/* roulang page: index */
:root {
            --primary: #0f2b46;
            --primary-light: #1a3f63;
            --accent: #c8963e;
            --accent-light: #d4a855;
            --accent-dark: #b07d2a;
            --bg: #ffffff;
            --bg-light: #f7f8fa;
            --bg-alt: #f0f2f5;
            --text: #1a1a2e;
            --text-secondary: #5a6070;
            --text-muted: #8b919e;
            --border: #e2e5ea;
            --border-light: #eef0f4;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.06), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.08), 0 4px 10px rgba(0, 0, 0, 0.05);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.10), 0 6px 16px rgba(0, 0, 0, 0.06);
            --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.12), 0 8px 24px rgba(0, 0, 0, 0.07);
            --transition: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1260px;
            --header-height: 68px;
        }

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

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

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }
        input {
            font-family: inherit;
            outline: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            height: var(--header-height);
            display: flex;
            align-items: center;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            gap: 20px;
        }
        @media (max-width: 768px) {
            .header-inner {
                padding: 0 16px;
            }
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            z-index: 1001;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--accent);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
        }
        .nav-links li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 15px;
            border-radius: 20px;
            font-size: 0.93rem;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition);
            position: relative;
        }
        .nav-links li a:hover {
            color: var(--primary);
            background: var(--bg-alt);
        }
        .nav-links li a.active {
            color: var(--accent);
            background: #fdf6ed;
            font-weight: 600;
        }
        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: 24px;
            padding: 7px 14px;
            gap: 8px;
            transition: all var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(200, 150, 62, 0.1);
            background: #fff;
        }
        .search-box input {
            border: none;
            background: transparent;
            font-size: 0.88rem;
            color: var(--text);
            width: 140px;
            padding: 0;
        }
        .search-box input::placeholder {
            color: var(--text-muted);
        }
        .search-box button {
            background: none;
            border: none;
            color: var(--text-muted);
            padding: 0;
            font-size: 14px;
            cursor: pointer;
            transition: color var(--transition);
        }
        .search-box button:hover {
            color: var(--accent);
        }
        .btn-cta-header {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent);
            color: #fff;
            padding: 9px 20px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            transition: all var(--transition);
            box-shadow: 0 2px 8px rgba(200, 150, 62, 0.3);
        }
        .btn-cta-header:hover {
            background: var(--accent-dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(200, 150, 62, 0.4);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--text);
            padding: 8px;
            z-index: 1001;
            cursor: pointer;
        }

        @media (max-width: 1024px) {
            .search-box input {
                width: 100px;
            }
            .nav-links li a {
                padding: 8px 10px;
                font-size: 0.85rem;
            }
            .btn-cta-header {
                padding: 8px 14px;
                font-size: 0.82rem;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                font-size: 0.95rem;
                justify-content: flex-start;
            }
            .nav-links li a.active::after {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .search-box {
                display: none;
            }
            .btn-cta-header {
                padding: 7px 14px;
                font-size: 0.8rem;
            }
            .header-inner {
                gap: 10px;
            }
        }
        @media (max-width: 520px) {
            .btn-cta-header {
                display: none;
            }
            .logo-text {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, rgba(15, 43, 70, 0.88) 0%, rgba(15, 43, 70, 0.78) 40%, rgba(10, 30, 50, 0.9) 100%), url('assets/images/backpic/back-1.webp') center/cover no-repeat;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -20%;
            width: 60%;
            height: 200%;
            background: radial-gradient(ellipse, rgba(200, 150, 62, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
            padding: 60px 0;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(200, 150, 62, 0.18);
            border: 1px solid rgba(200, 150, 62, 0.35);
            color: #f0d78c;
            padding: 7px 18px;
            border-radius: 24px;
            font-size: 0.88rem;
            font-weight: 500;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }
        .hero-title {
            font-size: clamp(2.2rem, 5vw, 3.4rem);
            font-weight: 800;
            color: #ffffff;
            line-height: 1.2;
            margin: 0 0 16px;
            letter-spacing: -0.02em;
        }
        .hero-title span {
            color: #f0d78c;
        }
        .hero-desc {
            font-size: 1.12rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.75;
            margin: 0 0 28px;
            max-width: 560px;
        }
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            padding: 13px 28px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            box-shadow: 0 4px 18px rgba(200, 150, 62, 0.35);
            letter-spacing: 0.01em;
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            color: #fff;
            box-shadow: 0 6px 24px rgba(200, 150, 62, 0.45);
            transform: translateY(-2px);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            padding: 13px 28px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid rgba(255, 255, 255, 0.45);
            transition: all var(--transition);
        }
        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            transform: translateY(-2px);
        }
        @media (max-width: 768px) {
            .hero-section {
                min-height: 440px;
            }
            .hero-content {
                padding: 40px 0;
            }
            .hero-desc {
                font-size: 1rem;
            }
        }

        /* Section Common */
        .section {
            padding: 64px 0;
        }
        .section-sm {
            padding: 40px 0;
        }
        .section-lg {
            padding: 80px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 8px;
        }
        .section-title {
            font-size: clamp(1.6rem, 3.5vw, 2.2rem);
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 10px;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }
        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }
            .section-lg {
                padding: 50px 0;
            }
            .section-header {
                margin-bottom: 28px;
            }
        }

        /* Stats Bar */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--accent);
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.03em;
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-number span {
            color: var(--accent);
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .stat-card {
                padding: 20px 16px;
            }
            .stat-number {
                font-size: 2rem;
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-number {
                font-size: 1.7rem;
            }
        }

        /* Advantage Cards */
        .advantage-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .adv-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            text-align: center;
        }
        .adv-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .adv-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 24px;
            color: #fff;
            background: var(--primary);
            transition: all var(--transition);
        }
        .adv-card:nth-child(1) .adv-icon {
            background: #0f2b46;
        }
        .adv-card:nth-child(2) .adv-icon {
            background: #1a4a6e;
        }
        .adv-card:nth-child(3) .adv-icon {
            background: #c8963e;
        }
        .adv-card:nth-child(4) .adv-icon {
            background: #2d6a4f;
        }
        .adv-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 8px;
        }
        .adv-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }
        @media (max-width: 1024px) {
            .advantage-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 520px) {
            .advantage-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .adv-card {
                padding: 24px 20px;
            }
        }

        /* Category Cards */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .cat-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            background: #fff;
            cursor: pointer;
            display: block;
            color: inherit;
        }
        .cat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-5px);
            color: inherit;
        }
        .cat-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .cat-card-body {
            padding: 20px 20px 24px;
        }
        .cat-card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 6px;
        }
        .cat-card-body p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.5;
        }
        .cat-card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: #fff;
            padding: 5px 12px;
            border-radius: 16px;
            font-size: 0.78rem;
            font-weight: 600;
            z-index: 3;
        }
        @media (max-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 600px) {
            .category-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .cat-card-img {
                height: 180px;
            }
        }

        /* Brand Story */
        .brand-story-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .brand-story-image {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .brand-story-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 4/3;
        }
        .brand-story-text h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 14px;
        }
        .brand-story-text p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0 0 12px;
        }
        @media (max-width: 768px) {
            .brand-story-block {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .brand-story-image {
                order: -1;
            }
        }

        /* Hot Events */
        .events-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }
        .event-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .event-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .event-date-badge {
            flex-shrink: 0;
            width: 50px;
            height: 50px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.75rem;
            line-height: 1.2;
        }
        .event-date-badge .day {
            font-size: 1.2rem;
        }
        .event-info h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 4px;
        }
        .event-info p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin: 0;
        }
        @media (max-width: 1024px) {
            .events-list {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 600px) {
            .events-list {
                grid-template-columns: 1fr;
            }
        }

        /* Partners */
        .partners-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 32px;
        }
        .partner-item {
            padding: 16px 24px;
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            font-weight: 600;
            color: var(--text-secondary);
            font-size: 0.95rem;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            white-space: nowrap;
        }
        .partner-item:hover {
            box-shadow: var(--shadow-md);
            color: var(--accent);
            border-color: var(--accent);
        }

        /* Testimonials */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .testimonial-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
        }
        .testimonial-stars {
            color: #f0b429;
            font-size: 14px;
            margin-bottom: 10px;
            letter-spacing: 2px;
        }
        .testimonial-card p {
            font-size: 0.93rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 14px;
            font-style: italic;
        }
        .testimonial-author {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text);
        }
        .testimonial-role {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        @media (max-width: 1024px) {
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 600px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 22px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            text-align: left;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: color var(--transition);
            gap: 12px;
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-question i {
            flex-shrink: 0;
            transition: transform var(--transition);
            color: var(--text-muted);
            font-size: 14px;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
        }
        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 0.93rem;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* News */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .news-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .news-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .news-card-body {
            padding: 18px 20px 22px;
        }
        .news-card-date {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 6px;
        }
        .news-card-body h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 8px;
            line-height: 1.4;
        }
        .news-card-body p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 0 0 12px;
            line-height: 1.5;
        }
        .btn-read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
            transition: all var(--transition);
        }
        .btn-read-more:hover {
            color: var(--accent-dark);
            gap: 10px;
        }
        @media (max-width: 1024px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 600px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
            .news-card-img {
                height: 200px;
            }
        }

        /* CTA Section */
        .cta-section {
            background: var(--primary);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
            margin: 0 24px;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 50%;
            height: 160%;
            background: radial-gradient(ellipse, rgba(200, 150, 62, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 10px;
        }
        .cta-inner p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.8);
            margin: 0 0 22px;
            line-height: 1.6;
        }
        .btn-cta-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            padding: 14px 32px;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1.05rem;
            transition: all var(--transition);
            box-shadow: 0 6px 24px rgba(200, 150, 62, 0.4);
        }
        .btn-cta-lg:hover {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 8px 32px rgba(255, 255, 255, 0.25);
            transform: translateY(-2px);
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 36px 24px;
                margin: 0 16px;
                border-radius: var(--radius-lg);
            }
            .cta-inner h2 {
                font-size: 1.4rem;
            }
        }

        /* Footer */
        .site-footer {
            background: #0a1a2a;
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 24px;
            margin-top: 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo-text-footer {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            display: block;
        }
        .footer-brand .logo-text-footer span {
            color: #f0d78c;
        }
        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.6;
            margin: 0;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: #f0d78c;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* Back to top */
        .back-to-top {
            position: fixed;
            bottom: 28px;
            right: 28px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            z-index: 900;
            box-shadow: var(--shadow-md);
            transition: all var(--transition);
            opacity: 0;
            pointer-events: none;
            transform: translateY(10px);
        }
        .back-to-top.visible {
            opacity: 1;
            pointer-events: auto;
            transform: translateY(0);
        }
        .back-to-top:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }

        .bg-light-alt {
            background: var(--bg-light);
        }
        .text-accent {
            color: var(--accent);
        }

/* roulang page: category2 */
:root {
            --primary: #1a3c5e;
            --primary-light: #2c5f8a;
            --primary-dark: #0f2840;
            --accent: #d4a843;
            --accent-light: #e8c97a;
            --accent-dark: #b8922f;
            --surface: #f8f9fb;
            --surface-alt: #eef1f6;
            --text-main: #1e293b;
            --text-soft: #64748b;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-card: 0.875rem;
            --radius-btn: 0.625rem;
            --radius-tag: 999px;
            --shadow-card: 0 1px 4px rgba(0, 0, 0, 0.04), 0 6px 20px rgba(0, 0, 0, 0.05);
            --shadow-card-hover: 0 4px 16px rgba(0, 0, 0, 0.08), 0 12px 32px rgba(0, 0, 0, 0.06);
            --shadow-nav: 0 1px 0 rgba(0, 0, 0, 0.05), 0 4px 16px rgba(0, 0, 0, 0.04);
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.28s ease;
        }

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

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            line-height: 1.7;
            color: var(--text-main);
            background-color: #ffffff;
            min-height: 100vh;
        }

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

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

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

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

        .container {
            max-width: 1240px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            box-shadow: var(--shadow-nav);
            border-bottom: 1px solid var(--border-light);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 1.5rem;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .logo-link span.accent-dot {
            color: var(--accent);
            font-size: 1.45rem;
            line-height: 1;
        }

        .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding: 0;
            margin: 0;
        }

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

        .nav-links li {
            flex-shrink: 0;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 0.9rem;
            border-radius: var(--radius-btn);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-soft);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

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

        .nav-links a.active {
            color: var(--primary);
            background: #eef4fa;
            font-weight: 600;
        }

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }

        .search-box {
            position: relative;
            display: flex;
            align-items: center;
        }

        .search-box input {
            width: 180px;
            padding: 0.5rem 1rem 0.5rem 2.4rem;
            border: 1.5px solid var(--border);
            border-radius: var(--radius-btn);
            font-size: 0.875rem;
            background: var(--surface);
            transition: all var(--transition-fast);
            color: var(--text-main);
        }

        .search-box input:focus {
            border-color: var(--primary-light);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(26, 60, 94, 0.06);
            width: 220px;
        }

        .search-box .search-icon {
            position: absolute;
            left: 0.75rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 0.9rem;
            pointer-events: none;
        }

        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.55rem 1.3rem;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.875rem;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-btn);
            white-space: nowrap;
        }

        .btn-nav-cta:hover {
            background: var(--primary-light);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-main);
            padding: 0.4rem;
            border-radius: 6px;
            cursor: pointer;
            transition: background var(--transition-fast);
        }

        .mobile-menu-toggle:hover {
            background: var(--surface-alt);
        }

        /* Page Banner */
        .page-banner {
            position: relative;
            background: linear-gradient(160deg, #0f2840 0%, #1a3c5e 35%, #1e4d78 100%);
            padding: 5rem 0 4rem;
            overflow: hidden;
            color: #fff;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.16;
            z-index: 0;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, rgba(255, 255, 255, 0.06), transparent);
            z-index: 1;
        }

        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .page-banner .banner-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.13);
            border: 1px solid rgba(255, 255, 255, 0.22);
            color: #e8c97a;
            padding: 0.35rem 1.2rem;
            border-radius: var(--radius-tag);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 1.25rem;
            letter-spacing: 0.03em;
        }

        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin-bottom: 1rem;
        }

        .page-banner h1 span {
            color: var(--accent-light);
        }

        .page-banner .banner-desc {
            font-size: 1.1rem;
            max-width: 640px;
            margin: 0 auto 1.5rem;
            color: rgba(255, 255, 255, 0.82);
            line-height: 1.7;
        }

        .page-banner .banner-stats {
            display: flex;
            justify-content: center;
            gap: 2.5rem;
            flex-wrap: wrap;
            margin-top: 1.5rem;
        }

        .page-banner .banner-stat {
            text-align: center;
        }

        .page-banner .banner-stat .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1;
        }

        .page-banner .banner-stat .stat-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 0.35rem;
        }

        /* Section Styles */
        .section {
            padding: 4.5rem 0;
        }

        .section-alt {
            background: var(--surface);
        }

        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-header .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--accent-dark);
            background: #fdf6e6;
            padding: 0.3rem 1rem;
            border-radius: var(--radius-tag);
            margin-bottom: 0.75rem;
        }

        .section-header h2 {
            font-size: 1.85rem;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.01em;
            margin-bottom: 0.6rem;
        }

        .section-header p {
            color: var(--text-soft);
            font-size: 1rem;
            max-width: 560px;
            margin: 0 auto;
        }

        /* Card Grid */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 1.5rem;
        }

        .card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }

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

        .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--surface-alt);
        }

        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

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

        .card-body {
            padding: 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-body .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            background: #eef4fa;
            padding: 0.25rem 0.7rem;
            border-radius: var(--radius-tag);
            margin-bottom: 0.75rem;
            align-self: flex-start;
        }

        .card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }

        .card-body p {
            color: var(--text-soft);
            font-size: 0.9rem;
            line-height: 1.65;
            flex: 1;
        }

        .card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            margin-top: 1rem;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary);
            transition: color var(--transition-fast);
        }

        .card-body .card-link:hover {
            color: var(--primary-light);
        }

        /* Feature list */
        .feature-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.25rem;
            list-style: none;
            padding: 0;
        }

        .feature-list li {
            display: flex;
            gap: 0.9rem;
            padding: 1.1rem 1.3rem;
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            align-items: flex-start;
        }

        .feature-list li:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border);
        }

        .feature-list .feature-icon {
            flex-shrink: 0;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            background: #eef4fa;
            color: var(--primary);
        }

        .feature-list .feature-content h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.2rem;
        }

        .feature-list .feature-content p {
            font-size: 0.85rem;
            color: var(--text-soft);
            line-height: 1.55;
        }

        /* Table-like data display */
        .data-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            background: #fff;
        }

        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
            min-width: 700px;
        }

        .data-table thead th {
            background: #f0f4f8;
            padding: 0.9rem 1.2rem;
            text-align: left;
            font-weight: 700;
            color: var(--primary);
            font-size: 0.85rem;
            letter-spacing: 0.02em;
            white-space: nowrap;
            border-bottom: 2px solid var(--border);
        }

        .data-table tbody td {
            padding: 0.85rem 1.2rem;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-main);
            vertical-align: top;
        }

        .data-table tbody tr:hover {
            background: #fafcfd;
        }

        .data-table tbody tr:last-child td {
            border-bottom: none;
        }

        .badge-info {
            display: inline-block;
            padding: 0.2rem 0.6rem;
            border-radius: var(--radius-tag);
            font-size: 0.75rem;
            font-weight: 600;
            background: #e8f5e9;
            color: #2e7d32;
        }

        .badge-warn {
            display: inline-block;
            padding: 0.2rem 0.6rem;
            border-radius: var(--radius-tag);
            font-size: 0.75rem;
            font-weight: 600;
            background: #fff3e0;
            color: #e65100;
        }

        .badge-neutral {
            display: inline-block;
            padding: 0.2rem 0.6rem;
            border-radius: var(--radius-tag);
            font-size: 0.75rem;
            font-weight: 600;
            background: #f5f5f5;
            color: #616161;
        }

        /* Comparison cards */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            align-items: stretch;
        }

        .compare-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            padding: 2rem;
            transition: all var(--transition-smooth);
        }

        .compare-card:hover {
            box-shadow: var(--shadow-card-hover);
        }

        .compare-card.accent-border {
            border-left: 4px solid var(--accent);
        }

        .compare-card.primary-border {
            border-left: 4px solid var(--primary);
        }

        .compare-card h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
            color: var(--text-main);
        }

        .compare-card ul {
            list-style: none;
            padding: 0;
        }

        .compare-card ul li {
            padding: 0.45rem 0;
            font-size: 0.9rem;
            color: var(--text-soft);
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .compare-card ul li::before {
            content: '✓';
            color: var(--accent-dark);
            font-weight: 700;
            flex-shrink: 0;
        }

        .compare-card ul li:last-child {
            border-bottom: none;
        }

        /* FAQ */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }

        .faq-item:hover {
            border-color: var(--border);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 1.2rem 1.5rem;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-main);
            background: #fff;
            border: none;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            transition: background var(--transition-fast);
        }

        .faq-question:hover {
            background: #fafcfd;
        }

        .faq-question .faq-arrow {
            flex-shrink: 0;
            font-size: 0.8rem;
            transition: transform var(--transition-smooth);
            color: var(--text-muted);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 1.5rem;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 1.5rem 1.3rem;
        }

        .faq-answer p {
            color: var(--text-soft);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(150deg, #1a3c5e 0%, #1e4d78 50%, #0f2840 100%);
            color: #fff;
            text-align: center;
            padding: 4rem 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
        }

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

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 0.8rem;
            letter-spacing: -0.01em;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.78);
            font-size: 1.05rem;
            max-width: 520px;
            margin: 0 auto 2rem;
        }

        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 2.2rem;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border-radius: var(--radius-btn);
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 18px rgba(212, 168, 67, 0.4);
        }

        .btn-cta-large:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(212, 168, 67, 0.55);
        }

        /* Footer */
        .site-footer {
            background: #0f1e2e;
            color: #cbd5e1;
            padding: 3.5rem 0 0;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 2.5rem;
            padding-bottom: 2.5rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .logo-text-footer {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: inline-block;
            margin-bottom: 0.8rem;
        }

        .footer-brand .logo-text-footer span {
            color: var(--accent-light);
        }

        .footer-brand p {
            color: #94a3b8;
            line-height: 1.65;
            font-size: 0.85rem;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #e2e8f0;
            margin-bottom: 0.9rem;
            letter-spacing: 0.01em;
        }

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

        .footer-col ul li {
            margin-bottom: 0.5rem;
        }

        .footer-col ul li a {
            color: #94a3b8;
            transition: color var(--transition-fast);
            font-size: 0.85rem;
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.75rem;
            padding: 1.5rem 0;
            color: #64748b;
            font-size: 0.8rem;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .header-inner {
                gap: 1rem;
            }
            .nav-links a {
                padding: 0.4rem 0.65rem;
                font-size: 0.82rem;
            }
            .search-box input {
                width: 140px;
            }
            .search-box input:focus {
                width: 170px;
            }
            .page-banner h1 {
                font-size: 2.1rem;
            }
            .card-grid {
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            }
            .compare-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .section {
                padding: 3rem 0;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 56px;
                gap: 0.5rem;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 56px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 1rem;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
                border-bottom: 1px solid var(--border);
                z-index: 99;
                gap: 0.3rem;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                padding: 0.7rem 1rem;
                font-size: 0.9rem;
                justify-content: flex-start;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .search-box {
                display: none;
            }
            .btn-nav-cta {
                padding: 0.45rem 0.9rem;
                font-size: 0.8rem;
            }
            .page-banner {
                padding: 3.5rem 0 2.5rem;
            }
            .page-banner h1 {
                font-size: 1.7rem;
            }
            .page-banner .banner-desc {
                font-size: 0.95rem;
            }
            .page-banner .banner-stats {
                gap: 1.5rem;
            }
            .page-banner .banner-stat .stat-num {
                font-size: 1.5rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .feature-list {
                grid-template-columns: 1fr;
            }
            .compare-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .section {
                padding: 2.5rem 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .page-banner h1 {
                font-size: 1.45rem;
            }
            .page-banner .banner-stats {
                flex-direction: column;
                gap: 0.8rem;
            }
            .header-inner {
                gap: 0.4rem;
            }
            .btn-nav-cta {
                font-size: 0.75rem;
                padding: 0.4rem 0.7rem;
            }
            .logo-link {
                font-size: 1.1rem;
            }
            .data-table-wrap {
                font-size: 0.78rem;
            }
            .data-table thead th,
            .data-table tbody td {
                padding: 0.6rem 0.7rem;
            }
            .compare-card {
                padding: 1.3rem;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #1a3a5c;
            --color-primary-light: #3e6494;
            --color-accent: #c9952e;
            --color-accent-light: #d9a94e;
            --color-surface: #f8f9fb;
            --color-card: #ffffff;
            --color-muted: #6b7280;
            --color-border: #e5e7eb;
            --color-text: #1f2937;
            --color-text-weak: #4b5563;
            --radius-lg: 0.875rem;
            --radius-xl: 1.125rem;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 16px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 2px 8px rgba(0, 0, 0, 0.08), 0 8px 28px rgba(0, 0, 0, 0.06);
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            line-height: 1.7;
            color: #1f2937;
            background-color: #f8f9fb;
            margin: 0;
            min-height: 100vh;
        }

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

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

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

        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 640px) {
            .container-custom {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 1.5rem;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--color-primary);
            white-space: nowrap;
            flex-shrink: 0;
            letter-spacing: -0.01em;
        }
        .logo-link span {
            color: var(--color-accent);
        }
        .logo-icon {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--color-primary), #2d5a8a);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 0.25rem;
            align-items: center;
            flex-wrap: nowrap;
        }
        .nav-links li {
            flex-shrink: 0;
        }
        .nav-links a {
            display: inline-block;
            padding: 0.45rem 0.85rem;
            font-size: 0.925rem;
            font-weight: 500;
            color: #4b5563;
            border-radius: 0.5rem;
            transition: all var(--transition-base);
            white-space: nowrap;
            position: relative;
        }
        .nav-links a:hover {
            color: var(--color-primary);
            background: #f0f4f8;
        }
        .nav-links a.active {
            color: var(--color-primary);
            font-weight: 600;
            background: #eef3f9;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: #f3f4f6;
            border-radius: 2rem;
            padding: 0.4rem 0.9rem;
            gap: 0.4rem;
            border: 1px solid transparent;
            transition: all var(--transition-base);
        }
        .search-box:focus-within {
            border-color: var(--color-primary-light);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(26, 58, 92, 0.06);
        }
        .search-box input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.875rem;
            width: 140px;
            color: #1f2937;
        }
        .search-box input::placeholder {
            color: #9ca3af;
        }
        .search-icon {
            color: #9ca3af;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .btn-accent-sm {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.45rem 1.1rem;
            font-size: 0.875rem;
            font-weight: 600;
            color: #fff;
            background: var(--color-accent);
            border-radius: 2rem;
            transition: all var(--transition-base);
            white-space: nowrap;
            box-shadow: var(--shadow-btn, 0 2px 6px rgba(26, 58, 92, 0.15));
        }
        .btn-accent-sm:hover {
            background: #b88624;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(26, 58, 92, 0.22);
        }

        .mobile-menu-btn {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            z-index: 101;
            background: transparent;
            border: none;
        }
        .mobile-menu-btn span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        .mobile-menu-btn.open span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .mobile-menu-btn.open span:nth-child(2) {
            opacity: 0;
        }
        .mobile-menu-btn.open span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        @media (max-width: 1024px) {
            .nav-links {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 1rem;
                gap: 0.3rem;
                border-bottom: 1px solid var(--color-border);
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
                z-index: 99;
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-links a {
                display: block;
                padding: 0.7rem 1rem;
                font-size: 1rem;
                border-radius: 0.6rem;
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-links a.active {
                border-left: 3px solid var(--color-accent);
                border-radius: 0 0.6rem 0.6rem 0;
            }
            .mobile-menu-btn {
                display: flex;
            }
            .search-box {
                display: none;
            }
            .header-actions .btn-accent-sm {
                font-size: 0.8rem;
                padding: 0.4rem 0.8rem;
            }
        }
        @media (max-width: 520px) {
            .header-inner {
                height: 56px;
                gap: 0.75rem;
            }
            .logo-link {
                font-size: 1.15rem;
            }
            .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.8rem;
                border-radius: 6px;
            }
            .header-actions .btn-accent-sm {
                font-size: 0.75rem;
                padding: 0.35rem 0.7rem;
            }
            .nav-links {
                top: 56px;
            }
        }

        /* Hero */
        .hero-section {
            position: relative;
            background: url('assets/images/backpic/back-1.webp') center / cover no-repeat;
            min-height: 420px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 58, 92, 0.88) 0%, rgba(12, 26, 45, 0.82) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: 3rem 0;
            color: #fff;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #f9eed9;
            padding: 0.35rem 1rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 1rem;
            backdrop-filter: blur(4px);
        }
        .hero-title {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 0.75rem;
        }
        .hero-title span {
            color: #f2dcb3;
        }
        .hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 620px;
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }
        .btn-hero {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 1.8rem;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 2rem;
            transition: all var(--transition-base);
        }
        .btn-hero-primary {
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(201, 149, 46, 0.35);
        }
        .btn-hero-primary:hover {
            background: #b88624;
            transform: translateY(-2px);
            box-shadow: 0 6px 22px rgba(201, 149, 46, 0.45);
        }
        .btn-hero-outline {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
        }
        .btn-hero-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
        }

        @media (max-width: 768px) {
            .hero-section {
                min-height: 340px;
            }
            .hero-title {
                font-size: 1.9rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .btn-hero {
                padding: 0.6rem 1.3rem;
                font-size: 0.9rem;
            }
        }
        @media (max-width: 520px) {
            .hero-section {
                min-height: 300px;
            }
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-desc {
                font-size: 0.875rem;
            }
            .hero-content {
                padding: 2rem 0;
            }
            .btn-hero {
                padding: 0.5rem 1rem;
                font-size: 0.85rem;
            }
        }

        /* Section */
        .section {
            padding: 4rem 0;
        }
        .section-sm {
            padding: 3rem 0;
        }
        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-primary);
            text-align: center;
            margin-bottom: 0.5rem;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            text-align: center;
            color: var(--color-muted);
            font-size: 0.95rem;
            max-width: 560px;
            margin: 0 auto 2.5rem;
        }
        .section-divider {
            width: 48px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px;
            margin: 0 auto 2rem;
        }

        @media (max-width: 768px) {
            .section {
                padding: 2.5rem 0;
            }
            .section-sm {
                padding: 2rem 0;
            }
            .section-title {
                font-size: 1.45rem;
            }
            .section-subtitle {
                font-size: 0.875rem;
                margin-bottom: 1.8rem;
            }
        }

        /* Stat Cards */
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
        }
        .stat-card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
            text-align: center;
            transition: all var(--transition-base);
            border: 1px solid transparent;
        }
        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: #e5e7eb;
            transform: translateY(-3px);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            line-height: 1.1;
        }
        .stat-number span {
            color: var(--color-accent);
        }
        .stat-label {
            font-size: 0.875rem;
            color: var(--color-muted);
            margin-top: 0.35rem;
        }

        @media (max-width: 768px) {
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.75rem;
            }
            .stat-card {
                padding: 1.2rem;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 520px) {
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.6rem;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .stat-card {
                padding: 1rem 0.75rem;
            }
        }

        /* Service Cards */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .service-card {
            background: #fff;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            border: 1px solid transparent;
            display: flex;
            flex-direction: column;
        }
        .service-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: #e5e7eb;
            transform: translateY(-4px);
        }
        .service-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .service-card-body {
            padding: 1.4rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .service-card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 0.4rem;
        }
        .service-card-desc {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            line-height: 1.6;
            flex: 1;
        }
        .service-card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-accent);
            margin-top: 0.75rem;
            transition: color var(--transition-base);
        }
        .service-card-link:hover {
            color: #b88624;
        }

        @media (max-width: 768px) {
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
            .service-card-img {
                height: 160px;
            }
        }
        @media (max-width: 520px) {
            .service-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .service-card-img {
                height: 180px;
            }
        }

        /* Data Table */
        .data-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            padding: 0.5rem;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
            min-width: 700px;
        }
        .data-table thead th {
            background: #f0f4f8;
            padding: 0.85rem 1rem;
            text-align: left;
            font-weight: 600;
            color: var(--color-primary);
            font-size: 0.85rem;
            white-space: nowrap;
            border-bottom: 2px solid #dce4ef;
        }
        .data-table tbody td {
            padding: 0.75rem 1rem;
            border-bottom: 1px solid #f3f4f6;
            color: #374151;
        }
        .data-table tbody tr:hover {
            background: #fafbfc;
        }
        .data-table .trend-up {
            color: #16a34a;
            font-weight: 600;
        }
        .data-table .trend-down {
            color: #dc2626;
            font-weight: 600;
        }
        .data-table .trend-stable {
            color: #6b7280;
        }
        .badge-table {
            display: inline-block;
            padding: 0.2rem 0.6rem;
            border-radius: 1rem;
            font-size: 0.75rem;
            font-weight: 600;
        }
        .badge-hot {
            background: #fef2f2;
            color: #dc2626;
        }
        .badge-normal {
            background: #f0fdf4;
            color: #16a34a;
        }
        .badge-watch {
            background: #fffbeb;
            color: #d97706;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: #d1d5db;
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 1.1rem 1.3rem;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            cursor: pointer;
            background: transparent;
            border: none;
            transition: background var(--transition-base);
        }
        .faq-question:hover {
            background: #fafbfc;
        }
        .faq-icon {
            font-size: 1.2rem;
            color: var(--color-accent);
            transition: transform var(--transition-base);
            flex-shrink: 0;
            font-weight: 700;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 1.3rem;
            font-size: 0.9rem;
            color: var(--color-text-weak);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 1.3rem 1.1rem;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #1a3a5c 0%, #10243b 100%);
            border-radius: var(--radius-xl);
            padding: 3rem 2.5rem;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 160px;
            height: 160px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -30px;
            left: -30px;
            width: 120px;
            height: 120px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-title {
            font-size: 1.7rem;
            font-weight: 700;
            position: relative;
            z-index: 1;
            margin-bottom: 0.6rem;
        }
        .cta-desc {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.8);
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin: 0 auto 1.5rem;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.8rem 2rem;
            font-size: 1rem;
            font-weight: 600;
            background: var(--color-accent);
            color: #fff;
            border-radius: 2rem;
            position: relative;
            z-index: 1;
            transition: all var(--transition-base);
            box-shadow: 0 4px 18px rgba(201, 149, 46, 0.4);
        }
        .btn-cta:hover {
            background: #b88624;
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(201, 149, 46, 0.5);
        }

        @media (max-width: 520px) {
            .cta-section {
                padding: 2rem 1.25rem;
                border-radius: var(--radius-lg);
            }
            .cta-title {
                font-size: 1.3rem;
            }
            .cta-desc {
                font-size: 0.875rem;
            }
            .btn-cta {
                padding: 0.65rem 1.4rem;
                font-size: 0.9rem;
            }
        }

        /* Feature list */
        .feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            font-size: 0.95rem;
            color: #374151;
            line-height: 1.6;
        }
        .feature-list .feature-dot {
            width: 8px;
            height: 8px;
            background: var(--color-accent);
            border-radius: 50%;
            flex-shrink: 0;
            margin-top: 0.55rem;
        }

        /* Process Steps */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
            counter-reset: process;
        }
        .process-card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
            text-align: center;
            position: relative;
            transition: all var(--transition-base);
            border: 1px solid transparent;
        }
        .process-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: #e5e7eb;
            transform: translateY(-3px);
        }
        .process-num {
            width: 40px;
            height: 40px;
            background: var(--color-primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            margin: 0 auto 0.75rem;
        }
        .process-card-title {
            font-weight: 700;
            color: var(--color-primary);
            font-size: 1rem;
            margin-bottom: 0.3rem;
        }
        .process-card-desc {
            font-size: 0.85rem;
            color: var(--color-muted);
            line-height: 1.5;
        }

        @media (max-width: 768px) {
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.75rem;
            }
            .process-card {
                padding: 1.2rem;
            }
        }
        @media (max-width: 520px) {
            .process-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.6rem;
            }
        }

        /* Footer */
        .site-footer {
            background: #fff;
            border-top: 1px solid var(--color-border);
            padding: 3rem 0 1.5rem;
            margin-top: 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-brand .logo-text-footer {
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--color-primary);
        }
        .footer-brand .logo-text-footer span {
            color: var(--color-accent);
        }
        .footer-brand p {
            font-size: 0.875rem;
            color: var(--color-muted);
            margin-top: 0.6rem;
            line-height: 1.6;
        }
        .footer-col h4 {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--color-primary);
            margin-bottom: 0.75rem;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 0.45rem;
        }
        .footer-col ul li a {
            font-size: 0.875rem;
            color: var(--color-muted);
            transition: color var(--transition-base);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid #f3f4f6;
            padding-top: 1.25rem;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.5rem;
            font-size: 0.8rem;
            color: #9ca3af;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 0.3rem;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }
            .site-footer {
                padding: 2rem 0 1rem;
            }
        }

        /* Misc */
        .text-accent {
            color: var(--color-accent);
        }
        .bg-surface {
            background: var(--color-surface);
        }
        .bg-white-block {
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            padding: 2rem;
        }
        .two-col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            align-items: center;
        }
        @media (max-width: 768px) {
            .two-col {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .bg-white-block {
                padding: 1.4rem;
            }
        }
        .img-rounded {
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            width: 100%;
            height: auto;
        }

        .highlight-box {
            background: #fefdf8;
            border-left: 4px solid var(--color-accent);
            padding: 1.2rem 1.5rem;
            border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
            margin: 1rem 0;
        }
        .highlight-box p {
            font-size: 0.95rem;
            color: #4b5563;
            line-height: 1.7;
            margin: 0;
        }

/* roulang page: category3 */
:root {
            --primary: #1a3c5e;
            --primary-light: #1e5a8a;
            --primary-dark: #0f2840;
            --accent: #c8953b;
            --accent-light: #d4a84e;
            --accent-dark: #a67a2e;
            --bg-white: #ffffff;
            --bg-light: #f8f9fb;
            --bg-lighter: #f1f4f8;
            --bg-cream: #fdfaf5;
            --text-primary: #1a1f2b;
            --text-secondary: #4a5568;
            --text-muted: #718096;
            --text-light: #a0aec0;
            --border-light: #e2e8f0;
            --border-medium: #cbd5e0;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 10px 32px rgba(0, 0, 0, 0.10), 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 18px 48px rgba(0, 0, 0, 0.12), 0 6px 18px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-heading: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', 'Segoe UI', sans-serif;
            --max-width: 1260px;
            --nav-height: 68px;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.68;
            color: var(--text-primary);
            background-color: var(--bg-white);
            min-height: 100vh;
            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 {
            font-family: inherit;
        }

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

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
        }

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

        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
        }

        .logo-text {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

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

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

        .nav-links li a {
            display: inline-block;
            padding: 8px 15px;
            border-radius: 20px;
            font-size: 0.93rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

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

        .nav-links li a.active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(26, 60, 94, 0.25);
        }

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

        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-lighter);
            border-radius: 22px;
            padding: 7px 14px;
            gap: 8px;
            border: 1px solid transparent;
            transition: all var(--transition-fast);
        }

        .search-box:focus-within {
            border-color: var(--primary-light);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(26, 60, 94, 0.06);
        }

        .search-box input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.9rem;
            color: var(--text-primary);
            width: 140px;
        }

        .search-box input::placeholder {
            color: var(--text-muted);
        }

        .search-box .search-icon {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .btn-nav-cta {
            background: var(--accent);
            color: #fff;
            border: none;
            padding: 9px 20px;
            border-radius: 22px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(200, 149, 59, 0.25);
        }

        .btn-nav-cta:hover {
            background: var(--accent-dark);
            box-shadow: 0 4px 14px rgba(200, 149, 59, 0.35);
            transform: translateY(-1px);
        }

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

        /* Page Banner */
        .page-banner {
            position: relative;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            min-height: 380px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 40, 64, 0.88) 0%, rgba(26, 60, 94, 0.78) 40%, rgba(30, 90, 138, 0.65) 100%);
            z-index: 1;
        }

        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            color: #fff;
            padding: 40px 0;
        }

        .banner-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .banner-breadcrumb a {
            color: rgba(255, 255, 255, 0.9);
            transition: color var(--transition-fast);
        }

        .banner-breadcrumb a:hover {
            color: var(--accent-light);
        }

        .banner-breadcrumb .separator {
            color: rgba(255, 255, 255, 0.5);
        }

        .page-banner h1 {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 700;
            margin: 0 0 14px;
            letter-spacing: -0.02em;
            line-height: 1.25;
        }

        .page-banner .banner-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            line-height: 1.7;
        }

        .banner-stats {
            display: flex;
            gap: 28px;
            margin-top: 24px;
            flex-wrap: wrap;
        }

        .banner-stat-item {
            display: flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(6px);
            border-radius: var(--radius-md);
            padding: 12px 18px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .banner-stat-item .stat-num {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--accent-light);
            font-family: var(--font-heading);
        }

        .banner-stat-item .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.85);
        }

        /* Section Styles */
        .section {
            padding: 60px 0;
        }

        .section-alt {
            background: var(--bg-light);
        }

        .section-cream {
            background: var(--bg-cream);
        }

        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }

        .section-header .section-tag {
            display: inline-block;
            background: rgba(200, 149, 59, 0.12);
            color: var(--accent-dark);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 5px 14px;
            border-radius: 16px;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }

        .section-header h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 10px;
            letter-spacing: -0.01em;
        }

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

        /* Cards */
        .card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
        }

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

        .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--bg-lighter);
        }

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

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

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

        .card-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 12px;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        .card-tag.hot {
            background: #fff0f0;
            color: #c0392b;
        }

        .card-tag.recommend {
            background: #f0f7ff;
            color: #1a5e8a;
        }

        .card-tag.new {
            background: #f0fdf4;
            color: #1a7a3a;
        }

        .card-body h3 {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text-primary);
            line-height: 1.4;
        }

        .card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* Feature list */
        .feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border-light);
        }

        .feature-list li:last-child {
            border-bottom: none;
        }

        .feature-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.1rem;
        }

        .feature-icon.blue {
            background: #e8f1fa;
            color: var(--primary-light);
        }

        .feature-icon.gold {
            background: #fdf3e0;
            color: var(--accent);
        }

        .feature-icon.green {
            background: #e8f8ef;
            color: #1a7a3a;
        }

        .feature-text h4 {
            margin: 0 0 4px;
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-primary);
        }

        .feature-text p {
            margin: 0;
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.55;
        }

        /* Data table */
        .data-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
        }

        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
            min-width: 700px;
        }

        .data-table thead {
            background: var(--primary);
            color: #fff;
        }

        .data-table thead th {
            padding: 14px 16px;
            text-align: left;
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .data-table tbody td {
            padding: 13px 16px;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-secondary);
        }

        .data-table tbody tr {
            transition: background var(--transition-fast);
        }

        .data-table tbody tr:hover {
            background: var(--bg-lighter);
        }

        .data-table tbody tr:last-child td {
            border-bottom: none;
        }

        .odds-highlight {
            display: inline-block;
            background: #fdf3e0;
            color: var(--accent-dark);
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 10px;
            font-size: 0.9rem;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-sm);
        }

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

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 22px;
            text-align: left;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            font-family: var(--font-body);
            transition: color var(--transition-fast);
        }

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

        .faq-question .faq-icon {
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 22px 20px;
        }

        .faq-answer p {
            margin: 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 40%, var(--primary-light) 100%);
            color: #fff;
            text-align: center;
            padding: 56px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 1;
        }

        .cta-content h2 {
            font-family: var(--font-heading);
            font-size: 1.9rem;
            font-weight: 700;
            margin: 0 0 12px;
        }

        .cta-content p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            margin: 0 0 28px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta-lg {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 36px;
            border-radius: 28px;
            border: none;
            transition: all var(--transition-normal);
            box-shadow: 0 6px 20px rgba(200, 149, 59, 0.4);
            letter-spacing: 0.02em;
        }

        .btn-cta-lg:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(200, 149, 59, 0.5);
        }

        /* Tip cards */
        .tip-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .tip-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--accent);
            border-radius: 0 4px 4px 0;
        }

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

        .tip-card .tip-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: rgba(200, 149, 59, 0.2);
            font-family: var(--font-heading);
            line-height: 1;
            margin-bottom: 8px;
        }

        .tip-card h4 {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text-primary);
        }

        .tip-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* Footer */
        .site-footer {
            background: #1a1f2b;
            color: #cbd5e0;
            padding: 48px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }

        .footer-brand .logo-text-footer {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: inline-block;
            margin-bottom: 12px;
        }

        .footer-brand .logo-text-footer span {
            color: var(--accent-light);
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: #a0aec0;
            line-height: 1.7;
            margin: 0;
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
        }

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

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

        .footer-col ul li a {
            color: #a0aec0;
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.82rem;
            color: #718096;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .nav-links li a {
                padding: 6px 11px;
                font-size: 0.84rem;
            }
            .search-box input {
                width: 100px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-lg);
                z-index: 99;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li a {
                display: block;
                padding: 10px 16px;
                border-radius: var(--radius-sm);
                font-size: 0.95rem;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-actions .search-box {
                display: none;
            }
            .btn-nav-cta {
                padding: 7px 15px;
                font-size: 0.82rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .page-banner {
                min-height: 280px;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .banner-stats {
                gap: 12px;
            }
            .banner-stat-item {
                padding: 10px 14px;
            }
            .banner-stat-item .stat-num {
                font-size: 1.3rem;
            }
            .section {
                padding: 40px 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .data-table {
                min-width: 560px;
                font-size: 0.8rem;
            }
            .cta-content h2 {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .page-banner {
                min-height: 240px;
            }
            .page-banner h1 {
                font-size: 1.35rem;
            }
            .page-banner .banner-desc {
                font-size: 0.9rem;
            }
            .banner-stats {
                flex-direction: column;
                gap: 8px;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .card-body {
                padding: 14px 16px 18px;
            }
            .card-body h3 {
                font-size: 1rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .logo-text {
                font-size: 1.1rem;
            }
            .btn-nav-cta {
                font-size: 0.78rem;
                padding: 6px 12px;
            }
        }

/* roulang page: category1 */
:root {
            --color-brand-600: #1a365d;
            --color-brand-700: #152d4f;
            --color-brand-800: #0f2340;
            --color-accent-500: #c98a2e;
            --color-accent-600: #b5771f;
            --color-surface: #f8f9fb;
            --color-card: #ffffff;
            --color-muted: #6b7280;
            --color-border: #e5e7eb;
            --color-text: #1f2937;
            --color-text-weak: #4b5563;
            --radius-xl: 0.75rem;
            --radius-2xl: 1rem;
            --radius-3xl: 1.25rem;
            --shadow-card: 0 1px 3px 0 rgba(0, 0, 0, 0.06), 0 4px 16px 0 rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 2px 8px 0 rgba(0, 0, 0, 0.09), 0 8px 28px 0 rgba(0, 0, 0, 0.06);
            --shadow-nav: 0 1px 3px 0 rgba(0, 0, 0, 0.05), 0 0 0 1px rgba(0, 0, 0, 0.03);
            --transition-base: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            line-height: 1.7;
            color: #1f2937;
            background-color: #f8f9fb;
            min-height: 100vh;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-base);
        }
        a:focus-visible {
            outline: 2px solid var(--color-accent-500);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            transition: all var(--transition-base);
        }
        button:focus-visible {
            outline: 2px solid var(--color-accent-500);
            outline-offset: 2px;
            border-radius: 6px;
        }
        input {
            font-family: inherit;
        }
        input:focus-visible {
            outline: 2px solid var(--color-accent-500);
            outline-offset: 2px;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }
        @media (min-width: 1024px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* Header & Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: var(--shadow-nav);
            border-bottom: 1px solid var(--color-border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 60px;
            gap: 1.25rem;
        }
        @media (min-width: 1024px) {
            .header-inner {
                height: 66px;
                gap: 2rem;
            }
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            flex-shrink: 0;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--color-brand-600);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .logo-link span {
            color: var(--color-accent-500);
        }
        .logo-link:hover {
            color: var(--color-brand-700);
        }
        .logo-link:hover span {
            color: var(--color-accent-600);
        }

        .nav-links {
            display: none;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 0.25rem;
            align-items: center;
        }
        @media (min-width: 1024px) {
            .nav-links {
                display: flex;
                flex-wrap: wrap;
                gap: 0.15rem;
            }
        }
        .nav-links li a {
            display: inline-block;
            padding: 0.45rem 0.85rem;
            border-radius: 0.5rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: #4b5563;
            white-space: nowrap;
            transition: all var(--transition-base);
            position: relative;
        }
        .nav-links li a:hover {
            color: var(--color-brand-600);
            background: #f0f4f8;
        }
        .nav-links li a.active {
            color: var(--color-brand-600);
            background: #eef3f9;
            font-weight: 600;
        }
        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-accent-500);
            border-radius: 3px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
        }
        .search-box-header {
            display: none;
            position: relative;
        }
        @media (min-width: 768px) {
            .search-box-header {
                display: block;
            }
        }
        .search-box-header input {
            width: 180px;
            padding: 0.5rem 0.9rem 0.5rem 2.2rem;
            border: 1px solid var(--color-border);
            border-radius: 2rem;
            font-size: 0.85rem;
            background: #f9fafb;
            color: #374151;
            transition: all var(--transition-base);
        }
        @media (min-width: 1024px) {
            .search-box-header input {
                width: 210px;
            }
        }
        .search-box-header input:focus {
            border-color: var(--color-accent-400);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(201, 138, 46, 0.08);
            width: 240px;
        }
        .search-box-header .search-icon {
            position: absolute;
            left: 0.75rem;
            top: 50%;
            transform: translateY(-50%);
            color: #9ca3af;
            font-size: 0.9rem;
            pointer-events: none;
        }
        .btn-header {
            padding: 0.5rem 1.1rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            font-weight: 600;
            background: var(--color-brand-600);
            color: #fff;
            white-space: nowrap;
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-base);
        }
        .btn-header:hover {
            background: var(--color-brand-700);
            box-shadow: 0 4px 14px 0 rgba(26, 54, 93, 0.28);
            transform: translateY(-1px);
        }
        .btn-header:active {
            transform: translateY(0);
            box-shadow: var(--shadow-btn);
        }

        .mobile-menu-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 0.5rem;
            border: 1px solid var(--color-border);
            background: #fff;
            color: #374151;
            font-size: 1.2rem;
            transition: all var(--transition-base);
        }
        .mobile-menu-toggle:hover {
            background: #f9fafb;
            border-color: #cbd5e1;
        }
        @media (min-width: 1024px) {
            .mobile-menu-toggle {
                display: none;
            }
        }

        /* Mobile nav panel */
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            bottom: 0;
            background: #fff;
            z-index: 99;
            padding: 1.25rem;
            overflow-y: auto;
            flex-direction: column;
            gap: 0.3rem;
        }
        .mobile-nav-panel.open {
            display: flex;
        }
        @media (min-width: 1024px) {
            .mobile-nav-panel.open {
                display: none;
            }
        }
        .mobile-nav-panel a {
            display: block;
            padding: 0.75rem 1rem;
            border-radius: 0.6rem;
            font-size: 1rem;
            font-weight: 500;
            color: #374151;
            transition: all var(--transition-base);
        }
        .mobile-nav-panel a:hover,
        .mobile-nav-panel a.active {
            background: #eef3f9;
            color: var(--color-brand-600);
            font-weight: 600;
        }
        .mobile-nav-panel .mobile-search {
            margin-bottom: 0.5rem;
        }
        .mobile-nav-panel .mobile-search input {
            width: 100%;
            padding: 0.65rem 1rem;
            border: 1px solid var(--color-border);
            border-radius: 0.6rem;
            font-size: 0.95rem;
            background: #f9fafb;
        }

        /* Page Banner */
        .page-banner {
            position: relative;
            background: linear-gradient(135deg, #1a365d 0%, #0f2340 40%, #152d4f 100%);
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            padding: 3.5rem 0 3rem;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 35, 64, 0.82) 0%, rgba(26, 54, 93, 0.88) 100%);
            z-index: 1;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #fff;
        }
        .page-banner .banner-tag {
            display: inline-block;
            padding: 0.3rem 1rem;
            border-radius: 2rem;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            margin-bottom: 1rem;
            backdrop-filter: blur(4px);
        }
        .page-banner h1 {
            font-size: 2rem;
            font-weight: 700;
            margin: 0 0 0.75rem;
            letter-spacing: 0.03em;
            line-height: 1.25;
        }
        @media (min-width: 768px) {
            .page-banner h1 {
                font-size: 2.6rem;
            }
        }
        @media (min-width: 1024px) {
            .page-banner h1 {
                font-size: 3rem;
            }
        }
        .page-banner .banner-desc {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }
        @media (min-width: 768px) {
            .page-banner .banner-desc {
                font-size: 1.1rem;
            }
        }

        /* Section */
        .section {
            padding: 3.5rem 0;
        }
        @media (min-width: 768px) {
            .section {
                padding: 4.5rem 0;
            }
        }
        @media (min-width: 1024px) {
            .section {
                padding: 5.5rem 0;
            }
        }
        .section-sm {
            padding: 2.5rem 0;
        }
        @media (min-width: 768px) {
            .section-sm {
                padding: 3rem 0;
            }
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            color: var(--color-accent-600);
            margin-bottom: 0.5rem;
        }
        .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: #1f2937;
            margin: 0 0 0.75rem;
            letter-spacing: 0.02em;
            line-height: 1.3;
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 2rem;
            }
        }
        @media (min-width: 1024px) {
            .section-title {
                font-size: 2.25rem;
            }
        }
        .section-desc {
            font-size: 1rem;
            color: #6b7280;
            max-width: 680px;
            line-height: 1.75;
        }

        /* Cards */
        .card {
            background: #fff;
            border-radius: var(--radius-2xl);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            transition: all var(--transition-smooth);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: #d1d5db;
        }
        .card-body {
            padding: 1.5rem;
        }
        @media (min-width: 768px) {
            .card-body {
                padding: 1.75rem;
            }
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
        }
        .card-tag {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            border-radius: 2rem;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            background: #eef3f9;
            color: var(--color-brand-600);
            margin-bottom: 0.5rem;
        }
        .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: #1f2937;
            margin: 0 0 0.4rem;
            line-height: 1.4;
        }
        .card-text {
            font-size: 0.9rem;
            color: #6b7280;
            line-height: 1.65;
            margin: 0;
        }

        /* Knowledge cards */
        .knowledge-card {
            background: #fff;
            border-radius: var(--radius-2xl);
            padding: 1.75rem;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            text-align: center;
        }
        .knowledge-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: #cbd5e1;
        }
        .knowledge-icon {
            width: 52px;
            height: 52px;
            border-radius: 1rem;
            background: linear-gradient(135deg, #eef3f9 0%, #dce6f0 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin: 0 auto 1rem;
            color: var(--color-brand-600);
            transition: all var(--transition-base);
        }
        .knowledge-card:hover .knowledge-icon {
            background: linear-gradient(135deg, var(--color-brand-600) 0%, var(--color-brand-700) 100%);
            color: #fff;
            transform: scale(1.05);
        }
        .knowledge-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #1f2937;
            margin: 0 0 0.5rem;
        }
        .knowledge-card p {
            font-size: 0.88rem;
            color: #6b7280;
            line-height: 1.6;
            margin: 0;
        }

        /* Article list */
        .article-row {
            display: flex;
            gap: 1.25rem;
            padding: 1.25rem 0;
            border-bottom: 1px solid var(--color-border);
            transition: all var(--transition-base);
            cursor: pointer;
            align-items: flex-start;
        }
        .article-row:last-child {
            border-bottom: none;
        }
        .article-row:hover {
            background: #fafbfc;
            margin: 0 -0.75rem;
            padding-left: 0.75rem;
            padding-right: 0.75rem;
            border-radius: 0.75rem;
            border-bottom-color: transparent;
        }
        .article-row-img {
            width: 100px;
            height: 70px;
            border-radius: 0.6rem;
            object-fit: cover;
            flex-shrink: 0;
            background: #e5e7eb;
        }
        @media (min-width: 768px) {
            .article-row-img {
                width: 140px;
                height: 90px;
            }
        }
        .article-row-body {
            flex: 1;
            min-width: 0;
        }
        .article-row-body .article-date {
            font-size: 0.78rem;
            color: #9ca3af;
            margin-bottom: 0.2rem;
        }
        .article-row-body h5 {
            font-size: 1rem;
            font-weight: 600;
            color: #1f2937;
            margin: 0 0 0.3rem;
            line-height: 1.4;
        }
        .article-row-body p {
            font-size: 0.85rem;
            color: #6b7280;
            margin: 0 0 0.4rem;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .read-more {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-accent-600);
            transition: all var(--transition-base);
        }
        .read-more:hover {
            color: var(--color-accent-500);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        /* Stats */
        .stat-block {
            text-align: center;
            padding: 1.5rem;
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-brand-600);
            letter-spacing: 0.02em;
            line-height: 1;
        }
        @media (min-width: 768px) {
            .stat-number {
                font-size: 2.8rem;
            }
        }
        .stat-label {
            font-size: 0.9rem;
            color: #6b7280;
            margin-top: 0.4rem;
            font-weight: 500;
        }
        .stat-unit {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-accent-500);
            margin-left: 0.15rem;
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-xl);
            margin-bottom: 0.75rem;
            background: #fff;
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: #cbd5e1;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 1.1rem 1.25rem;
            font-size: 1rem;
            font-weight: 600;
            color: #1f2937;
            background: transparent;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
        }
        .faq-question:hover {
            color: var(--color-brand-600);
            background: #fafbfc;
        }
        .faq-arrow {
            flex-shrink: 0;
            font-size: 0.8rem;
            color: #9ca3af;
            transition: transform var(--transition-smooth);
            width: 22px;
            height: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: #f3f4f6;
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            background: var(--color-brand-600);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 600px;
        }
        .faq-answer-inner {
            padding: 0 1.25rem 1.25rem;
            font-size: 0.9rem;
            color: #4b5563;
            line-height: 1.75;
        }

        /* CTA */
        .cta-block {
            background: linear-gradient(135deg, var(--color-brand-600) 0%, #0f2340 100%);
            border-radius: var(--radius-3xl);
            padding: 2.5rem 1.5rem;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        @media (min-width: 768px) {
            .cta-block {
                padding: 3.5rem 2rem;
            }
        }
        .cta-block::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }
        .cta-block h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin: 0 0 0.75rem;
            position: relative;
            z-index: 1;
        }
        @media (min-width: 768px) {
            .cta-block h3 {
                font-size: 1.8rem;
            }
        }
        .cta-block p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 500px;
            margin: 0 auto 1.5rem;
            position: relative;
            z-index: 1;
            line-height: 1.6;
        }
        .btn-cta {
            display: inline-block;
            padding: 0.75rem 2rem;
            border-radius: 2rem;
            font-size: 1rem;
            font-weight: 700;
            background: #fff;
            color: var(--color-brand-700);
            position: relative;
            z-index: 1;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 18px rgba(0, 0, 0, 0.2);
        }
        .btn-cta:hover {
            background: #f0f4f8;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.3);
        }
        .btn-cta:active {
            transform: translateY(0);
        }

        /* Footer */
        .site-footer {
            background: #0f2340;
            color: #cbd5e1;
            padding: 3rem 0 1.5rem;
            font-size: 0.9rem;
        }
        @media (min-width: 768px) {
            .site-footer {
                padding: 4rem 0 2rem;
            }
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr 1fr;
                gap: 2.5rem;
            }
        }
        .footer-brand .logo-text-footer {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.02em;
        }
        .footer-brand .logo-text-footer span {
            color: #d9a24e;
        }
        .footer-brand p {
            margin: 0.75rem 0 0;
            color: #94a3b8;
            font-size: 0.85rem;
            line-height: 1.7;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 0.75rem;
            letter-spacing: 0.03em;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 0.45rem;
        }
        .footer-col ul li a {
            color: #94a3b8;
            font-size: 0.85rem;
            transition: color var(--transition-base);
        }
        .footer-col ul li a:hover {
            color: #d9a24e;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.25rem;
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: space-between;
            font-size: 0.8rem;
            color: #64748b;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
            align-items: center;
            font-size: 0.85rem;
            color: #6b7280;
            padding: 0.75rem 0;
        }
        .breadcrumb a {
            color: var(--color-brand-600);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .breadcrumb .sep {
            color: #cbd5e1;
            font-size: 0.7rem;
        }
        .breadcrumb .current {
            color: #374151;
            font-weight: 600;
        }

        /* Responsive overrides */
        @media (max-width: 767px) {
            .hide-mobile {
                display: none !important;
            }
            .page-banner {
                padding: 2.5rem 0 2rem;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .section {
                padding: 2.5rem 0;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .card-body {
                padding: 1.25rem;
            }
        }
        @media (max-width: 1023px) and (min-width: 768px) {
            .page-banner h1 {
                font-size: 2.2rem;
            }
            .section {
                padding: 3.5rem 0;
            }
        }

/* roulang page: category5 */
:root {
            --brand-600: #1a365d;
            --brand-700: #142c4d;
            --brand-800: #0f2138;
            --gold-500: #c49a35;
            --gold-400: #d4a745;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5e;
            --text-muted: #7a7a8e;
            --bg-page: #f8f9fb;
            --bg-white: #ffffff;
            --border-soft: #e8eaef;
            --border-light: #f0f1f5;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.13);
            --transition-fast: 0.18s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-page);
            min-height: 100vh;
        }

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

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

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 1.75rem;
                padding-right: 1.75rem;
            }
        }
        @media (min-width: 1024px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* ========== HEADER & NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            box-shadow: var(--shadow-xs);
            border-bottom: 1px solid var(--border-soft);
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 62px;
            gap: 1rem;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--brand-600);
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--gold-500);
        }
        .logo-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--gold-500);
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 0.15rem;
            flex-wrap: nowrap;
        }
        .nav-links li a {
            display: inline-block;
            padding: 0.45rem 0.85rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            transition: all var(--transition-fast);
            position: relative;
        }
        .nav-links li a:hover {
            color: var(--brand-600);
            background: #f0f4f8;
        }
        .nav-links li a.active {
            color: var(--brand-600);
            font-weight: 600;
            background: #eef3f9;
        }
        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            border-radius: 2px;
            background: var(--gold-500);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
        }
        .search-trigger {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            border: 1px solid var(--border-soft);
            background: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 0.95rem;
            transition: all var(--transition-fast);
        }
        .search-trigger:hover {
            border-color: var(--brand-600);
            color: var(--brand-600);
            background: #f8fafc;
        }
        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.5rem 1.1rem;
            font-size: 0.88rem;
            font-weight: 600;
            border-radius: 2rem;
            background: var(--brand-600);
            color: #fff;
            border: none;
            white-space: nowrap;
            transition: all var(--transition-base);
            box-shadow: 0 2px 8px rgba(26, 54, 93, 0.2);
        }
        .btn-nav-cta:hover {
            background: var(--brand-700);
            box-shadow: 0 4px 14px rgba(26, 54, 93, 0.3);
            transform: translateY(-1px);
        }

        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid var(--border-soft);
            background: #fff;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--text-secondary);
            flex-shrink: 0;
        }

        @media (max-width: 1024px) {
            .nav-links {
                gap: 0;
            }
            .nav-links li a {
                padding: 0.4rem 0.6rem;
                font-size: 0.82rem;
            }
            .btn-nav-cta {
                padding: 0.45rem 0.85rem;
                font-size: 0.8rem;
            }
            .logo-text {
                font-size: 1.2rem;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 62px;
                left: 0;
                right: 0;
                flex-direction: column;
                background: #fff;
                border-bottom: 2px solid var(--border-soft);
                box-shadow: var(--shadow-md);
                padding: 0.6rem 1rem;
                gap: 0.2rem;
                z-index: 999;
            }
            .nav-links.show {
                display: flex;
            }
            .nav-links li a {
                padding: 0.7rem 1rem;
                width: 100%;
                border-radius: var(--radius-sm);
                font-size: 0.9rem;
            }
            .mobile-toggle {
                display: flex;
            }
            .header-actions .btn-nav-cta {
                display: none;
            }
            .header-inner {
                height: 56px;
            }
        }
        @media (max-width: 520px) {
            .logo-text {
                font-size: 1.1rem;
            }
            .search-trigger {
                width: 34px;
                height: 34px;
                font-size: 0.85rem;
            }
            .mobile-toggle {
                width: 36px;
                height: 36px;
            }
        }

        /* ========== HERO ========== */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, #0f2138 0%, #1a365d 40%, #142c4d 100%);
            color: #fff;
            padding: 5rem 0 4.5rem;
            overflow: hidden;
            isolation: isolate;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 0;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, rgba(248, 249, 251, 0.7), transparent);
            z-index: 1;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-block;
            padding: 0.35rem 1rem;
            border-radius: 2rem;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.22);
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            color: #e8d5a3;
            margin-bottom: 1.2rem;
        }
        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin: 0 0 1rem;
        }
        .page-hero h1 span {
            color: #d4a745;
        }
        .page-hero .hero-desc {
            font-size: 1.15rem;
            color: #c8d6e5;
            max-width: 620px;
            line-height: 1.7;
            margin-bottom: 1.8rem;
        }
        .hero-stats-row {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
        }
        .hero-stat-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.95rem;
            color: #d0dce8;
        }
        .hero-stat-item .stat-num {
            font-size: 1.5rem;
            font-weight: 700;
            color: #d4a745;
            line-height: 1;
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 3.5rem 0 3rem;
            }
            .page-hero h1 {
                font-size: 1.9rem;
            }
            .page-hero .hero-desc {
                font-size: 1rem;
            }
            .hero-stats-row {
                gap: 1.2rem;
            }
            .hero-stat-item .stat-num {
                font-size: 1.25rem;
            }
        }
        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.55rem;
            }
            .hero-stats-row {
                gap: 0.8rem;
                flex-direction: column;
            }
        }

        /* ========== SECTION COMMONS ========== */
        .section {
            padding: 4rem 0;
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--brand-700);
            text-align: center;
            margin-bottom: 0.5rem;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            text-align: center;
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 2.5rem;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }
        @media (max-width: 768px) {
            .section {
                padding: 3rem 0;
            }
            .section-title {
                font-size: 1.45rem;
            }
        }

        /* ========== CARDS ========== */
        .card-skill {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 1.8rem 1.5rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card-skill:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: #d0d8e4;
        }
        .card-skill .skill-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 1rem;
            flex-shrink: 0;
        }
        .card-skill h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0 0 0.5rem;
            color: var(--brand-700);
        }
        .card-skill p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
            flex-grow: 1;
            line-height: 1.65;
        }
        .card-skill .skill-tag {
            display: inline-block;
            margin-top: 0.8rem;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--gold-500);
            align-self: flex-start;
        }

        .card-image-tip {
            background: #fff;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            height: 100%;
        }
        .card-image-tip:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .card-image-tip .tip-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }
        .card-image-tip .tip-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .card-image-tip:hover .tip-img-wrap img {
            transform: scale(1.04);
        }
        .card-image-tip .tip-body {
            padding: 1.2rem 1.3rem 1.3rem;
        }
        .card-image-tip .tip-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin: 0 0 0.4rem;
            color: var(--brand-700);
        }
        .card-image-tip .tip-body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== PROCESS STEPS ========== */
        .process-step {
            display: flex;
            gap: 1.2rem;
            align-items: flex-start;
            padding: 1.3rem 1.5rem;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
        }
        .process-step:hover {
            box-shadow: var(--shadow-md);
            border-color: #d0d8e4;
        }
        .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--brand-600);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .process-step .step-content h4 {
            font-size: 1rem;
            font-weight: 700;
            margin: 0 0 0.3rem;
            color: var(--brand-700);
        }
        .process-step .step-content p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== WARNING CARDS ========== */
        .warning-card {
            background: #fffdf7;
            border: 1px solid #f0e4c0;
            border-left: 4px solid #d4a745;
            border-radius: var(--radius-lg);
            padding: 1.3rem 1.5rem;
            transition: all var(--transition-base);
            height: 100%;
        }
        .warning-card:hover {
            box-shadow: var(--shadow-md);
            background: #fffef9;
        }
        .warning-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #8f6d1e;
            margin: 0 0 0.5rem;
        }
        .warning-card p {
            font-size: 0.88rem;
            color: #6b5e3a;
            margin: 0;
            line-height: 1.6;
        }

        /* ========== FAQ ========== */
        .faq-item {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 1.4rem 1.6rem;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
            border-color: #d0d8e4;
        }
        .faq-item .faq-q {
            font-weight: 700;
            font-size: 1rem;
            color: var(--brand-700);
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            margin: 0;
        }
        .faq-item .faq-q .faq-icon {
            color: var(--gold-500);
            flex-shrink: 0;
            margin-top: 0.15rem;
        }
        .faq-item .faq-a {
            margin-top: 0.7rem;
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            padding-left: 1.7rem;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, #1a365d 0%, #0f2138 100%);
            color: #fff;
            text-align: center;
            padding: 4rem 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
        }
        .cta-section p {
            color: #c8d6e5;
            max-width: 500px;
            margin: 0 auto 1.5rem;
            font-size: 0.95rem;
        }
        .btn-cta-lg {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 2.2rem;
            font-size: 1rem;
            font-weight: 700;
            border-radius: 2.5rem;
            background: #d4a745;
            color: #1a1a2e;
            border: none;
            transition: all var(--transition-base);
            box-shadow: 0 4px 18px rgba(212, 167, 69, 0.35);
            white-space: nowrap;
        }
        .btn-cta-lg:hover {
            background: #e0b955;
            box-shadow: 0 6px 24px rgba(212, 167, 69, 0.5);
            transform: translateY(-2px);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0f1a28;
            color: #c0c8d4;
            padding: 3.5rem 0 1.8rem;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-brand .logo-text-footer {
            font-size: 1.25rem;
            font-weight: 700;
            color: #e8eaef;
            display: inline-block;
            margin-bottom: 0.6rem;
        }
        .footer-brand .logo-text-footer span {
            color: #d4a745;
        }
        .footer-brand p {
            color: #8a94a3;
            font-size: 0.85rem;
            line-height: 1.6;
            margin: 0;
        }
        .footer-col h4 {
            color: #e8eaef;
            font-size: 0.95rem;
            font-weight: 700;
            margin: 0 0 0.8rem;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 0.45rem;
        }
        .footer-col ul li a {
            color: #8a94a3;
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: #d4a745;
        }
        .footer-bottom {
            border-top: 1px solid #1e2d3d;
            padding-top: 1.2rem;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.6rem;
            font-size: 0.8rem;
            color: #6b7585;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category6 */
:root {
            --color-brand-700: #1a3658;
            --color-brand-800: #0f2440;
            --color-brand-900: #0a1a30;
            --color-gold-500: #c2943a;
            --color-gold-400: #d4a853;
            --color-accent: #e8c97a;
            --color-darkbg: #0d1b2a;
            --color-cardbg: #112233;
            --color-softbg: #f8f9fb;
            --color-text: #1e293b;
            --color-text-light: #64748b;
            --color-text-lighter: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --radius-xl: 0.875rem;
            --radius-2xl: 1.125rem;
            --radius-3xl: 1.5rem;
            --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.06), 0 1px 4px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.10), 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-nav: 0 2px 20px rgba(0, 0, 0, 0.07);
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', sans-serif;
            line-height: 1.7;
            color: #1e293b;
            background-color: #ffffff;
            overflow-x: hidden;
            font-size: 16px;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--color-gold-500);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }
        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        @media (max-width: 1024px) {
            .container {
                max-width: 960px;
                padding-left: 1.25rem;
                padding-right: 1.25rem;
            }
        }
        @media (max-width: 768px) {
            .container {
                max-width: 720px;
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 0.875rem;
                padding-right: 0.875rem;
            }
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-nav);
            padding: 0;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 1.5rem;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, #1a3658 0%, #0f2440 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #e8c97a;
            font-size: 1.05rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: #1a3658;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .logo-text span {
            color: #c2943a;
            font-weight: 800;
        }
        .logo-text a {
            color: inherit;
        }
        .logo-text a:hover {
            color: inherit;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: nowrap;
        }
        .nav-links li a {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 0.85rem;
            border-radius: 0.5rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: #475569;
            white-space: nowrap;
            transition: all 0.2s ease;
            position: relative;
        }
        .nav-links li a:hover {
            color: #1a3658;
            background: #f1f5f9;
        }
        .nav-links li a.active {
            color: #c2943a;
            background: #fef9f0;
            font-weight: 600;
        }
        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: #c2943a;
            border-radius: 2px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }
        .btn-search {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            border: 1px solid #e2e8f0;
            background: #fff;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #64748b;
            transition: all 0.2s ease;
            font-size: 0.95rem;
        }
        .btn-search:hover {
            border-color: #c2943a;
            color: #c2943a;
            background: #fef9f0;
        }
        .btn-cta-header {
            padding: 0.5rem 1.35rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.875rem;
            background: linear-gradient(135deg, #c2943a 0%, #a67c2e 100%);
            color: #fff;
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: all 0.25s ease;
            box-shadow: 0 2px 10px rgba(194, 148, 58, 0.3);
        }
        .btn-cta-header:hover {
            box-shadow: 0 4px 18px rgba(194, 148, 58, 0.45);
            transform: translateY(-1px);
            color: #fff;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            width: 36px;
            height: 36px;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            padding: 6px;
            z-index: 1001;
        }
        .hamburger span {
            display: block;
            width: 22px;
            height: 2.2px;
            background: #1a3658;
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        @media (max-width: 1024px) {
            .nav-links {
                gap: 0;
            }
            .nav-links li a {
                padding: 0.45rem 0.6rem;
                font-size: 0.825rem;
            }
            .header-actions .btn-cta-header {
                padding: 0.45rem 1rem;
                font-size: 0.8rem;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 1rem 1.5rem;
                gap: 0.35rem;
                border-bottom: 2px solid #e2e8f0;
                box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.3s ease;
                z-index: 999;
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-links li a {
                display: block;
                padding: 0.7rem 1rem;
                border-radius: 0.5rem;
                font-size: 0.95rem;
                text-align: center;
            }
            .nav-links li a.active::after {
                display: none;
            }
            .header-actions .btn-cta-header {
                padding: 0.4rem 0.9rem;
                font-size: 0.78rem;
            }
        }
        @media (max-width: 520px) {
            .header-inner {
                height: 56px;
                gap: 0.75rem;
            }
            .logo-text {
                font-size: 1.05rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.85rem;
                border-radius: 8px;
            }
            .btn-cta-header {
                padding: 0.35rem 0.75rem;
                font-size: 0.72rem;
                border-radius: 1.5rem;
            }
            .btn-search {
                width: 32px;
                height: 32px;
                font-size: 0.8rem;
            }
            .nav-links {
                top: 56px;
            }
        }

        .hero-section {
            position: relative;
            background: linear-gradient(135deg, #0a1a30 0%, #112233 40%, #0d1b2a 100%);
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 5rem 0 4rem;
            color: #fff;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 26, 48, 0.82) 0%, rgba(13, 27, 42, 0.9) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }
        .hero-badge {
            display: inline-block;
            padding: 0.35rem 1.2rem;
            background: rgba(232, 201, 122, 0.15);
            border: 1px solid rgba(232, 201, 122, 0.35);
            border-radius: 2rem;
            color: #e8c97a;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 1.5rem;
        }
        .hero-title {
            font-size: 2.75rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            line-height: 1.25;
            margin-bottom: 1.25rem;
            color: #fff;
        }
        .hero-title span {
            color: #e8c97a;
        }
        .hero-desc {
            font-size: 1.1rem;
            color: #cbd5e1;
            line-height: 1.8;
            max-width: 620px;
            margin: 0 auto 2rem;
        }
        .hero-stats-row {
            display: flex;
            gap: 2rem;
            justify-content: center;
            flex-wrap: wrap;
            margin-top: 1.5rem;
        }
        .hero-stat-item {
            text-align: center;
            min-width: 90px;
        }
        .hero-stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: #e8c97a;
            line-height: 1.2;
        }
        .hero-stat-label {
            font-size: 0.8rem;
            color: #94a3b8;
            margin-top: 0.2rem;
            letter-spacing: 0.03em;
        }

        @media (max-width: 768px) {
            .hero-section {
                padding: 3.5rem 0 2.5rem;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-stats-row {
                gap: 1.25rem;
            }
            .hero-stat-num {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .hero-section {
                padding: 2.5rem 0 2rem;
            }
            .hero-title {
                font-size: 1.55rem;
            }
            .hero-desc {
                font-size: 0.85rem;
            }
            .hero-badge {
                font-size: 0.75rem;
                padding: 0.3rem 0.9rem;
            }
        }

        .section-pad {
            padding: 4.5rem 0;
        }
        @media (max-width: 768px) {
            .section-pad {
                padding: 3rem 0;
            }
        }
        @media (max-width: 520px) {
            .section-pad {
                padding: 2.25rem 0;
            }
        }

        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: #1a3658;
            text-align: center;
            margin-bottom: 0.6rem;
            letter-spacing: 0.02em;
        }
        .section-subtitle {
            text-align: center;
            color: #64748b;
            font-size: 0.95rem;
            margin-bottom: 2.5rem;
            max-width: 540px;
            margin-left: auto;
            margin-right: auto;
        }
        .section-title-sm {
            font-size: 1.35rem;
            font-weight: 700;
            color: #1a3658;
            margin-bottom: 0.75rem;
            letter-spacing: 0.02em;
        }

        .card {
            background: #fff;
            border-radius: var(--radius-2xl);
            box-shadow: var(--shadow-card);
            padding: 1.75rem;
            transition: all 0.3s ease;
            border: 1px solid #f1f5f9;
            height: 100%;
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: #e2e8f0;
        }
        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 1rem;
            flex-shrink: 0;
        }
        .card-icon-blue {
            background: #eef3fa;
            color: #1a3658;
        }
        .card-icon-gold {
            background: #fef9f0;
            color: #c2943a;
        }
        .card-icon-green {
            background: #ecfdf5;
            color: #0f766e;
        }
        .card-icon-purple {
            background: #f5f0fa;
            color: #6b21a8;
        }
        .card-title {
            font-weight: 700;
            font-size: 1.1rem;
            color: #1e293b;
            margin-bottom: 0.5rem;
        }
        .card-desc {
            font-size: 0.9rem;
            color: #64748b;
            line-height: 1.7;
        }

        .live-data-panel {
            background: #fff;
            border-radius: var(--radius-3xl);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            border: 1px solid #f1f5f9;
        }
        .live-data-header {
            background: linear-gradient(135deg, #1a3658 0%, #0f2440 100%);
            color: #fff;
            padding: 1rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.75rem;
        }
        .live-dot {
            width: 10px;
            height: 10px;
            background: #22c55e;
            border-radius: 50%;
            display: inline-block;
            animation: pulse-dot 1.6s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.5);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(34, 197, 94, 0);
            }
        }
        .live-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        .live-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 650px;
        }
        .live-table th {
            background: #f8fafc;
            padding: 0.8rem 1rem;
            text-align: left;
            font-weight: 600;
            font-size: 0.82rem;
            color: #475569;
            white-space: nowrap;
            border-bottom: 2px solid #e2e8f0;
        }
        .live-table td {
            padding: 0.85rem 1rem;
            font-size: 0.9rem;
            border-bottom: 1px solid #f1f5f9;
            color: #334155;
            white-space: nowrap;
        }
        .live-table tbody tr {
            transition: background 0.15s ease;
        }
        .live-table tbody tr:hover {
            background: #fefcf7;
        }
        .odds-change-up {
            color: #16a34a;
            font-weight: 600;
            animation: flash-green 0.6s ease;
        }
        .odds-change-down {
            color: #dc2626;
            font-weight: 600;
            animation: flash-red 0.6s ease;
        }
        @keyframes flash-green {
            0% {
                background: #dcfce7;
            }
            100% {
                background: transparent;
            }
        }
        @keyframes flash-red {
            0% {
                background: #fef2f2;
            }
            100% {
                background: transparent;
            }
        }
        .badge-live {
            display: inline-block;
            padding: 0.2rem 0.6rem;
            border-radius: 1rem;
            background: #fef2f2;
            color: #dc2626;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            animation: pulse-badge 2s ease-in-out infinite;
        }
        @keyframes pulse-badge {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.55;
            }
        }

        .content-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
            align-items: center;
        }
        .content-block.reverse {
            direction: rtl;
        }
        .content-block.reverse .content-block-text {
            direction: ltr;
        }
        .content-block-img {
            border-radius: var(--radius-2xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            aspect-ratio: 4/3;
            object-fit: cover;
            width: 100%;
        }
        .content-block-text p {
            color: #475569;
            line-height: 1.8;
            margin-bottom: 1rem;
        }
        @media (max-width: 768px) {
            .content-block {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .content-block.reverse {
                direction: ltr;
            }
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            margin-bottom: 0.85rem;
            overflow: hidden;
            border: 1px solid #f1f5f9;
            transition: all 0.2s ease;
        }
        .faq-item:hover {
            border-color: #e2e8f0;
        }
        .faq-question {
            padding: 1.2rem 1.5rem;
            font-weight: 600;
            font-size: 0.98rem;
            color: #1e293b;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            user-select: none;
            transition: color 0.2s ease;
        }
        .faq-question:hover {
            color: #c2943a;
        }
        .faq-question i {
            transition: transform 0.3s ease;
            color: #94a3b8;
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: #c2943a;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 1.5rem;
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 1.5rem 1.3rem;
        }
        .faq-answer p {
            color: #475569;
            font-size: 0.9rem;
            line-height: 1.75;
            margin: 0;
        }

        .cta-section {
            background: linear-gradient(135deg, #1a3658 0%, #0f2440 100%);
            border-radius: var(--radius-3xl);
            padding: 3rem 2.5rem;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: rgba(232, 201, 122, 0.08);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-title {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 1rem;
            position: relative;
            z-index: 1;
        }
        .cta-desc {
            color: #cbd5e1;
            margin-bottom: 2rem;
            position: relative;
            z-index: 1;
            font-size: 0.95rem;
        }
        .btn-gold {
            display: inline-block;
            padding: 0.8rem 2.2rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.95rem;
            background: linear-gradient(135deg, #d4a853 0%, #c2943a 100%);
            color: #fff;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 18px rgba(194, 148, 58, 0.35);
            position: relative;
            z-index: 1;
        }
        .btn-gold:hover {
            box-shadow: 0 6px 24px rgba(194, 148, 58, 0.5);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-outline-light {
            display: inline-block;
            padding: 0.7rem 1.8rem;
            border-radius: 2rem;
            font-weight: 500;
            font-size: 0.9rem;
            border: 2px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            background: transparent;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            z-index: 1;
        }
        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        .site-footer {
            background: #0a1a30;
            color: #cbd5e1;
            padding: 3.5rem 0 1.5rem;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-brand .logo-text-footer {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: inline-block;
            margin-bottom: 0.75rem;
        }
        .footer-brand .logo-text-footer span {
            color: #e8c97a;
        }
        .footer-brand p {
            color: #94a3b8;
            line-height: 1.7;
            font-size: 0.85rem;
            max-width: 280px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 1rem;
            letter-spacing: 0.03em;
        }
        .footer-col ul li {
            margin-bottom: 0.55rem;
        }
        .footer-col ul li a {
            color: #94a3b8;
            font-size: 0.85rem;
            transition: color 0.2s ease;
        }
        .footer-col ul li a:hover {
            color: #e8c97a;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.75rem;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 1.25rem;
            font-size: 0.78rem;
            color: #64748b;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        .stats-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .stat-card {
            text-align: center;
            background: #fff;
            border-radius: var(--radius-2xl);
            padding: 1.75rem 1rem;
            box-shadow: var(--shadow-card);
            border: 1px solid #f1f5f9;
            transition: all 0.3s ease;
        }
        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .stat-card .stat-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #c2943a;
            line-height: 1.2;
        }
        .stat-card .stat-label {
            font-size: 0.85rem;
            color: #64748b;
            margin-top: 0.4rem;
        }
        @media (max-width: 768px) {
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
            .stat-card .stat-num {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 520px) {
            .stats-strip {
                grid-template-columns: 1fr 1fr;
                gap: 0.75rem;
            }
            .stat-card {
                padding: 1.25rem 0.75rem;
            }
        }

        .tag-inline {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            border-radius: 1rem;
            font-size: 0.75rem;
            font-weight: 500;
            letter-spacing: 0.02em;
        }
        .tag-hot {
            background: #fef2f2;
            color: #dc2626;
        }
        .tag-new {
            background: #ecfdf5;
            color: #0f766e;
        }
        .tag-popular {
            background: #eff6ff;
            color: #2563eb;
        }