/* roulang page: index */
:root {
            --primary-bg: #0B0B0B;
            --secondary-bg: #161616;
            --accent-orange: #FF4500;
            --accent-red: #FF0000;
            --accent-amber: #FF9F00;
            --text-white: #FFFFFF;
            --text-warm-gray: #CCCCCC;
            --text-muted: #999999;
            --border-color: #2A2A2A;
            --card-bg: #1E1E1E;
            --shadow-glow: 0 0 15px rgba(255, 69, 0, 0.5);
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --spacing-xs: 4px;
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 24px;
            --spacing-xl: 32px;
            --spacing-2xl: 48px;
            --spacing-3xl: 64px;
            --font-heading: 'Segoe UI', 'Roboto', sans-serif;
            --font-body: 'Segoe UI', 'Roboto', sans-serif;
        }

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

        body {
            font-family: var(--font-body);
            background-color: var(--primary-bg);
            color: var(--text-white);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        a { text-decoration: none; color: inherit; transition: color 0.2s ease; }
        a:hover { color: var(--accent-orange); }

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

        .container { max-width: 1200px; margin: 0 auto; padding: 0 var(--spacing-md); }

        /* Navbar */
        .navbar {
            background-color: rgba(22, 22, 22, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            padding: var(--spacing-sm) 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            transition: background-color 0.3s ease;
        }
        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .navbar-brand {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--accent-orange);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .navbar-brand:hover { color: var(--accent-amber); }
        .navbar-nav {
            display: flex;
            list-style: none;
            gap: var(--spacing-lg);
            align-items: center;
            margin: 0;
            padding: 0;
        }
        .navbar-nav .nav-link {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-warm-gray);
            padding: var(--spacing-xs) 0;
            position: relative;
            transition: color 0.2s ease;
        }
        .navbar-nav .nav-link.active,
        .navbar-nav .nav-link:hover {
            color: var(--accent-orange);
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--accent-orange);
            border-radius: 2px;
        }
        .navbar-actions { display: flex; align-items: center; gap: var(--spacing-md); }
        .btn-login {
            font-weight: 700;
            color: var(--text-warm-gray);
            background: none;
            border: none;
            cursor: pointer;
            padding: var(--spacing-sm) var(--spacing-md);
            transition: color 0.2s ease;
        }
        .btn-login:hover { color: var(--text-white); }
        .btn-signup {
            font-weight: 700;
            background: linear-gradient(135deg, var(--accent-orange), var(--accent-red));
            color: #fff;
            border: none;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: transform 0.15s ease, box-shadow 0.15s ease;
            box-shadow: 0 2px 10px rgba(255, 69, 0, 0.3);
        }
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(255, 69, 0, 0.5);
            color: #fff;
        }

        /* Mobile Nav Toggle */
        .navbar-toggler {
            background: none;
            border: 1px solid var(--border-color);
            color: var(--text-warm-gray);
            padding: var(--spacing-sm) var(--spacing-md);
            border-radius: var(--radius-sm);
            font-size: 1.3rem;
            cursor: pointer;
            display: none;
        }
        @media (max-width: 768px) {
            .navbar-toggler { display: block; }
            .navbar-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: var(--spacing-sm);
                padding: var(--spacing-md) 0;
            }
            .navbar-nav.show { display: flex; }
            .navbar-actions { gap: var(--spacing-sm); }
            .btn-signup { padding: 8px 16px; font-size: 0.9rem; }
        }

        /* FAB */
        .fab-floating {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 1050;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-orange), var(--accent-red));
            border: none;
            box-shadow: 0 4px 20px rgba(255, 69, 0, 0.6);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
            animation: floatFAB 3s ease-in-out infinite;
        }
        .fab-floating i { font-size: 24px; color: #fff; }
        .fab-floating:hover { transform: scale(1.15); box-shadow: 0 6px 30px rgba(255, 69, 0, 0.8); }
        .fab-floating:active { transform: scale(0.95); }
        @keyframes floatFAB {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }

        /* Section Spacing */
        section { padding: var(--spacing-3xl) 0; }
        .section-title {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 2rem;
            color: var(--text-white);
            margin-bottom: var(--spacing-sm);
        }
        .section-subtitle {
            color: var(--text-warm-gray);
            font-size: 1rem;
            margin-bottom: var(--spacing-2xl);
            max-width: 700px;
        }

        /* Hero Flash Sale */
        .hero-section {
            background: linear-gradient(135deg, #1A0505 0%, #0B0B0B 60%, #1A0A0A 100%);
            padding: var(--spacing-2xl) 0 var(--spacing-3xl);
            position: relative;
            overflow: hidden;
        }
        .hero-countdown {
            background: rgba(255, 0, 0, 0.15);
            border: 1px solid var(--accent-red);
            border-radius: var(--radius-md);
            padding: var(--spacing-md) var(--spacing-lg);
            display: inline-flex;
            align-items: center;
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-lg);
            color: var(--text-white);
            font-weight: 700;
            font-size: 1rem;
        }
        .countdown-timer { font-size: 1.5rem; color: var(--accent-orange); font-weight: 800; }
        .hero-main-title {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.2;
            color: #fff;
            margin-bottom: var(--spacing-md);
        }
        .hero-main-title span { color: var(--accent-orange); }
        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-warm-gray);
            margin-bottom: var(--spacing-lg);
            max-width: 600px;
        }
        .hero-cta-group { display: flex; gap: var(--spacing-md); flex-wrap: wrap; margin-bottom: var(--spacing-lg); }
        .btn-primary-cta {
            background: linear-gradient(135deg, #FF4500, #FF0000);
            color: #fff;
            font-weight: 700;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            border: none;
            font-size: 1rem;
            transition: transform 0.15s, box-shadow 0.15s;
            box-shadow: 0 4px 16px rgba(255, 69, 0, 0.4);
        }
        .btn-primary-cta:hover { transform: translateY(-2px); box-shadow: var(--shadow-glow); color: #fff; }
        .btn-outline-cta {
            border: 2px solid var(--accent-orange);
            color: var(--accent-orange);
            background: transparent;
            font-weight: 700;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            transition: all 0.2s ease;
        }
        .btn-outline-cta:hover { background: var(--accent-orange); color: #0B0B0B; }
        .hero-data-row {
            display: flex;
            gap: var(--spacing-2xl);
            flex-wrap: wrap;
            margin-top: var(--spacing-md);
        }
        .hero-data-item h4 { font-size: 1.8rem; font-weight: 900; color: var(--accent-amber); }
        .hero-data-item p { font-size: 0.85rem; color: var(--text-muted); }

        /* Featured Game Card */
        .featured-game-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            display: flex;
            gap: var(--spacing-md);
            align-items: center;
            margin-top: var(--spacing-xl);
        }
        .featured-game-card img { border-radius: var(--radius-md); width: 120px; height: 120px; object-fit: cover; }
        .featured-game-info h3 { color: #fff; font-weight: 800; }
        .featured-game-info .badge-hot { background: var(--accent-red); color: #fff; padding: 2px 10px; border-radius: 4px; font-size: 0.75rem; font-weight: 700; }

        /* Selling Points */
        .selling-points-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-xl);
        }
        .selling-point-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: var(--spacing-xl);
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .selling-point-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); border-color: var(--accent-orange); }
        .selling-point-icon { font-size: 2rem; color: var(--accent-orange); margin-bottom: var(--spacing-md); }
        .selling-point-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: var(--spacing-sm); }
        .selling-point-card p { color: var(--text-warm-gray); font-size: 0.95rem; }

        /* Scenario Demo */
        .scenario-section { background-color: var(--secondary-bg); }
        .scenario-row { display: flex; gap: var(--spacing-xl); align-items: center; }
        .scenario-steps { flex: 1; }
        .scenario-step { margin-bottom: var(--spacing-lg); padding-left: var(--spacing-xl); border-left: 2px solid var(--accent-orange); }
        .scenario-step h4 { font-weight: 700; color: var(--accent-orange); }
        .scenario-step p { color: var(--text-warm-gray); }
        .scenario-img { flex: 1; border-radius: var(--radius-lg); overflow: hidden; }

        /* Social Proof */
        .testimonial-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--spacing-lg); }
        .testimonial-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
        }
        .testimonial-card .stars { color: var(--accent-amber); margin-bottom: var(--spacing-sm); }
        .testimonial-card p { color: var(--text-warm-gray); font-style: italic; }

        /* News Section */
        .news-grid { display: grid; grid-template-columns: 2fr 1fr; gap: var(--spacing-xl); }
        .news-main-list { display: flex; flex-direction: column; gap: var(--spacing-md); }
        .news-item {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            transition: border-color 0.2s;
        }
        .news-item:hover { border-color: var(--accent-orange); }
        .news-item a { font-weight: 700; color: #fff; }
        .news-item .news-meta { font-size: 0.8rem; color: var(--text-muted); }
        .news-sidebar { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: var(--spacing-lg); }

        /* CTA Form */
        .cta-section {
            background: linear-gradient(135deg, #1E0A05, #0B0B0B);
            text-align: center;
        }
        .cta-form { max-width: 500px; margin: 0 auto; }
        .cta-form input {
            width: 100%;
            padding: 14px;
            margin-bottom: var(--spacing-md);
            background: #1E1E1E;
            border: 1px solid var(--border-color);
            color: #fff;
            border-radius: var(--radius-sm);
        }
        .cta-form .btn-primary-cta { width: 100%; }

        /* Footer */
        .site-footer {
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-color);
            padding: var(--spacing-2xl) 0;
        }
        .footer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--spacing-xl); }
        .footer-brand { font-weight: 800; font-size: 1.2rem; color: var(--accent-orange); }
        .footer-links { list-style: none; padding: 0; }
        .footer-links li { margin-bottom: var(--spacing-xs); }
        .footer-links a { color: var(--text-muted); font-size: 0.9rem; }
        .footer-bottom { text-align: center; padding-top: var(--spacing-xl); color: var(--text-muted); font-size: 0.85rem; }

        @media (max-width: 768px) {
            .selling-points-grid, .testimonial-grid, .news-grid, .footer-grid { grid-template-columns: 1fr; }
            .hero-main-title { font-size: 2rem; }
            .scenario-row { flex-direction: column; }
        }

/* roulang page: category1 */
:root {
            --primary-bg: #0A2E1C;
            --secondary-bg: #123E25;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-primary: #FFFFFF;
            --text-muted: #D1F2EB;
            --border-gold: #B8860B;
            --shadow-gold: rgba(255, 215, 0, 0.25);
            --card-bg: rgba(255, 255, 255, 0.03);
            --overlay-dark: rgba(0, 0, 0, 0.7);
            --gradient-gold: linear-gradient(135deg, #FFD700 0%, #B8860B 100%);
            --gradient-dark: linear-gradient(180deg, #0A2E1C 0%, #062315 100%);
        }

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

        body {
            font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--primary-bg);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
        }

        /* NAVBAR */
        header.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, 0.3);
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.6);
            padding: 0.5rem 0;
            position: sticky;
            top: 0;
            z-index: 1050;
        }

        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .navbar-brand {
            color: var(--accent-gold) !important;
            font-weight: 800;
            font-size: 1.35rem;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            text-shadow: 0 0 8px rgba(255, 215, 0, 0.4);
            text-decoration: none;
        }

        .navbar-nav {
            display: flex;
            list-style: none;
            gap: 1.8rem;
            align-items: center;
        }

        .navbar-nav a {
            color: var(--text-muted);
            font-weight: 500;
            text-decoration: none;
            font-size: 0.95rem;
            padding: 0.5rem 0;
            transition: all 0.2s;
            border-bottom: 2px solid transparent;
        }

        .navbar-nav a:hover {
            color: var(--accent-gold);
            border-bottom-color: var(--accent-gold);
        }

        .navbar-nav a.active {
            color: var(--accent-gold);
            font-weight: 700;
            border-bottom-color: var(--accent-gold);
        }

        .navbar-actions {
            display: flex;
            gap: 0.6rem;
            align-items: center;
        }

        .btn-login {
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            padding: 0.4rem 1.2rem;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.85rem;
            cursor: pointer;
            transition: 0.2s;
        }

        .btn-login:hover {
            background: rgba(255, 215, 0, 0.1);
        }

        .btn-signup {
            background: var(--gradient-gold);
            border: none;
            color: #0A2E1C;
            padding: 0.45rem 1.5rem;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.85rem;
            cursor: pointer;
            transition: all 0.2s;
            box-shadow: 0 3px 10px rgba(255, 215, 0, 0.3);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(255, 215, 0, 0.45);
        }

        .navbar-toggler {
            display: none;
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            font-size: 1.5rem;
            padding: 0.3rem 0.8rem;
            border-radius: 6px;
        }

        /* CONTAINER */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* HERO CATEGORY */
        .hero-category {
            background: linear-gradient(135deg, rgba(10, 46, 28, 0.85) 0%, rgba(18, 62, 37, 0.9) 100%), url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            padding: 5rem 0 3.5rem;
            border-bottom: 3px solid var(--border-gold);
            text-align: left;
            position: relative;
        }

        .hero-category h1 {
            font-size: 2.9rem;
            font-weight: 900;
            color: var(--accent-gold);
            text-shadow: 0 0 15px rgba(255, 215, 0, 0.5);
            margin-bottom: 1rem;
            line-height: 1.2;
        }

        .hero-category .subtitle {
            font-size: 1.25rem;
            color: var(--text-muted);
            max-width: 700px;
            margin-bottom: 1.8rem;
        }

        .badge-verified {
            background: var(--accent-red);
            color: white;
            padding: 0.3rem 1rem;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.8rem;
            letter-spacing: 0.03em;
            display: inline-block;
            margin-right: 0.8rem;
        }

        /* SECTION INTRO */
        .section-intro {
            padding: 3.5rem 0;
            background: var(--secondary-bg);
        }

        .criteria-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }

        .criteria-item {
            background: var(--card-bg);
            border: 1px solid rgba(255, 215, 0, 0.15);
            border-radius: 16px;
            padding: 1.8rem 1.5rem;
            transition: all 0.3s;
            text-align: left;
        }

        .criteria-item:hover {
            border-color: var(--accent-gold);
            box-shadow: 0 8px 25px var(--shadow-gold);
            transform: translateY(-4px);
        }

        .criteria-item i {
            font-size: 2.4rem;
            color: var(--accent-gold);
            margin-bottom: 1rem;
        }

        .criteria-item h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
        }

        /* PROVIDER LIST */
        .provider-list-section {
            padding: 4rem 0;
            background: var(--primary-bg);
        }

        .provider-card {
            background: rgba(18, 62, 37, 0.7);
            border: 1px solid rgba(255, 215, 0, 0.25);
            border-radius: 20px;
            padding: 2rem 1.8rem;
            margin-bottom: 2rem;
            display: flex;
            flex-wrap: wrap;
            gap: 1.8rem;
            align-items: flex-start;
            transition: 0.3s;
            text-align: left;
        }

        .provider-card:hover {
            border-color: var(--accent-gold);
            box-shadow: 0 10px 30px rgba(255, 215, 0, 0.2);
        }

        .provider-rank {
            background: var(--gradient-gold);
            color: #0A2E1C;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            font-weight: 900;
            font-size: 1.6rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .provider-info {
            flex: 1;
            min-width: 200px;
        }

        .provider-info h2 {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 0.3rem;
        }

        .provider-stats {
            display: flex;
            gap: 1.5rem;
            margin: 1rem 0;
            flex-wrap: wrap;
        }

        .stat-badge {
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-gold);
            padding: 0.5rem 1.2rem;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.85rem;
        }

        /* CTA INLINE */
        .cta-inline {
            background: var(--gradient-dark);
            padding: 3.5rem 0;
            text-align: left;
            border-top: 2px solid var(--border-gold);
        }

        .btn-gold {
            background: var(--gradient-gold);
            color: #0A2E1C;
            font-weight: 800;
            padding: 0.8rem 2.5rem;
            border-radius: 40px;
            text-decoration: none;
            display: inline-block;
            transition: 0.25s;
            box-shadow: 0 5px 18px rgba(255, 215, 0, 0.3);
            font-size: 1.05rem;
        }

        .btn-gold:hover {
            transform: scale(1.04);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.5);
        }

        /* FAQ */
        .faq-section {
            padding: 4rem 0;
            background: var(--secondary-bg);
        }

        .accordion-button {
            background: var(--card-bg) !important;
            color: var(--text-primary) !important;
            border: 1px solid rgba(255, 215, 0, 0.2) !important;
            font-weight: 600;
            border-radius: 12px !important;
            margin-bottom: 0.6rem;
            padding: 1.2rem 1.5rem;
            transition: 0.2s;
        }

        .accordion-button:not(.collapsed) {
            background: rgba(255, 215, 0, 0.08) !important;
            border-color: var(--accent-gold) !important;
            color: var(--accent-gold) !important;
        }

        .accordion-body {
            background: rgba(0, 0, 0, 0.3);
            color: var(--text-muted);
            border-radius: 0 0 12px 12px;
            padding: 1.2rem 1.8rem;
        }

        /* FOOTER */
        .site-footer {
            background: #062315;
            padding: 3rem 0 1.5rem;
            border-top: 3px solid var(--border-gold);
            color: var(--text-muted);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-brand {
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--accent-gold);
        }

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

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

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

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 215, 0, 0.3);
            padding-top: 1.5rem;
            text-align: left;
            font-size: 0.85rem;
            color: #aaa;
        }

        /* FAB */
        .fab-custom {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            width: 56px;
            height: 56px;
            background: #0A2E1C;
            border: 2px solid var(--accent-gold);
            border-radius: 50%;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.8rem;
            cursor: pointer;
            transition: 0.3s;
            z-index: 1000;
            opacity: 0.85;
            animation: float 3s ease-in-out infinite;
        }

        .fab-custom:hover {
            opacity: 1;
            transform: scale(1.15) rotate(360deg);
            box-shadow: 0 6px 28px rgba(255, 215, 0, 0.55);
        }

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

        /* RESPONSIVE */
        @media (max-width: 992px) {
            .navbar-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: rgba(10, 46, 28, 0.98);
                padding: 1rem 0;
            }
            .navbar-nav.show {
                display: flex;
            }
            .navbar-toggler {
                display: block;
            }
            .hero-category h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .provider-card {
                flex-direction: column;
            }
            .navbar-actions {
                gap: 0.3rem;
            }
            .btn-login, .btn-signup {
                font-size: 0.75rem;
                padding: 0.35rem 0.9rem;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-card: #1B4F32;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-primary: #FFFFFF;
            --text-secondary: #D1F2EB;
            --text-muted: #A9CBBE;
            --border-light: rgba(255, 215, 0, 0.2);
            --border-gold: rgba(255, 215, 0, 0.5);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.15);
            --shadow-btn: 0 4px 15px rgba(211, 47, 47, 0.3);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --font-body: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;
        }

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

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

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.25s ease;
        }

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

        button {
            cursor: pointer;
            border: none;
            outline: none;
            font-family: inherit;
            transition: all 0.25s ease;
        }

        ::selection {
            background: var(--accent-gold);
            color: var(--bg-primary);
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Navigation */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            padding: 12px 0;
            transition: all 0.3s ease;
        }

        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .navbar-brand {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--accent-gold);
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: all 0.3s ease;
        }

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

        .navbar-brand:hover {
            color: #FFE44D;
            transform: scale(1.02);
        }

        .navbar-nav {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 28px;
            margin: 0;
            padding: 0;
        }

        .nav-link {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-secondary);
            position: relative;
            padding: 6px 0;
            transition: color 0.25s ease;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 4px;
            transition: width 0.3s ease;
        }

        .nav-link:hover,
        .nav-link.active {
            color: var(--accent-gold);
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }

        .navbar-actions {
            display: flex;
            gap: 12px;
            align-items: center;
        }

        .btn-login {
            background: transparent;
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 8px 20px;
            border-radius: 50px;
            transition: all 0.3s ease;
        }

        .btn-login:hover {
            background: rgba(255, 215, 0, 0.1);
            border-color: var(--accent-gold);
            box-shadow: 0 0 20px rgba(255, 215, 0, 0.2);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-red), #B71C1C);
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 8px 22px;
            border-radius: 50px;
            box-shadow: var(--shadow-btn);
            transition: all 0.3s ease;
        }

        .btn-signup:hover {
            background: linear-gradient(135deg, #E53935, var(--accent-red));
            box-shadow: 0 6px 25px rgba(211, 47, 47, 0.5);
            transform: translateY(-2px);
        }

        .navbar-toggler {
            display: none;
            background: transparent;
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            font-size: 1.5rem;
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            transition: all 0.3s ease;
        }

        .navbar-toggler:hover {
            background: rgba(255, 215, 0, 0.1);
        }

        /* Article Content Section */
        .article-section {
            padding: 120px 0 80px;
            min-height: 70vh;
        }

        .article-container {
            max-width: 820px;
            margin: 0 auto;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
        }

        .article-header {
            margin-bottom: 36px;
            border-bottom: 1px solid var(--border-light);
            padding-bottom: 28px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            align-items: center;
            margin-bottom: 16px;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

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

        .article-meta i {
            color: var(--accent-gold);
            font-size: 0.85rem;
        }

        .badge-category {
            background: rgba(255, 215, 0, 0.12);
            color: var(--accent-gold);
            font-weight: 700;
            font-size: 0.8rem;
            padding: 5px 14px;
            border-radius: 50px;
            border: 1px solid var(--border-gold);
            display: inline-block;
        }

        .article-h1 {
            font-size: 2.3rem;
            font-weight: 800;
            line-height: 1.25;
            color: #fff;
            margin: 12px 0 0;
            letter-spacing: -0.5px;
        }

        .article-featured-image {
            width: 100%;
            border-radius: var(--radius-md);
            margin-bottom: 36px;
            border: 1px solid var(--border-light);
        }

        .article-body {
            font-size: 1.07rem;
            line-height: 1.75;
            color: var(--text-secondary);
        }

        .article-body h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: #fff;
            margin: 36px 0 18px;
            padding-left: 16px;
            border-left: 4px solid var(--accent-gold);
        }

        .article-body h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin: 28px 0 14px;
        }

        .article-body p {
            margin-bottom: 18px;
        }

        .article-body ul,
        .article-body ol {
            margin: 18px 0 28px;
            padding-left: 24px;
        }

        .article-body li {
            margin-bottom: 10px;
            color: var(--text-secondary);
        }

        .article-body li::marker {
            color: var(--accent-gold);
            font-weight: 700;
        }

        .article-body strong {
            color: #fff;
            font-weight: 700;
        }

        .article-body a {
            color: var(--accent-gold);
            text-decoration: underline;
            font-weight: 600;
        }

        .article-body a:hover {
            color: #FFE44D;
        }

        .article-body blockquote {
            background: rgba(255, 215, 0, 0.05);
            border-left: 4px solid var(--accent-gold);
            padding: 20px 24px;
            margin: 28px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-muted);
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
        }

        .article-body table th {
            background: var(--bg-secondary);
            color: var(--accent-gold);
            font-weight: 700;
            padding: 14px 16px;
            text-align: left;
        }

        .article-body table td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-secondary);
        }

        .article-body table tr:hover td {
            background: rgba(255, 215, 0, 0.03);
        }

        .article-cta-card {
            background: linear-gradient(135deg, var(--accent-gold), #E6A800);
            border-radius: var(--radius-md);
            padding: 28px 32px;
            margin: 40px 0 20px;
            text-align: center;
            color: var(--bg-primary);
            box-shadow: var(--shadow-gold);
        }

        .article-cta-card h4 {
            font-weight: 800;
            font-size: 1.3rem;
            margin-bottom: 8px;
        }

        .article-cta-card p {
            color: #1B4F32;
            margin-bottom: 18px;
            font-weight: 600;
        }

        .btn-cta-gold {
            background: var(--bg-primary);
            color: var(--accent-gold);
            font-weight: 700;
            padding: 12px 32px;
            border-radius: 50px;
            font-size: 1rem;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
            transition: all 0.3s ease;
            display: inline-block;
        }

        .btn-cta-gold:hover {
            background: #0D3A24;
            color: #FFE44D;
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
        }

        .not-found-block {
            text-align: center;
            padding: 80px 20px;
        }

        .not-found-block i {
            font-size: 3.5rem;
            color: var(--accent-gold);
            margin-bottom: 20px;
        }

        .not-found-block h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .not-found-block p {
            color: var(--text-muted);
            margin-bottom: 28px;
            font-size: 1.05rem;
        }

        /* Footer */
        .site-footer {
            background: #071F13;
            border-top: 2px solid var(--border-gold);
            padding: 60px 0 0;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 12px;
        }

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

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.95rem;
            transition: color 0.2s ease;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 215, 0, 0.15);
            padding: 20px 0;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* FAB */
        .fab-widget {
            position: fixed;
            left: 18px;
            bottom: 100px;
            z-index: 999;
        }

        .fab-btn {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--bg-primary);
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold);
            font-size: 1.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.25);
            transition: all 0.35s ease;
            animation: floatBtn 3s ease-in-out infinite;
            cursor: pointer;
        }

        .fab-btn:hover {
            background: var(--accent-gold);
            color: var(--bg-primary);
            box-shadow: 0 6px 30px rgba(255, 215, 0, 0.5);
            transform: scale(1.1);
            animation: none;
        }

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

        .fab-notification {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            background: var(--accent-red);
            border-radius: 50%;
            border: 2px solid var(--bg-primary);
            box-shadow: 0 0 10px rgba(211, 47, 47, 0.7);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.4); }
        }

        /* Responsive */
        @media (max-width: 992px) {
            .navbar-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: rgba(10, 46, 28, 0.98);
                padding: 16px 0;
                gap: 12px;
                border-top: 1px solid var(--border-light);
                margin-top: 12px;
            }
            .navbar-nav.open {
                display: flex;
            }
            .navbar-toggler {
                display: block;
            }
            .navbar-actions {
                flex-shrink: 0;
            }
            .navbar .container {
                flex-wrap: wrap;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .article-container {
                padding: 32px 24px;
            }
            .article-h1 {
                font-size: 1.8rem;
            }
            .article-section {
                padding: 100px 0 50px;
            }
        }

        @media (max-width: 576px) {
            .navbar-brand {
                font-size: 1.1rem;
            }
            .btn-login, .btn-signup {
                font-size: 0.8rem;
                padding: 6px 14px;
            }
            .article-container {
                padding: 24px 16px;
                border-radius: var(--radius-md);
            }
            .article-h1 {
                font-size: 1.5rem;
            }
            .article-body {
                font-size: 1rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .fab-btn {
                width: 48px;
                height: 48px;
                font-size: 1.3rem;
            }
            .fab-widget {
                left: 12px;
                bottom: 80px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0B1A30;
            --bg-secondary: #0F0C20;
            --accent-neon: #CCFF00;
            --accent-cyan: #00F0FF;
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --border-glow: #00F0FF;
            --card-bg: rgba(15, 12, 32, 0.8);
            --btn-gradient: linear-gradient(135deg, #CCFF00, #00F0FF);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --border-radius-card: 16px;
            --transition-speed: 0.3s;
        }

        * {
            box-sizing: border-box;
        }

        body {
            background-color: var(--bg-primary);
            color: var(--text-primary);
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.6;
            margin: 0;
            overflow-x: hidden;
            background-image: radial-gradient(circle at 20% 20%, rgba(0, 240, 255, 0.05) 0%, transparent 40%);
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Typography */
        h1 {
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            text-shadow: 0 0 12px rgba(0, 240, 255, 0.3);
        }

        h2 {
            font-weight: 700;
            color: var(--text-primary);
            position: relative;
            margin-bottom: 1.5rem;
        }

        h2::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -8px;
            width: 60px;
            height: 4px;
            background: var(--accent-cyan);
            border-radius: 4px;
            box-shadow: var(--shadow-neon);
        }

        h3 {
            font-weight: 600;
            color: var(--accent-cyan);
        }

        .lead {
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Navbar */
        .navbar {
            background: rgba(11, 26, 48, 0.9);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.25);
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
        }

        .navbar-brand {
            font-size: 1.4rem;
            font-weight: 800;
            background: linear-gradient(to right, #CCFF00, #00F0FF);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.3px;
            text-decoration: none;
        }

        .navbar-nav {
            display: flex;
            list-style: none;
            gap: 1.8rem;
            align-items: center;
            margin: 0;
            padding: 0;
        }

        .nav-link {
            color: var(--text-secondary);
            font-weight: 600;
            text-decoration: none;
            padding: 0.5rem 0.2rem;
            border-bottom: 2px solid transparent;
            transition: all var(--transition-speed) ease;
            font-size: 1rem;
        }

        .nav-link.active,
        .nav-link:hover {
            color: var(--accent-cyan);
            border-bottom-color: var(--accent-cyan);
            text-shadow: 0 0 8px rgba(0, 240, 255, 0.5);
        }

        .btn-login {
            background: transparent;
            border: 1px solid var(--accent-cyan);
            color: var(--accent-cyan);
            padding: 0.5rem 1.5rem;
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition-speed);
            cursor: pointer;
        }

        .btn-login:hover {
            background: rgba(0, 240, 255, 0.15);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.5);
        }

        .btn-signup {
            background: var(--btn-gradient);
            border: none;
            color: #0B1A30;
            font-weight: 700;
            padding: 0.5rem 1.8rem;
            border-radius: 30px;
            transition: var(--transition-speed);
            cursor: pointer;
            box-shadow: 0 0 12px rgba(204, 255, 0, 0.4);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 20px rgba(204, 255, 0, 0.7);
        }

        .navbar-toggler {
            background: transparent;
            border: none;
            color: var(--accent-cyan);
            font-size: 1.8rem;
            display: none;
        }

        /* Hero */
        .hero-section {
            padding: 3rem 0 2.5rem;
            background: linear-gradient(135deg, #0B1A30 0%, #0F0C20 100%);
            border-bottom: 1px solid rgba(0, 240, 255, 0.2);
        }

        .hero-comparison-card {
            background: rgba(15, 12, 32, 0.7);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(0, 240, 255, 0.4);
            border-radius: 24px;
            padding: 2rem;
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.2);
        }

        .highlight-card {
            background: rgba(204, 255, 0, 0.08);
            border-left: 5px solid var(--accent-neon);
            border-radius: 16px;
            padding: 1.8rem;
            margin-top: 2rem;
            box-shadow: 0 0 15px rgba(204, 255, 0, 0.2);
        }

        .cta-button {
            background: var(--btn-gradient);
            border: none;
            color: #0B1A30;
            font-weight: 800;
            padding: 0.9rem 2.2rem;
            border-radius: 40px;
            font-size: 1.2rem;
            transition: all 0.25s;
            box-shadow: 0 0 25px rgba(204, 255, 0, 0.5);
            display: inline-block;
            text-decoration: none;
            text-align: center;
        }

        .cta-button:hover {
            transform: scale(1.05);
            box-shadow: 0 0 35px rgba(204, 255, 0, 0.8);
            color: #0B1A30;
        }

        /* Cards */
        .method-card {
            background: var(--card-bg);
            border: 1px solid rgba(0, 240, 255, 0.25);
            border-radius: var(--border-radius-card);
            padding: 1.8rem;
            transition: all var(--transition-speed);
            backdrop-filter: blur(8px);
        }

        .method-card:hover {
            transform: translateY(-6px);
            border-color: var(--accent-neon);
            box-shadow: var(--shadow-neon);
        }

        .step-list {
            list-style: none;
            padding: 0;
        }
        .step-list li {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            margin-bottom: 1.5rem;
            color: var(--text-secondary);
        }
        .step-number {
            background: var(--accent-cyan);
            color: #0B1A30;
            font-weight: 800;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .comparison-row {
            background: rgba(255, 255, 255, 0.02);
            border-radius: 12px;
            padding: 1rem;
            margin-bottom: 1rem;
            border-left: 4px solid transparent;
        }
        .comparison-row.recommended {
            border-left-color: var(--accent-neon);
            background: rgba(204, 255, 0, 0.05);
        }

        /* FAQ */
        .accordion-button {
            background: rgba(15, 12, 32, 0.6);
            color: var(--text-primary);
            font-weight: 600;
            border: 1px solid rgba(0, 240, 255, 0.3);
            border-radius: 12px !important;
            margin-bottom: 8px;
        }
        .accordion-button:not(.collapsed) {
            background: rgba(0, 240, 255, 0.15);
            color: var(--accent-cyan);
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
        }
        .accordion-body {
            background: rgba(11, 26, 48, 0.8);
            color: var(--text-secondary);
            border-radius: 0 0 12px 12px;
        }

        /* Footer */
        .site-footer {
            background: #070B14;
            border-top: 2px solid var(--accent-cyan);
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #CCFF00;
        }
        .footer-links {
            list-style: none;
            padding: 0;
        }
        .footer-links li a {
            color: #A6ACAF;
            text-decoration: none;
            transition: 0.2s;
        }
        .footer-links li a:hover {
            color: var(--accent-cyan);
        }
        .footer-bottom {
            text-align: center;
            color: #6c757d;
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 1.5rem;
        }

        /* FAB */
        .fab-neon {
            position: fixed;
            left: 1.5rem;
            bottom: 5rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            background: rgba(0,0,0,0.6);
            backdrop-filter: blur(12px);
            border: 2px solid transparent;
            border-image: linear-gradient(135deg, #CCFF00, #00F0FF) 1;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #00F0FF;
            font-size: 1.8rem;
            box-shadow: 0 0 18px rgba(0,240,255,0.6);
            transition: 0.3s;
            cursor: pointer;
        }
        .fab-neon:hover {
            box-shadow: 0 0 32px rgba(0,240,255,1);
            transform: scale(1.1);
        }

        /* Responsive */
        @media (max-width: 992px) {
            .navbar-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0B1A30;
                position: absolute;
                top: 70px;
                left: 0;
                padding: 1.5rem;
            }
            .navbar-nav.show {
                display: flex;
            }
            .navbar-toggler {
                display: block;
            }
            .navbar-actions {
                display: flex;
                gap: 0.5rem;
                margin-left: auto;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 576px) {
            h1 { font-size: 1.9rem; }
            .hero-comparison-card { padding: 1.5rem; }
        }