/* roulang page: index */
:root {
            --bg-deep: #070B18;
            --bg-primary: #0B1220;
            --bg-secondary: #101A2E;
            --bg-tertiary: #16233F;
            --accent-gold: #FFD700;
            --accent-gold-soft: #E6C04C;
            --accent-cyan: #00E5FF;
            --accent-emerald: #2EC4B6;
            --accent-red: #FF4757;
            --text-primary: #FFFFFF;
            --text-secondary: #B8C4D8;
            --text-muted: #7C88A0;
            --border-glass: rgba(255, 255, 255, 0.08);
            --glass-bg: rgba(255, 255, 255, 0.04);
            --glass-bg-hover: rgba(255, 255, 255, 0.07);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-soft: 0 8px 24px rgba(0, 0, 0, 0.25);
            --shadow-glow-gold: 0 0 24px rgba(255, 215, 0, 0.25);
            --shadow-glow-cyan: 0 0 24px rgba(0, 229, 255, 0.2);
            --shadow-glow-emerald: 0 0 24px rgba(46, 196, 182, 0.2);
            --space-1: 0.25rem;
            --space-2: 0.5rem;
            --space-3: 0.75rem;
            --space-4: 1rem;
            --space-5: 1.5rem;
            --space-6: 2rem;
            --space-7: 3rem;
            --space-8: 4rem;
            --space-9: 5rem;
            --font-main: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --font-size-base: 16px;
            --line-height-body: 1.65;
            --container-max: 1200px;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-main);
            font-size: var(--font-size-base);
            line-height: var(--line-height-body);
            color: var(--text-primary);
            background-color: var(--bg-deep);
            background-image: linear-gradient(180deg, #070B18 0%, #0B1220 35%, #101A2E 65%, #070B18 100%);
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, background-color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
        }

        a:hover, a:focus {
            text-decoration: none;
            outline: none;
        }

        a:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        button:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            border-radius: 6px;
        }

        h1, h2, h3, h4, h5, h6 {
            margin: 0 0 0.5em 0;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
        }

        p {
            margin: 0 0 1rem 0;
            color: var(--text-secondary);
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        /* ===== Header/Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(7, 11, 24, 0.82);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-glass);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            min-height: 68px;
            flex-wrap: nowrap;
        }

        .header-logo {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: -0.01em;
        }

        .header-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent-gold) 0%, #B8860B 100%);
            color: #0B1220;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .header-logo .logo-text {
            font-size: 1.05rem;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text-primary);
        }

        .header-logo .logo-text span {
            color: var(--accent-gold);
        }

        .main-nav {
            display: none;
            align-items: center;
            gap: 0.25rem;
            flex: 1;
            justify-content: center;
            padding: 0 1rem;
        }

        .main-nav a.nav-link {
            display: inline-flex;
            align-items: center;
            padding: 0.55rem 1rem;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: 8px;
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .main-nav a.nav-link:hover {
            color: var(--text-primary);
            background: var(--glass-bg);
        }

        .main-nav a.nav-link.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
            border-color: rgba(255, 215, 0, 0.2);
        }

        .header-search {
            display: none;
            align-items: center;
            gap: 0.4rem;
            background: var(--glass-bg);
            border: 1px solid var(--border-glass);
            border-radius: 8px;
            padding: 0.35rem 0.6rem;
            width: 180px;
        }

        .header-search input {
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 0.85rem;
            width: 100%;
            outline: none;
            min-width: 0;
        }

        .header-search input::placeholder {
            color: var(--text-muted);
        }

        .header-search i {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
        }

        .btn-login-header {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 0.9rem;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: 8px;
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .btn-login-header:hover {
            color: var(--text-primary);
            background: var(--glass-bg);
        }

        .btn-signup-header {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 1.1rem;
            font-size: 0.9rem;
            font-weight: 700;
            color: #0B1220;
            background: linear-gradient(135deg, var(--accent-gold) 0%, #FFC107 100%);
            border-radius: 8px;
            white-space: nowrap;
            box-shadow: 0 0 16px rgba(255, 215, 0, 0.3);
        }

        .btn-signup-header:hover {
            box-shadow: 0 0 28px rgba(255, 215, 0, 0.45);
            transform: translateY(-1px);
        }

        .menu-toggle {
            display: inline-flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: var(--glass-bg);
            border: 1px solid var(--border-glass);
            flex-shrink: 0;
        }

        .menu-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .menu-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .menu-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: rgba(7, 11, 24, 0.97);
            backdrop-filter: blur(24px);
            border-bottom: 1px solid var(--border-glass);
            padding: 1rem 1.5rem 1.5rem;
            z-index: 999;
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-menu a.nav-link {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.8rem 0.5rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-secondary);
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }

        .mobile-menu a.nav-link:last-child {
            border-bottom: none;
        }

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

        @media (min-width: 768px) {
            .main-nav { display: flex; }
            .header-search { display: flex; }
            .menu-toggle { display: none; }
            .mobile-menu { display: none !important; }
        }

        @media (max-width: 767px) {
            .header-logo .logo-text { font-size: 0.9rem; }
            .btn-login-header { padding: 0.45rem 0.7rem; font-size: 0.82rem; }
            .btn-signup-header { padding: 0.45rem 0.8rem; font-size: 0.82rem; }
        }

        @media (max-width: 520px) {
            .header-logo .logo-text { display: none; }
            .header-logo .logo-icon { width: 36px; height: 36px; }
            .header-actions { gap: 0.4rem; }
        }

        /* ===== Hero Section ===== */
        .hero-section {
            position: relative;
            padding-top: 110px;
            padding-bottom: 3.5rem;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -180px;
            right: -180px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -120px;
            left: -120px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
            position: relative;
            z-index: 2;
        }

        @media (min-width: 768px) {
            .hero-grid {
                grid-template-columns: 1.2fr 0.8fr;
                align-items: center;
                gap: 3rem;
            }
        }

        .hero-content {
            text-align: left;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.4rem 0.9rem;
            background: var(--glass-bg);
            border: 1px solid var(--border-glass);
            border-radius: 999px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--accent-gold);
            margin-bottom: 1.2rem;
            letter-spacing: 0.02em;
        }

        .hero-badge i {
            font-size: 0.8rem;
        }

        .hero-title {
            font-size: clamp(1.7rem, 4vw, 2.6rem);
            font-weight: 800;
            margin-bottom: 1.2rem;
            letter-spacing: -0.02em;
            line-height: 1.25;
            color: var(--text-primary);
        }

        .hero-title .highlight {
            color: var(--accent-gold);
            background: linear-gradient(135deg, #FFD700 0%, #FF8C00 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 620px;
            margin-bottom: 1.8rem;
            line-height: 1.7;
        }

        .hero-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin-bottom: 2rem;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.8rem 1.6rem;
            font-size: 0.95rem;
            font-weight: 700;
            color: #0B1220;
            background: linear-gradient(135deg, #FFD700 0%, #FFB800 100%);
            border-radius: 10px;
            border: none;
            box-shadow: 0 0 20px rgba(255, 215, 0, 0.35);
            white-space: nowrap;
        }

        .btn-primary:hover {
            box-shadow: 0 0 35px rgba(255, 215, 0, 0.55);
            transform: translateY(-2px);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.8rem 1.6rem;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            background: var(--glass-bg);
            border: 1px solid var(--border-glass);
            border-radius: 10px;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: var(--glass-bg-hover);
            border-color: rgba(255, 255, 255, 0.18);
            transform: translateY(-2px);
        }

        .hero-status-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            align-items: center;
            padding: 1rem 1.2rem;
            background: var(--glass-bg);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }

        .status-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.82rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .status-item .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #2EC4B6;
            box-shadow: 0 0 10px rgba(46, 196, 182, 0.6);
            animation: pulse-dot 2s ease-in-out infinite;
        }

        .status-item .status-dot.cyan {
            background: var(--accent-cyan);
            box-shadow: 0 0 10px rgba(0, 229, 255, 0.6);
        }

        .status-item strong {
            color: var(--text-primary);
            font-weight: 700;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }

        .hero-icon-matrix {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 0.8rem;
            position: relative;
            z-index: 2;
        }

        .hero-icon-item {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            padding: 1rem 1.2rem;
            background: var(--glass-bg);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: all 0.3s ease;
        }

        .hero-icon-item:hover {
            background: var(--glass-bg-hover);
            border-color: rgba(255, 255, 255, 0.18);
            transform: translateY(-3px);
            box-shadow: var(--shadow-glow-gold);
        }

        .hero-icon-item .icon-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(255,215,0,0.15) 0%, rgba(255,140,0,0.1) 100%);
            color: var(--accent-gold);
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        .hero-icon-item .icon-wrap.cyan {
            background: linear-gradient(135deg, rgba(0,229,255,0.12) 0%, rgba(0,240,255,0.06) 100%);
            color: var(--accent-cyan);
        }

        .hero-icon-item .icon-wrap.emerald {
            background: linear-gradient(135deg, rgba(46,196,182,0.14) 0%, rgba(46,196,182,0.06) 100%);
            color: #2EC4B6;
        }

        .hero-icon-item .icon-wrap.red {
            background: linear-gradient(135deg, rgba(255,71,87,0.14) 0%, rgba(255,71,87,0.06) 100%);
            color: var(--accent-red);
        }

        .hero-icon-item .icon-label {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.3;
        }

        .hero-icon-item .icon-sub {
            font-size: 0.72rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        @media (max-width: 520px) {
            .hero-icon-matrix {
                grid-template-columns: 1fr 1fr;
                gap: 0.6rem;
            }
            .hero-icon-item {
                padding: 0.7rem 0.8rem;
            }
            .hero-icon-item .icon-wrap {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }
            .hero-icon-item .icon-label {
                font-size: 0.72rem;
            }
            .hero-icon-item .icon-sub {
                font-size: 0.62rem;
            }
        }

        /* ===== Metrics Section ===== */
        .section {
            padding: 3rem 0;
            position: relative;
        }

        .metrics-section {
            padding-top: 2rem;
            padding-bottom: 3rem;
        }

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

        @media (min-width: 768px) {
            .metrics-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .metric-card {
            padding: 1.4rem 1.2rem;
            background: var(--glass-bg);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            text-align: left;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            transition: all 0.3s ease;
        }

        .metric-card:hover {
            background: var(--glass-bg-hover);
            border-color: rgba(255, 255, 255, 0.18);
            transform: translateY(-3px);
            box-shadow: var(--shadow-soft);
        }

        .metric-value {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.2;
            margin-bottom: 0.3rem;
        }

        .metric-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .metric-label strong {
            color: var(--text-primary);
            font-weight: 600;
        }

        /* ===== Article Content Section ===== */
        .article-content-section {
            padding-top: 2.5rem;
            padding-bottom: 3.5rem;
        }

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

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

        .rules-text h2 {
            font-size: 1.35rem;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
            color: var(--text-primary);
            border-left: 3px solid var(--accent-gold);
            padding-left: 1rem;
        }

        .rules-text h2:first-child {
            margin-top: 0;
        }

        .rules-text h3 {
            font-size: 1.1rem;
            margin-top: 1.5rem;
            margin-bottom: 0.6rem;
            color: var(--accent-gold-soft);
        }

        .rules-text p {
            font-size: 0.95rem;
            line-height: 1.75;
            color: var(--text-secondary);
            margin-bottom: 1rem;
            text-align: left;
        }

        .rules-text ul, .rules-text ol {
            padding-left: 1.5rem;
            margin-bottom: 1.2rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.75;
        }

        .rules-text li {
            margin-bottom: 0.4rem;
        }

        .rules-text li strong {
            color: var(--text-primary);
            font-weight: 600;
        }

        .rules-divider {
            border: none;
            height: 1px;
            background: var(--border-glass);
            margin: 1.5rem 0;
        }

        /* ===== Membership Benefits Section ===== */
        .benefits-section {
            padding-top: 3rem;
            padding-bottom: 3rem;
        }

        .benefits-wrapper {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.2rem;
        }

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

        .benefit-card {
            padding: 1.6rem 1.4rem;
            background: var(--glass-bg);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            text-align: left;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .benefit-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold) 0%, var(--accent-cyan) 100%);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .benefit-card:hover {
            background: var(--glass-bg-hover);
            border-color: rgba(255, 255, 255, 0.18);
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow-gold);
        }

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

        .benefit-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(255,215,0,0.2) 0%, rgba(255,140,0,0.1) 100%);
            color: var(--accent-gold);
            font-size: 1.3rem;
            margin-bottom: 1rem;
        }

        .benefit-icon.cyan {
            background: linear-gradient(135deg, rgba(0,229,255,0.16) 0%, rgba(0,240,255,0.06) 100%);
            color: var(--accent-cyan);
        }

        .benefit-icon.emerald {
            background: linear-gradient(135deg, rgba(46,196,182,0.18) 0%, rgba(46,196,182,0.06) 100%);
            color: #2EC4B6;
        }

        .benefit-icon.red {
            background: linear-gradient(135deg, rgba(255,71,87,0.18) 0%, rgba(255,71,87,0.06) 100%);
            color: var(--accent-red);
        }

        .benefit-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }

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

        /* ===== Price Section ===== */
        .price-section {
            padding-top: 3rem;
            padding-bottom: 3.5rem;
        }

        .price-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.2rem;
        }

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

        .price-card {
            padding: 1.8rem 1.5rem;
            background: var(--glass-bg);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: all 0.3s ease;
            position: relative;
            display: flex;
            flex-direction: column;
        }

        .price-card:hover {
            background: var(--glass-bg-hover);
            border-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-5px);
            box-shadow: var(--shadow-soft);
        }

        .price-card.featured {
            border-color: rgba(255, 215, 0, 0.45);
            box-shadow: 0 0 30px rgba(255, 215, 0, 0.15);
        }

        .price-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            padding: 0.3rem 0.9rem;
            background: linear-gradient(135deg, #FFD700 0%, #FF8C00 100%);
            color: #0B1220;
            font-size: 0.72rem;
            font-weight: 800;
            border-radius: 999px;
            white-space: nowrap;
            letter-spacing: 0.03em;
        }

        .price-name {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }

        .price-amount {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 0.3rem;
            line-height: 1.1;
        }

        .price-amount small {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-muted);
        }

        .price-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 1.2rem;
        }

        .price-features {
            list-style: none;
            padding: 0;
            margin: 0 0 1.5rem 0;
            flex: 1;
        }

        .price-features li {
            display: flex;
            align-items: flex-start;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 0.6rem;
            line-height: 1.5;
        }

        .price-features li i {
            color: #2EC4B6;
            font-size: 0.85rem;
            margin-top: 3px;
        }

        .price-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.7rem 1.2rem;
            font-size: 0.9rem;
            font-weight: 700;
            border-radius: 10px;
            border: none;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .price-cta.cta-gold {
            background: linear-gradient(135deg, #FFD700 0%, #FFB800 100%);
            color: #0B1220;
            box-shadow: 0 0 16px rgba(255, 215, 0, 0.3);
        }

        .price-cta.cta-gold:hover {
            box-shadow: 0 0 30px rgba(255, 215, 0, 0.5);
            transform: translateY(-2px);
        }

        .price-cta.cta-ghost {
            background: var(--glass-bg-hover);
            color: var(--text-primary);
            border: 1px solid var(--border-glass);
        }

        .price-cta.cta-ghost:hover {
            border-color: rgba(255, 255, 255, 0.25);
            transform: translateY(-2px);
        }

        /* ===== News Section ===== */
        .news-section {
            padding-top: 3rem;
            padding-bottom: 3.5rem;
        }

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

        @media (min-width: 768px) {
            .news-layout {
                grid-template-columns: 1.6fr 0.8fr;
            }
        }

        .news-main-list {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }

        .news-card {
            display: block;
            padding: 1.3rem 1.3rem;
            background: var(--glass-bg);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            transition: all 0.3s ease;
        }

        .news-card:hover {
            background: var(--glass-bg-hover);
            border-color: rgba(255, 255, 255, 0.18);
            transform: translateX(5px);
            box-shadow: var(--shadow-soft);
        }

        .news-card-meta {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            margin-bottom: 0.5rem;
            flex-wrap: wrap;
        }

        .news-badge {
            display: inline-flex;
            align-items: center;
            padding: 0.2rem 0.6rem;
            background: rgba(255, 215, 0, 0.12);
            border-radius: 999px;
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--accent-gold);
        }

        .news-date {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .news-card-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.3rem;
            line-height: 1.4;
        }

        .news-card-excerpt {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        .news-sidebar {
            background: var(--glass-bg);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            height: fit-content;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .news-sidebar h3 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
            border-bottom: 1px solid var(--border-glass);
            padding-bottom: 0.7rem;
        }

        .news-sidebar .side-link {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.6rem 0;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-secondary);
            border-bottom: 1px solid rgba(255,255,255,0.04);
            transition: all 0.25s ease;
        }

        .news-sidebar .side-link:last-child {
            border-bottom: none;
        }

        .news-sidebar .side-link:hover {
            color: var(--accent-gold);
            padding-left: 0.5rem;
        }

        .news-sidebar .side-link i {
            color: var(--accent-gold);
            font-size: 0.75rem;
            flex-shrink: 0;
        }

        .news-sidebar .side-feature-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 1rem;
        }

        .news-sidebar .side-feature-img img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }

        /* ===== Section Head Common ===== */
        .section-head {
            margin-bottom: 2rem;
        }

        .section-head .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-gold);
            margin-bottom: 0.6rem;
        }

        .section-head .section-tag i {
            font-size: 0.7rem;
        }

        .section-head h2 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
            letter-spacing: -0.01em;
        }

        .section-head p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 0;
            max-width: 700px;
            text-align: left;
        }

        /* ===== Activation Section ===== */
        .activation-section {
            padding-top: 3rem;
            padding-bottom: 3.5rem;
        }

        .activation-banner {
            position: relative;
            padding: 2.5rem 2rem;
            background: var(--glass-bg);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-xl);
            overflow: hidden;
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            text-align: left;
        }

        .activation-banner::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .activation-banner .activation-content {
            position: relative;
            z-index: 2;
            max-width: 600px;
        }

        .activation-banner h2 {
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 0.8rem;
            color: var(--text-primary);
        }

        .activation-banner p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
            line-height: 1.7;
        }

        .activation-banner .activation-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
        }

        /* ===== Brand Story Section ===== */
        .brand-story-section {
            padding-top: 3rem;
            padding-bottom: 3.5rem;
        }

        .brand-story-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            align-items: center;
        }

        @media (min-width: 768px) {
            .brand-story-grid {
                grid-template-columns: 0.9fr 1.1fr;
            }
        }

        .brand-story-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-glass);
            box-shadow: var(--shadow-soft);
            position: relative;
        }

        .brand-story-image img {
            width: 100%;
            height: 260px;
            object-fit: cover;
        }

        .brand-story-image .image-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7,11,24,0.2) 0%, rgba(7,11,24,0.7) 100%);
            display: flex;
            align-items: flex-end;
            padding: 1.2rem;
        }

        .brand-story-image .image-overlay span {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
        }

        .brand-story-text {
            text-align: left;
        }

        .brand-story-text h2 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 0.8rem;
        }

        .brand-story-text p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 1rem;
        }

        .brand-story-text .brand-quote {
            padding: 1rem 1.2rem;
            border-left: 3px solid var(--accent-gold);
            background: var(--glass-bg);
            border-radius: 8px;
            font-style: italic;
            color: var(--text-primary);
            font-size: 0.92rem;
            margin-bottom: 1rem;
        }

        /* ===== Featured Categories Section ===== */
        .categories-section {
            padding-top: 3rem;
            padding-bottom: 3.5rem;
        }

        .categories-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.2rem;
        }

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

        .category-carousel-item {
            padding: 0;
            background: var(--glass-bg);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .category-carousel-item:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-glow-gold);
            border-color: rgba(255, 215, 0, 0.3);
        }

        .category-carousel-item .cat-img {
            width: 100%;
            height: 170px;
            object-fit: cover;
        }

        .category-carousel-item .cat-body {
            padding: 1.2rem 1.3rem 1.4rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .category-carousel-item .cat-body h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.4rem;
        }

        .category-carousel-item .cat-body p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
            flex: 1;
            line-height: 1.6;
        }

        .category-carousel-item .cat-link {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--accent-gold);
        }

        .category-carousel-item .cat-link:hover {
            gap: 0.7rem;
        }

        /* ===== Reviews Section ===== */
        .reviews-section {
            padding-top: 3rem;
            padding-bottom: 3.5rem;
        }

        .reviews-summary {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }

        .reviews-score {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }

        .reviews-score .score-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1;
        }

        .reviews-score .score-stars {
            display: flex;
            gap: 0.15rem;
            color: var(--accent-gold);
            font-size: 1rem;
        }

        .reviews-score .score-label {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .reviews-count {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .reviews-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.2rem;
        }

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

        .review-card {
            padding: 1.5rem 1.4rem;
            background: var(--glass-bg);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            transition: all 0.3s ease;
            text-align: left;
        }

        .review-card:hover {
            background: var(--glass-bg-hover);
            border-color: rgba(255, 255, 255, 0.18);
            transform: translateY(-3px);
            box-shadow: var(--shadow-soft);
        }

        .review-card .review-stars {
            color: var(--accent-gold);
            font-size: 0.9rem;
            margin-bottom: 0.7rem;
            display: flex;
            gap: 0.1rem;
        }

        .review-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 1rem;
        }

        .review-card .review-author {
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .review-card .review-author .avatar-placeholder {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold) 0%, #B8860B 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0B1220;
            font-weight: 800;
            font-size: 0.8rem;
            flex-shrink: 0;
        }

        .review-card .review-author .author-name {
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .review-card .review-author .author-role {
            font-size: 0.7rem;
            color: var(--text-muted);
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            padding-top: 3rem;
            padding-bottom: 4rem;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            max-width: 850px;
        }

        .faq-item {
            background: var(--glass-bg);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .faq-item:hover {
            border-color: rgba(255, 255, 255, 0.16);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.1rem 1.3rem;
            cursor: pointer;
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: all 0.25s ease;
        }

        .faq-question:hover {
            color: var(--accent-gold);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 6px;
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
            font-size: 0.75rem;
            transition: transform 0.35s ease;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 1.3rem;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 1.2rem;
        }

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

        /* ===== Footer ===== */
        .site-footer {
            background: rgba(7, 11, 24, 0.9);
            border-top: 1px solid var(--border-glass);
            padding: 3rem 0 1.5rem;
            margin-top: 2rem;
        }

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

        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 1.4fr 1fr 1fr 1fr;
            }
        }

        .footer-brand {
            text-align: left;
        }

        .footer-brand .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 0.8rem;
        }

        .footer-brand .footer-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 9px;
            background: linear-gradient(135deg, var(--accent-gold) 0%, #B8860B 100%);
            color: #0B1220;
            font-size: 0.9rem;
        }

        .footer-brand p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.8rem;
        }

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

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

        .footer-col ul a {
            font-size: 0.82rem;
            color: var(--text-muted);
            transition: color 0.25s ease;
        }

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

        .footer-disclaimer {
            font-size: 0.75rem;
            color: #5A6478;
            line-height: 1.7;
            margin-top: 1.5rem;
            padding-top: 1.2rem;
            border-top: 1px solid var(--border-glass);
            text-align: left;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            align-items: center;
            justify-content: space-between;
            margin-top: 1.5rem;
        }

        .footer-bottom p {
            font-size: 0.75rem;
            color: #5A6478;
            margin-bottom: 0;
        }

        /* ===== FAB ===== */
        .fab {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem 1rem;
            background: rgba(7, 11, 24, 0.6);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(0, 229, 255, 0.35);
            border-radius: 999px;
            color: var(--text-primary);
            font-size: 0.8rem;
            font-weight: 700;
            min-width: 48px;
            min-height: 48px;
            justify-content: center;
            box-shadow: 0 0 15px rgba(0, 229, 255, 0.25);
            transition: all 0.3s ease;
            text-decoration: none;
            opacity: 0.6;
        }

        .fab:hover {
            opacity: 1;
            box-shadow: 0 0 28px rgba(0, 229, 255, 0.45);
            transform: scale(1.05);
            color: var(--text-primary);
        }

        .fab:active {
            transform: scale(0.95);
            border-color: #FF79C6;
        }

        .fab .fab-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(0,229,255,0.2) 0%, rgba(0,240,255,0.05) 100%);
            color: var(--accent-cyan);
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .fab .fab-notification {
            position: absolute;
            top: -4px;
            right: 8px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent-red);
            box-shadow: 0 0 10px rgba(255, 71, 87, 0.7);
            animation: fab-blink 1.2s ease-in-out infinite;
        }

        .fab .fab-label {
            white-space: nowrap;
            font-size: 0.75rem;
            font-weight: 700;
        }

        @keyframes fab-blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        @media (max-width: 520px) {
            .fab {
                padding: 0.5rem;
                border-radius: 50%;
                min-width: 46px;
                min-height: 46px;
            }
            .fab .fab-label {
                display: none;
            }
            .fab .fab-icon {
                width: 30px;
                height: 30px;
            }
        }

        /* ===== Utility ===== */
        .text-gold { color: var(--accent-gold); }
        .text-cyan { color: var(--accent-cyan); }
        .text-muted { color: var(--text-muted); }
        .mt-2 { margin-top: var(--space-5); }
        .mb-2 { margin-bottom: var(--space-5); }

/* roulang page: article */
:root {
            --primary-bg: #0a0e1a;
            --secondary-bg: #0f162a;
            --card-bg: rgba(18, 28, 51, 0.7);
            --glass-bg: rgba(255, 255, 255, 0.04);
            --glass-border: rgba(255, 255, 255, 0.1);
            --accent-emerald: #2EC4B6;
            --accent-gold: #FFD700;
            --accent-cyan: #00F0FF;
            --accent-blue: #3B82F6;
            --accent-red: #D32F2F;
            --text-primary: #FFFFFF;
            --text-secondary: #B0B8C8;
            --text-muted: #7A8798;
            --text-dark: #1a2235;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
            --shadow-neon: 0 0 20px rgba(0, 240, 255, 0.4), 0 0 40px rgba(0, 240, 255, 0.15);
            --shadow-gold: 0 0 16px rgba(255, 215, 0, 0.35);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --radius-pill: 9999px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.75rem;
            --spacing-lg: 2.5rem;
            --spacing-xl: 4rem;
            --spacing-2xl: 6rem;
            --transition-fast: 180ms ease;
            --transition-base: 300ms ease;
            --transition-slow: 500ms ease;
            --font-body: 'Inter', 'Segoe UI', Tahoma, sans-serif;
            --font-display: 'Playfair Display', 'Inter', serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        body {
            margin: 0;
            padding: 0;
            background-color: var(--primary-bg);
            color: var(--text-primary);
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.6;
            overflow-x: hidden;
            background-image:
                radial-gradient(ellipse at 20% 10%, rgba(46, 196, 182, 0.06) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 30%, rgba(0, 240, 255, 0.05) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 70%, rgba(59, 130, 246, 0.04) 0%, transparent 45%);
            background-attachment: fixed;
        }

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

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

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

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

        button {
            cursor: pointer;
        }

        :focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            width: 100%;
        }

        /* ============ HEADER & NAVIGATION ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 14, 26, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--glass-border);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base), background var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
            background: rgba(10, 14, 26, 0.95);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            width: 100%;
        }

        .logo-container {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--accent-emerald), #0d9488);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            color: #fff;
            box-shadow: 0 4px 16px rgba(46, 196, 182, 0.3);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }

        .logo-icon:hover {
            transform: rotate(8deg) scale(1.05);
            box-shadow: 0 6px 24px rgba(46, 196, 182, 0.45);
        }

        .logo-text {
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .logo-text strong {
            color: var(--accent-gold);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-left: auto;
            flex-wrap: nowrap;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 8px 14px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-pill);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-link.active {
            color: var(--accent-emerald);
            background: rgba(46, 196, 182, 0.12);
            font-weight: 600;
        }

        .nav-slot {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-left: 10px;
        }

        .btn-login {
            padding: 8px 16px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-secondary);
            background: transparent;
            border: none;
            border-radius: var(--radius-pill);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-login:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.08);
        }

        .btn-signup {
            padding: 8px 18px;
            font-size: 0.8rem;
            font-weight: 700;
            color: #0a0e1a;
            background: linear-gradient(135deg, var(--accent-gold), #FFA500);
            border: none;
            border-radius: var(--radius-pill);
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 0 24px rgba(255, 215, 0, 0.55);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            padding: 6px;
            border-radius: 6px;
        }

        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Mobile nav dropdown */
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: rgba(10, 14, 26, 0.98);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--glass-border);
            z-index: 999;
            padding: 1rem 1.5rem 1.5rem;
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
        }

        .mobile-nav-panel.open {
            display: block;
        }

        .mobile-nav-panel .nav-link {
            display: flex;
            width: 100%;
            padding: 12px 14px;
            font-size: 0.95rem;
            border-radius: var(--radius-sm);
        }

        .mobile-nav-panel .nav-slot {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-left: 0;
            margin-top: 12px;
            padding-top: 12px;
            border-top: 1px solid var(--border-subtle);
        }

        .mobile-nav-panel .btn-login,
        .mobile-nav-panel .btn-signup {
            display: block;
            width: 100%;
            text-align: center;
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
        }

        /* ============ BREADCRUMB ============ */
        .breadcrumb-bar {
            padding: calc(var(--header-height) + 2rem) 0 1.25rem;
            background: linear-gradient(180deg, rgba(10, 14, 26, 0.9) 0%, transparent 100%);
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb .separator {
            color: var(--text-muted);
            opacity: 0.6;
        }

        .breadcrumb .current {
            color: var(--accent-emerald);
            font-weight: 600;
            max-width: 300px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /* ============ HERO / BANNER ============ */
        .article-hero {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: flex-end;
            padding: var(--spacing-xl) 0 var(--spacing-lg);
            background-image: url('/assets/images/coverpic/cover-1.png');
            background-size: cover;
            background-position: center;
            border-radius: var(--radius-lg);
            margin-bottom: var(--spacing-lg);
            overflow: hidden;
            border: 1px solid var(--glass-border);
            box-shadow: var(--shadow-lg);
        }

        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 14, 26, 0.35) 0%, rgba(10, 14, 26, 0.75) 55%, rgba(10, 14, 26, 0.95) 100%);
            z-index: 1;
        }

        .article-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 35%, rgba(0, 240, 255, 0.12) 0%, transparent 55%);
            z-index: 1;
            pointer-events: none;
        }

        .article-hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }

        .hero-meta-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            font-size: 0.75rem;
            font-weight: 700;
            color: #0a0e1a;
            background: var(--accent-gold);
            border-radius: var(--radius-pill);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            box-shadow: var(--shadow-gold);
        }

        .hero-date {
            font-size: 0.85rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .hero-read-time {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-hero h1 {
            font-size: clamp(1.75rem, 5vw, 2.8rem);
            font-weight: 900;
            line-height: 1.2;
            color: var(--text-primary);
            margin: 0 0 16px;
            letter-spacing: -0.02em;
            text-shadow: 0 2px 16px rgba(0, 0, 0, 0.5);
        }

        .article-hero .hero-excerpt {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.65;
            max-width: 640px;
            margin: 0;
        }

        /* ============ MAIN LAYOUT ============ */
        .article-main-wrapper {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 320px;
            gap: var(--spacing-lg);
            align-items: start;
            margin-bottom: var(--spacing-xl);
        }

        .article-body {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            font-size: 1rem;
            color: var(--text-primary);
            line-height: 1.7;
            overflow-wrap: break-word;
        }

        .article-body h2,
        .article-body h3,
        .article-body h4 {
            color: var(--accent-gold);
            font-weight: 700;
            margin-top: 1.8em;
            margin-bottom: 0.75em;
            line-height: 1.3;
        }

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

        .article-body h3 {
            font-size: 1.2rem;
        }

        .article-body p {
            margin: 0 0 1rem;
        }

        .article-body ul,
        .article-body ol {
            padding-left: 1.5rem;
            margin: 0 0 1rem;
        }

        .article-body li {
            margin-bottom: 0.5rem;
        }

        .article-body blockquote {
            border-left: 3px solid var(--accent-emerald);
            padding: 12px 18px;
            margin: 1.25rem 0;
            background: rgba(46, 196, 182, 0.08);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-secondary);
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 1.25rem 0;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.25rem 0;
            font-size: 0.9rem;
        }

        .article-body table th,
        .article-body table td {
            padding: 10px 14px;
            border: 1px solid var(--border-subtle);
            text-align: left;
        }

        .article-body table th {
            background: rgba(255, 215, 0, 0.08);
            color: var(--accent-gold);
            font-weight: 600;
        }

        /* ============ SIDEBAR ============ */
        .article-sidebar {
            position: sticky;
            top: calc(var(--header-height) + 1.5rem);
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }

        .sidebar-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            padding: 1.25rem;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .sidebar-card h3 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card h3 i {
            color: var(--accent-emerald);
        }

        .sidebar-card ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .sidebar-card ul li a {
            font-size: 0.88rem;
            color: var(--text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            padding: 6px 0;
            transition: color var(--transition-fast);
        }

        .sidebar-card ul li a:hover {
            color: var(--accent-gold);
        }

        .sidebar-card ul li a i {
            color: var(--accent-emerald);
            font-size: 0.7rem;
            margin-top: 4px;
        }

        .sidebar-cta-mini {
            background: linear-gradient(135deg, rgba(46, 196, 182, 0.15), rgba(0, 240, 255, 0.08));
            border: 1px solid rgba(46, 196, 182, 0.3);
            text-align: center;
            padding: 1.5rem 1.25rem;
        }

        .sidebar-cta-mini p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0 0 12px;
        }

        .btn-mini {
            display: inline-block;
            padding: 10px 22px;
            font-size: 0.85rem;
            font-weight: 700;
            color: #0a0e1a;
            background: linear-gradient(135deg, var(--accent-gold), #FFA500);
            border: none;
            border-radius: var(--radius-pill);
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-fast);
        }

        .btn-mini:hover {
            transform: translateY(-1px);
            box-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
            color: #0a0e1a;
        }

        /* ============ IF NO ARTICLE ============ */
        .no-article {
            text-align: center;
            padding: var(--spacing-xl) var(--spacing-md);
        }

        .no-article .icon-large {
            font-size: 4rem;
            color: var(--accent-emerald);
            margin-bottom: 1rem;
        }

        .no-article h2 {
            font-size: 1.5rem;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .no-article p {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
        }

        /* ============ SECTION STYLES ============ */
        .section-padding {
            padding: var(--spacing-xl) 0;
        }

        .section-padding-sm {
            padding: var(--spacing-lg) 0;
        }

        .section-title {
            font-size: clamp(1.5rem, 3.5vw, 2.2rem);
            font-weight: 800;
            color: var(--text-primary);
            margin: 0 0 8px;
            letter-spacing: -0.01em;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            margin: 0 0 1.5rem;
            line-height: 1.6;
        }

        .section-divider {
            width: 64px;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-emerald), var(--accent-gold));
            border-radius: 2px;
            margin: 12px 0 1.25rem;
        }

        /* ============ DATA DASHBOARD / METRICS ============ */
        .metrics-dashboard {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            margin-bottom: var(--spacing-lg);
        }

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

        .metric-tile {
            padding: 1rem;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-base);
            text-align: center;
        }

        .metric-tile:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(46, 196, 182, 0.35);
            transform: translateY(-3px);
            box-shadow: var(--shadow-sm);
        }

        .metric-tile .metric-icon {
            font-size: 1.5rem;
            color: var(--accent-gold);
            margin-bottom: 6px;
        }

        .metric-tile .metric-value {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.2;
        }

        .metric-tile .metric-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        /* ============ SERVICE MATRIX / RULE STEPS ============ */
        .service-matrix {
            margin-bottom: var(--spacing-lg);
        }

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

        .matrix-item {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            padding: 1.25rem;
            backdrop-filter: blur(12px);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .matrix-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-emerald), transparent);
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .matrix-item:hover {
            border-color: rgba(46, 196, 182, 0.35);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .matrix-item:hover::before {
            opacity: 1;
        }

        .matrix-item .matrix-icon {
            width: 40px;
            height: 40px;
            background: rgba(46, 196, 182, 0.12);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--accent-emerald);
            margin-bottom: 10px;
        }

        .matrix-item h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 6px;
        }

        .matrix-item p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.55;
        }

        /* ============ RESULT COMPARISON ============ */
        .comparison-section {
            margin-bottom: var(--spacing-lg);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--glass-bg);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--glass-border);
            font-size: 0.9rem;
        }

        .comparison-table thead th {
            background: rgba(255, 215, 0, 0.08);
            color: var(--accent-gold);
            font-weight: 700;
            padding: 12px 16px;
            text-align: left;
            font-size: 0.85rem;
            border-bottom: 2px solid rgba(255, 215, 0, 0.25);
        }

        .comparison-table tbody td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            vertical-align: middle;
        }

        .comparison-table tbody tr:last-child td {
            border-bottom: none;
        }

        .comparison-table tbody tr:hover td {
            background: rgba(255, 255, 255, 0.03);
            color: var(--text-primary);
        }

        .comparison-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 10px;
            font-size: 0.72rem;
            font-weight: 700;
            border-radius: var(--radius-pill);
            background: rgba(46, 196, 182, 0.15);
            color: var(--accent-emerald);
        }

        .comparison-badge.high {
            background: rgba(255, 215, 0, 0.15);
            color: var(--accent-gold);
        }

        /* ============ FAQ ============ */
        .faq-section {
            margin-bottom: var(--spacing-lg);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(46, 196, 182, 0.3);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 18px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            background: transparent;
            border: none;
            text-align: left;
            width: 100%;
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--accent-gold);
        }

        .faq-question .fa-chevron-down {
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .fa-chevron-down {
            transform: rotate(180deg);
            color: var(--accent-gold);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow);
        }

        .faq-answer-inner {
            padding: 0 18px 16px;
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ============ CTA ============ */
        .cta-section {
            background: linear-gradient(135deg, rgba(46, 196, 182, 0.12), rgba(0, 240, 255, 0.05), rgba(255, 215, 0, 0.06));
            border: 1px solid rgba(46, 196, 182, 0.3);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl) var(--spacing-lg);
            text-align: center;
            margin-bottom: var(--spacing-lg);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -30%;
            width: 80%;
            height: 200%;
            background: radial-gradient(ellipse, rgba(0, 240, 255, 0.1) 0%, transparent 60%);
            transform: rotate(20deg);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: clamp(1.5rem, 3.5vw, 2rem);
            font-weight: 800;
            color: var(--text-primary);
            margin: 0 0 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 1.5rem;
            position: relative;
            z-index: 1;
        }

        .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            position: relative;
            z-index: 1;
        }

        .btn-primary-glow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            font-size: 0.95rem;
            font-weight: 700;
            color: #0a0e1a;
            background: linear-gradient(135deg, var(--accent-gold), #FFA500);
            border: none;
            border-radius: var(--radius-pill);
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
        }

        .btn-primary-glow:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(255, 215, 0, 0.6);
            color: #0a0e1a;
        }

        .btn-secondary-glass {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-pill);
            transition: all var(--transition-base);
        }

        .btn-secondary-glass:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.2);
            color: var(--text-primary);
            transform: translateY(-2px);
        }

        /* ============ FAB ============ */
        .fab-royal {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(10, 14, 26, 0.85);
            border: 2px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            color: var(--accent-gold);
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3), inset 0 0 12px rgba(255, 215, 0, 0.08);
            animation: fab-breathe 2.5s ease-in-out infinite;
            transition: all var(--transition-base);
            opacity: 0.7;
        }

        .fab-royal:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 6px 28px rgba(255, 215, 0, 0.5), inset 0 0 16px rgba(255, 215, 0, 0.12);
        }

        .fab-royal:active {
            transform: scale(0.95) translateY(2px);
        }

        .fab-royal .fab-notification {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            background: var(--accent-red);
            border-radius: 50%;
            border: 2px solid rgba(10, 14, 26, 0.9);
            animation: blink-dot 1.2s ease-in-out infinite;
        }

        @keyframes fab-breathe {
            0%, 100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-4px);
            }
        }

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

        /* ============ FOOTER ============ */
        .site-footer {
            background: rgba(10, 14, 26, 0.9);
            border-top: 1px solid var(--glass-border);
            padding: var(--spacing-xl) 0 var(--spacing-sm);
            margin-top: var(--spacing-lg);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 2rem;
            margin-bottom: var(--spacing-lg);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .footer-logo .logo-icon {
            width: 34px;
            height: 34px;
            font-size: 1rem;
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.88rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin: 0 0 12px;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--accent-gold);
        }

        .footer-disclaimer {
            border-top: 1px solid var(--border-subtle);
            padding: 1rem 0;
            margin-bottom: 0.75rem;
        }

        .footer-disclaimer p {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.55;
        }

        .footer-bottom {
            text-align: center;
            padding: 0.75rem 0 0;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .article-main-wrapper {
                grid-template-columns: 1fr;
            }

            .article-sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }

            .sidebar-card {
                flex: 1 1 220px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 62px;
            }

            .main-nav {
                display: none;
            }

            .nav-slot {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .article-hero {
                min-height: 220px;
                padding: var(--spacing-lg) var(--spacing-md) var(--spacing-md);
                border-radius: var(--radius-md);
            }

            .article-hero h1 {
                font-size: 1.4rem;
            }

            .article-hero .hero-excerpt {
                font-size: 0.9rem;
            }

            .article-body {
                padding: var(--spacing-md);
                font-size: 0.92rem;
                border-radius: var(--radius-md);
            }

            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .metric-tile {
                padding: 0.75rem;
            }

            .metric-tile .metric-value {
                font-size: 1.2rem;
            }

            .matrix-grid {
                grid-template-columns: 1fr;
            }

            .comparison-table {
                font-size: 0.78rem;
            }

            .comparison-table thead th,
            .comparison-table tbody td {
                padding: 8px 10px;
            }

            .cta-section {
                padding: var(--spacing-lg) var(--spacing-md);
            }

            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }

            .btn-primary-glow,
            .btn-secondary-glass {
                width: 100%;
                justify-content: center;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }

            .breadcrumb .current {
                max-width: 150px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 1rem;
            }

            .logo-text {
                font-size: 1rem;
            }

            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }

            .article-hero {
                min-height: 180px;
            }

            .article-hero h1 {
                font-size: 1.2rem;
            }

            .hero-meta-row {
                gap: 8px;
                font-size: 0.75rem;
            }

            .hero-tag {
                font-size: 0.65rem;
                padding: 4px 10px;
            }

            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.5rem;
            }

            .metric-tile {
                padding: 0.6rem;
            }

            .metric-tile .metric-value {
                font-size: 1rem;
            }

            .metric-tile .metric-label {
                font-size: 0.7rem;
            }

            .section-title {
                font-size: 1.25rem;
            }

            .fab-royal {
                width: 48px;
                height: 48px;
                font-size: 1.05rem;
                left: 0.75rem;
                bottom: 5rem;
            }

            .article-body {
                font-size: 0.88rem;
                padding: 1rem;
            }

            .article-body h2 {
                font-size: 1.2rem;
            }

            .article-sidebar {
                flex-direction: column;
            }
        }

/* roulang page: category1 */
:root {
            --bg-dark: #0e1210;
            --bg-card: #18201b;
            --bg-glass: rgba(24, 32, 27, 0.72);
            --text-primary: #f5f5f7;
            --text-secondary: #b8b8b8;
            --text-muted: #7e8a82;
            --accent-gold: #C5A059;
            --accent-amber: #FFBF00;
            --accent-green: #2EC4B6;
            --border-gold: rgba(197, 160, 89, 0.35);
            --border-subtle: rgba(255, 255, 255, 0.08);
            --shadow-gold: 0 8px 40px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(197, 160, 89, 0.15);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --container: 1200px;
            --header-height: 76px;
            --transition: all 0.25s ease;
        }

        * {
            box-sizing: border-box;
        }

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

        body {
            margin: 0;
            font-family: 'Be Vietnam Pro', sans-serif;
            background: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.6;
            font-size: 16px;
            overflow-x: hidden;
        }

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

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

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

        h1, h2, h3, h4, h5 {
            font-weight: 700;
            line-height: 1.25;
            margin-top: 0;
        }

        h1 {
            font-size: 2.8rem;
            margin-bottom: 1.25rem;
            letter-spacing: -0.01em;
        }

        h2 {
            font-size: 2rem;
            margin-bottom: 1rem;
        }

        h3 {
            font-size: 1.5rem;
            margin-bottom: 0.75rem;
        }

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        .section {
            padding: 5rem 0;
            position: relative;
        }

        .section-heading {
            margin-bottom: 2.5rem;
        }

        .section-heading.left {
            text-align: left;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.85rem 1.8rem;
            border-radius: 999px;
            font-weight: 600;
            font-size: 1rem;
            border: 1px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            gap: 0.5rem;
        }

        .btn-primary {
            background: var(--accent-gold);
            color: #1a1408;
            box-shadow: 0 6px 18px rgba(197, 160, 89, 0.3);
            border-color: var(--accent-gold);
        }

        .btn-primary:hover {
            background: var(--accent-amber);
            color: #1a1408;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(255, 191, 0, 0.4);
        }

        .btn-ghost {
            background: transparent;
            color: var(--text-primary);
            border-color: var(--border-gold);
        }

        .btn-ghost:hover {
            background: rgba(197, 160, 89, 0.12);
            border-color: var(--accent-gold);
            color: var(--accent-amber);
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(14, 18, 16, 0.85);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-subtle);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            color: var(--text-primary);
            font-weight: 800;
            font-size: 1.3rem;
            text-decoration: none;
            letter-spacing: -0.01em;
        }

        .brand-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 20%, rgba(197, 160, 89, 0.5), rgba(14, 18, 16, 0.9));
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            font-size: 1.1rem;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .nav-link {
            color: var(--text-secondary);
            padding: 0.5rem 1rem;
            border-radius: 999px;
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
        }

        .nav-link.active {
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.12);
            border: 1px solid var(--border-gold);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            background: transparent;
            border: 1px solid var(--border-subtle);
            border-radius: 8px;
            padding: 0.7rem;
            cursor: pointer;
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* Hero */
        .category-hero {
            min-height: 92vh;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center;
            position: relative;
            padding-top: var(--header-height);
            padding-bottom: 4rem;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(14, 18, 16, 0.96) 20%, rgba(14, 18, 16, 0.7) 60%, rgba(14, 18, 16, 0.9) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 3rem;
            align-items: center;
            width: 100%;
        }

        .hero-tag {
            display: inline-block;
            padding: 0.4rem 1rem;
            border-radius: 999px;
            background: rgba(197, 160, 89, 0.15);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
            letter-spacing: 0.02em;
        }

        .hero-left h1 {
            color: var(--text-primary);
        }

        .hero-sub {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 540px;
            margin-bottom: 2rem;
            line-height: 1.65;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .hero-stats {
            display: flex;
            justify-content: flex-end;
        }

        .stat-panel {
            background: var(--bg-glass);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 2rem;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
            width: 100%;
            max-width: 420px;
            box-shadow: var(--shadow-gold);
        }

        .stat-item {
            text-align: center;
            border-right: 1px solid var(--border-subtle);
            padding-right: 1rem;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        .stat-item:nth-child(even) {
            border-right: none;
            padding-right: 0;
            padding-left: 1rem;
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.1;
            letter-spacing: -0.02em;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 0.4rem;
        }

        /* Dashboard */
        .dashboard-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            margin-top: 1rem;
        }

        .metric-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 1.8rem 1.5rem;
            border: 1px solid var(--border-subtle);
            transition: var(--transition);
        }

        .metric-card:hover {
            border-color: var(--border-gold);
            transform: translateY(-4px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
        }

        .metric-card .metric-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(197, 160, 89, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.3rem;
            margin-bottom: 1.2rem;
        }

        .metric-card h3 {
            font-size: 1.3rem;
            margin-bottom: 0.5rem;
        }

        .metric-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin: 0;
        }

        /* Two column foundation */
        .two-col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .text-content h2 {
            margin-bottom: 1.2rem;
        }

        .text-content p {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
        }

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

        .check-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.7rem;
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.5;
        }

        .check-list li i {
            color: var(--accent-green);
            margin-top: 0.2rem;
        }

        .image-content {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-gold);
        }

        .image-content img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* Ranking table */
        .rank-table-wrapper {
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            background: var(--bg-card);
        }

        .rank-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }

        .rank-table th, .rank-table td {
            padding: 1rem 1.5rem;
            text-align: left;
            border-bottom: 1px solid var(--border-subtle);
            color: var(--text-secondary);
        }

        .rank-table th {
            background: rgba(197, 160, 89, 0.08);
            color: var(--accent-gold);
            font-weight: 600;
            white-space: nowrap;
        }

        .rank-table tbody tr:hover {
            background: rgba(255, 255, 255, 0.02);
        }

        .rank-badge {
            display: inline-block;
            padding: 0.2rem 0.8rem;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .rank-badge.sap { background: rgba(197, 160, 89, 0.2); color: var(--accent-amber); }
        .rank-badge.lieng { background: rgba(46, 196, 182, 0.15); color: var(--accent-green); }
        .rank-badge.anh { background: rgba(255, 191, 0, 0.15); color: #ffcc80; }
        .rank-badge.diem { background: rgba(255, 255, 255, 0.1); color: var(--text-secondary); }

        /* Timeline */
        .timeline {
            list-style: none;
            padding: 0;
            margin: 2rem 0 0;
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }

        .timeline li {
            display: flex;
            gap: 1.5rem;
            align-items: flex-start;
            position: relative;
        }

        .timeline .step-number {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--accent-gold);
            color: #1a1408;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
            box-shadow: 0 6px 16px rgba(197, 160, 89, 0.3);
        }

        .timeline .step-content h3 {
            margin-bottom: 0.5rem;
        }

        .timeline .step-content p {
            color: var(--text-secondary);
            margin: 0;
            max-width: 700px;
        }

        /* Actions list */
        .action-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
            margin-top: 2rem;
        }

        .action-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 1.6rem 1.5rem;
            border: 1px solid var(--border-subtle);
            transition: var(--transition);
        }

        .action-item:hover {
            border-color: var(--border-gold);
            transform: translateY(-3px);
        }

        .action-item .action-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(197, 160, 89, 0.12);
            color: var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-bottom: 1rem;
        }

        .action-item h3 {
            font-size: 1.25rem;
            margin-bottom: 0.5rem;
        }

        .action-item p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin: 0;
        }

        /* FAQ */
        .accordion {
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-card);
        }

        .accordion-item {
            border-bottom: 1px solid var(--border-subtle);
        }

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

        .accordion-title {
            display: block;
            padding: 1.2rem 1.5rem;
            font-size: 1.05rem;
            color: var(--text-primary);
            background: transparent;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            font-weight: 600;
            position: relative;
        }

        .accordion-title:hover {
            background: rgba(255, 255, 255, 0.03);
            color: var(--accent-gold);
        }

        .accordion-title::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            right: 1.5rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            transition: var(--transition);
        }

        .accordion-item.is-active .accordion-title::after {
            transform: translateY(-50%) rotate(180deg);
            color: var(--accent-gold);
        }

        .accordion-content {
            padding: 0 1.5rem 1.2rem;
            color: var(--text-secondary);
            display: none;
        }

        .accordion-item.is-active .accordion-content {
            display: block;
        }

        /* CTA */
        .cta-inner {
            background: radial-gradient(circle at 80% 20%, rgba(197, 160, 89, 0.12), rgba(14, 18, 16, 0.4));
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 3rem;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 2.5rem;
            align-items: center;
            box-shadow: var(--shadow-gold);
        }

        .cta-text h2 {
            color: var(--text-primary);
        }

        .cta-text p {
            color: var(--text-secondary);
            margin: 0;
            font-size: 1.05rem;
        }

        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .cta-form input[type="email"] {
            width: 100%;
            padding: 0.9rem 1.2rem;
            border-radius: 999px;
            border: 1px solid var(--border-subtle);
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-primary);
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }

        .cta-form input[type="email"]:focus {
            border-color: var(--accent-gold);
            background: rgba(255, 255, 255, 0.08);
        }

        .cta-form .btn {
            width: 100%;
        }

        .form-note {
            font-size: 0.85rem;
            color: var(--text-muted);
            text-align: center;
            margin: 0;
        }

        /* FAB */
        .fab {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            z-index: 999;
            width: 58px;
            height: 58px;
            border-radius: 50%;
            background: rgba(14, 18, 16, 0.8);
            backdrop-filter: blur(8px);
            border: 2px solid transparent;
            background-clip: padding-box;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5), 0 0 0 1px rgba(0, 240, 255, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            opacity: 0.6;
            transition: var(--transition);
            color: #00f0ff;
            font-size: 1.4rem;
            animation: fabBreathe 3s infinite ease-in-out;
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.8), 0 0 0 1px rgba(0, 240, 255, 0.6);
            animation: none;
        }

        .fab:active {
            transform: scale(0.95);
            color: #ff007f;
            box-shadow: 0 0 25px rgba(255, 0, 127, 0.8);
        }

        .fab-notification {
            position: absolute;
            top: 3px;
            right: 3px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #ff007f;
            border: 2px solid var(--bg-dark);
            animation: blink 1.5s infinite;
        }

        @keyframes fabBreathe {
            0%, 100% { opacity: 0.6; transform: translateY(0); }
            50% { opacity: 0.9; transform: translateY(-4px); }
        }

        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* Footer */
        .site-footer {
            background: #0b0e0c;
            border-top: 1px solid var(--border-subtle);
            padding: 4rem 0 1.5rem;
            margin-top: 2rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }

        .footer-brand .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }

        .footer-brand .footer-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: rgba(197, 160, 89, 0.15);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            font-size: 1rem;
        }

        .footer-brand p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            max-width: 320px;
            margin: 0;
        }

        .footer-col h4 {
            color: var(--text-primary);
            font-size: 1.1rem;
            margin-bottom: 1.2rem;
            font-weight: 700;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
        }

        .footer-col ul li a {
            color: var(--text-secondary);
            font-size: 0.95rem;
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--accent-gold);
        }

        .footer-disclaimer {
            background: rgba(255, 255, 255, 0.03);
            border-radius: var(--radius-sm);
            padding: 1.2rem 1.5rem;
            margin-bottom: 1.5rem;
            border: 1px solid var(--border-subtle);
        }

        .footer-disclaimer p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin: 0;
            line-height: 1.6;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-subtle);
        }

        .footer-bottom .copyright {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin: 0;
        }

        .footer-bottom .payment-badges {
            display: flex;
            gap: 0.8rem;
            flex-wrap: wrap;
        }

        .payment-badge {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-subtle);
            border-radius: 6px;
            padding: 0.3rem 0.8rem;
            font-size: 0.8rem;
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .hero-stats {
                justify-content: flex-start;
            }
            .stat-panel {
                max-width: 100%;
            }
            .dashboard-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .two-col {
                grid-template-columns: 1fr;
            }
            .action-list {
                grid-template-columns: 1fr;
            }
            .cta-inner {
                grid-template-columns: 1fr;
                padding: 2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            .section {
                padding: 3.5rem 0;
            }
            .category-hero {
                min-height: auto;
                padding-top: calc(var(--header-height) + 2rem);
            }
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(14, 18, 16, 0.98);
                flex-direction: column;
                padding: 1rem 1.5rem;
                border-bottom: 1px solid var(--border-subtle);
                gap: 0.25rem;
                z-index: 999;
            }
            .main-nav.is-open {
                display: flex;
            }
            .nav-link {
                width: 100%;
                text-align: left;
                padding: 0.7rem 1rem;
            }
            .stat-panel {
                grid-template-columns: 1fr 1fr;
                padding: 1.5rem;
            }
            .stat-number {
                font-size: 2rem;
            }
            .dashboard-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .timeline li {
                gap: 1rem;
            }
            .timeline .step-number {
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            h1 {
                font-size: 1.9rem;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .stat-panel {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .stat-item, .stat-item:nth-child(even) {
                border-right: none;
                padding: 0;
                padding-bottom: 0.5rem;
            }
            .cta-inner {
                padding: 1.5rem;
            }
        }

/* roulang page: category3 */
:root {
            --bg-dark: #08090F;
            --bg-navy: #0D111E;
            --primary-electric: #0052FF;
            --primary-cyan: #00F0FF;
            --text-white: #FFFFFF;
            --text-silver: #CBD5E1;
            --text-muted: #94A3B8;
            --border-glow: rgba(0, 240, 255, 0.35);
            --glass-bg: rgba(13, 17, 30, 0.72);
            --glass-border: rgba(255, 255, 255, 0.08);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-glow: 0 0 25px rgba(0, 240, 255, 0.35);
            --shadow-electric: 0 0 18px rgba(0, 82, 255, 0.45);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-dark);
            color: var(--text-white);
            line-height: 1.6;
            overflow-x: hidden;
        }

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

        a {
            color: var(--primary-cyan);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover,
        a:focus {
            color: var(--text-white);
            outline: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 1rem;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(8, 9, 15, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-white);
            letter-spacing: 0.5px;
        }

        .logo:hover,
        .logo:focus {
            color: var(--primary-cyan);
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary-electric), var(--primary-cyan));
            border-radius: 50%;
            font-size: 1.2rem;
            color: #fff;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 1.75rem;
        }

        .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-silver);
            position: relative;
            padding: 0.35rem 0;
            letter-spacing: 0.3px;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-electric), var(--primary-cyan));
            transition: width var(--transition);
        }

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

        .nav-link.active {
            color: var(--primary-cyan);
            font-weight: 600;
        }

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

        .btn-text {
            padding: 0.5rem 1rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-silver);
            border-radius: 20px;
            transition: var(--transition);
        }

        .btn-text:hover,
        .btn-text:focus {
            color: var(--primary-cyan);
            background: rgba(0, 240, 255, 0.08);
        }

        .btn-solid {
            padding: 0.5rem 1.25rem;
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--primary-electric), var(--primary-cyan));
            border-radius: 20px;
            box-shadow: var(--shadow-electric);
            transition: var(--transition);
        }

        .btn-solid:hover,
        .btn-solid:focus {
            color: #fff;
            box-shadow: 0 0 25px rgba(0, 82, 255, 0.7);
            transform: translateY(-1px);
        }

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

        /* Hero Section */
        .hero {
            padding: 8rem 0 4rem;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            position: relative;
            isolation: isolate;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(8, 9, 15, 0.85) 0%, rgba(13, 17, 30, 0.92) 100%);
            z-index: -1;
        }

        .hero-heading {
            text-align: center;
            margin-bottom: 2rem;
        }

        .hero-heading h1 {
            font-size: 2.8rem;
            line-height: 1.2;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 1rem;
            background: linear-gradient(90deg, #fff, var(--primary-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-heading p {
            font-size: 1.15rem;
            color: var(--text-silver);
            max-width: 700px;
            margin: 0 auto;
        }

        .hero-stage {
            display: grid;
            grid-template-columns: 1fr 1.4fr 1fr;
            gap: 2rem;
            align-items: center;
            margin-top: 2.5rem;
        }

        .value-points {
            display: flex;
            flex-direction: column;
            gap: 1.25rem;
        }

        .value-point {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            padding: 0.75rem 1rem;
            background: var(--glass-bg);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            transition: var(--transition);
        }

        .value-point:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        .value-point i {
            font-size: 1.3rem;
            color: var(--primary-cyan);
            width: 24px;
            text-align: center;
        }

        .value-point span {
            font-size: 0.95rem;
            color: var(--text-silver);
            line-height: 1.4;
        }

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

        .screenshot-stage {
            width: 100%;
            max-width: 480px;
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: 1rem;
            box-shadow: var(--shadow-glow), 0 0 40px rgba(0, 82, 255, 0.3);
            transition: var(--transition);
        }

        .screenshot-stage:hover {
            box-shadow: 0 0 35px rgba(0, 240, 255, 0.55), 0 0 60px rgba(0, 82, 255, 0.4);
            transform: scale(1.01);
        }

        .screenshot-stage img {
            border-radius: var(--radius-md);
            width: 100%;
            height: auto;
        }

        .hero-cta-group {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin-top: 2rem;
            flex-wrap: wrap;
        }

        .btn-glow {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.8rem 1.8rem;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 30px;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }

        .btn-glow-primary {
            background: linear-gradient(135deg, var(--primary-electric), var(--primary-cyan));
            color: #fff;
            box-shadow: var(--shadow-electric);
        }

        .btn-glow-primary:hover {
            box-shadow: 0 0 30px rgba(0, 82, 255, 0.7);
            transform: translateY(-2px);
        }

        .btn-glow-outline {
            background: transparent;
            color: var(--primary-cyan);
            border: 1px solid var(--primary-cyan);
            box-shadow: inset 0 0 10px rgba(0, 240, 255, 0.2);
        }

        .btn-glow-outline:hover {
            background: rgba(0, 240, 255, 0.1);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.5);
            transform: translateY(-2px);
        }

        /* Content Sections */
        .section {
            padding: 4rem 0;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: -0.3px;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            color: var(--text-white);
        }

        .section-description {
            font-size: 1.1rem;
            color: var(--text-silver);
            max-width: 750px;
            line-height: 1.7;
        }

        .text-left {
            text-align: left;
        }

        /* Metrics Dashboard */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            margin-top: 2.5rem;
        }

        .metric-card {
            background: var(--glass-bg);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            text-align: center;
            transition: var(--transition);
        }

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

        .metric-value {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-cyan);
            line-height: 1.2;
            margin-bottom: 0.5rem;
            text-shadow: 0 0 20px rgba(0, 240, 255, 0.2);
        }

        .metric-label {
            font-size: 0.95rem;
            color: var(--text-silver);
            letter-spacing: 0.3px;
        }

        /* Service Matrix */
        .service-matrix {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
            margin-top: 2.5rem;
        }

        .service-card {
            background: var(--glass-bg);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            transition: var(--transition);
        }

        .service-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow);
        }

        .service-card.wide {
            grid-column: 1 / -1;
        }

        .service-card h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
            color: var(--text-white);
        }

        .service-card p {
            color: var(--text-silver);
            font-size: 1rem;
            line-height: 1.7;
        }

        .service-card ul {
            margin-top: 1rem;
            list-style: none;
        }

        .service-card ul li {
            padding-left: 1.5rem;
            position: relative;
            margin-bottom: 0.5rem;
            color: var(--text-silver);
        }

        .service-card ul li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            color: var(--primary-cyan);
        }

        /* Results Comparison */
        .comparison-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin-top: 2.5rem;
        }

        .comparison-card {
            background: var(--glass-bg);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
        }

        .comparison-card.before {
            border-left: 4px solid #FF5252;
        }

        .comparison-card.after {
            border-left: 4px solid var(--primary-cyan);
            box-shadow: var(--shadow-glow);
        }

        .comparison-card h3 {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        .comparison-card ul {
            list-style: none;
        }

        .comparison-card ul li {
            padding: 0.5rem 0;
            padding-left: 1.8rem;
            position: relative;
            color: var(--text-silver);
        }

        .comparison-card.before ul li::before {
            content: '\f00d';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            color: #FF5252;
        }

        .comparison-card.after ul li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            color: var(--primary-cyan);
        }

        /* FAQ */
        .faq-list {
            margin-top: 2.5rem;
        }

        .accordion-item {
            background: var(--glass-bg);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            overflow: hidden;
        }

        .accordion-title {
            padding: 1rem 1.5rem;
            font-weight: 600;
            color: var(--text-white);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }

        .accordion-title:hover {
            background: rgba(0, 240, 255, 0.05);
        }

        .accordion-title i {
            transition: transform var(--transition);
        }

        .accordion-title[aria-expanded="true"] i {
            transform: rotate(180deg);
        }

        .accordion-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            background: rgba(13, 17, 30, 0.5);
        }

        .accordion-content p {
            padding: 1rem 1.5rem;
            color: var(--text-silver);
            line-height: 1.7;
        }

        /* Conversion Form */
        .conversion-section {
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.1), rgba(0, 240, 255, 0.05));
            border-top: 1px solid var(--glass-border);
            border-bottom: 1px solid var(--glass-border);
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin-top: 2rem;
            align-items: center;
        }

        .form-info h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .form-info p {
            color: var(--text-silver);
            line-height: 1.7;
        }

        .payment-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 1.5rem;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.4rem 1rem;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--glass-border);
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--text-silver);
        }

        .badge i {
            color: var(--primary-cyan);
        }

        .form-box {
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 2rem;
            box-shadow: var(--shadow-glow);
        }

        .form-box label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
            color: var(--text-silver);
        }

        .form-box input,
        .form-box textarea {
            width: 100%;
            padding: 0.75rem 1rem;
            background: rgba(0, 0, 0, 0.3);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-sm);
            color: var(--text-white);
            outline: none;
            transition: var(--transition);
            margin-bottom: 1rem;
        }

        .form-box input:focus,
        .form-box textarea:focus {
            border-color: var(--primary-cyan);
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
        }

        .form-box textarea {
            min-height: 100px;
            resize: vertical;
        }

        .btn-submit {
            width: 100%;
            padding: 0.8rem;
            font-size: 1rem;
            font-weight: 600;
            background: linear-gradient(135deg, var(--primary-electric), var(--primary-cyan));
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            cursor: pointer;
            box-shadow: var(--shadow-electric);
            transition: var(--transition);
        }

        .btn-submit:hover {
            box-shadow: 0 0 25px rgba(0, 82, 255, 0.7);
            transform: translateY(-1px);
        }

        /* Footer */
        .site-footer {
            background: rgba(8, 9, 15, 0.95);
            border-top: 1px solid var(--glass-border);
            padding: 3rem 0 1.5rem;
            margin-top: 0;
        }

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

        .footer-brand .footer-logo {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 1rem;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
        }

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

        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--primary-cyan);
        }

        .footer-disclaimer {
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--glass-border);
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .footer-bottom {
            margin-top: 1rem;
            padding-top: 1rem;
            border-top: 1px solid var(--glass-border);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.5rem;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* FAB */
        .fab {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            position: relative;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
            transition: var(--transition);
            animation: fabPulse 2.5s infinite;
        }

        .fab::before {
            content: '';
            position: absolute;
            top: -2px;
            bottom: -2px;
            left: -2px;
            right: -2px;
            background: linear-gradient(135deg, var(--primary-electric), var(--primary-cyan));
            border-radius: 50%;
            z-index: -1;
            animation: fabBorder 4s linear infinite;
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 35px rgba(0, 240, 255, 0.8);
        }

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

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

        .fab .notification-dot {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 16px;
            height: 16px;
            background: #FF5252;
            border-radius: 50%;
            border: 2px solid var(--bg-dark);
            animation: blink 1.5s infinite;
        }

        @keyframes fabPulse {
            0%, 100% { opacity: 0.7; }
            50% { opacity: 1; }
        }

        @keyframes fabBorder {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-stage {
                grid-template-columns: 1fr 1.2fr 1fr;
                gap: 1.5rem;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .menu-toggle {
                display: block;
                order: 3;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                background: rgba(8, 9, 15, 0.98);
                padding: 1rem;
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                margin-top: 0.5rem;
            }
            .main-nav.is-open {
                display: flex;
            }
            .nav-auth {
                display: flex;
                order: 2;
            }
            .logo {
                order: 1;
            }
            .hero {
                padding: 6rem 0 3rem;
            }
            .hero-heading h1 {
                font-size: 2rem;
            }
            .hero-stage {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .value-points {
                flex-direction: row;
                flex-wrap: wrap;
                justify-content: center;
            }
            .value-point {
                width: calc(50% - 0.75rem);
                min-width: 200px;
            }
            .service-matrix {
                grid-template-columns: 1fr;
            }
            .comparison-wrapper {
                grid-template-columns: 1fr;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 0.8rem;
                padding-right: 0.8rem;
            }
            .header-inner {
                height: auto;
                min-height: 60px;
                padding: 0.5rem 0;
            }
            .logo {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 1rem;
            }
            .nav-auth .btn-text,
            .nav-auth .btn-solid {
                padding: 0.4rem 0.8rem;
                font-size: 0.8rem;
            }
            .hero-heading h1 {
                font-size: 1.6rem;
            }
            .hero-heading p {
                font-size: 1rem;
            }
            .value-point {
                width: 100%;
                min-width: 0;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .metric-card {
                padding: 1.2rem;
            }
            .btn-glow {
                padding: 0.7rem 1.4rem;
                font-size: 0.9rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .fab {
                width: 48px;
                height: 48px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-deep: #08090F;
            --bg-navy: #0D111E;
            --bg-panel: rgba(13, 17, 30, 0.82);
            --electric-blue: #0052FF;
            --neon-cyan: #00F0FF;
            --white: #FFFFFF;
            --cool-silver: #CBD5E1;
            --muted-blue: #6F7FA8;
            --border-cyan: rgba(0, 240, 255, 0.28);
            --border-blue: rgba(0, 82, 255, 0.5);
            --glass-bg: rgba(8, 9, 15, 0.66);
            --glass-border: rgba(0, 240, 255, 0.18);
            --shadow-cyan: 0 0 18px rgba(0, 240, 255, 0.35);
            --shadow-blue: 0 0 24px rgba(0, 82, 255, 0.4);
            --radius-sm: 14px;
            --radius-md: 22px;
            --radius-lg: 32px;
            --space-1: 8px;
            --space-2: 16px;
            --space-3: 24px;
            --space-4: 40px;
            --space-5: 64px;
            --space-6: 88px;
            --accent-gold: #2EC4B6;
            --font-main: 'Be Vietnam Pro', 'Segoe UI', Arial, sans-serif;
        }

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

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

        body {
            margin: 0;
            font-family: var(--font-main);
            color: var(--white);
            background: radial-gradient(circle at 18% 12%, rgba(0, 82, 255, 0.18), transparent 34%),
                radial-gradient(circle at 85% 6%, rgba(0, 240, 255, 0.12), transparent 32%),
                linear-gradient(135deg, #08090F 0%, #0D111E 52%, #0A1224 100%);
            line-height: 1.6;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
            position: relative;
        }

        body::before {
            content: "";
            position: fixed;
            inset: 0;
            pointer-events: none;
            background-image:
                linear-gradient(rgba(0, 240, 255, 0.035) 1px, transparent 1px),
                linear-gradient(90deg, rgba(0, 240, 255, 0.035) 1px, transparent 1px);
            background-size: 44px 44px;
            z-index: 0;
            opacity: 0.7;
        }

        a {
            color: var(--neon-cyan);
            text-decoration: none;
            transition: color 0.2s ease, border-color 0.2s ease, opacity 0.2s ease;
        }

        a:hover {
            color: var(--white);
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 1rem;
            line-height: 1.4;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px dashed var(--neon-cyan);
            outline-offset: 3px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
            position: relative;
            z-index: 2;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 60;
            background: rgba(8, 9, 15, 0.72);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.16);
            transition: background 0.25s ease, box-shadow 0.25s ease;
        }

        .site-header.scrolled {
            background: rgba(8, 9, 15, 0.9);
            box-shadow: 0 10px 28px rgba(0, 0, 0, 0.32);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 78px;
            gap: 20px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--white);
            font-weight: 800;
            font-size: 1.3rem;
            letter-spacing: 0.02em;
            flex-shrink: 0;
        }

        .brand .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--electric-blue), var(--neon-cyan));
            color: #08090F;
            font-size: 1.2rem;
            box-shadow: 0 0 16px rgba(0, 240, 255, 0.35);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 10px 14px;
            border-radius: 999px;
            color: var(--cool-silver);
            font-weight: 600;
            font-size: 0.92rem;
            letter-spacing: 0.01em;
            transition: all 0.22s ease;
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--white);
            background: rgba(0, 240, 255, 0.08);
            border-color: rgba(0, 240, 255, 0.18);
        }

        .nav-link.active {
            color: #05070F;
            background: linear-gradient(135deg, var(--neon-cyan), #7AD7FF);
            border-color: transparent;
            box-shadow: 0 0 18px rgba(0, 240, 255, 0.45);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 14px;
            border-radius: 12px;
            color: var(--cool-silver);
            font-weight: 700;
            font-size: 0.9rem;
            transition: all 0.2s ease;
            border: 1px solid transparent;
        }

        .btn-ghost:hover {
            color: var(--white);
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(255, 255, 255, 0.12);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: linear-gradient(135deg, #0052FF 0%, #007AFF 55%, #00C6FF 100%);
            color: #FFFFFF;
            font-weight: 800;
            border-radius: 14px;
            padding: 11px 20px;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            box-shadow: 0 0 18px rgba(0, 82, 255, 0.45);
            transition: all 0.2s ease;
            text-align: center;
            white-space: nowrap;
        }

        .btn-primary:hover {
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 0 26px rgba(0, 150, 255, 0.65);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 16px rgba(0, 82, 255, 0.4);
        }

        .btn-glow {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 26px;
            border-radius: 16px;
            background: linear-gradient(135deg, #00F0FF 0%, #0052FF 100%);
            color: #05070F;
            font-weight: 800;
            font-size: 1rem;
            border: none;
            box-shadow: 0 0 24px rgba(0, 240, 255, 0.5), 0 0 48px rgba(0, 82, 255, 0.35);
            transition: all 0.22s ease;
            cursor: pointer;
            text-align: center;
        }

        .btn-glow:hover {
            transform: translateY(-3px);
            color: #05070F;
            box-shadow: 0 0 32px rgba(0, 240, 255, 0.7), 0 0 60px rgba(0, 82, 255, 0.5);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 13px 24px;
            border-radius: 16px;
            background: rgba(0, 240, 255, 0.04);
            color: var(--cool-silver);
            font-weight: 700;
            font-size: 1rem;
            border: 1px solid rgba(0, 240, 255, 0.3);
            transition: all 0.22s ease;
            cursor: pointer;
        }

        .btn-outline:hover {
            color: var(--white);
            background: rgba(0, 240, 255, 0.1);
            border-color: rgba(0, 240, 255, 0.6);
            transform: translateY(-2px);
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border: 1px solid rgba(0, 240, 255, 0.25);
            border-radius: 12px;
            background: rgba(8, 9, 15, 0.7);
            cursor: pointer;
            position: relative;
            z-index: 61;
        }

        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--white);
            margin: 4px auto;
            border-radius: 2px;
            transition: all 0.25s ease;
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }

        .hero-category {
            position: relative;
            padding: 148px 0 84px;
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            overflow: hidden;
            border-bottom: 1px solid rgba(0, 240, 255, 0.12);
        }

        .hero-category::after {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 22% 18%, rgba(0, 82, 255, 0.28), transparent 32%),
                radial-gradient(circle at 82% 28%, rgba(0, 240, 255, 0.18), transparent 34%);
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content {
            max-width: 680px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid rgba(0, 240, 255, 0.25);
            color: var(--neon-cyan);
            padding: 7px 14px;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            margin-bottom: 18px;
        }

        .hero-title {
            font-size: 3.15rem;
            line-height: 1.18;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin: 0 0 18px;
            color: var(--white);
            max-width: 700px;
        }

        .hero-title span {
            background: linear-gradient(90deg, var(--neon-cyan), #7AD7FF);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-sub {
            color: var(--cool-silver);
            font-size: 1.08rem;
            line-height: 1.65;
            margin: 0 0 28px;
            max-width: 620px;
        }

        .hero-cta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 22px;
        }

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 14px 22px;
            color: #A5B4D0;
            font-size: 0.9rem;
        }

        .hero-trust i {
            color: var(--neon-cyan);
            margin-right: 4px;
        }

        .glass-panel {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-radius: var(--radius-lg);
            box-shadow: 0 22px 60px rgba(0, 0, 0, 0.32);
        }

        .hero-visual {
            padding: 30px 28px;
            position: relative;
            overflow: hidden;
        }

        .hero-visual::before {
            content: "";
            position: absolute;
            inset: -2px;
            border-radius: inherit;
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.5), transparent 40%, rgba(0, 82, 255, 0.35));
            opacity: 0.55;
            pointer-events: none;
            mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            mask-composite: exclude;
            -webkit-mask-composite: xor;
        }

        .hero-visual .launch-block {
            position: relative;
            z-index: 2;
            text-align: left;
        }

        .launch-eyebrow {
            color: #A5B4D0;
            font-size: 0.88rem;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            font-weight: 700;
            margin-bottom: 16px;
            display: block;
        }

        .countdown-wrap {
            display: flex;
            align-items: center;
            gap: 28px;
            flex-wrap: wrap;
            margin-bottom: 22px;
        }

        .countdown-ring {
            --progress: 0deg;
            width: 150px;
            height: 150px;
            border-radius: 50%;
            background: conic-gradient(var(--neon-cyan) var(--progress), rgba(0, 240, 255, 0.1) 0deg);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            box-shadow: 0 0 24px rgba(0, 240, 255, 0.3);
            flex-shrink: 0;
        }

        .countdown-ring::after {
            content: "";
            position: absolute;
            inset: 8px;
            border-radius: 50%;
            background: #0A1224;
            z-index: 1;
        }

        .countdown-inner {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .countdown-inner .value {
            display: block;
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--white);
            line-height: 1.1;
        }

        .countdown-inner .unit {
            color: var(--neon-cyan);
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        .countdown-details {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
            margin: 8px 0 18px;
        }

        .countdown-details .time-box {
            background: rgba(0, 240, 255, 0.05);
            border: 1px solid rgba(0, 240, 255, 0.16);
            border-radius: 14px;
            padding: 8px 10px;
            text-align: center;
        }

        .time-box .num {
            display: block;
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--white);
        }

        .time-box .label {
            color: #8A9BC0;
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .selling-points {
            margin-top: 12px;
        }

        .point {
            color: var(--cool-silver);
            font-size: 1rem;
            line-height: 1.5;
            margin: 0;
            min-height: 48px;
            opacity: 0;
            transform: translateY(8px);
            transition: opacity 0.3s ease, transform 0.3s ease;
            position: absolute;
        }

        .point.active {
            position: relative;
            opacity: 1;
            transform: translateY(0);
        }

        .carousel-dots {
            display: flex;
            gap: 8px;
            margin-top: 18px;
        }

        .dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: rgba(0, 240, 255, 0.25);
            transition: all 0.2s ease;
            cursor: pointer;
        }

        .dot.active {
            background: var(--neon-cyan);
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.55);
            width: 26px;
            border-radius: 999px;
        }

        .metrics-section {
            padding: 84px 0;
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
        }

        .section-head {
            max-width: 760px;
            margin-bottom: 40px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--neon-cyan);
            font-size: 0.82rem;
            font-weight: 800;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-head h2 {
            font-size: 2.15rem;
            font-weight: 800;
            line-height: 1.25;
            margin: 0 0 12px;
            letter-spacing: -0.01em;
            color: var(--white);
        }

        .section-head p {
            color: var(--cool-silver);
            font-size: 1rem;
            line-height: 1.65;
            margin: 0;
        }

        .metric-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }

        .metric-card {
            background: rgba(13, 17, 30, 0.72);
            border: 1px solid rgba(0, 240, 255, 0.14);
            border-radius: 22px;
            padding: 24px 22px;
            transition: all 0.22s ease;
            position: relative;
            overflow: hidden;
        }

        .metric-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--electric-blue), var(--neon-cyan));
            opacity: 0.6;
        }

        .metric-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 240, 255, 0.4);
            box-shadow: 0 0 24px rgba(0, 82, 255, 0.2);
        }

        .metric-icon {
            width: 46px;
            height: 46px;
            border-radius: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid rgba(0, 240, 255, 0.2);
            color: var(--neon-cyan);
            font-size: 1.3rem;
            margin-bottom: 14px;
        }

        .metric-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--white);
            letter-spacing: -0.02em;
            margin-bottom: 4px;
        }

        .metric-number small {
            font-size: 1rem;
            font-weight: 700;
            color: var(--neon-cyan);
        }

        .metric-label {
            color: #A5B4D0;
            font-size: 0.95rem;
            font-weight: 600;
            margin: 0;
        }

        .service-section {
            padding: 84px 0;
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
        }

        .service-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .service-card {
            background: rgba(13, 17, 30, 0.7);
            border: 1px solid rgba(0, 240, 255, 0.16);
            border-radius: 26px;
            overflow: hidden;
            transition: all 0.22s ease;
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 240, 255, 0.42);
            box-shadow: 0 0 26px rgba(0, 82, 255, 0.23);
        }

        .service-card-image {
            height: 200px;
            overflow: hidden;
            background: #0A1224;
        }

        .service-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .service-card:hover .service-card-image img {
            transform: scale(1.04);
        }

        .service-card-body {
            padding: 24px 24px 26px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .service-card-body h3 {
            font-size: 1.4rem;
            font-weight: 800;
            margin: 0 0 10px;
            color: var(--white);
            letter-spacing: -0.01em;
        }

        .service-card-body p {
            color: var(--cool-silver);
            font-size: 0.98rem;
            line-height: 1.6;
            margin: 0 0 16px;
            flex: 1;
        }

        .service-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--neon-cyan);
            font-weight: 700;
            font-size: 0.95rem;
            transition: color 0.2s ease;
        }

        .service-link i {
            transition: transform 0.2s ease;
        }

        .service-link:hover {
            color: var(--white);
        }

        .service-link:hover i {
            transform: translateX(4px);
        }

        .compare-section {
            padding: 84px 0;
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
        }

        .compare-block {
            padding: 32px 30px;
            background: rgba(13, 17, 30, 0.68);
            border: 1px solid rgba(0, 240, 255, 0.14);
            border-radius: 28px;
        }

        .compare-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .compare-item {
            background: rgba(0, 240, 255, 0.04);
            border: 1px solid rgba(0, 240, 255, 0.12);
            border-radius: 18px;
            padding: 18px;
            transition: all 0.2s ease;
        }

        .compare-item:hover {
            background: rgba(0, 240, 255, 0.07);
            border-color: rgba(0, 240, 255, 0.3);
        }

        .compare-title {
            color: var(--white);
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .compare-title i {
            color: var(--neon-cyan);
        }

        .bar-track {
            height: 8px;
            background: rgba(0, 240, 255, 0.1);
            border-radius: 999px;
            overflow: hidden;
            margin: 8px 0 6px;
        }

        .bar-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--electric-blue), var(--neon-cyan));
            border-radius: 999px;
            width: 0%;
            transition: width 0.5s ease;
        }

        .bar-values {
            display: flex;
            justify-content: space-between;
            color: #8A9BC0;
            font-size: 0.85rem;
        }

        .faq-section {
            padding: 84px 0;
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
        }

        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: rgba(13, 17, 30, 0.62);
            border: 1px solid rgba(0, 240, 255, 0.14);
            border-radius: 20px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: all 0.2s ease;
        }

        .faq-item[open] {
            background: rgba(13, 17, 30, 0.82);
            border-color: rgba(0, 240, 255, 0.38);
            box-shadow: 0 0 22px rgba(0, 82, 255, 0.14);
        }

        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 18px 22px;
            cursor: pointer;
            color: var(--white);
            font-weight: 700;
            font-size: 1.04rem;
            letter-spacing: 0.01em;
            transition: color 0.2s ease;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 240, 255, 0.08);
            color: var(--neon-cyan);
            transition: transform 0.25s ease;
        }

        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
            background: rgba(0, 240, 255, 0.16);
        }

        .faq-answer {
            padding: 0 22px 20px;
            color: var(--cool-silver);
            line-height: 1.65;
            font-size: 0.96rem;
            border-top: 1px solid rgba(0, 240, 255, 0.1);
            margin-top: 4px;
            padding-top: 14px;
        }

        .cta-section {
            padding: 84px 0 100px;
        }

        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            padding: 38px 36px;
            background: rgba(13, 17, 30, 0.7);
            border: 1px solid rgba(0, 240, 255, 0.2);
            border-radius: 30px;
            align-items: center;
            box-shadow: 0 0 30px rgba(0, 82, 255, 0.22);
        }

        .cta-info h2 {
            font-size: 2rem;
            font-weight: 800;
            margin: 0 0 14px;
            letter-spacing: -0.01em;
            line-height: 1.3;
        }

        .cta-info p {
            color: var(--cool-silver);
            font-size: 1rem;
            line-height: 1.65;
            margin: 0 0 18px;
        }

        .cta-benefit {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #A5B4D0;
            margin-bottom: 10px;
            font-size: 0.95rem;
        }

        .cta-benefit i {
            color: var(--neon-cyan);
        }

        .cta-form {
            background: rgba(8, 9, 15, 0.55);
            border: 1px solid rgba(0, 240, 255, 0.18);
            border-radius: 22px;
            padding: 24px;
        }

        .cta-form label {
            color: #CBD5E1;
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 6px;
            display: block;
        }

        .form-field {
            margin-bottom: 16px;
        }

        .form-field input,
        .form-field select {
            width: 100%;
            padding: 12px 14px;
            border-radius: 14px;
            border: 1px solid rgba(0, 240, 255, 0.25);
            background: rgba(8, 9, 15, 0.72);
            color: var(--white);
            font-weight: 500;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .form-field input::placeholder {
            color: #8A9BC0;
        }

        .form-field input:focus,
        .form-field select:focus {
            border-color: var(--neon-cyan);
            box-shadow: 0 0 14px rgba(0, 240, 255, 0.25);
            outline: none;
        }

        .form-submit {
            width: 100%;
            padding: 14px 20px;
            border-radius: 16px;
            border: none;
            background: linear-gradient(135deg, var(--electric-blue), var(--neon-cyan));
            color: #05070F;
            font-weight: 800;
            font-size: 1rem;
            cursor: pointer;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.45);
            transition: all 0.22s ease;
        }

        .form-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.6);
        }

        .form-note {
            text-align: center;
            color: #8A9BC0;
            font-size: 0.85rem;
            margin-top: 12px;
        }

        .site-footer {
            background: #070A12;
            border-top: 1px solid rgba(0, 240, 255, 0.16);
            padding: 56px 0 24px;
            color: var(--cool-silver);
            position: relative;
            z-index: 2;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.3fr;
            gap: 34px;
            margin-bottom: 30px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 12px;
        }

        .footer-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 13px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--electric-blue), var(--neon-cyan));
            color: #08090F;
            font-size: 1.1rem;
        }

        .footer-brand p {
            line-height: 1.6;
            font-size: 0.92rem;
            color: #A5B4D0;
            margin: 0;
            max-width: 300px;
        }

        .footer-col h4 {
            color: var(--white);
            font-size: 1rem;
            font-weight: 700;
            margin: 0 0 16px;
            letter-spacing: 0.02em;
        }

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

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

        .footer-col a {
            color: #A5B4D0;
            font-size: 0.92rem;
            transition: color 0.2s ease;
            display: inline-flex;
            align-items: center;
        }

        .footer-col a:hover {
            color: var(--neon-cyan);
        }

        .footer-disclaimer {
            border-top: 1px solid rgba(0, 240, 255, 0.12);
            padding-top: 20px;
            margin-bottom: 20px;
            font-size: 0.85rem;
            color: #8A9BC0;
            line-height: 1.6;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 14px;
            align-items: center;
            color: #7C8DB0;
            font-size: 0.85rem;
        }

        .footer-bottom a {
            color: #A5B4D0;
            margin-left: 18px;
        }

        .footer-bottom a:hover {
            color: var(--neon-cyan);
        }

        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 34px;
            }

            .hero-title {
                font-size: 2.6rem;
            }

            .hero-visual {
                max-width: 580px;
            }

            .metric-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .service-grid {
                grid-template-columns: 1fr;
            }

            .compare-list {
                grid-template-columns: 1fr;
            }

            .cta-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 820px) {
            .header-inner {
                min-height: 68px;
                flex-wrap: wrap;
            }

            .brand {
                font-size: 1.1rem;
            }

            .header-actions {
                gap: 8px;
            }

            .btn-ghost {
                padding: 8px 10px;
                font-size: 0.82rem;
            }

            .btn-primary {
                padding: 9px 14px;
                font-size: 0.85rem;
            }

            .nav-toggle {
                display: block;
                order: 3;
            }

            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                order: 4;
                background: rgba(8, 9, 15, 0.95);
                border: 1px solid rgba(0, 240, 255, 0.18);
                border-radius: 16px;
                padding: 14px;
                gap: 6px;
                margin-top: 8px;
                box-shadow: 0 18px 40px rgba(0, 0, 0, 0.4);
            }

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

            .nav-link {
                width: 100%;
                justify-content: center;
                padding: 12px 16px;
                font-size: 0.95rem;
            }

            .hero-category {
                padding: 124px 0 64px;
            }

            .hero-title {
                font-size: 2.2rem;
            }

            .hero-sub {
                font-size: 1rem;
            }

            .hero-cta {
                flex-direction: column;
                align-items: flex-start;
            }

            .btn-glow,
            .btn-outline {
                width: 100%;
                justify-content: center;
            }

            .section-head h2 {
                font-size: 1.8rem;
            }

            .countdown-details {
                grid-template-columns: repeat(3, 1fr);
                gap: 10px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .brand .brand-text {
                font-size: 1.05rem;
            }

            .header-actions .btn-ghost {
                display: inline-flex;
            }

            .header-actions .btn-primary {
                display: inline-flex;
            }

            .hero-title {
                font-size: 1.9rem;
            }

            .metric-grid {
                grid-template-columns: 1fr;
            }

            .cta-grid {
                padding: 26px 18px;
            }

            .countdown-ring {
                width: 130px;
                height: 130px;
            }

            .countdown-inner .value {
                font-size: 2rem;
            }

            .countdown-details {
                grid-template-columns: 1fr 1fr 1fr;
                gap: 8px;
            }

            .time-box .num {
                font-size: 1.1rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }

            .footer-bottom a {
                margin-left: 0;
                margin-right: 14px;
            }
        }