/* roulang page: index */
/* ========================================================
           全局设计系统与变量规范
           ======================================================== */
        :root {
            --primary: #11161B;
            --primary-light: #1E262F;
            --accent: #00D29E;
            --accent-hover: #00B789;
            --accent-glow: rgba(0, 210, 158, 0.25);
            --bg-light: #F4F7F6;
            --bg-card: #FFFFFF;
            --bg-dark: #0A0D10;
            --bg-dark-card: #141A20;
            --border-color: #E2E8F0;
            --border-dark: #222C36;
            --text-main: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --text-white: #F8FAFC;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-subtle: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
            --shadow-hover: 0 12px 30px -4px rgba(15, 23, 42, 0.12);
            --transition-smooth: cubic-bezier(0.16, 1, 0.3, 1) 0.3s;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

        /* 基础重置 */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-stack);
            color: var(--text-body);
            background-color: #FFFFFF;
            line-height: 1.68;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

        ul, ol {
            list-style: none;
        }

        button, input, select, textarea {
            font-family: inherit;
            font-size: 1rem;
            border: none;
            outline: none;
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .tnum {
            font-feature-settings: 'tnum';
            font-variant-numeric: tabular-nums;
        }

        /* 统一板块间距与标题排版 */
        section {
            padding: 96px 0;
            position: relative;
        }

        .section-header {
            text-align: center;
            max-width: 820px;
            margin: 0 auto 56px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            background: rgba(0, 210, 158, 0.1);
            color: #009973;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            margin-bottom: 16px;
            border: 1px solid rgba(0, 210, 158, 0.25);
        }

        .section-title {
            font-size: 2.15rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.02em;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 按钮与交互徽章 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 13px 28px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.98rem;
            cursor: pointer;
            transition: all var(--transition-smooth);
            text-align: center;
        }

        .btn-primary {
            background-color: var(--accent);
            color: var(--primary);
            box-shadow: 0 4px 14px var(--accent-glow);
        }

        .btn-primary:hover {
            background-color: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 210, 158, 0.4);
        }

        .btn-secondary {
            background-color: rgba(255, 255, 255, 0.1);
            color: var(--text-white);
            border: 1px solid rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(4px);
        }

        .btn-secondary:hover {
            background-color: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.4);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--border-color);
        }

        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent-hover);
            background: rgba(0, 210, 158, 0.05);
        }

        /* ========================================================
           顶层双行导航系统
           ======================================================== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            transition: background var(--transition-smooth);
        }

        .top-trust-bar {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.8rem;
            padding: 7px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .top-trust-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .trust-items {
            display: flex;
            gap: 20px;
        }

        .trust-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .trust-dot {
            width: 7px;
            height: 7px;
            background-color: var(--accent);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 8px var(--accent);
        }

        .main-nav-bar {
            padding: 16px 0;
        }

        .main-nav-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
        }

        .brand-icon-box {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-weight: 900;
            font-size: 1.1rem;
            box-shadow: 0 4px 10px rgba(17, 22, 27, 0.2);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .nav-link {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-body);
            position: relative;
            padding: 6px 0;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent);
            transition: width 0.25s ease;
        }

        .nav-link:hover {
            color: var(--primary);
        }

        .nav-link:hover::after {
            width: 100%;
        }

        .mobile-toggle {
            display: none;
            background: none;
            cursor: pointer;
            width: 32px;
            height: 32px;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
        }

        .mobile-toggle span {
            display: block;
            width: 100%;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all 0.3s;
        }

        /* ========================================================
           1. HERO 资源检索与看板区 (ID: banner)
           ======================================================== */
        .hero-section {
            background-color: var(--primary);
            background-image: radial-gradient(circle at 50% 30%, rgba(0, 210, 158, 0.12) 0%, transparent 60%),
                              linear-gradient(180deg, rgba(10, 13, 16, 0.82) 0%, rgba(17, 22, 27, 0.96) 100%),
                              url('/assets/images/4b40ae31e13357f6.webp');
            background-size: cover;
            background-position: center;
            color: var(--text-white);
            padding: 110px 0 90px;
            text-align: center;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-dark);
        }

        .hero-inner {
            max-width: 920px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        .hero-badge-pill {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(0, 210, 158, 0.3);
            border-radius: 999px;
            font-size: 0.88rem;
            color: var(--accent);
            margin-bottom: 24px;
        }

        .hero-title {
            font-size: clamp(2.4rem, 4.5vw, 3.8rem);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.03em;
            color: #FFFFFF;
            margin-bottom: 22px;
        }

        .hero-title span {
            color: var(--accent);
            display: inline-block;
        }

        .hero-desc {
            font-size: 1.15rem;
            color: rgba(248, 250, 252, 0.85);
            line-height: 1.8;
            max-width: 820px;
            margin: 0 auto 36px;
        }

        /* 搜索框居中版式 (蓝图执行) */
        .hero-search-box {
            background: #FFFFFF;
            padding: 6px 8px 6px 20px;
            border-radius: 50px;
            box-shadow: 0 12px 35px rgba(0, 0, 0, 0.3);
            display: flex;
            align-items: center;
            max-width: 660px;
            margin: 0 auto 24px;
            border: 2px solid transparent;
            transition: border-color var(--transition-smooth);
        }

        .hero-search-box:focus-within {
            border-color: var(--accent);
        }

        .hero-search-input {
            flex: 1;
            padding: 10px 12px;
            font-size: 1rem;
            color: var(--text-main);
            background: transparent;
        }

        .hero-search-input::placeholder {
            color: var(--text-muted);
        }

        .hero-search-btn {
            background: var(--accent);
            color: var(--primary);
            padding: 12px 26px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background var(--transition-smooth);
        }

        .hero-search-btn:hover {
            background: var(--accent-hover);
        }

        .hero-quick-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            gap: 10px;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.7);
        }

        .hero-tag-link {
            padding: 4px 12px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 4px;
            color: rgba(255, 255, 255, 0.9);
            border: 1px solid rgba(255, 255, 255, 0.12);
            transition: all 0.2s;
        }

        .hero-tag-link:hover {
            background: var(--accent);
            color: var(--primary);
            border-color: var(--accent);
        }

        .hero-stats-row {
            margin-top: 52px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            padding-top: 36px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .hero-stat-item {
            text-align: center;
        }

        .hero-stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .hero-stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
        }

        /* ========================================================
           2. 平台技术与核心引擎介绍区 (ID: about)
           ======================================================== */
        .about-section {
            background-color: #FFFFFF;
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 60px;
            align-items: center;
        }

        .about-content h2 {
            font-size: 2.1rem;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.3;
            margin-bottom: 20px;
        }

        .about-desc-p {
            font-size: 1.05rem;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 28px;
        }

        .about-specs-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-bottom: 36px;
        }

        .spec-item {
            padding: 16px;
            background: var(--bg-light);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
        }

        .spec-title {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 600;
            margin-bottom: 6px;
        }

        .spec-value {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--primary);
        }

        .about-image-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-subtle);
        }

        .about-image-card img {
            width: 100%;
            height: 480px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .about-image-card:hover img {
            transform: scale(1.03);
        }

        .about-image-badge {
            position: absolute;
            bottom: 20px;
            left: 20px;
            right: 20px;
            background: rgba(17, 22, 27, 0.9);
            backdrop-filter: blur(8px);
            padding: 16px 20px;
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: #FFFFFF;
        }

        /* ========================================================
           3. 核心技术优势矩阵区 (ID: advantages) - 服务亮点
           ======================================================== */
        .advantages-section {
            background-color: var(--bg-light);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .adv-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .adv-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 36px 30px;
            border: 1px solid var(--border-color);
            transition: all var(--transition-smooth);
            position: relative;
            display: flex;
            flex-direction: column;
        }

        .adv-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }

        .adv-icon-badge {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: rgba(0, 210, 158, 0.12);
            color: var(--accent-hover);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 800;
            margin-bottom: 22px;
            border: 1px solid rgba(0, 210, 158, 0.3);
        }

        .adv-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 14px;
        }

        .adv-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .adv-metric {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--primary);
            padding-top: 16px;
            border-top: 1px dashed var(--border-color);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .adv-metric span {
            color: var(--accent-hover);
        }

        /* ========================================================
           4. 热门产品与全栈解决方案区 (ID: products)
           ======================================================== */
        .products-section {
            background: #FFFFFF;
        }

        .products-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .product-card {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: #FFFFFF;
            box-shadow: var(--shadow-subtle);
            display: flex;
            flex-direction: column;
            transition: all var(--transition-smooth);
        }

        .product-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }

        .product-media {
            height: 220px;
            overflow: hidden;
            position: relative;
        }

        .product-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .product-card:hover .product-media img {
            transform: scale(1.05);
        }

        .product-category-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(17, 22, 27, 0.85);
            color: var(--accent);
            font-size: 0.78rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 4px;
            backdrop-filter: blur(4px);
        }

        .product-body {
            padding: 28px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .product-name {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .product-summary {
            font-size: 0.94rem;
            color: var(--text-muted);
            line-height: 1.68;
            margin-bottom: 22px;
        }

        .product-features {
            margin-bottom: 24px;
            flex-grow: 1;
        }

        .feature-row {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.88rem;
            color: var(--text-body);
            margin-bottom: 10px;
        }

        .feature-bullet {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: var(--accent);
        }

        .product-footer {
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .product-sla {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        /* ========================================================
           5. 时段卡：动态算力调度与时段分发 (ID: schedule) - 蓝图组件
           ======================================================== */
        .schedule-section {
            background-color: var(--bg-light);
            border-top: 1px solid var(--border-color);
        }

        .schedule-cards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .time-slot-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            position: relative;
            transition: all var(--transition-smooth);
        }

        .time-slot-card:hover {
            border-color: var(--accent);
            transform: translateY(-3px);
            box-shadow: var(--shadow-subtle);
        }

        .slot-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 14px;
        }

        .slot-time {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--primary);
        }

        .slot-badge {
            font-size: 0.75rem;
            font-weight: 700;
            padding: 3px 8px;
            border-radius: 4px;
            background: rgba(0, 210, 158, 0.12);
            color: #009973;
        }

        .slot-duty {
            font-size: 0.92rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .slot-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .slot-load-bar {
            height: 6px;
            background: #EDF2F7;
            border-radius: 999px;
            overflow: hidden;
            margin-bottom: 8px;
        }

        .slot-load-fill {
            height: 100%;
            background: var(--accent);
            border-radius: 999px;
        }

        .slot-stat-row {
            display: flex;
            justify-content: space-between;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* ========================================================
           6. 深色理念与赛事架构区 (ID: concepts)
           ======================================================== */
        .concepts-section {
            background-color: var(--bg-dark);
            color: var(--text-white);
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
        }

        .concepts-section .section-title {
            color: #FFFFFF;
        }

        .concepts-section .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }

        .topo-container {
            background: var(--bg-dark-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: 40px;
            position: relative;
        }

        .topo-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .topo-node {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition-smooth);
        }

        .topo-node:hover {
            border-color: var(--accent);
            background: rgba(0, 210, 158, 0.04);
            transform: translateY(-3px);
        }

        .node-step {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 800;
            color: var(--accent);
            background: rgba(0, 210, 158, 0.1);
            padding: 2px 8px;
            border-radius: 4px;
            margin-bottom: 12px;
        }

        .node-name {
            font-size: 1.1rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 10px;
        }

        .node-detail {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.6;
        }

        /* ========================================================
           7. 专家与核心技术团队 (ID: team) - 蓝图组件
           ======================================================== */
        .team-section {
            background-color: #FFFFFF;
        }

        .team-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .team-card {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
            background: #FFFFFF;
            transition: all var(--transition-smooth);
        }

        .team-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }

        .team-avatar-box {
            width: 80px;
            height: 80px;
            margin: 0 auto 18px;
            border-radius: 50%;
            background: var(--bg-light);
            border: 2px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
        }

        .team-name {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .team-role {
            font-size: 0.85rem;
            color: var(--accent-hover);
            font-weight: 600;
            margin-bottom: 14px;
        }

        .team-bio {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ========================================================
           8. 行业应用与用户落地故事 (ID: stories)
           ======================================================== */
        .stories-section {
            background-color: var(--bg-light);
            border-top: 1px solid var(--border-color);
        }

        .story-dual-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-subtle);
        }

        .story-img-wrap {
            height: 380px;
            overflow: hidden;
        }

        .story-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .story-dual-block:hover .story-img-wrap img {
            transform: scale(1.03);
        }

        .story-content {
            padding: 44px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .story-tag {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--accent-hover);
            margin-bottom: 12px;
            text-transform: uppercase;
        }

        .story-heading {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 16px;
            line-height: 1.35;
        }

        .story-text {
            font-size: 0.98rem;
            color: var(--text-body);
            line-height: 1.75;
            margin-bottom: 24px;
        }

        .story-kpi-row {
            display: flex;
            gap: 28px;
        }

        .kpi-item {
            border-left: 2px solid var(--accent);
            padding-left: 12px;
        }

        .kpi-value {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
        }

        .kpi-label {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ========================================================
           9. 平台关键运行数据统计条 (ID: metrics)
           ======================================================== */
        .metrics-section {
            background-color: var(--primary);
            color: #FFFFFF;
            padding: 60px 0;
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
        }

        .metric-col {
            position: relative;
        }

        .metric-col:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 20%;
            height: 60%;
            width: 1px;
            background: rgba(255, 255, 255, 0.12);
        }

        .metric-big-num {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--accent);
            line-height: 1.1;
            margin-bottom: 8px;
        }

        .metric-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 6px;
        }

        .metric-sub {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.6);
        }

        /* ========================================================
           10. 评价与保障见证区 (ID: testimonials) - 蓝图组件
           ======================================================== */
        .testimonials-section {
            background-color: #FFFFFF;
        }

        .testi-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .testi-card {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            padding: 34px 28px;
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .testi-quote {
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.75;
            margin-bottom: 24px;
            position: relative;
        }

        .testi-quote::before {
            content: '“';
            font-size: 2.5rem;
            color: var(--accent);
            line-height: 1;
            display: block;
            margin-bottom: 8px;
            font-family: Georgia, serif;
        }

        .testi-author {
            display: flex;
            align-items: center;
            gap: 14px;
            padding-top: 16px;
            border-top: 1px solid rgba(0, 0, 0, 0.06);
        }

        .author-info h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-main);
        }

        .author-info p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ========================================================
           11. 新闻资讯与技术迭代公报 (ID: news)
           ======================================================== */
        .news-section {
            background-color: var(--bg-light);
            border-top: 1px solid var(--border-color);
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .news-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-subtle);
            display: flex;
            flex-direction: column;
            transition: all var(--transition-smooth);
        }

        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .news-cover {
            height: 190px;
            overflow: hidden;
        }

        .news-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .news-card:hover .news-cover img {
            transform: scale(1.04);
        }

        .news-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .news-heading {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .news-abstract {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.65;
            flex-grow: 1;
            margin-bottom: 16px;
        }

        .news-action {
            font-size: 0.88rem;
            font-weight: 700;
            color: #009973;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* ========================================================
           12. 合作伙伴与软硬件生态 (ID: partners)
           ======================================================== */
        .partners-section {
            background-color: #FFFFFF;
            padding: 70px 0;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .partners-header {
            text-align: center;
            margin-bottom: 36px;
        }

        .partners-header p {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-muted);
            letter-spacing: 0.05em;
        }

        .partners-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 20px;
            align-items: center;
        }

        .partner-box {
            padding: 16px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            text-align: center;
            font-weight: 700;
            color: var(--text-muted);
            font-size: 0.9rem;
            background: var(--bg-light);
            transition: all 0.2s;
        }

        .partner-box:hover {
            border-color: var(--accent);
            color: var(--primary);
            background: #FFFFFF;
        }

        /* ========================================================
           13. 常见技术与集成问题 (ID: faq)
           ======================================================== */
        .faq-section {
            background-color: #FFFFFF;
        }

        .faq-accordion {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            background: #FFFFFF;
            transition: border-color 0.2s;
        }

        .faq-item[open] {
            border-color: var(--accent);
        }

        .faq-question {
            padding: 20px 24px;
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--bg-light);
            user-select: none;
        }

        .faq-question::-webkit-details-marker {
            display: none;
        }

        .faq-icon {
            font-size: 1.2rem;
            color: var(--text-muted);
            transition: transform 0.25s ease;
        }

        .faq-item[open] .faq-icon {
            transform: rotate(45deg);
            color: var(--accent-hover);
        }

        .faq-answer {
            padding: 20px 24px;
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.75;
            background: #FFFFFF;
            border-top: 1px solid var(--border-color);
        }

        /* ========================================================
           14. 即时接入与技术诊断预约表单 (ID: cta) - 蓝图组件
           ======================================================== */
        .cta-section {
            background-color: var(--primary);
            color: #FFFFFF;
            padding: 96px 0;
            position: relative;
            background-image: radial-gradient(circle at 80% 20%, rgba(0, 210, 158, 0.1) 0%, transparent 50%),
                              url('/assets/images/1d47473da2038c41.jpg');
            background-size: cover;
            background-position: center;
        }

        .cta-wrap {
            max-width: 900px;
            margin: 0 auto;
            background: rgba(17, 22, 27, 0.92);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: 48px;
            backdrop-filter: blur(16px);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
        }

        .cta-header {
            text-align: center;
            margin-bottom: 36px;
        }

        .cta-header h2 {
            font-size: 2.1rem;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 12px;
        }

        .cta-header p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.7);
        }

        .cta-form {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .form-full {
            grid-column: span 2;
        }

        .form-group label {
            display: block;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 8px;
            font-weight: 600;
        }

        .form-control {
            width: 100%;
            padding: 13px 16px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-sm);
            color: #FFFFFF;
            font-size: 0.95rem;
            transition: border-color 0.2s;
        }

        .form-control:focus {
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.1);
        }

        .form-control::placeholder {
            color: rgba(255, 255, 255, 0.35);
        }

        select.form-control option {
            background-color: var(--primary);
            color: #FFFFFF;
        }

        .form-submit-row {
            grid-column: span 2;
            margin-top: 12px;
            text-align: center;
        }

        .form-toast {
            display: none;
            margin-top: 16px;
            padding: 12px;
            border-radius: var(--radius-sm);
            background: rgba(0, 210, 158, 0.15);
            border: 1px solid var(--accent);
            color: var(--accent);
            font-size: 0.92rem;
        }

        /* ========================================================
           页脚系统 (Footer)
           ======================================================== */
        .site-footer {
            background-color: #0A0D10;
            color: rgba(255, 255, 255, 0.7);
            border-top: 1px solid var(--border-dark);
            padding: 80px 0 32px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 60px;
        }

        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 16px;
        }

        .footer-brand p {
            line-height: 1.7;
            margin-bottom: 20px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 18px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-link {
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s;
        }

        .footer-link:hover {
            color: var(--accent);
        }

        .footer-contact-item {
            display: flex;
            gap: 10px;
            margin-bottom: 12px;
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-bottom {
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ========================================================
           响应式媒体查询
           ======================================================== */
        @media (max-width: 1024px) {
            .adv-grid,
            .products-grid,
            .schedule-cards-grid,
            .team-grid,
            .testi-grid,
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .topo-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .partners-grid {
                grid-template-columns: repeat(3, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }

            .about-grid {
                grid-template-columns: 1fr;
            }

            .about-image-card img {
                height: 380px;
            }
        }

        @media (max-width: 768px) {
            section {
                padding: 64px 0;
            }

            .top-trust-bar {
                display: none;
            }

            .nav-links {
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: #FFFFFF;
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 10px 20px rgba(0,0,0,0.08);
                display: none;
                gap: 16px;
            }

            .nav-links.active {
                display: flex;
            }

            .mobile-toggle {
                display: flex;
            }

            .hero-title {
                font-size: 2.1rem;
            }

            .hero-stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .adv-grid,
            .products-grid,
            .schedule-cards-grid,
            .team-grid,
            .testi-grid,
            .news-grid,
            .topo-grid {
                grid-template-columns: 1fr;
            }

            .story-dual-block {
                grid-template-columns: 1fr;
            }

            .story-img-wrap {
                height: 240px;
            }

            .story-content {
                padding: 28px;
            }

            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }

            .metric-col:not(:last-child)::after {
                display: none;
            }

            .partners-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .cta-form {
                grid-template-columns: 1fr;
            }

            .form-full {
                grid-column: span 1;
            }

            .form-submit-row {
                grid-column: span 1;
            }

            .cta-wrap {
                padding: 28px 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
        }