/* roulang page: index */
:root {
            --bg-deep: #060b18;
            --bg-card: rgba(16, 30, 65, 0.65);
            --bg-card-hover: rgba(22, 42, 90, 0.85);
            --bg-section-alt: #0a1227;
            --primary-blue: #0052ff;
            --cyan-glow: #00e5ff;
            --accent-green: #00e676;
            --text-title: #f0f6fc;
            --text-body: #a5b6d4;
            --text-muted: #6e82a8;
            --border-glow: rgba(0, 229, 255, 0.18);
            --border-active: rgba(0, 229, 255, 0.45);
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-glow: 0 0 24px rgba(0, 229, 255, 0.25);
            --max-w: 1280px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-deep);
            color: var(--text-body);
            line-height: 1.7;
            font-size: 15px;
            overflow-x: hidden;
        }

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

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

        .container {
            width: 100%;
            max-width: var(--max-w);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部通栏 */
        .topbar {
            background-color: rgba(6, 11, 24, 0.95);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 13px;
            color: var(--text-muted);
            padding: 8px 0;
        }
        .topbar-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .status-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .status-dot {
            width: 8px;
            height: 8px;
            background-color: var(--accent-green);
            border-radius: 50%;
            box-shadow: 0 0 8px var(--accent-green);
        }

        /* 主导航 */
        header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(6, 11, 24, 0.85);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-glow);
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.5px;
        }
        .logo-icon {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--primary-blue), var(--cyan-glow));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            box-shadow: 0 0 12px var(--cyan-glow);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }
        .nav-links a {
            color: #cbd5e1;
            font-size: 15px;
            font-weight: 500;
        }
        .nav-links a:hover {
            color: var(--cyan-glow);
            text-shadow: 0 0 8px var(--cyan-glow);
        }
        .btn-glow {
            background: linear-gradient(135deg, var(--primary-blue), var(--cyan-glow));
            color: #fff;
            font-weight: 600;
            padding: 10px 22px;
            border-radius: 6px;
            box-shadow: 0 0 16px rgba(0, 229, 255, 0.35);
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-glow:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 24px rgba(0, 229, 255, 0.6);
            color: #fff;
        }

        /* 移动端菜单开关 */
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 6px;
        }
        .mobile-toggle span {
            width: 24px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
        }

        /* Section 标准容器 */
        section {
            padding: 90px 0;
            position: relative;
        }
        .section-alt {
            background-color: var(--bg-section-alt);
        }
        .section-head {
            text-align: center;
            max-width: 820px;
            margin: 0 auto 56px auto;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--cyan-glow);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            background: rgba(0, 229, 255, 0.08);
            border: 1px solid var(--border-glow);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: 34px;
            font-weight: 700;
            color: var(--text-title);
            line-height: 1.35;
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-body);
            line-height: 1.8;
        }

        /* 玻璃拟态卡片 */
        .glass-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: 32px;
            transition: all 0.3s ease;
        }
        .glass-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-active);
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
        }

        /* 板块 1: Hero (裂变邀请与实时看板组合形态) */
        .hero-section {
            background: radial-gradient(circle at 50% 20%, #122857 0%, var(--bg-deep) 70%), url('/assets/images/0c8f4998e2b7870c.jpg') center/cover no-repeat;
            background-blend-mode: overlay;
            padding: 110px 0 90px 0;
            position: relative;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
        }
        .hero-title {
            font-size: 46px;
            font-weight: 800;
            line-height: 1.25;
            color: #fff;
            margin-bottom: 24px;
        }
        .hero-title span {
            background: linear-gradient(135deg, #fff, var(--cyan-glow));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-lead {
            font-size: 16px;
            color: #b5c7e4;
            line-height: 1.8;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            gap: 18px;
            margin-bottom: 36px;
        }
        .btn-outline {
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 10px 24px;
            border-radius: 6px;
            color: #fff;
            font-weight: 500;
        }
        .btn-outline:hover {
            border-color: var(--cyan-glow);
            color: var(--cyan-glow);
            background: rgba(0, 229, 255, 0.05);
        }
        /* 裂变激励卡 */
        .fission-box {
            background: rgba(16, 30, 65, 0.8);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-md);
            padding: 24px;
        }
        .fission-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 12px;
            font-weight: 600;
            color: #fff;
        }
        .fission-progress {
            background: rgba(255, 255, 255, 0.1);
            height: 10px;
            border-radius: 5px;
            overflow: hidden;
            margin-bottom: 12px;
        }
        .fission-bar {
            width: 78%;
            height: 100%;
            background: linear-gradient(90deg, var(--primary-blue), var(--cyan-glow));
            box-shadow: 0 0 10px var(--cyan-glow);
        }
        .fission-meta {
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 侧边终端面板 */
        .console-panel {
            background: rgba(10, 20, 48, 0.85);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
        }
        .console-head {
            display: flex;
            justify-content: space-between;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            padding-bottom: 14px;
            margin-bottom: 20px;
            font-weight: 600;
            color: #fff;
        }
        .device-metric {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-bottom: 20px;
        }
        .metric-mini-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.05);
            padding: 16px;
            border-radius: 8px;
        }
        .metric-mini-title {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 6px;
        }
        .metric-mini-val {
            font-size: 22px;
            font-weight: 700;
            color: var(--cyan-glow);
        }

        /* 板块 2: 数据驱动指标看板 */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .metric-card-num {
            font-size: 40px;
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
            margin-bottom: 8px;
            background: linear-gradient(135deg, #fff, var(--cyan-glow));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .metric-card-title {
            font-size: 17px;
            color: #fff;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .metric-card-text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 板块 3: 智慧社区全景服务矩阵 */
        .matrix-container {
            display: grid;
            grid-template-columns: 0.8fr 1.2fr;
            gap: 36px;
            align-items: center;
        }
        .matrix-tabs {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .matrix-tab-btn {
            background: rgba(16, 30, 65, 0.5);
            border: 1px solid var(--border-glow);
            padding: 20px;
            border-radius: var(--radius-md);
            text-align: left;
            cursor: pointer;
            transition: all 0.3s;
        }
        .matrix-tab-btn.active, .matrix-tab-btn:hover {
            background: rgba(0, 82, 255, 0.2);
            border-color: var(--cyan-glow);
            box-shadow: 0 0 16px rgba(0, 229, 255, 0.2);
        }
        .matrix-tab-btn h4 {
            color: #fff;
            font-size: 17px;
            margin-bottom: 6px;
        }
        .matrix-tab-btn p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
        }
        .matrix-display {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-glow);
        }
        .matrix-display-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(0deg, rgba(6, 11, 24, 0.95) 10%, transparent 100%);
            padding: 32px;
        }

        /* 板块 4: 核心竞争优势集群 (3x2 网格) */
        .advantage-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .advantage-icon {
            width: 48px;
            height: 48px;
            background: rgba(0, 229, 255, 0.1);
            border: 1px solid var(--border-glow);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--cyan-glow);
            margin-bottom: 20px;
        }
        .advantage-title {
            font-size: 19px;
            color: #fff;
            font-weight: 600;
            margin-bottom: 12px;
        }

        /* 板块 5: 传统社区与智慧化转型对比 */
        .compare-table {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .compare-col {
            padding: 36px;
            border-radius: var(--radius-lg);
        }
        .compare-col.legacy {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .compare-col.smart {
            background: rgba(16, 30, 65, 0.8);
            border: 1px solid var(--cyan-glow);
            box-shadow: 0 0 30px rgba(0, 229, 255, 0.15);
        }
        .compare-header {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 24px;
            padding-bottom: 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .compare-item {
            margin-bottom: 20px;
        }
        .compare-item-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 4px;
        }
        .compare-item-val {
            font-size: 16px;
            color: #fff;
        }
        .compare-col.legacy .compare-item-val {
            color: #94a3b8;
        }

        /* 板块 6: 核心产品版本矩阵 */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            align-items: center;
        }
        .pricing-card.highlight {
            transform: scale(1.05);
            border-color: var(--cyan-glow);
            box-shadow: 0 0 36px rgba(0, 229, 255, 0.25);
            background: rgba(16, 35, 80, 0.9);
        }
        .pricing-title {
            font-size: 22px;
            color: #fff;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .pricing-scale {
            color: var(--cyan-glow);
            font-size: 13px;
            margin-bottom: 24px;
        }
        .pricing-features {
            list-style: none;
            margin-bottom: 32px;
        }
        .pricing-features li {
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .pricing-features li::before {
            content: "✓";
            color: var(--accent-green);
            font-weight: bold;
        }

        /* 板块 7: 平台安全保障体系 */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .security-item {
            text-align: center;
            padding: 32px 20px;
        }
        .security-badge {
            width: 60px;
            height: 60px;
            margin: 0 auto 16px;
            border-radius: 50%;
            background: rgba(0, 229, 255, 0.08);
            border: 1px solid var(--border-glow);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--cyan-glow);
        }

        /* 板块 8: 演进与工程交付里程碑 */
        .timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        .timeline::before {
            content: "";
            position: absolute;
            top: 36px;
            left: 20px;
            right: 20px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-blue), var(--cyan-glow));
            z-index: 1;
        }
        .timeline-node {
            position: relative;
            z-index: 2;
        }
        .node-dot {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--bg-deep);
            border: 4px solid var(--cyan-glow);
            margin-bottom: 24px;
            box-shadow: 0 0 12px var(--cyan-glow);
        }
        .node-step {
            font-size: 13px;
            color: var(--cyan-glow);
            font-weight: 700;
            margin-bottom: 8px;
        }
        .node-title {
            font-size: 17px;
            color: #fff;
            font-weight: 600;
            margin-bottom: 8px;
        }

        /* 板块 9: 典型落地案例深读 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .case-card {
            overflow: hidden;
            padding: 0;
        }
        .case-img {
            height: 200px;
            width: 100%;
            object-fit: cover;
        }
        .case-body {
            padding: 28px;
        }
        .case-tag {
            font-size: 12px;
            color: var(--cyan-glow);
            margin-bottom: 8px;
            font-weight: 600;
        }
        .case-name {
            font-size: 19px;
            color: #fff;
            font-weight: 700;
            margin-bottom: 12px;
        }

        /* 板块 10: 行业资讯与白皮书 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .news-card-date {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .news-card-title {
            font-size: 18px;
            color: #fff;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 12px;
        }
        .news-card-title:hover {
            color: var(--cyan-glow);
        }

        /* 板块 11: 常见问题手风琴 */
        .faq-accordion {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-md);
            overflow: hidden;
        }
        .faq-q {
            padding: 22px 28px;
            color: #fff;
            font-size: 17px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .faq-q::after {
            content: "+";
            font-size: 20px;
            color: var(--cyan-glow);
            transition: transform 0.3s;
        }
        .faq-item.active .faq-q::after {
            transform: rotate(45deg);
        }
        .faq-a {
            padding: 0 28px 22px 28px;
            color: var(--text-body);
            line-height: 1.8;
            display: none;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 16px;
        }
        .faq-item.active .faq-a {
            display: block;
        }

        /* 板块 12: 需求评估与转化收口表单 */
        .form-wrap {
            max-width: 800px;
            margin: 0 auto;
            background: linear-gradient(135deg, rgba(16, 30, 65, 0.95), rgba(6, 11, 24, 0.98));
            border: 1px solid var(--cyan-glow);
            box-shadow: 0 0 40px rgba(0, 229, 255, 0.2);
            border-radius: var(--radius-lg);
            padding: 44px;
        }
        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 24px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .form-group.full {
            grid-column: span 2;
        }
        .form-label {
            font-size: 14px;
            color: #fff;
            font-weight: 500;
        }
        .form-control {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.15);
            padding: 12px 16px;
            border-radius: 6px;
            color: #fff;
            outline: none;
            font-size: 14px;
            transition: border-color 0.2s;
        }
        .form-control:focus {
            border-color: var(--cyan-glow);
            box-shadow: 0 0 10px rgba(0, 229, 255, 0.3);
        }
        .form-submit {
            width: 100%;
            padding: 14px;
            font-size: 16px;
            justify-content: center;
        }

        /* 页脚 */
        footer {
            background-color: #040710;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 70px 0 30px;
            color: var(--text-muted);
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
            gap: 40px;
            margin-bottom: 50px;
        }
        .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col h5 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 20px;
            font-weight: 600;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col a:hover {
            color: var(--cyan-glow);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .hero-grid, .matrix-container, .compare-table {
                grid-template-columns: 1fr;
            }
            .metrics-grid, .advantage-grid, .pricing-grid, .security-grid, .timeline, .case-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .pricing-card.highlight {
                transform: none;
            }
            .timeline::before {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .mobile-toggle {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(6, 11, 24, 0.98);
                flex-direction: column;
                padding: 30px 24px;
                border-bottom: 1px solid var(--border-glow);
                display: none;
            }
            .nav-links.open {
                display: flex;
            }
            .header-cta {
                display: none;
            }
            .metrics-grid, .advantage-grid, .pricing-grid, .security-grid, .timeline, .case-grid, .news-grid, .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 32px;
            }
            .section-title {
                font-size: 26px;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-group.full {
                grid-column: span 1;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
        }