/* roulang page: index */
:root {
            --deep-bg: #0A0A0C;
            --charcoal: #141418;
            --platinum: #E5E8E8;
            --champagne-gold: #F0E68C;
            --darker-gold: #B89B4E;
            --white: #FFFFFF;
            --gray-light: #D5D8DC;
            --gray-mid: #6B7280;
            --border-dim: rgba(229, 232, 232, 0.12);
            --shadow-elegant: 0 18px 40px -12px rgba(0,0,0,0.65);
            --shadow-gold: 0 8px 24px rgba(240, 230, 140, 0.08);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --font-heading: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-body: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
        }

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

        body {
            font-family: var(--font-body);
            background-color: var(--deep-bg);
            color: var(--gray-light);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-weight: 400;
            letter-spacing: 0.01em;
        }

        h1, h2, h3, h4, .serif-accent {
            font-family: var(--font-heading);
            font-weight: 600;
            color: var(--white);
            letter-spacing: -0.02em;
        }

        h1 {
            font-size: 2.8rem;
            line-height: 1.2;
            margin-bottom: 0.75rem;
        }

        h2 {
            font-size: 2rem;
            line-height: 1.3;
            margin-bottom: 0.75rem;
            position: relative;
        }

        h3 {
            font-size: 1.35rem;
            line-height: 1.4;
            margin-bottom: 0.5rem;
            color: var(--platinum);
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* Platinum Luxury Nav */
        .site-header {
            background: rgba(10,10,12,0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-dim);
            position: sticky;
            top: 0;
            z-index: 50;
            transition: background 0.3s ease;
        }

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

        .logo-text {
            font-family: var(--font-heading);
            font-weight: 650;
            font-size: 1.4rem;
            letter-spacing: -0.02em;
            color: var(--white);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

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

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2.5rem;
            list-style: none;
            margin: 0;
        }

        .nav-links a {
            color: var(--gray-light);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            position: relative;
            padding: 0.35rem 0;
            transition: color 0.2s;
        }

        .nav-links a:after {
            content: '';
            position: absolute;
            bottom: -3px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--champagne-gold);
            transition: width 0.25s ease;
        }

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

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

        .mobile-menu-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--white);
            font-size: 1.8rem;
            cursor: pointer;
        }

        /* Sections */
        section {
            padding: 4.5rem 0;
        }

        .hero-section {
            padding: 3rem 0 5rem;
            background: radial-gradient(circle at 30% 20%, rgba(240,230,140,0.06) 0%, transparent 55%);
        }

        .download-card-hero {
            background: var(--charcoal);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 2.5rem;
            box-shadow: var(--shadow-elegant);
        }

        .hero-cover {
            flex: 1 1 240px;
            background: linear-gradient(145deg, #2a2a2f, #18181c);
            border-radius: var(--radius-md);
            padding: 2rem;
            text-align: center;
            border: 1px solid rgba(240,230,140,0.2);
        }

        .hero-cover img {
            max-width: 160px;
            border-radius: var(--radius-sm);
            box-shadow: 0 20px 35px -15px black;
            margin-bottom: 1.2rem;
        }

        .hero-content {
            flex: 2 1 400px;
        }

        .gold-badge {
            background: rgba(240,230,140,0.12);
            color: var(--champagne-gold);
            border: 1px solid rgba(240,230,140,0.3);
            padding: 0.2rem 1rem;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 1rem;
            letter-spacing: 0.03em;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.8rem 2rem;
            border-radius: 40px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.2s ease;
            border: none;
            cursor: pointer;
            font-size: 0.95rem;
        }

        .btn-gold {
            background: linear-gradient(135deg, #F0E68C 0%, #C5A059 100%);
            color: #0A0A0C;
            box-shadow: 0 10px 18px -8px rgba(240,230,140,0.2);
        }

        .btn-gold:hover {
            background: #FFF1A0;
            color: #000;
            transform: translateY(-2px);
            box-shadow: 0 18px 25px -10px rgba(240,230,140,0.35);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid var(--platinum);
            color: var(--white);
        }

        .btn-outline:hover {
            background: rgba(229,232,232,0.07);
            border-color: var(--white);
        }

        .vertical-scroll-cards {
            display: flex;
            flex-direction: column;
            gap: 1.8rem;
            margin-top: 1.2rem;
        }

        .testimonial-card {
            background: var(--charcoal);
            border-left: 4px solid var(--champagne-gold);
            padding: 1.5rem;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            box-shadow: var(--shadow-gold);
        }

        .grid-3col {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 2rem;
        }

        .feature-panel {
            background: var(--charcoal);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            border: 1px solid var(--border-dim);
            transition: transform 0.2s, border-color 0.2s;
        }

        .feature-panel:hover {
            border-color: var(--darker-gold);
            transform: translateY(-5px);
        }

        .icon-circle {
            width: 54px;
            height: 54px;
            background: rgba(240,230,140,0.08);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--champagne-gold);
            font-size: 1.5rem;
            margin-bottom: 1.2rem;
        }

        .faq-item {
            background: var(--charcoal);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            padding: 1.2rem 1.8rem;
            transition: background 0.2s;
        }

        .faq-question {
            font-weight: 600;
            color: var(--white);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .footer-platinum {
            background: #0F0F12;
            border-top: 1px solid var(--border-dim);
            padding: 3rem 0 1.5rem;
            color: var(--gray-mid);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px,1fr));
            gap: 2rem;
        }

        @media (max-width: 768px) {
            h1 { font-size: 2rem; }
            .nav-links { display: none; }
            .mobile-menu-toggle { display: block; }
            .download-card-hero { flex-direction: column; }
        }

        /* FAB */
        .fab-left {
            position: fixed;
            left: 1.5rem;
            bottom: 5rem;
            z-index: 45;
            width: 52px;
            height: 52px;
            background: rgba(20,20,24,0.8);
            backdrop-filter: blur(10px);
            border-radius: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--champagne-gold);
            color: var(--champagne-gold);
            box-shadow: 0 4px 20px rgba(240,230,140,0.2);
            transition: 0.2s;
            font-size: 1.3rem;
        }
        .fab-left:hover {
            background: var(--champagne-gold);
            color: #0A0A0C;
            transform: scale(1.08);
        }

/* roulang page: article */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-card: #0D3320;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-primary: #FFFFFF;
            --text-secondary: #D1F2EB;
            --border-dim: rgba(255, 215, 0, 0.25);
            --border-gold: rgba(255, 215, 0, 0.6);
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
            --shadow-btn: 0 4px 12px rgba(255, 215, 0, 0.2);
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-sm: 8px;
            --font-heading: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-body: 'Inter', 'Segoe UI', -apple-system, sans-serif;
            --transition-smooth: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --content-max-width: 800px;
        }

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

        body {
            font-family: var(--font-body);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            letter-spacing: 0.01em;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header & Navigation */
        .main-header {
            background: linear-gradient(180deg, rgba(10, 46, 28, 0.98) 0%, rgba(18, 62, 37, 0.96) 100%);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-dim);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 16px 24px;
            min-height: 70px;
        }

        .logo {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--accent-gold);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.02em;
            white-space: nowrap;
            transition: opacity var(--transition-smooth);
        }
        .logo:hover { opacity: 0.85; color: var(--accent-gold); }
        .logo i { font-size: 1.5rem; color: var(--accent-gold); }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 8px;
            align-items: center;
            margin: 0;
        }

        .nav-links a {
            display: block;
            padding: 10px 18px;
            color: var(--text-secondary);
            text-decoration: none;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-smooth);
            position: relative;
            white-space: nowrap;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 18px;
            right: 18px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 1px;
        }

        .nav-cta-group {
            display: flex;
            gap: 12px;
            align-items: center;
        }

        .btn-login {
            padding: 10px 20px;
            border: 1px solid var(--border-gold);
            background: transparent;
            color: var(--accent-gold);
            font-weight: 700;
            border-radius: var(--radius-sm);
            cursor: pointer;
            font-size: 0.9rem;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }
        .btn-login:hover {
            background: rgba(255, 215, 0, 0.10);
            border-color: var(--accent-gold);
        }

        .btn-signup {
            padding: 10px 20px;
            background: linear-gradient(135deg, var(--accent-gold), #FFC107);
            color: #0A2E1C;
            border: none;
            font-weight: 700;
            border-radius: var(--radius-sm);
            cursor: pointer;
            font-size: 0.9rem;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-btn);
            white-space: nowrap;
        }
        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(255, 215, 0, 0.35);
            background: linear-gradient(135deg, #FFE44D, #FFB300);
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 2rem;
            color: var(--text-primary);
            cursor: pointer;
        }

        /* Article Layout */
        .article-wrapper {
            background: var(--bg-secondary);
            min-height: 70vh;
        }

        .article-container {
            max-width: var(--content-max-width);
            margin: 0 auto;
            padding: 48px 24px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 24px;
            flex-wrap: wrap;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        .article-category {
            display: inline-block;
            background: rgba(255, 215, 0, 0.12);
            color: var(--accent-gold);
            padding: 5px 14px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.85rem;
            text-decoration: none;
            border: 1px solid var(--border-dim);
            transition: all var(--transition-smooth);
        }
        .article-category:hover {
            background: rgba(255, 215, 0, 0.20);
            color: var(--accent-gold);
        }

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

        .article-title {
            font-family: var(--font-heading);
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.3;
            margin-bottom: 24px;
            letter-spacing: -0.02em;
        }

        .article-featured-image {
            width: 100%;
            max-height: 420px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            margin-bottom: 32px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-dim);
        }

        .article-content {
            font-size: 1.08rem;
            line-height: 1.8;
            color: var(--text-secondary);
        }

        .article-content h2 {
            font-family: var(--font-heading);
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-top: 36px;
            margin-bottom: 16px;
            border-left: 4px solid var(--accent-gold);
            padding-left: 16px;
        }

        .article-content h3 {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: #E8D48B;
            margin-top: 28px;
            margin-bottom: 12px;
        }

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

        .article-content ul, .article-content ol {
            margin-bottom: 20px;
            padding-left: 28px;
        }
        .article-content li {
            margin-bottom: 8px;
        }

        .article-content blockquote {
            background: rgba(255, 215, 0, 0.06);
            border-left: 4px solid var(--accent-gold);
            padding: 20px 24px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 28px 0;
            font-style: italic;
            color: #F0E68C;
        }
        .article-content strong {
            color: #FFFFFF;
            font-weight: 700;
        }

        .article-not-found {
            text-align: center;
            padding: 80px 20px;
        }
        .article-not-found i {
            font-size: 3.5rem;
            color: var(--accent-gold);
            margin-bottom: 20px;
            display: block;
        }
        .article-not-found h2 {
            color: var(--accent-gold);
            margin-bottom: 12px;
        }
        .article-not-found p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .btn-home {
            display: inline-block;
            padding: 12px 28px;
            background: linear-gradient(135deg, var(--accent-gold), #FFC107);
            color: #0A2E1C;
            font-weight: 700;
            border-radius: var(--radius-sm);
            text-decoration: none;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-btn);
        }
        .btn-home:hover {
            color: #0A2E1C;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255, 215, 0, 0.4);
        }

        /* Related Section */
        .related-section {
            background: var(--bg-primary);
            padding: 64px 0;
            border-top: 1px solid var(--border-dim);
        }

        .section-subtitle {
            font-family: var(--font-heading);
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 36px;
            text-align: center;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }

        .related-card {
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
            text-decoration: none;
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.4);
            border-color: var(--border-gold);
        }

        .related-card-image {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .related-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-card-category {
            font-size: 0.8rem;
            color: var(--accent-gold);
            font-weight: 600;
            margin-bottom: 8px;
            text-transform: uppercase;
            letter-spacing: 0.03em;
        }

        .related-card-title {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
            flex: 1;
        }

        .related-card-date {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        /* Footer */
        .footer-platinum {
            background: #061E13;
            padding: 48px 0 24px;
            border-top: 1px solid var(--border-dim);
            font-size: 0.95rem;
            color: var(--text-secondary);
        }

        .footer-grid {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            flex-wrap: wrap;
            gap: 30px;
            margin-bottom: 7px;
        }
        .footer-grid a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color var(--transition-smooth);
        }
        .footer-grid a:hover { color: var(--accent-gold); }

        /* FAB */
        .floating-fab {
            position: fixed;
            left: 24px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            background: radial-gradient(circle at 30% 30%, #3A2819, #1C0F05);
            border: 2px solid var(--accent-gold);
            border-radius: 50%;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            opacity: 0.75;
            transition: all 0.3s ease;
            animation: floatFab 3s ease-in-out infinite;
        }
        .floating-fab i {
            color: var(--accent-gold);
            font-size: 1.6rem;
        }
        .floating-fab:hover {
            opacity: 1;
            transform: scale(1.12);
            box-shadow: 0 6px 28px rgba(255, 215, 0, 0.5);
            border-color: #FFE44D;
        }

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

        /* 18+ Badge */
        .badge-18 {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(211, 47, 47, 0.2);
            border: 1px solid var(--accent-red);
            color: #EF5350;
            padding: 4px 12px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.8rem;
            margin-bottom: 16px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-links { gap: 2px; }
            .nav-links a { padding: 8px 12px; font-size: 0.9rem; }
            .article-title { font-size: 1.9rem; }
        }

        @media (max-width: 768px) {
            .nav-container { flex-wrap: wrap; }
            .mobile-toggle { display: block; }
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                background: var(--bg-secondary);
                border-radius: var(--radius-md);
                padding: 12px;
                margin-top: 12px;
                border: 1px solid var(--border-dim);
            }
            .nav-links.open { display: flex; }
            .nav-cta-group { margin-left: auto; }
            .article-title { font-size: 1.7rem; }
            .article-container { padding: 32px 16px; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { flex-direction: column; }
            .floating-fab { left: 16px; bottom: 80px; width: 48px; height: 48px; }
        }

        @media (max-width: 520px) {
            .logo { font-size: 1.1rem; }
            .btn-login, .btn-signup { padding: 8px 14px; font-size: 0.8rem; }
            .article-title { font-size: 1.4rem; }
            .article-content { font-size: 1rem; }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #121212;
            --bg-secondary: #1C1C1E;
            --accent-gold: #C5A059;
            --accent-amber: #FFBF00;
            --text-primary: #F5F5F7;
            --text-muted: #D4AC0D;
            --text-dim: #A6A6A6;
            --border-dim: #2C2C2E;
            --card-bg: #1A1A1C;
            --shadow-md: 0 4px 15px rgba(0,0,0,0.4);
            --radius-lg: 12px;
            --radius-md: 8px;
            --font-heading: 'Segoe UI', 'Roboto', system-ui, -apple-system, sans-serif;
            --font-body: 'Segoe UI', 'Roboto', system-ui, -apple-system, sans-serif;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            background-color: var(--bg-primary);
            color: var(--text-primary);
            font-family: var(--font-body);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        .container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
        .text-gold { color: var(--accent-gold); }
        .bg-secondary { background-color: var(--bg-secondary); }

        /* Header & Nav */
        .header-platinum {
            background-color: rgba(18,18,18,0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-dim);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 0.85rem 0;
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .logo {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--text-muted);
            text-decoration: none;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .logo i { font-size: 1.6rem; color: var(--accent-gold); }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 1.8rem;
            align-items: center;
        }
        .nav-links a {
            color: var(--text-dim);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.2s;
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
        }
        .nav-links a:hover, .nav-links a.active { color: var(--accent-gold); border-bottom-color: var(--accent-gold); }
        .header-actions { display: flex; gap: 0.8rem; align-items: center; }
        .btn-outline-gold {
            background: transparent;
            border: 1.5px solid var(--accent-gold);
            color: var(--accent-gold);
            padding: 0.5rem 1.2rem;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.85rem;
            text-decoration: none;
            transition: all 0.25s;
        }
        .btn-solid-gold {
            background: var(--accent-gold);
            border: 1.5px solid var(--accent-gold);
            color: #121212;
            padding: 0.5rem 1.4rem;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.85rem;
            text-decoration: none;
            transition: all 0.25s;
            box-shadow: 0 4px 12px rgba(197,160,89,0.3);
        }
        .btn-outline-gold:hover { background: rgba(197,160,89,0.1); }
        .btn-solid-gold:hover { background: #B8943F; border-color: #B8943F; }

        /* Hero */
        .hero-category {
            padding: 3.5rem 0 3rem;
            background: radial-gradient(circle at 20% 30%, #1E1E22 0%, #0F0F12 80%);
            border-bottom: 1px solid var(--border-dim);
        }
        .hero-category h1 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2.5rem;
            color: var(--text-muted);
            margin-bottom: 0.6rem;
        }
        .hero-category .sub {
            color: var(--text-dim);
            font-size: 1.1rem;
            max-width: 700px;
        }

        /* Section */
        .section { padding: 3.2rem 0; }
        .section-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--text-muted);
            margin-bottom: 1.5rem;
            text-align: left;
        }
        .card-dark {
            background: var(--card-bg);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            padding: 1.8rem;
            margin-bottom: 1.5rem;
            transition: border-color 0.2s;
        }
        .card-dark:hover { border-color: var(--accent-gold); }
        .card-dark h3 { color: var(--accent-amber); font-size: 1.2rem; margin-bottom: 0.5rem; }
        .flow-step {
            display: flex;
            gap: 1.2rem;
            align-items: flex-start;
            margin-bottom: 1.5rem;
        }
        .step-num {
            background: var(--accent-gold);
            color: #121212;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            flex-shrink: 0;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-dim);
            padding: 1rem 0;
        }
        .faq-item h4 { color: var(--accent-amber); cursor: pointer; font-weight: 600; }
        .img-frame {
            border-radius: var(--radius-md);
            border: 1px solid var(--border-dim);
            overflow: hidden;
            margin: 1.8rem 0;
        }
        .img-frame img { width: 100%; height: auto; display: block; }

        /* Footer */
        .footer-platinum {
            background: #0C0C0E;
            border-top: 1px solid var(--border-dim);
            padding: 2.5rem 0 1.8rem;
            color: var(--text-dim);
        }
        .footer-grid {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 2rem;
        }

        /* Floating */
        .fab-left {
            position: fixed;
            left: 20px;
            bottom: 24px;
            z-index: 1000;
            background: #121212;
            border: 2px solid var(--accent-gold);
            border-radius: 50%;
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.5rem;
            box-shadow: 0 4px 20px rgba(197,160,89,0.3);
            transition: all 0.3s;
            text-decoration: none;
        }
        .fab-left:hover { transform: scale(1.1); background: #1A1A1C; }

        @media (max-width: 768px) {
            .nav-links { gap: 1rem; }
            .hero-category h1 { font-size: 1.8rem; }
            .header-actions .btn-outline-gold { padding: 0.4rem 1rem; font-size: 0.8rem; }
        }

/* roulang page: category2 */
:root {
            --primary-bg: #1A1A1A;
            --secondary-bg: #121212;
            --card-bg: #1E1E1E;
            --accent-gold: #F0E68C;
            --accent-platinum: #E5E8E8;
            --text-white: #FFFFFF;
            --text-platinum: #D5D8DC;
            --text-muted: #9BA1A6;
            --border-dim: #333333;
            --border-accent: #C5A059;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-card: 0 4px 20px rgba(0,0,0,0.6);
            --shadow-gold: 0 4px 15px rgba(240,230,140,0.15);
            --transition-base: all 0.25s ease;
            --font-body: 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
        }

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

        body {
            font-family: var(--font-body);
            background-color: var(--secondary-bg);
            color: var(--text-white);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        /* Header / Navigation */
        .header-platinum {
            background-color: rgba(18,18,18,0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-dim);
            position: sticky;
            top: 0;
            z-index: 50;
            padding: 0.75rem 0;
        }

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

        .nav-logo {
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            color: var(--accent-platinum);
            text-decoration: none;
            white-space: nowrap;
            padding: 0.25rem 0;
        }

        .nav-logo i {
            color: var(--accent-gold);
            margin-right: 0.4rem;
            font-size: 1.2rem;
        }

        .nav-links {
            display: flex;
            gap: 1.5rem;
            align-items: center;
            list-style: none;
            margin: 0;
        }

        .nav-links a {
            color: var(--text-platinum);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.4rem 0;
            transition: var(--transition-base);
            border-bottom: 2px solid transparent;
            white-space: nowrap;
        }

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

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

        .btn-login {
            background: transparent;
            border: 1px solid var(--text-platinum);
            color: var(--text-platinum);
            padding: 0.5rem 1.4rem;
            border-radius: var(--radius-sm);
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition-base);
            font-size: 0.9rem;
        }

        .btn-login:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(240,230,140,0.05);
        }

        .btn-signup {
            background: linear-gradient(135deg, #E5E8E8 0%, #C5A059 100%);
            border: none;
            color: #121212;
            font-weight: 700;
            padding: 0.55rem 1.6rem;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition-base);
            font-size: 0.9rem;
        }

        .btn-signup:hover {
            box-shadow: 0 0 18px rgba(197,160,89,0.5);
            transform: translateY(-1px);
        }

        /* Hero Flash Sale Section */
        .hero-flash {
            background: linear-gradient(135deg, #1A1A1A 0%, #0B0B0B 100%);
            border-bottom: 1px solid var(--border-dim);
            padding: 2.5rem 0;
            text-align: center;
        }

        .flash-timer {
            display: inline-flex;
            align-items: center;
            gap: 1rem;
            background: #2D1F1F;
            border: 1px solid var(--border-accent);
            color: var(--accent-gold);
            padding: 0.8rem 2rem;
            border-radius: 50px;
            font-weight: 700;
            margin-bottom: 2rem;
            font-size: 1.1rem;
            letter-spacing: 0.05em;
        }

        .flash-timer i {
            animation: pulse 1.5s infinite;
        }

        @keyframes pulse {
            0% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.6; transform: scale(1.1); }
            100% { opacity: 1; transform: scale(1); }
        }

        .hero-package {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            align-items: center;
            justify-content: center;
            background: var(--card-bg);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            padding: 2rem;
            max-width: 800px;
            margin: 0 auto;
            box-shadow: var(--shadow-card);
        }

        .package-image {
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: url('/assets/images/coverpic/cover-3.jpg') center/cover no-repeat;
            border: 3px solid var(--border-accent);
            box-shadow: var(--shadow-gold);
        }

        .package-detail {
            text-align: left;
            flex: 1;
            min-width: 240px;
        }

        .package-detail h2 {
            color: var(--accent-gold);
            font-size: 1.6rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .package-price {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-white);
            margin: 0.75rem 0;
        }

        .old-price {
            text-decoration: line-through;
            color: var(--text-muted);
            font-size: 1rem;
            margin-left: 0.5rem;
        }

        .btn-grab {
            background: var(--accent-gold);
            color: #121212;
            font-weight: 700;
            padding: 0.8rem 2.8rem;
            border-radius: 50px;
            border: none;
            font-size: 1.1rem;
            cursor: pointer;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            margin-top: 0.5rem;
        }

        .btn-grab:hover {
            background: #FFFFFF;
            box-shadow: 0 4px 20px rgba(240,230,140,0.4);
            transform: scale(1.02);
        }

        /* Section Layout */
        .section {
            padding: 3rem 0;
        }

        .section-title {
            font-size: 1.8rem;
            font-weight: 600;
            color: var(--accent-platinum);
            margin-bottom: 1.5rem;
            border-left: 4px solid var(--border-accent);
            padding-left: 1rem;
        }

        .section-desc {
            color: var(--text-muted);
            font-size: 1.05rem;
            margin-bottom: 2rem;
            max-width: 700px;
        }

        /* Process Steps */
        .steps-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            counter-reset: step;
        }

        .step-item {
            background: var(--card-bg);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            flex: 1 1 200px;
            position: relative;
            transition: var(--transition-base);
        }

        .step-item:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-gold);
        }

        .step-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: rgba(197,160,89,0.3);
            position: absolute;
            top: 10px;
            right: 15px;
        }

        .step-item h3 {
            font-size: 1.25rem;
            color: var(--accent-gold);
            margin-bottom: 0.5rem;
        }

        /* Rules List */
        .rules-list {
            list-style: none;
            display: grid;
            gap: 1.2rem;
        }

        .rule-card {
            background: var(--card-bg);
            padding: 1.2rem 1.5rem;
            border-radius: var(--radius-sm);
            border-left: 4px solid var(--border-accent);
            transition: var(--transition-base);
        }

        .rule-card:hover {
            background: #252525;
        }

        /* FAQ */
        .faq-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
        }

        .faq-item {
            flex: 1 1 350px;
            background: var(--card-bg);
            padding: 1.2rem;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-dim);
        }

        .faq-item h3 {
            font-size: 1.1rem;
            color: var(--accent-gold);
            margin-bottom: 0.4rem;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(145deg, #1C1C1E 0%, #121212 100%);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            text-align: center;
        }

        .btn-premium {
            background: var(--accent-gold);
            color: #121212;
            font-weight: 700;
            padding: 1rem 3rem;
            border-radius: 50px;
            border: none;
            font-size: 1.2rem;
            cursor: pointer;
            transition: var(--transition-base);
        }

        .btn-premium:hover {
            background: white;
            box-shadow: 0 0 25px rgba(240,230,140,0.6);
        }

        /* Footer */
        .footer-platinum {
            background: #0B0B0B;
            border-top: 1px solid var(--border-dim);
            padding: 2rem 0;
            color: var(--text-muted);
        }

        .footer-grid {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 2rem;
        }

        /* Mobile Responsive */
        @media (max-width: 768px) {
            .nav-container {
                flex-direction: column;
                align-items: flex-start;
            }
            .nav-links {
                flex-wrap: wrap;
                gap: 0.8rem;
                margin-top: 0.5rem;
            }
            .nav-actions {
                margin-left: 0;
                margin-top: 0.5rem;
            }
            .hero-package {
                flex-direction: column;
                text-align: center;
            }
            .package-detail {
                text-align: center;
            }
        }