/* roulang page: index */
/* =============== DESIGN SYSTEM =============== */
        :root {
            --bg-primary: #030712;
            --bg-secondary: #081229;
            --bg-tertiary: #0c1a35;
            --accent-blue: #2563EB;
            --accent-cyan: #38BDF8;
            --accent-glow: rgba(37, 99, 235, 0.25);
            --text-white: #F8FAFC;
            --text-slate: #94A3B8;
            --text-holo: #60A5FA;
            --border-subtle: rgba(56, 189, 248, 0.15);
            --border-glow: rgba(56, 189, 248, 0.4);
            --radius-sm: 10px;
            --radius-md: 18px;
            --radius-lg: 28px;
            --radius-xl: 38px;
            --shadow-card: 0 8px 30px rgba(3, 7, 18, 0.6);
            --shadow-glow: 0 0 22px rgba(56, 189, 248, 0.16);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 28px;
            --spacing-lg: 48px;
            --spacing-xl: 72px;
            --spacing-2xl: 100px;
            --font-primary: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
        }

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

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

        body {
            font-family: var(--font-primary);
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.6;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

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

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

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

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

        ul, ol {
            list-style: none;
        }

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

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

        ::selection {
            background: var(--accent-blue);
            color: #fff;
        }

        /* =============== CONTAINER =============== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (min-width: 1440px) {
            .container { max-width: 1350px; }
        }

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

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

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

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

        .section--gradient-border {
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .section-header {
            margin-bottom: var(--spacing-lg);
            max-width: 800px;
        }

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

        .section-header--center {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            background: rgba(56, 189, 248, 0.08);
            border: 1px solid rgba(56, 189, 248, 0.25);
            border-radius: 999px;
            padding: 6px 16px;
            margin-bottom: 14px;
        }

        .section-heading {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 1rem;
            line-height: 1.65;
            color: var(--text-slate);
            max-width: 720px;
        }

        .section-header--center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        @media (max-width: 1024px) {
            .section-heading { font-size: 1.7rem; }
        }

        @media (max-width: 768px) {
            .section { padding: var(--spacing-lg) 0; }
            .section-heading { font-size: 1.4rem; }
            .section-desc { font-size: 0.92rem; }
        }

        /* =============== BUTTONS =============== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-weight: 700;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            border-radius: 999px;
            padding: 14px 28px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            white-space: nowrap;
            line-height: 1.2;
            text-align: center;
        }

        .btn--primary {
            background: linear-gradient(135deg, var(--accent-blue) 0%, #1d4ed8 100%);
            color: #fff;
            box-shadow: 0 4px 20px rgba(37, 99, 235, 0.35);
            border: 1px solid rgba(56, 189, 248, 0.3);
        }

        .btn--primary:hover, .btn--primary:focus {
            background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
            color: #fff;
            box-shadow: 0 6px 30px rgba(37, 99, 235, 0.55);
            transform: translateY(-2px);
        }

        .btn--primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 12px rgba(37, 99, 235, 0.3);
        }

        .btn--ghost {
            background: transparent;
            color: var(--text-white);
            border: 1px solid rgba(56, 189, 248, 0.4);
            box-shadow: none;
        }

        .btn--ghost:hover, .btn--ghost:focus {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(56, 189, 248, 0.06);
            box-shadow: 0 0 16px rgba(56, 189, 248, 0.2);
        }

        .btn--gold {
            background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
            color: #030712;
            box-shadow: 0 4px 18px rgba(245, 158, 11, 0.3);
            border: 1px solid rgba(245, 158, 11, 0.5);
        }

        .btn--gold:hover, .btn--gold:focus {
            background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
            color: #030712;
            box-shadow: 0 6px 26px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
        }

        .btn--sm {
            padding: 10px 20px;
            font-size: 0.8rem;
        }

        .btn--lg {
            padding: 18px 38px;
            font-size: 1rem;
        }

        .btn--block {
            width: 100%;
        }

        @media (max-width: 520px) {
            .btn { padding: 12px 22px; font-size: 0.82rem; }
            .btn--lg { padding: 15px 30px; font-size: 0.9rem; }
        }

        /* =============== NAVBAR =============== */
        .site-header {
            background: rgba(3, 7, 18, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            position: sticky;
            top: 0;
            z-index: 900;
            transition: var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 8px 30px rgba(3, 7, 18, 0.6);
            border-bottom-color: var(--border-glow);
        }

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

        .navbar__brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            max-width: 280px;
        }

        .navbar__brand a {
            color: var(--text-white);
            font-weight: 800;
            font-size: 0.95rem;
            line-height: 1.25;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
        }

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

        .navbar__brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: 0 0 14px rgba(56, 189, 248, 0.4);
        }

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

        .navbar__link {
            color: var(--text-slate);
            font-size: 0.85rem;
            font-weight: 600;
            padding: 8px 14px;
            border-radius: 999px;
            transition: var(--transition);
            letter-spacing: 0.01em;
        }

        .navbar__link:hover, .navbar__link:focus {
            color: var(--text-white);
            background: rgba(56, 189, 248, 0.08);
        }

        .navbar__link--active {
            color: var(--accent-cyan);
            background: rgba(56, 189, 248, 0.12);
            border: 1px solid rgba(56, 189, 248, 0.25);
        }

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

        .navbar__toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            border: 1px solid var(--border-subtle);
            color: var(--text-white);
            font-size: 1.2rem;
            align-items: center;
            justify-content: center;
            background: rgba(56, 189, 248, 0.06);
            transition: var(--transition);
        }

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

        .mobile-menu {
            display: none;
            padding: 16px 0;
            border-top: 1px solid var(--border-subtle);
            background: rgba(3, 7, 18, 0.95);
            backdrop-filter: blur(18px);
        }

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

        .mobile-menu__link {
            display: block;
            padding: 12px 20px;
            color: var(--text-slate);
            font-weight: 600;
            font-size: 0.9rem;
            border-radius: 10px;
            margin: 4px 0;
            transition: var(--transition);
        }

        .mobile-menu__link:hover {
            color: var(--accent-cyan);
            background: rgba(56, 189, 248, 0.08);
        }

        .mobile-menu__auth {
            display: flex;
            gap: 10px;
            padding: 16px 20px;
            margin-top: 8px;
        }

        .mobile-menu__auth .btn {
            flex: 1;
        }

        @media (max-width: 1024px) {
            .navbar__links { display: none; }
            .navbar__auth { display: none; }
            .navbar__toggle { display: inline-flex; }
        }

        @media (max-width: 520px) {
            .navbar__brand { max-width: 210px; }
            .navbar__brand a { font-size: 0.8rem; }
            .navbar__brand-icon { width: 30px; height: 30px; font-size: 0.9rem; }
        }

        /* =============== HERO =============== */
        .hero {
            padding: var(--spacing-xl) 0 var(--spacing-lg);
            background: url('/assets/images/8ae7ddbfde557aaa.jpg') center/cover no-repeat;
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(3, 7, 18, 0.9) 0%, rgba(3, 7, 18, 0.65) 50%, rgba(8, 18, 41, 0.8) 100%);
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 70% 30%, rgba(37, 99, 235, 0.15) 0%, transparent 55%);
            z-index: 1;
        }

        .hero__inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: var(--spacing-lg);
            align-items: center;
        }

        .hero__content {
            text-align: left;
        }

        .hero__badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(56, 189, 248, 0.12);
            border: 1px solid rgba(56, 189, 248, 0.3);
            border-radius: 999px;
            padding: 8px 18px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            margin-bottom: 20px;
        }

        .hero__badge i {
            animation: pulse-icon 2s ease-in-out infinite;
        }

        @keyframes pulse-icon {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.6; transform: scale(0.92); }
        }

        .hero__title {
            font-size: 2.6rem;
            font-weight: 900;
            line-height: 1.2;
            color: var(--text-white);
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }

        .hero__title .highlight {
            background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-cyan) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero__desc {
            font-size: 1.05rem;
            line-height: 1.7;
            color: var(--text-slate);
            margin-bottom: 28px;
            max-width: 580px;
        }

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

        .hero__stats {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }

        .hero__stat {
            text-align: left;
        }

        .hero__stat-num {
            font-family: var(--font-mono);
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-cyan);
            line-height: 1.2;
        }

        .hero__stat-label {
            font-size: 0.72rem;
            color: var(--text-slate);
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }

        /* Hero right panel: live preview + countdown + subscribe */
        .hero__panel {
            background: rgba(8, 18, 41, 0.7);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-glow), var(--shadow-card);
        }

        .hero__panel-label {
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: #f59e0b;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero__panel-label i {
            color: #ef4444;
            animation: pulse-icon 1.2s ease-in-out infinite;
        }

        .hero__preview {
            width: 100%;
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 20px;
            border: 1px solid var(--border-subtle);
            background: rgba(3, 7, 18, 0.6);
            position: relative;
        }

        .hero__preview img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            opacity: 0.85;
        }

        .hero__preview::after {
            content: '● PHIÊN BAY TRỰC TIẾP';
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(3, 7, 18, 0.8);
            color: #ef4444;
            font-size: 0.65rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            padding: 5px 12px;
            border-radius: 999px;
            border: 1px solid rgba(239, 68, 68, 0.4);
        }

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

        .hero__countdown-item {
            flex: 1;
            min-width: 55px;
            text-align: center;
            background: rgba(37, 99, 235, 0.1);
            border: 1px solid rgba(56, 189, 248, 0.2);
            border-radius: var(--radius-sm);
            padding: 12px 8px;
        }

        .hero__countdown-num {
            font-family: var(--font-mono);
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent-cyan);
            line-height: 1.1;
        }

        .hero__countdown-label {
            font-size: 0.62rem;
            color: var(--text-slate);
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-top: 4px;
        }

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

        .hero__subscribe input {
            flex: 1;
            min-width: 180px;
            background: rgba(3, 7, 18, 0.7);
            border: 1px solid rgba(56, 189, 248, 0.3);
            border-radius: 999px;
            padding: 13px 18px;
            color: var(--text-white);
            font-size: 0.85rem;
            transition: var(--transition);
        }

        .hero__subscribe input::placeholder {
            color: var(--text-slate);
            opacity: 0.7;
        }

        .hero__subscribe input:focus {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 14px rgba(56, 189, 248, 0.2);
            outline: none;
        }

        @media (max-width: 1024px) {
            .hero { min-height: auto; }
            .hero__inner { grid-template-columns: 1fr; gap: var(--spacing-md); }
            .hero__title { font-size: 2rem; }
            .hero__panel { max-width: 100%; }
        }

        @media (max-width: 768px) {
            .hero { padding: var(--spacing-lg) 0; }
            .hero__title { font-size: 1.6rem; }
            .hero__desc { font-size: 0.92rem; }
            .hero__cta { flex-direction: column; }
            .hero__cta .btn { width: 100%; }
            .hero__stats { gap: 18px; }
            .hero__stat-num { font-size: 1.2rem; }
            .hero__panel { padding: 20px; }
        }

        /* =============== STATS STRIP =============== */
        .stats-strip {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
            padding: 28px 0;
        }

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

        .stats-strip__item {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .stats-strip__icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: rgba(37, 99, 235, 0.12);
            border: 1px solid rgba(56, 189, 248, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent-cyan);
            flex-shrink: 0;
        }

        .stats-strip__num {
            font-family: var(--font-mono);
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
        }

        .stats-strip__label {
            font-size: 0.72rem;
            color: var(--text-slate);
            letter-spacing: 0.03em;
        }

        @media (max-width: 1024px) {
            .stats-strip__grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
        }

        @media (max-width: 520px) {
            .stats-strip__grid { grid-template-columns: 1fr; gap: 14px; }
        }

        /* =============== SCENARIO CARDS =============== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .scenario-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            position: relative;
        }

        .scenario-card:hover {
            border-color: var(--border-glow);
            box-shadow: 0 8px 32px rgba(37, 99, 235, 0.25);
            transform: translateY(-4px);
        }

        .scenario-card__img {
            height: 160px;
            object-fit: cover;
            width: 100%;
            border-bottom: 1px solid var(--border-subtle);
        }

        .scenario-card__body {
            padding: 20px 22px;
        }

        .scenario-card__tag {
            display: inline-block;
            background: rgba(56, 189, 248, 0.1);
            color: var(--accent-cyan);
            font-size: 0.65rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            padding: 4px 12px;
            border-radius: 999px;
            border: 1px solid rgba(56, 189, 248, 0.2);
            margin-bottom: 10px;
        }

        .scenario-card__title {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 8px;
            line-height: 1.3;
        }

        .scenario-card__desc {
            font-size: 0.85rem;
            color: var(--text-slate);
            line-height: 1.6;
        }

        @media (max-width: 1024px) {
            .scenario-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
        }

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

        /* =============== PAYMENT / LOCALIZATION =============== */
        .payment-showcase {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            align-items: center;
        }

        .payment-showcase__visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
        }

        .payment-showcase__visual img {
            width: 100%;
            height: 360px;
            object-fit: cover;
        }

        .payment-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
            margin-top: 20px;
        }

        .payment-item {
            display: flex;
            align-items: center;
            gap: 12px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            padding: 14px 16px;
            transition: var(--transition);
        }

        .payment-item:hover {
            border-color: var(--border-glow);
            box-shadow: 0 0 12px rgba(56, 189, 248, 0.12);
        }

        .payment-item__icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(37, 99, 235, 0.12);
            border: 1px solid rgba(56, 189, 248, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--accent-cyan);
            flex-shrink: 0;
        }

        .payment-item__name {
            font-weight: 700;
            font-size: 0.88rem;
            color: var(--text-white);
        }

        .payment-item__desc {
            font-size: 0.72rem;
            color: var(--text-slate);
        }

        @media (max-width: 1024px) {
            .payment-showcase { grid-template-columns: 1fr; }
            .payment-showcase__visual img { height: 280px; }
        }

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

        /* =============== TESTIMONIALS / CASES =============== */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 22px;
        }

        .case-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: var(--transition);
        }

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

        .case-card__header {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 16px;
        }

        .case-card__avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            color: #fff;
            flex-shrink: 0;
        }

        .case-card__user {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-white);
        }

        .case-card__flight {
            font-size: 0.72rem;
            color: var(--accent-cyan);
            font-family: var(--font-mono);
        }

        .case-card__text {
            font-size: 0.88rem;
            color: var(--text-slate);
            line-height: 1.65;
            margin-bottom: 14px;
        }

        .case-card__result {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(16, 185, 129, 0.1);
            border: 1px solid rgba(16, 185, 129, 0.25);
            color: #10b981;
            font-size: 0.78rem;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 999px;
        }

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

        /* =============== NEWS CMS SECTION =============== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 22px;
        }

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

        .news-card:hover {
            border-color: var(--border-glow);
            box-shadow: 0 6px 24px rgba(37, 99, 235, 0.2);
            transform: translateY(-3px);
        }

        .news-card__link {
            display: block;
            padding: 22px;
            color: inherit;
        }

        .news-card__link:hover {
            color: inherit;
        }

        .news-card__title {
            font-size: 1.05rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 10px;
            line-height: 1.4;
        }

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

        .news-card__excerpt {
            font-size: 0.85rem;
            color: var(--text-slate);
            line-height: 1.6;
            margin-bottom: 14px;
        }

        .news-card__meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.72rem;
            color: var(--text-slate);
        }

        .news-card__category {
            background: rgba(56, 189, 248, 0.1);
            color: var(--accent-cyan);
            padding: 4px 12px;
            border-radius: 999px;
            font-weight: 600;
            border: 1px solid rgba(56, 189, 248, 0.2);
        }

        .no-update {
            text-align: center;
            color: var(--text-slate);
            font-size: 0.9rem;
            padding: 30px 20px;
            border: 1px dashed var(--border-subtle);
            border-radius: var(--radius-md);
            grid-column: 1 / -1;
        }

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

        /* =============== SECURITY / TRUST =============== */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .security-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 22px;
            text-align: left;
            transition: var(--transition);
        }

        .security-item:hover {
            border-color: var(--border-glow);
            box-shadow: 0 4px 18px rgba(37, 99, 235, 0.15);
        }

        .security-item__icon {
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: rgba(37, 99, 235, 0.1);
            border: 1px solid rgba(56, 189, 248, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--accent-cyan);
            margin-bottom: 12px;
        }

        .security-item__title {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-white);
            margin-bottom: 6px;
        }

        .security-item__desc {
            font-size: 0.78rem;
            color: var(--text-slate);
            line-height: 1.6;
        }

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

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

        /* =============== STEPS =============== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .step-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 24px;
            position: relative;
            transition: var(--transition);
        }

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

        .step-card__num {
            font-family: var(--font-mono);
            font-size: 2.5rem;
            font-weight: 900;
            color: rgba(56, 189, 248, 0.2);
            position: absolute;
            top: 16px;
            right: 20px;
            line-height: 1;
        }

        .step-card__title {
            font-size: 1.05rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }

        .step-card__desc {
            font-size: 0.85rem;
            color: var(--text-slate);
            line-height: 1.65;
            position: relative;
            z-index: 1;
        }

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

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

        /* =============== FAQ =============== */
        .faq-list {
            max-width: 800px;
        }

        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-item__question {
            width: 100%;
            text-align: left;
            padding: 20px 24px;
            color: var(--text-white);
            font-weight: 700;
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
        }

        .faq-item__question i {
            color: var(--accent-cyan);
            font-size: 0.85rem;
            transition: var(--transition);
            flex-shrink: 0;
        }

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

        .faq-item__answer {
            display: none;
            padding: 0 24px 20px;
            color: var(--text-slate);
            font-size: 0.88rem;
            line-height: 1.7;
        }

        .faq-item.is-open .faq-item__answer {
            display: block;
        }

        /* =============== FINAL CTA =============== */
        .cta-final {
            background: url('/assets/images/d000fde751696f94.jpg') center/cover no-repeat;
            position: relative;
            padding: var(--spacing-xl) 0;
            text-align: center;
        }

        .cta-final::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(3, 7, 18, 0.85) 0%, rgba(8, 18, 41, 0.75) 100%);
            z-index: 1;
        }

        .cta-final__inner {
            position: relative;
            z-index: 2;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-final__title {
            font-size: 2rem;
            font-weight: 900;
            color: var(--text-white);
            margin-bottom: 16px;
            line-height: 1.25;
        }

        .cta-final__desc {
            font-size: 1rem;
            color: var(--text-slate);
            line-height: 1.65;
            margin-bottom: 26px;
        }

        .cta-final__buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        @media (max-width: 768px) {
            .cta-final__title { font-size: 1.5rem; }
            .cta-final__buttons { flex-direction: column; }
            .cta-final__buttons .btn { width: 100%; }
        }

        /* =============== FOOTER =============== */
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid var(--border-subtle);
            padding: var(--spacing-lg) 0 20px;
            position: relative;
        }

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

        .footer__brand {
            font-size: 0.9rem;
            line-height: 1.6;
            color: var(--text-slate);
            max-width: 300px;
        }

        .footer__brand-name {
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text-white);
            margin-bottom: 10px;
            display: block;
        }

        .footer__col-title {
            font-weight: 700;
            font-size: 0.8rem;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            color: var(--text-white);
            margin-bottom: 14px;
        }

        .footer__link {
            display: block;
            color: var(--text-slate);
            font-size: 0.82rem;
            padding: 5px 0;
            transition: var(--transition);
        }

        .footer__link:hover {
            color: var(--accent-cyan);
            padding-left: 4px;
        }

        .footer__bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.72rem;
            color: var(--text-slate);
        }

        .footer__badge-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 12px;
        }

        .footer__badge {
            background: rgba(56, 189, 248, 0.08);
            border: 1px solid rgba(56, 189, 248, 0.2);
            border-radius: 8px;
            padding: 6px 12px;
            font-size: 0.68rem;
            font-weight: 600;
            color: var(--accent-cyan);
        }

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

        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; gap: 22px; }
            .footer__bottom { flex-direction: column; text-align: center; }
        }

        /* =============== FAB =============== */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 800;
            width: 56px;
            height: 56px;
            border-radius: 18px;
            background: rgba(3, 7, 18, 0.8);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(3,7,18,0.8), rgba(3,7,18,0.8)), linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.4rem;
            box-shadow: 0 0 20px rgba(56, 189, 248, 0.45);
            cursor: pointer;
            transition: var(--transition);
            opacity: 0.75;
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 28px rgba(56, 189, 248, 0.7);
        }

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

        .fab__badge {
            position: absolute;
            top: -6px;
            right: -6px;
            width: 18px;
            height: 18px;
            background: #ef4444;
            border-radius: 50%;
            border: 2px solid #fff;
            animation: pulse-icon 1.5s ease-in-out infinite;
        }

        @media (max-width: 520px) {
            .fab { width: 50px; height: 50px; bottom: 88px; left: 12px; }
        }

        /* =============== BOTTOM FIXED CTA BAR =============== */
        .cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 850;
            background: rgba(3, 7, 18, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border-glow);
            padding: 12px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            box-shadow: 0 -8px 30px rgba(3, 7, 18, 0.6);
        }

        .cta-bar__msg {
            font-size: 0.82rem;
            color: var(--text-slate);
            flex-shrink: 0;
        }

        .cta-bar__msg strong {
            color: var(--accent-cyan);
            font-weight: 700;
        }

        .cta-bar__actions {
            display: flex;
            gap: 10px;
            flex-shrink: 0;
        }

        @media (max-width: 768px) {
            .cta-bar { flex-direction: column; gap: 8px; padding: 10px 14px; }
            .cta-bar__msg { text-align: center; }
            .cta-bar__actions { width: 100%; }
            .cta-bar__actions .btn { flex: 1; }
            body { padding-bottom: 100px; }
        }

        @media (min-width: 769px) {
            body { padding-bottom: 60px; }
        }

        /* =============== LIST STYLES =============== */
        .check-list {
            margin-top: 16px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .check-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text-slate);
            font-size: 0.88rem;
            line-height: 1.55;
        }

        .check-list li i {
            color: #10b981;
            margin-top: 4px;
            flex-shrink: 0;
        }

        /* =============== DIVIDER =============== */
        .divider-glow {
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--border-glow), transparent);
            margin: var(--spacing-md) 0;
        }

        /* =============== RESPONSIVE UTILITIES =============== */
        .text-left { text-align: left; }
        .text-center { text-align: center; }

        @media (max-width: 768px) {
            .text-left-mobile { text-align: left; }
        }

/* roulang page: category1 */
:root {
        --bg-primary: #030712;
        --bg-secondary: #081229;
        --bg-tertiary: #0c1a35;
        --accent-blue: #2563EB;
        --accent-cyan: #38BDF8;
        --accent-glow: rgba(37, 99, 235, 0.25);
        --text-white: #F8FAFC;
        --text-slate: #94A3B8;
        --text-holo: #60A5FA;
        --border-subtle: rgba(56, 189, 248, 0.15);
        --border-glow: rgba(56, 189, 248, 0.4);
        --radius-sm: 10px;
        --radius-md: 18px;
        --radius-lg: 28px;
        --radius-xl: 38px;
        --shadow-card: 0 8px 30px rgba(3, 7, 18, 0.6);
        --shadow-glow: 0 0 22px rgba(56, 189, 248, 0.16);
        --spacing-xs: 8px;
        --spacing-sm: 16px;
        --spacing-md: 28px;
        --spacing-lg: 48px;
        --spacing-xl: 72px;
        --spacing-2xl: 100px;
        --font-primary: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
        --font-mono: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;
        --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        --max-width: 1200px;
    }

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

    body {
        font-family: var(--font-primary);
        background: var(--bg-primary);
        color: var(--text-white);
        line-height: 1.65;
        font-size: 16px;
        min-height: 100vh;
        overflow-x: hidden;
        letter-spacing: 0.01em;
        margin: 0;
        padding: 0;
    }

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

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

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

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

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

    .container {
        max-width: var(--max-width);
        margin: 0 auto;
        padding: 0 24px;
    }

    .section {
        padding: var(--spacing-xl) 0;
        position: relative;
    }

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

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

    .section--gradient-border {
        border-top: 1px solid var(--border-subtle);
        border-bottom: 1px solid var(--border-subtle);
    }

    .section-header {
        margin-bottom: var(--spacing-lg);
        max-width: 820px;
    }

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

    .section-header--center {
        text-align: center;
        margin-left: auto;
        margin-right: auto;
    }

    .section-tag {
        display: inline-block;
        font-size: 0.72rem;
        font-weight: 700;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        color: var(--accent-cyan);
        background: rgba(56, 189, 248, 0.08);
        border: 1px solid rgba(56, 189, 248, 0.25);
        border-radius: 999px;
        padding: 6px 16px;
        margin-bottom: 14px;
    }

    .section-heading {
        font-size: 2rem;
        font-weight: 800;
        line-height: 1.25;
        color: var(--text-white);
        margin-bottom: 16px;
        letter-spacing: -0.01em;
    }

    .section-desc {
        font-size: 1rem;
        line-height: 1.7;
        color: var(--text-slate);
        max-width: 720px;
    }

    .section-header--center .section-desc {
        margin-left: auto;
        margin-right: auto;
    }

    /* Buttons */
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        font-weight: 700;
        font-size: 0.9rem;
        letter-spacing: 0.02em;
        border-radius: 999px;
        padding: 14px 28px;
        transition: var(--transition);
        position: relative;
        overflow: hidden;
        white-space: nowrap;
        line-height: 1.2;
        text-align: center;
        text-decoration: none;
    }

    .btn--primary {
        background: linear-gradient(135deg, var(--accent-blue) 0%, #1d4ed8 100%);
        color: #fff;
        box-shadow: 0 4px 20px rgba(37, 99, 235, 0.35);
        border: 1px solid rgba(56, 189, 248, 0.3);
    }

    .btn--primary:hover,
    .btn--primary:focus {
        background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
        color: #fff;
        box-shadow: 0 6px 30px rgba(37, 99, 235, 0.55);
        transform: translateY(-2px);
    }

    .btn--primary:active {
        transform: translateY(0);
        box-shadow: 0 2px 12px rgba(37, 99, 235, 0.3);
    }

    .btn--ghost {
        background: transparent;
        color: var(--text-white);
        border: 1px solid rgba(56, 189, 248, 0.4);
        box-shadow: none;
    }

    .btn--ghost:hover,
    .btn--ghost:focus {
        border-color: var(--accent-cyan);
        color: var(--accent-cyan);
        box-shadow: var(--shadow-glow);
    }

    .btn--sm {
        padding: 10px 20px;
        font-size: 0.8rem;
    }

    .btn--lg {
        padding: 16px 36px;
        font-size: 1rem;
    }

    /* Navigation */
    .navbar {
        position: sticky;
        top: 0;
        z-index: 50;
        background: rgba(3, 7, 18, 0.92);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--border-subtle);
        padding: 0;
        min-height: 70px;
        display: flex;
        align-items: center;
    }

    .navbar__brand {
        display: flex;
        align-items: center;
        gap: 10px;
        min-height: 70px;
        flex-shrink: 0;
    }

    .navbar__brand a {
        display: flex;
        align-items: center;
        gap: 10px;
        color: var(--text-white);
        font-weight: 700;
        font-size: 0.95rem;
        letter-spacing: 0.01em;
        line-height: 1.3;
    }

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

    .navbar__brand-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        flex-shrink: 0;
        border-radius: 12px;
        background: linear-gradient(135deg, rgba(37, 99, 235, 0.3), rgba(56, 189, 248, 0.1));
        border: 1px solid rgba(56, 189, 248, 0.3);
        color: var(--accent-cyan);
        font-size: 1.1rem;
    }

    .navbar__links {
        display: flex;
        align-items: center;
        gap: 6px;
        margin-left: auto;
        margin-right: 18px;
    }

    .navbar__link {
        color: var(--text-slate);
        font-size: 0.85rem;
        font-weight: 600;
        letter-spacing: 0.01em;
        padding: 8px 16px;
        border-radius: 999px;
        transition: var(--transition);
        white-space: nowrap;
    }

    .navbar__link:hover {
        color: var(--text-white);
        background: rgba(56, 189, 248, 0.08);
    }

    .navbar__link--active {
        color: var(--accent-cyan);
        background: rgba(37, 99, 235, 0.15);
        border: 1px solid rgba(56, 189, 248, 0.3);
    }

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

    .navbar__toggle {
        display: none;
        width: 44px;
        height: 44px;
        align-items: center;
        justify-content: center;
        border-radius: 10px;
        background: rgba(56, 189, 248, 0.08);
        border: 1px solid rgba(56, 189, 248, 0.2);
        color: var(--text-white);
        font-size: 1.2rem;
        transition: var(--transition);
        outline: none;
        cursor: pointer;
    }

    .navbar__toggle:hover,
    .navbar__toggle:focus {
        background: rgba(56, 189, 248, 0.15);
        border-color: var(--accent-cyan);
    }

    /* Hero */
    .hero {
        position: relative;
        padding: var(--spacing-2xl) 0 var(--spacing-xl);
        background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
        overflow: hidden;
    }

    .hero__bg {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-size: cover;
        background-position: center;
        opacity: 0.18;
        pointer-events: none;
    }

    .hero__content {
        position: relative;
        z-index: 2;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 48px;
        align-items: center;
    }

    .hero__badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 0.75rem;
        font-weight: 700;
        letter-spacing: 0.06em;
        text-transform: uppercase;
        color: var(--text-holo);
        margin-bottom: 18px;
    }

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

    .hero__title {
        font-size: 2.8rem;
        font-weight: 900;
        line-height: 1.15;
        letter-spacing: -0.02em;
        color: var(--text-white);
        margin-bottom: 18px;
    }

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

    .hero__desc {
        font-size: 1.05rem;
        line-height: 1.7;
        color: var(--text-slate);
        margin-bottom: 28px;
        max-width: 520px;
    }

    .hero__actions {
        display: flex;
        flex-wrap: wrap;
        gap: 14px;
        margin-bottom: 32px;
    }

    .hero__panel {
        background: rgba(8, 18, 41, 0.75);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-lg);
        padding: 32px;
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
    }

    .hero__panel-title {
        font-size: 0.85rem;
        font-weight: 700;
        letter-spacing: 0.04em;
        text-transform: uppercase;
        color: var(--text-holo);
        margin-bottom: 18px;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .hero__version-bar {
        display: flex;
        gap: 0;
        list-style: none;
        margin: 0;
        padding: 0;
    }

    .hero__version-item {
        flex: 1;
        text-align: center;
        position: relative;
    }

    .hero__version-item:not(:last-child)::after {
        content: '';
        position: absolute;
        top: 8px;
        right: -50%;
        width: 100%;
        height: 2px;
        background: rgba(56, 189, 248, 0.2);
        z-index: 0;
    }

    .hero__version-dot {
        display: inline-block;
        width: 18px;
        height: 18px;
        border-radius: 50%;
        background: var(--bg-tertiary);
        border: 2px solid rgba(56, 189, 248, 0.4);
        margin-bottom: 8px;
        position: relative;
        z-index: 1;
        transition: var(--transition);
    }

    .hero__version-item--active .hero__version-dot {
        background: var(--accent-blue);
        border-color: var(--accent-cyan);
        box-shadow: 0 0 18px var(--accent-glow);
    }

    .hero__version-label {
        display: block;
        font-size: 0.72rem;
        font-weight: 600;
        color: var(--text-slate);
        letter-spacing: 0.02em;
    }

    .hero__version-item--active .hero__version-label {
        color: var(--text-white);
    }

    .hero__subscribe {
        margin-top: 22px;
        display: flex;
        gap: 10px;
        flex-wrap: wrap;
    }

    .hero__subscribe input {
        flex: 1;
        min-width: 200px;
        background: rgba(3, 7, 18, 0.7);
        border: 1px solid rgba(56, 189, 248, 0.25);
        border-radius: 999px;
        padding: 12px 20px;
        color: var(--text-white);
        font-size: 0.9rem;
        outline: none;
        transition: var(--transition);
    }

    .hero__subscribe input:focus {
        border-color: var(--accent-cyan);
        box-shadow: var(--shadow-glow);
    }

    .hero__subscribe input::placeholder {
        color: var(--text-slate);
        opacity: 0.7;
    }

    /* Stats */
    .stats-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 18px;
    }

    .stat-item {
        background: var(--bg-tertiary);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-md);
        padding: 22px 18px;
        text-align: left;
        transition: var(--transition);
    }

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

    .stat-item__value {
        font-size: 1.8rem;
        font-weight: 800;
        letter-spacing: -0.01em;
        color: var(--text-white);
        margin-bottom: 4px;
        line-height: 1.2;
    }

    .stat-item__label {
        font-size: 0.78rem;
        color: var(--text-slate);
        font-weight: 500;
        letter-spacing: 0.02em;
        text-transform: uppercase;
    }

    /* Cards */
    .card-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 22px;
    }

    .card {
        background: var(--bg-tertiary);
        border: 1px solid rgba(56, 189, 248, 0.12);
        border-radius: var(--radius-md);
        padding: 26px;
        transition: var(--transition);
        position: relative;
    }

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

    .card__icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 48px;
        height: 48px;
        border-radius: 14px;
        background: rgba(37, 99, 235, 0.15);
        border: 1px solid rgba(56, 189, 248, 0.25);
        color: var(--accent-cyan);
        font-size: 1.2rem;
        margin-bottom: 16px;
    }

    .card__title {
        font-size: 1.05rem;
        font-weight: 700;
        color: var(--text-white);
        margin-bottom: 10px;
        line-height: 1.35;
    }

    .card__text {
        font-size: 0.88rem;
        line-height: 1.65;
        color: var(--text-slate);
        margin-bottom: 0;
    }

    /* Process / Timeline */
    .process-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
        position: relative;
    }

    .process-step {
        text-align: left;
        background: var(--bg-tertiary);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-md);
        padding: 22px 20px;
        transition: var(--transition);
        position: relative;
    }

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

    .process-step__num {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--accent-blue), #1d4ed8);
        color: #fff;
        font-weight: 800;
        font-size: 0.9rem;
        margin-bottom: 14px;
        border: 1px solid rgba(56, 189, 248, 0.4);
    }

    .process-step__title {
        font-size: 0.95rem;
        font-weight: 700;
        color: var(--text-white);
        margin-bottom: 8px;
    }

    .process-step__text {
        font-size: 0.82rem;
        line-height: 1.6;
        color: var(--text-slate);
    }

    /* Content list */
    .post-list {
        display: grid;
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .post-item {
        display: grid;
        grid-template-columns: auto 1fr auto;
        gap: 16px;
        align-items: center;
        background: var(--bg-tertiary);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-sm);
        padding: 16px 20px;
        transition: var(--transition);
    }

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

    .post-item__thumb {
        width: 56px;
        height: 56px;
        border-radius: 10px;
        object-fit: cover;
        flex-shrink: 0;
        border: 1px solid rgba(56, 189, 248, 0.2);
    }

    .post-item__body {
        min-width: 0;
    }

    .post-item__title {
        font-size: 0.92rem;
        font-weight: 600;
        color: var(--text-white);
        margin-bottom: 4px;
        line-height: 1.35;
        display: -webkit-box;
        -webkit-line-clamp: 1;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .post-item__title a {
        color: inherit;
    }

    .post-item__title a:hover {
        color: var(--accent-cyan);
    }

    .post-item__meta {
        font-size: 0.75rem;
        color: var(--text-slate);
        display: flex;
        gap: 14px;
        flex-wrap: wrap;
    }

    .post-item__link {
        flex-shrink: 0;
        color: var(--accent-cyan);
        font-size: 0.8rem;
        font-weight: 600;
        white-space: nowrap;
    }

    .post-item__link:hover {
        color: var(--text-white);
    }

    /* FAQ */
    .faq-list {
        max-width: 780px;
    }

    .faq-item {
        background: var(--bg-tertiary);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-sm);
        margin-bottom: 12px;
        overflow: hidden;
        transition: var(--transition);
    }

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

    .faq-item__btn {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        width: 100%;
        padding: 18px 22px;
        text-align: left;
        font-size: 0.92rem;
        font-weight: 600;
        color: var(--text-white);
        background: transparent;
        border: none;
        cursor: pointer;
        transition: var(--transition);
        outline: none;
    }

    .faq-item__btn:hover,
    .faq-item__btn:focus {
        color: var(--accent-cyan);
    }

    .faq-item__btn i {
        transition: var(--transition);
        font-size: 0.85rem;
        color: var(--text-slate);
        flex-shrink: 0;
    }

    .faq-item__answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease;
        padding: 0 22px;
    }

    .faq-item__answer-inner {
        padding-bottom: 18px;
        font-size: 0.85rem;
        line-height: 1.7;
        color: var(--text-slate);
    }

    .faq-item.is-open .faq-item__btn i {
        transform: rotate(180deg);
        color: var(--accent-cyan);
    }

    .faq-item.is-open .faq-item__answer {
        max-height: 400px;
    }

    /* CTA */
    .cta-band {
        background: linear-gradient(135deg, var(--bg-tertiary) 0%, #0e2150 100%);
        border: 1px solid var(--border-glow);
        border-radius: var(--radius-lg);
        padding: 40px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 24px;
        flex-wrap: wrap;
    }

    .cta-band__text h3 {
        font-size: 1.4rem;
        font-weight: 800;
        margin-bottom: 8px;
        color: var(--text-white);
    }

    .cta-band__text p {
        font-size: 0.9rem;
        color: var(--text-slate);
        margin-bottom: 0;
    }

    .cta-band__actions {
        display: flex;
        gap: 12px;
        flex-wrap: wrap;
    }

    /* Footer */
    .site-footer {
        background: var(--bg-primary);
        border-top: 1px solid rgba(56, 189, 248, 0.12);
        padding: var(--spacing-xl) 0 var(--spacing-md);
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1fr 1fr;
        gap: 36px;
        margin-bottom: 40px;
    }

    .footer__brand-name {
        display: block;
        font-size: 1rem;
        font-weight: 700;
        color: var(--text-white);
        margin-bottom: 12px;
        line-height: 1.4;
    }

    .footer__brand {
        font-size: 0.82rem;
        line-height: 1.7;
        color: var(--text-slate);
        margin-bottom: 16px;
    }

    .footer__badge-row {
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
    }

    .footer__badge {
        display: inline-block;
        font-size: 0.68rem;
        font-weight: 700;
        letter-spacing: 0.04em;
        text-transform: uppercase;
        color: var(--accent-cyan);
        background: rgba(56, 189, 248, 0.08);
        border: 1px solid rgba(56, 189, 248, 0.22);
        border-radius: 6px;
        padding: 5px 10px;
    }

    .footer__col-title {
        font-size: 0.85rem;
        font-weight: 700;
        color: var(--text-white);
        letter-spacing: 0.03em;
        text-transform: uppercase;
        margin-bottom: 14px;
    }

    .footer__link {
        display: block;
        font-size: 0.82rem;
        color: var(--text-slate);
        padding: 5px 0;
        transition: var(--transition);
    }

    .footer__link:hover {
        color: var(--accent-cyan);
        padding-left: 4px;
    }

    .footer__bottom {
        border-top: 1px solid rgba(56, 189, 248, 0.1);
        padding-top: 22px;
        font-size: 0.78rem;
        color: var(--text-slate);
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        justify-content: space-between;
        align-items: center;
    }

    /* FAB */
    .fab {
        position: fixed;
        left: 16px;
        bottom: 96px;
        z-index: 50;
        width: 52px;
        height: 52px;
        border-radius: 16px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(7, 7, 13, 0.82);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border: 2px solid transparent;
        background-clip: padding-box;
        box-shadow: 0 0 22px rgba(6, 182, 212, 0.4);
        color: var(--accent-cyan);
        font-size: 1.2rem;
        cursor: pointer;
        transition: var(--transition);
        opacity: 0.8;
        animation: fabPulse 2.4s ease-in-out infinite;
        text-decoration: none;
        position: fixed;
        left: 16px;
        bottom: 96px;
        z-index: 50;
    }

    @keyframes fabPulse {
        0%, 100% {
            box-shadow: 0 0 18px rgba(6, 182, 212, 0.35);
        }
        50% {
            box-shadow: 0 0 32px rgba(6, 182, 212, 0.6);
        }
    }

    .fab:hover {
        opacity: 1;
        transform: scale(1.08);
        color: #fff;
        border-color: var(--accent-cyan);
    }

    .fab__badge {
        position: absolute;
        top: -4px;
        right: -4px;
        width: 14px;
        height: 14px;
        border-radius: 50%;
        background: #EF4444;
        border: 2px solid #fff;
        animation: blink 1s infinite;
    }

    @keyframes blink {
        0%, 100% { opacity: 1; }
        50% { opacity: 0.35; }
    }

    /* Responsive */
    @media (max-width: 1024px) {
        .hero__content {
            grid-template-columns: 1fr;
            gap: 32px;
        }

        .hero__title {
            font-size: 2.2rem;
        }

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

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

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

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

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

        .navbar__links {
            display: none;
            position: absolute;
            top: 70px;
            left: 0;
            right: 0;
            background: rgba(3, 7, 18, 0.97);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            flex-direction: column;
            align-items: stretch;
            padding: 18px 20px;
            gap: 4px;
            border-bottom: 1px solid var(--border-subtle);
            margin: 0;
        }

        .navbar__links.is-open {
            display: flex;
        }

        .navbar__link {
            padding: 12px 16px;
            font-size: 0.9rem;
        }

        .navbar__toggle {
            display: flex;
        }

        .navbar__auth {
            margin-left: auto;
        }

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

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

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

        .hero__title {
            font-size: 1.8rem;
        }

        .hero__panel {
            padding: 22px;
        }

        .stats-grid {
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }

        .stat-item__value {
            font-size: 1.4rem;
        }

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

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

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

        .cta-band {
            padding: 28px 22px;
            flex-direction: column;
            text-align: left;
        }

        .cta-band__actions {
            width: 100%;
        }

        .post-item {
            grid-template-columns: auto 1fr;
        }

        .post-item__link {
            grid-column: 1 / -1;
            padding-left: 72px;
        }

        .fab {
            width: 48px;
            height: 48px;
            left: 12px;
            bottom: 84px;
            font-size: 1rem;
        }
    }

    @media (max-width: 520px) {
        .container {
            padding: 0 16px;
        }

        .hero__title {
            font-size: 1.5rem;
        }

        .hero__desc {
            font-size: 0.92rem;
        }

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

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

        .navbar__brand a {
            font-size: 0.8rem;
        }

        .navbar__brand-icon {
            width: 34px;
            height: 34px;
            font-size: 0.9rem;
        }

        .btn {
            padding: 12px 20px;
            font-size: 0.82rem;
        }

        .btn--lg {
            padding: 14px 24px;
            font-size: 0.9rem;
        }

        .hero__version-bar {
            flex-wrap: wrap;
            gap: 10px;
        }

        .hero__version-item:not(:last-child)::after {
            display: none;
        }

        .cta-band__text h3 {
            font-size: 1.15rem;
        }
    }

/* roulang page: article */
:root {
            --bg-primary: #030712;
            --bg-secondary: #081229;
            --bg-tertiary: #0c1a35;
            --accent-blue: #2563EB;
            --accent-cyan: #38BDF8;
            --accent-glow: rgba(37, 99, 235, 0.25);
            --text-white: #F8FAFC;
            --text-slate: #94A3B8;
            --text-holo: #60A5FA;
            --border-subtle: rgba(56, 189, 248, 0.15);
            --border-glow: rgba(56, 189, 248, 0.4);
            --radius-sm: 10px;
            --radius-md: 18px;
            --radius-lg: 28px;
            --radius-xl: 38px;
            --shadow-card: 0 8px 30px rgba(3, 7, 18, 0.6);
            --shadow-glow: 0 0 22px rgba(56, 189, 248, 0.16);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 28px;
            --spacing-lg: 48px;
            --spacing-xl: 72px;
            --spacing-2xl: 100px;
            --font-primary: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
        }

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

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

        body {
            font-family: var(--font-primary);
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.6;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

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

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

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

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

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

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--spacing-xl) 0;
            position: relative;
        }

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

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

        .section--gradient-border {
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .section-header {
            margin-bottom: var(--spacing-lg);
            max-width: 800px;
        }

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

        .section-header--center {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            background: rgba(56, 189, 248, 0.08);
            border: 1px solid rgba(56, 189, 248, 0.25);
            border-radius: 999px;
            padding: 6px 16px;
            margin-bottom: 14px;
        }

        .section-heading {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 1rem;
            line-height: 1.65;
            color: var(--text-slate);
            max-width: 720px;
        }

        .section-header--center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-weight: 700;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            border-radius: 999px;
            padding: 14px 28px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            white-space: nowrap;
            line-height: 1.2;
            text-align: center;
            text-decoration: none;
        }

        .btn--primary {
            background: linear-gradient(135deg, var(--accent-blue) 0%, #1d4ed8 100%);
            color: #fff;
            box-shadow: 0 4px 20px rgba(37, 99, 235, 0.35);
            border: 1px solid rgba(56, 189, 248, 0.3);
        }

        .btn--primary:hover,
        .btn--primary:focus {
            background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
            color: #fff;
            box-shadow: 0 6px 30px rgba(37, 99, 235, 0.55);
            transform: translateY(-2px);
        }

        .btn--primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 12px rgba(37, 99, 235, 0.3);
        }

        .btn--ghost {
            background: transparent;
            color: var(--text-white);
            border: 1px solid rgba(56, 189, 248, 0.4);
            box-shadow: none;
        }

        .btn--ghost:hover,
        .btn--ghost:focus {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            box-shadow: 0 0 18px rgba(56, 189, 248, 0.2);
        }

        .btn--sm {
            padding: 10px 20px;
            font-size: 0.8rem;
        }

        .btn--lg {
            padding: 18px 38px;
            font-size: 1rem;
        }

        /* Navbar */
        .navbar {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(3, 7, 18, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 14px 0;
        }

        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }

        .navbar__brand a {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 800;
            font-size: 1rem;
            color: var(--text-white);
            letter-spacing: -0.01em;
            line-height: 1.3;
        }

        .navbar__brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--accent-blue), #1e40af);
            border-radius: 12px;
            color: #fff;
            font-size: 1.2rem;
            flex-shrink: 0;
            box-shadow: 0 0 16px rgba(37, 99, 235, 0.35);
        }

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

        .navbar__link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.86rem;
            color: var(--text-slate);
            padding: 8px 16px;
            border-radius: 999px;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .navbar__link:hover {
            color: var(--text-white);
            background: rgba(56, 189, 248, 0.06);
            border-color: var(--border-subtle);
        }

        .navbar__link--active {
            color: var(--accent-cyan);
            background: rgba(56, 189, 248, 0.08);
            border-color: rgba(56, 189, 248, 0.25);
        }

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

        .navbar__toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--text-white);
            padding: 8px;
            border-radius: 8px;
            border: 1px solid var(--border-subtle);
            background: rgba(56, 189, 248, 0.05);
            transition: var(--transition);
        }

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

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            font-size: 0.85rem;
            color: var(--text-slate);
            padding: 18px 0;
            margin-bottom: 10px;
        }

        .breadcrumb a {
            color: var(--text-holo);
            font-weight: 600;
        }

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

        .breadcrumb__sep {
            color: var(--text-slate);
            opacity: 0.5;
        }

        .breadcrumb__current {
            color: var(--text-slate);
            font-weight: 500;
            max-width: 300px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /* Article header */
        .article-header {
            padding: 36px 0 20px;
            border-bottom: 1px solid var(--border-subtle);
            margin-bottom: 40px;
        }

        .article-header__meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            margin-bottom: 18px;
            font-size: 0.85rem;
            color: var(--text-slate);
        }

        .article-header__badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            background: rgba(56, 189, 248, 0.08);
            border: 1px solid rgba(56, 189, 248, 0.25);
            color: var(--accent-cyan);
        }

        .article-header__date {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-header__title {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-white);
            margin-bottom: 20px;
            letter-spacing: -0.01em;
        }

        .article-header__cover {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-top: 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-subtle);
        }

        .article-header__cover img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 21 / 9;
        }

        /* Article body */
        .article-body {
            max-width: 820px;
            margin: 0 auto;
            font-size: 1.05rem;
            line-height: 1.7;
            color: #D1D5DB;
        }

        .article-body h1,
        .article-body h2,
        .article-body h3,
        .article-body h4 {
            color: var(--text-white);
            font-weight: 700;
            line-height: 1.3;
            margin: 28px 0 14px;
        }

        .article-body h1 {
            font-size: 1.8rem;
        }

        .article-body h2 {
            font-size: 1.45rem;
        }

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

        .article-body p {
            margin-bottom: 18px;
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 18px 24px;
        }

        .article-body ul li,
        .article-body ol li {
            margin-bottom: 8px;
        }

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

        .article-body blockquote {
            border-left: 3px solid var(--accent-cyan);
            padding: 16px 24px;
            margin: 24px 0;
            background: rgba(56, 189, 248, 0.05);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-slate);
            font-style: italic;
        }

        .article-body a {
            color: var(--accent-cyan);
            font-weight: 600;
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        /* Article not found */
        .article-not-found {
            text-align: center;
            padding: 60px 24px;
            max-width: 600px;
            margin: 0 auto;
        }

        .article-not-found i {
            font-size: 3rem;
            color: var(--text-slate);
            margin-bottom: 20px;
            display: block;
        }

        .article-not-found h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 12px;
        }

        .article-not-found p {
            color: var(--text-slate);
            margin-bottom: 24px;
        }

        /* Inline CTA */
        .article-cta-inline {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-md);
            padding: 32px;
            margin: 40px auto;
            max-width: 820px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            box-shadow: var(--shadow-glow);
        }

        .article-cta-inline__text {
            flex: 1;
            min-width: 220px;
        }

        .article-cta-inline__title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 6px;
        }

        .article-cta-inline__desc {
            font-size: 0.9rem;
            color: var(--text-slate);
            line-height: 1.5;
        }

        /* Tips grid */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
            margin-top: 28px;
        }

        .tip-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

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

        .tip-card__icon {
            width: 48px;
            height: 48px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: rgba(37, 99, 235, 0.15);
            color: var(--accent-cyan);
            font-size: 1.3rem;
            margin-bottom: 16px;
        }

        .tip-card__title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
        }

        .tip-card__desc {
            font-size: 0.9rem;
            color: var(--text-slate);
            line-height: 1.6;
        }

        /* Stats bar */
        .stats-bar {
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(56, 189, 248, 0.05) 100%);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 24px;
            margin-top: 28px;
        }

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

        .stat-item__number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-cyan);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        .stat-item__label {
            font-size: 0.85rem;
            color: var(--text-slate);
            margin-top: 4px;
        }

        /* Reviews */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
            margin-top: 28px;
        }

        .review-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: var(--transition);
        }

        .review-card:hover {
            border-color: var(--border-glow);
        }

        .review-card__stars {
            color: #FACC15;
            font-size: 0.85rem;
            margin-bottom: 12px;
            letter-spacing: 2px;
        }

        .review-card__text {
            font-size: 0.95rem;
            color: #D1D5DB;
            line-height: 1.6;
            margin-bottom: 16px;
            font-style: italic;
        }

        .review-card__author {
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .review-card__author span {
            font-weight: 400;
            color: var(--text-slate);
        }

        /* FAQ */
        .faq-list {
            max-width: 820px;
            margin: 28px auto 0;
        }

        .faq-item {
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--bg-secondary);
            transition: var(--transition);
        }

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

        .faq-item summary {
            padding: 18px 22px;
            font-weight: 700;
            font-size: 0.98rem;
            color: var(--text-white);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            user-select: none;
        }

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

        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.8rem;
            color: var(--accent-cyan);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }

        .faq-item__answer {
            padding: 0 22px 20px;
            font-size: 0.92rem;
            color: var(--text-slate);
            line-height: 1.65;
        }

        /* Related topics */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
            margin-top: 28px;
        }

        .related-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            background: var(--bg-secondary);
            transition: var(--transition);
            min-height: 160px;
            display: flex;
            align-items: flex-end;
        }

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

        .related-card__img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.35;
            transition: var(--transition);
        }

        .related-card:hover .related-card__img {
            opacity: 0.5;
            transform: scale(1.03);
        }

        .related-card__overlay {
            position: relative;
            z-index: 2;
            padding: 20px 22px;
            width: 100%;
            background: linear-gradient(to top, rgba(3, 7, 18, 0.88) 30%, transparent 100%);
        }

        .related-card__title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 4px;
        }

        .related-card__desc {
            font-size: 0.82rem;
            color: var(--text-slate);
            line-height: 1.4;
        }

        /* CTA Section */
        .cta-section {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 48px 36px;
            margin-top: 40px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(56, 189, 248, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section__text {
            flex: 1;
            min-width: 260px;
            position: relative;
            z-index: 2;
        }

        .cta-section__title {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 8px;
            line-height: 1.3;
        }

        .cta-section__desc {
            font-size: 0.95rem;
            color: var(--text-slate);
            line-height: 1.6;
        }

        .cta-section__actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            position: relative;
            z-index: 2;
        }

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

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 36px;
            margin-bottom: 40px;
        }

        .footer__brand-name {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.4;
            display: block;
            margin-bottom: 12px;
        }

        .footer__brand {
            font-size: 0.88rem;
            color: var(--text-slate);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .footer__badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer__badge {
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            padding: 6px 12px;
            border-radius: 999px;
            background: rgba(56, 189, 248, 0.08);
            border: 1px solid rgba(56, 189, 248, 0.2);
            color: var(--accent-cyan);
        }

        .footer__col-title {
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .footer__link {
            display: block;
            font-size: 0.88rem;
            color: var(--text-slate);
            margin-bottom: 10px;
            transition: var(--transition);
        }

        .footer__link:hover {
            color: var(--accent-cyan);
            transform: translateX(3px);
        }

        .footer__bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-slate);
        }

        /* FAB */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 18px;
            border-radius: 999px;
            background: rgba(7, 7, 13, 0.82);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 2px solid transparent;
            background-clip: padding-box;
            box-shadow: 0 0 20px rgba(6, 182, 212, 0.45);
            color: var(--text-white);
            text-decoration: none;
            font-weight: 700;
            font-size: 0.82rem;
            transition: var(--transition);
            opacity: 0.75;
            animation: fabPulse 3s ease-in-out infinite;
            min-height: 56px;
        }

        .fab::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 999px;
            z-index: -1;
            background: linear-gradient(135deg, #A3E635 0%, #06B6D4 50%, #F43F5E 100%);
            animation: fabBorderGlow 4s linear infinite;
        }

        .fab:hover,
        .fab:focus {
            opacity: 1;
            transform: translateY(-3px);
            box-shadow: 0 0 35px rgba(6, 182, 212, 0.65);
            color: #fff;
        }

        .fab:active {
            transform: translateY(0) scale(0.97);
        }

        .fab__icon {
            font-size: 1.3rem;
            color: var(--accent-cyan);
            animation: fabFlicker 2.5s ease-in-out infinite;
        }

        .fab__notification {
            font-size: 0.62rem;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            padding: 3px 8px;
            border-radius: 999px;
            background: #F43F5E;
            color: #fff;
            animation: notificationBlink 1.4s ease-in-out infinite;
        }

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

        @keyframes fabBorderGlow {
            0% { filter: hue-rotate(0deg); }
            50% { filter: hue-rotate(40deg); }
            100% { filter: hue-rotate(0deg); }
        }

        @keyframes fabFlicker {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.6; }
        }

        @keyframes notificationBlink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.45; }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .navbar .container {
                flex-wrap: wrap;
            }

            .navbar__links {
                order: 3;
                width: 100%;
                justify-content: flex-start;
                padding-top: 10px;
                gap: 4px;
            }

            .article-header__title {
                font-size: 1.9rem;
            }

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

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

        @media (max-width: 768px) {
            .navbar .container {
                gap: 12px;
            }

            .navbar__brand a {
                font-size: 0.82rem;
            }

            .navbar__brand-icon {
                width: 36px;
                height: 36px;
                font-size: 1rem;
                border-radius: 10px;
            }

            .navbar__links {
                display: none;
                flex-direction: column;
                align-items: stretch;
                width: 100%;
                padding: 12px 0 4px;
                gap: 4px;
            }

            .navbar__links.is-open {
                display: flex;
            }

            .navbar__link {
                padding: 10px 16px;
                font-size: 0.9rem;
                border-radius: 8px;
            }

            .navbar__auth {
                margin-left: auto;
            }

            .navbar__toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
                width: 42px;
                height: 42px;
            }

            .article-header {
                padding: 24px 0 16px;
                margin-bottom: 28px;
            }

            .article-header__title {
                font-size: 1.5rem;
            }

            .article-header__cover img {
                aspect-ratio: 16 / 10;
            }

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

            .article-cta-inline {
                padding: 24px;
                flex-direction: column;
                text-align: left;
            }

            .cta-section {
                padding: 32px 24px;
                flex-direction: column;
                text-align: left;
            }

            .cta-section__title {
                font-size: 1.3rem;
            }

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

            .btn--sm {
                width: auto;
            }

            .footer-grid {
                gap: 28px;
            }

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

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .navbar__brand a {
                font-size: 0.76rem;
                gap: 8px;
            }

            .navbar__auth .btn--sm {
                padding: 8px 12px;
                font-size: 0.72rem;
            }

            .article-header__title {
                font-size: 1.3rem;
            }

            .section-heading {
                font-size: 1.3rem;
            }

            .stats-bar {
                grid-template-columns: 1fr 1fr;
                padding: 24px 18px;
                gap: 16px;
            }

            .stat-item__number {
                font-size: 1.5rem;
            }

            .tips-grid,
            .reviews-grid,
            .related-grid {
                grid-template-columns: 1fr;
            }

            .breadcrumb {
                font-size: 0.78rem;
                gap: 6px;
            }

            .breadcrumb__current {
                max-width: 160px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #030712;
            --bg-secondary: #081229;
            --bg-tertiary: #0c1a35;
            --accent-blue: #2563EB;
            --accent-cyan: #38BDF8;
            --accent-glow: rgba(37, 99, 235, 0.25);
            --text-white: #F8FAFC;
            --text-slate: #94A3B8;
            --text-holo: #60A5FA;
            --border-subtle: rgba(56, 189, 248, 0.15);
            --border-glow: rgba(56, 189, 248, 0.4);
            --radius-sm: 10px;
            --radius-md: 18px;
            --radius-lg: 28px;
            --radius-xl: 38px;
            --shadow-card: 0 8px 30px rgba(3, 7, 18, 0.6);
            --shadow-glow: 0 0 22px rgba(56, 189, 248, 0.16);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 28px;
            --spacing-lg: 48px;
            --spacing-xl: 72px;
            --spacing-2xl: 100px;
            --font-primary: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        body {
            font-family: var(--font-primary);
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.6;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
            margin: 0;
            padding: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: var(--text-holo);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--accent-cyan);
            outline: none;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 1rem;
        }
        h1, h2, h3, h4, h5, h6 {
            margin: 0 0 0.5rem;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-white);
        }
        p {
            margin: 0 0 1rem;
        }
        ul, ol {
            margin: 0 0 1rem;
            padding-left: 1.5rem;
        }
        /* =============== CONTAINER =============== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }
        /* =============== SECTION BASE =============== */
        .section {
            padding: var(--spacing-xl) 0;
            position: relative;
        }
        .section--dark {
            background: var(--bg-primary);
        }
        .section--alt {
            background: var(--bg-secondary);
        }
        .section--gradient-border {
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }
        .section-header {
            margin-bottom: var(--spacing-lg);
            max-width: 800px;
        }
        .section-header--left {
            text-align: left;
        }
        .section-header--center {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }
        .section-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            background: rgba(56, 189, 248, 0.08);
            border: 1px solid rgba(56, 189, 248, 0.25);
            border-radius: 999px;
            padding: 6px 16px;
            margin-bottom: 14px;
        }
        .section-heading {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        .section-desc {
            font-size: 1rem;
            line-height: 1.65;
            color: var(--text-slate);
            max-width: 720px;
        }
        .section-header--center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }
        /* =============== BUTTONS =============== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-weight: 700;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            border-radius: 999px;
            padding: 14px 28px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            white-space: nowrap;
            line-height: 1.2;
            text-align: center;
            cursor: pointer;
            text-decoration: none;
        }
        .btn--primary {
            background: linear-gradient(135deg, var(--accent-blue) 0%, #1d4ed8 100%);
            color: #fff;
            box-shadow: 0 4px 20px rgba(37, 99, 235, 0.35);
            border: 1px solid rgba(56, 189, 248, 0.3);
        }
        .btn--primary:hover,
        .btn--primary:focus {
            background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
            color: #fff;
            box-shadow: 0 6px 30px rgba(37, 99, 235, 0.55);
            transform: translateY(-2px);
        }
        .btn--primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 12px rgba(37, 99, 235, 0.3);
        }
        .btn--ghost {
            background: transparent;
            color: var(--text-white);
            border: 1px solid rgba(56, 189, 248, 0.4);
            box-shadow: none;
        }
        .btn--ghost:hover,
        .btn--ghost:focus {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(56, 189, 248, 0.06);
        }
        .btn--ghost:active {
            transform: translateY(0);
            background: rgba(56, 189, 248, 0.1);
        }
        .btn--sm {
            padding: 10px 20px;
            font-size: 0.82rem;
        }
        .btn--lg {
            padding: 18px 36px;
            font-size: 1rem;
        }
        .btn--outline-cyan {
            background: transparent;
            color: var(--accent-cyan);
            border: 1px solid var(--border-glow);
            box-shadow: 0 0 12px rgba(56, 189, 248, 0.1);
        }
        .btn--outline-cyan:hover,
        .btn--outline-cyan:focus {
            background: rgba(56, 189, 248, 0.1);
            color: var(--accent-cyan);
            box-shadow: 0 0 20px rgba(56, 189, 248, 0.3);
            transform: translateY(-2px);
        }
        /* =============== NAVBAR =============== */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(3, 7, 18, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 24px;
            height: 68px;
            transition: var(--transition);
        }
        .navbar__brand a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-white);
            font-weight: 700;
            font-size: 0.92rem;
            letter-spacing: 0.01em;
            text-decoration: none;
            line-height: 1.3;
        }
        .navbar__brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.3), rgba(56, 189, 248, 0.2));
            border: 1px solid var(--border-glow);
            color: var(--accent-cyan);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .navbar__links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }
        .navbar__link {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            color: var(--text-slate);
            font-weight: 500;
            font-size: 0.82rem;
            letter-spacing: 0.02em;
            border-radius: 999px;
            transition: var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }
        .navbar__link:hover,
        .navbar__link:focus {
            color: var(--text-white);
            background: rgba(56, 189, 248, 0.08);
        }
        .navbar__link--active {
            color: var(--accent-cyan);
            background: rgba(56, 189, 248, 0.12);
            border: 1px solid rgba(56, 189, 248, 0.25);
        }
        .navbar__auth {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .navbar__toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            border: 1px solid var(--border-subtle);
            background: rgba(8, 18, 41, 0.7);
            color: var(--text-white);
            font-size: 1.1rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .navbar__toggle:hover {
            border-color: var(--border-glow);
            background: rgba(12, 26, 53, 0.9);
        }
        /* =============== HERO =============== */
        .hero-payment {
            padding: 130px 0 var(--spacing-xl);
            background: var(--bg-primary);
            position: relative;
            overflow: hidden;
        }
        .hero-payment::before {
            content: '';
            position: absolute;
            top: -200px;
            right: -200px;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.2) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-payment::after {
            content: '';
            position: absolute;
            bottom: -150px;
            left: -150px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(56, 189, 248, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-payment__grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-payment__content .section-tag {
            margin-bottom: 18px;
        }
        .hero-payment__title {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.015em;
            margin-bottom: 18px;
            color: var(--text-white);
        }
        .hero-payment__title .highlight {
            color: var(--accent-cyan);
            display: inline;
        }
        .hero-payment__desc {
            font-size: 1.05rem;
            line-height: 1.65;
            color: var(--text-slate);
            margin-bottom: 28px;
            max-width: 520px;
        }
        .hero-payment__actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }
        .hero-payment__meta {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }
        .hero-payment__meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-slate);
            font-size: 0.82rem;
            font-weight: 500;
        }
        .hero-payment__meta-item i {
            color: var(--accent-cyan);
            font-size: 0.9rem;
        }
        .hero-payment__visual {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        .hero-payment__visual-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-card);
        }
        .hero-payment__visual-card img {
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
        }
        .hero-payment__visual-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
            margin-top: 8px;
        }
        .hero-payment__stat {
            background: rgba(12, 26, 53, 0.7);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            padding: 14px 12px;
            text-align: center;
        }
        .hero-payment__stat-value {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--accent-cyan);
            font-family: var(--font-mono);
            letter-spacing: -0.02em;
        }
        .hero-payment__stat-label {
            font-size: 0.7rem;
            color: var(--text-slate);
            font-weight: 500;
            margin-top: 2px;
        }
        /* =============== PAYMENT CARDS =============== */
        .payment-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-sm);
        }
        .payment-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }
        .payment-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow), var(--shadow-card);
            transform: translateY(-4px);
        }
        .payment-card__icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 14px;
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.25), rgba(56, 189, 248, 0.12));
            border: 1px solid var(--border-subtle);
            color: var(--accent-cyan);
        }
        .payment-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .payment-card p {
            font-size: 0.88rem;
            color: var(--text-slate);
            line-height: 1.55;
            margin-bottom: 12px;
        }
        .payment-card__badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.7rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            color: var(--accent-cyan);
            background: rgba(56, 189, 248, 0.08);
            border-radius: 999px;
            padding: 4px 12px;
        }
        .payment-card__badge i {
            font-size: 0.6rem;
        }
        /* =============== STEPS =============== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
            counter-reset: step-counter;
        }
        .step-item {
            background: var(--bg-primary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            position: relative;
            transition: var(--transition);
        }
        .step-item:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow);
        }
        .step-item__number {
            font-size: 2.2rem;
            font-weight: 800;
            font-family: var(--font-mono);
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 12px;
            letter-spacing: -0.03em;
        }
        .step-item h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 0.88rem;
            color: var(--text-slate);
            line-height: 1.55;
            margin-bottom: 0;
        }
        /* =============== SOCIAL PROOF =============== */
        .proof-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-sm);
        }
        .proof-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 22px;
            transition: var(--transition);
        }
        .proof-card:hover {
            border-color: var(--border-glow);
            transform: translateY(-2px);
        }
        .proof-card__stars {
            color: #FACC15;
            font-size: 0.85rem;
            letter-spacing: 2px;
            margin-bottom: 10px;
        }
        .proof-card__text {
            font-size: 0.9rem;
            color: var(--text-slate);
            line-height: 1.6;
            margin-bottom: 12px;
            font-style: italic;
        }
        .proof-card__user {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .proof-card__avatar {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.5), rgba(56, 189, 248, 0.3));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: #fff;
            font-weight: 600;
            flex-shrink: 0;
        }
        .proof-card__name {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--text-white);
        }
        .proof-card__time {
            font-size: 0.7rem;
            color: var(--text-slate);
        }
        /* =============== COMPARISON =============== */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-md);
        }
        .comparison-card {
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: var(--transition);
        }
        .comparison-card--old {
            background: rgba(127, 127, 127, 0.06);
            border: 1px solid rgba(148, 163, 184, 0.15);
        }
        .comparison-card--new {
            background: rgba(37, 99, 235, 0.08);
            border: 1px solid var(--border-glow);
            box-shadow: var(--shadow-glow);
        }
        .comparison-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .comparison-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .comparison-card li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.88rem;
            color: var(--text-slate);
            margin-bottom: 10px;
            line-height: 1.55;
        }
        .comparison-card li i {
            margin-top: 4px;
            flex-shrink: 0;
        }
        .comparison-card--old li i {
            color: #64748B;
        }
        .comparison-card--new li i {
            color: var(--accent-cyan);
        }
        /* =============== CMS LIST =============== */
        .cms-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-sm);
        }
        .cms-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .cms-card:hover {
            border-color: var(--border-glow);
            transform: translateY(-3px);
            box-shadow: var(--shadow-glow);
        }
        .cms-card__category {
            font-size: 0.68rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--accent-cyan);
            margin-bottom: 8px;
        }
        .cms-card h3 {
            font-size: 0.95rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
        }
        .cms-card h3 a {
            color: var(--text-white);
            text-decoration: none;
            transition: var(--transition);
        }
        .cms-card h3 a:hover {
            color: var(--accent-cyan);
        }
        .cms-card p {
            font-size: 0.82rem;
            color: var(--text-slate);
            line-height: 1.55;
            margin-bottom: 12px;
            flex-grow: 1;
        }
        .cms-card__time {
            font-size: 0.72rem;
            color: var(--text-slate);
            border-top: 1px solid var(--border-subtle);
            padding-top: 10px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .cms-card__time i {
            font-size: 0.65rem;
            color: var(--accent-cyan);
        }
        .cms-empty {
            text-align: center;
            color: var(--text-slate);
            font-size: 0.9rem;
            padding: 30px 20px;
            background: var(--bg-secondary);
            border: 1px dashed var(--border-subtle);
            border-radius: var(--radius-md);
        }
        /* =============== FAQ =============== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            transition: var(--transition);
            overflow: hidden;
        }
        .faq-item:hover {
            border-color: var(--border-glow);
        }
        .faq-item summary {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-white);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: var(--transition);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.75rem;
            color: var(--text-slate);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: var(--accent-cyan);
        }
        .faq-item summary:hover {
            color: var(--accent-cyan);
        }
        .faq-item__body {
            padding: 0 22px 20px;
            font-size: 0.88rem;
            color: var(--text-slate);
            line-height: 1.65;
        }
        .faq-item__body p {
            margin-bottom: 0;
        }
        /* =============== TRUST BAR =============== */
        .trust-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-sm);
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 28px 20px;
        }
        .trust-bar__item {
            display: flex;
            align-items: center;
            gap: 12px;
            justify-content: center;
        }
        .trust-bar__icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            background: rgba(56, 189, 248, 0.1);
            border: 1px solid var(--border-subtle);
            color: var(--accent-cyan);
            flex-shrink: 0;
        }
        .trust-bar__text {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--text-white);
        }
        .trust-bar__sub {
            font-size: 0.68rem;
            color: var(--text-slate);
        }
        /* =============== FOOTER =============== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: var(--spacing-xl) 0 30px;
            position: relative;
            z-index: 1;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }
        .footer__brand-name {
            display: block;
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 10px;
        }
        .footer__brand {
            font-size: 0.85rem;
            color: var(--text-slate);
            line-height: 1.6;
            margin-bottom: 14px;
            max-width: 360px;
        }
        .footer__badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer__badge {
            display: inline-flex;
            align-items: center;
            padding: 5px 12px;
            border-radius: 999px;
            font-size: 0.7rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            background: rgba(56, 189, 248, 0.08);
            border: 1px solid var(--border-subtle);
            color: var(--text-slate);
        }
        .footer__col-title {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-white);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 14px;
        }
        .footer__link {
            display: block;
            font-size: 0.85rem;
            color: var(--text-slate);
            margin-bottom: 9px;
            transition: var(--transition);
            text-decoration: none;
        }
        .footer__link:hover {
            color: var(--accent-cyan);
            padding-left: 4px;
        }
        .footer__bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer__bottom span {
            font-size: 0.78rem;
            color: var(--text-slate);
        }
        /* =============== FAB =============== */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            background: rgba(7, 7, 13, 0.8);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid;
            border-image-slice: 1;
            border-image-source: linear-gradient(135deg, #A3E635, #06B6D4);
            color: var(--accent-cyan);
            box-shadow: 0 0 20px rgba(6, 182, 212, 0.45), 0 6px 25px rgba(3, 7, 18, 0.6);
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            animation: fabBreath 3s ease-in-out infinite;
            text-decoration: none;
        }
        .fab:hover {
            opacity: 1;
            box-shadow: 0 0 32px rgba(6, 182, 212, 0.7), 0 8px 30px rgba(3, 7, 18, 0.7);
            transform: scale(1.06);
            color: #fff;
        }
        .fab:active {
            transform: scale(0.95);
            box-shadow: 0 0 12px rgba(6, 182, 212, 0.4);
        }
        .fab__badge {
            position: absolute;
            top: -3px;
            right: -3px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #EF4444;
            border: 2px solid #fff;
            animation: fabPulse 2s ease-in-out infinite;
        }
        @keyframes fabBreath {
            0%, 100% { opacity: 0.75; }
            50% { opacity: 0.95; }
        }
        @keyframes fabPulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.25); }
        }
        /* =============== STICKY BOTTOM CTA =============== */
        .sticky-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 90;
            background: rgba(3, 7, 18, 0.95);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid var(--border-glow);
            padding: 12px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transform: translateY(0);
            transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .sticky-cta--hidden {
            transform: translateY(100%);
        }
        .sticky-cta__text {
            font-size: 0.85rem;
            color: var(--text-slate);
            font-weight: 500;
        }
        .sticky-cta__text strong {
            color: var(--text-white);
            display: block;
            font-size: 0.9rem;
        }
        .sticky-cta__actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .sticky-cta__close {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            color: var(--text-slate);
            background: rgba(148, 163, 184, 0.1);
            cursor: pointer;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .sticky-cta__close:hover {
            color: #fff;
            background: rgba(148, 163, 184, 0.2);
        }
        /* =============== RESPONSIVE =============== */
        @media (max-width: 1024px) {
            .hero-payment__grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .hero-payment__title {
                font-size: 2.2rem;
            }
            .payment-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .proof-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cms-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .trust-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .navbar {
                padding: 10px 16px;
                height: 60px;
            }
            .navbar__brand a {
                font-size: 0.72rem;
                max-width: 210px;
            }
            .navbar__brand-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .navbar__links {
                display: none;
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                background: rgba(3, 7, 18, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                border-bottom: 1px solid var(--border-subtle);
                padding: 16px 20px;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                z-index: 99;
            }
            .navbar__links--open {
                display: flex;
            }
            .navbar__link {
                padding: 12px 16px;
                font-size: 0.88rem;
                border-radius: 8px;
                white-space: normal;
            }
            .navbar__auth {
                gap: 6px;
            }
            .navbar__auth .btn--sm {
                padding: 8px 14px;
                font-size: 0.75rem;
            }
            .navbar__toggle {
                display: flex;
            }
            .section {
                padding: var(--spacing-lg) 0;
            }
            .section-heading {
                font-size: 1.5rem;
            }
            .section-desc {
                font-size: 0.9rem;
            }
            .hero-payment {
                padding: 110px 0 var(--spacing-lg);
            }
            .hero-payment__title {
                font-size: 1.7rem;
            }
            .hero-payment__desc {
                font-size: 0.92rem;
            }
            .hero-payment__actions {
                flex-direction: column;
                gap: 10px;
            }
            .hero-payment__actions .btn {
                width: 100%;
            }
            .hero-payment__visual-stats {
                grid-template-columns: repeat(3, 1fr);
                gap: 8px;
            }
            .hero-payment__stat {
                padding: 10px 6px;
            }
            .hero-payment__stat-value {
                font-size: 0.95rem;
            }
            .hero-payment__stat-label {
                font-size: 0.62rem;
            }
            .payment-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-sm);
            }
            .proof-grid {
                grid-template-columns: 1fr;
            }
            .cms-list {
                grid-template-columns: 1fr;
            }
            .trust-bar {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
                padding: 20px 14px;
            }
            .trust-bar__item {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .trust-bar__icon {
                width: 34px;
                height: 34px;
                font-size: 0.85rem;
            }
            .trust-bar__text {
                font-size: 0.72rem;
            }
            .trust-bar__sub {
                font-size: 0.6rem;
            }
            .comparison-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .footer__bottom {
                flex-direction: column;
                text-align: center;
            }
            .fab {
                left: 12px;
                bottom: 80px;
                width: 48px;
                height: 48px;
                font-size: 1.1rem;
                border-radius: 14px;
            }
            .sticky-cta {
                padding: 10px 14px;
                gap: 10px;
            }
            .sticky-cta__text {
                font-size: 0.72rem;
            }
            .sticky-cta__text strong {
                font-size: 0.8rem;
            }
            .sticky-cta__actions .btn {
                padding: 10px 16px;
                font-size: 0.75rem;
                white-space: normal;
            }
        }
        @media (max-width: 520px) {
            .navbar {
                padding: 8px 12px;
                height: 56px;
            }
            .navbar__brand a {
                font-size: 0.62rem;
                gap: 6px;
                max-width: 160px;
            }
            .navbar__brand-icon {
                width: 28px;
                height: 28px;
                font-size: 0.8rem;
            }
            .navbar__auth .btn--sm {
                padding: 6px 10px;
                font-size: 0.68rem;
                white-space: nowrap;
            }
            .navbar__toggle {
                width: 36px;
                height: 36px;
                font-size: 0.9rem;
            }
            .navbar__links {
                top: 56px;
                padding: 12px 14px;
            }
            .hero-payment {
                padding: 95px 0 var(--spacing-md);
            }
            .hero-payment__title {
                font-size: 1.35rem;
            }
            .hero-payment__meta {
                gap: 12px;
                flex-direction: column;
            }
            .hero-payment__visual-stats {
                grid-template-columns: 1fr;
                gap: 6px;
            }
            .hero-payment__stat {
                padding: 8px 6px;
                display: flex;
                align-items: center;
                justify-content: space-between;
                text-align: left;
                gap: 8px;
            }
            .hero-payment__stat-value {
                font-size: 0.9rem;
            }
            .trust-bar {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .trust-bar__item {
                flex-direction: row;
                text-align: left;
                gap: 10px;
            }
            .sticky-cta {
                flex-direction: row;
                align-items: center;
                padding: 10px 12px;
            }
            .sticky-cta__text strong {
                font-size: 0.7rem;
            }
            .sticky-cta__text {
                font-size: 0.62rem;
                line-height: 1.3;
            }
            .sticky-cta__actions {
                gap: 4px;
            }
            .sticky-cta__actions .btn {
                padding: 8px 12px;
                font-size: 0.65rem;
                white-space: nowrap;
            }
            .sticky-cta__close {
                width: 26px;
                height: 26px;
                font-size: 0.65rem;
            }
            .container {
                padding: 0 14px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #030712;
            --bg-secondary: #081229;
            --bg-tertiary: #0c1a35;
            --bg-card: #0d1b38;
            --accent-blue: #2563EB;
            --accent-blue-dark: #1d4ed8;
            --accent-cyan: #38BDF8;
            --accent-glow: rgba(37, 99, 235, 0.25);
            --accent-pink: #F43F5E;
            --text-white: #F8FAFC;
            --text-slate: #94A3B8;
            --text-holo: #60A5FA;
            --text-dim: #64748B;
            --border-subtle: rgba(56, 189, 248, 0.15);
            --border-glow: rgba(56, 189, 248, 0.4);
            --border-strong: rgba(56, 189, 248, 0.65);
            --radius-sm: 10px;
            --radius-md: 18px;
            --radius-lg: 28px;
            --radius-xl: 38px;
            --shadow-card: 0 8px 30px rgba(3, 7, 18, 0.6);
            --shadow-glow: 0 0 22px rgba(56, 189, 248, 0.16);
            --shadow-strong: 0 10px 40px rgba(37, 99, 235, 0.35);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 28px;
            --spacing-lg: 48px;
            --spacing-xl: 72px;
            --spacing-2xl: 100px;
            --font-primary: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-fast: all 0.18s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --nav-height: 76px;
        }

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

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

        body {
            font-family: var(--font-primary);
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.65;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
            margin: 0;
            padding: 0;
            position: relative;
        }

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

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

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

        h1, h2, h3, h4, h5, h6 {
            margin: 0 0 16px;
            line-height: 1.3;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.01em;
        }

        p {
            margin: 0 0 16px;
            color: var(--text-slate);
        }

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

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

        /* =============== CONTAINER =============== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* =============== NAVBAR =============== */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-sm);
            min-height: var(--nav-height);
            padding: 0 24px;
            background: rgba(3, 7, 18, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            transition: var(--transition);
        }

        .navbar__brand a {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-white);
            font-weight: 800;
            font-size: 0.95rem;
            letter-spacing: 0.01em;
            line-height: 1.3;
        }

        .navbar__brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            flex-shrink: 0;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.3), rgba(56, 189, 248, 0.2));
            border: 1px solid var(--border-glow);
            color: var(--accent-cyan);
            font-size: 1.15rem;
        }

        .navbar__links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }

        .navbar__link {
            display: inline-block;
            color: var(--text-slate);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 8px 16px;
            border-radius: 999px;
            transition: var(--transition-fast);
            position: relative;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .navbar__link:hover,
        .navbar__link:focus {
            color: var(--text-white);
            background: rgba(56, 189, 248, 0.08);
        }

        .navbar__link--active {
            color: var(--accent-cyan);
            background: rgba(56, 189, 248, 0.1);
        }

        .navbar__link--active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            border-radius: 99px;
            background: var(--accent-cyan);
            box-shadow: 0 0 10px rgba(56, 189, 248, 0.6);
        }

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

        .navbar__toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            color: var(--text-white);
            font-size: 1.3rem;
            background: rgba(56, 189, 248, 0.1);
            border: 1px solid var(--border-subtle);
            transition: var(--transition);
        }

        .navbar__toggle:hover {
            background: rgba(56, 189, 248, 0.2);
            border-color: var(--border-glow);
        }

        /* =============== BUTTONS =============== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-weight: 700;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            border-radius: 999px;
            padding: 14px 28px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            white-space: nowrap;
            line-height: 1.2;
            text-align: center;
            border: 1px solid transparent;
        }

        .btn--sm {
            padding: 10px 20px;
            font-size: 0.82rem;
        }

        .btn--lg {
            padding: 16px 36px;
            font-size: 1rem;
        }

        .btn--primary {
            background: linear-gradient(135deg, var(--accent-blue) 0%, #1d4ed8 100%);
            color: #fff;
            box-shadow: 0 4px 20px rgba(37, 99, 235, 0.35);
            border: 1px solid rgba(56, 189, 248, 0.3);
        }

        .btn--primary:hover,
        .btn--primary:focus {
            background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
            color: #fff;
            box-shadow: 0 6px 30px rgba(37, 99, 235, 0.55);
            transform: translateY(-2px);
        }

        .btn--primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 12px rgba(37, 99, 235, 0.3);
        }

        .btn--ghost {
            background: transparent;
            color: var(--text-white);
            border: 1px solid rgba(56, 189, 248, 0.4);
            box-shadow: none;
        }

        .btn--ghost:hover,
        .btn--ghost:focus {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(56, 189, 248, 0.08);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        .btn--ghost:active {
            transform: translateY(0);
        }

        .btn--cyan {
            background: linear-gradient(135deg, var(--accent-cyan) 0%, #0ea5e9 100%);
            color: #030712;
            box-shadow: 0 4px 20px rgba(56, 189, 248, 0.35);
            border: 1px solid rgba(56, 189, 248, 0.5);
            font-weight: 800;
        }

        .btn--cyan:hover,
        .btn--cyan:focus {
            background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
            color: #fff;
            box-shadow: 0 6px 32px rgba(56, 189, 248, 0.6);
            transform: translateY(-2px);
        }

        .btn--cyan:active {
            transform: translateY(0);
        }

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

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

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

        .section--gradient-border {
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .section-header {
            margin-bottom: var(--spacing-lg);
            max-width: 800px;
        }

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

        .section-header--center {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            background: rgba(56, 189, 248, 0.08);
            border: 1px solid rgba(56, 189, 248, 0.25);
            border-radius: 999px;
            padding: 6px 16px;
            margin-bottom: 14px;
        }

        .section-heading {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 1rem;
            line-height: 1.65;
            color: var(--text-slate);
            max-width: 720px;
        }

        .section-header--center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* =============== HERO =============== */
        .hero-bonus {
            position: relative;
            padding: calc(var(--nav-height) + 60px) 0 var(--spacing-2xl);
            background: var(--bg-primary);
            overflow: hidden;
            min-height: 100vh;
            display: flex;
            align-items: center;
        }

        .hero-bonus__bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            background: url('/assets/images/8076a7e3eeee54dd.jpg') center/cover no-repeat;
            opacity: 0.35;
        }

        .hero-bonus__bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(3,7,18,0.6) 0%, rgba(3,7,18,0.85) 50%, var(--bg-primary) 100%);
        }

        .hero-bonus__content {
            position: relative;
            z-index: 1;
            max-width: 720px;
        }

        .hero-bonus__badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            background: rgba(56, 189, 248, 0.12);
            border: 1px solid var(--border-glow);
            border-radius: 999px;
            padding: 8px 20px;
            margin-bottom: 20px;
        }

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

        .hero-bonus h1 {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
            color: var(--text-white);
            text-shadow: 0 4px 30px rgba(3, 7, 18, 0.7);
        }

        .hero-bonus h1 .highlight {
            background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }

        .hero-bonus__sub {
            font-size: 1.1rem;
            line-height: 1.65;
            color: var(--text-slate);
            max-width: 600px;
            margin-bottom: 28px;
        }

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

        .hero-bonus__note {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-slate);
            margin-top: 20px;
        }

        .hero-bonus__note i {
            color: var(--accent-cyan);
        }

        /* =============== STATS BAR =============== */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-sm);
            margin-top: -30px;
            position: relative;
            z-index: 2;
        }

        .stat-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }

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

        .stat-item__number {
            font-size: 1.8rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
            margin-bottom: 6px;
            letter-spacing: -0.02em;
        }

        .stat-item__label {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--text-slate);
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        /* =============== BONUS CARDS =============== */
        .bonus-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }

        .bonus-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

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

        .bonus-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow);
            transform: translateY(-6px);
        }

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

        .bonus-card__icon {
            width: 56px;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.25), rgba(56, 189, 248, 0.15));
            border: 1px solid var(--border-glow);
            color: var(--accent-cyan);
            font-size: 1.5rem;
            margin-bottom: 20px;
        }

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

        .bonus-card p {
            font-size: 0.92rem;
            color: var(--text-slate);
            margin-bottom: 16px;
        }

        .bonus-card__value {
            font-family: var(--font-mono);
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--accent-cyan);
            letter-spacing: -0.01em;
        }

        /* =============== HOW TO =============== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }

        .step-card {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: var(--transition);
            position: relative;
        }

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

        .step-card__number {
            font-family: var(--font-mono);
            font-size: 3rem;
            font-weight: 900;
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.4), rgba(56, 189, 248, 0.2));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
            margin-bottom: 12px;
            letter-spacing: -0.04em;
            line-height: 1;
        }

        .step-card h3 {
            font-size: 1.1rem;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .step-card p {
            font-size: 0.9rem;
            color: var(--text-slate);
            margin-bottom: 0;
        }

        /* =============== SHOWCASE =============== */
        .showcase-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            align-items: center;
        }

        .showcase-img {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-subtle);
        }

        .showcase-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 16/10;
        }

        .showcase-img__overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 30px 24px;
            background: linear-gradient(0deg, rgba(3,7,18,0.9) 0%, transparent 100%);
            border-bottom-left-radius: var(--radius-xl);
            border-bottom-right-radius: var(--radius-xl);
        }

        .showcase-img__overlay span {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--accent-cyan);
            background: rgba(3,7,18,0.7);
            padding: 6px 14px;
            border-radius: 99px;
            border: 1px solid var(--border-glow);
        }

        .showcase-content h2 {
            font-size: 1.7rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .showcase-content p {
            font-size: 1rem;
            color: var(--text-slate);
            margin-bottom: 12px;
        }

        /* =============== COMPARISON =============== */
        .comparison-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-md);
        }

        .comparison-card {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: var(--transition);
        }

        .comparison-card--featured {
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.15), rgba(56, 189, 248, 0.05));
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow);
        }

        .comparison-card__header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
        }

        .comparison-card__header h3 {
            font-size: 1.1rem;
            font-weight: 800;
            margin-bottom: 0;
        }

        .comparison-card__tag {
            font-size: 0.7rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--accent-cyan);
            background: rgba(56, 189, 248, 0.12);
            padding: 5px 14px;
            border-radius: 99px;
            border: 1px solid var(--border-glow);
        }

        .comparison-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 0;
            font-size: 0.9rem;
            color: var(--text-slate);
            border-bottom: 1px solid rgba(56, 189, 248, 0.08);
        }

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

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

        .comparison-list li i.fa-circle-check {
            color: #10B981;
        }

        .comparison-list li i.fa-circle-minus {
            color: var(--text-dim);
        }

        /* =============== NEWS LIST =============== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-md);
        }

        .news-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 24px 22px;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }

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

        .news-card a {
            color: inherit;
        }

        .news-card a:hover {
            color: inherit;
        }

        .news-card h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-white);
        }

        .news-card p {
            font-size: 0.88rem;
            color: var(--text-slate);
            margin-bottom: 14px;
            line-height: 1.55;
        }

        .news-card__meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.75rem;
            color: var(--text-dim);
        }

        .news-card__meta i {
            color: var(--accent-cyan);
            margin-right: 4px;
        }

        .empty-state {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-slate);
            font-size: 0.95rem;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
        }

        /* =============== FAQ =============== */
        .faq-list {
            max-width: 800px;
            margin: 0;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-item summary {
            padding: 20px 24px;
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            list-style: none;
            position: relative;
            padding-right: 52px;
            transition: var(--transition);
        }

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

        .faq-item summary::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            right: 20px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 1.1rem;
            color: var(--accent-cyan);
            transition: var(--transition);
        }

        .faq-item[open] summary::after {
            transform: translateY(-50%) rotate(180deg);
        }

        .faq-item[open] summary {
            border-bottom: 1px solid var(--border-subtle);
            background: rgba(56, 189, 248, 0.05);
        }

        .faq-item__body {
            padding: 18px 24px;
            font-size: 0.9rem;
            color: var(--text-slate);
            line-height: 1.65;
        }

        .faq-item__body p {
            margin: 0;
            color: var(--text-slate);
        }

        /* =============== TRUST BAR =============== */
        .trust-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-sm);
        }

        .trust-item {
            display: flex;
            align-items: center;
            gap: 14px;
            background: var(--bg-tertiary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            transition: var(--transition);
        }

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

        .trust-item__icon {
            width: 44px;
            height: 44px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.25), rgba(56, 189, 248, 0.12));
            border: 1px solid var(--border-glow);
            color: var(--accent-cyan);
            font-size: 1.15rem;
        }

        .trust-item__text {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-white);
        }

        .trust-item__sub {
            font-size: 0.72rem;
            color: var(--text-slate);
            font-weight: 400;
        }

        /* =============== CTA SECTION =============== */
        .cta-final {
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.15), rgba(56, 189, 248, 0.05));
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-xl);
            padding: 56px 40px;
            text-align: center;
        }

        .cta-final h2 {
            font-size: 1.8rem;
            font-weight: 900;
            margin-bottom: 16px;
        }

        .cta-final p {
            font-size: 1rem;
            color: var(--text-slate);
            max-width: 540px;
            margin: 0 auto 24px;
        }

        .cta-final__actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* =============== BOTTOM FIXED CTA =============== */
        .bottom-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 900;
            padding: 14px 24px;
            background: rgba(3, 7, 18, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border-glow);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transform: translateY(100%);
            transition: transform 0.4s ease;
            box-shadow: 0 -8px 32px rgba(3, 7, 18, 0.7);
        }

        .bottom-cta--visible {
            transform: translateY(0);
        }

        .bottom-cta__text {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-white);
        }

        .bottom-cta__text span {
            display: block;
            font-size: 0.75rem;
            font-weight: 400;
            color: var(--text-slate);
        }

        .bottom-cta__actions {
            display: flex;
            gap: 10px;
            flex-shrink: 0;
        }

        /* =============== FAB =============== */
        .fab-neon {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 950;
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(7, 7, 13, 0.8);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.4rem;
            text-decoration: none;
            transition: var(--transition);
            box-shadow: 0 0 20px rgba(6, 182, 212, 0.45), 0 4px 16px rgba(3, 7, 18, 0.6);
            position: relative;
            animation: fab-pulse-border 2.6s ease-in-out infinite;
        }

        .fab-neon::before {
            content: '';
            position: absolute;
            inset: -3px;
            border-radius: 19px;
            background: linear-gradient(135deg, #A3E635, #06B6D4, #EC4899, #2563EB);
            z-index: -1;
            background-size: 300% 300%;
            animation: fab-gradient-shift 4s ease infinite;
        }

        .fab-neon::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: 16px;
            background: rgba(7, 7, 13, 0.85);
            z-index: -1;
            backdrop-filter: blur(12px);
        }

        .fab-neon:hover,
        .fab-neon:focus {
            transform: scale(1.1);
            box-shadow: 0 0 32px rgba(6, 182, 212, 0.7), 0 6px 24px rgba(3, 7, 18, 0.7);
            color: #fff;
        }

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

        .fab-neon__badge {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 16px;
            height: 16px;
            background: #F43F5E;
            border-radius: 50%;
            border: 2px solid #fff;
            animation: fab-badge-pulse 1.6s ease-in-out infinite;
        }

        @keyframes fab-pulse-border {
            0%, 100% {
                box-shadow: 0 0 20px rgba(6, 182, 212, 0.45), 0 4px 16px rgba(3, 7, 18, 0.6);
            }
            50% {
                box-shadow: 0 0 32px rgba(6, 182, 212, 0.75), 0 4px 20px rgba(3, 7, 18, 0.7);
            }
        }

        @keyframes fab-gradient-shift {
            0% {
                background-position: 0% 50%;
            }
            50% {
                background-position: 100% 50%;
            }
            100% {
                background-position: 0% 50%;
            }
        }

        @keyframes fab-badge-pulse {
            0%, 100% {
                transform: scale(1);
                opacity: 1;
            }
            50% {
                transform: scale(1.25);
                opacity: 0.75;
            }
        }

        /* =============== FOOTER =============== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: var(--spacing-xl) 0 var(--spacing-lg);
            margin-bottom: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }

        .footer__brand-name {
            display: block;
            font-size: 1rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .footer__brand {
            font-size: 0.85rem;
            color: var(--text-slate);
            line-height: 1.6;
            margin-bottom: 16px;
            max-width: 360px;
        }

        .footer__badge-row {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .footer__badge {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: var(--accent-cyan);
            background: rgba(56, 189, 248, 0.1);
            border: 1px solid var(--border-subtle);
            border-radius: 6px;
            padding: 5px 12px;
            text-transform: uppercase;
        }

        .footer__col-title {
            font-size: 0.9rem;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text-white);
        }

        .footer__link {
            display: block;
            font-size: 0.85rem;
            color: var(--text-slate);
            margin-bottom: 10px;
            transition: var(--transition-fast);
        }

        .footer__link:hover,
        .footer__link:focus {
            color: var(--accent-cyan);
            transform: translateX(4px);
        }

        .footer__bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
            text-align: center;
            font-size: 0.75rem;
            color: var(--text-dim);
        }

        .footer__bottom span {
            display: block;
            margin-bottom: 4px;
        }

        /* =============== RESPONSIVE =============== */
        @media (max-width: 1024px) {
            .container {
                padding: 0 18px;
            }

            .hero-bonus h1 {
                font-size: 2.2rem;
            }

            .section-heading {
                font-size: 1.7rem;
            }

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

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

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

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

        @media (max-width: 768px) {
            :root {
                --nav-height: 66px;
                --spacing-xl: 52px;
                --spacing-lg: 36px;
                --spacing-md: 22px;
            }

            .navbar {
                padding: 0 16px;
                gap: 8px;
            }

            .navbar__brand a {
                font-size: 0.75rem;
            }

            .navbar__brand-icon {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }

            .navbar__links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                background: rgba(3, 7, 18, 0.98);
                backdrop-filter: blur(20px);
                border-bottom: 1px solid var(--border-subtle);
                padding: 16px;
                gap: 6px;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.35s ease, padding 0.3s ease;
                visibility: hidden;
            }

            .navbar__links--open {
                max-height: 360px;
                padding: 16px;
                visibility: visible;
            }

            .navbar__link {
                font-size: 0.95rem;
                padding: 12px 18px;
                border-radius: 10px;
            }

            .navbar__link--active {
                background: rgba(56, 189, 248, 0.12);
            }

            .navbar__link--active::after {
                display: none;
            }

            .navbar__auth {
                gap: 6px;
            }

            .navbar__auth .btn--sm {
                padding: 8px 14px;
                font-size: 0.72rem;
            }

            .navbar__toggle {
                display: flex;
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
            }

            .hero-bonus {
                padding-top: calc(var(--nav-height) + 40px);
                min-height: auto;
                padding-bottom: var(--spacing-xl);
            }

            .hero-bonus h1 {
                font-size: 1.8rem;
            }

            .hero-bonus__sub {
                font-size: 0.95rem;
            }

            .section-heading {
                font-size: 1.4rem;
            }

            .section-desc {
                font-size: 0.92rem;
            }

            .bonus-grid,
            .steps-grid,
            .comparison-wrap,
            .news-grid {
                grid-template-columns: 1fr;
            }

            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }

            .stat-item {
                padding: 18px 14px;
            }

            .stat-item__number {
                font-size: 1.4rem;
            }

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

            .trust-bar {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .trust-item {
                padding: 14px 12px;
                gap: 10px;
            }

            .trust-item__icon {
                width: 36px;
                height: 36px;
                font-size: 0.95rem;
            }

            .trust-item__text {
                font-size: 0.72rem;
            }

            .cta-final {
                padding: 36px 20px;
            }

            .cta-final h2 {
                font-size: 1.4rem;
            }

            .bottom-cta {
                padding: 12px 16px;
                gap: 10px;
            }

            .bottom-cta__text {
                font-size: 0.75rem;
            }

            .bottom-cta__text span {
                font-size: 0.68rem;
            }

            .bottom-cta__actions .btn {
                padding: 10px 18px;
                font-size: 0.78rem;
            }

            .fab-neon {
                width: 48px;
                height: 48px;
                left: 12px;
                bottom: 80px;
                font-size: 1.2rem;
                border-radius: 14px;
            }

            .fab-neon::before {
                inset: -2px;
                border-radius: 16px;
            }

            .fab-neon::after {
                border-radius: 14px;
            }

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

            .footer__brand {
                max-width: 100%;
            }
        }

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

            .navbar__auth .btn--sm {
                padding: 7px 12px;
                font-size: 0.68rem;
            }

            .navbar__brand a {
                font-size: 0.68rem;
            }

            .hero-bonus h1 {
                font-size: 1.5rem;
            }

            .hero-bonus__actions {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-bonus__actions .btn {
                width: 100%;
            }

            .stats-bar {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }

            .stat-item__number {
                font-size: 1.2rem;
            }

            .stat-item__label {
                font-size: 0.7rem;
            }

            .bonus-card,
            .step-card,
            .comparison-card {
                padding: 22px 18px;
            }

            .trust-bar {
                grid-template-columns: 1fr;
                gap: 8px;
            }

            .cta-final__actions {
                flex-direction: column;
            }

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

            .bottom-cta__actions {
                flex-direction: column;
                gap: 6px;
            }

            .bottom-cta__actions .btn {
                padding: 8px 14px;
                font-size: 0.7rem;
            }
        }

        @media (min-width: 769px) {
            .navbar__links {
                display: flex !important;
                visibility: visible !important;
                position: relative;
                max-height: none !important;
                overflow: visible !important;
            }
        }