/* roulang page: index */
:root {
            --bg-deep: #090d16;
            --bg-elevated: #0f172a;
            --bg-glass: rgba(15, 23, 42, 0.72);
            --bg-glass-hover: rgba(30, 41, 59, 0.82);
            --border-glass: rgba(255, 255, 255, 0.08);
            --border-glow: rgba(0, 242, 254, 0.35);
            --accent-cyan: #00f2fe;
            --accent-blue: #4facfe;
            --accent-purple: #7f00ff;
            --accent-neon: #e100ff;
            --text-main: #f8fafc;
            --text-sub: #94a3b8;
            --text-muted: #64748b;
            --sidebar-width: 270px;
            --glow-cyan: 0 0 20px rgba(0, 242, 254, 0.45);
            --glow-btn: 0 0 15px rgba(0, 242, 254, 0.4), 0 0 30px rgba(0, 242, 254, 0.15);
        }

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

        body {
            background: linear-gradient(135deg, #090d16 0%, #0c1220 50%, #0f172a 100%);
            background-attachment: fixed;
            color: var(--text-main);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            font-size: 15px;
            line-height: 1.75;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.25s ease;
        }

        /* 侧边竖向导航栏 (桌面端) */
        .sidebar-wrapper {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: rgba(9, 13, 22, 0.94);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-right: 1px solid var(--border-glass);
            z-index: 1040;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            padding: 1.75rem 1.25rem;
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .brand-logo-box {
            display: flex;
            align-items: center;
            gap: 12px;
            padding-bottom: 1.5rem;
            border-bottom: 1px solid var(--border-glass);
        }

        .brand-logo-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.3rem;
            box-shadow: var(--glow-cyan);
        }

        .brand-name {
            font-size: 1.05rem;
            font-weight: 800;
            letter-spacing: -0.2px;
            background: linear-gradient(90deg, #ffffff, #00f2fe);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.3;
        }

        .brand-badge {
            font-size: 0.7rem;
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 242, 254, 0.3);
            border-radius: 4px;
            padding: 1px 5px;
            display: inline-block;
            margin-top: 3px;
        }

        .side-nav-menu {
            list-style: none;
            margin: 1.5rem 0;
            flex-grow: 1;
            overflow-y: auto;
        }

        .side-nav-item {
            margin-bottom: 0.5rem;
        }

        .side-nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 0.75rem 1rem;
            border-radius: 8px;
            color: var(--text-sub);
            font-weight: 500;
            border: 1px solid transparent;
            transition: all 0.25s ease;
        }

        .side-nav-link i {
            width: 20px;
            text-align: center;
            font-size: 1.05rem;
            color: var(--text-muted);
            transition: color 0.25s ease;
        }

        .side-nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.04);
            border-color: rgba(255, 255, 255, 0.08);
        }

        .side-nav-link:hover i {
            color: var(--accent-cyan);
        }

        .side-nav-link.active {
            color: #ffffff;
            background: rgba(0, 242, 254, 0.08);
            border-color: var(--border-glow);
            box-shadow: inset 0 0 12px rgba(0, 242, 254, 0.15);
        }

        .side-nav-link.active i {
            color: var(--accent-cyan);
            text-shadow: 0 0 8px rgba(0, 242, 254, 0.8);
        }

        .sidebar-footer {
            padding-top: 1.25rem;
            border-top: 1px solid var(--border-glass);
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .status-dot {
            width: 8px;
            height: 8px;
            background: #10b981;
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 8px #10b981;
            margin-right: 6px;
        }

        /* 移动端顶部导航 */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: rgba(9, 13, 22, 0.95);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-glass);
            z-index: 1030;
            align-items: center;
            justify-content: space-between;
            padding: 0 1.25rem;
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: rgba(15, 23, 42, 0.98);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-glow);
            padding: 1.5rem;
            z-index: 1029;
            transform: translateY(-120%);
            transition: transform 0.3s ease;
        }

        .mobile-drawer.open {
            transform: translateY(0);
        }

        /* 主体内容区 */
        .content-workspace {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            width: calc(100% - var(--sidebar-width));
        }

        .main-container {
            flex: 1;
            padding: 2.5rem 3rem 4rem 3rem;
            max-width: 1400px;
        }

        /* 通用玻璃拟态卡片 */
        .glass-panel {
            background: var(--bg-glass);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-glass);
            border-radius: 14px;
            padding: 1.75rem;
            box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.05), 0 12px 32px rgba(0, 0, 0, 0.3);
            transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
            position: relative;
            overflow: hidden;
        }

        .glass-panel:hover {
            border-color: var(--border-glow);
            box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.1), 0 16px 36px rgba(0, 0, 0, 0.45);
        }

        /* 发光按钮 */
        .btn-glow-primary {
            background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
            color: #04101e;
            font-weight: 700;
            border: none;
            padding: 0.85rem 1.85rem;
            border-radius: 8px;
            box-shadow: var(--glow-btn);
            transition: all 0.25s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .btn-glow-primary:hover {
            color: #000;
            transform: translateY(-2px);
            box-shadow: 0 0 25px rgba(0, 242, 254, 0.6), 0 0 45px rgba(0, 242, 254, 0.25);
        }

        .btn-glow-secondary {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-main);
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, 0.15);
            padding: 0.85rem 1.65rem;
            border-radius: 8px;
            transition: all 0.25s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-glow-secondary:hover {
            background: rgba(0, 242, 254, 0.1);
            color: var(--accent-cyan);
            border-color: var(--accent-cyan);
        }

        /* 标题体系 */
        .section-header {
            margin-bottom: 2.25rem;
        }

        .section-tag {
            font-size: 0.78rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--accent-cyan);
            background: rgba(0, 242, 254, 0.08);
            border: 1px solid rgba(0, 242, 254, 0.25);
            padding: 4px 10px;
            border-radius: 4px;
            display: inline-block;
            margin-bottom: 0.75rem;
        }

        .section-title {
            font-size: 1.85rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.5px;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 0.98rem;
            color: var(--text-sub);
            max-width: 820px;
            margin-top: 0.5rem;
            line-height: 1.7;
        }

        /* 板块 1: Hero 线索获客与数据看板 */
        .hero-bento {
            margin-bottom: 4rem;
        }

        .hero-lead-box {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.9) 0%, rgba(13, 27, 62, 0.6) 100%);
            border: 1px solid var(--border-glow);
            border-radius: 16px;
            padding: 2.75rem 2.25rem;
            position: relative;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), inset 0 0 40px rgba(0, 242, 254, 0.05);
        }

        .hero-h1 {
            font-size: 2.35rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 1.25rem;
            background: linear-gradient(90deg, #ffffff 0%, #e2e8f0 50%, #00f2fe 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 1.05rem;
            color: var(--text-sub);
            line-height: 1.8;
            margin-bottom: 2rem;
            max-width: 900px;
        }

        .hero-action-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 1.25rem;
            align-items: center;
        }

        /* 指标看板 */
        .stat-card-row {
            margin-top: 1.75rem;
        }

        .metric-card {
            background: rgba(15, 23, 42, 0.65);
            border: 1px solid var(--border-glass);
            border-radius: 12px;
            padding: 1.5rem 1.25rem;
            text-align: center;
            transition: all 0.25s ease;
        }

        .metric-card:hover {
            border-color: var(--accent-cyan);
            transform: translateY(-3px);
            background: rgba(20, 32, 58, 0.7);
        }

        .metric-num {
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
            font-size: 2.25rem;
            font-weight: 800;
            background: linear-gradient(180deg, #ffffff, var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 0.35rem;
            display: block;
        }

        .metric-label {
            font-size: 0.88rem;
            color: var(--text-sub);
            font-weight: 500;
        }

        .metric-meta {
            font-size: 0.75rem;
            color: #10b981;
            margin-top: 0.35rem;
            display: block;
        }

        /* 板块 2: 服务矩阵 */
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
            margin-bottom: 4rem;
        }

        .matrix-card {
            padding: 2rem 1.75rem;
            border-radius: 14px;
        }

        .matrix-icon-wrap {
            width: 54px;
            height: 54px;
            border-radius: 12px;
            background: rgba(0, 242, 254, 0.08);
            border: 1px solid rgba(0, 242, 254, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-cyan);
            margin-bottom: 1.25rem;
        }

        .matrix-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--text-main);
        }

        .matrix-card p {
            font-size: 0.92rem;
            color: var(--text-sub);
            line-height: 1.75;
            margin-bottom: 1rem;
        }

        .matrix-points {
            list-style: none;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .matrix-points li {
            margin-bottom: 0.4rem;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .matrix-points li i {
            color: var(--accent-cyan);
            font-size: 0.75rem;
        }

        /* 板块 3: 结果对比 */
        .compare-container {
            margin-bottom: 4rem;
        }

        .compare-box {
            display: grid;
            grid-template-columns: 1fr 1fr;
            border-radius: 14px;
            overflow: hidden;
            border: 1px solid var(--border-glass);
        }

        .compare-side {
            padding: 2.25rem;
        }

        .compare-old {
            background: rgba(15, 23, 42, 0.45);
            border-right: 1px solid var(--border-glass);
        }

        .compare-new {
            background: rgba(0, 242, 254, 0.03);
            border: 1px solid var(--accent-cyan);
            box-shadow: inset 0 0 30px rgba(0, 242, 254, 0.08);
            position: relative;
        }

        .compare-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .compare-item {
            padding: 1rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

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

        .compare-label {
            font-weight: 600;
            font-size: 0.95rem;
        }

        .compare-val-old {
            color: #ef4444;
            font-size: 0.9rem;
        }

        .compare-val-new {
            color: var(--accent-cyan);
            font-weight: 700;
            font-size: 0.95rem;
            text-shadow: 0 0 8px rgba(0, 242, 254, 0.5);
        }

        /* 板块 4: 里程碑时间线 */
        .timeline-section {
            margin-bottom: 4rem;
        }

        .timeline-wrapper {
            position: relative;
            padding-left: 2rem;
        }

        .timeline-wrapper::before {
            content: '';
            position: absolute;
            top: 10px;
            bottom: 10px;
            left: 7px;
            width: 2px;
            background: linear-gradient(180deg, var(--accent-cyan), var(--accent-purple));
        }

        .timeline-node {
            position: relative;
            margin-bottom: 2rem;
        }

        .timeline-dot {
            position: absolute;
            left: -2rem;
            top: 6px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: #090d16;
            border: 3px solid var(--accent-cyan);
            box-shadow: 0 0 10px var(--accent-cyan);
        }

        .timeline-content {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: 10px;
            padding: 1.25rem 1.5rem;
        }

        .timeline-phase {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--accent-cyan);
            margin-bottom: 0.25rem;
        }

        .timeline-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .timeline-desc {
            font-size: 0.9rem;
            color: var(--text-sub);
            line-height: 1.65;
        }

        /* 板块 5: 专区精选入口 (核心分类页直达) */
        .category-portal-section {
            margin-bottom: 4rem;
        }

        .portal-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 1.75rem;
        }

        .portal-card {
            background: linear-gradient(145deg, rgba(15, 23, 42, 0.8), rgba(20, 32, 60, 0.7));
            border: 1px solid var(--border-glass);
            border-radius: 14px;
            padding: 2.25rem 2rem;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .portal-card:hover {
            border-color: var(--accent-cyan);
            transform: translateY(-4px);
            box-shadow: 0 15px 35px rgba(0, 242, 254, 0.15);
        }

        .portal-badge {
            align-self: flex-start;
            padding: 4px 10px;
            border-radius: 6px;
            font-size: 0.75rem;
            font-weight: 700;
            background: rgba(0, 242, 254, 0.1);
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 242, 254, 0.25);
            margin-bottom: 1.25rem;
        }

        .portal-title {
            font-size: 1.35rem;
            font-weight: 800;
            margin-bottom: 0.85rem;
        }

        .portal-desc {
            font-size: 0.92rem;
            color: var(--text-sub);
            line-height: 1.75;
            margin-bottom: 1.75rem;
        }

        .portal-link-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            color: var(--accent-cyan);
            border-bottom: 1px dashed var(--accent-cyan);
            padding-bottom: 2px;
            width: fit-content;
        }

        .portal-link-btn:hover {
            color: #ffffff;
            border-bottom-color: #ffffff;
        }

        /* 板块 6: 实时资讯列表 */
        .news-section {
            margin-bottom: 4rem;
        }

        .news-card-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 1.5rem;
        }

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

        .news-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.85rem;
        }

        .news-tag {
            font-size: 0.72rem;
            padding: 2px 8px;
            border-radius: 4px;
            background: rgba(127, 0, 255, 0.15);
            color: #d8b4fe;
            border: 1px solid rgba(127, 0, 255, 0.3);
        }

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

        .news-title {
            font-size: 1.12rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            line-height: 1.45;
        }

        .news-summary {
            font-size: 0.88rem;
            color: var(--text-sub);
            line-height: 1.68;
            margin-bottom: 1.25rem;
        }

        .news-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-muted);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 0.75rem;
        }

        /* 板块 7: 全生命周期技术保障 */
        .security-section {
            margin-bottom: 4rem;
        }

        .security-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 1.25rem;
        }

        .security-item {
            text-align: center;
            padding: 1.75rem 1.25rem;
        }

        .security-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(16, 185, 129, 0.1);
            color: #10b981;
            border: 1px solid rgba(16, 185, 129, 0.3);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            margin-bottom: 1rem;
        }

        .security-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

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

        /* 板块 8: 痛点即时释疑交互区 (Tabs) */
        .quick-section {
            margin-bottom: 4rem;
        }

        .custom-nav-tabs {
            border-bottom: 1px solid var(--border-glass);
            gap: 0.5rem;
            margin-bottom: 1.5rem;
        }

        .custom-nav-tabs .nav-link {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-glass);
            border-bottom: none;
            color: var(--text-sub);
            border-radius: 8px 8px 0 0;
            padding: 0.75rem 1.5rem;
            font-weight: 600;
        }

        .custom-nav-tabs .nav-link:hover {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.06);
        }

        .custom-nav-tabs .nav-link.active {
            background: rgba(15, 23, 42, 0.9);
            color: var(--accent-cyan);
            border-color: var(--border-glow);
            border-bottom-color: transparent;
            box-shadow: 0 -4px 12px rgba(0, 242, 254, 0.1);
        }

        .tab-detail-card {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: 0 12px 12px 12px;
            padding: 2rem;
        }

        .tab-detail-card h4 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.85rem;
            color: var(--text-main);
        }

        .tab-detail-card p {
            font-size: 0.94rem;
            color: var(--text-sub);
            line-height: 1.8;
            margin-bottom: 1rem;
        }

        /* 板块 9: 深度常见问答 (FAQ) */
        .faq-section {
            margin-bottom: 4rem;
        }

        .accordion-item {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: 10px !important;
            margin-bottom: 1rem;
            overflow: hidden;
        }

        .accordion-button {
            background: transparent;
            color: var(--text-main);
            font-weight: 700;
            font-size: 1rem;
            padding: 1.25rem 1.5rem;
            box-shadow: none !important;
        }

        .accordion-button:not(.collapsed) {
            background: rgba(0, 242, 254, 0.05);
            color: var(--accent-cyan);
            border-bottom: 1px solid var(--border-glass);
        }

        .accordion-button::after {
            filter: invert(1);
        }

        .accordion-body {
            padding: 1.5rem;
            color: var(--text-sub);
            font-size: 0.92rem;
            line-height: 1.75;
            background: rgba(9, 13, 22, 0.4);
        }

        /* 板块 10: 行业应用场景与垂直专题库 */
        .scenarios-section {
            margin-bottom: 4rem;
        }

        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
        }

        .scenario-card {
            border-radius: 12px;
            padding: 1.75rem;
            background: rgba(15, 23, 42, 0.65);
            border: 1px solid var(--border-glass);
            transition: all 0.25s ease;
        }

        .scenario-card:hover {
            border-color: var(--accent-cyan);
            transform: translateY(-3px);
        }

        .scenario-tag {
            font-size: 0.72rem;
            color: var(--accent-cyan);
            font-weight: 600;
            margin-bottom: 0.5rem;
            display: block;
        }

        .scenario-card h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.65rem;
        }

        .scenario-card p {
            font-size: 0.88rem;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* 板块 11: 商业对接与接入表单 */
        .connect-section {
            margin-bottom: 2rem;
        }

        .connect-form-card {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(13, 30, 68, 0.8));
            border: 1px solid var(--border-glow);
            border-radius: 16px;
            padding: 2.75rem 2.5rem;
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.6);
        }

        .form-control, .form-select {
            background: rgba(9, 13, 22, 0.7);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: #fff;
            padding: 0.75rem 1rem;
            border-radius: 8px;
            font-size: 0.92rem;
        }

        .form-control:focus, .form-select:focus {
            background: rgba(9, 13, 22, 0.95);
            border-color: var(--accent-cyan);
            color: #fff;
            box-shadow: 0 0 12px rgba(0, 242, 254, 0.3);
        }

        .form-label {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-sub);
            margin-bottom: 0.5rem;
        }

        /* 页脚 */
        .site-footer {
            background: rgba(5, 8, 14, 0.98);
            border-top: 1px solid var(--border-glass);
            padding: 3.5rem 0 2rem 0;
            margin-top: auto;
        }

        .footer-brand-title {
            font-size: 1.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.85rem;
        }

        .footer-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 380px;
        }

        .footer-col-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1.25rem;
            letter-spacing: 0.5px;
        }

        .footer-nav-list {
            list-style: none;
        }

        .footer-nav-list li {
            margin-bottom: 0.65rem;
        }

        .footer-nav-list a {
            color: var(--text-sub);
            font-size: 0.88rem;
        }

        .footer-nav-list a:hover {
            color: var(--accent-cyan);
            padding-left: 4px;
        }

        .footer-bottom {
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }

        /* 响应式断点控制 */
        @media (max-width: 991.98px) {
            .sidebar-wrapper {
                transform: translateX(-100%);
            }

            .mobile-header {
                display: flex;
            }

            .mobile-drawer {
                display: block;
            }

            .content-workspace {
                margin-left: 0;
                width: 100%;
                padding-top: 64px;
            }

            .main-container {
                padding: 1.75rem 1.25rem 3rem 1.25rem;
            }

            .compare-box {
                grid-template-columns: 1fr;
            }

            .compare-old {
                border-right: none;
                border-bottom: 1px solid var(--border-glass);
            }

            .hero-h1 {
                font-size: 1.75rem;
            }
        }

/* roulang page: category2 */
:root {
      --bg-deep: #090d16;
      --bg-elevated: #0f172a;
      --bg-glass: rgba(15, 23, 42, 0.72);
      --bg-glass-hover: rgba(30, 41, 59, 0.82);
      --border-glass: rgba(255, 255, 255, 0.08);
      --border-glow: rgba(0, 242, 254, 0.35);
      --accent-cyan: #00f2fe;
      --accent-blue: #4facfe;
      --accent-purple: #7f00ff;
      --accent-neon: #e100ff;
      --text-main: #f8fafc;
      --text-sub: #94a3b8;
      --text-muted: #64748b;
      --sidebar-width: 270px;
      --glow-cyan: 0 0 20px rgba(0, 242, 254, 0.45);
      --glow-btn: 0 0 15px rgba(0, 242, 254, 0.4), 0 0 30px rgba(0, 242, 254, 0.15);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      background: linear-gradient(135deg, #090d16 0%, #0c1220 50%, #0f172a 100%);
      background-attachment: fixed;
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      font-size: 15px;
      line-height: 1.75;
      min-height: 100vh;
      overflow-x: hidden;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }
    /* 侧边竖向导航栏 (桌面端) */
    .sidebar-wrapper {
      position: fixed;
      top: 0;
      left: 0;
      width: var(--sidebar-width);
      height: 100vh;
      background: rgba(9, 13, 22, 0.94);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-right: 1px solid var(--border-glass);
      z-index: 1040;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      padding: 1.75rem 1.25rem;
      transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .side-nav-logo {
      display: flex;
      flex-direction: column;
      padding-bottom: 1.25rem;
      border-bottom: 1px solid var(--border-glass);
    }
    .logo-main {
      font-size: 1.05rem;
      font-weight: 800;
      letter-spacing: -0.2px;
      background: linear-gradient(90deg, #ffffff, #00f2fe);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      line-height: 1.35;
    }
    .logo-sub {
      font-size: 0.72rem;
      color: var(--accent-cyan);
      margin-top: 4px;
      letter-spacing: 0.5px;
    }
    .side-nav-links {
      list-style: none;
      margin: 1.5rem 0;
      flex-grow: 1;
      padding: 0;
      display: flex;
      flex-direction: column;
      gap: 0.5rem;
    }
    .side-nav-link {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 0.75rem 1rem;
      border-radius: 8px;
      color: var(--text-sub);
      font-weight: 500;
      border: 1px solid transparent;
      transition: all 0.25s ease;
    }
    .side-nav-link .nav-icon {
      font-size: 1rem;
      color: var(--text-muted);
      transition: color 0.25s ease;
    }
    .side-nav-link:hover {
      color: #fff;
      background: rgba(255, 255, 255, 0.04);
      border-color: rgba(255, 255, 255, 0.08);
    }
    .side-nav-link:hover .nav-icon {
      color: var(--accent-cyan);
    }
    .side-nav-link.active {
      color: #ffffff;
      background: rgba(0, 242, 254, 0.08);
      border-color: var(--border-glow);
      box-shadow: inset 0 0 12px rgba(0, 242, 254, 0.15);
    }
    .side-nav-link.active .nav-icon {
      color: var(--accent-cyan);
      text-shadow: 0 0 8px rgba(0, 242, 254, 0.8);
    }
    .side-nav-footer {
      padding-top: 1.25rem;
      border-top: 1px solid var(--border-glass);
      font-size: 0.8rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #10b981;
      box-shadow: 0 0 8px #10b981;
    }
    /* 移动端顶部导航 */
    .mobile-header {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      height: 64px;
      background: rgba(9, 13, 22, 0.95);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-glass);
      z-index: 1030;
      align-items: center;
      justify-content: space-between;
      padding: 0 1.25rem;
    }
    .mobile-brand {
      font-size: 1rem;
      font-weight: 800;
      background: linear-gradient(90deg, #ffffff, #00f2fe);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .mobile-toggler {
      background: none;
      border: 1px solid var(--border-glass);
      color: #fff;
      padding: 6px 12px;
      border-radius: 6px;
      font-size: 1.1rem;
    }
    .mobile-drawer {
      display: none;
      position: fixed;
      top: 64px;
      left: 0;
      right: 0;
      background: rgba(15, 23, 42, 0.98);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--border-glow);
      padding: 1.25rem;
      z-index: 1029;
      transform: translateY(-120%);
      transition: transform 0.3s ease;
    }
    .mobile-drawer.open {
      transform: translateY(0);
      display: block;
    }
    .mobile-drawer ul {
      list-style: none;
      padding: 0;
      margin: 0;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .mobile-drawer a {
      display: block;
      padding: 10px 14px;
      border-radius: 6px;
      color: var(--text-sub);
    }
    .mobile-drawer a.active {
      color: #fff;
      background: rgba(0, 242, 254, 0.12);
      border-left: 3px solid var(--accent-cyan);
    }
    /* 主体布局 */
    .page-layout {
      margin-left: var(--sidebar-width);
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }
    .main-content {
      flex: 1;
      padding: 2.5rem 3rem 4rem 3rem;
      max-width: 1440px;
    }
    /* 通用玻璃卡片与视觉件 */
    .glass-card {
      background: var(--bg-glass);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--border-glass);
      border-radius: 12px;
      box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.05);
      transition: all 0.3s ease;
    }
    .glass-card:hover {
      background: var(--bg-glass-hover);
      border-color: var(--border-glow);
      transform: translateY(-3px);
      box-shadow: 0 10px 30px rgba(0, 242, 254, 0.12), inset 0 1px 1px rgba(255, 255, 255, 0.1);
    }
    .btn-glow-primary {
      background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
      color: #04101e;
      font-weight: 700;
      border: none;
      padding: 0.75rem 1.6rem;
      border-radius: 8px;
      box-shadow: var(--glow-btn);
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }
    .btn-glow-primary:hover {
      color: #000;
      transform: translateY(-2px);
      box-shadow: 0 0 25px rgba(0, 242, 254, 0.65), 0 0 45px rgba(0, 242, 254, 0.3);
    }
    .btn-glass-secondary {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-glass);
      color: var(--text-main);
      font-weight: 600;
      padding: 0.75rem 1.6rem;
      border-radius: 8px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-glass-secondary:hover {
      background: rgba(255, 255, 255, 0.12);
      border-color: rgba(255, 255, 255, 0.2);
      color: #fff;
    }
    .pill-tag {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      font-size: 0.75rem;
      font-weight: 600;
      padding: 3px 9px;
      border-radius: 999px;
      background: rgba(0, 242, 254, 0.08);
      border: 1px solid rgba(0, 242, 254, 0.25);
      color: var(--accent-cyan);
    }
    .pill-tag.purple {
      background: rgba(127, 0, 255, 0.1);
      border-color: rgba(127, 0, 255, 0.3);
      color: #c084fc;
    }
    .section-title-wrap {
      margin-bottom: 2rem;
    }
    .section-badge {
      font-size: 0.8rem;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--accent-cyan);
      font-weight: 700;
      margin-bottom: 0.5rem;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .section-title {
      font-size: 1.65rem;
      font-weight: 800;
      color: #fff;
      line-height: 1.35;
    }
    .section-desc {
      color: var(--text-sub);
      font-size: 0.95rem;
      margin-top: 0.35rem;
      max-width: 800px;
    }
    /* 板块一：分类主题检索与定义 H1 横幅 */
    .cat-banner-pane {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.85) 0%, rgba(30, 41, 59, 0.5) 100%);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border: 1px solid rgba(0, 242, 254, 0.25);
      border-radius: 16px;
      padding: 2.25rem 2.5rem;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), inset 0 1px 1px rgba(255, 255, 255, 0.1);
      position: relative;
      overflow: hidden;
    }
    .cat-banner-pane::after {
      content: "";
      position: absolute;
      top: -40px;
      right: -40px;
      width: 240px;
      height: 240px;
      background: radial-gradient(circle, rgba(0, 242, 254, 0.15) 0%, transparent 70%);
      pointer-events: none;
    }
    .cat-h1 {
      font-size: 2.1rem;
      font-weight: 800;
      line-height: 1.3;
      color: #ffffff;
      margin-bottom: 0.85rem;
    }
    .cat-h1-sub {
      color: var(--text-sub);
      font-size: 1rem;
      line-height: 1.7;
    }
    .banner-search-box {
      background: rgba(9, 13, 22, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: 10px;
      padding: 0.4rem 0.5rem 0.4rem 1rem;
      display: flex;
      align-items: center;
      gap: 10px;
      box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.5);
    }
    .banner-search-input {
      background: transparent;
      border: none;
      outline: none;
      color: #fff;
      font-size: 0.9rem;
      flex: 1;
    }
    .banner-search-input::placeholder {
      color: var(--text-muted);
    }
    /* 板块二：多维属性实时筛选组件 */
    .filter-panel {
      background: rgba(15, 23, 42, 0.55);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 1px solid var(--border-glass);
      border-radius: 12px;
      padding: 1.25rem 1.75rem;
    }
    .filter-row {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 0.75rem;
      padding: 0.6rem 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    .filter-row:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }
    .filter-label {
      font-size: 0.82rem;
      font-weight: 700;
      color: var(--text-muted);
      min-width: 80px;
    }
    .filter-pill {
      font-size: 0.82rem;
      padding: 4px 14px;
      border-radius: 6px;
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.08);
      color: var(--text-sub);
      cursor: pointer;
      user-select: none;
      transition: all 0.2s ease;
    }
    .filter-pill:hover {
      background: rgba(255, 255, 255, 0.08);
      color: #fff;
    }
    .filter-pill.active {
      background: rgba(0, 242, 254, 0.15);
      border-color: var(--accent-cyan);
      color: #fff;
      font-weight: 600;
      box-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
    }
    /* 板块三：核心资源流网格主体 */
    .stream-card {
      overflow: hidden;
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .stream-card-cover {
      height: 165px;
      background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
      position: relative;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
      border-bottom: 1px solid var(--border-glass);
    }
    .stream-card-mesh {
      position: absolute;
      inset: 0;
      background-image: radial-gradient(rgba(0, 242, 254, 0.15) 1px, transparent 0);
      background-size: 16px 16px;
      opacity: 0.6;
    }
    .stream-card-glyph {
      font-size: 2.8rem;
      background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      z-index: 1;
      filter: drop-shadow(0 0 15px rgba(0, 242, 254, 0.4));
    }
    .stream-card-badge {
      position: absolute;
      top: 12px;
      left: 12px;
      z-index: 2;
    }
    .stream-card-body {
      padding: 1.4rem;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .stream-card-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: #fff;
      line-height: 1.4;
      margin-bottom: 0.65rem;
    }
    .stream-card-desc {
      font-size: 0.88rem;
      color: var(--text-sub);
      line-height: 1.65;
      margin-bottom: 1.25rem;
      flex: 1;
    }
    .stream-card-meta {
      border-top: 1px solid var(--border-glass);
      padding-top: 0.85rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 0.78rem;
      color: var(--text-muted);
    }
    /* 板块四：深度关联专题与聚合推荐 */
    .featured-strip-card {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.8) 0%, rgba(30, 41, 59, 0.6) 100%);
      border: 1px solid rgba(0, 242, 254, 0.2);
      border-radius: 14px;
      padding: 2rem;
      display: flex;
      gap: 1.5rem;
      align-items: flex-start;
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.35);
      transition: all 0.3s ease;
    }
    .featured-strip-card:hover {
      border-color: var(--accent-cyan);
      box-shadow: 0 10px 30px rgba(0, 242, 254, 0.15);
      transform: translateY(-2px);
    }
    .strip-icon-box {
      width: 58px;
      height: 58px;
      border-radius: 12px;
      background: linear-gradient(135deg, rgba(0, 242, 254, 0.15), rgba(127, 0, 255, 0.25));
      border: 1px solid rgba(0, 242, 254, 0.3);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-cyan);
      font-size: 1.6rem;
      flex-shrink: 0;
    }
    .strip-content h4 {
      font-size: 1.25rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 0.5rem;
    }
    .strip-content p {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.7;
      margin-bottom: 1rem;
    }
    /* 板块五：类目专项技术指引与操作规范 */
    .step-flow-card {
      background: var(--bg-glass);
      border: 1px solid var(--border-glass);
      border-radius: 12px;
      padding: 1.75rem;
      position: relative;
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .step-number {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
      color: #000;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 1.25rem;
      font-size: 1rem;
      box-shadow: 0 0 15px rgba(0, 242, 254, 0.4);
    }
    .step-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 0.65rem;
    }
    .step-desc {
      font-size: 0.88rem;
      color: var(--text-sub);
      line-height: 1.7;
      margin-bottom: 1rem;
    }
    .step-code-preview {
      background: rgba(9, 13, 22, 0.85);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 6px;
      padding: 0.6rem 0.85rem;
      font-family: "SFMono-Regular", Consolas, Menlo, monospace;
      font-size: 0.78rem;
      color: var(--accent-cyan);
      margin-top: auto;
    }
    /* 板块六：分类专项答疑与排障指引 */
    .trouble-card {
      background: var(--bg-glass);
      border: 1px solid var(--border-glass);
      border-radius: 12px;
      padding: 1.6rem;
      height: 100%;
    }
    .trouble-q {
      font-size: 1.05rem;
      font-weight: 700;
      color: #fff;
      display: flex;
      align-items: baseline;
      gap: 10px;
      margin-bottom: 0.85rem;
    }
    .trouble-q-tag {
      font-size: 0.75rem;
      padding: 2px 7px;
      border-radius: 4px;
      background: rgba(225, 0, 255, 0.15);
      border: 1px solid rgba(225, 0, 255, 0.4);
      color: #f472b6;
      font-weight: 700;
    }
    .trouble-a {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.75;
    }
    /* 板块七：底部翻页控制器与单向更多入口 */
    .catalog-action-bar {
      background: rgba(15, 23, 42, 0.6);
      border: 1px solid var(--border-glass);
      border-radius: 12px;
      padding: 1.5rem 2rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 1.25rem;
    }
    .pagination-box {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .p-btn {
      width: 38px;
      height: 38px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 8px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--border-glass);
      color: var(--text-sub);
      font-size: 0.88rem;
      font-weight: 600;
      transition: all 0.2s ease;
    }
    .p-btn:hover {
      background: rgba(255, 255, 255, 0.1);
      color: #fff;
      border-color: rgba(255, 255, 255, 0.2);
    }
    .p-btn.active {
      background: rgba(0, 242, 254, 0.15);
      border-color: var(--accent-cyan);
      color: #fff;
      box-shadow: 0 0 10px rgba(0, 242, 254, 0.3);
    }
    /* 页脚 */
    .site-footer {
      background: rgba(9, 13, 22, 0.98);
      border-top: 1px solid var(--border-glass);
      padding: 4rem 3rem 2rem 3rem;
      color: var(--text-sub);
    }
    .footer-brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 0.75rem;
      letter-spacing: -0.2px;
    }
    .footer-desc {
      font-size: 0.9rem;
      line-height: 1.8;
      max-width: 480px;
    }
    .footer-col-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 1.2rem;
      letter-spacing: 0.5px;
    }
    .footer-nav-list {
      list-style: none;
      margin: 0;
      display: flex;
      flex-direction: column;
      gap: 0.75rem;
      font-size: 0.9rem;
    }
    .footer-nav-list a {
      color: var(--text-sub);
    }
    .footer-nav-list a:hover {
      color: var(--accent-cyan);
    }
    .footer-bottom-bar {
      border-top: 1px solid var(--border-glass);
      margin-top: 3.5rem;
      padding-top: 1.5rem;
      font-size: 0.82rem;
      color: var(--text-muted);
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 1rem;
    }
    /* 响应式断点控制 */
    @media (max-width: 991.98px) {
      .sidebar-wrapper {
        display: none;
      }
      .mobile-header {
        display: flex;
      }
      .page-layout {
        margin-left: 0;
        padding-top: 64px;
      }
      .main-content {
        padding: 1.5rem 1.25rem 3rem 1.25rem;
      }
      .site-footer {
        padding: 3rem 1.25rem 1.5rem 1.25rem;
      }
      .cat-banner-pane {
        padding: 1.75rem 1.5rem;
      }
      .cat-h1 {
        font-size: 1.65rem;
      }
    }

/* roulang page: category1 */
:root {
      --bg-deep: #090d16;
      --bg-elevated: #0f172a;
      --bg-glass: rgba(15, 23, 42, 0.72);
      --bg-glass-hover: rgba(30, 41, 59, 0.82);
      --border-glass: rgba(255, 255, 255, 0.08);
      --border-glow: rgba(0, 242, 254, 0.35);
      --accent-cyan: #00f2fe;
      --accent-blue: #4facfe;
      --accent-purple: #7f00ff;
      --accent-neon: #e100ff;
      --text-main: #f8fafc;
      --text-sub: #94a3b8;
      --text-muted: #64748b;
      --sidebar-width: 270px;
      --glow-cyan: 0 0 20px rgba(0, 242, 254, 0.45);
      --glow-btn: 0 0 15px rgba(0, 242, 254, 0.4), 0 0 30px rgba(0, 242, 254, 0.15);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      background: linear-gradient(135deg, #090d16 0%, #0c1220 50%, #0f172a 100%);
      background-attachment: fixed;
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      font-size: 15px;
      line-height: 1.75;
      min-height: 100vh;
      overflow-x: hidden;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }
    a:hover {
      color: var(--accent-cyan);
    }

    /* 侧边竖向导航栏 (桌面端) */
    .sidebar-wrapper {
      position: fixed;
      top: 0;
      left: 0;
      width: var(--sidebar-width);
      height: 100vh;
      background: rgba(9, 13, 22, 0.94);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-right: 1px solid var(--border-glass);
      z-index: 1040;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      padding: 1.75rem 1.25rem;
      transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .brand-logo-box {
      display: flex;
      align-items: center;
      gap: 12px;
      padding-bottom: 1.5rem;
      border-bottom: 1px solid var(--border-glass);
    }
    .brand-logo-icon {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1.3rem;
      box-shadow: var(--glow-cyan);
      flex-shrink: 0;
    }
    .brand-name {
      font-size: 1.05rem;
      font-weight: 800;
      letter-spacing: -0.2px;
      background: linear-gradient(90deg, #ffffff, #00f2fe);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      line-height: 1.3;
    }
    .brand-badge {
      font-size: 0.7rem;
      color: var(--accent-cyan);
      border: 1px solid rgba(0, 242, 254, 0.3);
      border-radius: 4px;
      padding: 1px 5px;
      display: inline-block;
      margin-top: 3px;
    }
    .side-nav-menu {
      list-style: none;
      margin: 1.5rem 0;
      flex-grow: 1;
      overflow-y: auto;
    }
    .side-nav-item {
      margin-bottom: 0.5rem;
    }
    .side-nav-link {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 0.75rem 1rem;
      border-radius: 8px;
      color: var(--text-sub);
      font-weight: 500;
      border: 1px solid transparent;
      transition: all 0.25s ease;
    }
    .side-nav-link i, .side-nav-link .nav-icon {
      width: 20px;
      text-align: center;
      font-size: 1.05rem;
      color: var(--text-muted);
      transition: color 0.25s ease;
    }
    .side-nav-link:hover {
      color: #fff;
      background: rgba(255, 255, 255, 0.04);
      border-color: rgba(255, 255, 255, 0.08);
    }
    .side-nav-link:hover i, .side-nav-link:hover .nav-icon {
      color: var(--accent-cyan);
    }
    .side-nav-link.active {
      color: #ffffff;
      background: rgba(0, 242, 254, 0.08);
      border-color: var(--border-glow);
      box-shadow: inset 0 0 12px rgba(0, 242, 254, 0.15);
    }
    .side-nav-link.active i, .side-nav-link.active .nav-icon {
      color: var(--accent-cyan);
      text-shadow: 0 0 8px rgba(0, 242, 254, 0.8);
    }
    .sidebar-footer {
      padding-top: 1.25rem;
      border-top: 1px solid var(--border-glass);
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 移动端顶部导航 */
    .mobile-header {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      height: 64px;
      background: rgba(9, 13, 22, 0.95);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-glass);
      z-index: 1030;
      align-items: center;
      justify-content: space-between;
      padding: 0 1.25rem;
    }
    .mobile-drawer {
      display: none;
      position: fixed;
      top: 64px;
      left: 0;
      right: 0;
      background: rgba(15, 23, 42, 0.98);
      backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--border-glow);
      padding: 1.5rem;
      z-index: 1029;
      transform: translateY(-120%);
      transition: transform 0.3s ease;
    }
    .mobile-drawer.open {
      transform: translateY(0);
    }

    /* 主内容视口容器 */
    .app-layout {
      margin-left: var(--sidebar-width);
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }
    .main-container {
      flex: 1;
      padding: 2.5rem 3rem 4rem 3rem;
      max-width: 1440px;
      margin: 0 auto;
      width: 100%;
    }

    /* 玻璃卡片基础 */
    .glass-card {
      background: var(--bg-glass);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--border-glass);
      border-radius: 12px;
      box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.08);
      transition: all 0.3s ease;
    }
    .glass-card:hover {
      background: var(--bg-glass-hover);
      border-color: var(--border-glow);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4), inset 0 1px 1px rgba(255, 255, 255, 0.15);
    }

    /* 发光按钮 */
    .btn-glow-primary {
      background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
      color: #04101e;
      font-weight: 700;
      border: none;
      padding: 0.75rem 1.75rem;
      border-radius: 8px;
      box-shadow: var(--glow-btn);
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }
    .btn-glow-primary:hover {
      color: #000;
      box-shadow: 0 0 25px rgba(0, 242, 254, 0.65), 0 0 45px rgba(0, 242, 254, 0.3);
      transform: translateY(-2px);
    }
    .btn-glass-secondary {
      background: rgba(255, 255, 255, 0.05);
      color: var(--text-main);
      border: 1px solid var(--border-glass);
      padding: 0.75rem 1.5rem;
      border-radius: 8px;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: all 0.25s ease;
    }
    .btn-glass-secondary:hover {
      color: #fff;
      background: rgba(255, 255, 255, 0.1);
      border-color: var(--border-glow);
      transform: translateY(-2px);
    }

    /* 板块通用间距与标题 */
    .section-block {
      margin-bottom: 3.5rem;
    }
    .section-header {
      margin-bottom: 1.75rem;
    }
    .section-title {
      font-size: 1.55rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 12px;
      letter-spacing: -0.3px;
    }
    .section-title::before {
      content: '';
      display: inline-block;
      width: 4px;
      height: 1.25rem;
      background: linear-gradient(180deg, var(--accent-cyan), var(--accent-purple));
      border-radius: 2px;
    }
    .section-subtitle {
      font-size: 0.92rem;
      color: var(--text-sub);
      margin-top: 0.35rem;
      margin-left: 1rem;
    }

    /* 板块一：分类主题检索与定义 H1 横幅 */
    .cat-hero-panel {
      padding: 2.25rem;
      position: relative;
      overflow: hidden;
    }
    .cat-hero-panel::before {
      content: '';
      position: absolute;
      top: -80px;
      right: -80px;
      width: 260px;
      height: 260px;
      background: radial-gradient(circle, rgba(0, 242, 254, 0.15) 0%, transparent 70%);
      pointer-events: none;
    }
    .cat-h1 {
      font-size: 2.1rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      line-height: 1.3;
      margin-bottom: 0.75rem;
      background: linear-gradient(90deg, #ffffff 30%, var(--accent-cyan) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .cat-lead {
      color: var(--text-sub);
      font-size: 1.02rem;
      line-height: 1.7;
      max-width: 780px;
      margin-bottom: 1.5rem;
    }
    .cat-search-box {
      position: relative;
      max-width: 520px;
    }
    .cat-search-input {
      width: 100%;
      background: rgba(9, 13, 22, 0.7);
      border: 1px solid var(--border-glow);
      border-radius: 8px;
      padding: 0.85rem 3rem 0.85rem 1.25rem;
      color: #fff;
      font-size: 0.95rem;
      outline: none;
      box-shadow: 0 0 15px rgba(0, 242, 254, 0.12);
      transition: all 0.25s ease;
    }
    .cat-search-input:focus {
      border-color: var(--accent-cyan);
      box-shadow: 0 0 20px rgba(0, 242, 254, 0.35);
      background: rgba(9, 13, 22, 0.9);
    }
    .cat-search-btn {
      position: absolute;
      right: 8px;
      top: 50%;
      transform: translateY(-50%);
      background: transparent;
      border: none;
      color: var(--accent-cyan);
      font-size: 1.15rem;
      padding: 6px 12px;
      cursor: pointer;
    }
    .cat-hot-tags {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      margin-top: 1rem;
      font-size: 0.85rem;
    }
    .cat-hot-label {
      color: var(--text-muted);
    }
    .cat-hot-item {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-glass);
      padding: 2px 10px;
      border-radius: 4px;
      color: var(--text-sub);
      font-size: 0.8rem;
    }

    /* 板块二：多维属性实时筛选组件 */
    .filter-panel {
      padding: 1.5rem;
    }
    .filter-row {
      display: flex;
      align-items: center;
      gap: 1.25rem;
      padding: 0.65rem 0;
      border-bottom: 1px dashed rgba(255, 255, 255, 0.06);
    }
    .filter-row:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }
    .filter-row:first-child {
      padding-top: 0;
    }
    .filter-label {
      width: 90px;
      flex-shrink: 0;
      font-size: 0.86rem;
      font-weight: 600;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .filter-pill-group {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .filter-pill {
      font-size: 0.82rem;
      padding: 4px 12px;
      border-radius: 20px;
      background: rgba(255, 255, 255, 0.04);
      color: var(--text-sub);
      border: 1px solid transparent;
      cursor: pointer;
      user-select: none;
      transition: all 0.2s ease;
    }
    .filter-pill:hover {
      color: #fff;
      background: rgba(255, 255, 255, 0.08);
      border-color: rgba(255, 255, 255, 0.15);
    }
    .filter-pill.active {
      background: rgba(0, 242, 254, 0.12);
      color: var(--accent-cyan;
      border-color: rgba(0, 242, 254, 0.4);
      box-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
    }

    /* 板块三：核心资源流网格主体 */
    .stream-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.5rem;
    }
    .stream-card {
      display: flex;
      flex-direction: column;
      height: 100%;
      border-radius: 12px;
      overflow: hidden;
      position: relative;
    }
    .stream-card:hover {
      transform: translateY(-4px);
    }
    .stream-card-cover {
      height: 150px;
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.9), rgba(30, 41, 59, 0.8));
      position: relative;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
      border-bottom: 1px solid var(--border-glass);
    }
    .stream-cover-bg-icon {
      font-size: 4.5rem;
      color: rgba(255, 255, 255, 0.03);
      position: absolute;
      right: 15px;
      bottom: -10px;
      transition: all 0.4s ease;
    }
    .stream-card:hover .stream-cover-bg-icon {
      color: rgba(0, 242, 254, 0.08);
      transform: scale(1.1) rotate(-5deg);
    }
    .stream-badge-top {
      position: absolute;
      top: 12px;
      left: 12px;
      background: rgba(9, 13, 22, 0.75);
      backdrop-filter: blur(8px);
      border: 1px solid var(--border-glow);
      color: var(--accent-cyan);
      font-size: 0.75rem;
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 600;
    }
    .stream-metric-tag {
      position: absolute;
      bottom: 10px;
      right: 12px;
      background: rgba(0, 0, 0, 0.65);
      border-radius: 4px;
      padding: 2px 8px;
      font-size: 0.75rem;
      color: #cbd5e1;
      font-family: monospace;
    }
    .stream-card-body {
      padding: 1.4rem;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .stream-card-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 0.65rem;
      line-height: 1.45;
    }
    .stream-card-desc {
      color: var(--text-sub);
      font-size: 0.88rem;
      line-height: 1.65;
      margin-bottom: 1.25rem;
      flex: 1;
    }
    .stream-card-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-top: 0.9rem;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      font-size: 0.8rem;
      color: var(--text-muted);
    }
    .stream-meta-spec {
      color: var(--accent-cyan);
      font-weight: 600;
    }

    /* 板块四：深度关联专题与聚合推荐 */
    .featured-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 1.5rem;
    }
    .featured-card {
      padding: 1.75rem;
      position: relative;
      overflow: hidden;
    }
    .featured-card::before {
      content: '';
      position: absolute;
      left: 0;
      top: 0;
      bottom: 0;
      width: 4px;
      background: linear-gradient(180deg, var(--accent-cyan), var(--accent-purple));
    }
    .featured-tag {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      text-transform: uppercase;
      color: var(--accent-cyan);
      letter-spacing: 0.5px;
      margin-bottom: 0.5rem;
    }
    .featured-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 0.75rem;
    }
    .featured-desc {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.7;
      margin-bottom: 1.25rem;
    }
    .featured-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .featured-chip {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--border-glass);
      padding: 3px 10px;
      border-radius: 4px;
      font-size: 0.78rem;
      color: #cbd5e1;
    }

    /* 板块五：类目专项技术指引与操作规范 */
    .workflow-steps-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.5rem;
    }
    .workflow-step-card {
      padding: 1.6rem;
      position: relative;
    }
    .step-number {
      font-size: 2.2rem;
      font-weight: 900;
      color: rgba(0, 242, 254, 0.15);
      line-height: 1;
      position: absolute;
      top: 1.2rem;
      right: 1.2rem;
      font-family: monospace;
    }
    .step-icon-wrap {
      width: 46px;
      height: 46px;
      border-radius: 8px;
      background: rgba(0, 242, 254, 0.08);
      border: 1px solid rgba(0, 242, 254, 0.25);
      color: var(--accent-cyan);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      margin-bottom: 1.1rem;
    }
    .step-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 0.6rem;
    }
    .step-desc {
      font-size: 0.88rem;
      color: var(--text-sub);
      line-height: 1.65;
    }

    /* 板块六：分类专项答疑与排障指引 */
    .qa-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.5rem;
    }
    .qa-card {
      padding: 1.5rem;
      display: flex;
      flex-direction: column;
    }
    .qa-q {
      font-size: 1.02rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 0.75rem;
      display: flex;
      gap: 8px;
      line-height: 1.45;
    }
    .qa-q-icon {
      color: var(--accent-cyan);
      flex-shrink: 0;
      margin-top: 2px;
    }
    .qa-a {
      font-size: 0.88rem;
      color: var(--text-sub);
      line-height: 1.65;
      flex: 1;
    }

    /* 板块七：底部翻页控制器与单向更多入口 */
    .pagination-bar {
      padding: 1.5rem 2rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 1rem;
    }
    .page-indicator-wrap {
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .page-btn {
      min-width: 38px;
      height: 38px;
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.88rem;
      font-weight: 600;
      background: rgba(255, 255, 255, 0.04);
      color: var(--text-sub);
      border: 1px solid var(--border-glass);
      cursor: pointer;
      user-select: none;
      transition: all 0.2s ease;
    }
    .page-btn:hover {
      color: #fff;
      background: rgba(255, 255, 255, 0.08);
      border-color: rgba(255, 255, 255, 0.18);
    }
    .page-btn.active {
      background: rgba(0, 242, 254, 0.15);
      border-color: var(--accent-cyan);
      color: var(--accent-cyan);
      box-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
    }

    /* 页脚 */
    .site-footer {
      background: rgba(6, 9, 15, 0.95);
      border-top: 1px solid var(--border-glass);
      padding: 3.5rem 0 2rem 0;
      margin-top: auto;
    }
    .footer-brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      background: linear-gradient(90deg, #ffffff, var(--accent-cyan));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 0.85rem;
    }
    .footer-desc {
      color: var(--text-sub);
      font-size: 0.88rem;
      line-height: 1.7;
    }
    .footer-col-title {
      font-size: 1rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 1.1rem;
      position: relative;
      padding-bottom: 0.4rem;
    }
    .footer-col-title::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: 0;
      width: 24px;
      height: 2px;
      background: var(--accent-cyan);
    }
    .footer-nav-list {
      list-style: none;
    }
    .footer-nav-list li {
      margin-bottom: 0.65rem;
      font-size: 0.88rem;
    }
    .footer-nav-list a {
      color: var(--text-sub);
    }
    .footer-nav-list a:hover {
      color: var(--accent-cyan);
      padding-left: 3px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 1.5rem;
      margin-top: 2.5rem;
      font-size: 0.82rem;
      color: var(--text-muted);
      text-align: center;
    }

    /* 响应式断点控制 */
    @media (max-width: 1200px) {
      .stream-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .qa-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 991.98px) {
      .sidebar-wrapper {
        display: none;
      }
      .app-layout {
        margin-left: 0;
        padding-top: 64px;
      }
      .mobile-header {
        display: flex;
      }
      .mobile-drawer {
        display: block;
      }
      .main-container {
        padding: 1.75rem 1.25rem 3rem 1.25rem;
      }
      .workflow-steps-grid {
        grid-template-columns: 1fr;
      }
      .featured-grid {
        grid-template-columns: 1fr;
      }
      .cat-h1 {
        font-size: 1.65rem;
      }
    }
    @media (max-width: 767.98px) {
      .stream-grid {
        grid-template-columns: 1fr;
      }
      .qa-grid {
        grid-template-columns: 1fr;
      }
      .filter-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
      }
      .filter-label {
        width: 100%;
      }
      .pagination-bar {
        flex-direction: column;
        align-items: stretch;
      }
      .page-indicator-wrap {
        justify-content: center;
      }
    }

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