/* roulang page: index */
:root {
            --color-bg: #0a0d14;
            --color-surface: #111620;
            --color-surface-elevated: #181d28;
            --color-border: #1e2533;
            --color-border-light: #2a3242;
            --color-gold: #c8963e;
            --color-gold-light: #d4a853;
            --color-gold-dark: #a67a2e;
            --color-gold-glow: rgba(200, 150, 62, 0.25);
            --color-accent: #e8b95b;
            --color-text: #e8e6e3;
            --color-text-strong: #ffffff;
            --color-text-muted: #9ca3af;
            --color-text-weak: #6b7280;
            --color-danger: #dc3545;
            --color-success: #28a745;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.35);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.45);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.55);
            --shadow-gold: 0 4px 20px rgba(200, 150, 62, 0.3);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --header-height: 72px;
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: var(--color-gold-light);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }
        a:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 3px;
            border-radius: 3px;
        }

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

        button {
            cursor: pointer;
        }
        button:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 3px;
        }

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

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-height);
            background: rgba(10, 13, 20, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border);
            transition: background var(--transition-normal), box-shadow var(--transition-normal);
        }
        .site-header.scrolled {
            background: rgba(10, 13, 20, 0.97);
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .nav-logo {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-text-strong);
            letter-spacing: 0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
        }
        .nav-logo:hover {
            color: var(--color-gold-light);
        }
        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--color-gold), var(--color-gold-dark));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #1a1a1a;
            font-weight: 900;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            display: inline-block;
            padding: 10px 18px;
            border-radius: var(--radius-full);
            color: var(--color-text-muted);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--color-text-strong);
            background: var(--color-surface-elevated);
        }
        .nav-links a.active {
            color: var(--color-gold-light);
            background: rgba(200, 150, 62, 0.1);
            font-weight: 600;
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 11px 26px;
            border-radius: var(--radius-full);
            background: linear-gradient(135deg, var(--color-gold), var(--color-gold-dark));
            color: #1a1a1a !important;
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            transition: all var(--transition-normal);
            box-shadow: 0 2px 8px rgba(200, 150, 62, 0.3);
            white-space: nowrap;
            text-decoration: none;
        }
        .nav-cta-btn:hover {
            background: linear-gradient(135deg, var(--color-gold-light), var(--color-gold));
            box-shadow: var(--shadow-gold);
            transform: translateY(-1px);
            color: #1a1a1a !important;
        }
        .nav-cta-btn:active {
            transform: scale(0.97);
        }
        .navbar-toggler-custom {
            display: none;
            background: none;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-sm);
            color: var(--color-text);
            padding: 8px 12px;
            font-size: 1.3rem;
            transition: all var(--transition-fast);
        }
        .navbar-toggler-custom:hover {
            border-color: var(--color-gold);
            color: var(--color-gold-light);
        }
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(10, 13, 20, 0.97);
            z-index: 1040;
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            padding-top: 30px;
            gap: 8px;
        }
        .mobile-nav-overlay.show {
            display: flex;
        }
        .mobile-nav-overlay a {
            display: block;
            width: 80%;
            text-align: center;
            padding: 14px 20px;
            border-radius: var(--radius-md);
            color: var(--color-text-muted);
            font-size: 1.05rem;
            font-weight: 500;
            transition: all var(--transition-fast);
        }
        .mobile-nav-overlay a:hover,
        .mobile-nav-overlay a.active {
            color: var(--color-gold-light);
            background: var(--color-surface-elevated);
        }
        .mobile-nav-overlay .nav-cta-btn {
            margin-top: 12px;
            width: 80%;
            text-align: center;
            justify-content: center;
            padding: 14px 20px;
            font-size: 1.05rem;
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: calc(var(--header-height) + 40px) 20px 80px;
            background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            background-position: center 30%;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 13, 20, 0.75) 0%, rgba(10, 13, 20, 0.88) 60%, var(--color-bg) 100%);
            z-index: 1;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, var(--color-bg), transparent);
            z-index: 2;
        }
        .hero-content {
            position: relative;
            z-index: 3;
            text-align: center;
            max-width: 780px;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 18px;
            border-radius: var(--radius-full);
            background: rgba(200, 150, 62, 0.15);
            color: var(--color-gold-light);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
            border: 1px solid rgba(200, 150, 62, 0.3);
        }
        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--color-text-strong);
            line-height: 1.25;
            margin-bottom: 18px;
            letter-spacing: 0.01em;
        }
        .hero-title .highlight {
            color: var(--color-gold-light);
            position: relative;
        }
        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--color-text-muted);
            line-height: 1.65;
            margin-bottom: 32px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .hero-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-primary-gold {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            border-radius: var(--radius-full);
            background: linear-gradient(135deg, var(--color-gold), var(--color-gold-dark));
            color: #1a1a1a;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-gold);
            text-decoration: none;
        }
        .btn-primary-gold:hover {
            background: linear-gradient(135deg, var(--color-gold-light), var(--color-gold));
            box-shadow: 0 6px 28px rgba(200, 150, 62, 0.45);
            transform: translateY(-2px);
            color: #1a1a1a;
        }
        .btn-primary-gold:active {
            transform: scale(0.96);
        }
        .btn-outline-light-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            border-radius: var(--radius-full);
            background: transparent;
            color: var(--color-text-strong);
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid var(--color-border-light);
            transition: all var(--transition-normal);
            text-decoration: none;
        }
        .btn-outline-light-custom:hover {
            border-color: var(--color-gold-light);
            color: var(--color-gold-light);
            background: rgba(200, 150, 62, 0.06);
        }

        /* ========== SECTIONS ========== */
        .section-padding {
            padding: 70px 0;
        }
        .section-padding-lg {
            padding: 90px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--color-gold-light);
            text-transform: uppercase;
            margin-bottom: 10px;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text-strong);
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }
        .section-desc {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            max-width: 620px;
            margin: 0 auto;
            line-height: 1.6;
        }

        /* ========== STATS BAR ========== */
        .stats-bar {
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
        }
        .stat-item {
            text-align: center;
            padding: 32px 20px;
            border-right: 1px solid var(--color-border);
            transition: background var(--transition-fast);
        }
        .stat-item:last-child {
            border-right: none;
        }
        .stat-item:hover {
            background: var(--color-surface-elevated);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-gold-light);
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            font-weight: 500;
        }

        /* ========== CARDS ========== */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 32px 26px;
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--color-gold), var(--color-gold-dark));
            opacity: 0;
            transition: opacity var(--transition-normal);
        }
        .feature-card:hover {
            border-color: var(--color-border-light);
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: rgba(200, 150, 62, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--color-gold-light);
            margin-bottom: 16px;
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-text-strong);
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 0.93rem;
            color: var(--color-text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ========== IMAGE-TEXT BLOCK ========== */
        .image-text-block {
            display: flex;
            align-items: center;
            gap: 50px;
            flex-wrap: wrap;
        }
        .image-text-block.reverse {
            flex-direction: row-reverse;
        }
        .image-text-block .it-image {
            flex: 1 1 400px;
            min-width: 280px;
        }
        .image-text-block .it-image img {
            width: 100%;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            transition: transform var(--transition-slow);
        }
        .image-text-block .it-image img:hover {
            transform: scale(1.02);
        }
        .image-text-block .it-text {
            flex: 1 1 350px;
            min-width: 280px;
        }
        .it-text .it-label {
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            color: var(--color-gold-light);
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .it-text h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-text-strong);
            margin-bottom: 14px;
        }
        .it-text p {
            font-size: 1rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .it-text .it-features {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .it-text .it-features li {
            padding: 6px 0 6px 26px;
            position: relative;
            color: var(--color-text-muted);
            font-size: 0.95rem;
        }
        .it-text .it-features li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--color-gold-light);
            font-weight: 700;
        }

        /* ========== CMS LIST ========== */
        .cms-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .cms-list-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            text-decoration: none;
            flex-wrap: wrap;
        }
        .cms-list-item:hover {
            border-color: var(--color-gold);
            box-shadow: var(--shadow-sm);
            background: var(--color-surface-elevated);
        }
        .cms-list-item .cms-title {
            font-weight: 600;
            color: var(--color-text-strong);
            font-size: 1rem;
            flex: 1;
            min-width: 200px;
        }
        .cms-list-item .cms-meta {
            display: flex;
            gap: 16px;
            align-items: center;
            flex-shrink: 0;
            font-size: 0.85rem;
            color: var(--color-text-weak);
        }
        .cms-list-item .cms-category {
            display: inline-block;
            padding: 3px 12px;
            border-radius: var(--radius-full);
            background: rgba(200, 150, 62, 0.12);
            color: var(--color-gold-light);
            font-size: 0.78rem;
            font-weight: 600;
        }
        .cms-empty {
            text-align: center;
            padding: 40px;
            color: var(--color-text-weak);
            font-size: 0.95rem;
        }

        /* ========== ADVANTAGES LIST ========== */
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .advantage-item {
            display: flex;
            gap: 16px;
            padding: 22px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            align-items: flex-start;
        }
        .advantage-item:hover {
            border-color: var(--color-border-light);
            box-shadow: var(--shadow-sm);
        }
        .advantage-icon {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: rgba(200, 150, 62, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--color-gold-light);
            flex-shrink: 0;
        }
        .advantage-text h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text-strong);
            margin-bottom: 4px;
        }
        .advantage-text p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            margin-bottom: 0;
            line-height: 1.5;
        }

        /* ========== FAQ ========== */
        .faq-wrapper {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-border-light);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            background: none;
            border: none;
            color: var(--color-text-strong);
            font-weight: 600;
            font-size: 0.98rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            transition: color var(--transition-fast);
            line-height: 1.4;
        }
        .faq-question:hover {
            color: var(--color-gold-light);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            transition: transform var(--transition-normal);
            font-size: 0.85rem;
            color: var(--color-text-weak);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--color-gold-light);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 22px 18px;
            color: var(--color-text-muted);
            font-size: 0.93rem;
            line-height: 1.65;
        }

        /* ========== CTA BANNER ========== */
        .cta-banner {
            background: var(--color-surface-elevated);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 180px;
            height: 180px;
            background: radial-gradient(circle, rgba(200, 150, 62, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-banner h3 {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--color-text-strong);
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-banner p {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            margin-bottom: 26px;
            position: relative;
            z-index: 1;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-banner .btn-primary-gold {
            position: relative;
            z-index: 1;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
            padding: 40px 0 30px;
        }
        .footer-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .footer-brand {
            font-weight: 700;
            color: var(--color-text-strong);
            font-size: 1.05rem;
        }
        .footer-links {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }
        .footer-links a {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--color-gold-light);
        }
        .footer-copy {
            font-size: 0.82rem;
            color: var(--color-text-weak);
            flex-basis: 100%;
            text-align: center;
            margin-top: 6px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.2rem;
            }
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-item {
                border-right: none;
                border-bottom: 1px solid var(--color-border);
            }
            .stat-item:nth-child(3),
            .stat-item:nth-child(4) {
                border-bottom: none;
            }
            .advantages-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-cta-btn.desktop-only {
                display: none;
            }
            .navbar-toggler-custom {
                display: block;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-section {
                min-height: 500px;
                padding-top: calc(var(--header-height) + 30px);
                padding-bottom: 50px;
            }
            .cards-grid {
                grid-template-columns: 1fr;
            }
            .section-padding {
                padding: 50px 0;
            }
            .section-padding-lg {
                padding: 60px 0;
            }
            .section-title {
                font-size: 1.55rem;
            }
            .image-text-block,
            .image-text-block.reverse {
                flex-direction: column;
                gap: 28px;
            }
            .it-text h3 {
                font-size: 1.3rem;
            }
            .advantages-grid {
                grid-template-columns: 1fr;
            }
            .cta-banner {
                padding: 34px 22px;
            }
            .cta-banner h3 {
                font-size: 1.35rem;
            }
            .footer-inner {
                flex-direction: column;
                text-align: center;
            }
            .footer-links {
                justify-content: center;
            }
            .btn-primary-gold,
            .btn-outline-light-custom {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.45rem;
            }
            .hero-subtitle {
                font-size: 0.9rem;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .cms-list-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .feature-card {
                padding: 22px 18px;
            }
        }

        /* ========== UTILITY ========== */
        .text-gold {
            color: var(--color-gold-light);
        }
        .bg-surface {
            background: var(--color-surface);
        }
        .bg-surface-elevated {
            background: var(--color-surface-elevated);
        }
        .border-top-custom {
            border-top: 1px solid var(--color-border);
        }
        .border-bottom-custom {
            border-bottom: 1px solid var(--color-border);
        }

/* roulang page: article */
:root {
            --color-primary: #1a3c5e;
            --color-primary-dark: #0f2a43;
            --color-accent: #e8a817;
            --color-accent-hover: #c98f14;
            --color-accent-light: #fdf3d1;
            --color-bg: #f8f9fb;
            --color-white: #ffffff;
            --color-text: #1e293b;
            --color-text-soft: #64748b;
            --color-text-muted: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --color-card-bg: #ffffff;
            --color-footer-bg: #0f2a43;
            --color-footer-text: #cbd5e1;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.07);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
            --shadow-xl: 0 16px 48px rgba(0,0,0,0.12);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, sans-serif;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
            --max-width-container: 1200px;
            --max-width-article: 780px;
            --header-height: 68px;
        }

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

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

        body {
            font-family: var(--font-sans);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
        }

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

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

        /* ========== HEADER & NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .header-inner {
            width: 100%;
            max-width: var(--max-width-container);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 9px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            white-space: nowrap;
            transition: color var(--transition-fast);
            letter-spacing: -0.01em;
        }

        .nav-logo:hover {
            color: var(--color-primary-dark);
        }

        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-accent) 0%, #d4950e 100%);
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 1rem;
        }

        .nav-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-links li a {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 20px;
            color: var(--color-text-soft);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links li a:hover {
            color: var(--color-primary);
            background: #f1f5f9;
        }

        .nav-links li a.active {
            color: var(--color-primary-dark);
            background: #eef2f7;
            font-weight: 600;
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 22px;
            background: linear-gradient(135deg, var(--color-accent) 0%, #d4950e 100%);
            color: #fff;
            font-weight: 600;
            font-size: 0.93rem;
            border-radius: 24px;
            white-space: nowrap;
            transition: all var(--transition-normal);
            box-shadow: 0 2px 10px rgba(232,168,23,0.3);
            border: none;
            cursor: pointer;
        }

        .nav-cta-btn:hover {
            background: linear-gradient(135deg, #d4950e 0%, #b87c0b 100%);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(232,168,23,0.4);
        }

        .navbar-toggler-custom {
            display: none;
            background: none;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            font-size: 1.25rem;
            color: var(--color-text);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .navbar-toggler-custom:hover {
            background: #f8fafc;
            border-color: #cbd5e1;
        }

        /* ========== ARTICLE HERO ========== */
        .article-hero {
            position: relative;
            background: linear-gradient(170deg, #1a3c5e 0%, #0f2a43 40%, #162d45 100%);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 72px 24px 60px;
            text-align: center;
            color: #fff;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15,42,67,0.65);
            z-index: 1;
        }

        .article-hero-inner {
            position: relative;
            z-index: 2;
            max-width: var(--max-width-article);
            margin: 0 auto;
        }

        .article-hero .category-tag {
            display: inline-block;
            padding: 5px 16px;
            background: rgba(232,168,23,0.85);
            color: #1a1a1a;
            font-weight: 600;
            font-size: 0.85rem;
            border-radius: 20px;
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }

        .article-hero h1 {
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.35;
            margin: 0 0 16px;
            letter-spacing: -0.01em;
        }

        .article-hero .article-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 18px;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.78);
        }

        .article-hero .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .article-hero .article-meta i {
            font-size: 0.8rem;
            opacity: 0.8;
        }

        /* ========== ARTICLE BODY ========== */
        .article-main {
            flex: 1;
            padding: 48px 24px 60px;
        }

        .article-container {
            max-width: var(--max-width-article);
            margin: 0 auto;
            background: var(--color-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 40px 48px 48px;
        }

        .article-body {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--color-text);
        }

        .article-body h2 {
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--color-primary);
            margin: 2em 0 0.7em;
            padding-bottom: 0.4em;
            border-bottom: 2px solid var(--color-border-light);
        }

        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--color-text);
            margin: 1.6em 0 0.5em;
        }

        .article-body p {
            margin: 0 0 1.2em;
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 1.2em;
            padding-left: 1.5em;
        }

        .article-body li {
            margin-bottom: 0.45em;
        }

        .article-body blockquote {
            margin: 1.8em 0;
            padding: 18px 28px;
            background: #fdf8ed;
            border-left: 4px solid var(--color-accent);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: #5c4a1f;
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 1.6em auto;
            box-shadow: var(--shadow-md);
        }

        .article-body a {
            color: var(--color-primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body a:hover {
            color: var(--color-accent-hover);
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5em 0;
        }

        .article-body table th,
        .article-body table td {
            padding: 10px 14px;
            border: 1px solid var(--color-border);
            text-align: left;
        }

        .article-body table th {
            background: #f8fafc;
            font-weight: 600;
        }

        /* ========== ARTICLE FOOTER META ========== */
        .article-footer-meta {
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--color-border-light);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 14px;
            font-size: 0.9rem;
            color: var(--color-text-soft);
        }

        .article-footer-meta .back-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-primary);
            font-weight: 500;
            transition: color var(--transition-fast);
        }

        .article-footer-meta .back-link:hover {
            color: var(--color-accent-hover);
        }

        .share-btns {
            display: flex;
            gap: 8px;
        }

        .share-btns button {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid var(--color-border);
            background: var(--color-white);
            color: var(--color-text-soft);
            cursor: pointer;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .share-btns button:hover {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }

        /* ========== RELATED POSTS ========== */
        .related-section {
            max-width: var(--max-width-container);
            margin: 0 auto;
            padding: 0 24px 60px;
        }

        .related-section .section-label {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 28px;
            position: relative;
            padding-left: 18px;
        }

        .related-section .section-label::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 4px;
            background: var(--color-accent);
            border-radius: 2px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: #dde4ef;
        }

        .related-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }

        .related-card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-card-tag {
            font-size: 0.78rem;
            color: var(--color-accent);
            font-weight: 600;
            margin-bottom: 6px;
            letter-spacing: 0.03em;
        }

        .related-card-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-text);
            margin: 0 0 8px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card-desc {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            line-height: 1.55;
            margin: 0;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card-link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            margin-top: 12px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-primary);
            transition: color var(--transition-fast);
        }

        .related-card-link:hover {
            color: var(--color-accent-hover);
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(160deg, #1a3c5e 0%, #0f2a43 100%);
            padding: 56px 24px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            z-index: 1;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 620px;
            margin: 0 auto;
        }

        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin: 0 0 12px;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255,255,255,0.8);
            margin: 0 0 28px;
            line-height: 1.6;
        }

        .cta-btn-large {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            padding: 14px 36px;
            background: linear-gradient(135deg, var(--color-accent) 0%, #d4950e 100%);
            color: #1a1a1a;
            font-weight: 700;
            font-size: 1.05rem;
            border-radius: 28px;
            transition: all var(--transition-normal);
            box-shadow: 0 6px 24px rgba(232,168,23,0.35);
            border: none;
            cursor: pointer;
        }

        .cta-btn-large:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(232,168,23,0.5);
            color: #1a1a1a;
        }

        /* ========== NOT FOUND ========== */
        .not-found-block {
            text-align: center;
            padding: 80px 24px;
            max-width: 520px;
            margin: 0 auto;
        }

        .not-found-block .nf-icon {
            font-size: 3.5rem;
            color: var(--color-text-muted);
            margin-bottom: 20px;
        }

        .not-found-block h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 10px;
        }

        .not-found-block p {
            color: var(--color-text-soft);
            margin: 0 0 24px;
            font-size: 1rem;
        }

        .not-found-block .back-home-btn {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 11px 26px;
            background: var(--color-primary);
            color: #fff;
            border-radius: 24px;
            font-weight: 600;
            transition: all var(--transition-fast);
        }

        .not-found-block .back-home-btn:hover {
            background: var(--color-primary-dark);
            color: #fff;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-footer-bg);
            color: var(--color-footer-text);
            padding: 36px 24px 30px;
            margin-top: auto;
        }

        .footer-inner {
            max-width: var(--max-width-container);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 18px;
        }

        .footer-brand {
            font-weight: 700;
            font-size: 1.1rem;
            color: #fff;
            letter-spacing: 0.02em;
        }

        .footer-links {
            display: flex;
            gap: 22px;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: var(--color-footer-text);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

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

        .footer-copy {
            font-size: 0.82rem;
            color: #94a3b8;
            width: 100%;
            text-align: center;
            margin-top: 6px;
        }

        /* ========== MOBILE NAV OVERLAY ========== */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0,0,0,0.5);
            z-index: 1040;
        }

        .mobile-nav-overlay.active {
            display: block;
        }

        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: var(--header-height);
            right: 0;
            width: 280px;
            bottom: 0;
            background: var(--color-white);
            z-index: 1045;
            box-shadow: -4px 0 20px rgba(0,0,0,0.15);
            padding: 20px 18px;
            flex-direction: column;
            gap: 4px;
            transform: translateX(100%);
            transition: transform var(--transition-normal);
        }

        .mobile-nav-panel.active {
            display: flex;
            transform: translateX(0);
        }

        .mobile-nav-panel a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            color: var(--color-text);
            font-weight: 500;
            font-size: 1rem;
            transition: all var(--transition-fast);
        }

        .mobile-nav-panel a:hover,
        .mobile-nav-panel a.active {
            background: #f1f5f9;
            color: var(--color-primary-dark);
            font-weight: 600;
        }

        .mobile-nav-panel .mobile-cta {
            margin-top: 16px;
            display: block;
            text-align: center;
            padding: 12px 20px;
            background: linear-gradient(135deg, var(--color-accent) 0%, #d4950e 100%);
            color: #1a1a1a;
            font-weight: 700;
            border-radius: 24px;
        }

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

            .article-container {
                padding: 32px 28px;
            }

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

        @media (max-width: 768px) {
            .desktop-only {
                display: none !important;
            }

            .nav-links {
                display: none;
            }

            .navbar-toggler-custom {
                display: flex;
                align-items: center;
                justify-content: center;
            }

            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .article-hero {
                padding: 48px 20px 40px;
            }

            .article-hero h1 {
                font-size: 1.45rem;
            }

            .article-container {
                padding: 24px 18px;
                border-radius: var(--radius-md);
            }

            .article-body {
                font-size: 0.98rem;
            }

            .article-main {
                padding: 28px 14px 40px;
            }

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

            .cta-btn-large {
                padding: 12px 26px;
                font-size: 0.95rem;
            }

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

            .footer-links {
                justify-content: center;
            }

            .article-footer-meta {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                padding: 0 14px;
                gap: 12px;
            }

            .nav-logo {
                font-size: 1.05rem;
                gap: 6px;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.85rem;
            }

            .article-hero h1 {
                font-size: 1.25rem;
            }

            .article-hero .article-meta {
                font-size: 0.8rem;
                gap: 10px;
            }

            .article-container {
                padding: 18px 14px;
            }

            .article-body h2 {
                font-size: 1.25rem;
            }

            .article-body h3 {
                font-size: 1.1rem;
            }

            .related-section .section-label {
                font-size: 1.15rem;
            }

            .mobile-nav-panel {
                width: 260px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #0f1f38;
            --color-primary-light: #152a4a;
            --color-accent: #d4a029;
            --color-accent-hover: #e8b835;
            --color-accent-dark: #b8891a;
            --color-bg: #f5f3ee;
            --color-white: #ffffff;
            --color-dark: #0a0f16;
            --color-text: #1e1e1e;
            --color-text-weak: #6b7280;
            --color-border: #e5e0d8;
            --color-card-bg: #ffffff;
            --color-footer-bg: #0d1520;
            --color-footer-text: #b0b8c1;
            --color-success: #10b981;
            --color-danger: #ef4444;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --max-width: 1260px;
            --header-height: 72px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

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

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

        p {
            margin: 0;
        }

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

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(15, 31, 56, 0.97);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-base);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: var(--max-width);
            width: 100%;
            margin: 0 auto;
            padding: 0 24px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.3px;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
        }

        .nav-logo:hover {
            opacity: 0.88;
            color: #ffffff;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--color-accent);
            border-radius: var(--radius-sm);
            font-size: 1rem;
            color: #0f1f38;
            flex-shrink: 0;
        }

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

        .nav-links li a {
            display: block;
            padding: 10px 18px;
            font-size: 0.95rem;
            font-weight: 500;
            color: #ccd6e0;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links li a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-links li a.active {
            color: #ffffff;
            background: rgba(212, 160, 41, 0.18);
            font-weight: 600;
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            font-size: 0.93rem;
            font-weight: 600;
            color: #0f1f38;
            background: var(--color-accent);
            border-radius: 50px;
            transition: all var(--transition-base);
            white-space: nowrap;
            border: none;
        }

        .nav-cta-btn:hover {
            background: var(--color-accent-hover);
            color: #0f1f38;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(212, 160, 41, 0.35);
        }

        .nav-cta-btn:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(212, 160, 41, 0.25);
        }

        .navbar-toggler-custom {
            display: none;
            background: none;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #ffffff;
            font-size: 1.35rem;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            line-height: 1;
        }

        .navbar-toggler-custom:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.45);
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            background-color: #0f1f38;
            overflow: hidden;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg,
                    rgba(10, 20, 35, 0.82) 0%,
                    rgba(15, 31, 56, 0.9) 60%,
                    rgba(10, 16, 22, 0.95) 100%);
            z-index: 1;
        }

        .hero-accent-line {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg,
                    transparent 0%,
                    var(--color-accent) 20%,
                    var(--color-accent) 80%,
                    transparent 100%);
            z-index: 3;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 780px;
            padding: 60px 24px;
        }

        .hero-badge {
            display: inline-block;
            padding: 7px 18px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            color: var(--color-accent);
            border: 1px solid rgba(212, 160, 41, 0.4);
            border-radius: 50px;
            margin-bottom: 20px;
            background: rgba(212, 160, 41, 0.08);
        }

        .hero-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 16px;
            letter-spacing: 0.2px;
            line-height: 1.25;
        }

        .hero-content .hero-subtitle {
            font-size: 1.15rem;
            color: #d5dde8;
            line-height: 1.75;
            margin-bottom: 32px;
            max-width: 620px;
            margin-left: auto;
            margin-right: auto;
        }

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

        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 700;
            color: #0f1f38;
            background: var(--color-accent);
            border-radius: 50px;
            border: none;
            transition: all var(--transition-base);
            letter-spacing: 0.3px;
        }

        .btn-hero-primary:hover {
            background: var(--color-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(212, 160, 41, 0.4);
            color: #0f1f38;
        }

        .btn-hero-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(212, 160, 41, 0.3);
        }

        .btn-hero-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 600;
            color: #ffffff;
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.5);
            border-radius: 50px;
            transition: all var(--transition-base);
            letter-spacing: 0.3px;
        }

        .btn-hero-outline:hover {
            border-color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
            transform: translateY(-2px);
        }

        .hero-stats-row {
            display: flex;
            gap: 40px;
            justify-content: center;
            margin-top: 36px;
            flex-wrap: wrap;
        }

        .hero-stat-item {
            text-align: center;
        }

        .hero-stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1;
        }

        .hero-stat-label {
            font-size: 0.82rem;
            color: #a0aab5;
            margin-top: 4px;
            letter-spacing: 0.3px;
        }

        /* ========== SECTIONS ========== */
        .section-padding {
            padding: 70px 0;
        }

        .section-padding-sm {
            padding: 50px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 10px;
            letter-spacing: 0.2px;
        }

        .section-header .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-weak);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 1px;
            color: var(--color-accent-dark);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        /* ========== CARDS ========== */
        .card-sport {
            background: var(--color-card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
            height: 100%;
            box-shadow: var(--shadow-sm);
        }

        .card-sport:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: #d5cec4;
        }

        .card-sport-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #eef1f5;
        }

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

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

        .card-sport-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 5px 12px;
            font-size: 0.75rem;
            font-weight: 700;
            background: var(--color-accent);
            color: #0f1f38;
            border-radius: 50px;
            letter-spacing: 0.4px;
            z-index: 2;
        }

        .card-sport-body {
            padding: 20px 22px 24px;
        }

        .card-sport-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
        }

        .card-sport-body p {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            line-height: 1.6;
            margin-bottom: 14px;
        }

        .card-sport-meta {
            display: flex;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--color-text-weak);
        }

        .card-sport-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .card-sport-meta i {
            color: var(--color-accent-dark);
            font-size: 0.7rem;
        }

        /* ========== ADVANTAGE CARDS ========== */
        .advantage-card {
            background: var(--color-card-bg);
            border-radius: var(--radius-lg);
            padding: 32px 26px;
            border: 1px solid var(--color-border);
            text-align: center;
            transition: all var(--transition-base);
            height: 100%;
            box-shadow: var(--shadow-sm);
        }

        .advantage-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: #d5cec4;
        }

        .advantage-icon-circle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: rgba(15, 31, 56, 0.06);
            font-size: 1.5rem;
            color: var(--color-accent-dark);
            margin-bottom: 16px;
            transition: all var(--transition-base);
        }

        .advantage-card:hover .advantage-icon-circle {
            background: rgba(212, 160, 41, 0.15);
            color: #b8891a;
        }

        .advantage-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
        }

        .advantage-card p {
            font-size: 0.88rem;
            color: var(--color-text-weak);
            line-height: 1.6;
        }

        /* ========== PROCESS STEPS ========== */
        .process-step-wrap {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 20px 0;
            position: relative;
        }

        .process-step-number {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--color-primary);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 800;
            position: relative;
            z-index: 1;
        }

        .process-step-content h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 4px;
        }

        .process-step-content p {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            line-height: 1.6;
        }

        .process-connector {
            position: absolute;
            left: 25px;
            top: 72px;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--color-accent) 0%, var(--color-border) 100%);
            z-index: 0;
        }

        .process-step-wrap:last-child .process-connector {
            display: none;
        }

        /* ========== DARK SECTION ========== */
        .dark-section {
            background: var(--color-primary);
            color: #ffffff;
            position: relative;
            overflow: hidden;
        }

        .dark-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(212, 160, 41, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .dark-section .section-header h2 {
            color: #ffffff;
        }

        .dark-section .section-header .section-subtitle {
            color: #b8c4d4;
        }

        .dark-section .section-tag {
            color: var(--color-accent);
        }

        /* ========== FAQ ========== */
        .faq-accordion .accordion-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md) !important;
            margin-bottom: 10px;
            overflow: hidden;
            background: var(--color-card-bg);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
        }

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

        .faq-accordion .accordion-button {
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-primary);
            background: var(--color-card-bg);
            padding: 18px 22px;
            box-shadow: none;
            border-radius: var(--radius-md) !important;
            transition: all var(--transition-fast);
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--color-accent-dark);
            background: #fefdf9;
            box-shadow: none;
            border-bottom: 1px solid var(--color-border);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(212, 160, 41, 0.2);
            border-color: var(--color-accent);
        }

        .faq-accordion .accordion-button::after {
            background-size: 14px;
            transition: transform var(--transition-base);
        }

        .faq-accordion .accordion-body {
            padding: 18px 22px;
            font-size: 0.93rem;
            color: var(--color-text-weak);
            line-height: 1.75;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, #0f1f38 0%, #152a4a 50%, #0f1f38 100%);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            color: #ffffff;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-xl);
        }

        .cta-section::after {
            content: '';
            position: absolute;
            top: -40px;
            left: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(212, 160, 41, 0.2) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section h3 {
            font-size: 1.7rem;
            font-weight: 800;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 1rem;
            color: #c5cfdc;
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            position: relative;
            z-index: 1;
        }

        .cta-section .btn-hero-primary {
            position: relative;
            z-index: 1;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-footer-bg);
            color: var(--color-footer-text);
            padding: 40px 0 28px;
            text-align: center;
            border-top: 3px solid rgba(212, 160, 41, 0.3);
        }

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

        .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: #ffffff;
            display: block;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .footer-links {
            display: flex;
            gap: 24px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }

        .footer-links a {
            color: var(--color-footer-text);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

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

        .footer-copy {
            font-size: 0.8rem;
            color: #6e7a8a;
            letter-spacing: 0.3px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .hero-content .hero-subtitle {
                font-size: 1rem;
            }
            .hero-stats-row {
                gap: 24px;
            }
            .hero-stat-number {
                font-size: 1.6rem;
            }
            .section-padding {
                padding: 50px 0;
            }
            .section-header h2 {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 768px) {
            .desktop-only {
                display: none !important;
            }
            .navbar-toggler-custom {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(15, 31, 56, 0.98);
                backdrop-filter: blur(18px);
                flex-direction: column;
                padding: 16px 24px;
                gap: 2px;
                border-bottom: 2px solid rgba(212, 160, 41, 0.4);
                z-index: 1049;
            }
            .nav-links.show {
                display: flex;
            }
            .nav-links li a {
                padding: 14px 16px;
                font-size: 1rem;
                border-radius: var(--radius-sm);
            }
            .hero-section {
                min-height: 420px;
            }
            .hero-content {
                padding: 40px 16px;
            }
            .hero-content h1 {
                font-size: 1.75rem;
            }
            .hero-content .hero-subtitle {
                font-size: 0.9rem;
            }
            .hero-stats-row {
                gap: 16px;
                margin-top: 24px;
            }
            .hero-stat-number {
                font-size: 1.35rem;
            }
            .hero-stat-label {
                font-size: 0.72rem;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .section-padding {
                padding: 40px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h3 {
                font-size: 1.35rem;
            }
            .process-step-wrap {
                gap: 14px;
            }
            .process-step-number {
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
            .process-connector {
                left: 19px;
                top: 60px;
            }
            .card-sport-body {
                padding: 14px 16px 18px;
            }
            .advantage-card {
                padding: 24px 18px;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.45rem;
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: center;
            }
            .hero-stats-row {
                flex-direction: column;
                gap: 10px;
            }
            .hero-badge {
                font-size: 0.72rem;
                padding: 5px 14px;
            }
            .container-custom {
                padding: 0 14px;
            }
            .header-inner {
                padding: 0 14px;
            }
            .nav-logo {
                font-size: 1.1rem;
            }
            .footer-links {
                gap: 14px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #0b1a35;
            --primary-light: #132548;
            --primary-mid: #1b3058;
            --accent: #c48a2c;
            --accent-light: #d9a545;
            --accent-glow: #e8c06a;
            --bg-page: #f5f6f8;
            --bg-white: #ffffff;
            --bg-light: #f0f2f5;
            --bg-dark-section: #0b1a35;
            --text-dark: #1a1d28;
            --text-body: #3d4252;
            --text-muted: #6b7080;
            --text-light: #a8adb8;
            --text-on-dark: #e8eaef;
            --border: #dde0e6;
            --border-light: #eceef3;
            --radius-xl: 16px;
            --radius-lg: 12px;
            --radius-md: 8px;
            --radius-sm: 6px;
            --radius-pill: 50px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 18px rgba(0, 0, 0, 0.07);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 14px 40px rgba(0, 0, 0, 0.13);
            --shadow-hover: 0 10px 32px rgba(0, 0, 0, 0.14);
            --transition-fast: 0.18s ease;
            --transition: 0.3s ease;
            --transition-slow: 0.45s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--bg-page);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
        }
        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-dark);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 0;
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }
        @media (min-width: 1400px) {
            .container {
                max-width: 1260px;
            }
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(11, 26, 53, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1260px;
            margin: 0 auto;
            padding: 0 24px;
            height: 64px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }
        .nav-logo:hover {
            color: var(--accent-light);
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: #fff;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-links li a {
            display: block;
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            font-size: 0.92rem;
            font-weight: 500;
            color: #c8ccd4;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links li a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.07);
        }
        .nav-links li a.active {
            color: #ffffff;
            background: rgba(196, 138, 44, 0.18);
            font-weight: 600;
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            font-size: 0.9rem;
            font-weight: 600;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: #fff;
            white-space: nowrap;
            transition: all var(--transition);
            box-shadow: 0 2px 10px rgba(196, 138, 44, 0.3);
            letter-spacing: 0.02em;
        }
        .nav-cta-btn:hover {
            background: linear-gradient(135deg, var(--accent-light), var(--accent-glow));
            color: #fff;
            box-shadow: 0 4px 18px rgba(196, 138, 44, 0.45);
            transform: translateY(-1px);
        }
        .navbar-toggler-custom {
            display: none;
            background: transparent;
            border: none;
            color: #ffffff;
            font-size: 1.35rem;
            padding: 8px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .navbar-toggler-custom:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .desktop-only {
            display: inline-flex;
        }
        @media (max-width: 991px) {
            .desktop-only {
                display: none;
            }
            .navbar-toggler-custom {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                flex-direction: column;
                background: rgba(11, 26, 53, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                padding: 12px 20px;
                gap: 2px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                box-shadow: var(--shadow-md);
                z-index: 1049;
            }
            .nav-links.show {
                display: flex;
            }
            .nav-links li {
                width: 100%;
            }
            .nav-links li a {
                padding: 12px 16px;
                border-radius: var(--radius-md);
                font-size: 0.95rem;
                width: 100%;
            }
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            background-attachment: fixed;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(160deg, rgba(11, 26, 53, 0.88) 0%, rgba(11, 26, 53, 0.72) 50%, rgba(11, 26, 53, 0.85) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
            padding: 60px 0;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            font-size: 0.82rem;
            font-weight: 600;
            background: rgba(196, 138, 44, 0.2);
            color: var(--accent-glow);
            border: 1px solid rgba(196, 138, 44, 0.3);
            margin-bottom: 20px;
            letter-spacing: 0.03em;
        }
        .hero-section h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
            line-height: 1.25;
        }
        .hero-section .hero-subtitle {
            font-size: 1.12rem;
            color: #c8cdd6;
            margin-bottom: 28px;
            line-height: 1.7;
            max-width: 580px;
        }
        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 30px;
            border-radius: var(--radius-pill);
            font-size: 1rem;
            font-weight: 600;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: #fff;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(196, 138, 44, 0.35);
            letter-spacing: 0.02em;
        }
        .btn-hero-primary:hover {
            background: linear-gradient(135deg, var(--accent-light), var(--accent-glow));
            color: #fff;
            box-shadow: 0 6px 24px rgba(196, 138, 44, 0.5);
            transform: translateY(-2px);
        }
        .btn-hero-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 30px;
            border-radius: var(--radius-pill);
            font-size: 1rem;
            font-weight: 600;
            background: transparent;
            color: #ffffff;
            border: 2px solid rgba(255, 255, 255, 0.4);
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }
        .btn-hero-outline:hover {
            border-color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
        }
        .hero-trust-row {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }
        .hero-trust-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: #bcc2cc;
            font-weight: 500;
        }
        .hero-trust-item i {
            color: var(--accent-light);
            font-size: 0.9rem;
        }
        @media (max-width: 991px) {
            .hero-section {
                min-height: 440px;
                background-attachment: scroll;
            }
            .hero-section h1 {
                font-size: 2.1rem;
            }
            .hero-section .hero-subtitle {
                font-size: 1rem;
            }
            .hero-content {
                padding: 40px 0;
            }
        }
        @media (max-width: 576px) {
            .hero-section {
                min-height: 380px;
            }
            .hero-section h1 {
                font-size: 1.7rem;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .hero-cta-group .btn-hero-primary,
            .hero-cta-group .btn-hero-outline {
                width: 100%;
                justify-content: center;
            }
            .hero-trust-row {
                gap: 14px;
            }
        }

        /* Section Common */
        .section-block {
            padding: 70px 0;
        }
        .section-block.section-alt {
            background-color: var(--bg-white);
        }
        .section-block.section-dark {
            background-color: var(--bg-dark-section);
            color: var(--text-on-dark);
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 10px;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }
        .section-desc {
            font-size: 1.02rem;
            color: var(--text-muted);
            max-width: 620px;
            margin: 0 auto 36px;
            line-height: 1.7;
        }
        .section-dark .section-title {
            color: #ffffff;
        }
        .section-dark .section-desc {
            color: var(--text-light);
        }
        @media (max-width: 768px) {
            .section-block {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.55rem;
            }
            .section-desc {
                font-size: 0.95rem;
                margin-bottom: 24px;
            }
        }

        /* Stats Row */
        .stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
        }
        .stat-card {
            flex: 1 1 180px;
            min-width: 150px;
            max-width: 220px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-number .accent-num {
            color: var(--accent);
        }
        .stat-label {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-top: 6px;
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .stats-row {
                gap: 12px;
            }
            .stat-card {
                flex: 1 1 130px;
                min-width: 120px;
                padding: 20px 14px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }

        /* Entertainment Cards Grid */
        .entertainment-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .ent-card {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .ent-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--border);
        }
        .ent-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .ent-card-body {
            padding: 22px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .ent-card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
        }
        .ent-card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
            flex: 1;
        }
        .ent-card-tag {
            display: inline-block;
            align-self: flex-start;
            font-size: 0.76rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            background: rgba(196, 138, 44, 0.08);
            color: var(--accent);
            margin-top: 12px;
            letter-spacing: 0.03em;
        }
        @media (max-width: 991px) {
            .entertainment-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .ent-card-img {
                height: 170px;
            }
        }
        @media (max-width: 576px) {
            .entertainment-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .ent-card-img {
                height: 200px;
            }
        }

        /* Advantage Section */
        .advantage-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .adv-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .adv-card:hover {
            box-shadow: var(--shadow);
            border-color: var(--border);
        }
        .adv-icon-circle {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.3rem;
            background: rgba(196, 138, 44, 0.1);
            color: var(--accent);
        }
        .adv-info h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-dark);
        }
        .adv-info p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .advantage-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .adv-card {
                padding: 20px 16px;
            }
        }

        /* Process Steps */
        .process-steps {
            display: flex;
            flex-wrap: wrap;
            gap: 0;
            justify-content: center;
            position: relative;
        }
        .process-step {
            flex: 1 1 180px;
            min-width: 140px;
            max-width: 220px;
            text-align: center;
            padding: 20px 16px;
            position: relative;
        }
        .step-circle {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 1.4rem;
            font-weight: 700;
            background: var(--primary);
            color: #ffffff;
            position: relative;
            z-index: 2;
            box-shadow: var(--shadow);
        }
        .step-circle.accent-circle {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
        }
        .process-step h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text-dark);
        }
        .process-step p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }
        .process-connector {
            position: absolute;
            top: 50px;
            left: 60%;
            width: 80%;
            height: 3px;
            background: linear-gradient(90deg, var(--border), var(--accent-light), var(--border));
            z-index: 1;
            display: none;
        }
        @media (min-width: 769px) {
            .process-connector {
                display: block;
            }
        }
        @media (max-width: 768px) {
            .process-steps {
                gap: 20px;
            }
            .process-step {
                flex: 1 1 100%;
                max-width: 100%;
                padding: 10px 16px;
            }
        }

        /* Security Section */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .security-card {
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition);
        }
        .security-card:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.16);
        }
        .security-card .sec-icon {
            font-size: 2rem;
            color: var(--accent-light);
            margin-bottom: 14px;
        }
        .security-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 8px;
        }
        .security-card p {
            font-size: 0.88rem;
            color: var(--text-light);
            margin: 0;
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .security-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--border);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            background: transparent;
            text-align: left;
            transition: background var(--transition-fast);
            border: none;
            cursor: pointer;
        }
        .faq-question:hover {
            background: var(--bg-light);
        }
        .faq-question i {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: transform var(--transition);
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-answer {
            padding: 0 20px 18px;
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.show {
            display: block;
        }

        /* CTA Section */
        .cta-section {
            background: url('/assets/images/backpic/back-3.webp') center / cover no-repeat;
            position: relative;
            padding: 80px 0;
            text-align: center;
        }
        .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(160deg, rgba(11, 26, 53, 0.9) 0%, rgba(11, 26, 53, 0.78) 100%);
            z-index: 1;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 650px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 12px;
        }
        .cta-inner p {
            font-size: 1.05rem;
            color: #c8cdd6;
            margin-bottom: 28px;
            line-height: 1.7;
        }
        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 15px 36px;
            border-radius: var(--radius-pill);
            font-size: 1.05rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: #fff;
            transition: all var(--transition);
            box-shadow: 0 6px 22px rgba(196, 138, 44, 0.4);
            letter-spacing: 0.02em;
        }
        .btn-cta-large:hover {
            background: linear-gradient(135deg, var(--accent-light), var(--accent-glow));
            color: #fff;
            box-shadow: 0 8px 28px rgba(196, 138, 44, 0.55);
            transform: translateY(-2px);
        }
        @media (max-width: 576px) {
            .cta-section {
                padding: 50px 0;
            }
            .cta-inner h2 {
                font-size: 1.55rem;
            }
            .btn-cta-large {
                width: 100%;
                justify-content: center;
            }
        }

        /* Footer */
        .site-footer {
            background: #080e1a;
            padding: 40px 0;
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-inner {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .footer-brand {
            display: block;
            font-size: 1.15rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 22px;
            margin-bottom: 16px;
        }
        .footer-links a {
            font-size: 0.9rem;
            color: #a0a5b0;
            transition: color var(--transition-fast);
            font-weight: 500;
        }
        .footer-links a:hover {
            color: var(--accent-light);
        }
        .footer-copy {
            font-size: 0.82rem;
            color: #5e6470;
        }
        @media (max-width: 576px) {
            .site-footer {
                padding: 30px 0;
            }
            .footer-links {
                gap: 14px;
            }
        }