/* roulang page: index */
:root {
            --primary: #00C853;
            --primary-hover: #05A647;
            --secondary: #AEEA00;
            --accent: #FF6D00;
            --accent-hover: #E65100;
            --dark: #0F172A;
            --dark-card: #1E293B;
            --dark-border: #334155;
            --light-bg: #F4F7F6;
            --white: #FFFFFF;
            --text-main: #1E293B;
            --text-muted: #64748B;
            --border-light: #E2E8F0;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-subtle: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 12px 30px -4px rgba(0, 200, 83, 0.16);
            --shadow-dark: 0 16px 36px -6px rgba(0, 0, 0, 0.35);
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--text-main);
            background-color: var(--white);
            margin: 0;
            padding: 0;
            line-height: 1.65;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        * {
            box-sizing: border-box;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: all 0.25s ease;
        }

        a:hover, a:focus {
            color: var(--primary-hover);
        }

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

        .num-font {
            font-family: "DIN", "Roboto Condensed", -apple-system, sans-serif;
            font-variant-numeric: tabular-nums;
        }

        /* 顶部微型服务栏 */
        .top-micro-bar {
            background-color: #0B1120;
            color: #94A3B8;
            font-size: 13px;
            padding: 7px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .top-micro-bar .grid-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .top-micro-info {
            display: flex;
            gap: 20px;
            align-items: center;
        }
        .top-micro-info span i {
            color: var(--primary);
            margin-right: 6px;
        }
        .top-micro-links {
            display: flex;
            gap: 18px;
        }
        .top-micro-links a {
            color: #94A3B8;
            font-size: 13px;
        }
        .top-micro-links a:hover {
            color: var(--secondary);
        }

        /* 主导航条 */
        .main-header-nav {
            background: rgba(255, 255, 255, 0.98);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 14px rgba(15, 23, 42, 0.07);
            backdrop-filter: blur(8px);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .site-brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -0.3px;
        }
        .logo-symbol {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary) 0%, #008738 100%);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 10px rgba(0, 200, 83, 0.3);
        }
        .site-brand-logo span {
            color: var(--text-main);
        }
        .site-brand-logo span em {
            font-style: normal;
            color: var(--primary);
            margin-left: 4px;
        }
        .nav-anchors {
            display: flex;
            gap: 24px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-anchors li a {
            color: var(--text-main);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 4px;
            position: relative;
        }
        .nav-anchors li a:hover,
        .nav-anchors li a.active {
            color: var(--primary);
        }
        .nav-anchors li a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: width 0.25s ease;
        }
        .nav-anchors li a:hover::after {
            width: 100%;
        }
        .nav-cta-btn {
            background: linear-gradient(135deg, var(--accent) 0%, #E65100 100%);
            color: #fff !important;
            padding: 10px 22px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(255, 109, 0, 0.35);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .nav-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(255, 109, 0, 0.45);
        }

        /* 移动端汉堡按钮 */
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--dark);
            cursor: pointer;
            padding: 6px;
        }

        /* 通用 Section 架构 */
        section {
            padding: 85px 0;
            position: relative;
        }
        .section-header {
            text-align: center;
            max-width: 820px;
            margin: 0 auto 52px auto;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.8px;
            color: var(--primary);
            background: rgba(0, 200, 83, 0.1);
            padding: 4px 14px;
            border-radius: 50px;
            margin-bottom: 12px;
        }
        .section-tag.tag-orange {
            color: var(--accent);
            background: rgba(255, 109, 0, 0.1);
        }
        .section-tag.tag-dark {
            color: var(--secondary);
            background: rgba(174, 234, 0, 0.15);
        }
        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--dark);
            line-height: 1.35;
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
        }

        /* 基础按钮组 */
        .btn-brand-primary {
            background-color: var(--primary);
            color: #fff !important;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid transparent;
        }
        .btn-brand-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(0, 200, 83, 0.35);
        }
        .btn-brand-outline {
            background-color: transparent;
            color: #fff !important;
            padding: 12px 26px;
            font-size: 15px;
            font-weight: 600;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.4);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-brand-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
        }

        /* 板块 1: 首屏 Hero 矩阵 */
        .hero-section {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.94) 0%, rgba(11, 17, 32, 0.96) 100%),
                        url('/assets/images/9f3fcdaac59f1e14.png') center center / cover no-repeat;
            color: #fff;
            padding: 90px 0 110px 0;
            position: relative;
        }
        .hero-content h1 {
            font-size: 42px;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 20px;
        }
        .hero-lead-text {
            font-size: 16px;
            color: #CBD5E1;
            margin-bottom: 30px;
            line-height: 1.8;
        }
        .hero-countdown-box {
            background: rgba(30, 41, 59, 0.7);
            border: 1px solid rgba(0, 200, 83, 0.35);
            border-radius: 12px;
            padding: 18px 22px;
            margin-bottom: 32px;
            backdrop-filter: blur(8px);
        }
        .countdown-title {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 14px;
            color: #94A3B8;
            margin-bottom: 10px;
        }
        .countdown-live-badge {
            background: #EF4444;
            color: #fff;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 11px;
            font-weight: 700;
            animation: pulse-live 1.5s infinite;
        }
        @keyframes pulse-live {
            0% { opacity: 1; }
            50% { opacity: 0.5; }
            100% { opacity: 1; }
        }
        .countdown-digits {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .time-box {
            background: #0F172A;
            border: 1px solid #334155;
            padding: 6px 12px;
            border-radius: 6px;
            text-align: center;
        }
        .time-box .num {
            font-size: 24px;
            font-weight: 800;
            color: var(--secondary);
            display: block;
        }
        .time-box .label {
            font-size: 11px;
            color: #64748B;
        }
        .countdown-digits .colon {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
        }
        .countdown-subscribe-form {
            margin-top: 12px;
            display: flex;
            gap: 8px;
        }
        .countdown-subscribe-form input {
            background: rgba(15, 23, 42, 0.9);
            border: 1px solid #334155;
            color: #fff;
            font-size: 13px;
            padding: 8px 12px;
            border-radius: 6px;
            margin: 0;
            height: auto;
        }
        .countdown-subscribe-form button {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 8px 14px;
            border-radius: 6px;
            font-size: 13px;
            cursor: pointer;
            white-space: nowrap;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            align-items: center;
            flex-wrap: wrap;
        }
        .hero-dashboard-mockup {
            background: #1E293B;
            border: 1px solid #334155;
            border-radius: 14px;
            box-shadow: var(--shadow-dark);
            padding: 16px;
            position: relative;
        }
        .mockup-header-bar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid #334155;
            padding-bottom: 12px;
            margin-bottom: 16px;
        }
        .mockup-header-bar .dots {
            display: flex;
            gap: 6px;
        }
        .mockup-header-bar .dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #475569;
        }
        .mockup-header-bar .dot:nth-child(1) { background: #EF4444; }
        .mockup-header-bar .dot:nth-child(2) { background: #F59E0B; }
        .mockup-header-bar .dot:nth-child(3) { background: #10B981; }
        .mockup-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }
        .mockup-card {
            background: #0F172A;
            border-radius: 8px;
            padding: 14px;
            border: 1px solid rgba(255, 255, 255, 0.05);
        }
        .mockup-card h6 {
            color: #94A3B8;
            font-size: 12px;
            margin-bottom: 8px;
        }
        .mockup-metric {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
        }
        .mockup-metric.c-green { color: var(--primary); }
        .mockup-metric.c-orange { color: var(--accent); }
        .mockup-metric.c-lime { color: var(--secondary); }
        .mockup-chart-line {
            height: 6px;
            background: #1E293B;
            border-radius: 3px;
            margin-top: 10px;
            overflow: hidden;
        }
        .mockup-chart-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 3px;
        }

        /* 板块 2: 核心架构与可信参数介绍区 */
        .section-architecture {
            background-color: var(--white);
        }
        .arch-image-wrap {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-subtle);
        }
        .arch-image-wrap img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }
        .arch-badge-floating {
            position: absolute;
            bottom: 20px;
            left: 20px;
            background: rgba(15, 23, 42, 0.9);
            color: #fff;
            padding: 14px 20px;
            border-radius: 10px;
            border-left: 4px solid var(--primary);
            backdrop-filter: blur(6px);
        }
        .arch-badge-floating strong {
            display: block;
            font-size: 15px;
            color: var(--secondary);
        }
        .arch-badge-floating span {
            font-size: 13px;
            color: #94A3B8;
        }
        .spec-list-group {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-top: 24px;
        }
        .spec-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 16px;
            background: var(--light-bg);
            border-radius: 8px;
            border-left: 3px solid #CBD5E1;
            transition: all 0.25s ease;
        }
        .spec-item:hover {
            border-left-color: var(--primary);
            background: #E8F5E9;
            transform: translateX(4px);
        }
        .spec-item i {
            color: var(--primary);
            font-size: 20px;
            margin-top: 2px;
        }
        .spec-item h5 {
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 4px;
        }
        .spec-item p {
            font-size: 14px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* 板块 3: 六大核心优势 */
        .section-advantages {
            background-color: var(--light-bg);
        }
        .adv-card {
            background: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 30px 24px;
            box-shadow: var(--shadow-subtle);
            transition: all 0.3s cubic-bezier(0.2, 0, 0, 1);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .adv-card:hover {
            transform: translateY(-6px);
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
        }
        .adv-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: rgba(0, 200, 83, 0.1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
        }
        .adv-card h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 12px;
        }
        .adv-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 18px;
            flex-grow: 1;
        }
        .adv-tag-pill {
            display: inline-block;
            align-self: flex-start;
            font-size: 12px;
            color: var(--text-muted);
            background: #EDF2F7;
            padding: 3px 10px;
            border-radius: 4px;
        }

        /* 板块 4: 三大核心产品矩阵 */
        .section-products {
            background-color: var(--white);
        }
        .product-card {
            background: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-subtle);
            transition: all 0.3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .product-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 16px 32px rgba(15, 23, 42, 0.1);
            border-color: #CBD5E1;
        }
        .product-card-thumb {
            position: relative;
            height: 200px;
            overflow: hidden;
        }
        .product-card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .product-card:hover .product-card-thumb img {
            transform: scale(1.04);
        }
        .product-status-tag {
            position: absolute;
            top: 14px;
            right: 14px;
            background: rgba(15, 23, 42, 0.85);
            color: var(--secondary);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 20px;
        }
        .product-card-body {
            padding: 26px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        .product-card-body h4 {
            font-size: 20px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 12px;
        }
        .product-card-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 18px;
        }
        .product-check-list {
            list-style: none;
            margin: 0 0 24px 0;
            padding: 0;
            flex-grow: 1;
        }
        .product-check-list li {
            font-size: 13px;
            color: #475569;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .product-check-list li i {
            color: var(--primary);
            font-size: 14px;
        }
        .product-card-btn {
            display: block;
            text-align: center;
            background: var(--light-bg);
            color: var(--dark);
            font-size: 14px;
            font-weight: 600;
            padding: 10px;
            border-radius: 8px;
            border: 1px solid var(--border-light);
            transition: all 0.2s ease;
        }
        .product-card-btn:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* 板块 5: 全业务场景应用流 */
        .section-solutions {
            background-color: var(--light-bg);
        }
        .flow-tab-nav {
            display: flex;
            justify-content: center;
            gap: 12px;
            margin-bottom: 36px;
            flex-wrap: wrap;
        }
        .flow-tab-btn {
            background: var(--white);
            border: 1px solid var(--border-light);
            color: var(--text-main);
            padding: 10px 24px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.25s ease;
        }
        .flow-tab-btn.active, .flow-tab-btn:hover {
            background: var(--dark);
            color: #fff;
            border-color: var(--dark);
        }
        .flow-panel-wrap {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 36px;
            box-shadow: var(--shadow-subtle);
            border: 1px solid var(--border-light);
        }
        .step-phase-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            position: relative;
        }
        .step-phase-item {
            background: var(--light-bg);
            border-radius: 10px;
            padding: 22px;
            border-top: 3px solid var(--primary);
            position: relative;
        }
        .step-phase-item .phase-num {
            font-size: 12px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .step-phase-item h5 {
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
        }
        .step-phase-item p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* 板块 6: 顶部导航栏 */\n    .top-nav {\n        background-color: #333;\n        color: white;\n        padding: 10px;\n        text-align: center;\n    }\n\n    /* 板块 7: 主内容区域 */\n    .main-content {\n        padding: 20px;\n    }\n\n    /* 板块 8: 底部区域 */\n    .footer {\n        background-color: #333;\n        color: white;\n        text-align: center;\n        padding: 10px;\n        position: fixed;\n        bottom: 0;\n        width: 100%;\n    }\n