/* roulang page: index */
:root {
            --color-primary: #0d2137;
            --color-primary-light: #1a3854;
            --color-accent: #c89d5c;
            --color-accent-light: #d9b87c;
            --color-accent-dark: #a87a3e;
            --color-highlight: #d4343e;
            --color-bg: #ffffff;
            --color-bg-light: #f6f7f9;
            --color-bg-warm: #faf9f6;
            --color-text: #1a1a1a;
            --color-text-secondary: #5a5a5a;
            --color-text-muted: #8a8a8a;
            --color-border: #e2e4e8;
            --color-border-light: #eef0f3;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --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, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --transition-fast: 0.18s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1240px;
            --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-body);
            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;
        }

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

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

        a:hover {
            text-decoration: none;
        }

        button {
            cursor: pointer;
            font-family: var(--font-body);
        }

        input,
        select,
        textarea {
            font-family: var(--font-body);
        }

        /* Container */
        .container-custom {
            width: 100%;
            max-width: var(--max-width);
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (min-width: 1400px) {
            .container-custom {
                max-width: 1280px;
            }
        }

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

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            height: 100%;
        }

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

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            letter-spacing: 0;
            flex-shrink: 0;
        }

        .logo-text {
            font-family: var(--font-heading);
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .logo-wrap a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: inherit;
            text-decoration: none;
        }

        .nav-tabs-row {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding: 2px;
        }

        .nav-tabs-row::-webkit-scrollbar {
            display: none;
        }

        .nav-chip {
            display: inline-flex;
            align-items: center;
            padding: 9px 18px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            background: transparent;
            white-space: nowrap;
            transition: all var(--transition-fast);
            border: 1.5px solid transparent;
            letter-spacing: 0.01em;
            cursor: pointer;
            user-select: none;
            position: relative;
        }

        .nav-chip:hover {
            color: var(--color-primary);
            background: #f0f3f7;
            border-color: #e5e9ef;
        }

        .nav-chip.active {
            color: #ffffff;
            background: var(--color-primary);
            border-color: var(--color-primary);
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(13, 33, 55, 0.25);
        }

        .nav-chip.highlight-chip {
            color: var(--color-accent-dark);
            background: #fdf8f0;
            border-color: #f0e2cc;
            font-weight: 600;
        }

        .nav-chip.highlight-chip:hover {
            background: #fdf3e4;
            border-color: var(--color-accent);
            color: var(--color-accent-dark);
        }

        .header-cta {
            flex-shrink: 0;
            margin-left: 12px;
        }

        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            background: var(--color-accent);
            color: #fff;
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .btn-header:hover {
            background: var(--color-accent-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(200, 157, 92, 0.35);
        }

        /* Mobile nav */
        .mobile-nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--color-primary);
            padding: 8px;
            border-radius: var(--radius-sm);
            line-height: 1;
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.45);
            z-index: 1040;
            opacity: 0;
            transition: opacity var(--transition-base);
            pointer-events: none;
        }

        .mobile-nav-overlay.open {
            display: block;
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: var(--header-height);
            right: -320px;
            width: 300px;
            max-width: 85vw;
            bottom: 0;
            background: #fff;
            z-index: 1045;
            padding: 20px 16px;
            overflow-y: auto;
            transition: right var(--transition-slow);
            box-shadow: var(--shadow-xl);
            flex-direction: column;
            gap: 6px;
        }

        .mobile-nav-panel.open {
            right: 0;
        }

        .mobile-nav-panel .nav-chip {
            display: block;
            text-align: center;
            border-radius: var(--radius-md);
            padding: 13px 18px;
            font-size: 0.95rem;
            width: 100%;
            border: 1.5px solid var(--color-border-light);
        }

        .mobile-nav-panel .nav-chip.active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }

        @media (max-width: 1024px) {
            .nav-tabs-row {
                gap: 3px;
            }
            .nav-chip {
                padding: 7px 14px;
                font-size: 0.82rem;
            }
            .header-cta .btn-header {
                padding: 8px 16px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 768px) {
            .nav-tabs-row {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .mobile-nav-toggle {
                display: block;
            }
            .mobile-nav-panel {
                display: flex;
            }
            .site-header {
                height: 60px;
            }
            :root {
                --header-height: 60px;
            }
        }

        /* ============ HERO ============ */
        .hero-section {
            position: relative;
            background: linear-gradient(160deg, #0d2137 0%, #132d4a 35%, #1a3c5e 65%, #0d2137 100%);
            min-height: 580px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-bg-img {
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.22;
            z-index: 0;
            pointer-events: none;
        }

        .hero-overlay-pattern {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(200, 157, 92, 0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(255, 255, 255, 0.03) 0%, transparent 50%);
            z-index: 1;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding: 60px 0;
            color: #ffffff;
        }

        .hero-badge {
            display: inline-block;
            padding: 7px 18px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.22);
            font-size: 0.85rem;
            font-weight: 500;
            color: #e8d5b8;
            letter-spacing: 0.03em;
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
        }

        .hero-title {
            font-family: var(--font-heading);
            font-size: 3rem;
            font-weight: 800;
            letter-spacing: 0.03em;
            margin-bottom: 14px;
            line-height: 1.2;
            color: #ffffff;
        }

        .hero-title .accent {
            color: var(--color-accent-light);
        }

        .hero-subtitle {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.82);
            margin-bottom: 20px;
            font-weight: 400;
            line-height: 1.6;
            max-width: 620px;
        }

        .hero-desc {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.68);
            line-height: 1.8;
            max-width: 580px;
            margin-bottom: 28px;
        }

        .hero-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 30px;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            background: var(--color-accent);
            color: #fff;
            border: none;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .btn-hero-primary:hover {
            background: var(--color-accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 157, 92, 0.4);
            color: #fff;
        }

        .btn-hero-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 30px;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.45);
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .btn-hero-outline:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
        }

        @media (max-width: 768px) {
            .hero-section {
                min-height: auto;
            }
            .hero-content {
                padding: 40px 0;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-desc {
                font-size: 0.88rem;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                padding: 11px 22px;
                font-size: 0.9rem;
            }
        }

        /* ============ SECTION COMMONS ============ */
        .section-padding {
            padding: 70px 0;
        }
        .section-padding-sm {
            padding: 50px 0;
        }
        .section-padding-lg {
            padding: 90px 0;
        }

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

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-accent-dark);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 10px;
            background: #fdf8f0;
            padding: 5px 14px;
            border-radius: 50px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--color-text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 44px 0;
            }
            .section-padding-lg {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }

        /* ============ STATS BAR ============ */
        .stats-bar {
            background: #ffffff;
            border-bottom: 1px solid var(--color-border-light);
        }
        .stats-row {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0;
            padding: 28px 0;
        }
        .stat-item {
            flex: 1 1 200px;
            text-align: center;
            padding: 14px 20px;
            border-right: 1px solid var(--color-border-light);
            min-width: 160px;
        }
        .stat-item:last-child {
            border-right: none;
        }
        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: 0.02em;
            line-height: 1.1;
        }
        .stat-number .plus {
            color: var(--color-accent);
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-top: 4px;
            letter-spacing: 0.02em;
        }
        @media (max-width: 768px) {
            .stat-item {
                flex: 1 1 140px;
                border-right: none;
                border-bottom: 1px solid var(--color-border-light);
                padding: 16px 12px;
            }
            .stat-item:last-child {
                border-bottom: none;
            }
            .stat-number {
                font-size: 1.7rem;
            }
        }

        /* ============ ADVANTAGE CARDS ============ */
        .advantage-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }
        .adv-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .adv-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--color-accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-slow);
            border-radius: 0 0 4px 4px;
        }
        .adv-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: #e0d5c4;
        }
        .adv-card:hover::before {
            transform: scaleX(1);
        }
        .adv-icon-circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: #f6f7f9;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--color-primary);
            margin-bottom: 16px;
            transition: all var(--transition-base);
        }
        .adv-card:hover .adv-icon-circle {
            background: var(--color-primary);
            color: #fff;
            transform: scale(1.05);
        }
        .adv-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }
        .adv-card p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            margin: 0;
        }
        @media (max-width: 1024px) {
            .advantage-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 520px) {
            .advantage-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* ============ BRAND STORY ============ */
        .brand-story-section {
            background: var(--color-bg-warm);
        }
        .brand-story-row {
            display: flex;
            align-items: center;
            gap: 50px;
            flex-wrap: wrap;
        }
        .brand-story-img {
            flex: 1 1 400px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            min-width: 280px;
        }
        .brand-story-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 4/3;
            border-radius: var(--radius-lg);
        }
        .brand-story-text {
            flex: 1 1 400px;
            min-width: 280px;
        }
        .brand-story-text h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .brand-story-text p {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.9;
            margin-bottom: 14px;
        }
        .brand-story-highlight {
            display: inline-block;
            padding: 8px 16px;
            background: #fff;
            border: 1px solid var(--color-accent);
            border-radius: 50px;
            color: var(--color-accent-dark);
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.03em;
        }
        @media (max-width: 768px) {
            .brand-story-row {
                gap: 28px;
            }
            .brand-story-text h3 {
                font-size: 1.35rem;
            }
        }

        /* ============ CATEGORY GRID ============ */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .cat-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .cat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: #d5cfc4;
        }
        .cat-card-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .cat-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .cat-card:hover .cat-card-img img {
            transform: scale(1.04);
        }
        .cat-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .cat-card-body h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
            letter-spacing: 0.02em;
        }
        .cat-card-body p {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.6;
            margin-bottom: 14px;
            flex: 1;
        }
        .cat-card-link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-accent-dark);
            transition: gap var(--transition-fast);
        }
        .cat-card-link:hover {
            color: var(--color-accent-dark);
            gap: 10px;
        }
        .cat-card-link i {
            font-size: 0.75rem;
        }
        @media (max-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 520px) {
            .category-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .cat-card-img {
                height: 160px;
            }
        }

        /* ============ HIGHLIGHT MATCHES ============ */
        .match-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .match-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: 16px 20px;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
            flex-wrap: wrap;
        }
        .match-item:hover {
            box-shadow: var(--shadow-md);
            border-color: #ddd5c8;
        }
        .match-thumb {
            width: 64px;
            height: 64px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: #f0f2f5;
        }
        .match-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .match-info {
            flex: 1;
            min-width: 180px;
        }
        .match-info .match-name {
            font-weight: 700;
            color: var(--color-primary);
            font-size: 1rem;
            letter-spacing: 0.02em;
        }
        .match-info .match-meta {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-top: 3px;
        }
        .match-tag {
            display: inline-block;
            padding: 5px 12px;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .match-tag.hot {
            background: #fde8e8;
            color: #c0392b;
        }
        .match-tag.upcoming {
            background: #e8f4fd;
            color: #2471a3;
        }
        .match-tag.live {
            background: #e8fde8;
            color: #1e7e34;
        }
        @media (max-width: 520px) {
            .match-item {
                padding: 12px 14px;
                gap: 10px;
            }
            .match-thumb {
                width: 48px;
                height: 48px;
            }
            .match-info .match-name {
                font-size: 0.9rem;
            }
        }

        /* ============ TESTIMONIALS ============ */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .testimonial-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            position: relative;
        }
        .testimonial-card::before {
            content: '"';
            position: absolute;
            top: 14px;
            right: 20px;
            font-size: 4rem;
            color: #f0ebe0;
            font-family: Georgia, serif;
            line-height: 1;
            pointer-events: none;
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            border-color: #ddd5c8;
        }
        .testimonial-stars {
            color: #e8b84b;
            font-size: 0.9rem;
            margin-bottom: 10px;
            letter-spacing: 2px;
        }
        .testimonial-card p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .testimonial-author {
            font-weight: 700;
            color: var(--color-primary);
            font-size: 0.9rem;
        }
        .testimonial-role {
            font-size: 0.78rem;
            color: var(--color-text-muted);
        }
        @media (max-width: 1024px) {
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 520px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* ============ FAQ ============ */
        .faq-section {
            background: var(--color-bg-warm);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #ffffff;
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: #d5cfc4;
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            background: none;
            border: none;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            letter-spacing: 0.02em;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--color-accent-dark);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 0.8rem;
            transition: transform var(--transition-base);
            color: var(--color-accent);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 22px 18px;
        }
        .faq-answer p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            margin: 0;
        }

        /* ============ NEWS ============ */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .news-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: #d5cfc4;
        }
        .news-card-img {
            height: 170px;
            overflow: hidden;
        }
        .news-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .news-card:hover .news-card-img img {
            transform: scale(1.04);
        }
        .news-card-body {
            padding: 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-date {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin-bottom: 6px;
        }
        .news-card-body h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
            line-height: 1.4;
            letter-spacing: 0.02em;
        }
        .news-card-body p {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            flex: 1;
        }
        .news-readmore {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--color-accent-dark);
            margin-top: 10px;
            transition: gap var(--transition-fast);
        }
        .news-readmore:hover {
            color: var(--color-accent-dark);
            gap: 9px;
        }
        @media (max-width: 1024px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 520px) {
            .news-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .news-card-img {
                height: 150px;
            }
        }

        /* ============ CTA BANNER ============ */
        .cta-banner {
            background: linear-gradient(135deg, var(--color-primary) 0%, #1a3c5e 50%, #0d2b44 100%);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            color: #ffffff;
            position: relative;
            overflow: hidden;
        }
        .cta-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 50%, rgba(200, 157, 92, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-banner h3 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
            letter-spacing: 0.03em;
        }
        .cta-banner p {
            font-size: 1rem;
            opacity: 0.85;
            margin-bottom: 22px;
            position: relative;
            z-index: 1;
            line-height: 1.7;
        }
        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 600;
            background: var(--color-accent);
            color: #fff;
            border: none;
            transition: all var(--transition-fast);
            position: relative;
            z-index: 1;
            letter-spacing: 0.02em;
        }
        .btn-cta-large:hover {
            background: var(--color-accent-light);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(200, 157, 92, 0.45);
            color: #fff;
        }
        @media (max-width: 768px) {
            .cta-banner {
                padding: 34px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-banner h3 {
                font-size: 1.4rem;
            }
            .btn-cta-large {
                padding: 12px 26px;
                font-size: 0.95rem;
            }
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: #0d2137;
            color: rgba(255, 255, 255, 0.75);
            padding: 40px 0 24px;
        }
        .footer-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            justify-content: space-between;
            margin-bottom: 28px;
        }
        .footer-col {
            flex: 1 1 160px;
            min-width: 140px;
        }
        .footer-col h5 {
            color: #ffffff;
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 7px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
            text-decoration: none;
        }
        .footer-col ul li a:hover {
            color: var(--color-accent-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-logo-text {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.03em;
            margin-bottom: 8px;
        }
        @media (max-width: 520px) {
            .footer-grid {
                gap: 20px;
            }
            .footer-col {
                flex: 1 1 120px;
                min-width: 110px;
            }
        }

        /* ============ UTILITIES ============ */
        .bg-light-warm {
            background-color: var(--color-bg-warm);
        }
        .bg-light-gray {
            background-color: var(--color-bg-light);
        }
        .text-accent {
            color: var(--color-accent-dark);
        }
        .fw-700 {
            font-weight: 700;
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }

        /* Focus visible */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* Animation for fade-in (optional subtle) */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-fade-in {
            animation: fadeInUp 0.6s ease forwards;
        }

/* roulang page: category4 */
:root {
            --primary: #1a3c5e;
            --primary-light: #1e4d7a;
            --primary-dark: #0f2a42;
            --accent: #c8963e;
            --accent-light: #d9a94e;
            --accent-dark: #a67a2e;
            --bg-white: #ffffff;
            --bg-light: #f8f9fa;
            --bg-soft: #f1f3f5;
            --bg-cream: #fdfaf5;
            --text-dark: #1a1a1a;
            --text-body: #333333;
            --text-muted: #6b7280;
            --text-light-muted: #9ca3af;
            --border-light: #e5e7eb;
            --border-soft: #eef0f2;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10), 0 3px 10px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12), 0 4px 14px rgba(0, 0, 0, 0.06);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --radius-full: 50px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--bg-white);
            margin: 0;
            padding: 0;
            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 {
            font-family: inherit;
            cursor: pointer;
        }

        /* ========== 容器 ========== */
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 768px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ========== Header / 导航 ========== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-soft);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: var(--shadow-sm);
            padding: 0;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            flex-wrap: wrap;
            gap: 10px;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            letter-spacing: 1px;
        }
        .logo-text {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--accent);
        }
        .nav-tabs-row {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            padding: 2px 0;
        }
        .nav-tabs-row::-webkit-scrollbar {
            display: none;
        }
        .nav-chip {
            display: inline-flex;
            align-items: center;
            padding: 9px 18px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-body);
            background: var(--bg-soft);
            border: 1px solid transparent;
            white-space: nowrap;
            transition: all var(--transition-base);
            letter-spacing: 0.3px;
            cursor: pointer;
            text-decoration: none;
        }
        .nav-chip:hover {
            background: #e8ecf1;
            color: var(--primary);
            border-color: #dde1e6;
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }
        .nav-chip.active {
            background: var(--primary);
            color: #ffffff;
            font-weight: 600;
            border-color: var(--primary);
            box-shadow: 0 3px 12px rgba(26, 60, 94, 0.25);
            pointer-events: none;
        }
        .nav-chip.active:hover {
            transform: none;
            box-shadow: 0 3px 12px rgba(26, 60, 94, 0.25);
        }
        .header-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 20px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 600;
            background: var(--accent);
            color: #fff;
            border: none;
            white-space: nowrap;
            transition: all var(--transition-base);
            letter-spacing: 0.3px;
            text-decoration: none;
            cursor: pointer;
        }
        .header-cta-btn:hover {
            background: var(--accent-dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(200, 150, 62, 0.35);
            transform: translateY(-2px);
        }
        @media (max-width: 992px) {
            .header-inner {
                flex-wrap: wrap;
                gap: 8px;
            }
            .nav-tabs-row {
                order: 3;
                width: 100%;
                justify-content: flex-start;
                padding-top: 4px;
            }
            .nav-chip {
                padding: 7px 14px;
                font-size: 0.82rem;
            }
            .logo-text {
                font-size: 1.15rem;
            }
            .header-cta-btn {
                padding: 7px 16px;
                font-size: 0.82rem;
            }
        }
        @media (max-width: 520px) {
            .header-inner {
                gap: 6px;
                padding: 10px 0;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
            }
            .logo-text {
                font-size: 1rem;
            }
            .nav-chip {
                padding: 6px 11px;
                font-size: 0.76rem;
                border-radius: 30px;
            }
            .header-cta-btn {
                padding: 6px 13px;
                font-size: 0.76rem;
                border-radius: 30px;
            }
        }

        /* ========== 页面Banner/Hero ========== */
        .page-hero {
            position: relative;
            background: linear-gradient(160deg, #0f2a42 0%, #1a3c5e 40%, #1e4d7a 100%);
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center 30%;
            background-blend-mode: overlay;
            padding: 80px 0 70px;
            color: #ffffff;
            text-align: center;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 42, 66, 0.65) 0%, rgba(26, 60, 94, 0.78) 60%, rgba(15, 42, 66, 0.9) 100%);
            z-index: 1;
        }
        .page-hero-content {
            position: relative;
            z-index: 2;
        }
        .page-hero .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.13);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #f0e0c0;
            padding: 6px 18px;
            border-radius: var(--radius-full);
            font-size: 0.88rem;
            font-weight: 500;
            letter-spacing: 1px;
            margin-bottom: 18px;
            backdrop-filter: blur(4px);
        }
        .page-hero h1 {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 16px;
            color: #ffffff;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        }
        .page-hero .hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto 24px;
            line-height: 1.8;
            text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        .page-hero .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 28px;
            margin-top: 10px;
        }
        .hero-stat-item {
            text-align: center;
            min-width: 80px;
        }
        .hero-stat-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent-light);
            letter-spacing: 0.5px;
            line-height: 1.2;
        }
        .hero-stat-label {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.65);
            letter-spacing: 0.5px;
        }
        @media (max-width: 768px) {
            .page-hero {
                padding: 50px 0 44px;
            }
            .page-hero h1 {
                font-size: 1.9rem;
                letter-spacing: 0.5px;
            }
            .page-hero .hero-desc {
                font-size: 0.95rem;
                max-width: 95%;
            }
            .hero-stat-num {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.5rem;
            }
            .page-hero .hero-desc {
                font-size: 0.85rem;
            }
            .hero-stats-row {
                gap: 16px;
            }
            .hero-stat-num {
                font-size: 1.25rem;
            }
            .hero-stat-label {
                font-size: 0.72rem;
            }
        }

        /* ========== 板块通用 ========== */
        .section-block {
            padding: 60px 0;
        }
        .section-block.bg-light-alt {
            background: var(--bg-light);
        }
        .section-block.bg-cream-alt {
            background: var(--bg-cream);
        }
        .section-block.bg-dark-accent {
            background: var(--primary-dark);
            color: #ffffff;
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 8px;
        }
        .section-title {
            font-family: var(--font-heading);
            font-size: 1.85rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
            letter-spacing: 0.4px;
        }
        .section-title.light {
            color: #ffffff;
        }
        .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-muted);
            max-width: 600px;
            line-height: 1.7;
            margin-bottom: 32px;
        }
        .section-subtitle.light {
            color: rgba(255, 255, 255, 0.7);
        }
        @media (max-width: 768px) {
            .section-block {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.45rem;
            }
            .section-subtitle {
                font-size: 0.85rem;
            }
        }

        /* ========== 卡片系统 ========== */
        .card-strategy {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        .card-strategy:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: #dce2e8;
        }
        .card-strategy .card-icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 16px;
            background: var(--bg-soft);
            color: var(--primary);
            transition: all var(--transition-base);
        }
        .card-strategy:hover .card-icon-wrap {
            background: var(--primary);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(26, 60, 94, 0.3);
        }
        .card-strategy h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .card-strategy p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }
        .card-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 20px;
            background: #fef3e0;
            color: #b87a20;
            letter-spacing: 0.5px;
            margin-bottom: 10px;
        }

        /* 图文卡片 */
        .card-media {
            background: #ffffff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-base);
            height: 100%;
            border: 1px solid var(--border-soft);
        }
        .card-media:hover {
            box-shadow: var(--shadow-xl);
            transform: translateY(-4px);
        }
        .card-media img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .card-media:hover img {
            transform: scale(1.04);
        }
        .card-media-body {
            padding: 20px 22px;
        }
        .card-media-body h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .card-media-body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin: 0;
        }

        /* ========== 列表样式 ========== */
        .tips-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .tips-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-soft);
            transition: all var(--transition-fast);
        }
        .tips-list li:last-child {
            border-bottom: none;
        }
        .tips-list li:hover {
            background: #fafbfc;
            margin: 0 -12px;
            padding-left: 12px;
            padding-right: 12px;
            border-radius: var(--radius-sm);
        }
        .tips-list .tip-num {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
        }
        .tips-list .tip-content h5 {
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            margin-bottom: 3px;
        }
        .tips-list .tip-content p {
            font-size: 0.87rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== CTA 区域 ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            color: #ffffff;
            box-shadow: var(--shadow-xl);
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 180px;
            height: 180px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.7rem;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
        }
        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 32px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            background: var(--accent);
            color: #fff;
            border: none;
            transition: all var(--transition-base);
            letter-spacing: 0.5px;
            text-decoration: none;
            cursor: pointer;
            position: relative;
            z-index: 1;
        }
        .btn-cta-primary:hover {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.2);
            transform: translateY(-2px);
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h3 {
                font-size: 1.35rem;
            }
            .btn-cta-primary {
                padding: 11px 24px;
                font-size: 0.9rem;
            }
        }

        /* ========== FAQ ========== */
        .faq-item {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin-bottom: 12px;
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
            border-color: #dce2e8;
        }
        .faq-item h5 {
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 1.02rem;
            color: var(--text-dark);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .faq-item h5 .faq-icon {
            color: var(--accent);
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .faq-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
            padding-left: 24px;
        }
        @media (max-width: 520px) {
            .faq-item {
                padding: 14px 16px;
            }
            .faq-item h5 {
                font-size: 0.9rem;
            }
            .faq-item p {
                font-size: 0.8rem;
                padding-left: 18px;
            }
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #0f1e2d;
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-logo-text {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.3rem;
            color: #ffffff;
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }
        .footer-col h5 {
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 0.95rem;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.85rem;
            transition: all var(--transition-fast);
            text-decoration: none;
        }
        .footer-col ul li a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 18px;
            text-align: center;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.4);
            line-height: 1.7;
        }
        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .site-footer {
                padding: 32px 0 18px;
            }
        }

        /* ========== Bootstrap 覆盖 ========== */
        .btn-outline-custom {
            border: 1.5px solid var(--primary);
            color: var(--primary);
            background: transparent;
            border-radius: var(--radius-full);
            padding: 10px 22px;
            font-weight: 500;
            font-size: 0.9rem;
            transition: all var(--transition-base);
            letter-spacing: 0.3px;
        }
        .btn-outline-custom:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-md);
        }
        .row-gap-custom {
            row-gap: 24px;
        }
        @media (max-width: 768px) {
            .row-gap-custom {
                row-gap: 16px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #0d2137;
            --primary-light: #1a3c5e;
            --primary-mid: #1f4d75;
            --accent: #c9a84c;
            --accent-hover: #b8943a;
            --accent-light: #f5ecd7;
            --bg-white: #ffffff;
            --bg-light: #f7f8fa;
            --bg-cream: #faf9f6;
            --bg-slate: #f0f2f5;
            --text-dark: #0f1724;
            --text-body: #2c3038;
            --text-muted: #6b7280;
            --text-light: #9ca3af;
            --border-color: #e5e7eb;
            --border-light: #f1f3f5;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 20px 56px rgba(0, 0, 0, 0.15);
            --radius-xs: 4px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --radius-full: 50px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --max-width: 1240px;
            --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-body);
            font-size: 16px;
            line-height: 1.72;
            color: var(--text-body);
            background-color: var(--bg-white);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        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 {
            font-family: inherit;
            cursor: pointer;
        }
        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

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

        @media (max-width: 768px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-xs);
            transition: all var(--transition-base);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            gap: 28px;
        }

        .header-logo {
            flex-shrink: 0;
        }
        .header-logo a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.35rem;
            letter-spacing: 0.03em;
            color: var(--primary);
            white-space: nowrap;
        }
        .header-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-mid) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .nav-tabs-row {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            padding: 4px 0;
        }
        .nav-tabs-row::-webkit-scrollbar {
            display: none;
        }

        .nav-chip {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 500;
            white-space: nowrap;
            color: var(--text-body);
            background: transparent;
            border: 1.5px solid transparent;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
            cursor: pointer;
            flex-shrink: 0;
        }
        .nav-chip:hover {
            background: var(--bg-slate);
            color: var(--primary);
            border-color: var(--border-color);
        }
        .nav-chip.active {
            background: var(--primary);
            color: #ffffff;
            border-color: var(--primary);
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(13, 33, 55, 0.25);
        }
        .nav-chip.active:hover {
            background: var(--primary-light);
            border-color: var(--primary-light);
            color: #fff;
        }

        .header-cta {
            flex-shrink: 0;
        }
        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 20px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            background: var(--accent);
            color: #fff;
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-header:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(201, 168, 76, 0.35);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            padding: 6px;
            line-height: 1;
            cursor: pointer;
        }

        @media (max-width: 1024px) {
            .header-inner {
                gap: 16px;
            }
            .nav-chip {
                padding: 7px 12px;
                font-size: 0.82rem;
            }
            .header-logo a {
                font-size: 1.2rem;
            }
            .header-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.95rem;
            }
        }
        @media (max-width: 768px) {
            .site-header {
                height: auto;
                min-height: 58px;
            }
            .header-inner {
                flex-wrap: wrap;
                padding: 10px 16px;
                gap: 10px;
            }
            .header-logo {
                flex: 1;
            }
            .header-cta {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-tabs-row {
                display: none;
                width: 100%;
                order: 3;
                gap: 4px;
                padding: 8px 0 4px;
            }
            .nav-tabs-row.open {
                display: flex;
                flex-wrap: nowrap;
                overflow-x: auto;
            }
            .nav-chip {
                padding: 6px 11px;
                font-size: 0.78rem;
            }
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            background: linear-gradient(160deg, #0d2137 0%, #162d4a 35%, #1a3c5e 65%, #0f2840 100%);
            color: #ffffff;
            padding: 56px 0 60px;
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.18;
            z-index: 0;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, rgba(255, 255, 255, 0.03) 0%, transparent 100%);
            z-index: 1;
        }
        .banner-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }
        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.22);
            border-radius: var(--radius-full);
            padding: 6px 15px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 18px;
            color: rgba(255, 255, 255, 0.9);
        }
        .banner-badge i {
            color: var(--accent);
            font-size: 0.75rem;
        }
        .page-banner h1 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2.5rem;
            letter-spacing: 0.03em;
            margin-bottom: 14px;
            line-height: 1.25;
            color: #ffffff;
        }
        .page-banner .banner-subtitle {
            font-size: 1.08rem;
            color: rgba(255, 255, 255, 0.78);
            line-height: 1.7;
            max-width: 620px;
        }
        .banner-accent-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            margin: 0 4px;
            vertical-align: middle;
        }
        @media (max-width: 768px) {
            .page-banner {
                padding: 36px 0 40px;
                min-height: 200px;
            }
            .page-banner h1 {
                font-size: 1.7rem;
            }
            .page-banner .banner-subtitle {
                font-size: 0.95rem;
            }
            .banner-badge {
                font-size: 0.78rem;
                padding: 5px 12px;
            }
        }

        /* ========== SECTION STYLES ========== */
        .section {
            padding: 60px 0;
        }
        .section-sm {
            padding: 40px 0;
        }
        .section-lg {
            padding: 72px 0;
        }
        .section-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.75rem;
            letter-spacing: 0.02em;
            color: var(--text-dark);
            margin-bottom: 8px;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            margin-bottom: 32px;
            line-height: 1.6;
        }
        .section-header {
            text-align: center;
            margin-bottom: 36px;
        }
        .section-header .accent-line {
            display: inline-block;
            width: 48px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
            margin-bottom: 12px;
        }
        .bg-slate {
            background: var(--bg-slate);
        }
        .bg-cream {
            background: var(--bg-cream);
        }

        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }
            .section-lg {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-subtitle {
                font-size: 0.9rem;
                margin-bottom: 24px;
            }
        }

        /* ========== CARD STYLES ========== */
        .card-custom {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            padding: 28px 24px;
            transition: all var(--transition-base);
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: #dde1e7;
        }
        .card-custom .card-icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 16px;
            flex-shrink: 0;
        }
        .card-custom .card-icon-blue {
            background: #e8f0f9;
            color: var(--primary-mid);
        }
        .card-custom .card-icon-gold {
            background: var(--accent-light);
            color: var(--accent);
        }
        .card-custom .card-icon-teal {
            background: #e6f5f0;
            color: #1a7a5a;
        }
        .card-custom .card-icon-rose {
            background: #fdf2f0;
            color: #c74b3a;
        }
        .card-custom h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 8px;
            color: var(--text-dark);
            line-height: 1.35;
        }
        .card-custom p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 0;
        }
        .card-custom .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            color: var(--accent);
            background: var(--accent-light);
            padding: 3px 10px;
            border-radius: var(--radius-full);
            margin-top: 10px;
        }

        /* ========== FEATURE LIST ========== */
        .feature-list-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .feature-list-item:last-child {
            border-bottom: none;
        }
        .feature-num {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
            font-family: var(--font-heading);
        }
        .feature-list-item h5 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 4px;
            color: var(--text-dark);
        }
        .feature-list-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ========== TIPS DETAIL BLOCK ========== */
        .tips-detail-block {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            padding: 32px 28px;
            margin-bottom: 20px;
            transition: all var(--transition-base);
        }
        .tips-detail-block:hover {
            box-shadow: var(--shadow-sm);
            border-color: #d5d9e0;
        }
        .tips-detail-block h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--text-dark);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .tips-detail-block h4 .dot-indicator {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }
        .tips-detail-block p {
            font-size: 0.93rem;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ========== 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: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            padding: 24px 18px;
            text-align: center;
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .stat-card .stat-number {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 2.2rem;
            color: var(--primary);
            letter-spacing: 0.02em;
            line-height: 1.1;
        }
        .stat-card .stat-number .accent {
            color: var(--accent);
        }
        .stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 6px;
            letter-spacing: 0.03em;
        }

        /* ========== FAQ ========== */
        .faq-accordion .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: #fff;
            transition: all var(--transition-fast);
        }
        .faq-accordion .accordion-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-accordion .accordion-button {
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            background: #fff;
            padding: 18px 22px;
            border: none;
            box-shadow: none;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: #fafbfc;
            box-shadow: none;
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(13, 33, 55, 0.08);
            border-color: transparent;
        }
        .faq-accordion .accordion-button::after {
            filter: brightness(0.4);
            transition: all var(--transition-fast);
        }
        .faq-accordion .accordion-body {
            font-size: 0.93rem;
            color: var(--text-body);
            line-height: 1.75;
            padding: 8px 22px 20px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(150deg, #0d2137 0%, #15304f 50%, #0d2840 100%);
            color: #fff;
            padding: 56px 0;
            text-align: center;
            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: 0.1;
            z-index: 0;
        }
        .cta-section .container-custom {
            position: relative;
            z-index: 1;
        }
        .cta-section h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.7rem;
            letter-spacing: 0.03em;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.72);
            max-width: 560px;
            margin: 0 auto 24px;
            font-size: 1rem;
            line-height: 1.7;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 30px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.03em;
            background: var(--accent);
            color: #fff;
            border: none;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .btn-cta:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(201, 168, 76, 0.4);
        }

        /* ========== ARTICLE MINI CARD ========== */
        .article-mini-card {
            display: flex;
            gap: 16px;
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            padding: 16px;
            transition: all var(--transition-base);
            align-items: flex-start;
        }
        .article-mini-card:hover {
            box-shadow: var(--shadow-sm);
            border-color: #d0d5dc;
            transform: translateX(3px);
        }
        .article-mini-card .article-thumb {
            width: 90px;
            height: 70px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: #e9ecef;
        }
        .article-mini-card .article-info h6 {
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 0.95rem;
            margin-bottom: 4px;
            color: var(--text-dark);
            line-height: 1.35;
        }
        .article-mini-card .article-info .article-meta {
            font-size: 0.78rem;
            color: var(--text-light);
        }
        .article-mini-card .article-info p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.5;
        }
        @media (max-width: 520px) {
            .article-mini-card {
                flex-direction: column;
            }
            .article-mini-card .article-thumb {
                width: 100%;
                height: 140px;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0a1929;
            color: rgba(255, 255, 255, 0.8);
            padding: 50px 0 0;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-logo-text {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.3rem;
            letter-spacing: 0.04em;
            color: #ffffff;
            margin-bottom: 8px;
        }
        .footer-col h5 {
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 0.95rem;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            text-align: center;
            padding: 20px 0;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.4);
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ========== UTILITY ========== */
        .text-accent {
            color: var(--accent) !important;
        }
        .fw-700 {
            font-weight: 700;
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .gap-16 {
            gap: 16px;
        }

/* roulang page: category2 */
:root {
            --color-primary: #1a3c5e;
            --color-primary-light: #2a5a8a;
            --color-accent: #c8963e;
            --color-accent-light: #e0b860;
            --color-bg: #f7f8fa;
            --color-white: #ffffff;
            --color-text: #1e1e1e;
            --color-text-muted: #6b7280;
            --color-text-light: #9ca3af;
            --color-border: #e5e7eb;
            --color-border-light: #f0f1f3;
            --color-success: #10b981;
            --color-warning: #f59e0b;
            --color-danger: #ef4444;
            --color-info: #3b82f6;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 10px 32px rgba(0, 0, 0, 0.10), 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 18px 48px rgba(0, 0, 0, 0.12), 0 6px 18px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-stack: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --container-narrow: 960px;
            --section-gap: 64px;
            --section-gap-sm: 40px;
        }

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

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

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

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

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

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

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 0.5em;
        }

        h1 {
            font-size: 2.4rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 1.85rem;
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: 1.4rem;
        }
        h4 {
            font-size: 1.15rem;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }

        .container-narrow {
            max-width: var(--container-narrow);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }

        section {
            padding: var(--section-gap) 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--color-accent);
            background: rgba(200, 150, 62, 0.1);
            padding: 6px 16px;
            border-radius: var(--radius-full);
            margin-bottom: 12px;
        }
        .section-header h2 {
            margin-bottom: 10px;
        }
        .section-header .section-desc {
            color: var(--color-text-muted);
            font-size: 1.05rem;
            max-width: 620px;
            margin: 0 auto;
            line-height: 1.65;
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            flex-wrap: wrap;
            gap: 14px;
        }
        .header-logo {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .header-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .header-logo:hover {
            color: var(--color-primary);
            opacity: 0.88;
        }
        .nav-tabs-row {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
            background: var(--color-bg);
            border-radius: var(--radius-full);
            padding: 5px 7px;
            border: 1px solid var(--color-border-light);
        }
        .nav-chip {
            display: inline-block;
            padding: 9px 18px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text-muted);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.01em;
        }
        .nav-chip:hover {
            color: var(--color-primary);
            background: rgba(26, 60, 94, 0.06);
        }
        .nav-chip.active {
            background: var(--color-primary);
            color: #fff;
            box-shadow: var(--shadow-md);
            font-weight: 700;
        }
        .nav-chip.active:hover {
            background: var(--color-primary-light);
            color: #fff;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn-header-cta {
            padding: 10px 22px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            background: var(--color-accent);
            color: #fff;
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
            white-space: nowrap;
            box-shadow: var(--shadow-sm);
        }
        .btn-header-cta:hover {
            background: var(--color-accent-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
            color: #fff;
        }

        .mobile-nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-primary);
            cursor: pointer;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
        }
        .mobile-nav-toggle:hover {
            background: var(--color-bg);
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            min-height: 380px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background-color: var(--color-primary);
            background-size: cover;
            background-position: center 30%;
            background-repeat: no-repeat;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26, 60, 94, 0.82) 0%, rgba(26, 60, 94, 0.92) 100%);
            z-index: 1;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            color: #fff;
            padding: 60px 0;
            max-width: 720px;
        }
        .page-banner .banner-breadcrumb {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .page-banner .banner-breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
        }
        .page-banner .banner-breadcrumb a:hover {
            color: var(--color-accent-light);
        }
        .page-banner h1 {
            color: #fff;
            font-size: 2.6rem;
            margin-bottom: 14px;
            line-height: 1.25;
        }
        .page-banner .banner-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            max-width: 600px;
        }
        .page-banner .banner-meta {
            display: flex;
            gap: 20px;
            margin-top: 18px;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
        }
        .page-banner .banner-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* ========== CARDS ========== */
        .card-custom {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }
        .card-custom .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 16px;
            flex-shrink: 0;
        }
        .card-icon-blue {
            background: rgba(26, 60, 94, 0.1);
            color: var(--color-primary);
        }
        .card-icon-gold {
            background: rgba(200, 150, 62, 0.12);
            color: var(--color-accent);
        }
        .card-icon-green {
            background: rgba(16, 185, 129, 0.1);
            color: var(--color-success);
        }
        .card-icon-red {
            background: rgba(239, 68, 68, 0.1);
            color: var(--color-danger);
        }
        .card-custom h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
        }
        .card-custom p {
            color: var(--color-text-muted);
            font-size: 0.95rem;
            line-height: 1.65;
            flex-grow: 1;
            margin-bottom: 0;
        }
        .card-custom .card-link {
            margin-top: 14px;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--color-accent);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: gap var(--transition-fast);
        }
        .card-custom .card-link:hover {
            gap: 9px;
            color: var(--color-accent-light);
        }

        /* Strategy detail card */
        .strategy-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .strategy-card:hover {
            box-shadow: var(--shadow-xl);
            transform: translateY(-4px);
        }
        .strategy-card .strategy-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--color-bg);
        }
        .strategy-card .strategy-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .strategy-card:hover .strategy-img-wrap img {
            transform: scale(1.04);
        }
        .strategy-card .strategy-body {
            padding: 22px 20px 24px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        .strategy-card .strategy-num {
            font-size: 2.8rem;
            font-weight: 900;
            color: rgba(26, 60, 94, 0.08);
            line-height: 1;
            margin-bottom: -8px;
        }
        .strategy-card h3 {
            font-size: 1.15rem;
            margin-bottom: 6px;
        }
        .strategy-card p {
            color: var(--color-text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            flex-grow: 1;
        }
        .strategy-card .strategy-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            background: rgba(200, 150, 62, 0.1);
            color: var(--color-accent);
            margin-top: 10px;
            align-self: flex-start;
        }

        /* ========== STATS ROW ========== */
        .stats-row {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .stat-item {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            flex: 1 1 180px;
            min-width: 150px;
            max-width: 220px;
            transition: all var(--transition-base);
        }
        .stat-item:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .stat-item .stat-number {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            line-height: 1.1;
        }
        .stat-item .stat-number .stat-suffix {
            font-size: 1.1rem;
            color: var(--color-accent);
        }
        .stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-top: 6px;
            font-weight: 500;
        }

        /* ========== INFO BLOCK (image + text) ========== */
        .info-block {
            display: flex;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
        }
        .info-block.reverse {
            flex-direction: row-reverse;
        }
        .info-block .info-img {
            flex: 1 1 380px;
            min-width: 280px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            aspect-ratio: 4 / 3;
        }
        .info-block .info-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .info-block .info-img:hover img {
            transform: scale(1.03);
        }
        .info-block .info-text {
            flex: 1 1 360px;
            min-width: 280px;
        }
        .info-block .info-text h2 {
            margin-bottom: 14px;
        }
        .info-block .info-text p {
            color: var(--color-text-muted);
            line-height: 1.75;
            margin-bottom: 12px;
            font-size: 1rem;
        }
        .info-block .info-text .highlight-list {
            list-style: none;
            padding: 0;
        }
        .info-block .info-text .highlight-list li {
            padding: 6px 0 6px 24px;
            position: relative;
            color: var(--color-text);
            font-weight: 500;
            font-size: 0.95rem;
        }
        .info-block .info-text .highlight-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 13px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent);
        }

        /* ========== MISTAKE LIST ========== */
        .mistake-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 800px;
            margin: 0 auto;
        }
        .mistake-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .mistake-item:hover {
            box-shadow: var(--shadow-md);
            border-color: #fecaca;
            background: #fffdfd;
        }
        .mistake-num {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: #fef2f2;
            color: var(--color-danger);
            font-weight: 900;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .mistake-body h4 {
            font-size: 1.05rem;
            margin-bottom: 4px;
            color: var(--color-text);
        }
        .mistake-body p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            padding: 18px 22px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--color-primary);
            user-select: none;
            transition: background var(--transition-fast);
            gap: 12px;
        }
        .faq-question:hover {
            background: rgba(26, 60, 94, 0.03);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            transition: all var(--transition-base);
            color: var(--color-text-muted);
        }
        .faq-item.open .faq-question .faq-icon {
            background: var(--color-accent);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
            padding: 0 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 22px 18px;
        }
        .faq-answer p {
            color: var(--color-text-muted);
            font-size: 0.95rem;
            line-height: 1.75;
            margin: 0;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(160deg, var(--color-primary) 0%, #0f2740 100%);
            color: #fff;
            text-align: center;
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(200, 150, 62, 0.12);
            top: -80px;
            right: -60px;
            pointer-events: none;
        }
        .cta-section .container-custom {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            color: #fff;
            margin-bottom: 12px;
            font-size: 2rem;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            max-width: 550px;
            margin: 0 auto 28px;
            line-height: 1.65;
        }
        .btn-cta-lg {
            display: inline-block;
            padding: 14px 36px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1.05rem;
            background: var(--color-accent);
            color: #fff;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: 0 6px 24px rgba(200, 150, 62, 0.35);
            letter-spacing: 0.02em;
        }
        .btn-cta-lg:hover {
            background: var(--color-accent-light);
            box-shadow: 0 10px 32px rgba(200, 150, 62, 0.45);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0c1e30;
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 20px;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-col h5 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 14px;
            font-weight: 700;
            letter-spacing: 0.02em;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.88rem;
            transition: color var(--transition-fast);
            display: inline-block;
        }
        .footer-col ul li a:hover {
            color: var(--color-accent-light);
        }
        .footer-logo-text {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 18px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.4);
            line-height: 1.7;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.55rem;
            }
            section {
                padding: var(--section-gap-sm) 0;
            }
            .page-banner {
                min-height: 300px;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .page-banner .banner-desc {
                font-size: 1rem;
            }
            .info-block {
                gap: 28px;
            }
            .info-block .info-img {
                flex: 1 1 300px;
                min-width: 240px;
            }
            .info-block .info-text {
                flex: 1 1 300px;
                min-width: 240px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: nowrap;
                gap: 10px;
            }
            .header-logo {
                font-size: 1.2rem;
            }
            .header-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .nav-tabs-row {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--color-white);
                flex-direction: column;
                border-radius: 0;
                padding: 10px 16px;
                gap: 2px;
                border: none;
                border-bottom: 2px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                z-index: 1049;
            }
            .nav-tabs-row.show {
                display: flex;
            }
            .nav-chip {
                display: block;
                text-align: center;
                padding: 11px 16px;
                border-radius: var(--radius-md);
                font-size: 0.95rem;
            }
            .mobile-nav-toggle {
                display: block;
            }
            .btn-header-cta {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.35rem;
            }
            section {
                padding: 36px 0;
            }
            .page-banner {
                min-height: 260px;
            }
            .page-banner h1 {
                font-size: 1.7rem;
            }
            .page-banner .banner-desc {
                font-size: 0.9rem;
            }
            .page-banner .banner-content {
                padding: 40px 0;
            }
            .stats-row {
                gap: 12px;
            }
            .stat-item {
                flex: 1 1 120px;
                min-width: 120px;
                max-width: 160px;
                padding: 16px 14px;
            }
            .stat-item .stat-number {
                font-size: 1.6rem;
            }
            .info-block {
                flex-direction: column !important;
                gap: 20px;
            }
            .info-block .info-img {
                flex: unset;
                width: 100%;
                min-width: unset;
            }
            .info-block .info-text {
                flex: unset;
                width: 100%;
                min-width: unset;
            }
            .card-custom {
                padding: 20px 16px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section p {
                font-size: 0.9rem;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .mistake-item {
                flex-direction: column;
                gap: 10px;
                align-items: flex-start;
            }
            .mistake-num {
                width: 34px;
                height: 34px;
                font-size: 0.95rem;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                gap: 6px;
            }
            .header-logo {
                font-size: 1.05rem;
            }
            .header-logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.75rem;
            }
            .btn-header-cta {
                padding: 7px 12px;
                font-size: 0.75rem;
            }
            h1 {
                font-size: 1.4rem;
            }
            h2 {
                font-size: 1.2rem;
            }
            h3 {
                font-size: 1.05rem;
            }
            .page-banner {
                min-height: 220px;
            }
            .page-banner h1 {
                font-size: 1.4rem;
            }
            .page-banner .banner-desc {
                font-size: 0.85rem;
            }
            .page-banner .banner-meta {
                font-size: 0.78rem;
                gap: 10px;
            }
            .stats-row {
                gap: 8px;
            }
            .stat-item {
                flex: 1 1 90px;
                min-width: 90px;
                max-width: 120px;
                padding: 12px 8px;
            }
            .stat-item .stat-number {
                font-size: 1.3rem;
            }
            .stat-item .stat-label {
                font-size: 0.7rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .container-custom {
                padding-left: 12px;
                padding-right: 12px;
            }
            .card-custom {
                padding: 16px 14px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-answer {
                padding: 0 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }
            .mistake-item {
                padding: 14px 16px;
            }
            .btn-cta-lg {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .strategy-card .strategy-body {
                padding: 16px 14px 18px;
            }
            .section-header .section-desc {
                font-size: 0.9rem;
            }
        }

/* roulang page: category6 */
:root {
            --brand-primary: #1a3c5e;
            --brand-accent: #c8963e;
            --brand-accent-light: #e0b96a;
            --brand-dark: #0d2137;
            --brand-surface: #f7f9fc;
            --brand-white: #ffffff;
            --text-primary: #1a1f2b;
            --text-secondary: #4a5568;
            --text-muted: #7b8794;
            --border-soft: #e2e8f0;
            --border-medium: #cbd5e0;
            --shadow-sm: 0 1px 3px rgba(13, 33, 55, 0.06), 0 1px 2px rgba(13, 33, 55, 0.04);
            --shadow-md: 0 4px 16px rgba(13, 33, 55, 0.08), 0 2px 6px rgba(13, 33, 55, 0.04);
            --shadow-lg: 0 12px 32px rgba(13, 33, 55, 0.12), 0 4px 12px rgba(13, 33, 55, 0.06);
            --shadow-xl: 0 20px 48px rgba(13, 33, 55, 0.16), 0 8px 20px rgba(13, 33, 55, 0.08);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --transition-base: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
        }

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

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

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

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

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

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

        .container-custom {
            width: 100%;
            max-width: 1260px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 768px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            background: var(--brand-white);
            border-bottom: 1px solid var(--border-soft);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

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

        .logo-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--brand-primary);
            white-space: nowrap;
            letter-spacing: 0.02em;
            transition: color var(--transition-base);
        }

        .logo-brand i {
            color: var(--brand-accent);
            font-size: 1.55rem;
            transition: transform var(--transition-smooth);
        }

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

        .logo-brand:hover i {
            transform: rotate(-15deg) scale(1.08);
        }

        .nav-tabs-row {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
            background: #f1f5f9;
            border-radius: 40px;
            padding: 5px 6px;
        }

        .nav-chip {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 9px 18px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-secondary);
            background: transparent;
            border: none;
            white-space: nowrap;
            transition: all var(--transition-base);
            letter-spacing: 0.01em;
            cursor: pointer;
            text-decoration: none;
            line-height: 1.4;
        }

        .nav-chip:hover {
            color: var(--brand-primary);
            background: rgba(26, 60, 94, 0.06);
        }

        .nav-chip.active {
            background: var(--brand-primary);
            color: #ffffff;
            box-shadow: var(--shadow-md);
            font-weight: 700;
        }

        .nav-chip.active:hover {
            background: var(--brand-dark);
            color: #ffffff;
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: 2px solid var(--border-medium);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            font-size: 1.3rem;
            color: var(--brand-primary);
            transition: all var(--transition-base);
        }

        .mobile-menu-toggle:hover {
            border-color: var(--brand-primary);
            background: var(--brand-surface);
        }

        @media (max-width: 1024px) {
            .nav-tabs-row {
                gap: 3px;
                padding: 4px 4px;
                border-radius: 32px;
            }
            .nav-chip {
                padding: 7px 13px;
                font-size: 0.8rem;
                border-radius: 26px;
            }
            .logo-brand {
                font-size: 1.2rem;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: nowrap;
                gap: 10px;
            }
            .mobile-menu-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .nav-tabs-row {
                display: none;
                flex-direction: column;
                width: 100%;
                border-radius: var(--radius-lg);
                padding: 8px;
                gap: 2px;
                background: var(--brand-white);
                box-shadow: var(--shadow-lg);
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                margin: 0 16px;
                z-index: 1040;
            }
            .nav-tabs-row.open {
                display: flex;
            }
            .nav-chip {
                width: 100%;
                text-align: center;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                font-size: 0.9rem;
            }
            .nav-chip.active {
                border-radius: var(--radius-sm);
            }
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            background: linear-gradient(160deg, #0d2137 0%, #1a3c5e 40%, #1e4d78 100%);
            min-height: 340px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 0;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, var(--brand-surface) 0%, transparent 100%);
            z-index: 1;
        }

        .banner-content {
            position: relative;
            z-index: 2;
            padding: 60px 0 50px;
            text-align: center;
            color: #ffffff;
        }

        .banner-badge {
            display: inline-block;
            background: rgba(200, 150, 62, 0.25);
            color: var(--brand-accent-light);
            border: 1px solid rgba(200, 150, 62, 0.4);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            margin-bottom: 16px;
        }

        .banner-content h1 {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
            line-height: 1.3;
            color: #ffffff;
        }

        .banner-content .banner-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.78);
            max-width: 620px;
            margin: 0 auto 8px;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .page-banner {
                min-height: 260px;
            }
            .banner-content {
                padding: 40px 0 36px;
            }
            .banner-content h1 {
                font-size: 1.8rem;
            }
            .banner-content .banner-subtitle {
                font-size: 0.95rem;
            }
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 56px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-header h2 {
            font-family: var(--font-heading);
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--brand-primary);
            margin-bottom: 10px;
            letter-spacing: 0.02em;
            line-height: 1.3;
        }

        .section-header .section-line {
            width: 50px;
            height: 3px;
            background: var(--brand-accent);
            margin: 0 auto 12px;
            border-radius: 3px;
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 0.95rem;
            max-width: 540px;
            margin: 0 auto;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .section {
                padding: 36px 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .section-header {
                margin-bottom: 28px;
            }
        }

        /* ========== STAT CARDS ROW ========== */
        .stat-cards-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: -30px;
            position: relative;
            z-index: 3;
        }

        .stat-card {
            background: var(--brand-white);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-soft);
            transition: all var(--transition-smooth);
        }

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

        .stat-card .stat-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            font-size: 1.3rem;
            background: rgba(26, 60, 94, 0.07);
            color: var(--brand-primary);
            transition: all var(--transition-base);
        }

        .stat-card:hover .stat-icon {
            background: var(--brand-primary);
            color: #ffffff;
            transform: scale(1.06);
        }

        .stat-card .stat-number {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--brand-primary);
            letter-spacing: 0.01em;
            line-height: 1.2;
        }

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

        @media (max-width: 1024px) {
            .stat-cards-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
                margin-top: -20px;
            }
        }

        @media (max-width: 520px) {
            .stat-cards-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
                margin-top: -16px;
            }
            .stat-card {
                padding: 16px 12px;
            }
            .stat-card .stat-number {
                font-size: 1.5rem;
            }
            .stat-card .stat-icon {
                width: 38px;
                height: 38px;
                font-size: 1.1rem;
            }
        }

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

        .service-card {
            background: var(--brand-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-soft);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }

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

        .service-card .card-img-wrap {
            height: 180px;
            overflow: hidden;
            position: relative;
        }

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

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

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

        .service-card .card-body-custom h3 {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--brand-primary);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
            line-height: 1.4;
        }

        .service-card .card-body-custom p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 12px;
            flex: 1;
        }

        .service-card .card-tag-row {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: auto;
        }

        .service-card .card-tag {
            display: inline-block;
            background: rgba(26, 60, 94, 0.06);
            color: var(--brand-primary);
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

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

        @media (max-width: 600px) {
            .service-cards-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .service-card .card-img-wrap {
                height: 150px;
            }
        }

        /* ========== LIVE MATCH TABLE-STYLE CARDS ========== */
        .live-match-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .live-match-item {
            background: var(--brand-white);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-soft);
            transition: all var(--transition-smooth);
            flex-wrap: wrap;
        }

        .live-match-item:hover {
            box-shadow: var(--shadow-lg);
            border-color: transparent;
            transform: translateX(3px);
        }

        .live-match-item .live-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #e53e3e;
            flex-shrink: 0;
            animation: pulse-live 1.6s infinite;
        }

        @keyframes pulse-live {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(229, 62, 62, 0.5);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(229, 62, 62, 0);
            }
        }

        .live-match-item .match-teams {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
            min-width: 140px;
            letter-spacing: 0.01em;
        }

        .live-match-item .match-score {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--brand-primary);
            background: rgba(26, 60, 94, 0.05);
            padding: 6px 14px;
            border-radius: var(--radius-sm);
            text-align: center;
        }

        .live-match-item .match-odds {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-left: auto;
        }

        .live-match-item .odds-chip {
            background: #f8fafc;
            border: 1px solid var(--border-soft);
            padding: 7px 13px;
            border-radius: 22px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-secondary);
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .live-match-item .odds-chip.up {
            color: #38a169;
            border-color: #c6f6d5;
            background: #f0fff4;
        }

        .live-match-item .odds-chip.down {
            color: #e53e3e;
            border-color: #fed7d7;
            background: #fff5f5;
        }

        @media (max-width: 600px) {
            .live-match-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
                padding: 14px 16px;
            }
            .live-match-item .match-odds {
                margin-left: 0;
            }
            .live-match-item .match-teams {
                min-width: auto;
            }
        }

        /* ========== FEATURE BLOCK ========== */
        .feature-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .feature-block .feature-img-wrap {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            aspect-ratio: 4/3;
        }

        .feature-block .feature-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }

        .feature-block .feature-img-wrap:hover img {
            transform: scale(1.04);
        }

        .feature-block .feature-text h3 {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--brand-primary);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
            line-height: 1.4;
        }

        .feature-block .feature-text p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.75;
            margin-bottom: 10px;
        }

        .feature-block .feature-text .feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .feature-block .feature-text .feature-list li {
            padding: 6px 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.6;
        }

        .feature-block .feature-text .feature-list li i {
            color: var(--brand-accent);
            font-size: 0.85rem;
            margin-top: 3px;
            flex-shrink: 0;
        }

        @media (max-width: 768px) {
            .feature-block {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .feature-block .feature-img-wrap {
                aspect-ratio: 16/9;
            }
            .feature-block .feature-text h3 {
                font-size: 1.25rem;
            }
        }

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

        .faq-item {
            background: var(--brand-white);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--border-soft);
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
        }

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

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            padding: 18px 22px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            transition: color var(--transition-base);
            letter-spacing: 0.01em;
            font-family: var(--font-heading);
        }

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

        .faq-question .faq-icon {
            transition: transform var(--transition-smooth);
            font-size: 0.9rem;
            color: var(--brand-accent);
            flex-shrink: 0;
        }

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

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

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 22px 18px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.75;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(145deg, #1a3c5e 0%, #0d2137 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            color: #ffffff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            z-index: 0;
        }

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

        .cta-section h2 {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            max-width: 500px;
            margin: 0 auto 22px;
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-accent);
            color: #ffffff;
            border: none;
            padding: 13px 28px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.03em;
            transition: all var(--transition-smooth);
            box-shadow: 0 6px 20px rgba(200, 150, 62, 0.35);
            cursor: pointer;
            text-decoration: none;
        }

        .btn-cta:hover {
            background: #d4a44e;
            box-shadow: 0 10px 28px rgba(200, 150, 62, 0.5);
            transform: translateY(-2px);
            color: #ffffff;
        }

        @media (max-width: 600px) {
            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .btn-cta {
                padding: 11px 22px;
                font-size: 0.9rem;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--brand-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 20px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 30px;
        }

        .footer-logo-text {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.3rem;
            color: #ffffff;
            margin-bottom: 8px;
            letter-spacing: 0.03em;
        }

        .footer-col h5 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 0.95rem;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }

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

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

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.85rem;
            transition: color var(--transition-base);
            text-decoration: none;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 16px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.4);
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }

        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ========== MISC ========== */
        .text-accent {
            color: var(--brand-accent);
        }
        .bg-surface-alt {
            background: #f0f4f8;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

/* roulang page: category5 */
:root {
            --color-primary: #1B3A5C;
            --color-primary-dark: #0F2440;
            --color-primary-light: #2C5A8C;
            --color-accent: #C8963E;
            --color-accent-light: #E0B860;
            --color-accent-dark: #9A7028;
            --color-bg: #FFFFFF;
            --color-bg-alt: #F5F6F8;
            --color-bg-dark: #1a1f2e;
            --color-text: #1a1a1a;
            --color-text-secondary: #555555;
            --color-text-muted: #888888;
            --color-text-light: #999999;
            --color-border: #e0e4e8;
            --color-border-light: #eaedf2;
            --color-success: #27ae60;
            --color-danger: #c0392b;
            --color-warning: #e67e22;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --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, 0.10);
            --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.12);
            --transition-fast: 0.18s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --section-padding: 72px;
            --section-padding-sm: 40px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-stack);
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
        }
        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.35;
            font-weight: 700;
            color: var(--color-text);
        }

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

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--color-border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 20px;
            max-width: var(--container-max);
            margin: 0 auto;
            flex-wrap: wrap;
            gap: 12px;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            background: var(--color-primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            letter-spacing: 1px;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-primary);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }
        .logo-text span {
            color: var(--color-accent);
        }
        .nav-tabs-row {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            padding: 4px 0;
            flex-shrink: 0;
        }
        .nav-tabs-row::-webkit-scrollbar {
            display: none;
            height: 0;
        }
        .nav-chip {
            display: inline-flex;
            align-items: center;
            padding: 9px 17px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 600;
            white-space: nowrap;
            color: var(--color-text-secondary);
            background: transparent;
            border: 2px solid transparent;
            transition: all var(--transition-fast);
            cursor: pointer;
            letter-spacing: 0.3px;
            flex-shrink: 0;
        }
        .nav-chip:hover {
            color: var(--color-primary);
            background: rgba(27, 58, 92, 0.04);
            border-color: rgba(27, 58, 92, 0.12);
        }
        .nav-chip.active {
            color: #fff;
            background: var(--color-primary);
            border-color: var(--color-primary);
            box-shadow: 0 2px 8px rgba(27, 58, 92, 0.25);
        }
        .header-cta {
            flex-shrink: 0;
        }
        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            background: var(--color-accent);
            color: #fff;
            border: none;
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .btn-header:hover {
            background: var(--color-accent-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        /* ========== HERO / BANNER ========== */
        .page-banner {
            position: relative;
            background: url('assets/images/backpic/back-1.webp') center/cover no-repeat;
            min-height: 420px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 36, 64, 0.82) 0%, rgba(27, 58, 92, 0.88) 60%, rgba(15, 36, 64, 0.92) 100%);
            z-index: 1;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            color: #fff;
            padding: 40px 20px;
            max-width: 800px;
        }
        .page-banner .banner-badge {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }
        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .page-banner .banner-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            max-width: 620px;
            margin: 0 auto 10px;
        }
        .page-banner .banner-meta {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 8px;
        }

        /* ========== SECTIONS ========== */
        .section-block {
            padding: var(--section-padding) 0;
        }
        .section-block.alt-bg {
            background: var(--color-bg-alt);
        }
        .section-block.dark-bg {
            background: var(--color-bg-dark);
            color: #ddd;
        }
        .section-block.dark-bg h2,
        .section-block.dark-bg h3 {
            color: #fff;
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 10px;
        }
        .section-title .title-accent {
            display: inline-block;
            width: 50px;
            height: 4px;
            background: var(--color-accent);
            border-radius: 2px;
            margin-bottom: 12px;
        }
        .section-title p {
            color: var(--color-text-muted);
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto;
        }
        .dark-bg .section-title h2 {
            color: #fff;
        }
        .dark-bg .section-title p {
            color: rgba(255, 255, 255, 0.6);
        }

        /* ========== CARDS ========== */
        .card-custom {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-base);
            height: 100%;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .card-custom .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #eef1f5;
        }
        .card-custom .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .card-custom:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .card-custom .card-body-custom {
            padding: 22px 20px;
        }
        .card-custom .card-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 14px;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }
        .tag-strategy {
            background: #e8f4fd;
            color: #1B3A5C;
        }
        .tag-risk {
            background: #fef3e2;
            color: #c8963e;
        }
        .tag-case {
            background: #e8f8f0;
            color: #27ae60;
        }
        .card-custom h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .card-custom p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ========== STRATEGY LIST ========== */
        .strategy-list-item {
            display: flex;
            gap: 18px;
            padding: 20px 0;
            border-bottom: 1px solid var(--color-border-light);
            align-items: flex-start;
        }
        .strategy-list-item:last-child {
            border-bottom: none;
        }
        .strategy-num {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
        }
        .strategy-list-item .strategy-info h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .strategy-list-item .strategy-info p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        /* ========== FAQ ACCORDION ========== */
        .accordion-custom .accordion-item {
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md) !important;
            margin-bottom: 10px;
            overflow: hidden;
            background: #fff;
            box-shadow: var(--shadow-sm);
        }
        .accordion-custom .accordion-button {
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-text);
            background: #fff;
            padding: 18px 20px;
            border-radius: var(--radius-md) !important;
            box-shadow: none;
            transition: all var(--transition-fast);
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            color: var(--color-primary);
            background: #f8fafc;
            box-shadow: none;
        }
        .accordion-custom .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(27, 58, 92, 0.1);
            border-color: var(--color-primary-light);
        }
        .accordion-custom .accordion-button::after {
            transition: transform var(--transition-fast);
        }
        .accordion-custom .accordion-body {
            padding: 16px 20px 22px;
            font-size: 0.93rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            background: #fafbfc;
        }

        /* ========== CTA BLOCK ========== */
        .cta-block {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            box-shadow: var(--shadow-lg);
        }
        .cta-block h3 {
            font-size: 1.7rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-block p {
            color: rgba(255, 255, 255, 0.8);
            max-width: 500px;
            margin: 0 auto 24px;
            font-size: 1rem;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 32px;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1rem;
            background: var(--color-accent);
            color: #fff;
            border: none;
            transition: all var(--transition-base);
            letter-spacing: 0.5px;
        }
        .btn-cta:hover {
            background: var(--color-accent-light);
            color: #fff;
            box-shadow: 0 6px 24px rgba(200, 150, 62, 0.4);
            transform: translateY(-2px);
        }
        .btn-outline-light-custom {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 11px 26px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 0.95rem;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.35);
            transition: all var(--transition-base);
        }
        .btn-outline-light-custom:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
        }

        /* ========== DATA HIGHLIGHT ========== */
        .data-highlight-row {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
        }
        .data-highlight-item {
            flex: 1 1 200px;
            min-width: 160px;
            text-align: center;
            padding: 28px 20px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .data-highlight-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .data-highlight-item .data-num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1;
            margin-bottom: 6px;
        }
        .data-highlight-item .data-num.accent {
            color: var(--color-accent);
        }
        .data-highlight-item .data-label {
            font-size: 0.9rem;
            color: var(--color-text-muted);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #111827;
            color: #ccc;
            padding: 50px 0 0;
            margin-top: 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-col h5 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent-light);
        }
        .footer-logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .footer-bottom {
            text-align: center;
            padding: 20px 0;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.4);
            line-height: 1.6;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .page-banner h1 {
                font-size: 2.2rem;
            }
            .page-banner {
                min-height: 340px;
            }
            .section-block {
                padding: 52px 0;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .data-highlight-item {
                flex: 1 1 160px;
                min-width: 140px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
                gap: 10px;
                padding: 10px 14px;
            }
            .nav-tabs-row {
                order: 3;
                width: 100%;
                justify-content: flex-start;
                gap: 4px;
                padding: 6px 0;
            }
            .nav-chip {
                padding: 7px 13px;
                font-size: 0.82rem;
                border-radius: 20px;
            }
            .header-cta {
                order: 2;
            }
            .logo-area {
                order: 1;
            }
            .page-banner {
                min-height: 280px;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner .banner-subtitle {
                font-size: 1rem;
            }
            .section-block {
                padding: 40px 0;
            }
            .section-title h2 {
                font-size: 1.5rem;
            }
            .cta-block {
                padding: 32px 24px;
            }
            .cta-block h3 {
                font-size: 1.35rem;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .data-highlight-item .data-num {
                font-size: 2rem;
            }
            .card-custom .card-body-custom {
                padding: 16px 14px;
            }
            .card-custom h3 {
                font-size: 1rem;
            }
        }
        @media (max-width: 520px) {
            .page-banner {
                min-height: 240px;
            }
            .page-banner h1 {
                font-size: 1.5rem;
                letter-spacing: 0.3px;
            }
            .page-banner .banner-subtitle {
                font-size: 0.9rem;
            }
            .page-banner .banner-badge {
                font-size: 0.75rem;
                padding: 4px 12px;
            }
            .section-title h2 {
                font-size: 1.3rem;
            }
            .section-title {
                margin-bottom: 32px;
            }
            .section-block {
                padding: 32px 0;
            }
            .nav-chip {
                padding: 6px 11px;
                font-size: 0.78rem;
                border-radius: 18px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .footer-col h5 {
                font-size: 0.9rem;
            }
            .strategy-list-item {
                flex-direction: column;
                gap: 10px;
                padding: 16px 0;
            }
            .strategy-num {
                width: 36px;
                height: 36px;
                font-size: 0.95rem;
            }
            .data-highlight-row {
                gap: 12px;
            }
            .data-highlight-item {
                flex: 1 1 120px;
                min-width: 120px;
                padding: 20px 12px;
            }
            .data-highlight-item .data-num {
                font-size: 1.6rem;
            }
            .data-highlight-item .data-label {
                font-size: 0.78rem;
            }
            .cta-block {
                padding: 24px 16px;
                border-radius: var(--radius-lg);
            }
            .cta-block h3 {
                font-size: 1.2rem;
            }
            .btn-cta,
            .btn-outline-light-custom {
                padding: 10px 22px;
                font-size: 0.9rem;
            }
            .accordion-custom .accordion-button {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .accordion-custom .accordion-body {
                font-size: 0.85rem;
                padding: 12px 16px 18px;
            }
        }
        @media (max-width: 380px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .data-highlight-item {
                flex: 1 1 100%;
                min-width: 100%;
            }
            .header-inner {
                gap: 8px;
            }
            .logo-text {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
            }
        }

/* roulang page: category1 */
:root {
            --brand-primary: #0f2b46;
            --brand-primary-light: #1a3f63;
            --brand-accent: #c8943e;
            --brand-accent-light: #d9a94e;
            --brand-accent-dark: #a8782e;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5e;
            --text-muted: #6c757d;
            --bg-page: #f7f8fa;
            --bg-white: #ffffff;
            --bg-light: #eef1f5;
            --bg-accent-soft: #faf6ef;
            --border-light: #e2e6ea;
            --border-medium: #d5d9de;
            --shadow-sm: 0 1px 3px rgba(15, 43, 70, 0.06);
            --shadow-md: 0 4px 16px rgba(15, 43, 70, 0.08);
            --shadow-lg: 0 8px 32px rgba(15, 43, 70, 0.10);
            --shadow-xl: 0 16px 48px rgba(15, 43, 70, 0.12);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-pill: 50px;
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
            --max-width-container: 1180px;
            --nav-height: 64px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-page);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--brand-accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
        }
        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

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

        /* Header & Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
        }
        .logo-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--brand-primary);
            white-space: nowrap;
            letter-spacing: -0.3px;
            flex-shrink: 0;
        }
        .logo-brand i {
            color: var(--brand-accent);
            font-size: 1.5rem;
        }
        .logo-brand:hover {
            color: var(--brand-primary-light);
        }

        /* Nav Tabs Row */
        .nav-tabs-row {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding: 4px 0;
            flex-shrink: 1;
            min-width: 0;
            mask-image: linear-gradient(to right, transparent 0%, #000 2%, #000 96%, transparent 100%);
            -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 2%, #000 96%, transparent 100%);
        }
        .nav-tabs-row::-webkit-scrollbar {
            display: none;
        }
        .nav-chip {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 8px 17px;
            border-radius: var(--radius-pill);
            font-size: 0.9rem;
            font-weight: 500;
            white-space: nowrap;
            color: var(--text-secondary);
            background: transparent;
            border: 1.5px solid transparent;
            transition: all var(--transition-fast);
            cursor: pointer;
            flex-shrink: 0;
            letter-spacing: 0.1px;
        }
        .nav-chip:hover {
            color: var(--brand-primary);
            background: var(--bg-light);
            border-color: var(--border-medium);
        }
        .nav-chip.active {
            background: var(--brand-primary);
            color: #fff;
            border-color: var(--brand-primary);
            font-weight: 600;
            box-shadow: 0 3px 12px rgba(15, 43, 70, 0.22);
        }
        .nav-chip i {
            font-size: 0.85rem;
            opacity: 0.8;
        }

        /* Mobile Nav Toggle */
        .mobile-nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--brand-primary);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mobile-nav-toggle:hover {
            background: var(--bg-light);
        }
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(10px);
            z-index: 1040;
            padding: 20px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }
        .mobile-nav-panel.open {
            display: flex;
        }
        .mobile-nav-panel .nav-chip {
            display: flex;
            width: 100%;
            justify-content: center;
            padding: 14px 20px;
            font-size: 1rem;
            border-radius: var(--radius-md);
            border: 1.5px solid var(--border-light);
            background: var(--bg-white);
        }
        .mobile-nav-panel .nav-chip.active {
            background: var(--brand-primary);
            color: #fff;
            border-color: var(--brand-primary);
        }

        /* Page Banner */
        .page-banner {
            position: relative;
            background: linear-gradient(135deg, var(--brand-primary) 0%, #1a3f63 40%, #0f2b46 100%);
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 70px 0 60px;
            overflow: hidden;
            color: #fff;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.18;
            z-index: 1;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, rgba(247, 248, 250, 0.6) 0%, transparent 100%);
            z-index: 2;
        }
        .page-banner-content {
            position: relative;
            z-index: 3;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }
        .page-banner .banner-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.28);
            color: #fff;
            padding: 6px 18px;
            border-radius: var(--radius-pill);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .page-banner h1 {
            font-size: 2.5rem;
            font-weight: 700;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .page-banner .banner-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            max-width: 550px;
            margin: 0 auto;
        }

        /* Section Common */
        .section-block {
            padding: 56px 0;
        }
        .section-block.bg-white {
            background: var(--bg-white);
        }
        .section-block.bg-light {
            background: var(--bg-light);
        }
        .section-block.bg-accent-soft {
            background: var(--bg-accent-soft);
        }
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-header .section-badge {
            display: inline-block;
            background: var(--bg-accent-soft);
            color: var(--brand-accent-dark);
            padding: 5px 16px;
            border-radius: var(--radius-pill);
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.4px;
            margin-bottom: 10px;
        }
        .section-header h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: -0.3px;
        }
        .section-header .section-desc {
            color: var(--text-muted);
            font-size: 0.95rem;
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.6;
        }

        /* League Intro Cards */
        .league-intro-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }
        .league-intro-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-base);
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .league-intro-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border-medium);
        }
        .league-intro-card .card-icon-wrap {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            background: var(--bg-accent-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--brand-accent);
            flex-shrink: 0;
        }
        .league-intro-card h4 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0;
        }
        .league-intro-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin: 0;
            flex-grow: 1;
        }
        .league-intro-card .card-stat-row {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.8rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-light);
            padding-top: 12px;
        }
        .league-intro-card .card-stat-row span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .league-intro-card .card-stat-row i {
            color: var(--brand-accent);
            font-size: 0.7rem;
        }

        /* League Detail Cards */
        .league-detail-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
            gap: 28px;
        }
        .league-detail-card {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-md);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .league-detail-card:hover {
            box-shadow: var(--shadow-xl);
            transform: translateY(-4px);
        }
        .league-detail-card .card-img-area {
            position: relative;
            height: 200px;
            overflow: hidden;
        }
        .league-detail-card .card-img-area img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .league-detail-card:hover .card-img-area img {
            transform: scale(1.06);
        }
        .league-detail-card .card-img-overlay-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(15, 43, 70, 0.85);
            color: #fff;
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            backdrop-filter: blur(6px);
        }
        .league-detail-card .card-body-custom {
            padding: 22px 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex-grow: 1;
        }
        .league-detail-card .card-body-custom h4 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0;
        }
        .league-detail-card .card-body-custom p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin: 0;
            flex-grow: 1;
        }
        .league-detail-card .card-meta-row {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .league-detail-card .card-meta-row i {
            color: var(--brand-accent);
            margin-right: 3px;
        }
        .btn-outline-accent {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 20px;
            border-radius: var(--radius-pill);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--brand-accent-dark);
            border: 1.5px solid var(--brand-accent);
            background: transparent;
            transition: all var(--transition-fast);
            cursor: pointer;
            text-decoration: none;
        }
        .btn-outline-accent:hover {
            background: var(--brand-accent);
            color: #fff;
            border-color: var(--brand-accent);
        }

        /* Data Stats */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 24px 18px;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-accent);
        }
        .stat-card .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--brand-primary);
            letter-spacing: -0.5px;
        }
        .stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .stat-card .stat-icon {
            font-size: 1.6rem;
            color: var(--brand-accent);
            margin-bottom: 6px;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--border-medium);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 22px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            transition: color var(--transition-fast);
            line-height: 1.5;
        }
        .faq-question:hover {
            color: var(--brand-accent-dark);
        }
        .faq-question .faq-icon {
            font-size: 0.9rem;
            color: var(--brand-accent);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
        }
        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 140px;
            height: 140px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }
        .cta-section h3 {
            font-size: 1.7rem;
            font-weight: 700;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-accent-solid {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 32px;
            border-radius: var(--radius-pill);
            font-size: 1rem;
            font-weight: 600;
            background: var(--brand-accent);
            color: #fff;
            border: none;
            transition: all var(--transition-fast);
            cursor: pointer;
            text-decoration: none;
            position: relative;
            z-index: 1;
            letter-spacing: 0.2px;
        }
        .btn-accent-solid:hover {
            background: var(--brand-accent-light);
            color: #fff;
            box-shadow: 0 8px 28px rgba(200, 148, 62, 0.35);
            transform: translateY(-2px);
        }

        /* Footer */
        .site-footer {
            background: #0d1f30;
            color: #fff;
            padding: 48px 0 0;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            letter-spacing: -0.2px;
        }
        .footer-col h5 {
            font-size: 0.9rem;
            font-weight: 700;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 14px;
            letter-spacing: 0.3px;
            text-transform: uppercase;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--brand-accent);
        }
        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.4);
            line-height: 1.6;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .league-detail-grid {
                grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            }
        }
        @media (max-width: 768px) {
            .nav-tabs-row {
                display: none;
            }
            .mobile-nav-toggle {
                display: inline-flex;
            }
            .site-header {
                height: 56px;
            }
            .logo-brand {
                font-size: 1.15rem;
            }
            .page-banner {
                padding: 48px 0 40px;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .page-banner .banner-subtitle {
                font-size: 0.9rem;
            }
            .section-block {
                padding: 36px 0;
            }
            .section-header h2 {
                font-size: 1.45rem;
            }
            .league-intro-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .league-detail-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-card .stat-number {
                font-size: 1.6rem;
            }
            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h3 {
                font-size: 1.3rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .faq-answer-inner {
                padding: 0 16px 16px;
                font-size: 0.84rem;
            }
        }
        @media (max-width: 520px) {
            .container-custom {
                padding: 0 14px;
            }
            .page-banner h1 {
                font-size: 1.35rem;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 16px 10px;
            }
            .stat-card .stat-number {
                font-size: 1.3rem;
            }
            .league-detail-card .card-img-area {
                height: 160px;
            }
            .btn-accent-solid {
                padding: 11px 24px;
                font-size: 0.9rem;
            }
            .btn-outline-accent {
                padding: 7px 16px;
                font-size: 0.82rem;
            }
            .nav-chip {
                padding: 7px 13px;
                font-size: 0.8rem;
            }
        }