/* roulang page: index */
:root {
            --bg-primary: #F6F3EC;
            --bg-white: #FFFFFF;
            --bg-dark: #1B1B1B;
            --bg-card: #FFFFFF;
            --text-dark: #1B1B1B;
            --text-soft: #4A4540;
            --text-muted: #7A716A;
            --text-on-dark: #F6F3EC;
            --accent-red: #9E2B25;
            --accent-red-hover: #7C1F1A;
            --accent-gold: #C6A15B;
            --accent-gold-light: #E8D5B5;
            --border-light: #E8E3DA;
            --border-gold: rgba(198, 161, 91, 0.55);
            --shadow-sm: 0 1px 4px rgba(27, 27, 27, 0.05);
            --shadow-md: 0 4px 18px rgba(27, 27, 27, 0.07);
            --shadow-lg: 0 12px 32px rgba(27, 27, 27, 0.1);
            --radius-sm: 3px;
            --radius-md: 5px;
            --radius-lg: 7px;
            --nav-width: 252px;
            --transition-fast: 0.22s ease;
            --transition-med: 0.32s ease;
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', 'STSong', serif;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', 'Helvetica Neue', Arial, sans-serif;
            --space-section: 72px;
            --space-section-mobile: 44px;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            background: var(--bg-primary);
            color: var(--text-dark);
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.85;
            letter-spacing: 0.01em;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-serif);
            color: var(--text-dark);
            margin: 0 0 0.6em;
            line-height: 1.35;
            font-weight: 700;
        }

        h1 {
            font-size: 34px;
        }

        h2 {
            font-size: 26px;
        }

        h3 {
            font-size: 20px;
        }

        p {
            margin: 0 0 1.1em;
            color: var(--text-soft);
        }

        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: var(--bg-dark);
            color: var(--text-on-dark);
            display: flex;
            flex-direction: column;
            z-index: 100;
            box-shadow: 2px 0 18px rgba(27, 27, 27, 0.12);
            transition: transform var(--transition-med);
        }

        .sidebar-logo {
            padding: 22px 24px 18px;
            border-bottom: 1px solid rgba(246, 243, 236, 0.12);
            flex-shrink: 0;
        }

        .sidebar-logo a {
            font-family: var(--font-serif);
            font-size: 22px;
            font-weight: 700;
            color: var(--text-on-dark);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.04em;
        }

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

        .sidebar-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: var(--accent-red);
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
            font-family: var(--font-sans);
        }

        .sidebar-nav {
            flex: 1;
            padding: 18px 14px;
            overflow-y: auto;
        }

        .sidebar-nav .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            color: rgba(246, 243, 236, 0.38);
            margin: 10px 10px 7px;
            font-weight: 600;
        }

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

        .sidebar-nav li {
            margin-bottom: 2px;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 11px;
            padding: 10px 12px;
            border-radius: var(--radius-sm);
            color: rgba(246, 243, 236, 0.72);
            font-size: 15px;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
        }

        .sidebar-nav a:hover {
            background: rgba(246, 243, 236, 0.06);
            color: var(--text-on-dark);
        }

        .sidebar-nav a.active {
            background: rgba(158, 43, 37, 0.18);
            color: var(--text-on-dark);
            font-weight: 600;
        }

        .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--accent-gold);
            border-radius: 0 2px 2px 0;
        }

        .sidebar-nav a .nav-icon {
            font-size: 16px;
            width: 20px;
            text-align: center;
            flex-shrink: 0;
            opacity: 0.85;
        }

        .sidebar-footer {
            padding: 14px 18px 18px;
            border-top: 1px solid rgba(246, 243, 236, 0.12);
            font-size: 12px;
            color: rgba(246, 243, 236, 0.38);
            flex-shrink: 0;
            line-height: 1.6;
        }

        .sidebar-footer span {
            display: block;
        }

        .main-wrapper {
            margin-left: var(--nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .mobile-topbar {
            display: none;
        }

        .mobile-overlay {
            display: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 28px;
        }

        .site-header-print {
            display: none;
        }

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

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

        .section-dark {
            background: var(--bg-dark);
            color: var(--text-on-dark);
        }

        .section-dark h2,
        .section-dark h3 {
            color: var(--text-on-dark);
        }

        .section-dark p {
            color: rgba(246, 243, 236, 0.72);
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--accent-red);
            margin-bottom: 14px;
            text-transform: uppercase;
        }

        .section-eyebrow::before {
            content: '';
            width: 22px;
            height: 1.5px;
            background: var(--accent-gold);
        }

        .section-title {
            font-size: 28px;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .section-desc {
            max-width: 760px;
            font-size: 16px;
            color: var(--text-muted);
            margin-bottom: 32px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 26px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all var(--transition-fast);
            border: none;
            letter-spacing: 0.02em;
            outline: none;
        }

        .btn:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 2px;
        }

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

        .btn-primary:hover {
            background: var(--accent-red-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(158, 43, 37, 0.25);
        }

        .btn-outline-dark {
            background: transparent;
            color: var(--text-dark);
            border: 1px solid var(--text-dark);
        }

        .btn-outline-dark:hover {
            background: var(--text-dark);
            color: #fff;
        }

        .btn-outline-gold {
            background: transparent;
            color: var(--accent-gold);
            border: 1.5px solid var(--accent-gold);
        }

        .btn-outline-gold:hover {
            background: var(--accent-gold);
            color: #fff;
            transform: translateY(-1px);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
        }

        .btn-lg {
            padding: 14px 34px;
            font-size: 16px;
        }

        .card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
        }

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

        .card-body {
            padding: 18px 20px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 2px;
            letter-spacing: 0.04em;
            background: rgba(198, 161, 91, 0.14);
            color: #8A6A35;
        }

        .tag-red {
            background: rgba(158, 43, 37, 0.1);
            color: var(--accent-red);
        }

        .tag-dark {
            background: rgba(27, 27, 27, 0.08);
            color: var(--text-soft);
        }

        .badge-count {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            color: var(--text-muted);
            gap: 4px;
        }

        .divider {
            height: 1px;
            background: var(--border-light);
            margin: 18px 0;
        }

        .stat-number {
            font-family: var(--font-serif);
            font-size: 36px;
            font-weight: 700;
            color: var(--accent-red);
            line-height: 1.2;
        }

        .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .grid-gap {
            gap: 22px;
        }

        .hero-section {
            position: relative;
            padding: 0;
            min-height: 420px;
            background: var(--bg-dark);
            color: var(--text-on-dark);
            overflow: hidden;
            display: flex;
            align-items: center;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.42;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(27, 27, 27, 0.92) 0%, rgba(27, 27, 27, 0.55) 55%, rgba(158, 43, 37, 0.38) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding: 84px 0;
        }

        .hero-content h1 {
            color: #fff;
            font-size: 40px;
            letter-spacing: 0.02em;
            margin-bottom: 16px;
            max-width: 780px;
        }

        .hero-sub {
            font-size: 17px;
            color: rgba(246, 243, 236, 0.78);
            max-width: 680px;
            margin-bottom: 26px;
            line-height: 2;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }

        .hero-actions .btn-outline-gold {
            border-color: rgba(198, 161, 91, 0.7);
        }

        .countdown-box {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(246, 243, 236, 0.1);
            padding: 12px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(246, 243, 236, 0.18);
            margin-top: 18px;
            font-size: 14px;
        }

        .countdown-box .cd-label {
            color: rgba(246, 243, 236, 0.65);
            letter-spacing: 0.04em;
        }

        .countdown-box .cd-timer {
            font-weight: 700;
            font-size: 18px;
            letter-spacing: 0.06em;
            color: var(--accent-gold);
            font-variant-numeric: tabular-nums;
        }

        .live-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent-red);
            color: #fff;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.08em;
            border-radius: 2px;
            margin-bottom: 14px;
            text-transform: uppercase;
        }

        .live-badge .dot {
            width: 8px;
            height: 8px;
            background: #fff;
            border-radius: 50%;
            animation: pulse-dot 1.5s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.4;
                transform: scale(0.6);
            }
        }

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

        .sell-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 26px 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
            height: 100%;
        }

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

        .sell-card .icon-box {
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(158, 43, 37, 0.07);
            color: var(--accent-red);
            font-size: 22px;
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
        }

        .sell-card h3 {
            font-size: 18px;
            margin-bottom: 8px;
        }

        .sell-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.8;
        }

        .gateway-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .gateway-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px 18px;
            text-align: center;
            transition: all var(--transition-fast);
            cursor: pointer;
            box-shadow: var(--shadow-sm);
            height: 100%;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        .gateway-item:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .gateway-item .gi-icon {
            font-size: 30px;
            margin-bottom: 10px;
            color: var(--accent-red);
        }

        .gateway-item .gi-name {
            font-weight: 600;
            font-size: 15px;
            color: var(--text-dark);
            margin-bottom: 4px;
        }

        .gateway-item .gi-count {
            font-size: 12px;
            color: var(--text-muted);
        }

        .news-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .news-item {
            display: flex;
            gap: 16px;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 14px 16px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
            align-items: center;
        }

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

        .news-item img {
            width: 96px;
            height: 72px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }

        .news-item .ni-content {
            flex: 1;
            min-width: 0;
        }

        .news-item .ni-title {
            font-weight: 600;
            font-size: 15px;
            color: var(--text-dark);
            margin-bottom: 4px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-item .ni-meta {
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .topic-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
        }

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

        .topic-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }

        .topic-card .tc-body {
            padding: 16px 18px;
        }

        .topic-card .tc-title {
            font-weight: 600;
            font-size: 16px;
            color: var(--text-dark);
            margin-bottom: 6px;
            line-height: 1.45;
        }

        .topic-card .tc-desc {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        .metrics-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            background: rgba(246, 243, 236, 0.06);
            border: 1px solid rgba(246, 243, 236, 0.12);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition-fast);
        }

        .metric-card:hover {
            border-color: rgba(198, 161, 91, 0.4);
            background: rgba(246, 243, 236, 0.1);
        }

        .metric-card .stat-number {
            color: var(--accent-gold);
        }

        .metric-card .stat-label {
            color: rgba(246, 243, 236, 0.6);
        }

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

        .testimonial-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

        .testimonial-card .quote {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.9;
            margin-bottom: 0;
            font-style: italic;
        }

        .testimonial-card .user {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 600;
        }

        .testimonial-card .user .avatar {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: rgba(158, 43, 37, 0.12);
            color: var(--accent-red);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
        }

        .brand-intro {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 36px 32px;
            box-shadow: var(--shadow-sm);
            max-width: 920px;
            margin: 0 auto;
        }

        .brand-intro p {
            font-size: 15.5px;
            line-height: 2.1;
            color: var(--text-soft);
            margin-bottom: 16px;
        }

        .brand-intro p:last-child {
            margin-bottom: 0;
        }

        .gameplay-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 18px;
        }

        .gameplay-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }

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

        .gameplay-item .gp-num {
            font-family: var(--font-serif);
            font-size: 26px;
            font-weight: 700;
            color: var(--accent-gold);
            flex-shrink: 0;
            line-height: 1.2;
        }

        .gameplay-item .gp-content h4 {
            font-size: 16px;
            margin-bottom: 5px;
            font-weight: 700;
        }

        .gameplay-item .gp-content p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.8;
        }

        .fair-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px 22px;
        }

        .fair-list li {
            display: flex;
            gap: 10px;
            align-items: flex-start;
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.8;
        }

        .fair-list li .check {
            color: var(--accent-gold);
            font-weight: 700;
            flex-shrink: 0;
            font-size: 16px;
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            margin-bottom: 10px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
        }

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

        .faq-q {
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            color: var(--text-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 14px;
            user-select: none;
        }

        .faq-q .faq-icon {
            transition: transform var(--transition-fast);
            color: var(--accent-red);
            font-size: 18px;
            flex-shrink: 0;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-med), padding var(--transition-med);
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.9;
            padding: 0 20px;
        }

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

        .cta-panel {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            border-radius: var(--radius-md);
            padding: 44px 36px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-panel::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 180px;
            height: 180px;
            border: 1px solid rgba(198, 161, 91, 0.25);
            border-radius: 50%;
        }

        .cta-panel::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 120px;
            height: 120px;
            border: 1px solid rgba(198, 161, 91, 0.18);
            border-radius: 50%;
        }

        .cta-panel h2 {
            color: #fff;
            font-size: 26px;
            margin-bottom: 12px;
        }

        .cta-panel p {
            color: rgba(246, 243, 236, 0.68);
            max-width: 560px;
            margin: 0 auto 24px;
            font-size: 15px;
        }

        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }

        .form-group {
            margin-bottom: 16px;
            text-align: left;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 6px;
            color: rgba(246, 243, 236, 0.7);
        }

        .form-group input {
            width: 100%;
            padding: 10px 0;
            background: transparent;
            border: none;
            border-bottom: 1.5px solid rgba(246, 243, 236, 0.25);
            color: #fff;
            font-size: 15px;
            outline: none;
            transition: border-color var(--transition-fast);
        }

        .form-group input::placeholder {
            color: rgba(246, 243, 236, 0.35);
        }

        .form-group input:focus {
            border-bottom-color: var(--accent-gold);
        }

        .form-privacy {
            font-size: 12px;
            color: rgba(246, 243, 236, 0.4);
            margin-top: 10px;
        }

        .site-footer {
            background: #141414;
            color: rgba(246, 243, 236, 0.55);
            padding: 44px 0 26px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 28px;
            margin-bottom: 26px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 12px;
            font-family: var(--font-sans);
        }

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

        .footer-col ul li {
            margin-bottom: 6px;
            font-size: 13px;
        }

        .footer-col ul li a {
            color: rgba(246, 243, 236, 0.5);
        }

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

        .footer-brand {
            font-family: var(--font-serif);
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .footer-legal {
            border-top: 1px solid rgba(246, 243, 236, 0.1);
            padding-top: 18px;
            font-size: 12px;
            line-height: 1.9;
            text-align: center;
            color: rgba(246, 243, 236, 0.38);
        }

        .footer-legal a {
            color: rgba(246, 243, 236, 0.55);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

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

        .fade-in {
            opacity: 0;
            transform: translateY(18px);
            transition: opacity 0.55s ease, transform 0.55s ease;
        }

        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        @media (max-width: 1024px) {
            :root {
                --nav-width: 210px;
                --space-section: 52px;
            }

            h1 {
                font-size: 30px;
            }

            .section-title {
                font-size: 24px;
            }

            .sell-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .gateway-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .metrics-row {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-width: 0px;
                --space-section: 40px;
                --space-section-mobile: 32px;
            }

            .sidebar {
                transform: translateX(-100%);
                width: 260px;
                box-shadow: 4px 0 24px rgba(0, 0, 0, 0.3);
            }

            .sidebar.open {
                transform: translateX(0);
            }

            .main-wrapper {
                margin-left: 0;
            }

            .mobile-topbar {
                display: flex;
                align-items: center;
                justify-content: space-between;
                padding: 12px 18px;
                background: var(--bg-dark);
                color: #fff;
                position: sticky;
                top: 0;
                z-index: 90;
                height: 56px;
                box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
            }

            .mobile-topbar .mt-logo {
                font-family: var(--font-serif);
                font-size: 18px;
                font-weight: 700;
                color: #fff;
                letter-spacing: 0.03em;
            }

            .mobile-topbar .mt-menu-btn {
                background: none;
                border: none;
                color: #fff;
                font-size: 24px;
                cursor: pointer;
                padding: 4px 8px;
                outline: none;
            }

            .mobile-overlay {
                display: none;
                position: fixed;
                inset: 0;
                background: rgba(27, 27, 27, 0.5);
                z-index: 85;
            }

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

            .container {
                padding: 0 16px;
            }

            section {
                padding: var(--space-section-mobile) 0;
            }

            h1 {
                font-size: 26px;
            }

            .section-title {
                font-size: 21px;
            }

            .hero-content {
                padding: 48px 0 56px;
            }

            .hero-content h1 {
                font-size: 27px;
            }

            .hero-sub {
                font-size: 15px;
                line-height: 1.8;
            }

            .sell-grid {
                grid-template-columns: 1fr;
            }

            .gateway-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }

            .news-row {
                grid-template-columns: 1fr;
            }

            .topic-grid {
                grid-template-columns: 1fr;
            }

            .metrics-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .testimonial-grid {
                grid-template-columns: 1fr;
            }

            .gameplay-grid {
                grid-template-columns: 1fr;
            }

            .fair-list {
                grid-template-columns: 1fr;
            }

            .cta-panel {
                padding: 32px 20px;
            }

            .cta-panel h2 {
                font-size: 21px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }

            .brand-intro {
                padding: 24px 18px;
            }

            .stat-number {
                font-size: 28px;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 23px;
            }

            .hero-sub {
                font-size: 14px;
            }

            .section-title {
                font-size: 19px;
            }

            .btn {
                padding: 9px 18px;
                font-size: 14px;
            }

            .gateway-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }

            .gateway-item .gi-name {
                font-size: 13px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .countdown-box {
                font-size: 12px;
                padding: 10px 14px;
            }

            .countdown-box .cd-timer {
                font-size: 15px;
            }

            .news-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .news-item img {
                width: 100%;
                height: auto;
                max-height: 160px;
                object-fit: cover;
            }

            .metrics-row {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }

            .metric-card {
                padding: 16px 10px;
            }

            .sell-card {
                padding: 20px 16px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #F6F3EC;
            --bg-white: #FFFFFF;
            --bg-dark: #1B1B1B;
            --bg-card: #FFFFFF;
            --text-dark: #1B1B1B;
            --text-soft: #4A4540;
            --text-muted: #7A716A;
            --text-on-dark: #F6F3EC;
            --accent-red: #9E2B25;
            --accent-red-hover: #7C1F1A;
            --accent-gold: #C6A15B;
            --accent-gold-light: #E8D5B5;
            --border-light: #E8E3DA;
            --border-gold: rgba(198, 161, 91, 0.55);
            --shadow-sm: 0 1px 4px rgba(27, 27, 27, 0.05);
            --shadow-md: 0 4px 18px rgba(27, 27, 27, 0.07);
            --shadow-lg: 0 12px 32px rgba(27, 27, 27, 0.1);
            --radius-sm: 3px;
            --radius-md: 5px;
            --radius-lg: 7px;
            --nav-width: 252px;
            --transition-fast: 0.22s ease;
            --transition-med: 0.32s ease;
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', 'STSong', serif;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', 'Helvetica Neue', Arial, sans-serif;
            --space-section: 72px;
            --space-section-mobile: 44px;
        }

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

        body {
            margin: 0;
            padding: 0;
            background: var(--bg-primary);
            color: var(--text-dark);
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.85;
            letter-spacing: 0.01em;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent-red);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        * {
            box-sizing: border-box;
        }

        /* ==== Sidebar ==== */
        .app-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: var(--bg-dark);
            display: flex;
            flex-direction: column;
            z-index: 100;
            box-shadow: 2px 0 16px rgba(27, 27, 27, 0.12);
        }
        .sidebar-logo {
            padding: 22px 24px 18px;
            border-bottom: 1px solid rgba(246, 243, 236, 0.12);
            flex-shrink: 0;
        }
        .sidebar-logo a {
            font-family: var(--font-serif);
            font-size: 22px;
            font-weight: 700;
            color: var(--text-on-dark);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.04em;
        }
        .sidebar-logo a:hover {
            color: var(--accent-gold);
        }
        .sidebar-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: var(--accent-red);
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
            font-family: var(--font-sans);
        }
        .sidebar-nav {
            flex: 1;
            padding: 18px 14px;
            overflow-y: auto;
        }
        .sidebar-nav .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            color: rgba(246, 243, 236, 0.38);
            margin: 10px 10px 7px;
            font-weight: 600;
        }
        .sidebar-nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .sidebar-nav li {
            margin-bottom: 2px;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 11px;
            padding: 10px 12px;
            border-radius: var(--radius-sm);
            color: rgba(246, 243, 236, 0.72);
            font-size: 15px;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
        }
        .sidebar-nav a:hover {
            background: rgba(246, 243, 236, 0.06);
            color: var(--text-on-dark);
        }
        .sidebar-nav a.active {
            background: rgba(158, 43, 37, 0.18);
            color: var(--text-on-dark);
            font-weight: 600;
        }
        .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--accent-gold);
            border-radius: 0 2px 2px 0;
        }
        .sidebar-nav a .nav-icon {
            font-size: 16px;
            width: 20px;
            text-align: center;
            flex-shrink: 0;
            opacity: 0.85;
        }
        .sidebar-footer {
            padding: 14px 18px 18px;
            border-top: 1px solid rgba(246, 243, 236, 0.12);
            font-size: 12px;
            color: rgba(246, 243, 236, 0.38);
            flex-shrink: 0;
            line-height: 1.6;
        }
        .sidebar-footer span {
            display: block;
        }

        .main-wrapper {
            margin-left: var(--nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ==== Mobile Topbar ==== */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--bg-dark);
            color: var(--text-on-dark);
            z-index: 99;
            align-items: center;
            padding: 0 18px;
            gap: 12px;
            box-shadow: 0 2px 12px rgba(27, 27, 27, 0.18);
        }
        .mobile-topbar .logo-text {
            font-family: var(--font-serif);
            font-size: 18px;
            font-weight: 700;
            color: var(--text-on-dark);
            letter-spacing: 0.03em;
        }
        .mobile-topbar .hamburger {
            background: none;
            border: none;
            color: var(--text-on-dark);
            font-size: 22px;
            cursor: pointer;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            line-height: 1;
        }
        .mobile-topbar .hamburger:hover {
            background: rgba(246, 243, 236, 0.12);
        }

        .mobile-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(27, 27, 27, 0.5);
            z-index: 98;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .mobile-overlay.show {
            opacity: 1;
            display: block;
        }

        /* ==== Container & Sections ==== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 28px;
        }
        .section {
            padding: var(--space-section) 0;
        }
        .section-alt {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-on-dark);
        }
        .section-tight {
            padding: 36px 0;
        }

        .sec-label {
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.1em;
            color: var(--accent-red);
            text-transform: uppercase;
            margin-bottom: 10px;
        }
        .sec-title {
            font-family: var(--font-serif);
            font-size: 28px;
            line-height: 1.4;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 14px;
            letter-spacing: 0.02em;
        }
        .sec-title.on-dark {
            color: var(--text-on-dark);
        }
        .sec-sub {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.85;
            max-width: 720px;
            margin: 0 0 24px;
        }
        .sec-sub.on-dark {
            color: rgba(246, 243, 236, 0.7);
        }

        /* ==== Hero (Category) ==== */
        .cat-hero {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 52px 0 46px;
            position: relative;
            overflow: hidden;
        }
        .cat-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: -120px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(198, 161, 91, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }
        .cat-hero h1 {
            font-family: var(--font-serif);
            font-size: 36px;
            font-weight: 700;
            line-height: 1.35;
            margin: 0 0 12px;
            color: var(--text-on-dark);
            letter-spacing: 0.03em;
        }
        .cat-hero .hero-sub {
            font-size: 16px;
            color: rgba(246, 243, 236, 0.72);
            max-width: 640px;
            line-height: 1.85;
            margin: 0 0 22px;
        }
        .hero-meta {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            font-size: 14px;
            color: rgba(246, 243, 236, 0.55);
        }
        .hero-meta span strong {
            display: block;
            font-size: 20px;
            font-weight: 700;
            color: var(--accent-gold);
            font-family: var(--font-serif);
        }

        /* ==== Filter Bar ==== */
        .filter-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 14px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-light);
            margin-bottom: 28px;
        }
        .filter-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-tag {
            padding: 6px 14px;
            border: 1px solid var(--border-light);
            border-radius: 999px;
            font-size: 13px;
            color: var(--text-soft);
            cursor: pointer;
            transition: all var(--transition-fast);
            background: var(--bg-white);
        }
        .filter-tag:hover {
            border-color: var(--accent-gold);
            color: var(--accent-red);
        }
        .filter-tag.active {
            background: var(--accent-red);
            border-color: var(--accent-red);
            color: #fff;
        }
        .filter-count {
            font-size: 13px;
            color: var(--text-muted);
            white-space: nowrap;
        }

        /* ==== Strategy Cards ==== */
        .strategy-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .strategy-card {
            display: flex;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-med);
            cursor: pointer;
        }
        .strategy-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--border-gold);
            transform: translateY(-3px);
        }
        .strategy-card .card-img {
            flex-shrink: 0;
            width: 260px;
            min-height: 180px;
            overflow: hidden;
            position: relative;
        }
        .strategy-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .strategy-card:hover .card-img img {
            transform: scale(1.04);
        }
        .strategy-card .card-body {
            flex: 1;
            padding: 20px 24px;
            display: flex;
            flex-direction: column;
        }
        .card-category {
            font-size: 12px;
            color: var(--accent-red);
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .card-title {
            font-family: var(--font-serif);
            font-size: 19px;
            font-weight: 700;
            line-height: 1.45;
            margin: 0 0 8px;
            color: var(--text-dark);
        }
        .card-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin: 0 0 12px;
            flex: 1;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 12px;
            color: var(--text-muted);
        }
        .card-meta .heat {
            color: var(--accent-red);
            font-weight: 600;
        }
        .card-meta .date {
            color: var(--text-muted);
        }
        .card-tag {
            display: inline-block;
            padding: 2px 10px;
            background: rgba(198, 161, 91, 0.12);
            color: #8A6D3B;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 500;
        }

        /* ==== Editor Picks ==== */
        .editor-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
        }
        .editor-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-med);
        }
        .editor-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--border-gold);
            transform: translateY(-3px);
        }
        .editor-card .editor-img {
            width: 100%;
            height: 170px;
            overflow: hidden;
        }
        .editor-card .editor-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .editor-card:hover .editor-img img {
            transform: scale(1.04);
        }
        .editor-card .editor-body {
            padding: 16px 18px;
        }
        .editor-card .editor-title {
            font-family: var(--font-serif);
            font-size: 16px;
            font-weight: 700;
            line-height: 1.5;
            margin: 0 0 6px;
            color: var(--text-dark);
        }
        .editor-card .editor-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* ==== Data Widget ==== */
        .data-widget {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }
        .data-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 22px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-med);
        }
        .data-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-gold);
        }
        .data-item .data-num {
            font-family: var(--font-serif);
            font-size: 36px;
            font-weight: 700;
            color: var(--accent-red);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .data-item .data-label {
            font-size: 14px;
            color: var(--text-soft);
            font-weight: 500;
        }
        .data-item .data-desc {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 6px;
            line-height: 1.6;
        }

        /* ==== FAQ ==== */
        .faq-list {
            max-width: 820px;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            margin-bottom: 10px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--border-gold);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 16px 20px;
            text-align: left;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition-fast);
            line-height: 1.6;
        }
        .faq-question:hover {
            color: var(--accent-red);
        }
        .faq-question .faq-icon {
            font-size: 18px;
            color: var(--accent-gold);
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            color: var(--accent-red);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
        }
        .faq-answer p {
            padding: 0 20px 16px;
            margin: 0;
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.75;
        }

        /* ==== CTA ==== */
        .cta-banner {
            background: var(--bg-dark);
            border-radius: var(--radius-lg);
            padding: 40px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            color: var(--text-on-dark);
            position: relative;
            overflow: hidden;
        }
        .cta-banner::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(198, 161, 91, 0.18) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-banner .cta-text h3 {
            font-family: var(--font-serif);
            font-size: 24px;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text-on-dark);
        }
        .cta-banner .cta-text p {
            font-size: 15px;
            color: rgba(246, 243, 236, 0.7);
            margin: 0;
            line-height: 1.75;
        }

        /* ==== Buttons ==== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
            line-height: 1.4;
            text-align: center;
        }
        .btn-primary {
            background: var(--accent-red);
            color: #fff;
            border-color: var(--accent-red);
        }
        .btn-primary:hover {
            background: var(--accent-red-hover);
            border-color: var(--accent-red-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(158, 43, 37, 0.3);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-dark);
            border-color: var(--text-dark);
        }
        .btn-outline:hover {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            border-color: var(--bg-dark);
            transform: translateY(-2px);
        }
        .btn-outline.on-dark {
            color: var(--text-on-dark);
            border-color: rgba(246, 243, 236, 0.5);
        }
        .btn-outline.on-dark:hover {
            background: rgba(246, 243, 236, 0.12);
            border-color: var(--text-on-dark);
            color: var(--text-on-dark);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }
        .btn-gold {
            background: var(--accent-gold);
            color: #1B1B1B;
            border-color: var(--accent-gold);
        }
        .btn-gold:hover {
            background: #B8956A;
            border-color: #B8956A;
            color: #1B1B1B;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(198, 161, 91, 0.35);
        }

        /* ==== Footer ==== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(246, 243, 236, 0.75);
            padding: 48px 0 28px;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand {
            font-family: var(--font-serif);
            font-size: 20px;
            font-weight: 700;
            color: var(--text-on-dark);
            margin-bottom: 8px;
            letter-spacing: 0.03em;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-on-dark);
            margin: 0 0 12px;
            letter-spacing: 0.04em;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col li {
            margin-bottom: 7px;
        }
        .footer-col a {
            color: rgba(246, 243, 236, 0.55);
            font-size: 13px;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--accent-gold);
        }
        .footer-legal {
            border-top: 1px solid rgba(246, 243, 236, 0.12);
            padding-top: 20px;
            font-size: 12px;
            color: rgba(246, 243, 236, 0.42);
            line-height: 1.8;
        }
        .footer-legal p {
            margin: 3px 0;
        }
        .footer-legal a {
            color: rgba(246, 243, 236, 0.5);
        }
        .footer-legal a:hover {
            color: var(--accent-gold);
        }

        /* ==== Scroll Fade ==== */
        .fade-in {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ==== Breadcrumb ==== */
        .breadcrumb {
            font-size: 13px;
            color: rgba(246, 243, 236, 0.55);
            margin-bottom: 14px;
        }
        .breadcrumb a {
            color: rgba(246, 243, 236, 0.55);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--accent-gold);
        }
        .breadcrumb .sep {
            margin: 0 6px;
            color: rgba(246, 243, 236, 0.3);
        }

        /* ==== Anchor Brand Section ==== */
        .brand-intro-block {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 32px;
            box-shadow: var(--shadow-sm);
        }
        .brand-intro-block p {
            font-size: 15px;
            color: var(--text-soft);
            line-height: 1.9;
            margin: 0 0 12px;
        }
        .brand-intro-block p:last-child {
            margin-bottom: 0;
        }

        /* ==== Responsive ==== */
        @media (max-width: 1024px) {
            :root {
                --nav-width: 210px;
                --space-section: 52px;
            }
            .strategy-card .card-img {
                width: 210px;
            }
            .container {
                padding: 0 20px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-width: 0px;
                --space-section: 40px;
                --space-section-mobile: 32px;
            }
            .app-sidebar {
                transform: translateX(-100%);
                transition: transform 0.3s ease;
                width: 260px;
                z-index: 100;
            }
            .app-sidebar.open {
                transform: translateX(0);
            }
            .mobile-topbar {
                display: flex;
            }
            .mobile-overlay.show {
                display: block;
            }
            .main-wrapper {
                margin-left: 0;
                padding-top: 60px;
            }
            .cat-hero {
                padding: 32px 0 36px;
            }
            .cat-hero h1 {
                font-size: 26px;
            }
            .sec-title {
                font-size: 22px;
            }
            .strategy-card {
                flex-direction: column;
            }
            .strategy-card .card-img {
                width: 100%;
                min-height: 160px;
            }
            .strategy-card .card-body {
                padding: 16px 18px;
            }
            .card-title {
                font-size: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .cta-banner {
                padding: 28px 24px;
                flex-direction: column;
                text-align: center;
            }
            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-meta {
                gap: 16px;
            }
            .hero-meta span strong {
                font-size: 17px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .cat-hero h1 {
                font-size: 22px;
            }
            .sec-title {
                font-size: 19px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .editor-grid {
                grid-template-columns: 1fr;
            }
            .data-widget {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .data-item .data-num {
                font-size: 28px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 14px;
            }
            .brand-intro-block {
                padding: 20px 18px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #F6F3EC;
            --bg-white: #FFFFFF;
            --bg-dark: #1B1B1B;
            --bg-card: #FFFFFF;
            --text-dark: #1B1B1B;
            --text-soft: #4A4540;
            --text-muted: #7A716A;
            --text-on-dark: #F6F3EC;
            --accent-red: #9E2B25;
            --accent-red-hover: #7C1F1A;
            --accent-gold: #C6A15B;
            --accent-gold-light: #E8D5B5;
            --border-light: #E8E3DA;
            --border-gold: rgba(198, 161, 91, 0.55);
            --shadow-sm: 0 1px 4px rgba(27, 27, 27, 0.05);
            --shadow-md: 0 4px 18px rgba(27, 27, 27, 0.07);
            --shadow-lg: 0 12px 32px rgba(27, 27, 27, 0.1);
            --radius-sm: 3px;
            --radius-md: 5px;
            --radius-lg: 7px;
            --nav-width: 252px;
            --transition-fast: 0.22s ease;
            --transition-med: 0.32s ease;
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', 'STSong', serif;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', 'Helvetica Neue', Arial, sans-serif;
            --space-section: 72px;
            --space-section-mobile: 44px;
        }

        * {
            box-sizing: border-box;
        }

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

        body {
            margin: 0;
            padding: 0;
            background: var(--bg-primary);
            color: var(--text-dark);
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.85;
            letter-spacing: 0.01em;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

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

        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--nav-width);
            background: var(--bg-dark);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            overflow: hidden;
        }

        .sidebar-logo {
            padding: 22px 24px 18px;
            border-bottom: 1px solid rgba(246, 243, 236, 0.12);
            flex-shrink: 0;
        }

        .sidebar-logo a {
            font-family: var(--font-serif);
            font-size: 22px;
            font-weight: 700;
            color: var(--text-on-dark);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.04em;
        }

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

        .sidebar-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: var(--accent-red);
            color: #fff;
            font-size: 16px;
            font-weight: 800;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
            font-family: var(--font-sans);
        }

        .sidebar-nav {
            flex: 1;
            padding: 18px 14px;
            overflow-y: auto;
        }

        .sidebar-nav .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            color: rgba(246, 243, 236, 0.38);
            margin: 10px 10px 7px;
            font-weight: 600;
        }

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

        .sidebar-nav li {
            margin-bottom: 2px;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 11px;
            padding: 10px 12px;
            border-radius: var(--radius-sm);
            color: rgba(246, 243, 236, 0.72);
            font-size: 15px;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
        }

        .sidebar-nav a:hover {
            background: rgba(246, 243, 236, 0.06);
            color: var(--text-on-dark);
        }

        .sidebar-nav a.active {
            background: rgba(158, 43, 37, 0.18);
            color: var(--text-on-dark);
            font-weight: 600;
        }

        .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--accent-gold);
            border-radius: 0 2px 2px 0;
        }

        .sidebar-nav a .nav-icon {
            font-size: 16px;
            width: 20px;
            text-align: center;
            flex-shrink: 0;
            opacity: 0.85;
        }

        .sidebar-footer {
            padding: 14px 18px 18px;
            border-top: 1px solid rgba(246, 243, 236, 0.12);
            font-size: 12px;
            color: rgba(246, 243, 236, 0.38);
            flex-shrink: 0;
            line-height: 1.6;
        }

        .sidebar-footer span {
            display: block;
        }

        .main-wrapper {
            margin-left: var(--nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .mobile-topbar {
            display: none;
        }

        .mobile-overlay {
            display: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 28px;
        }

        .site-footer {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 48px 0 28px;
            margin-top: auto;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2.2fr 1fr 1fr 1.4fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(246, 243, 236, 0.1);
        }

        .site-footer h4 {
            font-family: var(--font-serif);
            font-size: 15px;
            font-weight: 600;
            color: var(--accent-gold);
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }

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

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

        .site-footer ul li a {
            color: rgba(246, 243, 236, 0.62);
            font-size: 14px;
            transition: color var(--transition-fast);
        }

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

        .footer-brand {
            font-family: var(--font-serif);
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-on-dark);
        }

        .footer-legal {
            padding-top: 22px;
            font-size: 12px;
            color: rgba(246, 243, 236, 0.4);
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            align-items: center;
        }

        .footer-legal p {
            margin: 0;
        }

        .footer-legal a {
            color: rgba(246, 243, 236, 0.5);
            transition: color var(--transition-fast);
        }

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

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

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

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

        .section-heading {
            margin-bottom: 36px;
        }

        .section-heading h2 {
            font-family: var(--font-serif);
            font-size: 28px;
            font-weight: 700;
            margin: 0 0 10px;
            color: var(--text-dark);
            letter-spacing: 0.02em;
        }

        .section-heading .section-sub {
            color: var(--text-muted);
            font-size: 15px;
            max-width: 620px;
            line-height: 1.75;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
            text-align: center;
            justify-content: center;
        }

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

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

        .btn-outline {
            background: transparent;
            color: var(--text-dark);
            border-color: var(--text-dark);
        }

        .btn-outline:hover {
            background: rgba(27, 27, 27, 0.05);
            transform: translateY(-1px);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
        }

        .btn-gold-outline {
            background: transparent;
            color: var(--accent-gold);
            border-color: var(--accent-gold);
        }

        .btn-gold-outline:hover {
            background: rgba(198, 161, 91, 0.1);
            color: var(--accent-gold);
            transform: translateY(-1px);
        }

        .card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-med);
            overflow: hidden;
        }

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

        .card-image {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            background: #e8e3da;
        }

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

        .card-title {
            font-family: var(--font-serif);
            font-size: 18px;
            font-weight: 600;
            margin: 0 0 8px;
            line-height: 1.5;
            color: var(--text-dark);
        }

        .card-summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin: 0 0 14px;
        }

        .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
            align-items: center;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.02em;
        }

        .badge-red {
            background: rgba(158, 43, 37, 0.08);
            color: var(--accent-red);
        }

        .badge-gold {
            background: rgba(198, 161, 91, 0.12);
            color: #8B6D3F;
        }

        .badge-dark {
            background: rgba(27, 27, 27, 0.06);
            color: var(--text-soft);
        }

        .tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 13px;
            border: 1px solid var(--border-light);
            background: var(--bg-white);
            color: var(--text-soft);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .tag:hover {
            border-color: var(--accent-gold);
            color: #8B6D3F;
            background: rgba(198, 161, 91, 0.06);
        }

        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
            padding: 16px 20px;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }

        .filter-bar select {
            padding: 8px 14px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            background: var(--bg-white);
            color: var(--text-dark);
            font-size: 14px;
            min-width: 130px;
            cursor: pointer;
            transition: border-color var(--transition-fast);
        }

        .filter-bar select:focus {
            outline: none;
            border-color: var(--accent-gold);
        }

        .filter-bar .filter-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            margin-right: 4px;
            white-space: nowrap;
        }

        .data-card {
            text-align: center;
            padding: 28px 18px;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-med);
        }

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

        .data-card .data-value {
            font-family: var(--font-serif);
            font-size: 36px;
            font-weight: 700;
            color: var(--accent-red);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .data-card .data-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
        }

        .data-card .data-unit {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 400;
        }

        .horizontal-card {
            display: flex;
            gap: 18px;
            align-items: flex-start;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-med);
            margin-bottom: 14px;
        }

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

        .horizontal-card .hc-image {
            width: 180px;
            height: 110px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
            background: #e8e3da;
        }

        .horizontal-card .hc-content {
            flex: 1;
            min-width: 0;
        }

        .horizontal-card .hc-title {
            font-family: var(--font-serif);
            font-size: 17px;
            font-weight: 600;
            margin: 0 0 6px;
            color: var(--text-dark);
        }

        .horizontal-card .hc-summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 10px;
        }

        .feature-block {
            display: flex;
            gap: 32px;
            align-items: center;
        }

        .feature-block .feature-image {
            flex: 0 0 400px;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .feature-block .feature-text {
            flex: 1;
        }

        .feature-block .feature-text h3 {
            font-family: var(--font-serif);
            font-size: 24px;
            font-weight: 700;
            margin: 0 0 14px;
            color: var(--text-dark);
        }

        .feature-block .feature-text p {
            color: var(--text-soft);
            line-height: 1.85;
            margin-bottom: 14px;
        }

        .accordion-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            margin-bottom: 10px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .accordion-item:focus-within {
            border-color: var(--accent-gold);
        }

        .accordion-header {
            padding: 16px 20px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 15px;
            color: var(--text-dark);
            transition: background var(--transition-fast);
            user-select: none;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
        }

        .accordion-header:hover {
            background: rgba(246, 243, 236, 0.5);
        }

        .accordion-header .accordion-icon {
            font-size: 14px;
            color: var(--accent-gold);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

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

        .accordion-body {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.8;
            display: none;
        }

        .accordion-item.open .accordion-body {
            display: block;
        }

        .editor-pick {
            display: flex;
            gap: 14px;
            align-items: center;
            padding: 14px 18px;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-med);
            margin-bottom: 10px;
        }

        .editor-pick:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-md);
        }

        .editor-pick .ep-icon {
            width: 36px;
            height: 36px;
            background: rgba(158, 43, 37, 0.08);
            color: var(--accent-red);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .editor-pick .ep-text {
            flex: 1;
        }

        .editor-pick .ep-title {
            font-weight: 600;
            font-size: 14px;
            color: var(--text-dark);
            margin: 0 0 2px;
        }

        .editor-pick .ep-meta {
            font-size: 12px;
            color: var(--text-muted);
        }

        .cta-section {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 56px 0;
        }

        .cta-section h2 {
            font-family: var(--font-serif);
            font-size: 28px;
            font-weight: 700;
            margin: 0 0 12px;
            color: var(--text-on-dark);
        }

        .cta-section p {
            color: rgba(246, 243, 236, 0.65);
            max-width: 560px;
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .cta-section .btn-primary {
            background: var(--accent-red);
            color: #fff;
            border-color: var(--accent-red);
        }

        .brand-intro-text {
            font-family: var(--font-serif);
            font-size: 16px;
            line-height: 2.0;
            color: var(--text-soft);
            background: var(--bg-white);
            padding: 28px 32px;
            border-left: 4px solid var(--accent-gold);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            box-shadow: var(--shadow-sm);
        }

        .section-divider {
            border-top: 1px solid var(--border-light);
            margin: 0;
        }

        .reveal-fade {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .reveal-fade.visible {
            opacity: 1;
            transform: translateY(0);
        }

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

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

        .text-muted {
            color: var(--text-muted);
        }

        .mb-0 {
            margin-bottom: 0;
        }

        .mb-1 {
            margin-bottom: 8px;
        }

        .mb-2 {
            margin-bottom: 16px;
        }

        .mb-3 {
            margin-bottom: 24px;
        }

        .mt-2 {
            margin-top: 16px;
        }

        .mt-3 {
            margin-top: 24px;
        }

        @media screen and (max-width: 1024px) {
            :root {
                --nav-width: 210px;
                --space-section: 52px;
            }
            .container {
                padding: 0 20px;
            }
            .feature-block {
                flex-direction: column;
                gap: 20px;
            }
            .feature-block .feature-image {
                flex: 0 0 auto;
                width: 100%;
                aspect-ratio: 16/7;
            }
            .feature-block .feature-image img {
                width: 100%;
                height: 100%;
                object-fit: cover;
            }
            .horizontal-card .hc-image {
                width: 140px;
                height: 90px;
            }
        }

        @media screen and (max-width: 768px) {
            :root {
                --nav-width: 0px;
                --space-section: 40px;
                --space-section-mobile: 32px;
            }

            .sidebar {
                transform: translateX(-100%);
                transition: transform 0.3s ease;
                width: 260px;
            }

            .sidebar.open {
                transform: translateX(0);
            }

            .sidebar-close {
                position: absolute;
                top: 12px;
                right: 12px;
                background: transparent;
                border: none;
                color: var(--text-on-dark);
                font-size: 24px;
                cursor: pointer;
                z-index: 10;
                padding: 4px 8px;
                border-radius: var(--radius-sm);
            }

            .sidebar-close:hover {
                background: rgba(246, 243, 236, 0.1);
            }

            .mobile-topbar {
                display: flex;
                align-items: center;
                justify-content: space-between;
                padding: 12px 18px;
                background: var(--bg-dark);
                color: var(--text-on-dark);
                position: sticky;
                top: 0;
                z-index: 900;
                height: 60px;
                box-shadow: var(--shadow-md);
            }

            .mobile-topbar .mobile-logo {
                font-family: var(--font-serif);
                font-weight: 700;
                font-size: 18px;
                color: var(--text-on-dark);
                display: flex;
                align-items: center;
                gap: 8px;
            }

            .mobile-topbar .mobile-logo .logo-mark {
                width: 28px;
                height: 28px;
                background: var(--accent-red);
                display: inline-flex;
                align-items: center;
                justify-content: center;
                border-radius: var(--radius-sm);
                font-size: 13px;
                font-weight: 800;
                color: #fff;
            }

            .mobile-topbar .hamburger {
                background: transparent;
                border: none;
                color: var(--text-on-dark);
                font-size: 22px;
                cursor: pointer;
                padding: 4px 8px;
                border-radius: var(--radius-sm);
                transition: background var(--transition-fast);
            }

            .mobile-topbar .hamburger:hover {
                background: rgba(246, 243, 236, 0.1);
            }

            .mobile-overlay {
                display: none;
                position: fixed;
                top: 0;
                left: 0;
                right: 0;
                bottom: 0;
                background: rgba(27, 27, 27, 0.55);
                z-index: 800;
                opacity: 0;
                transition: opacity 0.3s ease;
            }

            .mobile-overlay.show {
                display: block;
                opacity: 1;
            }

            .main-wrapper {
                margin-left: 0;
            }

            .container {
                padding: 0 16px;
            }

            .section {
                padding: var(--space-section-mobile) 0;
            }

            .section-heading h2 {
                font-size: 22px;
            }

            .horizontal-card {
                flex-direction: column;
                gap: 12px;
                padding: 14px 16px;
            }

            .horizontal-card .hc-image {
                width: 100%;
                height: auto;
                aspect-ratio: 16/9;
            }

            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                padding: 14px 16px;
            }

            .filter-bar select {
                width: 100%;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }

            .footer-legal {
                flex-direction: column;
                gap: 6px;
                align-items: flex-start;
            }

            .data-card .data-value {
                font-size: 28px;
            }

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

            .cta-section h2 {
                font-size: 22px;
            }

            .brand-intro-text {
                padding: 20px 18px;
                font-size: 14px;
            }

            .card-title {
                font-size: 16px;
            }

            .horizontal-card .hc-title {
                font-size: 16px;
            }
        }

        @media screen and (max-width: 520px) {
            :root {
                --space-section: 32px;
                --space-section-mobile: 28px;
            }

            .container {
                padding: 0 12px;
            }

            .section-heading h2 {
                font-size: 19px;
            }

            .btn {
                padding: 10px 20px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }

            .btn-sm {
                width: auto;
                padding: 6px 14px;
                font-size: 12px;
            }

            .data-card .data-value {
                font-size: 24px;
            }

            .cta-section h2 {
                font-size: 20px;
            }

            .feature-block .feature-text h3 {
                font-size: 20px;
            }
        }

/* roulang page: category3 */
:root {
        --bg-primary: #F6F3EC;
        --bg-white: #FFFFFF;
        --bg-dark: #1B1B1B;
        --bg-card: #FFFFFF;
        --text-dark: #1B1B1B;
        --text-soft: #4A4540;
        --text-muted: #7A716A;
        --text-on-dark: #F6F3EC;
        --accent-red: #9E2B25;
        --accent-red-hover: #7C1F1A;
        --accent-gold: #C6A15B;
        --accent-gold-light: #E8D5B5;
        --border-light: #E8E3DA;
        --border-gold: rgba(198, 161, 91, 0.55);
        --shadow-sm: 0 1px 4px rgba(27, 27, 27, 0.05);
        --shadow-md: 0 4px 18px rgba(27, 27, 27, 0.07);
        --shadow-lg: 0 12px 32px rgba(27, 27, 27, 0.1);
        --radius-sm: 3px;
        --radius-md: 5px;
        --radius-lg: 7px;
        --nav-width: 252px;
        --transition-fast: 0.22s ease;
        --transition-med: 0.32s ease;
        --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', 'STSong', serif;
        --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', 'Helvetica Neue', Arial, sans-serif;
        --space-section: 72px;
        --space-section-mobile: 44px;
    }

    * {
        box-sizing: border-box;
    }

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

    body {
        margin: 0;
        padding: 0;
        background: var(--bg-primary);
        color: var(--text-dark);
        font-family: var(--font-sans);
        font-size: 16px;
        line-height: 1.85;
        letter-spacing: 0.01em;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

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

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

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

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

    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        width: var(--nav-width);
        height: 100vh;
        background: var(--bg-dark);
        color: var(--text-on-dark);
        display: flex;
        flex-direction: column;
        z-index: 100;
        border-right: 1px solid rgba(246, 243, 236, 0.08);
    }

    .sidebar-logo {
        padding: 22px 24px 18px;
        border-bottom: 1px solid rgba(246, 243, 236, 0.12);
        flex-shrink: 0;
    }

    .sidebar-logo a {
        font-family: var(--font-serif);
        font-size: 22px;
        font-weight: 700;
        color: var(--text-on-dark);
        display: flex;
        align-items: center;
        gap: 10px;
        letter-spacing: 0.04em;
    }

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

    .sidebar-logo .logo-mark {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 34px;
        height: 34px;
        background: var(--accent-red);
        color: #fff;
        font-size: 18px;
        font-weight: 800;
        border-radius: var(--radius-sm);
        flex-shrink: 0;
        font-family: var(--font-sans);
    }

    .sidebar-nav {
        flex: 1;
        padding: 18px 14px;
        overflow-y: auto;
    }

    .sidebar-nav .nav-label {
        font-size: 11px;
        text-transform: uppercase;
        letter-spacing: 0.12em;
        color: rgba(246, 243, 236, 0.38);
        margin: 10px 10px 7px;
        font-weight: 600;
    }

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

    .sidebar-nav li {
        margin-bottom: 2px;
    }

    .sidebar-nav a {
        display: flex;
        align-items: center;
        gap: 11px;
        padding: 10px 12px;
        border-radius: var(--radius-sm);
        color: rgba(246, 243, 236, 0.72);
        font-size: 15px;
        font-weight: 500;
        transition: all var(--transition-fast);
        position: relative;
    }

    .sidebar-nav a:hover {
        background: rgba(246, 243, 236, 0.06);
        color: var(--text-on-dark);
    }

    .sidebar-nav a.active {
        background: rgba(158, 43, 37, 0.18);
        color: var(--text-on-dark);
        font-weight: 600;
    }

    .sidebar-nav a.active::before {
        content: '';
        position: absolute;
        left: 0;
        top: 50%;
        transform: translateY(-50%);
        width: 3px;
        height: 24px;
        background: var(--accent-gold);
        border-radius: 0 2px 2px 0;
    }

    .sidebar-nav a .nav-icon {
        font-size: 16px;
        width: 20px;
        text-align: center;
        flex-shrink: 0;
        opacity: 0.85;
    }

    .sidebar-footer {
        padding: 14px 18px 18px;
        border-top: 1px solid rgba(246, 243, 236, 0.12);
        font-size: 12px;
        color: rgba(246, 243, 236, 0.38);
        flex-shrink: 0;
        line-height: 1.6;
    }

    .sidebar-footer span {
        display: block;
    }

    .main-wrapper {
        margin-left: var(--nav-width);
        min-height: 100vh;
        display: flex;
        flex-direction: column;
    }

    .mobile-topbar {
        display: none;
    }

    .mobile-overlay {
        display: none;
    }

    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 28px;
    }

    .site-main {
        flex: 1;
        padding-top: 0;
    }

    .section-block {
        padding-top: var(--space-section);
        padding-bottom: var(--space-section);
        position: relative;
    }

    .section-block.alt-bg {
        background: var(--bg-white);
        border-top: 1px solid var(--border-light);
        border-bottom: 1px solid var(--border-light);
    }

    .section-block.dark-bg {
        background: var(--bg-dark);
        color: var(--text-on-dark);
    }

    .section-label {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 0.12em;
        text-transform: uppercase;
        color: var(--accent-red);
        margin-bottom: 12px;
    }

    .section-label::before {
        content: '';
        width: 24px;
        height: 1px;
        background: var(--accent-gold);
    }

    .section-title {
        font-family: var(--font-serif);
        font-size: 28px;
        font-weight: 700;
        line-height: 1.35;
        margin: 0 0 14px;
        color: var(--text-dark);
        letter-spacing: 0.02em;
    }

    .section-desc {
        font-size: 16px;
        color: var(--text-soft);
        line-height: 1.9;
        max-width: 720px;
        margin: 0 0 24px;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 12px 26px;
        font-size: 15px;
        font-weight: 600;
        border-radius: var(--radius-sm);
        border: 1px solid transparent;
        cursor: pointer;
        transition: all var(--transition-fast);
        text-align: center;
        min-height: 44px;
        line-height: 1.3;
        letter-spacing: 0.02em;
    }

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

    .btn-primary:hover {
        background: var(--accent-red-hover);
        border-color: var(--accent-red-hover);
        color: #fff;
        transform: translateY(-1px);
        box-shadow: 0 4px 14px rgba(158, 43, 37, 0.25);
    }

    .btn-outline {
        background: transparent;
        color: var(--text-dark);
        border-color: var(--text-dark);
    }

    .btn-outline:hover {
        background: rgba(27, 27, 27, 0.05);
        color: var(--accent-red);
        border-color: var(--accent-red);
    }

    .btn-gold {
        background: transparent;
        color: var(--accent-gold);
        border-color: var(--border-gold);
    }

    .btn-gold:hover {
        background: rgba(198, 161, 91, 0.1);
        color: var(--accent-gold);
        border-color: var(--accent-gold);
    }

    /* Category header */
    .category-header {
        background: linear-gradient(135deg, #1B1B1B 0%, #2a211c 55%, #3a1f1a 100%);
        color: var(--text-on-dark);
        padding: 52px 0 46px;
        position: relative;
        overflow: hidden;
    }

    .category-header::after {
        content: '';
        position: absolute;
        top: 0;
        right: 0;
        width: 45%;
        height: 100%;
        background: linear-gradient(to left, rgba(158, 43, 37, 0.25), transparent);
        pointer-events: none;
    }

    .category-header .container {
        position: relative;
        z-index: 2;
    }

    .breadcrumb {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        color: rgba(246, 243, 236, 0.55);
        margin-bottom: 18px;
        flex-wrap: wrap;
    }

    .breadcrumb a {
        color: rgba(246, 243, 236, 0.65);
        transition: color var(--transition-fast);
    }

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

    .breadcrumb .sep {
        color: rgba(246, 243, 236, 0.3);
        font-size: 11px;
    }

    .breadcrumb .current {
        color: var(--accent-gold);
        font-weight: 500;
    }

    .category-header h1 {
        font-family: var(--font-serif);
        font-size: 36px;
        font-weight: 700;
        line-height: 1.3;
        margin: 0 0 12px;
        color: var(--text-on-dark);
        letter-spacing: 0.03em;
    }

    .category-header .header-desc {
        font-size: 16px;
        color: rgba(246, 243, 236, 0.7);
        line-height: 1.8;
        max-width: 680px;
        margin: 0;
    }

    .category-header .header-meta {
        display: flex;
        align-items: center;
        gap: 18px;
        margin-top: 18px;
        font-size: 13px;
        color: rgba(246, 243, 236, 0.55);
    }

    .category-header .header-meta span {
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }

    /* Filter bar */
    .filter-bar {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-wrap: wrap;
        padding: 16px 0;
        border-bottom: 1px solid var(--border-light);
        margin-bottom: 28px;
    }

    .filter-bar .filter-label {
        font-size: 14px;
        font-weight: 600;
        color: var(--text-soft);
        margin-right: 4px;
        white-space: nowrap;
    }

    .filter-chip {
        display: inline-flex;
        align-items: center;
        padding: 7px 16px;
        border: 1px solid var(--border-light);
        border-radius: 999px;
        font-size: 13px;
        color: var(--text-soft);
        background: var(--bg-card);
        cursor: pointer;
        transition: all var(--transition-fast);
        white-space: nowrap;
    }

    .filter-chip:hover {
        border-color: var(--accent-gold);
        color: var(--accent-red);
    }

    .filter-chip.active {
        background: var(--accent-red);
        border-color: var(--accent-red);
        color: #fff;
        font-weight: 500;
    }

    .filter-sort {
        margin-left: auto;
        display: flex;
        align-items: center;
        gap: 6px;
        font-size: 13px;
        color: var(--text-muted);
    }

    .filter-sort select {
        padding: 7px 12px;
        border: 1px solid var(--border-light);
        border-radius: var(--radius-sm);
        background: var(--bg-card);
        color: var(--text-soft);
        font-size: 13px;
        cursor: pointer;
        outline: none;
        transition: border-color var(--transition-fast);
    }

    .filter-sort select:focus {
        border-color: var(--accent-gold);
    }

    /* Article cards list */
    .article-list {
        display: flex;
        flex-direction: column;
        gap: 18px;
    }

    .article-card {
        display: flex;
        gap: 20px;
        background: var(--bg-card);
        border: 1px solid var(--border-light);
        border-radius: var(--radius-md);
        overflow: hidden;
        transition: all var(--transition-med);
        box-shadow: var(--shadow-sm);
    }

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

    .article-card .card-img {
        width: 220px;
        min-height: 170px;
        flex-shrink: 0;
        position: relative;
        overflow: hidden;
        background: #e8e3da;
    }

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

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

    .article-card .card-img .img-badge {
        position: absolute;
        top: 10px;
        left: 10px;
        background: var(--accent-red);
        color: #fff;
        font-size: 11px;
        font-weight: 600;
        padding: 3px 10px;
        border-radius: var(--radius-sm);
        letter-spacing: 0.04em;
    }

    .article-card .card-body {
        flex: 1;
        padding: 18px 20px 16px 0;
        display: flex;
        flex-direction: column;
    }

    .article-card .card-title {
        font-family: var(--font-serif);
        font-size: 19px;
        font-weight: 700;
        line-height: 1.45;
        margin: 0 0 8px;
        color: var(--text-dark);
        transition: color var(--transition-fast);
    }

    .article-card:hover .card-title {
        color: var(--accent-red);
    }

    .article-card .card-desc {
        font-size: 14px;
        color: var(--text-soft);
        line-height: 1.75;
        margin: 0 0 12px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .article-card .card-meta {
        display: flex;
        align-items: center;
        gap: 14px;
        font-size: 12px;
        color: var(--text-muted);
        margin-top: auto;
        flex-wrap: wrap;
    }

    .article-card .card-meta .tag {
        background: rgba(198, 161, 91, 0.14);
        color: #8a6d3b;
        padding: 3px 10px;
        border-radius: var(--radius-sm);
        font-weight: 500;
        font-size: 11px;
    }

    .article-card .card-meta .heat {
        display: inline-flex;
        align-items: center;
        gap: 4px;
    }

    .article-card .card-meta .heat::before {
        content: '🔥';
        font-size: 11px;
    }

    /* Ranking panel */
    .ranking-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }

    .ranking-card {
        background: var(--bg-card);
        border: 1px solid var(--border-light);
        border-radius: var(--radius-md);
        padding: 22px 24px;
        box-shadow: var(--shadow-sm);
        transition: all var(--transition-med);
    }

    .ranking-card:hover {
        box-shadow: var(--shadow-md);
        border-color: var(--border-gold);
    }

    .ranking-card .rank-title {
        font-size: 16px;
        font-weight: 700;
        color: var(--text-dark);
        margin: 0 0 14px;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .ranking-card .rank-title .rank-icon {
        color: var(--accent-red);
        font-size: 18px;
    }

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

    .rank-list li {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 10px 0;
        border-bottom: 1px solid var(--border-light);
        font-size: 14px;
        color: var(--text-soft);
    }

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

    .rank-list .rank-num {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 24px;
        height: 24px;
        border-radius: 50%;
        font-size: 12px;
        font-weight: 700;
        flex-shrink: 0;
        background: var(--bg-primary);
        color: var(--text-muted);
    }

    .rank-list li:nth-child(1) .rank-num {
        background: var(--accent-gold);
        color: #fff;
    }

    .rank-list li:nth-child(2) .rank-num {
        background: #b0b0b0;
        color: #fff;
    }

    .rank-list li:nth-child(3) .rank-num {
        background: #c88b5f;
        color: #fff;
    }

    .rank-list .rank-name {
        flex: 1;
        font-weight: 500;
        color: var(--text-dark);
    }

    .rank-list .rank-score {
        font-size: 13px;
        color: var(--accent-red);
        font-weight: 600;
    }

    /* Data dashboard */
    .data-dashboard {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
    }

    .data-item {
        background: rgba(246, 243, 236, 0.06);
        border: 1px solid rgba(246, 243, 236, 0.1);
        border-radius: var(--radius-md);
        padding: 20px 18px;
        text-align: center;
        transition: all var(--transition-med);
    }

    .data-item:hover {
        border-color: rgba(198, 161, 91, 0.4);
        background: rgba(246, 243, 236, 0.1);
    }

    .data-item .data-num {
        font-family: var(--font-serif);
        font-size: 32px;
        font-weight: 700;
        color: var(--accent-gold);
        line-height: 1.2;
        margin-bottom: 4px;
    }

    .data-item .data-label {
        font-size: 13px;
        color: rgba(246, 243, 236, 0.6);
        letter-spacing: 0.04em;
    }

    /* Editor picks */
    .editor-picks {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 18px;
    }

    .pick-card {
        background: var(--bg-card);
        border: 1px solid var(--border-light);
        border-radius: var(--radius-md);
        overflow: hidden;
        transition: all var(--transition-med);
        box-shadow: var(--shadow-sm);
    }

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

    .pick-card .pick-img {
        height: 150px;
        overflow: hidden;
        background: #e8e3da;
    }

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

    .pick-card:hover .pick-img img {
        transform: scale(1.05);
    }

    .pick-card .pick-body {
        padding: 16px 18px 18px;
    }

    .pick-card .pick-title {
        font-size: 15px;
        font-weight: 700;
        color: var(--text-dark);
        margin: 0 0 6px;
        line-height: 1.45;
        transition: color var(--transition-fast);
    }

    .pick-card:hover .pick-title {
        color: var(--accent-red);
    }

    .pick-card .pick-meta {
        font-size: 12px;
        color: var(--text-muted);
        display: flex;
        align-items: center;
        gap: 8px;
    }

    /* Brand intro compact */
    .brand-intro-compact {
        display: flex;
        gap: 32px;
        align-items: flex-start;
    }

    .brand-intro-compact .brand-text {
        flex: 1;
    }

    .brand-intro-compact .brand-text p {
        font-size: 15px;
        color: var(--text-soft);
        line-height: 1.95;
        margin: 0 0 14px;
    }

    .brand-intro-compact .brand-stamp {
        flex-shrink: 0;
        width: 180px;
        padding: 20px;
        background: var(--bg-dark);
        border-radius: var(--radius-md);
        color: var(--text-on-dark);
        text-align: center;
        font-family: var(--font-serif);
        font-size: 18px;
        font-weight: 700;
        letter-spacing: 0.06em;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 6px;
    }

    .brand-intro-compact .brand-stamp .stamp-mark {
        font-size: 32px;
        color: var(--accent-gold);
    }

    /* FAQ */
    .faq-list {
        max-width: 820px;
        margin: 0 auto;
    }

    .faq-item {
        border-bottom: 1px solid var(--border-light);
        margin-bottom: 4px;
    }

    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 17px 6px;
        cursor: pointer;
        font-size: 16px;
        font-weight: 600;
        color: var(--text-dark);
        transition: color var(--transition-fast);
        background: transparent;
        border: none;
        width: 100%;
        text-align: left;
        font-family: var(--font-sans);
        letter-spacing: 0.01em;
    }

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

    .faq-question .faq-icon {
        font-size: 20px;
        color: var(--accent-gold);
        transition: transform var(--transition-med);
        flex-shrink: 0;
        font-weight: 300;
        line-height: 1;
    }

    .faq-item.open .faq-icon {
        transform: rotate(45deg);
    }

    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease, padding 0.3s ease;
        padding: 0 6px;
        font-size: 15px;
        color: var(--text-soft);
        line-height: 1.9;
    }

    .faq-item.open .faq-answer {
        max-height: 300px;
        padding: 0 6px 18px;
    }

    /* Bottom CTA */
    .bottom-cta {
        background: var(--bg-dark);
        color: var(--text-on-dark);
        padding: 48px 0;
        text-align: center;
        position: relative;
        overflow: hidden;
    }

    .bottom-cta::before {
        content: '';
        position: absolute;
        top: -60%;
        right: -20%;
        width: 400px;
        height: 400px;
        background: radial-gradient(circle, rgba(158, 43, 37, 0.3), transparent);
        pointer-events: none;
    }

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

    .bottom-cta h2 {
        font-family: var(--font-serif);
        font-size: 26px;
        font-weight: 700;
        margin: 0 0 10px;
        color: var(--text-on-dark);
    }

    .bottom-cta p {
        font-size: 15px;
        color: rgba(246, 243, 236, 0.65);
        margin: 0 0 22px;
    }

    /* Footer */
    .site-footer {
        background: var(--bg-dark);
        color: rgba(246, 243, 236, 0.7);
        padding: 44px 0 28px;
        border-top: 1px solid rgba(246, 243, 236, 0.08);
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1.2fr;
        gap: 32px;
        margin-bottom: 32px;
    }

    .footer-brand {
        font-family: var(--font-serif);
        font-size: 20px;
        font-weight: 700;
        color: var(--text-on-dark);
        margin-bottom: 10px;
    }

    .footer-col h4 {
        font-size: 14px;
        font-weight: 600;
        color: var(--text-on-dark);
        margin: 0 0 12px;
        letter-spacing: 0.05em;
    }

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

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

    .footer-col ul a {
        font-size: 13px;
        color: rgba(246, 243, 236, 0.5);
        transition: color var(--transition-fast);
    }

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

    .footer-legal {
        border-top: 1px solid rgba(246, 243, 236, 0.1);
        padding-top: 18px;
        font-size: 12px;
        color: rgba(246, 243, 236, 0.4);
        display: flex;
        flex-wrap: wrap;
        gap: 18px;
        align-items: center;
    }

    .footer-legal p {
        margin: 0;
    }

    .footer-legal a {
        color: rgba(246, 243, 236, 0.45);
        transition: color var(--transition-fast);
    }

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

    /* Scroll fade */
    .fade-in {
        opacity: 0;
        transform: translateY(22px);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }

    .fade-in.visible {
        opacity: 1;
        transform: translateY(0);
    }

    /* Responsive */
    @media (max-width: 1024px) {
        :root {
            --nav-width: 210px;
            --space-section: 52px;
        }

        .container {
            padding: 0 22px;
        }

        .category-header h1 {
            font-size: 30px;
        }

        .data-dashboard {
            grid-template-columns: repeat(2, 1fr);
        }

        .editor-picks {
            grid-template-columns: repeat(2, 1fr);
        }

        .article-card .card-img {
            width: 170px;
            min-height: 140px;
        }
    }

    @media (max-width: 768px) {
        :root {
            --nav-width: 0px;
            --space-section: 40px;
            --space-section-mobile: 32px;
        }

        .sidebar {
            transform: translateX(-100%);
            transition: transform 0.3s ease;
            width: 260px;
            z-index: 1001;
        }

        .sidebar.open {
            transform: translateX(0);
        }

        .mobile-topbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 58px;
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 0 16px;
            position: sticky;
            top: 0;
            z-index: 999;
            border-bottom: 1px solid rgba(246, 243, 236, 0.1);
        }

        .mobile-topbar .mobile-logo {
            font-family: var(--font-serif);
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .mobile-topbar .mobile-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            background: var(--accent-red);
            color: #fff;
            font-size: 14px;
            font-weight: 800;
            border-radius: var(--radius-sm);
            font-family: var(--font-sans);
        }

        .hamburger {
            display: flex;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
            z-index: 1002;
        }

        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-on-dark);
            transition: all 0.3s ease;
            border-radius: 1px;
        }

        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            z-index: 1000;
            transition: opacity 0.3s ease;
        }

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

        .main-wrapper {
            margin-left: 0;
        }

        .container {
            padding: 0 16px;
        }

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

        .category-header {
            padding: 32px 0 30px;
        }

        .category-header h1 {
            font-size: 26px;
        }

        .category-header .header-desc {
            font-size: 14px;
        }

        .article-card {
            flex-direction: column;
        }

        .article-card .card-img {
            width: 100%;
            min-height: 170px;
            max-height: 210px;
        }

        .article-card .card-body {
            padding: 14px 16px 16px;
        }

        .ranking-grid {
            grid-template-columns: 1fr;
        }

        .data-dashboard {
            grid-template-columns: repeat(2, 1fr);
        }

        .editor-picks {
            grid-template-columns: 1fr;
        }

        .brand-intro-compact {
            flex-direction: column;
        }

        .brand-intro-compact .brand-stamp {
            width: 100%;
        }

        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .footer-legal {
            flex-direction: column;
            gap: 6px;
            align-items: flex-start;
        }

        .filter-bar {
            align-items: flex-start;
            flex-direction: column;
        }

        .filter-sort {
            margin-left: 0;
        }

        .section-title {
            font-size: 22px;
        }
    }

    @media (max-width: 520px) {
        .category-header h1 {
            font-size: 22px;
        }

        .data-dashboard {
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }

        .data-item .data-num {
            font-size: 24px;
        }

        .footer-grid {
            grid-template-columns: 1fr;
            gap: 16px;
        }

        .article-card .card-title {
            font-size: 16px;
        }

        .btn {
            padding: 10px 18px;
            font-size: 14px;
            min-height: 40px;
        }

        .section-title {
            font-size: 20px;
        }
    }

/* roulang page: category4 */
:root {
            --bg-primary: #F6F3EC;
            --bg-white: #FFFFFF;
            --bg-dark: #1B1B1B;
            --bg-card: #FFFFFF;
            --text-dark: #1B1B1B;
            --text-soft: #4A4540;
            --text-muted: #7A716A;
            --text-on-dark: #F6F3EC;
            --accent-red: #9E2B25;
            --accent-red-hover: #7C1F1A;
            --accent-gold: #C6A15B;
            --accent-gold-light: #E8D5B5;
            --border-light: #E8E3DA;
            --border-gold: rgba(198, 161, 91, 0.55);
            --shadow-sm: 0 1px 4px rgba(27, 27, 27, 0.05);
            --shadow-md: 0 4px 18px rgba(27, 27, 27, 0.07);
            --shadow-lg: 0 12px 32px rgba(27, 27, 27, 0.1);
            --radius-sm: 3px;
            --radius-md: 5px;
            --radius-lg: 7px;
            --nav-width: 252px;
            --transition-fast: 0.22s ease;
            --transition-med: 0.32s ease;
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', 'STSong', serif;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', 'Helvetica Neue', Arial, sans-serif;
            --space-section: 72px;
            --space-section-mobile: 44px;
        }

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

        body {
            margin: 0;
            padding: 0;
            background: var(--bg-primary);
            color: var(--text-dark);
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.85;
            letter-spacing: 0.01em;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

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

        /* ---------- Sidebar ---------- */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: var(--bg-dark);
            display: flex;
            flex-direction: column;
            z-index: 100;
            transition: transform var(--transition-med);
        }

        .sidebar-logo {
            padding: 22px 24px 18px;
            border-bottom: 1px solid rgba(246, 243, 236, 0.12);
            flex-shrink: 0;
        }

        .sidebar-logo a {
            font-family: var(--font-serif);
            font-size: 22px;
            font-weight: 700;
            color: var(--text-on-dark);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.04em;
        }

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

        .sidebar-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: var(--accent-red);
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
            font-family: var(--font-sans);
        }

        .sidebar-nav {
            flex: 1;
            padding: 18px 14px;
            overflow-y: auto;
        }

        .sidebar-nav .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            color: rgba(246, 243, 236, 0.38);
            margin: 10px 10px 7px;
            font-weight: 600;
        }

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

        .sidebar-nav li {
            margin-bottom: 2px;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 11px;
            padding: 10px 12px;
            border-radius: var(--radius-sm);
            color: rgba(246, 243, 236, 0.72);
            font-size: 15px;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
        }

        .sidebar-nav a:hover {
            background: rgba(246, 243, 236, 0.06);
            color: var(--text-on-dark);
        }

        .sidebar-nav a.active {
            background: rgba(158, 43, 37, 0.18);
            color: var(--text-on-dark);
            font-weight: 600;
        }

        .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--accent-gold);
            border-radius: 0 2px 2px 0;
        }

        .sidebar-nav a .nav-icon {
            font-size: 16px;
            width: 20px;
            text-align: center;
            flex-shrink: 0;
            opacity: 0.85;
        }

        .sidebar-footer {
            padding: 14px 18px 18px;
            border-top: 1px solid rgba(246, 243, 236, 0.12);
            font-size: 12px;
            color: rgba(246, 243, 236, 0.38);
            flex-shrink: 0;
            line-height: 1.6;
        }

        .sidebar-footer span {
            display: block;
        }

        /* ---------- Main wrapper ---------- */
        .main-wrapper {
            margin-left: var(--nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ---------- Mobile topbar ---------- */
        .mobile-topbar {
            display: none;
        }

        .mobile-overlay {
            display: none;
        }

        /* ---------- Container ---------- */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 28px;
        }

        /* ---------- Category page header ---------- */
        .category-header {
            padding: 42px 0 28px;
            border-bottom: 1px solid var(--border-light);
            background: var(--bg-primary);
        }

        .breadcrumb {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb .sep {
            color: var(--text-muted);
            opacity: 0.5;
        }

        .category-header h1 {
            font-family: var(--font-serif);
            font-size: 36px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 12px;
            line-height: 1.3;
            letter-spacing: 0.02em;
        }

        .category-header .subtitle {
            font-size: 17px;
            color: var(--text-soft);
            max-width: 760px;
            line-height: 1.8;
            margin: 0;
        }

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

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

        .section-dark {
            background: var(--bg-dark);
            color: var(--text-on-dark);
        }

        .section-label {
            font-size: 13px;
            text-transform: uppercase;
            letter-spacing: 0.14em;
            color: var(--accent-red);
            font-weight: 600;
            margin-bottom: 8px;
            display: block;
        }

        .section-title {
            font-family: var(--font-serif);
            font-size: 28px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 16px;
            line-height: 1.35;
            letter-spacing: 0.015em;
        }

        .section-dark .section-title {
            color: var(--text-on-dark);
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-soft);
            max-width: 720px;
            line-height: 1.85;
            margin: 0 0 28px;
        }

        .section-dark .section-desc {
            color: rgba(246, 243, 236, 0.72);
        }

        /* ---------- Metric cards ---------- */
        .metric-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .metric-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            transition: all var(--transition-fast);
            position: relative;
            overflow: hidden;
        }

        .metric-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 100%;
            background: var(--accent-gold);
            opacity: 0;
            transition: opacity var(--transition-fast);
        }

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

        .metric-card:hover::after {
            opacity: 1;
        }

        .metric-number {
            font-family: var(--font-serif);
            font-size: 34px;
            font-weight: 700;
            color: var(--accent-red);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .metric-label {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .metric-unit {
            font-size: 18px;
            color: var(--accent-red);
            font-weight: 600;
            margin-left: 3px;
        }

        /* ---------- Filter bar ---------- */
        .filter-bar {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 24px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--border-light);
        }

        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            font-size: 13px;
            border: 1px solid var(--border-light);
            border-radius: 30px;
            background: var(--bg-card);
            color: var(--text-soft);
            cursor: pointer;
            transition: all var(--transition-fast);
            user-select: none;
        }

        .filter-tag:hover {
            border-color: var(--accent-gold);
            color: var(--accent-red);
        }

        .filter-tag.active {
            background: var(--accent-red);
            color: #fff;
            border-color: var(--accent-red);
        }

        .filter-count {
            font-size: 12px;
            color: var(--text-muted);
            margin-left: auto;
        }

        /* ---------- Card list ---------- */
        .article-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .article-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all var(--transition-fast);
        }

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

        .article-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
            background: var(--bg-dark);
        }

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

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

        .article-card .card-img-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent-red);
            color: #fff;
            font-size: 12px;
            padding: 3px 10px;
            border-radius: var(--radius-sm);
            letter-spacing: 0.03em;
        }

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

        .article-card .card-title {
            font-family: var(--font-serif);
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px;
            line-height: 1.4;
            letter-spacing: 0.01em;
        }

        .article-card .card-summary {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.7;
            margin: 0 0 14px;
            flex: 1;
        }

        .article-card .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 12px;
            color: var(--text-muted);
            border-top: 1px solid var(--border-light);
            padding-top: 12px;
        }

        .article-card .card-meta .heat {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--accent-red);
            font-weight: 500;
        }

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

        .feature-row.reverse {
            direction: rtl;
        }

        .feature-row.reverse>* {
            direction: ltr;
        }

        .feature-text h3 {
            font-family: var(--font-serif);
            font-size: 22px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 12px;
            line-height: 1.4;
        }

        .feature-text p {
            font-size: 15px;
            color: var(--text-soft);
            line-height: 1.85;
            margin: 0 0 10px;
        }

        .feature-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
        }

        .feature-img img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }

        .feature-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 12px;
        }

        .feature-tags .tag-item {
            font-size: 12px;
            padding: 3px 10px;
            background: var(--bg-primary);
            border: 1px solid var(--border-light);
            border-radius: 20px;
            color: var(--text-soft);
        }

        /* ---------- Chart block ---------- */
        .chart-block {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 28px 24px;
        }

        .chart-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
        }

        .chart-title {
            font-family: var(--font-serif);
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
        }

        .chart-subtitle {
            font-size: 13px;
            color: var(--text-muted);
        }

        .chart-bars {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .chart-bar-row {
            display: grid;
            grid-template-columns: 130px 1fr 50px;
            gap: 12px;
            align-items: center;
        }

        .chart-bar-label {
            font-size: 13px;
            color: var(--text-soft);
            text-align: right;
        }

        .chart-bar-track {
            background: var(--bg-primary);
            border-radius: 4px;
            height: 22px;
            position: relative;
            overflow: hidden;
        }

        .chart-bar-fill {
            height: 100%;
            border-radius: 4px;
            background: linear-gradient(90deg, var(--accent-red), var(--accent-gold));
            transition: width 0.8s ease;
            position: relative;
        }

        .chart-bar-value {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-soft);
        }

        /* ---------- FAQ ---------- */
        .faq-list {
            max-width: 780px;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-light);
            margin-bottom: 0;
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 8px 18px 0;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            transition: color var(--transition-fast);
            user-select: none;
            gap: 16px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 20px;
            color: var(--accent-gold);
            transition: transform var(--transition-fast);
            font-weight: 400;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 8px 0 0;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 16px;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--text-soft);
            line-height: 1.8;
            margin: 0;
        }

        /* ---------- CTA ---------- */
        .cta-panel {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            border-radius: var(--radius-lg);
            padding: 42px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }

        .cta-panel::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 180px;
            height: 180px;
            background: rgba(198, 161, 91, 0.08);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-panel h3 {
            font-family: var(--font-serif);
            font-size: 24px;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text-on-dark);
        }

        .cta-panel p {
            font-size: 15px;
            color: rgba(246, 243, 236, 0.7);
            margin: 0;
            line-height: 1.7;
        }

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

        /* ---------- Buttons ---------- */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            cursor: pointer;
            border: 1px solid transparent;
            letter-spacing: 0.03em;
            line-height: 1.4;
            text-align: center;
            gap: 8px;
        }

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

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

        .btn-outline {
            background: transparent;
            color: var(--text-dark);
            border-color: var(--text-dark);
        }

        .btn-outline:hover {
            background: rgba(27, 27, 27, 0.05);
            color: var(--text-dark);
            transform: translateY(-1px);
        }

        .btn-outline-light {
            background: transparent;
            color: var(--text-on-dark);
            border-color: rgba(246, 243, 236, 0.5);
        }

        .btn-outline-light:hover {
            background: rgba(246, 243, 236, 0.08);
            color: var(--text-on-dark);
            border-color: var(--accent-gold);
            transform: translateY(-1px);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
        }

        /* ---------- Category entry ---------- */
        .category-entry-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .category-entry-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px;
            display: flex;
            align-items: center;
            gap: 14px;
            transition: all var(--transition-fast);
        }

        .category-entry-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }

        .category-entry-card .entry-icon {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
            background: var(--bg-primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--accent-red);
        }

        .category-entry-card .entry-info {
            flex: 1;
        }

        .category-entry-card .entry-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0;
        }

        .category-entry-card .entry-desc {
            font-size: 12px;
            color: var(--text-muted);
            margin: 2px 0 0;
        }

        /* ---------- Footer ---------- */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 48px 0 0;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(246, 243, 236, 0.1);
        }

        .footer-brand {
            font-family: var(--font-serif);
            font-size: 20px;
            font-weight: 700;
            color: var(--text-on-dark);
            margin-bottom: 10px;
            letter-spacing: 0.03em;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-gold);
            margin: 0 0 12px;
            letter-spacing: 0.05em;
        }

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

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

        .footer-col a {
            color: rgba(246, 243, 236, 0.55);
            font-size: 14px;
            transition: color var(--transition-fast);
        }

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

        .footer-legal {
            padding: 18px 0 22px;
            font-size: 12px;
            color: rgba(246, 243, 236, 0.38);
            display: flex;
            flex-wrap: wrap;
            gap: 10px 20px;
            align-items: center;
        }

        .footer-legal p {
            margin: 0;
        }

        .footer-legal a {
            color: rgba(246, 243, 236, 0.55);
        }

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

        /* ---------- Responsive ---------- */
        @media screen and (max-width: 1024px) {
            :root {
                --nav-width: 210px;
                --space-section: 52px;
            }

            .metric-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .article-list {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .category-entry-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .chart-bar-row {
                grid-template-columns: 100px 1fr 46px;
                gap: 8px;
            }
        }

        @media screen and (max-width: 768px) {
            :root {
                --nav-width: 0px;
                --space-section: 40px;
                --space-section-mobile: 32px;
            }

            .sidebar {
                transform: translateX(-100%);
                width: 260px;
                box-shadow: var(--shadow-lg);
            }

            .sidebar.open {
                transform: translateX(0);
            }

            .mobile-overlay {
                display: block;
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100%;
                background: rgba(27, 27, 27, 0.55);
                z-index: 90;
                opacity: 0;
                pointer-events: none;
                transition: opacity var(--transition-med);
            }

            .mobile-overlay.active {
                opacity: 1;
                pointer-events: auto;
            }

            .mobile-topbar {
                display: flex;
                align-items: center;
                justify-content: space-between;
                padding: 0 18px;
                height: 58px;
                background: var(--bg-dark);
                position: sticky;
                top: 0;
                z-index: 80;
                gap: 12px;
            }

            .mobile-topbar .mobile-logo {
                font-family: var(--font-serif);
                font-size: 18px;
                font-weight: 700;
                color: var(--text-on-dark);
                display: flex;
                align-items: center;
                gap: 8px;
            }

            .mobile-topbar .mobile-logo .logo-mark {
                display: inline-flex;
                align-items: center;
                justify-content: center;
                width: 28px;
                height: 28px;
                background: var(--accent-red);
                color: #fff;
                font-size: 15px;
                font-weight: 800;
                border-radius: var(--radius-sm);
                font-family: var(--font-sans);
            }

            .mobile-topbar .hamburger {
                display: flex;
                flex-direction: column;
                gap: 4px;
                background: none;
                border: none;
                cursor: pointer;
                padding: 6px;
                width: 40px;
                height: 40px;
                align-items: center;
                justify-content: center;
                border-radius: var(--radius-sm);
                transition: background var(--transition-fast);
            }

            .mobile-topbar .hamburger:hover {
                background: rgba(246, 243, 236, 0.08);
            }

            .mobile-topbar .hamburger span {
                display: block;
                width: 20px;
                height: 2px;
                background: var(--text-on-dark);
                border-radius: 1px;
                transition: all var(--transition-fast);
            }

            .mobile-topbar .hamburger.active span:nth-child(1) {
                transform: translateY(6px) rotate(45deg);
            }

            .mobile-topbar .hamburger.active span:nth-child(2) {
                opacity: 0;
            }

            .mobile-topbar .hamburger.active span:nth-child(3) {
                transform: translateY(-6px) rotate(-45deg);
            }

            .main-wrapper {
                margin-left: 0;
            }

            .category-header {
                padding: 26px 0 20px;
            }

            .category-header h1 {
                font-size: 26px;
            }

            .section {
                padding: var(--space-section-mobile) 0;
            }

            .section-title {
                font-size: 22px;
            }

            .metric-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .metric-card {
                padding: 16px 14px;
            }

            .metric-number {
                font-size: 26px;
            }

            .feature-row {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .feature-row.reverse {
                direction: ltr;
            }

            .feature-img img {
                height: 200px;
            }

            .cta-panel {
                padding: 28px 22px;
                flex-direction: column;
                align-items: flex-start;
            }

            .chart-bar-row {
                grid-template-columns: 80px 1fr 40px;
                gap: 6px;
            }

            .chart-bar-label {
                font-size: 11px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .category-entry-grid {
                grid-template-columns: 1fr;
            }

            .article-card .card-title {
                font-size: 16px;
            }

            .card-meta {
                flex-wrap: wrap;
                gap: 8px;
            }
        }

        @media screen and (max-width: 520px) {
            .metric-grid {
                grid-template-columns: 1fr;
            }

            .metric-number {
                font-size: 24px;
            }

            .container {
                padding: 0 16px;
            }

            .category-header h1 {
                font-size: 22px;
            }

            .section-title {
                font-size: 20px;
            }

            .cta-panel h3 {
                font-size: 20px;
            }

            .btn {
                padding: 10px 20px;
                font-size: 14px;
            }

            .filter-bar {
                gap: 6px;
            }

            .filter-tag {
                font-size: 12px;
                padding: 5px 12px;
            }

            .chart-bar-row {
                grid-template-columns: 64px 1fr 36px;
                gap: 4px;
            }
        }