/* roulang page: index */
:root {
            --primary: #0B3B2D;
            --primary-light: #0F5A43;
            --primary-dark: #061F17;
            --accent: #F59E0B;
            --accent-glow: #FCD34D;
            --accent-secondary: #10B981;
            --bg-deep: #031A12;
            --bg-card: #062E20;
            --bg-surface: #083D2A;
            --text-primary: #F0FDF4;
            --text-secondary: #A7F3D0;
            --text-muted: #6B9E85;
            --border-subtle: rgba(16, 185, 129, 0.2);
            --border-accent: rgba(245, 158, 11, 0.35);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-accent: 0 6px 25px rgba(245, 158, 11, 0.25);
            --radius-lg: 1.5rem;
            --radius-md: 1rem;
            --radius-sm: 0.75rem;
            --radius-xs: 0.5rem;
            --transition-smooth: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        .container {
            width: 100%;
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 640px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 50;
            background: rgba(3, 26, 18, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-smooth);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }

        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
        }
        .logo i {
            color: var(--accent);
            font-size: 1.5rem;
        }
        .logo span {
            background: linear-gradient(135deg, var(--accent-glow), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-links {
            display: none;
            align-items: center;
            gap: 2rem;
            list-style: none;
        }

        @media (min-width: 1024px) {
            .nav-links {
                display: flex;
            }
        }

        .nav-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color var(--transition-smooth);
            position: relative;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--accent);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 4px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .btn-login {
            color: var(--accent);
            background: transparent;
            border: 1px solid var(--border-accent);
            padding: 0.5rem 1.25rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-smooth);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
        }
        .btn-login:hover {
            background: rgba(245, 158, 11, 0.1);
            border-color: var(--accent);
        }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent), #D97706);
            color: #031A12;
            border: none;
            padding: 0.5rem 1.5rem;
            border-radius: 2rem;
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-smooth);
            text-decoration: none;
            box-shadow: var(--shadow-accent);
            display: inline-flex;
            align-items: center;
        }
        .btn-signup:hover {
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.45);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: rgba(16, 185, 129, 0.15);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xs);
            color: var(--text-primary);
            font-size: 1.25rem;
            cursor: pointer;
            transition: background var(--transition-smooth);
        }
        .mobile-menu-toggle:hover {
            background: rgba(16, 185, 129, 0.25);
        }
        @media (min-width: 1024px) {
            .mobile-menu-toggle {
                display: none;
            }
        }

        .mobile-nav {
            display: none;
            flex-direction: column;
            background: var(--bg-deep);
            border-top: 1px solid var(--border-subtle);
            padding: 1rem 1.25rem;
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav a {
            color: var(--text-secondary);
            text-decoration: none;
            padding: 0.75rem 0;
            font-weight: 500;
            border-bottom: 1px solid rgba(16, 185, 129, 0.1);
            transition: color var(--transition-smooth);
        }
        .mobile-nav a:hover,
        .mobile-nav a.active {
            color: var(--accent);
        }

        /* Hero */
        .hero-section {
            padding-top: 120px;
            padding-bottom: 60px;
            background: radial-gradient(ellipse at 50% 0%, rgba(15, 90, 67, 0.25) 0%, transparent 60%),
                        url('/assets/images/backpic/back-1.jpg') center center / cover no-repeat;
            background-blend-mode: overlay;
            position: relative;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(3,26,18,0.7) 0%, rgba(3,26,18,0.9) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            gap: 2rem;
            align-items: center;
        }
        @media (min-width: 768px) {
            .hero-content {
                grid-template-columns: 1fr 1fr;
            }
            .hero-section {
                padding-top: 140px;
                padding-bottom: 80px;
            }
        }
        .hero-text h1 {
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.15;
            margin-bottom: 1rem;
            color: #FFFFFF;
        }
        .hero-text h1 span {
            background: linear-gradient(135deg, var(--accent-glow), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        @media (min-width: 768px) {
            .hero-text h1 {
                font-size: 3rem;
            }
        }
        .hero-text p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            margin-bottom: 1.5rem;
            line-height: 1.65;
            max-width: 540px;
        }
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent), #D97706);
            color: #031A12;
            padding: 0.8rem 2rem;
            border-radius: 3rem;
            font-weight: 700;
            font-size: 1rem;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            box-shadow: var(--shadow-accent);
            transition: all var(--transition-smooth);
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover {
            box-shadow: 0 12px 35px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--accent);
            color: var(--accent);
            padding: 0.8rem 2rem;
            border-radius: 3rem;
            font-weight: 600;
            font-size: 1rem;
            text-decoration: none;
            transition: all var(--transition-smooth);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-outline:hover {
            background: rgba(245,158,11,0.1);
        }

        .hero-visual {
            background: rgba(8, 61, 42, 0.55);
            backdrop-filter: blur(16px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 1.25rem;
            box-shadow: var(--shadow-card);
        }
        .countdown-row {
            display: flex;
            gap: 0.75rem;
            justify-content: center;
        }
        .countdown-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 0.75rem 0.5rem;
            text-align: center;
            min-width: 65px;
            border: 1px solid var(--border-accent);
        }
        .countdown-num {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--accent);
        }
        .countdown-label {
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--text-muted);
        }

        /* Sections */
        .section {
            padding: 60px 0;
        }
        @media (min-width: 768px) {
            .section {
                padding: 80px 0;
            }
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent);
            background: rgba(245,158,11,0.1);
            padding: 0.35rem 1rem;
            border-radius: 3rem;
            margin-bottom: 0.75rem;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 2.3rem;
            }
        }
        .section-desc {
            color: var(--text-secondary);
            font-size: 1rem;
            max-width: 700px;
            margin-bottom: 2.5rem;
            line-height: 1.6;
        }

        /* Cards */
        .grid-cards {
            display: grid;
            gap: 1.5rem;
            grid-template-columns: 1fr;
        }
        @media (min-width: 640px) {
            .grid-cards {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .grid-cards {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }
        .feature-card:hover {
            border-color: var(--border-accent);
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(245,158,11,0.15);
        }
        .feature-card .icon {
            width: 52px;
            height: 52px;
            background: rgba(16,185,129,0.15);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent);
            margin-bottom: 1rem;
        }
        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 0.5rem;
        }
        .feature-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.55;
        }

        .highlight-badge {
            position: absolute;
            top: 1rem;
            right: 1rem;
            background: #DC2626;
            color: #fff;
            font-size: 0.7rem;
            font-weight: 800;
            padding: 0.2rem 0.7rem;
            border-radius: 3rem;
            letter-spacing: 0.04em;
        }

        /* Rewards */
        .reward-list {
            list-style: none;
            display: grid;
            gap: 1rem;
            grid-template-columns: 1fr;
        }
        @media (min-width: 640px) {
            .reward-list {
                grid-template-columns: 1fr 1fr;
            }
        }
        .reward-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1.25rem;
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        .reward-icon {
            font-size: 2rem;
            color: var(--accent);
        }

        /* Steps */
        .steps-flow {
            display: grid;
            gap: 1.5rem;
            grid-template-columns: 1fr;
        }
        @media (min-width: 768px) {
            .steps-flow {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        .step-card {
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            border-left: 3px solid var(--accent);
            position: relative;
        }
        .step-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent);
            opacity: 0.3;
            line-height: 1;
        }

        /* Testimonial */
        .testimonial-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            box-shadow: var(--shadow-card);
        }
        .testimonial-text {
            font-style: italic;
            color: var(--text-secondary);
            margin-bottom: 1rem;
        }

        /* CMS Section */
        .cms-grid {
            display: grid;
            gap: 1.5rem;
        }
        .cms-item {
            display: flex;
            gap: 1rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 1rem;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            text-decoration: none;
            color: inherit;
        }
        .cms-item:hover {
            border-color: var(--border-accent);
        }
        .cms-thumb {
            width: 100px;
            height: 70px;
            border-radius: var(--radius-xs);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg-surface);
        }
        .cms-info h4 {
            font-weight: 700;
            color: #FFFFFF;
            font-size: 0.95rem;
            margin-bottom: 0.25rem;
        }
        .cms-info p {
            color: var(--text-muted);
            font-size: 0.8rem;
        }

        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            border-top: 1px solid var(--border-subtle);
            padding: 40px 0 25px;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            gap: 2rem;
            grid-template-columns: 1fr;
        }
        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
            }
        }
        .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            display: block;
            margin-bottom: 0.4rem;
            transition: color var(--transition-smooth);
        }
        .footer-links a:hover {
            color: var(--accent);
        }

        .fab-left {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), #B45309);
            border: 2px solid var(--accent-glow);
            box-shadow: 0 6px 25px rgba(245, 158, 11, 0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #031A12;
            cursor: pointer;
            transition: all var(--transition-smooth);
            animation: fabFloat 3s ease-in-out infinite;
        }
        .fab-left:hover {
            transform: scale(1.1);
            box-shadow: 0 10px 30px rgba(245, 158, 11, 0.55);
        }
        @keyframes fabFloat {
            0%,100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }

/* roulang page: article */
:root {
            --primary: #0B3B2D;
            --primary-light: #0F5A43;
            --primary-dark: #061F17;
            --accent: #F59E0B;
            --accent-glow: #FCD34D;
            --accent-secondary: #10B981;
            --bg-deep: #031A12;
            --bg-card: #062E20;
            --bg-surface: #083D2A;
            --text-primary: #F0FDF4;
            --text-secondary: #A7F3D0;
            --text-muted: #6B9E85;
            --border-subtle: rgba(16, 185, 129, 0.2);
            --border-accent: rgba(245, 158, 11, 0.35);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-accent: 0 6px 25px rgba(245, 158, 11, 0.25);
            --radius-lg: 1.5rem;
            --radius-md: 1rem;
            --radius-sm: 0.75rem;
            --radius-xs: 0.5rem;
            --transition-smooth: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }
        @media (min-width: 768px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        @media (min-width: 1024px) {
            .container {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 50;
            background: rgba(3, 26, 18, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-smooth);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
        }
        .logo i {
            color: var(--accent);
            font-size: 1.5rem;
        }
        .logo span {
            background: linear-gradient(135deg, var(--accent-glow), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-links {
            display: none;
            align-items: center;
            gap: 2rem;
            list-style: none;
        }
        @media (min-width: 1024px) {
            .nav-links {
                display: flex;
            }
        }
        .nav-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color var(--transition-smooth);
            position: relative;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--accent);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 4px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .btn-login {
            color: var(--accent);
            background: transparent;
            border: 1px solid var(--border-accent);
            padding: 0.5rem 1.25rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-smooth);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
        }
        .btn-login:hover {
            background: rgba(245, 158, 11, 0.1);
            border-color: var(--accent);
        }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent), #D97706);
            color: #031A12;
            border: none;
            padding: 0.5rem 1.5rem;
            border-radius: 2rem;
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-smooth);
            text-decoration: none;
            box-shadow: var(--shadow-accent);
            display: inline-flex;
            align-items: center;
        }
        .btn-signup:hover {
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.45);
            transform: translateY(-1px);
        }
        .mobile-menu-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: rgba(16, 185, 129, 0.15);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xs);
            color: var(--text-primary);
            font-size: 1.25rem;
            cursor: pointer;
            transition: background var(--transition-smooth);
        }
        @media (min-width: 1024px) {
            .mobile-menu-toggle {
                display: none;
            }
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: var(--bg-deep);
            border-top: 1px solid var(--border-subtle);
            padding: 1rem 1.25rem;
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav a {
            color: var(--text-secondary);
            text-decoration: none;
            padding: 0.75rem 0;
            font-weight: 500;
            border-bottom: 1px solid rgba(16, 185, 129, 0.1);
        }
        main {
            margin-top: 68px;
            min-height: 60vh;
        }
        .article-hero {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--bg-deep) 100%);
            padding: 3rem 0 2.5rem;
            border-bottom: 1px solid var(--border-subtle);
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0.75rem;
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }
        .category-badge {
            background: rgba(16, 185, 129, 0.2);
            color: var(--accent-secondary);
            padding: 0.25rem 0.85rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.8rem;
            text-transform: uppercase;
        }
        .article-content {
            padding: 2.5rem 0 3rem;
        }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 2rem;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
            color: var(--text-secondary);
            line-height: 1.75;
        }
        @media (max-width: 640px) {
            .article-body {
                padding: 1.25rem;
            }
        }
        .article-body h2 {
            color: var(--accent-glow);
            font-size: 1.5rem;
            font-weight: 700;
            margin-top: 2rem;
            margin-bottom: 0.75rem;
        }
        .article-body h3 {
            color: var(--text-primary);
            font-size: 1.2rem;
            font-weight: 600;
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
        }
        .article-body p {
            margin-bottom: 1rem;
        }
        .article-body ul, .article-body ol {
            margin-bottom: 1rem;
            padding-left: 1.5rem;
        }
        .article-body li {
            margin-bottom: 0.35rem;
        }
        .article-body a {
            color: var(--accent);
            text-decoration: underline;
        }
        .article-body img {
            border-radius: var(--radius-md);
            margin: 1.5rem 0;
        }
        .cta-block {
            background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(16, 185, 129, 0.1));
            border: 1px solid var(--border-accent);
            border-radius: var(--radius-md);
            padding: 2rem;
            text-align: center;
            margin: 2.5rem 0 1rem;
        }
        .cta-block h3 {
            color: var(--accent-glow);
            font-size: 1.3rem;
            margin-bottom: 0.5rem;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, var(--accent), #D97706);
            color: #031A12;
            font-weight: 700;
            padding: 0.75rem 2rem;
            border-radius: 2rem;
            margin-top: 1rem;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-accent);
            text-decoration: none;
        }
        .btn-cta:hover {
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
        }
        .related-section {
            padding: 3rem 0;
            background: var(--primary-dark);
        }
        .related-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
            margin-top: 2rem;
        }
        @media (min-width: 640px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
        }
        .related-card:hover {
            border-color: var(--border-accent);
            transform: translateY(-4px);
            box-shadow: var(--shadow-accent);
        }
        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .related-card-body {
            padding: 1.25rem;
        }
        .related-card-body h4 {
            color: var(--text-primary);
            font-size: 1.05rem;
            margin-bottom: 0.5rem;
        }
        .related-card-body p {
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .site-footer {
            background: var(--primary-dark);
            border-top: 1px solid var(--border-subtle);
            padding: 2.5rem 0 1.5rem;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        .footer-links a {
            display: block;
            color: var(--text-muted);
            margin-bottom: 0.4rem;
            transition: color var(--transition-smooth);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .not-found {
            text-align: center;
            padding: 4rem 2rem;
        }
        .not-found i {
            font-size: 3rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
        }

/* roulang page: category1 */
:root {
            --primary: #0B3B2D;
            --primary-light: #0F5A43;
            --primary-dark: #061F17;
            --accent: #F59E0B;
            --accent-glow: #FCD34D;
            --accent-secondary: #10B981;
            --bg-deep: #031A12;
            --bg-card: #062E20;
            --bg-surface: #083D2A;
            --text-primary: #F0FDF4;
            --text-secondary: #A7F3D0;
            --text-muted: #6B9E85;
            --border-subtle: rgba(16, 185, 129, 0.2);
            --border-accent: rgba(245, 158, 11, 0.35);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-accent: 0 6px 25px rgba(245, 158, 11, 0.25);
            --radius-lg: 1.5rem;
            --radius-md: 1rem;
            --radius-sm: 0.75rem;
            --radius-xs: 0.5rem;
            --transition-smooth: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 50;
            background: rgba(3, 26, 18, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-smooth);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }

        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
        }

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

        .logo span {
            background: linear-gradient(135deg, var(--accent-glow), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-links {
            display: none;
            align-items: center;
            gap: 2rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        @media (min-width: 768px) {
            .nav-links {
                display: flex;
            }
        }

        .nav-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color var(--transition-smooth);
            position: relative;
        }

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

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 4px;
        }

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

        .btn-login {
            color: var(--accent);
            background: transparent;
            border: 1px solid var(--border-accent);
            padding: 0.5rem 1.25rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-smooth);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
        }

        .btn-login:hover {
            background: rgba(245, 158, 11, 0.1);
            border-color: var(--accent);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent), #D97706);
            color: #031A12;
            border: none;
            padding: 0.5rem 1.5rem;
            border-radius: 2rem;
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-smooth);
            text-decoration: none;
            box-shadow: var(--shadow-accent);
            display: inline-flex;
            align-items: center;
        }

        .btn-signup:hover {
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.45);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: rgba(16, 185, 129, 0.15);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xs);
            color: var(--text-primary);
            font-size: 1.25rem;
            cursor: pointer;
            transition: background var(--transition-smooth);
        }

        .mobile-menu-toggle:hover {
            background: rgba(16, 185, 129, 0.25);
        }

        @media (min-width: 768px) {
            .mobile-menu-toggle {
                display: none;
            }
        }

        .mobile-nav {
            display: none;
            flex-direction: column;
            background: var(--bg-deep);
            border-top: 1px solid var(--border-subtle);
            padding: 1rem 1.25rem;
        }

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

        .mobile-nav a {
            color: var(--text-secondary);
            text-decoration: none;
            padding: 0.75rem 0;
            font-weight: 500;
            border-bottom: 1px solid rgba(16, 185, 129, 0.15);
            transition: color var(--transition-smooth);
        }

        .mobile-nav a:hover,
        .mobile-nav a.active-mobile {
            color: var(--accent);
        }

        /* Page Header / Hero Mini */
        .page-hero {
            padding-top: 7rem;
            padding-bottom: 2.5rem;
            background: linear-gradient(180deg, rgba(11, 59, 45, 0.3) 0%, var(--bg-deep) 100%);
            text-align: left;
            border-bottom: 1px solid var(--border-subtle);
        }

        .page-hero h1 {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.025em;
            color: var(--text-primary);
            margin: 0 0 1rem;
            line-height: 1.2;
        }

        .page-hero p {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 800px;
            line-height: 1.65;
        }

        @media (min-width: 640px) {
            .page-hero h1 {
                font-size: 2.8rem;
            }
        }

        @media (min-width: 1024px) {
            .page-hero h1 {
                font-size: 3.2rem;
            }
        }

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

        .section-header {
            margin-bottom: 2rem;
        }

        .section-header h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 0.5rem;
        }

        .section-header p {
            color: var(--text-muted);
            margin: 0;
        }

        /* Tip Cards */
        .tip-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }

        @media (min-width: 640px) {
            .tip-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .tip-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .tip-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1.75rem;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .tip-card:hover {
            border-color: var(--border-accent);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }

        .tip-card .tip-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            background: rgba(245, 158, 11, 0.1);
            border-radius: var(--radius-sm);
            margin-bottom: 1rem;
            color: var(--accent);
            font-size: 1.5rem;
        }

        .tip-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin: 0 0 0.5rem;
            color: var(--text-primary);
        }

        .tip-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        /* Info Cards */
        .info-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
            margin-top: 1.5rem;
        }

        @media (min-width: 768px) {
            .info-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        .info-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 2rem;
            text-align: left;
        }

        .info-card .number {
            font-size: 2.5rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--accent-glow), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: block;
            margin-bottom: 0.5rem;
        }

        .info-card h4 {
            color: var(--text-primary);
            margin: 0 0 0.5rem;
            font-weight: 600;
        }

        .info-card p {
            color: var(--text-muted);
            margin: 0;
        }

        /* List Styles */
        .custom-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
        }

        @media (min-width: 768px) {
            .custom-list {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        .custom-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .custom-list li i {
            color: var(--accent-secondary);
            font-size: 1.1rem;
            margin-top: 0.15rem;
            flex-shrink: 0;
        }

        /* Content Thumb List */
        .content-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1.5rem;
        }

        .content-item {
            display: flex;
            align-items: center;
            gap: 1.25rem;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            padding: 1rem 1.5rem;
            transition: all var(--transition-smooth);
            text-decoration: none;
        }

        .content-item:hover {
            border-color: var(--accent);
            background: var(--bg-surface);
        }

        .content-item img {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-xs);
            object-fit: cover;
            flex-shrink: 0;
        }

        .content-item .content-meta {
            flex: 1;
            min-width: 0;
        }

        .content-item .content-meta h5 {
            margin: 0 0 0.25rem;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 0.95rem;
        }

        .content-item .content-meta p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        /* CTA Bar */
        .cta-banner {
            background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
            border: 1px solid var(--border-accent);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 1.5rem;
            margin-top: 2rem;
        }

        @media (min-width: 768px) {
            .cta-banner {
                flex-direction: row;
                align-items: center;
                justify-content: space-between;
            }
        }

        .cta-banner h3 {
            margin: 0;
            color: var(--text-primary);
            font-size: 1.5rem;
            font-weight: 700;
        }

        .cta-banner p {
            margin: 0.5rem 0 0;
            color: var(--text-secondary);
        }

        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
            padding: 0.75rem 2rem;
            border-radius: 2rem;
            font-weight: 700;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--accent-glow);
            box-shadow: var(--shadow-accent);
        }

        /* FAQ */
        .faq-grid {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1.5rem;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            padding: 1.25rem 1.5rem;
            transition: border-color var(--transition-smooth);
        }

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

        .faq-item h4 {
            margin: 0 0 0.5rem;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1rem;
        }

        .faq-item p {
            margin: 0;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            border-top: 1px solid var(--border-subtle);
            padding: 3rem 0 2rem;
            margin-top: 4rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }

        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
            }
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.35rem;
        }

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

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

        /* FAB */
        .fab {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), #B45309);
            border: 2px solid var(--accent-glow);
            box-shadow: 0 6px 25px rgba(245, 158, 11, 0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-dark);
            font-size: 1.5rem;
            cursor: pointer;
            transition: all var(--transition-smooth);
            opacity: 0.8;
            animation: gentleFloat 3s ease-in-out infinite;
        }

        .fab:hover {
            transform: scale(1.1);
            opacity: 1;
            box-shadow: 0 10px 35px rgba(245, 158, 11, 0.5);
        }

        .fab:active {
            transform: scale(0.95) translateY(4px);
        }

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

        .fab .badge-notify {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: #DC2626;
            border-radius: 50%;
            border: 2px solid var(--bg-deep);
        }

/* roulang page: category2 */
:root {
            --primary: #0B3B2D;
            --primary-light: #0F5A43;
            --primary-dark: #061F17;
            --accent: #F59E0B;
            --accent-glow: #FCD34D;
            --accent-secondary: #10B981;
            --bg-deep: #031A12;
            --bg-card: #062E20;
            --bg-surface: #083D2A;
            --text-primary: #F0FDF4;
            --text-secondary: #A7F3D0;
            --text-muted: #6B9E85;
            --border-subtle: rgba(16, 185, 129, 0.2);
            --border-accent: rgba(245, 158, 11, 0.35);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-accent: 0 6px 25px rgba(245, 158, 11, 0.25);
            --radius-lg: 1.5rem;
            --radius-md: 1rem;
            --radius-sm: 0.75rem;
            --radius-xs: 0.5rem;
            --transition-smooth: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: 68px;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }
        @media (min-width: 768px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        @media (min-width: 1024px) {
            .container {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 50;
            background: rgba(3, 26, 18, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-smooth);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
        }
        .logo i {
            color: var(--accent);
            font-size: 1.5rem;
        }
        .logo span {
            background: linear-gradient(135deg, var(--accent-glow), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-links {
            display: none;
            align-items: center;
            gap: 2rem;
            list-style: none;
        }
        @media (min-width: 1024px) {
            .nav-links {
                display: flex;
            }
        }
        .nav-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color var(--transition-smooth);
            position: relative;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--accent);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 4px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .btn-login {
            color: var(--accent);
            background: transparent;
            border: 1px solid var(--border-accent);
            padding: 0.5rem 1.25rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-smooth);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
        }
        .btn-login:hover {
            background: rgba(245, 158, 11, 0.1);
            border-color: var(--accent);
        }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent), #D97706);
            color: #031A12;
            border: none;
            padding: 0.5rem 1.5rem;
            border-radius: 2rem;
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-smooth);
            text-decoration: none;
            box-shadow: var(--shadow-accent);
            display: inline-flex;
            align-items: center;
        }
        .btn-signup:hover {
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.45);
            transform: translateY(-1px);
        }
        .mobile-menu-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: rgba(16, 185, 129, 0.15);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xs);
            color: var(--text-primary);
            font-size: 1.25rem;
            cursor: pointer;
            transition: background var(--transition-smooth);
        }
        .mobile-menu-toggle:hover {
            background: rgba(16, 185, 129, 0.25);
        }
        @media (min-width: 1024px) {
            .mobile-menu-toggle {
                display: none;
            }
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: var(--bg-deep);
            border-top: 1px solid var(--border-subtle);
            padding: 1rem 1.25rem;
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav a {
            color: var(--text-secondary);
            text-decoration: none;
            padding: 0.75rem 0;
            font-weight: 500;
            border-bottom: 1px solid rgba(16, 185, 129, 0.15);
            transition: color var(--transition-smooth);
        }
        .mobile-nav a:hover,
        .mobile-nav a.active-mobile {
            color: var(--accent);
        }
        @media (min-width: 1024px) {
            .mobile-nav {
                display: none !important;
            }
        }
        .section {
            padding: 3.5rem 0;
        }
        @media (min-width: 768px) {
            .section {
                padding: 5rem 0;
            }
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 2rem;
            position: relative;
            display: inline-block;
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 2.25rem;
            }
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 60%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), transparent);
            border-radius: 4px;
        }
        .card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            transition: all var(--transition-smooth);
        }
        .card:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-accent);
            transform: translateY(-2px);
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent), #D97706);
            color: #031A12;
            border: none;
            padding: 0.75rem 2rem;
            border-radius: 2rem;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-smooth);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            box-shadow: var(--shadow-accent);
        }
        .btn-primary:hover {
            box-shadow: 0 10px 35px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
        }
        .btn-secondary {
            background: transparent;
            border: 2px solid var(--border-subtle);
            color: var(--text-primary);
            padding: 0.75rem 2rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition-smooth);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-secondary:hover {
            border-color: var(--accent);
            color: var(--accent);
        }
        .badge {
            background: rgba(245, 158, 11, 0.15);
            color: var(--accent);
            padding: 0.25rem 0.75rem;
            border-radius: 2rem;
            font-size: 0.8rem;
            font-weight: 600;
            display: inline-block;
        }
        .site-footer {
            background: var(--primary-dark);
            border-top: 2px solid var(--border-accent);
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-grid {
            display: grid;
            gap: 2rem;
            grid-template-columns: 1fr;
        }
        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }
        }
        .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            display: block;
            padding: 0.35rem 0;
            font-size: 0.9rem;
            transition: color var(--transition-smooth);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .hero-category {
            background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-deep) 100%);
            position: relative;
            overflow: hidden;
        }
        .hero-category::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.08), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .step-card {
            background: var(--bg-surface);
            border-left: 3px solid var(--accent);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            padding: 1.25rem 1.5rem;
            transition: all var(--transition-smooth);
        }
        .step-card:hover {
            border-left-color: var(--accent-glow);
            box-shadow: var(--shadow-card);
        }
        .step-number {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent), #D97706);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            color: #031A12;
            flex-shrink: 0;
        }

/* roulang page: category3 */
:root {
            --primary: #0B3B2D;
            --primary-light: #0F5A43;
            --primary-dark: #061F17;
            --accent: #F59E0B;
            --accent-glow: #FCD34D;
            --accent-secondary: #10B981;
            --bg-deep: #031A12;
            --bg-card: #062E20;
            --bg-surface: #083D2A;
            --text-primary: #F0FDF4;
            --text-secondary: #A7F3D0;
            --text-muted: #6B9E85;
            --border-subtle: rgba(16, 185, 129, 0.2);
            --border-accent: rgba(245, 158, 11, 0.35);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-accent: 0 6px 25px rgba(245, 158, 11, 0.25);
            --radius-lg: 1.5rem;
            --radius-md: 1rem;
            --radius-sm: 0.75rem;
            --radius-xs: 0.5rem;
            --transition-smooth: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

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

        a {
            text-decoration: none;
            color: inherit;
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 50;
            background: rgba(3, 26, 18, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-smooth);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }

        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
        }

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

        .logo span {
            background: linear-gradient(135deg, var(--accent-glow), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-links {
            display: none;
            align-items: center;
            gap: 2rem;
            list-style: none;
        }

        @media (min-width: 1024px) {
            .nav-links {
                display: flex;
            }
        }

        .nav-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color var(--transition-smooth);
            position: relative;
        }

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

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 4px;
        }

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

        .btn-login {
            color: var(--accent);
            background: transparent;
            border: 1px solid var(--border-accent);
            padding: 0.5rem 1.25rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-smooth);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
        }

        .btn-login:hover {
            background: rgba(245, 158, 11, 0.1);
            border-color: var(--accent);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent), #D97706);
            color: #031A12;
            border: none;
            padding: 0.5rem 1.5rem;
            border-radius: 2rem;
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-smooth);
            text-decoration: none;
            box-shadow: var(--shadow-accent);
            display: inline-flex;
            align-items: center;
        }

        .btn-signup:hover {
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.45);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: rgba(16, 185, 129, 0.15);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xs);
            color: var(--text-primary);
            font-size: 1.25rem;
            cursor: pointer;
            transition: background var(--transition-smooth);
        }

        .mobile-menu-toggle:hover {
            background: rgba(16, 185, 129, 0.25);
        }

        @media (min-width: 1024px) {
            .mobile-menu-toggle {
                display: none;
            }
        }

        .mobile-nav {
            display: none;
            flex-direction: column;
            background: var(--bg-deep);
            border-top: 1px solid var(--border-subtle);
            padding: 1rem 1.25rem;
        }

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

        .mobile-nav a {
            color: var(--text-secondary);
            text-decoration: none;
            padding: 0.75rem 0;
            font-weight: 500;
            border-bottom: 1px solid rgba(16, 185, 129, 0.15);
            transition: color var(--transition-smooth);
        }

        .mobile-nav a:hover,
        .mobile-nav a.active {
            color: var(--accent);
        }

        /* Main Content Spacing */
        .main-content {
            padding-top: 68px;
        }

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

        @media (min-width: 768px) {
            section {
                padding: 4rem 0;
            }
        }

        @media (min-width: 1024px) {
            section {
                padding: 5rem 0;
            }
        }

        /* Hero Section */
        .hero-section {
            background: linear-gradient(180deg, rgba(3, 26, 18, 0.4) 0%, rgba(6, 46, 32, 0.7) 50%, var(--bg-deep) 100%), url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            text-align: center;
            padding: 5rem 0 4rem;
            position: relative;
        }

        .hero-section h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 1rem;
            line-height: 1.3;
        }

        @media (min-width: 768px) {
            .hero-section h1 {
                font-size: 3rem;
            }
        }

        .hero-section p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 700px;
            margin: 0 auto 2rem;
        }

        /* Flash Sale Bar */
        .flash-sale-bar {
            background: linear-gradient(90deg, #DC2626, #EF4444, #F59E0B);
            color: #fff;
            text-align: center;
            padding: 1rem 1.5rem;
            font-weight: 700;
            font-size: 1.05rem;
            border-radius: var(--radius-md);
            max-width: 900px;
            margin: 0 auto 2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
            box-shadow: 0 8px 24px rgba(220, 38, 38, 0.4);
        }

        .flash-timer {
            background: rgba(0, 0, 0, 0.35);
            padding: 0.3rem 1rem;
            border-radius: 2rem;
            font-size: 0.95rem;
            letter-spacing: 0.05em;
        }

        .flash-timer i {
            margin-right: 0.35rem;
            color: var(--accent-glow);
        }

        /* Promo Cards Grid */
        .promo-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
            margin-top: 2.5rem;
        }

        @media (min-width: 640px) {
            .promo-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .promo-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        .promo-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 2rem;
            position: relative;
            overflow: hidden;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
        }

        .promo-card:hover {
            border-color: var(--border-accent);
            transform: translateY(-6px);
            box-shadow: 0 16px 40px rgba(245, 158, 11, 0.2);
        }

        .promo-badge {
            position: absolute;
            top: 1.25rem;
            right: 1.25rem;
            background: linear-gradient(135deg, #DC2626, #EF4444);
            color: #fff;
            font-weight: 700;
            font-size: 0.8rem;
            padding: 0.3rem 0.85rem;
            border-radius: 2rem;
            letter-spacing: 0.03em;
        }

        .promo-card .promo-icon {
            font-size: 2.5rem;
            color: var(--accent);
            margin-bottom: 1.25rem;
        }

        .promo-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--text-primary);
        }

        .promo-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 1.25rem;
            line-height: 1.6;
        }

        .promo-highlight {
            background: rgba(245, 158, 11, 0.08);
            border: 1px solid var(--border-accent);
            border-radius: var(--radius-sm);
            padding: 0.75rem 1rem;
            margin-bottom: 1.25rem;
            font-weight: 600;
            color: var(--accent);
            font-size: 1rem;
            text-align: center;
        }

        .btn-promo {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, var(--accent), #D97706);
            color: #031A12;
            font-weight: 700;
            padding: 0.7rem 1.5rem;
            border-radius: 2rem;
            transition: all var(--transition-smooth);
            cursor: pointer;
            font-size: 0.95rem;
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3);
            text-decoration: none;
        }

        .btn-promo:hover {
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
        }

        /* Info Panels */
        .info-panel-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }

        @media (min-width: 768px) {
            .info-panel-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        .info-panel {
            background: var(--bg-surface);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 2rem;
            display: flex;
            gap: 1.5rem;
            align-items: flex-start;
        }

        .info-panel-icon {
            font-size: 2.2rem;
            color: var(--accent);
            background: rgba(245, 158, 11, 0.1);
            padding: 1rem;
            border-radius: 50%;
            width: 60px;
            height: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .info-panel h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .info-panel p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* Data Stats */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.25rem;
            text-align: center;
        }

        @media (min-width: 640px) {
            .stats-row {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .stat-item {
            background: var(--bg-surface);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1.75rem 1rem;
        }

        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 0.25rem;
        }

        .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* Steps */
        .steps-vertical {
            max-width: 700px;
            margin: 0 auto;
        }

        .step-item {
            display: flex;
            gap: 1.25rem;
            margin-bottom: 2rem;
            align-items: flex-start;
        }

        .step-number {
            background: linear-gradient(135deg, var(--accent), #D97706);
            color: #031A12;
            font-weight: 800;
            font-size: 1.2rem;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .step-content h4 {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.25rem;
        }

        .step-content p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* Section Title */
        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--text-primary);
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 2.2rem;
            }
        }

        .section-subtitle {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 600px;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            overflow: hidden;
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

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

        .faq-question {
            padding: 1.25rem 1.5rem;
            font-weight: 700;
            font-size: 1.05rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-answer {
            padding: 0 1.5rem 1.25rem;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            transition: transform var(--transition-smooth);
        }

        /* CTA Banner */
        .cta-banner {
            background: linear-gradient(135deg, var(--primary), var(--bg-card));
            border: 1px solid var(--border-accent);
            border-radius: var(--radius-lg);
            padding: 3rem 2rem;
            text-align: center;
            box-shadow: var(--shadow-accent);
        }

        .cta-banner h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
        }

        .cta-banner p {
            color: var(--text-secondary);
            margin-bottom: 1.75rem;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta-large {
            background: linear-gradient(135deg, var(--accent), #D97706);
            color: #031A12;
            font-weight: 800;
            padding: 0.9rem 2.5rem;
            border-radius: 2rem;
            font-size: 1.1rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.4);
            transition: all var(--transition-smooth);
            text-decoration: none;
            cursor: pointer;
            border: none;
        }

        .btn-cta-large:hover {
            box-shadow: 0 12px 36px rgba(245, 158, 11, 0.6);
            transform: translateY(-3px);
        }

        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            border-top: 1px solid var(--border-subtle);
            padding: 3rem 0 2rem;
            margin-top: 3rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }

        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
            }
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

        .footer-links a {
            color: var(--text-muted);
            transition: color var(--transition-smooth);
            font-size: 0.9rem;
        }

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

        /* Helper */
        .text-center {
            text-align: center;
        }

        .mb-1 {
            margin-bottom: 1rem;
        }

        .mb-2 {
            margin-bottom: 2rem;
        }

        .mt-2 {
            margin-top: 2rem;
        }

        .mt-3 {
            margin-top: 3rem;
        }

        /* FAB */
        .fab-left {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            background: linear-gradient(135deg, #F59E0B, #B45309);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #031A12;
            font-size: 1.5rem;
            cursor: pointer;
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.5);
            transition: all var(--transition-smooth);
            border: 2px solid rgba(245, 158, 11, 0.6);
            text-decoration: none;
        }

        .fab-left:hover {
            transform: scale(1.1);
            box-shadow: 0 12px 36px rgba(245, 158, 11, 0.65);
        }

        .fab-badge {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 18px;
            height: 18px;
            background: #DC2626;
            border-radius: 50%;
            border: 2px solid #fff;
            animation: pulse 1.5s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.2);
            }
        }

/* roulang page: category4 */
:root {
            --primary: #0B3B2D;
            --primary-light: #0F5A43;
            --primary-dark: #061F17;
            --accent: #F59E0B;
            --accent-glow: #FCD34D;
            --accent-secondary: #10B981;
            --bg-deep: #031A12;
            --bg-card: #062E20;
            --bg-surface: #083D2A;
            --text-primary: #F0FDF4;
            --text-secondary: #A7F3D0;
            --text-muted: #6B9E85;
            --border-subtle: rgba(16, 185, 129, 0.2);
            --border-accent: rgba(245, 158, 11, 0.35);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-accent: 0 6px 25px rgba(245, 158, 11, 0.25);
            --radius-lg: 1.5rem;
            --radius-md: 1rem;
            --radius-sm: 0.75rem;
            --radius-xs: 0.5rem;
            --transition-smooth: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        .container {
            width: 100%;
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 50;
            background: rgba(3, 26, 18, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-smooth);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }

        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
        }

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

        .logo span {
            background: linear-gradient(135deg, var(--accent-glow), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-links {
            display: none;
            align-items: center;
            gap: 2rem;
            list-style: none;
        }

        @media (min-width: 1024px) {
            .nav-links {
                display: flex;
            }
        }

        .nav-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color var(--transition-smooth);
            position: relative;
        }

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

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 4px;
        }

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

        .btn-login {
            color: var(--accent);
            background: transparent;
            border: 1px solid var(--border-accent);
            padding: 0.5rem 1.25rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-smooth);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
        }

        .btn-login:hover {
            background: rgba(245, 158, 11, 0.1);
            border-color: var(--accent);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent), #D97706);
            color: #031A12;
            border: none;
            padding: 0.5rem 1.5rem;
            border-radius: 2rem;
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-smooth);
            text-decoration: none;
            box-shadow: var(--shadow-accent);
            display: inline-flex;
            align-items: center;
        }

        .btn-signup:hover {
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.45);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: rgba(16, 185, 129, 0.15);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xs);
            color: var(--text-primary);
            font-size: 1.25rem;
            cursor: pointer;
            transition: background var(--transition-smooth);
        }

        .mobile-menu-toggle:hover {
            background: rgba(16, 185, 129, 0.25);
        }

        @media (min-width: 1024px) {
            .mobile-menu-toggle {
                display: none;
            }
        }

        .mobile-nav {
            display: none;
            flex-direction: column;
            background: var(--bg-deep);
            border-top: 1px solid var(--border-subtle);
            padding: 1rem 1.25rem;
        }

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

        .mobile-nav a {
            color: var(--text-secondary);
            text-decoration: none;
            padding: 0.75rem 0;
            font-weight: 500;
            border-bottom: 1px solid rgba(16, 185, 129, 0.1);
            transition: color var(--transition-smooth);
        }

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

        /* Hero Section */
        .hero-section {
            padding-top: 120px;
            padding-bottom: 80px;
            background: linear-gradient(180deg, rgba(3, 26, 18, 0.95) 0%, rgba(6, 46, 32, 0.8) 50%, rgba(3, 26, 18, 0.95) 100%);
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-3.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            z-index: 0;
        }

        .hero-content {
            position: relative;
            z-index: 1;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(245, 158, 11, 0.15);
            border: 1px solid var(--border-accent);
            color: var(--accent);
            padding: 0.375rem 1rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
        }

        .trust-checklist {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 2rem;
            list-style: none;
        }

        .trust-checklist li {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.9rem;
        }

        .trust-checklist li i {
            color: var(--accent-secondary);
            font-size: 1rem;
        }

        /* Cards */
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
        }

        .feature-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-accent);
            transform: translateY(-4px);
        }

        /* Badge */
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.75rem;
            border-radius: 2rem;
            font-size: 0.8rem;
            font-weight: 600;
            white-space: nowrap;
        }

        .badge-hot {
            background: rgba(239, 68, 68, 0.15);
            color: #F87171;
            border: 1px solid rgba(239, 68, 68, 0.3);
        }

        .badge-vip {
            background: rgba(245, 158, 11, 0.15);
            color: var(--accent);
            border: 1px solid var(--border-accent);
        }

        .badge-new {
            background: rgba(16, 185, 129, 0.15);
            color: var(--accent-secondary);
            border: 1px solid rgba(16, 185, 129, 0.3);
        }

        /* Posts List */
        .posts-list {
            list-style: none;
        }

        .posts-list li {
            border-bottom: 1px solid var(--border-subtle);
            padding: 1rem 0;
            transition: background var(--transition-smooth);
        }

        .posts-list li:last-child {
            border-bottom: none;
        }

        .posts-list a {
            text-decoration: none;
            color: var(--text-primary);
            font-weight: 600;
            display: block;
            transition: color var(--transition-smooth);
        }

        .posts-list a:hover {
            color: var(--accent);
        }

        .posts-list .post-meta {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 0.25rem;
        }

        /* FAQ */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            overflow: hidden;
            transition: all var(--transition-smooth);
        }

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

        .faq-question {
            padding: 1.25rem 1.5rem;
            font-weight: 700;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-primary);
            font-size: 1.05rem;
        }

        .faq-question i {
            transition: transform var(--transition-smooth);
            color: var(--accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            padding: 0 1.5rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 1.25rem;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        /* CTA Buttons */
        .btn-primary {
            background: linear-gradient(135deg, var(--accent), #D97706);
            color: #031A12;
            padding: 0.75rem 2rem;
            border-radius: 2rem;
            font-weight: 700;
            font-size: 1rem;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-accent);
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            box-shadow: 0 10px 35px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid var(--accent-secondary);
            color: var(--accent-secondary);
            padding: 0.75rem 2rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 1rem;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

        .btn-outline:hover {
            background: rgba(16, 185, 129, 0.1);
            border-color: var(--accent);
            color: var(--accent);
        }

        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            border-top: 1px solid var(--border-subtle);
            padding: 4rem 0 2rem;
            margin-top: 4rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }

        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

        .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.9rem;
            transition: color var(--transition-smooth);
        }

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

        /* FAB */
        .fab-floating {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            z-index: 60;
            width: 56px;
            height: 56px;
            background: radial-gradient(circle at 30% 30%, var(--accent-glow), var(--accent));
            border: 2px solid rgba(245, 158, 11, 0.6);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.4);
            cursor: pointer;
            transition: all var(--transition-smooth);
            animation: float 3s ease-in-out infinite;
        }

        .fab-floating:hover {
            transform: scale(1.1);
            box-shadow: 0 12px 36px rgba(245, 158, 11, 0.55);
        }

        .fab-floating:active {
            transform: scale(0.95);
        }

        .fab-floating i {
            color: #031A12;
            font-size: 1.5rem;
        }

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

        /* Responsive Typography */
        @media (max-width: 768px) {
            .hero-section {
                padding-top: 100px;
                padding-bottom: 60px;
            }
            h1 {
                font-size: 1.8rem !important;
            }
            h2 {
                font-size: 1.4rem !important;
            }
        }

        .text-gradient-gold {
            background: linear-gradient(135deg, var(--accent-glow), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }