/* roulang page: index */
:root {
            --bg-primary: #08090F;
            --bg-secondary: #0D111E;
            --bg-card: #121624;
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --text-white: #FFFFFF;
            --text-silver: #CBD5E1;
            --text-muted: #8892A6;
            --border-glow: rgba(0, 240, 255, 0.35);
            --border-subtle: rgba(255, 255, 255, 0.08);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.35);
            --shadow-blue: 0 0 20px rgba(0, 82, 255, 0.45);
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --spacing-section: 5rem;
            --spacing-inner: 2.5rem;
            --font-body: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --font-display: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-medium: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: var(--font-body);
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.65;
            overflow-x: hidden;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        a:hover,
        a:focus {
            color: var(--accent-cyan);
            outline: none;
        }

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

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

        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        /* ===== HEADER / NAV ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(8, 9, 15, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            transition: var(--transition-medium);
        }

        .site-header.scrolled {
            background: rgba(8, 9, 15, 0.97);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 1.5rem;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-weight: 800;
            font-size: 1.25rem;
            letter-spacing: -0.02em;
            color: var(--text-white);
            white-space: nowrap;
        }

        .nav-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            border-radius: 12px;
            color: #fff;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        .nav-logo .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.1;
        }

        .nav-logo .logo-text .brand-main {
            font-size: 1.05rem;
            font-weight: 800;
            background: linear-gradient(90deg, #fff, #CBD5E1);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-logo .logo-text .brand-sub {
            font-size: 0.7rem;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.35rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: block;
            padding: 0.55rem 1rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-silver);
            border-radius: 10px;
            transition: var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links li a:hover,
        .nav-links li a:focus {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.06);
        }

        .nav-links li a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.2);
        }

        .nav-auth {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }

        .btn-login {
            padding: 0.55rem 1.15rem;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-white);
            background: transparent;
            border: none;
            border-radius: 10px;
            cursor: pointer;
            transition: var(--transition-fast);
            white-space: nowrap;
        }

        .btn-login:hover,
        .btn-login:focus {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.06);
        }

        .btn-signup {
            padding: 0.55rem 1.3rem;
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-blue), #0052CC);
            border: none;
            border-radius: 10px;
            cursor: pointer;
            transition: var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(0, 82, 255, 0.35);
        }

        .btn-signup:hover,
        .btn-signup:focus {
            background: linear-gradient(135deg, #0066FF, var(--accent-cyan));
            box-shadow: 0 6px 20px rgba(0, 240, 255, 0.4);
            transform: translateY(-1px);
            color: #fff;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-white);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.5rem;
            border-radius: 8px;
            transition: var(--transition-fast);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.06);
        }

        /* Mobile nav */
        @media (max-width: 900px) {
            .nav-links {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                background: rgba(8, 9, 15, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                padding: 1.5rem;
                gap: 0.5rem;
                border-bottom: 1px solid var(--border-subtle);
                transform: translateY(-150%);
                opacity: 0;
                transition: var(--transition-medium);
                z-index: 999;
            }

            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
            }

            .nav-links li a {
                padding: 0.9rem 1.2rem;
                font-size: 1rem;
                border-radius: 12px;
            }

            .nav-toggle {
                display: block;
            }

            .nav-auth {
                gap: 0.5rem;
            }

            .btn-login {
                padding: 0.5rem 0.9rem;
                font-size: 0.85rem;
            }

            .btn-signup {
                padding: 0.5rem 0.9rem;
                font-size: 0.85rem;
            }

            .nav-logo .logo-text .brand-sub {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .nav-logo .logo-text .brand-main {
                font-size: 0.85rem;
            }
            .nav-logo .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }
            .btn-login {
                padding: 0.45rem 0.7rem;
                font-size: 0.8rem;
            }
            .btn-signup {
                padding: 0.45rem 0.7rem;
                font-size: 0.8rem;
            }
        }

        /* ===== HERO - Product Stage Centered ===== */
        .hero-section {
            padding-top: 130px;
            padding-bottom: 4rem;
            position: relative;
            overflow: hidden;
            background: radial-gradient(ellipse at 50% 20%, rgba(0, 82, 255, 0.2), transparent 60%),
                radial-gradient(ellipse at 80% 60%, rgba(0, 240, 255, 0.08), transparent 50%);
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            pointer-events: none;
        }

        .hero-stage {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 850px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem 1.2rem;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.3);
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-cyan);
            margin-bottom: 1.5rem;
            letter-spacing: 0.02em;
        }

        .hero-badge .badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-cyan);
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.5); }
        }

        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 1.5rem;
            background: linear-gradient(135deg, #FFFFFF 30%, #CBD5E1 60%, #00F0FF 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.1rem;
            line-height: 1.7;
            color: var(--text-silver);
            max-width: 650px;
            margin: 0 auto 2rem;
        }

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

        .btn-hero-primary {
            padding: 0.85rem 2rem;
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-blue), #0052CC);
            border: none;
            border-radius: 12px;
            cursor: pointer;
            transition: var(--transition-fast);
            box-shadow: var(--shadow-blue);
            white-space: nowrap;
        }

        .btn-hero-primary:hover,
        .btn-hero-primary:focus {
            background: linear-gradient(135deg, #0066FF, var(--accent-cyan));
            box-shadow: var(--shadow-neon);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-hero-secondary {
            padding: 0.85rem 2rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-subtle);
            border-radius: 12px;
            cursor: pointer;
            transition: var(--transition-fast);
            white-space: nowrap;
        }

        .btn-hero-secondary:hover,
        .btn-hero-secondary:focus {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }

        .hero-data-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 2rem;
            margin-top: 1rem;
        }

        .hero-data-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.25rem;
        }

        .hero-data-value {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent-cyan);
            letter-spacing: -0.02em;
        }

        .hero-data-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ===== SECTION GENERAL ===== */
        .section {
            padding: var(--spacing-section) 0;
            position: relative;
        }

        .section-alt {
            background: var(--bg-secondary);
        }

        .section-header {
            margin-bottom: 2.5rem;
            text-align: left;
        }

        .section-tag {
            display: inline-block;
            padding: 0.35rem 1rem;
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid rgba(0, 240, 255, 0.25);
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-cyan);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 0.9rem;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 0.75rem;
            color: var(--text-white);
            line-height: 1.25;
        }

        .section-desc {
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-silver);
            max-width: 650px;
        }

        /* ===== VERTICAL SOCIAL FEED SECTION ===== */
        .social-feed-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 3rem;
            align-items: start;
        }

        .social-feed-left {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .social-post-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            transition: var(--transition-medium);
            position: relative;
        }

        .social-post-card:hover {
            border-color: var(--border-glow);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
        }

        .social-post-header {
            display: flex;
            align-items: center;
            gap: 0.85rem;
            margin-bottom: 1rem;
        }

        .social-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            flex-shrink: 0;
        }

        .social-user-info {
            display: flex;
            flex-direction: column;
        }

        .social-user-name {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-white);
        }

        .social-user-time {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .social-post-text {
            font-size: 0.95rem;
            line-height: 1.7;
            color: var(--text-silver);
            margin-bottom: 0.75rem;
        }

        .social-post-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 0.75rem;
        }

        .social-post-image img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

        .social-post-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .social-tag {
            padding: 0.3rem 0.85rem;
            background: rgba(0, 240, 255, 0.08);
            border-radius: 50px;
            font-size: 0.8rem;
            color: var(--accent-cyan);
            font-weight: 500;
        }

        .social-feed-right {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            position: sticky;
            top: 100px;
        }

        .social-proof-card {
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.15), rgba(0, 240, 255, 0.08));
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: 2rem;
            text-align: center;
        }

        .social-proof-number {
            font-size: 3.5rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--accent-cyan), #FFFFFF);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.1;
            margin-bottom: 0.5rem;
        }

        .social-proof-label {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 0.5rem;
        }

        .social-proof-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* ===== HOT LIST SECTION ===== */
        .hotlist-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 1.5rem;
        }

        .hotlist-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            transition: var(--transition-medium);
            display: flex;
            flex-direction: column;
            gap: 0.85rem;
            position: relative;
            overflow: hidden;
        }

        .hotlist-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
            opacity: 0;
            transition: var(--transition-fast);
        }

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

        .hotlist-card:hover {
            border-color: var(--border-glow);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
            transform: translateY(-4px);
        }

        .hotlist-rank {
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-cyan);
        }

        .hotlist-name {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-white);
            line-height: 1.3;
        }

        .hotlist-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
        }

        .hotlist-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.85rem;
            color: var(--text-silver);
        }

        .hotlist-rating {
            display: flex;
            align-items: center;
            gap: 0.35rem;
            color: #FFD700;
            font-weight: 600;
        }

        .hotlist-tag {
            padding: 0.3rem 0.8rem;
            background: rgba(0, 240, 255, 0.1);
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent-cyan);
        }

        /* ===== REVIEW WALL ===== */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.5rem;
        }

        .review-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            transition: var(--transition-medium);
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .review-card:hover {
            border-color: var(--border-glow);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
        }

        .review-stars {
            display: flex;
            gap: 0.25rem;
            color: #FFD700;
            font-size: 0.95rem;
        }

        .review-text {
            font-size: 0.95rem;
            line-height: 1.7;
            color: var(--text-silver);
            flex: 1;
        }

        .review-author {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .review-author-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, #FFD700, #FF9F00);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: #1a1a1a;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .review-author-name {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-white);
        }

        .review-author-role {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ===== NEWS / CMS SECTION ===== */
        .news-layout {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 2.5rem;
            align-items: start;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .news-item {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1rem 1.2rem;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            transition: var(--transition-fast);
        }

        .news-item:hover {
            border-color: var(--border-glow);
            background: rgba(0, 240, 255, 0.03);
            transform: translateX(4px);
        }

        .news-item-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            white-space: nowrap;
            flex-shrink: 0;
            min-width: 80px;
        }

        .news-item-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-white);
            line-height: 1.4;
            flex: 1;
        }

        .news-item:hover .news-item-title {
            color: var(--accent-cyan);
        }

        .news-item-category {
            font-size: 0.75rem;
            padding: 0.25rem 0.7rem;
            background: rgba(0, 240, 255, 0.08);
            border-radius: 50px;
            color: var(--accent-cyan);
            font-weight: 600;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            position: sticky;
            top: 100px;
        }

        .news-sidebar-card {
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.12), rgba(0, 240, 255, 0.06));
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
        }

        .news-sidebar-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 1rem;
        }

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

        .news-sidebar-list li a {
            font-size: 0.9rem;
            color: var(--text-silver);
            line-height: 1.5;
            display: flex;
            align-items: flex-start;
            gap: 0.5rem;
            transition: var(--transition-fast);
        }

        .news-sidebar-list li a:hover {
            color: var(--accent-cyan);
        }

        .news-sidebar-list li a i {
            color: var(--accent-cyan);
            font-size: 0.7rem;
            margin-top: 0.3rem;
        }

        /* ===== UPSELL CTA SECTION ===== */
        .upsell-band {
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.2), rgba(0, 240, 255, 0.1));
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: 3rem 2.5rem;
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 2rem;
            align-items: center;
        }

        .upsell-content h3 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }

        .upsell-content p {
            font-size: 1rem;
            color: var(--text-silver);
            line-height: 1.7;
            margin-bottom: 1.5rem;
            max-width: 500px;
        }

        .upsell-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }

        .upsell-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.4rem 1rem;
            background: rgba(0, 240, 255, 0.08);
            border-radius: 50px;
            font-size: 0.8rem;
            color: var(--accent-cyan);
            font-weight: 600;
        }

        .btn-upsell {
            padding: 0.85rem 2rem;
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-blue), #0052CC);
            border: none;
            border-radius: 12px;
            cursor: pointer;
            transition: var(--transition-fast);
            box-shadow: var(--shadow-blue);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-upsell:hover,
        .btn-upsell:focus {
            background: linear-gradient(135deg, #0066FF, var(--accent-cyan));
            box-shadow: var(--shadow-neon);
            transform: translateY(-2px);
            color: #fff;
        }

        .upsell-visual {
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 220px;
        }

        .upsell-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 850px;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition-fast);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.25rem 1.5rem;
            cursor: pointer;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-white);
            transition: var(--transition-fast);
            user-select: none;
        }

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

        .faq-question .faq-icon {
            font-size: 1.1rem;
            color: var(--accent-cyan);
            transition: var(--transition-medium);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            padding: 0 1.5rem;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding-bottom: 1.25rem;
        }

        .faq-answer p {
            font-size: 0.95rem;
            color: var(--text-silver);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== FAB ===== */
        .fab-left {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.75);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0.75)), linear-gradient(135deg, #00F0FF, #0052FF);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.4rem;
            cursor: pointer;
            transition: var(--transition-medium);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.45);
            opacity: 0.65;
            animation: fab-float 3s ease-in-out infinite;
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.7);
        }

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

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

        .fab-left .fab-notification {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #FF007F;
            border: 2px solid var(--bg-primary);
            animation: fab-blink 1.5s ease-in-out infinite;
        }

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

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: 3.5rem 0 2rem;
            margin-top: 2rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }

        .footer-brand .footer-logo {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .footer-brand .footer-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            border-radius: 10px;
            font-size: 1rem;
            color: #fff;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 300px;
            margin-bottom: 1.25rem;
        }

        .footer-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
        }

        .footer-trust-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.35rem 0.85rem;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-subtle);
            border-radius: 50px;
            font-size: 0.75rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .footer-trust-badge i {
            color: var(--accent-cyan);
            font-size: 0.8rem;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 1.1rem;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

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

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

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

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

        .footer-copyright a {
            color: var(--text-silver);
            font-weight: 600;
        }

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

        .footer-legal-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1.25rem;
        }

        .footer-legal-links a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: var(--transition-fast);
        }

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

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.3rem;
            }
            .social-feed-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .social-feed-right {
                position: static;
            }
            .news-layout {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .news-sidebar {
                position: static;
            }
            .upsell-band {
                grid-template-columns: 1fr;
                padding: 2rem 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 3.5rem;
                --spacing-inner: 1.5rem;
            }

            .hero-section {
                padding-top: 110px;
                padding-bottom: 3rem;
            }

            .hero-title {
                font-size: 1.9rem;
            }

            .hero-desc {
                font-size: 1rem;
            }

            .hero-data-row {
                gap: 1.25rem;
            }

            .hero-data-value {
                font-size: 1.3rem;
            }

            .section-title {
                font-size: 1.6rem;
            }

            .hotlist-grid {
                grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
                gap: 1rem;
            }

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

            .news-item {
                flex-wrap: wrap;
                gap: 0.5rem;
            }

            .news-item-date {
                min-width: auto;
            }

            .upsell-band {
                padding: 1.5rem 1.25rem;
            }

            .upsell-content h3 {
                font-size: 1.4rem;
            }

            .fab-left {
                width: 50px;
                height: 50px;
                font-size: 1.2rem;
                bottom: 5rem;
                left: 0.75rem;
            }
        }

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

            .hero-section {
                padding-top: 100px;
            }

            .hero-title {
                font-size: 1.5rem;
            }

            .hero-badge {
                font-size: 0.75rem;
                padding: 0.4rem 0.9rem;
            }

            .hero-cta-group {
                flex-direction: column;
                width: 100%;
            }

            .btn-hero-primary,
            .btn-hero-secondary,
            .btn-upsell {
                width: 100%;
                justify-content: center;
                text-align: center;
            }

            .section-title {
                font-size: 1.35rem;
            }

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

            .social-post-card {
                padding: 1.25rem;
            }

            .news-item {
                flex-direction: column;
                align-items: flex-start;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .footer-legal-links {
                justify-content: center;
            }

            .upsell-visual {
                min-height: 160px;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0B1A30;
            --bg-secondary: #0F0C20;
            --bg-card: rgba(15, 12, 32, 0.85);
            --bg-glass: rgba(11, 26, 48, 0.75);
            --accent-cyan: #00F0FF;
            --accent-lime: #CCFF00;
            --accent-deep-blue: #0052FF;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --text-muted: #7A8288;
            --border-glow: rgba(0, 240, 255, 0.25);
            --border-strong: rgba(0, 240, 255, 0.55);
            --shadow-neon: 0 0 25px rgba(0, 240, 255, 0.18);
            --shadow-neon-strong: 0 0 45px rgba(0, 240, 255, 0.35);
            --shadow-cyber: 0 20px 60px rgba(0, 0, 0, 0.55);
            --radius-sm: 10px;
            --radius-md: 18px;
            --radius-lg: 28px;
            --radius-pill: 100px;
            --space-xs: 8px;
            --space-sm: 16px;
            --space-md: 28px;
            --space-lg: 48px;
            --space-xl: 72px;
            --font-body: 'Be Vietnam Pro', 'Inter', system-ui, -apple-system, sans-serif;
            --font-heading: 'Be Vietnam Pro', 'Inter', system-ui, -apple-system, sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

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

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

        body {
            font-family: var(--font-body);
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.65;
            overflow-x: hidden;
            background-image: radial-gradient(circle at 15% 20%, rgba(0, 82, 255, 0.08) 0%, transparent 55%),
                radial-gradient(circle at 85% 80%, rgba(0, 240, 255, 0.07) 0%, transparent 55%),
                radial-gradient(circle at 50% 50%, rgba(15, 12, 32, 0.4) 0%, transparent 100%);
            background-attachment: fixed;
        }

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

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 100%;
            line-height: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

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

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .row {
            max-width: 1240px;
            margin: 0 auto;
        }

        .row .row {
            max-width: none;
            margin: 0 -15px;
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 26, 48, 0.92);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.18);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(8, 16, 30, 0.97);
            border-bottom-color: rgba(0, 240, 255, 0.4);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 74px;
            gap: var(--space-sm);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            flex-shrink: 0;
            transition: var(--transition);
        }

        .nav-logo:hover {
            transform: translateY(-1px);
        }

        .logo-icon {
            width: 46px;
            height: 46px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-deep-blue));
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-secondary);
            font-size: 1.4rem;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
            border: 1px solid rgba(0, 240, 255, 0.6);
            transition: var(--transition-bounce);
        }

        .nav-logo:hover .logo-icon {
            box-shadow: 0 0 35px rgba(0, 240, 255, 0.7);
            transform: rotate(-6deg);
        }

        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.15;
        }

        .brand-main {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.05rem;
            color: var(--text-white);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }

        .brand-sub {
            font-size: 0.72rem;
            font-weight: 500;
            color: var(--accent-cyan);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            white-space: nowrap;
        }

        .nav-links {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0;
        }

        .nav-links li a {
            display: block;
            padding: 10px 18px;
            font-weight: 600;
            font-size: 0.92rem;
            color: var(--text-silver);
            border-radius: var(--radius-pill);
            transition: var(--transition);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .nav-links li a:hover {
            color: var(--text-white);
            background: rgba(0, 240, 255, 0.08);
        }

        .nav-links li a.active {
            color: var(--bg-secondary);
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            font-weight: 700;
            box-shadow: 0 0 22px rgba(0, 240, 255, 0.35);
        }

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

        .btn-login {
            padding: 10px 20px;
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--text-white);
            border-radius: var(--radius-pill);
            transition: var(--transition);
            letter-spacing: 0.02em;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18);
        }

        .btn-login:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.06);
        }

        .btn-signup {
            padding: 10px 24px;
            font-weight: 700;
            font-size: 0.88rem;
            color: var(--bg-secondary);
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            border-radius: var(--radius-pill);
            transition: var(--transition-bounce);
            letter-spacing: 0.02em;
            box-shadow: 0 4px 18px rgba(0, 240, 255, 0.3);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0, 240, 255, 0.55);
            color: var(--bg-secondary);
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            color: var(--text-white);
            font-size: 1.3rem;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            transition: var(--transition);
            background: rgba(255, 255, 255, 0.04);
        }

        .nav-toggle:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }

        /* ============ ARTICLE MAIN ============ */
        .article-main {
            padding-top: 120px;
            padding-bottom: var(--space-xl);
        }

        .article-container {
            max-width: 860px;
            margin: 0 auto;
        }

        .article-header {
            margin-bottom: var(--space-lg);
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            margin-bottom: var(--space-sm);
        }

        .article-category-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 16px;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.35);
            color: var(--accent-cyan);
            font-size: 0.78rem;
            font-weight: 600;
            border-radius: var(--radius-pill);
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .article-date {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--text-muted);
            font-size: 0.82rem;
            font-weight: 400;
        }

        .article-date i {
            color: var(--accent-cyan);
            font-size: 0.9rem;
        }

        .article-title {
            font-family: var(--font-heading);
            font-size: 2.35rem;
            font-weight: 800;
            line-height: 1.28;
            letter-spacing: -0.03em;
            color: var(--text-white);
            margin-bottom: var(--space-sm);
        }

        .article-excerpt {
            font-size: 1.08rem;
            color: var(--text-silver);
            line-height: 1.7;
            margin-bottom: var(--space-md);
            padding-left: 18px;
            border-left: 3px solid var(--accent-cyan);
        }

        .article-hero-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-bottom: var(--space-lg);
            box-shadow: var(--shadow-cyber);
            border: 1px solid rgba(0, 240, 255, 0.2);
        }

        .article-hero-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        .article-body {
            font-size: 1.02rem;
            line-height: 1.78;
            color: var(--text-silver);
        }

        .article-body h2 {
            font-family: var(--font-heading);
            font-size: 1.65rem;
            font-weight: 700;
            color: var(--text-white);
            margin-top: var(--space-lg);
            margin-bottom: var(--space-sm);
            letter-spacing: -0.02em;
            padding-bottom: 12px;
            border-bottom: 2px solid rgba(0, 240, 255, 0.18);
        }

        .article-body h3 {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-white);
            margin-top: var(--space-md);
            margin-bottom: var(--space-xs);
            letter-spacing: -0.01em;
        }

        .article-body p {
            margin-bottom: var(--space-sm);
        }

        .article-body ul,
        .article-body ol {
            margin: var(--space-sm) 0 var(--space-sm) 24px;
            padding: 0;
        }

        .article-body li {
            margin-bottom: 8px;
            position: relative;
        }

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

        .article-body img {
            border-radius: var(--radius-md);
            margin: var(--space-md) 0;
            box-shadow: var(--shadow-neon);
            border: 1px solid rgba(0, 240, 255, 0.2);
        }

        .article-body blockquote {
            margin: var(--space-md) 0;
            padding: var(--space-sm) var(--space-md);
            background: rgba(0, 240, 255, 0.06);
            border-left: 4px solid var(--accent-lime);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--text-white);
            font-style: italic;
        }

        .article-body a {
            color: var(--accent-cyan);
            text-decoration: underline;
            text-underline-offset: 4px;
            text-decoration-thickness: 1px;
            font-weight: 600;
        }

        .article-body a:hover {
            color: var(--accent-lime);
        }

        .article-body strong {
            color: var(--text-white);
            font-weight: 700;
        }

        /* Article Not Found */
        .article-not-found {
            text-align: center;
            padding: var(--space-xl) var(--space-md);
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px dashed rgba(0, 240, 255, 0.3);
        }

        .article-not-found i {
            font-size: 4rem;
            color: var(--accent-cyan);
            margin-bottom: var(--space-md);
            display: block;
            opacity: 0.6;
        }

        .article-not-found h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: var(--space-xs);
        }

        .article-not-found p {
            color: var(--text-silver);
            margin-bottom: var(--space-md);
        }

        .btn-return-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--bg-secondary);
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            border-radius: var(--radius-pill);
            transition: var(--transition-bounce);
            box-shadow: 0 6px 25px rgba(0, 240, 255, 0.35);
            text-decoration: none;
        }

        .btn-return-home:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(0, 240, 255, 0.6);
            color: var(--bg-secondary);
        }

        /* Related CTA */
        .article-related-cta {
            margin-top: var(--space-xl);
            padding: var(--space-lg);
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.15), rgba(0, 240, 255, 0.08));
            border-radius: var(--radius-lg);
            border: 1px solid rgba(0, 240, 255, 0.3);
            box-shadow: var(--shadow-neon);
        }

        .article-related-cta h3 {
            font-family: var(--font-heading);
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: var(--space-xs);
        }

        .article-related-cta p {
            color: var(--text-silver);
            font-size: 0.95rem;
            margin-bottom: var(--space-md);
        }

        .cta-button-row {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 30px;
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--bg-secondary);
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            border-radius: var(--radius-pill);
            transition: var(--transition-bounce);
            box-shadow: 0 6px 25px rgba(0, 240, 255, 0.35);
            text-decoration: none;
        }

        .btn-cta-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(0, 240, 255, 0.6);
            color: var(--bg-secondary);
        }

        .btn-cta-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 30px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.22);
            border-radius: var(--radius-pill);
            transition: var(--transition);
            text-decoration: none;
        }

        .btn-cta-secondary:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.06);
        }

        /* ============ FLOATING ACTION BUTTON ============ */
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 990;
            width: 58px;
            height: 58px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 0, 0, 0.72);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 2px solid transparent;
            background-clip: padding-box;
            position: relative;
            opacity: 0.6;
            box-shadow: 0 0 18px rgba(0, 240, 255, 0.4);
            transition: var(--transition-bounce);
            cursor: pointer;
            animation: fabFloat 3.2s ease-in-out infinite;
            color: var(--accent-cyan);
            font-size: 1.4rem;
        }

        .fab-left::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 22px;
            padding: 2px;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-deep-blue), var(--accent-cyan));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            z-index: -1;
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.08);
            box-shadow: 0 0 35px rgba(0, 240, 255, 0.75);
            color: var(--accent-lime);
        }

        .fab-left:active {
            transform: scale(0.94);
        }

        .fab-notification {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            background: #FF007F;
            border-radius: 50%;
            border: 2px solid var(--bg-secondary);
            animation: fabBlink 1.6s ease-in-out infinite;
            box-shadow: 0 0 12px rgba(255, 0, 127, 0.8);
        }

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

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

        /* ============ FOOTER ============ */
        .site-footer {
            background: rgba(8, 16, 30, 0.95);
            border-top: 1px solid rgba(0, 240, 255, 0.2);
            padding: var(--space-xl) 0 var(--space-md);
            margin-top: var(--space-xl);
            position: relative;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent-cyan), var(--accent-lime), transparent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.9fr 0.9fr;
            gap: var(--space-lg);
            margin-bottom: var(--space-lg);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: var(--space-sm);
        }

        .footer-logo .logo-icon {
            width: 40px;
            height: 40px;
            font-size: 1.1rem;
            border-radius: 12px;
        }

        .footer-logo span:last-child {
            font-weight: 800;
            font-size: 1.05rem;
            color: var(--text-white);
            font-family: var(--font-heading);
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.7;
            margin-bottom: var(--space-md);
        }

        .footer-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-trust-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 12px;
            background: rgba(0, 240, 255, 0.06);
            border: 1px solid rgba(0, 240, 255, 0.25);
            border-radius: var(--radius-pill);
            font-size: 0.72rem;
            color: var(--text-silver);
            font-weight: 500;
        }

        .footer-trust-badge i {
            color: var(--accent-cyan);
        }

        .footer-col h4 {
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--accent-cyan);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: var(--space-sm);
        }

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

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

        .footer-col ul li a {
            color: var(--text-silver);
            font-size: 0.85rem;
            font-weight: 400;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-col ul li a::before {
            content: '';
            width: 5px;
            height: 5px;
            background: var(--accent-cyan);
            border-radius: 50%;
            opacity: 0.4;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--accent-lime);
            transform: translateX(4px);
        }

        .footer-col ul li a:hover::before {
            opacity: 1;
            background: var(--accent-lime);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-sm);
            padding-top: var(--space-md);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-copyright {
            color: var(--text-muted);
            font-size: 0.8rem;
        }

        .footer-copyright a {
            color: var(--accent-cyan);
            font-weight: 500;
        }

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

        .footer-legal-links {
            display: flex;
            gap: 16px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-legal-links a {
            color: var(--text-muted);
            font-size: 0.78rem;
            transition: var(--transition);
        }

        .footer-legal-links a:hover {
            color: var(--text-white);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .article-title {
                font-size: 2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-md);
            }
        }

        @media (max-width: 768px) {
            .nav-wrapper {
                flex-wrap: wrap;
                min-height: 64px;
                padding: 10px 0;
            }

            .nav-logo .brand-sub {
                display: none;
            }

            .logo-icon {
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
                border-radius: 10px;
            }

            .brand-main {
                font-size: 0.88rem;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                flex-direction: column;
                background: rgba(8, 16, 30, 0.98);
                backdrop-filter: blur(20px);
                padding: var(--space-sm);
                gap: 4px;
                border-bottom: 1px solid rgba(0, 240, 255, 0.3);
                box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
            }

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

            .nav-links li a {
                padding: 14px 18px;
                font-size: 0.95rem;
                width: 100%;
                border-radius: var(--radius-sm);
            }

            .nav-auth .btn-login {
                padding: 8px 14px;
                font-size: 0.78rem;
            }

            .nav-auth .btn-signup {
                padding: 8px 16px;
                font-size: 0.78rem;
            }

            .nav-toggle {
                display: flex;
            }

            .article-main {
                padding-top: 90px;
                padding-bottom: var(--space-lg);
            }

            .article-title {
                font-size: 1.65rem;
                line-height: 1.35;
            }

            .article-excerpt {
                font-size: 0.98rem;
                padding-left: 14px;
            }

            .article-body {
                font-size: 0.95rem;
                line-height: 1.72;
            }

            .article-body h2 {
                font-size: 1.35rem;
            }

            .article-body h3 {
                font-size: 1.15rem;
            }

            .article-related-cta {
                padding: var(--space-md);
            }

            .cta-button-row {
                flex-direction: column;
            }

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

            .fab-left {
                left: 12px;
                bottom: 80px;
                width: 50px;
                height: 50px;
                font-size: 1.2rem;
                border-radius: 16px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--space-md);
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: var(--space-xs);
            }

            .footer-legal-links {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }

            .nav-wrapper {
                gap: 8px;
            }

            .nav-auth {
                gap: 6px;
            }

            .nav-auth .btn-login {
                padding: 7px 10px;
                font-size: 0.7rem;
            }

            .nav-auth .btn-signup {
                padding: 7px 12px;
                font-size: 0.7rem;
            }

            .nav-toggle {
                width: 38px;
                height: 38px;
                font-size: 1.1rem;
                border-radius: 10px;
            }

            .article-main {
                padding-top: 80px;
            }

            .article-title {
                font-size: 1.4rem;
            }

            .article-meta {
                gap: 8px;
            }

            .article-category-badge {
                font-size: 0.7rem;
                padding: 5px 12px;
            }

            .article-date {
                font-size: 0.74rem;
            }

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

            .fab-left {
                left: 10px;
                bottom: 70px;
                width: 46px;
                height: 46px;
                font-size: 1.05rem;
                border-radius: 14px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0B1A30;
            --bg-secondary: #0F0C20;
            --bg-card: rgba(15, 25, 50, 0.92);
            --bg-card-hover: rgba(20, 35, 65, 0.95);
            --accent-primary: #CCFF00;
            --accent-secondary: #00F0FF;
            --accent-danger: #FF3D6E;
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --text-muted: #6B7A90;
            --border-glow: rgba(0, 240, 255, 0.25);
            --border-glow-hover: rgba(204, 255, 0, 0.5);
            --shadow-neon: 0 0 25px rgba(0, 240, 255, 0.15);
            --shadow-neon-hover: 0 0 40px rgba(204, 255, 0, 0.3);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --font-main: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-med: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: var(--font-main);
            background-color: var(--bg-primary);
            background-image: 
                radial-gradient(ellipse at 30% 10%, rgba(0, 240, 255, 0.05) 0%, transparent 50%),
                radial-gradient(ellipse at 70% 90%, rgba(204, 255, 0, 0.04) 0%, transparent 50%),
                linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        /* Container */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 12, 32, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
            transition: var(--transition-med);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
            background: rgba(11, 26, 48, 0.98);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            color: var(--text-primary);
            flex-shrink: 0;
        }
        .logo-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--accent-secondary), var(--accent-primary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-secondary);
            font-size: 1.4rem;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
            transition: var(--transition-fast);
        }
        .nav-logo:hover .logo-icon {
            transform: scale(1.05);
            box-shadow: 0 0 30px rgba(204, 255, 0, 0.5);
        }
        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        .brand-main {
            font-weight: 800;
            font-size: 1.15rem;
            letter-spacing: -0.02em;
        }
        .brand-sub {
            font-size: 0.75rem;
            color: var(--accent-primary);
            font-weight: 600;
            letter-spacing: 0.04em;
        }
        .nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 6px;
            margin: 0;
        }
        .nav-links li a {
            display: block;
            padding: 8px 16px;
            border-radius: 50px;
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.92rem;
            font-weight: 500;
            transition: var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-links li a:hover,
        .nav-links li a:focus {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
        }
        .nav-links li a.active {
            color: var(--accent-primary);
            background: rgba(204, 255, 0, 0.1);
            border: 1px solid rgba(204, 255, 0, 0.25);
        }
        .nav-links li a:focus-visible {
            outline: 2px solid var(--accent-secondary);
            outline-offset: 2px;
        }
        .nav-auth {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .btn-login,
        .btn-signup {
            border: none;
            cursor: pointer;
            font-family: var(--font-main);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 10px 20px;
            border-radius: 50px;
            transition: var(--transition-fast);
            white-space: nowrap;
        }
        .btn-login {
            background: transparent;
            color: var(--text-secondary);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .btn-login:hover {
            color: var(--text-primary);
            border-color: var(--accent-secondary);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.2);
        }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            color: var(--bg-secondary);
            box-shadow: 0 0 20px rgba(204, 255, 0, 0.3);
        }
        .btn-signup:hover {
            box-shadow: 0 0 35px rgba(204, 255, 0, 0.5);
            transform: translateY(-1px);
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: var(--text-primary);
            width: 42px;
            height: 42px;
            border-radius: 10px;
            cursor: pointer;
            font-size: 1.2rem;
            align-items: center;
            justify-content: center;
            transition: var(--transition-fast);
        }
        .nav-toggle:hover {
            border-color: var(--accent-secondary);
            color: var(--accent-secondary);
        }

        /* Main */
        main {
            padding-top: 72px;
        }

        /* Category Hero */
        .category-hero {
            padding: 60px 0 50px;
            background: 
                radial-gradient(ellipse at 20% 30%, rgba(0, 240, 255, 0.06) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 70%, rgba(204, 255, 0, 0.05) 0%, transparent 55%);
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
        }
        .category-hero-inner {
            display: flex;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
        }
        .category-hero-content {
            flex: 1;
            min-width: 300px;
        }
        .category-tag {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 50px;
            background: rgba(204, 255, 0, 0.1);
            border: 1px solid rgba(204, 255, 0, 0.3);
            color: var(--accent-primary);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            margin-bottom: 16px;
        }
        .category-hero h1 {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        .category-hero h1 .highlight {
            color: var(--accent-primary);
        }
        .category-hero p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 600px;
        }
        .category-hero-stats {
            display: flex;
            gap: 24px;
            margin-top: 24px;
            flex-wrap: wrap;
        }
        .stat-item {
            text-align: left;
        }
        .stat-number {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent-secondary);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .category-hero-image {
            flex: 0 0 340px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
            border: 1px solid rgba(0, 240, 255, 0.2);
            position: relative;
        }
        .category-hero-image img {
            width: 100%;
            height: auto;
            display: block;
        }
        .category-hero-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(11, 26, 48, 0.8));
            pointer-events: none;
        }

        /* Section Common */
        .section {
            padding: 60px 0;
        }
        .section-alt {
            background: rgba(15, 12, 32, 0.6);
            border-top: 1px solid rgba(0, 240, 255, 0.08);
            border-bottom: 1px solid rgba(0, 240, 255, 0.08);
        }
        .section-header {
            margin-bottom: 36px;
        }
        .section-header h2 {
            font-size: clamp(1.4rem, 3vw, 2rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 8px;
        }
        .section-header p {
            color: var(--text-secondary);
            font-size: 0.98rem;
            max-width: 600px;
        }

        /* Strategy Flow */
        .strategy-flow {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }
        .flow-step {
            flex: 1;
            min-width: 240px;
            padding: 24px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid rgba(0, 240, 255, 0.15);
            transition: var(--transition-med);
            position: relative;
        }
        .flow-step:hover {
            border-color: var(--border-glow-hover);
            box-shadow: var(--shadow-neon-hover);
            transform: translateY(-4px);
        }
        .flow-step-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: rgba(0, 240, 255, 0.3);
            margin-bottom: 12px;
            line-height: 1;
        }
        .flow-step h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .flow-step p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Boss Tips */
        .boss-tips-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .boss-tips-list li {
            padding: 20px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border-left: 4px solid var(--accent-secondary);
            border: 1px solid rgba(0, 240, 255, 0.15);
            border-left-width: 4px;
            border-left-color: var(--accent-secondary);
            transition: var(--transition-fast);
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .boss-tips-list li:hover {
            border-left-color: var(--accent-primary);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.1);
        }
        .boss-tips-list .tip-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(0, 240, 255, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-secondary);
            flex-shrink: 0;
            font-size: 1rem;
        }
        .boss-tips-list h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .boss-tips-list p {
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        /* Weapon Grid */
        .weapon-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 20px;
        }
        .weapon-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid rgba(0, 240, 255, 0.12);
            padding: 24px;
            transition: var(--transition-med);
            position: relative;
            overflow: hidden;
        }
        .weapon-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-secondary), var(--accent-primary));
            opacity: 0;
            transition: var(--transition-fast);
        }
        .weapon-card:hover::before {
            opacity: 1;
        }
        .weapon-card:hover {
            border-color: var(--border-glow-hover);
            box-shadow: var(--shadow-neon);
            transform: translateY(-3px);
        }
        .weapon-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .weapon-card .weapon-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 50px;
            font-size: 0.72rem;
            font-weight: 600;
            background: rgba(204, 255, 0, 0.1);
            color: var(--accent-primary);
            margin-bottom: 12px;
        }
        .weapon-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
        }

        /* Community Section */
        .community-bubbles {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .bubble-card {
            flex: 1;
            min-width: 280px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            position: relative;
            transition: var(--transition-med);
        }
        .bubble-card:hover {
            border-color: rgba(204, 255, 0, 0.3);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        }
        .bubble-quote {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            font-style: italic;
        }
        .bubble-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .bubble-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-secondary), var(--accent-primary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-secondary);
            font-weight: 700;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .bubble-author-info h5 {
            font-size: 0.92rem;
            font-weight: 700;
            margin-bottom: 2px;
        }
        .bubble-author-info span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* FAQ */
        .faq-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid rgba(0, 240, 255, 0.12);
            overflow: hidden;
            transition: var(--transition-fast);
        }
        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.3);
        }
        .faq-question {
            width: 100%;
            padding: 18px 24px;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-family: var(--font-main);
            font-size: 1rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            transition: var(--transition-fast);
            text-align: left;
        }
        .faq-question i {
            color: var(--accent-secondary);
            transition: var(--transition-fast);
        }
        .faq-question.active i {
            transform: rotate(180deg);
            color: var(--accent-primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .faq-answer-inner {
            padding: 0 24px 18px;
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
        }

        /* CTA Section */
        .cta-section {
            padding: 70px 0;
            background: 
                radial-gradient(ellipse at center, rgba(0, 240, 255, 0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 20%, rgba(204, 255, 0, 0.06) 0%, transparent 50%);
        }
        .cta-box {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            padding: 48px;
            border: 1px solid rgba(0, 240, 255, 0.2);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: conic-gradient(from 0deg, transparent, rgba(0, 240, 255, 0.05), transparent, rgba(204, 255, 0, 0.05), transparent);
            animation: rotateBg 8s linear infinite;
            pointer-events: none;
        }
        @keyframes rotateBg {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }
        .cta-box h2 {
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 800;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }
        .cta-box p {
            color: var(--text-secondary);
            font-size: 1rem;
            max-width: 500px;
            margin: 0 auto 28px;
            position: relative;
            z-index: 1;
        }
        .cta-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            color: var(--bg-secondary);
            border: none;
            padding: 14px 28px;
            border-radius: 50px;
            font-family: var(--font-main);
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition-fast);
            box-shadow: 0 0 25px rgba(204, 255, 0, 0.3);
        }
        .btn-primary:hover {
            box-shadow: 0 0 45px rgba(204, 255, 0, 0.5);
            transform: translateY(-2px);
        }
        .btn-secondary {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 14px 28px;
            border-radius: 50px;
            font-family: var(--font-main);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition-fast);
        }
        .btn-secondary:hover {
            border-color: var(--accent-secondary);
            color: var(--accent-secondary);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.2);
        }

        /* FAB */
        .fab-support {
            position: fixed;
            left: 20px;
            bottom: 100px;
            z-index: 999;
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(15, 12, 32, 0.7);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(15, 12, 32, 0.7), rgba(15, 12, 32, 0.7)), linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-secondary);
            font-size: 1.5rem;
            cursor: pointer;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
            transition: var(--transition-med);
            opacity: 0.6;
            animation: fabFloat 3s ease-in-out infinite;
        }
        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 35px rgba(204, 255, 0, 0.6);
            color: var(--accent-primary);
        }
        .fab-support:active {
            transform: scale(0.95);
        }
        .fab-support .fab-notification {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #FF3D6E;
            border: 2px solid var(--bg-secondary);
            animation: blink 1.5s ease-in-out infinite;
        }
        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(0, 240, 255, 0.15);
            padding: 50px 0 30px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand p {
            color: var(--text-secondary);
            font-size: 0.88rem;
            line-height: 1.7;
            margin: 16px 0;
            max-width: 340px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.1rem;
        }
        .footer-logo .logo-icon {
            width: 36px;
            height: 36px;
            font-size: 1.1rem;
            border-radius: 10px;
        }
        .footer-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-trust-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 12px;
            border-radius: 50px;
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid rgba(0, 240, 255, 0.2);
            color: var(--text-secondary);
            font-size: 0.75rem;
            font-weight: 500;
        }
        .footer-trust-badge i {
            color: var(--accent-secondary);
            font-size: 0.7rem;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.88rem;
            transition: var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--accent-primary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-copyright {
            color: var(--text-muted);
            font-size: 0.82rem;
        }
        .footer-legal {
            display: flex;
            gap: 16px;
        }
        .footer-legal a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.82rem;
            transition: var(--transition-fast);
        }
        .footer-legal a:hover {
            color: var(--accent-secondary);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .category-hero-inner {
                gap: 28px;
            }
            .category-hero-image {
                flex: 0 0 280px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .nav-wrapper {
                flex-wrap: wrap;
                height: auto;
                padding: 12px 0;
                gap: 10px;
            }
            .nav-logo {
                flex: 1;
            }
            .nav-links {
                display: none;
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(15, 12, 32, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 1px solid rgba(0, 240, 255, 0.2);
                z-index: 999;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li {
                width: 100%;
            }
            .nav-links li a {
                padding: 12px 16px;
                width: 100%;
            }
            .nav-auth {
                gap: 6px;
            }
            .btn-login,
            .btn-signup {
                padding: 8px 14px;
                font-size: 0.82rem;
            }
            .nav-toggle {
                display: flex;
            }
            .category-hero {
                padding: 40px 0 35px;
            }
            .category-hero-inner {
                flex-direction: column;
                gap: 24px;
            }
            .category-hero-image {
                flex: 0 0 auto;
                width: 100%;
                max-width: 400px;
                margin: 0 auto;
            }
            .category-hero-stats {
                gap: 16px;
            }
            .section {
                padding: 40px 0;
            }
            .cta-box {
                padding: 32px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .nav-logo .brand-main {
                font-size: 1rem;
            }
            .nav-logo .brand-sub {
                font-size: 0.7rem;
            }
            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 1.1rem;
            }
            .btn-login,
            .btn-signup {
                padding: 7px 10px;
                font-size: 0.75rem;
            }
            .category-hero h1 {
                font-size: 1.5rem;
            }
            .stat-number {
                font-size: 1.3rem;
            }
            .weapon-grid {
                grid-template-columns: 1fr;
            }
            .flow-step {
                min-width: 100%;
            }
            .bubble-card {
                min-width: 100%;
            }
            .fab-support {
                width: 48px;
                height: 48px;
                font-size: 1.3rem;
                left: 12px;
                bottom: 80px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0B1A30;
            --bg-deep: #0F0C20;
            --bg-card: #10243D;
            --bg-card-hover: #143252;
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --text-muted: #7B8496;
            --accent-cyan: #00F0FF;
            --accent-lime: #CCFF00;
            --accent-gold: #FFD700;
            --border-neon: rgba(0, 240, 255, 0.4);
            --border-light: rgba(255, 255, 255, 0.08);
            --shadow-neon: 0 0 20px rgba(0, 240, 255, 0.15);
            --shadow-card: 0 12px 28px rgba(0, 0, 0, 0.4);
            --radius-sm: 12px;
            --radius-md: 18px;
            --radius-lg: 28px;
            --radius-pill: 999px;
            --font-sans: 'Segoe UI', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
            --transition: all 0.25s cubic-bezier(0.2, 0, 0, 1);
        }

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

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            font-size: 16px;
        }

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

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }

        ul {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(11, 26, 48, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.12);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
            transition: var(--transition);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            gap: 32px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
            transition: var(--transition);
        }

        .nav-logo:hover {
            opacity: 0.9;
        }

        .logo-icon {
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: linear-gradient(145deg, #00F0FF 0%, #0052FF 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: #fff;
            box-shadow: 0 8px 22px rgba(0, 240, 255, 0.25);
        }

        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .brand-main {
            font-weight: 800;
            font-size: 1.15rem;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, #FFFFFF 0%, #CCFF00 80%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .brand-sub {
            font-size: 0.72rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--text-muted);
        }

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

        .nav-links li a {
            display: inline-flex;
            align-items: center;
            padding: 10px 18px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-links li a:hover {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.06);
        }

        .nav-links li a.active {
            color: #0B1A30;
            background: var(--accent-cyan);
            box-shadow: 0 4px 18px rgba(0, 240, 255, 0.3);
        }

        .nav-auth {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn-login {
            padding: 10px 20px;
            border-radius: var(--radius-pill);
            font-weight: 700;
            font-size: 0.92rem;
            color: var(--text-primary);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: var(--transition);
        }

        .btn-login:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.05);
        }

        .btn-signup {
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            font-weight: 800;
            font-size: 0.92rem;
            color: #0B1A30;
            background: var(--accent-lime);
            box-shadow: 0 8px 24px rgba(204, 255, 0, 0.3);
            transition: var(--transition);
            letter-spacing: 0.02em;
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(204, 255, 0, 0.45);
            background: #D4FF33;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.06);
            font-size: 22px;
            color: var(--text-primary);
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        /* Hero */
        .hero {
            background: linear-gradient(135deg, #0B1A30 0%, #0F0C20 100%);
            position: relative;
            overflow: hidden;
            padding: 80px 0 70px;
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 60%;
            height: 120%;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(204, 255, 0, 0.1);
            border: 1px solid rgba(204, 255, 0, 0.35);
            color: var(--accent-lime);
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            margin-bottom: 20px;
        }

        .hero h1 {
            font-size: 2.9rem;
            font-weight: 900;
            letter-spacing: -0.02em;
            line-height: 1.15;
            margin-bottom: 18px;
            background: linear-gradient(135deg, #FFFFFF 30%, #CCFF00 90%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-sub {
            font-size: 1.12rem;
            color: var(--text-secondary);
            max-width: 620px;
            margin-bottom: 28px;
            line-height: 1.7;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin-bottom: 32px;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
        }

        .hero-stat-value {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-cyan);
        }

        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .btn-primary {
            background: var(--accent-lime);
            color: #0B1A30;
            padding: 14px 32px;
            border-radius: var(--radius-pill);
            font-weight: 800;
            font-size: 1rem;
            box-shadow: 0 10px 30px rgba(204, 255, 0, 0.35);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 16px 38px rgba(204, 255, 0, 0.5);
            background: #D4FF33;
        }

        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            padding: 14px 28px;
            border-radius: var(--radius-pill);
            font-weight: 700;
            font-size: 0.95rem;
            border: 1px solid rgba(255, 255, 255, 0.25);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-outline:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.06);
        }

        .hero-visual {
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(0, 240, 255, 0.18);
            padding: 28px;
            box-shadow: var(--shadow-neon);
            backdrop-filter: blur(8px);
        }

        .hero-visual-title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 22px;
            color: var(--text-secondary);
            font-weight: 700;
            font-size: 1.05rem;
        }

        .hero-rank-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 18px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }

        .rank-item:hover {
            background: rgba(0, 240, 255, 0.08);
            border-color: rgba(0, 240, 255, 0.3);
            transform: translateX(4px);
        }

        .rank-number {
            font-weight: 900;
            font-size: 1.4rem;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: rgba(0, 240, 255, 0.12);
            color: var(--accent-cyan);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .rank-info h4 {
            font-weight: 700;
            font-size: 0.98rem;
        }

        .rank-info p {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        /* Section General */
        .section {
            padding: 64px 0;
        }

        .section-alt {
            background: rgba(255, 255, 255, 0.02);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .section-header {
            margin-bottom: 40px;
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.2;
            background: linear-gradient(135deg, #FFFFFF 40%, #CCFF00 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .section-sub {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 460px;
            line-height: 1.6;
        }

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

        .info-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            padding: 28px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .info-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(0, 240, 255, 0.3);
            box-shadow: var(--shadow-card);
            transform: translateY(-4px);
        }

        .info-card .card-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(0, 240, 255, 0.12);
            color: var(--accent-cyan);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 18px;
        }

        .info-card h3 {
            font-size: 1.2rem;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .info-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.65;
        }

        /* Timeline / Process */
        .process-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-top: 28px;
        }

        .process-item {
            display: flex;
            gap: 18px;
            align-items: flex-start;
            padding: 18px 20px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: var(--radius-sm);
            border-left: 4px solid var(--accent-cyan);
            transition: var(--transition);
        }

        .process-item:hover {
            background: rgba(0, 240, 255, 0.06);
            transform: translateX(6px);
        }

        .process-step {
            font-weight: 900;
            color: var(--accent-lime);
            font-size: 1.4rem;
            line-height: 1.2;
        }

        .process-item h4 {
            font-weight: 700;
            margin-bottom: 4px;
        }

        .process-item p {
            color: var(--text-secondary);
            font-size: 0.92rem;
        }

        /* Media blocks */
        .media-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }

        .media-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid rgba(0, 240, 255, 0.2);
            box-shadow: var(--shadow-neon);
        }

        .media-img img {
            width: 100%;
            height: 280px;
            object-fit: cover;
            transition: var(--transition);
        }

        .media-img:hover img {
            transform: scale(1.03);
        }

        .media-caption {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-top: 8px;
            text-align: center;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 860px;
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.03);
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.08);
            padding: 18px 22px;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.25);
            background: rgba(0, 240, 255, 0.04);
        }

        .faq-question {
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .faq-question i {
            color: var(--accent-cyan);
        }

        .faq-answer {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.65;
        }

        /* CTA */
        .cta-panel {
            background: linear-gradient(135deg, #0B1A30 0%, #10243D 100%);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(0, 240, 255, 0.25);
            padding: 48px 36px;
            text-align: left;
            box-shadow: var(--shadow-neon);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
        }

        .cta-panel h2 {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, #FFFFFF, #CCFF00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .cta-panel p {
            color: var(--text-secondary);
            max-width: 500px;
        }

        /* Footer */
        .site-footer {
            background: #0A0F1C;
            border-top: 1px solid rgba(0, 240, 255, 0.1);
            padding: 48px 0 24px;
            margin-top: 20px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.2rem;
            margin-bottom: 12px;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            max-width: 360px;
        }

        .footer-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 16px;
        }

        .footer-trust-badge {
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid rgba(0, 240, 255, 0.2);
            padding: 6px 12px;
            border-radius: var(--radius-pill);
            font-size: 0.78rem;
            color: var(--text-secondary);
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 16px;
            color: var(--accent-cyan);
        }

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

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

        .footer-col ul li a:hover {
            color: var(--accent-cyan);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        /* FAB */
        .fab-left {
            position: fixed;
            left: 18px;
            bottom: 96px;
            z-index: 70;
            width: 58px;
            height: 58px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            border-image: linear-gradient(135deg, #00F0FF, #CCFF00) 1;
            box-shadow: 0 0 18px rgba(0, 240, 255, 0.45);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 26px;
            transition: var(--transition);
            opacity: 0.7;
            animation: fabFloat 3s infinite ease-in-out;
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.7);
        }

        .fab-left::after {
            content: '';
            position: absolute;
            top: -3px;
            right: -3px;
            width: 12px;
            height: 12px;
            background: #FF007F;
            border-radius: 50%;
            border: 2px solid #0B1A30;
            animation: blinkDot 1.5s infinite;
        }

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

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

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .hero h1 {
                font-size: 2.3rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .media-row {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-wrapper {
                height: auto;
                flex-wrap: wrap;
                padding: 12px 0;
            }
            .nav-links {
                display: none;
                width: 100%;
                order: 3;
                flex-direction: column;
                gap: 6px;
                padding: 12px 0 8px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-auth {
                margin-left: auto;
            }
            .nav-toggle {
                display: flex;
            }
            .btn-login, .btn-signup {
                padding: 8px 16px;
                font-size: 0.82rem;
            }
            .hero {
                padding: 48px 0 48px;
            }
            .section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .cta-panel {
                flex-direction: column;
                align-items: flex-start;
                padding: 32px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .fab-left {
                width: 50px;
                height: 50px;
                font-size: 22px;
                left: 12px;
                bottom: 80px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero h1 {
                font-size: 1.9rem;
            }
            .hero-sub {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 16px;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
            }
        }