/* roulang page: index */
:root {
            --bg-deep-jade: #0A2E1C;
            --bg-forest: #123E25;
            --bg-dark-charcoal: #0B0F0C;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-pale-mint: #D1F2EB;
            --text-muted-gold: #D4AC0D;
            --text-gray: #A6ACAF;
            --border-gold: #C5A059;
            --shadow-gold-glow: 0 4px 20px rgba(255, 215, 0, 0.3);
            --shadow-soft: 0 8px 30px rgba(0, 0, 0, 0.25);
            --radius-lg: 1rem;
            --radius-md: 0.75rem;
            --radius-sm: 0.5rem;
            --spacing-section: 5rem;
            --font-primary: 'Be Vietnam Pro', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-display: 'Playfair Display', 'Be Vietnam Pro', serif;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

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

        /* Add Google Fonts for Vietnamese support */
        @import url('/assets/css/vendor/9723b7396f-css2.css');

        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* ---------- Header / Navbar ---------- */
        .fixed-top {
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }

        .navbar {
            background: rgba(10, 46, 28, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(255, 215, 0, 0.2);
            padding: 0.75rem 0;
            transition: all 0.3s ease;
        }

        .navbar.scrolled {
            background: rgba(10, 46, 28, 0.98);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 800;
            color: var(--accent-gold) !important;
            font-size: 1.35rem;
            letter-spacing: 0.02em;
            text-decoration: none;
            transition: color 0.2s;
        }

        .navbar-brand:hover,
        .navbar-brand:focus {
            color: #FFF3B0 !important;
        }

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

        .navbar-nav .nav-link {
            color: var(--text-pale-mint) !important;
            font-weight: 500;
            padding: 0.5rem 1rem;
            margin: 0 0.15rem;
            border-radius: 0.375rem;
            transition: all 0.2s;
        }

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

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

        .navbar .btn-auth {
            font-weight: 600;
            border-radius: 2rem;
            padding: 0.5rem 1.25rem;
            transition: all 0.3s;
            margin-left: 0.35rem;
        }

        .btn-login {
            background: transparent;
            border: 1px solid rgba(255, 215, 0, 0.5);
            color: var(--accent-gold);
        }

        .btn-login:hover,
        .btn-login:focus {
            background: rgba(255, 215, 0, 0.15);
            border-color: var(--accent-gold);
            color: #FFF3B0;
        }

        .btn-signup {
            background: var(--accent-gold);
            border: 1px solid var(--accent-gold);
            color: #0A2E1C;
        }

        .btn-signup:hover,
        .btn-signup:focus {
            background: #FFE44D;
            border-color: #FFE44D;
            color: #0A2E1C;
            transform: translateY(-1px);
            box-shadow: 0 6px 14px rgba(255, 215, 0, 0.3);
        }

        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: rgba(10, 46, 28, 0.98);
                padding: 1rem;
                border-radius: 0 0 1rem 1rem;
                border: 1px solid rgba(255, 215, 0, 0.2);
                margin-top: 0.5rem;
            }
            .navbar-nav .nav-link {
                padding: 0.75rem 1rem;
            }
            .navbar .d-flex.align-items-center {
                margin-top: 0.75rem;
                justify-content: flex-start;
                width: 100%;
            }
            .navbar .btn-auth {
                padding: 0.75rem 1.5rem;
            }
        }

        @media (max-width: 575.98px) {
            .navbar-brand {
                font-size: 1.1rem;
                letter-spacing: 0;
            }
            .navbar .btn-auth {
                padding: 0.5rem 1rem;
                font-size: 0.85rem;
            }
        }

        /* ---------- Hero ---------- */
        .hero-section {
            background-image: linear-gradient(to bottom, rgba(10, 46, 28, 0.85), rgba(18, 62, 37, 0.9)), url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            padding-top: 6rem;
            padding-bottom: 3rem;
            min-height: 70vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-red), var(--accent-gold));
        }

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

        .hero-badge {
            display: inline-block;
            background: rgba(255, 215, 0, 0.15);
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            font-size: 0.85rem;
            font-weight: 600;
            padding: 0.4rem 1rem;
            border-radius: 2rem;
            margin-bottom: 1.25rem;
            letter-spacing: 0.03em;
        }

        .hero-title {
            font-family: var(--font-display);
            font-size: 2.8rem;
            font-weight: 900;
            color: #FFFDF0;
            line-height: 1.15;
            margin-bottom: 1.25rem;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
        }

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

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-pale-mint);
            max-width: 700px;
            margin-bottom: 2rem;
        }

        .hero-cta .btn {
            padding: 0.9rem 1.75rem;
            font-weight: 600;
            font-size: 1.1rem;
            border-radius: 2rem;
            margin-right: 0.75rem;
            transition: all 0.3s;
        }

        .btn-gold {
            background: var(--accent-gold);
            color: #0A2E1C;
            border: 2px solid var(--accent-gold);
        }

        .btn-gold:hover,
        .btn-gold:focus {
            background: #FFE44D;
            border-color: #FFE44D;
            color: #0A2E1C;
            box-shadow: 0 8px 20px rgba(255, 215, 0, 0.35);
            transform: translateY(-2px);
        }

        .btn-outline-mint {
            border: 2px solid var(--text-pale-mint);
            color: var(--text-pale-mint);
            background: transparent;
        }

        .btn-outline-mint:hover,
        .btn-outline-mint:focus {
            background: rgba(209, 242, 235, 0.1);
            border-color: #FFF;
            color: #FFF;
        }

        .hero-demo-card {
            background: rgba(0, 0, 0, 0.45);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 215, 0, 0.3);
            border-radius: 1rem;
            padding: 1.75rem;
            box-shadow: var(--shadow-soft);
            transition: transform 0.3s;
        }

        .hero-demo-card:hover {
            transform: translateY(-5px);
        }

        .demo-score-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 1.1rem;
        }

        .demo-score-label {
            font-size: 0.9rem;
            color: var(--text-pale-mint);
        }

        .demo-score-value {
            font-weight: 700;
            color: var(--accent-gold);
            font-size: 1rem;
        }

        .demo-progress {
            height: 8px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 4px;
            margin-bottom: 0.5rem;
            overflow: hidden;
        }

        .demo-progress-bar {
            background: linear-gradient(90deg, #FFD700, #FF9F00);
            height: 100%;
            border-radius: 4px;
            transition: width 1.5s ease;
        }

        .demo-card-footer {
            border-top: 1px solid rgba(255, 215, 0, 0.2);
            padding-top: 1rem;
            margin-top: 1rem;
            font-size: 0.9rem;
            color: var(--text-pale-mint);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        @media (max-width: 991.98px) {
            .hero-section {
                padding-top: 5rem;
                min-height: auto;
                padding-bottom: 2rem;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-demo-card {
                margin-top: 2rem;
            }
        }

        @media (max-width: 575.98px) {
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-cta .btn {
                display: block;
                width: 100%;
                margin-bottom: 0.75rem;
                margin-right: 0;
            }
        }

        /* ---------- General Sections ---------- */
        .section-padding {
            padding: var(--spacing-section) 0;
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.1);
            padding: 0.35rem 1rem;
            border-radius: 2rem;
            margin-bottom: 1rem;
        }

        .section-title {
            font-family: var(--font-display);
            font-size: 2.2rem;
            font-weight: 800;
            color: #FFF;
            margin-bottom: 1rem;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-pale-mint);
            max-width: 750px;
            margin-bottom: 2.5rem;
        }

        .card-custom {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            transition: all 0.3s;
            height: 100%;
        }

        .card-custom:hover {
            background: rgba(255, 215, 0, 0.06);
            border-color: rgba(255, 215, 0, 0.5);
            transform: translateY(-4px);
            box-shadow: var(--shadow-gold-glow);
        }

        .icon-circle {
            width: 3rem;
            height: 3rem;
            background: rgba(255, 215, 0, 0.15);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.5rem;
            margin-bottom: 1.25rem;
        }

        .card-custom h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #FFF;
            margin-bottom: 0.75rem;
        }

        .card-custom p {
            color: var(--text-pale-mint);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ---------- Benefit Items (试用权益) ---------- */
        .benefit-item {
            display: flex;
            align-items: flex-start;
            gap: 1.25rem;
            padding: 1.5rem 0;
            border-bottom: 1px solid rgba(255, 215, 0, 0.15);
        }

        .benefit-item:last-child {
            border-bottom: none;
        }

        .benefit-number {
            font-weight: 800;
            font-size: 1.5rem;
            color: var(--accent-gold);
            min-width: 3rem;
        }

        .benefit-content h4 {
            color: #FFF;
            font-weight: 600;
            margin-bottom: 0.25rem;
        }

        .benefit-content p {
            color: var(--text-pale-mint);
            margin-bottom: 0;
        }

        /* ---------- Steps / Scenario ---------- */
        .step-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }

        .step-card:hover {
            border-color: rgba(255, 215, 0, 0.6);
            background: rgba(255, 215, 0, 0.05);
        }

        .step-number {
            font-size: 2.5rem;
            font-weight: 900;
            color: rgba(255, 215, 0, 0.25);
            line-height: 1;
            margin-bottom: 0.5rem;
        }

        .step-card h5 {
            color: var(--accent-gold);
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

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

        /* ---------- Guarantee Strip ---------- */
        .guarantee-strip {
            background: rgba(255, 215, 0, 0.05);
            border-top: 1px solid rgba(255, 215, 0, 0.2);
            border-bottom: 1px solid rgba(255, 215, 0, 0.2);
            padding: 1.25rem 0;
        }

        .guarantee-item {
            text-align: center;
            padding: 1rem;
        }

        .guarantee-item i {
            font-size: 2.2rem;
            color: var(--accent-gold);
            margin-bottom: 0.75rem;
        }

        .guarantee-item h6 {
            font-weight: 600;
            color: #FFF;
            margin-bottom: 0.25rem;
        }

        .guarantee-item span {
            color: var(--text-pale-mint);
            font-size: 0.85rem;
        }

        /* ---------- News / CMS List ---------- */
        .news-list .news-item {
            display: flex;
            justify-content: space-between;
            padding: 1.1rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            transition: all 0.2s;
            text-decoration: none;
            color: inherit;
        }

        .news-list .news-item:hover {
            padding-left: 0.5rem;
            background: rgba(255, 215, 0, 0.03);
            border-left: 3px solid var(--accent-gold);
        }

        .news-title {
            font-weight: 600;
            color: #FFF;
            font-size: 1.05rem;
        }

        .news-meta {
            color: var(--text-gray);
            font-size: 0.85rem;
            white-space: nowrap;
            margin-left: 1rem;
        }

        .news-excerpt {
            color: var(--text-pale-mint);
            font-size: 0.9rem;
            margin-top: 0.25rem;
        }

        .news-empty {
            padding: 2rem;
            text-align: center;
            color: var(--text-gray);
            border: 1px dashed rgba(255, 215, 0, 0.3);
            border-radius: 0.5rem;
        }

        /* ---------- Changelog ---------- */
        .changelog-item {
            border-left: 3px solid var(--accent-gold);
            padding-left: 1.5rem;
            margin-left: 0.5rem;
            margin-bottom: 1.5rem;
            position: relative;
        }

        .changelog-item::before {
            content: '';
            position: absolute;
            left: -0.55rem;
            top: 0.25rem;
            width: 0.8rem;
            height: 0.8rem;
            background: var(--accent-gold);
            border-radius: 50%;
            box-shadow: 0 0 10px rgba(255, 215, 0, 0.7);
        }

        .changelog-item h5 {
            color: #FFF;
            font-weight: 600;
            margin-bottom: 0.35rem;
        }

        .changelog-item .changelog-date {
            display: inline-block;
            background: rgba(255, 215, 0, 0.15);
            color: var(--accent-gold);
            font-size: 0.75rem;
            padding: 0.2rem 0.6rem;
            border-radius: 1rem;
            margin-bottom: 0.5rem;
        }

        .changelog-item p {
            color: var(--text-pale-mint);
            font-size: 0.92rem;
        }

        /* ---------- FAQ ---------- */
        .accordion-item {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 215, 0, 0.2);
            margin-bottom: 0.75rem;
            border-radius: 0.5rem !important;
            overflow: hidden;
        }

        .accordion-button {
            background: transparent;
            color: #FFF;
            font-weight: 600;
            font-size: 1rem;
            padding: 1.25rem 1.5rem;
        }

        .accordion-button:not(.collapsed) {
            background: rgba(255, 215, 0, 0.08);
            color: var(--accent-gold);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: none;
            border-color: rgba(255, 215, 0, 0.4);
        }

        .accordion-body {
            color: var(--text-pale-mint);
            padding: 1.25rem 1.5rem;
            line-height: 1.7;
        }

        /* ---------- Form ---------- */
        .form-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 215, 0, 0.3);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            box-shadow: var(--shadow-soft);
        }

        .form-control {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 215, 0, 0.25);
            color: #FFF;
            padding: 0.85rem 1.25rem;
            border-radius: 0.5rem;
            transition: all 0.2s;
        }

        .form-control:focus {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--accent-gold);
            box-shadow: 0 0 0 0.25rem rgba(255, 215, 0, 0.1);
            color: #FFF;
        }

        .form-control::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .form-label {
            color: var(--text-pale-mint);
            font-weight: 500;
            margin-bottom: 0.4rem;
        }

        .form-select {
            background-color: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 215, 0, 0.25);
            color: #FFF;
            padding: 0.85rem 1.25rem;
            border-radius: 0.5rem;
        }

        .form-select:focus {
            background-color: rgba(255, 255, 255, 0.12);
            border-color: var(--accent-gold);
            box-shadow: 0 0 0 0.25rem rgba(255, 215, 0, 0.1);
            color: #FFF;
        }

        .form-select option {
            background: #0A2E1C;
            color: #FFF;
        }

        /* ---------- Footer ---------- */
        .footer {
            background: #051A10;
            border-top: 1px solid rgba(255, 215, 0, 0.2);
            padding: 3rem 0 1.5rem;
            color: var(--text-pale-mint);
        }

        .footer .footer-brand {
            color: var(--accent-gold);
            font-weight: 800;
            font-size: 1.5rem;
            text-decoration: none;
        }

        .footer .footer-links {
            list-style: none;
            padding: 0;
        }

        .footer .footer-links li {
            margin-bottom: 0.5rem;
        }

        .footer .footer-links a {
            color: var(--text-pale-mint);
            text-decoration: none;
            transition: color 0.2s;
        }

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

        .footer .footer-bottom {
            border-top: 1px solid rgba(255, 215, 0, 0.15);
            padding-top: 1.5rem;
            margin-top: 2rem;
            font-size: 0.85rem;
            text-align: center;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer .footer-bottom a {
            color: var(--accent-gold);
            text-decoration: none;
        }

        .footer .footer-bottom a:hover {
            text-decoration: underline;
        }

        /* ---------- FAB ---------- */
        .fab-support {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 1050;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(145deg, #1E3B2A, #0F2317);
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold);
            font-size: 1.6rem;
            box-shadow: var(--shadow-gold-glow);
            transition: all 0.3s;
            animation: float 3s ease-in-out infinite;
            text-decoration: none;
            cursor: pointer;
        }

        .fab-support::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 12px;
            height: 12px;
            background: #D32F2F;
            border-radius: 50%;
            border: 2px solid #0A2E1C;
            animation: blink 1.2s infinite;
        }

        .fab-support:hover,
        .fab-support:focus {
            transform: scale(1.1);
            background: #1e3b2a;
            color: #FFF3B0;
            box-shadow: 0 0 25px rgba(255, 215, 0, 0.5);
        }

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

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

        @media (max-width: 575.98px) {
            .fab-support {
                width: 48px;
                height: 48px;
                font-size: 1.3rem;
                bottom: 5rem;
                left: 0.75rem;
            }
        }

        /* ---------- Utility ---------- */
        .text-gold {
            color: var(--accent-gold) !important;
        }
        .bg-dark-custom {
            background-color: var(--bg-dark-charcoal);
        }
        .border-gold {
            border-color: var(--border-gold) !important;
        }
        .img-cover {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-md);
        }
        .rounded-lg {
            border-radius: var(--radius-lg) !important;
        }
        .shadow-soft {
            box-shadow: var(--shadow-soft) !important;
        }
        .mt-section { margin-top: var(--spacing-section); }
        .mb-section { margin-bottom: var(--spacing-section); }
        .py-section { padding-top: var(--spacing-section); padding-bottom: var(--spacing-section); }

/* roulang page: article */
:root {
            --bg-deep-jade: #0A2E1C;
            --bg-forest: #123E25;
            --bg-dark-charcoal: #0B0F0C;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-pale-mint: #D1F2EB;
            --text-muted-gold: #D4AC0D;
            --text-gray: #A6ACAF;
            --border-gold: #C5A059;
            --shadow-gold-glow: 0 4px 20px rgba(255, 215, 0, 0.3);
            --shadow-soft: 0 8px 30px rgba(0, 0, 0, 0.25);
            --radius-lg: 1rem;
            --radius-md: 0.75rem;
            --radius-sm: 0.5rem;
            --spacing-section: 5rem;
            --font-primary: 'Be Vietnam Pro', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-display: 'Playfair Display', 'Be Vietnam Pro', serif;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        .navbar {
            background: rgba(10, 46, 28, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(255, 215, 0, 0.2);
            padding: 0.75rem 0;
            transition: all 0.3s ease;
        }

        .navbar.scrolled {
            background: rgba(10, 46, 28, 0.98);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 800;
            color: var(--accent-gold) !important;
            font-size: 1.35rem;
            letter-spacing: 0.02em;
            text-decoration: none;
            transition: color 0.2s;
        }

        .navbar-brand:hover,
        .navbar-brand:focus {
            color: #FFF3B0 !important;
        }

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

        .navbar-nav .nav-link {
            color: var(--text-pale-mint) !important;
            font-weight: 500;
            padding: 0.5rem 1rem;
            margin: 0 0.15rem;
            border-radius: 0.375rem;
            transition: all 0.2s;
        }

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

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

        .navbar .btn-auth {
            font-weight: 600;
            border-radius: 2rem;
            padding: 0.5rem 1.25rem;
            transition: all 0.3s;
            margin-left: 0.35rem;
        }

        .btn-login {
            background: transparent;
            border: 1px solid rgba(255, 215, 0, 0.5);
            color: var(--accent-gold);
        }

        .btn-login:hover,
        .btn-login:focus {
            background: rgba(255, 215, 0, 0.15);
            border-color: var(--accent-gold);
            color: #FFF3B0;
        }

        .btn-signup {
            background: var(--accent-gold);
            border: 1px solid var(--accent-gold);
            color: #0A2E1C;
        }

        .btn-signup:hover,
        .btn-signup:focus {
            background: #FFE44D;
            border-color: #FFE44D;
            color: #0A2E1C;
            transform: translateY(-1px);
            box-shadow: 0 6px 14px rgba(255, 215, 0, 0.3);
        }

        .article-wrapper {
            padding-top: 6rem;
            padding-bottom: 4rem;
            min-height: 70vh;
        }

        .breadcrumb-article {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.95rem;
            color: var(--text-gray);
            margin-bottom: 1.25rem;
            flex-wrap: wrap;
        }

        .breadcrumb-article a {
            color: var(--text-pale-mint);
            text-decoration: none;
            transition: color 0.2s;
        }

        .breadcrumb-article a:hover,
        .breadcrumb-article a:focus {
            color: var(--accent-gold);
        }

        .breadcrumb-article .separator {
            color: var(--accent-gold);
            font-weight: 600;
        }

        .breadcrumb-article .current {
            color: var(--accent-gold);
            font-weight: 500;
            text-overflow: ellipsis;
            overflow: hidden;
            white-space: nowrap;
            max-width: 320px;
        }

        .article-header {
            margin-bottom: 2.5rem;
            text-align: left;
        }

        .article-title {
            font-family: var(--font-display);
            font-weight: 900;
            font-size: 2.75rem;
            line-height: 1.2;
            color: var(--text-white);
            letter-spacing: 0.01em;
            margin-bottom: 1rem;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.25rem;
            align-items: center;
            font-size: 0.95rem;
            color: var(--text-gray);
            padding-bottom: 1.25rem;
            border-bottom: 1px solid rgba(255, 215, 0, 0.15);
        }

        .article-meta i {
            color: var(--accent-gold);
            margin-right: 0.4rem;
        }

        .article-meta .badge-category {
            display: inline-flex;
            align-items: center;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            padding: 0.3rem 0.8rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.85rem;
            text-decoration: none;
            transition: all 0.2s;
        }

        .article-meta .badge-category:hover,
        .article-meta .badge-category:focus {
            background: rgba(255, 215, 0, 0.22);
            color: #FFF3B0;
        }

        .article-featured-image {
            margin-bottom: 2.5rem;
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            box-shadow: var(--shadow-soft);
        }

        .article-featured-image img {
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
            max-height: 520px;
        }

        .article-body {
            font-size: 1.1rem;
            line-height: 1.75;
            color: var(--text-pale-mint);
            text-align: left;
        }

        .article-body h2 {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 1.85rem;
            color: var(--text-white);
            margin-top: 2.5rem;
            margin-bottom: 1.25rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid rgba(255, 215, 0, 0.3);
        }

        .article-body h3 {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--text-white);
            margin-top: 2rem;
            margin-bottom: 1rem;
        }

        .article-body p {
            margin-bottom: 1.25rem;
        }

        .article-body ul,
        .article-body ol {
            padding-left: 1.5rem;
            margin-bottom: 1.5rem;
        }

        .article-body li {
            margin-bottom: 0.6rem;
        }

        .article-body blockquote {
            background: rgba(255, 215, 0, 0.06);
            border-left: 4px solid var(--accent-gold);
            padding: 1.25rem 1.5rem;
            border-radius: 0 0.5rem 0.5rem 0;
            margin: 1.5rem 0;
            font-style: italic;
            color: var(--text-white);
        }

        .article-body img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-md);
            margin: 1.25rem 0;
        }

        .article-body a {
            color: var(--accent-gold);
            text-decoration: underline;
            transition: color 0.2s;
        }

        .article-body a:hover,
        .article-body a:focus {
            color: #FFF3B0;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
        }

        .article-body th,
        .article-body td {
            padding: 0.75rem 1rem;
            border: 1px solid rgba(255, 215, 0, 0.2);
            text-align: left;
        }

        .article-body th {
            background: rgba(255, 215, 0, 0.1);
            font-weight: 600;
            color: var(--text-white);
        }

        .article-divider {
            height: 1px;
            background: linear-gradient(90deg, var(--accent-gold), transparent);
            border: none;
            margin: 3rem 0 2rem;
        }

        .article-cta-section {
            background: linear-gradient(135deg, rgba(18, 62, 37, 0.98), rgba(10, 46, 28, 0.95));
            border: 1px solid rgba(255, 215, 0, 0.35);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            margin-top: 3rem;
            text-align: left;
        }

        .article-cta-section h3 {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 1.75rem;
            color: var(--text-white);
            margin-bottom: 0.75rem;
        }

        .article-cta-section p {
            font-size: 1.05rem;
            color: var(--text-pale-mint);
            margin-bottom: 1.5rem;
        }

        .article-cta-section .btn-action {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--accent-gold);
            border: none;
            color: #0A2E1C;
            font-weight: 700;
            padding: 0.85rem 2rem;
            border-radius: 2rem;
            text-decoration: none;
            font-size: 1.05rem;
            transition: all 0.3s;
        }

        .article-cta-section .btn-action:hover,
        .article-cta-section .btn-action:focus {
            background: #FFE44D;
            color: #0A2E1C;
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold-glow);
        }

        .article-cta-section .btn-secondary-action {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            font-weight: 600;
            padding: 0.85rem 2rem;
            border-radius: 2rem;
            text-decoration: none;
            font-size: 1.05rem;
            transition: all 0.3s;
            margin-left: 0.75rem;
        }

        .article-cta-section .btn-secondary-action:hover,
        .article-cta-section .btn-secondary-action:focus {
            background: rgba(255, 215, 0, 0.15);
            color: #FFF3B0;
        }

        .article-not-found {
            padding: 4rem 0;
            text-align: left;
            color: var(--text-pale-mint);
        }

        .article-not-found h2 {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 2rem;
            color: var(--text-white);
            margin-bottom: 1rem;
        }

        .article-not-found .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--accent-gold);
            border: none;
            color: #0A2E1C;
            font-weight: 600;
            padding: 0.75rem 1.75rem;
            border-radius: 2rem;
            text-decoration: none;
            transition: all 0.3s;
            margin-top: 1.5rem;
        }

        .article-not-found .btn-back:hover,
        .article-not-found .btn-back:focus {
            background: #FFE44D;
            transform: translateY(-1px);
            box-shadow: var(--shadow-gold-glow);
        }

        .article-trust-badge {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 1.25rem;
            padding: 1rem 1.25rem;
            background: rgba(255, 215, 0, 0.05);
            border-radius: var(--radius-md);
            border: 1px dashed rgba(255, 215, 0, 0.3);
        }

        .article-trust-badge span {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.9rem;
            color: var(--text-pale-mint);
        }

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

        .footer {
            background: var(--bg-dark-charcoal);
            padding: 4rem 0 2rem;
            border-top: 1px solid rgba(255, 215, 0, 0.15);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--accent-gold) !important;
            text-decoration: none;
        }

        .footer-brand:hover,
        .footer-brand:focus {
            color: #FFF3B0 !important;
        }

        .footer p {
            font-size: 0.95rem;
            color: var(--text-gray);
        }

        .footer h5 {
            font-size: 1.1rem;
            font-weight: 700;
        }

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

        .footer-links li {
            margin-bottom: 0.6rem;
        }

        .footer-links a {
            color: var(--text-gray);
            text-decoration: none;
            font-size: 0.95rem;
            transition: color 0.2s;
        }

        .footer-links a:hover,
        .footer-links a:focus {
            color: var(--accent-gold);
        }

        .footer .badge {
            border-radius: 0.4rem;
            font-weight: 500;
            font-size: 0.8rem;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 215, 0, 0.1);
            padding-top: 1.5rem;
            margin-top: 2.5rem;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 0.85rem;
            color: var(--text-gray);
        }

        .footer-bottom a {
            color: var(--accent-gold);
            text-decoration: none;
            font-weight: 500;
            transition: color 0.2s;
        }

        .footer-bottom a:hover,
        .footer-bottom a:focus {
            color: #FFF3B0;
        }

        .text-gold {
            color: var(--accent-gold) !important;
        }

        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: rgba(10, 46, 28, 0.98);
                padding: 1rem;
                border-radius: 0 0 1rem 1rem;
                border: 1px solid rgba(255, 215, 0, 0.2);
                margin-top: 0.5rem;
            }

            .navbar-nav .nav-link {
                padding: 0.75rem 1rem;
            }

            .navbar .d-flex.align-items-center {
                margin-top: 0.75rem;
                justify-content: flex-start;
                width: 100%;
            }

            .navbar .btn-auth {
                padding: 0.75rem 1.5rem;
            }

            .article-title {
                font-size: 2.1rem;
            }

            .article-cta-section {
                padding: 1.75rem;
            }

            .article-cta-section .btn-secondary-action {
                margin-left: 0;
                margin-top: 0.6rem;
            }
        }

        @media (max-width: 767.98px) {
            .navbar-brand {
                font-size: 1.1rem;
                letter-spacing: 0;
            }

            .navbar .btn-auth {
                padding: 0.5rem 1rem;
                font-size: 0.85rem;
            }

            .article-title {
                font-size: 1.75rem;
            }

            .article-meta {
                gap: 0.75rem;
                font-size: 0.85rem;
            }

            .article-body {
                font-size: 1rem;
            }

            .article-body h2 {
                font-size: 1.5rem;
            }

            .article-body h3 {
                font-size: 1.25rem;
            }

            .breadcrumb-article .current {
                max-width: 160px;
            }

            .article-cta-section {
                padding: 1.5rem;
            }

            .article-cta-section h3 {
                font-size: 1.4rem;
            }

            .article-cta-section .btn-action,
            .article-cta-section .btn-secondary-action {
                display: block;
                width: 100%;
                text-align: center;
            }
        }

        @media (max-width: 519.98px) {
            .article-title {
                font-size: 1.5rem;
            }

            .breadcrumb-article {
                font-size: 0.8rem;
                gap: 0.3rem;
            }

            .breadcrumb-article .current {
                max-width: 100px;
            }

            .article-body {
                font-size: 0.95rem;
                line-height: 1.65;
            }

            .article-body h2 {
                font-size: 1.3rem;
            }

            .article-body h3 {
                font-size: 1.1rem;
            }

            .article-meta {
                font-size: 0.8rem;
                flex-direction: column;
                align-items: flex-start;
                gap: 0.5rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg-deep-jade: #0A2E1C;
            --bg-forest: #123E25;
            --bg-dark-charcoal: #0B0F0C;
            --accent-gold: #FFD700;
            --accent-gold-light: #FFF3B0;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-pale-mint: #D1F2EB;
            --text-muted-gold: #D4AC0D;
            --text-gray: #A6ACAF;
            --border-gold: #C5A059;
            --shadow-gold-glow: 0 4px 20px rgba(255, 215, 0, 0.3);
            --shadow-soft: 0 8px 30px rgba(0, 0, 0, 0.25);
            --shadow-card-hover: 0 12px 36px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(255, 215, 0, 0.15);
            --radius-lg: 1rem;
            --radius-md: 0.75rem;
            --radius-sm: 0.5rem;
            --spacing-section: 5rem;
            --font-primary: 'Be Vietnam Pro', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-display: 'Playfair Display', 'Be Vietnam Pro', serif;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-primary);
            background-color: var(--bg-deep-jade);
            color: var(--text-white);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

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

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

        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* ---------- Section Base ---------- */
        .section-block {
            padding: var(--spacing-section) 0;
            position: relative;
        }

        .section-block-alt {
            padding: calc(var(--spacing-section) * 0.9) 0;
            position: relative;
            background: linear-gradient(180deg, var(--bg-forest) 0%, var(--bg-deep-jade) 100%);
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-gold);
            border-bottom: 2px solid var(--accent-red);
            padding-bottom: 0.35rem;
            margin-bottom: 1rem;
        }

        .section-title {
            font-family: var(--font-display);
            font-size: 2.25rem;
            font-weight: 900;
            line-height: 1.25;
            color: var(--text-white);
            margin-bottom: 1rem;
            letter-spacing: -0.01em;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-pale-mint);
            max-width: 700px;
            line-height: 1.7;
            margin-bottom: 2.5rem;
        }

        .text-gold {
            color: var(--accent-gold) !important;
        }

        .text-mint {
            color: var(--text-pale-mint) !important;
        }

        /* ---------- Header / Navbar ---------- */
        .navbar {
            background: rgba(10, 46, 28, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 215, 0, 0.2);
            padding: 0.75rem 0;
            transition: all 0.35s ease;
        }

        .navbar.scrolled {
            background: rgba(10, 46, 28, 0.98);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 800;
            color: var(--accent-gold) !important;
            font-size: 1.3rem;
            letter-spacing: 0.02em;
            text-decoration: none;
            transition: color 0.2s;
            white-space: nowrap;
        }

        .navbar-brand:hover,
        .navbar-brand:focus {
            color: var(--accent-gold-light) !important;
        }

        .navbar-brand i {
            color: var(--accent-gold);
            font-size: 1.5rem;
            transition: transform 0.3s ease;
        }

        .navbar-brand:hover i {
            transform: rotate(15deg);
        }

        .navbar-nav .nav-link {
            color: var(--text-pale-mint) !important;
            font-weight: 500;
            padding: 0.5rem 0.9rem;
            margin: 0 0.1rem;
            border-radius: 0.375rem;
            transition: all 0.25s;
            font-size: 0.95rem;
            white-space: nowrap;
        }

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

        .navbar-nav .nav-link.active {
            color: var(--accent-gold) !important;
            background: rgba(255, 215, 0, 0.12);
            font-weight: 700;
            box-shadow: inset 0 -2px 0 var(--accent-gold);
        }

        .navbar .btn-auth {
            font-weight: 600;
            border-radius: 2rem;
            padding: 0.5rem 1.3rem;
            transition: all 0.3s;
            margin-left: 0.35rem;
            font-size: 0.9rem;
            white-space: nowrap;
        }

        .btn-login {
            background: transparent;
            border: 1px solid rgba(255, 215, 0, 0.5);
            color: var(--accent-gold);
        }

        .btn-login:hover,
        .btn-login:focus {
            background: rgba(255, 215, 0, 0.15);
            border-color: var(--accent-gold);
            color: var(--accent-gold-light);
        }

        .btn-signup {
            background: var(--accent-gold);
            border: 1px solid var(--accent-gold);
            color: #0A2E1C;
        }

        .btn-signup:hover,
        .btn-signup:focus {
            background: #FFE44D;
            border-color: #FFE44D;
            color: #0A2E1C;
            transform: translateY(-1px);
            box-shadow: 0 6px 14px rgba(255, 215, 0, 0.3);
        }

        .navbar-toggler {
            border: 1px solid rgba(255, 215, 0, 0.4);
            padding: 0.4rem 0.6rem;
            border-radius: 0.375rem;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.2);
        }

        /* ---------- Hero ---------- */
        .hero-category {
            background-image: linear-gradient(to bottom, rgba(10, 46, 28, 0.82), rgba(18, 62, 37, 0.92)), url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 7.5rem 0 4.5rem;
            min-height: 72vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .hero-category::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 5px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-red), var(--accent-gold));
        }

        .hero-category::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.1) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 215, 0, 0.15);
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            padding: 0.4rem 1.1rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 1.25rem;
        }

        .hero-category h1 {
            font-family: var(--font-display);
            font-size: 3.25rem;
            font-weight: 900;
            line-height: 1.18;
            color: var(--text-white);
            margin-bottom: 1.25rem;
            letter-spacing: -0.015em;
        }

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

        .hero-category h1 .highlight::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--accent-red);
            opacity: 0.6;
            border-radius: 2px;
        }

        .hero-category .lead {
            font-size: 1.15rem;
            color: var(--text-pale-mint);
            max-width: 580px;
            line-height: 1.75;
            margin-bottom: 1.75rem;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            margin-bottom: 1.75rem;
        }

        .btn-hero-primary {
            background: var(--accent-gold);
            border: 2px solid var(--accent-gold);
            color: #0A2E1C;
            font-weight: 700;
            padding: 0.8rem 2rem;
            border-radius: 2rem;
            transition: all 0.3s ease;
            font-size: 1rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-hero-primary:hover {
            background: #FFE44D;
            border-color: #FFE44D;
            color: #0A2E1C;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255, 215, 0, 0.35);
        }

        .btn-hero-secondary {
            background: transparent;
            border: 2px solid rgba(255, 215, 0, 0.5);
            color: var(--accent-gold);
            font-weight: 600;
            padding: 0.8rem 1.75rem;
            border-radius: 2rem;
            transition: all 0.3s ease;
            font-size: 1rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

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

        .hero-trust-strip {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem 1.5rem;
            align-items: center;
            font-size: 0.85rem;
            color: var(--text-pale-mint);
            font-weight: 500;
        }

        .hero-trust-strip span {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        .hero-trust-strip i {
            color: var(--accent-gold);
            font-size: 0.9rem;
        }

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

        .hero-illustration img {
            border-radius: var(--radius-lg);
            border: 2px solid rgba(255, 215, 0, 0.3);
            box-shadow: var(--shadow-soft), var(--shadow-gold-glow);
            max-width: 480px;
            width: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        .hero-illustration .floating-badge {
            position: absolute;
            bottom: -1rem;
            left: -1rem;
            background: var(--bg-dark-charcoal);
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold);
            border-radius: var(--radius-md);
            padding: 0.65rem 1.15rem;
            font-weight: 700;
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            box-shadow: var(--shadow-gold-glow);
            z-index: 3;
        }

        .floating-badge i {
            font-size: 1.1rem;
        }

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

        .metric-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 215, 0, 0.15);
            border-radius: var(--radius-lg);
            padding: 1.75rem 1.25rem;
            text-align: center;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

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

        .metric-card:hover {
            border-color: rgba(255, 215, 0, 0.4);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

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

        .metric-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid rgba(255, 215, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            font-size: 1.3rem;
            color: var(--accent-gold);
            transition: all var(--transition-fast);
        }

        .metric-card:hover .metric-icon {
            background: rgba(255, 215, 0, 0.2);
            transform: scale(1.1);
        }

        .metric-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.2;
            margin-bottom: 0.25rem;
            font-family: var(--font-display);
        }

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

        /* ---------- Service Matrix ---------- */
        .service-matrix {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            align-items: center;
        }

        .service-matrix-image {
            position: relative;
        }

        .service-matrix-image img {
            border-radius: var(--radius-lg);
            border: 2px solid rgba(255, 215, 0, 0.25);
            box-shadow: var(--shadow-soft);
            width: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        .service-matrix-image .image-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, rgba(10, 46, 28, 0.4) 0%, transparent 60%);
            pointer-events: none;
        }

        .service-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.85rem;
        }

        .service-list-item {
            display: flex;
            align-items: flex-start;
            gap: 0.85rem;
            padding: 0.9rem 1.1rem;
            background: rgba(255, 255, 255, 0.03);
            border-radius: var(--radius-md);
            border-left: 3px solid var(--accent-gold);
            transition: all var(--transition-fast);
            cursor: default;
        }

        .service-list-item:hover {
            background: rgba(255, 215, 0, 0.07);
            border-left-color: var(--accent-red);
            transform: translateX(4px);
        }

        .service-list-item .check-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.12);
            color: var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            margin-top: 0.15rem;
        }

        .service-list-item strong {
            display: block;
            color: var(--text-white);
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 0.15rem;
        }

        .service-list-item p {
            margin: 0;
            font-size: 0.85rem;
            color: var(--text-pale-mint);
            line-height: 1.55;
        }

        /* ---------- Comparison ---------- */
        .comparison-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin-top: 1rem;
        }

        .comparison-card {
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            transition: all var(--transition-smooth);
        }

        .comparison-card.safe {
            background: rgba(255, 215, 0, 0.06);
            border: 2px solid rgba(255, 215, 0, 0.35);
        }

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

        .comparison-card.unsafe {
            background: rgba(211, 47, 47, 0.06);
            border: 2px solid rgba(211, 47, 47, 0.35);
        }

        .comparison-card.unsafe:hover {
            border-color: var(--accent-red);
            box-shadow: 0 4px 20px rgba(211, 47, 47, 0.2);
            transform: translateY(-3px);
        }

        .comparison-header {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            margin-bottom: 1.25rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .comparison-header i {
            font-size: 1.5rem;
        }

        .comparison-card.safe .comparison-header i {
            color: var(--accent-gold);
        }

        .comparison-card.unsafe .comparison-header i {
            color: var(--accent-red);
        }

        .comparison-header h3 {
            font-size: 1.35rem;
            font-weight: 800;
            margin: 0;
            color: var(--text-white);
        }

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

        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            font-size: 0.9rem;
            line-height: 1.5;
            color: var(--text-pale-mint);
        }

        .comparison-list li i {
            margin-top: 0.2rem;
            flex-shrink: 0;
        }

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

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

        /* ---------- FAQ ---------- */
        .faq-accordion .accordion-item {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 215, 0, 0.15);
            border-radius: var(--radius-md) !important;
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-accordion .accordion-item:hover {
            border-color: rgba(255, 215, 0, 0.35);
        }

        .faq-accordion .accordion-button {
            background: transparent;
            color: var(--text-white);
            font-weight: 700;
            padding: 1.15rem 1.4rem;
            font-size: 0.95rem;
            border: none;
            box-shadow: none;
            border-radius: var(--radius-md) !important;
            transition: all var(--transition-fast);
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: rgba(255, 215, 0, 0.08);
            color: var(--accent-gold);
            box-shadow: none;
        }

        .faq-accordion .accordion-button::after {
            filter: invert(0.7) brightness(1.5);
            transition: transform 0.3s ease;
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.15);
            border: none;
        }

        .faq-accordion .accordion-body {
            color: var(--text-pale-mint);
            font-size: 0.9rem;
            line-height: 1.7;
            padding: 1.15rem 1.4rem;
            border-top: 1px solid rgba(255, 215, 0, 0.08);
        }

        /* ---------- CTA / Form ---------- */
        .cta-panel {
            background: linear-gradient(135deg, var(--bg-dark-charcoal) 0%, var(--bg-forest) 60%, var(--bg-deep-jade) 100%);
            border: 2px solid rgba(255, 215, 0, 0.25);
            border-radius: var(--radius-lg);
            padding: 3rem 2.5rem;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-soft);
        }

        .cta-panel::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-panel .cta-title {
            font-family: var(--font-display);
            font-size: 1.9rem;
            font-weight: 900;
            color: var(--text-white);
            margin-bottom: 0.75rem;
            letter-spacing: -0.01em;
        }

        .cta-panel .cta-text {
            color: var(--text-pale-mint);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 1.75rem;
            max-width: 520px;
        }

        .cta-form .form-control {
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 215, 0, 0.25);
            color: var(--text-white);
            border-radius: var(--radius-md);
            padding: 0.8rem 1.1rem;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }

        .cta-form .form-control::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .cta-form .form-control:focus {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--accent-gold);
            box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.15);
            color: var(--text-white);
        }

        .cta-form .form-label {
            color: var(--text-pale-mint);
            font-weight: 600;
            font-size: 0.85rem;
            margin-bottom: 0.4rem;
        }

        .btn-cta-submit {
            background: var(--accent-gold);
            border: 2px solid var(--accent-gold);
            color: #0A2E1C;
            font-weight: 700;
            padding: 0.8rem 2rem;
            border-radius: 2rem;
            transition: all 0.3s ease;
            font-size: 1rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            width: 100%;
            justify-content: center;
        }

        .btn-cta-submit:hover {
            background: #FFE44D;
            border-color: #FFE44D;
            color: #0A2E1C;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255, 215, 0, 0.3);
        }

        .form-note {
            font-size: 0.78rem;
            color: var(--text-gray);
            margin-top: 0.75rem;
            text-align: center;
        }

        /* ---------- Footer ---------- */
        .footer {
            background: var(--bg-dark-charcoal);
            border-top: 2px solid rgba(255, 215, 0, 0.2);
            padding: 3.5rem 0 2rem;
            position: relative;
        }

        .footer::before {
            content: '';
            position: absolute;
            top: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
        }

        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--accent-gold) !important;
            font-weight: 800;
            font-size: 1.2rem;
            text-decoration: none;
            letter-spacing: 0.02em;
            transition: color 0.2s;
        }

        .footer-brand:hover {
            color: var(--accent-gold-light) !important;
        }

        .footer-brand i {
            font-size: 1.3rem;
        }

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

        .footer h5 {
            font-size: 0.95rem;
            font-weight: 700;
            letter-spacing: 0.03em;
        }

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

        .footer-links li {
            margin-bottom: 0.55rem;
        }

        .footer-links a {
            color: var(--text-gray);
            font-size: 0.88rem;
            text-decoration: none;
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }

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

        .footer-links a i {
            font-size: 0.65rem;
            opacity: 0.7;
        }

        .badge-payment {
            background: rgba(255, 255, 255, 0.06) !important;
            border: 1px solid rgba(255, 215, 0, 0.2);
            color: var(--text-pale-mint) !important;
            font-weight: 500;
            font-size: 0.8rem;
            border-radius: 0.5rem;
            padding: 0.5rem 0.8rem !important;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .badge-payment:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold) !important;
            background: rgba(255, 215, 0, 0.1) !important;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            margin-top: 2rem;
            padding-top: 1.5rem;
            text-align: center;
        }

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

        .footer-bottom a {
            color: var(--text-gray);
            text-decoration: underline;
            transition: color var(--transition-fast);
        }

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

        /* ---------- FAB (Option 1: Classic & Royal Style) ---------- */
        .fab-royal {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            z-index: 1050;
            width: 58px;
            height: 58px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 25%, #2A2A2E, #0B0F0C 75%);
            border: 2px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: var(--shadow-gold-glow);
            text-decoration: none;
            color: var(--accent-gold);
            opacity: 0.7;
            transition: all var(--transition-smooth);
            animation: fabBreathe 3s ease-in-out infinite;
            -webkit-tap-highlight-color: transparent;
            user-select: none;
        }

        .fab-royal::after {
            content: '';
            position: absolute;
            top: -3px;
            right: -3px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #D32F2F;
            border: 2px solid #0B0F0C;
            animation: gemBlink 1.6s ease-in-out infinite;
        }

        .fab-royal:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(255, 215, 0, 0.5);
        }

        .fab-royal:hover .fab-icon {
            transform: rotate(360deg);
        }

        .fab-royal:active {
            transform: scale(0.95) translateY(2px);
            box-shadow: 0 2px 10px rgba(255, 215, 0, 0.25);
        }

        .fab-icon {
            font-size: 1.4rem;
            transition: transform 0.5s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .fab-icon .crown-symbol {
            position: absolute;
            font-size: 0.65rem;
            top: -0.6rem;
            right: -0.6rem;
            color: var(--accent-gold);
        }

        @keyframes fabBreathe {
            0%, 100% {
                transform: translateY(0);
                opacity: 0.7;
            }
            50% {
                transform: translateY(-4px);
                opacity: 0.9;
            }
        }

        @keyframes gemBlink {
            0%, 100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.4;
                transform: scale(0.7);
            }
        }

        /* ---------- Responsive ---------- */
        @media (max-width: 1024px) {
            .hero-category h1 {
                font-size: 2.5rem;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
            .section-title {
                font-size: 1.9rem;
            }
        }

        @media (max-width: 768px) {
            .navbar {
                padding: 0.6rem 0;
            }
            .navbar-brand {
                font-size: 1.05rem;
                letter-spacing: 0;
            }
            .navbar-brand i {
                font-size: 1.2rem;
            }
            .navbar-collapse {
                background: rgba(10, 46, 28, 0.98);
                padding: 1rem;
                border-radius: 0 0 1rem 1rem;
                border: 1px solid rgba(255, 215, 0, 0.2);
                margin-top: 0.5rem;
                max-height: 70vh;
                overflow-y: auto;
            }
            .navbar-nav .nav-link {
                padding: 0.7rem 1rem;
                font-size: 0.9rem;
            }
            .navbar .d-flex.align-items-center {
                margin-top: 0.75rem;
                justify-content: flex-start;
                width: 100%;
                gap: 0.5rem;
            }
            .navbar .btn-auth {
                padding: 0.6rem 1.1rem;
                font-size: 0.82rem;
                margin-left: 0;
            }

            .hero-category {
                padding-top: 6rem;
                padding-bottom: 3rem;
                min-height: auto;
            }
            .hero-category h1 {
                font-size: 2rem;
                line-height: 1.25;
            }
            .hero-category .lead {
                font-size: 1rem;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .btn-hero-primary,
            .btn-hero-secondary {
                width: 100%;
                justify-content: center;
            }
            .hero-illustration {
                margin-top: 2rem;
            }
            .hero-illustration img {
                max-width: 100%;
            }
            .hero-illustration .floating-badge {
                left: 0.5rem;
                bottom: -0.75rem;
                font-size: 0.75rem;
                padding: 0.5rem 0.9rem;
            }

            .section-block,
            .section-block-alt {
                padding: 3.5rem 0;
            }
            .section-title {
                font-size: 1.6rem;
                line-height: 1.3;
            }
            .section-subtitle {
                font-size: 0.92rem;
            }

            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.8rem;
            }
            .metric-card {
                padding: 1.25rem 0.9rem;
            }
            .metric-number {
                font-size: 1.5rem;
            }
            .metric-label {
                font-size: 0.75rem;
            }

            .service-matrix {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .service-matrix-image {
                order: -1;
            }
            .service-list-item {
                padding: 0.7rem 0.85rem;
            }

            .comparison-wrapper {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .comparison-card {
                padding: 1.5rem 1.1rem;
            }

            .cta-panel {
                padding: 2.25rem 1.5rem;
            }
            .cta-panel .cta-title {
                font-size: 1.5rem;
            }

            .footer {
                padding: 2.5rem 0 1.5rem;
            }
            .footer-brand {
                font-size: 1rem;
            }

            .fab-royal {
                width: 50px;
                height: 50px;
                left: 1rem;
                bottom: 4.5rem;
            }
            .fab-icon {
                font-size: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .hero-category h1 {
                font-size: 1.7rem;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
                gap: 0.6rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .btn-hero-primary,
            .btn-hero-secondary {
                font-size: 0.9rem;
                padding: 0.7rem 1.25rem;
            }
            .navbar-brand {
                font-size: 0.9rem;
            }
            .navbar-brand span {
                font-size: 0.85rem;
            }
            .navbar .btn-auth {
                padding: 0.5rem 0.8rem;
                font-size: 0.75rem;
            }
            .hero-trust-strip {
                font-size: 0.75rem;
                gap: 0.5rem 0.8rem;
            }
            .fab-royal {
                width: 44px;
                height: 44px;
                left: 0.8rem;
                bottom: 4rem;
                border-width: 1.5px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-deep-jade: #0A2E1C;
            --bg-forest: #123E25;
            --bg-dark-charcoal: #0B0F0C;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-pale-mint: #D1F2EB;
            --text-muted-gold: #D4AC0D;
            --text-gray: #A6ACAF;
            --border-gold: #C5A059;
            --shadow-gold-glow: 0 4px 20px rgba(255, 215, 0, 0.3);
            --shadow-soft: 0 8px 30px rgba(0, 0, 0, 0.25);
            --radius-lg: 1rem;
            --radius-md: 0.75rem;
            --radius-sm: 0.5rem;
            --spacing-section: 5rem;
            --font-primary: 'Be Vietnam Pro', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-display: 'Playfair Display', 'Be Vietnam Pro', serif;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-primary);
            background-color: var(--bg-deep-jade);
            color: var(--text-white);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        /* ---------- Header / Navbar ---------- */
        .fixed-top {
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }
        .navbar {
            background: rgba(10, 46, 28, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(255, 215, 0, 0.2);
            padding: 0.75rem 0;
            transition: all 0.3s ease;
        }
        .navbar.scrolled {
            background: rgba(10, 46, 28, 0.98);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 800;
            color: var(--accent-gold) !important;
            font-size: 1.35rem;
            letter-spacing: 0.02em;
            text-decoration: none;
            transition: color 0.2s;
        }
        .navbar-brand:hover,
        .navbar-brand:focus {
            color: #FFF3B0 !important;
        }
        .navbar-brand i {
            color: var(--accent-gold);
            font-size: 1.5rem;
        }
        .navbar-nav .nav-link {
            color: var(--text-pale-mint) !important;
            font-weight: 500;
            padding: 0.5rem 1rem;
            margin: 0 0.15rem;
            border-radius: 0.375rem;
            transition: all 0.2s;
        }
        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link:focus {
            color: var(--accent-gold) !important;
            background: rgba(255, 215, 0, 0.08);
        }
        .navbar-nav .nav-link.active {
            color: var(--accent-gold) !important;
            background: rgba(255, 215, 0, 0.12);
            font-weight: 600;
        }
        .navbar .btn-auth {
            font-weight: 600;
            border-radius: 2rem;
            padding: 0.5rem 1.25rem;
            transition: all 0.3s;
            margin-left: 0.35rem;
        }
        .btn-login {
            background: transparent;
            border: 1px solid rgba(255, 215, 0, 0.5);
            color: var(--accent-gold);
        }
        .btn-login:hover,
        .btn-login:focus {
            background: rgba(255, 215, 0, 0.15);
            border-color: var(--accent-gold);
            color: #FFF3B0;
        }
        .btn-signup {
            background: var(--accent-gold);
            border: 1px solid var(--accent-gold);
            color: #0A2E1C;
        }
        .btn-signup:hover,
        .btn-signup:focus {
            background: #FFE44D;
            border-color: #FFE44D;
            color: #0A2E1C;
            transform: translateY(-1px);
            box-shadow: 0 6px 14px rgba(255, 215, 0, 0.3);
        }
        /* ---------- Hero ---------- */
        .hero-section {
            background-image: linear-gradient(to bottom, rgba(10, 46, 28, 0.88), rgba(18, 62, 37, 0.92)), url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            padding-top: 6.5rem;
            padding-bottom: 3.5rem;
            min-height: 65vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-red), var(--accent-gold));
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(255, 215, 0, 0.15);
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            padding: 0.35rem 1rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .hero-title {
            font-family: var(--font-display);
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.2;
            color: var(--text-white);
            margin-top: 1.2rem;
            margin-bottom: 1.2rem;
        }
        .hero-title .highlight {
            color: var(--accent-gold);
        }
        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-pale-mint);
            max-width: 640px;
            margin-bottom: 2rem;
        }
        .btn-primary-gold {
            background: var(--accent-gold);
            border: 1px solid var(--accent-gold);
            color: #0A2E1C;
            font-weight: 700;
            border-radius: 2rem;
            padding: 0.75rem 2rem;
            transition: all 0.3s;
            text-decoration: none;
            display: inline-block;
        }
        .btn-primary-gold:hover,
        .btn-primary-gold:focus {
            background: #FFE44D;
            border-color: #FFE44D;
            color: #0A2E1C;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255, 215, 0, 0.35);
        }
        .btn-outline-gold {
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            font-weight: 600;
            border-radius: 2rem;
            padding: 0.75rem 1.75rem;
            transition: all 0.3s;
            text-decoration: none;
            display: inline-block;
        }
        .btn-outline-gold:hover,
        .btn-outline-gold:focus {
            background: rgba(255, 215, 0, 0.12);
            color: #FFF3B0;
            border-color: #FFE44D;
        }
        .hero-panel {
            background: rgba(11, 15, 12, 0.75);
            border: 1px solid rgba(255, 215, 0, 0.25);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            backdrop-filter: blur(10px);
            position: relative;
            z-index: 2;
        }
        .hero-panel .recommend-badge {
            background: var(--accent-red);
            color: #fff;
            font-weight: 700;
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            border-radius: 0.375rem;
            padding: 0.3rem 0.75rem;
            display: inline-block;
            margin-bottom: 1rem;
        }
        .hero-panel h3 {
            font-weight: 800;
            font-size: 1.4rem;
            color: var(--accent-gold);
            margin-bottom: 1rem;
        }
        .hero-panel ul {
            list-style: none;
            padding: 0;
            margin: 0 0 1.5rem;
        }
        .hero-panel ul li {
            padding: 0.5rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            color: var(--text-pale-mint);
            font-size: 0.95rem;
        }
        .hero-panel ul li i {
            color: var(--accent-gold);
            margin-top: 0.2rem;
        }
        /* ---------- Metrics ---------- */
        .metrics-section {
            background: var(--bg-dark-charcoal);
            padding: 3rem 0;
            border-bottom: 1px solid rgba(255, 215, 0, 0.15);
        }
        .metric-card {
            text-align: center;
            padding: 1.5rem 1rem;
            border-right: 1px solid rgba(255, 255, 255, 0.08);
            transition: background 0.3s;
        }
        .metric-card:hover {
            background: rgba(255, 215, 0, 0.04);
        }
        .metric-card:last-child {
            border-right: none;
        }
        .metric-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.2;
        }
        .metric-label {
            color: var(--text-gray);
            font-size: 0.9rem;
            margin-top: 0.4rem;
        }
        /* ---------- Section ---------- */
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-title {
            font-family: var(--font-display);
            font-size: 2.1rem;
            font-weight: 900;
            color: var(--text-white);
            margin-bottom: 1rem;
        }
        .section-subtitle {
            color: var(--text-pale-mint);
            font-size: 1.05rem;
            max-width: 720px;
        }
        .section-label {
            display: inline-block;
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid rgba(255, 215, 0, 0.3);
            color: var(--accent-gold);
            font-size: 0.85rem;
            font-weight: 600;
            border-radius: 2rem;
            padding: 0.3rem 1rem;
            letter-spacing: 0.04em;
        }
        /* ---------- Security Matrix ---------- */
        .security-matrix {
            background: var(--bg-forest);
        }
        .matrix-table-wrap {
            background: rgba(11, 15, 12, 0.6);
            border: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: var(--radius-lg);
            overflow: hidden;
        }
        .matrix-table {
            width: 100%;
            border-collapse: collapse;
        }
        .matrix-table th {
            background: rgba(255, 215, 0, 0.08);
            color: var(--accent-gold);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 1rem 1.5rem;
            text-align: left;
            border-bottom: 1px solid rgba(255, 215, 0, 0.2);
        }
        .matrix-table td {
            padding: 1rem 1.5rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            color: var(--text-pale-mint);
            font-size: 0.95rem;
        }
        .matrix-table tr:hover td {
            background: rgba(255, 215, 0, 0.04);
        }
        .matrix-table .check-icon {
            color: #32CD32;
        }
        .matrix-table .warn-icon {
            color: var(--accent-red);
        }
        .matrix-table .gold-icon {
            color: var(--accent-gold);
        }
        /* ---------- Compare ---------- */
        .compare-section {
            background: var(--bg-deep-jade);
        }
        .compare-card {
            background: rgba(11, 15, 12, 0.6);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 2rem;
            transition: all 0.3s;
            height: 100%;
            position: relative;
        }
        .compare-card:hover {
            border-color: rgba(255, 215, 0, 0.4);
            box-shadow: var(--shadow-soft);
            transform: translateY(-4px);
        }
        .compare-card.recommended {
            border: 2px solid var(--accent-gold);
            box-shadow: var(--shadow-gold-glow);
            background: rgba(255, 215, 0, 0.06);
        }
        .compare-card .tag {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent-red);
            color: #fff;
            font-weight: 700;
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            border-radius: 0.375rem;
            padding: 0.3rem 0.9rem;
            white-space: nowrap;
        }
        .compare-card h4 {
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--text-white);
            margin-top: 0.8rem;
            margin-bottom: 1.2rem;
            text-align: center;
        }
        .compare-card ul {
            list-style: none;
            padding: 0;
            margin: 0 0 1.5rem;
        }
        .compare-card ul li {
            padding: 0.55rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            color: var(--text-pale-mint);
            font-size: 0.92rem;
        }
        .compare-card ul li i {
            color: var(--accent-gold);
            margin-top: 0.2rem;
        }
        .compare-card .btn-block {
            display: block;
            width: 100%;
            text-align: center;
            padding: 0.75rem 1rem;
            border-radius: 2rem;
            font-weight: 700;
            text-decoration: none;
            transition: all 0.3s;
        }
        /* ---------- FAQ ---------- */
        .faq-section {
            background: var(--bg-dark-charcoal);
        }
        .accordion-item {
            background: rgba(18, 62, 37, 0.5);
            border: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: var(--radius-md) !important;
            margin-bottom: 0.75rem;
            overflow: hidden;
        }
        .accordion-button {
            background: transparent;
            color: var(--text-white);
            font-weight: 600;
            padding: 1.2rem 1.5rem;
            box-shadow: none;
            border: none;
            font-size: 1rem;
        }
        .accordion-button:not(.collapsed) {
            background: rgba(255, 215, 0, 0.08);
            color: var(--accent-gold);
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.25);
            border: none;
        }
        .accordion-button::after {
            filter: invert(0.7) sepia(1) saturate(3) hue-rotate(5deg);
        }
        .accordion-body {
            color: var(--text-pale-mint);
            padding: 1.2rem 1.5rem;
            font-size: 0.95rem;
            line-height: 1.7;
        }
        /* ---------- CTA Form ---------- */
        .cta-section {
            background-image: linear-gradient(to bottom, rgba(18, 62, 37, 0.94), rgba(10, 46, 28, 0.96)), url('/assets/images/backpic/back-3.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-red), var(--accent-gold));
        }
        .cta-form-wrap {
            background: rgba(11, 15, 12, 0.8);
            border: 1px solid rgba(255, 215, 0, 0.35);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            backdrop-filter: blur(10px);
            max-width: 620px;
            margin: 0 auto;
        }
        .cta-form-wrap h3 {
            font-weight: 800;
            font-size: 1.6rem;
            color: var(--accent-gold);
            margin-bottom: 0.5rem;
        }
        .form-control {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--text-white);
            border-radius: var(--radius-sm);
            padding: 0.7rem 1.2rem;
            transition: all 0.3s;
        }
        .form-control:focus {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--accent-gold);
            box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.15);
            color: var(--text-white);
        }
        .form-control::placeholder {
            color: var(--text-gray);
        }
        .form-select {
            background-color: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--text-pale-mint);
            border-radius: var(--radius-sm);
            padding: 0.7rem 1.2rem;
            transition: all 0.3s;
        }
        .form-select:focus {
            background-color: rgba(255, 255, 255, 0.1);
            border-color: var(--accent-gold);
            box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.15);
            color: var(--text-white);
        }
        .form-select option {
            background: var(--bg-forest);
            color: var(--text-white);
        }
        .btn-submit-cta {
            background: var(--accent-gold);
            border: 1px solid var(--accent-gold);
            color: #0A2E1C;
            font-weight: 700;
            border-radius: 2rem;
            padding: 0.75rem 2rem;
            transition: all 0.3s;
            width: 100%;
        }
        .btn-submit-cta:hover,
        .btn-submit-cta:focus {
            background: #FFE44D;
            border-color: #FFE44D;
            color: #0A2E1C;
            box-shadow: 0 8px 20px rgba(255, 215, 0, 0.35);
        }
        /* ---------- Footer ---------- */
        .footer {
            background: var(--bg-dark-charcoal);
            padding: 3.5rem 0 1.5rem;
            border-top: 1px solid rgba(255, 215, 0, 0.15);
        }
        .footer-brand {
            color: var(--accent-gold);
            font-weight: 800;
            font-size: 1.2rem;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
        }
        .footer-brand:hover {
            color: #FFF3B0;
        }
        .footer p {
            color: var(--text-gray);
            font-size: 0.9rem;
        }
        .text-gold {
            color: var(--accent-gold);
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.5rem;
        }
        .footer-links a {
            color: var(--text-pale-mint);
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.2s;
        }
        .footer-links a:hover {
            color: var(--accent-gold);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 2.5rem;
            padding-top: 1.2rem;
            text-align: center;
        }
        .footer-bottom p {
            color: var(--text-gray);
            font-size: 0.85rem;
            margin: 0;
        }
        .footer-bottom a {
            color: var(--text-muted-gold);
            text-decoration: none;
        }
        .footer-bottom a:hover {
            color: var(--accent-gold);
        }
        /* ---------- FAB ---------- */
        .fab-support {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--bg-dark-charcoal);
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            transition: all 0.3s;
            opacity: 0.7;
            animation: fab-breath 3s infinite ease-in-out;
        }
        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1) rotate(360deg);
            box-shadow: 0 0 25px rgba(255, 215, 0, 0.5);
        }
        .fab-support:active {
            transform: scale(0.95) translateY(2px);
        }
        .fab-support .notification-dot {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            background: var(--accent-red);
            border: 2px solid #fff;
            border-radius: 50%;
            animation: blink-dot 1.5s infinite;
        }
        @keyframes fab-breath {
            0%, 100% { opacity: 0.7; }
            50% { opacity: 1; }
        }
        @keyframes blink-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        /* ---------- Responsive ---------- */
        @media (max-width: 992px) {
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-panel {
                margin-top: 2rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .navbar-collapse {
                background: rgba(10, 46, 28, 0.98);
                padding: 1rem;
                border-radius: 0 0 1rem 1rem;
                border: 1px solid rgba(255, 215, 0, 0.2);
                margin-top: 0.5rem;
            }
            .navbar-nav .nav-link {
                padding: 0.75rem 1rem;
            }
            .navbar .d-flex.align-items-center {
                margin-top: 0.75rem;
                justify-content: flex-start;
                width: 100%;
            }
            .navbar .btn-auth {
                padding: 0.75rem 1.5rem;
            }
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 1.8rem;
            }
            .section {
                padding: 3.5rem 0;
            }
            .metrics-section {
                padding: 1.5rem 0;
            }
            .metric-card {
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                padding: 1rem;
            }
            .metric-card:last-child {
                border-bottom: none;
            }
            .metric-number {
                font-size: 1.8rem;
            }
            .matrix-table th,
            .matrix-table td {
                padding: 0.75rem 0.9rem;
                font-size: 0.85rem;
            }
            .compare-card {
                padding: 1.5rem;
                margin-bottom: 1.5rem;
            }
            .cta-form-wrap {
                padding: 1.8rem;
            }
            .navbar-brand {
                font-size: 1.1rem;
                letter-spacing: 0;
            }
            .navbar .btn-auth {
                padding: 0.5rem 1rem;
                font-size: 0.85rem;
            }
            .fab-support {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                left: 0.75rem;
            }
        }
        @media (max-width: 520px) {
            .hero-section {
                min-height: auto;
                padding-top: 5.5rem;
                padding-bottom: 2.5rem;
            }
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .btn-primary-gold,
            .btn-outline-gold {
                padding: 0.6rem 1.25rem;
                font-size: 0.9rem;
                display: block;
                width: 100%;
                text-align: center;
                margin-bottom: 0.5rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .matrix-table {
                font-size: 0.8rem;
            }
            .matrix-table th,
            .matrix-table td {
                padding: 0.6rem 0.6rem;
                font-size: 0.78rem;
            }
        }

/* roulang page: category3 */
:root {
            --bg-deep-jade: #0A2E1C;
            --bg-forest: #123E25;
            --bg-dark-charcoal: #0B0F0C;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-pale-mint: #D1F2EB;
            --text-muted-gold: #D4AC0D;
            --text-gray: #A6ACAF;
            --border-gold: #C5A059;
            --shadow-gold-glow: 0 4px 20px rgba(255, 215, 0, 0.3);
            --shadow-soft: 0 8px 30px rgba(0, 0, 0, 0.25);
            --radius-lg: 1rem;
            --radius-md: 0.75rem;
            --radius-sm: 0.5rem;
            --spacing-section: 5rem;
            --font-primary: 'Be Vietnam Pro', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-display: 'Playfair Display', 'Be Vietnam Pro', serif;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        @import url('/assets/css/vendor/9723b7396f-css2.css');
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-primary);
            background-color: var(--bg-deep-jade);
            color: var(--text-white);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            transition: var(--transition-fast);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        /* ---------- Header / Navbar ---------- */
        .navbar {
            background: rgba(10, 46, 28, 0.96);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(255, 215, 0, 0.2);
            padding: 0.75rem 0;
            transition: all 0.3s ease;
        }
        .navbar.scrolled {
            background: rgba(10, 46, 28, 0.99);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 800;
            color: var(--accent-gold) !important;
            font-size: 1.35rem;
            letter-spacing: 0.02em;
            text-decoration: none;
            transition: color 0.2s;
        }
        .navbar-brand:hover,
        .navbar-brand:focus {
            color: #FFF3B0 !important;
        }
        .navbar-brand i {
            color: var(--accent-gold);
            font-size: 1.5rem;
        }
        .navbar-nav .nav-link {
            color: var(--text-pale-mint) !important;
            font-weight: 500;
            padding: 0.5rem 1rem;
            margin: 0 0.15rem;
            border-radius: 0.375rem;
            transition: all 0.2s;
        }
        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link:focus {
            color: var(--accent-gold) !important;
            background: rgba(255, 215, 0, 0.08);
        }
        .navbar-nav .nav-link.active {
            color: var(--accent-gold) !important;
            background: rgba(255, 215, 0, 0.12);
            font-weight: 600;
        }
        .navbar .btn-auth {
            font-weight: 600;
            border-radius: 2rem;
            padding: 0.5rem 1.25rem;
            transition: all 0.3s;
            margin-left: 0.35rem;
        }
        .btn-login {
            background: transparent;
            border: 1px solid rgba(255, 215, 0, 0.5);
            color: var(--accent-gold);
        }
        .btn-login:hover,
        .btn-login:focus {
            background: rgba(255, 215, 0, 0.15);
            border-color: var(--accent-gold);
            color: #FFF3B0;
        }
        .btn-signup {
            background: var(--accent-gold);
            border: 1px solid var(--accent-gold);
            color: #0A2E1C;
        }
        .btn-signup:hover,
        .btn-signup:focus {
            background: #FFE44D;
            border-color: #FFE44D;
            color: #0A2E1C;
            transform: translateY(-1px);
            box-shadow: 0 6px 14px rgba(255, 215, 0, 0.3);
        }
        /* ---------- Hero ---------- */
        .hero-section {
            background-image: linear-gradient(to bottom, rgba(10, 46, 28, 0.88), rgba(18, 62, 37, 0.92)), url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            padding-top: 7rem;
            padding-bottom: 4rem;
            min-height: 80vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-red), var(--accent-gold));
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(255, 215, 0, 0.15);
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            padding: 0.375rem 1rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 1.25rem;
        }
        .hero-badge i {
            margin-right: 0.4rem;
        }
        .hero-title {
            font-family: var(--font-display);
            font-weight: 900;
            font-size: 2.75rem;
            line-height: 1.2;
            color: var(--text-white);
            margin-bottom: 1.25rem;
            letter-spacing: 0.01em;
        }
        .hero-title span {
            color: var(--accent-gold);
        }
        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-pale-mint);
            max-width: 560px;
            margin-bottom: 1.75rem;
            line-height: 1.65;
        }
        .hero-group-status {
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid rgba(255, 215, 0, 0.3);
            border-radius: var(--radius-md);
            padding: 0.875rem 1.25rem;
            margin-bottom: 1.75rem;
            display: inline-flex;
            align-items: center;
            gap: 0.75rem;
            flex-wrap: wrap;
        }
        .hero-group-status .group-avatar-stack {
            display: flex;
            align-items: center;
        }
        .hero-group-status .group-avatar-stack i {
            font-size: 1.6rem;
            color: var(--accent-gold);
            margin-right: -0.4rem;
            background: var(--bg-forest);
            border-radius: 50%;
            padding: 0.2rem;
            border: 1px solid var(--border-gold);
        }
        .hero-group-status .group-text {
            font-weight: 600;
            color: var(--text-pale-mint);
            font-size: 0.95rem;
        }
        .hero-group-status .group-text strong {
            color: var(--accent-gold);
            font-size: 1.05rem;
        }
        .hero-btns {
            display: flex;
            gap: 0.875rem;
            flex-wrap: wrap;
        }
        .btn-primary-gold {
            background: var(--accent-gold);
            border: 1px solid var(--accent-gold);
            color: #0A2E1C;
            font-weight: 700;
            border-radius: 2rem;
            padding: 0.875rem 2rem;
            font-size: 1.05rem;
            transition: all 0.3s;
        }
        .btn-primary-gold:hover,
        .btn-primary-gold:focus {
            background: #FFE44D;
            border-color: #FFE44D;
            color: #0A2E1C;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255, 215, 0, 0.35);
        }
        .btn-outline-gold {
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            font-weight: 600;
            border-radius: 2rem;
            padding: 0.875rem 2rem;
            font-size: 1.05rem;
            transition: all 0.3s;
        }
        .btn-outline-gold:hover,
        .btn-outline-gold:focus {
            background: rgba(255, 215, 0, 0.15);
            border-color: #FFE44D;
            color: #FFF3B0;
            transform: translateY(-2px);
        }
        .hero-panel {
            background: rgba(11, 15, 12, 0.75);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(197, 160, 89, 0.4);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            box-shadow: var(--shadow-soft);
        }
        .hero-panel-title {
            font-weight: 700;
            color: var(--accent-gold);
            font-size: 1.05rem;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .hero-panel-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0.625rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.9rem;
        }
        .hero-panel-row:last-child {
            border-bottom: none;
        }
        .hero-panel-row .label {
            color: var(--text-gray);
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .hero-panel-row .value {
            font-weight: 700;
            color: var(--text-white);
        }
        .hero-panel-row .value.success {
            color: #4CAF50;
        }
        .hero-panel-row .badge-secure {
            background: rgba(76, 175, 80, 0.15);
            border: 1px solid #4CAF50;
            color: #81C784;
            border-radius: 1rem;
            padding: 0.15rem 0.6rem;
            font-size: 0.75rem;
            font-weight: 600;
        }
        /* ---------- Section Common ---------- */
        .section-padding {
            padding: var(--spacing-section) 0;
        }
        .section-label {
            display: inline-block;
            color: var(--accent-gold);
            font-weight: 700;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 0.75rem;
        }
        .section-title {
            font-family: var(--font-display);
            font-weight: 900;
            font-size: 2.15rem;
            line-height: 1.25;
            color: var(--text-white);
            margin-bottom: 1rem;
        }
        .section-desc {
            color: var(--text-gray);
            font-size: 1.05rem;
            max-width: 680px;
            line-height: 1.65;
        }
        .divider-gold {
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), transparent);
            width: 80px;
            margin-bottom: 1.5rem;
            border-radius: 2px;
        }
        /* ---------- Metrics Dashboard ---------- */
        .metrics-section {
            background: var(--bg-forest);
            border-top: 1px solid rgba(255, 215, 0, 0.15);
            border-bottom: 1px solid rgba(255, 215, 0, 0.15);
        }
        .metric-card {
            background: rgba(10, 46, 28, 0.6);
            border: 1px solid rgba(197, 160, 89, 0.3);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            transition: all 0.3s;
            height: 100%;
        }
        .metric-card:hover {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-gold-glow);
            transform: translateY(-3px);
        }
        .metric-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 0.875rem;
            color: var(--accent-gold);
            font-size: 1.25rem;
        }
        .metric-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.1;
            margin-bottom: 0.375rem;
        }
        .metric-value span {
            color: var(--accent-gold);
            font-size: 1.2rem;
        }
        .metric-label {
            color: var(--text-gray);
            font-size: 0.9rem;
            font-weight: 500;
        }
        /* ---------- Service Matrix ---------- */
        .method-matrix-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.5rem;
        }
        .method-card {
            background: var(--bg-forest);
            border: 1px solid rgba(197, 160, 89, 0.3);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            transition: all 0.3s;
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        .method-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(to bottom, var(--accent-gold), transparent);
            opacity: 0;
            transition: opacity 0.3s;
        }
        .method-card:hover::before {
            opacity: 1;
        }
        .method-card:hover {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-gold-glow);
            transform: translateY(-3px);
        }
        .method-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        .method-badge {
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
            font-weight: 700;
            font-size: 0.8rem;
            border-radius: 1rem;
            padding: 0.25rem 0.75rem;
            border: 1px solid rgba(255, 215, 0, 0.3);
        }
        .method-rate {
            color: #4CAF50;
            font-weight: 700;
            font-size: 0.9rem;
        }
        .method-name {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .method-name i {
            color: var(--accent-gold);
            font-size: 1.4rem;
        }
        .method-desc {
            color: var(--text-gray);
            font-size: 0.92rem;
            line-height: 1.6;
            margin-bottom: 1rem;
        }
        .method-stats {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            padding-top: 0.875rem;
        }
        .method-stat-row {
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
        }
        .method-stat-row .stat-label {
            color: var(--text-gray);
        }
        .method-stat-row .stat-value {
            color: var(--text-white);
            font-weight: 600;
        }
        /* ---------- Comparison Section ---------- */
        .comparison-section {
            background: var(--bg-dark-charcoal);
        }
        .compare-table-wrap {
            background: var(--bg-forest);
            border: 1px solid rgba(197, 160, 89, 0.3);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            overflow-x: auto;
        }
        .compare-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            min-width: 600px;
        }
        .compare-table th {
            background: rgba(255, 215, 0, 0.08);
            color: var(--accent-gold);
            font-weight: 700;
            padding: 0.875rem 1rem;
            text-align: left;
            font-size: 0.9rem;
            border-bottom: 1px solid rgba(197, 160, 89, 0.3);
        }
        .compare-table td {
            padding: 0.875rem 1rem;
            color: var(--text-pale-mint);
            font-size: 0.9rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            vertical-align: middle;
        }
        .compare-table tr:last-child td {
            border-bottom: none;
        }
        .compare-table .check-safe {
            color: #4CAF50;
            font-weight: 700;
        }
        .compare-table .cross-unsafe {
            color: var(--accent-red);
            font-weight: 700;
        }
        /* ---------- FAQ ---------- */
        .faq-section {
            background: var(--bg-deep-jade);
        }
        .accordion-item {
            background: var(--bg-forest);
            border: 1px solid rgba(197, 160, 89, 0.25);
            border-radius: var(--radius-md) !important;
            margin-bottom: 0.875rem;
            overflow: hidden;
        }
        .accordion-button {
            background: transparent;
            color: var(--text-white);
            font-weight: 600;
            padding: 1.125rem 1.25rem;
            font-size: 1rem;
            border: none;
            box-shadow: none;
        }
        .accordion-button:not(.collapsed) {
            background: rgba(255, 215, 0, 0.06);
            color: var(--accent-gold);
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }
        .accordion-button::after {
            filter: invert(0.75);
        }
        .accordion-body {
            color: var(--text-gray);
            font-size: 0.95rem;
            line-height: 1.7;
            padding: 0.5rem 1.25rem 1.25rem;
        }
        /* ---------- CTA Form ---------- */
        .cta-section {
            background-image: linear-gradient(to bottom, rgba(10, 46, 28, 0.92), rgba(11, 15, 12, 0.96)), url('/assets/images/backpic/back-3.jpg');
            background-size: cover;
            background-position: center;
            text-align: center;
            padding: 4.5rem 0;
            border-top: 1px solid rgba(255, 215, 0, 0.2);
        }
        .cta-card {
            max-width: 680px;
            margin: 0 auto;
        }
        .cta-card .section-title {
            color: var(--text-white);
        }
        .cta-form {
            display: flex;
            gap: 0.75rem;
            flex-wrap: wrap;
            justify-content: center;
            margin-top: 1.5rem;
        }
        .cta-form input {
            flex: 1;
            min-width: 240px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(197, 160, 89, 0.4);
            border-radius: 2rem;
            padding: 0.875rem 1.5rem;
            color: var(--text-white);
            font-size: 0.95rem;
            outline: none;
            transition: all 0.3s;
        }
        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .cta-form input:focus {
            border-color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
            box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.15);
        }
        .cta-note {
            color: var(--text-gray);
            font-size: 0.85rem;
            margin-top: 0.875rem;
        }
        /* ---------- Footer ---------- */
        .footer {
            background: var(--bg-dark-charcoal);
            border-top: 1px solid rgba(255, 215, 0, 0.25);
            padding: 3.5rem 0 1.5rem;
            color: var(--text-gray);
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            font-size: 1.3rem;
        }
        .footer-brand:hover {
            color: #FFF3B0;
        }
        .footer h5 {
            color: var(--accent-gold);
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.02em;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.625rem;
        }
        .footer-links a {
            color: var(--text-gray);
            font-size: 0.9rem;
            transition: color 0.2s;
        }
        .footer-links a:hover {
            color: var(--accent-gold);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 2.5rem;
            padding-top: 1.25rem;
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-gray);
        }
        .footer-bottom a {
            color: var(--accent-gold);
        }
        .footer-bottom a:hover {
            color: #FFF3B0;
        }
        /* ---------- FAB ---------- */
        .fab-royal {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 1050;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #1a1a1a, #0B0F0C);
            border: 2px solid var(--accent-gold);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.35), inset 0 1px 3px rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0.7;
            cursor: pointer;
            transition: all 0.3s;
            animation: fabFloat 3s ease-in-out infinite;
        }
        .fab-royal i {
            color: var(--accent-gold);
            font-size: 1.4rem;
            position: relative;
            z-index: 2;
        }
        .fab-royal::after {
            content: '';
            position: absolute;
            top: -2px;
            left: -2px;
            right: -2px;
            bottom: -2px;
            border-radius: 50%;
            background: linear-gradient(135deg, #FFD700, #C5A059, #FFD700);
            opacity: 0.4;
            z-index: 1;
            animation: shimmer 3s linear infinite;
        }
        .fab-royal .notif-dot {
            position: absolute;
            top: 2px;
            right: 4px;
            width: 10px;
            height: 10px;
            background: #D32F2F;
            border-radius: 50%;
            z-index: 3;
            animation: blink 1.5s ease-in-out infinite;
        }
        .fab-royal:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 6px 28px rgba(255, 215, 0, 0.5);
        }
        .fab-royal:active {
            transform: scale(0.95) translateY(2px);
        }
        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        @keyframes shimmer {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }
        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        /* ---------- Responsive ---------- */
        @media (max-width: 992px) {
            :root {
                --spacing-section: 3.5rem;
            }
            .hero-title {
                font-size: 2.25rem;
            }
            .hero-section {
                padding-top: 6rem;
                min-height: auto;
            }
            .navbar-brand {
                font-size: 1.1rem;
            }
            .navbar .btn-auth {
                padding: 0.5rem 1rem;
                font-size: 0.85rem;
            }
            .metric-value {
                font-size: 1.6rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 768px) {
            :root {
                --spacing-section: 2.5rem;
            }
            .navbar-brand {
                font-size: 1rem;
                gap: 0.35rem;
            }
            .navbar-brand i {
                font-size: 1.2rem;
            }
            .hero-title {
                font-size: 1.85rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-btns {
                flex-direction: column;
                gap: 0.625rem;
            }
            .btn-primary-gold,
            .btn-outline-gold {
                width: 100%;
                text-align: center;
            }
            .method-matrix-grid {
                grid-template-columns: 1fr;
            }
            .hero-panel {
                margin-top: 2rem;
            }
            .cta-form input {
                min-width: 100%;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .fab-royal {
                bottom: 4rem;
                left: 0.75rem;
                width: 48px;
                height: 48px;
            }
            .fab-royal i {
                font-size: 1.1rem;
            }
            .compare-table-wrap {
                padding: 0.875rem;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.55rem;
            }
            .hero-group-status {
                padding: 0.7rem 0.9rem;
                font-size: 0.85rem;
            }
            .hero-badge {
                font-size: 0.78rem;
                padding: 0.3rem 0.8rem;
            }
            .metric-card {
                padding: 1rem;
            }
            .metric-value {
                font-size: 1.4rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .footer-brand {
                font-size: 1.1rem;
            }
            .navbar {
                padding: 0.5rem 0;
            }
            .hero-section {
                padding-top: 5rem;
            }
        }