/* roulang page: index */
:root {
            --bg-primary: #0A0A0A;
            --bg-secondary: #171717;
            --bg-tertiary: #262626;
            --accent-primary: #EA580C;
            --accent-secondary: #EF4444;
            --text-primary: #FFFFFF;
            --text-secondary: #A3A3A3;
            --text-warm: #FDBA74;
            --border-color: rgba(234, 88, 12, 0.25);
            --shadow-glow: 0 4px 24px rgba(234, 88, 12, 0.25);
            --radius-lg: 1rem;
            --radius-md: 0.75rem;
            --container-max: 1280px;
        }

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

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

        body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

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

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        /* Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background-color: rgba(10, 10, 10, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            transition: background-color 0.3s ease;
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .logo {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .logo i {
            color: var(--accent-primary);
            font-size: 1.5rem;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            list-style: none;
        }

        .nav-links a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 0.5rem 0;
            position: relative;
            transition: color 0.2s;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--text-primary);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent-primary);
            border-radius: 1px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .btn-login {
            background: transparent;
            border: 1px solid var(--text-secondary);
            color: var(--text-primary);
            padding: 0.5rem 1.25rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s;
            white-space: nowrap;
        }
        .btn-login:hover {
            border-color: var(--accent-primary);
            color: var(--accent-primary);
        }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            border: none;
            color: #fff;
            padding: 0.5rem 1.5rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
            box-shadow: 0 2px 12px rgba(234, 88, 12, 0.35);
            white-space: nowrap;
        }
        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 20px rgba(234, 88, 12, 0.5);
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.25rem;
        }

        @media (max-width: 1024px) {
            .nav-links {
                gap: 1rem;
                font-size: 0.85rem;
            }
            .nav-links a {
                font-size: 0.8rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--bg-secondary);
                flex-direction: column;
                padding: 1.5rem;
                gap: 1rem;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                z-index: 99;
            }
            .nav-links.mobile-open {
                transform: translateY(0);
            }
            .mobile-toggle {
                display: block;
            }
            .btn-login, .btn-signup {
                padding: 0.4rem 1rem;
                font-size: 0.8rem;
            }
        }

        /* Hero Section - Live Stream Countdown */
        .hero {
            padding-top: 120px;
            padding-bottom: 60px;
            background: linear-gradient(180deg, #0A0A0A 0%, #171717 100%);
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(234,88,12,0.12) 0%, transparent 70%);
            border-radius: 50%;
        }
        .hero-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-text h1 {
            font-size: 2.75rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }
        .hero-text h1 span {
            background: linear-gradient(135deg, #EA580C, #EF4444);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-text p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
            line-height: 1.65;
            max-width: 520px;
        }
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .btn-primary {
            background: linear-gradient(135deg, #EA580C, #EF4444);
            color: #fff;
            padding: 0.75rem 2rem;
            border-radius: 2.5rem;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 6px 20px rgba(234, 88, 12, 0.4);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(234, 88, 12, 0.55);
        }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--accent-primary);
            color: var(--accent-primary);
            padding: 0.75rem 2rem;
            border-radius: 2.5rem;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all 0.3s;
        }
        .btn-outline:hover {
            background: rgba(234, 88, 12, 0.08);
        }
        .hero-visual {
            position: relative;
        }
        .hero-visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-glow);
        }
        .countdown-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(234, 88, 12, 0.15);
            border: 1px solid var(--accent-primary);
            color: var(--accent-primary);
            padding: 0.5rem 1.25rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 1rem;
        }
        .countdown-badge i {
            animation: pulse 1.5s infinite;
        }
        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.5; }
        }

        @media (max-width: 768px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .hero-text h1 {
                font-size: 2rem;
            }
            .hero-visual {
                order: -1;
            }
        }

        /* Section Styles */
        .section {
            padding: 60px 0;
        }
        .section-dark {
            background-color: var(--bg-secondary);
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 2.5rem;
            max-width: 600px;
        }
        .section-header-left {
            text-align: left;
            margin-bottom: 2rem;
        }

        /* Global Coverage */
        .coverage-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .coverage-card {
            background: var(--bg-tertiary);
            padding: 1.5rem;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            transition: all 0.3s;
        }
        .coverage-card:hover {
            border-color: var(--accent-primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow);
        }
        .coverage-card i {
            font-size: 2rem;
            color: var(--accent-primary);
            margin-bottom: 0.75rem;
        }
        .coverage-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
        .coverage-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        @media (max-width: 768px) {
            .coverage-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .coverage-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Scenario Cards */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .scenario-card {
            background: var(--bg-tertiary);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: all 0.3s;
        }
        .scenario-card:hover {
            border-color: var(--accent-primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow);
        }
        .scenario-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .scenario-body {
            padding: 1.25rem;
        }
        .scenario-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
        .scenario-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.55;
        }
        @media (max-width: 768px) {
            .scenario-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Localization */
        .local-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
            list-style: none;
        }
        .local-list li {
            background: var(--bg-tertiary);
            padding: 1rem 1.25rem;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-weight: 500;
        }
        .local-list li i {
            color: var(--accent-primary);
        }

        /* Case Studies */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 2rem;
        }
        .case-card {
            background: var(--bg-tertiary);
            padding: 2rem;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
        }
        .case-card .quote {
            font-size: 1rem;
            color: var(--text-secondary);
            font-style: italic;
            margin-bottom: 1rem;
            line-height: 1.6;
        }
        .case-card .author {
            font-weight: 600;
            color: var(--text-warm);
        }
        @media (max-width: 768px) {
            .case-grid {
                grid-template-columns: 1fr;
            }
        }

        /* CMS News Section */
        .news-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 2rem;
            align-items: start;
        }
        .news-main-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .news-item {
            display: flex;
            gap: 1rem;
            padding: 1rem;
            background: var(--bg-tertiary);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            transition: all 0.2s;
        }
        .news-item:hover {
            border-color: var(--accent-primary);
        }
        .news-item img {
            width: 120px;
            height: 80px;
            object-fit: cover;
            border-radius: 0.5rem;
            flex-shrink: 0;
        }
        .news-item h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 0.25rem;
        }
        .news-item .news-date {
            font-size: 0.8rem;
            color: var(--text-secondary);
        }
        .news-sidebar {
            background: var(--bg-tertiary);
            padding: 1.5rem;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            position: sticky;
            top: 90px;
        }
        .news-sidebar h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 1rem;
            color: var(--text-warm);
        }
        .news-sidebar ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .news-sidebar ul li a {
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: color 0.2s;
        }
        .news-sidebar ul li a:hover {
            color: var(--accent-primary);
        }
        @media (max-width: 768px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
            .news-item {
                flex-direction: column;
            }
            .news-item img {
                width: 100%;
                height: 160px;
            }
        }

        /* CTA Contact Sales */
        .cta-sales {
            background: linear-gradient(135deg, #C2410C, #9A3412);
            padding: 60px 0;
            text-align: center;
            border-radius: 0;
        }
        .cta-sales h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        .cta-sales p {
            max-width: 600px;
            margin: 0 auto 2rem;
            font-size: 1.05rem;
            opacity: 0.9;
        }

        /* Fixed bottom CTA */
        .fixed-bottom-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--bg-secondary);
            border-top: 1px solid var(--accent-primary);
            padding: 0.75rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            z-index: 60;
            backdrop-filter: blur(10px);
        }
        .fixed-bottom-bar p {
            font-weight: 600;
            font-size: 0.95rem;
        }
        .fixed-bottom-bar .btn-primary {
            padding: 0.6rem 1.5rem;
            font-size: 0.9rem;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            padding: 40px 0 100px;
            border-top: 1px solid var(--border-color);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-col h4 {
            font-weight: 600;
            margin-bottom: 1rem;
            color: var(--text-warm);
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .footer-col ul li a {
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .footer-col ul li a:hover {
            color: var(--accent-primary);
        }
        .footer-bottom {
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-secondary);
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-color);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* FAB */
        .fab {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 55;
            width: 56px;
            height: 56px;
            background: rgba(10,10,10,0.85);
            backdrop-filter: blur(8px);
            border: 2px solid #EA580C;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FDBA74;
            font-size: 1.5rem;
            cursor: pointer;
            box-shadow: 0 0 20px rgba(6,182,212,0.45);
            transition: all 0.3s;
            animation: floatBreath 3s infinite ease-in-out;
        }
        .fab:hover {
            transform: scale(1.1);
            border-color: #EF4444;
            box-shadow: 0 0 28px rgba(234,88,12,0.65);
        }
        @keyframes floatBreath {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }

/* roulang page: article */
:root {
            --bg-primary: #0A0A0A;
            --bg-secondary: #171717;
            --bg-tertiary: #262626;
            --accent-primary: #EA580C;
            --accent-secondary: #EF4444;
            --text-primary: #FFFFFF;
            --text-secondary: #A3A3A3;
            --text-warm: #FDBA74;
            --border-color: rgba(234, 88, 12, 0.25);
            --shadow-glow: 0 4px 24px rgba(234, 88, 12, 0.25);
            --radius-lg: 1rem;
            --radius-md: 0.75rem;
            --container-max: 1280px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.65;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
        }
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        @media (max-width: 768px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        /* Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background-color: rgba(10, 10, 10, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            transition: background-color 0.3s ease;
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .logo i {
            color: var(--accent-primary);
            font-size: 1.5rem;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            list-style: none;
        }
        .nav-links a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 0.5rem 0;
            position: relative;
            transition: color 0.2s;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--text-primary);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent-primary);
            border-radius: 1px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .btn-login {
            background: transparent;
            border: 1px solid var(--text-secondary);
            color: var(--text-primary);
            padding: 0.5rem 1.25rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s;
            white-space: nowrap;
        }
        .btn-login:hover {
            border-color: var(--accent-primary);
            color: var(--accent-primary);
        }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            border: none;
            color: #fff;
            padding: 0.5rem 1.5rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
            box-shadow: 0 2px 12px rgba(234, 88, 12, 0.35);
            white-space: nowrap;
        }
        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 20px rgba(234, 88, 12, 0.5);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.25rem;
        }
        @media (max-width: 1024px) {
            .nav-links {
                gap: 1rem;
            }
            .nav-links a {
                font-size: 0.8rem;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--bg-secondary);
                flex-direction: column;
                padding: 1.5rem;
                gap: 1rem;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                z-index: 99;
            }
            .nav-links.mobile-open {
                transform: translateY(0);
            }
            .mobile-toggle {
                display: block;
            }
            .btn-login, .btn-signup {
                padding: 0.4rem 1rem;
                font-size: 0.8rem;
            }
            .logo {
                font-size: 1rem;
            }
        }

        /* Article Content */
        .article-main {
            padding-top: 120px;
            padding-bottom: 60px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
            max-width: 860px;
            margin: 0 auto;
        }
        .article-header {
            margin-bottom: 1.5rem;
        }
        .article-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(234, 88, 12, 0.15);
            color: var(--accent-primary);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.35rem 0.9rem;
            border-radius: 2rem;
            margin-bottom: 1rem;
            border: 1px solid rgba(234, 88, 12, 0.3);
        }
        .article-header h1 {
            font-size: 2.3rem;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem;
            color: var(--text-secondary);
            font-size: 0.85rem;
            padding-bottom: 1.25rem;
            border-bottom: 1px solid var(--border-color);
        }
        .article-meta i {
            color: var(--accent-primary);
            margin-right: 0.25rem;
        }
        .article-thumbnail {
            width: 100%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-bottom: 2rem;
            box-shadow: var(--shadow-glow);
        }
        .article-thumbnail img {
            width: 100%;
            object-fit: cover;
            aspect-ratio: 16/9;
        }
        .article-body {
            font-size: 1.05rem;
            line-height: 1.75;
            color: #D1D5DB;
        }
        .article-body h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-top: 2rem;
            margin-bottom: 0.75rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid rgba(234, 88, 12, 0.15);
        }
        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-warm);
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
        }
        .article-body p {
            margin-bottom: 1rem;
        }
        .article-body ul {
            list-style: none;
            padding-left: 0;
            margin-bottom: 1.5rem;
        }
        .article-body ul li {
            position: relative;
            padding-left: 1.5rem;
            margin-bottom: 0.6rem;
        }
        .article-body ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.6rem;
            width: 8px;
            height: 8px;
            background: var(--accent-primary);
            border-radius: 50%;
            transform: rotate(45deg);
        }
        .article-body blockquote {
            border-left: 4px solid var(--accent-primary);
            background: rgba(234, 88, 12, 0.05);
            padding: 1.25rem 1.5rem;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: 1.5rem 0;
            font-style: italic;
            color: #D1D5DB;
        }
        .article-body a {
            color: var(--accent-primary);
            text-decoration: underline;
            font-weight: 500;
        }
        .article-body a:hover {
            color: #FDBA74;
        }
        .article-cta-box {
            background: linear-gradient(135deg, rgba(234, 88, 12, 0.08), rgba(239, 68, 68, 0.08));
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2rem;
            margin: 2rem 0;
            text-align: center;
        }
        .article-cta-box h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }
        .article-cta-box p {
            color: var(--text-secondary);
            margin-bottom: 1rem;
        }
        .btn-cta-glow {
            display: inline-block;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            color: #fff;
            padding: 0.75rem 2rem;
            border-radius: 2rem;
            font-weight: 600;
            transition: all 0.3s;
            box-shadow: var(--shadow-glow);
            border: none;
            cursor: pointer;
            font-size: 0.95rem;
        }
        .btn-cta-glow:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 30px rgba(234, 88, 12, 0.45);
        }

        /* Related Tips Cards */
        .related-section {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 1px solid var(--border-color);
        }
        .related-section h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .related-section h3 i {
            color: var(--accent-primary);
        }
        .tip-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 1.25rem;
        }
        .tip-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.25rem;
            transition: all 0.2s;
            cursor: pointer;
        }
        .tip-card:hover {
            border-color: var(--accent-primary);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }
        .tip-card .tip-icon {
            font-size: 1.6rem;
            color: var(--accent-primary);
            margin-bottom: 0.75rem;
        }
        .tip-card h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.4rem;
        }
        .tip-card p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }
        .tip-card a {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            margin-top: 0.75rem;
            color: var(--accent-primary);
            font-weight: 600;
            font-size: 0.85rem;
        }
        .tip-card a i {
            transition: transform 0.2s;
        }
        .tip-card a:hover i {
            transform: translateX(3px);
        }

        /* Footer */
        .site-footer {
            background-color: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
            letter-spacing: -0.01em;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        .footer-col ul li a {
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: color 0.2s;
        }
        .footer-col ul li a:hover {
            color: var(--accent-primary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 1.25rem;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 0.8rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .not-found {
            text-align: center;
            padding: 4rem 2rem;
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
        }
        .not-found i {
            font-size: 3rem;
            color: var(--accent-primary);
            margin-bottom: 1rem;
        }
        .not-found h2 {
            font-size: 1.5rem;
            margin-bottom: 0.5rem;
        }
        .not-found p {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
        }
        .not-found a {
            color: var(--accent-primary);
            font-weight: 600;
            text-decoration: underline;
        }

        /* FAB */
        .fab-left {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(10, 10, 10, 0.85);
            backdrop-filter: blur(10px);
            border: 2px solid var(--accent-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 0 20px rgba(234, 88, 12, 0.3);
            transition: all 0.3s;
        }
        .fab-left i {
            color: var(--accent-primary);
            font-size: 1.4rem;
        }
        .fab-left:hover {
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(234, 88, 12, 0.5);
        }

        @media (max-width: 768px) {
            .article-header h1 {
                font-size: 1.6rem;
            }
            .article-body {
                font-size: 0.95rem;
            }
            .article-body h2 {
                font-size: 1.3rem;
            }
            .tip-grid {
                grid-template-columns: 1fr;
            }
            .article-cta-box {
                padding: 1.25rem;
            }
            .fab-left {
                width: 48px;
                height: 48px;
                left: 0.75rem;
                bottom: 5rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0A0A0A;
            --bg-secondary: #171717;
            --bg-tertiary: #262626;
            --accent-primary: #EA580C;
            --accent-secondary: #EF4444;
            --text-primary: #FFFFFF;
            --text-secondary: #A3A3A3;
            --text-warm: #FDBA74;
            --border-color: rgba(234, 88, 12, 0.25);
            --shadow-glow: 0 4px 24px rgba(234, 88, 12, 0.25);
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
            --radius-lg: 1rem;
            --radius-md: 0.75rem;
            --radius-sm: 0.5rem;
            --container-max: 1280px;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.65;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
        }
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        @media (max-width: 768px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        /* Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background-color: rgba(10, 10, 10, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            transition: background-color var(--transition-smooth);
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 1.5rem;
        }
        .logo {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }
        .logo i {
            color: var(--accent-primary);
            font-size: 1.4rem;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.25rem;
            list-style: none;
            flex-wrap: wrap;
        }
        .nav-links a {
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 0.4rem 0;
            position: relative;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--text-primary);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent-primary);
            border-radius: 1px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }
        .btn-login {
            background: transparent;
            border: 1px solid var(--text-secondary);
            color: var(--text-primary);
            padding: 0.45rem 1.1rem;
            border-radius: 2rem;
            font-size: 0.82rem;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-login:hover {
            border-color: var(--accent-primary);
            color: var(--accent-primary);
        }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            border: none;
            color: #fff;
            padding: 0.45rem 1.3rem;
            border-radius: 2rem;
            font-size: 0.82rem;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-fast);
            box-shadow: 0 2px 12px rgba(234, 88, 12, 0.35);
            white-space: nowrap;
        }
        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 20px rgba(234, 88, 12, 0.5);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.25rem;
        }
        @media (max-width: 1024px) {
            .nav-links {
                gap: 0.8rem;
            }
            .nav-links a {
                font-size: 0.78rem;
            }
            .btn-login, .btn-signup {
                padding: 0.4rem 0.9rem;
                font-size: 0.78rem;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--bg-secondary);
                flex-direction: column;
                padding: 1.5rem;
                gap: 1rem;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                transition: transform var(--transition-smooth);
                z-index: 99;
            }
            .nav-links.mobile-open {
                transform: translateY(0);
            }
            .mobile-toggle {
                display: block;
            }
        }
        @media (max-width: 520px) {
            .nav-container {
                height: 64px;
            }
            .logo {
                font-size: 1rem;
            }
            .btn-login, .btn-signup {
                padding: 0.35rem 0.8rem;
                font-size: 0.75rem;
            }
        }

        /* Hero Section - Roadmap / Timeline */
        .hero-category {
            padding-top: 130px;
            padding-bottom: 70px;
            background: linear-gradient(180deg, #0A0A0A 0%, #171717 100%);
            position: relative;
            overflow: hidden;
        }
        .hero-category::after {
            content: '';
            position: absolute;
            top: -20%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(234,88,12,0.08) 0%, transparent 70%);
            border-radius: 50%;
        }
        .hero-category-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-category-text h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 1.25rem;
            background: linear-gradient(135deg, var(--text-primary), var(--text-warm));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-category-text .subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 2rem;
        }
        .timeline-roadmap {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2rem;
            position: relative;
            z-index: 1;
        }
        .timeline-item {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            padding: 1rem 0;
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }
        .timeline-item:last-child {
            border-bottom: none;
        }
        .timeline-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent-primary);
            flex-shrink: 0;
            margin-top: 5px;
            box-shadow: 0 0 14px rgba(234,88,12,0.5);
        }
        .timeline-info h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 0.25rem;
        }
        .timeline-info p {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }
        .subscribe-box {
            display: flex;
            gap: 0.5rem;
            margin-top: 1.5rem;
            flex-wrap: wrap;
        }
        .subscribe-box input {
            flex: 1;
            min-width: 200px;
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            padding: 0.7rem 1rem;
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            outline: none;
            transition: border var(--transition-fast);
        }
        .subscribe-box input:focus {
            border-color: var(--accent-primary);
        }
        .subscribe-box button {
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            border: none;
            color: #fff;
            padding: 0.7rem 1.5rem;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .subscribe-box button:hover {
            transform: translateY(-1px);
            box-shadow: var(--shadow-glow);
        }
        @media (max-width: 768px) {
            .hero-category-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .hero-category-text h1 {
                font-size: 1.8rem;
            }
            .hero-category-text .subtitle {
                font-size: 0.95rem;
            }
        }

        /* Section Shared */
        .section {
            padding: 70px 0;
        }
        .section-dark {
            background: var(--bg-secondary);
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--accent-primary);
            background: rgba(234, 88, 12, 0.1);
            padding: 0.35rem 0.9rem;
            border-radius: 2rem;
            margin-bottom: 1rem;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        .section-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 700px;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .section {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
        }

        /* Reason Cards Grid */
        .reasons-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
            margin-top: 2.5rem;
        }
        .reason-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .reason-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(180deg, var(--accent-primary), var(--accent-secondary));
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }
        .reason-card:hover {
            border-color: rgba(234, 88, 12, 0.5);
            box-shadow: var(--shadow-glow);
            transform: translateY(-3px);
        }
        .reason-card:hover::before {
            opacity: 1;
        }
        .reason-icon {
            font-size: 2rem;
            color: var(--accent-primary);
            margin-bottom: 1rem;
        }
        .reason-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
        }
        .reason-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Check Point Flow */
        .check-flow {
            display: flex;
            flex-wrap: wrap;
            gap: 1px;
            background: var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-top: 2.5rem;
        }
        .check-flow-item {
            flex: 1;
            min-width: 200px;
            background: var(--bg-secondary);
            padding: 2rem 1.5rem;
            text-align: left;
            position: relative;
        }
        .check-flow-item .step-num {
            font-size: 2.5rem;
            font-weight: 800;
            color: rgba(234, 88, 12, 0.2);
            line-height: 1;
            margin-bottom: 0.75rem;
        }
        .check-flow-item h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .check-flow-item p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .check-flow {
                flex-direction: column;
            }
            .check-flow-item {
                min-width: 100%;
            }
        }

        /* Evidence / Proof */
        .evidence-banner {
            background: linear-gradient(135deg, rgba(234,88,12,0.08), rgba(239,68,68,0.06));
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            align-items: center;
            margin-top: 2.5rem;
        }
        .evidence-banner img {
            border-radius: var(--radius-md);
            aspect-ratio: 16/10;
            object-fit: cover;
            width: 100%;
        }
        .evidence-banner h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
        }
        .evidence-banner ul {
            list-style: none;
        }
        .evidence-banner ul li {
            padding: 0.5rem 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
        }
        .evidence-banner ul li i {
            color: var(--accent-primary);
            margin-top: 3px;
        }
        @media (max-width: 768px) {
            .evidence-banner {
                grid-template-columns: 1fr;
                padding: 1.5rem;
            }
        }

        /* FAQ */
        .faq-block {
            margin-top: 2.5rem;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border var(--transition-fast);
        }
        .faq-item:hover {
            border-color: rgba(234, 88, 12, 0.45);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1rem;
            font-weight: 600;
            padding: 1.25rem 1.5rem;
            text-align: left;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }
        .faq-answer {
            padding: 0 1.5rem 1.25rem;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* CTA Bar */
        .cta-bar {
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            border-radius: var(--radius-lg);
            padding: 2.5rem 2rem;
            text-align: left;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            margin-top: 3rem;
        }
        .cta-bar h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
        }
        .cta-bar p {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.85);
        }
        .cta-bar .btn-cta {
            background: #fff;
            color: #000;
            padding: 0.75rem 2rem;
            border-radius: 2rem;
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .cta-bar .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0,0,0,0.3);
        }

        /* Content List */
        .content-list-section {
            margin-top: 2.5rem;
        }
        .content-list-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.25rem;
        }
        .content-list-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }
        .content-list-card:hover {
            border-color: rgba(234, 88, 12, 0.5);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }
        .content-list-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-bottom: 1px solid var(--border-color);
        }
        .content-list-card .card-body {
            padding: 1.25rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .content-list-card h5 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
            line-height: 1.4;
        }
        .content-list-card .card-meta {
            font-size: 0.78rem;
            color: var(--accent-primary);
            margin-bottom: 0.5rem;
        }
        .content-list-card .card-excerpt {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.55;
            flex: 1;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 4rem 0 2rem;
            margin-top: 4rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2.5rem;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 0.6rem;
        }
        .footer-col ul li a {
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--accent-primary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.82rem;
            color: var(--text-secondary);
        }

        /* FAB */
        .fab-float {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #EA580C, #EF4444);
            border: 2px solid rgba(234,88,12,0.5);
            box-shadow: 0 6px 25px rgba(234,88,12,0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition-smooth);
            font-size: 1.5rem;
            color: #fff;
            animation: fabBreath 3s ease-in-out infinite;
        }
        .fab-float:hover {
            transform: scale(1.1);
            box-shadow: 0 8px 35px rgba(234,88,12,0.55);
        }
        @keyframes fabBreath {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        .fab-badge {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 18px;
            height: 18px;
            background: #ef4444;
            border-radius: 50%;
            border: 2px solid #fff;
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0A0A0A;
            --bg-secondary: #171717;
            --bg-tertiary: #262626;
            --accent-primary: #EA580C;
            --accent-secondary: #EF4444;
            --text-primary: #FFFFFF;
            --text-secondary: #A3A3A3;
            --text-warm: #FDBA74;
            --border-color: rgba(234, 88, 12, 0.25);
            --shadow-glow: 0 4px 24px rgba(234, 88, 12, 0.25);
            --radius-lg: 1rem;
            --radius-md: 0.75rem;
            --container-max: 1280px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
        }
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        @media (max-width: 768px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }
        /* Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background-color: rgba(10, 10, 10, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            transition: background-color 0.3s ease;
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .logo i {
            color: var(--accent-primary);
            font-size: 1.5rem;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            list-style: none;
        }
        .nav-links a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 0.5rem 0;
            position: relative;
            transition: color 0.2s;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--text-primary);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent-primary);
            border-radius: 1px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .btn-login {
            background: transparent;
            border: 1px solid var(--text-secondary);
            color: var(--text-primary);
            padding: 0.5rem 1.25rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s;
            white-space: nowrap;
        }
        .btn-login:hover {
            border-color: var(--accent-primary);
            color: var(--accent-primary);
        }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            border: none;
            color: #fff;
            padding: 0.5rem 1.5rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
            box-shadow: 0 2px 12px rgba(234, 88, 12, 0.35);
            white-space: nowrap;
        }
        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 20px rgba(234, 88, 12, 0.5);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.25rem;
        }
        @media (max-width: 1024px) {
            .nav-links {
                gap: 1rem;
                font-size: 0.85rem;
            }
            .nav-links a {
                font-size: 0.8rem;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--bg-secondary);
                flex-direction: column;
                padding: 1.5rem;
                gap: 1rem;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                z-index: 99;
            }
            .nav-links.mobile-open {
                transform: translateY(0);
            }
            .mobile-toggle {
                display: block;
            }
            .btn-login, .btn-signup {
                padding: 0.4rem 1rem;
                font-size: 0.8rem;
            }
        }
        /* Hero Category */
        .hero-category {
            padding-top: 120px;
            padding-bottom: 60px;
            background: linear-gradient(180deg, #0A0A0A 0%, #171717 100%);
            position: relative;
            overflow: hidden;
        }
        .hero-category::before {
            content: '';
            position: absolute;
            top: -30%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(234,88,12,0.10) 0%, transparent 70%);
            border-radius: 50%;
        }
        .hero-cat-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-cat-text h1 {
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }
        .hero-cat-text h1 span {
            color: var(--accent-primary);
        }
        .hero-cat-text p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 2rem;
            line-height: 1.6;
        }
        .hero-cat-image {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-glow);
        }
        .hero-cat-image img {
            width: 100%;
            height: auto;
        }
        .btn-primary {
            display: inline-block;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            color: #fff;
            padding: 0.9rem 2rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.2s;
            box-shadow: 0 4px 20px rgba(234, 88, 12, 0.45);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 28px rgba(234, 88, 12, 0.6);
        }
        @media (max-width: 768px) {
            .hero-cat-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .hero-cat-text h1 {
                font-size: 2rem;
            }
        }
        /* Section Spacing */
        section {
            padding: 4rem 0;
        }
        section:nth-child(even) {
            background-color: var(--bg-secondary);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: 2.5rem;
            max-width: 700px;
        }
        /* Cards */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .card-grid.two-cols {
            grid-template-columns: repeat(2, 1fr);
        }
        .card {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            transition: all 0.25s ease;
            position: relative;
        }
        .card:hover {
            border-color: var(--accent-primary);
            box-shadow: 0 8px 28px rgba(234, 88, 12, 0.18);
            transform: translateY(-2px);
        }
        .card-icon {
            width: 52px;
            height: 52px;
            background: rgba(234, 88, 12, 0.12);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1rem;
            color: var(--accent-primary);
            font-size: 1.4rem;
        }
        .card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.65rem;
            color: var(--text-primary);
        }
        .card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.55;
        }
        .card .tag {
            display: inline-block;
            background: rgba(234,88,12,0.2);
            color: var(--accent-primary);
            font-size: 0.75rem;
            padding: 0.25rem 0.65rem;
            border-radius: 2rem;
            font-weight: 600;
            margin-top: 0.75rem;
        }
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .card-grid,
            .card-grid.two-cols {
                grid-template-columns: 1fr;
            }
        }
        /* Step Flow */
        .step-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            max-width: 800px;
        }
        .step-item {
            display: flex;
            gap: 1.25rem;
            padding: 1.5rem;
            background: var(--bg-tertiary);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            transition: border-color 0.2s;
        }
        .step-item:hover {
            border-color: var(--accent-primary);
        }
        .step-num {
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
            color: #fff;
            flex-shrink: 0;
        }
        .step-info h4 {
            font-size: 1.1rem;
            margin-bottom: 0.35rem;
        }
        .step-info p {
            color: var(--text-secondary);
            font-size: 0.95rem;
        }
        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        details.faq-item {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.25rem 1.5rem;
            margin-bottom: 0.75rem;
            transition: all 0.2s;
        }
        details.faq-item:hover {
            border-color: var(--accent-primary);
        }
        details.faq-item summary {
            font-weight: 600;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-primary);
        }
        details.faq-item summary::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            color: var(--accent-primary);
            transition: transform 0.2s;
        }
        details.faq-item[open] summary::after {
            transform: rotate(180deg);
        }
        .faq-answer {
            margin-top: 0.75rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        /* CTA Banner */
        .cta-banner {
            background: linear-gradient(135deg, rgba(234,88,12,0.15), rgba(239,68,68,0.15));
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2.5rem 2rem;
            text-align: left;
        }
        .cta-banner h3 {
            font-size: 1.6rem;
            margin-bottom: 0.5rem;
        }
        .cta-banner p {
            color: var(--text-secondary);
            margin-bottom: 1.25rem;
            max-width: 600px;
        }
        /* Article List (optional) */
        .article-list-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .article-card {
            background: var(--bg-tertiary);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: all 0.2s;
        }
        .article-card:hover {
            border-color: var(--accent-primary);
            transform: translateY(-3px);
            box-shadow: 0 10px 28px rgba(234,88,12,0.12);
        }
        .article-img {
            height: 160px;
            overflow: hidden;
            background: #1a1a1a;
        }
        .article-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .article-body {
            padding: 1rem 1.25rem 1.25rem;
        }
        .article-body .article-cat {
            font-size: 0.7rem;
            color: var(--accent-primary);
            text-transform: uppercase;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 0.3rem;
        }
        .article-body h5 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.35rem;
            line-height: 1.35;
        }
        .article-body p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.4;
        }
        @media (max-width: 1024px) {
            .article-list-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .article-list-grid {
                grid-template-columns: 1fr;
            }
        }
        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 3rem 0 1.5rem;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-col h4 {
            color: var(--text-primary);
            font-size: 1rem;
            margin-bottom: 0.75rem;
            font-weight: 700;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        .footer-col ul li a {
            color: var(--text-secondary);
            transition: color 0.2s;
        }
        .footer-col ul li a:hover {
            color: var(--accent-primary);
        }
        .footer-bottom {
            text-align: center;
            border-top: 1px solid var(--border-color);
            padding-top: 1.5rem;
            font-size: 0.8rem;
        }
        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        /* Left FAB */
        .fab-left {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            background: rgba(10,10,10,0.85);
            backdrop-filter: blur(10px);
            border: 2px solid transparent;
            border-image: linear-gradient(135deg, #EA580C, #EF4444) 1;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #EA580C;
            font-size: 1.5rem;
            cursor: pointer;
            transition: all 0.25s;
            box-shadow: 0 0 18px rgba(234,88,12,0.35);
            opacity: 0.8;
        }
        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 26px rgba(234,88,12,0.55);
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0A0A0A;
            --bg-secondary: #171717;
            --bg-tertiary: #262626;
            --accent-primary: #EA580C;
            --accent-secondary: #EF4444;
            --text-primary: #FFFFFF;
            --text-secondary: #A3A3A3;
            --text-warm: #FDBA74;
            --border-color: rgba(234, 88, 12, 0.25);
            --shadow-glow: 0 4px 24px rgba(234, 88, 12, 0.25);
            --radius-lg: 1rem;
            --radius-md: 0.75rem;
            --container-max: 1280px;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
        }
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        @media (max-width: 640px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }
        /* Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background-color: rgba(10, 10, 10, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            transition: background-color 0.3s ease;
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .logo i {
            color: var(--accent-primary);
            font-size: 1.5rem;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            list-style: none;
        }
        .nav-links a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 0.5rem 0;
            position: relative;
            transition: color 0.2s;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--text-primary);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent-primary);
            border-radius: 1px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .btn-login {
            background: transparent;
            border: 1px solid var(--text-secondary);
            color: var(--text-primary);
            padding: 0.5rem 1.25rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s;
            white-space: nowrap;
        }
        .btn-login:hover {
            border-color: var(--accent-primary);
            color: var(--accent-primary);
        }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            border: none;
            color: #fff;
            padding: 0.5rem 1.5rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
            box-shadow: 0 2px 12px rgba(234, 88, 12, 0.35);
            white-space: nowrap;
        }
        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 20px rgba(234, 88, 12, 0.5);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.25rem;
        }
        @media (max-width: 1024px) {
            .nav-links {
                gap: 1rem;
            }
            .nav-links a {
                font-size: 0.8rem;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--bg-secondary);
                flex-direction: column;
                padding: 1.5rem;
                gap: 1rem;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                z-index: 99;
            }
            .nav-links.mobile-open {
                transform: translateY(0);
            }
            .mobile-toggle {
                display: block;
            }
            .btn-login, .btn-signup {
                padding: 0.4rem 1rem;
                font-size: 0.8rem;
            }
        }
        /* Hero */
        .hero {
            padding-top: 120px;
            padding-bottom: 60px;
            background: linear-gradient(180deg, #0A0A0A 0%, #171717 100%);
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -15%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(234,88,12,0.10) 0%, transparent 70%);
            border-radius: 50%;
        }
        .hero-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-text h1 {
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }
        .hero-text h1 .highlight {
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-text p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 2rem;
            line-height: 1.7;
        }
        .hero-image {
            position: relative;
        }
        .hero-image img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-glow);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            color: #fff;
            padding: 0.875rem 2rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 4px 18px rgba(234, 88, 12, 0.4);
            white-space: nowrap;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(234, 88, 12, 0.55);
        }
        @media (max-width: 768px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .hero-text h1 {
                font-size: 1.8rem;
            }
            .hero-text p {
                font-size: 0.95rem;
            }
        }
        /* Sections */
        .section {
            padding: 80px 0;
        }
        .section-dark {
            background-color: var(--bg-secondary);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--text-primary);
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: 3rem;
            max-width: 700px;
        }
        /* Cards */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.75rem;
        }
        .card {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2rem;
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }
        .card:hover {
            border-color: var(--accent-primary);
            box-shadow: var(--shadow-glow);
            transform: translateY(-3px);
        }
        .card-icon {
            font-size: 2.25rem;
            color: var(--accent-primary);
            margin-bottom: 1rem;
        }
        .card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
        }
        .card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        /* Steps */
        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 2rem;
            counter-reset: step;
        }
        .step-item {
            display: flex;
            gap: 1.5rem;
            align-items: flex-start;
            counter-increment: step;
        }
        .step-number {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.25rem;
            color: #fff;
        }
        .step-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .step-body p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        /* Evidence block */
        .evidence-block {
            background: var(--bg-tertiary);
            border-left: 4px solid var(--accent-primary);
            padding: 2rem;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
        }
        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.3s;
        }
        .faq-item.active {
            border-color: var(--accent-primary);
        }
        .faq-question {
            padding: 1.25rem 1.5rem;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: color 0.2s;
        }
        .faq-question:hover {
            color: var(--accent-primary);
        }
        .faq-answer {
            padding: 0 1.5rem 1.25rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        /* CTA Bar */
        .cta-bar {
            background: linear-gradient(135deg, rgba(234,88,12,0.15), rgba(239,68,68,0.15));
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 3rem 2rem;
            text-align: center;
        }
        .cta-bar h2 {
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        .cta-bar p {
            color: var(--text-secondary);
            margin-bottom: 2rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        /* Footer */
        .site-footer {
            background-color: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-col h4 {
            font-weight: 700;
            margin-bottom: 1rem;
            font-size: 1.05rem;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }
        .footer-col ul li a {
            color: var(--text-secondary);
            font-size: 0.9rem;
            transition: color 0.2s;
        }
        .footer-col ul li a:hover {
            color: var(--text-primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-secondary);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        /* Post list */
        .post-list-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
        }
        .post-card {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.3s;
        }
        .post-card:hover {
            border-color: var(--accent-primary);
            box-shadow: var(--shadow-glow);
        }
        .post-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .post-card-body {
            padding: 1.25rem;
        }
        .post-card-body h4 {
            font-weight: 600;
            font-size: 1.05rem;
            margin-bottom: 0.5rem;
        }
        .post-card-body p {
            color: var(--text-secondary);
            font-size: 0.85rem;
            line-height: 1.5;
        }
        /* Fixed CTA bottom bar */
        .fixed-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 1rem 0;
            z-index: 90;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 1rem;
        }
        @media (max-width: 640px) {
            .fixed-cta-bar {
                flex-direction: column;
                gap: 0.75rem;
                padding: 0.75rem 1rem;
            }
        }

/* roulang page: category4 */
:root {
            --bg-primary: #0A0A0A;
            --bg-secondary: #171717;
            --bg-tertiary: #262626;
            --accent-primary: #EA580C;
            --accent-secondary: #EF4444;
            --text-primary: #FFFFFF;
            --text-secondary: #A3A3A3;
            --text-warm: #FDBA74;
            --border-color: rgba(234, 88, 12, 0.25);
            --shadow-glow: 0 4px 24px rgba(234, 88, 12, 0.25);
            --radius-lg: 1rem;
            --radius-md: 0.75rem;
            --container-max: 1280px;
        }

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

        body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

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

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (max-width: 640px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        /* Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background-color: rgba(10, 10, 10, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            transition: background-color 0.3s ease;
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .logo {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .logo i {
            color: var(--accent-primary);
            font-size: 1.5rem;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            list-style: none;
        }

        .nav-links a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 0.5rem 0;
            position: relative;
            transition: color 0.2s;
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: var(--text-primary);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent-primary);
            border-radius: 1px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .btn-login {
            background: transparent;
            border: 1px solid var(--text-secondary);
            color: var(--text-primary);
            padding: 0.5rem 1.25rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s;
            white-space: nowrap;
        }

        .btn-login:hover {
            border-color: var(--accent-primary);
            color: var(--accent-primary);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            border: none;
            color: #fff;
            padding: 0.5rem 1.5rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
            box-shadow: 0 2px 12px rgba(234, 88, 12, 0.35);
            white-space: nowrap;
        }

        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 20px rgba(234, 88, 12, 0.5);
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.25rem;
        }

        @media (max-width: 1024px) {
            .nav-links {
                gap: 1rem;
            }
            .nav-links a {
                font-size: 0.8rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--bg-secondary);
                flex-direction: column;
                padding: 1.5rem;
                gap: 1rem;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                z-index: 99;
            }
            .nav-links.mobile-open {
                transform: translateY(0);
            }
            .mobile-toggle {
                display: block;
            }
            .btn-login, .btn-signup {
                padding: 0.4rem 1rem;
                font-size: 0.8rem;
            }
        }

        /* Hero Help Center */
        .hero-help {
            padding-top: 140px;
            padding-bottom: 80px;
            background: linear-gradient(180deg, #0A0A0A 0%, #171717 100%);
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .hero-help::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(234,88,12,0.08) 0%, transparent 70%);
            border-radius: 50%;
        }
        .hero-help h1 {
            font-size: 2.75rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            margin-bottom: 1rem;
            position: relative;
            z-index: 1;
        }
        .hero-help .hero-sub {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 650px;
            margin: 0 auto 1.5rem;
            position: relative;
            z-index: 1;
        }
        .help-chips {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.75rem;
            margin-top: 2rem;
            position: relative;
            z-index: 1;
        }
        .help-chip {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            padding: 0.6rem 1.25rem;
            border-radius: 2rem;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.2s;
        }
        .help-chip:hover {
            background: var(--accent-primary);
            color: #fff;
            border-color: var(--accent-primary);
            transform: translateY(-2px);
        }
        @media (max-width: 768px) {
            .hero-help h1 {
                font-size: 2rem;
            }
            .hero-help .hero-sub {
                font-size: 1rem;
            }
        }

        /* Section Base */
        .section {
            padding: 70px 0;
        }
        .section-dark {
            background-color: var(--bg-secondary);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1rem;
            text-align: left;
        }
        .section-desc {
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 700px;
            margin-bottom: 2.5rem;
            text-align: left;
        }

        /* Risk Cards */
        .risk-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
        }
        .risk-card {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }
        .risk-card:hover {
            border-color: var(--accent-primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow);
        }
        .risk-icon {
            width: 48px;
            height: 48px;
            background: rgba(234,88,12,0.15);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-primary);
            margin-bottom: 1rem;
        }
        .risk-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .risk-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        /* Scenario Block */
        .scenario-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }
        .scenario-block img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-glow);
        }
        .scenario-list {
            list-style: none;
            padding: 0;
        }
        .scenario-list li {
            display: flex;
            gap: 0.75rem;
            margin-bottom: 1rem;
            color: var(--text-secondary);
            font-size: 1rem;
            align-items: flex-start;
        }
        .scenario-list i {
            color: var(--accent-primary);
            margin-top: 0.2rem;
            font-size: 1rem;
        }
        @media (max-width: 768px) {
            .scenario-block {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
        }

        /* Checklist */
        .checklist-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1rem;
        }
        .checklist-item {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.25rem 1.5rem;
            display: flex;
            align-items: center;
            gap: 1rem;
            transition: all 0.2s;
        }
        .checklist-item:hover {
            border-color: var(--accent-primary);
        }
        .checklist-item i {
            color: #10B981;
            font-size: 1.25rem;
            flex-shrink: 0;
        }
        .checklist-item span {
            font-weight: 500;
            font-size: 0.95rem;
        }

        /* CTA Bottom Fixed */
        .cta-fixed-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(23,23,23,0.97);
            backdrop-filter: blur(12px);
            border-top: 1px solid var(--border-color);
            padding: 1rem 0;
            z-index: 90;
            display: none;
        }
        .cta-fixed-bar.visible {
            display: block;
        }
        .cta-fixed-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .cta-fixed-inner p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin: 0;
        }

        /* Article List */
        .article-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.5rem;
        }
        .article-card {
            background: var(--bg-tertiary);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: all 0.3s;
        }
        .article-card:hover {
            border-color: var(--accent-primary);
            transform: translateY(-2px);
        }
        .article-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .article-card-body {
            padding: 1.25rem;
        }
        .article-card-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
        .article-card-body p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 0.5rem;
        }
        .article-card-body .article-meta {
            font-size: 0.8rem;
            color: var(--accent-primary);
            font-weight: 500;
        }

        /* Footer */
        .site-footer {
            background-color: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 3rem 0 1.5rem;
            margin-top: 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        .footer-col ul li a {
            color: var(--text-secondary);
            font-size: 0.9rem;
            transition: color 0.2s;
        }
        .footer-col ul li a:hover {
            color: var(--accent-primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 1.5rem;
            text-align: center;
            color: var(--text-secondary);
            font-size: 0.85rem;
        }

        /* FAB */
        .fab {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            width: 56px;
            height: 56px;
            background: linear-gradient(135deg, #EA580C, #EF4444);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.5rem;
            box-shadow: 0 6px 25px rgba(234,88,12,0.45);
            cursor: pointer;
            z-index: 80;
            transition: all 0.3s;
            animation: float 3s ease-in-out infinite;
        }
        .fab:hover {
            transform: scale(1.1);
            box-shadow: 0 8px 30px rgba(234,88,12,0.6);
        }
        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }