rem;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            border: none;
            border-radius: 9999px;
            cursor: pointer;
            transition: color var(--transition-base), background-color var(--transition-base);
            white-space: nowrap;
        }
        .btn-login-text:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }
        .btn-signup-solid {
            padding: 0.55rem 1.15rem;
            font-size: 0.9rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, var(--accent-gold-light) 0%, var(--accent-gold) 100%);
            border: none;
            border-radius: 9999px;
            cursor: pointer;
            box-shadow: var(--shadow-gold-sm);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            white-space: nowrap;
        }
        .btn-signup-solid:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold-md);
        }
        .btn-signup-solid:active {
            transform: translateY(0);
            box-shadow: var(--shadow-gold-sm);
        }
        .nav-mobile-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border: 1px solid var(--border-gold);
            border-radius: 10px;
            background: rgba(255,215,0,0.08);
            color: var(--accent-gold);
            cursor: pointer;
            transition: background var(--transition-base);
        }
        .nav-mobile-toggle:hover {
            background: rgba(255,215,0,0.16);
        }
        @media (min-width: 1024px) {
            .nav-mobile-toggle {
                display: none;
            }
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 0.5rem;
            padding: 1rem 0 1.25rem;
            border-top: 1px solid var(--border-gold);
            animation: slideDown 240ms ease;
        }
        .mobile-menu.open {
            display: flex;
        }
        @media (min-width: 1024px) {
            .mobile-menu {
                display: none !important;
            }
        }
        @keyframes slideDown {
            from { opacity: 0; transform: translateY(-8px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* Hero category */
        .hero-category {
            padding: 7.5rem 0 3.5rem;
            position: relative;
            overflow: hidden;
            background: linear-gradient(145deg, rgba(10,46,28,0.94) 0%, rgba(18,62,37,0.85) 55%, rgba(10,46,28,0.95) 100%);
            border-bottom: 1px solid var(--border-gold);
        }
        .hero-category::after {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.14;
            pointer-events: none;
        }
        .hero-category .container {
            position: relative;
            z-index: 1;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
            align-items: center;
        }
        @media (min-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1.1fr 0.9fr;
                gap: 3rem;
            }
        }
        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.4rem 0.9rem;
            background: rgba(211,47,47,0.15);
            border: 1px solid rgba(211,47,47,0.4);
            color: #FF8A8A;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            margin-bottom: 1rem;
        }
        .hero-title {
            font-size: 2.1rem;
            font-weight: 900;
            line-height: 1.2;
            color: var(--text-primary);
            margin: 0 0 1.25rem;
            letter-spacing: -0.02em;
        }
        @media (min-width: 640px) {
            .hero-title {
                font-size: 2.7rem;
            }
        }
        @media (min-width: 1024px) {
            .hero-title {
                font-size: 3.2rem;
            }
        }
        .hero-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin: 0 0 1.75rem;
            max-width: 560px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 0.9rem;
        }
        .btn-primary-gold {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 1.5rem;
            background: linear-gradient(135deg, var(--accent-gold-light) 0%, var(--accent-gold) 100%);
            color: #0A2E1C;
            font-weight: 800;
            border: none;
            border-radius: 9999px;
            cursor: pointer;
            box-shadow: var(--shadow-gold-md);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }
        .btn-primary-gold:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold-lg);
        }
        .btn-secondary-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 1.5rem;
            background: transparent;
            color: var(--accent-gold);
            font-weight: 700;
            border: 1.5px solid var(--border-gold-light);
            border-radius: 9999px;
            cursor: pointer;
            transition: background var(--transition-base), border-color var(--transition-base);
        }
        .btn-secondary-outline:hover {
            background: rgba(255,215,0,0.08);
            border-color: var(--accent-gold);
        }
        .hero-rank-panel {
            background: rgba(6,18,12,0.72);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 1.5rem;
            box-shadow: var(--shadow-gold-lg);
        }
        .hero-rank-panel h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin: 0 0 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .hero-rank-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .hero-rank-item {
            display: flex;
            align-items: center;
            gap: 0.85rem;
            padding: 0.65rem 0.85rem;
            background: rgba(255,255,255,0.04);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,215,0,0.1);
            transition: border-color var(--transition-base), background var(--transition-base);
        }
        .hero-rank-item:hover {
            border-color: var(--border-gold-light);
            background: rgba(255,215,0,0.06);
        }
        .rank-number {
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold-light), var(--accent-gold));
            color: #0A2E1C;
            font-weight: 800;
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .rank-info {
            flex: 1;
            min-width: 0;
        }
        .rank-name {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-primary);
            margin-bottom: 0.2rem;
        }
        .rank-detail {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .rank-badge {
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.2rem 0.5rem;
            border-radius: 9999px;
            background: rgba(211,47,47,0.2);
            color: #FF9C9C;
            flex-shrink: 0;
        }

        /* Section general */
        .section {
            padding: 3.5rem 0;
        }
        @media (min-width: 768px) {
            .section {
                padding: 4.5rem 0;
            }
        }
        .section-header {
            margin-bottom: 2rem;
        }
        .section-header h2 {
            font-size: 1.8rem;
            font-weight: 900;
            letter-spacing: -0.01em;
            color: var(--text-primary);
            margin: 0 0 0.75rem;
            line-height: 1.3;
        }
        .section-header p {
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1.7;
            margin: 0;
            max-width: 720px;
        }
        .divider-gold {
            width: 56px;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), rgba(255,215,0,0.1));
            border-radius: 9999px;
            margin-bottom: 1rem;
        }

        /* Trust stats strip */
        .trust-strip {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
        }
        @media (min-width: 640px) {
            .trust-strip {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        .trust-item {
            display: flex;
            align-items: center;
            gap: 0.9rem;
            padding: 1.1rem;
            background: rgba(18,62,37,0.6);
            border: 1px solid rgba(255,215,0,0.15);
            border-radius: var(--radius-lg);
        }
        .trust-icon {
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255,215,0,0.1);
            color: var(--accent-gold);
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .trust-text strong {
            display: block;
            font-size: 0.95rem;
            color: var(--text-primary);
        }
        .trust-text span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Review cards */
        .review-list {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        .review-card {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.25rem;
            background: rgba(6,18,12,0.55);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 1.5rem;
            transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .review-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-gold-light);
            box-shadow: var(--shadow-gold-md);
        }
        @media (min-width: 768px) {
            .review-card {
                grid-template-columns: 180px 1fr;
                gap: 2rem;
                padding: 2rem;
            }
        }
        .review-card-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-gold-sm);
            min-height: 130px;
        }
        .review-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .review-card-media .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(0,0,0,0) 30%, rgba(10,46,28,0.9) 100%);
        }
        .review-card-media .top-label {
            position: absolute;
            top: 1rem;
            left: 1rem;
            padding: 0.35rem 0.75rem;
            background: var(--accent-red);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            border-radius: 9999px;
            letter-spacing: 0.02em;
        }
        .review-card-content {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .review-card-content h3 {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-primary);
            margin: 0 0 0.5rem;
        }
        .review-card-content .rating-row {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.9rem;
            flex-wrap: wrap;
        }
        .rating-stars {
            color: var(--accent-gold);
            font-size: 0.95rem;
        }
        .rating-score {
            font-weight: 800;
            color: var(--accent-gold);
            font-size: 1rem;
        }
        .rating-count {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .review-desc {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            margin: 0 0 1rem;
        }
        .review-features {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-bottom: 1.25rem;
        }
        .feature-chip {
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.3rem 0.6rem;
            border-radius: 9999px;
            background: rgba(255,215,0,0.08);
            color: var(--accent-gold-light);
            border: 1px solid rgba(255,215,0,0.2);
        }
        .review-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
        }
        .btn-review-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.6rem 1.2rem;
            background: var(--accent-gold);
            color: #0A2E1C;
            font-weight: 800;
            font-size: 0.85rem;
            border: none;
            border-radius: 9999px;
            cursor: pointer;
            transition: background var(--transition-base), transform var(--transition-base);
        }
        .btn-review-cta:hover {
            background: var(--accent-gold-light);
            transform: translateY(-2px);
        }

        /* Comparison table */
        .compare-wrapper {
            overflow-x: auto;
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            background: rgba(6,18,12,0.4);
        }
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
            font-size: 0.9rem;
        }
        .compare-table th, .compare-table td {
            padding: 1rem 1.25rem;
            text-align: left;
            border-bottom: 1px solid rgba(255,215,0,0.12);
        }
        .compare-table th {
            font-weight: 700;
            color: var(--accent-gold);
            background: rgba(255,215,0,0.06);
            white-space: nowrap;
        }
        .compare-table td {
            color: var(--text-secondary);
        }
        .compare-table tr:last-child td {
            border-bottom: none;
        }
        .compare-table .table-highlight {
            color: var(--accent-gold);
            font-weight: 600;
        }

        /* Criteria section */
        .criteria-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }
        @media (min-width: 640px) {
            .criteria-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .criteria-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }
        .criteria-card {
            background: rgba(18,62,37,0.5);
            border: 1px solid rgba(255,215,0,0.15);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            transition: border-color var(--transition-base), transform var(--transition-base);
            text-align: left;
        }
        .criteria-card:hover {
            border-color: var(--border-gold-light);
            transform: translateY(-4px);
        }
        .criteria-icon {
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: rgba(255,215,0,0.1);
            color: var(--accent-gold);
            font-size: 1.3rem;
            margin-bottom: 1rem;
        }
        .criteria-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 0.5rem;
        }
        .criteria-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            max-width: 820px;
        }
        .faq-item {
            background: rgba(6,18,12,0.5);
            border: 1px solid rgba(255,215,0,0.18);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition-base);
        }
        .faq-item.open {
            border-color: var(--border-gold-light);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.1rem 1.25rem;
            background: transparent;
            border: none;
            cursor: pointer;
            color: var(--text-primary);
            font-weight: 700;
            font-size: 0.98rem;
            text-align: left;
            transition: color var(--transition-base);
        }
        .faq-question:hover {
            color: var(--accent-gold);
        }
        .faq-question .fa-chevron-down {
            flex-shrink: 0;
            color: var(--accent-gold);
            transition: transform var(--transition-base);
        }
        .faq-item.open .faq-question .fa-chevron-down {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 280ms ease;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
        }
        .faq-answer-inner {
            padding: 0 1.25rem 1.25rem;
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        /* CTA */
        .cta-section {
            padding: 3rem 0 4.5rem;
        }
        .cta-card {
            background: linear-gradient(135deg, rgba(255,215,0,0.12) 0%, rgba(18,62,37,0.85) 45%, rgba(10,46,28,0.95) 100%);
            border: 1px solid var(--border-gold-light);
            border-radius: var(--radius-xl);
            padding: 2rem 1.5rem;
            text-align: left;
            box-shadow: var(--shadow-gold-lg);
        }
        @media (min-width: 768px) {
            .cta-card {
                padding: 2.5rem 3rem;
                display: flex;
                align-items: center;
                justify-content: space-between;
                gap: 2rem;
                text-align: left;
            }
        }
        .cta-card h2 {
            font-size: 1.5rem;
            font-weight: 900;
            color: var(--text-primary);
            margin: 0 0 0.6rem;
        }
        .cta-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin: 0;
            max-width: 560px;
            line-height: 1.7;
        }

        /* Footer */
        .site-footer {
            background: rgba(4,14,9,0.7);
            border-top: 1px solid var(--border-gold);
            padding: 3rem 0 1.5rem;
            margin-top: 1rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }
        }
        .footer-brand .footer-logo {
            font-weight: 800;
            font-size: 1rem;
            color: var(--accent-gold);
            display: block;
            margin-bottom: 0.75rem;
            line-height: 1.5;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.7;
            margin: 0;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 0.75rem;
        }
        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.85rem;
            padding: 0.3rem 0;
            transition: color var(--transition-base);
        }
        .footer-col a:hover {
            color: var(--accent-gold);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,215,0,0.12);
            padding-top: 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 1rem;
            align-items: flex-start;
            justify-content: space-between;
        }
        @media (min-width: 768px) {
            .footer-bottom {
                flex-direction: row;
                align-items: center;
            }
        }
        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.8rem;
            margin: 0;
        }
        .footer-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: linear-gradient(135deg, #D32F2F, #B71C1C);
            color: #fff;
            font-weight: 900;
            font-size: 0.75rem;
            border: 1px solid rgba(255,255,255,0.25);
        }
        .badge-pay {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.45rem 0.75rem;
            background: rgba(255,215,0,0.08);
            border: 1px solid rgba(255,215,0,0.25);
            border-radius: 9999px;
            color: var(--accent-gold);
            font-size: 0.75rem;
            font-weight: 600;
        }

        /* FAB */
        .fab-gold {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 80;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(145deg, #1A4A30 0%, #0A2E1C 100%);
            border: 1.5px solid var(--border-gold-light);
            color: var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: var(--shadow-fab);
            transition: transform var(--transition-smooth), opacity var(--transition-smooth), box-shadow var(--transition-smooth);
            animation: floatY 4s ease-in-out infinite;
            opacity: 0.7;
            font-size: 1.2rem;
        }
        .fab-gold:hover {
            transform: scale(1.1);
            opacity: 1;
            box-shadow: 0 0 25px rgba(255,215,0,0.45);
        }
        .fab-gold:active {
            transform: scale(0.95) translateY(2px);
        }
        .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent-red);
            border: 2px solid #0A2E1C;
            animation: blink 1.8s infinite;
        }
        @keyframes floatY {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.35; }
        }

        /* Utilities */
        .gold-gradient-text {
            background: linear-gradient(135deg, var(--accent-gold-light) 0%, var(--accent-gold) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .text-accent-gold { color: var(--accent-gold); }
        .bg-dark-panel { background: rgba(6,18,12,0.55); }