/* roulang page: index */
:root {
            --bg-deep: #08090F;
            --bg-navy: #0D111E;
            --bg-panel: #111827;
            --bg-glass: rgba(13, 17, 30, 0.72);
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --accent-neon: #00E5FF;
            --text-white: #FFFFFF;
            --text-silver: #CBD5E1;
            --text-muted: #7B8BA6;
            --border-glass: rgba(0, 240, 255, 0.18);
            --border-soft: rgba(203, 213, 225, 0.1);
            --radius-lg: 28px;
            --radius-md: 18px;
            --radius-sm: 12px;
            --shadow-glow: 0 0 24px rgba(0, 240, 255, 0.35);
            --shadow-card: 0 12px 34px rgba(0, 0, 0, 0.45);
            --shadow-soft: 0 6px 18px rgba(0, 0, 0, 0.28);
            --space-section: 96px;
            --space-sm: 16px;
            --space-md: 32px;
            --space-lg: 56px;
            --transition-fast: 0.2s ease;
            --transition-med: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', sans-serif;
            background: var(--bg-deep);
            color: var(--text-silver);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a { color: var(--text-silver); text-decoration: none; transition: color var(--transition-fast); }
        a:hover { color: var(--text-white); text-decoration: none; }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: 1rem; }
        h1, h2, h3, h4 { color: var(--text-white); font-weight: 700; line-height: 1.25; margin-bottom: 0; }
        h1 { font-size: 2.6rem; font-weight: 800; letter-spacing: -0.02em; }
        h2 { font-size: 2rem; font-weight: 700; letter-spacing: -0.015em; }
        h3 { font-size: 1.25rem; font-weight: 600; }
        .container { max-width: 1240px; margin: 0 auto; padding: 0 28px; }
        .section { padding: var(--space-section) 0; }
        .section-alt { background: var(--bg-navy); }
        .section-glow-top { border-top: 1px solid var(--border-glass); }
        .text-center { text-align: center; }
        .text-left { text-align: left; }
        .badge {
            display: inline-flex; align-items: center; gap: 8px;
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid var(--border-glass);
            color: var(--accent-cyan);
            font-size: 0.78rem; font-weight: 600;
            padding: 6px 16px; border-radius: 100px;
            letter-spacing: 0.04em; text-transform: uppercase;
        }
        .badge i { font-size: 0.7rem; }
        .btn {
            display: inline-flex; align-items: center; justify-content: center; gap: 10px;
            padding: 14px 28px; border-radius: 14px; font-weight: 600; font-size: 0.95rem;
            cursor: pointer; border: none; transition: all var(--transition-med);
            white-space: nowrap; line-height: 1.2;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent-blue) 0%, #0072FF 100%);
            color: #FFFFFF;
            box-shadow: 0 0 20px rgba(0, 82, 255, 0.45);
        }
        .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 32px rgba(0, 114, 255, 0.6); color: #FFFFFF; }
        .btn-primary:active { transform: translateY(0); box-shadow: 0 0 12px rgba(0, 82, 255, 0.4); }
        .btn-ghost {
            background: transparent; border: 1px solid var(--border-glass);
            color: var(--text-white);
        }
        .btn-ghost:hover { background: rgba(0, 240, 255, 0.08); border-color: var(--accent-cyan); color: var(--accent-cyan); }
        .btn-outline-neon {
            background: transparent; border: 1.5px solid var(--accent-cyan);
            color: var(--accent-cyan);
        }
        .btn-outline-neon:hover { background: rgba(0, 240, 255, 0.1); box-shadow: 0 0 18px rgba(0, 240, 255, 0.2); }
        .btn-ghost-white {
            background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.2);
            color: var(--text-white);
        }
        .btn-ghost-white:hover { background: rgba(255, 255, 255, 0.12); border-color: rgba(255, 255, 255, 0.4); }

        /* ===== Header ===== */
        .site-header {
            position: sticky; top: 0; z-index: 100;
            background: rgba(8, 9, 15, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
        }
        .header-inner {
            display: flex; align-items: center; justify-content: space-between;
            gap: 24px; padding: 14px 0; flex-wrap: wrap;
        }
        .header-logo a {
            font-size: 1.15rem; font-weight: 800; color: var(--text-white);
            letter-spacing: -0.01em; display: flex; align-items: center; gap: 10px;
        }
        .header-logo .logo-mark {
            width: 38px; height: 38px; border-radius: 10px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            display: flex; align-items: center; justify-content: center;
            font-size: 1rem; color: #FFFFFF; box-shadow: 0 0 16px rgba(0, 240, 255, 0.3);
        }
        .header-nav {
            display: flex; align-items: center; gap: 8px; flex: 1;
            justify-content: center;
        }
        .header-nav a {
            padding: 8px 16px; border-radius: 10px; font-weight: 500;
            font-size: 0.9rem; color: var(--text-muted);
            transition: all var(--transition-fast);
        }
        .header-nav a:hover { color: var(--text-white); background: rgba(255, 255, 255, 0.05); }
        .header-nav a.active {
            color: var(--accent-cyan); background: rgba(0, 240, 255, 0.08);
            border: 1px solid var(--border-glass);
        }
        .header-actions { display: flex; align-items: center; gap: 12px; }
        .btn-login-link {
            color: var(--text-white); font-weight: 600; font-size: 0.9rem;
            padding: 8px 14px; transition: color var(--transition-fast);
        }
        .btn-login-link:hover { color: var(--accent-cyan); }
        .btn-signup-header {
            padding: 10px 22px; font-size: 0.88rem; border-radius: 12px;
            background: linear-gradient(135deg, var(--accent-blue), #0072FF);
            color: #FFFFFF; font-weight: 700; cursor: pointer;
            border: none; transition: all var(--transition-med);
            box-shadow: 0 0 16px rgba(0, 82, 255, 0.4);
        }
        .btn-signup-header:hover { transform: translateY(-1px); box-shadow: 0 0 24px rgba(0, 114, 255, 0.55); }
        .nav-toggle-mobile {
            display: none; background: transparent; border: none; cursor: pointer;
            width: 40px; height: 40px; border-radius: 10px;
            align-items: center; justify-content: center; flex-direction: column; gap: 4px;
            transition: background var(--transition-fast);
        }
        .nav-toggle-mobile:hover { background: rgba(255, 255, 255, 0.06); }
        .nav-toggle-mobile span {
            display: block; width: 20px; height: 2px; background: var(--text-white);
            border-radius: 2px; transition: all var(--transition-fast);
        }
        .mobile-menu-panel {
            display: none; max-height: 0; overflow: hidden;
            transition: max-height 0.4s ease; padding: 0 28px;
        }
        .mobile-menu-panel.open { max-height: 420px; padding: 12px 28px 20px; }
        .mobile-menu-panel a {
            display: block; padding: 10px 0; font-weight: 500; color: var(--text-silver);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .mobile-menu-panel a.active { color: var(--accent-cyan); }

        /* ===== Hero ===== */
        .hero-section {
            padding: 72px 0 80px;
            background-image: linear-gradient(175deg, rgba(8,9,15,0.92) 20%, rgba(13,17,30,0.88)), url('/assets/images/backpic/back-1.jpg');
            background-size: cover; background-position: center;
            position: relative; overflow: hidden;
        }
        .hero-section::after {
            content: ''; position: absolute; inset: 0;
            background: radial-gradient(ellipse at 30% 30%, rgba(0,82,255,0.12) 0%, transparent 60%),
                        radial-gradient(ellipse at 70% 60%, rgba(0,240,255,0.07) 0%, transparent 55%);
            pointer-events: none;
        }
        .hero-content-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px; align-items: start; }
        .hero-left { padding-top: 10px; }
        .hero-right { display: flex; flex-direction: column; gap: 24px; }
        .hero-badge-row { display: flex; gap: 20px; margin-bottom: 22px; flex-wrap: wrap; }
        .hero-stat {
            display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 0.88rem;
            color: var(--text-silver);
        }
        .hero-stat i { color: var(--accent-cyan); }
        .hero-stat strong { color: var(--text-white); }
        .hero-desc { font-size: 1.06rem; color: var(--text-silver); margin-top: 18px; max-width: 560px; line-height: 1.7; }
        .hero-toc {
            margin-top: 28px; background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-soft); border-radius: var(--radius-md);
            padding: 20px 24px;
        }
        .hero-toc-title {
            font-size: 0.82rem; font-weight: 700; color: var(--text-white);
            text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 12px;
            display: flex; align-items: center; gap: 8px;
        }
        .hero-toc-title i { color: var(--accent-cyan); }
        .toc-list { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 8px 20px; }
        .toc-list li { font-size: 0.88rem; color: var(--text-muted); display: flex; align-items: center; gap: 8px; }
        .toc-list li::before { content: '\f0da'; font-family: 'Font Awesome 6 Free'; font-weight: 900; color: var(--accent-cyan); font-size: 0.65rem; }
        .hero-cta-row { margin-top: 28px; display: flex; gap: 16px; flex-wrap: wrap; }
        .doc-cover-wrap {
            background: linear-gradient(150deg, rgba(0,82,255,0.12), rgba(0,240,255,0.08));
            border: 1px solid var(--border-glass); border-radius: var(--radius-lg);
            padding: 22px; display: flex; align-items: center; justify-content: center;
            box-shadow: var(--shadow-glow);
        }
        .doc-cover-wrap img { border-radius: 16px; box-shadow: 0 16px 40px rgba(0, 0, 0, 0.55); max-height: 380px; object-fit: cover; }
        .lead-form-panel {
            background: var(--bg-glass); backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-glass); border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
        }
        .lead-form-title { font-size: 1.05rem; font-weight: 700; color: var(--text-white); margin-bottom: 6px; }
        .lead-form-sub { font-size: 0.84rem; color: var(--text-muted); margin-bottom: 18px; }
        .lead-form-group { display: flex; flex-direction: column; gap: 12px; }
        .lead-form-group input {
            background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 12px; padding: 14px 16px; color: var(--text-white);
            font-size: 0.92rem; outline: none; transition: border var(--transition-fast);
        }
        .lead-form-group input::placeholder { color: var(--text-muted); }
        .lead-form-group input:focus { border-color: var(--accent-cyan); }
        .lead-submit { margin-top: 6px; }

        /* ===== Section headers ===== */
        .section-head { margin-bottom: 44px; }
        .section-head h2 { margin-bottom: 12px; }
        .section-head p { font-size: 1rem; color: var(--text-muted); max-width: 680px; margin: 0 auto; }
        .section-head .badge { margin-bottom: 14px; }
        .section-head-left { text-align: left; }
        .section-head-left p { margin-left: 0; }

        /* ===== Screenshot Stage ===== */
        .screenshot-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 24px; }
        .screenshot-card {
            background: var(--bg-glass); border: 1px solid var(--border-soft);
            border-radius: var(--radius-md); overflow: hidden;
            transition: all var(--transition-med); cursor: pointer;
        }
        .screenshot-card:hover {
            transform: translateY(-8px); box-shadow: var(--shadow-glow);
            border-color: var(--accent-cyan);
        }
        .screenshot-card-img { height: 210px; overflow: hidden; position: relative; }
        .screenshot-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
        .screenshot-card:hover .screenshot-card-img img { transform: scale(1.06); }
        .screenshot-card-body { padding: 20px 20px 24px; }
        .screenshot-card-body h3 { font-size: 1.02rem; margin-bottom: 10px; }
        .screenshot-card-body p { font-size: 0.86rem; color: var(--text-muted); line-height: 1.55; }

        /* ===== Steps ===== */
        .steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
        .step-block {
            padding: 32px 28px; border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.03); border: 1px solid var(--border-soft);
            transition: all var(--transition-med); position: relative;
        }
        .step-block:hover { border-color: var(--accent-cyan); box-shadow: var(--shadow-soft); }
        .step-number {
            width: 52px; height: 52px; border-radius: 16px;
            background: linear-gradient(135deg, rgba(0,82,255,0.25), rgba(0,240,255,0.2));
            display: flex; align-items: center; justify-content: center;
            font-weight: 800; font-size: 1.2rem; color: var(--accent-cyan);
            margin-bottom: 18px; border: 1px solid var(--border-glass);
        }
        .step-block h3 { font-size: 1.12rem; margin-bottom: 10px; }
        .step-block p { font-size: 0.9rem; color: var(--text-muted); }

        /* ===== Pricing/Comparison ===== */
        .pricing-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 26px; align-items: start; }
        .pricing-card {
            background: var(--bg-glass); border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg); padding: 34px 28px;
            transition: all var(--transition-med); position: relative;
        }
        .pricing-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-card); }
        .pricing-card.featured {
            background: linear-gradient(160deg, rgba(0,82,255,0.16), rgba(0,240,255,0.08));
            border: 1.5px solid var(--accent-cyan);
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.22);
        }
        .pricing-tag-pop {
            position: absolute; top: -14px; right: 22px;
            background: var(--accent-cyan); color: #08090F;
            font-size: 0.72rem; font-weight: 800; padding: 4px 14px;
            border-radius: 100px; letter-spacing: 0.04em;
        }
        .pricing-name { font-size: 1.25rem; font-weight: 700; color: var(--text-white); margin-bottom: 4px; }
        .pricing-desc { font-size: 0.86rem; color: var(--text-muted); margin-bottom: 18px; }
        .pricing-value { font-size: 2rem; font-weight: 800; color: var(--accent-cyan); display: flex; align-items: baseline; }
        .pricing-value small { font-size: 0.85rem; color: var(--text-muted); font-weight: 500; margin-left: 6px; }
        .pricing-list { list-style: none; margin: 22px 0 26px; display: flex; flex-direction: column; gap: 10px; }
        .pricing-list li { font-size: 0.88rem; color: var(--text-silver); display: flex; align-items: flex-start; gap: 10px; }
        .pricing-list li i { color: var(--accent-cyan); font-size: 0.75rem; margin-top: 3px; }
        .pricing-cta { width: 100%; }

        /* ===== Reviews ===== */
        .reviews-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
        .review-card {
            background: rgba(255, 255, 255, 0.03); border: 1px solid var(--border-soft);
            border-radius: var(--radius-md); padding: 24px 20px;
            transition: all var(--transition-med);
        }
        .review-card:hover { border-color: var(--accent-cyan); box-shadow: var(--shadow-soft); }
        .review-stars { display: flex; gap: 3px; margin-bottom: 14px; color: #FFD700; font-size: 0.75rem; }
        .review-text { font-size: 0.86rem; color: var(--text-silver); line-height: 1.6; margin-bottom: 18px; min-height: 76px; }
        .review-author { display: flex; align-items: center; gap: 12px; }
        .review-avatar {
            width: 42px; height: 42px; border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            display: flex; align-items: center; justify-content: center;
            font-weight: 700; color: #FFFFFF; font-size: 0.85rem;
        }
        .review-name { font-size: 0.86rem; font-weight: 600; color: var(--text-white); }
        .review-loc { font-size: 0.76rem; color: var(--text-muted); }

        /* ===== Insights ===== */
        .insights-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .insight-card {
            background: var(--bg-glass); border: 1px solid var(--border-soft);
            border-radius: var(--radius-md); overflow: hidden;
            transition: all var(--transition-med);
        }
        .insight-card:hover { border-color: var(--accent-cyan); box-shadow: var(--shadow-card); }
        .insight-img { height: 160px; overflow: hidden; }
        .insight-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
        .insight-card:hover .insight-img img { transform: scale(1.05); }
        .insight-body { padding: 20px 20px 24px; }
        .insight-quote {
            font-size: 0.9rem; color: var(--text-silver); line-height: 1.65;
            font-style: italic; margin-bottom: 16px;
            border-left: 3px solid var(--accent-cyan); padding-left: 14px;
        }
        .insight-author { font-size: 0.82rem; color: var(--text-muted); font-weight: 600; }

        /* ===== News/Info ===== */
        .news-layout { display: grid; grid-template-columns: 1.5fr 0.8fr; gap: 32px; }
        .news-list { display: flex; flex-direction: column; gap: 18px; }
        .news-item {
            background: rgba(255, 255, 255, 0.03); border: 1px solid var(--border-soft);
            border-radius: var(--radius-sm); padding: 18px 22px;
            transition: all var(--transition-fast);
        }
        .news-item:hover { border-color: var(--accent-cyan); background: rgba(0, 240, 255, 0.04); }
        .news-item h3 { font-size: 1rem; margin-bottom: 6px; }
        .news-item h3 a { color: var(--text-white); }
        .news-item h3 a:hover { color: var(--accent-cyan); }
        .news-item .news-summary { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 10px; line-height: 1.5; }
        .news-item .news-meta { display: flex; gap: 16px; font-size: 0.78rem; color: var(--text-muted); flex-wrap: wrap; }
        .news-item .news-meta i { margin-right: 4px; }
        .news-empty { background: rgba(255, 255, 255, 0.03); border: 1px solid var(--border-soft); border-radius: var(--radius-sm); padding: 32px 22px; text-align: center; color: var(--text-muted); }
        .news-side-panel {
            background: var(--bg-glass); border: 1px solid var(--border-glass);
            border-radius: var(--radius-md); padding: 24px 20px;
        }
        .news-side-panel h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 16px; }
        .news-side-list { list-style: none; display: flex; flex-direction: column; gap: 12px; }
        .news-side-list li { border-bottom: 1px solid rgba(255, 255, 255, 0.06); padding-bottom: 10px; }
        .news-side-list li:last-child { border-bottom: none; padding-bottom: 0; }
        .news-side-list a { font-size: 0.86rem; color: var(--text-silver); line-height: 1.45; display: inline-flex; gap: 8px; align-items: flex-start; }
        .news-side-list a:hover { color: var(--accent-cyan); }
        .news-side-list a i { color: var(--accent-cyan); font-size: 0.65rem; margin-top: 4px; }

        /* ===== CTA / Download ===== */
        .download-cta-wrap {
            background: linear-gradient(150deg, rgba(0,82,255,0.18), rgba(0,240,255,0.1));
            border: 1px solid var(--border-glass); border-radius: var(--radius-lg);
            padding: 56px 48px; text-align: center;
            box-shadow: var(--shadow-glow); position: relative; overflow: hidden;
        }
        .download-cta-wrap::before {
            content: ''; position: absolute; inset: 0;
            background: radial-gradient(ellipse at 50% 0%, rgba(0,240,255,0.15) 0%, transparent 55%);
            pointer-events: none;
        }
        .download-cta-wrap h2 { font-size: 2rem; margin-bottom: 14px; }
        .download-cta-wrap p { font-size: 1rem; color: var(--text-silver); max-width: 560px; margin: 0 auto 28px; }
        .download-stats-row { display: flex; justify-content: center; gap: 40px; flex-wrap: wrap; margin-bottom: 28px; }
        .dl-stat { text-align: center; }
        .dl-stat strong { display: block; font-size: 1.7rem; font-weight: 800; color: var(--accent-cyan); }
        .dl-stat span { font-size: 0.8rem; color: var(--text-muted); }
        .download-cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 1; }

        /* ===== FAQ ===== */
        .faq-list { display: flex; flex-direction: column; gap: 16px; max-width: 860px; margin: 0 auto; }
        .faq-item {
            background: rgba(255, 255, 255, 0.03); border: 1px solid var(--border-soft);
            border-radius: var(--radius-sm); overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover { border-color: rgba(0, 240, 255, 0.28); }
        .faq-question {
            width: 100%; display: flex; justify-content: space-between; align-items: center;
            padding: 20px 24px; background: transparent; border: none; cursor: pointer;
            font-size: 0.98rem; font-weight: 600; color: var(--text-white);
            text-align: left; gap: 16px;
        }
        .faq-question i { color: var(--accent-cyan); font-size: 0.75rem; transition: transform var(--transition-fast); }
        .faq-question.active i { transform: rotate(180deg); }
        .faq-answer {
            display: none; padding: 0 24px 22px;
            font-size: 0.9rem; color: var(--text-muted); line-height: 1.65;
        }
        .faq-answer.open { display: block; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-navy); border-top: 1px solid rgba(0, 240, 255, 0.1);
            padding: 56px 0 28px; margin-top: 0;
        }
        .footer-grid { display: grid; grid-template-columns: 1.2fr 0.8fr 0.8fr 1fr; gap: 40px; margin-bottom: 36px; }
        .footer-brand h3 { font-size: 1.2rem; font-weight: 800; margin-bottom: 10px; color: var(--text-white); }
        .footer-brand p { font-size: 0.86rem; color: var(--text-muted); line-height: 1.55; }
        .footer-col h4 { font-size: 0.9rem; font-weight: 700; color: var(--text-white); margin-bottom: 16px; text-transform: uppercase; letter-spacing: 0.04em; }
        .footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
        .footer-col ul a { font-size: 0.86rem; color: var(--text-muted); transition: color var(--transition-fast); }
        .footer-col ul a:hover { color: var(--accent-cyan); }
        .footer-trust-icons { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
        .footer-badge {
            display: inline-flex; align-items: center; gap: 8px;
            background: rgba(255, 255, 255, 0.05); border: 1px solid var(--border-soft);
            border-radius: 100px; padding: 6px 16px; font-size: 0.76rem;
            color: var(--text-silver); font-weight: 600;
        }
        .footer-badge i { color: var(--accent-cyan); }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08); padding-top: 22px;
            display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
        }
        .footer-bottom p { font-size: 0.78rem; color: var(--text-muted); }
        .footer-bottom a { color: var(--text-muted); }
        .footer-bottom a:hover { color: var(--accent-cyan); }
        .footer-18plus {
            display: inline-flex; align-items: center; gap: 6px;
            background: #D32F2F; color: #FFFFFF;
            font-weight: 800; font-size: 0.78rem; padding: 5px 12px;
            border-radius: 100px; letter-spacing: 0.05em;
        }

        /* ===== FAB ===== */
        .fab-cyber {
            position: fixed; left: 18px; bottom: 96px; z-index: 50;
            display: flex; align-items: center; justify-content: center;
            width: 56px; height: 56px; border-radius: 100px;
            background: rgba(8, 9, 15, 0.72); backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            cursor: pointer; transition: all var(--transition-med);
            opacity: 0.65; overflow: visible; position: fixed;
        }
        .fab-cyber::before {
            content: ''; position: absolute; inset: -2px;
            border-radius: 100px; z-index: -1;
            background: linear-gradient(120deg, #00F0FF, #0052FF, #00F0FF, #0052FF);
            background-size: 300% 300%; animation: gradientShift 3.5s ease infinite;
        }
        @keyframes gradientShift {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }
        .fab-cyber:hover { opacity: 1; box-shadow: 0 0 24px rgba(0, 240, 255, 0.75); transform: scale(1.08); }
        .fab-cyber:active { transform: scale(0.95); }
        .fab-cyber .fab-icon { color: var(--accent-cyan); font-size: 1.3rem; z-index: 1; animation: flickerNeon 2.2s ease infinite; }
        @keyframes flickerNeon {
            0%, 100% { opacity: 1; }
            45% { opacity: 0.85; }
            50% { opacity: 0.65; }
            55% { opacity: 0.85; }
        }
        .fab-notification {
            position: absolute; top: -4px; right: -6px;
            background: #FF007F; color: #FFFFFF;
            font-size: 0.6rem; font-weight: 800; padding: 2px 8px;
            border-radius: 100px; letter-spacing: 0.04em;
            box-shadow: 0 0 10px rgba(255, 0, 127, 0.7);
            animation: pulseNotif 1.5s ease infinite;
        }
        @keyframes pulseNotif {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.1); }
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            :root { --space-section: 72px; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.7rem; }
            .hero-content-grid { grid-template-columns: 1fr; gap: 36px; }
            .hero-right { flex-direction: row; flex-wrap: wrap; }
            .doc-cover-wrap { flex: 1 1 45%; }
            .lead-form-panel { flex: 1 1 45%; }
            .screenshot-grid { grid-template-columns: 1fr 1fr; }
            .steps-grid { grid-template-columns: 1fr 1fr; }
            .pricing-grid { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; }
            .reviews-grid { grid-template-columns: 1fr 1fr; }
            .insights-grid { grid-template-columns: 1fr 1fr; }
            .news-layout { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
            .header-nav { gap: 4px; }
            .header-nav a { padding: 7px 11px; font-size: 0.82rem; }
        }
        @media (max-width: 768px) {
            :root { --space-section: 56px; }
            .container { padding: 0 18px; }
            .header-inner { flex-wrap: nowrap; gap: 10px; }
            .header-nav { display: none; }
            .nav-toggle-mobile { display: flex; }
            .mobile-menu-panel.open { display: block; }
            .header-actions { gap: 8px; }
            .btn-login-link { padding: 6px 10px; font-size: 0.82rem; }
            .btn-signup-header { padding: 8px 16px; font-size: 0.78rem; }
            .header-logo a { font-size: 0.92rem; }
            .header-logo .logo-mark { width: 32px; height: 32px; font-size: 0.85rem; }
            h1 { font-size: 1.8rem; }
            h2 { font-size: 1.4rem; }
            .hero-section { padding: 44px 0 56px; }
            .hero-desc { font-size: 0.95rem; }
            .toc-list { grid-template-columns: 1fr; }
            .hero-right { flex-direction: column; }
            .hero-cta-row { gap: 10px; }
            .btn { padding: 12px 20px; font-size: 0.86rem; }
            .screenshot-grid { grid-template-columns: 1fr; }
            .screenshot-card-img { height: 180px; }
            .steps-grid { grid-template-columns: 1fr; }
            .reviews-grid { grid-template-columns: 1fr; }
            .insights-grid { grid-template-columns: 1fr; }
            .insight-img { height: 140px; }
            .pricing-card { padding: 28px 22px; }
            .download-cta-wrap { padding: 40px 24px; }
            .download-stats-row { gap: 24px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .fab-cyber { left: 12px; bottom: 76px; width: 48px; height: 48px; }
            .fab-cyber .fab-icon { font-size: 1.1rem; }
        }
        @media (max-width: 520px) {
            .hero-badge-row { gap: 12px; }
            .hero-stat { font-size: 0.78rem; }
            .btn-primary, .btn-ghost, .btn-outline-neon { width: 100%; justify-content: center; }
            .download-cta-btns { flex-direction: column; }
            .download-cta-btns .btn { width: 100%; }
            .news-item { padding: 14px 16px; }
            .news-item h3 { font-size: 0.92rem; }
            .news-item .news-summary { font-size: 0.8rem; }
        }

/* roulang page: category1 */
:root {
            --bg-deep-space: #08090F;
            --bg-cyber-navy: #0D111E;
            --bg-panel: rgba(13, 17, 30, 0.72);
            --accent-electric-blue: #0052FF;
            --accent-neon-cyan: #00F0FF;
            --text-white: #FFFFFF;
            --text-cool-silver: #CBD5E1;
            --text-muted: #8A94A6;
            --border-glass: rgba(0, 240, 255, 0.18);
            --border-glass-hover: rgba(0, 240, 255, 0.45);
            --shadow-glow: 0 0 15px rgba(0, 240, 255, 0.35);
            --shadow-glow-strong: 0 0 28px rgba(0, 240, 255, 0.55);
            --shadow-electric: 0 0 20px rgba(0, 82, 255, 0.45);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 80px;
            --transition-fast: 0.2s ease;
            --transition-med: 0.35s ease;
            --transition-slow: 0.5s ease;
            --font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --line-height-body: 1.65;
        }

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

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

        body {
            font-family: var(--font-family);
            background-color: var(--bg-deep-space);
            color: var(--text-white);
            line-height: var(--line-height-body);
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
            background-image: radial-gradient(circle at 15% 20%, rgba(0, 82, 255, 0.08) 0%, transparent 45%),
                              radial-gradient(circle at 85% 75%, rgba(0, 240, 255, 0.06) 0%, transparent 40%),
                              linear-gradient(160deg, #08090F 0%, #0D111E 55%, #08090F 100%);
        }

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

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

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

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

        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-white);
            margin-bottom: 0.6em;
        }

        h1 {
            font-size: clamp(2.1rem, 5vw, 3.2rem);
            letter-spacing: -0.5px;
        }

        h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.3rem);
            letter-spacing: -0.3px;
        }

        h3 {
            font-size: clamp(1.2rem, 2.2vw, 1.5rem);
        }

        h4 {
            font-size: 1.08rem;
            letter-spacing: 0.2px;
        }

        p {
            margin-bottom: 1rem;
        }

        ul, ol {
            padding-left: 1.4rem;
            margin-bottom: 1rem;
        }

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

        /* ========== HEADER ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(8, 9, 15, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
            transition: background var(--transition-med), box-shadow var(--transition-med);
        }

        .site-header.scrolled {
            background: rgba(8, 9, 15, 0.96);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.5);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px 20px;
            padding: 14px 0;
        }

        .header-logo a {
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--text-white);
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: color var(--transition-fast);
        }

        .header-logo a:hover {
            color: var(--accent-neon-cyan);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent-electric-blue), var(--accent-neon-cyan));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-white);
            font-size: 1.1rem;
            box-shadow: var(--shadow-electric);
            flex-shrink: 0;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .header-nav a {
            display: inline-flex;
            align-items: center;
            padding: 9px 16px;
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text-cool-silver);
            border-radius: 20px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

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

        .header-nav a.active {
            color: var(--text-white);
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.25), rgba(0, 240, 255, 0.18));
            border: 1px solid var(--border-glass);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.18);
        }

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

        .btn-login {
            padding: 9px 18px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-cool-silver);
            background: transparent;
            border: none;
            border-radius: 20px;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-login:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
        }

        .btn-signup {
            padding: 9px 22px;
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-white);
            background: linear-gradient(135deg, var(--accent-electric-blue), var(--accent-neon-cyan));
            border: none;
            border-radius: 20px;
            cursor: pointer;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-electric);
            white-space: nowrap;
        }

        .btn-signup:hover {
            box-shadow: var(--shadow-glow-strong);
            transform: translateY(-1px);
        }

        .menu-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-glass);
            border-radius: 8px;
            width: 44px;
            height: 44px;
            color: var(--text-white);
            font-size: 1.2rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            align-items: center;
            justify-content: center;
        }

        .menu-toggle:hover {
            background: rgba(0, 240, 255, 0.08);
            border-color: var(--border-glass-hover);
        }

        /* ========== HERO ========== */
        .hero-section {
            padding-top: 140px;
            padding-bottom: 80px;
            position: relative;
            overflow: hidden;
            min-height: 620px;
            display: flex;
            align-items: center;
            background-image: linear-gradient(rgba(8, 9, 15, 0.82), rgba(8, 9, 15, 0.88)), url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 140px;
            background: linear-gradient(to bottom, transparent, var(--bg-deep-space));
            pointer-events: none;
        }

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

        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 22px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 7px 14px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--text-cool-silver);
            background: rgba(0, 240, 255, 0.07);
            border: 1px solid var(--border-glass);
            border-radius: 18px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .hero-badge i {
            color: var(--accent-neon-cyan);
            font-size: 0.78rem;
        }

        .hero-section h1 {
            margin-bottom: 18px;
            text-shadow: 0 2px 18px rgba(0, 240, 255, 0.25);
        }

        .hero-subtitle {
            font-size: 1.12rem;
            color: var(--text-cool-silver);
            line-height: 1.7;
            margin-bottom: 26px;
            max-width: 560px;
        }

        .hero-qualification {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 14px 18px;
            background: rgba(13, 17, 30, 0.6);
            border-radius: var(--radius-sm);
            border-left: 3px solid var(--accent-neon-cyan);
            margin-bottom: 28px;
            max-width: 520px;
        }

        .hero-qualification i {
            color: var(--accent-neon-cyan);
            font-size: 1.1rem;
            margin-top: 3px;
            flex-shrink: 0;
        }

        .hero-qualification p {
            font-size: 0.92rem;
            color: var(--text-cool-silver);
            margin-bottom: 0;
            line-height: 1.6;
        }

        .hero-cta-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 14px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            padding: 14px 30px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            background: linear-gradient(135deg, var(--accent-electric-blue), var(--accent-neon-cyan));
            border: none;
            border-radius: 28px;
            cursor: pointer;
            transition: all var(--transition-med);
            box-shadow: var(--shadow-electric);
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-primary:hover {
            box-shadow: var(--shadow-glow-strong);
            transform: translateY(-2px);
            color: var(--text-white);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 24px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-cool-silver);
            background: transparent;
            border: 1px solid var(--border-glass);
            border-radius: 28px;
            cursor: pointer;
            transition: all var(--transition-fast);
            text-decoration: none;
            white-space: nowrap;
        }

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

        .hero-panel {
            background: rgba(13, 17, 30, 0.7);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 30px 28px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
        }

        .hero-panel-title {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-white);
        }

        .hero-panel-title i {
            color: var(--accent-neon-cyan);
        }

        .hero-stat-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .hero-stat-item {
            padding: 18px 16px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition-fast);
        }

        .hero-stat-item:hover {
            background: rgba(0, 240, 255, 0.05);
            border-color: var(--border-glass);
        }

        .hero-stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-neon-cyan);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }

        .hero-stat-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ========== METRICS DASHBOARD ========== */
        .metrics-section {
            padding: var(--spacing-xl) 0;
        }

        .section-header {
            margin-bottom: var(--spacing-lg);
            max-width: 680px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 6px 14px;
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--accent-neon-cyan);
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid var(--border-glass);
            border-radius: 18px;
            letter-spacing: 0.4px;
            text-transform: uppercase;
            margin-bottom: 14px;
        }

        .section-header h2 {
            margin-bottom: 12px;
        }

        .section-header p {
            color: var(--text-cool-silver);
            font-size: 1.02rem;
            line-height: 1.7;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            background: var(--bg-panel);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 26px 22px;
            transition: all var(--transition-med);
            position: relative;
            overflow: hidden;
        }

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

        .metric-card:hover {
            border-color: var(--border-glass-hover);
            box-shadow: var(--shadow-glow);
            transform: translateY(-3px);
        }

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

        .metric-icon {
            width: 46px;
            height: 46px;
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.22), rgba(0, 240, 255, 0.18));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-neon-cyan);
            font-size: 1.15rem;
            margin-bottom: 16px;
        }

        .metric-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }

        .metric-label {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-top: 6px;
        }

        /* ========== TACTICS MATRIX ========== */
        .tactics-section {
            padding: var(--spacing-xl) 0;
            background: rgba(13, 17, 30, 0.4);
        }

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

        .tactic-card {
            background: var(--bg-panel);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-med);
            display: flex;
            flex-direction: column;
        }

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

        .tactic-card-image {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

        .tactic-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

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

        .tactic-card-image::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, rgba(13, 17, 30, 0.9), transparent);
        }

        .tactic-card-body {
            padding: 24px 26px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .tactic-card-body h3 {
            font-size: 1.3rem;
            margin-bottom: 10px;
        }

        .tactic-card-body p {
            color: var(--text-cool-silver);
            font-size: 0.94rem;
            line-height: 1.7;
            flex: 1;
        }

        .tactic-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 18px;
        }

        .tactic-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 12px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--text-cool-silver);
            background: rgba(255, 255, 255, 0.05);
            border-radius: 14px;
        }

        .tactic-tag i {
            color: var(--accent-neon-cyan);
            font-size: 0.7rem;
        }

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

        .comparison-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            margin-top: var(--spacing-md);
        }

        .comparison-col {
            border-radius: var(--radius-lg);
            padding: 30px 28px;
            transition: all var(--transition-med);
        }

        .comparison-col.before {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .comparison-col.after {
            background: rgba(0, 82, 255, 0.08);
            border: 1px solid var(--border-glass);
            box-shadow: var(--shadow-electric);
        }

        .comparison-col.after:hover {
            box-shadow: var(--shadow-glow-strong);
        }

        .comparison-col.before:hover {
            border-color: rgba(255, 255, 255, 0.16);
        }

        .comparison-heading {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 18px;
        }

        .comparison-heading h3 {
            font-size: 1.2rem;
            margin-bottom: 0;
        }

        .comparison-heading .comp-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .before .comp-icon {
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-muted);
        }

        .after .comp-icon {
            background: linear-gradient(135deg, var(--accent-electric-blue), var(--accent-neon-cyan));
            color: var(--text-white);
        }

        .comparison-col ul {
            list-style: none;
            padding-left: 0;
            margin-bottom: 0;
        }

        .comparison-col ul li {
            position: relative;
            padding-left: 30px;
            margin-bottom: 12px;
            color: var(--text-cool-silver);
            font-size: 0.93rem;
            line-height: 1.65;
        }

        .comparison-col ul li:last-child {
            margin-bottom: 0;
        }

        .comparison-col.before ul li::before {
            content: '\f00d';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 1px;
            color: #FF6B6B;
            font-size: 0.85rem;
        }

        .comparison-col.after ul li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 1px;
            color: var(--accent-neon-cyan);
            font-size: 0.85rem;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: var(--spacing-xl) 0;
            background: rgba(13, 17, 30, 0.4);
        }

        .faq-list {
            max-width: 820px;
        }

        .faq-item {
            background: var(--bg-panel);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 700;
            font-size: 0.98rem;
            color: var(--text-white);
            user-select: none;
            transition: background var(--transition-fast);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-family: inherit;
        }

        .faq-question:hover {
            background: rgba(0, 240, 255, 0.04);
        }

        .faq-question .faq-toggle {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(0, 240, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-neon-cyan);
            font-size: 0.8rem;
            transition: transform var(--transition-fast);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-med), padding var(--transition-med);
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 260px;
            padding: 0 22px 20px;
        }

        .faq-answer p {
            color: var(--text-cool-silver);
            font-size: 0.92rem;
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ========== CTA FORM ========== */
        .cta-form-section {
            padding: var(--spacing-xl) 0 var(--spacing-2xl);
        }

        .cta-form-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            background: var(--bg-panel);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-xl);
            padding: 44px 40px;
            box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
        }

        .cta-form-info h2 {
            margin-bottom: 14px;
        }

        .cta-form-info p {
            color: var(--text-cool-silver);
            font-size: 0.98rem;
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .cta-form-info ul {
            list-style: none;
            padding-left: 0;
            margin-bottom: 0;
        }

        .cta-form-info ul li {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
            color: var(--text-cool-silver);
            font-size: 0.9rem;
        }

        .cta-form-info ul li i {
            color: var(--accent-neon-cyan);
            font-size: 0.85rem;
        }

        .cta-form-box {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.07);
            border-radius: var(--radius-md);
            padding: 28px 26px;
        }

        .cta-form-box h4 {
            font-size: 1.05rem;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .cta-form-box h4 i {
            color: var(--accent-neon-cyan);
        }

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

        .form-group label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-cool-silver);
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            font-size: 0.92rem;
            font-family: inherit;
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            outline: none;
        }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: var(--text-muted);
        }

        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--accent-neon-cyan);
            box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.12);
            background: rgba(255, 255, 255, 0.07);
        }

        .form-submit-btn {
            width: 100%;
            padding: 14px 24px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            background: linear-gradient(135deg, var(--accent-electric-blue), var(--accent-neon-cyan));
            border: none;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all var(--transition-med);
            box-shadow: var(--shadow-electric);
            font-family: inherit;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
        }

        .form-submit-btn:hover {
            box-shadow: var(--shadow-glow-strong);
            transform: translateY(-1px);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: rgba(5, 6, 10, 0.85);
            border-top: 1px solid rgba(0, 240, 255, 0.12);
            padding: 50px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand h3 {
            font-size: 1.2rem;
            margin-bottom: 12px;
            color: var(--text-white);
        }

        .footer-brand h3 a {
            color: var(--text-white);
        }

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

        .footer-col h4 {
            font-size: 0.92rem;
            color: var(--text-white);
            margin-bottom: 14px;
            letter-spacing: 0.2px;
        }

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

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

        .footer-col ul li a {
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: all var(--transition-fast);
        }

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

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

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 12px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-cool-silver);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 16px;
            white-space: nowrap;
        }

        .footer-badge i {
            color: var(--accent-neon-cyan);
            font-size: 0.72rem;
        }

        .footer-18plus {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            font-size: 0.9rem;
            font-weight: 800;
            color: var(--text-white);
            background: linear-gradient(135deg, #D32F2F, #B71C1C);
            border-radius: 50%;
            border: 2px solid rgba(255, 255, 255, 0.25);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .footer-bottom p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

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

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

        /* ========== FAB ========== */
        .fab-support {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
        }

        .fab-btn {
            width: 54px;
            height: 54px;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(0, 0, 0, 0.72), rgba(0, 0, 0, 0.72)), linear-gradient(135deg, #CCFF00, #0052FF);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-neon-cyan);
            font-size: 1.2rem;
            cursor: pointer;
            opacity: 0.6;
            animation: fabBreathing 3s ease-in-out infinite;
            transition: all var(--transition-med);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            position: relative;
        }

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

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

        .fab-btn .fab-notification {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 12px;
            height: 12px;
            background: #FF007F;
            border-radius: 50%;
            border: 2px solid var(--bg-deep-space);
            animation: blinkDot 1.5s ease-in-out infinite;
        }

        @keyframes fabBreathing {
            0%, 100% { opacity: 0.6; }
            50% { opacity: 0.85; }
        }

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

        /* ========== RESPONSIVE ========== */
        @media screen and (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .tactics-grid {
                grid-template-columns: 1fr;
            }
            .comparison-wrapper {
                grid-template-columns: 1fr;
            }
            .cta-form-wrapper {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media screen and (max-width: 768px) {
            .header-inner {
                padding: 10px 0;
            }
            .header-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
                padding: 12px 0 8px;
                border-top: 1px solid rgba(0, 240, 255, 0.1);
            }
            .header-nav.open {
                display: flex;
            }
            .header-nav a {
                width: 100%;
                padding: 10px 14px;
                border-radius: 8px;
            }
            .menu-toggle {
                display: flex;
            }
            .header-actions .btn-login {
                display: none;
            }
            .header-actions .btn-signup {
                padding: 8px 16px;
                font-size: 0.82rem;
            }
            .hero-section {
                padding-top: 110px;
                padding-bottom: 50px;
                min-height: auto;
            }
            .hero-badges {
                gap: 8px;
            }
            .hero-badge {
                font-size: 0.76rem;
                padding: 5px 10px;
            }
            .hero-cta-row {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-primary,
            .btn-outline {
                justify-content: center;
                width: 100%;
            }
            .hero-panel {
                padding: 22px 18px;
            }
            .hero-stat-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .hero-stat-number {
                font-size: 1.4rem;
            }
            .metrics-section,
            .tactics-section,
            .comparison-section,
            .faq-section,
            .cta-form-section {
                padding: var(--spacing-lg) 0;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .metric-card {
                padding: 20px 18px;
            }
            .tactic-card-image {
                height: 160px;
            }
            .tactic-card-body {
                padding: 18px 18px 22px;
            }
            .comparison-col {
                padding: 22px 18px;
            }
            .cta-form-wrapper {
                padding: 28px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-form-box {
                padding: 20px 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .fab-support {
                left: 12px;
                bottom: 80px;
            }
            .fab-btn {
                width: 48px;
                height: 48px;
                font-size: 1rem;
                border-radius: 14px;
            }
        }

        @media screen and (max-width: 520px) {
            .header-logo a {
                font-size: 0.95rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
                border-radius: 8px;
            }
            .header-actions .btn-signup {
                padding: 7px 13px;
                font-size: 0.76rem;
            }
            .hero-section h1 {
                font-size: 1.8rem;
            }
            .hero-subtitle {
                font-size: 0.98rem;
            }
            .hero-stat-row {
                grid-template-columns: 1fr;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .metric-value {
                font-size: 1.6rem;
            }
            .tactic-card-body h3 {
                font-size: 1.15rem;
            }
            .cta-form-info h2 {
                font-size: 1.5rem;
            }
        }

/* roulang page: article */
:root {
            --bg-deep: #08090F;
            --bg-navy: #0D111E;
            --bg-card: rgba(13, 17, 30, 0.82);
            --bg-card-hover: rgba(20, 26, 45, 0.92);
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --accent-glow: rgba(0, 82, 255, 0.45);
            --accent-cyan-glow: rgba(0, 240, 255, 0.35);
            --text-white: #FFFFFF;
            --text-silver: #CBD5E1;
            --text-muted: #94A3B8;
            --text-cyan: #7DD3FC;
            --border-glass: rgba(0, 240, 255, 0.18);
            --border-blue: rgba(0, 82, 255, 0.35);
            --border-hover: rgba(0, 240, 255, 0.55);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 26px;
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 20px rgba(0, 82, 255, 0.35);
            --shadow-cyan-glow: 0 0 24px rgba(0, 240, 255, 0.28);
            --shadow-hover: 0 14px 40px rgba(0, 0, 0, 0.6);
            --space-xs: 8px;
            --space-sm: 16px;
            --space-md: 24px;
            --space-lg: 40px;
            --space-xl: 56px;
            --space-2xl: 72px;
            --font-body: 'Inter', 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;
            --transition: all 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --transition-bounce: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

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

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

        body {
            font-family: var(--font-body);
            background-color: var(--bg-deep);
            background-image: radial-gradient(ellipse 80% 50% at 50% -10%, rgba(0, 82, 255, 0.12) 0%, transparent 70%), radial-gradient(ellipse 60% 40% at 90% 20%, rgba(0, 240, 255, 0.06) 0%, transparent 60%);
            color: var(--text-silver);
            line-height: 1.65;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }

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

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

        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 var(--space-sm);
        }

        @media (min-width: 768px) {
            .container {
                padding: 0 var(--space-md);
            }
        }

        /* ===== HEADER ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(8, 9, 15, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(8, 9, 15, 0.96);
            border-bottom-color: rgba(0, 240, 255, 0.2);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
        }

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

        .logo {
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--text-white);
            letter-spacing: -0.01em;
            line-height: 1.2;
            flex-shrink: 0;
            max-width: 240px;
        }

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

        .logo .logo-icon {
            display: inline-block;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            border-radius: 10px;
            text-align: center;
            line-height: 36px;
            margin-right: 10px;
            color: #fff;
            font-size: 0.95rem;
            box-shadow: var(--shadow-glow);
            vertical-align: middle;
        }

        .logo .logo-text {
            display: inline-block;
            vertical-align: middle;
            line-height: 1.25;
        }

        .header-nav {
            display: flex;
            gap: 4px;
            align-items: center;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .header-nav::-webkit-scrollbar {
            display: none;
        }

        .header-nav a {
            display: inline-block;
            padding: 10px 14px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-muted);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            position: relative;
            transition: var(--transition);
        }

        .header-nav a:hover {
            color: var(--text-white);
            background: rgba(0, 240, 255, 0.06);
        }

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

        .header-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 2px;
            box-shadow: 0 0 8px var(--accent-cyan);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: var(--space-xs);
            flex-shrink: 0;
        }

        .btn-login {
            padding: 9px 16px;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-white);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            white-space: nowrap;
        }

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

        .btn-signup {
            padding: 9px 18px;
            font-size: 0.88rem;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-blue), #0038B8);
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 14px rgba(0, 82, 255, 0.4);
            transition: var(--transition-bounce);
            white-space: nowrap;
        }

        .btn-signup:hover {
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 82, 255, 0.55);
        }

        .mobile-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            color: var(--text-white);
            font-size: 1.3rem;
            border: 1px solid var(--border-glass);
            background: rgba(255, 255, 255, 0.04);
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: var(--transition);
        }

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

        @media (max-width: 900px) {
            .header-nav {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                background: rgba(8, 9, 15, 0.98);
                backdrop-filter: blur(20px);
                border-bottom: 1px solid rgba(0, 240, 255, 0.15);
                padding: var(--space-sm);
                display: none;
                overflow-y: auto;
                max-height: 320px;
            }
            .header-nav.open {
                display: flex;
            }
            .header-nav a {
                padding: 14px 18px;
                font-size: 1rem;
                text-align: left;
                border-radius: var(--radius-sm);
            }
            .header-nav a.active::after {
                display: none;
            }
            .header-nav a.active {
                background: rgba(0, 240, 255, 0.1);
            }
            .mobile-toggle {
                display: flex;
            }
            .header-actions {
                margin-left: auto;
            }
        }

        @media (max-width: 520px) {
            .btn-login {
                padding: 8px 10px;
                font-size: 0.8rem;
            }
            .btn-signup {
                padding: 8px 12px;
                font-size: 0.8rem;
            }
            .logo {
                font-size: 0.95rem;
                max-width: 170px;
            }
            .logo .logo-icon {
                width: 30px;
                height: 30px;
                line-height: 30px;
                font-size: 0.8rem;
                margin-right: 6px;
            }
        }

        /* ===== BREADCRUMB ===== */
        .breadcrumb-bar {
            padding: 12px 0;
            background: rgba(13, 17, 30, 0.6);
            border-bottom: 1px solid rgba(0, 240, 255, 0.06);
            margin-top: 68px;
        }

        .breadcrumb-list {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            align-items: center;
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .breadcrumb-list li {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .breadcrumb-list li + li::before {
            content: '/';
            color: var(--text-muted);
            margin-right: 6px;
            font-size: 0.75rem;
        }

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

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

        .breadcrumb-list .current {
            color: var(--accent-cyan);
            font-weight: 600;
        }

        /* ===== ARTICLE HERO ===== */
        .article-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: flex-end;
            overflow: hidden;
            padding: var(--space-2xl) 0 var(--space-lg);
            margin-top: 68px;
        }

        .article-hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            z-index: 1;
        }

        .article-hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(8, 9, 15, 0.55) 0%, rgba(8, 9, 15, 0.82) 55%, var(--bg-deep) 100%);
            z-index: 2;
        }

        .article-hero-content {
            position: relative;
            z-index: 3;
            max-width: 820px;
        }

        .article-category {
            display: inline-block;
            padding: 6px 16px;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid var(--border-glass);
            border-radius: 50px;
            margin-bottom: var(--space-sm);
        }

        .article-hero h1 {
            font-size: clamp(1.8rem, 4.5vw, 2.8rem);
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin-bottom: var(--space-sm);
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: var(--space-sm);
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 12px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50px;
            backdrop-filter: blur(4px);
        }

        .article-meta i {
            color: var(--accent-cyan);
        }

        /* ===== FLASH SALE BAR ===== */
        .flash-sale-bar {
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.15) 0%, rgba(0, 240, 255, 0.08) 50%, rgba(0, 82, 255, 0.1) 100%);
            border-top: 1px solid var(--border-glass);
            border-bottom: 1px solid var(--border-glass);
            padding: var(--space-sm) 0;
            position: relative;
            overflow: hidden;
        }

        .flash-sale-bar::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 200%;
            height: 100%;
            background: linear-gradient(90deg, transparent 0%, rgba(0, 240, 255, 0.08) 50%, transparent 100%);
            animation: shimmer 4s ease-in-out infinite;
            pointer-events: none;
        }

        @keyframes shimmer {
            0% { transform: translateX(0); }
            50% { transform: translateX(25%); }
            100% { transform: translateX(0); }
        }

        .flash-sale-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-sm);
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .flash-sale-text {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .flash-sale-text i {
            color: var(--accent-cyan);
            animation: pulse-icon 1.2s ease-in-out infinite;
        }

        @keyframes pulse-icon {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.3); }
        }

        .countdown {
            display: flex;
            gap: 6px;
            align-items: center;
        }

        .countdown-item {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            background: rgba(8, 9, 15, 0.7);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-sm);
            padding: 4px 10px;
            min-width: 52px;
        }

        .countdown-item strong {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--accent-cyan);
            font-family: var(--font-mono);
            line-height: 1;
        }

        .countdown-item span {
            font-size: 0.65rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        .btn-flash {
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            border-radius: 50px;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.35);
            transition: var(--transition-bounce);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .btn-flash:hover {
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 0 32px rgba(0, 240, 255, 0.55);
        }

        /* ===== MAIN CONTENT ===== */
        .main-content {
            padding: var(--space-lg) 0;
            background: var(--bg-deep);
        }

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

        .pull-quote {
            border-left: 4px solid var(--accent-cyan);
            background: rgba(0, 240, 255, 0.05);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            padding: var(--space-md) var(--space-md);
            margin: var(--space-lg) 0;
            position: relative;
        }

        .pull-quote i {
            position: absolute;
            top: -14px;
            left: 16px;
            font-size: 2rem;
            color: var(--accent-cyan);
            opacity: 0.6;
        }

        .pull-quote p {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-white);
            line-height: 1.6;
            margin: 0;
            font-style: italic;
        }

        .article-body {
            color: var(--text-silver);
            font-size: 1.02rem;
            line-height: 1.75;
        }

        .article-body h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-white);
            margin: var(--space-lg) 0 var(--space-sm);
            line-height: 1.3;
        }

        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 650;
            color: var(--text-white);
            margin: var(--space-md) 0 var(--space-xs);
            line-height: 1.4;
        }

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

        .article-body ul,
        .article-body ol {
            margin: var(--space-sm) 0 var(--space-sm) 1.5rem;
        }

        .article-body li {
            margin-bottom: var(--space-xs);
        }

        .article-body blockquote {
            border-left: 3px solid var(--accent-blue);
            padding-left: var(--space-sm);
            margin: var(--space-sm) 0;
            font-style: italic;
            color: var(--text-muted);
        }

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

        .article-not-found {
            text-align: center;
            padding: var(--space-2xl) var(--space-sm);
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
        }

        .article-not-found h2 {
            color: var(--text-white);
            font-size: 1.6rem;
            margin-bottom: var(--space-sm);
        }

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

        .btn-primary {
            display: inline-block;
            padding: 12px 24px;
            background: linear-gradient(135deg, var(--accent-blue), #0038B8);
            color: #fff;
            font-weight: 700;
            border-radius: 50px;
            transition: var(--transition-bounce);
            box-shadow: var(--shadow-glow);
        }

        .btn-primary:hover {
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 82, 255, 0.5);
        }

        /* ===== SECTION SHARED ===== */
        .section-header {
            margin-bottom: var(--space-lg);
            max-width: 680px;
        }

        .section-header .section-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            margin-bottom: var(--space-xs);
        }

        .section-header h2 {
            font-size: clamp(1.4rem, 2.8vw, 2rem);
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.3;
            margin-bottom: var(--space-xs);
        }

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

        /* ===== GLASS CARDS ===== */
        .glass-card {
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .glass-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover), var(--shadow-cyan-glow);
            transform: translateY(-3px);
        }

        /* ===== METRICS ===== */
        .metrics-section {
            padding: var(--space-xl) 0;
            background: rgba(13, 17, 30, 0.5);
            border-top: 1px solid rgba(0, 240, 255, 0.06);
            border-bottom: 1px solid rgba(0, 240, 255, 0.06);
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--space-md);
        }

        .metric-card {
            padding: var(--space-md);
            text-align: left;
        }

        .metric-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.2), rgba(0, 240, 255, 0.15));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-cyan);
            margin-bottom: var(--space-xs);
        }

        .metric-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1;
            font-family: var(--font-mono);
            letter-spacing: -0.02em;
        }

        .metric-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 6px;
            line-height: 1.45;
        }

        @media (max-width: 900px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .metrics-grid {
                grid-template-columns: 1fr;
                gap: var(--space-sm);
            }
            .metric-value {
                font-size: 1.8rem;
            }
        }

        /* ===== SERVICE MATRIX ===== */
        .service-matrix-section {
            padding: var(--space-xl) 0;
        }

        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--space-md);
        }

        .matrix-card {
            padding: var(--space-md);
        }

        .matrix-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: rgba(0, 82, 255, 0.15);
            border: 1px solid var(--border-blue);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-cyan);
            margin-bottom: var(--space-xs);
            transition: var(--transition);
        }

        .matrix-card:hover .matrix-icon {
            background: rgba(0, 240, 255, 0.2);
            box-shadow: var(--shadow-cyan-glow);
        }

        .matrix-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 6px;
        }

        .matrix-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        @media (max-width: 768px) {
            .matrix-grid {
                grid-template-columns: 1fr;
                gap: var(--space-sm);
            }
        }

        /* ===== COMPARISON ===== */
        .comparison-section {
            padding: var(--space-xl) 0;
            background: rgba(13, 17, 30, 0.5);
            border-top: 1px solid rgba(0, 240, 255, 0.06);
            border-bottom: 1px solid rgba(0, 240, 255, 0.06);
        }

        .comparison-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--space-md);
        }

        .comparison-card {
            padding: var(--space-md);
            border-radius: var(--radius-lg);
            border: 1px solid transparent;
        }

        .comparison-card.before-card {
            background: rgba(120, 20, 20, 0.12);
            border-color: rgba(255, 80, 80, 0.25);
        }

        .comparison-card.after-card {
            background: rgba(0, 82, 255, 0.1);
            border-color: rgba(0, 240, 255, 0.3);
            box-shadow: var(--shadow-cyan-glow);
        }

        .comparison-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: var(--space-sm);
        }

        .before-card h3 {
            color: #FF7B7B;
        }

        .after-card h3 {
            color: var(--accent-cyan);
        }

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

        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-silver);
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

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

        .comparison-list i {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            margin-top: 3px;
        }

        .before-card .comparison-list i {
            background: rgba(255, 80, 80, 0.2);
            color: #FF7B7B;
        }

        .after-card .comparison-list i {
            background: rgba(0, 240, 255, 0.15);
            color: var(--accent-cyan);
        }

        @media (max-width: 768px) {
            .comparison-grid {
                grid-template-columns: 1fr;
                gap: var(--space-sm);
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: var(--space-xl) 0;
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
        }

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

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

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

        .faq-question {
            width: 100%;
            text-align: left;
            padding: var(--space-sm) var(--space-md);
            font-size: 1rem;
            font-weight: 650;
            color: var(--text-white);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-sm);
            transition: var(--transition);
        }

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

        .faq-question .faq-chevron {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(0, 240, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: var(--accent-cyan);
            transition: var(--transition);
        }

        .faq-item.active .faq-chevron {
            transform: rotate(180deg);
            background: rgba(0, 240, 255, 0.25);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
        }

        .faq-answer p {
            padding: 0 var(--space-md) var(--space-sm);
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: var(--space-xl) 0;
            background: rgba(13, 17, 30, 0.5);
            border-top: 1px solid rgba(0, 240, 255, 0.06);
        }

        .cta-card {
            padding: var(--space-lg);
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.08) 0%, rgba(0, 240, 255, 0.04) 100%);
        }

        .cta-card h2 {
            font-size: clamp(1.4rem, 2.8vw, 1.9rem);
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: var(--space-xs);
        }

        .cta-card > p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: var(--space-md);
            line-height: 1.6;
        }

        .cta-form {
            display: flex;
            flex-direction: column;
            gap: var(--space-xs);
            max-width: 480px;
            margin: 0 auto;
        }

        .cta-form input {
            padding: 14px 18px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-sm);
            color: var(--text-white);
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .cta-form input::placeholder {
            color: var(--text-muted);
        }

        .cta-form input:focus {
            outline: none;
            border-color: var(--accent-cyan);
            box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.15);
        }

        .btn-glow {
            padding: 14px 24px;
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            border-radius: 50px;
            box-shadow: 0 0 24px rgba(0, 82, 255, 0.45);
            transition: var(--transition-bounce);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .btn-glow:hover {
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 0 36px rgba(0, 240, 255, 0.6);
        }

        @media (min-width: 640px) {
            .cta-form {
                flex-direction: row;
                flex-wrap: wrap;
                justify-content: center;
            }
            .cta-form input {
                flex: 1;
                min-width: 180px;
            }
            .cta-form .btn-glow {
                flex-shrink: 0;
            }
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: #06070D;
            border-top: 1px solid rgba(0, 240, 255, 0.1);
            padding: var(--space-xl) 0 var(--space-md);
            color: var(--text-muted);
        }

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

        .footer-brand h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: var(--space-xs);
        }

        .footer-brand h3 a {
            color: var(--text-white);
        }

        .footer-brand h3 a:hover {
            color: var(--accent-cyan);
        }

        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.65;
            color: var(--text-muted);
        }

        .footer-col h4 {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-white);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: var(--space-sm);
        }

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

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

        .footer-col ul li a {
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: var(--transition);
        }

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

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

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            padding: 6px 12px;
            background: rgba(0, 240, 255, 0.06);
            border: 1px solid var(--border-glass);
            border-radius: 50px;
            color: var(--text-silver);
        }

        .footer-18plus {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: rgba(255, 60, 60, 0.15);
            border: 2px solid rgba(255, 60, 60, 0.5);
            border-radius: 50%;
            font-weight: 800;
            font-size: 0.9rem;
            color: #FF7B7B;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: var(--space-md);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: var(--space-sm);
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-bottom p {
            margin: 0;
        }

        .footer-bottom a {
            color: var(--text-silver);
            text-decoration: underline;
        }

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

        .footer-bottom i {
            color: var(--accent-cyan);
            margin-right: 6px;
        }

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-md);
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--space-sm);
            }
            .footer-brand {
                grid-column: auto;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
        }

        /* ===== FAB ===== */
        .fab-cyber {
            position: fixed;
            left: 16px;
            bottom: 24px;
            z-index: 50;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 50px;
            background: rgba(0, 0, 0, 0.65);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), linear-gradient(135deg, #0052FF, #00F0FF);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            box-shadow: 0 0 18px rgba(0, 240, 255, 0.45);
            color: var(--accent-cyan);
            font-size: 1.3rem;
            opacity: 0.6;
            transition: var(--transition-bounce);
            cursor: pointer;
            animation: fab-breathe 3.5s ease-in-out infinite;
            min-width: 52px;
            min-height: 52px;
        }

        @keyframes fab-breathe {
            0%, 100% { opacity: 0.6; box-shadow: 0 0 18px rgba(0, 240, 255, 0.4); }
            50% { opacity: 1; box-shadow: 0 0 30px rgba(0, 240, 255, 0.65); }
        }

        .fab-cyber:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 40px rgba(0, 240, 255, 0.7);
            color: #fff;
        }

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

        .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 12px;
            height: 12px;
            background: #FF007F;
            border: 2px solid #08090F;
            border-radius: 50%;
            animation: fab-blink 1.6s ease-in-out infinite;
        }

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

        @media (max-width: 520px) {
            .fab-cyber {
                width: 48px;
                height: 48px;
                min-width: 48px;
                min-height: 48px;
                left: 12px;
                bottom: 16px;
                font-size: 1.15rem;
            }
        }

        /* ===== RESPONSIVE EXTRA ===== */
        @media (max-width: 640px) {
            .article-hero {
                min-height: 300px;
                padding: var(--space-xl) 0 var(--space-md);
            }
            .article-hero h1 {
                font-size: 1.5rem;
            }
            .flash-sale-inner {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
            }
            .flash-sale-text {
                justify-content: center;
            }
            .countdown {
                justify-content: center;
            }
            .btn-flash {
                justify-content: center;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .pull-quote p {
                font-size: 1rem;
            }
        }

/* roulang page: category2 */
/* ============ DESIGN VARIABLES ============ */
        :root {
            --bg-primary: #08090F;
            --bg-secondary: #0D111E;
            --bg-glass: rgba(13, 17, 30, 0.68);
            --bg-glass-light: rgba(20, 28, 50, 0.52);
            --accent-primary: #0052FF;
            --accent-primary-hover: #0041CC;
            --accent-secondary: #00F0FF;
            --accent-secondary-hover: #00C8D4;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #8A94A5;
            --border-soft: rgba(0, 240, 255, 0.14);
            --border-glow: rgba(0, 240, 255, 0.38);
            --border-electric: rgba(0, 82, 255, 0.28);
            --shadow-neon-blue: 0 0 22px rgba(0, 82, 255, 0.28);
            --shadow-neon-cyan: 0 0 18px rgba(0, 240, 255, 0.3);
            --shadow-card-hover: 0 12px 40px rgba(0, 0, 0, 0.45);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 32px;
            --spacing-lg: 56px;
            --spacing-xl: 84px;
            --font-body: 'Segoe UI', system-ui, -apple-system, 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-med: 0.32s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* ============ BASE RESET & GLOBAL ============ */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

        body {
            font-family: var(--font-body);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img { max-width: 100%; height: auto; display: block; border: 0; }
        a { text-decoration: none; color: inherit; transition: color var(--transition-fast); }
        a:hover, a:focus-visible { color: var(--accent-secondary); outline: none; }
        a:focus-visible { outline: 2px solid var(--accent-secondary); outline-offset: 3px; border-radius: 4px; }

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

        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container { padding: 0 18px; }
        }

        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 0;
            letter-spacing: -0.01em;
        }

        h1 { font-size: clamp(2.1rem, 4.2vw, 3.15rem); }
        h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); }
        h3 { font-size: 1.25rem; }
        h4 { font-size: 1.1rem; }

        p { margin-bottom: 0; }
        ul, ol { list-style: none; }

        section { margin: 0; }

        /* ============ BODY BACKGROUND OVERLAY ============ */
        body::before {
            content: "";
            position: fixed;
            inset: 0;
            background-image: radial-gradient(ellipse at 15% 20%, rgba(0, 82, 255, 0.07), transparent 55%),
                              radial-gradient(ellipse at 80% 85%, rgba(0, 240, 255, 0.05), transparent 50%),
                              radial-gradient(circle at 50% 50%, rgba(13, 17, 30, 0.7), transparent 75%);
            pointer-events: none;
            z-index: 0;
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(8, 9, 15, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-soft);
            transition: box-shadow var(--transition-med);
        }

        .site-header.scrolled { box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45); }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            padding: 16px 24px;
            max-width: 1180px;
            margin: 0 auto;
        }

        @media (min-width: 769px) {
            .header-inner { padding: 18px 24px; }
        }

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

        .header-brand .brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.15rem;
            box-shadow: var(--shadow-neon-blue);
            flex-shrink: 0;
        }

        .header-brand .brand-name {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-primary);
            line-height: 1.2;
            letter-spacing: -0.02em;
            max-width: 230px;
        }

        .header-brand .brand-name span {
            display: block;
            font-size: 0.72rem;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0.03em;
        }

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

        .header-nav a {
            padding: 10px 16px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-secondary);
            letter-spacing: 0.015em;
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .header-nav a:hover {
            color: var(--text-primary);
            background: rgba(0, 240, 255, 0.07);
        }

        .header-nav a.active {
            color: var(--text-primary);
            background: rgba(0, 82, 255, 0.16);
            box-shadow: inset 0 -2px 0 var(--accent-secondary);
        }

        .header-nav a.active::after {
            content: "";
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            background: var(--accent-secondary);
            border-radius: 99px;
            box-shadow: var(--shadow-neon-cyan);
        }

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

        .btn-header-login {
            padding: 10px 18px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--text-primary);
            background: transparent;
            border: 1px solid var(--border-soft);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

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

        .btn-header-signup {
            padding: 10px 20px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 0.88rem;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-primary), #0057E8);
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 2px 12px rgba(0, 82, 255, 0.35);
        }

        .btn-header-signup:hover {
            background: linear-gradient(135deg, #0059F0, var(--accent-secondary));
            box-shadow: 0 4px 20px rgba(0, 240, 255, 0.35);
            transform: translateY(-1px);
        }

        .mobile-nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid var(--border-soft);
            color: var(--text-primary);
            font-size: 1.25rem;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .mobile-nav-toggle:hover {
            background: rgba(0, 240, 255, 0.14);
            border-color: var(--border-glow);
        }

        .mobile-nav-panel {
            display: none;
            background: rgba(8, 9, 15, 0.96);
            backdrop-filter: blur(20px);
            border-top: 1px solid var(--border-soft);
            padding: 16px 24px 20px;
            flex-direction: column;
            gap: 8px;
        }

        .mobile-nav-panel a {
            padding: 14px 16px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }

        .mobile-nav-panel a.active {
            color: var(--text-primary);
            background: rgba(0, 82, 255, 0.16);
        }

        .mobile-nav-panel a:hover {
            background: rgba(0, 240, 255, 0.07);
            color: var(--text-primary);
        }

        .mobile-nav-panel .btn-header-login,
        .mobile-nav-panel .btn-header-signup {
            text-align: center;
            margin-top: 8px;
        }

        @media (max-width: 768px) {
            .header-nav { display: none; }
            .mobile-nav-toggle { display: flex; }
            .header-actions { display: none; }
            .mobile-nav-panel.active { display: flex; }
            .header-brand .brand-name { font-size: 0.92rem; max-width: 190px; }
            .header-brand .brand-icon { width: 36px; height: 36px; font-size: 1rem; border-radius: 8px; }
        }

        @media (max-width: 520px) {
            .header-brand .brand-name { font-size: 0.82rem; max-width: 150px; }
            .header-brand .brand-name span { font-size: 0.65rem; }
            .header-brand .brand-icon { width: 32px; height: 32px; font-size: 0.9rem; }
        }

        /* ============ HERO SECTION ============ */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 140px 0 80px;
            background-image: linear-gradient(135deg, rgba(8,9,15,0.88) 20%, rgba(13,17,30,0.72) 100%), url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .hero-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(8,9,15,0.55) 0%, rgba(8,9,15,0.35) 60%, rgba(8,9,15,0.85) 100%);
            pointer-events: none;
            z-index: 1;
        }

        .hero-section .container {
            position: relative;
            z-index: 2;
        }

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

        @media (max-width: 1024px) {
            .hero-grid { gap: 36px; grid-template-columns: 1.1fr 0.9fr; }
        }

        @media (max-width: 768px) {
            .hero-section { padding: 120px 0 60px; min-height: auto; }
            .hero-grid { grid-template-columns: 1fr; gap: 32px; }
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: 99px;
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid var(--border-glow);
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--accent-secondary);
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 20px;
            animation: badgePulse 2.5s ease-in-out infinite;
        }

        @keyframes badgePulse {
            0%, 100% { box-shadow: 0 0 12px rgba(0, 240, 255, 0.2); }
            50% { box-shadow: 0 0 22px rgba(0, 240, 255, 0.4); }
        }

        .hero-badge i { font-size: 0.85rem; }

        .hero-headline {
            font-size: clamp(2.2rem, 4.5vw, 3.3rem);
            font-weight: 800;
            letter-spacing: -0.03em;
            line-height: 1.18;
            margin-bottom: 18px;
            color: var(--text-primary);
        }

        .hero-headline .highlight-gradient {
            background: linear-gradient(135deg, var(--accent-secondary) 10%, var(--accent-primary) 90%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }

        .hero-subtitle {
            font-size: 1.08rem;
            line-height: 1.65;
            color: var(--text-secondary);
            max-width: 560px;
            margin-bottom: 28px;
        }

        .group-count-box {
            background: rgba(13, 17, 30, 0.6);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            margin-bottom: 24px;
            max-width: 480px;
        }

        .group-count-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 10px;
            flex-wrap: wrap;
            gap: 8px;
        }

        .group-count-label {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-secondary);
        }

        .group-count-number {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--accent-secondary);
            text-shadow: var(--shadow-neon-cyan);
        }

        .group-progress-bar {
            width: 100%;
            height: 8px;
            border-radius: 99px;
            background: rgba(0, 240, 255, 0.1);
            overflow: hidden;
        }

        .group-progress-fill {
            width: 89%;
            height: 100%;
            border-radius: 99px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
            box-shadow: var(--shadow-neon-cyan);
            transition: width 1.2s ease-out;
        }

        .group-progress-text {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 8px;
        }

        .hero-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }

        .btn-primary {
            padding: 16px 32px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-primary) 0%, #0059F0 55%, var(--accent-secondary) 145%);
            border: none;
            cursor: pointer;
            transition: all var(--transition-med);
            box-shadow: 0 4px 24px rgba(0, 82, 255, 0.38);
            letter-spacing: 0.01em;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-primary:hover {
            box-shadow: 0 8px 36px rgba(0, 240, 255, 0.42);
            transform: translateY(-2px);
            background: linear-gradient(135deg, #0059F0 0%, var(--accent-secondary) 140%);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(1px) scale(0.98);
            box-shadow: 0 2px 12px rgba(0, 82, 255, 0.3);
        }

        .btn-secondary {
            padding: 16px 32px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
            background: rgba(0, 240, 255, 0.06);
            border: 1px solid var(--border-glow);
            cursor: pointer;
            transition: all var(--transition-med);
            letter-spacing: 0.01em;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-secondary:hover {
            background: rgba(0, 240, 255, 0.12);
            border-color: var(--accent-secondary);
            box-shadow: var(--shadow-neon-cyan);
            transform: translateY(-2px);
            color: var(--text-primary);
        }

        .btn-secondary:active {
            transform: translateY(1px) scale(0.98);
        }

        .hero-trust-line {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .hero-trust-line i {
            color: var(--accent-secondary);
            font-size: 0.9rem;
        }

        .hero-trust-line span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* Hero right panel - glass card */
        .hero-panel-card {
            background: var(--bg-glass);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), var(--shadow-neon-blue);
            transition: box-shadow var(--transition-med);
        }

        .hero-panel-card:hover {
            box-shadow: 0 24px 70px rgba(0, 0, 0, 0.55), 0 0 32px rgba(0, 240, 255, 0.22);
        }

        .hero-panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
        }

        .hero-panel-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .hero-panel-badge {
            padding: 4px 12px;
            border-radius: 99px;
            background: rgba(0, 240, 255, 0.12);
            border: 1px solid var(--border-glow);
            font-size: 0.7rem;
            font-weight: 700;
            color: var(--accent-secondary);
            letter-spacing: 0.06em;
            text-transform: uppercase;
        }

        .hero-panel-metrics {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
            margin-bottom: 22px;
        }

        .hero-metric-item {
            background: rgba(8, 9, 15, 0.5);
            border-radius: var(--radius-md);
            padding: 16px;
            border: 1px solid var(--border-soft);
        }

        .hero-metric-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: rgba(0, 82, 255, 0.18);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-secondary);
            font-size: 0.9rem;
            margin-bottom: 10px;
        }

        .hero-metric-number {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.1;
            margin-bottom: 4px;
        }

        .hero-metric-label {
            font-size: 0.76rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .hero-panel-progress {
            margin-bottom: 20px;
        }

        .hero-panel-progress-label {
            display: flex;
            justify-content: space-between;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 8px;
        }

        .hero-panel-progress-bar {
            height: 10px;
            border-radius: 99px;
            background: rgba(0, 240, 255, 0.08);
            overflow: hidden;
        }

        .hero-panel-progress-fill {
            width: 72%;
            height: 100%;
            border-radius: 99px;
            background: linear-gradient(90deg, #0052FF, #00F0FF);
            box-shadow: 0 0 14px rgba(0, 240, 255, 0.4);
        }

        .hero-panel-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .hero-panel-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        .hero-panel-list li i {
            color: var(--accent-secondary);
            font-size: 0.8rem;
            margin-top: 3px;
            flex-shrink: 0;
        }

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

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

        .section-label {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 99px;
            background: rgba(0, 82, 255, 0.12);
            border: 1px solid var(--border-electric);
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--accent-secondary);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: clamp(1.7rem, 3vw, 2.3rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            line-height: 1.25;
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.65;
            max-width: 640px;
            margin-bottom: 36px;
        }

        /* ============ METRICS DASHBOARD ============ */
        .metrics-dashboard {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        @media (max-width: 1024px) {
            .metrics-dashboard { grid-template-columns: repeat(2, 1fr); gap: 14px; }
        }

        @media (max-width: 520px) {
            .metrics-dashboard { grid-template-columns: 1fr; }
        }

        .metric-card {
            background: var(--bg-glass);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all var(--transition-med);
            position: relative;
            overflow: hidden;
        }

        .metric-card::after {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
            opacity: 0;
            transition: opacity var(--transition-fast);
        }

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

        .metric-card:hover::after { opacity: 1; }

        .metric-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(0, 82, 255, 0.16);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-secondary);
            font-size: 1.1rem;
            margin-bottom: 16px;
        }

        .metric-value {
            font-size: 2.1rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.1;
            margin-bottom: 6px;
            letter-spacing: -0.02em;
        }

        .metric-unit {
            font-size: 1rem;
            font-weight: 600;
            color: var(--accent-secondary);
        }

        .metric-name {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 4px;
        }

        .metric-trend {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.78rem;
            font-weight: 700;
            color: #00E676;
        }

        .metric-trend i { font-size: 0.75rem; }

        /* ============ SERVICE MATRIX ============ */
        .service-matrix {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        @media (max-width: 768px) {
            .service-matrix { grid-template-columns: 1fr; gap: 18px; }
        }

        .service-item {
            display: flex;
            gap: 20px;
            background: rgba(13, 17, 30, 0.55);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all var(--transition-med);
            align-items: flex-start;
        }

        .service-item:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .service-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.2), rgba(0, 240, 255, 0.12));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-secondary);
            font-size: 1.3rem;
            flex-shrink: 0;
            border: 1px solid var(--border-soft);
        }

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

        .service-content p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 10px;
        }

        .service-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .service-tag {
            padding: 4px 12px;
            border-radius: 99px;
            background: rgba(0, 240, 255, 0.07);
            border: 1px solid var(--border-soft);
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--text-secondary);
        }

        /* ============ RESULT COMPARISON ============ */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-soft);
        }

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

        .comparison-col {
            padding: 36px 32px;
            background: rgba(8, 9, 15, 0.6);
        }

        .comparison-col--before { border-right: 1px solid var(--border-soft); }

        @media (max-width: 768px) {
            .comparison-col--before { border-right: none; border-bottom: 1px solid var(--border-soft); }
        }

        .comparison-col-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 20px;
        }

        .comparison-col-header .col-badge {
            padding: 6px 14px;
            border-radius: 99px;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            text-transform: uppercase;
        }

        .col-badge--before {
            background: rgba(255, 82, 82, 0.12);
            color: #FF6B6B;
            border: 1px solid rgba(255, 82, 82, 0.25);
        }

        .col-badge--after {
            background: rgba(0, 230, 118, 0.12);
            color: #00E676;
            border: 1px solid rgba(0, 230, 118, 0.25);
        }

        .comparison-col h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
        }

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

        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.55;
        }

        .comparison-list li i {
            flex-shrink: 0;
            margin-top: 3px;
            font-size: 0.85rem;
        }

        .list-icon--bad { color: #FF6B6B; }
        .list-icon--good { color: #00E676; }

        /* ============ FAQ ============ */
        .faq-wrap {
            max-width: 780px;
            margin: 0 auto;
        }

        .faq-item {
            background: rgba(13, 17, 30, 0.5);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

        .faq-item.active {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-neon-blue);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            background: transparent;
            border: none;
            cursor: pointer;
            color: var(--text-primary);
            font-weight: 700;
            font-size: 0.98rem;
            text-align: left;
            transition: all var(--transition-fast);
            letter-spacing: 0.01em;
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: rgba(0, 240, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            color: var(--accent-secondary);
            transition: transform var(--transition-fast);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease-out, padding 0.3s ease-out;
            padding: 0 22px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        .faq-answer p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ============ CTA / FORM SECTION ============ */
        .cta-section {
            padding: var(--spacing-lg) 0;
            background-image: radial-gradient(ellipse at 50% 100%, rgba(0, 82, 255, 0.1), transparent 65%),
                              radial-gradient(ellipse at 50% 0%, rgba(0, 240, 255, 0.06), transparent 50%);
        }

        .cta-card {
            background: var(--bg-glass);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-xl);
            padding: 40px clamp(20px, 4vw, 48px);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), var(--shadow-neon-blue);
            text-align: left;
            max-width: 720px;
        }

        .cta-card h2 {
            font-size: clamp(1.6rem, 2.8vw, 2.1rem);
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            margin-bottom: 10px;
        }

        .cta-card p {
            font-size: 0.98rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 24px;
        }

        .cta-form {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        @media (max-width: 640px) {
            .cta-form { grid-template-columns: 1fr; }
        }

        .cta-form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .cta-form-group label {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-secondary);
        }

        .cta-form-group input {
            padding: 14px 16px;
            border-radius: 10px;
            background: rgba(8, 9, 15, 0.6);
            border: 1px solid var(--border-soft);
            color: var(--text-primary);
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            outline: none;
        }

        .cta-form-group input::placeholder {
            color: var(--text-muted);
        }

        .cta-form-group input:focus {
            border-color: var(--accent-secondary);
            box-shadow: 0 0 16px rgba(0, 240, 255, 0.2);
        }

        .cta-form .btn-primary {
            grid-column: 1 / -1;
            justify-content: center;
            width: 100%;
        }

        @media (max-width: 640px) {
            .cta-form .btn-primary { grid-column: auto; }
        }

        .cta-form-note {
            grid-column: 1 / -1;
            font-size: 0.78rem;
            color: var(--text-muted);
            text-align: left;
        }

        @media (max-width: 640px) {
            .cta-form-note { grid-column: auto; }
        }

        /* ============ FAB ============ */
        .fab-support {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 20px;
            border-radius: 99px;
            background: rgba(8, 9, 15, 0.7);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(8, 9, 15, 0.7), rgba(8, 9, 15, 0.7)), linear-gradient(135deg, #00F0FF, #0052FF);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            color: var(--text-primary);
            cursor: pointer;
            transition: all var(--transition-med);
            box-shadow: 0 0 18px rgba(0, 240, 255, 0.28);
            min-width: 48px;
            min-height: 48px;
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.02em;
            opacity: 0.65;
            animation: fabBreathe 3.2s ease-in-out infinite;
        }

        @keyframes fabBreathe {
            0%, 100% { opacity: 0.65; box-shadow: 0 0 18px rgba(0, 240, 255, 0.22); }
            50% { opacity: 1; box-shadow: 0 0 32px rgba(0, 240, 255, 0.42); }
        }

        .fab-support:hover {
            opacity: 1;
            transform: scale(1.06);
            box-shadow: 0 0 36px rgba(0, 240, 255, 0.5);
            color: var(--text-primary);
        }

        .fab-support:active {
            transform: scale(0.95);
            box-shadow: 0 0 22px rgba(255, 0, 127, 0.4);
        }

        .fab-support .fab-icon {
            font-size: 1.15rem;
            color: var(--accent-secondary);
            animation: fabIconGlow 3.2s ease-in-out infinite;
        }

        @keyframes fabIconGlow {
            0%, 100% { filter: drop-shadow(0 0 4px rgba(0, 240, 255, 0.4)); }
            50% { filter: drop-shadow(0 0 10px rgba(0, 240, 255, 0.8)); }
        }

        .fab-support .fab-notification {
            position: absolute;
            top: 6px;
            right: 8px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #00E676;
            box-shadow: 0 0 10px rgba(0, 230, 118, 0.8);
            animation: fabBlink 1.6s ease-in-out infinite;
        }

        @keyframes fabBlink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.25; }
        }

        @media (max-width: 520px) {
            .fab-support { left: 12px; bottom: 80px; padding: 12px 16px; font-size: 0.75rem; gap: 8px; }
            .fab-support .fab-label { display: none; }
            .fab-support .fab-icon { font-size: 1.2rem; }
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: rgba(8, 9, 15, 0.9);
            border-top: 1px solid rgba(0, 240, 255, 0.12);
            padding: var(--spacing-lg) 0 24px;
            position: relative;
            z-index: 2;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.1fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1.2fr 1fr 1fr; }
        }

        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
        }

        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; gap: 20px; }
        }

        .footer-brand h3 {
            font-size: 1.2rem;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .footer-brand h3 a { color: var(--text-white); }

        .footer-brand h3 a:hover { color: var(--accent-secondary); }

        .footer-brand p {
            font-size: 0.86rem;
            color: var(--text-muted);
            line-height: 1.65;
            max-width: 340px;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

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

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

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

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 12px;
            border-radius: 8px;
            background: rgba(0, 240, 255, 0.06);
            border: 1px solid var(--border-soft);
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--text-secondary);
        }

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

        .footer-18plus {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid rgba(255, 215, 0, 0.45);
            color: #FFD700;
            font-weight: 800;
            font-size: 1rem;
            letter-spacing: 0.05em;
        }

        .footer-bottom {
            border-top: 1px solid rgba(0, 240, 255, 0.08);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

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

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

        .footer-bottom i {
            color: var(--accent-secondary);
        }

        @media (max-width: 640px) {
            .footer-bottom { flex-direction: column; text-align: center; gap: 8px; }
        }

        /* ============ RESPONSIVE EXTRA ============ */
        @media (max-width: 1024px) {
            :root { --spacing-lg: 48px; --spacing-xl: 68px; }
        }

        @media (max-width: 768px) {
            :root { --spacing-lg: 36px; --spacing-xl: 52px; }
            .section-block { padding: var(--spacing-md) 0; }
        }

        @media (max-width: 520px) {
            :root { --spacing-lg: 28px; }
            .hero-buttons { flex-direction: column; }
            .btn-primary, .btn-secondary { width: 100%; justify-content: center; }
            .hero-trust-line { flex-direction: column; align-items: flex-start; gap: 8px; }
            .metric-value { font-size: 1.6rem; }
        }