/* roulang page: index */
:root {
            --bg-deep: #0A2E1C;
            --bg-forest: #123E25;
            --bg-card: #0d3622;
            --bg-card-hover: #144a2e;
            --gold: #FFD700;
            --gold-light: #FFED80;
            --gold-dark: #C5A059;
            --red: #D32F2F;
            --red-bright: #E53935;
            --white: #FFFFFF;
            --mint: #D1F2EB;
            --mint-light: #E8F8F3;
            --text-body: #E0E8E4;
            --text-muted: #9BB5A8;
            --border-gold: rgba(255,215,0,0.35);
            --border-gold-strong: rgba(255,215,0,0.6);
            --shadow-gold: 0 4px 20px rgba(255,215,0,0.2);
            --shadow-gold-lg: 0 8px 40px rgba(255,215,0,0.25);
            --shadow-card: 0 2px 16px rgba(0,0,0,0.4);
            --shadow-card-hover: 0 6px 28px rgba(0,0,0,0.55);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --font-heading: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            --font-body: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4,0,0.2,1);
            --container-max: 1200px;
            --nav-height: 68px;
        }

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

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

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

        a {
            color: var(--gold);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover, a:focus {
            color: var(--gold-light);
            text-decoration: underline;
        }
        a:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
            border-radius: 3px;
        }

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

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-heading);
            color: var(--white);
            line-height: 1.3;
            margin-top: 0;
        }

        h1 { font-size: 2.5rem; font-weight: 800; letter-spacing: -0.01em; }
        h2 { font-size: 1.85rem; font-weight: 700; margin-bottom: 1rem; }
        h3 { font-size: 1.35rem; font-weight: 600; margin-bottom: 0.6rem; }
        h4 { font-size: 1.15rem; font-weight: 600; }

        p { margin-top: 0; margin-bottom: 1rem; }

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

        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .section-padding {
            padding-top: 70px;
            padding-bottom: 70px;
        }
        .section-padding-sm {
            padding-top: 50px;
            padding-bottom: 50px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--gold);
            background: rgba(255,215,0,0.08);
            border: 1px solid rgba(255,215,0,0.25);
            padding: 6px 16px;
            border-radius: 50px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 1.85rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 12px;
            position: relative;
        }
        .section-title::after {
            content: '';
            display: block;
            width: 50px;
            height: 3px;
            background: var(--gold);
            margin-top: 10px;
            border-radius: 2px;
        }
        .section-desc {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 700px;
            line-height: 1.7;
        }

        /* ========== NAVIGATION ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(10,46,28,0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255,215,0,0.15);
            height: var(--nav-height);
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
        }
        .site-header.scrolled {
            background: rgba(10,46,28,0.97);
            box-shadow: 0 4px 24px rgba(0,0,0,0.5);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .logo a {
            font-family: var(--font-heading);
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--gold);
            text-decoration: none;
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .logo a:hover { color: var(--gold-light); text-decoration: none; }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--gold), var(--gold-dark));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--bg-deep);
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            display: block;
            padding: 8px 16px;
            color: var(--mint);
            font-weight: 500;
            font-size: 0.95rem;
            border-radius: 6px;
            transition: all var(--transition-fast);
            text-decoration: none;
            white-space: nowrap;
        }
        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--gold);
            background: rgba(255,215,0,0.06);
            text-decoration: none;
        }
        .nav-links li a.active {
            font-weight: 600;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .btn-login {
            padding: 8px 20px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--gold);
            background: transparent;
            border: 1px solid rgba(255,215,0,0.4);
            border-radius: 6px;
            cursor: pointer;
            transition: all var(--transition-fast);
            text-decoration: none;
            white-space: nowrap;
        }
        .btn-login:hover {
            background: rgba(255,215,0,0.08);
            border-color: var(--gold);
            color: var(--gold-light);
            text-decoration: none;
        }
        .btn-signup {
            padding: 9px 22px;
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--bg-deep);
            background: linear-gradient(135deg, var(--gold), var(--gold-dark));
            border: none;
            border-radius: 6px;
            cursor: pointer;
            transition: all var(--transition-fast);
            text-decoration: none;
            white-space: nowrap;
            box-shadow: 0 2px 12px rgba(255,215,0,0.25);
        }
        .btn-signup:hover {
            background: linear-gradient(135deg, var(--gold-light), var(--gold));
            box-shadow: 0 4px 20px rgba(255,215,0,0.4);
            transform: translateY(-1px);
            color: var(--bg-deep);
            text-decoration: none;
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--gold);
            font-size: 1.6rem;
            cursor: pointer;
            padding: 6px;
        }

        @media (max-width: 860px) {
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                flex-direction: column;
                background: rgba(10,46,28,0.98);
                backdrop-filter: blur(20px);
                border-bottom: 1px solid rgba(255,215,0,0.2);
                padding: 12px 0;
                gap: 2px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li a {
                padding: 12px 24px;
                font-size: 1rem;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-actions .btn-login,
            .nav-actions .btn-signup {
                padding: 7px 14px;
                font-size: 0.82rem;
            }
        }

        /* ========== HERO ========== */
        .hero-section {
            padding-top: calc(var(--nav-height) + 50px);
            padding-bottom: 60px;
            position: relative;
            background: linear-gradient(180deg, #0A2E1C 0%, #0d3622 40%, #123E25 100%);
            overflow: hidden;
        }
        .hero-bg-img {
            position: absolute;
            top: 0;
            right: -60px;
            width: 55%;
            height: 100%;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.18;
            mask-image: linear-gradient(to left, rgba(0,0,0,0.7) 30%, transparent 100%);
            -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,0.7) 30%, transparent 100%);
            pointer-events: none;
        }
        .hero-inner {
            position: relative;
            z-index: 1;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(211,47,47,0.15);
            border: 1px solid rgba(211,47,47,0.4);
            color: var(--red-bright);
            font-weight: 700;
            font-size: 0.82rem;
            padding: 6px 16px;
            border-radius: 50px;
            letter-spacing: 0.04em;
            margin-bottom: 18px;
        }
        .hero-title {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--white);
            line-height: 1.2;
            margin-bottom: 16px;
            max-width: 650px;
        }
        .hero-title .gold-highlight {
            color: var(--gold);
            position: relative;
        }
        .hero-desc {
            font-size: 1.05rem;
            color: var(--mint);
            max-width: 580px;
            line-height: 1.7;
            margin-bottom: 28px;
        }
        .hero-cta-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }
        .btn-primary-gold {
            display: inline-block;
            padding: 13px 32px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--bg-deep);
            background: linear-gradient(135deg, var(--gold), var(--gold-dark));
            border: none;
            border-radius: 8px;
            cursor: pointer;
            text-decoration: none;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 18px rgba(255,215,0,0.3);
            white-space: nowrap;
        }
        .btn-primary-gold:hover {
            background: linear-gradient(135deg, var(--gold-light), var(--gold));
            box-shadow: 0 6px 26px rgba(255,215,0,0.45);
            transform: translateY(-2px);
            color: var(--bg-deep);
            text-decoration: none;
        }
        .btn-outline-gold {
            display: inline-block;
            padding: 12px 30px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--gold);
            background: transparent;
            border: 2px solid rgba(255,215,0,0.5);
            border-radius: 8px;
            cursor: pointer;
            text-decoration: none;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }
        .btn-outline-gold:hover {
            border-color: var(--gold);
            background: rgba(255,215,0,0.06);
            color: var(--gold-light);
            text-decoration: none;
        }

        .hero-compare-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 40px;
        }
        .hero-compare-card {
            background: var(--bg-card);
            border: 2px solid rgba(255,215,0,0.18);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: left;
            transition: all var(--transition-smooth);
            position: relative;
        }
        .hero-compare-card.recommended {
            border-color: var(--gold);
            background: linear-gradient(180deg, rgba(255,215,0,0.08) 0%, var(--bg-card) 30%);
            box-shadow: var(--shadow-gold-lg);
            transform: translateY(-6px);
        }
        .hero-compare-card.recommended::before {
            content: 'Đề Xuất';
            position: absolute;
            top: -13px;
            right: 20px;
            background: var(--gold);
            color: var(--bg-deep);
            font-size: 0.72rem;
            font-weight: 800;
            padding: 4px 14px;
            border-radius: 50px;
            letter-spacing: 0.03em;
        }
        .hero-compare-card .card-icon {
            font-size: 2rem;
            color: var(--gold);
            margin-bottom: 12px;
        }
        .hero-compare-card h4 {
            color: var(--white);
            margin-bottom: 6px;
            font-size: 1.1rem;
        }
        .hero-compare-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 16px;
            line-height: 1.55;
        }
        .hero-compare-card .card-link {
            font-weight: 600;
            color: var(--gold);
            font-size: 0.9rem;
        }
        .hero-compare-card:hover {
            border-color: rgba(255,215,0,0.5);
            box-shadow: var(--shadow-gold);
        }
        .hero-compare-card.recommended:hover {
            box-shadow: var(--shadow-gold-lg);
            border-color: var(--gold-light);
        }

        @media (max-width: 860px) {
            .hero-title { font-size: 1.9rem; }
            .hero-desc { font-size: 0.95rem; }
            .hero-compare-cards {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .hero-compare-card.recommended {
                transform: translateY(0);
            }
            .hero-bg-img { width: 80%; right: -100px; opacity: 0.1; }
        }

        /* ========== BENEFITS SECTION ========== */
        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .benefit-card {
            background: var(--bg-card);
            border: 1px solid rgba(255,215,0,0.12);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            transition: all var(--transition-smooth);
            text-align: left;
        }
        .benefit-card:hover {
            border-color: rgba(255,215,0,0.4);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .benefit-card .benefit-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: rgba(255,215,0,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--gold);
            margin-bottom: 16px;
        }
        .benefit-card h4 {
            color: var(--white);
            margin-bottom: 8px;
        }
        .benefit-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 0;
        }
        @media (max-width: 768px) {
            .benefits-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 520px) {
            .benefits-grid { grid-template-columns: 1fr; }
        }

        /* ========== ELIGIBILITY SECTION ========== */
        .eligibility-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .eligibility-img {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .eligibility-img img {
            width: 100%;
            height: auto;
            border-radius: var(--radius-xl);
        }
        .eligibility-content h2 {
            margin-bottom: 16px;
        }
        .eligibility-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .eligibility-list li {
            padding: 12px 0;
            border-bottom: 1px solid rgba(255,215,0,0.1);
            display: flex;
            align-items: flex-start;
            gap: 12px;
            color: var(--text-body);
            font-size: 0.95rem;
        }
        .eligibility-list li i {
            color: var(--gold);
            margin-top: 3px;
            flex-shrink: 0;
        }
        @media (max-width: 768px) {
            .eligibility-wrap { grid-template-columns: 1fr; }
        }

        /* ========== SECURITY SECTION ========== */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .security-card {
            background: var(--bg-card);
            border: 1px solid rgba(255,215,0,0.1);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            transition: all var(--transition-smooth);
        }
        .security-card:hover {
            border-color: rgba(255,215,0,0.35);
            box-shadow: var(--shadow-gold);
        }
        .security-card .sec-icon {
            font-size: 2.2rem;
            color: var(--gold);
            margin-bottom: 12px;
        }
        .security-card h4 {
            color: var(--white);
            margin-bottom: 6px;
            font-size: 1rem;
        }
        .security-card p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-bottom: 0;
            line-height: 1.5;
        }
        @media (max-width: 768px) {
            .security-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 480px) {
            .security-grid { grid-template-columns: 1fr; }
        }

        /* ========== SOCIAL PROOF ========== */
        .social-proof-row {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
        }
        .stat-block {
            text-align: center;
            padding: 20px 28px;
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--gold);
            line-height: 1;
            margin-bottom: 4px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        .star-rating {
            color: var(--gold);
            font-size: 1.3rem;
            letter-spacing: 2px;
        }
        @media (max-width: 600px) {
            .social-proof-row { gap: 12px; }
            .stat-number { font-size: 2rem; }
        }

        /* ========== NEWS / CMS SECTION ========== */
        .news-layout {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 32px;
        }
        .news-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .news-list li {
            border-bottom: 1px solid rgba(255,215,0,0.08);
            padding: 16px 0;
            transition: background var(--transition-fast);
        }
        .news-list li:hover {
            background: rgba(255,215,0,0.03);
            padding-left: 8px;
            border-radius: 4px;
        }
        .news-list li a {
            font-weight: 600;
            font-size: 1rem;
            color: var(--mint);
            text-decoration: none;
            display: block;
            margin-bottom: 4px;
            transition: color var(--transition-fast);
        }
        .news-list li a:hover {
            color: var(--gold);
            text-decoration: none;
        }
        .news-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .news-sidebar {
            background: var(--bg-card);
            border: 1px solid rgba(255,215,0,0.1);
            border-radius: var(--radius-lg);
            padding: 24px;
        }
        .news-sidebar h4 {
            color: var(--gold);
            margin-bottom: 14px;
            font-size: 1rem;
        }
        .news-sidebar ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .news-sidebar ul li {
            padding: 8px 0;
            border-bottom: 1px solid rgba(255,215,0,0.06);
        }
        .news-sidebar ul li a {
            font-size: 0.9rem;
            color: var(--mint);
        }
        .news-sidebar ul li a:hover {
            color: var(--gold);
        }
        .news-empty {
            color: var(--text-muted);
            font-style: italic;
            padding: 20px 0;
        }
        @media (max-width: 768px) {
            .news-layout { grid-template-columns: 1fr; }
        }

        /* ========== CTA FORM SECTION ========== */
        .cta-form-section {
            background: linear-gradient(180deg, var(--bg-forest) 0%, var(--bg-deep) 100%);
            border: 1px solid rgba(255,215,0,0.12);
            border-radius: var(--radius-xl);
            padding: 48px 36px;
            position: relative;
            overflow: hidden;
        }
        .cta-form-section::after {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(255,215,0,0.08) 0%, transparent 70%);
            pointer-events: none;
            border-radius: 50%;
        }
        .cta-form-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .cta-form-left h2 {
            color: var(--white);
            margin-bottom: 12px;
        }
        .cta-form-left p {
            color: var(--text-muted);
            line-height: 1.7;
        }
        .cta-form-right {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .cta-form-right input {
            padding: 13px 16px;
            border-radius: 8px;
            border: 1px solid rgba(255,215,0,0.3);
            background: rgba(0,0,0,0.25);
            color: var(--white);
            font-size: 0.95rem;
            outline: none;
            transition: border var(--transition-fast);
        }
        .cta-form-right input:focus {
            border-color: var(--gold);
            box-shadow: 0 0 0 3px rgba(255,215,0,0.1);
        }
        .cta-form-right input::placeholder {
            color: rgba(255,255,255,0.4);
        }
        .cta-form-right .btn-submit {
            padding: 14px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--bg-deep);
            background: linear-gradient(135deg, var(--gold), var(--gold-dark));
            border: none;
            border-radius: 8px;
            cursor: pointer;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 18px rgba(255,215,0,0.3);
        }
        .cta-form-right .btn-submit:hover {
            background: linear-gradient(135deg, var(--gold-light), var(--gold));
            box-shadow: 0 6px 26px rgba(255,215,0,0.45);
        }
        @media (max-width: 768px) {
            .cta-form-inner { grid-template-columns: 1fr; }
            .cta-form-section { padding: 32px 20px; }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #061e12;
            border-top: 2px solid rgba(255,215,0,0.2);
            padding: 40px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .footer-col h4 {
            color: var(--gold);
            margin-bottom: 12px;
            font-size: 1rem;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 6px;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .footer-col ul li a:hover {
            color: var(--gold-light);
        }
        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            margin-top: 28px;
            border-top: 1px solid rgba(255,215,0,0.1);
            color: var(--text-muted);
            font-size: 0.82rem;
        }
        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255,215,0,0.08);
            border: 1px solid rgba(255,215,0,0.2);
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 0.78rem;
            color: var(--gold);
            margin-top: 8px;
        }
        @media (max-width: 600px) {
            .footer-grid { grid-template-columns: 1fr; }
        }

        /* ========== FAB ========== */
        .fab-float {
            position: fixed;
            left: 20px;
            bottom: 24px;
            z-index: 999;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(145deg, #1a1a1a 0%, #0d0d0d 100%);
            border: 2px solid var(--gold);
            box-shadow: 0 4px 20px rgba(255,215,0,0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition-smooth);
            opacity: 0.7;
            animation: fab-breathe 3s ease-in-out infinite;
            text-decoration: none;
            color: var(--gold);
            font-size: 1.3rem;
        }
        .fab-float:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 6px 30px rgba(255,215,0,0.5);
            animation: none;
        }
        .fab-float:active {
            transform: scale(0.95);
        }
        .fab-badge {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            background: var(--red-bright);
            border-radius: 50%;
            border: 2px solid var(--bg-deep);
            animation: blink-dot 2s ease-in-out infinite;
        }
        @keyframes fab-breathe {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        @keyframes blink-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.35; }
        }

        /* ========== MISC ========== */
        .text-gold { color: var(--gold); }
        .bg-forest { background: var(--bg-forest); }
        .bg-card { background: var(--bg-card); }
        .divider-gold {
            height: 1px;
            background: rgba(255,215,0,0.15);
            margin: 0;
            border: none;
        }
        .mb-0 { margin-bottom: 0; }
        .mt-0 { margin-top: 0; }

        @media (max-width: 520px) {
            h1 { font-size: 1.7rem; }
            h2 { font-size: 1.4rem; }
            .section-padding { padding-top: 44px; padding-bottom: 44px; }
            .hero-section { padding-top: calc(var(--nav-height) + 30px); padding-bottom: 36px; }
            .btn-primary-gold, .btn-outline-gold { padding: 11px 22px; font-size: 0.9rem; }
        }

/* roulang page: article */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-card: #0F3522;
            --bg-elevated: #184A30;
            --bg-dark: #062012;
            --accent-gold: #FFD700;
            --accent-gold-light: #FFED80;
            --accent-gold-dark: #C5A000;
            --accent-red: #D32F2F;
            --accent-red-light: #EF5350;
            --accent-amber: #FF9F00;
            --text-primary: #FFFFFF;
            --text-secondary: #E8F5E9;
            --text-muted: #B8D4C2;
            --text-soft: #D1F2EB;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-gold-light: rgba(255, 215, 0, 0.55);
            --border-subtle: rgba(255, 255, 255, 0.1);
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
            --shadow-gold: 0 4px 24px rgba(255, 215, 0, 0.15);
            --shadow-elevated: 0 8px 40px rgba(0, 0, 0, 0.4);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition-smooth: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
            --font-body: 'Inter', system-ui, -apple-system, sans-serif;
            --font-display: 'Playfair Display', 'Inter', serif;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-body);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            background-image: 
                radial-gradient(ellipse at 20% 20%, rgba(255,215,0,0.03) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 60%, rgba(211,47,47,0.04) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(255,215,0,0.02) 0%, transparent 40%);
            background-attachment: fixed;
        }

        a { text-decoration: none; color: inherit; transition: color var(--transition-smooth); }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; padding: 0; margin: 0; }
        button { cursor: pointer; font-family: inherit; border: none; outline: none; }
        h1, h2, h3, h4, h5, h6 { margin: 0; line-height: 1.3; }

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

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-gold);
            transition: all var(--transition-smooth);
        }
        .site-header.scrolled {
            background: rgba(6, 32, 18, 0.96);
            box-shadow: 0 2px 24px rgba(0, 0, 0, 0.5);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            flex-wrap: wrap;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--bg-dark);
            font-weight: 800;
            box-shadow: 0 0 18px rgba(255, 215, 0, 0.35);
        }
        .logo-text {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--accent-gold);
            letter-spacing: -0.01em;
            line-height: 1.2;
            max-width: 260px;
        }
        .logo-text span {
            display: block;
            font-family: var(--font-body);
            font-weight: 400;
            font-size: 0.65rem;
            color: var(--text-muted);
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .nav-links li a {
            display: inline-block;
            padding: 9px 16px;
            border-radius: 22px;
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: all var(--transition-smooth);
            white-space: nowrap;
            border: 1px solid transparent;
        }
        .nav-links li a:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.06);
            border-color: var(--border-gold);
        }
        .nav-links li a.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.1);
            border-color: var(--border-gold-light);
            font-weight: 600;
            box-shadow: 0 0 12px rgba(255, 215, 0, 0.1);
        }
        .mobile-toggle {
            display: none;
            background: transparent;
            color: var(--accent-gold);
            font-size: 1.6rem;
            padding: 6px 10px;
            border-radius: 8px;
            border: 1px solid var(--border-gold);
            transition: all var(--transition-smooth);
        }
        .mobile-toggle:hover {
            background: rgba(255, 215, 0, 0.1);
        }
        .mobile-nav {
            display: none;
            width: 100%;
            padding: 12px 0 8px;
            border-top: 1px solid var(--border-subtle);
            margin-top: 8px;
        }
        .mobile-nav.active {
            display: block;
        }
        .mobile-nav ul {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-nav ul li a {
            display: block;
            padding: 11px 16px;
            border-radius: 10px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-muted);
            transition: all var(--transition-smooth);
            border: 1px solid transparent;
        }
        .mobile-nav ul li a:hover,
        .mobile-nav ul li a.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
            border-color: var(--border-gold);
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-wrap {
            padding-top: 100px;
            padding-bottom: 4px;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-smooth);
        }
        .breadcrumb a:hover { color: var(--accent-gold); }
        .breadcrumb .sep {
            color: var(--accent-gold);
            font-size: 0.7rem;
        }
        .breadcrumb .current {
            color: var(--accent-gold);
            font-weight: 500;
        }

        /* ========== ARTICLE HERO ========== */
        .article-hero {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            padding: 48px 36px;
            margin-bottom: 32px;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            min-height: 280px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow-elevated);
            border: 1px solid var(--border-gold);
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10,46,28,0.4) 0%, rgba(6,32,18,0.88) 60%, rgba(6,32,18,0.96) 100%);
            z-index: 1;
        }
        .article-hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }
        .article-cat-tag {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            text-transform: uppercase;
            background: var(--accent-red);
            color: #fff;
            margin-bottom: 14px;
            box-shadow: 0 2px 10px rgba(211, 47, 47, 0.35);
        }
        .article-hero-content h1 {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 2.2rem;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 10px;
            text-shadow: 0 2px 8px rgba(0,0,0,0.4);
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-muted);
            align-items: center;
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .article-meta i {
            color: var(--accent-gold);
            font-size: 0.75rem;
        }

        /* ========== ARTICLE BODY ========== */
        .article-body-wrap {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
            margin-bottom: 40px;
        }
        .article-body-wrap .article-content {
            color: var(--text-secondary);
            font-size: 1.05rem;
            line-height: 1.75;
        }
        .article-body-wrap .article-content h2 {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--accent-gold);
            margin: 28px 0 12px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--border-gold);
        }
        .article-body-wrap .article-content h3 {
            font-weight: 600;
            font-size: 1.2rem;
            color: var(--text-primary);
            margin: 22px 0 8px;
        }
        .article-body-wrap .article-content p {
            margin-bottom: 14px;
        }
        .article-body-wrap .article-content ul,
        .article-body-wrap .article-content ol {
            margin: 10px 0 16px 20px;
            padding-left: 8px;
        }
        .article-body-wrap .article-content ul li {
            list-style: disc;
            margin-bottom: 6px;
            color: var(--text-secondary);
        }
        .article-body-wrap .article-content ol li {
            list-style: decimal;
            margin-bottom: 6px;
            color: var(--text-secondary);
        }
        .article-body-wrap .article-content strong {
            color: var(--accent-gold-light);
            font-weight: 600;
        }
        .article-body-wrap .article-content blockquote {
            border-left: 4px solid var(--accent-gold);
            padding: 14px 20px;
            margin: 18px 0;
            background: rgba(255,215,0,0.04);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-soft);
        }
        .article-body-wrap .article-content img {
            border-radius: var(--radius-md);
            margin: 16px 0;
            border: 1px solid var(--border-subtle);
        }
        .article-body-wrap .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 16px 0;
            font-size: 0.9rem;
        }
        .article-body-wrap .article-content table th {
            background: var(--bg-elevated);
            color: var(--accent-gold);
            padding: 10px 14px;
            border: 1px solid var(--border-subtle);
            text-align: left;
            font-weight: 600;
        }
        .article-body-wrap .article-content table td {
            padding: 10px 14px;
            border: 1px solid var(--border-subtle);
            color: var(--text-secondary);
        }

        /* ========== NOT FOUND ========== */
        .not-found-block {
            text-align: center;
            padding: 70px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
            margin-bottom: 40px;
        }
        .not-found-block .nf-icon {
            font-size: 4rem;
            color: var(--accent-gold);
            margin-bottom: 18px;
            opacity: 0.7;
        }
        .not-found-block h2 {
            font-family: var(--font-display);
            font-size: 1.8rem;
            color: #fff;
            margin-bottom: 10px;
        }
        .not-found-block p {
            color: var(--text-muted);
            margin-bottom: 22px;
            font-size: 1rem;
        }
        .btn-back-home {
            display: inline-block;
            padding: 12px 28px;
            border-radius: 25px;
            background: var(--accent-gold);
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition-bounce);
            border: 2px solid transparent;
        }
        .btn-back-home:hover {
            background: transparent;
            color: var(--accent-gold);
            border-color: var(--accent-gold);
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold);
        }

        /* ========== RELATED NAV ========== */
        .section-related {
            margin-bottom: 50px;
        }
        .section-related .section-title {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--accent-gold);
            margin-bottom: 20px;
            text-align: left;
            padding-left: 4px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }
        .related-card {
            display: block;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
            text-decoration: none;
        }
        .related-card:hover {
            border-color: var(--border-gold-light);
            box-shadow: var(--shadow-gold);
            transform: translateY(-3px);
        }
        .related-card-img {
            height: 140px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .related-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(10,46,28,0.8) 100%);
        }
        .related-card-body {
            padding: 16px;
        }
        .related-card-body h3 {
            font-weight: 600;
            font-size: 1rem;
            color: #fff;
            margin-bottom: 6px;
            line-height: 1.3;
        }
        .related-card-body p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.4;
            margin: 0;
        }
        .related-card-arrow {
            display: inline-block;
            margin-top: 8px;
            color: var(--accent-gold);
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* ========== FAQ ========== */
        .section-faq {
            margin-bottom: 50px;
        }
        .section-faq .section-title {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--accent-gold);
            margin-bottom: 22px;
            text-align: left;
            padding-left: 4px;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }
        .faq-item:hover {
            border-color: var(--border-gold);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 16px 20px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            border: none;
            transition: all var(--transition-smooth);
        }
        .faq-question i {
            color: var(--accent-gold);
            font-size: 0.8rem;
            transition: transform var(--transition-smooth);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 20px;
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        /* ========== CTA ========== */
        .section-cta {
            text-align: center;
            padding: 48px 28px;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, var(--bg-elevated), var(--bg-dark));
            border: 1px solid var(--border-gold);
            margin-bottom: 50px;
            box-shadow: var(--shadow-gold);
            position: relative;
            overflow: hidden;
        }
        .section-cta::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255,215,0,0.1) 0%, transparent 70%);
            pointer-events: none;
        }
        .section-cta h2 {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.7rem;
            color: var(--accent-gold);
            margin-bottom: 10px;
        }
        .section-cta p {
            color: var(--text-muted);
            margin-bottom: 22px;
            font-size: 1rem;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-cta {
            display: inline-block;
            padding: 13px 34px;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition-bounce);
            background: var(--accent-gold);
            color: var(--bg-dark);
            border: 2px solid var(--accent-gold);
            box-shadow: 0 4px 18px rgba(255,215,0,0.3);
        }
        .btn-cta:hover {
            background: transparent;
            color: var(--accent-gold);
            transform: translateY(-3px);
            box-shadow: 0 8px 28px rgba(255,215,0,0.4);
        }

        /* ========== FAB ========== */
        .floating-fab {
            position: fixed;
            left: 20px;
            bottom: 90px;
            z-index: 999;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(145deg, #1a1a1a, #0d0d0d);
            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), inset 0 1px 0 rgba(255,255,255,0.05);
            transition: all var(--transition-smooth);
            opacity: 0.7;
            animation: fab-breathe 3s ease-in-out infinite;
        }
        .floating-fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 6px 28px rgba(255,215,0,0.5);
            border-color: var(--accent-gold-light);
        }
        .floating-fab:active {
            transform: scale(0.95) translateY(2px);
            box-shadow: 0 2px 10px rgba(255,215,0,0.25);
            transition: all 0.1s ease;
        }
        .floating-fab .fab-inner {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .floating-fab .fab-inner i {
            font-size: 1.3rem;
            color: var(--accent-gold);
            transition: transform var(--transition-smooth);
        }
        .floating-fab:hover .fab-inner i {
            transform: rotate(360deg);
            transition: transform 0.6s ease;
        }
        .floating-fab .fab-crown {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            font-size: 0.7rem;
            color: var(--accent-gold);
            opacity: 0.9;
        }
        .floating-fab .fab-dot {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent-red);
            border: 2px solid #0d0d0d;
            animation: dot-blink 2s ease-in-out infinite;
        }
        @keyframes fab-breathe {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        @keyframes dot-blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 2px solid var(--border-gold);
            padding: 48px 0 24px;
            margin-top: 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            margin-bottom: 30px;
        }
        .footer-col h4 {
            font-weight: 600;
            font-size: 1rem;
            color: var(--accent-gold);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-col ul li {
            margin-bottom: 7px;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: color var(--transition-smooth);
        }
        .footer-col ul li a:hover {
            color: var(--accent-gold);
        }
        .footer-badge {
            display: inline-block;
            margin-top: 10px;
            padding: 6px 14px;
            border-radius: 20px;
            background: rgba(211,47,47,0.15);
            color: var(--accent-red-light);
            font-size: 0.8rem;
            font-weight: 600;
            border: 1px solid rgba(211,47,47,0.3);
        }
        .footer-badge i {
            color: var(--accent-gold);
            margin-right: 4px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
            text-align: center;
        }
        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.82rem;
            margin: 0;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .article-hero-content h1 { font-size: 1.8rem; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
            .article-body-wrap { padding: 24px 20px; }
        }
        @media (max-width: 768px) {
            .header-inner { flex-wrap: wrap; }
            .nav-links { display: none; }
            .mobile-toggle { display: block; }
            .logo-text { font-size: 1rem; max-width: 210px; }
            .article-hero { padding: 32px 20px; min-height: 220px; border-radius: var(--radius-md); }
            .article-hero-content h1 { font-size: 1.5rem; }
            .article-body-wrap { padding: 20px 16px; border-radius: var(--radius-md); }
            .related-grid { grid-template-columns: 1fr; gap: 12px; }
            .section-cta { padding: 34px 18px; border-radius: var(--radius-md); }
            .section-cta h2 { font-size: 1.4rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 20px; }
            .breadcrumb-wrap { padding-top: 90px; }
            .floating-fab { left: 12px; bottom: 70px; width: 44px; height: 44px; }
            .floating-fab .fab-inner i { font-size: 1.1rem; }
            .section-faq .section-title,
            .section-related .section-title { font-size: 1.3rem; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 12px; }
            .article-hero { padding: 24px 14px; min-height: 180px; }
            .article-hero-content h1 { font-size: 1.25rem; }
            .article-meta { font-size: 0.75rem; gap: 8px; }
            .article-body-wrap { padding: 14px 10px; font-size: 0.95rem; }
            .article-body-wrap .article-content { font-size: 0.95rem; }
            .article-body-wrap .article-content h2 { font-size: 1.2rem; }
            .section-cta h2 { font-size: 1.2rem; }
            .btn-cta { padding: 11px 24px; font-size: 0.9rem; }
            .breadcrumb { font-size: 0.75rem; }
            .floating-fab { left: 8px; bottom: 60px; width: 40px; height: 40px; }
            .floating-fab .fab-inner i { font-size: 1rem; }
        }

/* roulang page: category1 */
:root {
            --primary-dark: #0A2E1C;
            --primary-deep: #123E25;
            --primary-mid: #1B5E38;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --accent-amber: #FFBF00;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #9CB8A8;
            --bg-card: #0F3523;
            --bg-card-hover: #16452E;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-gold-strong: rgba(255, 215, 0, 0.65);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-card: 0 6px 24px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 14px 40px rgba(0, 0, 0, 0.5), 0 0 24px rgba(255, 215, 0, 0.12);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.25);
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.75rem;
            --spacing-lg: 3rem;
            --spacing-xl: 4.5rem;
            --transition-fast: 0.2s ease;
            --transition-base: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-body: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-tap-highlight-color: transparent;
        }

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-body);
            background-color: var(--primary-dark);
            color: var(--text-white);
            line-height: 1.6;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

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

        button, .button {
            cursor: pointer;
            font-family: var(--font-body);
            transition: all var(--transition-base);
            border: none;
            display: inline-block;
            text-align: center;
        }

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

        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            line-height: 1.25;
            margin-top: 0;
            color: var(--text-white);
            letter-spacing: -0.01em;
        }

        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            margin-bottom: var(--spacing-sm);
            line-height: 1.18;
        }

        h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            line-height: 1.3;
        }

        h3 {
            font-size: 1.35rem;
            font-weight: 650;
            margin-bottom: var(--spacing-xs);
            line-height: 1.35;
        }

        p {
            margin-top: 0;
            margin-bottom: var(--spacing-sm);
            color: var(--text-mint);
        }

        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* === NAVBAR === */
        .site-header {
            background-color: rgba(10, 46, 28, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-gold);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 0.9rem 0;
            transition: box-shadow var(--transition-base), background-color var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 6px 30px rgba(0, 0, 0, 0.4);
            background-color: rgba(10, 46, 28, 0.98);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .logo-brand {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--accent-gold);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            white-space: nowrap;
            line-height: 1.2;
        }

        .logo-brand i {
            font-size: 1.6rem;
            color: var(--accent-gold);
        }

        .nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 1.6rem;
        }

        .nav-links li {
            margin: 0;
        }

        .nav-links a {
            color: var(--text-mint);
            font-size: 0.95rem;
            font-weight: 600;
            padding: 0.5rem 0.15rem;
            position: relative;
            transition: color var(--transition-fast);
            display: inline-block;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent-gold);
            border-radius: 1px;
            transition: width var(--transition-base);
        }

        .nav-links a:hover {
            color: var(--accent-gold);
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .nav-links a.active {
            color: var(--accent-gold);
        }

        .nav-links a.active::after {
            width: 100%;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.85rem;
            flex-shrink: 0;
        }

        .btn-login {
            background: transparent;
            color: var(--text-mint);
            font-weight: 650;
            font-size: 0.92rem;
            padding: 0.55rem 1.1rem;
            border: 1px solid transparent;
            border-radius: 50px;
            transition: all var(--transition-fast);
        }

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

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            color: var(--primary-dark);
            font-weight: 750;
            font-size: 0.92rem;
            padding: 0.55rem 1.4rem;
            border-radius: 50px;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            border: 1px solid var(--accent-gold);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.42);
            color: var(--primary-dark);
            background: linear-gradient(135deg, #FFE033, #FFC400);
        }

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

        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--accent-gold);
            font-size: 1.45rem;
            padding: 0.3rem;
            line-height: 1;
        }

        /* === HERO === */
        .hero-category {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: var(--spacing-xl) 0 var(--spacing-lg);
            overflow: hidden;
        }

        .hero-category::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(160deg, rgba(10, 46, 28, 0.88) 0%, rgba(10, 46, 28, 0.75) 45%, rgba(10, 46, 28, 0.92) 100%);
            z-index: 1;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.45rem;
            background: rgba(255, 215, 0, 0.14);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            font-size: 0.82rem;
            font-weight: 650;
            padding: 0.35rem 0.9rem;
            border-radius: 50px;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.03em;
        }

        .hero-category h1 {
            font-size: 2.9rem;
            max-width: 780px;
            margin-bottom: 0.9rem;
            color: var(--text-white);
        }

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

        .hero-subhead {
            font-size: 1.12rem;
            color: var(--text-mint);
            max-width: 680px;
            line-height: 1.7;
            margin-bottom: var(--spacing-md);
        }

        .hero-main-card {
            background: linear-gradient(135deg, #142F21 0%, #0D2A1B 100%);
            border: 1.5px solid var(--border-gold-strong);
            border-radius: var(--radius-lg);
            padding: 2rem 2.2rem;
            max-width: 520px;
            box-shadow: var(--shadow-card), 0 0 40px rgba(255, 215, 0, 0.1);
            position: relative;
            overflow: hidden;
        }

        .hero-main-card::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -30%;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.16) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-main-card .card-label {
            font-size: 0.82rem;
            color: var(--accent-gold);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 0.5rem;
        }

        .hero-main-card h3 {
            font-size: 1.55rem;
            margin-bottom: 0.55rem;
            color: var(--text-white);
        }

        .hero-main-card p {
            font-size: 0.95rem;
            color: var(--text-mint);
            margin-bottom: 1.2rem;
        }

        .hero-card-actions {
            display: flex;
            gap: 0.85rem;
            flex-wrap: wrap;
        }

        .btn-gold-lg {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            color: var(--primary-dark);
            font-weight: 750;
            font-size: 1rem;
            padding: 0.8rem 1.8rem;
            border-radius: 50px;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            border: 1px solid var(--accent-gold);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-gold-lg:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(255, 215, 0, 0.45);
            color: var(--primary-dark);
        }

        .btn-outline-gold {
            background: transparent;
            color: var(--accent-gold);
            font-weight: 650;
            font-size: 1rem;
            padding: 0.8rem 1.6rem;
            border-radius: 50px;
            border: 1.5px solid var(--border-gold-strong);
            transition: all var(--transition-base);
        }

        .btn-outline-gold:hover {
            background: rgba(255, 215, 0, 0.12);
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            transform: translateY(-2px);
        }

        .hero-rule-grid {
            display: flex;
            gap: 0.8rem;
            flex-wrap: wrap;
            margin-top: var(--spacing-md);
        }

        .hero-rule-chip {
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--text-mint);
            font-size: 0.82rem;
            font-weight: 600;
            padding: 0.45rem 1rem;
            border-radius: 50px;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            transition: all var(--transition-fast);
        }

        .hero-rule-chip i {
            color: var(--accent-gold);
            font-size: 0.8rem;
        }

        /* === SECTION BASE === */
        .section {
            padding: var(--spacing-xl) 0;
        }

        .section-tight {
            padding: var(--spacing-lg) 0;
        }

        .section-alt {
            background-color: var(--primary-deep);
        }

        .section-header {
            margin-bottom: var(--spacing-md);
            max-width: 720px;
        }

        .section-header.left-align {
            text-align: left;
            margin-left: 0;
        }

        .section-tag {
            display: inline-block;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            font-size: 0.78rem;
            font-weight: 700;
            padding: 0.3rem 0.85rem;
            border-radius: 50px;
            text-transform: uppercase;
            letter-spacing: 0.07em;
            margin-bottom: 0.7rem;
        }

        .section-header h2 {
            margin-bottom: 0.55rem;
        }

        .section-header p {
            font-size: 1.02rem;
            color: var(--text-mint);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* === RULES OVERVIEW === */
        .rules-overview-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.6rem;
            margin-top: var(--spacing-md);
        }

        .rule-card {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 1.6rem 1.5rem;
            transition: all var(--transition-base);
            position: relative;
        }

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

        .rule-card .rule-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.18), rgba(255, 215, 0, 0.06));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-gold);
            margin-bottom: 1rem;
            border: 1px solid var(--border-gold);
        }

        .rule-card h3 {
            font-size: 1.2rem;
            margin-bottom: 0.45rem;
        }

        .rule-card p {
            font-size: 0.92rem;
            color: var(--text-mint);
            line-height: 1.65;
            margin-bottom: 0;
        }

        .rule-card .rule-number {
            position: absolute;
            top: 1.2rem;
            right: 1.3rem;
            font-size: 2.2rem;
            font-weight: 900;
            color: rgba(255, 215, 0, 0.1);
            line-height: 1;
            pointer-events: none;
        }

        /* === HAND RANKING === */
        .hand-ranking-section {
            position: relative;
            background: linear-gradient(170deg, #0B301E 0%, #123E25 50%, #0A2E1C 100%);
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
        }

        .hand-ranking-layout {
            display: grid;
            grid-template-columns: 1fr 1.3fr;
            gap: 2.5rem;
            align-items: start;
        }

        .hand-ranking-text h3 {
            font-size: 1.4rem;
            margin-bottom: 0.6rem;
            color: var(--accent-gold);
        }

        .hand-ranking-text p {
            font-size: 0.96rem;
            line-height: 1.7;
            margin-bottom: 1.1rem;
        }

        .hand-ranking-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            gap: 0.7rem;
        }

        .hand-ranking-list li {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.09);
            border-radius: var(--radius-sm);
            padding: 0.7rem 1rem;
            font-size: 0.9rem;
            color: var(--text-mint);
            transition: all var(--transition-fast);
        }

        .hand-ranking-list li:hover {
            border-color: var(--border-gold);
            background: rgba(255, 215, 0, 0.07);
            color: var(--text-white);
        }

        .hand-ranking-list li i {
            color: var(--accent-gold);
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .hand-ranking-image {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1.5px solid var(--border-gold);
            box-shadow: var(--shadow-card);
            min-height: 380px;
        }

        .hand-ranking-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 380px;
        }

        .hand-ranking-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(200deg, rgba(10, 46, 28, 0.3) 0%, transparent 50%, rgba(10, 46, 28, 0.5) 100%);
            pointer-events: none;
        }

        .image-caption {
            position: absolute;
            bottom: 1.2rem;
            left: 1.2rem;
            right: 1.2rem;
            z-index: 5;
            background: rgba(10, 46, 28, 0.85);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-sm);
            padding: 0.85rem 1.1rem;
            font-size: 0.85rem;
            color: var(--text-mint);
            font-weight: 550;
            line-height: 1.5;
        }

        /* === STEPS / PROCESS === */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.4rem;
            margin-top: var(--spacing-md);
        }

        .step-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 1.5rem 1.3rem;
            border: 1px solid rgba(255, 255, 255, 0.07);
            transition: all var(--transition-base);
            position: relative;
        }

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

        .step-number {
            font-size: 2.6rem;
            font-weight: 900;
            color: var(--accent-gold);
            line-height: 1;
            margin-bottom: 0.7rem;
            opacity: 0.85;
        }

        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
            color: var(--text-white);
        }

        .step-item p {
            font-size: 0.88rem;
            color: var(--text-mint);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* === COMMON MISTAKES === */
        .mistakes-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.2rem;
        }

        .mistake-item {
            display: flex;
            gap: 0.9rem;
            align-items: flex-start;
            background: rgba(255, 255, 255, 0.04);
            border-left: 3px solid var(--accent-red);
            border-radius: var(--radius-sm);
            padding: 1.1rem 1.2rem;
            transition: all var(--transition-fast);
        }

        .mistake-item:hover {
            background: rgba(255, 255, 255, 0.07);
            border-left-color: var(--accent-gold);
        }

        .mistake-item .mistake-icon {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(211, 47, 47, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FF6B6B;
            font-size: 0.9rem;
        }

        .mistake-item h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.25rem;
            color: var(--text-white);
        }

        .mistake-item p {
            font-size: 0.88rem;
            color: var(--text-mint);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* === SCORING TABLE === */
        .scoring-wrap {
            background: var(--bg-card);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            margin-top: var(--spacing-md);
        }

        .scoring-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.92rem;
        }

        .scoring-table th {
            background: rgba(255, 215, 0, 0.12);
            color: var(--accent-gold);
            font-weight: 700;
            font-size: 0.9rem;
            text-align: left;
            padding: 0.9rem 1.2rem;
            border-bottom: 1px solid var(--border-gold);
            letter-spacing: 0.02em;
        }

        .scoring-table td {
            padding: 0.85rem 1.2rem;
            color: var(--text-mint);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            line-height: 1.55;
        }

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

        .scoring-table tbody tr {
            transition: background-color var(--transition-fast);
        }

        .scoring-table tbody tr:hover {
            background: rgba(255, 215, 0, 0.05);
        }

        .scoring-table .highlight-cell {
            color: var(--accent-gold);
            font-weight: 650;
        }

        /* === CTA SECTION === */
        .cta-section {
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: var(--spacing-xl) 0;
            text-align: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(150deg, rgba(10, 46, 28, 0.92) 0%, rgba(16, 58, 36, 0.88) 50%, rgba(10, 46, 28, 0.94) 100%);
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: 2.2rem;
            margin-bottom: 0.8rem;
            max-width: 660px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section p {
            font-size: 1.08rem;
            color: var(--text-mint);
            max-width: 580px;
            margin: 0 auto var(--spacing-md);
            line-height: 1.7;
        }

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

        /* === FAQ === */
        .faq-list {
            max-width: 820px;
            margin: var(--spacing-md) auto 0;
            display: grid;
            gap: 0.8rem;
        }

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

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

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 1.1rem 1.4rem;
            font-weight: 650;
            font-size: 1rem;
            color: var(--text-white);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            transition: color var(--transition-fast);
        }

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

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

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

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

        .faq-item[open] {
            border-color: var(--border-gold-strong);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.08);
        }

        .faq-body {
            padding: 0 1.4rem 1.2rem 1.4rem;
            font-size: 0.92rem;
            color: var(--text-mint);
            line-height: 1.7;
        }

        .faq-body p {
            margin-bottom: 0;
        }

        /* === FOOTER === */
        .site-footer {
            background: #082217;
            border-top: 1px solid var(--border-gold);
            padding: var(--spacing-lg) 0 var(--spacing-sm);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            margin-bottom: var(--spacing-md);
        }

        .footer-col h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.9rem;
            color: var(--accent-gold);
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            gap: 0.45rem;
        }

        .footer-col ul a {
            color: var(--text-mint);
            font-size: 0.9rem;
            transition: color var(--transition-fast), padding-left var(--transition-fast);
            display: inline-block;
        }

        .footer-col ul a:hover {
            color: var(--accent-gold);
            padding-left: 0.3rem;
        }

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.45rem;
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            font-size: 0.82rem;
            font-weight: 650;
            padding: 0.45rem 1rem;
            border-radius: 50px;
            margin-top: 0.7rem;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: var(--spacing-sm);
            text-align: center;
        }

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

        /* === FAB === */
        .fab-lower-left {
            position: fixed;
            left: 1.1rem;
            bottom: 6rem;
            z-index: 50;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, #1A0A0A, #0D0D0D);
            border: 2.5px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.3rem;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3), inset 0 1px 2px rgba(255, 255, 255, 0.2);
            cursor: pointer;
            opacity: 0.7;
            animation: fab-float 3s ease-in-out infinite;
            transition: all var(--transition-base);
            -webkit-tap-highlight-color: transparent;
        }

        .fab-lower-left:hover {
            opacity: 1;
            transform: scale(1.12);
            box-shadow: 0 8px 32px rgba(255, 215, 0, 0.45), inset 0 1px 2px rgba(255, 255, 255, 0.25);
        }

        .fab-lower-left:active {
            transform: scale(0.94) translateY(1px);
            box-shadow: 0 2px 10px rgba(255, 215, 0, 0.25);
        }

        .fab-notification-dot {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #E63946;
            border: 2px solid #0D0D0D;
            animation: fab-blink 1.8s ease-in-out infinite;
        }

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

        @keyframes fab-blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.35; }
        }

        /* === RESPONSIVE === */
        @media screen and (max-width: 1024px) {
            h1 { font-size: 2.3rem; }
            .hero-category h1 { font-size: 2.4rem; }
            .rules-overview-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-grid { grid-template-columns: repeat(2, 1fr); }
            .hand-ranking-layout { grid-template-columns: 1fr; gap: 1.8rem; }
            .hand-ranking-image { min-height: 300px; }
            .hand-ranking-image img { min-height: 300px; }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
        }

        @media screen and (max-width: 768px) {
            body { font-size: 15px; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.6rem; }
            .hero-category h1 { font-size: 2rem; }
            .container { padding-left: 1.1rem; padding-right: 1.1rem; }
            .section { padding: var(--spacing-lg) 0; }

            .nav-toggle {
                display: block;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(10, 46, 28, 0.99);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                gap: 0;
                padding: 1rem 1.5rem;
                border-bottom: 2px solid var(--border-gold-strong);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
            }

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

            .nav-links li {
                width: 100%;
            }

            .nav-links a {
                display: block;
                padding: 0.85rem 0.3rem;
                font-size: 1.02rem;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }

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

            .nav-links li:last-child a {
                border-bottom: none;
            }

            .header-actions {
                gap: 0.5rem;
            }

            .btn-login, .btn-signup {
                padding: 0.45rem 0.85rem;
                font-size: 0.85rem;
            }

            .hero-main-card {
                padding: 1.4rem 1.3rem;
                max-width: 100%;
            }

            .hero-main-card h3 { font-size: 1.3rem; }

            .rules-overview-grid { grid-template-columns: 1fr; gap: 1rem; }

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

            .mistakes-grid { grid-template-columns: 1fr; gap: 0.85rem; }

            .scoring-table { font-size: 0.82rem; }
            .scoring-table th, .scoring-table td { padding: 0.65rem 0.7rem; }

            .cta-section h2 { font-size: 1.7rem; }

            .footer-grid { grid-template-columns: 1fr; gap: 1.4rem; }

            .fab-lower-left {
                width: 46px;
                height: 46px;
                font-size: 1.1rem;
                left: 0.8rem;
                bottom: 5.2rem;
            }

            .logo-brand {
                font-size: 0.95rem;
                white-space: normal;
                max-width: 200px;
                line-height: 1.3;
            }

            .logo-brand i {
                font-size: 1.2rem;
                flex-shrink: 0;
            }
        }

        @media screen and (max-width: 520px) {
            h1 { font-size: 1.7rem; }
            .hero-category h1 { font-size: 1.65rem; }
            h2 { font-size: 1.4rem; }
            .hero-subhead { font-size: 0.95rem; }
            .hero-main-card { padding: 1.1rem 1rem; }
            .hero-main-card h3 { font-size: 1.15rem; }
            .btn-gold-lg, .btn-outline-gold { font-size: 0.85rem; padding: 0.65rem 1.2rem; }
            .hero-rule-chip { font-size: 0.72rem; padding: 0.35rem 0.75rem; }
            .section-header p { font-size: 0.92rem; }
            .rule-card { padding: 1.2rem 1.1rem; }
            .faq-item summary { font-size: 0.92rem; padding: 0.9rem 1rem; }
            .faq-body { padding: 0 1rem 1rem 1rem; font-size: 0.85rem; }
            .cta-section h2 { font-size: 1.4rem; }
            .hand-ranking-image { min-height: 220px; }
            .hand-ranking-image img { min-height: 220px; }
            .image-caption { font-size: 0.75rem; padding: 0.6rem 0.8rem; bottom: 0.7rem; left: 0.7rem; right: 0.7rem; }
            .header-actions .btn-login { display: inline-block; }
            .header-actions .btn-signup { display: inline-block; }
        }

/* roulang page: category2 */
/* ===== Design Variables ===== */
        :root {
            --primary-bg: #0A2E1C;
            --primary-bg-deep: #062315;
            --primary-bg-light: #123E25;
            --primary-bg-card: #0E3522;
            --accent-gold: #FFD700;
            --accent-gold-soft: #D4AC0D;
            --accent-red: #D32F2F;
            --accent-red-bright: #E53935;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #A8C5BB;
            --text-gold: #FEF08A;
            --border-gold: rgba(255, 215, 0, 0.45);
            --border-dark: rgba(255, 215, 0, 0.12);
            --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.35);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.18);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-pill: 50px;
            --spacing-xs: 8px;
            --spacing-sm: 14px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 88px;
            --font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        /* ===== Base Reset ===== */
        * {
            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-family);
            line-height: 1.6;
            color: var(--text-mint);
            background: var(--primary-bg-deep);
            background-image: radial-gradient(circle at 15% 15%, var(--primary-bg-light) 0%, transparent 45%),
                              radial-gradient(circle at 85% 85%, var(--primary-bg-light) 0%, transparent 45%);
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        
        a {
            text-decoration: none;
            color: var(--accent-gold);
            transition: var(--transition);
        }
        
        a:hover {
            color: var(--text-gold);
            opacity: 0.92;
        }
        
        button {
            font-family: var(--font-family);
            cursor: pointer;
            border: none;
            outline: none;
        }
        
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 3px;
        }
        
        input,
        textarea,
        select {
            font-family: var(--font-family);
            border: none;
            outline: none;
        }
        
        h1, h2, h3, h4, h5, h6 {
            color: var(--text-white);
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 0.5em;
            letter-spacing: -0.01em;
        }
        
        h1 {
            font-size: clamp(2rem, 4.5vw, 3.25rem);
            font-weight: 800;
            line-height: 1.15;
            margin-bottom: 0.45em;
        }
        
        h2 {
            font-size: clamp(1.55rem, 3vw, 2.25rem);
            font-weight: 700;
            margin-bottom: 0.5em;
        }
        
        h3 {
            font-size: clamp(1.2rem, 2.2vw, 1.55rem);
            font-weight: 600;
            margin-bottom: 0.4em;
        }
        
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 0.35em;
        }
        
        p {
            margin-bottom: 1em;
            color: var(--text-mint);
            font-size: 1rem;
            line-height: 1.62;
        }
        
        /* ===== Container ===== */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(6, 35, 21, 0.95);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-dark);
            padding: 0;
            min-height: 68px;
            display: flex;
            align-items: center;
        }
        
        .header-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: nowrap;
            width: 100%;
        }
        
        .logo-text {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--accent-gold);
            letter-spacing: -0.01em;
            white-space: nowrap;
            line-height: 1.3;
        }
        
        .logo-text small {
            display: block;
            font-size: 0.65rem;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }
        
        /* Nav Links */
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            flex-wrap: nowrap;
        }
        
        .nav-links li {
            list-style: none;
        }
        
        .nav-links a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: var(--radius-pill);
            transition: var(--transition);
            white-space: nowrap;
            border: 1px solid transparent;
        }
        
        .nav-links a:hover {
            color: var(--text-gold);
            background: rgba(255, 215, 0, 0.08);
            border-color: var(--border-dark);
        }
        
        .nav-links a.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.1);
            border-color: var(--border-gold);
            font-weight: 600;
        }
        
        /* Header Right Actions */
        .header-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
            margin-left: auto;
        }
        
        .btn-login {
            padding: 7px 14px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-mint);
            background: transparent;
            border: 1px solid transparent;
            border-radius: var(--radius-pill);
            transition: var(--transition);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        
        .btn-login:hover {
            color: var(--text-gold);
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--border-dark);
        }
        
        .btn-signup {
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--primary-bg-deep);
            background: linear-gradient(135deg, #FFD700, #F0C000);
            border: 1px solid #FFD700;
            border-radius: var(--radius-pill);
            transition: var(--transition);
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(255, 215, 0, 0.28);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        
        .btn-signup:hover {
            color: var(--primary-bg-deep);
            background: linear-gradient(135deg, #FFE44D, #FFD700);
            box-shadow: 0 6px 20px rgba(255, 215, 0, 0.38);
            transform: translateY(-1px);
        }
        
        /* Mobile Nav Toggle */
        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-dark);
            color: var(--accent-gold);
            font-size: 1.4rem;
            padding: 6px 10px;
            border-radius: 8px;
            cursor: pointer;
            transition: var(--transition);
            line-height: 1;
        }
        
        .nav-toggle:hover {
            background: rgba(255, 215, 0, 0.1);
            border-color: var(--border-gold);
        }
        
        /* ===== Hero Section ===== */
        .hero {
            padding: var(--spacing-xl) 0 var(--spacing-lg);
            background-image: linear-gradient(rgba(10, 46, 28, 0.88), rgba(6, 35, 21, 0.92)), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-dark);
        }
        
        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 80px;
            background: linear-gradient(transparent, var(--primary-bg-deep));
            pointer-events: none;
        }
        
        .hero-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            align-items: center;
            position: relative;
            z-index: 2;
        }
        
        .hero-text-area {
            text-align: left;
        }
        
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-pill);
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }
        
        .hero-text-area h1 {
            color: var(--text-white);
            margin-bottom: 12px;
        }
        
        .hero-text-area h1 .highlight {
            color: var(--accent-gold);
            border-bottom: 3px solid var(--accent-gold);
            padding-bottom: 2px;
        }
        
        .hero-subtitle {
            font-size: 1.05rem;
            color: var(--text-mint);
            margin-bottom: var(--spacing-md);
            max-width: 540px;
            line-height: 1.65;
        }
        
        .hero-cta-group {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: var(--spacing-md);
        }
        
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--primary-bg-deep);
            background: linear-gradient(135deg, #FFD700, #F0C000);
            border: none;
            border-radius: var(--radius-pill);
            transition: var(--transition);
            box-shadow: 0 6px 18px rgba(255, 215, 0, 0.3);
        }
        
        .btn-primary:hover {
            background: linear-gradient(135deg, #FFE44D, #FFD700);
            box-shadow: 0 8px 24px rgba(255, 215, 0, 0.4);
            transform: translateY(-2px);
            color: var(--primary-bg-deep);
        }
        
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 22px;
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--accent-gold);
            background: transparent;
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-pill);
            transition: var(--transition);
        }
        
        .btn-outline:hover {
            background: rgba(255, 215, 0, 0.1);
            color: var(--text-gold);
            border-color: var(--accent-gold);
        }
        
        /* Hero Stats */
        .hero-stats-row {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        
        .hero-stat-item {
            text-align: left;
        }
        
        .hero-stat-value {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            display: block;
            line-height: 1.2;
        }
        
        .hero-stat-label {
            font-size: 0.78rem;
            color: var(--text-muted);
            letter-spacing: 0.02em;
        }
        
        /* Hero Visual Panel */
        .hero-visual-panel {
            position: relative;
            z-index: 2;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        
        .hero-img-wrapper {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 2px solid var(--border-gold);
            box-shadow: var(--shadow-card), var(--shadow-gold);
            max-width: 480px;
            width: 100%;
        }
        
        .hero-img-wrapper::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.12) 0%, transparent 50%, rgba(10, 46, 28, 0.65) 100%);
            border-radius: var(--radius-lg);
            pointer-events: none;
            z-index: 1;
        }
        
        .hero-img-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }
        
        .hero-floating-badge {
            position: absolute;
            bottom: 16px;
            left: 16px;
            z-index: 3;
            padding: 8px 16px;
            background: rgba(10, 46, 28, 0.9);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-pill);
            color: var(--accent-gold);
            font-size: 0.78rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        
        /* ===== Common Section Styles ===== */
        .section {
            padding: var(--spacing-xl) 0;
        }
        
        .section-alt {
            background: var(--primary-bg);
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
        }
        
        .section-header {
            margin-bottom: var(--spacing-lg);
            max-width: 720px;
        }
        
        .section-header h2 {
            color: var(--text-white);
            margin-bottom: 8px;
        }
        
        .section-header p {
            color: var(--text-muted);
            font-size: 1rem;
        }
        
        .section-tag {
            display: inline-block;
            padding: 4px 12px;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
            border-left: 3px solid var(--accent-gold);
            border-radius: 0 6px 6px 0;
            margin-bottom: 10px;
        }
        
        /* ===== Info Cards Grid ===== */
        .info-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
            gap: var(--spacing-md);
        }
        
        .info-card {
            background: var(--primary-bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        
        .info-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), transparent);
            opacity: 0;
            transition: var(--transition);
        }
        
        .info-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-card);
            transform: translateY(-3px);
        }
        
        .info-card:hover::before {
            opacity: 1;
        }
        
        .info-card-icon {
            width: 50px;
            height: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
            border-radius: 12px;
            margin-bottom: 12px;
            border: 1px solid var(--border-dark);
        }
        
        .info-card h3 {
            font-size: 1.12rem;
            margin-bottom: 6px;
            color: var(--text-white);
        }
        
        .info-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        
        /* ===== Principle List ===== */
        .principle-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--spacing-md);
        }
        
        .principle-item {
            background: var(--primary-bg-card);
            border-left: 3px solid var(--accent-gold);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            padding: var(--spacing-md);
            transition: var(--transition);
        }
        
        .principle-item:hover {
            background: var(--primary-bg-light);
            border-left-color: var(--text-gold);
            box-shadow: var(--shadow-card);
        }
        
        .principle-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1;
            margin-bottom: 8px;
            display: block;
        }
        
        .principle-item h3 {
            font-size: 1.05rem;
            margin-bottom: 6px;
        }
        
        .principle-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        
        /* ===== Steps Timeline ===== */
        .steps-timeline {
            position: relative;
            padding-left: 34px;
            border-left: 2px dashed var(--border-gold);
            margin-left: 8px;
        }
        
        .step-item {
            position: relative;
            margin-bottom: var(--spacing-lg);
            padding-left: 16px;
        }
        
        .step-item:last-child {
            margin-bottom: 0;
        }
        
        .step-dot {
            position: absolute;
            left: -42px;
            top: 4px;
            width: 16px;
            height: 16px;
            background: var(--accent-gold);
            border: 3px solid var(--primary-bg-deep);
            border-radius: 50%;
            box-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
        }
        
        .step-item h3 {
            font-size: 1.1rem;
            margin-bottom: 4px;
        }
        
        .step-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        
        /* ===== Error List ===== */
        .error-list {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: var(--spacing-sm);
        }
        
        .error-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            background: rgba(211, 47, 47, 0.08);
            border: 1px solid rgba(211, 47, 47, 0.25);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            font-size: 0.9rem;
            color: var(--text-mint);
            transition: var(--transition);
        }
        
        .error-list li:hover {
            background: rgba(211, 47, 47, 0.14);
            border-color: rgba(211, 47, 47, 0.45);
        }
        
        .error-list li i {
            color: var(--accent-red-bright);
            font-size: 1rem;
            margin-top: 2px;
            flex-shrink: 0;
        }
        
        /* ===== Method Cards ===== */
        .method-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--spacing-md);
        }
        
        .method-card {
            background: var(--primary-bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        
        .method-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-card);
            transform: translateY(-3px);
        }
        
        .method-card .method-tag {
            display: inline-block;
            padding: 3px 10px;
            font-size: 0.68rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            color: var(--primary-bg-deep);
            background: var(--accent-gold);
            border-radius: 4px;
            align-self: flex-start;
        }
        
        .method-card h3 {
            font-size: 1.15rem;
            margin-bottom: 2px;
        }
        
        .method-card p {
            font-size: 0.89rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        
        .method-card .method-highlight {
            font-weight: 600;
            color: var(--accent-gold);
        }
        
        /* ===== FAQ Accordion ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        
        .faq-item {
            background: var(--primary-bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-sm);
            margin-bottom: 10px;
            overflow: hidden;
            transition: var(--transition);
        }
        
        .faq-item:hover {
            border-color: var(--border-gold);
        }
        
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-white);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
            line-height: 1.4;
        }
        
        .faq-question:hover {
            color: var(--text-gold);
        }
        
        .faq-question i {
            color: var(--accent-gold);
            font-size: 0.85rem;
            transition: var(--transition);
            flex-shrink: 0;
        }
        
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            padding: 0 20px;
        }
        
        .faq-item.open .faq-answer {
            max-height: 350px;
            padding: 0 20px 18px;
        }
        
        .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        
        /* ===== CTA Section ===== */
        .cta-section {
            padding: var(--spacing-xl) 0;
            background: linear-gradient(135deg, var(--primary-bg-light), var(--primary-bg-deep));
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
            text-align: center;
        }
        
        .cta-inner {
            max-width: 720px;
            margin: 0 auto;
        }
        
        .cta-inner h2 {
            font-size: clamp(1.5rem, 3vw, 2.15rem);
            margin-bottom: 10px;
        }
        
        .cta-inner p {
            font-size: 1rem;
            color: var(--text-muted);
            margin-bottom: var(--spacing-md);
        }
        
        .cta-buttons {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }
        
        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-bg-deep);
            border-top: 1px solid var(--border-dark);
            padding: var(--spacing-lg) 0 var(--spacing-md);
            color: var(--text-muted);
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }
        
        .footer-col h4 {
            color: var(--accent-gold);
            font-size: 1rem;
            margin-bottom: 12px;
        }
        
        .footer-col ul {
            list-style: none;
        }
        
        .footer-col ul li {
            margin-bottom: 7px;
        }
        
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.88rem;
            transition: var(--transition);
        }
        
        .footer-col ul li a:hover {
            color: var(--text-gold);
            padding-left: 4px;
        }
        
        .footer-col p {
            font-size: 0.85rem;
            line-height: 1.55;
            color: var(--text-muted);
        }
        
        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-pill);
            margin-top: 8px;
        }
        
        .footer-bottom {
            border-top: 1px solid var(--border-dark);
            padding-top: var(--spacing-md);
            text-align: center;
        }
        
        .footer-bottom p {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        
        /* ===== FAB ===== */
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 998;
            width: 54px;
            height: 54px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #1C1C1E, #0F0F12);
            border: 2px solid var(--accent-gold);
            border-radius: 50%;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3), inset 0 1px 3px rgba(255, 215, 0, 0.2);
            transition: var(--transition);
            cursor: pointer;
            opacity: 0.72;
            animation: fabBreath 3s ease-in-out infinite;
        }
        
        .fab-left:hover {
            opacity: 1;
            transform: scale(1.08);
            box-shadow: 0 6px 26px rgba(255, 215, 0, 0.45), inset 0 1px 4px rgba(255, 215, 0, 0.3);
        }
        
        .fab-left:active {
            transform: scale(0.94) translateY(2px);
        }
        
        .fab-left i {
            font-size: 1.25rem;
            color: var(--accent-gold);
            transition: var(--transition);
        }
        
        .fab-left:hover i {
            transform: rotate(360deg);
            transition: transform 0.5s ease;
        }
        
        .fab-notification-dot {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            background: #E53935;
            border: 2px solid var(--primary-bg-deep);
            border-radius: 50%;
            animation: blinkRed 1.6s ease-in-out infinite;
        }
        
        @keyframes fabBreath {
            0%, 100% { transform: translateY(0); opacity: 0.72; }
            50% { transform: translateY(-6px); opacity: 0.9; }
        }
        
        @keyframes blinkRed {
            0%, 100% { opacity: 1; box-shadow: 0 0 4px rgba(229, 57, 53, 0.7); }
            50% { opacity: 0.4; box-shadow: 0 0 10px rgba(229, 57, 53, 0.3); }
        }
        
        /* ===== Responsive Breakpoints ===== */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                text-align: left;
                gap: var(--spacing-md);
            }
            
            .hero-text-area {
                text-align: left;
            }
            
            .hero-cta-group {
                justify-content: flex-start;
            }
            
            .hero-visual-panel {
                justify-content: flex-start;
            }
            
            .hero-img-wrapper {
                max-width: 100%;
            }
            
            .section {
                padding: var(--spacing-lg) 0;
            }
        }
        
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: nowrap;
                gap: 10px;
            }
            
            .logo-text {
                font-size: 0.95rem;
                white-space: normal;
                line-height: 1.25;
            }
            
            .logo-text small {
                font-size: 0.58rem;
            }
            
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: rgba(6, 35, 21, 0.98);
                border-bottom: 1px solid var(--border-dark);
                padding: 12px 16px;
                gap: 4px;
                z-index: 100;
            }
            
            .nav-links.mobile-open {
                display: flex;
            }
            
            .nav-links a {
                padding: 10px 14px;
                font-size: 0.9rem;
                width: 100%;
                border-radius: 8px;
                display: block;
            }
            
            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
                flex-shrink: 0;
            }
            
            .btn-login {
                padding: 6px 10px;
                font-size: 0.78rem;
            }
            
            .btn-signup {
                padding: 7px 12px;
                font-size: 0.78rem;
            }
            
            .hero {
                padding: var(--spacing-lg) 0 var(--spacing-md);
            }
            
            .hero h1 {
                font-size: 1.8rem;
            }
            
            .hero-subtitle {
                font-size: 0.95rem;
            }
            
            .hero-stats-row {
                gap: 12px;
            }
            
            .hero-stat-value {
                font-size: 1.25rem;
            }
            
            .info-grid,
            .principle-list,
            .method-grid,
            .error-list {
                grid-template-columns: 1fr;
            }
            
            .section {
                padding: var(--spacing-md) 0;
            }
            
            .section-header h2 {
                font-size: 1.4rem;
            }
            
            .steps-timeline {
                padding-left: 24px;
                margin-left: 4px;
            }
            
            .step-dot {
                left: -32px;
                width: 12px;
                height: 12px;
            }
            
            .faq-question {
                padding: 13px 16px;
                font-size: 0.88rem;
            }
            
            .faq-answer p {
                font-size: 0.85rem;
            }
            
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-md);
            }
            
            .fab-left {
                width: 46px;
                height: 46px;
                left: 10px;
                bottom: 80px;
            }
            
            .fab-left i {
                font-size: 1.1rem;
            }
        }
        
        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            
            .logo-text {
                font-size: 0.85rem;
            }
            
            .logo-text small {
                font-size: 0.52rem;
            }
            
            .btn-login {
                font-size: 0.72rem;
                padding: 5px 8px;
            }
            
            .btn-signup {
                font-size: 0.72rem;
                padding: 6px 10px;
            }
            
            .hero h1 {
                font-size: 1.55rem;
            }
            
            .hero-subtitle {
                font-size: 0.88rem;
            }
            
            .hero-cta-group {
                flex-direction: column;
                align-items: flex-start;
                width: 100%;
            }
            
            .btn-primary,
            .btn-outline {
                width: 100%;
                justify-content: center;
                padding: 11px 18px;
                font-size: 0.88rem;
            }
            
            .hero-stats-row {
                flex-wrap: wrap;
                gap: 10px;
            }
            
            .hero-stat-value {
                font-size: 1.1rem;
            }
            
            .hero-stat-label {
                font-size: 0.7rem;
            }
            
            .hero-img-wrapper {
                border-radius: var(--radius-md);
            }
            
            .hero-img-wrapper::before {
                border-radius: var(--radius-md);
            }
            
            .hero-img-wrapper img {
                border-radius: var(--radius-md);
            }
            
            .hero-floating-badge {
                bottom: 10px;
                left: 10px;
                padding: 5px 10px;
                font-size: 0.68rem;
            }
            
            .method-card,
            .info-card {
                padding: var(--spacing-sm);
            }
            
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-sm);
            }
            
            .fab-left {
                width: 40px;
                height: 40px;
                left: 8px;
                bottom: 70px;
                border-radius: 50%;
            }
            
            .fab-left i {
                font-size: 1rem;
            }
            
            .fab-notification-dot {
                width: 9px;
                height: 9px;
                top: 1px;
                right: 1px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #121212;
            --bg-secondary: #1C1C1E;
            --bg-tertiary: #232327;
            --bg-card: #1A1A1D;
            --accent-bronze: #C5A059;
            --accent-gold: #FFBF00;
            --accent-muted-gold: #D4AC0D;
            --text-white: #F5F5F7;
            --text-muted: #A6A6AD;
            --text-gold: #D4AC0D;
            --border-subtle: rgba(197, 160, 89, 0.25);
            --border-gold: rgba(197, 160, 89, 0.5);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-gold-glow: 0 0 24px rgba(197, 160, 89, 0.2);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --font-sans: 'Be Vietnam Pro', sans-serif;
            --font-serif: 'Playfair Display', serif;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.35s ease;
            --transition-slow: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
            --container-max: 1200px;
            --header-height: 76px;
        }

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

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

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

        body::before {
            content: '';
            position: fixed;
            inset: 0;
            background: radial-gradient(ellipse at 50% 0%, rgba(197, 160, 89, 0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 20%, rgba(255, 191, 0, 0.04) 0%, transparent 45%),
                radial-gradient(ellipse at 20% 80%, rgba(197, 160, 89, 0.05) 0%, transparent 40%);
            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-bronze);
        }

        button {
            cursor: pointer;
            font-family: var(--font-sans);
        }

        :focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 3px;
        }

        ::selection {
            background: rgba(197, 160, 89, 0.35);
            color: #fff;
        }

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

        /* === HEADER === */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: rgba(18, 18, 18, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            z-index: 1000;
            transition: background var(--transition-normal), box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            background: rgba(18, 18, 18, 0.96);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.05rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.02em;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

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

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: #121212;
            flex-shrink: 0;
            box-shadow: 0 0 16px rgba(197, 160, 89, 0.35);
        }

        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .logo-text .brand-main {
            font-size: 1rem;
            font-weight: 800;
            color: var(--text-white);
        }

        .logo-text .brand-sub {
            font-size: 0.65rem;
            font-weight: 400;
            color: var(--text-muted);
            letter-spacing: 0.04em;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            position: relative;
            letter-spacing: -0.01em;
        }

        .nav-links li a:hover {
            color: var(--text-white);
            background: rgba(197, 160, 89, 0.12);
        }

        .nav-links li a.active {
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.15);
            font-weight: 600;
        }

        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
        }

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

        .btn-login {
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-white);
            background: transparent;
            border: none;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            letter-spacing: -0.01em;
        }

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

        .btn-signup {
            padding: 9px 22px;
            font-size: 0.85rem;
            font-weight: 700;
            color: #121212;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-bronze));
            border: none;
            border-radius: var(--radius-sm);
            box-shadow: 0 2px 12px rgba(255, 191, 0, 0.35);
            transition: all var(--transition-fast);
            letter-spacing: -0.01em;
        }

        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 24px rgba(255, 191, 0, 0.5);
            color: #121212;
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-subtle);
            color: var(--text-white);
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            font-size: 1.1rem;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .mobile-toggle:hover {
            border-color: var(--accent-bronze);
            color: var(--accent-gold);
        }

        /* === HERO === */
        .hero {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            margin-top: var(--header-height);
            overflow: hidden;
            background: var(--bg-secondary);
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            filter: brightness(0.35) saturate(0.9);
            z-index: 0;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(18, 18, 18, 0.6) 0%, rgba(18, 18, 18, 0.85) 60%, rgba(18, 18, 18, 0.95) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding: 70px 0 80px;
            max-width: 720px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background: rgba(197, 160, 89, 0.15);
            border: 1px solid var(--border-gold);
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--accent-gold);
            margin-bottom: 22px;
            letter-spacing: 0.03em;
        }

        .hero-badge i {
            font-size: 0.7rem;
        }

        .hero h1 {
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.03em;
            margin-bottom: 18px;
            color: var(--text-white);
        }

        .hero h1 .gold-text {
            color: var(--accent-gold);
            font-style: italic;
        }

        .hero-sub {
            font-size: 1.05rem;
            font-weight: 400;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 30px;
            max-width: 600px;
        }

        .hero-video-wrapper {
            position: relative;
            margin-bottom: 30px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
            aspect-ratio: 16/7;
            max-width: 600px;
        }

        .hero-video-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            filter: brightness(0.55);
        }

        .video-play-btn {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 68px;
            height: 68px;
            border-radius: 50%;
            background: rgba(255, 191, 0, 0.9);
            border: 3px solid rgba(255, 255, 255, 0.6);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: #121212;
            transition: all var(--transition-normal);
            cursor: pointer;
            box-shadow: 0 0 40px rgba(255, 191, 0, 0.4);
        }

        .video-play-btn:hover {
            transform: translate(-50%, -50%) scale(1.08);
            box-shadow: 0 0 56px rgba(255, 191, 0, 0.6);
            background: rgba(255, 191, 0, 1);
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            font-size: 0.95rem;
            font-weight: 700;
            color: #121212;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-bronze));
            border: none;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 20px rgba(255, 191, 0, 0.35);
            transition: all var(--transition-normal);
            letter-spacing: -0.01em;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(255, 191, 0, 0.5);
            color: #121212;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-white);
            background: transparent;
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-sm);
            transition: all var(--transition-normal);
            letter-spacing: -0.01em;
        }

        .btn-outline:hover {
            background: rgba(197, 160, 89, 0.12);
            border-color: var(--accent-gold);
            color: var(--accent-gold);
        }

        /* === SECTION GENERAL === */
        section {
            padding: 60px 0;
            position: relative;
            z-index: 1;
        }

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

        .section-label {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-gold);
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.02em;
            color: var(--text-white);
            margin-bottom: 14px;
        }

        .section-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.65;
            max-width: 680px;
            margin-bottom: 36px;
        }

        .section-divider {
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-bronze));
            border-radius: 3px;
            margin-bottom: 20px;
        }

        /* === VALUE PROPOSITION === */
        .value-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 10px;
        }

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

        .value-item::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-normal);
        }

        .value-item:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold-glow);
            transform: translateY(-3px);
        }

        .value-item:hover::before {
            opacity: 1;
        }

        .value-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            background: rgba(197, 160, 89, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent-gold);
            margin-bottom: 16px;
        }

        .value-item h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-white);
        }

        .value-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* === TACTIC GROUPS === */
        .tactic-list {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }

        .tactic-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: center;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: all var(--transition-normal);
        }

        .tactic-row:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold-glow);
        }

        .tactic-row.reverse {
            direction: rtl;
        }

        .tactic-row.reverse > * {
            direction: ltr;
        }

        .tactic-image img {
            border-radius: var(--radius-md);
            width: 100%;
            height: 240px;
            object-fit: cover;
            border: 1px solid var(--border-subtle);
        }

        .tactic-content h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-white);
        }

        .tactic-content p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 14px;
        }

        .tactic-tag {
            display: inline-block;
            padding: 4px 12px;
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.12);
            border-radius: 50px;
            letter-spacing: 0.04em;
        }

        /* === STRATEGY PROCESS === */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 18px;
            counter-reset: step;
        }

        .process-step {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            position: relative;
            transition: all var(--transition-normal);
        }

        .process-step:hover {
            border-color: var(--border-gold);
            transform: translateY(-4px);
            box-shadow: var(--shadow-gold-glow);
        }

        .process-step .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-bronze));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 800;
            color: #121212;
            margin: 0 auto 14px;
            box-shadow: 0 4px 16px rgba(255, 191, 0, 0.3);
        }

        .process-step h4 {
            font-size: 0.9rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-white);
        }

        .process-step p {
            font-size: 0.78rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* === STATS === */
        .stats-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            background: linear-gradient(135deg, var(--bg-card), var(--bg-tertiary));
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
        }

        .stat-item .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-gold);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }

        .stat-item .stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* === SCENARIOS === */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .scenario-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            transition: all var(--transition-normal);
        }

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

        .scenario-card h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .scenario-card h4 i {
            color: var(--accent-gold);
            font-size: 0.9rem;
        }

        .scenario-card p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* === TIPS HIGHLIGHT === */
        .tips-highlight {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: stretch;
        }

        .tips-highlight-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
        }

        .tips-highlight-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 300px;
        }

        .tips-highlight-content {
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 16px;
        }

        .tip-check-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 16px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border-left: 3px solid var(--accent-gold);
            transition: all var(--transition-fast);
        }

        .tip-check-item:hover {
            background: var(--bg-tertiary);
            border-left-color: var(--accent-bronze);
        }

        .tip-check-item i {
            color: var(--accent-gold);
            font-size: 0.9rem;
            margin-top: 3px;
            flex-shrink: 0;
        }

        .tip-check-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.55;
        }

        .tip-check-item strong {
            color: var(--text-white);
            font-weight: 600;
        }

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

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

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

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-white);
            cursor: pointer;
            list-style: none;
            user-select: none;
            transition: all var(--transition-fast);
        }

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

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

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

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

        .faq-item .faq-answer {
            padding: 0 20px 18px;
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* === CTA === */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 50%, var(--bg-secondary) 100%);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 50px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(197, 160, 89, 0.12) 0%, transparent 60%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 0.9rem;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto 26px;
            line-height: 1.6;
            position: relative;
            z-index: 1;
        }

        .cta-section .btn-primary {
            position: relative;
            z-index: 1;
            font-size: 1rem;
            padding: 16px 38px;
        }

        /* === FOOTER === */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: 50px 0 24px;
            position: relative;
            z-index: 1;
            margin-top: 20px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1.5fr;
            gap: 36px;
            margin-bottom: 32px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

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

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 0.82rem;
            color: var(--text-muted);
            transition: all var(--transition-fast);
        }

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

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.12);
            border: 1px solid var(--border-subtle);
            border-radius: 50px;
            margin-top: 10px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 18px;
            text-align: center;
        }

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

        /* === FAB === */
        .fab-float {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 900;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 54px;
            height: 54px;
            border-radius: 50%;
            background: rgba(18, 18, 18, 0.7);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            cursor: pointer;
            opacity: 0.6;
            transition: all var(--transition-normal);
            box-shadow: 0 0 18px rgba(197, 160, 89, 0.3);
        }

        .fab-float::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 50%;
            padding: 2px;
            background: linear-gradient(135deg, rgba(197, 160, 89, 0.6), rgba(255, 191, 0, 0.3), rgba(197, 160, 89, 0.6));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
        }

        .fab-float i {
            font-size: 1.3rem;
            color: var(--accent-gold);
            transition: all var(--transition-normal);
        }

        .fab-float:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 32px rgba(197, 160, 89, 0.55);
        }

        .fab-float:hover i {
            transform: rotate(360deg);
            transition: transform 0.6s ease;
        }

        .fab-float:active {
            transform: scale(0.95);
            box-shadow: 0 0 12px rgba(197, 160, 89, 0.4);
        }

        .fab-notification {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #FF4444;
            border: 2px solid #121212;
            animation: fab-blink 1.6s ease-in-out infinite;
        }

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

        /* === RESPONSIVE === */
        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 2.1rem;
            }
            .value-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 14px;
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .hero {
                min-height: 480px;
            }
            .hero-content {
                padding: 48px 0 56px;
            }
            .hero h1 {
                font-size: 1.7rem;
            }
            .hero-sub {
                font-size: 0.92rem;
            }
            .hero-video-wrapper {
                aspect-ratio: 16/9;
            }
            .mobile-toggle {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                flex-direction: column;
                background: rgba(18, 18, 18, 0.98);
                backdrop-filter: blur(20px);
                border-bottom: 1px solid var(--border-subtle);
                padding: 16px 20px;
                gap: 4px;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.4s ease;
                display: flex;
            }
            .nav-links.open {
                max-height: 360px;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
            }
            .nav-links li a {
                display: block;
                padding: 12px 14px;
                font-size: 0.9rem;
                width: 100%;
            }
            .nav-links li a.active::after {
                display: none;
            }
            .header-actions {
                gap: 6px;
            }
            .btn-login {
                padding: 7px 12px;
                font-size: 0.8rem;
            }
            .btn-signup {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
            section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .value-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .tactic-row,
            .tactic-row.reverse {
                grid-template-columns: 1fr;
                direction: ltr;
                padding: 20px;
                gap: 18px;
            }
            .tactic-row.reverse > * {
                direction: ltr;
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
                padding: 22px 16px;
            }
            .stat-item .stat-number {
                font-size: 1.5rem;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .tips-highlight {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .tips-highlight-image img {
                min-height: 200px;
            }
            .cta-section {
                padding: 36px 22px;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .fab-float {
                width: 48px;
                height: 48px;
                left: 12px;
                bottom: 80px;
            }
            .fab-float i {
                font-size: 1.1rem;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.45rem;
                line-height: 1.3;
            }
            .hero-badge {
                font-size: 0.7rem;
                padding: 5px 12px;
            }
            .hero-sub {
                font-size: 0.85rem;
            }
            .btn-primary,
            .btn-outline {
                padding: 12px 20px;
                font-size: 0.85rem;
                width: 100%;
                justify-content: center;
            }
            .hero-cta-group {
                flex-direction: column;
                width: 100%;
            }
            .process-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .process-step {
                padding: 18px 14px;
            }
            .process-step .step-number {
                width: 36px;
                height: 36px;
                font-size: 0.9rem;
            }
            .stats-strip {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
                padding: 18px 12px;
            }
            .stat-item .stat-number {
                font-size: 1.3rem;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .section-desc {
                font-size: 0.85rem;
            }
            .logo-text .brand-sub {
                display: none;
            }
            .logo {
                font-size: 0.9rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.8rem;
            }
        }