/* roulang page: index */
:root {
            --bg-primary: #0D111E;
            --bg-secondary: #161B2A;
            --bg-card: #1A2035;
            --bg-glass: rgba(26, 32, 53, 0.8);
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --accent-green: #00E676;
            --accent-red: #FF1744;
            --accent-gold: #FFD700;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #8892B0;
            --border-color: rgba(0, 240, 255, 0.15);
            --border-glow: rgba(0, 240, 255, 0.3);
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 20px rgba(0, 240, 255, 0.2);
            --shadow-blue: 0 0 15px rgba(0, 82, 255, 0.4);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        img { max-width: 100%; height: auto; display: block; }
        button { cursor: pointer; border: none; outline: none; font-family: inherit; }
        ul, ol { list-style: none; padding: 0; margin: 0; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        .container-narrow { max-width: 960px; margin: 0 auto; padding: 0 20px; }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(13, 17, 30, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .site-header.scrolled { background: rgba(13, 17, 30, 0.95); box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .logo {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            line-height: 1.2;
            max-width: 320px;
        }
        .logo i { color: var(--accent-cyan); font-size: 1.5rem; }
        .nav-links { display: flex; align-items: center; gap: 8px; }
        .nav-links a {
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
            letter-spacing: 0.2px;
        }
        .nav-links a:hover { color: var(--text-primary); background: rgba(255, 255, 255, 0.05); }
        .nav-links a.active { color: var(--accent-cyan); background: rgba(0, 240, 255, 0.08); font-weight: 600; }
        .header-actions { display: flex; align-items: center; gap: 10px; }
        .btn-login {
            padding: 8px 20px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            background: transparent;
            color: var(--text-primary);
            border: 1px solid rgba(255, 255, 255, 0.25);
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-login:hover { border-color: var(--accent-cyan); background: rgba(0, 240, 255, 0.05); }
        .btn-signup {
            padding: 8px 22px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            background: var(--accent-blue);
            color: #FFFFFF;
            transition: var(--transition);
            white-space: nowrap;
            box-shadow: var(--shadow-blue);
        }
        .btn-signup:hover { background: #0040CC; box-shadow: 0 0 25px rgba(0, 82, 255, 0.6); transform: translateY(-1px); }
        .mobile-toggle {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.5rem;
            padding: 8px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .mobile-toggle:hover { border-color: var(--accent-cyan); }

        /* Mobile Menu */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            width: 100%;
            background: rgba(13, 17, 30, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            padding: 20px;
            z-index: 999;
            flex-direction: column;
            gap: 8px;
        }
        .mobile-menu.open { display: flex; }
        .mobile-menu a {
            padding: 12px 16px;
            border-radius: 12px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            display: block;
            text-align: center;
        }
        .mobile-menu a:hover { color: var(--text-primary); background: rgba(255, 255, 255, 0.05); }
        .mobile-menu a.active { color: var(--accent-cyan); background: rgba(0, 240, 255, 0.08); }
        .mobile-menu .mobile-actions { display: flex; gap: 10px; margin-top: 8px; flex-direction: column; }
        .mobile-menu .btn-login, .mobile-menu .btn-signup { display: block; text-align: center; width: 100%; padding: 12px 20px; }

        /* Hero Section */
        .hero-section {
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            padding-top: 88px;
            padding-bottom: 60px;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 17, 30, 0.92) 0%, rgba(13, 17, 30, 0.7) 50%, rgba(0, 82, 255, 0.15) 100%);
            z-index: 1;
        }
        .hero-content { position: relative; z-index: 2; max-width: 700px; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.3);
            border-radius: 30px;
            padding: 6px 18px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-cyan);
            margin-bottom: 24px;
            letter-spacing: 0.5px;
        }
        .hero-badge i { font-size: 0.9rem; animation: pulse-badge 2s ease-in-out infinite; }
        @keyframes pulse-badge { 0%, 100% { opacity: 0.7; } 50% { opacity: 1; } }
        .hero-title {
            font-size: clamp(2.4rem, 6vw, 3.6rem);
            font-weight: 800;
            line-height: 1.15;
            margin-bottom: 20px;
            letter-spacing: -1px;
            color: #FFFFFF;
        }
        .hero-title span { color: var(--accent-cyan); }
        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 600px;
        }
        .hero-cta-group { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
        .btn-hero-primary {
            padding: 14px 32px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--accent-blue), #0040CC);
            color: #FFFFFF;
            box-shadow: var(--shadow-blue);
            transition: var(--transition);
            letter-spacing: 0.3px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn-hero-primary:hover { box-shadow: 0 0 30px rgba(0, 82, 255, 0.7); transform: translateY(-2px); }
        .btn-hero-secondary {
            padding: 14px 32px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            background: transparent;
            color: var(--text-primary);
            border: 1.5px solid rgba(255, 255, 255, 0.3);
            transition: var(--transition);
            letter-spacing: 0.3px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn-hero-secondary:hover { border-color: var(--accent-cyan); background: rgba(0, 240, 255, 0.05); }
        .hero-stats { display: flex; gap: 30px; margin-top: 36px; flex-wrap: wrap; }
        .hero-stat-item { text-align: left; }
        .hero-stat-num { font-size: 2rem; font-weight: 800; color: var(--accent-cyan); line-height: 1; }
        .hero-stat-label { font-size: 0.85rem; color: var(--text-muted); margin-top: 6px; }
        .hero-visual {
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            z-index: 2;
            width: 45%;
            max-width: 520px;
            display: none;
        }
        .hero-visual img {
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card), var(--shadow-glow);
            border: 1px solid var(--border-glow);
        }
        @media (min-width: 1024px) {
            .hero-visual { display: block; }
            .hero-content { max-width: 50%; }
        }

        /* Sections Common */
        section { padding: 80px 0; }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--accent-cyan);
            margin-bottom: 12px;
        }
        .section-title {
            font-size: clamp(1.8rem, 4vw, 2.4rem);
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.25;
            color: var(--text-primary);
            letter-spacing: -0.5px;
        }
        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 40px;
            max-width: 700px;
        }

        /* Section: Trial / Benefits */
        .benefits-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
        .benefit-card {
            background: var(--bg-glass);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .benefit-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 40px;
            background: var(--accent-cyan);
            border-radius: 0 0 4px 0;
        }
        .benefit-card:hover { border-color: var(--border-glow); box-shadow: var(--shadow-glow); transform: translateY(-4px); }
        .benefit-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: rgba(0, 240, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent-cyan);
            margin-bottom: 20px;
        }
        .benefit-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 10px; color: var(--text-primary); }
        .benefit-card p { font-size: 0.95rem; color: var(--text-secondary); line-height: 1.6; }

        /* Section: Qualification / Requirements */
        .qualification-list { display: flex; flex-direction: column; gap: 20px; }
        .qual-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            border: 1px solid rgba(255, 255, 255, 0.05);
            transition: var(--transition);
        }
        .qual-item:hover { border-color: var(--border-color); box-shadow: var(--shadow-card); }
        .qual-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(0, 82, 255, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--accent-blue);
            flex-shrink: 0;
        }
        .qual-text h4 { font-size: 1.1rem; font-weight: 700; color: var(--text-primary); margin-bottom: 6px; }
        .qual-text p { font-size: 0.95rem; color: var(--text-secondary); line-height: 1.6; }

        /* Section: Rewards Preview */
        .rewards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; }
        .reward-card {
            background: var(--bg-glass);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            transition: var(--transition);
        }
        .reward-card:hover { border-color: var(--accent-gold); box-shadow: 0 0 25px rgba(255, 215, 0, 0.2); transform: translateY(-6px); }
        .reward-icon { font-size: 2.6rem; margin-bottom: 14px; color: var(--accent-gold); }
        .reward-card h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; color: var(--text-primary); }
        .reward-card p { font-size: 0.9rem; color: var(--text-secondary); }
        .reward-value { font-size: 1.4rem; font-weight: 800; color: var(--accent-cyan); margin: 8px 0; }

        /* Section: Latest News / CMS */
        .news-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 30px; }
        .news-list { display: flex; flex-direction: column; gap: 16px; }
        .news-item {
            display: flex;
            gap: 16px;
            padding: 18px 20px;
            border-radius: var(--radius-md);
            background: var(--bg-card);
            transition: var(--transition);
            align-items: center;
            border: 1px solid rgba(255, 255, 255, 0.04);
        }
        .news-item:hover { border-color: var(--border-color); box-shadow: var(--shadow-card); }
        .news-item-badge {
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent-cyan);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .news-item-content h5 { font-size: 1rem; font-weight: 600; color: var(--text-primary); margin-bottom: 4px; line-height: 1.4; }
        .news-item-content h5 a:hover { color: var(--accent-cyan); }
        .news-item-content span { font-size: 0.8rem; color: var(--text-muted); }
        .news-recommend {
            background: var(--bg-glass);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            height: fit-content;
        }
        .news-recommend h4 { font-size: 1.1rem; font-weight: 700; color: var(--accent-cyan); margin-bottom: 4px; }
        .news-recommend-item {
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .news-recommend-item:last-child { border-bottom: none; }
        .news-recommend-item a { font-size: 0.95rem; font-weight: 500; color: var(--text-secondary); line-height: 1.4; transition: var(--transition); }
        .news-recommend-item a:hover { color: var(--accent-cyan); }
        .news-recommend-item span { font-size: 0.78rem; color: var(--text-muted); display: block; margin-top: 4px; }

        @media (max-width: 768px) {
            .news-grid { grid-template-columns: 1fr; }
        }

        /* Section: Hot Recommendations */
        .hot-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 20px; }
        .hot-card-main {
            background: var(--bg-glass);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
            position: relative;
            grid-row: span 2;
        }
        .hot-card-main:hover { border-color: var(--border-glow); box-shadow: var(--shadow-glow); }
        .hot-card-main img { width: 100%; height: 260px; object-fit: cover; }
        .hot-card-body { padding: 24px; }
        .hot-tag {
            display: inline-block;
            background: var(--accent-red);
            color: #FFF;
            padding: 4px 12px;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .hot-card-body h3 { font-size: 1.3rem; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
        .hot-card-body p { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 16px; }
        .btn-play {
            padding: 10px 24px;
            border-radius: 25px;
            background: var(--accent-blue);
            color: #FFF;
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .btn-play:hover { background: #0040CC; box-shadow: var(--shadow-blue); color: #FFF; }
        .hot-card-small {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 20px;
            border: 1px solid rgba(255, 255, 255, 0.04);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .hot-card-small:hover { border-color: var(--border-color); box-shadow: var(--shadow-card); transform: translateY(-2px); }
        .hot-card-small h4 { font-size: 1rem; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
        .hot-card-small p { font-size: 0.85rem; color: var(--text-secondary); }
        .hot-card-small .hot-tag { align-self: flex-start; }

        @media (max-width: 768px) {
            .hot-grid { grid-template-columns: 1fr; }
        }

        /* Section: Highlights Wall */
        .highlights-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
        .highlight-card {
            background: var(--bg-glass);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
        }
        .highlight-card:hover { border-color: var(--border-glow); box-shadow: var(--shadow-glow); transform: translateY(-4px); }
        .highlight-card img { width: 100%; height: 200px; object-fit: cover; }
        .highlight-body { padding: 22px 20px; }
        .highlight-body h4 { font-size: 1.1rem; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
        .highlight-body p { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 14px; }
        .btn-highlight {
            padding: 8px 20px;
            border-radius: 20px;
            background: transparent;
            border: 1px solid var(--accent-cyan);
            color: var(--accent-cyan);
            font-weight: 600;
            font-size: 0.85rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .btn-highlight:hover { background: rgba(0, 240, 255, 0.1); color: #FFF; }

        /* Section: Application Form */
        .form-container {
            background: var(--bg-glass);
            backdrop-filter: blur(15px);
            -webkit-backdrop-filter: blur(15px);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            padding: 48px 36px;
            max-width: 600px;
            margin: 0 auto;
        }
        .form-container h2 { font-size: 1.6rem; font-weight: 700; color: var(--text-primary); margin-bottom: 24px; text-align: center; }
        .form-group { margin-bottom: 18px; }
        .form-group label { display: block; font-size: 0.9rem; font-weight: 600; color: var(--text-secondary); margin-bottom: 6px; }
        .form-group input, .form-group select {
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--text-primary);
            font-size: 0.95rem;
            transition: var(--transition);
            font-family: inherit;
        }
        .form-group input:focus, .form-group select:focus { outline: none; border-color: var(--accent-cyan); box-shadow: var(--shadow-glow); }
        .btn-submit {
            width: 100%;
            padding: 14px;
            border-radius: 25px;
            background: linear-gradient(135deg, var(--accent-blue), #0040CC);
            color: #FFF;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: var(--shadow-blue);
            margin-top: 8px;
            letter-spacing: 0.3px;
        }
        .btn-submit:hover { box-shadow: 0 0 30px rgba(0, 82, 255, 0.7); transform: translateY(-2px); }

        /* FAQ */
        .faq-list { display: flex; flex-direction: column; gap: 12px; max-width: 800px; margin: 0 auto; }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.04);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--border-color); }
        .faq-question {
            width: 100%;
            padding: 20px 24px;
            background: transparent;
            color: var(--text-primary);
            font-size: 1rem;
            font-weight: 600;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
            text-align: left;
            cursor: pointer;
            border: none;
            outline: none;
            font-family: inherit;
            line-height: 1.5;
        }
        .faq-question i { transition: var(--transition); color: var(--accent-cyan); font-size: 1rem; }
        .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer { display: block; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-item.open { border-color: var(--border-glow); box-shadow: var(--shadow-glow); }

        /* Floating CTA Bar */
        .floating-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: rgba(13, 17, 30, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-top: 1px solid var(--border-color);
            padding: 14px 20px;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 16px;
            z-index: 998;
            flex-wrap: wrap;
        }
        .floating-cta-bar span { font-size: 0.9rem; font-weight: 600; color: var(--text-primary); }
        .floating-cta-bar .btn-hero-primary { padding: 10px 24px; font-size: 0.9rem; }

        /* FAB */
        .fab {
            position: fixed;
            left: 20px;
            bottom: 100px;
            z-index: 997;
            width: 54px;
            height: 54px;
            border-radius: 30px;
            background: rgba(22, 27, 42, 0.8);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            border-image: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue)) 1;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.4rem;
            transition: var(--transition);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
            cursor: pointer;
            animation: fab-float 3s ease-in-out infinite;
        }
        .fab:hover {
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.6);
            transform: scale(1.08);
            color: #FFF;
        }
        @keyframes fab-float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 120px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
        }
        .footer-col h4 { font-size: 1rem; font-weight: 700; color: var(--text-primary); margin-bottom: 16px; }
        .footer-col ul { display: flex; flex-direction: column; gap: 10px; }
        .footer-col ul li a { font-size: 0.9rem; color: var(--text-muted); transition: var(--transition); }
        .footer-col ul li a:hover { color: var(--accent-cyan); }
        .footer-bottom {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .footer-badges { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; justify-content: center; }
        .footer-badge {
            padding: 6px 14px;
            border-radius: 16px;
            background: rgba(255, 215, 0, 0.08);
            color: var(--accent-gold);
            font-size: 0.78rem;
            font-weight: 600;
            border: 1px solid rgba(255, 215, 0, 0.2);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            section { padding: 60px 0; }
            .hero-section { padding-top: 80px; }
        }
        @media (max-width: 768px) {
            .nav-links, .header-actions { display: none; }
            .mobile-toggle { display: block; }
            .hero-section { text-align: left; }
            .hero-stats { gap: 20px; }
            .hero-stat-num { font-size: 1.5rem; }
            .benefits-grid { grid-template-columns: 1fr; }
            .rewards-grid { grid-template-columns: repeat(2, 1fr); }
            .highlights-grid { grid-template-columns: 1fr; }
            .form-container { padding: 32px 20px; }
        }
        @media (max-width: 520px) {
            .rewards-grid { grid-template-columns: 1fr; }
            .hero-cta-group { flex-direction: column; align-items: stretch; }
            .btn-hero-primary, .btn-hero-secondary { text-align: center; justify-content: center; }
            .floating-cta-bar { padding: 10px 14px; gap: 8px; }
            .floating-cta-bar span { font-size: 0.8rem; }
            .floating-cta-bar .btn-hero-primary { padding: 8px 16px; font-size: 0.8rem; }
            .fab { bottom: 90px; left: 12px; width: 48px; height: 48px; }
        }

/* roulang page: article */
:root {
            --bg-primary: #0D111E;
            --bg-secondary: #161B2A;
            --bg-card: #1A2035;
            --bg-glass: rgba(26, 32, 53, 0.8);
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --accent-green: #00E676;
            --accent-red: #FF1744;
            --accent-gold: #FFD700;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #8892B0;
            --border-color: rgba(0, 240, 255, 0.15);
            --border-glow: rgba(0, 240, 255, 0.3);
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 20px rgba(0, 240, 255, 0.2);
            --shadow-blue: 0 0 15px rgba(0, 82, 255, 0.4);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

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

        .container-narrow {
            max-width: 860px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(13, 17, 30, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(13, 17, 30, 0.95);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .logo {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            line-height: 1.2;
            max-width: 320px;
        }

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

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

        .nav-links a {
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
            letter-spacing: 0.2px;
        }

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

        .nav-links a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
            font-weight: 600;
        }

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

        .btn-login {
            padding: 8px 20px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            background: transparent;
            color: var(--text-primary);
            border: 1px solid rgba(255, 255, 255, 0.25);
            transition: var(--transition);
            white-space: nowrap;
        }

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

        .btn-signup {
            padding: 8px 22px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            background: var(--accent-blue);
            color: #FFFFFF;
            transition: var(--transition);
            white-space: nowrap;
            box-shadow: var(--shadow-blue);
        }

        .btn-signup:hover {
            background: #0040CC;
            box-shadow: 0 0 25px rgba(0, 82, 255, 0.6);
            transform: translateY(-1px);
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.5rem;
            padding: 8px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

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

        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            width: 100%;
            background: rgba(13, 17, 30, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            padding: 20px;
            z-index: 999;
            flex-direction: column;
            gap: 8px;
        }

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

        .mobile-menu a {
            padding: 12px 16px;
            border-radius: 12px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            display: block;
            text-align: center;
        }

        .mobile-menu a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
        }

        .mobile-menu a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
        }

        .mobile-menu .mobile-actions {
            display: flex;
            gap: 10px;
            margin-top: 8px;
            flex-direction: column;
        }

        .mobile-menu .btn-login,
        .mobile-menu .btn-signup {
            display: block;
            text-align: center;
            width: 100%;
            padding: 12px 20px;
        }

        .page-article {
            padding-top: 100px;
            padding-bottom: 60px;
        }

        .article-header {
            padding-bottom: 32px;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 40px;
        }

        .article-category {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent-cyan);
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .article-title {
            font-size: 2.5rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

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

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

        .article-meta i {
            color: var(--accent-cyan);
            font-size: 0.85rem;
        }

        .article-content {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--text-secondary);
        }

        .article-content h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-top: 36px;
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-color);
        }

        .article-content h3 {
            font-size: 1.35rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-top: 28px;
            margin-bottom: 12px;
        }

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

        .article-content ul,
        .article-content ol {
            margin-bottom: 18px;
            padding-left: 24px;
        }

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

        .article-content ul li::marker {
            color: var(--accent-cyan);
        }

        .article-content img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            box-shadow: var(--shadow-card);
        }

        .article-content blockquote {
            background: var(--bg-glass);
            border-left: 4px solid var(--accent-cyan);
            padding: 20px 24px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: 28px 0;
            color: var(--text-secondary);
            font-style: italic;
            box-shadow: var(--shadow-glow);
        }

        .article-content a {
            color: var(--accent-cyan);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-content a:hover {
            color: var(--accent-blue);
        }

        .article-content .highlight-box {
            background: var(--bg-glass);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: 28px;
            margin: 32px 0;
            box-shadow: var(--shadow-glow);
        }

        .article-not-found {
            text-align: center;
            padding: 80px 20px;
        }

        .article-not-found i {
            font-size: 4rem;
            color: var(--accent-cyan);
            margin-bottom: 20px;
            opacity: 0.6;
        }

        .article-not-found h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: 24px;
            font-size: 1.1rem;
        }

        .btn-back-home {
            display: inline-block;
            padding: 12px 28px;
            border-radius: 20px;
            font-size: 1rem;
            font-weight: 600;
            background: var(--accent-blue);
            color: #FFFFFF;
            transition: var(--transition);
            box-shadow: var(--shadow-blue);
        }

        .btn-back-home:hover {
            background: #0040CC;
            box-shadow: 0 0 25px rgba(0, 82, 255, 0.6);
            transform: translateY(-2px);
        }

        .floating-fab {
            position: fixed;
            left: 20px;
            bottom: 80px;
            z-index: 50;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(13, 17, 30, 0.75);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.4rem;
            transition: var(--transition);
            box-shadow: 0 0 18px rgba(0, 240, 255, 0.35);
            cursor: pointer;
        }

        .floating-fab::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 50%;
            padding: 2px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            z-index: -1;
        }

        .floating-fab:hover {
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.6);
            color: #FFFFFF;
        }

        .floating-fab .fab-notification {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 12px;
            height: 12px;
            background: var(--accent-red);
            border-radius: 50%;
            animation: pulse-dot 1.5s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(255, 23, 68, 0.6);
            }
            50% {
                box-shadow: 0 0 0 8px rgba(255, 23, 68, 0);
            }
        }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 50px 0 30px;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.2px;
        }

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

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

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

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

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

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

        .footer-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .footer-badge {
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-muted);
            border: 1px solid var(--border-color);
            white-space: nowrap;
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-title {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .header-actions.desktop-actions {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .article-title {
                font-size: 1.6rem;
            }
            .article-content {
                font-size: 1rem;
            }
            .article-content h2 {
                font-size: 1.4rem;
            }
            .article-content h3 {
                font-size: 1.2rem;
            }
            .floating-fab {
                left: 12px;
                bottom: 60px;
                width: 44px;
                height: 44px;
                font-size: 1.2rem;
            }
            .header-actions {
                display: flex;
                gap: 8px;
            }
            .header-actions .btn-login,
            .header-actions .btn-signup {
                display: block;
                padding: 8px 16px;
                font-size: 0.8rem;
            }
            .mobile-actions {
                display: flex;
            }
        }

        @media (max-width: 520px) {
            .logo {
                font-size: 1rem;
                max-width: 200px;
            }
            .container {
                padding: 0 16px;
            }
            .container-narrow {
                padding: 0 16px;
            }
            .article-title {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0D111E;
            --bg-secondary: #161B2A;
            --bg-card: #1A2035;
            --bg-glass: rgba(26, 32, 53, 0.8);
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --accent-green: #00E676;
            --accent-red: #FF1744;
            --accent-gold: #FFD700;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #8892B0;
            --border-color: rgba(0, 240, 255, 0.15);
            --border-glow: rgba(0, 240, 255, 0.3);
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 20px rgba(0, 240, 255, 0.2);
            --shadow-blue: 0 0 15px rgba(0, 82, 255, 0.4);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

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

        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(13, 17, 30, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(13, 17, 30, 0.95);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .logo {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            line-height: 1.2;
            max-width: 320px;
        }

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

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

        .nav-links a {
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
            letter-spacing: 0.2px;
        }

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

        .nav-links a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
            font-weight: 600;
        }

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

        .btn-login {
            padding: 8px 20px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            background: transparent;
            color: var(--text-primary);
            border: 1px solid rgba(255, 255, 255, 0.25);
            transition: var(--transition);
            white-space: nowrap;
        }

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

        .btn-signup {
            padding: 8px 22px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            background: var(--accent-blue);
            color: #FFFFFF;
            transition: var(--transition);
            white-space: nowrap;
            box-shadow: var(--shadow-blue);
        }

        .btn-signup:hover {
            background: #0040CC;
            box-shadow: 0 0 25px rgba(0, 82, 255, 0.6);
            transform: translateY(-1px);
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.5rem;
            padding: 8px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

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

        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            width: 100%;
            background: rgba(13, 17, 30, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            padding: 20px;
            z-index: 999;
            flex-direction: column;
            gap: 8px;
        }

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

        .mobile-menu a {
            padding: 12px 16px;
            border-radius: 12px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            display: block;
            text-align: center;
        }

        .mobile-menu a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
        }

        .mobile-menu a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
        }

        .mobile-menu .mobile-actions {
            display: flex;
            gap: 10px;
            margin-top: 8px;
            flex-direction: column;
        }

        .mobile-menu .btn-login,
        .mobile-menu .btn-signup {
            display: block;
            text-align: center;
            width: 100%;
            padding: 12px 20px;
        }

        .page-banner {
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.15) 0%, rgba(0, 240, 255, 0.08) 100%);
            border-bottom: 1px solid var(--border-color);
            padding: 100px 0 60px;
            position: relative;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            z-index: 0;
        }

        .page-banner-content {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
        }

        .page-banner-text {
            flex: 1;
            min-width: 300px;
        }

        .page-banner-text h1 {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.3;
            letter-spacing: -0.5px;
        }

        .page-banner-text h1 span {
            color: var(--accent-cyan);
        }

        .page-banner-text p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 24px;
            line-height: 1.7;
        }

        .badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 24px;
        }

        .badge {
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid var(--border-color);
            color: var(--accent-cyan);
        }

        .badge i {
            font-size: 0.9rem;
        }

        .badge.gold {
            background: rgba(255, 215, 0, 0.1);
            border-color: rgba(255, 215, 0, 0.3);
            color: var(--accent-gold);
        }

        .page-banner-image {
            flex: 0 0 360px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-glow);
            border: 1px solid var(--border-color);
        }

        .btn-cta-large {
            padding: 14px 36px;
            border-radius: 28px;
            font-size: 1.05rem;
            font-weight: 700;
            background: var(--accent-blue);
            color: #FFFFFF;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
            box-shadow: var(--shadow-blue);
            letter-spacing: 0.3px;
        }

        .btn-cta-large:hover {
            background: #0040CC;
            box-shadow: 0 0 30px rgba(0, 82, 255, 0.7);
            transform: translateY(-2px);
        }

        .section {
            padding: 80px 0;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            margin-bottom: 40px;
        }

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

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            transition: var(--transition);
            position: relative;
        }

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

        .feature-card-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: rgba(0, 240, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent-cyan);
            margin-bottom: 20px;
        }

        .feature-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .process-steps {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }

        .step-item {
            flex: 1;
            min-width: 220px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: left;
            position: relative;
            transition: var(--transition);
        }

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

        .step-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--accent-cyan);
            opacity: 0.4;
            margin-bottom: 12px;
            line-height: 1;
        }

        .step-item h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        .payout-showcase {
            background: var(--bg-secondary);
            border-radius: var(--radius-xl);
            padding: 48px 32px;
            border: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }

        .payout-showcase::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.15) 0%, transparent 70%);
            border-radius: 50%;
        }

        .payout-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
            position: relative;
            z-index: 1;
        }

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

        .payout-item .amount {
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent-cyan);
            margin-bottom: 6px;
        }

        .payout-item .label {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .faq-section {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-question {
            padding: 20px 24px;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            user-select: none;
        }

        .faq-question i {
            transition: transform 0.3s;
            color: var(--accent-cyan);
        }

        .faq-answer {
            padding: 0 24px 20px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }

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

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

        .cta-strip {
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.2) 0%, rgba(0, 240, 255, 0.1) 100%);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            padding: 48px 32px;
            text-align: left;
            display: flex;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
        }

        .cta-strip-text {
            flex: 1;
            min-width: 260px;
        }

        .cta-strip-text h3 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .cta-strip-text p {
            font-size: 1rem;
            color: var(--text-secondary);
        }

        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 32px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

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

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

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

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

        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid var(--border-color);
        }

        .footer-bottom p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 12px;
        }

        .footer-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .footer-badge {
            padding: 4px 14px;
            border-radius: 16px;
            font-size: 0.8rem;
            font-weight: 600;
            background: rgba(0, 240, 255, 0.06);
            border: 1px solid var(--border-color);
            color: var(--accent-cyan);
        }

        .fab-left {
            position: fixed;
            left: 20px;
            bottom: 100px;
            z-index: 999;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(13, 17, 30, 0.8);
            backdrop-filter: blur(12px);
            border: 2px solid var(--accent-cyan);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.3rem;
            cursor: pointer;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
            transition: var(--transition);
            animation: fabPulse 2s infinite;
        }

        .fab-left:hover {
            background: var(--accent-cyan);
            color: var(--bg-primary);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.7);
            transform: scale(1.1);
        }

        @keyframes fabPulse {
            0%,
            100% {
                box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
            }
            50% {
                box-shadow: 0 0 35px rgba(0, 240, 255, 0.7);
            }
        }

        @media screen and (max-width: 1024px) {
            .page-banner-text h1 {
                font-size: 2rem;
            }
            .page-banner-image {
                flex: 0 0 280px;
            }
            .section {
                padding: 60px 0;
            }
        }

        @media screen and (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .page-banner-content {
                flex-direction: column;
                text-align: left;
                gap: 24px;
            }
            .page-banner-image {
                flex: 0 0 auto;
                width: 100%;
                max-width: 400px;
            }
            .page-banner-text h1 {
                font-size: 1.8rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .cta-strip {
                flex-direction: column;
                text-align: left;
            }
            .fab-left {
                left: 12px;
                bottom: 80px;
                width: 46px;
                height: 46px;
                font-size: 1.1rem;
            }
        }

        @media screen and (max-width: 520px) {
            .header-inner {
                height: 60px;
            }
            .logo {
                font-size: 1rem;
                max-width: 200px;
            }
            .page-banner {
                padding: 80px 0 40px;
            }
            .page-banner-text h1 {
                font-size: 1.5rem;
            }
            .section {
                padding: 40px 0;
            }
            .feature-grid,
            .payout-grid {
                grid-template-columns: 1fr;
            }
            .process-steps {
                flex-direction: column;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0D111E;
            --bg-secondary: #161B2A;
            --bg-card: #1A2035;
            --bg-glass: rgba(26, 32, 53, 0.8);
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --accent-green: #00E676;
            --accent-red: #FF1744;
            --accent-gold: #FFD700;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #8892B0;
            --border-color: rgba(0, 240, 255, 0.15);
            --border-glow: rgba(0, 240, 255, 0.3);
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 20px rgba(0, 240, 255, 0.2);
            --shadow-blue: 0 0 15px rgba(0, 82, 255, 0.4);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

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

        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(13, 17, 30, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(13, 17, 30, 0.95);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .logo {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            line-height: 1.2;
            max-width: 320px;
        }

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

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

        .nav-links a {
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
            letter-spacing: 0.2px;
        }

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

        .nav-links a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
            font-weight: 600;
        }

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

        .btn-login {
            padding: 8px 20px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            background: transparent;
            color: var(--text-primary);
            border: 1px solid rgba(255, 255, 255, 0.25);
            transition: var(--transition);
            white-space: nowrap;
        }

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

        .btn-signup {
            padding: 8px 22px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            background: var(--accent-blue);
            color: #FFFFFF;
            transition: var(--transition);
            white-space: nowrap;
            box-shadow: var(--shadow-blue);
        }

        .btn-signup:hover {
            background: #0040CC;
            box-shadow: 0 0 25px rgba(0, 82, 255, 0.6);
            transform: translateY(-1px);
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.5rem;
            padding: 8px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

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

        /* Mobile Menu */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            width: 100%;
            background: rgba(13, 17, 30, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            padding: 20px;
            z-index: 999;
            flex-direction: column;
            gap: 8px;
        }

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

        .mobile-menu a {
            padding: 12px 16px;
            border-radius: 12px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            display: block;
            text-align: center;
        }

        .mobile-menu a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
        }

        .mobile-menu a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
        }

        .mobile-menu .mobile-actions {
            display: flex;
            gap: 10px;
            margin-top: 8px;
            flex-direction: column;
        }

        .mobile-menu .btn-login,
        .mobile-menu .btn-signup {
            display: block;
            text-align: center;
            width: 100%;
            padding: 12px 20px;
        }

        /* Banner Section */
        .banner-section {
            padding-top: 120px;
            padding-bottom: 60px;
            background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-card) 100%);
            position: relative;
            overflow: hidden;
        }

        .banner-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at 30% 50%, rgba(0, 240, 255, 0.05) 0%, transparent 50%);
            pointer-events: none;
        }

        .banner-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .banner-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-cyan) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .banner-content p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 30px;
            line-height: 1.7;
            max-width: 540px;
        }

        .banner-features {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 30px;
        }

        .feature-chip {
            padding: 8px 18px;
            border-radius: 20px;
            background: var(--bg-glass);
            border: 1px solid var(--border-color);
            color: var(--accent-cyan);
            font-size: 0.85rem;
            font-weight: 500;
            white-space: nowrap;
            backdrop-filter: blur(10px);
        }

        .banner-cta-group {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }

        .btn-primary {
            padding: 14px 32px;
            border-radius: 28px;
            font-size: 1rem;
            font-weight: 600;
            background: var(--accent-blue);
            color: #FFFFFF;
            box-shadow: var(--shadow-blue);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary:hover {
            background: #0040CC;
            box-shadow: 0 0 30px rgba(0, 82, 255, 0.7);
            transform: translateY(-2px);
        }

        .btn-outline {
            padding: 14px 32px;
            border-radius: 28px;
            font-size: 1rem;
            font-weight: 600;
            background: transparent;
            color: var(--accent-cyan);
            border: 2px solid var(--accent-cyan);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

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

        .banner-image {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 2px solid var(--border-glow);
            box-shadow: 0 0 40px rgba(0, 240, 255, 0.15);
        }

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

        .banner-image .img-overlay-badge {
            position: absolute;
            top: 20px;
            right: 20px;
            padding: 6px 16px;
            border-radius: 20px;
            background: rgba(0, 230, 118, 0.9);
            color: #000;
            font-weight: 700;
            font-size: 0.85rem;
            backdrop-filter: blur(10px);
        }

        /* Comparison Section */
        .comparison-section {
            padding: 80px 0;
            background: var(--bg-secondary);
        }

        .section-header {
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .section-header p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
        }

        .comparison-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .comparison-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 30px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
        }

        .comparison-card.featured {
            border: 2px solid var(--accent-cyan);
            box-shadow: var(--shadow-glow);
            transform: scale(1.03);
        }

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

        .comparison-card.featured:hover {
            transform: scale(1.03) translateY(-4px);
        }

        .card-highlight-badge {
            position: absolute;
            top: -14px;
            right: 20px;
            padding: 6px 18px;
            border-radius: 20px;
            background: var(--accent-cyan);
            color: #000;
            font-weight: 700;
            font-size: 0.8rem;
            white-space: nowrap;
        }

        .comparison-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .comparison-card .card-meta {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .comparison-card ul {
            list-style: none;
            padding: 0;
            margin-bottom: 24px;
        }

        .comparison-card ul li {
            padding: 6px 0;
            color: var(--text-secondary);
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .comparison-card ul li i {
            color: var(--accent-green);
            font-size: 0.9rem;
        }

        .comparison-card ul li i.fa-times-circle {
            color: var(--accent-red);
        }

        .btn-card-cta {
            display: block;
            width: 100%;
            padding: 12px;
            border-radius: 25px;
            font-weight: 600;
            text-align: center;
            background: var(--accent-blue);
            color: #FFF;
            box-shadow: var(--shadow-blue);
            transition: var(--transition);
        }

        .btn-card-cta:hover {
            background: #0040CC;
            transform: translateY(-1px);
        }

        /* Steps Section */
        .steps-section {
            padding: 80px 0;
            background: var(--bg-primary);
        }

        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 40px;
            max-width: 800px;
            margin: 0 auto;
        }

        .step-item {
            display: flex;
            gap: 24px;
            align-items: flex-start;
        }

        .step-number {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 800;
            color: #FFF;
        }

        .step-content h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .step-content p {
            color: var(--text-secondary);
            line-height: 1.6;
            font-size: 0.95rem;
        }

        /* Features Showcase */
        .features-showcase {
            padding: 80px 0;
            background: var(--bg-secondary);
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }

        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 30px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(0, 240, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-cyan);
            margin-bottom: 16px;
        }

        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* FAQ Section */
        .faq-section {
            padding: 80px 0;
            background: var(--bg-primary);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 800px;
            margin: 0 auto;
        }

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

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

        .faq-question {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-primary);
            background: transparent;
            width: 100%;
            text-align: left;
        }

        .faq-question i {
            color: var(--accent-cyan);
            font-size: 1.1rem;
            transition: var(--transition);
        }

        .faq-answer {
            padding: 0 24px 20px;
            display: none;
            color: var(--text-secondary);
            line-height: 1.7;
            font-size: 0.95rem;
        }

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

        /* CTA Section */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-secondary) 100%);
            text-align: center;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .cta-section p {
            color: var(--text-secondary);
            margin-bottom: 30px;
            font-size: 1.05rem;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            padding: 60px 0 30px;
            border-top: 1px solid var(--border-color);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-cyan);
            margin-bottom: 16px;
        }

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

        .footer-col ul li {
            margin-bottom: 8px;
        }

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

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

        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid var(--border-color);
        }

        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-bottom: 16px;
        }

        .footer-badges {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .footer-badge {
            padding: 4px 14px;
            border-radius: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            color: var(--text-muted);
            font-size: 0.8rem;
            white-space: nowrap;
        }

        /* FAB */
        .fab {
            position: fixed;
            left: 24px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #FFF;
            cursor: pointer;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
            transition: var(--transition);
            opacity: 0.7;
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.7);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .banner-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .banner-content h1 {
                font-size: 2.2rem;
            }

            .comparison-card.featured {
                transform: none;
            }

            .comparison-card.featured:hover {
                transform: translateY(-4px);
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .header-actions {
                display: none;
            }

            .mobile-toggle {
                display: block;
            }

            .mobile-menu .header-actions-mobile {
                display: flex;
                gap: 10px;
                flex-direction: column;
            }

            .banner-content h1 {
                font-size: 1.8rem;
            }

            .banner-features {
                gap: 10px;
            }

            .header-inner {
                padding: 0 16px;
            }

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

            .section-header h2 {
                font-size: 1.7rem;
            }

            .cta-section h2 {
                font-size: 1.5rem;
            }

            .fab {
                left: 16px;
                bottom: 80px;
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .banner-content h1 {
                font-size: 1.5rem;
            }

            .banner-cta-group {
                flex-direction: column;
            }

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

            .logo {
                font-size: 1rem;
                max-width: 200px;
            }
        }

/* roulang page: category4 */
:root {
            --bg-primary: #0D111E;
            --bg-secondary: #161B2A;
            --bg-card: #1A2035;
            --bg-glass: rgba(26, 32, 53, 0.8);
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --accent-green: #00E676;
            --accent-red: #FF1744;
            --accent-gold: #FFD700;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #8892B0;
            --border-color: rgba(0, 240, 255, 0.15);
            --border-glow: rgba(0, 240, 255, 0.3);
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 20px rgba(0, 240, 255, 0.2);
            --shadow-blue: 0 0 15px rgba(0, 82, 255, 0.4);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

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

        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(13, 17, 30, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(13, 17, 30, 0.95);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .logo {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            line-height: 1.2;
            max-width: 320px;
        }

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

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

        .nav-links a {
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
            letter-spacing: 0.2px;
        }

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

        .nav-links a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
            font-weight: 600;
        }

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

        .btn-login {
            padding: 8px 20px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            background: transparent;
            color: var(--text-primary);
            border: 1px solid rgba(255, 255, 255, 0.25);
            transition: var(--transition);
            white-space: nowrap;
        }

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

        .btn-signup {
            padding: 8px 22px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            background: var(--accent-blue);
            color: #FFFFFF;
            transition: var(--transition);
            white-space: nowrap;
            box-shadow: var(--shadow-blue);
        }

        .btn-signup:hover {
            background: #0040CC;
            box-shadow: 0 0 25px rgba(0, 82, 255, 0.6);
            transform: translateY(-1px);
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.5rem;
            padding: 8px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

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

        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            width: 100%;
            background: rgba(13, 17, 30, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            padding: 20px;
            z-index: 999;
            flex-direction: column;
            gap: 8px;
        }

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

        .mobile-menu a {
            padding: 12px 16px;
            border-radius: 12px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            display: block;
            text-align: center;
        }

        .mobile-menu a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
        }

        .mobile-menu a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
        }

        .mobile-menu .mobile-actions {
            display: flex;
            gap: 10px;
            margin-top: 8px;
            flex-direction: column;
        }

        .mobile-menu .btn-login,
        .mobile-menu .btn-signup {
            display: block;
            text-align: center;
            width: 100%;
            padding: 12px 20px;
        }

        .page-banner {
            min-height: 55vh;
            display: flex;
            align-items: center;
            padding-top: 100px;
            padding-bottom: 60px;
            position: relative;
            background-image: url('/assets/images/backpic/back-3.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(180deg, rgba(13, 17, 30, 0.65) 0%, rgba(13, 17, 30, 0.9) 100%);
            z-index: 1;
        }

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

        .banner-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(0, 240, 255, 0.12);
            border: 1px solid var(--border-glow);
            border-radius: 20px;
            color: var(--accent-cyan);
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .banner-content h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--text-primary);
            letter-spacing: -0.5px;
        }

        .banner-content .accent-text {
            color: var(--accent-cyan);
        }

        .banner-content p {
            font-size: 1.15rem;
            color: var(--text-secondary);
            margin-bottom: 30px;
            line-height: 1.7;
            max-width: 650px;
        }

        .banner-stats {
            display: flex;
            gap: 30px;
            margin-bottom: 30px;
            flex-wrap: wrap;
        }

        .stat-item {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent-cyan);
            line-height: 1;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .btn-glow {
            display: inline-block;
            padding: 14px 36px;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1.05rem;
            background: var(--accent-blue);
            color: #FFFFFF;
            box-shadow: var(--shadow-blue);
            transition: var(--transition);
            letter-spacing: 0.3px;
        }

        .btn-glow:hover {
            background: #0040CC;
            box-shadow: 0 0 30px rgba(0, 82, 255, 0.7);
            transform: translateY(-2px);
            color: #FFFFFF;
        }

        .section {
            padding: 80px 0;
        }

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

        .section-label {
            display: inline-block;
            padding: 5px 14px;
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid rgba(0, 240, 255, 0.2);
            border-radius: 20px;
            color: var(--accent-cyan);
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            text-align: left;
        }

        .section-desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            line-height: 1.7;
            text-align: left;
            max-width: 700px;
        }

        .guide-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

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

        .guide-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(180deg, var(--accent-blue), var(--accent-cyan));
            border-radius: 4px 0 0 4px;
        }

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

        .guide-step {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid var(--border-glow);
            border-radius: 50%;
            color: var(--accent-cyan);
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 16px;
        }

        .guide-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .guide-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .tips-list {
            list-style: none;
            padding: 0;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .tips-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: var(--transition);
        }

        .tips-list li:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow);
        }

        .tips-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(0, 240, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.2rem;
        }

        .tips-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text-primary);
        }

        .tips-content p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        .strategy-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
        }

        .strategy-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--bg-card);
            min-width: 700px;
        }

        .strategy-table th {
            background: rgba(0, 82, 255, 0.15);
            color: var(--accent-cyan);
            font-weight: 700;
            padding: 16px 20px;
            text-align: left;
            font-size: 0.95rem;
            border-bottom: 1px solid var(--border-color);
        }

        .strategy-table td {
            padding: 14px 20px;
            color: var(--text-secondary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 0.9rem;
            line-height: 1.5;
        }

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

        .risk-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 12px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .risk-low {
            background: rgba(0, 230, 118, 0.15);
            color: var(--accent-green);
        }

        .risk-medium {
            background: rgba(255, 215, 0, 0.15);
            color: var(--accent-gold);
        }

        .risk-high {
            background: rgba(255, 23, 68, 0.15);
            color: var(--accent-red);
        }

        .faq-section {
            padding: 80px 0;
            background: var(--bg-secondary);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

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

        .faq-question {
            width: 100%;
            background: transparent;
            color: var(--text-primary);
            padding: 20px 24px;
            font-size: 1.05rem;
            font-weight: 600;
            text-align: left;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }

        .faq-question i {
            color: var(--accent-cyan);
            transition: var(--transition);
            font-size: 1rem;
        }

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

        .faq-answer p {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            line-height: 1.7;
            font-size: 0.95rem;
            margin: 0;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        .cta-section {
            padding: 80px 0;
            text-align: center;
        }

        .cta-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-xl);
            padding: 50px 40px;
            max-width: 800px;
            margin: 0 auto;
            box-shadow: var(--shadow-glow);
        }

        .cta-card h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .cta-card p {
            color: var(--text-secondary);
            margin-bottom: 30px;
            font-size: 1.05rem;
            line-height: 1.7;
        }

        .cta-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .btn-outline-glow {
            display: inline-block;
            padding: 14px 32px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid var(--accent-cyan);
            color: var(--accent-cyan);
            background: transparent;
            transition: var(--transition);
        }

        .btn-outline-glow:hover {
            background: rgba(0, 240, 255, 0.1);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
            color: var(--accent-cyan);
        }

        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 50px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-bottom: 30px;
        }

        .footer-col h4 {
            color: var(--text-primary);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

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

        .footer-col ul li {
            margin-bottom: 8px;
        }

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

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

        .footer-bottom {
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-bottom: 16px;
        }

        .footer-badges {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .footer-badge {
            display: inline-block;
            padding: 5px 14px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--bg-glass);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.4rem;
            cursor: pointer;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
            transition: var(--transition);
            animation: floatFAB 3s ease-in-out infinite;
            overflow: hidden;
        }

        .fab-left::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            z-index: -1;
            animation: rotateBorder 4s linear infinite;
        }

        .fab-left:hover {
            transform: scale(1.1);
            box-shadow: 0 0 35px rgba(0, 240, 255, 0.6);
            opacity: 1;
        }

        .fab-left .fab-notification {
            position: absolute;
            top: 4px;
            right: 6px;
            width: 10px;
            height: 10px;
            background: var(--accent-red);
            border-radius: 50%;
            animation: blink 1.2s ease-in-out infinite;
        }

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

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

        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.2; }
        }

        @media (max-width: 1024px) {
            .nav-links {
                gap: 4px;
            }
            .nav-links a {
                padding: 8px 12px;
                font-size: 0.85rem;
            }
            .banner-content h1 {
                font-size: 2.4rem;
            }
            .guide-grid,
            .tips-list {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-links,
            .header-actions {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .banner-content h1 {
                font-size: 1.9rem;
            }
            .banner-stats {
                gap: 16px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section {
                padding: 60px 0;
            }
            .cta-card {
                padding: 32px 24px;
            }
            .cta-card h2 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .fab-left {
                width: 46px;
                height: 46px;
                font-size: 1.2rem;
                left: 12px;
                bottom: 80px;
            }
        }

        @media (max-width: 520px) {
            .logo {
                font-size: 0.95rem;
                max-width: 220px;
            }
            .banner-content h1 {
                font-size: 1.6rem;
            }
            .banner-content p {
                font-size: 1rem;
            }
            .btn-glow,
            .btn-outline-glow {
                width: 100%;
                text-align: center;
                padding: 12px 24px;
                font-size: 0.95rem;
            }
            .guide-card,
            .tips-list li {
                padding: 18px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0D111E;
            --bg-secondary: #161B2A;
            --bg-card: #1A2035;
            --bg-glass: rgba(26, 32, 53, 0.8);
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --accent-green: #00E676;
            --accent-red: #FF1744;
            --accent-gold: #FFD700;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #8892B0;
            --border-color: rgba(0, 240, 255, 0.15);
            --border-glow: rgba(0, 240, 255, 0.3);
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 20px rgba(0, 240, 255, 0.2);
            --shadow-blue: 0 0 15px rgba(0, 82, 255, 0.4);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

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

        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(13, 17, 30, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(13, 17, 30, 0.95);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .logo {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            line-height: 1.2;
            max-width: 320px;
        }

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

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

        .nav-links a {
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
            letter-spacing: 0.2px;
        }

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

        .nav-links a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
            font-weight: 600;
        }

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

        .btn-login {
            padding: 8px 20px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            background: transparent;
            color: var(--text-primary);
            border: 1px solid rgba(255, 255, 255, 0.25);
            transition: var(--transition);
            white-space: nowrap;
        }

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

        .btn-signup {
            padding: 8px 22px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            background: var(--accent-blue);
            color: #FFFFFF;
            transition: var(--transition);
            white-space: nowrap;
            box-shadow: var(--shadow-blue);
        }

        .btn-signup:hover {
            background: #0040CC;
            box-shadow: 0 0 25px rgba(0, 82, 255, 0.6);
            transform: translateY(-1px);
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.5rem;
            padding: 8px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

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

        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            width: 100%;
            background: rgba(13, 17, 30, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            padding: 20px;
            z-index: 999;
            flex-direction: column;
            gap: 8px;
        }

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

        .mobile-menu a {
            padding: 12px 16px;
            border-radius: 12px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            display: block;
            text-align: center;
        }

        .mobile-menu a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
        }

        .mobile-menu a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
        }

        .mobile-menu .mobile-actions {
            display: flex;
            gap: 10px;
            margin-top: 8px;
            flex-direction: column;
        }

        .mobile-menu .btn-login,
        .mobile-menu .btn-signup {
            display: block;
            text-align: center;
            width: 100%;
            padding: 12px 20px;
        }

        .page-banner {
            padding-top: 140px;
            padding-bottom: 80px;
            position: relative;
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.1) 0%, rgba(0, 240, 255, 0.1) 50%, rgba(0, 230, 118, 0.05) 100%);
            border-bottom: 1px solid var(--border-color);
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            pointer-events: none;
        }

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

        .banner-content h1 {
            font-size: 3rem;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #FFFFFF 0%, #CBD5E1 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -1px;
        }

        .banner-content .subtitle {
            font-size: 1.2rem;
            color: var(--text-secondary);
            margin-bottom: 24px;
            line-height: 1.7;
        }

        .banner-stats {
            display: flex;
            gap: 32px;
            margin-top: 32px;
            flex-wrap: wrap;
        }

        .stat-item {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .stat-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(0, 240, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-cyan);
            border: 1px solid var(--border-glow);
        }

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

        .stat-value {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--accent-cyan);
        }

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

        .icon-matrix {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

        .matrix-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--bg-glass);
            backdrop-filter: blur(10px);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            border: 1px solid var(--border-color);
            color: var(--accent-cyan);
            transition: var(--transition);
        }

        .matrix-icon:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        .status-bar {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 16px;
            background: var(--bg-glass);
            border-radius: 20px;
            border: 1px solid var(--border-color);
            margin-bottom: 24px;
            max-width: 360px;
        }

        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-green);
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; box-shadow: 0 0 6px var(--accent-green); }
            50% { opacity: 0.5; box-shadow: 0 0 2px var(--accent-green); }
        }

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

        .status-text strong {
            color: var(--accent-green);
        }

        .main-content {
            padding: 80px 0;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
            letter-spacing: -0.5px;
        }

        .section-desc {
            color: var(--text-secondary);
            margin-bottom: 48px;
            font-size: 1.05rem;
            line-height: 1.7;
            max-width: 700px;
        }

        .experience-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            margin-bottom: 60px;
        }

        .exp-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            cursor: pointer;
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }

        .exp-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(180deg, var(--accent-blue), var(--accent-cyan));
            border-radius: 2px 0 0 2px;
            opacity: 0;
            transition: var(--transition);
        }

        .exp-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

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

        .exp-card-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: rgba(0, 240, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-cyan);
            flex-shrink: 0;
            border: 1px solid var(--border-color);
        }

        .exp-card-content h3 {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .exp-card-content p {
            color: var(--text-secondary);
            line-height: 1.6;
            font-size: 0.95rem;
        }

        .exp-card-meta {
            display: flex;
            gap: 16px;
            margin-top: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .exp-card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .tips-section {
            background: var(--bg-secondary);
            border-radius: var(--radius-xl);
            padding: 60px 40px;
            margin-bottom: 60px;
            border: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }

        .tips-section::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -50%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .tips-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: relative;
            z-index: 2;
        }

        .tip-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 20px;
            background: var(--bg-glass);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .tip-item:hover {
            border-color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.03);
        }

        .tip-number {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--accent-blue);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: var(--shadow-blue);
        }

        .tip-content h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-primary);
        }

        .tip-content p {
            color: var(--text-secondary);
            line-height: 1.6;
            font-size: 0.95rem;
        }

        .strategies-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-bottom: 60px;
        }

        .strategy-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: var(--transition);
            position: relative;
        }

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

        .strategy-level {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 16px;
            background: rgba(0, 230, 118, 0.1);
            color: var(--accent-green);
            border: 1px solid rgba(0, 230, 118, 0.3);
        }

        .strategy-level.hard {
            background: rgba(255, 23, 68, 0.1);
            color: var(--accent-red);
            border-color: rgba(255, 23, 68, 0.3);
        }

        .strategy-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .strategy-card p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .strategy-stats {
            display: flex;
            gap: 12px;
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--border-color);
        }

        .strategy-stat {
            display: flex;
            flex-direction: column;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .strategy-stat strong {
            color: var(--accent-cyan);
            font-size: 1rem;
        }

        .faq-section {
            margin-bottom: 60px;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

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

        .faq-question {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-primary);
            background: transparent;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }

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

        .faq-answer {
            padding: 0 24px 20px 24px;
            color: var(--text-secondary);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        .cta-section {
            background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-cyan) 100%);
            border-radius: var(--radius-xl);
            padding: 60px 40px;
            text-align: center;
            margin-bottom: 60px;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-3.jpg') center/cover;
            opacity: 0.1;
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 2;
        }

        .cta-content h2 {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: #FFFFFF;
        }

        .cta-content p {
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 32px;
            font-size: 1.1rem;
            line-height: 1.7;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta-lg {
            display: inline-block;
            padding: 16px 40px;
            border-radius: 28px;
            font-size: 1.1rem;
            font-weight: 700;
            background: var(--accent-gold);
            color: #0D111E;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.5);
            letter-spacing: 0.5px;
        }

        .btn-cta-lg:hover {
            background: #FFE44D;
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(255, 215, 0, 0.7);
        }

        .bottom-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: rgba(13, 17, 30, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-top: 1px solid var(--border-glow);
            padding: 12px 20px;
            z-index: 998;
            display: none;
        }

        .bottom-cta-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .bottom-cta-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        .bottom-cta-text strong {
            color: var(--accent-cyan);
        }

        .bottom-cta-btn {
            padding: 10px 24px;
            border-radius: 20px;
            font-weight: 600;
            background: var(--accent-blue);
            color: #FFFFFF;
            white-space: nowrap;
            box-shadow: var(--shadow-blue);
            transition: var(--transition);
            font-size: 0.9rem;
        }

        .bottom-cta-btn:hover {
            background: #0040CC;
        }

        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

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

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

        .footer-bottom {
            padding-top: 30px;
            border-top: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .footer-badges {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .footer-badge {
            padding: 4px 12px;
            border-radius: 12px;
            background: rgba(0, 240, 255, 0.05);
            border: 1px solid var(--border-color);
            font-size: 0.8rem;
            color: var(--text-secondary);
        }

        .fab-left {
            position: fixed;
            left: 20px;
            bottom: 96px;
            z-index: 997;
        }

        .fab-btn {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--bg-glass);
            backdrop-filter: blur(20px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-cyan);
            transition: var(--transition);
            position: relative;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            animation: float-fab 3s ease-in-out infinite;
        }

        .fab-btn::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 50%;
            padding: 2px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
        }

        .fab-btn:hover {
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.8);
        }

        .fab-notification {
            position: absolute;
            top: 4px;
            right: 4px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent-red);
            animation: blink-dot 1.5s infinite;
        }

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

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

        @media (max-width: 1024px) {
            .experience-grid {
                grid-template-columns: 1fr;
            }
            .strategies-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .banner-content h1 {
                font-size: 2.4rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .header-actions {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .mobile-menu .header-actions {
                display: flex;
            }
            .page-banner {
                padding-top: 120px;
                padding-bottom: 60px;
            }
            .banner-content h1 {
                font-size: 2rem;
            }
            .banner-content .subtitle {
                font-size: 1rem;
            }
            .banner-stats {
                gap: 16px;
            }
            .strategies-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .tips-section {
                padding: 40px 20px;
            }
            .cta-section {
                padding: 40px 20px;
            }
            .cta-content h2 {
                font-size: 1.6rem;
            }
            .bottom-cta-bar {
                display: block;
            }
            .fab-left {
                bottom: 120px;
            }
            .exp-card {
                flex-direction: column;
            }
            .section-title {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                height: 60px;
            }
            .logo {
                font-size: 1rem;
                max-width: 220px;
            }
            .banner-content h1 {
                font-size: 1.6rem;
            }
            .banner-stats {
                flex-direction: column;
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .cta-content h2 {
                font-size: 1.4rem;
            }
        }