/* roulang page: index */
:root {
            --color-primary: #111316;
            --color-accent: #C8FF2E;
            --color-bg: #F7F8F5;
            --color-surface: #FFFFFF;
            --color-text: #17191D;
            --color-text-secondary: #5D6268;
            --color-border: #E4E7E0;
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-image: 12px;
            --shadow-card: 0 6px 20px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 12px 28px rgba(0, 0, 0, 0.08);
            --transition-fast: 180ms ease;
            --transition-base: 220ms ease;
            --transition-slow: 260ms ease;
            --font-sans: 'HarmonyOS Sans SC', 'PingFang SC', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --sidebar-width: 270px;
            --header-height: 64px;
            --container-max: 1200px;
            --section-spacing-desktop: 96px;
            --section-spacing-mobile: 56px;
            --gutter: 24px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
        }

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

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

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

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

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            height: var(--header-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            gap: 16px;
        }

        .site-header .logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }

        .site-header .logo .logo-dot {
            width: 10px;
            height: 10px;
            background-color: var(--color-accent);
            border-radius: 2px;
            display: inline-block;
            flex-shrink: 0;
        }

        .header-search {
            flex: 1;
            max-width: 380px;
            display: flex;
            align-items: center;
            background-color: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            padding: 8px 14px;
            gap: 8px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .header-search:focus-within {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(200, 255, 46, 0.15);
        }

        .header-search input {
            flex: 1;
            background: none;
            border: none;
            outline: none;
            color: var(--color-text);
            font-size: 14px;
            line-height: 1.5;
        }

        .header-search input::placeholder {
            color: var(--color-text-secondary);
            opacity: 0.7;
        }

        .header-search .search-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            color: var(--color-text-secondary);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .lang-switch {
            display: flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            color: var(--color-text-secondary);
            border: 1px solid var(--color-border);
            border-radius: 6px;
            padding: 6px 10px;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .lang-switch:hover {
            border-color: var(--color-accent);
            color: var(--color-text);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 6px;
            cursor: pointer;
            min-width: 44px;
            min-height: 44px;
            justify-content: center;
            align-items: center;
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background-color: var(--color-text);
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        /* Sidebar */
        .layout-wrapper {
            display: flex;
            max-width: var(--container-max);
            margin: 0 auto;
            position: relative;
        }

        .sidebar {
            width: var(--sidebar-width);
            flex-shrink: 0;
            position: sticky;
            top: var(--header-height);
            height: calc(100vh - var(--header-height));
            overflow-y: auto;
            padding: 24px 16px 32px 20px;
            border-right: 1px solid var(--color-border);
            background-color: var(--color-surface);
            z-index: 90;
        }

        .sidebar-title {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.8px;
            margin-bottom: 14px;
            padding-left: 4px;
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .sidebar-nav a {
            font-size: 14px;
            color: var(--color-text-secondary);
            padding: 8px 12px;
            border-radius: 6px;
            transition: all var(--transition-fast);
            border-left: 2px solid transparent;
            display: block;
            line-height: 1.4;
        }

        .sidebar-nav a:hover {
            background-color: rgba(200, 255, 46, 0.08);
            color: var(--color-text);
            border-left-color: var(--color-accent);
        }

        .sidebar-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
            border-left-color: var(--color-accent);
            background-color: rgba(200, 255, 46, 0.06);
        }

        .sidebar-section-tag {
            font-size: 11px;
            font-weight: 600;
            color: var(--color-text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.6px;
            padding: 16px 8px 6px;
            opacity: 0.6;
        }

        /* Main content */
        .main-content {
            flex: 1;
            min-width: 0;
            padding: 0;
        }

        /* Hero - 裂变邀请首屏 */
        .hero-section {
            padding: 80px 0 72px;
            background-image: url('/assets/images/8b27ed77b27766d4.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            border-bottom: 1px solid var(--color-border);
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(17, 19, 22, 0.88) 0%, rgba(17, 19, 22, 0.55) 100%);
            z-index: 1;
        }

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

        .hero-grid {
            display: flex;
            gap: 48px;
            align-items: center;
            justify-content: space-between;
        }

        .hero-text {
            flex: 1;
            max-width: 560px;
        }

        .hero-badge {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent);
            border: 1px solid var(--color-accent);
            border-radius: 20px;
            padding: 4px 14px;
            margin-bottom: 20px;
            letter-spacing: 0.4px;
            background-color: rgba(17, 19, 22, 0.7);
        }

        .hero-text h1 {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.3;
            color: #FFFFFF;
            margin-bottom: 18px;
            letter-spacing: -0.3px;
        }

        .hero-text .hero-subtitle {
            font-size: 17px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 30px;
            max-width: 500px;
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: var(--color-accent);
            color: var(--color-primary);
            font-weight: 600;
            font-size: 15px;
            padding: 13px 28px;
            border-radius: var(--radius-btn);
            transition: all var(--transition-base);
            border: 1px solid var(--color-accent);
            min-height: 48px;
            letter-spacing: 0.3px;
        }

        .btn-primary:hover {
            background-color: #b8e92a;
            border-color: #b8e92a;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(200, 255, 46, 0.25);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: transparent;
            color: #FFFFFF;
            font-weight: 500;
            font-size: 15px;
            padding: 13px 24px;
            border-radius: var(--radius-btn);
            transition: all var(--transition-base);
            border: 1px solid rgba(255, 255, 255, 0.5);
            min-height: 48px;
            letter-spacing: 0.3px;
        }

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

        .btn-secondary:active {
            transform: scale(0.98);
        }

        .hero-reward-panel {
            flex-shrink: 0;
            background-color: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: var(--radius-card);
            padding: 30px 28px;
            width: 360px;
            max-width: 100%;
        }

        .hero-reward-panel .reward-title {
            font-size: 18px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 8px;
        }

        .hero-reward-panel .reward-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
            line-height: 1.6;
        }

        .reward-tiers {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-bottom: 22px;
        }

        .reward-tier {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.8);
            padding: 8px 0;
            border-bottom: 1px dashed rgba(255, 255, 255, 0.2);
        }

        .reward-tier .tier-label {
            font-weight: 500;
        }

        .reward-tier .tier-value {
            font-weight: 600;
            color: var(--color-accent);
        }

        .progress-wrap {
            margin-bottom: 20px;
        }

        .progress-label {
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 8px;
        }

        .progress-bar {
            height: 8px;
            background-color: rgba(255, 255, 255, 0.15);
            border-radius: 4px;
            overflow: hidden;
        }

        .progress-fill {
            height: 100%;
            background-color: var(--color-accent);
            border-radius: 4px;
            transition: width 800ms ease;
            width: 0%;
        }

        .invite-code-box {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background-color: rgba(17, 19, 22, 0.7);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-btn);
            padding: 10px 14px;
            gap: 10px;
        }

        .invite-code-box .code-text {
            font-size: 14px;
            color: var(--color-accent);
            font-weight: 600;
            letter-spacing: 1px;
            font-family: monospace;
        }

        .invite-code-box .copy-btn {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.8);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 4px;
            padding: 4px 10px;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            min-height: 32px;
            display: flex;
            align-items: center;
        }

        .invite-code-box .copy-btn:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        /* Sections common */
        .section {
            padding: var(--section-spacing-desktop) 0;
        }

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

        .section-header {
            margin-bottom: 44px;
            max-width: 680px;
        }

        .section-header h2 {
            font-size: 26px;
            font-weight: 600;
            line-height: 1.35;
            color: var(--color-primary);
            margin-bottom: 14px;
            letter-spacing: -0.2px;
        }

        .section-header p {
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text-secondary);
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
            letter-spacing: 0.8px;
            text-transform: uppercase;
            margin-bottom: 10px;
            border-left: 3px solid var(--color-accent);
            padding-left: 10px;
            line-height: 1.2;
        }

        /* Pain point cards */
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
        }

        .pain-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
        }

        .pain-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(200, 255, 46, 0.5);
        }

        .pain-card .pain-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--color-border);
            line-height: 1;
            margin-bottom: 14px;
            transition: color var(--transition-base);
        }

        .pain-card:hover .pain-number {
            color: var(--color-accent);
        }

        .pain-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .pain-card p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* Solution cards */
        .solution-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
        }

        .solution-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

        .solution-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background-color: transparent;
            transition: background-color var(--transition-base);
        }

        .solution-card:hover::before {
            background-color: var(--color-accent);
        }

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

        .solution-card .solution-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background-color: rgba(200, 255, 46, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 20px;
            color: var(--color-primary);
        }

        .solution-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .solution-card p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            counter-reset: step;
        }

        .step-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 26px 22px;
            transition: all var(--transition-base);
            position: relative;
            text-align: center;
            box-shadow: var(--shadow-card);
        }

        .step-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(200, 255, 46, 0.5);
        }

        .step-card .step-number {
            font-size: 42px;
            font-weight: 700;
            color: var(--color-border);
            line-height: 1;
            margin-bottom: 12px;
            transition: color var(--transition-base);
        }

        .step-card:hover .step-number {
            color: var(--color-accent);
        }

        .step-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .step-card p {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.65;
        }

        /* Stats */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
        }

        .stat-item {
            text-align: center;
            padding: 26px 18px;
            background-color: var(--color-surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
        }

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

        .stat-item .stat-number {
            font-size: 42px;
            font-weight: 600;
            color: var(--color-primary);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: -1px;
        }

        .stat-item .stat-label {
            font-size: 14px;
            color: var(--color-text-secondary);
            font-weight: 500;
        }

        /* Testimonials */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
        }

        .testimonial-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 26px 22px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }

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

        .testimonial-card .testimonial-text {
            font-size: 14px;
            color: var(--color-text);
            line-height: 1.7;
            margin-bottom: 16px;
            font-style: italic;
        }

        .testimonial-card .testimonial-author {
            font-size: 13px;
            color: var(--color-text-secondary);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .testimonial-card .testimonial-author .author-avatar {
            width: 32px;
            height: 32px;
            background-color: rgba(200, 255, 46, 0.15);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 13px;
            color: var(--color-primary);
            flex-shrink: 0;
        }

        /* Scenario cards */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .scenario-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
        }

        .scenario-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(200, 255, 46, 0.5);
        }

        .scenario-card .scenario-emoji {
            font-size: 32px;
            margin-bottom: 12px;
            display: block;
        }

        .scenario-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .scenario-card p {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.65;
        }

        /* News list */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            border-top: 2px solid var(--color-primary);
        }

        .news-item {
            display: flex;
            gap: 20px;
            padding: 22px 0;
            border-bottom: 1px solid var(--color-border);
            transition: all var(--transition-base);
            align-items: flex-start;
        }

        .news-item:hover {
            background-color: rgba(200, 255, 46, 0.03);
            padding-left: 12px;
        }

        .news-date {
            flex-shrink: 0;
            width: 70px;
            text-align: center;
            font-size: 13px;
            color: var(--color-text-secondary);
            font-weight: 500;
            line-height: 1.5;
            border-right: 2px solid var(--color-border);
            padding-right: 16px;
        }

        .news-date .date-day {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-primary);
            display: block;
            line-height: 1.1;
        }

        .news-body {
            flex: 1;
            min-width: 0;
        }

        .news-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.45;
        }

        .news-body h3 a:hover {
            color: var(--color-text-secondary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .news-body .news-summary {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 10px;
        }

        .news-body .read-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
            border-bottom: 1px solid var(--color-accent);
            padding-bottom: 2px;
            transition: all var(--transition-fast);
            display: inline-block;
        }

        .news-body .read-more:hover {
            color: var(--color-accent);
            border-bottom-color: var(--color-primary);
        }

        /* Rankings */
        .rankings-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .ranking-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px 18px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }

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

        .ranking-card .ranking-header {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 14px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--color-border);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            padding: 7px 8px;
            border-radius: 6px;
            transition: background-color var(--transition-fast);
        }

        .ranking-item:hover {
            background-color: rgba(200, 255, 46, 0.06);
        }

        .ranking-item .rank-pos {
            width: 24px;
            height: 24px;
            border-radius: 4px;
            background-color: var(--color-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 12px;
            color: var(--color-text-secondary);
            flex-shrink: 0;
        }

        .ranking-item.top .rank-pos {
            background-color: var(--color-accent);
            color: var(--color-primary);
        }

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

        .ranking-item .rank-value {
            font-weight: 600;
            color: var(--color-text-secondary);
        }

        /* Tag cloud */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text);
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: 20px;
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .tag:hover {
            border-color: var(--color-accent);
            background-color: rgba(200, 255, 46, 0.08);
            transform: translateY(-1px);
        }

        /* Brand intro */
        .brand-intro {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 40px 36px;
            box-shadow: var(--shadow-card);
        }

        .brand-intro h2 {
            font-size: 24px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 18px;
            line-height: 1.35;
        }

        .brand-intro .intro-text {
            font-size: 15px;
            line-height: 1.85;
            color: var(--color-text);
            margin-bottom: 16px;
        }

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

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

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

        .faq-item.active {
            border-color: rgba(200, 255, 46, 0.6);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.04);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            transition: all var(--transition-fast);
            user-select: none;
            gap: 16px;
            min-height: 52px;
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform 200ms ease;
            color: var(--color-text-secondary);
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            color: var(--color-primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 200ms ease;
            padding: 0 22px;
        }

        .faq-answer-inner {
            padding-bottom: 20px;
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.75;
        }

        /* CTA section */
        .cta-section {
            background-color: var(--color-primary);
            border-radius: var(--radius-card);
            padding: 56px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(200, 255, 46, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -20%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(200, 255, 46, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 28px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
            line-height: 1.4;
        }

        .cta-section p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
            line-height: 1.7;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

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

        /* Footer */
        .site-footer {
            background-color: var(--color-primary);
            color: rgba(255, 255, 255, 0.8);
            padding: 52px 0 28px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-brand {
            grid-column: span 1;
        }

        .footer-brand .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .footer-brand .footer-logo .logo-dot {
            width: 10px;
            height: 10px;
            background-color: var(--color-accent);
            border-radius: 2px;
            display: inline-block;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 260px;
        }

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

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

        .footer-col ul a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }

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

        .footer-links-bottom {
            display: flex;
            gap: 16px;
        }

        /* Mobile drawer */
        .drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background-color: rgba(0, 0, 0, 0.4);
            z-index: 150;
            opacity: 0;
            transition: opacity 220ms ease;
        }

        .drawer-overlay.show {
            opacity: 1;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: 280px;
            background-color: var(--color-surface);
            z-index: 160;
            transform: translateX(-100%);
            transition: transform 220ms ease;
            padding: 20px 16px;
            overflow-y: auto;
            box-shadow: 4px 0 20px rgba(0, 0, 0, 0.1);
        }

        .mobile-drawer.show {
            transform: translateX(0);
        }

        .mobile-drawer .drawer-logo {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 6px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--color-border);
        }

        .mobile-drawer .sidebar-nav a {
            font-size: 14px;
            padding: 10px 12px;
        }

        .mobile-drawer .close-drawer {
            position: absolute;
            top: 12px;
            right: 12px;
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 6px;
            font-size: 20px;
            color: var(--color-text-secondary);
            cursor: pointer;
            transition: all var(--transition-fast);
            min-height: 44px;
            min-width: 44px;
        }

        .mobile-drawer .close-drawer:hover {
            background-color: var(--color-bg);
            color: var(--color-text);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .sidebar {
                display: none;
            }

            .layout-wrapper {
                flex-direction: column;
            }

            .nav-toggle {
                display: flex;
            }

            .header-search {
                max-width: 240px;
            }

            .hero-section {
                padding: 60px 0 56px;
            }

            .hero-grid {
                flex-direction: column;
                gap: 36px;
                align-items: stretch;
            }

            .hero-reward-panel {
                width: 100%;
            }

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

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

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

        @media (max-width: 768px) {
            .site-header {
                padding: 0 14px;
                gap: 8px;
            }

            .site-header .logo {
                font-size: 17px;
            }

            .header-search {
                max-width: 160px;
                padding: 6px 10px;
            }

            .header-search input {
                font-size: 12px;
            }

            .header-actions .lang-switch {
                font-size: 11px;
                padding: 5px 7px;
            }

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

            .hero-text .hero-subtitle {
                font-size: 15px;
            }

            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }

            .btn-primary,
            .btn-secondary {
                width: 100%;
                min-height: 46px;
                font-size: 14px;
                padding: 11px 20px;
            }

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

            .section-header p {
                font-size: 14px;
            }

            .pain-grid,
            .solution-grid,
            .steps-grid,
            .stats-grid,
            .testimonial-grid,
            .scenario-grid,
            .rankings-grid {
                grid-template-columns: 1fr;
            }

            .news-item {
                flex-direction: column;
                gap: 8px;
                padding: 18px 0;
            }

            .news-date {
                width: auto;
                border-right: none;
                padding-right: 0;
                text-align: left;
                display: flex;
                align-items: center;
                gap: 6px;
                font-size: 12px;
            }

            .news-date .date-day {
                font-size: 20px;
                display: inline;
            }

            .brand-intro {
                padding: 28px 22px;
            }

            .brand-intro h2 {
                font-size: 20px;
            }

            .cta-section {
                padding: 36px 22px;
            }

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

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .footer-links-bottom {
                flex-wrap: wrap;
                justify-content: center;
            }

            .stat-item .stat-number {
                font-size: 32px;
            }

            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
                min-height: 48px;
            }

            .faq-answer-inner {
                font-size: 13px;
                padding-bottom: 16px;
            }
        }

        @media (max-width: 520px) {
            .site-header {
                padding: 0 10px;
                gap: 6px;
                height: 56px;
            }

            .site-header .logo {
                font-size: 15px;
                letter-spacing: 0;
            }

            .site-header .logo .logo-dot {
                width: 8px;
                height: 8px;
            }

            .header-search {
                max-width: 120px;
                padding: 5px 8px;
                gap: 4px;
            }

            .header-search input {
                font-size: 11px;
            }

            .header-actions {
                gap: 6px;
            }

            .header-actions .lang-switch {
                font-size: 10px;
                padding: 4px 6px;
            }

            .hero-section {
                padding: 44px 0 40px;
            }

            .hero-text h1 {
                font-size: 22px;
                letter-spacing: -0.2px;
            }

            .hero-badge {
                font-size: 11px;
                padding: 3px 10px;
                margin-bottom: 14px;
            }

            .hero-reward-panel {
                padding: 20px 16px;
            }

            .reward-tiers {
                gap: 6px;
                margin-bottom: 14px;
            }

            .reward-tier {
                font-size: 12px;
            }

            .section {
                padding: 44px 0;
            }

            .section-header {
                margin-bottom: 24px;
            }

            .section-header h2 {
                font-size: 18px;
            }

            .section-tag {
                font-size: 11px;
            }

            .pain-card,
            .solution-card,
            .step-card,
            .testimonial-card,
            .scenario-card,
            .ranking-card {
                padding: 20px 16px;
            }

            .pain-card .pain-number {
                font-size: 28px;
            }

            .step-card .step-number {
                font-size: 32px;
            }

            .news-body h3 {
                font-size: 14px;
            }

            .news-body .news-summary {
                font-size: 13px;
            }

            .brand-intro {
                padding: 22px 16px;
            }

            .brand-intro h2 {
                font-size: 18px;
            }

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

            .cta-section {
                padding: 28px 16px;
                border-radius: 12px;
            }

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

            .cta-section p {
                font-size: 13px;
            }

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

            .footer-brand p {
                max-width: 100%;
            }
        }

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

        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .section {
            animation: fadeInUp 300ms ease;
        }

/* roulang page: category3 */
:root {
            --color-primary: #111316;
            --color-accent: #C8FF2E;
            --color-bg: #F7F8F5;
            --color-surface: #FFFFFF;
            --color-text: #17191D;
            --color-text-secondary: #5D6268;
            --color-border: #E4E7E0;
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-image: 12px;
            --shadow-card: 0 6px 20px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 12px 28px rgba(0, 0, 0, 0.08);
            --transition-fast: 180ms ease;
            --transition-base: 220ms ease;
            --transition-slow: 260ms ease;
            --font-sans: 'HarmonyOS Sans SC', 'PingFang SC', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --sidebar-width: 270px;
            --header-height: 64px;
            --container-max: 1200px;
            --section-spacing-desktop: 96px;
            --section-spacing-mobile: 56px;
            --gutter: 24px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            margin: 0;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast), border-color var(--transition-fast);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-image);
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--gutter);
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            height: var(--header-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            gap: 16px;
        }
        .site-header .logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }
        .site-header .logo .logo-dot {
            width: 10px;
            height: 10px;
            background-color: var(--color-accent);
            border-radius: 2px;
            display: inline-block;
            flex-shrink: 0;
        }
        .header-search {
            flex: 1;
            max-width: 380px;
            display: flex;
            align-items: center;
            background-color: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            padding: 8px 14px;
            gap: 8px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .header-search:focus-within {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(200, 255, 46, 0.15);
        }
        .header-search input {
            flex: 1;
            background: none;
            border: none;
            outline: none;
            color: var(--color-text);
            font-size: 14px;
            line-height: 1.5;
            width: 100%;
        }
        .header-search input::placeholder {
            color: var(--color-text-secondary);
            opacity: 0.7;
        }
        .header-search .search-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            color: var(--color-text-secondary);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .lang-switch {
            font-size: 14px;
            color: var(--color-text-secondary);
            padding: 8px 14px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            cursor: pointer;
            transition: all var(--transition-fast);
            min-height: 44px;
            display: flex;
            align-items: center;
            background-color: var(--color-surface);
        }
        .lang-switch:hover {
            border-color: var(--color-accent);
            color: var(--color-text);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 6px;
            cursor: pointer;
            min-width: 44px;
            min-height: 44px;
            justify-content: center;
            align-items: center;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background-color: var(--color-text);
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        .layout-wrapper {
            display: flex;
            max-width: var(--container-max);
            margin: 0 auto;
            position: relative;
            gap: 0;
        }
        .sidebar-col {
            width: var(--sidebar-width);
            flex-shrink: 0;
            position: sticky;
            top: var(--header-height);
            height: calc(100vh - var(--header-height));
            overflow-y: auto;
            padding: 32px 16px 32px 8px;
            border-right: 1px solid var(--color-border);
            background-color: transparent;
        }
        .sidebar-title {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.8px;
            margin-bottom: 14px;
            padding-left: 4px;
        }
        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .sidebar-nav a {
            font-size: 14px;
            color: var(--color-text-secondary);
            padding: 8px 12px;
            border-radius: 6px;
            transition: all var(--transition-fast);
            border-left: 2px solid transparent;
            display: block;
            line-height: 1.4;
        }
        .sidebar-nav a:hover {
            background-color: rgba(200, 255, 46, 0.08);
            color: var(--color-text);
            border-left-color: var(--color-accent);
        }
        .sidebar-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
            border-left-color: var(--color-accent);
            background-color: rgba(200, 255, 46, 0.12);
        }
        .sidebar-section-tag {
            font-size: 11px;
            color: var(--color-text-secondary);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin: 18px 4px 6px;
            opacity: 0.6;
        }
        .main-col {
            flex: 1;
            min-width: 0;
            padding: 0 0 0 32px;
        }
        .breadcrumb {
            padding: 24px 0 0;
            font-size: 14px;
            color: var(--color-text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--color-accent);
        }
        .breadcrumb .breadcrumb-sep {
            color: var(--color-border);
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--color-text);
            font-weight: 500;
        }
        .page-hero {
            padding: 40px 0 32px;
            border-bottom: 1px solid var(--color-border);
            margin-bottom: 0;
        }
        .page-hero h1 {
            font-size: 36px;
            font-weight: 700;
            margin: 0 0 16px;
            letter-spacing: -0.5px;
            color: var(--color-primary);
            line-height: 1.25;
        }
        .page-hero .page-intro {
            font-size: 17px;
            color: var(--color-text-secondary);
            max-width: 720px;
            line-height: 1.9;
            margin: 0;
        }
        .page-hero .page-meta {
            margin-top: 20px;
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--color-text-secondary);
            align-items: center;
        }
        .page-hero .page-meta .badge {
            background-color: rgba(200, 255, 46, 0.15);
            color: var(--color-primary);
            padding: 4px 12px;
            border-radius: 20px;
            font-weight: 500;
            font-size: 12px;
            letter-spacing: 0.3px;
        }
        .section-block {
            padding: 48px 0;
            border-bottom: 1px solid var(--color-border);
        }
        .section-block:last-child {
            border-bottom: none;
        }
        .section-header {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }
        .section-header h2 {
            font-size: 24px;
            font-weight: 600;
            margin: 0;
            color: var(--color-primary);
            letter-spacing: -0.3px;
            line-height: 1.4;
        }
        .section-header .section-sub {
            font-size: 14px;
            color: var(--color-text-secondary);
            max-width: 480px;
            text-align: right;
            line-height: 1.6;
        }
        .data-rank-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 20px;
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 18px 20px;
            transition: all var(--transition-base);
            position: relative;
        }
        .rank-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(200, 255, 46, 0.5);
            transform: translateY(-2px);
        }
        .rank-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-text-secondary);
            min-width: 44px;
            text-align: center;
            letter-spacing: -0.5px;
        }
        .rank-item:nth-child(1) .rank-number {
            color: var(--color-primary);
            font-size: 34px;
        }
        .rank-item:nth-child(2) .rank-number {
            color: #5D6268;
        }
        .rank-item:nth-child(3) .rank-number {
            color: #8a6d3b;
        }
        .rank-item:nth-child(1) {
            border-left: 3px solid var(--color-accent);
        }
        .rank-content {
            flex: 1;
            min-width: 0;
        }
        .rank-content .rank-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            margin: 0 0 6px;
            line-height: 1.5;
        }
        .rank-content .rank-desc {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin: 0;
            line-height: 1.7;
        }
        .rank-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-top: 8px;
        }
        .rank-tags .tag {
            font-size: 12px;
            color: var(--color-text-secondary);
            background-color: var(--color-bg);
            border: 1px solid var(--color-border);
            padding: 2px 10px;
            border-radius: 20px;
            white-space: nowrap;
        }
        .rank-stat {
            text-align: right;
            flex-shrink: 0;
            min-width: 90px;
        }
        .rank-stat .stat-value {
            font-size: 28px;
            font-weight: 600;
            color: var(--color-primary);
            line-height: 1.2;
            letter-spacing: -0.5px;
        }
        .rank-stat .stat-label {
            font-size: 12px;
            color: var(--color-text-secondary);
            margin-top: 2px;
        }
        .rank-stat .stat-trend {
            font-size: 13px;
            font-weight: 600;
            color: #2e7d32;
            margin-top: 4px;
        }
        .rank-stat .stat-trend.down {
            color: #c62828;
        }
        .grid-2col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .data-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .data-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(200, 255, 46, 0.4);
        }
        .data-card .data-card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            background-color: var(--color-bg);
        }
        .data-card .data-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-slow);
        }
        .data-card:hover .data-card-img img {
            transform: scale(1.03);
        }
        .data-card .data-card-body {
            padding: 20px 22px;
        }
        .data-card .data-card-body h3 {
            font-size: 17px;
            font-weight: 600;
            margin: 0 0 10px;
            line-height: 1.5;
            color: var(--color-text);
        }
        .data-card .data-card-body p {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin: 0 0 16px;
            line-height: 1.7;
        }
        .data-card .data-card-body .read-more {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
            display: inline-block;
            padding: 4px 0;
            border-bottom: 2px solid var(--color-accent);
            transition: all var(--transition-fast);
        }
        .data-card .data-card-body .read-more:hover {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary);
            transform: translateX(4px);
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-cloud .tag-pill {
            font-size: 14px;
            color: var(--color-text-secondary);
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            padding: 8px 18px;
            border-radius: 24px;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .tag-cloud .tag-pill:hover {
            border-color: var(--color-accent);
            color: var(--color-primary);
            background-color: rgba(200, 255, 46, 0.08);
            transform: translateY(-1px);
        }
        .metric-bar-row {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }
        .metric-bar-row .metric-name {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text);
            min-width: 100px;
            flex-shrink: 0;
        }
        .metric-bar-row .metric-bar {
            flex: 1;
            height: 8px;
            background-color: var(--color-border);
            border-radius: 4px;
            overflow: hidden;
        }
        .metric-bar-row .metric-bar .metric-fill {
            height: 100%;
            background-color: var(--color-accent);
            border-radius: 4px;
            transition: width var(--transition-slow);
        }
        .metric-bar-row .metric-pct {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            min-width: 48px;
            text-align: right;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: rgba(200, 255, 46, 0.4);
        }
        .faq-item .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            min-height: 44px;
            transition: color var(--transition-fast);
        }
        .faq-item .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-item .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            position: relative;
            transition: transform var(--transition-base);
        }
        .faq-item .faq-question .faq-icon::before,
        .faq-item .faq-question .faq-icon::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            background-color: var(--color-text-secondary);
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        .faq-item .faq-question .faq-icon::before {
            width: 16px;
            height: 2px;
            transform: translate(-50%, -50%);
        }
        .faq-item .faq-question .faq-icon::after {
            width: 2px;
            height: 16px;
            transform: translate(-50%, -50%);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 220ms ease;
            padding: 0 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }
        .faq-item .faq-answer p {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin: 0;
            line-height: 1.8;
        }
        .cta-banner {
            background-color: var(--color-primary);
            border-radius: var(--radius-card);
            padding: 52px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(200, 255, 46, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-banner .cta-text {
            flex: 1;
            min-width: 260px;
        }
        .cta-banner .cta-text h2 {
            font-size: 26px;
            font-weight: 700;
            color: #FFFFFF;
            margin: 0 0 12px;
            letter-spacing: -0.3px;
            position: relative;
            z-index: 1;
        }
        .cta-banner .cta-text p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            margin: 0;
            line-height: 1.7;
            position: relative;
            z-index: 1;
        }
        .cta-banner .cta-actions {
            display: flex;
            gap: 14px;
            flex-shrink: 0;
            position: relative;
            z-index: 1;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.3px;
            min-height: 44px;
            transition: all var(--transition-base);
            cursor: pointer;
            border: 1px solid transparent;
            line-height: 1.4;
        }
        .btn-primary {
            background-color: var(--color-accent);
            color: var(--color-primary);
        }
        .btn-primary:hover {
            background-color: #b8e928;
            transform: translateY(-2px);
            box-shadow: 0 4px 14px rgba(200, 255, 46, 0.3);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--color-primary);
            border-color: var(--color-border);
        }
        .btn-secondary:hover {
            border-color: var(--color-accent);
            color: var(--color-primary);
            transform: translateY(-2px);
            background-color: rgba(200, 255, 46, 0.05);
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }
        .btn-dark-outline {
            background-color: transparent;
            color: #FFFFFF;
            border-color: rgba(255, 255, 255, 0.35);
        }
        .btn-dark-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-2px);
        }
        .site-footer {
            background-color: var(--color-primary);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 28px;
            margin-top: 48px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }
        .site-footer .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 14px;
        }
        .site-footer .footer-logo .logo-dot {
            width: 10px;
            height: 10px;
            background-color: var(--color-accent);
            border-radius: 2px;
            display: inline-block;
        }
        .site-footer .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            margin: 0;
            max-width: 340px;
        }
        .site-footer .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #FFFFFF;
            margin: 0 0 14px;
            letter-spacing: 0.3px;
        }
        .site-footer .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .site-footer .footer-col ul a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition-fast);
            display: inline-block;
        }
        .site-footer .footer-col ul a:hover {
            color: var(--color-accent);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }
        .site-footer .footer-links-bottom {
            display: flex;
            gap: 8px;
            align-items: center;
        }
        .site-footer .footer-links-bottom a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition-fast);
        }
        .site-footer .footer-links-bottom a:hover {
            color: var(--color-accent);
        }
        .mobile-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background-color: rgba(17, 19, 22, 0.45);
            z-index: 99;
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .mobile-overlay.show {
            opacity: 1;
        }
        @media (max-width: 1024px) {
            .sidebar-col {
                display: none;
            }
            .main-col {
                padding-left: 0;
            }
            .nav-toggle {
                display: flex;
            }
            .header-search {
                max-width: 200px;
            }
            .layout-wrapper {
                flex-direction: column;
            }
            .mobile-overlay.show {
                display: block;
            }
            .site-header {
                padding: 0 16px;
            }
        }
        @media (max-width: 768px) {
            .site-header {
                padding: 0 12px;
                gap: 8px;
            }
            .header-search {
                display: none;
            }
            .header-actions .lang-switch {
                font-size: 12px;
                padding: 6px 10px;
                min-height: 36px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero .page-intro {
                font-size: 15px;
            }
            .section-block {
                padding: 36px 0;
            }
            .section-header {
                flex-direction: column;
                gap: 8px;
                align-items: flex-start;
            }
            .section-header .section-sub {
                text-align: left;
            }
            .grid-2col {
                grid-template-columns: 1fr;
            }
            .rank-item {
                flex-wrap: wrap;
                gap: 12px;
            }
            .rank-stat {
                text-align: left;
                min-width: auto;
                display: flex;
                gap: 16px;
                align-items: baseline;
            }
            .cta-banner {
                padding: 36px 24px;
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-banner .cta-actions {
                flex-direction: column;
                width: 100%;
            }
            .cta-banner .btn {
                width: 100%;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .site-footer .footer-brand {
                grid-column: 1 / -1;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .mobile-overlay.show {
                display: block;
            }
            .breadcrumb {
                font-size: 13px;
            }
        }
        @media (max-width: 520px) {
            .site-header .logo {
                font-size: 17px;
            }
            .rank-number {
                font-size: 22px;
                min-width: 32px;
            }
            .rank-content .rank-title {
                font-size: 15px;
            }
            .rank-stat .stat-value {
                font-size: 22px;
            }
            .page-hero h1 {
                font-size: 24px;
            }
            .cta-banner .cta-text h2 {
                font-size: 22px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .site-footer .footer-brand {
                grid-column: auto;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #111316;
            --color-accent: #C8FF2E;
            --color-bg: #F7F8F5;
            --color-surface: #FFFFFF;
            --color-text: #17191D;
            --color-text-secondary: #5D6268;
            --color-border: #E4E7E0;
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-image: 12px;
            --shadow-card: 0 6px 20px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 12px 28px rgba(0, 0, 0, 0.08);
            --transition-fast: 180ms ease;
            --transition-base: 220ms ease;
            --transition-slow: 260ms ease;
            --font-sans: 'HarmonyOS Sans SC', 'PingFang SC', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --sidebar-width: 270px;
            --header-height: 64px;
            --container-max: 1200px;
            --section-spacing-desktop: 96px;
            --section-spacing-mobile: 56px;
            --gutter: 24px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

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

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            height: var(--header-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            gap: 16px;
        }
        .site-header .logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }
        .site-header .logo .logo-dot {
            width: 10px;
            height: 10px;
            background-color: var(--color-accent);
            border-radius: 2px;
            display: inline-block;
            flex-shrink: 0;
        }
        .header-search {
            flex: 1;
            max-width: 380px;
            display: flex;
            align-items: center;
            background-color: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            padding: 8px 14px;
            gap: 8px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .header-search:focus-within {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(200, 255, 46, 0.15);
        }
        .header-search input {
            flex: 1;
            background: none;
            border: none;
            outline: none;
            color: var(--color-text);
            font-size: 14px;
            line-height: 1.5;
        }
        .header-search input::placeholder {
            color: var(--color-text-secondary);
            opacity: 0.7;
        }
        .header-search .search-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            color: var(--color-text-secondary);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 6px;
            cursor: pointer;
            min-width: 44px;
            min-height: 44px;
            justify-content: center;
            align-items: center;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background-color: var(--color-text);
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        /* Layout wrapper */
        .layout-wrapper {
            display: flex;
            max-width: var(--container-max);
            margin: 0 auto;
            position: relative;
            flex: 1;
            width: 100%;
            padding: 0 var(--gutter);
            gap: 32px;
        }
        .sidebar {
            width: var(--sidebar-width);
            flex-shrink: 0;
            position: sticky;
            top: calc(var(--header-height) + 24px);
            align-self: flex-start;
            max-height: calc(100vh - var(--header-height) - 48px);
            overflow-y: auto;
            padding-top: 28px;
            padding-bottom: 24px;
        }
        .sidebar-title {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.8px;
            margin-bottom: 14px;
            padding-left: 4px;
        }
        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .sidebar-nav a {
            font-size: 14px;
            color: var(--color-text-secondary);
            padding: 8px 12px;
            border-radius: 6px;
            transition: all var(--transition-fast);
            border-left: 2px solid transparent;
            display: block;
            line-height: 1.4;
        }
        .sidebar-nav a:hover {
            background-color: rgba(200, 255, 46, 0.08);
            color: var(--color-text);
            border-left-color: var(--color-accent);
        }
        .sidebar-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
            border-left-color: var(--color-accent);
            background-color: rgba(200, 255, 46, 0.1);
        }
        .sidebar-section-tag {
            font-size: 11px;
            font-weight: 700;
            color: var(--color-text-secondary);
            letter-spacing: 1.2px;
            text-transform: uppercase;
            margin: 18px 0 8px;
            padding-left: 4px;
            opacity: 0.7;
        }
        .main-content {
            flex: 1;
            min-width: 0;
            padding-bottom: 80px;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-secondary);
            padding: 28px 0 0;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .breadcrumb .sep {
            color: var(--color-border);
            font-size: 12px;
            user-select: none;
        }
        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 500;
        }

        /* Category H1 */
        .category-hero {
            padding: 36px 0 28px;
            border-bottom: 1px solid var(--color-border);
            margin-bottom: 40px;
        }
        .category-hero h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-primary);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .category-hero .cat-tag {
            display: inline-block;
            background-color: var(--color-accent);
            color: var(--color-primary);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }
        .category-hero .cat-desc {
            font-size: 16px;
            color: var(--color-text-secondary);
            max-width: 820px;
            line-height: 1.8;
        }

        /* Section */
        .section {
            margin-bottom: 56px;
        }
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 24px;
        }
        .section-head h2 {
            font-size: 24px;
            font-weight: 600;
            color: var(--color-primary);
            line-height: 1.4;
            letter-spacing: -0.3px;
        }
        .section-head .view-more {
            font-size: 14px;
            color: var(--color-text-secondary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .section-head .view-more:hover {
            color: var(--color-primary);
        }
        .section-head .view-more .arrow {
            font-size: 16px;
            line-height: 1;
            transition: transform var(--transition-fast);
        }
        .section-head .view-more:hover .arrow {
            transform: translateX(3px);
        }

        /* Match List - Magazine style */
        .match-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .match-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px 28px;
            display: flex;
            gap: 24px;
            align-items: center;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
        }
        .match-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-accent);
            transform: translateY(-2px);
        }
        .match-date {
            flex-shrink: 0;
            width: 72px;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }
        .match-date .day {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
            letter-spacing: -1px;
        }
        .match-date .month {
            font-size: 12px;
            color: var(--color-text-secondary);
            font-weight: 500;
            letter-spacing: 1px;
        }
        .match-info {
            flex: 1;
            min-width: 0;
        }
        .match-info h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .match-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 8px;
        }
        .match-meta span {
            font-size: 13px;
            color: var(--color-text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .match-meta .dot {
            width: 4px;
            height: 4px;
            background-color: var(--color-border);
            border-radius: 50%;
            flex-shrink: 0;
        }
        .match-teams {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }
        .match-teams .team {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-primary);
        }
        .match-teams .vs {
            font-size: 13px;
            color: var(--color-text-secondary);
            background-color: var(--color-bg);
            padding: 4px 12px;
            border-radius: 20px;
            font-weight: 500;
        }
        .match-summary {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .match-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .read-more-link {
            font-size: 14px;
            color: var(--color-primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            border-bottom: 2px solid var(--color-accent);
            padding-bottom: 2px;
            transition: all var(--transition-fast);
        }
        .read-more-link:hover {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary);
        }
        .match-tag-status {
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 6px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .tag-upcoming {
            background-color: rgba(200, 255, 46, 0.15);
            color: #4a6b00;
        }
        .tag-live {
            background-color: #FFE5E0;
            color: #D43A2B;
        }
        .tag-finished {
            background-color: var(--color-bg);
            color: var(--color-text-secondary);
        }

        /* Featured section */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .featured-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
            cursor: pointer;
        }
        .featured-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: var(--color-accent);
        }
        .featured-card img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            border-radius: 0;
        }
        .featured-card .featured-body {
            padding: 20px;
        }
        .featured-card .featured-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .featured-card .featured-body p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .featured-card .featured-body .read-more-link {
            font-size: 13px;
        }

        /* Data ranking section */
        .data-panel {
            background: var(--color-primary);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            color: #fff;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
        }
        .data-panel .data-block h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-accent);
            margin-bottom: 16px;
        }
        .data-panel .data-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            gap: 12px;
        }
        .data-panel .data-row:last-child {
            border-bottom: none;
        }
        .data-panel .rank-num {
            font-size: 14px;
            font-weight: 700;
            color: var(--color-accent);
            width: 28px;
            flex-shrink: 0;
        }
        .data-panel .rank-name {
            flex: 1;
            font-size: 15px;
            font-weight: 500;
        }
        .data-panel .rank-value {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-accent);
            white-space: nowrap;
        }
        .data-panel .rank-bar {
            flex: 1;
            max-width: 160px;
            height: 6px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 3px;
            overflow: hidden;
        }
        .data-panel .rank-bar .bar-fill {
            height: 100%;
            background: var(--color-accent);
            border-radius: 3px;
            transition: width var(--transition-slow);
        }

        /* Tags cloud */
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tags-cloud a {
            font-size: 13px;
            color: var(--color-text-secondary);
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            padding: 6px 16px;
            border-radius: 20px;
            transition: all var(--transition-fast);
        }
        .tags-cloud a:hover {
            color: var(--color-primary);
            border-color: var(--color-accent);
            background-color: rgba(200, 255, 46, 0.08);
        }

        /* CTA section */
        .cta-box {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .cta-box .cta-text h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 8px;
        }
        .cta-box .cta-text p {
            font-size: 14px;
            color: var(--color-text-secondary);
            max-width: 560px;
            line-height: 1.7;
        }
        .btn-primary {
            background-color: var(--color-accent);
            color: var(--color-primary);
            font-size: 15px;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-primary:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: border-color var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-accent);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            min-height: 44px;
            cursor: pointer;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--color-text);
        }
        .faq-question .faq-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            color: var(--color-text-secondary);
            transition: transform var(--transition-base);
            font-size: 20px;
            line-height: 1;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base);
            padding: 0 24px;
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.75;
        }
        .faq-item.open .faq-answer {
            max-height: 280px;
            padding-bottom: 20px;
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-primary);
            color: #fff;
            padding: 56px 0 28px;
            margin-top: auto;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .site-footer .footer-brand .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .site-footer .footer-brand .footer-logo .logo-dot {
            width: 10px;
            height: 10px;
            background-color: var(--color-accent);
            border-radius: 2px;
            display: inline-block;
            flex-shrink: 0;
        }
        .site-footer .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            max-width: 420px;
            line-height: 1.7;
        }
        .site-footer .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .site-footer .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .site-footer .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .site-footer .footer-col ul li a:hover {
            color: var(--color-accent);
        }
        .site-footer .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            flex-wrap: wrap;
        }
        .site-footer .footer-bottom div {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }
        .site-footer .footer-links-bottom {
            display: flex;
            gap: 8px;
            align-items: center;
        }
        .site-footer .footer-links-bottom a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition-fast);
        }
        .site-footer .footer-links-bottom a:hover {
            color: var(--color-accent);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .sidebar {
                display: none;
            }
            .layout-wrapper {
                padding: 0 20px;
                display: block;
            }
            .nav-toggle {
                display: flex;
            }
            .header-search {
                display: none;
            }
            .site-header {
                padding: 0 14px;
            }
            .featured-grid {
                grid-template-columns: 1fr 1fr;
            }
            .data-panel {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .category-hero h1 {
                font-size: 30px;
            }
        }
        @media (max-width: 768px) {
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .match-card {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 20px;
            }
            .match-date {
                flex-direction: row;
                gap: 8px;
                width: auto;
                align-items: baseline;
            }
            .match-date .day {
                font-size: 24px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cta-box {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
            }
            .data-panel {
                padding: 24px 20px;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .section-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .section {
                margin-bottom: 40px;
            }
        }
        @media (max-width: 520px) {
            .site-header .logo {
                font-size: 17px;
            }
            .match-teams {
                gap: 8px;
            }
            .match-teams .team {
                font-size: 13px;
            }
            .match-summary {
                font-size: 13px;
            }
            .faq-question {
                font-size: 15px;
                padding: 14px 16px;
            }
            .faq-answer {
                font-size: 14px;
                padding: 0 16px;
            }
            .faq-item.open .faq-answer {
                padding-bottom: 16px;
            }
            .breadcrumb {
                font-size: 12px;
                padding-top: 20px;
            }
            .category-hero {
                padding: 24px 0 20px;
                margin-bottom: 28px;
            }
            .category-hero h1 {
                font-size: 24px;
            }
            .category-hero .cat-desc {
                font-size: 14px;
            }
        }

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

/* roulang page: category2 */
:root {
            --color-primary: #111316;
            --color-accent: #C8FF2E;
            --color-bg: #F7F8F5;
            --color-surface: #FFFFFF;
            --color-text: #17191D;
            --color-text-secondary: #5D6268;
            --color-border: #E4E7E0;
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-image: 12px;
            --shadow-card: 0 6px 20px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 12px 28px rgba(0, 0, 0, 0.08);
            --transition-fast: 180ms ease;
            --transition-base: 220ms ease;
            --transition-slow: 260ms ease;
            --font-sans: 'HarmonyOS Sans SC', 'PingFang SC', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --sidebar-width: 270px;
            --header-height: 64px;
            --container-max: 1200px;
            --section-spacing-desktop: 96px;
            --section-spacing-mobile: 56px;
            --gutter: 24px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast), border-color var(--transition-fast);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-image);
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--gutter);
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            height: var(--header-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            gap: 16px;
        }
        .site-header .logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }
        .site-header .logo .logo-dot {
            width: 10px;
            height: 10px;
            background-color: var(--color-accent);
            border-radius: 2px;
            display: inline-block;
            flex-shrink: 0;
        }
        .header-search {
            flex: 1;
            max-width: 380px;
            display: flex;
            align-items: center;
            background-color: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            padding: 8px 14px;
            gap: 8px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .header-search:focus-within {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(200, 255, 46, 0.15);
        }
        .header-search input {
            flex: 1;
            background: none;
            border: none;
            outline: none;
            color: var(--color-text);
            font-size: 14px;
            line-height: 1.5;
            min-width: 0;
        }
        .header-search input::placeholder {
            color: var(--color-text-secondary);
            opacity: 0.7;
        }
        .header-search .search-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            color: var(--color-text-secondary);
            display: inline-block;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 6px;
            cursor: pointer;
            min-width: 44px;
            min-height: 44px;
            justify-content: center;
            align-items: center;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background-color: var(--color-text);
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        .layout-wrapper {
            display: flex;
            max-width: var(--container-max);
            margin: 0 auto;
            position: relative;
            gap: 0;
        }
        .sidebar-container {
            width: var(--sidebar-width);
            flex-shrink: 0;
            border-right: 1px solid var(--color-border);
            background-color: var(--color-surface);
            min-height: calc(100vh - var(--header-height));
            position: sticky;
            top: var(--header-height);
            height: calc(100vh - var(--header-height));
            overflow-y: auto;
            padding: 24px 16px 32px;
            z-index: 90;
        }
        .sidebar-title {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.8px;
            margin-bottom: 14px;
            padding-left: 4px;
        }
        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .sidebar-nav a {
            font-size: 14px;
            color: var(--color-text-secondary);
            padding: 9px 12px;
            border-radius: 6px;
            transition: all var(--transition-fast);
            border-left: 2px solid transparent;
            display: block;
            line-height: 1.4;
            min-height: 44px;
            display: flex;
            align-items: center;
        }
        .sidebar-nav a:hover {
            background-color: rgba(200, 255, 46, 0.08);
            color: var(--color-text);
            border-left-color: var(--color-accent);
        }
        .sidebar-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
            border-left-color: var(--color-accent);
            background-color: rgba(200, 255, 46, 0.12);
        }
        .sidebar-section-tag {
            font-size: 11px;
            font-weight: 600;
            color: var(--color-text-secondary);
            letter-spacing: 0.6px;
            text-transform: uppercase;
            margin: 20px 0 10px 4px;
            opacity: 0.7;
        }
        .main-content {
            flex: 1;
            min-width: 0;
            padding: 40px var(--gutter) 0;
            background-color: var(--color-bg);
        }
        .breadcrumb-custom {
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .breadcrumb-custom a {
            color: var(--color-text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb-custom a:hover {
            color: var(--color-primary);
        }
        .breadcrumb-custom .sep {
            opacity: 0.5;
        }
        .page-section {
            margin-bottom: 48px;
        }
        .section-title {
            font-size: 22px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--color-text-secondary);
            margin-bottom: 24px;
            line-height: 1.7;
        }
        .page-h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 12px;
            line-height: 1.35;
        }
        .intro-text {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.9;
            max-width: 720px;
        }
        .badge-tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            background-color: rgba(200, 255, 46, 0.15);
            color: var(--color-primary);
            border: 1px solid rgba(200, 255, 46, 0.35);
            white-space: nowrap;
        }
        .badge-tag.outline {
            background-color: transparent;
            border: 1px solid var(--color-border);
            color: var(--color-text-secondary);
        }
        .card-team {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card-team:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-accent);
        }
        .card-team .card-img-wrap {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            border-radius: 0;
            position: relative;
        }
        .card-team .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-slow);
        }
        .card-team:hover .card-img-wrap img {
            transform: scale(1.03);
        }
        .card-team .card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-team .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 10px;
        }
        .card-team .card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card-team .card-text {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }
        .card-team .card-meta {
            font-size: 12px;
            color: var(--color-text-secondary);
            opacity: 0.8;
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: auto;
        }
        .btn-read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-primary);
            border: 1px solid var(--color-border);
            background-color: var(--color-surface);
            border-radius: var(--radius-btn);
            padding: 8px 16px;
            transition: all var(--transition-fast);
            white-space: nowrap;
            min-height: 36px;
            justify-content: center;
        }
        .btn-read-more:hover {
            border-color: var(--color-accent);
            background-color: rgba(200, 255, 46, 0.1);
            color: var(--color-primary);
            transform: translateY(-1px);
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: var(--color-accent);
            color: var(--color-primary);
            font-weight: 600;
            font-size: 15px;
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            transition: all var(--transition-base);
            min-height: 48px;
            border: none;
        }
        .btn-accent:hover {
            background-color: #b8ec20;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(200, 255, 46, 0.25);
            color: var(--color-primary);
        }
        .btn-outline-dark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: transparent;
            color: var(--color-primary);
            font-weight: 500;
            font-size: 15px;
            border-radius: var(--radius-btn);
            padding: 12px 24px;
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
            min-height: 48px;
        }
        .btn-outline-dark:hover {
            border-color: var(--color-primary);
            background-color: var(--color-surface);
            transform: translateY(-2px);
            color: var(--color-primary);
        }
        .btn-arrow-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
            border-bottom: 1px solid var(--color-accent);
            padding-bottom: 2px;
            transition: all var(--transition-fast);
        }
        .btn-arrow-link:hover {
            color: var(--color-text);
            border-bottom-color: var(--color-text);
            gap: 10px;
        }
        .data-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px;
            text-align: center;
            height: 100%;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
        }
        .data-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-accent);
        }
        .data-card .data-number {
            font-size: 40px;
            font-weight: 600;
            color: var(--color-primary);
            line-height: 1.2;
            letter-spacing: -0.5px;
        }
        .data-card .data-label {
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-top: 6px;
        }
        .data-card .data-trend {
            font-size: 12px;
            color: var(--color-accent);
            font-weight: 600;
            margin-top: 4px;
        }
        .rank-list {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
        }
        .rank-item {
            display: flex;
            align-items: center;
            padding: 14px 20px;
            border-bottom: 1px solid var(--color-border);
            gap: 16px;
            transition: background-color var(--transition-fast);
        }
        .rank-item:last-child {
            border-bottom: none;
        }
        .rank-item:hover {
            background-color: rgba(200, 255, 46, 0.05);
        }
        .rank-number {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background-color: var(--color-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-secondary);
            flex-shrink: 0;
        }
        .rank-number.top1 {
            background-color: var(--color-accent);
            color: var(--color-primary);
        }
        .rank-number.top2 {
            background-color: #e8e8e8;
            color: var(--color-primary);
        }
        .rank-number.top3 {
            background-color: #f0e0d0;
            color: var(--color-primary);
        }
        .rank-team-name {
            font-weight: 600;
            font-size: 15px;
            color: var(--color-primary);
            flex: 1;
            min-width: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .rank-value {
            font-size: 20px;
            font-weight: 600;
            color: var(--color-primary);
            white-space: nowrap;
        }
        .rank-change {
            font-size: 13px;
            font-weight: 500;
            white-space: nowrap;
        }
        .rank-change.up {
            color: #10b981;
        }
        .rank-change.down {
            color: #ef4444;
        }
        .rank-change.stable {
            color: var(--color-text-secondary);
        }
        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            background-color: var(--color-surface);
            overflow: hidden;
            margin-bottom: 12px;
            transition: border-color var(--transition-fast);
        }
        .faq-item.active {
            border-color: var(--color-accent);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            text-align: left;
            background-color: transparent;
            transition: background-color var(--transition-fast);
            min-height: 54px;
            border: none;
            cursor: pointer;
        }
        .faq-question:hover {
            background-color: rgba(200, 255, 46, 0.06);
        }
        .faq-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            position: relative;
            transition: transform 180ms ease;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background-color: var(--color-text);
            transition: all 180ms ease;
        }
        .faq-icon::before {
            width: 14px;
            height: 2px;
        }
        .faq-icon::after {
            width: 2px;
            height: 14px;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 220ms ease, padding 220ms ease;
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.8;
            padding: 0 20px;
        }
        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0 20px 18px;
        }
        .cta-band {
            background-color: var(--color-primary);
            border-radius: var(--radius-card);
            padding: 40px 32px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .cta-band h2 {
            font-size: 24px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 6px;
        }
        .cta-band p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 0;
        }
        .cta-band .btn-accent {
            background-color: var(--color-accent);
            color: var(--color-primary);
        }
        .cta-band .btn-accent:hover {
            background-color: #b8ec20;
        }
        .site-footer {
            background-color: var(--color-primary);
            color: rgba(255, 255, 255, 0.75);
            margin-top: 80px;
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .footer-logo .logo-dot {
            width: 10px;
            height: 10px;
            background-color: var(--color-accent);
            border-radius: 2px;
            display: inline-block;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 0;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition-fast);
            min-height: 36px;
            display: flex;
            align-items: center;
        }
        .footer-col ul li a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-links-bottom {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .footer-links-bottom a {
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition-fast);
            min-height: 36px;
            display: flex;
            align-items: center;
        }
        .footer-links-bottom a:hover {
            color: var(--color-accent);
        }
        .sidebar-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.35);
            z-index: 95;
        }
        .sidebar-overlay.active {
            display: block;
        }
        @media (max-width: 1024px) {
            .sidebar-container {
                position: fixed;
                left: 0;
                top: var(--header-height);
                height: calc(100vh - var(--header-height));
                transform: translateX(-100%);
                transition: transform var(--transition-base);
                z-index: 97;
                box-shadow: 4px 0 20px rgba(0, 0, 0, 0.1);
                width: 280px;
            }
            .sidebar-container.open {
                transform: translateX(0);
            }
            .nav-toggle {
                display: flex;
            }
            .main-content {
                padding: 32px 16px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-spacing-desktop: 56px;
                --gutter: 16px;
            }
            .header-search {
                max-width: 160px;
            }
            .page-h1 {
                font-size: 26px;
            }
            .section-title {
                font-size: 20px;
            }
            .cta-band {
                padding: 28px 20px;
                text-align: center;
                justify-content: center;
            }
            .cta-band h2 {
                font-size: 20px;
            }
            .rank-item {
                padding: 10px 14px;
                gap: 10px;
                flex-wrap: wrap;
            }
            .rank-value {
                font-size: 16px;
            }
            .card-team .card-body {
                padding: 14px 16px 16px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .header-search {
                display: none;
            }
            .header-actions {
                gap: 6px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .page-h1 {
                font-size: 22px;
            }
            .data-card .data-number {
                font-size: 30px;
            }
            .btn-accent,
            .btn-outline-dark {
                font-size: 14px;
                padding: 10px 18px;
                min-height: 44px;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            * {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }
        .focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

/* roulang page: category5 */
:root {
            --color-primary: #111316;
            --color-accent: #C8FF2E;
            --color-bg: #F7F8F5;
            --color-surface: #FFFFFF;
            --color-text: #17191D;
            --color-text-secondary: #5D6268;
            --color-border: #E4E7E0;
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-image: 12px;
            --shadow-card: 0 6px 20px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 12px 28px rgba(0, 0, 0, 0.08);
            --transition-fast: 180ms ease;
            --transition-base: 220ms ease;
            --transition-slow: 260ms ease;
            --font-sans: 'HarmonyOS Sans SC', 'PingFang SC', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --sidebar-width: 270px;
            --header-height: 64px;
            --container-max: 1200px;
            --section-spacing-desktop: 96px;
            --section-spacing-mobile: 56px;
            --gutter: 24px;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            margin: 0;
        }

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

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

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

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

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            height: var(--header-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            gap: 16px;
        }

        .site-header .logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }

        .site-header .logo .logo-dot {
            width: 10px;
            height: 10px;
            background-color: var(--color-accent);
            border-radius: 2px;
            display: inline-block;
            flex-shrink: 0;
        }

        .header-search {
            flex: 1;
            max-width: 380px;
            display: flex;
            align-items: center;
            background-color: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            padding: 8px 14px;
            gap: 8px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .header-search:focus-within {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(200, 255, 46, 0.15);
        }

        .header-search input {
            flex: 1;
            background: none;
            border: none;
            outline: none;
            color: var(--color-text);
            font-size: 14px;
            line-height: 1.5;
        }

        .header-search input::placeholder {
            color: var(--color-text-secondary);
            opacity: 0.7;
        }

        .header-search .search-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            color: var(--color-text-secondary);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 6px;
            cursor: pointer;
            min-width: 44px;
            min-height: 44px;
            justify-content: center;
            align-items: center;
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background-color: var(--color-text);
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .layout-wrapper {
            display: flex;
            max-width: var(--container-max);
            margin: 0 auto;
            position: relative;
            gap: 24px;
            padding: 24px var(--gutter) 0;
        }

        .sidebar {
            width: var(--sidebar-width);
            flex-shrink: 0;
            position: sticky;
            top: calc(var(--header-height) + 24px);
            align-self: flex-start;
            max-height: calc(100vh - var(--header-height) - 48px);
            overflow-y: auto;
            padding-right: 8px;
            border-right: 1px solid var(--color-border);
        }

        .sidebar-title {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.8px;
            margin-bottom: 14px;
            padding-left: 4px;
        }

        .sidebar-section-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--color-text-secondary);
            letter-spacing: 0.6px;
            text-transform: uppercase;
            margin: 20px 4px 10px;
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .sidebar-nav a {
            font-size: 14px;
            color: var(--color-text-secondary);
            padding: 8px 12px;
            border-radius: 6px;
            transition: all var(--transition-fast);
            border-left: 2px solid transparent;
            display: block;
            line-height: 1.4;
        }

        .sidebar-nav a:hover {
            background-color: rgba(200, 255, 46, 0.08);
            color: var(--color-text);
            border-left-color: var(--color-accent);
        }

        .sidebar-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
            border-left-color: var(--color-accent);
            background-color: rgba(200, 255, 46, 0.06);
        }

        .main-content {
            flex: 1;
            min-width: 0;
            padding-bottom: var(--section-spacing-desktop);
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-bottom: 16px;
        }

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

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

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

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

        .page-hero {
            margin-bottom: 32px;
            padding: 36px 40px;
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 180px;
            height: 180px;
            background: radial-gradient(circle at top right, rgba(200, 255, 46, 0.18), transparent 70%);
            pointer-events: none;
        }

        .page-hero .hero-category-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
            background-color: var(--color-accent);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .page-hero h1 {
            font-size: 34px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .page-hero .hero-description {
            font-size: 16px;
            line-height: 1.85;
            color: var(--color-text-secondary);
            max-width: 720px;
        }

        .section-block {
            margin-bottom: 48px;
        }

        .section-block:last-child {
            margin-bottom: 0;
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .section-header h2 {
            font-size: 24px;
            font-weight: 600;
            color: var(--color-primary);
            line-height: 1.3;
            letter-spacing: -0.2px;
        }

        .section-header .section-subtitle {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin-top: 6px;
        }

        .section-header .view-more {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-secondary);
            border-bottom: 1px solid var(--color-border);
            padding-bottom: 2px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .section-header .view-more:hover {
            color: var(--color-primary);
            border-bottom-color: var(--color-accent);
        }

        .player-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

        .player-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(200, 255, 46, 0.4);
        }

        .player-card .card-image {
            aspect-ratio: 16/10;
            overflow: hidden;
            position: relative;
        }

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

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

        .player-card .card-image .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-primary);
            background-color: var(--color-accent);
            padding: 4px 10px;
            border-radius: 4px;
            letter-spacing: 0.3px;
            z-index: 1;
        }

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

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

        .player-card .card-meta .meta-date {
            font-family: 'SF Mono', 'Roboto Mono', monospace;
            letter-spacing: 0.3px;
        }

        .player-card .card-meta .meta-divider {
            color: var(--color-border);
        }

        .player-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-primary);
            line-height: 1.45;
            margin-bottom: 10px;
            letter-spacing: -0.2px;
        }

        .player-card .card-excerpt {
            font-size: 14px;
            line-height: 1.75;
            color: var(--color-text-secondary);
            margin-bottom: 16px;
            flex: 1;
        }

        .player-card .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition-fast);
            border-bottom: 1px solid transparent;
            align-self: flex-start;
        }

        .player-card .card-link:hover {
            color: var(--color-accent);
            border-bottom-color: var(--color-accent);
        }

        .featured-section {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 32px 36px;
        }

        .featured-item {
            display: flex;
            gap: 24px;
            align-items: center;
            padding: 16px 0;
            border-bottom: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }

        .featured-item:first-child {
            padding-top: 0;
        }

        .featured-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .featured-item:hover .featured-title {
            color: var(--color-accent);
        }

        .featured-item .featured-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-border);
            width: 48px;
            flex-shrink: 0;
            font-family: 'SF Mono', 'Roboto Mono', monospace;
            line-height: 1;
        }

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

        .featured-item .featured-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            line-height: 1.45;
            margin-bottom: 4px;
            transition: color var(--transition-fast);
        }

        .featured-item .featured-meta {
            font-size: 13px;
            color: var(--color-text-secondary);
        }

        .featured-item .featured-badge {
            font-size: 12px;
            font-weight: 600;
            color: var(--color-text);
            background-color: var(--color-bg);
            padding: 4px 10px;
            border-radius: 4px;
            flex-shrink: 0;
        }

        .rank-section {
            background-color: var(--color-primary);
            border-radius: var(--radius-card);
            padding: 36px 40px;
            color: #fff;
        }

        .rank-section .rank-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 28px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .rank-section .rank-header h2 {
            font-size: 24px;
            font-weight: 600;
            color: #fff;
            letter-spacing: -0.2px;
        }

        .rank-section .rank-header .rank-note {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
        }

        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background-color: rgba(255, 255, 255, 0.06);
            border-radius: 10px;
            padding: 14px 18px;
            transition: all var(--transition-fast);
        }

        .rank-item:hover {
            background-color: rgba(255, 255, 255, 0.1);
        }

        .rank-item .rank-position {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
            font-family: 'SF Mono', 'Roboto Mono', monospace;
        }

        .rank-item:nth-child(1) .rank-position {
            background-color: var(--color-accent);
            color: var(--color-primary);
        }

        .rank-item:nth-child(2) .rank-position {
            background-color: rgba(200, 255, 46, 0.7);
            color: var(--color-primary);
        }

        .rank-item:nth-child(3) .rank-position {
            background-color: rgba(200, 255, 46, 0.4);
            color: #fff;
        }

        .rank-item .rank-position {
            background-color: rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.7);
        }

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

        .rank-item .rank-name {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 2px;
        }

        .rank-item .rank-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
        }

        .rank-item .rank-score {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-accent);
            flex-shrink: 0;
            font-family: 'SF Mono', 'Roboto Mono', monospace;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-cloud .tag {
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text-secondary);
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: 20px;
            padding: 6px 16px;
            transition: all var(--transition-fast);
            cursor: default;
        }

        .tag-cloud .tag:hover {
            color: var(--color-primary);
            border-color: var(--color-accent);
            background-color: rgba(200, 255, 46, 0.06);
        }

        .faq-section {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 32px 36px;
        }

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

        .faq-item:last-child {
            border-bottom: none;
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 0;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: none;
            border: none;
            cursor: pointer;
            line-height: 1.5;
        }

        .faq-question .faq-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            position: relative;
            transition: transform var(--transition-base);
        }

        .faq-question .faq-icon::before,
        .faq-question .faq-icon::after {
            content: '';
            position: absolute;
            background-color: var(--color-text);
            border-radius: 1px;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            transition: all var(--transition-base);
        }

        .faq-question .faq-icon::before {
            width: 14px;
            height: 2px;
        }

        .faq-question .faq-icon::after {
            width: 2px;
            height: 14px;
        }

        .faq-item.active .faq-question .faq-icon {
            transform: rotate(180deg);
        }

        .faq-item.active .faq-question .faq-icon::after {
            opacity: 0;
        }

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

        .faq-item.active .faq-answer {
            max-height: 240px;
        }

        .faq-answer p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--color-text-secondary);
            padding-bottom: 18px;
        }

        .cta-section {
            background-color: var(--color-primary);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(200, 255, 46, 0.2), transparent 70%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.2px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 28px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
            position: relative;
            z-index: 1;
        }

        .cta-section .cta-button {
            display: inline-block;
            background-color: var(--color-accent);
            color: var(--color-primary);
            font-weight: 600;
            font-size: 15px;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            transition: all var(--transition-fast);
            position: relative;
            z-index: 1;
        }

        .cta-section .cta-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(200, 255, 46, 0.25);
        }

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

        .site-footer {
            background-color: var(--color-primary);
            color: rgba(255, 255, 255, 0.7);
            margin-top: 24px;
        }

        .site-footer .container {
            padding-top: 48px;
            padding-bottom: 28px;
        }

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

        .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-logo .logo-dot {
            width: 10px;
            height: 10px;
            background-color: var(--color-accent);
            border-radius: 2px;
            display: inline-block;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 300px;
        }

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

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

        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

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

        .footer-links-bottom a {
            color: rgba(255, 255, 255, 0.45);
            transition: color var(--transition-fast);
        }

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

        @media (max-width: 1024px) {
            .sidebar {
                display: none;
            }
            .player-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-search {
                max-width: 200px;
            }
            .nav-toggle {
                display: flex;
            }
            .layout-wrapper {
                padding: 16px 16px 0;
                gap: 0;
            }
            .page-hero {
                padding: 24px 20px;
            }
            .page-hero h1 {
                font-size: 24px;
            }
            .hero-description {
                font-size: 14px;
            }
            .player-grid {
                grid-template-columns: 1fr;
            }
            .featured-section {
                padding: 24px 20px;
            }
            .rank-section {
                padding: 24px 20px;
            }
            .faq-section {
                padding: 24px 20px;
            }
            .cta-section {
                padding: 32px 20px;
            }
            .cta-section h2 {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-header {
                padding: 0 14px;
                gap: 10px;
            }
            .header-search {
                max-width: 140px;
            }
        }

        @media (max-width: 520px) {
            .header-search {
                display: none;
            }
            .site-header .logo {
                font-size: 18px;
            }
            .header-actions {
                gap: 6px;
            }
            .page-hero h1 {
                font-size: 22px;
            }
            .section-header h2 {
                font-size: 20px;
            }
            .featured-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                text-align: left;
            }
            .rank-item .rank-score {
                font-size: 16px;
            }
        }

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

/* roulang page: category4 */
:root {
            --color-primary: #111316;
            --color-accent: #C8FF2E;
            --color-bg: #F7F8F5;
            --color-surface: #FFFFFF;
            --color-text: #17191D;
            --color-text-secondary: #5D6268;
            --color-border: #E4E7E0;
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-image: 12px;
            --shadow-card: 0 6px 20px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 12px 28px rgba(0, 0, 0, 0.08);
            --transition-fast: 180ms ease;
            --transition-base: 220ms ease;
            --transition-slow: 260ms ease;
            --font-sans: 'HarmonyOS Sans SC', 'PingFang SC', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --sidebar-width: 270px;
            --header-height: 64px;
            --container-max: 1200px;
            --section-spacing-desktop: 96px;
            --section-spacing-mobile: 56px;
            --gutter: 24px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

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

        .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 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            height: var(--header-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            gap: 16px;
        }

        .site-header .logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
            min-height: 44px;
            padding: 8px 0;
        }

        .site-header .logo .logo-dot {
            width: 10px;
            height: 10px;
            background-color: var(--color-accent);
            border-radius: 2px;
            display: inline-block;
            flex-shrink: 0;
        }

        .header-search {
            flex: 1;
            max-width: 380px;
            display: flex;
            align-items: center;
            background-color: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            padding: 8px 14px;
            gap: 8px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            min-height: 44px;
        }

        .header-search:focus-within {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(200, 255, 46, 0.15);
        }

        .header-search input {
            flex: 1;
            background: none;
            border: none;
            outline: none;
            color: var(--color-text);
            font-size: 14px;
            line-height: 1.5;
            min-width: 0;
        }

        .header-search input::placeholder {
            color: var(--color-text-secondary);
            opacity: 0.7;
        }

        .header-search .search-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            color: var(--color-text-secondary);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .header-lang {
            font-size: 13px;
            color: var(--color-text-secondary);
            padding: 6px 10px;
            border-radius: 6px;
            min-height: 44px;
            display: flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition-fast), background-color var(--transition-fast);
        }

        .header-lang:hover {
            color: var(--color-text);
            background-color: rgba(200, 255, 46, 0.08);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 6px;
            cursor: pointer;
            min-width: 44px;
            min-height: 44px;
            justify-content: center;
            align-items: center;
            border: 1px solid var(--color-border);
            background-color: var(--color-surface);
            transition: border-color var(--transition-fast);
        }

        .nav-toggle:hover {
            border-color: var(--color-accent);
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background-color: var(--color-text);
            border-radius: 2px;
            transition: all var(--transition-base);
            flex-shrink: 0;
        }

        .nav-toggle[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Layout */
        .layout-wrapper {
            display: flex;
            max-width: var(--container-max);
            margin: 0 auto;
            position: relative;
            flex: 1;
            width: 100%;
        }

        /* Sidebar */
        .sidebar {
            width: var(--sidebar-width);
            flex-shrink: 0;
            padding: 32px 16px 40px 24px;
            position: sticky;
            top: var(--header-height);
            height: calc(100vh - var(--header-height));
            overflow-y: auto;
            border-right: 1px solid var(--color-border);
            background-color: var(--color-surface);
        }

        .sidebar::-webkit-scrollbar {
            width: 4px;
        }

        .sidebar::-webkit-scrollbar-thumb {
            background: var(--color-border);
            border-radius: 4px;
        }

        .sidebar-section-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--color-text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.8px;
            margin: 20px 0 8px 4px;
        }

        .sidebar-section-tag:first-child {
            margin-top: 0;
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .sidebar-nav a {
            font-size: 14px;
            color: var(--color-text-secondary);
            padding: 8px 12px;
            border-radius: 6px;
            transition: all var(--transition-fast);
            border-left: 2px solid transparent;
            display: block;
            line-height: 1.4;
            min-height: 36px;
        }

        .sidebar-nav a:hover {
            background-color: rgba(200, 255, 46, 0.08);
            color: var(--color-text);
            border-left-color: var(--color-accent);
        }

        .sidebar-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
            border-left-color: var(--color-accent);
            background-color: rgba(200, 255, 46, 0.05);
        }

        /* Main content */
        .main-content {
            flex: 1;
            min-width: 0;
            padding: 0;
        }

        /* Breadcrumb */
        .breadcrumb-wrapper {
            padding: 24px 32px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.5;
            padding: 8px 0;
        }

        .breadcrumb .breadcrumb-sep {
            color: var(--color-text-secondary);
            opacity: 0.5;
            user-select: none;
        }

        .breadcrumb a {
            color: var(--color-text-secondary);
            transition: color var(--transition-fast);
            padding: 4px 0;
        }

        .breadcrumb a:hover {
            color: var(--color-text);
            text-decoration: underline;
            text-decoration-color: var(--color-accent);
            text-underline-offset: 3px;
        }

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

        /* Category Hero */
        .category-hero {
            padding: 32px 32px 24px;
            background-color: var(--color-primary);
            margin: 0;
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle at center, rgba(200, 255, 46, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-hero .hero-inner {
            position: relative;
            z-index: 1;
            max-width: 800px;
        }

        .category-hero h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            color: #FFFFFF;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .category-hero h1 .accent-highlight {
            color: var(--color-accent);
        }

        .category-hero .hero-desc {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.75);
            max-width: 720px;
        }

        .category-hero .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 20px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }

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

        .category-hero .hero-meta .meta-dot {
            width: 6px;
            height: 6px;
            background-color: var(--color-accent);
            border-radius: 50%;
            flex-shrink: 0;
        }

        /* Section common */
        .section {
            padding: 40px 32px;
        }

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

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

        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.35;
            letter-spacing: 0.3px;
        }

        .section-dark .section-title {
            color: #FFFFFF;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--color-text-secondary);
            margin-bottom: 28px;
            max-width: 650px;
            line-height: 1.7;
        }

        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.65);
        }

        /* Tactic list */
        .tactic-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .tactic-card {
            display: grid;
            grid-template-columns: 64px 1fr;
            gap: 20px;
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
            position: relative;
        }

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

        .tactic-card .tactic-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-text-secondary);
            line-height: 1;
            display: flex;
            align-items: flex-start;
            justify-content: center;
            padding-top: 2px;
            opacity: 0.35;
            letter-spacing: -1px;
            transition: color var(--transition-fast), opacity var(--transition-fast);
        }

        .tactic-card:hover .tactic-number {
            color: var(--color-accent);
            opacity: 1;
        }

        .tactic-card .tactic-content {
            min-width: 0;
        }

        .tactic-card .tactic-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.45;
            letter-spacing: 0.2px;
        }

        .tactic-card .tactic-summary {
            font-size: 14px;
            line-height: 1.7;
            color: var(--color-text-secondary);
            margin-bottom: 14px;
        }

        .tactic-card .tactic-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            font-size: 13px;
            color: var(--color-text-secondary);
        }

        .tactic-card .tactic-date {
            font-family: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
            font-size: 13px;
            letter-spacing: 0.3px;
            color: var(--color-text-secondary);
            opacity: 0.75;
            flex-shrink: 0;
        }

        .tactic-card .tactic-tag {
            display: inline-flex;
            align-items: center;
            padding: 3px 10px;
            font-size: 12px;
            font-weight: 500;
            background-color: rgba(200, 255, 46, 0.1);
            color: #5d7018;
            border-radius: 20px;
            letter-spacing: 0.3px;
            flex-shrink: 0;
        }

        .read-more-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-bottom: 1px solid var(--color-accent);
            padding-bottom: 2px;
            transition: color var(--transition-fast), border-color var(--transition-fast), gap var(--transition-fast);
            cursor: pointer;
            flex-shrink: 0;
        }

        .read-more-link:hover {
            color: #5d7018;
            border-color: #5d7018;
            gap: 10px;
        }

        .read-more-link .arrow {
            display: inline-block;
            transition: transform var(--transition-fast);
            font-size: 13px;
        }

        .read-more-link:hover .arrow {
            transform: translateX(2px);
        }

        /* Popular tactics */
        .popular-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
        }

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

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

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

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

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

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

        .popular-card .popular-tag {
            font-size: 12px;
            font-weight: 600;
            color: #5d7018;
            background-color: rgba(200, 255, 46, 0.12);
            padding: 4px 10px;
            border-radius: 20px;
            display: inline-block;
            margin-bottom: 10px;
            align-self: flex-start;
            letter-spacing: 0.3px;
        }

        .popular-card .popular-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .popular-card .popular-desc {
            font-size: 14px;
            line-height: 1.65;
            color: var(--color-text-secondary);
            flex: 1;
            margin-bottom: 14px;
        }

        /* Tag cloud */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-cloud .tag-item {
            font-size: 14px;
            padding: 8px 18px;
            border: 1px solid var(--color-border);
            border-radius: 24px;
            color: var(--color-text-secondary);
            background-color: var(--color-surface);
            transition: all var(--transition-fast);
            cursor: pointer;
            min-height: 40px;
            display: flex;
            align-items: center;
            line-height: 1.4;
        }

        .tag-cloud .tag-item:hover {
            border-color: var(--color-accent);
            color: var(--color-text);
            background-color: rgba(200, 255, 46, 0.06);
        }

        /* Learning path */
        .path-steps {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 20px;
        }

        .path-step {
            background-color: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            transition: border-color var(--transition-base), background-color var(--transition-base);
        }

        .path-step:hover {
            border-color: rgba(200, 255, 46, 0.4);
            background-color: rgba(255, 255, 255, 0.08);
        }

        .path-step .step-number {
            font-size: 40px;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1;
            margin-bottom: 12px;
            letter-spacing: -1px;
        }

        .path-step .step-title {
            font-size: 17px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .path-step .step-desc {
            font-size: 14px;
            line-height: 1.65;
            color: rgba(255, 255, 255, 0.65);
        }

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

        .faq-item {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

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

        .faq-item.active {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            width: 100%;
            text-align: left;
            line-height: 1.5;
            transition: color var(--transition-fast);
            min-height: 52px;
        }

        .faq-question:hover {
            color: #5d7018;
        }

        .faq-question .faq-icon {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform var(--transition-base);
            color: var(--color-text-secondary);
        }

        .faq-item.active .faq-question .faq-icon {
            transform: rotate(180deg);
            color: #5d7018;
        }

        .faq-question .faq-icon svg {
            width: 18px;
            height: 18px;
            display: block;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 20px;
            font-size: 14px;
            line-height: 1.7;
            color: var(--color-text-secondary);
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            margin-bottom: 0;
        }

        /* Subscribe CTA */
        .subscribe-section {
            background-color: var(--color-primary);
            color: #FFFFFF;
            padding: 48px 32px;
            border-radius: 0;
        }

        .subscribe-inner {
            max-width: 650px;
        }

        .subscribe-heading {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .subscribe-heading .accent-highlight {
            color: var(--color-accent);
        }

        .subscribe-desc {
            font-size: 15px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 24px;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .subscribe-form .form-group {
            flex: 1;
            min-width: 240px;
        }

        .subscribe-form label {
            font-size: 13px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.7);
            display: block;
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }

        .subscribe-form input {
            width: 100%;
            padding: 12px 16px;
            font-size: 15px;
            line-height: 1.5;
            background-color: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-btn);
            color: #FFFFFF;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            min-height: 48px;
        }

        .subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }

        .subscribe-form input:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(200, 255, 46, 0.15);
            outline: none;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-primary);
            background-color: var(--color-accent);
            border-radius: var(--radius-btn);
            transition: all var(--transition-base);
            min-height: 48px;
            letter-spacing: 0.3px;
            white-space: nowrap;
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background-color: #b8e926;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(200, 255, 46, 0.25);
        }

        .btn-primary:active {
            transform: scale(0.98);
            box-shadow: none;
        }

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

        /* Footer */
        .site-footer {
            background-color: var(--color-primary);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 24px;
            margin-top: 0;
        }

        .site-footer .container {
            padding: 0 var(--gutter);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }

        .footer-brand .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 14px;
        }

        .footer-brand .footer-logo .logo-dot {
            width: 10px;
            height: 10px;
            background-color: var(--color-accent);
            border-radius: 2px;
            display: inline-block;
            flex-shrink: 0;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
            padding: 4px 0;
            display: inline-block;
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

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

        .footer-links-bottom a {
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-fast);
            padding: 4px 0;
        }

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

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

        /* Backdrop for mobile sidebar */
        .sidebar-backdrop {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.4);
            z-index: 90;
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .sidebar-backdrop.active {
            opacity: 1;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .sidebar {
                position: fixed;
                left: 0;
                top: var(--header-height);
                bottom: 0;
                height: calc(100vh - var(--header-height));
                z-index: 95;
                transform: translateX(-100%);
                transition: transform var(--transition-base);
                box-shadow: 2px 0 16px rgba(0, 0, 0, 0.08);
                border-right: 1px solid var(--color-border);
                width: 280px;
                padding: 20px 16px 32px 20px;
            }

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

            .sidebar-backdrop {
                display: block;
            }

            .nav-toggle {
                display: flex;
            }

            .header-search {
                max-width: 200px;
            }

            .main-content {
                width: 100%;
            }

            .category-hero,
            .section,
            .subscribe-section {
                padding-left: 20px;
                padding-right: 20px;
            }

            .breadcrumb-wrapper {
                padding-left: 20px;
                padding-right: 20px;
            }

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

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

            .header-lang {
                display: none;
            }

            .site-header {
                padding: 0 12px;
                gap: 8px;
            }

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

            .category-hero .hero-desc {
                font-size: 15px;
            }

            .section {
                padding: 28px 16px;
            }

            .category-hero {
                padding: 28px 16px 20px;
            }

            .breadcrumb-wrapper {
                padding: 16px 16px 0;
            }

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

            .tactic-card {
                grid-template-columns: 48px 1fr;
                gap: 14px;
                padding: 18px 16px;
            }

            .tactic-card .tactic-number {
                font-size: 26px;
            }

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

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

            .path-steps {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .subscribe-section {
                padding: 32px 16px;
            }

            .subscribe-heading {
                font-size: 24px;
            }

            .subscribe-form {
                flex-direction: column;
            }

            .subscribe-form .form-group {
                min-width: 100%;
            }

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

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
        }

        @media (max-width: 520px) {
            .site-header .logo {
                font-size: 17px;
                letter-spacing: 0.3px;
            }

            .category-hero h1 {
                font-size: 24px;
            }

            .category-hero .hero-desc {
                font-size: 14px;
                line-height: 1.65;
            }

            .category-hero .hero-meta {
                font-size: 12px;
                gap: 10px;
                flex-wrap: wrap;
            }

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

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

            .tactic-card .tactic-tag {
                font-size: 11px;
                padding: 2px 8px;
            }

            .tag-cloud {
                gap: 8px;
            }

            .tag-cloud .tag-item {
                font-size: 13px;
                padding: 6px 14px;
                min-height: 36px;
            }

            .btn-primary {
                width: 100%;
                justify-content: center;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }

/* roulang page: category6 */
:root {
            --color-primary: #111316;
            --color-accent: #C8FF2E;
            --color-bg: #F7F8F5;
            --color-surface: #FFFFFF;
            --color-text: #17191D;
            --color-text-secondary: #5D6268;
            --color-border: #E4E7E0;
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-image: 12px;
            --shadow-card: 0 6px 20px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 12px 28px rgba(0, 0, 0, 0.08);
            --transition-fast: 180ms ease;
            --transition-base: 220ms ease;
            --transition-slow: 260ms ease;
            --font-sans: 'HarmonyOS Sans SC', 'PingFang SC', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --sidebar-width: 270px;
            --header-height: 64px;
            --container-max: 1200px;
            --section-spacing-desktop: 88px;
            --section-spacing-mobile: 52px;
            --gutter: 24px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

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

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

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            height: var(--header-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            gap: 16px;
        }

        .site-header .logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }

        .site-header .logo .logo-dot {
            width: 10px;
            height: 10px;
            background-color: var(--color-accent);
            border-radius: 2px;
            display: inline-block;
            flex-shrink: 0;
        }

        .header-search {
            flex: 1;
            max-width: 380px;
            display: flex;
            align-items: center;
            background-color: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            padding: 8px 14px;
            gap: 8px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .header-search:focus-within {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(200, 255, 46, 0.15);
        }

        .header-search input {
            flex: 1;
            background: none;
            border: none;
            outline: none;
            color: var(--color-text);
            font-size: 14px;
            line-height: 1.5;
            min-width: 0;
        }

        .header-search input::placeholder {
            color: var(--color-text-secondary);
            opacity: 0.7;
        }

        .header-search .search-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            color: var(--color-text-secondary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .header-search .search-icon svg {
            width: 18px;
            height: 18px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

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

        .lang-switch {
            font-size: 13px;
            color: var(--color-text-secondary);
            padding: 6px 10px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition-fast);
            min-height: 36px;
        }

        .lang-switch:hover {
            border-color: var(--color-accent);
            color: var(--color-text);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 6px;
            cursor: pointer;
            min-width: 44px;
            min-height: 44px;
            justify-content: center;
            align-items: center;
            border: 1px solid var(--color-border);
            background: var(--color-surface);
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background-color: var(--color-text);
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        /* Layout */
        .layout-wrapper {
            display: flex;
            max-width: var(--container-max);
            margin: 0 auto;
            position: relative;
            gap: 0;
        }

        .sidebar {
            width: var(--sidebar-width);
            flex-shrink: 0;
            padding: 32px 16px 40px 0;
            position: sticky;
            top: var(--header-height);
            height: calc(100vh - var(--header-height));
            overflow-y: auto;
            border-right: 1px solid var(--color-border);
            background-color: var(--color-bg);
        }

        .sidebar-title {
            font-size: 12px;
            font-weight: 600;
            color: var(--color-text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.8px;
            margin-bottom: 12px;
            padding-left: 4px;
        }

        .sidebar-section-tag {
            font-size: 11px;
            font-weight: 700;
            color: var(--color-text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.6px;
            margin: 18px 0 10px 4px;
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .sidebar-nav a {
            font-size: 14px;
            color: var(--color-text-secondary);
            padding: 8px 12px;
            border-radius: 6px;
            transition: all var(--transition-fast);
            border-left: 2px solid transparent;
            display: block;
            line-height: 1.4;
            min-height: 36px;
        }

        .sidebar-nav a:hover {
            background-color: rgba(200, 255, 46, 0.08);
            color: var(--color-text);
            border-left-color: var(--color-accent);
        }

        .sidebar-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
            border-left-color: var(--color-accent);
            background-color: rgba(200, 255, 46, 0.12);
        }

        .main-content {
            flex: 1;
            min-width: 0;
            padding: 32px 0 0 32px;
        }

        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(17, 19, 22, 0.45);
            z-index: 90;
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .sidebar-overlay.open {
            opacity: 1;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

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

        .breadcrumb a:hover {
            color: var(--color-text);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .breadcrumb .sep {
            color: var(--color-border);
            font-size: 12px;
        }

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

        /* Category hero */
        .category-hero {
            margin-bottom: 36px;
            padding-bottom: 28px;
            border-bottom: 1px solid var(--color-border);
        }

        .category-hero .cat-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
            background-color: rgba(200, 255, 46, 0.35);
            border-radius: 20px;
            padding: 4px 14px;
            margin-bottom: 14px;
        }

        .category-hero .cat-badge .badge-dot {
            width: 6px;
            height: 6px;
            background-color: var(--color-accent);
            border-radius: 50%;
            display: inline-block;
        }

        .category-hero h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-primary);
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }

        .category-hero .cat-desc {
            font-size: 16px;
            line-height: 1.85;
            color: var(--color-text-secondary);
            max-width: 720px;
        }

        /* Section base */
        .section {
            padding: 40px 0;
            border-bottom: 1px solid var(--color-border);
        }

        .section:last-child {
            border-bottom: none;
        }

        .section-header {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .section-header h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.3px;
            line-height: 1.35;
        }

        .section-header .section-more {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 6px 12px;
            border-radius: var(--radius-btn);
            transition: all var(--transition-fast);
        }

        .section-header .section-more:hover {
            color: var(--color-primary);
            background-color: rgba(200, 255, 46, 0.12);
        }

        /* Feed stream */
        .feed-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .feed-item {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px 22px;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
            position: relative;
        }

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

        .feed-item-head {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
        }

        .feed-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--color-primary);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
            letter-spacing: 0.5px;
        }

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

        .feed-username {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.3;
        }

        .feed-time {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.4;
        }

        .feed-tag {
            font-size: 12px;
            font-weight: 500;
            color: var(--color-text-secondary);
            background-color: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: 20px;
            padding: 3px 10px;
            white-space: nowrap;
        }

        .feed-item-body {
            margin-bottom: 14px;
        }

        .feed-item-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-primary);
            line-height: 1.45;
            margin-bottom: 8px;
        }

        .feed-item-body p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.75;
        }

        .feed-item-foot {
            display: flex;
            align-items: center;
            gap: 18px;
            padding-top: 12px;
            border-top: 1px solid var(--color-border);
        }

        .feed-meta {
            font-size: 13px;
            color: var(--color-text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .feed-meta svg {
            width: 15px;
            height: 15px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .feed-read-more {
            margin-left: auto;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 6px 12px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .feed-read-more:hover {
            border-color: var(--color-accent);
            background-color: rgba(200, 255, 46, 0.1);
        }

        /* Hot topics */
        .hot-topics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .hot-topic-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
        }

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

        .hot-topic-card .topic-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            border-radius: 0;
        }

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

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

        .hot-topic-card .topic-body {
            padding: 16px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .hot-topic-card .topic-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            line-height: 1.45;
            margin-bottom: 8px;
        }

        .hot-topic-card .topic-body p {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
            flex: 1;
        }

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

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

        .topic-rank {
            font-size: 12px;
            font-weight: 700;
            color: var(--color-primary);
            background-color: rgba(200, 255, 46, 0.3);
            padding: 2px 8px;
            border-radius: 4px;
            margin-right: auto;
        }

        /* Stats */
        .stats-band {
            background-color: var(--color-primary);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            color: var(--color-surface);
            position: relative;
            overflow: hidden;
        }

        .stats-band::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background-color: var(--color-accent);
        }

        .stat-item {
            text-align: center;
        }

        .stat-number {
            font-size: 42px;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1.2;
            letter-spacing: -1px;
            margin-bottom: 6px;
            font-variant-numeric: tabular-nums;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.5;
        }

        /* Tags */
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text);
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: 30px;
            padding: 8px 16px;
            transition: all var(--transition-fast);
            min-height: 40px;
        }

        .tag-chip:hover {
            border-color: var(--color-accent);
            background-color: rgba(200, 255, 46, 0.08);
            transform: translateY(-1px);
        }

        .tag-chip .tag-count {
            font-size: 12px;
            color: var(--color-text-secondary);
            background-color: var(--color-bg);
            padding: 2px 8px;
            border-radius: 12px;
            font-weight: 600;
        }

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

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            text-align: left;
            background: none;
            cursor: pointer;
            min-height: 56px;
            transition: all var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--color-primary);
            background-color: rgba(200, 255, 46, 0.05);
        }

        .faq-question .faq-icon {
            width: 22px;
            height: 22px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
            position: relative;
        }

        .faq-question .faq-icon::before,
        .faq-question .faq-icon::after {
            content: '';
            position: absolute;
            background-color: var(--color-text-secondary);
            transition: all var(--transition-base);
        }

        .faq-question .faq-icon::before {
            width: 10px;
            height: 2px;
            border-radius: 2px;
        }

        .faq-question .faq-icon::after {
            width: 2px;
            height: 10px;
            border-radius: 2px;
        }

        .faq-item.open .faq-question .faq-icon::after {
            transform: rotate(90deg);
            opacity: 0;
        }

        .faq-item.open .faq-question .faq-icon {
            border-color: var(--color-accent);
            background-color: rgba(200, 255, 46, 0.15);
        }

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

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

        .faq-answer p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }

        /* CTA */
        .cta-band {
            background-color: var(--color-primary);
            border-radius: var(--radius-card);
            padding: 44px 36px;
            text-align: center;
            color: var(--color-surface);
            position: relative;
            overflow: hidden;
        }

        .cta-band::after {
            content: '';
            position: absolute;
            right: -60px;
            top: -60px;
            width: 200px;
            height: 200px;
            background-color: rgba(200, 255, 46, 0.08);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-band h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-surface);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
            position: relative;
            z-index: 1;
        }

        .cta-band p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.72);
            line-height: 1.75;
            max-width: 520px;
            margin: 0 auto 22px;
            position: relative;
            z-index: 1;
        }

        .cta-band .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 700;
            color: var(--color-primary);
            background-color: var(--color-accent);
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            transition: all var(--transition-fast);
            position: relative;
            z-index: 1;
            min-height: 48px;
            border: 2px solid var(--color-accent);
        }

        .cta-band .cta-btn:hover {
            background-color: transparent;
            color: var(--color-accent);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 255, 46, 0.2);
        }

        .cta-band .cta-btn:active {
            transform: scale(0.98);
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-primary);
            color: rgba(255, 255, 255, 0.75);
            margin-top: 64px;
            padding: 48px 0 24px;
        }

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

        .footer-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-surface);
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 14px;
        }

        .footer-logo .logo-dot {
            width: 10px;
            height: 10px;
            background-color: var(--color-accent);
            border-radius: 2px;
            display: inline-block;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.6);
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-surface);
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
            display: inline-block;
            padding: 2px 0;
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            flex-wrap: wrap;
        }

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

        .footer-links-bottom a {
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition-fast);
            padding: 4px 2px;
        }

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

        /* Sticky CTA in sidebar */
        .sidebar-cta {
            margin-top: 20px;
            padding: 16px;
            background-color: var(--color-primary);
            border-radius: var(--radius-card);
            color: var(--color-surface);
            font-size: 13px;
            line-height: 1.6;
        }

        .sidebar-cta .cta-mini-btn {
            display: block;
            text-align: center;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
            background-color: var(--color-accent);
            border-radius: var(--radius-btn);
            padding: 8px 14px;
            margin-top: 10px;
            transition: all var(--transition-fast);
            min-height: 40px;
            border: 1px solid var(--color-accent);
        }

        .sidebar-cta .cta-mini-btn:hover {
            background-color: transparent;
            color: var(--color-accent);
        }

        /* Accordion transition */
        .faq-answer {
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .sidebar {
                position: fixed;
                left: 0;
                top: var(--header-height);
                bottom: 0;
                width: 280px;
                z-index: 95;
                transform: translateX(-100%);
                transition: transform var(--transition-base);
                padding: 24px 16px 40px 16px;
                height: auto;
                overflow-y: auto;
                border-right: 1px solid var(--color-border);
                background-color: var(--color-bg);
                box-shadow: 4px 0 24px rgba(0, 0, 0, 0.1);
            }

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

            .sidebar-overlay {
                display: block;
                pointer-events: none;
            }

            .sidebar-overlay.open {
                pointer-events: auto;
            }

            .main-content {
                padding: 24px 0 0 0;
            }

            .nav-toggle {
                display: flex;
            }

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

            .stats-band {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-spacing-desktop: 64px;
                --section-spacing-mobile: 44px;
                --gutter: 18px;
            }

            .site-header {
                padding: 0 14px;
                gap: 10px;
            }

            .header-search {
                max-width: 200px;
                padding: 6px 10px;
            }

            .header-search input {
                font-size: 13px;
            }

            .lang-switch {
                font-size: 12px;
                padding: 5px 8px;
                min-height: 34px;
            }

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

            .category-hero .cat-desc {
                font-size: 15px;
            }

            .section {
                padding: 28px 0;
            }

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

            .feed-item {
                padding: 16px 14px;
            }

            .feed-item-head {
                flex-wrap: wrap;
                gap: 8px;
            }

            .feed-avatar {
                width: 34px;
                height: 34px;
                font-size: 14px;
            }

            .feed-item-body h3 {
                font-size: 15px;
            }

            .feed-item-foot {
                flex-wrap: wrap;
                gap: 8px;
            }

            .feed-read-more {
                margin-left: 0;
                width: 100%;
                justify-content: center;
                min-height: 40px;
            }

            .hot-topics-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .stats-band {
                grid-template-columns: 1fr 1fr;
                padding: 24px 16px;
                gap: 14px;
            }

            .stat-number {
                font-size: 32px;
            }

            .stat-label {
                font-size: 12px;
            }

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

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

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

            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 520px) {
            .site-header .logo {
                font-size: 17px;
            }

            .header-search {
                max-width: 120px;
                padding: 5px 8px;
            }

            .header-search input {
                font-size: 12px;
            }

            .header-actions {
                gap: 6px;
            }

            .lang-switch {
                font-size: 11px;
                padding: 4px 6px;
                min-height: 32px;
            }

            .category-hero h1 {
                font-size: 24px;
            }

            .stats-band {
                grid-template-columns: 1fr;
                gap: 12px;
                padding: 20px 14px;
            }

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

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

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

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

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

            html {
                scroll-behavior: auto;
            }
        }

/* 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}