/* roulang page: index */
:root {
            --bg-primary: #0A0E1A;
            --bg-secondary: #0F172A;
            --bg-card: rgba(15, 23, 42, 0.72);
            --border-glass: rgba(255, 255, 255, 0.08);
            --border-active: rgba(0, 102, 255, 0.45);
            --primary-blue: #0066FF;
            --cyan-accent: #00D2FF;
            --success-green: #10B981;
            --text-pure: #FFFFFF;
            --text-main: #E2E8F0;
            --text-muted: #94A3B8;
            --text-sub: #64748B;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --shadow-glow: 0 0 25px rgba(0, 102, 255, 0.45);
            --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.6);
            --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-main);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
            background-color: var(--bg-primary);
        }

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

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

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部通告与全局导航 */
        .top-ticker {
            background: #060911;
            border-bottom: 1px solid var(--border-glass);
            font-size: 13px;
            color: var(--text-muted);
            padding: 8px 0;
        }
        .top-ticker-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .badge-pulse {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--success-green);
        }
        .pulse-dot {
            width: 8px;
            height: 8px;
            background-color: var(--success-green);
            border-radius: 50%;
            box-shadow: 0 0 10px var(--success-green);
        }

        header.sticky-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(10, 14, 26, 0.82);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-glass);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 74px;
        }
        .logo-text {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0.5px;
            background: linear-gradient(135deg, #FFFFFF 30%, var(--cyan-accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo-text::before {
            content: "";
            display: inline-block;
            width: 12px;
            height: 12px;
            background: var(--primary-blue);
            border-radius: 3px;
            box-shadow: 0 0 12px var(--cyan-accent);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }
        .nav-menu a {
            font-size: 15px;
            color: var(--text-muted);
            font-weight: 500;
        }
        .nav-menu a:hover, .nav-menu a.active {
            color: var(--cyan-accent);
        }
        .btn-header-cta {
            background: linear-gradient(135deg, var(--primary-blue), #0052cc);
            color: var(--text-pure);
            padding: 9px 20px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 0 16px rgba(0, 102, 255, 0.4);
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        .btn-header-cta:hover {
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        /* 移动端菜单控制 */
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-pure);
            font-size: 24px;
            cursor: pointer;
        }

        /* 统一Section样式 */
        section {
            padding: 90px 0;
            position: relative;
        }
        .section-dark {
            background-color: var(--bg-primary);
        }
        .section-slate {
            background-color: var(--bg-secondary);
            border-top: 1px solid var(--border-glass);
            border-bottom: 1px solid var(--border-glass);
        }
        .section-header {
            margin-bottom: 48px;
            text-align: left;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--cyan-accent);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 12px;
            background: rgba(0, 210, 255, 0.08);
            padding: 4px 12px;
            border-radius: 4px;
            border: 1px solid rgba(0, 210, 255, 0.2);
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-pure);
            line-height: 1.3;
            margin-bottom: 14px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 820px;
            line-height: 1.7;
        }

        /* 按钮与组件 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary-blue), #004edb);
            color: var(--text-pure);
            padding: 13px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            box-shadow: 0 0 20px rgba(0, 102, 255, 0.45);
            border: 1px solid rgba(255, 255, 255, 0.15);
            cursor: pointer;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(0, 210, 255, 0.6);
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.04);
            color: var(--text-main);
            padding: 13px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            border: 1px solid var(--border-glass);
            cursor: pointer;
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.09);
            border-color: rgba(255, 255, 255, 0.25);
            color: var(--text-pure);
        }
        .glass-card {
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 30px;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }
        .glass-card:hover {
            border-color: var(--border-active);
            transform: translateY(-4px);
            box-shadow: 0 15px 35px -10px rgba(0, 102, 255, 0.25);
        }

        /* 1. Hero 板块（无大图首屏，图标矩阵 + 状态条 + 短标题） */
        .hero-section {
            padding: 70px 0 90px;
            background: radial-gradient(circle at 50% 20%, rgba(0, 102, 255, 0.15) 0%, transparent 70%);
            border-bottom: 1px solid var(--border-glass);
        }
        .hero-status-bar {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            background: rgba(15, 23, 42, 0.85);
            padding: 8px 18px;
            border-radius: 40px;
            border: 1px solid var(--border-glass);
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .hero-title {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-pure);
            margin-bottom: 20px;
            max-width: 900px;
        }
        .hero-title span {
            background: linear-gradient(135deg, var(--cyan-accent), #38bdf8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-summary {
            font-size: 17px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 820px;
            margin-bottom: 34px;
        }
        .hero-icon-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 40px;
        }
        .hero-icon-item {
            background: rgba(15, 23, 42, 0.6);
            border: 1px solid var(--border-glass);
            padding: 20px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .hero-icon-box {
            width: 44px;
            height: 44px;
            background: rgba(0, 102, 255, 0.15);
            border: 1px solid rgba(0, 102, 255, 0.3);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--cyan-accent);
            font-size: 18px;
            font-weight: bold;
        }
        .hero-icon-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-pure);
            margin-bottom: 4px;
        }
        .hero-icon-desc {
            font-size: 12px;
            color: var(--text-sub);
        }

        /* 2. 资料目录区 (#catalog) */
        .catalog-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .catalog-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 16px;
        }
        .catalog-code {
            font-family: monospace;
            font-size: 12px;
            color: var(--cyan-accent);
            background: rgba(0, 210, 255, 0.1);
            padding: 2px 8px;
            border-radius: 4px;
        }
        .catalog-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-pure);
            margin-bottom: 10px;
        }
        .catalog-list {
            list-style: none;
            margin-top: 14px;
        }
        .catalog-list li {
            font-size: 13px;
            color: var(--text-muted);
            padding: 6px 0;
            border-bottom: 1px dashed rgba(255, 255, 255, 0.05);
            display: flex;
            justify-content: space-between;
        }

        /* 3. 价值点板块 (#values) */
        .values-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .value-card h3 {
            font-size: 20px;
            color: var(--text-pure);
            margin-bottom: 12px;
        }
        .value-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 4. 关键图表与指标条 (#metrics) */
        .chart-panel-wrapper {
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 36px;
            margin-bottom: 30px;
        }
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }
        .metric-num {
            font-size: 42px;
            font-weight: 800;
            color: var(--cyan-accent);
            line-height: 1.1;
            margin-bottom: 8px;
            font-family: monospace;
        }
        .metric-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 4px;
        }
        .metric-note {
            font-size: 12px;
            color: var(--text-sub);
        }

        /* 5. 技术底座与工业级指标 (#about) */
        .tech-arch-box {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .tech-spec-table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 20px;
        }
        .tech-spec-table th, .tech-spec-table td {
            padding: 12px 16px;
            text-align: left;
            font-size: 14px;
            border-bottom: 1px solid var(--border-glass);
        }
        .tech-spec-table th {
            color: var(--text-sub);
            width: 35%;
        }
        .tech-spec-table td {
            color: var(--text-pure);
            font-weight: 500;
        }

        /* 6. 核心优势矩阵 (#advantages) */
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        /* 7. 产品终端系列 (#products) */
        .products-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .product-badge {
            display: inline-block;
            font-size: 11px;
            padding: 3px 8px;
            border-radius: 3px;
            background: rgba(16, 185, 129, 0.15);
            color: var(--success-green);
            margin-bottom: 12px;
        }
        .product-title {
            font-size: 20px;
            color: var(--text-pure);
            margin-bottom: 8px;
        }
        .product-meta-list {
            margin: 16px 0;
            font-size: 13px;
            color: var(--text-muted);
        }
        .product-meta-list div {
            margin-bottom: 6px;
        }

        /* 8. 实战演示与控制台 (#showcase) */
        .showcase-container {
            background: #060913;
            border: 1px solid rgba(0, 102, 255, 0.3);
            border-radius: var(--radius-lg);
            padding: 32px;
            position: relative;
            overflow: hidden;
            background-image: linear-gradient(to bottom, rgba(10, 14, 26, 0.7), rgba(6, 9, 19, 0.95)), url('/assets/images/6488d14d9d06d5b2.png');
            background-size: cover;
            background-position: center;
        }
        .console-top-bar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid var(--border-glass);
            padding-bottom: 16px;
            margin-bottom: 24px;
        }
        .console-screen-mockup {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 24px;
        }
        .screen-view {
            border: 1px solid rgba(255, 255, 255, 0.1);
            background: rgba(15, 23, 42, 0.7);
            border-radius: var(--radius-sm);
            padding: 16px;
            min-height: 280px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .alert-stream-box {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.8;
        }
        .alert-item {
            padding: 8px 12px;
            margin-bottom: 8px;
            border-radius: 4px;
            background: rgba(255, 255, 255, 0.03);
            border-left: 3px solid var(--primary-blue);
        }
        .alert-item.urgent {
            border-left-color: #ef4444;
            background: rgba(239, 68, 68, 0.08);
        }

        /* 9. 垂直行业解决方案 (#scenarios) */
        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .scenario-card {
            border-top: 3px solid var(--primary-blue);
        }
        .scenario-card h4 {
            font-size: 18px;
            color: var(--text-pure);
            margin-bottom: 12px;
        }
        .scenario-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 10. 标杆项目案例 (#stories) */
        .case-study-box {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .case-image-holder {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-glass);
        }
        .case-image-holder img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }

        /* 11. 部署选型价格梯队 (#pricing) */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: center;
        }
        .pricing-card.featured {
            border: 2px solid var(--cyan-accent);
            box-shadow: 0 0 30px rgba(0, 210, 255, 0.2);
            transform: scale(1.03);
        }
        .pricing-tier-name {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-pure);
            margin-bottom: 8px;
        }
        .pricing-spec-list {
            list-style: none;
            margin: 24px 0;
            font-size: 14px;
            color: var(--text-muted);
        }
        .pricing-spec-list li {
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .pricing-spec-list li::before {
            content: "✓";
            color: var(--cyan-accent);
            font-weight: bold;
        }

        /* 12. 行业资讯与知识库 (#news) */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-date {
            font-size: 12px;
            color: var(--text-sub);
            margin-bottom: 8px;
        }
        .news-title {
            font-size: 17px;
            color: var(--text-pure);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .news-excerpt {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 13. 试用申领与咨询转化 (#trial) */
        .cta-card-box {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(10, 14, 26, 0.95));
            border: 1px solid rgba(0, 102, 255, 0.4);
            border-radius: var(--radius-lg);
            padding: 48px;
            box-shadow: 0 0 40px rgba(0, 102, 255, 0.2);
        }
        .form-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            margin-bottom: 18px;
        }
        .form-input, .form-select {
            width: 100%;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-sm);
            color: var(--text-pure);
            font-size: 14px;
            outline: none;
            transition: var(--transition);
        }
        .form-input:focus, .form-select:focus {
            border-color: var(--cyan-accent);
            background: rgba(255, 255, 255, 0.08);
            box-shadow: 0 0 10px rgba(0, 210, 255, 0.3);
        }
        .form-select option {
            background-color: var(--bg-secondary);
            color: var(--text-pure);
        }

        /* 页脚设计 */
        footer.site-footer {
            background: #060911;
            border-top: 1px solid var(--border-glass);
            padding: 60px 0 24px;
            font-size: 14px;
            color: var(--text-sub);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-col h5 {
            font-size: 15px;
            color: var(--text-pure);
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a:hover {
            color: var(--cyan-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
        }

        /* 响应式断点适配 */
        @media (max-width: 1024px) {
            .hero-icon-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenarios-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .tech-arch-box, .case-study-box, .console-screen-mockup {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 74px;
                left: 0;
                width: 100%;
                background: #0A0E1A;
                flex-direction: column;
                padding: 24px 0;
                border-bottom: 1px solid var(--border-glass);
                gap: 20px;
            }
            .nav-menu.open {
                display: flex;
            }
            .catalog-grid, .values-grid, .advantages-grid, .products-grid, .pricing-grid, .news-grid {
                grid-template-columns: 1fr;
            }
            .hero-icon-grid {
                grid-template-columns: 1fr;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 30px;
            }
            .section-title {
                font-size: 24px;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .pricing-card.featured {
                transform: none;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }