/* roulang page: index */
:root {
        --primary-bg: #0B3C25;
        --secondary-bg: #062315;
        --deep-ocean: #0D2A1C;
        --accent-gold: #FFCC00;
        --accent-lime: #32CD32;
        --accent-lime-soft: #A6E22E;
        --text-warm: #FFFDF0;
        --text-muted: #C5E2D2;
        --text-subtle: #93B8A4;
        --border-soft: rgba(255, 204, 0, 0.25);
        --border-gold: rgba(255, 204, 0, 0.55);
        --radius-lg: 24px;
        --radius-md: 16px;
        --radius-sm: 12px;
        --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.25);
        --shadow-gold: 0 8px 25px rgba(255, 204, 0, 0.18);
        --shadow-lime: 0 8px 25px rgba(50, 205, 50, 0.15);
        --spacing-section: 5rem;
        --font-sans: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
        --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    * {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        font-family: var(--font-sans);
        background-color: var(--primary-bg);
        color: var(--text-warm);
        line-height: 1.65;
        overflow-x: hidden;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    a {
        color: inherit;
        text-decoration: none;
        transition: color var(--transition-base);
    }
    a:hover {
        color: var(--accent-gold);
    }
    button {
        font-family: inherit;
        cursor: pointer;
        border: none;
        outline: none;
    }
    button:focus-visible,
    a:focus-visible {
        outline: 3px solid var(--accent-lime);
        outline-offset: 2px;
    }
    input {
        font-family: inherit;
        outline: none;
    }
    ::selection {
        background: var(--accent-gold);
        color: var(--secondary-bg);
    }
    /* ===== Container ===== */
    .container {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
    }
    @media (max-width: 768px) {
        .container {
            padding: 0 16px;
        }
    }
    /* ===== Header / Nav ===== */
    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        background: rgba(6, 35, 21, 0.92);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        border-bottom: 1px solid rgba(255, 204, 0, 0.18);
        transition: box-shadow var(--transition-base);
    }
    .site-header.scrolled {
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
    }
    .nav-wrapper {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 72px;
        gap: 20px;
    }
    .nav-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-shrink: 0;
    }
    .nav-logo .logo-icon {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--accent-gold), #E6A800);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
        color: var(--secondary-bg);
        box-shadow: 0 0 15px rgba(255, 204, 0, 0.4);
        flex-shrink: 0;
    }
    .nav-logo .logo-text {
        font-weight: 800;
        font-size: 17px;
        color: var(--text-warm);
        letter-spacing: -0.02em;
        line-height: 1.2;
        white-space: nowrap;
    }
    .nav-logo .logo-text span {
        color: var(--accent-gold);
    }
    .nav-links {
        display: flex;
        align-items: center;
        gap: 6px;
        flex-wrap: nowrap;
    }
    .nav-links a {
        padding: 8px 16px;
        border-radius: 9999px;
        font-size: 14px;
        font-weight: 600;
        color: var(--text-muted);
        transition: all var(--transition-base);
        white-space: nowrap;
        position: relative;
    }
    .nav-links a:hover {
        color: var(--text-warm);
        background: rgba(255, 204, 0, 0.08);
    }
    .nav-links a.active {
        color: var(--secondary-bg);
        background: var(--accent-gold);
        box-shadow: 0 4px 14px rgba(255, 204, 0, 0.35);
    }
    .nav-actions {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-shrink: 0;
    }
    .btn-login {
        background: transparent;
        color: var(--text-warm);
        font-weight: 700;
        font-size: 14px;
        padding: 10px 18px;
        border-radius: 9999px;
        transition: all var(--transition-base);
        white-space: nowrap;
    }
    .btn-login:hover {
        background: rgba(255, 255, 255, 0.1);
        color: var(--accent-gold);
    }
    .btn-signup {
        background: linear-gradient(135deg, var(--accent-gold), #E6A800);
        color: var(--secondary-bg);
        font-weight: 800;
        font-size: 14px;
        padding: 10px 22px;
        border-radius: 9999px;
        box-shadow: 0 4px 16px rgba(255, 204, 0, 0.35);
        transition: all var(--transition-base);
        white-space: nowrap;
    }
    .btn-signup:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(255, 204, 0, 0.5);
        background: linear-gradient(135deg, #FFE044, #FFCC00);
        color: var(--secondary-bg);
    }
    .btn-signup:active {
        transform: translateY(0) scale(0.97);
    }
    .nav-toggle {
        display: none;
        background: transparent;
        color: var(--text-warm);
        font-size: 24px;
        padding: 8px;
        border-radius: 8px;
        border: 1px solid var(--border-soft);
        transition: all var(--transition-base);
    }
    .nav-toggle:hover {
        border-color: var(--accent-gold);
        color: var(--accent-gold);
    }
    @media (max-width: 992px) {
        .nav-links {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            background: rgba(6, 35, 21, 0.98);
            flex-direction: column;
            align-items: flex-start;
            padding: 24px;
            gap: 8px;
            border-bottom: 2px solid var(--border-gold);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
            z-index: 999;
        }
        .nav-links.open {
            display: flex;
        }
        .nav-links a {
            width: 100%;
            padding: 14px 18px;
            font-size: 16px;
        }
        .nav-toggle {
            display: block;
        }
    }
    @media (max-width: 480px) {
        .nav-actions .btn-login {
            padding: 8px 14px;
            font-size: 13px;
        }
        .nav-actions .btn-signup {
            padding: 8px 16px;
            font-size: 13px;
        }
        .nav-logo .logo-text {
            font-size: 14px;
            max-width: 130px;
            overflow: hidden;
            text-overflow: ellipsis;
        }
    }
    /* ===== Hero ===== */
    .hero-section {
        min-height: 100vh;
        display: flex;
        align-items: center;
        position: relative;
        padding-top: 100px;
        padding-bottom: 60px;
        background-image: linear-gradient(180deg, rgba(6, 35, 21, 0.75) 0%, rgba(6, 35, 21, 0.88) 45%, rgba(6, 35, 21, 0.96) 100%), url('/assets/images/backpic/back-1.png');
        background-size: cover;
        background-position: center;
        background-repeat: no-repeat;
        isolation: isolate;
    }
    .hero-section::after {
        content: '';
        position: absolute;
        inset: 0;
        background: radial-gradient(ellipse at 70% 30%, rgba(255, 204, 0, 0.12) 0%, transparent 55%), radial-gradient(ellipse at 20% 70%, rgba(50, 205, 50, 0.08) 0%, transparent 50%);
        pointer-events: none;
        z-index: 0;
    }
    .hero-content {
        position: relative;
        z-index: 1;
        display: grid;
        grid-template-columns: 1.1fr 0.9fr;
        gap: 50px;
        align-items: center;
    }
    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(255, 204, 0, 0.12);
        border: 1px solid var(--border-gold);
        color: var(--accent-gold);
        font-weight: 700;
        font-size: 13px;
        padding: 8px 16px;
        border-radius: 9999px;
        margin-bottom: 20px;
        letter-spacing: 0.02em;
        backdrop-filter: blur(8px);
    }
    .hero-badge i {
        font-size: 12px;
        animation: pulse-dot 1.6s ease-in-out infinite;
    }
    @keyframes pulse-dot {
        0%, 100% { opacity: 1; transform: scale(1); }
        50% { opacity: 0.5; transform: scale(0.85); }
    }
    .hero-title {
        font-size: clamp(2.1rem, 4.8vw, 3.6rem);
        font-weight: 900;
        line-height: 1.15;
        letter-spacing: -0.025em;
        color: var(--text-warm);
        margin-bottom: 20px;
    }
    .hero-title .gold-highlight {
        color: var(--accent-gold);
        position: relative;
        white-space: nowrap;
    }
    .hero-title .gold-highlight::after {
        content: '';
        position: absolute;
        left: 0;
        right: 0;
        bottom: -3px;
        height: 5px;
        background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
        border-radius: 9999px;
        opacity: 0.6;
    }
    .hero-desc {
        font-size: 1.05rem;
        line-height: 1.65;
        color: var(--text-muted);
        max-width: 620px;
        margin-bottom: 28px;
    }
    .hero-cta-group {
        display: flex;
        align-items: center;
        gap: 14px;
        flex-wrap: wrap;
        margin-bottom: 28px;
    }
    .btn-primary {
        background: linear-gradient(135deg, var(--accent-gold), #E6A800);
        color: var(--secondary-bg);
        font-weight: 800;
        font-size: 16px;
        padding: 14px 30px;
        border-radius: 9999px;
        box-shadow: 0 6px 25px rgba(255, 204, 0, 0.4);
        transition: all var(--transition-base);
        display: inline-flex;
        align-items: center;
        gap: 10px;
        letter-spacing: 0.01em;
    }
    .btn-primary:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 35px rgba(255, 204, 0, 0.55);
        background: linear-gradient(135deg, #FFE044, #FFCC00);
        color: var(--secondary-bg);
    }
    .btn-primary:active {
        transform: translateY(0) scale(0.97);
    }
    .btn-secondary {
        background: rgba(255, 255, 255, 0.06);
        color: var(--text-warm);
        font-weight: 700;
        font-size: 16px;
        padding: 14px 28px;
        border-radius: 9999px;
        border: 1px solid rgba(255, 255, 255, 0.2);
        transition: all var(--transition-base);
        display: inline-flex;
        align-items: center;
        gap: 10px;
        backdrop-filter: blur(8px);
    }
    .btn-secondary:hover {
        background: rgba(255, 255, 255, 0.1);
        border-color: var(--accent-gold);
        color: var(--accent-gold);
        transform: translateY(-2px);
    }
    .btn-secondary:active {
        transform: translateY(0) scale(0.97);
    }
    .hero-data-badges {
        display: flex;
        align-items: center;
        gap: 12px;
        flex-wrap: wrap;
    }
    .data-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(255, 255, 255, 0.04);
        border: 1px solid rgba(255, 255, 255, 0.1);
        padding: 10px 16px;
        border-radius: 12px;
        font-size: 13px;
        font-weight: 600;
        color: var(--text-muted);
        transition: all var(--transition-base);
    }
    .data-badge i {
        color: var(--accent-lime);
        font-size: 14px;
    }
    .data-badge:hover {
        border-color: var(--border-gold);
        color: var(--text-warm);
        transform: translateY(-2px);
    }
    /* ===== Hero Comparison Panel ===== */
    .hero-comparison {
        position: relative;
        z-index: 1;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .comparison-card {
        background: rgba(255, 255, 255, 0.04);
        border: 1px solid rgba(255, 255, 255, 0.12);
        border-radius: var(--radius-md);
        padding: 18px 20px;
        cursor: pointer;
        transition: all var(--transition-base);
        backdrop-filter: blur(10px);
        display: flex;
        align-items: center;
        gap: 16px;
        position: relative;
    }
    .comparison-card:hover {
        border-color: rgba(255, 255, 255, 0.25);
        background: rgba(255, 255, 255, 0.07);
        transform: translateX(4px);
    }
    .comparison-card.recommended {
        border: 2px solid var(--accent-gold);
        background: rgba(255, 204, 0, 0.08);
        box-shadow: var(--shadow-gold);
        transform: scale(1.03);
        order: -1;
    }
    .comparison-card.recommended:hover {
        transform: scale(1.04) translateX(2px);
        border-color: var(--accent-gold);
    }
    .comparison-card .cc-icon {
        width: 48px;
        height: 48px;
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 22px;
        flex-shrink: 0;
    }
    .comparison-card.recommended .cc-icon {
        background: linear-gradient(135deg, var(--accent-gold), #E6A800);
        color: var(--secondary-bg);
        box-shadow: 0 4px 15px rgba(255, 204, 0, 0.4);
    }
    .comparison-card:not(.recommended) .cc-icon {
        background: rgba(255, 255, 255, 0.08);
        color: var(--text-muted);
    }
    .comparison-card .cc-info {
        flex: 1;
        min-width: 0;
    }
    .comparison-card .cc-info h4 {
        font-size: 15px;
        font-weight: 700;
        color: var(--text-warm);
        margin-bottom: 2px;
        display: flex;
        align-items: center;
        gap: 8px;
        flex-wrap: wrap;
    }
    .comparison-card .cc-info p {
        font-size: 13px;
        color: var(--text-subtle);
        line-height: 1.4;
    }
    .cc-badge {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        background: linear-gradient(135deg, var(--accent-lime), #28A428);
        color: #fff;
        font-size: 11px;
        font-weight: 800;
        padding: 3px 10px;
        border-radius: 9999px;
        letter-spacing: 0.03em;
        text-transform: uppercase;
    }
    .cc-check {
        font-size: 18px;
        color: var(--accent-lime);
        flex-shrink: 0;
    }
    @media (max-width: 992px) {
        .hero-content {
            grid-template-columns: 1fr;
            gap: 40px;
        }
        .hero-comparison {
            max-width: 520px;
        }
        .comparison-card.recommended {
            order: 0;
        }
    }
    @media (max-width: 520px) {
        .hero-title {
            font-size: 1.7rem;
        }
        .hero-title .gold-highlight {
            white-space: normal;
        }
        .hero-desc {
            font-size: 0.95rem;
        }
        .btn-primary, .btn-secondary {
            width: 100%;
            justify-content: center;
        }
        .comparison-card {
            padding: 14px 16px;
            gap: 12px;
        }
        .comparison-card .cc-icon {
            width: 40px;
            height: 40px;
            font-size: 18px;
            border-radius: 10px;
        }
    }
    /* ===== Section Base ===== */
    main section {
        padding: var(--spacing-section) 0;
        position: relative;
    }
    .section-alt {
        background: var(--secondary-bg);
    }
    .section-label {
        display: inline-block;
        background: rgba(255, 204, 0, 0.12);
        border: 1px solid var(--border-gold);
        color: var(--accent-gold);
        font-weight: 700;
        font-size: 12px;
        text-transform: uppercase;
        letter-spacing: 0.08em;
        padding: 7px 18px;
        border-radius: 9999px;
        margin-bottom: 14px;
    }
    .section-title {
        font-size: clamp(1.6rem, 3.5vw, 2.5rem);
        font-weight: 900;
        line-height: 1.2;
        letter-spacing: -0.02em;
        color: var(--text-warm);
        margin-bottom: 14px;
    }
    .section-desc {
        font-size: 1.02rem;
        line-height: 1.65;
        color: var(--text-muted);
        max-width: 680px;
        margin-bottom: 36px;
    }
    .section-title.left, .section-desc.left {
        text-align: left;
    }
    @media (max-width: 768px) {
        main section {
            padding: 3rem 0;
        }
        .section-desc {
            font-size: 0.95rem;
        }
    }
    /* ===== Comparison Table ===== */
    .compare-table-wrap {
        background: rgba(255, 255, 255, 0.03);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-card);
    }
    .compare-table {
        width: 100%;
        border-collapse: collapse;
        font-size: 14px;
    }
    .compare-table thead th {
        background: rgba(255, 204, 0, 0.08);
        padding: 18px 20px;
        text-align: left;
        font-weight: 800;
        color: var(--text-warm);
        border-bottom: 2px solid var(--border-gold);
        font-size: 15px;
        white-space: nowrap;
    }
    .compare-table thead th:first-child {
        width: 34%;
    }
    .compare-table thead th.highlight-col {
        background: rgba(255, 204, 0, 0.14);
        color: var(--accent-gold);
    }
    .compare-table tbody td {
        padding: 16px 20px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        color: var(--text-muted);
        vertical-align: middle;
    }
    .compare-table tbody tr:hover td {
        background: rgba(255, 255, 255, 0.03);
    }
    .compare-table tbody td:first-child {
        font-weight: 600;
        color: var(--text-warm);
    }
    .compare-table tbody td.highlight-col {
        background: rgba(255, 204, 0, 0.06);
    }
    .table-icon-yes {
        color: var(--accent-lime);
        font-size: 18px;
    }
    .table-icon-no {
        color: #E74C3C;
        font-size: 18px;
    }
    .table-icon-partial {
        color: #F39C12;
        font-size: 18px;
    }
    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    @media (max-width: 768px) {
        .compare-table {
            font-size: 12px;
        }
        .compare-table thead th {
            padding: 12px 14px;
            font-size: 13px;
        }
        .compare-table tbody td {
            padding: 12px 14px;
        }
    }
    /* ===== Selling Points ===== */
    .points-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    .point-card {
        background: linear-gradient(145deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: var(--radius-md);
        padding: 28px 24px;
        transition: all var(--transition-base);
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
        position: relative;
        overflow: hidden;
    }
    .point-card::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: linear-gradient(90deg, var(--accent-gold), transparent);
        opacity: 0;
        transition: opacity var(--transition-base);
    }
    .point-card:hover {
        transform: translateY(-6px);
        border-color: var(--border-gold);
        box-shadow: var(--shadow-gold);
    }
    .point-card:hover::after {
        opacity: 1;
    }
    .point-icon {
        width: 56px;
        height: 56px;
        border-radius: 16px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 26px;
        margin-bottom: 18px;
        background: linear-gradient(135deg, rgba(255, 204, 0, 0.18), rgba(255, 204, 0, 0.06));
        color: var(--accent-gold);
        border: 1px solid var(--border-soft);
        transition: all var(--transition-base);
    }
    .point-card:nth-child(2) .point-icon {
        background: linear-gradient(135deg, rgba(50, 205, 50, 0.18), rgba(50, 205, 50, 0.06));
        color: var(--accent-lime);
        border-color: rgba(50, 205, 50, 0.3);
    }
    .point-card:nth-child(3) .point-icon {
        background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(0, 240, 255, 0.04));
        color: #5CECFF;
        border-color: rgba(0, 240, 255, 0.25);
    }
    .point-card:hover .point-icon {
        transform: scale(1.1);
    }
    .point-card h3 {
        font-size: 18px;
        font-weight: 800;
        color: var(--text-warm);
        margin-bottom: 8px;
        letter-spacing: -0.01em;
    }
    .point-card p {
        font-size: 14px;
        line-height: 1.6;
        color: var(--text-subtle);
    }
    @media (max-width: 992px) {
        .points-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
    }
    @media (max-width: 640px) {
        .points-grid {
            grid-template-columns: 1fr;
        }
        .point-card {
            padding: 22px 18px;
        }
    }
    /* ===== Packages ===== */
    .packages-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
        align-items: stretch;
    }
    .package-card {
        background: rgba(255, 255, 255, 0.04);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: var(--radius-lg);
        padding: 32px 26px;
        display: flex;
        flex-direction: column;
        transition: all var(--transition-base);
        position: relative;
    }
    .package-card:hover {
        border-color: rgba(255, 255, 255, 0.2);
        transform: translateY(-4px);
        box-shadow: var(--shadow-card);
    }
    .package-card.recommended {
        border: 2px solid var(--accent-gold);
        background: linear-gradient(160deg, rgba(255, 204, 0, 0.1) 0%, rgba(255, 204, 0, 0.02) 100%);
        box-shadow: var(--shadow-gold);
        position: relative;
        z-index: 1;
    }
    .package-card.recommended::before {
        content: 'KHƯYẾN DÙNG';
        position: absolute;
        top: -14px;
        left: 50%;
        transform: translateX(-50%);
        background: linear-gradient(135deg, var(--accent-gold), #E6A800);
        color: var(--secondary-bg);
        font-size: 11px;
        font-weight: 800;
        letter-spacing: 0.04em;
        padding: 5px 16px;
        border-radius: 9999px;
        box-shadow: 0 4px 12px rgba(255, 204, 0, 0.4);
        white-space: nowrap;
    }
    .package-card .pkg-name {
        font-size: 15px;
        font-weight: 700;
        color: var(--text-muted);
        text-transform: uppercase;
        letter-spacing: 0.06em;
        margin-bottom: 12px;
    }
    .package-card .pkg-price {
        font-size: 2rem;
        font-weight: 900;
        color: var(--text-warm);
        margin-bottom: 4px;
        letter-spacing: -0.02em;
    }
    .package-card .pkg-price span {
        font-size: 14px;
        font-weight: 600;
        color: var(--text-subtle);
    }
    .package-card .pkg-tagline {
        font-size: 13px;
        color: var(--text-subtle);
        margin-bottom: 20px;
        padding-bottom: 20px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .package-card .pkg-features {
        list-style: none;
        margin-bottom: 24px;
        flex: 1;
    }
    .package-card .pkg-features li {
        font-size: 14px;
        color: var(--text-muted);
        padding: 6px 0;
        display: flex;
        align-items: center;
        gap: 10px;
        line-height: 1.4;
    }
    .package-card .pkg-features li i {
        color: var(--accent-lime);
        font-size: 14px;
        flex-shrink: 0;
    }
    .package-card .pkg-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 13px 20px;
        border-radius: 9999px;
        font-weight: 700;
        font-size: 14px;
        transition: all var(--transition-base);
        border: 1px solid rgba(255, 255, 255, 0.2);
        color: var(--text-warm);
        background: rgba(255, 255, 255, 0.04);
        width: 100%;
    }
    .package-card .pkg-btn:hover {
        border-color: var(--accent-gold);
        color: var(--accent-gold);
        background: rgba(255, 204, 0, 0.08);
    }
    .package-card.recommended .pkg-btn {
        background: linear-gradient(135deg, var(--accent-gold), #E6A800);
        color: var(--secondary-bg);
        border: none;
        font-weight: 800;
        box-shadow: 0 4px 16px rgba(255, 204, 0, 0.35);
    }
    .package-card.recommended .pkg-btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(255, 204, 0, 0.5);
        background: linear-gradient(135deg, #FFE044, #FFCC00);
        color: var(--secondary-bg);
    }
    .package-card .pkg-price.free {
        color: var(--accent-lime);
    }
    @media (max-width: 992px) {
        .packages-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .package-card.recommended {
            grid-column: span 2;
        }
    }
    @media (max-width: 640px) {
        .packages-grid {
            grid-template-columns: 1fr;
        }
        .package-card.recommended {
            grid-column: span 1;
        }
        .package-card {
            padding: 26px 20px;
        }
    }
    /* ===== Price Comparison ===== */
    .price-compare {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }
    .pc-card {
        border-radius: var(--radius-lg);
        padding: 32px 28px;
        border: 1px solid rgba(255, 255, 255, 0.1);
        background: rgba(255, 255, 255, 0.03);
        transition: all var(--transition-base);
    }
    .pc-card:hover {
        border-color: rgba(255, 255, 255, 0.2);
        box-shadow: var(--shadow-card);
    }
    .pc-card.pc-regular {
        border-color: rgba(255, 255, 255, 0.08);
    }
    .pc-card.pc-mod {
        border: 2px solid var(--accent-gold);
        background: linear-gradient(160deg, rgba(255, 204, 0, 0.08) 0%, rgba(255, 204, 0, 0.01) 100%);
        box-shadow: var(--shadow-gold);
        position: relative;
    }
    .pc-card .pc-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        margin-bottom: 20px;
        flex-wrap: wrap;
    }
    .pc-card .pc-header h3 {
        font-size: 18px;
        font-weight: 800;
        color: var(--text-warm);
    }
    .pc-tag {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid rgba(255, 255, 255, 0.15);
        color: var(--text-muted);
        font-size: 11px;
        font-weight: 700;
        padding: 4px 12px;
        border-radius: 9999px;
    }
    .pc-card.pc-mod .pc-tag {
        background: rgba(255, 204, 0, 0.12);
        border-color: var(--border-gold);
        color: var(--accent-gold);
    }
    .pc-list {
        list-style: none;
        margin-bottom: 20px;
    }
    .pc-list li {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 10px 0;
        font-size: 14px;
        color: var(--text-muted);
        border-bottom: 1px dashed rgba(255, 255, 255, 0.08);
        line-height: 1.45;
    }
    .pc-list li:last-child {
        border-bottom: none;
    }
    .pc-list li i {
        flex-shrink: 0;
        width: 20px;
        text-align: center;
    }
    .pc-list li i.fa-circle-check {
        color: var(--accent-lime);
    }
    .pc-list li i.fa-circle-xmark {
        color: #E74C3C;
    }
    .pc-result {
        background: rgba(255, 255, 255, 0.04);
        border-radius: var(--radius-sm);
        padding: 16px 20px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        flex-wrap: wrap;
    }
    .pc-result .pc-save {
        font-size: 15px;
        font-weight: 800;
        color: var(--accent-gold);
    }
    .pc-result .pc-save-num {
        font-size: 22px;
        font-weight: 900;
        color: var(--accent-lime);
    }
    @media (max-width: 768px) {
        .price-compare {
            grid-template-columns: 1fr;
            gap: 18px;
        }
        .pc-card {
            padding: 24px 20px;
        }
    }
    /* ===== News / CMS ===== */
    .news-layout {
        display: grid;
        grid-template-columns: 1.4fr 0.6fr;
        gap: 36px;
        align-items: start;
    }
    .news-list {
        display: flex;
        flex-direction: column;
        gap: 14px;
    }
    .news-item {
        display: block;
        background: rgba(255, 255, 255, 0.03);
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: var(--radius-sm);
        padding: 20px 22px;
        transition: all var(--transition-base);
        position: relative;
        overflow: hidden;
    }
    .news-item::before {
        content: '';
        position: absolute;
        left: 0;
        top: 0;
        bottom: 0;
        width: 3px;
        background: var(--accent-gold);
        opacity: 0;
        transition: opacity var(--transition-base);
    }
    .news-item:hover {
        border-color: var(--border-gold);
        background: rgba(255, 204, 0, 0.05);
        transform: translateX(4px);
        box-shadow: var(--shadow-gold);
        color: inherit;
    }
    .news-item:hover::before {
        opacity: 1;
    }
    .news-meta {
        display: flex;
        align-items: center;
        gap: 12px;
        margin-bottom: 8px;
        flex-wrap: wrap;
    }
    .news-category {
        background: rgba(50, 205, 50, 0.12);
        color: var(--accent-lime);
        font-size: 12px;
        font-weight: 700;
        padding: 3px 12px;
        border-radius: 9999px;
        letter-spacing: 0.03em;
        text-transform: uppercase;
    }
    .news-date {
        font-size: 12px;
        color: var(--text-subtle);
    }
    .news-item h3 {
        font-size: 17px;
        font-weight: 800;
        color: var(--text-warm);
        margin-bottom: 6px;
        letter-spacing: -0.01em;
        line-height: 1.4;
    }
    .news-item .news-excerpt {
        font-size: 14px;
        color: var(--text-subtle);
        line-height: 1.6;
    }
    .news-sidebar {
        background: rgba(255, 255, 255, 0.03);
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: var(--radius-md);
        padding: 28px 24px;
        position: sticky;
        top: 100px;
    }
    .news-sidebar h4 {
        font-size: 16px;
        font-weight: 800;
        color: var(--text-warm);
        margin-bottom: 16px;
        padding-bottom: 12px;
        border-bottom: 2px solid var(--border-gold);
        letter-spacing: -0.01em;
    }
    .news-sidebar ul {
        list-style: none;
    }
    .news-sidebar ul li {
        padding: 10px 0;
        border-bottom: 1px dashed rgba(255, 255, 255, 0.07);
        font-size: 14px;
        color: var(--text-muted);
        display: flex;
        align-items: flex-start;
        gap: 10px;
        line-height: 1.5;
    }
    .news-sidebar ul li:last-child {
        border-bottom: none;
    }
    .news-sidebar ul li i {
        color: var(--accent-gold);
        font-size: 12px;
        margin-top: 4px;
        flex-shrink: 0;
    }
    .empty-state {
        text-align: center;
        padding: 40px 20px;
        color: var(--text-subtle);
        font-size: 15px;
        background: rgba(255, 255, 255, 0.03);
        border: 1px dashed rgba(255, 255, 255, 0.15);
        border-radius: var(--radius-md);
    }
    @media (max-width: 992px) {
        .news-layout {
            grid-template-columns: 1fr;
            gap: 24px;
        }
        .news-sidebar {
            position: static;
        }
    }
    @media (max-width: 640px) {
        .news-item {
            padding: 16px 18px;
        }
        .news-item h3 {
            font-size: 15px;
        }
    }
    /* ===== Brand Story ===== */
    .brand-band {
        background-image: linear-gradient(180deg, rgba(6, 35, 21, 0.85) 0%, rgba(6, 35, 21, 0.92) 100%), url('/assets/images/backpic/back-2.jpg');
        background-size: cover;
        background-position: center;
        background-attachment: fixed;
        border-radius: var(--radius-lg);
        padding: 60px 50px;
        border: 1px solid var(--border-soft);
        position: relative;
        overflow: hidden;
    }
    .brand-band::after {
        content: '';
        position: absolute;
        inset: 0;
        background: radial-gradient(ellipse at 80% 20%, rgba(255, 204, 0, 0.1) 0%, transparent 55%);
        pointer-events: none;
    }
    .brand-band .brand-content {
        position: relative;
        z-index: 1;
        max-width: 640px;
    }
    .brand-band h2 {
        font-size: clamp(1.5rem, 3vw, 2.2rem);
        font-weight: 900;
        color: var(--text-warm);
        margin-bottom: 16px;
        letter-spacing: -0.02em;
        line-height: 1.25;
    }
    .brand-band p {
        font-size: 1rem;
        line-height: 1.7;
        color: var(--text-muted);
        margin-bottom: 20px;
    }
    .brand-band .brand-values {
        display: flex;
        flex-wrap: wrap;
        gap: 14px;
        margin-bottom: 24px;
    }
    .brand-values span {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid rgba(255, 255, 255, 0.12);
        color: var(--text-muted);
        font-size: 13px;
        font-weight: 600;
        padding: 8px 16px;
        border-radius: 9999px;
        transition: all var(--transition-base);
    }
    .brand-values span:hover {
        border-color: var(--accent-gold);
        color: var(--accent-gold);
        transform: translateY(-2px);
    }
    .brand-values span i {
        color: var(--accent-lime);
    }
    @media (max-width: 768px) {
        .brand-band {
            padding: 36px 24px;
            background-attachment: scroll;
        }
    }
    /* ===== CTA ===== */
    .cta-section {
        background: linear-gradient(135deg, var(--secondary-bg) 0%, var(--deep-ocean) 50%, var(--primary-bg) 100%);
        border-bottom: 1px solid rgba(255, 204, 0, 0.15);
        border-top: 1px solid rgba(255, 204, 0, 0.15);
    }
    .cta-box {
        text-align: center;
        max-width: 720px;
        margin: 0 auto;
    }
    .cta-box h2 {
        font-size: clamp(1.5rem, 3.5vw, 2.3rem);
        font-weight: 900;
        color: var(--text-warm);
        margin-bottom: 14px;
        letter-spacing: -0.02em;
        line-height: 1.25;
    }
    .cta-box p {
        font-size: 1.02rem;
        color: var(--text-muted);
        margin-bottom: 28px;
        line-height: 1.65;
    }
    .cta-box .btn-primary {
        font-size: 17px;
        padding: 16px 36px;
    }
    .cta-trust-row {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 20px;
        margin-top: 22px;
        flex-wrap: wrap;
    }
    .cta-trust-row span {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 13px;
        color: var(--text-subtle);
        font-weight: 600;
    }
    .cta-trust-row span i {
        color: var(--accent-lime);
    }
    /* ===== FAQ ===== */
    .faq-list {
        max-width: 820px;
        margin: 0 auto;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .faq-item {
        background: rgba(255, 255, 255, 0.03);
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: var(--radius-sm);
        overflow: hidden;
        transition: all var(--transition-base);
    }
    .faq-item:hover {
        border-color: rgba(255, 255, 255, 0.18);
    }
    .faq-item.active {
        border-color: var(--border-gold);
        box-shadow: var(--shadow-gold);
    }
    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 20px 22px;
        cursor: pointer;
        background: transparent;
        width: 100%;
        text-align: left;
        color: var(--text-warm);
        font-weight: 700;
        font-size: 15px;
        transition: all var(--transition-base);
        line-height: 1.4;
        letter-spacing: -0.01em;
    }
    .faq-question:hover {
        color: var(--accent-gold);
    }
    .faq-icon {
        flex-shrink: 0;
        width: 32px;
        height: 32px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(255, 255, 255, 0.06);
        color: var(--accent-gold);
        font-size: 14px;
        transition: all var(--transition-base);
    }
    .faq-item.active .faq-icon {
        background: var(--accent-gold);
        color: var(--secondary-bg);
        transform: rotate(180deg);
    }
    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.45s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
        padding: 0 22px;
    }
    .faq-item.active .faq-answer {
        max-height: 500px;
        padding: 0 22px 20px;
    }
    .faq-answer p {
        font-size: 14px;
        line-height: 1.7;
        color: var(--text-muted);
    }
    @media (max-width: 640px) {
        .faq-question {
            padding: 16px 18px;
            font-size: 14px;
        }
        .faq-answer {
            padding: 0 18px;
        }
        .faq-item.active .faq-answer {
            padding: 0 18px 16px;
        }
    }
    /* ===== Footer ===== */
    .site-footer {
        background: var(--secondary-bg);
        border-top: 2px solid var(--border-gold);
        padding: 50px 0 30px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.5fr 1fr 1fr 1fr;
        gap: 36px;
        margin-bottom: 36px;
    }
    .footer-brand .logo-text {
        font-weight: 800;
        font-size: 18px;
        color: var(--text-warm);
        margin-bottom: 12px;
        line-height: 1.3;
    }
    .footer-brand p {
        font-size: 13px;
        color: var(--text-subtle);
        line-height: 1.6;
        max-width: 300px;
    }
    .footer-col h4 {
        font-size: 14px;
        font-weight: 800;
        color: var(--text-warm);
        text-transform: uppercase;
        letter-spacing: 0.06em;
        margin-bottom: 16px;
    }
    .footer-col ul {
        list-style: none;
    }
    .footer-col ul li {
        margin-bottom: 8px;
    }
    .footer-col ul li a {
        font-size: 13px;
        color: var(--text-muted);
        transition: all var(--transition-base);
    }
    .footer-col ul li a:hover {
        color: var(--accent-gold);
        padding-left: 4px;
    }
    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        padding-top: 24px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        flex-wrap: wrap;
    }
    .footer-bottom p {
        font-size: 12px;
        color: var(--text-subtle);
        line-height: 1.5;
    }
    .footer-bottom .trust-badges {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-wrap: wrap;
    }
    .trust-badge {
        display: inline-flex;
        align-items: center;
        gap: 5px;
        font-size: 11px;
        color: var(--text-subtle);
        background: rgba(255, 255, 255, 0.04);
        border: 1px solid rgba(255, 255, 255, 0.1);
        padding: 5px 12px;
        border-radius: 9999px;
        font-weight: 600;
    }
    .trust-badge i {
        color: var(--accent-lime);
        font-size: 12px;
    }
    @media (max-width: 992px) {
        .footer-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
    }
    @media (max-width: 640px) {
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 24px;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }
    }
    /* ===== Bottom Fixed Conversion Bar ===== */
    .bottom-bar {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 900;
        background: rgba(6, 35, 21, 0.94);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-top: 1px solid var(--border-gold);
        padding: 12px 20px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        box-shadow: 0 -6px 30px rgba(0, 0, 0, 0.3);
        transform: translateY(100%);
        transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .bottom-bar.visible {
        transform: translateY(0);
    }
    .bottom-bar-info {
        display: flex;
        align-items: center;
        gap: 12px;
        flex: 1;
        min-width: 0;
    }
    .bottom-bar-info .bbi-icon {
        width: 42px;
        height: 42px;
        border-radius: 12px;
        background: linear-gradient(135deg, var(--accent-gold), #E6A800);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
        color: var(--secondary-bg);
        flex-shrink: 0;
        box-shadow: 0 4px 14px rgba(255, 204, 0, 0.4);
    }
    .bottom-bar-info .bbi-text {
        font-size: 14px;
        font-weight: 700;
        color: var(--text-warm);
        line-height: 1.3;
    }
    .bottom-bar-info .bbi-text span {
        display: block;
        font-size: 12px;
        font-weight: 500;
        color: var(--text-subtle);
    }
    .bottom-bar .btn-primary {
        padding: 12px 24px;
        font-size: 14px;
        white-space: nowrap;
    }
    @media (max-width: 640px) {
        .bottom-bar {
            padding: 10px 14px;
            gap: 10px;
        }
        .bottom-bar .bbi-icon {
            width: 36px;
            height: 36px;
            font-size: 16px;
            border-radius: 10px;
        }
        .bottom-bar-info .bbi-text {
            font-size: 12px;
        }
        .bottom-bar-info .bbi-text span {
            font-size: 10px;
        }
        .bottom-bar .btn-primary {
            padding: 10px 16px;
            font-size: 12px;
        }
    }
    /* ===== FAB ===== */
    .fab-support {
        position: fixed;
        left: 16px;
        bottom: 96px;
        z-index: 850;
        width: 56px;
        height: 56px;
        border-radius: 50%;
        background: linear-gradient(145deg, #1A1A1A 0%, #0D0D0D 100%);
        border: 3px solid var(--accent-gold);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 22px;
        color: var(--accent-gold);
        cursor: pointer;
        box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
        transition: all var(--transition-base);
        opacity: 0.7;
        animation: fab-float 3.2s ease-in-out infinite;
        text-decoration: none;
    }
    .fab-support:hover {
        opacity: 1;
        transform: scale(1.1);
        box-shadow: 0 8px 30px rgba(255, 215, 0, 0.5);
        color: var(--accent-gold);
    }
    .fab-support:active {
        transform: scale(0.95) translateY(2px);
    }
    .fab-support::after {
        content: '';
        position: absolute;
        top: 3px;
        right: 3px;
        width: 12px;
        height: 12px;
        border-radius: 50%;
        background: #E74C3C;
        border: 2px solid #1A1A1A;
        animation: fab-blink 1.8s ease-in-out infinite;
    }
    @keyframes fab-float {
        0%, 100% { transform: translateY(0); }
        50% { transform: translateY(-8px); }
    }
    @keyframes fab-blink {
        0%, 100% { opacity: 1; }
        50% { opacity: 0.35; }
    }
    @media (max-width: 640px) {
        .fab-support {
            width: 48px;
            height: 48px;
            font-size: 18px;
            left: 12px;
            bottom: 80px;
        }
    }
    /* ===== Utility ===== */
    .text-gold { color: var(--accent-gold); }
    .text-lime { color: var(--accent-lime); }
    .mt-0 { margin-top: 0; }
    .mb-0 { margin-bottom: 0; }

/* roulang page: article */
:root {
            --bg-deep: #062315;
            --bg-dark: #0B3C25;
            --bg-ocean: #0A2A3A;
            --bg-card: rgba(11, 60, 37, .82);
            --bg-card-hover: rgba(18, 74, 46, .92);
            --accent-gold: #FFCC00;
            --accent-gold-soft: rgba(255, 204, 0, .25);
            --accent-lime: #32CD32;
            --accent-orange: #FF8C42;
            --accent-cyan: #4DD8E6;
            --text-white: #FFFDF0;
            --text-mint: #C5E2D2;
            --text-muted: #8FB5A5;
            --text-dark: #1D2B22;
            --border-gold: rgba(255, 204, 0, .38);
            --border-mint: rgba(197, 226, 210, .18);
            --shadow-gold: 0 10px 40px rgba(255, 204, 0, .16);
            --shadow-card: 0 8px 30px rgba(0, 0, 0, .25);
            --shadow-glow: 0 0 24px rgba(50, 205, 50, .28);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --radius-full: 9999px;
            --font-display: 'Be Vietnam Pro', 'Segoe UI', Tahoma, sans-serif;
            --font-body: 'Inter', 'Segoe UI', Tahoma, sans-serif;
            --transition-base: all .25s ease;
            --transition-slow: all .4s cubic-bezier(.4, 0, .2, 1);
            --section-pad: clamp(4rem, 8vw, 7rem);
        }

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

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

        body {
            font-family: var(--font-body);
            background-color: var(--bg-deep);
            color: var(--text-white);
            line-height: 1.65;
            overflow-x: hidden;
            background-image: radial-gradient(ellipse at 20% 10%, rgba(50, 205, 50, .07) 0%, transparent 55%),
                              radial-gradient(ellipse at 80% 30%, rgba(10, 42, 58, .9) 0%, transparent 60%),
                              radial-gradient(ellipse at 50% 70%, rgba(11, 60, 37, .6) 0%, transparent 70%);
            background-attachment: fixed;
        }

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

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

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            transition: var(--transition-base);
        }

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

        /* === Container === */
        .container {
            width: min(1200px, 92%);
            margin: 0 auto;
            padding: 0 16px;
        }

        @media (min-width: 768px) {
            .container {
                padding: 0 24px;
            }
        }

        /* === Header === */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 120;
            background: rgba(6, 35, 21, .88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-mint);
            transition: var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(6, 35, 21, .96);
            box-shadow: 0 6px 24px rgba(0, 0, 0, .35);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            height: 70px;
        }

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

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--accent-gold), #E6A800);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-deep);
            font-size: 18px;
            box-shadow: 0 4px 18px rgba(255, 204, 0, .35);
        }

        .logo-text {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 1.15rem;
            letter-spacing: .02em;
            color: var(--text-white);
            line-height: 1.2;
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--accent-gold);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 1;
            overflow-x: auto;
            scrollbar-width: none;
        }

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

        .nav-links a {
            font-size: .88rem;
            font-weight: 600;
            color: var(--text-muted);
            padding: 10px 16px;
            border-radius: var(--radius-full);
            white-space: nowrap;
            transition: var(--transition-base);
        }

        .nav-links a:hover {
            color: var(--text-white);
            background: rgba(255, 204, 0, .08);
        }

        .nav-links a.active {
            color: var(--bg-deep);
            background: var(--accent-gold);
            font-weight: 700;
            box-shadow: 0 4px 18px rgba(255, 204, 0, .3);
        }

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

        .btn-login,
        .btn-signup {
            padding: 10px 18px;
            border-radius: var(--radius-full);
            font-size: .85rem;
            font-weight: 600;
            transition: var(--transition-base);
        }

        .btn-login {
            background: transparent;
            color: var(--text-white);
            border: 1px solid var(--border-mint);
        }
        .btn-login:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(255, 204, 0, .06);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-gold), #E6A800);
            color: var(--bg-deep);
            box-shadow: 0 4px 20px rgba(255, 204, 0, .35);
        }
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 204, 0, .5);
        }
        .btn-signup:active {
            transform: translateY(0);
            box-shadow: 0 4px 14px rgba(255, 204, 0, .3);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            color: var(--text-white);
            font-size: 1.4rem;
            padding: 8px;
            border-radius: 10px;
            border: 1px solid var(--border-mint);
            transition: var(--transition-base);
        }
        .nav-toggle:hover {
            color: var(--accent-gold);
            border-color: var(--accent-gold);
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                flex-direction: column;
                background: rgba(6, 35, 21, .98);
                padding: 20px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--border-mint);
                box-shadow: 0 20px 40px rgba(0, 0, 0, .4);
                align-items: stretch;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 14px 18px;
                font-size: 1rem;
                border-radius: var(--radius-md);
            }
            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .nav-actions {
                gap: 6px;
                margin-left: auto;
            }
            .btn-login,
            .btn-signup {
                padding: 8px 12px;
                font-size: .78rem;
                white-space: nowrap;
            }
            .logo-text {
                font-size: .95rem;
            }
        }

        /* === Hero Article === */
        .article-hero {
            padding-top: 120px;
            padding-bottom: 32px;
            position: relative;
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 620px;
            background: url('/assets/images/backpic/back-1.png') center top / cover no-repeat;
            opacity: .28;
            z-index: -1;
            mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .9), transparent 90%);
            -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .9), transparent 90%);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: .84rem;
            color: var(--text-muted);
            margin-bottom: 22px;
        }
        .breadcrumb a {
            color: var(--text-mint);
            transition: var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--accent-gold);
        }
        .breadcrumb i {
            font-size: .65rem;
            color: var(--accent-gold);
        }

        .article-hero-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 32px;
            align-items: start;
        }

        .hero-main-content {
            text-align: center;
            max-width: 860px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: var(--radius-full);
            background: rgba(255, 204, 0, .1);
            border: 1px solid var(--border-gold);
            font-size: .8rem;
            font-weight: 700;
            color: var(--accent-gold);
            letter-spacing: .02em;
            margin-bottom: 20px;
        }
        .hero-badge i {
            font-size: .9rem;
        }

        .hero-main-content h1 {
            font-family: var(--font-display);
            font-size: clamp(1.7rem, 4.5vw, 3rem);
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -.01em;
        }

        .hero-summary {
            font-size: clamp(1rem, 1.8vw, 1.15rem);
            color: var(--text-mint);
            max-width: 700px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 20px;
            margin-top: 24px;
            font-size: .88rem;
            color: var(--text-muted);
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }
        .article-meta i {
            color: var(--accent-gold);
            font-size: .9rem;
        }

        /* Hero screenshot stage */
        .hero-stage {
            position: relative;
            margin-top: 40px;
            display: grid;
            grid-template-columns: 1fr;
            align-items: center;
            gap: 24px;
        }

        .stage-left-value,
        .stage-right-value {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .value-chip {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 18px;
            border-radius: var(--radius-md);
            background: var(--bg-card);
            border: 1px solid var(--border-mint);
            transition: var(--transition-base);
        }
        .value-chip:hover {
            border-color: var(--accent-gold);
            background: var(--bg-card-hover);
            transform: translateY(-2px);
        }
        .value-chip i {
            font-size: 1.1rem;
            color: var(--accent-gold);
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(255, 204, 0, .1);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .value-chip strong {
            font-size: .84rem;
            color: var(--text-white);
            font-weight: 700;
            display: block;
            line-height: 1.3;
        }
        .value-chip small {
            font-size: .74rem;
            color: var(--text-muted);
            display: block;
        }

        .stage-image-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 2px solid var(--border-gold);
            box-shadow: var(--shadow-gold), var(--shadow-card);
            background: var(--bg-ocean);
            transition: var(--transition-slow);
        }
        .stage-image-wrap:hover {
            box-shadow: var(--shadow-glow), var(--shadow-gold);
            transform: translateY(-4px);
        }
        .stage-image-wrap img {
            width: 100%;
            height: auto;
            max-height: 440px;
            object-fit: cover;
        }
        .stage-image-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 24px;
            color: var(--text-white);
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 12px;
            background: linear-gradient(to top, rgba(6, 35, 21, .92), transparent);
        }
        .stage-image-overlay .overlay-title {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-white);
        }
        .stage-image-overlay .overlay-tag {
            background: var(--accent-gold);
            color: var(--bg-deep);
            padding: 6px 14px;
            border-radius: var(--radius-full);
            font-size: .78rem;
            font-weight: 700;
            white-space: nowrap;
        }

        .hero-download-buttons {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 14px;
            margin-top: 32px;
        }

        .btn-download {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            padding: 16px 28px;
            border-radius: 16px;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition-base);
        }
        .btn-download i {
            font-size: 1.3rem;
        }
        .btn-download-android {
            background: linear-gradient(135deg, #32CD32, #1E8A1E);
            color: #fff;
            box-shadow: 0 6px 26px rgba(50, 205, 50, .4);
        }
        .btn-download-android:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(50, 205, 50, .55);
        }
        .btn-download-ios {
            background: linear-gradient(135deg, #4DD8E6, #1E90B0);
            color: #fff;
            box-shadow: 0 6px 26px rgba(77, 216, 230, .35);
        }
        .btn-download-ios:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(77, 216, 230, .5);
        }
        .btn-download i {
            font-size: 1.4rem;
        }

        @media (min-width: 1024px) {
            .hero-stage {
                grid-template-columns: 1fr 1.8fr 1fr;
            }
            .stage-left-value {
                justify-self: end;
            }
            .stage-right-value {
                justify-self: start;
            }
        }

        @media (max-width: 1023px) {
            .hero-stage {
                grid-template-columns: 1fr;
            }
            .stage-left-value,
            .stage-right-value {
                flex-direction: row;
                flex-wrap: wrap;
                justify-content: center;
            }
            .stage-image-wrap img {
                max-height: 380px;
            }
        }

        @media (max-width: 640px) {
            .value-chip {
                width: 100%;
            }
            .hero-download-buttons {
                flex-direction: column;
                gap: 12px;
            }
            .btn-download {
                width: 100%;
                justify-content: center;
            }
        }

        /* === Article Content === */
        .article-content-section {
            padding: 40px 0 56px;
        }
        .article-main-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 36px;
            max-width: 820px;
            margin: 0 auto;
        }
        .article-body {
            background: var(--bg-card);
            border: 1px solid var(--border-mint);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            color: var(--text-mint);
            line-height: 1.75;
        }
        .article-body h2,
        .article-body h3 {
            font-family: var(--font-display);
            color: var(--text-white);
            margin: 28px 0 14px;
            font-weight: 700;
            line-height: 1.3;
        }
        .article-body h2 {
            font-size: 1.5rem;
        }
        .article-body h3 {
            font-size: 1.2rem;
        }
        .article-body p {
            margin-bottom: 16px;
        }
        .article-body ul,
        .article-body ol {
            margin: 12px 0 16px 22px;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body img {
            border-radius: var(--radius-md);
            margin: 20px 0;
            border: 1px solid var(--border-mint);
        }
        .article-body a {
            color: var(--accent-gold);
            font-weight: 600;
        }
        .article-body a:hover {
            text-decoration: underline;
        }
        .article-not-found {
            text-align: center;
            padding: 60px 24px;
            background: var(--bg-card);
            border: 1px dashed var(--border-gold);
            border-radius: var(--radius-lg);
        }
        .article-not-found h2 {
            font-size: 1.6rem;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .btn-home-return {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-full);
            background: var(--accent-gold);
            color: var(--bg-deep);
            font-weight: 700;
            font-size: .95rem;
            transition: var(--transition-base);
        }
        .btn-home-return:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold);
        }

        /* === Specs Table === */
        .specs-section {
            padding: 48px 0;
            background: rgba(10, 42, 58, .5);
            border-top: 1px solid var(--border-mint);
            border-bottom: 1px solid var(--border-mint);
        }
        .section-heading {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: clamp(1.4rem, 3vw, 2rem);
            color: var(--text-white);
            text-align: center;
            margin-bottom: 32px;
        }
        .section-heading span {
            color: var(--accent-gold);
        }
        .specs-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
            max-width: 980px;
            margin: 0 auto;
        }
        .spec-item {
            background: var(--bg-card);
            border: 1px solid var(--border-mint);
            border-radius: var(--radius-md);
            padding: 22px 18px;
            text-align: center;
            transition: var(--transition-base);
        }
        .spec-item:hover {
            border-color: var(--accent-gold);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card);
        }
        .spec-item i {
            font-size: 1.5rem;
            color: var(--accent-gold);
            margin-bottom: 10px;
        }
        .spec-item h3 {
            font-size: .85rem;
            font-weight: 700;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: .04em;
            margin-bottom: 6px;
        }
        .spec-item strong {
            font-size: 1.05rem;
            color: var(--text-white);
            font-weight: 700;
        }

        /* === Gallery === */
        .gallery-section {
            padding: var(--section-pad) 0;
        }
        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
            max-width: 1000px;
            margin: 0 auto;
        }
        .gallery-item {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 2px solid var(--border-mint);
            transition: var(--transition-base);
            cursor: pointer;
            background: var(--bg-card);
        }
        .gallery-item:hover {
            border-color: var(--accent-gold);
            transform: scale(1.02);
            box-shadow: var(--shadow-gold);
        }
        .gallery-item img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

        /* === Download CTA Bar === */
        .download-cta-section {
            padding: 48px 0 72px;
        }
        .download-cta-card {
            background: linear-gradient(135deg, rgba(255, 204, 0, .12), rgba(11, 60, 37, .9));
            border: 2px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 44px 32px;
            text-align: center;
            max-width: 820px;
            margin: 0 auto;
            box-shadow: var(--shadow-gold);
        }
        .download-cta-card h2 {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: clamp(1.4rem, 3vw, 2rem);
            color: var(--text-white);
            margin-bottom: 14px;
        }
        .download-cta-card p {
            color: var(--text-mint);
            max-width: 560px;
            margin: 0 auto 28px;
            font-size: 1rem;
        }
        .cta-btn-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }

        /* === FAQ === */
        .faq-section {
            padding: var(--section-pad) 0;
            background: rgba(10, 42, 58, .45);
            border-top: 1px solid var(--border-mint);
            border-bottom: 1px solid var(--border-mint);
        }
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-mint);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--border-gold);
        }
        .faq-question {
            width: 100%;
            background: transparent;
            color: var(--text-white);
            padding: 20px 24px;
            font-size: 1rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            text-align: left;
            transition: var(--transition-base);
        }
        .faq-question i {
            color: var(--accent-gold);
            font-size: 1rem;
            transition: transform .3s ease;
            flex-shrink: 0;
        }
        .faq-question.open i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s cubic-bezier(.4, 0, .2, 1);
        }
        .faq-answer-inner {
            padding: 0 24px 20px;
            color: var(--text-minted, #C5E2D2);
            font-size: .95rem;
            line-height: 1.7;
        }

        /* === Footer === */
        .site-footer {
            background: rgba(4, 20, 12, .95);
            border-top: 1px solid var(--border-gold);
            padding: 60px 0 24px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 40px;
        }
        .footer-brand .logo-text {
            font-size: 1rem;
            margin-bottom: 14px;
            display: block;
            color: var(--accent-gold);
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: .88rem;
            line-height: 1.7;
        }
        .footer-col h4 {
            font-size: .95rem;
            color: var(--text-white);
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul a {
            color: var(--text-muted);
            font-size: .87rem;
            transition: var(--transition-base);
        }
        .footer-col ul a:hover {
            color: var(--accent-gold);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-mint);
            padding-top: 20px;
            text-align: center;
            color: var(--text-muted);
            font-size: .82rem;
        }
        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 560px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* === FAB === */
        .floating-fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 90;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(145deg, #1A1A1A, #0B0B0B);
            border: 2px solid var(--accent-gold);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3), inset 0 1px 8px rgba(255, 215, 0, 0.22);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.4rem;
            transition: var(--transition-base);
            animation: fab-breathe 3s ease-in-out infinite;
            cursor: pointer;
            opacity: .72;
        }
        .floating-fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 6px 30px rgba(255, 215, 0, 0.55);
        }
        .floating-fab:active {
            transform: scale(.95);
        }

        @keyframes fab-breathe {
            0%, 100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-7px);
            }
        }

        .floating-fab .gem-dot {
            position: absolute;
            top: -3px;
            right: -3px;
            width: 13px;
            height: 13px;
            border-radius: 50%;
            background: #D32F2F;
            border: 2px solid var(--bg-deep);
            animation: gem-blink 1.8s ease-in-out infinite;
        }
        @keyframes gem-blink {
            0%, 100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: .4;
                transform: scale(1.2);
            }
        }

        @media (max-width: 640px) {
            .floating-fab {
                left: 12px;
                bottom: 80px;
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
        }

        /* === Bottom fixed download bar (mobile) === */
        .bottom-download-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(6, 35, 21, .96);
            backdrop-filter: blur(16px);
            border-top: 1px solid var(--border-gold);
            padding: 12px 16px;
            display: none;
        }
        .bottom-download-bar .inner {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .bottom-download-bar .title {
            flex: 1;
            font-size: .82rem;
            color: var(--text-mint);
            line-height: 1.3;
        }
        .bottom-download-bar .btn {
            padding: 10px 16px;
            border-radius: 12px;
            font-size: .8rem;
            font-weight: 700;
            white-space: nowrap;
            background: var(--accent-gold);
            color: var(--bg-deep);
        }
        @media (max-width: 640px) {
            .bottom-download-bar {
                display: block;
            }
        }

/* roulang page: category1 */
:root {
            --jade-dark: #0A2E1C;
            --jade-deep: #123E25;
            --jade-light: #1B5333;
            --jade-pale: #D1F2EB;
            --gold-imperial: #FFD700;
            --gold-dark: #C5A059;
            --gold-soft: #F0E68C;
            --lucky-red: #D32F2F;
            --white: #FFFFFF;
            --text-body: #E0E8E4;
            --text-muted: #98B0A5;
            --text-pale: #D1F2EB;
            --border-subtle: rgba(255, 215, 0, 0.18);
            --border-gold: rgba(255, 215, 0, 0.45);
            --radius-card: 1.25rem;
            --radius-large: 1.75rem;
            --shadow-card: 0 8px 28px rgba(0, 0, 0, 0.35), 0 0 0 1px var(--border-subtle);
            --shadow-card-hover: 0 16px 44px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--border-gold);
            --transition-base: all 0.28s cubic-bezier(0.2, 0.8, 0.3, 1);
        }

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

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

        body {
            font-family: 'Be Vietnam Pro', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, Arial, sans-serif;
            background-color: var(--jade-dark);
            color: var(--text-body);
            line-height: 1.62;
            font-size: 16px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        main {
            flex: 1;
        }

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
            transition: var(--transition-base);
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 60;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            padding: 0.85rem 0;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--white);
            white-space: nowrap;
        }
        .nav-logo .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--gold-imperial), #A67C00);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0A2E1C;
            font-size: 1.2rem;
            box-shadow: 0 0 0 2px rgba(255, 215, 0, 0.35), 0 4px 14px rgba(255, 215, 0, 0.25);
            transition: var(--transition-base);
        }
        .nav-logo:hover .logo-icon {
            transform: scale(1.08);
            box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.55), 0 8px 24px rgba(255, 215, 0, 0.35);
        }
        .logo-text {
            font-size: 1.1rem;
            line-height: 1.2;
        }
        .logo-text span {
            color: var(--gold-imperial);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .nav-links a {
            padding: 0.55rem 1rem;
            border-radius: 999px;
            font-weight: 500;
            font-size: 0.92rem;
            color: var(--text-muted);
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--white);
            background: rgba(255, 215, 0, 0.12);
        }
        .nav-links a.active {
            color: #0A2E1C;
            background: linear-gradient(135deg, var(--gold-imperial), var(--gold-soft));
            font-weight: 700;
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.3);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
        }
        .btn-login {
            padding: 0.55rem 1.2rem;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.92rem;
            color: var(--gold-imperial);
            background: transparent;
            border: 1px solid rgba(255, 215, 0, 0.4);
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .btn-login:hover {
            background: rgba(255, 215, 0, 0.15);
            border-color: var(--gold-imperial);
            transform: translateY(-1px);
        }
        .btn-signup {
            padding: 0.55rem 1.3rem;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.92rem;
            color: #0A2E1C;
            background: linear-gradient(135deg, var(--gold-imperial), var(--gold-soft));
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.3);
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 26px rgba(255, 215, 0, 0.45);
        }
        .btn-signup:active {
            transform: translateY(0);
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid var(--border-subtle);
            color: var(--gold-imperial);
            font-size: 1.3rem;
            align-items: center;
            justify-content: center;
            transition: var(--transition-base);
        }
        .nav-toggle:hover {
            background: rgba(255, 215, 0, 0.22);
            border-color: var(--border-gold);
        }

        /* Hero */
        .hero-section {
            position: relative;
            padding: 8.5rem 0 5rem;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center center;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 46, 28, 0.72) 0%, rgba(10, 46, 28, 0.85) 55%, rgba(10, 46, 28, 0.95) 100%);
            z-index: 1;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 40%, rgba(255, 215, 0, 0.08) 0%, transparent 60%);
            z-index: 1;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 3.5rem;
            align-items: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.4rem 1rem;
            border-radius: 999px;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid rgba(255, 215, 0, 0.35);
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--gold-imperial);
            margin-bottom: 1.4rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }
        .hero-badge i {
            font-size: 0.8rem;
        }

        .hero-title {
            font-size: clamp(2rem, 4.5vw, 3.4rem);
            font-weight: 900;
            line-height: 1.2;
            color: var(--white);
            margin-bottom: 1.2rem;
            letter-spacing: -0.01em;
        }
        .hero-title .highlight {
            color: var(--gold-imperial);
            position: relative;
            white-space: nowrap;
        }
        .hero-title .highlight::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 2px;
            right: 0;
            height: 8px;
            background: rgba(255, 215, 0, 0.3);
            border-radius: 4px;
            z-index: -1;
        }

        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-pale);
            line-height: 1.65;
            margin-bottom: 2rem;
            max-width: 560px;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 2rem;
        }
        .btn-primary {
            padding: 0.9rem 2rem;
            border-radius: 999px;
            font-weight: 700;
            font-size: 1.05rem;
            color: #0A2E1C;
            background: linear-gradient(135deg, var(--gold-imperial), var(--gold-soft));
            box-shadow: 0 6px 24px rgba(255, 215, 0, 0.4);
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 34px rgba(255, 215, 0, 0.55);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-secondary {
            padding: 0.9rem 1.8rem;
            border-radius: 999px;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--gold-imperial);
            background: transparent;
            border: 1.5px solid rgba(255, 215, 0, 0.5);
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
        }
        .btn-secondary:hover {
            background: rgba(255, 215, 0, 0.12);
            border-color: var(--gold-imperial);
            transform: translateY(-2px);
        }

        .hero-trust-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            align-items: center;
        }
        .trust-badge {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        .trust-badge i {
            color: var(--gold-imperial);
            font-size: 0.95rem;
        }

        .version-panel {
            background: rgba(18, 62, 37, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: var(--radius-large);
            border: 1px solid var(--border-gold);
            padding: 1.8rem;
            box-shadow: var(--shadow-card);
        }
        .version-panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 1.5rem;
            gap: 1rem;
        }
        .version-panel-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--white);
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .version-panel-title i {
            color: var(--gold-imperial);
        }
        .version-panel-badge {
            padding: 0.25rem 0.8rem;
            border-radius: 999px;
            background: rgba(211, 47, 47, 0.2);
            border: 1px solid rgba(211, 47, 47, 0.5);
            font-size: 0.75rem;
            font-weight: 700;
            color: #FF6B6B;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }
        .version-tabs {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0.6rem;
            margin-bottom: 1.5rem;
        }
        .version-tab {
            padding: 0.7rem;
            border-radius: 12px;
            font-weight: 600;
            font-size: 0.92rem;
            text-align: center;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 215, 0, 0.2);
            color: var(--text-muted);
            transition: var(--transition-base);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }
        .version-tab:hover {
            border-color: rgba(255, 215, 0, 0.4);
            color: var(--white);
        }
        .version-tab.active {
            background: rgba(255, 215, 0, 0.12);
            border-color: var(--gold-imperial);
            color: var(--gold-imperial);
            font-weight: 700;
            box-shadow: 0 0 20px rgba(255, 215, 0, 0.15);
        }
        .version-detail {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            margin-bottom: 1.5rem;
            padding: 1rem;
            border-radius: 14px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
        }
        .version-detail-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--gold-imperial), #A67C00);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: #0A2E1C;
            flex-shrink: 0;
        }
        .version-detail-info h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 0.15rem;
        }
        .version-detail-info p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .btn-download-full {
            width: 100%;
            padding: 0.95rem;
            border-radius: 14px;
            font-weight: 700;
            font-size: 1.05rem;
            color: #0A2E1C;
            background: linear-gradient(135deg, var(--gold-imperial), var(--gold-soft));
            box-shadow: 0 6px 20px rgba(255, 215, 0, 0.35);
            transition: var(--transition-base);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.6rem;
        }
        .btn-download-full:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(255, 215, 0, 0.5);
        }
        .btn-download-full:active {
            transform: translateY(0);
        }

        /* Sections general */
        .section {
            padding: 5rem 0;
        }
        .section-alt {
            background: var(--jade-deep);
            border-top: 1px solid rgba(255, 215, 0, 0.08);
            border-bottom: 1px solid rgba(255, 215, 0, 0.08);
        }
        .section-header {
            margin-bottom: 3rem;
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: var(--gold-imperial);
            margin-bottom: 0.7rem;
        }
        .section-title {
            font-size: clamp(1.6rem, 3vw, 2.3rem);
            font-weight: 800;
            color: var(--white);
            line-height: 1.25;
            margin-bottom: 0.8rem;
        }
        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 620px;
            line-height: 1.65;
        }

        /* Feature cards */
        .feature-grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.6rem;
        }
        .feature-card {
            background: rgba(18, 62, 37, 0.6);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-subtle);
            padding: 2rem;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--gold-imperial), var(--gold-soft), transparent);
            opacity: 0;
            transition: var(--transition-base);
        }
        .feature-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 54px;
            height: 54px;
            border-radius: 14px;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid rgba(255, 215, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--gold-imperial);
            margin-bottom: 1.2rem;
            transition: var(--transition-base);
        }
        .feature-card:hover .feature-icon {
            background: rgba(255, 215, 0, 0.22);
            transform: scale(1.1);
            box-shadow: 0 0 24px rgba(255, 215, 0, 0.25);
        }
        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 0.7rem;
        }
        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Asymmetric steps / process */
        .process-grid {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 3.5rem;
            align-items: center;
        }
        .process-image-wrapper {
            border-radius: var(--radius-large);
            overflow: hidden;
            border: 1px solid var(--border-gold);
            box-shadow: var(--shadow-card);
            position: relative;
        }
        .process-image-wrapper img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 4/3;
            transition: var(--transition-base);
        }
        .process-image-wrapper:hover img {
            transform: scale(1.03);
        }
        .process-image-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 1.5rem;
            background: linear-gradient(180deg, transparent, rgba(10, 46, 28, 0.9));
        }
        .process-image-overlay p {
            color: var(--gold-imperial);
            font-weight: 600;
            font-size: 0.9rem;
        }

        .step-list {
            display: flex;
            flex-direction: column;
            gap: 1.6rem;
        }
        .step-item {
            display: flex;
            gap: 1.3rem;
            align-items: flex-start;
        }
        .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--gold-imperial), #A67C00);
            color: #0A2E1C;
            font-weight: 800;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            box-shadow: 0 4px 14px rgba(255, 215, 0, 0.35);
        }
        .step-item h4 {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 0.35rem;
        }
        .step-item p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Social proof / data badges */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.6rem;
        }
        .stat-card {
            background: rgba(18, 62, 37, 0.6);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-subtle);
            padding: 1.8rem 1.5rem;
            text-align: center;
            transition: var(--transition-base);
        }
        .stat-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .stat-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid rgba(255, 215, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--gold-imperial);
            margin: 0 auto 0.9rem;
        }
        .stat-number {
            font-size: 2rem;
            font-weight: 900;
            color: var(--gold-imperial);
            line-height: 1.1;
        }
        .stat-label {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-top: 0.3rem;
        }
        .stat-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            margin-top: 0.8rem;
            padding: 0.25rem 0.7rem;
            border-radius: 999px;
            font-size: 0.72rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            background: rgba(16, 185, 129, 0.15);
            border: 1px solid rgba(16, 185, 129, 0.4);
            color: #6EE7B7;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0.9rem;
            max-width: 820px;
        }
        .faq-item {
            background: rgba(18, 62, 37, 0.6);
            border-radius: 16px;
            border: 1px solid var(--border-subtle);
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--border-gold);
        }
        .faq-item.active {
            border-color: var(--border-gold);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.2rem 1.5rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--white);
            text-align: left;
            transition: var(--transition-base);
        }
        .faq-question:hover {
            color: var(--gold-imperial);
        }
        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid rgba(255, 215, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--gold-imperial);
            flex-shrink: 0;
            transition: var(--transition-base);
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: rgba(255, 215, 0, 0.25);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 1.5rem;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 1.5rem 1.4rem;
        }
        .faq-answer p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* CTA section */
        .cta-section {
            background: linear-gradient(135deg, var(--jade-light), var(--jade-dark));
            border-radius: var(--radius-large);
            border: 1px solid var(--border-gold);
            padding: 3.5rem 2.5rem;
            position: relative;
            overflow: hidden;
            margin: 0 auto;
            max-width: 1240px;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.08);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: 15%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.05);
            pointer-events: none;
        }
        .cta-content {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
            flex-wrap: wrap;
        }
        .cta-text h2 {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 800;
            color: var(--white);
            margin-bottom: 0.6rem;
        }
        .cta-text p {
            font-size: 1.05rem;
            color: var(--text-pale);
            max-width: 560px;
            line-height: 1.6;
        }
        .cta-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            flex-shrink: 0;
        }

        /* Footer */
        .site-footer {
            background: #071B10;
            border-top: 1px solid rgba(255, 215, 0, 0.15);
            padding: 4rem 0 2rem;
            margin-top: 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-brand .logo-text {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 1rem;
            line-height: 1.5;
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.65;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--gold-imperial);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 1rem;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .footer-col a {
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: var(--transition-base);
        }
        .footer-col a:hover {
            color: var(--gold-imperial);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 215, 0, 0.1);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        /* FAB - Classic Royal Gold Coin / Treasure Chest */
        .fab-royal {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 58px;
            height: 58px;
            border-radius: 50%;
            background: linear-gradient(145deg, #1A1500, #0A2E1C);
            border: 2px solid var(--gold-imperial);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3), inset 0 1px 2px rgba(255, 255, 255, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--gold-imperial);
            opacity: 0.7;
            transition: all 0.3s ease;
            cursor: pointer;
            animation: fabBreathe 3s ease-in-out infinite;
            text-decoration: none;
        }
        .fab-royal::after {
            content: '';
            position: absolute;
            top: -3px;
            right: -3px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--lucky-red);
            border: 2px solid #0A2E1C;
            animation: fabBlink 1.5s ease-in-out infinite;
        }
        .fab-royal:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 36px rgba(255, 215, 0, 0.5), inset 0 1px 2px rgba(255, 255, 255, 0.2);
        }
        .fab-royal:active {
            transform: scale(0.95) translateY(2px);
        }
        @keyframes fabBreathe {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-5px); }
        }
        @keyframes fabBlink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* Bottom fixed conversion bar */
        .fixed-bottom-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 40;
            background: rgba(10, 46, 28, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border-gold);
            padding: 0.7rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 1.5rem;
            flex-wrap: wrap;
        }
        .fixed-bottom-bar p {
            font-size: 0.9rem;
            color: var(--text-pale);
            font-weight: 500;
            white-space: nowrap;
        }
        .fixed-bottom-bar p strong {
            color: var(--gold-imperial);
        }
        .fixed-bottom-bar .btn-primary {
            padding: 0.6rem 1.5rem;
            font-size: 0.92rem;
            white-space: nowrap;
        }
        .fixed-bottom-bar .btn-secondary {
            padding: 0.6rem 1.4rem;
            font-size: 0.92rem;
            white-space: nowrap;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 2.5rem;
            }
            .feature-grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: 1fr;
                gap: 2.5rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(10, 46, 28, 0.97);
                border-bottom: 1px solid var(--border-subtle);
                padding: 1rem 1.5rem;
                flex-direction: column;
                align-items: stretch;
                gap: 0.4rem;
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
            }
            .nav-links.mobile-open {
                display: flex;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-actions {
                display: flex;
                margin-left: auto;
            }
            .nav-actions .btn-login,
            .nav-actions .btn-signup {
                padding: 0.45rem 0.9rem;
                font-size: 0.8rem;
            }
            .hero-section {
                padding: 7rem 0 3.5rem;
            }
            .hero-title {
                font-size: 1.9rem;
            }
            .hero-subtitle {
                font-size: 0.98rem;
            }
            .feature-grid-3 {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }
            .cta-section {
                padding: 2.5rem 1.5rem;
            }
            .cta-content {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.8rem;
            }
            .fixed-bottom-bar {
                padding: 0.6rem 1rem;
                gap: 0.8rem;
            }
            .fixed-bottom-bar p {
                font-size: 0.8rem;
            }
            .fixed-bottom-bar .btn-primary,
            .fixed-bottom-bar .btn-secondary {
                padding: 0.5rem 1.1rem;
                font-size: 0.82rem;
            }
            .fab-royal {
                bottom: 84px;
                width: 50px;
                height: 50px;
                font-size: 1.2rem;
                left: 12px;
            }
            .section {
                padding: 3.5rem 0;
            }
            .section-header {
                margin-bottom: 2rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 1rem;
            }
            .nav-wrapper {
                padding: 0.7rem 0;
            }
            .logo-text {
                font-size: 0.95rem;
            }
            .nav-logo .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }
            .nav-actions .btn-login {
                display: none;
            }
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-subtitle {
                font-size: 0.9rem;
            }
            .btn-primary,
            .btn-secondary {
                padding: 0.75rem 1.3rem;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }
            .hero-cta-group {
                flex-direction: column;
                gap: 0.7rem;
            }
            .version-panel {
                padding: 1.2rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .cta-actions {
                flex-direction: column;
                width: 100%;
            }
            .cta-actions .btn-primary,
            .cta-actions .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .fixed-bottom-bar p {
                white-space: normal;
                text-align: center;
                font-size: 0.75rem;
            }
            .fixed-bottom-bar {
                gap: 0.5rem;
                padding: 0.5rem 0.8rem;
            }
            .step-number {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }
            .feature-card {
                padding: 1.5rem;
            }
            .faq-question {
                padding: 1rem 1.1rem;
                font-size: 0.9rem;
            }
            .faq-answer {
                padding: 0 1.1rem;
            }
            .faq-item.active .faq-answer {
                padding: 0 1.1rem 1.1rem;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0F0C20;
            --bg-secondary: #0B1A30;
            --bg-card: rgba(15, 12, 32, 0.86);
            --bg-card-hover: rgba(22, 18, 48, 0.94);
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --accent-cyan-soft: rgba(0, 240, 255, 0.14);
            --accent-lime-soft: rgba(204, 255, 0, 0.12);
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --text-muted: #6E7683;
            --border-glow: rgba(0, 240, 255, 0.28);
            --border-glow-strong: rgba(0, 240, 255, 0.55);
            --border-lime: rgba(204, 255, 0, 0.35);
            --gradient-hero: linear-gradient(145deg, #0F0C20 0%, #0B1A30 52%, #0F0C20 100%);
            --gradient-primary: linear-gradient(90deg, #00F0FF 0%, #CCFF00 100%);
            --gradient-btn: linear-gradient(135deg, #00F0FF 0%, #00C8E0 45%, #CCFF00 100%);
            --gradient-progress: linear-gradient(90deg, #CCFF00, #00F0FF, #CCFF00);
            --shadow-neon-cyan: 0 0 20px rgba(0, 240, 255, 0.22);
            --shadow-neon-lime: 0 0 22px rgba(204, 255, 0, 0.2);
            --shadow-card-hover: 0 18px 42px rgba(0, 0, 0, 0.48), 0 0 22px rgba(0, 240, 255, 0.16);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --font-sans: 'Segoe UI', 'Be Vietnam Pro', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            --transition-fast: 180ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-base: 260ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 420ms cubic-bezier(0.4, 0, 0.2, 1);
            --spacing-section: 72px;
            --spacing-section-mobile: 44px;
            --max-width: 1180px;
        }

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

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.62;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast), opacity var(--transition-fast);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-base);
        }
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul, ol {
            list-style: none;
        }

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

        ::selection {
            background: rgba(0, 240, 255, 0.35);
            color: #FFFFFF;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(15, 12, 32, 0.82);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.14);
            transition: box-shadow var(--transition-base), background var(--transition-base);
        }
        .site-header.scrolled {
            background: rgba(10, 8, 24, 0.94);
            box-shadow: 0 6px 28px rgba(0, 0, 0, 0.45);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            min-height: 70px;
            flex-wrap: nowrap;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
            min-width: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: var(--gradient-primary);
            color: #0B1A30;
            font-size: 19px;
            flex-shrink: 0;
            box-shadow: 0 0 14px rgba(0, 240, 255, 0.35);
        }
        .logo-text {
            font-weight: 700;
            font-size: 16px;
            line-height: 1.25;
            white-space: nowrap;
            letter-spacing: 0.2px;
        }
        .logo-text span {
            color: var(--accent-cyan);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 20px;
            margin-left: auto;
            margin-right: 14px;
        }
        .nav-links a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 7px 12px;
            border-radius: var(--radius-full);
            white-space: nowrap;
            transition: all var(--transition-fast);
            position: relative;
        }
        .nav-links a:hover {
            color: var(--text-primary);
            background: rgba(0, 240, 255, 0.08);
        }
        .nav-links a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08); }
        .nav-links a::after {
            content: '';
            position: absolute;
            left: 12px;
            right: 12px;
            bottom: 3px;
            height: 2px;
            border-radius: 2px;
            background: var(--gradient-primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-base);
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            transform: scaleX(1);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .btn-login {
            background: transparent;
            border: 1px solid rgba(0, 240, 255, 0.4);
            color: var(--accent-cyan);
            padding: 9px 16px;
            border-radius: var(--radius-full);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .btn-login:hover {
            background: rgba(0, 240, 255, 0.1);
            border-color: var(--accent-cyan);
            box-shadow: 0 0 14px rgba(0, 240, 255, 0.25);
        }
        .btn-signup {
            background: var(--gradient-primary);
            color: #0B1A30;
            padding: 9px 18px;
            border-radius: var(--radius-full);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.3px;
            box-shadow: 0 4px 16px rgba(0, 240, 255, 0.3);
            white-space: nowrap;
        }
        .btn-signup:hover {
            box-shadow: 0 6px 22px rgba(0, 240, 255, 0.45);
            transform: translateY(-1px);
        }
        .btn-signup:active {
            transform: translateY(0) scale(0.98);
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            border: 1px solid rgba(0, 240, 255, 0.25);
            color: var(--accent-cyan);
            font-size: 18px;
            flex-shrink: 0;
        }
        .nav-toggle:hover {
            background: rgba(0, 240, 255, 0.08);
        }

        /* ===== Main base ===== */
        main {
            overflow-x: hidden;
        }
        .section-pad {
            padding-top: var(--spacing-section);
            padding-bottom: var(--spacing-section);
        }
        .section-pad-top {
            padding-top: var(--spacing-section);
        }
        .section-subtitle {
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1.6px;
            text-transform: uppercase;
            color: var(--accent-cyan);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 9px;
        }
        .section-subtitle::before {
            content: '';
            display: inline-block;
            width: 26px;
            height: 2px;
            border-radius: 2px;
            background: var(--gradient-primary);
        }
        .section-title {
            font-size: clamp(26px, 4vw, 38px);
            font-weight: 800;
            line-height: 1.22;
            letter-spacing: -0.4px;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .section-lead {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.68;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding-top: 150px;
            padding-bottom: 68px;
            background: var(--gradient-hero);
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.14;
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 78% 35%, rgba(0, 240, 255, 0.12), transparent 52%),
                        radial-gradient(ellipse at 22% 68%, rgba(204, 255, 0, 0.08), transparent 45%);
            pointer-events: none;
        }
        .hero-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.12fr 0.88fr;
            gap: 48px;
            align-items: center;
        }
        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 240, 255, 0.12);
            border: 1px solid rgba(0, 240, 255, 0.3);
            border-radius: var(--radius-full);
            padding: 7px 15px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-cyan);
            letter-spacing: 0.5px;
            text-transform: uppercase;
            margin-bottom: 20px;
        }
        .hero-eyebrow i {
            font-size: 13px;
        }
        .hero-title {
            font-size: clamp(32px, 5vw, 54px);
            font-weight: 800;
            line-height: 1.14;
            letter-spacing: -1px;
            margin-bottom: 22px;
            color: var(--text-primary);
        }
        .hero-title .gradient-text {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }
        .hero-desc {
            font-size: 17px;
            line-height: 1.7;
            color: var(--text-secondary);
            max-width: 590px;
            margin-bottom: 30px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
            margin-bottom: 28px;
        }
        .btn-primary-xl {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--gradient-btn);
            color: #0B1A30;
            padding: 16px 28px;
            border-radius: var(--radius-full);
            font-size: 15px;
            font-weight: 800;
            letter-spacing: 0.4px;
            box-shadow: 0 8px 28px rgba(0, 240, 255, 0.35);
            transition: all var(--transition-base);
        }
        .btn-primary-xl:hover {
            box-shadow: 0 12px 36px rgba(0, 240, 255, 0.5);
            transform: translateY(-2px);
        }
        .btn-primary-xl:active {
            transform: translateY(0) scale(0.98);
        }
        .btn-outline-xl {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            border: 1.5px solid rgba(0, 240, 255, 0.5);
            color: var(--accent-cyan);
            padding: 15px 26px;
            border-radius: var(--radius-full);
            font-size: 15px;
            font-weight: 700;
            letter-spacing: 0.4px;
            transition: all var(--transition-base);
        }
        .btn-outline-xl:hover {
            background: rgba(0, 240, 255, 0.1);
            border-color: var(--accent-cyan);
            box-shadow: 0 0 22px rgba(0, 240, 255, 0.3);
        }
        .hero-shield-row {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .hero-shield-row span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }
        .hero-shield-row i {
            color: var(--accent-cyan);
            font-size: 14px;
        }

        /* Hero right panel */
        .hero-panel {
            position: relative;
            background: var(--bg-card);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-xl);
            padding: 30px 28px;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: var(--shadow-neon-cyan);
        }
        .hero-panel::before {
            content: '';
            position: absolute;
            inset: -1px;
            border-radius: inherit;
            background: linear-gradient(135deg, rgba(0,240,255,0.35), rgba(204,255,0,0.2), rgba(0,240,255,0.15));
            z-index: -1;
            opacity: 0.6;
            filter: blur(6px);
        }
        .panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 18px;
        }
        .panel-badge {
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 1px;
            text-transform: uppercase;
            color: var(--accent-lime);
            background: var(--accent-lime-soft);
            border: 1px solid var(--border-lime);
            padding: 5px 12px;
            border-radius: var(--radius-full);
        }
        .panel-steps {
            font-size: 13px;
            color: var(--text-muted);
        }
        .progress-ring-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 22px 0;
        }
        .progress-ring {
            position: relative;
            width: 150px;
            height: 150px;
            border-radius: 50%;
            background: conic-gradient(var(--accent-cyan) 0deg 324deg, rgba(255,255,255,0.08) 324deg 360deg);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .progress-ring::before {
            content: '';
            position: absolute;
            width: 118px;
            height: 118px;
            border-radius: 50%;
            background: #0B1424;
        }
        .ring-content {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .ring-number {
            font-size: 34px;
            font-weight: 800;
            color: var(--accent-cyan);
            line-height: 1;
        }
        .ring-label {
            font-size: 11px;
            font-weight: 600;
            color: var(--text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.8px;
            margin-top: 5px;
        }
        .panel-divider {
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.28), transparent);
            margin: 16px 0;
        }
        .panel-tier-list {
            display: flex;
            flex-direction: column;
            gap: 11px;
        }
        .panel-tier {
            display: flex;
            align-items: center;
            gap: 12px;
            background: rgba(255,255,255,0.03);
            border: 1px solid rgba(255,255,255,0.07);
            border-radius: var(--radius-md);
            padding: 12px 14px;
            transition: all var(--transition-fast);
        }
        .panel-tier:hover {
            border-color: rgba(0, 240, 255, 0.35);
            background: rgba(0, 240, 255, 0.05);
        }
        .panel-tier i {
            font-size: 20px;
            color: var(--accent-cyan);
            width: 30px;
            text-align: center;
            flex-shrink: 0;
        }
        .tier-info {
            flex: 1;
            min-width: 0;
        }
        .tier-name {
            font-weight: 700;
            font-size: 14px;
            color: var(--text-primary);
        }
        .tier-meta {
            font-size: 12px;
            color: var(--text-secondary);
        }
        .tier-badge {
            font-size: 11px;
            font-weight: 700;
            background: var(--accent-lime-soft);
            color: var(--accent-lime);
            border: 1px solid var(--border-lime);
            padding: 4px 9px;
            border-radius: var(--radius-full);
            white-space: nowrap;
        }

        /* ===== Security strip ===== */
        .security-strip {
            background: rgba(11, 26, 48, 0.72);
            border-top: 1px solid rgba(0, 240, 255, 0.12);
            border-bottom: 1px solid rgba(0, 240, 255, 0.12);
            padding: 22px 0;
        }
        .security-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .security-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 14px;
            border-radius: var(--radius-md);
            background: rgba(255,255,255,0.02);
            transition: background var(--transition-fast);
        }
        .security-item:hover {
            background: rgba(0, 240, 255, 0.06);
        }
        .security-item i {
            font-size: 22px;
            color: var(--accent-cyan);
            flex-shrink: 0;
        }
        .security-item strong {
            display: block;
            font-size: 14px;
            color: var(--text-primary);
        }
        .security-item span {
            font-size: 12px;
            color: var(--text-secondary);
        }

        /* ===== Selling points ===== */
        .selling-section {
            background: var(--bg-primary);
        }
        .selling-head {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            gap: 24px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }
        .selling-head .section-lead {
            max-width: 480px;
        }
        .selling-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .selling-card {
            background: var(--bg-card);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .selling-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--gradient-primary);
            opacity: 0.75;
        }
        .selling-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .selling-icon {
            width: 50px;
            height: 50px;
            border-radius: 14px;
            background: rgba(0, 240, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            font-size: 23px;
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 240, 255, 0.22);
        }
        .selling-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.35;
        }
        .selling-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ===== Process timeline ===== */
        .process-section {
            background: linear-gradient(180deg, var(--bg-primary), #0A1330 55%, var(--bg-primary));
        }
        .process-head {
            margin-bottom: 44px;
        }
        .process-steps {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 22px;
            counter-reset: step;
        }
        .process-step {
            display: flex;
            gap: 18px;
            align-items: flex-start;
            background: rgba(255,255,255,0.025);
            border: 1px solid rgba(255,255,255,0.06);
            border-radius: var(--radius-lg);
            padding: 24px 22px;
            transition: all var(--transition-base);
            position: relative;
        }
        .process-step:hover {
            border-color: rgba(0, 240, 255, 0.3);
            background: rgba(0, 240, 255, 0.04);
        }
        .step-number {
            counter-increment: step;
            flex-shrink: 0;
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            color: var(--accent-cyan);
        }
        .step-number::before {
            content: counter(step, decimal-leading-zero);
        }
        .step-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .step-body p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.65;
        }
        .step-tag {
            display: inline-block;
            margin-top: 12px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-lime);
            background: var(--accent-lime-soft);
            padding: 4px 10px;
            border-radius: var(--radius-full);
            border: 1px solid var(--border-lime);
        }

        /* ===== Packages ===== */
        .packages-section {
            background: var(--bg-primary);
        }
        .packages-head {
            margin-bottom: 44px;
        }
        .packages-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .package-card {
            position: relative;
            background: var(--bg-card);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: var(--radius-xl);
            padding: 30px 26px;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .package-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .package-card.featured {
            border-color: var(--border-glow-strong);
            background: linear-gradient(145deg, rgba(0, 240, 255, 0.08), rgba(204, 255, 0, 0.05) 50%, rgba(0, 240, 255, 0.04));
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.15);
        }
        .package-tag {
            position: absolute;
            top: -12px;
            right: 18px;
            background: var(--gradient-primary);
            color: #0B1A30;
            padding: 5px 14px;
            border-radius: var(--radius-full);
            font-size: 11px;
            font-weight: 800;
            letter-spacing: 0.8px;
            text-transform: uppercase;
            box-shadow: 0 4px 14px rgba(0, 240, 255, 0.35);
        }
        .package-platform {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent-cyan);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 14px;
        }
        .package-platform i {
            font-size: 18px;
        }
        .package-card h3 {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .package-size {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 18px;
        }
        .package-features {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 11px;
            margin-bottom: 24px;
        }
        .package-features li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .package-features li i {
            color: var(--accent-cyan);
            font-size: 14px;
            flex-shrink: 0;
        }
        .package-download {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
            background: rgba(0, 240, 255, 0.1);
            border: 1.5px solid rgba(0, 240, 255, 0.4);
            color: var(--accent-cyan);
            padding: 13px 20px;
            border-radius: var(--radius-full);
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.3px;
            transition: all var(--transition-base);
        }
        .package-download:hover {
            background: rgba(0, 240, 255, 0.18);
            border-color: var(--accent-cyan);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
        }
        .package-card.featured .package-download {
            background: var(--gradient-btn);
            color: #0B1A30;
            border: none;
            box-shadow: 0 6px 20px rgba(0, 240, 255, 0.3);
        }
        .package-card.featured .package-download:hover {
            box-shadow: 0 10px 28px rgba(0, 240, 255, 0.45);
            transform: translateY(-1px);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: linear-gradient(180deg, var(--bg-primary), #0A1330 48%, var(--bg-primary));
        }
        .faq-head {
            margin-bottom: 38px;
        }
        .faq-list {
            max-width: 880px;
        }
        .faq-item {
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            background: rgba(255,255,255,0.02);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.25);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            padding: 18px 20px;
            text-align: left;
            background: transparent;
            color: var(--text-primary);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
        }
        .faq-question i {
            font-size: 14px;
            color: var(--accent-cyan);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.68;
            padding-left: 20px;
            padding-right: 20px;
        }
        .faq-item.active .faq-answer {
            max-height: 240px;
            padding-bottom: 18px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-primary);
            padding-bottom: 90px;
        }
        .cta-box {
            background: linear-gradient(145deg, rgba(0, 240, 255, 0.1), rgba(11, 26, 48, 0.9) 45%, rgba(204, 255, 0, 0.06));
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-xl);
            padding: 40px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }
        .cta-box::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 85% 20%, rgba(0, 240, 255, 0.14), transparent 50%);
            pointer-events: none;
        }
        .cta-content {
            position: relative;
            z-index: 1;
            max-width: 580px;
        }
        .cta-content h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 800;
            letter-spacing: -0.4px;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .cta-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.65;
        }
        .cta-actions {
            position: relative;
            z-index: 1;
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ===== Bottom fixed conversion bar ===== */
        .fixed-convert-bar {
            position: fixed;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 99;
            background: rgba(11, 14, 32, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid rgba(0, 240, 255, 0.2);
            padding: 12px 0;
            box-shadow: 0 -8px 28px rgba(0, 0, 0, 0.4);
            transform: translateY(100%);
            transition: transform var(--transition-slow);
        }
        .fixed-convert-bar.show {
            transform: translateY(0);
        }
        .convert-bar-inner {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .convert-bar-text {
            font-size: 13px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 9px;
        }
        .convert-bar-text i {
            color: var(--accent-cyan);
        }
        .convert-bar-actions {
            display: flex;
            gap: 10px;
        }
        .convert-bar-actions .btn-primary-xl {
            padding: 13px 22px;
            font-size: 14px;
        }
        .convert-bar-actions .btn-outline-xl {
            padding: 12px 20px;
            font-size: 14px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0A0D1E;
            border-top: 1px solid rgba(0, 240, 255, 0.12);
            padding-top: 56px;
            padding-bottom: 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 38px;
            margin-bottom: 40px;
        }
        .footer-brand .logo-text {
            font-size: 19px;
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 16px;
            white-space: normal;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 340px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            text-transform: uppercase;
            letter-spacing: 0.8px;
            margin-bottom: 14px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 9px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--accent-cyan);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 20px;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== FAB ===== */
        .fab-support {
            position: fixed;
            left: 18px;
            bottom: 96px;
            z-index: 98;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 9999px;
            background: rgba(0, 0, 0, 0.62);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            opacity: 0.62;
            transition: all var(--transition-base);
            animation: fabBreath 2.8s ease-in-out infinite;
        }
        .fab-support::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: inherit;
            background: linear-gradient(135deg, #CCFF00, #00F0FF, #CCFF00);
            z-index: -1;
            background-size: 300% 300%;
            animation: fabGradientFlow 4s linear infinite;
        }
        .fab-support i {
            font-size: 24px;
            color: var(--accent-cyan);
            transition: transform var(--transition-base);
        }
        .fab-support::after {
            content: '';
            position: absolute;
            top: 2px;
            right: 2px;
            width: 13px;
            height: 13px;
            border-radius: 50%;
            background: #FF007F;
            border: 2px solid #0B1424;
            box-shadow: 0 0 8px rgba(255, 0, 127, 0.7);
        }
        .fab-support:hover {
            opacity: 1;
            box-shadow: 0 0 26px rgba(0, 240, 255, 0.8);
            transform: scale(1.08);
        }
        .fab-support:hover i {
            transform: rotate(360deg);
        }
        .fab-support:active {
            transform: scale(0.95);
        }
        @keyframes fabBreath {
            0%, 100% {
                opacity: 0.62;
            }
            50% {
                opacity: 0.78;
            }
        }
        @keyframes fabGradientFlow {
            0% {
                background-position: 0% 50%;
            }
            50% {
                background-position: 100% 50%;
            }
            100% {
                background-position: 0% 50%;
            }
        }

        /* ===== Responsive ===== */
        @media screen and (max-width: 1024px) {
            :root {
                --spacing-section: 56px;
                --spacing-section-mobile: 36px;
            }
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .hero-title {
                font-size: clamp(28px, 4vw, 40px);
            }
            .selling-grid,
            .packages-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .security-list {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media screen and (max-width: 768px) {
            .section-pad {
                padding-top: var(--spacing-section-mobile);
                padding-bottom: var(--spacing-section-mobile);
            }
            .section-pad-top {
                padding-top: var(--spacing-section-mobile);
            }
            .hero {
                padding-top: 120px;
                padding-bottom: 44px;
            }
            .nav-links {
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                background: rgba(10, 8, 24, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
                padding: 20px 24px 28px;
                margin-left: 0;
                margin-right: 0;
                border-bottom: 1px solid rgba(0, 240, 255, 0.18);
                box-shadow: 0 18px 32px rgba(0, 0, 0, 0.45);
                display: none;
                z-index: 99;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                padding: 12px 16px;
                font-size: 15px;
                border-radius: 10px;
            }
            .nav-links a::after {
                display: none;
            }
            .nav-actions {
                display: none;
            }
            .nav-actions.mobile-visible {
                display: flex;
                width: 100%;
                gap: 10px;
                padding: 14px 24px 22px;
                background: rgba(10, 8, 24, 0.98);
                border-bottom: 1px solid rgba(0, 240, 255, 0.18);
                position: fixed;
                top: calc(70px + 250px);
                left: 0;
                right: 0;
                z-index: 99;
            }
            .nav-actions.mobile-visible .btn-login,
            .nav-actions.mobile-visible .btn-signup {
                flex: 1;
                justify-content: center;
                text-align: center;
                padding: 11px 14px;
                font-size: 14px;
            }
            .nav-toggle {
                display: flex;
            }
            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .btn-primary-xl,
            .btn-outline-xl {
                width: 100%;
                justify-content: center;
                text-align: center;
            }
            .hero-panel {
                padding: 22px 18px;
            }
            .selling-head {
                flex-direction: column;
                align-items: flex-start;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .cta-box {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 22px;
            }
            .cta-actions {
                width: 100%;
            }
            .cta-actions .btn-primary-xl,
            .cta-actions .btn-outline-xl {
                width: 100%;
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .fixed-convert-bar {
                padding: 10px 0;
            }
            .convert-bar-inner {
                flex-direction: column;
                gap: 10px;
            }
            .convert-bar-actions {
                width: 100%;
            }
            .convert-bar-actions .btn-primary-xl,
            .convert-bar-actions .btn-outline-xl {
                flex: 1;
                justify-content: center;
                text-align: center;
                padding: 11px 14px;
                font-size: 13px;
            }
            .fab-support {
                left: 14px;
                bottom: 86px;
                width: 50px;
                height: 50px;
            }
            .fab-support i {
                font-size: 22px;
            }
        }

        @media screen and (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-title {
                font-size: 24px;
            }
            .hero-title {
                font-size: 26px;
                letter-spacing: -0.5px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .security-list {
                grid-template-columns: 1fr;
            }
            .selling-grid,
            .packages-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .package-card,
            .selling-card {
                padding: 22px 18px;
            }
            .faq-question {
                font-size: 14px;
                padding: 16px 16px;
            }
            .faq-answer {
                padding-left: 16px;
                padding-right: 16px;
            }
            .logo-text {
                font-size: 14px;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 16px;
            }
        }