/* roulang page: index */
/* ===== Design Variables ===== */
    :root {
        --color-primary: #dc2626;
        --color-primary-dark: #b91c1c;
        --color-gold: #f59e0b;
        --color-gold-dark: #d97706;
        --color-ink: #0f172a;
        --color-ink-light: #334155;
        --color-ink-lighter: #64748b;
        --color-bg: #f8fafc;
        --color-bg-deep: #0b1120;
        --color-border: #e2e8f0;
        --color-white: #ffffff;
        --radius-lg: 1rem;
        --radius-xl: 1.5rem;
        --shadow-card: 0 1px 3px rgba(15,23,42,0.06), 0 8px 24px rgba(15,23,42,0.06);
        --shadow-card-hover: 0 4px 12px rgba(15,23,42,0.08), 0 16px 40px rgba(15,23,42,0.12);
        --transition-base: 0.25s ease;
        --container-max: 1200px;
        --spacing-section: 5rem;
    }

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

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

    body {
        font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
        font-size: 16px;
        line-height: 1.7;
        color: var(--color-ink);
        background-color: var(--color-bg);
        -webkit-font-smoothing: antialiased;
        overflow-x: hidden;
    }

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

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

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

    input,
    textarea {
        font-family: inherit;
        font-size: 1rem;
        border: 1px solid var(--color-border);
        border-radius: 0.75rem;
        padding: 0.75rem 1rem;
        background: var(--color-white);
        color: var(--color-ink);
        outline: none;
        transition: border-color var(--transition-base), box-shadow var(--transition-base);
    }

    input:focus,
    textarea:focus {
        border-color: var(--color-primary);
        box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.12);
    }

    /* ===== Container ===== */
    .container-custom {
        width: 100%;
        max-width: var(--container-max);
        margin: 0 auto;
        padding: 0 1.5rem;
    }

    @media (max-width: 640px) {
        .container-custom {
            padding: 0 1rem;
        }
    }

    /* ===== Section Spacing ===== */
    .section {
        padding: var(--spacing-section) 0;
    }

    .section-sm {
        padding: 3rem 0;
    }

    /* ===== Header / Nav ===== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(255, 255, 255, 0.92);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid rgba(226, 232, 240, 0.7);
        transition: box-shadow var(--transition-base);
    }

    .site-header.scrolled {
        box-shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
    }

    .nav-bar {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 72px;
        gap: 1.5rem;
    }

    .logo {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        font-size: 1.35rem;
        font-weight: 800;
        letter-spacing: -0.02em;
        color: var(--color-ink);
        white-space: nowrap;
    }

    .logo-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        border-radius: 12px;
        background: linear-gradient(135deg, #dc2626, #f59e0b);
        color: #fff;
        font-size: 1.1rem;
        flex-shrink: 0;
        box-shadow: 0 4px 12px rgba(220, 38, 38, 0.25);
    }

    .nav-links {
        display: flex;
        align-items: center;
        gap: 2rem;
        list-style: none;
    }

    .nav-links a {
        display: flex;
        align-items: center;
        gap: 0.375rem;
        font-size: 0.9375rem;
        font-weight: 500;
        color: var(--color-ink-light);
        padding: 0.375rem 0;
        position: relative;
        transition: color var(--transition-base);
    }

    .nav-links a::after {
        content: '';
        position: absolute;
        left: 0;
        bottom: -2px;
        width: 100%;
        height: 2px;
        border-radius: 2px;
        background: linear-gradient(90deg, #dc2626, #f59e0b);
        transform: scaleX(0);
        transform-origin: left;
        transition: transform var(--transition-base);
    }

    .nav-links a:hover,
    .nav-links a.active {
        color: var(--color-primary);
    }

    .nav-links a:hover::after,
    .nav-links a.active::after {
        transform: scaleX(1);
    }

    .nav-cta {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        background: linear-gradient(135deg, #dc2626, #b91c1c);
        color: #fff !important;
        font-size: 0.875rem;
        font-weight: 600;
        padding: 0.625rem 1.25rem;
        border-radius: 9999px;
        transition: transform var(--transition-base), box-shadow var(--transition-base);
        box-shadow: 0 4px 14px rgba(220, 38, 38, 0.3);
        white-space: nowrap;
    }

    .nav-cta:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(220, 38, 38, 0.4);
    }

    .nav-cta:active {
        transform: translateY(0);
    }

    /* Mobile menu */
    .nav-toggle {
        display: none;
        width: 42px;
        height: 42px;
        align-items: center;
        justify-content: center;
        border-radius: 10px;
        font-size: 1.15rem;
        color: var(--color-ink);
        transition: background var(--transition-base);
    }

    .nav-toggle:hover {
        background: var(--color-bg);
    }

    .mobile-menu {
        display: none;
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        z-index: 99;
        padding: 2rem 1.5rem;
        flex-direction: column;
        gap: 1rem;
        overflow-y: auto;
        border-top: 1px solid var(--color-border);
    }

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

    .mobile-menu a {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        font-size: 1.0625rem;
        font-weight: 500;
        color: var(--color-ink);
        padding: 0.875rem 0.75rem;
        border-radius: 0.75rem;
        transition: background var(--transition-base);
    }

    .mobile-menu a:hover,
    .mobile-menu a.active {
        background: #fef2f2;
        color: var(--color-primary);
    }

    .mobile-menu .nav-cta {
        justify-content: center;
        margin-top: 0.5rem;
    }

    @media (max-width: 768px) {
        .nav-links {
            display: none;
        }
        .nav-toggle {
            display: inline-flex;
        }
        .nav-bar .nav-cta {
            display: none;
        }
    }

    /* ===== Hero ===== */
    .hero {
        position: relative;
        min-height: 92vh;
        display: flex;
        align-items: center;
        background-image: url('/assets/images/backpic/back-1.png');
        background-size: cover;
        background-position: center;
        background-repeat: no-repeat;
        color: #fff;
        isolation: isolate;
        padding: 6rem 0;
    }

    .hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(11, 17, 32, 0.92) 0%, rgba(11, 17, 32, 0.72) 50%, rgba(220, 38, 38, 0.35) 100%);
        z-index: -1;
    }

    .hero::after {
        content: '';
        position: absolute;
        inset: 0;
        background: radial-gradient(ellipse at 75% 50%, rgba(245, 158, 11, 0.12) 0%, transparent 65%);
        z-index: -1;
    }

    .hero-content {
        max-width: 720px;
    }

    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.2);
        backdrop-filter: blur(8px);
        padding: 0.375rem 1rem;
        border-radius: 9999px;
        font-size: 0.8125rem;
        font-weight: 500;
        color: #fde68a;
        margin-bottom: 1.5rem;
        letter-spacing: 0.02em;
    }

    .hero-badge i {
        color: #fbbf24;
    }

    .hero h1 {
        font-size: clamp(2rem, 4.5vw, 3.25rem);
        line-height: 1.2;
        font-weight: 800;
        letter-spacing: -0.03em;
        margin-bottom: 1.25rem;
        color: #fff;
    }

    .hero h1 .highlight {
        background: linear-gradient(90deg, #fbbf24, #f59e0b);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

    .hero-desc {
        font-size: 1.125rem;
        color: rgba(255, 255, 255, 0.88);
        line-height: 1.8;
        margin-bottom: 2rem;
        max-width: 580px;
    }

    .hero-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 1rem;
        margin-bottom: 2.5rem;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        font-weight: 600;
        padding: 0.875rem 1.875rem;
        border-radius: 9999px;
        font-size: 0.9375rem;
        transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
    }

    .btn:focus-visible {
        outline: none;
        box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.25);
    }

    .btn-primary {
        background: linear-gradient(135deg, #dc2626, #b91c1c);
        color: #fff;
        box-shadow: 0 6px 20px rgba(220, 38, 38, 0.35);
    }

    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 10px 30px rgba(220, 38, 38, 0.45);
    }

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

    .btn-gold {
        background: linear-gradient(135deg, #fbbf24, #d97706);
        color: #0f172a;
        box-shadow: 0 6px 20px rgba(245, 158, 11, 0.3);
    }

    .btn-gold:hover {
        transform: translateY(-2px);
        box-shadow: 0 10px 30px rgba(245, 158, 11, 0.4);
    }

    .btn-outline-light {
        background: transparent;
        border: 1.5px solid rgba(255, 255, 255, 0.4);
        color: #fff;
    }

    .btn-outline-light:hover {
        background: rgba(255, 255, 255, 0.1);
        border-color: rgba(255, 255, 255, 0.6);
        transform: translateY(-2px);
    }

    .hero-metrics {
        display: flex;
        flex-wrap: wrap;
        gap: 2.5rem;
        padding-top: 1.5rem;
        border-top: 1px solid rgba(255, 255, 255, 0.15);
    }

    .metric-item .number {
        font-size: 1.75rem;
        font-weight: 800;
        color: #fff;
        line-height: 1.2;
    }

    .metric-item .label {
        font-size: 0.875rem;
        color: rgba(255, 255, 255, 0.65);
    }

    /* ===== Cards ===== */
    .card {
        background: var(--color-white);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-card);
        border: 1px solid rgba(226, 232, 240, 0.8);
        overflow: hidden;
        transition: transform var(--transition-base), box-shadow var(--transition-base);
    }

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

    .card-body {
        padding: 1.5rem;
    }

    .card-img {
        width: 100%;
        height: 200px;
        object-fit: cover;
    }

    .card-title {
        font-size: 1.0625rem;
        font-weight: 700;
        line-height: 1.4;
        margin-bottom: 0.5rem;
        color: var(--color-ink);
    }

    .card-desc {
        font-size: 0.875rem;
        color: var(--color-ink-lighter);
        line-height: 1.7;
    }

    /* Section headers */
    .section-label {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        background: #fef2f2;
        color: var(--color-primary);
        font-size: 0.8125rem;
        font-weight: 600;
        padding: 0.375rem 1rem;
        border-radius: 9999px;
        margin-bottom: 1rem;
    }

    .section-title {
        font-size: clamp(1.75rem, 3vw, 2.5rem);
        font-weight: 800;
        line-height: 1.25;
        letter-spacing: -0.02em;
        color: var(--color-ink);
        margin-bottom: 1rem;
    }

    .section-subtitle {
        font-size: 1rem;
        color: var(--color-ink-lighter);
        max-width: 640px;
        line-height: 1.8;
    }

    /* Category cards */
    .category-card {
        position: relative;
        border-radius: var(--radius-lg);
        overflow: hidden;
        min-height: 320px;
        display: flex;
        align-items: flex-end;
        color: #fff;
        cursor: pointer;
        isolation: isolate;
        transition: transform var(--transition-base), box-shadow var(--transition-base);
        box-shadow: var(--shadow-card);
    }

    .category-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-card-hover);
    }

    .category-card img {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        z-index: -1;
        transition: transform 0.6s ease;
    }

    .category-card:hover img {
        transform: scale(1.05);
    }

    .category-card::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(to top, rgba(11, 17, 32, 0.92) 0%, rgba(11, 17, 32, 0.35) 55%, transparent 100%);
        z-index: 0;
    }

    .category-card-content {
        position: relative;
        z-index: 1;
        padding: 1.75rem;
        width: 100%;
    }

    .category-card-content h3 {
        font-size: 1.25rem;
        font-weight: 700;
        margin-bottom: 0.375rem;
    }

    .category-card-content p {
        font-size: 0.875rem;
        color: rgba(255, 255, 255, 0.8);
        margin-bottom: 0.75rem;
    }

    .category-card-tag {
        display: inline-flex;
        align-items: center;
        gap: 0.375rem;
        font-size: 0.75rem;
        font-weight: 600;
        background: rgba(255, 255, 255, 0.18);
        backdrop-filter: blur(4px);
        padding: 0.25rem 0.75rem;
        border-radius: 9999px;
        border: 1px solid rgba(255, 255, 255, 0.25);
    }

    /* News list */
    .news-list {
        display: flex;
        flex-direction: column;
        gap: 1.25rem;
    }

    .news-item {
        display: flex;
        align-items: center;
        gap: 1.25rem;
        background: var(--color-white);
        border-radius: 0.75rem;
        padding: 1.25rem;
        border: 1px solid rgba(226, 232, 240, 0.7);
        transition: border-color var(--transition-base), box-shadow var(--transition-base);
    }

    .news-item:hover {
        border-color: rgba(220, 38, 38, 0.3);
        box-shadow: var(--shadow-card);
    }

    .news-date {
        flex-shrink: 0;
        text-align: center;
        background: #fef2f2;
        border-radius: 0.75rem;
        padding: 0.625rem 1rem;
        min-width: 70px;
    }

    .news-date .day {
        font-size: 1.375rem;
        font-weight: 800;
        color: var(--color-primary);
        line-height: 1.2;
    }

    .news-date .month {
        font-size: 0.75rem;
        color: var(--color-ink-lighter);
        text-transform: uppercase;
    }

    .news-content {
        flex: 1;
        min-width: 0;
    }

    .news-content h3 {
        font-size: 1rem;
        font-weight: 700;
        margin-bottom: 0.25rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .news-content p {
        font-size: 0.8125rem;
        color: var(--color-ink-lighter);
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .news-cat {
        display: inline-flex;
        align-items: center;
        gap: 0.25rem;
        flex-shrink: 0;
        background: #fffbeb;
        color: #d97706;
        font-size: 0.75rem;
        font-weight: 600;
        padding: 0.25rem 0.75rem;
        border-radius: 9999px;
        border: 1px solid #fde68a;
    }

    @media (max-width: 640px) {
        .news-item {
            flex-wrap: wrap;
            gap: 0.75rem;
        }
        .news-date {
            min-width: 60px;
            padding: 0.5rem 0.75rem;
        }
        .news-content h3 {
            white-space: normal;
        }
    }

    /* ===== Steps / Process ===== */
    .steps-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 2rem;
        counter-reset: step-counter;
    }

    .step-card {
        position: relative;
        padding: 2rem 1.5rem;
        background: var(--color-white);
        border-radius: var(--radius-lg);
        border: 1px solid var(--color-border);
        transition: transform var(--transition-base), box-shadow var(--transition-base);
    }

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

    .step-num {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 48px;
        height: 48px;
        border-radius: 14px;
        background: linear-gradient(135deg, #dc2626, #f59e0b);
        color: #fff;
        font-size: 1.125rem;
        font-weight: 800;
        margin-bottom: 1rem;
        box-shadow: 0 4px 14px rgba(220, 38, 38, 0.3);
    }

    .step-card h3 {
        font-size: 1.0625rem;
        font-weight: 700;
        margin-bottom: 0.5rem;
    }

    .step-card p {
        font-size: 0.875rem;
        color: var(--color-ink-lighter);
        line-height: 1.6;
    }

    @media (max-width: 1024px) {
        .steps-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }
    }

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

    /* ===== Stats ===== */
    .stats-banner {
        background: var(--color-bg-deep);
        border-radius: var(--radius-xl);
        padding: 3rem 2.5rem;
        color: #fff;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 2.5rem;
        position: relative;
        overflow: hidden;
    }

    .stats-banner::before {
        content: '';
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
        opacity: 0.15;
        z-index: 0;
    }

    .stats-banner>* {
        position: relative;
        z-index: 1;
    }

    .stat-item {
        text-align: center;
        padding: 1rem 0;
    }

    .stat-item .num {
        font-size: 2.25rem;
        font-weight: 800;
        background: linear-gradient(135deg, #fbbf24, #f59e0b);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        line-height: 1.2;
    }

    .stat-item .label {
        font-size: 0.875rem;
        color: rgba(255, 255, 255, 0.7);
        margin-top: 0.375rem;
    }

    @media (max-width: 768px) {
        .stats-banner {
            grid-template-columns: repeat(2, 1fr);
            padding: 2rem 1.5rem;
            gap: 1.5rem;
        }
    }

    @media (max-width: 520px) {
        .stats-banner {
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }
        .stat-item .num {
            font-size: 1.625rem;
        }
    }

    /* ===== FAQ ===== */
    .faq-item {
        background: var(--color-white);
        border: 1px solid var(--color-border);
        border-radius: 0.75rem;
        overflow: hidden;
        transition: border-color var(--transition-base), box-shadow var(--transition-base);
        margin-bottom: 0.75rem;
    }

    .faq-item.active {
        border-color: rgba(220, 38, 38, 0.3);
        box-shadow: var(--shadow-card);
    }

    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 1rem;
        padding: 1.25rem 1.5rem;
        font-size: 0.9375rem;
        font-weight: 600;
        color: var(--color-ink);
        cursor: pointer;
        transition: color var(--transition-base);
    }

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

    .faq-question .icon {
        flex-shrink: 0;
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: #fef2f2;
        color: var(--color-primary);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 0.875rem;
        transition: transform 0.3s ease, background var(--transition-base), color var(--transition-base);
    }

    .faq-item.active .faq-question .icon {
        transform: rotate(45deg);
        background: var(--color-primary);
        color: #fff;
    }

    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease;
    }

    .faq-answer-inner {
        padding: 0 1.5rem 1.5rem;
        font-size: 0.875rem;
        color: var(--color-ink-lighter);
        line-height: 1.8;
        border-top: 1px solid var(--color-border);
        padding-top: 0.875rem;
        margin-top: 0;
    }

    /* ===== CTA ===== */
    .cta-box {
        background: linear-gradient(135deg, #0b1120 0%, #1e1b4b 60%, #7f1d1d 100%);
        border-radius: var(--radius-xl);
        padding: 4rem 3rem;
        text-align: center;
        color: #fff;
        position: relative;
        overflow: hidden;
    }

    .cta-box::before {
        content: '';
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
        opacity: 0.1;
    }

    .cta-box>* {
        position: relative;
        z-index: 1;
    }

    .cta-box h2 {
        font-size: clamp(1.5rem, 3vw, 2.375rem);
        font-weight: 800;
        margin-bottom: 1rem;
        letter-spacing: -0.02em;
    }

    .cta-box p {
        color: rgba(255, 255, 255, 0.8);
        font-size: 1rem;
        max-width: 520px;
        margin: 0 auto 2rem;
        line-height: 1.8;
    }

    .cta-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 1rem;
        justify-content: center;
    }

    @media (max-width: 640px) {
        .cta-box {
            padding: 3rem 1.5rem;
        }
    }

    /* ===== Footer ===== */
    .site-footer {
        background: var(--color-bg-deep);
        color: rgba(255, 255, 255, 0.7);
        padding: 4rem 0 2rem;
        margin-top: auto;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
        gap: 3rem;
        margin-bottom: 3rem;
    }

    .footer-brand .logo {
        color: #fff;
        margin-bottom: 1rem;
    }

    .footer-brand p {
        font-size: 0.875rem;
        line-height: 1.8;
        color: rgba(255, 255, 255, 0.6);
        max-width: 320px;
    }

    .footer-col h4 {
        color: #fff;
        font-size: 0.9375rem;
        font-weight: 700;
        margin-bottom: 1rem;
    }

    .footer-col ul {
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
    }

    .footer-col a {
        font-size: 0.875rem;
        color: rgba(255, 255, 255, 0.6);
        transition: color var(--transition-base), padding-left var(--transition-base);
        display: inline-block;
    }

    .footer-col a:hover {
        color: #fbbf24;
        padding-left: 4px;
    }

    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        padding-top: 2rem;
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 1rem;
    }

    .footer-bottom p {
        font-size: 0.8125rem;
        color: rgba(255, 255, 255, 0.45);
    }

    .footer-links {
        display: flex;
        gap: 1.5rem;
    }

    .footer-links a {
        font-size: 0.8125rem;
        color: rgba(255, 255, 255, 0.45);
    }

    .footer-links a:hover {
        color: #fbbf24;
    }

    @media (max-width: 1024px) {
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
        }
    }

    @media (max-width: 640px) {
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }
    }

    /* ===== Grid / Section helpers ===== */
    .grid-cards {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 1.75rem;
    }

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

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

    .grid-2col {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
        align-items: center;
    }

    @media (max-width: 768px) {
        .grid-2col {
            grid-template-columns: 1fr;
            gap: 2rem;
        }
    }

    /* ===== Feature points ===== */
    .feature-list {
        display: flex;
        flex-direction: column;
        gap: 1rem;
        margin-top: 1.5rem;
    }

    .feature-item {
        display: flex;
        gap: 0.875rem;
        align-items: flex-start;
        padding: 0.75rem;
        border-radius: 0.75rem;
        background: rgba(255, 255, 255, 0.6);
        border: 1px solid rgba(226, 232, 240, 0.6);
        transition: background var(--transition-base), border-color var(--transition-base);
    }

    .feature-item:hover {
        background: #fff;
        border-color: rgba(220, 38, 38, 0.2);
    }

    .feature-icon {
        flex-shrink: 0;
        width: 36px;
        height: 36px;
        border-radius: 10px;
        background: #fef2f2;
        color: var(--color-primary);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 0.9375rem;
    }

    .feature-item h4 {
        font-size: 0.9375rem;
        font-weight: 700;
        margin-bottom: 0.25rem;
    }

    .feature-item p {
        font-size: 0.8125rem;
        color: var(--color-ink-lighter);
        line-height: 1.6;
    }

    /* ===== light section alternate ===== */
    .bg-light-soft {
        background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
    }

    .bg-deep {
        background: var(--color-bg-deep);
        color: #fff;
    }

    /* ===== focus / accessibility ===== */
    a:focus-visible,
    button:focus-visible {
        outline: 2px solid var(--color-gold);
        outline-offset: 2px;
    }

    /* ===== Scrollbar ===== */
    ::-webkit-scrollbar {
        width: 10px;
    }

    ::-webkit-scrollbar-track {
        background: #f1f5f9;
    }

    ::-webkit-scrollbar-thumb {
        background: #cbd5e1;
        border-radius: 5px;
    }

    ::-webkit-scrollbar-thumb:hover {
        background: #94a3b8;
    }

/* roulang page: article */
:root {
    --brand-900: #0f172a;
    --brand-800: #1e293b;
    --brand-700: #334155;
    --accent-400: #fbbf24;
    --accent-500: #f59e0b;
    --accent-600: #d97706;
    --bg-body: #f8fafc;
    --bg-surface: #ffffff;
    --bg-dark: #0f172a;
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.10);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.7;
    font-size: 16px;
}
a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
button {
    cursor: pointer;
    font-family: inherit;
}
.container-custom {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(15, 23, 42, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: var(--transition);
}
.nav-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 16px;
}
.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.25rem;
    color: #fff;
    letter-spacing: 0.02em;
    white-space: nowrap;
}
.logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, #f59e0b, #d97706);
    border-radius: 10px;
    color: #0f172a;
    font-size: 18px;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.35);
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}
.nav-links a {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 10px;
    transition: var(--transition);
}
.nav-links a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}
.nav-links a.active {
    color: #fbbf24;
    background: rgba(245, 158, 11, 0.12);
}
.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #0f172a;
    font-weight: 700;
    font-size: 0.92rem;
    padding: 10px 22px;
    border-radius: 12px;
    transition: var(--transition);
    box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3);
}
.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(245, 158, 11, 0.4);
}
.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 22px;
    width: 44px;
    height: 44px;
    border-radius: 10px;
    align-items: center;
    justify-content: center;
}
.nav-toggle:hover {
    background: rgba(255, 255, 255, 0.08);
}
.page-hero {
    position: relative;
    padding: 80px 0 60px;
    background-size: cover;
    background-position: center;
    color: #fff;
}
.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.92), rgba(15, 23, 42, 0.65));
}
.page-hero .container-custom {
    position: relative;
    z-index: 2;
}
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.breadcrumb a {
    color: #fbbf24;
}
.breadcrumb a:hover {
    color: #fff;
}
.page-hero-headings {
    max-width: 780px;
}
.page-hero-headings h1 {
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 18px;
    letter-spacing: 0.01em;
}
.hero-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
}
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    background: rgba(245, 158, 11, 0.18);
    color: #fbbf24;
    border: 1px solid rgba(245, 158, 11, 0.3);
}
.badge-light {
    background: #f1f5f9;
    color: #475569;
    border-color: #e2e8f0;
}
.article-section {
    padding: 56px 0;
}
.article-layout {
    display: flex;
    gap: 32px;
    align-items: flex-start;
}
.article-main {
    flex: 1;
    min-width: 0;
}
.article-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 44px;
    box-shadow: var(--shadow-md);
}
.article-content {
    font-size: 1.02rem;
    line-height: 1.85;
    color: var(--text-primary);
}
.article-content h2 {
    font-size: 1.45rem;
    font-weight: 700;
    margin: 32px 0 14px;
    padding-bottom: 10px;
    border-bottom: 2px solid #f1f5f9;
}
.article-content h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin: 24px 0 10px;
}
.article-content p {
    margin-bottom: 16px;
}
.article-content ul,
.article-content ol {
    margin: 0 0 16px 20px;
}
.article-content li {
    margin-bottom: 8px;
}
.article-content blockquote {
    border-left: 4px solid #f59e0b;
    background: #fffbeb;
    padding: 16px 20px;
    border-radius: 0 12px 12px 0;
    margin: 20px 0;
    color: #78350f;
}
.article-content img {
    border-radius: 14px;
    margin: 16px 0;
    box-shadow: var(--shadow-md);
}
.article-content a {
    color: #d97706;
    font-weight: 600;
    border-bottom: 1px solid rgba(217, 119, 6, 0.3);
}
.article-content a:hover {
    color: #0f172a;
    border-bottom-color: #0f172a;
}
.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid #f1f5f9;
}
.article-empty {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 64px 32px;
    text-align: center;
    box-shadow: var(--shadow-md);
}
.empty-icon {
    width: 90px;
    height: 90px;
    margin: 0 auto 24px;
    background: #f1f5f9;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: #94a3b8;
}
.article-empty h2 {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 12px;
}
.article-empty p {
    color: var(--text-secondary);
    max-width: 420px;
    margin: 0 auto 24px;
}
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #0f172a;
    font-weight: 700;
    padding: 12px 28px;
    border-radius: 12px;
    transition: var(--transition);
    box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(245, 158, 11, 0.4);
}
.article-sidebar {
    width: 320px;
    flex-shrink: 0;
    position: sticky;
    top: 92px;
}
.sidebar-inner {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.sidebar-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}
.sidebar-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid #f1f5f9;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--brand-900);
}
.sidebar-card h3 i {
    color: #f59e0b;
}
.sidebar-list {
    list-style: none;
}
.sidebar-list li + li {
    border-top: 1px solid #f8fafc;
}
.sidebar-list a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 8px;
    border-radius: 8px;
    font-size: 0.93rem;
    color: var(--text-secondary);
    font-weight: 500;
}
.sidebar-list a:hover {
    background: #f8fafc;
    color: #d97706;
}
.list-icon {
    width: 32px;
    height: 32px;
    background: #fffbeb;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #d97706;
    font-size: 14px;
}
.ml-auto {
    margin-left: auto;
    font-size: 12px;
    opacity: 0;
    transition: var(--transition);
}
.sidebar-list a:hover .ml-auto {
    opacity: 1;
    transform: translateX(3px);
}
.tip-box {
    background: linear-gradient(135deg, #fffbeb, #fef3c7);
    border: 1px solid #fde68a;
    border-radius: 12px;
    padding: 16px;
    font-size: 0.9rem;
    color: #78350f;
    line-height: 1.7;
}
.tip-box p + p {
    margin-top: 8px;
}
.extend-section {
    padding: 64px 0;
    background: #f1f5f9;
}
.section-header {
    text-align: center;
    margin-bottom: 40px;
}
.section-tag {
    display: inline-block;
    font-size: 0.82rem;
    font-weight: 700;
    color: #d97706;
    background: #fffbeb;
    padding: 6px 16px;
    border-radius: 20px;
    margin-bottom: 12px;
    border: 1px solid #fde68a;
}
.section-header h2 {
    font-size: clamp(1.6rem, 2.5vw, 2.2rem);
    font-weight: 800;
    color: var(--brand-900);
    margin-bottom: 8px;
}
.section-header p {
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto;
}
.extend-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.extend-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
}
.extend-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(245, 158, 11, 0.3);
}
.extend-card-image {
    position: relative;
    height: 180px;
    overflow: hidden;
}
.extend-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.extend-card:hover .extend-card-image img {
    transform: scale(1.05);
}
.extend-card-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.4), transparent 60%);
}
.extend-card-body {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.extend-card-body h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--brand-900);
    line-height: 1.5;
}
.extend-card-body p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    flex: 1;
    margin-bottom: 14px;
}
.extend-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    font-weight: 700;
    color: #d97706;
}
.extend-link:hover {
    gap: 10px;
    color: #0f172a;
}
.category-section {
    padding: 64px 0;
    background: var(--bg-surface);
}
.category-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.category-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    padding: 36px 28px;
    min-height: 210px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    color: #fff;
    background-size: cover;
    background-position: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}
.category-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.85), rgba(15, 23, 42, 0.35));
    transition: var(--transition);
}
.category-card:hover::before {
    background: linear-gradient(to top, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.5));
}
.category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.category-card .cat-icon {
    position: absolute;
    top: 28px;
    right: 28px;
    width: 48px;
    height: 48px;
    background: rgba(245, 158, 11, 0.2);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #fbbf24;
    z-index: 1;
}
.category-card h3 {
    position: relative;
    z-index: 1;
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 6px;
}
.category-card p {
    position: relative;
    z-index: 1;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}
.category-card .cat-more {
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #fbbf24;
}
.category-card .cat-more:hover {
    gap: 10px;
}
.faq-section {
    padding: 64px 0;
    background: #f8fafc;
}
.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 920px;
    margin: 0 auto;
}
.faq-item {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}
.faq-item:hover {
    box-shadow: var(--shadow-md);
    border-color: rgba(245, 158, 11, 0.2);
}
.faq-item h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--brand-900);
    display: flex;
    align-items: center;
    gap: 8px;
}
.faq-item h3 i {
    color: #f59e0b;
    font-size: 14px;
}
.faq-item p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.7;
}
.cta-section {
    position: relative;
    padding: 72px 0;
    background-size: cover;
    background-position: center;
    color: #fff;
}
.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.92), rgba(15, 23, 42, 0.75));
}
.cta-inner {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 680px;
    margin: 0 auto;
}
.cta-inner h2 {
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    font-weight: 800;
    margin-bottom: 12px;
}
.cta-inner p {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 28px;
}
.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}
.btn-light {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #0f172a;
    font-weight: 700;
    padding: 14px 32px;
    border-radius: 12px;
    transition: var(--transition);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
}
.btn-light:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 32px rgba(245, 158, 11, 0.45);
}
.btn-outline-light {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 2px solid rgba(255, 255, 255, 0.6);
    color: #fff;
    font-weight: 600;
    padding: 12px 28px;
    border-radius: 12px;
    transition: var(--transition);
}
.btn-outline-light:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.08);
}
.site-footer {
    background: #0f172a;
    color: rgba(255, 255, 255, 0.7);
    padding: 56px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 32px;
    padding-bottom: 40px;
}
.footer-brand .logo {
    color: #fff;
    margin-bottom: 14px;
}
.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.8;
    max-width: 320px;
    margin-top: 12px;
}
.footer-col h4 {
    font-size: 1rem;
    color: #fff;
    margin-bottom: 16px;
    font-weight: 700;
}
.footer-col ul {
    list-style: none;
}
.footer-col li {
    margin-bottom: 10px;
}
.footer-col a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
}
.footer-col a:hover {
    color: #fbbf24;
    transform: translateX(3px);
}
.footer-col li i {
    color: #f59e0b;
    font-size: 12px;
    width: 16px;
    text-align: center;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 0.85rem;
}
.footer-links {
    display: flex;
    gap: 16px;
}
.footer-links a {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
}
.footer-links a:hover {
    color: #fbbf24;
}
@media (max-width: 1024px) {
    .article-layout {
        flex-direction: column;
    }
    .article-sidebar {
        width: 100%;
        position: static;
    }
    .sidebar-inner {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #0f172a;
        flex-direction: column;
        padding: 16px 24px;
        gap: 4px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    }
    .nav-links.open {
        display: flex;
    }
    .nav-links a {
        padding: 14px 12px;
        font-size: 1rem;
        width: 100%;
    }
    .nav-cta {
        display: none;
    }
    .nav-toggle {
        display: flex;
    }
    .page-hero {
        padding: 56px 0 40px;
    }
    .extend-grid,
    .category-grid {
        grid-template-columns: 1fr;
    }
    .faq-grid {
        grid-template-columns: 1fr;
    }
    .article-card {
        padding: 24px 20px;
    }
    .sidebar-inner {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 520px) {
    .container-custom {
        padding: 0 16px;
    }
    .logo {
        font-size: 1.08rem;
        gap: 8px;
    }
    .nav-bar {
        height: 64px;
    }
    .nav-links {
        top: 64px;
    }
    .page-hero {
        padding: 44px 0 32px;
    }
    .hero-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* roulang page: category1 */
:root {
            --primary: #ffb84d;
            --primary-strong: #f59e0b;
            --primary-soft: #fff7e6;
            --ink: #161a26;
            --ink-2: #2a3040;
            --muted: #6c7383;
            --line: #e8eaf0;
            --bg: #f5f6fa;
            --surface: #ffffff;
            --radius: 18px;
            --radius-sm: 12px;
            --shadow: 0 16px 40px rgba(15, 18, 30, 0.08);
            --shadow-sm: 0 6px 18px rgba(15, 18, 30, 0.06);
            --container: 1200px;
            --header-h: 76px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, -apple-system, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--ink);
            background: var(--bg);
            padding-top: var(--header-h);
        }

        a {
            color: inherit;
        }

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

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

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

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(20, 24, 36, 0.94);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: box-shadow 0.3s, background 0.3s;
        }

        .site-header.scrolled {
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
            background: rgba(16, 19, 29, 0.98);
        }

        .nav-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-h);
            gap: 24px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: #fff;
            font-weight: 800;
            font-size: 20px;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 11px;
            background: linear-gradient(135deg, #ffb84d, #f59e0b);
            color: #1a1d29;
            font-size: 17px;
            box-shadow: 0 6px 14px rgba(245, 158, 11, 0.35);
            flex: none;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            text-decoration: none;
            color: #c7cbd9;
            font-size: 15px;
            font-weight: 500;
            padding: 10px 16px;
            border-radius: 999px;
            transition: all 0.25s;
            position: relative;
            white-space: nowrap;
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-links a.active {
            color: var(--primary);
        }

        .nav-links a.active::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: 2px;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            border-radius: 2px;
            background: var(--primary);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
            background: linear-gradient(135deg, #ffb84d, #f59e0b);
            color: #1e1a0f;
            font-weight: 700;
            font-size: 14px;
            padding: 10px 22px;
            border-radius: 999px;
            box-shadow: 0 8px 18px rgba(245, 158, 11, 0.35);
            transition: all 0.3s;
            white-space: nowrap;
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 26px rgba(245, 158, 11, 0.45);
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
            font-size: 17px;
            cursor: pointer;
            transition: all 0.25s;
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.14);
        }

        .nav-toggle:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ===== Banner ===== */
        .page-banner {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            background: var(--ink-2);
            overflow: hidden;
        }

        .banner-backdrop {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
        }

        .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(22, 26, 38, 0.96) 0%, rgba(22, 26, 38, 0.82) 45%, rgba(22, 26, 38, 0.55) 100%);
        }

        .banner-content {
            position: relative;
            z-index: 2;
            padding: 80px 24px;
            width: 100%;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.65);
            font-size: 13px;
            margin-bottom: 18px;
        }

        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
            transition: all 0.25s;
        }

        .breadcrumb a:hover {
            text-decoration: underline;
        }

        .banner-content h1 {
            font-size: clamp(34px, 5vw, 56px);
            line-height: 1.15;
            color: #fff;
            margin: 0 0 16px;
            font-weight: 900;
            letter-spacing: -1px;
        }

        .banner-content p {
            max-width: 640px;
            color: rgba(255, 255, 255, 0.82);
            font-size: 17px;
            margin: 0 0 24px;
        }

        .banner-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .banner-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.16);
            color: rgba(255, 255, 255, 0.9);
            font-size: 13px;
        }

        /* ===== Section ===== */
        .section {
            padding: 88px 0;
        }

        .section-alt {
            background: #fff;
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 999px;
            background: var(--primary-soft);
            color: #b45309;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }

        .section-head h2 {
            font-size: clamp(26px, 3.4vw, 36px);
            font-weight: 800;
            line-height: 1.3;
            margin: 0 0 12px;
            color: var(--ink);
        }

        .section-head p {
            color: var(--muted);
            font-size: 16px;
            margin: 0;
        }

        /* ===== Grid ===== */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        /* ===== Feature Card ===== */
        .feature-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 34px 28px;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--primary-strong));
            opacity: 0;
            transition: opacity 0.3s;
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: rgba(245, 158, 11, 0.35);
        }

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

        .feature-card .card-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #fff7e6, #ffe0a3);
            color: #b45309;
            font-size: 22px;
            margin-bottom: 20px;
        }

        .feature-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin: 0 0 10px;
        }

        .feature-card p {
            color: var(--muted);
            font-size: 15px;
            margin: 0;
            line-height: 1.7;
        }

        /* ===== Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .step-card {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 34px 26px;
            position: relative;
            border: 1px solid var(--line);
            text-align: left;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s;
        }

        .step-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }

        .step-num {
            font-size: 42px;
            font-weight: 900;
            line-height: 1;
            color: transparent;
            -webkit-text-stroke: 2px var(--primary);
            margin-bottom: 14px;
        }

        .step-card h3 {
            font-size: 18px;
            margin: 0 0 8px;
        }

        .step-card p {
            color: var(--muted);
            font-size: 14.5px;
            margin: 0;
            line-height: 1.7;
        }

        /* ===== Article Card ===== */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .article-card {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--line);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s;
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }

        .article-cover {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }

        .article-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .article-card:hover .article-cover img {
            transform: scale(1.04);
        }

        .article-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(15, 18, 30, 0.35));
        }

        .article-body {
            padding: 26px 28px 30px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .article-tag {
            align-self: flex-start;
            background: var(--primary-soft);
            color: #b45309;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 12px;
        }

        .article-body h3 {
            font-size: 18px;
            line-height: 1.5;
            margin: 0 0 10px;
        }

        .article-body h3 a {
            color: var(--ink);
            text-decoration: none;
            transition: color 0.25s;
        }

        .article-body h3 a:hover {
            color: #b45309;
        }

        .article-body p {
            color: var(--muted);
            font-size: 14.5px;
            margin: 0 0 18px;
            line-height: 1.7;
            flex: 1;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            color: var(--muted);
            font-size: 13px;
            border-top: 1px solid var(--line);
            padding-top: 16px;
            margin-top: auto;
        }

        .article-meta a {
            color: #b45309;
            text-decoration: none;
            font-weight: 600;
            margin-left: auto;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.25s;
        }

        .article-meta a:hover {
            gap: 10px;
        }

        /* ===== Stats ===== */
        .stats-section {
            background: var(--ink);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 50%;
            width: 700px;
            height: 700px;
            transform: translateX(-50%);
            background: radial-gradient(circle, rgba(255, 184, 77, 0.12), transparent 60%);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            z-index: 2;
        }

        .stat-card {
            text-align: center;
            padding: 20px;
            border-radius: var(--radius);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all 0.3s;
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
        }

        .stat-num {
            font-size: 40px;
            font-weight: 900;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-label {
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            margin-top: 6px;
        }

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

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 16px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color 0.3s, box-shadow 0.3s;
        }

        .faq-item.active {
            border-color: rgba(245, 158, 11, 0.4);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            background: transparent;
            border: none;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            cursor: pointer;
            text-align: left;
            transition: color 0.25s;
        }

        .faq-question:hover {
            color: #b45309;
        }

        .faq-question:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: -2px;
        }

        .faq-icon {
            flex: none;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: #b45309;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            transition: transform 0.3s;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-answer-inner {
            margin: 0;
            padding: 16px 24px 20px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.75;
            border-top: 1px dashed var(--line);
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 70px 0 90px;
        }

        .cta-box {
            background: linear-gradient(115deg, #1a1d29 0%, #2a3040 60%, #3a3f55 100%);
            border-radius: 28px;
            padding: 56px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            position: relative;
            overflow: hidden;
        }

        .cta-box::after {
            content: "";
            position: absolute;
            right: -60px;
            top: -60px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(255, 184, 77, 0.2), transparent 60%);
            border-radius: 50%;
        }

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

        .cta-text h2 {
            color: #fff;
            font-size: 28px;
            margin: 0 0 10px;
        }

        .cta-text p {
            color: rgba(255, 255, 255, 0.75);
            margin: 0;
            font-size: 15px;
            max-width: 520px;
        }

        .cta-buttons {
            position: relative;
            z-index: 2;
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 15px;
            text-decoration: none;
            transition: all 0.3s;
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, #ffb84d, #f59e0b);
            color: #1e1a0f;
            box-shadow: 0 10px 22px rgba(245, 158, 11, 0.35);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 30px rgba(245, 158, 11, 0.45);
        }

        .btn-outline {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.35);
        }

        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-3px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #141822;
            color: rgba(255, 255, 255, 0.72);
            padding: 70px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .logo {
            margin-bottom: 16px;
            display: inline-flex;
        }

        .footer-brand p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            line-height: 1.8;
            margin: 16px 0 0;
            max-width: 360px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin: 0 0 18px;
        }

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

        .footer-col li {
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
        }

        .footer-col a {
            color: rgba(255, 255, 255, 0.65);
            text-decoration: none;
            font-size: 14px;
            transition: color 0.25s, padding-left 0.25s;
            display: inline-flex;
            align-items: center;
        }

        .footer-col a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer-col li i.fa-solid {
            color: var(--primary);
            width: 18px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 24px;
            flex-wrap: wrap;
        }

        .footer-bottom p {
            margin: 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
            text-decoration: none;
            transition: color 0.25s;
        }

        .footer-links a:hover {
            color: var(--primary);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

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

        @media (max-width: 768px) {
            :root {
                --header-h: 68px;
            }

            .section {
                padding: 64px 0;
            }

            .nav-links {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                background: #171b29;
                padding: 14px 18px;
                gap: 4px;
                transform: translateY(-120%);
                transition: transform 0.35s ease;
                z-index: 999;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                box-shadow: 0 24px 40px rgba(0, 0, 0, 0.3);
            }

            .nav-links.open {
                transform: translateY(0);
            }

            .nav-links a {
                border-radius: 12px;
                padding: 12px 16px;
                justify-content: flex-start;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .nav-cta {
                display: none;
            }

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

            .banner-content {
                padding: 60px 24px;
            }

            .page-banner {
                min-height: 360px;
            }

            .cta-box {
                flex-direction: column;
                text-align: center;
                padding: 42px 26px;
            }

            .cta-buttons {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                padding: 0 18px;
            }

            .grid-3 {
                grid-template-columns: 1fr;
            }

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

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

            .logo {
                font-size: 18px;
            }

            .banner-content h1 {
                font-size: 32px;
            }

            .banner-content p {
                font-size: 15px;
            }
        }

/* roulang page: category2 */
:root {
            --brand: #d4a853;
            --brand-dark: #b8913a;
            --brand-light: #f0e3c5;
            --brand-deep: #96702a;
            --ink: #0b1220;
            --ink-light: #334155;
            --ink-lighter: #64748b;
            --bg-light: #f8fafc;
            --surface: #ffffff;
            --border: #e2e8f0;
            --radius: 18px;
            --radius-sm: 12px;
            --radius-xs: 8px;
            --shadow: 0 4px 24px rgba(2, 12, 27, 0.08);
            --shadow-lg: 0 14px 44px rgba(2, 12, 27, 0.12);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            color: var(--ink);
            background: var(--bg-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.25s ease;
        }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ---------- Header / Nav ---------- */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.7);
            box-shadow: 0 2px 12px rgba(2, 12, 27, 0.04);
        }
        .nav-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 78px;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 13px;
            background: linear-gradient(135deg, #d4a853 0%, #b8913a 50%, #96702a 100%);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 17px;
            box-shadow: 0 6px 16px rgba(184, 145, 58, 0.35);
        }
        .nav-links {
            display: flex;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            color: var(--ink-light);
            font-weight: 500;
            font-size: 15px;
            padding: 8px 2px;
            position: relative;
            border-radius: 6px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .nav-links a:hover {
            color: var(--brand-dark);
        }
        .nav-links a.active {
            color: var(--brand-dark);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 3px;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--brand), var(--brand-light));
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, #d4a853, #b8913a);
            color: #fff !important;
            font-weight: 600;
            font-size: 14px;
            padding: 10px 22px;
            border-radius: 99px;
            box-shadow: 0 6px 20px rgba(184, 145, 58, 0.35);
            transition: all 0.3s ease;
            flex-shrink: 0;
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(184, 145, 58, 0.45);
        }
        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--ink);
            font-size: 18px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .nav-toggle:focus-visible {
            outline: 3px solid rgba(212, 168, 83, 0.5);
            outline-offset: 2px;
        }

        /* ---------- Hero / Banner ---------- */
        .category-banner {
            position: relative;
            padding: 120px 0 100px;
            background-size: cover;
            background-position: center;
            color: #fff;
            overflow: hidden;
        }
        .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(11, 18, 32, 0.92) 0%, rgba(11, 18, 32, 0.72) 55%, rgba(11, 18, 32, 0.45) 100%);
        }
        .banner-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }
        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(212, 168, 83, 0.18);
            border: 1px solid rgba(212, 168, 83, 0.45);
            color: #f5d996;
            font-size: 14px;
            font-weight: 600;
            padding: 8px 18px;
            border-radius: 99px;
            backdrop-filter: blur(8px);
            margin-bottom: 24px;
        }
        .category-banner h1 {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 18px;
            letter-spacing: -1px;
        }
        .category-banner h1 .highlight {
            color: var(--brand);
            position: relative;
        }
        .category-banner p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
            max-width: 560px;
            line-height: 1.8;
        }
        .banner-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, #d4a853, #b8913a);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 14px 28px;
            border-radius: 99px;
            box-shadow: 0 8px 24px rgba(184, 145, 58, 0.4);
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
        }
        .btn-brand:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(184, 145, 58, 0.5);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            font-weight: 500;
            font-size: 15px;
            padding: 14px 28px;
            border-radius: 99px;
            border: 1.5px solid rgba(255, 255, 255, 0.6);
            transition: all 0.3s ease;
            cursor: pointer;
        }
        .btn-outline:hover {
            border-color: var(--brand);
            color: var(--brand);
            background: rgba(212, 168, 83, 0.08);
        }
        .banner-meta {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }
        .banner-meta span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            background: rgba(255, 255, 255, 0.08);
            padding: 8px 16px;
            border-radius: 99px;
            backdrop-filter: blur(6px);
        }

        /* ---------- Section ---------- */
        .section {
            padding: 90px 0;
        }
        .section-light {
            background: #fff;
        }
        .section-soft {
            background: var(--bg-light);
        }
        .section-dark {
            background: var(--ink);
            color: #fff;
        }
        .section-head {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 52px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--brand-light);
            color: var(--brand-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 7px 18px;
            border-radius: 99px;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .section-head h2 {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }
        .section-head p {
            color: var(--ink-lighter);
            font-size: 16px;
            line-height: 1.8;
        }
        .section-head.light h2 {
            color: #fff;
        }
        .section-head.light p {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ---------- Category Cards ---------- */
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }
        .cat-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 22px;
            text-align: center;
            transition: all 0.35s ease;
            position: relative;
            overflow: hidden;
        }
        .cat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--brand), var(--brand-light));
            transform: scaleX(0);
            transition: transform 0.35s ease;
        }
        .cat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(212, 168, 83, 0.4);
        }
        .cat-card:hover::before {
            transform: scaleX(1);
        }
        .cat-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: linear-gradient(135deg, #fdf8ee, #f8eccd);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--brand-dark);
            margin-bottom: 16px;
            transition: all 0.3s ease;
        }
        .cat-card:hover .cat-icon {
            background: linear-gradient(135deg, #d4a853, #b8913a);
            color: #fff;
            box-shadow: 0 8px 20px rgba(184, 145, 58, 0.3);
        }
        .cat-card strong {
            display: block;
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--ink);
        }
        .cat-card small {
            font-size: 13px;
            color: var(--ink-lighter);
            line-height: 1.6;
        }

        /* ---------- Game Cards ---------- */
        .game-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .game-card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all 0.4s ease;
            display: flex;
            flex-direction: column;
        }
        .game-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(212, 168, 83, 0.3);
        }
        .game-card-cover {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }
        .game-card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .game-card:hover .game-card-cover img {
            transform: scale(1.05);
        }
        .game-card-cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(2, 12, 27, 0.25));
        }
        .game-card-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
            background: rgba(11, 18, 32, 0.75);
            backdrop-filter: blur(8px);
            color: #f5d996;
            font-size: 12px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 99px;
            border: 1px solid rgba(212, 168, 83, 0.35);
        }
        .game-card-body {
            padding: 26px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .game-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--ink);
            line-height: 1.4;
        }
        .game-card-body p {
            font-size: 14px;
            color: var(--ink-lighter);
            line-height: 1.75;
            flex: 1;
            margin-bottom: 18px;
        }
        .game-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid #f1f5f9;
            font-size: 13px;
            color: var(--ink-lighter);
        }
        .game-card-meta i {
            color: var(--brand);
        }
        .link-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--brand-dark);
            font-weight: 600;
            font-size: 14px;
        }
        .link-more:hover {
            color: var(--brand-deep);
            gap: 10px;
        }

        /* ---------- Flow / Steps ---------- */
        .flow-section {
            background: linear-gradient(135deg, #0b1220 0%, #101c30 60%, #16243c 100%);
            position: relative;
            overflow: hidden;
        }
        .flow-section::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 520px;
            height: 520px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(212, 168, 83, 0.15), transparent 65%);
        }
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            position: relative;
            z-index: 2;
        }
        .flow-step {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius);
            padding: 36px 24px 28px;
            position: relative;
            backdrop-filter: blur(10px);
            transition: all 0.35s ease;
        }
        .flow-step:hover {
            background: rgba(255, 255, 255, 0.09);
            border-color: rgba(212, 168, 83, 0.35);
            transform: translateY(-4px);
        }
        .flow-num {
            font-size: 42px;
            font-weight: 800;
            line-height: 1;
            background: linear-gradient(135deg, #f5d996, #b8913a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 16px;
            font-family: 'Georgia', serif;
        }
        .flow-step h3 {
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .flow-step p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            line-height: 1.75;
        }

        /* ---------- Hot List ---------- */
        .hot-layout {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
        }
        .hot-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .hot-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 22px 0;
            border-bottom: 1px solid #f1f5f9;
            transition: all 0.3s ease;
        }
        .hot-item:last-child {
            border-bottom: none;
        }
        .hot-item:hover {
            padding-left: 8px;
        }
        .hot-rank {
            font-size: 26px;
            font-weight: 800;
            color: #e2e8f0;
            min-width: 44px;
            font-family: 'Georgia', serif;
            transition: color 0.3s;
        }
        .hot-item:hover .hot-rank {
            color: var(--brand);
        }
        .hot-info {
            flex: 1;
        }
        .hot-info h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            line-height: 1.5;
            margin-bottom: 4px;
            transition: color 0.3s;
        }
        .hot-item:hover .hot-info h3 {
            color: var(--brand-dark);
        }
        .hot-info span {
            font-size: 13px;
            color: var(--ink-lighter);
        }
        .hot-info span i {
            margin-right: 4px;
            color: var(--brand);
        }
        .hot-cover {
            border-radius: var(--radius-sm);
            overflow: hidden;
            min-width: 180px;
            aspect-ratio: 16 / 10;
        }
        .hot-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .hot-item:hover .hot-cover img {
            transform: scale(1.04);
        }

        /* ---------- Stats ---------- */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px 24px;
            text-align: center;
            transition: all 0.35s ease;
            position: relative;
            overflow: hidden;
        }
        .stat-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 40px;
            height: 3px;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--brand), var(--brand-light));
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .stat-num {
            font-size: 42px;
            font-weight: 800;
            background: linear-gradient(135deg, #d4a853, #96702a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 6px;
            line-height: 1.2;
        }
        .stat-label {
            font-size: 15px;
            color: var(--ink-light);
            font-weight: 500;
        }

        /* ---------- FAQ ---------- */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .faq-item:hover {
            border-color: rgba(212, 168, 83, 0.35);
            box-shadow: var(--shadow);
        }
        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 20px 26px;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-sans);
        }
        .faq-q i {
            color: var(--brand);
            transition: transform 0.3s ease;
            font-size: 14px;
            flex-shrink: 0;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }
        .faq-item.open .faq-a {
            max-height: 300px;
        }
        .faq-a p {
            padding: 0 26px 22px;
            color: var(--ink-lighter);
            font-size: 15px;
            line-height: 1.8;
        }

        /* ---------- CTA ---------- */
        .cta-section {
            position: relative;
            padding: 80px 0;
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }
        .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(11, 18, 32, 0.94), rgba(11, 18, 32, 0.82));
        }
        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }
        .cta-content h2 {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .cta-content p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            margin-bottom: 32px;
            line-height: 1.8;
        }

        /* ---------- Footer ---------- */
        .site-footer {
            background: #0b1220;
            color: rgba(255, 255, 255, 0.65);
            padding: 70px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 50px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.5);
            max-width: 340px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 12px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            background: var(--brand);
            border-radius: 2px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 12px;
            font-size: 14px;
        }
        .footer-col ul a {
            color: rgba(255, 255, 255, 0.55);
            transition: all 0.25s ease;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .footer-col ul a:hover {
            color: var(--brand);
            padding-left: 4px;
        }
        .footer-col ul li i {
            color: var(--brand);
            width: 18px;
            text-align: center;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 24px 0;
            flex-wrap: wrap;
        }
        .footer-bottom p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.4);
            margin: 0;
        }
        .footer-links {
            display: flex;
            gap: 22px;
        }
        .footer-links a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: var(--brand);
        }

        /* ---------- Mobile Menu ---------- */
        .mobile-drawer {
            display: none;
        }

        @media (max-width: 1024px) {
            .cat-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .game-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .flow-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .nav-cta {
                display: none;
            }
            .category-banner {
                padding: 80px 0 64px;
            }
            .category-banner h1 {
                font-size: 36px;
            }
            .section {
                padding: 64px 0;
            }
            .section-head h2 {
                font-size: 28px;
            }
            .hot-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
                padding-bottom: 36px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-links {
                justify-content: center;
                flex-wrap: wrap;
                gap: 14px;
            }
            .mobile-drawer {
                display: block;
                background: #fff;
                border-top: 1px solid var(--border);
                padding: 16px 24px;
                box-shadow: 0 10px 30px rgba(2, 12, 27, 0.08);
            }
            .mobile-drawer a {
                display: block;
                padding: 14px 0;
                color: var(--ink-light);
                font-weight: 500;
                font-size: 15px;
                border-bottom: 1px solid #f1f5f9;
            }
            .mobile-drawer a:last-child {
                border-bottom: none;
            }
            .mobile-drawer a.active {
                color: var(--brand-dark);
                font-weight: 600;
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                padding: 0 18px;
            }
            .cat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .game-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .flow-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .category-banner h1 {
                font-size: 30px;
            }
            .category-banner p {
                font-size: 15px;
            }
            .banner-meta {
                gap: 12px;
            }
            .banner-meta span {
                font-size: 12px;
                padding: 6px 12px;
            }
            .btn-brand,
            .btn-outline {
                padding: 12px 20px;
                font-size: 14px;
            }
            .hot-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .hot-cover {
                min-width: 100%;
                width: 100%;
            }
            .stat-num {
                font-size: 32px;
            }
        }

/* roulang page: category3 */
:root {
            --brand-dark: #141a26;
            --brand-deep: #1e2a3a;
            --brand: #2d3a4e;
            --brand-gold: #d4af37;
            --brand-gold-light: #f0e0b3;
            --bg-light: #f5f3ef;
            --bg-cream: #faf9f7;
            --text-main: #1a1a2e;
            --text-body: #4a5568;
            --text-muted: #8a94a6;
            --border-light: #e8e6e1;
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 4px 20px rgba(20, 26, 38, 0.08);
            --shadow-hover: 0 12px 32px rgba(20, 26, 38, 0.14);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', sans-serif;
            line-height: 1.7;
            color: var(--text-main);
            background-color: var(--bg-cream);
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color .25s ease, background-color .25s ease, border-color .25s ease, box-shadow .25s ease;
        }

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

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

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .container-custom2 {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .bg-brand-deep {
            background-color: var(--brand-deep);
        }

        .text-brand-gold {
            color: var(--brand-gold);
        }

        .bg-brand-gold {
            background-color: var(--brand-gold);
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(20, 24, 38, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: background-color .35s ease, box-shadow .35s ease;
        }

        .site-header.scrolled {
            background: rgba(20, 24, 38, 0.98);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
        }

        .nav-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: #fff;
            letter-spacing: .02em;
            white-space: nowrap;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: linear-gradient(135deg, #d4af37, #b18e2f);
            color: #141a26;
            font-size: 1rem;
            box-shadow: var(--shadow-card);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 9px 16px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.78);
            transition: all .3s ease;
        }

        .nav-links a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.1);
        }

        .nav-links a.active {
            color: #fff;
            background: rgba(212, 175, 55, 0.2);
            box-shadow: inset 0 0 0 1px rgba(212, 175, 55, 0.3);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 20px;
            border-radius: 999px;
            background: linear-gradient(135deg, #d4af37, #c09a2e);
            color: #141a26;
            font-weight: 700;
            font-size: 0.9rem;
            white-space: nowrap;
            box-shadow: var(--shadow-gold);
            transition: transform .3s ease, box-shadow .3s ease;
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(212, 175, 55, 0.45);
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .page-banner {
            position: relative;
            padding: 160px 0 80px;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .page-banner .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(105deg, rgba(20, 24, 38, 0.92) 20%, rgba(20, 24, 38, 0.7) 55%, rgba(20, 24, 38, 0.45) 100%);
        }

        .page-banner .banner-inner {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }

        .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: 999px;
            background: rgba(212, 175, 55, 0.15);
            border: 1px solid rgba(212, 175, 55, 0.3);
            color: #f0e0b3;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: .03em;
        }

        .banner-tag i {
            color: #d4af37;
        }

        .page-banner h1 {
            font-size: 3rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin: 20px 0 16px;
            letter-spacing: .01em;
        }

        .page-banner p {
            color: rgba(255, 255, 255, 0.88);
            font-size: 1.05rem;
            line-height: 1.8;
            margin-bottom: 28px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 12px;
            background: linear-gradient(135deg, #d4af37, #b8942e);
            color: #141a26;
            font-weight: 700;
            font-size: 0.95rem;
            box-shadow: 0 4px 20px rgba(212, 175, 55, 0.3);
            transition: all .3s ease;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(212, 175, 55, 0.45);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(8px);
            transition: all .3s ease;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: rgba(255, 255, 255, 0.5);
        }

        .section {
            padding: 72px 0;
        }

        .section-sm {
            padding: 48px 0;
        }

        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 44px;
        }

        .section-head .kicker {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: #b8942e;
            font-weight: 700;
            font-size: 0.85rem;
            letter-spacing: .05em;
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .section-head h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #141a26;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-head p {
            color: #6b7280;
            font-size: 0.98rem;
            line-height: 1.7;
        }

        .card-overview {
            background: #fff;
            border-radius: 16px;
            padding: 32px 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid #f0eee9;
            transition: all .35s ease;
            position: relative;
            overflow: hidden;
        }

        .card-overview::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, #d4af37, #f0e0b3);
            opacity: 0;
            transition: opacity .3s ease;
        }

        .card-overview:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

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

        .card-overview .icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-bottom: 18px;
        }

        .card-overview h3 {
            font-size: 1.12rem;
            font-weight: 700;
            color: #1e2a3a;
            margin-bottom: 8px;
        }

        .card-overview p {
            color: #6b7280;
            font-size: 0.9rem;
            line-height: 1.65;
        }

        .card-event {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid #f0eee9;
            transition: all .35s ease;
            display: flex;
            flex-direction: column;
        }

        .card-event:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .card-event .event-img {
            position: relative;
            height: 190px;
            overflow: hidden;
        }

        .card-event .event-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }

        .card-event:hover .event-img img {
            transform: scale(1.05);
        }

        .card-event .event-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 700;
            background: rgba(212, 175, 55, 0.92);
            color: #141a26;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
        }

        .card-event .event-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .card-event h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #1e2a3a;
            line-height: 1.4;
        }

        .card-event p {
            color: #6b7280;
            font-size: 0.88rem;
            line-height: 1.6;
            flex: 1;
        }

        .card-event .event-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 8px;
            border-top: 1px solid #f3f1ec;
            font-size: 0.78rem;
            color: #9ca3af;
        }

        .card-event .event-link {
            color: #b8942e;
            font-weight: 700;
            font-size: 0.82rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .card-event .event-link:hover {
            color: #8f7520;
        }

        .news-list-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            background: #fff;
            border-radius: 14px;
            padding: 16px;
            border: 1px solid #f0eee9;
            box-shadow: var(--shadow-card);
            transition: all .3s ease;
        }

        .news-list-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .news-list-item .thumb {
            width: 110px;
            height: 76px;
            flex-shrink: 0;
            border-radius: 10px;
            overflow: hidden;
        }

        .news-list-item .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-list-item .news-info {
            flex: 1;
        }

        .news-list-item .news-info h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #1e2a3a;
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .news-list-item .news-info h4:hover {
            color: #b8942e;
        }

        .news-list-item .news-info p {
            font-size: 0.82rem;
            color: #9ca3af;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .news-list-item .news-info .tag {
            display: inline-block;
            padding: 2px 8px;
            border-radius: 4px;
            background: rgba(212, 175, 55, 0.12);
            color: #b8942e;
            font-weight: 600;
            font-size: 0.72rem;
        }

        .process-step {
            text-align: center;
            padding: 28px 20px;
            position: relative;
        }

        .process-step .step-num {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            border-radius: 50%;
            background: linear-gradient(135deg, #d4af37, #b8942e);
            color: #141a26;
            font-weight: 800;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 16px rgba(212, 175, 55, 0.3);
        }

        .process-step h3 {
            font-size: 1rem;
            font-weight: 700;
            color: #1e2a3a;
            margin-bottom: 6px;
        }

        .process-step p {
            font-size: 0.85rem;
            color: #6b7280;
            line-height: 1.6;
        }

        .process-arrow {
            display: flex;
            align-items: center;
            justify-content: center;
            color: #d4af37;
            font-size: 1.2rem;
        }

        .stats-section {
            background-color: #1e2a3a;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
            padding: 64px 0;
        }

        .stats-section .overlay {
            position: absolute;
            inset: 0;
            background: rgba(20, 24, 38, 0.88);
        }

        .stats-section .inner {
            position: relative;
            z-index: 2;
        }

        .stat-box {
            text-align: center;
            padding: 24px 12px;
        }

        .stat-box .num {
            font-size: 2.4rem;
            font-weight: 800;
            color: #d4af37;
            line-height: 1.2;
            letter-spacing: -.02em;
        }

        .stat-box .label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 6px;
            font-weight: 500;
        }

        .faq-item {
            background: #fff;
            border-radius: 14px;
            border: 1px solid #f0eee9;
            box-shadow: var(--shadow-card);
            overflow: hidden;
            margin-bottom: 12px;
            transition: box-shadow .3s ease;
        }

        .faq-item:hover {
            box-shadow: var(--shadow-hover);
        }

        .faq-item details {
            padding: 0;
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-weight: 600;
            font-size: 0.95rem;
            color: #1e2a3a;
            cursor: pointer;
            list-style: none;
            gap: 16px;
        }

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

        .faq-item summary .faq-icon {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(212, 175, 55, 0.12);
            color: #b8942e;
            font-size: 0.75rem;
            flex-shrink: 0;
            transition: transform .3s ease;
        }

        .faq-item details[open] summary .faq-icon {
            transform: rotate(45deg);
        }

        .faq-item .faq-answer {
            padding: 0 22px 18px;
            color: #6b7280;
            font-size: 0.9rem;
            line-height: 1.75;
        }

        .cta-section {
            background: linear-gradient(135deg, #141a26, #1e2a3a);
            border-radius: 24px;
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(212, 175, 55, 0.08);
        }

        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 24px;
            font-size: 0.98rem;
        }

        .site-footer {
            background-color: #141a26;
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 0;
            margin-top: 64px;
        }

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

        .footer-brand .logo {
            margin-bottom: 14px;
        }

        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 12px;
            max-width: 300px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: .02em;
        }

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

        .footer-col ul li {
            margin-bottom: 10px;
            font-size: 0.85rem;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color .25s ease;
        }

        .footer-col ul li a:hover {
            color: #d4af37;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom p {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-links {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
        }

        .footer-links a {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
            transition: color .25s ease;
        }

        .footer-links a:hover {
            color: #d4af37;
        }

        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(212, 175, 55, 0.9);
            color: #141a26;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            box-shadow: 0 4px 20px rgba(212, 175, 55, 0.4);
            opacity: 0;
            visibility: hidden;
            transform: translateY(16px);
            transition: all .35s ease;
            z-index: 999;
        }

        .back-to-top.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .back-to-top:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 28px rgba(212, 175, 55, 0.5);
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .page-banner h1 {
                font-size: 2.4rem;
            }
            .container-custom {
                padding-left: 20px;
                padding-right: 20px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(20, 24, 38, 0.98);
                padding: 16px 20px;
                gap: 6px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links a {
                padding: 12px 16px;
                width: 100%;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-cta {
                display: none;
            }

            .page-banner {
                padding: 130px 0 60px;
            }

            .page-banner h1 {
                font-size: 1.9rem;
            }

            .page-banner p {
                font-size: 0.92rem;
            }

            .section {
                padding: 52px 0;
            }

            .section-head h2 {
                font-size: 1.55rem;
            }

            .stats-section {
                padding: 48px 0;
            }

            .stat-box .num {
                font-size: 1.8rem;
            }

            .news-list-item {
                flex-direction: row;
                padding: 12px;
                gap: 14px;
            }

            .news-list-item .thumb {
                width: 90px;
                height: 70px;
            }

            .cta-section {
                padding: 36px 24px;
            }

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

            .back-to-top {
                bottom: 20px;
                right: 20px;
                width: 40px;
                height: 40px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

            .page-banner h1 {
                font-size: 1.6rem;
            }

            .banner-tag {
                font-size: 0.72rem;
                padding: 5px 12px;
            }

            .btn-primary,
            .btn-outline-light {
                width: 100%;
                justify-content: center;
                margin-bottom: 8px;
            }

            .news-list-item .thumb {
                width: 76px;
                height: 60px;
            }

            .news-list-item .news-info h4 {
                font-size: 0.85rem;
            }

            .card-event .event-img {
                height: 160px;
            }
        }

        .icon-bg-1 {
            background: rgba(212, 175, 55, 0.12);
            color: #b8942e;
        }

        .icon-bg-2 {
            background: rgba(30, 42, 58, 0.08);
            color: #2d3a4e;
        }

        .icon-bg-3 {
            background: rgba(212, 175, 55, 0.2);
            color: #8f7520;
        }