/* roulang page: index */
:root {
            --color-primary: #1B2A4A;
            --color-primary-light: #243660;
            --color-primary-dark: #111D35;
            --color-accent: #C8963E;
            --color-accent-light: #D9B068;
            --color-accent-dark: #A67A2E;
            --color-bg: #FAF8F5;
            --color-bg-white: #FFFFFF;
            --color-bg-light: #F5F2ED;
            --color-bg-dark: #1B2A4A;
            --color-text: #2D2D2D;
            --color-text-light: #5A5A5A;
            --color-text-muted: #8B8578;
            --color-text-on-dark: #E8E4DC;
            --color-border: #E5E0D8;
            --color-border-light: #F0EDE7;
            --color-success: #4A8B5C;
            --color-warning: #D4A843;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(27, 42, 74, 0.06);
            --shadow-md: 0 4px 16px rgba(27, 42, 74, 0.08);
            --shadow-lg: 0 8px 32px rgba(27, 42, 74, 0.12);
            --shadow-xl: 0 16px 48px rgba(27, 42, 74, 0.16);
            --font-sans: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-serif: 'Noto Serif SC', 'STSong', 'SimSun', 'Songti SC', serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --max-width: 1200px;
            --nav-height: 72px;
        }

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

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

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

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

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

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            transition: box-shadow var(--transition-base), background var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
            background: rgba(255, 255, 255, 0.98);
        }

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

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.04em;
            white-space: nowrap;
            z-index: 1001;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1.1rem;
            letter-spacing: 0;
            flex-shrink: 0;
        }

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

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-light);
            border-radius: var(--radius-sm);
            transition: color var(--transition-fast), background var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 20px;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
            transition: transform var(--transition-base);
        }

        .nav-links a:hover {
            color: var(--color-primary);
            background: rgba(27, 42, 74, 0.04);
        }

        .nav-links a:hover::after {
            transform: translateX(-50%) scaleX(1);
        }

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

        .nav-links a.active::after {
            transform: translateX(-50%) scaleX(1);
            width: 28px;
            background: var(--color-accent);
        }

        .nav-cta {
            margin-left: 12px;
            padding: 10px 22px !important;
            background: var(--color-accent) !important;
            color: #fff !important;
            font-weight: 600 !important;
            border-radius: var(--radius-md) !important;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast) !important;
        }

        .nav-cta:hover {
            background: var(--color-accent-dark) !important;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .nav-cta::after {
            display: none !important;
        }

        .mobile-toggle {
            display: none;
            z-index: 1001;
            width: 40px;
            height: 40px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 6px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: transform var(--transition-base), opacity var(--transition-fast);
        }

        .mobile-toggle.active span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        .mobile-toggle.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .mobile-toggle.active span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        @media (max-width: 920px) {
            .mobile-toggle {
                display: flex;
            }

            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                padding: 90px 28px 40px;
                gap: 4px;
                box-shadow: var(--shadow-xl);
                transition: right var(--transition-slow);
                z-index: 999;
            }

            .nav-links.open {
                right: 0;
            }

            .nav-links a {
                width: 100%;
                padding: 12px 16px;
                font-size: 1.05rem;
                border-radius: var(--radius-md);
            }

            .nav-links a::after {
                display: none;
            }

            .nav-links a.active {
                background: rgba(27, 42, 74, 0.06);
            }

            .nav-cta {
                margin-left: 0;
                margin-top: 12px;
                text-align: center;
                justify-content: center;
                width: 100%;
            }

            .mobile-overlay {
                display: none;
                position: fixed;
                inset: 0;
                background: rgba(0, 0, 0, 0.35);
                z-index: 998;
            }

            .mobile-overlay.show {
                display: block;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                padding: 0 16px;
            }
            .logo-link {
                font-size: 1.15rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.95rem;
            }
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            background: var(--color-primary);
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            margin-top: var(--nav-height);
            overflow: hidden;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(27, 42, 74, 0.88) 0%, rgba(27, 42, 74, 0.7) 40%, rgba(17, 29, 53, 0.78) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
            padding: 60px 0;
            color: #fff;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(200, 150, 62, 0.25);
            border: 1px solid rgba(200, 150, 62, 0.45);
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--color-accent-light);
            letter-spacing: 0.05em;
            margin-bottom: 20px;
        }

        .hero-title {
            font-family: var(--font-serif);
            font-size: 3rem;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: 0.03em;
            margin-bottom: 18px;
            color: #fff;
        }

        .hero-title em {
            font-style: normal;
            color: var(--color-accent-light);
        }

        .hero-subtitle {
            font-size: 1.15rem;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
            max-width: 620px;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 4px 18px rgba(200, 150, 62, 0.35);
        }
        .btn-primary:hover {
            background: var(--color-accent-light);
            box-shadow: 0 6px 24px rgba(200, 150, 62, 0.5);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.45);
        }
        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
        }

        .btn:focus-visible {
            outline: 3px solid var(--color-accent-light);
            outline-offset: 3px;
        }

        @media (max-width: 768px) {
            .hero-section {
                min-height: 500px;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-content {
                padding: 40px 0;
            }
            .btn {
                padding: 11px 22px;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 520px) {
            .hero-section {
                min-height: 440px;
            }
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-buttons {
                flex-direction: column;
                gap: 10px;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 72px 0;
        }

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

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

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-accent);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .section-title {
            font-family: var(--font-serif);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.03em;
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }

        /* ========== STATS ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }

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

        .stat-number {
            font-family: var(--font-serif);
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .stat-number span {
            color: var(--color-accent);
        }

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

        @media (max-width: 920px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }

        /* ========== ADVANTAGE CARDS ========== */
        .cards-grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .cards-grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .advantage-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            text-align: center;
        }

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

        .advantage-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: rgba(200, 150, 62, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.6rem;
            color: var(--color-accent);
            transition: background var(--transition-fast);
        }

        .advantage-card:hover .advantage-icon {
            background: rgba(200, 150, 62, 0.2);
        }

        .advantage-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 8px;
        }

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

        @media (max-width: 1024px) {
            .cards-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .cards-grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .cards-grid-4,
            .cards-grid-3 {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .advantage-card {
                padding: 24px 18px;
            }
        }

        /* ========== BRAND STORY ========== */
        .brand-story-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            background: var(--color-bg-white);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .brand-story-image {
            height: 100%;
            min-height: 380px;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            border-radius: var(--radius-xl) 0 0 var(--radius-xl);
        }

        .brand-story-text {
            padding: 40px 40px 40px 0;
        }

        .brand-story-text h3 {
            font-family: var(--font-serif);
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 16px;
        }

        .brand-story-text p {
            color: var(--color-text-light);
            line-height: 1.85;
            font-size: 0.98rem;
            margin-bottom: 14px;
        }

        .brand-story-text .highlight {
            color: var(--color-accent);
            font-weight: 600;
        }

        @media (max-width: 920px) {
            .brand-story-block {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .brand-story-image {
                min-height: 260px;
                border-radius: var(--radius-xl) var(--radius-xl) 0 0;
            }
            .brand-story-text {
                padding: 28px 24px;
            }
        }

        /* ========== EVENT / SERVICE CARDS ========== */
        .event-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }

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

        .event-card-image {
            height: 200px;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        .event-card-body {
            padding: 20px;
        }

        .event-card-tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(200, 150, 62, 0.12);
            color: var(--color-accent-dark);
            font-size: 0.8rem;
            font-weight: 600;
            border-radius: 50px;
            margin-bottom: 10px;
        }

        .event-card-body h4 {
            font-size: 1.08rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 6px;
        }

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

        /* ========== CATEGORY GRID ========== */
        .category-grid-5 {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .category-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            text-align: center;
            cursor: pointer;
        }

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

        .category-card-image {
            height: 160px;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        .category-card-body {
            padding: 16px 12px;
        }

        .category-card-body h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 4px;
        }

        .category-card-body span {
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }

        @media (max-width: 1024px) {
            .category-grid-5 {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (max-width: 640px) {
            .category-grid-5 {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .category-card-image {
                height: 120px;
            }
        }
        @media (max-width: 420px) {
            .category-grid-5 {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
        }

        /* ========== PARTNERS ========== */
        .partners-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 32px 40px;
        }

        .partner-item {
            padding: 16px 20px;
            background: var(--color-bg-white);
            border-radius: var(--radius-md);
            font-weight: 600;
            color: var(--color-text-muted);
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            border: 1px solid var(--color-border-light);
            transition: color var(--transition-fast), border-color var(--transition-fast);
            white-space: nowrap;
        }

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

        /* ========== TESTIMONIALS ========== */
        .testimonial-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            position: relative;
        }

        .testimonial-card::before {
            content: '"';
            position: absolute;
            top: 8px;
            left: 16px;
            font-size: 4rem;
            color: rgba(200, 150, 62, 0.15);
            font-family: var(--font-serif);
            line-height: 1;
            pointer-events: none;
        }

        .testimonial-text {
            font-size: 0.95rem;
            color: var(--color-text-light);
            line-height: 1.7;
            margin-bottom: 14px;
            padding-top: 8px;
            position: relative;
            z-index: 1;
        }

        .testimonial-author {
            font-weight: 600;
            color: var(--color-primary);
            font-size: 0.9rem;
        }

        .testimonial-role {
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: var(--color-bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: box-shadow var(--transition-fast);
        }

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

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition-fast);
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(200, 150, 62, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--color-accent);
            transition: transform var(--transition-base), background var(--transition-fast);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: rgba(200, 150, 62, 0.22);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            font-size: 0.9rem;
            color: var(--color-text-light);
            line-height: 1.75;
        }

        /* ========== NEWS ========== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 850px;
            margin: 0 auto;
        }

        .news-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            background: var(--color-bg-white);
            border-radius: var(--radius-md);
            padding: 20px;
            border: 1px solid var(--color-border-light);
            transition: box-shadow var(--transition-fast), transform var(--transition-fast);
        }

        .news-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(3px);
        }

        .news-date {
            flex-shrink: 0;
            text-align: center;
            min-width: 56px;
            padding: 8px 6px;
            background: rgba(27, 42, 74, 0.04);
            border-radius: var(--radius-sm);
            font-weight: 700;
            color: var(--color-primary);
            font-size: 0.85rem;
            line-height: 1.3;
        }

        .news-date small {
            display: block;
            font-weight: 400;
            font-size: 0.7rem;
            color: var(--color-text-muted);
        }

        .news-content h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 4px;
        }

        .news-content p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.5;
            margin-bottom: 8px;
        }

        .news-readmore {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-accent);
            transition: color var(--transition-fast);
        }

        .news-readmore:hover {
            color: var(--color-accent-dark);
        }

        @media (max-width: 600px) {
            .news-item {
                flex-direction: column;
                gap: 10px;
                padding: 16px;
            }
            .news-date {
                display: inline-block;
                min-width: auto;
                padding: 4px 10px;
            }
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--color-primary);
            color: #fff;
            text-align: center;
            padding: 64px 0;
            border-radius: 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.12;
            z-index: 0;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            max-width: 650px;
            margin: 0 auto;
        }

        .cta-section h2 {
            font-family: var(--font-serif);
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 28px;
            line-height: 1.7;
        }

        .cta-section .btn-primary {
            font-size: 1.05rem;
            padding: 15px 34px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-primary-dark);
            color: var(--color-text-on-dark);
            padding: 48px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand h3 {
            font-family: var(--font-serif);
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.55);
            padding: 5px 0;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ========== BG LIGHT SECTION ========== */
        .bg-light {
            background: var(--color-bg-light);
        }

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

/* roulang page: category4 */
:root {
            --primary: #1a1a2e;
            --primary-light: #252542;
            --accent: #c9a96e;
            --accent-hover: #b8934f;
            --accent-light: #f0e4cf;
            --accent-glow: rgba(201, 169, 110, 0.25);
            --bg: #faf8f5;
            --bg-card: #ffffff;
            --bg-dark: #12121f;
            --bg-dark-card: #1c1c32;
            --text: #1e1e2a;
            --text-secondary: #5a5a6e;
            --text-light: #8a8a9a;
            --text-on-dark: #e8e8ef;
            --text-on-dark-secondary: #b0b0c0;
            --border: #e5e0d8;
            --border-light: #f0ece5;
            --radius-sm: 8px;
            --radius: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.07);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 16px 44px rgba(0, 0, 0, 0.13);
            --shadow-xl: 0 24px 60px rgba(0, 0, 0, 0.16);
            --transition-fast: 0.18s ease;
            --transition: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-display: 'Noto Serif SC', 'STSong', 'Songti SC', 'SimSun', 'Times New Roman', serif;
            --max-width: 1200px;
            --nav-height: 68px;
        }

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

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

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

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

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            outline: none;
            transition: all var(--transition);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 28px;
        }

        /* ========== HEADER & NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }

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

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

        .logo {
            font-family: var(--font-display);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.04em;
            white-space: nowrap;
            flex-shrink: 0;
        }

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

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            flex-wrap: wrap;
            justify-content: flex-end;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 6px;
            font-size: 0.93rem;
            font-weight: 500;
            color: var(--text-secondary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            position: relative;
            transition: color var(--transition-fast), background var(--transition-fast);
        }

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

        .nav-links a.active {
            color: var(--accent);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 22px;
            height: 2.5px;
            border-radius: 2px;
            background: var(--accent);
        }

        .nav-links .nav-cta {
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            padding: 9px 20px;
            border-radius: 22px;
            margin-left: 6px;
            transition: all var(--transition);
        }

        .nav-links .nav-cta:hover {
            background: var(--accent-hover);
            color: #fff;
            box-shadow: 0 4px 14px var(--accent-glow);
        }

        .nav-links .nav-cta.active::after {
            display: none;
        }

        /* 移动端汉堡菜单 */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            z-index: 1001;
            background: none;
            border: none;
        }

        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .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);
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            background: var(--bg-dark) url('assets/images/backpic/back-1.webp') center / cover no-repeat;
            min-height: 340px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(18, 18, 31, 0.88) 0%, rgba(26, 26, 46, 0.78) 40%, rgba(18, 18, 31, 0.85) 100%);
            z-index: 1;
        }

        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 60px 28px;
            width: 100%;
        }

        .page-banner .banner-badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-size: 0.85rem;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 20px;
            letter-spacing: 0.05em;
            margin-bottom: 16px;
        }

        .page-banner h1 {
            font-family: var(--font-display);
            font-size: 2.6rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .page-banner .banner-subtitle {
            font-size: 1.1rem;
            color: var(--text-on-dark-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: 64px 0;
        }

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

        .section-header .section-tag {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-header h2 {
            font-family: var(--font-display);
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.03em;
            line-height: 1.3;
        }

        .section-header .section-desc {
            color: var(--text-secondary);
            font-size: 0.98rem;
            margin-top: 8px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        /* ========== MEMBER TIER CARDS ========== */
        .tier-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        .tier-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 20px 24px;
            text-align: center;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
            cursor: default;
        }

        .tier-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--accent);
        }

        .tier-card.featured {
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
            background: linear-gradient(180deg, #fffefb 0%, #fdf8ef 100%);
        }

        .tier-card.featured::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: var(--accent);
            border-radius: 0 0 4px 4px;
        }

        .tier-card .tier-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 16px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            font-weight: 700;
            letter-spacing: 0.02em;
        }

        .tier-card .tier-icon.bronze {
            background: #f5ede0;
            color: #a0784a;
        }
        .tier-card .tier-icon.silver {
            background: #eef0f3;
            color: #6b7d8e;
        }
        .tier-card .tier-icon.gold {
            background: #fef9ec;
            color: #c4982e;
        }
        .tier-card .tier-icon.diamond {
            background: #eef5fb;
            color: #3b7db5;
        }
        .tier-card .tier-icon.crown {
            background: #f8f0fa;
            color: #8b4fa3;
        }

        .tier-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .tier-card .tier-points {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 10px;
        }

        .tier-card .tier-benefits {
            list-style: none;
            font-size: 0.88rem;
            color: var(--text-secondary);
            text-align: left;
            padding: 0 4px;
            line-height: 1.6;
        }

        .tier-card .tier-benefits li {
            padding: 3px 0;
            padding-left: 18px;
            position: relative;
        }

        .tier-card .tier-benefits li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--accent);
            font-weight: 700;
            font-size: 0.78rem;
        }

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

        .benefit-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 30px 24px;
            transition: all var(--transition);
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }

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

        .benefit-card .benefit-icon-wrap {
            flex-shrink: 0;
            width: 50px;
            height: 50px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            background: var(--accent-light);
            color: var(--accent);
        }

        .benefit-card .benefit-info h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }

        .benefit-card .benefit-info p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ========== POINTS SYSTEM ========== */
        .points-section {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            display: flex;
            gap: 40px;
            align-items: center;
            flex-wrap: wrap;
        }

        .points-visual {
            flex: 1;
            min-width: 200px;
            text-align: center;
        }

        .points-circle {
            width: 150px;
            height: 150px;
            border-radius: 50%;
            background: conic-gradient(var(--accent) 0% 65%, rgba(255, 255, 255, 0.12) 65% 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto;
            position: relative;
        }

        .points-circle-inner {
            width: 110px;
            height: 110px;
            border-radius: 50%;
            background: var(--bg-dark);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        .points-circle-inner .points-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1;
        }

        .points-circle-inner .points-label {
            font-size: 0.75rem;
            color: var(--text-on-dark-secondary);
            margin-top: 2px;
        }

        .points-info {
            flex: 2;
            min-width: 280px;
        }

        .points-info h3 {
            font-family: var(--font-display);
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .points-info p {
            color: var(--text-on-dark-secondary);
            font-size: 0.93rem;
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .points-rules {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px 16px;
        }

        .points-rules li {
            font-size: 0.88rem;
            color: var(--text-on-dark-secondary);
            padding-left: 20px;
            position: relative;
            line-height: 1.5;
        }

        .points-rules li::before {
            content: '✦';
            position: absolute;
            left: 0;
            color: var(--accent);
            font-size: 0.7rem;
            top: 2px;
        }

        /* ========== VIP SERVICES ========== */
        .vip-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .vip-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 20px;
            text-align: center;
            transition: all var(--transition);
        }

        .vip-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--accent);
        }

        .vip-card .vip-icon {
            font-size: 2.2rem;
            margin-bottom: 12px;
            display: block;
        }

        .vip-card h4 {
            font-weight: 700;
            font-size: 1.02rem;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .vip-card p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ========== STATS ROW ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 20px;
            text-align: center;
            transition: all var(--transition);
        }

        .stat-card:hover {
            box-shadow: var(--shadow);
            border-color: var(--accent);
        }

        .stat-card .stat-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: 0.02em;
            line-height: 1;
            margin-bottom: 6px;
        }

        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
        }

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

        .faq-question {
            width: 100%;
            background: none;
            text-align: left;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            cursor: pointer;
            line-height: 1.5;
        }

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

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

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

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 0.93rem;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--bg-dark);
            border-radius: var(--radius-xl);
            padding: 52px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(201, 169, 110, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-family: var(--font-display);
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            position: relative;
            z-index: 1;
            margin-bottom: 10px;
        }

        .cta-section p {
            color: var(--text-on-dark-secondary);
            font-size: 0.98rem;
            position: relative;
            z-index: 1;
            margin-bottom: 20px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition);
            position: relative;
            z-index: 1;
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
        }

        .btn-accent:hover {
            background: var(--accent-hover);
            box-shadow: 0 6px 22px var(--accent-glow);
            transform: translateY(-2px);
        }

        .btn-outline-light {
            border: 2px solid rgba(255, 255, 255, 0.35);
            color: #fff;
            background: transparent;
        }

        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 52px 0 28px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand h3 {
            font-family: var(--font-display);
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: 0.03em;
            color: #fff;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-on-dark-secondary);
            line-height: 1.65;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: var(--text-on-dark-secondary);
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 22px;
            font-size: 0.8rem;
            color: var(--text-on-dark-secondary);
            line-height: 1.5;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .tier-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .tier-card:nth-child(4),
            .tier-card:nth-child(5) {
                grid-column: span 1;
            }
            .vip-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .benefits-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .points-section {
                flex-direction: column;
                text-align: center;
                padding: 36px 24px;
            }
            .points-rules {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 60px;
            }
            .hamburger {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 20px;
                gap: 2px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                transition: transform var(--transition), opacity var(--transition);
                z-index: 999;
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
            }
            .nav-links a {
                padding: 12px 16px;
                border-radius: 8px;
                font-size: 1rem;
            }
            .nav-links .nav-cta {
                margin-left: 0;
                text-align: center;
                justify-content: center;
                margin-top: 4px;
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-links a.active {
                background: var(--accent-light);
                color: var(--accent);
            }
            .tier-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .vip-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .benefits-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card .stat-num {
                font-size: 1.8rem;
            }
            .points-section {
                padding: 28px 18px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .page-banner {
                min-height: 260px;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .page-banner .banner-subtitle {
                font-size: 0.9rem;
            }
            .section {
                padding: 40px 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .cta-section {
                padding: 36px 20px;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .container {
                padding: 0 16px;
            }
            .header-inner {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .stats-row {
                grid-template-columns: 1fr;
            }
            .points-circle {
                width: 120px;
                height: 120px;
            }
            .points-circle-inner {
                width: 88px;
                height: 88px;
            }
            .points-circle-inner .points-num {
                font-size: 1.5rem;
            }
            .btn {
                padding: 10px 22px;
                font-size: 0.88rem;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #1a1a2e;
            --color-primary-light: #2d2d4a;
            --color-accent: #c9a96e;
            --color-accent-hover: #b8924f;
            --color-accent-light: #e8d5b0;
            --color-accent-soft: #f7efe0;
            --color-bg: #fafaf9;
            --color-bg-alt: #f4f1eb;
            --color-bg-dark: #1a1a2e;
            --color-text: #1c1c1c;
            --color-text-light: #5a5a5a;
            --color-text-muted: #888888;
            --color-text-inverse: #f5f5f5;
            --color-border: #e0dcd3;
            --color-border-light: #ece8df;
            --color-white: #ffffff;
            --color-success: #3a7d5a;
            --color-warning: #c2843a;
            --color-danger: #b8453a;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50%;
            --shadow-sm: 0 1px 3px rgba(26, 26, 46, 0.06);
            --shadow-md: 0 4px 16px rgba(26, 26, 46, 0.09);
            --shadow-lg: 0 8px 32px rgba(26, 26, 46, 0.13);
            --shadow-xl: 0 16px 48px rgba(26, 26, 46, 0.17);
            --font-sans: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-serif: 'Noto Serif SC', 'STSong', 'SimSun', 'Songti SC', serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --max-width: 1200px;
            --nav-height: 68px;
            --section-gap: 72px;
            --section-gap-sm: 48px;
        }

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

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

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

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

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

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

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

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }

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

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

        .logo {
            font-family: var(--font-serif);
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.03em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
        }

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

        .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--color-primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-weight: 700;
            font-size: 0.9rem;
            letter-spacing: 0;
            flex-shrink: 0;
        }

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

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text-light);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.01em;
        }

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

        .nav-links a.active {
            color: var(--color-accent);
            font-weight: 600;
        }

        .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;
        }

        .nav-links a.nav-cta {
            background: var(--color-primary);
            color: var(--color-white);
            padding: 9px 20px;
            border-radius: var(--radius-md);
            font-weight: 600;
            margin-left: 8px;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
        }

        .nav-links a.nav-cta:hover {
            background: var(--color-accent);
            color: var(--color-white);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .nav-links a.nav-cta::after {
            display: none;
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: var(--color-primary);
            font-size: 1.5rem;
            line-height: 1;
        }

        /* Main */
        .main-content {
            flex: 1;
        }

        /* Page Banner */
        .page-banner {
            position: relative;
            background: var(--color-bg-dark);
            background-image: url('assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            color: var(--color-text-inverse);
            padding: 72px 0 64px;
            text-align: center;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26, 26, 46, 0.78) 0%, rgba(26, 26, 46, 0.88) 100%);
            z-index: 1;
        }

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

        .page-banner .banner-badge {
            display: inline-block;
            background: var(--color-accent);
            color: var(--color-white);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 18px;
        }

        .page-banner h1 {
            font-family: var(--font-serif);
            font-size: 2.8rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            margin-bottom: 14px;
            line-height: 1.25;
        }

        .page-banner .banner-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.82);
            max-width: 620px;
            margin: 0 auto 28px;
            line-height: 1.65;
        }

        .page-banner .banner-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
            margin-top: 10px;
        }

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

        .page-banner .banner-stat-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: 0.02em;
        }

        .page-banner .banner-stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 2px;
        }

        /* Section Common */
        .section {
            padding: var(--section-gap) 0;
        }

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

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

        .section-header .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--color-accent);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-header h2 {
            font-family: var(--font-serif);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.02em;
            margin-bottom: 8px;
        }

        .section-header .section-desc {
            font-size: 0.98rem;
            color: var(--color-text-muted);
            max-width: 540px;
            margin: 0 auto;
            line-height: 1.6;
        }

        /* Game Cards Grid */
        .games-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

        .game-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-accent-light);
        }

        .game-card-image {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--color-bg-alt);
        }

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

        .game-card:hover .game-card-image img {
            transform: scale(1.06);
        }

        .game-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-accent);
            color: var(--color-white);
            padding: 5px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            z-index: 2;
        }

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

        .game-card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
            letter-spacing: 0.02em;
        }

        .game-card-body .game-type {
            display: inline-block;
            font-size: 0.78rem;
            color: var(--color-accent);
            font-weight: 500;
            margin-bottom: 8px;
        }

        .game-card-body p {
            font-size: 0.9rem;
            color: var(--color-text-light);
            line-height: 1.55;
            flex: 1;
            margin-bottom: 14px;
        }

        .game-card-meta {
            display: flex;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--color-text-muted);
            padding-top: 12px;
            border-top: 1px solid var(--color-border-light);
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 600;
            border-radius: var(--radius-md);
            cursor: pointer;
            border: none;
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
            white-space: nowrap;
            text-decoration: none;
        }

        .btn-primary {
            background: var(--color-primary);
            color: var(--color-white);
            box-shadow: var(--shadow-sm);
        }

        .btn-primary:hover {
            background: var(--color-accent);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
            color: var(--color-white);
        }

        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
        }

        .btn-outline:hover {
            background: var(--color-primary);
            color: var(--color-white);
        }

        .btn-accent {
            background: var(--color-accent);
            color: var(--color-white);
        }

        .btn-accent:hover {
            background: var(--color-accent-hover);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
            color: var(--color-white);
        }

        .btn-sm {
            padding: 7px 16px;
            font-size: 0.82rem;
            border-radius: var(--radius-sm);
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 1rem;
            border-radius: var(--radius-lg);
        }

        /* Ranking Section */
        .ranking-section {
            background: var(--color-bg-alt);
        }

        .ranking-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 18px;
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: 16px 22px;
            margin-bottom: 10px;
            box-shadow: var(--shadow-sm);
            border: 1px solid transparent;
            transition: all var(--transition-fast);
        }

        .ranking-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-accent-light);
            transform: translateX(4px);
        }

        .ranking-num {
            width: 42px;
            height: 42px;
            border-radius: var(--radius-full);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
            letter-spacing: 0.02em;
        }

        .ranking-num.top1 {
            background: #f0c040;
            color: #5c3d00;
        }
        .ranking-num.top2 {
            background: #c8c8c8;
            color: #3a3a3a;
        }
        .ranking-num.top3 {
            background: #d4a574;
            color: #4a2a10;
        }
        .ranking-num.normal {
            background: var(--color-bg-alt);
            color: var(--color-text-muted);
        }

        .ranking-info {
            flex: 1;
            min-width: 0;
        }

        .ranking-info h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-primary);
            letter-spacing: 0.02em;
        }

        .ranking-info .ranking-desc {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-top: 2px;
        }

        .ranking-score {
            font-weight: 700;
            color: var(--color-accent);
            font-size: 1.1rem;
            white-space: nowrap;
        }

        /* Feature Blocks */
        .feature-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .feature-image img {
            border-radius: var(--radius-lg);
            width: 100%;
            box-shadow: var(--shadow-lg);
        }

        .feature-text h3 {
            font-family: var(--font-serif);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .feature-text p {
            font-size: 0.95rem;
            color: var(--color-text-light);
            line-height: 1.7;
            margin-bottom: 14px;
        }

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

        .feature-list li {
            padding: 7px 0 7px 24px;
            position: relative;
            font-size: 0.92rem;
            color: var(--color-text-light);
            line-height: 1.5;
        }

        .feature-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 14px;
            width: 8px;
            height: 8px;
            background: var(--color-accent);
            border-radius: var(--radius-full);
            transform: translateY(-50%);
        }

        /* Data Stats */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }

        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--color-accent-light);
        }

        .stat-card .stat-icon {
            font-size: 2.2rem;
            margin-bottom: 10px;
            display: block;
        }

        .stat-card .stat-value {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.02em;
        }

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

        /* FAQ */
        .faq-section {
            background: var(--color-white);
        }

        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--color-border-light);
            padding: 20px 0;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .faq-item:first-child {
            border-top: 1px solid var(--color-border-light);
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--color-primary);
            letter-spacing: 0.02em;
            gap: 16px;
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: var(--radius-full);
            background: var(--color-accent-soft);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            transition: all var(--transition-fast);
            line-height: 1;
        }

        .faq-item.open .faq-icon {
            background: var(--color-accent);
            color: var(--color-white);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            font-size: 0.92rem;
            color: var(--color-text-light);
            line-height: 1.7;
            padding-right: 40px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 12px;
            padding-bottom: 4px;
        }

        /* CTA Section */
        .cta-section {
            background: var(--color-bg-dark);
            color: var(--color-text-inverse);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(201, 169, 110, 0.15) 0%, transparent 70%);
            z-index: 1;
        }

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

        .cta-section h2 {
            font-family: var(--font-serif);
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            margin-bottom: 10px;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 500px;
            margin: 0 auto 24px;
            line-height: 1.6;
        }

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

        /* Footer */
        .site-footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 20px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand h3 {
            font-family: var(--font-serif);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--color-white);
            margin-bottom: 10px;
            letter-spacing: 0.03em;
        }

        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.65;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-white);
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            padding: 5px 0;
            transition: color var(--transition-fast);
            letter-spacing: 0.01em;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 18px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
            letter-spacing: 0.02em;
            line-height: 1.6;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .games-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .feature-row {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .page-banner h1 {
                font-size: 2.2rem;
            }
            .page-banner .banner-stats {
                gap: 24px;
            }
            .section {
                padding: 52px 0;
            }
            .section-sm {
                padding: 36px 0;
            }
            :root {
                --section-gap: 52px;
                --section-gap-sm: 36px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--color-white);
                flex-direction: column;
                padding: 12px 20px;
                gap: 2px;
                border-bottom: 1px solid var(--color-border-light);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 12px 16px;
                width: 100%;
                border-radius: var(--radius-sm);
                font-size: 0.95rem;
            }
            .nav-links a.nav-cta {
                margin-left: 0;
                margin-top: 6px;
                text-align: center;
                justify-content: center;
            }
            .nav-links a.active::after {
                bottom: 4px;
            }
            .mobile-menu-btn {
                display: block;
            }
            .games-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .page-banner {
                padding: 48px 0 40px;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner .banner-subtitle {
                font-size: 0.95rem;
            }
            .page-banner .banner-stat-num {
                font-size: 1.5rem;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .ranking-item {
                flex-wrap: wrap;
                gap: 10px;
                padding: 14px 16px;
            }
            .ranking-score {
                font-size: 0.95rem;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-card .stat-value {
                font-size: 1.4rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .section {
                padding: 40px 0;
            }
            .section-sm {
                padding: 28px 0;
            }
            :root {
                --section-gap: 40px;
                --section-gap-sm: 28px;
                --nav-height: 60px;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 0.92rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .stats-row {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .page-banner .banner-stats {
                gap: 16px;
            }
            .page-banner .banner-stat-num {
                font-size: 1.3rem;
            }
            .page-banner .banner-stat-label {
                font-size: 0.75rem;
            }
            .game-card-body h3 {
                font-size: 1.05rem;
            }
            .ranking-num {
                width: 34px;
                height: 34px;
                font-size: 0.95rem;
            }
            .ranking-info h4 {
                font-size: 0.95rem;
            }
            .faq-question {
                font-size: 0.95rem;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #1B3A5C;
            --color-primary-light: #234B75;
            --color-primary-dark: #0F2440;
            --color-accent: #C8963E;
            --color-accent-light: #D9A94D;
            --color-accent-dark: #A87A2E;
            --color-accent-glow: #E8C97A;
            --color-bg: #F8F6F2;
            --color-bg-white: #FFFFFF;
            --color-bg-warm: #F3EFE8;
            --color-bg-card: #FFFFFF;
            --color-bg-dark: #1B3A5C;
            --color-text: #2D2D2D;
            --color-text-strong: #1A1A1A;
            --color-text-muted: #6B6B6B;
            --color-text-light: #8A8A8A;
            --color-text-on-dark: #E8E4DD;
            --color-text-on-primary: #FFFFFF;
            --color-border: #E5E0D8;
            --color-border-light: #EFEBE4;
            --color-border-medium: #D5CFC5;
            --color-success: #4A8B5C;
            --color-warning: #D4A043;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 14px 40px rgba(0, 0, 0, 0.14);
            --shadow-card-hover: 0 12px 36px rgba(27, 58, 92, 0.12);
            --shadow-nav: 0 2px 20px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.18s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-sans: 'Noto Sans SC', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-display: 'Noto Sans SC', 'Inter', sans-serif;
            --max-width: 1200px;
            --nav-height: 68px;
            --section-gap: 80px;
            --section-gap-sm: 48px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            letter-spacing: 0.01em;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-lg);
        }

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

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-display);
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-text-strong);
            letter-spacing: 0.02em;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 28px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 18px;
            }
            :root {
                --section-gap: 52px;
                --section-gap-sm: 34px;
            }
        }

        /* ========== HEADER & NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-nav);
            height: var(--nav-height);
            transition: all var(--transition-base);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--color-primary);
            letter-spacing: 0.04em;
            white-space: nowrap;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }

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

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            font-weight: 900;
            flex-shrink: 0;
        }

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

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 0.93rem;
            font-weight: 500;
            color: var(--color-text);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
            position: relative;
        }

        .nav-links a:hover {
            color: var(--color-primary);
            background: rgba(27, 58, 92, 0.04);
        }

        .nav-links a.active {
            color: var(--color-primary);
            font-weight: 600;
            background: rgba(27, 58, 92, 0.06);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background: var(--color-accent);
        }

        .nav-links a.nav-cta {
            background: var(--color-accent);
            color: #fff;
            font-weight: 600;
            padding: 9px 20px;
            border-radius: var(--radius-md);
            margin-left: 8px;
            transition: all var(--transition-base);
            box-shadow: 0 2px 8px rgba(200, 150, 62, 0.25);
        }

        .nav-links a.nav-cta:hover {
            background: var(--color-accent-dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(200, 150, 62, 0.4);
            transform: translateY(-1px);
        }

        .nav-links a.nav-cta::after {
            display: none;
        }

        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            z-index: 1001;
            background: transparent;
            border: none;
        }

        .mobile-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            border-radius: 3px;
            background: var(--color-primary);
            transition: all var(--transition-base);
        }

        .mobile-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .mobile-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .mobile-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        @media (max-width: 920px) {
            .mobile-toggle {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px 24px;
                gap: 4px;
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all var(--transition-slow);
                border-bottom: 1px solid var(--color-border);
                z-index: 999;
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-links a {
                padding: 13px 18px;
                font-size: 1rem;
                border-radius: var(--radius-md);
            }
            .nav-links a.nav-cta {
                margin-left: 0;
                text-align: center;
                justify-content: center;
                margin-top: 8px;
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-links a.active {
                border-left: 3px solid var(--color-accent);
                border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
                background: rgba(27, 58, 92, 0.04);
            }
        }

        /* ========== PAGE BANNER / HERO ========== */
        .page-banner {
            position: relative;
            padding: 80px 0 72px;
            background: linear-gradient(170deg, #1B3A5C 0%, #234B75 35%, #1a3552 100%);
            overflow: hidden;
            min-height: 380px;
            display: flex;
            align-items: center;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center 30%;
            opacity: 0.18;
            z-index: 0;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, rgba(248, 246, 242, 0.9) 0%, transparent 100%);
            z-index: 1;
        }

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

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.22);
            color: var(--color-accent-glow);
            padding: 7px 16px;
            border-radius: 50px;
            font-size: 0.88rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
        }

        .banner-badge i {
            font-size: 0.85rem;
            color: var(--color-accent);
        }

        .page-banner h1 {
            font-size: 3rem;
            font-weight: 900;
            color: #FFFFFF;
            margin-bottom: 16px;
            letter-spacing: 0.04em;
            line-height: 1.2;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
        }

        .page-banner .banner-subtitle {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            line-height: 1.7;
            font-weight: 400;
            letter-spacing: 0.02em;
        }

        .banner-stats-row {
            display: flex;
            gap: 32px;
            margin-top: 28px;
            flex-wrap: wrap;
        }

        .banner-stat-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.9);
            font-size: 0.95rem;
            font-weight: 500;
        }

        .banner-stat-item .stat-num {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--color-accent-glow);
            line-height: 1;
        }

        @media (max-width: 768px) {
            .page-banner {
                padding: 52px 0 48px;
                min-height: 300px;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .page-banner .banner-subtitle {
                font-size: 1rem;
            }
            .banner-stats-row {
                gap: 18px;
            }
            .banner-stat-item .stat-num {
                font-size: 1.3rem;
            }
        }

        /* ========== SECTION COMMONS ========== */
        .section {
            padding: var(--section-gap) 0;
        }

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

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

        .section-header .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-accent);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-text-strong);
            margin-bottom: 10px;
            letter-spacing: 0.03em;
        }

        .section-header p {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            max-width: 620px;
            margin: 0 auto;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .section-header h2 {
                font-size: 1.65rem;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }

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

        .step-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-xl);
            padding: 32px 24px 28px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            position: relative;
            transition: all var(--transition-base);
            text-align: center;
            counter-increment: step-counter;
        }

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

        .step-card::before {
            content: counter(step-counter);
            position: absolute;
            top: -18px;
            left: 50%;
            transform: translateX(-50%);
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--color-accent);
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 14px rgba(200, 150, 62, 0.35);
            z-index: 2;
        }

        .step-card .step-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-lg);
            background: rgba(27, 58, 92, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 12px auto 18px;
            font-size: 1.5rem;
            color: var(--color-primary);
            transition: all var(--transition-base);
        }

        .step-card:hover .step-icon {
            background: var(--color-primary);
            color: #fff;
            transform: scale(1.05);
        }

        .step-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text-strong);
        }

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

        @media (max-width: 920px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .step-card::before {
                top: -16px;
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }
        }
        @media (max-width: 520px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        /* ========== GAME CARDS GRID ========== */
        .games-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }

        .game-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .game-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-5px);
            border-color: var(--color-border-medium);
        }

        .game-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 11;
            background: #e8e4dd;
        }

        .game-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-slow);
        }

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

        .game-card .card-difficulty {
            position: absolute;
            top: 12px;
            right: 12px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(6px);
            padding: 5px 12px;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--color-success);
            letter-spacing: 0.03em;
            box-shadow: var(--shadow-xs);
        }

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

        .game-card .card-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--color-text-strong);
        }

        .game-card .card-body p {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.55;
            flex: 1;
            margin-bottom: 10px;
        }

        .game-card .card-tag-row {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .game-card .card-tag {
            font-size: 0.75rem;
            padding: 4px 10px;
            border-radius: 50px;
            background: rgba(27, 58, 92, 0.05);
            color: var(--color-primary);
            font-weight: 500;
            letter-spacing: 0.02em;
        }

        @media (max-width: 920px) {
            .games-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
        }
        @media (max-width: 520px) {
            .games-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ========== TIPS SECTION ========== */
        .tips-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }

        .tips-image-block {
            position: sticky;
            top: calc(var(--nav-height) + 30px);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .tips-image-block img {
            width: 100%;
            height: auto;
            border-radius: var(--radius-xl);
            aspect-ratio: 4 / 5;
            object-fit: cover;
        }

        .tips-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .tip-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 20px 22px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: all var(--transition-fast);
        }

        .tip-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-border-medium);
            transform: translateX(3px);
        }

        .tip-num {
            flex-shrink: 0;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-md);
            background: var(--color-primary);
            color: #fff;
            font-weight: 800;
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .tip-item:nth-child(even) .tip-num {
            background: var(--color-accent);
        }

        .tip-content h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--color-text-strong);
        }

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

        @media (max-width: 768px) {
            .tips-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .tips-image-block {
                position: static;
                max-height: 320px;
                overflow: hidden;
            }
            .tips-image-block img {
                aspect-ratio: 16 / 10;
            }
        }

        /* ========== STATS RIBBON ========== */
        .stats-ribbon {
            background: var(--color-bg-dark);
            padding: 52px 0;
            position: relative;
            overflow: hidden;
        }

        .stats-ribbon::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(200, 150, 62, 0.08) 0%, transparent 65%),
                radial-gradient(ellipse at 70% 50%, rgba(200, 150, 62, 0.06) 0%, transparent 65%);
            pointer-events: none;
        }

        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .stat-block .stat-value {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--color-accent-glow);
            line-height: 1;
            letter-spacing: 0.03em;
        }

        .stat-block .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 6px;
            font-weight: 400;
            letter-spacing: 0.03em;
        }

        @media (max-width: 768px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .stat-block .stat-value {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 520px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .stat-block .stat-value {
                font-size: 1.8rem;
            }
        }

        /* ========== FAQ SECTION ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-xs);
        }

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

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text-strong);
            background: transparent;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 14px;
            cursor: pointer;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
            border: none;
            font-family: inherit;
            line-height: 1.5;
        }

        .faq-question:hover {
            color: var(--color-primary);
            background: rgba(27, 58, 92, 0.02);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: rgba(27, 58, 92, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: var(--color-primary);
            transition: all var(--transition-base);
        }

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

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

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 22px 18px;
        }

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

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(160deg, #1B3A5C 0%, #234B75 50%, #1a3552 100%);
            padding: 64px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-2xl);
            margin: var(--section-gap) auto;
            max-width: var(--max-width);
        }

        @media (max-width: 768px) {
            .cta-section {
                margin: var(--section-gap-sm) 18px;
                border-radius: var(--radius-xl);
                padding: 44px 20px;
            }
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(200, 150, 62, 0.1) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

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

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 520px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-md);
            letter-spacing: 0.03em;
            transition: all var(--transition-base);
            cursor: pointer;
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(200, 150, 62, 0.35);
        }

        .btn-primary:hover {
            background: var(--color-accent-dark);
            box-shadow: 0 6px 22px rgba(200, 150, 62, 0.5);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.4);
        }

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

        .btn:focus-visible {
            outline: 3px solid var(--color-accent-glow);
            outline-offset: 3px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #1a1f2b;
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 28px;
            margin-top: var(--section-gap);
        }

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

        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: 0.04em;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.55);
            padding: 5px 0;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
            letter-spacing: 0.02em;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }
        }

        /* ========== SCROLL TO TOP ========== */
        .scroll-top-btn {
            position: fixed;
            bottom: 28px;
            right: 28px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            box-shadow: var(--shadow-lg);
            z-index: 900;
            opacity: 0;
            pointer-events: none;
            transition: all var(--transition-base);
            cursor: pointer;
            border: none;
        }

        .scroll-top-btn.visible {
            opacity: 1;
            pointer-events: auto;
        }

        .scroll-top-btn:hover {
            background: var(--color-accent);
            transform: translateY(-3px);
            box-shadow: var(--shadow-xl);
        }

        @media (max-width: 520px) {
            .scroll-top-btn {
                bottom: 18px;
                right: 14px;
                width: 38px;
                height: 38px;
                font-size: 0.95rem;
            }
        }

        /* ========== ANIMATIONS ========== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(28px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-in {
            animation: fadeInUp 0.6s ease forwards;
        }

        /* ========== FOCUS & ACCESSIBILITY ========== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        /* ========== UTILITY ========== */
        .text-center {
            text-align: center;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }

/* roulang page: category1 */
:root {
            --color-primary: #B8862D;
            --color-primary-light: #D4A84B;
            --color-primary-dark: #8B5E1F;
            --color-secondary: #1B1B2F;
            --color-secondary-light: #252542;
            --color-accent: #C5963A;
            --color-bg: #FBF9F6;
            --color-bg-alt: #F3EFE8;
            --color-white: #FFFFFF;
            --color-text: #2D2D2D;
            --color-text-light: #6B6B6B;
            --color-text-lighter: #999999;
            --color-border: #E5E0D8;
            --color-border-light: #F0EDE6;
            --color-success: #2D8B4E;
            --color-warning: #D4892A;
            --color-tag-bg: #FDF3E0;
            --color-tag-text: #B8781A;
            --radius-xs: 4px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-xs: 0 1px 4px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 64px rgba(0, 0, 0, 0.14);
            --transition-fast: 0.18s ease;
            --transition: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-stack: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --max-width: 1260px;
            --header-height: 72px;
        }

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

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

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

        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;
            background: none;
            font-size: inherit;
        }

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

        ul,
        ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 28px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 18px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
        }

        /* 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(--color-border-light);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }

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

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

        @media (max-width: 768px) {
            .header-inner {
                padding: 0 18px;
            }
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-secondary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

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

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text);
            white-space: nowrap;
            transition: background var(--transition-fast), color var(--transition-fast);
            position: relative;
        }

        .nav-links a:hover {
            color: var(--color-primary);
            background: rgba(184, 134, 45, 0.06);
        }

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

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 22px;
            height: 3px;
            border-radius: 3px;
            background: var(--color-primary);
            transition: width var(--transition-fast);
        }

        .nav-links .nav-cta {
            background: var(--color-primary);
            color: #fff !important;
            font-weight: 600;
            padding: 9px 20px;
            border-radius: var(--radius-sm);
            margin-left: 8px;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
        }

        .nav-links .nav-cta:hover {
            background: var(--color-primary-dark);
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }

        .nav-links .nav-cta::after {
            display: none;
        }

        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            z-index: 1001;
            background: none;
            border: none;
        }

        .mobile-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            border-radius: 2px;
            background: var(--color-secondary);
            transition: all var(--transition-fast);
        }

        .mobile-toggle.active span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .mobile-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .mobile-toggle.active span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        @media (max-width: 920px) {
            .mobile-toggle {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                bottom: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                align-items: stretch;
                padding: 20px 24px 40px;
                gap: 4px;
                transform: translateX(100%);
                transition: transform var(--transition);
                overflow-y: auto;
                z-index: 999;
            }
            .nav-links.open {
                transform: translateX(0);
            }
            .nav-links a {
                padding: 14px 20px;
                font-size: 1.05rem;
                border-radius: var(--radius-md);
                justify-content: center;
                text-align: center;
            }
            .nav-links a.active::after {
                bottom: 6px;
                width: 30px;
            }
            .nav-links .nav-cta {
                margin-left: 0;
                margin-top: 8px;
                padding: 14px 20px;
            }
        }

        /* Main */
        .main-content {
            flex: 1;
        }

        /* Section spacing */
        .section {
            padding: 64px 0;
        }
        .section-sm {
            padding: 40px 0;
        }
        .section-lg {
            padding: 80px 0;
        }

        @media (max-width: 768px) {
            .section {
                padding: 42px 0;
            }
            .section-lg {
                padding: 54px 0;
            }
        }

        /* Inner Hero Banner */
        .inner-hero {
            position: relative;
            padding: 70px 0 64px;
            background: var(--color-secondary);
            color: #fff;
            overflow: hidden;
            min-height: 340px;
            display: flex;
            align-items: center;
        }

        .inner-hero .hero-bg {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.35;
            z-index: 0;
        }

        .inner-hero .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(27, 27, 47, 0.7) 0%, rgba(27, 27, 47, 0.88) 100%);
            z-index: 1;
        }

        .inner-hero .container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 18px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--color-primary-light);
        }
        .breadcrumb .sep {
            font-size: 0.7rem;
            opacity: 0.6;
        }
        .breadcrumb .current {
            color: var(--color-primary-light);
            font-weight: 500;
        }

        .inner-hero h1 {
            font-size: 2.8rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            margin-bottom: 14px;
            line-height: 1.25;
        }
        .inner-hero .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 620px;
            line-height: 1.7;
            margin-bottom: 24px;
        }
        .inner-hero .hero-meta {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.7);
        }
        .inner-hero .hero-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        @media (max-width: 768px) {
            .inner-hero {
                padding: 48px 0 40px;
                min-height: auto;
            }
            .inner-hero h1 {
                font-size: 2rem;
            }
            .inner-hero .hero-subtitle {
                font-size: 1rem;
            }
        }

        @media (max-width: 520px) {
            .inner-hero h1 {
                font-size: 1.6rem;
            }
        }

        /* Section Titles */
        .section-title {
            text-align: center;
            margin-bottom: 44px;
        }
        .section-title h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-secondary);
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }
        .section-title .title-line {
            display: block;
            width: 50px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px;
            margin: 12px auto 0;
        }
        .section-title p {
            color: var(--color-text-light);
            font-size: 1rem;
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .section-title h2 {
                font-size: 1.6rem;
            }
        }

        /* Cards Grid */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }
        .cards-grid.cols-3 {
            grid-template-columns: repeat(3, 1fr);
        }
        .cards-grid.cols-2 {
            grid-template-columns: repeat(2, 1fr);
        }

        @media (max-width: 1024px) {
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cards-grid.cols-3 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .cards-grid,
            .cards-grid.cols-3,
            .cards-grid.cols-2 {
                grid-template-columns: 1fr;
            }
        }

        /* Card */
        .card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }
        .card .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
            background: var(--color-bg-alt);
        }
        .card .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card .card-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            background: var(--color-tag-bg);
            color: var(--color-tag-text);
            margin-bottom: 10px;
            width: fit-content;
            letter-spacing: 0.03em;
        }
        .card .card-title {
            font-size: 1.1rem;
            font-weight: 650;
            color: var(--color-secondary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card .card-desc {
            font-size: 0.9rem;
            color: var(--color-text-light);
            line-height: 1.6;
            flex: 1;
        }
        .card .card-link {
            margin-top: 14px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition-fast), color var(--transition-fast);
        }
        .card .card-link:hover {
            gap: 8px;
            color: var(--color-primary-dark);
        }

        /* Event List */
        .event-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .event-item {
            display: flex;
            align-items: center;
            gap: 18px;
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: 18px 22px;
            border: 1px solid var(--color-border-light);
            transition: box-shadow var(--transition), transform var(--transition);
            flex-wrap: wrap;
        }
        .event-item:hover {
            box-shadow: var(--shadow-sm);
            transform: translateX(2px);
        }
        .event-date-box {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            background: var(--color-secondary);
            color: #fff;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            line-height: 1.15;
        }
        .event-date-box .day {
            font-size: 1.3rem;
        }
        .event-date-box .month {
            font-size: 0.72rem;
            opacity: 0.8;
            text-transform: uppercase;
        }
        .event-info {
            flex: 1;
            min-width: 200px;
        }
        .event-info .event-name {
            font-weight: 650;
            font-size: 1.05rem;
            color: var(--color-secondary);
            margin-bottom: 4px;
        }
        .event-info .event-detail {
            font-size: 0.85rem;
            color: var(--color-text-light);
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .event-status {
            flex-shrink: 0;
        }
        .badge {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.03em;
        }
        .badge-open {
            background: #E8F5E9;
            color: #2D8B4E;
        }
        .badge-soon {
            background: #FFF3E0;
            color: #D4892A;
        }
        .badge-closed {
            background: #F5F5F5;
            color: #999;
        }
        .badge-hot {
            background: #FFEBEE;
            color: #C62828;
        }

        @media (max-width: 520px) {
            .event-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .event-date-box {
                width: 48px;
                height: 48px;
            }
            .event-date-box .day {
                font-size: 1.1rem;
            }
        }

        /* Stats Row */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }
        .stat-card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: 28px 18px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .stat-card .stat-icon {
            font-size: 2rem;
            color: var(--color-primary);
            margin-bottom: 10px;
        }
        .stat-card .stat-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-secondary);
            letter-spacing: 0.02em;
        }
        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-light);
            margin-top: 4px;
        }

        @media (max-width: 1024px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card .stat-number {
                font-size: 1.6rem;
            }
        }

        /* Feature Cards */
        .feature-card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: 26px 22px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            transition: box-shadow var(--transition), transform var(--transition);
            text-align: center;
            height: 100%;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .feature-card .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--color-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.4rem;
            color: var(--color-primary);
        }
        .feature-card h4 {
            font-size: 1.05rem;
            font-weight: 650;
            color: var(--color-secondary);
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--color-text-light);
            line-height: 1.6;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: box-shadow var(--transition), border-color var(--transition);
        }
        .faq-item:hover {
            border-color: var(--color-border);
        }
        .faq-item.open {
            box-shadow: var(--shadow-sm);
            border-color: var(--color-primary-light);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-secondary);
            cursor: pointer;
            background: none;
            border: none;
            text-align: left;
            gap: 12px;
            line-height: 1.4;
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 0.85rem;
            color: var(--color-text-light);
            transition: transform var(--transition-fast);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--color-primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
        }
        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 0.92rem;
            color: var(--color-text-light);
            line-height: 1.75;
        }

        /* CTA Section */
        .cta-section {
            background: var(--color-secondary);
            color: #fff;
            text-align: center;
            padding: 60px 0;
            border-radius: var(--radius-lg);
            margin: 0 0 60px;
            position: relative;
            overflow: hidden;
        }
        .cta-section .cta-bg-pattern {
            position: absolute;
            inset: 0;
            opacity: 0.06;
            background: radial-gradient(circle at 20% 50%, #fff 0%, transparent 55%),
                radial-gradient(circle at 80% 40%, #fff 0%, transparent 50%);
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            cursor: pointer;
            border: none;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--color-primary-dark);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }
        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
        }
        .btn-lg {
            padding: 15px 36px;
            font-size: 1.1rem;
            border-radius: var(--radius-md);
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 40px 18px;
                border-radius: var(--radius-md);
                margin: 0 0 40px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

        /* Footer */
        .site-footer {
            background: var(--color-secondary);
            color: rgba(255, 255, 255, 0.8);
            padding: 50px 0 28px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 34px;
            margin-bottom: 34px;
        }
        .footer-brand h3 {
            color: #fff;
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            opacity: 0.75;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 650;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }
        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.7);
            padding: 4px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--color-primary-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            opacity: 0.6;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* Additional utility */
        .text-center {
            text-align: center;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mt-3 {
            margin-top: 24px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .mb-3 {
            margin-bottom: 24px;
        }
        .gap-3 {
            gap: 20px;
        }

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

        /* Smooth section entrance */
        @media (prefers-reduced-motion: no-preference) {
            .card,
            .event-item,
            .stat-card,
            .feature-card,
            .faq-item {
                animation: fadeInUp 0.5s ease both;
            }
            .cards-grid .card:nth-child(1) {
                animation-delay: 0.05s;
            }
            .cards-grid .card:nth-child(2) {
                animation-delay: 0.12s;
            }
            .cards-grid .card:nth-child(3) {
                animation-delay: 0.19s;
            }
            .cards-grid .card:nth-child(4) {
                animation-delay: 0.26s;
            }
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(18px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1a1a2e;
            --primary-light: #252540;
            --accent: #c9a96e;
            --accent-light: #dcc08a;
            --accent-dark: #b8934f;
            --accent-subtle: rgba(201, 169, 110, 0.12);
            --bg: #fafaf8;
            --bg-alt: #f3f1ec;
            --bg-dark: #1a1a2e;
            --surface: #ffffff;
            --text: #2d2d2d;
            --text-secondary: #5c5c5c;
            --text-muted: #8a8a8a;
            --text-light: #b0b0b0;
            --border: #e5e2dc;
            --border-light: #f0ede8;
            --border-accent: rgba(201, 169, 110, 0.35);
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.11);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.14);
            --transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', 'Monaco', monospace;
            --max-width: 1200px;
            --nav-height: 68px;
            --section-gap: 80px;
        }

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

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

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

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 28px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 18px;
            }
            :root {
                --section-gap: 52px;
                --nav-height: 56px;
            }
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }

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

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

        @media (max-width: 768px) {
            .header-inner {
                padding: 0 18px;
            }
        }

        .logo {
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            color: var(--primary);
            white-space: nowrap;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 7px;
        }

        .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-weight: 800;
            font-size: 0.85rem;
            letter-spacing: 0;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 0.93rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 6px;
            white-space: nowrap;
            position: relative;
            transition: color var(--transition), background var(--transition);
            letter-spacing: 0.02em;
        }

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

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

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 22px;
            height: 2.5px;
            background: var(--accent);
            border-radius: 4px;
        }

        .nav-links a.nav-cta {
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            padding: 9px 20px;
            border-radius: 22px;
            margin-left: 8px;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            letter-spacing: 0.03em;
        }

        .nav-links a.nav-cta:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(201, 169, 110, 0.35);
        }

        .nav-links a.nav-cta::after {
            display: none;
        }

        .mobile-menu-btn {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 6px;
            z-index: 1001;
            background: none;
            border: none;
        }

        .mobile-menu-btn span {
            display: block;
            width: 26px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        .mobile-menu-btn.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .mobile-menu-btn.active span:nth-child(2) {
            opacity: 0;
        }
        .mobile-menu-btn.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        @media (max-width: 1024px) {
            .mobile-menu-btn {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(14px);
                -webkit-backdrop-filter: blur(14px);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 20px 24px;
                gap: 3px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: transform var(--transition-slow), opacity var(--transition-slow);
                z-index: 999;
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-links a {
                padding: 12px 16px;
                font-size: 1rem;
                border-radius: 8px;
            }
            .nav-links a.active::after {
                bottom: 4px;
                width: 20px;
            }
            .nav-links a.nav-cta {
                margin-left: 0;
                text-align: center;
                justify-content: center;
                margin-top: 6px;
                padding: 13px 20px;
                border-radius: 10px;
            }
        }

        @media (max-width: 520px) {
            .logo {
                font-size: 1.15rem;
            }
            .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.7rem;
            }
        }

        /* Main */
        main {
            flex: 1;
        }

        /* Section */
        .section {
            padding: var(--section-gap) 0;
        }

        .section-sm {
            padding: 40px 0;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.07em;
            text-transform: uppercase;
            color: var(--accent-dark);
            background: var(--accent-subtle);
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--primary);
            margin-bottom: 10px;
            line-height: 1.25;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.65;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 1.65rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }
        }

        /* Hero */
        .hero-download {
            position: relative;
            background: var(--bg-dark);
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 520px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-download::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(160deg, rgba(26, 26, 46, 0.88) 0%, rgba(26, 26, 46, 0.72) 50%, rgba(26, 26, 46, 0.82) 100%);
            z-index: 1;
        }

        .hero-download .container {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 20px;
            padding-top: 40px;
            padding-bottom: 40px;
        }

        .hero-download .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(201, 169, 110, 0.18);
            border: 1px solid rgba(201, 169, 110, 0.35);
            color: var(--accent-light);
            font-size: 0.85rem;
            font-weight: 500;
            padding: 6px 16px;
            border-radius: 20px;
            letter-spacing: 0.04em;
        }

        .hero-download .hero-badge .dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent);
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                box-shadow: 0 0 0 0 rgba(201, 169, 110, 0.6);
            }
            50% {
                opacity: 0.5;
                box-shadow: 0 0 0 10px rgba(201, 169, 110, 0);
            }
        }

        .hero-download h1 {
            font-size: 3rem;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: 0.03em;
            line-height: 1.2;
            max-width: 700px;
        }

        .hero-download h1 span {
            color: var(--accent-light);
        }

        .hero-download .hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            line-height: 1.7;
        }

        .hero-download .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 8px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: 28px;
            letter-spacing: 0.03em;
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(201, 169, 110, 0.3);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(201, 169, 110, 0.42);
            color: #fff;
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.45);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.75);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-lg {
            padding: 16px 34px;
            font-size: 1.05rem;
            border-radius: 32px;
        }

        @media (max-width: 768px) {
            .hero-download {
                min-height: 420px;
            }
            .hero-download h1 {
                font-size: 2rem;
            }
            .hero-download .hero-desc {
                font-size: 0.95rem;
            }
            .hero-download .hero-btns {
                gap: 10px;
            }
            .btn {
                padding: 11px 22px;
                font-size: 0.9rem;
            }
            .btn-lg {
                padding: 14px 26px;
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .hero-download {
                min-height: 360px;
            }
            .hero-download h1 {
                font-size: 1.55rem;
            }
            .hero-download .hero-desc {
                font-size: 0.88rem;
            }
        }

        /* Stats Bar */
        .stats-bar {
            background: var(--surface);
            border-bottom: 1px solid var(--border-light);
            padding: 22px 0;
        }

        .stats-bar .container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 36px;
        }

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

        .stat-item .stat-num {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.02em;
            line-height: 1;
        }

        .stat-item .stat-num .unit {
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--accent-dark);
            margin-left: 2px;
        }

        .stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            letter-spacing: 0.03em;
        }

        .stat-divider {
            width: 1px;
            height: 32px;
            background: var(--border);
            align-self: center;
            flex-shrink: 0;
        }

        @media (max-width: 768px) {
            .stats-bar .container {
                gap: 20px;
            }
            .stat-item .stat-num {
                font-size: 1.3rem;
            }
            .stat-divider {
                display: none;
            }
        }

        /* Platform Cards */
        .platform-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }

        .platform-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 22px 24px;
            text-align: center;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 14px;
            position: relative;
            overflow: hidden;
        }

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

        .platform-card.featured {
            border-color: var(--accent);
            box-shadow: var(--shadow);
        }

        .platform-card.featured::before {
            content: '推荐';
            position: absolute;
            top: 14px;
            right: -28px;
            background: var(--accent);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 3px 32px;
            transform: rotate(45deg);
            letter-spacing: 0.05em;
            z-index: 1;
        }

        .platform-card .platform-icon {
            width: 62px;
            height: 62px;
            border-radius: var(--radius);
            background: var(--bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            flex-shrink: 0;
            transition: background var(--transition);
        }

        .platform-card:hover .platform-icon {
            background: var(--accent-subtle);
        }

        .platform-card .platform-icon img {
            width: 40px;
            height: 40px;
            object-fit: contain;
            border-radius: 6px;
        }

        .platform-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.02em;
        }

        .platform-card .version-info {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .platform-card .file-size {
            display: inline-block;
            background: var(--bg-alt);
            padding: 4px 12px;
            border-radius: 12px;
            font-size: 0.78rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .platform-card .btn {
            width: 100%;
            justify-content: center;
            margin-top: auto;
        }

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

        @media (max-width: 520px) {
            .platform-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* Highlights */
        .highlights-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .highlight-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 26px 22px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            transition: all var(--transition);
        }

        .highlight-card:hover {
            box-shadow: var(--shadow);
            border-color: var(--border-accent);
            transform: translateY(-2px);
        }

        .highlight-card .hl-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: var(--accent-subtle);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            flex-shrink: 0;
        }

        .highlight-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.02em;
        }

        .highlight-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .highlights-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* Steps */
        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
            max-width: 800px;
            margin: 0 auto;
        }

        .step-item {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 22px 24px;
            transition: all var(--transition);
        }

        .step-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--border-accent);
        }

        .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            letter-spacing: 0;
        }

        .step-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
            letter-spacing: 0.02em;
        }

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

        @media (max-width: 520px) {
            .step-item {
                flex-direction: column;
                gap: 10px;
                padding: 18px;
            }
            .step-num {
                width: 36px;
                height: 36px;
                font-size: 0.95rem;
            }
        }

        /* Requirements Table */
        .req-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
        }

        .req-table {
            width: 100%;
            min-width: 600px;
            border-collapse: collapse;
            background: var(--surface);
            font-size: 0.93rem;
        }

        .req-table thead th {
            background: var(--bg-dark);
            color: #fff;
            padding: 14px 18px;
            text-align: left;
            font-weight: 600;
            letter-spacing: 0.03em;
            font-size: 0.85rem;
            white-space: nowrap;
        }

        .req-table tbody td {
            padding: 13px 18px;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-secondary);
            white-space: nowrap;
        }

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

        .req-table tbody tr:hover {
            background: var(--bg-alt);
        }

        .req-table .os-tag {
            display: inline-block;
            font-weight: 600;
            color: var(--primary);
            background: var(--accent-subtle);
            padding: 3px 10px;
            border-radius: 10px;
            font-size: 0.82rem;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
        }

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

        .faq-q {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.02em;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            cursor: pointer;
            background: none;
            border: none;
            font-family: inherit;
            transition: color var(--transition);
        }

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

        .faq-q .faq-arrow {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            transition: transform var(--transition);
            color: var(--text-muted);
            font-size: 0.8rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }

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

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

        .faq-item.open .faq-a {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        .faq-a p {
            font-size: 0.93rem;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* CTA Section */
        .cta-section {
            background: var(--bg-dark);
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 46, 0.9) 0%, rgba(26, 26, 46, 0.78) 100%);
            z-index: 1;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 60px 28px;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.03em;
            margin-bottom: 10px;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.78);
            max-width: 500px;
            margin: 0 auto 24px;
        }

        .cta-section .btn {
            font-size: 1.05rem;
            padding: 15px 36px;
            border-radius: 30px;
        }

        @media (max-width: 768px) {
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section p {
                font-size: 0.93rem;
            }
        }

        /* Footer */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.8);
            padding: 50px 0 24px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }

        .footer-brand h3 {
            color: #fff;
            font-size: 1.3rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 14px;
        }

        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            padding: 5px 0;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 18px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
            letter-spacing: 0.03em;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }
        }

        /* Utility */
        .text-center {
            text-align: center;
        }
        .mt-sm {
            margin-top: 12px;
        }
        .mt-md {
            margin-top: 20px;
        }
        .mt-lg {
            margin-top: 32px;
        }
        .mb-sm {
            margin-bottom: 12px;
        }
        .mb-md {
            margin-bottom: 20px;
        }
        .mb-lg {
            margin-bottom: 32px;
        }

        /* Divider */
        .divider {
            width: 50px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
            margin: 0 auto;
        }

        /* Image card */
        .img-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }

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

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

        @media (max-width: 768px) {
            .img-card img {
                height: 160px;
            }
        }

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

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition-duration: 0.01ms !important;
                animation-duration: 0.01ms !important;
            }
            html {
                scroll-behavior: auto;
            }
        }