/* roulang page: index */
:root {
            --brand-dark: #1B3B2F;
            --brand-dark-2: #142C23;
            --brand-gold: #C9A96E;
            --brand-gold-hover: #B8944E;
            --brand-bg: #F8F5F0;
            --brand-card: #FFFFFF;
            --brand-card-warm: #FDFCF9;
            --brand-text: #24302A;
            --brand-text-secondary: #6B7A72;
            --brand-accent: #7A4A3B;
            --brand-border: rgba(27, 59, 47, 0.08);
            --brand-border-gold: rgba(201, 169, 110, 0.4);
            --brand-shadow-sm: 0 2px 8px rgba(27, 59, 47, 0.06);
            --brand-shadow-lg: 0 12px 24px rgba(27, 59, 47, 0.12);
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-img: 12px;
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'STZhongsong', 'SimSun', serif;
            --font-sans: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --spacing-section: 80px;
            --spacing-section-mobile: 48px;
            --transition: all 0.25s ease;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.9;
            color: var(--brand-text);
            background-color: var(--brand-bg);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover {
            color: var(--brand-gold-hover);
        }

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

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

        .skip-link {
            position: absolute;
            top: -60px;
            left: 16px;
            z-index: 9999;
            background: var(--brand-dark);
            color: #fff;
            padding: 10px 18px;
            border-radius: 8px;
            font-size: 14px;
            transition: top 0.2s ease;
        }

        .skip-link:focus {
            top: 16px;
            color: #fff;
        }

        .container {
            max-width: 1200px;
        }

        @media (min-width: 1280px) {
            .container {
                max-width: 1200px;
            }
        }

        @media (max-width: 576px) {
            body {
                font-size: 15px;
                line-height: 1.85;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        .section-padding {
            padding-top: var(--spacing-section);
            padding-bottom: var(--spacing-section);
        }

        @media (max-width: 768px) {
            .section-padding {
                padding-top: var(--spacing-section-mobile);
                padding-bottom: var(--spacing-section-mobile);
            }
        }

        .section-subtitle {
            font-size: 0.9rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--brand-gold);
            margin-bottom: 12px;
            display: block;
        }

        .section-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 2rem;
            color: var(--brand-dark);
            margin-bottom: 20px;
            line-height: 1.4;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 1.4rem;
            }
        }

        .section-description {
            font-size: 1rem;
            color: var(--brand-text-secondary);
            line-height: 1.9;
            max-width: 720px;
            margin-bottom: 32px;
        }

        .bg-brand-dark {
            background-color: var(--brand-dark);
            color: #fff;
        }

        .bg-brand-dark .section-title {
            color: #fff;
        }

        .bg-brand-dark .section-description {
            color: rgba(255, 255, 255, 0.78);
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background-color: rgba(27, 59, 47, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(201, 169, 110, 0.15);
            transition: box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
        }

        .navbar {
            padding: 12px 0;
        }

        .navbar-brand {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--brand-gold) !important;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 0.02em;
        }

        .navbar-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--brand-gold);
            color: var(--brand-dark);
            border-radius: 8px;
            font-size: 1rem;
        }

        .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.82);
            font-size: 0.9rem;
            font-weight: 500;
            padding: 8px 14px !important;
            margin: 0 4px;
            border-radius: 6px;
            position: relative;
            transition: var(--transition);
            letter-spacing: 0.02em;
        }

        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link:focus {
            color: var(--brand-gold);
        }

        .navbar-nav .nav-link.active {
            color: var(--brand-gold);
        }

        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--brand-gold);
            border-radius: 2px;
        }

        .nav-cta-btn {
            background-color: var(--brand-gold);
            color: var(--brand-dark) !important;
            font-weight: 600;
            font-size: 0.85rem;
            padding: 9px 20px !important;
            border-radius: var(--radius-btn);
            border: none;
            transition: var(--transition);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .nav-cta-btn:hover {
            background-color: var(--brand-gold-hover);
            color: var(--brand-dark) !important;
            box-shadow: 0 4px 12px rgba(201, 169, 110, 0.35);
        }

        .navbar-toggler {
            border: 1px solid rgba(201, 169, 110, 0.4);
            background: transparent;
            color: var(--brand-gold);
            font-size: 1.2rem;
            padding: 6px 12px;
            border-radius: 8px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(201, 169, 110, 0.3);
        }

        @media (max-width: 991px) {
            .navbar-collapse {
                background: rgba(27, 59, 47, 0.98);
                border-radius: 12px;
                padding: 16px;
                margin-top: 8px;
                border: 1px solid rgba(201, 169, 110, 0.2);
            }
            .navbar-nav .nav-link {
                padding: 10px 14px !important;
                margin: 4px 0;
                font-size: 1rem;
            }
            .navbar-nav .nav-link.active::after {
                bottom: 4px;
                left: 14px;
                right: 14px;
            }
            .nav-cta-btn {
                display: block;
                text-align: center;
                margin-top: 12px;
                font-size: 1rem;
                padding: 12px 20px !important;
            }
        }

        @media (max-width: 576px) {
            .navbar-brand {
                font-size: 1.2rem;
            }
            .navbar {
                padding: 10px 0;
            }
        }

        /* ============ HERO ============ */
        .hero-section {
            padding-top: 120px;
            padding-bottom: 64px;
            background-color: var(--brand-dark);
            background-image: linear-gradient(165deg, #1B3B2F 0%, #142C23 65%, #0F211A 100%);
            position: relative;
            overflow: hidden;
            min-height: 70vh;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(201, 169, 110, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(201, 169, 110, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .hero-h1 {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 2.6rem;
            color: #fff;
            line-height: 1.35;
            margin-bottom: 20px;
            letter-spacing: 0.01em;
        }

        .hero-h1 .highlight {
            color: var(--brand-gold);
        }

        .hero-desc {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.95;
            max-width: 560px;
            margin-bottom: 28px;
        }

        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }

        .btn-gold {
            background-color: var(--brand-gold);
            color: var(--brand-dark);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: none;
            transition: var(--transition);
            letter-spacing: 0.02em;
        }

        .btn-gold:hover {
            background-color: var(--brand-gold-hover);
            color: var(--brand-dark);
            box-shadow: 0 8px 20px rgba(201, 169, 110, 0.4);
            transform: translateY(-1px);
        }

        .btn-outline-gold {
            background: transparent;
            color: var(--brand-gold);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 11px 26px;
            border-radius: var(--radius-btn);
            border: 1.5px solid rgba(201, 169, 110, 0.6);
            transition: var(--transition);
            letter-spacing: 0.02em;
        }

        .btn-outline-gold:hover {
            background: rgba(201, 169, 110, 0.1);
            color: var(--brand-gold);
            border-color: var(--brand-gold);
        }

        .hero-side {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-compare-cards {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            justify-content: center;
            width: 100%;
        }

        .hero-game-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            width: 160px;
            transition: var(--transition);
            cursor: default;
        }

        .hero-game-card .game-icon {
            font-size: 2.2rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 12px;
        }

        .hero-game-card .game-name {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
        }

        .hero-game-card.recommended {
            background: rgba(201, 169, 110, 0.12);
            border: 1.5px solid var(--brand-gold);
            transform: scale(1.04);
            box-shadow: 0 8px 24px rgba(201, 169, 110, 0.2);
        }

        .hero-game-card.recommended .game-icon {
            color: var(--brand-gold);
        }

        .hero-game-card.recommended .game-name {
            color: var(--brand-gold);
            font-weight: 600;
        }

        .hero-game-card .badge-recommend {
            display: inline-block;
            background: var(--brand-gold);
            color: var(--brand-dark);
            font-size: 0.7rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 20px;
            margin-top: 8px;
            letter-spacing: 0.04em;
        }

        .hero-data-row {
            display: flex;
            gap: 24px;
            margin-top: 12px;
            flex-wrap: wrap;
        }

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

        .hero-data-item .data-number {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--brand-gold);
            display: block;
        }

        .hero-data-item .data-label {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.55);
            letter-spacing: 0.04em;
        }

        @media (max-width: 991px) {
            .hero-section {
                padding-top: 100px;
                padding-bottom: 48px;
                min-height: auto;
            }
            .hero-h1 {
                font-size: 2rem;
            }
            .hero-side {
                margin-top: 32px;
            }
            .hero-compare-cards {
                gap: 10px;
            }
            .hero-game-card {
                width: 130px;
                padding: 18px 14px;
            }
            .hero-game-card .game-icon {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 576px) {
            .hero-h1 {
                font-size: 1.4rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .btn-gold,
            .btn-outline-gold {
                font-size: 0.85rem;
                padding: 10px 20px;
                width: 100%;
                text-align: center;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .hero-compare-cards {
                flex-direction: column;
                align-items: center;
            }
            .hero-game-card {
                width: 100%;
                max-width: 240px;
            }
            .hero-data-row {
                gap: 16px;
                justify-content: center;
            }
            .hero-data-item .data-number {
                font-size: 1.2rem;
            }
        }

        /* ============ CARDS & COMPONENTS ============ */
        .card-elegant {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--radius-card);
            box-shadow: var(--brand-shadow-sm);
            padding: 28px 24px;
            height: 100%;
            transition: var(--transition);
        }

        .card-elegant:hover {
            box-shadow: var(--brand-shadow-lg);
            border-color: var(--brand-border-gold);
            transform: translateY(-2px);
        }

        .card-elegant .card-icon {
            width: 48px;
            height: 48px;
            background: rgba(201, 169, 110, 0.12);
            color: var(--brand-gold);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 16px;
        }

        .card-elegant .card-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--brand-dark);
            margin-bottom: 10px;
        }

        .card-elegant .card-text {
            font-size: 0.9rem;
            color: var(--brand-text-secondary);
            line-height: 1.85;
            margin-bottom: 0;
        }

        .card-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            background: var(--brand-card-warm);
            border: 1px solid var(--brand-border);
            box-shadow: var(--brand-shadow-sm);
            transition: var(--transition);
            height: 100%;
        }

        .card-image:hover {
            box-shadow: var(--brand-shadow-lg);
            border-color: var(--brand-border-gold);
            transform: translateY(-2px);
        }

        .card-image img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }

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

        .card-image .card-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--brand-dark);
            margin-bottom: 8px;
        }

        .card-image .card-text {
            font-size: 0.88rem;
            color: var(--brand-text-secondary);
            line-height: 1.8;
            margin-bottom: 8px;
        }

        .card-image .card-meta {
            font-size: 0.75rem;
            color: var(--brand-gold);
            font-weight: 500;
            letter-spacing: 0.03em;
        }

        .tag-badge {
            display: inline-block;
            background: rgba(201, 169, 110, 0.12);
            color: var(--brand-gold);
            font-size: 0.75rem;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.03em;
            margin-right: 6px;
            margin-bottom: 6px;
        }

        .accent-badge {
            display: inline-block;
            background: rgba(122, 74, 59, 0.1);
            color: var(--brand-accent);
            font-size: 0.75rem;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.03em;
        }

        /* ============ STEP CARDS ============ */
        .step-card {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            height: 100%;
            text-align: center;
            transition: var(--transition);
            position: relative;
        }

        .step-card:hover {
            box-shadow: var(--brand-shadow-lg);
            border-color: var(--brand-border-gold);
        }

        .step-number {
            width: 48px;
            height: 48px;
            background: var(--brand-gold);
            color: var(--brand-dark);
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.3rem;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            letter-spacing: 0;
        }

        .step-card .step-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--brand-dark);
            margin-bottom: 8px;
        }

        .step-card .step-text {
            font-size: 0.88rem;
            color: var(--brand-text-secondary);
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* ============ TESTIMONIAL ============ */
        .testimonial-card {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            height: 100%;
            transition: var(--transition);
            position: relative;
        }

        .testimonial-card:hover {
            box-shadow: var(--brand-shadow-lg);
            border-color: var(--brand-border-gold);
        }

        .testimonial-stars {
            color: var(--brand-gold);
            font-size: 0.85rem;
            margin-bottom: 14px;
            letter-spacing: 2px;
        }

        .testimonial-quote {
            font-size: 0.92rem;
            color: var(--brand-text);
            line-height: 1.85;
            margin-bottom: 16px;
            font-style: italic;
        }

        .testimonial-author {
            font-size: 0.8rem;
            color: var(--brand-text-secondary);
            font-weight: 500;
            letter-spacing: 0.03em;
        }

        /* ============ DATA STAT ============ */
        .stat-block {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--radius-card);
            padding: 28px 20px;
            text-align: center;
            height: 100%;
            transition: var(--transition);
        }

        .stat-block:hover {
            box-shadow: var(--brand-shadow-lg);
            border-color: var(--brand-border-gold);
        }

        .stat-number {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 2.2rem;
            color: var(--brand-dark);
            line-height: 1.2;
            display: block;
            margin-bottom: 8px;
        }

        .stat-number .unit {
            font-size: 1rem;
            color: var(--brand-gold);
        }

        .stat-label {
            font-size: 0.82rem;
            color: var(--brand-text-secondary);
            line-height: 1.5;
        }

        /* ============ TIMELINE ============ */
        .timeline-item {
            position: relative;
            padding-left: 32px;
            padding-bottom: 28px;
            border-left: 2px solid rgba(201, 169, 110, 0.3);
            margin-left: 8px;
        }

        .timeline-item:last-child {
            border-left-color: transparent;
            padding-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -7px;
            top: 4px;
            width: 12px;
            height: 12px;
            background: var(--brand-gold);
            border-radius: 50%;
            border: 2px solid #fff;
            box-shadow: 0 0 0 3px rgba(201, 169, 110, 0.2);
        }

        .timeline-version {
            font-size: 0.8rem;
            color: var(--brand-gold);
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 4px;
        }

        .timeline-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--brand-dark);
            margin-bottom: 6px;
        }

        .timeline-text {
            font-size: 0.88rem;
            color: var(--brand-text-secondary);
            line-height: 1.8;
        }

        /* ============ FAQ ============ */
        .faq-accordion .accordion-item {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--radius-card) !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--brand-shadow-sm);
        }

        .faq-accordion .accordion-header {
            margin: 0;
        }

        .faq-accordion .accordion-button {
            background: var(--brand-card-warm);
            color: var(--brand-dark);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 18px 22px;
            border: none;
            box-shadow: none;
            border-radius: var(--radius-card) !important;
            transition: var(--transition);
            line-height: 1.6;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: rgba(201, 169, 110, 0.06);
            color: var(--brand-dark);
            box-shadow: none;
            border-left: 3px solid var(--brand-gold);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--brand-gold);
            outline-offset: -2px;
        }

        .faq-accordion .accordion-button::after {
            filter: brightness(0) saturate(100%) invert(60%) sepia(40%) saturate(300%) hue-rotate(10deg);
            background-size: 1rem;
            width: 1rem;
            height: 1rem;
        }

        .faq-accordion .accordion-body {
            font-size: 0.9rem;
            color: var(--brand-text-secondary);
            line-height: 1.85;
            padding: 18px 22px 22px;
            background: var(--brand-card);
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            background: var(--brand-dark);
            background-image: linear-gradient(150deg, #1B3B2F 0%, #142C23 60%, #0F211A 100%);
            padding: 64px 0;
            text-align: center;
        }

        .cta-section .cta-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.8rem;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .cta-section .cta-desc {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 520px;
            margin: 0 auto 24px;
            line-height: 1.85;
        }

        .cta-section .cta-note {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 16px;
            letter-spacing: 0.03em;
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 48px 0;
            }
            .cta-section .cta-title {
                font-size: 1.3rem;
            }
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background-color: var(--brand-dark-2);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 32px;
            border-top: 1px solid rgba(201, 169, 110, 0.15);
        }

        .footer-brand {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--brand-gold);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            background: var(--brand-gold);
            color: var(--brand-dark);
            border-radius: 6px;
            font-size: 0.9rem;
        }

        .footer-text {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            margin-bottom: 8px;
        }

        .footer-heading {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--brand-gold);
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }

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

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 32px;
            padding-top: 20px;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.45);
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
            justify-content: space-between;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.78rem;
        }

        .footer-bottom a:hover {
            color: var(--brand-gold);
        }

        @media (max-width: 768px) {
            .site-footer {
                padding: 32px 0 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 12px;
            }
        }

        /* ============ IMAGE PLACEHOLDER ============ */
        .img-placeholder {
            background: var(--brand-card-warm);
            border: 1px dashed var(--brand-border-gold);
            border-radius: var(--radius-img);
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 180px;
            color: var(--brand-text-secondary);
            font-size: 0.85rem;
            letter-spacing: 0.04em;
        }

        /* ============ MISC ============ */
        .divider-gold {
            width: 60px;
            height: 3px;
            background: var(--brand-gold);
            border-radius: 3px;
            margin: 12px 0 20px;
        }

        .gold-border-start {
            border-left: 3px solid var(--brand-gold);
            padding-left: 20px;
        }

        .text-gold {
            color: var(--brand-gold) !important;
        }

        .bg-warm-light {
            background: var(--brand-card-warm);
        }

        .mb-6 {
            margin-bottom: 48px;
        }

        .mt-6 {
            margin-top: 48px;
        }

        @media (max-width: 768px) {
            .mb-6 {
                margin-bottom: 32px;
            }
            .mt-6 {
                margin-top: 32px;
            }
        }

/* roulang page: category2 */
:root {
            --brand-dark: #1B3B2F;
            --brand-dark-2: #142C23;
            --brand-gold: #C9A96E;
            --brand-gold-hover: #B8944E;
            --brand-bg: #F8F5F0;
            --brand-card: #FFFFFF;
            --brand-card-warm: #FDFCF9;
            --brand-text: #24302A;
            --brand-text-secondary: #6B7A72;
            --brand-accent: #7A4A3B;
            --brand-border: rgba(27, 59, 47, 0.08);
            --brand-border-gold: rgba(201, 169, 110, 0.4);
            --brand-shadow-sm: 0 2px 8px rgba(27, 59, 47, 0.06);
            --brand-shadow-lg: 0 12px 24px rgba(27, 59, 47, 0.12);
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-img: 12px;
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'STZhongsong', 'SimSun', serif;
            --font-sans: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --spacing-section: 80px;
            --spacing-section-mobile: 48px;
            --transition: all 0.25s ease;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.9;
            color: var(--brand-text);
            background-color: var(--brand-bg);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: 72px;
        }

        a {
            color: var(--brand-gold);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--brand-gold-hover);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--brand-gold);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        .container {
            max-width: 1200px;
            padding-left: 16px;
            padding-right: 16px;
        }

        .section-padding {
            padding-top: var(--spacing-section);
            padding-bottom: var(--spacing-section);
        }

        .section-subtitle {
            font-size: 0.9rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--brand-gold);
            margin-bottom: 12px;
            display: block;
        }

        .section-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 2rem;
            color: var(--brand-dark);
            margin-bottom: 20px;
            line-height: 1.4;
        }

        .section-description {
            font-size: 1rem;
            color: var(--brand-text-secondary);
            line-height: 1.9;
            max-width: 720px;
            margin-bottom: 32px;
        }

        .bg-brand-dark {
            background-color: var(--brand-dark);
            color: #fff;
        }
        .bg-brand-dark .section-title {
            color: #fff;
        }
        .bg-brand-dark .section-description {
            color: rgba(255, 255, 255, 0.78);
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background-color: rgba(27, 59, 47, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(201, 169, 110, 0.15);
            transition: box-shadow 0.3s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
        }
        .navbar {
            padding: 12px 0;
        }
        .navbar-brand {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--brand-gold) !important;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 0.02em;
        }
        .navbar-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--brand-gold);
            color: var(--brand-dark);
            border-radius: 8px;
            font-size: 1rem;
        }
        .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.82);
            font-size: 0.9rem;
            font-weight: 500;
            padding: 8px 14px !important;
            margin: 0 4px;
            border-radius: 6px;
            position: relative;
            transition: var(--transition);
            letter-spacing: 0.02em;
        }
        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link:focus {
            color: var(--brand-gold);
        }
        .navbar-nav .nav-link.active {
            color: var(--brand-gold);
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--brand-gold);
            border-radius: 2px;
        }
        .nav-cta-btn {
            background-color: var(--brand-gold);
            color: var(--brand-dark) !important;
            font-weight: 600;
            font-size: 0.85rem;
            padding: 9px 20px !important;
            border-radius: var(--radius-btn);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-cta-btn:hover {
            background-color: var(--brand-gold-hover);
            color: var(--brand-dark) !important;
            box-shadow: 0 4px 12px rgba(201, 169, 110, 0.35);
        }
        .navbar-toggler {
            border: 1px solid rgba(201, 169, 110, 0.4);
            color: var(--brand-gold);
            padding: 6px 10px;
            border-radius: 8px;
            background: transparent;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(201, 169, 110, 0.25);
            outline: none;
        }
        .navbar-toggler i {
            font-size: 1.2rem;
            color: var(--brand-gold);
        }

        /* ============ BREADCRUMB ============ */
        .breadcrumb-section {
            background-color: var(--brand-bg);
            padding: 20px 0 0;
            margin-bottom: 0;
        }
        .breadcrumb {
            margin: 0;
            padding: 10px 16px;
            background: var(--brand-card);
            border-radius: 8px;
            border: 1px solid var(--brand-border);
            font-size: 0.85rem;
        }
        .breadcrumb-item a {
            color: var(--brand-text-secondary);
            transition: var(--transition);
        }
        .breadcrumb-item a:hover {
            color: var(--brand-gold);
        }
        .breadcrumb-item.active {
            color: var(--brand-gold);
            font-weight: 500;
        }
        .breadcrumb-item + .breadcrumb-item::before {
            color: var(--brand-text-secondary);
            content: "›";
            font-size: 1rem;
            line-height: 1;
        }

        /* ============ CATEGORY H1 SECTION ============ */
        .category-hero {
            padding: 40px 0 48px;
            background: linear-gradient(135deg, var(--brand-bg) 0%, var(--brand-card-warm) 50%, var(--brand-bg) 100%);
        }
        .category-hero .h1-wrap {
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: wrap;
        }
        .category-hero .h1-text {
            flex: 1 1 420px;
        }
        .category-hero .h1-text h1 {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 2.6rem;
            color: var(--brand-dark);
            margin-bottom: 20px;
            line-height: 1.35;
            letter-spacing: 0.02em;
        }
        .category-hero .h1-text .hero-desc {
            font-size: 1.05rem;
            color: var(--brand-text-secondary);
            line-height: 1.95;
            margin-bottom: 0;
        }
        .category-hero .h1-image {
            flex: 0 0 320px;
            max-width: 320px;
        }
        .category-hero .h1-image img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: var(--radius-card);
            box-shadow: var(--brand-shadow-lg);
            border: 1px solid var(--brand-border-gold);
        }

        /* ============ DATA STRIP ============ */
        .data-strip {
            background: var(--brand-card);
            border-top: 1px solid var(--brand-border);
            border-bottom: 1px solid var(--brand-border);
            padding: 28px 0;
        }
        .data-strip .data-item {
            text-align: center;
            padding: 12px 16px;
        }
        .data-strip .data-number {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 2rem;
            color: var(--brand-dark);
            display: block;
            line-height: 1.3;
        }
        .data-strip .data-number .gold {
            color: var(--brand-gold);
        }
        .data-strip .data-label {
            font-size: 0.85rem;
            color: var(--brand-text-secondary);
            display: block;
            margin-top: 4px;
            letter-spacing: 0.02em;
        }

        /* ============ RULE CARDS GRID ============ */
        .rules-grid-section {
            padding: 64px 0;
            background-color: var(--brand-bg);
        }
        .rules-grid-section .section-header {
            margin-bottom: 40px;
        }
        .rule-card {
            background: var(--brand-card);
            border-radius: var(--radius-card);
            box-shadow: var(--brand-shadow-sm);
            overflow: hidden;
            height: 100%;
            border: 1px solid var(--brand-border);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .rule-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--brand-shadow-lg);
            border-color: var(--brand-border-gold);
        }
        .rule-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            height: 180px;
            background: var(--brand-card-warm);
        }
        .rule-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.4s ease;
        }
        .rule-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .rule-card .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--brand-gold);
            color: var(--brand-dark);
            font-size: 0.72rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 20px;
            letter-spacing: 0.04em;
            z-index: 2;
        }
        .rule-card .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .rule-card .card-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--brand-dark);
            margin-bottom: 10px;
            line-height: 1.5;
            transition: var(--transition);
        }
        .rule-card:hover .card-title {
            color: var(--brand-gold-hover);
        }
        .rule-card .card-text {
            font-size: 0.9rem;
            color: var(--brand-text-secondary);
            line-height: 1.85;
            flex: 1;
            margin-bottom: 14px;
        }
        .rule-card .card-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.78rem;
            color: var(--brand-text-secondary);
            border-top: 1px solid var(--brand-border);
            padding-top: 12px;
        }
        .rule-card .card-meta i {
            color: var(--brand-gold);
            font-size: 0.75rem;
        }

        /* ============ TIPS BAR ============ */
        .tips-bar-section {
            padding: 48px 0;
            background: var(--brand-card-warm);
        }
        .tips-bar {
            background: var(--brand-card);
            border-left: 4px solid var(--brand-gold);
            border-radius: 0 12px 12px 0;
            padding: 28px 32px;
            box-shadow: var(--brand-shadow-sm);
        }
        .tips-bar h2 {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--brand-dark);
            margin-bottom: 14px;
        }
        .tips-bar p {
            color: var(--brand-text-secondary);
            font-size: 0.95rem;
            line-height: 1.9;
            margin-bottom: 0;
        }

        /* ============ KNOWLEDGE SECTION ============ */
        .knowledge-section {
            padding: 64px 0;
            background: var(--brand-bg);
        }
        .knowledge-section .section-header {
            margin-bottom: 32px;
        }
        .knowledge-card {
            background: var(--brand-card);
            border-radius: var(--radius-card);
            padding: 22px 24px;
            border: 1px solid var(--brand-border);
            box-shadow: var(--brand-shadow-sm);
            height: 100%;
            transition: var(--transition);
        }
        .knowledge-card:hover {
            border-color: var(--brand-border-gold);
            box-shadow: var(--brand-shadow-lg);
        }
        .knowledge-card h3 {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--brand-dark);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .knowledge-card h3 i {
            color: var(--brand-gold);
            font-size: 0.9rem;
        }
        .knowledge-card p {
            font-size: 0.88rem;
            color: var(--brand-text-secondary);
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* ============ VIEW MORE ============ */
        .view-more-section {
            padding: 24px 0 48px;
            background: var(--brand-bg);
            text-align: center;
        }
        .view-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--brand-gold);
            background: transparent;
            border: 1px solid var(--brand-border-gold);
            padding: 10px 28px;
            border-radius: var(--radius-btn);
            transition: var(--transition);
            text-decoration: none;
        }
        .view-more-btn:hover {
            background: var(--brand-gold);
            color: var(--brand-dark);
            border-color: var(--brand-gold);
        }
        .view-more-btn i {
            font-size: 0.85rem;
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            background: var(--brand-dark);
            color: #fff;
            padding: 72px 0;
            text-align: center;
        }
        .cta-section h2 {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 2rem;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.78);
            font-size: 1rem;
            line-height: 1.9;
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-gold);
            color: var(--brand-dark) !important;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            transition: var(--transition);
        }
        .cta-btn:hover {
            background: var(--brand-gold-hover);
            box-shadow: 0 6px 20px rgba(201, 169, 110, 0.4);
        }
        .cta-section .cta-note {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 16px;
            letter-spacing: 0.03em;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--brand-dark-2);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 32px;
            border-top: 1px solid rgba(201, 169, 110, 0.15);
        }
        .footer-brand {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--brand-gold);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }
        .footer-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            background: var(--brand-gold);
            color: var(--brand-dark);
            border-radius: 8px;
            font-size: 0.9rem;
        }
        .footer-text {
            font-size: 0.88rem;
            line-height: 1.85;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 10px;
        }
        .footer-heading {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1rem;
            color: var(--brand-gold);
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.88rem;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--brand-gold);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .footer-bottom {
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid rgba(201, 169, 110, 0.15);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            transition: var(--transition);
        }
        .footer-bottom a:hover {
            color: var(--brand-gold);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 991px) {
            .category-hero .h1-text h1 {
                font-size: 2rem;
            }
            .category-hero .h1-image {
                flex: 0 0 260px;
                max-width: 260px;
            }
            .category-hero .h1-image img {
                height: 170px;
            }
            .section-title {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 767px) {
            body {
                padding-top: 62px;
            }
            .category-hero {
                padding: 28px 0 36px;
            }
            .category-hero .h1-wrap {
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
            }
            .category-hero .h1-text h1 {
                font-size: 1.7rem;
            }
            .category-hero .h1-text .hero-desc {
                font-size: 0.95rem;
            }
            .category-hero .h1-image {
                flex: 1 1 auto;
                max-width: 100%;
                width: 100%;
            }
            .category-hero .h1-image img {
                height: 160px;
                width: 100%;
            }
            .section-padding,
            .rules-grid-section,
            .knowledge-section {
                padding-top: 48px;
                padding-bottom: 48px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .data-strip .data-number {
                font-size: 1.5rem;
            }
            .tips-bar {
                padding: 20px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .navbar-nav {
                padding: 16px 0;
            }
            .navbar-nav .nav-link {
                padding: 10px 16px !important;
                display: block;
            }
            .navbar-nav .nav-link.active::after {
                display: none;
            }
            .nav-cta-btn {
                margin-top: 12px;
                justify-content: center;
                width: 100%;
            }
            .rule-card .card-img-wrap {
                height: 160px;
            }
        }
        @media (max-width: 520px) {
            .category-hero .h1-text h1 {
                font-size: 1.45rem;
            }
            .rule-card .card-img-wrap {
                height: 140px;
            }
            .cta-btn {
                padding: 10px 24px;
                font-size: 0.88rem;
            }
        }

/* roulang page: category1 */
:root {
            --brand-dark: #1B3B2F;
            --brand-dark-2: #142C23;
            --brand-gold: #C9A96E;
            --brand-gold-hover: #B8944E;
            --brand-bg: #F8F5F0;
            --brand-card: #FFFFFF;
            --brand-card-warm: #FDFCF9;
            --brand-text: #24302A;
            --brand-text-secondary: #6B7A72;
            --brand-accent: #7A4A3B;
            --brand-border: rgba(27, 59, 47, 0.08);
            --brand-border-gold: rgba(201, 169, 110, 0.4);
            --brand-shadow-sm: 0 2px 8px rgba(27, 59, 47, 0.06);
            --brand-shadow-lg: 0 12px 24px rgba(27, 59, 47, 0.12);
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-img: 12px;
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'STZhongsong', 'SimSun', serif;
            --font-sans: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --spacing-section: 80px;
            --spacing-section-mobile: 48px;
            --transition: all 0.25s ease;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.9;
            color: var(--brand-text);
            background-color: var(--brand-bg);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: 70px;
        }

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

        a:hover {
            color: var(--brand-gold-hover);
        }

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

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

        .container {
            max-width: 1200px;
        }

        .skip-link {
            position: absolute;
            top: -50px;
            left: 16px;
            z-index: 2000;
            background: var(--brand-gold);
            color: var(--brand-dark);
            padding: 10px 18px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: top 0.3s ease;
        }

        .skip-link:focus {
            top: 10px;
            color: var(--brand-dark);
        }

        .section-padding {
            padding-top: var(--spacing-section);
            padding-bottom: var(--spacing-section);
        }

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

        .section-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 2rem;
            color: var(--brand-dark);
            margin-bottom: 18px;
            line-height: 1.4;
        }

        .section-description {
            font-size: 1rem;
            color: var(--brand-text-secondary);
            line-height: 1.9;
            max-width: 720px;
            margin-bottom: 32px;
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background-color: rgba(27, 59, 47, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(201, 169, 110, 0.15);
            transition: box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
        }

        .navbar {
            padding: 10px 0;
        }

        .navbar-brand {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--brand-gold) !important;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 0.02em;
        }

        .navbar-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: var(--brand-gold);
            color: var(--brand-dark);
            border-radius: 8px;
            font-size: 1rem;
        }

        .navbar-toggler {
            border: 1px solid rgba(201, 169, 110, 0.4);
            color: var(--brand-gold);
            padding: 6px 10px;
            font-size: 1.2rem;
            background: transparent;
            border-radius: 6px;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--brand-gold);
        }

        .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.82);
            font-size: 0.9rem;
            font-weight: 500;
            padding: 8px 14px !important;
            margin: 0 4px;
            border-radius: 6px;
            position: relative;
            transition: var(--transition);
            letter-spacing: 0.02em;
        }

        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link:focus {
            color: var(--brand-gold);
        }

        .navbar-nav .nav-link.active {
            color: var(--brand-gold);
        }

        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--brand-gold);
            border-radius: 2px;
        }

        .nav-cta-btn {
            background-color: var(--brand-gold);
            color: var(--brand-dark) !important;
            font-weight: 600;
            font-size: 0.85rem;
            padding: 9px 20px !important;
            border-radius: var(--radius-btn);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
            white-space: nowrap;
            border: none;
        }

        .nav-cta-btn:hover {
            background-color: var(--brand-gold-hover);
            color: var(--brand-dark) !important;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }

        /* ============ BREADCRUMB ============ */
        .breadcrumb-bar {
            background: var(--brand-card-warm);
            border-bottom: 1px solid var(--brand-border);
            padding: 18px 0;
            margin-bottom: 0;
        }

        .breadcrumb {
            margin-bottom: 0;
            font-size: 0.85rem;
            --bs-breadcrumb-divider-color: var(--brand-text-secondary);
        }

        .breadcrumb-item a {
            color: var(--brand-text-secondary);
            font-weight: 500;
        }

        .breadcrumb-item a:hover {
            color: var(--brand-gold);
        }

        .breadcrumb-item.active {
            color: var(--brand-gold);
            font-weight: 600;
        }

        /* ============ CATEGORY H1 HERO ============ */
        .category-hero {
            background: var(--brand-card-warm);
            padding: 56px 0 40px;
            border-bottom: 1px solid var(--brand-border);
        }

        .category-hero .h1 {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 2.2rem;
            color: var(--brand-dark);
            margin-bottom: 16px;
            line-height: 1.35;
        }

        .category-hero .lead {
            font-size: 1rem;
            color: var(--brand-text-secondary);
            line-height: 1.9;
            max-width: 780px;
            margin-bottom: 0;
        }

        .category-hero-img {
            margin-top: 24px;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--brand-shadow-lg);
            border: 2px solid var(--brand-border-gold);
            max-width: 600px;
        }

        /* ============ DATA STRIP ============ */
        .data-strip {
            background: var(--brand-dark);
            padding: 32px 0;
        }

        .data-strip .data-item {
            text-align: center;
            padding: 12px 20px;
        }

        .data-strip .data-num {
            font-family: var(--font-serif);
            font-size: 2rem;
            font-weight: 700;
            color: var(--brand-gold);
            line-height: 1.2;
            display: block;
            margin-bottom: 4px;
        }

        .data-strip .data-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
        }

        /* ============ GUIDE CARDS ============ */
        .guide-grid {
            padding-top: var(--spacing-section);
            padding-bottom: 24px;
        }

        .guide-card {
            background: var(--brand-card);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--brand-shadow-sm);
            border: 1px solid var(--brand-border);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
            margin-bottom: 24px;
        }

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

        .guide-card-img {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
            background: var(--brand-card-warm);
        }

        .guide-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.4s ease;
        }

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

        .guide-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(27, 59, 47, 0.9);
            color: var(--brand-gold);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.03em;
            backdrop-filter: blur(4px);
        }

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

        .guide-card-title {
            font-family: var(--font-serif);
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 8px;
            line-height: 1.5;
            transition: var(--transition);
        }

        .guide-card:hover .guide-card-title {
            color: var(--brand-gold-hover);
        }

        .guide-card-summary {
            font-size: 0.88rem;
            color: var(--brand-text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
            flex: 1;
        }

        .guide-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--brand-text-secondary);
            border-top: 1px solid var(--brand-border);
            padding-top: 12px;
        }

        .guide-card-date {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .guide-card-tag {
            background: var(--brand-bg);
            color: var(--brand-accent);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 14px;
            letter-spacing: 0.02em;
        }

        /* ============ TIP BAR ============ */
        .tip-bar-wrap {
            padding: 32px 0;
        }

        .tip-bar {
            background: var(--brand-card-warm);
            border-left: 4px solid var(--brand-gold);
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
            padding: 24px 28px;
            box-shadow: var(--brand-shadow-sm);
        }

        .tip-bar-title {
            font-weight: 600;
            color: var(--brand-dark);
            font-size: 0.95rem;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .tip-bar-title i {
            color: var(--brand-gold);
            font-size: 1rem;
        }

        .tip-bar-text {
            font-size: 0.92rem;
            color: var(--brand-text-secondary);
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* ============ KNOWLEDGE SECTION ============ */
        .knowledge-section {
            background: var(--brand-card-warm);
            padding-top: var(--spacing-section);
            padding-bottom: var(--spacing-section);
            border-top: 1px solid var(--brand-border);
            border-bottom: 1px solid var(--brand-border);
        }

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

        .knowledge-list li {
            padding: 14px 0;
            border-bottom: 1px solid var(--brand-border);
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 0.92rem;
            color: var(--brand-text-secondary);
            line-height: 1.7;
        }

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

        .knowledge-list li i {
            color: var(--brand-gold);
            font-size: 1rem;
            margin-top: 4px;
            flex-shrink: 0;
        }

        /* ============ VIEW MORE ============ */
        .view-more-bar {
            padding: 28px 0 40px;
            text-align: center;
        }

        .view-more-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--brand-gold);
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            border-bottom: 2px solid var(--brand-border-gold);
            padding-bottom: 4px;
            transition: var(--transition);
        }

        .view-more-link:hover {
            color: var(--brand-gold-hover);
            border-bottom-color: var(--brand-gold-hover);
            gap: 12px;
        }

        /* ============ CATEGORY CTA ============ */
        .category-cta {
            background: var(--brand-dark);
            padding: 56px 0;
            text-align: center;
        }

        .category-cta .section-title {
            color: #fff;
        }

        .category-cta .cta-text {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.95rem;
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-gold-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-gold);
            color: var(--brand-dark) !important;
            font-weight: 600;
            font-size: 1rem;
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            border: none;
            transition: var(--transition);
            letter-spacing: 0.02em;
        }

        .btn-gold-primary:hover {
            background: var(--brand-gold-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
        }

        .btn-gold-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--brand-gold) !important;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 11px 28px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--brand-gold);
            transition: var(--transition);
            letter-spacing: 0.02em;
        }

        .btn-gold-outline:hover {
            background: rgba(201, 169, 110, 0.1);
            transform: translateY(-1px);
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--brand-dark-2);
            color: rgba(255, 255, 255, 0.78);
            padding: 56px 0 32px;
            border-top: 2px solid var(--brand-border-gold);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--brand-gold);
            margin-bottom: 16px;
        }

        .footer-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: var(--brand-gold);
            color: var(--brand-dark);
            border-radius: 8px;
            font-size: 1rem;
        }

        .footer-text {
            font-size: 0.88rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 10px;
            max-width: 360px;
        }

        .footer-heading {
            font-family: var(--font-serif);
            font-weight: 600;
            font-size: 1rem;
            color: var(--brand-gold);
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

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

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.88rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-links a:hover {
            color: var(--brand-gold);
            padding-left: 4px;
        }

        .footer-bottom {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-bottom a:hover {
            color: var(--brand-gold);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 991.98px) {
            .navbar-nav {
                padding: 16px 0;
                gap: 4px;
            }

            .navbar-nav .nav-link {
                padding: 10px 16px !important;
                margin: 0;
                font-size: 0.95rem;
            }

            .navbar-nav .nav-link.active::after {
                left: 16px;
                right: auto;
                width: 30px;
                bottom: 6px;
            }

            .nav-cta-btn {
                margin: 12px 0 0;
                justify-content: center;
                width: 100%;
                padding: 12px 20px !important;
            }

            .category-hero .h1 {
                font-size: 1.7rem;
            }

            .section-title {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 767.98px) {
            body {
                font-size: 15px;
                line-height: 1.85;
                padding-top: 62px;
            }

            .section-padding {
                padding-top: var(--spacing-section-mobile);
                padding-bottom: var(--spacing-section-mobile);
            }

            .category-hero {
                padding: 36px 0 28px;
            }

            .category-hero .h1 {
                font-size: 1.4rem;
            }

            .category-hero .lead {
                font-size: 0.92rem;
                line-height: 1.8;
            }

            .category-hero-img {
                max-width: 100%;
                margin-top: 16px;
            }

            .data-strip .data-item {
                padding: 8px 12px;
            }

            .data-strip .data-num {
                font-size: 1.5rem;
            }

            .guide-grid {
                padding-top: var(--spacing-section-mobile);
                padding-bottom: 12px;
            }

            .guide-card {
                margin-bottom: 16px;
            }

            .guide-card-title {
                font-size: 0.95rem;
            }

            .guide-card-summary {
                font-size: 0.82rem;
            }

            .tip-bar {
                padding: 18px 20px;
            }

            .knowledge-section {
                padding-top: var(--spacing-section-mobile);
                padding-bottom: var(--spacing-section-mobile);
            }

            .category-cta {
                padding: 40px 0;
            }

            .category-cta .section-title {
                font-size: 1.3rem;
            }

            .btn-gold-primary,
            .btn-gold-outline {
                width: 100%;
                justify-content: center;
                font-size: 0.9rem;
                padding: 10px 24px;
            }

            .site-footer {
                padding: 40px 0 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .nav-cta-btn {
                font-size: 0.8rem;
                padding: 8px 16px !important;
            }
        }

        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

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

            .section-title {
                font-size: 1.3rem;
            }

            .data-strip .data-item {
                padding: 6px 8px;
            }

            .data-strip .data-num {
                font-size: 1.3rem;
            }

            .data-strip .data-label {
                font-size: 0.75rem;
            }

            .guide-card-img {
                aspect-ratio: 16/9;
            }
        }

/* roulang page: category3 */
:root {
            --brand-dark: #1B3B2F;
            --brand-dark-2: #142C23;
            --brand-gold: #C9A96E;
            --brand-gold-hover: #B8944E;
            --brand-bg: #F8F5F0;
            --brand-card: #FFFFFF;
            --brand-card-warm: #FDFCF9;
            --brand-text: #24302A;
            --brand-text-secondary: #6B7A72;
            --brand-accent: #7A4A3B;
            --brand-border: rgba(27, 59, 47, 0.08);
            --brand-border-gold: rgba(201, 169, 110, 0.4);
            --brand-shadow-sm: 0 2px 8px rgba(27, 59, 47, 0.06);
            --brand-shadow-lg: 0 12px 24px rgba(27, 59, 47, 0.12);
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-img: 12px;
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'STZhongsong', 'SimSun', serif;
            --font-sans: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --spacing-section: 80px;
            --spacing-section-mobile: 48px;
            --transition: all 0.25s ease;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.9;
            color: var(--brand-text);
            background-color: var(--brand-bg);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--brand-gold);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--brand-gold-hover);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--brand-gold);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        .container {
            max-width: 1200px;
            padding-left: 16px;
            padding-right: 16px;
        }

        .section-padding {
            padding-top: var(--spacing-section);
            padding-bottom: var(--spacing-section);
        }

        .section-subtitle {
            font-size: 0.9rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--brand-gold);
            margin-bottom: 12px;
            display: block;
        }

        .section-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 2rem;
            color: var(--brand-dark);
            margin-bottom: 20px;
            line-height: 1.4;
        }

        .section-description {
            font-size: 1rem;
            color: var(--brand-text-secondary);
            line-height: 1.9;
            max-width: 720px;
            margin-bottom: 32px;
        }

        .bg-brand-dark {
            background-color: var(--brand-dark);
            color: #fff;
        }
        .bg-brand-dark .section-title {
            color: #fff;
        }
        .bg-brand-dark .section-description {
            color: rgba(255, 255, 255, 0.78);
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background-color: rgba(27, 59, 47, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(201, 169, 110, 0.15);
            transition: box-shadow 0.3s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
        }
        .navbar {
            padding: 12px 0;
        }
        .navbar-brand {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--brand-gold) !important;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 0.02em;
        }
        .navbar-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--brand-gold);
            color: var(--brand-dark);
            border-radius: 8px;
            font-size: 1rem;
        }
        .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.82);
            font-size: 0.9rem;
            font-weight: 500;
            padding: 8px 14px !important;
            margin: 0 4px;
            border-radius: 6px;
            position: relative;
            transition: var(--transition);
            letter-spacing: 0.02em;
        }
        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link:focus {
            color: var(--brand-gold);
        }
        .navbar-nav .nav-link.active {
            color: var(--brand-gold);
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--brand-gold);
            border-radius: 2px;
        }
        .nav-cta-btn {
            background-color: var(--brand-gold);
            color: var(--brand-dark) !important;
            font-weight: 600;
            font-size: 0.85rem;
            padding: 9px 20px !important;
            border-radius: var(--radius-btn);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-cta-btn:hover {
            background-color: var(--brand-gold-hover);
            color: var(--brand-dark) !important;
            box-shadow: 0 4px 12px rgba(201, 169, 110, 0.35);
        }
        .navbar-toggler {
            border: 1px solid rgba(201, 169, 110, 0.3);
            color: var(--brand-gold);
            padding: 6px 10px;
            border-radius: 8px;
            font-size: 1.2rem;
            background: transparent;
        }
        .navbar-toggler:focus {
            outline: none;
            box-shadow: 0 0 0 2px rgba(201, 169, 110, 0.4);
        }

        /* ============ BREADCRUMB ============ */
        .breadcrumb-section {
            padding-top: 110px;
            padding-bottom: 24px;
            background: var(--brand-bg);
        }
        .breadcrumb {
            margin-bottom: 0;
            font-size: 0.85rem;
            align-items: center;
        }
        .breadcrumb-item a {
            color: var(--brand-text-secondary);
            transition: var(--transition);
        }
        .breadcrumb-item a:hover {
            color: var(--brand-gold);
        }
        .breadcrumb-item.active {
            color: var(--brand-gold);
            font-weight: 600;
        }
        .breadcrumb-item + .breadcrumb-item::before {
            content: '/';
            color: rgba(36, 48, 42, 0.35);
            padding: 0 6px;
        }

        /* ============ CATEGORY HERO ============ */
        .category-hero {
            padding: 48px 0 56px;
            background: var(--brand-bg);
        }
        .category-hero .hero-badge {
            display: inline-block;
            background: rgba(201, 169, 110, 0.12);
            color: var(--brand-gold);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 20px;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }
        .category-hero h1 {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 2.6rem;
            color: var(--brand-dark);
            margin-bottom: 18px;
            line-height: 1.35;
        }
        .category-hero .hero-summary {
            font-size: 1rem;
            color: var(--brand-text-secondary);
            line-height: 1.95;
            max-width: 760px;
            margin-bottom: 28px;
        }
        .category-hero .hero-img-wrap {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--brand-shadow-lg);
            position: relative;
        }
        .category-hero .hero-img-wrap img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            border-radius: var(--radius-card);
        }
        .category-hero .hero-img-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 32px 24px;
            background: linear-gradient(180deg, transparent 0%, rgba(27, 59, 47, 0.75) 100%);
            border-radius: 0 0 var(--radius-card) var(--radius-card);
        }
        .category-hero .hero-img-overlay span {
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.85rem;
            letter-spacing: 0.03em;
        }
        .category-hero .hero-img-overlay .overlay-title {
            color: #fff;
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.2rem;
        }

        /* ============ STATS STRIP ============ */
        .stats-strip {
            padding: 32px 0;
            background: var(--brand-card-warm);
            border-top: 1px solid var(--brand-border);
            border-bottom: 1px solid var(--brand-border);
        }
        .stat-item {
            text-align: center;
            padding: 16px 12px;
            transition: var(--transition);
            border-radius: var(--radius-card);
        }
        .stat-item:hover {
            background: #fff;
            box-shadow: var(--brand-shadow-sm);
        }
        .stat-number {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--brand-dark);
            display: block;
            line-height: 1.2;
        }
        .stat-number .stat-unit {
            font-size: 1rem;
            color: var(--brand-gold);
            font-family: var(--font-sans);
            margin-left: 2px;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--brand-text-secondary);
            margin-top: 6px;
            display: block;
        }

        /* ============ CARD GRID ============ */
        .card-grid-section {
            padding: 64px 0;
            background: var(--brand-bg);
        }
        .card-grid-section .section-head {
            margin-bottom: 40px;
        }
        .event-card {
            background: var(--brand-card);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--brand-shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--brand-border);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .event-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--brand-shadow-lg);
            border-color: var(--brand-border-gold);
        }
        .event-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            height: 180px;
        }
        .event-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .event-card .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(27, 59, 47, 0.85);
            color: var(--brand-gold);
            font-size: 0.7rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 16px;
            letter-spacing: 0.03em;
            backdrop-filter: blur(4px);
        }
        .event-card .card-body {
            padding: 20px 20px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .event-card .card-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--brand-dark);
            margin-bottom: 10px;
            line-height: 1.45;
            transition: var(--transition);
        }
        .event-card:hover .card-title {
            color: var(--brand-gold);
        }
        .event-card .card-summary {
            font-size: 0.85rem;
            color: var(--brand-text-secondary);
            line-height: 1.75;
            margin-bottom: 14px;
            flex: 1;
        }
        .event-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.75rem;
            color: var(--brand-text-secondary);
            padding-top: 12px;
            border-top: 1px solid var(--brand-border);
        }
        .event-card .card-meta .meta-date {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .event-card .card-meta .meta-status {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 0.7rem;
        }
        .meta-status.status-open {
            background: rgba(77, 175, 124, 0.14);
            color: #3d8b63;
        }
        .meta-status.status-soon {
            background: rgba(201, 169, 110, 0.15);
            color: var(--brand-gold-hover);
        }
        .meta-status.status-ended {
            background: rgba(122, 74, 59, 0.1);
            color: var(--brand-accent);
        }

        /* ============ NOTICE BAR ============ */
        .notice-bar-section {
            padding: 48px 0;
            background: var(--brand-card-warm);
        }
        .notice-bar {
            display: flex;
            gap: 18px;
            background: var(--brand-card);
            border-left: 4px solid var(--brand-gold);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            box-shadow: var(--brand-shadow-sm);
            border-color: var(--brand-border);
            border-left-color: var(--brand-gold);
        }
        .notice-bar .notice-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            background: rgba(201, 169, 110, 0.12);
            color: var(--brand-gold);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
        }
        .notice-bar .notice-content h3 {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--brand-dark);
            margin-bottom: 8px;
        }
        .notice-bar .notice-content p {
            font-size: 0.9rem;
            color: var(--brand-text-secondary);
            line-height: 1.85;
            margin-bottom: 0;
        }

        /* ============ KNOWLEDGE SECTION ============ */
        .knowledge-section {
            padding: 64px 0;
            background: var(--brand-bg);
        }
        .knowledge-card {
            background: var(--brand-card);
            border-radius: var(--radius-card);
            padding: 24px;
            border: 1px solid var(--brand-border);
            box-shadow: var(--brand-shadow-sm);
            transition: var(--transition);
            height: 100%;
        }
        .knowledge-card:hover {
            border-color: var(--brand-border-gold);
            box-shadow: var(--brand-shadow-lg);
        }
        .knowledge-card .kc-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(201, 169, 110, 0.1);
            color: var(--brand-gold);
            border-radius: 10px;
            font-size: 1.1rem;
            margin-bottom: 14px;
        }
        .knowledge-card h4 {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1rem;
            color: var(--brand-dark);
            margin-bottom: 8px;
        }
        .knowledge-card p {
            font-size: 0.85rem;
            color: var(--brand-text-secondary);
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* ============ MORE LINK ============ */
        .view-more-section {
            padding: 12px 0 48px;
            background: var(--brand-bg);
        }
        .view-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--brand-gold);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 10px 20px;
            border: 1px solid var(--brand-border-gold);
            border-radius: var(--radius-btn);
            transition: var(--transition);
            background: transparent;
        }
        .view-more-btn:hover {
            background: var(--brand-gold);
            color: var(--brand-dark);
            border-color: var(--brand-gold);
        }

        /* ============ PAGE CTA ============ */
        .page-cta-section {
            padding: 56px 0 64px;
            background: var(--brand-dark);
        }
        .page-cta-section .section-title {
            color: #fff;
        }
        .page-cta-section .section-description {
            color: rgba(255, 255, 255, 0.75);
        }
        .btn-gold {
            background-color: var(--brand-gold);
            color: var(--brand-dark);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 0.02em;
        }
        .btn-gold:hover {
            background-color: var(--brand-gold-hover);
            color: var(--brand-dark);
            box-shadow: 0 8px 20px rgba(201, 169, 110, 0.35);
            transform: translateY(-1px);
        }
        .btn-outline-gold {
            background: transparent;
            color: var(--brand-gold);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: 1.5px solid var(--brand-gold);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-outline-gold:hover {
            background: rgba(201, 169, 110, 0.1);
            color: var(--brand-gold);
            border-color: var(--brand-gold-hover);
        }
        .cta-small-note {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.8rem;
            margin-top: 12px;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background-color: var(--brand-dark-2);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 28px;
            font-size: 0.9rem;
        }
        .site-footer .footer-brand {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--brand-gold);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 14px;
        }
        .site-footer .footer-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            background: var(--brand-gold);
            color: var(--brand-dark);
            border-radius: 7px;
            font-size: 0.9rem;
        }
        .site-footer .footer-text {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            line-height: 1.85;
            margin-bottom: 12px;
            max-width: 360px;
        }
        .site-footer .footer-heading {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1rem;
            color: var(--brand-gold);
            margin-bottom: 16px;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 8px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.85rem;
            transition: var(--transition);
        }
        .site-footer .footer-links a:hover {
            color: var(--brand-gold);
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            margin-top: 36px;
            padding-top: 20px;
            border-top: 1px solid rgba(201, 169, 110, 0.15);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            transition: var(--transition);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--brand-gold);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 991px) {
            .category-hero h1 {
                font-size: 2.1rem;
            }
            .category-hero .hero-img-wrap img {
                height: 260px;
            }
            .navbar-collapse {
                background: rgba(27, 59, 47, 0.98);
                border-radius: 0 0 14px 14px;
                padding: 16px;
                margin-top: 8px;
                border: 1px solid rgba(201, 169, 110, 0.2);
            }
            .navbar-nav .nav-link {
                padding: 10px 16px !important;
            }
            .nav-cta-btn {
                display: block;
                text-align: center;
                margin-top: 12px;
                justify-content: center;
            }
            .section-padding {
                padding-top: var(--spacing-section-mobile);
                padding-bottom: var(--spacing-section-mobile);
            }
            .section-title {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 767px) {
            .category-hero {
                padding: 28px 0 36px;
            }
            .category-hero h1 {
                font-size: 1.7rem;
            }
            .category-hero .hero-summary {
                font-size: 0.9rem;
            }
            .category-hero .hero-img-wrap img {
                height: 200px;
            }
            .stat-number {
                font-size: 1.4rem;
            }
            .notice-bar {
                flex-direction: column;
                gap: 12px;
                padding: 20px;
            }
            .card-grid-section {
                padding: 40px 0;
            }
            .knowledge-section {
                padding: 40px 0;
            }
            .page-cta-section {
                padding: 40px 0 48px;
            }
            .site-footer {
                padding: 40px 0 20px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .event-card .card-img-wrap {
                height: 160px;
            }
        }

        @media (max-width: 520px) {
            body {
                font-size: 14px;
            }
            .category-hero h1 {
                font-size: 1.4rem;
            }
            .category-hero .hero-summary {
                font-size: 0.85rem;
                line-height: 1.8;
            }
            .stat-item {
                padding: 10px 6px;
            }
            .stat-number {
                font-size: 1.2rem;
            }
            .stat-label {
                font-size: 0.75rem;
            }
            .event-card .card-body {
                padding: 16px;
            }
            .event-card .card-title {
                font-size: 0.95rem;
            }
            .event-card .card-summary {
                font-size: 0.8rem;
            }
            .btn-gold,
            .btn-outline-gold {
                font-size: 0.82rem;
                padding: 10px 20px;
            }
            .breadcrumb-section {
                padding-top: 100px;
            }
        }

/* roulang page: category4 */
:root {
            --brand-dark: #1B3B2F;
            --brand-dark-2: #142C23;
            --brand-gold: #C9A96E;
            --brand-gold-hover: #B8944E;
            --brand-bg: #F8F5F0;
            --brand-card: #FFFFFF;
            --brand-card-warm: #FDFCF9;
            --brand-text: #24302A;
            --brand-text-secondary: #6B7A72;
            --brand-accent: #7A4A3B;
            --brand-border: rgba(27, 59, 47, 0.08);
            --brand-border-gold: rgba(201, 169, 110, 0.4);
            --brand-shadow-sm: 0 2px 8px rgba(27, 59, 47, 0.06);
            --brand-shadow-lg: 0 12px 24px rgba(27, 59, 47, 0.12);
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-img: 12px;
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'STZhongsong', 'SimSun', serif;
            --font-sans: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --spacing-section: 80px;
            --spacing-section-mobile: 48px;
            --transition: all 0.25s ease;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.9;
            color: var(--brand-text);
            background-color: var(--brand-bg);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: 76px;
        }

        a {
            color: var(--brand-gold);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--brand-gold-hover);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--brand-gold);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        .container {
            max-width: 1200px;
            padding-left: 16px;
            padding-right: 16px;
        }

        .section-padding {
            padding-top: var(--spacing-section);
            padding-bottom: var(--spacing-section);
        }
        @media (max-width: 768px) {
            .section-padding {
                padding-top: var(--spacing-section-mobile);
                padding-bottom: var(--spacing-section-mobile);
            }
        }

        .section-subtitle {
            font-size: 0.9rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--brand-gold);
            margin-bottom: 12px;
            display: block;
        }
        .section-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 2rem;
            color: var(--brand-dark);
            margin-bottom: 20px;
            line-height: 1.4;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 1.4rem;
            }
        }
        .section-description {
            font-size: 1rem;
            color: var(--brand-text-secondary);
            line-height: 1.9;
            max-width: 720px;
            margin-bottom: 32px;
        }

        .bg-brand-dark {
            background-color: var(--brand-dark);
            color: #fff;
        }
        .bg-brand-dark .section-title {
            color: #fff;
        }
        .bg-brand-dark .section-description {
            color: rgba(255, 255, 255, 0.78);
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background-color: rgba(27, 59, 47, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(201, 169, 110, 0.15);
            transition: box-shadow 0.3s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
        }
        .navbar {
            padding: 12px 0;
        }
        .navbar-brand {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--brand-gold) !important;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 0.02em;
        }
        .navbar-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--brand-gold);
            color: var(--brand-dark);
            border-radius: 8px;
            font-size: 1rem;
        }
        .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.82);
            font-size: 0.9rem;
            font-weight: 500;
            padding: 8px 14px !important;
            margin: 0 4px;
            border-radius: 6px;
            position: relative;
            transition: var(--transition);
            letter-spacing: 0.02em;
        }
        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link:focus {
            color: var(--brand-gold);
        }
        .navbar-nav .nav-link.active {
            color: var(--brand-gold);
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--brand-gold);
            border-radius: 2px;
        }
        .nav-cta-btn {
            background-color: var(--brand-gold);
            color: var(--brand-dark) !important;
            font-weight: 600;
            font-size: 0.85rem;
            padding: 9px 20px !important;
            border-radius: var(--radius-btn);
            display: inline-flex;
            align-items: center;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-cta-btn:hover {
            background-color: var(--brand-gold-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        .navbar-toggler {
            border: none;
            color: var(--brand-gold);
            font-size: 1.4rem;
            padding: 4px 8px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--brand-gold);
            outline-offset: 2px;
            border-radius: 6px;
        }
        @media (max-width: 991px) {
            .navbar-collapse {
                background-color: var(--brand-dark);
                border-radius: 12px;
                padding: 16px;
                margin-top: 10px;
                border: 1px solid rgba(201, 169, 110, 0.2);
            }
            .nav-cta-btn {
                margin-top: 12px;
                display: block;
                text-align: center;
                justify-content: center;
            }
        }

        /* ============ BREADCRUMB ============ */
        .breadcrumb-section {
            padding: 24px 0 8px;
            background-color: transparent;
        }
        .breadcrumb {
            margin-bottom: 0;
            font-size: 0.85rem;
            background: transparent;
            padding: 0;
        }
        .breadcrumb-item a {
            color: var(--brand-gold);
            font-weight: 500;
        }
        .breadcrumb-item a:hover {
            color: var(--brand-gold-hover);
        }
        .breadcrumb-item.active {
            color: var(--brand-text-secondary);
        }
        .breadcrumb-item+.breadcrumb-item::before {
            content: '\f105';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            color: var(--brand-border-gold);
            padding: 0 6px;
        }

        /* ============ CATEGORY H1 BLOCK ============ */
        .category-hero {
            padding: 28px 0 40px;
            background: linear-gradient(180deg, #F8F5F0 0%, #FFFFFF 100%);
            border-bottom: 1px solid var(--brand-border);
        }
        .category-hero .section-title {
            margin-bottom: 16px;
            font-size: 2.25rem;
        }
        .category-hero .summary-text {
            font-size: 1rem;
            color: var(--brand-text-secondary);
            line-height: 1.95;
            max-width: 780px;
        }
        .category-hero-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--brand-shadow-sm);
        }
        .category-hero-image img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            border-radius: var(--radius-card);
        }

        /* ============ DATA STRIP ============ */
        .data-strip {
            padding: 24px 0;
            background-color: var(--brand-card);
            border-radius: var(--radius-card);
            box-shadow: var(--brand-shadow-sm);
            margin-top: 40px;
        }
        .data-strip .data-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 8px 16px;
        }
        .data-strip .data-icon {
            width: 42px;
            height: 42px;
            flex-shrink: 0;
            border-radius: 10px;
            background-color: rgba(201, 169, 110, 0.15);
            color: var(--brand-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
        }
        .data-strip .data-value {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--brand-dark);
            line-height: 1.3;
        }
        .data-strip .data-label {
            font-size: 0.8rem;
            color: var(--brand-text-secondary);
        }

        /* ============ CHANGELOG CARDS ============ */
        .changelog-section {
            padding-top: 56px;
            padding-bottom: 40px;
        }
        .changelog-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 28px;
        }
        @media (max-width: 991px) {
            .changelog-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .changelog-grid {
                grid-template-columns: 1fr;
            }
        }
        .changelog-card {
            background-color: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--radius-card);
            padding: 22px 20px;
            box-shadow: var(--brand-shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .changelog-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--brand-shadow-lg);
            border-color: var(--brand-border-gold);
        }
        .card-version-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 12px;
        }
        .card-version-badge {
            background-color: var(--brand-dark);
            color: var(--brand-gold);
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 0.85rem;
            padding: 4px 10px;
            border-radius: 20px;
            letter-spacing: 0.03em;
        }
        .card-date {
            font-size: 0.8rem;
            color: var(--brand-text-secondary);
        }
        .changelog-card h3 {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--brand-dark);
            margin-bottom: 8px;
            line-height: 1.45;
        }
        .changelog-card .card-summary {
            font-size: 0.9rem;
            color: var(--brand-text-secondary);
            line-height: 1.8;
            flex-grow: 1;
        }
        .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 14px;
        }
        .card-tag {
            font-size: 0.7rem;
            font-weight: 500;
            padding: 3px 10px;
            border-radius: 16px;
            background-color: rgba(201, 169, 110, 0.12);
            color: var(--brand-gold);
            letter-spacing: 0.04em;
        }
        .card-tag.tag-fix {
            background-color: rgba(122, 74, 59, 0.12);
            color: var(--brand-accent);
        }

        /* ============ NOTICE BAR ============ */
        .notice-bar {
            background-color: var(--brand-card-warm);
            border-left: 4px solid var(--brand-gold);
            border-radius: var(--radius-card);
            padding: 24px 28px;
            box-shadow: var(--brand-shadow-sm);
            margin: 40px 0;
        }
        .notice-bar .notice-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--brand-dark);
            margin-bottom: 8px;
        }
        .notice-bar p {
            font-size: 0.95rem;
            color: var(--brand-text-secondary);
            margin-bottom: 0;
            line-height: 1.9;
        }

        /* ============ KNOWLEDGE SECTION ============ */
        .knowledge-card {
            background-color: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--brand-shadow-sm);
            height: 100%;
            transition: var(--transition);
        }
        .knowledge-card:hover {
            box-shadow: var(--brand-shadow-lg);
            border-color: var(--brand-border-gold);
        }
        .knowledge-card h3 {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--brand-dark);
            margin-bottom: 10px;
        }
        .knowledge-card p {
            font-size: 0.9rem;
            color: var(--brand-text-secondary);
            line-height: 1.85;
            margin-bottom: 0;
        }

        /* ============ VIEW MORE ============ */
        .view-more-wrap {
            text-align: center;
            padding: 32px 0 48px;
        }
        .view-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--brand-gold);
            border: 1px solid var(--brand-border-gold);
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            background: transparent;
            transition: var(--transition);
        }
        .view-more-btn:hover {
            background-color: var(--brand-gold);
            color: var(--brand-dark);
            border-color: var(--brand-gold);
        }

        /* ============ CTA SECTION ============ */
        .category-cta {
            background-color: var(--brand-dark);
            border-radius: var(--radius-card);
            padding: 48px 32px;
            text-align: center;
            box-shadow: var(--brand-shadow-lg);
            margin-bottom: 48px;
        }
        .category-cta h2 {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.6rem;
            color: #fff;
            margin-bottom: 14px;
        }
        .category-cta p {
            color: rgba(255, 255, 255, 0.78);
            font-size: 0.95rem;
            margin-bottom: 24px;
        }
        .category-cta .cta-main-btn {
            background-color: var(--brand-gold);
            color: var(--brand-dark);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .category-cta .cta-main-btn:hover {
            background-color: var(--brand-gold-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
            color: var(--brand-dark);
        }
        .category-cta .cta-note {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 14px;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background-color: var(--brand-dark-2);
            color: rgba(255, 255, 255, 0.78);
            padding-top: 56px;
            padding-bottom: 24px;
        }
        .site-footer .footer-brand {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--brand-gold);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }
        .site-footer .footer-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--brand-gold);
            color: var(--brand-dark);
            border-radius: 8px;
            font-size: 1rem;
        }
        .site-footer .footer-text {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            margin-bottom: 8px;
        }
        .site-footer .footer-heading {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            margin-bottom: 16px;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            transition: var(--transition);
        }
        .site-footer .footer-links a:hover {
            color: var(--brand-gold);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(201, 169, 110, 0.15);
            padding-top: 20px;
            margin-top: 36px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.8rem;
        }
        .site-footer .footer-bottom a:hover {
            color: var(--brand-gold);
        }

/* roulang page: category5 */
:root {
      --brand-dark: #1B3B2F;
      --brand-dark-2: #142C23;
      --brand-gold: #C9A96E;
      --brand-gold-hover: #B8944E;
      --brand-bg: #F8F5F0;
      --brand-card: #FFFFFF;
      --brand-card-warm: #FDFCF9;
      --brand-text: #24302A;
      --brand-text-secondary: #6B7A72;
      --brand-accent: #7A4A3B;
      --brand-border: rgba(27, 59, 47, 0.08);
      --brand-border-gold: rgba(201, 169, 110, 0.4);
      --brand-shadow-sm: 0 2px 8px rgba(27, 59, 47, 0.06);
      --brand-shadow-lg: 0 12px 24px rgba(27, 59, 47, 0.12);
      --radius-card: 14px;
      --radius-btn: 10px;
      --radius-img: 12px;
      --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'STZhongsong', 'SimSun', serif;
      --font-sans: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
      --spacing-section: 80px;
      --spacing-section-mobile: 48px;
      --transition: all 0.25s ease;
    }
    html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
    body {
      font-family: var(--font-sans);
      font-size: 15px;
      line-height: 1.85;
      color: var(--brand-text);
      background-color: var(--brand-bg);
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    a { color: var(--brand-gold); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--brand-gold-hover); }
    a:focus-visible, button:focus-visible, input:focus-visible {
      outline: 2px solid var(--brand-gold);
      outline-offset: 2px;
      border-radius: 4px;
    }
    img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-img); }
    .container { max-width: 1200px; }
    .section-padding { padding-top: var(--spacing-section); padding-bottom: var(--spacing-section); }
    @media (max-width: 768px) {
      .section-padding { padding-top: var(--spacing-section-mobile); padding-bottom: var(--spacing-section-mobile); }
      body { padding-top: 62px; }
    }
    .section-subtitle {
      font-size: 0.85rem;
      font-weight: 600;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--brand-gold);
      margin-bottom: 10px;
      display: block;
    }
    .section-title {
      font-family: var(--font-serif);
      font-weight: 700;
      font-size: 2rem;
      color: var(--brand-dark);
      margin-bottom: 20px;
      line-height: 1.4;
    }
    @media (max-width: 768px) {
      .section-title { font-size: 1.4rem; }
    }
    .section-description {
      font-size: 1rem;
      color: var(--brand-text-secondary);
      line-height: 1.9;
      max-width: 720px;
      margin-bottom: 32px;
    }
    .skip-link {
      position: absolute;
      left: -9999px;
      top: 0;
      background: var(--brand-gold);
      color: var(--brand-dark);
      padding: 8px 16px;
      z-index: 9999;
      border-radius: 0 0 8px 0;
      font-weight: 600;
    }
    .skip-link:focus { left: 0; }

    /* Header / Nav */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1050;
      background-color: rgba(27, 59, 47, 0.96);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(201, 169, 110, 0.15);
      transition: box-shadow 0.3s ease;
    }
    .site-header.scrolled { box-shadow: 0 4px 20px rgba(0,0,0,0.25); }
    .navbar { padding: 12px 0; }
    .navbar-brand {
      font-family: var(--font-serif);
      font-weight: 700;
      font-size: 1.4rem;
      color: var(--brand-gold) !important;
      display: flex;
      align-items: center;
      gap: 8px;
      letter-spacing: 0.02em;
    }
    .navbar-brand .brand-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 32px;
      height: 32px;
      background: var(--brand-gold);
      color: var(--brand-dark);
      border-radius: 8px;
      font-size: 1rem;
    }
    .navbar-nav .nav-link {
      color: rgba(255,255,255,0.82);
      font-size: 0.9rem;
      font-weight: 500;
      padding: 8px 14px !important;
      margin: 0 4px;
      border-radius: 6px;
      position: relative;
      transition: var(--transition);
      letter-spacing: 0.02em;
    }
    .navbar-nav .nav-link:hover,
    .navbar-nav .nav-link:focus { color: var(--brand-gold); }
    .navbar-nav .nav-link.active { color: var(--brand-gold); }
    .navbar-nav .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: 2px;
      left: 14px;
      right: 14px;
      height: 2px;
      background: var(--brand-gold);
      border-radius: 2px;
    }
    .nav-cta-btn {
      background-color: var(--brand-gold);
      color: var(--brand-dark) !important;
      font-weight: 600;
      font-size: 0.85rem;
      padding: 9px 20px !important;
      border-radius: var(--radius-btn);
      transition: var(--transition);
      white-space: nowrap;
    }
    .nav-cta-btn:hover { background-color: var(--brand-gold-hover); color: #fff !important; }
    .navbar-toggler {
      border: none;
      color: var(--brand-gold);
      font-size: 1.4rem;
      padding: 4px 10px;
    }
    .navbar-toggler:focus { box-shadow: none; }

    /* Breadcrumb */
    .breadcrumb-section {
      margin-top: 76px;
      padding: 16px 0;
      background: transparent;
    }
    .breadcrumb {
      margin-bottom: 0;
      font-size: 0.85rem;
      color: var(--brand-text-secondary);
    }
    .breadcrumb-item + .breadcrumb-item::before { color: var(--brand-gold); }
    .breadcrumb-item a { color: var(--brand-gold); }
    .breadcrumb-item.active { color: var(--brand-gold); font-weight: 600; }

    /* Page Hero / H1 block */
    .page-hero {
      padding-top: 30px;
      padding-bottom: 50px;
      background: var(--brand-bg);
    }
    .page-hero .hero-content { display: flex; align-items: center; gap: 40px; flex-wrap: wrap; }
    .page-hero .hero-text { flex: 1 1 55%; min-width: 300px; }
    .page-hero .hero-text h1 {
      font-family: var(--font-serif);
      font-weight: 700;
      font-size: 2.6rem;
      color: var(--brand-dark);
      margin-bottom: 20px;
      line-height: 1.3;
    }
    .page-hero .hero-text .lead {
      font-size: 1.05rem;
      color: var(--brand-text-secondary);
      line-height: 1.95;
      max-width: 720px;
    }
    .page-hero .hero-image {
      flex: 1 1 35%;
      min-width: 280px;
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--brand-shadow-lg);
    }
    .page-hero .hero-image img {
      width: 100%;
      height: auto;
      object-fit: cover;
      border-radius: var(--radius-card);
      aspect-ratio: 4/3;
    }

    /* Stats bar */
    .stats-bar { padding: 40px 0; background: var(--brand-dark); }
    .stats-bar .stats-grid {
      display: flex;
      flex-wrap: wrap;
      gap: 30px;
      justify-content: center;
    }
    .stat-item {
      flex: 1 1 180px;
      max-width: 220px;
      text-align: center;
      color: #fff;
      padding: 10px 20px;
      border-right: 1px solid rgba(255,255,255,0.1);
      border-left: 1px solid rgba(255,255,255,0.1);
    }
    .stat-item:first-child { border-left: none; }
    .stat-item:last-child { border-right: none; }
    .stat-item .stat-number {
      font-family: var(--font-serif);
      font-size: 2.2rem;
      font-weight: 700;
      color: var(--brand-gold);
      line-height: 1.2;
    }
    .stat-item .stat-label {
      font-size: 0.9rem;
      color: rgba(255,255,255,0.75);
      margin-top: 6px;
    }
    @media (max-width: 768px) {
      .stat-item { border: none; max-width: 100%; flex-basis: 45%; }
    }

    /* FAQ Accordion custom */
    .faq-section { background: var(--brand-bg); }
    .faq-section .accordion-item {
      border: 1px solid var(--brand-border);
      border-radius: var(--radius-card);
      margin-bottom: 14px;
      overflow: hidden;
      background: var(--brand-card);
      box-shadow: var(--brand-shadow-sm);
      transition: var(--transition);
    }
    .faq-section .accordion-item:hover {
      border-color: var(--brand-border-gold);
      box-shadow: var(--brand-shadow-lg);
    }
    .faq-section .accordion-header { margin: 0; }
    .faq-section .accordion-button {
      background: var(--brand-card-warm);
      color: var(--brand-dark);
      font-weight: 600;
      font-size: 1rem;
      padding: 18px 20px;
      border: none;
      box-shadow: none;
      transition: var(--transition);
      letter-spacing: 0.01em;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .faq-section .accordion-button:not(.collapsed) {
      background: var(--brand-card);
      color: var(--brand-gold-hover);
      border-left: 3px solid var(--brand-gold);
    }
    .faq-section .accordion-button:focus {
      outline: none;
      box-shadow: 0 0 0 2px var(--brand-gold);
      border-radius: 0;
    }
    .faq-section .accordion-button::after {
      display: none; /* replace with custom icon */
    }
    .faq-section .accordion-button .faq-icon {
      font-size: 0.9rem;
      color: var(--brand-gold);
      margin-left: 12px;
      transition: transform 0.3s ease;
    }
    .faq-section .accordion-button:not(.collapsed) .faq-icon {
      transform: rotate(180deg);
    }
    .faq-section .accordion-body {
      padding: 18px 20px;
      font-size: 0.95rem;
      color: var(--brand-text-secondary);
      line-height: 1.9;
      border-top: 1px solid var(--brand-border);
      background: #fff;
      text-align: left;
    }

    /* Notice bar */
    .notice-section { background: var(--brand-bg); }
    .notice-bar {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      background: var(--brand-card-warm);
      border-left: 4px solid var(--brand-gold);
      border-radius: 0 var(--radius-card) var(--radius-card) 0;
      padding: 24px 28px;
      box-shadow: var(--brand-shadow-sm);
      max-width: 800px;
      margin: 0 auto;
    }
    .notice-bar .notice-icon {
      font-size: 1.6rem;
      color: var(--brand-gold);
      flex-shrink: 0;
      margin-top: 2px;
    }
    .notice-bar .notice-content h3 {
      font-family: var(--font-serif);
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--brand-dark);
      margin-bottom: 6px;
    }
    .notice-bar .notice-content p {
      font-size: 0.9rem;
      color: var(--brand-text-secondary);
      margin: 0;
      line-height: 1.8;
    }

    /* Knowledge mini cards */
    .knowledge-section {
      background: #fff;
      padding: 60px 0;
    }
    .knowledge-grid {
      display: flex;
      flex-wrap: wrap;
      gap: 24px;
      justify-content: center;
    }
    .knowledge-card {
      flex: 1 1 260px;
      max-width: 360px;
      background: var(--brand-card-warm);
      border: 1px solid var(--brand-border);
      border-radius: var(--radius-card);
      padding: 24px;
      transition: var(--transition);
      box-shadow: var(--brand-shadow-sm);
    }
    .knowledge-card:hover {
      border-color: var(--brand-border-gold);
      box-shadow: var(--brand-shadow-lg);
      transform: translateY(-2px);
    }
    .knowledge-card .knowledge-icon {
      font-size: 1.8rem;
      color: var(--brand-gold);
      margin-bottom: 12px;
    }
    .knowledge-card h3 {
      font-family: var(--font-serif);
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--brand-dark);
      margin-bottom: 8px;
    }
    .knowledge-card p {
      font-size: 0.9rem;
      color: var(--brand-text-secondary);
      line-height: 1.75;
      margin: 0;
    }

    /* Text link button for "查看更多" */
    .more-link {
      display: inline-block;
      margin-top: 32px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--brand-gold);
      border-bottom: 1px solid var(--brand-gold);
      padding-bottom: 2px;
      transition: var(--transition);
    }
    .more-link:hover {
      color: var(--brand-gold-hover);
      border-bottom-color: var(--brand-gold-hover);
      text-decoration: none;
    }

    /* CTA */
    .cta-section {
      background: var(--brand-dark);
      color: #fff;
      padding: 70px 0;
      text-align: center;
    }
    .cta-section h2 {
      font-family: var(--font-serif);
      font-weight: 700;
      font-size: 2rem;
      margin-bottom: 16px;
    }
    .cta-section .cta-text {
      font-size: 1rem;
      color: rgba(255,255,255,0.8);
      max-width: 640px;
      margin: 0 auto 28px;
      line-height: 1.85;
    }
    .cta-btn {
      background-color: var(--brand-gold);
      color: var(--brand-dark);
      font-weight: 700;
      padding: 12px 32px;
      border-radius: var(--radius-btn);
      border: none;
      transition: var(--transition);
      font-size: 1rem;
    }
    .cta-btn:hover {
      background-color: var(--brand-gold-hover);
      color: #fff;
      box-shadow: 0 8px 20px rgba(201,169,110,0.3);
    }

    /* Footer */
    .site-footer {
      background: var(--brand-dark-2);
      color: rgba(255,255,255,0.75);
      padding: 60px 0 30px;
      font-size: 0.9rem;
    }
    .site-footer .footer-brand {
      font-family: var(--font-serif);
      font-weight: 700;
      font-size: 1.3rem;
      color: var(--brand-gold);
      display: flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 16px;
    }
    .site-footer .footer-brand .brand-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 32px;
      height: 32px;
      background: var(--brand-gold);
      color: var(--brand-dark);
      border-radius: 8px;
      font-size: 1rem;
    }
    .site-footer .footer-text {
      color: rgba(255,255,255,0.65);
      line-height: 1.8;
      max-width: 330px;
    }
    .site-footer .footer-heading {
      font-size: 1rem;
      font-weight: 600;
      color: var(--brand-gold);
      margin-bottom: 16px;
    }
    .site-footer .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .site-footer .footer-links li {
      margin-bottom: 10px;
    }
    .site-footer .footer-links a {
      color: rgba(255,255,255,0.65);
      transition: var(--transition);
    }
    .site-footer .footer-links a:hover {
      color: var(--brand-gold);
      text-decoration: none;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.1);
      margin-top: 40px;
      padding-top: 20px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      font-size: 0.85rem;
      color: rgba(255,255,255,0.55);
    }
    .footer-bottom a {
      color: rgba(255,255,255,0.55);
    }
    .footer-bottom a:hover { color: var(--brand-gold); }

    @media (max-width: 992px) {
      .navbar-collapse { background: var(--brand-dark); padding: 10px 0; border-radius: 0 0 10px 10px; }
      .nav-cta-btn { margin-top: 8px; }
      .page-hero .hero-content { flex-direction: column; }
      .page-hero .hero-text { flex-basis: 100%; }
      .page-hero .hero-image { flex-basis: 100%; width: 100%; }
      .stat-item { max-width: 160px; }
      .knowledge-card { flex-basis: 45%; max-width: 45%; }
    }
    @media (max-width: 576px) {
      .page-hero .hero-text h1 { font-size: 2rem; }
      .stat-item { flex-basis: 48%; max-width: 48%; }
      .knowledge-card { flex-basis: 100%; max-width: 100%; }
      .notice-bar { padding: 18px; }
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}