/* roulang page: index */
:root {
            --bg-deep: #081229;
            --bg-card: rgba(15, 25, 55, 0.75);
            --accent-blue: #2563EB;
            --accent-cyan: #38BDF8;
            --text-primary: #F8FAFC;
            --text-secondary: #94A3B8;
            --border-subtle: rgba(148, 163, 184, 0.15);
            --shadow-glow: 0 0 20px rgba(37, 99, 235, 0.35);
            --radius-md: 0.75rem;
            --radius-lg: 1.25rem;
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            background-color: #030712;
            background-image: radial-gradient(ellipse at 30% 10%, #081229 0%, #030712 70%);
            font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        .container { max-width: 1280px; margin: 0 auto; padding: 0 1.5rem; }

        /* Navigation */
        .nav-glass {
            background: rgba(3, 7, 18, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
        }
        .nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
        .logo-text {
            font-weight: 800; font-size: 1.25rem; letter-spacing: -0.02em;
            background: linear-gradient(135deg, #60A5FA 0%, #38BDF8 70%, #A5F3FC 100%);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
        }
        .nav-links { display: flex; gap: 2rem; align-items: center; }
        .nav-links a {
            color: #CBD5E1; text-decoration: none; font-weight: 500; font-size: 0.95rem;
            transition: color 0.2s; position: relative; padding: 0.25rem 0;
        }
        .nav-links a::after {
            content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px;
            background: var(--accent-cyan); border-radius: 2px; transition: width 0.25s;
        }
        .nav-links a:hover, .nav-links a.active { color: #F8FAFC; }
        .nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
        .btn-login {
            padding: 0.45rem 1.25rem; border-radius: 0.5rem; font-weight: 600; font-size: 0.9rem;
            background: transparent; border: 1px solid rgba(148, 163, 184, 0.5); color: #E2E8F0;
            transition: all 0.25s; cursor: pointer;
        }
        .btn-login:hover { border-color: #38BDF8; color: #fff; }
        .btn-signup {
            padding: 0.45rem 1.5rem; border-radius: 0.5rem; font-weight: 700; font-size: 0.9rem;
            background: linear-gradient(135deg, #2563EB, #06B6D4); color: #fff; border: none;
            box-shadow: 0 0 16px rgba(37, 99, 235, 0.3); transition: all 0.25s; cursor: pointer;
        }
        .btn-signup:hover { box-shadow: 0 0 28px rgba(37, 99, 235, 0.5); transform: translateY(-1px); }
        .mobile-menu-btn { display: none; background: none; border: none; color: #F8FAFC; font-size: 1.5rem; cursor: pointer; }
        .mobile-menu {
            display: none; flex-direction: column; background: rgba(8, 18, 41, 0.98);
            backdrop-filter: blur(20px); position: absolute; top: 64px; left: 0; width: 100%;
            border-bottom: 1px solid var(--border-subtle); padding: 1rem 1.5rem; gap: 0.75rem;
        }
        .mobile-menu a { color: #CBD5E1; text-decoration: none; padding: 0.6rem 0; font-weight: 500; border-bottom: 1px solid var(--border-subtle); }

        /* Hero */
        .hero-section {
            padding: 7rem 0 5rem; position: relative; overflow: hidden;
            background: url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
        }
        .hero-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(3,7,18,0.7) 0%, rgba(8,18,41,0.88) 100%); }
        .hero-content { position: relative; z-index: 2; max-width: 900px; }
        .hero-timer {
            display: inline-flex; align-items: center; gap: 0.5rem; background: rgba(220,38,38,0.25);
            border: 1px solid rgba(220,38,38,0.5); border-radius: 2rem; padding: 0.35rem 1.25rem;
            font-weight: 700; font-size: 0.95rem; color: #FCA5A5; margin-bottom: 1.5rem;
            backdrop-filter: blur(8px);
        }
        .hero-timer i { color: #EF4444; }
        .hero-title { font-size: clamp(2.4rem, 6vw, 3.8rem); font-weight: 900; line-height: 1.15; margin-bottom: 1.5rem; letter-spacing: -0.03em; }
        .hero-title span { color: #38BDF8; }
        .hero-desc { font-size: 1.1rem; color: #CBD5E1; max-width: 640px; line-height: 1.7; margin-bottom: 2rem; }
        .hero-btns { display: flex; flex-wrap: wrap; gap: 1rem; }
        .btn-primary {
            padding: 0.85rem 2.25rem; border-radius: 0.75rem; font-weight: 700; font-size: 1.05rem;
            text-decoration: none; display: inline-flex; align-items: center; gap: 0.5rem;
            background: linear-gradient(135deg, #2563EB, #06B6D4); color: #fff;
            box-shadow: 0 0 24px rgba(37, 99, 235, 0.4); transition: all 0.3s;
        }
        .btn-primary:hover { box-shadow: 0 0 40px rgba(37, 99, 235, 0.65); transform: translateY(-2px); }
        .btn-outline {
            padding: 0.85rem 2.25rem; border-radius: 0.75rem; font-weight: 700; font-size: 1.05rem;
            text-decoration: none; display: inline-flex; align-items: center; gap: 0.5rem;
            border: 1.5px solid #38BDF8; color: #38BDF8; background: rgba(56,189,248,0.06);
            transition: all 0.3s;
        }
        .btn-outline:hover { background: rgba(56,189,248,0.18); box-shadow: 0 0 18px rgba(56,189,248,0.3); }

        /* Section */
        .section { padding: 4.5rem 0; }
        .section-header { margin-bottom: 3rem; }
        .section-label {
            display: inline-block; padding: 0.3rem 1rem; border-radius: 2rem;
            background: rgba(37,99,235,0.15); color: #60A5FA; font-weight: 700; font-size: 0.8rem;
            letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 0.75rem;
        }
        .section-title { font-size: clamp(1.8rem, 4.5vw, 2.4rem); font-weight: 800; line-height: 1.3; color: #F8FAFC; }
        .section-desc { color: #94A3B8; font-size: 1rem; margin-top: 0.75rem; max-width: 700px; }

        /* KPI Board */
        .kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
        .kpi-card {
            background: var(--bg-card); backdrop-filter: blur(12px); border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg); padding: 1.8rem 1.5rem; text-align: center;
            transition: all 0.3s;
        }
        .kpi-card:hover { border-color: rgba(56,189,248,0.35); box-shadow: var(--shadow-glow); transform: translateY(-3px); }
        .kpi-number { font-size: 2.2rem; font-weight: 900; color: #38BDF8; }
        .kpi-label { color: #94A3B8; font-size: 0.9rem; margin-top: 0.4rem; }

        /* Service Matrix */
        .service-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; }
        .service-card {
            background: var(--bg-card); backdrop-filter: blur(10px); border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg); padding: 1.8rem; transition: all 0.3s;
        }
        .service-card:hover { border-color: #2563EB; box-shadow: 0 0 24px rgba(37,99,235,0.2); }
        .service-icon { width: 48px; height: 48px; border-radius: 0.75rem; background: rgba(37,99,235,0.2); display: flex; align-items: center; justify-content: center; color: #60A5FA; font-size: 1.4rem; margin-bottom: 1rem; }
        .service-title { font-weight: 700; font-size: 1.1rem; color: #F8FAFC; margin-bottom: 0.5rem; }
        .service-desc { color: #94A3B8; font-size: 0.9rem; line-height: 1.65; }

        /* Comparison Table */
        .compare-table { width: 100%; border-collapse: collapse; border-radius: var(--radius-lg); overflow: hidden; }
        .compare-table th { background: rgba(37,99,235,0.2); padding: 1rem 1.25rem; text-align: left; font-weight: 700; color: #60A5FA; }
        .compare-table td { padding: 1rem 1.25rem; border-bottom: 1px solid var(--border-subtle); color: #CBD5E1; }
        .compare-table tr:hover td { background: rgba(15,25,55,0.5); }
        .badge-win { background: #065F46; color: #6EE7B7; padding: 0.2rem 0.7rem; border-radius: 1rem; font-weight: 600; font-size: 0.8rem; }

        /* Milestones */
        .timeline { position: relative; padding-left: 2.5rem; }
        .timeline::before { content: ''; position: absolute; left: 12px; top: 0; bottom: 0; width: 2px; background: #2563EB; }
        .tl-item { position: relative; margin-bottom: 2rem; }
        .tl-item::before { content: ''; position: absolute; left: -2.5rem; top: 6px; width: 14px; height: 14px; background: #38BDF8; border-radius: 50%; border: 3px solid #081229; box-shadow: 0 0 12px #38BDF8; }
        .tl-year { font-weight: 800; color: #60A5FA; font-size: 0.95rem; }
        .tl-title { font-weight: 700; color: #F8FAFC; font-size: 1.1rem; margin: 0.2rem 0; }
        .tl-desc { color: #94A3B8; font-size: 0.9rem; }

        /* CMS News Area */
        .news-layout { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }
        .news-main .news-item {
            display: flex; gap: 1.25rem; padding: 1.25rem 0; border-bottom: 1px solid var(--border-subtle);
            transition: all 0.2s;
        }
        .news-main .news-item:hover { background: rgba(37,99,235,0.05); padding-left: 0.5rem; border-radius: 0.5rem; }
        .news-thumb { width: 100px; height: 70px; border-radius: 0.5rem; object-fit: cover; flex-shrink: 0; }
        .news-info h4 { font-weight: 700; color: #F8FAFC; font-size: 1rem; margin-bottom: 0.3rem; }
        .news-info p { color: #94A3B8; font-size: 0.85rem; line-height: 1.5; }
        .news-date { color: #64748B; font-size: 0.75rem; margin-top: 0.35rem; }
        .news-sidebar { background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: 1.5rem; }
        .sidebar-title { font-weight: 700; color: #38BDF8; margin-bottom: 1rem; font-size: 1.05rem; }
        .sidebar-item { padding: 0.7rem 0; border-bottom: 1px solid var(--border-subtle); }
        .sidebar-item:last-child { border-bottom: none; }
        .sidebar-item a { color: #CBD5E1; text-decoration: none; font-size: 0.9rem; transition: color 0.2s; }
        .sidebar-item a:hover { color: #38BDF8; }

        /* Trust & Security */
        .trust-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.5rem; }
        .trust-card { text-align: center; padding: 1.5rem; }
        .trust-icon { font-size: 2.5rem; color: #38BDF8; margin-bottom: 0.75rem; }
        .trust-title { font-weight: 700; color: #F8FAFC; font-size: 1rem; }
        .trust-desc { color: #94A3B8; font-size: 0.85rem; margin-top: 0.4rem; }

        /* Quick Answers */
        .faq-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(380px, 1fr)); gap: 1.5rem; }
        .faq-card {
            background: var(--bg-card); backdrop-filter: blur(10px); border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg); padding: 1.5rem; transition: all 0.3s;
        }
        .faq-card:hover { border-color: #2563EB; }
        .faq-q { font-weight: 700; color: #F8FAFC; font-size: 1rem; margin-bottom: 0.6rem; }
        .faq-a { color: #94A3B8; font-size: 0.9rem; line-height: 1.7; }

        /* Footer */
        .site-footer {
            background: rgba(8,18,41,0.9); border-top: 1px solid var(--border-subtle); padding: 3rem 0 2rem;
            color: #94A3B8; font-size: 0.9rem;
        }
        .footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 2rem; margin-bottom: 2rem; }
        .footer-col h5 { color: #F8FAFC; font-weight: 700; margin-bottom: 1rem; font-size: 0.95rem; }
        .footer-col a { color: #94A3B8; text-decoration: none; display: block; padding: 0.25rem 0; transition: color 0.2s; }
        .footer-col a:hover { color: #38BDF8; }
        .footer-bottom { text-align: center; padding-top: 1.5rem; border-top: 1px solid var(--border-subtle); }

        /* FAB */
        .fab {
            position: fixed; left: 1.5rem; bottom: 6rem; z-index: 900;
            width: 56px; height: 56px; border-radius: 0.9rem; background: linear-gradient(135deg, #2563EB, #06B6D4);
            display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1.5rem;
            box-shadow: 0 0 24px rgba(37,99,235,0.5); cursor: pointer; transition: all 0.3s;
        }
        .fab:hover { transform: scale(1.08); box-shadow: 0 0 36px rgba(37,99,235,0.7); }

        /* Responsive */
        @media (max-width: 1024px) {
            .kpi-grid { grid-template-columns: repeat(2, 1fr); }
            .news-layout { grid-template-columns: 1fr; }
            .faq-grid { grid-template-columns: 1fr; }
        }
        @media (max-width: 768px) {
            .nav-links { display: none; }
            .nav-actions { gap: 0.5rem; }
            .mobile-menu-btn { display: block; }
            .mobile-menu.open { display: flex; }
            .hero-section { padding: 5.5rem 0 3.5rem; }
            .kpi-grid { grid-template-columns: 1fr 1fr; gap: 1rem; }
            .compare-table { font-size: 0.8rem; }
            .compare-table th, .compare-table td { padding: 0.7rem; }
        }
        @media (max-width: 520px) {
            .kpi-grid { grid-template-columns: 1fr; }
            .hero-btns { flex-direction: column; }
            .btn-primary, .btn-outline { width: 100%; justify-content: center; }
            .nav-inner { padding: 0 1rem; }
        }

/* roulang page: article */
:root {
            --bg-deep: #081229;
            --bg-card: rgba(15, 25, 55, 0.75);
            --accent-blue: #2563EB;
            --accent-cyan: #38BDF8;
            --text-primary: #F8FAFC;
            --text-secondary: #94A3B8;
            --border-subtle: rgba(148, 163, 184, 0.15);
            --shadow-glow: 0 0 20px rgba(37, 99, 235, 0.35);
            --radius-md: 0.75rem;
            --radius-lg: 1.25rem;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            background-color: #030712;
            background-image: radial-gradient(ellipse at 30% 10%, #081229 0%, #030712 70%);
            font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        .container { max-width: 1280px; margin: 0 auto; padding: 0 1.5rem; }
        /* Navigation */
        .nav-glass {
            background: rgba(3, 7, 18, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
        }
        .nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
        .logo-text {
            font-weight: 800; font-size: 1.25rem; letter-spacing: -0.02em;
            background: linear-gradient(135deg, #60A5FA 0%, #38BDF8 70%, #A5F3FC 100%);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
        }
        .nav-links { display: flex; gap: 2rem; align-items: center; }
        .nav-links a {
            color: #CBD5E1; text-decoration: none; font-weight: 500; font-size: 0.95rem;
            transition: color 0.2s; position: relative; padding: 0.25rem 0;
        }
        .nav-links a::after {
            content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px;
            background: var(--accent-cyan); border-radius: 2px; transition: width 0.25s;
        }
        .nav-links a:hover, .nav-links a.active { color: #F8FAFC; }
        .nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
        .nav-actions { display: flex; gap: 0.75rem; align-items: center; }
        .btn-login {
            padding: 0.45rem 1.25rem; border-radius: 0.5rem; font-weight: 600; font-size: 0.9rem;
            background: transparent; border: 1px solid rgba(148, 163, 184, 0.5); color: #E2E8F0;
            transition: all 0.25s; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center;
        }
        .btn-login:hover { border-color: #38BDF8; color: #fff; }
        .btn-signup {
            padding: 0.45rem 1.5rem; border-radius: 0.5rem; font-weight: 700; font-size: 0.9rem;
            background: linear-gradient(135deg, #2563EB, #06B6D4); color: #fff; border: none;
            box-shadow: 0 0 16px rgba(37, 99, 235, 0.3); transition: all 0.25s; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center;
        }
        .btn-signup:hover { box-shadow: 0 0 28px rgba(37, 99, 235, 0.5); transform: translateY(-1px); }
        .mobile-menu-btn { display: none; background: none; border: none; color: #F8FAFC; font-size: 1.5rem; cursor: pointer; }
        .mobile-menu {
            display: none; flex-direction: column; background: rgba(8, 18, 41, 0.98);
            backdrop-filter: blur(20px); position: absolute; top: 64px; left: 0; width: 100%;
            border-bottom: 1px solid var(--border-subtle); padding: 1rem 1.5rem; gap: 0.75rem;
        }
        .mobile-menu a { color: #CBD5E1; text-decoration: none; padding: 0.6rem 0; font-weight: 500; border-bottom: 1px solid var(--border-subtle); }
        .mobile-menu .btn-login, .mobile-menu .btn-signup { display: block; text-align: center; margin-top: 0.5rem; }
        
        /* Article Page Specific */
        .article-page { padding-top: 64px; }
        .article-hero {
            position: relative; padding: 3rem 0; margin-bottom: 0;
            background: url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
        }
        .article-hero-overlay {
            position: absolute; inset: 0; 
            background: linear-gradient(180deg, rgba(3,7,18,0.85) 0%, rgba(8,18,41,0.92) 100%);
        }
        .article-hero-content { position: relative; z-index: 2; }
        .article-category-badge {
            display: inline-flex; align-items: center; gap: 0.4rem;
            padding: 0.4rem 1.2rem; border-radius: 2rem;
            background: rgba(37, 99, 235, 0.18); border: 1px solid rgba(37, 99, 235, 0.3);
            color: #60A5FA; font-weight: 700; font-size: 0.85rem; margin-bottom: 1.25rem;
        }
        .article-hero h1 {
            font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 900; line-height: 1.2;
            letter-spacing: -0.03em; margin-bottom: 1rem;
        }
        .article-hero h1 span { color: #38BDF8; }
        .article-meta {
            display: flex; flex-wrap: wrap; gap: 1.5rem; color: #94A3B8;
            font-size: 0.9rem; align-items: center;
        }
        .article-meta i { color: #38BDF8; margin-right: 0.35rem; }
        
        /* Article Body */
        .article-body-section { padding: 3rem 0 5rem; }
        .article-layout { display: grid; grid-template-columns: 1fr 320px; gap: 3rem; align-items: start; }
        .article-content {
            background: rgba(15, 25, 55, 0.5); backdrop-filter: blur(10px);
            border: 1px solid var(--border-subtle); border-radius: var(--radius-lg);
            padding: 2.5rem;
        }
        .article-content h2 {
            font-size: 1.6rem; font-weight: 800; margin: 2rem 0 1rem; color: #F8FAFC;
            border-left: 3px solid #38BDF8; padding-left: 1rem;
        }
        .article-content h3 {
            font-size: 1.25rem; font-weight: 700; margin: 1.5rem 0 0.75rem; color: #E2E8F0;
        }
        .article-content p {
            color: #CBD5E1; line-height: 1.75; margin-bottom: 1.25rem; font-size: 1rem;
        }
        .article-content ul, .article-content ol {
            margin: 1rem 0 1.5rem 1.5rem; color: #CBD5E1;
        }
        .article-content li { margin-bottom: 0.5rem; line-height: 1.65; }
        .article-content blockquote {
            border-left: 4px solid #38BDF8; padding: 1.25rem 1.5rem;
            background: rgba(37, 99, 235, 0.08); border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: 2rem 0; color: #E2E8F0; font-style: italic; font-size: 1.05rem;
        }
        .article-content strong { color: #F8FAFC; }
        .article-content a { color: #38BDF8; text-decoration: underline; }
        
        .article-sidebar {
            display: flex; flex-direction: column; gap: 1.5rem; position: sticky; top: 84px;
        }
        .sidebar-card {
            background: rgba(15, 25, 55, 0.65); backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: 1.5rem;
        }
        .sidebar-card h4 {
            font-size: 1.1rem; font-weight: 700; margin-bottom: 1rem; color: #F8FAFC;
            display: flex; align-items: center; gap: 0.5rem;
        }
        .sidebar-card h4 i { color: #38BDF8; }
        .sidebar-list { list-style: none; padding: 0; }
        .sidebar-list li { margin-bottom: 0.75rem; }
        .sidebar-list a {
            color: #CBD5E1; text-decoration: none; font-size: 0.9rem; transition: color 0.2s;
            display: flex; align-items: center; gap: 0.5rem;
        }
        .sidebar-list a::before { content: '\f105'; font-family: 'Font Awesome 6 Free'; font-weight: 900; color: #38BDF8; font-size: 0.75rem; }
        .sidebar-list a:hover { color: #38BDF8; }
        
        .cta-banner {
            background: linear-gradient(135deg, #2563EB, #06B6D4); border-radius: var(--radius-lg);
            padding: 1.5rem; color: #fff; text-align: center;
        }
        .cta-banner h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; }
        .cta-banner p { font-size: 0.9rem; opacity: 0.9; margin-bottom: 1rem; }
        .cta-banner .btn-primary { 
            background: #fff; color: #2563EB; box-shadow: 0 4px 12px rgba(0,0,0,0.2);
            padding: 0.65rem 1.5rem; font-size: 0.9rem;
        }
        .cta-banner .btn-primary:hover { background: #F0F9FF; transform: translateY(-1px); }
        
        .article-not-found {
            text-align: center; padding: 4rem 2rem;
            background: rgba(15, 25, 55, 0.5); backdrop-filter: blur(10px);
            border: 1px solid var(--border-subtle); border-radius: var(--radius-lg);
        }
        .article-not-found i { font-size: 3rem; color: #F59E0B; margin-bottom: 1rem; }
        .article-not-found h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: 0.75rem; }
        .article-not-found p { color: #94A3B8; margin-bottom: 1.5rem; }
        
        /* Related Section */
        .related-section { padding: 4.5rem 0; border-top: 1px solid var(--border-subtle); }
        .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
        .related-card {
            background: rgba(15, 25, 55, 0.55); backdrop-filter: blur(10px);
            border: 1px solid var(--border-subtle); border-radius: var(--radius-lg);
            padding: 1.5rem; transition: all 0.3s; text-decoration: none; display: block;
        }
        .related-card:hover { border-color: rgba(56, 189, 248, 0.4); box-shadow: var(--shadow-glow); transform: translateY(-2px); }
        .related-card h4 { font-size: 1.05rem; font-weight: 700; color: #F8FAFC; margin-bottom: 0.5rem; }
        .related-card p { color: #94A3B8; font-size: 0.9rem; line-height: 1.5; }
        
        /* Footer */
        .site-footer { background: rgba(3,7,18,0.95); border-top: 1px solid var(--border-subtle); padding: 3.5rem 0 1.5rem; margin-top: 0; }
        .footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; margin-bottom: 2.5rem; }
        .footer-col h5 { color: #F8FAFC; font-weight: 700; font-size: 1rem; margin-bottom: 1rem; }
        .footer-col a { display: block; color: #94A3B8; text-decoration: none; font-size: 0.9rem; margin-bottom: 0.5rem; transition: color 0.2s; }
        .footer-col a:hover { color: #38BDF8; }
        .footer-bottom { text-align: center; padding-top: 1.5rem; border-top: 1px solid var(--border-subtle); color: #64748B; font-size: 0.85rem; }
        
        /* Responsive */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { position: static; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .nav-links { display: none; }
            .nav-actions { display: none; }
            .mobile-menu-btn { display: block; }
            .mobile-menu.active { display: flex; }
            .mobile-menu .nav-actions-mobile { display: flex; flex-direction: column; gap: 0.75rem; }
            .article-content { padding: 1.5rem; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
            .article-hero { padding: 2rem 0; }
        }

/* roulang page: category1 */
:root {
            --bg-deep: #081229;
            --bg-card: rgba(15, 25, 55, 0.75);
            --accent-blue: #2563EB;
            --accent-cyan: #38BDF8;
            --text-primary: #F8FAFC;
            --text-secondary: #94A3B8;
            --border-subtle: rgba(148, 163, 184, 0.15);
            --shadow-glow: 0 0 20px rgba(37, 99, 235, 0.35);
            --radius-md: 0.75rem;
            --radius-lg: 1.25rem;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            background-color: #030712;
            background-image: radial-gradient(ellipse at 30% 10%, #081229 0%, #030712 70%);
            font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; }
        .container { max-width: 1280px; margin: 0 auto; padding: 0 1.5rem; }
        /* Navigation */
        .nav-glass {
            background: rgba(3, 7, 18, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
        }
        .nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
        .logo-text {
            font-weight: 800; font-size: 1.25rem; letter-spacing: -0.02em;
            background: linear-gradient(135deg, #60A5FA 0%, #38BDF8 70%, #A5F3FC 100%);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
        }
        .nav-links { display: flex; gap: 2rem; align-items: center; }
        .nav-links a {
            color: #CBD5E1; font-weight: 500; font-size: 0.95rem;
            transition: color 0.2s; position: relative; padding: 0.25rem 0;
        }
        .nav-links a::after {
            content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px;
            background: var(--accent-cyan); border-radius: 2px; transition: width 0.25s;
        }
        .nav-links a:hover, .nav-links a.active { color: #F8FAFC; }
        .nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
        .btn-login {
            padding: 0.45rem 1.25rem; border-radius: 0.5rem; font-weight: 600; font-size: 0.9rem;
            background: transparent; border: 1px solid rgba(148, 163, 184, 0.5); color: #E2E8F0;
            transition: all 0.25s; cursor: pointer; white-space: nowrap;
        }
        .btn-login:hover { border-color: #38BDF8; color: #fff; }
        .btn-signup {
            padding: 0.45rem 1.5rem; border-radius: 0.5rem; font-weight: 700; font-size: 0.9rem;
            background: linear-gradient(135deg, #2563EB, #06B6D4); color: #fff; border: none;
            box-shadow: 0 0 16px rgba(37, 99, 235, 0.3); transition: all 0.25s; cursor: pointer; white-space: nowrap;
        }
        .btn-signup:hover { box-shadow: 0 0 28px rgba(37, 99, 235, 0.5); transform: translateY(-1px); }
        .mobile-menu-btn { display: none; background: none; border: none; color: #F8FAFC; font-size: 1.5rem; cursor: pointer; }
        .mobile-menu {
            display: none; flex-direction: column; background: rgba(8, 18, 41, 0.98);
            backdrop-filter: blur(20px); position: absolute; top: 64px; left: 0; width: 100%;
            border-bottom: 1px solid var(--border-subtle); padding: 1rem 1.5rem; gap: 0.75rem;
        }
        .mobile-menu a { color: #CBD5E1; padding: 0.6rem 0; font-weight: 500; border-bottom: 1px solid var(--border-subtle); }
        /* Hero Category Page */
        .hero-cat-section {
            padding: 7rem 0 4rem; position: relative; overflow: hidden;
            background: url('/assets/images/backpic/back-5.jpg') center/cover no-repeat;
        }
        .hero-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(3,7,18,0.75) 0%, rgba(8,18,41,0.92) 100%); }
        .hero-cat-content { position: relative; z-index: 2; max-width: 850px; }
        .cat-badge {
            display: inline-flex; align-items: center; gap: 0.5rem; background: rgba(37,99,235,0.25);
            border: 1px solid rgba(37,99,235,0.5); border-radius: 2rem; padding: 0.35rem 1.25rem;
            font-weight: 700; font-size: 0.9rem; color: #93BBFC; margin-bottom: 1.5rem;
        }
        .hero-cat-title { font-size: clamp(2.2rem, 5.5vw, 3.4rem); font-weight: 900; line-height: 1.15; margin-bottom: 1.25rem; letter-spacing: -0.02em; }
        .hero-cat-title span { color: #38BDF8; }
        .hero-cat-desc { font-size: 1.1rem; color: #CBD5E1; max-width: 600px; line-height: 1.7; margin-bottom: 2rem; }
        .hero-stats-row { display: flex; flex-wrap: wrap; gap: 1.5rem; margin-bottom: 2rem; }
        .hero-stat-item { background: rgba(15,25,55,0.7); backdrop-filter: blur(8px); border: 1px solid rgba(148,163,184,0.2); border-radius: var(--radius-md); padding: 1rem 1.5rem; min-width: 100px; }
        .hero-stat-item .val { font-size: 1.6rem; font-weight: 800; color: #38BDF8; }
        .hero-stat-item .lbl { font-size: 0.85rem; color: #94A3B8; }
        /* Sections */
        .section { padding: 4rem 0; }
        .section-header { margin-bottom: 2.5rem; }
        .section-label {
            display: inline-block; padding: 0.3rem 1rem; border-radius: 2rem;
            background: rgba(37,99,235,0.18); color: #60A5FA; font-weight: 700; font-size: 0.8rem;
            letter-spacing: 0.03em; text-transform: uppercase; margin-bottom: 0.75rem;
        }
        .section-title { font-size: clamp(1.7rem, 4vw, 2.2rem); font-weight: 800; line-height: 1.3; color: #F8FAFC; }
        .section-desc { color: #94A3B8; font-size: 1rem; margin-top: 0.5rem; max-width: 650px; }
        /* KPI Grid */
        .kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
        .kpi-card {
            background: var(--bg-card); backdrop-filter: blur(12px); border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg); padding: 1.8rem 1.5rem; text-align: center;
            transition: all 0.3s;
        }
        .kpi-card:hover { border-color: rgba(56,189,248,0.35); box-shadow: 0 0 22px rgba(37,99,235,0.3); transform: translateY(-2px); }
        .kpi-icon { font-size: 2rem; color: #38BDF8; margin-bottom: 0.6rem; }
        .kpi-num { font-size: 2rem; font-weight: 800; color: #F8FAFC; }
        .kpi-label { font-size: 0.9rem; color: #94A3B8; margin-top: 0.35rem; }
        /* Service Matrix */
        .matrix-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
        .matrix-card {
            background: rgba(15,25,55,0.55); backdrop-filter: blur(8px); border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg); padding: 2rem 1.5rem; transition: all 0.3s;
        }
        .matrix-card:hover { border-color: rgba(56,189,248,0.4); box-shadow: 0 0 22px rgba(37,99,235,0.25); transform: translateY(-2px); }
        .matrix-icon { font-size: 2.4rem; color: #60A5FA; margin-bottom: 1rem; }
        .matrix-card h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 0.5rem; color: #F8FAFC; }
        .matrix-card p { font-size: 0.95rem; color: #94A3B8; line-height: 1.6; }
        /* Pricing / Comparison */
        .compare-table-wrap { overflow-x: auto; }
        .compare-table { width: 100%; border-collapse: collapse; min-width: 600px; }
        .compare-table th, .compare-table td {
            padding: 1rem 1.25rem; border-bottom: 1px solid rgba(148,163,184,0.12); text-align: left;
        }
        .compare-table th { font-weight: 700; color: #60A5FA; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; background: rgba(15,25,55,0.4); }
        .compare-table td { color: #CBD5E1; font-size: 0.95rem; }
        .compare-table tr:hover td { background: rgba(37,99,235,0.08); }
        .compare-check { color: #10B981; }
        /* Milestones */
        .timeline-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
        .timeline-card {
            background: rgba(15,25,55,0.5); border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg); padding: 1.5rem; transition: all 0.3s;
        }
        .timeline-card:hover { border-color: rgba(56,189,248,0.35); box-shadow: 0 0 18px rgba(37,99,235,0.15); }
        .timeline-year { font-weight: 800; font-size: 1.5rem; color: #38BDF8; margin-bottom: 0.5rem; }
        .timeline-card h4 { font-size: 1.05rem; font-weight: 700; color: #F8FAFC; margin-bottom: 0.4rem; }
        .timeline-card p { font-size: 0.9rem; color: #94A3B8; line-height: 1.5; }
        /* News List */
        .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
        .news-card {
            background: rgba(15,25,55,0.5); border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg); overflow: hidden; transition: all 0.3s;
        }
        .news-card:hover { border-color: rgba(56,189,248,0.35); box-shadow: 0 0 22px rgba(37,99,235,0.2); transform: translateY(-2px); }
        .news-img { height: 160px; background: #0F1937; overflow: hidden; }
        .news-img img { width: 100%; height: 100%; object-fit: cover; }
        .news-body { padding: 1.25rem; }
        .news-body .news-date { font-size: 0.8rem; color: #64748B; margin-bottom: 0.5rem; }
        .news-body h4 { font-size: 1.05rem; font-weight: 700; color: #F8FAFC; margin-bottom: 0.5rem; line-height: 1.4; }
        .news-body p { font-size: 0.9rem; color: #94A3B8; line-height: 1.5; }
        /* FAQ */
        .faq-list { max-width: 760px; margin: 0 auto; }
        .faq-item {
            background: rgba(15,25,55,0.5); border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md); padding: 1.25rem 1.5rem; margin-bottom: 0.75rem;
            transition: all 0.25s;
        }
        .faq-item:hover { border-color: rgba(56,189,248,0.3); }
        .faq-item h3 { font-size: 1.05rem; font-weight: 700; color: #F8FAFC; margin-bottom: 0.4rem; }
        .faq-item p { font-size: 0.95rem; color: #94A3B8; line-height: 1.6; }
        /* CTA */
        .cta-box {
            background: linear-gradient(135deg, rgba(37,99,235,0.25) 0%, rgba(6,182,212,0.15) 100%);
            border: 1px solid rgba(56,189,248,0.35); border-radius: var(--radius-lg);
            padding: 3rem 2rem; text-align: center;
        }
        .cta-box h2 { font-size: 2rem; font-weight: 800; color: #F8FAFC; margin-bottom: 0.75rem; }
        .cta-box p { color: #CBD5E1; max-width: 500px; margin: 0 auto 1.5rem; }
        /* Footer */
        .site-footer { background: rgba(8,18,41,0.8); border-top: 1px solid var(--border-subtle); padding: 3rem 0 1.5rem; margin-top: 2rem; }
        .footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; margin-bottom: 2rem; }
        .footer-col h5 { font-weight: 700; color: #F8FAFC; margin-bottom: 1rem; font-size: 1rem; }
        .footer-col a { display: block; color: #94A3B8; font-size: 0.9rem; margin-bottom: 0.5rem; transition: color 0.2s; }
        .footer-col a:hover { color: #38BDF8; }
        .footer-bottom { border-top: 1px solid var(--border-subtle); padding-top: 1.5rem; text-align: center; color: #64748B; font-size: 0.85rem; }

        /* Responsive */
        @media (max-width: 1024px) {
            .kpi-grid, .timeline-grid { grid-template-columns: repeat(2, 1fr); }
            .matrix-grid { grid-template-columns: repeat(2, 1fr); }
            .news-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .nav-links, .nav-buttons { display: none; }
            .mobile-menu-btn { display: block; }
            .mobile-menu.active { display: flex; }
            .kpi-grid, .timeline-grid, .matrix-grid, .news-grid { grid-template-columns: 1fr; }
            .hero-stats-row { justify-content: center; }
            .cta-box { padding: 2rem 1.25rem; }
            .footer-grid { grid-template-columns: 1fr; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 1rem; }
            .hero-cat-title { font-size: 1.8rem; }
            .section-title { font-size: 1.5rem; }
        }

/* roulang page: category2 */
:root {
            --bg-deep: #081229;
            --bg-card: rgba(15, 25, 55, 0.75);
            --accent-blue: #2563EB;
            --accent-cyan: #38BDF8;
            --text-primary: #F8FAFC;
            --text-secondary: #94A3B8;
            --border-subtle: rgba(148, 163, 184, 0.15);
            --shadow-glow: 0 0 20px rgba(37, 99, 235, 0.35);
            --radius-md: 0.75rem;
            --radius-lg: 1.25rem;
        }

        * {
            box-sizing: border-box;
        }

        body {
            background-color: #030712;
            background-image: radial-gradient(ellipse at 30% 10%, #081229 0%, #030712 70%);
            font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            margin: 0;
            padding: 0;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

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

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

        button {
            font-family: inherit;
        }

        /* Navigation */
        .nav-glass {
            background: rgba(3, 7, 18, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .logo-text {
            font-weight: 800;
            font-size: 1.25rem;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, #60A5FA 0%, #38BDF8 70%, #A5F3FC 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-links {
            display: flex;
            gap: 2rem;
            align-items: center;
        }

        .nav-links a {
            color: #CBD5E1;
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.2s;
            position: relative;
            padding: 0.25rem 0;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 2px;
            transition: width 0.25s;
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: #F8FAFC;
        }

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

        .btn-login {
            padding: 0.45rem 1.25rem;
            border-radius: 0.5rem;
            font-weight: 600;
            font-size: 0.9rem;
            background: transparent;
            border: 1px solid rgba(148, 163, 184, 0.5);
            color: #E2E8F0;
            transition: all 0.25s;
            cursor: pointer;
        }

        .btn-login:hover {
            border-color: #38BDF8;
            color: #fff;
        }

        .btn-signup {
            padding: 0.45rem 1.5rem;
            border-radius: 0.5rem;
            font-weight: 700;
            font-size: 0.9rem;
            background: linear-gradient(135deg, #2563EB, #06B6D4);
            color: #fff;
            border: none;
            box-shadow: 0 0 16px rgba(37, 99, 235, 0.3);
            transition: all 0.25s;
            cursor: pointer;
        }

        .btn-signup:hover {
            box-shadow: 0 0 28px rgba(37, 99, 235, 0.5);
            transform: translateY(-1px);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: #F8FAFC;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.5rem;
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            background: rgba(8, 18, 41, 0.98);
            backdrop-filter: blur(20px);
            position: absolute;
            top: 64px;
            left: 0;
            width: 100%;
            border-bottom: 1px solid var(--border-subtle);
            padding: 1rem 1.5rem;
            gap: 0.75rem;
            z-index: 999;
        }

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

        .mobile-menu a {
            color: #CBD5E1;
            text-decoration: none;
            padding: 0.6rem 0;
            font-weight: 500;
            border-bottom: 1px solid var(--border-subtle);
        }

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

        /* Hero */
        .hero-section {
            padding: 7rem 0 5rem;
            position: relative;
            overflow: hidden;
            background: url('/assets/images/backpic/back-4.jpg') center/cover no-repeat;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(3, 7, 18, 0.7) 0%, rgba(8, 18, 41, 0.88) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(245, 158, 11, 0.2);
            border: 1px solid rgba(245, 158, 11, 0.4);
            border-radius: 2rem;
            padding: 0.4rem 1.4rem;
            font-weight: 700;
            font-size: 0.9rem;
            color: #FCD34D;
            margin-bottom: 1.5rem;
            backdrop-filter: blur(8px);
            letter-spacing: 0.02em;
        }

        .hero-badge i {
            color: #F59E0B;
        }

        .hero-title {
            font-size: clamp(2.4rem, 6vw, 3.8rem);
            font-weight: 900;
            line-height: 1.15;
            margin-bottom: 1.5rem;
            letter-spacing: -0.03em;
        }

        .hero-title span {
            color: #38BDF8;
        }

        .hero-desc {
            font-size: 1.1rem;
            color: #CBD5E1;
            max-width: 640px;
            line-height: 1.7;
            margin-bottom: 2rem;
        }

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

        .btn-primary {
            padding: 0.85rem 2.25rem;
            border-radius: 0.75rem;
            font-weight: 700;
            font-size: 1.05rem;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #2563EB, #06B6D4);
            color: #fff;
            box-shadow: 0 0 24px rgba(37, 99, 235, 0.4);
            transition: all 0.3s;
            cursor: pointer;
            border: none;
        }

        .btn-primary:hover {
            box-shadow: 0 0 40px rgba(37, 99, 235, 0.65);
            transform: translateY(-2px);
        }

        .btn-outline {
            padding: 0.85rem 2.25rem;
            border-radius: 0.75rem;
            font-weight: 700;
            font-size: 1.05rem;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            border: 1.5px solid #38BDF8;
            color: #38BDF8;
            background: rgba(56, 189, 248, 0.06);
            transition: all 0.3s;
            cursor: pointer;
        }

        .btn-outline:hover {
            background: rgba(56, 189, 248, 0.18);
            box-shadow: 0 0 18px rgba(56, 189, 248, 0.3);
        }

        /* Section */
        .section {
            padding: 4.5rem 0;
        }

        .section-header {
            margin-bottom: 3rem;
        }

        .section-label {
            display: inline-block;
            padding: 0.3rem 1rem;
            border-radius: 2rem;
            background: rgba(37, 99, 235, 0.15);
            color: #60A5FA;
            font-weight: 700;
            font-size: 0.8rem;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 0.75rem;
        }

        .section-title {
            font-size: clamp(1.8rem, 4.5vw, 2.4rem);
            font-weight: 800;
            line-height: 1.3;
            color: #F8FAFC;
        }

        .section-desc {
            color: #94A3B8;
            font-size: 1rem;
            margin-top: 0.75rem;
            max-width: 700px;
        }

        /* KPI Board */
        .kpi-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .kpi-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.8rem 1.5rem;
            text-align: center;
            transition: all 0.3s;
        }

        .kpi-card:hover {
            border-color: rgba(56, 189, 248, 0.35);
            box-shadow: var(--shadow-glow);
            transform: translateY(-3px);
        }

        .kpi-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(37, 99, 235, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            font-size: 1.4rem;
        }

        .kpi-value {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(135deg, #38BDF8, #A5F3FC);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .kpi-label {
            color: #94A3B8;
            font-size: 0.85rem;
            margin-top: 0.4rem;
        }

        /* Service Matrix */
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .matrix-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 2rem;
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }

        .matrix-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 40%;
            background: linear-gradient(180deg, #2563EB, #06B6D4);
            border-radius: 0 4px 4px 0;
            transition: height 0.3s;
        }

        .matrix-card:hover::before {
            height: 60%;
        }

        .matrix-card:hover {
            border-color: rgba(56, 189, 248, 0.4);
            box-shadow: var(--shadow-glow);
            transform: translateY(-4px);
        }

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

        .matrix-card p {
            color: #94A3B8;
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* Timeline */
        .timeline-section {
            position: relative;
        }

        .timeline-line {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            width: 2px;
            height: 100%;
            background: linear-gradient(180deg, var(--accent-cyan), var(--accent-blue), var(--accent-cyan));
            opacity: 0.3;
        }

        .timeline-item {
            display: flex;
            align-items: flex-start;
            gap: 2rem;
            margin-bottom: 3rem;
            position: relative;
        }

        .timeline-item:nth-child(even) {
            flex-direction: row-reverse;
        }

        .timeline-badge {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #2563EB, #06B6D4);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1.2rem;
            box-shadow: 0 0 20px rgba(37, 99, 235, 0.5);
            z-index: 2;
        }

        .timeline-content {
            flex: 1;
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            max-width: 500px;
        }

        .timeline-content h3 {
            font-weight: 700;
            font-size: 1.15rem;
            margin-bottom: 0.5rem;
        }

        .timeline-content p {
            color: #94A3B8;
            font-size: 0.95rem;
        }

        /* Events Grid */
        .events-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }

        .event-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.3s;
            display: flex;
            flex-direction: column;
        }

        .event-card:hover {
            border-color: rgba(56, 189, 248, 0.4);
            box-shadow: var(--shadow-glow);
            transform: translateY(-4px);
        }

        .event-card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

        .event-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s;
        }

        .event-card:hover .event-card-img img {
            transform: scale(1.06);
        }

        .event-tag {
            position: absolute;
            top: 1rem;
            left: 1rem;
            background: linear-gradient(135deg, #F59E0B, #F97316);
            color: #fff;
            padding: 0.25rem 0.85rem;
            border-radius: 2rem;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            z-index: 2;
        }

        .event-card-body {
            padding: 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .event-card-body h3 {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
        }

        .event-card-body p {
            color: #94A3B8;
            font-size: 0.9rem;
            margin-bottom: 1rem;
        }

        .event-meta {
            display: flex;
            gap: 1.25rem;
            font-size: 0.8rem;
            color: #64748B;
            margin-top: auto;
        }

        .event-meta i {
            margin-right: 0.3rem;
            color: #38BDF8;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.25s;
        }

        .faq-question {
            padding: 1.2rem 1.5rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 1rem;
            user-select: none;
        }

        .faq-question i {
            color: #38BDF8;
            transition: transform 0.3s;
            font-size: 1rem;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            color: #94A3B8;
            font-size: 0.95rem;
            padding: 0 1.5rem;
            line-height: 1.7;
        }

        .faq-item.active .faq-answer {
            max-height: 250px;
            padding: 0 1.5rem 1.2rem;
        }

        /* CTA Section */
        .cta-section {
            background: url('/assets/images/backpic/back-5.jpg') center/cover no-repeat;
            position: relative;
            padding: 5rem 0;
            text-align: center;
        }

        .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(3, 7, 18, 0.92) 0%, rgba(8, 18, 41, 0.85) 100%);
        }

        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 650px;
            margin: 0 auto;
        }

        /* Footer */
        .site-footer {
            background: rgba(3, 7, 18, 0.95);
            border-top: 1px solid var(--border-subtle);
            padding: 3rem 0 1.5rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            margin-bottom: 2.5rem;
        }

        .footer-col h5 {
            color: #F8FAFC;
            font-weight: 700;
            margin-bottom: 1rem;
            font-size: 1rem;
        }

        .footer-col a {
            display: block;
            color: #94A3B8;
            font-size: 0.9rem;
            margin-bottom: 0.5rem;
            transition: color 0.2s;
            text-decoration: none;
        }

        .footer-col a:hover {
            color: #38BDF8;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 1.5rem;
            text-align: center;
            color: #64748B;
            font-size: 0.85rem;
        }

        /* FAB */
        .fab-float {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
            background: rgba(7, 7, 13, 0.8);
            backdrop-filter: blur(10px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(7, 7, 13, 0.8), rgba(7, 7, 13, 0.8)), linear-gradient(135deg, #A3E635, #06B6D4);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #06B6D4;
            font-size: 1.4rem;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 0 20px rgba(6, 182, 212, 0.45);
            animation: fabPulse 2.5s infinite ease-in-out;
        }

        .fab-float:hover {
            box-shadow: 0 0 35px rgba(6, 182, 212, 0.7);
            transform: scale(1.1);
            color: #A3E635;
        }

        @keyframes fabPulse {
            0%, 100% { box-shadow: 0 0 20px rgba(6, 182, 212, 0.45); }
            50% { box-shadow: 0 0 35px rgba(163, 230, 53, 0.6); }
        }

        .fab-notification {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 14px;
            height: 14px;
            background: #F43F5E;
            border-radius: 50%;
            animation: blink 1s infinite;
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .kpi-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .matrix-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .events-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            .nav-actions .btn-login,
            .nav-actions .btn-signup {
                font-size: 0.8rem;
                padding: 0.35rem 1rem;
            }
            .hero-title {
                font-size: 2rem;
            }
            .kpi-grid {
                grid-template-columns: 1fr;
            }
            .matrix-grid {
                grid-template-columns: 1fr;
            }
            .events-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .timeline-item {
                flex-direction: column !important;
                align-items: flex-start;
            }
            .timeline-content {
                max-width: 100%;
            }
            .timeline-line {
                left: 28px;
            }
            .faq-question {
                font-size: 0.95rem;
                padding: 1rem 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .hero-btns {
                flex-direction: column;
                width: 100%;
            }
            .hero-btns .btn-primary,
            .hero-btns .btn-outline {
                width: 100%;
                justify-content: center;
            }
            .nav-actions {
                gap: 0.4rem;
            }
            .logo-text {
                font-size: 1rem;
            }
            .section {
                padding: 3rem 0;
            }
        }

/* roulang page: category3 */
:root {
            --bg-deep: #081229;
            --bg-card: rgba(15, 25, 55, 0.75);
            --accent-blue: #2563EB;
            --accent-cyan: #38BDF8;
            --text-primary: #F8FAFC;
            --text-secondary: #94A3B8;
            --border-subtle: rgba(148, 163, 184, 0.15);
            --shadow-glow: 0 0 20px rgba(37, 99, 235, 0.35);
            --radius-md: 0.75rem;
            --radius-lg: 1.25rem;
        }
        * {
            box-sizing: border-box;
        }
        body {
            background-color: #030712;
            background-image: radial-gradient(ellipse at 30% 10%, #081229 0%, #030712 70%);
            font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        button {
            font-family: inherit;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .nav-glass {
            background: rgba(3, 7, 18, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }
        .logo-text {
            font-weight: 800;
            font-size: 1.25rem;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, #60A5FA 0%, #38BDF8 70%, #A5F3FC 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-links {
            display: flex;
            gap: 2rem;
            align-items: center;
        }
        .nav-links a {
            color: #CBD5E1;
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.2s;
            position: relative;
            padding: 0.25rem 0;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 2px;
            transition: width 0.25s;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: #F8FAFC;
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        .btn-login {
            padding: 0.45rem 1.25rem;
            border-radius: 0.5rem;
            font-weight: 600;
            font-size: 0.9rem;
            background: transparent;
            border: 1px solid rgba(148, 163, 184, 0.5);
            color: #E2E8F0;
            transition: all 0.25s;
            cursor: pointer;
        }
        .btn-login:hover {
            border-color: #38BDF8;
            color: #fff;
        }
        .btn-signup {
            padding: 0.45rem 1.5rem;
            border-radius: 0.5rem;
            font-weight: 700;
            font-size: 0.9rem;
            background: linear-gradient(135deg, #2563EB, #06B6D4);
            color: #fff;
            border: none;
            box-shadow: 0 0 16px rgba(37, 99, 235, 0.3);
            transition: all 0.25s;
            cursor: pointer;
        }
        .btn-signup:hover {
            box-shadow: 0 0 28px rgba(37, 99, 235, 0.5);
            transform: translateY(-1px);
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: #F8FAFC;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            background: rgba(8, 18, 41, 0.98);
            backdrop-filter: blur(20px);
            position: absolute;
            top: 64px;
            left: 0;
            width: 100%;
            border-bottom: 1px solid var(--border-subtle);
            padding: 1rem 1.5rem;
            gap: 0.75rem;
        }
        .mobile-menu a {
            color: #CBD5E1;
            text-decoration: none;
            padding: 0.6rem 0;
            font-weight: 500;
            border-bottom: 1px solid var(--border-subtle);
        }
        .btn-primary {
            padding: 0.85rem 2.25rem;
            border-radius: 0.75rem;
            font-weight: 700;
            font-size: 1.05rem;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #2563EB, #06B6D4);
            color: #fff;
            box-shadow: 0 0 24px rgba(37, 99, 235, 0.4);
            transition: all 0.3s;
        }
        .btn-primary:hover {
            box-shadow: 0 0 40px rgba(37, 99, 235, 0.65);
            transform: translateY(-2px);
        }
        .btn-outline {
            padding: 0.85rem 2.25rem;
            border-radius: 0.75rem;
            font-weight: 700;
            font-size: 1.05rem;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            border: 1.5px solid #38BDF8;
            color: #38BDF8;
            background: rgba(56, 189, 248, 0.06);
            transition: all 0.3s;
        }
        .btn-outline:hover {
            background: rgba(56, 189, 248, 0.18);
            box-shadow: 0 0 18px rgba(56, 189, 248, 0.3);
        }
        .section {
            padding: 4.5rem 0;
        }
        .section-header {
            margin-bottom: 3rem;
        }
        .section-label {
            display: inline-block;
            padding: 0.3rem 1rem;
            border-radius: 2rem;
            background: rgba(37, 99, 235, 0.15);
            color: #60A5FA;
            font-weight: 700;
            font-size: 0.8rem;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 0.75rem;
        }
        .section-title {
            font-size: clamp(1.8rem, 4.5vw, 2.4rem);
            font-weight: 800;
            line-height: 1.3;
            color: #F8FAFC;
        }
        .section-desc {
            color: #94A3B8;
            font-size: 1rem;
            margin-top: 0.75rem;
            max-width: 700px;
        }
        .kpi-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .kpi-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.8rem 1.5rem;
            text-align: center;
            transition: all 0.3s;
        }
        .kpi-card:hover {
            border-color: rgba(56, 189, 248, 0.35);
            box-shadow: var(--shadow-glow);
        }
        .kpi-number {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(135deg, #60A5FA, #38BDF8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .kpi-label {
            color: #94A3B8;
            font-size: 0.9rem;
            margin-top: 0.5rem;
        }
        .glass-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.3s;
        }
        .glass-card:hover {
            border-color: rgba(56, 189, 248, 0.3);
            box-shadow: 0 0 24px rgba(37, 99, 235, 0.2);
        }
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            align-items: start;
        }
        .vs-card {
            background: rgba(15, 25, 55, 0.5);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 2rem;
        }
        .vs-card.highlight {
            border-color: rgba(56, 189, 248, 0.4);
            background: rgba(37, 99, 235, 0.1);
        }
        .vs-title {
            font-size: 1.3rem;
            font-weight: 700;
            color: #F8FAFC;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .milestone-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .milestone-step {
            flex: 1;
            min-width: 200px;
            text-align: center;
            position: relative;
        }
        .milestone-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: rgba(37, 99, 235, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            font-size: 1.5rem;
            color: #38BDF8;
            border: 1px solid rgba(56, 189, 248, 0.3);
        }
        .post-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.5rem;
        }
        .post-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            transition: all 0.3s;
        }
        .post-card:hover {
            border-color: rgba(56, 189, 248, 0.35);
            box-shadow: 0 0 18px rgba(37, 99, 235, 0.2);
        }
        .post-card img {
            border-radius: 0.5rem;
            width: 100%;
            height: 180px;
            object-fit: cover;
            margin-bottom: 1rem;
        }
        .post-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #F8FAFC;
            margin-bottom: 0.5rem;
        }
        .post-card p {
            color: #94A3B8;
            font-size: 0.9rem;
            line-height: 1.5;
        }
        .post-card time {
            font-size: 0.8rem;
            color: #64748B;
            display: block;
            margin-top: 0.75rem;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
        }
        .feature-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1.8rem;
            display: flex;
            gap: 1rem;
            align-items: flex-start;
        }
        .feature-icon {
            font-size: 1.8rem;
            color: #38BDF8;
            flex-shrink: 0;
        }
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
            max-width: 800px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            transition: all 0.3s;
        }
        .faq-item:hover {
            border-color: rgba(56, 189, 248, 0.3);
        }
        .faq-q {
            font-weight: 700;
            font-size: 1.05rem;
            color: #F8FAFC;
            margin-bottom: 0.5rem;
        }
        .faq-a {
            color: #94A3B8;
            font-size: 0.95rem;
        }
        .site-footer {
            background: rgba(3, 7, 18, 0.95);
            border-top: 1px solid var(--border-subtle);
            padding: 3rem 0 1.5rem;
            color: #94A3B8;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-col h5 {
            color: #F8FAFC;
            font-weight: 700;
            margin-bottom: 1rem;
            font-size: 1rem;
        }
        .footer-col a {
            display: block;
            color: #94A3B8;
            margin-bottom: 0.5rem;
            transition: color 0.2s;
        }
        .footer-col a:hover {
            color: #38BDF8;
        }
        .footer-bottom {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-subtle);
            font-size: 0.85rem;
            color: #64748B;
        }
        .fab-left {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #07070D, #081229);
            border: 2px solid #38BDF8;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #38BDF8;
            font-size: 1.3rem;
            cursor: pointer;
            box-shadow: 0 0 20px rgba(6, 182, 212, 0.45);
            transition: all 0.3s;
        }
        .fab-left:hover {
            box-shadow: 0 0 32px rgba(6, 182, 212, 0.7);
            transform: scale(1.1);
        }
        @media (max-width: 1024px) {
            .kpi-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .comparison-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .mobile-menu-btn {
                display: block;
            }
            .nav-links {
                display: none;
            }
            .mobile-menu.active {
                display: flex;
            }
            .kpi-grid {
                grid-template-columns: 1fr 1fr;
            }
            .milestone-row {
                flex-direction: column;
            }
            .section {
                padding: 3rem 0;
            }
        }
        @media (max-width: 520px) {
            .kpi-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero-btns {
                flex-direction: column;
            }
        }

/* roulang page: category4 */
:root {
            --bg-deep: #081229;
            --bg-card: rgba(15, 25, 55, 0.75);
            --accent-blue: #2563EB;
            --accent-cyan: #38BDF8;
            --text-primary: #F8FAFC;
            --text-secondary: #94A3B8;
            --border-subtle: rgba(148, 163, 184, 0.15);
            --shadow-glow: 0 0 20px rgba(37, 99, 235, 0.35);
            --radius-md: 0.75rem;
            --radius-lg: 1.25rem;
        }
        body {
            background-color: #030712;
            background-image: radial-gradient(ellipse at 30% 10%, #081229 0%, #030712 70%);
            font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        .container { max-width: 1280px; margin: 0 auto; padding: 0 1.5rem; }
        .nav-glass {
            background: rgba(3, 7, 18, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
        }
        .nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
        .logo-text {
            font-weight: 800; font-size: 1.25rem; letter-spacing: -0.02em;
            background: linear-gradient(135deg, #60A5FA 0%, #38BDF8 70%, #A5F3FC 100%);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
        }
        .nav-links { display: flex; gap: 2rem; align-items: center; }
        .nav-links a {
            color: #CBD5E1; text-decoration: none; font-weight: 500; font-size: 0.95rem;
            transition: color 0.2s; position: relative; padding: 0.25rem 0;
        }
        .nav-links a::after {
            content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px;
            background: var(--accent-cyan); border-radius: 2px; transition: width 0.25s;
        }
        .nav-links a:hover, .nav-links a.active { color: #F8FAFC; }
        .nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
        .btn-login {
            padding: 0.45rem 1.25rem; border-radius: 0.5rem; font-weight: 600; font-size: 0.9rem;
            background: transparent; border: 1px solid rgba(148, 163, 184, 0.5); color: #E2E8F0;
            transition: all 0.25s; cursor: pointer;
        }
        .btn-login:hover { border-color: #38BDF8; color: #fff; }
        .btn-signup {
            padding: 0.45rem 1.5rem; border-radius: 0.5rem; font-weight: 700; font-size: 0.9rem;
            background: linear-gradient(135deg, #2563EB, #06B6D4); color: #fff; border: none;
            box-shadow: 0 0 16px rgba(37, 99, 235, 0.3); transition: all 0.25s; cursor: pointer;
        }
        .btn-signup:hover { box-shadow: 0 0 28px rgba(37, 99, 235, 0.5); transform: translateY(-1px); }
        .mobile-menu-btn { display: none; background: none; border: none; color: #F8FAFC; font-size: 1.5rem; cursor: pointer; }
        .mobile-menu {
            display: none; flex-direction: column; background: rgba(8, 18, 41, 0.98);
            backdrop-filter: blur(20px); position: absolute; top: 64px; left: 0; width: 100%;
            border-bottom: 1px solid var(--border-subtle); padding: 1rem 1.5rem; gap: 0.75rem;
        }
        .mobile-menu a { color: #CBD5E1; text-decoration: none; padding: 0.6rem 0; font-weight: 500; border-bottom: 1px solid var(--border-subtle); }
        .page-banner {
            padding: 7rem 0 3.5rem; position: relative; overflow: hidden;
            background: url('/assets/images/backpic/back-5.jpg') center/cover no-repeat;
        }
        .banner-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(3,7,18,0.75) 0%, rgba(8,18,41,0.92) 100%); }
        .banner-content { position: relative; z-index: 2; max-width: 800px; }
        .banner-label {
            display: inline-block; padding: 0.35rem 1.25rem; border-radius: 2rem;
            background: rgba(234,88,12,0.2); color: #FDBA74; font-weight: 700; font-size: 0.85rem;
            letter-spacing: 0.03em; border: 1px solid rgba(234,88,12,0.4); margin-bottom: 1.25rem;
        }
        .banner-title { font-size: clamp(2.2rem, 5.5vw, 3.4rem); font-weight: 900; line-height: 1.15; margin-bottom: 1.25rem; letter-spacing: -0.03em; }
        .banner-title span { color: #F97316; }
        .banner-desc { font-size: 1.05rem; color: #CBD5E1; max-width: 600px; line-height: 1.7; margin-bottom: 2rem; }
        .section { padding: 4.5rem 0; }
        .section-header { margin-bottom: 3rem; }
        .section-label {
            display: inline-block; padding: 0.3rem 1rem; border-radius: 2rem;
            background: rgba(37,99,235,0.15); color: #60A5FA; font-weight: 700; font-size: 0.8rem;
            letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 0.75rem;
        }
        .section-title { font-size: clamp(1.8rem, 4.5vw, 2.4rem); font-weight: 800; line-height: 1.3; color: #F8FAFC; }
        .section-desc { color: #94A3B8; font-size: 1rem; margin-top: 0.75rem; max-width: 700px; }
        .glass-card {
            background: var(--bg-card); backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle); border-radius: var(--radius-lg);
            transition: all 0.3s;
        }
        .glass-card:hover { border-color: rgba(56,189,248,0.35); box-shadow: var(--shadow-glow); }
        .kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
        .kpi-card { background: var(--bg-card); backdrop-filter: blur(12px); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: 1.8rem 1.5rem; text-align: center; transition: all 0.3s; }
        .kpi-card:hover { border-color: rgba(56,189,248,0.35); box-shadow: var(--shadow-glow); transform: translateY(-3px); }
        .kpi-value { font-size: 2.2rem; font-weight: 900; color: #38BDF8; line-height: 1.2; }
        .kpi-label { font-size: 0.95rem; color: #94A3B8; margin-top: 0.5rem; }
        .feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
        .feature-card { padding: 2rem; }
        .feature-icon { font-size: 2rem; color: #38BDF8; margin-bottom: 1rem; }
        .feature-title { font-size: 1.2rem; font-weight: 700; color: #F8FAFC; margin-bottom: 0.6rem; }
        .feature-desc { color: #94A3B8; font-size: 0.95rem; line-height: 1.7; }
        .boss-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
        .boss-card { padding: 0; overflow: hidden; }
        .boss-img { width: 100%; height: 200px; object-fit: cover; }
        .boss-info { padding: 1.5rem; }
        .boss-name { font-size: 1.3rem; font-weight: 800; color: #F8FAFC; margin-bottom: 0.5rem; }
        .boss-reward { color: #F97316; font-weight: 700; font-size: 1.1rem; margin-bottom: 0.75rem; }
        .boss-desc { color: #94A3B8; font-size: 0.9rem; line-height: 1.6; }
        .process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
        .process-card { padding: 2rem 1.5rem; text-align: center; position: relative; }
        .process-num { width: 44px; height: 44px; border-radius: 50%; background: linear-gradient(135deg, #2563EB, #06B6D4); color: #fff; font-weight: 900; font-size: 1.2rem; display: flex; align-items: center; justify-content: center; margin: 0 auto 1rem; box-shadow: 0 0 18px rgba(37,99,235,0.4); }
        .process-title { font-size: 1.05rem; font-weight: 700; color: #F8FAFC; margin-bottom: 0.5rem; }
        .process-desc { color: #94A3B8; font-size: 0.9rem; line-height: 1.6; }
        .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
        .news-card { padding: 1.8rem; }
        .news-date { font-size: 0.8rem; color: #64748B; margin-bottom: 0.5rem; }
        .news-title { font-size: 1.1rem; font-weight: 700; color: #F8FAFC; margin-bottom: 0.6rem; line-height: 1.4; }
        .news-excerpt { color: #94A3B8; font-size: 0.9rem; line-height: 1.6; }
        .btn-primary {
            padding: 0.85rem 2.25rem; border-radius: 0.75rem; font-weight: 700; font-size: 1.05rem;
            text-decoration: none; display: inline-flex; align-items: center; gap: 0.5rem;
            background: linear-gradient(135deg, #2563EB, #06B6D4); color: #fff;
            box-shadow: 0 0 24px rgba(37, 99, 235, 0.4); transition: all 0.3s;
        }
        .btn-primary:hover { box-shadow: 0 0 40px rgba(37, 99, 235, 0.65); transform: translateY(-2px); }
        .btn-outline {
            padding: 0.85rem 2.25rem; border-radius: 0.75rem; font-weight: 700; font-size: 1.05rem;
            text-decoration: none; display: inline-flex; align-items: center; gap: 0.5rem;
            border: 1.5px solid #38BDF8; color: #38BDF8; background: rgba(56,189,248,0.06);
            transition: all 0.3s;
        }
        .btn-outline:hover { background: rgba(56,189,248,0.18); box-shadow: 0 0 18px rgba(56,189,248,0.3); }
        .faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.25rem; }
        .faq-card { padding: 1.5rem; cursor: pointer; }
        .faq-q { font-weight: 700; color: #F8FAFC; font-size: 1.05rem; margin-bottom: 0.5rem; display: flex; justify-content: space-between; align-items: center; }
        .faq-a { color: #94A3B8; font-size: 0.95rem; line-height: 1.7; display: none; margin-top: 0.75rem; }
        .faq-card.active .faq-a { display: block; }
        .faq-card.active { border-color: rgba(56,189,248,0.5); box-shadow: 0 0 14px rgba(37,99,235,0.2); }
        .cta-section { background: linear-gradient(135deg, rgba(37,99,235,0.1), rgba(56,189,248,0.08)); border: 1px solid rgba(56,189,248,0.25); border-radius: var(--radius-lg); padding: 3.5rem 2.5rem; text-align: center; }
        .cta-title { font-size: 2rem; font-weight: 900; color: #F8FAFC; margin-bottom: 1rem; }
        .cta-desc { color: #CBD5E1; font-size: 1.05rem; margin-bottom: 2rem; max-width: 500px; margin-left: auto; margin-right: auto; }
        .trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
        .trust-card { padding: 1.8rem 1.5rem; text-align: center; }
        .trust-icon { font-size: 2rem; color: #10B981; margin-bottom: 0.75rem; }
        .trust-label { font-size: 1rem; font-weight: 700; color: #F8FAFC; }
        .site-footer {
            background: rgba(3,7,18,0.95); border-top: 1px solid var(--border-subtle);
            padding: 3rem 0 2rem; margin-top: 4rem;
        }
        .footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; margin-bottom: 2rem; }
        .footer-col h5 { color: #F8FAFC; font-weight: 700; font-size: 0.95rem; margin-bottom: 1rem; }
        .footer-col a, .footer-col p { color: #94A3B8; text-decoration: none; font-size: 0.9rem; display: block; margin-bottom: 0.5rem; transition: color 0.2s; }
        .footer-col a:hover { color: #38BDF8; }
        .footer-bottom { border-top: 1px solid var(--border-subtle); padding-top: 1.5rem; text-align: center; color: #64748B; font-size: 0.85rem; }
        @media (max-width: 1024px) {
            .kpi-grid { grid-template-columns: repeat(2, 1fr); }
            .feature-grid { grid-template-columns: repeat(2, 1fr); }
            .boss-grid { grid-template-columns: 1fr; }
            .process-grid { grid-template-columns: repeat(2, 1fr); }
            .news-grid { grid-template-columns: repeat(2, 1fr); }
            .trust-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
            .faq-grid { grid-template-columns: 1fr; }
        }
        @media (max-width: 768px) {
            .nav-links { display: none; }
            .mobile-menu-btn { display: block; }
            .mobile-menu.active { display: flex; }
            .kpi-grid { grid-template-columns: 1fr; }
            .feature-grid { grid-template-columns: 1fr; }
            .process-grid { grid-template-columns: 1fr; }
            .news-grid { grid-template-columns: 1fr; }
            .trust-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
            .banner-title { font-size: 1.8rem; }
            .hero-btns { flex-direction: column; }
            .cta-section { padding: 2.5rem 1.5rem; }
        }