/* roulang page: index */
:root {
            --emerald-dark: #0A2E1C;
            --emerald-forest: #123E25;
            --emerald-deep: #0F3A24;
            --gold: #FFD700;
            --gold-light: #FFED4A;
            --red: #D32F2F;
            --white: #FFFFFF;
            --pale-mint: #D1F2EB;
            --text-muted: #A8C6BA;
            --border-gold: rgba(255, 215, 0, 0.35);
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.35);
            --radius-lg: 20px;
            --radius-md: 14px;
            --transition: all 0.3s ease;
            --font-family: 'Be Vietnam Pro', sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--emerald-dark);
            color: var(--white);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            padding-top: 76px;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        ul, ol {
            list-style: none;
        }
        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            padding: 12px 26px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            cursor: pointer;
            border: 2px solid transparent;
            transition: var(--transition);
            text-align: center;
            line-height: 1.2;
        }
        .btn:focus-visible {
            outline: 3px solid var(--gold);
            outline-offset: 3px;
        }
        .btn-primary {
            background: var(--gold);
            color: var(--emerald-dark);
            border-color: var(--gold);
            box-shadow: 0 6px 16px rgba(255, 215, 0, 0.2);
        }
        .btn-primary:hover {
            background: var(--gold-light);
            transform: translateY(-2px);
            box-shadow: 0 12px 24px rgba(255, 215, 0, 0.3);
        }
        .btn-outline {
            background: transparent;
            color: var(--gold);
            border-color: var(--gold);
        }
        .btn-outline:hover {
            background: rgba(255, 215, 0, 0.1);
            transform: translateY(-2px);
        }
        .btn-solid {
            background: var(--red);
            color: var(--white);
            border-color: var(--red);
            box-shadow: 0 6px 16px rgba(211, 47, 47, 0.25);
        }
        .btn-solid:hover {
            background: #e84848;
            transform: translateY(-2px);
            box-shadow: 0 10px 22px rgba(211, 47, 47, 0.35);
        }
        .btn-ghost {
            background: transparent;
            color: var(--white);
            border-color: transparent;
            padding: 10px 18px;
            font-weight: 600;
        }
        .btn-ghost:hover {
            color: var(--gold);
            background: rgba(255, 215, 0, 0.05);
        }

        /* Site Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(10, 46, 28, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-gold);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            min-height: 76px;
            flex-wrap: wrap;
        }
        .brand-logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--gold);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .brand-logo span {
            color: var(--pale-mint);
            font-weight: 600;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }
        .main-nav a {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--pale-mint);
            padding: 8px 2px;
            position: relative;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--gold);
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--gold);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: 2px solid var(--gold);
            color: var(--gold);
            border-radius: 10px;
            padding: 8px 12px;
            font-size: 1.3rem;
            cursor: pointer;
            line-height: 1;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 215, 0, 0.15);
        }

        /* Hero Section */
        .hero {
            background-image: linear-gradient(rgba(10, 46, 28, 0.82), rgba(10, 46, 28, 0.92)), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            padding: 100px 0 80px;
            position: relative;
            overflow: hidden;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 6px;
            background: linear-gradient(90deg, var(--gold), var(--red), var(--gold));
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 3rem;
            align-items: center;
        }
        .hero-copy .eyebrow {
            display: inline-block;
            background: rgba(255, 215, 0, 0.12);
            color: var(--gold);
            border: 1px solid var(--border-gold);
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            margin-bottom: 1.4rem;
            text-transform: uppercase;
        }
        .hero-copy h1 {
            font-size: 2.8rem;
            line-height: 1.2;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 1.2rem;
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
        }
        .hero-copy h1 .gold {
            color: var(--gold);
        }
        .hero-copy p {
            font-size: 1.05rem;
            color: var(--pale-mint);
            max-width: 560px;
            margin-bottom: 2rem;
            line-height: 1.65;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin-bottom: 2rem;
        }
        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .hero-badges li {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(10, 46, 28, 0.7);
            border: 1px solid var(--border-gold);
            color: var(--pale-mint);
            font-size: 0.9rem;
            font-weight: 600;
            padding: 8px 14px;
            border-radius: 999px;
        }
        .hero-badges i {
            color: var(--gold);
            font-size: 0.9rem;
        }
        .hero-visual {
            position: relative;
        }
        .hero-visual img {
            border-radius: var(--radius-lg);
            border: 2px solid var(--border-gold);
            box-shadow: var(--shadow-card);
            aspect-ratio: 4 / 3;
            object-fit: cover;
            width: 100%;
        }
        .hero-floating-card {
            position: absolute;
            bottom: -22px;
            right: -18px;
            background: rgba(15, 58, 36, 0.95);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.45);
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        .hero-floating-card i {
            font-size: 1.8rem;
            color: var(--gold);
        }
        .hero-floating-card .fc-title {
            font-weight: 800;
            color: var(--white);
            font-size: 1rem;
            line-height: 1.3;
        }
        .hero-floating-card .fc-sub {
            font-size: 0.8rem;
            color: var(--pale-mint);
        }

        /* Metrics Section */
        .metrics-section {
            background: var(--emerald-forest);
            padding: 48px 0;
            border-bottom: 1px solid var(--border-gold);
        }
        .metrics-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 1.5rem;
        }
        .metric {
            flex: 1 1 150px;
            text-align: left;
            padding: 0 1rem;
            border-left: 3px solid var(--gold);
            padding-left: 1rem;
        }
        .metric-value {
            display: block;
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--gold);
            line-height: 1.2;
        }
        .metric-label {
            font-size: 0.9rem;
            color: var(--pale-mint);
            font-weight: 500;
        }

        /* Section Common */
        .section {
            padding: 80px 0;
        }
        .section-heading {
            margin-bottom: 2.5rem;
            max-width: 720px;
        }
        .section-heading h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 0.8rem;
            line-height: 1.3;
        }
        .section-heading h2 .gold {
            color: var(--gold);
        }
        .section-heading p {
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1.65;
        }

        /* Promo Cards */
        .promo-section {
            background: var(--emerald-dark);
        }
        .promo-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.8rem;
        }
        .promo-card {
            background: var(--emerald-deep);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 2rem;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .promo-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--gold), var(--red));
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .promo-card:hover::before {
            opacity: 1;
        }
        .promo-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 18px 36px rgba(0, 0, 0, 0.4);
            border-color: var(--gold);
        }
        .promo-icon {
            width: 56px;
            height: 56px;
            background: rgba(255, 215, 0, 0.1);
            border: 2px solid var(--gold);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.4rem;
            font-size: 1.5rem;
            color: var(--gold);
        }
        .promo-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 0.8rem;
            line-height: 1.4;
        }
        .promo-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 1.2rem;
            line-height: 1.6;
        }
        .promo-card .btn {
            padding: 10px 18px;
            font-size: 0.85rem;
        }

        /* Download Guide */
        .download-section {
            background: var(--emerald-forest);
        }
        .download-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }
        .download-panel {
            background: var(--emerald-deep);
            border-left: 5px solid var(--gold);
            border-radius: var(--radius-md);
            padding: 2.2rem;
            transition: var(--transition);
        }
        .download-panel:hover {
            box-shadow: var(--shadow-card);
        }
        .download-panel h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--gold);
            margin-bottom: 1rem;
        }
        .download-panel .steps {
            margin-top: 1rem;
        }
        .download-panel .steps li {
            color: var(--pale-mint);
            font-size: 0.95rem;
            margin-bottom: 0.9rem;
            padding-left: 1.8rem;
            position: relative;
        }
        .download-panel .steps li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            color: var(--gold);
        }
        .download-panel .steps li span {
            font-weight: 700;
            color: var(--white);
        }

        /* Tips Section */
        .tips-section {
            background: var(--emerald-dark);
        }
        .tips-list {
            counter-reset: tip-counter;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }
        .tip-item {
            background: var(--emerald-deep);
            border: 1px solid transparent;
            border-radius: var(--radius-md);
            padding: 1.6rem 1.8rem;
            display: flex;
            gap: 1rem;
            align-items: flex-start;
            transition: var(--transition);
        }
        .tip-item:hover {
            border-color: var(--border-gold);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
        }
        .tip-number {
            background: var(--gold);
            color: var(--emerald-dark);
            font-weight: 800;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.1rem;
        }
        .tip-item h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 0.4rem;
        }
        .tip-item p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.55;
        }

        /* Notes Section */
        .notes-section {
            background: var(--emerald-forest);
        }
        .notes-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.2rem;
        }
        .note-item {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 1.3rem 1.5rem;
            display: flex;
            gap: 0.9rem;
            align-items: flex-start;
        }
        .note-item i {
            color: var(--gold);
            font-size: 1.3rem;
            margin-top: 0.2rem;
        }
        .note-item p {
            color: var(--pale-mint);
            font-size: 0.95rem;
            line-height: 1.55;
        }

        /* News / CMS Section */
        .news-section {
            background: var(--emerald-dark);
            padding: 80px 0;
        }
        .news-layout {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 2.5rem;
            align-items: start;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }
        .news-item {
            background: var(--emerald-deep);
            border: 1px solid transparent;
            border-radius: var(--radius-md);
            padding: 1.4rem 1.6rem;
            transition: var(--transition);
        }
        .news-item:hover {
            border-color: var(--border-gold);
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
        }
        .news-item a {
            display: block;
        }
        .news-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--gold);
            margin-bottom: 0.4rem;
            line-height: 1.4;
        }
        .news-item p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0.6rem;
            line-height: 1.6;
        }
        .news-meta {
            color: var(--pale-mint);
            font-size: 0.8rem;
            opacity: 0.8;
        }
        .empty-state {
            color: var(--text-muted);
            font-size: 1rem;
            padding: 2rem;
            background: var(--emerald-deep);
            border-radius: var(--radius-md);
            text-align: center;
        }
        .news-sidebar .sidebar-card {
            background: var(--emerald-deep);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            position: sticky;
            top: 100px;
        }
        .sidebar-card h3 {
            color: var(--gold);
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        .sidebar-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 1.2rem;
        }
        .sidebar-card img {
            border-radius: var(--radius-md);
            border: 2px solid var(--border-gold);
            margin-bottom: 1rem;
        }
        .sidebar-card .btn {
            width: 100%;
        }

        /* FAQ Section */
        .faq-section {
            background: var(--emerald-forest);
            padding: 80px 0;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-list details {
            background: var(--emerald-deep);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 1.2rem 1.5rem;
            transition: var(--transition);
        }
        .faq-list details[open] {
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
        }
        .faq-list summary {
            cursor: pointer;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--gold);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
        }
        .faq-list summary::-webkit-details-marker {
            display: none;
        }
        .faq-list summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.9rem;
            transition: transform 0.3s ease;
        }
        .faq-list details[open] summary::after {
            transform: rotate(180deg);
        }
        .faq-list details p {
            margin-top: 1rem;
            color: var(--pale-mint);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        /* CTA Section */
        .cta-section {
            background-image: linear-gradient(rgba(10, 46, 28, 0.88), rgba(10, 46, 28, 0.88)), url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            padding: 80px 0;
            text-align: center;
        }
        .cta-box {
            background: rgba(15, 58, 36, 0.85);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 3rem 2rem;
            max-width: 720px;
            margin: 0 auto;
            box-shadow: var(--shadow-card);
        }
        .cta-box h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 1rem;
        }
        .cta-box h2 .gold {
            color: var(--gold);
        }
        .cta-box p {
            color: var(--pale-mint);
            max-width: 560px;
            margin: 0 auto 2rem;
            line-height: 1.65;
        }
        .cta-form {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            justify-content: center;
        }
        .cta-form input[type="tel"] {
            flex: 1 1 260px;
            padding: 14px 20px;
            border-radius: 999px;
            border: 2px solid var(--border-gold);
            background: rgba(255, 255, 255, 0.08);
            color: var(--white);
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
            min-width: 0;
        }
        .cta-form input[type="tel"]::placeholder {
            color: var(--text-muted);
        }
        .cta-form input[type="tel"]:focus {
            border-color: var(--gold);
            background: rgba(255, 255, 255, 0.12);
            outline: none;
        }
        .form-note {
            margin-top: 1.2rem;
            color: var(--text-muted);
            font-size: 0.8rem;
        }

        /* Footer */
        .site-footer {
            background: #061f12;
            padding: 60px 0 0;
            border-top: 1px solid var(--border-gold);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 2.5rem;
            padding-bottom: 2.5rem;
        }
        .footer-brand .brand-logo {
            font-size: 1.2rem;
            margin-bottom: 1rem;
            display: inline-block;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            max-width: 300px;
        }
        .footer-heading {
            color: var(--gold);
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 1.2rem;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
        }
        .footer-links a {
            color: var(--pale-mint);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--gold);
            padding-left: 6px;
        }
        .footer-license p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .footer-license i {
            color: var(--gold);
        }
        .copyright {
            border-top: 1px solid rgba(255, 215, 0, 0.15);
            padding: 1.5rem 0;
            text-align: center;
        }
        .copyright p {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        /* Floating Action Button (Classic & Royal) */
        .fab-gold {
            position: fixed;
            left: 20px;
            bottom: 96px;
            z-index: 50;
            width: 60px;
            height: 60px;
            background: #0A0A0A;
            border: 3px solid var(--gold);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold);
            font-size: 1.5rem;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.35);
            opacity: 0.75;
            animation: fab-breathe 2.8s ease-in-out infinite;
            transition: transform 0.3s ease, opacity 0.3s ease;
            cursor: pointer;
        }
        .fab-gold:hover {
            transform: scale(1.1) rotate(360deg);
            opacity: 1;
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.55);
        }
        .fab-gold:active {
            transform: scale(0.95) translateY(2px);
        }
        .fab-gold .fab-dot {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 16px;
            height: 16px;
            background: var(--red);
            border: 2px solid #0A0A0A;
            border-radius: 50%;
            animation: fab-dot-blink 1.6s ease-in-out infinite;
        }
        @keyframes fab-breathe {
            0%, 100% { margin-bottom: 0; }
            50% { margin-bottom: 8px; }
        }
        @keyframes fab-dot-blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.2; }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .hero-copy h1 {
                font-size: 2.2rem;
            }
            .promo-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .download-grid,
            .tips-list,
            .notes-list {
                grid-template-columns: 1fr;
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.8rem;
            }
        }
        @media (max-width: 768px) {
            .nav-wrap {
                flex-wrap: nowrap;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: rgba(10, 46, 28, 0.98);
                flex-direction: column;
                padding: 1.5rem 20px;
                gap: 1.2rem;
                border-top: 1px solid var(--border-gold);
                box-shadow: 0 20px 40px rgba(0,0,0,0.5);
            }
            .main-nav.nav-open {
                display: flex;
            }
            .nav-toggle {
                display: inline-block;
            }
            .nav-actions {
                margin-left: auto;
            }
            .brand-logo {
                font-size: 1.1rem;
            }
            .hero {
                padding: 80px 0 60px;
            }
            .hero-copy h1 {
                font-size: 2rem;
            }
            .hero-floating-card {
                right: 0;
                bottom: -16px;
            }
            .promo-grid {
                grid-template-columns: 1fr;
            }
            .metrics-grid {
                flex-direction: column;
                gap: 1rem;
            }
            .metric {
                border-left: none;
                border-bottom: 1px solid var(--border-gold);
                padding-bottom: 0.8rem;
            }
            .section {
                padding: 60px 0;
            }
            .cta-box {
                padding: 2rem 1.2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 520px) {
            body {
                padding-top: 68px;
            }
            .nav-wrap {
                min-height: 68px;
            }
            .brand-logo {
                font-size: 1rem;
            }
            .btn {
                padding: 10px 18px;
                font-size: 0.85rem;
            }
            .hero-copy h1 {
                font-size: 1.7rem;
            }
            .hero-copy p {
                font-size: 0.95rem;
            }
            .hero-badges {
                gap: 0.5rem;
            }
            .hero-badges li {
                font-size: 0.8rem;
                padding: 6px 10px;
            }
            .section-heading h2 {
                font-size: 1.6rem;
            }
            .fab-gold {
                width: 52px;
                height: 52px;
                left: 14px;
                bottom: 80px;
                font-size: 1.3rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary-bg: #0A2E1C;
            --primary-bg-light: #123E25;
            --secondary-bg: #0F3520;
            --accent-gold: #FFD700;
            --accent-gold-soft: #FFE866;
            --accent-red: #D32F2F;
            --accent-red-dark: #B71C1C;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #8FADA2;
            --border-gold: rgba(255, 215, 0, 0.45);
            --border-gold-strong: rgba(255, 215, 0, 0.75);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.25);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.35);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.25);
            --shadow-gold-lg: 0 12px 40px rgba(255, 215, 0, 0.35);
            --font-body: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --font-display: 'Playfair Display', 'Be Vietnam Pro', serif;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.35s ease;
            --container-max: 1200px;
            --header-height: 78px;
        }

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

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

        body {
            font-family: var(--font-body);
            background: var(--primary-bg);
            color: var(--text-white);
            line-height: 1.65;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

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

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

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

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== HEADER / NAV ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-gold);
            min-height: var(--header-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-normal), box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            background: rgba(10, 46, 28, 0.98);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: nowrap;
            min-height: var(--header-height);
        }

        .brand-logo {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--accent-gold);
            letter-spacing: 0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
        }

        .brand-logo span {
            color: var(--text-mint);
            font-family: var(--font-body);
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        .brand-logo:hover {
            color: var(--accent-gold-soft);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: nowrap;
        }

        .main-nav a {
            color: var(--text-mint);
            font-weight: 500;
            font-size: 0.92rem;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast), color var(--transition-fast);
            white-space: nowrap;
        }

        .main-nav a:hover {
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
        }

        .main-nav a.active {
            background: rgba(255, 215, 0, 0.18);
            color: var(--accent-gold);
            font-weight: 700;
            box-shadow: inset 0 -2px 0 var(--accent-gold);
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 10px 22px;
            border-radius: 50px;
            transition: all var(--transition-normal);
            letter-spacing: 0.02em;
            text-align: center;
            line-height: 1.4;
        }

        .btn-ghost {
            background: transparent;
            color: var(--text-mint);
            border: 1px solid rgba(255, 215, 0, 0.5);
        }

        .btn-ghost:hover {
            background: rgba(255, 215, 0, 0.1);
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            transform: translateY(-2px);
        }

        .btn-solid {
            background: linear-gradient(135deg, var(--accent-gold) 0%, #FFC107 50%, var(--accent-gold) 100%);
            background-size: 200% 200%;
            color: #1a1a1a;
            font-weight: 700;
            box-shadow: 0 4px 18px rgba(255, 215, 0, 0.35);
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        .btn-solid:hover {
            background-position: 100% 100%;
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.5);
            transform: translateY(-2px);
            color: #1a1a1a;
        }

        .btn-solid:active {
            transform: translateY(0);
            box-shadow: 0 2px 10px rgba(255, 215, 0, 0.3);
        }

        .btn-danger {
            background: linear-gradient(135deg, var(--accent-red) 0%, #E53935 50%, var(--accent-red) 100%);
            color: #fff;
            font-weight: 700;
            box-shadow: 0 4px 18px rgba(211, 47, 47, 0.4);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .btn-danger:hover {
            box-shadow: 0 8px 28px rgba(211, 47, 47, 0.55);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-lg {
            padding: 14px 34px;
            font-size: 1rem;
            border-radius: 60px;
        }

        .btn-xl {
            padding: 16px 40px;
            font-size: 1.08rem;
            border-radius: 60px;
        }

        .nav-toggle {
            display: none;
            color: var(--accent-gold);
            font-size: 1.4rem;
            padding: 8px;
            background: rgba(255, 215, 0, 0.08);
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 215, 0, 0.3);
            transition: background var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            background: rgba(255, 215, 0, 0.18);
        }

        /* ===== HERO ===== */
        .hero-promo {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: calc(var(--header-height) + 30px) 0 60px;
            background-image: linear-gradient(rgba(10, 46, 28, 0.82), rgba(10, 46, 28, 0.92)), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .hero-promo::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 55%;
            height: 100%;
            background: radial-gradient(ellipse at center, rgba(255, 215, 0, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-promo::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 6px;
            background: linear-gradient(90deg, transparent 0%, var(--accent-gold) 30%, var(--accent-red) 50%, var(--accent-gold) 70%, transparent 100%);
        }

        .hero-promo-content {
            position: relative;
            z-index: 2;
        }

        .hero-sticker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent-red) 0%, #E53935 100%);
            color: #fff;
            font-weight: 700;
            font-size: 0.85rem;
            padding: 8px 18px;
            border-radius: 30px;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            box-shadow: 0 4px 16px rgba(211, 47, 47, 0.5);
            margin-bottom: 18px;
            animation: pulseSticker 2.4s ease-in-out infinite;
        }

        @keyframes pulseSticker {
            0%, 100% {
                box-shadow: 0 4px 16px rgba(211, 47, 47, 0.5);
            }
            50% {
                box-shadow: 0 8px 28px rgba(211, 47, 47, 0.75);
            }
        }

        .hero-promo h1 {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: clamp(2rem, 4.5vw, 3.2rem);
            color: var(--text-white);
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
            max-width: 700px;
        }

        .hero-promo h1 .gold-text {
            color: var(--accent-gold);
            display: block;
        }

        .hero-promo-description {
            font-size: 1.08rem;
            color: var(--text-mint);
            max-width: 620px;
            margin-bottom: 28px;
            line-height: 1.7;
        }

        .hero-promo-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
            margin-bottom: 20px;
        }

        .hero-countdown {
            display: flex;
            gap: 12px;
            align-items: center;
            flex-wrap: wrap;
            margin-top: 10px;
        }

        .hero-countdown-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .countdown-box {
            display: flex;
            gap: 8px;
            align-items: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 215, 0, 0.35);
            border-radius: var(--radius-md);
            padding: 10px 20px;
            backdrop-filter: blur(8px);
        }

        .countdown-item {
            text-align: center;
            min-width: 50px;
        }

        .countdown-number {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1;
            display: block;
        }

        .countdown-unit {
            font-size: 0.72rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .countdown-separator {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--accent-gold);
            line-height: 1;
        }

        .hero-promo-image {
            position: relative;
            z-index: 1;
        }

        .hero-promo-image img {
            border-radius: var(--radius-xl);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 0 2px rgba(255, 215, 0, 0.3);
            width: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        .hero-promo-image::after {
            content: '';
            position: absolute;
            bottom: -14px;
            left: 50%;
            transform: translateX(-50%);
            width: 80%;
            height: 40px;
            background: radial-gradient(ellipse, rgba(255, 215, 0, 0.35) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
            filter: blur(6px);
        }

        /* ===== SECTION GENERIC ===== */
        .section-padding {
            padding: 70px 0;
        }

        .section-padding-sm {
            padding: 45px 0;
        }

        .section-heading {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: clamp(1.6rem, 3vw, 2.3rem);
            color: var(--text-white);
            line-height: 1.25;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .section-subheading {
            font-size: 1.02rem;
            color: var(--text-mint);
            max-width: 680px;
            line-height: 1.7;
            margin-bottom: 36px;
        }

        .section-heading-left {
            text-align: left;
        }

        /* ===== STATS DASHBOARD ===== */
        .stats-dashboard {
            background: linear-gradient(180deg, var(--primary-bg) 0%, var(--primary-bg-light) 100%);
            border-top: 1px solid rgba(255, 215, 0, 0.15);
            border-bottom: 1px solid rgba(255, 215, 0, 0.15);
            position: relative;
        }

        .stats-dashboard::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.06;
            pointer-events: none;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
            z-index: 1;
        }

        .stat-item {
            text-align: left;
            padding: 20px 22px;
            background: rgba(18, 62, 37, 0.7);
            border: 1px solid rgba(255, 215, 0, 0.25);
            border-radius: var(--radius-md);
            transition: transform var(--transition-normal), box-shadow var(--transition-normal);
        }

        .stat-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-gold);
        }

        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.2;
            display: block;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-mint);
            font-weight: 500;
            margin-top: 4px;
        }

        /* ===== PROMO GRID ===== */
        .promo-section {
            background: var(--primary-bg);
        }

        .promo-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .promo-card {
            background: linear-gradient(145deg, var(--primary-bg-light) 0%, var(--secondary-bg) 100%);
            border: 1px solid rgba(255, 215, 0, 0.3);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
            display: flex;
            flex-direction: column;
        }

        .promo-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-gold-lg);
            border-color: var(--border-gold-strong);
        }

        .promo-card-image {
            position: relative;
            width: 100%;
            aspect-ratio: 16/9;
            overflow: hidden;
        }

        .promo-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-normal);
        }

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

        .promo-card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: linear-gradient(135deg, var(--accent-red) 0%, #E53935 100%);
            color: #fff;
            font-weight: 700;
            font-size: 0.78rem;
            padding: 6px 14px;
            border-radius: 30px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            box-shadow: 0 4px 14px rgba(211, 47, 47, 0.45);
        }

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

        .promo-card-title {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--text-white);
            margin-bottom: 8px;
            line-height: 1.3;
        }

        .promo-card-text {
            font-size: 0.92rem;
            color: var(--text-mint);
            line-height: 1.65;
            margin-bottom: 16px;
            flex: 1;
        }

        .promo-card-meta {
            display: flex;
            gap: 14px;
            align-items: center;
            flex-wrap: wrap;
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .promo-card-meta i {
            color: var(--accent-gold);
        }

        .promo-card-value {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1;
        }

        /* ===== COMPARISON ===== */
        .comparison-section {
            background: linear-gradient(180deg, var(--primary-bg-light) 0%, var(--primary-bg) 100%);
        }

        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .comparison-card {
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            transition: transform var(--transition-normal), box-shadow var(--transition-normal);
        }

        .comparison-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .comparison-card.before {
            background: rgba(255, 255, 255, 0.04);
            border-color: rgba(255, 255, 255, 0.15);
        }

        .comparison-card.after {
            background: rgba(255, 215, 0, 0.07);
            border-color: var(--border-gold);
        }

        .comparison-title {
            font-weight: 800;
            font-size: 1.2rem;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-white);
        }

        .comparison-title i {
            font-size: 1.3rem;
        }

        .comparison-card.before .comparison-title i {
            color: var(--text-muted);
        }

        .comparison-card.after .comparison-title i {
            color: var(--accent-gold);
        }

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

        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: 0.95rem;
            color: var(--text-mint);
            line-height: 1.6;
        }

        .comparison-list li i {
            margin-top: 4px;
            flex-shrink: 0;
        }

        .comparison-card.before .comparison-list li i {
            color: #E57373;
        }

        .comparison-card.after .comparison-list li i {
            color: var(--accent-gold);
        }

        /* ===== FORM CTA ===== */
        .cta-form-section {
            background: linear-gradient(135deg, var(--primary-bg) 0%, var(--primary-bg-light) 50%, #0D3A22 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-form-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-form-wrapper {
            background: rgba(18, 62, 37, 0.85);
            border: 1px solid rgba(255, 215, 0, 0.4);
            border-radius: var(--radius-xl);
            padding: 40px 38px;
            backdrop-filter: blur(12px);
            position: relative;
            z-index: 1;
            max-width: 780px;
        }

        .cta-form-title {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--text-white);
            margin-bottom: 8px;
            line-height: 1.25;
        }

        .cta-form-text {
            font-size: 1rem;
            color: var(--text-mint);
            margin-bottom: 24px;
        }

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

        .cta-form-input {
            flex: 1;
            min-width: 220px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 215, 0, 0.35);
            border-radius: 50px;
            padding: 14px 22px;
            color: var(--text-white);
            font-size: 0.95rem;
            font-weight: 500;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            font-family: var(--font-body);
        }

        .cta-form-input::placeholder {
            color: var(--text-muted);
        }

        .cta-form-input:focus {
            border-color: var(--accent-gold);
            box-shadow: 0 0 0 4px rgba(255, 215, 0, 0.15);
            outline: none;
        }

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

        .faq-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            border: 1px solid rgba(255, 215, 0, 0.25);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-white);
            background: rgba(18, 62, 37, 0.6);
            transition: background var(--transition-fast);
            text-align: left;
            width: 100%;
        }

        .faq-question:hover {
            background: rgba(18, 62, 37, 0.9);
        }

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

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-normal);
            background: rgba(10, 46, 28, 0.5);
        }

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

        .faq-answer p {
            padding: 16px 22px 20px;
            margin: 0;
            font-size: 0.92rem;
            color: var(--text-mint);
            line-height: 1.7;
        }

        /* ===== FAB ===== */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(145deg, #1a1a1a 0%, #2d2d2d 100%);
            border: 2px solid var(--accent-gold);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.3rem;
            transition: all var(--transition-normal);
            opacity: 0.7;
            animation: fabFloat 3s ease-in-out infinite;
            cursor: pointer;
            text-decoration: none;
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(255, 215, 0, 0.55);
            color: var(--accent-gold-soft);
            animation-play-state: paused;
        }

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

        .fab-notification {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            background: var(--accent-red);
            border-radius: 50%;
            border: 2px solid #fff;
            animation: blinkDot 1.8s ease-in-out infinite;
        }

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

        @keyframes blinkDot {
            0%, 100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.4;
                transform: scale(0.85);
            }
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: #081F13;
            border-top: 1px solid rgba(255, 215, 0, 0.25);
            padding: 50px 0 30px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand .brand-logo {
            font-size: 1.1rem;
            margin-bottom: 12px;
            display: inline-block;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .footer-heading {
            font-size: 1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            color: var(--text-mint);
            font-size: 0.9rem;
            transition: color var(--transition-fast), padding-left var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--accent-gold);
            padding-left: 4px;
        }

        .footer-license p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-license i {
            color: var(--accent-gold);
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            text-align: center;
        }

        .copyright p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin: 0;
        }

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

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

        @media (max-width: 768px) {
            .nav-wrap {
                flex-wrap: nowrap;
                gap: 12px;
            }

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

            .brand-logo span {
                font-size: 0.72rem;
            }

            .main-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                width: 100%;
                background: rgba(10, 46, 28, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
                padding: 12px 20px;
                border-bottom: 1px solid var(--border-gold);
                box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
                display: none;
                z-index: 99;
            }

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

            .main-nav a {
                padding: 12px 16px;
                font-size: 1rem;
                border-radius: var(--radius-sm);
            }

            .nav-actions {
                gap: 6px;
            }

            .btn {
                font-size: 0.78rem;
                padding: 8px 14px;
                white-space: nowrap;
            }

            .nav-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
                width: 42px;
                height: 42px;
            }

            .hero-promo {
                min-height: auto;
                padding: calc(var(--header-height) + 24px) 0 50px;
            }

            .hero-promo h1 {
                font-size: 1.8rem;
            }

            .hero-promo-description {
                font-size: 0.95rem;
            }

            .hero-promo-image {
                margin-top: 28px;
            }

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

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

            .cta-form-wrapper {
                padding: 28px 20px;
            }

            .cta-form-title {
                font-size: 1.4rem;
            }

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

            .section-padding {
                padding: 50px 0;
            }

            .countdown-box {
                padding: 8px 14px;
            }

            .countdown-number {
                font-size: 1.2rem;
            }

            .stat-number {
                font-size: 1.7rem;
            }

            .fab {
                width: 48px;
                height: 48px;
                font-size: 1.1rem;
                left: 12px;
                bottom: 84px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }

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

            .brand-logo span {
                display: none;
            }

            .btn {
                font-size: 0.72rem;
                padding: 7px 10px;
                border-radius: 40px;
            }

            .nav-actions {
                gap: 4px;
            }

            .btn-ghost {
                padding: 7px 10px;
            }

            .hero-promo {
                padding-top: calc(var(--header-height) + 16px);
                padding-bottom: 36px;
            }

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

            .hero-sticker {
                font-size: 0.72rem;
                padding: 6px 12px;
            }

            .hero-promo-description {
                font-size: 0.9rem;
                margin-bottom: 20px;
            }

            .hero-countdown {
                gap: 8px;
            }

            .countdown-box {
                gap: 4px;
                padding: 6px 10px;
            }

            .countdown-number {
                font-size: 1rem;
            }

            .countdown-unit {
                font-size: 0.65rem;
            }

            .countdown-separator {
                font-size: 1rem;
            }

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

            .promo-card-title {
                font-size: 1.1rem;
            }

            .comparison-card {
                padding: 22px 18px;
            }

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

            .cta-form-input {
                min-width: 100%;
            }

            .stats-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .stat-item {
                padding: 16px 18px;
            }

            .section-padding {
                padding: 40px 0;
            }

            .section-heading {
                font-size: 1.4rem;
            }

            .footer-grid {
                gap: 20px;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-tertiary: #0B3521;
            --bg-card: rgba(255, 255, 255, 0.04);
            --bg-card-hover: rgba(255, 255, 255, 0.07);
            --accent-gold: #FFD700;
            --accent-gold-soft: #FFE566;
            --accent-gold-deep: #E6B800;
            --accent-red: #D32F2F;
            --accent-red-soft: #E53935;
            --text-primary: #FFFFFF;
            --text-secondary: #D1F2EB;
            --text-muted: #8FBFB2;
            --text-light: #6E9F94;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-gold-strong: rgba(255, 215, 0, 0.6);
            --border-dark: rgba(255, 255, 255, 0.08);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 26px;
            --radius-full: 9999px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.12);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.2);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.3);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.15);
            --shadow-gold-lg: 0 8px 36px rgba(255, 215, 0, 0.25);
            --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-base: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.45s cubic-bezier(0.4, 0, 0.2, 1);
            --font-primary: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1180px;
            --nav-height: 72px;
        }

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

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

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

        body::before {
            content: '';
            position: fixed;
            inset: 0;
            background: radial-gradient(ellipse at 20% 10%, rgba(255, 215, 0, 0.05) 0%, transparent 55%),
                        radial-gradient(ellipse at 85% 85%, rgba(211, 47, 47, 0.04) 0%, transparent 50%),
                        radial-gradient(ellipse at 50% 50%, rgba(18, 62, 37, 0.9) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

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

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

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

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

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

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

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            position: relative;
            z-index: 1;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--nav-height);
            z-index: 100;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-dark);
            transition: background var(--transition-base), border-color var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(8, 38, 22, 0.97);
            border-bottom-color: var(--border-gold);
            box-shadow: var(--shadow-md);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 24px;
        }

        .brand-logo {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 4px;
            text-decoration: none;
            transition: opacity var(--transition-fast);
        }

        .brand-logo span {
            color: var(--accent-gold);
            font-weight: 700;
            font-size: 0.85em;
        }

        .brand-logo:hover {
            opacity: 0.85;
            color: var(--text-primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }

        .main-nav a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-full);
            text-decoration: none;
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

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

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

        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 600;
            border-radius: var(--radius-full);
            text-decoration: none;
            transition: all var(--transition-base);
            cursor: pointer;
            border: 1.5px solid transparent;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .btn:active {
            transform: translateY(1px);
        }

        .btn-ghost {
            background: transparent;
            color: var(--text-secondary);
            border-color: rgba(255, 255, 255, 0.25);
        }

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

        .btn-solid {
            background: linear-gradient(135deg, #FFE566 0%, var(--accent-gold) 40%, var(--accent-gold-deep) 100%);
            color: #0A2E1C;
            font-weight: 700;
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-gold);
        }

        .btn-solid:hover {
            box-shadow: var(--shadow-gold-lg);
            transform: translateY(-2px);
            color: #0A2E1C;
        }

        .btn-outline-gold {
            background: transparent;
            color: var(--accent-gold);
            border-color: var(--border-gold-strong);
            font-weight: 600;
        }

        .btn-outline-gold:hover {
            background: rgba(255, 215, 0, 0.1);
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold);
        }

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

        .btn-danger {
            background: linear-gradient(135deg, var(--accent-red-soft) 0%, var(--accent-red) 100%);
            color: #fff;
            border-color: var(--accent-red);
            box-shadow: 0 4px 18px rgba(211, 47, 47, 0.3);
        }

        .btn-danger:hover {
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(211, 47, 47, 0.4);
        }

        .nav-toggle {
            display: none;
            font-size: 1.6rem;
            color: var(--text-primary);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* ========== PAGE HERO (Article) ========== */
        .page-hero {
            padding-top: calc(var(--nav-height) + 48px);
            padding-bottom: 48px;
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 0%, var(--bg-primary) 95%);
            z-index: 0;
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

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

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

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

        .breadcrumb .current {
            color: var(--text-secondary);
            font-weight: 500;
        }

        .article-hero-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr;
            gap: 36px;
            align-items: start;
        }

        .article-hero-left {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

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

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            font-size: 0.78rem;
            font-weight: 600;
            border-radius: var(--radius-full);
            letter-spacing: 0.02em;
            border: 1px solid transparent;
        }

        .badge-gold {
            background: rgba(255, 215, 0, 0.12);
            color: var(--accent-gold);
            border-color: var(--border-gold);
        }

        .badge-green {
            background: rgba(76, 175, 80, 0.15);
            color: #81C784;
            border-color: rgba(76, 175, 80, 0.35);
        }

        .badge-red {
            background: rgba(211, 47, 47, 0.15);
            color: #EF5350;
            border-color: rgba(211, 47, 47, 0.4);
        }

        .article-hero-left h1 {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            margin-bottom: 0;
        }

        .article-hero-left .article-summary {
            font-size: 1.05rem;
            line-height: 1.65;
            color: var(--text-secondary);
            max-width: 620px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-muted);
            padding-top: 6px;
            border-top: 1px solid var(--border-dark);
        }

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

        .article-meta i {
            color: var(--accent-gold);
            font-size: 0.9rem;
        }

        .article-meta a {
            color: var(--accent-gold);
            font-weight: 500;
        }

        .article-hero-right {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .data-panel {
            background: linear-gradient(155deg, rgba(18, 62, 37, 0.95) 0%, rgba(10, 46, 28, 0.98) 100%);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-lg);
        }

        .data-panel-title {
            font-size: 0.85rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-gold);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .data-panel-title i {
            font-size: 1rem;
        }

        .data-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-dark);
            gap: 12px;
        }

        .data-row:last-child {
            border-bottom: none;
        }

        .data-row-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .data-row-label i {
            color: var(--accent-gold);
            font-size: 0.85rem;
            width: 16px;
        }

        .data-row-value {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            text-align: right;
            white-space: nowrap;
        }

        .data-row-value .gold {
            color: var(--accent-gold);
        }

        .live-pulse {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.78rem;
            font-weight: 600;
            color: #81C784;
        }

        .live-pulse .pulse-dot {
            width: 7px;
            height: 7px;
            background: #4CAF50;
            border-radius: 50%;
            animation: pulseDot 1.6s ease-in-out infinite;
        }

        @keyframes pulseDot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(1.5); }
        }

        /* ========== ARTICle Body ========== */
        .article-main {
            padding: 36px 0 60px;
            position: relative;
            z-index: 1;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 36px;
            align-items: start;
        }

        .article-body {
            font-size: 1.02rem;
            line-height: 1.7;
            color: var(--text-secondary);
        }

        .article-body h2 {
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 28px 0 14px;
            line-height: 1.3;
            letter-spacing: -0.01em;
        }

        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--accent-gold-soft);
            margin: 22px 0 10px;
            line-height: 1.35;
        }

        .article-body p {
            margin-bottom: 14px;
        }

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

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

        .article-body ul, .article-body ol {
            margin: 12px 0 18px 22px;
            color: var(--text-secondary);
        }

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

        .article-body img {
            border-radius: var(--radius-md);
            margin: 18px 0;
            box-shadow: var(--shadow-md);
        }

        .article-body blockquote {
            background: rgba(255, 215, 0, 0.06);
            border-left: 3px solid var(--accent-gold);
            padding: 16px 20px;
            margin: 20px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-secondary);
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 18px 0;
            font-size: 0.9rem;
        }

        .article-body th, .article-body td {
            padding: 10px 14px;
            text-align: left;
            border-bottom: 1px solid var(--border-dark);
            color: var(--text-secondary);
        }

        .article-body th {
            font-weight: 600;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.06);
        }

        .no-content {
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-dark);
        }

        .no-content i {
            font-size: 3rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            display: block;
        }

        .no-content p {
            font-size: 1.15rem;
            color: var(--text-muted);
            margin-bottom: 18px;
        }

        .no-content .btn {
            margin-top: 8px;
        }

        /* Article Sidebar */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
            position: sticky;
            top: calc(var(--nav-height) + 20px);
        }

        .sidebar-card {
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: all var(--transition-base);
        }

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

        .sidebar-card-title {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 0.02em;
        }

        .sidebar-card-title i {
            font-size: 0.9rem;
        }

        .sidebar-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .sidebar-list a {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--text-secondary);
            padding: 6px 8px;
            border-radius: var(--radius-sm);
            text-decoration: none;
            transition: all var(--transition-fast);
        }

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

        .sidebar-list a i {
            font-size: 0.75rem;
            color: var(--accent-gold);
        }

        .sidebar-cta {
            background: linear-gradient(155deg, rgba(255, 215, 0, 0.12) 0%, rgba(255, 215, 0, 0.04) 100%);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: center;
        }

        .sidebar-cta h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 8px;
        }

        .sidebar-cta p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 14px;
            line-height: 1.5;
        }

        /* ========== Section Common ========== */
        .section-block {
            padding: 50px 0;
            position: relative;
            z-index: 1;
        }

        .section-block.alt-bg {
            background: var(--bg-tertiary);
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
        }

        .section-heading {
            margin-bottom: 30px;
            max-width: 680px;
        }

        .section-heading h2 {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin-bottom: 10px;
        }

        .section-heading p {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .section-heading.left {
            text-align: left;
        }

        /* ========== Metrics Dashboard ========== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .metric-card {
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), transparent);
            opacity: 0;
            transition: opacity var(--transition-base);
        }

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

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

        .metric-icon {
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 215, 0, 0.12);
            border-radius: var(--radius-sm);
            font-size: 1.25rem;
            color: var(--accent-gold);
            margin-bottom: 4px;
        }

        .metric-value {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.2;
            letter-spacing: -0.01em;
        }

        .metric-value .unit {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-muted);
        }

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

        .metric-trend {
            font-size: 0.8rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .metric-trend.up {
            color: #81C784;
        }

        .metric-trend.down {
            color: #EF5350;
        }

        /* ========== Service Matrix / Offer Cards ========== */
        .offer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .offer-card {
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: 26px 22px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .offer-card::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -50%;
            width: 180px;
            height: 180px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.08) 0%, transparent 65%);
            border-radius: 50%;
            transition: all var(--transition-slow);
            pointer-events: none;
        }

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

        .offer-card:hover::after {
            transform: scale(1.3);
        }

        .offer-card-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
        }

        .offer-badge {
            font-size: 0.72rem;
            font-weight: 700;
            padding: 5px 12px;
            border-radius: var(--radius-full);
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        .offer-badge.hot {
            background: rgba(211, 47, 47, 0.15);
            color: #EF5350;
            border: 1px solid rgba(211, 47, 47, 0.4);
        }

        .offer-badge.new {
            background: rgba(255, 215, 0, 0.12);
            color: var(--accent-gold);
            border: 1px solid var(--border-gold);
        }

        .offer-badge.limit {
            background: rgba(76, 175, 80, 0.15);
            color: #81C784;
            border: 1px solid rgba(76, 175, 80, 0.35);
        }

        .offer-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.35;
            margin: 0;
        }

        .offer-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.55;
            flex: 1;
            margin: 0;
        }

        .offer-card .offer-value {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--accent-gold);
            letter-spacing: -0.01em;
        }

        .offer-card .btn {
            align-self: flex-start;
            margin-top: 4px;
            padding: 9px 18px;
            font-size: 0.85rem;
        }

        /* ========== Comparison Table ========== */
        .comparison-wrap {
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin: 0;
        }

        .comparison-table th, .comparison-table td {
            padding: 16px 18px;
            text-align: left;
            border-bottom: 1px solid var(--border-dark);
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        .comparison-table th {
            background: rgba(255, 215, 0, 0.07);
            font-weight: 700;
            color: var(--accent-gold);
            font-size: 0.85rem;
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }

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

        .comparison-table tr:hover td {
            background: rgba(255, 255, 255, 0.02);
        }

        .comparison-table .positive {
            color: #81C784;
            font-weight: 600;
        }

        .comparison-table .negative {
            color: #EF5350;
            font-weight: 600;
        }

        .comparison-table .neutral {
            color: var(--text-muted);
        }

        .comparison-table td:first-child {
            font-weight: 600;
            color: var(--text-primary);
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 760px;
        }

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

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            padding: 18px 20px;
            cursor: pointer;
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-primary);
            user-select: none;
            transition: color var(--transition-fast);
            background: none;
            width: 100%;
            text-align: left;
        }

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

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

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

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

        /* ========== CTA Form ========== */
        .cta-section {
            padding: 60px 0;
            position: relative;
            z-index: 1;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }

        .cta-panel {
            background: linear-gradient(155deg, rgba(18, 62, 37, 0.97) 0%, rgba(10, 46, 28, 0.98) 100%);
            border: 1px solid var(--border-gold-strong);
            border-radius: var(--radius-xl);
            padding: 40px;
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 36px;
            align-items: center;
            box-shadow: var(--shadow-lg);
            position: relative;
            z-index: 1;
        }

        .cta-left h2 {
            font-size: 1.65rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.3;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .cta-left p {
            font-size: 0.98rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .cta-benefits {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 18px;
        }

        .cta-benefit {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--accent-gold);
        }

        .cta-benefit i {
            font-size: 0.9rem;
        }

        .cta-form {
            background: rgba(0, 0, 0, 0.3);
            border-radius: var(--radius-md);
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .cta-form label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 2px;
        }

        .cta-form input, .cta-form select {
            width: 100%;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 0.92rem;
            transition: all var(--transition-fast);
            -webkit-appearance: none;
            appearance: none;
        }

        .cta-form input::placeholder {
            color: var(--text-light);
        }

        .cta-form input:focus, .cta-form select:focus {
            border-color: var(--border-gold);
            background: rgba(255, 255, 255, 0.08);
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
        }

        .cta-form select {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23FFD700' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 38px;
        }

        .cta-form select option {
            background: var(--bg-secondary);
            color: var(--text-primary);
        }

        .cta-form .btn {
            width: 100%;
            margin-top: 4px;
        }

        .cta-form .form-note {
            font-size: 0.75rem;
            color: var(--text-muted);
            text-align: center;
            margin: 0;
        }

        /* ========== FAB ========== */
        .fab-float {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 90;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(155deg, #1A1A1A 0%, #0B0B0B 100%);
            border: 2px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3), 0 0 0 1px rgba(255, 215, 0, 0.15) inset;
            transition: all var(--transition-base);
            opacity: 0.7;
            animation: fabBreathe 2.8s ease-in-out infinite;
            text-decoration: none;
        }

        .fab-float:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 6px 28px rgba(255, 215, 0, 0.45);
            animation-play-state: paused;
        }

        .fab-float:active {
            transform: scale(0.95) translateY(2px);
            animation-play-state: paused;
        }

        .fab-float i {
            font-size: 1.5rem;
            color: var(--accent-gold);
            transition: transform var(--transition-base);
        }

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

        .fab-notify {
            position: absolute;
            top: 4px;
            right: 4px;
            width: 11px;
            height: 11px;
            background: #E53935;
            border-radius: 50%;
            border: 2px solid #0A2E1C;
            animation: notifyBlink 1.8s ease-in-out infinite;
        }

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

        @keyframes fabBreathe {
            0%, 100% { transform: translateY(0); opacity: 0.7; }
            50% { transform: translateY(-6px); opacity: 0.9; }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #072618;
            border-top: 1px solid var(--border-dark);
            padding: 50px 0 24px;
            position: relative;
            z-index: 1;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand .brand-logo {
            font-size: 1.15rem;
            margin-bottom: 12px;
            display: inline-flex;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            max-width: 360px;
        }

        .footer-heading {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 14px;
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            font-size: 0.88rem;
            color: var(--text-secondary);
            text-decoration: none;
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-links a:hover {
            color: var(--accent-gold);
            transform: translateX(3px);
        }

        .footer-license p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-license i {
            color: var(--accent-gold);
            font-size: 0.85rem;
            width: 16px;
            text-align: center;
        }

        .copyright {
            padding-top: 20px;
            border-top: 1px solid var(--border-dark);
            text-align: center;
        }

        .copyright p {
            font-size: 0.8rem;
            color: var(--text-light);
            margin: 0;
        }

        /* ========== MOBILE / RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .article-hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

            .article-sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }

            .sidebar-card, .sidebar-cta {
                flex: 1 1 220px;
            }

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

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

            .cta-panel {
                grid-template-columns: 1fr;
                gap: 28px;
                padding: 30px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 62px;
            }

            .container {
                padding: 0 16px;
            }

            .nav-wrap {
                gap: 12px;
            }

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

            .brand-logo span {
                font-size: 0.75em;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(8, 38, 22, 0.98);
                backdrop-filter: blur(18px);
                -webkit-backdrop-filter: blur(18px);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 1px solid var(--border-gold);
                box-shadow: var(--shadow-lg);
            }

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

            .main-nav a {
                width: 100%;
                text-align: center;
                padding: 12px 16px;
            }

            .nav-toggle {
                display: block;
            }

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

            .article-hero-left h1 {
                font-size: 1.55rem;
            }

            .article-hero-left .article-summary {
                font-size: 0.95rem;
            }

            .article-meta {
                gap: 12px;
                font-size: 0.78rem;
                flex-wrap: wrap;
            }

            .data-panel {
                padding: 18px;
            }

            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .metric-card {
                padding: 16px;
            }

            .metric-value {
                font-size: 1.35rem;
            }

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

            .comparison-table th, .comparison-table td {
                padding: 10px 12px;
                font-size: 0.8rem;
            }

            .comparison-table {
                font-size: 0.8rem;
            }

            .section-heading h2 {
                font-size: 1.4rem;
            }

            .cta-panel {
                padding: 22px;
                border-radius: var(--radius-lg);
            }

            .cta-left h2 {
                font-size: 1.3rem;
            }

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

            .article-sidebar {
                flex-direction: column;
            }

            .sidebar-card, .sidebar-cta {
                flex: 1 1 auto;
            }

            .fab-float {
                width: 48px;
                height: 48px;
                left: 12px;
                bottom: 80px;
            }

            .fab-float i {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 520px) {
            .nav-actions {
                gap: 6px;
            }

            .nav-actions .btn {
                padding: 7px 12px;
                font-size: 0.75rem;
            }

            .nav-actions .btn-ghost {
                padding: 7px 10px;
            }

            .brand-logo {
                font-size: 0.85rem;
            }

            .brand-logo span {
                font-size: 0.7em;
            }

            .article-hero-left h1 {
                font-size: 1.3rem;
                line-height: 1.35;
            }

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

            .metrics-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .metric-card {
                padding: 14px;
                flex-direction: row;
                align-items: center;
                gap: 12px;
            }

            .metric-icon {
                width: 36px;
                height: 36px;
                font-size: 1rem;
                margin-bottom: 0;
                flex-shrink: 0;
            }

            .metric-value {
                font-size: 1.2rem;
                flex-shrink: 0;
            }

            .metric-label {
                font-size: 0.78rem;
            }

            .cta-panel {
                padding: 18px;
            }

            .cta-form {
                padding: 18px;
            }

            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }

            .faq-answer p {
                font-size: 0.85rem;
            }

            .container {
                padding: 0 12px;
            }

            .section-block {
                padding: 36px 0;
            }

            .article-main {
                padding: 24px 0 40px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-deep: #0A2E1C;
            --bg-forest: #123E25;
            --bg-card: #0E3521;
            --bg-card-hover: #163F2A;
            --primary-gold: #FFD700;
            --gold-light: #FFE566;
            --gold-shine: #FFF2B2;
            --lucky-red: #D32F2F;
            --red-deep: #B71C1C;
            --text-white: #FFFFFF;
            --text-pale: #D1F2EB;
            --text-muted: #8FB7A6;
            --border-gold: rgba(255, 215, 0, 0.3);
            --border-gold-strong: rgba(255, 215, 0, 0.6);
            --shadow-gold: 0 8px 32px rgba(255, 215, 0, 0.15);
            --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.4);
            --shadow-hover: 0 20px 50px rgba(255, 215, 0, 0.25);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --font-family: 'Be Vietnam Pro', system-ui, -apple-system, sans-serif;
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            --container-width: 1200px;
            --section-padding: 5rem 0;
            --hero-padding: 7rem 0 5rem;
        }

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

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

        body {
            font-family: var(--font-family);
            background: var(--bg-deep);
            color: var(--text-white);
            line-height: 1.65;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
        }

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

        a {
            color: var(--primary-gold);
            text-decoration: none;
            transition: color var(--transition-base), opacity var(--transition-base);
        }

        a:hover,
        a:focus {
            color: var(--gold-light);
            text-decoration: none;
        }

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

        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        /* Header */
        .site-header {
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-gold);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            flex-wrap: nowrap;
        }

        .brand-logo {
            font-size: 1.25rem;
            font-weight: 900;
            color: var(--primary-gold);
            letter-spacing: -0.02em;
            white-space: nowrap;
            line-height: 1.2;
            display: inline-flex;
            flex-direction: column;
        }

        .brand-logo span {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--text-pale);
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            flex-wrap: wrap;
        }

        .main-nav a {
            color: var(--text-pale);
            font-weight: 500;
            font-size: 0.9rem;
            padding: 0.55rem 1rem;
            border-radius: 6rem;
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .main-nav a:hover,
        .main-nav a:focus {
            color: var(--primary-gold);
            background: rgba(255, 215, 0, 0.08);
        }

        .main-nav a.active {
            color: var(--bg-deep);
            background: linear-gradient(135deg, var(--primary-gold) 0%, var(--gold-light) 100%);
            font-weight: 700;
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.3);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 0.6rem 1.4rem;
            border-radius: 6rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.01em;
            white-space: nowrap;
            min-height: 42px;
        }

        .btn-ghost {
            background: transparent;
            color: var(--primary-gold);
            border: 1.5px solid var(--border-gold-strong);
        }

        .btn-ghost:hover,
        .btn-ghost:focus {
            background: rgba(255, 215, 0, 0.12);
            border-color: var(--primary-gold);
            color: var(--gold-light);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.2);
        }

        .btn-solid {
            background: linear-gradient(135deg, var(--primary-gold) 0%, #FFC400 100%);
            color: var(--bg-deep);
            font-weight: 700;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.35);
        }

        .btn-solid:hover,
        .btn-solid:focus {
            background: linear-gradient(135deg, var(--gold-light) 0%, var(--primary-gold) 100%);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.45);
            color: var(--bg-deep);
        }

        .btn-solid:active,
        .btn-ghost:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(255, 215, 0, 0.2);
        }

        .btn-large {
            padding: 0.9rem 2.2rem;
            font-size: 1rem;
            min-height: 52px;
        }

        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255, 255, 255, 0.25);
        }

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

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1.5px solid var(--border-gold);
            color: var(--primary-gold);
            font-size: 1.25rem;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            cursor: pointer;
            transition: all var(--transition-base);
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .nav-toggle:hover,
        .nav-toggle:focus {
            background: rgba(255, 215, 0, 0.1);
            border-color: var(--primary-gold);
        }

        /* Hero */
        .hero-section {
            position: relative;
            background-image: linear-gradient(180deg, rgba(10, 46, 28, 0.85) 0%, rgba(10, 46, 28, 0.95) 40%, var(--bg-deep) 100%), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center center;
            background-repeat: no-repeat;
            min-height: 600px;
            display: flex;
            align-items: center;
            padding: var(--hero-padding);
            border-bottom: 2px solid var(--border-gold);
            position: relative;
            overflow: hidden;
        }

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

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 650px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(211, 47, 47, 0.2);
            border: 1px solid rgba(211, 47, 47, 0.5);
            color: #FF8A80;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            padding: 0.5rem 1.2rem;
            border-radius: 6rem;
            margin-bottom: 1.5rem;
        }

        .hero-badge i {
            font-size: 0.9rem;
        }

        .hero-title {
            font-size: 3.2rem;
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -0.03em;
            color: var(--text-white);
            margin: 0 0 1.5rem;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, var(--primary-gold) 0%, var(--gold-light) 60%, #FFDD44 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: var(--primary-gold);
        }

        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-pale);
            line-height: 1.7;
            margin: 0 0 2rem;
            max-width: 540px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
            flex-wrap: wrap;
            margin-bottom: 2rem;
        }

        .hero-stats {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
            border-top: 1px solid var(--border-gold);
            padding-top: 1.5rem;
            margin-top: 0.5rem;
        }

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

        .hero-stat-value {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary-gold);
            letter-spacing: -0.02em;
        }

        .hero-stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            font-weight: 500;
            letter-spacing: 0.03em;
        }

        .hero-image-wrapper {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-poster {
            width: 100%;
            max-width: 420px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5), 0 0 0 2px var(--border-gold);
            position: relative;
        }

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

        .hero-poster::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 40%;
            background: linear-gradient(180deg, transparent 0%, rgba(10, 46, 28, 0.7) 100%);
            pointer-events: none;
        }

        .hot-badge-float {
            position: absolute;
            top: 16px;
            right: 16px;
            background: var(--lucky-red);
            color: white;
            font-weight: 800;
            font-size: 0.75rem;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            padding: 0.5rem 1.1rem;
            border-radius: 6rem;
            box-shadow: 0 4px 16px rgba(211, 47, 47, 0.5);
            z-index: 3;
            animation: pulse-badge 2s ease-in-out infinite;
        }

        @keyframes pulse-badge {
            0%, 100% { box-shadow: 0 4px 16px rgba(211, 47, 47, 0.5); }
            50% { box-shadow: 0 4px 28px rgba(211, 47, 47, 0.8), 0 0 20px rgba(211, 47, 47, 0.4); }
        }

        /* Section common */
        .section {
            padding: var(--section-padding);
        }

        .section-alt {
            background: var(--bg-forest);
            border-top: 1px solid rgba(255, 215, 0, 0.08);
            border-bottom: 1px solid rgba(255, 215, 0, 0.08);
        }

        .section-header {
            margin-bottom: 3rem;
        }

        .section-eyebrow {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--primary-gold);
            margin-bottom: 0.8rem;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.25;
            color: var(--text-white);
            margin: 0 0 1rem;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-pale);
            line-height: 1.7;
            max-width: 640px;
            margin: 0;
        }

        /* Metrics board */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
        }

        .metric-card {
            background: linear-gradient(160deg, rgba(255, 215, 0, 0.06) 0%, rgba(255, 215, 0, 0.02) 100%);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 1.75rem 1.5rem;
            text-align: left;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary-gold) 0%, transparent 100%);
            opacity: 0;
            transition: opacity var(--transition-base);
        }

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

        .metric-card:hover {
            background: linear-gradient(160deg, rgba(255, 215, 0, 0.1) 0%, rgba(255, 215, 0, 0.04) 100%);
            border-color: var(--border-gold-strong);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .metric-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(255, 215, 0, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-gold);
            font-size: 1.2rem;
            margin-bottom: 1rem;
        }

        .metric-value {
            font-size: 2rem;
            font-weight: 900;
            color: var(--primary-gold);
            letter-spacing: -0.02em;
            line-height: 1.1;
            margin-bottom: 0.4rem;
        }

        .metric-label {
            font-size: 0.85rem;
            color: var(--text-pale);
            font-weight: 500;
            letter-spacing: 0.02em;
            margin: 0;
        }

        .metric-trend {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            font-size: 0.75rem;
            font-weight: 600;
            color: #4CAF50;
            margin-top: 0.5rem;
        }

        /* Service matrix */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }

        .service-card {
            background: var(--bg-card);
            border: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: var(--radius-lg);
            padding: 2rem;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

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

        .service-card-header {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 0.5rem;
        }

        .service-icon-wrapper {
            width: 52px;
            height: 52px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.15) 0%, rgba(255, 215, 0, 0.05) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-gold);
            font-size: 1.5rem;
            flex-shrink: 0;
            border: 1px solid var(--border-gold);
        }

        .service-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-white);
            margin: 0;
            letter-spacing: -0.01em;
        }

        .service-card p {
            color: var(--text-pale);
            font-size: 0.95rem;
            line-height: 1.7;
            margin: 0;
        }

        .service-steps {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .service-steps li {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            color: var(--text-pale);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .service-steps li i {
            color: var(--primary-gold);
            margin-top: 0.2rem;
            flex-shrink: 0;
        }

        /* Comparison */
        .comparison-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            align-items: stretch;
        }

        .comparison-col {
            border-radius: var(--radius-lg);
            padding: 2rem;
            transition: all var(--transition-base);
        }

        .comparison-before {
            background: rgba(211, 47, 47, 0.08);
            border: 1px solid rgba(211, 47, 47, 0.3);
        }

        .comparison-after {
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid var(--border-gold-strong);
            box-shadow: var(--shadow-gold);
        }

        .comparison-col h3 {
            font-size: 1.3rem;
            font-weight: 800;
            margin: 0 0 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
            letter-spacing: -0.01em;
        }

        .comparison-before h3 {
            color: #FF8A80;
        }

        .comparison-after h3 {
            color: var(--primary-gold);
        }

        .comparison-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            font-size: 0.95rem;
            line-height: 1.6;
            color: var(--text-pale);
        }

        .comparison-list li i {
            margin-top: 0.25rem;
            flex-shrink: 0;
        }

        .comparison-before .comparison-list li i {
            color: #FF5252;
        }

        .comparison-after .comparison-list li i {
            color: var(--primary-gold);
        }

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

        .faq-item {
            background: var(--bg-card);
            border: 1px solid rgba(255, 215, 0, 0.15);
            border-radius: var(--radius-md);
            margin-bottom: 0.75rem;
            transition: all var(--transition-base);
            overflow: hidden;
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.25rem 1.5rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-white);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: all var(--transition-base);
            letter-spacing: 0.01em;
        }

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

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

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 1.5rem;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 1.5rem 1.5rem;
        }

        .faq-answer p {
            color: var(--text-pale);
            font-size: 0.9rem;
            line-height: 1.7;
            margin: 0;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #0A2E1C 0%, #123E25 50%, #0D3520 100%);
            border-top: 2px solid var(--border-gold);
            padding: 4rem 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.08) 0%, transparent 60%);
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-title {
            font-size: 2rem;
            font-weight: 900;
            color: var(--text-white);
            margin: 0 0 1rem;
            letter-spacing: -0.02em;
            line-height: 1.2;
        }

        .cta-desc {
            color: var(--text-pale);
            font-size: 1rem;
            line-height: 1.7;
            margin: 0 0 2rem;
        }

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

        /* Form */
        .inline-form {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            max-width: 480px;
            margin: 2rem auto 0;
            flex-wrap: wrap;
            justify-content: center;
        }

        .inline-form input[type="tel"],
        .inline-form input[type="text"],
        .inline-form input[type="email"] {
            flex: 1;
            min-width: 220px;
            background: rgba(255, 255, 255, 0.08);
            border: 1.5px solid rgba(255, 215, 0, 0.3);
            border-radius: 6rem;
            padding: 0.8rem 1.4rem;
            color: var(--text-white);
            font-family: var(--font-family);
            font-size: 0.95rem;
            transition: all var(--transition-base);
            box-shadow: none;
        }

        .inline-form input::placeholder {
            color: var(--text-muted);
        }

        .inline-form input:focus {
            border-color: var(--primary-gold);
            background: rgba(255, 255, 255, 0.12);
            box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.15);
            outline: none;
        }

        .form-note {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 0.75rem;
            letter-spacing: 0.02em;
        }

        /* Footer */
        .site-footer {
            background: #071F13;
            border-top: 1px solid var(--border-gold);
            padding: 3.5rem 0 1.5rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 2.5rem;
            margin-bottom: 2rem;
        }

        .footer-brand .brand-logo {
            margin-bottom: 0.8rem;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.7;
            margin: 0;
            max-width: 380px;
        }

        .footer-heading {
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary-gold);
            margin: 0 0 1rem;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

        .footer-links a {
            color: var(--text-pale);
            font-size: 0.9rem;
            transition: color var(--transition-base), padding-left var(--transition-base);
        }

        .footer-links a:hover {
            color: var(--primary-gold);
            padding-left: 4px;
        }

        .footer-license p {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.6;
            margin: 0 0 0.6rem;
        }

        .footer-license i {
            color: var(--primary-gold);
            font-size: 0.9rem;
            width: 18px;
            text-align: center;
        }

        .copyright {
            border-top: 1px solid rgba(255, 215, 0, 0.12);
            padding-top: 1.5rem;
            text-align: center;
        }

        .copyright p {
            color: var(--text-muted);
            font-size: 0.78rem;
            letter-spacing: 0.02em;
            margin: 0;
            line-height: 1.6;
        }

        /* FAB - Classic Royal Style for Style A */
        .fab-float {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(145deg, #1A1A1A 0%, #0A0A0A 100%);
            border: 2.5px solid var(--primary-gold);
            color: var(--primary-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            cursor: pointer;
            opacity: 0.7;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            transition: all var(--transition-base);
            animation: fab-float 3s ease-in-out infinite;
            text-decoration: none;
        }

        .fab-float:hover,
        .fab-float:focus {
            opacity: 1;
            transform: scale(1.15);
            box-shadow: 0 8px 32px rgba(255, 215, 0, 0.5);
            color: var(--gold-light);
        }

        .fab-float:active {
            transform: scale(0.92) translateY(2px);
        }

        .fab-notification {
            position: absolute;
            top: -3px;
            right: -3px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #FF1744;
            border: 2px solid var(--bg-deep);
            animation: notification-blink 2s ease-in-out infinite;
        }

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

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

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.5rem;
            }
            .hero-section {
                min-height: 520px;
                padding: 5rem 0 4rem;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
            .main-nav a {
                padding: 0.5rem 0.75rem;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-padding: 3.5rem 0;
                --hero-padding: 4rem 0 3rem;
            }

            .nav-wrap {
                flex-wrap: wrap;
            }

            .nav-toggle {
                display: flex;
            }

            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 0.25rem;
                padding-top: 0.75rem;
                margin-top: 0.5rem;
                border-top: 1px solid var(--border-gold);
            }

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

            .main-nav a {
                padding: 0.7rem 1rem;
                font-size: 0.9rem;
                text-align: left;
                border-radius: 8px;
            }

            .nav-actions {
                margin-left: auto;
            }

            .hero-section {
                min-height: auto;
                flex-direction: column;
                text-align: left;
            }

            .hero-content {
                margin-bottom: 2rem;
            }

            .hero-title {
                font-size: 2rem;
            }

            .hero-subtitle {
                font-size: 1rem;
            }

            .hero-poster {
                max-width: 320px;
                margin: 0 auto;
            }

            .hero-stats {
                gap: 1.25rem;
            }

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

            .section-title {
                font-size: 1.7rem;
            }

            .service-grid {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }

            .comparison-wrapper {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }

            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.75rem;
            }

            .metric-card {
                padding: 1.25rem 1rem;
            }

            .metric-value {
                font-size: 1.5rem;
            }

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

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

            .inline-form {
                flex-direction: column;
                align-items: stretch;
            }

            .inline-form input {
                width: 100%;
                min-width: auto;
                text-align: center;
            }

            .btn-large {
                width: 100%;
            }

            .fab-float {
                left: 0.75rem;
                bottom: 5rem;
                width: 46px;
                height: 46px;
                font-size: 1.15rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .brand-logo {
                font-size: 1rem;
            }
            .brand-logo span {
                font-size: 0.65rem;
            }

            .nav-actions .btn {
                padding: 0.45rem 0.85rem;
                font-size: 0.78rem;
                min-height: 36px;
            }

            .hero-title {
                font-size: 1.6rem;
                letter-spacing: -0.01em;
            }

            .hero-subtitle {
                font-size: 0.9rem;
            }

            .hero-stats {
                gap: 1rem;
                flex-direction: column;
                gap: 0.75rem;
            }

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

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

            .service-card {
                padding: 1.25rem;
            }

            .comparison-col {
                padding: 1.25rem;
            }

            .faq-question {
                font-size: 0.9rem;
                padding: 1rem 1.1rem;
            }

            .faq-item.active .faq-answer {
                padding: 0 1.1rem 1.1rem;
            }

            .cta-title {
                font-size: 1.3rem;
            }

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