/* roulang page: index */
:root {
            --primary: #1A6DD4;
            --primary-light: #E8F1FC;
            --primary-10: rgba(26, 109, 212, 0.10);
            --accent: #FF6A00;
            --accent-dark: #E55F00;
            --bg: #F7F9FC;
            --card-bg: #FFFFFF;
            --text-dark: #1A1A2E;
            --text-muted: #6B7280;
            --border: #E5E9F0;
            --radius: 14px;
            --radius-sm: 10px;
            --shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 6px 20px rgba(26, 109, 212, 0.10);
            --font-sans: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --transition: all 0.25s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text-dark);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: var(--font-sans);
            font-size: 1rem;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }
        @media (max-width: 1024px) {
            .container {
                padding: 0 24px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 20px;
            letter-spacing: 1px;
        }
        .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            flex-wrap: wrap;
        }
        .nav-links a {
            color: var(--text-dark);
            font-size: 0.95rem;
            font-weight: 500;
            position: relative;
            padding: 6px 2px;
            white-space: nowrap;
            transition: var(--transition);
        }
        .nav-links a:hover {
            color: var(--primary);
        }
        .nav-links a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 3px 10px rgba(255, 106, 0, 0.25);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(255, 106, 0, 0.32);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 2px 6px rgba(255, 106, 0, 0.2);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-10);
            color: var(--primary);
        }
        .btn-lg {
            padding: 14px 30px;
            font-size: 1.05rem;
            border-radius: 10px;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 0.875rem;
            border-radius: 8px;
        }
        .btn-disabled {
            background: #D1D5DB;
            color: #fff;
            cursor: not-allowed;
            box-shadow: none;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
            z-index: 110;
        }
        .hamburger span {
            display: block;
            width: 28px;
            height: 3px;
            background: var(--text-dark);
            border-radius: 3px;
            transition: var(--transition);
        }
        .hamburger.open span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 20px 24px 32px;
            z-index: 99;
            flex-direction: column;
            gap: 12px;
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            font-size: 1.1rem;
            padding: 12px 8px;
            border-bottom: 1px solid var(--border);
            color: var(--text-dark);
            font-weight: 500;
        }
        .mobile-menu a:hover {
            color: var(--primary);
        }
        .mobile-menu .btn {
            margin-top: 12px;
            text-align: center;
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .header-cta .btn-outline {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .header-cta .btn-primary {
                display: none;
            }
            .mobile-menu .btn-primary {
                display: flex;
            }
            .header-inner {
                height: 64px;
            }
            .mobile-menu {
                top: 64px;
            }
        }
        .hero-section {
            position: relative;
            min-height: 600px;
            background-image: linear-gradient(180deg, rgba(247, 249, 252, 0.88) 0%, rgba(247, 249, 252, 0.95) 100%), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            padding: 72px 0 80px;
        }
        .hero-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary-10);
            color: var(--primary);
            font-size: 0.875rem;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 50px;
            margin-bottom: 18px;
        }
        .hero-badge .dot {
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.5);
            }
        }
        .hero-title {
            font-size: 2.6rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-dark);
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }
        .hero-title .highlight {
            color: var(--primary);
        }
        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 520px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }
        .hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }
        .hero-stat {
            text-align: left;
        }
        .hero-stat .number {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
        }
        .hero-stat .label {
            font-size: 0.875rem;
            color: var(--text-muted);
        }
        .hero-panel {
            background: var(--card-bg);
            border-radius: 16px;
            box-shadow: var(--shadow-hover);
            padding: 32px 28px;
            border: 1px solid var(--border);
        }
        .hero-panel-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
        }
        .hero-panel-progress {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }
        .progress-bar {
            flex: 1;
            height: 10px;
            background: #E5E9F0;
            border-radius: 5px;
            overflow: hidden;
        }
        .progress-bar-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 5px;
            transition: width 0.6s ease;
        }
        .hero-panel .group-info {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .hero-panel .group-info strong {
            color: var(--text-dark);
        }
        .hero-panel .btn-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-section {
                padding: 56px 0 64px;
                min-height: auto;
            }
            .hero-title {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-desc {
                font-size: 0.98rem;
            }
            .hero-stats {
                gap: 16px;
            }
            .hero-stat .number {
                font-size: 1.4rem;
            }
        }
        .section-block {
            padding: 72px 0;
        }
        .section-block.alt-bg {
            background: #fff;
        }
        .section-block.gray-bg {
            background: #F0F3F7;
        }
        @media (max-width: 768px) {
            .section-block {
                padding: 48px 0;
            }
        }
        .section-header {
            margin-bottom: 40px;
        }
        .section-header h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.4;
            margin-bottom: 12px;
        }
        .section-header p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.75;
        }
        .section-tag {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
            background: rgba(255, 106, 0, 0.08);
            padding: 4px 14px;
            border-radius: 50px;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .metric-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 28px 24px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
            text-align: center;
        }
        .metric-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--primary);
        }
        .metric-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .metric-name {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .metric-desc {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        @media (max-width: 1024px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 520px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .metric-card {
                padding: 18px 14px;
            }
            .metric-number {
                font-size: 1.6rem;
            }
        }
        .service-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 20px;
        }
        .service-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 32px 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .service-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .service-card.featured {
            grid-row: span 2;
            background: linear-gradient(160deg, #fff 60%, var(--primary-light));
            border-color: var(--primary);
        }
        .service-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
        }
        .service-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .service-card .service-link {
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .service-card .service-link:hover {
            color: var(--accent);
        }
        .service-card .icon-circle {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-10);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 16px;
        }
        @media (max-width: 1024px) {
            .service-grid {
                grid-template-columns: 1fr 1fr;
            }
            .service-card.featured {
                grid-row: auto;
                grid-column: span 2;
            }
        }
        @media (max-width: 520px) {
            .service-grid {
                grid-template-columns: 1fr;
            }
            .service-card.featured {
                grid-column: auto;
            }
        }
        .deep-content {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 40px 36px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            max-width: 900px;
            margin: 0 auto;
        }
        .deep-content h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 16px;
            line-height: 1.5;
        }
        .deep-content h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-top: 24px;
            margin-bottom: 10px;
        }
        .deep-content p {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.85;
            margin-bottom: 16px;
        }
        .deep-content p:last-child {
            margin-bottom: 0;
        }
        @media (max-width: 768px) {
            .deep-content {
                padding: 28px 20px;
            }
        }
        .comparison-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            max-width: 1000px;
            margin: 0 auto;
        }
        .comparison-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 32px 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .comparison-card.old {
            border-top: 4px solid #D1D5DB;
        }
        .comparison-card.new {
            border-top: 4px solid var(--accent);
            background: linear-gradient(160deg, #fff 70%, rgba(255, 106, 0, 0.04));
        }
        .comparison-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .comparison-card ul {
            list-style: none;
            padding: 0;
        }
        .comparison-card li {
            font-size: 0.95rem;
            color: var(--text-muted);
            padding: 8px 0;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }
        .comparison-card li:last-child {
            border-bottom: none;
        }
        .comparison-card li .check {
            color: var(--primary);
            font-weight: 700;
            flex-shrink: 0;
        }
        .comparison-card li .cross {
            color: #D1D5DB;
            font-weight: 700;
            flex-shrink: 0;
        }
        @media (max-width: 768px) {
            .comparison-wrapper {
                grid-template-columns: 1fr;
            }
        }
        .highlight-wall {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .highlight-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .highlight-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .highlight-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .highlight-card .highlight-body {
            padding: 20px;
        }
        .highlight-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .highlight-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 14px;
        }
        .highlight-card .btn {
            font-size: 0.85rem;
            padding: 8px 16px;
        }
        @media (max-width: 1024px) {
            .highlight-wall {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .highlight-wall {
                grid-template-columns: 1fr;
            }
        }
        .data-analysis-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .data-block {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .data-block .data-value {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
        }
        .data-block .data-label {
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .data-block .trend-up {
            color: #10B981;
            font-size: 0.85rem;
            font-weight: 600;
        }
        @media (max-width: 1024px) {
            .data-analysis-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .data-analysis-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .data-block .data-value {
                font-size: 1.5rem;
            }
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 1000px;
        }
        .news-item {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 22px 24px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }
        .news-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }
        .news-item.featured {
            flex-direction: column;
            gap: 14px;
            padding: 28px;
        }
        .news-item.featured img {
            width: 100%;
            height: 260px;
            object-fit: cover;
            border-radius: 8px;
            margin-bottom: 8px;
        }
        .news-item .news-thumb {
            width: 160px;
            height: 110px;
            object-fit: cover;
            border-radius: 8px;
            flex-shrink: 0;
        }
        .news-item .news-content {
            flex: 1;
        }
        .news-date {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }
        .news-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .news-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 10px;
        }
        .news-link {
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--primary);
        }
        .news-link:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        @media (max-width: 520px) {
            .news-item {
                flex-direction: column;
                padding: 18px 16px;
            }
            .news-item .news-thumb {
                width: 100%;
                height: 180px;
            }
            .news-item.featured img {
                height: 200px;
            }
        }
        .faq-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item.active {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            background: transparent;
            border: none;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: var(--transition);
            border-radius: var(--radius-sm);
        }
        .faq-question:hover {
            color: var(--primary);
            background: var(--primary-10);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 1.2rem;
            color: var(--primary);
            transition: var(--transition);
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 22px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.75;
            border-left: 3px solid var(--primary);
            margin-left: 4px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-top: 12px;
            padding-bottom: 18px;
        }
        .form-card {
            background: var(--card-bg);
            border-radius: 16px;
            padding: 40px 36px;
            box-shadow: var(--shadow-hover);
            border: 1px solid var(--border);
            max-width: 560px;
            margin: 0 auto;
        }
        .form-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 10px;
            text-align: center;
        }
        .form-card .form-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            text-align: center;
            margin-bottom: 28px;
            line-height: 1.7;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: 8px;
            background: #fff;
            font-size: 0.95rem;
            color: var(--text-dark);
            transition: var(--transition);
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 109, 212, 0.1);
        }
        .form-group textarea {
            resize: vertical;
            min-height: 100px;
        }
        .form-privacy {
            font-size: 0.8rem;
            color: var(--text-muted);
            text-align: center;
            margin-top: 14px;
        }
        .form-submit {
            width: 100%;
            padding: 14px 0;
            font-size: 1.05rem;
            font-weight: 700;
            letter-spacing: 1px;
        }
        .site-footer {
            background: #1A1A2E;
            color: #B0B8C4;
            padding: 56px 0 32px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo-text {
            color: #fff;
            font-size: 1.4rem;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: #8A94A6;
            line-height: 1.7;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col li {
            margin-bottom: 10px;
        }
        .footer-col a {
            color: #8A94A6;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: #8A94A6;
        }
        .footer-bottom a {
            color: #8A94A6;
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        @media (max-width: 1024px) {
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 520px) {
            .footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }
        .recommend-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .recommend-card {
            background: var(--card-bg);
            border-radius: var(--radius-sm);
            padding: 20px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
            text-align: center;
        }
        .recommend-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .recommend-card img {
            width: 100%;
            height: 120px;
            object-fit: cover;
            border-radius: 6px;
            margin-bottom: 12px;
        }
        .recommend-card h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-dark);
        }
        .recommend-card .rec-link {
            font-size: 0.85rem;
            font-weight: 600;
        }
        @media (max-width: 1024px) {
            .recommend-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .recommend-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .recommend-card {
                padding: 14px;
            }
        }
        .latest-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 800px;
        }
        .latest-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: var(--card-bg);
            border-radius: var(--radius-sm);
            padding: 14px 20px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            flex-wrap: wrap;
        }
        .latest-row .latest-title {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-dark);
            flex: 1;
            min-width: 180px;
        }
        .latest-row .latest-status {
            font-size: 0.8rem;
            padding: 4px 12px;
            border-radius: 50px;
            font-weight: 600;
            white-space: nowrap;
        }
        .status-new {
            background: rgba(16, 185, 129, 0.12);
            color: #10B981;
        }
        .status-updated {
            background: rgba(26, 109, 212, 0.12);
            color: var(--primary);
        }
        .latest-row .latest-date {
            font-size: 0.85rem;
            color: var(--text-muted);
            white-space: nowrap;
        }
        @media (max-width: 520px) {
            .latest-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }
        .crumb {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .crumb a {
            color: var(--primary);
        }

/* roulang page: category1 */
:root {
            --primary: #1A6DD4;
            --primary-light: #E8F1FC;
            --primary-10: rgba(26, 109, 212, 0.10);
            --accent: #FF6A00;
            --accent-dark: #E55F00;
            --bg: #F7F9FC;
            --card-bg: #FFFFFF;
            --text-dark: #1A1A2E;
            --text-muted: #6B7280;
            --border: #E5E9F0;
            --radius: 14px;
            --radius-sm: 10px;
            --shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 6px 20px rgba(26, 109, 212, 0.10);
            --font-sans: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --transition: all 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text-dark);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

        button,
        input,
        textarea {
            font-family: var(--font-sans);
            font-size: 1rem;
            outline: none;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

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

        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 20px;
            letter-spacing: 1px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            flex-wrap: wrap;
        }

        .nav-links a {
            color: var(--text-dark);
            font-size: 0.95rem;
            font-weight: 500;
            position: relative;
            padding: 6px 2px;
            white-space: nowrap;
            transition: var(--transition);
        }

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

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

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 3px 10px rgba(255, 106, 0, 0.25);
        }

        .btn-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(255, 106, 0, 0.32);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 2px 6px rgba(255, 106, 0, 0.2);
        }

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

        .btn-outline:hover {
            background: var(--primary-10);
            color: var(--primary);
        }

        .btn-lg {
            padding: 14px 30px;
            font-size: 1.05rem;
            border-radius: 12px;
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 0.875rem;
            border-radius: 8px;
        }

        .btn-white-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.7);
        }

        .btn-white-outline:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            border-color: #fff;
        }

        .btn-disabled {
            background: #D1D5DB;
            color: #fff;
            cursor: not-allowed;
            box-shadow: none;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
            z-index: 120;
        }

        .hamburger span {
            display: block;
            width: 28px;
            height: 3px;
            background: var(--text-dark);
            border-radius: 3px;
            transition: var(--transition);
        }

        .hamburger.open span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }

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

        .hamburger.open span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            background: #fff;
            z-index: 90;
            padding: 24px 20px;
            overflow-y: auto;
            flex-direction: column;
            gap: 8px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
        }

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

        .mobile-menu a {
            display: block;
            padding: 14px 8px;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-dark);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--primary);
        }

        .mobile-menu .btn {
            margin-top: 12px;
            width: 100%;
        }

        .hero-esports {
            position: relative;
            min-height: 480px;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-esports::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(255, 255, 255, 0.88) 0%, rgba(255, 255, 255, 0.7) 40%, rgba(26, 109, 212, 0.15) 100%);
        }

        .hero-esports-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 60px 0;
        }

        .hero-esports h1 {
            font-size: 2.6rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-dark);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .hero-esports .hero-sub {
            font-size: 1.15rem;
            color: #3D4A5C;
            max-width: 620px;
            line-height: 1.7;
            margin-bottom: 28px;
        }

        .countdown-bar {
            display: inline-flex;
            align-items: center;
            gap: 16px;
            background: rgba(255, 255, 255, 0.75);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.5);
            border-radius: 12px;
            padding: 14px 24px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }

        .countdown-label {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-dark);
            white-space: nowrap;
        }

        .countdown-digits {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .countdown-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            min-width: 52px;
        }

        .countdown-num {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
        }

        .countdown-unit {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .countdown-sep {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-muted);
            line-height: 1;
        }

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

        .breadcrumb-area {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

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

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

        .breadcrumb .sep {
            color: #CBD5E0;
        }

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

        .category-header-section {
            background: #fff;
            padding: 44px 0 36px;
            border-bottom: 1px solid var(--border);
        }

        .category-header-inner {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .category-header-title {
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.35;
            margin-bottom: 12px;
        }

        .category-header-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 720px;
            line-height: 1.75;
        }

        .category-stats {
            display: flex;
            gap: 28px;
            flex-shrink: 0;
        }

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

        .category-stat-num {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }

        .category-stat-label {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .main-content-area {
            padding: 48px 0 64px;
        }

        .content-grid-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            align-items: start;
        }

        .content-list-primary {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

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

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

        .featured-card-image {
            aspect-ratio: 16/9;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .featured-card-image .tag-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--accent);
            color: #fff;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .featured-card-body {
            padding: 24px 28px;
        }

        .featured-card-body .meta-row {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .featured-card-body .date-text {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .featured-card-body .cat-tag {
            font-size: 0.8rem;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 12px;
            border-radius: 16px;
            font-weight: 500;
        }

        .featured-card-body h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
            line-height: 1.45;
        }

        .featured-card-body p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .read-more-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
        }

        .read-more-link:hover {
            color: var(--accent);
            gap: 10px;
        }

        .read-more-link .arrow {
            transition: var(--transition);
            font-size: 1.1rem;
        }

        .list-item-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 20px 24px;
            transition: var(--transition);
            display: flex;
            align-items: flex-start;
            gap: 20px;
        }

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

        .list-item-thumb {
            width: 140px;
            height: 90px;
            border-radius: 10px;
            background-size: cover;
            background-position: center;
            flex-shrink: 0;
        }

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

        .list-item-content .meta-row {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 6px;
            flex-wrap: wrap;
        }

        .list-item-content .date-text {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .list-item-content .cat-tag {
            font-size: 0.78rem;
            color: var(--primary);
            background: var(--primary-light);
            padding: 3px 10px;
            border-radius: 16px;
            font-weight: 500;
        }

        .list-item-content h4 {
            font-size: 1.08rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .list-item-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 8px;
        }

        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 96px;
        }

        .sidebar-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 24px;
        }

        .sidebar-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-light);
        }

        .sidebar-popular-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .sidebar-popular-list li a {
            display: flex;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-dark);
            transition: var(--transition);
            line-height: 1.5;
        }

        .sidebar-popular-list li a:hover {
            color: var(--primary);
        }

        .sidebar-popular-list .rank-num {
            font-weight: 700;
            color: var(--accent);
            font-size: 0.95rem;
            flex-shrink: 0;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-cloud a {
            font-size: 0.82rem;
            padding: 6px 14px;
            border-radius: 20px;
            background: var(--bg);
            color: var(--text-muted);
            transition: var(--transition);
            border: 1px solid var(--border);
        }

        .tag-cloud a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .related-cat-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .related-cat-list a {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 14px;
            background: var(--bg);
            border-radius: 8px;
            font-size: 0.9rem;
            color: var(--text-dark);
            transition: var(--transition);
        }

        .related-cat-list a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .related-cat-list .count-badge {
            font-size: 0.78rem;
            background: #fff;
            color: var(--text-muted);
            padding: 2px 10px;
            border-radius: 14px;
            font-weight: 500;
        }

        .pagination-section {
            padding: 24px 0;
            display: flex;
            justify-content: center;
        }

        .pagination {
            display: flex;
            gap: 8px;
            align-items: center;
            flex-wrap: wrap;
            justify-content: center;
        }

        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 42px;
            height: 42px;
            padding: 0 14px;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition);
            border: 1px solid var(--border);
            background: #fff;
            color: var(--text-dark);
        }

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

        .pagination .current {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }

        .pagination .disabled {
            color: #CBD5E0;
            cursor: not-allowed;
            background: #F7F9FC;
        }

        .cta-section {
            padding: 64px 0;
            background: var(--primary);
        }

        .cta-box {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .cta-box h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .cta-box p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.95rem;
            max-width: 540px;
            line-height: 1.7;
        }

        .site-footer {
            background: #1A1A2E;
            color: #A0AEC0;
            padding: 48px 0 24px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand .logo-text {
            color: #fff;
            margin-bottom: 12px;
            font-size: 1.25rem;
        }

        .footer-brand .logo-text span {
            color: var(--accent);
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: #A0AEC0;
            line-height: 1.7;
        }

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

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul a {
            font-size: 0.88rem;
            color: #A0AEC0;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.8rem;
            color: #A0AEC0;
        }

        .footer-bottom a {
            color: #A0AEC0;
            transition: var(--transition);
        }

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

        @media (max-width: 1024px) {
            .content-grid-layout {
                grid-template-columns: 1fr 280px;
                gap: 28px;
            }

            .nav-links {
                gap: 18px;
            }

            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

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

            .nav-links {
                display: none;
            }

            .header-cta {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .hero-esports {
                min-height: 420px;
            }

            .hero-esports h1 {
                font-size: 2rem;
            }

            .hero-esports .hero-sub {
                font-size: 1rem;
            }

            .countdown-bar {
                padding: 12px 18px;
                gap: 10px;
            }

            .countdown-num {
                font-size: 1.3rem;
            }

            .countdown-sep {
                font-size: 1.1rem;
            }

            .category-header-inner {
                flex-direction: column;
            }

            .category-stats {
                gap: 24px;
                width: 100%;
                justify-content: flex-start;
            }

            .content-grid-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .sidebar {
                position: static;
                flex-direction: column;
            }

            .list-item-card {
                flex-direction: column;
            }

            .list-item-thumb {
                width: 100%;
                height: 160px;
                border-radius: 10px;
            }

            .cta-box {
                flex-direction: column;
                text-align: left;
            }

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

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
        }

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

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

            .hero-esports {
                min-height: 380px;
            }

            .countdown-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .hero-cta-group {
                flex-direction: column;
                align-items: stretch;
            }

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

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

            .featured-card-body h3 {
                font-size: 1.15rem;
            }

            .list-item-card {
                padding: 16px 18px;
            }

            .category-header-title {
                font-size: 1.5rem;
            }

            .category-stats {
                flex-wrap: wrap;
                gap: 16px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1A6DD4;
            --primary-light: #E8F1FC;
            --primary-10: rgba(26, 109, 212, 0.10);
            --accent: #FF6A00;
            --accent-dark: #E55F00;
            --bg: #F7F9FC;
            --card-bg: #FFFFFF;
            --text-dark: #1A1A2E;
            --text-muted: #6B7280;
            --border: #E5E9F0;
            --radius: 14px;
            --radius-sm: 10px;
            --shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 6px 20px rgba(26, 109, 212, 0.10);
            --shadow-accent: 0 6px 20px rgba(255, 106, 0, 0.15);
            --font-sans: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --transition: all 0.25s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text-dark);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 1rem;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 0 rgba(0, 0, 0, 0.02);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            letter-spacing: 1px;
            box-shadow: 0 3px 8px rgba(26, 109, 212, 0.25);
        }
        .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 22px;
            list-style: none;
            flex-wrap: wrap;
        }
        .nav-links a {
            color: var(--text-dark);
            font-size: 0.92rem;
            font-weight: 500;
            position: relative;
            padding: 6px 2px;
            white-space: nowrap;
            transition: var(--transition);
        }
        .nav-links a:hover {
            color: var(--primary);
        }
        .nav-links a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 3px 10px rgba(255, 106, 0, 0.25);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(255, 106, 0, 0.32);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 2px 6px rgba(255, 106, 0, 0.2);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-10);
            color: var(--primary);
        }
        .btn-lg {
            padding: 14px 30px;
            font-size: 1.05rem;
            border-radius: 10px;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 0.875rem;
            border-radius: 8px;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
            z-index: 110;
        }
        .hamburger span {
            display: block;
            width: 28px;
            height: 3px;
            background: var(--text-dark);
            border-radius: 3px;
            transition: var(--transition);
        }
        .hamburger.open span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 20px 24px 28px;
            z-index: 99;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            max-height: calc(100vh - 72px);
            overflow-y: auto;
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu a {
            display: block;
            padding: 12px 0;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-dark);
            border-bottom: 1px solid #f0f3f7;
        }
        .mobile-menu a:last-child {
            border-bottom: none;
        }
        .mobile-menu a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .mobile-menu .btn {
            width: 100%;
            margin-top: 14px;
            padding: 14px 24px;
        }
        .category-hero {
            background: linear-gradient(135deg, #E8F1FC 0%, #F7F9FC 45%, #FFF5EE 100%);
            border-bottom: 1px solid var(--border);
            padding: 48px 0 56px;
            position: relative;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(255, 106, 0, 0.06);
            pointer-events: none;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -80px;
            width: 380px;
            height: 380px;
            border-radius: 50%;
            background: rgba(26, 109, 212, 0.05);
            pointer-events: none;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-bottom: 18px;
            position: relative;
            z-index: 1;
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: #c0c7d0;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }
        .category-hero-content {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: flex-start;
            gap: 48px;
        }
        .category-hero-text {
            flex: 1;
        }
        .category-hero-text h1 {
            font-size: 2.25rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-dark);
            margin-bottom: 14px;
        }
        .category-hero-text p {
            font-size: 1.06rem;
            color: var(--text-muted);
            max-width: 640px;
        }
        .category-hero-img {
            flex-shrink: 0;
            width: 320px;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
        }
        .category-hero-img img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .section-block {
            padding: 56px 0;
        }
        .section-block.alt {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-heading {
            margin-bottom: 36px;
        }
        .section-heading h2 {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
            line-height: 1.35;
        }
        .section-heading p {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 680px;
        }
        .game-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .game-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
            cursor: pointer;
            border: 1px solid var(--border);
        }
        .game-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }
        .game-card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--primary-light);
        }
        .game-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .game-card:hover .game-card-img img {
            transform: scale(1.04);
        }
        .game-card-body {
            padding: 16px 18px 18px;
        }
        .game-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            background: var(--primary-light);
            color: var(--primary);
            margin-bottom: 8px;
        }
        .game-tag.hot {
            background: rgba(255, 106, 0, 0.12);
            color: var(--accent-dark);
        }
        .game-card-body h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .game-card-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .content-list-layout {
            display: flex;
            gap: 32px;
            align-items: flex-start;
        }
        .content-list-main {
            flex: 1;
            min-width: 0;
        }
        .content-list-item {
            display: flex;
            gap: 20px;
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 20px;
            margin-bottom: 16px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .content-list-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }
        .content-list-item-img {
            flex-shrink: 0;
            width: 200px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--primary-light);
        }
        .content-list-item-img img {
            width: 100%;
            height: 130px;
            object-fit: cover;
        }
        .content-list-item-body {
            flex: 1;
            min-width: 0;
        }
        .content-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 6px;
        }
        .content-meta .date {
            color: #9ca3af;
        }
        .content-meta .cat-label {
            padding: 2px 10px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 500;
            background: var(--primary-light);
            color: var(--primary);
            white-space: nowrap;
        }
        .content-list-item-body h3 {
            font-size: 1.12rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .content-list-item-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .read-more-link {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: var(--transition);
        }
        .read-more-link:hover {
            color: var(--accent);
            gap: 8px;
        }
        .sidebar {
            flex-shrink: 0;
            width: 300px;
            position: sticky;
            top: 96px;
        }
        .sidebar-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 24px;
            margin-bottom: 20px;
            border: 1px solid var(--border);
        }
        .sidebar-card h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border);
        }
        .sidebar-card ul {
            list-style: none;
        }
        .sidebar-card ul li {
            margin-bottom: 10px;
        }
        .sidebar-card ul li:last-child {
            margin-bottom: 0;
        }
        .sidebar-card ul li a {
            color: var(--text-muted);
            font-size: 0.88rem;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .sidebar-card ul li a::before {
            content: '';
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }
        .sidebar-card ul li a:hover {
            color: var(--primary);
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud a {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 500;
            background: var(--bg);
            color: var(--text-muted);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .tag-cloud a:hover {
            background: var(--primary-light);
            color: var(--primary);
            border-color: var(--primary);
        }
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 28px;
            flex-wrap: wrap;
        }
        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            background: var(--card-bg);
            color: var(--text-muted);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .pagination a:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .pagination .current {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }
        .pagination .dots {
            border: none;
            background: transparent;
            color: var(--text-muted);
        }
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 24px 20px;
            text-align: center;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
            line-height: 1.2;
        }
        .stat-number.orange {
            color: var(--accent);
        }
        .stat-label {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 4px;
        }
        .stat-desc {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.5;
        }
        .process-steps {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .process-step {
            flex: 1;
            min-width: 160px;
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 24px 20px;
            text-align: center;
            border: 1px solid var(--border);
            position: relative;
        }
        .process-step .step-num {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
            margin: 0 auto 12px;
        }
        .process-step h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .process-step p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow);
            margin-bottom: 10px;
            border: 1px solid var(--border);
            overflow: hidden;
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            background: transparent;
            border: none;
            cursor: pointer;
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-dark);
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover {
            background: var(--primary-light);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            transition: var(--transition);
            font-weight: 700;
        }
        .faq-item.open .faq-question .faq-icon {
            background: var(--accent);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }
        .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.75;
            border-left: 3px solid var(--primary);
            padding-left: 14px;
        }
        .cta-section {
            padding: 56px 0;
            background: linear-gradient(135deg, var(--primary) 0%, #1558B0 100%);
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(255, 106, 0, 0.15);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -60px;
            width: 340px;
            height: 340px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }
        .cta-card {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .cta-card h2 {
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }
        .cta-card p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }
        .cta-card .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(255, 106, 0, 0.35);
            font-size: 1.05rem;
            padding: 14px 36px;
        }
        .cta-card .btn-primary:hover {
            background: #FF7A45;
            transform: translateY(-2px);
        }
        .site-footer {
            background: #1A1A2E;
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 24px;
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .footer-top {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }
        .footer-brand {
            flex: 1.5;
            min-width: 260px;
        }
        .footer-brand .logo-text {
            color: #fff;
            margin-bottom: 12px;
            display: inline-block;
        }
        .footer-brand p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.875rem;
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-col {
            flex: 1;
            min-width: 150px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.875rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px 24px;
            align-items: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.65);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        @media (max-width: 1080px) {
            .nav-links {
                gap: 16px;
            }
            .nav-links a {
                font-size: 0.85rem;
            }
            .game-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .content-list-layout {
                flex-direction: column;
            }
            .sidebar {
                width: 100%;
                position: static;
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .sidebar-card {
                margin-bottom: 0;
            }
            .stats-row {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
            .nav-links {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .header-inner {
                height: 64px;
            }
            .mobile-menu {
                top: 64px;
            }
            .category-hero {
                padding: 36px 0 44px;
            }
            .category-hero-content {
                flex-direction: column;
                gap: 24px;
            }
            .category-hero-img {
                width: 100%;
            }
            .category-hero-img img {
                height: 180px;
            }
            .category-hero-text h1 {
                font-size: 1.75rem;
            }
            .game-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .content-list-item {
                flex-direction: column;
                gap: 14px;
            }
            .content-list-item-img {
                width: 100%;
            }
            .content-list-item-img img {
                height: 160px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .process-steps {
                flex-direction: column;
            }
            .pagination a,
            .pagination span {
                width: 36px;
                height: 36px;
                font-size: 0.82rem;
            }
            .section-block {
                padding: 40px 0;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .footer-top {
                gap: 24px;
            }
            .footer-brand,
            .footer-col {
                flex: 1 1 100%;
                min-width: 100%;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .header-cta .btn-outline {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .game-grid {
                grid-template-columns: 1fr;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
            }
            .category-hero-text h1 {
                font-size: 1.5rem;
            }
            .category-hero-text p {
                font-size: 0.95rem;
            }
            .section-heading h2 {
                font-size: 1.4rem;
            }
        }

/* 追加本页特有样式：无 */
        /* 所有视觉样式已于 <head> 中完整定义，此处不重复覆盖 */
        .mobile-menu .btn-primary {
            margin: 12px 16px 16px;
            text-align: center;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            border-radius: var(--radius-sm);
            padding: 14px 20px;
            box-shadow: 0 3px 10px rgba(255, 106, 0, 0.25);
        }
        .mobile-menu .btn-primary:hover {
            background: var(--accent-dark);
            color: #fff;
        }

/* roulang page: category2 */
:root {
  --primary: #1A6DD4;
  --primary-light: #E8F1FC;
  --primary-10: rgba(26, 109, 212, 0.10);
  --accent: #FF6A00;
  --accent-dark: #E55F00;
  --bg: #F7F9FC;
  --card-bg: #FFFFFF;
  --text-dark: #1A1A2E;
  --text-muted: #6B7280;
  --border: #E5E9F0;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 6px 20px rgba(26, 109, 212, 0.10);
  --font-sans: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
  --transition: all 0.25s ease;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg);
  color: var(--text-dark);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

button,
input,
textarea {
  font-family: var(--font-sans);
  font-size: 1rem;
  outline: none;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}

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

.logo-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 1px;
}

.logo-text {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-dark);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.logo-text span {
  color: var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--text-dark);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding: 6px 2px;
  white-space: nowrap;
  transition: var(--transition);
}

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

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

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  white-space: nowrap;
  letter-spacing: 0.3px;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 3px 10px rgba(255, 106, 0, 0.25);
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(255, 106, 0, 0.32);
  color: #fff;
}

.btn-primary:active {
  transform: translateY(1px);
  box-shadow: 0 2px 6px rgba(255, 106, 0, 0.2);
}

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

.btn-outline:hover {
  background: var(--primary-10);
  color: var(--primary);
}

.btn-lg {
  padding: 14px 30px;
  font-size: 1.05rem;
  border-radius: 10px;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
  border-radius: 8px;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 110;
}

.hamburger span {
  display: block;
  width: 28px;
  height: 3px;
  background: var(--text-dark);
  border-radius: 3px;
  transition: var(--transition);
}

.hamburger.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

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

.hamburger.open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

@media (max-width: 1024px) {
  .nav-links {
    gap: 16px;
  }
  .nav-links a {
    font-size: 0.875rem;
  }
  .header-cta .btn-outline {
    display: none;
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }
  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    gap: 0;
    padding: 12px 20px 20px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    display: none;
    align-items: flex-start;
  }
  .nav-links.open {
    display: flex;
  }
  .nav-links a {
    width: 100%;
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
  }
  .nav-links a.active::after {
    display: none;
  }
  .header-cta {
    gap: 8px;
  }
  .header-cta .btn-lg {
    padding: 10px 18px;
    font-size: 0.875rem;
  }
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  flex-wrap: wrap;
}

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

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

.breadcrumb .sep {
  color: #B0B8C4;
}

.category-hero {
  position: relative;
  background: linear-gradient(135deg, #0F172A 0%, #1A3D6E 50%, #1A6DD4 100%);
  padding: 72px 0 80px;
  overflow: hidden;
  margin-bottom: 0;
}

.category-hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255,106,0,0.25) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.category-hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -8%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(26,109,212,0.4) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  color: #fff;
  padding: 6px 16px;
  border-radius: 30px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 20px;
  backdrop-filter: blur(4px);
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

.category-hero h1 {
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.3;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
  max-width: 700px;
}

.category-hero p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.85);
  max-width: 560px;
  margin-bottom: 28px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.hero-stat .num {
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}

.hero-stat .label {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.7);
}

.section {
  padding: 72px 0;
}

@media (max-width: 768px) {
  .section {
    padding: 48px 0;
  }
  .category-hero {
    padding: 48px 0 56px;
  }
  .category-hero h1 {
    font-size: 1.8rem;
  }
  .category-hero p {
    font-size: 1rem;
  }
  .hero-stats {
    gap: 20px;
  }
  .hero-stat .num {
    font-size: 1.5rem;
  }
}

.section-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.35;
  margin-bottom: 8px;
}

.section-sub {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 600px;
  line-height: 1.7;
  margin-bottom: 36px;
}

.card-grid-asym {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
}

@media (max-width: 768px) {
  .card-grid-asym {
    grid-template-columns: 1fr;
  }
}

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

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

.content-card .card-img {
  height: 200px;
  overflow: hidden;
  background: #f0f4f9;
  position: relative;
}

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

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

.content-card .card-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 6px;
  letter-spacing: 0.3px;
}

.content-card .card-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.75rem;
  padding: 2px 10px;
  border-radius: 4px;
  font-weight: 500;
  margin-bottom: 8px;
  align-self: flex-start;
}

.content-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 8px;
  color: var(--text-dark);
}

.content-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 12px;
}

.content-card .read-more {
  color: var(--primary);
  font-weight: 500;
  font-size: 0.9rem;
  align-self: flex-start;
  position: relative;
}

.content-card .read-more:hover {
  color: var(--accent);
  text-decoration: underline;
}

.list-item {
  background: var(--card-bg);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  box-shadow: var(--shadow);
  display: flex;
  gap: 16px;
  transition: var(--transition);
  margin-bottom: 12px;
  align-items: flex-start;
}

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

.list-item .thumb {
  width: 80px;
  height: 60px;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
  background: #f0f4f9;
}

.list-item .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.list-item .item-content {
  flex: 1;
}

.list-item .item-date {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.list-item h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
  line-height: 1.5;
  color: var(--text-dark);
}

.list-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 6px;
}

.list-item .item-tag {
  font-size: 0.72rem;
  color: var(--primary);
  font-weight: 500;
}

.eco-feature-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-top: 4px solid var(--primary);
}

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

.eco-feature-card .feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.eco-feature-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-dark);
}

.eco-feature-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

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

@media (max-width: 768px) {
  .feature-grid-3 {
    grid-template-columns: 1fr;
  }
}

.stats-board {
  background: linear-gradient(135deg, #0F172A 0%, #1A3D6E 100%);
  border-radius: var(--radius);
  padding: 48px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

@media (max-width: 1024px) {
  .stats-board {
    grid-template-columns: repeat(2, 1fr);
    padding: 32px;
  }
}

@media (max-width: 520px) {
  .stats-board {
    grid-template-columns: 1fr 1fr;
    padding: 24px;
    gap: 20px;
  }
}

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

.stat-item .stat-num {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
}

.stat-item .stat-label {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.75);
  margin-top: 4px;
}

.stat-item .stat-desc {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.55);
  margin-top: 2px;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

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

.scenario-item {
  background: var(--card-bg);
  border-radius: var(--radius-sm);
  padding: 24px;
  box-shadow: var(--shadow);
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: var(--transition);
}

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

.scenario-item .scenario-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary-10);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.scenario-item h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 4px;
}

.scenario-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.step-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  position: relative;
}

@media (max-width: 768px) {
  .step-flow {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 520px) {
  .step-flow {
    grid-template-columns: 1fr;
  }
}

.step-item {
  text-align: center;
  position: relative;
  padding: 28px 16px;
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.step-item .step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  margin: 0 auto 12px;
}

.step-item h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 6px;
}

.step-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.deep-content {
  background: #fff;
  border-radius: var(--radius);
  padding: 48px;
  box-shadow: var(--shadow);
}

@media (max-width: 768px) {
  .deep-content {
    padding: 28px 20px;
  }
}

.deep-content h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 20px;
  line-height: 1.5;
}

.deep-content p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 16px;
}

.deep-content .highlight {
  color: var(--primary);
  font-weight: 500;
}

.faq-wrapper {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--card-bg);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.active {
  border-left: 4px solid var(--primary);
}

.faq-question {
  width: 100%;
  background: transparent;
  border: none;
  text-align: left;
  padding: 20px 24px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-dark);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: var(--transition);
}

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

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

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 24px 20px;
}

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

.cta-section {
  background: linear-gradient(135deg, #1A6DD4 0%, #0F172A 100%);
  border-radius: var(--radius);
  padding: 56px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255,106,0,0.3) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.cta-section h2 {
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  position: relative;
  z-index: 2;
}

.cta-section p {
  font-size: 1rem;
  color: rgba(255,255,255,0.8);
  max-width: 500px;
  margin: 0 auto 28px;
  line-height: 1.7;
  position: relative;
  z-index: 2;
}

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

.sidebar-widget {
  background: var(--card-bg);
  border-radius: var(--radius-sm);
  padding: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 20px;
}

.sidebar-widget h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--primary-light);
}

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

.sidebar-widget ul li {
  margin-bottom: 8px;
}

.sidebar-widget ul li a {
  font-size: 0.875rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.sidebar-widget ul li a:hover {
  color: var(--primary);
}

.sidebar-widget ul li a::before {
  content: '›';
  color: var(--primary);
  font-weight: 700;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-cloud a {
  display: inline-block;
  padding: 4px 12px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 30px;
  font-size: 0.78rem;
  font-weight: 500;
  transition: var(--transition);
}

.tag-cloud a:hover {
  background: var(--primary);
  color: #fff;
}

.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 32px;
}

.pagination a,
.pagination span {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-size: 0.9rem;
  transition: var(--transition);
  background: var(--card-bg);
  color: var(--text-muted);
  box-shadow: var(--shadow);
}

.pagination a:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.pagination .current {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
}

.site-footer {
  background: #1A1A2E;
  color: rgba(255,255,255,0.8);
  padding: 60px 0 24px;
  margin-top: 72px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

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

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

.footer-brand .logo-text {
  color: #fff;
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.footer-brand .logo-text span {
  color: var(--primary);
}

.footer-brand p {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.7;
  max-width: 280px;
}

.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 14px;
}

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

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

.footer-col ul li a {
  color: rgba(255,255,255,0.65);
  font-size: 0.875rem;
  transition: var(--transition);
}

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

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.15);
  font-size: 0.8rem;
  color: rgba(255,255,255,0.55);
}

.footer-bottom a {
  color: rgba(255,255,255,0.65);
}

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

@media (max-width: 768px) {
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}

.page-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 32px;
  align-items: start;
}

@media (max-width: 1024px) {
  .page-grid {
    grid-template-columns: 1fr;
  }
  .page-sidebar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .page-sidebar {
    grid-template-columns: 1fr;
  }
}

.eco-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.eco-table thead {
  background: var(--primary-light);
}

.eco-table th {
  padding: 14px 20px;
  text-align: left;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
}

.eco-table td {
  padding: 14px 20px;
  font-size: 0.9rem;
  color: var(--text-dark);
  border-top: 1px solid var(--border);
}

.eco-table tr:hover td {
  background: #FAFBFC;
}

@media (max-width: 768px) {
  .eco-table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
}

/* roulang page: category4 */
:root {
            --primary: #1A6DD4;
            --primary-light: #E8F1FC;
            --primary-10: rgba(26, 109, 212, 0.10);
            --accent: #FF6A00;
            --accent-dark: #E55F00;
            --bg: #F7F9FC;
            --card-bg: #FFFFFF;
            --text-dark: #1A1A2E;
            --text-muted: #6B7280;
            --border: #E5E9F0;
            --radius: 14px;
            --radius-sm: 10px;
            --shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 6px 20px rgba(26, 109, 212, 0.10);
            --font-sans: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --transition: all 0.25s ease;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text-dark);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button,
        input,
        textarea {
            font-family: var(--font-sans);
            font-size: 1rem;
            outline: none;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

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

        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 20px;
            letter-spacing: 1px;
        }

        .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            flex-wrap: wrap;
        }

        .nav-links a {
            color: var(--text-dark);
            font-size: 0.95rem;
            font-weight: 500;
            position: relative;
            padding: 6px 2px;
            white-space: nowrap;
            transition: var(--transition);
        }

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

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

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 3px 10px rgba(255, 106, 0, 0.25);
        }

        .btn-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(255, 106, 0, 0.32);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 2px 6px rgba(255, 106, 0, 0.2);
        }

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

        .btn-outline:hover {
            background: var(--primary-10);
            color: var(--primary);
        }

        .btn-lg {
            padding: 14px 30px;
            font-size: 1.05rem;
            border-radius: 10px;
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 0.875rem;
            border-radius: 8px;
        }

        .btn-disabled {
            background: #D1D5DB;
            color: #fff;
            cursor: not-allowed;
            box-shadow: none;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
            z-index: 110;
        }

        .hamburger span {
            display: block;
            width: 28px;
            height: 3px;
            background: var(--text-dark);
            border-radius: 3px;
            transition: var(--transition);
        }

        .hamburger.open span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }

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

        .hamburger.open span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 16px 24px;
            z-index: 99;
            flex-direction: column;
            gap: 8px;
        }

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

        .mobile-menu a {
            color: var(--text-dark);
            font-size: 1rem;
            font-weight: 500;
            padding: 10px 12px;
            border-radius: 8px;
            transition: var(--transition);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: var(--primary-light);
            color: var(--primary);
        }

        .mobile-menu .btn {
            margin-top: 8px;
            width: 100%;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-bottom: 12px;
            flex-wrap: wrap;
        }

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

        .breadcrumb .separator {
            color: var(--border);
        }

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

        .section-badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: 1px;
        }

        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.35;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.75;
            max-width: 680px;
        }

        .card-hover {
            transition: var(--transition);
            cursor: default;
        }

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

        .stat-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }

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

        .stat-desc {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

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

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

        .faq-question:hover {
            background: var(--bg);
        }

        .faq-question .icon {
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.2rem;
            flex-shrink: 0;
            transition: var(--transition);
        }

        .faq-answer {
            display: none;
            padding: 0 24px 20px;
            color: var(--text-muted);
            line-height: 1.75;
            font-size: 0.95rem;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

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

        .faq-item.active {
            border-left: 3px solid var(--primary);
        }

        .timeline-item {
            position: relative;
            padding-left: 32px;
            padding-bottom: 32px;
            border-left: 2px solid var(--border);
            margin-left: 12px;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -7px;
            top: 4px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 0 4px var(--primary-light);
        }

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

        .site-footer {
            background: #1A1A2E;
            color: #fff;
            padding: 48px 0 24px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1fr 1.2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            line-height: 1.75;
            margin-top: 16px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.875rem;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.55);
            align-items: center;
        }

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

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

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag {
            display: inline-block;
            padding: 6px 14px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            transition: var(--transition);
            cursor: default;
        }

        .tag:hover {
            background: var(--primary);
            color: #fff;
        }

        .danmu-bubble {
            position: relative;
            background: var(--card-bg);
            border-radius: 12px;
            padding: 16px 20px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            font-size: 0.9rem;
            line-height: 1.6;
            transition: var(--transition);
        }

        .danmu-bubble:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }

        .danmu-bubble .user {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.8rem;
            display: block;
            margin-bottom: 4px;
        }

        .danmu-bubble .time {
            color: var(--text-muted);
            font-size: 0.75rem;
            display: block;
            margin-top: 6px;
        }

        .hero-danmu {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            background-size: cover;
            background-position: center;
        }

        .hero-danmu::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(to right, rgba(255, 255, 255, 0.95) 30%, rgba(255, 255, 255, 0.6) 60%, rgba(255, 255, 255, 0.3) 100%);
            z-index: 1;
        }

        .hero-danmu .hero-content {
            position: relative;
            z-index: 2;
            padding: 80px 48px;
        }

        @media (max-width: 1024px) {
            .container {
                padding: 0 24px;
            }
            .nav-links {
                gap: 16px;
            }
            .nav-links a {
                font-size: 0.85rem;
            }
            .hero-danmu .hero-content {
                padding: 56px 32px;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .nav-links {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .header-cta .btn-outline {
                display: none;
            }
            .header-inner {
                height: 60px;
            }
            .hero-danmu .hero-content {
                padding: 40px 20px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                align-items: flex-start;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-answer {
                padding: 0 16px 16px;
                font-size: 0.85rem;
            }
        }

        @media (max-width: 520px) {
            .logo-text {
                font-size: 1.1rem;
            }
            .header-cta .btn {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .hero-danmu .hero-content {
                padding: 28px 16px;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .btn-lg {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            .danmu-bubble {
                padding: 12px 14px;
                font-size: 0.8rem;
            }
            .timeline-item {
                padding-left: 24px;
                font-size: 0.85rem;
            }
        }

        @media (max-width: 375px) {
            .container {
                padding: 0 12px;
            }
            .header-inner {
                gap: 8px;
            }
            .header-cta {
                gap: 6px;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }
            .logo-text {
                font-size: 1rem;
            }
            .hero-danmu .hero-content {
                padding: 20px 12px;
            }
            .section-title {
                font-size: 1.15rem;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1A6DD4;
            --primary-light: #E8F1FC;
            --primary-10: rgba(26, 109, 212, 0.10);
            --accent: #FF6A00;
            --accent-dark: #E55F00;
            --bg: #F7F9FC;
            --card-bg: #FFFFFF;
            --text-dark: #1A1A2E;
            --text-muted: #6B7280;
            --border: #E5E9F0;
            --radius: 14px;
            --radius-sm: 10px;
            --shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 6px 20px rgba(26, 109, 212, 0.10);
            --font-sans: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --transition: all 0.25s ease;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text-dark);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

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

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

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

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

        button,
        input,
        textarea {
            font-family: var(--font-sans);
            font-size: 1rem;
            outline: none;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

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

        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 20px;
            letter-spacing: 1px;
        }

        .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
            flex-wrap: wrap;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            color: var(--text-dark);
            font-size: 0.95rem;
            font-weight: 500;
            position: relative;
            padding: 6px 2px;
            white-space: nowrap;
            transition: var(--transition);
        }

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

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

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            white-space: nowrap;
            letter-spacing: 0.3px;
            line-height: 1.4;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 3px 10px rgba(255, 106, 0, 0.25);
        }

        .btn-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(255, 106, 0, 0.32);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 2px 6px rgba(255, 106, 0, 0.2);
        }

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

        .btn-outline:hover {
            background: var(--primary-10);
            color: var(--primary);
        }

        .btn-lg {
            padding: 14px 30px;
            font-size: 1.05rem;
            border-radius: 10px;
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 0.875rem;
            border-radius: 8px;
        }

        .btn-disabled {
            background: #D1D5DB;
            color: #fff;
            cursor: not-allowed;
            box-shadow: none;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
            z-index: 110;
        }

        .hamburger span {
            display: block;
            width: 28px;
            height: 3px;
            background: var(--text-dark);
            border-radius: 3px;
            transition: var(--transition);
        }

        .hamburger.open span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }

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

        .hamburger.open span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        /* ========== 分类 Banner ========== */
        .category-banner {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 64px 0 56px;
            min-height: 260px;
            display: flex;
            align-items: center;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.92) 0%, rgba(247, 249, 252, 0.88) 45%, rgba(26, 109, 212, 0.12) 100%);
            z-index: 1;
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--primary);
            font-weight: 500;
        }

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

        .breadcrumb .separator {
            color: #9CA3AF;
            user-select: none;
        }

        .category-banner h1 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 12px;
            line-height: 1.3;
            letter-spacing: 0.5px;
        }

        .category-banner .banner-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.7;
            margin: 0;
        }

        /* ========== 技术数据指标 ========== */
        .tech-metrics {
            padding: 48px 0 40px;
        }

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

        .metric-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 24px 20px;
            box-shadow: var(--shadow);
            text-align: center;
            transition: var(--transition);
            border: 1px solid var(--border);
        }

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

        .metric-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .metric-label {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 4px;
        }

        .metric-note {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ========== 内容列表区 ========== */
        .content-section {
            padding: 40px 0 56px;
        }

        .content-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 32px;
            align-items: start;
        }

        .section-heading {
            margin-bottom: 28px;
        }

        .section-heading h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px;
            line-height: 1.35;
        }

        .section-heading p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
        }

        .content-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .content-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border);
        }

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

        .content-card.featured {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            min-height: 240px;
        }

        .content-card.featured .card-image {
            height: 100%;
            min-height: 240px;
        }

        .content-card .card-image {
            position: relative;
            overflow: hidden;
            background: #E8F1FC;
        }

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

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

        .content-card .card-body {
            padding: 20px 24px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .content-card .card-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }

        .content-card .card-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 20px;
            margin-bottom: 8px;
            width: fit-content;
        }

        .content-card .card-title {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 8px;
            line-height: 1.45;
        }

        .content-card .card-summary {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 12px;
            flex-grow: 1;
        }

        .content-card .card-link {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: var(--transition);
        }

        .content-card .card-link:hover {
            color: var(--accent);
            gap: 8px;
        }

        /* 列表式内容项 */
        .content-list-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 16px 20px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .content-list-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateX(4px);
        }

        .content-list-item .item-number {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-10);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
        }

        .content-list-item .item-content {
            flex: 1;
        }

        .content-list-item .item-date {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 4px;
        }

        .content-list-item .item-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 6px;
            line-height: 1.45;
        }

        .content-list-item .item-summary {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== 侧边栏 ========== */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 96px;
        }

        .sidebar-widget {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 20px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }

        .sidebar-widget h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 14px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-light);
            line-height: 1.4;
        }

        .sidebar-widget ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .sidebar-widget ul li a {
            font-size: 0.9rem;
            color: var(--text-dark);
            line-height: 1.5;
            transition: var(--transition);
            display: block;
        }

        .sidebar-widget ul li a:hover {
            color: var(--primary);
            padding-left: 6px;
        }

        .sidebar-widget ul li a .widget-date {
            font-size: 0.75rem;
            color: var(--text-muted);
            display: block;
            margin-top: 2px;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-cloud a {
            display: inline-block;
            background: var(--bg);
            color: var(--text-muted);
            font-size: 0.8rem;
            padding: 5px 12px;
            border-radius: 20px;
            transition: var(--transition);
            border: 1px solid var(--border);
        }

        .tag-cloud a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* ========== 分页 ========== */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 24px 0 8px;
        }

        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 12px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition);
            border: 1px solid var(--border);
            background: var(--card-bg);
            color: var(--text-dark);
        }

        .pagination a:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        .pagination span.current {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .pagination span.dots {
            border: none;
            background: transparent;
            color: var(--text-muted);
        }

        .pagination .prev-next {
            padding: 0 16px;
            font-weight: 600;
        }

        /* ========== 技术流程 ========== */
        .tech-process {
            padding: 48px 0 56px;
            background: var(--card-bg);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 28px;
        }

        .process-step {
            text-align: center;
            padding: 24px 16px;
            border-radius: var(--radius);
            background: var(--bg);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

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

        .process-step .step-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            margin: 0 auto 12px;
        }

        .process-step h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 6px;
        }

        .process-step p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 56px 0;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 24px;
        }

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

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

        .faq-item.active {
            border-left: 3px solid var(--primary);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            background: transparent;
            border: none;
            cursor: pointer;
            text-align: left;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            transition: var(--transition);
            gap: 12px;
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary-10);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
            transition: var(--transition);
            line-height: 1;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.25s ease;
            padding: 0 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px;
        }

        .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.75;
            margin: 0;
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 48px 0 56px;
        }

        .cta-box {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 40px 32px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-box h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 10px;
        }

        .cta-box p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin: 0 0 20px;
            line-height: 1.7;
        }

        .cta-box .cta-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #1A1A2E;
            color: #B8BCC8;
            padding: 48px 0 24px;
            margin-top: 32px;
        }

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

        .site-footer .footer-brand .logo-text {
            color: #fff;
            font-size: 1.4rem;
            margin-bottom: 12px;
            display: inline-block;
        }

        .site-footer .footer-brand .logo-text span {
            color: var(--accent);
        }

        .site-footer .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.7;
            color: #9CA3AF;
            max-width: 320px;
            margin: 0;
        }

        .site-footer .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin: 0 0 14px;
            letter-spacing: 0.5px;
        }

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

        .site-footer .footer-col ul li a {
            font-size: 0.85rem;
            color: #B8BCC8;
            transition: var(--transition);
        }

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

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.8rem;
            color: #9CA3AF;
        }

        .site-footer .footer-bottom a {
            color: #B8BCC8;
            text-decoration: none;
        }

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

        .site-footer .footer-bottom span {
            white-space: nowrap;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .content-layout {
                grid-template-columns: 1fr;
            }

            .sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }

            .sidebar-widget {
                flex: 1;
                min-width: 250px;
            }

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

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

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

            .header-inner {
                height: 60px;
                gap: 12px;
            }

            .nav-links {
                display: none;
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 20px 16px;
                gap: 8px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
                z-index: 99;
                align-items: stretch;
            }

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

            .nav-links a {
                padding: 12px 16px;
                border-radius: 8px;
                font-size: 1rem;
            }

            .nav-links a.active {
                background: var(--primary-light);
            }

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

            .hamburger {
                display: flex;
            }

            .header-cta .btn-outline {
                display: none;
            }

            .header-cta .btn-primary {
                padding: 10px 16px;
                font-size: 0.85rem;
            }

            .category-banner {
                padding: 40px 0 36px;
                min-height: 200px;
            }

            .category-banner h1 {
                font-size: 1.6rem;
            }

            .category-banner .banner-desc {
                font-size: 0.95rem;
            }

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

            .metric-card {
                padding: 16px 12px;
            }

            .metric-number {
                font-size: 1.6rem;
            }

            .content-card.featured {
                grid-template-columns: 1fr;
            }

            .content-card.featured .card-image {
                min-height: 180px;
                max-height: 220px;
            }

            .content-card .card-body {
                padding: 16px;
            }

            .content-list-item {
                flex-direction: column;
                gap: 10px;
                padding: 14px 16px;
            }

            .process-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .process-step {
                padding: 16px 12px;
            }

            .faq-question {
                font-size: 0.92rem;
                padding: 14px 16px;
            }

            .cta-box {
                padding: 28px 20px;
            }

            .cta-box h2 {
                font-size: 1.25rem;
            }

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

            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                font-size: 0.75rem;
            }
        }

        @media (max-width: 520px) {
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .metric-number {
                font-size: 1.4rem;
            }

            .metric-label {
                font-size: 0.85rem;
            }

            .metric-note {
                font-size: 0.75rem;
            }

            .content-card .card-title {
                font-size: 1rem;
            }

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

            .pagination a,
            .pagination span {
                min-width: 32px;
                height: 36px;
                padding: 0 8px;
                font-size: 0.8rem;
            }

            .cta-actions {
                flex-direction: column;
                width: 100%;
            }

            .cta-actions .btn {
                width: 100%;
            }

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

/* roulang page: category6 */
:root {
            --primary: #1A6DD4;
            --primary-light: #E8F1FC;
            --primary-10: rgba(26, 109, 212, 0.10);
            --accent: #FF6A00;
            --accent-dark: #E55F00;
            --bg: #F7F9FC;
            --card-bg: #FFFFFF;
            --text-dark: #1A1A2E;
            --text-muted: #6B7280;
            --border: #E5E9F0;
            --radius: 14px;
            --radius-sm: 10px;
            --shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 6px 20px rgba(26, 109, 212, 0.10);
            --font-sans: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --transition: all 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text-dark);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }
        * {
            box-sizing: border-box;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 1rem;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 24px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 20px;
            letter-spacing: 1px;
        }
        .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            flex-wrap: wrap;
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            color: var(--text-dark);
            font-size: 0.95rem;
            font-weight: 500;
            position: relative;
            padding: 6px 2px;
            white-space: nowrap;
            transition: var(--transition);
        }
        .nav-links a:hover {
            color: var(--primary);
        }
        .nav-links a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 3px 10px rgba(255, 106, 0, 0.25);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(255, 106, 0, 0.32);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 2px 6px rgba(255, 106, 0, 0.2);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-10);
            color: var(--primary);
        }
        .btn-lg {
            padding: 14px 30px;
            font-size: 1.05rem;
            border-radius: 10px;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 0.875rem;
            border-radius: 8px;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
            z-index: 110;
        }
        .hamburger span {
            display: block;
            width: 28px;
            height: 3px;
            background: var(--text-dark);
            border-radius: 3px;
            transition: var(--transition);
        }
        .hamburger.open span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        /* Category Page Specific Styles */
        .breadcrumb-bar {
            background: var(--card-bg);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: #D1D5DB;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }
        .category-hero {
            background: linear-gradient(135deg, #F7F9FC 0%, #E8F1FC 55%, #FDF3EA 100%);
            padding: 56px 0 48px;
            position: relative;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -80px;
            width: 380px;
            height: 380px;
            border-radius: 50%;
            background: rgba(26, 109, 212, 0.06);
            pointer-events: none;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -40px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255, 106, 0, 0.05);
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 1;
        }
        .category-hero h1 {
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-dark);
            margin: 0 0 16px;
        }
        .category-hero .hero-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.8;
        }
        .category-hero .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }
        .hero-tag {
            display: inline-block;
            padding: 6px 14px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 50px;
            font-size: 0.82rem;
            color: var(--text-dark);
            font-weight: 500;
            transition: var(--transition);
        }
        .hero-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        /* Stats Bar */
        .stats-bar {
            padding: 0 0 40px;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 24px 22px;
            text-align: center;
            transition: var(--transition);
            border: 1px solid var(--border);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .stat-card .stat-num {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-card .stat-label {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-top: 6px;
        }
        .stat-card .stat-desc {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 4px;
            line-height: 1.5;
        }

        /* Featured Events */
        .featured-events {
            padding: 24px 0 48px;
        }
        .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px;
            line-height: 1.35;
        }
        .section-subtitle {
            font-size: 0.98rem;
            color: var(--text-muted);
            margin: 0 0 32px;
            line-height: 1.7;
        }
        .events-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 24px;
        }
        .event-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
        }
        .event-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .event-card .event-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .event-card .event-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .event-card:hover .event-img img {
            transform: scale(1.04);
        }
        .event-card .event-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .event-card .event-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            background: var(--primary-light);
            color: var(--primary);
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .event-card .event-tag.orange {
            background: rgba(255, 106, 0, 0.1);
            color: var(--accent);
        }
        .event-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px;
            line-height: 1.45;
        }
        .event-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 16px;
            flex: 1;
        }
        .event-card .event-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
            align-self: flex-start;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .event-card .event-link:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        /* Content List Section */
        .content-list-section {
            padding: 32px 0 56px;
        }
        .content-list-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 32px;
        }
        .list-items {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .list-item {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 20px 24px;
            border: 1px solid var(--border);
            transition: var(--transition);
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }
        .list-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .list-item .item-thumb {
            width: 130px;
            height: 90px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
        }
        .list-item .item-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .list-item .item-content {
            flex: 1;
        }
        .list-item .item-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 6px;
            flex-wrap: wrap;
        }
        .list-item .item-date {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .list-item .item-cat {
            font-size: 0.75rem;
            color: var(--primary);
            background: var(--primary-light);
            padding: 2px 10px;
            border-radius: 50px;
            font-weight: 500;
        }
        .list-item h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 6px;
            line-height: 1.45;
        }
        .list-item p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 10px;
        }
        .list-item .read-more {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .list-item .read-more:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        .list-item.no-thumb {
            padding: 18px 24px;
        }

        /* Pagination */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 32px;
            flex-wrap: wrap;
        }
        .pagination .page-btn {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            background: var(--card-bg);
            color: var(--text-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 500;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .pagination .page-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .pagination .page-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .pagination .page-btn.prev,
        .pagination .page-btn.next {
            width: auto;
            padding: 0 16px;
        }

        /* Sidebar */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .sidebar-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 22px;
            border: 1px solid var(--border);
        }
        .sidebar-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-light);
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .sidebar-card ul li a {
            color: var(--text-dark);
            font-size: 0.88rem;
            line-height: 1.6;
            display: block;
            padding: 6px 10px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .sidebar-card ul li a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .sidebar-card .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-card .tag-list a {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 50px;
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--text-muted);
            font-size: 0.78rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .sidebar-card .tag-list a:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        /* Community Features */
        .community-features {
            padding: 48px 0;
            background: linear-gradient(180deg, var(--bg) 0%, #EFF4FA 100%);
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-item {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 28px 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .feature-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .feature-item .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .feature-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px;
        }
        .feature-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* User Voices */
        .user-voices {
            padding: 48px 0;
        }
        .voices-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .voice-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
        }
        .voice-card .voice-text {
            font-size: 0.92rem;
            color: var(--text-dark);
            line-height: 1.8;
            margin: 0 0 16px;
            position: relative;
            padding-left: 18px;
        }
        .voice-card .voice-text::before {
            content: '"';
            font-size: 2rem;
            color: var(--primary);
            position: absolute;
            left: 0;
            top: -4px;
            font-weight: 700;
            line-height: 1;
            opacity: 0.5;
        }
        .voice-card .voice-author {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .voice-card .voice-author .avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 0.9rem;
        }

        /* FAQ */
        .faq-section {
            padding: 48px 0 56px;
            background: #F0F4FA;
        }
        .faq-wrapper {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item.open {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-dark);
            transition: var(--transition);
            user-select: none;
            gap: 12px;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-sans);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 20px;
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        /* CTA Section */
        .cta-section {
            padding: 56px 0 64px;
            background: linear-gradient(135deg, #1A6DD4 0%, #1659B0 60%, #1A6DD4 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -40px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 106, 0, 0.1);
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
            line-height: 1.35;
        }
        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .cta-section .cta-btns {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .cta-section .btn-primary {
            background: var(--accent);
            box-shadow: 0 4px 14px rgba(255, 106, 0, 0.4);
        }
        .cta-section .btn-primary:hover {
            background: var(--accent-dark);
            box-shadow: 0 6px 22px rgba(255, 106, 0, 0.5);
            transform: translateY(-2px);
        }
        .cta-section .btn-outline {
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
            background: transparent;
        }
        .cta-section .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
        }

        /* Footer */
        .site-footer {
            background: #1A1A2E;
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 24px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand .logo-text {
            color: #fff;
            font-size: 1.4rem;
            margin-bottom: 14px;
        }
        .footer-brand .logo-text span {
            color: #FF6A00;
        }
        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            margin: 0;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin: 0 0 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.85rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: #FF6A00;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            padding-top: 20px;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.78rem;
        }
        .footer-bottom a:hover {
            color: #FF6A00;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .events-grid {
                grid-template-columns: 1fr 1fr;
            }
            .events-grid .event-card:first-child {
                grid-column: span 2;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .content-list-layout {
                grid-template-columns: 1fr;
            }
            .sidebar {
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
                gap: 16px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                gap: 0;
                padding: 16px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
                z-index: 99;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 12px 4px;
                font-size: 1rem;
                border-bottom: 1px solid var(--border);
                width: 100%;
            }
            .nav-links a:last-child {
                border-bottom: none;
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-links a.active {
                background: var(--primary-light);
                border-radius: 8px;
                padding-left: 12px;
            }
            .hamburger {
                display: flex;
            }
            .header-cta .btn-outline {
                display: none;
            }
            .header-cta .btn-primary {
                padding: 8px 16px;
                font-size: 0.85rem;
            }
            .category-hero h1 {
                font-size: 1.7rem;
            }
            .events-grid {
                grid-template-columns: 1fr;
            }
            .events-grid .event-card:first-child {
                grid-column: span 1;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .voices-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .list-item {
                flex-direction: column;
            }
            .list-item .item-thumb {
                width: 100%;
                height: 160px;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 16px 12px;
            }
            .stat-card .stat-num {
                font-size: 1.6rem;
            }
            .category-hero {
                padding: 36px 0 32px;
            }
            .category-hero h1 {
                font-size: 1.4rem;
            }
            .category-hero .hero-desc {
                font-size: 0.92rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .events-grid {
                gap: 14px;
            }
            .event-card .event-img {
                height: 140px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cta-section {
                padding: 40px 0 48px;
            }
            .cta-section h2 {
                font-size: 1.2rem;
            }
            .pagination .page-btn {
                width: 34px;
                height: 34px;
                font-size: 0.8rem;
            }
        }

/* roulang page: category7 */
:root {
            --primary: #1A6DD4;
            --primary-light: #E8F1FC;
            --primary-10: rgba(26, 109, 212, 0.10);
            --accent: #FF6A00;
            --accent-dark: #E55F00;
            --bg: #F7F9FC;
            --card-bg: #FFFFFF;
            --text-dark: #1A1A2E;
            --text-muted: #6B7280;
            --border: #E5E9F0;
            --radius: 14px;
            --radius-sm: 10px;
            --shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 6px 20px rgba(26, 109, 212, 0.10);
            --font-sans: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --transition: all 0.25s ease;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text-dark);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button,
        input,
        textarea {
            font-family: var(--font-sans);
            font-size: 1rem;
            outline: none;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

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

        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 20px;
            letter-spacing: 1px;
        }

        .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            flex-wrap: wrap;
        }

        .nav-links a {
            color: var(--text-dark);
            font-size: 0.95rem;
            font-weight: 500;
            position: relative;
            padding: 6px 2px;
            white-space: nowrap;
            transition: var(--transition);
        }

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

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

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 3px 10px rgba(255, 106, 0, 0.25);
        }

        .btn-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(255, 106, 0, 0.32);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 2px 6px rgba(255, 106, 0, 0.2);
        }

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

        .btn-outline:hover {
            background: var(--primary-10);
            color: var(--primary);
        }

        .btn-lg {
            padding: 14px 30px;
            font-size: 1.05rem;
            border-radius: 10px;
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 0.875rem;
            border-radius: 8px;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
            z-index: 110;
        }

        .hamburger span {
            display: block;
            width: 28px;
            height: 3px;
            background: var(--text-dark);
            border-radius: 3px;
            transition: var(--transition);
        }

        .hamburger.open span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }

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

        .hamburger.open span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            background: #fff;
            z-index: 99;
            padding: 24px 20px;
            overflow-y: auto;
            flex-direction: column;
            gap: 16px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }

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

        .mobile-menu a {
            display: block;
            padding: 12px 16px;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-dark);
            border-radius: 10px;
            transition: var(--transition);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: var(--primary-light);
            color: var(--primary);
        }

        .page-header-section {
            background: linear-gradient(180deg, var(--primary-light) 0%, var(--bg) 100%);
            padding: 48px 0 32px;
            border-bottom: 1px solid var(--border);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

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

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

        .breadcrumb .separator {
            color: #D1D5DB;
            user-select: none;
        }

        .page-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .page-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 780px;
            line-height: 1.75;
        }

        .main-content {
            padding: 48px 0 64px;
        }

        .content-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            align-items: start;
        }

        .content-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .content-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border);
        }

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

        .content-card.featured {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
        }

        .content-card-image {
            position: relative;
            min-height: 220px;
            background-size: cover;
            background-position: center;
            background-color: var(--primary-light);
        }

        .content-card-body {
            padding: 24px 28px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .content-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            letter-spacing: 0.5px;
            margin-bottom: 4px;
        }

        .content-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.45;
            margin-bottom: 6px;
        }

        .content-title a {
            color: var(--text-dark);
        }

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

        .content-summary {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.75;
            flex-grow: 1;
        }

        .content-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 20px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
            margin-right: 6px;
            margin-bottom: 6px;
        }

        .content-tag.accent {
            background: rgba(255, 106, 0, 0.1);
            color: var(--accent);
        }

        .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
            margin-top: 4px;
        }

        .read-more:hover {
            color: var(--accent);
            gap: 10px;
        }

        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 96px;
        }

        .sidebar-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 24px;
            border: 1px solid var(--border);
        }

        .sidebar-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-light);
        }

        .sidebar-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .sidebar-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-dark);
            padding: 8px 10px;
            border-radius: 8px;
            transition: var(--transition);
        }

        .sidebar-list a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .sidebar-list .rank-badge {
            width: 24px;
            height: 24px;
            border-radius: 6px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.75rem;
            flex-shrink: 0;
        }

        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .sidebar-tags a {
            padding: 6px 14px;
            border-radius: 20px;
            background: var(--bg);
            color: var(--text-muted);
            font-size: 0.82rem;
            transition: var(--transition);
            border: 1px solid var(--border);
        }

        .sidebar-tags a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 40px;
            flex-wrap: wrap;
        }

        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition);
            border: 1px solid var(--border);
            background: var(--card-bg);
            color: var(--text-dark);
        }

        .pagination a:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
        }

        .pagination .current {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 700;
        }

        .pagination .disabled {
            color: #D1D5DB;
            cursor: not-allowed;
            background: var(--bg);
        }

        .cooperation-hero {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            background: linear-gradient(135deg, #1A1A2E 0%, #1A6DD4 50%, #FF6A00 130%);
            padding: 56px 48px;
            color: #fff;
            margin-bottom: 48px;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }

        .cooperation-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }

        .cooperation-hero h1 {
            font-size: 2.4rem;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
            color: #fff;
        }

        .cooperation-hero p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.75;
            margin-bottom: 24px;
        }

        .cooperation-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: 30px;
            background: rgba(255, 255, 255, 0.15);
            font-size: 0.875rem;
            font-weight: 600;
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
        }

        .cooperation-hero-image {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            min-height: 260px;
            background-size: cover;
            background-position: center;
        }

        .cooperation-stats {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

        .cooperation-stat {
            background: rgba(255, 255, 255, 0.12);
            border-radius: 10px;
            padding: 12px 18px;
            text-align: center;
            min-width: 90px;
            backdrop-filter: blur(4px);
        }

        .cooperation-stat .stat-number {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
        }

        .cooperation-stat .stat-label {
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.75);
        }

        .value-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-bottom: 48px;
        }

        .value-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

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

        .value-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .value-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }

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

        .process-section {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 40px;
            margin-bottom: 48px;
            border: 1px solid var(--border);
        }

        .process-section h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 24px;
            text-align: center;
        }

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

        .process-step {
            text-align: center;
            padding: 20px;
            border-radius: var(--radius-sm);
            background: var(--bg);
            position: relative;
        }

        .step-number {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            margin: 0 auto 12px;
        }

        .process-step h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }

        .process-step p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

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

        .faq-section h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 24px;
            text-align: center;
        }

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

        .faq-question {
            padding: 18px 24px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-dark);
            gap: 16px;
            user-select: none;
            transition: var(--transition);
        }

        .faq-question:hover {
            background: var(--primary-light);
        }

        .faq-question .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 6px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 700;
            flex-shrink: 0;
            transition: var(--transition);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 24px;
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.75;
            border-left: 3px solid transparent;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
            border-left-color: var(--primary);
        }

        .cta-section {
            background: linear-gradient(135deg, #1A1A2E 0%, #1A6DD4 100%);
            border-radius: var(--radius);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            margin-bottom: 48px;
        }

        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }

        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 24px;
        }

        .cta-section .btn-primary {
            background: var(--accent);
            box-shadow: 0 4px 16px rgba(255, 106, 0, 0.4);
        }

        .cta-section .btn-primary:hover {
            background: var(--accent-dark);
        }

        .cta-section .btn-outline {
            border-color: rgba(255, 255, 255, 0.5);
            color: #fff;
        }

        .cta-section .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }

        .site-footer {
            background: #1A1A2E;
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 24px;
            margin-top: 0;
        }

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

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

        .footer-brand .logo-text {
            color: #fff;
            font-size: 1.4rem;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            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 a {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px 24px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
        }

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

        @media (max-width: 1024px) {
            .content-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .cooperation-hero {
                grid-template-columns: 1fr;
                padding: 40px 32px;
            }

            .cooperation-hero-image {
                min-height: 200px;
            }

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

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

            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
        }

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

            .hamburger {
                display: flex;
            }

            .header-cta .btn-outline {
                display: none;
            }

            .header-cta {
                gap: 8px;
            }

            .mobile-menu {
                display: none;
            }

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

            .header-inner {
                height: 64px;
                padding: 0 8px;
            }

            .page-header-section {
                padding: 32px 0 24px;
            }

            .page-title {
                font-size: 1.6rem;
            }

            .content-card.featured {
                grid-template-columns: 1fr;
            }

            .content-card-image {
                min-height: 160px;
            }

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

            .process-steps {
                grid-template-columns: 1fr;
            }

            .cooperation-hero {
                padding: 32px 20px;
            }

            .cooperation-hero h1 {
                font-size: 1.8rem;
            }

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

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

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

            .cta-section h2 {
                font-size: 1.4rem;
            }

            .container {
                padding: 0 16px;
            }

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

            .process-section {
                padding: 24px 18px;
            }
        }

        @media (max-width: 480px) {
            .logo-text {
                font-size: 1.05rem;
            }

            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }

            .header-cta .btn {
                padding: 8px 14px;
                font-size: 0.8rem;
            }

            .breadcrumb {
                font-size: 0.78rem;
            }

            .page-title {
                font-size: 1.35rem;
            }

            .content-title {
                font-size: 1.05rem;
            }

            .cooperation-stats {
                gap: 8px;
            }

            .cooperation-stat {
                padding: 8px 12px;
                min-width: 70px;
            }

            .cooperation-stat .stat-number {
                font-size: 1.2rem;
            }

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