/* roulang page: index */
:root {
            --xy-primary: #5B21B6;
            --xy-primary-light: #7C3AED;
            --xy-primary-subtle: #EDE9FE;
            --xy-accent: #F59E0B;
            --xy-accent-hover: #D97706;
            --xy-success: #10B981;
            --xy-text-main: #0F172A;
            --xy-text-body: #334155;
            --xy-text-muted: #64748B;
            --xy-bg-light: #F8FAFC;
            --xy-bg-white: #FFFFFF;
            --xy-border: #E2E8F0;
            --xy-border-light: #EEF2F6;
            --xy-shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
            --xy-shadow-md: 0 8px 24px -4px rgba(15, 23, 42, 0.08);
            --xy-shadow-lg: 0 16px 36px -6px rgba(15, 23, 42, 0.12);
            --xy-radius: 12px;
            --xy-radius-lg: 18px;
            --xy-radius-pill: 9999px;
            --xy-transition: all 0.28s ease-in-out;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--xy-text-body);
            background-color: var(--xy-bg-light);
            line-height: 1.68;
            -webkit-font-smoothing: antialiased;
        }

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

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

        /* 顶部通栏白底导航 */
        .xy-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--xy-border-light);
            box-shadow: 0 2px 12px rgba(15, 23, 42, 0.03);
            height: 72px;
        }
        .xy-nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .xy-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 800;
            font-size: 1.45rem;
            color: var(--xy-text-main);
            letter-spacing: -0.5px;
        }
        .xy-brand i {
            color: var(--xy-primary);
            font-size: 1.6rem;
            background: var(--xy-primary-subtle);
            padding: 8px;
            border-radius: 10px;
        }
        .xy-menu-links {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 28px;
            margin: 0;
        }
        .xy-menu-links li a {
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--xy-text-body);
            padding: 8px 12px;
            border-radius: 6px;
            position: relative;
        }
        .xy-menu-links li a:hover,
        .xy-menu-links li a.active {
            color: var(--xy-primary);
            background: var(--xy-primary-subtle);
        }
        .xy-nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .xy-search-box {
            position: relative;
            display: flex;
            align-items: center;
        }
        .xy-search-box input {
            height: 40px;
            width: 180px;
            border-radius: var(--xy-radius-pill);
            border: 1px solid var(--xy-border);
            padding: 0 16px 0 36px;
            font-size: 0.88rem;
            background: var(--xy-bg-light);
            margin: 0;
            transition: var(--xy-transition);
        }
        .xy-search-box input:focus {
            width: 220px;
            border-color: var(--xy-primary);
            background: #fff;
            outline: none;
            box-shadow: 0 0 0 3px rgba(91, 33, 182, 0.15);
        }
        .xy-search-box i {
            position: absolute;
            left: 12px;
            color: var(--xy-text-muted);
            font-size: 0.85rem;
        }
        .xy-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            border-radius: var(--xy-radius-pill);
            transition: var(--xy-transition);
            cursor: pointer;
            border: none;
            text-align: center;
            padding: 10px 22px;
            font-size: 0.92rem;
            white-space: nowrap;
        }
        .xy-btn-primary {
            background: linear-gradient(135deg, var(--xy-primary) 0%, var(--xy-primary-light) 100%);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(91, 33, 182, 0.25);
        }
        .xy-btn-primary:hover {
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(91, 33, 182, 0.35);
        }
        .xy-btn-accent {
            background: linear-gradient(135deg, var(--xy-accent) 0%, var(--xy-accent-hover) 100%);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.25);
        }
        .xy-btn-accent:hover {
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
        }
        .xy-btn-outline {
            background: transparent;
            color: var(--xy-text-main);
            border: 1px solid var(--xy-border);
        }
        .xy-btn-outline:hover {
            background: #ffffff;
            border-color: var(--xy-primary);
            color: var(--xy-primary);
        }

        /* 统一板块样式与间距 */
        .xy-section {
            padding: 85px 0;
            position: relative;
        }
        .xy-section-white {
            background-color: var(--xy-bg-white);
        }
        .xy-section-header {
            text-align: center;
            max-width: 820px;
            margin: 0 auto 50px auto;
        }
        .xy-section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--xy-primary);
            background: var(--xy-primary-subtle);
            padding: 4px 14px;
            border-radius: var(--xy-radius-pill);
            margin-bottom: 12px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .xy-section-title {
            font-size: 2.1rem;
            font-weight: 800;
            color: var(--xy-text-main);
            line-height: 1.35;
            margin-bottom: 14px;
        }
        .xy-section-desc {
            font-size: 1.05rem;
            color: var(--xy-text-muted);
            line-height: 1.65;
        }

        /* 1. Hero 视觉首屏区 */
        .xy-hero-wrap {
            position: relative;
            background: linear-gradient(180deg, #FFFFFF 0%, #F5F3FF 100%);
            padding: 80px 0 90px 0;
            overflow: hidden;
            border-bottom: 1px solid var(--xy-border-light);
        }
        .xy-hero-bg-overlay {
            position: absolute;
            inset: 0;
            background-image: radial-gradient(rgba(91, 33, 182, 0.08) 1px, transparent 1px);
            background-size: 24px 24px;
            pointer-events: none;
        }
        .xy-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            padding: 6px 16px;
            border-radius: var(--xy-radius-pill);
            box-shadow: var(--xy-shadow-sm);
            border: 1px solid var(--xy-border);
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--xy-primary);
            margin-bottom: 20px;
        }
        .xy-hero-badge span.pulse-dot {
            width: 8px;
            height: 8px;
            background-color: var(--xy-success);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
        }
        .xy-hero-h1 {
            font-size: 2.85rem;
            font-weight: 800;
            color: var(--xy-text-main);
            line-height: 1.25;
            margin-bottom: 18px;
            letter-spacing: -0.8px;
        }
        .xy-hero-p {
            font-size: 1.08rem;
            color: var(--xy-text-body);
            line-height: 1.75;
            margin-bottom: 30px;
        }
        .xy-hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 35px;
        }
        .xy-hero-panel {
            background: #ffffff;
            border-radius: var(--xy-radius-lg);
            padding: 28px;
            box-shadow: var(--xy-shadow-lg);
            border: 1px solid var(--xy-border);
            position: relative;
        }
        .xy-hero-card-img {
            border-radius: var(--xy-radius);
            margin-bottom: 18px;
            object-fit: cover;
            height: 220px;
            width: 100%;
        }
        .xy-hero-panel-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 15px;
        }
        .xy-chip-status {
            background: #ECFDF5;
            color: #065F46;
            font-size: 0.78rem;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: var(--xy-radius-pill);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .xy-meta-bar {
            display: flex;
            gap: 12px;
            border-top: 1px solid var(--xy-border-light);
            padding-top: 16px;
            margin-top: 16px;
        }
        .xy-meta-item {
            flex: 1;
            font-size: 0.82rem;
            color: var(--xy-text-muted);
        }
        .xy-meta-item strong {
            display: block;
            font-size: 1rem;
            color: var(--xy-text-main);
            font-weight: 700;
        }

        /* 2. 服务矩阵卡片 */
        .xy-service-card {
            background: #ffffff;
            border-radius: var(--xy-radius);
            padding: 26px 22px;
            border: 1px solid var(--xy-border);
            box-shadow: var(--xy-shadow-sm);
            transition: var(--xy-transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .xy-service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--xy-shadow-md);
            border-color: var(--xy-primary);
        }
        .xy-service-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: var(--xy-primary-subtle);
            color: var(--xy-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 18px;
        }
        .xy-service-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--xy-text-main);
            margin-bottom: 10px;
        }
        .xy-service-card p {
            font-size: 0.9rem;
            color: var(--xy-text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
            flex-grow: 1;
        }
        .xy-tag-badge {
            font-size: 0.75rem;
            color: var(--xy-primary);
            background: #F3F4F6;
            padding: 3px 8px;
            border-radius: 4px;
            font-weight: 600;
            align-self: flex-start;
        }

        /* 3. 数据看板 */
        .xy-metrics-section {
            background: #0F172A;
            color: #ffffff;
            padding: 60px 0;
        }
        .xy-metric-item {
            text-align: center;
            padding: 20px 10px;
        }
        .xy-metric-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: #38BDF8;
            line-height: 1;
            margin-bottom: 8px;
            font-family: 'Courier New', Courier, monospace;
        }
        .xy-metric-label {
            font-size: 1rem;
            font-weight: 600;
            color: #E2E8F0;
            margin-bottom: 4px;
        }
        .xy-metric-sub {
            font-size: 0.8rem;
            color: #94A3B8;
        }

        /* 4. 方案流程 */
        .xy-step-box {
            position: relative;
            background: #ffffff;
            border-radius: var(--xy-radius);
            padding: 30px 24px;
            border: 1px solid var(--xy-border);
            height: 100%;
        }
        .xy-step-num {
            position: absolute;
            top: 18px;
            right: 20px;
            font-size: 2.2rem;
            font-weight: 900;
            color: #E2E8F0;
            line-height: 1;
        }
        .xy-step-icon {
            font-size: 1.8rem;
            color: var(--xy-primary);
            margin-bottom: 16px;
        }
        .xy-step-box h4 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--xy-text-main);
            margin-bottom: 8px;
        }
        .xy-step-box p {
            font-size: 0.88rem;
            color: var(--xy-text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* 5. 多端案例墙 */
        .xy-case-card {
            background: #ffffff;
            border-radius: var(--xy-radius-lg);
            overflow: hidden;
            border: 1px solid var(--xy-border);
            box-shadow: var(--xy-shadow-sm);
            margin-bottom: 24px;
            display: flex;
            flex-direction: column;
        }
        .xy-case-img {
            height: 220px;
            object-fit: cover;
            width: 100%;
        }
        .xy-case-body {
            padding: 24px;
            flex-grow: 1;
        }
        .xy-case-body h4 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--xy-text-main);
            margin-bottom: 10px;
        }
        .xy-case-body p {
            font-size: 0.92rem;
            color: var(--xy-text-muted);
            line-height: 1.65;
            margin-bottom: 14px;
        }

        /* 6. 特色体验专区 */
        .xy-feature-visual {
            border-radius: var(--xy-radius-lg);
            overflow: hidden;
            box-shadow: var(--xy-shadow-lg);
            border: 1px solid var(--xy-border);
        }
        .xy-feature-list-item {
            background: #ffffff;
            border: 1px solid var(--xy-border);
            border-radius: var(--xy-radius);
            padding: 20px 24px;
            margin-bottom: 16px;
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: var(--xy-transition);
        }
        .xy-feature-list-item:hover {
            border-color: var(--xy-primary);
            box-shadow: var(--xy-shadow-sm);
        }
        .xy-feature-list-icon {
            font-size: 1.4rem;
            color: var(--xy-primary);
            background: var(--xy-primary-subtle);
            width: 44px;
            height: 44px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .xy-feature-list-text h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--xy-text-main);
            margin-bottom: 6px;
        }
        .xy-feature-list-text p {
            font-size: 0.88rem;
            color: var(--xy-text-muted);
            margin: 0;
        }

        /* 7. 技术安全条 */
        .xy-sec-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 20px;
            background: #ffffff;
            border-radius: var(--xy-radius);
            border: 1px solid var(--xy-border);
        }
        .xy-sec-item i {
            font-size: 2rem;
            color: var(--xy-success);
        }
        .xy-sec-item strong {
            display: block;
            font-size: 1.05rem;
            color: var(--xy-text-main);
        }
        .xy-sec-item span {
            font-size: 0.82rem;
            color: var(--xy-text-muted);
        }

        /* 8. 资讯网格 */
        .xy-news-featured {
            background: #ffffff;
            border-radius: var(--xy-radius);
            overflow: hidden;
            border: 1px solid var(--xy-border);
            box-shadow: var(--xy-shadow-sm);
            height: 100%;
        }
        .xy-news-featured img {
            height: 240px;
            width: 100%;
            object-fit: cover;
        }
        .xy-news-featured-content {
            padding: 24px;
        }
        .xy-news-item-compact {
            background: #ffffff;
            border-radius: var(--xy-radius);
            padding: 16px 20px;
            border: 1px solid var(--xy-border);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: var(--xy-transition);
        }
        .xy-news-item-compact:hover {
            border-color: var(--xy-primary);
            box-shadow: var(--xy-shadow-sm);
        }
        .xy-news-tag {
            font-size: 0.75rem;
            background: var(--xy-primary-subtle);
            color: var(--xy-primary);
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 600;
        }

        /* 9. 生态合作 */
        .xy-partner-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: 20px;
        }
        .xy-partner-item {
            background: #ffffff;
            border: 1px solid var(--xy-border);
            border-radius: var(--xy-radius);
            padding: 22px 14px;
            text-align: center;
            font-weight: 700;
            color: var(--xy-text-muted);
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: var(--xy-transition);
        }
        .xy-partner-item:hover {
            color: var(--xy-primary);
            border-color: var(--xy-primary);
            box-shadow: var(--xy-shadow-sm);
        }

        /* 10. FAQ 折叠 */
        .xy-faq-card {
            background: #ffffff;
            border-radius: var(--xy-radius);
            border: 1px solid var(--xy-border);
            margin-bottom: 14px;
            overflow: hidden;
        }
        .xy-faq-card details summary {
            padding: 20px 24px;
            font-weight: 700;
            color: var(--xy-text-main);
            font-size: 1.05rem;
            cursor: pointer;
            list-style: none;
            position: relative;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .xy-faq-card details summary::-webkit-details-marker {
            display: none;
        }
        .xy-faq-card details summary::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 0.85rem;
            color: var(--xy-text-muted);
            transition: var(--xy-transition);
        }
        .xy-faq-card details[open] summary::after {
            transform: rotate(180deg);
            color: var(--xy-primary);
        }
        .xy-faq-body {
            padding: 0 24px 20px 24px;
            font-size: 0.94rem;
            color: var(--xy-text-body);
            line-height: 1.7;
            border-top: 1px solid var(--xy-border-light);
            padding-top: 16px;
        }

        /* 11. 权益保障承诺条 */
        .xy-guarantee-card {
            text-align: center;
            padding: 24px 16px;
            background: #ffffff;
            border-radius: var(--xy-radius);
            border: 1px solid var(--xy-border);
        }
        .xy-guarantee-card i {
            font-size: 2.2rem;
            color: var(--xy-primary);
            margin-bottom: 14px;
        }
        .xy-guarantee-card h5 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--xy-text-main);
            margin-bottom: 6px;
        }
        .xy-guarantee-card p {
            font-size: 0.84rem;
            color: var(--xy-text-muted);
            margin: 0;
        }

        /* 12. 转化收尾卡片 */
        .xy-cta-box {
            background: linear-gradient(135deg, #1E1B4B 0%, #31104B 100%);
            border-radius: var(--xy-radius-lg);
            padding: 55px 40px;
            color: #ffffff;
            position: relative;
            overflow: hidden;
            box-shadow: var(--xy-shadow-lg);
        }
        .xy-cta-content h2 {
            font-size: 2.3rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 14px;
            color: #FFFFFF;
        }
        .xy-cta-content p {
            font-size: 1.05rem;
            color: #CBD5E1;
            margin-bottom: 28px;
            max-width: 680px;
        }
        .xy-cta-btns {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            align-items: center;
        }

        /* 统一页脚 */
        .xy-footer {
            background-color: #0F172A;
            color: #94A3B8;
            padding: 70px 0 30px 0;
            border-top: 1px solid #1E293B;
            font-size: 0.92rem;
        }
        .xy-footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.4rem;
            color: #ffffff;
            margin-bottom: 16px;
        }
        .xy-footer-brand i {
            color: var(--xy-primary-light);
        }
        .xy-footer-p {
            line-height: 1.7;
            margin-bottom: 20px;
            font-size: 0.88rem;
            color: #94A3B8;
        }
        .xy-footer-col h4 {
            color: #ffffff;
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        .xy-footer-col h4::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            background: var(--xy-primary-light);
            border-radius: 2px;
        }
        .xy-footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .xy-footer-links li {
            margin-bottom: 10px;
        }
        .xy-footer-links li a {
            color: #94A3B8;
        }
        .xy-footer-links li a:hover {
            color: #ffffff;
            padding-left: 4px;
        }
        .xy-footer-bottom {
            margin-top: 50px;
            padding-top: 25px;
            border-top: 1px solid #1E293B;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 14px;
            font-size: 0.82rem;
        }
        .xy-footer-bottom a {
            color: #94A3B8;
        }
        .xy-footer-bottom a:hover {
            color: #FFFFFF;
        }

        /* 移动端与响应式断点 */
        @media screen and (max-width: 1023px) {
            .xy-menu-links {
                gap: 16px;
            }
            .xy-search-box input {
                width: 140px;
            }
            .xy-hero-h1 {
                font-size: 2.3rem;
            }
            .xy-section-title {
                font-size: 1.85rem;
            }
        }
        @media screen and (max-width: 767px) {
            .xy-header {
                height: auto;
                padding: 12px 0;
            }
            .xy-nav-container {
                flex-wrap: wrap;
                gap: 12px;
            }
            .xy-menu-links {
                width: 100%;
                justify-content: space-between;
                gap: 8px;
                overflow-x: auto;
                padding-bottom: 4px;
            }
            .xy-menu-links li a {
                padding: 6px 8px;
                font-size: 0.88rem;
                white-space: nowrap;
            }
            .xy-nav-actions {
                display: none;
            }
            .xy-hero-h1 {
                font-size: 1.95rem;
            }
            .xy-section {
                padding: 50px 0;
            }
            .xy-cta-box {
                padding: 36px 20px;
            }
            .xy-cta-content h2 {
                font-size: 1.65rem;
            }
            .xy-footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category1 */
:root {
      --xy-primary: #5B21B6;
      --xy-primary-light: #7C3AED;
      --xy-primary-subtle: #EDE9FE;
      --xy-accent: #F59E0B;
      --xy-accent-hover: #D97706;
      --xy-success: #10B981;
      --xy-text-main: #0F172A;
      --xy-text-body: #334155;
      --xy-text-muted: #64748B;
      --xy-bg-light: #F8FAFC;
      --xy-bg-white: #FFFFFF;
      --xy-border: #E2E8F0;
      --xy-border-light: #EEF2F6;
      --xy-shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --xy-shadow-md: 0 8px 24px -4px rgba(15, 23, 42, 0.08);
      --xy-shadow-lg: 0 16px 36px -6px rgba(15, 23, 42, 0.12);
      --xy-radius: 12px;
      --xy-radius-lg: 18px;
      --xy-radius-pill: 9999px;
      --xy-transition: all 0.28s ease-in-out;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--xy-text-body);
      background-color: var(--xy-bg-light);
      line-height: 1.68;
      -webkit-font-smoothing: antialiased;
      margin: 0;
      padding: 0;
    }

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

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

    /* 顶部通栏白底导航 */
    .xy-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--xy-border-light);
      box-shadow: 0 2px 12px rgba(15, 23, 42, 0.03);
      height: 72px;
    }
    .xy-nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 100%;
    }
    .xy-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      font-size: 1.45rem;
      color: var(--xy-text-main);
      letter-spacing: -0.5px;
    }
    .xy-brand i {
      color: var(--xy-primary);
      font-size: 1.6rem;
      background: var(--xy-primary-subtle);
      padding: 8px;
      border-radius: 10px;
    }
    .xy-menu-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 24px;
      margin: 0;
      padding: 0;
    }
    .xy-menu-links li a {
      font-weight: 600;
      font-size: 0.96rem;
      color: var(--xy-text-body);
      padding: 8px 14px;
      border-radius: 8px;
      display: inline-block;
    }
    .xy-menu-links li a:hover,
    .xy-menu-links li a.active {
      color: var(--xy-primary);
      background: var(--xy-primary-subtle);
    }
    .xy-nav-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .xy-search-box {
      position: relative;
      display: flex;
      align-items: center;
    }
    .xy-search-box input {
      height: 40px;
      width: 180px;
      border-radius: var(--xy-radius-pill);
      border: 1px solid var(--xy-border);
      padding: 0 16px 0 36px;
      font-size: 0.88rem;
      background: var(--xy-bg-light);
      margin: 0;
      transition: var(--xy-transition);
    }
    .xy-search-box input:focus {
      width: 220px;
      border-color: var(--xy-primary);
      background: #ffffff;
      outline: none;
      box-shadow: 0 0 0 3px rgba(91, 33, 182, 0.15);
    }
    .xy-search-box i {
      position: absolute;
      left: 12px;
      color: var(--xy-text-muted);
      font-size: 0.85rem;
    }
    .xy-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-weight: 600;
      border-radius: var(--xy-radius-pill);
      transition: var(--xy-transition);
      cursor: pointer;
      border: none;
      text-align: center;
      padding: 10px 22px;
      font-size: 0.92rem;
      white-space: nowrap;
    }
    .xy-btn-primary {
      background: linear-gradient(135deg, var(--xy-primary) 0%, var(--xy-primary-light) 100%);
      color: #ffffff !important;
      box-shadow: 0 4px 14px rgba(91, 33, 182, 0.25);
    }
    .xy-btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(91, 33, 182, 0.35);
    }
    .xy-btn-accent {
      background: linear-gradient(135deg, var(--xy-accent) 0%, var(--xy-accent-hover) 100%);
      color: #ffffff !important;
      box-shadow: 0 4px 14px rgba(245, 158, 11, 0.25);
    }
    .xy-btn-accent:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
    }
    .xy-btn-outline {
      background: transparent;
      color: var(--xy-text-main);
      border: 1px solid var(--xy-border);
    }
    .xy-btn-outline:hover {
      background: #ffffff;
      border-color: var(--xy-primary);
      color: var(--xy-primary);
    }

    /* 统一板块样式与间距 */
    .xy-section {
      padding: 76px 0;
      position: relative;
    }
    .xy-section-white {
      background-color: var(--xy-bg-white);
    }
    .xy-section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 46px auto;
    }
    .xy-section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.82rem;
      font-weight: 700;
      color: var(--xy-primary);
      background: var(--xy-primary-subtle);
      padding: 4px 14px;
      border-radius: var(--xy-radius-pill);
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .xy-section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--xy-text-main);
      margin-bottom: 14px;
      line-height: 1.3;
    }
    .xy-section-desc {
      font-size: 1rem;
      color: var(--xy-text-muted);
      line-height: 1.7;
      margin: 0;
    }

    /* 分类首屏：对比选型卡片前置 */
    .xy-cat-hero {
      background: linear-gradient(180deg, #FFFFFF 0%, #F1F5F9 100%);
      padding: 56px 0 68px 0;
      border-bottom: 1px solid var(--xy-border);
    }
    .xy-breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.88rem;
      color: var(--xy-text-muted);
      margin-bottom: 20px;
    }
    .xy-hero-title {
      font-size: 2.4rem;
      font-weight: 900;
      color: var(--xy-text-main);
      line-height: 1.25;
      margin-bottom: 14px;
    }
    .xy-hero-subtitle {
      font-size: 1.05rem;
      color: var(--xy-text-body);
      max-width: 860px;
      margin-bottom: 30px;
    }
    
    /* 筛选过滤栏 */
    .xy-filter-bar {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      background: var(--xy-bg-white);
      padding: 14px 22px;
      border-radius: var(--xy-radius);
      border: 1px solid var(--xy-border);
      box-shadow: var(--xy-shadow-sm);
      margin-bottom: 36px;
    }
    .xy-filter-group {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
    }
    .xy-filter-label {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--xy-text-muted);
    }
    .xy-filter-chip {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--xy-text-body);
      background: var(--xy-bg-light);
      border-radius: var(--xy-radius-pill);
      border: 1px solid var(--xy-border);
      cursor: pointer;
      transition: var(--xy-transition);
    }
    .xy-filter-chip:hover,
    .xy-filter-chip.active {
      background: var(--xy-primary);
      color: #ffffff;
      border-color: var(--xy-primary);
    }

    /* 对比选型卡片 */
    .xy-compare-grid {
      margin-top: 10px;
    }
    .xy-compare-card {
      background: var(--xy-bg-white);
      border-radius: var(--xy-radius-lg);
      border: 1px solid var(--xy-border);
      padding: 32px 26px;
      height: 100%;
      display: flex;
      flex-direction: column;
      position: relative;
      transition: var(--xy-transition);
      box-shadow: var(--xy-shadow-sm);
    }
    .xy-compare-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--xy-shadow-md);
      border-color: var(--xy-primary-light);
    }
    .xy-compare-card.xy-featured {
      border: 2px solid var(--xy-primary);
      box-shadow: 0 12px 32px -4px rgba(91, 33, 182, 0.18);
      background: #FFFFFF;
    }
    .xy-card-badge {
      position: absolute;
      top: -14px;
      right: 24px;
      background: linear-gradient(135deg, var(--xy-accent) 0%, var(--xy-accent-hover) 100%);
      color: #ffffff;
      font-size: 0.76rem;
      font-weight: 800;
      padding: 4px 14px;
      border-radius: var(--xy-radius-pill);
      letter-spacing: 0.5px;
      box-shadow: 0 4px 10px rgba(245, 158, 11, 0.3);
    }
    .xy-tier-name {
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--xy-text-main);
      margin-bottom: 6px;
    }
    .xy-tier-desc {
      font-size: 0.88rem;
      color: var(--xy-text-muted);
      margin-bottom: 20px;
      min-height: 44px;
    }
    .xy-tier-indicator {
      display: flex;
      align-items: baseline;
      gap: 6px;
      margin-bottom: 20px;
      padding-bottom: 18px;
      border-bottom: 1px dashed var(--xy-border);
    }
    .xy-tier-val {
      font-size: 1.8rem;
      font-weight: 900;
      color: var(--xy-primary);
    }
    .xy-tier-unit {
      font-size: 0.85rem;
      color: var(--xy-text-muted);
    }
    .xy-tier-points {
      list-style: none;
      padding: 0;
      margin: 0 0 26px 0;
      flex-grow: 1;
    }
    .xy-tier-points li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.9rem;
      color: var(--xy-text-body);
      margin-bottom: 12px;
    }
    .xy-tier-points li i {
      color: var(--xy-success);
      font-size: 0.85rem;
    }

    /* 矩阵卡片网格 */
    .xy-matrix-card {
      background: var(--xy-bg-white);
      border-radius: var(--xy-radius);
      border: 1px solid var(--xy-border);
      overflow: hidden;
      box-shadow: var(--xy-shadow-sm);
      transition: var(--xy-transition);
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .xy-matrix-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--xy-shadow-md);
      border-color: rgba(91, 33, 182, 0.3);
    }
    .xy-matrix-media {
      position: relative;
      overflow: hidden;
      height: 190px;
      background: #E2E8F0;
    }
    .xy-matrix-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .xy-matrix-card:hover .xy-matrix-media img {
      transform: scale(1.05);
    }
    .xy-status-tag {
      position: absolute;
      top: 12px;
      left: 12px;
      background: rgba(15, 23, 42, 0.85);
      backdrop-filter: blur(6px);
      color: #ffffff;
      padding: 4px 10px;
      border-radius: var(--xy-radius-pill);
      font-size: 0.75rem;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .xy-pulse-dot {
      width: 7px;
      height: 7px;
      background: var(--xy-success);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--xy-success);
    }
    .xy-matrix-body {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .xy-matrix-title {
      font-size: 1.22rem;
      font-weight: 800;
      color: var(--xy-text-main);
      margin-bottom: 8px;
    }
    .xy-matrix-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.82rem;
      color: var(--xy-text-muted);
      margin-bottom: 12px;
    }
    .xy-stars {
      color: var(--xy-accent);
      display: flex;
      gap: 2px;
    }
    .xy-matrix-desc {
      font-size: 0.9rem;
      color: var(--xy-text-body);
      line-height: 1.6;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .xy-pill-group {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-bottom: 20px;
    }
    .xy-small-pill {
      font-size: 0.75rem;
      padding: 3px 8px;
      border-radius: 6px;
      background: var(--xy-primary-subtle);
      color: var(--xy-primary);
      font-weight: 600;
    }

    /* 本类目精选推荐置顶大卡 */
    .xy-showcase-box {
      background: linear-gradient(135deg, #1E1B4B 0%, #0F172A 100%);
      border-radius: var(--xy-radius-lg);
      padding: 44px;
      color: #ffffff;
      box-shadow: var(--xy-shadow-lg);
      overflow: hidden;
      position: relative;
    }
    .xy-showcase-box::before {
      content:"";
      position: absolute;
      top: -50%;
      right: -20%;
      width: 480px;
      height: 480px;
      background: radial-gradient(circle, rgba(124, 58, 237, 0.28) 0%, rgba(0, 0, 0, 0) 70%);
      pointer-events: none;
    }
    .xy-showcase-title {
      color: #ffffff;
      font-size: 1.85rem;
      font-weight: 800;
      margin-bottom: 12px;
    }
    .xy-showcase-p {
      color: #CBD5E1;
      font-size: 0.96rem;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .xy-spec-grid {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--xy-radius);
      padding: 20px;
      margin-bottom: 26px;
    }
    .xy-spec-item {
      padding: 8px 12px;
    }
    .xy-spec-k {
      font-size: 0.78rem;
      color: #94A3B8;
      text-transform: uppercase;
    }
    .xy-spec-v {
      font-size: 1.05rem;
      font-weight: 700;
      color: #F8FAFC;
    }

    /* 场景化落地交错 */
    .xy-split-block {
      align-items: center;
      margin-bottom: 48px;
    }
    .xy-split-block:last-child {
      margin-bottom: 0;
    }
    .xy-split-img {
      border-radius: var(--xy-radius-lg);
      overflow: hidden;
      box-shadow: var(--xy-shadow-md);
      position: relative;
    }
    .xy-split-img img {
      width: 100%;
      height: 320px;
      object-fit: cover;
    }
    .xy-split-content {
      padding: 20px 30px;
    }
    .xy-split-title {
      font-size: 1.55rem;
      font-weight: 800;
      color: var(--xy-text-main);
      margin-bottom: 14px;
    }
    .xy-split-desc {
      font-size: 0.95rem;
      color: var(--xy-text-body);
      line-height: 1.75;
      margin-bottom: 20px;
    }
    .xy-check-list {
      list-style: none;
      padding: 0;
      margin: 0 0 24px 0;
    }
    .xy-check-list li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.92rem;
      color: var(--xy-text-body);
      margin-bottom: 10px;
    }
    .xy-check-list li i {
      color: var(--xy-primary);
    }

    /* 技术规格与服务标准表 */
    .xy-table-card {
      background: var(--xy-bg-white);
      border-radius: var(--xy-radius);
      border: 1px solid var(--xy-border);
      overflow: hidden;
      box-shadow: var(--xy-shadow-sm);
    }
    .xy-data-table {
      width: 100%;
      margin: 0;
      border-collapse: collapse;
    }
    .xy-data-table thead {
      background: #F1F5F9;
      border-bottom: 2px solid var(--xy-border);
    }
    .xy-data-table th {
      padding: 16px 20px;
      font-size: 0.92rem;
      font-weight: 800;
      color: var(--xy-text-main);
      text-align: left;
    }
    .xy-data-table td {
      padding: 16px 20px;
      font-size: 0.9rem;
      color: var(--xy-text-body);
      border-bottom: 1px solid var(--xy-border-light);
    }
    .xy-data-table tbody tr:hover {
      background: #FAF5FF;
    }
    .xy-status-active {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--xy-success);
      font-weight: 600;
    }

    /* FAQ 手风琴样式 */
    .xy-faq-item {
      background: var(--xy-bg-white);
      border-radius: var(--xy-radius);
      border: 1px solid var(--xy-border);
      margin-bottom: 14px;
      padding: 22px 26px;
      box-shadow: var(--xy-shadow-sm);
      transition: var(--xy-transition);
    }
    .xy-faq-item:hover {
      border-color: var(--xy-primary-light);
    }
    .xy-faq-q {
      font-size: 1.08rem;
      font-weight: 800;
      color: var(--xy-text-main);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .xy-faq-q i {
      color: var(--xy-primary);
    }
    .xy-faq-a {
      font-size: 0.92rem;
      color: var(--xy-text-body);
      line-height: 1.7;
      margin: 0;
    }

    /* 资讯卡片 */
    .xy-news-card {
      background: var(--xy-bg-white);
      border-radius: var(--xy-radius);
      border: 1px solid var(--xy-border);
      padding: 24px;
      height: 100%;
      box-shadow: var(--xy-shadow-sm);
      transition: var(--xy-transition);
      display: flex;
      flex-direction: column;
    }
    .xy-news-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--xy-shadow-md);
      border-color: var(--xy-primary);
    }
    .xy-news-date {
      font-size: 0.8rem;
      color: var(--xy-text-muted);
      margin-bottom: 8px;
    }
    .xy-news-title {
      font-size: 1.1rem;
      font-weight: 800;
      color: var(--xy-text-main);
      line-height: 1.4;
      margin-bottom: 12px;
    }
    .xy-news-summary {
      font-size: 0.88rem;
      color: var(--xy-text-body);
      line-height: 1.65;
      margin-bottom: 18px;
      flex-grow: 1;
    }
    .xy-news-link {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--xy-primary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 底部收口转化面板 */
    .xy-cta-box {
      background: linear-gradient(135deg, var(--xy-primary) 0%, #312E81 100%);
      border-radius: var(--xy-radius-lg);
      padding: 56px 40px;
      color: #ffffff;
      text-align: center;
      box-shadow: var(--xy-shadow-lg);
      position: relative;
    }
    .xy-cta-box h2 {
      font-size: 2.1rem;
      font-weight: 900;
      color: #ffffff;
      margin-bottom: 16px;
    }
    .xy-cta-box p {
      font-size: 1.05rem;
      color: #E0E7FF;
      max-width: 760px;
      margin: 0 auto 32px auto;
      line-height: 1.7;
    }
    .xy-cta-btns {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    /* 页脚样式 */
    .xy-footer {
      background-color: #0F172A;
      color: #94A3B8;
      padding: 70px 0 28px 0;
      border-top: 1px solid #1E293B;
    }
    .xy-footer-title {
      font-size: 1rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 18px;
      letter-spacing: 0.5px;
    }
    .xy-footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .xy-footer-links li {
      margin-bottom: 10px;
    }
    .xy-footer-links li a {
      color: #94A3B8;
      font-size: 0.88rem;
    }
    .xy-footer-links li a:hover {
      color: #FFFFFF;
      padding-left: 4px;
    }
    .xy-footer-bottom {
      border-top: 1px solid #1E293B;
      margin-top: 50px;
      padding-top: 24px;
      font-size: 0.82rem;
      text-align: center;
      color: #64748B;
    }

    @media (max-width: 1023px) {
      .xy-menu-links {
        display: none;
      }
      .xy-section {
        padding: 56px 0;
      }
      .xy-hero-title {
        font-size: 1.95rem;
      }
      .xy-section-title {
        font-size: 1.65rem;
      }
      .xy-showcase-box {
        padding: 30px 20px;
      }
      .xy-split-content {
        padding: 20px 0 0 0;
      }
    }

/* roulang page: category2 */
:root {
      --xy-primary: #5B21B6;
      --xy-primary-light: #7C3AED;
      --xy-primary-subtle: #EDE9FE;
      --xy-accent: #F59E0B;
      --xy-accent-hover: #D97706;
      --xy-success: #10B981;
      --xy-text-main: #0F172A;
      --xy-text-body: #334155;
      --xy-text-muted: #64748B;
      --xy-bg-light: #F8FAFC;
      --xy-bg-white: #FFFFFF;
      --xy-border: #E2E8F0;
      --xy-border-light: #EEF2F6;
      --xy-shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --xy-shadow-md: 0 8px 24px -4px rgba(15, 23, 42, 0.08);
      --xy-shadow-lg: 0 16px 36px -6px rgba(15, 23, 42, 0.12);
      --xy-radius: 12px;
      --xy-radius-lg: 18px;
      --xy-radius-pill: 9999px;
      --xy-transition: all 0.28s ease-in-out;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--xy-text-body);
      background-color: var(--xy-bg-light);
      line-height: 1.68;
      -webkit-font-smoothing: antialiased;
      margin: 0;
      padding: 0;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: var(--xy-transition);
    }
    a:hover {
      color: var(--xy-primary);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .xy-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--xy-border-light);
      box-shadow: 0 2px 12px rgba(15, 23, 42, 0.03);
      height: 72px;
    }
    .xy-nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 100%;
    }
    .xy-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      font-size: 1.45rem;
      color: var(--xy-text-main);
      letter-spacing: -0.5px;
    }
    .xy-brand i {
      color: var(--xy-primary);
      font-size: 1.6rem;
      background: var(--xy-primary-subtle);
      padding: 8px;
      border-radius: 10px;
    }
    .xy-menu-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 28px;
      margin: 0;
    }
    .xy-menu-links li a {
      font-weight: 600;
      font-size: 0.98rem;
      color: var(--xy-text-body);
      padding: 8px 12px;
      border-radius: 6px;
      position: relative;
    }
    .xy-menu-links li a:hover,
    .xy-menu-links li a.active {
      color: var(--xy-primary);
      background: var(--xy-primary-subtle);
    }
    .xy-nav-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .xy-search-box {
      position: relative;
      display: flex;
      align-items: center;
    }
    .xy-search-box input {
      height: 40px;
      width: 180px;
      border-radius: var(--xy-radius-pill);
      border: 1px solid var(--xy-border);
      padding: 0 16px 0 36px;
      font-size: 0.88rem;
      background: var(--xy-bg-light);
      margin: 0;
      transition: var(--xy-transition);
    }
    .xy-search-box input:focus {
      width: 220px;
      border-color: var(--xy-primary);
      background: #fff;
      outline: none;
      box-shadow: 0 0 0 3px rgba(91, 33, 182, 0.15);
    }
    .xy-search-box i {
      position: absolute;
      left: 12px;
      color: var(--xy-text-muted);
      font-size: 0.85rem;
    }
    .xy-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-weight: 600;
      border-radius: var(--xy-radius-pill);
      transition: var(--xy-transition);
      cursor: pointer;
      border: none;
      text-align: center;
      padding: 10px 22px;
      font-size: 0.92rem;
      white-space: nowrap;
    }
    .xy-btn-primary {
      background: linear-gradient(135deg, var(--xy-primary) 0%, var(--xy-primary-light) 100%);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(91, 33, 182, 0.25);
    }
    .xy-btn-primary:hover {
      color: #ffffff;
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(91, 33, 182, 0.35);
    }
    .xy-btn-accent {
      background: linear-gradient(135deg, var(--xy-accent) 0%, var(--xy-accent-hover) 100%);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(245, 158, 11, 0.25);
    }
    .xy-btn-accent:hover {
      color: #ffffff;
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
    }
    .xy-btn-outline {
      background: #ffffff;
      color: var(--xy-text-main);
      border: 1px solid var(--xy-border);
    }
    .xy-btn-outline:hover {
      background: var(--xy-primary-subtle);
      border-color: var(--xy-primary);
      color: var(--xy-primary);
    }
    .xy-section {
      padding: 80px 0;
      position: relative;
    }
    .xy-section-white {
      background-color: var(--xy-bg-white);
    }
    .xy-section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 50px auto;
    }
    .xy-section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.82rem;
      font-weight: 700;
      color: var(--xy-primary);
      background: var(--xy-primary-subtle);
      padding: 5px 16px;
      border-radius: var(--xy-radius-pill);
      margin-bottom: 14px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .xy-section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--xy-text-main);
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .xy-section-subtitle {
      font-size: 1.05rem;
      color: var(--xy-text-muted);
      line-height: 1.7;
      margin: 0 auto;
    }
    .xy-pulse-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--xy-success);
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    }
    
    /* 分类首屏与筛选条 */
    .xy-cat-hero {
      background: linear-gradient(180deg, #FFFFFF 0%, #F1F5F9 100%);
      padding: 54px 0 40px 0;
      border-bottom: 1px solid var(--xy-border);
    }
    .xy-cat-badge-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
    }
    .xy-geo-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: #FFFFFF;
      border: 1px solid var(--xy-border);
      padding: 4px 12px;
      border-radius: var(--xy-radius-pill);
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--xy-text-body);
      box-shadow: var(--xy-shadow-sm);
    }
    .xy-cat-h1 {
      font-size: 2.45rem;
      font-weight: 800;
      color: var(--xy-text-main);
      line-height: 1.25;
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }
    .xy-cat-lead {
      font-size: 1.05rem;
      color: var(--xy-text-muted);
      max-width: 880px;
      line-height: 1.7;
      margin-bottom: 28px;
    }
    .xy-filter-bar {
      background: var(--xy-bg-white);
      border: 1px solid var(--xy-border);
      border-radius: var(--xy-radius);
      padding: 16px 20px;
      box-shadow: var(--xy-shadow-sm);
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
    }
    .xy-filter-group {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
    }
    .xy-filter-label {
      font-size: 0.86rem;
      font-weight: 700;
      color: var(--xy-text-main);
      margin-right: 4px;
    }
    .xy-filter-chip {
      font-size: 0.82rem;
      padding: 5px 12px;
      border-radius: var(--xy-radius-pill);
      background: var(--xy-bg-light);
      border: 1px solid var(--xy-border);
      color: var(--xy-text-body);
      font-weight: 500;
      cursor: pointer;
      transition: var(--xy-transition);
    }
    .xy-filter-chip:hover,
    .xy-filter-chip.active {
      background: var(--xy-primary);
      border-color: var(--xy-primary);
      color: #FFFFFF;
    }

    /* 引擎卡片网格 */
    .xy-engine-card {
      background: var(--xy-bg-white);
      border: 1px solid var(--xy-border);
      border-radius: var(--xy-radius);
      box-shadow: var(--xy-shadow-sm);
      transition: var(--xy-transition);
      overflow: hidden;
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .xy-engine-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--xy-shadow-md);
      border-color: #CBD5E1;
    }
    .xy-engine-thumb {
      height: 180px;
      position: relative;
      overflow: hidden;
      background-color: #E2E8F0;
    }
    .xy-engine-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .xy-engine-card:hover .xy-engine-thumb img {
      transform: scale(1.05);
    }
    .xy-engine-tag-overlay {
      position: absolute;
      top: 12px;
      left: 12px;
      background: rgba(15, 23, 42, 0.8);
      backdrop-filter: blur(4px);
      color: #FFFFFF;
      font-size: 0.75rem;
      padding: 3px 10px;
      border-radius: var(--xy-radius-pill);
      font-weight: 600;
    }
    .xy-engine-status-overlay {
      position: absolute;
      top: 12px;
      right: 12px;
      background: #FFFFFF;
      padding: 3px 10px;
      border-radius: var(--xy-radius-pill);
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--xy-success);
      display: flex;
      align-items: center;
      gap: 5px;
      box-shadow: 0 2px 6px rgba(0,0,0,0.15);
    }
    .xy-engine-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .xy-engine-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--xy-text-main);
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .xy-engine-desc {
      font-size: 0.9rem;
      color: var(--xy-text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
      flex: 1;
    }
    .xy-engine-specs {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
      margin-bottom: 20px;
      padding-top: 12px;
      border-top: 1px dashed var(--xy-border);
    }
    .xy-spec-pill {
      font-size: 0.76rem;
      background: var(--xy-bg-light);
      border: 1px solid var(--xy-border);
      padding: 2px 8px;
      border-radius: 4px;
      color: var(--xy-text-body);
      font-weight: 500;
    }
    .xy-engine-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-top: auto;
    }
    .xy-rating-stars {
      color: var(--xy-accent);
      font-size: 0.8rem;
      display: flex;
      align-items: center;
      gap: 3px;
    }

    /* 置顶精选巨幕大卡 */
    .xy-featured-hero-card {
      background: linear-gradient(135deg, #0F172A 0%, #1E1B4B 100%);
      border-radius: var(--xy-radius-lg);
      color: #FFFFFF;
      overflow: hidden;
      box-shadow: var(--xy-shadow-lg);
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .xy-featured-content {
      padding: 48px;
    }
    .xy-featured-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(129, 140, 248, 0.2);
      border: 1px solid rgba(129, 140, 248, 0.35);
      color: #C7D2FE;
      padding: 4px 14px;
      border-radius: var(--xy-radius-pill);
      font-size: 0.82rem;
      font-weight: 600;
      margin-bottom: 16px;
    }
    .xy-featured-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .xy-featured-desc {
      font-size: 1rem;
      color: #CBD5E1;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .xy-featured-metrics {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-bottom: 30px;
      background: rgba(255, 255, 255, 0.05);
      padding: 16px 20px;
      border-radius: var(--xy-radius);
      border: 1px solid rgba(255, 255, 255, 0.08);
    }
    .xy-metric-num {
      font-size: 1.6rem;
      font-weight: 800;
      color: #FBBF24;
      line-height: 1.1;
    }
    .xy-metric-label {
      font-size: 0.78rem;
      color: #94A3B8;
      margin-top: 4px;
    }
    .xy-featured-media {
      position: relative;
      height: 100%;
      min-height: 380px;
    }
    .xy-featured-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    /* 场景落地图文 */
    .xy-scene-card {
      background: var(--xy-bg-white);
      border: 1px solid var(--xy-border);
      border-radius: var(--xy-radius-lg);
      padding: 36px;
      box-shadow: var(--xy-shadow-sm);
      margin-bottom: 32px;
      transition: var(--xy-transition);
    }
    .xy-scene-card:hover {
      box-shadow: var(--xy-shadow-md);
      border-color: #CBD5E1;
    }
    .xy-scene-badge {
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--xy-primary);
      background: var(--xy-primary-subtle);
      padding: 4px 12px;
      border-radius: var(--xy-radius-pill);
      display: inline-block;
      margin-bottom: 12px;
    }
    .xy-scene-title {
      font-size: 1.55rem;
      font-weight: 700;
      color: var(--xy-text-main);
      margin-bottom: 12px;
    }
    .xy-scene-p {
      font-size: 0.95rem;
      color: var(--xy-text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .xy-scene-checklist {
      list-style: none;
      margin: 0 0 24px 0;
      padding: 0;
    }
    .xy-scene-checklist li {
      font-size: 0.9rem;
      color: var(--xy-text-body);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .xy-scene-checklist li i {
      color: var(--xy-success);
      font-size: 0.95rem;
    }

    /* 技术规格表格 */
    .xy-spec-table-card {
      background: var(--xy-bg-white);
      border-radius: var(--xy-radius-lg);
      border: 1px solid var(--xy-border);
      box-shadow: var(--xy-shadow-sm);
      overflow: hidden;
    }
    .xy-spec-table {
      width: 100%;
      border-collapse: collapse;
      margin: 0;
      text-align: left;
    }
    .xy-spec-table th {
      background: #F1F5F9;
      color: var(--xy-text-main);
      font-weight: 700;
      padding: 16px 24px;
      font-size: 0.9rem;
      border-bottom: 1px solid var(--xy-border);
    }
    .xy-spec-table td {
      padding: 18px 24px;
      font-size: 0.9rem;
      color: var(--xy-text-body);
      border-bottom: 1px solid var(--xy-border);
      vertical-align: middle;
    }
    .xy-spec-table tr:last-child td {
      border-bottom: none;
    }
    .xy-spec-table tr:hover td {
      background: #F8FAFC;
    }

    /* 分类专属 FAQ */
    .xy-faq-item {
      background: var(--xy-bg-white);
      border: 1px solid var(--xy-border);
      border-radius: var(--xy-radius);
      margin-bottom: 14px;
      overflow: hidden;
      box-shadow: var(--xy-shadow-sm);
    }
    .xy-faq-q {
      padding: 20px 24px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--xy-text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .xy-faq-q i {
      font-size: 0.9rem;
      color: var(--xy-primary);
      transition: transform 0.25s ease;
    }
    .xy-faq-a {
      padding: 0 24px 20px 24px;
      font-size: 0.92rem;
      color: var(--xy-text-muted);
      line-height: 1.7;
    }

    /* 延伸阅读 */
    .xy-read-card {
      background: var(--xy-bg-white);
      border: 1px solid var(--xy-border);
      border-radius: var(--xy-radius);
      overflow: hidden;
      box-shadow: var(--xy-shadow-sm);
      transition: var(--xy-transition);
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .xy-read-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--xy-shadow-md);
    }
    .xy-read-thumb {
      height: 160px;
      background: #E2E8F0;
      overflow: hidden;
    }
    .xy-read-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .xy-read-content {
      padding: 20px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .xy-read-meta {
      font-size: 0.78rem;
      color: var(--xy-text-muted);
      margin-bottom: 8px;
      display: flex;
      justify-content: space-between;
    }
    .xy-read-title {
      font-size: 1.08rem;
      font-weight: 700;
      color: var(--xy-text-main);
      margin-bottom: 10px;
      line-height: 1.45;
    }
    .xy-read-snippet {
      font-size: 0.85rem;
      color: var(--xy-text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex: 1;
    }

    /* 底部专属咨询条 */
    .xy-cat-cta-bar {
      background: linear-gradient(135deg, #1E1B4B 0%, #312E81 100%);
      border-radius: var(--xy-radius-lg);
      padding: 45px 50px;
      color: #FFFFFF;
      position: relative;
      overflow: hidden;
      box-shadow: var(--xy-shadow-md);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 30px;
    }
    .xy-cat-cta-bar::after {
      content: "";
      position: absolute;
      right: -40px;
      top: -40px;
      width: 220px;
      height: 220px;
      background: radial-gradient(circle, rgba(245, 158, 11, 0.15) 0%, rgba(0,0,0,0) 70%);
      pointer-events: none;
    }
    .xy-cat-cta-title {
      font-size: 1.8rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 10px;
      line-height: 1.3;
    }
    .xy-cat-cta-p {
      font-size: 0.98rem;
      color: #CBD5E1;
      max-width: 620px;
      margin: 0;
      line-height: 1.65;
    }

    /* 页脚 */
    .xy-footer {
      background-color: #0F172A;
      color: #F8FAFC;
      padding: 70px 0 35px 0;
      border-top: 1px solid #1E293B;
    }
    .xy-footer-title {
      font-size: 1rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 18px;
      position: relative;
      padding-bottom: 8px;
    }
    .xy-footer-title::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 28px;
      height: 2px;
      background: var(--xy-primary-light);
    }
    .xy-footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .xy-footer-links li {
      margin-bottom: 10px;
    }
    .xy-footer-links li a {
      color: #94A3B8;
      font-size: 0.88rem;
      transition: var(--xy-transition);
    }
    .xy-footer-links li a:hover {
      color: #FFFFFF;
      padding-left: 4px;
    }
    .xy-footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 24px;
      margin-top: 48px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.82rem;
      color: #64748B;
      flex-wrap: wrap;
      gap: 12px;
    }

    /* 响应式微调 */
    @media screen and (max-width: 1024px) {
      .xy-cat-h1 { font-size: 2.1rem; }
      .xy-cat-cta-bar { flex-direction: column; text-align: center; padding: 36px 24px; }
      .xy-featured-content { padding: 32px; }
      .xy-featured-media { min-height: 280px; }
    }
    @media screen and (max-width: 768px) {
      .xy-header { height: auto; padding: 12px 0; }
      .xy-nav-container { flex-direction: column; gap: 12px; }
      .xy-menu-links { flex-wrap: wrap; justify-content: center; gap: 10px; }
      .xy-nav-actions { width: 100%; justify-content: center; }
      .xy-search-box input { width: 150px; }
      .xy-section { padding: 50px 0; }
      .xy-cat-h1 { font-size: 1.8rem; }
      .xy-featured-metrics { grid-template-columns: 1fr; gap: 12px; }
      .xy-filter-bar { flex-direction: column; align-items: flex-start; }
      .xy-spec-table { display: block; overflow-x: auto; }
    }

/* roulang page: category4 */
:root {
      --xy-primary: #5B21B6;
      --xy-primary-light: #7C3AED;
      --xy-primary-subtle: #EDE9FE;
      --xy-accent: #F59E0B;
      --xy-accent-hover: #D97706;
      --xy-success: #10B981;
      --xy-text-main: #0F172A;
      --xy-text-body: #334155;
      --xy-text-muted: #64748B;
      --xy-bg-light: #F8FAFC;
      --xy-bg-white: #FFFFFF;
      --xy-border: #E2E8F0;
      --xy-border-light: #EEF2F6;
      --xy-shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --xy-shadow-md: 0 8px 24px -4px rgba(15, 23, 42, 0.08);
      --xy-shadow-lg: 0 16px 36px -6px rgba(15, 23, 42, 0.12);
      --xy-radius: 12px;
      --xy-radius-lg: 18px;
      --xy-radius-pill: 9999px;
      --xy-transition: all 0.28s ease-in-out;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--xy-text-body);
      background-color: var(--xy-bg-light);
      line-height: 1.68;
      -webkit-font-smoothing: antialiased;
      margin: 0;
      padding: 0;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: var(--xy-transition);
    }
    a:hover {
      color: var(--xy-primary);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .xy-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--xy-border-light);
      box-shadow: 0 2px 12px rgba(15, 23, 42, 0.03);
      height: 72px;
    }
    .xy-nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 100%;
    }
    .xy-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      font-size: 1.45rem;
      color: var(--xy-text-main);
      letter-spacing: -0.5px;
    }
    .xy-brand i {
      color: var(--xy-primary);
      font-size: 1.6rem;
      background: var(--xy-primary-subtle);
      padding: 8px;
      border-radius: 10px;
    }
    .xy-menu-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 24px;
      margin: 0;
    }
    .xy-menu-links li a {
      font-weight: 600;
      font-size: 0.95rem;
      color: var(--xy-text-body);
      padding: 8px 12px;
      border-radius: 6px;
      display: inline-block;
    }
    .xy-menu-links li a:hover,
    .xy-menu-links li a.active {
      color: var(--xy-primary);
      background: var(--xy-primary-subtle);
    }
    .xy-nav-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .xy-search-box {
      position: relative;
      display: flex;
      align-items: center;
    }
    .xy-search-box input {
      height: 40px;
      width: 170px;
      border-radius: var(--xy-radius-pill);
      border: 1px solid var(--xy-border);
      padding: 0 16px 0 36px;
      font-size: 0.88rem;
      background: var(--xy-bg-light);
      margin: 0;
      transition: var(--xy-transition);
    }
    .xy-search-box input:focus {
      width: 210px;
      border-color: var(--xy-primary);
      background: #fff;
      outline: none;
      box-shadow: 0 0 0 3px rgba(91, 33, 182, 0.15);
    }
    .xy-search-box i {
      position: absolute;
      left: 12px;
      color: var(--xy-text-muted);
      font-size: 0.85rem;
    }
    .xy-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-weight: 600;
      border-radius: var(--xy-radius-pill);
      transition: var(--xy-transition);
      cursor: pointer;
      border: none;
      text-align: center;
      padding: 10px 22px;
      font-size: 0.92rem;
      white-space: nowrap;
    }
    .xy-btn-primary {
      background: linear-gradient(135deg, var(--xy-primary) 0%, var(--xy-primary-light) 100%);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(91, 33, 182, 0.25);
    }
    .xy-btn-primary:hover {
      color: #ffffff;
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(91, 33, 182, 0.35);
    }
    .xy-btn-accent {
      background: linear-gradient(135deg, var(--xy-accent) 0%, var(--xy-accent-hover) 100%);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(245, 158, 11, 0.25);
    }
    .xy-btn-accent:hover {
      color: #ffffff;
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
    }
    .xy-btn-outline {
      background: transparent;
      color: var(--xy-text-main);
      border: 1px solid var(--xy-border);
    }
    .xy-btn-outline:hover {
      background: #ffffff;
      border-color: var(--xy-primary);
      color: var(--xy-primary);
    }
    .xy-section {
      padding: 72px 0;
      position: relative;
    }
    .xy-section-white {
      background-color: var(--xy-bg-white);
    }
    .xy-section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 46px auto;
    }
    .xy-section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.82rem;
      font-weight: 700;
      color: var(--xy-primary);
      background: var(--xy-primary-subtle);
      padding: 4px 14px;
      border-radius: var(--xy-radius-pill);
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .xy-section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--xy-text-main);
      margin-bottom: 14px;
      line-height: 1.3;
    }
    .xy-section-desc {
      font-size: 1.02rem;
      color: var(--xy-text-muted);
      line-height: 1.7;
      margin: 0;
    }
    .xy-category-hero {
      background: linear-gradient(180deg, #F1F5F9 0%, #F8FAFC 100%);
      padding: 56px 0 46px 0;
      border-bottom: 1px solid var(--xy-border);
    }
    .xy-filter-bar {
      background: #FFFFFF;
      border-radius: var(--xy-radius);
      padding: 18px 24px;
      border: 1px solid var(--xy-border);
      box-shadow: var(--xy-shadow-sm);
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      margin-top: 28px;
    }
    .xy-filter-group {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
    }
    .xy-filter-label {
      font-size: 0.86rem;
      font-weight: 700;
      color: var(--xy-text-main);
      margin-right: 6px;
    }
    .xy-filter-chip {
      font-size: 0.82rem;
      padding: 5px 14px;
      border-radius: var(--xy-radius-pill);
      background: var(--xy-bg-light);
      border: 1px solid var(--xy-border);
      color: var(--xy-text-body);
      font-weight: 500;
      cursor: pointer;
      transition: var(--xy-transition);
    }
    .xy-filter-chip.active,
    .xy-filter-chip:hover {
      background: var(--xy-primary);
      color: #FFFFFF;
      border-color: var(--xy-primary);
    }
    .xy-pulse-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      display: inline-block;
      position: relative;
    }
    .xy-pulse-dot.online {
      background-color: var(--xy-success);
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    }
    .xy-card {
      background: #FFFFFF;
      border-radius: var(--xy-radius);
      border: 1px solid var(--xy-border);
      padding: 24px;
      box-shadow: var(--xy-shadow-sm);
      transition: var(--xy-transition);
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .xy-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--xy-shadow-md);
      border-color: #CBD5E1;
    }
    .xy-badge {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      font-size: 0.78rem;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: var(--xy-radius-pill);
    }
    .xy-badge-success {
      background: #ECFDF5;
      color: #065F46;
    }
    .xy-badge-primary {
      background: var(--xy-primary-subtle);
      color: var(--xy-primary);
    }
    .xy-badge-accent {
      background: #FEF3C7;
      color: #92400E;
    }
    .xy-featured-banner {
      background: #FFFFFF;
      border-radius: var(--xy-radius-lg);
      border: 1px solid var(--xy-border);
      overflow: hidden;
      box-shadow: var(--xy-shadow-md);
    }
    .xy-featured-img-wrap {
      height: 100%;
      min-height: 280px;
      position: relative;
      overflow: hidden;
    }
    .xy-featured-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .xy-featured-content {
      padding: 38px 42px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .xy-metric-strip {
      display: flex;
      gap: 28px;
      margin-top: 24px;
      padding-top: 20px;
      border-top: 1px solid var(--xy-border-light);
    }
    .xy-metric-item h4 {
      font-size: 1.55rem;
      font-weight: 800;
      color: var(--xy-primary);
      margin: 0;
    }
    .xy-metric-item p {
      font-size: 0.82rem;
      color: var(--xy-text-muted);
      margin: 2px 0 0 0;
    }
    .xy-table-card {
      background: #FFFFFF;
      border-radius: var(--xy-radius);
      border: 1px solid var(--xy-border);
      overflow: hidden;
      box-shadow: var(--xy-shadow-sm);
    }
    .xy-table {
      width: 100%;
      margin: 0;
      border-collapse: collapse;
    }
    .xy-table th {
      background: #F8FAFC;
      color: var(--xy-text-main);
      font-weight: 700;
      padding: 16px 20px;
      font-size: 0.92rem;
      border-bottom: 1px solid var(--xy-border);
      text-align: left;
    }
    .xy-table td {
      padding: 16px 20px;
      font-size: 0.88rem;
      color: var(--xy-text-body);
      border-bottom: 1px solid var(--xy-border-light);
    }
    .xy-table tr:last-child td {
      border-bottom: none;
    }
    .xy-faq-item {
      background: #FFFFFF;
      border-radius: var(--xy-radius);
      border: 1px solid var(--xy-border);
      margin-bottom: 14px;
      overflow: hidden;
    }
    .xy-faq-question {
      padding: 18px 24px;
      font-weight: 700;
      font-size: 1rem;
      color: var(--xy-text-main);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
    }
    .xy-faq-question i {
      color: var(--xy-primary);
      transition: var(--xy-transition);
    }
    .xy-faq-answer {
      padding: 0 24px 20px 24px;
      color: var(--xy-text-body);
      font-size: 0.92rem;
      line-height: 1.7;
    }
    .xy-news-card {
      background: #FFFFFF;
      border-radius: var(--xy-radius);
      border: 1px solid var(--xy-border);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      height: 100%;
      box-shadow: var(--xy-shadow-sm);
      transition: var(--xy-transition);
    }
    .xy-news-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--xy-shadow-md);
    }
    .xy-news-img {
      height: 180px;
      overflow: hidden;
    }
    .xy-news-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--xy-transition);
    }
    .xy-news-card:hover .xy-news-img img {
      transform: scale(1.05);
    }
    .xy-news-body {
      padding: 22px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .xy-news-date {
      font-size: 0.8rem;
      color: var(--xy-text-muted);
      margin-bottom: 8px;
    }
    .xy-cta-box {
      background: linear-gradient(135deg, #1E1B4B 0%, #312E81 50%, #4338CA 100%);
      border-radius: var(--xy-radius-lg);
      padding: 56px 40px;
      color: #FFFFFF;
      text-align: center;
      box-shadow: var(--xy-shadow-lg);
      position: relative;
      overflow: hidden;
    }
    .xy-cta-box::before {
      content: "";
      position: absolute;
      top: -80px;
      right: -80px;
      width: 240px;
      height: 240px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(245, 158, 11, 0.25) 0%, transparent 70%);
      pointer-events: none;
    }
    .xy-footer {
      background: #0F172A;
      color: #94A3B8;
      padding: 68px 0 32px 0;
      border-top: 1px solid #1E293B;
    }
    .xy-footer-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 20px;
      letter-spacing: 0.5px;
    }
    .xy-footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .xy-footer-links li {
      margin-bottom: 11px;
    }
    .xy-footer-links li a {
      color: #94A3B8;
      font-size: 0.88rem;
    }
    .xy-footer-links li a:hover {
      color: #818CF8;
      padding-left: 4px;
    }
    .xy-footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 26px;
      margin-top: 48px;
      font-size: 0.84rem;
      color: #64748B;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }
    @media (max-width: 1024px) {
      .xy-menu-links {
        gap: 16px;
      }
      .xy-search-box input {
        width: 140px;
      }
    }
    @media (max-width: 768px) {
      .xy-header {
        height: auto;
        padding: 12px 0;
      }
      .xy-nav-container {
        flex-direction: column;
        gap: 12px;
      }
      .xy-menu-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
      }
      .xy-menu-links li a {
        padding: 6px 10px;
        font-size: 0.88rem;
      }
      .xy-nav-actions {
        width: 100%;
        justify-content: center;
      }
      .xy-section {
        padding: 50px 0;
      }
      .xy-section-title {
        font-size: 1.65rem;
      }
      .xy-filter-bar {
        flex-direction: column;
        align-items: flex-start;
      }
      .xy-featured-content {
        padding: 24px;
      }
      .xy-metric-strip {
        flex-wrap: wrap;
        gap: 16px;
      }
      .xy-cta-box {
        padding: 36px 20px;
      }
    }

/* roulang page: category3 */
:root {
            --xy-primary: #5B21B6;
            --xy-primary-light: #7C3AED;
            --xy-primary-subtle: #EDE9FE;
            --xy-accent: #F59E0B;
            --xy-accent-hover: #D97706;
            --xy-success: #10B981;
            --xy-text-main: #0F172A;
            --xy-text-body: #334155;
            --xy-text-muted: #64748B;
            --xy-bg-light: #F8FAFC;
            --xy-bg-white: #FFFFFF;
            --xy-border: #E2E8F0;
            --xy-border-light: #EEF2F6;
            --xy-shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
            --xy-shadow-md: 0 8px 24px -4px rgba(15, 23, 42, 0.08);
            --xy-shadow-lg: 0 16px 36px -6px rgba(15, 23, 42, 0.12);
            --xy-radius: 12px;
            --xy-radius-lg: 18px;
            --xy-radius-pill: 9999px;
            --xy-transition: all 0.28s ease-in-out;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--xy-text-body);
            background-color: var(--xy-bg-light);
            line-height: 1.68;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--xy-transition);
        }
        a:hover {
            color: var(--xy-primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .xy-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--xy-border-light);
            box-shadow: 0 2px 12px rgba(15, 23, 42, 0.03);
            height: 72px;
        }
        .xy-nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .xy-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 800;
            font-size: 1.45rem;
            color: var(--xy-text-main);
            letter-spacing: -0.5px;
        }
        .xy-brand i {
            color: var(--xy-primary);
            font-size: 1.6rem;
            background: var(--xy-primary-subtle);
            padding: 8px;
            border-radius: 10px;
        }
        .xy-menu-links {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 28px;
            margin: 0;
        }
        .xy-menu-links li a {
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--xy-text-body);
            padding: 8px 12px;
            border-radius: 6px;
            position: relative;
        }
        .xy-menu-links li a:hover,
        .xy-menu-links li a.active {
            color: var(--xy-primary);
            background: var(--xy-primary-subtle);
        }
        .xy-nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .xy-search-box {
            position: relative;
            display: flex;
            align-items: center;
        }
        .xy-search-box input {
            height: 40px;
            width: 180px;
            border-radius: var(--xy-radius-pill);
            border: 1px solid var(--xy-border);
            padding: 0 16px 0 36px;
            font-size: 0.88rem;
            background: var(--xy-bg-light);
            margin: 0;
            transition: var(--xy-transition);
        }
        .xy-search-box input:focus {
            width: 220px;
            border-color: var(--xy-primary);
            background: #fff;
            outline: none;
            box-shadow: 0 0 0 3px rgba(91, 33, 182, 0.15);
        }
        .xy-search-box i {
            position: absolute;
            left: 12px;
            color: var(--xy-text-muted);
            font-size: 0.85rem;
        }
        .xy-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            border-radius: var(--xy-radius-pill);
            transition: var(--xy-transition);
            cursor: pointer;
            border: none;
            text-align: center;
            padding: 10px 22px;
            font-size: 0.92rem;
            white-space: nowrap;
        }
        .xy-btn-primary {
            background: linear-gradient(135deg, var(--xy-primary) 0%, var(--xy-primary-light) 100%);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(91, 33, 182, 0.25);
        }
        .xy-btn-primary:hover {
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(91, 33, 182, 0.35);
        }
        .xy-btn-accent {
            background: linear-gradient(135deg, var(--xy-accent) 0%, var(--xy-accent-hover) 100%);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.25);
        }
        .xy-btn-accent:hover {
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
        }
        .xy-btn-outline {
            background: transparent;
            color: var(--xy-text-main);
            border: 1px solid var(--xy-border);
        }
        .xy-btn-outline:hover {
            background: #ffffff;
            border-color: var(--xy-primary);
            color: var(--xy-primary);
        }
        .xy-section {
            padding: 80px 0;
            position: relative;
        }
        .xy-section-white {
            background-color: var(--xy-bg-white);
        }
        .xy-section-header {
            text-align: center;
            max-width: 820px;
            margin: 0 auto 48px auto;
        }
        .xy-section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.84rem;
            font-weight: 700;
            color: var(--xy-primary);
            background: var(--xy-primary-subtle);
            padding: 5px 16px;
            border-radius: var(--xy-radius-pill);
            margin-bottom: 14px;
            text-transform: uppercase;
        }
        .xy-section-title {
            font-size: 2.15rem;
            font-weight: 800;
            color: var(--xy-text-main);
            letter-spacing: -0.5px;
            line-height: 1.3;
            margin-bottom: 14px;
        }
        .xy-section-desc {
            font-size: 1.05rem;
            color: var(--xy-text-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* 分类页定制首屏与过滤栏 */
        .xy-cat-hero {
            background: linear-gradient(180deg, #FFFFFF 0%, #F1F5F9 100%);
            padding: 50px 0 40px 0;
            border-bottom: 1px solid var(--xy-border);
        }
        .xy-cat-title-row {
            margin-bottom: 24px;
        }
        .xy-cat-h1 {
            font-size: 2.35rem;
            font-weight: 900;
            color: var(--xy-text-main);
            line-height: 1.25;
            margin-bottom: 12px;
        }
        .xy-cat-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #DCFCE7;
            color: #15803D;
            padding: 4px 12px;
            border-radius: var(--xy-radius-pill);
            font-size: 0.8rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .xy-filter-bar {
            background: #FFFFFF;
            padding: 16px 24px;
            border-radius: var(--xy-radius);
            box-shadow: var(--xy-shadow-sm);
            border: 1px solid var(--xy-border-light);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .xy-filter-group {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .xy-filter-label {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--xy-text-muted);
        }
        .xy-filter-pill {
            display: inline-block;
            font-size: 0.84rem;
            padding: 6px 14px;
            border-radius: var(--xy-radius-pill);
            background: var(--xy-bg-light);
            color: var(--xy-text-body);
            border: 1px solid var(--xy-border);
            cursor: pointer;
            transition: var(--xy-transition);
        }
        .xy-filter-pill:hover,
        .xy-filter-pill.active {
            background: var(--xy-primary);
            color: #ffffff;
            border-color: var(--xy-primary);
        }

        /* 预约卡片式 3 列网格 */
        .xy-matrix-card {
            background: #ffffff;
            border-radius: var(--xy-radius);
            border: 1px solid var(--xy-border);
            padding: 24px;
            box-shadow: var(--xy-shadow-sm);
            transition: var(--xy-transition);
            display: flex;
            flex-direction: column;
            height: 100%;
            position: relative;
        }
        .xy-matrix-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--xy-shadow-md);
            border-color: var(--xy-primary-light);
        }
        .xy-card-top {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            margin-bottom: 16px;
        }
        .xy-card-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: var(--xy-primary-subtle);
            color: var(--xy-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
        }
        .xy-pulse-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.76rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: var(--xy-radius-pill);
            background: #FEF3C7;
            color: #B45309;
        }
        .xy-pulse-badge.green {
            background: #DCFCE7;
            color: #15803D;
        }
        .xy-card-title {
            font-size: 1.22rem;
            font-weight: 700;
            color: var(--xy-text-main);
            margin-bottom: 8px;
        }
        .xy-card-text {
            font-size: 0.92rem;
            color: var(--xy-text-body);
            line-height: 1.6;
            margin-bottom: 18px;
            flex-grow: 1;
        }
        .xy-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 18px;
        }
        .xy-tag-item {
            font-size: 0.75rem;
            background: var(--xy-bg-light);
            color: var(--xy-text-muted);
            padding: 3px 8px;
            border-radius: 4px;
            border: 1px solid var(--xy-border);
        }
        .xy-card-footer {
            border-top: 1px solid var(--xy-border-light);
            padding-top: 14px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .xy-card-rating {
            font-size: 0.82rem;
            color: var(--xy-accent);
            font-weight: 700;
        }

        /* 精选置顶大卡 */
        .xy-featured-hero-card {
            background: #ffffff;
            border-radius: var(--xy-radius-lg);
            border: 1px solid var(--xy-border);
            box-shadow: var(--xy-shadow-md);
            overflow: hidden;
            margin-bottom: 40px;
        }
        .xy-featured-inner {
            padding: 40px;
        }
        .xy-code-param-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }
        .xy-param-box {
            background: var(--xy-bg-light);
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid var(--xy-border);
        }
        .xy-param-label {
            font-size: 0.78rem;
            color: var(--xy-text-muted);
            display: block;
        }
        .xy-param-val {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--xy-text-main);
        }

        /* 场景化落地图文板块 */
        .xy-scene-panel {
            background: #ffffff;
            border: 1px solid var(--xy-border);
            border-radius: var(--xy-radius-lg);
            overflow: hidden;
            box-shadow: var(--xy-shadow-sm);
        }
        .xy-scene-content {
            padding: 40px;
        }
        .xy-feature-checklist {
            list-style: none;
            margin: 20px 0 0 0;
            padding: 0;
        }
        .xy-feature-checklist li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 14px;
            font-size: 0.94rem;
            color: var(--xy-text-body);
        }
        .xy-feature-checklist li i {
            position: absolute;
            left: 0;
            top: 4px;
            color: var(--xy-success);
        }

        /* 技术规格表格 */
        .xy-spec-table-wrapper {
            background: #ffffff;
            border-radius: var(--xy-radius);
            border: 1px solid var(--xy-border);
            overflow: hidden;
            box-shadow: var(--xy-shadow-sm);
        }
        .xy-spec-table {
            width: 100%;
            border-collapse: collapse;
            margin: 0;
        }
        .xy-spec-table th {
            background: #F1F5F9;
            color: var(--xy-text-main);
            font-weight: 700;
            font-size: 0.92rem;
            padding: 16px 20px;
            text-align: left;
            border-bottom: 1px solid var(--xy-border);
        }
        .xy-spec-table td {
            padding: 16px 20px;
            font-size: 0.9rem;
            border-bottom: 1px solid var(--xy-border-light);
            color: var(--xy-text-body);
        }
        .xy-spec-table tr:last-child td {
            border-bottom: none;
        }
        .xy-spec-table tr:hover td {
            background: var(--xy-bg-light);
        }

        /* 专题问答 FAQ 卡片 */
        .xy-faq-item {
            background: #ffffff;
            border-radius: var(--xy-radius);
            border: 1px solid var(--xy-border);
            padding: 24px;
            margin-bottom: 16px;
            box-shadow: var(--xy-shadow-sm);
        }
        .xy-faq-q {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--xy-text-main);
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 10px;
        }
        .xy-faq-q i {
            color: var(--xy-primary);
        }
        .xy-faq-a {
            font-size: 0.93rem;
            color: var(--xy-text-body);
            line-height: 1.7;
            margin: 0;
            padding-left: 28px;
        }

        /* 延伸文章列表 */
        .xy-news-card {
            background: #ffffff;
            border-radius: var(--xy-radius);
            border: 1px solid var(--xy-border);
            overflow: hidden;
            box-shadow: var(--xy-shadow-sm);
            height: 100%;
            transition: var(--xy-transition);
            display: flex;
            flex-direction: column;
        }
        .xy-news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--xy-shadow-md);
        }
        .xy-news-img-box {
            position: relative;
            height: 180px;
            overflow: hidden;
            background: #E2E8F0;
        }
        .xy-news-img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--xy-transition);
        }
        .xy-news-card:hover .xy-news-img-box img {
            transform: scale(1.05);
        }
        .xy-news-body {
            padding: 20px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        .xy-news-date {
            font-size: 0.78rem;
            color: var(--xy-text-muted);
            margin-bottom: 8px;
        }
        .xy-news-title {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--xy-text-main);
            line-height: 1.4;
            margin-bottom: 10px;
        }
        .xy-news-summary {
            font-size: 0.88rem;
            color: var(--xy-text-body);
            line-height: 1.6;
            margin-bottom: 14px;
            flex-grow: 1;
        }

        /* 专属底部转化面板 */
        .xy-cat-cta {
            background: linear-gradient(135deg, #1E1B4B 0%, #31104B 100%);
            border-radius: var(--xy-radius-lg);
            padding: 60px 40px;
            color: #ffffff;
            box-shadow: var(--xy-shadow-lg);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .xy-cat-cta h3 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 14px;
        }
        .xy-cat-cta p {
            font-size: 1.05rem;
            color: #CBD5E1;
            max-width: 680px;
            margin: 0 auto 30px auto;
            line-height: 1.7;
        }
        .xy-cta-btn-group {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* 页脚统一深色系统 */
        .xy-footer {
            background-color: #0F172A;
            color: #94A3B8;
            padding: 70px 0 30px 0;
            border-top: 1px solid #1E293B;
        }
        .xy-footer-title {
            color: #FFFFFF;
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        .xy-footer-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            background: var(--xy-primary-light);
        }
        .xy-footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .xy-footer-links li {
            margin-bottom: 10px;
        }
        .xy-footer-links a {
            color: #94A3B8;
            font-size: 0.9rem;
        }
        .xy-footer-links a:hover {
            color: #FFFFFF;
            padding-left: 4px;
        }
        .xy-footer-bottom {
            margin-top: 50px;
            padding-top: 24px;
            border-top: 1px solid #1E293B;
            font-size: 0.85rem;
            text-align: center;
            color: #64748B;
        }

        @media screen and (max-width: 1023px) {
            .xy-menu-links {
                display: none;
            }
            .xy-search-box input {
                width: 130px;
            }
            .xy-cat-h1 {
                font-size: 1.85rem;
            }
            .xy-featured-inner {
                padding: 24px;
            }
            .xy-code-param-list {
                grid-template-columns: 1fr;
            }
            .xy-scene-content {
                padding: 24px;
            }
            .xy-section {
                padding: 50px 0;
            }
        }
        @media screen and (max-width: 639px) {
            .xy-nav-actions .xy-search-box {
                display: none;
            }
            .xy-cat-h1 {
                font-size: 1.6rem;
            }
            .xy-filter-bar {
                flex-direction: column;
                align-items: flex-start;
            }
            .xy-cat-cta {
                padding: 40px 20px;
            }
            .xy-cat-cta h3 {
                font-size: 1.6rem;
            }
        }