/* ========== 全局基础样式 ========== */
        :root {
            --primary: #00FFC8;
            --primary-dark: #00D4A8;
            --primary-light: #66FFDC;
            --accent: #7C3AED;
            --cyan: #38BDF8;
            --success: #00E5A0;
            --warning: #FFB800;
            --bg: #060608;
            --bg-2: #0A0A12;
            --card: #0D0D18;
            --card-2: #121222;
            --text: #EDEDF5;
            --text-secondary: #9A9AB0;
            --text-muted: #666680;
            --border: #1E1E32;
            --radius: 18px;
            --radius-sm: 12px;
            --shadow: 0 8px 30px rgba(0,0,0,0.45);
            --shadow-lg: 0 18px 50px rgba(0,0,0,0.6);
            --gradient: linear-gradient(135deg, #00FFC8, #38BDF8);
            --gradient-soft: linear-gradient(135deg, rgba(0,255,200,0.1), rgba(56,189,248,0.1));
            --glow-green: 0 0 30px rgba(0,255,200,0.3);
            --glow-purple: 0 0 30px rgba(124,58,237,0.3);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            color: var(--text);
            background: var(--bg);
            line-height: 1.7;
            overflow-x: hidden;
        }

        /* ========== 进度条 ========== */
        .progress-bar {
            position: fixed;
            top: 0;
            left: 0;
            height: 3px;
            background: var(--gradient);
            z-index: 10001;
            width: 0;
            transition: width .2s;
        }

        /* ========== 信任栏 ========== */
        .trustbar {
            background: #0D0D18;
            color: #B0B0C8;
            font-size: 12px;
            padding: 8px 0;
            position: relative;
            z-index: 10002;
            border-bottom: 1px solid var(--border);
        }
        .trustbar-inner {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .trustbar a {
            color: var(--primary);
            text-decoration: none;
        }
        .trustbar a:hover {
            color: var(--primary-light);
        }

        /* ========== 头部导航 ========== */
        .header {
            position: fixed;
            top: 36px;
            left: 0;
            right: 0;
            z-index: 10000;
            padding: 14px 0;
            transition: all .3s;
        }
        .header.scrolled {
            top: 0;
            background: rgba(6,6,8,0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            box-shadow: 0 1px 0 rgba(255,255,255,0.05);
            border-bottom: 1px solid rgba(30,30,50,0.7);
        }
        .header-inner {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            font-size: 22px;
            font-weight: 800;
            color: #fff;
        }
        .logo img {
            height: 36px;
            width: auto;
        }
        .logo .logo-tag {
            font-size: 11px;
            color: var(--primary);
            border: 1px solid rgba(0,255,200,0.4);
            border-radius: 20px;
            padding: 2px 8px;
            letter-spacing: 0.5px;
        }
        .nav {
            display: flex;
            align-items: center;
            gap: 22px;
            list-style: none;
        }
        .nav a {
            text-decoration: none;
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            transition: color .2s;
            white-space: nowrap;
            position: relative;
        }
        .nav a::after {
            content: '';
            position: absolute;
            left: 50%;
            bottom: -6px;
            width: 0;
            height: 2px;
            background: var(--gradient);
            transition: all .25s;
            transform: translateX(-50%);
            border-radius: 2px;
        }
        .nav a:hover {
            color: #fff;
        }
        .nav a:hover::after {
            width: 100%;
        }
        .nav a.active {
            color: var(--primary);
        }
        .nav a.active::after {
            width: 100%;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 22px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 700;
            text-decoration: none;
            cursor: pointer;
            border: none;
            transition: all .25s;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--gradient);
            color: #060608;
            box-shadow: 0 6px 22px rgba(0,255,200,0.3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(0,255,200,0.45);
        }
        .btn-outline {
            border: 2px solid rgba(0,255,200,0.6);
            color: var(--primary);
            background: transparent;
        }
        .btn-outline:hover {
            background: rgba(0,255,200,0.08);
            color: var(--primary-light);
        }
        .btn-lg {
            padding: 16px 34px;
            font-size: 17px;
            border-radius: 12px;
        }
        .btn-xl {
            padding: 20px 46px;
            font-size: 19px;
            border-radius: 14px;
        }
        .btn-ghost {
            background: rgba(255,255,255,0.05);
            color: #fff;
            border: 1px solid rgba(255,255,255,0.12);
        }
        .btn-ghost:hover {
            background: rgba(255,255,255,0.1);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            background: none;
            border: none;
            padding: 8px;
        }
        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all .3s;
        }

        /* ========== 通用Section ========== */
        .section {
            padding: 96px 24px;
        }
        .section-inner {
            max-width: 1280px;
            margin: 0 auto;
        }
        .section-label {
            text-align: center;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 3px;
            margin-bottom: 14px;
        }
        .section-title {
            text-align: center;
            font-size: clamp(28px, 3.4vw, 40px);
            font-weight: 800;
            margin-bottom: 16px;
            color: #fff;
        }
        .section-desc {
            text-align: center;
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 680px;
            margin: 0 auto 54px;
        }

        /* ========== 创意板块1：六大洲节点分布图 ========== */
        .node-map-section {
            background: var(--bg-2);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .node-map-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }
        .continent-card {
            background: var(--card);
            border-radius: var(--radius);
            padding: 28px 20px;
            border: 1px solid var(--border);
            text-align: center;
            transition: all .3s;
            position: relative;
            overflow: hidden;
        }
        .continent-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient);
            opacity: 0;
            transition: opacity .3s;
        }
        .continent-card:hover {
            transform: translateY(-6px);
            border-color: rgba(0,255,200,0.5);
            box-shadow: var(--shadow-lg), var(--glow-green);
        }
        .continent-card:hover::before {
            opacity: 1;
        }
        .continent-icon {
            font-size: 52px;
            margin-bottom: 14px;
        }
        .continent-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .continent-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .node-count {
            display: inline-block;
            background: rgba(0,255,200,0.1);
            color: var(--primary);
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 700;
        }

        /* ========== 创意板块2：全球延迟热力图 ========== */
        .heatmap-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 8px;
            margin-top: 40px;
        }
        .heatmap-cell {
            background: var(--card);
            border-radius: 8px;
            padding: 16px 8px;
            text-align: center;
            border: 1px solid var(--border);
            transition: all .3s;
            cursor: default;
        }
        .heatmap-cell:hover {
            border-color: var(--primary);
            box-shadow: var(--glow-green);
            transform: scale(1.05);
        }
        .heatmap-cell .city {
            font-size: 13px;
            font-weight: 700;
            color: #fff;
        }
        .heatmap-cell .ping {
            font-size: 22px;
            font-weight: 800;
            margin: 4px 0;
        }
        .ping.green {
            color: var(--success);
        }
        .ping.cyan {
            color: var(--cyan);
        }
        .ping.gold {
            color: var(--warning);
        }
        .ping.orange {
            color: #FF6B6B;
        }
        .heatmap-cell .bar {
            height: 4px;
            background: rgba(255,255,255,0.08);
            border-radius: 2px;
            margin-top: 6px;
            overflow: hidden;
        }
        .heatmap-cell .bar .fill {
            height: 100%;
            border-radius: 2px;
        }
        .fill.green {
            background: var(--success);
        }
        .fill.cyan {
            background: var(--cyan);
        }
        .fill.gold {
            background: var(--warning);
        }
        .fill.orange {
            background: #FF6B6B;
        }

        /* ========== 创意板块3：节点类型图例 ========== */
        .node-types-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }
        .node-type-card {
            background: var(--card);
            border-radius: var(--radius-sm);
            padding: 24px 18px;
            border: 1px solid var(--border);
            text-align: center;
            transition: all .3s;
        }
        .node-type-card:hover {
            border-color: var(--primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }
        .node-type-icon {
            font-size: 40px;
            margin-bottom: 12px;
        }
        .node-type-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .node-type-card p {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .node-type-badge {
            display: inline-block;
            background: rgba(0,255,200,0.1);
            color: var(--primary);
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 11px;
            font-weight: 700;
            margin-top: 10px;
        }

        /* ========== 创意板块4：智能调度中枢 ========== */
        .dispatch-section {
            background: linear-gradient(160deg, #0A0A16, #0D0D1A);
            border-radius: var(--radius);
            padding: 40px 30px;
            border: 1px solid var(--border);
            margin-top: 40px;
        }
        .dispatch-visual {
            display: flex;
            align-items: center;
            gap: 30px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .dispatch-brain {
            font-size: 100px;
            animation: float 4s ease-in-out infinite;
        }
        @keyframes float {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-10px);
            }
        }
        .dispatch-lines {
            flex: 1;
            min-width: 280px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .dispatch-line {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            background: rgba(255,255,255,0.04);
            border-radius: 10px;
            border-left: 3px solid var(--primary);
            font-size: 14px;
            color: var(--text-secondary);
        }
        .dispatch-line .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 10px rgba(0,255,200,0.6);
            flex-shrink: 0;
        }

        /* ========== 创意板块5：跨国专线性能指标 ========== */
        .metrics-showcase {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }
        .metric-card {
            background: var(--card);
            border-radius: var(--radius-sm);
            padding: 24px 16px;
            border: 1px solid var(--border);
            text-align: center;
            transition: all .3s;
        }
        .metric-card:hover {
            border-color: var(--primary);
            box-shadow: var(--glow-green);
        }
        .metric-value {
            font-size: 34px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .metric-label {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ========== 创意板块6：城市级节点详情表 ========== */
        .city-node-table-wrapper {
            overflow-x: auto;
            margin-top: 40px;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            background: var(--card);
        }
        .city-node-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 800px;
        }
        .city-node-table th {
            text-align: left;
            padding: 14px 16px;
            font-size: 12px;
            font-weight: 700;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            border-bottom: 1px solid var(--border);
            background: rgba(255,255,255,0.02);
        }
        .city-node-table td {
            padding: 14px 16px;
            font-size: 14px;
            color: var(--text-secondary);
            border-bottom: 1px solid rgba(255,255,255,0.04);
            transition: background .2s;
        }
        .city-node-table tbody tr:last-child td {
            border-bottom: none;
        }
        .city-node-table tbody tr:hover td {
            background: rgba(0,255,200,0.05);
        }
        .status-indicator {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 700;
            color: var(--success);
        }
        .status-indicator .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--success);
            box-shadow: 0 0 8px rgba(0,229,160,0.6);
        }
        .ping-value {
            font-weight: 700;
        }
        .ping-value.green {
            color: var(--success);
        }
        .ping-value.cyan {
            color: var(--cyan);
        }

        /* ========== 创意板块7：网络扩展时间轴 ========== */
        .timeline-section {
            background: var(--bg-2);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 40px auto 0;
            padding-left: 32px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--primary), var(--cyan), var(--accent));
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            padding-bottom: 30px;
        }
        .timeline-item:last-child {
            padding-bottom: 0;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 16px rgba(0,255,200,0.5);
        }
        .timeline-item .year {
            font-size: 14px;
            font-weight: 800;
            color: var(--primary);
        }
        .timeline-item h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin: 4px 0 6px;
        }
        .timeline-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== 创意板块8：区域测速展示 ========== */
        .speedtest-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 40px;
        }
        .speedtest-card {
            background: var(--card);
            border-radius: var(--radius-sm);
            padding: 20px 16px;
            border: 1px solid var(--border);
            text-align: center;
            transition: all .3s;
        }
        .speedtest-card:hover {
            border-color: var(--primary);
            box-shadow: var(--glow-green);
        }
        .speedtest-card .flag {
            font-size: 36px;
            margin-bottom: 10px;
        }
        .speedtest-card .city {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
        }
        .speedtest-card .download {
            font-size: 26px;
            font-weight: 800;
            color: var(--primary);
            margin: 6px 0;
        }
        .speedtest-card .upload {
            font-size: 13px;
            color: var(--text-secondary);
        }
        .speedtest-card .upload span {
            color: var(--cyan);
            font-weight: 700;
        }

        /* ========== 创意板块9：对比优势矩阵 ========== */
        .compare-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 40px;
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
        }
        .compare-card {
            background: var(--card);
            border-radius: var(--radius);
            padding: 30px 24px;
            border: 1px solid var(--border);
        }
        .compare-card.highlight {
            border-color: var(--primary);
            box-shadow: var(--glow-green);
        }
        .compare-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 14px;
            color: #fff;
            text-align: center;
        }
        .compare-card ul {
            list-style: none;
        }
        .compare-card ul li {
            padding: 8px 0;
            font-size: 14px;
            color: var(--text-secondary);
            border-bottom: 1px solid rgba(255,255,255,0.04);
        }
        .compare-card ul li:last-child {
            border-bottom: none;
        }
        .compare-card ul li::before {
            content: '✓ ';
            color: var(--success);
            font-weight: 700;
        }
        .compare-card.highlight ul li::before {
            content: '✦ ';
            color: var(--primary);
        }

        /* ========== 创意板块10：节点健康度监控面板 ========== */
        .health-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 10px;
            margin-top: 40px;
        }
        .health-card {
            background: var(--card);
            border-radius: 10px;
            padding: 14px 8px;
            text-align: center;
            border: 1px solid var(--border);
            transition: all .3s;
        }
        .health-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow);
        }
        .health-card .city {
            font-size: 12px;
            font-weight: 700;
            color: #fff;
        }
        .health-card .health-score {
            font-size: 24px;
            font-weight: 800;
            margin: 4px 0;
        }
        .health-score.excellent {
            color: var(--success);
        }
        .health-score.good {
            color: var(--cyan);
        }
        .health-score.fair {
            color: var(--warning);
        }
        .health-card .health-bar {
            height: 4px;
            background: rgba(255,255,255,0.08);
            border-radius: 2px;
            overflow: hidden;
            margin-top: 6px;
        }
        .health-card .health-bar .fill {
            height: 100%;
            border-radius: 2px;
        }
        .health-bar .fill.excellent {
            background: var(--success);
            width: 98%;
        }
        .health-bar .fill.good {
            background: var(--cyan);
            width: 92%;
        }
        .health-bar .fill.fair {
            background: var(--warning);
            width: 85%;
        }

        /* ========== 创意板块11：用户场景推荐器 ========== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 40px;
        }
        .scenario-card {
            background: var(--card);
            border-radius: var(--radius);
            padding: 26px 20px;
            border: 1px solid var(--border);
            text-align: center;
            transition: all .3s;
        }
        .scenario-card:hover {
            border-color: var(--primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .scenario-icon {
            font-size: 40px;
            margin-bottom: 12px;
        }
        .scenario-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .scenario-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 10px;
        }
        .recommend-node {
            display: inline-block;
            background: var(--gradient-soft);
            color: var(--primary);
            padding: 5px 14px;
            border-radius: 16px;
            font-size: 12px;
            font-weight: 700;
            border: 1px solid rgba(0,255,200,0.25);
        }

        /* ========== 创意板块12：高可用与冗余设计 ========== */
        .fault-tolerance-section {
            background: var(--bg-2);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .fault-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 40px;
        }
        .fault-card {
            background: var(--card);
            border-radius: var(--radius);
            padding: 28px 24px;
            border: 1px solid var(--border);
            text-align: center;
            transition: all .3s;
        }
        .fault-card:hover {
            border-color: rgba(0,255,200,0.5);
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }
        .fault-icon {
            font-size: 44px;
            margin-bottom: 14px;
        }
        .fault-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .fault-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== Footer ========== */
        .footer {
            background: #040406;
            color: #9A9AB0;
            padding: 64px 24px 30px;
            border-top: 1px solid var(--border);
        }
        .footer-inner {
            max-width: 1280px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
            gap: 40px;
        }
        .footer h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer a {
            color: #9A9AB0;
            text-decoration: none;
            font-size: 14px;
            display: block;
            margin-bottom: 9px;
            transition: color .2s;
        }
        .footer a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            margin: 14px 0;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-brand .footer-logo img {
            height: 32px;
        }
        .footer-brand .footer-logo span {
            color: #fff;
            font-size: 20px;
            font-weight: 800;
        }
        .footer-warning {
            margin-top: 20px;
            padding: 12px 16px;
            background: rgba(255,184,0,0.06);
            border: 1px solid rgba(255,184,0,0.22);
            border-radius: 10px;
            font-size: 13px;
            color: var(--warning);
            line-height: 1.7;
        }
        .footer-bottom {
            max-width: 1280px;
            margin: 44px auto 0;
            padding-top: 26px;
            border-top: 1px solid rgba(255,255,255,0.08);
            text-align: center;
            font-size: 13px;
            color: #666680;
        }
        .footer-bottom a {
            color: #9A9AB0;
            display: inline;
        }
        .friend-links {
            margin-top: 20px;
            padding: 16px 0;
            text-align: center;
        }
        .friend-links a {
            display: inline !important;
            margin: 0 8px;
        }

        /* ========== 粘性CTA ========== */
        .sticky-cta {
            position: fixed;
            bottom: 24px;
            right: 24px;
            z-index: 9999;
        }
        .sticky-cta .btn-circle {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--gradient);
            color: #060608;
            border: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            box-shadow: 0 6px 26px rgba(0,255,200,0.4);
            animation: float 2s ease-in-out infinite;
            text-decoration: none;
        }
        .sticky-cta .btn-circle:hover {
            transform: scale(1.1);
        }

        /* ========== 响应式布局 ========== */
        @media (max-width:1024px) {
            .node-map-grid,
            .metrics-showcase,
            .node-types-grid,
            .speedtest-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .fault-grid,
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .heatmap-grid,
            .health-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .compare-grid {
                grid-template-columns: 1fr;
            }
            .dispatch-visual {
                flex-direction: column;
            }
        }
        @media (max-width:768px) {
            .nav {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(6,6,8,0.97);
                backdrop-filter: blur(20px);
                padding: 20px;
                gap: 16px;
                border-bottom: 1px solid var(--border);
            }
            .nav.open {
                display: flex;
            }
            .hamburger {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            .node-map-grid,
            .metrics-showcase,
            .node-types-grid,
            .speedtest-grid,
            .fault-grid,
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .heatmap-grid,
            .health-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
            .city-node-table-wrapper {
                overflow-x: auto;
            }
        }