/* roulang page: index */
:root {
            --primary: #1C1C1C;
            --primary-light: #2A2A2A;
            --primary-soft: #3A3A3A;
            --secondary: #0E8A5F;
            --secondary-hover: #0B7A52;
            --accent: #C8443A;
            --accent-hover: #B33A30;
            --gold: #B8935A;
            --bg: #F6F4F1;
            --card: #FFFFFF;
            --text: #1C1C1C;
            --text-body: #4A4A4A;
            --text-muted: #777777;
            --text-light: #AAAAAA;
            --border: #E8E5E0;
            --border-focus: #D0CCC4;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-img: 8px;
            --shadow-sm: 0 2px 10px rgba(28,28,28,0.06);
            --shadow-md: 0 6px 18px rgba(28,28,28,0.12);
            --shadow-lg: 0 12px 36px rgba(28,28,28,0.15);
            --transition: 0.25s ease;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --container-max: 1200px;
            --gap: 24px;
            --gap-sm: 16px;
            --section-padding: 72px 0;
            --section-padding-mobile: 48px 0;
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text-body);
            font-size: 16px;
            line-height: 1.85;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

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

        a:hover {
            color: var(--secondary);
        }

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

        button,
        input {
            font-family: var(--font-sans);
            font-size: 16px;
        }

        button {
            cursor: pointer;
            border: none;
            outline: none;
        }

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

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

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--card);
            border-bottom: 1px solid var(--border);
            height: 64px;
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }

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

        .logo-mark {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
            color: var(--card);
            flex-shrink: 0;
        }

        .logo-mark span {
            transform: translateY(-1px);
        }

        .logo-text {
            font-weight: 700;
            font-size: 20px;
            color: var(--text);
            letter-spacing: 0.5px;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .main-nav a {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            position: relative;
            padding: 4px 0;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary);
            transition: width var(--transition);
        }

        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }

        .main-nav a.active {
            color: var(--secondary);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            padding: 6px;
            border-radius: var(--radius-btn);
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition);
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Mobile nav */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: var(--card);
            border-bottom: 1px solid var(--border);
            padding: 16px 20px;
            z-index: 99;
            flex-direction: column;
            gap: 8px;
            box-shadow: var(--shadow-sm);
        }

        .mobile-nav a {
            padding: 10px 0;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            border-bottom: 1px solid var(--border);
        }

        .mobile-nav a:last-child {
            border-bottom: none;
        }
        .mobile-nav a:hover {
            color: var(--secondary);
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 22px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.3px;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            user-select: none;
            line-height: 1.4;
            min-width: 120px;
        }

        .btn-primary {
            background: var(--secondary);
            color: #FFFFFF;
        }
        .btn-primary:hover {
            background: var(--secondary-hover);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-secondary {
            background: transparent;
            color: var(--text);
            border: 2px solid var(--text);
        }
        .btn-secondary:hover {
            background: var(--text);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-outline-light {
            background: transparent;
            color: #FFFFFF;
            border: 2px solid #FFFFFF;
        }
        .btn-outline-light:hover {
            background: #FFFFFF;
            color: var(--text);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            min-width: auto;
        }

        /* Hero */
        .hero {
            position: relative;
            background: var(--primary);
            min-height: 560px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-size: cover;
            background-position: center 30%;
            z-index: 0;
        }

        .hero-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(28,28,28,0.88) 0%, rgba(28,28,28,0.55) 60%, rgba(28,28,28,0.35) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
            padding: 60px 0;
        }

        .hero-tag {
            display: inline-block;
            background: var(--accent);
            color: #FFFFFF;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1px;
            padding: 6px 14px;
            border-radius: 4px;
            margin-bottom: 18px;
            text-transform: uppercase;
        }

        .hero h1 {
            font-size: 44px;
            font-weight: 800;
            color: #FFFFFF;
            line-height: 1.3;
            letter-spacing: 1px;
            margin-bottom: 18px;
        }

        .hero-sub {
            font-size: 17px;
            color: rgba(255,255,255,0.9);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 560px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

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

        .section-dark {
            background: var(--primary);
            color: #FFFFFF;
        }

        .section-dark h2,
        .section-dark h3 {
            color: #FFFFFF;
        }

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

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 36px;
            flex-wrap: wrap;
        }

        .section-header h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: 0.5px;
            line-height: 1.35;
        }

        .section-header .sub-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
            letter-spacing: 1.5px;
            text-transform: uppercase;
            display: block;
            margin-bottom: 6px;
        }

        .section-header p.desc {
            font-size: 14px;
            color: var(--text-muted);
            max-width: 480px;
        }

        .section-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--secondary);
            white-space: nowrap;
        }
        .section-link:hover {
            color: var(--secondary-hover);
            text-decoration: underline;
        }

        /* Stats Bar */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 20px;
        }

        .stat-item {
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .stat-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .stat-number {
            font-size: 32px;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.2;
            margin-bottom: 6px;
            font-variant-numeric: tabular-nums;
        }

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

        .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            line-height: 1.5;
        }

        /* News Cards */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .news-card {
            display: flex;
            gap: 24px;
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            cursor: pointer;
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .news-card img {
            width: 200px;
            height: 140px;
            object-fit: cover;
            flex-shrink: 0;
            border-radius: var(--radius-img);
        }

        .news-card-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-width: 0;
        }

        .news-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 8px;
        }

        .news-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-meta {
            display: flex;
            gap: 14px;
            font-size: 13px;
            color: var(--text-light);
            margin-top: 10px;
            flex-wrap: wrap;
        }

        /* Featured Deep */
        .featured-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr;
            gap: 24px;
        }

        .featured-main {
            background: var(--card);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            cursor: pointer;
        }
        .featured-main:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .featured-main img {
            width: 100%;
            height: 300px;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }

        .featured-main .featured-body {
            padding: 28px;
        }

        .featured-main h3 {
            font-size: 22px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 12px;
        }

        .featured-main p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .featured-meta {
            display: flex;
            gap: 18px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .featured-side {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .featured-side-card {
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            cursor: pointer;
        }
        .featured-side-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .featured-side-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 8px;
        }

        .featured-side-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 10px;
        }
        .featured-side-card .featured-meta {
            font-size: 12px;
        }

        /* Brand Intro */
        .brand-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 48px;
            align-items: center;
        }

        .brand-intro-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .brand-intro-image img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            border-radius: var(--radius-card);
        }

        .brand-intro-text h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 18px;
        }
        .brand-intro-text h2 span {
            color: var(--secondary);
        }
        .brand-intro-text > p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.85;
            margin-bottom: 14px;
        }

        /* Category Entry */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .category-card {
            background: var(--card);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            cursor: pointer;
        }
        .category-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .category-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
            transition: transform 0.4s ease;
        }
        .category-card:hover img {
            transform: scale(1.03);
        }

        .category-card-body {
            padding: 20px 22px;
        }
        .category-card-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }
        .category-card-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Table Wrapper */
        .table-wrapper {
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            overflow-x: auto;
        }

        .league-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
            min-width: 560px;
        }
        .league-table th {
            text-align: left;
            font-weight: 700;
            color: var(--text);
            border-bottom: 2px solid var(--border);
            padding: 10px 12px;
            font-size: 13px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .league-table td {
            padding: 12px 12px;
            border-bottom: 1px solid var(--border);
            color: var(--text-body);
            font-variant-numeric: tabular-nums;
        }
        .league-table tr:last-child td {
            border-bottom: none;
        }
        .league-table tbody tr:hover {
            background: var(--bg);
        }

        .table-interpretation {
            margin-top: 20px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            padding: 16px 0 0;
            border-top: 1px solid var(--border);
        }

        /* Gear Cards */
        .gear-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .gear-card {
            background: var(--card);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            cursor: pointer;
        }
        .gear-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .gear-card img {
            width: 100%;
            height: 190px;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }
        .gear-card-body {
            padding: 20px;
        }
        .gear-card-body h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }
        .gear-score {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 8px;
        }
        .gear-score .score-num {
            font-size: 24px;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1;
        }
        .gear-score .score-stars {
            color: var(--gold);
            font-size: 14px;
            letter-spacing: 2px;
        }
        .gear-card-body p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 10px;
        }
        .gear-price {
            display: inline-block;
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            background: rgba(200,68,58,0.08);
            padding: 4px 10px;
            border-radius: 4px;
        }

        /* Training */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .training-card {
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            display: flex;
            gap: 20px;
            transition: all var(--transition);
            cursor: pointer;
        }
        .training-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .training-card img {
            width: 120px;
            height: 120px;
            object-fit: cover;
            border-radius: var(--radius-img);
            flex-shrink: 0;
        }
        .training-card-content h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }
        .training-card-content p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
        }
        .training-step {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            color: var(--secondary);
            background: rgba(14,138,95,0.08);
            padding: 3px 10px;
            border-radius: 4px;
            margin-bottom: 8px;
            letter-spacing: 0.5px;
        }

        /* Special Topic */
        .topic-banner {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center;
            box-shadow: var(--shadow-md);
        }
        .topic-banner .topic-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(90deg, rgba(28,28,28,0.85) 0%, rgba(28,28,28,0.55) 55%, rgba(28,28,28,0.25) 100%);
            border-radius: var(--radius-card);
        }
        .topic-content {
            position: relative;
            z-index: 1;
            max-width: 580px;
            padding: 40px;
        }
        .topic-content h3 {
            font-size: 26px;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 16px;
            line-height: 1.4;
        }
        .topic-content p {
            font-size: 15px;
            color: rgba(255,255,255,0.85);
            line-height: 1.8;
        }

        /* Community */
        .community-list {
            background: var(--card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }
        .community-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            border-bottom: 1px solid var(--border);
            transition: background var(--transition);
            cursor: pointer;
            flex-wrap: wrap;
        }
        .community-item:last-child {
            border-bottom: none;
        }
        .community-item:hover {
            background: var(--bg);
        }
        .community-item h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            flex: 1;
            min-width: 200px;
        }
        .community-stats {
            display: flex;
            gap: 18px;
            font-size: 13px;
            color: var(--text-muted);
            white-space: nowrap;
        }
        .community-stats span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 10px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item summary {
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            gap: 12px;
            user-select: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '+';
            font-size: 22px;
            color: var(--secondary);
            font-weight: 300;
            margin-left: auto;
            transition: transform var(--transition);
        }
        .faq-item[open] summary::after {
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 22px 18px 56px;
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
        }
        .faq-q {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            background: var(--secondary);
            color: #FFFFFF;
            border-radius: 50%;
            font-size: 13px;
            font-weight: 700;
            flex-shrink: 0;
        }

        /* Brand Extension */
        .brand-extension {
            background: linear-gradient(135deg, #1C1C1C 0%, #0E8A5F 100%);
            border-radius: var(--radius-card);
            padding: 40px;
            color: #FFFFFF;
        }
        .brand-extension h3 {
            font-size: 24px;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 14px;
        }
        .brand-extension p {
            font-size: 15px;
            color: rgba(255,255,255,0.85);
            line-height: 1.8;
            max-width: 720px;
        }

        /* Subscribe */
        .subscribe-box {
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 36px;
            box-shadow: var(--shadow-sm);
            display: flex;
            gap: 30px;
            align-items: center;
            flex-wrap: wrap;
        }
        .subscribe-box h3 {
            font-size: 22px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 6px;
        }
        .subscribe-box p {
            font-size: 14px;
            color: var(--text-muted);
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            flex: 1;
            min-width: 280px;
            flex-wrap: wrap;
        }
        .subscribe-form input[type="email"] {
            flex: 1;
            min-width: 200px;
            height: 44px;
            border: 1px solid var(--border-focus);
            border-radius: var(--radius-btn);
            background: #FFFFFF;
            padding: 0 16px;
            font-size: 14px;
            color: var(--text);
            transition: border-color var(--transition);
        }
        .subscribe-form input[type="email"]:focus {
            outline: none;
            border-color: var(--secondary);
        }
        .privacy-note {
            font-size: 12px;
            color: var(--text-light);
            margin-top: 8px;
        }

        /* Bottom Info */
        .bottom-info {
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 30px 32px;
            box-shadow: var(--shadow-sm);
            display: flex;
            gap: 32px;
            align-items: flex-start;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .bottom-info h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .bottom-info p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .bottom-links {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
            align-items: center;
        }
        .bottom-links a {
            font-size: 13px;
            color: var(--secondary);
            font-weight: 600;
        }
        .bottom-links a:hover {
            color: var(--secondary-hover);
            text-decoration: underline;
        }

        /* Footer */
        .site-footer {
            background: var(--primary);
            color: #FFFFFF;
            padding: 60px 0 0;
            margin-top: 60px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--primary-soft);
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 10px;
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.6;
            max-width: 260px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul a {
            font-size: 13px;
            color: var(--text-light);
            transition: color var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--secondary);
        }
        .footer-contact p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.6;
        }
        .footer-bottom {
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: #AAAAAA;
        }
        .footer-bottom .footer-bottom-links {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-wrap: wrap;
        }
        .footer-bottom .footer-bottom-links a {
            color: #AAAAAA;
            font-size: 12px;
        }
        .footer-bottom .footer-bottom-links a:hover {
            color: var(--secondary);
        }
        .footer-bottom .separator {
            color: #555555;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .gear-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .brand-intro-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .brand-intro-image img {
                height: 300px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 30px;
            }
            .main-nav {
                gap: 18px;
            }
            .main-nav a {
                font-size: 13px;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                height: 56px;
            }
            .main-nav {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-nav {
                display: none;
                top: 56px;
            }
            .mobile-nav.open {
                display: flex;
            }
            .hero {
                min-height: 440px;
            }
            .hero h1 {
                font-size: 30px;
            }
            .hero-sub {
                font-size: 15px;
            }
            .hero-content {
                padding: 40px 0;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 24px;
            }
            .news-card {
                flex-direction: column;
                gap: 14px;
            }
            .news-card img {
                width: 100%;
                height: 180px;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .gear-grid {
                grid-template-columns: 1fr;
            }
            .training-grid {
                grid-template-columns: 1fr;
            }
            .topic-banner {
                min-height: 300px;
            }
            .topic-content {
                padding: 24px;
            }
            .topic-content h3 {
                font-size: 20px;
            }
            .section {
                padding: var(--section-padding-mobile);
            }
            .section-header h2 {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .subscribe-box {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
            }
            .bottom-info {
                flex-direction: column;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 26px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .training-card img {
                width: 100%;
                height: 160px;
                object-fit: cover;
            }
            .featured-main .featured-body {
                padding: 18px;
            }
            .faq-answer {
                padding-left: 22px;
            }
            .brand-extension {
                padding: 24px;
            }
            .btn {
                min-width: 100px;
                padding: 10px 18px;
                font-size: 14px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1C1C1C;
            --primary-light: #2A2A2A;
            --primary-soft: #3A3A3A;
            --secondary: #0E8A5F;
            --secondary-hover: #0B7A52;
            --accent: #C8443A;
            --accent-hover: #B33A30;
            --gold: #B8935A;
            --bg: #F6F4F1;
            --card: #FFFFFF;
            --text: #1C1C1C;
            --text-body: #4A4A4A;
            --text-muted: #777777;
            --text-light: #AAAAAA;
            --border: #E8E5E0;
            --border-focus: #D0CCC4;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-img: 8px;
            --shadow-sm: 0 2px 10px rgba(28, 28, 28, 0.06);
            --shadow-md: 0 6px 18px rgba(28, 28, 28, 0.12);
            --shadow-lg: 0 12px 36px rgba(28, 28, 28, 0.15);
            --transition: 0.25s ease;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --container-max: 1200px;
            --gap: 24px;
            --gap-sm: 16px;
            --section-padding: 72px 0;
            --section-padding-mobile: 48px 0;
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text-body);
            font-size: 16px;
            line-height: 1.85;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

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

        a:hover {
            color: var(--secondary);
        }

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

        button,
        input {
            font-family: var(--font-sans);
            font-size: 16px;
        }

        button {
            cursor: pointer;
            border: none;
            outline: none;
            background: none;
        }

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

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

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--card);
            border-bottom: 1px solid var(--border);
            height: 64px;
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }

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

        .logo-mark {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
            color: var(--card);
            flex-shrink: 0;
        }

        .logo-mark span {
            transform: translateY(-1px);
        }

        .logo-text {
            font-weight: 700;
            font-size: 20px;
            color: var(--text);
            letter-spacing: 0.5px;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .main-nav a {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            position: relative;
            padding: 4px 0;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary);
            transition: width var(--transition);
        }

        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }

        .main-nav a.active {
            color: var(--secondary);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            padding: 6px;
            border-radius: var(--radius-btn);
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition);
        }

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

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

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

        .mobile-nav {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: var(--card);
            border-bottom: 1px solid var(--border);
            padding: 16px 20px;
            z-index: 99;
            flex-direction: column;
            gap: 8px;
            box-shadow: var(--shadow-sm);
        }

        .mobile-nav a {
            padding: 10px 0;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            border-bottom: 1px solid var(--border);
            display: block;
        }

        .mobile-nav a:last-child {
            border-bottom: none;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

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

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

        .breadcrumb .separator {
            color: var(--border-focus);
            user-select: none;
        }

        .breadcrumb .current {
            color: var(--text);
            font-weight: 600;
        }

        /* Category Header */
        .category-header {
            padding: 48px 0 32px;
            background: var(--card);
            border-bottom: 1px solid var(--border);
        }

        .category-header-inner {
            display: grid;
            grid-template-columns: 1fr 280px;
            gap: 32px;
            align-items: start;
        }

        .category-header-content h1 {
            font-size: 34px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            line-height: 1.3;
            letter-spacing: 0.5px;
        }

        .category-header-content .lead {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-body);
            max-width: 640px;
        }

        .category-banner {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--primary-light);
        }

        .category-banner img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-card);
        }

        .category-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(28, 28, 28, 0.35) 0%, rgba(28, 28, 28, 0.05) 100%);
            pointer-events: none;
            border-radius: var(--radius-card);
        }

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

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

        .section-dark {
            background: var(--primary);
            color: var(--card);
        }

        .section-head {
            margin-bottom: 40px;
        }

        .section-head h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .section-dark .section-head h2 {
            color: var(--card);
        }

        .section-head .subtitle {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 680px;
        }

        .section-dark .section-head .subtitle {
            color: var(--text-light);
        }

        /* Article Cards */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .article-card {
            background: var(--card);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .article-card-image {
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--border);
            flex-shrink: 0;
        }

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

        .article-card:hover .article-card-image img {
            transform: scale(1.03);
        }

        .article-card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .article-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 10px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .article-card-meta .tag {
            background: rgba(14, 138, 95, 0.1);
            color: var(--secondary);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 20px;
            letter-spacing: 0.5px;
        }

        .article-card-meta .tag.tag-accent {
            background: rgba(200, 68, 58, 0.1);
            color: var(--accent);
        }

        .article-card-meta .tag.tag-gold {
            background: rgba(184, 147, 90, 0.12);
            color: var(--gold);
        }

        .article-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .article-card .excerpt {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card .read-more {
            margin-top: 14px;
            font-size: 14px;
            font-weight: 600;
            color: var(--secondary);
            align-self: flex-start;
            transition: color var(--transition);
        }

        .article-card .read-more:hover {
            color: var(--secondary-hover);
        }

        /* View More Button */
        .view-more-wrap {
            text-align: center;
            margin-top: 36px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            transition: all var(--transition);
            letter-spacing: 0.3px;
            min-height: 40px;
        }

        .btn-primary {
            background: var(--secondary);
            color: #fff;
            border: 2px solid var(--secondary);
        }

        .btn-primary:hover {
            background: var(--secondary-hover);
            border-color: var(--secondary-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

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

        .btn-outline-dark:hover {
            background: var(--text);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid #fff;
        }

        .btn-outline-light:hover {
            background: #fff;
            color: var(--text);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        /* Data Table */
        .data-table-wrap {
            background: var(--card);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
        }

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

        .data-table th {
            padding: 14px 16px;
            font-weight: 600;
            font-size: 13px;
            text-align: left;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .data-table td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border);
            color: var(--text-body);
            white-space: nowrap;
        }

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

        .data-table tbody tr:hover {
            background: #faf9f7;
        }

        .data-table .rank-1 {
            color: var(--gold);
            font-weight: 700;
        }

        .data-table .rank-2 {
            color: #8a8a8a;
            font-weight: 700;
        }

        .data-table .rank-3 {
            color: #b87a4a;
            font-weight: 700;
        }

        .data-table .team-name {
            font-weight: 600;
            color: var(--text);
        }

        .table-note {
            padding: 16px 18px;
            background: #faf9f7;
            border-top: 1px solid var(--border);
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* Featured Panel */
        .featured-panel {
            background: var(--primary);
            border-radius: var(--radius-card);
            padding: 36px 40px;
            color: var(--card);
            position: relative;
            overflow: hidden;
        }

        .featured-panel::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(14, 138, 95, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .featured-panel::after {
            content: '';
            position: absolute;
            bottom: -30px;
            left: 20%;
            width: 160px;
            height: 160px;
            background: radial-gradient(circle, rgba(200, 68, 58, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .featured-panel .tag-flag {
            display: inline-block;
            background: var(--secondary);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 1px;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }

        .featured-panel h3 {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            line-height: 1.5;
            position: relative;
            z-index: 1;
        }

        .featured-panel p {
            font-size: 15px;
            color: #d8d8d8;
            line-height: 1.9;
            margin-bottom: 20px;
            max-width: 720px;
            position: relative;
            z-index: 1;
        }

        .featured-panel .featured-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--gold);
            position: relative;
            z-index: 1;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition);
        }

        .featured-panel .featured-link:hover {
            color: #d4b98a;
        }

        /* Editor Picks */
        .editor-picks {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .editor-pick-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 22px;
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .editor-pick-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-sm);
        }

        .editor-pick-item .pick-index {
            font-size: 28px;
            font-weight: 800;
            color: var(--border-focus);
            margin-bottom: 8px;
            line-height: 1;
        }

        .editor-pick-item h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .editor-pick-item p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* Bottom Info */
        .bottom-info {
            padding: 40px 0;
            background: var(--card);
            border-top: 1px solid var(--border);
        }

        .bottom-info-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-muted);
        }

        .bottom-info-inner a {
            color: var(--text-muted);
            transition: color var(--transition);
        }

        .bottom-info-inner a:hover {
            color: var(--secondary);
        }

        /* Footer */
        .site-footer {
            background: var(--primary);
            color: var(--text-light);
            padding: 48px 0 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            color: var(--text-light);
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

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

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

        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-light);
            transition: color var(--transition);
        }

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

        .footer-contact p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 6px;
        }

        .footer-bottom {
            border-top: 1px solid #3a3a3a;
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom span {
            font-size: 12px;
            color: #aaa;
        }

        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .footer-bottom-links a {
            font-size: 12px;
            color: #aaa;
            transition: color var(--transition);
        }

        .footer-bottom-links a:hover {
            color: #fff;
        }

        .footer-bottom-links .separator {
            color: #555;
            font-size: 12px;
            user-select: none;
        }

        /* Responsive */
        @media (max-width: 992px) {
            .main-nav {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-nav {
                display: none;
            }
            .mobile-nav.open {
                display: flex;
            }
            .category-header-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .category-header-content h1 {
                font-size: 28px;
            }
            .category-banner {
                aspect-ratio: 21 / 9;
                max-height: 220px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .editor-picks {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .article-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .editor-picks {
                grid-template-columns: 1fr;
            }
            .category-header {
                padding: 32px 0 24px;
            }
            .category-header-content h1 {
                font-size: 24px;
            }
            .section {
                padding: var(--section-padding-mobile);
            }
            .section-head h2 {
                font-size: 22px;
            }
            .featured-panel {
                padding: 24px 22px;
            }
            .featured-panel h3 {
                font-size: 19px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .data-table-wrap {
                overflow-x: auto;
            }
            .data-table {
                min-width: 560px;
            }
            .bottom-info-inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .article-card-body {
                padding: 16px 16px 20px;
            }
            .article-card h3 {
                font-size: 16px;
            }
            .category-banner {
                aspect-ratio: 16 / 9;
            }
            .btn {
                padding: 8px 16px;
                font-size: 14px;
                min-height: 36px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1C1C1C;
            --primary-light: #2A2A2A;
            --primary-soft: #3A3A3A;
            --secondary: #0E8A5F;
            --secondary-hover: #0B7A52;
            --accent: #C8443A;
            --accent-hover: #B33A30;
            --gold: #B8935A;
            --bg: #F6F4F1;
            --card: #FFFFFF;
            --text: #1C1C1C;
            --text-body: #4A4A4A;
            --text-muted: #777777;
            --text-light: #AAAAAA;
            --border: #E8E5E0;
            --border-focus: #D0CCC4;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-img: 8px;
            --shadow-sm: 0 2px 10px rgba(28, 28, 28, 0.06);
            --shadow-md: 0 6px 18px rgba(28, 28, 28, 0.12);
            --shadow-lg: 0 12px 36px rgba(28, 28, 28, 0.15);
            --transition: 0.25s ease;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --container-max: 1200px;
            --gap: 24px;
            --gap-sm: 16px;
            --section-padding: 72px 0;
            --section-padding-mobile: 48px 0;
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text-body);
            font-size: 16px;
            line-height: 1.85;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

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

        a:hover {
            color: var(--secondary);
        }

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

        button,
        input {
            font-family: var(--font-sans);
            font-size: 16px;
        }

        button {
            cursor: pointer;
            border: none;
            outline: none;
        }

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

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

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--card);
            border-bottom: 1px solid var(--border);
            height: 64px;
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }

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

        .logo-mark {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
            color: var(--card);
            flex-shrink: 0;
        }

        .logo-mark span {
            transform: translateY(-1px);
        }

        .logo-text {
            font-weight: 700;
            font-size: 20px;
            color: var(--text);
            letter-spacing: 0.5px;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .main-nav a {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            position: relative;
            padding: 4px 0;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary);
            transition: width var(--transition);
        }

        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }

        .main-nav a.active {
            color: var(--secondary);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            padding: 6px;
            border-radius: var(--radius-btn);
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition);
        }

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

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

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

        /* Mobile nav */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: var(--card);
            border-bottom: 1px solid var(--border);
            padding: 16px 20px;
            z-index: 99;
            flex-direction: column;
            gap: 8px;
            box-shadow: var(--shadow-sm);
        }

        .mobile-nav a {
            padding: 10px 0;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            border-bottom: 1px solid var(--border);
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--secondary);
            color: #FFFFFF;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            border: 1px solid var(--secondary);
            letter-spacing: 0.3px;
        }

        .btn-primary:hover {
            background: var(--secondary-hover);
            border-color: var(--secondary-hover);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--text);
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            border: 1.5px solid var(--text);
            letter-spacing: 0.3px;
        }

        .btn-secondary:hover {
            background: var(--text);
            color: #FFFFFF;
            border-color: var(--text);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        /* Breadcrumb */
        .breadcrumb-section {
            padding: 20px 0 0;
            background: var(--bg);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin: 0;
            padding: 0;
            list-style: none;
            background: transparent;
        }

        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb li:not(:last-child)::after {
            content: '/';
            color: var(--text-light);
            font-size: 13px;
        }

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

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

        .breadcrumb .current {
            color: var(--text);
            font-weight: 600;
        }

        /* Category Hero - Left aligned H1 + small banner */
        .category-hero {
            padding: 28px 0 32px;
            background: var(--bg);
        }

        .category-hero-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
        }

        .category-hero-content {
            padding-right: 16px;
        }

        .category-hero-content .cat-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--secondary);
            color: #FFFFFF;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }

        .category-hero-content h1 {
            font-size: 36px;
            font-weight: 800;
            color: var(--text);
            margin: 0 0 14px;
            line-height: 1.3;
            letter-spacing: -0.5px;
        }

        .category-hero-content .cat-lead {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
            margin: 0;
            max-width: 560px;
        }

        .category-hero-image {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .category-hero-image img {
            width: 100%;
            height: 240px;
            object-fit: cover;
            border-radius: var(--radius-card);
        }

        .category-hero-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(28, 28, 28, 0.28) 0%, rgba(28, 28, 28, 0.02) 60%);
            pointer-events: none;
            border-radius: var(--radius-card);
        }

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

        .section-alt {
            background: var(--card);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-dark {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.82);
        }

        .section-dark h2,
        .section-dark h3 {
            color: #FFFFFF;
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 32px;
            flex-wrap: wrap;
        }

        .section-header h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            margin: 0;
            letter-spacing: -0.3px;
            line-height: 1.3;
        }

        .section-header .section-sub {
            font-size: 14px;
            color: var(--text-muted);
            margin: 6px 0 0;
        }

        .section-header .more-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--secondary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
            transition: color var(--transition);
        }

        .section-header .more-link:hover {
            color: var(--secondary-hover);
        }

        .section-header .more-link .arrow {
            font-size: 16px;
            line-height: 1;
        }

        /* Article cards grid */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gap);
        }

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

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

        .article-card .card-img {
            width: 100%;
            height: 190px;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
            transition: transform var(--transition);
        }

        .article-card:hover .card-img {
            transform: scale(1.03);
        }

        .article-card .card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }

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

        .article-card .card-tag {
            display: inline-block;
            background: rgba(14, 138, 95, 0.1);
            color: var(--secondary);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 4px;
            letter-spacing: 0.3px;
        }

        .article-card .card-date {
            font-size: 12px;
            color: var(--text-light);
        }

        .article-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin: 0;
            line-height: 1.45;
            letter-spacing: -0.2px;
        }

        .article-card h3 a {
            color: var(--text);
            transition: color var(--transition);
        }

        .article-card h3 a:hover {
            color: var(--secondary);
        }

        .article-card .card-excerpt {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.75;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card .card-read {
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: auto;
        }

        .article-card .card-read:hover {
            color: var(--secondary-hover);
        }

        /* Featured / Editor pick */
        .featured-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: var(--gap);
        }

        .featured-main {
            background: var(--card);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .featured-main:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .featured-main .featured-img {
            width: 100%;
            height: 280px;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
            transition: transform var(--transition);
        }

        .featured-main:hover .featured-img {
            transform: scale(1.02);
        }

        .featured-main .featured-body {
            padding: 22px 24px 24px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .featured-main h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin: 0;
            line-height: 1.4;
        }

        .featured-main .featured-excerpt {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.75;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .featured-side {
            display: flex;
            flex-direction: column;
            gap: var(--gap-sm);
        }

        .featured-side-card {
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .featured-side-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .featured-side-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin: 0;
            line-height: 1.4;
        }

        .featured-side-card .side-excerpt {
            font-size: 13px;
            color: var(--text-body);
            line-height: 1.7;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .featured-side-card .side-meta {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* Data insight section */
        .insight-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gap-sm);
        }

        .insight-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-card);
            padding: 20px;
            text-align: center;
            transition: all var(--transition);
        }

        .insight-card:hover {
            background: rgba(255, 255, 255, 0.09);
            transform: translateY(-3px);
        }

        .insight-card .insight-num {
            font-size: 30px;
            font-weight: 800;
            color: var(--gold);
            margin-bottom: 4px;
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
        }

        .insight-card .insight-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.5;
        }

        .insight-card.highlight-red .insight-num {
            color: var(--accent);
        }

        .insight-card.highlight-green .insight-num {
            color: var(--secondary);
        }

        /* Reader interaction */
        .reader-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .reader-item {
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 16px 20px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            align-items: flex-start;
            gap: 14px;
        }

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

        .reader-item .reader-avatar {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFFFFF;
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
        }

        .reader-item .reader-avatar.av2 {
            background: var(--secondary);
        }

        .reader-item .reader-avatar.av3 {
            background: var(--accent);
        }

        .reader-item .reader-avatar.av4 {
            background: var(--gold);
        }

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

        .reader-item .reader-topic {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 4px;
            line-height: 1.4;
        }

        .reader-item .reader-desc {
            font-size: 13px;
            color: var(--text-body);
            line-height: 1.7;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .reader-item .reader-meta {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 4px;
            display: flex;
            gap: 10px;
        }

        /* Footer */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.72);
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand h3 {
            color: #FFFFFF;
            font-size: 20px;
            font-weight: 700;
            margin: 0 0 10px;
            letter-spacing: 0.5px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.65);
            margin: 0;
            max-width: 320px;
        }

        .footer-col h4 {
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 700;
            margin: 0 0 12px;
            letter-spacing: 0.3px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition);
        }

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

        .footer-contact p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin: 0 0 8px;
            line-height: 1.7;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 12px;
            color: #AAAAAA;
        }

        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 12px;
        }

        .footer-bottom-links a {
            color: #AAAAAA;
            transition: color var(--transition);
            font-size: 12px;
        }

        .footer-bottom-links a:hover {
            color: #FFFFFF;
        }

        .footer-bottom-links .separator {
            color: #555555;
            font-size: 12px;
        }

        /* Responsive */
        @media (max-width: 1199px) {
            .article-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .insight-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 991px) {
            .main-nav {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-nav.show {
                display: flex;
            }
            .category-hero-inner {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .category-hero-image img {
                height: 180px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .section {
                padding: var(--section-padding-mobile);
            }
        }

        @media (max-width: 767px) {
            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .article-grid {
                grid-template-columns: 1fr;
            }
            .article-card .card-img {
                height: 180px;
            }
            .insight-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .insight-card .insight-num {
                font-size: 24px;
            }
            .featured-main .featured-img {
                height: 200px;
            }
            .category-hero-content h1 {
                font-size: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .footer-bottom-links {
                flex-wrap: wrap;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-hero-content h1 {
                font-size: 24px;
            }
            .category-hero-image img {
                height: 150px;
            }
            .insight-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .insight-card {
                padding: 14px;
            }
            .insight-card .insight-num {
                font-size: 20px;
            }
            .article-card .card-body {
                padding: 14px 16px 16px;
            }
            .article-card h3 {
                font-size: 15px;
            }
            .btn-primary,
            .btn-secondary {
                padding: 10px 20px;
                font-size: 14px;
            }
        }

/* roulang page: category3 */
:root {
      --primary: #1C1C1C;
      --primary-light: #2A2A2A;
      --primary-soft: #3A3A3A;
      --secondary: #0E8A5F;
      --secondary-hover: #0B7A52;
      --accent: #C8443A;
      --accent-hover: #B33A30;
      --gold: #B8935A;
      --bg: #F6F4F1;
      --card: #FFFFFF;
      --text: #1C1C1C;
      --text-body: #4A4A4A;
      --text-muted: #777777;
      --text-light: #AAAAAA;
      --border: #E8E5E0;
      --border-focus: #D0CCC4;
      --radius-card: 12px;
      --radius-btn: 8px;
      --radius-img: 8px;
      --shadow-sm: 0 2px 10px rgba(28,28,28,0.06);
      --shadow-md: 0 6px 18px rgba(28,28,28,0.12);
      --shadow-lg: 0 12px 36px rgba(28,28,28,0.15);
      --transition: 0.25s ease;
      --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      --container-max: 1200px;
      --gap: 24px;
      --gap-sm: 16px;
      --section-padding: 72px 0;
      --section-padding-mobile: 48px 0;
    }

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

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

    body {
      font-family: var(--font-sans);
      background-color: var(--bg);
      color: var(--text-body);
      font-size: 16px;
      line-height: 1.85;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      min-height: 100vh;
      margin: 0;
    }

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

    a:hover {
      color: var(--secondary);
    }

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

    button,
    input {
      font-family: var(--font-sans);
      font-size: 16px;
    }

    button {
      cursor: pointer;
      border: none;
      outline: none;
      background: none;
    }

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

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

    /* Header & Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: var(--card);
      border-bottom: 1px solid var(--border);
      height: 64px;
      display: flex;
      align-items: center;
      box-shadow: 0 1px 4px rgba(28,28,28,0.02);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      width: 100%;
    }

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

    .logo-mark {
      width: 38px;
      height: 38px;
      background: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 14px;
      color: var(--card);
      flex-shrink: 0;
    }

    .logo-mark span {
      transform: translateY(-1px);
    }

    .logo-text {
      font-weight: 700;
      font-size: 20px;
      color: var(--text);
      letter-spacing: 0.5px;
    }

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

    .main-nav {
      display: flex;
      align-items: center;
      gap: 28px;
    }

    .main-nav a {
      font-size: 14px;
      font-weight: 600;
      color: var(--text);
      position: relative;
      padding: 4px 0;
      letter-spacing: 0.3px;
      white-space: nowrap;
    }

    .main-nav a::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--secondary);
      transition: width var(--transition);
    }

    .main-nav a:hover::after,
    .main-nav a.active::after {
      width: 100%;
    }

    .main-nav a.active {
      color: var(--secondary);
    }

    .nav-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: transparent;
      padding: 6px;
      border-radius: var(--radius-btn);
    }

    .nav-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--text);
      border-radius: 2px;
      transition: all var(--transition);
    }

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

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

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

    /* Mobile nav */
    .mobile-nav {
      display: none;
      position: fixed;
      top: 64px;
      left: 0;
      right: 0;
      background: var(--card);
      border-bottom: 1px solid var(--border);
      padding: 16px 20px;
      z-index: 99;
      flex-direction: column;
      gap: 8px;
      box-shadow: var(--shadow-sm);
    }

    .mobile-nav a {
      padding: 10px 0;
      font-size: 15px;
      font-weight: 600;
      color: var(--text);
      border-bottom: 1px solid var(--border);
    }

    .mobile-nav a:last-child {
      border-bottom: none;
    }

    .mobile-nav a.active {
      color: var(--secondary);
    }

    /* Main structure */
    main {
      display: block;
    }

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

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

    section.dark-bg {
      background: var(--primary);
      color: #f5f2ed;
    }

    section.dark-bg h2,
    section.dark-bg h3 {
      color: #ffffff;
    }

    section.dark-bg p {
      color: #d8d4cd;
    }

    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 1.5px;
      text-transform: uppercase;
      color: var(--secondary);
      margin-bottom: 10px;
    }

    .section-title {
      font-size: 28px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 14px;
      line-height: 1.3;
    }

    .section-lead {
      font-size: 16px;
      color: var(--text-body);
      max-width: 720px;
      margin-bottom: 32px;
    }

    /* Breadcrumb */
    .breadcrumb-nav {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 10px;
      flex-wrap: wrap;
    }

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

    .breadcrumb-nav a:hover {
      color: var(--secondary);
    }

    .breadcrumb-nav .separator {
      color: var(--text-light);
    }

    /* Category page hero */
    .category-hero {
      padding: 48px 0 40px;
      background: var(--bg);
      border-bottom: 1px solid var(--border);
    }

    .category-hero-grid {
      display: flex;
      align-items: center;
      gap: 40px;
    }

    .category-hero-text {
      flex: 1;
    }

    .category-hero-text h1 {
      font-size: 40px;
      font-weight: 700;
      color: var(--text);
      line-height: 1.2;
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }

    .category-hero-text .hero-lead {
      font-size: 17px;
      color: var(--text-body);
      line-height: 1.8;
      max-width: 620px;
    }

    .category-hero-img {
      width: 360px;
      flex-shrink: 0;
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow-md);
    }

    /* Article list grid */
    .article-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }

    .article-card {
      background: var(--card);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
      transition: transform var(--transition), box-shadow var(--transition);
      display: flex;
      flex-direction: column;
    }

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

    .article-card .card-img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      border-radius: 0;
    }

    .article-card .card-body {
      padding: 22px 22px 20px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }

    .article-card .card-tag {
      font-size: 13px;
      font-weight: 600;
      color: var(--secondary);
      margin-bottom: 8px;
      letter-spacing: 0.3px;
    }

    .article-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text);
      line-height: 1.4;
      margin-bottom: 10px;
    }

    .article-card p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 14px;
      flex: 1;
    }

    .article-card .card-meta {
      font-size: 13px;
      color: var(--text-muted);
      border-top: 1px solid var(--border);
      padding-top: 12px;
    }

    .view-more-wrap {
      text-align: center;
      margin-top: 36px;
    }

    .btn {
      display: inline-block;
      background: var(--secondary);
      color: #fff;
      font-weight: 600;
      font-size: 15px;
      padding: 12px 26px;
      border-radius: var(--radius-btn);
      transition: all var(--transition);
      letter-spacing: 0.3px;
    }

    .btn:hover {
      background: var(--secondary-hover);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(14,138,95,0.25);
    }

    .btn-outline {
      background: transparent;
      color: var(--text);
      border: 1.5px solid var(--text);
      padding: 11px 24px;
    }

    .btn-outline:hover {
      background: var(--text);
      color: #fff;
      transform: translateY(-2px);
    }

    /* Data insight table */
    .data-table-wrapper {
      overflow-x: auto;
      margin-bottom: 24px;
      border-radius: var(--radius-card);
      background: var(--card);
      box-shadow: var(--shadow-sm);
    }

    .data-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 680px;
    }

    .data-table th,
    .data-table td {
      padding: 14px 18px;
      text-align: left;
      font-size: 14px;
      color: var(--text-body);
      border-bottom: 1px solid var(--border);
    }

    .data-table th {
      background: var(--primary);
      color: #fff;
      font-weight: 600;
      font-size: 14px;
      letter-spacing: 0.3px;
    }

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

    .data-table tbody tr:nth-child(even) {
      background: #FAF9F7;
    }

    .data-table tbody tr:hover {
      background: #F1F0EC;
    }

    .insight-text {
      background: var(--card);
      padding: 22px 24px;
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-sm);
      font-size: 15px;
      color: var(--text-body);
      line-height: 1.9;
    }

    /* Editor pick / features */
    .feature-card {
      background: var(--card);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-sm);
      padding: 28px;
      display: flex;
      gap: 24px;
      align-items: flex-start;
      transition: transform var(--transition), box-shadow var(--transition);
    }

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

    .feature-card .feature-img {
      width: 140px;
      height: 140px;
      object-fit: cover;
      border-radius: var(--radius-img);
      flex-shrink: 0;
    }

    .feature-card .feature-content h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 10px;
      line-height: 1.35;
    }

    .feature-card .feature-content p {
      font-size: 15px;
      color: var(--text-body);
      line-height: 1.8;
    }

    /* Special feature */
    .special-banner {
      background-size: cover;
      background-position: center;
      border-radius: var(--radius-card);
      padding: 48px 40px;
      color: #fff;
      box-shadow: var(--shadow-md);
      position: relative;
      overflow: hidden;
    }

    .special-banner::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(to right, rgba(28,28,28,0.92) 0%, rgba(28,28,28,0.65) 60%, rgba(28,28,28,0.2) 100%);
      border-radius: var(--radius-card);
    }

    .special-banner .special-content {
      position: relative;
      z-index: 1;
      max-width: 640px;
    }

    .special-banner h3 {
      font-size: 26px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 14px;
      line-height: 1.35;
    }

    .special-banner p {
      font-size: 15px;
      color: #e5e2dc;
      line-height: 1.9;
      margin-bottom: 20px;
    }

    .special-banner .btn {
      background: var(--accent);
    }

    .special-banner .btn:hover {
      background: var(--accent-hover);
    }

    /* Bottom info bar */
    .bottom-info-bar {
      background: #f0ede8;
      padding: 28px 0;
      border-top: 1px solid var(--border);
    }

    .bottom-info-bar .info-grid {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      font-size: 13px;
      color: var(--text-muted);
    }

    .bottom-info-bar a {
      color: var(--text-muted);
    }

    .bottom-info-bar a:hover {
      color: var(--secondary);
    }

    /* Footer */
    .site-footer {
      background: var(--primary);
      color: #e5e2dc;
      padding: 56px 0 24px;
      font-size: 14px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 32px;
      margin-bottom: 36px;
    }

    .footer-brand h3 {
      font-size: 20px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 14px;
    }

    .footer-brand p {
      font-size: 14px;
      color: #c9c6c0;
      line-height: 1.8;
      max-width: 300px;
    }

    .footer-col h4 {
      font-size: 15px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 14px;
    }

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

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

    .footer-col ul li a {
      color: #c9c6c0;
      font-size: 14px;
      transition: color var(--transition);
    }

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

    .footer-contact p {
      color: #c9c6c0;
      font-size: 14px;
      line-height: 1.7;
      margin-bottom: 8px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.1);
      padding-top: 20px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      font-size: 12px;
      color: #AAAAAA;
    }

    .footer-bottom-links {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
    }

    .footer-bottom-links a {
      color: #AAAAAA;
      font-size: 12px;
    }

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

    .footer-bottom .separator {
      color: #555;
      margin: 0 4px;
    }

    /* Responsive */
    @media (max-width: 1199px) {
      .main-nav {
        gap: 20px;
      }
      .category-hero-img {
        width: 300px;
      }
    }

    @media (max-width: 991px) {
      .main-nav {
        display: none;
      }
      .nav-toggle {
        display: flex;
      }
      .mobile-nav {
        display: flex;
      }
      .category-hero-grid {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
      }
      .category-hero-img {
        width: 100%;
        max-width: 420px;
      }
      .category-hero-text h1 {
        font-size: 34px;
      }
      .article-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }
      .feature-card {
        flex-direction: column;
      }
      .feature-card .feature-img {
        width: 100%;
        height: 200px;
        object-fit: cover;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 28px;
      }
    }

    @media (max-width: 767px) {
      section {
        padding: var(--section-padding-mobile);
      }
      .category-hero {
        padding: 32px 0 28px;
      }
      .category-hero-text h1 {
        font-size: 30px;
      }
      .section-title {
        font-size: 23px;
      }
      .special-banner {
        padding: 28px 20px;
      }
      .special-banner h3 {
        font-size: 21px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 22px;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }

    @media (max-width: 520px) {
      .category-hero-text h1 {
        font-size: 26px;
      }
      .category-hero-text .hero-lead {
        font-size: 15px;
      }
      .article-card .card-img {
        height: 170px;
      }
      .article-card h3 {
        font-size: 17px;
      }
      .data-table th,
      .data-table td {
        padding: 10px 12px;
        font-size: 12px;
      }
      .insight-text {
        padding: 16px 18px;
        font-size: 14px;
      }
      .feature-card {
        padding: 20px;
      }
    }

/* roulang page: category4 */
:root {
            --primary: #1C1C1C;
            --primary-light: #2A2A2A;
            --primary-soft: #3A3A3A;
            --secondary: #0E8A5F;
            --secondary-hover: #0B7A52;
            --accent: #C8443A;
            --accent-hover: #B33A30;
            --gold: #B8935A;
            --bg: #F6F4F1;
            --card: #FFFFFF;
            --text: #1C1C1C;
            --text-body: #4A4A4A;
            --text-muted: #777777;
            --text-light: #AAAAAA;
            --border: #E8E5E0;
            --border-focus: #D0CCC4;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-img: 8px;
            --shadow-sm: 0 2px 10px rgba(28,28,28,0.06);
            --shadow-md: 0 6px 18px rgba(28,28,28,0.12);
            --shadow-lg: 0 12px 36px rgba(28,28,28,0.15);
            --transition: 0.25s ease;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --container-max: 1200px;
            --gap: 24px;
            --gap-sm: 16px;
            --section-padding: 72px 0;
            --section-padding-mobile: 48px 0;
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text-body);
            font-size: 16px;
            line-height: 1.85;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

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

        a:hover {
            color: var(--secondary);
        }

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

        button,
        input {
            font-family: var(--font-sans);
            font-size: 16px;
        }

        button {
            cursor: pointer;
            border: none;
            outline: none;
            background: none;
        }

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

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

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--card);
            border-bottom: 1px solid var(--border);
            height: 64px;
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }

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

        .logo-mark {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
            color: var(--card);
            flex-shrink: 0;
        }

        .logo-mark span {
            transform: translateY(-1px);
        }

        .logo-text {
            font-weight: 700;
            font-size: 20px;
            color: var(--text);
            letter-spacing: 0.5px;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .main-nav a {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            position: relative;
            padding: 4px 0;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary);
            transition: width var(--transition);
        }

        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }

        .main-nav a.active {
            color: var(--secondary);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            padding: 6px;
            border-radius: var(--radius-btn);
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition);
        }

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

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

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

        .mobile-nav {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: var(--card);
            border-bottom: 1px solid var(--border);
            padding: 16px 20px;
            z-index: 99;
            flex-direction: column;
            gap: 4px;
            box-shadow: var(--shadow-sm);
        }

        .mobile-nav a {
            padding: 10px 0;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            border-bottom: 1px solid var(--border);
        }

        .mobile-nav a:last-child {
            border-bottom: none;
        }

        .mobile-nav a.active {
            color: var(--secondary);
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            padding: 16px 0;
            background: transparent;
            font-size: 13px;
            color: var(--text-muted);
        }

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

        .breadcrumb-bar a:hover {
            color: var(--secondary);
        }

        .breadcrumb-bar .separator {
            margin: 0 8px;
            color: var(--text-light);
        }

        .breadcrumb-bar .current {
            color: var(--text);
            font-weight: 500;
        }

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

        .section-header {
            margin-bottom: 32px;
        }

        .section-header h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }

        .section-header p {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
            letter-spacing: 0.5px;
            margin-bottom: 8px;
            text-transform: uppercase;
        }

        /* Category Page Hero (small banner) */
        .category-hero {
            padding: 40px 0 24px;
            background: var(--bg);
        }

        .category-hero-inner {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 36px;
            align-items: center;
        }

        .category-hero-text h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .category-hero-text .lead {
            font-size: 16px;
            color: var(--text-body);
            line-height: 1.85;
            max-width: 620px;
            margin-bottom: 0;
        }

        .category-hero-image {
            overflow: hidden;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-md);
        }

        .category-hero-image img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: var(--radius-card);
        }

        /* Card Grid */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gap);
        }

        .review-card {
            background: var(--card);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .review-card .card-img {
            overflow: hidden;
            border-radius: var(--radius-img) var(--radius-img) 0 0;
            aspect-ratio: 16/10;
        }

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

        .review-card:hover .card-img img {
            transform: scale(1.03);
        }

        .review-card .card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .review-card .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .review-card .card-tag {
            display: inline-block;
            background: #E8F5EE;
            color: var(--secondary);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 20px;
            letter-spacing: 0.3px;
        }

        .review-card .card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 8px;
            letter-spacing: 0.2px;
        }

        .review-card .card-excerpt {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }

        .review-card .card-rating {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
        }

        .review-card .card-rating .stars {
            color: var(--gold);
            letter-spacing: 1px;
            font-size: 15px;
        }

        .review-card .card-rating .score {
            color: var(--accent);
            font-weight: 700;
        }

        .review-card .card-price {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* Comparison Table */
        .comparison-section {
            background: var(--primary);
            color: #fff;
            padding: var(--section-padding);
        }

        .comparison-section .section-header h2 {
            color: #fff;
        }

        .comparison-section .section-header p {
            color: #CCCCCC;
        }

        .comparison-section .section-header .section-tag {
            color: var(--gold);
        }

        .table-responsive {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--card);
            color: var(--text-body);
            font-size: 14px;
            min-width: 720px;
        }

        .comparison-table thead th {
            background: var(--primary-soft);
            color: #fff;
            font-weight: 600;
            text-align: left;
            padding: 16px 18px;
            font-size: 13px;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .comparison-table tbody td {
            padding: 14px 18px;
            border-bottom: 1px solid var(--border);
            vertical-align: middle;
        }

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

        .comparison-table tbody tr:hover td {
            background: #FAFAF8;
        }

        .comparison-table .equip-name {
            font-weight: 600;
            color: var(--text);
        }

        .comparison-table .score-cell {
            font-weight: 700;
            color: var(--accent);
            font-size: 15px;
        }

        .comparison-table .price-cell {
            color: var(--text-muted);
            white-space: nowrap;
        }

        .comparison-table .tag-cell {
            display: inline-block;
            background: #E8F5EE;
            color: var(--secondary);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 20px;
        }

        .comparison-table .tag-cell.warm {
            background: #FDEAE8;
            color: var(--accent);
        }

        /* Editor Pick */
        .editor-pick-section {
            background: var(--bg);
        }

        .editor-pick-card {
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            display: flex;
            gap: 24px;
            align-items: flex-start;
            transition: all var(--transition);
        }

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

        .editor-pick-card .pick-icon {
            width: 48px;
            height: 48px;
            background: #E8F5EE;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            flex-shrink: 0;
            color: var(--secondary);
        }

        .editor-pick-card .pick-content h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 8px;
        }

        .editor-pick-card .pick-content p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.75;
            margin-bottom: 0;
        }

        .editor-pick-card .pick-content .pick-note {
            font-size: 13px;
            color: var(--gold);
            font-weight: 600;
            margin-top: 8px;
            display: block;
        }

        /* FAQ */
        .faq-section {
            background: #FFF;
            padding: var(--section-padding);
        }

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

        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 10px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 22px;
            background: var(--card);
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            letter-spacing: 0.2px;
            width: 100%;
            text-align: left;
            transition: all var(--transition);
            border-radius: 10px;
        }

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

        .faq-question .faq-number {
            display: inline-block;
            background: #E8F5EE;
            color: var(--secondary);
            font-size: 13px;
            font-weight: 700;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            text-align: center;
            line-height: 28px;
            flex-shrink: 0;
        }

        .faq-question .faq-toggle {
            font-size: 22px;
            color: var(--text-muted);
            font-weight: 400;
            transition: transform var(--transition);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.25s ease, padding 0.25s ease;
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 22px 18px;
        }

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

        /* Footer */
        .site-footer {
            background: var(--primary);
            color: #CCCCCC;
            padding: 48px 0 24px;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 36px;
            margin-bottom: 32px;
        }

        .site-footer .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .site-footer .footer-brand p {
            font-size: 14px;
            color: #AAAAAA;
            line-height: 1.7;
            max-width: 300px;
            margin-bottom: 0;
        }

        .site-footer .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

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

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

        .site-footer .footer-col ul li a {
            font-size: 14px;
            color: #AAAAAA;
            transition: color var(--transition);
        }

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

        .site-footer .footer-contact p {
            font-size: 14px;
            color: #AAAAAA;
            margin-bottom: 8px;
            line-height: 1.6;
        }

        .site-footer .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid #333333;
            font-size: 12px;
            color: #AAAAAA;
        }

        .site-footer .footer-bottom-links {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
        }

        .site-footer .footer-bottom-links a {
            color: #AAAAAA;
            font-size: 12px;
            transition: color var(--transition);
        }

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

        .site-footer .footer-bottom-links .separator {
            color: #555555;
            margin: 0 6px;
        }

        .site-footer .footer-bottom span {
            font-size: 12px;
            color: #AAAAAA;
        }

        /* Buttons */
        .btn-primary {
            background: var(--secondary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.3px;
            transition: all var(--transition);
            display: inline-block;
            text-align: center;
        }

        .btn-primary:hover {
            background: var(--secondary-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-secondary {
            background: transparent;
            color: var(--text);
            border: 2px solid var(--text);
            border-radius: var(--radius-btn);
            padding: 10px 26px;
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.3px;
            transition: all var(--transition);
            display: inline-block;
            text-align: center;
        }

        .btn-secondary:hover {
            background: var(--text);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid #fff;
            border-radius: var(--radius-btn);
            padding: 10px 26px;
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.3px;
            transition: all var(--transition);
            display: inline-block;
            text-align: center;
        }

        .btn-outline-light:hover {
            background: #fff;
            color: var(--primary);
            transform: translateY(-2px);
        }

        /* Section alternate backgrounds */
        .section-alt {
            background: #FFF;
        }

        .section-dark {
            background: var(--primary);
            color: #fff;
        }

        .section-dark h2 {
            color: #fff;
        }

        .section-dark p {
            color: #CCCCCC;
        }

        /* Bottom info bar */
        .bottom-info-bar {
            background: var(--primary);
            color: #AAAAAA;
            padding: 20px 0;
            font-size: 12px;
        }

        .bottom-info-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
        }

        .bottom-info-bar a {
            color: #AAAAAA;
            transition: color var(--transition);
            font-size: 12px;
        }

        .bottom-info-bar a:hover {
            color: var(--secondary);
        }

        .bottom-info-bar .separator {
            color: #555555;
            margin: 0 6px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--gap-sm);
            }

            .category-hero-inner {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .category-hero-image {
                order: -1;
            }

            .category-hero-image img {
                height: 180px;
            }

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

        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

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

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

            .category-hero {
                padding: 24px 0 16px;
            }

            .category-hero-text h1 {
                font-size: 28px;
            }

            .card-grid {
                grid-template-columns: 1fr;
                gap: var(--gap-sm);
            }

            .editor-pick-card {
                flex-direction: column;
                padding: 20px;
                gap: 14px;
            }

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

            .faq-question {
                padding: 14px 16px;
                font-size: 15px;
                gap: 8px;
            }

            .faq-answer {
                padding: 0 16px;
            }

            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }

            .faq-answer p {
                font-size: 14px;
            }

            .site-footer {
                padding: 36px 0 20px;
            }

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

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

            .bottom-info-bar .container {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }

        @media (max-width: 520px) {
            .category-hero-text h1 {
                font-size: 24px;
            }

            .category-hero-image img {
                height: 150px;
            }

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

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

            .review-card .card-excerpt {
                font-size: 13px;
            }

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

            .comparison-table {
                font-size: 12px;
                min-width: 560px;
            }

            .comparison-table thead th {
                padding: 10px 12px;
                font-size: 11px;
            }

            .comparison-table tbody td {
                padding: 10px 12px;
                font-size: 12px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1C1C1C;
            --primary-light: #2A2A2A;
            --primary-soft: #3A3A3A;
            --secondary: #0E8A5F;
            --secondary-hover: #0B7A52;
            --accent: #C8443A;
            --accent-hover: #B33A30;
            --gold: #B8935A;
            --bg: #F6F4F1;
            --card: #FFFFFF;
            --text: #1C1C1C;
            --text-body: #4A4A4A;
            --text-muted: #777777;
            --text-light: #AAAAAA;
            --border: #E8E5E0;
            --border-focus: #D0CCC4;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-img: 8px;
            --shadow-sm: 0 2px 10px rgba(28,28,28,0.06);
            --shadow-md: 0 6px 18px rgba(28,28,28,0.12);
            --shadow-lg: 0 12px 36px rgba(28,28,28,0.15);
            --transition: 0.25s ease;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --container-max: 1200px;
            --gap: 24px;
            --gap-sm: 16px;
            --section-padding: 72px 0;
            --section-padding-mobile: 48px 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text-body);
            font-size: 16px;
            line-height: 1.85;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        img {
            display: block;
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-img);
        }
        button,
        input {
            font-family: var(--font-sans);
            font-size: 16px;
        }
        button {
            cursor: pointer;
            border: none;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--card);
            border-bottom: 1px solid var(--border);
            height: 64px;
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
            color: var(--card);
            flex-shrink: 0;
        }
        .logo-mark span {
            transform: translateY(-1px);
        }
        .logo-text {
            font-weight: 700;
            font-size: 20px;
            color: var(--text);
            letter-spacing: 0.5px;
        }
        .logo-text:hover {
            color: var(--secondary);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            position: relative;
            padding: 4px 0;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary);
            transition: width var(--transition);
        }
        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }
        .main-nav a.active {
            color: var(--secondary);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            padding: 6px;
            border-radius: var(--radius-btn);
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-nav {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: var(--card);
            border-bottom: 1px solid var(--border);
            padding: 16px 20px;
            z-index: 99;
            flex-direction: column;
            gap: 8px;
            box-shadow: var(--shadow-sm);
        }
        .mobile-nav a {
            padding: 10px 0;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            border-bottom: 1px solid var(--border);
        }
        .mobile-nav a:last-child {
            border-bottom: none;
        }
        .breadcrumb-section {
            background: #EFECE7;
            padding: 18px 0;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            margin: 0;
            padding: 0;
            list-style: none;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb li+li::before {
            content: '/';
            color: var(--text-light);
            gap: 8px;
        }
        .breadcrumb a {
            color: var(--text-body);
        }
        .breadcrumb a:hover {
            color: var(--secondary);
        }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 600;
        }
        .page-header-section {
            padding: 48px 0 32px;
            background: #F6F4F1;
        }
        .page-header-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .page-header-content h1 {
            font-size: 36px;
            font-weight: 800;
            color: var(--text);
            margin: 0 0 16px;
            line-height: 1.3;
            letter-spacing: -0.5px;
        }
        .page-header-content .intro-text {
            font-size: 16px;
            color: var(--text-body);
            line-height: 1.85;
            margin: 0;
        }
        .page-header-image {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
        }
        .page-header-image img {
            width: 100%;
            height: 260px;
            object-fit: cover;
            border-radius: var(--radius-card);
        }
        .page-header-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(28,28,28,0.25) 0%, transparent 60%);
            border-radius: var(--radius-card);
            pointer-events: none;
        }
        .tag-badge {
            display: inline-block;
            background: #EFECE7;
            color: var(--text);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }
        .section {
            padding: var(--section-padding);
        }
        .section-alt {
            background: #EFECE7;
        }
        .section-dark {
            background: var(--primary);
            color: #E0E0E0;
        }
        .section-dark h2,
        .section-dark h3 {
            color: #FFFFFF;
        }
        .section-header {
            margin-bottom: 32px;
        }
        .section-header h2 {
            font-size: 24px;
            font-weight: 800;
            color: var(--text);
            margin: 0 0 8px;
            letter-spacing: -0.3px;
        }
        .section-header p {
            color: var(--text-muted);
            font-size: 15px;
            margin: 0;
        }
        .section-dark .section-header h2 {
            color: #FFFFFF;
        }
        .section-dark .section-header p {
            color: #AAAAAA;
        }
        .training-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--gap);
        }
        .training-card {
            background: var(--card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .training-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .training-card-image {
            overflow: hidden;
            height: 200px;
            flex-shrink: 0;
        }
        .training-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }
        .training-card:hover .training-card-image img {
            transform: scale(1.03);
        }
        .training-card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .training-card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .training-card-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 10px;
            line-height: 1.5;
        }
        .training-card-body p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            margin: 0;
            flex: 1;
        }
        .training-card-body .read-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
            margin-top: 12px;
            display: inline-block;
        }
        .training-card-body .read-more:hover {
            color: var(--secondary-hover);
        }
        .view-more-wrapper {
            text-align: center;
            margin-top: 32px;
        }
        .view-more-btn {
            display: inline-block;
            padding: 10px 28px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            border: 1px solid var(--border-focus);
            border-radius: var(--radius-btn);
            background: var(--card);
            transition: all var(--transition);
        }
        .view-more-btn:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            background: #F9FBF8;
        }
        .featured-panel {
            background: var(--card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 32px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }
        .featured-panel .featured-text h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 12px;
        }
        .featured-panel .featured-text p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
            margin: 0;
        }
        .featured-panel .featured-image {
            overflow: hidden;
            border-radius: var(--radius-img);
            height: 240px;
        }
        .featured-panel .featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .insight-list {
            display: grid;
            gap: 16px;
        }
        .insight-item {
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 20px 22px;
            box-shadow: var(--shadow-sm);
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: all var(--transition);
        }
        .insight-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }
        .insight-number {
            width: 40px;
            height: 40px;
            background: #EFECE7;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            color: var(--secondary);
            flex-shrink: 0;
        }
        .insight-content h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 6px;
        }
        .insight-content p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            margin: 0;
        }
        .site-footer {
            background: var(--primary);
            color: #D0D0D0;
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand h3 {
            color: #FFFFFF;
            font-size: 20px;
            font-weight: 700;
            margin: 0 0 12px;
        }
        .footer-brand p {
            font-size: 13px;
            color: #AAAAAA;
            line-height: 1.7;
            margin: 0;
        }
        .footer-col h4 {
            color: #FFFFFF;
            font-size: 14px;
            font-weight: 700;
            margin: 0 0 12px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin: 0 0 8px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: #AAAAAA;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--secondary);
        }
        .footer-contact p {
            font-size: 13px;
            color: #AAAAAA;
            margin: 0 0 8px;
            line-height: 1.7;
        }
        .footer-bottom {
            border-top: 1px solid #3A3A3A;
            padding-top: 16px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 12px;
            color: #AAAAAA;
        }
        .footer-bottom-links {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
        }
        .footer-bottom-links a {
            color: #AAAAAA;
            font-size: 12px;
        }
        .footer-bottom-links a:hover {
            color: var(--secondary);
        }
        .footer-bottom .separator {
            color: #555555;
        }
        @media (max-width: 991px) {
            .main-nav {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-nav.show {
                display: flex;
            }
            .page-header-wrapper {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .page-header-image {
                order: -1;
            }
            .training-grid {
                grid-template-columns: 1fr;
            }
            .featured-panel {
                grid-template-columns: 1fr;
                padding: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .section {
                padding: var(--section-padding-mobile);
            }
        }
        @media (max-width: 767px) {
            .page-header-content h1 {
                font-size: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .training-card-image {
                height: 160px;
            }
            .featured-panel .featured-image {
                height: 180px;
            }
            .section-header h2 {
                font-size: 20px;
            }
            .page-header-image img {
                height: 200px;
            }
        }
        @media (max-width: 520px) {
            .page-header-content h1 {
                font-size: 24px;
            }
            .page-header-image img {
                height: 160px;
            }
            .insight-item {
                flex-direction: column;
                gap: 10px;
            }
            .insight-number {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }
            .view-more-btn {
                padding: 8px 20px;
                font-size: 13px;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #1C1C1C;
            --primary-light: #2A2A2A;
            --primary-soft: #3A3A3A;
            --secondary: #0E8A5F;
            --secondary-hover: #0B7A52;
            --accent: #C8443A;
            --accent-hover: #B33A30;
            --gold: #B8935A;
            --bg: #F6F4F1;
            --card: #FFFFFF;
            --text: #1C1C1C;
            --text-body: #4A4A4A;
            --text-muted: #777777;
            --text-light: #AAAAAA;
            --border: #E8E5E0;
            --border-focus: #D0CCC4;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-img: 8px;
            --shadow-sm: 0 2px 10px rgba(28,28,28,0.06);
            --shadow-md: 0 6px 18px rgba(28,28,28,0.12);
            --shadow-lg: 0 12px 36px rgba(28,28,28,0.15);
            --transition: 0.25s ease;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --container-max: 1200px;
            --gap: 24px;
            --gap-sm: 16px;
            --section-padding: 72px 0;
            --section-padding-mobile: 48px 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text-body);
            font-size: 16px;
            line-height: 1.85;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            margin: 0;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        img {
            display: block;
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-img);
        }
        button,
        input {
            font-family: var(--font-sans);
            font-size: 16px;
        }
        button {
            cursor: pointer;
            border: none;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--card);
            border-bottom: 1px solid var(--border);
            height: 64px;
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
            color: var(--card);
            flex-shrink: 0;
        }
        .logo-mark span {
            transform: translateY(-1px);
        }
        .logo-text {
            font-weight: 700;
            font-size: 20px;
            color: var(--text);
            letter-spacing: 0.5px;
        }
        .logo-text:hover {
            color: var(--secondary);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            position: relative;
            padding: 4px 0;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary);
            transition: width var(--transition);
        }
        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }
        .main-nav a.active {
            color: var(--secondary);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            padding: 6px;
            border-radius: var(--radius-btn);
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        /* Mobile nav */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: var(--card);
            border-bottom: 1px solid var(--border);
            padding: 16px 20px;
            z-index: 99;
            flex-direction: column;
            gap: 8px;
            box-shadow: var(--shadow-sm);
        }
        .mobile-nav a {
            padding: 10px 0;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            border-bottom: 1px solid var(--border);
        }
        /* Typography */
        h1, h2, h3, h4, h5, h6 {
            margin: 0 0 1rem 0;
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
        }
        h1 {
            font-size: 36px;
            letter-spacing: 0.5px;
        }
        h2 {
            font-size: 26px;
            letter-spacing: 0.3px;
        }
        h3 {
            font-size: 18px;
            font-weight: 600;
            color: #333333;
        }
        h4 {
            font-size: 16px;
            font-weight: 600;
        }
        p {
            margin-bottom: 1rem;
        }
        /* Sections */
        .section {
            padding: var(--section-padding);
        }
        .section-white {
            background: var(--card);
        }
        .section-light {
            background: var(--bg);
        }
        .section-dark {
            background: var(--primary);
            color: #FFFFFF;
        }
        .section-dark h1,
        .section-dark h2,
        .section-dark h3 {
            color: #FFFFFF;
        }
        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            padding: 12px 20px;
            transition: all var(--transition);
            border: 1px solid transparent;
            text-align: center;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--secondary);
            color: #FFFFFF;
            border-color: var(--secondary);
        }
        .btn-primary:hover {
            background: var(--secondary-hover);
            border-color: var(--secondary-hover);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }
        .btn-secondary {
            background: transparent;
            color: var(--text);
            border-color: var(--text);
        }
        .btn-secondary:hover {
            background: var(--text);
            color: #FFFFFF;
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background: transparent;
            color: #FFFFFF;
            border-color: rgba(255,255,255,0.6);
        }
        .btn-outline-light:hover {
            background: rgba(255,255,255,0.1);
            border-color: #FFFFFF;
            color: #FFFFFF;
        }
        /* Cards */
        .card-custom {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            overflow: hidden;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .card-custom .card-img {
            overflow: hidden;
            border-radius: var(--radius-img) var(--radius-img) 0 0;
        }
        .card-custom .card-img img {
            transition: transform var(--transition);
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .card-custom:hover .card-img img {
            transform: scale(1.03);
        }
        .card-body-custom {
            padding: 20px;
        }
        .card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card-text {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 10px;
        }
        .card-meta {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .badge-custom {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            background: var(--secondary);
            color: #FFFFFF;
            letter-spacing: 0.3px;
        }
        .badge-outline {
            background: transparent;
            border: 1px solid var(--secondary);
            color: var(--secondary);
        }
        /* Breadcrumb */
        .breadcrumb-wrapper {
            padding: 20px 0 0 0;
        }
        .breadcrumb-nav {
            font-size: 14px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb-nav a {
            color: var(--text-muted);
        }
        .breadcrumb-nav a:hover {
            color: var(--secondary);
        }
        .breadcrumb-separator {
            color: var(--text-light);
        }
        /* Category Header */
        .category-header {
            padding: 32px 0 40px;
        }
        .category-header-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 32px;
            align-items: center;
        }
        .category-header h1 {
            font-size: 38px;
            margin-bottom: 16px;
        }
        .category-header .lead {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-body);
            margin-bottom: 0;
        }
        .category-header-img {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .category-header-img img {
            width: 100%;
            height: 220px;
            object-fit: cover;
        }
        /* Topic Cards */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gap-sm);
        }
        .topic-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 18px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .topic-card .topic-tag {
            font-size: 12px;
            font-weight: 700;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .topic-card h3 {
            font-size: 16px;
            margin-bottom: 4px;
        }
        .topic-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }
        .topic-card .topic-stats {
            display: flex;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
            margin-top: auto;
        }
        /* Article List */
        .article-list-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--gap);
        }
        .article-card-horizontal {
            display: flex;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            overflow: hidden;
        }
        .article-card-horizontal:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .article-card-horizontal .article-img {
            width: 40%;
            min-height: 160px;
        }
        .article-card-horizontal .article-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .article-card-horizontal .article-info {
            padding: 18px 20px;
            flex: 1;
        }
        .article-card-horizontal .article-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .article-card-horizontal .article-excerpt {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 10px;
        }
        .article-card-horizontal .article-meta {
            font-size: 13px;
            color: var(--text-muted);
        }
        /* Hot List */
        .hot-list {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }
        .hot-list-header {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border);
            background: #FAFAF9;
        }
        .hot-list-header h3 {
            margin: 0;
            font-size: 18px;
            color: var(--text);
        }
        .hot-list-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 20px;
            border-bottom: 1px solid var(--border);
            transition: background var(--transition);
        }
        .hot-list-item:last-child {
            border-bottom: none;
        }
        .hot-list-item:hover {
            background: #FAFAF9;
        }
        .hot-rank {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
        }
        .rank-1 { background: var(--gold); color: #FFFFFF; }
        .rank-2 { background: #A0A0A0; color: #FFFFFF; }
        .rank-3 { background: var(--accent); color: #FFFFFF; }
        .rank-other { background: var(--border); color: var(--text); }
        .hot-list-item .hot-info {
            flex: 1;
        }
        .hot-list-item .hot-title {
            font-weight: 600;
            color: var(--text);
            font-size: 15px;
            margin-bottom: 2px;
        }
        .hot-list-item .hot-meta {
            font-size: 12px;
            color: var(--text-muted);
        }
        .hot-list-item .hot-badge {
            font-size: 12px;
            color: var(--secondary);
            font-weight: 600;
            white-space: nowrap;
        }
        /* Data Insight */
        .insight-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gap-sm);
        }
        .insight-card {
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }
        .insight-number {
            font-size: 32px;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 4px;
        }
        .insight-label {
            font-size: 14px;
            color: var(--text-muted);
        }
        /* Editor Pick */
        .editor-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--gap);
        }
        .editor-card {
            background: var(--card);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            padding: 20px;
            display: flex;
            gap: 16px;
            transition: all var(--transition);
        }
        .editor-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .editor-card .editor-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--secondary);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            flex-shrink: 0;
        }
        .editor-card h3 {
            font-size: 16px;
            margin-bottom: 6px;
        }
        .editor-card p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 0;
        }
        /* Footer */
        .site-footer {
            background: var(--primary);
            color: var(--text-light);
            padding: 48px 0 20px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .site-footer h3,
        .site-footer h4 {
            color: #FFFFFF;
            margin-bottom: 16px;
        }
        .site-footer h3 {
            font-size: 20px;
        }
        .site-footer h4 {
            font-size: 15px;
            font-weight: 600;
        }
        .site-footer p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 8px;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul li a {
            color: var(--text-light);
            font-size: 14px;
            transition: color var(--transition);
        }
        .site-footer ul li a:hover {
            color: var(--secondary);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 20px;
            font-size: 12px;
            color: var(--text-light);
        }
        .footer-bottom-links {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
        }
        .footer-bottom-links a {
            color: var(--text-light);
            font-size: 12px;
        }
        .footer-bottom-links a:hover {
            color: var(--secondary);
        }
        .footer-bottom-links .separator {
            color: var(--text-light);
            opacity: 0.5;
        }
        /* Responsive */
        @media (max-width: 1199px) {
            .main-nav {
                gap: 20px;
            }
            .category-header-grid {
                grid-template-columns: 1fr 240px;
                gap: 24px;
            }
            .topic-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .insight-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (max-width: 991px) {
            .main-nav {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-nav {
                display: none;
            }
            .mobile-nav.open {
                display: flex;
            }
            .category-header-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .category-header-img {
                max-width: 400px;
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-list-grid {
                grid-template-columns: 1fr;
            }
            .insight-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .editor-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .section {
                padding: var(--section-padding-mobile);
            }
        }
        @media (max-width: 767px) {
            .site-header {
                height: 56px;
            }
            .mobile-nav {
                top: 56px;
            }
            .category-header h1 {
                font-size: 28px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .article-card-horizontal {
                flex-direction: column;
            }
            .article-card-horizontal .article-img {
                width: 100%;
                min-height: auto;
                height: 180px;
            }
            .insight-grid {
                grid-template-columns: 1fr 1fr;
            }
            .insight-number {
                font-size: 26px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .hot-list-item {
                flex-wrap: wrap;
                gap: 8px;
            }
            .hot-rank {
                width: 32px;
                height: 32px;
                font-size: 12px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .category-header h1 {
                font-size: 24px;
            }
            .hot-list-item {
                padding: 12px 14px;
            }
        }
        /* Section meta */
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            color: var(--secondary);
            letter-spacing: 0.5px;
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 26px;
            margin-bottom: 12px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 700px;
            margin-bottom: 32px;
        }
        .section-divider {
            border: none;
            height: 1px;
            background: var(--border);
            margin: 0;
        }

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