/* roulang page: index */
:root {
            --color-primary: #c41e3a;
            --color-primary-dark: #9b1730;
            --color-primary-light: #e8455c;
            --color-secondary: #1b3a5c;
            --color-secondary-light: #2c5a8a;
            --color-accent: #f0a500;
            --color-accent-light: #ffc940;
            --color-bg: #f5f6f8;
            --color-white: #ffffff;
            --color-text: #1a1a2e;
            --color-text-soft: #4a4a5e;
            --color-text-muted: #7a7a8e;
            --color-text-light: #9a9aae;
            --color-border: #e2e4e9;
            --color-border-light: #eef0f5;
            --color-success: #10b981;
            --color-warning: #f59e0b;
            --color-card-shadow: 0 2px 16px rgba(0, 0, 0, 0.07);
            --color-card-shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.12);
            --color-nav-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
            --border-radius-sm: 6px;
            --border-radius: 10px;
            --border-radius-lg: 16px;
            --border-radius-xl: 20px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 0.75rem;
            --spacing-md: 1.25rem;
            --spacing-lg: 2rem;
            --spacing-xl: 3rem;
            --spacing-2xl: 4.5rem;
            --spacing-3xl: 6rem;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Noto Sans SC', sans-serif;
            --max-width: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

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

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }
        button:focus {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 2px;
        }

        input {
            font-family: inherit;
        }
        input:focus {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 1px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin-top: 0;
            line-height: 1.35;
            color: var(--color-text);
            font-weight: 700;
        }

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

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

        @media (min-width: 768px) {
            .container-custom {
                padding-left: var(--spacing-lg);
                padding-right: var(--spacing-lg);
            }
        }
        @media (min-width: 1200px) {
            .container-custom {
                padding-left: var(--spacing-xl);
                padding-right: var(--spacing-xl);
            }
        }

        .section-padding {
            padding: var(--spacing-2xl) 0;
        }
        @media (min-width: 768px) {
            .section-padding {
                padding: var(--spacing-3xl) 0;
            }
        }

        .section-title {
            text-align: center;
            margin-bottom: var(--spacing-xl);
        }
        .section-title h2 {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: var(--spacing-xs);
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 50px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 2px;
        }
        .section-title .subtitle {
            font-size: 1rem;
            color: var(--color-text-muted);
            margin-top: var(--spacing-md);
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        @media (min-width: 768px) {
            .section-title h2 {
                font-size: 2.1rem;
            }
            .section-title .subtitle {
                font-size: 1.05rem;
            }
        }

        .header-site {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--color-nav-shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
            transition: box-shadow var(--transition-base);
        }
        .header-site .top-bar {
            background: transparent;
            padding: 0;
            max-width: var(--max-width);
            margin: 0 auto;
        }
        .header-site .top-bar,
        .header-site .top-bar ul {
            background: transparent;
        }
        .header-site .top-bar-left {
            display: flex;
            align-items: center;
            padding: var(--spacing-sm) 0;
        }
        .header-site .top-bar-right {
            display: flex;
            align-items: center;
        }
        .header-site .logo-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }
        .header-site .logo-brand:hover {
            color: var(--color-primary-dark);
        }
        .header-site .logo-brand .logo-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--border-radius-sm);
            font-size: 1.2rem;
            font-weight: 900;
            letter-spacing: 0;
            flex-shrink: 0;
            transition: background var(--transition-fast);
        }
        .header-site .logo-brand:hover .logo-num {
            background: var(--color-primary-dark);
        }
        .header-site .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }
        .header-site .nav-links li a {
            display: inline-block;
            padding: 8px 16px;
            color: var(--color-text-soft);
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--border-radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .header-site .nav-links li a:hover,
        .header-site .nav-links li a.active {
            color: var(--color-primary);
            background: rgba(196, 30, 58, 0.05);
        }
        .header-site .nav-links li a.active {
            font-weight: 700;
        }
        .header-site .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 1px;
        }
        .header-site .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            background: var(--color-primary);
            color: #fff !important;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.9rem;
            transition: all var(--transition-base);
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(196, 30, 58, 0.3);
        }
        .header-site .nav-cta:hover {
            background: var(--color-primary-dark);
            box-shadow: 0 6px 20px rgba(196, 30, 58, 0.45);
            transform: translateY(-1px);
            color: #fff !important;
        }
        .header-site .nav-cta i {
            font-size: 0.85rem;
        }
        .header-site .title-bar {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            padding: 10px 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .header-site .title-bar .menu-icon {
            cursor: pointer;
            position: relative;
            width: 28px;
            height: 20px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .header-site .title-bar .menu-icon::after {
            display: none;
        }
        .header-site .title-bar .menu-icon span {
            display: block;
            width: 100%;
            height: 2.5px;
            background: var(--color-text);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }
        .header-site .title-bar .mobile-logo {
            font-weight: 800;
            color: var(--color-primary);
            font-size: 1.2rem;
        }

        @media (max-width: 767px) {
            .header-site .top-bar {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--color-white);
                border-bottom: 2px solid var(--color-border);
                box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
                flex-direction: column;
                padding: 12px 16px;
                z-index: 999;
            }
            .header-site .top-bar.is-open {
                display: block;
            }
            .header-site .top-bar .top-bar-left,
            .header-site .top-bar .top-bar-right {
                width: 100%;
                flex-direction: column;
                align-items: stretch;
            }
            .header-site .nav-links {
                flex-direction: column;
                gap: 2px;
            }
            .header-site .nav-links li a {
                display: block;
                padding: 12px 16px;
                border-radius: var(--border-radius-sm);
            }
            .header-site .nav-cta {
                margin-top: 8px;
                text-align: center;
                justify-content: center;
                display: flex;
            }
            .header-site .title-bar {
                display: flex;
            }
        }
        @media (min-width: 768px) {
            .header-site .title-bar {
                display: none;
            }
            .header-site .top-bar {
                display: flex !important;
                flex-wrap: wrap;
                justify-content: space-between;
                padding: 6px 0;
            }
        }

        .hero-section {
            position: relative;
            background: linear-gradient(160deg, #0d1b2a 0%, #1b3a5c 40%, #162d45 100%);
            color: #fff;
            padding: var(--spacing-3xl) 0 var(--spacing-2xl);
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            z-index: 0;
        }
        .hero-section .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(196, 30, 58, 0.25) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 60%, rgba(240, 165, 0, 0.12) 0%, transparent 55%);
            z-index: 1;
        }
        .hero-section .container-custom {
            position: relative;
            z-index: 2;
        }
        .hero-section .hero-content {
            max-width: 700px;
        }
        .hero-section .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: var(--spacing-md);
            backdrop-filter: blur(8px);
            color: #fff;
        }
        .hero-section .hero-badge i {
            color: var(--color-accent);
            font-size: 0.75rem;
        }
        .hero-section h1 {
            font-size: 2.4rem;
            font-weight: 900;
            color: #fff;
            margin-bottom: var(--spacing-md);
            letter-spacing: 1px;
            line-height: 1.2;
        }
        .hero-section h1 .highlight {
            color: var(--color-accent);
            position: relative;
        }
        .hero-section .hero-desc {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: var(--spacing-lg);
            line-height: 1.8;
            max-width: 580px;
        }
        .hero-section .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .hero-section .btn-primary-hero {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--color-primary);
            color: #fff;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            transition: all var(--transition-base);
            box-shadow: 0 6px 22px rgba(196, 30, 58, 0.4);
            cursor: pointer;
        }
        .hero-section .btn-primary-hero:hover {
            background: var(--color-primary-light);
            box-shadow: 0 8px 28px rgba(196, 30, 58, 0.55);
            transform: translateY(-2px);
            color: #fff;
        }
        .hero-section .btn-outline-hero {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: transparent;
            color: #fff;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .hero-section .btn-outline-hero:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        @media (min-width: 768px) {
            .hero-section {
                min-height: 600px;
                padding: var(--spacing-3xl) 0;
            }
            .hero-section h1 {
                font-size: 3rem;
            }
            .hero-section .hero-desc {
                font-size: 1.1rem;
            }
        }
        @media (min-width: 1024px) {
            .hero-section h1 {
                font-size: 3.4rem;
            }
            .hero-section .hero-desc {
                font-size: 1.15rem;
            }
        }

        .stats-section {
            padding: var(--spacing-xl) 0;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
        }
        .stats-section .stats-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-md);
            text-align: center;
        }
        @media (min-width: 768px) {
            .stats-section .stats-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: var(--spacing-lg);
            }
        }
        .stats-section .stat-item {
            padding: var(--spacing-md);
            transition: transform var(--transition-base);
        }
        .stats-section .stat-item:hover {
            transform: translateY(-4px);
        }
        .stats-section .stat-number {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--color-primary);
            line-height: 1;
            margin-bottom: 4px;
            letter-spacing: -0.5px;
        }
        .stats-section .stat-number .unit {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text-muted);
            margin-left: 2px;
        }
        .stats-section .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            font-weight: 500;
        }
        @media (min-width: 768px) {
            .stats-section .stat-number {
                font-size: 2.8rem;
            }
        }

        .advantages-section {
            background: var(--color-bg);
        }
        .advantages-section .adv-card {
            background: var(--color-white);
            border-radius: var(--border-radius-lg);
            padding: var(--spacing-xl) var(--spacing-lg);
            text-align: center;
            box-shadow: var(--color-card-shadow);
            transition: all var(--transition-base);
            height: 100%;
            border: 1px solid var(--color-border-light);
            position: relative;
            overflow: hidden;
        }
        .advantages-section .adv-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .advantages-section .adv-card:hover {
            box-shadow: var(--color-card-shadow-hover);
            transform: translateY(-6px);
            border-color: transparent;
        }
        .advantages-section .adv-card:hover::before {
            opacity: 1;
        }
        .advantages-section .adv-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(196, 30, 58, 0.08);
            color: var(--color-primary);
            font-size: 1.6rem;
            margin-bottom: var(--spacing-md);
            transition: all var(--transition-base);
        }
        .advantages-section .adv-card:hover .adv-icon {
            background: var(--color-primary);
            color: #fff;
            transform: scale(1.08);
        }
        .advantages-section .adv-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            color: var(--color-text);
        }
        .advantages-section .adv-card p {
            font-size: 0.93rem;
            color: var(--color-text-muted);
            margin: 0;
            line-height: 1.6;
        }

        .brand-story-section {
            background: var(--color-white);
        }
        .brand-story-section .story-grid {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-xl);
            align-items: center;
        }
        .brand-story-section .story-image {
            flex: 1 1 320px;
            min-width: 280px;
            border-radius: var(--border-radius-lg);
            overflow: hidden;
            box-shadow: var(--color-card-shadow);
            position: relative;
        }
        .brand-story-section .story-image img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .brand-story-section .story-image:hover img {
            transform: scale(1.04);
        }
        .brand-story-section .story-text {
            flex: 1 1 380px;
            min-width: 280px;
        }
        .brand-story-section .story-text h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: var(--spacing-md);
            color: var(--color-text);
        }
        .brand-story-section .story-text p {
            font-size: 0.98rem;
            color: var(--color-text-soft);
            line-height: 1.85;
            margin-bottom: var(--spacing-md);
        }
        .brand-story-section .story-highlights {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
            margin-top: var(--spacing-md);
        }
        .brand-story-section .story-highlight-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 6px 14px;
            background: rgba(196, 30, 58, 0.06);
            color: var(--color-primary);
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            border: 1px solid rgba(196, 30, 58, 0.15);
        }

        .categories-section {
            background: var(--color-bg);
        }
        .categories-section .cat-card {
            background: var(--color-white);
            border-radius: var(--border-radius-lg);
            overflow: hidden;
            box-shadow: var(--color-card-shadow);
            transition: all var(--transition-base);
            height: 100%;
            border: 1px solid var(--color-border-light);
            cursor: pointer;
            display: block;
            color: inherit;
        }
        .categories-section .cat-card:hover {
            box-shadow: var(--color-card-shadow-hover);
            transform: translateY(-6px);
            color: inherit;
            border-color: transparent;
        }
        .categories-section .cat-card .cat-img-wrap {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .categories-section .cat-card .cat-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .categories-section .cat-card:hover .cat-img-wrap img {
            transform: scale(1.06);
        }
        .categories-section .cat-card .cat-body {
            padding: var(--spacing-lg);
        }
        .categories-section .cat-card .cat-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--color-text);
        }
        .categories-section .cat-card .cat-body p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            margin: 0;
            line-height: 1.5;
        }
        .categories-section .cat-card .cat-arrow {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.9rem;
            margin-top: var(--spacing-sm);
            transition: gap var(--transition-fast);
        }
        .categories-section .cat-card:hover .cat-arrow {
            gap: 8px;
        }

        .services-section {
            background: var(--color-white);
        }
        .services-section .service-row {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-lg);
            align-items: center;
            padding: var(--spacing-lg) 0;
            border-bottom: 1px solid var(--color-border-light);
        }
        .services-section .service-row:last-child {
            border-bottom: none;
        }
        .services-section .service-img {
            flex: 1 1 280px;
            min-width: 240px;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--color-card-shadow);
        }
        .services-section .service-img img {
            width: 100%;
            height: 240px;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .services-section .service-img:hover img {
            transform: scale(1.03);
        }
        .services-section .service-info {
            flex: 1 1 320px;
            min-width: 260px;
        }
        .services-section .service-info h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
        }
        .services-section .service-info p {
            font-size: 0.95rem;
            color: var(--color-text-soft);
            line-height: 1.7;
            margin-bottom: var(--spacing-md);
        }
        .services-section .service-info .service-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .services-section .service-tag {
            padding: 5px 12px;
            background: var(--color-bg);
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--color-text-soft);
        }

        .partners-section {
            background: var(--color-bg);
        }
        .partners-section .partner-logos {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            gap: var(--spacing-xl);
            padding: var(--spacing-lg) 0;
        }
        .partners-section .partner-item {
            background: var(--color-white);
            padding: var(--spacing-md) var(--spacing-lg);
            border-radius: var(--border-radius);
            box-shadow: var(--color-card-shadow);
            font-weight: 700;
            color: var(--color-text-soft);
            font-size: 1rem;
            transition: all var(--transition-base);
            text-align: center;
            min-width: 120px;
            border: 1px solid var(--color-border-light);
        }
        .partners-section .partner-item:hover {
            box-shadow: var(--color-card-shadow-hover);
            transform: translateY(-3px);
            color: var(--color-primary);
            border-color: rgba(196, 30, 58, 0.2);
        }

        .testimonials-section {
            background: var(--color-white);
        }
        .testimonials-section .testimonial-card {
            background: var(--color-bg);
            border-radius: var(--border-radius-lg);
            padding: var(--spacing-xl);
            box-shadow: var(--color-card-shadow);
            border: 1px solid var(--color-border-light);
            height: 100%;
            transition: all var(--transition-base);
            position: relative;
        }
        .testimonials-section .testimonial-card:hover {
            box-shadow: var(--color-card-shadow-hover);
            transform: translateY(-4px);
        }
        .testimonials-section .testimonial-card .quote-icon {
            font-size: 2rem;
            color: var(--color-primary);
            opacity: 0.3;
            margin-bottom: var(--spacing-sm);
        }
        .testimonials-section .testimonial-card .quote-text {
            font-size: 0.95rem;
            color: var(--color-text-soft);
            line-height: 1.7;
            margin-bottom: var(--spacing-md);
            font-style: italic;
        }
        .testimonials-section .testimonial-card .quote-author {
            font-weight: 700;
            color: var(--color-text);
            font-size: 0.9rem;
        }
        .testimonials-section .testimonial-card .quote-role {
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }

        .faq-section {
            background: var(--color-bg);
        }
        .faq-section .accordion {
            max-width: 800px;
            margin: 0 auto;
            border-radius: var(--border-radius);
            overflow: hidden;
        }
        .faq-section .accordion-item {
            background: var(--color-white);
            margin-bottom: 8px;
            border-radius: var(--border-radius) !important;
            border: 1px solid var(--color-border-light) !important;
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-section .accordion-item:hover {
            border-color: var(--color-border) !important;
        }
        .faq-section .accordion-title {
            font-size: 1rem !important;
            font-weight: 700 !important;
            color: var(--color-text) !important;
            padding: 18px 22px !important;
            border: none !important;
            background: var(--color-white) !important;
            transition: all var(--transition-fast);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .faq-section .accordion-title:hover {
            color: var(--color-primary) !important;
            background: rgba(196, 30, 58, 0.02) !important;
        }
        .faq-section .accordion-title::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.75rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-fast);
        }
        .faq-section .accordion-item.is-active .accordion-title::after {
            transform: rotate(180deg);
            color: var(--color-primary);
        }
        .faq-section .accordion-content {
            padding: 0 22px 20px !important;
            font-size: 0.93rem;
            color: var(--color-text-soft);
            line-height: 1.75;
            border: none !important;
            background: var(--color-white) !important;
        }
        .faq-section .is-active .accordion-title {
            color: var(--color-primary) !important;
            border-bottom: 1px solid var(--color-border-light) !important;
        }

        .news-section {
            background: var(--color-white);
        }
        .news-section .news-card {
            background: var(--color-bg);
            border-radius: var(--border-radius-lg);
            overflow: hidden;
            box-shadow: var(--color-card-shadow);
            transition: all var(--transition-base);
            height: 100%;
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
        }
        .news-section .news-card:hover {
            box-shadow: var(--color-card-shadow-hover);
            transform: translateY(-5px);
            border-color: transparent;
        }
        .news-section .news-card .news-img-wrap {
            height: 180px;
            overflow: hidden;
            flex-shrink: 0;
        }
        .news-section .news-card .news-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .news-section .news-card:hover .news-img-wrap img {
            transform: scale(1.05);
        }
        .news-section .news-card .news-body {
            padding: var(--spacing-md);
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-section .news-card .news-date {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-bottom: 4px;
            font-weight: 500;
        }
        .news-section .news-card .news-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .news-section .news-card .news-summary {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.55;
            flex: 1;
            margin-bottom: var(--spacing-sm);
        }
        .news-section .news-card .news-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--color-primary);
            transition: gap var(--transition-fast);
            margin-top: auto;
        }
        .news-section .news-card .news-link:hover {
            gap: 7px;
            color: var(--color-primary-dark);
        }

        .cta-section {
            background: linear-gradient(150deg, #1b3a5c 0%, #0d1b2a 100%);
            color: #fff;
            text-align: center;
            padding: var(--spacing-2xl) 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(196, 30, 58, 0.3) 0%, transparent 70%);
            z-index: 0;
        }
        .cta-section .container-custom {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: var(--spacing-sm);
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: var(--spacing-lg);
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 15px 32px;
            background: var(--color-accent);
            color: #1a1a2e;
            border-radius: 50px;
            font-weight: 800;
            font-size: 1.05rem;
            border: none;
            transition: all var(--transition-base);
            box-shadow: 0 6px 22px rgba(240, 165, 0, 0.4);
            cursor: pointer;
            text-decoration: none;
        }
        .cta-section .btn-cta-large:hover {
            background: var(--color-accent-light);
            box-shadow: 0 8px 28px rgba(240, 165, 0, 0.55);
            transform: translateY(-2px);
            color: #1a1a2e;
        }

        .footer-site {
            background: #111827;
            color: rgba(255, 255, 255, 0.7);
            padding: var(--spacing-2xl) 0 var(--spacing-lg);
        }
        .footer-site .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: var(--spacing-xl);
            margin-bottom: var(--spacing-xl);
        }
        @media (min-width: 576px) {
            .footer-site .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 992px) {
            .footer-site .footer-grid {
                grid-template-columns: 2fr 1fr 1fr 1.5fr;
            }
        }
        .footer-site .footer-brand-name {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: var(--spacing-sm);
        }
        .footer-site .footer-desc {
            font-size: 0.9rem;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: var(--spacing-md);
        }
        .footer-site h5 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-md);
        }
        .footer-site .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-site .footer-links li {
            margin-bottom: 8px;
        }
        .footer-site .footer-links li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }
        .footer-site .footer-links li a:hover {
            color: var(--color-accent);
        }
        .footer-site .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: var(--spacing-lg);
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-site .footer-bottom span {
            color: rgba(255, 255, 255, 0.5);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-base);
            cursor: pointer;
            border: none;
            text-decoration: none;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(196, 30, 58, 0.3);
        }
        .btn-primary:hover {
            background: var(--color-primary-dark);
            box-shadow: 0 6px 20px rgba(196, 30, 58, 0.45);
            transform: translateY(-1px);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
        }
        .btn-outline:hover {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }

        .text-primary {
            color: var(--color-primary) !important;
        }
        .text-accent {
            color: var(--color-accent) !important;
        }
        .bg-soft-primary {
            background: rgba(196, 30, 58, 0.05);
        }

        @media (max-width: 767px) {
            .hero-section h1 {
                font-size: 1.8rem;
            }
            .hero-section .hero-desc {
                font-size: 0.9rem;
            }
            .hero-section .hero-btns {
                flex-direction: column;
                gap: 10px;
            }
            .hero-section .btn-primary-hero,
            .hero-section .btn-outline-hero {
                width: 100%;
                justify-content: center;
                padding: 12px 20px;
                font-size: 0.9rem;
            }
            .section-title h2 {
                font-size: 1.4rem;
            }
            .stats-section .stat-number {
                font-size: 1.6rem;
            }
            .brand-story-section .story-image img {
                height: 240px;
            }
            .brand-story-section .story-text h3 {
                font-size: 1.3rem;
            }
            .services-section .service-img img {
                height: 180px;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .cta-section p {
                font-size: 0.9rem;
            }
            .footer-site .footer-grid {
                gap: var(--spacing-lg);
            }
        }

        @media (max-width: 520px) {
            .stats-section .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-sm);
            }
            .stats-section .stat-number {
                font-size: 1.4rem;
            }
            .advantages-section .adv-card {
                padding: var(--spacing-md);
            }
            .categories-section .cat-card .cat-img-wrap {
                height: 150px;
            }
            .news-section .news-card .news-img-wrap {
                height: 140px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #c8102e;
            --primary-dark: #a50d24;
            --primary-light: #f9d7dc;
            --accent: #f5a623;
            --accent-dark: #d4891a;
            --bg: #f8f9fa;
            --bg-white: #ffffff;
            --text: #1e1e1e;
            --text-secondary: #5a5a5a;
            --text-muted: #8a8a8a;
            --border: #e3e6ea;
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 6px rgba(0,0,0,0.04);
            --shadow: 0 8px 24px rgba(0,0,0,0.06);
            --shadow-lg: 0 16px 32px rgba(0,0,0,0.08);
            --transition: 0.2s ease;
            --nav-height: 72px;
        }

        * {
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
            color: var(--text);
            background: var(--bg);
            margin: 0;
            padding: 0;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        .container-custom {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Navigation */
        .nav-wrapper {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            position: sticky;
            top: 0;
            z-index: 40;
            height: var(--nav-height);
        }
        .top-bar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: var(--nav-height);
        }
        .top-bar-left {
            display: flex;
            align-items: center;
        }
        .logo-brand {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 2px;
        }
        .logo-num {
            color: var(--primary);
            font-weight: 800;
            font-size: 2rem;
            line-height: 1;
            margin-right: 2px;
        }
        .nav-links {
            list-style: none;
            display: flex;
            gap: 6px;
            margin: 0;
            padding: 0;
            align-items: center;
        }
        .nav-links a {
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            display: block;
        }
        .nav-links a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .nav-links a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }
        .nav-cta {
            background: var(--accent);
            color: #fff !important;
            padding: 10px 22px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .nav-cta:hover {
            background: var(--accent-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(245,166,35,0.3);
            color: #fff;
        }
        .top-bar-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        /* Mobile nav toggle */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--text);
            cursor: pointer;
            padding: 8px;
        }

        @media (max-width: 1024px) {
            .top-bar-right .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 16px 24px;
                box-shadow: var(--shadow);
                border-bottom: 2px solid var(--border);
                gap: 4px;
                z-index: 50;
            }
            .top-bar-right .nav-links.active-mobile {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
            .nav-links a {
                width: 100%;
                padding: 12px 16px;
                border-bottom: 1px solid var(--border);
                border-radius: 0;
            }
            .nav-links a:last-child {
                border-bottom: none;
            }
            .nav-cta {
                margin-left: 0;
            }
        }

        /* Page Hero */
        .page-hero {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            color: #fff;
            padding: 80px 0 70px;
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.15;
            z-index: 1;
        }
        .page-hero-content {
            position: relative;
            z-index: 2;
        }
        .page-hero h1 {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .page-hero .subtitle {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.8);
            max-width: 700px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }
        .hero-badge {
            display: inline-block;
            background: var(--accent);
            color: #1a1a2e;
            padding: 6px 20px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        /* Sections */
        .section {
            padding: 70px 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }
        .section-subtitle {
            color: var(--text-secondary);
            margin-bottom: 40px;
            font-size: 1.05rem;
        }
        .bg-white-section {
            background: var(--bg-white);
        }

        /* Cards */
        .guide-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
            border: 1px solid var(--border);
            height: 100%;
            display: flex;
            flex-direction: column;
            position: relative;
        }
        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary);
        }
        .guide-card .card-icon {
            font-size: 2.4rem;
            color: var(--primary);
            margin-bottom: 18px;
            background: var(--primary-light);
            width: 56px;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 14px;
        }
        .guide-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .guide-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            flex: 1;
            margin-bottom: 16px;
        }
        .guide-card .card-link {
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap 0.2s;
        }
        .guide-card .card-link:hover {
            gap: 8px;
            color: var(--primary-dark);
        }

        /* Article list */
        .article-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
            transition: background 0.2s;
        }
        .article-item:last-child {
            border-bottom: none;
        }
        .article-thumb {
            width: 180px;
            height: 120px;
            border-radius: var(--radius);
            object-fit: cover;
            flex-shrink: 0;
        }
        .article-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .article-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 4px;
        }
        .article-title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }
        .article-excerpt {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* FAQ */
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 16px;
            padding: 20px 24px;
            transition: all var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow);
        }
        .faq-question {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text);
        }
        .faq-answer {
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            color: #fff;
            text-align: center;
            padding: 70px 0;
            border-radius: var(--radius-lg);
            margin: 60px auto;
            max-width: 1100px;
            box-shadow: var(--shadow-lg);
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .btn-light {
            background: #fff;
            color: var(--primary);
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 700;
            display: inline-block;
            transition: all var(--transition);
            margin-top: 16px;
        }
        .btn-light:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
        }

        /* Footer */
        .footer-site {
            background: #1a1a2e;
            color: #fff;
            padding: 60px 0 30px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand-name {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .footer-desc {
            color: rgba(255,255,255,0.65);
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .footer-site h5 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--accent);
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a, .footer-links span {
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
            transition: color 0.2s;
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 24px;
            text-align: center;
            color: rgba(255,255,255,0.5);
            font-size: 0.85rem;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .article-item {
                flex-direction: column;
            }
            .article-thumb {
                width: 100%;
                height: 180px;
            }
            .page-hero h1 {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .page-hero {
                padding: 50px 0;
            }
            .section {
                padding: 50px 0;
            }
            .cta-section {
                margin: 30px 16px;
                padding: 40px 20px;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #0d1b2a;
            --color-primary-light: #1b2d45;
            --color-secondary: #c9a84c;
            --color-secondary-light: #d4b96a;
            --color-accent: #e74c3c;
            --color-accent-light: #f05a4a;
            --color-data-blue: #2980b9;
            --color-data-green: #27ae60;
            --color-data-orange: #e67e22;
            --color-bg: #f5f6f8;
            --color-bg-white: #ffffff;
            --color-bg-dark: #0d1b2a;
            --color-bg-card: #ffffff;
            --color-text: #2c3e50;
            --color-text-light: #5a6c7d;
            --color-text-muted: #8899a6;
            --color-text-white: #f0f1f3;
            --color-border: #e2e6ea;
            --color-border-light: #eef1f4;
            --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 30px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 14px 40px 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;
            --spacing-xs: 6px;
            --spacing-sm: 12px;
            --spacing-md: 20px;
            --spacing-lg: 32px;
            --spacing-xl: 48px;
            --spacing-2xl: 64px;
            --spacing-3xl: 80px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        a:focus-visible {
            outline: 2px solid var(--color-secondary);
            outline-offset: 3px;
            border-radius: 3px;
        }

        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-secondary);
            outline-offset: 2px;
        }

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

        @media (max-width: 640px) {
            .container-custom {
                padding-left: 14px;
                padding-right: 14px;
            }
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            background: var(--color-bg-white);
            border-bottom: 1px solid var(--color-border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
        }

        .top-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 10px 0;
            gap: 8px;
            min-height: 56px;
        }

        .top-bar-left {
            display: flex;
            align-items: center;
            flex-shrink: 0;
        }

        .logo-brand {
            display: flex;
            align-items: center;
            gap: 4px;
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

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

        .logo-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--color-accent);
            color: #fff;
            font-weight: 800;
            font-size: 1.3rem;
            padding: 4px 10px;
            border-radius: var(--radius-sm);
            letter-spacing: 1px;
            line-height: 1;
        }

        .top-bar-right {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .nav-links {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 2px;
            flex-wrap: wrap;
        }

        .nav-links li {
            margin: 0;
        }

        .nav-links a {
            display: inline-block;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-light);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--color-primary);
            background: rgba(0, 0, 0, 0.03);
        }

        .nav-links a.active {
            color: var(--color-accent);
            font-weight: 600;
            background: rgba(231, 76, 60, 0.06);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.9rem;
            background: var(--color-accent);
            color: #fff !important;
            white-space: nowrap;
            transition: all var(--transition-base);
            box-shadow: 0 3px 12px rgba(231, 76, 60, 0.3);
        }

        .nav-cta:hover {
            background: #c0392b;
            box-shadow: 0 6px 20px rgba(231, 76, 60, 0.4);
            transform: translateY(-2px);
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(231, 76, 60, 0.3);
        }

        @media (max-width: 1024px) {
            .nav-links a {
                padding: 7px 10px;
                font-size: 0.88rem;
            }
            .nav-cta {
                padding: 7px 14px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 768px) {
            .top-bar {
                gap: 6px;
                padding: 8px 0;
            }
            .top-bar-right {
                width: 100%;
                justify-content: flex-start;
                gap: 4px;
            }
            .nav-links {
                gap: 1px;
                flex-wrap: wrap;
            }
            .nav-links a {
                padding: 6px 9px;
                font-size: 0.8rem;
                border-radius: 4px;
            }
            .nav-cta {
                padding: 6px 12px;
                font-size: 0.78rem;
                border-radius: 6px;
                margin-left: 0 !important;
            }
            .logo-brand {
                font-size: 1.25rem;
            }
            .logo-num {
                font-size: 1.1rem;
                padding: 3px 8px;
            }
        }

        @media (max-width: 520px) {
            .nav-links a {
                padding: 5px 7px;
                font-size: 0.73rem;
            }
            .nav-cta {
                padding: 5px 10px;
                font-size: 0.72rem;
                gap: 3px;
            }
            .logo-brand {
                font-size: 1.1rem;
            }
            .logo-num {
                font-size: 0.95rem;
                padding: 3px 7px;
            }
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            background: var(--color-primary);
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            min-height: 320px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.88) 0%, rgba(13, 27, 42, 0.72) 60%, rgba(13, 27, 42, 0.55) 100%);
            z-index: 1;
        }

        .page-banner-content {
            position: relative;
            z-index: 2;
            color: #fff;
            padding: var(--spacing-xl) 0;
        }

        .page-banner-content .banner-label {
            display: inline-block;
            background: var(--color-secondary);
            color: var(--color-primary);
            font-weight: 700;
            font-size: 0.82rem;
            padding: 5px 14px;
            border-radius: 20px;
            letter-spacing: 1px;
            margin-bottom: var(--spacing-md);
            text-transform: uppercase;
        }

        .page-banner-content h1 {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 700;
            margin: 0 0 var(--spacing-sm);
            line-height: 1.25;
            letter-spacing: 1px;
        }

        .page-banner-content .banner-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 620px;
            line-height: 1.6;
            margin: 0;
        }

        @media (max-width: 768px) {
            .page-banner {
                min-height: 240px;
            }
            .page-banner-content h1 {
                font-size: 1.8rem;
            }
            .page-banner-content .banner-subtitle {
                font-size: 0.95rem;
            }
            .page-banner-content .banner-label {
                font-size: 0.72rem;
                padding: 4px 10px;
            }
        }

        /* ========== MAIN SECTIONS ========== */
        main {
            flex: 1;
        }

        .section {
            padding: var(--spacing-2xl) 0;
        }

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

        .section-title {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: var(--spacing-xs);
            letter-spacing: 0.5px;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-muted);
            margin-bottom: var(--spacing-lg);
            line-height: 1.5;
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-xl);
        }

        .section-header .section-title {
            margin-bottom: var(--spacing-xs);
        }

        .divider-accent {
            width: 50px;
            height: 3px;
            background: var(--color-secondary);
            border-radius: 2px;
            margin: var(--spacing-sm) auto var(--spacing-md);
        }

        .divider-accent.left {
            margin-left: 0;
            margin-right: auto;
        }

        /* ========== CARDS ========== */
        .card-trend {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-base);
            border: 1px solid var(--color-border-light);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .card-trend-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #e8ecf1;
        }

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

        .card-trend:hover .card-trend-image img {
            transform: scale(1.04);
        }

        .card-trend-image .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 14px;
            letter-spacing: 0.5px;
            z-index: 2;
        }

        .card-trend-image .card-badge.hot {
            background: var(--color-accent);
        }
        .card-trend-image .card-badge.data {
            background: var(--color-data-blue);
        }
        .card-trend-image .card-badge.new {
            background: var(--color-data-green);
        }

        .card-trend-body {
            padding: var(--spacing-md);
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-trend-body h3 {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-primary);
            margin: 0 0 6px;
            line-height: 1.3;
        }

        .card-trend-body p {
            font-size: 0.9rem;
            color: var(--color-text-light);
            margin: 0 0 var(--spacing-sm);
            flex: 1;
            line-height: 1.55;
        }

        .card-trend-stats {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .stat-chip {
            display: inline-block;
            background: var(--color-bg);
            color: var(--color-text-light);
            font-size: 0.78rem;
            padding: 4px 10px;
            border-radius: 14px;
            font-weight: 500;
            white-space: nowrap;
        }

        .stat-chip.up {
            color: var(--color-accent);
            background: rgba(231, 76, 60, 0.08);
        }
        .stat-chip.stable {
            color: var(--color-data-blue);
            background: rgba(41, 128, 185, 0.08);
        }
        .stat-chip.highlight {
            color: var(--color-data-green);
            background: rgba(39, 174, 96, 0.08);
        }

        .card-trend-footer {
            margin-top: auto;
            padding-top: var(--spacing-sm);
            border-top: 1px solid var(--color-border-light);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 8px;
        }

        .card-trend-footer .update-time {
            font-size: 0.75rem;
            color: var(--color-text-muted);
        }

        .card-trend-footer .btn-sm {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--color-accent);
            transition: color var(--transition-fast);
            padding: 4px 0;
        }

        .card-trend-footer .btn-sm:hover {
            color: #c0392b;
        }

        .card-trend-footer .btn-sm i {
            font-size: 0.7rem;
            margin-left: 2px;
        }

        /* ========== DATA HIGHLIGHT CARDS ========== */
        .data-highlight-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg) var(--spacing-md);
            text-align: center;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            height: 100%;
        }

        .data-highlight-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .data-highlight-card .data-icon {
            font-size: 2.4rem;
            color: var(--color-secondary);
            margin-bottom: var(--spacing-sm);
        }

        .data-highlight-card .data-value {
            font-family: var(--font-heading);
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1;
            margin-bottom: 4px;
            letter-spacing: 1px;
        }

        .data-highlight-card .data-label {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            font-weight: 500;
        }

        .data-highlight-card .data-trend {
            font-size: 0.78rem;
            margin-top: 6px;
            font-weight: 600;
        }

        .data-highlight-card .data-trend.positive {
            color: var(--color-accent);
        }
        .data-highlight-card .data-trend.neutral {
            color: var(--color-data-blue);
        }

        /* ========== ANALYSIS TOOLS LIST ========== */
        .tool-list-item {
            display: flex;
            align-items: flex-start;
            gap: var(--spacing-md);
            padding: var(--spacing-md);
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            margin-bottom: var(--spacing-sm);
        }

        .tool-list-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-border);
        }

        .tool-icon-circle {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: #fff;
        }

        .tool-icon-circle.blue {
            background: var(--color-data-blue);
        }
        .tool-icon-circle.green {
            background: var(--color-data-green);
        }
        .tool-icon-circle.orange {
            background: var(--color-data-orange);
        }
        .tool-icon-circle.red {
            background: var(--color-accent);
        }

        .tool-info h4 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-primary);
            margin: 0 0 4px;
        }

        .tool-info p {
            font-size: 0.85rem;
            color: var(--color-text-light);
            margin: 0;
            line-height: 1.5;
        }

        /* ========== BUTTONS ========== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            background: var(--color-accent);
            color: #fff;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: 0 4px 16px rgba(231, 76, 60, 0.3);
            text-align: center;
        }

        .btn-primary:hover {
            background: #c0392b;
            box-shadow: 0 8px 24px rgba(231, 76, 60, 0.4);
            transform: translateY(-2px);
            color: #fff;
        }

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

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 26px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-border);
            cursor: pointer;
            transition: all var(--transition-base);
            text-align: center;
        }

        .btn-outline:hover {
            border-color: var(--color-primary);
            background: rgba(13, 27, 42, 0.03);
            color: var(--color-primary);
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--color-bg-white);
            border-radius: var(--radius-xl);
            padding: var(--spacing-xl) var(--spacing-lg);
            box-shadow: var(--shadow-md);
        }

        .faq-item {
            border-bottom: 1px solid var(--color-border-light);
            padding: var(--spacing-md) 0;
            transition: all var(--transition-fast);
        }

        .faq-item:last-child {
            border-bottom: none;
        }

        .faq-question {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 0.9rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-base);
        }

        .faq-answer {
            font-size: 0.9rem;
            color: var(--color-text-light);
            line-height: 1.7;
            padding-top: 8px;
            display: block;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--color-primary);
            background-image: url('assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            padding: var(--spacing-2xl) var(--spacing-lg);
            text-align: center;
            color: #fff;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(13, 27, 42, 0.82);
            z-index: 1;
            border-radius: var(--radius-xl);
        }

        .cta-section>* {
            position: relative;
            z-index: 2;
        }

        .cta-section h3 {
            font-family: var(--font-heading);
            font-size: 1.7rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
        }

        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: var(--spacing-lg);
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== FOOTER ========== */
        .footer-site {
            background: var(--color-bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: var(--spacing-2xl) 0 var(--spacing-lg);
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: var(--spacing-xl);
            margin-bottom: var(--spacing-xl);
        }

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

        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
        }

        .footer-brand-name {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            letter-spacing: 0.5px;
        }

        .footer-desc {
            font-size: 0.85rem;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.5);
            margin: 0;
        }

        .footer-grid h5 {
            font-family: var(--font-heading);
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

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

        .footer-links li {
            margin-bottom: 7px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }

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

        .footer-links li span {
            font-size: 0.82rem;
            display: block;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: var(--spacing-md);
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.4);
            line-height: 1.6;
        }

        .footer-bottom span {
            color: rgba(255, 255, 255, 0.5);
        }

        /* ========== RESPONSIVE GRID HELPERS ========== */
        @media (max-width: 768px) {
            .section {
                padding: var(--spacing-xl) 0;
            }
            .section-title {
                font-size: 1.45rem;
            }
            .data-highlight-card .data-value {
                font-size: 1.8rem;
            }
            .faq-section {
                padding: var(--spacing-lg) var(--spacing-md);
                border-radius: var(--radius-lg);
            }
            .cta-section {
                padding: var(--spacing-xl) var(--spacing-md);
                border-radius: var(--radius-lg);
            }
            .cta-section h3 {
                font-size: 1.35rem;
            }
        }

        @media (max-width: 520px) {
            .section-title {
                font-size: 1.25rem;
            }
            .card-trend-body h3 {
                font-size: 1rem;
            }
            .tool-list-item {
                flex-direction: column;
                gap: var(--spacing-sm);
                align-items: flex-start;
            }
            .tool-icon-circle {
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
            }
        }

        /* Foundation overrides */
        .grid-container {
            max-width: 1200px;
        }
        .grid-margin-x>.cell {
            margin-bottom: 0;
        }
        .grid-margin-x {
            margin-bottom: -20px;
        }
        @media (max-width: 768px) {
            .grid-margin-x {
                margin-bottom: -14px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #c41e3a;
            --primary-dark: #a0182f;
            --primary-light: #e8485e;
            --secondary: #1a3a5c;
            --secondary-dark: #0f2640;
            --secondary-light: #2a5580;
            --accent-gold: #d4a843;
            --accent-gold-light: #e8c56d;
            --bg-light: #f8f9fa;
            --bg-white: #ffffff;
            --bg-dark: #1a1f2e;
            --text-primary: #1a1a2e;
            --text-secondary: #4a5568;
            --text-muted: #8895a7;
            --text-light: #cbd5e0;
            --text-white: #ffffff;
            --border-color: #e2e8f0;
            --border-light: #edf2f7;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --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 12px 36px rgba(0, 0, 0, 0.10), 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.14), 0 8px 20px 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', sans-serif;
            --container-max: 1240px;
            --container-narrow: 960px;
            --section-gap: 72px;
            --section-gap-sm: 48px;
        }

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

        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(--text-primary);
            background: var(--bg-light);
            margin: 0;
            padding: 0;
            min-width: 320px;
            overflow-x: hidden;
        }

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

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

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

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

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

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

        /* ========== HEADER / NAV ========== */
        .site-header {
            background: #ffffff;
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
        }

        .top-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 0;
            background: transparent;
            max-width: var(--container-max);
            margin: 0 auto;
            height: 64px;
        }

        .top-bar-left {
            display: flex;
            align-items: center;
            flex-shrink: 0;
        }

        .logo-brand {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--secondary);
            letter-spacing: -0.5px;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
        }
        .logo-brand:hover {
            opacity: 0.85;
            color: var(--secondary);
        }
        .logo-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            width: 44px;
            height: 36px;
            border-radius: var(--radius-sm);
            font-size: 1.35rem;
            font-weight: 900;
            letter-spacing: 0;
            line-height: 1;
        }

        .top-bar-right {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 2px;
            background: transparent;
        }
        .nav-links li {
            margin: 0;
        }
        .nav-links a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-links a:hover {
            color: var(--primary);
            background: rgba(196, 30, 58, 0.04);
        }
        .nav-links a.active {
            color: var(--primary);
            background: rgba(196, 30, 58, 0.07);
            font-weight: 700;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2.5px;
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff !important;
            background: var(--primary);
            border-radius: var(--radius-md);
            white-space: nowrap;
            transition: all var(--transition-base);
            box-shadow: 0 2px 8px rgba(196, 30, 58, 0.25);
            border: none;
        }
        .nav-cta:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 14px rgba(196, 30, 58, 0.35);
            transform: translateY(-1px);
            color: #fff !important;
        }
        .nav-cta i {
            font-size: 0.85rem;
        }

        /* Mobile nav toggle */
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 8px;
            cursor: pointer;
            line-height: 1;
        }

        /* ========== BANNER ========== */
        .page-banner {
            position: relative;
            background: linear-gradient(160deg, #0f2640 0%, #1a3a5c 40%, #1e4470 100%);
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center 30%;
            background-blend-mode: overlay;
            padding: 72px 0 64px;
            text-align: center;
            color: #fff;
            min-height: 340px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 38, 64, 0.7) 0%, rgba(26, 58, 92, 0.82) 100%);
            z-index: 1;
        }
        .page-banner .container-custom {
            position: relative;
            z-index: 2;
        }
        .page-banner .banner-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.6px;
            margin-bottom: 16px;
            color: var(--accent-gold-light);
        }
        .page-banner h1 {
            font-size: 2.8rem;
            font-weight: 900;
            margin: 0 0 12px;
            letter-spacing: -1px;
            line-height: 1.2;
            color: #fff;
        }
        .page-banner .banner-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 24px;
            line-height: 1.6;
        }
        .banner-search-wrap {
            display: flex;
            max-width: 480px;
            margin: 0 auto;
            gap: 0;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .banner-search-wrap input {
            flex: 1;
            padding: 13px 18px;
            border: none;
            font-size: 0.95rem;
            outline: none;
            background: #fff;
            color: var(--text-primary);
            min-width: 0;
        }
        .banner-search-wrap input::placeholder {
            color: var(--text-muted);
        }
        .banner-search-wrap button {
            padding: 13px 22px;
            background: var(--primary);
            color: #fff;
            border: none;
            font-weight: 700;
            font-size: 0.95rem;
            white-space: nowrap;
            transition: background var(--transition-fast);
        }
        .banner-search-wrap button:hover {
            background: var(--primary-dark);
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-sm {
            padding: var(--section-gap-sm) 0;
        }
        .section-bg-white {
            background: var(--bg-white);
        }
        .section-bg-light {
            background: var(--bg-light);
        }
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin: 0 0 8px;
            letter-spacing: -0.3px;
        }
        .section-header .section-divider {
            width: 50px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
            margin: 12px auto 0;
        }
        .section-header p {
            color: var(--text-secondary);
            font-size: 1rem;
            max-width: 560px;
            margin: 10px auto 0;
            line-height: 1.6;
        }

        /* ========== LOTTERY BALLS ========== */
        .ball-red {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, #e8485e 0%, #c41e3a 100%);
            color: #fff;
            font-weight: 800;
            font-size: 0.95rem;
            box-shadow: 0 3px 8px rgba(196, 30, 58, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.2);
            flex-shrink: 0;
        }
        .ball-blue {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, #3b8de0 0%, #1a6dcc 100%);
            color: #fff;
            font-weight: 800;
            font-size: 0.95rem;
            box-shadow: 0 3px 8px rgba(26, 109, 204, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.2);
            flex-shrink: 0;
        }
        .ball-orange {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, #f08c3a 0%, #e8590c 100%);
            color: #fff;
            font-weight: 800;
            font-size: 0.95rem;
            box-shadow: 0 3px 8px rgba(232, 89, 12, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.2);
            flex-shrink: 0;
        }
        .ball-teal {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, #2db5a0 0%, #0c6b9e 100%);
            color: #fff;
            font-weight: 800;
            font-size: 0.95rem;
            box-shadow: 0 3px 8px rgba(12, 107, 158, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.2);
            flex-shrink: 0;
        }
        .ball-dark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, #4a5568 0%, #2d3748 100%);
            color: #fff;
            font-weight: 800;
            font-size: 0.95rem;
            box-shadow: 0 3px 8px rgba(45, 55, 72, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.2);
            flex-shrink: 0;
        }
        .ball-sm {
            width: 30px;
            height: 30px;
            font-size: 0.8rem;
        }

        /* ========== CARDS ========== */
        .lottery-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 24px 22px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .lottery-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: #e0e5ec;
        }
        .lottery-card .card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 14px;
            flex-wrap: wrap;
            gap: 8px;
        }
        .lottery-card .card-lottery-name {
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--text-primary);
        }
        .lottery-card .card-issue {
            font-size: 0.8rem;
            color: var(--text-muted);
            background: var(--bg-light);
            padding: 4px 10px;
            border-radius: 12px;
            font-weight: 600;
        }
        .lottery-card .ball-row {
            display: flex;
            gap: 7px;
            flex-wrap: wrap;
            align-items: center;
            margin: 6px 0;
        }
        .lottery-card .ball-separator {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-muted);
            margin: 0 2px;
        }
        .lottery-card .card-meta {
            margin-top: auto;
            padding-top: 12px;
            font-size: 0.82rem;
            color: var(--text-muted);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            border-top: 1px solid var(--border-light);
        }
        .card-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.3px;
        }
        .card-tag-hot {
            background: #fff0f0;
            color: var(--primary);
        }
        .card-tag-new {
            background: #eef6ff;
            color: var(--secondary-light);
        }

        /* ========== STAT CARD ========== */
        .stat-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            height: 100%;
        }
        .stat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .stat-card .stat-icon {
            font-size: 2.4rem;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .stat-card .stat-number {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            line-height: 1;
        }
        .stat-card .stat-unit {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 4px;
            font-weight: 600;
        }

        /* ========== SCHEDULE TABLE ========== */
        .schedule-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            background: #fff;
            border: 1px solid var(--border-light);
        }
        .schedule-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
            font-size: 0.95rem;
        }
        .schedule-table thead th {
            background: var(--secondary);
            color: #fff;
            padding: 14px 16px;
            font-weight: 700;
            text-align: center;
            font-size: 0.9rem;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .schedule-table tbody td {
            padding: 13px 16px;
            text-align: center;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-primary);
            font-weight: 500;
        }
        .schedule-table tbody tr {
            transition: background var(--transition-fast);
        }
        .schedule-table tbody tr:hover {
            background: #fafbfc;
        }
        .schedule-table .status-live {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 12px;
            font-size: 0.78rem;
            font-weight: 700;
            background: #e6f9ee;
            color: #1a8a4a;
            animation: pulse-dot 1.8s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.5;
            }
        }
        .schedule-table .status-upcoming {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 12px;
            font-size: 0.78rem;
            font-weight: 700;
            background: #fff8e6;
            color: #b8780a;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            list-style: none;
            padding: 0;
        }
        .faq-list li {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            cursor: default;
        }
        .faq-list li:hover {
            box-shadow: var(--shadow-md);
            border-color: #dde2ea;
        }
        .faq-list li .faq-q {
            font-weight: 800;
            font-size: 1.05rem;
            color: var(--text-primary);
            margin-bottom: 6px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .faq-list li .faq-q .faq-icon {
            color: var(--primary);
            flex-shrink: 0;
            margin-top: 2px;
        }
        .faq-list li .faq-a {
            color: var(--text-secondary);
            font-size: 0.93rem;
            line-height: 1.7;
            padding-left: 26px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(150deg, #1a3a5c 0%, #0f2640 100%);
            color: #fff;
            text-align: center;
            padding: 60px 0;
            border-radius: 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(212, 168, 67, 0.08);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -50px;
            left: -70px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(196, 30, 58, 0.06);
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 900;
            margin: 0 0 10px;
            position: relative;
            z-index: 2;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 500px;
            margin: 0 auto 24px;
            position: relative;
            z-index: 2;
        }
        .btn-cta-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 700;
            border-radius: var(--radius-lg);
            background: var(--accent-gold);
            color: #1a1a2e !important;
            transition: all var(--transition-base);
            box-shadow: 0 6px 20px rgba(212, 168, 67, 0.35);
            position: relative;
            z-index: 2;
            border: none;
        }
        .btn-cta-lg:hover {
            background: var(--accent-gold-light);
            box-shadow: 0 8px 28px rgba(212, 168, 67, 0.5);
            transform: translateY(-2px);
            color: #1a1a2e !important;
        }

        /* ========== FOOTER ========== */
        .footer-site {
            background: #0f1a2e;
            color: #fff;
            padding: 48px 0 24px;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand-name {
            font-size: 1.35rem;
            font-weight: 800;
            margin-bottom: 8px;
            color: #fff;
        }
        .footer-desc {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            line-height: 1.7;
            margin: 0;
        }
        .footer-grid h5 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
            letter-spacing: 0.3px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 7px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--accent-gold-light);
        }
        .footer-links i {
            width: 16px;
            margin-right: 4px;
            font-size: 0.8rem;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 18px;
            text-align: center;
            color: rgba(255, 255, 255, 0.45);
            font-size: 0.8rem;
        }
        .footer-bottom span {
            color: rgba(255, 255, 255, 0.6);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .page-banner h1 {
                font-size: 2.2rem;
            }
            .page-banner {
                min-height: 280px;
                padding: 52px 0 44px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .section {
                padding: 52px 0;
            }
            .section-sm {
                padding: 36px 0;
            }
            .section-header h2 {
                font-size: 1.7rem;
            }
            .stat-card .stat-number {
                font-size: 1.8rem;
            }
            .ball-red,
            .ball-blue,
            .ball-orange,
            .ball-teal,
            .ball-dark {
                width: 32px;
                height: 32px;
                font-size: 0.82rem;
            }
            .ball-sm {
                width: 26px;
                height: 26px;
                font-size: 0.7rem;
            }
        }

        @media (max-width: 768px) {
            .top-bar {
                height: 56px;
                padding: 0 8px;
            }
            .logo-brand {
                font-size: 1.25rem;
            }
            .logo-num {
                width: 36px;
                height: 30px;
                font-size: 1.1rem;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 56px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 12px 16px;
                gap: 2px;
                box-shadow: var(--shadow-lg);
                border-bottom: 2px solid var(--border-color);
                z-index: 999;
                border-radius: 0 0 var(--radius-md) var(--radius-md);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                display: block;
                padding: 10px 14px;
                font-size: 0.95rem;
                border-radius: var(--radius-sm);
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-cta {
                font-size: 0.78rem;
                padding: 7px 13px;
                gap: 3px;
            }
            .mobile-toggle {
                display: block;
            }
            .page-banner {
                min-height: 240px;
                padding: 40px 0 36px;
            }
            .page-banner h1 {
                font-size: 1.7rem;
            }
            .page-banner .banner-subtitle {
                font-size: 0.9rem;
            }
            .banner-search-wrap {
                max-width: 100%;
                flex-direction: column;
                border-radius: var(--radius-md);
                gap: 0;
            }
            .banner-search-wrap input {
                border-radius: var(--radius-md) var(--radius-md) 0 0;
                padding: 12px 16px;
            }
            .banner-search-wrap button {
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                padding: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .section {
                padding: 40px 0;
            }
            .section-sm {
                padding: 28px 0;
            }
            .section-header h2 {
                font-size: 1.45rem;
            }
            .lottery-card {
                padding: 18px 14px;
            }
            .lottery-card .ball-row {
                gap: 4px;
            }
            .ball-red,
            .ball-blue,
            .ball-orange,
            .ball-teal,
            .ball-dark {
                width: 28px;
                height: 28px;
                font-size: 0.72rem;
            }
            .ball-separator {
                font-size: 1.1rem;
                margin: 0 1px;
            }
            .stat-card .stat-number {
                font-size: 1.5rem;
            }
            .stat-card .stat-icon {
                font-size: 1.8rem;
            }
            .schedule-table thead th,
            .schedule-table tbody td {
                padding: 8px 10px;
                font-size: 0.78rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section p {
                font-size: 0.9rem;
            }
            .faq-list li {
                padding: 16px 18px;
            }
            .faq-list li .faq-q {
                font-size: 0.95rem;
            }
            .faq-list li .faq-a {
                font-size: 0.85rem;
                padding-left: 22px;
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                padding: 0 14px;
            }
            .container-narrow {
                padding: 0 14px;
            }
            .page-banner h1 {
                font-size: 1.4rem;
            }
            .page-banner {
                min-height: 200px;
                padding: 32px 0 28px;
            }
            .page-banner .banner-badge {
                font-size: 0.7rem;
                padding: 4px 12px;
            }
            .lottery-card {
                padding: 14px 10px;
            }
            .lottery-card .card-lottery-name {
                font-size: 0.95rem;
            }
            .ball-red,
            .ball-blue,
            .ball-orange,
            .ball-teal,
            .ball-dark {
                width: 24px;
                height: 24px;
                font-size: 0.65rem;
            }
            .ball-sm {
                width: 22px;
                height: 22px;
                font-size: 0.6rem;
            }
            .ball-separator {
                font-size: 0.9rem;
            }
            .stat-card {
                padding: 18px 12px;
            }
            .stat-card .stat-number {
                font-size: 1.3rem;
            }
            .section-header h2 {
                font-size: 1.25rem;
            }
            .btn-cta-lg {
                padding: 12px 22px;
                font-size: 0.9rem;
            }
            .nav-cta {
                font-size: 0.7rem;
                padding: 6px 10px;
                gap: 2px;
            }
            .logo-brand {
                font-size: 1.1rem;
            }
            .logo-num {
                width: 30px;
                height: 26px;
                font-size: 0.95rem;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #D4302B;
            --color-primary-dark: #A8221E;
            --color-primary-light: #F5E6E5;
            --color-secondary: #1A3C5E;
            --color-secondary-light: #2A5A8A;
            --color-accent: #F0A500;
            --color-accent-dark: #D49100;
            --color-bg: #F9F7F5;
            --color-white: #FFFFFF;
            --color-text: #2C2C2C;
            --color-text-light: #5C5C5C;
            --color-text-muted: #8A8A8A;
            --color-border: #E5E0DB;
            --color-border-light: #F0EDE9;
            --color-success: #2E8B57;
            --color-card-bg: #FFFFFF;
            --color-footer-bg: #1A1E24;
            --color-footer-text: #B0B6BF;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 50%;
            --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 3px 10px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.13);
            --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.16);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 56px;
            --spacing-2xl: 72px;
            --spacing-3xl: 96px;
            --font-xs: 0.75rem;
            --font-sm: 0.875rem;
            --font-base: 1rem;
            --font-md: 1.125rem;
            --font-lg: 1.25rem;
            --font-xl: 1.5rem;
            --font-2xl: 1.875rem;
            --font-3xl: 2.25rem;
            --font-4xl: 3rem;
            --transition-fast: 0.15s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.4s ease;
            --max-width: 1240px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            min-height: 100vh;
        }

        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;
            border: none;
            outline: none;
        }

        input,
        select {
            font-family: inherit;
            outline: none;
        }

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

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

        @media (min-width: 768px) {
            .container-custom {
                padding-left: 32px;
                padding-right: 32px;
            }
        }

        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 40px;
                padding-right: 40px;
            }
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            background: var(--color-white);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.07);
            border-bottom: 1px solid var(--color-border-light);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            height: 64px;
            max-width: var(--max-width);
            margin: 0 auto;
        }

        @media (min-width: 768px) {
            .header-inner {
                padding: 0 32px;
                height: 70px;
            }
        }

        @media (min-width: 1024px) {
            .header-inner {
                padding: 0 40px;
                height: 76px;
            }
        }

        .logo-brand {
            display: flex;
            align-items: center;
            gap: 4px;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--color-secondary);
            white-space: nowrap;
            letter-spacing: -0.3px;
        }

        .logo-num {
            color: var(--color-primary);
            font-weight: 800;
            font-size: 1.55rem;
            letter-spacing: -1px;
        }

        .logo-brand:hover {
            color: var(--color-secondary);
            opacity: 0.9;
        }

        .nav-right-group {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-links {
            display: none;
            gap: 6px;
            align-items: center;
        }

        @media (min-width: 1024px) {
            .nav-links {
                display: flex;
            }
        }

        .nav-links a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 22px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-light);
            transition: all var(--transition-base);
            white-space: nowrap;
        }

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

        .nav-links a.active {
            color: var(--color-primary);
            background: #FEF0EF;
            font-weight: 600;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 600;
            background: var(--color-primary);
            color: #fff !important;
            white-space: nowrap;
            transition: all var(--transition-base);
            box-shadow: 0 4px 14px rgba(212, 48, 43, 0.25);
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--color-primary-dark);
            box-shadow: 0 6px 20px rgba(212, 48, 43, 0.35);
            transform: translateY(-1px);
        }

        .mobile-menu-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: transparent;
            border: 1px solid var(--color-border);
            font-size: 1.2rem;
            color: var(--color-text);
            transition: all var(--transition-base);
            flex-shrink: 0;
        }

        .mobile-menu-btn:hover {
            background: var(--color-bg);
            border-color: var(--color-text-muted);
        }

        @media (min-width: 1024px) {
            .mobile-menu-btn {
                display: none;
            }
        }

        .mobile-nav-panel {
            display: none;
            position: absolute;
            top: 64px;
            left: 0;
            right: 0;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-md);
            padding: 16px 20px;
            flex-direction: column;
            gap: 4px;
            z-index: 999;
        }

        .mobile-nav-panel.is-open {
            display: flex;
        }

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

        .mobile-nav-panel a:hover,
        .mobile-nav-panel a.active {
            color: var(--color-primary);
            background: var(--color-primary-light);
        }

        @media (min-width: 1024px) {
            .mobile-nav-panel {
                display: none !important;
            }
        }

        @media (min-width: 768px) and (max-width: 1023px) {
            .header-inner {
                height: 68px;
            }
            .mobile-nav-panel {
                top: 68px;
            }
            .nav-links {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
            }
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: var(--color-secondary) url('assets/images/backpic/back-2.webp') center / cover no-repeat;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 36, 50, 0.82) 0%, rgba(26, 36, 50, 0.65) 100%);
            z-index: 1;
        }

        .page-banner-content {
            position: relative;
            z-index: 2;
            padding: 48px 20px;
            max-width: 720px;
            margin: 0 auto;
        }

        .page-banner-tag {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            color: #fff;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .page-banner h1 {
            font-size: 2.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            line-height: 1.3;
        }

        .page-banner p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.6;
            margin-bottom: 0;
        }

        @media (min-width: 768px) {
            .page-banner {
                min-height: 380px;
            }
            .page-banner h1 {
                font-size: 2.8rem;
            }
            .page-banner p {
                font-size: 1.2rem;
            }
        }

        @media (min-width: 1024px) {
            .page-banner {
                min-height: 440px;
            }
            .page-banner h1 {
                font-size: 3.2rem;
            }
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-bar {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            padding: 12px 0;
        }
        .breadcrumb-bar .container-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb-bar a {
            color: var(--color-text-light);
            transition: color var(--transition-base);
        }
        .breadcrumb-bar a:hover {
            color: var(--color-primary);
        }
        .breadcrumb-bar .sep {
            color: var(--color-border);
        }
        .breadcrumb-bar .current {
            color: var(--color-primary);
            font-weight: 500;
        }

        /* ========== SECTION COMMONS ========== */
        .section {
            padding: var(--spacing-xl) 0;
        }
        @media (min-width: 768px) {
            .section {
                padding: var(--spacing-2xl) 0;
            }
        }
        @media (min-width: 1024px) {
            .section {
                padding: var(--spacing-3xl) 0;
            }
        }
        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-lg);
        }
        .section-header .section-tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 18px;
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            margin-bottom: 10px;
        }
        .section-header h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
            letter-spacing: -0.3px;
        }
        .section-header p {
            font-size: 1rem;
            color: var(--color-text-light);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }
        @media (min-width: 768px) {
            .section-header h2 {
                font-size: 2.2rem;
            }
        }
        .bg-white-section {
            background: var(--color-white);
        }
        .bg-light-section {
            background: var(--color-bg);
        }

        /* ========== LOTTERY BALLS ========== */
        .ball {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.95rem;
            color: #fff;
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
            flex-shrink: 0;
        }
        .ball-red {
            background: linear-gradient(145deg, #E83A30, #C62828);
        }
        .ball-blue {
            background: linear-gradient(145deg, #3B7DD8, #1A5CAA);
        }
        .ball-gold {
            background: linear-gradient(145deg, #F5A623, #D4840A);
            color: #4A2800;
        }
        .ball-group {
            display: flex;
            gap: 7px;
            flex-wrap: wrap;
            align-items: center;
        }
        .ball-sep {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text-muted);
            margin: 0 2px;
            flex-shrink: 0;
        }

        /* ========== LOTTERY RESULT CARD ========== */
        .result-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            height: 100%;
        }
        .result-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: #ddd;
        }
        .result-card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 16px;
            flex-wrap: wrap;
            gap: 8px;
        }
        .result-card-title {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--color-text);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .result-card-title .icon-dot {
            width: 10px;
            height: 10px;
            border-radius: var(--radius-full);
            background: var(--color-success);
            display: inline-block;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                box-shadow: 0 0 0 0 rgba(46, 139, 87, 0.5);
            }
            50% {
                opacity: 0.6;
                box-shadow: 0 0 0 8px rgba(46, 139, 87, 0);
            }
        }
        .result-card-period {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            font-weight: 500;
            background: var(--color-bg);
            padding: 4px 12px;
            border-radius: 12px;
        }
        .result-card-body {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .result-card-info {
            font-size: 0.85rem;
            color: var(--color-text-light);
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 8px;
            border-top: 1px dashed var(--color-border);
        }
        .result-card-info span {
            white-space: nowrap;
        }

        /* ========== GRID CARDS WITH IMAGE ========== */
        .lottery-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }
        @media (min-width: 640px) {
            .lottery-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .lottery-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 24px;
            }
        }
        .lottery-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .lottery-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .lottery-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }
        .lottery-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .lottery-card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text);
            margin: 0;
        }
        .lottery-card-body p {
            font-size: 0.9rem;
            color: var(--color-text-light);
            line-height: 1.55;
            margin: 0;
            flex: 1;
        }
        .lottery-card-body .card-meta {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .lottery-card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-primary);
            transition: all var(--transition-base);
            margin-top: auto;
        }
        .lottery-card-body .card-link:hover {
            color: var(--color-primary-dark);
            gap: 10px;
        }

        /* ========== STATS ROW ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        @media (min-width: 640px) {
            .stats-row {
                grid-template-columns: repeat(4, 1fr);
                gap: 20px;
            }
        }
        .stat-card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-sm);
            border-color: #ddd;
        }
        .stat-card .stat-icon {
            font-size: 1.8rem;
            margin-bottom: 8px;
            color: var(--color-primary);
        }
        .stat-card .stat-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--color-secondary);
            letter-spacing: -1px;
            margin-bottom: 4px;
        }
        .stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            font-weight: 500;
        }

        /* ========== SCHEDULE TABLE ========== */
        .schedule-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
        }
        .schedule-table {
            width: 100%;
            min-width: 600px;
            border-collapse: collapse;
            background: var(--color-white);
        }
        .schedule-table thead th {
            background: var(--color-secondary);
            color: #fff;
            padding: 14px 16px;
            font-size: 0.9rem;
            font-weight: 600;
            text-align: left;
            white-space: nowrap;
        }
        .schedule-table tbody td {
            padding: 13px 16px;
            font-size: 0.9rem;
            color: var(--color-text);
            border-bottom: 1px solid var(--color-border-light);
            white-space: nowrap;
        }
        .schedule-table tbody tr:hover {
            background: #FAFAF8;
        }
        .schedule-table tbody tr:last-child td {
            border-bottom: none;
        }
        .schedule-table .badge-freq {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 0.78rem;
            font-weight: 600;
            background: #E8F5E9;
            color: #2E7D32;
        }
        .schedule-table .badge-freq.daily {
            background: #FFF3E0;
            color: #E65100;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: #ddd;
            box-shadow: var(--shadow-xs);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            background: transparent;
            width: 100%;
            text-align: left;
            transition: all var(--transition-base);
            gap: 12px;
            border: none;
            font-family: inherit;
        }
        .faq-question:hover {
            color: var(--color-primary);
            background: #FEFCFB;
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-base);
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-full);
            background: var(--color-bg);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            color: var(--color-primary);
            background: var(--color-primary-light);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 20px 20px 20px;
        }
        .faq-answer p {
            font-size: 0.92rem;
            color: var(--color-text-light);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(160deg, var(--color-secondary) 0%, #0F1F33 100%);
            border-radius: var(--radius-xl);
            padding: 40px 24px;
            text-align: center;
            margin: 0 20px;
            position: relative;
            overflow: hidden;
        }
        @media (min-width: 768px) {
            .cta-section {
                padding: 56px 40px;
                margin: 0 32px;
            }
        }
        @media (min-width: 1024px) {
            .cta-section {
                padding: 64px 48px;
                margin: 0 auto;
                max-width: var(--max-width);
            }
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: var(--radius-full);
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 140px;
            height: 140px;
            border-radius: var(--radius-full);
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 2;
            max-width: 600px;
            margin: 0 auto;
        }
        .cta-section h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 24px;
            line-height: 1.6;
        }
        .btn-primary-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 28px;
            font-size: 1rem;
            font-weight: 700;
            background: var(--color-primary);
            color: #fff;
            transition: all var(--transition-base);
            box-shadow: 0 6px 22px rgba(212, 48, 43, 0.4);
            border: none;
            cursor: pointer;
            text-decoration: none;
        }
        .btn-primary-lg:hover {
            background: var(--color-primary-dark);
            box-shadow: 0 10px 30px rgba(212, 48, 43, 0.5);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ========== FOOTER ========== */
        .footer-site {
            background: var(--color-footer-bg);
            color: var(--color-footer-text);
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
                gap: 40px;
            }
        }
        .footer-brand-name {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.6;
            color: var(--color-footer-text);
            margin: 0;
        }
        .footer-grid h5 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 7px;
        }
        .footer-links li a,
        .footer-links li span {
            font-size: 0.88rem;
            color: var(--color-footer-text);
            transition: color var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-links li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom p {
            margin: 0;
        }

        /* ========== UTILITY ========== */
        .text-center {
            text-align: center;
        }
        .mt-sm {
            margin-top: var(--spacing-sm);
        }
        .mt-md {
            margin-top: var(--spacing-md);
        }
        .mt-lg {
            margin-top: var(--spacing-lg);
        }
        .mb-sm {
            margin-bottom: var(--spacing-sm);
        }
        .mb-md {
            margin-bottom: var(--spacing-md);
        }
        .mb-lg {
            margin-bottom: var(--spacing-lg);
        }

        /* ========== RESPONSIVE FINE-TUNING ========== */
        @media (max-width: 767px) {
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner p {
                font-size: 0.95rem;
            }
            .ball {
                width: 32px;
                height: 32px;
                font-size: 0.82rem;
            }
            .ball-group {
                gap: 4px;
            }
            .ball-sep {
                font-size: 0.9rem;
                margin: 0 1px;
            }
            .result-card {
                padding: 16px;
            }
            .stat-card .stat-num {
                font-size: 1.4rem;
            }
            .stat-card .stat-icon {
                font-size: 1.4rem;
            }
            .cta-section h3 {
                font-size: 1.3rem;
            }
            .nav-cta {
                padding: 8px 14px;
                font-size: 0.8rem;
                gap: 4px;
            }
            .logo-brand {
                font-size: 1.15rem;
            }
            .logo-num {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                padding: 0 12px;
                height: 58px;
            }
            .mobile-nav-panel {
                top: 58px;
            }
            .page-banner {
                min-height: 260px;
            }
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .page-banner-content {
                padding: 32px 16px;
            }
            .section {
                padding: var(--spacing-lg) 0;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .stat-card {
                padding: 16px 12px;
            }
            .stat-card .stat-num {
                font-size: 1.2rem;
            }
            .cta-section {
                padding: 28px 16px;
                margin: 0 12px;
                border-radius: var(--radius-lg);
            }
            .btn-primary-lg {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
        }